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raspberrypi-kernel
提交 c9946b2c 编写于 作者: C Clemens Ladisch 提交者： Jaroslav Kysela
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[ALSA] oxygen: remove magic numbers 

Replace some magic numbers with register symbols.
Signed-off-by: NClemens Ladisch <clemens@ladisch.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>
上级 48a8a26d
隐藏空白更改
内联 并排
Showing with 89 addition and 25 deletion
sound/pci/oxygen/oxygen_lib.c
浏览文件 @ c9946b2c
......@@ -208,21 +208,45 @@ static void __devinit oxygen_init(struct oxygen *chip)
oxygen_set_bits8(chip, OXYGEN_FUNCTION,
OXYGEN_FUNCTION_RESET_CODEC |
chip->model->function_flags);
oxygen_write16(chip, OXYGEN_I2S_MULTICH_FORMAT, 0x010a);
oxygen_write16(chip, OXYGEN_I2S_A_FORMAT, 0x010a);
oxygen_write16(chip, OXYGEN_I2S_B_FORMAT, 0x010a);
oxygen_write16(chip, OXYGEN_I2S_C_FORMAT, 0x010a);
oxygen_write16(chip, OXYGEN_I2S_MULTICH_FORMAT,
OXYGEN_RATE_48000 | OXYGEN_I2S_FORMAT_LJUST |
OXYGEN_I2S_MCLK_128 | OXYGEN_I2S_BITS_16 |
OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64);
oxygen_write16(chip, OXYGEN_I2S_A_FORMAT,
OXYGEN_RATE_48000 | OXYGEN_I2S_FORMAT_LJUST |
OXYGEN_I2S_MCLK_128 | OXYGEN_I2S_BITS_16 |
OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64);
oxygen_write16(chip, OXYGEN_I2S_B_FORMAT,
OXYGEN_RATE_48000 | OXYGEN_I2S_FORMAT_LJUST |
OXYGEN_I2S_MCLK_128 | OXYGEN_I2S_BITS_16 |
OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64);
oxygen_write16(chip, OXYGEN_I2S_C_FORMAT,
OXYGEN_RATE_48000 | OXYGEN_I2S_FORMAT_LJUST |
OXYGEN_I2S_MCLK_128 | OXYGEN_I2S_BITS_16 |
OXYGEN_I2S_MASTER | OXYGEN_I2S_BCLK_64);
oxygen_set_bits32(chip, OXYGEN_SPDIF_CONTROL, OXYGEN_SPDIF_RATE_MASK);
oxygen_write32(chip, OXYGEN_SPDIF_OUTPUT_BITS, chip->spdif_bits);
oxygen_write16(chip, OXYGEN_PLAY_ROUTING, 0xe400);
oxygen_write8(chip, OXYGEN_REC_ROUTING, 0x10);
oxygen_write8(chip, OXYGEN_ADC_MONITOR, 0x00);
oxygen_write8(chip, OXYGEN_A_MONITOR_ROUTING, 0xe4);
oxygen_write16(chip, OXYGEN_PLAY_ROUTING,
OXYGEN_PLAY_MULTICH_I2S_DAC | OXYGEN_PLAY_SPDIF_SPDIF |
(0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
(1 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
(2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
(3 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT));
oxygen_write8(chip, OXYGEN_REC_ROUTING,
OXYGEN_REC_A_ROUTE_I2S_ADC_1 |
OXYGEN_REC_B_ROUTE_AC97_1 |
OXYGEN_REC_C_ROUTE_SPDIF);
oxygen_write8(chip, OXYGEN_ADC_MONITOR, 0);
oxygen_write8(chip, OXYGEN_A_MONITOR_ROUTING,
(0 << OXYGEN_A_MONITOR_ROUTE_0_SHIFT) |
(1 << OXYGEN_A_MONITOR_ROUTE_1_SHIFT) |
(2 << OXYGEN_A_MONITOR_ROUTE_2_SHIFT) |
(3 << OXYGEN_A_MONITOR_ROUTE_3_SHIFT));
oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0);
oxygen_write16(chip, OXYGEN_DMA_STATUS, 0);
oxygen_write8(chip, OXYGEN_AC97_INTERRUPT_MASK, 0x00);
oxygen_write8(chip, OXYGEN_AC97_INTERRUPT_MASK, 0);
if (chip->has_ac97_0) {
oxygen_clear_bits16(chip, OXYGEN_AC97_OUT_CONFIG,
OXYGEN_AC97_CODEC0_FRONTL |
......
