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Diffstat (limited to 'sound/oss/swarm_cs4297a.c')
-rw-r--r--sound/oss/swarm_cs4297a.c153
1 files changed, 96 insertions, 57 deletions
diff --git a/sound/oss/swarm_cs4297a.c b/sound/oss/swarm_cs4297a.c
index df4d3771fa8..a33e8ce8085 100644
--- a/sound/oss/swarm_cs4297a.c
+++ b/sound/oss/swarm_cs4297a.c
@@ -69,13 +69,13 @@
#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>
#include <linux/init.h>
#include <linux/poll.h>
-#include <linux/smp_lock.h>
+#include <linux/mutex.h>
+#include <linux/kernel.h>
#include <asm/byteorder.h>
#include <asm/dma.h>
@@ -90,8 +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);
@@ -109,9 +112,6 @@ static void start_adc(struct cs4297a_state *s);
// rather than 64k as some of the games work more responsively.
// log base 2( buff sz = 32k).
-//static unsigned long defaultorder = 3;
-//MODULE_PARM(defaultorder, "i");
-
//
// Turn on/off debugging compilation by commenting out "#define CSDEBUG"
//
@@ -153,8 +153,8 @@ static void start_adc(struct cs4297a_state *s);
#if CSDEBUG
static unsigned long cs_debuglevel = 4; // levels range from 1-9
static unsigned long cs_debugmask = CS_INIT /*| CS_IOCTL*/;
-MODULE_PARM(cs_debuglevel, "i");
-MODULE_PARM(cs_debugmask, "i");
+module_param(cs_debuglevel, int, 0);
+module_param(cs_debugmask, int, 0);
#endif
#define CS_TRUE 1
#define CS_FALSE 0
@@ -200,6 +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 {
@@ -291,10 +307,10 @@ struct cs4297a_state {
unsigned conversion:1; // conversion from 16 to 8 bit in progress
unsigned ena;
spinlock_t lock;
- struct semaphore open_sem;
- struct semaphore open_sem_adc;
- struct semaphore open_sem_dac;
- mode_t open_mode;
+ struct mutex open_mutex;
+ struct mutex open_sem_adc;
+ struct mutex open_sem_dac;
+ fmode_t open_mode;
wait_queue_head_t open_wait;
wait_queue_head_t open_wait_adc;
wait_queue_head_t open_wait_dac;
@@ -614,25 +630,23 @@ static int init_serdma(serdma_t *dma)
/* Descriptors */
dma->ringsz = DMA_DESCR;
- dma->descrtab = kmalloc(dma->ringsz * sizeof(serdma_descr_t), GFP_KERNEL);
+ dma->descrtab = kzalloc(dma->ringsz * sizeof(serdma_descr_t), GFP_KERNEL);
if (!dma->descrtab) {
- printk(KERN_ERR "cs4297a: kmalloc descrtab failed\n");
+ printk(KERN_ERR "cs4297a: kzalloc descrtab failed\n");
return -1;
}
- memset(dma->descrtab, 0, dma->ringsz * sizeof(serdma_descr_t));
dma->descrtab_end = dma->descrtab + dma->ringsz;
/* XXX bloddy mess, use proper DMA API here ... */
dma->descrtab_phys = CPHYSADDR((long)dma->descrtab);
dma->descr_add = dma->descr_rem = dma->descrtab;
/* Frame buffer area */
- dma->dma_buf = kmalloc(DMA_BUF_SIZE, GFP_KERNEL);
+ dma->dma_buf = kzalloc(DMA_BUF_SIZE, GFP_KERNEL);
if (!dma->dma_buf) {
- printk(KERN_ERR "cs4297a: kmalloc dma_buf failed\n");
+ printk(KERN_ERR "cs4297a: kzalloc dma_buf failed\n");
kfree(dma->descrtab);
return -1;
}
- memset(dma->dma_buf, 0, DMA_BUF_SIZE);
dma->dma_buf_phys = CPHYSADDR((long)dma->dma_buf);
/* Samples buffer area */
@@ -724,7 +738,7 @@ static int serdma_reg_access(struct cs4297a_state *s, u64 data)
serdma_t *d = &s->dma_dac;
u64 *data_p;
unsigned swptr;
- int flags;
+ unsigned long flags;
serdma_descr_t *descr;
if (s->reg_request) {
@@ -736,7 +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 {
@@ -778,7 +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));
@@ -878,7 +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.
//
@@ -1538,6 +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);
@@ -1548,6 +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);
@@ -1555,6 +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);
}
@@ -1570,21 +1588,25 @@ 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;
}
// ******************************************************************************************
// Mixer file operations struct.
