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Diffstat (limited to 'sound/oss/swarm_cs4297a.c')
-rw-r--r--sound/oss/swarm_cs4297a.c78
1 files changed, 60 insertions, 18 deletions
diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c
index 3136c88eacd..a33e8ce8085 100644
--- a/sound/oss/swarm_cs4297a.c
+++ b/sound/oss/swarm_cs4297a.c
@@ -69,7 +69,6 @@
#include <linux/sound.h>
#include <linux/slab.h>
#include <linux/soundcard.h>
-#include <linux/ac97_codec.h>
#include <linux/pci.h>
#include <linux/bitops.h>
#include <linux/interrupt.h>
@@ -91,8 +90,11 @@
#include <asm/sibyte/sb1250_mac.h>
#include <asm/sibyte/sb1250.h>
+#include "sleep.h"
+
struct cs4297a_state;
+static DEFINE_MUTEX(swarm_cs4297a_mutex);
static void stop_dac(struct cs4297a_state *s);
static void stop_adc(struct cs4297a_state *s);
static void start_dac(struct cs4297a_state *s);
@@ -198,6 +200,22 @@ static const char invalid_magic[] =
} \
})
+/* AC97 registers */
+#define AC97_MASTER_VOL_STEREO 0x0002 /* Line Out */
+#define AC97_PCBEEP_VOL 0x000a /* none */
+#define AC97_PHONE_VOL 0x000c /* TAD Input (mono) */
+#define AC97_MIC_VOL 0x000e /* MIC Input (mono) */
+#define AC97_LINEIN_VOL 0x0010 /* Line Input (stereo) */
+#define AC97_CD_VOL 0x0012 /* CD Input (stereo) */
+#define AC97_AUX_VOL 0x0016 /* Aux Input (stereo) */
+#define AC97_PCMOUT_VOL 0x0018 /* Wave Output (stereo) */
+#define AC97_RECORD_SELECT 0x001a /* */
+#define AC97_RECORD_GAIN 0x001c
+#define AC97_GENERAL_PURPOSE 0x0020
+#define AC97_3D_CONTROL 0x0022
+#define AC97_POWER_CONTROL 0x0026
+#define AC97_VENDOR_ID1 0x007c
+
struct list_head cs4297a_devs = { &cs4297a_devs, &cs4297a_devs };
typedef struct serdma_descr_s {
@@ -732,7 +750,7 @@ static int serdma_reg_access(struct cs4297a_state *s, u64 data)
/* Since a writer has the DSP open, we have to mux the
request in */
s->reg_request = data;
- interruptible_sleep_on(&s->dma_dac.reg_wait);
+ oss_broken_sleep_on(&s->dma_dac.reg_wait, MAX_SCHEDULE_TIMEOUT);
/* XXXKW how can I deal with the starvation case where
the opener isn't writing? */
} else {
@@ -774,7 +792,7 @@ static int cs4297a_read_ac97(struct cs4297a_state *s, u32 offset,
if (serdma_reg_access(s, (0xCLL << 60) | (1LL << 47) | ((u64)(offset & 0x7F) << 40)))
return -1;
- interruptible_sleep_on(&s->dma_adc.reg_wait);
+ oss_broken_sleep_on(&s->dma_adc.reg_wait, MAX_SCHEDULE_TIMEOUT);
*value = s->read_value;
CS_DBGOUT(CS_AC97, 2,
printk(KERN_INFO "cs4297a: rdr reg %x -> %x\n", s->read_reg, s->read_value));
@@ -874,7 +892,7 @@ static void start_adc(struct cs4297a_state *s)
if (s->prop_adc.fmt & AFMT_S8 || s->prop_adc.fmt & AFMT_U8) {
//
// now only use 16 bit capture, due to truncation issue
- // in the chip, noticable distortion occurs.
+ // in the chip, noticeable distortion occurs.
// allocate buffer and then convert from 16 bit to
// 8 bit for the user buffer.
//
@@ -1534,6 +1552,7 @@ static int cs4297a_open_mixdev(struct inode *inode, struct file *file)
CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4,
printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()+\n"));
+ mutex_lock(&swarm_cs4297a_mutex);
list_for_each(entry, &cs4297a_devs)
{
s = list_entry(entry, struct cs4297a_state, list);
@@ -1544,6 +1563,8 @@ static int cs4297a_open_mixdev(struct inode *inode, struct file *file)
{
CS_DBGOUT(CS_FUNCTION | CS_OPEN | CS_ERROR, 2,
printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()- -ENODEV\n"));
+
+ mutex_unlock(&swarm_cs4297a_mutex);
return -ENODEV;
}
VALIDATE_STATE(s);
@@ -1551,6 +1572,7 @@ static int cs4297a_open_mixdev(struct inode *inode, struct file *file)
CS_DBGOUT(CS_FUNCTION | CS_OPEN, 4,
printk(KERN_INFO "cs4297a: cs4297a_open_mixdev()- 0\n"));
+ mutex_unlock(&swarm_cs4297a_mutex);
return nonseekable_open(inode, file);
}
@@ -1566,11 +1588,15 @@ static int cs4297a_release_mixdev(struct inode *inode, struct file *file)
}
-static int cs4297a_ioctl_mixdev(struct inode *inode, struct file *file,
+static int cs4297a_ioctl_mixdev(struct file *file,
unsigned int cmd, unsigned long arg)
{
- return mixer_ioctl((struct cs4297a_state *) file->private_data, cmd,
+ int ret;
+ mutex_lock(&swarm_cs4297a_mutex);
+ ret = mixer_ioctl((struct cs4297a_state *) file->private_data, cmd,
