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path: root/drivers/media/video/saa7185.c
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Diffstat (limited to 'drivers/media/video/saa7185.c')
-rw-r--r--drivers/media/video/saa7185.c210
1 files changed, 50 insertions, 160 deletions
diff --git a/drivers/media/video/saa7185.c b/drivers/media/video/saa7185.c
index 02fda4eecea..6debb65152e 100644
--- a/drivers/media/video/saa7185.c
+++ b/drivers/media/video/saa7185.c
@@ -25,43 +25,25 @@
*/
#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/major.h>
-#include <linux/slab.h>
-#include <linux/mm.h>
-#include <linux/signal.h>
#include <linux/types.h>
-#include <linux/i2c.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/page.h>
+#include <linux/ioctl.h>
#include <asm/uaccess.h>
-
+#include <linux/i2c.h>
+#include <linux/i2c-id.h>
#include <linux/videodev.h>
#include <linux/video_encoder.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-i2c-drv-legacy.h>
MODULE_DESCRIPTION("Philips SAA7185 video encoder driver");
MODULE_AUTHOR("Dave Perks");
MODULE_LICENSE("GPL");
-#define I2C_NAME(s) (s)->name
-
-
static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0-1)");
-#define dprintk(num, format, args...) \
- do { \
- if (debug >= num) \
- printk(format, ##args); \
- } while (0)
-
/* ----------------------------------------------------------------------- */
struct saa7185 {
@@ -75,32 +57,24 @@ struct saa7185 {
int sat;
};
-#define I2C_SAA7185 0x88
-
/* ----------------------------------------------------------------------- */
-static inline int
-saa7185_read (struct i2c_client *client)
+static inline int saa7185_read(struct i2c_client *client)
{
return i2c_smbus_read_byte(client);
}
-static int
-saa7185_write (struct i2c_client *client,
- u8 reg,
- u8 value)
+static int saa7185_write(struct i2c_client *client, u8 reg, u8 value)
{
struct saa7185 *encoder = i2c_get_clientdata(client);
- dprintk(1, KERN_DEBUG "SAA7185: %02x set to %02x\n", reg, value);
+ v4l_dbg(1, debug, client, "%02x set to %02x\n", reg, value);
encoder->reg[reg] = value;
return i2c_smbus_write_byte_data(client, reg, value);
}
-static int
-saa7185_write_block (struct i2c_client *client,
- const u8 *data,
- unsigned int len)
+static int saa7185_write_block(struct i2c_client *client,
+ const u8 *data, unsigned int len)
{
int ret = -1;
u8 reg;
@@ -121,18 +95,17 @@ saa7185_write_block (struct i2c_client *client,
encoder->reg[reg++] = data[1];
len -= 2;
data += 2;
- } while (len >= 2 && data[0] == reg &&
- block_len < 32);
- if ((ret = i2c_master_send(client, block_data,
- block_len)) < 0)
+ } while (len >= 2 && data[0] == reg && block_len < 32);
+ ret = i2c_master_send(client, block_data, block_len);
+ if (ret < 0)
break;
}
} else {
/* do some slow I2C emulation kind of thing */
while (len >= 2) {
reg = *data++;
- if ((ret = saa7185_write(client, reg,
- *data++)) < 0)
+ ret = saa7185_write(client, reg, *data++);
+ if (ret < 0)
break;
len -= 2;
}
@@ -240,15 +213,11 @@ static const unsigned char init_ntsc[] = {
0x66, 0x21, /* FSC3 */
};
-static int
-saa7185_command (struct i2c_client *client,
- unsigned int cmd,
- void *arg)
+static int saa7185_command(struct i2c_client *client, unsigned cmd, void *arg)
{
struct saa7185 *encoder = i2c_get_clientdata(client);
switch (cmd) {
-
case 0:
saa7185_write_block(client, init_common,
sizeof(init_common));
@@ -264,7 +233,6 @@ saa7185_command (struct i2c_client *client,
sizeof(init_pal));
break;
}
-
break;
case ENCODER_GET_CAPABILITIES:
@@ -276,8 +244,8 @@ saa7185_command (struct i2c_client *client,
VIDEO_ENCODER_SECAM | VIDEO_ENCODER_CCIR;
cap->inputs = 1;
cap->outputs = 1;
- }
break;
+ }
case ENCODER_SET_NORM:
{
@@ -286,7 +254,6 @@ saa7185_command (struct i2c_client *client,
//saa7185_write_block(client, init_common, sizeof(init_common));
switch (*iarg) {
-
case VIDEO_MODE_NTSC:
saa7185_write_block(client, init_ntsc,
sizeof(init_ntsc));
@@ -300,11 +267,10 @@ saa7185_command (struct i2c_client *client,
case VIDEO_MODE_SECAM:
default:
return -EINVAL;
-
}
encoder->norm = *iarg;
- }
break;
+ }
case ENCODER_SET_INPUT:
{
@@ -314,7 +280,6 @@ saa7185_command (struct i2c_client *client,
*iarg = 1: input is from ZR36060 */
switch (*iarg) {
-
case 0:
/* Switch RTCE to 1 */
saa7185_write(client, 0x61,
@@ -332,21 +297,19 @@ saa7185_command (struct i2c_client *client,
default:
return -EINVAL;
-
}
- }
break;
+ }
case ENCODER_SET_OUTPUT:
{
int *iarg = arg;
