1 /* 2 * Copyright (C) 2012-2014 Mentor Graphics Inc. 3 * Copyright 2005-2012 Freescale Semiconductor, Inc. All Rights Reserved. 4 * 5 * The code contained herein is licensed under the GNU General Public 6 * License. You may obtain a copy of the GNU General Public License 7 * Version 2 or later at the following locations: 8 * 9 * http://www.opensource.org/licenses/gpl-license.html 10 * http://www.gnu.org/copyleft/gpl.html 11 */ 12 13 #include <linux/types.h> 14 #include <linux/init.h> 15 #include <linux/errno.h> 16 #include <linux/spinlock.h> 17 #include <linux/bitrev.h> 18 #include <linux/io.h> 19 #include <linux/err.h> 20 #include "ipu-prv.h" 21 22 /* IC Register Offsets */ 23 #define IC_CONF 0x0000 24 #define IC_PRP_ENC_RSC 0x0004 25 #define IC_PRP_VF_RSC 0x0008 26 #define IC_PP_RSC 0x000C 27 #define IC_CMBP_1 0x0010 28 #define IC_CMBP_2 0x0014 29 #define IC_IDMAC_1 0x0018 30 #define IC_IDMAC_2 0x001C 31 #define IC_IDMAC_3 0x0020 32 #define IC_IDMAC_4 0x0024 33 34 /* IC Register Fields */ 35 #define IC_CONF_PRPENC_EN (1 << 0) 36 #define IC_CONF_PRPENC_CSC1 (1 << 1) 37 #define IC_CONF_PRPENC_ROT_EN (1 << 2) 38 #define IC_CONF_PRPVF_EN (1 << 8) 39 #define IC_CONF_PRPVF_CSC1 (1 << 9) 40 #define IC_CONF_PRPVF_CSC2 (1 << 10) 41 #define IC_CONF_PRPVF_CMB (1 << 11) 42 #define IC_CONF_PRPVF_ROT_EN (1 << 12) 43 #define IC_CONF_PP_EN (1 << 16) 44 #define IC_CONF_PP_CSC1 (1 << 17) 45 #define IC_CONF_PP_CSC2 (1 << 18) 46 #define IC_CONF_PP_CMB (1 << 19) 47 #define IC_CONF_PP_ROT_EN (1 << 20) 48 #define IC_CONF_IC_GLB_LOC_A (1 << 28) 49 #define IC_CONF_KEY_COLOR_EN (1 << 29) 50 #define IC_CONF_RWS_EN (1 << 30) 51 #define IC_CONF_CSI_MEM_WR_EN (1 << 31) 52 53 #define IC_IDMAC_1_CB0_BURST_16 (1 << 0) 54 #define IC_IDMAC_1_CB1_BURST_16 (1 << 1) 55 #define IC_IDMAC_1_CB2_BURST_16 (1 << 2) 56 #define IC_IDMAC_1_CB3_BURST_16 (1 << 3) 57 #define IC_IDMAC_1_CB4_BURST_16 (1 << 4) 58 #define IC_IDMAC_1_CB5_BURST_16 (1 << 5) 59 #define IC_IDMAC_1_CB6_BURST_16 (1 << 6) 60 #define IC_IDMAC_1_CB7_BURST_16 (1 << 7) 61 #define IC_IDMAC_1_PRPENC_ROT_MASK (0x7 << 11) 62 #define IC_IDMAC_1_PRPENC_ROT_OFFSET 11 63 #define IC_IDMAC_1_PRPVF_ROT_MASK (0x7 << 14) 64 #define IC_IDMAC_1_PRPVF_ROT_OFFSET 14 65 #define IC_IDMAC_1_PP_ROT_MASK (0x7 << 17) 66 #define IC_IDMAC_1_PP_ROT_OFFSET 17 67 #define IC_IDMAC_1_PP_FLIP_RS (1 << 22) 68 #define IC_IDMAC_1_PRPVF_FLIP_RS (1 << 21) 69 #define IC_IDMAC_1_PRPENC_FLIP_RS (1 << 20) 70 71 #define IC_IDMAC_2_PRPENC_HEIGHT_MASK (0x3ff << 0) 72 #define IC_IDMAC_2_PRPENC_HEIGHT_OFFSET 0 73 #define IC_IDMAC_2_PRPVF_HEIGHT_MASK (0x3ff << 10) 74 #define IC_IDMAC_2_PRPVF_HEIGHT_OFFSET 10 75 #define IC_IDMAC_2_PP_HEIGHT_MASK (0x3ff << 20) 