#include <linux/i2c.h>
#include <linux/i2c-id.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-legacy.h>
/* ----------------------------------------------------------------------- */
-static int cs53l32a_write(struct i2c_client *client, u8 reg, u8 value)
+static int cs53l32a_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 int cs53l32a_read(struct i2c_client *client, u8 reg)
+static int cs53l32a_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 cs53l32a_command(struct i2c_client *client, unsigned cmd, void *arg)
+static int cs53l32a_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 = (cs53l32a_read(client, 0x01) >> 4) & 3;
- route->output = 0;
- break;
-
- case VIDIOC_INT_S_AUDIO_ROUTING:
- /* There are 2 physical inputs, but the second input can be
- placed in two modes, the first mode bypasses the PGA (gain),
- the second goes through the PGA. Hence there are three
- possible inputs to choose from. */
- if (route->input > 2) {
- v4l_err(client, "Invalid input %d.\n", route->input);
- return -EINVAL;
- }
- cs53l32a_write(client, 0x01, 0x01 + (route->input << 4));
- break;
-
- case VIDIOC_G_CTRL:
- if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
- ctrl->value = (cs53l32a_read(client, 0x03) & 0xc0) != 0;
- break;
- }
- if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
- return -EINVAL;
- ctrl->value = (s8)cs53l32a_read(client, 0x04);
- break;
-
- case VIDIOC_S_CTRL:
- if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
- cs53l32a_write(client, 0x03, ctrl->value ? 0xf0 : 0x30);
- break;
- }
- if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
- return -EINVAL;
- if (ctrl->value > 12 || ctrl->value < -96)
- return -EINVAL;
- cs53l32a_write(client, 0x04, (u8) ctrl->value);
- cs53l32a_write(client, 0x05, (u8) ctrl->value);
- break;
-
- case VIDIOC_G_CHIP_IDENT:
- return v4l2_chip_ident_i2c_client(client,
- arg, V4L2_IDENT_CS53l32A, 0);
-
- case VIDIOC_LOG_STATUS:
- {
- u8 v = cs53l32a_read(client, 0x01);
- u8 m = cs53l32a_read(client, 0x03);
- s8 vol = cs53l32a_read(client, 0x04);
-
- v4l_info(client, "Input: %d%s\n", (v >> 4) & 3,
- (m & 0xC0) ? " (muted)" : "");
- v4l_info(client, "Volume: %d dB\n", vol);
- break;
- }
-
- default:
+ /* There are 2 physical inputs, but the second input can be
+ placed in two modes, the first mode bypasses the PGA (gain),
+ the second goes through the PGA. Hence there are three
+ possible inputs to choose from. */
+ if (route->input > 2) {
+ v4l2_err(sd, "Invalid input %d.\n", route->input);
return -EINVAL;
}
+ cs53l32a_write(sd, 0x01, 0x01 + (route->input << 4));
+ return 0;
+}
+
+static int cs53l32a_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
+ ctrl->value = (cs53l32a_read(sd, 0x03) & 0xc0) != 0;
+ return 0;
+ }
+ if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
+ return -EINVAL;
+ ctrl->value = (s8)cs53l32a_read(sd, 0x04);
+ return 0;
+}
+
+static int cs53l32a_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
+{
+ if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
+ cs53l32a_write(sd, 0x03, ctrl->value ? 0xf0 : 0x30);
+ return 0;
+ }
+ if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
