[ALSA] PCM resume cleanups

Digigram VX core,CS4231 driver,ATIIXP driver,VIA82xx driver
VIA82xx-modem driver,au88x0 driver,CS46xx driver,Trident driver
This patch disables SNDRV_PCM_INFO_RESUME flag for drivers which does not
support the full resume.

Signed-off-by: Jaroslav Kysela <perex@suse.cz>

8 files changed, 32 insertions, 19 deletions

diff --git a/sound/drivers/vx/vx_pcm.c b/sound/drivers/vx/vx_pcm.c
index af381b1..d4becf4 100644
--- a/sound/drivers/vx/vx_pcm.c
+++ b/sound/drivers/vx/vx_pcm.c
@@ -549,8 +549,8 @@ static int vx_stop_stream(vx_core_t *chip, vx_pipe_t *pipe)
 
 static snd_pcm_hardware_t vx_pcm_playback_hw = {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
-				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID |
-				 SNDRV_PCM_INFO_RESUME),
+				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID /*|*/
+				 /*SNDRV_PCM_INFO_RESUME*/),
 	.formats =		/*SNDRV_PCM_FMTBIT_U8 |*/ SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_3LE,
 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 	.rate_min =		5000,
@@ -949,8 +949,8 @@ static snd_pcm_ops_t vx_pcm_playback_ops = {
 
 static snd_pcm_hardware_t vx_pcm_capture_hw = {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
-				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID |
-				 SNDRV_PCM_INFO_RESUME),
+				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID /*|*/
+				 /*SNDRV_PCM_INFO_RESUME*/),
 	.formats =		/*SNDRV_PCM_FMTBIT_U8 |*/ SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_3LE,
 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 	.rate_min =		5000,
diff --git a/sound/isa/cs423x/cs4231_lib.c b/sound/isa/cs423x/cs4231_lib.c
index 3e7a2a3..3199941 100644
--- a/sound/isa/cs423x/cs4231_lib.c
+++ b/sound/isa/cs423x/cs4231_lib.c
@@ -1346,6 +1346,8 @@ static void snd_cs4231_suspend(cs4231_t *chip)
 	int reg;
 	unsigned long flags;
 	