76 #define IC_IDMAC_2_PP_HEIGHT_OFFSET 20 77 78 #define IC_IDMAC_3_PRPENC_WIDTH_MASK (0x3ff << 0) 79 #define IC_IDMAC_3_PRPENC_WIDTH_OFFSET 0 80 #define IC_IDMAC_3_PRPVF_WIDTH_MASK (0x3ff << 10) 81 #define IC_IDMAC_3_PRPVF_WIDTH_OFFSET 10 82 #define IC_IDMAC_3_PP_WIDTH_MASK (0x3ff << 20) 83 #define IC_IDMAC_3_PP_WIDTH_OFFSET 20 84 85 struct ic_task_regoffs { 86 u32 rsc; 87 u32 tpmem_csc[2]; 88 }; 89 90 struct ic_task_bitfields { 91 u32 ic_conf_en; 92 u32 ic_conf_rot_en; 93 u32 ic_conf_cmb_en; 94 u32 ic_conf_csc1_en; 95 u32 ic_conf_csc2_en; 96 u32 ic_cmb_galpha_bit; 97 }; 98 99 static const struct ic_task_regoffs ic_task_reg[IC_NUM_TASKS] = { 100 [IC_TASK_ENCODER] = { 101 .rsc = IC_PRP_ENC_RSC, 102 .tpmem_csc = {0x2008, 0}, 103 }, 104 [IC_TASK_VIEWFINDER] = { 105 .rsc = IC_PRP_VF_RSC, 106 .tpmem_csc = {0x4028, 0x4040}, 107 }, 108 [IC_TASK_POST_PROCESSOR] = { 109 .rsc = IC_PP_RSC, 110 .tpmem_csc = {0x6060, 0x6078}, 111 }, 112 }; 113 114 static const struct ic_task_bitfields ic_task_bit[IC_NUM_TASKS] = { 115 [IC_TASK_ENCODER] = { 116 .ic_conf_en = IC_CONF_PRPENC_EN, 117 .ic_conf_rot_en = IC_CONF_PRPENC_ROT_EN, 118 .ic_conf_cmb_en = 0, /* NA */ 119 .ic_conf_csc1_en = IC_CONF_PRPENC_CSC1, 120 .ic_conf_csc2_en = 0, /* NA */ 121 .ic_cmb_galpha_bit = 0, /* NA */ 122 }, 123 [IC_TASK_VIEWFINDER] = { 124 .ic_conf_en = IC_CONF_PRPVF_EN, 125 .ic_conf_rot_en = IC_CONF_PRPVF_ROT_EN, 126 .ic_conf_cmb_en = IC_CONF_PRPVF_CMB, 127 .ic_conf_csc1_en = IC_CONF_PRPVF_CSC1, 128 .ic_conf_csc2_en = IC_CONF_PRPVF_CSC2, 129 .ic_cmb_galpha_bit = 0, 130 }, 131 [IC_TASK_POST_PROCESSOR] = { 132 .ic_conf_en = IC_CONF_PP_EN, 133 .ic_conf_rot_en = IC_CONF_PP_ROT_EN, 134 .ic_conf_cmb_en = IC_CONF_PP_CMB, 135 .ic_conf_csc1_en = IC_CONF_PP_CSC1, 136 .ic_conf_csc2_en = IC_CONF_PP_CSC2, 137 .ic_cmb_galpha_bit = 8, 138 }, 139 }; 140 141 struct ipu_ic_priv; 142 143 struct ipu_ic { 144 enum ipu_ic_task task; 145 const struct ic_task_regoffs *reg; 146 const struct ic_task_bitfields *bit; 147 148 enum ipu_color_space in_cs, g_in_cs; 149 enum ipu_color_space out_cs; 150 bool graphics; 151 bool rotation; 152 bool in_use; 153 154 struct ipu_ic_priv *priv; 155 }; 156 157 struct ipu_ic_priv { 158 void __iomem *base; 159 void __iomem *tpmem_base; 160 spinlock_t lock; 161 struct ipu_soc *ipu; 162 int use_count; 163 struct ipu_ic task[IC_NUM_TASKS]; 164 }; 165 166 static inline u32 ipu_ic_read(struct ipu_ic *ic, unsigned offset) 167 { 168 return readl(ic->priv->base + offset); 169 } 170 171 static inline void ipu_ic_write(struct ipu_ic *ic, u32 value, unsigned offset) 172 { 173 writel(value, ic->priv->base + offset); 174 } 175 176 struct ic_csc_params { 177 s16 coeff[3][3]; /* signed 