drivers/media/platform/s5p-jpeg/jpeg-hw-exynos4.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /* Copyright (c) 2013 Samsung Electronics Co., Ltd.
   3  *              http://www.samsung.com/
   4  *
   5  * Author: Jacek Anaszewski <j.anaszewski@samsung.com>
   6  *
   7  * Register interface file for JPEG driver on Exynos4x12.
   8  */
   9 #include <linux/io.h>
  10 #include <linux/delay.h>
  11
  12 #include "jpeg-core.h"
  13 #include "jpeg-hw-exynos4.h"
  14 #include "jpeg-regs.h"
  15
  16 void exynos4_jpeg_sw_reset(void __iomem *base)
  17 {
  18         unsigned int reg;
  19
  20         reg = readl(base + EXYNOS4_JPEG_CNTL_REG);
  21         writel(reg & ~(EXYNOS4_DEC_MODE | EXYNOS4_ENC_MODE),
  22                                 base + EXYNOS4_JPEG_CNTL_REG);
  23
  24         reg = readl(base + EXYNOS4_JPEG_CNTL_REG);
  25         writel(reg & ~EXYNOS4_SOFT_RESET_HI, base + EXYNOS4_JPEG_CNTL_REG);
  26
  27         udelay(100);
  28
  29         writel(reg | EXYNOS4_SOFT_RESET_HI, base + EXYNOS4_JPEG_CNTL_REG);
  30 }
  31
  32 void exynos4_jpeg_set_enc_dec_mode(void __iomem *base, unsigned int mode)
  33 {
  34         unsigned int reg;
  35
  36         reg = readl(base + EXYNOS4_JPEG_CNTL_REG);
  37         /* set exynos4_jpeg mod register */
  38         if (mode == S5P_JPEG_DECODE) {
  39                 writel((reg & EXYNOS4_ENC_DEC_MODE_MASK) |
  40                                         EXYNOS4_DEC_MODE,
  41                         base + EXYNOS4_JPEG_CNTL_REG);
  42         } else if (mode == S5P_JPEG_ENCODE) {/* encode */
  43                 writel((reg & EXYNOS4_ENC_DEC_MODE_MASK) |
  44                                         EXYNOS4_ENC_MODE,
  45                         base + EXYNOS4_JPEG_CNTL_REG);
  46         } else { /* disable both */
  47                 writel(reg & EXYNOS4_ENC_DEC_MODE_MASK,
  48                         base + EXYNOS4_JPEG_CNTL_REG);
  49         }
  50 }
  51
  52 void __exynos4_jpeg_set_img_fmt(void __iomem *base, unsigned int img_fmt,
  53                                 unsigned int version)
  54 {
  55         unsigned int reg;
  56         unsigned int exynos4_swap_chroma_cbcr;
  57         unsigned int exynos4_swap_chroma_crcb;
  58
  59         if (version == SJPEG_EXYNOS4) {
  60                 exynos4_swap_chroma_cbcr = EXYNOS4_SWAP_CHROMA_CBCR;
  61                 exynos4_swap_chroma_crcb = EXYNOS4_SWAP_CHROMA_CRCB;
  62         } else {
  63                 exynos4_swap_chroma_cbcr = EXYNOS5433_SWAP_CHROMA_CBCR;
  64                 exynos4_swap_chroma_crcb = EXYNOS5433_SWAP_CHROMA_CRCB;
  65         }
  66
  67         reg = readl(base + EXYNOS4_IMG_FMT_REG) &
  68                         EXYNOS4_ENC_IN_FMT_MASK; /* clear except enc format */
  69
  70         switch (img_fmt) {
  71         case V4L2_PIX_FMT_GREY:
  72                 reg = reg | EXYNOS4_ENC_GRAY_IMG | EXYNOS4_GRAY_IMG_IP;
  73                 break;
  74         case V4L2_PIX_FMT_RGB32:
  75                 reg = reg | EXYNOS4_ENC_RGB_IMG |
  76                                 EXYNOS4_RGB_IP_RGB_32BIT_IMG;
  77                 break;
