[v3] media: coda: Add driver for Coda video codec.

Message ID	1342077100-8629-1-git-send-email-javier.martin@vista-silicon.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-media-owner@vger.kernel.org> From: Javier Martin <javier.martin@vista-silicon.com> To: linux-media@vger.kernel.org Cc: sakari.ailus@maxwell.research.nokia.com, kyungmin.park@samsung.com, s.nawrocki@samsung.com, laurent.pinchart@ideasonboard.com, mchehab@infradead.org, p.zabel@pengutronix.de, s.hauer@pengutronix.de, Javier Martin <javier.martin@vista-silicon.com> Subject: [PATCH v3] media: coda: Add driver for Coda video codec. Date: Thu, 12 Jul 2012 09:11:40 +0200 Message-Id: <1342077100-8629-1-git-send-email-javier.martin@vista-silicon.com> Sender: linux-media-owner@vger.kernel.org Precedence: bulk

Hi Javier, I'm trying to use this driver (on i.MX53) with GStreamer, with two buffers on the encoded bitstream side. I'm getting negative bytesused values calculated in coda_isr(). The CODA_REG_BIT_WR_PTR address, which is initialized in coda_start_streaming() only moves around in the first buffer (so far attempts to set it from device_run() have failed). This causes negative bytesused values to be calculated in coda_isr() if the second buffer (which has a higher BB_START address than WR_PTR) is active. I'll repeat my observations inline below. Are you using just one buffer for encoded frames? Does your firmware behave differently? I see there is a comment about the expected register setting not working for CODA_REG_BIT_STREAM_CTRL in start_streaming(). Could this be related? Also, I've missed two problems with platform device removal and module autoloading before, see below. Am Donnerstag, den 12.07.2012, 09:11 +0200 schrieb Javier Martin: > Coda is a range of video codecs from Chips&Media that > support H.264, H.263, MPEG4 and other video standards. > > Currently only support for the codadx6 included in the > i.MX27 SoC is added. H.264 and MPEG4 video encoding > are the only supported capabilities by now. > > Signed-off-by: Javier Martin <javier.martin@vista-silicon.com> > --- > Changes since v2: > - Make hex constants lower case. > - Fix bytesperline. > - Make some functions and variables static. > - Fix logical && > - Remove get_qops() > --- [...] > +static int vidioc_g_fmt(struct coda_ctx *ctx, struct v4l2_format *f) > +{ > + struct vb2_queue *vq; > + struct coda_q_data *q_data; > + > + vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type); > + if (!vq) > + return -EINVAL; > + > + q_data = get_q_data(ctx, f->type); > + > + f->fmt.pix.field = V4L2_FIELD_NONE; > + f->fmt.pix.pixelformat = q_data->fmt->fourcc; > + if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUV420) { > + f->fmt.pix.width = q_data->width; > + f->fmt.pix.height = q_data->height; > + f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 2); > + } else { /* encoded formats h.264/mpeg4 */ > + f->fmt.pix.width = 0; > + f->fmt.pix.height = 0; > + f->fmt.pix.bytesperline = 0; > + } > + f->fmt.pix.sizeimage = q_data->sizeimage; > + > + return 0; > +} > + > +static int vidioc_g_fmt_vid_out(struct file *file, void *priv, > + struct v4l2_format *f) > +{ > + return vidioc_g_fmt(fh_to_ctx(priv), f); > +} > + > +static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, > + struct v4l2_format *f) > +{ > + return vidioc_g_fmt(fh_to_ctx(priv), f); > +} > + > +static int vidioc_try_fmt(struct coda_dev *dev, struct v4l2_format *f) > +{ > + enum v4l2_field field; > + > + if (!find_format(dev, f)) > + return -EINVAL; > + > + field = f->fmt.pix.field; > + if (field == V4L2_FIELD_ANY) > + field = V4L2_FIELD_NONE; > + else if (V4L2_FIELD_NONE != field) > + return -EINVAL; > + > + /* V4L2 specification suggests the driver corrects the format struct > + * if any of the dimensions is unsupported */ > + f->fmt.pix.field = field; > + > + if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUV420) { > + v4l_bound_align_image(&f->fmt.pix.width, MIN_W, MAX_W, > + W_ALIGN, &f->fmt.pix.height, > + MIN_H, MAX_H, H_ALIGN, S_ALIGN); > + f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 2); > + f->fmt.pix.sizeimage = f->fmt.pix.height * > + f->fmt.pix.bytesperline; > + } else { /*encoded formats h.264/mpeg4 */ > + f->fmt.pix.bytesperline = CODA_MAX_FRAME_SIZE; I failed to point this out specifically, but I think if G_FMT returns zero in bytesperline, so should TRY_FMT. > + f->fmt.pix.sizeimage = CODA_MAX_FRAME_SIZE; > + } > + > + return 0; > +} > + > +static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, > + struct v4l2_format *f) > +{ > + struct coda_fmt *fmt; > + struct coda_ctx *ctx = fh_to_ctx(priv); > + > + fmt = find_format(ctx->dev, f); > + /* > + * Since decoding support is not implemented yet do not allow > + * CODA_FMT_RAW formats in the capture interface. > + */ > + if (!fmt || !(fmt->type == CODA_FMT_ENC)) { > + v4l2_err(&ctx->dev->v4l2_dev, > + "Fourcc format (0x%08x) invalid.\n", > + f->fmt.pix.pixelformat); > + return -EINVAL; > + } > + > + return vidioc_try_fmt(ctx->dev, f); > +} [...] > +/* > + * Mem-to-mem operations. > + */ > + > +static int coda_isr(struct coda_dev *dev) > +{ > + struct coda_ctx *ctx; > + struct vb2_buffer *src_buf, *dst_buf, *tmp_buf; > + u32 wr_ptr, start_ptr; > + > + ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev); > + if (ctx == NULL) { > + v4l2_err(&dev->v4l2_dev, "Instance released before the end of transaction\n"); > + return IRQ_HANDLED; > + } > + > + if (ctx->aborting) { > + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, > + "task has been aborted\n"); > + return IRQ_HANDLED; > + } > + > + if (coda_isbusy(ctx->dev)) { > + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, > + "coda is still busy!!!!\n"); > + return IRQ_NONE; > + } > + > + src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx); > + dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); > + > + /* Get results from the coda */ > + coda_read(dev, CODA_RET_ENC_PIC_TYPE); > + start_ptr = coda_read(dev, CODA_CMD_ENC_PIC_BB_START); > + wr_ptr = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)); Here CODA_REG_BIT_WR_PTR is read, and it always contains a pointer into the first destination buffer that was set during start_streaming() below, even if I try to set it before starting the PIC_RUN command in device_run(). start_ptr contains the correct buffer address as set in device_run(). > + /* Calculate bytesused field */ > + if (dst_buf->v4l2_buf.sequence == 0) { > + dst_buf->v4l2_planes[0].bytesused = (wr_ptr - start_ptr) + > + ctx->vpu_header_size[0] + > + ctx->vpu_header_size[1] + > + ctx->vpu_header_size[2]; > + } else { > + dst_buf->v4l2_planes[0].bytesused = (wr_ptr - start_ptr); So it is possible to have wr_ptr < start_ptr here. > + } > + > + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, "frame size = %u\n", > + wr_ptr - start_ptr); > + > + coda_read(dev, CODA_RET_ENC_PIC_SLICE_NUM); > + coda_read(dev, CODA_RET_ENC_PIC_FLAG); > + > + if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) { > + dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME; > + dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME; > + } else { > + dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME; > + dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME; > + } > + > + /* Free previous reference picture if available */ > + if (ctx->reference) { > + v4l2_m2m_buf_done(ctx->reference, VB2_BUF_STATE_DONE); > + ctx->reference = NULL; > + } > + > + /* > + * For the last frame of the gop we don't need to save > + * a reference picture. > + */ > + v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); > + tmp_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx); > + if (ctx->gopcounter == 0) > + v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE); > + else > + ctx->reference = tmp_buf; > + > + v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE); > + > + ctx->gopcounter--; > + if (ctx->gopcounter < 0) > + ctx->gopcounter = ctx->params.gop_size - 1; > + > + v4l2_dbg(1, coda_debug, &dev->v4l2_dev, > + "job finished: encoding frame (%d) (%s)\n", > + dst_buf->v4l2_buf.sequence, > + (dst_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) ? > + "KEYFRAME" : "PFRAME"); > + > + v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->m2m_ctx); > + > + return IRQ_HANDLED; > +} > + > +static void coda_device_run(void *m2m_priv) > +{ > + struct coda_ctx *ctx = m2m_priv; > + struct coda_q_data *q_data_src, *q_data_dst; > + struct vb2_buffer *src_buf, *dst_buf; > + struct coda_dev *dev = ctx->dev; > + int force_ipicture; > + int quant_param = 0; > + u32 picture_y, picture_cb, picture_cr; > + u32 pic_stream_buffer_addr, pic_stream_buffer_size; > + u32 dst_fourcc; > + > + src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx); > + dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); > + q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); > + q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); > + dst_fourcc = q_data_dst->fmt->fourcc; > + > + src_buf->v4l2_buf.sequence = ctx->isequence; > + dst_buf->v4l2_buf.sequence = ctx->isequence; > + ctx->isequence++; > + > + /* > + * Workaround coda firmware BUG that only marks the first > + * frame as IDR. This is a problem for some decoders that can't > + * recover when a frame is lost. > + */ > + if (src_buf->v4l2_buf.sequence % ctx->params.gop_size) { > + src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME; > + src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME; > + } else { > + src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME; > + src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME; > + } > + > + /* > + * Copy headers at the beginning of the first frame for H.264 only. > + * In MPEG4 they are already copied by the coda. > + */ > + if (src_buf->v4l2_buf.sequence == 0) { > + pic_stream_buffer_addr = > + vb2_dma_contig_plane_dma_addr(dst_buf, 0) + > + ctx->vpu_header_size[0] + > + ctx->vpu_header_size[1] + > + ctx->vpu_header_size[2]; > + pic_stream_buffer_size = CODA_MAX_FRAME_SIZE - > + ctx->vpu_header_size[0] - > + ctx->vpu_header_size[1] - > + ctx->vpu_header_size[2]; > + memcpy(vb2_plane_vaddr(dst_buf, 0), > + &ctx->vpu_header[0][0], ctx->vpu_header_size[0]); > + memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->vpu_header_size[0], > + &ctx->vpu_header[1][0], ctx->vpu_header_size[1]); > + memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->vpu_header_size[0] + > + ctx->vpu_header_size[1], &ctx->vpu_header[2][0], > + ctx->vpu_header_size[2]); > + } else { > + pic_stream_buffer_addr = > + vb2_dma_contig_plane_dma_addr(dst_buf, 0); > + pic_stream_buffer_size = CODA_MAX_FRAME_SIZE; > + } > + > + if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) { > + force_ipicture = 1; > + switch (dst_fourcc) { > + case V4L2_PIX_FMT_H264: > + quant_param = ctx->params.h264_intra_qp; > + break; > + case V4L2_PIX_FMT_MPEG4: > + quant_param = ctx->params.mpeg4_intra_qp; > + break; > + default: > + v4l2_warn(&ctx->dev->v4l2_dev, > + "cannot set intra qp, fmt not supported\n"); > + break; > + } > + } else { > + force_ipicture = 0; > + switch (dst_fourcc) { > + case V4L2_PIX_FMT_H264: > + quant_param = ctx->params.h264_inter_qp; > + break; > + case V4L2_PIX_FMT_MPEG4: > + quant_param = ctx->params.mpeg4_inter_qp; > + break; > + default: > + v4l2_warn(&ctx->dev->v4l2_dev, > + "cannot set inter qp, fmt not supported\n"); > + break; > + } > + } > + > + /* submit */ > + coda_write(dev, 0, CODA_CMD_ENC_PIC_ROT_MODE); > + coda_write(dev, quant_param, CODA_CMD_ENC_PIC_QS); > + > + > + picture_y = vb2_dma_contig_plane_dma_addr(src_buf, 0); > + picture_cb = picture_y + q_data_src->width * q_data_src->height; > + picture_cr = picture_cb + q_data_src->width / 2 * > + q_data_src->height / 2; > + > + coda_write(dev, picture_y, CODA_CMD_ENC_PIC_SRC_ADDR_Y); > + coda_write(dev, picture_cb, CODA_CMD_ENC_PIC_SRC_ADDR_CB); > + coda_write(dev, picture_cr, CODA_CMD_ENC_PIC_SRC_ADDR_CR); > + coda_write(dev, force_ipicture << 1 & 0x2, > + CODA_CMD_ENC_PIC_OPTION); > + > + coda_write(dev, pic_stream_buffer_addr, CODA_CMD_ENC_PIC_BB_START); > + coda_write(dev, pic_stream_buffer_size / 1024, > + CODA_CMD_ENC_PIC_BB_SIZE); If I set CODA_REG_BIT_WR_PTR to pic_stream_buffer_addr here, and pic_stream_buffer_addr points to the second destination buffer, after the PIC_RUN command finishes, CODA_REG_BIT_WR_PTR again points into the first destination buffer, as set in start_streaming(). > + coda_command_async(ctx, CODA_COMMAND_PIC_RUN); > +} > + > +static int coda_job_ready(void *m2m_priv) > +{ > + struct coda_ctx *ctx = m2m_priv; > + > + /* > + * For both 'P' and 'key' frame cases 1 picture > + * and 1 frame are needed. > + */ > + if (!