David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 1 | /* |
Ike Panhc | a4b5a27 | 2010-12-13 18:00:48 +0800 | [diff] [blame] | 2 | * ideapad-laptop.c - Lenovo IdeaPad ACPI Extras |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 3 | * |
| 4 | * Copyright © 2010 Intel Corporation |
| 5 | * Copyright © 2010 David Woodhouse <dwmw2@infradead.org> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 20 | * 02110-1301, USA. |
| 21 | */ |
| 22 | |
| 23 | #include <linux/kernel.h> |
| 24 | #include <linux/module.h> |
| 25 | #include <linux/init.h> |
| 26 | #include <linux/types.h> |
| 27 | #include <acpi/acpi_bus.h> |
| 28 | #include <acpi/acpi_drivers.h> |
| 29 | #include <linux/rfkill.h> |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 30 | #include <linux/platform_device.h> |
Ike Panhc | f63409a | 2010-12-13 18:00:38 +0800 | [diff] [blame] | 31 | #include <linux/input.h> |
| 32 | #include <linux/input/sparse-keymap.h> |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 33 | |
| 34 | #define IDEAPAD_DEV_CAMERA 0 |
| 35 | #define IDEAPAD_DEV_WLAN 1 |
| 36 | #define IDEAPAD_DEV_BLUETOOTH 2 |
| 37 | #define IDEAPAD_DEV_3G 3 |
| 38 | #define IDEAPAD_DEV_KILLSW 4 |
| 39 | |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 40 | struct ideapad_private { |
Ike Panhc | 26c81d5 | 2010-10-01 15:39:40 +0800 | [diff] [blame] | 41 | acpi_handle handle; |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 42 | struct rfkill *rfk[5]; |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 43 | struct platform_device *platform_device; |
Ike Panhc | f63409a | 2010-12-13 18:00:38 +0800 | [diff] [blame] | 44 | struct input_dev *inputdev; |
Ike Panhc | fa08359 | 2010-10-01 15:39:59 +0800 | [diff] [blame] | 45 | } *ideapad_priv; |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 46 | |
| 47 | static struct { |
| 48 | char *name; |
Ike Panhc | dfa7f6f | 2010-10-01 15:39:29 +0800 | [diff] [blame] | 49 | int cfgbit; |
Ike Panhc | fa08359 | 2010-10-01 15:39:59 +0800 | [diff] [blame] | 50 | int opcode; |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 51 | int type; |
| 52 | } ideapad_rfk_data[] = { |
Ike Panhc | fa08359 | 2010-10-01 15:39:59 +0800 | [diff] [blame] | 53 | { "ideapad_camera", 19, 0x1E, NUM_RFKILL_TYPES }, |
| 54 | { "ideapad_wlan", 18, 0x15, RFKILL_TYPE_WLAN }, |
| 55 | { "ideapad_bluetooth", 16, 0x17, RFKILL_TYPE_BLUETOOTH }, |
| 56 | { "ideapad_3g", 17, 0x20, RFKILL_TYPE_WWAN }, |
| 57 | { "ideapad_killsw", 0, 0, RFKILL_TYPE_WLAN } |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 58 | }; |
| 59 | |
Ike Panhc | bfa97b7 | 2010-10-01 15:40:22 +0800 | [diff] [blame] | 60 | static bool no_bt_rfkill; |
| 61 | module_param(no_bt_rfkill, bool, 0444); |
| 62 | MODULE_PARM_DESC(no_bt_rfkill, "No rfkill for bluetooth."); |
| 63 | |
Ike Panhc | 6a09f21 | 2010-10-01 15:38:46 +0800 | [diff] [blame] | 64 | /* |
| 65 | * ACPI Helpers |
| 66 | */ |
| 67 | #define IDEAPAD_EC_TIMEOUT (100) /* in ms */ |
| 68 | |
| 69 | static int read_method_int(acpi_handle handle, const char *method, int *val) |
| 70 | { |
| 71 | acpi_status status; |
| 72 | unsigned long long result; |
| 73 | |
| 74 | status = acpi_evaluate_integer(handle, (char *)method, NULL, &result); |
| 75 | if (ACPI_FAILURE(status)) { |
| 76 | *val = -1; |
| 77 | return -1; |
| 78 | } else { |
| 79 | *val = result; |
| 80 | return 0; |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | static int method_vpcr(acpi_handle handle, int cmd, int *ret) |
