1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * drivers/media/i2c/ccs/ccs-core.c 4 * 5 * Generic driver for MIPI CCS/SMIA/SMIA++ compliant camera sensors 6 * 7 * Copyright (C) 2020 Intel Corporation 8 * Copyright (C) 2010--2012 Nokia Corporation 9 * Contact: Sakari Ailus <sakari.ailus@linux.intel.com> 10 * 11 * Based on smiapp driver by Vimarsh Zutshi 12 * Based on jt8ev1.c by Vimarsh Zutshi 13 * Based on smia-sensor.c by Tuukka Toivonen <tuukkat76@gmail.com> 14 */ 15 16#include <linux/clk.h> 17#include <linux/delay.h> 18#include <linux/device.h> 19#include <linux/firmware.h> 20#include <linux/gpio/consumer.h> 21#include <linux/module.h> 22#include <linux/pm_runtime.h> 23#include <linux/property.h> 24#include <linux/regulator/consumer.h> 25#include <linux/slab.h> 26#include <linux/smiapp.h> 27#include <linux/v4l2-mediabus.h> 28#include <media/v4l2-cci.h> 29#include <media/v4l2-device.h> 30#include <media/v4l2-fwnode.h> 31#include <uapi/linux/ccs.h> 32 33#include "ccs.h" 34 35#define CCS_ALIGN_DIM(dim, flags) \ 36 ((flags) & V4L2_SEL_FLAG_GE \ 37 ? ALIGN((dim), 2) \ 38 : (dim) & ~1) 39 40static struct ccs_limit_offset { 41 u16 lim; 42 u16 info; 43} ccs_limit_offsets[CCS_L_LAST + 1]; 44 45/* 46 * ccs_module_idents - supported camera modules 47 */ 48static const struct ccs_module_ident ccs_module_idents[] = { 49 CCS_IDENT_L(0x01, 0x022b, -1, "vs6555"), 50 CCS_IDENT_L(0x01, 0x022e, -1, "vw6558"), 51 CCS_IDENT_L(0x07, 0x7698, -1, "ovm7698"), 52 CCS_IDENT_L(0x0b, 0x4242, -1, "smiapp-003"), 53 CCS_IDENT_L(0x0c, 0x208a, -1, "tcm8330md"), 54 CCS_IDENT_LQ(0x0c, 0x2134, -1, "tcm8500md", &smiapp_tcm8500md_quirk), 55 CCS_IDENT_L(0x0c, 0x213e, -1, "et8en2"), 56 CCS_IDENT_L(0x0c, 0x2184, -1, "tcm8580md"), 57 CCS_IDENT_LQ(0x0c, 0x560f, -1, "jt8ew9", &smiapp_jt8ew9_quirk), 58 CCS_IDENT_LQ(0x10, 0x4141, -1, "jt8ev1", &smiapp_jt8ev1_quirk), 59 CCS_IDENT_LQ(0x10, 0x4241, -1, "imx125es", &smiapp_imx125es_quirk), 60}; 61 62#define CCS_DEVICE_FLAG_IS_SMIA BIT(0) 63 64struct ccs_device { 65 unsigned char flags; 66}; 67 68static const char * const ccs_regulators[] = { "vcore", "vio", "vana" }; 69 70/* 71 * 72 * Dynamic Capability Identification 73 * 74 */ 75 76static void ccs_assign_limit(void *ptr, unsigned int width, u32 val) 77{ 78 switch (width) { 79 case sizeof(u8): 80 *(u8 *)ptr = val; 81 break; 82 case sizeof(u16): 83 *(u16 *)ptr = val; 84 break; 85 case sizeof(u32): 86 *(u32 *)ptr = val; 87 break; 88 } 89} 90 91static int ccs_limit_ptr(struct ccs_sensor *sensor, unsigned int limit, 92 unsigned int offset, void **__ptr) 93{ 94 const struct ccs_limit *linfo; 95 96 if (WARN_ON(limit >= CCS_L_LAST)) 97 return -EINVAL; 98 99 linfo = &ccs_limits[ccs_limit_offsets[limit].info]; 100 101 if (WARN_ON(!sensor->ccs_limits) || 102 WARN_ON(offset + CCI_REG_WIDTH_BYTES(linfo->reg) > 103 ccs_limit_offsets[limit + 1].lim)) 104 return -EINVAL; 105 106 *__ptr = sensor->ccs_limits + ccs_limit_offsets[limit].lim + offset; 107 108 return 0; 109} 110 111void ccs_replace_limit(struct ccs_sensor *sensor, 112 unsigned int limit, unsigned int offset, u32 val) 113{ 114 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 115 const struct ccs_limit *linfo; 116 void *ptr; 117 int ret; 118 119 ret = ccs_limit_ptr(sensor, limit, offset, &ptr); 120 if (ret) 121 return; 122 123 linfo = &ccs_limits[ccs_limit_offsets[limit].info]; 124 125 dev_dbg(&client->dev, "quirk: 0x%8.8x \"%s\" %u = %u, 0x%x\n", 126 linfo->reg, linfo->name, offset, val, val); 127 128 ccs_assign_limit(ptr, CCI_REG_WIDTH_BYTES(linfo->reg), val); 129} 130 131u32 ccs_get_limit(struct ccs_sensor *sensor, unsigned int limit, 132 unsigned int offset) 133{ 134 void *ptr; 135 u32 val; 136 int ret; 137 138 ret = ccs_limit_ptr(sensor, limit, offset, &ptr); 139 if (ret) 140 return 0; 141 142 switch (CCI_REG_WIDTH_BYTES(ccs_limits[ccs_limit_offsets[limit].info].reg)) { 143 case sizeof(u8): 144 val = *(u8 *)ptr; 145 break; 146 case sizeof(u16): 147 val = *(u16 *)ptr; 148 break; 149 case sizeof(u32): 150 val = *(u32 *)ptr; 151 break; 152 default: 153 WARN_ON(1); 154 return 0; 155 } 156 157 return ccs_reg_conv(sensor, ccs_limits[limit].reg, val); 158} 159 160static int ccs_read_all_limits(struct ccs_sensor *sensor) 161{ 162 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 163 void *ptr, *alloc, *end; 164 unsigned int i, l; 165 int ret; 166 167 kfree(sensor->ccs_limits); 168 sensor->ccs_limits = NULL; 169 170 alloc = kzalloc(ccs_limit_offsets[CCS_L_LAST].lim, GFP_KERNEL); 171 if (!alloc) 172 return -ENOMEM; 173 174 end = alloc + ccs_limit_offsets[CCS_L_LAST].lim; 175 176 sensor->ccs_limits = alloc; 177 178 for (i = 0, l = 0, ptr = alloc; ccs_limits[i].size; i++) { 179 u32 reg = ccs_limits[i].reg; 180 unsigned int width = CCI_REG_WIDTH_BYTES(reg); 181 unsigned int j; 182 183 if (l == CCS_L_LAST) { 184 dev_err(&client->dev, 185 "internal error --- end of limit array\n"); 186 ret = -EINVAL; 187 goto out_err; 188 } 189 190 for (j = 0; j < ccs_limits[i].size / width; 191 j++, reg += width, ptr += width) { 192 char str[16] = ""; 193 u32 val; 194 195 ret = ccs_read_addr_noconv(sensor, reg, &val); 196 if (ret) 197 goto out_err; 198 199 if (ptr + width > end) { 200 dev_err(&client->dev, 201 "internal error --- no room for regs\n"); 202 ret = -EINVAL; 203 goto out_err; 204 } 205 206 if (!val && j) 207 break; 208 209 ccs_assign_limit(ptr, width, val); 210 211#ifdef CONFIG_DYNAMIC_DEBUG 212 if (reg & (CCS_FL_FLOAT_IREAL | CCS_FL_IREAL)) 213 snprintf(str, sizeof(str), ", %u", 214 ccs_reg_conv(sensor, reg, val)); 215#endif 216 217 dev_dbg(&client->dev, 218 "0x%8.8x \"%s\" = %u, 0x%x%s\n", 219 reg, ccs_limits[i].name, val, val, str); 220 } 221 222 if (ccs_limits[i].flags & CCS_L_FL_SAME_REG) 223 continue; 224 225 l++; 226 ptr = alloc + ccs_limit_offsets[l].lim; 227 } 228 229 if (l != CCS_L_LAST) { 230 dev_err(&client->dev, 231 "internal error --- insufficient limits\n"); 232 ret = -EINVAL; 233 goto out_err; 234 } 235 236 if (CCS_LIM(sensor, SCALER_N_MIN) < 16) 237 ccs_replace_limit(sensor, CCS_L_SCALER_N_MIN, 0, 16); 238 239 return 0; 240 241out_err: 242 sensor->ccs_limits = NULL; 243 kfree(alloc); 244 245 return ret; 246} 247 248static int ccs_read_frame_fmt(struct ccs_sensor *sensor) 249{ 250 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 251 u8 fmt_model_type, fmt_model_subtype, ncol_desc, nrow_desc; 252 unsigned int i; 253 int pixel_count = 0; 254 int line_count = 0; 255 256 fmt_model_type = CCS_LIM(sensor, FRAME_FORMAT_MODEL_TYPE); 257 fmt_model_subtype = CCS_LIM(sensor, FRAME_FORMAT_MODEL_SUBTYPE); 258 259 ncol_desc = (fmt_model_subtype 260 & CCS_FRAME_FORMAT_MODEL_SUBTYPE_COLUMNS_MASK) 261 >> CCS_FRAME_FORMAT_MODEL_SUBTYPE_COLUMNS_SHIFT; 262 nrow_desc = fmt_model_subtype 263 & CCS_FRAME_FORMAT_MODEL_SUBTYPE_ROWS_MASK; 264 265 dev_dbg(&client->dev, "format_model_type %s\n", 266 fmt_model_type == CCS_FRAME_FORMAT_MODEL_TYPE_2_BYTE 267 ? "2 byte" : 268 fmt_model_type == CCS_FRAME_FORMAT_MODEL_TYPE_4_BYTE 269 ? "4 byte" : "is simply bad"); 270 271 dev_dbg(&client->dev, "%u column and %u row descriptors\n", 272 ncol_desc, nrow_desc); 273 274 for (i = 0; i < ncol_desc + nrow_desc; i++) { 275 u32 desc; 276 u32 pixelcode; 277 u32 pixels; 278 char *which; 279 char *what; 280 281 if (fmt_model_type == CCS_FRAME_FORMAT_MODEL_TYPE_2_BYTE) { 282 desc = CCS_LIM_AT(sensor, FRAME_FORMAT_DESCRIPTOR, i); 283 284 pixelcode = 285 (desc 286 & CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_MASK) 287 >> CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_SHIFT; 288 pixels = desc & CCS_FRAME_FORMAT_DESCRIPTOR_PIXELS_MASK; 289 } else if (fmt_model_type 290 == CCS_FRAME_FORMAT_MODEL_TYPE_4_BYTE) { 291 desc = CCS_LIM_AT(sensor, FRAME_FORMAT_DESCRIPTOR_4, i); 292 293 pixelcode = 294 (desc 295 & CCS_FRAME_FORMAT_DESCRIPTOR_4_PCODE_MASK) 296 >> CCS_FRAME_FORMAT_DESCRIPTOR_4_PCODE_SHIFT; 297 pixels = desc & 298 CCS_FRAME_FORMAT_DESCRIPTOR_4_PIXELS_MASK; 299 } else { 300 dev_dbg(&client->dev, 301 "invalid frame format model type %u\n", 302 fmt_model_type); 303 return -EINVAL; 304 } 305 306 if (i < ncol_desc) 307 which = "columns"; 308 else 309 which = "rows"; 310 311 switch (pixelcode) { 312 case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_EMBEDDED: 313 what = "embedded"; 314 break; 315 case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_DUMMY_PIXEL: 316 what = "dummy"; 317 break; 318 case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_BLACK_PIXEL: 319 what = "black"; 320 break; 321 case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_DARK_PIXEL: 322 what = "dark"; 323 break; 324 case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_VISIBLE_PIXEL: 325 what = "visible"; 326 break; 327 default: 328 what = "invalid"; 329 break; 330 } 331 332 dev_dbg(&client->dev, 333 "%s pixels: %u %s (pixelcode %u)\n", 334 what, pixels, which, pixelcode); 335 336 if (i < ncol_desc) { 337 if (pixelcode == 338 CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_VISIBLE_PIXEL) 339 sensor->visible_pixel_start = pixel_count; 340 pixel_count += pixels; 341 continue; 342 } 343 344 /* Handle row descriptors */ 345 switch (pixelcode) { 346 case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_EMBEDDED: 347 if (sensor->embedded_end) 348 break; 349 sensor->embedded_start = line_count; 350 sensor->embedded_end = line_count + pixels; 351 break; 352 case CCS_FRAME_FORMAT_DESCRIPTOR_PCODE_VISIBLE_PIXEL: 353 sensor->image_start = line_count; 354 break; 355 } 356 line_count += pixels; 357 } 358 359 if (sensor->embedded_end > sensor->image_start) { 360 dev_dbg(&client->dev, 361 "adjusting image start line to %u (was %u)\n", 362 sensor->embedded_end, sensor->image_start); 363 sensor->image_start = sensor->embedded_end; 364 } 365 366 dev_dbg(&client->dev, "embedded data from lines %u to %u\n", 367 sensor->embedded_start, sensor->embedded_end); 368 dev_dbg(&client->dev, "image data starts at line %u\n", 369 sensor->image_start); 370 371 return 0; 372} 373 374static int ccs_pll_configure(struct ccs_sensor *sensor) 375{ 376 struct ccs_pll *pll = &sensor->pll; 377 int rval; 378 379 rval = ccs_write(sensor, VT_PIX_CLK_DIV, pll->vt_bk.pix_clk_div); 380 if (rval < 0) 381 return rval; 382 383 rval = ccs_write(sensor, VT_SYS_CLK_DIV, pll->vt_bk.sys_clk_div); 384 if (rval < 0) 385 return rval; 386 387 rval = ccs_write(sensor, PRE_PLL_CLK_DIV, pll->vt_fr.pre_pll_clk_div); 388 if (rval < 0) 389 return rval; 390 391 rval = ccs_write(sensor, PLL_MULTIPLIER, pll->vt_fr.pll_multiplier); 392 if (rval < 0) 393 return rval; 394 395 if (!(CCS_LIM(sensor, PHY_CTRL_CAPABILITY) & 396 CCS_PHY_CTRL_CAPABILITY_AUTO_PHY_CTL)) { 397 /* Lane op clock ratio does not apply here. */ 398 rval = ccs_write(sensor, REQUESTED_LINK_RATE, 399 DIV_ROUND_UP(pll->op_bk.sys_clk_freq_hz, 400 1000000 / 256 / 256) * 401 (pll->flags & CCS_PLL_FLAG_LANE_SPEED_MODEL ? 402 sensor->pll.csi2.lanes : 1) << 403 (pll->flags & CCS_PLL_FLAG_OP_SYS_DDR ? 404 1 : 0)); 405 if (rval < 0) 406 return rval; 407 } 408 409 if (sensor->pll.flags & CCS_PLL_FLAG_NO_OP_CLOCKS) 410 return 0; 411 412 rval = ccs_write(sensor, OP_PIX_CLK_DIV, pll->op_bk.pix_clk_div); 413 if (rval < 0) 414 return rval; 415 416 rval = ccs_write(sensor, OP_SYS_CLK_DIV, pll->op_bk.sys_clk_div); 417 if (rval < 0) 418 return rval; 419 420 if (!(pll->flags & CCS_PLL_FLAG_DUAL_PLL)) 421 return 0; 422 423 rval = ccs_write(sensor, PLL_MODE, CCS_PLL_MODE_DUAL); 424 if (rval < 0) 425 return rval; 426 427 rval = ccs_write(sensor, OP_PRE_PLL_CLK_DIV, 428 pll->op_fr.pre_pll_clk_div); 429 if (rval < 0) 430 return rval; 431 432 return ccs_write(sensor, OP_PLL_MULTIPLIER, pll->op_fr.pll_multiplier); 433} 434 435static int ccs_pll_try(struct ccs_sensor *sensor, struct ccs_pll *pll) 436{ 437 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 438 struct ccs_pll_limits lim = { 439 .vt_fr = { 440 .min_pre_pll_clk_div = CCS_LIM(sensor, MIN_PRE_PLL_CLK_DIV), 441 .max_pre_pll_clk_div = CCS_LIM(sensor, MAX_PRE_PLL_CLK_DIV), 442 .min_pll_ip_clk_freq_hz = CCS_LIM(sensor, MIN_PLL_IP_CLK_FREQ_MHZ), 443 .max_pll_ip_clk_freq_hz = CCS_LIM(sensor, MAX_PLL_IP_CLK_FREQ_MHZ), 444 .min_pll_multiplier = CCS_LIM(sensor, MIN_PLL_MULTIPLIER), 445 .max_pll_multiplier = CCS_LIM(sensor, MAX_PLL_MULTIPLIER), 446 .min_pll_op_clk_freq_hz = CCS_LIM(sensor, MIN_PLL_OP_CLK_FREQ_MHZ), 447 .max_pll_op_clk_freq_hz = CCS_LIM(sensor, MAX_PLL_OP_CLK_FREQ_MHZ), 448 }, 449 .op_fr = { 450 .min_pre_pll_clk_div = CCS_LIM(sensor, MIN_OP_PRE_PLL_CLK_DIV), 451 .max_pre_pll_clk_div = CCS_LIM(sensor, MAX_OP_PRE_PLL_CLK_DIV), 452 .min_pll_ip_clk_freq_hz = CCS_LIM(sensor, MIN_OP_PLL_IP_CLK_FREQ_MHZ), 453 .max_pll_ip_clk_freq_hz = CCS_LIM(sensor, MAX_OP_PLL_IP_CLK_FREQ_MHZ), 454 .min_pll_multiplier = CCS_LIM(sensor, MIN_OP_PLL_MULTIPLIER), 455 .max_pll_multiplier = CCS_LIM(sensor, MAX_OP_PLL_MULTIPLIER), 456 .min_pll_op_clk_freq_hz = CCS_LIM(sensor, MIN_OP_PLL_OP_CLK_FREQ_MHZ), 457 .max_pll_op_clk_freq_hz = CCS_LIM(sensor, MAX_OP_PLL_OP_CLK_FREQ_MHZ), 458 }, 459 .op_bk = { 460 .min_sys_clk_div = CCS_LIM(sensor, MIN_OP_SYS_CLK_DIV), 461 .max_sys_clk_div = CCS_LIM(sensor, MAX_OP_SYS_CLK_DIV), 462 .min_pix_clk_div = CCS_LIM(sensor, MIN_OP_PIX_CLK_DIV), 463 .max_pix_clk_div = CCS_LIM(sensor, MAX_OP_PIX_CLK_DIV), 464 .min_sys_clk_freq_hz = CCS_LIM(sensor, MIN_OP_SYS_CLK_FREQ_MHZ), 465 .max_sys_clk_freq_hz = CCS_LIM(sensor, MAX_OP_SYS_CLK_FREQ_MHZ), 466 .min_pix_clk_freq_hz = CCS_LIM(sensor, MIN_OP_PIX_CLK_FREQ_MHZ), 467 .max_pix_clk_freq_hz = CCS_LIM(sensor, MAX_OP_PIX_CLK_FREQ_MHZ), 468 }, 469 .vt_bk = { 470 .min_sys_clk_div = CCS_LIM(sensor, MIN_VT_SYS_CLK_DIV), 471 .max_sys_clk_div = CCS_LIM(sensor, MAX_VT_SYS_CLK_DIV), 472 .min_pix_clk_div = CCS_LIM(sensor, MIN_VT_PIX_CLK_DIV), 473 .max_pix_clk_div = CCS_LIM(sensor, MAX_VT_PIX_CLK_DIV), 474 .min_sys_clk_freq_hz = CCS_LIM(sensor, MIN_VT_SYS_CLK_FREQ_MHZ), 475 .max_sys_clk_freq_hz = CCS_LIM(sensor, MAX_VT_SYS_CLK_FREQ_MHZ), 476 .min_pix_clk_freq_hz = CCS_LIM(sensor, MIN_VT_PIX_CLK_FREQ_MHZ), 477 .max_pix_clk_freq_hz = CCS_LIM(sensor, MAX_VT_PIX_CLK_FREQ_MHZ), 478 }, 479 .min_line_length_pck_bin = CCS_LIM(sensor, MIN_LINE_LENGTH_PCK_BIN), 480 .min_line_length_pck = CCS_LIM(sensor, MIN_LINE_LENGTH_PCK), 481 }; 482 483 return ccs_pll_calculate(&client->dev, &lim, pll); 484} 485 486static int ccs_pll_update(struct ccs_sensor *sensor) 487{ 488 struct ccs_pll *pll = &sensor->pll; 489 int rval; 490 491 pll->binning_horizontal = sensor->binning_horizontal; 492 pll->binning_vertical = sensor->binning_vertical; 493 pll->link_freq = 494 sensor->link_freq->qmenu_int[sensor->link_freq->val]; 495 pll->scale_m = sensor->scale_m; 496 pll->bits_per_pixel = sensor->csi_format->compressed; 497 498 rval = ccs_pll_try(sensor, pll); 499 if (rval < 0) 500 return rval; 501 502 __v4l2_ctrl_s_ctrl_int64(sensor->pixel_rate_parray, 503 pll->pixel_rate_pixel_array); 504 __v4l2_ctrl_s_ctrl_int64(sensor->pixel_rate_csi, pll->pixel_rate_csi); 505 506 return 0; 507} 508 509 510/* 511 * 512 * V4L2 Controls handling 513 * 514 */ 515 516static void __ccs_update_exposure_limits(struct ccs_sensor *sensor) 517{ 518 struct v4l2_ctrl *ctrl = sensor->exposure; 519 int max; 520 521 max = sensor->pa_src.height + sensor->vblank->val - 522 CCS_LIM(sensor, COARSE_INTEGRATION_TIME_MAX_MARGIN); 523 524 __v4l2_ctrl_modify_range(ctrl, ctrl->minimum, max, ctrl->step, max); 525} 526 527/* 528 * Order matters. 