1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved. 4 */ 5 6 #include <linux/pm_runtime.h> 7 #include <media/v4l2-event.h> 8 #include <media/v4l2-ioctl.h> 9 #include <media/v4l2-mem2mem.h> 10 #include <media/videobuf2-dma-contig.h> 11 12 #include "iris_vidc.h" 13 #include "iris_instance.h" 14 #include "iris_vdec.h" 15 #include "iris_vb2.h" 16 #include "iris_vpu_buffer.h" 17 #include "iris_platform_common.h" 18 19 #define IRIS_DRV_NAME "iris_driver" 20 #define IRIS_BUS_NAME "platform:iris_icc" 21 #define STEP_WIDTH 1 22 #define STEP_HEIGHT 1 23 24 static void iris_v4l2_fh_init(struct iris_inst *inst, struct file *filp) 25 { 26 v4l2_fh_init(&inst->fh, inst->core->vdev_dec); 27 inst->fh.ctrl_handler = &inst->ctrl_handler; 28 v4l2_fh_add(&inst->fh, filp); 29 } 30 31 static void iris_v4l2_fh_deinit(struct iris_inst *inst, struct file *filp) 32 { 33 v4l2_fh_del(&inst->fh, filp); 34 inst->fh.ctrl_handler = NULL; 35 v4l2_fh_exit(&inst->fh); 36 } 37 38 static void iris_add_session(struct iris_inst *inst) 39 { 40 struct iris_core *core = inst->core; 41 struct iris_inst *iter; 42 u32 count = 0; 43 44 mutex_lock(&core->lock); 45 46 list_for_each_entry(iter, &core->instances, list) 47 count++; 48 49 if (count < core->iris_platform_data->max_session_count) 50 list_add_tail(&inst->list, &core->instances); 51 52 mutex_unlock(&core->lock); 53 } 54 55 static void iris_remove_session(struct iris_inst *inst) 56 { 57 struct iris_core *core = inst->core; 58 struct iris_inst *iter, *temp; 59 60 mutex_lock(&core->lock); 61 list_for_each_entry_safe(iter, temp, &core->instances, list) { 62 if (iter->session_id == inst->session_id) { 63 list_del_init(&iter->list); 64 break; 65 } 66 } 67 mutex_unlock(&core->lock); 68 } 69 70 static inline struct iris_inst *iris_get_inst(struct file *filp) 71 { 72 return container_of(file_to_v4l2_fh(filp), struct iris_inst, fh); 73 } 74 75 static void iris_m2m_device_run(void *priv) 76 { 77 } 78 79 static void iris_m2m_job_abort(void *priv) 80 { 81 struct iris_inst *inst = priv; 82 struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx; 83 84 v4l2_m2m_job_finish(inst->m2m_dev, m2m_ctx); 85 } 86 87 static const struct v4l2_m2m_ops iris_m2m_ops = { 88 .device_run = iris_m2m_device_run, 89 .job_abort = iris_m2m_job_abort, 90 }; 91 92 static int 93 iris_m2m_queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq) 94 { 95 struct iris_inst *inst = priv; 96 int ret; 97 98 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; 99 src_vq->io_modes = VB2_MMAP | VB2_DMABUF; 100 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 101 src_vq->ops = inst->core->iris_vb2_ops; 102 src_vq->mem_ops = &vb2_dma_contig_memops; 103 src_vq->drv_priv = inst; 104 src_vq->buf_struct_size = sizeof(struct iris_buffer); 105 src_vq->min_reqbufs_allocation = MIN_BUFFERS; 106 src_vq->dev = inst->core->dev; 107 src_vq->lock = &inst->ctx_q_lock; 108 ret = vb2_queue_init(src_vq); 109 if (ret) 110 return ret; 111 112 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; 113 dst_vq->io_modes = VB2_MMAP | VB2_DMABUF; 114 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; 115 dst_vq->ops = inst->core->iris_vb2_ops; 116 dst_vq->mem_ops = &vb2_dma_contig_memops; 117 dst_vq->drv_priv = inst; 118 dst_vq->buf_struct_size = sizeof(struct iris_buffer); 119 dst_vq->min_reqbufs_allocation = MIN_BUFFERS; 120 dst_vq->dev = inst->core->dev; 121 dst_vq->lock = &inst->ctx_q_lock; 122 123 return vb2_queue_init(dst_vq); 124 } 125 126 int iris_open(struct file *filp) 127 { 128 struct