Pavel Machek | d480ace | 2009-09-22 16:47:03 -0700 | [diff] [blame] | 1 | /* drivers/video/msm/mdp_ppp.c |
| 2 | * |
| 3 | * Copyright (C) 2007 QUALCOMM Incorporated |
| 4 | * Copyright (C) 2007 Google Incorporated |
| 5 | * |
| 6 | * This software is licensed under the terms of the GNU General Public |
| 7 | * License version 2, as published by the Free Software Foundation, and |
| 8 | * may be copied, distributed, and modified under those terms. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | */ |
| 15 | #include <linux/fb.h> |
| 16 | #include <linux/file.h> |
| 17 | #include <linux/delay.h> |
| 18 | #include <linux/msm_mdp.h> |
Arnd Bergmann | 1ef21f6 | 2012-08-24 15:14:41 +0200 | [diff] [blame] | 19 | #include <linux/platform_data/video-msm_fb.h> |
Pavel Machek | d480ace | 2009-09-22 16:47:03 -0700 | [diff] [blame] | 20 | |
| 21 | #include "mdp_hw.h" |
| 22 | #include "mdp_scale_tables.h" |
| 23 | |
| 24 | #define DLOG(x...) do {} while (0) |
| 25 | |
| 26 | #define MDP_DOWNSCALE_BLUR (MDP_DOWNSCALE_MAX + 1) |
| 27 | static int downscale_y_table = MDP_DOWNSCALE_MAX; |
| 28 | static int downscale_x_table = MDP_DOWNSCALE_MAX; |
| 29 | |
| 30 | struct mdp_regs { |
| 31 | uint32_t src0; |
| 32 | uint32_t src1; |
| 33 | uint32_t dst0; |
| 34 | uint32_t dst1; |
| 35 | uint32_t src_cfg; |
| 36 | uint32_t dst_cfg; |
| 37 | uint32_t src_pack; |
| 38 | uint32_t dst_pack; |
| 39 | uint32_t src_rect; |
| 40 | uint32_t dst_rect; |
| 41 | uint32_t src_ystride; |
| 42 | uint32_t dst_ystride; |
| 43 | uint32_t op; |
| 44 | uint32_t src_bpp; |
| 45 | uint32_t dst_bpp; |
| 46 | uint32_t edge; |
| 47 | uint32_t phasex_init; |
| 48 | uint32_t phasey_init; |
| 49 | uint32_t phasex_step; |
| 50 | uint32_t phasey_step; |
| 51 | }; |
| 52 | |
| 53 | static uint32_t pack_pattern[] = { |
| 54 | PPP_ARRAY0(PACK_PATTERN) |
| 55 | }; |
| 56 | |
| 57 | static uint32_t src_img_cfg[] = { |
| 58 | PPP_ARRAY1(CFG, SRC) |
| 59 | }; |
| 60 | |
| 61 | static uint32_t dst_img_cfg[] = { |
| 62 | PPP_ARRAY1(CFG, DST) |
| 63 | }; |
| 64 | |
| 65 | static uint32_t bytes_per_pixel[] = { |
| 66 | [MDP_RGB_565] = 2, |
| 67 | [MDP_RGB_888] = 3, |
| 68 | [MDP_XRGB_8888] = 4, |
| 69 | [MDP_ARGB_8888] = 4, |
| 70 | [MDP_RGBA_8888] = 4, |
| 71 | [MDP_BGRA_8888] = 4, |
Dima Zavin | a8d380f | 2011-03-02 13:17:08 -0800 | [diff] [blame] | 72 | [MDP_RGBX_8888] = 4, |
Pavel Machek | d480ace | 2009-09-22 16:47:03 -0700 | [diff] [blame] | 73 | [MDP_Y_CBCR_H2V1] = 1, |
| 74 | [MDP_Y_CBCR_H2V2] = 1, |
| 75 | [MDP_Y_CRCB_H2V1] = 1, |
| 76 | [MDP_Y_CRCB_H2V2] = 1, |
| 77 | [MDP_YCRYCB_H2V1] = 2 |
| 78 | }; |
| 79 | |
| 80 | static uint32_t dst_op_chroma[] = { |
| 81 | PPP_ARRAY1(CHROMA_SAMP, DST) |
| 82 | }; |
| 83 | |
| 84 | static uint32_t src_op_chroma[] = { |
| 85 | PPP_ARRAY1(CHROMA_SAMP, SRC) |
| 86 | }; |
| 87 | |
| 88 | static uint32_t bg_op_chroma[] = { |
| 89 | PPP_ARRAY1(CHROMA_SAMP, BG) |
| 90 | }; |
| 91 | |
| 92 | static void rotate_dst_addr_x(struct mdp_blit_req *req, struct mdp_regs *regs) |
| 93 | { |
| 94 | regs->dst0 += (req->dst_rect.w - |
| 95 | min((uint32_t)16, req->dst_rect.w)) * regs->dst_bpp; |
| 96 | regs->dst1 += (req->dst_rect.w - |
| 97 | min((uint32_t)16, req->dst_rect.w)) * regs->dst_bpp; |
| 98 | } |
| 99 | |
| 100 | static void rotate_dst_addr_y(struct mdp_blit_req *req, struct mdp_regs *regs) |
| 101 | { |
| 102 | regs->dst0 += (req->dst_rect.h - |
| 103 | min((uint32_t)16, req->dst_rect.h)) * |
| 104 | regs->dst_ystride; |
| 105 | regs->dst1 += (req->dst_rect.h - |
