summaryrefslogtreecommitdiff
path: root/sound/i2c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/i2c')
-rw-r--r--sound/i2c/other/ak4113.c36
-rw-r--r--sound/i2c/other/ak4114.c46
2 files changed, 58 insertions, 24 deletions
diff --git a/sound/i2c/other/ak4113.c b/sound/i2c/other/ak4113.c
index 1a3a6fa27158..88844881cbff 100644
--- a/sound/i2c/other/ak4113.c
+++ b/sound/i2c/other/ak4113.c
@@ -56,8 +56,7 @@ static inline unsigned char reg_read(struct ak4113 *ak4113, unsigned char reg)
static void snd_ak4113_free(struct ak4113 *chip)
{
- chip->init = 1; /* don't schedule new work */
- mb();
+ atomic_inc(&chip->wq_processing); /* don't schedule new work */
cancel_delayed_work_sync(&chip->work);
kfree(chip);
}
@@ -89,6 +88,8 @@ int snd_ak4113_create(struct snd_card *card, ak4113_read_t *read,
chip->write = write;
chip->private_data = private_data;
INIT_DELAYED_WORK(&chip->work, ak4113_stats);
+ atomic_set(&chip->wq_processing, 0);
+ mutex_init(&chip->reinit_mutex);
for (reg = 0; reg < AK4113_WRITABLE_REGS ; reg++)
chip->regmap[reg] = pgm[reg];
@@ -139,13 +140,13 @@ static void ak4113_init_regs(struct ak4113 *chip)
void snd_ak4113_reinit(struct ak4113 *chip)
{
- chip->init = 1;
- mb();
- flush_delayed_work(&chip->work);
+ if (atomic_inc_return(&chip->wq_processing) == 1)
+ cancel_delayed_work_sync(&chip->work);
+ mutex_lock(&chip->reinit_mutex);
ak4113_init_regs(chip);
+ mutex_unlock(&chip->reinit_mutex);
/* bring up statistics / event queing */
- chip->init = 0;
- if (chip->kctls[0])
+ if (atomic_dec_and_test(&chip->wq_processing))
schedule_delayed_work(&chip->work, HZ / 10);
}
EXPORT_SYMBOL_GPL(snd_ak4113_reinit);
@@ -632,8 +633,25 @@ static void ak4113_stats(struct work_struct *work)
{
struct ak4113 *chip = container_of(work, struct ak4113, work.work);
- if (!chip->init)
+ if (atomic_inc_return(&chip->wq_processing) == 1)
snd_ak4113_check_rate_and_errors(chip, chip->check_flags);
- schedule_delayed_work(&chip->work, HZ / 10);
+ if (atomic_dec_and_test(&chip->wq_processing))
+ schedule_delayed_work(&chip->work, HZ / 10);
+}
+
+#ifdef CONFIG_PM
+void snd_ak4113_suspend(struct ak4113 *chip)
+{
+ atomic_inc(&chip->wq_processing); /* don't schedule new work */
+ cancel_delayed_work_sync(&chip->work);
+}
+EXPORT_SYMBOL(snd_ak4113_suspend);
+
+void snd_ak4113_resume(struct ak4113 *chip)
+{
+ atomic_dec(&chip->wq_processing);
+ snd_ak4113_reinit(chip);
}
+EXPORT_SYMBOL(snd_ak4113_resume);
+#endif
diff --git a/sound/i2c/other/ak4114.c b/sound/i2c/other/ak4114.c
index c7f56339415d..5a4cf3fab4ae 100644
--- a/sound/i2c/other/ak4114.c
+++ b/sound/i2c/other/ak4114.c
@@ -66,8 +66,7 @@ static void reg_dump(struct ak4114 *ak4114)
static void snd_ak4114_free(struct ak4114 *chip)
{
- chip->init = 1; /* don't schedule new work */
- mb();
+ atomic_inc(&chip->wq_processing); /* don't schedule new work */
cancel_delayed_work_sync(&chip->work);
kfree(chip);
}
@@ -100,6 +99,8 @@ int snd_ak4114_create(struct snd_card *card,
chip->write = write;
chip->private_data = private_data;
INIT_DELAYED_WORK(&chip->work, ak4114_stats);
