Flemmard | 939472a | 2014-02-21 20:23:00 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * Includes |
| 3 | */ |
| 4 | #include <linux/init.h> |
| 5 | #include <linux/module.h> |
| 6 | #include <linux/kernel.h> |
| 7 | #include <linux/sched.h> |
| 8 | #include <linux/errno.h> |
| 9 | #include <linux/list.h> |
| 10 | #include <linux/wait.h> |
| 11 | #include <linux/spinlock.h> |
| 12 | #include <linux/delay.h> |
| 13 | #include <linux/interrupt.h> |
| 14 | #include <linux/platform_device.h> |
| 15 | #include <linux/input.h> |
| 16 | #include <linux/wait.h> |
| 17 | #include <linux/bitops.h> |
| 18 | #include <linux/ctype.h> |
| 19 | #include <linux/slab.h> |
| 20 | #include <linux/a6_sbw_interface.h> |
| 21 | #include <linux/a6.h> |
| 22 | #ifdef CONFIG_HIGH_RES_TIMERS |
| 23 | #include <linux/hrtimer.h> |
| 24 | #endif |
| 25 | #include <linux/cpufreq.h> |
| 26 | #include <linux/i2c.h> |
| 27 | #include <linux/workqueue.h> |
| 28 | #include <linux/mutex.h> |
| 29 | #include <linux/sysfs.h> |
| 30 | #include <linux/uaccess.h> |
| 31 | #include <linux/types.h> |
| 32 | #include <linux/miscdevice.h> |
| 33 | #include <linux/fs.h> |
| 34 | #include <linux/poll.h> |
| 35 | #include <asm/io.h> |
| 36 | #include <linux/gpio.h> |
| 37 | #include <linux/cdev.h> |
| 38 | #include <linux/debugfs.h> |
| 39 | #include <linux/switch.h> |
| 40 | #include <linux/power_supply.h> |
| 41 | #include <mach/msm_hsusb.h> |
| 42 | #include <linux/max8903b_charger.h> |
| 43 | |
| 44 | #include "high_level_funcs.h" |
| 45 | |
| 46 | void max8903b_set_connected_ps(unsigned connected); |
| 47 | |
| 48 | #define A2A_RD_BUFF_SIZE (4 * 1024) |
| 49 | #define A2A_WR_BUFF_SIZE (4 * 1024) |
| 50 | |
| 51 | #define A6_DEBUG |
| 52 | #define A6_PQ |
| 53 | //#define A6_I2C_RETRY |
| 54 | |
| 55 | #ifdef A6_DEBUG |
| 56 | #define ASSERT(i) BUG_ON(!(i)) |
| 57 | |
| 58 | #else |
| 59 | #define ASSERT(i) ((void)0) |
| 60 | |
| 61 | #endif |
| 62 | |
| 63 | |
| 64 | enum { |
| 65 | A6_DEBUG_VERBOSE = 0x01, |
| 66 | }; |
| 67 | |
| 68 | static int a6_debug_mask = 0x0; |
| 69 | static int a6_tp_irq_count = 0; |
| 70 | static int a6_t2s_dup_correct = 0; |
| 71 | static int a6_disable_dock_switch = 0; |
| 72 | |
| 73 | static int param_set_disable_dock_switch(const char *val, struct kernel_param *kp); |
| 74 | param_check_int(disable_dock_switch, &(a6_disable_dock_switch)); |
| 75 | module_param_call(disable_dock_switch, param_set_disable_dock_switch, |
| 76 | param_get_int, &a6_disable_dock_switch, |
| 77 | S_IRUGO | S_IWUSR | S_IWGRP |
| 78 | ); |
| 79 | __MODULE_PARM_TYPE(disable_dock_switch, int); |
| 80 | |
| 81 | module_param_named( |
| 82 | debug_mask, a6_debug_mask, int, S_IRUGO | S_IWUSR | S_IWGRP |
| 83 | ); |
| 84 | |
| 85 | module_param_named( |
| 86 | a6_irq_count, a6_tp_irq_count, int, S_IRUGO | S_IWUSR | S_IWGRP |
| 87 | ); |
| 88 | |
| 89 | module_param_named( |
| 90 | t2s_dup_correct, a6_t2s_dup_correct, int, S_IRUGO | S_IWUSR | S_IWGRP |
| 91 | ); |
| 92 | |
| 93 | #define A6_DPRINTK(mask, level, message, ...) \ |
| 94 | do { \ |
| 95 | if ((mask) & a6_debug_mask) \ |
| 96 | printk(level message , ##__VA_ARGS__); \ |
| 97 | } while (0) |
| 98 | |
| 99 | #define PROFILE_USAGE |
| 100 | #if defined PROFILE_USAGE |
| 101 | bool reset_active = false; |
| 102 | uint32_t start_time; |
| 103 | int32_t diff_time; |
| 104 | |
| 105 | uint32_t start_last_a6_activity = 0; |
| 106 | #endif |
| 107 | |
| 108 | long a6_last_ps_connect = 0; |
| 109 | |
| 110 | /* page 0x00 */ |
| 111 | /* host interrupts */ |
| 112 | #define TS2_I2C_INT_MASK_0 0x0000 |
| 113 | #define TS2_I2C_INT_MASK_1 0x0001 |
| 114 | #define TS2_I2C_INT_MASK_2 0x0002 |
| 115 | #define TS2_I2C_INT_MASK_3 0x0003 |
| 116 | #define TS2_I2C_INT_STATUS_0 0x0004 |
| 117 | #define TS2_I2C_INT_STATUS_1 0x0005 |
| 118 | #define TS2_I2C_INT_STATUS_2 0x0006 |
| 119 | #define TS2_I2C_INT_STATUS_3 0x0007 |
| 120 | #define TS2_I2C_INT_0_GPIOA_7 0x80 |
| 121 | #define TS2_I2C_INT_0_GPIOA_6 0x40 |
| 122 | #define TS2_I2C_INT_0_GPIOA_5 0x20 |
| 123 | #define TS2_I2C_INT_0_GPIOA_4 0x10 |
| 124 | #define TS2_I2C_INT_0_GPIOA_3 0x08 |
| 125 | #define TS2_I2C_INT_0_GPIOA_2 0x04 |
| 126 | #define TS2_I2C_INT_0_GPIOA_1 0x02 |
| 127 | #define TS2_I2C_INT_0_GPIOA_0 0x01 |
| 128 | #define TS2_I2C_INT_0_GPIOA_MASK 0xff |
| 129 | #define TS2_I2C_INT_1_COMM_RX_FULL 0x02 |
| 130 | #define TS2_I2C_INT_1_COMM_TX_EMPTY 0x01 |
| 131 | #define TS2_I2C_INT_2_BAT_TEMP_HIGH 0x20 |
| 132 | #define TS2_I2C_INT_2_BAT_TEMP_LOW 0x10 |
| 133 | #define TS2_I2C_INT_2_BAT_VOLT_LOW 0x08 |
| 134 | #define TS2_I2C_INT_2_BAT_RARC_CRIT 0x04 |
| 135 | #define TS2_I2C_INT_2_BAT_RARC_LOW2 0x02 |
| 136 | #define TS2_I2C_INT_2_BAT_RARC_LOW1 0x01 |
| 137 | #define TS2_I2C_INT_3_A2A_CONNECT_CHANGE 0x08 |
| 138 | #define TS2_I2C_INT_3_FLAGS_CHANGE 0x04 |
| 139 | #define TS2_I2C_INT_3_LOG 0x02 |
| 140 | #define TS2_I2C_INT_3_RESET 0x01 |
| 141 | |
| 142 | |
| 143 | /* page 0x01 */ |
| 144 | /* battery (airboard only); interface defined by phone teams */ |
| 145 | #define TS2_I2C_BAT_STATUS 0x0100 |
| 146 | #define TS2_I2C_BAT_RARC 0x0101 |
| 147 | #define TS2_I2C_BAT_RSRC 0x0102 |
| 148 | #define TS2_I2C_BAT_AVG_CUR_MSB 0x0103 |
| 149 | #define TS2_I2C_BAT_AVG_CUR_LSB 0x0104 |
| 150 | #define TS2_I2C_BAT_TEMP_MSB 0x0105 |
| 151 | #define TS2_I2C_BAT_TEMP_LSB 0x0106 |
| 152 | #define TS2_I2C_BAT_VOLT_MSB 0x0107 |
| 153 | #define TS2_I2C_BAT_VOLT_LSB 0x0108 |
| 154 | #define TS2_I2C_BAT_CUR_MSB 0x0109 |
| 155 | #define TS2_I2C_BAT_CUR_LSB 0x010a |
| 156 | #define TS2_I2C_BAT_COULOMB_MSB 0x010b |
| 157 | #define TS2_I2C_BAT_COULOMB_LSB 0x010c |
| 158 | #define TS2_I2C_BAT_AS 0x010d |
| 159 | #define TS2_I2C_BAT_FULL_MSB 0x010e |
| 160 | #define TS2_I2C_BAT_FULL_LSB 0x010f |
| 161 | #define TS2_I2C_BAT_FULL40_MSB 0x0110 |
| 162 | #define TS2_I2C_BAT_FULL40_LSB 0x0111 |
| 163 | #define TS2_I2C_BAT_RSNSP 0x0112 |
| 164 | #define TS2_I2C_BAT_RAAC_MSB 0x0113 |
| 165 | #define TS2_I2C_BAT_RAAC_LSB 0x0114 |
| 166 | #define TS2_I2C_BAT_SACR_MSB 0x0115 |
| 167 | #define TS2_I2C_BAT_SACR_LSB 0x0116 |
| 168 | #define TS2_I2C_BAT_ASL 0x0117 |
| 169 | #define TS2_I2C_BAT_FAC_MSB 0x0118 |
| 170 | #define TS2_I2C_BAT_FAC_LSB 0x0119 |
| 171 | |
| 172 | #define TS2_I2C_BAT_ROMID_0 0x0120 |
| 173 | #define TS2_I2C_BAT_ROMID(x) \ |
| 174 | (TS2_I2C_BAT_ROMID_0 + (x)) |
| 175 | |
| 176 | #define TS2_I2C_BAT_COMMAND_STATUS 0x0140 |
| 177 | #define TS2_I2C_BAT_COMMAND_AUTH 0x81 |
| 178 | #define TS2_I2C_BAT_COMMAND_REFRESH 0x82 |
| 179 | #define TS2_I2C_BAT_COMMAND_WAKE 0x83 |
| 180 | #define TS2_I2C_BAT_COMMAND_OFF 0xe9 |
| 181 | #define TS2_I2C_BAT_STATUS_AUTH_FAIL 0x08 |
| 182 | #define TS2_I2C_BAT_STATUS_AUTH_PASS 0x04 |
| 183 | #define TS2_I2C_BAT_STATUS_REGS_VALID 0x02 |
| 184 | #define TS2_I2C_BAT_STATUS_BUSY 0x01 |
| 185 | |
| 186 | |
| 187 | /* battery configuration (airboard only) */ |
| 188 | #define TS2_I2C_BAT_TEMP_LOW_MSB 0x0180 |
| 189 | #define TS2_I2C_BAT_TEMP_LOW_LSB 0x0181 |
| 190 | #define TS2_I2C_BAT_TEMP_HIGH_MSB 0x0182 |
| 191 | #define TS2_I2C_BAT_TEMP_HIGH_LSB 0x0183 |
| 192 | #define TS2_I2C_BAT_VOLT_LOW_MSB 0x0184 |
| 193 | #define TS2_I2C_BAT_VOLT_LOW_LSB 0x0185 |
| 194 | #define TS2_I2C_BAT_RARC_CRIT 0x0186 |
| 195 | #define TS2_I2C_BAT_RARC_LOW_2 0x0187 |
| 196 | #define TS2_I2C_BAT_RARC_LOW_1 0x0188 |
| 197 | |
| 198 | #define TS2_I2C_BAT_CHALLENGE_0 0x01e0 |
| 199 | #define TS2_I2C_BAT_CHALLENGE(x) \ |
| 200 | (TS2_I2C_BAT_CHALLENGE_0 + (x)) |
| 201 | #define TS2_I2C_BAT_RESPONSE_0 \ |
| 202 | (TS2_I2C_BAT_CHALLENGE_0 + 8) |
| 203 | #define TS2_I2C_BAT_RESPONSE(x) \ |
| 204 | (TS2_I2C_BAT_RESPONSE_0 + (x)) |
| 205 | |
| 206 | |
| 207 | /* page 0x02 */ |
| 208 | /* comms */ |
| 209 | #define TS2_I2C_COMM_STATUS 0x0200 |
| 210 | #define TS2_I2C_COMM_STATUS_RX_FULL 0x02 |
| 211 | #define TS2_I2C_COMM_STATUS_TX_EMPTY 0x01 |
| 212 | #define TS2_I2C_COMM_TXDATA_RXDATA_RESERVED_1 0x0201 /* reserved 1 */ |
| 213 | #define TS2_I2C_COMM_TXDATA_RXDATA_RESERVED_2 0x0202 /* reserved 2 */ |
| 214 | #define TS2_I2C_COMM_TXDATA_RXDATA 0x0203 /* side-effect */ |
| 215 | |
| 216 | /* page 0x03 */ |
| 217 | /* log */ |
| 218 | #define TS2_I2C_LOG_LEVEL 0x0300 |
| 219 | #define TS2_I2C_LOG_INT_THRESHOLD 0x0301 |
| 220 | #define TS2_I2C_LOG_LOST_MSB_RESERVED_1 0x0302 /* reserved 1 */ |
| 221 | #define TS2_I2C_LOG_LOST_MSB_RESERVED_2 0x0303 /* reserved 2 */ |
| 222 | #define TS2_I2C_LOG_LOST_MSB 0x0304 /* side-effect */ |
| 223 | #define TS2_I2C_LOG_LOST_LSB 0x0305 |
| 224 | #define TS2_I2C_LOG_COUNT_MSB 0x0306 |
| 225 | #define TS2_I2C_LOG_COUNT_LSB 0x0307 |
| 226 | #define TS2_I2C_LOG_ENTRY_MSB_RESERVED_1 0x0308 /* reserved 1 */ |
| 227 | #define TS2_I2C_LOG_ENTRY_MSB_RESERVED_2 0x0309 /* reserved 2 */ |
| 228 | #define TS2_I2C_LOG_ENTRY_MSB 0x030a /* side-effect */ |
| 229 | #define TS2_I2C_LOG_ENTRY_LSB 0x030b |
| 230 | |
| 231 | |
| 232 | /* page 0x04 */ |
| 233 | /* local enumeration structure */ |
| 234 | /* Enumeration registers (local) */ |
| 235 | #define TS2_I2C_ENUM_STRUCT_VER 0x0400 |
| 236 | #define TS2_I2C_ENUM_STRUCT_LEN 0x0401 |
| 237 | #define TS2_I2C_ENUM_PROTOCOL_MAP_VER 0x0402 |
| 238 | #define TS2_I2C_ENUM_MFGR_ID_HI 0x0403 |
| 239 | #define TS2_I2C_ENUM_MFGR_ID_LO 0x0404 |
| 240 | #define TS2_I2C_ENUM_PRODUCT_TYPE_HI 0x0405 |
| 241 | #define TS2_I2C_ENUM_PRODUCT_TYPE_LO 0x0406 |
| 242 | #define TS2_I2C_ENUM_SERNO_7 0x0407 |
| 243 | #define TS2_I2C_ENUM_SERNO_6 0x0408 |
| 244 | #define TS2_I2C_ENUM_SERNO_5 0x0409 |
| 245 | #define TS2_I2C_ENUM_SERNO_4 0x040A |
| 246 | #define TS2_I2C_ENUM_SERNO_3 0x040B |
| 247 | #define TS2_I2C_ENUM_SERNO_2 0x040C |
| 248 | #define TS2_I2C_ENUM_SERNO_1 0x040D |
| 249 | #define TS2_I2C_ENUM_SERNO_0 0x040E |
| 250 | #define TS2_I2C_ENUM_ASSY_REV 0x040F |
| 251 | #define TS2_I2C_ENUM_FW_VER_2 0x0410 |
| 252 | #define TS2_I2C_ENUM_FW_VER_1 0x0411 |
| 253 | #define TS2_I2C_ENUM_FW_VER_0 0x0412 |
| 254 | #define TS2_I2C_ENUM_VNODE_MIN_HI 0x0413 |
| 255 | #define TS2_I2C_ENUM_VNODE_MIN_LO 0x0414 |
| 256 | #define TS2_I2C_ENUM_VNODE_MAX_HI 0x0415 |
| 257 | #define TS2_I2C_ENUM_VNODE_MAX_LO 0x0416 |
| 258 | #define TS2_I2C_ENUM_INODE_MIN_HI 0x0417 |
| 259 | #define TS2_I2C_ENUM_INODE_MIN_LO 0x0418 |
| 260 | #define TS2_I2C_ENUM_INODE_MAX_HI 0x0419 |
| 261 | #define TS2_I2C_ENUM_INODE_MAX_LO 0x041A |
| 262 | #define TS2_I2C_ENUM_TNODE_MIN 0x041B |
| 263 | #define TS2_I2C_ENUM_TNODE_MAX 0x041C |
| 264 | #define TS2_I2C_ENUM_POWER_MAX 0x041D |
| 265 | |
| 266 | #define TS2_I2C_ENUM_ACCE_0 0x0428 |
| 267 | #define TS2_I2C_ENUM_ACCE_1 0x0429 |
| 268 | #define TS2_I2C_ENUM_ACCE_2 0x042A |
| 269 | #define TS2_I2C_ENUM_ACCE_3 0x042B |
| 270 | #define TS2_I2C_ENUM_ACCE_4 0x042C |
| 271 | #define TS2_I2C_ENUM_ACCE_5 0x042D |
| 272 | #define TS2_I2C_ENUM_ACCE_6 0x042E |
| 273 | #define TS2_I2C_ENUM_ACCE_7 0x042F |
| 274 | #define TS2_I2C_ENUM_ACCE_8 0x0430 |
| 275 | #define TS2_I2C_ENUM_ACCE_9 0x0431 |
| 276 | #define TS2_I2C_ENUM_ACCE_10 0x0432 |
| 277 | #define TS2_I2C_ENUM_ACCE_11 0x0433 |
| 278 | #define TS2_I2C_ENUM_ACCE_12 0x0434 |
| 279 | #define TS2_I2C_ENUM_ACCE_13 0x0435 |
| 280 | #define TS2_I2C_ENUM_ACCE_14 0x0436 |
| 281 | #define TS2_I2C_ENUM_ACCE_15 0x0437 |
| 282 | #define TS2_I2C_ENUM_MIN_PWM 0x0438 |
| 283 | |
| 284 | |
| 285 | /* page 0x05 */ |
| 286 | /* remote enumeration structure */ |
| 287 | #define TS2_I2C_ENUM_REMOTE_STRUCT_VER 0x0500 |
| 288 | #define TS2_I2C_ENUM_REMOTE_STRUCT_LEN 0x0501 |
| 289 | #define TS2_I2C_ENUM_REMOTE_PROTOCOL_MAP_VER 0x0502 |
| 290 | #define TS2_I2C_ENUM_REMOTE_MFGR_ID_HI 0x0503 |
| 291 | #define TS2_I2C_ENUM_REMOTE_MFGR_ID_LO 0x0504 |
| 292 | #define TS2_I2C_ENUM_REMOTE_MFGR_ID_HI_V1 0x0505 |
| 293 | #define TS2_I2C_ENUM_REMOTE_MFGR_ID_LO_V1 0x0506 |
| 294 | #define TS2_I2C_ENUM_REMOTE_PRODUCT_TYPE_HI 0x0505 |
| 295 | #define TS2_I2C_ENUM_REMOTE_PRODUCT_TYPE_LO 0x0506 |
| 296 | #define TS2_I2C_ENUM_REMOTE_PRODUCT_TYPE_HI_V1 0x0507 |
| 297 | #define TS2_I2C_ENUM_REMOTE_PRODUCT_TYPE_LO_V1 0x0508 |
| 298 | #define TS2_I2C_ENUM_REMOTE_SERNO_7 0x0507 |
| 299 | #define TS2_I2C_ENUM_REMOTE_SERNO_6 0x0508 |
| 300 | #define TS2_I2C_ENUM_REMOTE_SERNO_5 0x0509 |
| 301 | #define TS2_I2C_ENUM_REMOTE_SERNO_4 0x050A |
| 302 | #define TS2_I2C_ENUM_REMOTE_SERNO_3 0x050B |
| 303 | #define TS2_I2C_ENUM_REMOTE_SERNO_2 0x050C |
| 304 | #define TS2_I2C_ENUM_REMOTE_SERNO_1 0x050D |
| 305 | #define TS2_I2C_ENUM_REMOTE_SERNO_0 0x050E |
| 306 | #define TS2_I2C_ENUM_REMOTE_ASSY_REV 0x050F |
| 307 | #define TS2_I2C_ENUM_REMOTE_FW_VER_2 0x0510 |
| 308 | #define TS2_I2C_ENUM_REMOTE_FW_VER_1 0x0511 |
| 309 | #define TS2_I2C_ENUM_REMOTE_FW_VER_0 0x0512 |
| 310 | #define TS2_I2C_ENUM_REMOTE_VNODE_MIN_HI 0x0513 |
| 311 | #define TS2_I2C_ENUM_REMOTE_VNODE_MIN_LO 0x0514 |
| 312 | #define TS2_I2C_ENUM_REMOTE_VNODE_MAX_HI 0x0515 |
| 313 | #define TS2_I2C_ENUM_REMOTE_VNODE_MAX_LO 0x0516 |
| 314 | #define TS2_I2C_ENUM_REMOTE_INODE_MIN_HI 0x0517 |
| 315 | #define TS2_I2C_ENUM_REMOTE_INODE_MIN_LO 0x0518 |
| 316 | #define TS2_I2C_ENUM_REMOTE_INODE_MAX_HI 0x0519 |
| 317 | #define TS2_I2C_ENUM_REMOTE_INODE_MAX_LO 0x051A |
| 318 | #define TS2_I2C_ENUM_REMOTE_TNODE_MIN 0x051B |
| 319 | #define TS2_I2C_ENUM_REMOTE_TNODE_MAX 0x051C |
| 320 | #define TS2_I2C_ENUM_REMOTE_POWER_MAX 0x051D |
| 321 | |
| 322 | |
| 323 | |
| 324 | #define TS2_I2C_ENUM_REMOTE_ACCE_0 0x0528 |
| 325 | #define TS2_I2C_ENUM_REMOTE_ACCE_1 0x0529 |
| 326 | #define TS2_I2C_ENUM_REMOTE_ACCE_2 0x052A |
| 327 | #define TS2_I2C_ENUM_REMOTE_ACCE_3 0x052B |
| 328 | #define TS2_I2C_ENUM_REMOTE_ACCE_4 0x052C |
| 329 | #define TS2_I2C_ENUM_REMOTE_ACCE_5 0x052D |
| 330 | #define TS2_I2C_ENUM_REMOTE_ACCE_6 0x052E |
| 331 | #define TS2_I2C_ENUM_REMOTE_ACCE_7 0x052F |
| 332 | #define TS2_I2C_ENUM_REMOTE_ACCE_8 0x0530 |
| 333 | #define TS2_I2C_ENUM_REMOTE_ACCE_9 0x0531 |
| 334 | #define TS2_I2C_ENUM_REMOTE_ACCE_10 0x0532 |
| 335 | #define TS2_I2C_ENUM_REMOTE_ACCE_11 0x0533 |
| 336 | #define TS2_I2C_ENUM_REMOTE_ACCE_12 0x0534 |
| 337 | #define TS2_I2C_ENUM_REMOTE_ACCE_13 0x0535 |
| 338 | #define TS2_I2C_ENUM_REMOTE_ACCE_14 0x0536 |
| 339 | #define TS2_I2C_ENUM_REMOTE_ACCE_15 0x0537 |
| 340 | |
| 341 | |
| 342 | /* page 0x06 */ |
| 343 | /* reserved */ |
| 344 | |
| 345 | |
| 346 | /* page 0x07 */ |
| 347 | /* voltage, current, temperature, power (puck only), pwm (puck only) */ |
| 348 | #define TS2_I2C_ID 0x0700 |
| 349 | #define TS2_I2C_ID_AIRBOARD_0 0x2c |
| 350 | #define TS2_I2C_FLAGS_0 0x0701 |
| 351 | #define TS2_I2C_FLAGS_0_PUCK_PRIORITY (1<<0) |
| 352 | #define TS2_I2C_FLAGS_1 0x0702 |
| 353 | #define TS2_I2C_FLAGS_2 0x0703 |
| 354 | #define TS2_I2C_FLAGS_2_A2A_CONNECT 0x80 |
| 355 | #define TS2_I2C_FLAGS_2_A2A_ATTEMPT 0x40 |
| 356 | #define TS2_I2C_FLAGS_2_BATTERY_DETECT 0x20 |
| 357 | #define TS2_I2C_FLAGS_2_WIRED_CHARGE 0x10 |
| 358 | #define TS2_I2C_FLAGS_2_PUCK_CHARGE 0x08 |
| 359 | #define TS2_I2C_FLAGS_2_WIRED 0x04 |
| 360 | #define TS2_I2C_FLAGS_2_PUCK 0x02 |
| 361 | #define TS2_I2C_FLAGS_2_PUCK_DETECT 0x01 |
| 362 | #define TS2_I2C_V_LOCAL 0x0704 |
| 363 | #define TS2_I2C_I_LOCAL 0x0705 |
| 364 | #define TS2_I2C_T_LOCAL 0x0706 |
| 365 | #define TS2_I2C_P_LOCAL 0x0707 /* puck only */ |
| 366 | #define TS2_I2C_V_REMOTE 0x0708 |
| 367 | #define TS2_I2C_I_REMOTE 0x0709 |
| 368 | #define TS2_I2C_T_REMOTE 0x070a |
| 369 | #define TS2_I2C_P_REMOTE 0x070b /* puck only */ |
| 370 | #define TS2_I2C_PWM 0x070c /* puck only */ |
| 371 | #define TS2_I2C_PERIOD 0x070d /* puck only */ |
| 372 | |
| 373 | /* config */ |
| 374 | #define TS2_I2C_TX_POWER_V1 0x0740 |
| 375 | #define TS2_I2C_TX_POWER_V2 0x0741 |
| 376 | |
| 377 | /* puck only config */ |
| 378 | #define TS2_I2C_PWM_PERIOD 0x0780 |
| 379 | #define TS2_I2C_PWM_DUTY_ENUM 0x0781 |
| 380 | #define TS2_I2C_PWM_DUTY_MIN_RUN 0x0782 |
| 381 | #define TS2_I2C_PWM_DUTY_MIN_BOOST 0x0783 |
| 382 | #define TS2_I2C_PWM_DEADTIME 0x0784 |
| 383 | #define TS2_I2C_PWM_EFFICIENCY_OFFSET 0x0785 |
| 384 | #define TS2_I2C_PWM_EFFICIENCY_SCALE 0x0786 |
| 385 | |
| 386 | /* airboard only */ |
| 387 | #define TS2_I2C_V_OFFSET 0x07c0 |
| 388 | #define TS2_I2C_WAKEUP_PERIOD 0x07c1 |
| 389 | #define TS2_I2C_CURRENT_ADJ_FOR_V1_SLOPE 0x07c2 |
| 390 | #define TS2_I2C_CURRENT_ADJ_FOR_V1_OFFSET 0x07c3 |
| 391 | #define TS2_I2C_VOLTAGE_ADJ_FOR_V1_SLOPE 0x07c4 |
| 392 | #define TS2_I2C_VOLTAGE_ADJ_FOR_V1_OFFSET 0x07c5 |
| 393 | |
| 394 | /* misc registers */ |
| 395 | #define TS2_I2C_COMMAND 0x1000 |
| 396 | #define TS2_I2C_COMMAND_RESET_HOST 0x01 |
| 397 | #define TS2_I2C_COMMAND_CLEAR_BTN_SEQ_RESET_FLAG 0x02 |
| 398 | |
| 399 | #define TS2_I2C_COMMAND_COMM_CONNECT 0x10 |
| 400 | #define TS2_I2C_COMMAND_COMM_DISCONNECT 0x11 |
| 401 | #define TS2_I2C_COMMAND_REENUMERATE 0x12 |
| 402 | |
| 403 | #define TS2_I2C_COMMAND_FRAM_CHECKSUM_1400_READ 0x20 |
| 404 | #define TS2_I2C_COMMAND_FRAM_CHECKSUM_READ_1 0x21 |
| 405 | #define TS2_I2C_COMMAND_FRAM_CHECKSUM_READ_2 0x22 |
| 406 | |
| 407 | #define TS2_I2C_COMMAND_MEM_READ_BYTE 0x80 |
| 408 | #define TS2_I2C_COMMAND_MEM_READ_CHAWMP 0x81 |
| 409 | #define TS2_I2C_COMMAND_MEM_WRITE_BYTE 0x82 |
| 410 | #define TS2_I2C_COMMAND_MEM_WRITE_CHAWMP 0x83 |
| 411 | #define TS2_I2C_COMMAND_PMIC_READ 0x84 |
| 412 | #define TS2_I2C_COMMAND_PMIC_WRITE 0x85 |
| 413 | #define TS2_I2C_COMMAND_SP_READ 0x86 |
| 414 | #define TS2_I2C_COMMAND_SP_INDIRECT_READ 0x87 |
| 415 | #define TS2_I2C_COMMAND_ADDR_MSB 0x1001 |
| 416 | #define TS2_I2C_COMMAND_ADDR_LSB 0x1002 |
| 417 | #define TS2_I2C_COMMAND_DATA_MSB 0x1003 |
| 418 | #define TS2_I2C_COMMAND_DATA_LSB 0x1004 |
| 419 | |
| 420 | #define TS2_I2C_DEBUG_TRACE_DATA_RESERVED_1 0x101e /* reserved 1 */ |
| 421 | #define TS2_I2C_DEBUG_TRACE_DATA_RESERVED_2 0x101f /* reserved 2 */ |
| 422 | #define TS2_I2C_DEBUG_TRACE_DATA 0x1020 /* side-effect */ |
| 423 | |
| 424 | #define A6_REG_TS2_I2C_INT_MASK_0 0 |
| 425 | #define A6_REG_TS2_I2C_INT_MASK_1 1 |
| 426 | #define A6_REG_TS2_I2C_INT_MASK_2 2 |
| 427 | #define A6_REG_TS2_I2C_INT_MASK_3 3 |
| 428 | #define A6_REG_TS2_I2C_INT_STATUS_0 4 |
| 429 | #define A6_REG_TS2_I2C_INT_STATUS_1 5 |
| 430 | #define A6_REG_TS2_I2C_INT_STATUS_2 6 |
| 431 | #define A6_REG_TS2_I2C_INT_STATUS_3 7 |
| 432 | #define A6_REG_TS2_I2C_BAT_STATUS 8 |
| 433 | #define A6_REG_TS2_I2C_BAT_RARC 9 |
| 434 | #define A6_REG_TS2_I2C_BAT_RSRC 10 |
| 435 | #define A6_REG_TS2_I2C_BAT_AVG_CUR_LSB_MSB 11 |
| 436 | #define A6_REG_TS2_I2C_BAT_TEMP_LSB_MSB 12 |
| 437 | #define A6_REG_TS2_I2C_BAT_VOLT_LSB_MSB 13 |
| 438 | #define A6_REG_TS2_I2C_BAT_CUR_LSB_MSB 14 |
| 439 | #define A6_REG_TS2_I2C_BAT_COULOMB_LSB_MSB 15 |
| 440 | // #define A6_REG_TS2_I2C_BAT_AS 16 // two entries? TODO |
| 441 | #define A6_REG_TS2_I2C_BAT_FULL_LSB_MSB 17 |
| 442 | #define A6_REG_TS2_I2C_BAT_FULL40_LSB_MSB 18 |
| 443 | #define A6_REG_TS2_I2C_BAT_RSNSP 19 |
| 444 | #define A6_REG_TS2_I2C_BAT_ROMID_0 20 |
| 445 | #define A6_REG_TS2_I2C_BAT_COMMAND_STATUS 21 |
| 446 | #define A6_REG_TS2_I2C_BAT_TEMP_LOW_LSB_MSB 22 |
| 447 | #define A6_REG_TS2_I2C_BAT_TEMP_HIGH_LSB_MSB 23 |
| 448 | #define A6_REG_TS2_I2C_BAT_VOLT_LOW_LSB_MSB 24 |
| 449 | #define A6_REG_TS2_I2C_BAT_RARC_CRIT 25 |
| 450 | #define A6_REG_TS2_I2C_BAT_RARC_LOW_2 26 |
| 451 | #define A6_REG_TS2_I2C_BAT_RARC_LOW_1 27 |
| 452 | #define A6_REG_TS2_I2C_BAT_RAAC_MSB 28 |
| 453 | #define A6_REG_TS2_I2C_ID 29 |
| 454 | #define A6_REG_TS2_I2C_FLAGS_0 30 |
| 455 | #define A6_REG_TS2_I2C_FLAGS_2 31 |
| 456 | #define A6_REG_VERSION 32 |
| 457 | #define A6_REG_TS2_I2C_V_OFFSET 33 |
| 458 | #define A6_REG_TS2_I2C_WAKEUP_PERIOD 34 |
| 459 | #define A6_REG_TS2_I2C_COMMAND 35 |
| 460 | #define A6_REG_REMOTE_VERSION 36 |
| 461 | #define A6_REG_ACCESSORY_DATA_0 37 |
| 462 | #define A6_REG_ACCESSORY_DATA_1 38 |
| 463 | #define A6_REG_ACCESSORY_DATA_2 39 |
| 464 | #define A6_REG_ACCESSORY_DATA_3 40 |
| 465 | #define A6_REG_ACCESSORY_DATA_4 41 |
| 466 | #define A6_REG_ACCESSORY_DATA_5 42 |
| 467 | #define A6_REG_ACCESSORY_DATA_6 43 |
| 468 | #define A6_REG_ACCESSORY_DATA_7 44 |
| 469 | #define A6_REG_ACCESSORY_DATA_8 45 |
| 470 | #define A6_REG_ACCESSORY_DATA_9 46 |
| 471 | #define A6_REG_ACCESSORY_DATA_10 47 |
| 472 | #define A6_REG_ACCESSORY_DATA_11 48 |
| 473 | #define A6_REG_ACCESSORY_DATA_12 49 |
| 474 | #define A6_REG_REMOTE_ACCESSORY_DATA_0 50 |
| 475 | #define A6_REG_REMOTE_ACCESSORY_DATA_1 51 |
| 476 | #define A6_REG_REMOTE_ACCESSORY_DATA_2 52 |
| 477 | #define A6_REG_REMOTE_ACCESSORY_DATA_3 53 |
| 478 | #define A6_REG_REMOTE_ACCESSORY_DATA_4 54 |
| 479 | #define A6_REG_REMOTE_ACCESSORY_DATA_5 55 |
| 480 | #define A6_REG_REMOTE_ACCESSORY_DATA_6 56 |
| 481 | #define A6_REG_REMOTE_ACCESSORY_DATA_7 57 |
| 482 | #define A6_REG_REMOTE_ACCESSORY_DATA_8 58 |
| 483 | #define A6_REG_REMOTE_ACCESSORY_DATA_9 59 |
| 484 | #define A6_REG_REMOTE_ACCESSORY_DATA_10 60 |
| 485 | #define A6_REG_REMOTE_ACCESSORY_DATA_11 61 |
| 486 | #define A6_REG_REMOTE_ACCESSORY_DATA_12 62 |
| 487 | #define A6_REG_TS2_I2C_COMM_STATUS 63 |
| 488 | #define A6_REG_TS2_I2C_COMM_TXDATA_RXDATA 64 |
| 489 | #define A6_REG_TS2_I2C_BAT_SACR_LSB_MSB 65 |
| 490 | #define A6_REG_TS2_I2C_BAT_ASL 66 |
| 491 | // #define A6_REG_TS2_I2C_BAT_AS 67 // two entries? TODO |
| 492 | #define A6_REG_TS2_I2C_BAT_FAC_LSB_MSB 68 |
| 493 | #define A6_REG_MAX_POWER_AVAILABLE 69 |
| 494 | #define A6_REG_TS2_I2C_ENUM_REMOTE_STRUCT_VER 70 |
| 495 | #define A6_REG_ACCESSORY_DATA_13 71 |
| 496 | #define A6_REG_ACCESSORY_DATA_14 72 |
| 497 | #define A6_REG_ACCESSORY_DATA_15 73 |
| 498 | #define A6_REG_REMOTE_ACCESSORY_DATA_13 74 |
| 499 | #define A6_REG_REMOTE_ACCESSORY_DATA_14 75 |
| 500 | #define A6_REG_REMOTE_ACCESSORY_DATA_15 76 |
| 501 | #define A6_REG_TS2_I2C_ENUM_MIN_PWM 77 |
| 502 | #define A6_REG_ACCESSORY_DATA_COMBO 78 |
| 503 | #define A6_REG_REMOTE_ACCESSORY_DATA_COMBO 79 |
| 504 | #define A6_REG_TS2_I2C_COMMAND_ADDR_LSB_MSB 80 |
| 505 | #define A6_REG_TS2_I2C_COMMAND_DATA_LSB_MSB 81 |
| 506 | #define A6_REG_REMOTE_MFGRID_V1 82 |
| 507 | #define A6_REG_REMOTE_MFGRID_V2 83 |
| 508 | #define A6_REG_REMOTE_PRODUCTID_V1 84 |
| 509 | #define A6_REG_REMOTE_PRODUCTID_V2 85 |
| 510 | #define A6_REG_REMOTE_SERNO_V1 86 |
| 511 | #define A6_REG_REMOTE_SERNO_V2 87 |
| 512 | #define A6_REG_LOCAL_MFGRID 88 |
| 513 | #define A6_REG_LOCAL_PRODUCTID 89 |
| 514 | #define A6_REG_LOCAL_SERNO 90 |
| 515 | |
| 516 | |
| 517 | #define RSENSE_DEFAULT 20; |
| 518 | #define FORCE_WAKE_TIMER_EXPIRY (HZ/20) |
| 519 | |
| 520 | #define a6_wait_event_ex(wq, condition) \ |
| 521 | do { \ |
| 522 | if (condition) \ |
| 523 | break; \ |
| 524 | do { \ |
| 525 | DEFINE_WAIT(__wait); \ |
| 526 | \ |
| 527 | for (;;) { \ |
| 528 | prepare_to_wait_exclusive(&wq, &__wait, \ |
| 529 | TASK_UNINTERRUPTIBLE); \ |
| 530 | if (condition) \ |
| 531 | break; \ |
| 532 | schedule(); \ |
| 533 | } \ |
| 534 | finish_wait(&wq, &__wait); \ |
| 535 | } while (0); \ |
| 536 | } while (0) |
| 537 | |
| 538 | |
| 539 | enum { |
| 540 | DEVICE_BUSY_BIT = 0, |
| 541 | IS_OPENED, |
| 542 | IS_INITIALIZED_BIT, |
| 543 | BOOTLOAD_ACTIVE_BIT, |
| 544 | FORCE_WAKE_ACTIVE_BIT, |
| 545 | READ_ACTIVE_BIT, |
| 546 | WRITE_ACTIVE_BIT, |
| 547 | A2A_CONNECTED, |
| 548 | EXTRACT_INITIATED, |
| 549 | // capabilities |
| 550 | CAP_PERIODIC_WAKE, |
| 551 | #ifdef A6_PQ |
| 552 | STARTING_AID_TASK, |
| 553 | KILLING_AID_TASK, |
| 554 | IS_QUIESCED, |
| 555 | #endif |
| 556 | IS_SUSPENDED, |
| 557 | INT_PENDING, |
| 558 | SIZE_FLAGS |
| 559 | }; |
| 560 | |
| 561 | struct a6_device_state { |
| 562 | struct i2c_client *i2c_dev; |
| 563 | struct a6_platform_data *plat_data; |
| 564 | struct file_operations fops; |
| 565 | struct miscdevice mdev; |
| 566 | |
| 567 | struct mutex dev_mutex; |
| 568 | unsigned int timestamping; |
| 569 | |
| 570 | struct timer_list a6_force_wake_timer; |
| 571 | struct work_struct a6_force_wake_work; |
| 572 | struct mutex a6_force_wake_mutex; |
| 573 | |
| 574 | wait_queue_head_t dev_busyq; |
| 575 | struct work_struct a6_irq_work; |
| 576 | |
| 577 | int32_t cpufreq_hold_flag; |
| 578 | struct workqueue_struct* ka6d_workqueue; |
| 579 | struct workqueue_struct* ka6d_fw_workqueue; |
| 580 | |
| 581 | uint32_t cached_rsense_val: 16; |
| 582 | uint32_t busy_count: 8; |
| 583 | DECLARE_BITMAP(flags, SIZE_FLAGS); |
| 584 | |
| 585 | #ifdef A6_PQ |
| 586 | struct completion aq_enq_complete; |
| 587 | struct completion aid_exit_complete; |
| 588 | struct mutex aq_mutex; |
| 589 | struct list_head aq_head; |
| 590 | struct task_struct* ai_dispatch_task; |
| 591 | #ifdef A6_DEBUG |
| 592 | uint32_t dbgflg_kill_raid: 1; |
| 593 | |
| 594 | uint8_t debug_restart_aid; |
| 595 | uint8_t debug_flush_aiq; |
| 596 | uint8_t debug_unused_01; |
| 597 | uint8_t debug_unused_02; |
| 598 | #endif |
| 599 | #endif |
| 600 | |
| 601 | int cpufreq_hold; |
| 602 | |
| 603 | // pmem extract |
| 604 | struct file_operations pmem_fops; |
| 605 | struct miscdevice pmem_mdev; |
| 606 | char pmem_dev_name[16]; |
| 607 | |
| 608 | char *a2a_rd_buf, *a2a_wr_buf; |
| 609 | char *a2a_rp, *a2a_wp; |
| 610 | |
| 611 | enum chg_type otg_chg_type; |
| 612 | struct delayed_work charge_work; |
| 613 | struct delayed_work init_connected_ps_work; |
| 614 | int stop_heartbeat; |
| 615 | int last_percent; |
| 616 | |
| 617 | struct switch_dev *dock_switch; |
| 618 | }; |
| 619 | |
| 620 | struct a6_device_state *batt_state; |
| 621 | |
| 622 | #ifdef A6_PQ |
| 623 | int32_t a6_start_ai_dispatch_task(struct a6_device_state* state); |
| 624 | int32_t a6_stop_ai_dispatch_task(struct a6_device_state* state); |
| 625 | int32_t flush_a6_action_items(struct a6_device_state* state); |
| 626 | #endif |
| 627 | |
| 628 | static ssize_t a6_generic_show(struct device *dev, struct device_attribute *dev_attr, char *buf); |
