Sungchun Kang | 199854a | 2012-07-31 10:44:03 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2011 - 2012 Samsung Electronics Co., Ltd. |
| 3 | * http://www.samsung.com |
| 4 | * |
| 5 | * Samsung EXYNOS5 SoC series G-Scaler driver |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published |
| 9 | * by the Free Software Foundation, either version 2 of the License, |
| 10 | * or (at your option) any later version. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/io.h> |
| 14 | #include <linux/delay.h> |
Sungchun Kang | 199854a | 2012-07-31 10:44:03 -0300 | [diff] [blame] | 15 | |
| 16 | #include "gsc-core.h" |
| 17 | |
| 18 | void gsc_hw_set_sw_reset(struct gsc_dev *dev) |
| 19 | { |
| 20 | writel(GSC_SW_RESET_SRESET, dev->regs + GSC_SW_RESET); |
| 21 | } |
| 22 | |
| 23 | int gsc_wait_reset(struct gsc_dev *dev) |
| 24 | { |
| 25 | unsigned long end = jiffies + msecs_to_jiffies(50); |
| 26 | u32 cfg; |
| 27 | |
| 28 | while (time_before(jiffies, end)) { |
| 29 | cfg = readl(dev->regs + GSC_SW_RESET); |
| 30 | if (!cfg) |
| 31 | return 0; |
| 32 | usleep_range(10, 20); |
| 33 | } |
| 34 | |
| 35 | return -EBUSY; |
| 36 | } |
| 37 | |
| 38 | void gsc_hw_set_frm_done_irq_mask(struct gsc_dev *dev, bool mask) |
| 39 | { |
| 40 | u32 cfg; |
| 41 | |
| 42 | cfg = readl(dev->regs + GSC_IRQ); |
| 43 | if (mask) |
| 44 | cfg |= GSC_IRQ_FRMDONE_MASK; |
| 45 | else |
| 46 | cfg &= ~GSC_IRQ_FRMDONE_MASK; |
| 47 | writel(cfg, dev->regs + GSC_IRQ); |
| 48 | } |
| 49 | |
| 50 | void gsc_hw_set_gsc_irq_enable(struct gsc_dev *dev, bool mask) |
| 51 | { |
| 52 | u32 cfg; |
| 53 | |
| 54 | cfg = readl(dev->regs + GSC_IRQ); |
| 55 | if (mask) |
| 56 | cfg |= GSC_IRQ_ENABLE; |
| 57 | else |
| 58 | cfg &= ~GSC_IRQ_ENABLE; |
| 59 | writel(cfg, dev->regs + GSC_IRQ); |
| 60 | } |
| 61 | |
| 62 | void gsc_hw_set_input_buf_masking(struct gsc_dev *dev, u32 shift, |
| 63 | bool enable) |
| 64 | { |
| 65 | u32 cfg = readl(dev->regs + GSC_IN_BASE_ADDR_Y_MASK); |
| 66 | u32 mask = 1 << shift; |
| 67 | |
| 68 | cfg &= ~mask; |
| 69 | cfg |= enable << shift; |
| 70 | |
| 71 | writel(cfg, dev->regs + GSC_IN_BASE_ADDR_Y_MASK); |
| 72 | writel(cfg, dev->regs + GSC_IN_BASE_ADDR_CB_MASK); |
| 73 | writel(cfg, dev->regs + GSC_IN_BASE_ADDR_CR_MASK); |
| 74 | } |
| 75 | |
| 76 | void gsc_hw_set_output_buf_masking(struct gsc_dev *dev, u32 shift, |
| 77 | bool enable) |
| 78 | { |
| 79 | u32 cfg = readl(dev->regs + GSC_OUT_BASE_ADDR_Y_MASK); |
| 80 | u32 mask = 1 << shift; |
| 81 | |