| 106 | min((uint32_t)16, req->dst_rect.h)) * |
| 107 | regs->dst_ystride; |
| 108 | } |
| 109 | |
| 110 | static void blit_rotate(struct mdp_blit_req *req, |
| 111 | struct mdp_regs *regs) |
| 112 | { |
| 113 | if (req->flags == MDP_ROT_NOP) |
| 114 | return; |
| 115 | |
| 116 | regs->op |= PPP_OP_ROT_ON; |
| 117 | if ((req->flags & MDP_ROT_90 || req->flags & MDP_FLIP_LR) && |
| 118 | !(req->flags & MDP_ROT_90 && req->flags & MDP_FLIP_LR)) |
| 119 | rotate_dst_addr_x(req, regs); |
| 120 | if (req->flags & MDP_ROT_90) |
| 121 | regs->op |= PPP_OP_ROT_90; |
| 122 | if (req->flags & MDP_FLIP_UD) { |
| 123 | regs->op |= PPP_OP_FLIP_UD; |
| 124 | rotate_dst_addr_y(req, regs); |
| 125 | } |
| 126 | if (req->flags & MDP_FLIP_LR) |
| 127 | regs->op |= PPP_OP_FLIP_LR; |
| 128 | } |
| 129 | |
| 130 | static void blit_convert(struct mdp_blit_req *req, struct mdp_regs *regs) |
| 131 | { |
| 132 | if (req->src.format == req->dst.format) |
| 133 | return; |
| 134 | if (IS_RGB(req->src.format) && IS_YCRCB(req->dst.format)) { |
| 135 | regs->op |= PPP_OP_CONVERT_RGB2YCBCR | PPP_OP_CONVERT_ON; |
| 136 | } else if (IS_YCRCB(req->src.format) && IS_RGB(req->dst.format)) { |
| 137 | regs->op |= PPP_OP_CONVERT_YCBCR2RGB | PPP_OP_CONVERT_ON; |
| 138 | if (req->dst.format == MDP_RGB_565) |
| 139 | regs->op |= PPP_OP_CONVERT_MATRIX_SECONDARY; |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | #define GET_BIT_RANGE(value, high, low) \ |
| 144 | (((1 << (high - low + 1)) - 1) & (value >> low)) |
| 145 | static uint32_t transp_convert(struct mdp_blit_req *req) |
| 146 | { |
| 147 | uint32_t transp = 0; |
| 148 | if (req->src.format == MDP_RGB_565) { |
| 149 | /* pad each value to 8 bits by copying the high bits into the |
| 150 | * low end, convert RGB to RBG by switching low 2 components */ |
| 151 | transp |= ((GET_BIT_RANGE(req->transp_mask, 15, 11) << 3) | |
| 152 | (GET_BIT_RANGE(req->transp_mask, 15, 13))) << 16; |
| 153 | |
| 154 | transp |= ((GET_BIT_RANGE(req->transp_mask, 4, 0) << 3) | |
| 155 | (GET_BIT_RANGE(req->transp_mask, 4, 2))) << 8; |
| 156 | |
| 157 | transp |= (GET_BIT_RANGE(req->transp_mask, 10, 5) << 2) | |
| 158 | (GET_BIT_RANGE(req->transp_mask, 10, 9)); |
| 159 | } else { |
| 160 | /* convert RGB to RBG */ |
| 161 | transp |= (GET_BIT_RANGE(req->transp_mask, 15, 8)) | |
| 162 | (GET_BIT_RANGE(req->transp_mask, 23, 16) << 16) | |
| 163 | (GET_BIT_RANGE(req->transp_mask, 7, 0) << 8); |
| 164 | } |
| 165 | return transp; |
| 166 | } |
| 167 | #undef GET_BIT_RANGE |
| 168 | |
| 169 | static void blit_blend(struct mdp_blit_req *req, struct mdp_regs *regs) |
| 170 | { |
| 171 | /* TRANSP BLEND */ |
| 172 | if (req->transp_mask != MDP_TRANSP_NOP) { |
| 173 | req->transp_mask = transp_convert(req); |
| 174 | if (req->alpha != MDP_ALPHA_NOP) { |
| 175 | /* use blended transparancy mode |
| 176 | * pixel = (src == transp) ? dst : blend |
| 177 | * blend is combo of blend_eq_sel and |
| 178 | * blend_alpha_sel */ |
| 179 | regs->op |= PPP_OP_ROT_ON | PPP_OP_BLEND_ON | |
| 180 | PPP_OP_BLEND_ALPHA_BLEND_NORMAL | |
| 181 | PPP_OP_BLEND_CONSTANT_ALPHA | |
| 182 | PPP_BLEND_ALPHA_TRANSP; |
| 183 | } else { |
| 184 | /* simple transparancy mode |
| 185 | * pixel = (src == transp) ? dst : src */ |
| 186 | regs->op |= PPP_OP_ROT_ON | PPP_OP_BLEND_ON | |
| 187 | PPP_OP_BLEND_SRCPIXEL_TRANSP; |
| 188 | } |
| 189 | } |
| 190 | |
| 191 | req->alpha &= 0xff; |
| 192 | /* ALPHA BLEND */ |
| 193 | if (HAS_ALPHA(req->src.format)) { |
