598 lines
16 KiB
C
598 lines
16 KiB
C
/*
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* Copyright 2004-2015 Freescale Semiconductor, Inc. All Rights Reserved.
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*/
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/*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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/*!
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* @file ipu_prp_enc.c
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*
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* @brief IPU Use case for PRP-ENC
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*
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* @ingroup IPU
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*/
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#include <linux/module.h>
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#include <linux/dma-mapping.h>
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#include <linux/platform_device.h>
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#include <linux/ipu.h>
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#include <linux/mipi_csi2.h>
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#include "mxc_v4l2_capture.h"
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#include "ipu_prp_sw.h"
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#ifdef CAMERA_DBG
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#define CAMERA_TRACE(x) (printk)x
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#else
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#define CAMERA_TRACE(x)
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#endif
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static ipu_rotate_mode_t grotation = IPU_ROTATE_NONE;
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/*
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* Function definitions
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*/
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/*!
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* IPU ENC callback function.
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*
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* @param irq int irq line
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* @param dev_id void * device id
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*
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* @return status IRQ_HANDLED for handled
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*/
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static irqreturn_t prp_enc_callback(int irq, void *dev_id)
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{
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cam_data *cam = (cam_data *) dev_id;
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if (cam->enc_callback == NULL)
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return IRQ_HANDLED;
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cam->enc_callback(irq, dev_id);
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return IRQ_HANDLED;
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}
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/*!
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* PrpENC enable channel setup function
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*
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* @param cam struct cam_data * mxc capture instance
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*
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* @return status
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*/
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static int prp_enc_setup(cam_data *cam)
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{
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ipu_channel_params_t enc;
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int err = 0;
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dma_addr_t dummy = cam->dummy_frame.buffer.m.offset;
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#ifdef CONFIG_MXC_MIPI_CSI2
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void *mipi_csi2_info;
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int ipu_id;
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int csi_id;
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#endif
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CAMERA_TRACE("In prp_enc_setup\n");
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if (!cam) {
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printk(KERN_ERR "cam private is NULL\n");
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return -ENXIO;
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}
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memset(&enc, 0, sizeof(ipu_channel_params_t));
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ipu_csi_get_window_size(cam->ipu, &enc.csi_prp_enc_mem.in_width,
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&enc.csi_prp_enc_mem.in_height, cam->csi);
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enc.csi_prp_enc_mem.in_pixel_fmt = IPU_PIX_FMT_UYVY;
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enc.csi_prp_enc_mem.out_width = cam->v2f.fmt.pix.width;
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enc.csi_prp_enc_mem.out_height = cam->v2f.fmt.pix.height;
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enc.csi_prp_enc_mem.csi = cam->csi;
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if (cam->rotation >= IPU_ROTATE_90_RIGHT) {
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enc.csi_prp_enc_mem.out_width = cam->v2f.fmt.pix.height;
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enc.csi_prp_enc_mem.out_height = cam->v2f.fmt.pix.width;
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}
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if (cam->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_YUV420) {
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enc.csi_prp_enc_mem.out_pixel_fmt = IPU_PIX_FMT_YUV420P;
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pr_info("YUV420\n");
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} else if (cam->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_YVU420) {
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enc.csi_prp_enc_mem.out_pixel_fmt = IPU_PIX_FMT_YVU420P;
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pr_info("YVU420\n");
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} else if (cam->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_YUV422P) {
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enc.csi_prp_enc_mem.out_pixel_fmt = IPU_PIX_FMT_YUV422P;
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pr_info("YUV422P\n");
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} else if (cam->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_YUYV) {
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enc.csi_prp_enc_mem.out_pixel_fmt = IPU_PIX_FMT_YUYV;
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pr_info("YUYV\n");