| 629 | static ssize_t a6_generic_store(struct device *dev, struct device_attribute *dev_attr, const char *buf, |
| 630 | size_t count); |
| 631 | |
| 632 | typedef int32_t (*format_show_fn)(const struct a6_device_state* state, const uint8_t* val, |
| 633 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 634 | typedef int32_t (*format_store_fn)(const struct a6_device_state* state, const uint8_t* fmt_buffer, |
| 635 | uint8_t* val, uint32_t size_buffer); |
| 636 | |
| 637 | int32_t format_current(const struct a6_device_state* state, const uint8_t* val, |
| 638 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 639 | int32_t format_voltage(const struct a6_device_state* state, const uint8_t* val, |
| 640 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 641 | int32_t r_format_voltage(const struct a6_device_state* state, const uint8_t* fmt_buffer, |
| 642 | uint8_t* val, uint32_t size_buffer); |
| 643 | int32_t format_rawcoulomb(const struct a6_device_state* state, const uint8_t* val, |
| 644 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 645 | int32_t format_coulomb(const struct a6_device_state* state, const uint8_t* val, |
| 646 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 647 | int32_t format_age(const struct a6_device_state* state, const uint8_t* val, |
| 648 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 649 | int32_t format_fullx(const struct a6_device_state* state, const uint8_t* val, |
| 650 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 651 | int32_t format_temp(const struct a6_device_state* state, const uint8_t* val, |
| 652 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 653 | int32_t r_format_temp(const struct a6_device_state* state, const uint8_t* fmt_buffer, |
| 654 | uint8_t* val, uint32_t size_buffer); |
| 655 | int32_t format_status(const struct a6_device_state* state, const uint8_t* val, |
| 656 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 657 | int32_t format_rsense(const struct a6_device_state* state, const uint8_t* val, |
| 658 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 659 | int32_t format_charge_source_status(const struct a6_device_state* state, const uint8_t* val, |
| 660 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 661 | int32_t format_version(const struct a6_device_state* state, const uint8_t* val, |
| 662 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 663 | int32_t format_v_offset(const struct a6_device_state* state, const uint8_t* val, |
| 664 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 665 | int32_t format_command(const struct a6_device_state* state, const uint8_t* val, |
| 666 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 667 | int32_t format_accessory(const struct a6_device_state* state, const uint8_t* val, |
| 668 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 669 | int32_t format_comm_status(const struct a6_device_state* state, const uint8_t* val, |
| 670 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 671 | int32_t format_raw_unsigned(const struct a6_device_state* state, const uint8_t* val, |
| 672 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 673 | int32_t format_max_power_available(const struct a6_device_state* state, const uint8_t* val, |
| 674 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 675 | int32_t format_accessory_combo(const struct a6_device_state* state, const uint8_t* val, |
| 676 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 677 | int32_t format_u16_hex(const struct a6_device_state* state, const uint8_t* val, |
| 678 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 679 | int32_t format_serno_v1(const struct a6_device_state* state, const uint8_t* val, |
| 680 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 681 | int32_t format_serno_v2(const struct a6_device_state* state, const uint8_t* val, |
| 682 | uint8_t* fmt_buffer, uint32_t size_buffer); |
| 683 | |
| 684 | static ssize_t a6_diag_show(struct device *dev, struct device_attribute *dev_attr, char *buf); |
| 685 | static ssize_t a6_diag_store(struct device *dev, struct device_attribute *dev_attr, const char *buf, |
| 686 | size_t count); |
| 687 | static ssize_t a6_val_cksum_show(struct device *dev, struct device_attribute *attr, char *buf); |
| 688 | |
| 689 | static void a6_dock_update_state(struct a6_device_state *state); |
| 690 | |
| 691 | static void a6_update_connected_ps(void); |
| 692 | |
| 693 | void a6_force_wake_timer_callback(ulong data); |
| 694 | /* |
| 695 | Note: 16-bit accesses comprising an LSB, MSB register pair must be specified in LSB:MSB order |
| 696 | in the corresponding a6_register_desc struct. This is because an a6-fw constraint |
| 697 | restricts 16-bit value accesses to MSB-leading only. The a6_i2c_read_reg and the |
| 698 | a6_i2c_write_reg functions take the LSB:MSB definition in the a6_register_desc struct |
| 699 | and re-orders the i2c txn to read in MSB:LSB order. |
| 700 | */ |
| 701 | struct a6_register_desc { |
| 702 | #define id_size 20 |
| 703 | |
| 704 | const char* debug_name; |
| 705 | struct device_attribute dev_attr; |
| 706 | format_show_fn format; |
| 707 | format_store_fn r_format; |
| 708 | uint16_t id[id_size]; |
| 709 | uint32_t num_ids: 5; |
| 710 | uint32_t ro: 1; |
| 711 | } a6_register_desc_arr[] = { |
| 712 | /* interrupt control registers */ |
| 713 | [0] = { .debug_name = "TS2_I2C_INT_MASK_0", |
| 714 | {{.name = "int_mask0", .mode = S_IRUGO | S_IWUGO}, |
| 715 | .show = a6_generic_show, .store = a6_generic_store}, |
| 716 | .id = {TS2_I2C_INT_MASK_0}, .num_ids = 1, .ro = 0}, |
| 717 | [1] = { .debug_name = "TS2_I2C_INT_MASK_1", |
| 718 | {{.name = "int_mask1", .mode = S_IRUGO | S_IWUGO}, |
| 719 | .show = a6_generic_show, .store = a6_generic_store}, |
| 720 | .id = {TS2_I2C_INT_MASK_1}, .num_ids = 1, .ro = 0}, |
| 721 | [2] = { .debug_name = "TS2_I2C_INT_MASK_2", |
| 722 | {{.name = "int_mask2", .mode = S_IRUGO | S_IWUGO}, |
| 723 | .show = a6_generic_show, .store = a6_generic_store}, |
| 724 | .id = {TS2_I2C_INT_MASK_2}, .num_ids = 1, .ro = 0}, |
| 725 | [3] = { .debug_name = "TS2_I2C_INT_MASK_3", |
| 726 | {{.name = "int_mask3", .mode = S_IRUGO | S_IWUGO}, |
| 727 | .show = a6_generic_show, .store = a6_generic_store}, |
| 728 | .id = {TS2_I2C_INT_MASK_3}, .num_ids = 1, .ro = 0}, |
| 729 | [4] = { .debug_name = "TS2_I2C_INT_STATUS_0", |
| 730 | {{.name = "int_status0", .mode = S_IRUGO | S_IWUGO}, |
| 731 | .show = a6_generic_show, .store = a6_generic_store}, |
| 732 | .id = {TS2_I2C_INT_STATUS_0}, .num_ids = 1, .ro = 0}, |
| 733 | [5] = { .debug_name = "TS2_I2C_INT_STATUS_1", |
| 734 | {{.name = "int_status1", .mode = S_IRUGO | S_IWUGO}, |
| 735 | .show = a6_generic_show, .store = a6_generic_store}, |
| 736 | .id = {TS2_I2C_INT_STATUS_1}, .num_ids = 1, .ro = 0}, |
| 737 | [6] = { .debug_name = "TS2_I2C_INT_STATUS_2", |
| 738 | {{.name = "int_status2", .mode = S_IRUGO | S_IWUGO}, |
| 739 | .show = a6_generic_show, .store = a6_generic_store}, |
| 740 | .id = {TS2_I2C_INT_STATUS_2}, .num_ids = 1, .ro = 0}, |
| 741 | [7] = { .debug_name = "TS2_I2C_INT_STATUS_3", |
| 742 | {{.name = "int_status3", .mode = S_IRUGO | S_IWUGO}, |
| 743 | .show = a6_generic_show, .store = a6_generic_store}, |
| 744 | .id = {TS2_I2C_INT_STATUS_3}, .num_ids = 1, .ro = 0}, |
| 745 | |
| 746 | /* battery control registers */ |
| 747 | [8] = { .debug_name = "TS2_I2C_BAT_STATUS", |
| 748 | {{.name = "status", .mode = S_IRUGO}, |
| 749 | .show = a6_generic_show, .store = NULL}, |
| 750 | .format = format_status, |
| 751 | .id = {TS2_I2C_BAT_STATUS}, .num_ids = 1, .ro = 1}, |
| 752 | [9] = { .debug_name = "TS2_I2C_BAT_RARC", |
| 753 | {{.name = "getpercent", .mode = S_IRUGO}, |
| 754 | .show = a6_generic_show, .store = NULL}, |
| 755 | .id = {TS2_I2C_BAT_RARC}, .num_ids = 1, .ro = 1}, |
| 756 | [10] = { .debug_name = "TS2_I2C_BAT_RSRC", |
| 757 | {{.name = "rsrc", .mode = S_IRUGO}, |
| 758 | .show = a6_generic_show, .store = NULL}, |
| 759 | .id = {TS2_I2C_BAT_RSRC}, .num_ids = 1, .ro = 1}, |
| 760 | [11] = { .debug_name = "TS2_I2C_BAT_AVG_CUR_LSB_MSB", |
| 761 | {{.name = "getavgcurrent", .mode = S_IRUGO}, |
| 762 | .show = a6_generic_show, .store = NULL}, |
| 763 | .format = format_current, |
| 764 | .id = {TS2_I2C_BAT_AVG_CUR_LSB, TS2_I2C_BAT_AVG_CUR_MSB}, |
| 765 | .num_ids = 2, .ro = 1}, |
| 766 | [12] = { .debug_name = "TS2_I2C_BAT_TEMP_LSB_MSB", |
| 767 | {{.name = "gettemp", .mode = S_IRUGO}, |
| 768 | .show = a6_generic_show, .store = NULL}, |
| 769 | .format = format_temp, |
| 770 | .id = {TS2_I2C_BAT_TEMP_LSB, TS2_I2C_BAT_TEMP_MSB}, |
| 771 | .num_ids = 2, .ro = 1}, |
| 772 | [13] = { .debug_name = "TS2_I2C_BAT_VOLT_LSB_MSB", |
| 773 | {{.name = "getvoltage", .mode = S_IRUGO}, |
| 774 | .show = a6_generic_show, .store = NULL}, |
| 775 | .format = format_voltage, |
| 776 | .id = {TS2_I2C_BAT_VOLT_LSB, TS2_I2C_BAT_VOLT_MSB}, |
| 777 | .num_ids = 2, .ro = 1}, |
| 778 | [14] = { .debug_name = "TS2_I2C_BAT_CUR_LSB_MSB", |
| 779 | {{.name = "getcurrent", .mode = S_IRUGO}, |
| 780 | .show = a6_generic_show, .store = NULL}, |
| 781 | .format = format_current, |
| 782 | .id = {TS2_I2C_BAT_CUR_LSB, TS2_I2C_BAT_CUR_MSB}, |
| 783 | .num_ids = 2, .ro = 1}, |
| 784 | [15] = { .debug_name = "TS2_I2C_BAT_COULOMB_LSB_MSB", |
| 785 | {{.name = "getrawcoulomb", .mode = S_IRUGO}, |
| 786 | .show = a6_generic_show, .store = NULL}, |
| 787 | .format = format_rawcoulomb, |
| 788 | .id = {TS2_I2C_BAT_COULOMB_LSB, TS2_I2C_BAT_COULOMB_MSB}, |
| 789 | .num_ids = 2, .ro = 1}, |
| 790 | [16] = { .debug_name = "TS2_I2C_BAT_AS", |
| 791 | {{.name = "getage", .mode = S_IRUGO|S_IWUGO}, |
| 792 | .show = a6_generic_show, .store = a6_generic_store}, |
| 793 | .format = format_age, |
| 794 | .id = {TS2_I2C_BAT_AS}, .num_ids = 1, .ro = 0}, |
| 795 | [17] = { .debug_name = "TS2_I2C_BAT_FULL_LSB_MSB", |
| 796 | {{.name = "getfull", .mode = S_IRUGO}, |
| 797 | .show = a6_generic_show, .store = NULL}, |
| 798 | .format = format_fullx, |
| 799 | .id = {TS2_I2C_BAT_FULL_LSB, TS2_I2C_BAT_FULL_MSB}, |
| 800 | .num_ids = 2, .ro = 1}, |
| 801 | [18] = {.debug_name = "TS2_I2C_BAT_FULL40_LSB_MSB", |
| 802 | {{.name = "getfull40", .mode = S_IRUGO}, |
| 803 | .show = a6_generic_show, .store = NULL}, |
| 804 | .format = format_fullx, |
| 805 | .id = {TS2_I2C_BAT_FULL40_LSB, TS2_I2C_BAT_FULL40_MSB}, |
| 806 | .num_ids = 2, .ro = 1}, |
| 807 | [19] = {.debug_name = "TS2_I2C_BAT_RSNSP", |
| 808 | {{.name = "getrsense", .mode = S_IRUGO}, |
| 809 | .show = a6_generic_show, .store = NULL}, |
| 810 | .format = format_rsense, |
| 811 | .id = {TS2_I2C_BAT_RSNSP}, .num_ids = 1, .ro = 1}, |
| 812 | |
| 813 | [20] = {.debug_name = "TS2_I2C_BAT_ROMID_0", |
| 814 | {{.name = "romid_0", .mode = S_IRUGO}, |
| 815 | .show = a6_generic_show, .store = NULL}, |
| 816 | .id = {TS2_I2C_BAT_ROMID_0}, .num_ids = 1, .ro = 1}, |
| 817 | |
| 818 | [21] = {.debug_name = "TS2_I2C_BAT_COMMAND_STATUS", |
| 819 | {{.name = "command_status", .mode = S_IRUGO|S_IWUGO}, |
| 820 | .show = a6_generic_show, .store = a6_generic_store}, |
| 821 | .id = {TS2_I2C_BAT_COMMAND_STATUS}, .num_ids = 1, .ro = 0}, |
| 822 | |
| 823 | |
| 824 | [22] = {.debug_name = "TS2_I2C_BAT_TEMP_LOW_LSB_MSB", |
| 825 | {{.name = "temp_low", .mode = S_IRUGO|S_IWUGO}, |
| 826 | .show = a6_generic_show, .store = a6_generic_store}, |
| 827 | .format = format_temp, |
| 828 | .r_format = r_format_temp, |
| 829 | .id = {TS2_I2C_BAT_TEMP_LOW_LSB, TS2_I2C_BAT_TEMP_LOW_MSB}, |
| 830 | .num_ids = 2, .ro = 0}, |
| 831 | [23] = {.debug_name = "TS2_I2C_BAT_TEMP_HIGH_LSB_MSB", |
| 832 | {{.name = "temp_high", .mode = S_IRUGO|S_IWUGO}, |
| 833 | .show = a6_generic_show, .store = a6_generic_store}, |
| 834 | .format = format_temp, |
| 835 | .r_format = r_format_temp, |
| 836 | .id = {TS2_I2C_BAT_TEMP_HIGH_LSB, TS2_I2C_BAT_TEMP_HIGH_MSB}, |
| 837 | .num_ids = 2, .ro = 0}, |
| 838 | [24] = {.debug_name = "TS2_I2C_BAT_VOLT_LOW_LSB_MSB", |
| 839 | {{.name = "volt_low", .mode = S_IRUGO|S_IWUGO}, |
| 840 | .show = a6_generic_show, .store = a6_generic_store}, |
| 841 | .format = format_voltage, |
| 842 | .r_format = r_format_voltage, |
| 843 | .id = {TS2_I2C_BAT_VOLT_LOW_LSB, TS2_I2C_BAT_VOLT_LOW_MSB}, |
| 844 | .num_ids = 2, .ro = 0}, |
| 845 | [25] = {.debug_name = "TS2_I2C_BAT_RARC_CRIT", |
| 846 | {{.name = "rarc_crit", .mode = S_IRUGO|S_IWUGO}, |
| 847 | .show = a6_generic_show, .store = a6_generic_store}, |
| 848 | .id = {TS2_I2C_BAT_RARC_CRIT}, .num_ids = 1, .ro = 0}, |
| 849 | [26] = {.debug_name = "TS2_I2C_BAT_RARC_LOW_2", |
| 850 | {{.name = "rarc_low_2", .mode = S_IRUGO|S_IWUGO}, |
| 851 | .show = a6_generic_show, .store = a6_generic_store}, |
| 852 | .id = {TS2_I2C_BAT_RARC_LOW_2}, .num_ids = 1, .ro = 0}, |
| 853 | [27] = {.debug_name = "TS2_I2C_BAT_RARC_LOW_1", |
| 854 | {{.name = "rarc_low_1", .mode = S_IRUGO|S_IWUGO}, |
| 855 | .show = a6_generic_show, .store = a6_generic_store}, |
| 856 | .id = {TS2_I2C_BAT_RARC_LOW_1}, .num_ids = 1, .ro = 0}, |
| 857 | [28] = {.debug_name = "TS2_I2C_BAT_RAAC_MSB", |
| 858 | {{.name = "getcoulomb", .mode = S_IRUGO|S_IWUGO}, |
| 859 | .show = a6_generic_show, .store = a6_generic_store}, |
| 860 | .format = format_coulomb, |
| 861 | .id = {TS2_I2C_BAT_RAAC_LSB, TS2_I2C_BAT_RAAC_MSB}, |
| 862 | .num_ids = 2, .ro = 0}, |
| 863 | |
| 864 | /* puck registers */ |
| 865 | [29] = {.debug_name = "TS2_I2C_ID", |
| 866 | {{.name = "id", .mode = S_IRUGO}, |
| 867 | .show = a6_generic_show, .store = NULL}, |
| 868 | .id = {TS2_I2C_ID}, .num_ids = 1, .ro = 1}, |
| 869 | [30] = {.debug_name = "TS2_I2C_FLAGS_0", |
| 870 | {{.name = "puck_priority", .mode = S_IRUGO|S_IWUGO}, |
| 871 | .show = a6_generic_show, .store = a6_generic_store}, |
| 872 | .id = {TS2_I2C_FLAGS_0}, .num_ids = 1, .ro = 0}, |
| 873 | [31] = {.debug_name = "TS2_I2C_FLAGS_2", |
| 874 | {{.name = "charger", .mode = S_IRUGO}, |
| 875 | .show = a6_generic_show, .store = NULL}, |
| 876 | .format = format_charge_source_status, |
| 877 | .id = {TS2_I2C_FLAGS_2}, .num_ids = 1, .ro = 1}, |
| 878 | |
| 879 | /* enumeration registers */ |
| 880 | [32] = {.debug_name = "VERSION", |
| 881 | {{.name = "getversion", .mode = S_IRUGO}, |
| 882 | .show = a6_generic_show, .store = NULL}, |
| 883 | .format = format_version, |
| 884 | .id = { TS2_I2C_ENUM_MFGR_ID_LO, TS2_I2C_ENUM_MFGR_ID_HI, |
| 885 | TS2_I2C_ENUM_PRODUCT_TYPE_LO, TS2_I2C_ENUM_PRODUCT_TYPE_HI, |
| 886 | TS2_I2C_ENUM_SERNO_0, TS2_I2C_ENUM_SERNO_1, |
| 887 | TS2_I2C_ENUM_SERNO_2, TS2_I2C_ENUM_SERNO_3, |
| 888 | TS2_I2C_ENUM_SERNO_4, TS2_I2C_ENUM_SERNO_5, |
| 889 | TS2_I2C_ENUM_SERNO_6, TS2_I2C_ENUM_SERNO_7, |
| 890 | TS2_I2C_ENUM_ASSY_REV, TS2_I2C_ENUM_FW_VER_0, |
| 891 | TS2_I2C_ENUM_FW_VER_1, TS2_I2C_ENUM_FW_VER_2}, |
| 892 | .num_ids = 16, .ro = 1}, |
| 893 | |
| 894 | /* puck registers */ |
| 895 | [33] = {.debug_name = "TS2_I2C_V_OFFSET", |
| 896 | {{.name = "v_offset", .mode = S_IRUGO|S_IWUGO}, |
| 897 | .show = a6_generic_show, .store = a6_generic_store}, |
| 898 | .format = format_v_offset, |
| 899 | .id = {TS2_I2C_V_OFFSET}, .num_ids = 1, .ro = 0}, |
| 900 | |
| 901 | /* self-wake registers */ |
| 902 | [34] = {.debug_name = "TS2_I2C_WAKEUP_PERIOD", |
| 903 | {{.name = "periodic_wake_bit_params", .mode = S_IRUGO|S_IWUGO}, |
| 904 | .show = a6_generic_show, .store = a6_generic_store}, |
| 905 | .id = {TS2_I2C_WAKEUP_PERIOD}, .num_ids = 1, .ro = 0}, |
| 906 | |
| 907 | /* command registers */ |
| 908 | [35] = {.debug_name = "TS2_I2C_COMMAND", |
| 909 | {{.name = "command", .mode = S_IWUGO}, |
| 910 | .show = NULL, .store = a6_generic_store}, |
| 911 | .id = {TS2_I2C_COMMAND}, .num_ids = 1, .ro = 0}, |
| 912 | |
| 913 | /* remote enumeration registers */ |
| 914 | [36] = {.debug_name = "REMOTE_VERSION", |
| 915 | {{.name = "getremoteversion", .mode = S_IRUGO}, |
| 916 | .show = a6_generic_show, .store = NULL}, |
| 917 | .format = format_version, |
| 918 | .id = { TS2_I2C_ENUM_REMOTE_MFGR_ID_LO, TS2_I2C_ENUM_REMOTE_MFGR_ID_HI, |
| 919 | TS2_I2C_ENUM_REMOTE_PRODUCT_TYPE_LO, TS2_I2C_ENUM_REMOTE_PRODUCT_TYPE_HI, |
| 920 | TS2_I2C_ENUM_REMOTE_SERNO_0, TS2_I2C_ENUM_REMOTE_SERNO_1, |
| 921 | TS2_I2C_ENUM_REMOTE_SERNO_2, TS2_I2C_ENUM_REMOTE_SERNO_3, |
| 922 | TS2_I2C_ENUM_REMOTE_SERNO_4, TS2_I2C_ENUM_REMOTE_SERNO_5, |
| 923 | TS2_I2C_ENUM_REMOTE_SERNO_6, TS2_I2C_ENUM_REMOTE_SERNO_7, |
| 924 | TS2_I2C_ENUM_REMOTE_ASSY_REV, TS2_I2C_ENUM_REMOTE_FW_VER_0, |
| 925 | TS2_I2C_ENUM_REMOTE_FW_VER_1, TS2_I2C_ENUM_REMOTE_FW_VER_2}, |
| 926 | .num_ids = 16, .ro = 1}, |
| 927 | |
| 928 | /* accessory data registers */ |
| 929 | [37] = {.debug_name = "ACCESSORY_DATA_0", |
| 930 | {{.name = "acc_data_0", .mode = S_IRUGO|S_IWUGO}, |
| 931 | .show = a6_generic_show, .store = a6_generic_store}, |
| 932 | .format = format_accessory, |
| 933 | .id = { TS2_I2C_ENUM_ACCE_0}, .num_ids = 1, .ro = 0}, |
| 934 | |
| 935 | [38] = {.debug_name = "ACCESSORY_DATA_1", |
| 936 | {{.name = "acc_data_1", .mode = S_IRUGO|S_IWUGO}, |
| 937 | .show = a6_generic_show, .store = a6_generic_store}, |
| 938 | .format = format_accessory, |
| 939 | .id = { TS2_I2C_ENUM_ACCE_1}, .num_ids = 1, .ro = 0}, |
| 940 | |
| 941 | [39] = {.debug_name = "ACCESSORY_DATA_2", |
| 942 | {{.name = "acc_data_2", .mode = S_IRUGO|S_IWUGO}, |
| 943 | .show = a6_generic_show, .store = a6_generic_store}, |
| 944 | .format = format_accessory, |
| 945 | .id = { TS2_I2C_ENUM_ACCE_2}, .num_ids = 1, .ro = 0}, |
| 946 | |
| 947 | [40] = {.debug_name = "ACCESSORY_DATA_3", |
| 948 | {{.name = "acc_data_3", .mode = S_IRUGO|S_IWUGO}, |
| 949 | .show = a6_generic_show, .store = a6_generic_store}, |
| 950 | .format = format_accessory, |
| 951 | .id = { TS2_I2C_ENUM_ACCE_3}, .num_ids = 1, .ro = 0}, |
| 952 | |
| 953 | [41] = {.debug_name = "ACCESSORY_DATA_4", |
| 954 | {{.name = "acc_data_4", .mode = S_IRUGO|S_IWUGO}, |
| 955 | .show = a6_generic_show, .store = a6_generic_store}, |
| 956 | .format = format_accessory, |
| 957 | .id = { TS2_I2C_ENUM_ACCE_4}, .num_ids = 1, .ro = 0}, |
| 958 | |
| 959 | [42] = {.debug_name = "ACCESSORY_DATA_5", |
| 960 | {{.name = "acc_data_5", .mode = S_IRUGO|S_IWUGO}, |
| 961 | .show = a6_generic_show, .store = a6_generic_store}, |
| 962 | .format = format_accessory, |
| 963 | .id = { TS2_I2C_ENUM_ACCE_5}, .num_ids = 1, .ro = 0}, |
| 964 | |
| 965 | [43] = {.debug_name = "ACCESSORY_DATA_6", |
| 966 | {{.name = "acc_data_6", .mode = S_IRUGO|S_IWUGO}, |
| 967 | .show = a6_generic_show, .store = a6_generic_store}, |
| 968 | .format = format_accessory, |
| 969 | .id = { TS2_I2C_ENUM_ACCE_6}, .num_ids = 1, .ro = 0}, |
| 970 | |
| 971 | [44] = {.debug_name = "ACCESSORY_DATA_7", |
| 972 | {{.name = "acc_data_7", .mode = S_IRUGO|S_IWUGO}, |
| 973 | .show = a6_generic_show, .store = a6_generic_store}, |
| 974 | .format = format_accessory, |
| 975 | .id = { TS2_I2C_ENUM_ACCE_7}, .num_ids = 1, .ro = 0}, |
| 976 | |
| 977 | [45] = {.debug_name = "ACCESSORY_DATA_8", |
| 978 | {{.name = "acc_data_8", .mode = S_IRUGO|S_IWUGO}, |
| 979 | .show = a6_generic_show, .store = a6_generic_store}, |
| 980 | .format = format_accessory, |
| 981 | .id = { TS2_I2C_ENUM_ACCE_8}, .num_ids = 1, .ro = 0}, |
| 982 | |
| 983 | [46] = {.debug_name = "ACCESSORY_DATA_9", |
| 984 | {{.name = "acc_data_9", .mode = S_IRUGO|S_IWUGO}, |
| 985 | .show = a6_generic_show, .store = a6_generic_store}, |
| 986 | .format = format_accessory, |
| 987 | .id = { TS2_I2C_ENUM_ACCE_9}, .num_ids = 1, .ro = 0}, |
| 988 | |
| 989 | [47] = {.debug_name = "ACCESSORY_DATA_10", |
| 990 | {{.name = "acc_data_10", .mode = S_IRUGO|S_IWUGO}, |
| 991 | .show = a6_generic_show, .store = a6_generic_store}, |
| 992 | .format = format_accessory, |
| 993 | .id = { TS2_I2C_ENUM_ACCE_10}, .num_ids = 1, .ro = 0}, |
| 994 | |
| 995 | [48] = {.debug_name = "ACCESSORY_DATA_11", |
| 996 | {{.name = "acc_data_11", .mode = S_IRUGO|S_IWUGO}, |
| 997 | .show = a6_generic_show, .store = a6_generic_store}, |
| 998 | .format = format_accessory, |
| 999 | .id = { TS2_I2C_ENUM_ACCE_11}, .num_ids = 1, .ro = 0}, |
| 1000 | |
| 1001 | [49] = {.debug_name = "ACCESSORY_DATA_12", |
| 1002 | {{.name = "acc_data_12", .mode = S_IRUGO|S_IWUGO}, |
| 1003 | .show = a6_generic_show, .store = a6_generic_store}, |
| 1004 | .format = format_accessory, |
| 1005 | .id = { TS2_I2C_ENUM_ACCE_12}, .num_ids = 1, .ro = 0}, |
| 1006 | |
| 1007 | /* remote accessory data registers */ |
| 1008 | [50] = {.debug_name = "REMOTE_ACCESSORY_DATA_0", |
| 1009 | {{.name = "remote_acc_data_0", .mode = S_IRUGO}, |
| 1010 | .show = a6_generic_show, .store = NULL}, |
| 1011 | .format = format_accessory, |
| 1012 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_0}, .num_ids = 1, .ro = 1}, |
| 1013 | |
| 1014 | [51] = {.debug_name = "REMOTE_ACCESSORY_DATA_1", |
| 1015 | {{.name = "remote_acc_data_1", .mode = S_IRUGO}, |
| 1016 | .show = a6_generic_show, .store = NULL}, |
| 1017 | .format = format_accessory, |
| 1018 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_1}, .num_ids = 1, .ro = 1}, |
| 1019 | |
| 1020 | [52] = {.debug_name = "REMOTE_ACCESSORY_DATA_2", |
| 1021 | {{.name = "remote_acc_data_2", .mode = S_IRUGO}, |
| 1022 | .show = a6_generic_show, .store = NULL}, |
| 1023 | .format = format_accessory, |
| 1024 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_2}, .num_ids = 1, .ro = 1}, |
| 1025 | |
| 1026 | [53] = {.debug_name = "REMOTE_ACCESSORY_DATA_3", |
| 1027 | {{.name = "remote_acc_data_3", .mode = S_IRUGO}, |
| 1028 | .show = a6_generic_show, .store = NULL}, |
| 1029 | .format = format_accessory, |
| 1030 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_3}, .num_ids = 1, .ro = 1}, |
| 1031 | |
| 1032 | [54] = {.debug_name = "REMOTE_ACCESSORY_DATA_4", |
| 1033 | {{.name = "remote_acc_data_4", .mode = S_IRUGO}, |
| 1034 | .show = a6_generic_show, .store = NULL}, |
| 1035 | .format = format_accessory, |
| 1036 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_4}, .num_ids = 1, .ro = 1}, |
| 1037 | |
| 1038 | [55] = {.debug_name = "REMOTE_ACCESSORY_DATA_5", |
| 1039 | {{.name = "remote_acc_data_5", .mode = S_IRUGO}, |
| 1040 | .show = a6_generic_show, .store = NULL}, |
| 1041 | .format = format_accessory, |
| 1042 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_5}, .num_ids = 1, .ro = 1}, |
| 1043 | |
| 1044 | [56] = {.debug_name = "REMOTE_ACCESSORY_DATA_6", |
| 1045 | {{.name = "remote_acc_data_6", .mode = S_IRUGO}, |
| 1046 | .show = a6_generic_show, .store = NULL}, |
| 1047 | .format = format_accessory, |
| 1048 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_6}, .num_ids = 1, .ro = 1}, |
| 1049 | |
| 1050 | [57] = {.debug_name = "REMOTE_ACCESSORY_DATA_7", |
| 1051 | {{.name = "remote_acc_data_7", .mode = S_IRUGO}, |
| 1052 | .show = a6_generic_show, .store = NULL}, |
| 1053 | .format = format_accessory, |
| 1054 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_7}, .num_ids = 1, .ro = 1}, |
| 1055 | |
| 1056 | [58] = {.debug_name = "REMOTE_ACCESSORY_DATA_8", |
| 1057 | {{.name = "remote_acc_data_8", .mode = S_IRUGO}, |
| 1058 | .show = a6_generic_show, .store = NULL}, |
| 1059 | .format = format_accessory, |
| 1060 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_8}, .num_ids = 1, .ro = 1}, |
| 1061 | |
| 1062 | [59] = {.debug_name = "REMOTE_ACCESSORY_DATA_9", |
| 1063 | {{.name = "remote_acc_data_9", .mode = S_IRUGO}, |
| 1064 | .show = a6_generic_show, .store = NULL}, |
| 1065 | .format = format_accessory, |
| 1066 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_9}, .num_ids = 1, .ro = 1}, |
| 1067 | |
| 1068 | [60] = {.debug_name = "REMOTE_ACCESSORY_DATA_10", |
| 1069 | {{.name = "remote_acc_data_10", .mode = S_IRUGO}, |
| 1070 | .show = a6_generic_show, .store = NULL}, |
| 1071 | .format = format_accessory, |
| 1072 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_10}, .num_ids = 1, .ro = 1}, |
| 1073 | |
| 1074 | [61] = {.debug_name = "REMOTE_ACCESSORY_DATA_11", |
| 1075 | {{.name = "remote_acc_data_11", .mode = S_IRUGO}, |
| 1076 | .show = a6_generic_show, .store = NULL}, |
| 1077 | .format = format_accessory, |
| 1078 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_11}, .num_ids = 1, .ro = 1}, |
| 1079 | |
| 1080 | [62] = {.debug_name = "REMOTE_ACCESSORY_DATA_12", |
| 1081 | {{.name = "remote_acc_data_12", .mode = S_IRUGO}, |
| 1082 | .show = a6_generic_show, .store = NULL}, |
| 1083 | .format = format_accessory, |
| 1084 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_12}, .num_ids = 1, .ro = 1}, |
| 1085 | |
| 1086 | [63] = {.debug_name = "TS2_I2C_COMM_STATUS", |
| 1087 | {{.name = "get_comm_status", .mode = S_IRUGO}, |
| 1088 | .show = a6_generic_show, .store = NULL}, |
| 1089 | .format = format_comm_status, |
| 1090 | .id = {TS2_I2C_COMM_STATUS}, .num_ids = 1, .ro = 1}, |
| 1091 | |
| 1092 | [64] = {.debug_name = "TS2_I2C_COMM_TXDATA_RXDATA", |
| 1093 | {{.name = "comm_txdata_rx_data", .mode = S_IRUGO|S_IWUGO}, |
| 1094 | .show = a6_generic_show, .store = a6_generic_store}, |
| 1095 | .format = format_comm_status, |
| 1096 | .id = {TS2_I2C_COMM_TXDATA_RXDATA}, .num_ids = 1, .ro = 0}, |
| 1097 | |
| 1098 | [65] = { .debug_name = "TS2_I2C_BAT_SACR_LSB_MSB", |
| 1099 | {{.name = "getsacr", .mode = S_IRUGO}, |
| 1100 | .show = a6_generic_show, .store = NULL}, |
| 1101 | .format = format_rawcoulomb, |
| 1102 | .id = {TS2_I2C_BAT_SACR_LSB, TS2_I2C_BAT_SACR_MSB}, |
| 1103 | .num_ids = 2, .ro = 0}, |
| 1104 | |
| 1105 | [66] = { .debug_name = "TS2_I2C_BAT_ASL", |
| 1106 | {{.name = "getasl", .mode = S_IRUGO}, |
| 1107 | .show = a6_generic_show, .store = NULL}, |
| 1108 | .format = format_raw_unsigned, |
| 1109 | .id = {TS2_I2C_BAT_ASL}, .num_ids = 1, .ro = 0}, |
| 1110 | |
| 1111 | [67] = { .debug_name = "TS2_I2C_BAT_AS", |
