// SPDX-License-Identifier: GPL-2.0-only
|
/* linux/drivers/media/platform/s5p-jpeg/jpeg-hw.h
|
*
|
* Copyright (c) 2011 Samsung Electronics Co., Ltd.
|
* http://www.samsung.com
|
*
|
* Author: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com>
|
*/
|
|
#include <linux/io.h>
|
#include <linux/videodev2.h>
|
|
#include "jpeg-core.h"
|
#include "jpeg-regs.h"
|
#include "jpeg-hw-s5p.h"
|
|
void s5p_jpeg_reset(void __iomem *regs)
|
{
|
unsigned long reg;
|
|
writel(1, regs + S5P_JPG_SW_RESET);
|
reg = readl(regs + S5P_JPG_SW_RESET);
|
/* no other way but polling for when JPEG IP becomes operational */
|
while (reg != 0) {
|
cpu_relax();
|
reg = readl(regs + S5P_JPG_SW_RESET);
|
}
|
}
|
|
void s5p_jpeg_poweron(void __iomem *regs)
|
{
|
writel(S5P_POWER_ON, regs + S5P_JPGCLKCON);
|
}
|
|
void s5p_jpeg_input_raw_mode(void __iomem *regs, unsigned long mode)
|
{
|
unsigned long reg, m;
|
|
m = S5P_MOD_SEL_565;
|
if (mode == S5P_JPEG_RAW_IN_565)
|
m = S5P_MOD_SEL_565;
|
else if (mode == S5P_JPEG_RAW_IN_422)
|
m = S5P_MOD_SEL_422;
|
|
reg = readl(regs + S5P_JPGCMOD);
|
reg &= ~S5P_MOD_SEL_MASK;
|
reg |= m;
|
writel(reg, regs + S5P_JPGCMOD);
|
}
|
|
void s5p_jpeg_proc_mode(void __iomem *regs, unsigned long mode)
|
{
|
unsigned long reg, m;
|
|
m = S5P_PROC_MODE_DECOMPR;
|
if (mode == S5P_JPEG_ENCODE)
|
m = S5P_PROC_MODE_COMPR;
|
else
|
m = S5P_PROC_MODE_DECOMPR;
|
reg = readl(regs + S5P_JPGMOD);
|
reg &= ~S5P_PROC_MODE_MASK;
|
reg |= m;
|
writel(reg, regs + S5P_JPGMOD);
|
}
|
|
void s5p_jpeg_subsampling_mode(void __iomem *regs, unsigned int mode)
|
{
|
unsigned long reg, m;
|
|
if (mode == V4L2_JPEG_CHROMA_SUBSAMPLING_420)
|
m = S5P_SUBSAMPLING_MODE_420;
|
else
|
m = S5P_SUBSAMPLING_MODE_422;
|
|
reg = readl(regs + S5P_JPGMOD);
|
reg &= ~S5P_SUBSAMPLING_MODE_MASK;
|
reg |= m;
|
writel(reg, regs + S5P_JPGMOD);
|
}
|
|
unsigned int s5p_jpeg_get_subsampling_mode(void __iomem *regs)
|
{
|
return readl(regs + S5P_JPGMOD) & S5P_SUBSAMPLING_MODE_MASK;
|
}
|
|
void s5p_jpeg_dri(void __iomem *regs, unsigned int dri)
|
{
|
unsigned long reg;
|
|
reg = readl(regs + S5P_JPGDRI_U);
|
reg &= ~0xff;
|
reg |= (dri >> 8) & 0xff;
|
writel(reg, regs + S5P_JPGDRI_U);
|
|
reg = readl(regs + S5P_JPGDRI_L);
|
reg &= ~0xff;
|
reg |= dri & 0xff;
|
writel(reg, regs + S5P_JPGDRI_L);
|
}
|
|
void s5p_jpeg_qtbl(void __iomem *regs, unsigned int t, unsigned int n)
|
{
|
unsigned long reg;
|
|
reg = readl(regs + S5P_JPG_QTBL);
|
reg &= ~S5P_QT_NUMt_MASK(t);
|
