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>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
b5ffc223e4
commit
c3fda7f835
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@ -32,7 +32,7 @@
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#include <asm/uaccess.h>
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#include <media/rds.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-i2c-drv-legacy.h>
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/* Addresses to scan */
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@ -74,7 +74,7 @@ MODULE_LICENSE("GPL");
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#define dprintk if (debug) printk
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struct saa6588 {
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struct i2c_client *client;
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struct v4l2_subdev sd;
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struct work_struct work;
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struct timer_list timer;
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spinlock_t lock;
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@ -88,6 +88,11 @@ struct saa6588 {
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int data_available_for_read;
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};
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static inline struct saa6588 *to_saa6588(struct v4l2_subdev *sd)
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{
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return container_of(sd, struct saa6588, sd);
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}
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/* ---------------------------------------------------------------------- */
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/*
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@ -257,6 +262,7 @@ static void block_to_buf(struct saa6588 *s, unsigned char *blockbuf)
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static void saa6588_i2c_poll(struct saa6588 *s)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&s->sd);
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unsigned long flags;
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unsigned char tmpbuf[6];
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unsigned char blocknum;
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@ -264,7 +270,7 @@ static void saa6588_i2c_poll(struct saa6588 *s)
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/* Although we only need 3 bytes, we have to read at least 6.
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SAA6588 returns garbage otherwise */
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if (6 != i2c_master_recv(s->client, &tmpbuf[0], 6)) {
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if (6 != i2c_master_recv(client, &tmpbuf[0], 6)) {
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if (debug > 1)
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dprintk(PREFIX "read error!\n");
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return;
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@ -332,6 +338,7 @@ static void saa6588_work(struct work_struct *work)
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static int saa6588_configure(struct saa6588 *s)
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{
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struct i2c_client *client = v4l2_get_subdevdata(&s->sd);
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unsigned char buf[3];
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int rc;
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@ -379,7 +386,7 @@ static int saa6588_configure(struct saa6588 *s)
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dprintk(PREFIX "writing: 0w=0x%02x 1w=0x%02x 2w=0x%02x\n",
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buf[0], buf[1], buf[2]);
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rc = i2c_master_send(s->client, buf, 3);
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rc = i2c_master_send(client, buf, 3);
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if (rc != 3)
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printk(PREFIX "i2c i/o error: rc == %d (should be 3)\n", rc);
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@ -388,63 +395,10 @@ static int saa6588_configure(struct saa6588 *s)
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/* ---------------------------------------------------------------------- */
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static int saa6588_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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static long saa6588_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
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{
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struct saa6588 *s;
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v4l_info(client, "saa6588 found @ 0x%x (%s)\n",
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client->addr << 1, client->adapter->name);
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s = kzalloc(sizeof(*s), GFP_KERNEL);
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if (s == NULL)
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return -ENOMEM;
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s->client = client;
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s->buf_size = bufblocks * 3;
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s->buffer = kmalloc(s->buf_size, GFP_KERNEL);
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if (s->buffer == NULL) {
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kfree(s);
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return -ENOMEM;
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}
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spin_lock_init(&s->lock);
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s->block_count = 0;
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s->wr_index = 0;
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s->rd_index = 0;
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s->last_blocknum = 0xff;
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init_waitqueue_head(&s->read_queue);
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s->data_available_for_read = 0;
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i2c_set_clientdata(client, s);
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saa6588_configure(s);
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/* start polling via eventd */
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INIT_WORK(&s->work, saa6588_work);
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init_timer(&s->timer);
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s->timer.function = saa6588_timer;
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s->timer.data = (unsigned long)s;
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schedule_work(&s->work);
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return 0;
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}
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static int saa6588_remove(struct i2c_client *client)
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{
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struct saa6588 *s = i2c_get_clientdata(client);
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del_timer_sync(&s->timer);
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flush_scheduled_work();
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kfree(s->buffer);
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kfree(s);
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return 0;
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}
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static int saa6588_command(struct i2c_client *client, unsigned int cmd,
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void *arg)
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{
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struct saa6588 *s = i2c_get_clientdata(client);
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struct rds_command *a = (struct rds_command *)arg;
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struct saa6588 *s = to_saa6588(sd);
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struct rds_command *a = arg;
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switch (cmd) {
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/* --- open() for /dev/radio --- */
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@ -472,11 +426,84 @@ static int saa6588_command(struct i2c_client *client, unsigned int cmd,
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default:
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/* nothing */
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break;
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return -ENOIOCTLCMD;
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}
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return 0;
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}
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static int saa6588_command(struct i2c_client *client, unsigned cmd, void *arg)
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{
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return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
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}
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/* ----------------------------------------------------------------------- */
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static const struct v4l2_subdev_core_ops saa6588_core_ops = {
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.ioctl = saa6588_ioctl,
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};
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static const struct v4l2_subdev_ops saa6588_ops = {
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.core = &saa6588_core_ops,
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};
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/* ---------------------------------------------------------------------- */
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static int saa6588_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct saa6588 *s;
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struct v4l2_subdev *sd;
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v4l_info(client, "saa6588 found @ 0x%x (%s)\n",
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client->addr << 1, client->adapter->name);
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s = kzalloc(sizeof(*s), GFP_KERNEL);
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if (s == NULL)
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return -ENOMEM;
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s->buf_size = bufblocks * 3;
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s->buffer = kmalloc(s->buf_size, GFP_KERNEL);
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if (s->buffer == NULL) {
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kfree(s);
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return -ENOMEM;
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}
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sd = &s->sd;
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v4l2_i2c_subdev_init(sd, client, &saa6588_ops);
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spin_lock_init(&s->lock);
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s->block_count = 0;
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s->wr_index = 0;
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s->rd_index = 0;
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s->last_blocknum = 0xff;
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init_waitqueue_head(&s->read_queue);
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s->data_available_for_read = 0;
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saa6588_configure(s);
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/* start polling via eventd */
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INIT_WORK(&s->work, saa6588_work);
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init_timer(&s->timer);
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s->timer.function = saa6588_timer;
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s->timer.data = (unsigned long)s;
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schedule_work(&s->work);
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return 0;
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}
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static int saa6588_remove(struct i2c_client *client)
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{
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struct v4l2_subdev *sd = i2c_get_clientdata(client);
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struct saa6588 *s = to_saa6588(sd);
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v4l2_device_unregister_subdev(sd);
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del_timer_sync(&s->timer);
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flush_scheduled_work();
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kfree(s->buffer);
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kfree(s);
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return 0;
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}
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/* ----------------------------------------------------------------------- */
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static const struct i2c_device_id saa6588_id[] = {
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