[ALSA] PCI modem drivers update

ATIIXP-modem driver,Intel8x0-modem driver,VIA82xx-modem driver
Modem drivers (atiixp-modem, intel8x0m, via82xx-modem) migration
for using MC97 generic modem mixer for off-hook operation.

Signed-off-by: Sasha Khapyorsky <sashak@smlink.com>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 17 insertions, 23 deletions

diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c
index 9220aae632b..a6b4b8d589f 100644
--- a/sound/pci/atiixp_modem.c
+++ b/sound/pci/atiixp_modem.c
@@ -463,6 +463,11 @@ static unsigned short snd_atiixp_ac97_read(ac97_t *ac97, unsigned short reg)
 static void snd_atiixp_ac97_write(ac97_t *ac97, unsigned short reg, unsigned short val)
 {
 	atiixp_t *chip = ac97->private_data;
+	if (reg == AC97_GPIO_STATUS) {
+		atiixp_write(chip, MODEM_OUT_GPIO,
+			(val << ATI_REG_MODEM_OUT_GPIO_DATA_SHIFT) | ATI_REG_MODEM_OUT_GPIO_EN);
+		return;
+	}
 	snd_atiixp_codec_write(chip, ac97->num, reg, val);
 }
 
@@ -663,44 +668,33 @@ static int snd_atiixp_pcm_trigger(snd_pcm_substream_t *substream, int cmd)
 {
 	atiixp_t *chip = snd_pcm_substream_chip(substream);
 	atiixp_dma_t *dma = (atiixp_dma_t *)substream->runtime->private_data;
-	unsigned int reg = 0;
-	int i;
+	int err = 0;
 
 	snd_assert(dma->ops->enable_transfer && dma->ops->flush_dma, return -EINVAL);
 
-	if (cmd != SNDRV_PCM_TRIGGER_START && cmd != SNDRV_PCM_TRIGGER_STOP)
-		return -EINVAL;
-
 	spin_lock(&chip->reg_lock);
-
-	/* hook off/on: via GPIO_OUT */
-	for (i = 0; i < NUM_ATI_CODECS; i++) {
-		if (chip->ac97[i]) {
-			reg = snd_ac97_read(chip->ac97[i], AC97_GPIO_STATUS);
-			break;
-	}
-	}
-	if(cmd == SNDRV_PCM_TRIGGER_START)
-		reg |= AC97_GPIO_LINE1_OH;
-	else
-		reg &= ~AC97_GPIO_LINE1_OH;
-	reg = (reg << ATI_REG_MODEM_OUT_GPIO_DATA_SHIFT) | ATI_REG_MODEM_OUT_GPIO_EN ;
-	atiixp_write(chip, MODEM_OUT_GPIO, reg);
-
-	if (cmd == SNDRV_PCM_TRIGGER_START) {
+	switch(cmd) {
+	case SNDRV_PCM_TRIGGER_START:
 		dma->ops->enable_transfer(chip, 1);
 		dma->running = 1;
-	} else {
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
 		dma->ops->enable_transfer(chip, 0);
 		dma->running = 0;
+		break;
+	default:
+		err = -EINVAL;
+		break;
 	}
+	if (! err) {
 	snd_atiixp_check_bus_busy(chip);
 	if (cmd == SNDRV_PCM_TRIGGER_STOP) {
 		dma->ops->flush_dma(chip);
 		snd_atiixp_check_bus_busy(chip);
 	}
+	}
 	spin_unlock(&chip->reg_lock);
-	return 0;
+	return err;
 }