iris_core *core = video_drvdata(filp); 129 struct iris_inst *inst; 130 int ret; 131 132 ret = pm_runtime_resume_and_get(core->dev); 133 if (ret < 0) 134 return ret; 135 136 ret = iris_core_init(core); 137 if (ret) { 138 dev_err(core->dev, "core init failed\n"); 139 pm_runtime_put_sync(core->dev); 140 return ret; 141 } 142 143 pm_runtime_put_sync(core->dev); 144 145 inst = core->iris_platform_data->get_instance(); 146 if (!inst) 147 return -ENOMEM; 148 149 inst->core = core; 150 inst->session_id = hash32_ptr(inst); 151 inst->state = IRIS_INST_DEINIT; 152 153 mutex_init(&inst->lock); 154 mutex_init(&inst->ctx_q_lock); 155 156 INIT_LIST_HEAD(&inst->buffers[BUF_BIN].list); 157 INIT_LIST_HEAD(&inst->buffers[BUF_ARP].list); 158 INIT_LIST_HEAD(&inst->buffers[BUF_COMV].list); 159 INIT_LIST_HEAD(&inst->buffers[BUF_NON_COMV].list); 160 INIT_LIST_HEAD(&inst->buffers[BUF_LINE].list); 161 INIT_LIST_HEAD(&inst->buffers[BUF_DPB].list); 162 INIT_LIST_HEAD(&inst->buffers[BUF_PERSIST].list); 163 INIT_LIST_HEAD(&inst->buffers[BUF_SCRATCH_1].list); 164 init_completion(&inst->completion); 165 init_completion(&inst->flush_completion); 166 167 iris_v4l2_fh_init(inst, filp); 168 169 inst->m2m_dev = v4l2_m2m_init(&iris_m2m_ops); 170 if (IS_ERR_OR_NULL(inst->m2m_dev)) { 171 ret = -EINVAL; 172 goto fail_v4l2_fh_deinit; 173 } 174 175 inst->m2m_ctx = v4l2_m2m_ctx_init(inst->m2m_dev, inst, iris_m2m_queue_init); 176 if (IS_ERR_OR_NULL(inst->m2m_ctx)) { 177 ret = -EINVAL; 178 goto fail_m2m_release; 179 } 180 181 ret = iris_vdec_inst_init(inst); 182 if (ret) 183 goto fail_m2m_ctx_release; 184 185 iris_add_session(inst); 186 187 inst->fh.m2m_ctx = inst->m2m_ctx; 188 189 return 0; 190 191 fail_m2m_ctx_release: 192 v4l2_m2m_ctx_release(inst->m2m_ctx); 193 fail_m2m_release: 194 v4l2_m2m_release(inst->m2m_dev); 195 fail_v4l2_fh_deinit: 196 iris_v4l2_fh_deinit(inst, filp); 197 mutex_destroy(&inst->ctx_q_lock); 198 mutex_destroy(&inst->lock); 199 kfree(inst); 200 201 return ret; 202 } 203 204 static void iris_session_close(struct iris_inst *inst) 205 { 206 const struct iris_hfi_command_ops *hfi_ops = inst->core->hfi_ops; 207 bool wait_for_response = true; 208 int ret; 209 210 if (inst->state == IRIS_INST_DEINIT) 211 return; 212 213 reinit_completion(&inst->completion); 214 215 ret = hfi_ops->session_close(inst); 216 if (ret) 217 wait_for_response = false; 218 219 if (wait_for_response) 220 iris_wait_for_session_response(inst, false); 221 } 222 223 static void iris_check_num_queued_internal_buffers(struct iris_inst *inst, u32 plane) 224 { 225 const struct iris_platform_data *platform_data = inst->core->iris_platform_data; 226 struct iris_buffer *buf, *next; 227 struct iris_buffers *buffers; 228 const u32 *internal_buf_type; 229 u32 internal_buffer_count, i; 230 u32 count = 0; 231 232 if (V4L2_TYPE_IS_OUTPUT(plane)) { 233 internal_buf_type = platform_data->dec_ip_int_buf_tbl; 234 internal_buffer_count = platform_data->dec_ip_int_buf_tbl_size; 235 } else { 236 internal_buf_type = platform_data->dec_op_int_buf_tbl; 237 internal_buffer_count = platform_data->dec_op_int_buf_tbl_size; 238 } 239 240 for (i = 0; i < internal_buffer_count; i++) { 241 buffers = &inst->buffers[internal_buf_type[i]]; 242 list_for_each_entry_safe(buf, next, &buffers->list, list) 243 count++; 244 if (count) 245 dev_err(inst->core->dev, "%d buffer of type %d not released", 246 count, internal_buf_type[i]); 247 } 248 } 249 250 int iris_close(struct file *filp) 251 { 252 struct iris_inst *inst = iris_get_inst(filp); 253 254 