Mauro Carvalho Chehab | 2c3fb08 | 2012-08-14 17:31:16 -0300 | [diff] [blame] | 1 | /* linux/drivers/media/platform/s5p-jpeg/jpeg-hw.h |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 2 | * |
| 3 | * Copyright (c) 2011 Samsung Electronics Co., Ltd. |
| 4 | * http://www.samsung.com |
| 5 | * |
| 6 | * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | #ifndef JPEG_HW_H_ |
| 13 | #define JPEG_HW_H_ |
| 14 | |
| 15 | #include <linux/io.h> |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 16 | #include <linux/videodev2.h> |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 17 | |
| 18 | #include "jpeg-hw.h" |
| 19 | #include "jpeg-regs.h" |
| 20 | |
| 21 | #define S5P_JPEG_MIN_WIDTH 32 |
| 22 | #define S5P_JPEG_MIN_HEIGHT 32 |
| 23 | #define S5P_JPEG_MAX_WIDTH 8192 |
| 24 | #define S5P_JPEG_MAX_HEIGHT 8192 |
| 25 | #define S5P_JPEG_ENCODE 0 |
| 26 | #define S5P_JPEG_DECODE 1 |
| 27 | #define S5P_JPEG_RAW_IN_565 0 |
| 28 | #define S5P_JPEG_RAW_IN_422 1 |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 29 | #define S5P_JPEG_RAW_OUT_422 0 |
| 30 | #define S5P_JPEG_RAW_OUT_420 1 |
| 31 | |
| 32 | static inline void jpeg_reset(void __iomem *regs) |
| 33 | { |
| 34 | unsigned long reg; |
| 35 | |
| 36 | writel(1, regs + S5P_JPG_SW_RESET); |
| 37 | reg = readl(regs + S5P_JPG_SW_RESET); |
| 38 | /* no other way but polling for when JPEG IP becomes operational */ |
| 39 | while (reg != 0) { |
| 40 | cpu_relax(); |
| 41 | reg = readl(regs + S5P_JPG_SW_RESET); |
| 42 | } |
| 43 | } |
| 44 | |
| 45 | static inline void jpeg_poweron(void __iomem *regs) |
| 46 | { |
| 47 | writel(S5P_POWER_ON, regs + S5P_JPGCLKCON); |
| 48 | } |
| 49 | |
| 50 | static inline void jpeg_input_raw_mode(void __iomem *regs, unsigned long mode) |
| 51 | { |
| 52 | unsigned long reg, m; |
| 53 | |
| 54 | m = S5P_MOD_SEL_565; |
| 55 | if (mode == S5P_JPEG_RAW_IN_565) |
| 56 | m = S5P_MOD_SEL_565; |
| 57 | else if (mode == S5P_JPEG_RAW_IN_422) |
| 58 | m = S5P_MOD_SEL_422; |
| 59 | |
| 60 | reg = readl(regs + S5P_JPGCMOD); |
| 61 | reg &= ~S5P_MOD_SEL_MASK; |
| 62 | reg |= m; |
| 63 | writel(reg, regs + S5P_JPGCMOD); |
| 64 | } |
| 65 | |
| 66 | static inline void jpeg_input_raw_y16(void __iomem *regs, bool y16) |
| 67 | { |
| 68 | unsigned long reg; |
| 69 | |
| 70 | reg = readl(regs + S5P_JPGCMOD); |
| 71 | if (y16) |
| 72 | reg |= S5P_MODE_Y16; |
| 73 | else |
| 74 | reg &= ~S5P_MODE_Y16_MASK; |
| 75 | writel(reg, regs + S5P_JPGCMOD); |
| 76 | } |
| 77 | |
| 78 | static inline void jpeg_proc_mode(void __iomem *regs, unsigned long mode) |
| 79 | { |
| 80 | unsigned long reg, m; |
| 81 | |
| 82 | m = S5P_PROC_MODE_DECOMPR; |
| 83 | if (mode == S5P_JPEG_ENCODE) |
| 84 | m = S5P_PROC_MODE_COMPR; |
| 85 | else |
| 86 | m = S5P_PROC_MODE_DECOMPR; |
| 87 | reg = readl(regs + S5P_JPGMOD); |
| 88 | reg &= ~S5P_PROC_MODE_MASK; |
| 89 | reg |= m; |
| 90 | writel(reg, regs + S5P_JPGMOD); |
| 91 | } |
| 92 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 93 | static inline void jpeg_subsampling_mode(void __iomem *regs, unsigned int mode) |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 94 | { |
