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path: root/drivers/media/video/saa7127.c
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Diffstat (limited to 'drivers/media/video/saa7127.c')
-rw-r--r--drivers/media/video/saa7127.c148
1 files changed, 45 insertions, 103 deletions
diff --git a/drivers/media/video/saa7127.c b/drivers/media/video/saa7127.c
index e35ef321ec71..06c88db656b4 100644
--- a/drivers/media/video/saa7127.c
+++ b/drivers/media/video/saa7127.c
@@ -55,10 +55,11 @@
#include <linux/videodev2.h>
#include <media/v4l2-common.h>
#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv.h>
#include <media/saa7127.h>
-static int debug = 0;
-static int test_image = 0;
+static int debug;
+static int test_image;
MODULE_DESCRIPTION("Philips SAA7127/9 video encoder driver");
MODULE_AUTHOR("Kevin Thayer, Chris Kennedy, Hans Verkuil");
@@ -68,10 +69,6 @@ module_param(test_image, int, 0644);
MODULE_PARM_DESC(debug, "debug level (0-2)");
MODULE_PARM_DESC(test_image, "test_image (0-1)");
-static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
-
-
-I2C_CLIENT_INSMOD;
/*
* SAA7127 registers
@@ -360,9 +357,10 @@ static int saa7127_set_cc(struct i2c_client *client, struct v4l2_sliced_vbi_data
if (enable && (data->field != 0 || data->line != 21))
return -EINVAL;
if (state->cc_enable != enable) {
- v4l_dbg(1, debug, client, "Turn CC %s\n", enable ? "on" : "off");
+ v4l_dbg(1, debug, client,
+ "Turn CC %s\n", enable ? "on" : "off");
saa7127_write(client, SAA7127_REG_CLOSED_CAPTION,
- (state->xds_enable << 7) | (enable << 6) | 0x11);
+ (state->xds_enable << 7) | (enable << 6) | 0x11);
state->cc_enable = enable;
}
if (!enable)
@@ -420,7 +418,8 @@ static int saa7127_set_wss(struct i2c_client *client, struct v4l2_sliced_vbi_dat
saa7127_write(client, 0x26, data->data[0]);
saa7127_write(client, 0x27, 0x80 | (data->data[1] & 0x3f));
- v4l_dbg(1, debug, client, "WSS mode: %s\n", wss_strs[data->data[0] & 0xf]);
+ v4l_dbg(1, debug, client,
+ "WSS mode: %s\n", wss_strs[data->data[0] & 0xf]);
state->wss_mode = (data->data[1] & 0x3f) << 8 | data->data[0];
return 0;
}
@@ -507,7 +506,8 @@ static int saa7127_set_output_type(struct i2c_client *client, int output)
default:
return -EINVAL;
}
- v4l_dbg(1, debug, client, "Selecting %s output type\n", output_strs[output]);
+ v4l_dbg(1, debug, client,
+ "Selecting %s output type\n", output_strs[output]);
/* Configure Encoder */
saa7127_write(client, 0x2d, state->reg_2d);
@@ -569,12 +569,10 @@ static int saa7127_command(struct i2c_client *client,
{
int rc = 0;
- if (state->input_type != route->input) {
+ if (state->input_type != route->input)
rc = saa7127_set_input_type(client, route->input);
- }
- if (rc == 0 && state->output_type != route->output) {
+ if (rc == 0 && state->output_type != route->output)
rc = saa7127_set_output_type(client, route->output);
- }
return rc;
}
@@ -620,7 +618,8 @@ static int saa7127_command(struct i2c_client *client,
{
struct v4l2_register *reg = arg;
- if (!v4l2_chip_match_i2c_client(client, reg->match_type, reg->match_chip))
+ if (!v4l2_chip_match_i2c_client(client,
+ reg->match_type, reg->match_chip))
return -EINVAL;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
@@ -637,16 +636,16 @@ static int saa7127_command(struct i2c_client *client,
struct v4l2_sliced_vbi_data *data = arg;
switch (data->id) {
- case V4L2_SLICED_WSS_625:
- return saa7127_set_wss(client, data);
- case V4L2_SLICED_VPS:
- return saa7127_set_vps(client, data);
- case V4L2_SLICED_CAPTION_525:
- if (data->field == 0)
- return saa7127_set_cc(client, data);
- return saa7127_set_xds(client, data);
- default:
- return -EINVAL;
+ case V4L2_SLICED_WSS_625:
+ return saa7127_set_wss(client, data);
+ case V4L2_SLICED_VPS:
+ return saa7127_set_vps(client, data);
+ case V4L2_SLICED_CAPTION_525:
+ if (data->field == 0)
+ return saa7127_set_cc(client, data);
+ return saa7127_set_xds(client, data);
+ default:
+ return -EINVAL;
}
break;
}
@@ -662,31 +661,20 @@ static int saa7127_command(struct i2c_client *client,
/* ----------------------------------------------------------------------- */
-static struct i2c_driver i2c_driver_saa7127;
-
-/* ----------------------------------------------------------------------- */
-
-static int saa7127_attach(struct i2c_adapter *adapter, int address, int kind)
+static int saa7127_probe(struct i2c_client *client)
{
- struct i2c_client *client;
struct saa7127_state *state;
struct v4l2_sliced_vbi_data vbi = { 0, 0, 0, 0 }; /* set to disabled */
int read_result = 0;
/* Check if the adapter supports the needed features */
- if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
- return 0;
-
- client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
- if (client == 0)
- return -ENOMEM;
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -EIO;
- client->addr = address;
- client->adapter = adapter;
- client->driver = &i2c_driver_saa7127;
snprintf(client->name, sizeof(client->name) - 1, "saa7127");
- v4l_dbg(1, debug, client, "detecting saa7127 client on address 0x%x\n", address << 1);
+ v4l_dbg(1, debug, client, "detecting saa7127 client on address 0x%x\n",
+ client->addr << 1);
/* First test register 0: Bits 5-7 are a version ID (should be 0),
and bit 2 should also be 0.