| 85 | { |
| 86 | acpi_status status; |
| 87 | unsigned long long result; |
| 88 | struct acpi_object_list params; |
| 89 | union acpi_object in_obj; |
| 90 | |
| 91 | params.count = 1; |
| 92 | params.pointer = &in_obj; |
| 93 | in_obj.type = ACPI_TYPE_INTEGER; |
| 94 | in_obj.integer.value = cmd; |
| 95 | |
| 96 | status = acpi_evaluate_integer(handle, "VPCR", ¶ms, &result); |
| 97 | |
| 98 | if (ACPI_FAILURE(status)) { |
| 99 | *ret = -1; |
| 100 | return -1; |
| 101 | } else { |
| 102 | *ret = result; |
| 103 | return 0; |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | static int method_vpcw(acpi_handle handle, int cmd, int data) |
| 108 | { |
| 109 | struct acpi_object_list params; |
| 110 | union acpi_object in_obj[2]; |
| 111 | acpi_status status; |
| 112 | |
| 113 | params.count = 2; |
| 114 | params.pointer = in_obj; |
| 115 | in_obj[0].type = ACPI_TYPE_INTEGER; |
| 116 | in_obj[0].integer.value = cmd; |
| 117 | in_obj[1].type = ACPI_TYPE_INTEGER; |
| 118 | in_obj[1].integer.value = data; |
| 119 | |
| 120 | status = acpi_evaluate_object(handle, "VPCW", ¶ms, NULL); |
| 121 | if (status != AE_OK) |
| 122 | return -1; |
| 123 | return 0; |
| 124 | } |
| 125 | |
| 126 | static int read_ec_data(acpi_handle handle, int cmd, unsigned long *data) |
| 127 | { |
| 128 | int val; |
| 129 | unsigned long int end_jiffies; |
| 130 | |
| 131 | if (method_vpcw(handle, 1, cmd)) |
| 132 | return -1; |
| 133 | |
| 134 | for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1; |
| 135 | time_before(jiffies, end_jiffies);) { |
| 136 | schedule(); |
| 137 | if (method_vpcr(handle, 1, &val)) |
| 138 | return -1; |
| 139 | if (val == 0) { |
| 140 | if (method_vpcr(handle, 0, &val)) |
| 141 | return -1; |
| 142 | *data = val; |
| 143 | return 0; |
| 144 | } |
| 145 | } |
| 146 | pr_err("timeout in read_ec_cmd\n"); |
| 147 | return -1; |
| 148 | } |
| 149 | |
| 150 | static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data) |
| 151 | { |
| 152 | int val; |
| 153 | unsigned long int end_jiffies; |
| 154 | |
| 155 | if (method_vpcw(handle, 0, data)) |
| 156 | return -1; |
| 157 | if (method_vpcw(handle, 1, cmd)) |
| 158 | return -1; |
| 159 | |
| 160 | for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1; |
| 161 | time_before(jiffies, end_jiffies);) { |
| 162 | schedule(); |
| 163 | if (method_vpcr(handle, 1, &val)) |
| 164 | return -1; |
| 165 | if (val == 0) |
| 166 | return 0; |
| 167 | } |
| 168 | pr_err("timeout in write_ec_cmd\n"); |
| 169 | return -1; |
| 170 | } |
Ike Panhc | 6a09f21 | 2010-10-01 15:38:46 +0800 | [diff] [blame] | 171 | |
Ike Panhc | a4b5a27 | 2010-12-13 18:00:48 +0800 | [diff] [blame] | 172 | /* |
| 173 | * camera power |
| 174 | */ |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 175 | static ssize_t show_ideapad_cam(struct device *dev, |
| 176 | struct device_attribute *attr, |
| 177 | char *buf) |
| 178 | { |
Ike Panhc | 26c81d5 | 2010-10-01 15:39:40 +0800 | [diff] [blame] | 179 | struct ideapad_private *priv = dev_get_drvdata(dev); |
| 180 | acpi_handle handle = priv->handle; |
| 181 | unsigned long result; |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 182 | |
Ike Panhc | 26c81d5 | 2010-10-01 15:39:40 +0800 | [diff] [blame] | 183 | if (read_ec_data(handle, 0x1D, &result)) |
| 184 | return sprintf(buf, "-1\n"); |
| 185 | return sprintf(buf, "%lu\n", result); |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 186 | } |
| 187 | |
| 188 | static ssize_t store_ideapad_cam(struct device *dev, |
