struct ds2482_data {
struct i2c_client client;
- struct semaphore access_lock;
+ struct mutex access_lock;
/* 1-wire interface(s) */
int w1_count; /* 1 or 8 */
struct ds2482_data *pdev = pchan->pdev;
int status = -1;
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
bit ? 0xFF : 0))
status = ds2482_wait_1wire_idle(pdev);
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
return (status & DS2482_REG_STS_SBR) ? 1 : 0;
}
struct ds2482_data *pdev = pchan->pdev;
int status = (3 << 5);
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
dbit ? 0xFF : 0))
status = ds2482_wait_1wire_idle(pdev);
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
/* Decode the status */
return (status >> 5);
struct ds2482_w1_chan *pchan = data;
struct ds2482_data *pdev = pchan->pdev;
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
/* Send the write byte command */
ds2482_send_cmd_data(pdev, DS2482_CMD_1WIRE_WRITE_BYTE, byte);
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
}
/**
struct ds2482_data *pdev = pchan->pdev;
int result;
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
/* Read the data byte */
result = i2c_smbus_read_byte(&pdev->client);
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
return result;
}
int err;
u8 retval = 1;
- down(&pdev->access_lock);
+ mutex_lock(&pdev->access_lock);
/* Select the channel */
ds2482_wait_1wire_idle(pdev);
0xF0);
}
- up(&pdev->access_lock);
+ mutex_unlock(&pdev->access_lock);
return retval;
}
snprintf(new_client->name, sizeof(new_client->name), "ds2482-%d00",
data->w1_count);
- init_MUTEX(&data->access_lock);
+ mutex_init(&data->access_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
module_param_named(max_slave_count, w1_max_slave_count, int, 0);
module_param_named(slave_ttl, w1_max_slave_ttl, int, 0);
-DECLARE_MUTEX(w1_mlock);
+DEFINE_MUTEX(w1_mlock);
LIST_HEAD(w1_masters);
static struct task_struct *w1_control_thread;
{
struct w1_slave *sl = kobj_to_w1_slave(kobj);
- if (down_interruptible(&sl->master->mutex)) {
- count = 0;
- goto out;
- }
-
+ mutex_lock(&sl->master->mutex);
if (w1_reset_select_slave(sl)) {
count = 0;
goto out_up;
w1_write_block(sl->master, buf, count);
out_up:
- up(&sl->master->mutex);
-out:
+ mutex_unlock(&sl->master->mutex);
return count;
}
{
struct w1_slave *sl = kobj_to_w1_slave(kobj);
- if (down_interruptible(&sl->master->mutex)) {
- count = 0;
- goto out;
- }
-
+ mutex_lock(&sl->master->mutex);
w1_read_block(sl->master, buf, count);
-
- up(&sl->master->mutex);
-out:
+ mutex_unlock(&sl->master->mutex);
return count;
}
struct w1_master *md = dev_to_w1_master(dev);
ssize_t count;
- if (down_interruptible (&md->mutex))
- return -EBUSY;
-
+ mutex_lock(&md->mutex);
count = sprintf(buf, "%s\n", md->name);
-
- up(&md->mutex);
+ mutex_unlock(&md->mutex);
return count;
}
{
struct w1_master *md = dev_to_w1_master(dev);
- if (down_interruptible (&md->mutex))
- return -EBUSY;
-
+ mutex_lock(&md->mutex);
md->search_count = simple_strtol(buf, NULL, 0);
-
- up(&md->mutex);
+ mutex_unlock(&md->mutex);
return count;
}
struct w1_master *md = dev_to_w1_master(dev);
ssize_t count;
- if (down_interruptible (&md->mutex))
- return -EBUSY;
-
+ mutex_lock(&md->mutex);
count = sprintf(buf, "%d\n", md->search_count);
-
- up(&md->mutex);
+ mutex_unlock(&md->mutex);
return count;
}
struct w1_master *md = dev_to_w1_master(dev);
ssize_t count;
- if (down_interruptible(&md->mutex))
- return -EBUSY;
-
+ mutex_lock(&md->mutex);
count = sprintf(buf, "0x%p\n", md->bus_master);
-
- up(&md->mutex);
+ mutex_unlock(&md->mutex);
return count;
}
struct w1_master *md = dev_to_w1_master(dev);
ssize_t count;
