diff options
| author | Krzysztof Helt <krzysztof.h1@wp.pl> | 2007-09-06 15:03:59 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2007-10-16 16:49:10 +0200 |
| commit | 6c041b5eae5a3e5c950c1d99f59d907c680922d2 (patch) | |
| tree | efcea2e397a3c2807f15042d9227d61d46335074 /sound/isa/cs423x | |
| parent | 8e6a2c2ec9e7c99128425e6b73bea8437efd3a93 (diff) | |
[ALSA] cs4231-lib: replace common delay loop by function
This patch replaces a common delay loop by a function.
It also uses ARRAY_SIZE macro for the rates table.
Acked-by: Rene Herman <rene.herman@gmail.com>
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound/isa/cs423x')
| -rw-r--r-- | sound/isa/cs423x/cs4231_lib.c | 50 |
1 files changed, 20 insertions, 30 deletions
diff --git a/sound/isa/cs423x/cs4231_lib.c b/sound/isa/cs423x/cs4231_lib.c index 642bdaa703b..db9bba130b2 100644 --- a/sound/isa/cs423x/cs4231_lib.c +++ b/sound/isa/cs423x/cs4231_lib.c @@ -74,7 +74,7 @@ static unsigned int rates[14] = { }; static struct snd_pcm_hw_constraint_list hw_constraints_rates = { - .count = 14, + .count = ARRAY_SIZE(rates), .list = rates, .mask = 0, }; @@ -134,29 +134,31 @@ static inline u8 cs4231_inb(struct snd_cs4231 *chip, u8 offset) return inb(chip->port + offset); } -static void snd_cs4231_outm(struct snd_cs4231 *chip, unsigned char reg, - unsigned char mask, unsigned char value) +static void snd_cs4231_wait(struct snd_cs4231 *chip) { int timeout; - unsigned char tmp; for (timeout = 250; timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); timeout--) udelay(100); +} + +static void snd_cs4231_outm(struct snd_cs4231 *chip, unsigned char reg, + unsigned char mask, unsigned char value) +{ + unsigned char tmp = (chip->image[reg] & mask) | value; + + snd_cs4231_wait(chip); #ifdef CONFIG_SND_DEBUG if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) snd_printk("outm: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value); #endif - if (chip->calibrate_mute) { - chip->image[reg] &= mask; - chip->image[reg] |= value; - } else { + chip->image[reg] = tmp; + if (!chip->calibrate_mute) { cs4231_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg); - mb(); - tmp = (chip->image[reg] & mask) | value; + wmb(); cs4231_outb(chip, CS4231P(REG), tmp); - chip->image[reg] = tmp; mb(); } } @@ -176,12 +178,7 @@ static void snd_cs4231_dout(struct snd_cs4231 *chip, unsigned char reg, unsigned void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char value) { - int timeout; - - for (timeout = 250; - timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); - timeout--) - udelay(100); + snd_cs4231_wait(chip); #ifdef CONFIG_SND_DEBUG if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) snd_printk("out: auto calibration time out - reg = 0x%x, value = 0x%x\n", reg, value); @@ -190,19 +187,13 @@ void snd_cs4231_out(struct snd_cs4231 *chip, unsigned char reg, unsigned char va cs4231_outb(chip, CS4231P(REG), value); chip->image[reg] = value; mb(); -#if 0 - printk("codec out - reg 0x%x = 0x%x\n", chip->mce_bit | reg, value); -#endif + snd_printdd("codec out - reg 0x%x = 0x%x\n", + chip->mce_bit | reg, value); } unsigned char snd_cs4231_in(struct snd_cs4231 *chip, unsigned char reg) { - int timeout; - - for (timeout = 250; - timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); - timeout--) - udelay(100); + snd_cs4231_wait(chip); #ifdef CONFIG_SND_DEBUG if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) snd_printk("in: auto calibration time out - reg = 0x%x\n", reg); @@ -304,8 +295,7 @@ void snd_cs4231_mce_up(struct snd_cs4231 *chip) unsigned long flags; int timeout; - for (timeout = 250; timeout > 0 && (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); timeout--) - udelay(100); + snd_cs4231_wait(chip); #ifdef CONFIG_SND_DEBUG if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) snd_printk("mce_up - auto calibration time out (0)\n"); @@ -459,11 +449,11 @@ static unsigned char snd_cs4231_get_rate(unsigned int rate) { int i; - for (i = 0; i < 14; i++) + for (i = 0; i < ARRAY_SIZE(rates); i++) if (rate == rates[i]) return freq_bits[i]; // snd_BUG(); - return freq_bits[13]; + return freq_bits[ARRAY_SIZE(rates) - 1]; } static unsigned char snd_cs4231_get_format(struct snd_cs4231 *chip, |