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[media] adv7180.c: convert to v4l2 control framework 

[mchehab@redhat.com: fix checkpatch.pl ERROR:
 Macros with complex values should be enclosed in parenthesis]

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Federico Vaga 2012-07-11 11:29:33 -03:00 committed by Mauro Carvalho Chehab
parent 16d18b16ac
commit c9fbedddc2
1 changed files with 84 additions and 151 deletions
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235
drivers/media/video/adv7180.c
View File

@ -26,11 +26,10 @@
#include <media/v4l2-ioctl.h>
#include <linux/videodev2.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-chip-ident.h>
#include <linux/mutex.h>
#define DRIVER_NAME "adv7180"
#define ADV7180_INPUT_CONTROL_REG 0x00
#define ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM 0x00
#define ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM_PED 0x10
@ -55,21 +54,21 @@
#define ADV7180_AUTODETECT_ENABLE_REG 0x07
#define ADV7180_AUTODETECT_DEFAULT 0x7f
/* Contrast */
#define ADV7180_CON_REG 0x08 /*Unsigned */
#define CON_REG_MIN 0
#define CON_REG_DEF 128
#define CON_REG_MAX 255
#define ADV7180_CON_MIN 0
#define ADV7180_CON_DEF 128
#define ADV7180_CON_MAX 255
/* Brightness*/
#define ADV7180_BRI_REG 0x0a /*Signed */
#define BRI_REG_MIN -128
#define BRI_REG_DEF 0
#define BRI_REG_MAX 127
#define ADV7180_BRI_MIN -128
#define ADV7180_BRI_DEF 0
#define ADV7180_BRI_MAX 127
/* Hue */
#define ADV7180_HUE_REG 0x0b /*Signed, inverted */
#define HUE_REG_MIN -127
#define HUE_REG_DEF 0
#define HUE_REG_MAX 128
#define ADV7180_HUE_MIN -127
#define ADV7180_HUE_DEF 0
#define ADV7180_HUE_MAX 128
#define ADV7180_ADI_CTRL_REG 0x0e
#define ADV7180_ADI_CTRL_IRQ_SPACE 0x20
@ -98,12 +97,12 @@
#define ADV7180_ICONF1_ACTIVE_LOW 0x01
#define ADV7180_ICONF1_PSYNC_ONLY 0x10
#define ADV7180_ICONF1_ACTIVE_TO_CLR 0xC0
/* Saturation */
#define ADV7180_SD_SAT_CB_REG 0xe3 /*Unsigned */
#define ADV7180_SD_SAT_CR_REG 0xe4 /*Unsigned */
#define SAT_REG_MIN 0
#define SAT_REG_DEF 128
#define SAT_REG_MAX 255
#define ADV7180_SAT_MIN 0
#define ADV7180_SAT_DEF 128
#define ADV7180_SAT_MAX 255
#define ADV7180_IRQ1_LOCK 0x01
#define ADV7180_IRQ1_UNLOCK 0x02
@ -121,18 +120,18 @@
#define ADV7180_NTSC_V_BIT_END_MANUAL_NVEND 0x4F
struct adv7180_state {
struct v4l2_ctrl_handler ctrl_hdl;
struct v4l2_subdev sd;
struct work_struct work;
struct mutex mutex; /* mutual excl. when accessing chip */
int irq;
v4l2_std_id curr_norm;
bool autodetect;
s8 brightness;
s16 hue;
u8 contrast;
u8 saturation;
u8 input;
};
#define to_adv7180_sd(_ctrl) (&container_of(_ctrl->handler, \
struct adv7180_state, \
ctrl_hdl)->sd)
static v4l2_std_id adv7180_std_to_v4l2(u8 status1)
{
@ -237,7 +236,7 @@ static int adv7180_s_routing(struct v4l2_subdev *sd, u32 input,
if (ret)
return ret;
/*We cannot discriminate between LQFP and 40-pin LFCSP, so accept
/* We cannot discriminate between LQFP and 40-pin LFCSP, so accept
* all inputs and let the card driver take care of validation
*/
if ((input & ADV7180_INPUT_CONTROL_INSEL_MASK) != input)
@ -316,117 +315,39 @@ out:
return ret;
}
static int adv7180_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
{
switch (qc->id) {
case V4L2_CID_BRIGHTNESS:
return v4l2_ctrl_query_fill(qc, BRI_REG_MIN, BRI_REG_MAX,
1, BRI_REG_DEF);
case V4L2_CID_HUE:
return v4l2_ctrl_query_fill(qc, HUE_REG_MIN, HUE_REG_MAX,
