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sound: oxygen: cache codec registers

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Keep a cache of codec registers to avoid unnecessary writes.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Clemens Ladisch
2009-09-28 11:18:45 +02:00
committed by Takashi Iwai
parent dc0adf48da
commit 6f0de3ce06
4 changed files with 258 additions and 160 deletions
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113
sound/pci/oxygen/xonar_pcm179x.c
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@@ -166,11 +166,13 @@
#define I2C_DEVICE_PCM1796(i) (0x98 + ((i) << 1)) /* 10011, ii, /W=0 */
#define I2C_DEVICE_CS2000 0x9c /* 100111, 0, /W=0 */
#define PCM1796_REG_BASE 16
struct xonar_pcm179x {
struct xonar_generic generic;
unsigned int dacs;
u8 oversampling;
u8 pcm1796_regs[4][5];
u8 cs2000_fun_cfg_1;
};
@@ -204,54 +206,71 @@ static inline void pcm1796_write_i2c(struct oxygen *chip, unsigned int codec,
static void pcm1796_write(struct oxygen *chip, unsigned int codec,
u8 reg, u8 value)
{
struct xonar_pcm179x *data = chip->model_data;
if ((chip->model.function_flags & OXYGEN_FUNCTION_2WIRE_SPI_MASK) ==
OXYGEN_FUNCTION_SPI)
pcm1796_write_spi(chip, codec, reg, value);
else
pcm1796_write_i2c(chip, codec, reg, value);
if ((unsigned int)(reg - PCM1796_REG_BASE)
< ARRAY_SIZE(data->pcm1796_regs[codec]))
data->pcm1796_regs[codec][reg - PCM1796_REG_BASE] = value;
}
static void pcm1796_write_cached(struct oxygen *chip, unsigned int codec,
u8 reg, u8 value)
{
struct xonar_pcm179x *data = chip->model_data;
if (value != data->pcm1796_regs[codec][reg - PCM1796_REG_BASE])
pcm1796_write(chip, codec, reg, value);
}
static void cs2000_write(struct oxygen *chip, u8 reg, u8 value)
{
struct xonar_pcm179x *data = chip->model_data;
oxygen_write_i2c(chip, I2C_DEVICE_CS2000, reg, value);
if (reg == CS2000_FUN_CFG_1)
data->cs2000_fun_cfg_1 = value;
}
static void update_pcm1796_volume(struct oxygen *chip)
static void cs2000_write_cached(struct oxygen *chip, u8 reg, u8 value)
{
struct xonar_pcm179x *data = chip->model_data;
if (reg != CS2000_FUN_CFG_1 ||
value != data->cs2000_fun_cfg_1)
cs2000_write(chip, reg, value);
}
static void pcm1796_registers_init(struct oxygen *chip)
{
struct xonar_pcm179x *data = chip->model_data;
unsigned int i;
for (i = 0; i < data->dacs; ++i) {
/* set ATLD before ATL/ATR */
pcm1796_write(chip, i, 18,
data->pcm1796_regs[0][18 - PCM1796_REG_BASE]);
pcm1796_write(chip, i, 16, chip->dac_volume[i * 2]);
pcm1796_write(chip, i, 17, chip->dac_volume[i * 2 + 1]);
pcm1796_write(chip, i, 19, PCM1796_FLT_SHARP | PCM1796_ATS_1);
pcm1796_write(chip, i, 20,
data->pcm1796_regs[0][20 - PCM1796_REG_BASE]);
pcm1796_write(chip, i, 21, 0);
}
}
static void update_pcm1796_mute(struct oxygen *chip)
{
struct xonar_pcm179x *data = chip->model_data;
unsigned int i;
u8 value;
value = PCM1796_DMF_DISABLED | PCM1796_FMT_24_LJUST | PCM1796_ATLD;
if (chip->dac_mute)
value |= PCM1796_MUTE;
for (i = 0; i < data->dacs; ++i)
pcm1796_write(chip, i, 18, value);
}
static void pcm1796_init(struct oxygen *chip)
{
struct xonar_pcm179x *data = chip->model_data;
unsigned int i;
for (i = 0; i < data->dacs; ++i) {
pcm1796_write(chip, i, 19, PCM1796_FLT_SHARP | PCM1796_ATS_1);
pcm1796_write(chip, i, 20, data->oversampling);
pcm1796_write(chip, i, 21, 0);
}
update_pcm1796_mute(chip); /* set ATLD before ATL/ATR */
update_pcm1796_volume(chip);
data->pcm1796_regs[0][18 - PCM1796_REG_BASE] = PCM1796_MUTE |
PCM1796_DMF_DISABLED | PCM1796_FMT_24_LJUST | PCM1796_ATLD;
