summaryrefslogtreecommitdiff
path: root/drivers/media/video/adv7175.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/video/adv7175.c')
-rw-r--r--drivers/media/video/adv7175.c330
1 files changed, 151 insertions, 179 deletions
diff --git a/drivers/media/video/adv7175.c b/drivers/media/video/adv7175.c
index 6008e84653f1..cf8c06c85ded 100644
--- a/drivers/media/video/adv7175.c
+++ b/drivers/media/video/adv7175.c
@@ -30,15 +30,19 @@
#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>
+#include <linux/videodev2.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv.h>
MODULE_DESCRIPTION("Analog Devices ADV7175 video encoder driver");
MODULE_AUTHOR("Dave Perks");
MODULE_LICENSE("GPL");
+#define I2C_ADV7175 0xd4
+#define I2C_ADV7176 0x54
+
+
static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0-1)");
@@ -46,36 +50,38 @@ MODULE_PARM_DESC(debug, "Debug level (0-1)");
/* ----------------------------------------------------------------------- */
struct adv7175 {
- int norm;
+ struct v4l2_subdev sd;
+ v4l2_std_id norm;
int input;
- int enable;
- int bright;
- int contrast;
- int hue;
- int sat;
};
-#define I2C_ADV7175 0xd4
-#define I2C_ADV7176 0x54
+static inline struct adv7175 *to_adv7175(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct adv7175, sd);
+}
static char *inputs[] = { "pass_through", "play_back", "color_bar" };
-static char *norms[] = { "PAL", "NTSC", "SECAM->PAL (may not work!)" };
/* ----------------------------------------------------------------------- */
-static inline int adv7175_write(struct i2c_client *client, u8 reg, u8 value)
+static inline int adv7175_write(struct v4l2_subdev *sd, u8 reg, u8 value)
{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
return i2c_smbus_write_byte_data(client, reg, value);
}
-static inline int adv7175_read(struct i2c_client *client, u8 reg)
+static inline int adv7175_read(struct v4l2_subdev *sd, u8 reg)
{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
return i2c_smbus_read_byte_data(client, reg);
}
-static int adv7175_write_block(struct i2c_client *client,
+static int adv7175_write_block(struct v4l2_subdev *sd,
const u8 *data, unsigned int len)
{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret = -1;
u8 reg;
@@ -103,7 +109,7 @@ static int adv7175_write_block(struct i2c_client *client,
/* do some slow I2C emulation kind of thing */
while (len >= 2) {
reg = *data++;
- ret = adv7175_write(client, reg, *data++);
+ ret = adv7175_write(sd, reg, *data++);
if (ret < 0)
break;
len -= 2;
@@ -113,18 +119,18 @@ static int adv7175_write_block(struct i2c_client *client,
return ret;
}
-static void set_subcarrier_freq(struct i2c_client *client, int pass_through)
+static void set_subcarrier_freq(struct v4l2_subdev *sd, int pass_through)
{
/* for some reason pass_through NTSC needs
* a different sub-carrier freq to remain stable. */
if (pass_through)
- adv7175_write(client, 0x02, 0x00);
+ adv7175_write(sd, 0x02, 0x00);
else
- adv7175_write(client, 0x02, 0x55);
+ adv7175_write(sd, 0x02, 0x55);
- adv7175_write(client, 0x03, 0x55);
- adv7175_write(client, 0x04, 0x55);
- adv7175_write(client, 0x05, 0x25);
+ adv7175_write(sd, 0x03, 0x55);
+ adv7175_write(sd, 0x04, 0x55);
+ adv7175_write(sd, 0x05, 0x25);
}
/* ----------------------------------------------------------------------- */
