drivers/media/platform/msm/camera_v2/jpeg_10/msm_jpeg_core.c - kernel/msm-4.9 - Gitiles

 /* Copyright (c) 2012-2015, 2018, The Linux Foundation. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 and
  * only version 2 as published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */

 #include <linux/module.h>
 #include <linux/sched.h>
 #include "msm_jpeg_hw.h"
 #include "msm_jpeg_core.h"
 #include "msm_jpeg_platform.h"
 #include "msm_jpeg_common.h"

 int msm_jpeg_core_reset(struct msm_jpeg_device *pgmn_dev, uint8_t op_mode,
 	void *base, int size) {
 	unsigned long flags;
 	int rc = 0;
 	int tm = 500; /*500ms*/

 	JPEG_DBG("%s:%d] reset", __func__, __LINE__);
 	memset(&pgmn_dev->fe_pingpong_buf, 0,
 		sizeof(pgmn_dev->fe_pingpong_buf));
 	pgmn_dev->fe_pingpong_buf.is_fe = 1;
 	memset(&pgmn_dev->we_pingpong_buf, 0,
 		sizeof(pgmn_dev->we_pingpong_buf));
 	spin_lock_irqsave(&pgmn_dev->reset_lock, flags);
 	pgmn_dev->reset_done_ack = 0;
 	if (pgmn_dev->core_type == MSM_JPEG_CORE_CODEC)
 		msm_jpeg_hw_reset(base, size);
 	else
 		msm_jpeg_hw_reset_dma(base, size);

 	spin_unlock_irqrestore(&pgmn_dev->reset_lock, flags);
 	rc = wait_event_timeout(
 			pgmn_dev->reset_wait,
 			pgmn_dev->reset_done_ack,
 			msecs_to_jiffies(tm));

 	if (!pgmn_dev->reset_done_ack) {
 		JPEG_DBG("%s: reset ACK failed %d", __func__, rc);
 		return -EBUSY;
 	}

 	JPEG_DBG("%s: reset_done_ack rc %d", __func__, rc);
 	spin_lock_irqsave(&pgmn_dev->reset_lock, flags);
 	pgmn_dev->reset_done_ack = 0;
 	pgmn_dev->state = MSM_JPEG_RESET;
 	spin_unlock_irqrestore(&pgmn_dev->reset_lock, flags);

 	return 0;
 }

 void msm_jpeg_core_release(struct msm_jpeg_device *pgmn_dev)
 {
 	int i = 0;

 	for (i = 0; i < 2; i++) {
 		if (pgmn_dev->we_pingpong_buf.buf_status[i] &&
 			pgmn_dev->release_buf)
 			msm_jpeg_platform_p2v(pgmn_dev->iommu_hdl,
 				pgmn_dev->we_pingpong_buf.buf[i].ion_fd);
 		pgmn_dev->we_pingpong_buf.buf_status[i] = 0;
 	}
 }

 void msm_jpeg_core_init(struct msm_jpeg_device *pgmn_dev)
 {
 	init_waitqueue_head(&pgmn_dev->reset_wait);
 	spin_lock_init(&pgmn_dev->reset_lock);
 }

 int msm_jpeg_core_fe_start(struct msm_jpeg_device *pgmn_dev)
 {
 	msm_jpeg_hw_fe_start(pgmn_dev->base);
 	return 0;
 }

 /* fetch engine */
 int msm_jpeg_core_fe_buf_update(struct msm_jpeg_device *pgmn_dev,
 	struct msm_jpeg_core_buf *buf)
 {
 	int rc = 0;

 	if (buf->cbcr_len == 0)
 		buf->cbcr_buffer_addr = 0x0;

 	JPEG_DBG("%s:%d] 0x%08x %d 0x%08x %d\n", __func__, __LINE__,
 		(int) buf->y_buffer_addr, buf->y_len,
 		(int) buf->cbcr_buffer_addr, buf->cbcr_len);

 	if (pgmn_dev->core_type == MSM_JPEG_CORE_CODEC) {
 		rc = msm_jpeg_hw_pingpong_update(&pgmn_dev->fe_pingpong_buf,
 			buf, pgmn_dev->base);
 		if (rc < 0)
 			return rc;
 		msm_jpeg_hw_fe_mmu_prefetch(buf, pgmn_dev->base,
 			pgmn_dev->decode_flag);
 	} else {
 		rc = msm_jpegdma_hw_pingpong_update(
 			&pgmn_dev->fe_pingpong_buf, buf, pgmn_dev->base);
 		if (rc < 0)
 			return rc;
 		msm_jpegdma_hw_fe_mmu_prefetch(buf, pgmn_dev->base);
 	}

 	return rc;
 }

 static void *msm_jpeg_core_fe_pingpong_irq(int jpeg_irq_status,
 	struct msm_jpeg_device *pgmn_dev)
 {
 	return msm_jpeg_hw_pingpong_irq(&pgmn_dev->fe_pingpong_buf);
 }

