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[media] adv7180: add support to user controls

Browse source 
Video user controls such as brightness, contrast, saturation, and
hue are now handled.

Signed-off-by: Federico Vaga <federico.vaga@gmail.com>
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Richard Röjfors <richard.rojfors.ext@mocean-labs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Federico Vaga 2012-04-12 12:39:36 -03:00 committed by Mauro Carvalho Chehab
parent f27b853ea2
commit bca7ad1a33
1 changed files with 366 additions and 83 deletions
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427
drivers/media/video/adv7180.c
View file

@ -48,6 +48,7 @@
#define ADV7180_INPUT_CONTROL_PAL_COMB_N_PED 0xd0
#define ADV7180_INPUT_CONTROL_PAL_SECAM 0xe0
#define ADV7180_INPUT_CONTROL_PAL_SECAM_PED 0xf0
#define ADV7180_INPUT_CONTROL_INSEL_MASK 0x0f
#define ADV7180_EXTENDED_OUTPUT_CONTROL_REG 0x04
#define ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS 0xC5
@ -55,9 +56,29 @@
#define ADV7180_AUTODETECT_ENABLE_REG 0x07
#define ADV7180_AUTODETECT_DEFAULT 0x7f
#define ADV7180_CON_REG 0x08 /*Unsigned */
#define CON_REG_MIN 0
#define CON_REG_DEF 128
#define CON_REG_MAX 255
#define ADV7180_BRI_REG 0x0a /*Signed */
#define BRI_REG_MIN -128
#define BRI_REG_DEF 0
#define BRI_REG_MAX 127
#define ADV7180_HUE_REG 0x0b /*Signed, inverted */
#define HUE_REG_MIN -127
#define HUE_REG_DEF 0
#define HUE_REG_MAX 128
#define ADV7180_ADI_CTRL_REG 0x0e
#define ADV7180_ADI_CTRL_IRQ_SPACE 0x20
#define ADV7180_PWR_MAN_REG 0x0f
#define ADV7180_PWR_MAN_ON 0x04
#define ADV7180_PWR_MAN_OFF 0x24
#define ADV7180_PWR_MAN_RES 0x80
#define ADV7180_STATUS1_REG 0x10
#define ADV7180_STATUS1_IN_LOCK 0x01
#define ADV7180_STATUS1_AUTOD_MASK 0x70
@ -78,6 +99,12 @@
#define ADV7180_ICONF1_PSYNC_ONLY 0x10
#define ADV7180_ICONF1_ACTIVE_TO_CLR 0xC0
#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_IRQ1_LOCK 0x01
#define ADV7180_IRQ1_UNLOCK 0x02
#define ADV7180_ISR1_ADI 0x42
@ -90,6 +117,9 @@
#define ADV7180_IMR3_ADI 0x4C
#define ADV7180_IMR4_ADI 0x50
#define ADV7180_NTSC_V_BIT_END_REG 0xE6
#define ADV7180_NTSC_V_BIT_END_MANUAL_NVEND 0x4F
struct adv7180_state {
struct v4l2_subdev sd;
struct work_struct work;
@ -97,6 +127,11 @@ struct adv7180_state {
int irq;
v4l2_std_id curr_norm;
bool autodetect;
s8 brightness;
s16 hue;
u8 contrast;
u8 saturation;
u8 input;
};
static v4l2_std_id adv7180_std_to_v4l2(u8 status1)
@ -192,6 +227,36 @@ static int adv7180_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
return err;
}
static int adv7180_s_routing(struct v4l2_subdev *sd, u32 input,
u32 output, u32 config)
{
struct adv7180_state *state = to_state(sd);
int ret = mutex_lock_interruptible(&state->mutex);
struct i2c_client *client = v4l2_get_subdevdata(sd);
if (ret)
return ret;
/*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)
goto out;
ret = i2c_smbus_read_byte_data(client, ADV7180_INPUT_CONTROL_REG);
if (ret < 0)
goto out;
ret &= ~ADV7180_INPUT_CONTROL_INSEL_MASK;
ret = i2c_smbus_write_byte_data(client,
ADV7180_INPUT_CONTROL_REG, ret | input);
state->input = input;
out:
mutex_unlock(&state->mutex);
return ret;
}
static int adv7180_g_input_status(struct v4l2_subdev *sd, u32 *status)
{
struct adv7180_state *state = to_state(sd);
@ -222,9 +287,10 @@ static int adv7180_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
/* all standards -> autodetect */