| 189 | struct device_attribute *attr, |
| 190 | const char *buf, size_t count) |
| 191 | { |
Ike Panhc | 26c81d5 | 2010-10-01 15:39:40 +0800 | [diff] [blame] | 192 | struct ideapad_private *priv = dev_get_drvdata(dev); |
| 193 | acpi_handle handle = priv->handle; |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 194 | int ret, state; |
| 195 | |
| 196 | if (!count) |
| 197 | return 0; |
| 198 | if (sscanf(buf, "%i", &state) != 1) |
| 199 | return -EINVAL; |
Ike Panhc | 26c81d5 | 2010-10-01 15:39:40 +0800 | [diff] [blame] | 200 | ret = write_ec_cmd(handle, 0x1E, state); |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 201 | if (ret < 0) |
| 202 | return ret; |
| 203 | return count; |
| 204 | } |
| 205 | |
| 206 | static DEVICE_ATTR(camera_power, 0644, show_ideapad_cam, store_ideapad_cam); |
| 207 | |
Ike Panhc | a4b5a27 | 2010-12-13 18:00:48 +0800 | [diff] [blame] | 208 | /* |
| 209 | * Rfkill |
| 210 | */ |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 211 | static int ideapad_rfk_set(void *data, bool blocked) |
| 212 | { |
| 213 | int device = (unsigned long)data; |
| 214 | |
| 215 | if (device == IDEAPAD_DEV_KILLSW) |
| 216 | return -EINVAL; |
Ike Panhc | fa08359 | 2010-10-01 15:39:59 +0800 | [diff] [blame] | 217 | |
| 218 | return write_ec_cmd(ideapad_priv->handle, |
| 219 | ideapad_rfk_data[device].opcode, |
| 220 | !blocked); |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 221 | } |
| 222 | |
| 223 | static struct rfkill_ops ideapad_rfk_ops = { |
| 224 | .set_block = ideapad_rfk_set, |
| 225 | }; |
| 226 | |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 227 | static void ideapad_sync_rfk_state(struct acpi_device *adevice) |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 228 | { |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 229 | struct ideapad_private *priv = dev_get_drvdata(&adevice->dev); |
Ike Panhc | 2b7266b | 2010-10-01 15:39:49 +0800 | [diff] [blame] | 230 | acpi_handle handle = priv->handle; |
| 231 | unsigned long hw_blocked; |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 232 | int i; |
| 233 | |
Ike Panhc | 2b7266b | 2010-10-01 15:39:49 +0800 | [diff] [blame] | 234 | if (read_ec_data(handle, 0x23, &hw_blocked)) |
| 235 | return; |
| 236 | hw_blocked = !hw_blocked; |
| 237 | |
| 238 | for (i = IDEAPAD_DEV_WLAN; i <= IDEAPAD_DEV_KILLSW; i++) |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 239 | if (priv->rfk[i]) |
| 240 | rfkill_set_hw_state(priv->rfk[i], hw_blocked); |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 241 | } |
| 242 | |
Ike Panhc | a4b5a27 | 2010-12-13 18:00:48 +0800 | [diff] [blame] | 243 | static int __devinit ideapad_register_rfkill(struct acpi_device *adevice, |
| 244 | int dev) |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 245 | { |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 246 | struct ideapad_private *priv = dev_get_drvdata(&adevice->dev); |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 247 | int ret; |
Ike Panhc | 2b7266b | 2010-10-01 15:39:49 +0800 | [diff] [blame] | 248 | unsigned long sw_blocked; |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 249 | |
Ike Panhc | bfa97b7 | 2010-10-01 15:40:22 +0800 | [diff] [blame] | 250 | if (no_bt_rfkill && |
| 251 | (ideapad_rfk_data[dev].type == RFKILL_TYPE_BLUETOOTH)) { |
| 252 | /* Force to enable bluetooth when no_bt_rfkill=1 */ |
| 253 | write_ec_cmd(ideapad_priv->handle, |
| 254 | ideapad_rfk_data[dev].opcode, 1); |
