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Commit 513ded52 authored by Mayank Parashar's avatar Mayank Parashar Committed by Lokesh Kumar Aakulu
Browse files

msm: camera: Add support for LED flash fast factory boot mode 



Create torch-light node for i2c driven led flash device
and provide handle to fast mmi.

Change-Id: I19d79c2547b8d72f8d74a333c419b98e9093f0de
Signed-off-by: default avatarLokesh Kumar Aakulu <lkumar@codeaurora.org>
Signed-off-by: default avatarMayank Parashar <mayankp@codeaurora.org>
parent 7e8768ee

drivers/media/platform/msm/camera_v2/sensor/flash/msm_led_i2c_trigger.c

+69 −0
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ 
#undef CDBG

#define CDBG(fmt, args...) pr_debug(fmt, ##args)



static void *g_fctrl;

int32_t msm_led_i2c_trigger_get_subdev_id(struct msm_led_flash_ctrl_t *fctrl,

	void *arg)

{
@@ -663,9 +664,27 @@ static int set_led_status(void *data, u64 val) 
	if (val == 0) {

		pr_debug("set_led_status: val is disable");

		rc = msm_flash_led_off(fctrl);

		if (rc < 0) {

			pr_err("%s led_off failed line %d\n", __func__, __LINE__);

			return rc;

		}

		rc = msm_flash_led_release(fctrl);

		if (rc < 0) {

			pr_err("%s led_release failed line %d\n", __func__, __LINE__);

			return rc;

		}

	} else {

		pr_debug("set_led_status: val is enable");

		rc = msm_flash_led_init(fctrl);

		if (rc < 0) {

			pr_err("%s led_init failed line %d\n", __func__, __LINE__);

			return rc;

		}

		rc = msm_flash_led_low(fctrl);

		if (rc < 0) {

			pr_err("%s led_low failed line %d\n", __func__, __LINE__);

			return rc;

		}

	}



	return rc;
@@ -675,6 +694,49 @@ DEFINE_SIMPLE_ATTRIBUTE(ledflashdbg_fops, 
	NULL, set_led_status, "%llu\n");

#endif



static void msm_led_i2c_torch_brightness_set(struct led_classdev *led_cdev,

				enum led_brightness value)

{

	struct msm_led_flash_ctrl_t *fctrl = NULL;



	if (g_fctrl == NULL)

		return;



	fctrl = (struct msm_led_flash_ctrl_t *) g_fctrl;



	if (value > LED_OFF) {

		if (fctrl->func_tbl->flash_led_init)

			fctrl->func_tbl->flash_led_init(fctrl);

		if (fctrl->func_tbl->flash_led_low)

			fctrl->func_tbl->flash_led_low(fctrl);

	} else {

		if (fctrl->func_tbl->flash_led_off)

			fctrl->func_tbl->flash_led_off(fctrl);

		if (fctrl->func_tbl->flash_led_release)

			fctrl->func_tbl->flash_led_release(fctrl);

	}

};



static struct led_classdev msm_torch_i2c_led = {

	.name			= "torch-light",

	.brightness_set	= msm_led_i2c_torch_brightness_set,

	.brightness		= LED_OFF,

};



static int32_t msm_i2c_torch_create_classdev(struct device *dev ,

				void *data)

{

	int rc;

	msm_led_i2c_torch_brightness_set(&msm_torch_i2c_led, LED_OFF);

	rc = led_classdev_register(dev, &msm_torch_i2c_led);

	if (rc) {

		pr_err("Failed to register led dev. rc = %d\n", rc);

		return rc;

	}



	return 0;

};



int msm_flash_i2c_probe(struct i2c_client *client,

		const struct i2c_device_id *id)

{
@@ -731,6 +793,13 @@ int msm_flash_i2c_probe(struct i2c_client *client, 
	if (!dentry)

		pr_err("Failed to create the debugfs ledflash file");

#endif

	/* Assign Global flash control sturcture for local usage */

	g_fctrl = (void *) fctrl;

	rc = msm_i2c_torch_create_classdev(&(client->dev), NULL);

	if (rc) {

		pr_err("%s failed to create classdev %d\n", __func__, __LINE__);

		return rc;

	}

	CDBG("%s:%d probe success\n", __func__, __LINE__);

	return 0;