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path: root/drivers/media/video/saa6588.c
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Diffstat (limited to 'drivers/media/video/saa6588.c')
-rw-r--r--drivers/media/video/saa6588.c207
1 files changed, 94 insertions, 113 deletions
diff --git a/drivers/media/video/saa6588.c b/drivers/media/video/saa6588.c
index f05024259f01..c25e81af5ce0 100644
--- a/drivers/media/video/saa6588.c
+++ b/drivers/media/video/saa6588.c
@@ -23,7 +23,7 @@
#include <linux/kernel.h>
#include <linux/i2c.h>
#include <linux/types.h>
-#include <linux/videodev.h>
+#include <linux/videodev2.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/slab.h>
@@ -32,15 +32,10 @@
#include <asm/uaccess.h>
#include <media/rds.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv.h>
-/* Addresses to scan */
-static unsigned short normal_i2c[] = {
- 0x20 >> 1,
- 0x22 >> 1,
- I2C_CLIENT_END,
-};
-
-I2C_CLIENT_INSMOD;
/* insmod options */
static unsigned int debug;
@@ -72,9 +67,8 @@ MODULE_LICENSE("GPL");
#define dprintk if (debug) printk
struct saa6588 {
- struct i2c_client client;
- struct work_struct work;
- struct timer_list timer;
+ struct v4l2_subdev sd;
+ struct delayed_work work;
spinlock_t lock;
unsigned char *buffer;
unsigned int buf_size;
@@ -86,8 +80,10 @@ struct saa6588 {
int data_available_for_read;
};
-static struct i2c_driver driver;
-static struct i2c_client client_template;
+static inline struct saa6588 *to_saa6588(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct saa6588, sd);
+}
/* ---------------------------------------------------------------------- */
@@ -258,6 +254,7 @@ 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;
@@ -265,7 +262,7 @@ 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;
@@ -316,23 +313,17 @@ static void saa6588_i2c_poll(struct saa6588 *s)
wake_up_interruptible(&s->read_queue);
}
-static void saa6588_timer(unsigned long data)
-{
- struct saa6588 *s = (struct saa6588 *)data;
-
- schedule_work(&s->work);
-}
-
static void saa6588_work(struct work_struct *work)
{
- struct saa6588 *s = container_of(work, struct saa6588, work);
+ struct saa6588 *s = container_of(work, struct saa6588, work.work);
saa6588_i2c_poll(s);
- mod_timer(&s->timer, jiffies + msecs_to_jiffies(20));
+ schedule_delayed_work(&s->work, msecs_to_jiffies(20));
}
static int saa6588_configure(struct saa6588 *s)
{
+ struct i2c_client *client = v4l2_get_subdevdata(&s->sd);
unsigned char buf[3];
int rc;
@@ -380,7 +371,8 @@ 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]);
- if (3 != (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);
return 0;
@@ -388,70 +380,10 @@ static int saa6588_configure(struct saa6588 *s)
/* ---------------------------------------------------------------------- */
-static int saa6588_attach(struct i2c_adapter *adap, int addr, int kind)
-{
- struct saa6588 *s;
- client_template.adapter = adap;
- client_template.addr = addr;
-
- printk(PREFIX "chip found @ 0x%x\n", addr << 1);
-
- if (NULL == (s = kmalloc(sizeof(*s), GFP_KERNEL)))
- return -ENOMEM;
-
- s->buf_size = bufblocks * 3;
-
- if (NULL == (s->buffer = kmalloc(s->buf_size, GFP_KERNEL))) {
- kfree(s);
- return -ENOMEM;
- }
- spin_lock_init(&s->lock);
- s->client = client_template;
- s->block_count = 0;
- s->wr_index = 0;
- s->rd_index = 0;
- s->last_blocknum = 0xff;
- init_waitqueue_head(&s->read_queue);
- s->data_available_for_read = 0;
- i2c_set_clientdata(&s->client, s);
- i2c_attach_client(&s->client);
-
- saa6588_configure(s);
-
- /* start polling via eventd */