/* not much choice of outputs */
- if (*iarg != 0) {
+ if (*iarg != 0)
return -EINVAL;
- }
- }
break;
+ }
case ENCODER_ENABLE_OUTPUT:
{
@@ -356,8 +319,8 @@ saa7185_command (struct i2c_client *client,
saa7185_write(client, 0x61,
(encoder->reg[0x61] & 0xbf) |
(encoder->enable ? 0x00 : 0x40));
- }
break;
+ }
default:
return -EINVAL;
@@ -368,138 +331,65 @@ saa7185_command (struct i2c_client *client,
/* ----------------------------------------------------------------------- */
-/*
- * Generic i2c probe
- * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
- */
-static unsigned short normal_i2c[] = { I2C_SAA7185 >> 1, I2C_CLIENT_END };
+static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
-static unsigned short ignore = I2C_CLIENT_END;
+I2C_CLIENT_INSMOD;
-static struct i2c_client_address_data addr_data = {
- .normal_i2c = normal_i2c,
- .probe = &ignore,
- .ignore = &ignore,
-};
-
-static struct i2c_driver i2c_driver_saa7185;
-
-static int
-saa7185_detect_client (struct i2c_adapter *adapter,
- int address,
- int kind)
+static int saa7185_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
{
int i;
- struct i2c_client *client;
struct saa7185 *encoder;
- dprintk(1,
- KERN_INFO
- "saa7185.c: detecting saa7185 client on address 0x%x\n",
- address << 1);
-
/* Check if the adapter supports the needed features */
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- return 0;
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
- client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
- if (!client)
- return -ENOMEM;
- client->addr = address;
- client->adapter = adapter;
- client->driver = &i2c_driver_saa7185;
- strlcpy(I2C_NAME(client), "saa7185", sizeof(I2C_NAME(client)));
+ v4l_info(client, "chip found @ 0x%x (%s)\n",
+ client->addr << 1, client->adapter->name);
encoder = kzalloc(sizeof(struct saa7185), GFP_KERNEL);
- if (encoder == NULL) {
- kfree(client);
+ if (encoder == NULL)
return -ENOMEM;
- }
encoder->norm = VIDEO_MODE_NTSC;
encoder->enable = 1;
i2c_set_clientdata(client, encoder);
- i = i2c_attach_client(client);
- if (i) {
- kfree(client);
- kfree(encoder);
- return i;
- }
-
i = saa7185_write_block(client, init_common, sizeof(init_common));
- if (i >= 0) {
- i = saa7185_write_block(client, init_ntsc,
- sizeof(init_ntsc));
- }
- if (i < 0) {
- dprintk(1, KERN_ERR "%s_attach: init error %d\n",
- I2C_NAME(client), i);
- } else {
- dprintk(1,
- KERN_INFO
- "%s_attach: chip version %d at address 0x%x\n",
- I2C_NAME(client), saa7185_read(client) >> 5,
- client->addr << 1);
- }
-
+ if (i >= 0)
+ i = saa7185_write_block(client, init_ntsc, sizeof(init_ntsc));
+ if (i < 0)
+ v4l_dbg(1, debug, client, "init error %d\n", i);
+ else
+ v4l_dbg(1, debug, client, "revision 0x%x\n",
+ saa7185_read(client) >> 5);
return 0;
}
-static int
-saa7185_attach_adapter (struct i2c_adapter *adapter)
-{
- dprintk(1,
- KERN_INFO
- "saa7185.c: starting probe for adapter %s (0x%x)\n",
- I2C_NAME(adapter), adapter->id);
- return i2c_probe(adapter, &addr_data, &saa7185_detect_client);
-}
-
-static int
-saa7185_detach_client (struct i2c_client *client)
+static int saa7185_remove(struct i2c_client *client)
{
struct saa7185 *encoder = i2c_get_clientdata(client);
- int err;
-
- err = i2c_detach_client(client);
- if (err) {
- return err;
- }
saa7185_write(client, 0x61, (encoder->reg[0x61]) | 0x40); /* SW: output off is active */
//saa7185_write(client, 0x3a, (encoder->reg[0x3a]) | 0x80); /* SW: color bar */
kfree(encoder);
- kfree(client);
-
return 0;
}
/* ----------------------------------------------------------------------- */
-static struct i2c_driver i2c_driver_saa7185 = {
- .driver = {
- .name = "saa7185", /* name */
- },
-
- .id = I2C_DRIVERID_SAA7185B,
+static const struct i2c_device_id saa7185_id[] = {
+ { "saa7185", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, saa7185_id);
- .attach_adapter = saa7185_attach_adapter,
- .detach_client = saa7185_detach_client,
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+ .name = "saa7185",
+ .driverid = I2C_DRIVERID_SAA7185B,
.command = saa7185_command,
+ .probe = saa7185_probe,
+ .remove = saa7185_remove,
+ .id_table = saa7185_id,
};
-
-static int __init
-saa7185_init (void)
-{
- return i2c_add_driver(&i2c_driver_saa7185);
-}
-
-static void __exit
-saa7185_exit (void)
-{
- i2c_del_driver(&i2c_driver_saa7185);
-}
-
-module_init(saa7185_init);
-module_exit(saa7185_exit);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-23 23:29:40 +0000