| 1112 | {{.name = "getrawas", .mode = S_IRUGO}, |
| 1113 | .show = a6_generic_show, .store = NULL}, |
| 1114 | .format = format_raw_unsigned, |
| 1115 | .id = {TS2_I2C_BAT_AS}, .num_ids = 1, .ro = 0}, |
| 1116 | |
| 1117 | [68] = { .debug_name = "TS2_I2C_BAT_FAC_LSB_MSB", |
| 1118 | {{.name = "getfac", .mode = S_IRUGO}, |
| 1119 | .show = a6_generic_show, .store = NULL}, |
| 1120 | .format = format_rawcoulomb, |
| 1121 | .id = {TS2_I2C_BAT_FAC_LSB, TS2_I2C_BAT_FAC_MSB}, |
| 1122 | .num_ids = 2, .ro = 0}, |
| 1123 | |
| 1124 | [69] = {.debug_name = "MAX_POWER_AVAILABLE", |
| 1125 | {{.name = "getmaxpoweravail", .mode = S_IRUGO}, |
| 1126 | .show = a6_generic_show, .store = NULL}, |
| 1127 | .format = format_max_power_available, |
| 1128 | .id = { TS2_I2C_ENUM_REMOTE_VNODE_MAX_LO, TS2_I2C_ENUM_REMOTE_VNODE_MAX_HI, |
| 1129 | TS2_I2C_ENUM_REMOTE_INODE_MAX_LO, TS2_I2C_ENUM_REMOTE_INODE_MAX_HI, |
| 1130 | TS2_I2C_ENUM_REMOTE_POWER_MAX}, |
| 1131 | .num_ids = 5, .ro = 1}, |
| 1132 | |
| 1133 | [70] = {.debug_name = "TS2_I2C_ENUM_REMOTE_STRUCT_VER", |
| 1134 | {{.name = "remote_struct_ver", .mode = S_IRUGO}, |
| 1135 | .show = a6_generic_show, .store = NULL}, |
| 1136 | .id = {TS2_I2C_ENUM_REMOTE_STRUCT_VER}, .num_ids = 1, .ro = 1}, |
| 1137 | |
| 1138 | [71] = {.debug_name = "ACCESSORY_DATA_13", |
| 1139 | {{.name = "acc_data_13", .mode = S_IRUGO|S_IWUGO}, |
| 1140 | .show = a6_generic_show, .store = a6_generic_store}, |
| 1141 | .format = format_accessory, |
| 1142 | .id = { TS2_I2C_ENUM_ACCE_13}, .num_ids = 1, .ro = 0}, |
| 1143 | |
| 1144 | [72] = {.debug_name = "ACCESSORY_DATA_14", |
| 1145 | {{.name = "acc_data_14", .mode = S_IRUGO|S_IWUGO}, |
| 1146 | .show = a6_generic_show, .store = a6_generic_store}, |
| 1147 | .format = format_accessory, |
| 1148 | .id = { TS2_I2C_ENUM_ACCE_14}, .num_ids = 1, .ro = 0}, |
| 1149 | |
| 1150 | [73] = {.debug_name = "ACCESSORY_DATA_15", |
| 1151 | {{.name = "acc_data_15", .mode = S_IRUGO|S_IWUGO}, |
| 1152 | .show = a6_generic_show, .store = a6_generic_store}, |
| 1153 | .format = format_accessory, |
| 1154 | .id = { TS2_I2C_ENUM_ACCE_15}, .num_ids = 1, .ro = 0}, |
| 1155 | |
| 1156 | [74] = {.debug_name = "REMOTE_ACCESSORY_DATA_13", |
| 1157 | {{.name = "remote_acc_data_13", .mode = S_IRUGO}, |
| 1158 | .show = a6_generic_show, .store = NULL}, |
| 1159 | .format = format_accessory, |
| 1160 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_13}, .num_ids = 1, .ro = 1}, |
| 1161 | |
| 1162 | [75] = {.debug_name = "REMOTE_ACCESSORY_DATA_14", |
| 1163 | {{.name = "remote_acc_data_14", .mode = S_IRUGO}, |
| 1164 | .show = a6_generic_show, .store = NULL}, |
| 1165 | .format = format_accessory, |
| 1166 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_14}, .num_ids = 1, .ro = 1}, |
| 1167 | |
| 1168 | [76] = {.debug_name = "REMOTE_ACCESSORY_DATA_15", |
| 1169 | {{.name = "remote_acc_data_15", .mode = S_IRUGO}, |
| 1170 | .show = a6_generic_show, .store = NULL}, |
| 1171 | .format = format_accessory, |
| 1172 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_15}, .num_ids = 1, .ro = 1}, |
| 1173 | |
| 1174 | [77] = {.debug_name = "TS2_I2C_ENUM_MIN_PWM", |
| 1175 | {{.name = "min_pwm", .mode = S_IRUGO|S_IWUGO}, |
| 1176 | .show = a6_generic_show, .store = a6_generic_store}, |
| 1177 | .id = { TS2_I2C_ENUM_MIN_PWM}, .num_ids = 1, .ro = 0}, |
| 1178 | |
| 1179 | [78] = {.debug_name = "ACCESSORY_DATA_COMBO", |
| 1180 | {{.name = "acc_data_combo", .mode = S_IRUGO|S_IWUGO}, |
| 1181 | .show = a6_generic_show, .store = a6_generic_store}, |
| 1182 | .format = format_accessory_combo, |
| 1183 | .id = { TS2_I2C_ENUM_ACCE_0, TS2_I2C_ENUM_ACCE_1, TS2_I2C_ENUM_ACCE_2, |
| 1184 | TS2_I2C_ENUM_ACCE_3, TS2_I2C_ENUM_ACCE_4, TS2_I2C_ENUM_ACCE_5, |
| 1185 | TS2_I2C_ENUM_ACCE_6, TS2_I2C_ENUM_ACCE_7, TS2_I2C_ENUM_ACCE_8, |
| 1186 | TS2_I2C_ENUM_ACCE_9, TS2_I2C_ENUM_ACCE_10, TS2_I2C_ENUM_ACCE_11, |
| 1187 | TS2_I2C_ENUM_ACCE_12, TS2_I2C_ENUM_ACCE_13, TS2_I2C_ENUM_ACCE_14, |
| 1188 | TS2_I2C_ENUM_ACCE_15}, |
| 1189 | .num_ids = 16, .ro = 0}, |
| 1190 | |
| 1191 | [79] = {.debug_name = "REMOTE_ACCESSORY_DATA_COMBO", |
| 1192 | {{.name = "remote_acc_data_combo", .mode = S_IRUGO}, |
| 1193 | .show = a6_generic_show, .store = NULL}, |
| 1194 | .format = format_accessory_combo, |
| 1195 | .id = { TS2_I2C_ENUM_REMOTE_ACCE_0, TS2_I2C_ENUM_REMOTE_ACCE_1, |
| 1196 | TS2_I2C_ENUM_REMOTE_ACCE_2, TS2_I2C_ENUM_REMOTE_ACCE_3, |
| 1197 | TS2_I2C_ENUM_REMOTE_ACCE_4, TS2_I2C_ENUM_REMOTE_ACCE_5, |
| 1198 | TS2_I2C_ENUM_REMOTE_ACCE_6, TS2_I2C_ENUM_REMOTE_ACCE_7, |
| 1199 | TS2_I2C_ENUM_REMOTE_ACCE_8, TS2_I2C_ENUM_REMOTE_ACCE_9, |
| 1200 | TS2_I2C_ENUM_REMOTE_ACCE_10, TS2_I2C_ENUM_REMOTE_ACCE_11, |
| 1201 | TS2_I2C_ENUM_REMOTE_ACCE_12, TS2_I2C_ENUM_REMOTE_ACCE_13, |
| 1202 | TS2_I2C_ENUM_REMOTE_ACCE_14, TS2_I2C_ENUM_REMOTE_ACCE_15}, |
| 1203 | .num_ids = 16, .ro = 1}, |
| 1204 | |
| 1205 | [80] = {.debug_name = "TS2_I2C_COMMAND_ADDR_LSB_MSB", |
| 1206 | {{.name = "command_addr", .mode = S_IRUGO|S_IWUGO}, |
| 1207 | .show = a6_generic_show, .store = a6_generic_store}, |
| 1208 | .id = {TS2_I2C_COMMAND_ADDR_LSB, TS2_I2C_COMMAND_ADDR_MSB}, |
| 1209 | .format = format_u16_hex, |
| 1210 | .num_ids = 2, .ro = 0}, |
| 1211 | [81] = {.debug_name = "TS2_I2C_COMMAND_DATA_LSB_MSB", |
| 1212 | {{.name = "command_data", .mode = S_IRUGO|S_IWUGO}, |
| 1213 | .show = a6_generic_show, .store = a6_generic_store}, |
| 1214 | .id = {TS2_I2C_COMMAND_DATA_LSB, TS2_I2C_COMMAND_DATA_MSB}, |
| 1215 | .format = format_u16_hex, |
| 1216 | .num_ids = 2, .ro = 0}, |
| 1217 | |
| 1218 | [82] = {.debug_name = "REMOTE_MFGRID_V1", |
| 1219 | {{.name = "remote_mfgrid_v1", .mode = S_IRUGO}, |
| 1220 | .show = a6_generic_show, .store = NULL}, |
| 1221 | .format = format_u16_hex, |
| 1222 | .id = { TS2_I2C_ENUM_REMOTE_MFGR_ID_LO_V1, |
| 1223 | TS2_I2C_ENUM_REMOTE_MFGR_ID_HI_V1}, |
| 1224 | .num_ids = 2, .ro = 1}, |
| 1225 | [83] = {.debug_name = "REMOTE_MFGRID_V2", |
| 1226 | {{.name = "remote_mfgrid_v2", .mode = S_IRUGO}, |
| 1227 | .show = a6_generic_show, .store = NULL}, |
| 1228 | .format = format_u16_hex, |
| 1229 | .id = { TS2_I2C_ENUM_REMOTE_MFGR_ID_LO, |
| 1230 | TS2_I2C_ENUM_REMOTE_MFGR_ID_HI}, |
| 1231 | .num_ids = 2, .ro = 1}, |
| 1232 | [84] = {.debug_name = "REMOTE_PRODUCTID_V1", |
| 1233 | {{.name = "remote_productid_v1", .mode = S_IRUGO}, |
| 1234 | .show = a6_generic_show, .store = NULL}, |
| 1235 | .format = format_u16_hex, |
| 1236 | .id = { TS2_I2C_ENUM_REMOTE_PRODUCT_TYPE_LO_V1, |
| 1237 | TS2_I2C_ENUM_REMOTE_PRODUCT_TYPE_HI_V1}, |
| 1238 | .num_ids = 2, .ro = 1}, |
| 1239 | [85] = {.debug_name = "REMOTE_PRODUCTID_V2", |
| 1240 | {{.name = "remote_productid_v2", .mode = S_IRUGO}, |
| 1241 | .show = a6_generic_show, .store = NULL}, |
| 1242 | .format = format_u16_hex, |
| 1243 | .id = { TS2_I2C_ENUM_REMOTE_PRODUCT_TYPE_LO, |
| 1244 | TS2_I2C_ENUM_REMOTE_PRODUCT_TYPE_HI}, |
| 1245 | .num_ids = 2, .ro = 1}, |
| 1246 | [86] = {.debug_name = "REMOTE_SERNO_V1", |
| 1247 | {{.name = "remote_serno_v1", .mode = S_IRUGO}, |
| 1248 | .show = a6_generic_show, .store = NULL}, |
| 1249 | .format = format_serno_v1, |
| 1250 | .id = { TS2_I2C_ENUM_REMOTE_SERNO_0, TS2_I2C_ENUM_REMOTE_SERNO_1, |
| 1251 | TS2_I2C_ENUM_REMOTE_SERNO_2, TS2_I2C_ENUM_REMOTE_SERNO_3, |
| 1252 | TS2_I2C_ENUM_REMOTE_SERNO_4, TS2_I2C_ENUM_REMOTE_SERNO_5}, |
| 1253 | .num_ids = 6, .ro = 1}, |
| 1254 | [87] = {.debug_name = "REMOTE_SERNO_V2", |
| 1255 | {{.name = "remote_serno_v2", .mode = S_IRUGO}, |
| 1256 | .show = a6_generic_show, .store = NULL}, |
| 1257 | .format = format_serno_v2, |
| 1258 | .id = { TS2_I2C_ENUM_REMOTE_SERNO_0, TS2_I2C_ENUM_REMOTE_SERNO_1, |
| 1259 | TS2_I2C_ENUM_REMOTE_SERNO_2, TS2_I2C_ENUM_REMOTE_SERNO_3, |
| 1260 | TS2_I2C_ENUM_REMOTE_SERNO_4, TS2_I2C_ENUM_REMOTE_SERNO_5, |
| 1261 | TS2_I2C_ENUM_REMOTE_SERNO_6, TS2_I2C_ENUM_REMOTE_SERNO_7}, |
| 1262 | .num_ids = 8, .ro = 1}, |
| 1263 | [88] = {.debug_name = "LOCAL_MFGRID", |
| 1264 | {{.name = "local_mfgrid", .mode = S_IRUGO}, |
| 1265 | .show = a6_generic_show, .store = NULL}, |
| 1266 | .format = format_u16_hex, |
| 1267 | .id = { TS2_I2C_ENUM_MFGR_ID_LO, TS2_I2C_ENUM_MFGR_ID_HI}, |
| 1268 | .num_ids = 2, .ro = 1}, |
| 1269 | [89] = {.debug_name = "LOCAL_PRODUCTID", |
| 1270 | {{.name = "local_productid", .mode = S_IRUGO}, |
| 1271 | .show = a6_generic_show, .store = NULL}, |
| 1272 | .format = format_u16_hex, |
| 1273 | .id = { TS2_I2C_ENUM_PRODUCT_TYPE_LO, TS2_I2C_ENUM_PRODUCT_TYPE_HI}, |
| 1274 | .num_ids = 2, .ro = 1}, |
| 1275 | [90] = {.debug_name = "LOCAL_SERNO", |
| 1276 | {{.name = "local_serno", .mode = S_IRUGO}, |
| 1277 | .show = a6_generic_show, .store = NULL}, |
| 1278 | .format = format_serno_v2, |
| 1279 | .id = { TS2_I2C_ENUM_SERNO_0, TS2_I2C_ENUM_SERNO_1, |
| 1280 | TS2_I2C_ENUM_SERNO_2, TS2_I2C_ENUM_SERNO_3, |
| 1281 | TS2_I2C_ENUM_SERNO_4, TS2_I2C_ENUM_SERNO_5, |
| 1282 | TS2_I2C_ENUM_SERNO_6, TS2_I2C_ENUM_SERNO_7}, |
| 1283 | .num_ids = 8, .ro = 1}, |
| 1284 | }; |
| 1285 | |
| 1286 | |
| 1287 | struct device_attribute custom_devattr[] = { |
| 1288 | {{.name = "a6_diag", .mode = S_IRUGO | S_IWUGO}, |
| 1289 | .show = a6_diag_show, .store = a6_diag_store}, |
| 1290 | {{.name = "validate_cksum", .mode = S_IRUGO}, |
| 1291 | .show = a6_val_cksum_show, .store = NULL}, |
| 1292 | }; |
| 1293 | |
| 1294 | static enum power_supply_property a6_fish_battery_properties[] = { |
| 1295 | POWER_SUPPLY_PROP_STATUS, |
| 1296 | POWER_SUPPLY_PROP_HEALTH, |
| 1297 | POWER_SUPPLY_PROP_PRESENT, |
| 1298 | POWER_SUPPLY_PROP_TECHNOLOGY, |
| 1299 | POWER_SUPPLY_PROP_CAPACITY, |
| 1300 | POWER_SUPPLY_PROP_CURRENT_NOW, |
| 1301 | POWER_SUPPLY_PROP_VOLTAGE_NOW, |
| 1302 | POWER_SUPPLY_PROP_TEMP, |
| 1303 | POWER_SUPPLY_PROP_CHARGE_FULL, |
| 1304 | POWER_SUPPLY_PROP_CHARGE_NOW, |
| 1305 | }; |
| 1306 | |
| 1307 | static enum power_supply_property a6_fish_power_properties[] = { |
| 1308 | POWER_SUPPLY_PROP_ONLINE, |
| 1309 | }; |
| 1310 | |
| 1311 | static char *supply_list[] = { |
| 1312 | "battery", |
| 1313 | }; |
| 1314 | |
| 1315 | static int a6_fish_power_get_property(struct power_supply *psy, |
| 1316 | enum power_supply_property psp, |
| 1317 | union power_supply_propval *val); |
| 1318 | |
| 1319 | static int a6_fish_battery_get_property(struct power_supply *psy, |
| 1320 | enum power_supply_property psp, |
| 1321 | union power_supply_propval *val); |
| 1322 | |
| 1323 | static struct power_supply a6_fish_power_supplies[] = { |
| 1324 | { |
| 1325 | .name = "battery", |
| 1326 | .type = POWER_SUPPLY_TYPE_BATTERY, |
| 1327 | .properties = a6_fish_battery_properties, |
| 1328 | .num_properties = ARRAY_SIZE(a6_fish_battery_properties), |
| 1329 | .get_property = a6_fish_battery_get_property, |
| 1330 | }, |
| 1331 | { |
| 1332 | .name = "ac", |
| 1333 | .type = POWER_SUPPLY_TYPE_MAINS, |
| 1334 | .supplied_to = supply_list, |
| 1335 | .num_supplicants = ARRAY_SIZE(supply_list), |
| 1336 | .properties = a6_fish_power_properties, |
| 1337 | .num_properties = ARRAY_SIZE(a6_fish_power_properties), |
| 1338 | .get_property = a6_fish_power_get_property, |
| 1339 | }, |
| 1340 | { |
| 1341 | .name = "usb", |
| 1342 | .type = POWER_SUPPLY_TYPE_USB, |
| 1343 | .supplied_to = supply_list, |
| 1344 | .num_supplicants = ARRAY_SIZE(supply_list), |
| 1345 | .properties = a6_fish_power_properties, |
| 1346 | .num_properties = ARRAY_SIZE(a6_fish_power_properties), |
| 1347 | .get_property = a6_fish_power_get_property, |
| 1348 | }, |
| 1349 | #ifdef CONFIG_A6_ENABLE_DOCK_PS |
| 1350 | { |
| 1351 | .name = "dock", |
| 1352 | .type = POWER_SUPPLY_TYPE_MAINS, |
| 1353 | .supplied_to = supply_list, |
| 1354 | .num_supplicants = ARRAY_SIZE(supply_list), |
| 1355 | .properties = a6_fish_power_properties, |
| 1356 | .num_properties = ARRAY_SIZE(a6_fish_power_properties), |
| 1357 | .get_property = a6_fish_power_get_property, |
| 1358 | }, |
| 1359 | #endif |
| 1360 | }; |
| 1361 | |
| 1362 | #ifdef A6_PQ |
| 1363 | // a6 debugfs interface... |
| 1364 | #ifdef A6_DEBUG |
| 1365 | |
| 1366 | |
| 1367 | static int32_t a6_restart_aid_thread_fn(void* param) |
| 1368 | { |
| 1369 | struct a6_device_state* state = param; |
| 1370 | int32_t rc = 0; |
| 1371 | |
| 1372 | daemonize("dbg_aidrst_%s", state->plat_data->dev_name); |
| 1373 | while (!state->dbgflg_kill_raid) { |
| 1374 | // stop aid task |
| 1375 | rc = a6_stop_ai_dispatch_task(state); |
| 1376 | if (rc) { |
| 1377 | printk(KERN_ERR "%s: failed to stop ai_dispatch_task.\n", __func__); |
| 1378 | break; |
| 1379 | } |
| 1380 | |
| 1381 | // re-start aid task |
| 1382 | rc = a6_start_ai_dispatch_task(state); |
| 1383 | if (rc) { |
| 1384 | printk(KERN_ERR "%s: failed to start ai_dispatch_task.\n", __func__); |
| 1385 | break; |
| 1386 | } |
| 1387 | |
| 1388 | // sleep |
| 1389 | msleep(500); |
| 1390 | } |
| 1391 | |
| 1392 | rc = mutex_lock_interruptible(&state->dev_mutex); |
| 1393 | if (rc) { |
| 1394 | printk(KERN_ERR "%s: mutex_lock_interruptible interrupted\n", __func__); |
| 1395 | return -ERESTARTSYS; |
| 1396 | } |
| 1397 | state->debug_restart_aid = 0; |
| 1398 | state->dbgflg_kill_raid = 0; |
| 1399 | mutex_unlock(&state->dev_mutex); |
| 1400 | |
| 1401 | return rc; |
| 1402 | } |
| 1403 | |
| 1404 | static int a6_test_restart_aid_set(void *data, u64 val) |
| 1405 | { |
| 1406 | int32_t rc = 0; |
| 1407 | pid_t aiq_flush_pid = 0; |
| 1408 | struct a6_device_state* state = data; |
| 1409 | uint8_t in_val, curr_val; |
| 1410 | |
| 1411 | in_val = val ? 1 : val; |
| 1412 | rc = mutex_lock_interruptible(&state->dev_mutex); |
| 1413 | if (rc) { |
| 1414 | printk(KERN_ERR "%s: mutex_lock_interruptible interrupted\n", __func__); |
| 1415 | return -ERESTARTSYS; |
| 1416 | } |
| 1417 | curr_val = state->debug_restart_aid; |
| 1418 | |
| 1419 | // are we actually changing state? |
| 1420 | if (in_val ^ curr_val) { |
| 1421 | if (in_val) { |
| 1422 | // prev task still being killed or active: fail |
| 1423 | if (state->dbgflg_kill_raid || state->debug_restart_aid) { |
| 1424 | printk(KERN_ERR "%s: prev task still being killed or active: fail\n", |
| 1425 | __func__); |
| 1426 | goto err0; |
| 1427 | } |
| 1428 | // create ai dispatcher task... |
| 1429 | aiq_flush_pid = kernel_thread(a6_restart_aid_thread_fn, state, CLONE_KERNEL); |
| 1430 | ASSERT(aiq_flush_pid >= 0); |
| 1431 | state->debug_restart_aid = in_val; |
| 1432 | } |
| 1433 | else { |
| 1434 | // prev task still being killed or not active: fail |
| 1435 | if (state->dbgflg_kill_raid || !state->debug_restart_aid) { |
| 1436 | printk(KERN_ERR "%s: prev task still being killed or not active: fail\n", |
| 1437 | __func__); |
| 1438 | goto err0; |
| 1439 | } |
| 1440 | // intent to kill task; task resets state as part of teardown |
| 1441 | state->dbgflg_kill_raid = 1; |
| 1442 | } |
| 1443 | } |
| 1444 | mutex_unlock(&state->dev_mutex); |
| 1445 | |
| 1446 | |
| 1447 | err0: |
| 1448 | return rc; |
| 1449 | } |
| 1450 | static int a6_test_restart_aid_get(void *data, u64 *val) |
| 1451 | { |
| 1452 | struct a6_device_state* state = data; |
| 1453 | |
| 1454 | *val = state->debug_restart_aid; |
| 1455 | return 0; |
| 1456 | } |
| 1457 | |
| 1458 | DEFINE_SIMPLE_ATTRIBUTE(fops_a6_test_restart_aid, a6_test_restart_aid_get, a6_test_restart_aid_set, "%llu\n"); |
| 1459 | |
| 1460 | static int32_t a6_create_debug_interface(struct a6_device_state* state) |
| 1461 | { |
| 1462 | int32_t rc = 0; |
| 1463 | struct dentry *dentry_parent, *dentry_child; |
| 1464 | |
| 1465 | dentry_parent = debugfs_create_dir("a6", 0); |
| 1466 | if (IS_ERR(dentry_parent)) { |
| 1467 | rc = PTR_ERR(dentry_parent); |
| 1468 | goto err0; |
| 1469 | } |
| 1470 | |
| 1471 | dentry_child = debugfs_create_file("periodic_restart_aid", 0644, |
| 1472 | dentry_parent, state, &fops_a6_test_restart_aid); |
| 1473 | if (IS_ERR(dentry_child)) { |
| 1474 | rc = PTR_ERR(dentry_child); |
| 1475 | goto err0; |
| 1476 | } |
| 1477 | |
| 1478 | return 0; |
| 1479 | |
| 1480 | err0: |
| 1481 | debugfs_remove_recursive(dentry_parent); |
| 1482 | return rc; |
| 1483 | } |
| 1484 | #endif |
| 1485 | #endif // A6_PQ |
| 1486 | |
| 1487 | #ifdef A6_PQ |
| 1488 | // a6 action item types |
| 1489 | enum { |
| 1490 | AI_I2C_TYPE, |
| 1491 | }; |
| 1492 | |
| 1493 | struct a6_action_item { |
| 1494 | void* ai_payload; |
| 1495 | uint32_t ai_type: 4; |
| 1496 | uint32_t ai_complete:1; |
| 1497 | int32_t (*ai_do_action)(void* payload_param); |
| 1498 | int32_t* (*ai_ret_code)(void* payload_param); |
| 1499 | wait_queue_head_t ai_waitq; |
| 1500 | struct list_head list; |
| 1501 | }; |
| 1502 | |
| 1503 | /* |
| 1504 | enq_a6_action_item: q's action item and blocks till action completion... |
| 1505 | */ |
| 1506 | int32_t enq_a6_action_item(struct a6_device_state* state, struct a6_action_item* ai, bool enq_tail) |
| 1507 | { |
| 1508 | int32_t rc = 0; |
| 1509 | |
| 1510 | mutex_lock(&state->aq_mutex); |
| 1511 | if (true == enq_tail) { |
| 1512 | list_add_tail(&ai->list, &state->aq_head); |
| 1513 | } |
| 1514 | else { |
| 1515 | list_add(&ai->list, &state->aq_head); |
| 1516 | } |
| 1517 | mutex_unlock(&state->aq_mutex); |
| 1518 | |
| 1519 | // signal the action_item dispatcher thread |
| 1520 | complete(&state->aq_enq_complete); |
| 1521 | |
| 1522 | // ** wait for action_item to be processed |
| 1523 | a6_wait_event_ex(ai->ai_waitq, ai->ai_complete); |
| 1524 | rc = *ai->ai_ret_code(ai->ai_payload); |
| 1525 | |
| 1526 | return rc; |
| 1527 | } |
| 1528 | |
| 1529 | /* |
| 1530 | dq_a6_action_item: dq's head item from action item list... |
| 1531 | */ |
| 1532 | struct a6_action_item* dq_a6_action_item(struct a6_device_state* state) |
| 1533 | { |
| 1534 | struct a6_action_item* ai = NULL; |
| 1535 | |
| 1536 | mutex_lock(&state->aq_mutex); |
| 1537 | if (!list_empty(&state->aq_head)) { |
| 1538 | ai = list_first_entry(&state->aq_head, struct a6_action_item, list); |
| 1539 | list_del(state->aq_head.next); |
| 1540 | } |
| 1541 | mutex_unlock(&state->aq_mutex); |
| 1542 | |
| 1543 | return ai; |
| 1544 | } |
| 1545 | |
| 1546 | /* |
| 1547 | flush_a6_action_items: iterates action item list, dq's each item, marks it cancelled |
| 1548 | and complete and then wakes up the requestor... |
| 1549 | */ |
| 1550 | int32_t flush_a6_action_items(struct a6_device_state* state) |
| 1551 | { |
| 1552 | int32_t rc = 0; |
| 1553 | struct a6_action_item* ai = NULL; |
| 1554 | |
| 1555 | // lock list until all items removed |
| 1556 | mutex_lock(&state->aq_mutex); |
| 1557 | while (!list_empty(&state->aq_head)) { |
| 1558 | // get first entry... |
| 1559 | ai = list_first_entry(&state->aq_head, struct a6_action_item, list); |
| 1560 | // ... and remove from list |
| 1561 | list_del(state->aq_head.next); |
| 1562 | *ai->ai_ret_code(ai->ai_payload) = -ECANCELED; |
| 1563 | // set completion indicator |
| 1564 | ai->ai_complete = 1; |
| 1565 | // signal ai requestor |
| 1566 | wake_up(&ai->ai_waitq); |
| 1567 | } |
| 1568 | mutex_unlock(&state->aq_mutex); |
| 1569 | |
| 1570 | return rc; |
| 1571 | } |
| 1572 | |
| 1573 | |
| 1574 | struct ai_i2c_payload { |
| 1575 | struct i2c_client* client; |
| 1576 | struct i2c_msg* msg; |
| 1577 | uint32_t num_msgs; |
| 1578 | int32_t rc; |
| 1579 | }; |
| 1580 | |
| 1581 | /* |
| 1582 | do_i2c_action_item: i2c-specific action implementation... |
| 1583 | */ |
| 1584 | int32_t do_i2c_action_item(void* payload_param) |
| 1585 | { |
| 1586 | struct ai_i2c_payload* trf_data = (struct ai_i2c_payload*)payload_param; |
| 1587 | |
| 1588 | trf_data->rc = i2c_transfer(trf_data->client->adapter, trf_data->msg, trf_data->num_msgs); |
| 1589 | udelay(700); |
| 1590 | if (trf_data->rc < 0) { |
| 1591 | printk(KERN_ERR "%s: err code: %d\n", __func__, trf_data->rc); |
| 1592 | goto err0; |
| 1593 | } |
| 1594 | |
| 1595 | trf_data->rc = 0; |
| 1596 | err0: |
| 1597 | return trf_data->rc; |
| 1598 | } |
| 1599 | |
| 1600 | /* |
| 1601 | i2c_ret_code: i2c-specific ret-code reference retrieval... |
| 1602 | */ |
| 1603 | int32_t* i2c_ret_code(void* payload_param) |
| 1604 | { |
| 1605 | struct ai_i2c_payload* trf_data = (struct ai_i2c_payload*)payload_param; |
| 1606 | |
| 1607 | return (&trf_data->rc); |
| 1608 | } |
| 1609 | |
| 1610 | /* |
| 1611 | q_a6_i2c_action_item: creates the action item structure and enq's it... |
| 1612 | */ |
| 1613 | int32_t q_a6_i2c_action_item(struct i2c_client* client, struct i2c_msg* msg, uint32_t num_msgs) |
| 1614 | { |
| 1615 | int32_t ret = 0; |
| 1616 | struct ai_i2c_payload data = { |
| 1617 | .client = client, |
| 1618 | .msg = msg, |
| 1619 | .num_msgs = num_msgs, |
| 1620 | .rc = 0 |
| 1621 | }; |
| 1622 | |
| 1623 | struct a6_action_item a6_i2c_ai = { |
| 1624 | .ai_payload = &data, |
| 1625 | .ai_type = AI_I2C_TYPE, |
| 1626 | .ai_complete = 0, |
| 1627 | .ai_do_action = do_i2c_action_item, |
| 1628 | .ai_ret_code = i2c_ret_code, |
| 1629 | .list = LIST_HEAD_INIT(a6_i2c_ai.list) |
| 1630 | }; |
| 1631 | |
| 1632 | init_waitqueue_head(&a6_i2c_ai.ai_waitq); |
| 1633 | ret = enq_a6_action_item(i2c_get_clientdata(client), &a6_i2c_ai, true/*enq tail*/); |
| 1634 | |
| 1635 | return ret; |
| 1636 | } |
| 1637 | |
| 1638 | /* |
| 1639 | ai_dispatch_thread_fn: function that handles ai processing in the aid task... |
| 1640 | */ |
| 1641 | int ai_dispatch_thread_fn(void* param) |
| 1642 | { |
| 1643 | int32_t rc = 0; |
| 1644 | struct a6_action_item* ai; |
| 1645 | struct a6_device_state* state = param; |
| 1646 | |
| 1647 | daemonize("aid_%s", state->plat_data->dev_name); |
| 1648 | do { |
| 1649 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: about to wait for ai enq complete.\n", __func__); |
| 1650 | // wait for ai to be enq'd |
| 1651 | rc = wait_for_completion_interruptible(&state->aq_enq_complete); |
| 1652 | if (rc >= 0) { |
| 1653 | // check kill status: intent to kill? |
| 1654 | if (test_bit(KILLING_AID_TASK, state->flags)) { |
| 1655 | // remove all items from q |
| 1656 | flush_a6_action_items(state); |
| 1657 | // and signal killer before exiting stage... |
| 1658 | complete(&state->aid_exit_complete); |
| 1659 | break; |
| 1660 | } |
| 1661 | |
| 1662 | ai = dq_a6_action_item(state); |
| 1663 | if (ai) { |
| 1664 | int32_t ret_val; |
| 1665 | |
| 1666 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: got ai.\n", __func__); |
| 1667 | // invoke ai-specific action |
| 1668 | ret_val = ai->ai_do_action(ai->ai_payload); |
| 1669 | if (ret_val) { |
| 1670 | printk(KERN_ERR "%s: ai_do_action failed.\n", __func__); |
| 1671 | } |
| 1672 | |
| 1673 | // set completion indicator |
| 1674 | ai->ai_complete = 1; |
| 1675 | // signal ai requestor |
| 1676 | wake_up(&ai->ai_waitq); |
| 1677 | } |
| 1678 | else { |
| 1679 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: no ai.\n", __func__); |
| 1680 | } |
| 1681 | } |
| 1682 | // wait interrupted by -ERESTARTSYS: let's exit |
| 1683 | else { |
| 1684 | printk(KERN_ERR "%s: wait for action_item enq interrupted.\n", |
| 1685 | __func__); |
| 1686 | // force a panic... |
| 1687 | BUG_ON(rc < 0); |
| 1688 | } |
| 1689 | } while(rc >= 0); |
| 1690 | |
| 1691 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "*** %s: exiting ai_dispatch_thread_fn.***\n", __func__); |
| 1692 | |
| 1693 | return rc; |
| 1694 | } |
| 1695 | #endif // A6_PQ |
| 1696 | |
| 1697 | |
| 1698 | int32_t __a6_i2c_read_reg(struct i2c_client* client, const uint16_t* ids, uint32_t num_ids, uint8_t* out) |
| 1699 | { |
| 1700 | int32_t ret = 0, i; |
| 1701 | uint16_t swp_addr[num_ids]; |
| 1702 | struct i2c_msg msg[num_ids*2], *msg_itr; |
| 1703 | struct a6_device_state* state = i2c_get_clientdata(client); |
| 1704 | #ifdef A6_I2C_PROFILE |
| 1705 | ktime_t start, end; |
| 1706 | #endif |
| 1707 | |
| 1708 | #ifdef A6_PQ |
| 1709 | if (test_bit(IS_QUIESCED, ((struct a6_device_state*)i2c_get_clientdata(client))->flags)) { |
| 1710 | ret = -ECANCELED; |
| 1711 | goto err0; |
| 1712 | } |
| 1713 | #endif // A6_PQ |
| 1714 | |
| 1715 | // force A6 wakeup... |
| 1716 | if (start_last_a6_activity) { |
| 1717 | long diff_time = (long)jiffies - (long)start_last_a6_activity; |
| 1718 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: time since last activity: %ld ms\n", |
| 1719 | __func__, diff_time * 1000/HZ); |
| 1720 | } |
| 1721 | start_last_a6_activity = jiffies; |
| 1722 | |
| 1723 | // prevent timer expiry during force_wake related action... |
| 1724 | del_timer(&state->a6_force_wake_timer); |
| 1725 | |
| 1726 | mutex_lock(&state->a6_force_wake_mutex); |
| 1727 | // a6 external wake enabled? |
| 1728 | if (test_bit(CAP_PERIODIC_WAKE, state->flags)) { |
| 1729 | if (!test_bit(FORCE_WAKE_ACTIVE_BIT, state->flags)) { |
| 1730 | struct a6_wake_ops* wake_ops = (struct a6_wake_ops*)state->plat_data->wake_ops; |
| 1731 | |
| 1732 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, |
| 1733 | "%s: disabling periodic_wake and switching to force_wake\n", |
| 1734 | __func__); |
| 1735 | |
| 1736 | // periodic wake active: disable it and switch to force wake |
| 1737 | if (wake_ops->disable_periodic_wake) { |
| 1738 | wake_ops->disable_periodic_wake(wake_ops->data); |
| 1739 | } |
| 1740 | if (wake_ops->force_wake) { |
| 1741 | wake_ops->force_wake(wake_ops->data); |
| 1742 | } |
| 1743 | |
| 1744 | set_bit(FORCE_WAKE_ACTIVE_BIT, state->flags); |
| 1745 | } |
| 1746 | } |
| 1747 | mutex_unlock(&state->a6_force_wake_mutex); |
| 1748 | |
| 1749 | #ifdef A6_I2C_PROFILE |
| 1750 | start = ktime_get(); |
| 1751 | #endif |
| 1752 | msg_itr = &msg[0]; |
| 1753 | for (i = num_ids-1; i >= 0; i--) { |
| 1754 | msg_itr->addr = client->addr; |
| 1755 | msg_itr->flags = 0; |
| 1756 | msg_itr->len = sizeof(uint16_t); |