reg |= (n << S5P_QT_NUMt_SHIFT(t)) & S5P_QT_NUMt_MASK(t);
|
writel(reg, regs + S5P_JPG_QTBL);
|
}
|
|
void s5p_jpeg_htbl_ac(void __iomem *regs, unsigned int t)
|
{
|
unsigned long reg;
|
|
reg = readl(regs + S5P_JPG_HTBL);
|
reg &= ~S5P_HT_NUMt_AC_MASK(t);
|
/* this driver uses table 0 for all color components */
|
reg |= (0 << S5P_HT_NUMt_AC_SHIFT(t)) & S5P_HT_NUMt_AC_MASK(t);
|
writel(reg, regs + S5P_JPG_HTBL);
|
}
|
|
void s5p_jpeg_htbl_dc(void __iomem *regs, unsigned int t)
|
{
|
unsigned long reg;
|
|
reg = readl(regs + S5P_JPG_HTBL);
|
reg &= ~S5P_HT_NUMt_DC_MASK(t);
|
/* this driver uses table 0 for all color components */
|
reg |= (0 << S5P_HT_NUMt_DC_SHIFT(t)) & S5P_HT_NUMt_DC_MASK(t);
|
writel(reg, regs + S5P_JPG_HTBL);
|
}
|
|
void s5p_jpeg_y(void __iomem *regs, unsigned int y)
|
{
|
unsigned long reg;
|
|
reg = readl(regs + S5P_JPGY_U);
|
reg &= ~0xff;
|
reg |= (y >> 8) & 0xff;
|
writel(reg, regs + S5P_JPGY_U);
|
|
reg = readl(regs + S5P_JPGY_L);
|
reg &= ~0xff;
|
reg |= y & 0xff;
|
writel(reg, regs + S5P_JPGY_L);
|
}
|
|
void s5p_jpeg_x(void __iomem *regs, unsigned int x)
|
{
|
unsigned long reg;
|
|
reg = readl(regs + S5P_JPGX_U);
|
reg &= ~0xff;
|
reg |= (x >> 8) & 0xff;
|
writel(reg, regs + S5P_JPGX_U);
|
|
reg = readl(regs + S5P_JPGX_L);
|
reg &= ~0xff;
|
reg |= x & 0xff;
|
writel(reg, regs + S5P_JPGX_L);
|
}
|
|
void s5p_jpeg_rst_int_enable(void __iomem *regs, bool enable)
|
{
|
unsigned long reg;
|
|
reg = readl(regs + S5P_JPGINTSE);
|
reg &= ~S5P_RSTm_INT_EN_MASK;
|
if (enable)
|
reg |= S5P_RSTm_INT_EN;
|
writel(reg, regs + S5P_JPGINTSE);
|
}
|
|
void s5p_jpeg_data_num_int_enable(void __iomem *regs, bool enable)
|
{
|
unsigned long reg;
|
|
reg = readl(regs + S5P_JPGINTSE);
|
reg &= ~S5P_DATA_NUM_INT_EN_MASK;
|
if (enable)
|
reg |= S5P_DATA_NUM_INT_EN;
|
writel(reg, regs + S5P_JPGINTSE);
|
}
|
|
void s5p_jpeg_final_mcu_num_int_enable(void __iomem *regs, bool enbl)
|
{
|
unsigned long reg;
|
|
reg = readl(regs + S5P_JPGINTSE);
|
reg &= ~S5P_FINAL_MCU_NUM_INT_EN_MASK;
|
if (enbl)
|
reg |= S5P_FINAL_MCU_NUM_INT_EN;
|
writel(reg, regs + S5P_JPGINTSE);
|
}
|
|
int s5p_jpeg_timer_stat(void __iomem *regs)
|
{
|
return (int)((readl(regs + S5P_JPG_TIMER_ST) & S5P_TIMER_INT_STAT_MASK)
|
>> S5P_TIMER_INT_STAT_SHIFT);
|
}
|
|
void s5p_jpeg_clear_timer_stat(void __iomem *regs)
|
{
|
unsigned long reg;
|
|
reg = readl(regs + S5P_JPG_TIMER_SE);
|
reg &= ~S5P_TIMER_INT_STAT_MASK;
|
writel(reg, regs + S5P_JPG_TIMER_SE);
|
}
