diff options
Diffstat (limited to 'drivers/media/video/cs53l32a.c')
| -rw-r--r-- | drivers/media/video/cs53l32a.c | 107 |
1 files changed, 68 insertions, 39 deletions
diff --git a/drivers/media/video/cs53l32a.c b/drivers/media/video/cs53l32a.c index 3cc135a98d82..cc9e84d75ea7 100644 --- a/drivers/media/video/cs53l32a.c +++ b/drivers/media/video/cs53l32a.c @@ -26,10 +26,10 @@ #include <linux/ioctl.h> #include <asm/uaccess.h> #include <linux/i2c.h> -#include <linux/i2c-id.h> #include <linux/videodev2.h> #include <media/v4l2-device.h> #include <media/v4l2-chip-ident.h> +#include <media/v4l2-ctrls.h> #include <media/v4l2-i2c-drv.h> MODULE_DESCRIPTION("i2c device driver for cs53l32a Audio ADC"); @@ -43,6 +43,21 @@ module_param(debug, bool, 0644); MODULE_PARM_DESC(debug, "Debugging messages, 0=Off (default), 1=On"); +struct cs53l32a_state { + struct v4l2_subdev sd; + struct v4l2_ctrl_handler hdl; +}; + +static inline struct cs53l32a_state *to_state(struct v4l2_subdev *sd) +{ + return container_of(sd, struct cs53l32a_state, sd); +} + +static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl) +{ + return &container_of(ctrl->handler, struct cs53l32a_state, hdl)->sd; +} + /* ----------------------------------------------------------------------- */ static int cs53l32a_write(struct v4l2_subdev *sd, u8 reg, u8 value) @@ -74,31 +89,20 @@ static int cs53l32a_s_routing(struct v4l2_subdev *sd, return 0; } -static int cs53l32a_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +static int cs53l32a_s_ctrl(struct v4l2_ctrl *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; -} + struct v4l2_subdev *sd = to_sd(ctrl); -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); + switch (ctrl->id) { + case V4L2_CID_AUDIO_MUTE: + cs53l32a_write(sd, 0x03, ctrl->val ? 0xf0 : 0x30); + return 0; + case V4L2_CID_AUDIO_VOLUME: + cs53l32a_write(sd, 0x04, (u8)ctrl->val); + cs53l32a_write(sd, 0x05, (u8)ctrl->val); 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; + return -EINVAL; } static int cs53l32a_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip) @@ -111,23 +115,30 @@ static int cs53l32a_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_id static int cs53l32a_log_status(struct v4l2_subdev *sd) { + struct cs53l32a_state *state = to_state(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); + v4l2_info(sd, "Input: %d\n", (v >> 4) & 3); + v4l2_ctrl_handler_log_status(&state->hdl, sd->name); return 0; } /* ----------------------------------------------------------------------- */ +static const struct v4l2_ctrl_ops cs53l32a_ctrl_ops = { + .s_ctrl = cs53l32a_s_ctrl, +}; + 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, + .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, }; static const struct v4l2_subdev_audio_ops cs53l32a_audio_ops = { @@ -151,6 +162,7 @@ static const struct v4l2_subdev_ops cs53l32a_ops = { static int cs53l32a_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct cs53l32a_state *state; struct v4l2_subdev *sd; int i; @@ -164,9 +176,10 @@ static int cs53l32a_probe(struct i2c_client *client, 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) + state = kzalloc(sizeof(struct cs53l32a_state), GFP_KERNEL); + if (state == NULL) return -ENOMEM; + sd = &state->sd; v4l2_i2c_subdev_init(sd, client, &cs53l32a_ops); for (i = 1; i <= 7; i++) { @@ -175,15 +188,29 @@ static int cs53l32a_probe(struct i2c_client *client, v4l2_dbg(1, debug, sd, "Read Reg %d %02x\n", i, v); } + v4l2_ctrl_handler_init(&state->hdl, 2); + v4l2_ctrl_new_std(&state->hdl, &cs53l32a_ctrl_ops, + V4L2_CID_AUDIO_VOLUME, -96, 12, 1, 0); + v4l2_ctrl_new_std(&state->hdl, &cs53l32a_ctrl_ops, + V4L2_CID_AUDIO_MUTE, 0, 1, 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 cs53l32a internal register for Adaptec 2010/2410 setup */ - 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); + cs53l32a_write(sd, 0x01, 0x21); + cs53l32a_write(sd, 0x02, 0x29); + cs53l32a_write(sd, 0x03, 0x30); + cs53l32a_write(sd, 0x04, 0x00); + cs53l32a_write(sd, 0x05, 0x00); + cs53l32a_write(sd, 0x06, 0x00); + cs53l32a_write(sd, 0x07, 0x00); /* Display results, should be 0x21,0x29,0x30,0x00,0x00,0x00,0x00 */ @@ -198,9 +225,11 @@ static int cs53l32a_probe(struct i2c_client *client, static int cs53l32a_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct cs53l32a_state *state = to_state(sd); v4l2_device_unregister_subdev(sd); - kfree(sd); + v4l2_ctrl_handler_free(&state->hdl); + kfree(state); return 0; } |