(v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) >= 1) || > + !(v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx) >= 1)) { > + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, > + "not ready: not enough video buffers.\n"); > + return 0; > + } > + > + /* For P frames a reference picture is needed too */ > + if ((ctx->gopcounter != (ctx->params.gop_size - 1)) && > + (!ctx->reference)) { > + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, > + "not ready: reference picture not available.\n"); > + return 0; > + } > + > + if (coda_isbusy(ctx->dev)) { > + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, > + "not ready: coda is still busy.\n"); > + return 0; > + } > + > + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, > + "job ready\n"); > + return 1; > +} [...] > +static int coda_start_streaming(struct vb2_queue *q, unsigned int count) > +{ > + struct coda_ctx *ctx = vb2_get_drv_priv(q); > + struct coda_dev *dev = ctx->dev; > + u32 bitstream_buf, bitstream_size; > + > + if (count < 1) > + return -EINVAL; > + > + if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) > + ctx->rawstreamon = 1; > + else > + ctx->compstreamon = 1; > + > + if (ctx->rawstreamon & ctx->compstreamon) { > + struct coda_q_data *q_data_src, *q_data_dst; > + u32 dst_fourcc; > + struct vb2_buffer *buf; > + struct vb2_queue *src_vq; > + u32 value; > + int i = 0; > + > + ctx->gopcounter = ctx->params.gop_size - 1; > + > + q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); > + buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); > + bitstream_buf = vb2_dma_contig_plane_dma_addr(buf, 0); > + q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); > + bitstream_size = q_data_dst->sizeimage; > + dst_fourcc = q_data_dst->fmt->fourcc; > + > + /* Find out whether coda must encode or decode */ > + if (q_data_src->fmt->type == CODA_FMT_RAW && > + q_data_dst->fmt->type == CODA_FMT_ENC) { > + ctx->inst_type = CODA_INST_ENCODER; > + } else if (q_data_src->fmt->type == CODA_FMT_ENC && > + q_data_dst->fmt->type == CODA_FMT_RAW) { > + ctx->inst_type = CODA_INST_DECODER; > + v4l2_err(&ctx->dev->v4l2_dev, "decoding not supported.\n"); > + return -EINVAL; > + } else { > + v4l2_err(&ctx->dev->v4l2_dev, "couldn't tell instance type.\n"); > + return -EINVAL; > + } > + > + if (!coda_is_initialized(dev)) { > + v4l2_err(&ctx->dev->v4l2_dev, "coda is not initialized.\n"); > + return -EFAULT; > + } > + coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR); > + coda_write(dev, bitstream_buf, CODA_REG_BIT_RD_PTR(ctx->idx)); > + coda_write(dev, bitstream_buf, CODA_REG_BIT_WR_PTR(ctx->idx)); Here CODA_REG_BIT_WR_PTR is set to the beginning of bitstream_buf, which is the first destination buffer. > + switch (dev->devtype->product) { > + case CODA_DX6: > + /* > + * We should use (CODADX6_STREAM_BUF_PIC_RESET | > + * CODADX6_STREAM_BUF_PIC_FLUSH) but it doesn't work > + * with firmware 2.2.5. > + */ > + coda_write(dev, (3 << 3), CODA_REG_BIT_STREAM_CTRL); > + break; > + default: > + coda_write(dev, CODA7_STREAM_BUF_PIC_RESET | > + CODA7_STREAM_BUF_PIC_FLUSH, CODA_REG_BIT_STREAM_CTRL); > + } > + > + /* Configure the coda */ > + coda_write(dev, 0xffff4c00, CODA_REG_BIT_SEARCH_RAM_BASE_ADDR); > + > + /* Could set rotation here if needed */ > + switch (dev->devtype->product) { > + case CODA_DX6: > + value = (q_data_src->width & CODADX6_PICWIDTH_MASK) << CODADX6_PICWIDTH_OFFSET; > + break; > + default: > + value = (q_data_src->width & CODA7_PICWIDTH_MASK) << CODA7_PICWIDTH_OFFSET; > + } > + value |= (q_data_src->height & CODA_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET; > + coda_write(dev, value, CODA_CMD_ENC_SEQ_SRC_SIZE); > + coda_write(dev, ctx->params.framerate, > + CODA_CMD_ENC_SEQ_SRC_F_RATE); > + > + switch (dst_fourcc) { > + case V4L2_PIX_FMT_MPEG4: > + ctx->params.codec_mode = (dev->devtype->product == CODA_DX6) ? CODADX6_MODE_ENCODE_MP4 : CODA7_MODE_ENCODE_MP4; > + coda_write(dev, CODA_STD_MPEG4, CODA_CMD_ENC_SEQ_COD_STD); > + value = (0 & CODA_MP4PARAM_VERID_MASK) << CODA_MP4PARAM_VERID_OFFSET; > + value |= (0 & CODA_MP4PARAM_INTRADCVLCTHR_MASK) << CODA_MP4PARAM_INTRADCVLCTHR_OFFSET; > + value |= (0 & CODA_MP4PARAM_REVERSIBLEVLCENABLE_MASK) << CODA_MP4PARAM_REVERSIBLEVLCENABLE_OFFSET; > + value |= 0 & CODA_MP4PARAM_DATAPARTITIONENABLE_MASK; > + coda_write(dev, value, CODA_CMD_ENC_SEQ_MP4_PARA); > + break; > + case V4L2_PIX_FMT_H264: > + ctx->params.codec_mode = (dev->devtype->product == CODA_DX6) ? CODADX6_MODE_ENCODE_H264 : CODA7_MODE_ENCODE_H264; > + coda_write(dev, CODA_STD_H264, CODA_CMD_ENC_SEQ_COD_STD); > + value = (0 & CODA_264PARAM_DEBLKFILTEROFFSETBETA_MASK) << CODA_264PARAM_DEBLKFILTEROFFSETBETA_OFFSET; > + value |= (0 & CODA_264PARAM_DEBLKFILTEROFFSETALPHA_MASK) << CODA_264PARAM_DEBLKFILTEROFFSETALPHA_OFFSET; > + value |= (0 & CODA_264PARAM_DISABLEDEBLK_MASK) << CODA_264PARAM_DISABLEDEBLK_OFFSET; > + value |= (0 & CODA_264PARAM_CONSTRAINEDINTRAPREDFLAG_MASK) << CODA_264PARAM_CONSTRAINEDINTRAPREDFLAG_OFFSET; > + value |= 0 & CODA_264PARAM_CHROMAQPOFFSET_MASK; > + coda_write(dev, value, CODA_CMD_ENC_SEQ_264_PARA); > + break; > + default: > + v4l2_err(&ctx->dev->v4l2_dev, > + "dst format (0x%08x) invalid.\n", dst_fourcc); > + return -EINVAL; > + } > + > + value = (ctx->params.slice_max_mb & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET; > + value |= (1 & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET; > + if (ctx->params.slice_mode == V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB) > + value |= 1 & CODA_SLICING_MODE_MASK; > + coda_write(dev, value, CODA_CMD_ENC_SEQ_SLICE_MODE); > + value = ctx->params.gop_size & CODA_GOP_SIZE_MASK; > + coda_write(dev, value, CODA_CMD_ENC_SEQ_GOP_SIZE); > + > + if (ctx->params.bitrate) { > + /* Rate control enabled */ > + value = (0 & CODA_RATECONTROL_AUTOSKIP_MASK) << CODA_RATECONTROL_AUTOSKIP_OFFSET; > + value |= (0 & CODA_RATECONTROL_INITIALDELAY_MASK) << CODA_RATECONTROL_INITIALDELAY_OFFSET; > + value |= (ctx->params.bitrate & CODA_RATECONTROL_BITRATE_MASK) << CODA_RATECONTROL_BITRATE_OFFSET; > + value |= 1 & CODA_RATECONTROL_ENABLE_MASK; > + } else { > + value = 0; > + } > + coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_PARA); > + > + coda_write(dev, 0, CODA_CMD_ENC_SEQ_RC_BUF_SIZE); > + coda_write(dev, 0, CODA_CMD_ENC_SEQ_INTRA_REFRESH); > + > + coda_write(dev, bitstream_buf, CODA_CMD_ENC_SEQ_BB_START); > + coda_write(dev, bitstream_size / 1024, CODA_CMD_ENC_SEQ_BB_SIZE); > + > + /* set default gamma */ > + value = (CODA_DEFAULT_GAMMA & CODA_GAMMA_MASK) << CODA_GAMMA_OFFSET; > + coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_GAMMA); > + > + value = (CODA_DEFAULT_GAMMA > 0) << CODA_OPTION_GAMMA_OFFSET; > + value |= (0 & CODA_OPTION_SLICEREPORT_MASK) << CODA_OPTION_SLICEREPORT_OFFSET; > + coda_write(dev, value, CODA_CMD_ENC_SEQ_OPTION); > + > + if (dst_fourcc == V4L2_PIX_FMT_H264) { > + value = (FMO_SLICE_SAVE_BUF_SIZE << 7); > + value |= (0 & CODA_FMOPARAM_TYPE_MASK) << CODA_FMOPARAM_TYPE_OFFSET; > + value |= 0 & CODA_FMOPARAM_SLICENUM_MASK; > + coda_write(dev, value, CODA_CMD_ENC_SEQ_FMO); > + } > + > + if (coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT)) { > + v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n"); > + return -ETIMEDOUT; > + } > + > + if (coda_read(dev, CODA_RET_ENC_SEQ_SUCCESS) == 0) > + return -EFAULT; > + > + /* > + * Walk the src buffer list and let the codec know the > + * addresses of the pictures. > + */ > + src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); > + for (i = 0; i < src_vq->num_buffers; i++) { > + u32 *p; > + > + buf = src_vq->bufs[i]; > + p = ctx->parabuf.vaddr; > + > + p[i * 3] = vb2_dma_contig_plane_dma_addr(buf, 0); > + p[i * 3 + 1] = p[i * 3] + q_data_src->width * > + q_data_src->height; > + p[i * 3 + 2] = p[i * 3 + 1] + q_data_src->width / 2 * > + q_data_src->height / 2; > + } > + > + coda_write(dev, src_vq->num_buffers, CODA_CMD_SET_FRAME_BUF_NUM); > + coda_write(dev, q_data_src->width, CODA_CMD_SET_FRAME_BUF_STRIDE); > + if (coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF)) { > + v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_SET_FRAME_BUF timeout\n"); > + return -ETIMEDOUT; > + } > + > + /* Save stream headers */ > + buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); > + switch (dst_fourcc) { > + case V4L2_PIX_FMT_H264: > + /* > + * Get SPS in the first frame and copy it to an > + * intermediate buffer. > + */ > + coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START); > + coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE); > + coda_write(dev, CODA_HEADER_H264_SPS, CODA_CMD_ENC_HEADER_CODE); > + if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) { > + v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n"); > + return -ETIMEDOUT; > + } > + ctx->vpu_header_size[0] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) - > + coda_read(dev, CODA_CMD_ENC_HEADER_BB_START); > + memcpy(&ctx->vpu_header[0][0], vb2_plane_vaddr(buf, 0), > + ctx->vpu_header_size[0]); > + > + /* > + * Get PPS in the first frame and copy it to an > + * intermediate buffer. > + */ > + coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START); > + coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE); > + coda_write(dev, CODA_HEADER_H264_PPS, CODA_CMD_ENC_HEADER_CODE); > + if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) { > + v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n"); > + return -ETIMEDOUT; > + } > + ctx->vpu_header_size[1] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) - > + coda_read(dev, CODA_CMD_ENC_HEADER_BB_START); > + memcpy(&ctx->vpu_header[1][0], vb2_plane_vaddr(buf, 0), > + ctx->vpu_header_size[1]); > + ctx->vpu_header_size[2] = 0; > + break; > + case V4L2_PIX_FMT_MPEG4: > + /* > + * Get VOS in the first frame and copy it to an > + * intermediate buffer > + */ > + coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START); > + coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE); > + coda_write(dev, CODA_HEADER_MP4V_VOS, CODA_CMD_ENC_HEADER_CODE); > + if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) { > + v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n"); > + return -ETIMEDOUT; > + } > + ctx->vpu_header_size[0] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) - > + coda_read(dev, CODA_CMD_ENC_HEADER_BB_START); > + memcpy(&ctx->vpu_header[0][0], vb2_plane_vaddr(buf, 0), > + ctx->vpu_header_size[0]); > + > + coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START); > + coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE); > + coda_write(dev, CODA_HEADER_MP4V_VIS, CODA_CMD_ENC_HEADER_CODE); > + if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) { > + v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER failed\n"); > + return -ETIMEDOUT; > + } > + ctx->vpu_header_size[1] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) - > + coda_read(dev, CODA_CMD_ENC_HEADER_BB_START); > + memcpy(&ctx->vpu_header[1][0], vb2_plane_vaddr(buf, 0), > + ctx->vpu_header_size[1]); > + > + coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START); > + coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE); > + coda_write(dev, CODA_HEADER_MP4V_VOL, CODA_CMD_ENC_HEADER_CODE); > + if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) { > + v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER failed\n"); > + return -ETIMEDOUT; > + } > + ctx->vpu_header_size[2] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) - > + coda_read(dev, CODA_CMD_ENC_HEADER_BB_START); > + memcpy(&ctx->vpu_header[2][0], vb2_plane_vaddr(buf, 0), > + ctx->vpu_header_size[2]); > + break; > + default: > + /* No more formats need to save headers at the moment */ > + break; > + } > + } > + return 0; > +} > + > +static int coda_stop_streaming(struct vb2_queue *q) > +{ > + struct coda_ctx *ctx = vb2_get_drv_priv(q); > + > + if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { > + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, > + "%s: output\n", __func__); > + ctx->rawstreamon = 0; > + } else { > + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, > + "%s: capture\n", __func__); > + ctx->compstreamon = 