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/* Copyright (c) 2013 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
*
* Author: Jacek Anaszewski <j.anaszewski@samsung.com>
*
* Register interface file for JPEG driver on Exynos4x12.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/io.h>
#include <linux/delay.h>
#include "jpeg-core.h"
#include "jpeg-hw-exynos4.h"
#include "jpeg-regs.h"
void exynos4_jpeg_sw_reset(void __iomem *base)
{
unsigned int reg;
reg = readl(base + EXYNOS4_JPEG_CNTL_REG);
writel(reg & ~EXYNOS4_SOFT_RESET_HI, base + EXYNOS4_JPEG_CNTL_REG);
ndelay(100000);
writel(reg | EXYNOS4_SOFT_RESET_HI, base + EXYNOS4_JPEG_CNTL_REG);
}
void exynos4_jpeg_set_enc_dec_mode(void __iomem *base, unsigned int mode)
{
unsigned int reg;
reg = readl(base + EXYNOS4_JPEG_CNTL_REG);
/* set exynos4_jpeg mod register */
if (mode == S5P_JPEG_DECODE) {
writel((reg & EXYNOS4_ENC_DEC_MODE_MASK) |
EXYNOS4_DEC_MODE,
base + EXYNOS4_JPEG_CNTL_REG);
} else {/* encode */
writel((reg & EXYNOS4_ENC_DEC_MODE_MASK) |
EXYNOS4_ENC_MODE,
base + EXYNOS4_JPEG_CNTL_REG);
}
}
void exynos4_jpeg_set_img_fmt(void __iomem *base, unsigned int img_fmt)
{
unsigned int reg;
reg = readl(base + EXYNOS4_IMG_FMT_REG) &
EXYNOS4_ENC_IN_FMT_MASK; /* clear except enc format */
switch (img_fmt) {
case V4L2_PIX_FMT_GREY:
reg = reg | EXYNOS4_ENC_GRAY_IMG | EXYNOS4_GRAY_IMG_IP;
break;
case V4L2_PIX_FMT_RGB32:
reg = reg | EXYNOS4_ENC_RGB_IMG |
EXYNOS4_RGB_IP_RGB_32BIT_IMG;
break;
case V4L2_PIX_FMT_RGB565:
reg = reg | EXYNOS4_ENC_RGB_IMG |
EXYNOS4_RGB_IP_RGB_16BIT_IMG;
break;
case V4L2_PIX_FMT_NV24:
reg = reg | EXYNOS4_ENC_YUV_444_IMG |
EXYNOS4_YUV_444_IP_YUV_444_2P_IMG |
EXYNOS4_SWAP_CHROMA_CBCR;
break;
case V4L2_PIX_FMT_NV42:
reg = reg | EXYNOS4_ENC_YUV_444_IMG |
EXYNOS4_YUV_444_IP_YUV_444_2P_IMG |
EXYNOS4_SWAP_CHROMA_CRCB;
break;
case V4L2_PIX_FMT_YUYV:
reg = reg | EXYNOS4_DEC_YUV_422_IMG |
EXYNOS4_YUV_422_IP_YUV_422_1P_IMG |
EXYNOS4_SWAP_CHROMA_CBCR;
break;
case V4L2_PIX_FMT_YVYU:
reg = reg | EXYNOS4_DEC_YUV_422_IMG |
EXYNOS4_YUV_422_IP_YUV_422_1P_IMG |
EXYNOS4_SWAP_CHROMA_CRCB;
break;
case V4L2_PIX_FMT_NV16:
reg = reg | EXYNOS4_DEC_YUV_422_IMG |
EXYNOS4_YUV_422_IP_YUV_422_2P_IMG |
EXYNOS4_SWAP_CHROMA_CBCR;
break;
case V4L2_PIX_FMT_NV61:
reg = reg | EXYNOS4_DEC_YUV_422_IMG |
EXYNOS4_YUV_422_IP_YUV_422_2P_IMG |
EXYNOS4_SWAP_CHROMA_CRCB;
break;
case V4L2_PIX_FMT_NV12:
reg = reg | EXYNOS4_DEC_YUV_420_IMG |
EXYNOS4_YUV_420_IP_YUV_420_2P_IMG |
EXYNOS4_SWAP_CHROMA_CBCR;
break;
case V4L2_PIX_FMT_NV21:
reg = reg | EXYNOS4_DEC_YUV_420_IMG |
EXYNOS4_YUV_420_IP_YUV_420_2P_IMG |
EXYNOS4_SWAP_CHROMA_CRCB;
break;
case V4L2_PIX_FMT_YUV420:
reg = reg | EXYNOS4_DEC_YUV_420_IMG |
EXYNOS4_YUV_420_IP_YUV_420_3P_IMG |
EXYNOS4_SWAP_CHROMA_CBCR;
break;
default:
break;
}
writel(reg, base + EXYNOS4_IMG_FMT_REG);
}
void exynos4_jpeg_set_enc_out_fmt(void __iomem *base, unsigned int out_fmt)
{
unsigned int reg;
reg = readl(base + EXYNOS4_IMG_FMT_REG) &
~EXYNOS4_ENC_FMT_MASK; /* clear enc format */
switch (out_fmt) {
case V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY:
reg = reg | EXYNOS4_ENC_FMT_GRAY;
break;
case V4L2_JPEG_CHROMA_SUBSAMPLING_444:
reg = reg | EXYNOS4_ENC_FMT_YUV_444;
break;
case V4L2_JPEG_CHROMA_SUBSAMPLING_422:
reg = reg | EXYNOS4_ENC_FMT_YUV_422;
break;
case V4L2_JPEG_CHROMA_SUBSAMPLING_420:
reg = reg | EXYNOS4_ENC_FMT_YUV_420;
break;
default:
break;
}
writel(reg, base + EXYNOS4_IMG_FMT_REG);
}
void exynos4_jpeg_set_interrupt(void __iomem *base)
{
unsigned int reg;
reg = readl(base + EXYNOS4_INT_EN_REG) & ~EXYNOS4_INT_EN_MASK;
writel(EXYNOS4_INT_EN_ALL, base + EXYNOS4_INT_EN_REG);
}
unsigned int exynos4_jpeg_get_int_status(void __iomem *base)
{
unsigned int int_status;
int_status = readl(base + EXYNOS4_INT_STATUS_REG);
return int_status;
}
unsigned int exynos4_jpeg_get_fifo_status(void __iomem *base)
{
unsigned int fifo_status;
fifo_status = readl(base + EXYNOS4_FIFO_STATUS_REG);
return fifo_status;
}
void exynos4_jpeg_set_huf_table_enable(void __iomem *base, int value)
{
unsigned int reg;
reg = readl(base + EXYNOS4_JPEG_CNTL_REG) & ~EXYNOS4_HUF_TBL_EN;
if (value == 1)
writel(reg | EXYNOS4_HUF_TBL_EN,
base + EXYNOS4_JPEG_CNTL_REG);
else
writel(reg | ~EXYNOS4_HUF_TBL_EN,
base + EXYNOS4_JPEG_CNTL_REG);
}
void exynos4_jpeg_set_sys_int_enable(void __iomem *base, int value)
{
unsigned int reg;
reg = readl(base + EXYNOS4_JPEG_CNTL_REG) & ~(EXYNOS4_SYS_INT_EN);
if (value == 1)
writel(EXYNOS4_SYS_INT_EN, base + EXYNOS4_JPEG_CNTL_REG);
else
writel(~EXYNOS4_SYS_INT_EN, base + EXYNOS4_JPEG_CNTL_REG);
}
void exynos4_jpeg_set_stream_buf_address(void __iomem *base,
unsigned int address)
{
writel(address, base + EXYNOS4_OUT_MEM_BASE_REG);
}
void exynos4_jpeg_set_stream_size(void __iomem *base,
unsigned int x_value, unsigned int y_value)
{
writel(0x0, base + EXYNOS4_JPEG_IMG_SIZE_REG); /* clear */
writel(EXYNOS4_X_SIZE(x_value) | EXYNOS4_Y_SIZE(y_value),
base + EXYNOS4_JPEG_IMG_SIZE_REG);
}
void exynos4_jpeg_set_frame_buf_address(void __iomem *base,
struct s5p_jpeg_addr *exynos4_jpeg_addr)
{
writel(exynos4_jpeg_addr->y, base + EXYNOS4_IMG_BA_PLANE_1_REG);
writel(exynos4_jpeg_addr->cb, base + EXYNOS4_IMG_BA_PLANE_2_REG);
writel(exynos4_jpeg_addr->cr, base + EXYNOS4_IMG_BA_PLANE_3_REG);
}
void exynos4_jpeg_set_encode_tbl_select(void __iomem *base,
enum exynos4_jpeg_img_quality_level level)
{
unsigned int reg;
reg = EXYNOS4_Q_TBL_COMP1_0 | EXYNOS4_Q_TBL_COMP2_1 |
EXYNOS4_Q_TBL_COMP3_1 |
EXYNOS4_HUFF_TBL_COMP1_AC_0_DC_1 |
EXYNOS4_HUFF_TBL_COMP2_AC_0_DC_0 |
EXYNOS4_HUFF_TBL_COMP3_AC_1_DC_1;
writel(reg, base + EXYNOS4_TBL_SEL_REG);
}
void exynos4_jpeg_set_encode_hoff_cnt(void __iomem *base, unsigned int fmt)
{
if (fmt == V4L2_PIX_FMT_GREY)
writel(0xd2, base + EXYNOS4_HUFF_CNT_REG);
else
writel(0x1a2, base + EXYNOS4_HUFF_CNT_REG);
}
unsigned int exynos4_jpeg_get_stream_size(void __iomem *base)
{
unsigned int size;
size = readl(base + EXYNOS4_BITSTREAM_SIZE_REG);
return size;
}
void exynos4_jpeg_set_dec_bitstream_size(void __iomem *base, unsigned int size)
{
writel(size, base + EXYNOS4_BITSTREAM_SIZE_REG);
}
void exynos4_jpeg_get_frame_size(void __iomem *base,
unsigned int *width, unsigned int *height)
{
*width = (readl(base + EXYNOS4_DECODE_XY_SIZE_REG) &
EXYNOS4_DECODED_SIZE_MASK);
*height = (readl(base + EXYNOS4_DECODE_XY_SIZE_REG) >> 16) &
EXYNOS4_DECODED_SIZE_MASK;
}
unsigned int exynos4_jpeg_get_frame_fmt(void __iomem *base)
{
return readl(base + EXYNOS4_DECODE_IMG_FMT_REG) &
EXYNOS4_JPEG_DECODED_IMG_FMT_MASK;
}
void exynos4_jpeg_set_timer_count(void __iomem *base, unsigned int size)
{
writel(size, base + EXYNOS4_INT_TIMER_COUNT_REG);
}
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