sound/pci/oxygen/oxygen_mixer.c
浏览文件 @ c9946b2c
......@@ -120,10 +120,23 @@ static int upmix_get(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
void oxygen_update_dac_routing(struct oxygen *chip)
{
/* DAC 0: front, DAC 1: surround, DAC 2: center/LFE, DAC 3: back */
static const unsigned int reg_values[3] = {
0xe400, /* front <- 0, surround <- 1, center <- 2, back <- 3 */
0xe000, /* front <- 0, surround <- 0, center <- 2, back <- 3 */
0x2000 /* front <- 0, surround <- 0, center <- 2, back <- 0 */
/* stereo -> front */
(0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
(1 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
(2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
(3 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT),
/* stereo -> front+surround */
(0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
(0 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
(2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
(3 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT),
/* stereo -> front+surround+back */
(0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
(0 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
(2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
(0 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT),
};
u8 channels;
unsigned int reg_value;
......@@ -133,10 +146,21 @@ void oxygen_update_dac_routing(struct oxygen *chip)
if (channels == OXYGEN_PLAY_CHANNELS_2)
reg_value = reg_values[chip->dac_routing];
else if (channels == OXYGEN_PLAY_CHANNELS_8)
reg_value = 0x6c00; /* surround <- 3, back <- 1 */
/* in 7.1 mode, "rear" channels go to the "back" jack */
reg_value = (0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
(3 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
(2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
(1 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT);
else
reg_value = 0xe400;
oxygen_write16_masked(chip, OXYGEN_PLAY_ROUTING, reg_value, 0xff00);
reg_value = (0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
(1 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
(2 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
(3 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT);
oxygen_write16_masked(chip, OXYGEN_PLAY_ROUTING, reg_value,
OXYGEN_PLAY_DAC0_SOURCE_MASK |
OXYGEN_PLAY_DAC1_SOURCE_MASK |
OXYGEN_PLAY_DAC2_SOURCE_MASK |
OXYGEN_PLAY_DAC3_SOURCE_MASK);
}
static int upmix_put(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
......@@ -199,13 +223,15 @@ void oxygen_update_spdif_source(struct oxygen *chip)
old_routing = oxygen_read16(chip, OXYGEN_PLAY_ROUTING);
if (chip->pcm_active & (1 << PCM_SPDIF)) {
new_control = old_control | OXYGEN_SPDIF_OUT_ENABLE;
new_routing = (old_routing & ~0x00e0) | 0x0000;
new_routing = (old_routing & ~OXYGEN_PLAY_SPDIF_MASK)
| OXYGEN_PLAY_SPDIF_SPDIF;
oxygen_rate = (old_control >> OXYGEN_SPDIF_OUT_RATE_SHIFT)
& OXYGEN_I2S_RATE_MASK;
/* S/PDIF rate was already set by the caller */
} else if ((chip->pcm_active & (1 << PCM_MULTICH)) &&
chip->spdif_playback_enable) {
new_routing = (old_routing & ~0x00e0) | 0x0020;
new_routing = (old_routing & ~OXYGEN_PLAY_SPDIF_MASK)
| OXYGEN_PLAY_SPDIF_MULTICH_01;
oxygen_rate = oxygen_read16(chip, OXYGEN_I2S_MULTICH_FORMAT)
& OXYGEN_I2S_RATE_MASK;
new_control = (old_control & ~OXYGEN_SPDIF_OUT_RATE_MASK) |
......
