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authorHans Verkuil <hverkuil@xs4all.nl>2009-02-11 19:23:57 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:42:45 -0300
commitc3fda7f835b025f3c020fa0865086fd23609e7ca (patch)
tree9318c496d0ed8607a93a1077199fca9580487094 /drivers/media
parentb5ffc223e48417c2db0a4ce1beacdbab6503a472 (diff)
V4L/DVB (10537): saa6588: convert to v4l2_subdev.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/video/saa6588.c115
1 files changed, 71 insertions, 44 deletions
diff --git a/drivers/media/video/saa6588.c b/drivers/media/video/saa6588.c
index 7c74ac4dd18..4d31c320ac1 100644
--- a/drivers/media/video/saa6588.c
+++ b/drivers/media/video/saa6588.c
@@ -32,7 +32,7 @@
#include <asm/uaccess.h>
#include <media/rds.h>
-#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
#include <media/v4l2-i2c-drv-legacy.h>
/* Addresses to scan */
@@ -74,7 +74,7 @@ MODULE_LICENSE("GPL");
#define dprintk if (debug) printk
struct saa6588 {
- struct i2c_client *client;
+ struct v4l2_subdev sd;
struct work_struct work;
struct timer_list timer;
spinlock_t lock;
@@ -88,6 +88,11 @@ struct saa6588 {
int data_available_for_read;
};
+static inline struct saa6588 *to_saa6588(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct saa6588, sd);
+}
+
/* ---------------------------------------------------------------------- */
/*
@@ -257,6 +262,7 @@ static void block_to_buf(struct saa6588 *s, unsigned char *blockbuf)
static void saa6588_i2c_poll(struct saa6588 *s)
{
+ struct i2c_client *client = v4l2_get_subdevdata(&s->sd);
unsigned long flags;
unsigned char tmpbuf[6];
unsigned char blocknum;
@@ -264,7 +270,7 @@ static void saa6588_i2c_poll(struct saa6588 *s)
/* Although we only need 3 bytes, we have to read at least 6.
SAA6588 returns garbage otherwise */
- if (6 != i2c_master_recv(s->client, &tmpbuf[0], 6)) {
+ if (6 != i2c_master_recv(client, &tmpbuf[0], 6)) {
if (debug > 1)
dprintk(PREFIX "read error!\n");
return;
@@ -332,6 +338,7 @@ static void saa6588_work(struct work_struct *work)
static int saa6588_configure(struct saa6588 *s)
{
+ struct i2c_client *client = v4l2_get_subdevdata(&s->sd);
unsigned char buf[3];
int rc;
@@ -379,7 +386,7 @@ static int saa6588_configure(struct saa6588 *s)
dprintk(PREFIX "writing: 0w=0x%02x 1w=0x%02x 2w=0x%02x\n",
buf[0], buf[1], buf[2]);
- rc = i2c_master_send(s->client, buf, 3);
+ rc = i2c_master_send(client, buf, 3);
if (rc != 3)
printk(PREFIX "i2c i/o error: rc == %d (should be 3)\n", rc);
@@ -388,10 +395,64 @@ static int saa6588_configure(struct saa6588 *s)
/* ---------------------------------------------------------------------- */
+static long saa6588_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
+{
+ struct saa6588 *s = to_saa6588(sd);
+ struct rds_command *a = arg;
+
+ switch (cmd) {
+ /* --- open() for /dev/radio --- */
+ case RDS_CMD_OPEN:
+ a->result = 0; /* return error if chip doesn't work ??? */
+ break;
+ /* --- close() for /dev/radio --- */
+ case RDS_CMD_CLOSE:
+ s->data_available_for_read = 1;
+ wake_up_interruptible(&s->read_queue);
+ a->result = 0;
+ break;
+ /* --- read() for /dev/radio --- */
+ case RDS_CMD_READ:
+ read_from_buf(s, a);
+ break;
+ /* --- poll() for /dev/radio --- */
+ case RDS_CMD_POLL:
+ a->result = 0;
+ if (s->data_available_for_read) {
+ a->result |= POLLIN | POLLRDNORM;
+ }
+ poll_wait(a->instance, &s->read_queue, a->event_list);
+ break;
+
+ default:
+ /* nothing */
+ return -ENOIOCTLCMD;
+ }
+ return 0;
+}
+
+static int saa6588_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+ return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops saa6588_core_ops = {
+ .ioctl = saa6588_ioctl,
+};
+
+static const struct v4l2_subdev_ops saa6588_ops = {
+ .core = &saa6588_core_ops,
+};
+
+/* ---------------------------------------------------------------------- */
+
static int saa6588_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct saa6588 *s;
+ struct v4l2_subdev *sd;
v4l_info(client, "saa6588 found @ 0x%x (%s)\n",
client->addr << 1, client->adapter->name);
@@ -400,7 +461,6 @@ static int saa6588_probe(struct i2c_client *client,
if (s == NULL)
return -ENOMEM;
- s->client = client;
s->buf_size = bufblocks * 3;
s->buffer = kmalloc(s->buf_size, GFP_KERNEL);
@@ -408,6 +468,8 @@ static int saa6588_probe(struct i2c_client *client,
kfree(s);
return -ENOMEM;
}
+ sd = &s->sd;
+ v4l2_i2c_subdev_init(sd, client, &saa6588_ops);
spin_lock_init(&s->lock);
s->block_count = 0;
s->wr_index = 0;
@@ -415,7 +477,6 @@ static int saa6588_probe(struct i2c_client *client,
s->last_blocknum = 0xff;
init_waitqueue_head(&s->read_queue);
s->data_available_for_read = 0;
- i2c_set_clientdata(client, s);
saa6588_configure(s);
@@ -430,7 +491,10 @@ static int saa6588_probe(struct i2c_client *client,
static int saa6588_remove(struct i2c_client *client)
{
- struct saa6588 *s = i2c_get_clientdata(client);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct saa6588 *s = to_saa6588(sd);
+
+ v4l2_device_unregister_subdev(sd);
del_timer_sync(&s->timer);
flush_scheduled_work();
@@ -440,43 +504,6 @@ static int saa6588_remove(struct i2c_client *client)
return 0;
}
-static int saa6588_command(struct i2c_client *client, unsigned int cmd,
- void *arg)
-{
- struct saa6588 *s = i2c_get_clientdata(client);
- struct rds_command *a = (struct rds_command *)arg;
-
- switch (cmd) {
- /* --- open() for /dev/radio --- */
- case RDS_CMD_OPEN:
- a->result = 0; /* return error if chip doesn't work ??? */
- break;
- /* --- close() for /dev/radio --- */
- case RDS_CMD_CLOSE:
- s->data_available_for_read = 1;
- wake_up_interruptible(&s->read_queue);
- a->result = 0;
- break;
- /* --- read() for /dev/radio --- */
- case RDS_CMD_READ:
- read_from_buf(s, a);
- break;
- /* --- poll() for /dev/radio --- */
- case RDS_CMD_POLL:
- a->result = 0;
- if (s->data_available_for_read) {
- a->result |= POLLIN | POLLRDNORM;
- }
- poll_wait(a->instance, &s->read_queue, a->event_list);
- break;
-
- default:
- /* nothing */
- break;
- }
- return 0;
-}
-
/* ----------------------------------------------------------------------- */
static const struct i2c_device_id saa6588_id[] = {