+ atomic_set(&chip->wq_processing, 0);
+ mutex_init(&chip->reinit_mutex);
for (reg = 0; reg < 6; reg++)
chip->regmap[reg] = pgm[reg];
@@ -122,6 +123,7 @@ int snd_ak4114_create(struct snd_card *card,
snd_ak4114_free(chip);
return err < 0 ? err : -EIO;
}
+EXPORT_SYMBOL(snd_ak4114_create);
void snd_ak4114_reg_write(struct ak4114 *chip, unsigned char reg, unsigned char mask, unsigned char val)
{
@@ -131,6 +133,7 @@ void snd_ak4114_reg_write(struct ak4114 *chip, unsigned char reg, unsigned char
reg_write(chip, reg,
(chip->txcsb[reg-AK4114_REG_TXCSB0] & ~mask) | val);
}
+EXPORT_SYMBOL(snd_ak4114_reg_write);
static void ak4114_init_regs(struct ak4114 *chip)
{
@@ -152,15 +155,16 @@ static void ak4114_init_regs(struct ak4114 *chip)
void snd_ak4114_reinit(struct ak4114 *chip)
{
- chip->init = 1;
- mb();
- flush_delayed_work(&chip->work);
+ if (atomic_inc_return(&chip->wq_processing) == 1)
+ cancel_delayed_work_sync(&chip->work);
+ mutex_lock(&chip->reinit_mutex);
ak4114_init_regs(chip);
+ mutex_unlock(&chip->reinit_mutex);
/* bring up statistics / event queing */
- chip->init = 0;
- if (chip->kctls[0])
+ if (atomic_dec_and_test(&chip->wq_processing))
schedule_delayed_work(&chip->work, HZ / 10);
}
+EXPORT_SYMBOL(snd_ak4114_reinit);
static unsigned int external_rate(unsigned char rcs1)
{
@@ -505,6 +509,7 @@ int snd_ak4114_build(struct ak4114 *ak4114,
schedule_delayed_work(&ak4114->work, HZ / 10);
return 0;
}
+EXPORT_SYMBOL(snd_ak4114_build);
/* notify kcontrols if any parameters are changed */
static void ak4114_notify(struct ak4114 *ak4114,
@@ -560,6 +565,7 @@ int snd_ak4114_external_rate(struct ak4114 *ak4114)
rcs1 = reg_read(ak4114, AK4114_REG_RCS1);
return external_rate(rcs1);
}
+EXPORT_SYMBOL(snd_ak4114_external_rate);
int snd_ak4114_check_rate_and_errors(struct ak4114 *ak4114, unsigned int flags)
{
@@ -607,20 +613,30 @@ int snd_ak4114_check_rate_and_errors(struct ak4114 *ak4114, unsigned int flags)
}
return res;
}
+EXPORT_SYMBOL(snd_ak4114_check_rate_and_errors);
static void ak4114_stats(struct work_struct *work)
{
struct ak4114 *chip = container_of(work, struct ak4114, work.work);
- if (!chip->init)
+ if (atomic_inc_return(&chip->wq_processing) == 1)
snd_ak4114_check_rate_and_errors(chip, chip->check_flags);
+ if (atomic_dec_and_test(&chip->wq_processing))
+ schedule_delayed_work(&chip->work, HZ / 10);
+}
- schedule_delayed_work(&chip->work, HZ / 10);
+#ifdef CONFIG_PM
+void snd_ak4114_suspend(struct ak4114 *chip)
+{
+ atomic_inc(&chip->wq_processing); /* don't schedule new work */
+ cancel_delayed_work_sync(&chip->work);
}
+EXPORT_SYMBOL(snd_ak4114_suspend);
-EXPORT_SYMBOL(snd_ak4114_create);
-EXPORT_SYMBOL(snd_ak4114_reg_write);
-EXPORT_SYMBOL(snd_ak4114_reinit);
-EXPORT_SYMBOL(snd_ak4114_build);
-EXPORT_SYMBOL(snd_ak4114_external_rate);
-EXPORT_SYMBOL(snd_ak4114_check_rate_and_errors);
+void snd_ak4114_resume(struct ak4114 *chip)
+{
+ atomic_dec(&chip->wq_processing);
+ snd_ak4114_reinit(chip);
+}
+EXPORT_SYMBOL(snd_ak4114_resume);
+#endif
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-21 21:26:42 +0300