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path: root/drivers/media/video/upd64083.c
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Diffstat (limited to 'drivers/media/video/upd64083.c')
-rw-r--r--drivers/media/video/upd64083.c166
1 files changed, 97 insertions, 69 deletions
diff --git a/drivers/media/video/upd64083.c b/drivers/media/video/upd64083.c
index 9521ce004dc..58412cb9c01 100644
--- a/drivers/media/video/upd64083.c
+++ b/drivers/media/video/upd64083.c
@@ -26,7 +26,7 @@
#include <linux/kernel.h>
#include <linux/i2c.h>
#include <linux/videodev2.h>
-#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
#include <media/v4l2-i2c-drv.h>
#include <media/upd64083.h>
@@ -51,11 +51,17 @@ enum {
};
struct upd64083_state {
+ struct v4l2_subdev sd;
u8 mode;
u8 ext_y_adc;
u8 regs[TOT_REGS];
};
+static inline struct upd64083_state *to_state(struct v4l2_subdev *sd)
+{
+ return container_of(sd, struct upd64083_state, sd);
+}
+
/* Initial values when used in combination with the
NEC upd64031a ghost reduction chip. */
static u8 upd64083_init[] = {
@@ -68,34 +74,24 @@ static u8 upd64083_init[] = {
/* ------------------------------------------------------------------------ */
-static void upd64083_log_status(struct i2c_client *client)
-{
- u8 buf[7];
-
- i2c_master_recv(client, buf, 7);
- v4l_info(client, "Status: SA00=%02x SA01=%02x SA02=%02x SA03=%02x "
- "SA04=%02x SA05=%02x SA06=%02x\n",
- buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]);
-}
-
-/* ------------------------------------------------------------------------ */
-
-static void upd64083_write(struct i2c_client *client, u8 reg, u8 val)
+static void upd64083_write(struct v4l2_subdev *sd, u8 reg, u8 val)
{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
u8 buf[2];
buf[0] = reg;
buf[1] = val;
- v4l_dbg(1, debug, client, "write reg: %02x val: %02x\n", reg, val);
+ v4l2_dbg(1, debug, sd, "write reg: %02x val: %02x\n", reg, val);
if (i2c_master_send(client, buf, 2) != 2)
- v4l_err(client, "I/O error write 0x%02x/0x%02x\n", reg, val);
+ v4l2_err(sd, "I/O error write 0x%02x/0x%02x\n", reg, val);
}
/* ------------------------------------------------------------------------ */
#ifdef CONFIG_VIDEO_ADV_DEBUG
-static u8 upd64083_read(struct i2c_client *client, u8 reg)
+static u8 upd64083_read(struct v4l2_subdev *sd, u8 reg)
{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
u8 buf[7];
if (reg >= sizeof(buf))
@@ -107,67 +103,94 @@ static u8 upd64083_read(struct i2c_client *client, u8 reg)
/* ------------------------------------------------------------------------ */
-static int upd64083_command(struct i2c_client *client, unsigned cmd, void *arg)
+static int upd64083_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
{
- struct upd64083_state *state = i2c_get_clientdata(client);
- struct v4l2_routing *route = arg;
-
- switch (cmd) {
- case VIDIOC_INT_G_VIDEO_ROUTING:
- route->input = (state->mode >> 6) | (state->ext_y_adc >> 3);
- route->output = 0;
- break;
-
- case VIDIOC_INT_S_VIDEO_ROUTING:
- {
- u8 r00, r02;
-
- if (route->input > 7 || (route->input & 6) == 6)
- return -EINVAL;
- state->mode = (route->input & 3) << 6;
- state->ext_y_adc = (route->input & UPD64083_EXT_Y_ADC) << 3;
- r00 = (state->regs[R00] & ~(3 << 6)) | state->mode;
- r02 = (state->regs[R02] & ~(1 << 5)) | state->ext_y_adc;
- upd64083_write(client, R00, r00);
- upd64083_write(client, R02, r02);
- break;
- }
-
- case VIDIOC_LOG_STATUS:
- upd64083_log_status(client);
- break;
+ struct upd64083_state *state = to_state(sd);
+ u8 r00, r02;
+
+ if (route->input > 7 || (route->input & 6) == 6)
+ return -EINVAL;
+ state->mode = (route->input & 3) << 6;
+ state->ext_y_adc = (route->input & UPD64083_EXT_Y_ADC) << 3;