| 1757 | swp_addr[i] = ids[i] >> 8 | ids[i] << 8; |
| 1758 | msg_itr->buf = (uint8_t*)&swp_addr[i]; |
| 1759 | |
| 1760 | (msg_itr+1)->addr = client->addr; |
| 1761 | (msg_itr+1)->flags = I2C_M_RD; |
| 1762 | (msg_itr+1)->len = sizeof(uint8_t); |
| 1763 | (msg_itr+1)->buf = &out[i]; |
| 1764 | #ifdef CONFIG_A6_I2C_SINGLE_BYTE |
| 1765 | #ifdef A6_PQ |
| 1766 | ret = q_a6_i2c_action_item(client, msg, 2); |
| 1767 | #else |
| 1768 | ret = i2c_transfer(client->adapter, msg, 2); |
| 1769 | #endif // A6_PQ |
| 1770 | #endif |
| 1771 | msg_itr += 2; |
| 1772 | } |
| 1773 | |
| 1774 | |
| 1775 | #ifndef CONFIG_A6_I2C_SINGLE_BYTE |
| 1776 | #ifdef A6_PQ |
| 1777 | ret = q_a6_i2c_action_item(client, msg, num_ids*2); |
| 1778 | #else |
| 1779 | ret = i2c_transfer(client->adapter, msg, num_ids*2); |
| 1780 | #endif // A6_PQ |
| 1781 | #endif |
| 1782 | //msleep(1); |
| 1783 | #ifdef A6_I2C_PROFILE |
| 1784 | { |
| 1785 | end = ktime_get(); |
| 1786 | printk(KERN_ERR "%s[0x%02x]: elpased time: %lld\n", |
| 1787 | __func__, client->addr, ktime_to_ns(ktime_sub(end, start))); |
| 1788 | } |
| 1789 | #endif |
| 1790 | if (ret < 0) { |
| 1791 | printk(KERN_ERR "%s[0x%02x]: err code: %d\n", __func__, client->addr, ret); |
| 1792 | // reset the force_wake timer inedependent of i2c failure |
| 1793 | //goto err0; |
| 1794 | } |
| 1795 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "ret val: 0x%x\n", *out); |
| 1796 | |
| 1797 | if (test_bit(CAP_PERIODIC_WAKE, state->flags)) { |
| 1798 | // [re]start force-wake expiry timer |
| 1799 | mod_timer(&state->a6_force_wake_timer, jiffies+FORCE_WAKE_TIMER_EXPIRY); |
| 1800 | } |
| 1801 | |
| 1802 | err0: |
| 1803 | return ret; |
| 1804 | } |
| 1805 | |
| 1806 | int32_t a6_i2c_read_reg(struct i2c_client* client, const uint16_t* ids, uint32_t num_ids, uint8_t* out) |
| 1807 | { |
| 1808 | int32_t ret; |
| 1809 | #ifdef A6_I2C_RETRY |
| 1810 | int32_t retry = 5; |
| 1811 | #else |
| 1812 | int32_t retry = 0; |
| 1813 | #endif |
| 1814 | |
| 1815 | do { |
| 1816 | ret = __a6_i2c_read_reg(client, ids, num_ids, out); |
| 1817 | if (ret < 0) { |
| 1818 | printk("%s: a6 i2c transaction failed. %s...\n", __func__, retry ? "retry" : " "); |
| 1819 | msleep(30); |
| 1820 | } |
| 1821 | } while (0 != ret && retry-- > 0); |
| 1822 | |
| 1823 | return ret; |
| 1824 | } |
| 1825 | |
| 1826 | int32_t __a6_i2c_write_reg(struct i2c_client* client, const uint16_t* ids, uint32_t num_ids, const uint8_t* in) |
| 1827 | { |
| 1828 | int32_t ret = 0, i; |
| 1829 | uint8_t i2c_buf[(2+1)*num_ids]; |
| 1830 | struct i2c_msg msg[num_ids], *msg_itr; |
| 1831 | struct a6_device_state* state = i2c_get_clientdata(client); |
| 1832 | |
| 1833 | #ifdef A6_PQ |
| 1834 | if (test_bit(IS_QUIESCED, ((struct a6_device_state*)i2c_get_clientdata(client))->flags)) { |
| 1835 | ret = -ECANCELED; |
| 1836 | goto err0; |
| 1837 | } |
| 1838 | #endif // A6_PQ |
| 1839 | |
| 1840 | // force A6 wakeup... |
| 1841 | if (start_last_a6_activity) { |
| 1842 | long diff_time = (long)jiffies - (long)start_last_a6_activity; |
| 1843 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: time since last activity: %ld ms\n", |
| 1844 | __func__, diff_time * 1000/HZ); |
| 1845 | } |
| 1846 | start_last_a6_activity = jiffies; |
| 1847 | |
| 1848 | // prevent timer expiry during force_wake related action... |
| 1849 | del_timer(&state->a6_force_wake_timer); |
| 1850 | |
| 1851 | mutex_lock(&state->a6_force_wake_mutex); |
| 1852 | if (test_bit(CAP_PERIODIC_WAKE, state->flags)) { |
| 1853 | if (!test_and_set_bit(FORCE_WAKE_ACTIVE_BIT, state->flags)) { |
| 1854 | struct a6_wake_ops* wake_ops = (struct a6_wake_ops*)state->plat_data->wake_ops; |
| 1855 | |
| 1856 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, |
| 1857 | "%s: disabling periodic_wake and switching to force_wake\n", |
| 1858 | __func__); |
| 1859 | |
| 1860 | // periodic wake active: disable it and switch to force wake |
| 1861 | if (wake_ops->disable_periodic_wake) { |
| 1862 | wake_ops->disable_periodic_wake(wake_ops->data); |
| 1863 | } |
| 1864 | if (wake_ops->force_wake) { |
| 1865 | wake_ops->force_wake(wake_ops->data); |
| 1866 | } |
| 1867 | |
| 1868 | set_bit(FORCE_WAKE_ACTIVE_BIT, state->flags); |
| 1869 | } |
| 1870 | } |
| 1871 | mutex_unlock(&state->a6_force_wake_mutex); |
| 1872 | |
| 1873 | msg_itr = &msg[0]; |
| 1874 | for (i = num_ids-1; i >= 0; i--) { |
| 1875 | i2c_buf[(i*(2+1))+0] = (uint8_t)(ids[i] >> 8); |
| 1876 | i2c_buf[(i*(2+1))+1] = (uint8_t)(ids[i]); |
| 1877 | i2c_buf[(i*(2+1))+2] = in[i]; |
| 1878 | |
| 1879 | msg_itr->addr = client->addr; |
| 1880 | msg_itr->flags = 0; |
| 1881 | msg_itr->len = 2+1; |
| 1882 | msg_itr->buf = &i2c_buf[i*(2+1)]; |
| 1883 | #ifdef CONFIG_A6_I2C_SINGLE_BYTE_WRITE |
| 1884 | #ifdef A6_PQ |
| 1885 | ret = q_a6_i2c_action_item(client, msg_itr, 1); |
| 1886 | #else |
| 1887 | ret = i2c_transfer(client->adapter, msg_itr, 1); |
| 1888 | #endif // A6_PQ |
| 1889 | udelay(700); |
| 1890 | if (ret < 0) |
| 1891 | break; |
| 1892 | #endif |
| 1893 | msg_itr++; |
| 1894 | } |
| 1895 | |
| 1896 | #ifndef CONFIG_A6_I2C_SINGLE_BYTE_WRITE |
| 1897 | #ifdef A6_PQ |
| 1898 | ret = q_a6_i2c_action_item(client, msg, num_ids); |
| 1899 | #else |
| 1900 | ret = i2c_transfer(client->adapter, msg, num_ids); |
| 1901 | #endif // A6_PQ |
| 1902 | //msleep(1); |
| 1903 | #endif |
| 1904 | if (ret < 0) { |
| 1905 | printk(KERN_ERR "%s[0x%02x]: err code: %d\n", __func__, client->addr, ret); |
| 1906 | // reset the force_wake timer inedependent of i2c failure |
| 1907 | //goto err0; |
| 1908 | } |
| 1909 | |
| 1910 | if (test_bit(CAP_PERIODIC_WAKE, state->flags)) { |
| 1911 | // [re]start force-wake expiry timer |
| 1912 | mod_timer(&state->a6_force_wake_timer, jiffies+FORCE_WAKE_TIMER_EXPIRY); |
| 1913 | } |
| 1914 | |
| 1915 | err0: |
| 1916 | return ret; |
| 1917 | } |
| 1918 | |
| 1919 | int32_t a6_i2c_write_reg(struct i2c_client* client, const uint16_t* ids, uint32_t num_ids, const uint8_t* in) |
| 1920 | { |
| 1921 | int32_t ret; |
| 1922 | #ifdef A6_I2C_RETRY |
| 1923 | int32_t retry = 5; |
| 1924 | #else |
| 1925 | int32_t retry = 0; |
| 1926 | #endif |
| 1927 | |
| 1928 | do { |
| 1929 | ret = __a6_i2c_write_reg(client, ids, num_ids, in); |
| 1930 | if (ret < 0) { |
| 1931 | printk("%s: a6 i2c transaction failed. %s...\n", __func__, retry ? "retry" : " "); |
| 1932 | msleep(30); |
| 1933 | } |
| 1934 | } while (0 != ret && retry-- > 0); |
| 1935 | |
| 1936 | return ret; |
| 1937 | } |
| 1938 | |
| 1939 | |
| 1940 | uint8_t _convert_hex_char_to_decimal(uint8_t x) |
| 1941 | { |
| 1942 | x -= '0'; |
| 1943 | if (x > 9) { |
| 1944 | x = x - ('A' - ('9' + 1)); |
| 1945 | if (x > 15) { |
| 1946 | x = x - ('a' - 'A'); |
| 1947 | } |
| 1948 | } |
| 1949 | |
| 1950 | return x; |
| 1951 | } |
| 1952 | |
| 1953 | int32_t a6_init_state(struct i2c_client *client) |
| 1954 | { |
| 1955 | int32_t ret = 0; |
| 1956 | struct a6_device_state* state = i2c_get_clientdata(client); |
| 1957 | struct a6_register_desc* reg_desc; |
| 1958 | uint8_t vals[id_size]; |
| 1959 | |
| 1960 | // early initialization of cached rsense to prevent un-initialized usage |
| 1961 | // due to early-boot i2c failures. |
| 1962 | state->cached_rsense_val = RSENSE_DEFAULT; |
| 1963 | |
| 1964 | /* (1) enable external/internal wake, if required */ |
| 1965 | /* periodic wake capability enabled? */ |
| 1966 | if (test_bit(CAP_PERIODIC_WAKE, state->flags)) { |
| 1967 | struct a6_wake_ops* wake_ops = (struct a6_wake_ops*)state->plat_data->wake_ops; |
| 1968 | |
| 1969 | // initialize timer used to force sleep after a force wake... |
| 1970 | setup_timer(&state->a6_force_wake_timer, a6_force_wake_timer_callback, (ulong)state); |
| 1971 | |
| 1972 | /* enable external periodic wake? */ |
| 1973 | if (wake_ops->enable_periodic_wake) { |
| 1974 | printk(KERN_ERR "%s: enabling external PMIC-generated A6 wake.\n", __func__); |
| 1975 | |
| 1976 | wake_ops->enable_periodic_wake(wake_ops->data); |
| 1977 | |
| 1978 | /* disable a6 internal-wake... */ |
| 1979 | reg_desc = &a6_register_desc_arr[34]; |
| 1980 | /* format wakeup parameters in register format */ |
| 1981 | vals[0] = 0; |
| 1982 | ret = a6_i2c_write_reg(client, reg_desc->id, reg_desc->num_ids, vals); |
| 1983 | if (ret < 0) { |
| 1984 | goto err0; |
| 1985 | } |
| 1986 | } |
| 1987 | /* enable internal periodic wake? */ |
| 1988 | else if (wake_ops->internal_wake_enable_state) { |
| 1989 | uint32_t wake_period = 0, wake_enable = 1; |
| 1990 | |
| 1991 | printk(KERN_ERR "%s: enabling A6 internal wake.\n", __func__); |
| 1992 | /* default wake_period, if required */ |
| 1993 | if (!wake_ops->internal_wake_period) { |
| 1994 | wake_period = 0x0; |
| 1995 | } |
| 1996 | else { |
| 1997 | wake_period = wake_ops->internal_wake_period(wake_ops->data); |
| 1998 | if (wake_period > 0x100) { |
| 1999 | wake_period = 0x100; |
| 2000 | } |
| 2001 | } |
| 2002 | |
| 2003 | reg_desc = &a6_register_desc_arr[34]; |
| 2004 | |
| 2005 | if (!wake_period) { |
| 2006 | wake_enable = 0x0; |
| 2007 | } |
| 2008 | |
| 2009 | // bit [4]: Enable sleep. |
| 2010 | // bit [3]: Enable automatic wakeup. |
| 2011 | // bits [2:0]: Sleep period. |
| 2012 | if (wake_period) { |
| 2013 | wake_period = find_last_bit((const unsigned long*)&wake_period, 32); |
| 2014 | wake_period--; |
| 2015 | } |
| 2016 | vals[0] = 0x10 | wake_enable << 3 | (wake_period & 0x07); |
| 2017 | printk(KERN_ERR "%s: TS2_I2C_WAKEUP_PERIOD = 0x%02x\n", |
| 2018 | __func__, vals[0]); |
| 2019 | ret = a6_i2c_write_reg(client, reg_desc->id, reg_desc->num_ids, vals); |
| 2020 | if (ret < 0) { |
| 2021 | goto err0; |
| 2022 | } |
| 2023 | } |
| 2024 | else { |
| 2025 | BUG(); |
| 2026 | } |
| 2027 | } |
| 2028 | /* periodic wake capability not defined: force a6 awake using SBW_WAKEUP */ |
| 2029 | else { |
| 2030 | printk(KERN_ERR "%s: permanently forcing A6 awake.\n", __func__); |
| 2031 | gpio_set_value(state->plat_data->sbw_wkup_gpio, 1); |
| 2032 | } |
| 2033 | |
| 2034 | /* (2) cache rsense val */ |
| 2035 | reg_desc = &a6_register_desc_arr[19]; |
| 2036 | |
| 2037 | memset(vals, 0, sizeof(vals)); |
| 2038 | ret = a6_i2c_read_reg(client, reg_desc->id, reg_desc->num_ids, vals); |
| 2039 | if (ret < 0) { |
| 2040 | //goto err0; |
| 2041 | } |
| 2042 | |
| 2043 | /* rsense == 0: invalid and results in default |
| 2044 | (logic compatibile with legacy w1 driver implementation) */ |
| 2045 | if (vals[0]) { |
| 2046 | state->cached_rsense_val = 1000/vals[0]; |
| 2047 | if (!state->cached_rsense_val) { |
| 2048 | state->cached_rsense_val = RSENSE_DEFAULT; |
| 2049 | } |
| 2050 | } |
| 2051 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, |
| 2052 | "%s: (cached) rsense value: %u\n", __func__, state->cached_rsense_val); |
| 2053 | |
| 2054 | /* (3) enable irqs: MASK_A2A_CONNECT_CHANGE, MASK_FLAGS_CHANGE */ |
| 2055 | reg_desc = &a6_register_desc_arr[3]; |
| 2056 | |
| 2057 | vals[0] = 0xf3; |
| 2058 | ret = a6_i2c_write_reg(client, reg_desc->id, reg_desc->num_ids, vals); |
| 2059 | if (ret < 0) { |
| 2060 | goto err0; |
| 2061 | } |
| 2062 | |
| 2063 | /* (4) enable irqs: |
| 2064 | MASK_BAT_TEMP_HIGH, MASK_BAT_TEMP_LOW, |
| 2065 | MASK_BAT_VOLT_LOW, MASK_BAT_RARC_CRIT, |
| 2066 | MASK_BAT_RARC_LOW2, MASK_BAT_RARC_LOW1 |
| 2067 | */ |
| 2068 | reg_desc = &a6_register_desc_arr[2]; |
| 2069 | |
| 2070 | vals[0] = 0xc0; |
| 2071 | ret = a6_i2c_write_reg(client, reg_desc->id, reg_desc->num_ids, vals); |
| 2072 | if (ret < 0) { |
| 2073 | goto err0; |
| 2074 | } |
| 2075 | /* read version */ |
| 2076 | reg_desc = &a6_register_desc_arr[32]; |
| 2077 | |
| 2078 | memset(vals, 0, sizeof(vals)); |
| 2079 | ret = a6_i2c_read_reg(client, reg_desc->id, reg_desc->num_ids, vals); |
| 2080 | if (ret < 0) { |
| 2081 | printk(KERN_ERR "%s: error reading A6 version\n", __func__); |
| 2082 | } |
| 2083 | else { |
| 2084 | uint8_t buf[150]; |
| 2085 | |
| 2086 | reg_desc->format(state, vals, buf, sizeof(buf)); |
| 2087 | printk(KERN_INFO "%s", buf); |
| 2088 | } |
| 2089 | |
| 2090 | // if first init (device boot): clear all interrupt status regs because we might |
| 2091 | // have missed the level-triggered a6-irq during device boot and the user-space |
| 2092 | // components read a6 registers to set their initial state correctly... |
| 2093 | if (!test_bit(IS_INITIALIZED_BIT, state->flags)) { |
| 2094 | vals[0] = 0xff; |
| 2095 | |
| 2096 | /* clear int_status3 */ |
| 2097 | reg_desc = &a6_register_desc_arr[7]; |
| 2098 | ret = a6_i2c_write_reg(state->i2c_dev, reg_desc->id, reg_desc->num_ids, vals); |
| 2099 | if (ret < 0) { |
| 2100 | printk(KERN_ERR "%s: error writing reg: %s, id: 0x%x\n", |
| 2101 | __func__, reg_desc->debug_name, reg_desc->id[0]); |
| 2102 | goto err0; |
| 2103 | } |
| 2104 | |
| 2105 | /* clear int_status2 */ |
| 2106 | reg_desc = &a6_register_desc_arr[6]; |
| 2107 | ret = a6_i2c_write_reg(state->i2c_dev, reg_desc->id, reg_desc->num_ids, vals); |
| 2108 | if (ret < 0) { |
| 2109 | printk(KERN_ERR "%s: error writing reg: %s, id: 0x%x\n", |
| 2110 | __func__, reg_desc->debug_name, reg_desc->id[0]); |
| 2111 | goto err0; |
| 2112 | } |
| 2113 | |
| 2114 | /* clear int_status1 */ |
| 2115 | reg_desc = &a6_register_desc_arr[5]; |
| 2116 | ret = a6_i2c_write_reg(state->i2c_dev, reg_desc->id, reg_desc->num_ids, vals); |
| 2117 | if (ret < 0) { |
| 2118 | printk(KERN_ERR "%s: error writing reg: %s, id: 0x%x\n", |
| 2119 | __func__, reg_desc->debug_name, reg_desc->id[0]); |
| 2120 | goto err0; |
| 2121 | } |
| 2122 | } |
| 2123 | |
| 2124 | set_bit(IS_INITIALIZED_BIT, state->flags); |
| 2125 | |
| 2126 | err0: |
| 2127 | return ret; |
| 2128 | } |
| 2129 | |
| 2130 | int32_t format_current(const struct a6_device_state* state, const uint8_t* val, |
| 2131 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2132 | { |
| 2133 | int32_t ret; |
| 2134 | int32_t conv_val = *(int16_t*)val; // (val[0]<<8) + val[1]; |
| 2135 | |
| 2136 | /* in uA */ |
| 2137 | /* TODO: Bootie source code states: |
| 2138 | * Define R sense as 20 mOhms, as opposed as a variable and reading it |
| 2139 | * from the pack, not all packs have the correct R sense programmed |
| 2140 | */ |
| 2141 | conv_val = (conv_val * 3125)/2/(int32_t)state->cached_rsense_val; |
| 2142 | |
| 2143 | ret = scnprintf(fmt_buffer, size_buffer, "%d\n", conv_val); |
| 2144 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, |
| 2145 | "Current value (uA): %s\n", fmt_buffer); |
| 2146 | return ret; |
| 2147 | } |
| 2148 | |
| 2149 | int32_t format_voltage(const struct a6_device_state* state, const uint8_t* val, |
| 2150 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2151 | { |
| 2152 | int32_t ret; |
| 2153 | int32_t conv_val = *(int16_t*)val; // (val[0]<<8) + val[1]; |
| 2154 | |
| 2155 | /* in uV -- 11-bit signed value, unit = 4880uV */ |
| 2156 | conv_val = (conv_val>>5) * 4880; |
| 2157 | ret = scnprintf(fmt_buffer, size_buffer, "%d\n", conv_val); |
| 2158 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "Voltage value (uV): %s\n", |
| 2159 | fmt_buffer); |
| 2160 | return ret; |
| 2161 | } |
| 2162 | |
| 2163 | int32_t r_format_voltage(const struct a6_device_state* state, const uint8_t* fmt_buffer, |
| 2164 | uint8_t* val, uint32_t size_buffer) |
| 2165 | { |
| 2166 | int32_t ret; |
| 2167 | uint32_t conv_val; |
| 2168 | const char *bufp; |
| 2169 | char *endp = NULL; |
| 2170 | |
| 2171 | bufp = fmt_buffer; |
| 2172 | // let strtoul perform base determination (handles '0x' and '0' prefixes) ... |
| 2173 | conv_val = simple_strtoul(bufp, &endp, 0); |
| 2174 | /* in uV -- 11-bit signed value, unit = 4880uV */ |
| 2175 | conv_val = (conv_val / 4880) << 5; |
| 2176 | // capped at 16 bits... |
| 2177 | if (conv_val >> 0x10) { |
| 2178 | ret = 0; |
| 2179 | goto err0; |
| 2180 | } |
| 2181 | ret = (uint32_t)endp - (uint32_t)bufp; |
| 2182 | |
| 2183 | *(uint16_t*)val = conv_val; |
| 2184 | |
| 2185 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: ip: %s op: %d\n", |
| 2186 | __func__, fmt_buffer, conv_val); |
| 2187 | |
| 2188 | err0: |
| 2189 | return ret; |
| 2190 | } |
| 2191 | /** |
| 2192 | * Take the Accumulated Current Register (ACR), which is expressed in units of 6.25uVh |
| 2193 | * and convert to uAh. |
| 2194 | */ |
| 2195 | int32_t format_rawcoulomb(const struct a6_device_state* state, const uint8_t* val, |
| 2196 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2197 | { |
| 2198 | int32_t ret; |
| 2199 | int32_t conv_val = *(int16_t*)val; // (val[0]<<8) + val[1]; |
| 2200 | |
| 2201 | // in uAh |
| 2202 | conv_val = (conv_val * 6250) / (int32_t)state->cached_rsense_val; |
| 2203 | ret = scnprintf(fmt_buffer, size_buffer, "%d.%03d\n", conv_val/1000, |
| 2204 | ((conv_val >= 0)? conv_val : -conv_val) % 1000); |
| 2205 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "Raw Coulomb value (uAh): %s\n", |
| 2206 | fmt_buffer); |
| 2207 | return ret; |
| 2208 | } |
| 2209 | |
| 2210 | /** |
| 2211 | * Take the Remaining Active Absolute Capacity (RAAC) register, which is in |
| 2212 | * units of 1.6 mAh and convert to mAh |
| 2213 | */ |
| 2214 | int32_t format_coulomb(const struct a6_device_state* state, const uint8_t* val, |
| 2215 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2216 | { |
| 2217 | int32_t ret; |
| 2218 | int32_t conv_val = *(int16_t*)val; |
| 2219 | |
| 2220 | // in mAh |
| 2221 | conv_val = (conv_val * 8) / 5; |
| 2222 | ret = scnprintf(fmt_buffer, size_buffer, "%d\n", conv_val); |
| 2223 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "Coulomb value (mAh): %s\n", |
| 2224 | fmt_buffer); |
| 2225 | return ret; |
| 2226 | } |
| 2227 | |
| 2228 | int32_t format_age(const struct a6_device_state* state, const uint8_t* val, |
| 2229 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2230 | { |
| 2231 | int32_t ret, conv_val; |
| 2232 | |
| 2233 | // Age conversion factor, in .01 percent. Raw value 0x80 = 100% |
| 2234 | conv_val = (10000*val[0]) >> 7; |
| 2235 | ret = scnprintf(fmt_buffer, size_buffer, "%d.%02d\n", |
| 2236 | conv_val/100, conv_val%100); |
| 2237 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "Battery life left (%%): %s\n", |
| 2238 | fmt_buffer); |
| 2239 | return ret; |
| 2240 | } |
| 2241 | |
| 2242 | int32_t format_fullx(const struct a6_device_state* state, const uint8_t* val, |
| 2243 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2244 | { |
| 2245 | int32_t ret; |
| 2246 | int32_t conv_val = *(int16_t*)val; // (val[0]<<8) + val[1]; |
| 2247 | |
| 2248 | // Convert 6.25uVh to uAh |
| 2249 | conv_val = (conv_val * 6250) / state->cached_rsense_val; |
| 2250 | ret = scnprintf(fmt_buffer, size_buffer, |
| 2251 | "%d.%03d\n", conv_val/1000, conv_val%1000); |
| 2252 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "Battery life left (uAh): %s\n", |
| 2253 | fmt_buffer); |
| 2254 | return ret; |
| 2255 | } |
| 2256 | |
| 2257 | int32_t format_temp(const struct a6_device_state* state, const uint8_t* val, |
| 2258 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2259 | { |
| 2260 | int32_t ret; |
| 2261 | int conv_val = val[1]; /* Ignoring the fraction part */ |
| 2262 | |
| 2263 | // in C |
| 2264 | ret = snprintf(fmt_buffer, size_buffer, "%d\n", (int8_t)conv_val); |
| 2265 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "Temperature (C): %s\n", |
| 2266 | fmt_buffer); |
| 2267 | return ret; |
| 2268 | } |
| 2269 | |
| 2270 | int32_t format_command(const struct a6_device_state* state, const uint8_t* val, |
| 2271 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2272 | { |
| 2273 | int32_t ret; |
| 2274 | int conv_command_debug_code = val[0]; |
| 2275 | |
| 2276 | ret = snprintf(fmt_buffer, size_buffer, "%d\n", (int8_t)conv_command_debug_code); |
| 2277 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "debug code(C): %s\n", |
| 2278 | fmt_buffer); |
| 2279 | return ret; |
| 2280 | } |
| 2281 | |
| 2282 | int32_t format_accessory(const struct a6_device_state* state, const uint8_t* val, |
| 2283 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2284 | { |
| 2285 | int32_t ret; |
| 2286 | |
| 2287 | ret = scnprintf(fmt_buffer, size_buffer, "%02X\n", val[0]); |
| 2288 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "%s", fmt_buffer); |
| 2289 | return ret; |
| 2290 | } |
| 2291 | |
| 2292 | int32_t format_comm_status(const struct a6_device_state* state, const uint8_t* val, |
| 2293 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2294 | { |
| 2295 | int32_t ret; |
| 2296 | |
| 2297 | ret = scnprintf(fmt_buffer, size_buffer, "%02X\n", val[0]); |
| 2298 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "%s", fmt_buffer); |
| 2299 | return ret; |
| 2300 | } |
| 2301 | |
| 2302 | int32_t r_format_temp(const struct a6_device_state* state, const uint8_t* fmt_buffer, |
| 2303 | uint8_t* val, uint32_t size_buffer) |
| 2304 | { |
| 2305 | int32_t ret; |
| 2306 | int32_t conv_val; |
| 2307 | const char *bufp; |
| 2308 | char *endp = NULL; |
| 2309 | |
| 2310 | bufp = fmt_buffer; |
| 2311 | // let strtoul perform base determination (handles '0x' and '0' prefixes) ... |
| 2312 | conv_val = simple_strtol(bufp, &endp, 0); |
| 2313 | printk(KERN_ERR "conv_val : %d, hex: %x\n", conv_val, conv_val); |
| 2314 | // capped at 8 bits... |
| 2315 | if (conv_val < -128) { |
| 2316 | ret = 0; |
| 2317 | goto err0; |
| 2318 | } |
| 2319 | ret = (uint32_t)endp - (uint32_t)bufp; |
| 2320 | |
| 2321 | /* Ignoring the fraction part */ |
| 2322 | *(uint16_t*)val = (uint8_t)conv_val << 8; |
| 2323 | |
| 2324 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: ip: %s op: %d\n", |
| 2325 | __func__, fmt_buffer, conv_val<<8); |
| 2326 | |
| 2327 | err0: |
| 2328 | return ret; |
| 2329 | } |
| 2330 | |
| 2331 | int32_t format_status(const struct a6_device_state* state, const uint8_t* val, |
| 2332 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2333 | { |
| 2334 | uint32_t conv_val = *val; |
| 2335 | int32_t count, i; |
| 2336 | |
| 2337 | const char* status_bits[] = { |
| 2338 | NULL, |
| 2339 | "power-on-reset", |
| 2340 | "undervoltage", |
| 2341 | NULL, |
| 2342 | "learn", |
| 2343 | "standby-empty", |
| 2344 | "active-empty", |
| 2345 | "charge-termination"}; |
| 2346 | |
| 2347 | for (i = count = 0; i < sizeof(status_bits)/sizeof(status_bits[0]); i++) { |
| 2348 | if ((conv_val & (1 << i)) && status_bits[i] != NULL) { |
| 2349 | count += scnprintf(fmt_buffer + count, size_buffer-count, "%s\n", status_bits[i]); |
| 2350 | } |
| 2351 | } |
| 2352 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, |
| 2353 | "Battery status: %s\n", fmt_buffer); |
| 2354 | |
| 2355 | return count; |
| 2356 | } |
| 2357 | |
| 2358 | int32_t format_rsense(const struct a6_device_state* state, const uint8_t* val, |
| 2359 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2360 | { |
| 2361 | int32_t ret; |
| 2362 | uint32_t conv_val = *val; |
| 2363 | |
| 2364 | ret = scnprintf(fmt_buffer, size_buffer, "%u\n", (!conv_val) ? conv_val : 1000/conv_val); |
| 2365 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "rsense (ohm): %s\n", |
| 2366 | fmt_buffer); |
| 2367 | return ret; |
| 2368 | } |
| 2369 | |
| 2370 | /** |
| 2371 | * Determine what, if any chargers are attached to the system. Only one |
| 2372 | * result will be returned, even if multiple chargers are detected. |
| 2373 | * |
| 2374 | * Output is a combination of: |
| 2375 | * 0x01 - Puck Detected |
| 2376 | * 0x02 - Puck Connected |
| 2377 | * 0x04 - Wired Power Detected |
| 2378 | * 0x08 - Puck Power Connected |
| 2379 | * 0x10 - Wired Power Connected |
| 2380 | * 0x20 - Battery Present |
| 2381 | * |
| 2382 | * Not all values are currently supported. |
| 2383 | */ |
| 2384 | int32_t format_charge_source_status(const struct a6_device_state* state, const uint8_t* val, |
| 2385 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2386 | { |
| 2387 | struct charge_source_status_map { |
| 2388 | uint32_t cs_mask; |
| 2389 | const char* cs_name; |
| 2390 | } cs_map[] = { |
| 2391 | [0] = {0x01, "Puck Detected"}, |
| 2392 | [1] = {0x02, "Puck Connected"}, |
| 2393 | [2] = {0x04, "Wired Power Detected"}, |
| 2394 | [3] = {0x08, "Puck Power Connected"}, |
| 2395 | [4] = {0x10, "Wired Power Connected"}, |
| 2396 | [5] = {0x20, "Battery Present"}, |
| 2397 | }; |
| 2398 | uint32_t conv_val = *val, count = 0; |
| 2399 | int32_t i; |
| 2400 | |
| 2401 | for(i = 0; i < sizeof(cs_map)/sizeof(cs_map[0]); i++) { |
| 2402 | if (conv_val & cs_map[i].cs_mask) { |
| 2403 | count += scnprintf(fmt_buffer + count, (size_buffer - 1) - count, "%s\n", cs_map[i].cs_name); |
| 2404 | } |
| 2405 | } |
| 2406 | |
| 2407 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, |
| 2408 | "charge source status (formatted): %s\n", fmt_buffer); |
| 2409 | |
| 2410 | #ifdef A6_REPORT_CONNECTED_ONLY |
| 2411 | conv_val = 0; |
| 2412 | /* map charge source status to user-space values */ |
| 2413 | /* TODO: differentiate wall charger from USB */ |
| 2414 | if (val[0] & TS2_I2C_FLAGS_2_WIRED_CHARGE) conv_val |= 1; |
| 2415 | if (val[0] & TS2_I2C_FLAGS_2_PUCK_CHARGE) conv_val |= 4; |
| 2416 | #endif |
| 2417 | |
| 2418 | /* output register contents */ |
| 2419 | count = scnprintf(fmt_buffer, size_buffer, "%u\n", conv_val); |
| 2420 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, |
| 2421 | "charge source status (literal): %s\n", fmt_buffer); |
| 2422 | return count; |
| 2423 | } |
| 2424 | |
| 2425 | int32_t format_version(const struct a6_device_state* state, const uint8_t* val, |
| 2426 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2427 | { |
| 2428 | int32_t ret; |
| 2429 | |
| 2430 | ret = scnprintf(fmt_buffer, size_buffer, |
