diff options
Diffstat (limited to 'drivers/media/platform/vicodec/vicodec-core.c')
| -rw-r--r-- | drivers/media/platform/vicodec/vicodec-core.c | 2238 |
1 files changed, 0 insertions, 2238 deletions
diff --git a/drivers/media/platform/vicodec/vicodec-core.c b/drivers/media/platform/vicodec/vicodec-core.c deleted file mode 100644 index 30ced1c21387..000000000000 --- a/drivers/media/platform/vicodec/vicodec-core.c +++ /dev/null @@ -1,2238 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * A virtual codec example device. - * - * Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved. - * - * This is a virtual codec device driver for testing the codec framework. - * It simulates a device that uses memory buffers for both source and - * destination and encodes or decodes the data. - */ - -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/fs.h> -#include <linux/sched.h> -#include <linux/slab.h> - -#include <linux/platform_device.h> -#include <media/v4l2-mem2mem.h> -#include <media/v4l2-device.h> -#include <media/v4l2-ioctl.h> -#include <media/v4l2-ctrls.h> -#include <media/v4l2-event.h> -#include <media/videobuf2-vmalloc.h> - -#include "codec-v4l2-fwht.h" - -MODULE_DESCRIPTION("Virtual codec device"); -MODULE_AUTHOR("Hans Verkuil <hans.verkuil@cisco.com>"); -MODULE_LICENSE("GPL v2"); - -static bool multiplanar; -module_param(multiplanar, bool, 0444); -MODULE_PARM_DESC(multiplanar, - " use multi-planar API instead of single-planar API"); - -static unsigned int debug; -module_param(debug, uint, 0644); -MODULE_PARM_DESC(debug, " activates debug info"); - -#define VICODEC_NAME "vicodec" -#define MAX_WIDTH 4096U -#define MIN_WIDTH 640U -#define MAX_HEIGHT 2160U -#define MIN_HEIGHT 360U - -#define dprintk(dev, fmt, arg...) \ - v4l2_dbg(1, debug, &dev->v4l2_dev, "%s: " fmt, __func__, ## arg) - - -struct pixfmt_info { - u32 id; - unsigned int bytesperline_mult; - unsigned int sizeimage_mult; - unsigned int sizeimage_div; - unsigned int luma_step; - unsigned int chroma_step; - /* Chroma plane subsampling */ - unsigned int width_div; - unsigned int height_div; -}; - -static const struct v4l2_fwht_pixfmt_info pixfmt_fwht = { - V4L2_PIX_FMT_FWHT, 0, 3, 1, 1, 1, 1, 1, 0, 1 -}; - -static const struct v4l2_fwht_pixfmt_info pixfmt_stateless_fwht = { - V4L2_PIX_FMT_FWHT_STATELESS, 0, 3, 1, 1, 1, 1, 1, 0, 1 -}; - -static void vicodec_dev_release(struct device *dev) -{ -} - -static struct platform_device vicodec_pdev = { - .name = VICODEC_NAME, - .dev.release = vicodec_dev_release, -}; - -/* Per-queue, driver-specific private data */ -struct vicodec_q_data { - unsigned int coded_width; - unsigned int coded_height; - unsigned int visible_width; - unsigned int visible_height; - unsigned int sizeimage; - unsigned int vb2_sizeimage; - unsigned int sequence; - const struct v4l2_fwht_pixfmt_info *info; -}; - -enum { - V4L2_M2M_SRC = 0, - V4L2_M2M_DST = 1, -}; - -struct vicodec_dev_instance { - struct video_device vfd; - struct mutex mutex; - spinlock_t lock; - struct v4l2_m2m_dev *m2m_dev; -}; - -struct vicodec_dev { - struct v4l2_device v4l2_dev; - struct vicodec_dev_instance stateful_enc; - struct vicodec_dev_instance stateful_dec; - struct vicodec_dev_instance stateless_dec; -#ifdef CONFIG_MEDIA_CONTROLLER - struct media_device mdev; -#endif - -}; - -struct vicodec_ctx { - struct v4l2_fh fh; - struct vicodec_dev *dev; - bool is_enc; - bool is_stateless; - spinlock_t *lock; - - struct v4l2_ctrl_handler hdl; - - /* Source and destination queue data */ - struct vicodec_q_data q_data[2]; - struct v4l2_fwht_state state; - - u32 cur_buf_offset; - u32 comp_max_size; - u32 comp_size; - u32 header_size; - u32 comp_magic_cnt; - bool comp_has_frame; - bool comp_has_next_frame; - bool first_source_change_sent; - bool source_changed; -}; - -static const struct v4l2_event vicodec_eos_event = { - .type = V4L2_EVENT_EOS -}; - -static inline struct vicodec_ctx *file2ctx(struct file *file) -{ - return container_of(file->private_data, struct vicodec_ctx, fh); -} - -static struct vicodec_q_data *get_q_data(struct vicodec_ctx *ctx, - enum v4l2_buf_type type) -{ - switch (type) { - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: - return &ctx->q_data[V4L2_M2M_SRC]; - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: - return &ctx->q_data[V4L2_M2M_DST]; - default: - break; - } - return NULL; -} - -static void copy_cap_to_ref(const u8 *cap, const struct v4l2_fwht_pixfmt_info *info, - struct v4l2_fwht_state *state) -{ - int plane_idx; - u8 *p_ref = state->ref_frame.buf; - unsigned int cap_stride = state->stride; - unsigned int ref_stride = state->ref_stride; - - for (plane_idx = 0; plane_idx < info->planes_num; plane_idx++) { - int i; - unsigned int h_div = (plane_idx == 1 || plane_idx == 2) ? - info->height_div : 1; - const u8 *row_cap = cap; - u8 *row_ref = p_ref; - - if (info->planes_num == 3 && plane_idx == 1) { - cap_stride /= 2; - ref_stride /= 2; - } - - if (plane_idx == 1 && - (info->id == V4L2_PIX_FMT_NV24 || - info->id == V4L2_PIX_FMT_NV42)) { - cap_stride *= 2; - ref_stride *= 2; - } - - for (i = 0; i < state->visible_height / h_div; i++) { - memcpy(row_ref, row_cap, ref_stride); - row_ref += ref_stride; - row_cap += cap_stride; - } - cap += cap_stride * (state->coded_height / h_div); - p_ref += ref_stride * (state->coded_height / h_div); - } -} - -static bool validate_by_version(unsigned int flags, unsigned int version) -{ - if (!version || version > FWHT_VERSION) - return false; - - if (version >= 2) { - unsigned int components_num = 1 + - ((flags & FWHT_FL_COMPONENTS_NUM_MSK) >> - FWHT_FL_COMPONENTS_NUM_OFFSET); - unsigned int pixenc = flags & FWHT_FL_PIXENC_MSK; - - if (components_num == 0 || components_num > 4 || !pixenc) - return false; - } - return true; -} - -static bool validate_stateless_params_flags(const struct v4l2_ctrl_fwht_params *params, - const struct v4l2_fwht_pixfmt_info *cur_info) -{ - unsigned int width_div = - (params->flags & FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2; - unsigned int height_div = - (params->flags & FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2; - unsigned int components_num = 3; - unsigned int pixenc = 0; - - if (params->version < 3) - return false; - - components_num = 1 + ((params->flags & FWHT_FL_COMPONENTS_NUM_MSK) >> - FWHT_FL_COMPONENTS_NUM_OFFSET); - pixenc = (params->flags & FWHT_FL_PIXENC_MSK); - if (v4l2_fwht_validate_fmt(cur_info, width_div, height_div, - components_num, pixenc)) - return true; - return false; -} - - -static void update_state_from_header(struct vicodec_ctx *ctx) -{ - const struct fwht_cframe_hdr *p_hdr = &ctx->state.header; - - ctx->state.visible_width = ntohl(p_hdr->width); - ctx->state.visible_height = ntohl(p_hdr->height); - ctx->state.colorspace = ntohl(p_hdr->colorspace); - ctx->state.xfer_func = ntohl(p_hdr->xfer_func); - ctx->state.ycbcr_enc = ntohl(p_hdr->ycbcr_enc); - ctx->state.quantization = ntohl(p_hdr->quantization); -} - -static int device_process(struct vicodec_ctx *ctx, - struct vb2_v4l2_buffer *src_vb, - struct vb2_v4l2_buffer *dst_vb) -{ - struct vicodec_dev *dev = ctx->dev; - struct v4l2_fwht_state *state = &ctx->state; - u8 *p_src, *p_dst; - int ret = 0; - - if (ctx->is_enc || ctx->is_stateless) - p_src = vb2_plane_vaddr(&src_vb->vb2_buf, 0); - else - p_src = state->compressed_frame; - - if (ctx->is_stateless) { - struct media_request *src_req = src_vb->vb2_buf.req_obj.req; - - ret = v4l2_ctrl_request_setup(src_req, &ctx->hdl); - if (ret) - return ret; - update_state_from_header(ctx); - - ctx->state.header.size = - htonl(vb2_get_plane_payload(&src_vb->vb2_buf, 0)); - /* - * set the reference buffer from the reference timestamp - * only if this is a P-frame - */ - if (!