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V4L/DVB: cs53l32a: convert to new control framework 

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2010-04-23 10:39:25 -03:00 committed by Mauro Carvalho Chehab
parent 5aa9ae5ed5
commit 251190cffa
1 changed files with 68 additions and 39 deletions
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107
drivers/media/video/cs53l32a.c
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@ -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;
}