Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/sound/oss/dmasound/tas_common.h b/sound/oss/dmasound/tas_common.h
new file mode 100644
index 0000000..3a6d486
--- /dev/null
+++ b/sound/oss/dmasound/tas_common.h
@@ -0,0 +1,284 @@
+#ifndef _TAS_COMMON_H_
+#define _TAS_COMMON_H_
+
+#include <linux/i2c.h>
+#include <linux/soundcard.h>
+#include <asm/string.h>
+
+#define I2C_DRIVERID_TAS_BASE (0xFEBA)
+
+#define SET_4_20(shadow, offset, val) \
+ do { \
+ (shadow)[(offset)+0] = ((val) >> 16) & 0xff; \
+ (shadow)[(offset)+1] = ((val) >> 8) & 0xff; \
+ (shadow)[(offset)+2] = ((val) >> 0) & 0xff; \
+ } while (0)
+
+#define GET_4_20(shadow, offset) \
+ (((u_int)((shadow)[(offset)+0]) << 16) | \
+ ((u_int)((shadow)[(offset)+1]) << 8) | \
+ ((u_int)((shadow)[(offset)+2]) << 0))
+
+
+#define TAS_BIQUAD_FAST_LOAD 0x01
+
+#define TAS_DRCE_ENABLE 0x01
+#define TAS_DRCE_ABOVE_RATIO 0x02
+#define TAS_DRCE_BELOW_RATIO 0x04
+#define TAS_DRCE_THRESHOLD 0x08
+#define TAS_DRCE_ENERGY 0x10
+#define TAS_DRCE_ATTACK 0x20
+#define TAS_DRCE_DECAY 0x40
+
+#define TAS_DRCE_ALL 0x7f
+
+
+#define TAS_OUTPUT_HEADPHONES 0x00
+#define TAS_OUTPUT_INTERNAL_SPKR 0x01
+#define TAS_OUTPUT_EXTERNAL_SPKR 0x02
+
+
+union tas_biquad_t {
+ struct {
+ int b0,b1,b2,a1,a2;
+ } coeff;
+ int buf[5];
+};
+
+struct tas_biquad_ctrl_t {
+ u_int channel:4;
+ u_int filter:4;
+
+ union tas_biquad_t data;
+};
+
+struct tas_biquad_ctrl_list_t {
+ int flags;
+ int filter_count;
+ struct tas_biquad_ctrl_t biquads[0];
+};
+
+struct tas_ratio_t {
+ unsigned short val; /* 8.8 */
+ unsigned short expand; /* 0 = compress, !0 = expand. */
+};
+
+struct tas_drce_t {
+ unsigned short enable;
+ struct tas_ratio_t above;
+ struct tas_ratio_t below;
+ short threshold; /* dB, 8.8 signed */
+ unsigned short energy; /* seconds, 4.12 unsigned */
+ unsigned short attack; /* seconds, 4.12 unsigned */
+ unsigned short decay; /* seconds, 4.12 unsigned */
+};
+
+struct tas_drce_ctrl_t {
+ uint flags;
+
+ struct tas_drce_t data;
+};
+
+struct tas_gain_t
+{
+ unsigned int *master;
+ unsigned int *treble;
+ unsigned int *bass;
+ unsigned int *mixer;
+};
+
+typedef char tas_shadow_t[0x45];
+
+struct tas_data_t
+{
+ struct i2c_client *client;
+ tas_shadow_t *shadow;
+ uint mixer[SOUND_MIXER_NRDEVICES];
+};
+
+typedef int (*tas_hook_init_t)(struct i2c_client *);
+typedef int (*tas_hook_post_init_t)(struct tas_data_t *);
+typedef void (*tas_hook_uninit_t)(struct tas_data_t *);
+
+typedef int (*tas_hook_get_mixer_level_t)(struct tas_data_t *,int,uint *);
+typedef int (*tas_hook_set_mixer_level_t)(struct tas_data_t *,int,uint);
+
+typedef int (*tas_hook_enter_sleep_t)(struct tas_data_t *);
+typedef int (*tas_hook_leave_sleep_t)(struct tas_data_t *);
+
+typedef int (*tas_hook_supported_mixers_t)(struct tas_data_t *);
+typedef int (*tas_hook_mixer_is_stereo_t)(struct tas_data_t *,int);
+typedef int (*tas_hook_stereo_mixers_t)(struct tas_data_t *);
+
+typedef int (*tas_hook_output_device_change_t)(struct tas_data_t *,int,int,int);
+typedef int (*tas_hook_device_ioctl_t)(struct tas_data_t *,u_int,u_long);
+
+struct tas_driver_hooks_t {
+ /*
+ * All hardware initialisation must be performed in
+ * post_init(), as tas_dmasound_init() does a hardware reset.
+ *
+ * init() is called before tas_dmasound_init() so that
+ * ouput_device_change() is always called after i2c driver
+ * initialisation. The implication is that
+ * output_device_change() must cope with the fact that it
+ * may be called before post_init().