529 * 530 * 1. Bits-per-pixel, descending. 531 * 2. Bits-per-pixel compressed, descending. 532 * 3. Pixel order, same as in pixel_order_str. Formats for all four pixel 533 * orders must be defined. 534 */ 535static const struct ccs_csi_data_format ccs_csi_data_formats[] = { 536 { MEDIA_BUS_FMT_SGRBG16_1X16, 16, 16, CCS_PIXEL_ORDER_GRBG, }, 537 { MEDIA_BUS_FMT_SRGGB16_1X16, 16, 16, CCS_PIXEL_ORDER_RGGB, }, 538 { MEDIA_BUS_FMT_SBGGR16_1X16, 16, 16, CCS_PIXEL_ORDER_BGGR, }, 539 { MEDIA_BUS_FMT_SGBRG16_1X16, 16, 16, CCS_PIXEL_ORDER_GBRG, }, 540 { MEDIA_BUS_FMT_SGRBG14_1X14, 14, 14, CCS_PIXEL_ORDER_GRBG, }, 541 { MEDIA_BUS_FMT_SRGGB14_1X14, 14, 14, CCS_PIXEL_ORDER_RGGB, }, 542 { MEDIA_BUS_FMT_SBGGR14_1X14, 14, 14, CCS_PIXEL_ORDER_BGGR, }, 543 { MEDIA_BUS_FMT_SGBRG14_1X14, 14, 14, CCS_PIXEL_ORDER_GBRG, }, 544 { MEDIA_BUS_FMT_SGRBG12_1X12, 12, 12, CCS_PIXEL_ORDER_GRBG, }, 545 { MEDIA_BUS_FMT_SRGGB12_1X12, 12, 12, CCS_PIXEL_ORDER_RGGB, }, 546 { MEDIA_BUS_FMT_SBGGR12_1X12, 12, 12, CCS_PIXEL_ORDER_BGGR, }, 547 { MEDIA_BUS_FMT_SGBRG12_1X12, 12, 12, CCS_PIXEL_ORDER_GBRG, }, 548 { MEDIA_BUS_FMT_SGRBG10_1X10, 10, 10, CCS_PIXEL_ORDER_GRBG, }, 549 { MEDIA_BUS_FMT_SRGGB10_1X10, 10, 10, CCS_PIXEL_ORDER_RGGB, }, 550 { MEDIA_BUS_FMT_SBGGR10_1X10, 10, 10, CCS_PIXEL_ORDER_BGGR, }, 551 { MEDIA_BUS_FMT_SGBRG10_1X10, 10, 10, CCS_PIXEL_ORDER_GBRG, }, 552 { MEDIA_BUS_FMT_SGRBG10_DPCM8_1X8, 10, 8, CCS_PIXEL_ORDER_GRBG, }, 553 { MEDIA_BUS_FMT_SRGGB10_DPCM8_1X8, 10, 8, CCS_PIXEL_ORDER_RGGB, }, 554 { MEDIA_BUS_FMT_SBGGR10_DPCM8_1X8, 10, 8, CCS_PIXEL_ORDER_BGGR, }, 555 { MEDIA_BUS_FMT_SGBRG10_DPCM8_1X8, 10, 8, CCS_PIXEL_ORDER_GBRG, }, 556 { MEDIA_BUS_FMT_SGRBG8_1X8, 8, 8, CCS_PIXEL_ORDER_GRBG, }, 557 { MEDIA_BUS_FMT_SRGGB8_1X8, 8, 8, CCS_PIXEL_ORDER_RGGB, }, 558 { MEDIA_BUS_FMT_SBGGR8_1X8, 8, 8, CCS_PIXEL_ORDER_BGGR, }, 559 { MEDIA_BUS_FMT_SGBRG8_1X8, 8, 8, CCS_PIXEL_ORDER_GBRG, }, 560}; 561 562static const char *pixel_order_str[] = { "GRBG", "RGGB", "BGGR", "GBRG" }; 563 564#define to_csi_format_idx(fmt) (((unsigned long)(fmt) \ 565 - (unsigned long)ccs_csi_data_formats) \ 566 / sizeof(*ccs_csi_data_formats)) 567 568static u32 ccs_pixel_order(struct ccs_sensor *sensor) 569{ 570 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 571 int flip = 0; 572 573 if (sensor->hflip) { 574 if (sensor->hflip->val) 575 flip |= CCS_IMAGE_ORIENTATION_HORIZONTAL_MIRROR; 576 577 if (sensor->vflip->val) 578 flip |= CCS_IMAGE_ORIENTATION_VERTICAL_FLIP; 579 } 580 581 dev_dbg(&client->dev, "flip %u\n", flip); 582 return sensor->default_pixel_order ^ flip; 583} 584 585static void ccs_update_mbus_formats(struct ccs_sensor *sensor) 586{ 587 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 588 unsigned int csi_format_idx = 589 to_csi_format_idx(sensor->csi_format) & ~3; 590 unsigned int internal_csi_format_idx = 591 to_csi_format_idx(sensor->internal_csi_format) & ~3; 592 unsigned int pixel_order = ccs_pixel_order(sensor); 593 594 if (WARN_ON_ONCE(max(internal_csi_format_idx, csi_format_idx) + 595 pixel_order >= ARRAY_SIZE(ccs_csi_data_formats))) 596 return; 597 598 sensor->mbus_frame_fmts = 599 sensor->default_mbus_frame_fmts << pixel_order; 600 sensor->csi_format = 601 &ccs_csi_data_formats[csi_format_idx + pixel_order]; 602 sensor->internal_csi_format = 603 &ccs_csi_data_formats[internal_csi_format_idx 604 + pixel_order]; 605 606 dev_dbg(&client->dev, "new pixel order %s\n", 607 pixel_order_str[pixel_order]); 608} 609 610static const char * const ccs_test_patterns[] = { 611 "Disabled", 612 "Solid Colour", 613 "Eight Vertical Colour Bars", 614 "Colour Bars With Fade to Grey", 615 "Pseudorandom Sequence (PN9)", 616}; 617 618static int ccs_set_ctrl(struct v4l2_ctrl *ctrl) 619{ 620 struct ccs_sensor *sensor = 621 container_of(ctrl->handler, struct ccs_subdev, ctrl_handler) 622 ->sensor; 623 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 624 int pm_status; 625 u32 orient = 0; 626 unsigned int i; 627 int exposure; 628 int rval; 629 630 switch (ctrl->id) { 631 case V4L2_CID_HFLIP: 632 case V4L2_CID_VFLIP: 633 if (sensor->streaming) 634 return -EBUSY; 635 636 if (sensor->hflip->val) 637 orient |= CCS_IMAGE_ORIENTATION_HORIZONTAL_MIRROR; 638 639 if (sensor->vflip->val) 640 orient |= CCS_IMAGE_ORIENTATION_VERTICAL_FLIP; 641 642 ccs_update_mbus_formats(sensor); 643 644 break; 645 case V4L2_CID_VBLANK: 646 exposure = sensor->exposure->val; 647 648 __ccs_update_exposure_limits(sensor); 649 650 if (exposure > sensor->exposure->maximum) { 651 sensor->exposure->val = sensor->exposure->maximum; 652 rval = ccs_set_ctrl(sensor->exposure); 653 if (rval < 0) 654 return rval; 655 } 656 657 break; 658 case V4L2_CID_LINK_FREQ: 659 if (sensor->streaming) 660 return -EBUSY; 661 662 rval = ccs_pll_update(sensor); 663 if (rval) 664 return rval; 665 666 return 0; 667 case V4L2_CID_TEST_PATTERN: 668 for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++) 669 v4l2_ctrl_activate( 670 sensor->test_data[i], 671 ctrl->val == 672 V4L2_SMIAPP_TEST_PATTERN_MODE_SOLID_COLOUR); 673 674 break; 675 } 676 677 pm_status = pm_runtime_get_if_active(&client->dev); 678 if (!pm_status) 679 return 0; 680 681 switch (ctrl->id) { 682 case V4L2_CID_ANALOGUE_GAIN: 683 rval = ccs_write(sensor, ANALOG_GAIN_CODE_GLOBAL, ctrl->val); 684 685 break; 686 687 case V4L2_CID_CCS_ANALOGUE_LINEAR_GAIN: 688 rval = ccs_write(sensor, ANALOG_LINEAR_GAIN_GLOBAL, ctrl->val); 689 690 break; 691 692 case V4L2_CID_CCS_ANALOGUE_EXPONENTIAL_GAIN: 693 rval = ccs_write(sensor, ANALOG_EXPONENTIAL_GAIN_GLOBAL, 694 ctrl->val); 695 696 break; 697 698 case V4L2_CID_DIGITAL_GAIN: 699 if (CCS_LIM(sensor, DIGITAL_GAIN_CAPABILITY) == 700 CCS_DIGITAL_GAIN_CAPABILITY_GLOBAL) { 701 rval = ccs_write(sensor, DIGITAL_GAIN_GLOBAL, 702 ctrl->val); 703 break; 704 } 705 706 rval = ccs_write_addr(sensor, 707 SMIAPP_REG_U16_DIGITAL_GAIN_GREENR, 708 ctrl->val); 709 if (rval) 710 break; 711 712 rval = ccs_write_addr(sensor, 713 SMIAPP_REG_U16_DIGITAL_GAIN_RED, 714 ctrl->val); 715 if (rval) 716 break; 717 718 rval = ccs_write_addr(sensor, 719 SMIAPP_REG_U16_DIGITAL_GAIN_BLUE, 720 ctrl->val); 721 if (rval) 722 break; 723 724 rval = ccs_write_addr(sensor, 725 SMIAPP_REG_U16_DIGITAL_GAIN_GREENB, 726 ctrl->val); 727 728 break; 729 case V4L2_CID_EXPOSURE: 730 rval = ccs_write(sensor, COARSE_INTEGRATION_TIME, ctrl->val); 731 732 break; 733 case V4L2_CID_HFLIP: 734 case V4L2_CID_VFLIP: 735 rval = ccs_write(sensor, IMAGE_ORIENTATION, orient); 736 737 break; 738 case V4L2_CID_VBLANK: 739 rval = ccs_write(sensor, FRAME_LENGTH_LINES, 740 sensor->pa_src.height + ctrl->val); 741 742 break; 743 case V4L2_CID_HBLANK: 744 rval = ccs_write(sensor, LINE_LENGTH_PCK, 745 sensor->pa_src.width + ctrl->val); 746 747 break; 748 case V4L2_CID_TEST_PATTERN: 749 rval = ccs_write(sensor, TEST_PATTERN_MODE, ctrl->val); 750 751 break; 752 case V4L2_CID_TEST_PATTERN_RED: 753 rval = ccs_write(sensor, TEST_DATA_RED, ctrl->val); 754 755 break; 756 case V4L2_CID_TEST_PATTERN_GREENR: 757 rval = ccs_write(sensor, TEST_DATA_GREENR, ctrl->val); 758 759 break; 760 case V4L2_CID_TEST_PATTERN_BLUE: 761 rval = ccs_write(sensor, TEST_DATA_BLUE, ctrl->val); 762 763 break; 764 case V4L2_CID_TEST_PATTERN_GREENB: 765 rval = ccs_write(sensor, TEST_DATA_GREENB, ctrl->val); 766 767 break; 768 case V4L2_CID_CCS_SHADING_CORRECTION: 769 rval = ccs_write(sensor, SHADING_CORRECTION_EN, 770 ctrl->val ? CCS_SHADING_CORRECTION_EN_ENABLE : 771 0); 772 773 if (!rval && sensor->luminance_level) 774 v4l2_ctrl_activate(sensor->luminance_level, ctrl->val); 775 776 break; 777 case V4L2_CID_CCS_LUMINANCE_CORRECTION_LEVEL: 778 rval = ccs_write(sensor, LUMINANCE_CORRECTION_LEVEL, ctrl->val); 779 780 break; 781 case V4L2_CID_PIXEL_RATE: 782 /* For v4l2_ctrl_s_ctrl_int64() used internally. */ 783 rval = 0; 784 785 break; 786 default: 787 rval = -EINVAL; 788 } 789 790 if (pm_status > 0) { 791 pm_runtime_mark_last_busy(&client->dev); 792 pm_runtime_put_autosuspend(&client->dev); 793 } 794 795 return rval; 796} 797 798static const struct v4l2_ctrl_ops ccs_ctrl_ops = { 799 .s_ctrl = ccs_set_ctrl, 800}; 801 802static int ccs_init_controls(struct ccs_sensor *sensor) 803{ 804 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 805 struct v4l2_fwnode_device_properties props; 806 int rval; 807 808 rval = v4l2_ctrl_handler_init(&sensor->pixel_array->ctrl_handler, 19); 809 if (rval) 810 return rval; 811 812 sensor->pixel_array->ctrl_handler.lock = &sensor->mutex; 813 814 rval = v4l2_fwnode_device_parse(&client->dev, &props); 815 if (rval) 816 return rval; 817 818 rval = v4l2_ctrl_new_fwnode_properties(&sensor->pixel_array->ctrl_handler, 819 &ccs_ctrl_ops, &props); 820 if (rval) 821 return rval; 822 823 switch (CCS_LIM(sensor, ANALOG_GAIN_CAPABILITY)) { 824 case CCS_ANALOG_GAIN_CAPABILITY_GLOBAL: { 825 struct { 826 const char *name; 827 u32 id; 828 s32 value; 829 } const gain_ctrls[] = { 830 { "Analogue Gain m0", V4L2_CID_CCS_ANALOGUE_GAIN_M0, 831 CCS_LIM(sensor, ANALOG_GAIN_M0), }, 832 { "Analogue Gain c0", V4L2_CID_CCS_ANALOGUE_GAIN_C0, 833 CCS_LIM(sensor, ANALOG_GAIN_C0), }, 834 { "Analogue Gain m1", V4L2_CID_CCS_ANALOGUE_GAIN_M1, 835 CCS_LIM(sensor, ANALOG_GAIN_M1), }, 836 { "Analogue Gain c1", V4L2_CID_CCS_ANALOGUE_GAIN_C1, 837 CCS_LIM(sensor, ANALOG_GAIN_C1), }, 838 }; 839 struct v4l2_ctrl_config ctrl_cfg = { 840 .type = V4L2_CTRL_TYPE_INTEGER, 841 .ops = &ccs_ctrl_ops, 842 .flags = V4L2_CTRL_FLAG_READ_ONLY, 843 .step = 1, 844 }; 845 unsigned int i; 846 847 for (i = 0; i < ARRAY_SIZE(gain_ctrls); i++) { 848 ctrl_cfg.name = gain_ctrls[i].name; 849 ctrl_cfg.id = gain_ctrls[i].id; 850 ctrl_cfg.min = ctrl_cfg.max = ctrl_cfg.def = 851 gain_ctrls[i].value; 852 853 v4l2_ctrl_new_custom(&sensor->pixel_array->ctrl_handler, 854 &ctrl_cfg, NULL); 855 } 856 857 v4l2_ctrl_new_std(&sensor->pixel_array->ctrl_handler, 858 &ccs_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, 859 CCS_LIM(sensor, ANALOG_GAIN_CODE_MIN), 860 CCS_LIM(sensor, ANALOG_GAIN_CODE_MAX), 861 max(CCS_LIM(sensor, ANALOG_GAIN_CODE_STEP), 862 1U), 863 CCS_LIM(sensor, ANALOG_GAIN_CODE_MIN)); 864 } 865 break; 866 867 case CCS_ANALOG_GAIN_CAPABILITY_ALTERNATE_GLOBAL: { 868 struct { 869 const char *name; 870 u32 id; 871 u16 min, max, step; 872 } const gain_ctrls[] = { 873 { 874 "Analogue Linear Gain", 875 V4L2_CID_CCS_ANALOGUE_LINEAR_GAIN, 876 CCS_LIM(sensor, ANALOG_LINEAR_GAIN_MIN), 877 CCS_LIM(sensor, ANALOG_LINEAR_GAIN_MAX), 878 max(CCS_LIM(sensor, 879 ANALOG_LINEAR_GAIN_STEP_SIZE), 880 1U), 881 }, 882 { 883 "Analogue Exponential Gain", 884 V4L2_CID_CCS_ANALOGUE_EXPONENTIAL_GAIN, 885 CCS_LIM(sensor, ANALOG_EXPONENTIAL_GAIN_MIN), 886 CCS_LIM(sensor, ANALOG_EXPONENTIAL_GAIN_MAX), 887 max(CCS_LIM(sensor, 888 ANALOG_EXPONENTIAL_GAIN_STEP_SIZE), 889 1U), 890 }, 891 }; 892 struct v4l2_ctrl_config ctrl_cfg = { 893 .type = V4L2_CTRL_TYPE_INTEGER, 894 .ops = &ccs_ctrl_ops, 895 }; 896 unsigned int i; 897 898 for (i = 0; i < ARRAY_SIZE(gain_ctrls); i++) { 899 ctrl_cfg.name = gain_ctrls[i].name; 900 ctrl_cfg.min = ctrl_cfg.def = gain_ctrls[i].min; 901 ctrl_cfg.max = gain_ctrls[i].max; 902 ctrl_cfg.step = gain_ctrls[i].step; 903 ctrl_cfg.id = gain_ctrls[i].id; 904 905 v4l2_ctrl_new_custom(&sensor->pixel_array->ctrl_handler, 906 &ctrl_cfg, NULL); 907 } 908 } 909 } 910 911 if (CCS_LIM(sensor, SHADING_CORRECTION_CAPABILITY) & 912 (CCS_SHADING_CORRECTION_CAPABILITY_COLOR_SHADING | 913 CCS_SHADING_CORRECTION_CAPABILITY_LUMINANCE_CORRECTION)) { 914 const struct v4l2_ctrl_config ctrl_cfg = { 915 .name = "Shading Correction", 916 .type = V4L2_CTRL_TYPE_BOOLEAN, 917 .id = V4L2_CID_CCS_SHADING_CORRECTION, 918 .ops = &ccs_ctrl_ops, 919 .max = 1, 920 .step = 1, 921 }; 922 923 v4l2_ctrl_new_custom(&sensor->pixel_array->ctrl_handler, 924 &ctrl_cfg, NULL); 925 } 926 927 if (CCS_LIM(sensor, SHADING_CORRECTION_CAPABILITY) & 928 CCS_SHADING_CORRECTION_CAPABILITY_LUMINANCE_CORRECTION) { 929 const struct v4l2_ctrl_config ctrl_cfg = { 930 .name = "Luminance Correction Level", 931 .type = V4L2_CTRL_TYPE_BOOLEAN, 932 .id = V4L2_CID_CCS_LUMINANCE_CORRECTION_LEVEL, 933 .ops = &ccs_ctrl_ops, 934 .max = 255, 935 .step = 1, 936 .def = 128, 937 }; 938 939 sensor->luminance_level = 940 v4l2_ctrl_new_custom(&sensor->pixel_array->ctrl_handler, 941 &ctrl_cfg, NULL); 942 } 943 944 if (CCS_LIM(sensor, DIGITAL_GAIN_CAPABILITY) == 945 CCS_DIGITAL_GAIN_CAPABILITY_GLOBAL || 946 CCS_LIM(sensor, DIGITAL_GAIN_CAPABILITY) == 947 SMIAPP_DIGITAL_GAIN_CAPABILITY_PER_CHANNEL) 948 v4l2_ctrl_new_std(&sensor->pixel_array->ctrl_handler, 949 &ccs_ctrl_ops, V4L2_CID_DIGITAL_GAIN, 950 CCS_LIM(sensor, DIGITAL_GAIN_MIN), 951 CCS_LIM(sensor, DIGITAL_GAIN_MAX), 952 max(CCS_LIM(sensor, DIGITAL_GAIN_STEP_SIZE), 953 1U), 954 0x100); 955 956 /* Exposure limits will be updated soon, use just something here. */ 957 sensor->exposure = v4l2_ctrl_new_std( 958 &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops, 959 V4L2_CID_EXPOSURE, 0, 0, 1, 0); 960 961 sensor->hflip = v4l2_ctrl_new_std( 962 &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops, 963 V4L2_CID_HFLIP, 0, 1, 1, 0); 964 sensor->vflip = v4l2_ctrl_new_std( 965 &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops, 966 V4L2_CID_VFLIP, 0, 1, 1, 0); 967 968 sensor->vblank = v4l2_ctrl_new_std( 969 &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops, 970 V4L2_CID_VBLANK, 0, 1, 1, 0); 971 972 if (sensor->vblank) 973 sensor->vblank->flags |= V4L2_CTRL_FLAG_UPDATE; 974 975 sensor->hblank = v4l2_ctrl_new_std( 976 &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops, 977 V4L2_CID_HBLANK, 0, 1, 1, 0); 978 979 if (sensor->hblank) 980 sensor->hblank->flags |= V4L2_CTRL_FLAG_UPDATE; 981 982 sensor->pixel_rate_parray = v4l2_ctrl_new_std( 983 &sensor->pixel_array->ctrl_handler, &ccs_ctrl_ops, 984 V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1); 985 986 v4l2_ctrl_new_std_menu_items(&sensor->pixel_array->ctrl_handler, 987 &ccs_ctrl_ops, V4L2_CID_TEST_PATTERN, 988 ARRAY_SIZE(ccs_test_patterns) - 1, 989 0, 0, ccs_test_patterns); 990 991 if (sensor->pixel_array->ctrl_handler.error) { 992 dev_err(&client->dev, 993 "pixel array controls initialization failed (%d)\n", 994 sensor->pixel_array->ctrl_handler.error); 995 return sensor->pixel_array->ctrl_handler.error; 996 } 997 998 sensor->pixel_array->sd.ctrl_handler = 999 &sensor->pixel_array->ctrl_handler; 1000 1001 v4l2_ctrl_cluster(2, &sensor->hflip); 1002 1003 rval = v4l2_ctrl_handler_init(&sensor->src->ctrl_handler, 0); 1004 if (rval) 1005 return rval; 1006 1007 sensor->src->ctrl_handler.lock = &sensor->mutex; 1008 1009 sensor->pixel_rate_csi = v4l2_ctrl_new_std( 1010 &sensor->src->ctrl_handler, &ccs_ctrl_ops, 1011 V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1); 1012 1013 if (sensor->src->ctrl_handler.error) { 1014 dev_err(&client->dev, 1015 "src controls initialization failed (%d)\n", 1016 sensor->src->ctrl_handler.error); 1017 return sensor->src->ctrl_handler.error; 1018 } 1019 1020 sensor->src->sd.ctrl_handler = &sensor->src->ctrl_handler; 1021 1022 return 0; 1023} 1024 1025/* 1026 * For controls that require information on available media bus codes 1027 * and linke frequencies. 1028 */ 1029static int ccs_init_late_controls(struct ccs_sensor *sensor) 1030{ 1031 unsigned long *valid_link_freqs = &sensor->valid_link_freqs[ 1032 sensor->csi_format->compressed - sensor->compressed_min_bpp]; 1033 unsigned int i; 1034 1035 for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++) { 1036 int max_value = (1 << sensor->csi_format->width) - 1; 1037 1038 sensor->test_data[i] = v4l2_ctrl_new_std( 1039 &sensor->pixel_array->ctrl_handler, 1040 &ccs_ctrl_ops, V4L2_CID_TEST_PATTERN_RED + i, 1041 0, max_value, 1, max_value); 1042 } 1043 1044 sensor->link_freq = v4l2_ctrl_new_int_menu( 1045 &sensor->src->ctrl_handler, &ccs_ctrl_ops, 1046 V4L2_CID_LINK_FREQ, __fls(*valid_link_freqs), 1047 __ffs(*valid_link_freqs), sensor->hwcfg.op_sys_clock); 1048 1049 return sensor->src->ctrl_handler.error; 1050} 1051 1052static void ccs_free_controls(struct ccs_sensor *sensor) 1053{ 1054 unsigned int i; 1055 1056 for (i = 0; i < sensor->ssds_used; i++) 1057 v4l2_ctrl_handler_free(&sensor->ssds[i].ctrl_handler); 1058} 1059 1060static int ccs_get_mbus_formats(struct ccs_sensor *sensor) 1061{ 1062 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 1063 struct ccs_pll *pll = &sensor->pll; 1064 u8 compressed_max_bpp = 0; 1065 unsigned int type, n; 1066 unsigned int i, pixel_order; 1067 int rval; 1068 1069 type = CCS_LIM(sensor, DATA_FORMAT_MODEL_TYPE); 1070 1071 dev_dbg(&client->dev, "data_format_model_type %u\n", type); 1072 1073 rval = ccs_read(sensor, PIXEL_ORDER, &pixel_order); 1074 if (rval) 1075 return rval; 1076 1077 if (pixel_order >= ARRAY_SIZE(pixel_order_str)) { 1078 dev_dbg(&client->dev, "bad pixel order %u\n", pixel_order); 1079 return -EINVAL; 1080 } 1081 1082 dev_dbg(&client->dev, "pixel order %u (%s)\n", pixel_order, 1083 pixel_order_str[pixel_order]); 1084 1085 switch (type) { 1086 case CCS_DATA_FORMAT_MODEL_TYPE_NORMAL: 1087 n = SMIAPP_DATA_FORMAT_MODEL_TYPE_NORMAL_N; 1088 break; 1089 case CCS_DATA_FORMAT_MODEL_TYPE_EXTENDED: 1090 n = CCS_LIM_DATA_FORMAT_DESCRIPTOR_MAX_N + 1; 1091 break; 1092 default: 1093 return -EINVAL; 1094 } 1095 1096 sensor->default_pixel_order = pixel_order; 1097 sensor->mbus_frame_fmts = 0; 1098 1099 for (i = 0; i < n; i++) { 1100 unsigned int fmt, j; 1101 1102 fmt = CCS_LIM_AT(sensor, DATA_FORMAT_DESCRIPTOR, i); 1103 1104 dev_dbg(&client->dev, "%u: bpp %u, compressed %u\n", 1105 i, fmt >> 8, (u8)fmt); 1106 1107 for (j = 0; j < ARRAY_SIZE(ccs_csi_data_formats); j++) { 1108 const struct ccs_csi_data_format *f = 1109 &ccs_csi_data_formats[j]; 1110 1111 if (f->pixel_order != CCS_PIXEL_ORDER_GRBG) 1112 continue; 1113 1114 if (f->width != fmt >> 1115 CCS_DATA_FORMAT_DESCRIPTOR_UNCOMPRESSED_SHIFT || 1116 f->compressed != 1117 (fmt & CCS_DATA_FORMAT_DESCRIPTOR_COMPRESSED_MASK)) 1118 continue; 1119 1120 dev_dbg(&client->dev, "jolly good! %u\n", j); 1121 1122 sensor->default_mbus_frame_fmts |= 1 << j; 1123 } 1124 } 1125 1126 /* Figure out which BPP values can be used with which formats. */ 1127 pll->binning_horizontal = 1; 1128 pll->binning_vertical = 1; 1129 pll->scale_m = sensor->scale_m; 1130 1131 for (i = 0; i < ARRAY_SIZE(ccs_csi_data_formats); i++) { 1132 sensor->compressed_min_bpp = 1133 min(ccs_csi_data_formats[i].compressed, 1134 sensor->compressed_min_bpp); 1135 compressed_max_bpp = 1136 max(ccs_csi_data_formats[i].compressed, 1137 compressed_max_bpp); 1138 } 1139 1140 sensor->valid_link_freqs = devm_kcalloc( 1141 &client->dev, 1142 compressed_max_bpp - sensor->compressed_min_bpp + 1, 1143 sizeof(*sensor->valid_link_freqs), GFP_KERNEL); 1144 if (!sensor->valid_link_freqs) 1145 return -ENOMEM; 1146 1147 for (i = 0; i < ARRAY_SIZE(ccs_csi_data_formats); i++) { 1148 const struct ccs_csi_data_format *f = 1149 &ccs_csi_data_formats[i]; 1150 unsigned long *valid_link_freqs = 1151 &sensor->valid_link_freqs[ 1152 f->compressed - sensor->compressed_min_bpp]; 1153 unsigned int j; 1154 1155 if (!(sensor->default_mbus_frame_fmts & 1 << i)) 1156 continue; 1157 1158 pll->bits_per_pixel = f->compressed; 1159 1160 for (j = 0; sensor->hwcfg.op_sys_clock[j]; j++) { 1161 pll->link_freq = sensor->hwcfg.op_sys_clock[j]; 1162 1163 rval = ccs_pll_try(sensor, pll); 1164 dev_dbg(&client->dev, "link freq %u Hz, bpp %u %s\n", 1165 pll->link_freq, pll->bits_per_pixel, 1166 rval ? "not ok" : "ok"); 1167 if (rval) 1168 continue; 1169 1170 set_bit(j, valid_link_freqs); 1171 } 1172 1173 if (!*valid_link_freqs) { 1174 dev_info(&client->dev, 1175 "no valid link frequencies for %u bpp\n", 1176 f->compressed); 1177 sensor->default_mbus_frame_fmts &= ~BIT(i); 1178 continue; 1179 } 1180 1181 if (!sensor->csi_format 1182 || f->width > sensor->csi_format->width 1183 || (f->width == sensor->csi_format->width 1184 && f->compressed > sensor->csi_format->compressed)) { 1185 sensor->csi_format = f; 1186 sensor->internal_csi_format = f; 1187 } 1188 } 1189 1190 if (!sensor->csi_format) { 1191 dev_err(&client->dev, "no supported mbus code found\n"); 1192 return -EINVAL; 1193 } 1194 1195 ccs_update_mbus_formats(sensor); 1196 1197 return 0; 1198} 1199 1200static void ccs_update_blanking(struct ccs_sensor *sensor) 1201{ 1202 struct v4l2_ctrl *vblank = sensor->vblank; 1203 struct v4l2_ctrl *hblank = sensor->hblank; 1204 u16 min_fll, max_fll, min_llp, max_llp, min_lbp; 1205 int min, max; 1206 1207 if (sensor->binning_vertical > 1 || sensor->binning_horizontal > 1) { 1208 min_fll = CCS_LIM(sensor, MIN_FRAME_LENGTH_LINES_BIN); 1209 max_fll = CCS_LIM(sensor, MAX_FRAME_LENGTH_LINES_BIN); 1210 min_llp = CCS_LIM(sensor, MIN_LINE_LENGTH_PCK_BIN); 1211 max_llp = CCS_LIM(sensor, MAX_LINE_LENGTH_PCK_BIN); 1212 min_lbp = CCS_LIM(sensor, MIN_LINE_BLANKING_PCK_BIN); 1213 } else { 1214 min_fll = CCS_LIM(sensor, MIN_FRAME_LENGTH_LINES); 1215 max_fll = CCS_LIM(sensor, MAX_FRAME_LENGTH_LINES); 1216 min_llp = CCS_LIM(sensor, MIN_LINE_LENGTH_PCK); 1217 max_llp = CCS_LIM(sensor, MAX_LINE_LENGTH_PCK); 1218 min_lbp = CCS_LIM(sensor, MIN_LINE_BLANKING_PCK); 1219 } 1220 1221 min = max_t(int, 1222 CCS_LIM(sensor, MIN_FRAME_BLANKING_LINES), 1223 min_fll - sensor->pa_src.height); 1224 max = max_fll - sensor->pa_src.height; 1225 1226 __v4l2_ctrl_modify_range(vblank, min, max, vblank->step, min); 1227 1228 min = max_t(int, min_llp - sensor->pa_src.width, min_lbp); 1229 max = max_llp - sensor->pa_src.width; 1230 1231 __v4l2_ctrl_modify_range(hblank, min, max, hblank->step, min); 1232 1233 __ccs_update_exposure_limits(sensor); 1234} 1235 1236static int ccs_pll_blanking_update(struct ccs_sensor *sensor) 1237{ 1238 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 1239 int rval; 1240 1241 rval = ccs_pll_update(sensor); 1242 if (rval < 0) 1243 return rval; 1244 1245 /* Output from pixel array, including blanking */ 1246 ccs_update_blanking(sensor); 1247 1248 dev_dbg(&client->dev, "vblank\t\t%d\n", sensor->vblank->val); 1249 dev_dbg(&client->dev, "hblank\t\t%d\n", sensor->hblank->val); 1250 1251 dev_dbg(&client->dev, "real timeperframe\t100/%d\n", 1252 sensor->pll.pixel_rate_pixel_array / 1253 ((sensor->pa_src.width + sensor->hblank->val) * 1254 (sensor->pa_src.height + sensor->vblank->val) / 100)); 1255 1256 return 0; 1257} 1258 1259/* 1260 * 1261 * SMIA++ NVM handling 1262 * 1263 */ 1264 1265static int ccs_read_nvm_page(struct ccs_sensor *sensor, u32 p, u8 *nvm, 1266 u8 *status) 1267{ 1268 unsigned int i; 1269 int rval; 1270 u32 s; 1271 1272 *status = 0; 1273 1274 rval = ccs_write(sensor, DATA_TRANSFER_IF_1_PAGE_SELECT, p); 1275 if (rval) 1276 return rval; 1277 1278 rval = ccs_write(sensor, DATA_TRANSFER_IF_1_CTRL, 1279 CCS_DATA_TRANSFER_IF_1_CTRL_ENABLE); 1280 if (rval) 1281 return rval; 1282 1283 rval = ccs_read(sensor, DATA_TRANSFER_IF_1_STATUS, &s); 1284 if (rval) 1285 return rval; 1286 1287 if (s & CCS_DATA_TRANSFER_IF_1_STATUS_IMPROPER_IF_USAGE) { 1288 *status = s; 1289 return -ENODATA; 1290 } 1291 1292 if (CCS_LIM(sensor, DATA_TRANSFER_IF_CAPABILITY) & 1293 CCS_DATA_TRANSFER_IF_CAPABILITY_POLLING) { 1294 for (i = 1000; i > 0; i--) { 1295 if (s & CCS_DATA_TRANSFER_IF_1_STATUS_READ_IF_READY) 1296 break; 1297 1298 rval = ccs_read(sensor, DATA_TRANSFER_IF_1_STATUS, &s); 1299 if (rval) 1300 return rval; 1301 } 1302 1303 if (!i) 1304 return -ETIMEDOUT; 1305 } 1306 1307 for (i = 0; i <= CCS_LIM_DATA_TRANSFER_IF_1_DATA_MAX_P; i++) { 1308 u32 v; 1309 1310 rval = ccs_read(sensor, DATA_TRANSFER_IF_1_DATA(i), &v); 1311 if (rval) 1312 return rval; 1313 1314 *nvm++ = v; 1315 } 1316 1317 return 0; 1318} 1319 1320static int ccs_read_nvm(struct ccs_sensor *sensor, unsigned char *nvm, 1321 size_t nvm_size) 1322{ 1323 u8 status = 0; 1324 u32 p; 1325 int rval = 0, rval2; 1326 1327 for (p = 0; p < nvm_size / (CCS_LIM_DATA_TRANSFER_IF_1_DATA_MAX_P + 1) 1328 && !rval; p++) { 1329 rval = ccs_read_nvm_page(sensor, p, nvm, &status); 1330 nvm += CCS_LIM_DATA_TRANSFER_IF_1_DATA_MAX_P + 1; 1331 } 1332 1333 if (rval == -ENODATA && 1334 status & CCS_DATA_TRANSFER_IF_1_STATUS_IMPROPER_IF_USAGE) 1335 rval = 0; 1336 1337 rval2 = ccs_write(sensor, DATA_TRANSFER_IF_1_CTRL, 0); 1338 if (rval < 0) 1339 return rval; 1340 else 1341 return rval2 ?: p * (CCS_LIM_DATA_TRANSFER_IF_1_DATA_MAX_P + 1); 1342} 1343 1344/* 1345 * 1346 * SMIA++ CCI address control 1347 * 1348 */ 1349static int ccs_change_cci_addr(struct ccs_sensor *sensor) 1350{ 1351 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 1352 int rval; 1353 u32 val; 1354 1355 client->addr = sensor->hwcfg.i2c_addr_dfl; 1356 1357 rval = ccs_write(sensor, CCI_ADDRESS_CTRL, 1358 sensor->hwcfg.i2c_addr_alt << 1); 1359 if (rval) 1360 return rval; 1361 1362 client->addr = sensor->hwcfg.i2c_addr_alt; 1363 1364 /* verify addr change went ok */ 1365 rval = ccs_read(sensor, CCI_ADDRESS_CTRL, &val); 1366 if (rval) 1367 return rval; 1368 1369 if (val != sensor->hwcfg.i2c_addr_alt << 1) 1370 return -ENODEV; 1371 1372 return 0; 1373} 1374 1375/* 1376 * 1377 * SMIA++ Mode Control 1378 * 1379 */ 1380static int ccs_setup_flash_strobe(struct ccs_sensor *sensor) 1381{ 1382 struct ccs_flash_strobe_parms *strobe_setup; 1383 unsigned int ext_freq = sensor->hwcfg.ext_clk; 1384 u32 tmp; 1385 u32 strobe_adjustment; 1386 u32 strobe_width_high_rs; 1387 int rval; 1388 1389 strobe_setup = sensor->hwcfg.strobe_setup; 1390 1391 /* 1392 * How to calculate registers related to strobe length. Please 1393 * do not change, or if you do at least know what you're 1394 * doing. :-) 1395 * 1396 * Sakari Ailus <sakari.ailus@linux.intel.com> 2010-10-25 1397 * 1398 * flash_strobe_length [us] / 10^6 = (tFlash_strobe_width_ctrl 1399 * / EXTCLK freq [Hz]) * flash_strobe_adjustment 1400 * 1401 * tFlash_strobe_width_ctrl E N, [1 - 0xffff] 1402 * flash_strobe_adjustment E N, [1 - 0xff] 1403 * 1404 * The formula above is written as below to keep it on one 1405 * line: 1406 * 1407 * l / 10^6 = w / e * a 1408 * 1409 * Let's mark w * a by x: 1410 * 1411 * x = w * a 1412 * 1413 * Thus, we get: 1414 * 1415 * x = l * e / 10^6 1416 * 1417 * The strobe width must be at least as long as requested, 1418 * thus rounding upwards is needed. 