| 255 | return 0; |
| 256 | } |
| 257 | |
Ike Panhc | 2b7266b | 2010-10-01 15:39:49 +0800 | [diff] [blame] | 258 | priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name, &adevice->dev, |
| 259 | ideapad_rfk_data[dev].type, &ideapad_rfk_ops, |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 260 | (void *)(long)dev); |
| 261 | if (!priv->rfk[dev]) |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 262 | return -ENOMEM; |
| 263 | |
Ike Panhc | 2b7266b | 2010-10-01 15:39:49 +0800 | [diff] [blame] | 264 | if (read_ec_data(ideapad_priv->handle, ideapad_rfk_data[dev].opcode-1, |
| 265 | &sw_blocked)) { |
| 266 | rfkill_init_sw_state(priv->rfk[dev], 0); |
| 267 | } else { |
| 268 | sw_blocked = !sw_blocked; |
| 269 | rfkill_init_sw_state(priv->rfk[dev], sw_blocked); |
| 270 | } |
| 271 | |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 272 | ret = rfkill_register(priv->rfk[dev]); |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 273 | if (ret) { |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 274 | rfkill_destroy(priv->rfk[dev]); |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 275 | return ret; |
| 276 | } |
| 277 | return 0; |
| 278 | } |
| 279 | |
Ike Panhc | a4b5a27 | 2010-12-13 18:00:48 +0800 | [diff] [blame] | 280 | static void __devexit ideapad_unregister_rfkill(struct acpi_device *adevice, |
| 281 | int dev) |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 282 | { |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 283 | struct ideapad_private *priv = dev_get_drvdata(&adevice->dev); |
| 284 | |
| 285 | if (!priv->rfk[dev]) |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 286 | return; |
| 287 | |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 288 | rfkill_unregister(priv->rfk[dev]); |
| 289 | rfkill_destroy(priv->rfk[dev]); |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 290 | } |
| 291 | |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 292 | /* |
| 293 | * Platform device |
| 294 | */ |
Ike Panhc | c9f718d | 2010-12-13 18:00:27 +0800 | [diff] [blame] | 295 | static struct attribute *ideapad_attributes[] = { |
| 296 | &dev_attr_camera_power.attr, |
| 297 | NULL |
| 298 | }; |
| 299 | |
| 300 | static struct attribute_group ideapad_attribute_group = { |
| 301 | .attrs = ideapad_attributes |
| 302 | }; |
| 303 | |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 304 | static int __devinit ideapad_platform_init(struct ideapad_private *priv) |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 305 | { |
| 306 | int result; |
| 307 | |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 308 | priv->platform_device = platform_device_alloc("ideapad", -1); |
| 309 | if (!priv->platform_device) |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 310 | return -ENOMEM; |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 311 | platform_set_drvdata(priv->platform_device, priv); |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 312 | |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 313 | result = platform_device_add(priv->platform_device); |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 314 | if (result) |
| 315 | goto fail_platform_device; |
| 316 | |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 317 | result = sysfs_create_group(&priv->platform_device->dev.kobj, |
Ike Panhc | c9f718d | 2010-12-13 18:00:27 +0800 | [diff] [blame] | 318 | &ideapad_attribute_group); |
| 319 | if (result) |