| 194 | regs->op |= PPP_OP_ROT_ON | PPP_OP_BLEND_ON | |
| 195 | PPP_OP_BLEND_SRCPIXEL_ALPHA; |
| 196 | } else if (req->alpha < MDP_ALPHA_NOP) { |
| 197 | /* just blend by alpha */ |
| 198 | regs->op |= PPP_OP_ROT_ON | PPP_OP_BLEND_ON | |
| 199 | PPP_OP_BLEND_ALPHA_BLEND_NORMAL | |
| 200 | PPP_OP_BLEND_CONSTANT_ALPHA; |
| 201 | } |
| 202 | |
| 203 | regs->op |= bg_op_chroma[req->dst.format]; |
| 204 | } |
| 205 | |
| 206 | #define ONE_HALF (1LL << 32) |
| 207 | #define ONE (1LL << 33) |
| 208 | #define TWO (2LL << 33) |
| 209 | #define THREE (3LL << 33) |
| 210 | #define FRAC_MASK (ONE - 1) |
| 211 | #define INT_MASK (~FRAC_MASK) |
| 212 | |
| 213 | static int scale_params(uint32_t dim_in, uint32_t dim_out, uint32_t origin, |
| 214 | uint32_t *phase_init, uint32_t *phase_step) |
| 215 | { |
| 216 | /* to improve precicsion calculations are done in U31.33 and converted |
| 217 | * to U3.29 at the end */ |
| 218 | int64_t k1, k2, k3, k4, tmp; |
| 219 | uint64_t n, d, os, os_p, od, od_p, oreq; |
| 220 | unsigned rpa = 0; |
| 221 | int64_t ip64, delta; |
| 222 | |
| 223 | if (dim_out % 3 == 0) |
| 224 | rpa = !(dim_in % (dim_out / 3)); |
| 225 | |
| 226 | n = ((uint64_t)dim_out) << 34; |
| 227 | d = dim_in; |
| 228 | if (!d) |
| 229 | return -1; |
| 230 | do_div(n, d); |
| 231 | k3 = (n + 1) >> 1; |
| 232 | if ((k3 >> 4) < (1LL << 27) || (k3 >> 4) > (1LL << 31)) { |
| 233 | DLOG("crap bad scale\n"); |
| 234 | return -1; |
| 235 | } |
| 236 | n = ((uint64_t)dim_in) << 34; |
| 237 | d = (uint64_t)dim_out; |
| 238 | if (!d) |
| 239 | return -1; |
| 240 | do_div(n, d); |
| 241 | k1 = (n + 1) >> 1; |
| 242 | k2 = (k1 - ONE) >> 1; |
| 243 | |
| 244 | *phase_init = (int)(k2 >> 4); |
| 245 | k4 = (k3 - ONE) >> 1; |
| 246 | |
| 247 | if (rpa) { |
| 248 | os = ((uint64_t)origin << 33) - ONE_HALF; |
| 249 | tmp = (dim_out * os) + ONE_HALF; |
| 250 | if (!dim_in) |
| 251 | return -1; |
| 252 | do_div(tmp, dim_in); |
| 253 | od = tmp - ONE_HALF; |
| 254 | } else { |
| 255 | os = ((uint64_t)origin << 1) - 1; |
| 256 | od = (((k3 * os) >> 1) + k4); |
| 257 | } |
| 258 | |
| 259 | od_p = od & INT_MASK; |
| 260 | if (od_p != od) |
| 261 | od_p += ONE; |
| 262 | |
| 263 | if (rpa) { |
| 264 | tmp = (dim_in * od_p) + ONE_HALF; |
| 265 | if (!dim_in) |
| 266 | return -1; |
| 267 | do_div(tmp, dim_in); |
| 268 | os_p = tmp - ONE_HALF; |
| 269 | } else { |
| 270 | os_p = ((k1 * (od_p >> 33)) + k2); |
| 271 | } |
| 272 | |
| 273 | oreq = (os_p & INT_MASK) - ONE; |
| 274 | |
| 275 | ip64 = os_p - oreq; |
| 276 | delta = ((int64_t)(origin) << 33) - oreq; |
| 277 | ip64 -= delta; |
| 278 | /* limit to valid range before the left shift */ |
| 279 | delta = (ip64 & (1LL << 63)) ? 4 : -4; |
| 280 | delta <<= 33; |
| 281 | while (abs((int)(ip64 >> 33)) > 4) |
| 282 | ip64 += delta; |
| 283 | *phase_init = (int)(ip64 >> 4); |
| 284 | *phase_step = (uint32_t)(k1 >> 4); |
| 285 | return 0; |
| 286 | } |
| 287 | |
| 288 | static void load_scale_table(const struct mdp_info *mdp, |
| 289 | struct mdp_table_entry *table, int len) |
| 290 | { |
| 291 | int i; |
| 292 | for (i = 0; i < len; i++) |
| 293 | mdp_writel(mdp, table[i].val, table[i].reg); |
| 294 | } |
| 295 | |
| 296 | enum { |
| 297 | IMG_LEFT, |
| 298 | IMG_RIGHT, |
| 299 | IMG_TOP, |
| 300 | IMG_BOTTOM, |
| 301 | }; |
| 302 | |
| 303 | static void get_edge_info(uint32_t src, uint32_t src_coord, uint32_t dst, |
| 304 | uint32_t *interp1, uint32_t *interp2, |
| 305 | uint32_t *repeat1, uint32_t *repeat2) { |
| 306 | if (src > 3 * dst) { |
