Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Rick Chang | 6742 | 98.94% | 1 | 9.09% |
Ezequiel García | 31 | 0.45% | 1 | 9.09% |
Minghsiu Tsai | 16 | 0.23% | 1 | 9.09% |
Ryder Lee | 11 | 0.16% | 1 | 9.09% |
Arnd Bergmann | 4 | 0.06% | 1 | 9.09% |
Randy Dunlap | 3 | 0.04% | 1 | 9.09% |
Thomas Gleixner | 2 | 0.03% | 1 | 9.09% |
Mauro Carvalho Chehab | 2 | 0.03% | 1 | 9.09% |
Julia Lawall | 1 | 0.01% | 1 | 9.09% |
Gustavo A. R. Silva | 1 | 0.01% | 1 | 9.09% |
Fengguang Wu | 1 | 0.01% | 1 | 9.09% |
Total | 6814 | 11 |
// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2016 MediaTek Inc. * Author: Ming Hsiu Tsai <minghsiu.tsai@mediatek.com> * Rick Chang <rick.chang@mediatek.com> */ #include <linux/clk.h> #include <linux/err.h> #include <linux/interrupt.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <media/v4l2-event.h> #include <media/v4l2-mem2mem.h> #include <media/v4l2-ioctl.h> #include <media/videobuf2-core.h> #include <media/videobuf2-dma-contig.h> #include <soc/mediatek/smi.h> #include "mtk_jpeg_hw.h" #include "mtk_jpeg_core.h" #include "mtk_jpeg_parse.h" static struct mtk_jpeg_fmt mtk_jpeg_formats[] = { { .fourcc = V4L2_PIX_FMT_JPEG, .colplanes = 1, .flags = MTK_JPEG_FMT_FLAG_DEC_OUTPUT, }, { .fourcc = V4L2_PIX_FMT_YUV420M, .h_sample = {4, 2, 2}, .v_sample = {4, 2, 2}, .colplanes = 3, .h_align = 5, .v_align = 4, .flags = MTK_JPEG_FMT_FLAG_DEC_CAPTURE, }, { .fourcc = V4L2_PIX_FMT_YUV422M, .h_sample = {4, 2, 2}, .v_sample = {4, 4, 4}, .colplanes = 3, .h_align = 5, .v_align = 3, .flags = MTK_JPEG_FMT_FLAG_DEC_CAPTURE, }, }; #define MTK_JPEG_NUM_FORMATS ARRAY_SIZE(mtk_jpeg_formats) enum { MTK_JPEG_BUF_FLAGS_INIT = 0, MTK_JPEG_BUF_FLAGS_LAST_FRAME = 1, }; struct mtk_jpeg_src_buf { struct vb2_v4l2_buffer b; struct list_head list; int flags; struct mtk_jpeg_dec_param dec_param; }; static int debug; module_param(debug, int, 0644); static inline struct mtk_jpeg_ctx *mtk_jpeg_fh_to_ctx(struct v4l2_fh *fh) { return container_of(fh, struct mtk_jpeg_ctx, fh); } static inline struct mtk_jpeg_src_buf *mtk_jpeg_vb2_to_srcbuf( struct vb2_buffer *vb) { return container_of(to_vb2_v4l2_buffer(vb), struct mtk_jpeg_src_buf, b); } static int mtk_jpeg_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { struct mtk_jpeg_dev *jpeg = video_drvdata(file); strscpy(cap->driver, MTK_JPEG_NAME " decoder", sizeof(cap->driver)); strscpy(cap->card, MTK_JPEG_NAME " decoder", sizeof(cap->card)); snprintf(cap->bus_info, sizeof(cap->bus_info), "platform:%s", dev_name(jpeg->dev)); return 0; } static int mtk_jpeg_enum_fmt(struct mtk_jpeg_fmt *mtk_jpeg_formats, int n, struct v4l2_fmtdesc *f, u32 type) { int i, num = 0; for (i = 0; i < n; ++i) { if (mtk_jpeg_formats[i].flags & type) { if (num == f->index) break; ++num; } } if (i >= n) return -EINVAL; f->pixelformat = mtk_jpeg_formats[i].fourcc; return 0; } static int mtk_jpeg_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *f) { return mtk_jpeg_enum_fmt(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS, f, MTK_JPEG_FMT_FLAG_DEC_CAPTURE); } static int mtk_jpeg_enum_fmt_vid_out(struct file *file, void *priv, struct v4l2_fmtdesc *f) { return mtk_jpeg_enum_fmt(mtk_jpeg_formats, MTK_JPEG_NUM_FORMATS, f, MTK_JPEG_FMT_FLAG_DEC_OUTPUT); } static struct mtk_jpeg_q_data *mtk_jpeg_get_q_data(struct mtk_jpeg_ctx *ctx, enum v4l2_buf_type type) { if (V4L2_TYPE_IS_OUTPUT(type)) return &ctx->out_q; return &ctx->cap_q; } static struct mtk_jpeg_fmt *mtk_jpeg_find_format(struct mtk_jpeg_ctx *ctx, u32 pixelformat, unsigned int fmt_type) { unsigned int k, fmt_flag; fmt_flag = (fmt_type == MTK_JPEG_FMT_TYPE_OUTPUT) ? MTK_JPEG_FMT_FLAG_DEC_OUTPUT : MTK_JPEG_FMT_FLAG_DEC_CAPTURE; for (k = 0; k < MTK_JPEG_NUM_FORMATS; k++) { struct mtk_jpeg_fmt *fmt = &mtk_jpeg_formats[k]; if (fmt->fourcc == pixelformat && fmt->flags & fmt_flag) return fmt; } return NULL; } static void mtk_jpeg_bound_align_image(u32 *w, unsigned int wmin, unsigned int wmax, unsigned int walign, u32 *h, unsigned int hmin, unsigned int hmax, unsigned int halign) { int