| 82 | cfg &= ~mask; |
| 83 | cfg |= enable << shift; |
| 84 | |
| 85 | writel(cfg, dev->regs + GSC_OUT_BASE_ADDR_Y_MASK); |
| 86 | writel(cfg, dev->regs + GSC_OUT_BASE_ADDR_CB_MASK); |
| 87 | writel(cfg, dev->regs + GSC_OUT_BASE_ADDR_CR_MASK); |
| 88 | } |
| 89 | |
| 90 | void gsc_hw_set_input_addr(struct gsc_dev *dev, struct gsc_addr *addr, |
| 91 | int index) |
| 92 | { |
Mauro Carvalho Chehab | 286da99 | 2014-08-22 10:57:21 -0500 | [diff] [blame] | 93 | pr_debug("src_buf[%d]: %pad, cb: %pad, cr: %pad", index, |
| 94 | &addr->y, &addr->cb, &addr->cr); |
Sungchun Kang | 199854a | 2012-07-31 10:44:03 -0300 | [diff] [blame] | 95 | writel(addr->y, dev->regs + GSC_IN_BASE_ADDR_Y(index)); |
| 96 | writel(addr->cb, dev->regs + GSC_IN_BASE_ADDR_CB(index)); |
| 97 | writel(addr->cr, dev->regs + GSC_IN_BASE_ADDR_CR(index)); |
| 98 | |
| 99 | } |
| 100 | |
| 101 | void gsc_hw_set_output_addr(struct gsc_dev *dev, |
| 102 | struct gsc_addr *addr, int index) |
| 103 | { |
Mauro Carvalho Chehab | 286da99 | 2014-08-22 10:57:21 -0500 | [diff] [blame] | 104 | pr_debug("dst_buf[%d]: %pad, cb: %pad, cr: %pad", |
| 105 | index, &addr->y, &addr->cb, &addr->cr); |
Sungchun Kang | 199854a | 2012-07-31 10:44:03 -0300 | [diff] [blame] | 106 | writel(addr->y, dev->regs + GSC_OUT_BASE_ADDR_Y(index)); |
| 107 | writel(addr->cb, dev->regs + GSC_OUT_BASE_ADDR_CB(index)); |
| 108 | writel(addr->cr, dev->regs + GSC_OUT_BASE_ADDR_CR(index)); |
| 109 | } |
| 110 | |
| 111 | void gsc_hw_set_input_path(struct gsc_ctx *ctx) |
| 112 | { |
| 113 | struct gsc_dev *dev = ctx->gsc_dev; |
| 114 | |
| 115 | u32 cfg = readl(dev->regs + GSC_IN_CON); |
| 116 | cfg &= ~(GSC_IN_PATH_MASK | GSC_IN_LOCAL_SEL_MASK); |
| 117 | |
| 118 | if (ctx->in_path == GSC_DMA) |
| 119 | cfg |= GSC_IN_PATH_MEMORY; |
| 120 | |
| 121 | writel(cfg, dev->regs + GSC_IN_CON); |
| 122 | } |
| 123 | |
| 124 | void gsc_hw_set_in_size(struct gsc_ctx *ctx) |
| 125 | { |
| 126 | struct gsc_dev *dev = ctx->gsc_dev; |
| 127 | struct gsc_frame *frame = &ctx->s_frame; |
| 128 | u32 cfg; |
| 129 | |
| 130 | /* Set input pixel offset */ |
| 131 | cfg = GSC_SRCIMG_OFFSET_X(frame->crop.left); |
| 132 | cfg |= GSC_SRCIMG_OFFSET_Y(frame->crop.top); |
| 133 | writel(cfg, dev->regs + GSC_SRCIMG_OFFSET); |
| 134 | |
| 135 | /* Set input original size */ |
| 136 | cfg = GSC_SRCIMG_WIDTH(frame->f_width); |
| 137 | cfg |= GSC_SRCIMG_HEIGHT(frame->f_height); |
| 138 | writel(cfg, dev->regs + GSC_SRCIMG_SIZE); |
| 139 | |
| 140 | /* Set input cropped size */ |