@@ -184,180 +190,145 @@ static const unsigned char init_ntsc[] = {
0x06, 0x1a, /* subc. phase */
};
-static int adv7175_command(struct i2c_client *client, unsigned cmd, void *arg)
+static int adv7175_init(struct v4l2_subdev *sd, u32 val)
{
- struct adv7175 *encoder = i2c_get_clientdata(client);
+ /* This is just for testing!!! */
+ adv7175_write_block(sd, init_common, sizeof(init_common));
+ adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+ adv7175_write(sd, 0x07, TR0MODE);
+ return 0;
+}
- switch (cmd) {
- case 0:
- /* This is just for testing!!! */
- adv7175_write_block(client, init_common,
- sizeof(init_common));
- adv7175_write(client, 0x07, TR0MODE | TR0RST);
- adv7175_write(client, 0x07, TR0MODE);
- break;
+static int adv7175_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+ struct adv7175 *encoder = to_adv7175(sd);
+
+ if (std & V4L2_STD_NTSC) {
+ adv7175_write_block(sd, init_ntsc, sizeof(init_ntsc));
+ if (encoder->input == 0)
+ adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
+ adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+ adv7175_write(sd, 0x07, TR0MODE);
+ } else if (std & V4L2_STD_PAL) {
+ adv7175_write_block(sd, init_pal, sizeof(init_pal));
+ if (encoder->input == 0)
+ adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
+ adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+ adv7175_write(sd, 0x07, TR0MODE);
+ } else if (std & V4L2_STD_SECAM) {
+ /* This is an attempt to convert
+ * SECAM->PAL (typically it does not work
+ * due to genlock: when decoder is in SECAM
+ * and encoder in in PAL the subcarrier can
+ * not be syncronized with horizontal
+ * quency) */
+ adv7175_write_block(sd, init_pal, sizeof(init_pal));
+ if (encoder->input == 0)
+ adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */
+ adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+ adv7175_write(sd, 0x07, TR0MODE);
+ } else {
+ v4l2_dbg(1, debug, sd, "illegal norm: %llx\n",
+ (unsigned long long)std);
+ return -EINVAL;
+ }
+ v4l2_dbg(1, debug, sd, "switched to %llx\n", (unsigned long long)std);
+ encoder->norm = std;
+ return 0;
+}
- case ENCODER_GET_CAPABILITIES:
- {
- struct video_encoder_capability *cap = arg;
+static int adv7175_s_routing(struct v4l2_subdev *sd,
+ u32 input, u32 output, u32 config)
+{
+ struct adv7175 *encoder = to_adv7175(sd);
- cap->flags = VIDEO_ENCODER_PAL |
- VIDEO_ENCODER_NTSC |
- VIDEO_ENCODER_SECAM; /* well, hacky */
- cap->inputs = 2;
- cap->outputs = 1;
- break;
- }
+ /* RJ: input = 0: input is from decoder
+ input = 1: input is from ZR36060
+ input = 2: color bar */
- case ENCODER_SET_NORM:
- {
- int iarg = *(int *) arg;
-
- switch (iarg) {
- case VIDEO_MODE_NTSC:
- adv7175_write_block(client, init_ntsc,
- sizeof(init_ntsc));
- if (encoder->input == 0)
- adv7175_write(client, 0x0d, 0x4f); // Enable genlock
- adv7175_write(client, 0x07, TR0MODE | TR0RST);
- adv7175_write(client, 0x07, TR0MODE);
- break;
-
- case VIDEO_MODE_PAL:
- adv7175_write_block(client, init_pal,
- sizeof(init_pal));
- if (encoder->input == 0)
- adv7175_write(client, 0x0d, 0x4f); // Enable genlock
- adv7175_write(client, 0x07, TR0MODE | TR0RST);
- adv7175_write(client, 0x07, TR0MODE);
- break;
-
- case VIDEO_MODE_SECAM: // WARNING! ADV7176 does not support SECAM.