v4l2_ctrl_handler_free(&inst->ctrl_handler); 255 v4l2_m2m_ctx_release(inst->m2m_ctx); 256 v4l2_m2m_release(inst->m2m_dev); 257 mutex_lock(&inst->lock); 258 iris_vdec_inst_deinit(inst); 259 iris_session_close(inst); 260 iris_inst_change_state(inst, IRIS_INST_DEINIT); 261 iris_v4l2_fh_deinit(inst, filp); 262 iris_destroy_all_internal_buffers(inst, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); 263 iris_destroy_all_internal_buffers(inst, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); 264 iris_check_num_queued_internal_buffers(inst, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); 265 iris_check_num_queued_internal_buffers(inst, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); 266 iris_remove_session(inst); 267 mutex_unlock(&inst->lock); 268 mutex_destroy(&inst->ctx_q_lock); 269 mutex_destroy(&inst->lock); 270 kfree(inst); 271 272 return 0; 273 } 274 275 static int iris_enum_fmt(struct file *filp, void *fh, struct v4l2_fmtdesc *f) 276 { 277 struct iris_inst *inst = iris_get_inst(filp); 278 279 return iris_vdec_enum_fmt(inst, f); 280 } 281 282 static int iris_try_fmt_vid_mplane(struct file *filp, void *fh, struct v4l2_format *f) 283 { 284 struct iris_inst *inst = iris_get_inst(filp); 285 int ret; 286 287 mutex_lock(&inst->lock); 288 ret = iris_vdec_try_fmt(inst, f); 289 mutex_unlock(&inst->lock); 290 291 return ret; 292 } 293 294 static int iris_s_fmt_vid_mplane(struct file *filp, void *fh, struct v4l2_format *f) 295 { 296 struct iris_inst *inst = iris_get_inst(filp); 297 int ret; 298 299 mutex_lock(&inst->lock); 300 ret = iris_vdec_s_fmt(inst, f); 301 mutex_unlock(&inst->lock); 302 303 return ret; 304 } 305 306 static int iris_g_fmt_vid_mplane(struct file *filp, void *fh, struct v4l2_format *f) 307 { 308 struct iris_inst *inst = iris_get_inst(filp); 309 int ret = 0; 310 311 mutex_lock(&inst->lock); 312 if (V4L2_TYPE_IS_OUTPUT(f->type)) 313 *f = *inst->fmt_src; 314 else if (V4L2_TYPE_IS_CAPTURE(f->type)) 315 *f = *inst->fmt_dst; 316 else 317 ret = -EINVAL; 318 319 mutex_unlock(&inst->lock); 320 321 return ret; 322 } 323 324 static int iris_enum_framesizes(struct file *filp, void *fh, 325 struct v4l2_frmsizeenum *fsize) 326 { 327 struct iris_inst *inst = iris_get_inst(filp); 328 struct platform_inst_caps *caps; 329 330 if (fsize->index) 331 return -EINVAL; 332 333 if (fsize->pixel_format != V4L2_PIX_FMT_H264 && 334 fsize->pixel_format != V4L2_PIX_FMT_NV12) 335 return -EINVAL; 336 337 caps = inst->core->iris_platform_data->inst_caps; 338 339 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; 340 fsize->stepwise.min_width = caps->min_frame_width; 341 fsize->stepwise.max_width = caps->max_frame_width; 342 fsize->stepwise.step_width = STEP_WIDTH; 343 fsize->stepwise.min_height = caps->min_frame_height; 344 fsize->stepwise.max_height = caps->max_frame_height; 345 fsize->stepwise.step_height = STEP_HEIGHT; 346 347 return 0; 348 } 349 350 static int iris_querycap(struct file *filp, void *fh, struct v4l2_capability *cap) 351 { 352 strscpy(cap->driver, IRIS_DRV_NAME, sizeof(cap->driver)); 353 strscpy(cap->card, "Iris Decoder", sizeof(cap->card)); 354 355 return 0; 356 } 357 358 static int iris_g_selection(struct file *filp, void *fh, struct v4l2_selection *s) 359 { 360 struct iris_inst *inst = iris_get_inst(filp); 361 362 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 363 return -EINVAL; 364 365 switch (s->target) { 366 case V4L2_SEL_TGT_CROP_BOUNDS: 367 case V4L2_SEL_TGT_CROP_DEFAULT: 368 case V4L2_SEL_TGT_CROP: 369 case