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} else if (cam->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_UYVY) {
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enc.csi_prp_enc_mem.out_pixel_fmt = IPU_PIX_FMT_UYVY;
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pr_info("UYVY\n");
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} else if (cam->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_NV12) {
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enc.csi_prp_enc_mem.out_pixel_fmt = IPU_PIX_FMT_NV12;
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pr_info("NV12\n");
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} else if (cam->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_BGR24) {
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enc.csi_prp_enc_mem.out_pixel_fmt = IPU_PIX_FMT_BGR24;
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pr_info("BGR24\n");
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} else if (cam->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_RGB24) {
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enc.csi_prp_enc_mem.out_pixel_fmt = IPU_PIX_FMT_RGB24;
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pr_info("RGB24\n");
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} else if (cam->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_RGB565) {
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enc.csi_prp_enc_mem.out_pixel_fmt = IPU_PIX_FMT_RGB565;
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pr_info("RGB565\n");
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} else if (cam->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_BGR32) {
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enc.csi_prp_enc_mem.out_pixel_fmt = IPU_PIX_FMT_BGR32;
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pr_info("BGR32\n");
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} else if (cam->v2f.fmt.pix.pixelformat == V4L2_PIX_FMT_RGB32) {
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enc.csi_prp_enc_mem.out_pixel_fmt = IPU_PIX_FMT_RGB32;
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pr_info("RGB32\n");
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} else {
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printk(KERN_ERR "format not supported\n");
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return -EINVAL;
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}
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#ifdef CONFIG_MXC_MIPI_CSI2
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mipi_csi2_info = mipi_csi2_get_info();
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if (mipi_csi2_info) {
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if (mipi_csi2_get_status(mipi_csi2_info)) {
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ipu_id = mipi_csi2_get_bind_ipu(mipi_csi2_info);
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csi_id = mipi_csi2_get_bind_csi(mipi_csi2_info);
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if (cam->ipu == ipu_get_soc(ipu_id)
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&& cam->csi == csi_id) {
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enc.csi_prp_enc_mem.mipi_en = true;
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enc.csi_prp_enc_mem.mipi_vc =
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mipi_csi2_get_virtual_channel(mipi_csi2_info);
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enc.csi_prp_enc_mem.mipi_id =
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mipi_csi2_get_datatype(mipi_csi2_info);
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mipi_csi2_pixelclk_enable(mipi_csi2_info);
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} else {
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enc.csi_prp_enc_mem.mipi_en = false;
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enc.csi_prp_enc_mem.mipi_vc = 0;
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enc.csi_prp_enc_mem.mipi_id = 0;
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}
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} else {
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enc.csi_prp_enc_mem.mipi_en = false;
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enc.csi_prp_enc_mem.mipi_vc = 0;
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enc.csi_prp_enc_mem.mipi_id = 0;
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}
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}
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#endif
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err = ipu_init_channel(cam->ipu, CSI_PRP_ENC_MEM, &enc);
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if (err != 0) {
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printk(KERN_ERR "ipu_init_channel %d\n", err);
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return err;
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}
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grotation = cam->rotation;
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if (cam->rotation >= IPU_ROTATE_90_RIGHT) {
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if (cam->rot_enc_bufs_vaddr[0]) {
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dma_free_coherent(0, cam->rot_enc_buf_size[0],
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cam->rot_enc_bufs_vaddr[0],
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cam->rot_enc_bufs[0]);
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}
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if (cam->rot_enc_bufs_vaddr[1]) {
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dma_free_coherent(0, cam->rot_enc_buf_size[1],
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cam->rot_enc_bufs_vaddr[1],
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cam->rot_enc_bufs[1]);
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}
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cam->rot_enc_buf_size[0] =
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PAGE_ALIGN(cam->v2f.fmt.pix.sizeimage);
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cam->rot_enc_bufs_vaddr[0] =
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(void *)dma_alloc_coherent(0, cam->rot_enc_buf_size[0],
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&cam->rot_enc_bufs[0],
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GFP_DMA | GFP_KERNEL);
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if (!cam->rot_enc_bufs_vaddr[0]) {
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printk(KERN_ERR "alloc enc_bufs0\n");
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return -ENOMEM;
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}
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cam->rot_enc_buf_size[1] =
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PAGE_ALIGN(cam->v2f.fmt.pix.sizeimage);
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cam->rot_enc_bufs_vaddr[1] =
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(void *)dma_alloc_coherent(0, cam->rot_enc_buf_size[1],
