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Commit e364632e authored by malattia@linux.it's avatar malattia@linux.it Committed by Len Brown
Browse files

sony-laptop: complete the motion eye camera support in sony-laptop 



Add the exported sony_pic_camera_command() function to make the MEYE
driver happy.

Signed-off-by: default avatarMattia Dongili <malattia@linux.it>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent 1a3e3239

drivers/misc/sony-laptop.c

+90 −18
Original line number Diff line number Diff line
@@ -1220,12 +1220,36 @@ static u8 sony_pic_call3(u8 dev, u8 fn, u8 v) 


/* camera tests and poweron/poweroff */

#define SONYPI_CAMERA_PICTURE		5

#define SONYPI_CAMERA_CONTROL		0x10



#define SONYPI_CAMERA_BRIGHTNESS		0

#define SONYPI_CAMERA_CONTRAST			1

#define SONYPI_CAMERA_HUE			2

#define SONYPI_CAMERA_COLOR			3

#define SONYPI_CAMERA_SHARPNESS			4



#define SONYPI_CAMERA_EXPOSURE_MASK		0xC

#define SONYPI_CAMERA_WHITE_BALANCE_MASK	0x3

#define SONYPI_CAMERA_PICTURE_MODE_MASK		0x30

#define SONYPI_CAMERA_MUTE_MASK			0x40



/* the rest don't need a loop until not 0xff */

#define SONYPI_CAMERA_AGC			6

#define SONYPI_CAMERA_AGC_MASK			0x30

#define SONYPI_CAMERA_SHUTTER_MASK 		0x7



#define SONYPI_CAMERA_SHUTDOWN_REQUEST		7

#define SONYPI_CAMERA_CONTROL			0x10



#define SONYPI_CAMERA_STATUS 			7

#define SONYPI_CAMERA_STATUS_READY 		0x2

#define SONYPI_CAMERA_STATUS_POSITION		0x4



#define SONYPI_DIRECTION_BACKWARDS 		0x4



#define SONYPI_CAMERA_REVISION 			8

#define SONYPI_CAMERA_ROMVERSION 		9



static int __sony_pic_camera_ready(void)

{

	u8 v;
@@ -1234,14 +1258,13 @@ static int __sony_pic_camera_ready(void) 
	return (v != 0xff && (v & SONYPI_CAMERA_STATUS_READY));

}



static int sony_pic_camera_off(void)

static int __sony_pic_camera_off(void)

{

	if (!camera) {

		printk(KERN_WARNING DRV_PFX "camera control not enabled\n");

		return -ENODEV;

	}



	mutex_lock(&spic_dev.lock);

	wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE,

				SONYPI_CAMERA_MUTE_MASK),

			ITERATIONS_SHORT);
@@ -1250,23 +1273,20 @@ static int sony_pic_camera_off(void) 
		sony_pic_call2(0x91, 0);

		spic_dev.camera_power = 0;

	}

	mutex_unlock(&spic_dev.lock);

	return 0;

}



static int sony_pic_camera_on(void)

static int __sony_pic_camera_on(void)

{

	int i, j, x;

	int result = 0;



	if (!camera) {

		printk(KERN_WARNING DRV_PFX "camera control not enabled\n");

		return -ENODEV;

	}



	mutex_lock(&spic_dev.lock);

	if (spic_dev.camera_power)

		goto out_unlock;

		return 0;



	for (j = 5; j > 0; j--) {
@@ -1285,8 +1305,7 @@ static int sony_pic_camera_on(void) 


	if (j == 0) {

		printk(KERN_WARNING DRV_PFX "failed to power on camera\n");

		result = -ENODEV;

		goto out_unlock;

		return -ENODEV;

	}



	wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTROL,
@@ -1294,9 +1313,6 @@ static int sony_pic_camera_on(void) 
			ITERATIONS_SHORT);



	spic_dev.camera_power = 1;



out_unlock:

	mutex_unlock(&spic_dev.lock);

	return 0;

}
@@ -1310,10 +1326,13 @@ static ssize_t sony_pic_camerapower_store(struct device *dev, 
		return -EINVAL;



	value = simple_strtoul(buffer, NULL, 10);



	mutex_lock(&spic_dev.lock);

	if (value)

		result = sony_pic_camera_on();

		result = __sony_pic_camera_on();

	else

		result = sony_pic_camera_off();

		result = __sony_pic_camera_off();

	mutex_unlock(&spic_dev.lock);



	if (result)

		return result;
@@ -1331,6 +1350,59 @@ static ssize_t sony_pic_camerapower_show(struct device *dev, 
	return count;

}



/* External camera command (exported to the motion eye v4l driver) */

int sony_pic_camera_command(int command, u8 value)

{

	if (!camera)

		return -EIO;



	mutex_lock(&spic_dev.lock);



	switch (command) {

	case SONYPI_COMMAND_SETCAMERA:

		if (value)

			__sony_pic_camera_on();

		else

			__sony_pic_camera_off();

		break;

	case SONYPI_COMMAND_SETCAMERABRIGHTNESS:

		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_BRIGHTNESS, value),

				ITERATIONS_SHORT);

		break;

	case SONYPI_COMMAND_SETCAMERACONTRAST:

		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_CONTRAST, value),

				ITERATIONS_SHORT);

		break;

	case SONYPI_COMMAND_SETCAMERAHUE:

		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_HUE, value),

				ITERATIONS_SHORT);

		break;

	case SONYPI_COMMAND_SETCAMERACOLOR:

		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_COLOR, value),

				ITERATIONS_SHORT);

		break;

	case SONYPI_COMMAND_SETCAMERASHARPNESS:

		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_SHARPNESS, value),

				ITERATIONS_SHORT);

		break;

	case SONYPI_COMMAND_SETCAMERAPICTURE:

		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_PICTURE, value),

				ITERATIONS_SHORT);

		break;

	case SONYPI_COMMAND_SETCAMERAAGC:

		wait_on_command(sony_pic_call3(0x90, SONYPI_CAMERA_AGC, value),

				ITERATIONS_SHORT);

		break;

	default:

		printk(KERN_ERR DRV_PFX "sony_pic_camera_command invalid: %d\n",

		       command);

		break;

	}

	mutex_unlock(&spic_dev.lock);

	return 0;

}

EXPORT_SYMBOL(sony_pic_camera_command);



/* gprs/edge modem (SZ460N and SZ210P), thanks to Joshua Wise */

static void sony_pic_set_wwanpower(u8 state)

{