width, height, w_step, h_step; width = *w; height = *h; w_step = 1 << walign; h_step = 1 << halign; v4l_bound_align_image(w, wmin, wmax, walign, h, hmin, hmax, halign, 0); if (*w < width && (*w + w_step) <= wmax) *w += w_step; if (*h < height && (*h + h_step) <= hmax) *h += h_step; } static void mtk_jpeg_adjust_fmt_mplane(struct mtk_jpeg_ctx *ctx, struct v4l2_format *f) { struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp; struct mtk_jpeg_q_data *q_data; int i; q_data = mtk_jpeg_get_q_data(ctx, f->type); pix_mp->width = q_data->w; pix_mp->height = q_data->h; pix_mp->pixelformat = q_data->fmt->fourcc; pix_mp->num_planes = q_data->fmt->colplanes; for (i = 0; i < pix_mp->num_planes; i++) { pix_mp->plane_fmt[i].bytesperline = q_data->bytesperline[i]; pix_mp->plane_fmt[i].sizeimage = q_data->sizeimage[i]; } } static int mtk_jpeg_try_fmt_mplane(struct v4l2_format *f, struct mtk_jpeg_fmt *fmt, struct mtk_jpeg_ctx *ctx, int q_type) { struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp; struct mtk_jpeg_dev *jpeg = ctx->jpeg; int i; memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved)); pix_mp->field = V4L2_FIELD_NONE; if (ctx->state != MTK_JPEG_INIT) { mtk_jpeg_adjust_fmt_mplane(ctx, f); goto end; } pix_mp->num_planes = fmt->colplanes; pix_mp->pixelformat = fmt->fourcc; if (q_type == MTK_JPEG_FMT_TYPE_OUTPUT) { struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[0]; mtk_jpeg_bound_align_image(&pix_mp->width, MTK_JPEG_MIN_WIDTH, MTK_JPEG_MAX_WIDTH, 0, &pix_mp->height, MTK_JPEG_MIN_HEIGHT, MTK_JPEG_MAX_HEIGHT, 0); memset(pfmt->reserved, 0, sizeof(pfmt->reserved)); pfmt->bytesperline = 0; /* Source size must be aligned to 128 */ pfmt->sizeimage = mtk_jpeg_align(pfmt->sizeimage, 128); if (pfmt->sizeimage == 0) pfmt->sizeimage = MTK_JPEG_DEFAULT_SIZEIMAGE; goto end; } /* type is MTK_JPEG_FMT_TYPE_CAPTURE */ mtk_jpeg_bound_align_image(&pix_mp->width, MTK_JPEG_MIN_WIDTH, MTK_JPEG_MAX_WIDTH, fmt->h_align, &pix_mp->height, MTK_JPEG_MIN_HEIGHT, MTK_JPEG_MAX_HEIGHT, fmt->v_align); for (i = 0; i < fmt->colplanes; i++) { struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[i]; u32 stride = pix_mp->width * fmt->h_sample[i] / 4; u32 h = pix_mp->height * fmt->v_sample[i] / 4; memset(pfmt->reserved, 0, sizeof(pfmt->reserved)); pfmt->bytesperline = stride; pfmt->sizeimage = stride * h; } end: v4l2_dbg(2, debug, &jpeg->v4l2_dev, "wxh:%ux%u\n", pix_mp->width, pix_mp->height); for (i = 0; i < pix_mp->num_planes; i++) { v4l2_dbg(2, debug, &jpeg->v4l2_dev, "plane[%d] bpl=%u, size=%u\n", i, pix_mp->plane_fmt[i].bytesperline, pix_mp->plane_fmt[i].sizeimage); } return 0; } static int mtk_jpeg_g_fmt_vid_mplane(struct file *file, void *priv, struct v4l2_format *f) { struct vb2_queue *vq; struct mtk_jpeg_q_data *q_data = NULL; struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp; struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv); struct mtk_jpeg_dev *jpeg = ctx->jpeg; int i; vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); if (!vq) return -EINVAL; q_data = mtk_jpeg_get_q_data(ctx, f->type); memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved)); pix_mp->width = q_data->w; pix_mp->height = q_data->h; pix_mp->field = V4L2_FIELD_NONE; pix_mp->pixelformat = q_data->fmt->fourcc; pix_mp->num_planes = q_data->fmt->colplanes; pix_mp->colorspace = ctx->colorspace; pix_mp->ycbcr_enc = ctx->ycbcr_enc; pix_mp->xfer_func = ctx->xfer_func; pix_mp->quantization = ctx->quantization; v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) g_fmt:%c%c%c%c wxh:%ux%u\n", f->type, (pix_mp->pixelformat & 0xff), (pix_mp->pixelformat >> 8 & 0xff), (pix_mp->pixelformat >> 16 & 0xff), (pix_mp->pixelformat >> 24 & 0xff), pix_mp->width, pix_mp->height); for (i = 0; i < pix_mp->num_planes; i++) { struct v4l2_plane_pix_format *pfmt = &pix_mp->plane_fmt[i]; pfmt->bytesperline = q_data->bytesperline[i]; pfmt->sizeimage = q_data->sizeimage[i]; memset(pfmt->reserved, 0, sizeof(pfmt->reserved)); v4l2_dbg(1, debug, &jpeg->v4l2_dev, "plane[%d] bpl=%u, size=%u\n", i, pfmt->bytesperline, pfmt->sizeimage); } return 