9-bit integer coefficients */ 178 s16 offset[3]; /* signed 11+2-bit fixed point offset */ 179 u8 scale:2; /* scale coefficients * 2^(scale-1) */ 180 bool sat:1; /* saturate to (16, 235(Y) / 240(U, V)) */ 181 }; 182 183 /* 184 * Y = R * .299 + G * .587 + B * .114; 185 * U = R * -.169 + G * -.332 + B * .500 + 128.; 186 * V = R * .500 + G * -.419 + B * -.0813 + 128.; 187 */ 188 static const struct ic_csc_params ic_csc_rgb2ycbcr = { 189 .coeff = { 190 { 77, 150, 29 }, 191 { 469, 427, 128 }, 192 { 128, 405, 491 }, 193 }, 194 .offset = { 0, 512, 512 }, 195 .scale = 1, 196 }; 197 198 /* transparent RGB->RGB matrix for graphics combining */ 199 static const struct ic_csc_params ic_csc_rgb2rgb = { 200 .coeff = { 201 { 128, 0, 0 }, 202 { 0, 128, 0 }, 203 { 0, 0, 128 }, 204 }, 205 .scale = 2, 206 }; 207 208 /* 209 * R = (1.164 * (Y - 16)) + (1.596 * (Cr - 128)); 210 * G = (1.164 * (Y - 16)) - (0.392 * (Cb - 128)) - (0.813 * (Cr - 128)); 211 * B = (1.164 * (Y - 16)) + (2.017 * (Cb - 128); 212 */ 213 static const struct ic_csc_params ic_csc_ycbcr2rgb = { 214 .coeff = { 215 { 149, 0, 204 }, 216 { 149, 462, 408 }, 217 { 149, 255, 0 }, 218 }, 219 .offset = { -446, 266, -554 }, 220 .scale = 2, 221 }; 222 223 static int init_csc(struct ipu_ic *ic, 224 enum ipu_color_space inf, 225 enum ipu_color_space outf, 226 int csc_index) 227 { 228 struct ipu_ic_priv *priv = ic->priv; 229 const struct ic_csc_params *params; 230 u32 __iomem *base; 231 const u16 (*c)[3]; 232 const u16 *a; 233 u32 param; 234 235 base = (u32 __iomem *) 236 (priv->tpmem_base + ic->reg->tpmem_csc[csc_index]); 237 238 if (inf == IPUV3_COLORSPACE_YUV && outf == IPUV3_COLORSPACE_RGB) 239 params = &ic_csc_ycbcr2rgb; 240 else if (inf == IPUV3_COLORSPACE_RGB && outf == IPUV3_COLORSPACE_YUV) 241 params = &ic_csc_rgb2ycbcr; 242 else if (inf == IPUV3_COLORSPACE_RGB && outf == IPUV3_COLORSPACE_RGB) 243 params = &ic_csc_rgb2rgb; 244 else { 245 dev_err(priv->ipu->dev, "Unsupported color space conversion\n"); 246 return -EINVAL; 247 } 248 249 /* Cast to unsigned */ 250 c = (const u16 (*)[3])params->coeff; 251 a = (const u16 *)params->offset; 252 253 param = ((a[0] & 0x1f) << 27) | ((c[0][0] & 0x1ff) << 18) | 254 ((c[1][1] & 0x1ff) << 9) | (c[2][2] & 0x1ff); 255 writel(param, base++); 256 257 param = ((a[0] & 0x1fe0) >> 5) | (params->scale << 8) | 258 (params->sat << 9); 259 writel(param, base++); 260 261 param = ((a[1] & 0x1f) << 27) | ((c[0][1] & 0x1ff) << 18) | 262 ((c[1][0] & 0x1ff) << 9) | (c[2][0] & 0x1ff); 263 writel(param, base++); 264 265 param = ((a[1] & 0x1fe0) >> 5); 266 writel(param, base++); 267 268 param = ((a[2] & 0x1f) << 27) | ((c[0][2] & 0x1ff) << 18) | 269 ((c[1][2] & 0x1ff) << 