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&cam->rot_enc_bufs[1],
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GFP_DMA | GFP_KERNEL);
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if (!cam->rot_enc_bufs_vaddr[1]) {
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dma_free_coherent(0, cam->rot_enc_buf_size[0],
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cam->rot_enc_bufs_vaddr[0],
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cam->rot_enc_bufs[0]);
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cam->rot_enc_bufs_vaddr[0] = NULL;
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cam->rot_enc_bufs[0] = 0;
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printk(KERN_ERR "alloc enc_bufs1\n");
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return -ENOMEM;
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}
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err = ipu_init_channel_buffer(cam->ipu, CSI_PRP_ENC_MEM,
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IPU_OUTPUT_BUFFER,
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enc.csi_prp_enc_mem.out_pixel_fmt,
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enc.csi_prp_enc_mem.out_width,
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enc.csi_prp_enc_mem.out_height,
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enc.csi_prp_enc_mem.out_width,
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IPU_ROTATE_NONE,
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cam->rot_enc_bufs[0],
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cam->rot_enc_bufs[1], 0, 0, 0);
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if (err != 0) {
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printk(KERN_ERR "CSI_PRP_ENC_MEM err\n");
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return err;
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}
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err = ipu_init_channel(cam->ipu, MEM_ROT_ENC_MEM, NULL);
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if (err != 0) {
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printk(KERN_ERR "MEM_ROT_ENC_MEM channel err\n");
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return err;
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}
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err = ipu_init_channel_buffer(cam->ipu, MEM_ROT_ENC_MEM,
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IPU_INPUT_BUFFER,
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enc.csi_prp_enc_mem.out_pixel_fmt,
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enc.csi_prp_enc_mem.out_width,
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enc.csi_prp_enc_mem.out_height,
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enc.csi_prp_enc_mem.out_width,
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cam->rotation,
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cam->rot_enc_bufs[0],
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cam->rot_enc_bufs[1], 0, 0, 0);
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if (err != 0) {
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printk(KERN_ERR "MEM_ROT_ENC_MEM input buffer\n");
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return err;
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}
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err =
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ipu_init_channel_buffer(cam->ipu, MEM_ROT_ENC_MEM,
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IPU_OUTPUT_BUFFER,
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enc.csi_prp_enc_mem.out_pixel_fmt,
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enc.csi_prp_enc_mem.out_height,
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enc.csi_prp_enc_mem.out_width,
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cam->v2f.fmt.pix.bytesperline /
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bytes_per_pixel(enc.csi_prp_enc_mem.
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out_pixel_fmt),
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IPU_ROTATE_NONE,
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dummy, dummy, 0,
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cam->offset.u_offset,
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cam->offset.v_offset);
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if (err != 0) {
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printk(KERN_ERR "MEM_ROT_ENC_MEM output buffer\n");
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return err;
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}
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err = ipu_link_channels(cam->ipu,
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CSI_PRP_ENC_MEM, MEM_ROT_ENC_MEM);
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if (err < 0) {
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printk(KERN_ERR
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"link CSI_PRP_ENC_MEM-MEM_ROT_ENC_MEM\n");
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return err;
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}
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err = ipu_enable_channel(cam->ipu, CSI_PRP_ENC_MEM);
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if (err < 0) {
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printk(KERN_ERR "ipu_enable_channel CSI_PRP_ENC_MEM\n");
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return err;
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}
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err = ipu_enable_channel(cam->ipu, MEM_ROT_ENC_MEM);
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if (err < 0) {
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printk(KERN_ERR "ipu_enable_channel MEM_ROT_ENC_MEM\n");
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return err;
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}
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ipu_select_buffer(cam->ipu, CSI_PRP_ENC_MEM,
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IPU_OUTPUT_BUFFER, 0);
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ipu_select_buffer(cam->ipu, CSI_PRP_ENC_MEM,
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IPU_OUTPUT_BUFFER, 1);
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} else {
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err =
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ipu_init_channel_buffer(cam->ipu, CSI_PRP_ENC_MEM,
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IPU_OUTPUT_BUFFER,
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enc.csi_prp_enc_mem.out_pixel_fmt,
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enc.csi_prp_enc_mem.out_width,
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enc.csi_prp_enc_mem.out_height,
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cam->v2f.fmt.pix.bytesperline /
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bytes_per_pixel(enc.csi_prp_enc_mem.
