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) 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); 29 } 30 31 static void iris_v4l2_fh_deinit(struct iris_inst *inst) 32 { 33 v4l2_fh_del(&inst->fh); 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, void *fh) 71 { 72 return container_of(filp->private_data, 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); 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 filp->private_data = &inst->fh; 189 190 return 0; 191 192 fail_m2m_ctx_release: 193 v4l2_m2m_ctx_release(inst->m2m_ctx); 194 fail_m2m_release: 195 v4l2_m2m_release(inst->m2m_dev); 196 fail_v4l2_fh_deinit: 197 iris_v4l2_fh_deinit(inst); 198 mutex_destroy(&inst->ctx_q_lock); 199 mutex_destroy(&inst->lock); 200 kfree(inst); 201 202 return ret; 203 } 204 205 static void iris_session_close(struct iris_inst *inst) 206 { 207 const struct iris_hfi_command_ops *hfi_ops = inst->core->hfi_ops; 208 bool wait_for_response = true; 209 int ret; 210 211 if (inst->state == IRIS_INST_DEINIT) 212 return; 213 214 reinit_completion(&inst->completion); 215 216 ret = hfi_ops->session_close(inst); 217 if (ret) 218 wait_for_response = false; 219 220 if (wait_for_response) 221 iris_wait_for_session_response(inst, false); 222 } 223 224 int iris_close(struct file *filp) 225 { 226 struct iris_inst *inst = iris_get_inst(filp, NULL); 227 228 v4l2_ctrl_handler_free(&inst->ctrl_handler); 229 v4l2_m2m_ctx_release(inst->m2m_ctx); 230 v4l2_m2m_release(inst->m2m_dev); 231 mutex_lock(&inst->lock); 232 iris_vdec_inst_deinit(inst); 233 iris_session_close(inst); 234 iris_inst_change_state(inst, IRIS_INST_DEINIT); 235 iris_v4l2_fh_deinit(inst); 236 iris_destroy_internal_buffers(inst, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE); 237 iris_destroy_internal_buffers(inst, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); 238 iris_remove_session(inst); 239 mutex_unlock(&inst->lock); 240 mutex_destroy(&inst->ctx_q_lock); 241 mutex_destroy(&inst->lock); 242 kfree(inst); 243 filp->private_data = NULL; 244 245 return 0; 246 } 247 248 static int iris_enum_fmt(struct file *filp, void *fh, struct v4l2_fmtdesc *f) 249 { 250 struct iris_inst *inst = iris_get_inst(filp, NULL); 251 252 if (f->index) 253 return -EINVAL; 254 255 return iris_vdec_enum_fmt(inst, f); 256 } 257 258 static int iris_try_fmt_vid_mplane(struct file *filp, void *fh, struct v4l2_format *f) 259 { 260 struct iris_inst *inst = iris_get_inst(filp, NULL); 261 int ret; 262 263 mutex_lock(&inst->lock); 264 ret = iris_vdec_try_fmt(inst, f); 265 mutex_unlock(&inst->lock); 266 267 return ret; 268 } 269 270 static int iris_s_fmt_vid_mplane(struct file *filp, void *fh, struct v4l2_format *f) 271 { 272 struct iris_inst *inst = iris_get_inst(filp, NULL); 273 int ret; 274 275 mutex_lock(&inst->lock); 276 ret = iris_vdec_s_fmt(inst, f); 277 mutex_unlock(&inst->lock); 278 279 return ret; 280 } 281 282 static int iris_g_fmt_vid_mplane(struct file *filp, void *fh, struct v4l2_format *f) 283 { 284 struct iris_inst *inst = iris_get_inst(filp, NULL); 285 int ret = 0; 286 287 mutex_lock(&inst->lock); 288 if (V4L2_TYPE_IS_OUTPUT(f->type)) 289 *f = *inst->fmt_src; 290 else if (V4L2_TYPE_IS_CAPTURE(f->type)) 291 *f = *inst->fmt_dst; 292 else 293 ret = -EINVAL; 294 295 mutex_unlock(&inst->lock); 296 297 return ret; 298 } 299 300 static int iris_enum_framesizes(struct file *filp, void *fh, 301 struct v4l2_frmsizeenum *fsize) 302 { 303 struct iris_inst *inst = iris_get_inst(filp, NULL); 304 struct platform_inst_caps *caps; 305 306 if (fsize->index) 307 return -EINVAL; 308 309 if (fsize->pixel_format != V4L2_PIX_FMT_H264 && 310 fsize->pixel_format != V4L2_PIX_FMT_NV12) 311 return -EINVAL; 312 313 caps = inst->core->iris_platform_data->inst_caps; 314 315 fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; 316 fsize->stepwise.min_width = caps->min_frame_width; 317 fsize->stepwise.max_width = caps->max_frame_width; 318 fsize->stepwise.step_width = STEP_WIDTH; 319 fsize->stepwise.min_height = caps->min_frame_height; 320 fsize->stepwise.max_height = caps->max_frame_height; 321 fsize->stepwise.step_height = STEP_HEIGHT; 322 323 return 0; 324 } 