9) | (c[2][1] & 0x1ff); 270 writel(param, base++); 271 272 param = ((a[2] & 0x1fe0) >> 5); 273 writel(param, base++); 274 275 return 0; 276 } 277 278 static int calc_resize_coeffs(struct ipu_ic *ic, 279 u32 in_size, u32 out_size, 280 u32 *resize_coeff, 281 u32 *downsize_coeff) 282 { 283 struct ipu_ic_priv *priv = ic->priv; 284 struct ipu_soc *ipu = priv->ipu; 285 u32 temp_size, temp_downsize; 286 287 /* 288 * Input size cannot be more than 4096, and output size cannot 289 * be more than 1024 290 */ 291 if (in_size > 4096) { 292 dev_err(ipu->dev, "Unsupported resize (in_size > 4096)\n"); 293 return -EINVAL; 294 } 295 if (out_size > 1024) { 296 dev_err(ipu->dev, "Unsupported resize (out_size > 1024)\n"); 297 return -EINVAL; 298 } 299 300 /* Cannot downsize more than 4:1 */ 301 if ((out_size << 2) < in_size) { 302 dev_err(ipu->dev, "Unsupported downsize\n"); 303 return -EINVAL; 304 } 305 306 /* Compute downsizing coefficient */ 307 temp_downsize = 0; 308 temp_size = in_size; 309 while (((temp_size > 1024) || (temp_size >= out_size * 2)) && 310 (temp_downsize < 2)) { 311 temp_size >>= 1; 312 temp_downsize++; 313 } 314 *downsize_coeff = temp_downsize; 315 316 /* 317 * compute resizing coefficient using the following equation: 318 * resize_coeff = M * (SI - 1) / (SO - 1) 319 * where M = 2^13, SI = input size, SO = output size 320 */ 321 *resize_coeff = (8192L * (temp_size - 1)) / (out_size - 1); 322 if (*resize_coeff >= 16384L) { 323 dev_err(ipu->dev, "Warning! Overflow on resize coeff.\n"); 324 *resize_coeff = 0x3FFF; 325 } 326 327 return 0; 328 } 329 330 void ipu_ic_task_enable(struct ipu_ic *ic) 331 { 332 struct ipu_ic_priv *priv = ic->priv; 333 unsigned long flags; 334 u32 ic_conf; 335 336 spin_lock_irqsave(&priv->lock, flags); 337 338 ic_conf = ipu_ic_read(ic, IC_CONF); 339 340 ic_conf |= ic->bit->ic_conf_en; 341 342 if (ic->rotation) 343 ic_conf |= ic->bit->ic_conf_rot_en; 344 345 if (ic->in_cs != ic->out_cs) 346 ic_conf |= ic->bit->ic_conf_csc1_en; 347 348 if (ic->graphics) { 349 ic_conf |= ic->bit->ic_conf_cmb_en; 350 ic_conf |= ic->bit->ic_conf_csc1_en; 351 352 if (ic->g_in_cs != ic->out_cs) 353 ic_conf |= ic->bit->ic_conf_csc2_en; 354 } 355 356 ipu_ic_write(ic, ic_conf, IC_CONF); 357 358 spin_unlock_irqrestore(&priv->lock, flags); 359 } 360 EXPORT_SYMBOL_GPL(ipu_ic_task_enable); 361 362 void ipu_ic_task_disable(struct ipu_ic *ic) 363 { 364 struct ipu_ic_priv *priv = ic->priv; 365 unsigned long flags; 366 u32 ic_conf; 367 368 spin_lock_irqsave(&priv->lock, flags); 369 370 ic_conf = ipu_ic_read(ic, IC_CONF); 371 372 ic_conf &= ~(ic->bit->ic_conf_en | 373 ic->bit->ic_conf_csc1_en | 374 ic->bit->ic_conf_rot_en); 375 if (ic->bit->ic_conf_csc2_en) 