- /* This is an attempt to convert
- * SECAM->PAL (typically it does not work
- * due to genlock: when decoder is in SECAM
- * and encoder in in PAL the subcarrier can
- * not be syncronized with horizontal
- * quency) */
- adv7175_write_block(client, init_pal,
- sizeof(init_pal));
- if (encoder->input == 0)
- adv7175_write(client, 0x0d, 0x49); // Disable genlock
- adv7175_write(client, 0x07, TR0MODE | TR0RST);
- adv7175_write(client, 0x07, TR0MODE);
- break;
- default:
- v4l_dbg(1, debug, client, "illegal norm: %d\n", iarg);
- return -EINVAL;
- }
- v4l_dbg(1, debug, client, "switched to %s\n", norms[iarg]);
- encoder->norm = iarg;
+ switch (input) {
+ case 0:
+ adv7175_write(sd, 0x01, 0x00);
+
+ if (encoder->norm & V4L2_STD_NTSC)
+ set_subcarrier_freq(sd, 1);
+
+ adv7175_write(sd, 0x0c, TR1CAPT); /* TR1 */
+ if (encoder->norm & V4L2_STD_SECAM)
+ adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */
+ else
+ adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
+ adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+ adv7175_write(sd, 0x07, TR0MODE);
+ /*udelay(10);*/
break;
- }
- case ENCODER_SET_INPUT:
- {
- int iarg = *(int *) arg;
-
- /* RJ: *iarg = 0: input is from SAA7110
- *iarg = 1: input is from ZR36060
- *iarg = 2: color bar */
-
- switch (iarg) {
- case 0:
- adv7175_write(client, 0x01, 0x00);
-
- if (encoder->norm == VIDEO_MODE_NTSC)
- set_subcarrier_freq(client, 1);
-
- adv7175_write(client, 0x0c, TR1CAPT); /* TR1 */
- if (encoder->norm == VIDEO_MODE_SECAM)
- adv7175_write(client, 0x0d, 0x49); // Disable genlock
- else
- adv7175_write(client, 0x0d, 0x4f); // Enable genlock
- adv7175_write(client, 0x07, TR0MODE | TR0RST);
- adv7175_write(client, 0x07, TR0MODE);
- //udelay(10);
- break;
-
- case 1:
- adv7175_write(client, 0x01, 0x00);
-
- if (encoder->norm == VIDEO_MODE_NTSC)
- set_subcarrier_freq(client, 0);
-
- adv7175_write(client, 0x0c, TR1PLAY); /* TR1 */
- adv7175_write(client, 0x0d, 0x49);
- adv7175_write(client, 0x07, TR0MODE | TR0RST);
- adv7175_write(client, 0x07, TR0MODE);
- /* udelay(10); */
- break;
-
- case 2:
- adv7175_write(client, 0x01, 0x80);
-
- if (encoder->norm == VIDEO_MODE_NTSC)
- set_subcarrier_freq(client, 0);
-
- adv7175_write(client, 0x0d, 0x49);
- adv7175_write(client, 0x07, TR0MODE | TR0RST);
- adv7175_write(client, 0x07, TR0MODE);
- /* udelay(10); */
- break;
-
- default:
- v4l_dbg(1, debug, client, "illegal input: %d\n", iarg);
- return -EINVAL;
- }
- v4l_dbg(1, debug, client, "switched to %s\n", inputs[iarg]);
- encoder->input = iarg;
- break;
- }
+ case 1:
+ adv7175_write(sd, 0x01, 0x00);
- case ENCODER_SET_OUTPUT:
- {
- int *iarg = arg;
+ if (encoder->norm & V4L2_STD_NTSC)
+ set_subcarrier_freq(sd, 0);
- /* not much choice of outputs */
- if (*iarg != 0)
- return -EINVAL;
+ adv7175_write(sd, 0x0c, TR1PLAY); /* TR1 */
+ adv7175_write(sd, 0x0d, 0x49);
+ adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+ adv7175_write(sd, 0x07, TR0MODE);
+ /* udelay(10); */
break;
- }
- case ENCODER_ENABLE_OUTPUT:
- {
- int *iarg = arg;
+ case 2:
+ adv7175_write(sd, 0x01, 0x80);
+