 /* write engine */
 int msm_jpeg_core_we_buf_update(struct msm_jpeg_device *pgmn_dev,
 	struct msm_jpeg_core_buf *buf) {

 	JPEG_DBG("%s:%d] 0x%08x 0x%08x %d\n", __func__, __LINE__,
 		(int) buf->y_buffer_addr, (int) buf->cbcr_buffer_addr,
 		buf->y_len);

 	pgmn_dev->we_pingpong_buf.buf[0] = *buf;
 	pgmn_dev->we_pingpong_buf.buf_status[0] = 1;

 	if (pgmn_dev->core_type == MSM_JPEG_CORE_CODEC) {
 		msm_jpeg_hw_we_buffer_update(
 			&pgmn_dev->we_pingpong_buf.buf[0], 0, pgmn_dev->base);
 		msm_jpeg_hw_we_mmu_prefetch(buf, pgmn_dev->base,
 			pgmn_dev->decode_flag);
 	} else {
 		msm_jpegdma_hw_we_buffer_update(
 			&pgmn_dev->we_pingpong_buf.buf[0], 0, pgmn_dev->base);
 		msm_jpegdma_hw_we_mmu_prefetch(buf, pgmn_dev->base);
 	}

 	return 0;
 }

 int msm_jpeg_core_we_buf_reset(struct msm_jpeg_device *pgmn_dev,
 	struct msm_jpeg_hw_buf *buf)
 {
 	int i = 0;

 	for (i = 0; i < 2; i++) {
 		if (pgmn_dev->we_pingpong_buf.buf[i].y_buffer_addr
 			== buf->y_buffer_addr)
 			pgmn_dev->we_pingpong_buf.buf_status[i] = 0;
 	}
 	return 0;
 }

 static void *msm_jpeg_core_we_pingpong_irq(int jpeg_irq_status,
 	struct msm_jpeg_device *pgmn_dev)
 {
 	JPEG_DBG("%s:%d]\n", __func__, __LINE__);

 	return msm_jpeg_hw_pingpong_irq(&pgmn_dev->we_pingpong_buf);
 }

 static void *msm_jpeg_core_framedone_irq(int jpeg_irq_status,
 	struct msm_jpeg_device *pgmn_dev)
 {
 	struct msm_jpeg_hw_buf *buf_p;

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

 	buf_p = msm_jpeg_hw_pingpong_active_buffer(
 		&pgmn_dev->we_pingpong_buf);
 	if (buf_p && !pgmn_dev->decode_flag) {
 		buf_p->framedone_len =
 			msm_jpeg_hw_encode_output_size(pgmn_dev->base);
 		JPEG_DBG("%s:%d] framedone_len %d\n", __func__, __LINE__,
 			buf_p->framedone_len);
 	}

 	return buf_p;
 }

 static void *msm_jpeg_core_reset_ack_irq(int jpeg_irq_status,
 	struct msm_jpeg_device *pgmn_dev)
 {
 	/* @todo return the status back to msm_jpeg_core_reset */
 	JPEG_DBG("%s:%d]\n", __func__, __LINE__);
 	return NULL;
 }

 static void *msm_jpeg_core_err_irq(int jpeg_irq_status,
 	struct msm_jpeg_device *pgmn_dev)
 {
 	JPEG_PR_ERR("%s: Error %x\n", __func__, jpeg_irq_status);
 	return NULL;
 }

 static int (*msm_jpeg_irq_handler)(int, void *, void *);

 static void msm_jpeg_core_return_buffers(struct msm_jpeg_device *pgmn_dev,
 	 int jpeg_irq_status)
 {
 	void *data = NULL;