| 141 | cfg = GSC_CROPPED_WIDTH(frame->crop.width); |
| 142 | cfg |= GSC_CROPPED_HEIGHT(frame->crop.height); |
| 143 | writel(cfg, dev->regs + GSC_CROPPED_SIZE); |
| 144 | } |
| 145 | |
| 146 | void gsc_hw_set_in_image_rgb(struct gsc_ctx *ctx) |
| 147 | { |
| 148 | struct gsc_dev *dev = ctx->gsc_dev; |
| 149 | struct gsc_frame *frame = &ctx->s_frame; |
| 150 | u32 cfg; |
| 151 | |
| 152 | cfg = readl(dev->regs + GSC_IN_CON); |
| 153 | if (frame->colorspace == V4L2_COLORSPACE_REC709) |
| 154 | cfg |= GSC_IN_RGB_HD_WIDE; |
| 155 | else |
| 156 | cfg |= GSC_IN_RGB_SD_WIDE; |
| 157 | |
| 158 | if (frame->fmt->pixelformat == V4L2_PIX_FMT_RGB565X) |
| 159 | cfg |= GSC_IN_RGB565; |
| 160 | else if (frame->fmt->pixelformat == V4L2_PIX_FMT_RGB32) |
| 161 | cfg |= GSC_IN_XRGB8888; |
| 162 | |
| 163 | writel(cfg, dev->regs + GSC_IN_CON); |
| 164 | } |
| 165 | |
| 166 | void gsc_hw_set_in_image_format(struct gsc_ctx *ctx) |
| 167 | { |
| 168 | struct gsc_dev *dev = ctx->gsc_dev; |
| 169 | struct gsc_frame *frame = &ctx->s_frame; |
| 170 | u32 i, depth = 0; |
| 171 | u32 cfg; |
| 172 | |
| 173 | cfg = readl(dev->regs + GSC_IN_CON); |
| 174 | cfg &= ~(GSC_IN_RGB_TYPE_MASK | GSC_IN_YUV422_1P_ORDER_MASK | |
| 175 | GSC_IN_CHROMA_ORDER_MASK | GSC_IN_FORMAT_MASK | |
| 176 | GSC_IN_TILE_TYPE_MASK | GSC_IN_TILE_MODE); |
| 177 | writel(cfg, dev->regs + GSC_IN_CON); |
| 178 | |
| 179 | if (is_rgb(frame->fmt->color)) { |
| 180 | gsc_hw_set_in_image_rgb(ctx); |
| 181 | return; |
| 182 | } |
| 183 | for (i = 0; i < frame->fmt->num_planes; i++) |
| 184 | depth += frame->fmt->depth[i]; |
| 185 | |
| 186 | switch (frame->fmt->num_comp) { |
| 187 | case 1: |
| 188 | cfg |= GSC_IN_YUV422_1P; |
| 189 | if (frame->fmt->yorder == GSC_LSB_Y) |
| 190 | cfg |= GSC_IN_YUV422_1P_ORDER_LSB_Y; |
| 191 | else |
| 192 | cfg |= GSC_IN_YUV422_1P_OEDER_LSB_C; |
| 193 | if (frame->fmt->corder == GSC_CBCR) |
| 194 | cfg |= GSC_IN_CHROMA_ORDER_CBCR; |
| 195 | else |
| 196 | cfg |= GSC_IN_CHROMA_ORDER_CRCB; |
| 197 | break; |
| 198 | case 2: |
| 199 | if (depth == 12) |
| 200 | cfg |= GSC_IN_YUV420_2P; |
| 201 | else |
| 202 | cfg |= GSC_IN_YUV422_2P; |
| 203 | if (frame->fmt->corder == GSC_CBCR) |
| 204 | cfg |= GSC_IN_CHROMA_ORDER_CBCR; |
| 205 | else |
| 206 | cfg |= GSC_IN_CHROMA_ORDER_CRCB; |
| 207 | break; |
| 208 | case 3: |
| 209 | if (depth == 12) |
| 210 | cfg |= GSC_IN_YUV420_3P; |
| 211 | else |
| 212 | cfg |= GSC_IN_YUV422_3P; |
| 213 | break; |
