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Diffstat (limited to 'sound/isa/cs423x/cs4231_lib.c')
-rw-r--r--sound/isa/cs423x/cs4231_lib.c115
1 files changed, 53 insertions, 62 deletions
diff --git a/sound/isa/cs423x/cs4231_lib.c b/sound/isa/cs423x/cs4231_lib.c
index 914d77b61b0c..a5eb9659b519 100644
--- a/sound/isa/cs423x/cs4231_lib.c
+++ b/sound/isa/cs423x/cs4231_lib.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ * Copyright (c) by Jaroslav Kysela <perex@perex.cz>
* Routines for control of CS4231(A)/CS4232/InterWave & compatible chips
*
* Bugs:
@@ -39,7 +39,7 @@
#include <asm/dma.h>
#include <asm/irq.h>
-MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
MODULE_DESCRIPTION("Routines for control of CS4231(A)/CS4232/InterWave & compatible chips");
MODULE_LICENSE("GPL");
@@ -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");
@@ -323,12 +313,11 @@ void snd_cs4231_mce_up(struct snd_cs4231 *chip)
void snd_cs4231_mce_down(struct snd_cs4231 *chip)
{
unsigned long flags;
+ unsigned long end_time;
int timeout;
snd_cs4231_busy_wait(chip);
-#if 0
- printk("(1) timeout = %i\n", timeout);
-#endif
+
#ifdef CONFIG_SND_DEBUG
if (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT)
snd_printk("mce_down [0x%lx] - auto calibration time out (0)\n", (long)CS4231P(REGSEL));
@@ -346,42 +335,42 @@ void snd_cs4231_mce_down(struct snd_cs4231 *chip)
}
snd_cs4231_busy_wait(chip);
- /* calibration process */
+ /*
+ * Wait for (possible -- during init auto-calibration may not be set)
+ * calibration process to start. Needs upto 5 sample periods on AD1848
+ * which at the slowest possible rate of 5.5125 kHz means 907 us.
+ */
+ msleep(1);
- for (timeout = 500; timeout > 0 && (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0; timeout--)
- udelay(10);
- if ((snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) == 0) {
- snd_printd("cs4231_mce_down - auto calibration time out (1)\n");
- return;
- }
-#if 0
- printk("(2) timeout = %i, jiffies = %li\n", timeout, jiffies);
-#endif
- /* in 10 ms increments, check condition, up to 250 ms */
- timeout = 25;
- while (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) {
- if (--timeout < 0) {
- snd_printk("mce_down - auto calibration time out (2)\n");
+ snd_printdd("(1) jiffies = %lu\n", jiffies);
+
+ /* check condition up to 250 ms */
+ end_time = jiffies + msecs_to_jiffies(250);
+ while (snd_cs4231_in(chip, CS4231_TEST_INIT) &
+ CS4231_CALIB_IN_PROGRESS) {
+
+ if (time_after(jiffies, end_time)) {
+ snd_printk(KERN_ERR "mce_down - "
+ "auto calibration time out (2)\n");
return;
}
- msleep(10);
+ msleep(1);
}
-#if 0
- printk("(3) jiffies = %li\n", jiffies);
-#endif
- /* in 10 ms increments, check condition, up to 100 ms */
- timeout = 10;
+
+ snd_printdd("(2) jiffies = %lu\n", jiffies);
+
+ /* check condition up to 100 ms */
+ end_time = jiffies + msecs_to_jiffies(100);
while (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) {
- if (--timeout < 0) {
+ if (time_after(jiffies, end_time)) {
snd_printk(KERN_ERR "mce_down - auto calibration time out (3)\n");
return;
}
- msleep(10);
+ msleep(1);
}
-#if 0
- printk("(4) jiffies = %li\n", jiffies);
- snd_printk("mce_down - exit = 0x%x\n", cs4231_inb(chip, CS4231P(REGSEL)));
-#endif
+
+ snd_printdd("(3) jiffies = %lu\n", jiffies);
+ snd_printd("mce_down - exit = 0x%x\n", cs4231_inb(chip, CS4231P(REGSEL)));
}
static unsigned int snd_cs4231_get_count(unsigned char format, unsigned int size)
@@ -459,11 +448,11 @@ 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,
@@ -555,6 +544,8 @@ static void snd_cs4231_playback_format(struct snd_cs4231 *chip,
snd_cs4231_out(chip, CS4231_PLAYBK_FORMAT, chip->image[CS4231_PLAYBK_FORMAT] = pdfr);
}
spin_unlock_irqrestore(&chip->reg_lock, flags);
+ if (chip->hardware == CS4231_HW_OPL3SA2)
+ udelay(100); /* this seems to help */
snd_cs4231_mce_down(chip);
}
snd_cs4231_calibrate_mute(chip, 0);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 18:04:22 +0100