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path: root/drivers/media/video/cs5345.c
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Diffstat (limited to 'drivers/media/video/cs5345.c')
-rw-r--r--drivers/media/video/cs5345.c226
1 files changed, 137 insertions, 89 deletions
diff --git a/drivers/media/video/cs5345.c b/drivers/media/video/cs5345.c
index a662b15d5b90..14bebf8a116f 100644
--- a/drivers/media/video/cs5345.c
+++ b/drivers/media/video/cs5345.c
@@ -23,9 +23,9 @@
#include <linux/kernel.h>
#include <linux/i2c.h>
#include <linux/videodev2.h>
-#include <media/v4l2-i2c-drv.h>
-#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
+#include <media/v4l2-i2c-drv.h>
MODULE_DESCRIPTION("i2c device driver for cs5345 Audio ADC");
MODULE_AUTHOR("Hans Verkuil");
@@ -40,111 +40,142 @@ MODULE_PARM_DESC(debug, "Debugging messages, 0=Off (default), 1=On");
/* ----------------------------------------------------------------------- */
-static inline int cs5345_write(struct i2c_client *client, u8 reg, u8 value)
+static inline int cs5345_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 cs5345_read(struct i2c_client *client, u8 reg)
+static inline int cs5345_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 cs5345_command(struct i2c_client *client, unsigned cmd, void *arg)
+static int cs5345_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
{
- struct v4l2_routing *route = arg;
- struct v4l2_control *ctrl = arg;
-
- switch (cmd) {
- case VIDIOC_INT_G_AUDIO_ROUTING:
- route->input = cs5345_read(client, 0x09) & 7;
- route->input |= cs5345_read(client, 0x05) & 0x70;
- route->output = 0;
- break;
-
- case VIDIOC_INT_S_AUDIO_ROUTING:
- if ((route->input & 0xf) > 6) {
- v4l_err(client, "Invalid input %d.\n", route->input);
- return -EINVAL;
- }
- cs5345_write(client, 0x09, route->input & 0xf);
- cs5345_write(client, 0x05, route->input & 0xf0);
- break;
-
- case VIDIOC_G_CTRL:
- if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
- ctrl->value = (cs5345_read(client, 0x04) & 0x08) != 0;
- break;
- }
- if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
- return -EINVAL;
- ctrl->value = cs5345_read(client, 0x07) & 0x3f;
- if (ctrl->value >= 32)
- ctrl->value = ctrl->value - 64;
- break;
-
- case VIDIOC_S_CTRL:
- break;
- if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
- cs5345_write(client, 0x04, ctrl->value ? 0x80 : 0);
- break;
- }
- if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
- return -EINVAL;
- if (ctrl->value > 24 || ctrl->value < -24)
- return -EINVAL;
- cs5345_write(client, 0x07, ((u8)ctrl->value) & 0x3f);
- cs5345_write(client, 0x08, ((u8)ctrl->value) & 0x3f);
- break;
-
-#ifdef CONFIG_VIDEO_ADV_DEBUG
- case VIDIOC_DBG_G_REGISTER:
- case VIDIOC_DBG_S_REGISTER:
- {
- struct v4l2_register *reg = arg;
-
- 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 = cs5345_read(client, reg->reg & 0x1f);
- else
- cs5345_write(client, reg->reg & 0x1f, reg->val & 0xff);
- break;
+ if ((route->input & 0xf) > 6) {
+ v4l2_err(sd, "Invalid input %d.\n", route->input);
+ return -EINVAL;
}
-#endif
+ cs5345_write(sd, 0x09, route->input & 0xf);
+ cs5345_write(sd, 0x05, route->input & 0xf0);
+ return 0;
+}
- case VIDIOC_G_CHIP_IDENT:
- return v4l2_chip_ident_i2c_client(client,
- arg, V4L2_IDENT_CS5345, 0);
-
- case VIDIOC_LOG_STATUS:
- {
- u8 v = cs5345_read(client, 0x09) & 7;
- u8 m = cs5345_read(client, 0x04);
- int vol = cs5345_read(client, 0x08) & 0x3f;
-
- v4l_info(client, "Input: %d%s\n", v,
- (m & 0x80) ? " (muted)" : "");
- if (vol >= 32)
- vol = vol - 64;
- v4l_info(client, "Volume: %d dB\n", vol);
- break;
- }
-
- default:
+static int cs5345_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
+ ctrl->value = (cs5345_read(sd, 0x04) & 0x08) != 0;
+ return 0;
+ }
+ if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
return -EINVAL;
+ ctrl->value = cs5345_read(sd, 0x07) & 0x3f;
+ if (ctrl->value >= 32)
+ ctrl->value = ctrl->value - 64;
+ return 0;
+}
+
+static int cs5345_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
+ cs5345_write(sd, 0x04, ctrl->value ? 0x80 : 0);
+ return 0;
}
+ if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
+ return -EINVAL;
+ if (ctrl->value > 24 || ctrl->value < -24)
+ return -EINVAL;
+ cs5345_write(sd, 0x07, ((u8)ctrl->value) & 0x3f);
+ cs5345_write(sd, 0x08, ((u8)ctrl->value) & 0x3f);
+ return 0;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int cs5345_g_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ if (!v4l2_chip_match_i2c_client(client, &reg->match))
+ return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ reg->size = 1;
+ reg->val = cs5345_read(sd, reg->reg & 0x1f);
+ return 0;
+}
+
+static int cs5345_s_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+ if (!v4l2_chip_match_i2c_client(client, &reg->match))
+ return -EINVAL;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+ cs5345_write(sd, reg->reg & 0x1f, reg->val & 0xff);
return 0;
}
+#endif
+
+static int cs5345_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_CS5345, 0);
+}
+
+static int cs5345_log_status(struct v4l2_subdev *sd)
+{
+ u8 v = cs5345_read(sd, 0x09) & 7;
+ u8 m = cs5345_read(sd, 0x04);
+ int vol = cs5345_read(sd, 0x08) & 0x3f;
+
+ v4l2_info(sd, "Input: %d%s\n", v,
+ (m & 0x80) ? " (muted)" : "");
+ if (vol >= 32)
+ vol = vol - 64;
+ v4l2_info(sd, "Volume: %d dB\n", vol);
+ return 0;
+}
+
+static int cs5345_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 cs5345_core_ops = {
+ .log_status = cs5345_log_status,
+ .g_chip_ident = cs5345_g_chip_ident,
+ .g_ctrl = cs5345_g_ctrl,
+ .s_ctrl = cs5345_s_ctrl,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+ .g_register = cs5345_g_register,
+ .s_register = cs5345_s_register,
+#endif
+};
+
+static const struct v4l2_subdev_audio_ops cs5345_audio_ops = {
+ .s_routing = cs5345_s_routing,
+};
+
+static const struct v4l2_subdev_ops cs5345_ops = {
+ .core = &cs5345_core_ops,
+ .audio = &cs5345_audio_ops,
+};
/* ----------------------------------------------------------------------- */
static int cs5345_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
+ struct v4l2_subdev *sd;
+
/* Check if the adapter supports the needed features */
if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -EIO;
@@ -152,9 +183,25 @@ static int cs5345_probe(struct i2c_client *client,
v4l_info(client, "chip found @ 0x%x (%s)\n",
client->addr << 1, client->adapter->name);
- cs5345_write(client, 0x02, 0x00);
- cs5345_write(client, 0x04, 0x01);
- cs5345_write(client, 0x09, 0x01);
+ sd = kzalloc(sizeof(struct v4l2_subdev), GFP_KERNEL);
+ if (sd == NULL)
+ return -ENOMEM;
+ v4l2_i2c_subdev_init(sd, client, &cs5345_ops);
+
+ cs5345_write(sd, 0x02, 0x00);
+ cs5345_write(sd, 0x04, 0x01);
+ cs5345_write(sd, 0x09, 0x01);
+ return 0;
+}
+
+/* ----------------------------------------------------------------------- */
+
+static int cs5345_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+ v4l2_device_unregister_subdev(sd);
+ kfree(sd);
return 0;
}
@@ -171,5 +218,6 @@ static struct v4l2_i2c_driver_data v4l2_i2c_data = {
.driverid = I2C_DRIVERID_CS5345,
.command = cs5345_command,
.probe = cs5345_probe,
+ .remove = cs5345_remove,
.id_table = cs5345_id,
};
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 08:30:16 +0100