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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2006-07-10 04:44:39 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-07-10 13:24:19 -0700
commit6a4f57874538fc05b99bd3bf7106f3df9b23a4ab (patch)
tree9731131b78823ba2f28a57c6d4f860e8c42e237f /sound/aoa
parent14b42963f64b98ab61fa9723c03d71aa5ef4f862 (diff)
downloadlinux-6a4f57874538fc05b99bd3bf7106f3df9b23a4ab.tar.gz
[PATCH] aoa: tas: fix initialisation/reset
This patch fixes the initialisation and reset of the tas codec. The tas will often reset if the i2s clocks go away so it needs to be completely re-initialised when clocks come back. Also, this patch adds some code for DRC that will be exploited later to add a DRC control again, fixing a regression over snd-powermac. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'sound/aoa')
-rw-r--r--sound/aoa/codecs/snd-aoa-codec-tas.c126
-rw-r--r--sound/aoa/codecs/snd-aoa-codec-tas.h8
2 files changed, 110 insertions, 24 deletions
diff --git a/sound/aoa/codecs/snd-aoa-codec-tas.c b/sound/aoa/codecs/snd-aoa-codec-tas.c
index 27c1e2eea22..23643b342cb 100644
--- a/sound/aoa/codecs/snd-aoa-codec-tas.c
+++ b/sound/aoa/codecs/snd-aoa-codec-tas.c
@@ -75,19 +75,24 @@ MODULE_DESCRIPTION("tas codec driver for snd-aoa");
#include "../aoa.h"
#include "../soundbus/soundbus.h"
-
#define PFX "snd-aoa-codec-tas: "
+
struct tas {
struct aoa_codec codec;
struct i2c_client i2c;
- u32 muted_l:1, muted_r:1,
- controls_created:1;
+ u32 mute_l:1, mute_r:1 ,
+ controls_created:1 ,
+ drc_enabled:1,
+ hw_enabled:1;
u8 cached_volume_l, cached_volume_r;
u8 mixer_l[3], mixer_r[3];
u8 acr;
+ int drc_range;
};
+static int tas_reset_init(struct tas *tas);
+
static struct tas *codec_to_tas(struct aoa_codec *codec)
{
return container_of(codec, struct tas, codec);
@@ -101,6 +106,28 @@ static inline int tas_write_reg(struct tas *tas, u8 reg, u8 len, u8 *data)
return i2c_smbus_write_i2c_block_data(&tas->i2c, reg, len, data);
}
+static void tas3004_set_drc(struct tas *tas)
+{
+ unsigned char val[6];
+
+ if (tas->drc_enabled)
+ val[0] = 0x50; /* 3:1 above threshold */
+ else
+ val[0] = 0x51; /* disabled */
+ val[1] = 0x02; /* 1:1 below threshold */
+ if (tas->drc_range > 0xef)
+ val[2] = 0xef;
+ else if (tas->drc_range < 0)
+ val[2] = 0x00;
+ else
+ val[2] = tas->drc_range;
+ val[3] = 0xb0;
+ val[4] = 0x60;
+ val[5] = 0xa0;
+
+ tas_write_reg(tas, TAS_REG_DRC, 6, val);
+}
+
static void tas_set_volume(struct tas *tas)
{
u8 block[6];
@@ -113,8 +140,8 @@ static void tas_set_volume(struct tas *tas)
if (left > 177) left = 177;
if (right > 177) right = 177;
- if (tas->muted_l) left = 0;
- if (tas->muted_r) right = 0;
+ if (tas->mute_l) left = 0;
+ if (tas->mute_r) right = 0;
/* analysing the volume and mixer tables shows
* that they are similar enough when we shift
@@ -202,7 +229,8 @@ static int tas_snd_vol_put(struct snd_kcontrol *kcontrol,