 	data = msm_jpeg_core_fe_pingpong_irq(jpeg_irq_status,
 		pgmn_dev);
 	if (msm_jpeg_irq_handler)
 		msm_jpeg_irq_handler(MSM_JPEG_HW_MASK_COMP_FE,
 			pgmn_dev, data);
 	data = msm_jpeg_core_we_pingpong_irq(jpeg_irq_status,
 		pgmn_dev);
 	if (msm_jpeg_irq_handler)
 		msm_jpeg_irq_handler(MSM_JPEG_HW_MASK_COMP_WE,
 			pgmn_dev, data);
 }

 irqreturn_t msm_jpeg_core_irq(int irq_num, void *context)
 {
 	void *data = NULL;
 	unsigned long flags;
 	int jpeg_irq_status;
 	struct msm_jpeg_device *pgmn_dev = (struct msm_jpeg_device *)context;

 	JPEG_DBG("%s:%d] irq_num = %d\n", __func__, __LINE__, irq_num);

 	jpeg_irq_status = msm_jpeg_hw_irq_get_status(pgmn_dev->base);

 	JPEG_DBG("%s:%d] jpeg_irq_status = %0x\n", __func__, __LINE__,
 		jpeg_irq_status);

 	/*For reset and framedone IRQs, clear all bits*/
 	if (pgmn_dev->state == MSM_JPEG_IDLE) {
 		JPEG_DBG_HIGH("%s %d ] Error IRQ received state %d",
 		__func__, __LINE__, pgmn_dev->state);
 		JPEG_DBG_HIGH("%s %d ] Ignoring the Error", __func__,
 		__LINE__);
 		msm_jpeg_hw_irq_clear(JPEG_IRQ_CLEAR_BMSK,
 			JPEG_IRQ_CLEAR_ALL, pgmn_dev->base);
 		return IRQ_HANDLED;
 	} else if (jpeg_irq_status & 0x10000000) {
 		msm_jpeg_hw_irq_clear(JPEG_IRQ_CLEAR_BMSK,
 			JPEG_IRQ_CLEAR_ALL, pgmn_dev->base);
 	} else if (jpeg_irq_status & 0x1) {
 		msm_jpeg_hw_irq_clear(JPEG_IRQ_CLEAR_BMSK,
 			JPEG_IRQ_CLEAR_ALL, pgmn_dev->base);
 		if (pgmn_dev->decode_flag)
 			msm_jpeg_decode_status(pgmn_dev->base);
 	} else {
 		msm_jpeg_hw_irq_clear(JPEG_IRQ_CLEAR_BMSK,
 			jpeg_irq_status, pgmn_dev->base);
 	}

 	if (msm_jpeg_hw_irq_is_frame_done(jpeg_irq_status)) {
 		/* send fe ping pong irq */
 		JPEG_DBG_HIGH("%s:%d] Session done\n", __func__, __LINE__);
 		data = msm_jpeg_core_fe_pingpong_irq(jpeg_irq_status,
 			pgmn_dev);
 		if (msm_jpeg_irq_handler)
 			msm_jpeg_irq_handler(MSM_JPEG_HW_MASK_COMP_FE,
 				context, data);
 		data = msm_jpeg_core_framedone_irq(jpeg_irq_status,
 			pgmn_dev);
 		if (msm_jpeg_irq_handler)
 			msm_jpeg_irq_handler(
 				MSM_JPEG_HW_MASK_COMP_FRAMEDONE,
 				context, data);
 		pgmn_dev->state = MSM_JPEG_INIT;
 	}
 	if (msm_jpeg_hw_irq_is_reset_ack(jpeg_irq_status)) {
 		data = msm_jpeg_core_reset_ack_irq(jpeg_irq_status,
 			pgmn_dev);
 		spin_lock_irqsave(&pgmn_dev->reset_lock, flags);
 		pgmn_dev->reset_done_ack = 1;
 		spin_unlock_irqrestore(&pgmn_dev->reset_lock, flags);
 		wake_up(&pgmn_dev->reset_wait);
 		if (msm_jpeg_irq_handler)
 			msm_jpeg_irq_handler(
 				MSM_JPEG_HW_MASK_COMP_RESET_ACK,
 				context, data);
 	}