| 307 | *interp1 = 0; |
| 308 | *interp2 = src - 1; |
| 309 | *repeat1 = 0; |
| 310 | *repeat2 = 0; |
| 311 | } else if (src == 3 * dst) { |
| 312 | *interp1 = 0; |
| 313 | *interp2 = src; |
| 314 | *repeat1 = 0; |
| 315 | *repeat2 = 1; |
| 316 | } else if (src > dst && src < 3 * dst) { |
| 317 | *interp1 = -1; |
| 318 | *interp2 = src; |
| 319 | *repeat1 = 1; |
| 320 | *repeat2 = 1; |
| 321 | } else if (src == dst) { |
| 322 | *interp1 = -1; |
| 323 | *interp2 = src + 1; |
| 324 | *repeat1 = 1; |
| 325 | *repeat2 = 2; |
| 326 | } else { |
| 327 | *interp1 = -2; |
| 328 | *interp2 = src + 1; |
| 329 | *repeat1 = 2; |
| 330 | *repeat2 = 2; |
| 331 | } |
| 332 | *interp1 += src_coord; |
| 333 | *interp2 += src_coord; |
| 334 | } |
| 335 | |
| 336 | static int get_edge_cond(struct mdp_blit_req *req, struct mdp_regs *regs) |
| 337 | { |
| 338 | int32_t luma_interp[4]; |
| 339 | int32_t luma_repeat[4]; |
| 340 | int32_t chroma_interp[4]; |
| 341 | int32_t chroma_bound[4]; |
| 342 | int32_t chroma_repeat[4]; |
| 343 | uint32_t dst_w, dst_h; |
| 344 | |
| 345 | memset(&luma_interp, 0, sizeof(int32_t) * 4); |
| 346 | memset(&luma_repeat, 0, sizeof(int32_t) * 4); |
| 347 | memset(&chroma_interp, 0, sizeof(int32_t) * 4); |
| 348 | memset(&chroma_bound, 0, sizeof(int32_t) * 4); |
| 349 | memset(&chroma_repeat, 0, sizeof(int32_t) * 4); |
| 350 | regs->edge = 0; |
| 351 | |
| 352 | if (req->flags & MDP_ROT_90) { |
| 353 | dst_w = req->dst_rect.h; |
| 354 | dst_h = req->dst_rect.w; |
| 355 | } else { |
| 356 | dst_w = req->dst_rect.w; |
| 357 | dst_h = req->dst_rect.h; |
| 358 | } |
| 359 | |
| 360 | if (regs->op & (PPP_OP_SCALE_Y_ON | PPP_OP_SCALE_X_ON)) { |
| 361 | get_edge_info(req->src_rect.h, req->src_rect.y, dst_h, |
| 362 | &luma_interp[IMG_TOP], &luma_interp[IMG_BOTTOM], |
| 363 | &luma_repeat[IMG_TOP], &luma_repeat[IMG_BOTTOM]); |
| 364 | get_edge_info(req->src_rect.w, req->src_rect.x, dst_w, |
| 365 | &luma_interp[IMG_LEFT], &luma_interp[IMG_RIGHT], |
| 366 | &luma_repeat[IMG_LEFT], &luma_repeat[IMG_RIGHT]); |
| 367 | } else { |
| 368 | luma_interp[IMG_LEFT] = req->src_rect.x; |
| 369 | luma_interp[IMG_RIGHT] = req->src_rect.x + req->src_rect.w - 1; |
| 370 | luma_interp[IMG_TOP] = req->src_rect.y; |
| 371 | luma_interp[IMG_BOTTOM] = req->src_rect.y + req->src_rect.h - 1; |
| 372 | luma_repeat[IMG_LEFT] = 0; |
| 373 | luma_repeat[IMG_TOP] = 0; |
| 374 | luma_repeat[IMG_RIGHT] = 0; |
| 375 | luma_repeat[IMG_BOTTOM] = 0; |
| 376 | } |
| 377 | |
| 378 | chroma_interp[IMG_LEFT] = luma_interp[IMG_LEFT]; |
| 379 | chroma_interp[IMG_RIGHT] = luma_interp[IMG_RIGHT]; |
| 380 | chroma_interp[IMG_TOP] = luma_interp[IMG_TOP]; |
| 381 | chroma_interp[IMG_BOTTOM] = luma_interp[IMG_BOTTOM]; |
| 382 | |
| 383 | chroma_bound[IMG_LEFT] = req->src_rect.x; |
| 384 | chroma_bound[IMG_RIGHT] = req->src_rect.x + req->src_rect.w - 1; |
| 385 | chroma_bound[IMG_TOP] = req->src_rect.y; |
| 386 | chroma_bound[IMG_BOTTOM] = req->src_rect.y + req->src_rect.h - 1; |
| 387 | |
| 388 | if (IS_YCRCB(req->src.format)) { |
| 389 | chroma_interp[IMG_LEFT] = chroma_interp[IMG_LEFT] >> 1; |
| 390 | chroma_interp[IMG_RIGHT] = (chroma_interp[IMG_RIGHT] + 1) >> 1; |
| 391 | |
| 392 | chroma_bound[IMG_LEFT] = chroma_bound[IMG_LEFT] >> 1; |
| 393 | chroma_bound[IMG_RIGHT] = chroma_bound[IMG_RIGHT] >> 1; |
| 394 | } |
| 395 | |
| 396 | if (req->src.format == MDP_Y_CBCR_H2V2 || |
| 397 | req->src.format == MDP_Y_CRCB_H2V2) { |
| 398 | chroma_interp[IMG_TOP] = (chroma_interp[IMG_TOP] - 1) >> 1; |