1, HUE_REG_DEF);
case V4L2_CID_CONTRAST:
return v4l2_ctrl_query_fill(qc, CON_REG_MIN, CON_REG_MAX,
1, CON_REG_DEF);
case V4L2_CID_SATURATION:
return v4l2_ctrl_query_fill(qc, SAT_REG_MIN, SAT_REG_MAX,
1, SAT_REG_DEF);
default:
break;
}
return -EINVAL;
}
static int adv7180_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
struct adv7180_state *state = to_state(sd);
int ret = mutex_lock_interruptible(&state->mutex);
if (ret)
return ret;
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
ctrl->value = state->brightness;
break;
case V4L2_CID_HUE:
ctrl->value = state->hue;
break;
case V4L2_CID_CONTRAST:
ctrl->value = state->contrast;
break;
case V4L2_CID_SATURATION:
ctrl->value = state->saturation;
break;
default:
ret = -EINVAL;
}
mutex_unlock(&state->mutex);
return ret;
}
static int adv7180_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
static int adv7180_s_ctrl(struct v4l2_ctrl *ctrl)
{
struct v4l2_subdev *sd = to_adv7180_sd(ctrl);
struct adv7180_state *state = to_state(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret = mutex_lock_interruptible(&state->mutex);
int val;
if (ret)
return ret;
val = ctrl->val;
switch (ctrl->id) {
case V4L2_CID_BRIGHTNESS:
if ((ctrl->value > BRI_REG_MAX)
|| (ctrl->value < BRI_REG_MIN)) {
ret = -ERANGE;
break;
}
state->brightness = ctrl->value;
ret = i2c_smbus_write_byte_data(client,
ADV7180_BRI_REG,
state->brightness);
ret = i2c_smbus_write_byte_data(client, ADV7180_BRI_REG, val);
break;
case V4L2_CID_HUE:
if ((ctrl->value > HUE_REG_MAX)
|| (ctrl->value < HUE_REG_MIN)) {
ret = -ERANGE;
break;
}
state->hue = ctrl->value;
/*Hue is inverted according to HSL chart */
ret = i2c_smbus_write_byte_data(client,
ADV7180_HUE_REG, -state->hue);
ret = i2c_smbus_write_byte_data(client, ADV7180_HUE_REG, -val);
break;
case V4L2_CID_CONTRAST:
if ((ctrl->value > CON_REG_MAX)
|| (ctrl->value < CON_REG_MIN)) {
ret = -ERANGE;
break;
}
state->contrast = ctrl->value;
ret = i2c_smbus_write_byte_data(client,
ADV7180_CON_REG,
state->contrast);
ret = i2c_smbus_write_byte_data(client, ADV7180_CON_REG, val);
break;
case V4L2_CID_SATURATION:
if ((ctrl->value > SAT_REG_MAX)
|| (ctrl->value < SAT_REG_MIN)) {
ret = -ERANGE;
break;
}
/*
*This could be V4L2_CID_BLUE_BALANCE/V4L2_CID_RED_BALANCE
*Let's not confuse the user, everybody understands saturation
*/
state->saturation = ctrl->value;
ret = i2c_smbus_write_byte_data(client,
ADV7180_SD_SAT_CB_REG,
state->saturation);
ret = i2c_smbus_write_byte_data(client, ADV7180_SD_SAT_CB_REG,
val);
if (ret < 0)
break;
ret = i2c_smbus_write_byte_data(client,
ADV7180_SD_SAT_CR_REG,
state->saturation);
ret = i2c_smbus_write_byte_data(client, ADV7180_SD_SAT_CR_REG,
val);
break;
default:
ret = -EINVAL;
@ -436,6 +357,42 @@ static int adv7180_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
return ret;
}
static const struct v4l2_ctrl_ops adv7180_ctrl_ops = {
.s_ctrl = adv7180_s_ctrl,
};
static int adv7180_init_controls(struct adv7180_state *state)
{
v4l2_ctrl_handler_init(&state->ctrl_hdl, 4);
v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
V4L2_CID_BRIGHTNESS, ADV7180_BRI_MIN,
ADV7180_BRI_MAX, 1, ADV7180_BRI_DEF);
v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
V4L2_CID_CONTRAST, ADV7180_CON_MIN,
ADV7180_CON_MAX, 1, ADV7180_CON_DEF);
v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
