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linux/sound/oss/dmasound/tas3004.c
Linus Torvalds 1da177e4c3 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!
2005-04-16 15:20:36 -07:00

1141 lines
28 KiB
C
Raw Blame History

/*
* Driver for the i2c/i2s based TA3004 sound chip used
* on some Apple hardware. Also known as "snapper".
*
* Tobias Sargeant <tobias.sargeant@bigpond.com>
* Based upon tas3001c.c by Christopher C. Chimelis <chris@debian.org>:
*
* Input support by Renzo Davoli <renzo@cs.unibo.it>
*
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/proc_fs.h>
#include <linux/ioport.h>
#include <linux/sysctl.h>
#include <linux/types.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/soundcard.h>
#include <linux/interrupt.h>
#include <linux/workqueue.h>
#include <asm/uaccess.h>
#include <asm/errno.h>
#include <asm/io.h>
#include <asm/prom.h>
#include "dmasound.h"
#include "tas_common.h"
#include "tas3004.h"
#include "tas_ioctl.h"
/* #define DEBUG_DRCE */
#define TAS3004_BIQUAD_FILTER_COUNT 7
#define TAS3004_BIQUAD_CHANNEL_COUNT 2
#define VOL_DEFAULT (100 * 4 / 5)
#define INPUT_DEFAULT (100 * 4 / 5)
#define BASS_DEFAULT (100 / 2)
#define TREBLE_DEFAULT (100 / 2)
struct tas3004_data_t {
struct tas_data_t super;
int device_id;
int output_id;
int speaker_id;
struct tas_drce_t drce_state;
};
#define MAKE_TIME(sec,usec) (((sec)<<12) + (50000+(usec/10)*(1<<12))/100000)
#define MAKE_RATIO(i,f) (((i)<<8) + ((500+(f)*(1<<8))/1000))
static const union tas_biquad_t tas3004_eq_unity = {
.buf = { 0x100000, 0x000000, 0x000000, 0x000000, 0x000000 },
};
static const struct tas_drce_t tas3004_drce_min = {
.enable = 1,
.above = { .val = MAKE_RATIO(16,0), .expand = 0 },
.below = { .val = MAKE_RATIO(2,0), .expand = 0 },
.threshold = -0x59a0,
.energy = MAKE_TIME(0, 1700),
.attack = MAKE_TIME(0, 1700),
.decay = MAKE_TIME(0, 1700),
};
static const struct tas_drce_t tas3004_drce_max = {
.enable = 1,
.above = { .val = MAKE_RATIO(1,500), .expand = 1 },
.below = { .val = MAKE_RATIO(2,0), .expand = 1 },
.threshold = -0x0,
.energy = MAKE_TIME(2,400000),
.attack = MAKE_TIME(2,400000),
.decay = MAKE_TIME(2,400000),
};
static const unsigned short time_constants[]={
MAKE_TIME(0, 1700),
MAKE_TIME(0, 3500),
MAKE_TIME(0, 6700),
MAKE_TIME(0, 13000),
MAKE_TIME(0, 26000),
MAKE_TIME(0, 53000),
MAKE_TIME(0,106000),
MAKE_TIME(0,212000),
MAKE_TIME(0,425000),
MAKE_TIME(0,850000),
MAKE_TIME(1,700000),
MAKE_TIME(2,400000),
};
static const unsigned short above_threshold_compression_ratio[]={
MAKE_RATIO( 1, 70),
MAKE_RATIO( 1,140),
MAKE_RATIO( 1,230),
MAKE_RATIO( 1,330),
MAKE_RATIO( 1,450),
MAKE_RATIO( 1,600),
MAKE_RATIO( 1,780),
MAKE_RATIO( 2, 0),
MAKE_RATIO( 2,290),
MAKE_RATIO( 2,670),
MAKE_RATIO( 3,200),
MAKE_RATIO( 4, 0),
MAKE_RATIO( 5,330),
MAKE_RATIO( 8, 0),
MAKE_RATIO(16, 0),
};
static const unsigned short above_threshold_expansion_ratio[]={
MAKE_RATIO(1, 60),
MAKE_RATIO(1,130),
MAKE_RATIO(1,190),
MAKE_RATIO(1,250),
MAKE_RATIO(1,310),
MAKE_RATIO(1,380),
MAKE_RATIO(1,440),
MAKE_RATIO(1,500)
};
static const unsigned short below_threshold_compression_ratio[]={
MAKE_RATIO(1, 70),
MAKE_RATIO(1,140),
MAKE_RATIO(1,230),
MAKE_RATIO(1,330),
MAKE_RATIO(1,450),
MAKE_RATIO(1,600),
MAKE_RATIO(1,780),
MAKE_RATIO(2, 0)
};
static const unsigned short below_threshold_expansion_ratio[]={
MAKE_RATIO(1, 60),
MAKE_RATIO(1,130),
MAKE_RATIO(1,190),
MAKE_RATIO(1,250),
MAKE_RATIO(1,310),
MAKE_RATIO(1,380),
MAKE_RATIO(1,440),