  78         case V4L2_PIX_FMT_RGB565:
  79                 reg = reg | EXYNOS4_ENC_RGB_IMG |
  80                                 EXYNOS4_RGB_IP_RGB_16BIT_IMG;
  81                 break;
  82         case V4L2_PIX_FMT_NV24:
  83                 reg = reg | EXYNOS4_ENC_YUV_444_IMG |
  84                                 EXYNOS4_YUV_444_IP_YUV_444_2P_IMG |
  85                                 exynos4_swap_chroma_cbcr;
  86                 break;
  87         case V4L2_PIX_FMT_NV42:
  88                 reg = reg | EXYNOS4_ENC_YUV_444_IMG |
  89                                 EXYNOS4_YUV_444_IP_YUV_444_2P_IMG |
  90                                 exynos4_swap_chroma_crcb;
  91                 break;
  92         case V4L2_PIX_FMT_YUYV:
  93                 reg = reg | EXYNOS4_DEC_YUV_422_IMG |
  94                                 EXYNOS4_YUV_422_IP_YUV_422_1P_IMG |
  95                                 exynos4_swap_chroma_cbcr;
  96                 break;
  97
  98         case V4L2_PIX_FMT_YVYU:
  99                 reg = reg | EXYNOS4_DEC_YUV_422_IMG |
 100                                 EXYNOS4_YUV_422_IP_YUV_422_1P_IMG |
 101                                 exynos4_swap_chroma_crcb;
 102                 break;
 103         case V4L2_PIX_FMT_NV16:
 104                 reg = reg | EXYNOS4_DEC_YUV_422_IMG |
 105                                 EXYNOS4_YUV_422_IP_YUV_422_2P_IMG |
 106                                 exynos4_swap_chroma_cbcr;
 107                 break;
 108         case V4L2_PIX_FMT_NV61:
 109                 reg = reg | EXYNOS4_DEC_YUV_422_IMG |
 110                                 EXYNOS4_YUV_422_IP_YUV_422_2P_IMG |
 111                                 exynos4_swap_chroma_crcb;
 112                 break;
 113         case V4L2_PIX_FMT_NV12:
 114                 reg = reg | EXYNOS4_DEC_YUV_420_IMG |
 115                                 EXYNOS4_YUV_420_IP_YUV_420_2P_IMG |
 116                                 exynos4_swap_chroma_cbcr;
 117                 break;
 118         case V4L2_PIX_FMT_NV21:
 119                 reg = reg | EXYNOS4_DEC_YUV_420_IMG |
 120                                 EXYNOS4_YUV_420_IP_YUV_420_2P_IMG |
 121                                 exynos4_swap_chroma_crcb;
 122                 break;
 123         case V4L2_PIX_FMT_YUV420:
 124                 reg = reg | EXYNOS4_DEC_YUV_420_IMG |
 125                                 EXYNOS4_YUV_420_IP_YUV_420_3P_IMG |
 126                                 exynos4_swap_chroma_cbcr;
 127                 break;
 128         default:
 129                 break;
 130
 131         }
 132
 133         writel(reg, base + EXYNOS4_IMG_FMT_REG);
 134 }
 135
 136 void __exynos4_jpeg_set_enc_out_fmt(void __iomem *base, unsigned int out_fmt,
 137                                     unsigned int version)
 138 {
 139         unsigned int reg;
 140
 141         reg = readl(base + EXYNOS4_IMG_FMT_REG) &
 142                         ~(version == SJPEG_EXYNOS4 ? EXYNOS4_ENC_FMT_MASK :
 143                           EXYNOS5433_ENC_FMT_MASK); /* clear enc format */
 144
 145         switch (out_fmt) {
 146         case V4L2_JPEG_CHROMA_SUBSAMPLING_GRAY:
 147                 reg = reg | EXYNOS4_ENC_FMT_GRAY;
 148                 break;
 149
 150         case V4L2_JPEG_CHROMA_SUBSAMPLING_444:
 151                 reg = reg | EXYNOS4_ENC_FMT_YUV_444;
 152                 break;
 153
 154         case V4L2_JPEG_CHROMA_SUBSAMPLING_422:
 155                 reg = reg | EXYNOS4_ENC_FMT_YUV_422;
 156                 break;
 157
 158         case V4L2_JPEG_CHROMA_SUBSAMPLING_420:
 159                 reg = reg | EXYNOS4_ENC_FMT_YUV_420;
 160                 break;
 161
 162         default:
 163                 break;
 164         }
 165
 166         writel(reg, base + EXYNOS4_IMG_FMT_REG);
 167 }
 168
 169 void exynos4_jpeg_set_interrupt(void __iomem *base, unsigned int version)
 170 {
 171         unsigned int reg;
 172
 173         if (version == SJPEG_EXYNOS4) {
 174                 reg = readl(base + EXYNOS4_INT_EN_REG) & ~EXYNOS4_INT_EN_MASK;
 175                 writel(reg | EXYNOS4_INT_EN_ALL, base + EXYNOS4_INT_EN_REG);
 176         } else {
 177                 reg = readl(base + EXYNOS4_INT_EN_REG) &
 178                                                         ~EXYNOS5433_INT_EN_MASK;
 179                 writel(reg | EXYNOS5433_INT_EN_ALL, base + EXYNOS4_INT_EN_REG);
 180         }
 181 }
 182
 183 unsigned int exynos4_jpeg_get_int_status(void __iomem *base)
 184 {
 185         return readl(base + EXYNOS4_INT_STATUS_REG);
 186 }
 187
 188 unsigned int exynos4_jpeg_get_fifo_status(void __iomem *base)
 189 {
 190         return readl(base + EXYNOS4_FIFO_STATUS_REG);
 191 }
 192
 193 void exynos4_jpeg_set_huf_table_enable(void __iomem *base, int value)
 194 {
 195         unsigned int    reg;
 196
 197         reg = readl(base + EXYNOS4_JPEG_CNTL_REG) & ~EXYNOS4_HUF_TBL_EN;
 198
 199         if (value == 1)
 200                 writel(reg | EXYNOS4_HUF_TBL_EN,
 201                                         base + EXYNOS4_JPEG_CNTL_REG);
 202         else
 203                 writel(reg & ~EXYNOS4_HUF_TBL_EN,
 204                                         base + EXYNOS4_JPEG_CNTL_REG);
 205 }
 206
 207 void exynos4_jpeg_set_sys_int_enable(void __iomem *base, int value)
 208 {
 209         unsigned int    reg;
 210
 211         reg = readl(base + EXYNOS4_JPEG_CNTL_REG) & ~(EXYNOS4_SYS_INT_EN);
 212
 213         if (value == 1)
 214                 writel(reg | EXYNOS4_SYS_INT_EN, base + EXYNOS4_JPEG_CNTL_REG);
 215         else
 216                 writel(reg & ~EXYNOS4_SYS_INT_EN, base + EXYNOS4_JPEG_CNTL_REG);
 217 }
 218
 219 void exynos4_jpeg_set_stream_buf_address(void __iomem *base,
 220                                          unsigned int address)
 221 {
 222         writel(address, base + EXYNOS4_OUT_MEM_BASE_REG);
 223 }
 224
 225 void exynos4_jpeg_set_stream_size(void __iomem *base,
 226                 unsigned int x_value, unsigned int y_value)
 227 {
 228         writel(0x0, base + EXYNOS4_JPEG_IMG_SIZE_REG); /* clear */
 229         writel(EXYNOS4_X_SIZE(x_value) | EXYNOS4_Y_SIZE(y_value),
 230                         base + EXYNOS4_JPEG_IMG_SIZE_REG);
 231 }
 232
 233 void exynos4_jpeg_set_frame_buf_address(void __iomem *base,
