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openwrt-owl/target/linux/olpc/patches/110-olpc_sound.patch

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diff --git a/include/sound/ac97_codec.h b/include/sound/ac97_codec.h
index 246ac23..874a2c8 100644
--- a/include/sound/ac97_codec.h
+++ b/include/sound/ac97_codec.h
@@ -281,10 +281,12 @@
/* specific - Analog Devices */
#define AC97_AD_TEST 0x5a /* test register */
#define AC97_AD_TEST2 0x5c /* undocumented test register 2 */
+#define AC97_AD_HPFD_SHIFT 12 /* High Pass Filter Disable */
#define AC97_AD_CODEC_CFG 0x70 /* codec configuration */
#define AC97_AD_JACK_SPDIF 0x72 /* Jack Sense & S/PDIF */
#define AC97_AD_SERIAL_CFG 0x74 /* Serial Configuration */
#define AC97_AD_MISC 0x76 /* Misc Control Bits */
+#define AC97_AD_VREFD_SHIFT 2 /* V_REFOUT Disable (AD1888) */
/* specific - Cirrus Logic */
#define AC97_CSR_ACMODE 0x5e /* AC Mode Register */
diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index bbed644..090e852 100644
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -49,7 +49,7 @@ module_param(enable_loopback, bool, 0444);
MODULE_PARM_DESC(enable_loopback, "Enable AC97 ADC/DAC Loopback Control");
#ifdef CONFIG_SND_AC97_POWER_SAVE
-static int power_save;
+static int power_save = 1;
module_param(power_save, bool, 0644);
MODULE_PARM_DESC(power_save, "Enable AC97 power-saving control");
#endif
diff --git a/sound/pci/ac97/ac97_patch.c b/sound/pci/ac97/ac97_patch.c
index 581ebba..06637f7 100644
--- a/sound/pci/ac97/ac97_patch.c
+++ b/sound/pci/ac97/ac97_patch.c
@@ -1973,8 +1973,9 @@ static const struct snd_kcontrol_new snd_ac97_ad1888_controls[] = {
.get = snd_ac97_ad1888_lohpsel_get,
.put = snd_ac97_ad1888_lohpsel_put
},
- AC97_SINGLE("V_REFOUT Enable", AC97_AD_MISC, 2, 1, 1),
- AC97_SINGLE("High Pass Filter Enable", AC97_AD_TEST2, 12, 1, 1),
+ AC97_SINGLE("V_REFOUT Enable", AC97_AD_MISC, AC97_AD_VREFD_SHIFT, 1, 1),
+ AC97_SINGLE("High Pass Filter Enable", AC97_AD_TEST2,
+ AC97_AD_HPFD_SHIFT, 1, 1),
AC97_SINGLE("Spread Front to Surround and Center/LFE", AC97_AD_MISC, 7, 1, 0),
{
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
diff --git a/sound/pci/cs5535audio/Makefile b/sound/pci/cs5535audio/Makefile
index ad947b4..3866c4d 100644
--- a/sound/pci/cs5535audio/Makefile
+++ b/sound/pci/cs5535audio/Makefile
@@ -8,5 +8,9 @@ ifeq ($(CONFIG_PM),y)
snd-cs5535audio-objs += cs5535audio_pm.o
endif
+ifdef CONFIG_OLPC
+snd-cs5535audio-objs += cs5535audio_olpc.o
+endif
+
# Toplevel Module Dependency
obj-$(CONFIG_SND_CS5535AUDIO) += snd-cs5535audio.o
diff --git a/sound/pci/cs5535audio/cs5535audio.c b/sound/pci/cs5535audio/cs5535audio.c
index b8e75ef..389d9da 100644