0; > + } > + > + if (!ctx->rawstreamon && !ctx->compstreamon) { > + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, > + "%s: sent command 'SEQ_END' to coda\n", __func__); > + if (coda_command_sync(ctx, CODA_COMMAND_SEQ_END)) { > + v4l2_err(&ctx->dev->v4l2_dev, > + "CODA_COMMAND_SEQ_END failed\n"); > + return -ETIMEDOUT; > + } > + } > + > + return 0; > +} > + > +static struct vb2_ops coda_qops = { > + .queue_setup = coda_queue_setup, > + .buf_prepare = coda_buf_prepare, > + .buf_queue = coda_buf_queue, > + .wait_prepare = coda_wait_prepare, > + .wait_finish = coda_wait_finish, > + .start_streaming = coda_start_streaming, > + .stop_streaming = coda_stop_streaming, > +}; > + > +static int coda_s_ctrl(struct v4l2_ctrl *ctrl) > +{ > + struct coda_ctx *ctx = > + container_of(ctrl->handler, struct coda_ctx, ctrls); > + > + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, > + "s_ctrl: id = %d, val = %d\n", ctrl->id, ctrl->val); > + > + switch (ctrl->id) { > + case V4L2_CID_MPEG_VIDEO_BITRATE: > + ctx->params.bitrate = ctrl->val / 1000; > + break; > + case V4L2_CID_MPEG_VIDEO_GOP_SIZE: > + ctx->params.gop_size = ctrl->val; > + break; > + case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP: > + ctx->params.h264_intra_qp = ctrl->val; > + break; > + case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP: > + ctx->params.h264_inter_qp = ctrl->val; > + break; > + case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP: > + ctx->params.mpeg4_intra_qp = ctrl->val; > + break; > + case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP: > + ctx->params.mpeg4_inter_qp = ctrl->val; > + break; > + case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE: > + ctx->params.slice_mode = ctrl->val; > + break; > + case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB: > + ctx->params.slice_max_mb = ctrl->val; > + break; > + case V4L2_CID_MPEG_VIDEO_HEADER_MODE: > + break; > + default: > + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, > + "Invalid control, id=%d, val=%d\n", > + ctrl->id, ctrl->val); > + return -EINVAL; > + } > + > + return 0; > +} > + > +static struct v4l2_ctrl_ops coda_ctrl_ops = { > + .s_ctrl = coda_s_ctrl, > +}; > + > +static int coda_ctrls_setup(struct coda_ctx *ctx) > +{ > + v4l2_ctrl_handler_init(&ctx->ctrls, 9); > + > + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, > + V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1, 0); > + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, > + V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 60, 1, 16); > + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, > + V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 1, 51, 1, 25); > + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, > + V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 1, 51, 1, 25); > + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, > + V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2); > + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, > + V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2); > + v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops, > + V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE, > + V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB, 0, > + V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB); > + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, > + V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1); > + v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops, > + V4L2_CID_MPEG_VIDEO_HEADER_MODE, > + V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME, > + (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE), > + V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME); > + > + return v4l2_ctrl_handler_setup(&ctx->ctrls); > +} > + > +static int coda_queue_init(void *priv, struct vb2_queue *src_vq, > + struct vb2_queue *dst_vq) > +{ > + struct coda_ctx *ctx = priv; > + int ret; > + > + memset(src_vq, 0, sizeof(*src_vq)); > + src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; > + src_vq->io_modes = VB2_MMAP; > + src_vq->drv_priv = ctx; > + src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); > + src_vq->ops = &coda_qops; > + src_vq->mem_ops = &vb2_dma_contig_memops; > + > + ret = vb2_queue_init(src_vq); > + if (ret) > + return ret; > + > + memset(dst_vq, 0, sizeof(*dst_vq)); > + dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; > + dst_vq->io_modes = VB2_MMAP; > + dst_vq->drv_priv = ctx; > + dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); > + dst_vq->ops = &coda_qops; > + dst_vq->mem_ops = &vb2_dma_contig_memops; > + > + return vb2_queue_init(dst_vq); > +} > + > +static int coda_open(struct file *file) > +{ > + struct coda_dev *dev = video_drvdata(file); > + struct coda_ctx *ctx = NULL; > + int ret = 0; > + > + if (dev->instances >= CODA_MAX_INSTANCES) > + return -EBUSY; > + > + ctx = kzalloc(sizeof *ctx, GFP_KERNEL); > + if (!ctx) > + return -ENOMEM; > + > + v4l2_fh_init(&ctx->fh, video_devdata(file)); > + file->private_data = &ctx->fh; > + v4l2_fh_add(&ctx->fh); > + ctx->dev = dev; > + > + set_default_params(ctx); > + ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, > + &coda_queue_init); > + if (IS_ERR(ctx->m2m_ctx)) { > + int ret = PTR_ERR(ctx->m2m_ctx); > + > + v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n", > + __func__, ret); > + goto err; > + } > + ret = coda_ctrls_setup(ctx); > + if (ret) { > + v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n"); > + > + goto err; > + } > + > + ctx->fh.ctrl_handler = &ctx->ctrls; > + > + ctx->parabuf.vaddr = dma_alloc_coherent(&dev->plat_dev->dev, > + CODA_PARA_BUF_SIZE, &ctx->parabuf.paddr, GFP_KERNEL); > + if (!ctx->parabuf.vaddr) { > + v4l2_err(&dev->v4l2_dev, "failed to allocate parabuf"); > + ret = -ENOMEM; > + goto err; > + } > + > + coda_lock(ctx); > + ctx->idx = dev->instances++; > + coda_unlock(ctx); > + > + clk_prepare_enable(dev->clk_per); > + clk_prepare_enable(dev->clk_ahb); > + > + v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n", > + ctx->idx, ctx); > + > + return 0; > + > +err: > + v4l2_fh_del(&ctx->fh); > + v4l2_fh_exit(&ctx->fh); > + kfree(ctx); > + return ret; > +} > + > +static int coda_release(struct file *file) > +{ > + struct coda_dev *dev = video_drvdata(file); > + struct coda_ctx *ctx = fh_to_ctx(file->private_data); > + > + v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n", > + ctx); > + > + coda_lock(ctx); > + dev->instances--; > + coda_unlock(ctx); > + > + dma_free_coherent(&dev->plat_dev->dev, CODA_PARA_BUF_SIZE, > + ctx->parabuf.vaddr, ctx->parabuf.paddr); > + v4l2_m2m_ctx_release(ctx->m2m_ctx); > + v4l2_ctrl_handler_free(&ctx->ctrls); > + clk_disable_unprepare(dev->clk_per); > + clk_disable_unprepare(dev->clk_ahb); > + v4l2_fh_del(&ctx->fh); > + v4l2_fh_exit(&ctx->fh); > + kfree(ctx); > + > + return 0; > +} > + > +static unsigned int coda_poll(struct file *file, > + struct poll_table_struct *wait) > +{ > + struct coda_ctx *ctx = fh_to_ctx(file->private_data); > + int ret; > + > + coda_lock(ctx); > + ret = v4l2_m2m_poll(file, ctx->m2m_ctx, wait); > + coda_unlock(ctx); > + return ret; > +} > + > +static int coda_mmap(struct file *file, struct vm_area_struct *vma) > +{ > + struct coda_ctx *ctx = fh_to_ctx(file->private_data); > + > + return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma); > +} > + > +static const struct v4l2_file_operations coda_fops = { > + .owner = THIS_MODULE, > + .open = coda_open, > + .release = coda_release, > + .poll = coda_poll, > + .unlocked_ioctl = video_ioctl2, > + .mmap = coda_mmap, > +}; > + > +static irqreturn_t coda_irq_handler(int irq, void *data) > +{ > + struct coda_dev *dev = data; > + > + /* read status register to attend the IRQ */ > + coda_read(dev, CODA_REG_BIT_INT_STATUS); > + coda_write(dev, CODA_REG_BIT_INT_CLEAR_SET, > + CODA_REG_BIT_INT_CLEAR); > + > + return coda_isr(dev); > +} > + > +static u32 coda_supported_firmwares[] = { > + CODA_FIRMWARE_VERNUM(CODA_DX6, 2, 2, 5), > +}; > + > +static bool coda_firmware_supported(u32 vernum) > +{ > + int i; > + > + for (i = 0; i < ARRAY_SIZE(coda_supported_firmwares); i++) > + if (vernum == coda_supported_firmwares[i]) > + return true; > + return false; > +} > + > +static char *coda_product_name(int product) > +{ > + static char buf[9]; > + > + switch (product) { > + case CODA_DX6: > + return "CodaDx6"; > + default: > + snprintf(buf, sizeof(buf), "(0x%04x)", product); > + return buf; > + } > +} > + > +static int coda_hw_init(struct coda_dev *dev, const struct firmware *fw) > +{ > + u16 product, major, minor, release; > + u32 data; > + u16 *p; > + int i; > + > + clk_prepare_enable(dev->clk_per); > + clk_prepare_enable(dev->clk_ahb); > + > + /* Copy the whole firmware image to the code buffer */ > + memcpy(dev->codebuf.vaddr, fw->data, fw->size); > + /* > + * Copy the first CODA_ISRAM_SIZE in the internal SRAM. > + * This memory seems to be big-endian here, which is weird, since > + * the internal ARM processor of the coda is little endian. > + * Data in this SRAM survives a reboot. > + */ > + p = (u16 *)fw->data; > + for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) { > + data = CODA_DOWN_ADDRESS_SET(i) | > + CODA_DOWN_DATA_SET(p[i ^ 1]); > + coda_write(dev, data, CODA_REG_BIT_CODE_DOWN); > + } > + release_firmware(fw); > + > + /* Tell the BIT where to find everything it needs */ > + coda_write(dev, dev->workbuf.paddr, > + CODA_REG_BIT_WORK_BUF_ADDR); > + coda_write(dev, dev->codebuf.paddr, > + CODA_REG_BIT_CODE_BUF_ADDR); > + coda_write(dev, 0, CODA_REG_BIT_CODE_RUN); > + > + /* Set default values */ > + switch (dev->devtype->product) { > + case CODA_DX6: > + coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH, CODA_REG_BIT_STREAM_CTRL); > + break; > + default: > + coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH, CODA_REG_BIT_STREAM_CTRL); > + } > + coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL); > + coda_write(dev, CODA_INT_INTERRUPT_ENABLE, > + CODA_REG_BIT_INT_ENABLE); > + > + /* Reset VPU and start processor */ > + data = coda_read(dev, CODA_REG_BIT_CODE_RESET); > + data |= CODA_REG_RESET_ENABLE; > + coda_write(dev, data, CODA_REG_BIT_CODE_RESET); > + udelay(10); > + data &= ~CODA_REG_RESET_ENABLE; > + coda_write(dev, data, CODA_REG_BIT_CODE_RESET); > + coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN); > + > + /* Load firmware */ > + coda_write(dev, 0, CODA_CMD_FIRMWARE_VERNUM); > + coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY); > + coda_write(dev, 0, CODA_REG_BIT_RUN_INDEX); > + coda_write(dev, 0, CODA_REG_BIT_RUN_COD_STD); > + coda_write(dev, CODA_COMMAND_FIRMWARE_GET, CODA_REG_BIT_RUN_COMMAND); > + if (coda_wait_timeout(dev)) { > + clk_disable_unprepare(dev->clk_per); > + clk_disable_unprepare(dev->clk_ahb); > + v4l2_err(&dev->v4l2_dev, "firmware get command error\n"); > + return -EIO; > + } > + > + /* Check we are compatible with the loaded firmware */ > + data = coda_read(dev, CODA_CMD_FIRMWARE_VERNUM); > + product = CODA_FIRMWARE_PRODUCT(data); > + major = CODA_FIRMWARE_MAJOR(data); > + minor = CODA_FIRMWARE_MINOR(data); > + release = CODA_FIRMWARE_RELEASE(data); > + > + clk_disable_unprepare(dev->clk_per); > + clk_disable_unprepare(dev->clk_ahb); > + > + if (product != dev->devtype->product) { > + v4l2_err(&dev->v4l2_dev, "Wrong firmware. Hw: %s, Fw: %s," > + " Version: %u.%u.%u\n", > + coda_product_name(dev->devtype->product), > + coda_product_name(product), major, minor, release); > + return -EINVAL; > + } > + > + v4l2_info(&dev->v4l2_dev, "Initialized %s.\n", > + coda_product_name(product)); > + > + if (coda_firmware_supported(data)) { > + v4l2_info(&dev->v4l2_dev, "Firmware version: %u.%u.%u\n", > + major, minor, release); > + } else { > + v4l2_warn(&dev->v4l2_dev, "Unsupported firmware version: " > + "%u.%u.