arg);
+ mutex_unlock(&swarm_cs4297a_mutex);
+ return ret;
}
@@ -1580,7 +1606,7 @@ static int cs4297a_ioctl_mixdev(struct inode *inode, struct file *file,
static const struct file_operations cs4297a_mixer_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
- .ioctl = cs4297a_ioctl_mixdev,
+ .unlocked_ioctl = cs4297a_ioctl_mixdev,
.open = cs4297a_open_mixdev,
.release = cs4297a_release_mixdev,
};
@@ -1716,7 +1742,7 @@ static ssize_t cs4297a_read(struct file *file, char *buffer, size_t count,
start_adc(s);
if (file->f_flags & O_NONBLOCK)
return ret ? ret : -EAGAIN;
- interruptible_sleep_on(&s->dma_adc.wait);
+ oss_broken_sleep_on(&s->dma_adc.wait, MAX_SCHEDULE_TIMEOUT);
if (signal_pending(current))
return ret ? ret : -ERESTARTSYS;
continue;
@@ -1812,7 +1838,7 @@ static ssize_t cs4297a_write(struct file *file, const char *buffer,
start_dac(s);
if (file->f_flags & O_NONBLOCK)
return ret ? ret : -EAGAIN;
- interruptible_sleep_on(&d->wait);
+ oss_broken_sleep_on(&d->wait, MAX_SCHEDULE_TIMEOUT);
if (signal_pending(current))
return ret ? ret : -ERESTARTSYS;
continue;
@@ -1944,7 +1970,7 @@ static int cs4297a_mmap(struct file *file, struct vm_area_struct *vma)
}
-static int cs4297a_ioctl(struct inode *inode, struct file *file,
+static int cs4297a_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
struct cs4297a_state *s =
@@ -2337,6 +2363,16 @@ static int cs4297a_ioctl(struct inode *inode, struct file *file,
return mixer_ioctl(s, cmd, arg);
}
+static long cs4297a_unlocked_ioctl(struct file *file, u_int cmd, u_long arg)
+{
+ int ret;
+
+ mutex_lock(&swarm_cs4297a_mutex);
+ ret = cs4297a_ioctl(file, cmd, arg);
+ mutex_unlock(&swarm_cs4297a_mutex);
+
+ return ret;
+}
static int cs4297a_release(struct inode *inode, struct file *file)
{
@@ -2369,7 +2405,7 @@ static int cs4297a_release(struct inode *inode, struct file *file)
return 0;
}
-static int cs4297a_open(struct inode *inode, struct file *file)
+static int cs4297a_locked_open(struct inode *inode, struct file *file)
{
int minor = iminor(inode);
struct cs4297a_state *s=NULL;
@@ -2418,7 +2454,7 @@ static int cs4297a_open(struct inode *inode, struct file *file)
return -EBUSY;
}
mutex_unlock(&s->open_sem_dac);
- interruptible_sleep_on(&s->open_wait_dac);
+ oss_broken_sleep_on(&s->open_wait_dac, MAX_SCHEDULE_TIMEOUT);
if (signal_pending(current)) {
printk("open - sig pending\n");
@@ -2435,7 +2471,7 @@ static int cs4297a_open(struct inode *inode, struct file *file)
return -EBUSY;
}
mutex_unlock(&s->open_sem_adc);
- interruptible_sleep_on(&s->open_wait_adc);
+ oss_broken_sleep_on(&s->open_wait_adc, MAX_SCHEDULE_TIMEOUT);
if (signal_pending(current)) {
printk("open - sig pending\n");
@@ -2486,6 +2522,16 @@ static int cs4297a_open(struct inode *inode, struct file *file)
return nonseekable_open(inode, file);
}
+static int cs4297a_open(struct inode *inode, struct file *file)
+{
+ int ret;
+
+ mutex_lock(&swarm_cs4297a_mutex);
+ ret = cs4297a_open(inode, file);
+ mutex_unlock(&swarm_cs4297a_mutex);
+
+ return ret;
+}
// ******************************************************************************************
// Wave (audio) file operations struct.
@@ -2496,7 +2542,7 @@ static const struct file_operations cs4297a_audio_fops = {
.read = cs4297a_read,
.write = cs4297a_write,
.poll = cs4297a_poll,
- .ioctl = cs4297a_ioctl,
+ .unlocked_ioctl = cs4297a_unlocked_ioctl,
.mmap = cs4297a_mmap,
.open = cs4297a_open,
.release = cs4297a_release,
@@ -2579,15 +2625,12 @@ static int __init cs4297a_init(void)
u32 pwr, id;
mm_segment_t fs;
int rval;
-#ifndef CONFIG_BCM_CS4297A_CSWARM
u64 cfg;
int mdio_val;
-#endif
CS_DBGOUT(CS_INIT | CS_FUNCTION, 2, printk(KERN_INFO
"cs4297a: cs4297a_init_module()+ \n"));
-#ifndef CONFIG_BCM_CS4297A_CSWARM
mdio_val = __raw_readq(KSEG1 + A_MAC_REGISTER(2, R_MAC_MDIO)) &
(M_MAC_MDIO_DIR|M_MAC_MDIO_OUT);
@@ -2613,7 +2656,6 @@ static int __init cs4297a_init(void)
__raw_writeq(mdio_val | M_MAC_GENC, KSEG1+A_MAC_REGISTER(2, R_MAC_MDIO));
/* Give the codec some time to finish resetting (start the bit clock) */
udelay(100);
-#endif
if (!(s = kzalloc(sizeof(struct cs4297a_state), GFP_KERNEL))) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 07:00:47 +0000