sound/pci/oxygen/oxygen_pcm.c
浏览文件 @ c9946b2c
......@@ -396,7 +396,9 @@ static int oxygen_rec_a_hw_params(struct snd_pcm_substream *substream,
OXYGEN_I2S_FORMAT_MASK |
OXYGEN_I2S_MCLK_MASK |
OXYGEN_I2S_BITS_MASK);
oxygen_clear_bits8(chip, OXYGEN_REC_ROUTING, 0x08);
oxygen_write8_masked(chip, OXYGEN_REC_ROUTING,
OXYGEN_REC_A_ROUTE_I2S_ADC_1,
OXYGEN_REC_A_ROUTE_MASK);
spin_unlock_irq(&chip->reg_lock);
mutex_lock(&chip->mutex);
......@@ -428,7 +430,9 @@ static int oxygen_rec_b_hw_params(struct snd_pcm_substream *substream,
OXYGEN_I2S_FORMAT_MASK |
OXYGEN_I2S_MCLK_MASK |
OXYGEN_I2S_BITS_MASK);
oxygen_clear_bits8(chip, OXYGEN_REC_ROUTING, 0x10);
oxygen_write8_masked(chip, OXYGEN_REC_ROUTING,
OXYGEN_REC_B_ROUTE_I2S_ADC_2,
OXYGEN_REC_B_ROUTE_MASK);
spin_unlock_irq(&chip->reg_lock);
mutex_lock(&chip->mutex);
......@@ -451,7 +455,9 @@ static int oxygen_rec_c_hw_params(struct snd_pcm_substream *substream,
oxygen_write8_masked(chip, OXYGEN_REC_FORMAT,
oxygen_format(hw_params) << OXYGEN_REC_FORMAT_C_SHIFT,
OXYGEN_REC_FORMAT_C_MASK);
oxygen_clear_bits8(chip, OXYGEN_REC_ROUTING, 0x20);
oxygen_write8_masked(chip, OXYGEN_REC_ROUTING,
OXYGEN_REC_C_ROUTE_SPDIF,
OXYGEN_REC_C_ROUTE_MASK);
spin_unlock_irq(&chip->reg_lock);
return 0;
}
......@@ -504,7 +510,11 @@ static int oxygen_multich_hw_params(struct snd_pcm_substream *substream,
OXYGEN_I2S_RATE_MASK |
OXYGEN_I2S_FORMAT_MASK |
OXYGEN_I2S_BITS_MASK);
oxygen_clear_bits16(chip, OXYGEN_PLAY_ROUTING, 0x001f);
oxygen_write16_masked(chip, OXYGEN_PLAY_ROUTING,
OXYGEN_PLAY_MULTICH_I2S_DAC,
OXYGEN_PLAY_MUTE01 | OXYGEN_PLAY_MUTE23 |
OXYGEN_PLAY_MUTE45 | OXYGEN_PLAY_MUTE67 |
OXYGEN_PLAY_MULTICH_MASK);
oxygen_update_dac_routing(chip);
oxygen_update_spdif_source(chip);
spin_unlock_irq(&chip->reg_lock);
......
sound/pci/oxygen/oxygen_regs.h
浏览文件 @ c9946b2c
......@@ -360,10 +360,14 @@
#define OXYGEN_ADC_MONITOR_C_HALF_VOL 0x20
#define OXYGEN_A_MONITOR_ROUTING 0xc4
#define OXYGEN_A_MONITOR_ROUTE_01_MASK 0x03
#define OXYGEN_A_MONITOR_ROUTE_23_MASK 0x0c
#define OXYGEN_A_MONITOR_ROUTE_45_MASK 0x30
#define OXYGEN_A_MONITOR_ROUTE_67_MASK 0xc0
#define OXYGEN_A_MONITOR_ROUTE_0_MASK 0x03
#define OXYGEN_A_MONITOR_ROUTE_0_SHIFT 0
#define OXYGEN_A_MONITOR_ROUTE_1_MASK 0x0c
#define OXYGEN_A_MONITOR_ROUTE_1_SHIFT 2
#define OXYGEN_A_MONITOR_ROUTE_2_MASK 0x30
#define OXYGEN_A_MONITOR_ROUTE_2_SHIFT 4
#define OXYGEN_A_MONITOR_ROUTE_3_MASK 0xc0
#define OXYGEN_A_MONITOR_ROUTE_3_SHIFT 6
#define OXYGEN_AC97_CONTROL 0xd0
#define OXYGEN_AC97_COLD_RESET 0x0001
......
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