1419 * 1420 * x = (l * e + 10^6 - 1) / 10^6 1421 * ----------------------------- 1422 * 1423 * Maximum possible accuracy is wanted at all times. Thus keep 1424 * a as small as possible. 1425 * 1426 * Calculate a, assuming maximum w, with rounding upwards: 1427 * 1428 * a = (x + (2^16 - 1) - 1) / (2^16 - 1) 1429 * ------------------------------------- 1430 * 1431 * Thus, we also get w, with that a, with rounding upwards: 1432 * 1433 * w = (x + a - 1) / a 1434 * ------------------- 1435 * 1436 * To get limits: 1437 * 1438 * x E [1, (2^16 - 1) * (2^8 - 1)] 1439 * 1440 * Substituting maximum x to the original formula (with rounding), 1441 * the maximum l is thus 1442 * 1443 * (2^16 - 1) * (2^8 - 1) * 10^6 = l * e + 10^6 - 1 1444 * 1445 * l = (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / e 1446 * -------------------------------------------------- 1447 * 1448 * flash_strobe_length must be clamped between 1 and 1449 * (10^6 * (2^16 - 1) * (2^8 - 1) - 10^6 + 1) / EXTCLK freq. 1450 * 1451 * Then, 1452 * 1453 * flash_strobe_adjustment = ((flash_strobe_length * 1454 * EXTCLK freq + 10^6 - 1) / 10^6 + (2^16 - 1) - 1) / (2^16 - 1) 1455 * 1456 * tFlash_strobe_width_ctrl = ((flash_strobe_length * 1457 * EXTCLK freq + 10^6 - 1) / 10^6 + 1458 * flash_strobe_adjustment - 1) / flash_strobe_adjustment 1459 */ 1460 tmp = div_u64(1000000ULL * ((1 << 16) - 1) * ((1 << 8) - 1) - 1461 1000000 + 1, ext_freq); 1462 strobe_setup->strobe_width_high_us = 1463 clamp_t(u32, strobe_setup->strobe_width_high_us, 1, tmp); 1464 1465 tmp = div_u64(((u64)strobe_setup->strobe_width_high_us * (u64)ext_freq + 1466 1000000 - 1), 1000000ULL); 1467 strobe_adjustment = (tmp + (1 << 16) - 1 - 1) / ((1 << 16) - 1); 1468 strobe_width_high_rs = (tmp + strobe_adjustment - 1) / 1469 strobe_adjustment; 1470 1471 rval = ccs_write(sensor, FLASH_MODE_RS, strobe_setup->mode); 1472 if (rval < 0) 1473 goto out; 1474 1475 rval = ccs_write(sensor, FLASH_STROBE_ADJUSTMENT, strobe_adjustment); 1476 if (rval < 0) 1477 goto out; 1478 1479 rval = ccs_write(sensor, TFLASH_STROBE_WIDTH_HIGH_RS_CTRL, 1480 strobe_width_high_rs); 1481 if (rval < 0) 1482 goto out; 1483 1484 rval = ccs_write(sensor, TFLASH_STROBE_DELAY_RS_CTRL, 1485 strobe_setup->strobe_delay); 1486 if (rval < 0) 1487 goto out; 1488 1489 rval = ccs_write(sensor, FLASH_STROBE_START_POINT, 1490 strobe_setup->stobe_start_point); 1491 if (rval < 0) 1492 goto out; 1493 1494 rval = ccs_write(sensor, FLASH_TRIGGER_RS, strobe_setup->trigger); 1495 1496out: 1497 sensor->hwcfg.strobe_setup->trigger = 0; 1498 1499 return rval; 1500} 1501 1502/* ----------------------------------------------------------------------------- 1503 * Power management 1504 */ 1505 1506static int ccs_write_msr_regs(struct ccs_sensor *sensor) 1507{ 1508 int rval; 1509 1510 rval = ccs_write_data_regs(sensor, 1511 sensor->sdata.sensor_manufacturer_regs, 1512 sensor->sdata.num_sensor_manufacturer_regs); 1513 if (rval) 1514 return rval; 1515 1516 return ccs_write_data_regs(sensor, 1517 sensor->mdata.module_manufacturer_regs, 1518 sensor->mdata.num_module_manufacturer_regs); 1519} 1520 1521static int ccs_update_phy_ctrl(struct ccs_sensor *sensor) 1522{ 1523 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 1524 u8 val; 1525 1526 if (!sensor->ccs_limits) 1527 return 0; 1528 1529 if (CCS_LIM(sensor, PHY_CTRL_CAPABILITY) & 1530 CCS_PHY_CTRL_CAPABILITY_AUTO_PHY_CTL) { 1531 val = CCS_PHY_CTRL_AUTO; 1532 } else if (CCS_LIM(sensor, PHY_CTRL_CAPABILITY) & 1533 CCS_PHY_CTRL_CAPABILITY_UI_PHY_CTL) { 1534 val = CCS_PHY_CTRL_UI; 1535 } else { 1536 dev_err(&client->dev, "manual PHY control not supported\n"); 1537 return -EINVAL; 1538 } 1539 1540 return ccs_write(sensor, PHY_CTRL, val); 1541} 1542 1543static int ccs_power_on(struct device *dev) 1544{ 1545 struct v4l2_subdev *subdev = dev_get_drvdata(dev); 1546 struct ccs_subdev *ssd = to_ccs_subdev(subdev); 1547 /* 1548 * The sub-device related to the I2C device is always the 1549 * source one, i.e. ssds[0]. 1550 */ 1551 struct ccs_sensor *sensor = 1552 container_of(ssd, struct ccs_sensor, ssds[0]); 1553 const struct ccs_device *ccsdev = device_get_match_data(dev); 1554 int rval; 1555 1556 rval = regulator_bulk_enable(ARRAY_SIZE(ccs_regulators), 1557 sensor->regulators); 1558 if (rval) { 1559 dev_err(dev, "failed to enable vana regulator\n"); 1560 return rval; 1561 } 1562 1563 if (sensor->reset || sensor->xshutdown || sensor->ext_clk) { 1564 unsigned int sleep; 1565 1566 rval = clk_prepare_enable(sensor->ext_clk); 1567 if (rval < 0) { 1568 dev_dbg(dev, "failed to enable xclk\n"); 1569 goto out_xclk_fail; 1570 } 1571 1572 gpiod_set_value(sensor->reset, 0); 1573 gpiod_set_value(sensor->xshutdown, 1); 1574 1575 if (ccsdev->flags & CCS_DEVICE_FLAG_IS_SMIA) 1576 sleep = SMIAPP_RESET_DELAY(sensor->hwcfg.ext_clk); 1577 else 1578 sleep = 5000; 1579 1580 usleep_range(sleep, sleep); 1581 } 1582 1583 /* 1584 * Failures to respond to the address change command have been noticed. 1585 * Those failures seem to be caused by the sensor requiring a longer 1586 * boot time than advertised. An additional 10ms delay seems to work 1587 * around the issue, but the SMIA++ I2C write retry hack makes the delay 1588 * unnecessary. The failures need to be investigated to find a proper 1589 * fix, and a delay will likely need to be added here if the I2C write 1590 * retry hack is reverted before the root cause of the boot time issue 1591 * is found. 1592 */ 1593 1594 if (!sensor->reset && !sensor->xshutdown) { 1595 u8 retry = 100; 1596 u32 reset; 1597 1598 rval = ccs_write(sensor, SOFTWARE_RESET, CCS_SOFTWARE_RESET_ON); 1599 if (rval < 0) { 1600 dev_err(dev, "software reset failed\n"); 1601 goto out_cci_addr_fail; 1602 } 1603 1604 do { 1605 rval = ccs_read(sensor, SOFTWARE_RESET, &reset); 1606 reset = !rval && reset == CCS_SOFTWARE_RESET_OFF; 1607 if (reset) 1608 break; 1609 1610 usleep_range(1000, 2000); 1611 } while (--retry); 1612 1613 if (!reset) { 1614 dev_err(dev, "software reset failed\n"); 1615 rval = -EIO; 1616 goto out_cci_addr_fail; 1617 } 1618 } 1619 1620 if (sensor->hwcfg.i2c_addr_alt) { 1621 rval = ccs_change_cci_addr(sensor); 1622 if (rval) { 1623 dev_err(dev, "cci address change error\n"); 1624 goto out_cci_addr_fail; 1625 } 1626 } 1627 1628 rval = ccs_write(sensor, COMPRESSION_MODE, 1629 CCS_COMPRESSION_MODE_DPCM_PCM_SIMPLE); 1630 if (rval) { 1631 dev_err(dev, "compression mode set failed\n"); 1632 goto out_cci_addr_fail; 1633 } 1634 1635 rval = ccs_write(sensor, EXTCLK_FREQUENCY_MHZ, 1636 sensor->hwcfg.ext_clk / (1000000 / (1 << 8))); 1637 if (rval) { 1638 dev_err(dev, "extclk frequency set failed\n"); 1639 goto out_cci_addr_fail; 1640 } 1641 1642 rval = ccs_write(sensor, CSI_LANE_MODE, sensor->hwcfg.lanes - 1); 1643 if (rval) { 1644 dev_err(dev, "csi lane mode set failed\n"); 1645 goto out_cci_addr_fail; 1646 } 1647 1648 rval = ccs_write(sensor, FAST_STANDBY_CTRL, 1649 CCS_FAST_STANDBY_CTRL_FRAME_TRUNCATION); 1650 if (rval) { 1651 dev_err(dev, "fast standby set failed\n"); 1652 goto out_cci_addr_fail; 1653 } 1654 1655 rval = ccs_write(sensor, CSI_SIGNALING_MODE, 1656 sensor->hwcfg.csi_signalling_mode); 1657 if (rval) { 1658 dev_err(dev, "csi signalling mode set failed\n"); 1659 goto out_cci_addr_fail; 1660 } 1661 1662 rval = ccs_update_phy_ctrl(sensor); 1663 if (rval < 0) 1664 goto out_cci_addr_fail; 1665 1666 rval = ccs_write_msr_regs(sensor); 1667 if (rval) 1668 goto out_cci_addr_fail; 1669 1670 rval = ccs_call_quirk(sensor, post_poweron); 1671 if (rval) { 1672 dev_err(dev, "post_poweron quirks failed\n"); 1673 goto out_cci_addr_fail; 1674 } 1675 1676 return 0; 1677 1678out_cci_addr_fail: 1679 gpiod_set_value(sensor->reset, 1); 1680 gpiod_set_value(sensor->xshutdown, 0); 1681 clk_disable_unprepare(sensor->ext_clk); 1682 1683out_xclk_fail: 1684 regulator_bulk_disable(ARRAY_SIZE(ccs_regulators), 1685 sensor->regulators); 1686 1687 return rval; 1688} 1689 1690static int ccs_power_off(struct device *dev) 1691{ 1692 struct v4l2_subdev *subdev = dev_get_drvdata(dev); 1693 struct ccs_subdev *ssd = to_ccs_subdev(subdev); 1694 struct ccs_sensor *sensor = 1695 container_of(ssd, struct ccs_sensor, ssds[0]); 1696 1697 /* 1698 * Currently power/clock to lens are enable/disabled separately 1699 * but they are essentially the same signals. So if the sensor is 1700 * powered off while the lens is powered on the sensor does not 1701 * really see a power off and next time the cci address change 1702 * will fail. So do a soft reset explicitly here. 1703 */ 1704 if (sensor->hwcfg.i2c_addr_alt) 1705 ccs_write(sensor, SOFTWARE_RESET, CCS_SOFTWARE_RESET_ON); 1706 1707 gpiod_set_value(sensor->reset, 1); 1708 gpiod_set_value(sensor->xshutdown, 0); 1709 clk_disable_unprepare(sensor->ext_clk); 1710 usleep_range(5000, 5000); 1711 regulator_bulk_disable(ARRAY_SIZE(ccs_regulators), 1712 sensor->regulators); 1713 sensor->streaming = false; 1714 1715 return 0; 1716} 1717 1718/* ----------------------------------------------------------------------------- 1719 * Video stream management 1720 */ 1721 1722static int ccs_start_streaming(struct ccs_sensor *sensor) 1723{ 1724 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 1725 unsigned int binning_mode; 1726 int rval; 1727 1728 mutex_lock(&sensor->mutex); 1729 1730 rval = ccs_write(sensor, CSI_DATA_FORMAT, 1731 (sensor->csi_format->width << 8) | 1732 sensor->csi_format->compressed); 1733 if (rval) 1734 goto out; 1735 1736 /* Binning configuration */ 1737 if (sensor->binning_horizontal == 1 && 1738 sensor->binning_vertical == 1) { 1739 binning_mode = 0; 1740 } else { 1741 u8 binning_type = 1742 (sensor->binning_horizontal << 4) 1743 | sensor->binning_vertical; 1744 1745 rval = ccs_write(sensor, BINNING_TYPE, binning_type); 1746 if (rval < 0) 1747 goto out; 1748 1749 binning_mode = 1; 1750 } 1751 rval = ccs_write(sensor, BINNING_MODE, binning_mode); 1752 if (rval < 0) 1753 goto out; 1754 1755 /* Set up PLL */ 1756 rval = ccs_pll_configure(sensor); 1757 if (rval) 1758 goto out; 1759 1760 /* Analog crop start coordinates */ 1761 rval = ccs_write(sensor, X_ADDR_START, sensor->pa_src.left); 1762 if (rval < 0) 1763 goto out; 1764 1765 rval = ccs_write(sensor, Y_ADDR_START, sensor->pa_src.top); 1766 if (rval < 0) 1767 goto out; 1768 1769 /* Analog crop end coordinates */ 1770 rval = ccs_write(sensor, X_ADDR_END, 1771 sensor->pa_src.left + sensor->pa_src.width - 1); 1772 if (rval < 0) 1773 goto out; 1774 1775 rval = ccs_write(sensor, Y_ADDR_END, 1776 sensor->pa_src.top + sensor->pa_src.height - 1); 1777 if (rval < 0) 1778 goto out; 1779 1780 /* 1781 * Output from pixel array, including blanking, is set using 1782 * controls below. No need to set here. 1783 */ 1784 1785 /* Digital crop */ 1786 if (CCS_LIM(sensor, DIGITAL_CROP_CAPABILITY) 1787 == CCS_DIGITAL_CROP_CAPABILITY_INPUT_CROP) { 1788 rval = ccs_write(sensor, DIGITAL_CROP_X_OFFSET, 1789 sensor->scaler_sink.left); 1790 if (rval < 0) 1791 goto out; 1792 1793 rval = ccs_write(sensor, DIGITAL_CROP_Y_OFFSET, 1794 sensor->scaler_sink.top); 1795 if (rval < 0) 1796 goto out; 1797 1798 rval = ccs_write(sensor, DIGITAL_CROP_IMAGE_WIDTH, 1799 sensor->scaler_sink.width); 1800 if (rval < 0) 1801 goto out; 1802 1803 rval = ccs_write(sensor, DIGITAL_CROP_IMAGE_HEIGHT, 1804 sensor->scaler_sink.height); 1805 if (rval < 0) 1806 goto out; 1807 } 1808 1809 /* Scaling */ 1810 if (CCS_LIM(sensor, SCALING_CAPABILITY) 1811 != CCS_SCALING_CAPABILITY_NONE) { 1812 rval = ccs_write(sensor, SCALING_MODE, sensor->scaling_mode); 1813 if (rval < 0) 1814 goto out; 1815 1816 rval = ccs_write(sensor, SCALE_M, sensor->scale_m); 1817 if (rval < 0) 1818 goto out; 1819 } 1820 1821 /* Output size from sensor */ 1822 rval = ccs_write(sensor, X_OUTPUT_SIZE, sensor->src_src.width); 1823 if (rval < 0) 1824 goto out; 1825 rval = ccs_write(sensor, Y_OUTPUT_SIZE, sensor->src_src.height); 1826 if (rval < 0) 1827 goto out; 1828 1829 if (CCS_LIM(sensor, FLASH_MODE_CAPABILITY) & 1830 (CCS_FLASH_MODE_CAPABILITY_SINGLE_STROBE | 1831 SMIAPP_FLASH_MODE_CAPABILITY_MULTIPLE_STROBE) && 1832 sensor->hwcfg.strobe_setup != NULL && 1833 sensor->hwcfg.strobe_setup->trigger != 0) { 1834 rval = ccs_setup_flash_strobe(sensor); 1835 if (rval) 1836 goto out; 1837 } 1838 1839 rval = ccs_call_quirk(sensor, pre_streamon); 1840 if (rval) { 1841 dev_err(&client->dev, "pre_streamon quirks failed\n"); 1842 goto out; 1843 } 1844 1845 rval = ccs_write(sensor, MODE_SELECT, CCS_MODE_SELECT_STREAMING); 1846 1847out: 1848 mutex_unlock(&sensor->mutex); 1849 1850 return rval; 1851} 1852 1853static int ccs_stop_streaming(struct ccs_sensor *sensor) 1854{ 1855 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 1856 int rval; 1857 1858 mutex_lock(&sensor->mutex); 1859 rval = ccs_write(sensor, MODE_SELECT, CCS_MODE_SELECT_SOFTWARE_STANDBY); 1860 if (rval) 1861 goto out; 1862 1863 rval = ccs_call_quirk(sensor, post_streamoff); 1864 if (rval) 1865 dev_err(&client->dev, "post_streamoff quirks failed\n"); 1866 1867out: 1868 mutex_unlock(&sensor->mutex); 1869 return rval; 1870} 1871 1872/* ----------------------------------------------------------------------------- 1873 * V4L2 subdev video operations 1874 */ 1875 1876static int