| 95 | unsigned long reg, m; |
| 96 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 97 | if (mode == V4L2_JPEG_CHROMA_SUBSAMPLING_420) |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 98 | m = S5P_SUBSAMPLING_MODE_420; |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 99 | else |
| 100 | m = S5P_SUBSAMPLING_MODE_422; |
| 101 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 102 | reg = readl(regs + S5P_JPGMOD); |
| 103 | reg &= ~S5P_SUBSAMPLING_MODE_MASK; |
| 104 | reg |= m; |
| 105 | writel(reg, regs + S5P_JPGMOD); |
| 106 | } |
| 107 | |
Sylwester Nawrocki | 15f4bc3 | 2012-02-17 11:39:36 -0300 | [diff] [blame] | 108 | static inline unsigned int jpeg_get_subsampling_mode(void __iomem *regs) |
| 109 | { |
| 110 | return readl(regs + S5P_JPGMOD) & S5P_SUBSAMPLING_MODE_MASK; |
| 111 | } |
| 112 | |
Andrzej Pietrasiewicz | bb677f3 | 2011-11-24 11:15:23 -0300 | [diff] [blame] | 113 | static inline void jpeg_dri(void __iomem *regs, unsigned int dri) |
| 114 | { |
| 115 | unsigned long reg; |
| 116 | |
| 117 | reg = readl(regs + S5P_JPGDRI_U); |
| 118 | reg &= ~0xff; |
| 119 | reg |= (dri >> 8) & 0xff; |
| 120 | writel(reg, regs + S5P_JPGDRI_U); |
| 121 | |
| 122 | reg = readl(regs + S5P_JPGDRI_L); |
| 123 | reg &= ~0xff; |
| 124 | reg |= dri & 0xff; |
| 125 | writel(reg, regs + S5P_JPGDRI_L); |
| 126 | } |
| 127 | |
| 128 | static inline void jpeg_qtbl(void __iomem *regs, unsigned int t, unsigned int n) |
| 129 | { |
| 130 | unsigned long reg; |
| 131 | |
| 132 | reg = readl(regs + S5P_JPG_QTBL); |
| 133 | reg &= ~S5P_QT_NUMt_MASK(t); |
| 134 | reg |= (n << S5P_QT_NUMt_SHIFT(t)) & S5P_QT_NUMt_MASK(t); |
| 135 | writel(reg, regs + S5P_JPG_QTBL); |
| 136 | } |
| 137 | |
| 138 | static inline void jpeg_htbl_ac(void __iomem *regs, unsigned int t) |
| 139 | { |
| 140 | unsigned long reg; |
| 141 | |
| 142 | reg = readl(regs + S5P_JPG_HTBL); |
| 143 | reg &= ~S5P_HT_NUMt_AC_MASK(t); |
| 144 | /* this driver uses table 0 for all color components */ |
| 145 | reg |= (0 << S5P_HT_NUMt_AC_SHIFT(t)) & S5P_HT_NUMt_AC_MASK(t); |
| 146 | writel(reg, regs + S5P_JPG_HTBL); |
| 147 | } |
| 148 | |
| 149 | static inline void jpeg_htbl_dc(void __iomem *regs, unsigned int t) |
| 150 | { |
| 151 | unsigned long reg; |
| 152 | |
| 153 | reg = readl(regs + S5P_JPG_HTBL); |
| 154 | reg &= ~S5P_HT_NUMt_DC_MASK(t); |
| 155 | /* this driver uses table 0 for all color components */ |
| 156 | reg |= (0 << S5P_HT_NUMt_DC_SHIFT(t)) & S5P_HT_NUMt_DC_MASK(t); |
| 157 | writel(reg, regs + S5P_JPG_HTBL); |
| 158 | } |
| 159 | |
| 160 | static inline void jpeg_y(void __iomem *regs, unsigned int y) |
| 161 | { |
| 162 | unsigned long reg; |
| 163 | |
| 164 | reg = readl(regs + S5P_JPGY_U); |
| 165 | reg &= ~0xff; |
| 166 | reg |= (y >> 8) & 0xff; |
| 167 | writel(reg, regs + S5P_JPGY_U); |
| 168 | |
| 169 | reg = readl(regs + S5P_JPGY_L); |
| 170 | reg &= ~0xff; |
| 171 | reg |= y & 0xff; |
| 172 | writel(reg, regs + S5P_JPGY_L); |
| 173 | } |
