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Commit 5cd0bca4 authored by Kamen Kirov's avatar Kamen Kirov
Browse files

camera_v2: Add IOCTL to set jpeg core clock rate 



Adds a new IOCTL that provides ability to set the JPEG clock rate
dynamically.

Signed-off-by: default avatarKamen Kirov <kkirov@codeaurora.org>
Change-Id: I8a701c9f4ea047bc863b62559d6897575f15cc75
parent f0dd78ad

drivers/media/platform/msm/camera_v2/jpeg_10/msm_jpeg_platform.c

+13 −0
Original line number Original line Diff line number Diff line
@@ -28,6 +28,19 @@ 
#include "msm_jpeg_common.h"

#include "msm_jpeg_common.h"

#include "msm_jpeg_hw.h"

#include "msm_jpeg_hw.h"





int msm_jpeg_platform_set_clk_rate(struct msm_jpeg_device *pgmn_dev,

		long clk_rate)

{

	struct msm_cam_clk_info jpeg_core_clk_info[] = {

		{"core_clk", JPEG_CLK_RATE, 0}

	};



	jpeg_core_clk_info[0].clk_rate = clk_rate;



	return msm_cam_clk_enable(&pgmn_dev->pdev->dev, jpeg_core_clk_info,

			pgmn_dev->jpeg_clk, ARRAY_SIZE(jpeg_core_clk_info), 1);

}



void msm_jpeg_platform_p2v(struct msm_jpeg_device *pgmn_dev, struct file  *file,

void msm_jpeg_platform_p2v(struct msm_jpeg_device *pgmn_dev, struct file  *file,

	struct ion_handle **ionhandle, int domain_num)

	struct ion_handle **ionhandle, int domain_num)

{

{

drivers/media/platform/msm/camera_v2/jpeg_10/msm_jpeg_platform.h

+2 −0
Original line number Original line Diff line number Diff line
@@ -21,6 +21,8 @@ 
#include "msm_jpeg_sync.h"

#include "msm_jpeg_sync.h"

#define JPEG_CLK_RATE 266670000

#define JPEG_CLK_RATE 266670000





int msm_jpeg_platform_set_clk_rate(struct msm_jpeg_device *pgmn_dev,

		long clk_rate);

void msm_jpeg_platform_p2v(struct msm_jpeg_device *pgmn_dev, struct file *file,

void msm_jpeg_platform_p2v(struct msm_jpeg_device *pgmn_dev, struct file *file,

	struct ion_handle **ionhandle, int domain_num);

	struct ion_handle **ionhandle, int domain_num);

uint32_t msm_jpeg_platform_v2p(struct msm_jpeg_device *pgmn_dev, int fd,

uint32_t msm_jpeg_platform_v2p(struct msm_jpeg_device *pgmn_dev, int fd,

drivers/media/platform/msm/camera_v2/jpeg_10/msm_jpeg_sync.c

+33 −0
Original line number Original line Diff line number Diff line
@@ -804,6 +804,36 @@ int msm_jpeg_ioctl_test_dump_region(struct msm_jpeg_device *pgmn_dev, 
	return 0;

	return 0;

}

}





int msm_jpeg_ioctl_set_clk_rate(struct msm_jpeg_device *pgmn_dev,

	unsigned long arg)

{

	long clk_rate;

	int rc;



	if ((pgmn_dev->state != MSM_JPEG_INIT) &&

		(pgmn_dev->state != MSM_JPEG_RESET)) {

		JPEG_PR_ERR("%s:%d] failed\n", __func__, __LINE__);

		return -EFAULT;

	}

	if (get_user(clk_rate, (long __user *)arg)) {

		JPEG_PR_ERR("%s:%d] failed\n", __func__, __LINE__);

		return -EFAULT;

	}

	JPEG_DBG("%s:%d] Requested clk rate %ld\n", __func__, __LINE__,

		clk_rate);

	if (clk_rate < 0) {

		JPEG_PR_ERR("%s:%d] failed\n", __func__, __LINE__);

		return -EFAULT;

	}

	rc = msm_jpeg_platform_set_clk_rate(pgmn_dev, clk_rate);

	if (rc < 0) {

		JPEG_PR_ERR("%s: clk failed rc = %d\n", __func__, rc);

		return -EFAULT;

	}



	return 0;

}



long __msm_jpeg_ioctl(struct msm_jpeg_device *pgmn_dev,

long __msm_jpeg_ioctl(struct msm_jpeg_device *pgmn_dev,

	unsigned int cmd, unsigned long arg)

	unsigned int cmd, unsigned long arg)

{

{
@@ -873,6 +903,9 @@ long __msm_jpeg_ioctl(struct msm_jpeg_device *pgmn_dev, 
		rc = msm_jpeg_ioctl_test_dump_region(pgmn_dev, arg);

		rc = msm_jpeg_ioctl_test_dump_region(pgmn_dev, arg);

		break;

		break;





	case MSM_JPEG_IOCTL_SET_CLK_RATE:

		rc = msm_jpeg_ioctl_set_clk_rate(pgmn_dev, arg);

		break;

	default:

	default:

		JPEG_PR_ERR(KERN_INFO "%s:%d] cmd = %d not supported\n",

		JPEG_PR_ERR(KERN_INFO "%s:%d] cmd = %d not supported\n",

			__func__, __LINE__, _IOC_NR(cmd));

			__func__, __LINE__, _IOC_NR(cmd));

include/media/msm_jpeg.h

+3 −0
Original line number Original line Diff line number Diff line
@@ -55,6 +55,9 @@ 
#define MSM_JPEG_IOCTL_TEST_DUMP_REGION \

#define MSM_JPEG_IOCTL_TEST_DUMP_REGION \

	_IOW(MSM_JPEG_IOCTL_MAGIC, 15, unsigned long)

	_IOW(MSM_JPEG_IOCTL_MAGIC, 15, unsigned long)





#define MSM_JPEG_IOCTL_SET_CLK_RATE \

	_IOW(MSM_JPEG_IOCTL_MAGIC, 16, unsigned long)



#define MSM_JPEG_MODE_REALTIME_ENCODE 0

#define MSM_JPEG_MODE_REALTIME_ENCODE 0

#define MSM_JPEG_MODE_OFFLINE_ENCODE 1

#define MSM_JPEG_MODE_OFFLINE_ENCODE 1

#define MSM_JPEG_MODE_REALTIME_ROTATION 2

#define MSM_JPEG_MODE_REALTIME_ROTATION 2