@@ -696,15 +684,12 @@ static int saa7127_attach(struct i2c_adapter *adapter, int address, int kind)
if ((saa7127_read(client, 0) & 0xe4) != 0 ||
(saa7127_read(client, 0x29) & 0x3f) != 0x1d) {
v4l_dbg(1, debug, client, "saa7127 not found\n");
- kfree(client);
- return 0;
+ return -ENODEV;
}
state = kzalloc(sizeof(struct saa7127_state), GFP_KERNEL);
- if (state == NULL) {
- kfree(client);
- return (-ENOMEM);
- }
+ if (state == NULL)
+ return -ENOMEM;
i2c_set_clientdata(client, state);
@@ -718,91 +703,48 @@ static int saa7127_attach(struct i2c_adapter *adapter, int address, int kind)
saa7127_set_wss(client, &vbi);
saa7127_set_cc(client, &vbi);
saa7127_set_xds(client, &vbi);
- if (test_image == 1) {
+ if (test_image == 1)
/* The Encoder has an internal Colorbar generator */
/* This can be used for debugging */
saa7127_set_input_type(client, SAA7127_INPUT_TYPE_TEST_IMAGE);
- } else {
+ else
saa7127_set_input_type(client, SAA7127_INPUT_TYPE_NORMAL);
- }
saa7127_set_video_enable(client, 1);
/* Detect if it's an saa7129 */
read_result = saa7127_read(client, SAA7129_REG_FADE_KEY_COL2);
saa7127_write(client, SAA7129_REG_FADE_KEY_COL2, 0xaa);
if (saa7127_read(client, SAA7129_REG_FADE_KEY_COL2) == 0xaa) {
- v4l_info(client, "saa7129 found @ 0x%x (%s)\n", address << 1, adapter->name);
+ v4l_info(client, "saa7129 found @ 0x%x (%s)\n",
+ client->addr << 1, client->adapter->name);
saa7127_write(client, SAA7129_REG_FADE_KEY_COL2, read_result);
saa7127_write_inittab(client, saa7129_init_config_extra);
state->ident = V4L2_IDENT_SAA7129;
} else {
- v4l_info(client, "saa7127 found @ 0x%x (%s)\n", address << 1, adapter->name);
+ v4l_info(client, "saa7127 found @ 0x%x (%s)\n",
+ client->addr << 1, client->adapter->name);
state->ident = V4L2_IDENT_SAA7127;
}
-
- i2c_attach_client(client);
-
return 0;
}
/* ----------------------------------------------------------------------- */
-static int saa7127_probe(struct i2c_adapter *adapter)
+static int saa7127_remove(struct i2c_client *client)
{
- if (adapter->class & I2C_CLASS_TV_ANALOG)
- return i2c_probe(adapter, &addr_data, saa7127_attach);
- return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-
-static int saa7127_detach(struct i2c_client *client)
-{
- struct saa7127_state *state = i2c_get_clientdata(client);
- int err;
-
/* Turn off TV output */
saa7127_set_video_enable(client, 0);
-
- err = i2c_detach_client(client);
-
- if (err) {
- return err;
- }
-
- kfree(state);
- kfree(client);
+ kfree(i2c_get_clientdata(client));
return 0;
}
/* ----------------------------------------------------------------------- */
-static struct i2c_driver i2c_driver_saa7127 = {
- .driver = {
- .name = "saa7127",
- },
- .id = I2C_DRIVERID_SAA7127,
- .attach_adapter = saa7127_probe,
- .detach_client = saa7127_detach,
+static struct v4l2_i2c_driver_data v4l2_i2c_data = {
+ .name = "saa7127",
+ .driverid = I2C_DRIVERID_SAA7127,
.command = saa7127_command,
+ .probe = saa7127_probe,
+ .remove = saa7127_remove,
};
-
-/* ----------------------------------------------------------------------- */
-
-static int __init saa7127_init_module(void)
-{
- return i2c_add_driver(&i2c_driver_saa7127);
-}
-
-/* ----------------------------------------------------------------------- */
-
-static void __exit saa7127_cleanup_module(void)
-{
- i2c_del_driver(&i2c_driver_saa7127);
-}
-
-/* ----------------------------------------------------------------------- */
-
-module_init(saa7127_init_module);
-module_exit(saa7127_cleanup_module);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.