| 2431 | "A6 Version: HW: %d, FW (M.m.B): %d.%d.%d, ManID: %d, ProdTyp: %d\n", |
| 2432 | val[12], val[15], val[14], val[13], |
| 2433 | *(int16_t*)&(val[0]), *(int16_t*)&(val[2])); |
| 2434 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "%s", fmt_buffer); |
| 2435 | return ret; |
| 2436 | } |
| 2437 | |
| 2438 | int32_t format_v_offset(const struct a6_device_state* state, const uint8_t* val, |
| 2439 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2440 | { |
| 2441 | int32_t ret; |
| 2442 | uint32_t conv_val = *val; |
| 2443 | |
| 2444 | ret = scnprintf(fmt_buffer, size_buffer, "%u\n", conv_val); |
| 2445 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "v_offset: %s\n", fmt_buffer); |
| 2446 | return ret; |
| 2447 | } |
| 2448 | |
| 2449 | int32_t format_raw_unsigned(const struct a6_device_state* state, const uint8_t* val, |
| 2450 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2451 | { |
| 2452 | int32_t ret; |
| 2453 | uint32_t conv_val = *val; |
| 2454 | |
| 2455 | ret = scnprintf(fmt_buffer, size_buffer, "%u\n", conv_val); |
| 2456 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "raw_unsigned: %s\n", fmt_buffer); |
| 2457 | return ret; |
| 2458 | } |
| 2459 | |
| 2460 | int32_t format_u16_hex(const struct a6_device_state* state, const uint8_t* val, |
| 2461 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2462 | { |
| 2463 | int32_t ret; |
| 2464 | uint16_t conv_val = *(uint16_t*)val; |
| 2465 | |
| 2466 | ret = scnprintf(fmt_buffer, size_buffer, "0x%04hx\n", conv_val); |
| 2467 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "u16_hex: %s\n", fmt_buffer); |
| 2468 | return ret; |
| 2469 | } |
| 2470 | |
| 2471 | int32_t format_max_power_available(const struct a6_device_state* state, const uint8_t* val, |
| 2472 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2473 | { |
| 2474 | int32_t ret; |
| 2475 | uint32_t vnode_max_val = *(uint16_t*)val; |
| 2476 | uint32_t inode_max_val = *(uint16_t*)(val+2); |
| 2477 | uint32_t power_val = *(val+4); |
| 2478 | uint32_t conv_val; |
| 2479 | |
| 2480 | conv_val = (vnode_max_val * inode_max_val * power_val)/2560; |
| 2481 | ret = scnprintf(fmt_buffer, size_buffer, "%u\n", conv_val); |
| 2482 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "%s", fmt_buffer); |
| 2483 | return ret; |
| 2484 | } |
| 2485 | |
| 2486 | int32_t format_accessory_combo(const struct a6_device_state* state, const uint8_t* val, |
| 2487 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2488 | { |
| 2489 | int32_t ret; |
| 2490 | |
| 2491 | ret = scnprintf(fmt_buffer, size_buffer, |
| 2492 | "0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x " |
| 2493 | "0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x \n", |
| 2494 | val[0], val[1], val[2], val[3], val[4], val[5], val[6], val[7], |
| 2495 | val[8], val[9], val[10], val[11], val[12], val[13], val[14], val[15]); |
| 2496 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "%s", fmt_buffer); |
| 2497 | return ret; |
| 2498 | } |
| 2499 | |
| 2500 | int32_t format_serno_v1(const struct a6_device_state* state, const uint8_t* val, |
| 2501 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2502 | { |
| 2503 | int32_t ret; |
| 2504 | |
| 2505 | ret = scnprintf(fmt_buffer, size_buffer, "%02x%02x%02x%02x%02x%02x\n", |
| 2506 | val[0], val[1], val[2], val[3], val[4], val[5]); |
| 2507 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "%s", fmt_buffer); |
| 2508 | return ret; |
| 2509 | } |
| 2510 | |
| 2511 | int32_t format_serno_v2(const struct a6_device_state* state, const uint8_t* val, |
| 2512 | uint8_t* fmt_buffer, uint32_t size_buffer) |
| 2513 | { |
| 2514 | int32_t ret; |
| 2515 | |
| 2516 | ret = scnprintf(fmt_buffer, size_buffer, "%02x%02x%02x%02x%02x%02x%02x%02x\n", |
| 2517 | val[0], val[1], val[2], val[3], val[4], val[5], val[6], val[7]); |
| 2518 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, "%s", fmt_buffer); |
| 2519 | return ret; |
| 2520 | } |
| 2521 | |
| 2522 | static ssize_t a6_get_reg_vals(struct device *dev, struct device_attribute *attr, uint8_t *vals, unsigned num_vals) |
| 2523 | { |
| 2524 | struct i2c_client *client = to_i2c_client(dev); |
| 2525 | int32_t ret = 0; |
| 2526 | struct a6_register_desc* reg_desc; |
| 2527 | struct a6_device_state* state = i2c_get_clientdata(client); |
| 2528 | |
| 2529 | // critsec for manipulating flags |
| 2530 | ret = mutex_lock_interruptible(&state->dev_mutex); |
| 2531 | if (ret) { |
| 2532 | printk(KERN_ERR "%s: mutex_lock_interruptible interrupted(1)\n", __func__); |
| 2533 | return -ERESTARTSYS; |
| 2534 | } |
| 2535 | |
| 2536 | // are we busy? |
| 2537 | while (test_and_set_bit(DEVICE_BUSY_BIT, state->flags)) { |
| 2538 | // yes: are we in bootload phase? |
| 2539 | if (!test_bit(BOOTLOAD_ACTIVE_BIT, state->flags)) { |
| 2540 | // no: so go ahead and allow concurrent i2c ops (these are |
| 2541 | // synchronized separately to allow priority based execution). |
| 2542 | break; |
| 2543 | } |
| 2544 | |
| 2545 | // in bootload phase: get on a waitq |
| 2546 | mutex_unlock(&state->dev_mutex); |
| 2547 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: about to wait for device non-busy...\n", __func__); |
| 2548 | |
| 2549 | // bootload bit set? wait to be cleared (at least 5 mins: in jiffies) |
| 2550 | ret = wait_event_interruptible_timeout(state->dev_busyq, |
| 2551 | !test_bit(BOOTLOAD_ACTIVE_BIT, state->flags), 300*HZ); |
| 2552 | if (!ret) { |
| 2553 | printk(KERN_ERR "%s: wait on device busy timed-out/interrupted\n", __func__); |
| 2554 | // reset busy state |
| 2555 | clear_bit(DEVICE_BUSY_BIT, state->flags); |
| 2556 | // and continue... |
| 2557 | } |
| 2558 | |
| 2559 | // we're about to manipulate flags again: acquire critsec |
| 2560 | ret = mutex_lock_interruptible(&state->dev_mutex); |
| 2561 | if (ret) { |
| 2562 | printk(KERN_ERR "%s: mutex_lock_interruptible interrupted(2)\n", __func__); |
| 2563 | return -ERESTARTSYS; |
| 2564 | } |
| 2565 | } |
| 2566 | |
| 2567 | // increment busy refcount |
| 2568 | state->busy_count++; |
| 2569 | // done with flags: exit critsec |
| 2570 | mutex_unlock(&state->dev_mutex); |
| 2571 | |
| 2572 | reg_desc = container_of(attr, struct a6_register_desc, dev_attr); |
| 2573 | |
| 2574 | memset(vals, 0, sizeof(vals[0])*num_vals); |
| 2575 | ret = a6_i2c_read_reg(client, reg_desc->id, reg_desc->num_ids, vals); |
| 2576 | |
| 2577 | // reset busy state |
| 2578 | mutex_lock(&state->dev_mutex); |
| 2579 | // decrement busy refcount |
| 2580 | if (state->busy_count) { |
| 2581 | state->busy_count--; |
| 2582 | } |
| 2583 | if (!state->busy_count) { |
| 2584 | clear_bit(DEVICE_BUSY_BIT, state->flags); |
| 2585 | } |
| 2586 | mutex_unlock(&state->dev_mutex); |
| 2587 | wake_up_interruptible(&state->dev_busyq); |
| 2588 | |
| 2589 | return ret; |
| 2590 | } |
| 2591 | |
| 2592 | static ssize_t a6_generic_show(struct device *dev, struct device_attribute *attr, char *buf) |
| 2593 | { |
| 2594 | int32_t ret = 0, i = 0; |
| 2595 | uint8_t vals[id_size]; |
| 2596 | struct a6_register_desc* reg_desc; |
| 2597 | struct i2c_client *client = to_i2c_client(dev); |
| 2598 | struct a6_device_state* state = i2c_get_clientdata(client); |
| 2599 | |
| 2600 | ret = a6_get_reg_vals(dev, attr, vals, id_size); |
| 2601 | |
| 2602 | if (ret < 0) return ret; |
| 2603 | |
| 2604 | reg_desc = container_of(attr, struct a6_register_desc, dev_attr); |
| 2605 | |
| 2606 | if (reg_desc->format) { |
| 2607 | ret = reg_desc->format(state, vals, buf, PAGE_SIZE); |
| 2608 | } |
| 2609 | else { |
| 2610 | /* if output restricted to 2 8-bit values, show as int16_t |
| 2611 | (common case of msb+lsb retrieval) */ |
| 2612 | if (2 == reg_desc->num_ids) { |
| 2613 | ret = scnprintf(buf, PAGE_SIZE, "%d\n", *(int16_t*)vals); |
| 2614 | } |
| 2615 | /* if output > or < 2 8-bit values, show as |
| 2616 | * space-delimited list of int8_t values |
| 2617 | */ |
| 2618 | else { |
| 2619 | i = ret = 0; |
| 2620 | while(i < reg_desc->num_ids) { |
| 2621 | ret += scnprintf(buf+ret, PAGE_SIZE-ret, "%d ", (int8_t)vals[i]); |
| 2622 | i++; |
| 2623 | } |
| 2624 | ret += scnprintf(buf+ret, PAGE_SIZE-ret, "\n"); |
| 2625 | } |
| 2626 | |
| 2627 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "Buffer: %s\n", buf); |
| 2628 | } |
| 2629 | |
| 2630 | #ifdef A6_DEBUG |
| 2631 | { |
| 2632 | uint8_t d_ids[reg_desc->num_ids * (4+2+1) + 1]; |
| 2633 | uint8_t d_vals[reg_desc->num_ids * (2+2+1) + 1]; |
| 2634 | int32_t i = 0, ret_ids = 0, ret_vals = 0; |
| 2635 | |
| 2636 | while (i < reg_desc->num_ids) { |
| 2637 | ret_ids += sprintf(d_ids+ret_ids, "0x%04x ", reg_desc->id[i]); |
| 2638 | ret_vals += sprintf(d_vals+ret_vals, "0x%02x ", vals[i]); |
| 2639 | i++; |
| 2640 | } |
| 2641 | |
| 2642 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_INFO, |
| 2643 | "showing reg name: %s, num_ids: %d, ids: %s, vals: %s\n", |
| 2644 | reg_desc->debug_name, reg_desc->num_ids, d_ids, d_vals); |
| 2645 | } |
| 2646 | #endif |
| 2647 | |
| 2648 | return ret; |
| 2649 | } |
| 2650 | |
| 2651 | static ssize_t a6_reg_get(struct device *dev, unsigned regnum, void *buf) |
| 2652 | { |
| 2653 | int32_t ret = 0; |
| 2654 | uint8_t vals[id_size]; |
| 2655 | struct i2c_client *client = to_i2c_client(dev); |
| 2656 | struct a6_device_state* state = i2c_get_clientdata(client); |
| 2657 | struct device_attribute *attr = &a6_register_desc_arr[regnum].dev_attr; |
| 2658 | int32_t rsense = (int32_t)state->cached_rsense_val; |
| 2659 | |
| 2660 | ret = a6_get_reg_vals(dev, attr, vals, id_size); |
| 2661 | |
| 2662 | if (ret < 0) { |
| 2663 | printk(KERN_ERR "%s: a6_get_reg_vals failed for regnum %u\n", |
| 2664 | __func__, regnum); |
| 2665 | return ret; |
| 2666 | } |
| 2667 | |
| 2668 | ret = 0; |
| 2669 | |
| 2670 | switch (regnum) { |
| 2671 | case A6_REG_TS2_I2C_FLAGS_2: |
| 2672 | { |
| 2673 | uint32_t *out_val = (uint32_t*)buf; |
| 2674 | *out_val = *vals; |
| 2675 | } |
| 2676 | break; |
| 2677 | case A6_REG_TS2_I2C_BAT_RARC: |
| 2678 | { |
| 2679 | int32_t *out_val = (int32_t*)buf; |
| 2680 | *out_val = *vals; |
| 2681 | } |
| 2682 | break; |
| 2683 | case A6_REG_TS2_I2C_BAT_AVG_CUR_LSB_MSB: |
| 2684 | case A6_REG_TS2_I2C_BAT_CUR_LSB_MSB: |
| 2685 | { |
| 2686 | int32_t *out_val = (int32_t*)buf; |
| 2687 | *out_val = *(int16_t*)vals; |
| 2688 | *out_val = (*out_val * 3125) / 2 / rsense; |
| 2689 | } |
| 2690 | break; |
| 2691 | case A6_REG_TS2_I2C_BAT_VOLT_LSB_MSB: |
| 2692 | { |
| 2693 | int32_t *out_val = (int32_t*)buf; |
| 2694 | *out_val = *(int16_t*)vals; |
| 2695 | *out_val = (*out_val >> 5) * 4800; |
| 2696 | } |
| 2697 | break; |
| 2698 | case A6_REG_TS2_I2C_BAT_FULL40_LSB_MSB: |
| 2699 | case A6_REG_TS2_I2C_BAT_COULOMB_LSB_MSB: |
| 2700 | { |
| 2701 | int32_t *out_val = (int32_t*)buf; |
| 2702 | *out_val = *(int16_t*)vals; |
| 2703 | *out_val = (*out_val * 6250) / rsense; |
| 2704 | } |
| 2705 | break; |
| 2706 | case A6_REG_TS2_I2C_BAT_TEMP_LSB_MSB: |
| 2707 | { |
| 2708 | int32_t *out_val = (int32_t*)buf; |
| 2709 | int8_t temp_val = ((int8_t*)vals)[1]; |
| 2710 | *out_val = temp_val * 10; |
| 2711 | } |
| 2712 | break; |
| 2713 | default: |
| 2714 | { |
| 2715 | printk(KERN_ERR "%s: Invalid register %u\n", __func__, regnum); |
| 2716 | ret = -EINVAL; |
| 2717 | } |
| 2718 | } |
| 2719 | |
| 2720 | return ret; |
| 2721 | } |
| 2722 | |
| 2723 | // constraints: |
| 2724 | // * multi-valued stores must have individual values delimited by whitespace |
| 2725 | // * multi-valued stores have individual values constrained to reg size (8-bit) |
| 2726 | // * single-valued stores can specify 16-bit values to update two regs (msb+lsb) |
| 2727 | // * value count must exactly match for multi-values stores |
| 2728 | // * value-count for single value stores may be one less than the reg count specified. |
| 2729 | static ssize_t a6_generic_store(struct device *dev, struct device_attribute *attr, const char *buf, |
| 2730 | size_t count) |
| 2731 | { |
| 2732 | struct i2c_client *client = to_i2c_client(dev); |
| 2733 | int32_t ret = 0, num_ids, val_cnt, i; |
| 2734 | uint32_t val; |
| 2735 | char *endp = NULL, *bufp; |
| 2736 | uint16_t parsed_vals[id_size]; |
| 2737 | uint8_t in_vals[id_size]; |
| 2738 | struct a6_register_desc* reg_desc; |
| 2739 | struct a6_device_state* state = i2c_get_clientdata(client); |
| 2740 | |
| 2741 | // critsec for manipulating flags |
| 2742 | ret = mutex_lock_interruptible(&state->dev_mutex); |
| 2743 | if (ret) { |
| 2744 | printk(KERN_ERR "%s: mutex_lock_interruptible interrupted(1)\n", __func__); |
| 2745 | return -ERESTARTSYS; |
| 2746 | } |
| 2747 | |
| 2748 | // are we busy? |
| 2749 | while (test_and_set_bit(DEVICE_BUSY_BIT, state->flags)) { |
| 2750 | // yes: are we in bootload phase? |
| 2751 | if (!test_bit(BOOTLOAD_ACTIVE_BIT, state->flags)) { |
| 2752 | // no: so go ahead and allow concurrent i2c ops (these are |
| 2753 | // synchronized separately to allow priority based execution). |
| 2754 | break; |
| 2755 | } |
| 2756 | |
| 2757 | // in bootload phase: get on a waitq |
| 2758 | mutex_unlock(&state->dev_mutex); |
| 2759 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: about to wait for device non-busy...\n", __func__); |
| 2760 | |
| 2761 | // bootload bit set? wait to be cleared (at least 5 mins: in jiffies) |
| 2762 | ret = wait_event_interruptible_timeout(state->dev_busyq, |
| 2763 | !test_bit(BOOTLOAD_ACTIVE_BIT, state->flags), 300*HZ); |
| 2764 | if (!ret) { |
| 2765 | printk(KERN_ERR "%s: wait on device busy timed-out/interrupted\n", __func__); |
| 2766 | // reset busy state |
| 2767 | clear_bit(DEVICE_BUSY_BIT, state->flags); |
| 2768 | // and continue... |
| 2769 | } |
| 2770 | |
| 2771 | // we're about to manipulate flags again: acquire critsec |
| 2772 | ret = mutex_lock_interruptible(&state->dev_mutex); |
| 2773 | if (ret) { |
| 2774 | printk(KERN_ERR "%s: mutex_lock_interruptible interrupted(2)\n", __func__); |
| 2775 | return -ERESTARTSYS; |
| 2776 | } |
| 2777 | } |
| 2778 | |
| 2779 | // increment busy refcount |
| 2780 | state->busy_count++; |
| 2781 | // done with flags: exit critsec |
| 2782 | mutex_unlock(&state->dev_mutex); |
| 2783 | |
| 2784 | reg_desc = container_of(attr, struct a6_register_desc, dev_attr); |
| 2785 | num_ids = reg_desc->num_ids; |
| 2786 | |
| 2787 | if (reg_desc->r_format) |
| 2788 | { |
| 2789 | ret = reg_desc->r_format(state, buf, in_vals, count); |
| 2790 | } |
| 2791 | else |
| 2792 | { |
| 2793 | bufp = (char*)buf; |
| 2794 | val_cnt = 0; |
| 2795 | do { |
| 2796 | // let strtoul perform base determination (handles '0x' and '0' prefixes) ... |
| 2797 | val = (uint16_t)simple_strtoul(bufp, &endp, 0); |
| 2798 | // each space-delimited write unit is capped at 16 bits... |
| 2799 | if (val > 0xffff) { |
| 2800 | ret = -EINVAL; |
| 2801 | goto err0; |
| 2802 | } |
| 2803 | |
| 2804 | parsed_vals[val_cnt] = val; |
| 2805 | |
| 2806 | // skip whitespace |
| 2807 | while (*endp && isspace(*endp)) { |
| 2808 | endp++; |
| 2809 | } |
| 2810 | // reset for next iteration |
| 2811 | bufp = endp; |
| 2812 | } while ((++val_cnt < num_ids) && ((endp - buf) < count)); |
| 2813 | |
| 2814 | // three levels of value count calidation: |
| 2815 | // * if extra values: fail |
| 2816 | // * if multiple values and does not match reg count specified: fail |
| 2817 | // * if single value and reg count > 2: fail |
| 2818 | if (*endp) { |
| 2819 | ret = -EINVAL; |
| 2820 | goto err0; |
| 2821 | } |
| 2822 | else if (val_cnt > 1) { |
| 2823 | if (val_cnt != num_ids) { |
| 2824 | ret = -EINVAL; |
| 2825 | goto err0; |
| 2826 | } |
| 2827 | } |
| 2828 | else { |
| 2829 | if (num_ids > 2) { |
| 2830 | ret = -EINVAL; |
| 2831 | goto err0; |
| 2832 | } |
| 2833 | } |
| 2834 | |
| 2835 | // if multi-valued store or single-valued store to one reg: we constrain each |
| 2836 | // value to reg size (8 bits) |
| 2837 | if ((val_cnt > 1) || (1 == num_ids)) { |
| 2838 | for (i = 0; i < val_cnt; i++) { |
| 2839 | if (parsed_vals[i] > 0xff) { |
| 2840 | ret = -EINVAL; |
| 2841 | goto err0; |
| 2842 | } |
| 2843 | |
| 2844 | in_vals[i] = parsed_vals[i]; |
| 2845 | } |
| 2846 | } |
| 2847 | // single-valued store can be 8-bit or 16-bit (for msb+lsb) |
| 2848 | else { |
| 2849 | ((uint16_t*)in_vals)[0] = ((uint16_t*)parsed_vals)[0]; |
| 2850 | } |
| 2851 | } |
| 2852 | |
| 2853 | #ifdef A6_DEBUG |
| 2854 | { |
| 2855 | uint8_t d_ids[reg_desc->num_ids * (4+2+1)]; |
| 2856 | uint8_t d_vals[reg_desc->num_ids * (2+2+1)]; |
| 2857 | int32_t i = 0, ret_ids = 0, ret_vals = 0; |
| 2858 | |
| 2859 | while (i < reg_desc->num_ids) { |
| 2860 | ret_ids = sprintf(d_ids+ret_ids, "0x%04x ", reg_desc->id[i]); |
| 2861 | ret_vals = sprintf(d_vals+ret_vals, "0x%02x ", in_vals[i]); |
| 2862 | i++; |
| 2863 | } |
| 2864 | |
| 2865 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, |
| 2866 | "storing reg name: %s, num_ids: %d, ids: %s, vals: %s\n", |
| 2867 | reg_desc->debug_name, reg_desc->num_ids, d_ids, d_vals); |
| 2868 | } |
| 2869 | #endif |
| 2870 | |
| 2871 | ret = a6_i2c_write_reg(client, reg_desc->id, num_ids, in_vals); |
| 2872 | if (ret < 0) { |
| 2873 | goto err0; |
| 2874 | } |
| 2875 | |
| 2876 | ret = count; |
| 2877 | |
| 2878 | err0: |
| 2879 | // reset busy state |
| 2880 | mutex_lock(&state->dev_mutex); |
| 2881 | // decrement busy refcount |
| 2882 | if (state->busy_count) { |
| 2883 | state->busy_count--; |
| 2884 | } |
| 2885 | if (!state->busy_count) { |
| 2886 | clear_bit(DEVICE_BUSY_BIT, state->flags); |
| 2887 | } |
| 2888 | mutex_unlock(&state->dev_mutex); |
| 2889 | wake_up_interruptible(&state->dev_busyq); |
| 2890 | |
| 2891 | return ret; |
| 2892 | } |
| 2893 | |
| 2894 | enum { |
| 2895 | ACTIVATE_EXTRACT, |
| 2896 | NONE |
| 2897 | }; |
| 2898 | |
| 2899 | static ssize_t a6_val_cksum_show(struct device *dev, struct device_attribute *attr, char *buf) |
| 2900 | { |
| 2901 | struct i2c_client *client = to_i2c_client(dev); |
| 2902 | int32_t rc = 0, reloop = 0, failed = 0; |
| 2903 | struct a6_device_state* state = i2c_get_clientdata(client); |
| 2904 | uint16_t cksum1, cksum2, cksum_cycles, cksum_errors; |
| 2905 | struct a6_register_desc *reg_desc; |
| 2906 | uint8_t vals[id_size]; |
| 2907 | |
| 2908 | |
| 2909 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: enter\n", __func__); |
| 2910 | |
| 2911 | // critsec for manipulating flags |
| 2912 | rc = mutex_lock_interruptible(&state->dev_mutex); |
| 2913 | if (rc) { |
| 2914 | printk(KERN_ERR "%s: mutex_lock interrupted\n", __func__); |
| 2915 | return -EIO; |
| 2916 | } |
| 2917 | |
| 2918 | // are we busy? |
| 2919 | while (test_and_set_bit(DEVICE_BUSY_BIT, state->flags)) { |
| 2920 | // yes: get on a waitq |
| 2921 | mutex_unlock(&state->dev_mutex); |
| 2922 | |
| 2923 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: about to wait for device non-busy...\n", __func__); |
| 2924 | |
| 2925 | // busy bit set? wait to be cleared (at least 5 minutes: in jiffies) |
| 2926 | rc = wait_event_interruptible_timeout(state->dev_busyq, |
| 2927 | !test_bit(DEVICE_BUSY_BIT, state->flags), 300*HZ); |
| 2928 | if (!rc) { |
| 2929 | printk(KERN_ERR "%s: wait on device busy timed-out/interrupted\n", __func__); |
| 2930 | // reset busy state |
| 2931 | clear_bit(DEVICE_BUSY_BIT, state->flags); |
| 2932 | // and continue... |
| 2933 | } |
| 2934 | |
| 2935 | // we're about to manipulate flags again: acquire critsec |
| 2936 | rc = mutex_lock_interruptible(&state->dev_mutex); |
| 2937 | if (rc) { |
| 2938 | printk(KERN_ERR "%s: mutex_lock interrupted(2)\n", __func__); |
| 2939 | goto err0; |
| 2940 | } |
| 2941 | } |
| 2942 | |
| 2943 | rc = test_and_set_bit(BOOTLOAD_ACTIVE_BIT, state->flags); |
| 2944 | ASSERT(!rc); |
| 2945 | |
| 2946 | // we're done with flags: exit critsec |
| 2947 | mutex_unlock(&state->dev_mutex); |
| 2948 | |
| 2949 | do { |
| 2950 | /* write command (cksum1) */ |
| 2951 | reg_desc = &a6_register_desc_arr[35]; |
| 2952 | vals[0] = TS2_I2C_COMMAND_FRAM_CHECKSUM_READ_1; |
| 2953 | rc = a6_i2c_write_reg(state->i2c_dev, reg_desc->id, reg_desc->num_ids, vals); |
| 2954 | if (rc < 0) { |
| 2955 | printk(KERN_ERR "%s: error writing reg: %s, id: 0x%x\n", |
| 2956 | __func__, reg_desc->debug_name, reg_desc->id[0]); |
| 2957 | break; |
| 2958 | } |
| 2959 | |
| 2960 | /* read cksum1 */ |
| 2961 | reg_desc = &a6_register_desc_arr[80]; |
| 2962 | memset(vals, 0, sizeof(vals)); |
| 2963 | rc = a6_i2c_read_reg(state->i2c_dev, reg_desc->id, reg_desc->num_ids, vals); |
| 2964 | if (rc < 0) { |
| 2965 | printk(KERN_ERR "%s: error reading reg: %s, ids: 0x%x 0x%x\n", |
| 2966 | __func__, reg_desc->debug_name, reg_desc->id[0], reg_desc->id[1]); |
| 2967 | break; |
| 2968 | } |
| 2969 | cksum1 = vals[0] | vals[1] << 8; |
| 2970 | |
| 2971 | /* read cksum cycle counter */ |
| 2972 | reg_desc = &a6_register_desc_arr[81]; |
| 2973 | memset(vals, 0, sizeof(vals)); |
| 2974 | rc = a6_i2c_read_reg(state->i2c_dev, reg_desc->id, reg_desc->num_ids, vals); |
| 2975 | if (rc < 0) { |
| 2976 | printk(KERN_ERR "%s: error reading reg: %s, ids: 0x%x 0x%x\n", |
| 2977 | __func__, reg_desc->debug_name, reg_desc->id[0], reg_desc->id[1]); |
| 2978 | break; |
| 2979 | } |
| 2980 | cksum_cycles = vals[0] | vals[1] << 8; |
| 2981 | |
| 2982 | /* write command (cksum2) */ |
| 2983 | reg_desc = &a6_register_desc_arr[35]; |
| 2984 | vals[0] = TS2_I2C_COMMAND_FRAM_CHECKSUM_READ_2; |
| 2985 | rc = a6_i2c_write_reg(state->i2c_dev, reg_desc->id, reg_desc->num_ids, vals); |
| 2986 | if (rc < 0) { |
| 2987 | printk(KERN_ERR "%s: error writing reg: %s, id: 0x%x\n", |
| 2988 | __func__, reg_desc->debug_name, reg_desc->id[0]); |
| 2989 | break; |
| 2990 | } |
| 2991 | |
| 2992 | /* read cksum2 */ |
| 2993 | reg_desc = &a6_register_desc_arr[80]; |
| 2994 | memset(vals, 0, sizeof(vals)); |
| 2995 | rc = a6_i2c_read_reg(state->i2c_dev, reg_desc->id, reg_desc->num_ids, vals); |
| 2996 | if (rc < 0) { |
| 2997 | printk(KERN_ERR "%s: error reading reg: %s, ids: 0x%x 0x%x\n", |
| 2998 | __func__, reg_desc->debug_name, reg_desc->id[0], reg_desc->id[1]); |
| 2999 | break; |
| 3000 | } |
| 3001 | cksum2 = vals[0] | vals[1] << 8; |
| 3002 | |
| 3003 | /* read cksum error counter */ |
| 3004 | reg_desc = &a6_register_desc_arr[81]; |
| 3005 | memset(vals, 0, sizeof(vals)); |
| 3006 | rc = a6_i2c_read_reg(state->i2c_dev, reg_desc->id, reg_desc->num_ids, vals); |
| 3007 | if (rc < 0) { |
| 3008 | printk(KERN_ERR "%s: error reading reg: %s, ids: 0x%x 0x%x\n", |
| 3009 | __func__, reg_desc->debug_name, reg_desc->id[0], reg_desc->id[1]); |
| 3010 | break; |
| 3011 | } |
| 3012 | cksum_errors = vals[0] | vals[1] << 8; |
| 3013 | |
| 3014 | /* validate cksum */ |
| 3015 | if (reloop || !cksum1 || !cksum2 || (cksum1 != cksum2)) { |
| 3016 | printk(KERN_ERR "A6 checksum (%s) validation failure:\n" |
| 3017 | "cksum1: 0x%02hx; cksum2: 0x%02hx; cksum_cycles: 0x%02hx;" |
| 3018 | " cksum_errors: 0x%02hx\n", |
| 3019 | (!reloop) ? "first-stage" : "second-stage", |
| 3020 | cksum1, cksum2, cksum_cycles, cksum_errors); |
| 3021 | if (reloop) { |
| 3022 | reloop--; |
| 3023 | failed = 1; |
| 3024 | } |
| 3025 | else { |
| 3026 | reloop++; |
| 3027 | } |
| 3028 | } |
| 3029 | } while (reloop); |
| 3030 | |
| 3031 | if (rc < 0) { |
| 3032 | printk(KERN_ERR "%s: checksum retrieval enountered i2c errors: " |
| 3033 | "fallback to sbw(jtag) access.\n", __func__); |
| 3034 | get_checksum_data_sbw((struct a6_sbw_interface*)state->plat_data->sbw_ops, &cksum1, |
| 3035 | &cksum2, &cksum_cycles, &cksum_errors); |
| 3036 | } |
| 3037 | |
| 3038 | /* validate cksum */ |
| 3039 | if (failed || !cksum1 || !cksum2 || (cksum1 != cksum2)) { |
| 3040 | printk(KERN_ERR "A6 checksum validation failed:\n" |
| 3041 | "cksum1: 0x%02hx; cksum2: 0x%02hx; cksum_cycles: 0x%02hx;" |
| 3042 | " cksum_errors: 0x%02hx\n", |
| 3043 | cksum1, cksum2, cksum_cycles, cksum_errors); |
| 3044 | rc = snprintf(buf, PAGE_SIZE, "%d\n", 0); |
| 3045 | } |
| 3046 | else { |
| 3047 | rc = snprintf(buf, PAGE_SIZE, "%d\n", 1); |
| 3048 | } |
| 3049 | |
| 3050 | err0: |
| 3051 | mutex_lock(&state->dev_mutex); |
| 3052 | clear_bit(BOOTLOAD_ACTIVE_BIT, state->flags); |
| 3053 | clear_bit(DEVICE_BUSY_BIT, state->flags); |
| 3054 | mutex_unlock(&state->dev_mutex); |
| 3055 | wake_up_interruptible(&state->dev_busyq); |
| 3056 | |
| 3057 | return rc; |
| 3058 | } |
| 3059 | |
| 3060 | |
| 3061 | static char* activation_strlist[] = { |
| 3062 | [ACTIVATE_EXTRACT] = "extract", |
| 3063 | [NONE] = "none" |
| 3064 | }; |
| 3065 | |
| 3066 | static ssize_t a6_diag_store(struct device *dev, struct device_attribute *attr, const char *buf, |
| 3067 | size_t count) |
| 3068 | { |
| 3069 | struct i2c_client *client = to_i2c_client(dev); |
| 3070 | int32_t rc = 0, ret_val, action_i = 0; |
| 3071 | struct a6_device_state* state = i2c_get_clientdata(client); |
| 3072 | bool skip = false; |
| 3073 | |
| 3074 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: enter\n", __func__); |
| 3075 | |
| 3076 | action_i = (sizeof(activation_strlist)/sizeof(char*)); |
| 3077 | do { |
| 3078 | if (0 == strncmp(buf, activation_strlist[action_i-1], |
| 3079 | strlen(activation_strlist[action_i-1]))) { |
| 3080 | break; |
| 3081 | } |
| 3082 | } while(action_i--); |
| 3083 | |
| 3084 | if (!action_i) { |
| 3085 | return -EINVAL; |
| 3086 | } |
| 3087 | |
| 3088 | // store the action index |
| 3089 | action_i--; |
| 3090 | |
| 3091 | // critsec for manipulating flags |
| 3092 | rc = mutex_lock_interruptible(&state->dev_mutex); |
| 3093 | if (rc) { |
| 3094 | printk(KERN_ERR "%s: mutex_lock interrupted\n", __func__); |
| 3095 | return -EIO; |
| 3096 | } |
| 3097 | |
| 3098 | // are we busy? |