0; } static int mtk_jpeg_try_fmt_vid_cap_mplane(struct file *file, void *priv, struct v4l2_format *f) { struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv); struct mtk_jpeg_fmt *fmt; fmt = mtk_jpeg_find_format(ctx, f->fmt.pix_mp.pixelformat, MTK_JPEG_FMT_TYPE_CAPTURE); if (!fmt) fmt = ctx->cap_q.fmt; v4l2_dbg(2, debug, &ctx->jpeg->v4l2_dev, "(%d) try_fmt:%c%c%c%c\n", f->type, (fmt->fourcc & 0xff), (fmt->fourcc >> 8 & 0xff), (fmt->fourcc >> 16 & 0xff), (fmt->fourcc >> 24 & 0xff)); return mtk_jpeg_try_fmt_mplane(f, fmt, ctx, MTK_JPEG_FMT_TYPE_CAPTURE); } static int mtk_jpeg_try_fmt_vid_out_mplane(struct file *file, void *priv, struct v4l2_format *f) { struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv); struct mtk_jpeg_fmt *fmt; fmt = mtk_jpeg_find_format(ctx, f->fmt.pix_mp.pixelformat, MTK_JPEG_FMT_TYPE_OUTPUT); if (!fmt) fmt = ctx->out_q.fmt; v4l2_dbg(2, debug, &ctx->jpeg->v4l2_dev, "(%d) try_fmt:%c%c%c%c\n", f->type, (fmt->fourcc & 0xff), (fmt->fourcc >> 8 & 0xff), (fmt->fourcc >> 16 & 0xff), (fmt->fourcc >> 24 & 0xff)); return mtk_jpeg_try_fmt_mplane(f, fmt, ctx, MTK_JPEG_FMT_TYPE_OUTPUT); } static int mtk_jpeg_s_fmt_mplane(struct mtk_jpeg_ctx *ctx, struct v4l2_format *f) { struct vb2_queue *vq; struct mtk_jpeg_q_data *q_data = NULL; struct v4l2_pix_format_mplane *pix_mp = &f->fmt.pix_mp; struct mtk_jpeg_dev *jpeg = ctx->jpeg; unsigned int f_type; int i; vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); if (!vq) return -EINVAL; q_data = mtk_jpeg_get_q_data(ctx, f->type); if (vb2_is_busy(vq)) { v4l2_err(&jpeg->v4l2_dev, "queue busy\n"); return -EBUSY; } f_type = V4L2_TYPE_IS_OUTPUT(f->type) ? MTK_JPEG_FMT_TYPE_OUTPUT : MTK_JPEG_FMT_TYPE_CAPTURE; q_data->fmt = mtk_jpeg_find_format(ctx, pix_mp->pixelformat, f_type); q_data->w = pix_mp->width; q_data->h = pix_mp->height; ctx->colorspace = pix_mp->colorspace; ctx->ycbcr_enc = pix_mp->ycbcr_enc; ctx->xfer_func = pix_mp->xfer_func; ctx->quantization = pix_mp->quantization; v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) s_fmt:%c%c%c%c wxh:%ux%u\n", f->type, (q_data->fmt->fourcc & 0xff), (q_data->fmt->fourcc >> 8 & 0xff), (q_data->fmt->fourcc >> 16 & 0xff), (q_data->fmt->fourcc >> 24 & 0xff), q_data->w, q_data->h); for (i = 0; i < q_data->fmt->colplanes; i++) { q_data->bytesperline[i] = pix_mp->plane_fmt[i].bytesperline; q_data->sizeimage[i] = pix_mp->plane_fmt[i].sizeimage; v4l2_dbg(1, debug, &jpeg->v4l2_dev, "plane[%d] bpl=%u, size=%u\n", i, q_data->bytesperline[i], q_data->sizeimage[i]); } return 0; } static int mtk_jpeg_s_fmt_vid_out_mplane(struct file *file, void *priv, struct v4l2_format *f) { int ret; ret = mtk_jpeg_try_fmt_vid_out_mplane(file, priv, f); if (ret) return ret; return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f); } static int mtk_jpeg_s_fmt_vid_cap_mplane(struct file *file, void *priv, struct v4l2_format *f) { int ret; ret = mtk_jpeg_try_fmt_vid_cap_mplane(file, priv, f); if (ret) return ret; return mtk_jpeg_s_fmt_mplane(mtk_jpeg_fh_to_ctx(priv), f); } static void mtk_jpeg_queue_src_chg_event(struct mtk_jpeg_ctx *ctx) { static const struct v4l2_event ev_src_ch = { .type = V4L2_EVENT_SOURCE_CHANGE, .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION, }; v4l2_event_queue_fh(&ctx->fh, &ev_src_ch); } static int mtk_jpeg_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub) { switch (sub->type) { case V4L2_EVENT_SOURCE_CHANGE: return v4l2_src_change_event_subscribe(fh, sub); default: return -EINVAL; } } static int mtk_jpeg_g_selection(struct file *file, void *priv, struct v4l2_selection *s) { struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv); if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; switch (s->target) { case V4L2_SEL_TGT_COMPOSE: case V4L2_SEL_TGT_COMPOSE_DEFAULT: s->r.width = ctx->out_q.w; s->r.height = ctx->out_q.h; s->r.left = 0; s->r.top = 0; break; case V4L2_SEL_TGT_COMPOSE_BOUNDS: case V4L2_SEL_TGT_COMPOSE_PADDED: s->r.width = ctx->cap_q.w; s->r.height = ctx->cap_q.h; s->r.left = 0; s->r.top = 