| 174 | |
| 175 | static inline void jpeg_x(void __iomem *regs, unsigned int x) |
| 176 | { |
| 177 | unsigned long reg; |
| 178 | |
| 179 | reg = readl(regs + S5P_JPGX_U); |
| 180 | reg &= ~0xff; |
| 181 | reg |= (x >> 8) & 0xff; |
| 182 | writel(reg, regs + S5P_JPGX_U); |
| 183 | |
| 184 | reg = readl(regs + S5P_JPGX_L); |
| 185 | reg &= ~0xff; |
| 186 | reg |= x & 0xff; |
| 187 | writel(reg, regs + S5P_JPGX_L); |
| 188 | } |
| 189 | |
| 190 | static inline void jpeg_rst_int_enable(void __iomem *regs, bool enable) |
| 191 | { |
| 192 | unsigned long reg; |
| 193 | |
| 194 | reg = readl(regs + S5P_JPGINTSE); |
| 195 | reg &= ~S5P_RSTm_INT_EN_MASK; |
| 196 | if (enable) |
| 197 | reg |= S5P_RSTm_INT_EN; |
| 198 | writel(reg, regs + S5P_JPGINTSE); |
| 199 | } |
| 200 | |
| 201 | static inline void jpeg_data_num_int_enable(void __iomem *regs, bool enable) |
| 202 | { |
| 203 | unsigned long reg; |
| 204 | |
| 205 | reg = readl(regs + S5P_JPGINTSE); |
| 206 | reg &= ~S5P_DATA_NUM_INT_EN_MASK; |
| 207 | if (enable) |
| 208 | reg |= S5P_DATA_NUM_INT_EN; |
| 209 | writel(reg, regs + S5P_JPGINTSE); |
| 210 | } |
| 211 | |
| 212 | static inline void jpeg_final_mcu_num_int_enable(void __iomem *regs, bool enbl) |
| 213 | { |
| 214 | unsigned long reg; |
| 215 | |
| 216 | reg = readl(regs + S5P_JPGINTSE); |
| 217 | reg &= ~S5P_FINAL_MCU_NUM_INT_EN_MASK; |
| 218 | if (enbl) |
| 219 | reg |= S5P_FINAL_MCU_NUM_INT_EN; |
| 220 | writel(reg, regs + S5P_JPGINTSE); |
| 221 | } |
| 222 | |
| 223 | static inline void jpeg_timer_enable(void __iomem *regs, unsigned long val) |
| 224 | { |
| 225 | unsigned long reg; |
| 226 | |
| 227 | reg = readl(regs + S5P_JPG_TIMER_SE); |
| 228 | reg |= S5P_TIMER_INT_EN; |
| 229 | reg &= ~S5P_TIMER_INIT_MASK; |
| 230 | reg |= val & S5P_TIMER_INIT_MASK; |
| 231 | writel(reg, regs + S5P_JPG_TIMER_SE); |
| 232 | } |
| 233 | |
| 234 | static inline void jpeg_timer_disable(void __iomem *regs) |
| 235 | { |
| 236 | unsigned long reg; |
| 237 | |
| 238 | reg = readl(regs + S5P_JPG_TIMER_SE); |
| 239 | reg &= ~S5P_TIMER_INT_EN_MASK; |
| 240 | writel(reg, regs + S5P_JPG_TIMER_SE); |
| 241 | } |
| 242 | |
| 243 | static inline int jpeg_timer_stat(void __iomem *regs) |
| 244 | { |
| 245 | return (int)((readl(regs + S5P_JPG_TIMER_ST) & S5P_TIMER_INT_STAT_MASK) |
| 246 | >> S5P_TIMER_INT_STAT_SHIFT); |
| 247 | } |
| 248 | |
| 249 | static inline void jpeg_clear_timer_stat(void __iomem *regs) |
| 250 | { |
| 251 | unsigned long reg; |
| 252 | |
| 253 | reg = readl(regs + S5P_JPG_TIMER_SE); |
| 254 | reg &= ~S5P_TIMER_INT_STAT_MASK; |
| 255 | writel(reg, regs + S5P_JPG_TIMER_SE); |
| 256 | } |
| 257 | |
| 258 | static inline void jpeg_enc_stream_int(void __iomem *regs, unsigned long size) |
| 259 | { |
| 260 | unsigned long reg; |
| 261 | |
| 262 | reg = readl(regs + S5P_JPG_ENC_STREAM_INTSE); |
| 263 | reg &= ~S5P_ENC_STREAM_BOUND_MASK; |
| 264 | reg |= S5P_ENC_STREAM_INT_EN; |
| 265 | reg |= size & S5P_ENC_STREAM_BOUND_MASK; |
| 266 | writel(reg, regs + S5P_JPG_ENC_STREAM_INTSE); |
| 267 | } |