| 320 | goto fail_sysfs; |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 321 | return 0; |
| 322 | |
Ike Panhc | c9f718d | 2010-12-13 18:00:27 +0800 | [diff] [blame] | 323 | fail_sysfs: |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 324 | platform_device_del(priv->platform_device); |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 325 | fail_platform_device: |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 326 | platform_device_put(priv->platform_device); |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 327 | return result; |
| 328 | } |
| 329 | |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 330 | static void ideapad_platform_exit(struct ideapad_private *priv) |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 331 | { |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 332 | sysfs_remove_group(&priv->platform_device->dev.kobj, |
Ike Panhc | c9f718d | 2010-12-13 18:00:27 +0800 | [diff] [blame] | 333 | &ideapad_attribute_group); |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 334 | platform_device_unregister(priv->platform_device); |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 335 | } |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 336 | |
Ike Panhc | f63409a | 2010-12-13 18:00:38 +0800 | [diff] [blame] | 337 | /* |
| 338 | * input device |
| 339 | */ |
| 340 | static const struct key_entry ideapad_keymap[] = { |
| 341 | { KE_KEY, 0x06, { KEY_SWITCHVIDEOMODE } }, |
| 342 | { KE_KEY, 0x0D, { KEY_WLAN } }, |
| 343 | { KE_END, 0 }, |
| 344 | }; |
| 345 | |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 346 | static int __devinit ideapad_input_init(struct ideapad_private *priv) |
Ike Panhc | f63409a | 2010-12-13 18:00:38 +0800 | [diff] [blame] | 347 | { |
| 348 | struct input_dev *inputdev; |
| 349 | int error; |
| 350 | |
| 351 | inputdev = input_allocate_device(); |
| 352 | if (!inputdev) { |
| 353 | pr_info("Unable to allocate input device\n"); |
| 354 | return -ENOMEM; |
| 355 | } |
| 356 | |
| 357 | inputdev->name = "Ideapad extra buttons"; |
| 358 | inputdev->phys = "ideapad/input0"; |
| 359 | inputdev->id.bustype = BUS_HOST; |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 360 | inputdev->dev.parent = &priv->platform_device->dev; |
Ike Panhc | f63409a | 2010-12-13 18:00:38 +0800 | [diff] [blame] | 361 | |
| 362 | error = sparse_keymap_setup(inputdev, ideapad_keymap, NULL); |
| 363 | if (error) { |
| 364 | pr_err("Unable to setup input device keymap\n"); |
| 365 | goto err_free_dev; |
| 366 | } |
| 367 | |
| 368 | error = input_register_device(inputdev); |
| 369 | if (error) { |
| 370 | pr_err("Unable to register input device\n"); |
| 371 | goto err_free_keymap; |
| 372 | } |
| 373 | |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 374 | priv->inputdev = inputdev; |
Ike Panhc | f63409a | 2010-12-13 18:00:38 +0800 | [diff] [blame] | 375 | return 0; |
| 376 | |
| 377 | err_free_keymap: |
| 378 | sparse_keymap_free(inputdev); |
| 379 | err_free_dev: |
| 380 | input_free_device(inputdev); |
| 381 | return error; |
| 382 | } |
| 383 | |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 384 | static void __devexit ideapad_input_exit(struct ideapad_private *priv) |
Ike Panhc | f63409a | 2010-12-13 18:00:38 +0800 | [diff] [blame] | 385 | { |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 386 | sparse_keymap_free(priv->inputdev); |
| 387 | input_unregister_device(priv->inputdev); |
| 388 | priv->inputdev = NULL; |
Ike Panhc | f63409a | 2010-12-13 18:00:38 +0800 | [diff] [blame] | 389 | } |