%u\n", major, minor, release); > + } > + > + return 0; > +} > + > +static void coda_fw_callback(const struct firmware *fw, void *context) > +{ > + struct coda_dev *dev = context; > + struct platform_device *pdev = dev->plat_dev; > + struct video_device *vfd; > + int ret; > + > + if (!fw) { > + v4l2_err(&dev->v4l2_dev, "firmware request failed\n"); > + return; > + } > + > + /* allocate auxiliary per-device code buffer for the BIT processor */ > + dev->codebuf_size = fw->size; > + dev->codebuf.vaddr = dma_alloc_coherent(&pdev->dev, fw->size, > + &dev->codebuf.paddr, > + GFP_KERNEL); > + if (!dev->codebuf.vaddr) { > + dev_err(&pdev->dev, "failed to allocate code buffer\n"); > + return; > + } > + > + ret = coda_hw_init(dev, fw); > + if (ret) { > + v4l2_err(&dev->v4l2_dev, "HW initialization failed\n"); > + return; > + } > + > + vfd = video_device_alloc(); > + if (!vfd) { > + v4l2_err(&dev->v4l2_dev, "Failed to allocate video device\n"); > + return; > + } > + > + vfd->fops = &coda_fops, > + vfd->ioctl_ops = &coda_ioctl_ops; > + vfd->release = video_device_release, > + vfd->lock = &dev->dev_mutex; > + vfd->v4l2_dev = &dev->v4l2_dev; > + snprintf(vfd->name, sizeof(vfd->name), "%s", CODA_NAME); > + dev->vfd = vfd; > + video_set_drvdata(vfd, dev); > + > + dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); > + if (IS_ERR(dev->alloc_ctx)) { > + v4l2_err(&dev->v4l2_dev, "Failed to alloc vb2 context\n"); > + goto rel_vdev; > + } > + > + dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops); > + if (IS_ERR(dev->m2m_dev)) { > + v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n"); > + goto rel_ctx; > + } > + > + ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0); > + if (ret) { > + v4l2_err(&dev->v4l2_dev, "Failed to register video device\n"); > + goto rel_m2m; > + } > + v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video%d\n", > + vfd->num); > + > + return; > + > +rel_m2m: > + v4l2_m2m_release(dev->m2m_dev); > +rel_ctx: > + vb2_dma_contig_cleanup_ctx(dev->alloc_ctx); > +rel_vdev: > + video_device_release(vfd); > + > + return; > +} > + > +static int coda_firmware_request(struct coda_dev *dev) > +{ > + char *fw = dev->devtype->firmware; > + > + dev_dbg(&dev->plat_dev->dev, "requesting firmware '%s' for %s\n", fw, > + coda_product_name(dev->devtype->product)); > + > + return request_firmware_nowait(THIS_MODULE, true, > + fw, &dev->plat_dev->dev, GFP_KERNEL, dev, coda_fw_callback); > +} > + > +enum coda_platform { > + CODA_IMX27, > +}; > + > +static struct coda_devtype coda_devdata[] = { > + [CODA_IMX27] = { > + .firmware = "v4l-codadx6-imx27.bin", > + .product = CODA_DX6, > + .formats = codadx6_formats, > + .num_formats = ARRAY_SIZE(codadx6_formats), > + }, > +}; > + > +static struct platform_device_id coda_platform_ids[] = { > + { .name = "coda-imx27", .driver_data = CODA_IMX27 }, > + { /* sentinel */ } > +}; > +MODULE_DEVICE_TABLE(platform, coda_platform_ids); > + > +#ifdef CONFIG_OF > +static const struct of_device_id coda_dt_ids[] = { > + { .compatible = "fsl,imx27-vpu", .data = &coda_platform_ids[CODA_IMX27] }, > + { /* sentinel */ } > +}; > +MODULE_DEVICE_TABLE(platform, coda_dt_ids); Should be MODULE_DEVICE_TABLE(of, coda_dt_ids); I completely missed this before, but today it was pointed out to me that module autoloading doesn't work. [...] > +static int coda_remove(struct platform_device *pdev) > +{ > + struct coda_dev *dev = platform_get_drvdata(pdev); > + unsigned int bufsize; > + > + switch (dev->devtype->product) { > + case CODA_DX6: > + bufsize = CODADX6_WORK_BUF_SIZE; > + break; > + default: > + bufsize = CODA7_WORK_BUF_SIZE; > + } > + > + video_unregister_device(dev->vfd); > + v4l2_m2m_release(dev->m2m_dev); > + vb2_dma_contig_cleanup_ctx(dev->alloc_ctx); > + video_device_release(dev->vfd); -+ video_device_release(dev->vfd); ++ v4l2_device_unregister(&dev->v4l2_dev); video_device_release is already called by kobj refcounting. With this change I can cleanly rmmod/insmod the coda.ko module. > + if (dev->codebuf.vaddr) > + dma_free_coherent(&pdev->dev, dev->codebuf_size, > + &dev->codebuf.vaddr, dev->codebuf.paddr); > + dma_free_coherent(&pdev->dev, bufsize, &dev->workbuf.vaddr, > + dev->workbuf.paddr); > + return 0; > +} > + > +static struct platform_driver coda_driver = { > + .probe = coda_probe, > + .remove = __devexit_p(coda_remove), > + .driver = { > + .name = CODA_NAME, > + .owner = THIS_MODULE, > + .of_match_table = of_match_ptr(coda_dt_ids), > + }, > + .id_table = coda_platform_ids, > +}; > + > +module_platform_driver(coda_driver); > + > +MODULE_LICENSE("GPL"); > +MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>"); > +MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver"); [...] regards Philipp -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html

diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index 99937c9..9cebf7b 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -1179,6 +1179,15 @@ config VIDEO_MEM2MEM_TESTDEV This is a virtual test device for the memory-to-memory driver framework. +config VIDEO_CODA + tristate "Chips&Media Coda multi-standard codec IP" + depends on VIDEO_DEV && VIDEO_V4L2 + select VIDEOBUF2_DMA_CONTIG + select V4L2_MEM2MEM_DEV + ---help--- + Coda is a range of video codec IPs that supports + H.264, MPEG-4, and other video formats. + config VIDEO_SAMSUNG_S5P_G2D tristate "Samsung S5P and EXYNOS4 G2D 2d graphics accelerator driver" depends on VIDEO_DEV && VIDEO_V4L2 && PLAT_S5P diff --git a/drivers/media/video/Makefile b/drivers/media/video/Makefile index d209de0..a04c307 100644 --- a/drivers/media/video/Makefile +++ b/drivers/media/video/Makefile @@ -187,6 +187,7 @@ obj-$(CONFIG_VIDEO_OMAP1) += omap1_camera.o obj-$(CONFIG_VIDEO_ATMEL_ISI) += atmel-isi.o obj-$(CONFIG_VIDEO_MX2_EMMAPRP) += mx2_emmaprp.o +obj-$(CONFIG_VIDEO_CODA) += coda.o obj-$(CONFIG_VIDEO_SAMSUNG_S5P_FIMC) += s5p-fimc/ obj-$(CONFIG_VIDEO_SAMSUNG_S5P_JPEG) += s5p-jpeg/ diff --git a/drivers/media/video/coda.c b/drivers/media/video/coda.c new file mode 100644 index 0000000..bfbbeb5 --- /dev/null +++ b/drivers/media/video/coda.c @@ -0,0 +1,1869 @@ +/* + * Coda multi-standard codec IP + * + * Copyright (C) 2012 Vista Silicon S.L. + * Javier Martin, <javier.martin@vista-silicon.com> + * Xavier Duret + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/firmware.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/videodev2.h> + +#include <media/v4l2-ctrls.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-mem2mem.h> +#include <media/videobuf2-core.h> +#include <media/videobuf2-dma-contig.h> + +#include "coda.h" + +#define CODA_NAME "coda" + +#define CODA_MAX_INSTANCES 4 + +#define CODA_FMO_BUF_SIZE 32 +#define CODADX6_WORK_BUF_SIZE (288 * 1024 + CODA_FMO_BUF_SIZE * 8 * 1024) +#define CODA7_WORK_BUF_SIZE (512 * 1024 + CODA_FMO_BUF_SIZE * 8 * 1024) +#define CODA_PARA_BUF_SIZE (10 * 1024) +#define CODA_ISRAM_SIZE (2048 * 2) + +#define CODA_OUTPUT_BUFS 4 +#define CODA_CAPTURE_BUFS 2 + +#define CODA_MAX_WIDTH 720 +#define CODA_MAX_HEIGHT 576 +#define CODA_MAX_FRAME_SIZE 0x90000 +#define FMO_SLICE_SAVE_BUF_SIZE (32) +#define CODA_DEFAULT_GAMMA 4096 + +#define MIN_W 176 +#define MIN_H 144 +#define MAX_W 720 +#define MAX_H 576 + +#define S_ALIGN 1 /* multiple of 2 */ +#define W_ALIGN 1 /* multiple of 2 */ +#define H_ALIGN 1 /* multiple of 2 */ + +#define fh_to_ctx(__fh) container_of(__fh, struct coda_ctx, fh) + +static int coda_debug; +module_param(coda_debug, int, 0); +MODULE_PARM_DESC(coda_debug, "Debug level (0-1)"); + +enum { + V4L2_M2M_SRC = 0, + V4L2_M2M_DST = 1, +}; + +enum coda_fmt_type { + CODA_FMT_ENC, + CODA_FMT_RAW, +}; + +enum coda_inst_type { + CODA_INST_INVALID, + CODA_INST_ENCODER, + CODA_INST_DECODER, +}; + +enum coda_product { + CODA_DX6 = 0xf001, +}; + +struct coda_fmt { + char *name; + u32 fourcc; + enum coda_fmt_type type; +}; + +struct coda_devtype { + char *firmware; + enum coda_product product; + struct coda_fmt *formats; + unsigned int num_formats; + size_t workbuf_size; +}; + +/* Per-queue, driver-specific private data */ +struct coda_q_data { + unsigned int width; + unsigned int height; + unsigned int sizeimage; + struct coda_fmt *fmt; +}; + +struct coda_aux_buf { + void *vaddr; + dma_addr_t paddr; +}; + +struct coda_dev { + struct v4l2_device v4l2_dev; + struct video_device *vfd; + struct platform_device *plat_dev; + struct coda_devtype *devtype; + + void __iomem *regs_base; + struct clk *clk_per; + struct clk *clk_ahb; + int irq; + + size_t codebuf_size; + struct coda_aux_buf codebuf; + struct coda_aux_buf workbuf; + + spinlock_t irqlock; + struct mutex dev_mutex; + struct v4l2_m2m_dev *m2m_dev; + struct vb2_alloc_ctx *alloc_ctx; + int instances; +}; + +struct coda_params { + u8 h264_intra_qp; + u8 h264_inter_qp; + u8 mpeg4_intra_qp; + u8 mpeg4_inter_qp; + u8 gop_size; + int codec_mode; + enum v4l2_mpeg_video_multi_slice_mode slice_mode; + u32 framerate; + u16 bitrate; + u32 slice_max_mb; +}; + +struct coda_ctx { + struct coda_dev *dev; + int aborting; + int rawstreamon; + int compstreamon; + u32 isequence; + struct coda_q_data q_data[2]; + enum coda_inst_type inst_type; + struct coda_params params; + struct v4l2_m2m_ctx *m2m_ctx; + struct v4l2_ctrl_handler ctrls; + struct v4l2_fh fh; + struct vb2_buffer *reference; + int gopcounter; + char vpu_header[3][64]; + int vpu_header_size[3]; + struct coda_aux_buf parabuf; + int idx; +}; + +static inline void coda_write(struct coda_dev *dev, u32 data, u32 reg) +{ + v4l2_dbg(1, coda_debug, &dev->v4l2_dev, + "%s: data=0x%x, reg=0x%x\n", __func__, data, reg); + writel(data, dev->regs_base + reg); +} + +static inline unsigned int coda_read(struct coda_dev *dev, u32 reg) +{ + u32 data; + data = readl(dev->regs_base + reg); + v4l2_dbg(1, coda_debug, &dev->v4l2_dev, + "%s: data=0x%x, reg=0x%x\n", __func__, data, reg); + return data; +} + +static inline unsigned long coda_isbusy(struct coda_dev *dev) +{ + return coda_read(dev, CODA_REG_BIT_BUSY); +} + +static inline int coda_is_initialized(struct coda_dev *dev) +{ + return (coda_read(dev, CODA_REG_BIT_CUR_PC) != 0); +} + +static int coda_wait_timeout(struct coda_dev *dev) +{ + unsigned long timeout = jiffies + msecs_to_jiffies(1000); + + while (coda_isbusy(dev)) { + if (time_after(jiffies, timeout)) + return -ETIMEDOUT; + }; + return 0; +} + +static void coda_command_async(struct coda_ctx *ctx, int cmd) +{ + struct coda_dev *dev = ctx->dev; + coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY); + + coda_write(dev, ctx->idx, CODA_REG_BIT_RUN_INDEX); + coda_write(dev, ctx->params.codec_mode, CODA_REG_BIT_RUN_COD_STD); + coda_write(dev, cmd, CODA_REG_BIT_RUN_COMMAND); +} + +static int coda_command_sync(struct coda_ctx *ctx, int cmd) +{ + struct coda_dev *dev = ctx->dev; + + coda_command_async(ctx, cmd); + return coda_wait_timeout(dev); +} + +static struct coda_q_data *get_q_data(struct coda_ctx *ctx, + enum v4l2_buf_type type) +{ + switch (type) { + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + return &(ctx->q_data[V4L2_M2M_SRC]); + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + return &(ctx->q_data[V4L2_M2M_DST]); + default: + BUG(); + } + return NULL; +} + +/* + * Add one array of supported formats for each version of Coda: + * i.MX27 -> codadx6 + * i.MX51 -> coda7 + * i.MX6 -> coda960 + */ +static struct coda_fmt codadx6_formats[] = { + { + .name = "YUV 4:2:0 Planar", + .fourcc = V4L2_PIX_FMT_YUV420, + .type = CODA_FMT_RAW, + }, + { + .name = "H264 Encoded Stream", + .fourcc = V4L2_PIX_FMT_H264, + .type = CODA_FMT_ENC, + }, + { + .name = "MPEG4 Encoded Stream", + .fourcc = V4L2_PIX_FMT_MPEG4, + .type = CODA_FMT_ENC, + }, +}; + +static struct coda_fmt *find_format(struct coda_dev *dev, struct v4l2_format *f) +{ + struct coda_fmt *formats = dev->devtype->formats; + struct coda_fmt *fmt; + int num_formats = dev->devtype->num_formats; + unsigned int k; + + for (k = 0; k < num_formats; k++) { + fmt = &formats[k]; + if (fmt->fourcc == f->fmt.pix.pixelformat) + break; + } + + if (k == num_formats) + return NULL; + + return &formats[k]; +} + +/* + * V4L2 ioctl() operations. + */ +static int vidioc_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + strncpy(cap->driver, CODA_NAME, sizeof(cap->driver) - 1); + strncpy(cap->card, CODA_NAME, sizeof(cap->card) - 1); + cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT + | V4L2_CAP_STREAMING; + + return 0; +} + +static int enum_fmt(void *priv, struct v4l2_fmtdesc *f, + enum coda_fmt_type type) +{ + struct coda_ctx *ctx = fh_to_ctx(priv); + struct coda_dev *dev = ctx->dev; + struct coda_fmt *formats = dev->devtype->formats; + struct coda_fmt *fmt; + int num_formats = dev->devtype->num_formats; + int i, num = 0; + + for (i = 0; i < num_formats; i++) { + if (formats[i].type == type) { + if (num == f->index) + break; + ++num; + } + } + + if (i < num_formats) { + fmt = &formats[i]; + strlcpy(f->description, fmt->name, sizeof(f->description) - 1); + f->pixelformat = fmt->fourcc; + return 0; + } + + /* Format not found */ + return -EINVAL; +} + +static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + return enum_fmt(priv, f, CODA_FMT_ENC); +} + +static int vidioc_enum_fmt_vid_out(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + return enum_fmt(priv, f, CODA_FMT_RAW); +} + +static int vidioc_g_fmt(struct coda_ctx *ctx, struct v4l2_format *f) +{ + struct vb2_queue *vq; + struct coda_q_data *q_data; + + vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type); + if (!vq) + return -EINVAL; + + q_data = get_q_data(ctx, f->type); + + f->fmt.pix.field = V4L2_FIELD_NONE; + f->fmt.pix.pixelformat = q_data->fmt->fourcc; + if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUV420) { + f->fmt.pix.width = q_data->width; + f->fmt.pix.height = q_data->height; + f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 2); + } else { /* encoded formats h.264/mpeg4 */ + f->fmt.pix.width = 0; + f->fmt.pix.height = 0; + f->fmt.pix.bytesperline = 0; + } + f->fmt.pix.sizeimage = q_data->sizeimage; + + return 0; +} + +static int vidioc_g_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + return vidioc_g_fmt(fh_to_ctx(priv), f); +} + +static int vidioc_g_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + return vidioc_g_fmt(fh_to_ctx(priv), f); +} + +static int vidioc_try_fmt(struct coda_dev *dev, struct v4l2_format *f) +{ + enum v4l2_field field; + + if (!find_format(dev, f)) + return -EINVAL; + + field = f->fmt.pix.field; + if (field == V4L2_FIELD_ANY) + field = V4L2_FIELD_NONE; + else if (V4L2_FIELD_NONE != field) + return -EINVAL; + + /* V4L2 specification suggests the driver corrects the format struct + * if any of the dimensions is unsupported */ + f->fmt.pix.field = field; + + if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUV420) { + v4l_bound_align_image(&f->fmt.pix.width, MIN_W, MAX_W, + W_ALIGN, &f->fmt.pix.height, + MIN_H, MAX_H, H_ALIGN, S_ALIGN); + f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 2); + f->fmt.pix.sizeimage = f->fmt.pix.height * + f->fmt.pix.bytesperline; + } else { /*encoded formats h.264/mpeg4 */ + f->fmt.pix.bytesperline = CODA_MAX_FRAME_SIZE; + f->fmt.pix.sizeimage = CODA_MAX_FRAME_SIZE; + } + + return 0; +} + +static int vidioc_try_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct coda_fmt *fmt; + struct coda_ctx *ctx = fh_to_ctx(priv); + + fmt = find_format(ctx->dev, f); + /* + * Since decoding support is not implemented yet do not allow + * CODA_FMT_RAW formats in the capture interface. + */ + if (!fmt || !(fmt->type == CODA_FMT_ENC)) { + v4l2_err(&ctx->dev->v4l2_dev, + "Fourcc format (0x%08x) invalid.\n", + f->fmt.pix.pixelformat); + return -EINVAL; + } + + return vidioc_try_fmt(ctx->dev, f); +} + +static int vidioc_try_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct coda_ctx *ctx = fh_to_ctx(priv); + struct coda_fmt *fmt; + + fmt = find_format(ctx->dev, f); + /* + * Since decoding support is not implemented yet do not allow + * CODA_FMT formats in the capture interface. + */ + if (!fmt || !(fmt->type == CODA_FMT_RAW)) { + v4l2_err(&ctx->dev->v4l2_dev, + "Fourcc format (0x%08x) invalid.\n", + f->fmt.pix.pixelformat); + return -EINVAL; + } + + return vidioc_try_fmt(ctx->dev, f); +} + +static int vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f) +{ + struct coda_q_data *q_data; + struct vb2_queue *vq; + int ret; + + vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type); + if (!vq) + return -EINVAL; + + q_data = get_q_data(ctx, f->type); + if (!q_data) + return -EINVAL; + + if (vb2_is_busy(vq)) { + v4l2_err(&ctx->dev->v4l2_dev, "%s queue busy\n", __func__); + return -EBUSY; + } + + ret = vidioc_try_fmt(ctx->dev, f); + if (ret) + return ret; + + q_data->fmt = find_format(ctx->dev, f); + if (q_data->fmt->fourcc == V4L2_PIX_FMT_YUV420) { + q_data->width = f->fmt.pix.width; + q_data->height = f->fmt.pix.height; + q_data->sizeimage = q_data->width * q_data->height * 3 / 2; + } else { /* encoded format h.264/mpeg-4 */ + q_data->sizeimage = CODA_MAX_FRAME_SIZE; + } + + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, + "Setting format for type %d, wxh: %dx%d, fmt: %d\n", + f->type, q_data->width, q_data->height, q_data->fmt->fourcc); + + 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(fh_to_ctx(priv), f); +} + +static int vidioc_s_fmt_vid_out(struct file *file, void *priv, + struct v4l2_format *f) +{ + int ret; + + ret = vidioc_try_fmt_vid_out(file, priv, f); + if (ret) + return ret; + + return vidioc_s_fmt(fh_to_ctx(priv), f); +} + +static int vidioc_reqbufs(struct file *file, void *priv, + struct v4l2_requestbuffers *reqbufs) +{ + struct coda_ctx *ctx = fh_to_ctx(priv); + + return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs); +} + +static int vidioc_querybuf(struct file *file, void *priv, + struct v4l2_buffer *buf) +{ + struct coda_ctx *ctx = fh_to_ctx(priv); + + return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf); +} + +static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf) +{ + int ret; + struct coda_ctx *ctx = fh_to_ctx(priv); + + ret = v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf); + return ret; +} + +static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf) +{ + struct coda_ctx *ctx = fh_to_ctx(priv); + + return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf); +} + +static int vidioc_streamon(struct file *file, void *priv, + enum v4l2_buf_type type) +{ + struct coda_ctx *ctx = fh_to_ctx(priv); + + return v4l2_m2m_streamon(file, ctx->m2m_ctx, type); +} + +static int vidioc_streamoff(struct file *file, void *priv, + enum v4l2_buf_type type) +{ + struct coda_ctx *ctx = fh_to_ctx(priv); + + return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type); +} + +static const struct v4l2_ioctl_ops coda_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_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_reqbufs = vidioc_reqbufs, + .vidioc_querybuf = vidioc_querybuf, + + .vidioc_qbuf = vidioc_qbuf, + .vidioc_dqbuf = vidioc_dqbuf, + + .vidioc_streamon = vidioc_streamon, + .vidioc_streamoff = vidioc_streamoff, +}; + +/* + * Mem-to-mem operations. + */ + +static int coda_isr(struct coda_dev *dev) +{ + struct coda_ctx *ctx; + struct vb2_buffer *src_buf, *dst_buf, *tmp_buf; + u32 wr_ptr, start_ptr; + + ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev); + if (ctx == NULL) { + v4l2_err(&dev->v4l2_dev, "Instance released before the end of transaction\n"); + return IRQ_HANDLED; + } + + if (ctx->aborting) { + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, + "task has been aborted\n"); + return IRQ_HANDLED; + } + + if (coda_isbusy(ctx->dev)) { + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, + "coda is still busy!!!!\n"); + return IRQ_NONE; + } + + src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx); + dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); + + /* Get results from the coda */ + coda_read(dev, CODA_RET_ENC_PIC_TYPE); + start_ptr = coda_read(dev, CODA_CMD_ENC_PIC_BB_START); + wr_ptr = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)); + /* Calculate bytesused field */ + if (dst_buf->v4l2_buf.sequence == 0) { + dst_buf->v4l2_planes[0].bytesused = (wr_ptr - start_ptr) + + ctx->vpu_header_size[0] + + ctx->vpu_header_size[1] + + ctx->vpu_header_size[2]; + } else { + dst_buf->v4l2_planes[0].bytesused = (wr_ptr - start_ptr); + } + + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, "frame size = %u\n", + wr_ptr - start_ptr); + + coda_read(dev, CODA_RET_ENC_PIC_SLICE_NUM); + coda_read(dev, CODA_RET_ENC_PIC_FLAG); + + if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) { + dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME; + dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME; + } else { + dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME; + dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME; + } + + /* Free previous reference picture if available */ + if (ctx->reference) { + v4l2_m2m_buf_done(ctx->reference, VB2_BUF_STATE_DONE); + ctx->reference = NULL; + } + + /* + * For the last frame of the gop we don't need to save + * a reference picture. + */ + v4l2_m2m_dst_buf_remove(ctx->m2m_ctx); + tmp_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx); + if (ctx->gopcounter == 0) + v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE); + else + ctx->reference = tmp_buf; + + v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE); + + ctx->gopcounter--; + if (ctx->gopcounter < 0) + ctx->gopcounter = ctx->params.gop_size - 1; + + v4l2_dbg(1, coda_debug, &dev->v4l2_dev, + "job finished: encoding frame (%d) (%s)\n", + dst_buf->v4l2_buf.sequence, + (dst_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) ? + "KEYFRAME" : "PFRAME"); + + v4l2_m2m_job_finish(ctx->dev->m2m_dev, ctx->m2m_ctx); + + return IRQ_HANDLED; +} + +static void coda_device_run(void *m2m_priv) +{ + struct coda_ctx *ctx = m2m_priv; + struct coda_q_data *q_data_src, *q_data_dst; + struct vb2_buffer *src_buf, *dst_buf; + struct coda_dev *dev = ctx->dev; + int force_ipicture; + int quant_param = 0; + u32 picture_y, picture_cb, picture_cr; + u32 pic_stream_buffer_addr, pic_stream_buffer_size; + u32 dst_fourcc; + + src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx); + dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); + q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); + q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); + dst_fourcc = q_data_dst->fmt->fourcc; + + src_buf->v4l2_buf.sequence = ctx->isequence; + dst_buf->v4l2_buf.sequence = ctx->isequence; + ctx->isequence++; + + /* + * Workaround coda firmware BUG that only marks the first + * frame as IDR. This is a problem for some decoders that can't + * recover when a frame is lost. + */ + if (src_buf->v4l2_buf.sequence % ctx->params.gop_size) { + src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME; + src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_KEYFRAME; + } else { + src_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME; + src_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME; + } + + /* + * Copy headers at the beginning of the first frame for H.264 only. + * In MPEG4 they are already copied by the coda. + */ + if (src_buf->v4l2_buf.sequence == 0) { + pic_stream_buffer_addr = + vb2_dma_contig_plane_dma_addr(dst_buf, 0) + + ctx->vpu_header_size[0] + + ctx->vpu_header_size[1] + + ctx->vpu_header_size[2]; + pic_stream_buffer_size = CODA_MAX_FRAME_SIZE - + ctx->vpu_header_size[0] - + ctx->vpu_header_size[1] - + ctx->vpu_header_size[2]; + memcpy(vb2_plane_vaddr(dst_buf, 0), + &ctx->vpu_header[0][0], ctx->vpu_header_size[0]); + memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->vpu_header_size[0], + &ctx->vpu_header[1][0], ctx->vpu_header_size[1]); + memcpy(vb2_plane_vaddr(dst_buf, 0) + ctx->vpu_header_size[0] + + ctx->vpu_header_size[1], &ctx->vpu_header[2][0], + ctx->vpu_header_size[2]); + } else { + pic_stream_buffer_addr = + vb2_dma_contig_plane_dma_addr(dst_buf, 0); + pic_stream_buffer_size = CODA_MAX_FRAME_SIZE; + } + + if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) { + force_ipicture = 1; + switch (dst_fourcc) { + case V4L2_PIX_FMT_H264: + quant_param = ctx->params.h264_intra_qp; + break; + case V4L2_PIX_FMT_MPEG4: + quant_param = ctx->params.mpeg4_intra_qp; + break; + default: + v4l2_warn(&ctx->dev->v4l2_dev, + "cannot set intra qp, fmt not supported\n"); + break; + } + } else { + force_ipicture = 0; + switch (dst_fourcc) { + case V4L2_PIX_FMT_H264: + quant_param = ctx->params.h264_inter_qp; + break; + case V4L2_PIX_FMT_MPEG4: + quant_param = ctx->params.mpeg4_inter_qp; + break; + default: + v4l2_warn(&ctx->dev->v4l2_dev, + "cannot set inter qp, fmt not supported\n"); + break; + } + } + + /* submit */ + coda_write(dev, 0, CODA_CMD_ENC_PIC_ROT_MODE); + coda_write(dev, quant_param, CODA_CMD_ENC_PIC_QS); + + + picture_y = vb2_dma_contig_plane_dma_addr(src_buf, 0); + picture_cb = picture_y + q_data_src->width * q_data_src->height; + picture_cr = picture_cb + q_data_src->width / 2 * + q_data_src->height / 2; + + coda_write(dev, picture_y, CODA_CMD_ENC_PIC_SRC_ADDR_Y); + coda_write(dev, picture_cb, CODA_CMD_ENC_PIC_SRC_ADDR_CB); + coda_write(dev, picture_cr, CODA_CMD_ENC_PIC_SRC_ADDR_CR); + coda_write(dev, force_ipicture << 1 & 0x2, + CODA_CMD_ENC_PIC_OPTION); + + coda_write(dev, pic_stream_buffer_addr, CODA_CMD_ENC_PIC_BB_START); + coda_write(dev, pic_stream_buffer_size / 1024, + CODA_CMD_ENC_PIC_BB_SIZE); + coda_command_async(ctx, CODA_COMMAND_PIC_RUN); +} + +static int coda_job_ready(void *m2m_priv) +{ + struct coda_ctx *ctx = m2m_priv; + + /* + * For both 'P' and 'key' frame cases 1 picture + * and 1 frame are needed. + */ + if (!