(ntohl(ctx->state.header.flags) & FWHT_FL_I_FRAME)) { - struct vb2_buffer *ref_vb2_buf; - int ref_buf_idx; - struct vb2_queue *vq_cap = - v4l2_m2m_get_vq(ctx->fh.m2m_ctx, - V4L2_BUF_TYPE_VIDEO_CAPTURE); - - ref_buf_idx = vb2_find_timestamp(vq_cap, - ctx->state.ref_frame_ts, 0); - if (ref_buf_idx < 0) - return -EINVAL; - - ref_vb2_buf = vq_cap->bufs[ref_buf_idx]; - if (ref_vb2_buf->state == VB2_BUF_STATE_ERROR) - ret = -EINVAL; - ctx->state.ref_frame.buf = - vb2_plane_vaddr(ref_vb2_buf, 0); - } else { - ctx->state.ref_frame.buf = NULL; - } - } - p_dst = vb2_plane_vaddr(&dst_vb->vb2_buf, 0); - if (!p_src || !p_dst) { - v4l2_err(&dev->v4l2_dev, - "Acquiring kernel pointers to buffers failed\n"); - return -EFAULT; - } - - if (ctx->is_enc) { - struct vicodec_q_data *q_src; - int comp_sz_or_errcode; - - q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); - state->info = q_src->info; - comp_sz_or_errcode = v4l2_fwht_encode(state, p_src, p_dst); - if (comp_sz_or_errcode < 0) - return comp_sz_or_errcode; - vb2_set_plane_payload(&dst_vb->vb2_buf, 0, comp_sz_or_errcode); - } else { - struct vicodec_q_data *q_dst; - unsigned int comp_frame_size = ntohl(ctx->state.header.size); - - q_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); - if (comp_frame_size > ctx->comp_max_size) - return -EINVAL; - state->info = q_dst->info; - ret = v4l2_fwht_decode(state, p_src, p_dst); - if (ret < 0) - return ret; - if (!ctx->is_stateless) - copy_cap_to_ref(p_dst, ctx->state.info, &ctx->state); - - vb2_set_plane_payload(&dst_vb->vb2_buf, 0, q_dst->sizeimage); - if (ntohl(ctx->state.header.flags) & FWHT_FL_I_FRAME) - dst_vb->flags |= V4L2_BUF_FLAG_KEYFRAME; - else - dst_vb->flags |= V4L2_BUF_FLAG_PFRAME; - } - return ret; -} - -/* - * mem2mem callbacks - */ -static enum vb2_buffer_state get_next_header(struct vicodec_ctx *ctx, - u8 **pp, u32 sz) -{ - static const u8 magic[] = { - 0x4f, 0x4f, 0x4f, 0x4f, 0xff, 0xff, 0xff, 0xff - }; - u8 *p = *pp; - u32 state; - u8 *header = (u8 *)&ctx->state.header; - - state = VB2_BUF_STATE_DONE; - - if (!ctx->header_size) { - state = VB2_BUF_STATE_ERROR; - for (; p < *pp + sz; p++) { - u32 copy; - - p = memchr(p, magic[ctx->comp_magic_cnt], - *pp + sz - p); - if (!p) { - ctx->comp_magic_cnt = 0; - p = *pp + sz; - break; - } - copy = sizeof(magic) - ctx->comp_magic_cnt; - if (*pp + sz - p < copy) - copy = *pp + sz - p; - - memcpy(header + ctx->comp_magic_cnt, p, copy); - ctx->comp_magic_cnt += copy; - if (!memcmp(header, magic, ctx->comp_magic_cnt)) { - p += copy; - state = VB2_BUF_STATE_DONE; - break; - } - ctx->comp_magic_cnt = 0; - } - if (ctx->comp_magic_cnt < sizeof(magic)) { - *pp = p; - return state; - } - ctx->header_size = sizeof(magic); - } - - if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) { - u32 copy = sizeof(struct fwht_cframe_hdr) - ctx->header_size; - - if (*pp + sz - p < copy) - copy = *pp + sz - p; - - memcpy(header + ctx->header_size, p, copy); - p += copy; - ctx->header_size += copy; - } - *pp = p; - return state; -} - -/* device_run() - prepares and starts the device */ -static void device_run(void *priv) -{ - struct vicodec_ctx *ctx = priv; - struct vicodec_dev *dev = ctx->dev; - struct vb2_v4l2_buffer *src_buf, *dst_buf; - struct vicodec_q_data *q_src, *q_dst; - u32 state; - struct media_request *src_req; - - src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); - dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); - src_req = src_buf->vb2_buf.req_obj.req; - - q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); - q_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); - - state = VB2_BUF_STATE_DONE; - if (device_process(ctx, src_buf, dst_buf)) - state = VB2_BUF_STATE_ERROR; - else - dst_buf->sequence = q_dst->sequence++; - dst_buf->flags &= ~V4L2_BUF_FLAG_LAST; - v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, false); - - spin_lock(ctx->lock); - if (!ctx->comp_has_next_frame && - v4l2_m2m_is_last_draining_src_buf(ctx->fh.m2m_ctx, src_buf)) { - dst_buf->flags |= V4L2_BUF_FLAG_LAST; - v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); - v4l2_m2m_mark_stopped(ctx->fh.m2m_ctx); - } - if (ctx->is_enc || ctx->is_stateless) { - src_buf->sequence = q_src->sequence++; - src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); - v4l2_m2m_buf_done(src_buf, state); - } else if (vb2_get_plane_payload(&src_buf->vb2_buf, 0) == ctx->cur_buf_offset) { - src_buf->sequence = q_src->sequence++; - src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); - v4l2_m2m_buf_done(src_buf, state); - ctx->cur_buf_offset = 0; - ctx->comp_has_next_frame = false; - } - v4l2_m2m_buf_done(dst_buf, state); - - ctx->comp_size = 0; - ctx->header_size = 0; - ctx->comp_magic_cnt = 0; - ctx->comp_has_frame = false; - spin_unlock(ctx->lock); - if (ctx->is_stateless && src_req) - v4l2_ctrl_request_complete(src_req, &ctx->hdl); - - if (ctx->is_enc) - v4l2_m2m_job_finish(dev->stateful_enc.m2m_dev, ctx->fh.m2m_ctx); - else if (ctx->is_stateless) - v4l2_m2m_job_finish(dev->stateless_dec.m2m_dev, - ctx->fh.m2m_ctx); - else - v4l2_m2m_job_finish(dev->stateful_dec.m2m_dev, ctx->fh.m2m_ctx); -} - -static void job_remove_src_buf(struct vicodec_ctx *ctx, u32 state) -{ - struct vb2_v4l2_buffer *src_buf; - struct vicodec_q_data *q_src; - - q_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); - spin_lock(ctx->lock); - src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); - src_buf->sequence = q_src->sequence++; - v4l2_m2m_buf_done(src_buf, state); - ctx->cur_buf_offset = 0; - spin_unlock(ctx->lock); -} - -static const struct v4l2_fwht_pixfmt_info * -info_from_header(const struct fwht_cframe_hdr *p_hdr) -{ - unsigned int flags = ntohl(p_hdr->flags); - unsigned int width_div = (flags & FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2; - unsigned int height_div = (flags & FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2; - unsigned int components_num = 3; - unsigned int pixenc = 0; - unsigned int version = ntohl(p_hdr->version); - - if (version >= 2) { - components_num = 1 + ((flags & FWHT_FL_COMPONENTS_NUM_MSK) >> - FWHT_FL_COMPONENTS_NUM_OFFSET); - pixenc = (flags & FWHT_FL_PIXENC_MSK); - } - return v4l2_fwht_find_nth_fmt(width_div, height_div, - components_num, pixenc, 0); -} - -static bool is_header_valid(const struct fwht_cframe_hdr *p_hdr) -{ - const struct v4l2_fwht_pixfmt_info *info; - unsigned int w = ntohl(p_hdr->width); - unsigned int h = ntohl(p_hdr->height); - unsigned int version = ntohl(p_hdr->version); - unsigned int flags = ntohl(p_hdr->flags); - - if (w < MIN_WIDTH || w > MAX_WIDTH || h < MIN_HEIGHT || h > MAX_HEIGHT) - return false; - - if (!validate_by_version(flags, version)) - return false; - - info = info_from_header(p_hdr); - if (!info) - return false; - return true; -} - -static void update_capture_data_from_header(struct vicodec_ctx *ctx) -{ - struct vicodec_q_data *q_dst = get_q_data(ctx, - V4L2_BUF_TYPE_VIDEO_CAPTURE); - const struct fwht_cframe_hdr *p_hdr = &ctx->state.header; - const struct v4l2_fwht_pixfmt_info *info = info_from_header(p_hdr); - unsigned int flags = ntohl(p_hdr->flags); - unsigned int hdr_width_div = (flags & FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2; - unsigned int hdr_height_div = (flags & FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2; - - /* - * This function should not be used by a stateless codec since - * it changes values in q_data that are not request specific - */ - WARN_ON(ctx->is_stateless); - - q_dst->info = info; - q_dst->visible_width = ntohl(p_hdr->width); - q_dst->visible_height = ntohl(p_hdr->height); - q_dst->coded_width = vic_round_dim(q_dst->visible_width, hdr_width_div); - q_dst->coded_height = vic_round_dim(q_dst->visible_height, - hdr_height_div); - - q_dst->sizeimage = q_dst->coded_width * q_dst->coded_height * - q_dst->info->sizeimage_mult / q_dst->info->sizeimage_div; - ctx->state.colorspace = ntohl(p_hdr->colorspace); - - ctx->state.xfer_func = ntohl(p_hdr->xfer_func); - ctx->state.ycbcr_enc = ntohl(p_hdr->ycbcr_enc); - ctx->state.quantization = ntohl(p_hdr->quantization); -} - -static void set_last_buffer(struct vb2_v4l2_buffer *dst_buf, - const struct vb2_v4l2_buffer *src_buf, - struct vicodec_ctx *ctx) -{ - struct vicodec_q_data *q_dst = get_q_data(ctx, - V4L2_BUF_TYPE_VIDEO_CAPTURE); - - vb2_set_plane_payload(&dst_buf->vb2_buf, 0, 0); - dst_buf->sequence = q_dst->sequence++; - - v4l2_m2m_buf_copy_metadata(src_buf, dst_buf, !ctx->is_enc); - dst_buf->flags |= V4L2_BUF_FLAG_LAST; - v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE); -} - -static int job_ready(void *priv) -{ - static const u8 magic[] = { - 0x4f, 0x4f, 0x4f, 0x4f, 0xff, 0xff, 0xff, 0xff - }; - struct vicodec_ctx *ctx = priv; - struct vb2_v4l2_buffer *src_buf; - u8 *p_src; - u8 *p; - u32 sz; - u32 state; - struct vicodec_q_data *q_dst = get_q_data(ctx, - V4L2_BUF_TYPE_VIDEO_CAPTURE); - unsigned int flags; - unsigned int hdr_width_div; - unsigned int hdr_height_div; - unsigned int max_to_copy; - unsigned int comp_frame_size; - - if (ctx->source_changed) - return 0; - if (ctx->is_stateless || ctx->is_enc || ctx->comp_has_frame) - return 1; - -restart: - ctx->comp_has_next_frame = false; - src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); - if (!src_buf) - return 0; - p_src = vb2_plane_vaddr(&src_buf->vb2_buf, 0); - sz = vb2_get_plane_payload(&src_buf->vb2_buf, 0); - p = p_src + ctx->cur_buf_offset; - - state = VB2_BUF_STATE_DONE; - - if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) { - state = get_next_header(ctx, &p, p_src + sz - p); - if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) { - if (v4l2_m2m_is_last_draining_src_buf(ctx->fh.m2m_ctx, - src_buf)) - return 1; - job_remove_src_buf(ctx, state); - goto restart; - } - } - - comp_frame_size = ntohl(ctx->state.header.size); - - /* - * The current scanned frame might be the first frame of a new - * resolution so its size might be larger than ctx->comp_max_size. - * In that case it is copied up to the current buffer capacity and - * the copy will continue after allocating new large enough buffer - * when restreaming - */ - max_to_copy = min(comp_frame_size, ctx->comp_max_size); - - if (ctx->comp_size < max_to_copy) { - u32 copy = max_to_copy - ctx->comp_size; - - if (copy > p_src + sz - p) - copy = p_src + sz - p; - - memcpy(ctx->state.compressed_frame + ctx->comp_size, - p, copy); - p += copy; - ctx->comp_size += copy; - if (ctx->comp_size < max_to_copy) { - if (v4l2_m2m_is_last_draining_src_buf(ctx->fh.m2m_ctx, - src_buf)) - return 1; - job_remove_src_buf(ctx, state); - goto restart; - } - } - ctx->cur_buf_offset = p - p_src; - if (ctx->comp_size == comp_frame_size) - ctx->comp_has_frame = true; - ctx->comp_has_next_frame = false; - if (ctx->comp_has_frame && sz - ctx->cur_buf_offset >= - sizeof(struct fwht_cframe_hdr)) { - struct fwht_cframe_hdr *p_hdr = (struct fwht_cframe_hdr *)p; - u32 frame_size = ntohl(p_hdr->size); - u32 remaining = sz - ctx->cur_buf_offset - sizeof(*p_hdr); - - if (!memcmp(p, magic, sizeof(magic))) - ctx->comp_has_next_frame = remaining >= frame_size; - } - /* - * if the header is invalid the device_run will just drop the frame - * with an error - */ - if (!is_header_valid(&ctx->state.header) && ctx->comp_has_frame) - return 1; - flags = ntohl(ctx->state.header.flags); - hdr_width_div = (flags & FWHT_FL_CHROMA_FULL_WIDTH) ? 1 : 2; - hdr_height_div = (flags & FWHT_FL_CHROMA_FULL_HEIGHT) ? 1 : 2; - - if (ntohl(ctx->state.header.width) != q_dst->visible_width || - ntohl(ctx->state.header.height) != q_dst->visible_height || - !q_dst->info || - hdr_width_div != q_dst->info->width_div || - hdr_height_div != q_dst->info->height_div) { - static const struct v4l2_event rs_event = { - .type = V4L2_EVENT_SOURCE_CHANGE, - .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION, - }; - - struct vb2_v4l2_buffer *dst_buf = - v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); - - update_capture_data_from_header(ctx); - v4l2_event_queue_fh(&ctx->fh, &rs_event); - set_last_buffer(dst_buf, src_buf, ctx); - ctx->source_changed = true; - return 0; - } - return 1; -} - -/* - * video ioctls - */ - -static const struct v4l2_fwht_pixfmt_info *find_fmt(u32 fmt) -{ - const struct v4l2_fwht_pixfmt_info *info = - v4l2_fwht_find_pixfmt(fmt); - - if (!info) - info = v4l2_fwht_get_pixfmt(0); - return info; -} - -static int vidioc_querycap(struct file *file, void *priv, - struct v4l2_capability *cap) -{ - strscpy(cap->driver, VICODEC_NAME, sizeof(cap->driver)); - strscpy(cap->card, VICODEC_NAME, sizeof(cap->card)); - snprintf(cap->bus_info, sizeof(cap->bus_info), - "platform:%s", VICODEC_NAME); - return 0; -} - -static int enum_fmt(struct v4l2_fmtdesc *f, struct vicodec_ctx *ctx, - bool is_out) -{ - bool is_uncomp = (ctx->is_enc && is_out) || (!ctx->is_enc && !is_out); - - if (V4L2_TYPE_IS_MULTIPLANAR(f->type) && !multiplanar) - return -EINVAL; - if (!V4L2_TYPE_IS_MULTIPLANAR(f->type) && multiplanar) - return -EINVAL; - - if (is_uncomp) { - const struct v4l2_fwht_pixfmt_info *info = - get_q_data(ctx, f->type)->info; - - if (ctx->is_enc || - !vb2_is_streaming(&ctx->fh.m2m_ctx->cap_q_ctx.q)) - info = v4l2_fwht_get_pixfmt(f->index); - else - info = v4l2_fwht_find_nth_fmt(info->width_div, - info->height_div, - info->components_num, - info->pixenc, - f->index); - if (!info) - return -EINVAL; - f->pixelformat = info->id; - } else { - if (f->index) - return -EINVAL; - f->pixelformat = ctx->is_stateless ? - V4L2_PIX_FMT_FWHT_STATELESS : V4L2_PIX_FMT_FWHT; - if (!ctx->is_enc && !ctx->is_stateless) - f->flags = V4L2_FMT_FLAG_DYN_RESOLUTION | - V4L2_FMT_FLAG_CONTINUOUS_BYTESTREAM; - } - return 0; -} - -static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_fmtdesc *f) -{ - struct vicodec_ctx *ctx = file2ctx(file); - - return enum_fmt(f, ctx, false); -} - -static int vidioc_enum_fmt_vid_out(struct file *file, void *priv, - struct v4l2_fmtdesc *f) -{ - struct vicodec_ctx *ctx = file2ctx(file); - - return enum_fmt(f, ctx, true); -} - -static int vidioc_g_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f) -{ - struct vb2_queue *vq; - struct vicodec_q_data *q_data; - struct v4l2_pix_format_mplane *pix_mp; - struct v4l2_pix_format *pix; - const struct v4l2_fwht_pixfmt_info *info; - - vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); - if (!vq) - return -EINVAL; - - q_data = get_q_data(ctx, f->type); - info = q_data->info; - - switch (f->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - if (multiplanar) - return -EINVAL; - pix = &f->fmt.pix; - pix->width = q_data->coded_width; - pix->height = q_data->coded_height; - pix->field = V4L2_FIELD_NONE; - pix->pixelformat = info->id; - pix->bytesperline = q_data->coded_width * - info->bytesperline_mult; - pix->sizeimage = q_data->sizeimage; - pix->colorspace = ctx->state.colorspace; - pix->xfer_func = ctx->state.xfer_func; - pix->ycbcr_enc = ctx->state.ycbcr_enc; - pix->quantization = ctx->state.quantization; - break; - - case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: - case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: - if (!multiplanar) - return -EINVAL; - pix_mp = &f->fmt.pix_mp; - pix_mp->width = q_data->coded_width; - pix_mp->height = q_data->coded_height; - pix_mp->field = V4L2_FIELD_NONE; - pix_mp->pixelformat = info->id; - pix_mp->num_planes = 1; - pix_mp->plane_fmt[0].bytesperline = - q_data->coded_width * info->bytesperline_mult; - pix_mp->plane_fmt[0].sizeimage = q_data->sizeimage; - pix_mp->colorspace = ctx->state.colorspace; - pix_mp->xfer_func = ctx->state.xfer_func; - pix_mp->ycbcr_enc = ctx->state.ycbcr_enc; - pix_mp->quantization = ctx->state.quantization; - memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved)); - memset(pix_mp->plane_fmt[0].reserved, 0, - sizeof(pix_mp->plane_fmt[0].reserved)); - break; - default: - return -EINVAL; - } - return 0; -} - -static int vidioc_g_fmt_vid_out(struct file *file, void *priv, - struct v4l2_format *f) -{ - return vidioc_g_fmt(file2ctx(file), f); -} - -static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - return vidioc_g_fmt(file2ctx(file), f); -} - -static int vidioc_try_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f) -{ - struct v4l2_pix_format_mplane *pix_mp; - struct v4l2_pix_format *pix; - struct v4l2_plane_pix_format *plane; - const struct v4l2_fwht_pixfmt_info *info = ctx->is_stateless ? - &pixfmt_stateless_fwht : &pixfmt_fwht; - - switch (f->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - pix = &f->fmt.pix; - if (pix->pixelformat != V4L2_PIX_FMT_FWHT && - pix->pixelformat != V4L2_PIX_FMT_FWHT_STATELESS) - info = find_fmt(pix->pixelformat); - - pix->width = clamp(pix->width, MIN_WIDTH, MAX_WIDTH); - pix->width = vic_round_dim(pix->width, info->width_div); - - pix->height = clamp(pix->height, MIN_HEIGHT, MAX_HEIGHT); - pix->height = vic_round_dim(pix->height, info->height_div); - - pix->field = V4L2_FIELD_NONE; - pix->bytesperline = - pix->width * info->bytesperline_mult; - pix->sizeimage = pix->width * pix->height * - info->sizeimage_mult / info->sizeimage_div; - if (pix->pixelformat == V4L2_PIX_FMT_FWHT) - pix->sizeimage += sizeof(struct fwht_cframe_hdr); - break; - case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: - case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: - pix_mp = &f->fmt.pix_mp; - plane = pix_mp->plane_fmt; - if (pix_mp->pixelformat != V4L2_PIX_FMT_FWHT && - pix_mp->pixelformat != V4L2_PIX_FMT_FWHT_STATELESS) - info = find_fmt(pix_mp->pixelformat); - pix_mp->num_planes = 1; - - pix_mp->width = clamp(pix_mp->width, MIN_WIDTH, MAX_WIDTH); - pix_mp->width = vic_round_dim(pix_mp->width, info->width_div); - - pix_mp->height = clamp(pix_mp->height, MIN_HEIGHT, MAX_HEIGHT); - pix_mp->height = vic_round_dim(pix_mp->height, - info->height_div); - - pix_mp->field = V4L2_FIELD_NONE; - plane->bytesperline = - pix_mp->width * info->bytesperline_mult; - plane->sizeimage = pix_mp->width * pix_mp->height * - info->sizeimage_mult / info->sizeimage_div; - if (pix_mp->pixelformat == V4L2_PIX_FMT_FWHT) - plane->sizeimage += sizeof(struct fwht_cframe_hdr); - memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved)); - memset(plane->reserved, 0, sizeof(plane->reserved)); - break; - default: - return -EINVAL; - } - - return 0; -} - -static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct vicodec_ctx *ctx = file2ctx(file); - struct v4l2_pix_format_mplane *pix_mp; - struct v4l2_pix_format *pix; - - switch (f->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - if (multiplanar) - return -EINVAL; - pix = &f->fmt.pix; - pix->pixelformat = ctx->is_enc ? V4L2_PIX_FMT_FWHT : - find_fmt(f->fmt.pix.pixelformat)->id; - pix->colorspace = ctx->state.colorspace; - pix->xfer_func = ctx->state.xfer_func; - pix->ycbcr_enc = ctx->state.ycbcr_enc; - pix->quantization = ctx->state.quantization; - break; - case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: - if (!multiplanar) - return -EINVAL; - pix_mp = &f->fmt.pix_mp; - pix_mp->pixelformat = ctx->is_enc ? V4L2_PIX_FMT_FWHT : - find_fmt(pix_mp->pixelformat)->id; - pix_mp->colorspace = ctx->state.colorspace; - pix_mp->xfer_func = ctx->state.xfer_func; - pix_mp->ycbcr_enc = ctx->state.ycbcr_enc; - pix_mp->quantization = ctx->state.quantization; - break; - default: - return -EINVAL; - } - - return vidioc_try_fmt(ctx, f); -} - -static int vidioc_try_fmt_vid_out(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct vicodec_ctx *ctx = file2ctx(file); - struct v4l2_pix_format_mplane *pix_mp; - struct v4l2_pix_format *pix; - - switch (f->type) { - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - if (multiplanar) - return -EINVAL; - pix = &f->fmt.pix; - if (ctx->is_enc) - pix->pixelformat = find_fmt(pix->pixelformat)->id; - else if (ctx->is_stateless) - pix->pixelformat = V4L2_PIX_FMT_FWHT_STATELESS; - else - pix->pixelformat = V4L2_PIX_FMT_FWHT; - if (!pix->colorspace) - pix->colorspace = V4L2_COLORSPACE_REC709; - break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: - if (!multiplanar) - return -EINVAL; - pix_mp = &f->fmt.pix_mp; - if (ctx->is_enc) - pix_mp->pixelformat = find_fmt(pix_mp->pixelformat)->id; - else if (ctx->is_stateless) - pix_mp->pixelformat = V4L2_PIX_FMT_FWHT_STATELESS; - else - pix_mp->pixelformat = V4L2_PIX_FMT_FWHT; - if (!pix_mp->colorspace) - pix_mp->colorspace = V4L2_COLORSPACE_REC709; - break; - default: - return -EINVAL; - } - - return vidioc_try_fmt(ctx, f); -} - -static int vidioc_s_fmt(struct vicodec_ctx *ctx, struct v4l2_format *f) -{ - struct vicodec_q_data *q_data; - struct vb2_queue *vq; - bool fmt_changed = true; - struct v4l2_pix_format_mplane *pix_mp; - struct v4l2_pix_format *pix; - - vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); - if (!vq) - return -EINVAL; - - q_data = get_q_data(ctx, f->type); - if (!q_data) - return -EINVAL; - - switch (f->type) { - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - pix = &f->fmt.pix; - if (ctx->is_enc && V4L2_TYPE_IS_OUTPUT(f->type)) - fmt_changed = - !q_data->info || - q_data->info->id != pix->pixelformat || - q_data->coded_width != pix->width || - q_data->coded_height != pix->height; - - if (vb2_is_busy(vq) && fmt_changed) - return -EBUSY; - - if (pix->pixelformat == V4L2_PIX_FMT_FWHT) - q_data->info = &pixfmt_fwht; - else if (pix->pixelformat == V4L2_PIX_FMT_FWHT_STATELESS) - q_data->info = &pixfmt_stateless_fwht; - else - q_data->info = find_fmt(pix->pixelformat); - q_data->coded_width = pix->width; - q_data->coded_height = pix->height; - q_data->sizeimage = pix->sizeimage; - break; - case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE: - case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: - pix_mp = &f->fmt.pix_mp; - if (ctx->is_enc && V4L2_TYPE_IS_OUTPUT(f->type)) - fmt_changed = - !q_data->info || - q_data->info->id != pix_mp->pixelformat || - q_data->coded_width != pix_mp->width || - q_data->coded_height != pix_mp->height; - - if (vb2_is_busy(vq) && fmt_changed) - return -EBUSY; - - if (pix_mp->pixelformat == V4L2_PIX_FMT_FWHT) - q_data->info = &pixfmt_fwht; - else if (pix_mp->pixelformat == V4L2_PIX_FMT_FWHT_STATELESS) - q_data->info = &pixfmt_stateless_fwht; - else - q_data->info = find_fmt(pix_mp->pixelformat); - q_data->coded_width = pix_mp->width; - q_data->coded_height = pix_mp->height; - q_data->sizeimage = pix_mp->plane_fmt[0].sizeimage; - break; - default: - return -EINVAL; - } - - dprintk(ctx->dev, - "Setting format for type %d, coded wxh: %dx%d, fourcc: 0x%08x\n", - f->type, q_data->coded_width, q_data->coded_height, - q_data->info->id); - - return 0; -} - -static int vidioc_s_fmt_vid_cap(struct file *file, void *priv, - struct v4l2_format *f) -{ - int ret; - - ret = vidioc_try_fmt_vid_cap(file, priv, f); - if (ret) - return ret; - - return vidioc_s_fmt(file2ctx(file), f); -} - -static int vidioc_s_fmt_vid_out(struct file *file, void *priv, - struct v4l2_format *f) -{ - struct vicodec_ctx *ctx = file2ctx(file); - struct vicodec_q_data *q_data; - struct vicodec_q_data *q_data_cap; - struct v4l2_pix_format *pix; - struct v4l2_pix_format_mplane *pix_mp; - u32 coded_w = 0, coded_h = 0; - unsigned int size = 0; - int ret; - - q_data = get_q_data(ctx, f->type); - q_data_cap = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); - - ret = vidioc_try_fmt_vid_out(file, priv, f); - if (ret) - return ret; - - if (ctx->is_enc) { - struct vb2_queue *vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); - struct vb2_queue *vq_cap = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, - V4L2_BUF_TYPE_VIDEO_CAPTURE); - const struct v4l2_fwht_pixfmt_info *info = ctx->is_stateless ? - &pixfmt_stateless_fwht : &pixfmt_fwht; - - if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { - coded_w = f->fmt.pix.width; - coded_h = f->fmt.pix.height; - } else { - coded_w = f->fmt.pix_mp.width; - coded_h = f->fmt.pix_mp.height; - } - if (vb2_is_busy(vq) && (coded_w != q_data->coded_width || - coded_h != q_data->coded_height)) - return -EBUSY; - size = coded_w * coded_h * - info->sizeimage_mult / info->sizeimage_div; - if (!ctx->is_stateless) - size += sizeof(struct fwht_cframe_hdr); - - if (vb2_is_busy(vq_cap) && size > q_data_cap->sizeimage) - return -EBUSY; - } - - ret = vidioc_s_fmt(file2ctx(file), f); - if (!ret) { - if (ctx->is_enc) { - q_data->visible_width = coded_w; - q_data->visible_height = coded_h; - q_data_cap->coded_width = coded_w; - q_data_cap->coded_height = coded_h; - q_data_cap->sizeimage = size; - } - - switch (f->type) { - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - pix = &f->fmt.pix; - ctx->state.colorspace = pix->colorspace; - ctx->state.xfer_func = pix->xfer_func; - ctx->state.ycbcr_enc = pix->ycbcr_enc; - ctx->state.quantization = pix->quantization; - break; - case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE: - pix_mp = &f->fmt.pix_mp; - ctx->state.colorspace = pix_mp->colorspace; - ctx->state.xfer_func = pix_mp->xfer_func; - ctx->state.ycbcr_enc = pix_mp->ycbcr_enc; - ctx->state.quantization = pix_mp->quantization; - break; - default: - break; - } - } - return ret; -} - -static int vidioc_g_selection(struct file *file, void *priv, - struct v4l2_selection *s) -{ - struct vicodec_ctx *ctx = file2ctx(file); - struct vicodec_q_data *q_data; - - q_data = get_q_data(ctx, s->type); - if (!q_data) - return -EINVAL; - /* - * encoder supports only cropping on the OUTPUT buffer - * decoder supports only composing on the CAPTURE buffer - */ - if (ctx->is_enc && s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { - switch (s->target) { - case V4L2_SEL_TGT_CROP: - s->r.left = 0; - s->r.top = 0; - s->r.width = q_data->visible_width; - s->r.height = q_data->visible_height; - return 0; - case V4L2_SEL_TGT_CROP_DEFAULT: - case V4L2_SEL_TGT_CROP_BOUNDS: - s->r.left = 0; - s->r.top = 0; - s->r.width = q_data->coded_width; - s->r.height = q_data->coded_height; - return 0; - } - } else if (!ctx->is_enc && s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) { - switch (s->target) { - case V4L2_SEL_TGT_COMPOSE: - s->r.left = 0; - s->r.top = 0; - s->r.width = q_data->visible_width; - s->r.height = q_data->visible_height; - return 0; - case V4L2_SEL_TGT_COMPOSE_DEFAULT: - case V4L2_SEL_TGT_COMPOSE_BOUNDS: - s->r.left = 0; - s->r.top = 0; - s->r.width = q_data->coded_width; - s->r.height = q_data->coded_height; - return 0; - } - } - return -EINVAL; -} - -static int vidioc_s_selection(struct file *file, void *priv, - struct v4l2_selection *s) -{ - struct vicodec_ctx *ctx = file2ctx(file); - struct vicodec_q_data *q_data; - - if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT) - return -EINVAL; - - q_data = get_q_data(ctx, s->type); - if (!q_data) - return -EINVAL; - - if (!ctx->is_enc || s->target != V4L2_SEL_TGT_CROP) - return -EINVAL; - - s->r.left = 0; - s->r.top = 0; - q_data->visible_width = clamp(s->r.width, MIN_WIDTH, - q_data->coded_width); - s->r.width = q_data->visible_width; - q_data->visible_height = clamp(s->r.height, MIN_HEIGHT, - q_data->coded_height); - s->r.height = q_data->visible_height; - return 0; -} - -static int vicodec_encoder_cmd(struct file *file, void *fh, - struct v4l2_encoder_cmd *ec) -{ - struct vicodec_ctx *ctx = file2ctx(file); - int ret; - - ret = v4l2_m2m_ioctl_try_encoder_cmd(file, fh, ec); - if (ret < 0) - return ret; - - if (!vb2_is_streaming(&ctx->fh.m2m_ctx->cap_q_ctx.q) || - !vb2_is_streaming(&ctx->fh.m2m_ctx->out_q_ctx.q)) - return 0; - - ret = v4l2_m2m_ioctl_encoder_cmd(file, fh, ec); - if (ret < 0) - return ret; - - if (ec->cmd == V4L2_ENC_CMD_STOP && - v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) - v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); - - if (ec->cmd == V4L2_ENC_CMD_START && - v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) - vb2_clear_last_buffer_dequeued(&ctx->fh.m2m_ctx->cap_q_ctx.q); - - return 0; -} - -static int vicodec_decoder_cmd(struct file *file, void *fh, - struct v4l2_decoder_cmd *dc) -{ - struct vicodec_ctx *ctx = file2ctx(file); - int ret; - - ret = v4l2_m2m_ioctl_try_decoder_cmd(file, fh, dc); - if (ret < 0) - return ret; - - if (!vb2_is_streaming(&ctx->fh.m2m_ctx->cap_q_ctx.q) || - !vb2_is_streaming(&ctx->fh.m2m_ctx->out_q_ctx.q)) - return 0; - - ret = v4l2_m2m_ioctl_decoder_cmd(file, fh, dc); - if (ret < 0) - return ret; - - if (dc->cmd == V4L2_DEC_CMD_STOP && - v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) - v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); - - if (dc->cmd == V4L2_DEC_CMD_START && - v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) - vb2_clear_last_buffer_dequeued(&ctx->fh.m2m_ctx->cap_q_ctx.q); - - return 0; -} - -static int vicodec_enum_framesizes(struct file *file, void *fh, - struct v4l2_frmsizeenum *fsize) -{ - switch (fsize->pixel_format) { - case V4L2_PIX_FMT_FWHT_STATELESS: - break; - case V4L2_PIX_FMT_FWHT: - break; - default: - if (find_fmt(fsize->pixel_format)->id == fsize->pixel_format) - break; - return -EINVAL; - } - - if (fsize->index) - return -EINVAL; - - fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; - - fsize->stepwise.min_width = MIN_WIDTH; - fsize->stepwise.max_width = MAX_WIDTH; - fsize->stepwise.step_width = 8; - fsize->stepwise.min_height = MIN_HEIGHT; - fsize->stepwise.max_height = MAX_HEIGHT; - fsize->stepwise.step_height = 8; - - return 0; -} - -static int vicodec_subscribe_event(struct v4l2_fh *fh, - const struct v4l2_event_subscription *sub) -{ - struct vicodec_ctx *ctx = container_of(fh, struct vicodec_ctx, fh); - - switch (sub->type) { - case V4L2_EVENT_SOURCE_CHANGE: - if (ctx->is_enc) - return -EINVAL; - /* fall through */ - case V4L2_EVENT_EOS: - if (ctx->is_stateless) - return -EINVAL; - return v4l2_event_subscribe(fh, sub, 0, NULL); - default: - return v4l2_ctrl_subscribe_event(fh, sub); - } -} - -static const struct v4l2_ioctl_ops vicodec_ioctl_ops = { - .vidioc_querycap = vidioc_querycap, - - .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, - .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, - .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, - - .vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt_vid_cap, - .vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt_vid_cap, - .vidioc_s_fmt_vid_cap_mplane = vidioc_s_fmt_vid_cap, - - .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out, - .vidioc_g_fmt_vid_out = vidioc_g_fmt_vid_out, - .vidioc_try_fmt_vid_out = vidioc_try_fmt_vid_out, - .vidioc_s_fmt_vid_out = vidioc_s_fmt_vid_out, - - .vidioc_g_fmt_vid_out_mplane = vidioc_g_fmt_vid_out, - .vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt_vid_out, - .vidioc_s_fmt_vid_out_mplane = vidioc_s_fmt_vid_out, - - .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, - .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, - .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, - .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, - .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, - .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, - .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, - - .vidioc_streamon = v4l2_m2m_ioctl_streamon, - .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, - - .vidioc_g_selection = vidioc_g_selection, - .vidioc_s_selection = vidioc_s_selection, - - .vidioc_try_encoder_cmd = v4l2_m2m_ioctl_try_encoder_cmd, - .vidioc_encoder_cmd = vicodec_encoder_cmd, - .vidioc_try_decoder_cmd = v4l2_m2m_ioctl_try_decoder_cmd, - .vidioc_decoder_cmd = vicodec_decoder_cmd, - .vidioc_enum_framesizes = vicodec_enum_framesizes, - - .vidioc_subscribe_event = vicodec_subscribe_event, - .vidioc_unsubscribe_event = v4l2_event_unsubscribe, -}; - - -/* - * Queue operations - */ - -static int vicodec_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, - unsigned int *nplanes, unsigned int sizes[], - struct device *alloc_devs[]) -{ - struct vicodec_ctx *ctx = vb2_get_drv_priv(vq); - struct vicodec_q_data *q_data = get_q_data(ctx, vq->type); - unsigned int size = q_data->sizeimage; - - if (*nplanes) - return sizes[0] < size ? -EINVAL : 0; - - *nplanes = 1; - sizes[0] = size; - q_data->vb2_sizeimage = size; - return 0; -} - -static int vicodec_buf_out_validate(struct vb2_buffer *vb) -{ - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); - - vbuf->field = V4L2_FIELD_NONE; - return 0; -} - -static int vicodec_buf_prepare(struct vb2_buffer *vb) -{ - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); - struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); - struct vicodec_q_data *q_data; - - dprintk(ctx->dev, "type: %d\n", vb->vb2_queue->type); - - q_data = get_q_data(ctx, vb->vb2_queue->type); - if (V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) { - if (vbuf->field == V4L2_FIELD_ANY) - vbuf->field = V4L2_FIELD_NONE; - if (vbuf->field != V4L2_FIELD_NONE) { - dprintk(ctx->dev, "%s field isn't supported\n", - __func__); - return -EINVAL; - } - } - - if (vb2_plane_size(vb, 0) < q_data->vb2_sizeimage) { - dprintk(ctx->dev, - "%s data will not fit into plane (%lu < %lu)\n", - __func__, vb2_plane_size(vb, 0), - (long)q_data->vb2_sizeimage); - return -EINVAL; - } - - return 0; -} - -static void vicodec_buf_queue(struct vb2_buffer *vb) -{ - struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); - struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); - unsigned int sz = vb2_get_plane_payload(&vbuf->vb2_buf, 0); - u8 *p_src = vb2_plane_vaddr(&vbuf->vb2_buf, 0); - u8 *p = p_src; - struct vb2_queue *vq_out = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, - V4L2_BUF_TYPE_VIDEO_OUTPUT); - struct vb2_queue *vq_cap = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, - V4L2_BUF_TYPE_VIDEO_CAPTURE); - bool header_valid = false; - static const struct v4l2_event rs_event = { - .type = V4L2_EVENT_SOURCE_CHANGE, - .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION, - }; - - if (!V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type) && - vb2_is_streaming(vb->vb2_queue) && - v4l2_m2m_dst_buf_is_last(ctx->fh.m2m_ctx)) { - unsigned int i; - - for (i = 0; i < vb->num_planes; i++) - vb->planes[i].bytesused = 0; - - vbuf->field = V4L2_FIELD_NONE; - vbuf->sequence = - get_q_data(ctx, vb->vb2_queue->type)->sequence++; - - v4l2_m2m_last_buffer_done(ctx->fh.m2m_ctx, vbuf); - v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); - return; - } - - /* buf_queue handles only the first source change event */ - if (ctx->first_source_change_sent) { - v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); - return; - } - - /* - * if both queues are streaming, the source change event is - * handled in job_ready - */ - if (vb2_is_streaming(vq_cap) && vb2_is_streaming(vq_out)) { - v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); - return; - } - - /* - * source change event is relevant only for the stateful decoder - * in the compressed stream - */ - if (ctx->is_stateless || ctx->is_enc || - !V4L2_TYPE_IS_OUTPUT(vb->vb2_queue->type)) { - v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); - return; - } - - do { - enum vb2_buffer_state state = - get_next_header(ctx, &p, p_src + sz - p); - - if (ctx->header_size < sizeof(struct fwht_cframe_hdr)) { - v4l2_m2m_buf_done(vbuf, state); - return; - } - header_valid = is_header_valid(&ctx->state.header); - /* - * p points right after the end of the header in the - * buffer. If the header is invalid we set p to point - * to the next byte after the start of the header - */ - if (!header_valid) { - p = p - sizeof(struct fwht_cframe_hdr) + 1; - if (p < p_src) - p = p_src; - ctx->header_size = 0; - ctx->comp_magic_cnt = 0; - } - - } while (!header_valid); - - ctx->cur_buf_offset = p - p_src; - update_capture_data_from_header(ctx); - ctx->first_source_change_sent = true; - v4l2_event_queue_fh(&ctx->fh, &rs_event); - v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); -} - -static void vicodec_return_bufs(struct vb2_queue *q, u32 state) -{ - struct vicodec_ctx *ctx = vb2_get_drv_priv(q); - struct vb2_v4l2_buffer *vbuf; - - for (;;) { - if (V4L2_TYPE_IS_OUTPUT(q->type)) - vbuf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); - else - vbuf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); - if (vbuf == NULL) - return; - v4l2_ctrl_request_complete(vbuf->vb2_buf.req_obj.req, - &ctx->hdl); - spin_lock(ctx->lock); - v4l2_m2m_buf_done(vbuf, state); - spin_unlock(ctx->lock); - } -} - -static unsigned int total_frame_size(struct vicodec_q_data *q_data) -{ - unsigned int size; - unsigned int chroma_div; - - if (!q_data->info) { - WARN_ON(1); - return 0; - } - size = q_data->coded_width * q_data->coded_height; - chroma_div = q_data->info->width_div * q_data->info->height_div; - - if (q_data->info->components_num == 4) - return 2 * size + 2 * (size / chroma_div); - else if (q_data->info->components_num == 3) - return size + 2 * (size / chroma_div); - return size; -} - -static int vicodec_start_streaming(struct vb2_queue *q, - unsigned int count) -{ - struct vicodec_ctx *ctx = vb2_get_drv_priv(q); - struct vicodec_q_data *q_data = get_q_data(ctx, q->type); - struct v4l2_fwht_state *state = &ctx->state; - const struct v4l2_fwht_pixfmt_info *info = q_data->info; - unsigned int size = q_data->coded_width * q_data->coded_height; - unsigned int chroma_div; - unsigned int total_planes_size; - u8 *new_comp_frame = NULL; - - chroma_div = info->width_div * info->height_div; - q_data->sequence = 0; - - v4l2_m2m_update_start_streaming_state(ctx->fh.m2m_ctx, q); - - state->gop_cnt = 0; - - if ((V4L2_TYPE_IS_OUTPUT(q->type) && !ctx->is_enc) || - (!V4L2_TYPE_IS_OUTPUT(q->type) && ctx->is_enc)) - return 0; - - if (info->id == V4L2_PIX_FMT_FWHT || - info->id == V4L2_PIX_FMT_FWHT_STATELESS) { - vicodec_return_bufs(q, VB2_BUF_STATE_QUEUED); - return -EINVAL; - } - total_planes_size = total_frame_size(q_data); - ctx->comp_max_size = total_planes_size; - - state->visible_width = q_data->visible_width; - state->visible_height = q_data->visible_height; - state->coded_width = q_data->coded_width; - state->coded_height = q_data->coded_height; - state->stride = q_data->coded_width * - info->bytesperline_mult; - - if (ctx->is_stateless) { - state->ref_stride = state->stride; - return 0; - } - state->ref_stride = q_data->coded_width * info->luma_alpha_step; - - state->ref_frame.buf = kvmalloc(total_planes_size, GFP_KERNEL); - state->ref_frame.luma = state->ref_frame.buf; - new_comp_frame = kvmalloc(ctx->comp_max_size, GFP_KERNEL); - - if (!state->ref_frame.luma || !new_comp_frame) { - kvfree(state->ref_frame.luma); - kvfree(new_comp_frame); - vicodec_return_bufs(q, VB2_BUF_STATE_QUEUED); - return -ENOMEM; - } - /* - * if state->compressed_frame was already allocated then - * it contain data of the first frame of the new resolution - */ - if (state->compressed_frame) { - if (ctx->comp_size > ctx->comp_max_size) - ctx->comp_size = ctx->comp_max_size; - - memcpy(new_comp_frame, - state->compressed_frame, ctx->comp_size); - } - - kvfree(state->compressed_frame); - state->compressed_frame = new_comp_frame; - - if (info->components_num < 3) { - state->ref_frame.cb = NULL; - state->ref_frame.cr = NULL; - state->ref_frame.alpha = NULL; - return 0; - } - - state->ref_frame.cb = state->ref_frame.luma + size; - state->ref_frame.cr = state->ref_frame.cb + size / chroma_div; - - if (info->components_num == 4) - state->ref_frame.alpha = - state->ref_frame.cr + size / chroma_div; - else - state->ref_frame.alpha = NULL; - - return 0; -} - -static void vicodec_stop_streaming(struct vb2_queue *q) -{ - struct vicodec_ctx *ctx = vb2_get_drv_priv(q); - - vicodec_return_bufs(q, VB2_BUF_STATE_ERROR); - - v4l2_m2m_update_stop_streaming_state(ctx->fh.m2m_ctx, q); - - if (V4L2_TYPE_IS_OUTPUT(q->type) && - v4l2_m2m_has_stopped(ctx->fh.m2m_ctx)) - v4l2_event_queue_fh(&ctx->fh, &vicodec_eos_event); - - if (!ctx->is_enc && V4L2_TYPE_IS_OUTPUT(q->type)) - ctx->first_source_change_sent = false; - - if ((!V4L2_TYPE_IS_OUTPUT(q->type) && !ctx->is_enc) || - (V4L2_TYPE_IS_OUTPUT(q->type) && ctx->is_enc)) { - if (!ctx->is_stateless) - kvfree(ctx->state.ref_frame.buf); - ctx->state.ref_frame.buf = NULL; - ctx->state.ref_frame.luma = NULL; - ctx->comp_max_size = 0; - ctx->source_changed = false; - } - if (V4L2_TYPE_IS_OUTPUT(q->type) && !ctx->is_enc) { - ctx->cur_buf_offset = 0; - ctx->comp_size = 0; - ctx->header_size = 0; - ctx->comp_magic_cnt = 0; - ctx->comp_has_frame = 0; - ctx->comp_has_next_frame = 0; - } -} - -static void vicodec_buf_request_complete(struct vb2_buffer *vb) -{ - struct vicodec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); - - v4l2_ctrl_request_complete(vb->req_obj.req, &ctx->hdl); -} - - -static const struct vb2_ops vicodec_qops = { - .queue_setup = vicodec_queue_setup, - .buf_out_validate = vicodec_buf_out_validate, - .buf_prepare = vicodec_buf_prepare, - .buf_queue = vicodec_buf_queue, - .buf_request_complete = vicodec_buf_request_complete, - .start_streaming = vicodec_start_streaming, - .stop_streaming = vicodec_stop_streaming, - .wait_prepare = vb2_ops_wait_prepare, - .wait_finish = vb2_ops_wait_finish, -}; - -static int queue_init(void *priv, struct vb2_queue *src_vq, - struct vb2_queue *dst_vq) -{ - struct vicodec_ctx *ctx = priv; - int ret; - - src_vq->type = (multiplanar ? - V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE : - V4L2_BUF_TYPE_VIDEO_OUTPUT); - src_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; - src_vq->drv_priv = ctx; - src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); - src_vq->ops = &vicodec_qops; - src_vq->mem_ops = &vb2_vmalloc_memops; - src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; - if (ctx->is_enc) - src_vq->lock = &ctx->dev->stateful_enc.mutex; - else if (ctx->is_stateless) - src_vq->lock = &ctx->dev->stateless_dec.mutex; - else - src_vq->lock = &ctx->dev->stateful_dec.mutex; - src_vq->supports_requests = ctx->is_stateless; - src_vq->requires_requests = ctx->is_stateless; - ret = vb2_queue_init(src_vq); - if (ret) - return ret; - - dst_vq->type = (multiplanar ? - V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE : - V4L2_BUF_TYPE_VIDEO_CAPTURE); - dst_vq->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF; - dst_vq->drv_priv = ctx; - dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); - dst_vq->ops = &vicodec_qops; - dst_vq->mem_ops = &vb2_vmalloc_memops; - dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; - dst_vq->lock = src_vq->lock; - - return vb2_queue_init(dst_vq); -} - -static int vicodec_try_ctrl(struct v4l2_ctrl *ctrl) -{ - struct vicodec_ctx *ctx = container_of(ctrl->handler, - struct vicodec_ctx, hdl); - const struct v4l2_ctrl_fwht_params *params; - struct vicodec_q_data *q_dst = get_q_data(ctx, - V4L2_BUF_TYPE_VIDEO_CAPTURE); - - switch (ctrl->id) { - case V4L2_CID_MPEG_VIDEO_FWHT_PARAMS: - if (!q_dst->info) - return -EINVAL; - params = ctrl->p_new.p_fwht_params; - if (params->width > q_dst->coded_width || - params->width < MIN_WIDTH || - params->height > q_dst->coded_height || - params->height < MIN_HEIGHT) - return -EINVAL; - if (!validate_by_version(params->flags, params->version)) - return -EINVAL; - if (!validate_stateless_params_flags(params, q_dst->info)) - return -EINVAL; - return 0; - default: - return 0; - } - return 0; -} - -static void update_header_from_stateless_params(struct vicodec_ctx *ctx, - const struct v4l2_ctrl_fwht_params *params) -{ - struct fwht_cframe_hdr *p_hdr = &ctx->state.header; - - p_hdr->magic1 = FWHT_MAGIC1; - p_hdr->magic2 = FWHT_MAGIC2; - p_hdr->version = htonl(params->version); - p_hdr->width = htonl(params->width); - p_hdr->height = htonl(params->height); - p_hdr->flags = htonl(params->flags); - p_hdr->colorspace = htonl(params->colorspace); - p_hdr->xfer_func = htonl(params->xfer_func); - p_hdr->ycbcr_enc = htonl(params->ycbcr_enc); - p_hdr->quantization = htonl(params->quantization); -} - -static int vicodec_s_ctrl(struct v4l2_ctrl *ctrl) -{ - struct vicodec_ctx *ctx = container_of(ctrl->handler, - struct vicodec_ctx, hdl); - const struct v4l2_ctrl_fwht_params *params; - - switch (ctrl->id) { - case V4L2_CID_MPEG_VIDEO_GOP_SIZE: - ctx->state.gop_size = ctrl->val; - return 0; - case V4L2_CID_FWHT_I_FRAME_QP: - ctx->state.i_frame_qp = ctrl->val; - return 0; - case V4L2_CID_FWHT_P_FRAME_QP: - ctx->state.p_frame_qp = ctrl->val; - return 0; - case V4L2_CID_MPEG_VIDEO_FWHT_PARAMS: - params = ctrl->p_new.p_fwht_params; - update_header_from_stateless_params(ctx, params); - ctx->state.ref_frame_ts = params->backward_ref_ts; - return 0; - } - return -EINVAL; -} - -static const struct v4l2_ctrl_ops vicodec_ctrl_ops = { - .s_ctrl = vicodec_s_ctrl, - .try_ctrl = vicodec_try_ctrl, -}; - -static const struct v4l2_ctrl_config vicodec_ctrl_stateless_state = { - .ops = &vicodec_ctrl_ops, - .id = V4L2_CID_MPEG_VIDEO_FWHT_PARAMS, - .elem_size = sizeof(struct v4l2_ctrl_fwht_params), -}; - -/* - * File operations - */ -static int vicodec_open(struct file *file) -{ - const struct v4l2_fwht_pixfmt_info *info = v4l2_fwht_get_pixfmt(0); - struct video_device *vfd = video_devdata(file); - struct vicodec_dev *dev = video_drvdata(file); - struct vicodec_ctx *ctx = NULL; - struct v4l2_ctrl_handler *hdl; - unsigned int raw_size; - unsigned int comp_size; - int rc = 0; - - if (mutex_lock_interruptible(vfd->lock)) - return -ERESTARTSYS; - ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); - if (!ctx) { - rc = -ENOMEM; - goto open_unlock; - } - - if (vfd == &dev->stateful_enc.vfd) - ctx->is_enc = true; - else if (vfd == &dev->stateless_dec.vfd) - ctx->is_stateless = true; - - v4l2_fh_init(&ctx->fh, video_devdata(file)); - file->private_data = &ctx->fh; - ctx->dev = dev; - hdl = &ctx->hdl; - v4l2_ctrl_handler_init(hdl, 5); - v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_MPEG_VIDEO_GOP_SIZE, - 1, 16, 1, 10); - v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_FWHT_I_FRAME_QP, - 1, 31, 1, 20); - v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, V4L2_CID_FWHT_P_FRAME_QP, - 1, 31, 1, 20); - if (ctx->is_enc) - v4l2_ctrl_new_std(hdl, &vicodec_ctrl_ops, - V4L2_CID_MIN_BUFFERS_FOR_OUTPUT, 1, 1, 1, 1); - if (ctx->is_stateless) - v4l2_ctrl_new_custom(hdl, &vicodec_ctrl_stateless_state, NULL); - if (hdl->error) { - rc = hdl->error; - v4l2_ctrl_handler_free(hdl); - kfree(ctx); - goto open_unlock; - } - ctx->fh.ctrl_handler = hdl; - v4l2_ctrl_handler_setup(hdl); - - if (ctx->is_enc) - ctx->q_data[V4L2_M2M_SRC].info = info; - else if (ctx->is_stateless) - ctx->q_data[V4L2_M2M_SRC].info = &pixfmt_stateless_fwht; - else - ctx->q_data[V4L2_M2M_SRC].info = &pixfmt_fwht; - ctx->q_data[V4L2_M2M_SRC].coded_width = 1280; - ctx->q_data[V4L2_M2M_SRC].coded_height = 720; - ctx->q_data[V4L2_M2M_SRC].visible_width = 1280; - ctx->q_data[V4L2_M2M_SRC].visible_height = 720; - raw_size = 1280 * 720 * info->sizeimage_mult / info->sizeimage_div; - comp_size = 1280 * 720 * pixfmt_fwht.sizeimage_mult / - pixfmt_fwht.sizeimage_div; - if (ctx->is_enc) - ctx->q_data[V4L2_M2M_SRC].sizeimage = raw_size; - else if (ctx->is_stateless) - ctx->q_data[V4L2_M2M_SRC].sizeimage = comp_size; - else - ctx->q_data[V4L2_M2M_SRC].sizeimage = - comp_size + sizeof(struct fwht_cframe_hdr); - ctx->q_data[V4L2_M2M_DST] = ctx->q_data[V4L2_M2M_SRC]; - if (ctx->is_enc) { - ctx->q_data[V4L2_M2M_DST].info = &pixfmt_fwht; - ctx->q_data[V4L2_M2M_DST].sizeimage = - comp_size + sizeof(struct fwht_cframe_hdr); - } else { - ctx->q_data[V4L2_M2M_DST].info = info; - ctx->q_data[V4L2_M2M_DST].sizeimage = raw_size; - } - - ctx->state.colorspace = V4L2_COLORSPACE_REC709; - - if (ctx->is_enc) { - ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateful_enc.m2m_dev, - ctx, &queue_init); - ctx->lock = &dev->stateful_enc.lock; - } else if (ctx->is_stateless) { - ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateless_dec.m2m_dev, - ctx, &queue_init); - ctx->lock = &dev->stateless_dec.lock; - } else { - ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->stateful_dec.m2m_dev, - ctx, &queue_init); - ctx->lock = &dev->stateful_dec.lock; - } - - if (IS_ERR(ctx->fh.m2m_ctx)) { - rc = PTR_ERR(ctx->fh.m2m_ctx); - - v4l2_ctrl_handler_free(hdl); - v4l2_fh_exit(&ctx->fh); - kfree(ctx); - goto open_unlock; - } - - v4l2_fh_add(&ctx->fh); - -open_unlock: - mutex_unlock(vfd->lock); - return rc; -} - -static int vicodec_release(struct file *file) -{ - struct video_device *vfd = video_devdata(file); - struct vicodec_ctx *ctx = file2ctx(file); - - mutex_lock(vfd->lock); - v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); - mutex_unlock(vfd->lock); - v4l2_fh_del(&ctx->fh); - v4l2_fh_exit(&ctx->fh); - v4l2_ctrl_handler_free(&ctx->hdl); - kvfree(ctx->state.compressed_frame); - kfree(ctx); - - return 0; -} - -static int vicodec_request_validate(struct media_request *req) -{ - struct media_request_object *obj; - struct v4l2_ctrl_handler *parent_hdl, *hdl; - struct vicodec_ctx *ctx = NULL; - struct v4l2_ctrl *ctrl; - unsigned int count; - - list_for_each_entry(obj, &req->objects, list) { - struct vb2_buffer *vb; - - if (vb2_request_object_is_buffer(obj)) { - vb = container_of(obj, struct vb2_buffer, req_obj); - ctx = vb2_get_drv_priv(vb->vb2_queue); - - break; - } - } - - if (!ctx) { - pr_err("No buffer was provided with the request\n"); - return -ENOENT; - } - - count = vb2_request_buffer_cnt(req); - if (!count) { - v4l2_info(&ctx->dev->v4l2_dev, - "No buffer was provided with the request\n"); - return -ENOENT; - } else if (count > 1) { - v4l2_info(&ctx->dev->v4l2_dev, - "More than one buffer was provided with the request\n"); - return -EINVAL; - } - - parent_hdl = &ctx->hdl; - - hdl = v4l2_ctrl_request_hdl_find(req, parent_hdl); - if (!hdl) { - v4l2_info(&ctx->dev->v4l2_dev, "Missing codec control\n"); - return -ENOENT; - } - ctrl = v4l2_ctrl_request_hdl_ctrl_find(hdl, - vicodec_ctrl_stateless_state.id); - if (!ctrl) { - v4l2_info(&ctx->dev->v4l2_dev, - "Missing required codec control\n"); - return -ENOENT; - } - - return vb2_request_validate(req); -} - -static const struct v4l2_file_operations vicodec_fops = { - .owner = THIS_MODULE, - .open = vicodec_open, - .release = vicodec_release, - .poll = v4l2_m2m_fop_poll, - .unlocked_ioctl = video_ioctl2, - .mmap = v4l2_m2m_fop_mmap, -}; - -static const struct video_device vicodec_videodev = { - .name = VICODEC_NAME, - .vfl_dir = VFL_DIR_M2M, - .fops = &vicodec_fops, - .ioctl_ops = &vicodec_ioctl_ops, - .minor = -1, - .release = video_device_release_empty, -}; - -static const struct media_device_ops vicodec_m2m_media_ops = { - .req_validate = vicodec_request_validate, - .req_queue = v4l2_m2m_request_queue, -}; - -static const struct v4l2_m2m_ops m2m_ops = { - .device_run = device_run, - .job_ready = job_ready, -}; - -static int register_instance(struct vicodec_dev *dev, - struct vicodec_dev_instance *dev_instance, - const char *name, bool is_enc) -{ - struct video_device *vfd; - int ret; - - spin_lock_init(&dev_instance->lock); - mutex_init(&dev_instance->mutex); - dev_instance->m2m_dev = v4l2_m2m_init(&m2m_ops); - if (IS_ERR(dev_instance->m2m_dev)) { - v4l2_err(&dev->v4l2_dev, "Failed to init vicodec enc device\n"); - return PTR_ERR(dev_instance->m2m_dev); - } - - dev_instance->vfd = vicodec_videodev; - vfd = &dev_instance->vfd; - vfd->lock = &dev_instance->mutex; - vfd->v4l2_dev = &dev->v4l2_dev; - strscpy(vfd->name, name, sizeof(vfd->name)); - vfd->device_caps = V4L2_CAP_STREAMING | - (multiplanar ? V4L2_CAP_VIDEO_M2M_MPLANE : V4L2_CAP_VIDEO_M2M); - if (is_enc) { - v4l2_disable_ioctl(vfd, VIDIOC_DECODER_CMD); - v4l2_disable_ioctl(vfd, VIDIOC_TRY_DECODER_CMD); - } else { - v4l2_disable_ioctl(vfd, VIDIOC_ENCODER_CMD); - v4l2_disable_ioctl(vfd, VIDIOC_TRY_ENCODER_CMD); - } - video_set_drvdata(vfd, dev); - - ret = video_register_device(vfd, VFL_TYPE_VIDEO, 0); - if (ret) { - v4l2_err(&dev->v4l2_dev, "Failed to register video device '%s'\n", name); - v4l2_m2m_release(dev_instance->m2m_dev); - return ret; - } - v4l2_info(&dev->v4l2_dev, "Device '%s' registered as /dev/video%d\n", - name, vfd->num); - return 0; -} - -static void vicodec_v4l2_dev_release(struct v4l2_device *v4l2_dev) -{ - struct vicodec_dev *dev = container_of(v4l2_dev, struct vicodec_dev, v4l2_dev); - - v4l2_device_unregister(&dev->v4l2_dev); - v4l2_m2m_release(dev->stateful_enc.m2m_dev); - v4l2_m2m_release(dev->stateful_dec.m2m_dev); - v4l2_m2m_release(dev->stateless_dec.m2m_dev); -#ifdef CONFIG_MEDIA_CONTROLLER - media_device_cleanup(&dev->mdev); -#endif - kfree(dev); -} - -static int vicodec_probe(struct platform_device *pdev) -{ - struct vicodec_dev *dev; - int ret; - - dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (!dev) - return -ENOMEM; - - ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); - if (ret) - goto free_dev; - - dev->v4l2_dev.release = vicodec_v4l2_dev_release; - -#ifdef CONFIG_MEDIA_CONTROLLER - dev->mdev.dev = &pdev->dev; - strscpy(dev->mdev.model, "vicodec", sizeof(dev->mdev.model)); - strscpy(dev->mdev.bus_info, "platform:vicodec", - sizeof(dev->mdev.bus_info)); - media_device_init(&dev->mdev); - dev->mdev.ops = &vicodec_m2m_media_ops; - dev->v4l2_dev.mdev = &dev->mdev; -#endif - - platform_set_drvdata(pdev, dev); - - if (register_instance(dev, &dev->stateful_enc, - "stateful-encoder", true)) - goto unreg_dev; - - if (register_instance(dev, &dev->stateful_dec, - "stateful-decoder", false)) - goto unreg_sf_enc; - - if (register_instance(dev, &dev->stateless_dec, - "stateless-decoder", false)) - goto unreg_sf_dec; - -#ifdef CONFIG_MEDIA_CONTROLLER - ret = v4l2_m2m_register_media_controller(dev->stateful_enc.m2m_dev, - &dev->stateful_enc.vfd, - MEDIA_ENT_F_PROC_VIDEO_ENCODER); - if (ret) { - v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller for enc\n"); - goto unreg_m2m; - } - - ret = v4l2_m2m_register_media_controller(dev->stateful_dec.m2m_dev, - &dev->stateful_dec.vfd, - MEDIA_ENT_F_PROC_VIDEO_DECODER); - if (ret) { - v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller for dec\n"); - goto unreg_m2m_sf_enc_mc; - } - - ret = v4l2_m2m_register_media_controller(dev->stateless_dec.m2m_dev, - &dev->stateless_dec.vfd, - MEDIA_ENT_F_PROC_VIDEO_DECODER); - if (ret) { - v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller for stateless dec\n"); - goto unreg_m2m_sf_dec_mc; - } - - ret = media_device_register(&dev->mdev); - if (ret) { - v4l2_err(&dev->v4l2_dev, "Failed to register mem2mem media device\n"); - goto unreg_m2m_sl_dec_mc; - } -#endif - return 0; - -#ifdef CONFIG_MEDIA_CONTROLLER -unreg_m2m_sl_dec_mc: - v4l2_m2m_unregister_media_controller(dev->stateless_dec.m2m_dev); -unreg_m2m_sf_dec_mc: - v4l2_m2m_unregister_media_controller(dev->stateful_dec.m2m_dev); -unreg_m2m_sf_enc_mc: - v4l2_m2m_unregister_media_controller(dev->stateful_enc.m2m_dev); -unreg_m2m: - video_unregister_device(&dev->stateless_dec.vfd); - v4l2_m2m_release(dev->stateless_dec.m2m_dev); -#endif -unreg_sf_dec: - video_unregister_device(&dev->stateful_dec.vfd); - v4l2_m2m_release(dev->stateful_dec.m2m_dev); -unreg_sf_enc: - video_unregister_device(&dev->stateful_enc.vfd); - v4l2_m2m_release(dev->stateful_enc.m2m_dev); -unreg_dev: - v4l2_device_unregister(&dev->v4l2_dev); -free_dev: - kfree(dev); - - return ret; -} - -static int vicodec_remove(struct platform_device *pdev) -{ - struct vicodec_dev *dev = platform_get_drvdata(pdev); - - v4l2_info(&dev->v4l2_dev, "Removing " VICODEC_NAME); - -#ifdef CONFIG_MEDIA_CONTROLLER - media_device_unregister(&dev->mdev); - v4l2_m2m_unregister_media_controller(dev->stateful_enc.m2m_dev); - v4l2_m2m_unregister_media_controller(dev->stateful_dec.m2m_dev); - v4l2_m2m_unregister_media_controller(dev->stateless_dec.m2m_dev); -#endif - - video_unregister_device(&dev->stateful_enc.vfd); - video_unregister_device(&dev->stateful_dec.vfd); - video_unregister_device(&dev->stateless_dec.vfd); - v4l2_device_put(&dev->v4l2_dev); - - return 0; -} - -static struct platform_driver vicodec_pdrv = { - .probe = vicodec_probe, - .remove = vicodec_remove, - .driver = { - .name = VICODEC_NAME, - }, -}; - -static void __exit vicodec_exit(void) -{ - platform_driver_unregister(&vicodec_pdrv); - platform_device_unregister(&vicodec_pdev); -} - -static int __init vicodec_init(void) -{ - int ret; - - ret = platform_device_register(&vicodec_pdev); - if (ret) - return ret; - - ret = platform_driver_register(&vicodec_pdrv); - if (ret) - platform_device_unregister(&vicodec_pdev); - - return ret; -} - -module_init(vicodec_init); -module_exit(vicodec_exit); |