Peter Senna Tschudin | c2c1b41 | 2012-09-28 05:37:22 -0300 | [diff] [blame] | 214 | } |
Sungchun Kang | 199854a | 2012-07-31 10:44:03 -0300 | [diff] [blame] | 215 | |
Shaik Ameer Basha | aecede4 | 2012-11-07 03:37:07 -0300 | [diff] [blame] | 216 | if (is_tiled(frame->fmt)) |
| 217 | cfg |= GSC_IN_TILE_C_16x8 | GSC_IN_TILE_MODE; |
| 218 | |
Sungchun Kang | 199854a | 2012-07-31 10:44:03 -0300 | [diff] [blame] | 219 | writel(cfg, dev->regs + GSC_IN_CON); |
| 220 | } |
| 221 | |
| 222 | void gsc_hw_set_output_path(struct gsc_ctx *ctx) |
| 223 | { |
| 224 | struct gsc_dev *dev = ctx->gsc_dev; |
| 225 | |
| 226 | u32 cfg = readl(dev->regs + GSC_OUT_CON); |
| 227 | cfg &= ~GSC_OUT_PATH_MASK; |
| 228 | |
| 229 | if (ctx->out_path == GSC_DMA) |
| 230 | cfg |= GSC_OUT_PATH_MEMORY; |
| 231 | else |
| 232 | cfg |= GSC_OUT_PATH_LOCAL; |
| 233 | |
| 234 | writel(cfg, dev->regs + GSC_OUT_CON); |
| 235 | } |
| 236 | |
| 237 | void gsc_hw_set_out_size(struct gsc_ctx *ctx) |
| 238 | { |
| 239 | struct gsc_dev *dev = ctx->gsc_dev; |
| 240 | struct gsc_frame *frame = &ctx->d_frame; |
| 241 | u32 cfg; |
| 242 | |
| 243 | /* Set output original size */ |
| 244 | if (ctx->out_path == GSC_DMA) { |
| 245 | cfg = GSC_DSTIMG_OFFSET_X(frame->crop.left); |
| 246 | cfg |= GSC_DSTIMG_OFFSET_Y(frame->crop.top); |
| 247 | writel(cfg, dev->regs + GSC_DSTIMG_OFFSET); |
| 248 | |
| 249 | cfg = GSC_DSTIMG_WIDTH(frame->f_width); |
| 250 | cfg |= GSC_DSTIMG_HEIGHT(frame->f_height); |
| 251 | writel(cfg, dev->regs + GSC_DSTIMG_SIZE); |
| 252 | } |
| 253 | |
| 254 | /* Set output scaled size */ |
| 255 | if (ctx->gsc_ctrls.rotate->val == 90 || |
| 256 | ctx->gsc_ctrls.rotate->val == 270) { |
| 257 | cfg = GSC_SCALED_WIDTH(frame->crop.height); |
| 258 | cfg |= GSC_SCALED_HEIGHT(frame->crop.width); |
| 259 | } else { |
| 260 | cfg = GSC_SCALED_WIDTH(frame->crop.width); |
| 261 | cfg |= GSC_SCALED_HEIGHT(frame->crop.height); |
| 262 | } |
| 263 | writel(cfg, dev->regs + GSC_SCALED_SIZE); |
| 264 | } |
| 265 | |
| 266 | void gsc_hw_set_out_image_rgb(struct gsc_ctx *ctx) |
| 267 | { |
| 268 | struct gsc_dev *dev = ctx->gsc_dev; |
| 269 | struct gsc_frame *frame = &ctx->d_frame; |
| 270 | u32 cfg; |
| 271 | |
| 272 | cfg = readl(dev->regs + GSC_OUT_CON); |
| 273 | if (frame->colorspace == V4L2_COLORSPACE_REC709) |
| 274 | cfg |= GSC_OUT_RGB_HD_WIDE; |
| 275 | else |
| 276 | cfg |= GSC_OUT_RGB_SD_WIDE; |
| 277 | |
| 278 | if (frame->fmt->pixelformat == V4L2_PIX_FMT_RGB565X) |
| 279 | cfg |= GSC_OUT_RGB565; |