| 399 | chroma_interp[IMG_BOTTOM] = (chroma_interp[IMG_BOTTOM] + 1) |
| 400 | >> 1; |
| 401 | chroma_bound[IMG_TOP] = (chroma_bound[IMG_TOP] + 1) >> 1; |
| 402 | chroma_bound[IMG_BOTTOM] = chroma_bound[IMG_BOTTOM] >> 1; |
| 403 | } |
| 404 | |
| 405 | chroma_repeat[IMG_LEFT] = chroma_bound[IMG_LEFT] - |
| 406 | chroma_interp[IMG_LEFT]; |
| 407 | chroma_repeat[IMG_RIGHT] = chroma_interp[IMG_RIGHT] - |
| 408 | chroma_bound[IMG_RIGHT]; |
| 409 | chroma_repeat[IMG_TOP] = chroma_bound[IMG_TOP] - |
| 410 | chroma_interp[IMG_TOP]; |
| 411 | chroma_repeat[IMG_BOTTOM] = chroma_interp[IMG_BOTTOM] - |
| 412 | chroma_bound[IMG_BOTTOM]; |
| 413 | |
| 414 | if (chroma_repeat[IMG_LEFT] < 0 || chroma_repeat[IMG_LEFT] > 3 || |
| 415 | chroma_repeat[IMG_RIGHT] < 0 || chroma_repeat[IMG_RIGHT] > 3 || |
| 416 | chroma_repeat[IMG_TOP] < 0 || chroma_repeat[IMG_TOP] > 3 || |
| 417 | chroma_repeat[IMG_BOTTOM] < 0 || chroma_repeat[IMG_BOTTOM] > 3 || |
| 418 | luma_repeat[IMG_LEFT] < 0 || luma_repeat[IMG_LEFT] > 3 || |
| 419 | luma_repeat[IMG_RIGHT] < 0 || luma_repeat[IMG_RIGHT] > 3 || |
| 420 | luma_repeat[IMG_TOP] < 0 || luma_repeat[IMG_TOP] > 3 || |
| 421 | luma_repeat[IMG_BOTTOM] < 0 || luma_repeat[IMG_BOTTOM] > 3) |
| 422 | return -1; |
| 423 | |
| 424 | regs->edge |= (chroma_repeat[IMG_LEFT] & 3) << MDP_LEFT_CHROMA; |
| 425 | regs->edge |= (chroma_repeat[IMG_RIGHT] & 3) << MDP_RIGHT_CHROMA; |
| 426 | regs->edge |= (chroma_repeat[IMG_TOP] & 3) << MDP_TOP_CHROMA; |
| 427 | regs->edge |= (chroma_repeat[IMG_BOTTOM] & 3) << MDP_BOTTOM_CHROMA; |
| 428 | regs->edge |= (luma_repeat[IMG_LEFT] & 3) << MDP_LEFT_LUMA; |
| 429 | regs->edge |= (luma_repeat[IMG_RIGHT] & 3) << MDP_RIGHT_LUMA; |
| 430 | regs->edge |= (luma_repeat[IMG_TOP] & 3) << MDP_TOP_LUMA; |
| 431 | regs->edge |= (luma_repeat[IMG_BOTTOM] & 3) << MDP_BOTTOM_LUMA; |
| 432 | return 0; |
| 433 | } |
| 434 | |
| 435 | static int blit_scale(const struct mdp_info *mdp, struct mdp_blit_req *req, |
| 436 | struct mdp_regs *regs) |
| 437 | { |
| 438 | uint32_t phase_init_x, phase_init_y, phase_step_x, phase_step_y; |
| 439 | uint32_t scale_factor_x, scale_factor_y; |
| 440 | uint32_t downscale; |
| 441 | uint32_t dst_w, dst_h; |
| 442 | |
| 443 | if (req->flags & MDP_ROT_90) { |
| 444 | dst_w = req->dst_rect.h; |
| 445 | dst_h = req->dst_rect.w; |
| 446 | } else { |
| 447 | dst_w = req->dst_rect.w; |
| 448 | dst_h = req->dst_rect.h; |
| 449 | } |
| 450 | if ((req->src_rect.w == dst_w) && (req->src_rect.h == dst_h) && |
| 451 | !(req->flags & MDP_BLUR)) { |
| 452 | regs->phasex_init = 0; |
| 453 | regs->phasey_init = 0; |
| 454 | regs->phasex_step = 0; |
| 455 | regs->phasey_step = 0; |
| 456 | return 0; |
| 457 | } |
| 458 | |
| 459 | if (scale_params(req->src_rect.w, dst_w, 1, &phase_init_x, |
| 460 | &phase_step_x) || |
| 461 | scale_params(req->src_rect.h, dst_h, 1, &phase_init_y, |
| 462 | &phase_step_y)) |
| 463 | return -1; |
| 464 | |
| 465 | scale_factor_x = (dst_w * 10) / req->src_rect.w; |
| 466 | scale_factor_y = (dst_h * 10) / req->src_rect.h; |
| 467 | |
| 468 | if (scale_factor_x > 8) |
| 469 | downscale = MDP_DOWNSCALE_PT8TO1; |
| 470 | else if (scale_factor_x > 6) |
| 471 | downscale = MDP_DOWNSCALE_PT6TOPT8; |
| 472 | else if (scale_factor_x > 4) |
| 473 | downscale = MDP_DOWNSCALE_PT4TOPT6; |
| 474 | else |
| 475 | downscale = MDP_DOWNSCALE_PT2TOPT4; |
| 476 | if (downscale != downscale_x_table) { |
| 477 | load_scale_table(mdp, mdp_downscale_x_table[downscale], 64); |
| 478 | downscale_x_table = downscale; |