+ r00 = (state->regs[R00] & ~(3 << 6)) | state->mode;
+ r02 = (state->regs[R02] & ~(1 << 5)) | state->ext_y_adc;
+ upd64083_write(sd, R00, r00);
+ upd64083_write(sd, R02, r02);
+ return 0;
+}
#ifdef CONFIG_VIDEO_ADV_DEBUG
- case VIDIOC_DBG_G_REGISTER:
- case VIDIOC_DBG_S_REGISTER:
- {
- struct v4l2_register *reg = arg;
+static int upd64083_g_register(struct v4l2_subdev *sd, struct v4l2_register *reg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ if (!v4l2_chip_match_i2c_client(client,
+ reg->match_type, reg->match_chip))
+ return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ reg->val = upd64083_read(sd, reg->reg & 0xff);
+ return 0;
+}
- if (!v4l2_chip_match_i2c_client(client,
+static int upd64083_s_register(struct v4l2_subdev *sd, struct v4l2_register *reg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ if (!v4l2_chip_match_i2c_client(client,
reg->match_type, reg->match_chip))
- return -EINVAL;
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
- if (cmd == VIDIOC_DBG_G_REGISTER) {
- reg->val = upd64083_read(client, reg->reg & 0xff);
- break;
- }
- upd64083_write(client, reg->reg & 0xff, reg->val & 0xff);
- break;
- }
+ return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ upd64083_write(sd, reg->reg & 0xff, reg->val & 0xff);
+ return 0;
+}
#endif
- case VIDIOC_G_CHIP_IDENT:
- return v4l2_chip_ident_i2c_client(client, arg,
- V4L2_IDENT_UPD64083, 0);
+static int upd64083_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_chip_ident *chip)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_UPD64083, 0);
+}
- default:
- break;
- }
+static int upd64083_log_status(struct v4l2_subdev *sd)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ u8 buf[7];
+ i2c_master_recv(client, buf, 7);
+ v4l2_info(sd, "Status: SA00=%02x SA01=%02x SA02=%02x SA03=%02x "
+ "SA04=%02x SA05=%02x SA06=%02x\n",
+ buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6]);
return 0;
}
+static int upd64083_command(struct i2c_client *client, unsigned cmd, void *arg)
+{
+ return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
+}
+
+/* ----------------------------------------------------------------------- */
+
+static const struct v4l2_subdev_core_ops upd64083_core_ops = {
+ .log_status = upd64083_log_status,
+ .g_chip_ident = upd64083_g_chip_ident,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .g_register = upd64083_g_register,
+ .s_register = upd64083_s_register,
+#endif
+};
+
+static const struct v4l2_subdev_video_ops upd64083_video_ops = {
+ .s_routing = upd64083_s_routing,
+};
+
+static const struct v4l2_subdev_ops upd64083_ops = {
+ .core = &upd64083_core_ops,
+ .video = &upd64083_video_ops,
+};
+
/* ------------------------------------------------------------------------ */
/* i2c implementation */
@@ -176,6 +199,7 @@ static int upd64083_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct upd64083_state *state;
+ struct v4l2_subdev *sd;
int i;
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@@ -187,19 +211,23 @@ static int upd64083_probe(struct i2c_client *client,
state = kmalloc(sizeof(struct upd64083_state), GFP_KERNEL);
if (state == NULL)
return -ENOMEM;
- i2c_set_clientdata(client, state);
+ sd = &state->sd;
+ v4l2_i2c_subdev_init(sd, client, &upd64083_ops);
/* Initially assume that a ghost reduction chip is present */
state->mode = 0; /* YCS mode */
state->ext_y_adc = (1 << 5);
memcpy(state->regs, upd64083_init, TOT_REGS);
for (i = 0; i < TOT_REGS; i++)
- upd64083_write(client, i, state->regs[i]);
+ upd64083_write(sd, i, state->regs[i]);
return 0;
}
static int upd64083_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_state(sd));
return 0;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-06 23:48:16 +0000