| 280 | else if (frame->fmt->pixelformat == V4L2_PIX_FMT_RGB32) |
| 281 | cfg |= GSC_OUT_XRGB8888; |
| 282 | |
| 283 | writel(cfg, dev->regs + GSC_OUT_CON); |
| 284 | } |
| 285 | |
| 286 | void gsc_hw_set_out_image_format(struct gsc_ctx *ctx) |
| 287 | { |
| 288 | struct gsc_dev *dev = ctx->gsc_dev; |
| 289 | struct gsc_frame *frame = &ctx->d_frame; |
| 290 | u32 i, depth = 0; |
| 291 | u32 cfg; |
| 292 | |
| 293 | cfg = readl(dev->regs + GSC_OUT_CON); |
| 294 | cfg &= ~(GSC_OUT_RGB_TYPE_MASK | GSC_OUT_YUV422_1P_ORDER_MASK | |
| 295 | GSC_OUT_CHROMA_ORDER_MASK | GSC_OUT_FORMAT_MASK | |
| 296 | GSC_OUT_TILE_TYPE_MASK | GSC_OUT_TILE_MODE); |
| 297 | writel(cfg, dev->regs + GSC_OUT_CON); |
| 298 | |
| 299 | if (is_rgb(frame->fmt->color)) { |
| 300 | gsc_hw_set_out_image_rgb(ctx); |
| 301 | return; |
| 302 | } |
| 303 | |
| 304 | if (ctx->out_path != GSC_DMA) { |
| 305 | cfg |= GSC_OUT_YUV444; |
| 306 | goto end_set; |
| 307 | } |
| 308 | |
| 309 | for (i = 0; i < frame->fmt->num_planes; i++) |
| 310 | depth += frame->fmt->depth[i]; |
| 311 | |
| 312 | switch (frame->fmt->num_comp) { |
| 313 | case 1: |
| 314 | cfg |= GSC_OUT_YUV422_1P; |
| 315 | if (frame->fmt->yorder == GSC_LSB_Y) |
| 316 | cfg |= GSC_OUT_YUV422_1P_ORDER_LSB_Y; |
| 317 | else |
| 318 | cfg |= GSC_OUT_YUV422_1P_OEDER_LSB_C; |
| 319 | if (frame->fmt->corder == GSC_CBCR) |
| 320 | cfg |= GSC_OUT_CHROMA_ORDER_CBCR; |
| 321 | else |
| 322 | cfg |= GSC_OUT_CHROMA_ORDER_CRCB; |
| 323 | break; |
| 324 | case 2: |
| 325 | if (depth == 12) |
| 326 | cfg |= GSC_OUT_YUV420_2P; |
| 327 | else |
| 328 | cfg |= GSC_OUT_YUV422_2P; |
| 329 | if (frame->fmt->corder == GSC_CBCR) |
| 330 | cfg |= GSC_OUT_CHROMA_ORDER_CBCR; |
| 331 | else |
| 332 | cfg |= GSC_OUT_CHROMA_ORDER_CRCB; |
| 333 | break; |
| 334 | case 3: |
| 335 | cfg |= GSC_OUT_YUV420_3P; |
| 336 | break; |
Peter Senna Tschudin | c2c1b41 | 2012-09-28 05:37:22 -0300 | [diff] [blame] | 337 | } |
Sungchun Kang | 199854a | 2012-07-31 10:44:03 -0300 | [diff] [blame] | 338 | |
Shaik Ameer Basha | aecede4 | 2012-11-07 03:37:07 -0300 | [diff] [blame] | 339 | if (is_tiled(frame->fmt)) |
| 340 | cfg |= GSC_OUT_TILE_C_16x8 | GSC_OUT_TILE_MODE; |
| 341 | |
Sungchun Kang | 199854a | 2012-07-31 10:44:03 -0300 | [diff] [blame] | 342 | end_set: |
| 343 | writel(cfg, dev->regs + GSC_OUT_CON); |
| 344 | } |
| 345 | |
| 346 | void gsc_hw_set_prescaler(struct gsc_ctx *ctx) |
| 347 | { |
| 348 | struct gsc_dev *dev = ctx->gsc_dev; |
| 349 | struct gsc_scaler *sc = &ctx->scaler; |