V4L2_SEL_TGT_COMPOSE_BOUNDS: 370 case V4L2_SEL_TGT_COMPOSE_PADDED: 371 case V4L2_SEL_TGT_COMPOSE_DEFAULT: 372 case V4L2_SEL_TGT_COMPOSE: 373 s->r.left = inst->crop.left; 374 s->r.top = inst->crop.top; 375 s->r.width = inst->crop.width; 376 s->r.height = inst->crop.height; 377 break; 378 default: 379 return -EINVAL; 380 } 381 382 return 0; 383 } 384 385 static int iris_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub) 386 { 387 struct iris_inst *inst = container_of(fh, struct iris_inst, fh); 388 389 return iris_vdec_subscribe_event(inst, sub); 390 } 391 392 static int iris_dec_cmd(struct file *filp, void *fh, 393 struct v4l2_decoder_cmd *dec) 394 { 395 struct iris_inst *inst = iris_get_inst(filp); 396 int ret = 0; 397 398 mutex_lock(&inst->lock); 399 400 ret = v4l2_m2m_ioctl_decoder_cmd(filp, fh, dec); 401 if (ret) 402 goto unlock; 403 404 if (inst->state == IRIS_INST_DEINIT) 405 goto unlock; 406 407 if (!iris_allow_cmd(inst, dec->cmd)) { 408 ret = -EBUSY; 409 goto unlock; 410 } 411 412 if (dec->cmd == V4L2_DEC_CMD_START) 413 ret = iris_vdec_start_cmd(inst); 414 else if (dec->cmd == V4L2_DEC_CMD_STOP) 415 ret = iris_vdec_stop_cmd(inst); 416 else 417 ret = -EINVAL; 418 419 unlock: 420 mutex_unlock(&inst->lock); 421 422 return ret; 423 } 424 425 static struct v4l2_file_operations iris_v4l2_file_ops = { 426 .owner = THIS_MODULE, 427 .open = iris_open, 428 .release = iris_close, 429 .unlocked_ioctl = video_ioctl2, 430 .poll = v4l2_m2m_fop_poll, 431 .mmap = v4l2_m2m_fop_mmap, 432 }; 433 434 static const struct vb2_ops iris_vb2_ops = { 435 .buf_init = iris_vb2_buf_init, 436 .queue_setup = iris_vb2_queue_setup, 437 .start_streaming = iris_vb2_start_streaming, 438 .stop_streaming = iris_vb2_stop_streaming, 439 .buf_prepare = iris_vb2_buf_prepare, 440 .buf_out_validate = iris_vb2_buf_out_validate, 441 .buf_queue = iris_vb2_buf_queue, 442 }; 443 444 static const struct v4l2_ioctl_ops iris_v4l2_ioctl_ops = { 445 .vidioc_enum_fmt_vid_cap = iris_enum_fmt, 446 .vidioc_enum_fmt_vid_out = iris_enum_fmt, 447 .vidioc_try_fmt_vid_cap_mplane = iris_try_fmt_vid_mplane, 448 .vidioc_try_fmt_vid_out_mplane = iris_try_fmt_vid_mplane, 449 .vidioc_s_fmt_vid_cap_mplane = iris_s_fmt_vid_mplane, 450 .vidioc_s_fmt_vid_out_mplane = iris_s_fmt_vid_mplane, 451 .vidioc_g_fmt_vid_cap_mplane = iris_g_fmt_vid_mplane, 452 .vidioc_g_fmt_vid_out_mplane = iris_g_fmt_vid_mplane, 453 .vidioc_enum_framesizes = iris_enum_framesizes, 454 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, 455 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, 456 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, 457 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, 458 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, 459 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, 460 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, 461 .vidioc_remove_bufs = v4l2_m2m_ioctl_remove_bufs, 462 .vidioc_querycap = iris_querycap, 463 .vidioc_g_selection = iris_g_selection, 464 .vidioc_subscribe_event = iris_subscribe_event, 465 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 466 .vidioc_streamon = v4l2_m2m_ioctl_streamon, 467 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, 468 .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd, 469 .vidioc_decoder_cmd = iris_dec_cmd, 470 }; 471 472 void iris_init_ops(struct iris_core *core) 473 { 474 core->iris_v4l2_file_ops = &iris_v4l2_file_ops; 475 core->iris_vb2_ops = &iris_vb2_ops; 476 core->iris_v4l2_ioctl_ops = &iris_v4l2_ioctl_ops; 477 } 478