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https://github.com/edk2-porting/linux-next.git
synced 2024-12-20 11:13:58 +08:00
V4L/DVB (9967): cs5345: convert to v4l2_subdev and fix broken s_ctrl.
Converted to v4l2_subdev. While doing that I also discovered a stray 'break' that broke the S_CTRL handling. Fixed that as well. 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
12f91a3fac
commit
b3ee7e21f2
@ -23,9 +23,9 @@
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#include <linux/kernel.h>
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#include <linux/i2c.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-i2c-drv.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.h>
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MODULE_DESCRIPTION("i2c device driver for cs5345 Audio ADC");
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MODULE_AUTHOR("Hans Verkuil");
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@ -40,111 +40,143 @@ MODULE_PARM_DESC(debug, "Debugging messages, 0=Off (default), 1=On");
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/* ----------------------------------------------------------------------- */
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static inline int cs5345_write(struct i2c_client *client, u8 reg, u8 value)
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static inline int cs5345_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 inline int cs5345_read(struct i2c_client *client, u8 reg)
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static inline int cs5345_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 cs5345_s_routing(struct v4l2_subdev *sd, const struct v4l2_routing *route)
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{
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if ((route->input & 0xf) > 6) {
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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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cs5345_write(sd, 0x09, route->input & 0xf);
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cs5345_write(sd, 0x05, route->input & 0xf0);
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return 0;
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}
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static int cs5345_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 = (cs5345_read(sd, 0x04) & 0x08) != 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 = cs5345_read(sd, 0x07) & 0x3f;
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if (ctrl->value >= 32)
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ctrl->value = ctrl->value - 64;
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return 0;
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}
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static int cs5345_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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cs5345_write(sd, 0x04, ctrl->value ? 0x80 : 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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if (ctrl->value > 24 || ctrl->value < -24)
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return -EINVAL;
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cs5345_write(sd, 0x07, ((u8)ctrl->value) & 0x3f);
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cs5345_write(sd, 0x08, ((u8)ctrl->value) & 0x3f);
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return 0;
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}
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#ifdef CONFIG_VIDEO_ADV_DEBUG
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static int cs5345_g_register(struct v4l2_subdev *sd, struct v4l2_register *reg)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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if (!v4l2_chip_match_i2c_client(client,
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reg->match_type, reg->match_chip))
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return -EINVAL;
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if (!capable(CAP_SYS_ADMIN))
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return -EPERM;
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reg->val = cs5345_read(sd, reg->reg & 0x1f);
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return 0;
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}
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static int cs5345_s_register(struct v4l2_subdev *sd, struct v4l2_register *reg)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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if (!v4l2_chip_match_i2c_client(client,
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reg->match_type, reg->match_chip))
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return -EINVAL;
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if (!capable(CAP_SYS_ADMIN))
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return -EPERM;
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cs5345_write(sd, reg->reg & 0x1f, reg->val & 0xff);
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return 0;
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}
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#endif
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static int cs5345_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, chip, V4L2_IDENT_CS5345, 0);
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}
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static int cs5345_log_status(struct v4l2_subdev *sd)
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{
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u8 v = cs5345_read(sd, 0x09) & 7;
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u8 m = cs5345_read(sd, 0x04);
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int vol = cs5345_read(sd, 0x08) & 0x3f;
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v4l2_info(sd, "Input: %d%s\n", v,
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(m & 0x80) ? " (muted)" : "");
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if (vol >= 32)
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vol = vol - 64;
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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 cs5345_command(struct i2c_client *client, unsigned cmd, void *arg)
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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 = cs5345_read(client, 0x09) & 7;
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route->input |= cs5345_read(client, 0x05) & 0x70;
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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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if ((route->input & 0xf) > 6) {
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v4l_err(client, "Invalid input %d.\n", route->input);
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return -EINVAL;
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}
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cs5345_write(client, 0x09, route->input & 0xf);
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cs5345_write(client, 0x05, route->input & 0xf0);
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break;
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case VIDIOC_G_CTRL:
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if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
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ctrl->value = (cs5345_read(client, 0x04) & 0x08) != 0;
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break;
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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 = cs5345_read(client, 0x07) & 0x3f;
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if (ctrl->value >= 32)
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ctrl->value = ctrl->value - 64;
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break;
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case VIDIOC_S_CTRL:
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break;
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if (ctrl->id == V4L2_CID_AUDIO_MUTE) {
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cs5345_write(client, 0x04, ctrl->value ? 0x80 : 0);
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break;
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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 > 24 || ctrl->value < -24)
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return -EINVAL;
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cs5345_write(client, 0x07, ((u8)ctrl->value) & 0x3f);
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cs5345_write(client, 0x08, ((u8)ctrl->value) & 0x3f);
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break;
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#ifdef CONFIG_VIDEO_ADV_DEBUG
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case VIDIOC_DBG_G_REGISTER:
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case VIDIOC_DBG_S_REGISTER:
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{
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struct v4l2_register *reg = arg;
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if (!v4l2_chip_match_i2c_client(client,
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reg->match_type, reg->match_chip))
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return -EINVAL;
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if (!capable(CAP_SYS_ADMIN))
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return -EPERM;
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if (cmd == VIDIOC_DBG_G_REGISTER)
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reg->val = cs5345_read(client, reg->reg & 0x1f);
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else
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cs5345_write(client, reg->reg & 0x1f, reg->val & 0xff);
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break;
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}
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#endif
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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_CS5345, 0);
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case VIDIOC_LOG_STATUS:
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{
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u8 v = cs5345_read(client, 0x09) & 7;
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u8 m = cs5345_read(client, 0x04);
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int vol = cs5345_read(client, 0x08) & 0x3f;
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v4l_info(client, "Input: %d%s\n", v,
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(m & 0x80) ? " (muted)" : "");
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if (vol >= 32)
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vol = vol - 64;
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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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return 0;
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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 cs5345_core_ops = {
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.log_status = cs5345_log_status,
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.g_chip_ident = cs5345_g_chip_ident,
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.g_ctrl = cs5345_g_ctrl,
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.s_ctrl = cs5345_s_ctrl,
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#ifdef CONFIG_VIDEO_ADV_DEBUG
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.g_register = cs5345_g_register,
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.s_register = cs5345_s_register,
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#endif
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};
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static const struct v4l2_subdev_audio_ops cs5345_audio_ops = {
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.s_routing = cs5345_s_routing,
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};
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static const struct v4l2_subdev_ops cs5345_ops = {
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.core = &cs5345_core_ops,
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.audio = &cs5345_audio_ops,
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};
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/* ----------------------------------------------------------------------- */
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static int cs5345_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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/* Check if the adapter supports the needed features */
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if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
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return -EIO;
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@ -152,9 +184,25 @@ static int cs5345_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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cs5345_write(client, 0x02, 0x00);
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cs5345_write(client, 0x04, 0x01);
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cs5345_write(client, 0x09, 0x01);
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sd = kzalloc(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, &cs5345_ops);
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cs5345_write(sd, 0x02, 0x00);
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cs5345_write(sd, 0x04, 0x01);
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cs5345_write(sd, 0x09, 0x01);
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return 0;
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}
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/* ----------------------------------------------------------------------- */
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static int cs5345_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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@ -171,5 +219,6 @@ static struct v4l2_i2c_driver_data v4l2_i2c_data = {
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.driverid = I2C_DRIVERID_CS5345,
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.command = cs5345_command,
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.probe = cs5345_probe,
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.remove = cs5345_remove,
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.id_table = cs5345_id,
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};
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