| 268 | |
| 269 | static inline int jpeg_enc_stream_stat(void __iomem *regs) |
| 270 | { |
| 271 | return (int)(readl(regs + S5P_JPG_ENC_STREAM_INTST) & |
| 272 | S5P_ENC_STREAM_INT_STAT_MASK); |
| 273 | } |
| 274 | |
| 275 | static inline void jpeg_clear_enc_stream_stat(void __iomem *regs) |
| 276 | { |
| 277 | unsigned long reg; |
| 278 | |
| 279 | reg = readl(regs + S5P_JPG_ENC_STREAM_INTSE); |
| 280 | reg &= ~S5P_ENC_STREAM_INT_MASK; |
| 281 | writel(reg, regs + S5P_JPG_ENC_STREAM_INTSE); |
| 282 | } |
| 283 | |
| 284 | static inline void jpeg_outform_raw(void __iomem *regs, unsigned long format) |
| 285 | { |
| 286 | unsigned long reg, f; |
| 287 | |
| 288 | f = S5P_DEC_OUT_FORMAT_422; |
| 289 | if (format == S5P_JPEG_RAW_OUT_422) |
| 290 | f = S5P_DEC_OUT_FORMAT_422; |
| 291 | else if (format == S5P_JPEG_RAW_OUT_420) |
| 292 | f = S5P_DEC_OUT_FORMAT_420; |
| 293 | reg = readl(regs + S5P_JPG_OUTFORM); |
| 294 | reg &= ~S5P_DEC_OUT_FORMAT_MASK; |
| 295 | reg |= f; |
| 296 | writel(reg, regs + S5P_JPG_OUTFORM); |
| 297 | } |
| 298 | |
| 299 | static inline void jpeg_jpgadr(void __iomem *regs, unsigned long addr) |
| 300 | { |
| 301 | writel(addr, regs + S5P_JPG_JPGADR); |
| 302 | } |
| 303 | |
| 304 | static inline void jpeg_imgadr(void __iomem *regs, unsigned long addr) |
| 305 | { |
| 306 | writel(addr, regs + S5P_JPG_IMGADR); |
| 307 | } |
| 308 | |
| 309 | static inline void jpeg_coef(void __iomem *regs, unsigned int i, |
| 310 | unsigned int j, unsigned int coef) |
| 311 | { |
| 312 | unsigned long reg; |
| 313 | |
| 314 | reg = readl(regs + S5P_JPG_COEF(i)); |
| 315 | reg &= ~S5P_COEFn_MASK(j); |
| 316 | reg |= (coef << S5P_COEFn_SHIFT(j)) & S5P_COEFn_MASK(j); |
| 317 | writel(reg, regs + S5P_JPG_COEF(i)); |
| 318 | } |
| 319 | |
| 320 | static inline void jpeg_start(void __iomem *regs) |
| 321 | { |
| 322 | writel(1, regs + S5P_JSTART); |
| 323 | } |
| 324 | |
| 325 | static inline int jpeg_result_stat_ok(void __iomem *regs) |
| 326 | { |
| 327 | return (int)((readl(regs + S5P_JPGINTST) & S5P_RESULT_STAT_MASK) |
| 328 | >> S5P_RESULT_STAT_SHIFT); |
| 329 | } |
| 330 | |
| 331 | static inline int jpeg_stream_stat_ok(void __iomem *regs) |
| 332 | { |
| 333 | return !(int)((readl(regs + S5P_JPGINTST) & S5P_STREAM_STAT_MASK) |
| 334 | >> S5P_STREAM_STAT_SHIFT); |
| 335 | } |
| 336 | |
| 337 | static inline void jpeg_clear_int(void __iomem *regs) |
| 338 | { |
| 339 | unsigned long reg; |
| 340 | |
| 341 | reg = readl(regs + S5P_JPGINTST); |
| 342 | writel(S5P_INT_RELEASE, regs + S5P_JPGCOM); |
| 343 | reg = readl(regs + S5P_JPGOPR); |
| 344 | } |
| 345 | |
| 346 | static inline unsigned int jpeg_compressed_size(void __iomem *regs) |
| 347 | { |
| 348 | unsigned long jpeg_size = 0; |
| 349 | |
| 350 | jpeg_size |= (readl(regs + S5P_JPGCNT_U) & 0xff) << 16; |
| 351 | jpeg_size |= (readl(regs + S5P_JPGCNT_M) & 0xff) << 8; |
| 352 | jpeg_size |= (readl(regs + S5P_JPGCNT_L) & 0xff); |
| 353 | |
| 354 | return (unsigned int)jpeg_size; |
| 355 | } |
| 356 | |
| 357 | #endif /* JPEG_HW_H_ */ |