forked from Minki/linux
V4L/DVB (9822): cs53l32a: convert to v4l2_subdev.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
dd99120c71
commit
825c6aa2a8
@ -27,7 +27,7 @@
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#include <linux/i2c.h>
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#include <linux/i2c-id.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-chip-ident.h>
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#include <media/v4l2-i2c-drv-legacy.h>
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@ -47,84 +47,104 @@ I2C_CLIENT_INSMOD;
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/* ----------------------------------------------------------------------- */
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static int cs53l32a_write(struct i2c_client *client, u8 reg, u8 value)
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static int cs53l32a_write(struct v4l2_subdev *sd, u8 reg, u8 value)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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return i2c_smbus_write_byte_data(client, reg, value);
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}
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static int cs53l32a_read(struct i2c_client *client, u8 reg)
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static int cs53l32a_read(struct v4l2_subdev *sd, u8 reg)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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return i2c_smbus_read_byte_data(client, reg);
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}
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static int cs53l32a_command(struct i2c_client *client, unsigned cmd, void *arg)
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static int cs53l32a_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
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{
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struct v4l2_routing *route = arg;
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struct v4l2_control *ctrl = arg;
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switch (cmd) {
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case VIDIOC_INT_G_AUDIO_ROUTING:
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route->input = (cs53l32a_read(client, 0x01) >> 4) & 3;
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route->output = 0;
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break;
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case VIDIOC_INT_S_AUDIO_ROUTING:
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/* There are 2 physical inputs, but the second input can be
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placed in two modes, the first mode bypasses the PGA (gain),
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the second goes through the PGA. Hence there are three
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possible inputs to choose from. */
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if (route->input > 2) {
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v4l_err(client, "Invalid input %d.\n", route->input);
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v4l2_err(sd, "Invalid input %d.\n", route->input);
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return -EINVAL;
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}
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cs53l32a_write(client, 0x01, 0x01 + (route->input << 4));
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break;
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cs53l32a_write(sd, 0x01, 0x01 + (route->input << 4));
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return 0;
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}
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case VIDIOC_G_CTRL:
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static int cs53l32a_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
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{
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if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
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ctrl->value = (cs53l32a_read(client, 0x03) & 0xc0) != 0;
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break;
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ctrl->value = (cs53l32a_read(sd, 0x03) & 0xc0) != 0;
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return 0;
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}
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if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
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return -EINVAL;
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ctrl->value = (s8)cs53l32a_read(client, 0x04);
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break;
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ctrl->value = (s8)cs53l32a_read(sd, 0x04);
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return 0;
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}
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case VIDIOC_S_CTRL:
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static int cs53l32a_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
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{
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if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
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cs53l32a_write(client, 0x03, ctrl->value ? 0xf0 : 0x30);
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break;
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cs53l32a_write(sd, 0x03, ctrl->value ? 0xf0 : 0x30);
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return 0;
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}
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if (ctrl->id != V4L2_CID_AUDIO_VOLUME)
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return -EINVAL;
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if (ctrl->value > 12 || ctrl->value < -96)
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return -EINVAL;
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cs53l32a_write(client, 0x04, (u8) ctrl->value);
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cs53l32a_write(client, 0x05, (u8) ctrl->value);
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break;
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case VIDIOC_G_CHIP_IDENT:
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return v4l2_chip_ident_i2c_client(client,
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arg, V4L2_IDENT_CS53l32A, 0);
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case VIDIOC_LOG_STATUS:
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{
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u8 v = cs53l32a_read(client, 0x01);
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u8 m = cs53l32a_read(client, 0x03);
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s8 vol = cs53l32a_read(client, 0x04);
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v4l_info(client, "Input: %d%s\n", (v >> 4) & 3,
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(m & 0xC0) ? " (muted)" : "");
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v4l_info(client, "Volume: %d dB\n", vol);
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break;
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}
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default:
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return -EINVAL;
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}
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cs53l32a_write(sd, 0x04, (u8) ctrl->value);
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cs53l32a_write(sd, 0x05, (u8) ctrl->value);
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return 0;
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}
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static int cs53l32a_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_chip_ident *chip)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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return v4l2_chip_ident_i2c_client(client,