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out_pixel_fmt),
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cam->rotation,
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dummy, dummy, 0,
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cam->offset.u_offset,
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cam->offset.v_offset);
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if (err != 0) {
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printk(KERN_ERR "CSI_PRP_ENC_MEM output buffer\n");
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return err;
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}
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err = ipu_enable_channel(cam->ipu, CSI_PRP_ENC_MEM);
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if (err < 0) {
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printk(KERN_ERR "ipu_enable_channel CSI_PRP_ENC_MEM\n");
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return err;
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}
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}
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return err;
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}
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/*!
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* function to update physical buffer address for encorder IDMA channel
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*
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* @param private pointer to cam_data structure
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* @param eba physical buffer address for encorder IDMA channel
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*
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* @return status
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*/
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static int prp_enc_eba_update(void *private, dma_addr_t eba)
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{
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int err = 0;
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cam_data *cam = (cam_data *) private;
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struct ipu_soc *ipu = cam->ipu;
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int *buffer_num = &cam->ping_pong_csi;
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pr_debug("eba %x\n", eba);
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if (grotation >= IPU_ROTATE_90_RIGHT) {
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err = ipu_update_channel_buffer(ipu, MEM_ROT_ENC_MEM,
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IPU_OUTPUT_BUFFER, *buffer_num,
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eba);
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} else {
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err = ipu_update_channel_buffer(ipu, CSI_PRP_ENC_MEM,
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IPU_OUTPUT_BUFFER, *buffer_num,
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eba);
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}
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if (err != 0) {
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if (grotation >= IPU_ROTATE_90_RIGHT) {
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ipu_clear_buffer_ready(ipu, MEM_ROT_ENC_MEM,
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IPU_OUTPUT_BUFFER,
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*buffer_num);
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err = ipu_update_channel_buffer(ipu, MEM_ROT_ENC_MEM,
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IPU_OUTPUT_BUFFER,
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*buffer_num,
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eba);
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} else {
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ipu_clear_buffer_ready(ipu, CSI_PRP_ENC_MEM,
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IPU_OUTPUT_BUFFER,
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*buffer_num);
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err = ipu_update_channel_buffer(ipu, CSI_PRP_ENC_MEM,
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IPU_OUTPUT_BUFFER,
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*buffer_num,
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eba);
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}
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if (err != 0) {
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pr_err("ERROR: v4l2 capture: fail to update "
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"buf%d\n", *buffer_num);
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return err;
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}
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}
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if (grotation >= IPU_ROTATE_90_RIGHT) {
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ipu_select_buffer(ipu, MEM_ROT_ENC_MEM, IPU_OUTPUT_BUFFER,
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*buffer_num);
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} else {
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ipu_select_buffer(ipu, CSI_PRP_ENC_MEM, IPU_OUTPUT_BUFFER,
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*buffer_num);
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}
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*buffer_num = (*buffer_num == 0) ? 1 : 0;
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return 0;
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}
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/*!
