summaryrefslogtreecommitdiffstats
path: root/target/linux/olpc/patches-2.6.23/110-olpc_sound.patch
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/olpc/patches-2.6.23/110-olpc_sound.patch')
-rw-r--r--target/linux/olpc/patches-2.6.23/110-olpc_sound.patch414
1 files changed, 414 insertions, 0 deletions
diff --git a/target/linux/olpc/patches-2.6.23/110-olpc_sound.patch b/target/linux/olpc/patches-2.6.23/110-olpc_sound.patch
new file mode 100644
index 000000000..c322e46f5
--- /dev/null
+++ b/target/linux/olpc/patches-2.6.23/110-olpc_sound.patch
@@ -0,0 +1,414 @@
+Index: linux-2.6.23.17/include/sound/ac97_codec.h
+===================================================================
+--- linux-2.6.23.17.orig/include/sound/ac97_codec.h
++++ linux-2.6.23.17/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 */
+Index: linux-2.6.23.17/sound/pci/ac97/ac97_codec.c
+===================================================================
+--- linux-2.6.23.17.orig/sound/pci/ac97/ac97_codec.c
++++ linux-2.6.23.17/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
+Index: linux-2.6.23.17/sound/pci/ac97/ac97_patch.c
+===================================================================
+--- linux-2.6.23.17.orig/sound/pci/ac97/ac97_patch.c
++++ linux-2.6.23.17/sound/pci/ac97/ac97_patch.c
+@@ -1973,8 +1973,9 @@ static const struct snd_kcontrol_new snd
+ .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,
+Index: linux-2.6.23.17/sound/pci/cs5535audio/Makefile
+===================================================================
+--- linux-2.6.23.17.orig/sound/pci/cs5535audio/Makefile
++++ linux-2.6.23.17/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
+Index: linux-2.6.23.17/sound/pci/cs5535audio/cs5535audio.c
+===================================================================
+--- linux-2.6.23.17.orig/sound/pci/cs5535audio/cs5535audio.c
++++ linux-2.6.23.17/sound/pci/cs5535audio/cs5535audio.c
+@@ -145,7 +145,7 @@ static unsigned short snd_cs5535audio_ac
+ 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
+ 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
+
+ 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 cs553
+ 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_inter
+
+ 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_inter
+ 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;
+ }
+ }
+Index: linux-2.6.23.17/sound/pci/cs5535audio/cs5535audio.h
+===================================================================
+--- linux-2.6.23.17.orig/sound/pci/cs5535audio/cs5535audio.h
++++ linux-2.6.23.17/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 */
+Index: linux-2.6.23.17/sound/pci/cs5535audio/cs5535audio_pcm.c
+===================================================================
+--- linux-2.6.23.17.orig/sound/pci/cs5535audio/cs5535audio_pcm.c
++++ linux-2.6.23.17/sound/pci/cs5535audio/cs5535audio_pcm.c
+@@ -164,6 +164,7 @@ static int cs5535audio_build_dma_packets
+ 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_packet
+ {
+ 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(str
+ 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(struc
+ 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(struc
+ 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(
+ 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(
+ 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;
+ }
+
+Index: linux-2.6.23.17/sound/pci/cs5535audio/cs5535audio_pm.c
+===================================================================
+--- linux-2.6.23.17.orig/sound/pci/cs5535audio/cs5535audio_pm.c
++++ linux-2.6.23.17/sound/pci/cs5535audio/cs5535audio_pm.c
+@@ -64,18 +64,21 @@ int snd_cs5535audio_suspend(struct pci_d
+ 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_de
+ 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_de
+ 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;
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 13:05:30 +0000