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chip, V4L2_IDENT_CS53l32A, 0);
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}
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static int cs53l32a_log_status(struct v4l2_subdev *sd)
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{
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u8 v = cs53l32a_read(sd, 0x01);
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u8 m = cs53l32a_read(sd, 0x03);
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s8 vol = cs53l32a_read(sd, 0x04);
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v4l2_info(sd, "Input: %d%s\n", (v >> 4) & 3,
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(m & 0xC0) ? " (muted)" : "");
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v4l2_info(sd, "Volume: %d dB\n", vol);
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return 0;
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}
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static int cs53l32a_command(struct i2c_client *client, unsigned cmd, void *arg)
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{
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return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
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}
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/* ----------------------------------------------------------------------- */
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static const struct v4l2_subdev_core_ops cs53l32a_core_ops = {
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.log_status = cs53l32a_log_status,
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.g_chip_ident = cs53l32a_g_chip_ident,
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.g_ctrl = cs53l32a_g_ctrl,
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.s_ctrl = cs53l32a_s_ctrl,
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};
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static const struct v4l2_subdev_audio_ops cs53l32a_audio_ops = {
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.s_routing = cs53l32a_s_routing,
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};
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static const struct v4l2_subdev_ops cs53l32a_ops = {
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.core = &cs53l32a_core_ops,
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.audio = &cs53l32a_audio_ops,
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};
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/* ----------------------------------------------------------------------- */
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/* i2c implementation */
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@ -137,6 +157,7 @@ static int cs53l32a_command(struct i2c_client *client, unsigned cmd, void *arg)
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static int cs53l32a_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct v4l2_subdev *sd;
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int i;
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/* Check if the adapter supports the needed features */
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@ -149,32 +170,46 @@ static int cs53l32a_probe(struct i2c_client *client,
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v4l_info(client, "chip found @ 0x%x (%s)\n",
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client->addr << 1, client->adapter->name);
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for (i = 1; i <= 7; i++) {
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u8 v = cs53l32a_read(client, i);
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sd = kmalloc(sizeof(struct v4l2_subdev), GFP_KERNEL);
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if (sd == NULL)
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return -ENOMEM;
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v4l2_i2c_subdev_init(sd, client, &cs53l32a_ops);
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v4l_dbg(1, debug, client, "Read Reg %d %02x\n", i, v);
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for (i = 1; i <= 7; i++) {
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u8 v = cs53l32a_read(sd, i);
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v4l2_dbg(1, debug, sd, "Read Reg %d %02x\n", i, v);
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}
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/* Set cs53l32a internal register for Adaptec 2010/2410 setup */
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cs53l32a_write(client, 0x01, (u8) 0x21);
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cs53l32a_write(client, 0x02, (u8) 0x29);
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cs53l32a_write(client, 0x03, (u8) 0x30);
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cs53l32a_write(client, 0x04, (u8) 0x00);
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cs53l32a_write(client, 0x05, (u8) 0x00);
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cs53l32a_write(client, 0x06, (u8) 0x00);
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cs53l32a_write(client, 0x07, (u8) 0x00);
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cs53l32a_write(sd, 0x01, (u8) 0x21);
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cs53l32a_write(sd, 0x02, (u8) 0x29);
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cs53l32a_write(sd, 0x03, (u8) 0x30);
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cs53l32a_write(sd, 0x04, (u8) 0x00);
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cs53l32a_write(sd, 0x05, (u8) 0x00);
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cs53l32a_write(sd, 0x06, (u8) 0x00);
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cs53l32a_write(sd, 0x07, (u8) 0x00);
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/* Display results, should be 0x21,0x29,0x30,0x00,0x00,0x00,0x00 */
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for (i = 1; i <= 7; i++) {
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u8 v = cs53l32a_read(client, i);
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u8 v = cs53l32a_read(sd, i);
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v4l_dbg(1, debug, client, "Read Reg %d %02x\n", i, v);
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v4l2_dbg(1, debug, sd, "Read Reg %d %02x\n", i, v);
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}
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return 0;
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}
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static int cs53l32a_remove(struct i2c_client *client)
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{
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struct v4l2_subdev *sd = i2c_get_clientdata(client);
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v4l2_device_unregister_subdev(sd);
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kfree(sd);
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return 0;
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}
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static const struct i2c_device_id cs53l32a_id[] = {
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{ "cs53l32a", 0 },
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{ }
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@ -185,6 +220,7 @@ static struct v4l2_i2c_driver_data v4l2_i2c_data = {
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.name = "cs53l32a",
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.driverid = I2C_DRIVERID_CS53L32A,
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.command = cs53l32a_command,
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.remove = cs53l32a_remove,
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.probe = cs53l32a_probe,
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.id_table = cs53l32a_id,
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};
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