MAKE_RATIO(1,500),
MAKE_RATIO(1,560),
MAKE_RATIO(1,630),
MAKE_RATIO(1,690),
MAKE_RATIO(1,750),
MAKE_RATIO(1,810),
MAKE_RATIO(1,880),
MAKE_RATIO(1,940),
MAKE_RATIO(2, 0)
};
static inline int
search( unsigned short val,
const unsigned short *arr,
const int arrsize) {
/*
* This could be a binary search, but for small tables,
* a linear search is likely to be faster
*/
int i;
for (i=0; i < arrsize; i++)
if (arr[i] >= val)
goto _1;
return arrsize-1;
_1:
if (i == 0)
return 0;
return (arr[i]-val < val-arr[i-1]) ? i : i-1;
}
#define SEARCH(a, b) search(a, b, ARRAY_SIZE(b))
static inline int
time_index(unsigned short time)
{
return SEARCH(time, time_constants);
}
static inline int
above_threshold_compression_index(unsigned short ratio)
{
return SEARCH(ratio, above_threshold_compression_ratio);
}
static inline int
above_threshold_expansion_index(unsigned short ratio)
{
return SEARCH(ratio, above_threshold_expansion_ratio);
}
static inline int
below_threshold_compression_index(unsigned short ratio)
{
return SEARCH(ratio, below_threshold_compression_ratio);
}
static inline int
below_threshold_expansion_index(unsigned short ratio)
{
return SEARCH(ratio, below_threshold_expansion_ratio);
}
static inline unsigned char db_to_regval(short db) {
int r=0;
r=(db+0x59a0) / 0x60;
if (r < 0x91) return 0x91;
if (r > 0xef) return 0xef;
return r;
}
static inline short quantize_db(short db)
{
return db_to_regval(db) * 0x60 - 0x59a0;
}
static inline int
register_width(enum tas3004_reg_t r)
{
switch(r) {
case TAS3004_REG_MCR:
case TAS3004_REG_TREBLE:
case TAS3004_REG_BASS:
case TAS3004_REG_ANALOG_CTRL:
case TAS3004_REG_TEST1:
case TAS3004_REG_TEST2:
case TAS3004_REG_MCR2:
return 1;
case TAS3004_REG_LEFT_LOUD_BIQUAD_GAIN:
case TAS3004_REG_RIGHT_LOUD_BIQUAD_GAIN:
return 3;
case TAS3004_REG_DRC:
case TAS3004_REG_VOLUME:
return 6;
case TAS3004_REG_LEFT_MIXER:
case TAS3004_REG_RIGHT_MIXER:
return 9;
case TAS3004_REG_TEST:
return 10;
case TAS3004_REG_LEFT_BIQUAD0:
case TAS3004_REG_LEFT_BIQUAD1:
case TAS3004_REG_LEFT_BIQUAD2:
case TAS3004_REG_LEFT_BIQUAD3:
case TAS3004_REG_LEFT_BIQUAD4:
case TAS3004_REG_LEFT_BIQUAD5:
case TAS3004_REG_LEFT_BIQUAD6:
case TAS3004_REG_RIGHT_BIQUAD0:
case TAS3004_REG_RIGHT_BIQUAD1:
case TAS3004_REG_RIGHT_BIQUAD2:
case TAS3004_REG_RIGHT_BIQUAD3:
case TAS3004_REG_RIGHT_BIQUAD4:
case TAS3004_REG_RIGHT_BIQUAD5:
case TAS3004_REG_RIGHT_BIQUAD6:
case TAS3004_REG_LEFT_LOUD_BIQUAD:
case TAS3004_REG_RIGHT_LOUD_BIQUAD:
return 15;
default:
return 0;
}
}
static int
tas3004_write_register( struct tas3004_data_t *self,
enum tas3004_reg_t reg_num,
char *data,
uint write_mode)
{
if (reg_num==TAS3004_REG_MCR ||
reg_num==TAS3004_REG_BASS ||
reg_num==TAS3004_REG_TREBLE ||
reg_num==TAS3004_REG_ANALOG_CTRL) {
return tas_write_byte_register(&self->super,
(uint)reg_num,
*data,
write_mode);
} else {
return tas_write_register(&self->super,
(uint)reg_num,
register_width(reg_num),
data,
write_mode);
}
}
static int
tas3004_sync_register( struct tas3004_data_t *self,
enum tas3004_reg_t reg_num)
{
if (reg_num==TAS3004_REG_MCR ||
reg_num==TAS3004_REG_BASS ||
reg_num==TAS3004_REG_TREBLE ||
reg_num==TAS3004_REG_ANALOG_CTRL) {
return tas_sync_byte_register(&self->super,
(uint)reg_num,
register_width(reg_num));
} else {
return tas_sync_register(&self->super,
(uint)reg_num,
register_width(reg_num));
}
}
static int
tas3004_read_register( struct tas3004_data_t *self,
enum tas3004_reg_t reg_num,
char *data,
uint write_mode)
{