(v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) >= 1) || + !(v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx) >= 1)) { + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, + "not ready: not enough video buffers.\n"); + return 0; + } + + /* For P frames a reference picture is needed too */ + if ((ctx->gopcounter != (ctx->params.gop_size - 1)) && + (!ctx->reference)) { + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, + "not ready: reference picture not available.\n"); + return 0; + } + + if (coda_isbusy(ctx->dev)) { + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, + "not ready: coda is still busy.\n"); + return 0; + } + + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, + "job ready\n"); + return 1; +} + +static void coda_job_abort(void *priv) +{ + struct coda_ctx *ctx = priv; + struct coda_dev *dev = ctx->dev; + + ctx->aborting = 1; + + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, + "Aborting task\n"); + + v4l2_m2m_job_finish(dev->m2m_dev, ctx->m2m_ctx); +} + +static void coda_lock(void *m2m_priv) +{ + struct coda_ctx *ctx = m2m_priv; + struct coda_dev *pcdev = ctx->dev; + mutex_lock(&pcdev->dev_mutex); +} + +static void coda_unlock(void *m2m_priv) +{ + struct coda_ctx *ctx = m2m_priv; + struct coda_dev *pcdev = ctx->dev; + mutex_unlock(&pcdev->dev_mutex); +} + +static struct v4l2_m2m_ops coda_m2m_ops = { + .device_run = coda_device_run, + .job_ready = coda_job_ready, + .job_abort = coda_job_abort, + .lock = coda_lock, + .unlock = coda_unlock, +}; + +static void set_default_params(struct coda_ctx *ctx) +{ + struct coda_dev *dev = ctx->dev; + + ctx->params.codec_mode = CODA_MODE_INVALID; + ctx->params.framerate = 30; + ctx->reference = NULL; + ctx->aborting = 0; + + /* Default formats for output and input queues */ + ctx->q_data[V4L2_M2M_SRC].fmt = &dev->devtype->formats[0]; + ctx->q_data[V4L2_M2M_DST].fmt = &dev->devtype->formats[1]; +} + +/* + * Queue operations + */ +static int coda_queue_setup(struct vb2_queue *vq, + const struct v4l2_format *fmt, + unsigned int *nbuffers, unsigned int *nplanes, + unsigned int sizes[], void *alloc_ctxs[]) +{ + struct coda_ctx *ctx = vb2_get_drv_priv(vq); + unsigned int size; + + if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { + *nbuffers = CODA_OUTPUT_BUFS; + if (fmt) + size = fmt->fmt.pix.width * + fmt->fmt.pix.height * 3 / 2; + else + size = CODA_MAX_WIDTH * + CODA_MAX_HEIGHT * 3 / 2; + } else { + *nbuffers = CODA_CAPTURE_BUFS; + size = CODA_MAX_FRAME_SIZE; + } + + *nplanes = 1; + sizes[0] = size; + + alloc_ctxs[0] = ctx->dev->alloc_ctx; + + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, + "get %d buffer(s) of size %d each.\n", *nbuffers, size); + + return 0; +} + +static int coda_buf_prepare(struct vb2_buffer *vb) +{ + struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + struct coda_q_data *q_data; + + q_data = get_q_data(ctx, vb->vb2_queue->type); + + if (vb2_plane_size(vb, 0) < q_data->sizeimage) { + v4l2_warn(&ctx->dev->v4l2_dev, + "%s data will not fit into plane (%lu < %lu)\n", + __func__, vb2_plane_size(vb, 0), + (long)q_data->sizeimage); + return -EINVAL; + } + + vb2_set_plane_payload(vb, 0, q_data->sizeimage); + + return 0; +} + +static void coda_buf_queue(struct vb2_buffer *vb) +{ + struct coda_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); + v4l2_m2m_buf_queue(ctx->m2m_ctx, vb); +} + +static void coda_wait_prepare(struct vb2_queue *q) +{ + struct coda_ctx *ctx = vb2_get_drv_priv(q); + coda_unlock(ctx); +} + +static void coda_wait_finish(struct vb2_queue *q) +{ + struct coda_ctx *ctx = vb2_get_drv_priv(q); + coda_lock(ctx); +} + +static int coda_start_streaming(struct vb2_queue *q, unsigned int count) +{ + struct coda_ctx *ctx = vb2_get_drv_priv(q); + struct coda_dev *dev = ctx->dev; + u32 bitstream_buf, bitstream_size; + + if (count < 1) + return -EINVAL; + + if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) + ctx->rawstreamon = 1; + else + ctx->compstreamon = 1; + + if (ctx->rawstreamon & ctx->compstreamon) { + struct coda_q_data *q_data_src, *q_data_dst; + u32 dst_fourcc; + struct vb2_buffer *buf; + struct vb2_queue *src_vq; + u32 value; + int i = 0; + + ctx->gopcounter = ctx->params.gop_size - 1; + + q_data_src = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); + buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); + bitstream_buf = vb2_dma_contig_plane_dma_addr(buf, 0); + q_data_dst = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE); + bitstream_size = q_data_dst->sizeimage; + dst_fourcc = q_data_dst->fmt->fourcc; + + /* Find out whether coda must encode or decode */ + if (q_data_src->fmt->type == CODA_FMT_RAW && + q_data_dst->fmt->type == CODA_FMT_ENC) { + ctx->inst_type = CODA_INST_ENCODER; + } else if (q_data_src->fmt->type == CODA_FMT_ENC && + q_data_dst->fmt->type == CODA_FMT_RAW) { + ctx->inst_type = CODA_INST_DECODER; + v4l2_err(&ctx->dev->v4l2_dev, "decoding not supported.\n"); + return -EINVAL; + } else { + v4l2_err(&ctx->dev->v4l2_dev, "couldn't tell instance type.\n"); + return -EINVAL; + } + + if (!coda_is_initialized(dev)) { + v4l2_err(&ctx->dev->v4l2_dev, "coda is not initialized.\n"); + return -EFAULT; + } + coda_write(dev, ctx->parabuf.paddr, CODA_REG_BIT_PARA_BUF_ADDR); + coda_write(dev, bitstream_buf, CODA_REG_BIT_RD_PTR(ctx->idx)); + coda_write(dev, bitstream_buf, CODA_REG_BIT_WR_PTR(ctx->idx)); + switch (dev->devtype->product) { + case CODA_DX6: + /* + * We should use (CODADX6_STREAM_BUF_PIC_RESET | + * CODADX6_STREAM_BUF_PIC_FLUSH) but it doesn't work + * with firmware 2.2.5. + */ + coda_write(dev, (3 << 3), CODA_REG_BIT_STREAM_CTRL); + break; + default: + coda_write(dev, CODA7_STREAM_BUF_PIC_RESET | + CODA7_STREAM_BUF_PIC_FLUSH, CODA_REG_BIT_STREAM_CTRL); + } + + /* Configure the coda */ + coda_write(dev, 0xffff4c00, CODA_REG_BIT_SEARCH_RAM_BASE_ADDR); + + /* Could set rotation here if needed */ + switch (dev->devtype->product) { + case CODA_DX6: + value = (q_data_src->width & CODADX6_PICWIDTH_MASK) << CODADX6_PICWIDTH_OFFSET; + break; + default: + value = (q_data_src->width & CODA7_PICWIDTH_MASK) << CODA7_PICWIDTH_OFFSET; + } + value |= (q_data_src->height & CODA_PICHEIGHT_MASK) << CODA_PICHEIGHT_OFFSET; + coda_write(dev, value, CODA_CMD_ENC_SEQ_SRC_SIZE); + coda_write(dev, ctx->params.framerate, + CODA_CMD_ENC_SEQ_SRC_F_RATE); + + switch (dst_fourcc) { + case V4L2_PIX_FMT_MPEG4: + ctx->params.codec_mode = (dev->devtype->product == CODA_DX6) ? CODADX6_MODE_ENCODE_MP4 : CODA7_MODE_ENCODE_MP4; + coda_write(dev, CODA_STD_MPEG4, CODA_CMD_ENC_SEQ_COD_STD); + value = (0 & CODA_MP4PARAM_VERID_MASK) << CODA_MP4PARAM_VERID_OFFSET; + value |= (0 & CODA_MP4PARAM_INTRADCVLCTHR_MASK) << CODA_MP4PARAM_INTRADCVLCTHR_OFFSET; + value |= (0 & CODA_MP4PARAM_REVERSIBLEVLCENABLE_MASK) << CODA_MP4PARAM_REVERSIBLEVLCENABLE_OFFSET; + value |= 0 & CODA_MP4PARAM_DATAPARTITIONENABLE_MASK; + coda_write(dev, value, CODA_CMD_ENC_SEQ_MP4_PARA); + break; + case V4L2_PIX_FMT_H264: + ctx->params.codec_mode = (dev->devtype->product == CODA_DX6) ? CODADX6_MODE_ENCODE_H264 : CODA7_MODE_ENCODE_H264; + coda_write(dev, CODA_STD_H264, CODA_CMD_ENC_SEQ_COD_STD); + value = (0 & CODA_264PARAM_DEBLKFILTEROFFSETBETA_MASK) << CODA_264PARAM_DEBLKFILTEROFFSETBETA_OFFSET; + value |= (0 & CODA_264PARAM_DEBLKFILTEROFFSETALPHA_MASK) << CODA_264PARAM_DEBLKFILTEROFFSETALPHA_OFFSET; + value |= (0 & CODA_264PARAM_DISABLEDEBLK_MASK) << CODA_264PARAM_DISABLEDEBLK_OFFSET; + value |= (0 & CODA_264PARAM_CONSTRAINEDINTRAPREDFLAG_MASK) << CODA_264PARAM_CONSTRAINEDINTRAPREDFLAG_OFFSET; + value |= 0 & CODA_264PARAM_CHROMAQPOFFSET_MASK; + coda_write(dev, value, CODA_CMD_ENC_SEQ_264_PARA); + break; + default: + v4l2_err(&ctx->dev->v4l2_dev, + "dst format (0x%08x) invalid.\n", dst_fourcc); + return -EINVAL; + } + + value = (ctx->params.slice_max_mb & CODA_SLICING_SIZE_MASK) << CODA_SLICING_SIZE_OFFSET; + value |= (1 & CODA_SLICING_UNIT_MASK) << CODA_SLICING_UNIT_OFFSET; + if (ctx->params.slice_mode == V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB) + value |= 1 & CODA_SLICING_MODE_MASK; + coda_write(dev, value, CODA_CMD_ENC_SEQ_SLICE_MODE); + value = ctx->params.gop_size & CODA_GOP_SIZE_MASK; + coda_write(dev, value, CODA_CMD_ENC_SEQ_GOP_SIZE); + + if (ctx->params.bitrate) { + /* Rate control enabled */ + value = (0 & CODA_RATECONTROL_AUTOSKIP_MASK) << CODA_RATECONTROL_AUTOSKIP_OFFSET; + value |= (0 & CODA_RATECONTROL_INITIALDELAY_MASK) << CODA_RATECONTROL_INITIALDELAY_OFFSET; + value |= (ctx->params.bitrate & CODA_RATECONTROL_BITRATE_MASK) << CODA_RATECONTROL_BITRATE_OFFSET; + value |= 1 & CODA_RATECONTROL_ENABLE_MASK; + } else { + value = 0; + } + coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_PARA); + + coda_write(dev, 0, CODA_CMD_ENC_SEQ_RC_BUF_SIZE); + coda_write(dev, 0, CODA_CMD_ENC_SEQ_INTRA_REFRESH); + + coda_write(dev, bitstream_buf, CODA_CMD_ENC_SEQ_BB_START); + coda_write(dev, bitstream_size / 1024, CODA_CMD_ENC_SEQ_BB_SIZE); + + /* set default gamma */ + value = (CODA_DEFAULT_GAMMA & CODA_GAMMA_MASK) << CODA_GAMMA_OFFSET; + coda_write(dev, value, CODA_CMD_ENC_SEQ_RC_GAMMA); + + value = (CODA_DEFAULT_GAMMA > 0) << CODA_OPTION_GAMMA_OFFSET; + value |= (0 & CODA_OPTION_SLICEREPORT_MASK) << CODA_OPTION_SLICEREPORT_OFFSET; + coda_write(dev, value, CODA_CMD_ENC_SEQ_OPTION); + + if (dst_fourcc == V4L2_PIX_FMT_H264) { + value = (FMO_SLICE_SAVE_BUF_SIZE << 7); + value |= (0 & CODA_FMOPARAM_TYPE_MASK) << CODA_FMOPARAM_TYPE_OFFSET; + value |= 0 & CODA_FMOPARAM_SLICENUM_MASK; + coda_write(dev, value, CODA_CMD_ENC_SEQ_FMO); + } + + if (coda_command_sync(ctx, CODA_COMMAND_SEQ_INIT)) { + v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_SEQ_INIT timeout\n"); + return -ETIMEDOUT; + } + + if (coda_read(dev, CODA_RET_ENC_SEQ_SUCCESS) == 0) + return -EFAULT; + + /* + * Walk the src buffer list and let the codec know the + * addresses of the pictures. + */ + src_vq = v4l2_m2m_get_vq(ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); + for (i = 0; i < src_vq->num_buffers; i++) { + u32 *p; + + buf = src_vq->bufs[i]; + p = ctx->parabuf.vaddr; + + p[i * 3] = vb2_dma_contig_plane_dma_addr(buf, 0); + p[i * 3 + 1] = p[i * 3] + q_data_src->width * + q_data_src->height; + p[i * 3 + 2] = p[i * 3 + 1] + q_data_src->width / 2 * + q_data_src->height / 2; + } + + coda_write(dev, src_vq->num_buffers, CODA_CMD_SET_FRAME_BUF_NUM); + coda_write(dev, q_data_src->width, CODA_CMD_SET_FRAME_BUF_STRIDE); + if (coda_command_sync(ctx, CODA_COMMAND_SET_FRAME_BUF)) { + v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_SET_FRAME_BUF timeout\n"); + return -ETIMEDOUT; + } + + /* Save stream headers */ + buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx); + switch (dst_fourcc) { + case V4L2_PIX_FMT_H264: + /* + * Get SPS in the first frame and copy it to an + * intermediate buffer. + */ + coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START); + coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE); + coda_write(dev, CODA_HEADER_H264_SPS, CODA_CMD_ENC_HEADER_CODE); + if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) { + v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n"); + return -ETIMEDOUT; + } + ctx->vpu_header_size[0] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) - + coda_read(dev, CODA_CMD_ENC_HEADER_BB_START); + memcpy(&ctx->vpu_header[0][0], vb2_plane_vaddr(buf, 0), + ctx->vpu_header_size[0]); + + /* + * Get PPS in the first frame and copy it to an + * intermediate buffer. + */ + coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START); + coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE); + coda_write(dev, CODA_HEADER_H264_PPS, CODA_CMD_ENC_HEADER_CODE); + if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) { + v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n"); + return -ETIMEDOUT; + } + ctx->vpu_header_size[1] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) - + coda_read(dev, CODA_CMD_ENC_HEADER_BB_START); + memcpy(&ctx->vpu_header[1][0], vb2_plane_vaddr(buf, 0), + ctx->vpu_header_size[1]); + ctx->vpu_header_size[2] = 0; + break; + case V4L2_PIX_FMT_MPEG4: + /* + * Get VOS in the first frame and copy it to an + * intermediate buffer + */ + coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START); + coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE); + coda_write(dev, CODA_HEADER_MP4V_VOS, CODA_CMD_ENC_HEADER_CODE); + if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) { + v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER timeout\n"); + return -ETIMEDOUT; + } + ctx->vpu_header_size[0] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) - + coda_read(dev, CODA_CMD_ENC_HEADER_BB_START); + memcpy(&ctx->vpu_header[0][0], vb2_plane_vaddr(buf, 0), + ctx->vpu_header_size[0]); + + coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START); + coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE); + coda_write(dev, CODA_HEADER_MP4V_VIS, CODA_CMD_ENC_HEADER_CODE); + if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) { + v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER failed\n"); + return -ETIMEDOUT; + } + ctx->vpu_header_size[1] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) - + coda_read(dev, CODA_CMD_ENC_HEADER_BB_START); + memcpy(&ctx->vpu_header[1][0], vb2_plane_vaddr(buf, 0), + ctx->vpu_header_size[1]); + + coda_write(dev, vb2_dma_contig_plane_dma_addr(buf, 0), CODA_CMD_ENC_HEADER_BB_START); + coda_write(dev, bitstream_size, CODA_CMD_ENC_HEADER_BB_SIZE); + coda_write(dev, CODA_HEADER_MP4V_VOL, CODA_CMD_ENC_HEADER_CODE); + if (coda_command_sync(ctx, CODA_COMMAND_ENCODE_HEADER)) { + v4l2_err(&ctx->dev->v4l2_dev, "CODA_COMMAND_ENCODE_HEADER failed\n"); + return -ETIMEDOUT; + } + ctx->vpu_header_size[2] = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->idx)) - + coda_read(dev, CODA_CMD_ENC_HEADER_BB_START); + memcpy(&ctx->vpu_header[2][0], vb2_plane_vaddr(buf, 0), + ctx->vpu_header_size[2]); + break; + default: + /* No more formats need to save headers at the moment */ + break; + } + } + return 0; +} + +static int coda_stop_streaming(struct vb2_queue *q) +{ + struct coda_ctx *ctx = vb2_get_drv_priv(q); + + if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) { + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, + "%s: output\n", __func__); + ctx->rawstreamon = 0; + } else { + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, + "%s: capture\n", __func__); + ctx->compstreamon = 0; + } + + if (!ctx->rawstreamon && !ctx->compstreamon) { + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, + "%s: sent command 'SEQ_END' to coda\n", __func__); + if (coda_command_sync(ctx, CODA_COMMAND_SEQ_END)) { + v4l2_err(&ctx->dev->v4l2_dev, + "CODA_COMMAND_SEQ_END failed\n"); + return -ETIMEDOUT; + } + } + + return 0; +} + +static struct vb2_ops coda_qops = { + .queue_setup = coda_queue_setup, + .buf_prepare = coda_buf_prepare, + .buf_queue = coda_buf_queue, + .wait_prepare = coda_wait_prepare, + .wait_finish = coda_wait_finish, + .start_streaming = coda_start_streaming, + .stop_streaming = coda_stop_streaming, +}; + +static int coda_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct coda_ctx *ctx = + container_of(ctrl->handler, struct coda_ctx, ctrls); + + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, + "s_ctrl: id = %d, val = %d\n", ctrl->id, ctrl->val); + + switch (ctrl->id) { + case V4L2_CID_MPEG_VIDEO_BITRATE: + ctx->params.bitrate = ctrl->val / 1000; + break; + case V4L2_CID_MPEG_VIDEO_GOP_SIZE: + ctx->params.gop_size = ctrl->val; + break; + case V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP: + ctx->params.h264_intra_qp = ctrl->val; + break; + case V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP: + ctx->params.h264_inter_qp = ctrl->val; + break; + case V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP: + ctx->params.mpeg4_intra_qp = ctrl->val; + break; + case V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP: + ctx->params.mpeg4_inter_qp = ctrl->val; + break; + case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE: + ctx->params.slice_mode = ctrl->val; + break; + case V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB: + ctx->params.slice_max_mb = ctrl->val; + break; + case V4L2_CID_MPEG_VIDEO_HEADER_MODE: + break; + default: + v4l2_dbg(1, coda_debug, &ctx->dev->v4l2_dev, + "Invalid control, id=%d, val=%d\n", + ctrl->id, ctrl->val); + return -EINVAL; + } + + return 0; +} + +static struct v4l2_ctrl_ops coda_ctrl_ops = { + .s_ctrl = coda_s_ctrl, +}; + +static int coda_ctrls_setup(struct coda_ctx *ctx) +{ + v4l2_ctrl_handler_init(&ctx->ctrls, 9); + + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, + V4L2_CID_MPEG_VIDEO_BITRATE, 0, 32767000, 1, 0); + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, + V4L2_CID_MPEG_VIDEO_GOP_SIZE, 1, 60, 1, 16); + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, + V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP, 1, 51, 1, 25); + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, + V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP, 1, 51, 1, 25); + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, + V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP, 1, 31, 1, 2); + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, + V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP, 1, 31, 1, 2); + v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops, + V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE, + V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB, 0, + V4L2_MPEG_VIDEO_MULTI_SICE_MODE_MAX_MB); + v4l2_ctrl_new_std(&ctx->ctrls, &coda_ctrl_ops, + V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB, 1, 0x3fffffff, 1, 1); + v4l2_ctrl_new_std_menu(&ctx->ctrls, &coda_ctrl_ops, + V4L2_CID_MPEG_VIDEO_HEADER_MODE, + V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME, + (1 << V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE), + V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME); + + return v4l2_ctrl_handler_setup(&ctx->ctrls); +} + +static int coda_queue_init(void *priv, struct vb2_queue *src_vq, + struct vb2_queue *dst_vq) +{ + struct coda_ctx *ctx = priv; + int ret; + + memset(src_vq, 0, sizeof(*src_vq)); + src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; + src_vq->io_modes = VB2_MMAP; + src_vq->drv_priv = ctx; + src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); + src_vq->ops = &coda_qops; + src_vq->mem_ops = &vb2_dma_contig_memops; + + ret = vb2_queue_init(src_vq); + if (ret) + return ret; + + memset(dst_vq, 0, sizeof(*dst_vq)); + dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + dst_vq->io_modes = VB2_MMAP; + dst_vq->drv_priv = ctx; + dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); + dst_vq->ops = &coda_qops; + dst_vq->mem_ops = &vb2_dma_contig_memops; + + return vb2_queue_init(dst_vq); +} + +static int coda_open(struct file *file) +{ + struct coda_dev *dev = video_drvdata(file); + struct coda_ctx *ctx = NULL; + int ret = 0; + + if (dev->instances >= CODA_MAX_INSTANCES) + return -EBUSY; + + ctx = kzalloc(sizeof *ctx, GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + v4l2_fh_init(&ctx->fh, video_devdata(file)); + file->private_data = &ctx->fh; + v4l2_fh_add(&ctx->fh); + ctx->dev = dev; + + set_default_params(ctx); + ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, + &coda_queue_init); + if (IS_ERR(ctx->m2m_ctx)) { + int ret = PTR_ERR(ctx->m2m_ctx); + + v4l2_err(&dev->v4l2_dev, "%s return error (%d)\n", + __func__, ret); + goto err; + } + ret = coda_ctrls_setup(ctx); + if (ret) { + v4l2_err(&dev->v4l2_dev, "failed to setup coda controls\n"); + + goto err; + } + + ctx->fh.ctrl_handler = &ctx->ctrls; + + ctx->parabuf.vaddr = dma_alloc_coherent(&dev->plat_dev->dev, + CODA_PARA_BUF_SIZE, &ctx->parabuf.paddr, GFP_KERNEL); + if (!ctx->parabuf.vaddr) { + v4l2_err(&dev->v4l2_dev, "failed to allocate parabuf"); + ret = -ENOMEM; + goto err; + } + + coda_lock(ctx); + ctx->idx = dev->instances++; + coda_unlock(ctx); + + clk_prepare_enable(dev->clk_per); + clk_prepare_enable(dev->clk_ahb); + + v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Created instance %d (%p)\n", + ctx->idx, ctx); + + return 0; + +err: + v4l2_fh_del(&ctx->fh); + v4l2_fh_exit(&ctx->fh); + kfree(ctx); + return ret; +} + +static int coda_release(struct file *file) +{ + struct coda_dev *dev = video_drvdata(file); + struct coda_ctx *ctx = fh_to_ctx(file->private_data); + + v4l2_dbg(1, coda_debug, &dev->v4l2_dev, "Releasing instance %p\n", + ctx); + + coda_lock(ctx); + dev->instances--; + coda_unlock(ctx); + + dma_free_coherent(&dev->plat_dev->dev, CODA_PARA_BUF_SIZE, + ctx->parabuf.vaddr, ctx->parabuf.paddr); + v4l2_m2m_ctx_release(ctx->m2m_ctx); + v4l2_ctrl_handler_free(&ctx->ctrls); + clk_disable_unprepare(dev->clk_per); + clk_disable_unprepare(dev->clk_ahb); + v4l2_fh_del(&ctx->fh); + v4l2_fh_exit(&ctx->fh); + kfree(ctx); + + return 0; +} + +static unsigned int coda_poll(struct file *file, + struct poll_table_struct *wait) +{ + struct coda_ctx *ctx = fh_to_ctx(file->private_data); + int ret; + + coda_lock(ctx); + ret = v4l2_m2m_poll(file, ctx->m2m_ctx, wait); + coda_unlock(ctx); + return ret; +} + +static int coda_mmap(struct file *file, struct vm_area_struct *vma) +{ + struct coda_ctx *ctx = fh_to_ctx(file->private_data); + + return v4l2_m2m_mmap(file, ctx->m2m_ctx, vma); +} + +static const struct v4l2_file_operations coda_fops = { + .owner = THIS_MODULE, + .open = coda_open, + .release = coda_release, + .poll = coda_poll, + .unlocked_ioctl = video_ioctl2, + .mmap = coda_mmap, +}; + +static irqreturn_t coda_irq_handler(int irq, void *data) +{ + struct coda_dev *dev = data; + + /* read status register to attend the IRQ */ + coda_read(dev, CODA_REG_BIT_INT_STATUS); + coda_write(dev, CODA_REG_BIT_INT_CLEAR_SET, + CODA_REG_BIT_INT_CLEAR); + + return coda_isr(dev); +} + +static u32 coda_supported_firmwares[] = { + CODA_FIRMWARE_VERNUM(CODA_DX6, 2, 2, 5), +}; + +static bool coda_firmware_supported(u32 vernum) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(coda_supported_firmwares); i++) + if (vernum == coda_supported_firmwares[i]) + return true; + return false; +} + +static char *coda_product_name(int product) +{ + static char buf[9]; + + switch (product) { + case CODA_DX6: + return "CodaDx6"; + default: + snprintf(buf, sizeof(buf), "(0x%04x)", product); + return buf; + } +} + +static int coda_hw_init(struct coda_dev *dev, const struct firmware *fw) +{ + u16 product, major, minor, release; + u32 data; + u16 *p; + int i; + + clk_prepare_enable(dev->clk_per); + clk_prepare_enable(dev->clk_ahb); + + /* Copy the whole firmware image to the code buffer */ + memcpy(dev->codebuf.vaddr, fw->data, fw->size); + /* + * Copy the first CODA_ISRAM_SIZE in the internal SRAM. + * This memory seems to be big-endian here, which is weird, since + * the internal ARM processor of the coda is little endian. + * Data in this SRAM survives a reboot. + */ + p = (u16 *)fw->data; + for (i = 0; i < (CODA_ISRAM_SIZE / 2); i++) { + data = CODA_DOWN_ADDRESS_SET(i) | + CODA_DOWN_DATA_SET(p[i ^ 1]); + coda_write(dev, data, CODA_REG_BIT_CODE_DOWN); + } + release_firmware(fw); + + /* Tell the BIT where to find everything it needs */ + coda_write(dev, dev->workbuf.paddr, + CODA_REG_BIT_WORK_BUF_ADDR); + coda_write(dev, dev->codebuf.paddr, + CODA_REG_BIT_CODE_BUF_ADDR); + coda_write(dev, 0, CODA_REG_BIT_CODE_RUN); + + /* Set default values */ + switch (dev->devtype->product) { + case CODA_DX6: + coda_write(dev, CODADX6_STREAM_BUF_PIC_FLUSH, CODA_REG_BIT_STREAM_CTRL); + break; + default: + coda_write(dev, CODA7_STREAM_BUF_PIC_FLUSH, CODA_REG_BIT_STREAM_CTRL); + } + coda_write(dev, 0, CODA_REG_BIT_FRAME_MEM_CTRL); + coda_write(dev, CODA_INT_INTERRUPT_ENABLE, + CODA_REG_BIT_INT_ENABLE); + + /* Reset VPU and start processor */ + data = coda_read(dev, CODA_REG_BIT_CODE_RESET); + data |= CODA_REG_RESET_ENABLE; + coda_write(dev, data, CODA_REG_BIT_CODE_RESET); + udelay(10); + data &= ~CODA_REG_RESET_ENABLE; + coda_write(dev, data, CODA_REG_BIT_CODE_RESET); + coda_write(dev, CODA_REG_RUN_ENABLE, CODA_REG_BIT_CODE_RUN); + + /* Load firmware */ + coda_write(dev, 0, CODA_CMD_FIRMWARE_VERNUM); + coda_write(dev, CODA_REG_BIT_BUSY_FLAG, CODA_REG_BIT_BUSY); + coda_write(dev, 0, CODA_REG_BIT_RUN_INDEX); + coda_write(dev, 0, CODA_REG_BIT_RUN_COD_STD); + coda_write(dev, CODA_COMMAND_FIRMWARE_GET, CODA_REG_BIT_RUN_COMMAND); + if (coda_wait_timeout(dev)) { + clk_disable_unprepare(dev->clk_per); + clk_disable_unprepare(dev->clk_ahb); + v4l2_err(&dev->v4l2_dev, "firmware get command error\n"); + return -EIO; + } + + /* Check we are compatible with the loaded firmware */ + data = coda_read(dev, CODA_CMD_FIRMWARE_VERNUM); + product = CODA_FIRMWARE_PRODUCT(data); + major = CODA_FIRMWARE_MAJOR(data); + minor = CODA_FIRMWARE_MINOR(data); + release = CODA_FIRMWARE_RELEASE(data); + + clk_disable_unprepare(dev->clk_per); + clk_disable_unprepare(dev->clk_ahb); + + if (product != dev->devtype->product) { + v4l2_err(&dev->v4l2_dev, "Wrong firmware. Hw: %s, Fw: %s," + " Version: %u.