ccs_pm_get_init(struct ccs_sensor *sensor) 1877{ 1878 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 1879 int rval; 1880 1881 /* 1882 * It can't use pm_runtime_resume_and_get() here, as the driver 1883 * relies at the returned value to detect if the device was already 1884 * active or not. 1885 */ 1886 rval = pm_runtime_get_sync(&client->dev); 1887 if (rval < 0) 1888 goto error; 1889 1890 /* Device was already active, so don't set controls */ 1891 if (rval == 1 && !sensor->handler_setup_needed) 1892 return 0; 1893 1894 sensor->handler_setup_needed = false; 1895 1896 /* Restore V4L2 controls to the previously suspended device */ 1897 rval = v4l2_ctrl_handler_setup(&sensor->pixel_array->ctrl_handler); 1898 if (rval) 1899 goto error; 1900 1901 rval = v4l2_ctrl_handler_setup(&sensor->src->ctrl_handler); 1902 if (rval) 1903 goto error; 1904 1905 /* Keep PM runtime usage_count incremented on success */ 1906 return 0; 1907error: 1908 pm_runtime_put(&client->dev); 1909 return rval; 1910} 1911 1912static int ccs_set_stream(struct v4l2_subdev *subdev, int enable) 1913{ 1914 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 1915 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 1916 int rval; 1917 1918 if (!enable) { 1919 ccs_stop_streaming(sensor); 1920 sensor->streaming = false; 1921 pm_runtime_mark_last_busy(&client->dev); 1922 pm_runtime_put_autosuspend(&client->dev); 1923 1924 return 0; 1925 } 1926 1927 rval = ccs_pm_get_init(sensor); 1928 if (rval) 1929 return rval; 1930 1931 sensor->streaming = true; 1932 1933 rval = ccs_start_streaming(sensor); 1934 if (rval < 0) { 1935 sensor->streaming = false; 1936 pm_runtime_mark_last_busy(&client->dev); 1937 pm_runtime_put_autosuspend(&client->dev); 1938 } 1939 1940 return rval; 1941} 1942 1943static int ccs_pre_streamon(struct v4l2_subdev *subdev, u32 flags) 1944{ 1945 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 1946 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 1947 int rval; 1948 1949 if (flags & V4L2_SUBDEV_PRE_STREAMON_FL_MANUAL_LP) { 1950 switch (sensor->hwcfg.csi_signalling_mode) { 1951 case CCS_CSI_SIGNALING_MODE_CSI_2_DPHY: 1952 if (!(CCS_LIM(sensor, PHY_CTRL_CAPABILITY_2) & 1953 CCS_PHY_CTRL_CAPABILITY_2_MANUAL_LP_DPHY)) 1954 return -EACCES; 1955 break; 1956 case CCS_CSI_SIGNALING_MODE_CSI_2_CPHY: 1957 if (!(CCS_LIM(sensor, PHY_CTRL_CAPABILITY_2) & 1958 CCS_PHY_CTRL_CAPABILITY_2_MANUAL_LP_CPHY)) 1959 return -EACCES; 1960 break; 1961 default: 1962 return -EACCES; 1963 } 1964 } 1965 1966 rval = ccs_pm_get_init(sensor); 1967 if (rval) 1968 return rval; 1969 1970 if (flags & V4L2_SUBDEV_PRE_STREAMON_FL_MANUAL_LP) { 1971 rval = ccs_write(sensor, MANUAL_LP_CTRL, 1972 CCS_MANUAL_LP_CTRL_ENABLE); 1973 if (rval) 1974 pm_runtime_put(&client->dev); 1975 } 1976 1977 return rval; 1978} 1979 1980static int ccs_post_streamoff(struct v4l2_subdev *subdev) 1981{ 1982 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 1983 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 1984 1985 return pm_runtime_put(&client->dev); 1986} 1987 1988static int ccs_enum_mbus_code(struct v4l2_subdev *subdev, 1989 struct v4l2_subdev_state *sd_state, 1990 struct v4l2_subdev_mbus_code_enum *code) 1991{ 1992 struct i2c_client *client = v4l2_get_subdevdata(subdev); 1993 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 1994 unsigned int i; 1995 int idx = -1; 1996 int rval = -EINVAL; 1997 1998 mutex_lock(&sensor->mutex); 1999 2000 dev_err(&client->dev, "subdev %s, pad %u, index %u\n", 2001 subdev->name, code->pad, code->index); 2002 2003 if (subdev != &sensor->src->sd || code->pad != CCS_PAD_SRC) { 2004 if (code->index) 2005 goto out; 2006 2007 code->code = sensor->internal_csi_format->code; 2008 rval = 0; 2009 goto out; 2010 } 2011 2012 for (i = 0; i < ARRAY_SIZE(ccs_csi_data_formats); i++) { 2013 if (sensor->mbus_frame_fmts & (1 << i)) 2014 idx++; 2015 2016 if (idx == code->index) { 2017 code->code = ccs_csi_data_formats[i].code; 2018 dev_err(&client->dev, "found index %u, i %u, code %x\n", 2019 code->index, i, code->code); 2020 rval = 0; 2021 break; 2022 } 2023 } 2024 2025out: 2026 mutex_unlock(&sensor->mutex); 2027 2028 return rval; 2029} 2030 2031static u32 __ccs_get_mbus_code(struct v4l2_subdev *subdev, unsigned int pad) 2032{ 2033 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2034 2035 if (subdev == &sensor->src->sd && pad == CCS_PAD_SRC) 2036 return sensor->csi_format->code; 2037 else 2038 return sensor->internal_csi_format->code; 2039} 2040 2041static int __ccs_get_format(struct v4l2_subdev *subdev, 2042 struct v4l2_subdev_state *sd_state, 2043 struct v4l2_subdev_format *fmt) 2044{ 2045 fmt->format = *v4l2_subdev_state_get_format(sd_state, fmt->pad); 2046 fmt->format.code = __ccs_get_mbus_code(subdev, fmt->pad); 2047 2048 return 0; 2049} 2050 2051static int ccs_get_format(struct v4l2_subdev *subdev, 2052 struct v4l2_subdev_state *sd_state, 2053 struct v4l2_subdev_format *fmt) 2054{ 2055 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2056 int rval; 2057 2058 mutex_lock(&sensor->mutex); 2059 rval = __ccs_get_format(subdev, sd_state, fmt); 2060 mutex_unlock(&sensor->mutex); 2061 2062 return rval; 2063} 2064 2065static void ccs_get_crop_compose(struct v4l2_subdev *subdev, 2066 struct v4l2_subdev_state *sd_state, 2067 struct v4l2_rect **crops, 2068 struct v4l2_rect **comps) 2069{ 2070 struct ccs_subdev *ssd = to_ccs_subdev(subdev); 2071 unsigned int i; 2072 2073 if (crops) 2074 for (i = 0; i < subdev->entity.num_pads; i++) 2075 crops[i] = 2076 v4l2_subdev_state_get_crop(sd_state, i); 2077 if (comps) 2078 *comps = v4l2_subdev_state_get_compose(sd_state, 2079 ssd->sink_pad); 2080} 2081 2082/* Changes require propagation only on sink pad. */ 2083static void ccs_propagate(struct v4l2_subdev *subdev, 2084 struct v4l2_subdev_state *sd_state, int which, 2085 int target) 2086{ 2087 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2088 struct ccs_subdev *ssd = to_ccs_subdev(subdev); 2089 struct v4l2_rect *comp, *crops[CCS_PADS]; 2090 struct v4l2_mbus_framefmt *fmt; 2091 2092 ccs_get_crop_compose(subdev, sd_state, crops, &comp); 2093 2094 switch (target) { 2095 case V4L2_SEL_TGT_CROP: 2096 comp->width = crops[CCS_PAD_SINK]->width; 2097 comp->height = crops[CCS_PAD_SINK]->height; 2098 if (which == V4L2_SUBDEV_FORMAT_ACTIVE) { 2099 if (ssd == sensor->scaler) { 2100 sensor->scale_m = CCS_LIM(sensor, SCALER_N_MIN); 2101 sensor->scaling_mode = 2102 CCS_SCALING_MODE_NO_SCALING; 2103 sensor->scaler_sink = *comp; 2104 } else if (ssd == sensor->binner) { 2105 sensor->binning_horizontal = 1; 2106 sensor->binning_vertical = 1; 2107 } 2108 } 2109 fallthrough; 2110 case V4L2_SEL_TGT_COMPOSE: 2111 *crops[CCS_PAD_SRC] = *comp; 2112 fmt = v4l2_subdev_state_get_format(sd_state, CCS_PAD_SRC); 2113 fmt->width = comp->width; 2114 fmt->height = comp->height; 2115 if (which == V4L2_SUBDEV_FORMAT_ACTIVE && ssd == sensor->src) 2116 sensor->src_src = *crops[CCS_PAD_SRC]; 2117 break; 2118 default: 2119 WARN_ON_ONCE(1); 2120 } 2121} 2122 2123static const struct ccs_csi_data_format 2124*ccs_validate_csi_data_format(struct ccs_sensor *sensor, u32 code) 2125{ 2126 unsigned int i; 2127 2128 for (i = 0; i < ARRAY_SIZE(ccs_csi_data_formats); i++) { 2129 if (sensor->mbus_frame_fmts & (1 << i) && 2130 ccs_csi_data_formats[i].code == code) 2131 return &ccs_csi_data_formats[i]; 2132 } 2133 2134 return sensor->csi_format; 2135} 2136 2137static int ccs_set_format_source(struct v4l2_subdev *subdev, 2138 struct v4l2_subdev_state *sd_state, 2139 struct v4l2_subdev_format *fmt) 2140{ 2141 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2142 const struct ccs_csi_data_format *csi_format, 2143 *old_csi_format = sensor->csi_format; 2144 unsigned long *valid_link_freqs; 2145 u32 code = fmt->format.code; 2146 unsigned int i; 2147 int rval; 2148 2149 rval = __ccs_get_format(subdev, sd_state, fmt); 2150 if (rval) 2151 return rval; 2152 2153 /* 2154 * Media bus code is changeable on src subdev's source pad. On 2155 * other source pads we just get format here. 2156 */ 2157 if (subdev != &sensor->src->sd) 2158 return 0; 2159 2160 csi_format = ccs_validate_csi_data_format(sensor, code); 2161 2162 fmt->format.code = csi_format->code; 2163 2164 if (fmt->which != V4L2_SUBDEV_FORMAT_ACTIVE) 2165 return 0; 2166 2167 sensor->csi_format = csi_format; 2168 2169 if (csi_format->width != old_csi_format->width) 2170 for (i = 0; i < ARRAY_SIZE(sensor->test_data); i++) 2171 __v4l2_ctrl_modify_range( 2172 sensor->test_data[i], 0, 2173 (1 << csi_format->width) - 1, 1, 0); 2174 2175 if (csi_format->compressed == old_csi_format->compressed) 2176 return 0; 2177 2178 valid_link_freqs = 2179 &sensor->valid_link_freqs[sensor->csi_format->compressed 2180 - sensor->compressed_min_bpp]; 2181 2182 __v4l2_ctrl_modify_range( 2183 sensor->link_freq, 0, 2184 __fls(*valid_link_freqs), ~*valid_link_freqs, 2185 __ffs(*valid_link_freqs)); 2186 2187 return ccs_pll_update(sensor); 2188} 2189 2190static int ccs_set_format(struct v4l2_subdev *subdev, 2191 struct v4l2_subdev_state *sd_state, 2192 struct v4l2_subdev_format *fmt) 2193{ 2194 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2195 struct ccs_subdev *ssd = to_ccs_subdev(subdev); 2196 struct v4l2_rect *crops[CCS_PADS]; 2197 2198 mutex_lock(&sensor->mutex); 2199 2200 if (fmt->pad == ssd->source_pad) { 2201 int rval; 2202 2203 rval = ccs_set_format_source(subdev, sd_state, fmt); 2204 2205 mutex_unlock(&sensor->mutex); 2206 2207 return rval; 2208 } 2209 2210 /* Sink pad. Width and height are changeable here. */ 2211 fmt->format.code = __ccs_get_mbus_code(subdev, fmt->pad); 2212 fmt->format.width &= ~1; 2213 fmt->format.height &= ~1; 2214 fmt->format.field = V4L2_FIELD_NONE; 2215 2216 fmt->format.width = 2217 clamp(fmt->format.width, 2218 CCS_LIM(sensor, MIN_X_OUTPUT_SIZE), 2219 CCS_LIM(sensor, MAX_X_OUTPUT_SIZE)); 2220 fmt->format.height = 2221 clamp(fmt->format.height, 2222 CCS_LIM(sensor, MIN_Y_OUTPUT_SIZE), 2223 CCS_LIM(sensor, MAX_Y_OUTPUT_SIZE)); 2224 2225 ccs_get_crop_compose(subdev, sd_state, crops, NULL); 2226 2227 crops[ssd->sink_pad]->left = 0; 2228 crops[ssd->sink_pad]->top = 0; 2229 crops[ssd->sink_pad]->width = fmt->format.width; 2230 crops[ssd->sink_pad]->height = fmt->format.height; 2231 ccs_propagate(subdev, sd_state, fmt->which, V4L2_SEL_TGT_CROP); 2232 2233 mutex_unlock(&sensor->mutex); 2234 2235 return 0; 2236} 2237 2238/* 2239 * Calculate goodness of scaled image size compared to expected image 2240 * size and flags provided. 2241 */ 2242#define SCALING_GOODNESS 100000 2243#define SCALING_GOODNESS_EXTREME 100000000 2244static int scaling_goodness(struct v4l2_subdev *subdev, int w, int ask_w, 2245 int h, int ask_h, u32 flags) 2246{ 2247 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2248 struct i2c_client *client = v4l2_get_subdevdata(subdev); 2249 int val = 0; 2250 2251 w &= ~1; 2252 ask_w &= ~1; 2253 h &= ~1; 2254 ask_h &= ~1; 2255 2256 if (flags & V4L2_SEL_FLAG_GE) { 2257 if (w < ask_w) 2258 val -= SCALING_GOODNESS; 2259 if (h < ask_h) 2260 val -= SCALING_GOODNESS; 2261 } 2262 2263 if (flags & V4L2_SEL_FLAG_LE) { 2264 if (w > ask_w) 2265 val -= SCALING_GOODNESS; 2266 if (h > ask_h) 2267 val -= SCALING_GOODNESS; 2268 } 2269 2270 val -= abs(w - ask_w); 2271 val -= abs(h - ask_h); 2272 2273 if (w < CCS_LIM(sensor, MIN_X_OUTPUT_SIZE)) 2274 val -= SCALING_GOODNESS_EXTREME; 2275 2276 dev_dbg(&client->dev, "w %d ask_w %d h %d ask_h %d goodness %d\n", 2277 w, ask_w, h, ask_h, val); 2278 2279 return val; 2280} 2281 2282static void ccs_set_compose_binner(struct v4l2_subdev *subdev, 2283 struct v4l2_subdev_state *sd_state, 2284 struct v4l2_subdev_selection *sel, 2285 struct v4l2_rect **crops, 2286 struct v4l2_rect *comp) 2287{ 2288 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2289 unsigned int i; 2290 unsigned int binh = 1, binv = 1; 2291 int best = scaling_goodness( 2292 subdev, 2293 crops[CCS_PAD_SINK]->width, sel->r.width, 2294 crops[CCS_PAD_SINK]->height, sel->r.height, sel->flags); 2295 2296 for (i = 0; i < sensor->nbinning_subtypes; i++) { 2297 int this = scaling_goodness( 2298 subdev, 2299 crops[CCS_PAD_SINK]->width 2300 / sensor->binning_subtypes[i].horizontal, 2301 sel->r.width, 2302 crops[CCS_PAD_SINK]->height 2303 / sensor->binning_subtypes[i].vertical, 2304 sel->r.height, sel->flags); 2305 2306 if (this > best) { 2307 binh = sensor->binning_subtypes[i].horizontal; 2308 binv = sensor->binning_subtypes[i].vertical; 2309 best = this; 2310 } 2311 } 2312 if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) { 2313 sensor->binning_vertical = binv; 2314 sensor->binning_horizontal = binh; 2315 } 2316 2317 sel->r.width = (crops[CCS_PAD_SINK]->width / binh) & ~1; 2318 sel->r.height = (crops[CCS_PAD_SINK]->height / binv) & ~1; 2319} 2320 2321/* 2322 * Calculate best scaling ratio and mode for given output resolution. 2323 * 2324 * Try all of these: horizontal ratio, vertical ratio and smallest 2325 * size possible (horizontally). 2326 * 2327 * Also try whether horizontal scaler or full scaler gives a better 2328 * result. 