// ******************************************************************************************
-static /*const */ struct file_operations cs4297a_mixer_fops = {
+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,
};
@@ -1720,7 +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;
@@ -1816,7 +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;
@@ -1948,7 +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 =
@@ -2201,7 +2223,9 @@ static int cs4297a_ioctl(struct inode *inode, struct file *file,
sizeof(abinfo)) ? -EFAULT : 0;
case SNDCTL_DSP_NONBLOCK:
+ spin_lock(&file->f_lock);
file->f_flags |= O_NONBLOCK;
+ spin_unlock(&file->f_lock);
return 0;
case SNDCTL_DSP_GETODELAY:
@@ -2339,6 +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)
{
@@ -2352,26 +2386,26 @@ static int cs4297a_release(struct inode *inode, struct file *file)
if (file->f_mode & FMODE_WRITE) {
drain_dac(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem_dac);
+ mutex_lock(&s->open_sem_dac);
stop_dac(s);
dealloc_dmabuf(s, &s->dma_dac);
s->open_mode &= ~FMODE_WRITE;
- up(&s->open_sem_dac);
+ mutex_unlock(&s->open_sem_dac);
wake_up(&s->open_wait_dac);
}
if (file->f_mode & FMODE_READ) {
drain_adc(s, file->f_flags & O_NONBLOCK);
- down(&s->open_sem_adc);
+ mutex_lock(&s->open_sem_adc);
stop_adc(s);
dealloc_dmabuf(s, &s->dma_adc);
s->open_mode &= ~FMODE_READ;
- up(&s->open_sem_adc);
+ mutex_unlock(&s->open_sem_adc);
wake_up(&s->open_wait_adc);
}
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;
@@ -2413,37 +2447,37 @@ static int cs4297a_open(struct inode *inode, struct file *file)
;
}
- down(&s->open_sem_dac);
+ mutex_lock(&s->open_sem_dac);
while (s->open_mode & FMODE_WRITE) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem_dac);
+ mutex_unlock(&s->open_sem_dac);
return -EBUSY;
}
- up(&s->open_sem_dac);
- interruptible_sleep_on(&s->open_wait_dac);
+ mutex_unlock(&s->open_sem_dac);
+ oss_broken_sleep_on(&s->open_wait_dac, MAX_SCHEDULE_TIMEOUT);
if (signal_pending(current)) {
printk("open - sig pending\n");
return -ERESTARTSYS;
}
- down(&s->open_sem_dac);
+ mutex_lock(&s->open_sem_dac);
}
}
if (file->f_mode & FMODE_READ) {
- down(&s->open_sem_adc);
+ mutex_lock(&s->open_sem_adc);
while (s->open_mode & FMODE_READ) {
if (file->f_flags & O_NONBLOCK) {
- up(&s->open_sem_adc);
+ mutex_unlock(&s->open_sem_adc);
return -EBUSY;
}
- up(&s->open_sem_adc);
- interruptible_sleep_on(&s->open_wait_adc);
+ mutex_unlock(&s->open_sem_adc);
+ oss_broken_sleep_on(&s->open_wait_adc, MAX_SCHEDULE_TIMEOUT);
if (signal_pending(current)) {
printk("open - sig pending\n");
return -ERESTARTSYS;
}
- down(&s->open_sem_adc);
+ mutex_lock(&s->open_sem_adc);
}
}
s->open_mode |= file->f_mode & (FMODE_READ | FMODE_WRITE);
@@ -2456,7 +2490,7 @@ static int cs4297a_open(struct inode *inode, struct file *file)
s->ena &= ~FMODE_READ;
s->dma_adc.ossfragshift = s->dma_adc.ossmaxfrags =
s->dma_adc.subdivision = 0;
- up(&s->open_sem_adc);
+ mutex_unlock(&s->open_sem_adc);
if (prog_dmabuf_adc(s)) {
CS_DBGOUT(CS_OPEN | CS_ERROR, 2, printk(KERN_ERR
@@ -2474,7 +2508,7 @@ static int cs4297a_open(struct inode *inode, struct file *file)
s->ena &= ~FMODE_WRITE;
s->dma_dac.ossfragshift = s->dma_dac.ossmaxfrags =
s->dma_dac.subdivision = 0;
- up(&s->open_sem_dac);
+ mutex_unlock(&s->open_sem_dac);
if (prog_dmabuf_dac(s)) {
CS_DBGOUT(CS_OPEN | CS_ERROR, 2, printk(KERN_ERR
@@ -2488,23 +2522,33 @@ 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.
// ******************************************************************************************
-static /*const */ struct file_operations cs4297a_audio_fops = {
+static const struct file_operations cs4297a_audio_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.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,
};
-static void cs4297a_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static void cs4297a_interrupt(int irq, void *dev_id)
{
struct cs4297a_state *s = (struct cs4297a_state *) dev_id;
u32 status;
@@ -2581,15 +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);
@@ -2615,14 +2656,12 @@ 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 = kmalloc(sizeof(struct cs4297a_state), GFP_KERNEL))) {
+ if (!(s = kzalloc(sizeof(struct cs4297a_state), GFP_KERNEL))) {
CS_DBGOUT(CS_ERROR, 1, printk(KERN_ERR
"cs4297a: probe() no memory for state struct.\n"));
return -1;
}
- memset(s, 0, sizeof(struct cs4297a_state));
s->magic = CS4297a_MAGIC;
init_waitqueue_head(&s->dma_adc.wait);
init_waitqueue_head(&s->dma_dac.wait);
@@ -2631,8 +2670,8 @@ static int __init cs4297a_init(void)
init_waitqueue_head(&s->open_wait);
init_waitqueue_head(&s->open_wait_adc);
init_waitqueue_head(&s->open_wait_dac);
- init_MUTEX(&s->open_sem_adc);
- init_MUTEX(&s->open_sem_dac);
+ mutex_init(&s->open_sem_adc);
+ mutex_init(&s->open_sem_dac);
spin_lock_init(&s->lock);
s->irq = K_INT_SER_1;
@@ -2675,7 +2714,7 @@ static int __init cs4297a_init(void)
#if 0
val = SOUND_MASK_LINE;
mixer_ioctl(s, SOUND_MIXER_WRITE_RECSRC, (unsigned long) &val);
- for (i = 0; i < sizeof(initvol) / sizeof(initvol[0]); i++) {
+ for (i = 0; i < ARRAY_SIZE(initvol); i++) {
val = initvol[i].vol;
mixer_ioctl(s, initvol[i].mixch, (unsigned long) &val);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 23:14:53 +0000