 	/* Unexpected/unintended HW interrupt */
 	if (msm_jpeg_hw_irq_is_err(jpeg_irq_status)) {
 		if (pgmn_dev->state != MSM_JPEG_EXECUTING) {
 			/*Clear all the bits and ignore the IRQ*/
 			JPEG_DBG_HIGH("%s %d ] Error IRQ received state %d",
 			__func__, __LINE__, pgmn_dev->state);
 			JPEG_DBG_HIGH("%s %d ] Ignoring the Error", __func__,
 			__LINE__);
 			msm_jpeg_hw_irq_clear(JPEG_IRQ_CLEAR_BMSK,
 			JPEG_IRQ_CLEAR_ALL, pgmn_dev->base);
 		} else {
 			if (pgmn_dev->decode_flag)
 				msm_jpeg_decode_status(pgmn_dev->base);
 			msm_jpeg_core_return_buffers(pgmn_dev, jpeg_irq_status);
 			data = msm_jpeg_core_err_irq(jpeg_irq_status, pgmn_dev);
 			if (msm_jpeg_irq_handler) {
 				msm_jpeg_irq_handler(MSM_JPEG_HW_MASK_COMP_ERR,
 					context, data);
 			}
 		}
 	}

 	return IRQ_HANDLED;
 }

 irqreturn_t msm_jpegdma_core_irq(int irq_num, void *context)
 {
 	void *data = NULL;
 	unsigned long flags;
 	int jpeg_irq_status;
 	struct msm_jpeg_device *pgmn_dev = context;

 	JPEG_DBG("%s:%d] irq_num = %d\n", __func__, __LINE__, irq_num);

 	jpeg_irq_status = msm_jpegdma_hw_irq_get_status(pgmn_dev->base);

 	JPEG_DBG("%s:%d] jpeg_irq_status = %0x\n", __func__, __LINE__,
 		jpeg_irq_status);

 	/*For reset and framedone IRQs, clear all bits*/
 	if (pgmn_dev->state == MSM_JPEG_IDLE) {
 		JPEG_DBG_HIGH("%s %d ] Error IRQ received state %d",
 		__func__, __LINE__, pgmn_dev->state);
 		JPEG_DBG_HIGH("%s %d ] Ignoring the Error", __func__,
 		__LINE__);
 		msm_jpegdma_hw_irq_clear(JPEGDMA_IRQ_CLEAR_BMSK,
 			JPEGDMA_IRQ_CLEAR_ALL, pgmn_dev->base);
 		return IRQ_HANDLED;
 	} else if (jpeg_irq_status & 0x00000400) {
 		msm_jpegdma_hw_irq_clear(JPEGDMA_IRQ_CLEAR_BMSK,
 			JPEGDMA_IRQ_CLEAR_ALL, pgmn_dev->base);
 	} else if (jpeg_irq_status & 0x1) {
 		msm_jpegdma_hw_irq_clear(JPEGDMA_IRQ_CLEAR_BMSK,
 			JPEGDMA_IRQ_CLEAR_ALL, pgmn_dev->base);
 	} else {
 		msm_jpegdma_hw_irq_clear(JPEGDMA_IRQ_CLEAR_BMSK,
 			jpeg_irq_status, pgmn_dev->base);
 	}

 	if (msm_jpegdma_hw_irq_is_frame_done(jpeg_irq_status)) {
 		/* send fe ping pong irq */
 		JPEG_DBG_HIGH("%s:%d] Session done\n", __func__, __LINE__);
 		data = msm_jpeg_core_fe_pingpong_irq(jpeg_irq_status,
 			pgmn_dev);
 		if (msm_jpeg_irq_handler)
 			msm_jpeg_irq_handler(MSM_JPEG_HW_MASK_COMP_FE,
 				context, data);
 		data = msm_jpeg_core_framedone_irq(jpeg_irq_status,
 			pgmn_dev);
 		if (msm_jpeg_irq_handler)
 			msm_jpeg_irq_handler(
 				MSM_JPEG_HW_MASK_COMP_FRAMEDONE,
 				context, data);
 		pgmn_dev->state = MSM_JPEG_INIT;
 	}
 	if (msm_jpegdma_hw_irq_is_reset_ack(jpeg_irq_status)) {
 		data = msm_jpeg_core_reset_ack_irq(jpeg_irq_status,
 			pgmn_dev);
 		spin_lock_irqsave(&pgmn_dev->reset_lock, flags);
 		pgmn_dev->reset_done_ack = 1;
 		spin_unlock_irqrestore(&pgmn_dev->reset_lock, flags);
 		wake_up(&pgmn_dev->reset_wait);
 		if (msm_jpeg_irq_handler)
 			msm_jpeg_irq_handler(
 				MSM_JPEG_HW_MASK_COMP_RESET_ACK,
 				context, data);
 	}

 	return IRQ_HANDLED;
 }

 void msm_jpeg_core_irq_install(int (*irq_handler) (int, void *, void *))
 {
 	msm_jpeg_irq_handler = irq_handler;
 }

 void msm_jpeg_core_irq_remove(void)
 {
 	msm_jpeg_irq_handler = NULL;
 }
	/* Copyright (c) 2012-2015, 2018, The Linux Foundation. All rights reserved.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 and
	* only version 2 as published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*/