| 479 | } |
| 480 | |
| 481 | if (scale_factor_y > 8) |
| 482 | downscale = MDP_DOWNSCALE_PT8TO1; |
| 483 | else if (scale_factor_y > 6) |
| 484 | downscale = MDP_DOWNSCALE_PT6TOPT8; |
| 485 | else if (scale_factor_y > 4) |
| 486 | downscale = MDP_DOWNSCALE_PT4TOPT6; |
| 487 | else |
| 488 | downscale = MDP_DOWNSCALE_PT2TOPT4; |
| 489 | if (downscale != downscale_y_table) { |
| 490 | load_scale_table(mdp, mdp_downscale_y_table[downscale], 64); |
| 491 | downscale_y_table = downscale; |
| 492 | } |
| 493 | |
| 494 | regs->phasex_init = phase_init_x; |
| 495 | regs->phasey_init = phase_init_y; |
| 496 | regs->phasex_step = phase_step_x; |
| 497 | regs->phasey_step = phase_step_y; |
| 498 | regs->op |= (PPP_OP_SCALE_Y_ON | PPP_OP_SCALE_X_ON); |
| 499 | return 0; |
| 500 | |
| 501 | } |
| 502 | |
| 503 | static void blit_blur(const struct mdp_info *mdp, struct mdp_blit_req *req, |
| 504 | struct mdp_regs *regs) |
| 505 | { |
| 506 | if (!(req->flags & MDP_BLUR)) |
| 507 | return; |
| 508 | |
| 509 | if (!(downscale_x_table == MDP_DOWNSCALE_BLUR && |
| 510 | downscale_y_table == MDP_DOWNSCALE_BLUR)) { |
| 511 | load_scale_table(mdp, mdp_gaussian_blur_table, 128); |
| 512 | downscale_x_table = MDP_DOWNSCALE_BLUR; |
| 513 | downscale_y_table = MDP_DOWNSCALE_BLUR; |
| 514 | } |
| 515 | |
| 516 | regs->op |= (PPP_OP_SCALE_Y_ON | PPP_OP_SCALE_X_ON); |
| 517 | } |
| 518 | |
| 519 | |
| 520 | #define IMG_LEN(rect_h, w, rect_w, bpp) (((rect_h) * w) * bpp) |
| 521 | |
| 522 | #define Y_TO_CRCB_RATIO(format) \ |
| 523 | ((format == MDP_Y_CBCR_H2V2 || format == MDP_Y_CRCB_H2V2) ? 2 :\ |
| 524 | (format == MDP_Y_CBCR_H2V1 || format == MDP_Y_CRCB_H2V1) ? 1 : 1) |
| 525 | |
| 526 | static void get_len(struct mdp_img *img, struct mdp_rect *rect, uint32_t bpp, |
| 527 | uint32_t *len0, uint32_t *len1) |
| 528 | { |
| 529 | *len0 = IMG_LEN(rect->h, img->width, rect->w, bpp); |
| 530 | if (IS_PSEUDOPLNR(img->format)) |
| 531 | *len1 = *len0/Y_TO_CRCB_RATIO(img->format); |
| 532 | else |
| 533 | *len1 = 0; |
| 534 | } |
| 535 | |
| 536 | static int valid_src_dst(unsigned long src_start, unsigned long src_len, |
| 537 | unsigned long dst_start, unsigned long dst_len, |
| 538 | struct mdp_blit_req *req, struct mdp_regs *regs) |
| 539 | { |
| 540 | unsigned long src_min_ok = src_start; |
| 541 | unsigned long src_max_ok = src_start + src_len; |
| 542 | unsigned long dst_min_ok = dst_start; |
| 543 | unsigned long dst_max_ok = dst_start + dst_len; |
| 544 | uint32_t src0_len, src1_len, dst0_len, dst1_len; |
| 545 | get_len(&req->src, &req->src_rect, regs->src_bpp, &src0_len, |
| 546 | &src1_len); |
| 547 | get_len(&req->dst, &req->dst_rect, regs->dst_bpp, &dst0_len, |
| 548 | &dst1_len); |
| 549 | |
| 550 | if (regs->src0 < src_min_ok || regs->src0 > src_max_ok || |
| 551 | regs->src0 + src0_len > src_max_ok) { |
| 552 | DLOG("invalid_src %x %x %lx %lx\n", regs->src0, |
| 553 | src0_len, src_min_ok, src_max_ok); |
| 554 | return 0; |
| 555 | } |
| 556 | if (regs->src_cfg & PPP_SRC_PLANE_PSEUDOPLNR) { |
| 557 | if (regs->src1 < src_min_ok || regs->src1 > src_max_ok || |
| 558 | regs->src1 + src1_len > src_max_ok) { |
| 559 | DLOG("invalid_src1"); |
| 560 | return 0; |
| 561 | } |
| 562 | } |
| 563 | if (regs->dst0 < dst_min_ok || regs->dst0 > dst_max_ok || |
| 564 | regs->dst0 + dst0_len > dst_max_ok) { |
| 565 | DLOG("invalid_dst"); |
| 566 | return 0; |
| 567 | } |
| 568 | if (regs->dst_cfg & PPP_SRC_PLANE_PSEUDOPLNR) { |
| 569 | if (regs->dst1 < dst_min_ok || regs->dst1 > dst_max_ok || |
