[ALSA] oxygen: make the I2S format configurable

Add proper register bit symbols for the I2S format field, and allow card
models to configure the I2S format to be used for the DACs and ADCs.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

sound/pci/oxygen/oxygen.c

@@ -285,6 +285,8 @@ static const struct oxygen_model model_generic = {
 			 OXYGEN_CHANNEL_MULTICH |
 			 OXYGEN_CHANNEL_AC97,
 	.function_flags = OXYGEN_FUNCTION_ENABLE_SPI_4_5,
+	.dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
+	.adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 };
 static const struct oxygen_model model_meridian = {
 	.shortname = "C-Media CMI8788",
@@ -304,6 +306,8 @@ static const struct oxygen_model model_meridian = {
 			 OXYGEN_CHANNEL_MULTICH |
 			 OXYGEN_CHANNEL_AC97,
 	.function_flags = OXYGEN_FUNCTION_ENABLE_SPI_4_5,
+	.dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
+	.adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 };
 
 static int __devinit generic_oxygen_probe(struct pci_dev *pci,

sound/pci/oxygen/oxygen.h

@@ -86,6 +86,8 @@ struct oxygen_model {
 	void (*update_dac_mute)(struct oxygen *chip);
 	u8 used_channels;
 	u8 function_flags;
+	u16 dac_i2s_format;
+	u16 adc_i2s_format;
 };
 
 /* oxygen_lib.c */

sound/pci/oxygen/oxygen_pcm.c

@@ -313,12 +313,12 @@ static unsigned int oxygen_i2s_magic2(struct snd_pcm_hw_params *hw_params)
 	return params_rate(hw_params) <= 96000 ? 0x10 : 0x00;
 }
 
-static unsigned int oxygen_i2s_format(struct snd_pcm_hw_params *hw_params)
+static unsigned int oxygen_i2s_bits(struct snd_pcm_hw_params *hw_params)
 {
 	if (params_format(hw_params) == SNDRV_PCM_FORMAT_S32_LE)
-		return OXYGEN_I2S_FORMAT_24;
+		return OXYGEN_I2S_BITS_24;
 	else
-		return OXYGEN_I2S_FORMAT_16;
+		return OXYGEN_I2S_BITS_16;
 }
 
 static unsigned int oxygen_play_channels(struct snd_pcm_hw_params *hw_params)
@@ -386,13 +386,15 @@ static int oxygen_rec_a_hw_params(struct snd_pcm_substream *substream,
 	oxygen_write8_masked(chip, OXYGEN_REC_FORMAT,
 			     oxygen_format(hw_params) << OXYGEN_REC_FORMAT_A_SHIFT,
 			     OXYGEN_REC_FORMAT_A_MASK);
-	oxygen_write8_masked(chip, OXYGEN_I2S_A_FORMAT,
-			     oxygen_rate(hw_params) |
-			     oxygen_i2s_magic2(hw_params) |
-			     oxygen_i2s_format(hw_params),
-			     OXYGEN_I2S_RATE_MASK |
-			     OXYGEN_I2S_MAGIC2_MASK |
-			     OXYGEN_I2S_FORMAT_MASK);
+	oxygen_write16_masked(chip, OXYGEN_I2S_A_FORMAT,
+			      oxygen_rate(hw_params) |
+			      oxygen_i2s_magic2(hw_params) |
+			      chip->model->adc_i2s_format |
+			      oxygen_i2s_bits(hw_params),
+			      OXYGEN_I2S_RATE_MASK |
+			      OXYGEN_I2S_FORMAT_MASK |
+			      OXYGEN_I2S_MAGIC2_MASK |
+			      OXYGEN_I2S_BITS_MASK);
 	oxygen_clear_bits8(chip, OXYGEN_REC_ROUTING, 0x08);
 	spin_unlock_irq(&chip->reg_lock);
 
@@ -416,13 +418,15 @@ static int oxygen_rec_b_hw_params(struct snd_pcm_substream *substream,
 	oxygen_write8_masked(chip, OXYGEN_REC_FORMAT,
 			     oxygen_format(hw_params) << OXYGEN_REC_FORMAT_B_SHIFT,
 			     OXYGEN_REC_FORMAT_B_MASK);
-	oxygen_write8_masked(chip, OXYGEN_I2S_B_FORMAT,
-			     oxygen_rate(hw_params) |
-			     oxygen_i2s_magic2(hw_params) |
-			     oxygen_i2s_format(hw_params),
-			     OXYGEN_I2S_RATE_MASK |
-			     OXYGEN_I2S_MAGIC2_MASK |
-			     OXYGEN_I2S_FORMAT_MASK);
+	oxygen_write16_masked(chip, OXYGEN_I2S_B_FORMAT,
+			      oxygen_rate(hw_params) |
+			      oxygen_i2s_magic2(hw_params) |
+			      chip->model->adc_i2s_format |
+			      oxygen_i2s_bits(hw_params),
+			      OXYGEN_I2S_RATE_MASK |
+			      OXYGEN_I2S_FORMAT_MASK |
+			      OXYGEN_I2S_MAGIC2_MASK |
+			      OXYGEN_I2S_BITS_MASK);
 	oxygen_clear_bits8(chip, OXYGEN_REC_ROUTING, 0x10);
 	spin_unlock_irq(&chip->reg_lock);
 