	#include <linux/module.h>
	#include <linux/sched.h>
	#include "msm_jpeg_hw.h"
	#include "msm_jpeg_core.h"
	#include "msm_jpeg_platform.h"
	#include "msm_jpeg_common.h"

	int msm_jpeg_core_reset(struct msm_jpeg_device *pgmn_dev, uint8_t op_mode,
	void *base, int size) {
	unsigned long flags;
	int rc = 0;
	int tm = 500; /500ms/

	JPEG_DBG("%s:%d] reset", __func__, __LINE__);
	memset(&pgmn_dev->fe_pingpong_buf, 0,
	sizeof(pgmn_dev->fe_pingpong_buf));
	pgmn_dev->fe_pingpong_buf.is_fe = 1;
	memset(&pgmn_dev->we_pingpong_buf, 0,
	sizeof(pgmn_dev->we_pingpong_buf));
	spin_lock_irqsave(&pgmn_dev->reset_lock, flags);
	pgmn_dev->reset_done_ack = 0;
	if (pgmn_dev->core_type == MSM_JPEG_CORE_CODEC)
	msm_jpeg_hw_reset(base, size);
	else
	msm_jpeg_hw_reset_dma(base, size);

	spin_unlock_irqrestore(&pgmn_dev->reset_lock, flags);
	rc = wait_event_timeout(
	pgmn_dev->reset_wait,
	pgmn_dev->reset_done_ack,
	msecs_to_jiffies(tm));

	if (!pgmn_dev->reset_done_ack) {
	JPEG_DBG("%s: reset ACK failed %d", __func__, rc);
	return -EBUSY;
	}

	JPEG_DBG("%s: reset_done_ack rc %d", __func__, rc);
	spin_lock_irqsave(&pgmn_dev->reset_lock, flags);
	pgmn_dev->reset_done_ack = 0;
	pgmn_dev->state = MSM_JPEG_RESET;
	spin_unlock_irqrestore(&pgmn_dev->reset_lock, flags);

	return 0;
	}

	void msm_jpeg_core_release(struct msm_jpeg_device *pgmn_dev)
	{
	int i = 0;

	for (i = 0; i < 2; i++) {
	if (pgmn_dev->we_pingpong_buf.buf_status[i] &&
	pgmn_dev->release_buf)
	msm_jpeg_platform_p2v(pgmn_dev->iommu_hdl,
	pgmn_dev->we_pingpong_buf.buf[i].ion_fd);
	pgmn_dev->we_pingpong_buf.buf_status[i] = 0;
	}
	}

	void msm_jpeg_core_init(struct msm_jpeg_device *pgmn_dev)
	{
	init_waitqueue_head(&pgmn_dev->reset_wait);
	spin_lock_init(&pgmn_dev->reset_lock);
	}

	int msm_jpeg_core_fe_start(struct msm_jpeg_device *pgmn_dev)
	{
	msm_jpeg_hw_fe_start(pgmn_dev->base);
	return 0;
	}

	/* fetch engine */
	int msm_jpeg_core_fe_buf_update(struct msm_jpeg_device *pgmn_dev,
	struct msm_jpeg_core_buf *buf)
	{
	int rc = 0;

	if (buf->cbcr_len == 0)
	buf->cbcr_buffer_addr = 0x0;