return tas_read_register(&self->super,
(uint)reg_num,
register_width(reg_num),
data);
}
static inline int
tas3004_fast_load(struct tas3004_data_t *self, int fast)
{
if (fast)
self->super.shadow[TAS3004_REG_MCR][0] |= 0x80;
else
self->super.shadow[TAS3004_REG_MCR][0] &= 0x7f;
return tas3004_sync_register(self,TAS3004_REG_MCR);
}
static uint
tas3004_supported_mixers(struct tas3004_data_t *self)
{
return SOUND_MASK_VOLUME |
SOUND_MASK_PCM |
SOUND_MASK_ALTPCM |
SOUND_MASK_IMIX |
SOUND_MASK_TREBLE |
SOUND_MASK_BASS |
SOUND_MASK_MIC |
SOUND_MASK_LINE;
}
static int
tas3004_mixer_is_stereo(struct tas3004_data_t *self, int mixer)
{
switch(mixer) {
case SOUND_MIXER_VOLUME:
case SOUND_MIXER_PCM:
case SOUND_MIXER_ALTPCM:
case SOUND_MIXER_IMIX:
return 1;
default:
return 0;
}
}
static uint
tas3004_stereo_mixers(struct tas3004_data_t *self)
{
uint r = tas3004_supported_mixers(self);
uint i;
for (i=1; i<SOUND_MIXER_NRDEVICES; i++)
if (r&(1<<i) && !tas3004_mixer_is_stereo(self,i))
r &= ~(1<<i);
return r;
}
static int
tas3004_get_mixer_level(struct tas3004_data_t *self, int mixer, uint *level)
{
if (!self)
return -1;
*level = self->super.mixer[mixer];
return 0;
}
static int
tas3004_set_mixer_level(struct tas3004_data_t *self, int mixer, uint level)
{
int rc;
tas_shadow_t *shadow;
uint temp;
uint offset=0;
if (!self)
return -1;
shadow = self->super.shadow;
if (!tas3004_mixer_is_stereo(self,mixer))
level = tas_mono_to_stereo(level);
switch(mixer) {
case SOUND_MIXER_VOLUME:
temp = tas3004_gain.master[level&0xff];
SET_4_20(shadow[TAS3004_REG_VOLUME], 0, temp);
temp = tas3004_gain.master[(level>>8)&0xff];
SET_4_20(shadow[TAS3004_REG_VOLUME], 3, temp);
rc = tas3004_sync_register(self,TAS3004_REG_VOLUME);
break;
case SOUND_MIXER_IMIX:
offset += 3;
case SOUND_MIXER_ALTPCM:
offset += 3;
case SOUND_MIXER_PCM:
/*
* Don't load these in fast mode. The documentation
* says it can be done in either mode, but testing it
* shows that fast mode produces ugly clicking.
*/
/* tas3004_fast_load(self,1); */
temp = tas3004_gain.mixer[level&0xff];
SET_4_20(shadow[TAS3004_REG_LEFT_MIXER], offset, temp);
temp = tas3004_gain.mixer[(level>>8)&0xff];
SET_4_20(shadow[TAS3004_REG_RIGHT_MIXER], offset, temp);
rc = tas3004_sync_register(self,TAS3004_REG_LEFT_MIXER);
if (rc == 0)
rc=tas3004_sync_register(self,TAS3004_REG_RIGHT_MIXER);
/* tas3004_fast_load(self,0); */
break;
case SOUND_MIXER_TREBLE:
temp = tas3004_gain.treble[level&0xff];
shadow[TAS3004_REG_TREBLE][0]=temp&0xff;
rc = tas3004_sync_register(self,TAS3004_REG_TREBLE);
break;
case SOUND_MIXER_BASS:
temp = tas3004_gain.bass[level&0xff];
shadow[TAS3004_REG_BASS][0]=temp&0xff;
rc = tas3004_sync_register(self,TAS3004_REG_BASS);
break;
case SOUND_MIXER_MIC:
if ((level&0xff)>0) {
software_input_volume = SW_INPUT_VOLUME_SCALE * (level&0xff);
if (self->super.mixer[mixer] == 0) {
self->super.mixer[SOUND_MIXER_LINE] = 0;
shadow[TAS3004_REG_ANALOG_CTRL][0]=0xc2;
rc = tas3004_sync_register(self,TAS3004_REG_ANALOG_CTRL);
} else rc=0;
} else {
self->super.mixer[SOUND_MIXER_LINE] = SW_INPUT_VOLUME_DEFAULT;
software_input_volume = SW_INPUT_VOLUME_SCALE *
(self->super.mixer[SOUND_MIXER_LINE]&0xff);
shadow[TAS3004_REG_ANALOG_CTRL][0]=0x00;
rc = tas3004_sync_register(self,TAS3004_REG_ANALOG_CTRL);
}
break;
case SOUND_MIXER_LINE:
if (self->super.mixer[SOUND_MIXER_MIC] == 0) {
software_input_volume = SW_INPUT_VOLUME_SCALE * (level&0xff);
rc=0;
}
break;
default:
rc = -1;
break;
}
if (rc < 0)
return rc;
