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[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>
This commit is contained in:
Krzysztof Helt 2007-09-06 15:03:59 +02:00 committed by Jaroslav Kysela
parent 8e6a2c2ec9
commit 6c041b5eae
1 changed files with 20 additions and 30 deletions
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50
sound/isa/cs423x/cs4231_lib.c
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@ -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,