V4L2_CID_SATURATION, ADV7180_SAT_MIN,
ADV7180_SAT_MAX, 1, ADV7180_SAT_DEF);
v4l2_ctrl_new_std(&state->ctrl_hdl, &adv7180_ctrl_ops,
V4L2_CID_HUE, ADV7180_HUE_MIN,
ADV7180_HUE_MAX, 1, ADV7180_HUE_DEF);
state->sd.ctrl_handler = &state->ctrl_hdl;
if (state->ctrl_hdl.error) {
int err = state->ctrl_hdl.error;
v4l2_ctrl_handler_free(&state->ctrl_hdl);
return err;
}
v4l2_ctrl_handler_setup(&state->ctrl_hdl);
return 0;
}
static void adv7180_exit_controls(struct adv7180_state *state)
{
v4l2_ctrl_handler_free(&state->ctrl_hdl);
}
static const struct v4l2_subdev_video_ops adv7180_video_ops = {
.querystd = adv7180_querystd,
.g_input_status = adv7180_g_input_status,
@ -445,9 +402,9 @@ static const struct v4l2_subdev_video_ops adv7180_video_ops = {
static const struct v4l2_subdev_core_ops adv7180_core_ops = {
.g_chip_ident = adv7180_g_chip_ident,
.s_std = adv7180_s_std,
.queryctrl = adv7180_queryctrl,
.g_ctrl = adv7180_g_ctrl,
.s_ctrl = adv7180_s_ctrl,
.queryctrl = v4l2_subdev_queryctrl,
.g_ctrl = v4l2_subdev_g_ctrl,
.s_ctrl = v4l2_subdev_s_ctrl,
};
static const struct v4l2_subdev_ops adv7180_ops = {
@ -539,7 +496,7 @@ static int init_device(struct i2c_client *client, struct adv7180_state *state)
/* register for interrupts */
if (state->irq > 0) {
ret = request_irq(state->irq, adv7180_irq, 0, DRIVER_NAME,
ret = request_irq(state->irq, adv7180_irq, 0, KBUILD_MODNAME,
state);
if (ret)
return ret;
@ -580,31 +537,6 @@ static int init_device(struct i2c_client *client, struct adv7180_state *state)
return ret;
}
/*Set default value for controls */
ret = i2c_smbus_write_byte_data(client, ADV7180_BRI_REG,
state->brightness);
if (ret < 0)
return ret;
ret = i2c_smbus_write_byte_data(client, ADV7180_HUE_REG, state->hue);
if (ret < 0)
return ret;
ret = i2c_smbus_write_byte_data(client, ADV7180_CON_REG,
state->contrast);
if (ret < 0)
return ret;
ret = i2c_smbus_write_byte_data(client, ADV7180_SD_SAT_CB_REG,
state->saturation);
if (ret < 0)
return ret;
ret = i2c_smbus_write_byte_data(client, ADV7180_SD_SAT_CR_REG,
state->saturation);
if (ret < 0)
return ret;
return 0;
}
@ -632,25 +564,26 @@ static __devinit int adv7180_probe(struct i2c_client *client,
INIT_WORK(&state->work, adv7180_work);
mutex_init(&state->mutex);
state->autodetect = true;
state->brightness = BRI_REG_DEF;
state->hue = HUE_REG_DEF;
state->contrast = CON_REG_DEF;
state->saturation = SAT_REG_DEF;
state->input = 0;
sd = &state->sd;
v4l2_i2c_subdev_init(sd, client, &adv7180_ops);
ret = init_device(client, state);
if (0 != ret)
ret = adv7180_init_controls(state);
if (ret)
goto err_unreg_subdev;
ret = init_device(client, state);
if (ret)
goto err_free_ctrl;
return 0;
err_free_ctrl:
adv7180_exit_controls(state);
err_unreg_subdev:
mutex_destroy(&state->mutex);
v4l2_device_unregister_subdev(sd);
kfree(state);
err:
printk(KERN_ERR DRIVER_NAME ": Failed to probe: %d\n", ret);
printk(KERN_ERR KBUILD_MODNAME ": Failed to probe: %d\n", ret);
return ret;
}
@ -678,7 +611,7 @@ static __devexit int adv7180_remove(struct i2c_client *client)
}
static const struct i2c_device_id adv7180_id[] = {
{DRIVER_NAME, 0},
{KBUILD_MODNAME, 0},
{},
};
@ -716,7 +649,7 @@ MODULE_DEVICE_TABLE(i2c, adv7180_id);
static struct i2c_driver adv7180_driver = {
.driver = {
.owner = THIS_MODULE,
.name = DRIVER_NAME,
.name = KBUILD_MODNAME,
},
.probe = adv7180_probe,
.remove = __devexit_p(adv7180_remove),