	JPEG_DBG("%s:%d] 0x%08x %d 0x%08x %d\n", __func__, __LINE__,
	(int) buf->y_buffer_addr, buf->y_len,
	(int) buf->cbcr_buffer_addr, buf->cbcr_len);

	if (pgmn_dev->core_type == MSM_JPEG_CORE_CODEC) {
	rc = msm_jpeg_hw_pingpong_update(&pgmn_dev->fe_pingpong_buf,
	buf, pgmn_dev->base);
	if (rc < 0)
	return rc;
	msm_jpeg_hw_fe_mmu_prefetch(buf, pgmn_dev->base,
	pgmn_dev->decode_flag);
	} else {
	rc = msm_jpegdma_hw_pingpong_update(
	&pgmn_dev->fe_pingpong_buf, buf, pgmn_dev->base);
	if (rc < 0)
	return rc;
	msm_jpegdma_hw_fe_mmu_prefetch(buf, pgmn_dev->base);
	}

	return rc;
	}

	static void *msm_jpeg_core_fe_pingpong_irq(int jpeg_irq_status,
	struct msm_jpeg_device *pgmn_dev)
	{
	return msm_jpeg_hw_pingpong_irq(&pgmn_dev->fe_pingpong_buf);
	}

	/* write engine */
	int msm_jpeg_core_we_buf_update(struct msm_jpeg_device *pgmn_dev,
	struct msm_jpeg_core_buf *buf) {

	JPEG_DBG("%s:%d] 0x%08x 0x%08x %d\n", __func__, __LINE__,
	(int) buf->y_buffer_addr, (int) buf->cbcr_buffer_addr,
	buf->y_len);

	pgmn_dev->we_pingpong_buf.buf[0] = *buf;
	pgmn_dev->we_pingpong_buf.buf_status[0] = 1;

	if (pgmn_dev->core_type == MSM_JPEG_CORE_CODEC) {
	msm_jpeg_hw_we_buffer_update(
	&pgmn_dev->we_pingpong_buf.buf[0], 0, pgmn_dev->base);
	msm_jpeg_hw_we_mmu_prefetch(buf, pgmn_dev->base,
	pgmn_dev->decode_flag);
	} else {
	msm_jpegdma_hw_we_buffer_update(
	&pgmn_dev->we_pingpong_buf.buf[0], 0, pgmn_dev->base);
	msm_jpegdma_hw_we_mmu_prefetch(buf, pgmn_dev->base);
	}

	return 0;
	}

	int msm_jpeg_core_we_buf_reset(struct msm_jpeg_device *pgmn_dev,
	struct msm_jpeg_hw_buf *buf)
	{
	int i = 0;

	for (i = 0; i < 2; i++) {
	if (pgmn_dev->we_pingpong_buf.buf[i].y_buffer_addr
	== buf->y_buffer_addr)
	pgmn_dev->we_pingpong_buf.buf_status[i] = 0;
	}
	return 0;
	}

	static void *msm_jpeg_core_we_pingpong_irq(int jpeg_irq_status,
	struct msm_jpeg_device *pgmn_dev)
	{
	JPEG_DBG("%s:%d]\n", __func__, __LINE__);

	return msm_jpeg_hw_pingpong_irq(&pgmn_dev->we_pingpong_buf);
	}

	static void *msm_jpeg_core_framedone_irq(int jpeg_irq_status,
	struct msm_jpeg_device *pgmn_dev)
	{
	struct msm_jpeg_hw_buf *buf_p;

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

	buf_p = msm_jpeg_hw_pingpong_active_buffer(
	&pgmn_dev->we_pingpong_buf);
	if (buf_p && !pgmn_dev->decode_flag) {
	buf_p->framedone_len =
	msm_jpeg_hw_encode_output_size(pgmn_dev->base);
	JPEG_DBG("%s:%d] framedone_len %d\n", __func__, __LINE__,
	buf_p->framedone_len);
	}

	return buf_p;
	}

	static void *msm_jpeg_core_reset_ack_irq(int jpeg_irq_status,
	struct msm_jpeg_device *pgmn_dev)
	{
	/* @todo return the status back to msm_jpeg_core_reset */
	JPEG_DBG("%s:%d]\n", __func__, __LINE__);
	return NULL;
	}

	static void *msm_jpeg_core_err_irq(int jpeg_irq_status,
	struct msm_jpeg_device *pgmn_dev)
	{
	JPEG_PR_ERR("%s: Error %x\n", __func__, jpeg_irq_status);
	return NULL;
	}

	static int (msm_jpeg_irq_handler)(int, void , void *);

	static void msm_jpeg_core_return_buffers(struct msm_jpeg_device *pgmn_dev,
	int jpeg_irq_status)
	{
	void *data = NULL;

	data = msm_jpeg_core_fe_pingpong_irq(jpeg_irq_status,
	pgmn_dev);
	if (msm_jpeg_irq_handler)
	msm_jpeg_irq_handler(MSM_JPEG_HW_MASK_COMP_FE,
	pgmn_dev, data);
	data = msm_jpeg_core_we_pingpong_irq(jpeg_irq_status,
	pgmn_dev);
	if (msm_jpeg_irq_handler)
	msm_jpeg_irq_handler(MSM_JPEG_HW_MASK_COMP_WE,
	pgmn_dev, data);
	}

	irqreturn_t msm_jpeg_core_irq(int irq_num, void *context)
	{
	void *data = NULL;
	unsigned long flags;
	int jpeg_irq_status;
	struct msm_jpeg_device pgmn_dev = (struct msm_jpeg_device )context;