data->pcm1796_regs[0][20 - PCM1796_REG_BASE] = PCM1796_OS_64;
pcm1796_registers_init(chip);
}
static void xonar_d2_init(struct oxygen *chip)
@@ -261,7 +280,6 @@ static void xonar_d2_init(struct oxygen *chip)
data->generic.anti_pop_delay = 300;
data->generic.output_enable_bit = GPIO_D2_OUTPUT_ENABLE;
data->dacs = 4;
data->oversampling = PCM1796_OS_64;
pcm1796_init(chip);
@@ -304,7 +322,6 @@ static void xonar_hdav_init(struct oxygen *chip)
data->pcm179x.generic.ext_power_int_reg = OXYGEN_GPI_INTERRUPT_MASK;
data->pcm179x.generic.ext_power_bit = GPI_EXT_POWER;
data->pcm179x.dacs = chip->model.private_data ? 4 : 1;
data->pcm179x.oversampling = PCM1796_OS_64;
pcm1796_init(chip);
@@ -335,7 +352,6 @@ static void xonar_st_init_common(struct oxygen *chip)
data->generic.anti_pop_delay = 100;
data->generic.output_enable_bit = GPIO_ST_OUTPUT_ENABLE;
data->dacs = chip->model.private_data ? 4 : 1;
data->oversampling = PCM1796_OS_64;
pcm1796_init(chip);
@@ -438,7 +454,7 @@ static void xonar_st_suspend(struct oxygen *chip)
static void xonar_d2_resume(struct oxygen *chip)
{
pcm1796_init(chip);
pcm1796_registers_init(chip);
xonar_enable_output(chip);
}
@@ -446,14 +462,14 @@ static void xonar_hdav_resume(struct oxygen *chip)
{
struct xonar_hdav *data = chip->model_data;
pcm1796_init(chip);
pcm1796_registers_init(chip);
xonar_hdmi_resume(chip, &data->hdmi);
xonar_enable_output(chip);
}
static void xonar_stx_resume(struct oxygen *chip)
{
pcm1796_init(chip);
pcm1796_registers_init(chip);
xonar_enable_output(chip);
}
@@ -468,11 +484,35 @@ static void set_pcm1796_params(struct oxygen *chip,
{
struct xonar_pcm179x *data = chip->model_data;
unsigned int i;
u8 reg;
data->oversampling =
params_rate(params) >= 96000 ? PCM1796_OS_32 : PCM1796_OS_64;
reg = params_rate(params) >= 96000 ? PCM1796_OS_32 : PCM1796_OS_64;
for (i = 0; i < data->dacs; ++i)
pcm1796_write(chip, i, 20, data->oversampling);
pcm1796_write_cached(chip, i, 20, reg);
}
static void update_pcm1796_volume(struct oxygen *chip)
{
struct xonar_pcm179x *data = chip->model_data;
unsigned int i;
for (i = 0; i < data->dacs; ++i) {
pcm1796_write_cached(chip, i, 16, chip->dac_volume[i * 2]);
pcm1796_write_cached(chip, i, 17, chip->dac_volume[i * 2 + 1]);
}
}
static void update_pcm1796_mute(struct oxygen *chip)
{
struct xonar_pcm179x *data = chip->model_data;
unsigned int i;
u8 value;
value = PCM1796_DMF_DISABLED | PCM1796_FMT_24_LJUST | PCM1796_ATLD;
if (chip->dac_mute)
value |= PCM1796_MUTE;
for (i = 0; i < data->dacs; ++i)
pcm1796_write_cached(chip, i, 18, value);
}
static void set_cs2000_params(struct oxygen *chip,
@@ -489,9 +529,8 @@ static void set_cs2000_params(struct oxygen *chip,
[OXYGEN_RATE_176400] = OXYGEN_RATE_44100 | OXYGEN_I2S_MCLK_256,
[OXYGEN_RATE_192000] = OXYGEN_RATE_48000 | OXYGEN_I2S_MCLK_256,
};
struct xonar_pcm179x *data = chip->model_data;
unsigned int rate_index;
u8 rate_mclk;
u8 rate_mclk, reg;
rate_index = oxygen_read16(chip, OXYGEN_I2S_MULTICH_FORMAT)
& OXYGEN_I2S_RATE_MASK;
@@ -499,10 +538,10 @@ static void set_cs2000_params(struct oxygen *chip,
oxygen_write16_masked(chip, OXYGEN_I2S_A_FORMAT, rate_mclk,
OXYGEN_I2S_RATE_MASK | OXYGEN_I2S_MCLK_MASK);
if ((rate_mclk & OXYGEN_I2S_MCLK_MASK) <= OXYGEN_I2S_MCLK_128)
data->cs2000_fun_cfg_1 = CS2000_REF_CLK_DIV_1;
reg = CS2000_REF_CLK_DIV_1;
else
data->cs2000_fun_cfg_1 = CS2000_REF_CLK_DIV_2;
cs2000_write(chip, CS2000_FUN_CFG_1, data->cs2000_fun_cfg_1);
reg = CS2000_REF_CLK_DIV_2;
cs2000_write_cached(chip, CS2000_FUN_CFG_1, reg);
}
static void set_st_params(struct oxygen *chip,