self->super.mixer[mixer] = level;
return 0;
}
static int
tas3004_leave_sleep(struct tas3004_data_t *self)
{
unsigned char mcr = (1<<6)+(2<<4)+(2<<2);
if (!self)
return -1;
/* Make sure something answers on the i2c bus */
if (tas3004_write_register(self, TAS3004_REG_MCR, &mcr,
WRITE_NORMAL | FORCE_WRITE) < 0)
return -1;
tas3004_fast_load(self, 1);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_BIQUAD0);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_BIQUAD1);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_BIQUAD2);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_BIQUAD3);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_BIQUAD4);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_BIQUAD5);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_BIQUAD6);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_BIQUAD0);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_BIQUAD1);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_BIQUAD2);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_BIQUAD3);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_BIQUAD4);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_BIQUAD5);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_BIQUAD6);
tas3004_fast_load(self, 0);
(void)tas3004_sync_register(self,TAS3004_REG_VOLUME);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_MIXER);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_MIXER);
(void)tas3004_sync_register(self,TAS3004_REG_TREBLE);
(void)tas3004_sync_register(self,TAS3004_REG_BASS);
(void)tas3004_sync_register(self,TAS3004_REG_ANALOG_CTRL);
return 0;
}
static int
tas3004_enter_sleep(struct tas3004_data_t *self)
{
if (!self)
return -1;
return 0;
}
static int
tas3004_sync_biquad( struct tas3004_data_t *self,
u_int channel,
u_int filter)
{
enum tas3004_reg_t reg;
if (channel >= TAS3004_BIQUAD_CHANNEL_COUNT ||
filter >= TAS3004_BIQUAD_FILTER_COUNT) return -EINVAL;
reg=( channel ? TAS3004_REG_RIGHT_BIQUAD0 : TAS3004_REG_LEFT_BIQUAD0 ) + filter;
return tas3004_sync_register(self,reg);
}
static int
tas3004_write_biquad_shadow( struct tas3004_data_t *self,
u_int channel,
u_int filter,
const union tas_biquad_t *biquad)
{
tas_shadow_t *shadow=self->super.shadow;
enum tas3004_reg_t reg;
if (channel >= TAS3004_BIQUAD_CHANNEL_COUNT ||
filter >= TAS3004_BIQUAD_FILTER_COUNT) return -EINVAL;
reg=( channel ? TAS3004_REG_RIGHT_BIQUAD0 : TAS3004_REG_LEFT_BIQUAD0 ) + filter;
SET_4_20(shadow[reg], 0,biquad->coeff.b0);
SET_4_20(shadow[reg], 3,biquad->coeff.b1);
SET_4_20(shadow[reg], 6,biquad->coeff.b2);
SET_4_20(shadow[reg], 9,biquad->coeff.a1);
SET_4_20(shadow[reg],12,biquad->coeff.a2);
return 0;
}
static int
tas3004_write_biquad( struct tas3004_data_t *self,
u_int channel,
u_int filter,
const union tas_biquad_t *biquad)
{
int rc;
rc=tas3004_write_biquad_shadow(self, channel, filter, biquad);
if (rc < 0) return rc;
return tas3004_sync_biquad(self, channel, filter);
}
static int
tas3004_write_biquad_list( struct tas3004_data_t *self,
u_int filter_count,
u_int flags,
struct tas_biquad_ctrl_t *biquads)
{
int i;
int rc;
if (flags & TAS_BIQUAD_FAST_LOAD) tas3004_fast_load(self,1);
for (i=0; i<filter_count; i++) {
rc=tas3004_write_biquad(self,
biquads[i].channel,
biquads[i].filter,
&biquads[i].data);
if (rc < 0) break;
}
if (flags & TAS_BIQUAD_FAST_LOAD) tas3004_fast_load(self,0);
return rc;
}
static int
tas3004_read_biquad( struct tas3004_data_t *self,
u_int channel,
u_int filter,