0; break; default: return -EINVAL; } return 0; } static int mtk_jpeg_s_selection(struct file *file, void *priv, struct v4l2_selection *s) { struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv); if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; switch (s->target) { case V4L2_SEL_TGT_COMPOSE: s->r.left = 0; s->r.top = 0; s->r.width = ctx->out_q.w; s->r.height = ctx->out_q.h; break; default: return -EINVAL; } return 0; } static int mtk_jpeg_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) { struct v4l2_fh *fh = file->private_data; struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(priv); struct vb2_queue *vq; struct vb2_buffer *vb; struct mtk_jpeg_src_buf *jpeg_src_buf; if (buf->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) goto end; vq = v4l2_m2m_get_vq(fh->m2m_ctx, buf->type); if (buf->index >= vq->num_buffers) { dev_err(ctx->jpeg->dev, "buffer index out of range\n"); return -EINVAL; } vb = vq->bufs[buf->index]; jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(vb); jpeg_src_buf->flags = (buf->m.planes[0].bytesused == 0) ? MTK_JPEG_BUF_FLAGS_LAST_FRAME : MTK_JPEG_BUF_FLAGS_INIT; end: return v4l2_m2m_qbuf(file, fh->m2m_ctx, buf); } static const struct v4l2_ioctl_ops mtk_jpeg_ioctl_ops = { .vidioc_querycap = mtk_jpeg_querycap, .vidioc_enum_fmt_vid_cap_mplane = mtk_jpeg_enum_fmt_vid_cap, .vidioc_enum_fmt_vid_out_mplane = mtk_jpeg_enum_fmt_vid_out, .vidioc_try_fmt_vid_cap_mplane = mtk_jpeg_try_fmt_vid_cap_mplane, .vidioc_try_fmt_vid_out_mplane = mtk_jpeg_try_fmt_vid_out_mplane, .vidioc_g_fmt_vid_cap_mplane = mtk_jpeg_g_fmt_vid_mplane, .vidioc_g_fmt_vid_out_mplane = mtk_jpeg_g_fmt_vid_mplane, .vidioc_s_fmt_vid_cap_mplane = mtk_jpeg_s_fmt_vid_cap_mplane, .vidioc_s_fmt_vid_out_mplane = mtk_jpeg_s_fmt_vid_out_mplane, .vidioc_qbuf = mtk_jpeg_qbuf, .vidioc_subscribe_event = mtk_jpeg_subscribe_event, .vidioc_g_selection = mtk_jpeg_g_selection, .vidioc_s_selection = mtk_jpeg_s_selection, .vidioc_create_bufs = v4l2_m2m_ioctl_create_bufs, .vidioc_prepare_buf = v4l2_m2m_ioctl_prepare_buf, .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, .vidioc_expbuf = v4l2_m2m_ioctl_expbuf, .vidioc_streamon = v4l2_m2m_ioctl_streamon, .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, .vidioc_unsubscribe_event = v4l2_event_unsubscribe, }; static int mtk_jpeg_queue_setup(struct vb2_queue *q, unsigned int *num_buffers, unsigned int *num_planes, unsigned int sizes[], struct device *alloc_ctxs[]) { struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q); struct mtk_jpeg_q_data *q_data = NULL; struct mtk_jpeg_dev *jpeg = ctx->jpeg; int i; v4l2_dbg(1, debug, &jpeg->v4l2_dev, "(%d) buf_req count=%u\n", q->type, *num_buffers); q_data = mtk_jpeg_get_q_data(ctx, q->type); if (!q_data) return -EINVAL; *num_planes = q_data->fmt->colplanes; for (i = 0; i < q_data->fmt->colplanes; i++) { sizes[i] = q_data->sizeimage[i]; v4l2_dbg(1, debug, &jpeg->v4l2_dev, "sizeimage[%d]=%u\n", i, sizes[i]); } return 0; } static int mtk_jpeg_buf_prepare(struct vb2_buffer *vb) { struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); struct mtk_jpeg_q_data *q_data = NULL; int i; q_data = mtk_jpeg_get_q_data(ctx, vb->vb2_queue->type); if (!q_data) return -EINVAL; for (i = 0; i < q_data->fmt->colplanes; i++) vb2_set_plane_payload(vb, i, q_data->sizeimage[i]); return 0; } static bool mtk_jpeg_check_resolution_change(struct mtk_jpeg_ctx *ctx, struct mtk_jpeg_dec_param *param) { struct mtk_jpeg_dev *jpeg = ctx->jpeg; struct mtk_jpeg_q_data *q_data; q_data = &ctx->out_q; if (q_data->w != param->pic_w || q_data->h != param->pic_h) { v4l2_dbg(1, debug, &jpeg->v4l2_dev, "Picture size change\n"); return true; } q_data = &ctx->cap_q; if (q_data->fmt != mtk_jpeg_find_format(ctx, param->dst_fourcc, MTK_JPEG_FMT_TYPE_CAPTURE)) { v4l2_dbg(1, debug, &jpeg->v4l2_dev, "format change\n"); return true; } return false; } static void mtk_jpeg_set_queue_data(struct mtk_jpeg_ctx *ctx, struct mtk_jpeg_dec_param *param) { struct mtk_jpeg_dev *jpeg = ctx->jpeg; struct mtk_jpeg_q_data *q_data; int