| 570 | regs->dst1 + dst1_len > dst_max_ok) { |
| 571 | DLOG("invalid_dst1"); |
| 572 | return 0; |
| 573 | } |
| 574 | } |
| 575 | return 1; |
| 576 | } |
| 577 | |
| 578 | |
| 579 | static void flush_imgs(struct mdp_blit_req *req, struct mdp_regs *regs, |
| 580 | struct file *src_file, struct file *dst_file) |
| 581 | { |
Pavel Machek | d480ace | 2009-09-22 16:47:03 -0700 | [diff] [blame] | 582 | } |
| 583 | |
| 584 | static void get_chroma_addr(struct mdp_img *img, struct mdp_rect *rect, |
| 585 | uint32_t base, uint32_t bpp, uint32_t cfg, |
| 586 | uint32_t *addr, uint32_t *ystride) |
| 587 | { |
| 588 | uint32_t compress_v = Y_TO_CRCB_RATIO(img->format); |
| 589 | uint32_t compress_h = 2; |
| 590 | uint32_t offset; |
| 591 | |
| 592 | if (IS_PSEUDOPLNR(img->format)) { |
| 593 | offset = (rect->x / compress_h) * compress_h; |
| 594 | offset += rect->y == 0 ? 0 : |
| 595 | ((rect->y + 1) / compress_v) * img->width; |
| 596 | *addr = base + (img->width * img->height * bpp); |
| 597 | *addr += offset * bpp; |
| 598 | *ystride |= *ystride << 16; |
| 599 | } else { |
| 600 | *addr = 0; |
| 601 | } |
| 602 | } |
| 603 | |
| 604 | static int send_blit(const struct mdp_info *mdp, struct mdp_blit_req *req, |
| 605 | struct mdp_regs *regs, struct file *src_file, |
| 606 | struct file *dst_file) |
| 607 | { |
| 608 | mdp_writel(mdp, 1, 0x060); |
| 609 | mdp_writel(mdp, regs->src_rect, PPP_ADDR_SRC_ROI); |
| 610 | mdp_writel(mdp, regs->src0, PPP_ADDR_SRC0); |
| 611 | mdp_writel(mdp, regs->src1, PPP_ADDR_SRC1); |
| 612 | mdp_writel(mdp, regs->src_ystride, PPP_ADDR_SRC_YSTRIDE); |
| 613 | mdp_writel(mdp, regs->src_cfg, PPP_ADDR_SRC_CFG); |
| 614 | mdp_writel(mdp, regs->src_pack, PPP_ADDR_SRC_PACK_PATTERN); |
| 615 | |
| 616 | mdp_writel(mdp, regs->op, PPP_ADDR_OPERATION); |
| 617 | mdp_writel(mdp, regs->phasex_init, PPP_ADDR_PHASEX_INIT); |
| 618 | mdp_writel(mdp, regs->phasey_init, PPP_ADDR_PHASEY_INIT); |
| 619 | mdp_writel(mdp, regs->phasex_step, PPP_ADDR_PHASEX_STEP); |
| 620 | mdp_writel(mdp, regs->phasey_step, PPP_ADDR_PHASEY_STEP); |
| 621 | |
| 622 | mdp_writel(mdp, (req->alpha << 24) | (req->transp_mask & 0xffffff), |
| 623 | PPP_ADDR_ALPHA_TRANSP); |
| 624 | |
| 625 | mdp_writel(mdp, regs->dst_cfg, PPP_ADDR_DST_CFG); |
| 626 | mdp_writel(mdp, regs->dst_pack, PPP_ADDR_DST_PACK_PATTERN); |
| 627 | mdp_writel(mdp, regs->dst_rect, PPP_ADDR_DST_ROI); |
| 628 | mdp_writel(mdp, regs->dst0, PPP_ADDR_DST0); |
| 629 | mdp_writel(mdp, regs->dst1, PPP_ADDR_DST1); |
| 630 | mdp_writel(mdp, regs->dst_ystride, PPP_ADDR_DST_YSTRIDE); |
| 631 | |
| 632 | mdp_writel(mdp, regs->edge, PPP_ADDR_EDGE); |
| 633 | if (regs->op & PPP_OP_BLEND_ON) { |
| 634 | mdp_writel(mdp, regs->dst0, PPP_ADDR_BG0); |
| 635 | mdp_writel(mdp, regs->dst1, PPP_ADDR_BG1); |
| 636 | mdp_writel(mdp, regs->dst_ystride, PPP_ADDR_BG_YSTRIDE); |
| 637 | mdp_writel(mdp, src_img_cfg[req->dst.format], PPP_ADDR_BG_CFG); |
| 638 | mdp_writel(mdp, pack_pattern[req->dst.format], |
| 639 | PPP_ADDR_BG_PACK_PATTERN); |
| 640 | } |
| 641 | flush_imgs(req, regs, src_file, dst_file); |
| 642 | mdp_writel(mdp, 0x1000, MDP_DISPLAY0_START); |
| 643 | return 0; |
| 644 | } |
| 645 | |
| 646 | int mdp_ppp_blit(const struct mdp_info *mdp, struct mdp_blit_req *req, |
| 647 | struct file *src_file, unsigned long src_start, unsigned long src_len, |
| 648 | struct file *dst_file, unsigned long dst_start, unsigned long dst_len) |
| 649 | { |
| 650 | struct mdp_regs regs = {0}; |
| 651 | |