| 3099 | while (test_and_set_bit(DEVICE_BUSY_BIT, state->flags)) { |
| 3100 | // yes: get on a waitq |
| 3101 | mutex_unlock(&state->dev_mutex); |
| 3102 | |
| 3103 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: about to wait for device non-busy...\n", __func__); |
| 3104 | |
| 3105 | // busy bit set? wait to be cleared (at least 5 minutes: in jiffies) |
| 3106 | rc = wait_event_interruptible_timeout(state->dev_busyq, |
| 3107 | !test_bit(DEVICE_BUSY_BIT, state->flags), 300*HZ); |
| 3108 | if (!rc) { |
| 3109 | printk(KERN_ERR "%s: wait on device busy timed-out/interrupted\n", __func__); |
| 3110 | // reset busy state |
| 3111 | clear_bit(DEVICE_BUSY_BIT, state->flags); |
| 3112 | // and continue... |
| 3113 | } |
| 3114 | |
| 3115 | // we're about to manipulate flags again: acquire critsec |
| 3116 | rc = mutex_lock_interruptible(&state->dev_mutex); |
| 3117 | if (rc) { |
| 3118 | printk(KERN_ERR "%s: mutex_lock interrupted(2)\n", __func__); |
| 3119 | goto err0; |
| 3120 | } |
| 3121 | } |
| 3122 | |
| 3123 | if (ACTIVATE_EXTRACT == action_i) { |
| 3124 | if (test_bit(EXTRACT_INITIATED, state->flags)) { |
| 3125 | skip = true; |
| 3126 | } |
| 3127 | else { |
| 3128 | ret_val = test_and_set_bit(BOOTLOAD_ACTIVE_BIT, state->flags); |
| 3129 | ASSERT(!ret_val); |
| 3130 | ret_val = test_and_set_bit(EXTRACT_INITIATED, state->flags); |
| 3131 | ASSERT(!ret_val); |
| 3132 | } |
| 3133 | } |
| 3134 | else if (NONE == action_i) { |
| 3135 | if (!(test_bit(EXTRACT_INITIATED, state->flags))) { |
| 3136 | skip = true; |
| 3137 | } |
| 3138 | } |
| 3139 | else { |
| 3140 | // invalid |
| 3141 | } |
| 3142 | |
| 3143 | // we're done with flags: exit critsec |
| 3144 | mutex_unlock(&state->dev_mutex); |
| 3145 | |
| 3146 | if (true == skip) goto err0; |
| 3147 | |
| 3148 | if (ACTIVATE_EXTRACT == action_i) { |
| 3149 | // reset force-wake state to always force wake on first i2c txn |
| 3150 | // after pmem extraction |
| 3151 | del_timer(&state->a6_force_wake_timer); |
| 3152 | mutex_lock(&state->a6_force_wake_mutex); |
| 3153 | if (test_bit(CAP_PERIODIC_WAKE, state->flags)) { |
| 3154 | clear_bit(FORCE_WAKE_ACTIVE_BIT, state->flags); |
| 3155 | } |
| 3156 | mutex_unlock(&state->a6_force_wake_mutex); |
| 3157 | |
| 3158 | // start pmem extract |
| 3159 | printk(KERN_ERR "%s: starting ttf_extract.\n", __func__); |
| 3160 | rc = ttf_extract_fw_sbw((struct a6_sbw_interface*)state->plat_data->sbw_ops); |
| 3161 | if (rc) { |
| 3162 | printk(KERN_ERR "Failed to ttf_extract a6 pmem.\n"); |
| 3163 | goto err0; |
| 3164 | } |
| 3165 | else { |
| 3166 | printk(KERN_ERR "A6: Completed ttf_extract a6 pmem.\n"); |
| 3167 | // wait for the A6 to boot... |
| 3168 | msleep(3000); |
| 3169 | // - re-init state |
| 3170 | // - if init fails: ignore |
| 3171 | a6_init_state(state->i2c_dev); |
| 3172 | } |
| 3173 | } |
| 3174 | else if (NONE == action_i) { |
| 3175 | printk(KERN_ERR "%s: clearing ttf_extract cache.\n", __func__); |
| 3176 | rc = ttf_extract_cache_clear(); |
| 3177 | } |
| 3178 | else { |
| 3179 | // invalid |
| 3180 | } |
| 3181 | |
| 3182 | err0: |
| 3183 | mutex_lock(&state->dev_mutex); |
| 3184 | if (false == skip) { |
| 3185 | if (rc || NONE == action_i) { |
| 3186 | if (test_bit(EXTRACT_INITIATED, state->flags)) { |
| 3187 | clear_bit(EXTRACT_INITIATED, state->flags); |
| 3188 | } |
| 3189 | } |
| 3190 | if (test_bit(BOOTLOAD_ACTIVE_BIT, state->flags)) { |
| 3191 | clear_bit(BOOTLOAD_ACTIVE_BIT, state->flags); |
| 3192 | } |
| 3193 | } |
| 3194 | clear_bit(DEVICE_BUSY_BIT, state->flags); |
| 3195 | mutex_unlock(&state->dev_mutex); |
| 3196 | wake_up_interruptible(&state->dev_busyq); |
| 3197 | |
| 3198 | return (rc ? rc : count); |
| 3199 | } |
| 3200 | |
| 3201 | static ssize_t a6_diag_show(struct device *dev, struct device_attribute *attr, char *buf) |
| 3202 | { |
| 3203 | struct i2c_client *client = to_i2c_client(dev); |
| 3204 | int32_t rc = 0; |
| 3205 | struct a6_device_state* state = i2c_get_clientdata(client); |
| 3206 | |
| 3207 | |
| 3208 | mutex_lock(&state->dev_mutex); |
| 3209 | if (test_bit(EXTRACT_INITIATED, state->flags)) { |
| 3210 | rc = snprintf(buf, PAGE_SIZE, "%s\n", activation_strlist[ACTIVATE_EXTRACT]); |
| 3211 | } |
| 3212 | mutex_unlock(&state->dev_mutex); |
| 3213 | |
| 3214 | return rc; |
| 3215 | } |
| 3216 | |
| 3217 | int32_t a6_create_dev_files(struct a6_device_state* state, struct device* dev) |
| 3218 | { |
| 3219 | int32_t rc = 0, reg_cnt = sizeof(a6_register_desc_arr)/sizeof(struct a6_register_desc); |
| 3220 | int32_t idx = 0, cust_idx = 0; |
| 3221 | |
| 3222 | for (idx = 0; idx < reg_cnt; idx++) { |
| 3223 | rc = device_create_file(dev, &a6_register_desc_arr[idx].dev_attr); |
| 3224 | if (rc < 0) { |
| 3225 | printk(KERN_ERR "%s: failed to create dev_attr file for %s.\n", |
| 3226 | __func__, a6_register_desc_arr[idx].dev_attr.attr.name); |
| 3227 | goto err0; |
| 3228 | } |
| 3229 | } |
| 3230 | |
| 3231 | reg_cnt = sizeof(custom_devattr)/sizeof(struct device_attribute); |
| 3232 | for (cust_idx = 0; cust_idx < reg_cnt; cust_idx++) { |
| 3233 | rc = device_create_file(dev, &custom_devattr[cust_idx]); |
| 3234 | if (rc < 0) { |
| 3235 | printk(KERN_ERR "%s: failed to create dev_attr file for %s.\n", |
| 3236 | __func__, custom_devattr[cust_idx].attr.name); |
| 3237 | goto err0; |
| 3238 | } |
| 3239 | } |
| 3240 | |
| 3241 | rc = sysfs_create_link(&state->mdev.this_device->kobj, &dev->kobj, "regs"); |
| 3242 | if (rc) { |
| 3243 | printk(KERN_ERR "%s: error in creating symlink.\n", __func__); |
| 3244 | } |
| 3245 | |
| 3246 | return 0; |
| 3247 | |
| 3248 | err0: |
| 3249 | // error: cleanup files already created. |
| 3250 | for (idx--; idx >= 0; idx--) { |
| 3251 | device_remove_file(dev, &a6_register_desc_arr[idx].dev_attr); |
| 3252 | } |
| 3253 | for (cust_idx--; cust_idx >= 0; cust_idx--) { |
| 3254 | device_remove_file(dev, &custom_devattr[cust_idx]); |
| 3255 | } |
| 3256 | return rc; |
| 3257 | |
| 3258 | } |
| 3259 | |
| 3260 | void a6_remove_dev_files(struct a6_device_state* state, struct device* dev) |
| 3261 | { |
| 3262 | int32_t reg_cnt = sizeof(a6_register_desc_arr)/sizeof(struct a6_register_desc); |
| 3263 | int32_t idx; |
| 3264 | |
| 3265 | for (idx = 0; idx < reg_cnt; idx++) { |
| 3266 | device_remove_file(dev, &a6_register_desc_arr[idx].dev_attr); |
| 3267 | } |
| 3268 | |
| 3269 | reg_cnt = sizeof(custom_devattr)/sizeof(struct device_attribute); |
| 3270 | for (idx = 0; idx < reg_cnt; idx++) { |
| 3271 | device_remove_file(dev, &custom_devattr[idx]); |
| 3272 | } |
| 3273 | } |
| 3274 | |
| 3275 | typedef enum { |
| 3276 | A6_PROGAM_AND_VERIFY_FW = 1, |
| 3277 | A6_VERIFY_FW |
| 3278 | } a6_pgm_thread_op; |
| 3279 | |
| 3280 | struct a6_pgm_thread_params { |
| 3281 | struct a6_sbw_interface* sbw_ops; |
| 3282 | uint32_t buffer_p; |
| 3283 | int32_t ret_code; |
| 3284 | a6_pgm_thread_op op; |
| 3285 | struct completion a6_flash_thread_nice; |
| 3286 | struct completion a6_flash_thread_exit; |
| 3287 | }; |
| 3288 | |
| 3289 | int a6_pgm_thread_fn(void* param) |
| 3290 | { |
| 3291 | int32_t ret_val; |
| 3292 | |
| 3293 | struct a6_pgm_thread_params* t_p = (struct a6_pgm_thread_params*)param; |
| 3294 | |
| 3295 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: buffer_p val: 0x%x\n", __func__, t_p->buffer_p); |
| 3296 | |
| 3297 | // wait for parent re-nice completion... |
| 3298 | ret_val = wait_for_completion_interruptible(&t_p->a6_flash_thread_nice); |
| 3299 | if (-ERESTARTSYS == ret_val) { |
| 3300 | printk(KERN_ERR "A6: waiting for parent re-nice completion interrupted.\n"); |
| 3301 | t_p->ret_code = -EINTR; |
| 3302 | goto err0; |
| 3303 | } |
| 3304 | |
| 3305 | if (A6_PROGAM_AND_VERIFY_FW == t_p->op) { |
| 3306 | ret_val = program_device_sbw(t_p->sbw_ops, t_p->buffer_p); |
| 3307 | } |
| 3308 | else { |
| 3309 | ret_val = verify_device_sbw(t_p->sbw_ops, t_p->buffer_p); |
| 3310 | // ignore error returns for the moment as the verification fn |
| 3311 | // does not differentiate between code and r/w data sections. |
| 3312 | // also, the fw section allocation changes fairly dynamically |
| 3313 | // between fw drops and we don't yet support parameterizing the |
| 3314 | // section map for the verification code. |
| 3315 | ret_val = 0; |
| 3316 | } |
| 3317 | if (ret_val) { |
| 3318 | t_p->ret_code = -EINVAL; |
| 3319 | } |
| 3320 | |
| 3321 | // signal thread completion |
| 3322 | complete(&t_p->a6_flash_thread_exit); |
| 3323 | |
| 3324 | err0: |
| 3325 | return 0; |
| 3326 | } |
| 3327 | |
| 3328 | static long a6_ioctl(struct file *file, |
| 3329 | unsigned int cmd, unsigned long args) |
| 3330 | { |
| 3331 | int32_t rc = 0; |
| 3332 | struct a6_device_state* state = file->private_data; |
| 3333 | void* usr_ptr = (void*)args; |
| 3334 | //uint32_t usr_bytes = _IOC_SIZE(cmd); |
| 3335 | //uint32_t usr_val = 0x0; |
| 3336 | |
| 3337 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: cmd: %d\n", __func__, _IOC_NR(cmd)); |
| 3338 | |
| 3339 | // critsec for manipulating flags |
| 3340 | rc = mutex_lock_interruptible(&state->dev_mutex); |
| 3341 | if (rc) { |
| 3342 | printk(KERN_ERR "%s: mutex_lock interrupted(1)\n", __func__); |
| 3343 | return -ERESTARTSYS; |
| 3344 | } |
| 3345 | |
| 3346 | // are we busy? |
| 3347 | while (test_and_set_bit(DEVICE_BUSY_BIT, state->flags)) { |
| 3348 | // yes: get on a waitq |
| 3349 | mutex_unlock(&state->dev_mutex); |
| 3350 | |
| 3351 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: about to wait for device non-busy...\n", __func__); |
| 3352 | |
| 3353 | // busy bit set? wait to be cleared (at least 3 seconds: in jiffies) |
| 3354 | rc = wait_event_interruptible_timeout(state->dev_busyq, |
| 3355 | !test_bit(DEVICE_BUSY_BIT, state->flags), 3*HZ); |
| 3356 | if (!rc) { |
| 3357 | printk(KERN_ERR "%s: wait on device busy timed-out/interrupted\n", __func__); |
| 3358 | // reset busy state |
| 3359 | clear_bit(DEVICE_BUSY_BIT, state->flags); |
| 3360 | // and continue... |
| 3361 | } |
| 3362 | |
| 3363 | // we're about to manipulate flags again: acquire critsec |
| 3364 | rc = mutex_lock_interruptible(&state->dev_mutex); |
| 3365 | if (rc) { |
| 3366 | printk(KERN_ERR "%s: mutex_lock interrupted(2)\n", __func__); |
| 3367 | return -ERESTARTSYS; |
| 3368 | } |
| 3369 | } |
| 3370 | |
| 3371 | // bootload request: set flag in critsec |
| 3372 | if (A6_IOCTL_SET_FW_DATA == cmd || A6_IOCTL_VERIFY_FW_DATA == cmd) { |
| 3373 | int32_t ret_val; |
| 3374 | ret_val = test_and_set_bit(BOOTLOAD_ACTIVE_BIT, state->flags); |
| 3375 | ASSERT(!ret_val); |
| 3376 | } |
| 3377 | |
| 3378 | // we're done with flags: exit critsec |
| 3379 | mutex_unlock(&state->dev_mutex); |
| 3380 | |
| 3381 | switch (cmd) { |
| 3382 | case A6_IOCTL_SET_FW_DATA: |
| 3383 | case A6_IOCTL_VERIFY_FW_DATA: |
| 3384 | { |
| 3385 | uint8_t *buffer_p = NULL; |
| 3386 | uint32_t payload_size = 0; |
| 3387 | struct a6_sbw_interface* sbw_ops = |
| 3388 | (struct a6_sbw_interface*)state->plat_data->sbw_ops; |
| 3389 | uint8_t* a6_fw_buffer; |
| 3390 | struct task_struct* pgm_worker_task; |
| 3391 | pid_t pgm_worker_task_pid; |
| 3392 | struct a6_pgm_thread_params t_params; |
| 3393 | |
| 3394 | // reset force-wake state to always force wake on first i2c txn |
| 3395 | // after flashing/verification |
| 3396 | del_timer(&state->a6_force_wake_timer); |
| 3397 | mutex_lock(&state->a6_force_wake_mutex); |
| 3398 | if (test_bit(CAP_PERIODIC_WAKE, state->flags)) { |
| 3399 | clear_bit(FORCE_WAKE_ACTIVE_BIT, state->flags); |
| 3400 | } |
| 3401 | mutex_unlock(&state->a6_force_wake_mutex); |
| 3402 | |
| 3403 | // copy payload ptr from ioctl parameter |
| 3404 | if (copy_from_user(&buffer_p, usr_ptr, sizeof(buffer_p))) { |
| 3405 | rc = -EFAULT; |
| 3406 | break; |
| 3407 | } |
| 3408 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "buffer_p val: 0x%p\n", buffer_p); |
| 3409 | |
| 3410 | // copy payload size from ioctl parameter |
| 3411 | if (copy_from_user(&payload_size, (uint8_t*)usr_ptr + sizeof(uint32_t), sizeof(payload_size))) { |
| 3412 | rc = -EFAULT; |
| 3413 | break; |
| 3414 | } |
| 3415 | |
| 3416 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "payload_size: %d\n", payload_size); |
| 3417 | |
| 3418 | // alloc kernel buffer for payload |
| 3419 | a6_fw_buffer = (uint8_t*)kmalloc(payload_size, GFP_KERNEL); |
| 3420 | if (!a6_fw_buffer) { |
| 3421 | printk(KERN_ERR "A6: failed to allocate fw buffer.\n"); |
| 3422 | rc = -ENOMEM; |
| 3423 | break; |
| 3424 | } |
| 3425 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "fw buffer ptr_val: 0x%p\n", a6_fw_buffer); |
| 3426 | |
| 3427 | // copy-in payload data |
| 3428 | if (copy_from_user(a6_fw_buffer, buffer_p, payload_size)) { |
| 3429 | rc = -EFAULT; |
| 3430 | break; |
| 3431 | } |
| 3432 | |
| 3433 | printk(KERN_ERR "A6: Starting flashing sequence.\n"); |
| 3434 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "A6: parent task nice value: %d; pri: %d\n", |
| 3435 | task_nice(current), task_prio(current)); |
| 3436 | |
| 3437 | // initialize worker task params |
| 3438 | init_completion(&t_params.a6_flash_thread_nice); |
| 3439 | init_completion(&t_params.a6_flash_thread_exit); |
| 3440 | t_params.sbw_ops = sbw_ops; |
| 3441 | t_params.buffer_p = (uint32_t)a6_fw_buffer; |
| 3442 | t_params.ret_code = 0; |
| 3443 | t_params.op = (A6_IOCTL_SET_FW_DATA == cmd) ? |
| 3444 | A6_PROGAM_AND_VERIFY_FW : A6_VERIFY_FW; |
| 3445 | |
| 3446 | // create worker task... |
| 3447 | pgm_worker_task_pid = kernel_thread(a6_pgm_thread_fn, &t_params, |
| 3448 | CLONE_KERNEL); |
| 3449 | if (pgm_worker_task_pid < 0) { |
| 3450 | printk(KERN_ERR "A6: failed to create pgm worker task.\n"); |
| 3451 | rc = -EIO; |
| 3452 | break; |
| 3453 | } |
| 3454 | |
| 3455 | // retrieve worker task struct |
| 3456 | pgm_worker_task = get_pid_task(find_get_pid(pgm_worker_task_pid), PIDTYPE_PID); |
| 3457 | // re-nice worker task |
| 3458 | //set_user_nice(pgm_worker_task, 10); |
| 3459 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "A6: pgm worker task nice value: %d; pri: %d\n", |
| 3460 | task_nice(pgm_worker_task), task_prio(pgm_worker_task)); |
| 3461 | |
| 3462 | /* hold cpu at max freq before signaling worker thread to commence sbw */ |
| 3463 | #ifdef CONFIG_CPU_FREQ_GOV_ONDEMAND_TICKLE |
| 3464 | CPUFREQ_HOLD_CHECK(&state->cpufreq_hold_flag); |
| 3465 | #endif |
| 3466 | // signal re-nice completion... |
| 3467 | complete(&t_params.a6_flash_thread_nice); |
| 3468 | |
| 3469 | // wait for worker task-end completion... |
| 3470 | rc = wait_for_completion_interruptible(&t_params.a6_flash_thread_exit); |
| 3471 | /* unhold cpu */ |
| 3472 | #ifdef CONFIG_CPU_FREQ_GOV_ONDEMAND_TICKLE |
| 3473 | CPUFREQ_UNHOLD_CHECK(&state->cpufreq_hold_flag); |
| 3474 | #endif |
| 3475 | kfree(a6_fw_buffer); |
| 3476 | |
| 3477 | if (-ERESTARTSYS == rc) { |
| 3478 | printk(KERN_ERR "A6: waiting for pgm worker start interrupted.\n"); |
| 3479 | break; |
| 3480 | } |
| 3481 | |
| 3482 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "A6: pgm worker task exit code: %d\n", |
| 3483 | t_params.ret_code); |
| 3484 | if (t_params.ret_code) { |
| 3485 | printk(KERN_ERR "A6: Failed to completed flashing sequence. ret: %d\n", |
| 3486 | t_params.ret_code); |
| 3487 | // propagate error to caller... |
| 3488 | rc = t_params.ret_code; |
| 3489 | } |
| 3490 | else { |
| 3491 | printk(KERN_ERR "A6: Completed flashing sequence.\n"); |
| 3492 | // wait for the A6 to boot... |
| 3493 | msleep(3000); |
| 3494 | // - flashing fw forces a device power-up sequence: re-init state |
| 3495 | // - if init fails: treat as fw flash failure by returning rc |
| 3496 | rc = a6_init_state(state->i2c_dev); |
| 3497 | if (rc < 0) { |
| 3498 | printk(KERN_ERR "%s: failed to initialize, err: %d\n", A6_DRIVER, rc); |
| 3499 | } |
| 3500 | } |
| 3501 | |
| 3502 | mutex_lock(&state->dev_mutex); |
| 3503 | clear_bit(BOOTLOAD_ACTIVE_BIT, state->flags); |
| 3504 | mutex_unlock(&state->dev_mutex); |
| 3505 | } |
| 3506 | break; |
| 3507 | |
| 3508 | default: |
| 3509 | { |
| 3510 | rc = -EINVAL; |
| 3511 | } |
| 3512 | break; |
| 3513 | } |
| 3514 | |
| 3515 | |
| 3516 | //Done: |
| 3517 | mutex_lock(&state->dev_mutex); |
| 3518 | if (rc) { |
| 3519 | if (test_bit(BOOTLOAD_ACTIVE_BIT, state->flags)) { |
| 3520 | clear_bit(BOOTLOAD_ACTIVE_BIT, state->flags); |
| 3521 | } |
| 3522 | clear_bit(DEVICE_BUSY_BIT, state->flags); |
| 3523 | } |
| 3524 | else { |
| 3525 | if (!test_bit(BOOTLOAD_ACTIVE_BIT, state->flags)) { |
| 3526 | clear_bit(DEVICE_BUSY_BIT, state->flags); |
| 3527 | } |
| 3528 | } |
| 3529 | mutex_unlock(&state->dev_mutex); |
| 3530 | |
| 3531 | wake_up_interruptible(&state->dev_busyq); |
| 3532 | |
| 3533 | return rc; |
| 3534 | } |
| 3535 | |
| 3536 | static int a6_open(struct inode *inode, struct file *file) |
| 3537 | { |
| 3538 | struct a6_device_state* state; |
| 3539 | |
| 3540 | /* get device */ |
| 3541 | state = container_of(file->f_op, struct a6_device_state, fops); |
| 3542 | |
| 3543 | /* Allow only read. */ |
| 3544 | //if ((file->f_mode & (FMODE_READ|FMODE_WRITE)) != FMODE_READ) { |
| 3545 | // return -EINVAL; |
| 3546 | //} |
| 3547 | |
| 3548 | ///* check if it is in use */ |
| 3549 | //if (test_and_set_bit(IS_OPENED, state->flags)) { |
| 3550 | // return -EBUSY; |
| 3551 | //} |
| 3552 | |
| 3553 | /* attach private data */ |
| 3554 | file->private_data = state; |
| 3555 | |
| 3556 | return 0; |
| 3557 | } |
| 3558 | |
| 3559 | static int a6_close(struct inode *inode, struct file *file) |
| 3560 | { |
| 3561 | struct a6_device_state* state = (struct a6_device_state*) file->private_data; |
| 3562 | |
| 3563 | state = state; |
| 3564 | ///* mark it as unused */ |
| 3565 | //clear_bit(IS_OPENED, state->flags); |
| 3566 | |
| 3567 | return 0; |
| 3568 | } |
| 3569 | |
| 3570 | #define A2A_DGRAM_PREAMBLE (0x5AC35AC3) |
| 3571 | struct a2a_dgram_hdr { |
| 3572 | uint32_t preamble; |
| 3573 | uint16_t len; |
| 3574 | uint16_t cksum; |
| 3575 | }; |
| 3576 | |
| 3577 | static ssize_t a6_read(struct file *file, char __user *buf, size_t count, loff_t *ppos ) |
| 3578 | { |
| 3579 | # define A2A_RX_MISS_THRESHOLD (300) |
| 3580 | |
| 3581 | ssize_t rc = 0; |
| 3582 | struct a6_device_state* state; |
| 3583 | struct a6_register_desc *reg_desc_comm_status, *reg_desc_comm_rxtx; |
| 3584 | uint8_t vals[id_size]; |
| 3585 | int32_t miss_count, rd_count; |
| 3586 | //struct a2a_dgram_hdr hdr; |
| 3587 | uint32_t start_time; |
| 3588 | uint8_t elt_val = 0, prev_byte; |
| 3589 | |
| 3590 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: enter\n", __func__); |
| 3591 | |
| 3592 | start_time = jiffies; |
| 3593 | /* input validations */ |
| 3594 | if (!count) { |
| 3595 | return -EINVAL; |
| 3596 | } |
| 3597 | else if (count > A2A_RD_BUFF_SIZE) { |
| 3598 | return -EFBIG; |
| 3599 | } |
| 3600 | |
| 3601 | /* get state */ |
| 3602 | state = container_of(file->f_op, struct a6_device_state, fops); |
| 3603 | |
| 3604 | // acquire critsec |
| 3605 | rc = mutex_lock_interruptible(&state->dev_mutex); |
| 3606 | if (rc) { |
| 3607 | printk(KERN_ERR "%s: mutex_lock interrupted.\n", __func__); |
| 3608 | return -ERESTARTSYS; |
| 3609 | } |
| 3610 | |
| 3611 | /* not connected? exit */ |
| 3612 | if (!test_bit(A2A_CONNECTED, state->flags)) { |
| 3613 | mutex_unlock(&state->dev_mutex); |
| 3614 | printk(KERN_ERR "%s: no a2a connection detected.\n", __func__); |
| 3615 | return -EINVAL; |
| 3616 | } |
| 3617 | |
| 3618 | // busy? |
| 3619 | if (test_and_set_bit(READ_ACTIVE_BIT, state->flags)) { |
| 3620 | // yes: get on a waitq |
| 3621 | mutex_unlock(&state->dev_mutex); |
| 3622 | printk(KERN_ERR "%s: re-entrant call disallowed.\n", __func__); |
| 3623 | return -EINVAL; |
| 3624 | } |
| 3625 | |
| 3626 | mutex_unlock(&state->dev_mutex); |
| 3627 | |
| 3628 | /* init a2a read ptr */ |
| 3629 | state->a2a_rp = state->a2a_rd_buf; |
| 3630 | |
| 3631 | rd_count = 0; |
| 3632 | miss_count = 0; |
| 3633 | prev_byte = 0; |
| 3634 | do { |
| 3635 | /* read comm status */ |
| 3636 | reg_desc_comm_status = &a6_register_desc_arr[63]; |
| 3637 | memset(vals, 0, sizeof(vals)); |
| 3638 | rc = a6_i2c_read_reg(state->i2c_dev, reg_desc_comm_status->id, |
| 3639 | reg_desc_comm_status->num_ids, vals); |
| 3640 | if (rc < 0) { |
| 3641 | printk(KERN_ERR "%s: error reading reg: %s, id: 0x%x\n", |
| 3642 | __func__, reg_desc_comm_status->debug_name, reg_desc_comm_status->id[0]); |
| 3643 | goto err0; |
| 3644 | } |
| 3645 | |
| 3646 | if (!(vals[0] & TS2_I2C_COMM_STATUS_RX_FULL)) { |
| 3647 | if (++miss_count > A2A_RX_MISS_THRESHOLD) { |
| 3648 | if (test_bit(A2A_CONNECTED, state->flags)) { |
| 3649 | continue; |
| 3650 | } |
| 3651 | else { |
| 3652 | break; |
| 3653 | } |
| 3654 | } |
| 3655 | continue; |
| 3656 | } |
| 3657 | |
| 3658 | /* read rx data */ |
| 3659 | memset(vals, 0, sizeof(vals)); |
| 3660 | reg_desc_comm_rxtx = &a6_register_desc_arr[64]; |
| 3661 | rc = a6_i2c_read_reg(state->i2c_dev, reg_desc_comm_rxtx->id, |
| 3662 | reg_desc_comm_rxtx->num_ids, vals); |
| 3663 | if (rc < 0) { |
| 3664 | printk(KERN_ERR "%s: error writing reg: %s, id: 0x%x\n", |
| 3665 | __func__, reg_desc_comm_rxtx->debug_name, reg_desc_comm_rxtx->id[0]); |
| 3666 | rc = -EIO; |
| 3667 | goto err0; |
| 3668 | } |
| 3669 | |
| 3670 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: read byte: %d successfully.\n", |
| 3671 | __func__, rd_count); |
| 3672 | |
| 3673 | if (a6_t2s_dup_correct) { |
| 3674 | if ((prev_byte & 0x80) ^ (vals[0] & 0x80)) { |
| 3675 | prev_byte = vals[0]; |
| 3676 | if (vals[0] & 0x80) { |
| 3677 | elt_val = _convert_hex_char_to_decimal(vals[0] & 0x7f) << 4; |
| 3678 | continue; |
| 3679 | } |
| 3680 | else { |
| 3681 | elt_val |= (_convert_hex_char_to_decimal(vals[0]) & 0x0f); |
| 3682 | } |
| 3683 | } |
| 3684 | else { |
| 3685 | printk(KERN_ERR "%s: t2s duplicate detected; char: 0x%02x.\n", |
| 3686 | __func__, vals[0]); |
| 3687 | continue; |
| 3688 | } |
| 3689 | } |
| 3690 | else { |
| 3691 | elt_val = vals[0]; |
| 3692 | } |
| 3693 | |
| 3694 | *state->a2a_rp = elt_val; |
| 3695 | state->a2a_rp++; |
| 3696 | rd_count++; |
| 3697 | } while (rd_count < count); |
| 3698 | |
| 3699 | if (!rd_count) { |
| 3700 | printk(KERN_ERR "%s: rx failed; A2A connection terminated.\n", __func__); |
| 3701 | rc = -EINVAL; |
| 3702 | } |
| 3703 | else { |
| 3704 | long diff_time; |
| 3705 | |
| 3706 | if (copy_to_user(buf, state->a2a_rd_buf, rd_count)) { |
| 3707 | rc = -EFAULT; |
| 3708 | goto err0; |
| 3709 | } |
| 3710 | rc = rd_count; |
| 3711 | diff_time = (long)jiffies - (long)start_time; |
| 3712 | printk(KERN_ERR "%s: elapsed time: %ld ms; count: %u\n", |
| 3713 | __func__, diff_time * 1000/HZ, rd_count); |
| 3714 | } |
| 3715 | |
| 3716 | |
| 3717 | err0: |
| 3718 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: exit\n", __func__); |
| 3719 | clear_bit(READ_ACTIVE_BIT, state->flags); |
| 3720 | return rc; |
| 3721 | } |
| 3722 | |
| 3723 | static ssize_t a6_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos ) |
| 3724 | { |
| 3725 | # define A2A_TX_MISS_THRESHOLD (300) |
| 3726 | |
| 3727 | ssize_t rc = 0; |
| 3728 | struct a6_device_state* state; |
| 3729 | struct a6_register_desc *reg_desc_comm_status, *reg_desc_comm_rxtx; |
| 3730 | uint8_t vals[id_size]; |
| 3731 | int32_t miss_count, wr_count; |
| 3732 | //struct a2a_dgram_hdr hdr; |
| 3733 | uint32_t start_time; |
| 3734 | uint8_t elt_buf[2], *elt_bufp = NULL; |
| 3735 | int elt_bufsize; |
| 3736 | |
| 3737 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: enter\n", __func__); |
| 3738 | |
| 3739 | start_time = jiffies; |
| 3740 | /* input validations */ |
| 3741 | if (!count) { |
| 3742 | return -EINVAL; |
| 3743 | } |
| 3744 | else if (count > A2A_WR_BUFF_SIZE) { |
| 3745 | return -EFBIG; |
| 3746 | } |
| 3747 | |
| 3748 | /* get state */ |
| 3749 | state = container_of(file->f_op, struct a6_device_state, fops); |
| 3750 | |
| 3751 | // acquire critsec |
| 3752 | rc = mutex_lock_interruptible(&state->dev_mutex); |
| 3753 | if (rc) { |
| 3754 | printk(KERN_ERR "%s: mutex_lock interrupted.\n", __func__); |
| 3755 | return -ERESTARTSYS; |
| 3756 | } |
| 3757 | |
| 3758 | /* not connected? exit */ |
| 3759 | if (!test_bit(A2A_CONNECTED, state->flags)) { |
| 3760 | mutex_unlock(&state->dev_mutex); |
| 3761 | printk(KERN_ERR "%s: no a2a connection detected.\n", __func__); |
| 3762 | return -EINVAL; |
| 3763 | } |
| 3764 | |
| 3765 | // busy? |
| 3766 | if (test_and_set_bit(WRITE_ACTIVE_BIT, state->flags)) { |
| 3767 | mutex_unlock(&state->dev_mutex); |
| 3768 | printk(KERN_ERR "%s: re-entrant call disallowed.\n", __func__); |
| 3769 | return -EINVAL; |
| 3770 | } |
| 3771 | |
| 3772 | mutex_unlock(&state->dev_mutex); |
| 3773 | |
| 3774 | /* copy to kernel buffer */ |
| 3775 | //hdr.preamble = A2A_DGRAM_PREAMBLE; |
| 3776 | //hdr.len = count; |
| 3777 | //hdr.cksum = 0; |
| 3778 | ///* header */ |
| 3779 | //if (copy_from_user(state->a2a_wr_buf, &hdr, sizeof(hdr))) { |
| 3780 | // rc = -EFAULT; |
| 3781 | // mutex_unlock(&state->dev_mutex); |
| 3782 | // goto err0; |
| 3783 | //} |
| 3784 | /* data */ |
| 3785 | if (copy_from_user(state->a2a_wr_buf/*+sizeof(hdr)*/, buf, count)) { |
| 3786 | rc = -EFAULT; |
| 3787 | goto err0; |
| 3788 | } |
| 3789 | /* init a2a write ptr */ |
| 3790 | state->a2a_wp = state->a2a_wr_buf; |
| 3791 | |
| 3792 | wr_count = 0; |
| 3793 | miss_count = 0; |
| 3794 | elt_bufsize = 0; |
| 3795 | do { |
| 3796 | /* read comm status */ |
| 3797 | reg_desc_comm_status = &a6_register_desc_arr[63]; |
| 3798 | memset(vals, 0, sizeof(vals)); |
