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path: root/drivers/media/video/bt856.c
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Diffstat (limited to 'drivers/media/video/bt856.c')
-rw-r--r--drivers/media/video/bt856.c291
1 files changed, 128 insertions, 163 deletions
diff --git a/drivers/media/video/bt856.c b/drivers/media/video/bt856.c
index 4213867507f8..78db39503947 100644
--- a/drivers/media/video/bt856.c
+++ b/drivers/media/video/bt856.c
@@ -34,10 +34,10 @@
#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("Brooktree-856A video encoder driver");
MODULE_AUTHOR("Mike Bernson & Dave Perks");
@@ -47,43 +47,46 @@ static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0-1)");
+
/* ----------------------------------------------------------------------- */
#define BT856_REG_OFFSET 0xDA
#define BT856_NR_REG 6
struct bt856 {
+ struct v4l2_subdev sd;
unsigned char reg[BT856_NR_REG];
- int norm;
- int enable;
+ v4l2_std_id norm;
};
+static inline struct bt856 *to_bt856(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct bt856, sd);
+}
+
/* ----------------------------------------------------------------------- */
-static inline int bt856_write(struct i2c_client *client, u8 reg, u8 value)
+static inline int bt856_write(struct bt856 *encoder, u8 reg, u8 value)
{
- struct bt856 *encoder = i2c_get_clientdata(client);
+ struct i2c_client *client = v4l2_get_subdevdata(&encoder->sd);
encoder->reg[reg - BT856_REG_OFFSET] = value;
return i2c_smbus_write_byte_data(client, reg, value);
}
-static inline int bt856_setbit(struct i2c_client *client, u8 reg, u8 bit, u8 value)
+static inline int bt856_setbit(struct bt856 *encoder, u8 reg, u8 bit, u8 value)
{
- struct bt856 *encoder = i2c_get_clientdata(client);
-
- return bt856_write(client, reg,
+ return bt856_write(encoder, reg,
(encoder->reg[reg - BT856_REG_OFFSET] & ~(1 << bit)) |
(value ? (1 << bit) : 0));
}
-static void bt856_dump(struct i2c_client *client)
+static void bt856_dump(struct bt856 *encoder)
{
int i;
- struct bt856 *encoder = i2c_get_clientdata(client);
- v4l_info(client, "register dump:\n");
+ v4l2_info(&encoder->sd, "register dump:\n");
for (i = 0; i < BT856_NR_REG; i += 2)
printk(KERN_CONT " %02x", encoder->reg[i]);
printk(KERN_CONT "\n");
@@ -91,153 +94,120 @@ static void bt856_dump(struct i2c_client *client)
/* ----------------------------------------------------------------------- */
-static int bt856_command(struct i2c_client *client, unsigned cmd, void *arg)
+static int bt856_init(struct v4l2_subdev *sd, u32 arg)
{
- struct bt856 *encoder = i2c_get_clientdata(client);
-
- switch (cmd) {
- case 0:
- /* This is just for testing!!! */
- v4l_dbg(1, debug, client, "init\n");
- bt856_write(client, 0xdc, 0x18);
- bt856_write(client, 0xda, 0);
- bt856_write(client, 0xde, 0);
-
- bt856_setbit(client, 0xdc, 3, 1);
- //bt856_setbit(client, 0xdc, 6, 0);
- bt856_setbit(client, 0xdc, 4, 1);
-
- switch (encoder->norm) {
- case VIDEO_MODE_NTSC:
- bt856_setbit(client, 0xdc, 2, 0);
- break;
-
- case VIDEO_MODE_PAL:
- bt856_setbit(client, 0xdc, 2, 1);
- break;
- }
-
- bt856_setbit(client, 0xdc, 1, 1);