i; q_data = &ctx->out_q; q_data->w = param->pic_w; q_data->h = param->pic_h; q_data = &ctx->cap_q; q_data->w = param->dec_w; q_data->h = param->dec_h; q_data->fmt = mtk_jpeg_find_format(ctx, param->dst_fourcc, MTK_JPEG_FMT_TYPE_CAPTURE); for (i = 0; i < q_data->fmt->colplanes; i++) { q_data->bytesperline[i] = param->mem_stride[i]; q_data->sizeimage[i] = param->comp_size[i]; } v4l2_dbg(1, debug, &jpeg->v4l2_dev, "set_parse cap:%c%c%c%c pic(%u, %u), buf(%u, %u)\n", (param->dst_fourcc & 0xff), (param->dst_fourcc >> 8 & 0xff), (param->dst_fourcc >> 16 & 0xff), (param->dst_fourcc >> 24 & 0xff), param->pic_w, param->pic_h, param->dec_w, param->dec_h); } static void mtk_jpeg_buf_queue(struct vb2_buffer *vb) { struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); struct mtk_jpeg_dec_param *param; struct mtk_jpeg_dev *jpeg = ctx->jpeg; struct mtk_jpeg_src_buf *jpeg_src_buf; bool header_valid; v4l2_dbg(2, debug, &jpeg->v4l2_dev, "(%d) buf_q id=%d, vb=%p\n", vb->vb2_queue->type, vb->index, vb); if (vb->vb2_queue->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) goto end; jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(vb); param = &jpeg_src_buf->dec_param; memset(param, 0, sizeof(*param)); if (jpeg_src_buf->flags & MTK_JPEG_BUF_FLAGS_LAST_FRAME) { v4l2_dbg(1, debug, &jpeg->v4l2_dev, "Got eos\n"); goto end; } header_valid = mtk_jpeg_parse(param, (u8 *)vb2_plane_vaddr(vb, 0), vb2_get_plane_payload(vb, 0)); if (!header_valid) { v4l2_err(&jpeg->v4l2_dev, "Header invalid.\n"); vb2_buffer_done(vb, VB2_BUF_STATE_ERROR); return; } if (ctx->state == MTK_JPEG_INIT) { struct vb2_queue *dst_vq = v4l2_m2m_get_vq( ctx->fh.m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); mtk_jpeg_queue_src_chg_event(ctx); mtk_jpeg_set_queue_data(ctx, param); ctx->state = vb2_is_streaming(dst_vq) ? MTK_JPEG_SOURCE_CHANGE : MTK_JPEG_RUNNING; } end: v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, to_vb2_v4l2_buffer(vb)); } static struct vb2_v4l2_buffer *mtk_jpeg_buf_remove(struct mtk_jpeg_ctx *ctx, enum v4l2_buf_type type) { if (V4L2_TYPE_IS_OUTPUT(type)) return v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); else return v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); } static int mtk_jpeg_start_streaming(struct vb2_queue *q, unsigned int count) { struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q); struct vb2_v4l2_buffer *vb; int ret = 0; ret = pm_runtime_get_sync(ctx->jpeg->dev); if (ret < 0) goto err; return 0; err: while ((vb = mtk_jpeg_buf_remove(ctx, q->type))) v4l2_m2m_buf_done(vb, VB2_BUF_STATE_QUEUED); return ret; } static void mtk_jpeg_stop_streaming(struct vb2_queue *q) { struct mtk_jpeg_ctx *ctx = vb2_get_drv_priv(q); struct vb2_v4l2_buffer *vb; /* * STREAMOFF is an acknowledgment for source change event. * Before STREAMOFF, we still have to return the old resolution and * subsampling. Update capture queue when the stream is off. */ if (ctx->state == MTK_JPEG_SOURCE_CHANGE && !V4L2_TYPE_IS_OUTPUT(q->type)) { struct mtk_jpeg_src_buf *src_buf; vb = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); src_buf = mtk_jpeg_vb2_to_srcbuf(&vb->vb2_buf); mtk_jpeg_set_queue_data(ctx, &src_buf->dec_param); ctx->state = MTK_JPEG_RUNNING; } else if (V4L2_TYPE_IS_OUTPUT(q->type)) { ctx->state = MTK_JPEG_INIT; } while ((vb = mtk_jpeg_buf_remove(ctx, q->type))) v4l2_m2m_buf_done(vb, VB2_BUF_STATE_ERROR); pm_runtime_put_sync(ctx->jpeg->dev); } static const struct vb2_ops mtk_jpeg_qops = { .queue_setup = mtk_jpeg_queue_setup, .buf_prepare = mtk_jpeg_buf_prepare, .buf_queue = mtk_jpeg_buf_queue, .wait_prepare = vb2_ops_wait_prepare, .wait_finish = vb2_ops_wait_finish, .start_streaming = mtk_jpeg_start_streaming, .stop_streaming = mtk_jpeg_stop_streaming, }; static void mtk_jpeg_set_dec_src(struct mtk_jpeg_ctx *ctx, struct vb2_buffer *src_buf, struct mtk_jpeg_bs *bs) { bs->str_addr = vb2_dma_contig_plane_dma_addr(src_buf, 0); bs->end_addr = bs->str_addr + mtk_jpeg_align(vb2_get_plane_payload(src_buf, 0), 16); bs->size = mtk_jpeg_align(vb2_plane_size(src_buf, 