--- a/sound/pci/cs5535audio/cs5535audio.c
+++ b/sound/pci/cs5535audio/cs5535audio.c
@@ -145,7 +145,7 @@ static unsigned short snd_cs5535audio_ac97_codec_read(struct snd_ac97 *ac97,
return snd_cs5535audio_codec_read(cs5535au, reg);
}
-static int snd_cs5535audio_mixer(struct cs5535audio *cs5535au)
+static int __devinit snd_cs5535audio_mixer(struct cs5535audio *cs5535au)
{
struct snd_card *card = cs5535au->card;
struct snd_ac97_bus *pbus;
@@ -160,10 +160,14 @@ static int snd_cs5535audio_mixer(struct cs5535audio *cs5535au)
return err;
memset(&ac97, 0, sizeof(ac97));
- ac97.scaps = AC97_SCAP_AUDIO|AC97_SCAP_SKIP_MODEM;
+ ac97.scaps = AC97_SCAP_AUDIO | AC97_SCAP_SKIP_MODEM
+ | AC97_SCAP_POWER_SAVE;
ac97.private_data = cs5535au;
ac97.pci = cs5535au->pci;
+ /* olpc_prequirks is dummied out if not olpc */
+ olpc_prequirks(card, &ac97);
+
if ((err = snd_ac97_mixer(pbus, &ac97, &cs5535au->ac97)) < 0) {
snd_printk(KERN_ERR "mixer failed\n");
return err;
@@ -171,6 +175,12 @@ static int snd_cs5535audio_mixer(struct cs5535audio *cs5535au)
snd_ac97_tune_hardware(cs5535au->ac97, ac97_quirks, ac97_quirk);
+ /* olpc_quirks is dummied out if not olpc */
+ if (( err = olpc_quirks(card, cs5535au->ac97)) < 0) {
+ snd_printk(KERN_ERR "olpc quirks failed\n");
+ return err;
+ }
+
return 0;
}
@@ -206,7 +216,6 @@ static void process_bm1_irq(struct cs5535audio *cs5535au)
static irqreturn_t snd_cs5535audio_interrupt(int irq, void *dev_id)
{
u16 acc_irq_stat;
- u8 bm_stat;
unsigned char count;
struct cs5535audio *cs5535au = dev_id;
@@ -217,7 +226,7 @@ static irqreturn_t snd_cs5535audio_interrupt(int irq, void *dev_id)
if (!acc_irq_stat)
return IRQ_NONE;
- for (count = 0; count < 10; count++) {
+ for (count = 0; count < 4; count++) {
if (acc_irq_stat & (1 << count)) {
switch (count) {
case IRQ_STS:
@@ -232,26 +241,9 @@ static irqreturn_t snd_cs5535audio_interrupt(int irq, void *dev_id)
case BM1_IRQ_STS:
process_bm1_irq(cs5535au);
break;
- case BM2_IRQ_STS:
- bm_stat = cs_readb(cs5535au, ACC_BM2_STATUS);
- break;
- case BM3_IRQ_STS:
- bm_stat = cs_readb(cs5535au, ACC_BM3_STATUS);
- break;
- case BM4_IRQ_STS:
- bm_stat = cs_readb(cs5535au, ACC_BM4_STATUS);
- break;
- case BM5_IRQ_STS:
- bm_stat = cs_readb(cs5535au, ACC_BM5_STATUS);
- break;
- case BM6_IRQ_STS:
- bm_stat = cs_readb(cs5535au, ACC_BM6_STATUS);
- break;
- case BM7_IRQ_STS:
- bm_stat = cs_readb(cs5535au, ACC_BM7_STATUS);
- break;
default:
- snd_printk(KERN_ERR "Unexpected irq src\n");
+ snd_printk(KERN_ERR "Unexpected irq src: "
+ "0x%x\n", acc_irq_stat);
break;
}
}
diff --git a/sound/pci/cs5535audio/cs5535audio.h b/sound/pci/cs5535audio/cs5535audio.h
index 4fd1f31..ff82f10 100644
--- a/sound/pci/cs5535audio/cs5535audio.h