| 350 | u32 cfg; |
| 351 | |
| 352 | cfg = GSC_PRESC_SHFACTOR(sc->pre_shfactor); |
| 353 | cfg |= GSC_PRESC_H_RATIO(sc->pre_hratio); |
| 354 | cfg |= GSC_PRESC_V_RATIO(sc->pre_vratio); |
| 355 | writel(cfg, dev->regs + GSC_PRE_SCALE_RATIO); |
| 356 | } |
| 357 | |
| 358 | void gsc_hw_set_mainscaler(struct gsc_ctx *ctx) |
| 359 | { |
| 360 | struct gsc_dev *dev = ctx->gsc_dev; |
| 361 | struct gsc_scaler *sc = &ctx->scaler; |
| 362 | u32 cfg; |
| 363 | |
| 364 | cfg = GSC_MAIN_H_RATIO_VALUE(sc->main_hratio); |
| 365 | writel(cfg, dev->regs + GSC_MAIN_H_RATIO); |
| 366 | |
| 367 | cfg = GSC_MAIN_V_RATIO_VALUE(sc->main_vratio); |
| 368 | writel(cfg, dev->regs + GSC_MAIN_V_RATIO); |
| 369 | } |
| 370 | |
| 371 | void gsc_hw_set_rotation(struct gsc_ctx *ctx) |
| 372 | { |
| 373 | struct gsc_dev *dev = ctx->gsc_dev; |
| 374 | u32 cfg; |
| 375 | |
| 376 | cfg = readl(dev->regs + GSC_IN_CON); |
| 377 | cfg &= ~GSC_IN_ROT_MASK; |
| 378 | |
| 379 | switch (ctx->gsc_ctrls.rotate->val) { |
| 380 | case 270: |
| 381 | cfg |= GSC_IN_ROT_270; |
| 382 | break; |
| 383 | case 180: |
| 384 | cfg |= GSC_IN_ROT_180; |
| 385 | break; |
| 386 | case 90: |
| 387 | if (ctx->gsc_ctrls.hflip->val) |
| 388 | cfg |= GSC_IN_ROT_90_XFLIP; |
| 389 | else if (ctx->gsc_ctrls.vflip->val) |
| 390 | cfg |= GSC_IN_ROT_90_YFLIP; |
| 391 | else |
| 392 | cfg |= GSC_IN_ROT_90; |
| 393 | break; |
| 394 | case 0: |
| 395 | if (ctx->gsc_ctrls.hflip->val) |
| 396 | cfg |= GSC_IN_ROT_XFLIP; |
| 397 | else if (ctx->gsc_ctrls.vflip->val) |
| 398 | cfg |= GSC_IN_ROT_YFLIP; |
| 399 | } |
| 400 | |
| 401 | writel(cfg, dev->regs + GSC_IN_CON); |
| 402 | } |
| 403 | |
| 404 | void gsc_hw_set_global_alpha(struct gsc_ctx *ctx) |
| 405 | { |
| 406 | struct gsc_dev *dev = ctx->gsc_dev; |
| 407 | struct gsc_frame *frame = &ctx->d_frame; |
| 408 | u32 cfg; |
| 409 | |
| 410 | if (!is_rgb(frame->fmt->color)) { |
| 411 | pr_debug("Not a RGB format"); |
| 412 | return; |
| 413 | } |
| 414 | |
| 415 | cfg = readl(dev->regs + GSC_OUT_CON); |
| 416 | cfg &= ~GSC_OUT_GLOBAL_ALPHA_MASK; |
| 417 | |
| 418 | cfg |= GSC_OUT_GLOBAL_ALPHA(ctx->gsc_ctrls.global_alpha->val); |
| 419 | writel(cfg, dev->regs + GSC_OUT_CON); |
| 420 | } |
| 421 | |
| 422 | void gsc_hw_set_sfr_update(struct gsc_ctx *ctx) |
| 423 | { |
| 424 | struct gsc_dev *dev = ctx->gsc_dev; |
| 425 | u32 cfg; |
| 426 | |
| 427 | cfg = readl(dev->regs + GSC_ENABLE); |
| 428 | cfg |= GSC_ENABLE_SFR_UPDATE; |
| 429 | writel(cfg, dev->regs + GSC_ENABLE); |
| 430 | } |