325 326 static int iris_querycap(struct file *filp, void *fh, struct v4l2_capability *cap) 327 { 328 strscpy(cap->driver, IRIS_DRV_NAME, sizeof(cap->driver)); 329 strscpy(cap->card, "Iris Decoder", sizeof(cap->card)); 330 331 return 0; 332 } 333 334 static int iris_g_selection(struct file *filp, void *fh, struct v4l2_selection *s) 335 { 336 struct iris_inst *inst = iris_get_inst(filp, NULL); 337 338 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) 339 return -EINVAL; 340 341 switch (s->target) { 342 case V4L2_SEL_TGT_CROP_BOUNDS: 343 case V4L2_SEL_TGT_CROP_DEFAULT: 344 case V4L2_SEL_TGT_CROP: 345 case V4L2_SEL_TGT_COMPOSE_BOUNDS: 346 case V4L2_SEL_TGT_COMPOSE_PADDED: 347 case V4L2_SEL_TGT_COMPOSE_DEFAULT: 348 case V4L2_SEL_TGT_COMPOSE: 349 s->r.left = inst->crop.left; 350 s->r.top = inst->crop.top; 351 s->r.width = inst->crop.width; 352 s->r.height = inst->crop.height; 353 break; 354 default: 355 return -EINVAL; 356 } 357 358 return 0; 359 } 360 361 static int iris_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub) 362 { 363 struct iris_inst *inst = container_of(fh, struct iris_inst, fh); 364 365 return iris_vdec_subscribe_event(inst, sub); 366 } 367 368 static int iris_dec_cmd(struct file *filp, void *fh, 369 struct v4l2_decoder_cmd *dec) 370 { 371 struct iris_inst *inst = iris_get_inst(filp, NULL); 372 int ret = 0; 373 374 mutex_lock(&inst->lock); 375 376 ret = v4l2_m2m_ioctl_decoder_cmd(filp, fh, dec); 377 if (ret) 378 goto unlock; 379 380 if (inst->state == IRIS_INST_DEINIT) 381 goto unlock; 382 383 if (!iris_allow_cmd(inst, dec->cmd)) { 384 ret = -EBUSY; 385 goto unlock; 386 } 387 388 if (dec->cmd == V4L2_DEC_CMD_START) 389 ret = iris_vdec_start_cmd(inst); 390 else if (dec->cmd == V4L2_DEC_CMD_STOP) 391 ret = iris_vdec_stop_cmd(inst); 392 else 393 ret = -EINVAL; 394 395 unlock: 396 mutex_unlock(&inst->lock); 397 398 return ret; 399 } 400 401 static struct v4l2_file_operations iris_v4l2_file_ops = { 402 .owner = THIS_MODULE, 403 .open = iris_open, 404 .release = iris_close, 405 .unlocked_ioctl = video_ioctl2, 406 .poll = v4l2_m2m_fop_poll, 407 .mmap = v4l2_m2m_fop_mmap, 408 }; 409 410 static const struct vb2_ops iris_vb2_ops = { 411 .buf_init = iris_vb2_buf_init, 412 .queue_setup = iris_vb2_queue_setup, 413 .start_streaming = iris_vb2_start_streaming, 414 .stop_streaming = iris_vb2_stop_streaming, 415 .buf_prepare = iris_vb2_buf_prepare, 416 .buf_out_validate = iris_vb2_buf_out_validate, 417 .buf_queue = iris_vb2_buf_queue, 418 }; 419 420 static const struct v4l2_ioctl_ops iris_v4l2_ioctl_ops = { 421 .vidioc_enum_fmt_vid_cap = iris_enum_fmt, 422 .vidioc_enum_fmt_vid_out = iris_enum_fmt, 423 .vidioc_try_fmt_vid_cap_mplane = iris_try_fmt_vid_mplane, 424 .vidioc_try_fmt_vid_out_mplane = iris_try_fmt_vid_mplane, 425 .vidioc_s_fmt_vid_cap_mplane = iris_s_fmt_vid_mplane, 426 .vidioc_s_fmt_vid_out_mplane = iris_s_fmt_vid_mplane, 427 .vidioc_g_fmt_vid_cap_mplane = iris_g_fmt_vid_mplane, 428 .vidioc_g_fmt_vid_out_mplane = iris_g_fmt_vid_mplane, 429 .vidioc_enum_framesizes = iris_enum_framesizes, 430 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, 431 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, 432 .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, 433 .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, 434 .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, 435 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, 436 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, 437 .vidioc_remove_bufs = v4l2_m2m_ioctl_remove_bufs, 438 .vidioc_querycap = iris_querycap, 439 .vidioc_g_selection = iris_g_selection, 440 .vidioc_subscribe_event = iris_subscribe_event, 441 .vidioc_unsubscribe_event = v4l2_event_unsubscribe, 442 .vidioc_streamon = v4l2_m2m_ioctl_streamon, 443 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, 444 .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd, 445 .vidioc_decoder_cmd = iris_dec_cmd, 446 }; 447 448 void iris_init_ops(struct iris_core *core) 449 { 450 core->iris_v4l2_file_ops = &iris_v4l2_file_ops; 451 core->iris_vb2_ops = &iris_vb2_ops; 452 core->iris_v4l2_ioctl_ops = &iris_v4l2_ioctl_ops; 453 } 454