- if (down_interruptible(&md->mutex))
- return -EBUSY;
-
+ mutex_lock(&md->mutex);
count = sprintf(buf, "%d\n", md->max_slave_count);
-
- up(&md->mutex);
+ mutex_unlock(&md->mutex);
return count;
}
struct w1_master *md = dev_to_w1_master(dev);
ssize_t count;
- if (down_interruptible(&md->mutex))
- return -EBUSY;
-
+ mutex_lock(&md->mutex);
count = sprintf(buf, "%lu\n", md->attempts);
-
- up(&md->mutex);
+ mutex_unlock(&md->mutex);
return count;
}
struct w1_master *md = dev_to_w1_master(dev);
ssize_t count;
- if (down_interruptible(&md->mutex))
- return -EBUSY;
-
+ mutex_lock(&md->mutex);
count = sprintf(buf, "%d\n", md->slave_count);
-
- up(&md->mutex);
+ mutex_unlock(&md->mutex);
return count;
}
struct w1_master *md = dev_to_w1_master(dev);
int c = PAGE_SIZE;
- if (down_interruptible(&md->mutex))
- return -EBUSY;
+ mutex_lock(&md->mutex);
if (md->slave_count == 0)
c -= snprintf(buf + PAGE_SIZE - c, c, "not found.\n");
}
}
- up(&md->mutex);
+ mutex_unlock(&md->mutex);
return PAGE_SIZE - c;
}
struct w1_master *dev;
int found = 0;
- down(&w1_mlock);
+ mutex_lock(&w1_mlock);
list_for_each_entry(dev, &w1_masters, w1_master_entry) {
if (dev->bus_master->data == data) {
found = 1;
break;
}
}
- up(&w1_mlock);
+ mutex_unlock(&w1_mlock);
return (found)?dev:NULL;
}
struct w1_master *dev;
int found = 0;
- down(&w1_mlock);
+ mutex_lock(&w1_mlock);
list_for_each_entry(dev, &w1_masters, w1_master_entry) {
if (dev->id == id) {
found = 1;
break;
}
}
- up(&w1_mlock);
+ mutex_unlock(&w1_mlock);
return (found)?dev:NULL;
}
struct w1_slave *sl = NULL;
int found = 0;
- down(&w1_mlock);
+ mutex_lock(&w1_mlock);
list_for_each_entry(dev, &w1_masters, w1_master_entry) {
- down(&dev->mutex);
+ mutex_lock(&dev->mutex);
list_for_each_entry(sl, &dev->slist, w1_slave_entry) {
if (sl->reg_num.family == id->family &&
sl->reg_num.id == id->id &&
break;
}
}
- up(&dev->mutex);
+ mutex_unlock(&dev->mutex);
if (found)
break;
}
- up(&w1_mlock);
+ mutex_unlock(&w1_mlock);
return (found)?sl:NULL;
}
{
struct w1_master *dev;
- down(&w1_mlock);
+ mutex_lock(&w1_mlock);
list_for_each_entry(dev, &w1_masters, w1_master_entry) {
dev_dbg(&dev->dev, "Reconnecting slaves in %s into new family %02x.\n",
dev->name, f->fid);
set_bit(W1_MASTER_NEED_RECONNECT, &dev->flags);
}
- up(&w1_mlock);
+ mutex_unlock(&w1_mlock);
}
static void w1_slave_found(void *data, u64 rn)
if (kthread_should_stop() || test_bit(W1_MASTER_NEED_EXIT, &dev->flags)) {
set_bit(W1_MASTER_NEED_EXIT, &dev->flags);
- down(&w1_mlock);
+ mutex_lock(&w1_mlock);
list_del(&dev->w1_master_entry);
- up(&w1_mlock);
+ mutex_unlock(&w1_mlock);
- down(&dev->mutex);
+ mutex_lock(&dev->mutex);
list_for_each_entry_safe(sl, sln, &dev->slist, w1_slave_entry) {
w1_slave_detach(sl);
}
w1_destroy_master_attributes(dev);
- up(&dev->mutex);
+ mutex_unlock(&dev->mutex);
atomic_dec(&dev->refcnt);
continue;
}
if (test_bit(W1_MASTER_NEED_RECONNECT, &dev->flags)) {
dev_dbg(&dev->dev, "Reconnecting slaves in device %s.\n", dev->name);
- down(&dev->mutex);
+ mutex_lock(&dev->mutex);
list_for_each_entry_safe(sl, sln, &dev->slist, w1_slave_entry) {
if (sl->family->fid == W1_FAMILY_DEFAULT) {
struct w1_reg_num rn;
}
dev_dbg(&dev->dev, "Reconnecting slaves in device %s has been finished.\n", dev->name);
clear_bit(W1_MASTER_NEED_RECONNECT, &dev->flags);
- up(&dev->mutex);
+ mutex_unlock(&dev->mutex);
}
}
}
if (dev->search_count == 0)
continue;
- if (down_interruptible(&dev->mutex))
- continue;
-
+ mutex_lock(&dev->mutex);
w1_search_process(dev, W1_SEARCH);
-
- up(&dev->mutex);
+ mutex_unlock(&dev->mutex);
}
atomic_dec(&dev->refcnt);
projects / linux-2.6 / commitdiff