0), 128); } static int mtk_jpeg_set_dec_dst(struct mtk_jpeg_ctx *ctx, struct mtk_jpeg_dec_param *param, struct vb2_buffer *dst_buf, struct mtk_jpeg_fb *fb) { int i; if (param->comp_num != dst_buf->num_planes) { dev_err(ctx->jpeg->dev, "plane number mismatch (%u != %u)\n", param->comp_num, dst_buf->num_planes); return -EINVAL; } for (i = 0; i < dst_buf->num_planes; i++) { if (vb2_plane_size(dst_buf, i) < param->comp_size[i]) { dev_err(ctx->jpeg->dev, "buffer size is underflow (%lu < %u)\n", vb2_plane_size(dst_buf, 0), param->comp_size[i]); return -EINVAL; } fb->plane_addr[i] = vb2_dma_contig_plane_dma_addr(dst_buf, i); } return 0; } static void mtk_jpeg_device_run(void *priv) { struct mtk_jpeg_ctx *ctx = priv; struct mtk_jpeg_dev *jpeg = ctx->jpeg; struct vb2_v4l2_buffer *src_buf, *dst_buf; enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR; unsigned long flags; struct mtk_jpeg_src_buf *jpeg_src_buf; struct mtk_jpeg_bs bs; struct mtk_jpeg_fb fb; int i; src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(&src_buf->vb2_buf); if (jpeg_src_buf->flags & MTK_JPEG_BUF_FLAGS_LAST_FRAME) { for (i = 0; i < dst_buf->vb2_buf.num_planes; i++) vb2_set_plane_payload(&dst_buf->vb2_buf, i, 0); buf_state = VB2_BUF_STATE_DONE; goto dec_end; } if (mtk_jpeg_check_resolution_change(ctx, &jpeg_src_buf->dec_param)) { mtk_jpeg_queue_src_chg_event(ctx); ctx->state = MTK_JPEG_SOURCE_CHANGE; v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx); return; } mtk_jpeg_set_dec_src(ctx, &src_buf->vb2_buf, &bs); if (mtk_jpeg_set_dec_dst(ctx, &jpeg_src_buf->dec_param, &dst_buf->vb2_buf, &fb)) goto dec_end; spin_lock_irqsave(&jpeg->hw_lock, flags); mtk_jpeg_dec_reset(jpeg->dec_reg_base); mtk_jpeg_dec_set_config(jpeg->dec_reg_base, &jpeg_src_buf->dec_param, &bs, &fb); mtk_jpeg_dec_start(jpeg->dec_reg_base); spin_unlock_irqrestore(&jpeg->hw_lock, flags); return; dec_end: v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); v4l2_m2m_buf_done(src_buf, buf_state); v4l2_m2m_buf_done(dst_buf, buf_state); v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx); } static int mtk_jpeg_job_ready(void *priv) { struct mtk_jpeg_ctx *ctx = priv; return (ctx->state == MTK_JPEG_RUNNING) ? 1 : 0; } static const struct v4l2_m2m_ops mtk_jpeg_m2m_ops = { .device_run = mtk_jpeg_device_run, .job_ready = mtk_jpeg_job_ready, }; static int mtk_jpeg_queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq) { struct mtk_jpeg_ctx *ctx = priv; int ret; src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE; src_vq->io_modes = VB2_DMABUF | VB2_MMAP; src_vq->drv_priv = ctx; src_vq->buf_struct_size = sizeof(struct mtk_jpeg_src_buf); src_vq->ops = &mtk_jpeg_qops; src_vq->mem_ops = &vb2_dma_contig_memops; src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; src_vq->lock = &ctx->jpeg->lock; src_vq->dev = ctx->jpeg->dev; ret = vb2_queue_init(src_vq); if (ret) return ret; dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE; dst_vq->io_modes = VB2_DMABUF | VB2_MMAP; dst_vq->drv_priv = ctx; dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); dst_vq->ops = &mtk_jpeg_qops; dst_vq->mem_ops = &vb2_dma_contig_memops; dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; dst_vq->lock = &ctx->jpeg->lock; dst_vq->dev = ctx->jpeg->dev; ret = vb2_queue_init(dst_vq); return ret; } static void mtk_jpeg_clk_on(struct mtk_jpeg_dev *jpeg) { int ret; ret = mtk_smi_larb_get(jpeg->larb); if (ret) dev_err(jpeg->dev, "mtk_smi_larb_get larbvdec fail %d\n", ret); clk_prepare_enable(jpeg->clk_jdec_smi); clk_prepare_enable(jpeg->clk_jdec); } static void mtk_jpeg_clk_off(struct mtk_jpeg_dev *jpeg) { clk_disable_unprepare(jpeg->clk_jdec); clk_disable_unprepare(jpeg->clk_jdec_smi); mtk_smi_larb_put(jpeg->larb); } static irqreturn_t mtk_jpeg_dec_irq(int irq, void *priv) { struct mtk_jpeg_dev *jpeg = priv; struct mtk_jpeg_ctx *ctx; struct vb2_v4l2_buffer *src_buf, *dst_buf; struct mtk_jpeg_src_buf *jpeg_src_buf; enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR; u32 dec_irq_ret; u32 dec_ret; int i; dec_ret = mtk_jpeg_dec_get_int_status(jpeg->dec_reg_base); dec_irq_ret = mtk_jpeg_dec_enum_result(dec_ret); ctx = v4l2_m2m_get_curr_priv(jpeg->m2m_dev); if (!ctx) { v4l2_err(&jpeg->v4l2_dev, "Context is NULL\n"); return IRQ_HANDLED; } src_buf = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); dst_buf = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(&src_buf->vb2_buf); if (dec_irq_ret >= MTK_JPEG_DEC_RESULT_UNDERFLOW) mtk_jpeg_dec_reset(jpeg->dec_reg_base); if (dec_irq_ret != MTK_JPEG_DEC_RESULT_EOF_DONE) { dev_err(jpeg->dev, "decode failed\n"); goto dec_end; } for (i = 0; i < dst_buf->vb2_buf.num_planes; i++) vb2_set_plane_payload(&dst_buf->vb2_buf, i, jpeg_src_buf->dec_param.comp_size[i]); buf_state = VB2_BUF_STATE_DONE; dec_end: v4l2_m2m_buf_done(src_buf, buf_state); v4l2_m2m_buf_done(dst_buf, buf_state); v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx); return IRQ_HANDLED; } static void mtk_jpeg_set_default_params(struct mtk_jpeg_ctx *ctx) { struct mtk_jpeg_q_data *q = &ctx->out_q; int i; ctx->colorspace = V4L2_COLORSPACE_JPEG, ctx->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; ctx->quantization = V4L2_QUANTIZATION_DEFAULT; ctx->xfer_func = V4L2_XFER_FUNC_DEFAULT; q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_JPEG, MTK_JPEG_FMT_TYPE_OUTPUT); q->w = MTK_JPEG_MIN_WIDTH; q->h = MTK_JPEG_MIN_HEIGHT; q->bytesperline[0] = 0; q->sizeimage[0] = MTK_JPEG_DEFAULT_SIZEIMAGE; q = &ctx->cap_q; q->fmt = mtk_jpeg_find_format(ctx, V4L2_PIX_FMT_YUV420M, MTK_JPEG_FMT_TYPE_CAPTURE); q->w = MTK_JPEG_MIN_WIDTH; q->h = MTK_JPEG_MIN_HEIGHT; for (i = 0; i < q->fmt->colplanes; i++) { u32 stride = q->w * q->fmt->h_sample[i] / 4; u32 h = q->h * q->fmt->v_sample[i] / 4; q->bytesperline[i] = stride; q->sizeimage[i] = stride * h; } } static int mtk_jpeg_open(struct file *file) { struct mtk_jpeg_dev *jpeg = video_drvdata(file); struct video_device *vfd = video_devdata(file); struct mtk_jpeg_ctx *ctx; int ret = 0; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; if (mutex_lock_interruptible(&jpeg->lock)) { ret = -ERESTARTSYS; goto free; } v4l2_fh_init(&ctx->fh, vfd); file->private_data = &ctx->fh; v4l2_fh_add(&ctx->fh); ctx->jpeg = jpeg; ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(jpeg->m2m_dev, ctx, mtk_jpeg_queue_init); if (IS_ERR(ctx->fh.m2m_ctx)) { ret = PTR_ERR(ctx->fh.m2m_ctx); goto error; } mtk_jpeg_set_default_params(ctx); mutex_unlock(&jpeg->lock); return 0; error: v4l2_fh_del(&ctx->fh); v4l2_fh_exit(&ctx->fh); mutex_unlock(&jpeg->lock); free: kfree(ctx); return ret; } static int mtk_jpeg_release(struct file *file) { struct mtk_jpeg_dev *jpeg = video_drvdata(file); struct mtk_jpeg_ctx *ctx = mtk_jpeg_fh_to_ctx(file->private_data); mutex_lock(&jpeg->lock); v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); v4l2_fh_del(&ctx->fh); v4l2_fh_exit(&ctx->fh); kfree(ctx); mutex_unlock(&jpeg->lock); return 0; } static const struct v4l2_file_operations mtk_jpeg_fops = { .owner = THIS_MODULE, .open = mtk_jpeg_open, .release = mtk_jpeg_release, .poll = v4l2_m2m_fop_poll, .unlocked_ioctl = video_ioctl2, .mmap = v4l2_m2m_fop_mmap, }; static int mtk_jpeg_clk_init(struct mtk_jpeg_dev *jpeg) { struct device_node *node; struct platform_device *pdev; node = of_parse_phandle(jpeg->dev->of_node, "mediatek,larb", 0); if (!node) return -EINVAL; pdev = of_find_device_by_node(node); if (WARN_ON(!pdev)) { of_node_put(node); return -EINVAL; } of_node_put(node); jpeg->larb = &pdev->dev; jpeg->clk_jdec = devm_clk_get(jpeg->dev, "jpgdec"); if (IS_ERR(jpeg->clk_jdec)) return PTR_ERR(jpeg->clk_jdec); jpeg->clk_jdec_smi = devm_clk_get(jpeg->dev, "jpgdec-smi"); return PTR_ERR_OR_ZERO(jpeg->clk_jdec_smi); } static int mtk_jpeg_probe(struct platform_device *pdev) { struct mtk_jpeg_dev *jpeg; struct resource *res; int dec_irq; int ret; jpeg = devm_kzalloc(&pdev->dev, sizeof(*jpeg), GFP_KERNEL); if (!jpeg) return -ENOMEM; mutex_init(&jpeg->lock); spin_lock_init(&jpeg->hw_lock); jpeg->dev = &pdev->dev; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); jpeg->dec_reg_base = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(jpeg->dec_reg_base)) { ret = PTR_ERR(jpeg->dec_reg_base); return ret; } res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); dec_irq = platform_get_irq(pdev, 0); if (!res || dec_irq < 0) { dev_err(&pdev->dev, "Failed to get dec_irq %d.