2329 */ 2330static void ccs_set_compose_scaler(struct v4l2_subdev *subdev, 2331 struct v4l2_subdev_state *sd_state, 2332 struct v4l2_subdev_selection *sel, 2333 struct v4l2_rect **crops, 2334 struct v4l2_rect *comp) 2335{ 2336 struct i2c_client *client = v4l2_get_subdevdata(subdev); 2337 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2338 u32 min, max, a, b, max_m; 2339 u32 scale_m = CCS_LIM(sensor, SCALER_N_MIN); 2340 int mode = CCS_SCALING_MODE_HORIZONTAL; 2341 u32 try[4]; 2342 u32 ntry = 0; 2343 unsigned int i; 2344 int best = INT_MIN; 2345 2346 sel->r.width = min_t(unsigned int, sel->r.width, 2347 crops[CCS_PAD_SINK]->width); 2348 sel->r.height = min_t(unsigned int, sel->r.height, 2349 crops[CCS_PAD_SINK]->height); 2350 2351 a = crops[CCS_PAD_SINK]->width 2352 * CCS_LIM(sensor, SCALER_N_MIN) / sel->r.width; 2353 b = crops[CCS_PAD_SINK]->height 2354 * CCS_LIM(sensor, SCALER_N_MIN) / sel->r.height; 2355 max_m = crops[CCS_PAD_SINK]->width 2356 * CCS_LIM(sensor, SCALER_N_MIN) 2357 / CCS_LIM(sensor, MIN_X_OUTPUT_SIZE); 2358 2359 a = clamp(a, CCS_LIM(sensor, SCALER_M_MIN), 2360 CCS_LIM(sensor, SCALER_M_MAX)); 2361 b = clamp(b, CCS_LIM(sensor, SCALER_M_MIN), 2362 CCS_LIM(sensor, SCALER_M_MAX)); 2363 max_m = clamp(max_m, CCS_LIM(sensor, SCALER_M_MIN), 2364 CCS_LIM(sensor, SCALER_M_MAX)); 2365 2366 dev_dbg(&client->dev, "scaling: a %u b %u max_m %u\n", a, b, max_m); 2367 2368 min = min(max_m, min(a, b)); 2369 max = min(max_m, max(a, b)); 2370 2371 try[ntry] = min; 2372 ntry++; 2373 if (min != max) { 2374 try[ntry] = max; 2375 ntry++; 2376 } 2377 if (max != max_m) { 2378 try[ntry] = min + 1; 2379 ntry++; 2380 if (min != max) { 2381 try[ntry] = max + 1; 2382 ntry++; 2383 } 2384 } 2385 2386 for (i = 0; i < ntry; i++) { 2387 int this = scaling_goodness( 2388 subdev, 2389 crops[CCS_PAD_SINK]->width 2390 / try[i] * CCS_LIM(sensor, SCALER_N_MIN), 2391 sel->r.width, 2392 crops[CCS_PAD_SINK]->height, 2393 sel->r.height, 2394 sel->flags); 2395 2396 dev_dbg(&client->dev, "trying factor %u (%u)\n", try[i], i); 2397 2398 if (this > best) { 2399 scale_m = try[i]; 2400 mode = CCS_SCALING_MODE_HORIZONTAL; 2401 best = this; 2402 } 2403 2404 if (CCS_LIM(sensor, SCALING_CAPABILITY) 2405 == CCS_SCALING_CAPABILITY_HORIZONTAL) 2406 continue; 2407 2408 this = scaling_goodness( 2409 subdev, crops[CCS_PAD_SINK]->width 2410 / try[i] 2411 * CCS_LIM(sensor, SCALER_N_MIN), 2412 sel->r.width, 2413 crops[CCS_PAD_SINK]->height 2414 / try[i] 2415 * CCS_LIM(sensor, SCALER_N_MIN), 2416 sel->r.height, 2417 sel->flags); 2418 2419 if (this > best) { 2420 scale_m = try[i]; 2421 mode = SMIAPP_SCALING_MODE_BOTH; 2422 best = this; 2423 } 2424 } 2425 2426 sel->r.width = 2427 (crops[CCS_PAD_SINK]->width 2428 / scale_m 2429 * CCS_LIM(sensor, SCALER_N_MIN)) & ~1; 2430 if (mode == SMIAPP_SCALING_MODE_BOTH) 2431 sel->r.height = 2432 (crops[CCS_PAD_SINK]->height 2433 / scale_m 2434 * CCS_LIM(sensor, SCALER_N_MIN)) 2435 & ~1; 2436 else 2437 sel->r.height = crops[CCS_PAD_SINK]->height; 2438 2439 if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) { 2440 sensor->scale_m = scale_m; 2441 sensor->scaling_mode = mode; 2442 } 2443} 2444/* We're only called on source pads. This function sets scaling. */ 2445static int ccs_set_compose(struct v4l2_subdev *subdev, 2446 struct v4l2_subdev_state *sd_state, 2447 struct v4l2_subdev_selection *sel) 2448{ 2449 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2450 struct ccs_subdev *ssd = to_ccs_subdev(subdev); 2451 struct v4l2_rect *comp, *crops[CCS_PADS]; 2452 2453 ccs_get_crop_compose(subdev, sd_state, crops, &comp); 2454 2455 sel->r.top = 0; 2456 sel->r.left = 0; 2457 2458 if (ssd == sensor->binner) 2459 ccs_set_compose_binner(subdev, sd_state, sel, crops, comp); 2460 else 2461 ccs_set_compose_scaler(subdev, sd_state, sel, crops, comp); 2462 2463 *comp = sel->r; 2464 ccs_propagate(subdev, sd_state, sel->which, V4L2_SEL_TGT_COMPOSE); 2465 2466 if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE) 2467 return ccs_pll_blanking_update(sensor); 2468 2469 return 0; 2470} 2471 2472static int ccs_sel_supported(struct v4l2_subdev *subdev, 2473 struct v4l2_subdev_selection *sel) 2474{ 2475 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2476 struct ccs_subdev *ssd = to_ccs_subdev(subdev); 2477 2478 /* We only implement crop in three places. */ 2479 switch (sel->target) { 2480 case V4L2_SEL_TGT_CROP: 2481 case V4L2_SEL_TGT_CROP_BOUNDS: 2482 if (ssd == sensor->pixel_array && sel->pad == CCS_PA_PAD_SRC) 2483 return 0; 2484 if (ssd == sensor->src && sel->pad == CCS_PAD_SRC) 2485 return 0; 2486 if (ssd == sensor->scaler && sel->pad == CCS_PAD_SINK && 2487 CCS_LIM(sensor, DIGITAL_CROP_CAPABILITY) 2488 == CCS_DIGITAL_CROP_CAPABILITY_INPUT_CROP) 2489 return 0; 2490 return -EINVAL; 2491 case V4L2_SEL_TGT_NATIVE_SIZE: 2492 if (ssd == sensor->pixel_array && sel->pad == CCS_PA_PAD_SRC) 2493 return 0; 2494 return -EINVAL; 2495 case V4L2_SEL_TGT_COMPOSE: 2496 case V4L2_SEL_TGT_COMPOSE_BOUNDS: 2497 if (sel->pad == ssd->source_pad) 2498 return -EINVAL; 2499 if (ssd == sensor->binner) 2500 return 0; 2501 if (ssd == sensor->scaler && CCS_LIM(sensor, SCALING_CAPABILITY) 2502 != CCS_SCALING_CAPABILITY_NONE) 2503 return 0; 2504 fallthrough; 2505 default: 2506 return -EINVAL; 2507 } 2508} 2509 2510static int ccs_set_crop(struct v4l2_subdev *subdev, 2511 struct v4l2_subdev_state *sd_state, 2512 struct v4l2_subdev_selection *sel) 2513{ 2514 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2515 struct ccs_subdev *ssd = to_ccs_subdev(subdev); 2516 struct v4l2_rect src_size = { 0 }, *crops[CCS_PADS], *comp; 2517 2518 ccs_get_crop_compose(subdev, sd_state, crops, &comp); 2519 2520 if (sel->pad == ssd->sink_pad) { 2521 struct v4l2_mbus_framefmt *mfmt = 2522 v4l2_subdev_state_get_format(sd_state, sel->pad); 2523 2524 src_size.width = mfmt->width; 2525 src_size.height = mfmt->height; 2526 } else { 2527 src_size = *comp; 2528 } 2529 2530 if (ssd == sensor->src && sel->pad == CCS_PAD_SRC) { 2531 sel->r.left = 0; 2532 sel->r.top = 0; 2533 } 2534 2535 sel->r.width = min(sel->r.width, src_size.width); 2536 sel->r.height = min(sel->r.height, src_size.height); 2537 2538 sel->r.left = min_t(int, sel->r.left, src_size.width - sel->r.width); 2539 sel->r.top = min_t(int, sel->r.top, src_size.height - sel->r.height); 2540 2541 *crops[sel->pad] = sel->r; 2542 2543 if (ssd != sensor->pixel_array && sel->pad == CCS_PAD_SINK) 2544 ccs_propagate(subdev, sd_state, sel->which, V4L2_SEL_TGT_CROP); 2545 else if (sel->which == V4L2_SUBDEV_FORMAT_ACTIVE && 2546 ssd == sensor->pixel_array) 2547 sensor->pa_src = sel->r; 2548 2549 return 0; 2550} 2551 2552static void ccs_get_native_size(struct ccs_subdev *ssd, struct v4l2_rect *r) 2553{ 2554 r->top = 0; 2555 r->left = 0; 2556 r->width = CCS_LIM(ssd->sensor, X_ADDR_MAX) + 1; 2557 r->height = CCS_LIM(ssd->sensor, Y_ADDR_MAX) + 1; 2558} 2559 2560static int ccs_get_selection(struct v4l2_subdev *subdev, 2561 struct v4l2_subdev_state *sd_state, 2562 struct v4l2_subdev_selection *sel) 2563{ 2564 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2565 struct ccs_subdev *ssd = to_ccs_subdev(subdev); 2566 struct v4l2_rect *comp, *crops[CCS_PADS]; 2567 int ret; 2568 2569 ret = ccs_sel_supported(subdev, sel); 2570 if (ret) 2571 return ret; 2572 2573 ccs_get_crop_compose(subdev, sd_state, crops, &comp); 2574 2575 switch (sel->target) { 2576 case V4L2_SEL_TGT_CROP_BOUNDS: 2577 case V4L2_SEL_TGT_NATIVE_SIZE: 2578 if (ssd == sensor->pixel_array) { 2579 ccs_get_native_size(ssd, &sel->r); 2580 } else if (sel->pad == ssd->sink_pad) { 2581 struct v4l2_mbus_framefmt *sink_fmt = 2582 v4l2_subdev_state_get_format(sd_state, 2583 ssd->sink_pad); 2584 sel->r.top = sel->r.left = 0; 2585 sel->r.width = sink_fmt->width; 2586 sel->r.height = sink_fmt->height; 2587 } else { 2588 sel->r = *comp; 2589 } 2590 break; 2591 case V4L2_SEL_TGT_CROP: 2592 case V4L2_SEL_TGT_COMPOSE_BOUNDS: 2593 sel->r = *crops[sel->pad]; 2594 break; 2595 case V4L2_SEL_TGT_COMPOSE: 2596 sel->r = *comp; 2597 break; 2598 } 2599 2600 return 0; 2601} 2602 2603static int ccs_set_selection(struct v4l2_subdev *subdev, 2604 struct v4l2_subdev_state *sd_state, 2605 struct v4l2_subdev_selection *sel) 2606{ 2607 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2608 int ret; 2609 2610 ret = ccs_sel_supported(subdev, sel); 2611 if (ret) 2612 return ret; 2613 2614 mutex_lock(&sensor->mutex); 2615 2616 sel->r.left = max(0, sel->r.left & ~1); 2617 sel->r.top = max(0, sel->r.top & ~1); 2618 sel->r.width = CCS_ALIGN_DIM(sel->r.width, sel->flags); 2619 sel->r.height = CCS_ALIGN_DIM(sel->r.height, sel->flags); 2620 2621 sel->r.width = max_t(unsigned int, CCS_LIM(sensor, MIN_X_OUTPUT_SIZE), 2622 sel->r.width); 2623 sel->r.height = max_t(unsigned int, CCS_LIM(sensor, MIN_Y_OUTPUT_SIZE), 2624 sel->r.height); 2625 2626 switch (sel->target) { 2627 case V4L2_SEL_TGT_CROP: 2628 ret = ccs_set_crop(subdev, sd_state, sel); 2629 break; 2630 case V4L2_SEL_TGT_COMPOSE: 2631 ret = ccs_set_compose(subdev, sd_state, sel); 2632 break; 2633 default: 2634 ret = -EINVAL; 2635 } 2636 2637 mutex_unlock(&sensor->mutex); 2638 return ret; 2639} 2640 2641static int ccs_get_skip_frames(struct v4l2_subdev *subdev, u32 *frames) 2642{ 2643 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2644 2645 *frames = sensor->frame_skip; 2646 return 0; 2647} 2648 2649static int ccs_get_skip_top_lines(struct v4l2_subdev *subdev, u32 *lines) 2650{ 2651 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2652 2653 *lines = sensor->image_start; 2654 2655 return 0; 2656} 2657 2658/* ----------------------------------------------------------------------------- 2659 * sysfs attributes 2660 */ 2661 2662static ssize_t 2663nvm_show(struct device *dev, struct device_attribute *attr, char *buf) 2664{ 2665 struct v4l2_subdev *subdev = i2c_get_clientdata(to_i2c_client(dev)); 2666 struct i2c_client *client = v4l2_get_subdevdata(subdev); 2667 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2668 int rval; 2669 2670 if (!sensor->dev_init_done) 2671 return -EBUSY; 2672 2673 rval = ccs_pm_get_init(sensor); 2674 if (rval < 0) 2675 return -ENODEV; 2676 2677 rval = ccs_read_nvm(sensor, buf, PAGE_SIZE); 2678 if (rval < 0) { 2679 pm_runtime_put(&client->dev); 2680 dev_err(&client->dev, "nvm read failed\n"); 2681 return -ENODEV; 2682 } 2683 2684 pm_runtime_mark_last_busy(&client->dev); 2685 pm_runtime_put_autosuspend(&client->dev); 2686 2687 /* 2688 * NVM is still way below a PAGE_SIZE, so we can safely 2689 * assume this for now. 2690 */ 2691 return rval; 2692} 2693static DEVICE_ATTR_RO(nvm); 2694 2695static ssize_t 2696ident_show(struct device *dev, struct device_attribute *attr, char *buf) 2697{ 2698 struct v4l2_subdev *subdev = i2c_get_clientdata(to_i2c_client(dev)); 2699 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2700 struct ccs_module_info *minfo = &sensor->minfo; 2701 2702 if (minfo->mipi_manufacturer_id) 2703 return sysfs_emit(buf, "%4.4x%4.4x%2.2x\n", 2704 minfo->mipi_manufacturer_id, minfo->model_id, 2705 minfo->revision_number) + 1; 2706 else 2707 return sysfs_emit(buf, "%2.2x%4.4x%2.2x\n", 2708 minfo->smia_manufacturer_id, minfo->model_id, 2709 minfo->revision_number) + 1; 2710} 2711static DEVICE_ATTR_RO(ident); 2712 2713/* ----------------------------------------------------------------------------- 2714 * V4L2 subdev core operations 2715 */ 2716 2717static int ccs_identify_module(struct ccs_sensor *sensor) 2718{ 2719 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 2720 struct ccs_module_info *minfo = &sensor->minfo; 2721 unsigned int i; 2722 u32 rev; 2723 int rval = 0; 2724 2725 /* Module info */ 2726 rval = ccs_read(sensor, MODULE_MANUFACTURER_ID, 2727 &minfo->mipi_manufacturer_id); 2728 if (!rval && !minfo->mipi_manufacturer_id) 2729 rval = ccs_read_addr(sensor, SMIAPP_REG_U8_MANUFACTURER_ID, 2730 &minfo->smia_manufacturer_id); 2731 if (!rval) 2732 rval = ccs_read(sensor, MODULE_MODEL_ID, &minfo->model_id); 2733 if (!rval) 2734 rval = ccs_read(sensor, MODULE_REVISION_NUMBER_MAJOR, &rev); 2735 if (!rval) { 2736 rval = ccs_read(sensor, MODULE_REVISION_NUMBER_MINOR, 2737 &minfo->revision_number); 2738 minfo->revision_number |= rev << 8; 2739 } 2740 if (!rval) 2741 rval = ccs_read(sensor, MODULE_DATE_YEAR, &minfo->module_year); 2742 if (!rval) 2743 rval = ccs_read(sensor, MODULE_DATE_MONTH, 2744 &minfo->module_month); 2745 if (!rval) 2746 rval = ccs_read(sensor, MODULE_DATE_DAY, &minfo->module_day); 2747 2748 /* Sensor info */ 2749 if (!rval) 2750 rval = ccs_read(sensor, SENSOR_MANUFACTURER_ID, 2751 &minfo->sensor_mipi_manufacturer_id); 2752 if (!rval && !minfo->sensor_mipi_manufacturer_id) 2753 rval = ccs_read(sensor, SENSOR_MANUFACTURER_ID, 2754 &minfo->sensor_smia_manufacturer_id); 2755 if (!rval) 2756 rval = ccs_read(sensor, SENSOR_MODEL_ID, 2757 &minfo->sensor_model_id); 2758 if (!rval) 2759 rval = ccs_read(sensor, SENSOR_REVISION_NUMBER, 2760 &minfo->sensor_revision_number); 2761 if (!rval && !minfo->sensor_revision_number) 2762 rval = ccs_read(sensor, SENSOR_REVISION_NUMBER_16, 2763 &minfo->sensor_revision_number); 2764 if (!rval) 2765 rval = ccs_read(sensor, SENSOR_FIRMWARE_VERSION, 2766 &minfo->sensor_firmware_version); 2767 2768 /* SMIA */ 2769 if (!rval) 2770 rval = ccs_read(sensor, MIPI_CCS_VERSION, &minfo->ccs_version); 2771 if (!rval && !minfo->ccs_version) 2772 rval = ccs_read_addr(sensor, SMIAPP_REG_U8_SMIA_VERSION, 2773 &minfo->smia_version); 2774 if (!rval && !minfo->ccs_version) 2775 rval = ccs_read_addr(sensor, SMIAPP_REG_U8_SMIAPP_VERSION, 2776 &minfo->smiapp_version); 2777 2778 if (rval) { 2779 dev_err(&client->dev, "sensor detection failed\n"); 2780 return -ENODEV; 2781 } 2782 2783 if (minfo->mipi_manufacturer_id) 2784 dev_dbg(&client->dev, "MIPI CCS module 0x%4.4x-0x%4.4x\n", 2785 minfo->mipi_manufacturer_id, minfo->model_id); 2786 else 2787 dev_dbg(&client->dev, "SMIA module 0x%2.2x-0x%4.4x\n", 2788 minfo->smia_manufacturer_id, minfo->model_id); 2789 2790 dev_dbg(&client->dev, 2791 "module revision 0x%4.4x date %2.2d-%2.2d-%2.2d\n", 2792 minfo->revision_number, minfo->module_year, minfo->module_month, 2793 minfo->module_day); 2794 2795 if (minfo->sensor_mipi_manufacturer_id) 2796 dev_dbg(&client->dev, "MIPI CCS sensor 0x%4.4x-0x%4.4x\n", 2797 minfo->sensor_mipi_manufacturer_id, 2798 minfo->sensor_model_id); 2799 else 2800 dev_dbg(&client->dev, "SMIA sensor 0x%2.2x-0x%4.4x\n", 2801 minfo->sensor_smia_manufacturer_id, 2802 minfo->sensor_model_id); 2803 2804 dev_dbg(&client->dev, 2805 "sensor revision 0x%4.4x firmware version 0x%2.2x\n", 2806 minfo->sensor_revision_number, minfo->sensor_firmware_version); 2807 2808 if (minfo->ccs_version) { 2809 dev_dbg(&client->dev, "MIPI CCS version %u.