if (std == V4L2_STD_ALL) {
ret = i2c_smbus_write_byte_data(client,
ADV7180_INPUT_CONTROL_REG,
ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM);
ret =
i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM
| state->input);
if (ret < 0)
goto out;
@ -236,7 +302,8 @@ static int adv7180_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
goto out;
ret = i2c_smbus_write_byte_data(client,
ADV7180_INPUT_CONTROL_REG, ret);
ADV7180_INPUT_CONTROL_REG,
ret | state->input);
if (ret < 0)
goto out;
@ -249,14 +316,138 @@ static int adv7180_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
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)
{
struct adv7180_state *state = to_state(sd);
struct i2c_client *client = v4l2_get_subdevdata(sd);
int ret = mutex_lock_interruptible(&state->mutex);
if (ret)
return ret;
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);
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);
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);
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);
if (ret < 0)
break;
ret = i2c_smbus_write_byte_data(client,
ADV7180_SD_SAT_CR_REG,
state->saturation);
break;
default:
ret = -EINVAL;
}
mutex_unlock(&state->mutex);
return ret;
}
static const struct v4l2_subdev_video_ops adv7180_video_ops = {
.querystd = adv7180_querystd,
.g_input_status = adv7180_g_input_status,
.s_routing = adv7180_s_routing,
};
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,
};
static const struct v4l2_subdev_ops adv7180_ops = {
@ -297,10 +488,125 @@ static irqreturn_t adv7180_irq(int irq, void *devid)
return IRQ_HANDLED;
}
/*
* Generic i2c probe
* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
*/
static int init_device(struct i2c_client *client, struct adv7180_state *state)
{
int ret;
/* Initialize adv7180 */
/* Enable autodetection */
if (state->autodetect) {
ret =
i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM
| state->input);
if (ret < 0)
return ret;
ret =
i2c_smbus_write_byte_data(client,
ADV7180_AUTODETECT_ENABLE_REG,
ADV7180_AUTODETECT_DEFAULT);
if (ret < 0)
return ret;
} else {
ret = v4l2_std_to_adv7180(state->curr_norm);
if (ret < 0)
return ret;
ret =
i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
ret | state->input);
if (ret < 0)
return ret;
}
/* ITU-R BT.656-4 compatible */
ret = i2c_smbus_write_byte_data(client,
ADV7180_EXTENDED_OUTPUT_CONTROL_REG,
ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS);
if (ret < 0)
return ret;
/* Manually set V bit end position in NTSC mode */
ret = i2c_smbus_write_byte_data(client,
ADV7180_NTSC_V_BIT_END_REG,
ADV7180_NTSC_V_BIT_END_MANUAL_NVEND);
if (ret < 0)
return ret;
/* read current norm */
__adv7180_status(client, NULL, &state->curr_norm);
/* register for interrupts */
if (state->irq > 0) {
ret = request_irq(state->irq, adv7180_irq, 0, DRIVER_NAME,
state);
if (ret)
return ret;
ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
ADV7180_ADI_CTRL_IRQ_SPACE);
if (ret < 0)
return ret;
/* config the Interrupt pin to be active low */
ret = i2c_smbus_write_byte_data(client, ADV7180_ICONF1_ADI,
ADV7180_ICONF1_ACTIVE_LOW |
ADV7180_ICONF1_PSYNC_ONLY);
if (ret < 0)
return ret;
ret = i2c_smbus_write_byte_data(client, ADV7180_IMR1_ADI, 0);
if (ret < 0)
return ret;
ret = i2c_smbus_write_byte_data(client, ADV7180_IMR2_ADI, 0);
if (ret < 0)
return ret;
/* enable AD change interrupts interrupts */
ret = i2c_smbus_write_byte_data(client, ADV7180_IMR3_ADI,