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* Enable encoder task
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* @param private struct cam_data * mxc capture instance
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*
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* @return status
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*/
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static int prp_enc_enabling_tasks(void *private)
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{
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cam_data *cam = (cam_data *) private;
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int err = 0;
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CAMERA_TRACE("IPU:In prp_enc_enabling_tasks\n");
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cam->dummy_frame.vaddress = dma_alloc_coherent(0,
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PAGE_ALIGN(cam->v2f.fmt.pix.sizeimage),
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&cam->dummy_frame.paddress,
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GFP_DMA | GFP_KERNEL);
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if (cam->dummy_frame.vaddress == 0) {
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pr_err("ERROR: v4l2 capture: Allocate dummy frame "
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"failed.\n");
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return -ENOBUFS;
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}
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cam->dummy_frame.buffer.type = V4L2_BUF_TYPE_PRIVATE;
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cam->dummy_frame.buffer.length =
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PAGE_ALIGN(cam->v2f.fmt.pix.sizeimage);
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cam->dummy_frame.buffer.m.offset = cam->dummy_frame.paddress;
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if (cam->rotation >= IPU_ROTATE_90_RIGHT) {
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err = ipu_request_irq(cam->ipu, IPU_IRQ_PRP_ENC_ROT_OUT_EOF,
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prp_enc_callback, 0, "Mxc Camera", cam);
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} else {
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err = ipu_request_irq(cam->ipu, IPU_IRQ_PRP_ENC_OUT_EOF,
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prp_enc_callback, 0, "Mxc Camera", cam);
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}
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if (err != 0) {
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printk(KERN_ERR "Error registering rot irq\n");
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return err;
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}
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err = prp_enc_setup(cam);
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if (err != 0) {
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printk(KERN_ERR "prp_enc_setup %d\n", err);
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return err;
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}
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return err;
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}
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/*!
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* Disable encoder task
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* @param private struct cam_data * mxc capture instance
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*
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* @return int
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*/
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static int prp_enc_disabling_tasks(void *private)
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{
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cam_data *cam = (cam_data *) private;
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int err = 0;
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#ifdef CONFIG_MXC_MIPI_CSI2
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void *mipi_csi2_info;
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int ipu_id;
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int csi_id;
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#endif
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if (cam->rotation >= IPU_ROTATE_90_RIGHT) {
|
|
ipu_free_irq(cam->ipu, IPU_IRQ_PRP_ENC_ROT_OUT_EOF, cam);
|
|
ipu_unlink_channels(cam->ipu, CSI_PRP_ENC_MEM, MEM_ROT_ENC_MEM);
|
|
}
|
|
|
|
err = ipu_disable_channel(cam->ipu, CSI_PRP_ENC_MEM, true);
|
|
if (cam->rotation >= IPU_ROTATE_90_RIGHT)
|
|
err |= ipu_disable_channel(cam->ipu, MEM_ROT_ENC_MEM, true);
|
|
|
|
ipu_uninit_channel(cam->ipu, CSI_PRP_ENC_MEM);
|
|
if (cam->rotation >= IPU_ROTATE_90_RIGHT)
|
|
ipu_uninit_channel(cam->ipu, MEM_ROT_ENC_MEM);
|
|
|
|
if (cam->dummy_frame.vaddress != 0) {
|
|
dma_free_coherent(0, cam->dummy_frame.buffer.length,
|
|
cam->dummy_frame.vaddress,
|
|
cam->dummy_frame.paddress);
|
|
cam->dummy_frame.vaddress = 0;
|
|
}
|
|
|
|
#ifdef CONFIG_MXC_MIPI_CSI2
|
|
mipi_csi2_info = mipi_csi2_get_info();
|
|
|
|
if (mipi_csi2_info) {
|
|
if (mipi_csi2_get_status(mipi_csi2_info)) {
|
|
ipu_id = mipi_csi2_get_bind_ipu(mipi_csi2_info);
|
|
csi_id = mipi_csi2_get_bind_csi(mipi_csi2_info);
|
|
|
|
if (cam->ipu == ipu_get_soc(ipu_id)
|
|
&& cam->csi == csi_id)
|
|
mipi_csi2_pixelclk_disable(mipi_csi2_info);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return err;
|
|
}
|
|
|
|
/*!
|
|
* Enable csi
|
|
* @param private struct cam_data * mxc capture instance
|
|
*
|
|
* @return status
|
|
*/
|
|
static int prp_enc_enable_csi(void *private)
|
|
{
|
|
cam_data *cam = (cam_data *) private;
|
|
|
|
return ipu_enable_csi(cam->ipu, cam->csi);
|
|
}
|
|
|
|
/*!