- bt856_setbit(client, 0xde, 4, 0);
- bt856_setbit(client, 0xde, 3, 1);
- if (debug != 0)
- bt856_dump(client);
- break;
-
- case ENCODER_GET_CAPABILITIES:
- {
- struct video_encoder_capability *cap = arg;
-
- v4l_dbg(1, debug, client, "get capabilities\n");
+ struct bt856 *encoder = to_bt856(sd);
+
+ /* This is just for testing!!! */
+ v4l2_dbg(1, debug, sd, "init\n");
+ bt856_write(encoder, 0xdc, 0x18);
+ bt856_write(encoder, 0xda, 0);
+ bt856_write(encoder, 0xde, 0);
+
+ bt856_setbit(encoder, 0xdc, 3, 1);
+ /*bt856_setbit(encoder, 0xdc, 6, 0);*/
+ bt856_setbit(encoder, 0xdc, 4, 1);
+
+ if (encoder->norm & V4L2_STD_NTSC)
+ bt856_setbit(encoder, 0xdc, 2, 0);
+ else
+ bt856_setbit(encoder, 0xdc, 2, 1);
+
+ bt856_setbit(encoder, 0xdc, 1, 1);
+ bt856_setbit(encoder, 0xde, 4, 0);
+ bt856_setbit(encoder, 0xde, 3, 1);
+ if (debug != 0)
+ bt856_dump(encoder);
+ return 0;
+}
- cap->flags = VIDEO_ENCODER_PAL |
- VIDEO_ENCODER_NTSC |
- VIDEO_ENCODER_CCIR;
- cap->inputs = 2;
- cap->outputs = 1;
- break;
- }
+static int bt856_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
+{
+ struct bt856 *encoder = to_bt856(sd);
- case ENCODER_SET_NORM:
- {
- int *iarg = arg;
-
- v4l_dbg(1, debug, client, "set norm %d\n", *iarg);
-
- switch (*iarg) {
- case VIDEO_MODE_NTSC:
- bt856_setbit(client, 0xdc, 2, 0);
- break;
-
- case VIDEO_MODE_PAL:
- bt856_setbit(client, 0xdc, 2, 1);
- bt856_setbit(client, 0xda, 0, 0);
- //bt856_setbit(client, 0xda, 0, 1);
- break;
-
- default:
- return -EINVAL;
- }
- encoder->norm = *iarg;
- if (debug != 0)
- bt856_dump(client);
- break;
- }
+ v4l2_dbg(1, debug, sd, "set norm %llx\n", (unsigned long long)std);
- case ENCODER_SET_INPUT:
- {
- int *iarg = arg;
-
- v4l_dbg(1, debug, client, "set input %d\n", *iarg);
-
- /* We only have video bus.
- * iarg = 0: input is from bt819
- * iarg = 1: input is from ZR36060 */
- switch (*iarg) {
- case 0:
- bt856_setbit(client, 0xde, 4, 0);
- bt856_setbit(client, 0xde, 3, 1);
- bt856_setbit(client, 0xdc, 3, 1);
- bt856_setbit(client, 0xdc, 6, 0);
- break;
- case 1:
- bt856_setbit(client, 0xde, 4, 0);
- bt856_setbit(client, 0xde, 3, 1);
- bt856_setbit(client, 0xdc, 3, 1);
- bt856_setbit(client, 0xdc, 6, 1);
- break;
- case 2: // Color bar
- bt856_setbit(client, 0xdc, 3, 0);
- bt856_setbit(client, 0xde, 4, 1);
- break;
- default:
- return -EINVAL;
- }
-
- if (debug != 0)
- bt856_dump(client);
- break;
+ if (std & V4L2_STD_NTSC) {
+ bt856_setbit(encoder, 0xdc, 2, 0);
+ } else if (std & V4L2_STD_PAL) {
+ bt856_setbit(encoder, 0xdc, 2, 1);
+ bt856_setbit(encoder, 0xda, 0, 0);
+ /*bt856_setbit(encoder, 0xda, 0, 1);*/
+ } else {
+ return -EINVAL;
}
+ encoder->norm = std;
+ if (debug != 0)
+ bt856_dump(encoder);
+ return 0;
+}
- case ENCODER_SET_OUTPUT:
- {
- int *iarg = arg;
+static int bt856_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
+{
+ struct bt856 *encoder = to_bt856(sd);
- v4l_dbg(1, debug, client, "set output %d\n", *iarg);
+ v4l2_dbg(1, debug, sd, "set input %d\n", route->input);
- /* not much choice of outputs */
- if (*iarg != 0)
- return -EINVAL;
+ /* We only have video bus.