| 390 | |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 391 | static void ideapad_input_report(struct ideapad_private *priv, |
| 392 | unsigned long scancode) |
Ike Panhc | f63409a | 2010-12-13 18:00:38 +0800 | [diff] [blame] | 393 | { |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 394 | sparse_keymap_report_event(priv->inputdev, scancode, 1, true); |
Ike Panhc | f63409a | 2010-12-13 18:00:38 +0800 | [diff] [blame] | 395 | } |
Ike Panhc | f63409a | 2010-12-13 18:00:38 +0800 | [diff] [blame] | 396 | |
Ike Panhc | a4b5a27 | 2010-12-13 18:00:48 +0800 | [diff] [blame] | 397 | /* |
| 398 | * module init/exit |
| 399 | */ |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 400 | static const struct acpi_device_id ideapad_device_ids[] = { |
| 401 | { "VPC2004", 0}, |
| 402 | { "", 0}, |
| 403 | }; |
| 404 | MODULE_DEVICE_TABLE(acpi, ideapad_device_ids); |
| 405 | |
Ike Panhc | a4b5a27 | 2010-12-13 18:00:48 +0800 | [diff] [blame] | 406 | static int __devinit ideapad_acpi_add(struct acpi_device *adevice) |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 407 | { |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 408 | int ret, i, cfg; |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 409 | struct ideapad_private *priv; |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 410 | |
Ike Panhc | 6f8371c | 2010-10-01 15:39:14 +0800 | [diff] [blame] | 411 | if (read_method_int(adevice->handle, "_CFG", &cfg)) |
| 412 | return -ENODEV; |
| 413 | |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 414 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); |
| 415 | if (!priv) |
| 416 | return -ENOMEM; |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 417 | ideapad_priv = priv; |
Ike Panhc | c9f718d | 2010-12-13 18:00:27 +0800 | [diff] [blame] | 418 | priv->handle = adevice->handle; |
| 419 | dev_set_drvdata(&adevice->dev, priv); |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 420 | |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 421 | ret = ideapad_platform_init(priv); |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 422 | if (ret) |
| 423 | goto platform_failed; |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 424 | |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 425 | ret = ideapad_input_init(priv); |
Ike Panhc | f63409a | 2010-12-13 18:00:38 +0800 | [diff] [blame] | 426 | if (ret) |
| 427 | goto input_failed; |
| 428 | |
Ike Panhc | c9f718d | 2010-12-13 18:00:27 +0800 | [diff] [blame] | 429 | for (i = IDEAPAD_DEV_WLAN; i < IDEAPAD_DEV_KILLSW; i++) { |
| 430 | if (test_bit(ideapad_rfk_data[i].cfgbit, (unsigned long *)&cfg)) |
| 431 | ideapad_register_rfkill(adevice, i); |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 432 | } |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 433 | ideapad_sync_rfk_state(adevice); |
Ike Panhc | c9f718d | 2010-12-13 18:00:27 +0800 | [diff] [blame] | 434 | |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 435 | return 0; |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 436 | |
Ike Panhc | f63409a | 2010-12-13 18:00:38 +0800 | [diff] [blame] | 437 | input_failed: |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 438 | ideapad_platform_exit(priv); |
Ike Panhc | 98ee691 | 2010-12-13 18:00:15 +0800 | [diff] [blame] | 439 | platform_failed: |
| 440 | kfree(priv); |
| 441 | return ret; |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 442 | } |
| 443 | |