| 3799 | rc = a6_i2c_read_reg(state->i2c_dev, reg_desc_comm_status->id, |
| 3800 | reg_desc_comm_status->num_ids, vals); |
| 3801 | if (rc < 0) { |
| 3802 | printk(KERN_ERR "%s: error reading reg: %s, id: 0x%x\n", |
| 3803 | __func__, reg_desc_comm_status->debug_name, reg_desc_comm_status->id[0]); |
| 3804 | goto err0; |
| 3805 | } |
| 3806 | |
| 3807 | if (!(vals[0] & TS2_I2C_COMM_STATUS_TX_EMPTY)) { |
| 3808 | if (++miss_count > A2A_TX_MISS_THRESHOLD) { |
| 3809 | if (test_bit(A2A_CONNECTED, state->flags)) { |
| 3810 | continue; |
| 3811 | } |
| 3812 | else { |
| 3813 | break; |
| 3814 | } |
| 3815 | } |
| 3816 | continue; |
| 3817 | } |
| 3818 | |
| 3819 | /* write tx data */ |
| 3820 | reg_desc_comm_rxtx = &a6_register_desc_arr[64]; |
| 3821 | if (!elt_bufsize) { |
| 3822 | if (a6_t2s_dup_correct) { |
| 3823 | elt_bufsize = 2; |
| 3824 | sprintf(elt_buf, "%02x", *state->a2a_wp); |
| 3825 | elt_buf[0] |= 0x80; |
| 3826 | } |
| 3827 | else { |
| 3828 | elt_bufsize = 1; |
| 3829 | elt_buf[0] = *state->a2a_wp; |
| 3830 | } |
| 3831 | elt_bufp = elt_buf; |
| 3832 | } |
| 3833 | rc = a6_i2c_write_reg(state->i2c_dev, reg_desc_comm_rxtx->id, |
| 3834 | reg_desc_comm_rxtx->num_ids, elt_bufp); |
| 3835 | if (rc < 0) { |
| 3836 | printk(KERN_ERR "%s: error writing reg: %s, id: 0x%x\n", |
| 3837 | __func__, reg_desc_comm_rxtx->debug_name, reg_desc_comm_rxtx->id[0]); |
| 3838 | rc = -EIO; |
| 3839 | goto err0; |
| 3840 | } |
| 3841 | elt_bufp++; |
| 3842 | elt_bufsize--; |
| 3843 | |
| 3844 | if (!elt_bufsize) { |
| 3845 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: written byte: %d successfully.\n", |
| 3846 | __func__, wr_count); |
| 3847 | state->a2a_wp++; |
| 3848 | wr_count++; |
| 3849 | } |
| 3850 | } while (wr_count < count); |
| 3851 | |
| 3852 | if (!wr_count) { |
| 3853 | printk(KERN_ERR "%s: tx failed; A2A connection terminated.\n", |
| 3854 | __func__); |
| 3855 | rc = -EIO; |
| 3856 | goto err0; |
| 3857 | } |
| 3858 | else { |
| 3859 | long diff_time; |
| 3860 | rc = wr_count; |
| 3861 | diff_time = (long)jiffies - (long)start_time; |
| 3862 | printk(KERN_ERR "%s: elapsed time: %ld ms; count: %u\n", __func__, |
| 3863 | diff_time * 1000/HZ, wr_count); |
| 3864 | } |
| 3865 | |
| 3866 | |
| 3867 | err0: |
| 3868 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: exit\n", __func__); |
| 3869 | clear_bit(WRITE_ACTIVE_BIT, state->flags); |
| 3870 | return rc; |
| 3871 | } |
| 3872 | |
| 3873 | static unsigned int a6_poll(struct file* file, struct poll_table_struct* wait) |
| 3874 | { |
| 3875 | unsigned int mask = 0; |
| 3876 | |
| 3877 | return mask; |
| 3878 | } |
| 3879 | |
| 3880 | struct file_operations a6_fops = { |
| 3881 | .owner = THIS_MODULE, |
| 3882 | .read = a6_read, |
| 3883 | .write = a6_write, |
| 3884 | .poll = a6_poll, |
| 3885 | .unlocked_ioctl = a6_ioctl, |
| 3886 | .open = a6_open, |
| 3887 | .release = a6_close, |
| 3888 | }; |
| 3889 | |
| 3890 | /* |
| 3891 | * a6 interrupt handler |
| 3892 | */ |
| 3893 | static irqreturn_t a6_irq(int irq, void *dev_id) |
| 3894 | { |
| 3895 | struct a6_device_state* state = (struct a6_device_state *)dev_id; |
| 3896 | |
| 3897 | a6_tp_irq_count++; |
| 3898 | #if defined PROFILE_USAGE |
| 3899 | /* |
| 3900 | if (true == reset_active) { |
| 3901 | diff_time = (long)jiffies - (long)start_time; |
| 3902 | reset_active = false; |
| 3903 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "A6_IRQ toggle post power-cycle after: %d ms\n", |
| 3904 | diff_time*1000/HZ); |
| 3905 | } |
| 3906 | */ |
| 3907 | #endif |
| 3908 | |
| 3909 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: entry.\n", __func__); |
| 3910 | |
| 3911 | if (test_bit(IS_SUSPENDED, state->flags)) { |
| 3912 | set_bit(INT_PENDING, state->flags); |
| 3913 | } else { |
| 3914 | queue_work(state->ka6d_workqueue, &state->a6_irq_work); |
| 3915 | } |
| 3916 | |
| 3917 | return IRQ_HANDLED; |
| 3918 | } |
| 3919 | |
| 3920 | void a6_irq_work_handler(struct work_struct *work) |
| 3921 | { |
| 3922 | struct a6_device_state* state = |
| 3923 | container_of(work, struct a6_device_state, a6_irq_work); |
| 3924 | struct a6_register_desc *reg_desc_status3, *reg_desc_status2; |
| 3925 | uint8_t vals[id_size], reg_val_status3 = 0, reg_val_status2 = 0; |
| 3926 | bool charge_source_changed = false; |
| 3927 | bool battery_changed = false; |
| 3928 | int32_t ret = 0; |
| 3929 | char *envp[] = { |
| 3930 | [0] = "A6_ACTION=EMERGENCY_RESET_NOTIFY", |
| 3931 | [1] = NULL, |
| 3932 | [2] = "A6_ACTION=LOG_THRESHOLD_NOTIFY", |
| 3933 | [3] = NULL, |
| 3934 | [4] = "A6_ACTION=CHARGE_SOURCE_NOTIFY", |
| 3935 | [5] = NULL, |
| 3936 | [6] = "A6_ACTION=PERCENT_LOW_WARN1_NOTIFY", |
| 3937 | [7] = NULL, |
| 3938 | [8] = "A6_ACTION=PERCENT_LOW_WARN2_NOTIFY", |
| 3939 | [9] = NULL, |
| 3940 | [10] = "A6_ACTION=PECENT_LOW_CRIT_NOTIFY", |
| 3941 | [11] = NULL, |
| 3942 | [12] = "A6_ACTION=VOLTAGE_LOW_CRIT_NOTIFY", |
| 3943 | [13] = NULL, |
| 3944 | [14] = "A6_ACTION=TEMP_LOW_CRIT_NOTIFY", |
| 3945 | [15] = NULL, |
| 3946 | [16] = "A6_ACTION=TEMP_HIGH_CRIT_NOTIFY", |
| 3947 | [17] = NULL, |
| 3948 | [18] = "A6_ACTION=A2A_CONNECT_NOTIFY", |
| 3949 | [19] = NULL |
| 3950 | }; |
| 3951 | |
| 3952 | // block irq processing while a6 fw flashing is in progress because i2c requests |
| 3953 | // will fail anyway and we dont' want to fiddle with SBW_WKUP while flashing is |
| 3954 | // in progress... |
| 3955 | |
| 3956 | // critsec for manipulating flags |
| 3957 | mutex_lock(&state->dev_mutex); |
| 3958 | |
| 3959 | // busy? |
| 3960 | while (test_and_set_bit(DEVICE_BUSY_BIT, state->flags)) { |
| 3961 | // yes: are we in bootload phase? |
| 3962 | if (!test_bit(BOOTLOAD_ACTIVE_BIT, state->flags)) { |
| 3963 | // no: so go ahead and allow concurrent i2c ops (these are |
| 3964 | // synchronized separately to allow priority based execution). |
| 3965 | break; |
| 3966 | } |
| 3967 | |
| 3968 | // in bootload phase: get on a waitq |
| 3969 | mutex_unlock(&state->dev_mutex); |
| 3970 | printk(KERN_ERR "%s: about to wait for device non-busy...\n", __func__); |
| 3971 | |
| 3972 | // bootload bit set? wait to be cleared (at least 5 mins: in jiffies) |
| 3973 | ret = wait_event_interruptible_timeout(state->dev_busyq, |
| 3974 | !test_bit(BOOTLOAD_ACTIVE_BIT, state->flags), 300*HZ); |
| 3975 | if (!ret) { |
| 3976 | printk(KERN_ERR "%s: wait on device busy timed-out/interrupted\n", __func__); |
| 3977 | // reset busy state |
| 3978 | clear_bit(BOOTLOAD_ACTIVE_BIT, state->flags); |
| 3979 | clear_bit(DEVICE_BUSY_BIT, state->flags); |
| 3980 | // and continue... |
| 3981 | } |
| 3982 | |
| 3983 | // we're about to manipulate flags again: acquire critsec |
| 3984 | mutex_lock(&state->dev_mutex); |
| 3985 | } |
| 3986 | |
| 3987 | /* increment busy refcount */ |
| 3988 | state->busy_count++; |
| 3989 | |
| 3990 | // done with flags: exit critsec |
| 3991 | mutex_unlock(&state->dev_mutex); |
| 3992 | |
| 3993 | /* determine irq cause */ |
| 3994 | reg_desc_status3 = &a6_register_desc_arr[7]; |
| 3995 | reg_desc_status2 = &a6_register_desc_arr[6]; |
| 3996 | |
| 3997 | /* (1) read int_status3: emergency reset and charge-source change */ |
| 3998 | memset(vals, 0, sizeof(vals)); |
| 3999 | ret = a6_i2c_read_reg(state->i2c_dev, reg_desc_status3->id, reg_desc_status3->num_ids, vals); |
| 4000 | if (ret < 0) { |
| 4001 | printk(KERN_ERR "%s: error reading reg: %s, id: 0x%x\n", |
| 4002 | __func__, reg_desc_status3->debug_name, reg_desc_status3->id[0]); |
| 4003 | goto err0; |
| 4004 | } |
| 4005 | reg_val_status3 = vals[0]; |
| 4006 | |
| 4007 | /* (2) read int_status2: other irq causes */ |
| 4008 | memset(vals, 0, sizeof(vals)); |
| 4009 | ret = a6_i2c_read_reg(state->i2c_dev, reg_desc_status2->id, reg_desc_status2->num_ids, vals); |
| 4010 | if (ret < 0) { |
| 4011 | printk(KERN_ERR "%s: error reading reg: %s, id: 0x%x\n", |
| 4012 | __func__, reg_desc_status2->debug_name, reg_desc_status2->id[0]); |
| 4013 | goto err0; |
| 4014 | } |
| 4015 | reg_val_status2 = vals[0]; |
| 4016 | |
| 4017 | /* (3) now clear all status bits: this "releases" the irq line early */ |
| 4018 | if (reg_val_status3) { |
| 4019 | vals[0] = reg_val_status3; |
| 4020 | ret = a6_i2c_write_reg(state->i2c_dev, reg_desc_status3->id, reg_desc_status3->num_ids, vals); |
| 4021 | if (ret < 0) { |
| 4022 | printk(KERN_ERR "%s: error writing reg: %s, id: 0x%x\n", |
| 4023 | __func__, reg_desc_status3->debug_name, reg_desc_status3->id[0]); |
| 4024 | goto err0; |
| 4025 | } |
| 4026 | } |
| 4027 | if (reg_val_status2) { |
| 4028 | vals[0] = reg_val_status2; |
| 4029 | ret = a6_i2c_write_reg(state->i2c_dev, reg_desc_status2->id, reg_desc_status2->num_ids, vals); |
| 4030 | if (ret < 0) { |
| 4031 | printk(KERN_ERR "%s: error writing reg: %s, id: 0x%x\n", |
| 4032 | __func__, reg_desc_status3->debug_name, reg_desc_status3->id[0]); |
| 4033 | goto err0; |
| 4034 | } |
| 4035 | } |
| 4036 | |
| 4037 | /* (4) process emergency reset and charge-source changes...*/ |
| 4038 | if (reg_val_status3) { |
| 4039 | /* emergency reset? */ |
| 4040 | if (reg_val_status3 & TS2_I2C_INT_3_RESET) { |
| 4041 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: emergency reset detected.\n", |
| 4042 | __func__); |
| 4043 | |
| 4044 | /* Send uevent */ |
| 4045 | kobject_uevent_env(&state->i2c_dev->dev.kobj, KOBJ_CHANGE, &envp[0]); |
| 4046 | /* this condition overrides all others and we can probably skip |
| 4047 | resetting the status bits */ |
| 4048 | goto err0; |
| 4049 | } |
| 4050 | |
| 4051 | /* a2a connect change? */ |
| 4052 | if (reg_val_status3 & TS2_I2C_INT_3_A2A_CONNECT_CHANGE) { |
| 4053 | struct a6_register_desc *reg_desc_charger; |
| 4054 | uint8_t chg_vals[id_size]; |
| 4055 | |
| 4056 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: a2a connect change detected.\n", |
| 4057 | __func__); |
| 4058 | printk(KERN_ERR "%s: a2a connect change detected.\n", __func__); |
| 4059 | reg_desc_charger = &a6_register_desc_arr[31]; |
| 4060 | memset(chg_vals, 0, sizeof(chg_vals)); |
| 4061 | if (a6_i2c_read_reg(state->i2c_dev, reg_desc_charger->id, |
| 4062 | reg_desc_charger->num_ids, chg_vals) < 0) { |
| 4063 | printk(KERN_ERR "%s: error reading reg: %s, id: 0x%x\n", |
| 4064 | __func__, reg_desc_charger->debug_name, |
| 4065 | reg_desc_charger->id[0]); |
| 4066 | } |
| 4067 | else { |
| 4068 | if (chg_vals[0] & TS2_I2C_FLAGS_2_A2A_CONNECT) { |
| 4069 | set_bit(A2A_CONNECTED, state->flags); |
| 4070 | } |
| 4071 | else { |
| 4072 | clear_bit(A2A_CONNECTED, state->flags); |
| 4073 | } |
| 4074 | /* Send uevent */ |
| 4075 | kobject_uevent_env(&state->i2c_dev->dev.kobj, KOBJ_CHANGE, &envp[18]); |
| 4076 | } |
| 4077 | } |
| 4078 | |
| 4079 | /* charger-source change? */ |
| 4080 | if (reg_val_status3 & TS2_I2C_INT_3_FLAGS_CHANGE) { |
| 4081 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: charger-source change detected.\n", |
| 4082 | __func__); |
| 4083 | |
| 4084 | /* next, unblock task on charger_source_notify node */ |
| 4085 | //sysfs_notify_dirent(state->notify_nodes[DIRENT_CHG_SRC_NOTIFY]); |
| 4086 | /* Send uevent */ |
| 4087 | kobject_uevent_env(&state->i2c_dev->dev.kobj, KOBJ_CHANGE, &envp[4]); |
| 4088 | charge_source_changed = true; |
| 4089 | } |
| 4090 | |
| 4091 | /* log threshold change? */ |
| 4092 | if (reg_val_status3 & TS2_I2C_INT_3_LOG) { |
| 4093 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: log threshold detected.\n", |
| 4094 | __func__); |
| 4095 | |
| 4096 | /* Send uevent */ |
| 4097 | kobject_uevent_env(&state->i2c_dev->dev.kobj, KOBJ_CHANGE, &envp[2]); |
| 4098 | } |
| 4099 | } |
| 4100 | |
| 4101 | /* (5) process other irq causes... */ |
| 4102 | if (reg_val_status2) { |
| 4103 | /* battery low critical? */ |
| 4104 | if (reg_val_status2 & TS2_I2C_INT_2_BAT_RARC_CRIT) { |
| 4105 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: battery low critical detected.\n", |
| 4106 | __func__); |
| 4107 | |
| 4108 | /* Send uevent */ |
| 4109 | kobject_uevent_env(&state->i2c_dev->dev.kobj, KOBJ_CHANGE, &envp[10]); |
| 4110 | battery_changed = true; |
| 4111 | } |
| 4112 | |
| 4113 | /* battery voltage low critical? */ |
| 4114 | if (reg_val_status2 & TS2_I2C_INT_2_BAT_VOLT_LOW) { |
| 4115 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: battery voltage low critical detected.\n", |
| 4116 | __func__); |
| 4117 | |
| 4118 | /* Send uevent */ |
| 4119 | kobject_uevent_env(&state->i2c_dev->dev.kobj, KOBJ_CHANGE, &envp[12]); |
| 4120 | battery_changed = true; |
| 4121 | } |
| 4122 | |
| 4123 | /* battery temp high critical? */ |
| 4124 | if (reg_val_status2 & TS2_I2C_INT_2_BAT_TEMP_HIGH) { |
| 4125 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: battery temp high critical detected.\n", |
| 4126 | __func__); |
| 4127 | |
| 4128 | /* Send uevent */ |
| 4129 | kobject_uevent_env(&state->i2c_dev->dev.kobj, KOBJ_CHANGE, &envp[16]); |
| 4130 | } |
| 4131 | |
| 4132 | /* battery temp low critical? */ |
| 4133 | if (reg_val_status2 & TS2_I2C_INT_2_BAT_TEMP_LOW) { |
| 4134 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: battery temp low critical detected.\n", |
| 4135 | __func__); |
| 4136 | |
| 4137 | /* Send uevent */ |
| 4138 | kobject_uevent_env(&state->i2c_dev->dev.kobj, KOBJ_CHANGE, &envp[14]); |
| 4139 | } |
| 4140 | |
| 4141 | /* battery low percent warn2? */ |
| 4142 | if (reg_val_status2 & TS2_I2C_INT_2_BAT_RARC_LOW2) { |
| 4143 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: battery low percent warn2 detected.\n", |
| 4144 | __func__); |
| 4145 | |
| 4146 | /* Send uevent */ |
| 4147 | kobject_uevent_env(&state->i2c_dev->dev.kobj, KOBJ_CHANGE, &envp[8]); |
| 4148 | battery_changed = true; |
| 4149 | } |
| 4150 | |
| 4151 | /* battery low percent warn1? */ |
| 4152 | if (reg_val_status2 & TS2_I2C_INT_2_BAT_RARC_LOW1) { |
| 4153 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: battery low percent warn1 detected.\n", |
| 4154 | __func__); |
| 4155 | |
| 4156 | /* Send uevent */ |
| 4157 | kobject_uevent_env(&state->i2c_dev->dev.kobj, KOBJ_CHANGE, &envp[6]); |
| 4158 | battery_changed = true; |
| 4159 | } |
| 4160 | } |
| 4161 | |
| 4162 | err0: |
| 4163 | /* decrement busy refcount */ |
| 4164 | if (state->busy_count) |
| 4165 | state->busy_count--; |
| 4166 | if (!state->busy_count) |
| 4167 | clear_bit(DEVICE_BUSY_BIT, state->flags); |
| 4168 | |
| 4169 | if (charge_source_changed) { |
| 4170 | a6_dock_update_state(state); |
| 4171 | } |
| 4172 | if (state->plat_data->power_supply_connected == 1 && batt_state != NULL) { |
| 4173 | if (battery_changed) { |
| 4174 | power_supply_changed(&a6_fish_power_supplies[0]); |
| 4175 | } |
| 4176 | if (charge_source_changed) { |
| 4177 | power_supply_changed(&a6_fish_power_supplies[1]); |
| 4178 | power_supply_changed(&a6_fish_power_supplies[2]); |
| 4179 | #ifdef CONFIG_A6_ENABLE_DOCK_PS |
| 4180 | power_supply_changed(&a6_fish_power_supplies[3]); |
| 4181 | #endif |
| 4182 | a6_update_connected_ps(); |
| 4183 | } |
| 4184 | } |
| 4185 | |
| 4186 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: Visited\n", __func__); |
| 4187 | } |
| 4188 | |
| 4189 | |
| 4190 | #ifdef A6_PQ |
| 4191 | int32_t a6_stop_ai_dispatch_task(struct a6_device_state* state) |
| 4192 | { |
| 4193 | int32_t rc = 0; |
| 4194 | |
| 4195 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: entered.\n", __func__); |
| 4196 | // critsec for manipulating flags |
| 4197 | rc = mutex_lock_interruptible(&state->dev_mutex); |
| 4198 | if (rc) { |
| 4199 | printk(KERN_ERR "%s: mutex_lock interrupted\n", __func__); |
| 4200 | return -ERESTARTSYS; |
| 4201 | } |
| 4202 | // stopping during a start? fail |
| 4203 | if (test_bit(STARTING_AID_TASK, state->flags)) { |
| 4204 | printk(KERN_ERR "%s: aid task not fully started. failing op.\n", __func__); |
| 4205 | rc = -EBUSY; |
| 4206 | mutex_unlock(&state->dev_mutex); |
| 4207 | goto err0; |
| 4208 | } |
| 4209 | |
| 4210 | // stopping during a stop? fail |
| 4211 | if (test_bit(KILLING_AID_TASK, state->flags)) { |
| 4212 | printk(KERN_ERR "%s: aid task being stopped. failing op.\n", __func__); |
| 4213 | rc = -EBUSY; |
| 4214 | mutex_unlock(&state->dev_mutex); |
| 4215 | goto err0; |
| 4216 | } |
| 4217 | |
| 4218 | // task never started? fail |
| 4219 | if (!state->ai_dispatch_task) { |
| 4220 | printk(KERN_ERR "%s: no aid task. failing op.\n", __func__); |
| 4221 | rc = -EPERM; |
| 4222 | mutex_unlock(&state->dev_mutex); |
| 4223 | goto err0; |
| 4224 | } |
| 4225 | |
| 4226 | // transition to quiesced state: stops accepting new requests |
| 4227 | set_bit(IS_QUIESCED, state->flags); |
| 4228 | // declare intent to kill ai dispatch task |
| 4229 | set_bit(KILLING_AID_TASK, state->flags); |
| 4230 | // exit critsec |
| 4231 | mutex_unlock(&state->dev_mutex); |
| 4232 | |
| 4233 | // kick task if asleep |
| 4234 | complete(&state->aq_enq_complete); |
| 4235 | |
| 4236 | // wait for ai dispatch task exit |
| 4237 | rc = wait_for_completion_interruptible(&state->aid_exit_complete); |
| 4238 | if (rc < 0) { |
| 4239 | printk(KERN_ERR "%s: wait for ai dispatch task exit interrupted.\n", |
| 4240 | __func__); |
| 4241 | } |
| 4242 | |
| 4243 | // critsec for manipulating flags |
| 4244 | rc = mutex_lock_interruptible(&state->dev_mutex); |
| 4245 | if (rc) { |
| 4246 | printk(KERN_ERR "%s: mutex_lock interrupted(1)\n", __func__); |
| 4247 | return -ERESTARTSYS; |
| 4248 | } |
| 4249 | // ai dispatch task exited (assume it did if we get interrupted): reset state |
| 4250 | clear_bit(KILLING_AID_TASK, state->flags); |
| 4251 | state->ai_dispatch_task = NULL; |
| 4252 | // exit critsec |
| 4253 | mutex_unlock(&state->dev_mutex); |
| 4254 | |
| 4255 | |
| 4256 | err0: |
| 4257 | return rc; |
| 4258 | } |
| 4259 | |
| 4260 | int32_t a6_start_ai_dispatch_task(struct a6_device_state* state) |
| 4261 | { |
| 4262 | int32_t rc = 0; |
| 4263 | pid_t ai_dispatch_pid; |
| 4264 | |
| 4265 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: entered.\n", __func__); |
| 4266 | |
| 4267 | // critsec for manipulating flags |
| 4268 | rc = mutex_lock_interruptible(&state->dev_mutex); |
| 4269 | if (rc) { |
| 4270 | printk(KERN_ERR "%s: mutex_lock interrupted\n", __func__); |
| 4271 | return -ERESTARTSYS; |
| 4272 | } |
| 4273 | // starting during a start? fail |
| 4274 | if (test_bit(STARTING_AID_TASK, state->flags)) { |
| 4275 | printk(KERN_ERR "%s: aid task not fully started. failing op.\n", __func__); |
| 4276 | rc = -EBUSY; |
| 4277 | mutex_unlock(&state->dev_mutex); |
| 4278 | goto err0; |
| 4279 | } |
| 4280 | |
| 4281 | // starting during a stop? fail |
| 4282 | if (test_bit(KILLING_AID_TASK, state->flags)) { |
| 4283 | printk(KERN_ERR "%s: aid task being stopped. failing op.\n", __func__); |
| 4284 | rc = -EBUSY; |
| 4285 | mutex_unlock(&state->dev_mutex); |
| 4286 | goto err0; |
| 4287 | } |
| 4288 | |
| 4289 | // task never stopped? fail |
| 4290 | if (state->ai_dispatch_task) { |
| 4291 | printk(KERN_ERR "%s: aid task exists. failing op.\n", __func__); |
| 4292 | rc = -EPERM; |
| 4293 | mutex_unlock(&state->dev_mutex); |
| 4294 | goto err0; |
| 4295 | } |
| 4296 | |
| 4297 | // declare intent to start ai dispatch task |
| 4298 | set_bit(STARTING_AID_TASK, state->flags); |
| 4299 | // exit critsec |
| 4300 | mutex_unlock(&state->dev_mutex); |
| 4301 | |
| 4302 | |
| 4303 | // create ai dispatcher task... |
| 4304 | ai_dispatch_pid = kernel_thread(ai_dispatch_thread_fn, state, |
| 4305 | CLONE_KERNEL); |
| 4306 | if (ai_dispatch_pid < 0) { |
| 4307 | printk(KERN_ERR "%s: failed to create ai dispatcher task.\n", __func__); |
| 4308 | rc = -EIO; |
| 4309 | goto err0; |
| 4310 | } |
| 4311 | |
| 4312 | rc = mutex_lock_interruptible(&state->dev_mutex); |
| 4313 | if (rc) { |
| 4314 | printk(KERN_ERR "%s: mutex_lock interrupted(1)\n", __func__); |
| 4315 | return -ERESTARTSYS; |
| 4316 | } |
| 4317 | // retrieve worker task struct |
| 4318 | state->ai_dispatch_task = get_pid_task(find_get_pid(ai_dispatch_pid), PIDTYPE_PID); |
| 4319 | ASSERT(state->ai_dispatch_task); |
| 4320 | |
| 4321 | // transition to active state: start accepting new requests |
| 4322 | clear_bit(IS_QUIESCED, state->flags); |
| 4323 | // ai dispatch task started: reset state |
| 4324 | clear_bit(STARTING_AID_TASK, state->flags); |
| 4325 | // exit critsec |
| 4326 | mutex_unlock(&state->dev_mutex); |
| 4327 | |
| 4328 | err0: |
| 4329 | return rc; |
| 4330 | } |
| 4331 | #endif // A6_PQ |
| 4332 | |
| 4333 | void a6_force_wake_work_handler(struct work_struct *work) |
| 4334 | { |
| 4335 | struct a6_device_state* state = |
| 4336 | container_of(work, struct a6_device_state, a6_force_wake_work); |
| 4337 | struct a6_wake_ops* wake_ops = (struct a6_wake_ops*)state->plat_data->wake_ops; |
| 4338 | long diff_time; |
| 4339 | |
| 4340 | diff_time = (long)jiffies - (long)start_last_a6_activity; |
| 4341 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: forcing sleep after: %ld ms\n", |
| 4342 | __func__, diff_time * 1000/HZ); |
| 4343 | |
| 4344 | start_last_a6_activity = 0; |
| 4345 | |
| 4346 | // force A6 sleep and switch back to periodic wake... |
| 4347 | // * timer may be scheduled just after we clear FORCE_WAKE_ACTIVE_BIT |
| 4348 | // and hence will result in the callback being invoked with |
| 4349 | // FORCE_WAKE_ACTIVE_BIT cleared. We just ignore this case... |
| 4350 | mutex_lock(&state->a6_force_wake_mutex); |
| 4351 | if (!test_bit(DEVICE_BUSY_BIT, state->flags)) { |
| 4352 | if (test_bit(FORCE_WAKE_ACTIVE_BIT, state->flags)) { |
| 4353 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, |
| 4354 | "%s: disabling force_wake and enabling periodic_wake\n", |
| 4355 | __func__); |
| 4356 | /* force A6 sleep */ |
| 4357 | if (wake_ops->force_sleep) { |
| 4358 | wake_ops->force_sleep(wake_ops->data); |
| 4359 | } |
| 4360 | /* enable periodic a6 wake (if defined) */ |
| 4361 | if (wake_ops->enable_periodic_wake) { |
| 4362 | wake_ops->enable_periodic_wake(wake_ops->data); |
| 4363 | } |
| 4364 | /* now we are ready to clear FORCE_WAKE_ACTIVE_BIT */ |
| 4365 | clear_bit(FORCE_WAKE_ACTIVE_BIT, state->flags); |
| 4366 | } |
| 4367 | } |
| 4368 | mutex_unlock(&state->a6_force_wake_mutex); |
| 4369 | } |
| 4370 | |
| 4371 | |
| 4372 | // timer callback used to force sleep after a force wake |
| 4373 | void a6_force_wake_timer_callback(ulong data) |
| 4374 | { |
| 4375 | struct a6_device_state* state = (struct a6_device_state*)data; |
| 4376 | int32_t rc; |
| 4377 | |
| 4378 | rc = queue_work(state->ka6d_fw_workqueue, &state->a6_force_wake_work); |
| 4379 | if (!rc) { |
| 4380 | printk(KERN_ERR "**** %s: failed queueing force_wake work item.\n", __func__); |
| 4381 | } |
| 4382 | } |
| 4383 | |
| 4384 | static int a6_pmem_open(struct inode *inode, struct file *file) |
| 4385 | { |
| 4386 | struct a6_device_state* state; |
| 4387 | |
| 4388 | /* get device */ |
| 4389 | state = container_of(file->f_op, struct a6_device_state, pmem_fops); |
| 4390 | |
| 4391 | /* Allow only read. */ |
| 4392 | if ((file->f_mode & (FMODE_READ|FMODE_WRITE)) != FMODE_READ) { |
| 4393 | return -EINVAL; |
| 4394 | } |
| 4395 | |
| 4396 | /* check if it is in use */ |
| 4397 | if (test_and_set_bit(IS_OPENED, state->flags)) { |
| 4398 | return -EBUSY; |
| 4399 | } |
| 4400 | |
| 4401 | /* attach private data */ |
| 4402 | file->private_data = state; |
| 4403 | return 0; |
| 4404 | } |
| 4405 | |
| 4406 | static int a6_pmem_close(struct inode *inode, struct file *file) |
| 4407 | { |
| 4408 | struct a6_device_state* state = (struct a6_device_state*) file->private_data; |
| 4409 | |
| 4410 | /* mark it as unused */ |
| 4411 | clear_bit(IS_OPENED, state->flags); |
| 4412 | return 0; |
| 4413 | } |
| 4414 | |
| 4415 | static ssize_t a6_pmem_read(struct file *file, char __user *buf, size_t count, loff_t *ppos ) |
| 4416 | { |
| 4417 | |
| 4418 | ssize_t rc = 0; |
| 4419 | struct a6_device_state* state; |
| 4420 | |
| 4421 | A6_DPRINTK(A6_DEBUG_VERBOSE, KERN_ERR, "%s: enter\n", __func__); |
| 4422 | |
| 4423 | /* input validations */ |
| 4424 | if (!count) { |
| 4425 | return -EINVAL; |
| 4426 | } |
| 4427 | |
| 4428 | /* get state */ |
| 4429 | state = container_of(file->f_op, struct a6_device_state, fops); |
| 4430 | rc = ttf_image_read(buf, count, ppos); |
| 4431 | |
| 4432 | return rc; |
| 4433 | } |
| 4434 | |
| 4435 | struct file_operations a6_pmem_fops = { |
| 4436 | .owner = THIS_MODULE, |
| 4437 | .read = a6_pmem_read, |
| 4438 | .open = a6_pmem_open, |
| 4439 | .release = a6_pmem_close, |
| 4440 | }; |
| 4441 | |
| 4442 | static int a6_fish_battery_get_percent(struct device *dev) |
| 4443 | { |
| 4444 | int temp_val = 0; |
| 4445 | |
| 4446 | a6_reg_get (dev, A6_REG_TS2_I2C_BAT_RARC, &temp_val); |
| 4447 | |
| 4448 | #if defined(CONFIG_A6_BATTERY_SCALED_MIN) && CONFIG_A6_BATTERY_SCALED_MIN != 0 |
| 4449 | temp_val = (temp_val - CONFIG_A6_BATTERY_SCALED_MIN) * 100 |
| 4450 | / (100 - CONFIG_A6_BATTERY_SCALED_MIN); |
| 4451 | if (temp_val < 0) temp_val = 0; |
| 4452 | #endif |
| 4453 | |
| 4454 | return temp_val; |
| 4455 | } |
| 4456 | |
| 4457 | static unsigned a6_calc_connected_ps(void) |
| 4458 | { |
| 4459 | struct power_supply *psy; |
| 4460 | struct a6_device_state *state; |
| 4461 | unsigned int temp_val = 0; |
| 4462 | unsigned connected = 0; |
| 4463 | |
| 4464 | psy = &a6_fish_power_supplies[0]; |
| 4465 | |
| 4466 | if (!(psy->dev)) { |
| 4467 | printk(KERN_ERR "%s: psy->dev is NULL\n", __func__); |
| 4468 | return 0; |
| 4469 | } |
| 4470 | if (!(psy->dev->parent)) { |
| 4471 | printk(KERN_ERR "%s: psy->dev->parent is NULL\n", __func__); |
| 4472 | return 0; |
| 4473 | } |
| 4474 | |
| 4475 | state = (struct a6_device_state*)dev_get_drvdata(psy->dev->parent); |