+++ b/sound/pci/cs5535audio/cs5535audio.h
@@ -16,57 +16,28 @@
#define ACC_IRQ_STATUS 0x12
#define ACC_BM0_CMD 0x20
#define ACC_BM1_CMD 0x28
-#define ACC_BM2_CMD 0x30
-#define ACC_BM3_CMD 0x38
-#define ACC_BM4_CMD 0x40
-#define ACC_BM5_CMD 0x48
-#define ACC_BM6_CMD 0x50
-#define ACC_BM7_CMD 0x58
#define ACC_BM0_PRD 0x24
#define ACC_BM1_PRD 0x2C
-#define ACC_BM2_PRD 0x34
-#define ACC_BM3_PRD 0x3C
-#define ACC_BM4_PRD 0x44
-#define ACC_BM5_PRD 0x4C
-#define ACC_BM6_PRD 0x54
-#define ACC_BM7_PRD 0x5C
#define ACC_BM0_STATUS 0x21
#define ACC_BM1_STATUS 0x29
-#define ACC_BM2_STATUS 0x31
-#define ACC_BM3_STATUS 0x39
-#define ACC_BM4_STATUS 0x41
-#define ACC_BM5_STATUS 0x49
-#define ACC_BM6_STATUS 0x51
-#define ACC_BM7_STATUS 0x59
#define ACC_BM0_PNTR 0x60
#define ACC_BM1_PNTR 0x64
-#define ACC_BM2_PNTR 0x68
-#define ACC_BM3_PNTR 0x6C
-#define ACC_BM4_PNTR 0x70
-#define ACC_BM5_PNTR 0x74
-#define ACC_BM6_PNTR 0x78
-#define ACC_BM7_PNTR 0x7C
+
/* acc_codec bar0 reg bits */
/* ACC_IRQ_STATUS */
#define IRQ_STS 0
#define WU_IRQ_STS 1
#define BM0_IRQ_STS 2
#define BM1_IRQ_STS 3
-#define BM2_IRQ_STS 4
-#define BM3_IRQ_STS 5
-#define BM4_IRQ_STS 6
-#define BM5_IRQ_STS 7
-#define BM6_IRQ_STS 8
-#define BM7_IRQ_STS 9
/* ACC_BMX_STATUS */
#define EOP (1<<0)
#define BM_EOP_ERR (1<<1)
/* ACC_BMX_CTL */
-#define BM_CTL_EN 0x00000001
-#define BM_CTL_PAUSE 0x00000011
-#define BM_CTL_DIS 0x00000000
-#define BM_CTL_BYTE_ORD_LE 0x00000000
-#define BM_CTL_BYTE_ORD_BE 0x00000100
+#define BM_CTL_EN 0x01
+#define BM_CTL_PAUSE 0x03
+#define BM_CTL_DIS 0x00
+#define BM_CTL_BYTE_ORD_LE 0x00
+#define BM_CTL_BYTE_ORD_BE 0x04
/* cs5535 specific ac97 codec register defines */
#define CMD_MASK 0xFF00FFFF
#define CMD_NEW 0x00010000
@@ -106,8 +77,8 @@ struct cs5535audio_dma {
struct snd_pcm_substream *substream;
unsigned int buf_addr, buf_bytes;
unsigned int period_bytes, periods;
- int suspended;
u32 saved_prd;
+ int pcm_open_flag;
};
struct cs5535audio {
@@ -123,8 +94,21 @@ struct cs5535audio {
struct cs5535audio_dma dmas[NUM_CS5535AUDIO_DMAS];
};
+#ifdef CONFIG_PM
int snd_cs5535audio_suspend(struct pci_dev *pci, pm_message_t state);
int snd_cs5535audio_resume(struct pci_dev *pci);
+#endif
+
+#ifdef CONFIG_OLPC
+void olpc_prequirks(struct snd_card *card, struct snd_ac97_template *ac97) __devinit;
+int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97) __devinit;
+int olpc_ai_enable(struct snd_ac97 *ac97, u8 val);
+#else
+#define olpc_prequirks(arg,arg2) do {} while (0)
+#define olpc_quirks(arg,arg2) (0)
+#define olpc_ai_enable(a, v) (0)
+#endif
+
int __devinit snd_cs5535audio_pcm(struct cs5535audio *cs5535audio);
#endif /* __SOUND_CS5535AUDIO_H */