|
|
void s5p_jpeg_enc_stream_int(void __iomem *regs, unsigned long size)
|
{
|
unsigned long reg;
|
|
reg = readl(regs + S5P_JPG_ENC_STREAM_INTSE);
|
reg &= ~S5P_ENC_STREAM_BOUND_MASK;
|
reg |= S5P_ENC_STREAM_INT_EN;
|
reg |= size & S5P_ENC_STREAM_BOUND_MASK;
|
writel(reg, regs + S5P_JPG_ENC_STREAM_INTSE);
|
}
|
|
int s5p_jpeg_enc_stream_stat(void __iomem *regs)
|
{
|
return (int)(readl(regs + S5P_JPG_ENC_STREAM_INTST) &
|
S5P_ENC_STREAM_INT_STAT_MASK);
|
}
|
|
void s5p_jpeg_clear_enc_stream_stat(void __iomem *regs)
|
{
|
unsigned long reg;
|
|
reg = readl(regs + S5P_JPG_ENC_STREAM_INTSE);
|
reg &= ~S5P_ENC_STREAM_INT_MASK;
|
writel(reg, regs + S5P_JPG_ENC_STREAM_INTSE);
|
}
|
|
void s5p_jpeg_outform_raw(void __iomem *regs, unsigned long format)
|
{
|
unsigned long reg, f;
|
|
f = S5P_DEC_OUT_FORMAT_422;
|
if (format == S5P_JPEG_RAW_OUT_422)
|
f = S5P_DEC_OUT_FORMAT_422;
|
else if (format == S5P_JPEG_RAW_OUT_420)
|
f = S5P_DEC_OUT_FORMAT_420;
|
reg = readl(regs + S5P_JPG_OUTFORM);
|
reg &= ~S5P_DEC_OUT_FORMAT_MASK;
|
reg |= f;
|
writel(reg, regs + S5P_JPG_OUTFORM);
|
}
|
|
void s5p_jpeg_jpgadr(void __iomem *regs, unsigned long addr)
|
{
|
writel(addr, regs + S5P_JPG_JPGADR);
|
}
|
|
void s5p_jpeg_imgadr(void __iomem *regs, unsigned long addr)
|
{
|
writel(addr, regs + S5P_JPG_IMGADR);
|
}
|
|
void s5p_jpeg_coef(void __iomem *regs, unsigned int i,
|
unsigned int j, unsigned int coef)
|
{
|
unsigned long reg;
|
|
reg = readl(regs + S5P_JPG_COEF(i));
|
reg &= ~S5P_COEFn_MASK(j);
|
reg |= (coef << S5P_COEFn_SHIFT(j)) & S5P_COEFn_MASK(j);
|
writel(reg, regs + S5P_JPG_COEF(i));
|
}
|
|
void s5p_jpeg_start(void __iomem *regs)
|
{
|
writel(1, regs + S5P_JSTART);
|
}
|
|
int s5p_jpeg_result_stat_ok(void __iomem *regs)
|
{
|
return (int)((readl(regs + S5P_JPGINTST) & S5P_RESULT_STAT_MASK)
|
>> S5P_RESULT_STAT_SHIFT);
|
}
|
|
int s5p_jpeg_stream_stat_ok(void __iomem *regs)
|
{
|
return !(int)((readl(regs + S5P_JPGINTST) & S5P_STREAM_STAT_MASK)
|
>> S5P_STREAM_STAT_SHIFT);
|
}
|
|
void s5p_jpeg_clear_int(void __iomem *regs)
|
{
|
readl(regs + S5P_JPGINTST);
|
writel(S5P_INT_RELEASE, regs + S5P_JPGCOM);
|
readl(regs + S5P_JPGOPR);
|
}
|
|
unsigned int s5p_jpeg_compressed_size(void __iomem *regs)
|
{
|
unsigned long jpeg_size = 0;
|
|
jpeg_size |= (readl(regs + S5P_JPGCNT_U) & 0xff) << 16;
|
jpeg_size |= (readl(regs + S5P_JPGCNT_M) & 0xff) << 8;
|
jpeg_size |= (readl(regs + S5P_JPGCNT_L) & 0xff);
|
|
return (unsigned int)jpeg_size;
|
}
|