+ if (encoder->norm & V4L2_STD_NTSC)
+ set_subcarrier_freq(sd, 0);
- encoder->enable = !!*iarg;
+ adv7175_write(sd, 0x0d, 0x49);
+ adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+ adv7175_write(sd, 0x07, TR0MODE);
+ /* udelay(10); */
break;
- }
default:
+ v4l2_dbg(1, debug, sd, "illegal input: %d\n", input);
return -EINVAL;
}
-
+ v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[input]);
+ encoder->input = input;
return 0;
}
+static int adv7175_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_ADV7175, 0);
+}
+
/* ----------------------------------------------------------------------- */
-/*
- * Generic i2c probe
- * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
- */
-static unsigned short normal_i2c[] = {
- I2C_ADV7175 >> 1, (I2C_ADV7175 >> 1) + 1,
- I2C_ADV7176 >> 1, (I2C_ADV7176 >> 1) + 1,
- I2C_CLIENT_END
+static const struct v4l2_subdev_core_ops adv7175_core_ops = {
+ .g_chip_ident = adv7175_g_chip_ident,
+ .init = adv7175_init,
};
-I2C_CLIENT_INSMOD;
+static const struct v4l2_subdev_video_ops adv7175_video_ops = {
+ .s_std_output = adv7175_s_std_output,
+ .s_routing = adv7175_s_routing,
+};
+
+static const struct v4l2_subdev_ops adv7175_ops = {
+ .core = &adv7175_core_ops,
+ .video = &adv7175_video_ops,
+};
+
+/* ----------------------------------------------------------------------- */
static int adv7175_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
int i;
struct adv7175 *encoder;
+ struct v4l2_subdev *sd;
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@@ -369,26 +340,29 @@ static int adv7175_probe(struct i2c_client *client,
encoder = kzalloc(sizeof(struct adv7175), GFP_KERNEL);
if (encoder == NULL)
return -ENOMEM;
- encoder->norm = VIDEO_MODE_PAL;
+ sd = &encoder->sd;
+ v4l2_i2c_subdev_init(sd, client, &adv7175_ops);
+ encoder->norm = V4L2_STD_NTSC;
encoder->input = 0;
- encoder->enable = 1;
- i2c_set_clientdata(client, encoder);
- i = adv7175_write_block(client, init_common, sizeof(init_common));
+ i = adv7175_write_block(sd, init_common, sizeof(init_common));
if (i >= 0) {
- i = adv7175_write(client, 0x07, TR0MODE | TR0RST);
- i = adv7175_write(client, 0x07, TR0MODE);
- i = adv7175_read(client, 0x12);
- v4l_dbg(1, debug, client, "revision %d\n", i & 1);
+ i = adv7175_write(sd, 0x07, TR0MODE | TR0RST);
+ i = adv7175_write(sd, 0x07, TR0MODE);
+ i = adv7175_read(sd, 0x12);
+ v4l2_dbg(1, debug, sd, "revision %d\n", i & 1);
}
if (i < 0)
- v4l_dbg(1, debug, client, "init error 0x%x\n", i);
+ v4l2_dbg(1, debug, sd, "init error 0x%x\n", i);
return 0;
}
static int adv7175_remove(struct i2c_client *client)
{
- kfree(i2c_get_clientdata(client));
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+ v4l2_device_unregister_subdev(sd);
+ kfree(to_adv7175(sd));
return 0;
}
@@ -403,8 +377,6 @@ MODULE_DEVICE_TABLE(i2c, adv7175_id);
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "adv7175",
- .driverid = I2C_DRIVERID_ADV7175,
- .command = adv7175_command,
.probe = adv7175_probe,
.remove = adv7175_remove,
.id_table = adv7175_id,
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-30 16:52:15 +0300