- INIT_WORK(&s->work, saa6588_work);
- init_timer(&s->timer);
- s->timer.function = saa6588_timer;
- s->timer.data = (unsigned long)s;
- schedule_work(&s->work);
- return 0;
-}
-
-static int saa6588_probe(struct i2c_adapter *adap)
-{
- if (adap->class & I2C_CLASS_TV_ANALOG)
- return i2c_probe(adap, &addr_data, saa6588_attach);
- return 0;
-}
-
-static int saa6588_detach(struct i2c_client *client)
-{
- struct saa6588 *s = i2c_get_clientdata(client);
-
- del_timer_sync(&s->timer);
- flush_scheduled_work();
-
- i2c_detach_client(client);
- kfree(s->buffer);
- kfree(s);
- return 0;
-}
-
-static int saa6588_command(struct i2c_client *client, unsigned int cmd,
- void *arg)
+static long saa6588_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg)
{
- struct saa6588 *s = i2c_get_clientdata(client);
- struct rds_command *a = (struct rds_command *)arg;
+ struct saa6588 *s = to_saa6588(sd);
+ struct rds_command *a = arg;
switch (cmd) {
/* --- open() for /dev/radio --- */
@@ -479,45 +411,94 @@ static int saa6588_command(struct i2c_client *client, unsigned int cmd,
default:
/* nothing */
- break;
+ return -ENOIOCTLCMD;
}
return 0;
}
+static int saa6588_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA6588, 0);
+}
+
/* ----------------------------------------------------------------------- */
-static struct i2c_driver driver = {
- .driver = {
- .name = "saa6588",
- },
- .id = -1, /* FIXME */
- .attach_adapter = saa6588_probe,
- .detach_client = saa6588_detach,
- .command = saa6588_command,
+static const struct v4l2_subdev_core_ops saa6588_core_ops = {
+ .g_chip_ident = saa6588_g_chip_ident,
+ .ioctl = saa6588_ioctl,
};
-static struct i2c_client client_template = {
- .name = "saa6588",
- .driver = &driver,
+static const struct v4l2_subdev_ops saa6588_ops = {
+ .core = &saa6588_core_ops,
};
-static int __init saa6588_init_module(void)
+/* ---------------------------------------------------------------------- */
+
+static int saa6588_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
- return i2c_add_driver(&driver);
+ struct saa6588 *s;
+ struct v4l2_subdev *sd;
+
+ v4l_info(client, "saa6588 found @ 0x%x (%s)\n",
+ client->addr << 1, client->adapter->name);
+
+ s = kzalloc(sizeof(*s), GFP_KERNEL);
+ if (s == NULL)
+ return -ENOMEM;
+
+ s->buf_size = bufblocks * 3;
+
+ s->buffer = kmalloc(s->buf_size, GFP_KERNEL);
+ if (s->buffer == NULL) {
+ 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;
+ s->rd_index = 0;
+ s->last_blocknum = 0xff;
+ init_waitqueue_head(&s->read_queue);
+ s->data_available_for_read = 0;
+
+ saa6588_configure(s);
+
+ /* start polling via eventd */
+ INIT_DELAYED_WORK(&s->work, saa6588_work);
+ schedule_delayed_work(&s->work, 0);
+ return 0;
}
-static void __exit saa6588_cleanup_module(void)
+static int saa6588_remove(struct i2c_client *client)
{
- i2c_del_driver(&driver);
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct saa6588 *s = to_saa6588(sd);
+
+ v4l2_device_unregister_subdev(sd);
+
+ cancel_delayed_work_sync(&s->work);
+
+ kfree(s->buffer);
+ kfree(s);
+ return 0;
}
-module_init(saa6588_init_module);
-module_exit(saa6588_cleanup_module);
+/* ----------------------------------------------------------------------- */
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
+static const struct i2c_device_id saa6588_id[] = {
+ { "saa6588", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, saa6588_id);
+
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+ .name = "saa6588",
+ .probe = saa6588_probe,
+ .remove = saa6588_remove,
+ .id_table = saa6588_id,
+};