| 4476 | |
| 4477 | a6_reg_get (psy->dev->parent, A6_REG_TS2_I2C_FLAGS_2, &temp_val); |
| 4478 | |
| 4479 | if (state->otg_chg_type == USB_CHG_TYPE__WALLCHARGER) { |
| 4480 | connected |= MAX8903B_CONNECTED_PS_AC; |
| 4481 | } |
| 4482 | |
| 4483 | if (state->otg_chg_type == USB_CHG_TYPE__SDP |
| 4484 | && (temp_val & TS2_I2C_FLAGS_2_WIRED_CHARGE)) { |
| 4485 | /* NOTE: USB will not show as connected if DOCK is connected */ |
| 4486 | connected |= MAX8903B_CONNECTED_PS_USB; |
| 4487 | } |
| 4488 | |
| 4489 | if(temp_val & TS2_I2C_FLAGS_2_PUCK_CHARGE) { |
| 4490 | connected |= MAX8903B_CONNECTED_PS_DOCK; |
| 4491 | } |
| 4492 | |
| 4493 | return connected; |
| 4494 | } |
| 4495 | |
| 4496 | static void a6_update_connected_ps() |
| 4497 | { |
| 4498 | unsigned connected = a6_calc_connected_ps(); |
| 4499 | |
| 4500 | printk(KERN_INFO "%s: ac=%d usb=%d dock=%d\n", __func__, |
| 4501 | (connected & MAX8903B_CONNECTED_PS_AC) ? 1 : 0, |
| 4502 | (connected & MAX8903B_CONNECTED_PS_USB) ? 1 : 0, |
| 4503 | (connected & MAX8903B_CONNECTED_PS_DOCK) ? 1 : 0); |
| 4504 | |
| 4505 | max8903b_set_connected_ps(connected); |
| 4506 | a6_last_ps_connect = (long)jiffies; |
| 4507 | } |
| 4508 | |
| 4509 | static int a6_fish_power_get_property(struct power_supply *psy, |
| 4510 | enum power_supply_property psp, |
| 4511 | union power_supply_propval *val) |
| 4512 | { |
| 4513 | unsigned connected; |
| 4514 | |
| 4515 | switch (psp) { |
| 4516 | case POWER_SUPPLY_PROP_ONLINE: |
| 4517 | connected = a6_calc_connected_ps(); |
| 4518 | |
| 4519 | if ( |
| 4520 | (psy->type == POWER_SUPPLY_TYPE_MAINS |
| 4521 | && (connected & MAX8903B_CONNECTED_PS_AC) |
| 4522 | #ifdef CONFIG_A6_ENABLE_DOCK_PS |
| 4523 | && !(connected & MAX8903B_CONNECTED_PS_DOCK) |
| 4524 | && !strcmp(psy->name, "ac") |
| 4525 | #endif |
| 4526 | ) |
| 4527 | || |
| 4528 | (psy->type == POWER_SUPPLY_TYPE_MAINS |
| 4529 | && (connected & MAX8903B_CONNECTED_PS_DOCK) |
| 4530 | #ifdef CONFIG_A6_ENABLE_DOCK_PS |
| 4531 | && !strcmp(psy->name, "dock") |
| 4532 | #endif |
| 4533 | ) |
| 4534 | || |
| 4535 | (psy->type == POWER_SUPPLY_TYPE_USB |
| 4536 | && (connected & MAX8903B_CONNECTED_PS_USB) |
| 4537 | && !(connected & MAX8903B_CONNECTED_PS_DOCK) |
| 4538 | ) |
| 4539 | ) { |
| 4540 | val->intval = 1; |
| 4541 | } else { |
| 4542 | val->intval = 0; |
| 4543 | } |
| 4544 | break; |
| 4545 | default: |
| 4546 | return -EINVAL; |
| 4547 | } |
| 4548 | |
| 4549 | return 0; |
| 4550 | } |
| 4551 | |
| 4552 | |
| 4553 | #define A6_BATT_STATS_DELAY (msecs_to_jiffies (15*1000)) |
| 4554 | static int a6_fish_battery_get_property(struct power_supply *psy, |
| 4555 | enum power_supply_property psp, |
| 4556 | union power_supply_propval *val) |
| 4557 | { |
| 4558 | int temp_val = 0; |
| 4559 | unsigned connected; |
| 4560 | |
| 4561 | switch (psp) { |
| 4562 | case POWER_SUPPLY_PROP_STATUS: |
| 4563 | if (a6_fish_battery_get_percent(psy->dev->parent) == 100) { |
| 4564 | val->intval = POWER_SUPPLY_STATUS_FULL; |
| 4565 | } else if (a6_last_ps_connect && |
| 4566 | jiffies > a6_last_ps_connect + A6_BATT_STATS_DELAY) { |
| 4567 | a6_reg_get (psy->dev->parent, |
| 4568 | A6_REG_TS2_I2C_BAT_AVG_CUR_LSB_MSB, &temp_val); |
| 4569 | if (temp_val > 0) { |
| 4570 | val->intval = POWER_SUPPLY_STATUS_CHARGING; |
| 4571 | } else { |
| 4572 | val->intval = POWER_SUPPLY_STATUS_DISCHARGING; |
| 4573 | } |
| 4574 | } else { |
| 4575 | connected = a6_calc_connected_ps(); |
| 4576 | if (connected && !(connected == MAX8903B_CONNECTED_PS_USB)) { |
| 4577 | val->intval = POWER_SUPPLY_STATUS_CHARGING; |
| 4578 | } else { |
| 4579 | val->intval = POWER_SUPPLY_STATUS_DISCHARGING; |
| 4580 | } |
| 4581 | } |
| 4582 | break; |
| 4583 | case POWER_SUPPLY_PROP_HEALTH: |
| 4584 | #if 0 |
| 4585 | /* NOTE: *_BAT_STATUS not supported by a6_reg_get yet */ |
| 4586 | a6_reg_get(psy->dev->parent, A6_REG_TS2_I2C_BAT_STATUS, &temp_uval); |
| 4587 | #endif |
| 4588 | // TODO: parse temps and set OVERHEAT, parse "age" and set DEAD */ |
| 4589 | |
| 4590 | val->intval = POWER_SUPPLY_HEALTH_GOOD; |
| 4591 | break; |
| 4592 | case POWER_SUPPLY_PROP_PRESENT: |
| 4593 | val->intval = 1; |
| 4594 | break; |
| 4595 | case POWER_SUPPLY_PROP_TECHNOLOGY: |
| 4596 | val->intval = POWER_SUPPLY_TECHNOLOGY_LION; |
| 4597 | break; |
| 4598 | case POWER_SUPPLY_PROP_CAPACITY: |
| 4599 | val->intval = a6_fish_battery_get_percent(psy->dev->parent); |
| 4600 | break; |
| 4601 | case POWER_SUPPLY_PROP_CURRENT_NOW: |
| 4602 | a6_reg_get(psy->dev->parent, |
| 4603 | A6_REG_TS2_I2C_BAT_CUR_LSB_MSB, &temp_val); |
| 4604 | val->intval = temp_val; |
| 4605 | break; |
| 4606 | case POWER_SUPPLY_PROP_VOLTAGE_NOW: |
| 4607 | a6_reg_get (psy->dev->parent, |
| 4608 | A6_REG_TS2_I2C_BAT_VOLT_LSB_MSB, &temp_val); |
| 4609 | val->intval = temp_val; |
| 4610 | break; |
| 4611 | case POWER_SUPPLY_PROP_TEMP: |
| 4612 | a6_reg_get (psy->dev->parent, |
| 4613 | A6_REG_TS2_I2C_BAT_TEMP_LSB_MSB, &temp_val); |
| 4614 | val->intval = temp_val; |
| 4615 | break; |
| 4616 | case POWER_SUPPLY_PROP_CHARGE_FULL: |
| 4617 | a6_reg_get (psy->dev->parent, |
| 4618 | A6_REG_TS2_I2C_BAT_FULL40_LSB_MSB, &temp_val); |
| 4619 | val->intval = temp_val; |
| 4620 | break; |
| 4621 | case POWER_SUPPLY_PROP_CHARGE_NOW: |
| 4622 | a6_reg_get (psy->dev->parent, |
| 4623 | A6_REG_TS2_I2C_BAT_COULOMB_LSB_MSB, &temp_val); |
| 4624 | val->intval = temp_val; |
| 4625 | break; |
| 4626 | default: |
| 4627 | return -EINVAL; |
| 4628 | } |
| 4629 | |
| 4630 | return 0; |
| 4631 | } |
| 4632 | |
| 4633 | void a6_charger_event (enum chg_type otg_chg_type) |
| 4634 | { |
| 4635 | if (batt_state) { |
| 4636 | batt_state->otg_chg_type = otg_chg_type; |
| 4637 | |
| 4638 | power_supply_changed(&a6_fish_power_supplies[1]); |
| 4639 | power_supply_changed(&a6_fish_power_supplies[2]); |
| 4640 | #ifdef CONFIG_A6_ENABLE_DOCK_PS |
| 4641 | power_supply_changed(&a6_fish_power_supplies[3]); |
| 4642 | #endif |
| 4643 | a6_update_connected_ps(); |
| 4644 | } |
| 4645 | return; |
| 4646 | } |
| 4647 | EXPORT_SYMBOL (a6_charger_event); |
| 4648 | |
| 4649 | #define A6_BATT_HB_PERIOD (msecs_to_jiffies (5*60*1000)) |
| 4650 | #define A6_INIT_CONNECTED_PS_DELAY (msecs_to_jiffies (60*1000)) |
| 4651 | static void a6_battery_heartbeat(struct work_struct *a6_battery_work) |
| 4652 | { |
| 4653 | int percent = 0; |
| 4654 | |
| 4655 | struct delayed_work *temp_charge_work = |
| 4656 | container_of (a6_battery_work, struct delayed_work, work); |
| 4657 | struct a6_device_state* state = |
| 4658 | container_of(temp_charge_work, struct a6_device_state, charge_work); |
| 4659 | |
| 4660 | if (state->stop_heartbeat) |
| 4661 | return; |
| 4662 | |
| 4663 | if ( (percent = a6_fish_battery_get_percent(&state->i2c_dev->dev)) |
| 4664 | != state->last_percent){ |
| 4665 | |
| 4666 | state->last_percent = percent; |
| 4667 | power_supply_changed(&a6_fish_power_supplies[0]); |
| 4668 | } |
| 4669 | |
| 4670 | if (!state->stop_heartbeat) |
| 4671 | schedule_delayed_work(&state->charge_work, |
| 4672 | A6_BATT_HB_PERIOD); |
| 4673 | } |
| 4674 | |
| 4675 | static void a6_init_connected_ps(struct work_struct *work) |
| 4676 | { |
| 4677 | a6_update_connected_ps(); |
| 4678 | } |
| 4679 | |
| 4680 | static int a6_fish_battery_probe(struct a6_device_state *state) |
| 4681 | { |
| 4682 | int i; |
| 4683 | int rc = 0; |
| 4684 | struct i2c_client *client = state->i2c_dev; |
| 4685 | |
| 4686 | /* init power supplier framework */ |
| 4687 | for (i = 0; i < ARRAY_SIZE(a6_fish_power_supplies); i++) { |
| 4688 | |
| 4689 | rc = power_supply_register(&client->dev, &a6_fish_power_supplies[i]); |
| 4690 | if (rc) |
| 4691 | pr_err("%s: Failed to register power supply (%d)\n", |
| 4692 | __func__, rc); |
| 4693 | } |
| 4694 | |
| 4695 | INIT_DELAYED_WORK(&state->charge_work, a6_battery_heartbeat); |
| 4696 | schedule_delayed_work(&state->charge_work, A6_BATT_HB_PERIOD); |
| 4697 | |
| 4698 | INIT_DELAYED_WORK(&state->init_connected_ps_work, a6_init_connected_ps); |
| 4699 | schedule_delayed_work(&state->init_connected_ps_work, A6_INIT_CONNECTED_PS_DELAY); |
| 4700 | |
| 4701 | return rc; |
| 4702 | } |
| 4703 | |
| 4704 | |
| 4705 | static int a6_fish_battery_remove(struct a6_device_state *state) |
| 4706 | { |
| 4707 | int i; |
| 4708 | |
| 4709 | state->stop_heartbeat = true; |
| 4710 | cancel_delayed_work_sync(&state->charge_work); |
| 4711 | |
| 4712 | /* init power supplier framework */ |
| 4713 | for (i = 0; i < ARRAY_SIZE(a6_fish_power_supplies); i++) { |
| 4714 | power_supply_unregister(&a6_fish_power_supplies[i]); |
| 4715 | } |
| 4716 | |
| 4717 | return 0; |
| 4718 | } |
| 4719 | |
| 4720 | static int a6_fish_battery_suspend (struct a6_device_state *state) |
| 4721 | { |
| 4722 | |
| 4723 | if (state->plat_data->power_supply_connected == 1 && |
| 4724 | delayed_work_pending(&state->charge_work)) { |
| 4725 | state->stop_heartbeat = true; |
| 4726 | smp_mb(); |
| 4727 | cancel_delayed_work_sync(&state->charge_work); |
| 4728 | } |
| 4729 | |
| 4730 | return 0; |
| 4731 | } |
| 4732 | |
| 4733 | static int a6_fish_battery_resume (struct a6_device_state *state) |
| 4734 | { |
| 4735 | if (state->plat_data->power_supply_connected == 1) { |
| 4736 | state->stop_heartbeat = false; |
| 4737 | schedule_delayed_work(&state->charge_work, |
| 4738 | A6_BATT_HB_PERIOD); |
| 4739 | |
| 4740 | power_supply_changed(&a6_fish_power_supplies[0]); |
| 4741 | } |
| 4742 | return 0; |
| 4743 | } |
| 4744 | |
| 4745 | static ssize_t a6_dock_print_name(struct switch_dev *sdev, char *buf) |
| 4746 | { |
| 4747 | bool docked = switch_get_state(sdev) != 0; |
| 4748 | return sprintf(buf, docked ? "DESK\n" : "None\n"); |
| 4749 | } |
| 4750 | |
| 4751 | static void a6_dock_update_state(struct a6_device_state *state) |
| 4752 | { |
| 4753 | unsigned int value, dock; |
| 4754 | |
| 4755 | if (state->dock_switch == NULL) { |
| 4756 | return; |
| 4757 | } |
| 4758 | |
| 4759 | a6_reg_get (&state->i2c_dev->dev, A6_REG_TS2_I2C_FLAGS_2, &value); |
| 4760 | |
| 4761 | if (a6_disable_dock_switch) { |
| 4762 | dock = 0; |
| 4763 | } else { |
| 4764 | dock = value & TS2_I2C_FLAGS_2_PUCK ? 1 : 0; |
| 4765 | } |
| 4766 | switch_set_state(state->dock_switch, dock); |
| 4767 | } |
| 4768 | |
| 4769 | static int param_set_disable_dock_switch(const char *val, |
| 4770 | struct kernel_param *kp) |
| 4771 | { |
| 4772 | struct a6_device_state *state; |
| 4773 | |
| 4774 | state = batt_state; |
| 4775 | |
| 4776 | param_set_int(val, kp); |
| 4777 | a6_dock_update_state(state); |
| 4778 | |
| 4779 | return 0; |
| 4780 | } |
| 4781 | |
| 4782 | static int a6_dock_probe(struct a6_device_state *state) |
| 4783 | { |
| 4784 | int ret; |
| 4785 | |
| 4786 | state->dock_switch = kzalloc(sizeof(struct switch_dev), GFP_KERNEL); |
| 4787 | if (state->dock_switch == NULL) { |
| 4788 | return -ENOMEM; |
| 4789 | } |
| 4790 | |
| 4791 | state->dock_switch->name = "dock"; |
| 4792 | state->dock_switch->print_name = a6_dock_print_name; |
| 4793 | |
| 4794 | ret = switch_dev_register(state->dock_switch); |
| 4795 | if (ret < 0) { |
| 4796 | kfree(state->dock_switch); |
| 4797 | state->dock_switch = NULL; |
| 4798 | return ret; |
| 4799 | } |
| 4800 | |
| 4801 | a6_dock_update_state(state); |
| 4802 | |
| 4803 | return 0; |
| 4804 | } |
| 4805 | |
| 4806 | static void a6_dock_remove(struct a6_device_state *state) |
| 4807 | { |
| 4808 | switch_dev_unregister(state->dock_switch); |
| 4809 | kfree(state->dock_switch); |
| 4810 | state->dock_switch = NULL; |
| 4811 | } |
| 4812 | |
| 4813 | /****************************************************************************** |
| 4814 | * a6_i2c_probe() |
| 4815 | ******************************************************************************/ |
| 4816 | static int a6_i2c_probe(struct i2c_client *client, const struct i2c_device_id *dev_id) |
| 4817 | { |
| 4818 | int rc = 0; |
| 4819 | struct a6_device_state* state = NULL; |
| 4820 | struct a6_platform_data* plat_data = client->dev.platform_data; |
| 4821 | struct a6_wake_ops *wake_ops = (struct a6_wake_ops *) plat_data->wake_ops; |
| 4822 | |
| 4823 | if (plat_data == NULL) { |
| 4824 | /* should this be -ENODEV ? TODO */ |
| 4825 | return ENODEV; |
| 4826 | } |
| 4827 | |
| 4828 | state = kzalloc(sizeof(struct a6_device_state), GFP_KERNEL); |
| 4829 | if(!state) { |
| 4830 | /* should this be -ENOMEM ? TODO */ |
| 4831 | return ENOMEM; |
| 4832 | } |
| 4833 | |
| 4834 | state->a2a_rd_buf = kzalloc(A2A_RD_BUFF_SIZE, GFP_KERNEL); |
| 4835 | if(!state->a2a_rd_buf) { |
| 4836 | rc = -ENOMEM; |
| 4837 | goto err0; |
| 4838 | } |
| 4839 | state->a2a_wr_buf = kzalloc(A2A_WR_BUFF_SIZE, GFP_KERNEL); |
| 4840 | if(!state->a2a_wr_buf) { |
| 4841 | rc = -ENOMEM; |
| 4842 | goto err1; |
| 4843 | } |
| 4844 | |
| 4845 | // store i2c client device in state |
| 4846 | state->i2c_dev = client; |
| 4847 | |
| 4848 | // set platform data in device-specific driver data |
| 4849 | state->plat_data = plat_data; |
| 4850 | |
| 4851 | mutex_init(&state->dev_mutex); |
| 4852 | #ifdef A6_PQ |
| 4853 | init_completion(&state->aq_enq_complete); |
| 4854 | init_completion(&state->aid_exit_complete); |
| 4855 | mutex_init(&state->aq_mutex); |
| 4856 | INIT_LIST_HEAD(&state->aq_head); |
| 4857 | #endif // A6_PQ |
| 4858 | mutex_init(&state->a6_force_wake_mutex); |
| 4859 | |
| 4860 | // zero-init wait flags |
| 4861 | bitmap_zero(state->flags, SIZE_FLAGS); |
| 4862 | |
| 4863 | // a6 external wake enabled? |
| 4864 | if (wake_ops) { |
| 4865 | set_bit(CAP_PERIODIC_WAKE, state->flags); |
| 4866 | } |
| 4867 | |
| 4868 | state->ka6d_workqueue = create_workqueue("ka6d"); |
| 4869 | if (!state->ka6d_workqueue) { |
| 4870 | printk(KERN_ERR "%s: Failed to create ka6d workqueue.\n", A6_DRIVER); |
| 4871 | goto err3; |
| 4872 | } |
| 4873 | |
| 4874 | // separate wq for handling force wake timer expiry... |
| 4875 | state->ka6d_fw_workqueue = create_workqueue("ka6d_fwd"); |
| 4876 | if (!state->ka6d_fw_workqueue) { |
| 4877 | printk(KERN_ERR "%s: Failed to create ka6d_fwd workqueue.\n", A6_DRIVER); |
| 4878 | goto err4; |
| 4879 | } |
| 4880 | |
| 4881 | init_waitqueue_head(&state->dev_busyq); |
| 4882 | |
| 4883 | INIT_WORK(&state->a6_irq_work, a6_irq_work_handler); |
| 4884 | if (test_bit(CAP_PERIODIC_WAKE, state->flags)) { |
| 4885 | INIT_WORK(&state->a6_force_wake_work, a6_force_wake_work_handler); |
| 4886 | } |
| 4887 | |
| 4888 | state->cpufreq_hold_flag = 0; |
| 4889 | |
| 4890 | // set device-specific driver data |
| 4891 | i2c_set_clientdata(client, state); |
| 4892 | |
| 4893 | // configure sbw_tck |
| 4894 | rc = gpio_request(plat_data->sbw_tck_gpio, "a6_sbwtck"); |
| 4895 | if (rc != 0) { |
| 4896 | printk(KERN_ERR "%s: request failed for sbw_tck gpio, val: %d.\n", |
| 4897 | A6_DRIVER, plat_data->sbw_tck_gpio); |
| 4898 | goto err5; |
| 4899 | } |
| 4900 | |
| 4901 | rc = gpio_direction_output(plat_data->sbw_tck_gpio, 0); |
| 4902 | if (rc != 0) { |
| 4903 | printk(KERN_ERR "%s: set direction output failed for sbw_tck gpio, val: %d.\n", |
| 4904 | A6_DRIVER, plat_data->sbw_tck_gpio); |
| 4905 | goto err6; |
| 4906 | } |
| 4907 | |
| 4908 | // configure sbw_wkup (this is the app -> a6 wakeup used in the JTAG handshaking) |
| 4909 | rc = gpio_request(plat_data->sbw_wkup_gpio, "a6_sbwwkup"); |
| 4910 | if (rc != 0) { |
| 4911 | printk(KERN_ERR "%s: request failed for sbw_wkup gpio, val: %d.\n", |
| 4912 | A6_DRIVER, plat_data->sbw_wkup_gpio); |
| 4913 | goto err6; |
| 4914 | } |
| 4915 | |
| 4916 | rc = gpio_direction_output(plat_data->sbw_wkup_gpio, 0); |
| 4917 | if (rc != 0) { |
| 4918 | printk(KERN_ERR "%s: set direction output failed for sbw_wkup gpio, val: %d.\n", |
| 4919 | A6_DRIVER, plat_data->sbw_wkup_gpio); |
| 4920 | goto err7; |
| 4921 | } |
| 4922 | |
| 4923 | // configure sbw_tdio (initially configured as output and the re-configured on use) |
| 4924 | rc = gpio_request(plat_data->sbw_tdio_gpio, "a6_sbwtdio"); |
| 4925 | if (rc != 0) { |
| 4926 | printk(KERN_ERR "%s: request failed for sbw_tdio gpio, val: %d.\n", |
| 4927 | A6_DRIVER, plat_data->sbw_tdio_gpio); |
| 4928 | goto err7; |
| 4929 | } |
| 4930 | |
| 4931 | rc = gpio_direction_output(plat_data->sbw_tdio_gpio, 1); |
| 4932 | if (rc != 0) { |
| 4933 | printk(KERN_ERR "%s: set direction output failed for sbw_tdio gpio, val: %d.\n", |
| 4934 | A6_DRIVER, plat_data->sbw_tdio_gpio); |
| 4935 | goto err8; |
| 4936 | } |
| 4937 | |
| 4938 | // configure pwr interrupt (a6 -> app)... |
| 4939 | rc = gpio_request(plat_data->pwr_gpio, "a6_pwr"); |
| 4940 | if (rc != 0) { |
| 4941 | printk(KERN_ERR "%s: request failed for pwr gpio, val: %d., err: %d\n", |
| 4942 | A6_DRIVER, plat_data->pwr_gpio, rc); |
| 4943 | goto err8; |
| 4944 | } |
| 4945 | |
| 4946 | rc = request_irq(gpio_to_irq(plat_data->pwr_gpio), a6_irq, |
| 4947 | IRQF_TRIGGER_FALLING, |
| 4948 | "a6", state); |
| 4949 | if (rc != 0) { |
| 4950 | printk(KERN_ERR "%s: request irq failed for pwr_gpio: val: %d, err: %d\n", A6_DRIVER, |
| 4951 | plat_data->pwr_gpio, rc); |
| 4952 | goto err9; |
| 4953 | } |
| 4954 | |
| 4955 | #if 0 |
| 4956 | /* register as misc device */ |
| 4957 | memcpy(&state->fops, &a6_fops, sizeof(struct file_operations)); |
| 4958 | state->mdev.minor = MISC_DYNAMIC_MINOR; |
| 4959 | state->mdev.name = plat_data->dev_name; |
| 4960 | state->mdev.fops = &state->fops; |
| 4961 | rc = misc_register(&state->mdev); |
| 4962 | if (rc < 0) { |
| 4963 | printk(KERN_ERR "%s: Failed to register as misc device\n", A6_DRIVER); |
| 4964 | goto err10; |
| 4965 | } |
| 4966 | |
| 4967 | memcpy(&state->pmem_fops, &a6_pmem_fops, sizeof(struct file_operations)); |
| 4968 | state->pmem_mdev.minor = MISC_DYNAMIC_MINOR; |
| 4969 | snprintf(state->pmem_dev_name, sizeof(state->pmem_dev_name), |
| 4970 | "%s_diag", plat_data->dev_name); |
| 4971 | state->pmem_mdev.name = state->pmem_dev_name; |
| 4972 | state->pmem_mdev.fops = &state->pmem_fops; |
| 4973 | rc = misc_register(&state->pmem_mdev); |
| 4974 | if (rc < 0) { |
| 4975 | printk(KERN_ERR "%s: Failed to register as a6 pmem misc device\n", A6_DRIVER); |
| 4976 | goto err11; |
| 4977 | } |
| 4978 | |
| 4979 | rc = a6_create_dev_files(state, &client->dev); |
| 4980 | if (rc < 0) { |
| 4981 | goto err12; |
| 4982 | } |
| 4983 | #endif |
| 4984 | |
| 4985 | #ifdef A6_PQ |
| 4986 | rc = a6_start_ai_dispatch_task(state); |
| 4987 | if (rc < 0) { |
| 4988 | goto err13; |
| 4989 | } |
| 4990 | #endif // A6_PQ |
| 4991 | |
| 4992 | // ignore errors during initialization: these may be symptomatic of missing/corrupt |
| 4993 | // a6 fw which will need to be remedied via the A6_IOCTL_SET_FW_DATA ioctl to |
| 4994 | // re-flash fw. so its important the driver initializes successfully to handle |
| 4995 | // the request. |
| 4996 | rc = a6_init_state(client); |
| 4997 | if (rc < 0) { |
| 4998 | printk(KERN_ERR "%s: failed to initialize, err: %d\n", A6_DRIVER, rc); |
| 4999 | rc = 0; |
| 5000 | } |
| 5001 | |
| 5002 | // not needed: pending work items will "flow through" if no status changes |
| 5003 | // are detected... |
| 5004 | //flush_workqueue(ka6d_workqueue); |
| 5005 | |
| 5006 | #ifdef A6_PQ |
| 5007 | #ifdef A6_DEBUG |
| 5008 | rc = a6_create_debug_interface(state); |
| 5009 | if (rc < 0) { |
| 5010 | printk(KERN_ERR "%s: Failed to create A6 debug interface.\n", A6_DRIVER); |
| 5011 | rc = 0; |
| 5012 | } |
| 5013 | #endif |
| 5014 | #endif |
| 5015 | |
| 5016 | if (plat_data->power_supply_connected == 1){ |
| 5017 | if ( (rc = a6_fish_battery_probe (state)) < 0) { |
| 5018 | printk(KERN_ERR "%s: Failed to register power supplies, rc: %d.\n", |
| 5019 | A6_DRIVER, rc); |
| 5020 | rc = 0; |
| 5021 | } |
| 5022 | |
| 5023 | batt_state = state; |
| 5024 | |
| 5025 | if ((rc = a6_dock_probe(state)) < 0) { |
| 5026 | printk(KERN_ERR "%s: Failed to register dock device, rc: %d.\n", |
| 5027 | A6_DRIVER, rc); |
| 5028 | rc = 0; |
| 5029 | } |
| 5030 | } |
| 5031 | |
| 5032 | printk(KERN_NOTICE "A6 driver initialized successfully!\n"); |
| 5033 | return 0; |
| 5034 | |
| 5035 | err13: |
| 5036 | #if 0 |
| 5037 | a6_remove_dev_files(state, &client->dev); |
| 5038 | err12: |
| 5039 | misc_register(&state->pmem_mdev); |
| 5040 | err11: |
| 5041 | misc_unregister(&state->mdev); |
| 5042 | err10: |
| 5043 | #endif |
| 5044 | free_irq(gpio_to_irq(plat_data->pwr_gpio), state); |
| 5045 | err9: |
| 5046 | gpio_free(plat_data->pwr_gpio); |
| 5047 | err8: |
| 5048 | gpio_free(plat_data->sbw_tdio_gpio); |
| 5049 | err7: |
| 5050 | gpio_free(plat_data->sbw_wkup_gpio); |
| 5051 | err6: |
| 5052 | gpio_free(plat_data->sbw_tck_gpio); |
| 5053 | err5: |
| 5054 | destroy_workqueue(state->ka6d_fw_workqueue); |
| 5055 | err4: |
| 5056 | destroy_workqueue(state->ka6d_workqueue); |
| 5057 | err3: |
| 5058 | kfree(state->a2a_wr_buf); |
| 5059 | err1: |
| 5060 | kfree(state->a2a_rd_buf); |
| 5061 | err0: |
| 5062 | kfree(state); |
| 5063 | |
| 5064 | return rc; |
| 5065 | } |
| 5066 | |
| 5067 | /****************************************************************************** |
| 5068 | * a6_i2c_remove() |
| 5069 | ******************************************************************************/ |
| 5070 | static int a6_i2c_remove(struct i2c_client *client) |
| 5071 | { |
| 5072 | struct a6_device_state* state = (struct a6_device_state*)i2c_get_clientdata(client); |
| 5073 | |
| 5074 | if (state->plat_data->power_supply_connected == 1){ |
| 5075 | a6_fish_battery_remove (state); |
| 5076 | } |
| 5077 | if (state->dock_switch) { |
| 5078 | a6_dock_remove(state); |
| 5079 | } |
| 5080 | |
| 5081 | #if 0 |
| 5082 | a6_remove_dev_files(state, &client->dev); |
| 5083 | #endif |
| 5084 | |
| 5085 | if (state->ka6d_workqueue) { |
| 5086 | destroy_workqueue(state->ka6d_workqueue); |
| 5087 | } |
| 5088 | |
| 5089 | if (state->ka6d_fw_workqueue) { |
| 5090 | destroy_workqueue(state->ka6d_fw_workqueue); |
| 5091 | } |
| 5092 | |
| 5093 | if (state->a2a_rd_buf) { |
| 5094 | kfree(state->a2a_rd_buf); |
| 5095 | } |
| 5096 | |
| 5097 | if (state->a2a_wr_buf) { |
| 5098 | kfree(state->a2a_wr_buf); |
| 5099 | } |
| 5100 | |
| 5101 | return 0; |
| 5102 | } |
| 5103 | |
| 5104 | #ifdef CONFIG_PM |
| 5105 | /****************************************************************************** |
| 5106 | * a6_i2c_suspend |
| 5107 | ******************************************************************************/ |
| 5108 | static int a6_i2c_suspend(struct i2c_client *dev, pm_message_t event) |
| 5109 | { |
| 5110 | struct a6_device_state* state = (struct a6_device_state*)i2c_get_clientdata(dev); |
| 5111 | |
| 5112 | set_bit(IS_SUSPENDED, state->flags); |
| 5113 | // configure a6 irq as wake-source to handle wake on a6 notifications |
| 5114 | // (charge source detection, various threshold transgressions and emergency |
| 5115 | // reset detection)... |
| 5116 | if (state->plat_data->pwr_gpio_wakeup_cap) { |
| 5117 | enable_irq_wake(gpio_to_irq(state->plat_data->pwr_gpio)); |
| 5118 | } |
| 5119 | |
| 5120 | a6_fish_battery_suspend (state); |
| 5121 | |
| 5122 | return 0; |
| 5123 | } |
| 5124 | |
| 5125 | /****************************************************************************** |
| 5126 | * a6_i2c_resume |
| 5127 | ******************************************************************************/ |
| 5128 | static int a6_i2c_resume (struct i2c_client *dev) |
| 5129 | { |
| 5130 | struct a6_device_state* state = (struct a6_device_state*)i2c_get_clientdata(dev); |
| 5131 | |
| 5132 | // un-configure a6 irq as wake-source... |
| 5133 | if (state->plat_data->pwr_gpio_wakeup_cap) { |
| 5134 | disable_irq_wake(gpio_to_irq(state->plat_data->pwr_gpio)); |
| 5135 | } |
| 5136 | |
| 5137 | clear_bit(IS_SUSPENDED, state->flags); |
| 5138 | if (test_and_clear_bit(INT_PENDING, state->flags)) { |
| 5139 | queue_work(state->ka6d_workqueue, &state->a6_irq_work); |
| 5140 | } |
| 5141 | |
| 5142 | a6_fish_battery_resume (state); |
| 5143 | |
| 5144 | return 0; |
| 5145 | } |
| 5146 | #else |
| 5147 | #define a6_i2c_suspend NULL |
| 5148 | #define a6_i2c_resume NULL |
| 5149 | #endif /* CONFIG_PM */ |
| 5150 | |
| 5151 | static const struct i2c_device_id a6_ids[] = { |
| 5152 | {A6_DEVICE_0, }, |
| 5153 | {A6_DEVICE_1, }, |
| 5154 | {}, |
| 5155 | }; |
| 5156 | |
| 5157 | MODULE_DEVICE_TABLE(i2c, a6_ids); |
| 5158 | |
| 5159 | |
| 5160 | static struct i2c_driver a6_i2c_driver = { |
| 5161 | .driver = { |
| 5162 | .name = A6_DRIVER, |
| 5163 | .owner = THIS_MODULE, |
| 5164 | }, |
| 5165 | .id_table = a6_ids, |
| 5166 | .probe = a6_i2c_probe, |
| 5167 | .remove = __devexit_p(a6_i2c_remove), |
| 5168 | .suspend = a6_i2c_suspend, |
| 5169 | .resume = a6_i2c_resume, |
| 5170 | }; |
| 5171 | |
| 5172 | /********************************************************************************* |
| 5173 | * a6_module_init(void) |
| 5174 | ***********************************************************************************/ |
| 5175 | static int __init a6_module_init(void) |
| 5176 | { |
| 5177 | printk(KERN_INFO "Before a6 call to i2c_add_driver.\n"); |
| 5178 | return i2c_add_driver(&a6_i2c_driver); |
| 5179 | } |
| 5180 | |
| 5181 | /********************************************************************************* |
| 5182 | * cy8c24894_module_exit(void) |
| 5183 | ***********************************************************************************/ |
| 5184 | static void __exit a6_module_exit(void) |
| 5185 | { |
| 5186 | i2c_del_driver(&a6_i2c_driver); |
| 5187 | } |
| 5188 | |
| 5189 | module_init(a6_module_init); |
| 5190 | module_exit(a6_module_exit); |
| 5191 | |
| 5192 | MODULE_DESCRIPTION("A6 driver"); |
| 5193 | MODULE_LICENSE("GPL"); |