%u", 2810 (minfo->ccs_version & CCS_MIPI_CCS_VERSION_MAJOR_MASK) 2811 >> CCS_MIPI_CCS_VERSION_MAJOR_SHIFT, 2812 (minfo->ccs_version & CCS_MIPI_CCS_VERSION_MINOR_MASK)); 2813 minfo->name = CCS_NAME; 2814 } else { 2815 dev_dbg(&client->dev, 2816 "smia version %2.2d smiapp version %2.2d\n", 2817 minfo->smia_version, minfo->smiapp_version); 2818 minfo->name = SMIAPP_NAME; 2819 /* 2820 * Some modules have bad data in the lvalues below. Hope the 2821 * rvalues have better stuff. The lvalues are module 2822 * parameters whereas the rvalues are sensor parameters. 2823 */ 2824 if (minfo->sensor_smia_manufacturer_id && 2825 !minfo->smia_manufacturer_id && !minfo->model_id) { 2826 minfo->smia_manufacturer_id = 2827 minfo->sensor_smia_manufacturer_id; 2828 minfo->model_id = minfo->sensor_model_id; 2829 minfo->revision_number = minfo->sensor_revision_number; 2830 } 2831 } 2832 2833 for (i = 0; i < ARRAY_SIZE(ccs_module_idents); i++) { 2834 if (ccs_module_idents[i].mipi_manufacturer_id && 2835 ccs_module_idents[i].mipi_manufacturer_id 2836 != minfo->mipi_manufacturer_id) 2837 continue; 2838 if (ccs_module_idents[i].smia_manufacturer_id && 2839 ccs_module_idents[i].smia_manufacturer_id 2840 != minfo->smia_manufacturer_id) 2841 continue; 2842 if (ccs_module_idents[i].model_id != minfo->model_id) 2843 continue; 2844 if (ccs_module_idents[i].flags 2845 & CCS_MODULE_IDENT_FLAG_REV_LE) { 2846 if (ccs_module_idents[i].revision_number_major 2847 < (minfo->revision_number >> 8)) 2848 continue; 2849 } else { 2850 if (ccs_module_idents[i].revision_number_major 2851 != (minfo->revision_number >> 8)) 2852 continue; 2853 } 2854 2855 minfo->name = ccs_module_idents[i].name; 2856 minfo->quirk = ccs_module_idents[i].quirk; 2857 break; 2858 } 2859 2860 if (i >= ARRAY_SIZE(ccs_module_idents)) 2861 dev_warn(&client->dev, 2862 "no quirks for this module; let's hope it's fully compliant\n"); 2863 2864 dev_dbg(&client->dev, "the sensor is called %s\n", minfo->name); 2865 2866 return 0; 2867} 2868 2869static const struct v4l2_subdev_ops ccs_ops; 2870static const struct media_entity_operations ccs_entity_ops; 2871 2872static int ccs_register_subdev(struct ccs_sensor *sensor, 2873 struct ccs_subdev *ssd, 2874 struct ccs_subdev *sink_ssd, 2875 u16 source_pad, u16 sink_pad, u32 link_flags) 2876{ 2877 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 2878 int rval; 2879 2880 if (!sink_ssd) 2881 return 0; 2882 2883 rval = v4l2_device_register_subdev(sensor->src->sd.v4l2_dev, &ssd->sd); 2884 if (rval) { 2885 dev_err(&client->dev, "v4l2_device_register_subdev failed\n"); 2886 return rval; 2887 } 2888 2889 rval = media_create_pad_link(&ssd->sd.entity, source_pad, 2890 &sink_ssd->sd.entity, sink_pad, 2891 link_flags); 2892 if (rval) { 2893 dev_err(&client->dev, "media_create_pad_link failed\n"); 2894 v4l2_device_unregister_subdev(&ssd->sd); 2895 return rval; 2896 } 2897 2898 return 0; 2899} 2900 2901static void ccs_unregistered(struct v4l2_subdev *subdev) 2902{ 2903 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2904 unsigned int i; 2905 2906 for (i = 1; i < sensor->ssds_used; i++) 2907 v4l2_device_unregister_subdev(&sensor->ssds[i].sd); 2908} 2909 2910static int ccs_registered(struct v4l2_subdev *subdev) 2911{ 2912 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 2913 int rval; 2914 2915 if (sensor->scaler) { 2916 rval = ccs_register_subdev(sensor, sensor->binner, 2917 sensor->scaler, 2918 CCS_PAD_SRC, CCS_PAD_SINK, 2919 MEDIA_LNK_FL_ENABLED | 2920 MEDIA_LNK_FL_IMMUTABLE); 2921 if (rval < 0) 2922 return rval; 2923 } 2924 2925 rval = ccs_register_subdev(sensor, sensor->pixel_array, sensor->binner, 2926 CCS_PA_PAD_SRC, CCS_PAD_SINK, 2927 MEDIA_LNK_FL_ENABLED | 2928 MEDIA_LNK_FL_IMMUTABLE); 2929 if (rval) 2930 goto out_err; 2931 2932 return 0; 2933 2934out_err: 2935 ccs_unregistered(subdev); 2936 2937 return rval; 2938} 2939 2940static void ccs_cleanup(struct ccs_sensor *sensor) 2941{ 2942 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 2943 unsigned int i; 2944 2945 for (i = 0; i < sensor->ssds_used; i++) { 2946 v4l2_subdev_cleanup(&sensor->ssds[2].sd); 2947 media_entity_cleanup(&sensor->ssds[i].sd.entity); 2948 } 2949 2950 device_remove_file(&client->dev, &dev_attr_nvm); 2951 device_remove_file(&client->dev, &dev_attr_ident); 2952 2953 ccs_free_controls(sensor); 2954} 2955 2956static int ccs_init_subdev(struct ccs_sensor *sensor, 2957 struct ccs_subdev *ssd, const char *name, 2958 unsigned short num_pads, u32 function, 2959 const char *lock_name, 2960 struct lock_class_key *lock_key) 2961{ 2962 struct i2c_client *client = v4l2_get_subdevdata(&sensor->src->sd); 2963 int rval; 2964 2965 if (!ssd) 2966 return 0; 2967 2968 if (ssd != sensor->src) 2969 v4l2_subdev_init(&ssd->sd, &ccs_ops); 2970 2971 ssd->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; 2972 ssd->sd.entity.function = function; 2973 ssd->sensor = sensor; 2974 2975 ssd->npads = num_pads; 2976 ssd->source_pad = num_pads - 1; 2977 2978 v4l2_i2c_subdev_set_name(&ssd->sd, client, sensor->minfo.name, name); 2979 2980 ssd->pads[ssd->source_pad].flags = MEDIA_PAD_FL_SOURCE; 2981 if (ssd != sensor->pixel_array) 2982 ssd->pads[ssd->sink_pad].flags = MEDIA_PAD_FL_SINK; 2983 2984 ssd->sd.entity.ops = &ccs_entity_ops; 2985 2986 if (ssd != sensor->src) { 2987 ssd->sd.owner = THIS_MODULE; 2988 ssd->sd.dev = &client->dev; 2989 v4l2_set_subdevdata(&ssd->sd, client); 2990 } 2991 2992 rval = media_entity_pads_init(&ssd->sd.entity, ssd->npads, ssd->pads); 2993 if (rval) { 2994 dev_err(&client->dev, "media_entity_pads_init failed\n"); 2995 return rval; 2996 } 2997 2998 rval = __v4l2_subdev_init_finalize(&ssd->sd, lock_name, lock_key); 2999 if (rval) { 3000 media_entity_cleanup(&ssd->sd.entity); 3001 return rval; 3002 } 3003 3004 return 0; 3005} 3006 3007static int ccs_init_state(struct v4l2_subdev *sd, 3008 struct v4l2_subdev_state *sd_state) 3009{ 3010 struct ccs_subdev *ssd = to_ccs_subdev(sd); 3011 struct ccs_sensor *sensor = ssd->sensor; 3012 unsigned int pad = ssd == sensor->pixel_array ? 3013 CCS_PA_PAD_SRC : CCS_PAD_SINK; 3014 struct v4l2_mbus_framefmt *fmt = 3015 v4l2_subdev_state_get_format(sd_state, pad); 3016 struct v4l2_rect *crop = 3017 v4l2_subdev_state_get_crop(sd_state, pad); 3018 bool is_active = !sd->active_state || sd->active_state == sd_state; 3019 3020 mutex_lock(&sensor->mutex); 3021 3022 ccs_get_native_size(ssd, crop); 3023 3024 fmt->width = crop->width; 3025 fmt->height = crop->height; 3026 fmt->code = sensor->internal_csi_format->code; 3027 fmt->field = V4L2_FIELD_NONE; 3028 3029 if (ssd == sensor->pixel_array) { 3030 if (is_active) 3031 sensor->pa_src = *crop; 3032 3033 mutex_unlock(&sensor->mutex); 3034 return 0; 3035 } 3036 3037 fmt = v4l2_subdev_state_get_format(sd_state, CCS_PAD_SRC); 3038 fmt->code = ssd == sensor->src ? 3039 sensor->csi_format->code : sensor->internal_csi_format->code; 3040 fmt->field = V4L2_FIELD_NONE; 3041 3042 ccs_propagate(sd, sd_state, is_active, V4L2_SEL_TGT_CROP); 3043 3044 mutex_unlock(&sensor->mutex); 3045 3046 return 0; 3047} 3048 3049static const struct v4l2_subdev_video_ops ccs_video_ops = { 3050 .s_stream = ccs_set_stream, 3051 .pre_streamon = ccs_pre_streamon, 3052 .post_streamoff = ccs_post_streamoff, 3053}; 3054 3055static const struct v4l2_subdev_pad_ops ccs_pad_ops = { 3056 .enum_mbus_code = ccs_enum_mbus_code, 3057 .get_fmt = ccs_get_format, 3058 .set_fmt = ccs_set_format, 3059 .get_selection = ccs_get_selection, 3060 .set_selection = ccs_set_selection, 3061}; 3062 3063static const struct v4l2_subdev_sensor_ops ccs_sensor_ops = { 3064 .g_skip_frames = ccs_get_skip_frames, 3065 .g_skip_top_lines = ccs_get_skip_top_lines, 3066}; 3067 3068static const struct v4l2_subdev_ops ccs_ops = { 3069 .video = &ccs_video_ops, 3070 .pad = &ccs_pad_ops, 3071 .sensor = &ccs_sensor_ops, 3072}; 3073 3074static const struct media_entity_operations ccs_entity_ops = { 3075 .link_validate = v4l2_subdev_link_validate, 3076}; 3077 3078static const struct v4l2_subdev_internal_ops ccs_internal_src_ops = { 3079 .init_state = ccs_init_state, 3080 .registered = ccs_registered, 3081 .unregistered = ccs_unregistered, 3082}; 3083 3084/* ----------------------------------------------------------------------------- 3085 * I2C Driver 3086 */ 3087 3088static int ccs_get_hwconfig(struct ccs_sensor *sensor, struct device *dev) 3089{ 3090 struct ccs_hwconfig *hwcfg = &sensor->hwcfg; 3091 struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = V4L2_MBUS_UNKNOWN }; 3092 struct fwnode_handle *ep; 3093 struct fwnode_handle *fwnode = dev_fwnode(dev); 3094 unsigned int i; 3095 int rval; 3096 3097 ep = fwnode_graph_get_endpoint_by_id(fwnode, 0, 0, 3098 FWNODE_GRAPH_ENDPOINT_NEXT); 3099 if (!ep) 3100 return -ENODEV; 3101 3102 /* 3103 * Note that we do need to rely on detecting the bus type between CSI-2 3104 * D-PHY and CCP2 as the old bindings did not require it. 3105 */ 3106 rval = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); 3107 if (rval) 3108 goto out_err; 3109 3110 switch (bus_cfg.bus_type) { 3111 case V4L2_MBUS_CSI2_DPHY: 3112 hwcfg->csi_signalling_mode = CCS_CSI_SIGNALING_MODE_CSI_2_DPHY; 3113 hwcfg->lanes = bus_cfg.bus.mipi_csi2.num_data_lanes; 3114 break; 3115 case V4L2_MBUS_CSI2_CPHY: 3116 hwcfg->csi_signalling_mode = CCS_CSI_SIGNALING_MODE_CSI_2_CPHY; 3117 hwcfg->lanes = bus_cfg.bus.mipi_csi2.num_data_lanes; 3118 break; 3119 case V4L2_MBUS_CSI1: 3120 case V4L2_MBUS_CCP2: 3121 hwcfg->csi_signalling_mode = (bus_cfg.bus.mipi_csi1.strobe) ? 3122 SMIAPP_CSI_SIGNALLING_MODE_CCP2_DATA_STROBE : 3123 SMIAPP_CSI_SIGNALLING_MODE_CCP2_DATA_CLOCK; 3124 hwcfg->lanes = 1; 3125 break; 3126 default: 3127 dev_err(dev, "unsupported bus %u\n", bus_cfg.bus_type); 3128 rval = -EINVAL; 3129 goto out_err; 3130 } 3131 3132 rval = fwnode_property_read_u32(dev_fwnode(dev), "clock-frequency", 3133 &hwcfg->ext_clk); 3134 if (rval) 3135 dev_info(dev, "can't get clock-frequency\n"); 3136 3137 dev_dbg(dev, "clk %u, mode %u\n", hwcfg->ext_clk, 3138 hwcfg->csi_signalling_mode); 3139 3140 if (!bus_cfg.nr_of_link_frequencies) { 3141 dev_warn(dev, "no link frequencies defined\n"); 3142 rval = -EINVAL; 3143 goto out_err; 3144 } 3145 3146 hwcfg->op_sys_clock = devm_kcalloc( 3147 dev, bus_cfg.nr_of_link_frequencies + 1 /* guardian */, 3148 sizeof(*hwcfg->op_sys_clock), GFP_KERNEL); 3149 if (!hwcfg->op_sys_clock) { 3150 rval = -ENOMEM; 3151 goto out_err; 3152 } 3153 3154 for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++) { 3155 hwcfg->op_sys_clock[i] = bus_cfg.link_frequencies[i]; 3156 dev_dbg(dev, "freq %u: %lld\n", i, hwcfg->op_sys_clock[i]); 3157 } 3158 3159 v4l2_fwnode_endpoint_free(&bus_cfg); 3160 fwnode_handle_put(ep); 3161 3162 return 0; 3163 3164out_err: 3165 v4l2_fwnode_endpoint_free(&bus_cfg); 3166 fwnode_handle_put(ep); 3167 3168 return rval; 3169} 3170 3171static int ccs_firmware_name(struct i2c_client *client, 3172 struct ccs_sensor *sensor, char *filename, 3173 size_t filename_size, bool is_module) 3174{ 3175 const struct ccs_device *ccsdev = device_get_match_data(&client->dev); 3176 bool is_ccs = !(ccsdev->flags & CCS_DEVICE_FLAG_IS_SMIA); 3177 bool is_smiapp = sensor->minfo.smiapp_version; 3178 u16 manufacturer_id; 3179 u16 model_id; 3180 u16 revision_number; 3181 3182 /* 3183 * Old SMIA is module-agnostic. Its sensor identification is based on 3184 * what now are those of the module. 3185 */ 3186 if (is_module || (!is_ccs && !is_smiapp)) { 3187 manufacturer_id = is_ccs ? 3188 sensor->minfo.mipi_manufacturer_id : 3189 sensor->minfo.smia_manufacturer_id; 3190 model_id = sensor->minfo.model_id; 3191 revision_number = sensor->minfo.revision_number; 3192 } else { 3193 manufacturer_id = is_ccs ? 3194 sensor->minfo.sensor_mipi_manufacturer_id : 3195 sensor->minfo.sensor_smia_manufacturer_id; 3196 model_id = sensor->minfo.sensor_model_id; 3197 revision_number = sensor->minfo.sensor_revision_number; 3198 } 3199 3200 return snprintf(filename, filename_size, 3201 "ccs/%s-%s-%0*x-%4.4x-%0*x.fw", 3202 is_ccs ? "ccs" : is_smiapp ? "smiapp" : "smia", 3203 is_module || (!is_ccs && !is_smiapp) ? 3204 "module" : "sensor", 3205 is_ccs ? 4 : 2, manufacturer_id, model_id, 3206 !is_ccs && !is_module ? 2 : 4, revision_number); 3207} 3208 3209static int ccs_probe(struct i2c_client *client) 3210{ 3211 static struct lock_class_key pixel_array_lock_key, binner_lock_key, 3212 scaler_lock_key; 3213 const struct ccs_device *ccsdev = device_get_match_data(&client->dev); 3214 struct ccs_sensor *sensor; 3215 const struct firmware *fw; 3216 char filename[40]; 3217 unsigned int i; 3218 int rval; 3219 3220 sensor = devm_kzalloc(&client->dev, sizeof(*sensor), GFP_KERNEL); 3221 if (sensor == NULL) 3222 return -ENOMEM; 3223 3224 rval = ccs_get_hwconfig(sensor, &client->dev); 3225 if (rval) 3226 return rval; 3227 3228 sensor->src = &sensor->ssds[sensor->ssds_used]; 3229 3230 v4l2_i2c_subdev_init(&sensor->src->sd, client, &ccs_ops); 3231 sensor->src->sd.internal_ops = &ccs_internal_src_ops; 3232 3233 sensor->regulators = devm_kcalloc(&client->dev, 3234 ARRAY_SIZE(ccs_regulators), 3235 sizeof(*sensor->regulators), 3236 GFP_KERNEL); 3237 if (!sensor->regulators) 3238 return -ENOMEM; 3239 3240 for (i = 0; i < ARRAY_SIZE(ccs_regulators); i++) 3241 sensor->regulators[i].supply = ccs_regulators[i]; 3242 3243 rval = devm_regulator_bulk_get(&client->dev, ARRAY_SIZE(ccs_regulators), 3244 sensor->regulators); 3245 if (rval) { 3246 dev_err(&client->dev, "could not get regulators\n"); 3247 return rval; 3248 } 3249 3250 sensor->ext_clk = devm_clk_get(&client->dev, NULL); 3251 if (PTR_ERR(sensor->ext_clk) == -ENOENT) { 3252 dev_info(&client->dev, "no clock defined, continuing...