376 ic_conf &= ~ic->bit->ic_conf_csc2_en; 377 if (ic->bit->ic_conf_cmb_en) 378 ic_conf &= ~ic->bit->ic_conf_cmb_en; 379 380 ipu_ic_write(ic, ic_conf, IC_CONF); 381 382 ic->rotation = ic->graphics = false; 383 384 spin_unlock_irqrestore(&priv->lock, flags); 385 } 386 EXPORT_SYMBOL_GPL(ipu_ic_task_disable); 387 388 int ipu_ic_task_graphics_init(struct ipu_ic *ic, 389 enum ipu_color_space in_g_cs, 390 bool galpha_en, u32 galpha, 391 bool colorkey_en, u32 colorkey) 392 { 393 struct ipu_ic_priv *priv = ic->priv; 394 unsigned long flags; 395 u32 reg, ic_conf; 396 int ret = 0; 397 398 if (ic->task == IC_TASK_ENCODER) 399 return -EINVAL; 400 401 spin_lock_irqsave(&priv->lock, flags); 402 403 ic_conf = ipu_ic_read(ic, IC_CONF); 404 405 if (!(ic_conf & ic->bit->ic_conf_csc1_en)) { 406 /* need transparent CSC1 conversion */ 407 ret = init_csc(ic, IPUV3_COLORSPACE_RGB, 408 IPUV3_COLORSPACE_RGB, 0); 409 if (ret) 410 goto unlock; 411 } 412 413 ic->g_in_cs = in_g_cs; 414 415 if (ic->g_in_cs != ic->out_cs) { 416 ret = init_csc(ic, ic->g_in_cs, ic->out_cs, 1); 417 if (ret) 418 goto unlock; 419 } 420 421 if (galpha_en) { 422 ic_conf |= IC_CONF_IC_GLB_LOC_A; 423 reg = ipu_ic_read(ic, IC_CMBP_1); 424 reg &= ~(0xff << ic->bit->ic_cmb_galpha_bit); 425 reg |= (galpha << ic->bit->ic_cmb_galpha_bit); 426 ipu_ic_write(ic, reg, IC_CMBP_1); 427 } else 428 ic_conf &= ~IC_CONF_IC_GLB_LOC_A; 429 430 if (colorkey_en) { 431 ic_conf |= IC_CONF_KEY_COLOR_EN; 432 ipu_ic_write(ic, colorkey, IC_CMBP_2); 433 } else 434 ic_conf &= ~IC_CONF_KEY_COLOR_EN; 435 436 ipu_ic_write(ic, ic_conf, IC_CONF); 437 438 ic->graphics = true; 439 unlock: 440 spin_unlock_irqrestore(&priv->lock, flags); 441 return ret; 442 } 443 EXPORT_SYMBOL_GPL(ipu_ic_task_graphics_init); 444 445 int ipu_ic_task_init(struct ipu_ic *ic, 446 int in_width, int in_height, 447 int out_width, int out_height, 448 enum ipu_color_space in_cs, 449 enum ipu_color_space out_cs) 450 { 451 struct ipu_ic_priv *priv = ic->priv; 452 u32 reg, downsize_coeff, resize_coeff; 453 unsigned long flags; 454 int ret = 0; 455 456 /* Setup vertical resizing */ 457 ret = calc_resize_coeffs(ic, in_height, out_height, 458 &resize_coeff, &downsize_coeff); 459 if (ret) 460 return ret; 461 462 reg = (downsize_coeff << 30) | (resize_coeff << 16); 463 464 /* Setup horizontal resizing */ 465 ret = calc_resize_coeffs(ic, in_width, out_width, 466 &resize_coeff, &downsize_coeff); 467 if (ret) 468 return ret; 469 470 reg |= (downsize_coeff << 14) | resize_coeff; 471 472 spin_lock_irqsave(&priv->lock, flags); 473 474 ipu_ic_write(ic, reg, ic->reg->rsc); 475 476 /* Setup color space conversion */ 477 ic->in_cs = in_cs; 478 ic->out_cs = out_cs; 