	JPEG_DBG("%s:%d] irq_num = %d\n", __func__, __LINE__, irq_num);

	jpeg_irq_status = msm_jpeg_hw_irq_get_status(pgmn_dev->base);

	JPEG_DBG("%s:%d] jpeg_irq_status = %0x\n", __func__, __LINE__,
	jpeg_irq_status);

	/For reset and framedone IRQs, clear all bits/
	if (pgmn_dev->state == MSM_JPEG_IDLE) {
	JPEG_DBG_HIGH("%s %d ] Error IRQ received state %d",
	__func__, __LINE__, pgmn_dev->state);
	JPEG_DBG_HIGH("%s %d ] Ignoring the Error", __func__,
	__LINE__);
	msm_jpeg_hw_irq_clear(JPEG_IRQ_CLEAR_BMSK,
	JPEG_IRQ_CLEAR_ALL, pgmn_dev->base);
	return IRQ_HANDLED;
	} else if (jpeg_irq_status & 0x10000000) {
	msm_jpeg_hw_irq_clear(JPEG_IRQ_CLEAR_BMSK,
	JPEG_IRQ_CLEAR_ALL, pgmn_dev->base);
	} else if (jpeg_irq_status & 0x1) {
	msm_jpeg_hw_irq_clear(JPEG_IRQ_CLEAR_BMSK,
	JPEG_IRQ_CLEAR_ALL, pgmn_dev->base);
	if (pgmn_dev->decode_flag)
	msm_jpeg_decode_status(pgmn_dev->base);
	} else {
	msm_jpeg_hw_irq_clear(JPEG_IRQ_CLEAR_BMSK,
	jpeg_irq_status, pgmn_dev->base);
	}

	if (msm_jpeg_hw_irq_is_frame_done(jpeg_irq_status)) {
	/* send fe ping pong irq */
	JPEG_DBG_HIGH("%s:%d] Session done\n", __func__, __LINE__);
	data = msm_jpeg_core_fe_pingpong_irq(jpeg_irq_status,
	pgmn_dev);
	if (msm_jpeg_irq_handler)
	msm_jpeg_irq_handler(MSM_JPEG_HW_MASK_COMP_FE,
	context, data);
	data = msm_jpeg_core_framedone_irq(jpeg_irq_status,
	pgmn_dev);
	if (msm_jpeg_irq_handler)
	msm_jpeg_irq_handler(
	MSM_JPEG_HW_MASK_COMP_FRAMEDONE,
	context, data);
	pgmn_dev->state = MSM_JPEG_INIT;
	}
	if (msm_jpeg_hw_irq_is_reset_ack(jpeg_irq_status)) {
	data = msm_jpeg_core_reset_ack_irq(jpeg_irq_status,
	pgmn_dev);
	spin_lock_irqsave(&pgmn_dev->reset_lock, flags);
	pgmn_dev->reset_done_ack = 1;
	spin_unlock_irqrestore(&pgmn_dev->reset_lock, flags);
	wake_up(&pgmn_dev->reset_wait);
	if (msm_jpeg_irq_handler)
	msm_jpeg_irq_handler(
	MSM_JPEG_HW_MASK_COMP_RESET_ACK,
	context, data);
	}