union tas_biquad_t *biquad)
{
tas_shadow_t *shadow=self->super.shadow;
enum tas3004_reg_t reg;
if (channel >= TAS3004_BIQUAD_CHANNEL_COUNT ||
filter >= TAS3004_BIQUAD_FILTER_COUNT) return -EINVAL;
reg=( channel ? TAS3004_REG_RIGHT_BIQUAD0 : TAS3004_REG_LEFT_BIQUAD0 ) + filter;
biquad->coeff.b0=GET_4_20(shadow[reg], 0);
biquad->coeff.b1=GET_4_20(shadow[reg], 3);
biquad->coeff.b2=GET_4_20(shadow[reg], 6);
biquad->coeff.a1=GET_4_20(shadow[reg], 9);
biquad->coeff.a2=GET_4_20(shadow[reg],12);
return 0;
}
static int
tas3004_eq_rw( struct tas3004_data_t *self,
u_int cmd,
u_long arg)
{
void __user *argp = (void __user *)arg;
int rc;
struct tas_biquad_ctrl_t biquad;
if (copy_from_user((void *)&biquad, argp, sizeof(struct tas_biquad_ctrl_t))) {
return -EFAULT;
}
if (cmd & SIOC_IN) {
rc=tas3004_write_biquad(self, biquad.channel, biquad.filter, &biquad.data);
if (rc != 0) return rc;
}
if (cmd & SIOC_OUT) {
rc=tas3004_read_biquad(self, biquad.channel, biquad.filter, &biquad.data);
if (rc != 0) return rc;
if (copy_to_user(argp, &biquad, sizeof(struct tas_biquad_ctrl_t))) {
return -EFAULT;
}
}
return 0;
}
static int
tas3004_eq_list_rw( struct tas3004_data_t *self,
u_int cmd,
u_long arg)
{
int rc = 0;
int filter_count;
int flags;
int i,j;
char sync_required[TAS3004_BIQUAD_CHANNEL_COUNT][TAS3004_BIQUAD_FILTER_COUNT];
struct tas_biquad_ctrl_t biquad;
struct tas_biquad_ctrl_list_t __user *argp = (void __user *)arg;
memset(sync_required,0,sizeof(sync_required));
if (copy_from_user(&filter_count, &argp->filter_count, sizeof(int)))
return -EFAULT;
if (copy_from_user(&flags, &argp->flags, sizeof(int)))
return -EFAULT;
if (cmd & SIOC_IN) {
}
for (i=0; i < filter_count; i++) {
if (copy_from_user(&biquad, &argp->biquads[i],
sizeof(struct tas_biquad_ctrl_t))) {
return -EFAULT;
}
if (cmd & SIOC_IN) {
sync_required[biquad.channel][biquad.filter]=1;
rc=tas3004_write_biquad_shadow(self, biquad.channel, biquad.filter, &biquad.data);
if (rc != 0) return rc;
}
if (cmd & SIOC_OUT) {
rc=tas3004_read_biquad(self, biquad.channel, biquad.filter, &biquad.data);
if (rc != 0) return rc;
if (copy_to_user(&argp->biquads[i], &biquad,
sizeof(struct tas_biquad_ctrl_t))) {
return -EFAULT;
}
}
}
if (cmd & SIOC_IN) {
/*
* This is OK for the tas3004. For the
* tas3001c, going into fast load mode causes
* the treble and bass to be reset to 0dB, and
* volume controls to be muted.
*/
if (flags & TAS_BIQUAD_FAST_LOAD) tas3004_fast_load(self,1);
for (i=0; i<TAS3004_BIQUAD_CHANNEL_COUNT; i++) {
for (j=0; j<TAS3004_BIQUAD_FILTER_COUNT; j++) {
if (sync_required[i][j]) {
rc=tas3004_sync_biquad(self, i, j);
if (rc < 0) goto out;
}
}
}
out:
if (flags & TAS_BIQUAD_FAST_LOAD)
tas3004_fast_load(self,0);
}
return rc;
}
static int
tas3004_update_drce( struct tas3004_data_t *self,
int flags,
struct tas_drce_t *drce)
{
tas_shadow_t *shadow;
int i;
shadow=self->super.shadow;
if (flags & TAS_DRCE_ABOVE_RATIO) {
self->drce_state.above.expand = drce->above.expand;
if (drce->above.val == (1<<8)) {
self->drce_state.above.val = 1<<8;
shadow[TAS3004_REG_DRC][0] = 0x02;
} else if (drce->above.expand) {
i=above_threshold_expansion_index(drce->above.val);
self->drce_state.above.val=above_threshold_expansion_ratio[i];
shadow[TAS3004_REG_DRC][0] = 0x0a + (i<<3);
} else {
i=above_threshold_compression_index(drce->above.val);
self->drce_state.above.val=above_threshold_compression_ratio[i];
shadow[TAS3004_REG_DRC][0] = 0x08 + (i<<3);
}
}
if (flags & TAS_DRCE_BELOW_RATIO) {