\n"); 3253 sensor->ext_clk = NULL; 3254 } else if (IS_ERR(sensor->ext_clk)) { 3255 dev_err(&client->dev, "could not get clock (%ld)\n", 3256 PTR_ERR(sensor->ext_clk)); 3257 return -EPROBE_DEFER; 3258 } 3259 3260 if (sensor->ext_clk) { 3261 if (sensor->hwcfg.ext_clk) { 3262 unsigned long rate; 3263 3264 rval = clk_set_rate(sensor->ext_clk, 3265 sensor->hwcfg.ext_clk); 3266 if (rval < 0) { 3267 dev_err(&client->dev, 3268 "unable to set clock freq to %u\n", 3269 sensor->hwcfg.ext_clk); 3270 return rval; 3271 } 3272 3273 rate = clk_get_rate(sensor->ext_clk); 3274 if (rate != sensor->hwcfg.ext_clk) { 3275 dev_err(&client->dev, 3276 "can't set clock freq, asked for %u but got %lu\n", 3277 sensor->hwcfg.ext_clk, rate); 3278 return -EINVAL; 3279 } 3280 } else { 3281 sensor->hwcfg.ext_clk = clk_get_rate(sensor->ext_clk); 3282 dev_dbg(&client->dev, "obtained clock freq %u\n", 3283 sensor->hwcfg.ext_clk); 3284 } 3285 } else if (sensor->hwcfg.ext_clk) { 3286 dev_dbg(&client->dev, "assuming clock freq %u\n", 3287 sensor->hwcfg.ext_clk); 3288 } else { 3289 dev_err(&client->dev, "unable to obtain clock freq\n"); 3290 return -EINVAL; 3291 } 3292 3293 if (!sensor->hwcfg.ext_clk) { 3294 dev_err(&client->dev, "cannot work with xclk frequency 0\n"); 3295 return -EINVAL; 3296 } 3297 3298 sensor->reset = devm_gpiod_get_optional(&client->dev, "reset", 3299 GPIOD_OUT_HIGH); 3300 if (IS_ERR(sensor->reset)) 3301 return PTR_ERR(sensor->reset); 3302 /* Support old users that may have used "xshutdown" property. */ 3303 if (!sensor->reset) 3304 sensor->xshutdown = devm_gpiod_get_optional(&client->dev, 3305 "xshutdown", 3306 GPIOD_OUT_LOW); 3307 if (IS_ERR(sensor->xshutdown)) 3308 return PTR_ERR(sensor->xshutdown); 3309 3310 sensor->regmap = devm_cci_regmap_init_i2c(client, 16); 3311 if (IS_ERR(sensor->regmap)) { 3312 dev_err(&client->dev, "can't initialise CCI (%ld)\n", 3313 PTR_ERR(sensor->regmap)); 3314 return PTR_ERR(sensor->regmap); 3315 } 3316 3317 rval = ccs_power_on(&client->dev); 3318 if (rval < 0) 3319 return rval; 3320 3321 mutex_init(&sensor->mutex); 3322 3323 rval = ccs_identify_module(sensor); 3324 if (rval) { 3325 rval = -ENODEV; 3326 goto out_power_off; 3327 } 3328 3329 rval = ccs_firmware_name(client, sensor, filename, sizeof(filename), 3330 false); 3331 if (rval >= sizeof(filename)) { 3332 rval = -ENOMEM; 3333 goto out_power_off; 3334 } 3335 3336 rval = request_firmware(&fw, filename, &client->dev); 3337 if (!rval) { 3338 ccs_data_parse(&sensor->sdata, fw->data, fw->size, &client->dev, 3339 true); 3340 release_firmware(fw); 3341 } 3342 3343 if (!(ccsdev->flags & CCS_DEVICE_FLAG_IS_SMIA) || 3344 sensor->minfo.smiapp_version) { 3345 rval = ccs_firmware_name(client, sensor, filename, 3346 sizeof(filename), true); 3347 if (rval >= sizeof(filename)) { 3348 rval = -ENOMEM; 3349 goto out_release_sdata; 3350 } 3351 3352 rval = request_firmware(&fw, filename, &client->dev); 3353 if (!rval) { 3354 ccs_data_parse(&sensor->mdata, fw->data, fw->size, 3355 &client->dev, true); 3356 release_firmware(fw); 3357 } 3358 } 3359 3360 rval = ccs_read_all_limits(sensor); 3361 if (rval) 3362 goto out_release_mdata; 3363 3364 rval = ccs_read_frame_fmt(sensor); 3365 if (rval) { 3366 rval = -ENODEV; 3367 goto out_free_ccs_limits; 3368 } 3369 3370 rval = ccs_update_phy_ctrl(sensor); 3371 if (rval < 0) 3372 goto out_free_ccs_limits; 3373 3374 rval = ccs_call_quirk(sensor, limits); 3375 if (rval) { 3376 dev_err(&client->dev, "limits quirks failed\n"); 3377 goto out_free_ccs_limits; 3378 } 3379 3380 if (CCS_LIM(sensor, BINNING_CAPABILITY)) { 3381 sensor->nbinning_subtypes = 3382 min_t(u8, CCS_LIM(sensor, BINNING_SUB_TYPES), 3383 CCS_LIM_BINNING_SUB_TYPE_MAX_N); 3384 3385 for (i = 0; i < sensor->nbinning_subtypes; i++) { 3386 sensor->binning_subtypes[i].horizontal = 3387 CCS_LIM_AT(sensor, BINNING_SUB_TYPE, i) >> 3388 CCS_BINNING_SUB_TYPE_COLUMN_SHIFT; 3389 sensor->binning_subtypes[i].vertical = 3390 CCS_LIM_AT(sensor, BINNING_SUB_TYPE, i) & 3391 CCS_BINNING_SUB_TYPE_ROW_MASK; 3392 3393 dev_dbg(&client->dev, "binning %xx%x\n", 3394 sensor->binning_subtypes[i].horizontal, 3395 sensor->binning_subtypes[i].vertical); 3396 } 3397 } 3398 sensor->binning_horizontal = 1; 3399 sensor->binning_vertical = 1; 3400 3401 if (device_create_file(&client->dev, &dev_attr_ident) != 0) { 3402 dev_err(&client->dev, "sysfs ident entry creation failed\n"); 3403 rval = -ENOENT; 3404 goto out_free_ccs_limits; 3405 } 3406 3407 if (sensor->minfo.smiapp_version && 3408 CCS_LIM(sensor, DATA_TRANSFER_IF_CAPABILITY) & 3409 CCS_DATA_TRANSFER_IF_CAPABILITY_SUPPORTED) { 3410 if (device_create_file(&client->dev, &dev_attr_nvm) != 0) { 3411 dev_err(&client->dev, "sysfs nvm entry failed\n"); 3412 rval = -EBUSY; 3413 goto out_cleanup; 3414 } 3415 } 3416 3417 if (!CCS_LIM(sensor, MIN_OP_SYS_CLK_DIV) || 3418 !CCS_LIM(sensor, MAX_OP_SYS_CLK_DIV) || 3419 !CCS_LIM(sensor, MIN_OP_PIX_CLK_DIV) || 3420 !CCS_LIM(sensor, MAX_OP_PIX_CLK_DIV)) { 3421 /* No OP clock branch */ 3422 sensor->pll.flags |= CCS_PLL_FLAG_NO_OP_CLOCKS; 3423 } else if (CCS_LIM(sensor, SCALING_CAPABILITY) 3424 != CCS_SCALING_CAPABILITY_NONE || 3425 CCS_LIM(sensor, DIGITAL_CROP_CAPABILITY) 3426 == CCS_DIGITAL_CROP_CAPABILITY_INPUT_CROP) { 3427 /* We have a scaler or digital crop. */ 3428 sensor->scaler = &sensor->ssds[sensor->ssds_used]; 3429 sensor->ssds_used++; 3430 } 3431 sensor->binner = &sensor->ssds[sensor->ssds_used]; 3432 sensor->ssds_used++; 3433 sensor->pixel_array = &sensor->ssds[sensor->ssds_used]; 3434 sensor->ssds_used++; 3435 3436 sensor->scale_m = CCS_LIM(sensor, SCALER_N_MIN); 3437 3438 /* prepare PLL configuration input values */ 3439 sensor->pll.bus_type = CCS_PLL_BUS_TYPE_CSI2_DPHY; 3440 sensor->pll.csi2.lanes = sensor->hwcfg.lanes; 3441 if (CCS_LIM(sensor, CLOCK_CALCULATION) & 3442 CCS_CLOCK_CALCULATION_LANE_SPEED) { 3443 sensor->pll.flags |= CCS_PLL_FLAG_LANE_SPEED_MODEL; 3444 if (CCS_LIM(sensor, CLOCK_CALCULATION) & 3445 CCS_CLOCK_CALCULATION_LINK_DECOUPLED) { 3446 sensor->pll.vt_lanes = 3447 CCS_LIM(sensor, NUM_OF_VT_LANES) + 1; 3448 sensor->pll.op_lanes = 3449 CCS_LIM(sensor, NUM_OF_OP_LANES) + 1; 3450 sensor->pll.flags |= CCS_PLL_FLAG_LINK_DECOUPLED; 3451 } else { 3452 sensor->pll.vt_lanes = sensor->pll.csi2.lanes; 3453 sensor->pll.op_lanes = sensor->pll.csi2.lanes; 3454 } 3455 } 3456 if (CCS_LIM(sensor, CLOCK_TREE_PLL_CAPABILITY) & 3457 CCS_CLOCK_TREE_PLL_CAPABILITY_EXT_DIVIDER) 3458 sensor->pll.flags |= CCS_PLL_FLAG_EXT_IP_PLL_DIVIDER; 3459 if (CCS_LIM(sensor, CLOCK_TREE_PLL_CAPABILITY) & 3460 CCS_CLOCK_TREE_PLL_CAPABILITY_FLEXIBLE_OP_PIX_CLK_DIV) 3461 sensor->pll.flags |= CCS_PLL_FLAG_FLEXIBLE_OP_PIX_CLK_DIV; 3462 if (CCS_LIM(sensor, FIFO_SUPPORT_CAPABILITY) & 3463 CCS_FIFO_SUPPORT_CAPABILITY_DERATING) 3464 sensor->pll.flags |= CCS_PLL_FLAG_FIFO_DERATING; 3465 if (CCS_LIM(sensor, FIFO_SUPPORT_CAPABILITY) & 3466 CCS_FIFO_SUPPORT_CAPABILITY_DERATING_OVERRATING) 3467 sensor->pll.flags |= CCS_PLL_FLAG_FIFO_DERATING | 3468 CCS_PLL_FLAG_FIFO_OVERRATING; 3469 if (CCS_LIM(sensor, CLOCK_TREE_PLL_CAPABILITY) & 3470 CCS_CLOCK_TREE_PLL_CAPABILITY_DUAL_PLL) { 3471 if (CCS_LIM(sensor, CLOCK_TREE_PLL_CAPABILITY) & 3472 CCS_CLOCK_TREE_PLL_CAPABILITY_SINGLE_PLL) { 3473 u32 v; 3474 3475 /* Use sensor default in PLL mode selection */ 3476 rval = ccs_read(sensor, PLL_MODE, &v); 3477 if (rval) 3478 goto out_cleanup; 3479 3480 if (v == CCS_PLL_MODE_DUAL) 3481 sensor->pll.flags |= CCS_PLL_FLAG_DUAL_PLL; 3482 } else { 3483 sensor->pll.flags |= CCS_PLL_FLAG_DUAL_PLL; 3484 } 3485 if (CCS_LIM(sensor, CLOCK_CALCULATION) & 3486 CCS_CLOCK_CALCULATION_DUAL_PLL_OP_SYS_DDR) 3487 sensor->pll.flags |= CCS_PLL_FLAG_OP_SYS_DDR; 3488 if (CCS_LIM(sensor, CLOCK_CALCULATION) & 3489 CCS_CLOCK_CALCULATION_DUAL_PLL_OP_PIX_DDR) 3490 sensor->pll.flags |= CCS_PLL_FLAG_OP_PIX_DDR; 3491 } 3492 sensor->pll.op_bits_per_lane = CCS_LIM(sensor, OP_BITS_PER_LANE); 3493 sensor->pll.ext_clk_freq_hz = sensor->hwcfg.ext_clk; 3494 sensor->pll.scale_n = CCS_LIM(sensor, SCALER_N_MIN); 3495 3496 rval = ccs_get_mbus_formats(sensor); 3497 if (rval) { 3498 rval = -ENODEV; 3499 goto out_cleanup; 3500 } 3501 3502 rval = ccs_init_subdev(sensor, sensor->scaler, " scaler", 2, 3503 MEDIA_ENT_F_PROC_VIDEO_SCALER, 3504 "ccs scaler mutex", &scaler_lock_key); 3505 if (rval) 3506 goto out_cleanup; 3507 rval = ccs_init_subdev(sensor, sensor->binner, " binner", 2, 3508 MEDIA_ENT_F_PROC_VIDEO_SCALER, 3509 "ccs binner mutex", &binner_lock_key); 3510 if (rval) 3511 goto out_cleanup; 3512 rval = ccs_init_subdev(sensor, sensor->pixel_array, " pixel_array", 1, 3513 MEDIA_ENT_F_CAM_SENSOR, "ccs pixel array mutex", 3514 &pixel_array_lock_key); 3515 if (rval) 3516 goto out_cleanup; 3517 3518 rval = ccs_init_controls(sensor); 3519 if (rval < 0) 3520 goto out_cleanup; 3521 3522 rval = ccs_call_quirk(sensor, init); 3523 if (rval) 3524 goto out_cleanup; 3525 3526 rval = ccs_init_late_controls(sensor); 3527 if (rval) { 3528 rval = -ENODEV; 3529 goto out_cleanup; 3530 } 3531 3532 mutex_lock(&sensor->mutex); 3533 rval = ccs_pll_blanking_update(sensor); 3534 mutex_unlock(&sensor->mutex); 3535 if (rval) { 3536 dev_err(&client->dev, "update mode failed\n"); 3537 goto out_cleanup; 3538 } 3539 3540 sensor->streaming = false; 3541 sensor->dev_init_done = true; 3542 sensor->handler_setup_needed = true; 3543 3544 rval = ccs_write_msr_regs(sensor); 3545 if (rval) 3546 goto out_cleanup; 3547 3548 pm_runtime_set_active(&client->dev); 3549 pm_runtime_get_noresume(&client->dev); 3550 pm_runtime_enable(&client->dev); 3551 3552 rval = v4l2_async_register_subdev_sensor(&sensor->src->sd); 3553 if (rval < 0) 3554 goto out_disable_runtime_pm; 3555 3556 pm_runtime_set_autosuspend_delay(&client->dev, 1000); 3557 pm_runtime_use_autosuspend(&client->dev); 3558 pm_runtime_put_autosuspend(&client->dev); 3559 3560 return 0; 3561 3562out_disable_runtime_pm: 3563 pm_runtime_put_noidle(&client->dev); 3564 pm_runtime_disable(&client->dev); 3565 3566out_cleanup: 3567 ccs_cleanup(sensor); 3568 3569out_release_mdata: 3570 kvfree(sensor->mdata.backing); 3571 3572out_release_sdata: 3573 kvfree(sensor->sdata.backing); 3574 3575out_free_ccs_limits: 3576 kfree(sensor->ccs_limits); 3577 3578out_power_off: 3579 ccs_power_off(&client->dev); 3580 mutex_destroy(&sensor->mutex); 3581 3582 return rval; 3583} 3584 3585static void ccs_remove(struct i2c_client *client) 3586{ 3587 struct v4l2_subdev *subdev = i2c_get_clientdata(client); 3588 struct ccs_sensor *sensor = to_ccs_sensor(subdev); 3589 unsigned int i; 3590 3591 v4l2_async_unregister_subdev(subdev); 3592 3593 pm_runtime_disable(&client->dev); 3594 if (!pm_runtime_status_suspended(&client->dev)) 3595 ccs_power_off(&client->dev); 3596 pm_runtime_set_suspended(&client->dev); 3597 3598 for (i = 0; i < sensor->ssds_used; i++) 3599 v4l2_device_unregister_subdev(&sensor->ssds[i].sd); 3600 ccs_cleanup(sensor); 3601 mutex_destroy(&sensor->mutex); 3602 kfree(sensor->ccs_limits); 3603 kvfree(sensor->sdata.backing); 3604 kvfree(sensor->mdata.backing); 3605} 3606 3607static const struct ccs_device smia_device = { 3608 .flags = CCS_DEVICE_FLAG_IS_SMIA, 3609}; 3610 3611static const struct ccs_device ccs_device = {}; 3612 3613static const struct acpi_device_id ccs_acpi_table[] = { 3614 { .id = "MIPI0200", .driver_data = (unsigned long)&ccs_device }, 3615 { }, 3616}; 3617MODULE_DEVICE_TABLE(acpi, ccs_acpi_table); 3618 3619static const struct of_device_id ccs_of_table[] = { 3620 { .compatible = "mipi-ccs-1.1", .data = &ccs_device }, 3621 { .compatible = "mipi-ccs-1.0", .data = &ccs_device }, 3622 { .compatible = "mipi-ccs", .data = &ccs_device }, 3623 { .compatible = "nokia,smia", .data = &smia_device }, 3624 { }, 3625}; 3626MODULE_DEVICE_TABLE(of, ccs_of_table); 3627 3628static const struct dev_pm_ops ccs_pm_ops = { 3629 SET_RUNTIME_PM_OPS(ccs_power_off, ccs_power_on, NULL) 3630}; 3631 3632static struct i2c_driver ccs_i2c_driver = { 3633 .driver = { 3634 .acpi_match_table = ccs_acpi_table, 3635 .of_match_table = ccs_of_table, 3636 .name = CCS_NAME, 3637 .pm = &ccs_pm_ops, 3638 }, 3639 .probe = ccs_probe, 3640 .remove = ccs_remove, 3641}; 3642 3643static int ccs_module_init(void) 3644{ 3645 unsigned int i, l; 3646 3647 CCS_BUILD_BUG; 3648 3649 for (i = 0, l = 0; ccs_limits[i].size && l < CCS_L_LAST; i++) { 3650 if (!(ccs_limits[i].flags & CCS_L_FL_SAME_REG)) { 3651 ccs_limit_offsets[l + 1].lim = 3652 ALIGN(ccs_limit_offsets[l].lim + 3653 ccs_limits[i].size, 3654 ccs_limits[i + 1].reg ? 3655 CCI_REG_WIDTH_BYTES(ccs_limits[i + 1].reg) : 3656 1U); 3657 ccs_limit_offsets[l].info = i; 3658 l++; 3659 } else { 3660 ccs_limit_offsets[l].lim += ccs_limits[i].size; 3661 } 3662 } 3663 3664 if (WARN_ON(ccs_limits[i].size)) 3665 return -EINVAL; 3666 3667 if (WARN_ON(l != CCS_L_LAST)) 3668 return -EINVAL; 3669 3670 return i2c_register_driver(THIS_MODULE, &ccs_i2c_driver); 3671} 3672 3673static void ccs_module_cleanup(void) 3674{ 3675 i2c_del_driver(&ccs_i2c_driver); 3676} 3677 3678module_init(ccs_module_init); 3679module_exit(ccs_module_cleanup); 3680 3681MODULE_AUTHOR("Sakari Ailus <sakari.ailus@linux.intel.com>"); 3682MODULE_DESCRIPTION("Generic MIPI CCS/SMIA/SMIA++ camera sensor driver"); 3683MODULE_LICENSE("GPL v2"); 3684MODULE_ALIAS("smiapp"); 3685