Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8e6a2c2ec9e7c99128425e6b73bea8437efd3a93
Commit: 8e6a2c2ec9e7c99128425e6b73bea8437efd3a93
Parent: ef285fe6ef3620fbac5d7fc4c0560e276adb0fc2
Author: Krzysztof Helt <[EMAIL PROTECTED]>
AuthorDate: Thu Sep 6 15:03:22 2007 +0200
Committer: Jaroslav Kysela <[EMAIL PROTECTED]>
CommitDate: Tue Oct 16 16:49:09 2007 +0200
[ALSA] ad1848_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 <[EMAIL PROTECTED]>
Signed-off-by: Krzysztof Helt <[EMAIL PROTECTED]>
Signed-off-by: Takashi Iwai <[EMAIL PROTECTED]>
Signed-off-by: Jaroslav Kysela <[EMAIL PROTECTED]>
---
sound/isa/ad1848/ad1848_lib.c | 46 +++++++++++++++++++++-------------------
1 files changed, 24 insertions(+), 22 deletions(-)
diff --git a/sound/isa/ad1848/ad1848_lib.c b/sound/isa/ad1848/ad1848_lib.c
index 1bc2e3f..f01e564 100644
--- a/sound/isa/ad1848/ad1848_lib.c
+++ b/sound/isa/ad1848/ad1848_lib.c
@@ -70,7 +70,7 @@ 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,
};
@@ -99,24 +99,32 @@ static unsigned char snd_ad1848_original_image[16] =
* Basic I/O functions
*/
-void snd_ad1848_out(struct snd_ad1848 *chip,
- unsigned char reg,
- unsigned char value)
+static void snd_ad1848_wait(struct snd_ad1848 *chip)
{
int timeout;
- for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) &
AD1848_INIT); timeout--)
+ for (timeout = 250; timeout > 0; timeout--) {
+ if ((inb(AD1848P(chip, REGSEL)) & AD1848_INIT) == 0)
+ break;
udelay(100);
+ }
+}
+
+void snd_ad1848_out(struct snd_ad1848 *chip,
+ unsigned char reg,
+ unsigned char value)
+{
+ snd_ad1848_wait(chip);
#ifdef CONFIG_SND_DEBUG
if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
- snd_printk(KERN_WARNING "auto calibration time out - reg =
0x%x, value = 0x%x\n", reg, value);
+ snd_printk(KERN_WARNING "auto calibration time out - "
+ "reg = 0x%x, value = 0x%x\n", reg, value);
#endif
outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
outb(chip->image[reg] = value, AD1848P(chip, REG));
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);
}
EXPORT_SYMBOL(snd_ad1848_out);
@@ -124,10 +132,7 @@ EXPORT_SYMBOL(snd_ad1848_out);
static void snd_ad1848_dout(struct snd_ad1848 *chip,
unsigned char reg, unsigned char value)
{
- int timeout;
-
- for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) &
AD1848_INIT); timeout--)
- udelay(100);
+ snd_ad1848_wait(chip);
outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
outb(value, AD1848P(chip, REG));
mb();
@@ -135,13 +140,11 @@ static void snd_ad1848_dout(struct snd_ad1848 *chip,
static unsigned char snd_ad1848_in(struct snd_ad1848 *chip, unsigned char reg)
{
- int timeout;
-
- for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) &
AD1848_INIT); timeout--)
- udelay(100);
+ snd_ad1848_wait(chip);
#ifdef CONFIG_SND_DEBUG
if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
- snd_printk(KERN_WARNING "auto calibration time out - reg =
0x%x\n", reg);
+ snd_printk(KERN_WARNING "auto calibration time out - "
+ "reg = 0x%x\n", reg);
#endif
outb(chip->mce_bit | reg, AD1848P(chip, REGSEL));
mb();
@@ -183,8 +186,7 @@ static void snd_ad1848_mce_up(struct snd_ad1848 *chip)
unsigned long flags;
int timeout;
- for (timeout = 250; timeout > 0 && (inb(AD1848P(chip, REGSEL)) &
AD1848_INIT); timeout--)
- udelay(100);
+ snd_ad1848_wait(chip);
#ifdef CONFIG_SND_DEBUG
if (inb(AD1848P(chip, REGSEL)) & AD1848_INIT)
snd_printk(KERN_WARNING "mce_up - auto calibration time out
(0)\n");
@@ -319,11 +321,11 @@ static unsigned char snd_ad1848_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 int snd_ad1848_ioctl(struct snd_pcm_substream *substream,
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