479 480 if (ic->in_cs != ic->out_cs) { 481 ret = init_csc(ic, ic->in_cs, ic->out_cs, 0); 482 if (ret) 483 goto unlock; 484 } 485 486 unlock: 487 spin_unlock_irqrestore(&priv->lock, flags); 488 return ret; 489 } 490 EXPORT_SYMBOL_GPL(ipu_ic_task_init); 491 492 int ipu_ic_task_idma_init(struct ipu_ic *ic, struct ipuv3_channel *channel, 493 u32 width, u32 height, int burst_size, 494 enum ipu_rotate_mode rot) 495 { 496 struct ipu_ic_priv *priv = ic->priv; 497 struct ipu_soc *ipu = priv->ipu; 498 u32 ic_idmac_1, ic_idmac_2, ic_idmac_3; 499 u32 temp_rot = bitrev8(rot) >> 5; 500 bool need_hor_flip = false; 501 unsigned long flags; 502 int ret = 0; 503 504 if ((burst_size != 8) && (burst_size != 16)) { 505 dev_err(ipu->dev, "Illegal burst length for IC\n"); 506 return -EINVAL; 507 } 508 509 width--; 510 height--; 511 512 if (temp_rot & 0x2) /* Need horizontal flip */ 513 need_hor_flip = true; 514 515 spin_lock_irqsave(&priv->lock, flags); 516 517 ic_idmac_1 = ipu_ic_read(ic, IC_IDMAC_1); 518 ic_idmac_2 = ipu_ic_read(ic, IC_IDMAC_2); 519 ic_idmac_3 = ipu_ic_read(ic, IC_IDMAC_3); 520 521 switch (channel->num) { 522 case IPUV3_CHANNEL_IC_PP_MEM: 523 if (burst_size == 16) 524 ic_idmac_1 |= IC_IDMAC_1_CB2_BURST_16; 525 else 526 ic_idmac_1 &= ~IC_IDMAC_1_CB2_BURST_16; 527 528 if (need_hor_flip) 529 ic_idmac_1 |= IC_IDMAC_1_PP_FLIP_RS; 530 else 531 ic_idmac_1 &= ~IC_IDMAC_1_PP_FLIP_RS; 532 533 ic_idmac_2 &= ~IC_IDMAC_2_PP_HEIGHT_MASK; 534 ic_idmac_2 |= height << IC_IDMAC_2_PP_HEIGHT_OFFSET; 535 536 ic_idmac_3 &= ~IC_IDMAC_3_PP_WIDTH_MASK; 537 ic_idmac_3 |= width << IC_IDMAC_3_PP_WIDTH_OFFSET; 538 break; 539 case IPUV3_CHANNEL_MEM_IC_PP: 540 if (burst_size == 16) 541 ic_idmac_1 |= IC_IDMAC_1_CB5_BURST_16; 542 else 543 ic_idmac_1 &= ~IC_IDMAC_1_CB5_BURST_16; 544 break; 545 case IPUV3_CHANNEL_MEM_ROT_PP: 546 ic_idmac_1 &= ~IC_IDMAC_1_PP_ROT_MASK; 547 ic_idmac_1 |= temp_rot << IC_IDMAC_1_PP_ROT_OFFSET; 548 break; 549 case IPUV3_CHANNEL_MEM_IC_PRP_VF: 550 if (burst_size == 16) 551 ic_idmac_1 |= IC_IDMAC_1_CB6_BURST_16; 552 else 553 ic_idmac_1 &= ~IC_IDMAC_1_CB6_BURST_16; 554 break; 555 case IPUV3_CHANNEL_IC_PRP_ENC_MEM: 556 if (burst_size == 16) 557 ic_idmac_1 |= IC_IDMAC_1_CB0_BURST_16; 558 else 559 ic_idmac_1 &= ~IC_IDMAC_1_CB0_BURST_16; 560 561 if (need_hor_flip) 562 ic_idmac_1 |= IC_IDMAC_1_PRPENC_FLIP_RS; 563 else 564 ic_idmac_1 &= ~IC_IDMAC_1_PRPENC_FLIP_RS; 565 566 ic_idmac_2 &= ~IC_IDMAC_2_PRPENC_HEIGHT_MASK; 567 ic_idmac_2 |= height << IC_IDMAC_2_PRPENC_HEIGHT_OFFSET; 568 569 ic_idmac_3 &= ~IC_IDMAC_3_PRPENC_WIDTH_MASK; 570 ic_idmac_3 |= width << IC_IDMAC_3_PRPENC_WIDTH_OFFSET; 571 break; 572 case IPUV3_CHANNEL_MEM_ROT_ENC: 573 ic_idmac_1 &= ~IC_IDMAC_1_PRPENC_ROT_MASK; 574 ic_idmac_1 |= temp_rot << IC_IDMAC_1_PRPENC_ROT_OFFSET; 575 break; 576 case IPUV3_CHANNEL_IC_PRP_VF_MEM: 577 if (burst_size == 16) 578 ic_idmac_1 |= IC_IDMAC_1_CB1_BURST_16; 579 else 580 ic_idmac_1 &= ~IC_IDMAC_1_CB1_BURST_16; 581 582 if (need_hor_flip) 583 ic_idmac_1 |= IC_IDMAC_1_PRPVF_FLIP_RS; 584 else 585 ic_idmac_1 &= ~IC_IDMAC_1_PRPVF_FLIP_RS; 586 587 ic_idmac_2 &= ~IC_IDMAC_2_PRPVF_HEIGHT_MASK; 588 ic_idmac_2 |= height << IC_IDMAC_2_PRPVF_HEIGHT_OFFSET; 589 590 ic_idmac_3 &= ~IC_IDMAC_3_PRPVF_WIDTH_MASK; 591 ic_idmac_3 |= width << IC_IDMAC_3_PRPVF_WIDTH_OFFSET; 592 break; 593 case IPUV3_CHANNEL_MEM_ROT_VF: 594 ic_idmac_1 &= ~IC_IDMAC_1_PRPVF_ROT_MASK; 595 ic_idmac_1 |= temp_rot << IC_IDMAC_1_PRPVF_ROT_OFFSET; 596 break; 597 case IPUV3_CHANNEL_G_MEM_IC_PRP_VF: 598 if (burst_size == 16) 599 ic_idmac_1 |= IC_IDMAC_1_CB3_BURST_16; 600 else 601 ic_idmac_1 &= ~IC_IDMAC_1_CB3_BURST_16; 602 break; 603 case IPUV3_CHANNEL_G_MEM_IC_PP: 604 if (burst_size == 16) 605 ic_idmac_1 |= IC_IDMAC_1_CB4_BURST_16; 606 else 607 ic_idmac_1 &= ~IC_IDMAC_1_CB4_BURST_16; 608 break; 609 case IPUV3_CHANNEL_VDI_MEM_IC_VF: 610 if (burst_size == 16) 611 ic_idmac_1 |= IC_IDMAC_1_CB7_BURST_16; 612 else 613 ic_idmac_1 &= ~IC_IDMAC_1_CB7_BURST_16; 614 break; 615 default: 616 goto unlock; 617 } 618 619 ipu_ic_write(ic, ic_idmac_1, IC_IDMAC_1); 620 ipu_ic_write(ic, ic_idmac_2, IC_IDMAC_2); 621 ipu_ic_write(ic, ic_idmac_3, IC_IDMAC_3); 622 623 if (rot >= IPU_ROTATE_90_RIGHT) 624 ic->rotation = true; 625 626 unlock: 627 spin_unlock_irqrestore(&priv->lock, flags); 628 return ret; 629 } 630 EXPORT_SYMBOL_GPL(ipu_ic_task_idma_init); 631 632 int ipu_ic_enable(struct ipu_ic *ic) 633 { 634 struct ipu_ic_priv *priv = ic->priv; 635 unsigned long flags; 636 u32 module = IPU_CONF_IC_EN; 637 638 spin_lock_irqsave(&priv->lock, flags); 639 640 if (ic->rotation) 641 module |= IPU_CONF_ROT_EN; 642 643 if (!priv->use_count) 644 ipu_module_enable(priv->ipu, module); 645 646 priv->use_count++; 647 648 spin_unlock_irqrestore(&priv->lock, flags); 649 650 return 0; 651 } 652 EXPORT_SYMBOL_GPL(ipu_ic_enable); 653 654 int ipu_ic_disable(struct ipu_ic *ic) 655 { 656 struct ipu_ic_priv *priv = ic->priv; 657 unsigned long flags; 658 u32 module = IPU_CONF_IC_EN | IPU_CONF_ROT_EN; 659 660 spin_lock_irqsave(&priv->lock, flags); 661 662 priv->use_count--; 663 664 if (!priv->use_count) 665 ipu_module_disable(priv->ipu, module); 666 667 if (priv->use_count < 0) 668 priv->use_count = 0; 669 670 spin_unlock_irqrestore(&priv->lock, flags); 671 672 return 0; 673 } 674 EXPORT_SYMBOL_GPL(ipu_ic_disable); 675 676 struct ipu_ic *ipu_ic_get(struct ipu_soc *ipu, enum ipu_ic_task