+ */
+
+ tas_hook_init_t init;
+ tas_hook_post_init_t post_init;
+ tas_hook_uninit_t uninit;
+
+ tas_hook_get_mixer_level_t get_mixer_level;
+ tas_hook_set_mixer_level_t set_mixer_level;
+
+ tas_hook_enter_sleep_t enter_sleep;
+ tas_hook_leave_sleep_t leave_sleep;
+
+ tas_hook_supported_mixers_t supported_mixers;
+ tas_hook_mixer_is_stereo_t mixer_is_stereo;
+ tas_hook_stereo_mixers_t stereo_mixers;
+
+ tas_hook_output_device_change_t output_device_change;
+ tas_hook_device_ioctl_t device_ioctl;
+};
+
+enum tas_write_mode_t {
+ WRITE_HW = 0x01,
+ WRITE_SHADOW = 0x02,
+ WRITE_NORMAL = 0x03,
+ FORCE_WRITE = 0x04
+};
+
+static inline uint
+tas_mono_to_stereo(uint mono)
+{
+ mono &=0xff;
+ return mono | (mono<<8);
+}
+
+/*
+ * Todo: make these functions a bit more efficient !
+ */
+static inline int
+tas_write_register( struct tas_data_t *self,
+ uint reg_num,
+ uint reg_width,
+ char *data,
+ uint write_mode)
+{
+ int rc;
+
+ if (reg_width==0 || data==NULL || self==NULL)
+ return -EINVAL;
+ if (!(write_mode & FORCE_WRITE) &&
+ !memcmp(data,self->shadow[reg_num],reg_width))
+ return 0;
+
+ if (write_mode & WRITE_SHADOW)
+ memcpy(self->shadow[reg_num],data,reg_width);
+ if (write_mode & WRITE_HW) {
+ rc=i2c_smbus_write_block_data(self->client,
+ reg_num,
+ reg_width,
+ data);
+ if (rc < 0) {
+ printk("tas: I2C block write failed \n");
+ return rc;
+ }
+ }
+ return 0;
+}
+
+static inline int
+tas_sync_register( struct tas_data_t *self,
+ uint reg_num,
+ uint reg_width)
+{
+ int rc;
+
+ if (reg_width==0 || self==NULL)
+ return -EINVAL;
+ rc=i2c_smbus_write_block_data(self->client,
+ reg_num,
+ reg_width,
+ self->shadow[reg_num]);
+ if (rc < 0) {
+ printk("tas: I2C block write failed \n");
+ return rc;
+ }
+ return 0;
+}
+
+static inline int
+tas_write_byte_register( struct tas_data_t *self,
+ uint reg_num,
+ char data,
+ uint write_mode)
+{
+ if (self==NULL)
+ return -1;
+ if (!(write_mode & FORCE_WRITE) && data != self->shadow[reg_num][0])
+ return 0;
+ if (write_mode & WRITE_SHADOW)
+ self->shadow[reg_num][0]=data;
+ if (write_mode & WRITE_HW) {
+ if (i2c_smbus_write_byte_data(self->client, reg_num, data) < 0) {
+ printk("tas: I2C byte write failed \n");
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static inline int
+tas_sync_byte_register( struct tas_data_t *self,
+ uint reg_num,
+ uint reg_width)
+{
+ if (reg_width==0 || self==NULL)
+ return -1;
+ if (i2c_smbus_write_byte_data(
+ self->client, reg_num, self->shadow[reg_num][0]) < 0) {
+ printk("tas: I2C byte write failed \n");
+ return -1;
+ }
+ return 0;
+}
+
+static inline int
+tas_read_register( struct tas_data_t *self,
+ uint reg_num,
+ uint reg_width,
+ char *data)
+{
+ if (reg_width==0 || data==NULL || self==NULL)
+ return -1;
+ memcpy(data,self->shadow[reg_num],reg_width);
+ return 0;
+}
+
+extern int tas_register_driver(struct tas_driver_hooks_t *hooks);
+
+extern int tas_get_mixer_level(int mixer,uint *level);
+extern int tas_set_mixer_level(int mixer,uint level);
+extern int tas_enter_sleep(void);
+extern int tas_leave_sleep(void);
+extern int tas_supported_mixers(void);
+extern int tas_mixer_is_stereo(int mixer);
+extern int tas_stereo_mixers(void);
+extern int tas_output_device_change(int,int,int);
+extern int tas_device_ioctl(u_int, u_long);
+
+extern void tas_cleanup(void);
+extern int tas_init(int driver_id,const char *driver_name);
+extern int tas_post_init(void);
+
+#endif /* _TAS_COMMON_H_ */
+/*
+ * Local Variables:
+ * tab-width: 8
+ * indent-tabs-mode: t
+ * c-basic-offset: 8
+ * End:
+ */