\n", dec_irq); ret = -EINVAL; return ret; } ret = devm_request_irq(&pdev->dev, dec_irq, mtk_jpeg_dec_irq, 0, pdev->name, jpeg); if (ret) { dev_err(&pdev->dev, "Failed to request dec_irq %d (%d)\n", dec_irq, ret); ret = -EINVAL; goto err_req_irq; } ret = mtk_jpeg_clk_init(jpeg); if (ret) { dev_err(&pdev->dev, "Failed to init clk, err %d\n", ret); goto err_clk_init; } ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev); if (ret) { dev_err(&pdev->dev, "Failed to register v4l2 device\n"); ret = -EINVAL; goto err_dev_register; } jpeg->m2m_dev = v4l2_m2m_init(&mtk_jpeg_m2m_ops); if (IS_ERR(jpeg->m2m_dev)) { v4l2_err(&jpeg->v4l2_dev, "Failed to init mem2mem device\n"); ret = PTR_ERR(jpeg->m2m_dev); goto err_m2m_init; } jpeg->dec_vdev = video_device_alloc(); if (!jpeg->dec_vdev) { ret = -ENOMEM; goto err_dec_vdev_alloc; } snprintf(jpeg->dec_vdev->name, sizeof(jpeg->dec_vdev->name), "%s-dec", MTK_JPEG_NAME); jpeg->dec_vdev->fops = &mtk_jpeg_fops; jpeg->dec_vdev->ioctl_ops = &mtk_jpeg_ioctl_ops; jpeg->dec_vdev->minor = -1; jpeg->dec_vdev->release = video_device_release; jpeg->dec_vdev->lock = &jpeg->lock; jpeg->dec_vdev->v4l2_dev = &jpeg->v4l2_dev; jpeg->dec_vdev->vfl_dir = VFL_DIR_M2M; jpeg->dec_vdev->device_caps = V4L2_CAP_STREAMING | V4L2_CAP_VIDEO_M2M_MPLANE; ret = video_register_device(jpeg->dec_vdev, VFL_TYPE_GRABBER, 3); if (ret) { v4l2_err(&jpeg->v4l2_dev, "Failed to register video device\n"); goto err_dec_vdev_register; } video_set_drvdata(jpeg->dec_vdev, jpeg); v4l2_info(&jpeg->v4l2_dev, "decoder device registered as /dev/video%d (%d,%d)\n", jpeg->dec_vdev->num, VIDEO_MAJOR, jpeg->dec_vdev->minor); platform_set_drvdata(pdev, jpeg); pm_runtime_enable(&pdev->dev); return 0; err_dec_vdev_register: video_device_release(jpeg->dec_vdev); err_dec_vdev_alloc: v4l2_m2m_release(jpeg->m2m_dev); err_m2m_init: v4l2_device_unregister(&jpeg->v4l2_dev); err_dev_register: err_clk_init: err_req_irq: return ret; } static int mtk_jpeg_remove(struct platform_device *pdev) { struct mtk_jpeg_dev *jpeg = platform_get_drvdata(pdev); pm_runtime_disable(&pdev->dev); video_unregister_device(jpeg->dec_vdev); video_device_release(jpeg->dec_vdev); v4l2_m2m_release(jpeg->m2m_dev); v4l2_device_unregister(&jpeg->v4l2_dev); return 0; } static __maybe_unused int mtk_jpeg_pm_suspend(struct device *dev) { struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev); mtk_jpeg_dec_reset(jpeg->dec_reg_base); mtk_jpeg_clk_off(jpeg); return 0; } static __maybe_unused int mtk_jpeg_pm_resume(struct device *dev) { struct mtk_jpeg_dev *jpeg = dev_get_drvdata(dev); mtk_jpeg_clk_on(jpeg); mtk_jpeg_dec_reset(jpeg->dec_reg_base); return 0; } static __maybe_unused int mtk_jpeg_suspend(struct device *dev) { int ret; if (pm_runtime_suspended(dev)) return 0; ret = mtk_jpeg_pm_suspend(dev); return ret; } static __maybe_unused int mtk_jpeg_resume(struct device *dev) { int ret; if (pm_runtime_suspended(dev)) return 0; ret = mtk_jpeg_pm_resume(dev); return ret; } static const struct dev_pm_ops mtk_jpeg_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(mtk_jpeg_suspend, mtk_jpeg_resume) SET_RUNTIME_PM_OPS(mtk_jpeg_pm_suspend, mtk_jpeg_pm_resume, NULL) }; static const struct of_device_id mtk_jpeg_match[] = { { .compatible = "mediatek,mt8173-jpgdec", .data = NULL, }, { .compatible = "mediatek,mt2701-jpgdec", .data = NULL, }, {}, }; MODULE_DEVICE_TABLE(of, mtk_jpeg_match); static struct platform_driver mtk_jpeg_driver = { .probe = mtk_jpeg_probe, .remove = mtk_jpeg_remove, .driver = { .name = MTK_JPEG_NAME, .of_match_table = mtk_jpeg_match, .pm = &mtk_jpeg_pm_ops, }, }; module_platform_driver(mtk_jpeg_driver); MODULE_DESCRIPTION("MediaTek JPEG codec driver"); MODULE_LICENSE("GPL v2");
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