+ * route->input= 0: input is from bt819
+ * route->input= 1: input is from ZR36060 */
+ switch (route->input) {
+ case 0:
+ bt856_setbit(encoder, 0xde, 4, 0);
+ bt856_setbit(encoder, 0xde, 3, 1);
+ bt856_setbit(encoder, 0xdc, 3, 1);
+ bt856_setbit(encoder, 0xdc, 6, 0);
break;
- }
-
- case ENCODER_ENABLE_OUTPUT:
- {
- int *iarg = arg;
-
- encoder->enable = !!*iarg;
-
- v4l_dbg(1, debug, client, "enable output %d\n", encoder->enable);
+ case 1:
+ bt856_setbit(encoder, 0xde, 4, 0);
+ bt856_setbit(encoder, 0xde, 3, 1);
+ bt856_setbit(encoder, 0xdc, 3, 1);
+ bt856_setbit(encoder, 0xdc, 6, 1);
+ break;
+ case 2: /* Color bar */
+ bt856_setbit(encoder, 0xdc, 3, 0);
+ bt856_setbit(encoder, 0xde, 4, 1);
break;
- }
-
default:
return -EINVAL;
}
+ if (debug != 0)
+ bt856_dump(encoder);
return 0;
}
+static int bt856_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_BT856, 0);
+}
+
/* ----------------------------------------------------------------------- */
-static unsigned short normal_i2c[] = { 0x88 >> 1, I2C_CLIENT_END };
+static const struct v4l2_subdev_core_ops bt856_core_ops = {
+ .g_chip_ident = bt856_g_chip_ident,
+ .init = bt856_init,
+};
+
+static const struct v4l2_subdev_video_ops bt856_video_ops = {
+ .s_std_output = bt856_s_std_output,
+ .s_routing = bt856_s_routing,
+};
-I2C_CLIENT_INSMOD;
+static const struct v4l2_subdev_ops bt856_ops = {
+ .core = &bt856_core_ops,
+ .video = &bt856_video_ops,
+};
+
+/* ----------------------------------------------------------------------- */
static int bt856_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct bt856 *encoder;
+ struct v4l2_subdev *sd;
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@@ -249,41 +219,38 @@ static int bt856_probe(struct i2c_client *client,
encoder = kzalloc(sizeof(struct bt856), GFP_KERNEL);
if (encoder == NULL)
return -ENOMEM;
- encoder->norm = VIDEO_MODE_NTSC;
- encoder->enable = 1;
- i2c_set_clientdata(client, encoder);
+ sd = &encoder->sd;
+ v4l2_i2c_subdev_init(sd, client, &bt856_ops);
+ encoder->norm = V4L2_STD_NTSC;
- bt856_write(client, 0xdc, 0x18);
- bt856_write(client, 0xda, 0);
- bt856_write(client, 0xde, 0);
+ bt856_write(encoder, 0xdc, 0x18);
+ bt856_write(encoder, 0xda, 0);
+ bt856_write(encoder, 0xde, 0);
- bt856_setbit(client, 0xdc, 3, 1);
- //bt856_setbit(client, 0xdc, 6, 0);
- bt856_setbit(client, 0xdc, 4, 1);
+ bt856_setbit(encoder, 0xdc, 3, 1);
+ /*bt856_setbit(encoder, 0xdc, 6, 0);*/
+ bt856_setbit(encoder, 0xdc, 4, 1);
- switch (encoder->norm) {
+ if (encoder->norm & V4L2_STD_NTSC)
+ bt856_setbit(encoder, 0xdc, 2, 0);
+ else
+ bt856_setbit(encoder, 0xdc, 2, 1);
- case VIDEO_MODE_NTSC:
- bt856_setbit(client, 0xdc, 2, 0);
- break;
-
- case VIDEO_MODE_PAL:
- bt856_setbit(client, 0xdc, 2, 1);
- break;
- }
-
- bt856_setbit(client, 0xdc, 1, 1);
- bt856_setbit(client, 0xde, 4, 0);
- bt856_setbit(client, 0xde, 3, 1);
+ bt856_setbit(encoder, 0xdc, 1, 1);
+ bt856_setbit(encoder, 0xde, 4, 0);
+ bt856_setbit(encoder, 0xde, 3, 1);
if (debug != 0)
- bt856_dump(client);
+ bt856_dump(encoder);
return 0;
}
static int bt856_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_bt856(sd));
return 0;
}
@@ -295,8 +262,6 @@ MODULE_DEVICE_TABLE(i2c, bt856_id);
static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.name = "bt856",
- .driverid = I2C_DRIVERID_BT856,
- .command = bt856_command,
.probe = bt856_probe,
.remove = bt856_remove,
.id_table = bt856_id,
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-27 00:57:38 +0300