tas->cached_volume_l = ucontrol->value.integer.value[0];
tas->cached_volume_r = ucontrol->value.integer.value[1];
- tas_set_volume(tas);
+ if (tas->hw_enabled)
+ tas_set_volume(tas);
return 1;
}
@@ -230,8 +258,8 @@ static int tas_snd_mute_get(struct snd_kcontrol *kcontrol,
{
struct tas *tas = snd_kcontrol_chip(kcontrol);
- ucontrol->value.integer.value[0] = !tas->muted_l;
- ucontrol->value.integer.value[1] = !tas->muted_r;
+ ucontrol->value.integer.value[0] = !tas->mute_l;
+ ucontrol->value.integer.value[1] = !tas->mute_r;
return 0;
}
@@ -240,13 +268,14 @@ static int tas_snd_mute_put(struct snd_kcontrol *kcontrol,
{
struct tas *tas = snd_kcontrol_chip(kcontrol);
- if (tas->muted_l == !ucontrol->value.integer.value[0]
- && tas->muted_r == !ucontrol->value.integer.value[1])
+ if (tas->mute_l == !ucontrol->value.integer.value[0]
+ && tas->mute_r == !ucontrol->value.integer.value[1])
return 0;
- tas->muted_l = !ucontrol->value.integer.value[0];
- tas->muted_r = !ucontrol->value.integer.value[1];
- tas_set_volume(tas);
+ tas->mute_l = !ucontrol->value.integer.value[0];
+ tas->mute_r = !ucontrol->value.integer.value[1];
+ if (tas->hw_enabled)
+ tas_set_volume(tas);
return 1;
}
@@ -294,7 +323,8 @@ static int tas_snd_mixer_put(struct snd_kcontrol *kcontrol,
tas->mixer_l[idx] = ucontrol->value.integer.value[0];
tas->mixer_r[idx] = ucontrol->value.integer.value[1];
- tas_set_mixer(tas);
+ if (tas->hw_enabled)
+ tas_set_mixer(tas);
return 1;
}
@@ -346,7 +376,8 @@ static int tas_snd_capture_source_put(struct snd_kcontrol *kcontrol,
tas->acr |= TAS_ACR_INPUT_B;
if (oldacr == tas->acr)
return 0;
- tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr);
+ if (tas->hw_enabled)
+ tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr);
return 1;
}
@@ -399,26 +430,66 @@ static int tas_usable(struct codec_info_item *cii,
static int tas_reset_init(struct tas *tas)
{
u8 tmp;
+
+ tas->codec.gpio->methods->all_amps_off(tas->codec.gpio);
+ msleep(5);
tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 0);
- msleep(1);
+ msleep(5);
tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 1);
- msleep(1);
+ msleep(20);
tas->codec.gpio->methods->set_hw_reset(tas->codec.gpio, 0);
- msleep(1);
-
- tas->acr &= ~TAS_ACR_ANALOG_PDOWN;
- tas->acr |= TAS_ACR_B_MONAUREAL | TAS_ACR_B_MON_SEL_RIGHT;
- if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr))
- return -ENODEV;
+ msleep(10);
+ tas->codec.gpio->methods->all_amps_restore(tas->codec.gpio);
tmp = TAS_MCS_SCLK64 | TAS_MCS_SPORT_MODE_I2S | TAS_MCS_SPORT_WL_24BIT;
if (tas_write_reg(tas, TAS_REG_MCS, 1, &tmp))
return -ENODEV;
+ tas->acr |= TAS_ACR_ANALOG_PDOWN | TAS_ACR_B_MONAUREAL |
+ TAS_ACR_B_MON_SEL_RIGHT;
+ if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr))
+ return -ENODEV;
+
tmp = 0;
if (tas_write_reg(tas, TAS_REG_MCS2, 1, &tmp))
return -ENODEV;
+ tas3004_set_drc(tas);
+
+ /* Set treble & bass to 0dB */
+ tmp = 114;
+ tas_write_reg(tas, TAS_REG_TREBLE, 1, &tmp);