+ return -EINVAL;
+ if (ctrl->value > 12 || ctrl->value < -96)
+ return -EINVAL;
+ cs53l32a_write(sd, 0x04, (u8) ctrl->value);
+ cs53l32a_write(sd, 0x05, (u8) ctrl->value);
return 0;
}
+static int cs53l32a_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_CS53l32A, 0);
+}
+
+static int cs53l32a_log_status(struct v4l2_subdev *sd)
+{
+ u8 v = cs53l32a_read(sd, 0x01);
+ u8 m = cs53l32a_read(sd, 0x03);
+ s8 vol = cs53l32a_read(sd, 0x04);
+
+ v4l2_info(sd, "Input: %d%s\n", (v >> 4) & 3,
+ (m & 0xC0) ? " (muted)" : "");
+ v4l2_info(sd, "Volume: %d dB\n", vol);
+ return 0;
+}
+
+static int cs53l32a_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 cs53l32a_core_ops = {
+ .log_status = cs53l32a_log_status,
+ .g_chip_ident = cs53l32a_g_chip_ident,
+ .g_ctrl = cs53l32a_g_ctrl,
+ .s_ctrl = cs53l32a_s_ctrl,
+};
+
+static const struct v4l2_subdev_audio_ops cs53l32a_audio_ops = {
+ .s_routing = cs53l32a_s_routing,
+};
+
+static const struct v4l2_subdev_ops cs53l32a_ops = {
+ .core = &cs53l32a_core_ops,
+ .audio = &cs53l32a_audio_ops,
+};
+
/* ----------------------------------------------------------------------- */
/* i2c implementation */
static int cs53l32a_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
+ struct v4l2_subdev *sd;
int i;
/* Check if the adapter supports the needed features */
v4l_info(client, "chip found @ 0x%x (%s)\n",
client->addr << 1, client->adapter->name);
+ sd = kmalloc(sizeof(struct v4l2_subdev), GFP_KERNEL);
+ if (sd == NULL)
+ return -ENOMEM;
+ v4l2_i2c_subdev_init(sd, client, &cs53l32a_ops);
+
for (i = 1; i <= 7; i++) {
- u8 v = cs53l32a_read(client, i);
+ u8 v = cs53l32a_read(sd, i);
- v4l_dbg(1, debug, client, "Read Reg %d %02x\n", i, v);
+ v4l2_dbg(1, debug, sd, "Read Reg %d %02x\n", i, v);
}
/* Set cs53l32a internal register for Adaptec 2010/2410 setup */
- cs53l32a_write(client, 0x01, (u8) 0x21);
- cs53l32a_write(client, 0x02, (u8) 0x29);
- cs53l32a_write(client, 0x03, (u8) 0x30);
- cs53l32a_write(client, 0x04, (u8) 0x00);
- cs53l32a_write(client, 0x05, (u8) 0x00);
- cs53l32a_write(client, 0x06, (u8) 0x00);
- cs53l32a_write(client, 0x07, (u8) 0x00);
+ cs53l32a_write(sd, 0x01, (u8) 0x21);
+ cs53l32a_write(sd, 0x02, (u8) 0x29);
+ cs53l32a_write(sd, 0x03, (u8) 0x30);
+ cs53l32a_write(sd, 0x04, (u8) 0x00);
+ cs53l32a_write(sd, 0x05, (u8) 0x00);
+ cs53l32a_write(sd, 0x06, (u8) 0x00);
+ cs53l32a_write(sd, 0x07, (u8) 0x00);
/* Display results, should be 0x21,0x29,0x30,0x00,0x00,0x00,0x00 */
for (i = 1; i <= 7; i++) {
- u8 v = cs53l32a_read(client, i);
+ u8 v = cs53l32a_read(sd, i);
- v4l_dbg(1, debug, client, "Read Reg %d %02x\n", i, v);
+ v4l2_dbg(1, debug, sd, "Read Reg %d %02x\n", i, v);
}
return 0;
}
+static int cs53l32a_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+
+ v4l2_device_unregister_subdev(sd);
+ kfree(sd);
+ return 0;
+}
+
static const struct i2c_device_id cs53l32a_id[] = {
{ "cs53l32a", 0 },
{ }
.name = "cs53l32a",
.driverid = I2C_DRIVERID_CS53L32A,
.command = cs53l32a_command,
+ .remove = cs53l32a_remove,
.probe = cs53l32a_probe,
.id_table = cs53l32a_id,
};
projects / deliverable / linux.git / blobdiff