task) 677 { 678 struct ipu_ic_priv *priv = ipu->ic_priv; 679 unsigned long flags; 680 struct ipu_ic *ic, *ret; 681 682 if (task >= IC_NUM_TASKS) 683 return ERR_PTR(-EINVAL); 684 685 ic = &priv->task[task]; 686 687 spin_lock_irqsave(&priv->lock, flags); 688 689 if (ic->in_use) { 690 ret = ERR_PTR(-EBUSY); 691 goto unlock; 692 } 693 694 ic->in_use = true; 695 ret = ic; 696 697 unlock: 698 spin_unlock_irqrestore(&priv->lock, flags); 699 return ret; 700 } 701 EXPORT_SYMBOL_GPL(ipu_ic_get); 702 703 void ipu_ic_put(struct ipu_ic *ic) 704 { 705 struct ipu_ic_priv *priv = ic->priv; 706 unsigned long flags; 707 708 spin_lock_irqsave(&priv->lock, flags); 709 ic->in_use = false; 710 spin_unlock_irqrestore(&priv->lock, flags); 711 } 712 EXPORT_SYMBOL_GPL(ipu_ic_put); 713 714 int ipu_ic_init(struct ipu_soc *ipu, struct device *dev, 715 unsigned long base, unsigned long tpmem_base) 716 { 717 struct ipu_ic_priv *priv; 718 int i; 719 720 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 721 if (!priv) 722 return -ENOMEM; 723 724 ipu->ic_priv = priv; 725 726 spin_lock_init(&priv->lock); 727 priv->base = devm_ioremap(dev, base, PAGE_SIZE); 728 if (!priv->base) 729 return -ENOMEM; 730 priv->tpmem_base = devm_ioremap(dev, tpmem_base, SZ_64K); 731 if (!priv->tpmem_base) 732 return -ENOMEM; 733 734 dev_dbg(dev, "IC base: 0x%08lx remapped to %p\n", base, priv->base); 735 736 priv->ipu = ipu; 737 738 for (i = 0; i < IC_NUM_TASKS; i++) { 739 priv->task[i].task = i; 740 priv->task[i].priv = priv; 741 priv->task[i].reg = &ic_task_reg[i]; 742 priv->task[i].bit = &ic_task_bit[i]; 743 } 744 745 return 0; 746 } 747 748 void ipu_ic_exit(struct ipu_soc *ipu) 749 { 750 } 751 752 void ipu_ic_dump(struct ipu_ic *ic) 753 { 754 struct ipu_ic_priv *priv = ic->priv; 755 struct ipu_soc *ipu = priv->ipu; 756 757 dev_dbg(ipu->dev, "IC_CONF = \t0x%08X\n", 758 ipu_ic_read(ic, IC_CONF)); 759 dev_dbg(ipu->dev, "IC_PRP_ENC_RSC = \t0x%08X\n", 760 ipu_ic_read(ic, IC_PRP_ENC_RSC)); 761 dev_dbg(ipu->dev, "IC_PRP_VF_RSC = \t0x%08X\n", 762 ipu_ic_read(ic, IC_PRP_VF_RSC)); 763 dev_dbg(ipu->dev, "IC_PP_RSC = \t0x%08X\n", 764 ipu_ic_read(ic, IC_PP_RSC)); 765 dev_dbg(ipu->dev, "IC_CMBP_1 = \t0x%08X\n", 766 ipu_ic_read(ic, IC_CMBP_1)); 767 dev_dbg(ipu->dev, "IC_CMBP_2 = \t0x%08X\n", 768 ipu_ic_read(ic, IC_CMBP_2)); 769 dev_dbg(ipu->dev, "IC_IDMAC_1 = \t0x%08X\n", 770 ipu_ic_read(ic, IC_IDMAC_1)); 771 dev_dbg(ipu->dev, "IC_IDMAC_2 = \t0x%08X\n", 772 ipu_ic_read(ic, IC_IDMAC_2)); 773 dev_dbg(ipu->dev, "IC_IDMAC_3 = \t0x%08X\n", 774 ipu_ic_read(ic, IC_IDMAC_3)); 775 dev_dbg(ipu->dev, "IC_IDMAC_4 = \t0x%08X\n", 776 ipu_ic_read(ic, IC_IDMAC_4)); 777 } 778 EXPORT_SYMBOL_GPL(ipu_ic_dump); 779