|
|
* Disable csi
|
|
* @param private struct cam_data * mxc capture instance
|
|
*
|
|
* @return status
|
|
*/
|
|
static int prp_enc_disable_csi(void *private)
|
|
{
|
|
cam_data *cam = (cam_data *) private;
|
|
|
|
/* free csi eof irq firstly.
|
|
* when disable csi, wait for idmac eof.
|
|
* it requests eof irq again */
|
|
if (cam->rotation < IPU_ROTATE_90_RIGHT)
|
|
ipu_free_irq(cam->ipu, IPU_IRQ_PRP_ENC_OUT_EOF, cam);
|
|
|
|
return ipu_disable_csi(cam->ipu, cam->csi);
|
|
}
|
|
|
|
/*!
|
|
* function to select PRP-ENC as the working path
|
|
*
|
|
* @param private struct cam_data * mxc capture instance
|
|
*
|
|
* @return int
|
|
*/
|
|
int prp_enc_select(void *private)
|
|
{
|
|
cam_data *cam = (cam_data *) private;
|
|
int err = 0;
|
|
|
|
if (cam) {
|
|
cam->enc_update_eba = prp_enc_eba_update;
|
|
cam->enc_enable = prp_enc_enabling_tasks;
|
|
cam->enc_disable = prp_enc_disabling_tasks;
|
|
cam->enc_enable_csi = prp_enc_enable_csi;
|
|
cam->enc_disable_csi = prp_enc_disable_csi;
|
|
} else {
|
|
err = -EIO;
|
|
}
|
|
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(prp_enc_select);
|
|
|
|
/*!
|
|
* function to de-select PRP-ENC as the working path
|
|
*
|
|
* @param private struct cam_data * mxc capture instance
|
|
*
|
|
* @return int
|
|
*/
|
|
int prp_enc_deselect(void *private)
|
|
{
|
|
cam_data *cam = (cam_data *) private;
|
|
int err = 0;
|
|
|
|
if (cam) {
|
|
cam->enc_update_eba = NULL;
|
|
cam->enc_enable = NULL;
|
|
cam->enc_disable = NULL;
|
|
cam->enc_enable_csi = NULL;
|
|
cam->enc_disable_csi = NULL;
|
|
if (cam->rot_enc_bufs_vaddr[0]) {
|
|
dma_free_coherent(0, cam->rot_enc_buf_size[0],
|
|
cam->rot_enc_bufs_vaddr[0],
|
|
cam->rot_enc_bufs[0]);
|
|
cam->rot_enc_bufs_vaddr[0] = NULL;
|
|
cam->rot_enc_bufs[0] = 0;
|
|
}
|
|
if (cam->rot_enc_bufs_vaddr[1]) {
|
|
dma_free_coherent(0, cam->rot_enc_buf_size[1],
|
|
cam->rot_enc_bufs_vaddr[1],
|
|
cam->rot_enc_bufs[1]);
|
|
cam->rot_enc_bufs_vaddr[1] = NULL;
|
|
cam->rot_enc_bufs[1] = 0;
|
|
}
|
|
}
|
|
|
|
return err;
|
|
}
|
|
EXPORT_SYMBOL(prp_enc_deselect);
|
|
|
|
/*!
|
|
* Init the Encorder channels
|
|
*
|
|
* @return Error code indicating success or failure
|
|
*/
|
|
__init int prp_enc_init(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/*!
|
|
* Deinit the Encorder channels
|
|
*
|
|
*/
|
|
void __exit prp_enc_exit(void)
|
|
{
|
|
}
|
|
|
|
module_init(prp_enc_init);
|
|
module_exit(prp_enc_exit);
|
|
|
|
MODULE_AUTHOR("Freescale Semiconductor, Inc.");
|
|
MODULE_DESCRIPTION("IPU PRP ENC Driver");
|
|
MODULE_LICENSE("GPL");
|