+ tas_write_reg(tas, TAS_REG_BASS, 1, &tmp);
+
+ tas->acr &= ~TAS_ACR_ANALOG_PDOWN;
+ if (tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr))
+ return -ENODEV;
+
+ return 0;
+}
+
+static int tas_switch_clock(struct codec_info_item *cii, enum clock_switch clock)
+{
+ struct tas *tas = cii->codec_data;
+
+ switch(clock) {
+ case CLOCK_SWITCH_PREPARE_SLAVE:
+ /* Clocks are going away, mute mute mute */
+ tas->codec.gpio->methods->all_amps_off(tas->codec.gpio);
+ tas->hw_enabled = 0;
+ break;
+ case CLOCK_SWITCH_SLAVE:
+ /* Clocks are back, re-init the codec */
+ tas_reset_init(tas);
+ tas_set_volume(tas);
+ tas_set_mixer(tas);
+ tas->hw_enabled = 1;
+ tas->codec.gpio->methods->all_amps_restore(tas->codec.gpio);
+ break;
+ default:
+ /* doesn't happen as of now */
+ return -EINVAL;
+ }
return 0;
}
@@ -427,6 +498,7 @@ static int tas_reset_init(struct tas *tas)
* our i2c device is suspended, and then take note of that! */
static int tas_suspend(struct tas *tas)
{
+ tas->hw_enabled = 0;
tas->acr |= TAS_ACR_ANALOG_PDOWN;
tas_write_reg(tas, TAS_REG_ACR, 1, &tas->acr);
return 0;
@@ -438,6 +510,7 @@ static int tas_resume(struct tas *tas)
tas_reset_init(tas);
tas_set_volume(tas);
tas_set_mixer(tas);
+ tas->hw_enabled = 1;
return 0;
}
@@ -463,6 +536,7 @@ static struct codec_info tas_codec_info = {
.bus_factor = 64,
.owner = THIS_MODULE,
.usable = tas_usable,
+ .switch_clock = tas_switch_clock,
#ifdef CONFIG_PM
.suspend = _tas_suspend,
.resume = _tas_resume,
@@ -483,6 +557,7 @@ static int tas_init_codec(struct aoa_codec *codec)
printk(KERN_ERR PFX "tas failed to initialise\n");
return -ENXIO;
}
+ tas->hw_enabled = 1;
if (tas->codec.soundbus_dev->attach_codec(tas->codec.soundbus_dev,
aoa_get_card(),
@@ -548,6 +623,7 @@ static int tas_create(struct i2c_adapter *adapter,
tas->i2c.driver = &tas_driver;
tas->i2c.adapter = adapter;
tas->i2c.addr = addr;
+ tas->drc_range = TAS3004_DRC_MAX;
strlcpy(tas->i2c.name, "tas audio codec", I2C_NAME_SIZE-1);
if (i2c_attach_client(&tas->i2c)) {
@@ -564,7 +640,9 @@ static int tas_create(struct i2c_adapter *adapter,
if (aoa_codec_register(&tas->codec)) {
goto detach;
}
- printk(KERN_DEBUG "snd-aoa-codec-tas: created and attached tas instance\n");
+ printk(KERN_DEBUG
+ "snd-aoa-codec-tas: tas found, addr 0x%02x on %s\n",
+ addr, node->full_name);
return 0;
detach:
i2c_detach_client(&tas->i2c);
diff --git a/sound/aoa/codecs/snd-aoa-codec-tas.h b/sound/aoa/codecs/snd-aoa-codec-tas.h
index daf81f45d83..ae177e3466e 100644
--- a/sound/aoa/codecs/snd-aoa-codec-tas.h
+++ b/sound/aoa/codecs/snd-aoa-codec-tas.h
@@ -44,4 +44,12 @@
#define TAS_REG_LEFT_BIQUAD6 0x10
#define TAS_REG_RIGHT_BIQUAD6 0x19
+#define TAS_REG_LEFT_LOUDNESS 0x21
+#define TAS_REG_RIGHT_LOUDNESS 0x22
+#define TAS_REG_LEFT_LOUDNESS_GAIN 0x23
+#define TAS_REG_RIGHT_LOUDNESS_GAIN 0x24
+
+#define TAS3001_DRC_MAX 0x5f
+#define TAS3004_DRC_MAX 0xef
+
#endif /* __SND_AOA_CODECTASH */