self->drce_state.below.expand = drce->below.expand;
if (drce->below.val == (1<<8)) {
self->drce_state.below.val = 1<<8;
shadow[TAS3004_REG_DRC][1] = 0x02;
} else if (drce->below.expand) {
i=below_threshold_expansion_index(drce->below.val);
self->drce_state.below.val=below_threshold_expansion_ratio[i];
shadow[TAS3004_REG_DRC][1] = 0x08 + (i<<3);
} else {
i=below_threshold_compression_index(drce->below.val);
self->drce_state.below.val=below_threshold_compression_ratio[i];
shadow[TAS3004_REG_DRC][1] = 0x0a + (i<<3);
}
}
if (flags & TAS_DRCE_THRESHOLD) {
self->drce_state.threshold=quantize_db(drce->threshold);
shadow[TAS3004_REG_DRC][2] = db_to_regval(self->drce_state.threshold);
}
if (flags & TAS_DRCE_ENERGY) {
i=time_index(drce->energy);
self->drce_state.energy=time_constants[i];
shadow[TAS3004_REG_DRC][3] = 0x40 + (i<<4);
}
if (flags & TAS_DRCE_ATTACK) {
i=time_index(drce->attack);
self->drce_state.attack=time_constants[i];
shadow[TAS3004_REG_DRC][4] = 0x40 + (i<<4);
}
if (flags & TAS_DRCE_DECAY) {
i=time_index(drce->decay);
self->drce_state.decay=time_constants[i];
shadow[TAS3004_REG_DRC][5] = 0x40 + (i<<4);
}
if (flags & TAS_DRCE_ENABLE) {
self->drce_state.enable = drce->enable;
}
if (!self->drce_state.enable) {
shadow[TAS3004_REG_DRC][0] |= 0x01;
}
#ifdef DEBUG_DRCE
printk("DRCE: set [ ENABLE:%x ABOVE:%x/%x BELOW:%x/%x THRESH:%x ENERGY:%x ATTACK:%x DECAY:%x\n",
self->drce_state.enable,
self->drce_state.above.expand,self->drce_state.above.val,
self->drce_state.below.expand,self->drce_state.below.val,
self->drce_state.threshold,
self->drce_state.energy,
self->drce_state.attack,
self->drce_state.decay);
printk("DRCE: reg [ %02x %02x %02x %02x %02x %02x ]\n",
(unsigned char)shadow[TAS3004_REG_DRC][0],
(unsigned char)shadow[TAS3004_REG_DRC][1],
(unsigned char)shadow[TAS3004_REG_DRC][2],
(unsigned char)shadow[TAS3004_REG_DRC][3],
(unsigned char)shadow[TAS3004_REG_DRC][4],
(unsigned char)shadow[TAS3004_REG_DRC][5]);
#endif
return tas3004_sync_register(self, TAS3004_REG_DRC);
}
static int
tas3004_drce_rw( struct tas3004_data_t *self,
u_int cmd,
u_long arg)
{
int rc;
struct tas_drce_ctrl_t drce_ctrl;
void __user *argp = (void __user *)arg;
if (copy_from_user(&drce_ctrl, argp, sizeof(struct tas_drce_ctrl_t)))
return -EFAULT;
#ifdef DEBUG_DRCE
printk("DRCE: input [ FLAGS:%x ENABLE:%x ABOVE:%x/%x BELOW:%x/%x THRESH:%x ENERGY:%x ATTACK:%x DECAY:%x\n",
drce_ctrl.flags,
drce_ctrl.data.enable,
drce_ctrl.data.above.expand,drce_ctrl.data.above.val,
drce_ctrl.data.below.expand,drce_ctrl.data.below.val,
drce_ctrl.data.threshold,
drce_ctrl.data.energy,
drce_ctrl.data.attack,
drce_ctrl.data.decay);
#endif
if (cmd & SIOC_IN) {
rc = tas3004_update_drce(self, drce_ctrl.flags, &drce_ctrl.data);
if (rc < 0) return rc;
}
if (cmd & SIOC_OUT) {
if (drce_ctrl.flags & TAS_DRCE_ENABLE)
drce_ctrl.data.enable = self->drce_state.enable;
if (drce_ctrl.flags & TAS_DRCE_ABOVE_RATIO)
drce_ctrl.data.above = self->drce_state.above;
if (drce_ctrl.flags & TAS_DRCE_BELOW_RATIO)
drce_ctrl.data.below = self->drce_state.below;
if (drce_ctrl.flags & TAS_DRCE_THRESHOLD)
drce_ctrl.data.threshold = self->drce_state.threshold;
if (drce_ctrl.flags & TAS_DRCE_ENERGY)
drce_ctrl.data.energy = self->drce_state.energy;
if (drce_ctrl.flags & TAS_DRCE_ATTACK)
drce_ctrl.data.attack = self->drce_state.attack;
if (drce_ctrl.flags & TAS_DRCE_DECAY)
drce_ctrl.data.decay = self->drce_state.decay;
if (copy_to_user(argp, &drce_ctrl,
sizeof(struct tas_drce_ctrl_t))) {