@@ -493,8 +497,12 @@ static int oxygen_multich_hw_params(struct snd_pcm_substream *substream,
 			     oxygen_format(hw_params) << OXYGEN_MULTICH_FORMAT_SHIFT,
 			     OXYGEN_MULTICH_FORMAT_MASK);
 	oxygen_write16_masked(chip, OXYGEN_I2S_MULTICH_FORMAT,
-			      oxygen_rate(hw_params) | oxygen_i2s_format(hw_params),
-			      OXYGEN_I2S_RATE_MASK | OXYGEN_I2S_FORMAT_MASK);
+			      oxygen_rate(hw_params) |
+			      chip->model->dac_i2s_format |
+			      oxygen_i2s_bits(hw_params),
+			      OXYGEN_I2S_RATE_MASK |
+			      OXYGEN_I2S_FORMAT_MASK |
+			      OXYGEN_I2S_BITS_MASK);
 	oxygen_clear_bits16(chip, OXYGEN_PLAY_ROUTING, 0x001f);
 	oxygen_update_dac_routing(chip);
 	oxygen_update_spdif_source(chip);

sound/pci/oxygen/oxygen_regs.h

@@ -105,18 +105,20 @@
 #define  OXYGEN_RATE_96000		0x0005
 #define  OXYGEN_RATE_176400		0x0006
 #define  OXYGEN_RATE_192000		0x0007
-#define  OXYGEN_I2S_MAGIC1_MASK		0x0008
+#define  OXYGEN_I2S_FORMAT_MASK		0x0008
+#define  OXYGEN_I2S_FORMAT_I2S		0x0000
+#define  OXYGEN_I2S_FORMAT_LJUST	0x0008
 #define  OXYGEN_I2S_MAGIC2_MASK		0x0030
-#define  OXYGEN_I2S_FORMAT_MASK		0x00c0
-#define  OXYGEN_I2S_FORMAT_16		0x0000
-#define  OXYGEN_I2S_FORMAT_20		0x0040
-#define  OXYGEN_I2S_FORMAT_24		0x0080
-#define  OXYGEN_I2S_FORMAT_32		0x00c0
+#define  OXYGEN_I2S_BITS_MASK		0x00c0
+#define  OXYGEN_I2S_BITS_16		0x0000
+#define  OXYGEN_I2S_BITS_20		0x0040
+#define  OXYGEN_I2S_BITS_24		0x0080
+#define  OXYGEN_I2S_BITS_32		0x00c0
 
 #define OXYGEN_I2S_A_FORMAT		0x62
 #define OXYGEN_I2S_B_FORMAT		0x64
 #define OXYGEN_I2S_C_FORMAT		0x66
-/* OXYGEN_I2S_RATE_* and OXYGEN_I2S_FORMAT_* */
+/* like OXYGEN_I2S_MULTICH_FORMAT */
 
 #define OXYGEN_SPDIF_CONTROL		0x70
 #define  OXYGEN_SPDIF_OUT_ENABLE	0x00000002

sound/pci/oxygen/virtuoso.c

@@ -102,10 +102,6 @@ static void xonar_init(struct oxygen *chip)
 
 	oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x8c);
 	oxygen_write16_masked(chip, OXYGEN_GPIO_DATA, 0x00, 0x8c);
-#if 0
-	oxygen_clear_bits16(chip, OXYGEN_I2S_MULTICH_FORMAT,
-			    OXYGEN_I2S_MAGIC1_MASK);
-#endif
 	oxygen_ac97_set_bits(chip, 0, 0x62, 0x0080);
 	msleep(300);
 	oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x100);
@@ -253,6 +249,8 @@ static const struct oxygen_model model_xonar = {
 			 OXYGEN_CHANNEL_SPDIF |
 			 OXYGEN_CHANNEL_MULTICH,
 	.function_flags = OXYGEN_FUNCTION_ENABLE_SPI_4_5,
+	.dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
+	.adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
 };
 
 static int __devinit xonar_probe(struct pci_dev *pci,