diff --git a/sound/pci/cs5535audio/cs5535audio_pcm.c b/sound/pci/cs5535audio/cs5535audio_pcm.c
index 5450a9e..d23f8ea 100644
--- a/sound/pci/cs5535audio/cs5535audio_pcm.c
+++ b/sound/pci/cs5535audio/cs5535audio_pcm.c
@@ -164,6 +164,7 @@ static int cs5535audio_build_dma_packets(struct cs5535audio *cs5535au,
jmpprd_addr = cpu_to_le32(lastdesc->addr +
(sizeof(struct cs5535audio_dma_desc)*periods));
+ dma->substream = substream;
dma->period_bytes = period_bytes;
dma->periods = periods;
spin_lock_irq(&cs5535au->reg_lock);
@@ -241,6 +242,7 @@ static void cs5535audio_clear_dma_packets(struct cs5535audio *cs5535au,
{
snd_dma_free_pages(&dma->desc_buf);
dma->desc_buf.area = NULL;
+ dma->substream = NULL;
}
static int snd_cs5535audio_hw_params(struct snd_pcm_substream *substream,
@@ -260,6 +262,9 @@ static int snd_cs5535audio_hw_params(struct snd_pcm_substream *substream,
err = cs5535audio_build_dma_packets(cs5535au, dma, substream,
params_periods(hw_params),
params_period_bytes(hw_params));
+ if (!err)
+ dma->pcm_open_flag = 1;
+
return err;
}
@@ -268,6 +273,15 @@ static int snd_cs5535audio_hw_free(struct snd_pcm_substream *substream)
struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream);
struct cs5535audio_dma *dma = substream->runtime->private_data;
+ if (dma->pcm_open_flag) {
+ if (substream == cs5535au->playback_substream)
+ snd_ac97_update_power(cs5535au->ac97,
+ AC97_PCM_FRONT_DAC_RATE, 0);
+ else
+ snd_ac97_update_power(cs5535au->ac97,
+ AC97_PCM_LR_ADC_RATE, 0);
+ dma->pcm_open_flag = 0;
+ }
cs5535audio_clear_dma_packets(cs5535au, dma, substream);
return snd_pcm_lib_free_pages(substream);
}
@@ -298,14 +312,12 @@ static int snd_cs5535audio_trigger(struct snd_pcm_substream *substream, int cmd)
break;
case SNDRV_PCM_TRIGGER_RESUME:
dma->ops->enable_dma(cs5535au);
- dma->suspended = 0;
break;
case SNDRV_PCM_TRIGGER_STOP:
dma->ops->disable_dma(cs5535au);
break;
case SNDRV_PCM_TRIGGER_SUSPEND:
dma->ops->disable_dma(cs5535au);
- dma->suspended = 1;
break;
default:
snd_printk(KERN_ERR "unhandled trigger\n");
@@ -344,6 +356,7 @@ static int snd_cs5535audio_capture_open(struct snd_pcm_substream *substream)
int err;
struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_ac97 *ac97 = cs5535au->ac97;
runtime->hw = snd_cs5535audio_capture;
cs5535au->capture_substream = substream;
@@ -352,11 +365,29 @@ static int snd_cs5535audio_capture_open(struct snd_pcm_substream *substream)
if ((err = snd_pcm_hw_constraint_integer(runtime,
SNDRV_PCM_HW_PARAM_PERIODS)) < 0)
return err;
- return 0;
+
+#ifdef CONFIG_OLPC
+ /* Disable Analog Input */
+ olpc_ai_enable(ac97, 0);
+ /* Enable V_ref bias while recording. */
+ snd_ac97_update_bits(ac97, AC97_AD_MISC, 1<<AC97_AD_VREFD_SHIFT, 0);