return -EFAULT;
}
}
return 0;
}
static void
tas3004_update_device_parameters(struct tas3004_data_t *self)
{
char data;
int i;
if (!self) return;
if (self->output_id == TAS_OUTPUT_HEADPHONES) {
/* turn on allPass when headphones are plugged in */
data = 0x02;
} else {
data = 0x00;
}
tas3004_write_register(self, TAS3004_REG_MCR2, &data, WRITE_NORMAL | FORCE_WRITE);
for (i=0; tas3004_eq_prefs[i]; i++) {
struct tas_eq_pref_t *eq = tas3004_eq_prefs[i];
if (eq->device_id == self->device_id &&
(eq->output_id == 0 || eq->output_id == self->output_id) &&
(eq->speaker_id == 0 || eq->speaker_id == self->speaker_id)) {
tas3004_update_drce(self, TAS_DRCE_ALL, eq->drce);
tas3004_write_biquad_list(self, eq->filter_count, TAS_BIQUAD_FAST_LOAD, eq->biquads);
break;
}
}
}
static void
tas3004_device_change_handler(void *self)
{
if (!self) return;
tas3004_update_device_parameters((struct tas3004_data_t *)self);
}
static struct work_struct device_change;
static int
tas3004_output_device_change( struct tas3004_data_t *self,
int device_id,
int output_id,
int speaker_id)
{
self->device_id=device_id;
self->output_id=output_id;
self->speaker_id=speaker_id;
schedule_work(&device_change);
return 0;
}
static int
tas3004_device_ioctl( struct tas3004_data_t *self,
u_int cmd,
u_long arg)
{
uint __user *argp = (void __user *)arg;
switch (cmd) {
case TAS_READ_EQ:
case TAS_WRITE_EQ:
return tas3004_eq_rw(self, cmd, arg);
case TAS_READ_EQ_LIST:
case TAS_WRITE_EQ_LIST:
return tas3004_eq_list_rw(self, cmd, arg);
case TAS_READ_EQ_FILTER_COUNT:
put_user(TAS3004_BIQUAD_FILTER_COUNT, argp);
return 0;
case TAS_READ_EQ_CHANNEL_COUNT:
put_user(TAS3004_BIQUAD_CHANNEL_COUNT, argp);
return 0;
case TAS_READ_DRCE:
case TAS_WRITE_DRCE:
return tas3004_drce_rw(self, cmd, arg);
case TAS_READ_DRCE_CAPS:
put_user(TAS_DRCE_ENABLE |
TAS_DRCE_ABOVE_RATIO |
TAS_DRCE_BELOW_RATIO |
TAS_DRCE_THRESHOLD |
TAS_DRCE_ENERGY |
TAS_DRCE_ATTACK |
TAS_DRCE_DECAY,
argp);
return 0;
case TAS_READ_DRCE_MIN:
case TAS_READ_DRCE_MAX: {
struct tas_drce_ctrl_t drce_ctrl;
const struct tas_drce_t *drce_copy;
if (copy_from_user(&drce_ctrl, argp,
sizeof(struct tas_drce_ctrl_t))) {
return -EFAULT;
}
if (cmd == TAS_READ_DRCE_MIN) {
drce_copy=&tas3004_drce_min;
} else {
drce_copy=&tas3004_drce_max;
}
if (drce_ctrl.flags & TAS_DRCE_ABOVE_RATIO) {
drce_ctrl.data.above=drce_copy->above;
}
if (drce_ctrl.flags & TAS_DRCE_BELOW_RATIO) {
drce_ctrl.data.below=drce_copy->below;
}
if (drce_ctrl.flags & TAS_DRCE_THRESHOLD) {
drce_ctrl.data.threshold=drce_copy->threshold;
}
if (drce_ctrl.flags & TAS_DRCE_ENERGY) {
drce_ctrl.data.energy=drce_copy->energy;
}
if (drce_ctrl.flags & TAS_DRCE_ATTACK) {
drce_ctrl.data.attack=drce_copy->attack;
}
if (drce_ctrl.flags & TAS_DRCE_DECAY) {
drce_ctrl.data.decay=drce_copy->decay;
}
if (copy_to_user(argp, &drce_ctrl,
sizeof(struct tas_drce_ctrl_t))) {
return -EFAULT;
}
}
}
return -EINVAL;
}
static int
tas3004_init_mixer(struct tas3004_data_t *self)
{
unsigned char mcr = (1<<6)+(2<<4)+(2<<2);
/* Make sure something answers on the i2c bus */
if (tas3004_write_register(self, TAS3004_REG_MCR, &mcr,
WRITE_NORMAL | FORCE_WRITE) < 0)
return -1;
tas3004_fast_load(self, 1);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_BIQUAD0);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_BIQUAD1);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_BIQUAD2);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_BIQUAD3);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_BIQUAD4);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_BIQUAD5);