Ike Panhc | a4b5a27 | 2010-12-13 18:00:48 +0800 | [diff] [blame] | 444 | static int __devexit ideapad_acpi_remove(struct acpi_device *adevice, int type) |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 445 | { |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 446 | struct ideapad_private *priv = dev_get_drvdata(&adevice->dev); |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 447 | int i; |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 448 | |
Ike Panhc | c9f718d | 2010-12-13 18:00:27 +0800 | [diff] [blame] | 449 | for (i = IDEAPAD_DEV_WLAN; i < IDEAPAD_DEV_KILLSW; i++) |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 450 | ideapad_unregister_rfkill(adevice, i); |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 451 | ideapad_input_exit(priv); |
| 452 | ideapad_platform_exit(priv); |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 453 | dev_set_drvdata(&adevice->dev, NULL); |
| 454 | kfree(priv); |
Ike Panhc | c9f718d | 2010-12-13 18:00:27 +0800 | [diff] [blame] | 455 | |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 456 | return 0; |
| 457 | } |
| 458 | |
David Woodhouse | ce32632 | 2010-08-11 17:59:35 +0100 | [diff] [blame] | 459 | static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event) |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 460 | { |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 461 | struct ideapad_private *priv = dev_get_drvdata(&adevice->dev); |
Ike Panhc | 8e7d354 | 2010-10-01 15:39:05 +0800 | [diff] [blame] | 462 | acpi_handle handle = adevice->handle; |
| 463 | unsigned long vpc1, vpc2, vpc_bit; |
| 464 | |
| 465 | if (read_ec_data(handle, 0x10, &vpc1)) |
| 466 | return; |
| 467 | if (read_ec_data(handle, 0x1A, &vpc2)) |
| 468 | return; |
| 469 | |
| 470 | vpc1 = (vpc2 << 8) | vpc1; |
| 471 | for (vpc_bit = 0; vpc_bit < 16; vpc_bit++) { |
| 472 | if (test_bit(vpc_bit, &vpc1)) { |
| 473 | if (vpc_bit == 9) |
| 474 | ideapad_sync_rfk_state(adevice); |
Ike Panhc | f63409a | 2010-12-13 18:00:38 +0800 | [diff] [blame] | 475 | else |
Ike Panhc | 8693ae8 | 2010-12-13 18:01:01 +0800 | [diff] [blame^] | 476 | ideapad_input_report(priv, vpc_bit); |
Ike Panhc | 8e7d354 | 2010-10-01 15:39:05 +0800 | [diff] [blame] | 477 | } |
| 478 | } |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 479 | } |
| 480 | |
| 481 | static struct acpi_driver ideapad_acpi_driver = { |
| 482 | .name = "ideapad_acpi", |
| 483 | .class = "IdeaPad", |
| 484 | .ids = ideapad_device_ids, |
| 485 | .ops.add = ideapad_acpi_add, |
| 486 | .ops.remove = ideapad_acpi_remove, |
| 487 | .ops.notify = ideapad_acpi_notify, |
| 488 | .owner = THIS_MODULE, |
| 489 | }; |
| 490 | |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 491 | static int __init ideapad_acpi_module_init(void) |
| 492 | { |
Ike Panhc | a4b5a27 | 2010-12-13 18:00:48 +0800 | [diff] [blame] | 493 | return acpi_bus_register_driver(&ideapad_acpi_driver); |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 494 | } |
| 495 | |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 496 | static void __exit ideapad_acpi_module_exit(void) |
| 497 | { |
| 498 | acpi_bus_unregister_driver(&ideapad_acpi_driver); |
David Woodhouse | 58ac7aa | 2010-08-10 23:44:05 +0100 | [diff] [blame] | 499 | } |
| 500 | |
| 501 | MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); |
| 502 | MODULE_DESCRIPTION("IdeaPad ACPI Extras"); |
| 503 | MODULE_LICENSE("GPL"); |
| 504 | |
| 505 | module_init(ideapad_acpi_module_init); |
| 506 | module_exit(ideapad_acpi_module_exit); |