+#endif
+ return err;
}
static int snd_cs5535audio_capture_close(struct snd_pcm_substream *substream)
{
+#ifdef CONFIG_OLPC
+ struct cs5535audio *cs5535au = snd_pcm_substream_chip(substream);
+ struct snd_ac97 *ac97 = cs5535au->ac97;
+
+ /* Disable Analog Input */
+ olpc_ai_enable(ac97, 0);
+ /* Disable V_ref bias. */
+ snd_ac97_update_bits(ac97, AC97_AD_MISC, 1<<AC97_AD_VREFD_SHIFT,
+ 1<<AC97_AD_VREFD_SHIFT);
+#endif
+
return 0;
}
diff --git a/sound/pci/cs5535audio/cs5535audio_pm.c b/sound/pci/cs5535audio/cs5535audio_pm.c
index 3e4d198..838708f 100644
--- a/sound/pci/cs5535audio/cs5535audio_pm.c
+++ b/sound/pci/cs5535audio/cs5535audio_pm.c
@@ -64,18 +64,21 @@ int snd_cs5535audio_suspend(struct pci_dev *pci, pm_message_t state)
int i;
snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+ snd_pcm_suspend_all(cs5535au->pcm);
+ snd_ac97_suspend(cs5535au->ac97);
for (i = 0; i < NUM_CS5535AUDIO_DMAS; i++) {
struct cs5535audio_dma *dma = &cs5535au->dmas[i];
- if (dma && dma->substream && !dma->suspended)
+ if (dma && dma->substream)
dma->saved_prd = dma->ops->read_prd(cs5535au);
}
- snd_pcm_suspend_all(cs5535au->pcm);
- snd_ac97_suspend(cs5535au->ac97);
/* save important regs, then disable aclink in hw */
snd_cs5535audio_stop_hardware(cs5535au);
+ if (pci_save_state(pci)) {
+ printk(KERN_ERR "cs5535audio: pci_save_state failed!\n");
+ return -EIO;
+ }
pci_disable_device(pci);
- pci_save_state(pci);
pci_set_power_state(pci, pci_choose_state(pci, state));
return 0;
}
@@ -89,7 +92,12 @@ int snd_cs5535audio_resume(struct pci_dev *pci)
int i;
pci_set_power_state(pci, PCI_D0);
- pci_restore_state(pci);
+ if (pci_restore_state(pci) < 0) {
+ printk(KERN_ERR "cs5535audio: pci_restore_state failed, "
+ "disabling device\n");
+ snd_card_disconnect(card);
+ return -EIO;
+ }
if (pci_enable_device(pci) < 0) {
printk(KERN_ERR "cs5535audio: pci_enable_device failed, "
"disabling device\n");
@@ -112,17 +120,17 @@ int snd_cs5535audio_resume(struct pci_dev *pci)
if (!timeout)
snd_printk(KERN_ERR "Failure getting AC Link ready\n");
- /* we depend on ac97 to perform the codec power up */
- snd_ac97_resume(cs5535au->ac97);
/* set up rate regs, dma. actual initiation is done in trig */
for (i = 0; i < NUM_CS5535AUDIO_DMAS; i++) {
struct cs5535audio_dma *dma = &cs5535au->dmas[i];
- if (dma && dma->substream && dma->suspended) {
+ if (dma && dma->substream) {
dma->substream->ops->prepare(dma->substream);
dma->ops->setup_prd(cs5535au, dma->saved_prd);
}
}
-
+
+ /* we depend on ac97 to perform the codec power up */
+ snd_ac97_resume(cs5535au->ac97);
snd_power_change_state(card, SNDRV_CTL_POWER_D0);
return 0;
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