 234                                 struct s5p_jpeg_addr *exynos4_jpeg_addr)
 235 {
 236         writel(exynos4_jpeg_addr->y, base + EXYNOS4_IMG_BA_PLANE_1_REG);
 237         writel(exynos4_jpeg_addr->cb, base + EXYNOS4_IMG_BA_PLANE_2_REG);
 238         writel(exynos4_jpeg_addr->cr, base + EXYNOS4_IMG_BA_PLANE_3_REG);
 239 }
 240
 241 void exynos4_jpeg_set_encode_tbl_select(void __iomem *base,
 242                 enum exynos4_jpeg_img_quality_level level)
 243 {
 244         unsigned int    reg;
 245
 246         reg = EXYNOS4_Q_TBL_COMP1_0 | EXYNOS4_Q_TBL_COMP2_1 |
 247                 EXYNOS4_Q_TBL_COMP3_1 |
 248                 EXYNOS4_HUFF_TBL_COMP1_AC_0_DC_1 |
 249                 EXYNOS4_HUFF_TBL_COMP2_AC_0_DC_0 |
 250                 EXYNOS4_HUFF_TBL_COMP3_AC_1_DC_1;
 251
 252         writel(reg, base + EXYNOS4_TBL_SEL_REG);
 253 }
 254
 255 void exynos4_jpeg_set_dec_components(void __iomem *base, int n)
 256 {
 257         unsigned int    reg;
 258
 259         reg = readl(base + EXYNOS4_TBL_SEL_REG);
 260
 261         reg |= EXYNOS4_NF(n);
 262         writel(reg, base + EXYNOS4_TBL_SEL_REG);
 263 }
 264
 265 void exynos4_jpeg_select_dec_q_tbl(void __iomem *base, char c, char x)
 266 {
 267         unsigned int    reg;
 268
 269         reg = readl(base + EXYNOS4_TBL_SEL_REG);
 270
 271         reg |= EXYNOS4_Q_TBL_COMP(c, x);
 272         writel(reg, base + EXYNOS4_TBL_SEL_REG);
 273 }
 274
 275 void exynos4_jpeg_select_dec_h_tbl(void __iomem *base, char c, char x)
 276 {
 277         unsigned int    reg;
 278
 279         reg = readl(base + EXYNOS4_TBL_SEL_REG);
 280
 281         reg |= EXYNOS4_HUFF_TBL_COMP(c, x);
 282         writel(reg, base + EXYNOS4_TBL_SEL_REG);
 283 }
 284
 285 void exynos4_jpeg_set_encode_hoff_cnt(void __iomem *base, unsigned int fmt)
 286 {
 287         if (fmt == V4L2_PIX_FMT_GREY)
 288                 writel(0xd2, base + EXYNOS4_HUFF_CNT_REG);
 289         else
 290                 writel(0x1a2, base + EXYNOS4_HUFF_CNT_REG);
 291 }
 292
 293 unsigned int exynos4_jpeg_get_stream_size(void __iomem *base)
 294 {
 295         return readl(base + EXYNOS4_BITSTREAM_SIZE_REG);
 296 }
 297
 298 void exynos4_jpeg_set_dec_bitstream_size(void __iomem *base, unsigned int size)
 299 {
 300         writel(size, base + EXYNOS4_BITSTREAM_SIZE_REG);
 301 }
 302
 303 void exynos4_jpeg_get_frame_size(void __iomem *base,
 304                         unsigned int *width, unsigned int *height)
 305 {
 306         *width = (readl(base + EXYNOS4_DECODE_XY_SIZE_REG) &
 307                                 EXYNOS4_DECODED_SIZE_MASK);
 308         *height = (readl(base + EXYNOS4_DECODE_XY_SIZE_REG) >> 16) &
 309                                 EXYNOS4_DECODED_SIZE_MASK;
 310 }
 311
 312 unsigned int exynos4_jpeg_get_frame_fmt(void __iomem *base)
 313 {
 314         return readl(base + EXYNOS4_DECODE_IMG_FMT_REG) &
 315                                 EXYNOS4_JPEG_DECODED_IMG_FMT_MASK;
 316 }
 317
 318 void exynos4_jpeg_set_timer_count(void __iomem *base, unsigned int size)
 319 {
 320         writel(size, base + EXYNOS4_INT_TIMER_COUNT_REG);
 321 }