	/* Unexpected/unintended HW interrupt */
	if (msm_jpeg_hw_irq_is_err(jpeg_irq_status)) {
	if (pgmn_dev->state != MSM_JPEG_EXECUTING) {
	/Clear all the bits and ignore the IRQ/
	JPEG_DBG_HIGH("%s %d ] Error IRQ received state %d",
	__func__, __LINE__, pgmn_dev->state);
	JPEG_DBG_HIGH("%s %d ] Ignoring the Error", __func__,
	__LINE__);
	msm_jpeg_hw_irq_clear(JPEG_IRQ_CLEAR_BMSK,
	JPEG_IRQ_CLEAR_ALL, pgmn_dev->base);
	} else {
	if (pgmn_dev->decode_flag)
	msm_jpeg_decode_status(pgmn_dev->base);
	msm_jpeg_core_return_buffers(pgmn_dev, jpeg_irq_status);
	data = msm_jpeg_core_err_irq(jpeg_irq_status, pgmn_dev);
	if (msm_jpeg_irq_handler) {
	msm_jpeg_irq_handler(MSM_JPEG_HW_MASK_COMP_ERR,
	context, data);
	}
	}
	}

	return IRQ_HANDLED;
	}

	irqreturn_t msm_jpegdma_core_irq(int irq_num, void *context)
	{
	void *data = NULL;
	unsigned long flags;
	int jpeg_irq_status;
	struct msm_jpeg_device *pgmn_dev = context;

	JPEG_DBG("%s:%d] irq_num = %d\n", __func__, __LINE__, irq_num);

	jpeg_irq_status = msm_jpegdma_hw_irq_get_status(pgmn_dev->base);

	JPEG_DBG("%s:%d] jpeg_irq_status = %0x\n", __func__, __LINE__,
	jpeg_irq_status);

	/For reset and framedone IRQs, clear all bits/
	if (pgmn_dev->state == MSM_JPEG_IDLE) {
	JPEG_DBG_HIGH("%s %d ] Error IRQ received state %d",
	__func__, __LINE__, pgmn_dev->state);
	JPEG_DBG_HIGH("%s %d ] Ignoring the Error", __func__,
	__LINE__);
	msm_jpegdma_hw_irq_clear(JPEGDMA_IRQ_CLEAR_BMSK,
	JPEGDMA_IRQ_CLEAR_ALL, pgmn_dev->base);
	return IRQ_HANDLED;
	} else if (jpeg_irq_status & 0x00000400) {
	msm_jpegdma_hw_irq_clear(JPEGDMA_IRQ_CLEAR_BMSK,
	JPEGDMA_IRQ_CLEAR_ALL, pgmn_dev->base);
	} else if (jpeg_irq_status & 0x1) {
	msm_jpegdma_hw_irq_clear(JPEGDMA_IRQ_CLEAR_BMSK,
	JPEGDMA_IRQ_CLEAR_ALL, pgmn_dev->base);
	} else {
	msm_jpegdma_hw_irq_clear(JPEGDMA_IRQ_CLEAR_BMSK,
	jpeg_irq_status, pgmn_dev->base);
	}

	if (msm_jpegdma_hw_irq_is_frame_done(jpeg_irq_status)) {
	/* send fe ping pong irq */
	JPEG_DBG_HIGH("%s:%d] Session done\n", __func__, __LINE__);
	data = msm_jpeg_core_fe_pingpong_irq(jpeg_irq_status,
	pgmn_dev);
	if (msm_jpeg_irq_handler)
	msm_jpeg_irq_handler(MSM_JPEG_HW_MASK_COMP_FE,
	context, data);
	data = msm_jpeg_core_framedone_irq(jpeg_irq_status,
	pgmn_dev);
	if (msm_jpeg_irq_handler)
	msm_jpeg_irq_handler(
	MSM_JPEG_HW_MASK_COMP_FRAMEDONE,
	context, data);
	pgmn_dev->state = MSM_JPEG_INIT;
	}
	if (msm_jpegdma_hw_irq_is_reset_ack(jpeg_irq_status)) {
	data = msm_jpeg_core_reset_ack_irq(jpeg_irq_status,
	pgmn_dev);
	spin_lock_irqsave(&pgmn_dev->reset_lock, flags);
	pgmn_dev->reset_done_ack = 1;
	spin_unlock_irqrestore(&pgmn_dev->reset_lock, flags);
	wake_up(&pgmn_dev->reset_wait);
	if (msm_jpeg_irq_handler)
	msm_jpeg_irq_handler(
	MSM_JPEG_HW_MASK_COMP_RESET_ACK,
	context, data);
	}

	return IRQ_HANDLED;
	}

	void msm_jpeg_core_irq_install(int (irq_handler) (int, void , void *))
	{
	msm_jpeg_irq_handler = irq_handler;
	}

	void msm_jpeg_core_irq_remove(void)
	{
	msm_jpeg_irq_handler = NULL;
	}