+	if (chip->pcm)
+		snd_pcm_suspend_all(chip->pcm);
 	spin_lock_irqsave(&chip->reg_lock, flags);
 	for (reg = 0; reg < 32; reg++)
 		chip->image[reg] = snd_cs4231_in(chip, reg);
diff --git a/sound/pci/atiixp.c b/sound/pci/atiixp.c
index cafab4a..904d173 100644
--- a/sound/pci/atiixp.c
+++ b/sound/pci/atiixp.c
@@ -248,6 +248,7 @@ struct snd_atiixp_dma {
 	unsigned int period_bytes, periods;
 	int opened;
 	int running;
+	int suspended;
 	int pcm_open_flag;
 	int ac97_pcm_type;	/* index # of ac97_pcm to access, -1 = not used */
 	unsigned int saved_curptr;
@@ -699,12 +700,18 @@ static int snd_atiixp_pcm_trigger(snd_pcm_substream_t *substream, int cmd)
 	spin_lock(&chip->reg_lock);
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+	case SNDRV_PCM_TRIGGER_RESUME:
 		dma->ops->enable_transfer(chip, 1);
 		dma->running = 1;
+		dma->suspended = 0;
 		break;
 	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
 		dma->ops->enable_transfer(chip, 0);
 		dma->running = 0;
+		dma->suspended = cmd == SNDRV_PCM_TRIGGER_SUSPEND;
 		break;
 	default:
 		err = -EINVAL;
@@ -975,6 +982,7 @@ static snd_pcm_hardware_t snd_atiixp_pcm_hw =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
+				 SNDRV_PCM_INFO_PAUSE |
 				 SNDRV_PCM_INFO_RESUME |
 				 SNDRV_PCM_INFO_MMAP_VALID),
 	.formats =		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
@@ -1443,7 +1451,7 @@ static int snd_atiixp_resume(snd_card_t *card)
 	for (i = 0; i < NUM_ATI_PCMDEVS; i++)
 		if (chip->pcmdevs[i]) {
 			atiixp_dma_t *dma = &chip->dmas[i];
-			if (dma->substream && dma->running) {
+			if (dma->substream && dma->suspended) {
 				dma->ops->enable_dma(chip, 1);
 				writel((u32)dma->desc_buf.addr | ATI_REG_LINKPTR_EN,
 				       chip->remap_addr + dma->ops->llp_offset);
diff --git a/sound/pci/au88x0/au88x0_pcm.c b/sound/pci/au88x0/au88x0_pcm.c
index 04dcefd..de95bd6 100644
--- a/sound/pci/au88x0/au88x0_pcm.c
+++ b/sound/pci/au88x0/au88x0_pcm.c
@@ -33,7 +33,7 @@
 /* hardware definition */
 static snd_pcm_hardware_t snd_vortex_playback_hw_adb = {
 	.info =
-	    (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_RESUME |
+	    (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
 	     SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
 	     SNDRV_PCM_INFO_MMAP_VALID),
 	.formats =
@@ -58,7 +58,7 @@ static snd_pcm_hardware_t snd_vortex_playback_hw_adb = {
 #ifndef CHIP_AU8820
 static snd_pcm_hardware_t snd_vortex_playback_hw_a3d = {
 	.info =
-	    (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_RESUME |
+	    (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
 	     SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
 	     SNDRV_PCM_INFO_MMAP_VALID),
 	.formats =
@@ -78,7 +78,7 @@ static snd_pcm_hardware_t snd_vortex_playback_hw_a3d = {
 #endif
 static snd_pcm_hardware_t snd_vortex_playback_hw_spdif = {
 	.info =
-	    (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_RESUME |
+	    (SNDRV_PCM_INFO_MMAP | /* SNDRV_PCM_INFO_RESUME | */
 	     SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_INTERLEAVED |
 	     SNDRV_PCM_INFO_MMAP_VALID),
 	.formats =
diff --git a/sound/pci/cs46xx/cs46xx_lib.c b/sound/pci/cs46xx/cs46xx_lib.c
index 5eb9e0b..4b05215 100644
--- a/sound/pci/cs46xx/cs46xx_lib.c
+++ b/sound/pci/cs46xx/cs46xx_lib.c
@@ -1243,8 +1243,8 @@ static snd_pcm_hardware_t snd_cs46xx_playback =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_INTERLEAVED | 
-				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
-				 SNDRV_PCM_INFO_RESUME),
+				 SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
+				 /*SNDRV_PCM_INFO_RESUME*/),
 	.formats =		(SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 |
 				 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE |
 				 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE),
@@ -1265,8 +1265,8 @@ static snd_pcm_hardware_t snd_cs46xx_capture =
 {
 	.info =			(SNDRV_PCM_INFO_MMAP |
 				 SNDRV_PCM_INFO_INTERLEAVED |
-				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
-				 SNDRV_PCM_INFO_RESUME),
+				 SNDRV_PCM_INFO_BLOCK_TRANSFER /*|*/
+				 /*SNDRV_PCM_INFO_RESUME*/),
 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
 	.rate_min =		5500,
diff --git a/sound/pci/trident/trident_main.c b/sound/pci/trident/trident_main.c
index 29d89bfb..f30d9d9 100644
--- a/sound/pci/trident/trident_main.c
+++ b/sound/pci/trident/trident_main.c
@@ -1689,7 +1689,7 @@ static snd_pcm_hardware_t snd_trident_playback =
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
-				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
+				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
 	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
 				 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
@@ -1714,7 +1714,7 @@ static snd_pcm_hardware_t snd_trident_capture =
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
-				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
+				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
 	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
 				 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
 	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
@@ -1739,7 +1739,7 @@ static snd_pcm_hardware_t snd_trident_foldback =
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
-				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
+				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
 	.rates =		SNDRV_PCM_RATE_48000,
 	.rate_min =		48000,
@@ -1763,7 +1763,7 @@ static snd_pcm_hardware_t snd_trident_spdif =
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
-				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
+				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
 	.rates =		(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
 				 SNDRV_PCM_RATE_48000),
@@ -1784,7 +1784,7 @@ static snd_pcm_hardware_t snd_trident_spdif_7018 =
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
-				 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME),
+				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
 	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
 	.rates =		SNDRV_PCM_RATE_48000,
 	.rate_min =		48000,
diff --git a/sound/pci/via82xx.c b/sound/pci/via82xx.c
index 819f27b..52ec785 100644
--- a/sound/pci/via82xx.c
+++ b/sound/pci/via82xx.c
@@ -663,10 +663,12 @@ static int snd_via82xx_pcm_trigger(snd_pcm_substream_t * substream, int cmd)
 		val = 0;
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
 		val |= VIA_REG_CTRL_START;
 		viadev->running = 1;
 		break;
 	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
 		val = VIA_REG_CTRL_TERMINATE;
 		viadev->running = 0;
 		break;
@@ -1035,7 +1037,7 @@ static snd_pcm_hardware_t snd_via82xx_hw =
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 				 SNDRV_PCM_INFO_MMAP_VALID |
-				 SNDRV_PCM_INFO_RESUME |
+				 /* SNDRV_PCM_INFO_RESUME | */
 				 SNDRV_PCM_INFO_PAUSE),
 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 	.rates =		SNDRV_PCM_RATE_48000,
diff --git a/sound/pci/via82xx_modem.c b/sound/pci/via82xx_modem.c
index 4a9779c..5872d43 100644
--- a/sound/pci/via82xx_modem.c
+++ b/sound/pci/via82xx_modem.c
@@ -521,6 +521,7 @@ static int snd_via82xx_pcm_trigger(snd_pcm_substream_t * substream, int cmd)
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
 		val |= VIA_REG_CTRL_START;
 		viadev->running = 1;
 		break;
@@ -697,7 +698,7 @@ static snd_pcm_hardware_t snd_via82xx_hw =
 	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
 				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
 				 SNDRV_PCM_INFO_MMAP_VALID |
-				 SNDRV_PCM_INFO_RESUME |
+				 /* SNDRV_PCM_INFO_RESUME | */
 				 SNDRV_PCM_INFO_PAUSE),
 	.formats =		SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
 	.rates =		SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_KNOT,