diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/video/cs5345.c | 87 |
1 files changed, 59 insertions, 28 deletions
diff --git a/drivers/media/video/cs5345.c b/drivers/media/video/cs5345.c index 9358fe77e562..5909f2557ab4 100644 --- a/drivers/media/video/cs5345.c +++ b/drivers/media/video/cs5345.c @@ -25,6 +25,7 @@ #include <linux/slab.h> #include <media/v4l2-device.h> #include <media/v4l2-chip-ident.h> +#include <media/v4l2-ctrls.h> MODULE_DESCRIPTION("i2c device driver for cs5345 Audio ADC"); MODULE_AUTHOR("Hans Verkuil"); @@ -36,6 +37,20 @@ module_param(debug, bool, 0644); MODULE_PARM_DESC(debug, "Debugging messages, 0=Off (default), 1=On"); +struct cs5345_state { + struct v4l2_subdev sd; + struct v4l2_ctrl_handler hdl; +}; + +static inline struct cs5345_state *to_state(struct v4l2_subdev *sd) +{ + return container_of(sd, struct cs5345_state, sd); +} + +static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) +{ + return &container_of(ctrl->handler, struct cs5345_state, hdl)->sd; +} /* ----------------------------------------------------------------------- */ @@ -65,33 +80,20 @@ static int cs5345_s_routing(struct v4l2_subdev *sd, return 0; } -static int cs5345_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +static int cs5345_s_ctrl(struct v4l2_ctrl *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; -} + struct v4l2_subdev *sd = to_sd(ctrl); -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); + switch (ctrl->id) { + case V4L2_CID_AUDIO_MUTE: + cs5345_write(sd, 0x04, ctrl->val ? 0x80 : 0); + return 0; + case V4L2_CID_AUDIO_VOLUME: + cs5345_write(sd, 0x07, ((u8)ctrl->val) & 0x3f); + cs5345_write(sd, 0x08, ((u8)ctrl->val) & 0x3f); 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; + return -EINVAL; } #ifdef CONFIG_VIDEO_ADV_DEBUG @@ -144,11 +146,20 @@ static int cs5345_log_status(struct v4l2_subdev *sd) /* ----------------------------------------------------------------------- */ +static const struct v4l2_ctrl_ops cs5345_ctrl_ops = { + .s_ctrl = cs5345_s_ctrl, +}; + 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, + .g_ext_ctrls = v4l2_subdev_g_ext_ctrls, + .try_ext_ctrls = v4l2_subdev_try_ext_ctrls, + .s_ext_ctrls = v4l2_subdev_s_ext_ctrls, + .g_ctrl = v4l2_subdev_g_ctrl, + .s_ctrl = v4l2_subdev_s_ctrl, + .queryctrl = v4l2_subdev_queryctrl, + .querymenu = v4l2_subdev_querymenu, #ifdef CONFIG_VIDEO_ADV_DEBUG .g_register = cs5345_g_register, .s_register = cs5345_s_register, @@ -169,6 +180,7 @@ static const struct v4l2_subdev_ops cs5345_ops = { static int cs5345_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct cs5345_state *state; struct v4l2_subdev *sd; /* Check if the adapter supports the needed features */ @@ -178,11 +190,28 @@ static int cs5345_probe(struct i2c_client *client, v4l_info(client, "chip found @ 0x%x (%s)\n", client->addr << 1, client->adapter->name); - sd = kzalloc(sizeof(struct v4l2_subdev), GFP_KERNEL); - if (sd == NULL) + state = kzalloc(sizeof(struct cs5345_state), GFP_KERNEL); + if (state == NULL) return -ENOMEM; + sd = &state->sd; v4l2_i2c_subdev_init(sd, client, &cs5345_ops); + v4l2_ctrl_handler_init(&state->hdl, 2); + v4l2_ctrl_new_std(&state->hdl, &cs5345_ctrl_ops, + V4L2_CID_AUDIO_MUTE, 0, 1, 1, 0); + v4l2_ctrl_new_std(&state->hdl, &cs5345_ctrl_ops, + V4L2_CID_AUDIO_VOLUME, -24, 24, 1, 0); + sd->ctrl_handler = &state->hdl; + if (state->hdl.error) { + int err = state->hdl.error; + + v4l2_ctrl_handler_free(&state->hdl); + kfree(state); + return err; + } + /* set volume/mute */ + v4l2_ctrl_handler_setup(&state->hdl); + cs5345_write(sd, 0x02, 0x00); cs5345_write(sd, 0x04, 0x01); cs5345_write(sd, 0x09, 0x01); @@ -194,9 +223,11 @@ static int cs5345_probe(struct i2c_client *client, static int cs5345_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct cs5345_state *state = to_state(sd); v4l2_device_unregister_subdev(sd); - kfree(sd); + v4l2_ctrl_handler_free(&state->hdl); + kfree(state); return 0; } |