ADV7180_IRQ3_AD_CHANGE);
if (ret < 0)
return ret;
ret = i2c_smbus_write_byte_data(client, ADV7180_IMR4_ADI, 0);
if (ret < 0)
return ret;
ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
0);
if (ret < 0)
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;
}
static __devinit int adv7180_probe(struct i2c_client *client,
const struct i2c_device_id *id)
@ -314,7 +620,7 @@ static __devinit int adv7180_probe(struct i2c_client *client,
return -EIO;
v4l_info(client, "chip found @ 0x%02x (%s)\n",
client->addr << 1, client->adapter->name);
client->addr, client->adapter->name);
state = kzalloc(sizeof(struct adv7180_state), GFP_KERNEL);
if (state == NULL) {
@ -326,73 +632,17 @@ 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);
/* Initialize adv7180 */
/* Enable autodetection */
ret = i2c_smbus_write_byte_data(client, ADV7180_INPUT_CONTROL_REG,
ADV7180_INPUT_CONTROL_AD_PAL_BG_NTSC_J_SECAM);
if (ret < 0)
ret = init_device(client, state);
if (0 != ret)
goto err_unreg_subdev;
ret = i2c_smbus_write_byte_data(client, ADV7180_AUTODETECT_ENABLE_REG,
ADV7180_AUTODETECT_DEFAULT);
if (ret < 0)
goto err_unreg_subdev;
/* ITU-R BT.656-4 compatible */
ret = i2c_smbus_write_byte_data(client,
ADV7180_EXTENDED_OUTPUT_CONTROL_REG,
ADV7180_EXTENDED_OUTPUT_CONTROL_NTSCDIS);
if (ret < 0)
goto err_unreg_subdev;
/* read current norm */
__adv7180_status(client, NULL, &state->curr_norm);
/* register for interrupts */
if (state->irq > 0) {
ret = request_irq(state->irq, adv7180_irq, 0, DRIVER_NAME,
state);
if (ret)
goto err_unreg_subdev;
ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
ADV7180_ADI_CTRL_IRQ_SPACE);
if (ret < 0)
goto err_unreg_subdev;
/* config the Interrupt pin to be active low */
ret = i2c_smbus_write_byte_data(client, ADV7180_ICONF1_ADI,
ADV7180_ICONF1_ACTIVE_LOW | ADV7180_ICONF1_PSYNC_ONLY);
if (ret < 0)
goto err_unreg_subdev;
ret = i2c_smbus_write_byte_data(client, ADV7180_IMR1_ADI, 0);
if (ret < 0)
goto err_unreg_subdev;
ret = i2c_smbus_write_byte_data(client, ADV7180_IMR2_ADI, 0);
if (ret < 0)
goto err_unreg_subdev;
/* enable AD change interrupts interrupts */
ret = i2c_smbus_write_byte_data(client, ADV7180_IMR3_ADI,
ADV7180_IRQ3_AD_CHANGE);
if (ret < 0)
goto err_unreg_subdev;
ret = i2c_smbus_write_byte_data(client, ADV7180_IMR4_ADI, 0);
if (ret < 0)
goto err_unreg_subdev;
ret = i2c_smbus_write_byte_data(client, ADV7180_ADI_CTRL_REG,
0);
if (ret < 0)
goto err_unreg_subdev;
}
return 0;
err_unreg_subdev:
@ -432,6 +682,35 @@ static const struct i2c_device_id adv7180_id[] = {
{},
};
#ifdef CONFIG_PM
static int adv7180_suspend(struct i2c_client *client, pm_message_t state)
{
int ret;
ret = i2c_smbus_write_byte_data(client, ADV7180_PWR_MAN_REG,
ADV7180_PWR_MAN_OFF);
if (ret < 0)
return ret;
return 0;
}
static int adv7180_resume(struct i2c_client *client)
{
struct v4l2_subdev *sd = i2c_get_clientdata(client);
struct adv7180_state *state = to_state(sd);
int ret;
ret = i2c_smbus_write_byte_data(client, ADV7180_PWR_MAN_REG,
ADV7180_PWR_MAN_ON);
if (ret < 0)
return ret;
ret = init_device(client, state);
if (ret < 0)
return ret;
return 0;
}
#endif
MODULE_DEVICE_TABLE(i2c, adv7180_id);
static struct i2c_driver adv7180_driver = {
@ -441,6 +720,10 @@ static struct i2c_driver adv7180_driver = {
},
.probe = adv7180_probe,
.remove = __devexit_p(adv7180_remove),
#ifdef CONFIG_PM
.suspend = adv7180_suspend,
.resume = adv7180_resume,
#endif
.id_table = adv7180_id,
};