| 652 | if (unlikely(req->src.format >= MDP_IMGTYPE_LIMIT || |
| 653 | req->dst.format >= MDP_IMGTYPE_LIMIT)) { |
| 654 | printk(KERN_ERR "mpd_ppp: img is of wrong format\n"); |
| 655 | return -EINVAL; |
| 656 | } |
| 657 | |
| 658 | if (unlikely(req->src_rect.x > req->src.width || |
| 659 | req->src_rect.y > req->src.height || |
| 660 | req->dst_rect.x > req->dst.width || |
| 661 | req->dst_rect.y > req->dst.height)) { |
| 662 | printk(KERN_ERR "mpd_ppp: img rect is outside of img!\n"); |
| 663 | return -EINVAL; |
| 664 | } |
| 665 | |
| 666 | /* set the src image configuration */ |
| 667 | regs.src_cfg = src_img_cfg[req->src.format]; |
| 668 | regs.src_cfg |= (req->src_rect.x & 0x1) ? PPP_SRC_BPP_ROI_ODD_X : 0; |
| 669 | regs.src_cfg |= (req->src_rect.y & 0x1) ? PPP_SRC_BPP_ROI_ODD_Y : 0; |
| 670 | regs.src_rect = (req->src_rect.h << 16) | req->src_rect.w; |
| 671 | regs.src_pack = pack_pattern[req->src.format]; |
| 672 | |
| 673 | /* set the dest image configuration */ |
| 674 | regs.dst_cfg = dst_img_cfg[req->dst.format] | PPP_DST_OUT_SEL_AXI; |
| 675 | regs.dst_rect = (req->dst_rect.h << 16) | req->dst_rect.w; |
| 676 | regs.dst_pack = pack_pattern[req->dst.format]; |
| 677 | |
| 678 | /* set src, bpp, start pixel and ystride */ |
| 679 | regs.src_bpp = bytes_per_pixel[req->src.format]; |
| 680 | regs.src0 = src_start + req->src.offset; |
| 681 | regs.src_ystride = req->src.width * regs.src_bpp; |
| 682 | get_chroma_addr(&req->src, &req->src_rect, regs.src0, regs.src_bpp, |
| 683 | regs.src_cfg, ®s.src1, ®s.src_ystride); |
| 684 | regs.src0 += (req->src_rect.x + (req->src_rect.y * req->src.width)) * |
| 685 | regs.src_bpp; |
| 686 | |
| 687 | /* set dst, bpp, start pixel and ystride */ |
| 688 | regs.dst_bpp = bytes_per_pixel[req->dst.format]; |
| 689 | regs.dst0 = dst_start + req->dst.offset; |
| 690 | regs.dst_ystride = req->dst.width * regs.dst_bpp; |
| 691 | get_chroma_addr(&req->dst, &req->dst_rect, regs.dst0, regs.dst_bpp, |
| 692 | regs.dst_cfg, ®s.dst1, ®s.dst_ystride); |
| 693 | regs.dst0 += (req->dst_rect.x + (req->dst_rect.y * req->dst.width)) * |
| 694 | regs.dst_bpp; |
| 695 | |
| 696 | if (!valid_src_dst(src_start, src_len, dst_start, dst_len, req, |
| 697 | ®s)) { |
| 698 | printk(KERN_ERR "mpd_ppp: final src or dst location is " |
| 699 | "invalid, are you trying to make an image too large " |
| 700 | "or to place it outside the screen?\n"); |
| 701 | return -EINVAL; |
| 702 | } |
| 703 | |
| 704 | /* set up operation register */ |
| 705 | regs.op = 0; |
| 706 | blit_rotate(req, ®s); |
| 707 | blit_convert(req, ®s); |
| 708 | if (req->flags & MDP_DITHER) |
| 709 | regs.op |= PPP_OP_DITHER_EN; |
| 710 | blit_blend(req, ®s); |
| 711 | if (blit_scale(mdp, req, ®s)) { |
| 712 | printk(KERN_ERR "mpd_ppp: error computing scale for img.\n"); |
| 713 | return -EINVAL; |
| 714 | } |
| 715 | blit_blur(mdp, req, ®s); |
| 716 | regs.op |= dst_op_chroma[req->dst.format] | |
| 717 | src_op_chroma[req->src.format]; |
| 718 | |
| 719 | /* if the image is YCRYCB, the x and w must be even */ |
| 720 | if (unlikely(req->src.format == MDP_YCRYCB_H2V1)) { |
| 721 | req->src_rect.x = req->src_rect.x & (~0x1); |
| 722 | req->src_rect.w = req->src_rect.w & (~0x1); |
| 723 | req->dst_rect.x = req->dst_rect.x & (~0x1); |
| 724 | req->dst_rect.w = req->dst_rect.w & (~0x1); |
| 725 | } |
| 726 | if (get_edge_cond(req, ®s)) |
| 727 | return -EINVAL; |
| 728 | |
| 729 | send_blit(mdp, req, ®s, src_file, dst_file); |
| 730 | return 0; |
| 731 | } |