(void)tas3004_sync_register(self,TAS3004_REG_RIGHT_BIQUAD6);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_BIQUAD0);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_BIQUAD1);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_BIQUAD2);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_BIQUAD3);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_BIQUAD4);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_BIQUAD5);
(void)tas3004_sync_register(self,TAS3004_REG_LEFT_BIQUAD6);
tas3004_sync_register(self, TAS3004_REG_DRC);
tas3004_sync_register(self, TAS3004_REG_MCR2);
tas3004_fast_load(self, 0);
tas3004_set_mixer_level(self, SOUND_MIXER_VOLUME, VOL_DEFAULT<<8 | VOL_DEFAULT);
tas3004_set_mixer_level(self, SOUND_MIXER_PCM, INPUT_DEFAULT<<8 | INPUT_DEFAULT);
tas3004_set_mixer_level(self, SOUND_MIXER_ALTPCM, 0);
tas3004_set_mixer_level(self, SOUND_MIXER_IMIX, 0);
tas3004_set_mixer_level(self, SOUND_MIXER_BASS, BASS_DEFAULT);
tas3004_set_mixer_level(self, SOUND_MIXER_TREBLE, TREBLE_DEFAULT);
tas3004_set_mixer_level(self, SOUND_MIXER_LINE,SW_INPUT_VOLUME_DEFAULT);
return 0;
}
static int
tas3004_uninit_mixer(struct tas3004_data_t *self)
{
tas3004_set_mixer_level(self, SOUND_MIXER_VOLUME, 0);
tas3004_set_mixer_level(self, SOUND_MIXER_PCM, 0);
tas3004_set_mixer_level(self, SOUND_MIXER_ALTPCM, 0);
tas3004_set_mixer_level(self, SOUND_MIXER_IMIX, 0);
tas3004_set_mixer_level(self, SOUND_MIXER_BASS, 0);
tas3004_set_mixer_level(self, SOUND_MIXER_TREBLE, 0);
tas3004_set_mixer_level(self, SOUND_MIXER_LINE, 0);
return 0;
}
static int
tas3004_init(struct i2c_client *client)
{
struct tas3004_data_t *self;
size_t sz = sizeof(*self) + (TAS3004_REG_MAX*sizeof(tas_shadow_t));
char drce_init[] = { 0x69, 0x22, 0x9f, 0xb0, 0x60, 0xa0 };
char mcr2 = 0;
int i, j;
self = kmalloc(sz, GFP_KERNEL);
if (!self)
return -ENOMEM;
memset(self, 0, sz);
self->super.client = client;
self->super.shadow = (tas_shadow_t *)(self+1);
self->output_id = TAS_OUTPUT_HEADPHONES;
dev_set_drvdata(&client->dev, self);
for (i = 0; i < TAS3004_BIQUAD_CHANNEL_COUNT; i++)
for (j = 0; j<TAS3004_BIQUAD_FILTER_COUNT; j++)
tas3004_write_biquad_shadow(self, i, j,
&tas3004_eq_unity);
tas3004_write_register(self, TAS3004_REG_MCR2, &mcr2, WRITE_SHADOW);
tas3004_write_register(self, TAS3004_REG_DRC, drce_init, WRITE_SHADOW);
INIT_WORK(&device_change, tas3004_device_change_handler, self);
return 0;
}
static void
tas3004_uninit(struct tas3004_data_t *self)
{
tas3004_uninit_mixer(self);
kfree(self);
}
struct tas_driver_hooks_t tas3004_hooks = {
.init = (tas_hook_init_t)tas3004_init,
.post_init = (tas_hook_post_init_t)tas3004_init_mixer,
.uninit = (tas_hook_uninit_t)tas3004_uninit,
.get_mixer_level = (tas_hook_get_mixer_level_t)tas3004_get_mixer_level,
.set_mixer_level = (tas_hook_set_mixer_level_t)tas3004_set_mixer_level,
.enter_sleep = (tas_hook_enter_sleep_t)tas3004_enter_sleep,
.leave_sleep = (tas_hook_leave_sleep_t)tas3004_leave_sleep,
.supported_mixers = (tas_hook_supported_mixers_t)tas3004_supported_mixers,
.mixer_is_stereo = (tas_hook_mixer_is_stereo_t)tas3004_mixer_is_stereo,
.stereo_mixers = (tas_hook_stereo_mixers_t)tas3004_stereo_mixers,
.output_device_change = (tas_hook_output_device_change_t)tas3004_output_device_change,
.device_ioctl = (tas_hook_device_ioctl_t)tas3004_device_ioctl
};
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