%u.%u\n", + coda_product_name(dev->devtype->product), + coda_product_name(product), major, minor, release); + return -EINVAL; + } + + v4l2_info(&dev->v4l2_dev, "Initialized %s.\n", + coda_product_name(product)); + + if (coda_firmware_supported(data)) { + v4l2_info(&dev->v4l2_dev, "Firmware version: %u.%u.%u\n", + major, minor, release); + } else { + v4l2_warn(&dev->v4l2_dev, "Unsupported firmware version: " + "%u.%u.%u\n", major, minor, release); + } + + return 0; +} + +static void coda_fw_callback(const struct firmware *fw, void *context) +{ + struct coda_dev *dev = context; + struct platform_device *pdev = dev->plat_dev; + struct video_device *vfd; + int ret; + + if (!fw) { + v4l2_err(&dev->v4l2_dev, "firmware request failed\n"); + return; + } + + /* allocate auxiliary per-device code buffer for the BIT processor */ + dev->codebuf_size = fw->size; + dev->codebuf.vaddr = dma_alloc_coherent(&pdev->dev, fw->size, + &dev->codebuf.paddr, + GFP_KERNEL); + if (!dev->codebuf.vaddr) { + dev_err(&pdev->dev, "failed to allocate code buffer\n"); + return; + } + + ret = coda_hw_init(dev, fw); + if (ret) { + v4l2_err(&dev->v4l2_dev, "HW initialization failed\n"); + return; + } + + vfd = video_device_alloc(); + if (!vfd) { + v4l2_err(&dev->v4l2_dev, "Failed to allocate video device\n"); + return; + } + + vfd->fops = &coda_fops, + vfd->ioctl_ops = &coda_ioctl_ops; + vfd->release = video_device_release, + vfd->lock = &dev->dev_mutex; + vfd->v4l2_dev = &dev->v4l2_dev; + snprintf(vfd->name, sizeof(vfd->name), "%s", CODA_NAME); + dev->vfd = vfd; + video_set_drvdata(vfd, dev); + + dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev); + if (IS_ERR(dev->alloc_ctx)) { + v4l2_err(&dev->v4l2_dev, "Failed to alloc vb2 context\n"); + goto rel_vdev; + } + + dev->m2m_dev = v4l2_m2m_init(&coda_m2m_ops); + if (IS_ERR(dev->m2m_dev)) { + v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n"); + goto rel_ctx; + } + + ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0); + if (ret) { + v4l2_err(&dev->v4l2_dev, "Failed to register video device\n"); + goto rel_m2m; + } + v4l2_info(&dev->v4l2_dev, "codec registered as /dev/video%d\n", + vfd->num); + + return; + +rel_m2m: + v4l2_m2m_release(dev->m2m_dev); +rel_ctx: + vb2_dma_contig_cleanup_ctx(dev->alloc_ctx); +rel_vdev: + video_device_release(vfd); + + return; +} + +static int coda_firmware_request(struct coda_dev *dev) +{ + char *fw = dev->devtype->firmware; + + dev_dbg(&dev->plat_dev->dev, "requesting firmware '%s' for %s\n", fw, + coda_product_name(dev->devtype->product)); + + return request_firmware_nowait(THIS_MODULE, true, + fw, &dev->plat_dev->dev, GFP_KERNEL, dev, coda_fw_callback); +} + +enum coda_platform { + CODA_IMX27, +}; + +static struct coda_devtype coda_devdata[] = { + [CODA_IMX27] = { + .firmware = "v4l-codadx6-imx27.bin", + .product = CODA_DX6, + .formats = codadx6_formats, + .num_formats = ARRAY_SIZE(codadx6_formats), + }, +}; + +static struct platform_device_id coda_platform_ids[] = { + { .name = "coda-imx27", .driver_data = CODA_IMX27 }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(platform, coda_platform_ids); + +#ifdef CONFIG_OF +static const struct of_device_id coda_dt_ids[] = { + { .compatible = "fsl,imx27-vpu", .data = &coda_platform_ids[CODA_IMX27] }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(platform, coda_dt_ids); +#endif + +static int __devinit coda_probe(struct platform_device *pdev) +{ + const struct of_device_id *of_id = + of_match_device(of_match_ptr(coda_dt_ids), &pdev->dev); + const struct platform_device_id *pdev_id; + struct coda_dev *dev; + struct resource *res; + unsigned int bufsize; + int ret; + + dev = devm_kzalloc(&pdev->dev, sizeof *dev, GFP_KERNEL); + if (!dev) { + dev_err(&pdev->dev, "Not enough memory for %s\n", + CODA_NAME); + return -ENOMEM; + } + + spin_lock_init(&dev->irqlock); + + dev->plat_dev = pdev; + dev->clk_per = devm_clk_get(&pdev->dev, "per"); + if (IS_ERR(dev->clk_per)) { + dev_err(&pdev->dev, "Could not get per clock\n"); + return PTR_ERR(dev->clk_per); + } + + dev->clk_ahb = devm_clk_get(&pdev->dev, "ahb"); + if (IS_ERR(dev->clk_ahb)) { + dev_err(&pdev->dev, "Could not get ahb clock\n"); + return PTR_ERR(dev->clk_ahb); + } + + /* Get memory for physical registers */ + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (res == NULL) { + dev_err(&pdev->dev, "failed to get memory region resource\n"); + return -ENOENT; + } + + if (devm_request_mem_region(&pdev->dev, res->start, + resource_size(res), CODA_NAME) == NULL) { + dev_err(&pdev->dev, "failed to request memory region\n"); + return -ENOENT; + } + dev->regs_base = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); + if (!dev->regs_base) { + dev_err(&pdev->dev, "failed to ioremap address region\n"); + return -ENOENT; + } + + /* IRQ */ + dev->irq = platform_get_irq(pdev, 0); + if (dev->irq < 0) { + dev_err(&pdev->dev, "failed to get irq resource\n"); + return -ENOENT; + } + + if (devm_request_irq(&pdev->dev, dev->irq, coda_irq_handler, + 0, CODA_NAME, dev) < 0) { + dev_err(&pdev->dev, "failed to request irq\n"); + return -ENOENT; + } + + ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); + if (ret) + return ret; + + mutex_init(&dev->dev_mutex); + + pdev_id = of_id ? of_id->data : platform_get_device_id(pdev); + + if (of_id) + dev->devtype = of_id->data; + else if (pdev_id) + dev->devtype = &coda_devdata[pdev_id->driver_data]; + else + return -EINVAL; + + /* allocate auxiliary per-device buffers for the BIT processor */ + switch (dev->devtype->product) { + case CODA_DX6: + bufsize = CODADX6_WORK_BUF_SIZE; + break; + default: + bufsize = CODA7_WORK_BUF_SIZE; + } + dev->workbuf.vaddr = dma_alloc_coherent(&pdev->dev, bufsize, + &dev->workbuf.paddr, + GFP_KERNEL); + if (!dev->workbuf.vaddr) { + dev_err(&pdev->dev, "failed to allocate work buffer\n"); + return -ENOMEM; + } + + platform_set_drvdata(pdev, dev); + + return coda_firmware_request(dev); +} + +static int coda_remove(struct platform_device *pdev) +{ + struct coda_dev *dev = platform_get_drvdata(pdev); + unsigned int bufsize; + + switch (dev->devtype->product) { + case CODA_DX6: + bufsize = CODADX6_WORK_BUF_SIZE; + break; + default: + bufsize = CODA7_WORK_BUF_SIZE; + } + + video_unregister_device(dev->vfd); + v4l2_m2m_release(dev->m2m_dev); + vb2_dma_contig_cleanup_ctx(dev->alloc_ctx); + video_device_release(dev->vfd); + if (dev->codebuf.vaddr) + dma_free_coherent(&pdev->dev, dev->codebuf_size, + &dev->codebuf.vaddr, dev->codebuf.paddr); + dma_free_coherent(&pdev->dev, bufsize, &dev->workbuf.vaddr, + dev->workbuf.paddr); + return 0; +} + +static struct platform_driver coda_driver = { + .probe = coda_probe, + .remove = __devexit_p(coda_remove), + .driver = { + .name = CODA_NAME, + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(coda_dt_ids), + }, + .id_table = coda_platform_ids, +}; + +module_platform_driver(coda_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Javier Martin <javier.martin@vista-silicon.com>"); +MODULE_DESCRIPTION("Coda multi-standard codec V4L2 driver"); diff --git a/drivers/media/video/coda.h b/drivers/media/video/coda.h new file mode 100644 index 0000000..454d5f0 --- /dev/null +++ b/drivers/media/video/coda.h @@ -0,0 +1,214 @@ +/* + * linux/drivers/media/video/coda/coda_regs.h + * + * Copyright (C) 2012 Vista Silicon SL + * Javier Martin <javier.martin@vista-silicon.com> + * Xavier Duret + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef _REGS_CODA_H_ +#define _REGS_CODA_H_ + +/* HW registers */ +#define CODA_REG_BIT_CODE_RUN 0x000 +#define CODA_REG_RUN_ENABLE (1 << 0) +#define CODA_REG_BIT_CODE_DOWN 0x004 +#define CODA_DOWN_ADDRESS_SET(x) (((x) & 0xffff) << 16) +#define CODA_DOWN_DATA_SET(x) ((x) & 0xffff) +#define CODA_REG_BIT_HOST_IN_REQ 0x008 +#define CODA_REG_BIT_INT_CLEAR 0x00c +#define CODA_REG_BIT_INT_CLEAR_SET 0x1 +#define CODA_REG_BIT_INT_STATUS 0x010 +#define CODA_REG_BIT_CODE_RESET 0x014 +#define CODA_REG_RESET_ENABLE (1 << 0) +#define CODA_REG_BIT_CUR_PC 0x018 + +/* Static SW registers */ +#define CODA_REG_BIT_CODE_BUF_ADDR 0x100 +#define CODA_REG_BIT_WORK_BUF_ADDR 0x104 +#define CODA_REG_BIT_PARA_BUF_ADDR 0x108 +#define CODA_REG_BIT_STREAM_CTRL 0x10c +#define CODA7_STREAM_BUF_PIC_RESET (1 << 4) +#define CODADX6_STREAM_BUF_PIC_RESET (1 << 3) +#define CODA7_STREAM_BUF_PIC_FLUSH (1 << 3) +#define CODADX6_STREAM_BUF_PIC_FLUSH (1 << 2) +#define CODA_STREAM_CHKDIS_OFFSET (1 << 1) +#define CODA_STREAM_ENDIAN_SELECT (1 << 0) +#define CODA_REG_BIT_FRAME_MEM_CTRL 0x110 +#define CODA_IMAGE_ENDIAN_SELECT (1 << 0) +#define CODA_REG_BIT_RD_PTR(x) (0x120 + 8 * (x)) +#define CODA_REG_BIT_WR_PTR(x) (0x124 + 8 * (x)) +#define CODA_REG_BIT_SEARCH_RAM_BASE_ADDR 0x140 +#define CODA_REG_BIT_BUSY 0x160 +#define CODA_REG_BIT_BUSY_FLAG 1 +#define CODA_REG_BIT_RUN_COMMAND 0x164 +#define CODA_COMMAND_SEQ_INIT 1 +#define CODA_COMMAND_SEQ_END 2 +#define CODA_COMMAND_PIC_RUN 3 +#define CODA_COMMAND_SET_FRAME_BUF 4 +#define CODA_COMMAND_ENCODE_HEADER 5 +#define CODA_COMMAND_ENC_PARA_SET 6 +#define CODA_COMMAND_DEC_PARA_SET 7 +#define CODA_COMMAND_DEC_BUF_FLUSH 8 +#define CODA_COMMAND_RC_CHANGE_PARAMETER 9 +#define CODA_COMMAND_FIRMWARE_GET 0xf +#define CODA_REG_BIT_RUN_INDEX 0x168 +#define CODA_INDEX_SET(x) ((x) & 0x3) +#define CODA_REG_BIT_RUN_COD_STD 0x16c +#define CODADX6_MODE_DECODE_MP4 0 +#define CODADX6_MODE_ENCODE_MP4 1 +#define CODADX6_MODE_DECODE_H264 2 +#define CODADX6_MODE_ENCODE_H264 3 +#define CODA7_MODE_DECODE_H264 0 +#define CODA7_MODE_DECODE_VC1 1 +#define CODA7_MODE_DECODE_MP2 2 +#define CODA7_MODE_DECODE_MP4 3 +#define CODA7_MODE_DECODE_DV3 3 +#define CODA7_MODE_DECODE_RV 4 +#define CODA7_MODE_DECODE_MJPG 5 +#define CODA7_MODE_ENCODE_H264 8 +#define CODA7_MODE_ENCODE_MP4 11 +#define CODA7_MODE_ENCODE_MJPG 13 +#define CODA_MODE_INVALID 0xffff +#define CODA_REG_BIT_INT_ENABLE 0x170 +#define CODA_INT_INTERRUPT_ENABLE (1 << 3) + +/* + * Commands' mailbox: + * registers with offsets in the range 0x180-0x1d0 + * have different meaning depending on the command being + * issued. + */ + +/* Encoder Sequence Initialization */ +#define CODA_CMD_ENC_SEQ_BB_START 0x180 +#define CODA_CMD_ENC_SEQ_BB_SIZE 0x184 +#define CODA_CMD_ENC_SEQ_OPTION 0x188 +#define CODA_OPTION_GAMMA_OFFSET 7 +#define CODA_OPTION_GAMMA_MASK 0x01 +#define CODA_OPTION_LIMITQP_OFFSET 6 +#define CODA_OPTION_LIMITQP_MASK 0x01 +#define CODA_OPTION_RCINTRAQP_OFFSET 5 +#define CODA_OPTION_RCINTRAQP_MASK 0x01 +#define CODA_OPTION_FMO_OFFSET 4 +#define CODA_OPTION_FMO_MASK 0x01 +#define CODA_OPTION_SLICEREPORT_OFFSET 1 +#define CODA_OPTION_SLICEREPORT_MASK 0x01 +#define CODA_CMD_ENC_SEQ_COD_STD 0x18c +#define CODA_STD_MPEG4 0 +#define CODA_STD_H263 1 +#define CODA_STD_H264 2 +#define CODA_STD_MJPG 3 +#define CODA_CMD_ENC_SEQ_SRC_SIZE 0x190 +#define CODA7_PICWIDTH_OFFSET 16 +#define CODA7_PICWIDTH_MASK 0xffff +#define CODADX6_PICWIDTH_OFFSET 10 +#define CODADX6_PICWIDTH_MASK 0x3ff +#define CODA_PICHEIGHT_OFFSET 0 +#define CODA_PICHEIGHT_MASK 0x3ff +#define CODA_CMD_ENC_SEQ_SRC_F_RATE 0x194 +#define CODA_CMD_ENC_SEQ_MP4_PARA 0x198 +#define CODA_MP4PARAM_VERID_OFFSET 6 +#define CODA_MP4PARAM_VERID_MASK 0x01 +#define CODA_MP4PARAM_INTRADCVLCTHR_OFFSET 2 +#define CODA_MP4PARAM_INTRADCVLCTHR_MASK 0x07 +#define CODA_MP4PARAM_REVERSIBLEVLCENABLE_OFFSET 1 +#define CODA_MP4PARAM_REVERSIBLEVLCENABLE_MASK 0x01 +#define CODA_MP4PARAM_DATAPARTITIONENABLE_OFFSET 0 +#define CODA_MP4PARAM_DATAPARTITIONENABLE_MASK 0x01 +#define CODA_CMD_ENC_SEQ_263_PARA 0x19c +#define CODA_263PARAM_ANNEXJENABLE_OFFSET 2 +#define CODA_263PARAM_ANNEXJENABLE_MASK 0x01 +#define CODA_263PARAM_ANNEXKENABLE_OFFSET 1 +#define CODA_263PARAM_ANNEXKENABLE_MASK 0x01 +#define CODA_263PARAM_ANNEXTENABLE_OFFSET 0 +#define CODA_263PARAM_ANNEXTENABLE_MASK 0x01 +#define CODA_CMD_ENC_SEQ_264_PARA 0x1a0 +#define CODA_264PARAM_DEBLKFILTEROFFSETBETA_OFFSET 12 +#define CODA_264PARAM_DEBLKFILTEROFFSETBETA_MASK 0x0f +#define CODA_264PARAM_DEBLKFILTEROFFSETALPHA_OFFSET 8 +#define CODA_264PARAM_DEBLKFILTEROFFSETALPHA_MASK 0x0f +#define CODA_264PARAM_DISABLEDEBLK_OFFSET 6 +#define CODA_264PARAM_DISABLEDEBLK_MASK 0x01 +#define CODA_264PARAM_CONSTRAINEDINTRAPREDFLAG_OFFSET 5 +#define CODA_264PARAM_CONSTRAINEDINTRAPREDFLAG_MASK 0x01 +#define CODA_264PARAM_CHROMAQPOFFSET_OFFSET 0 +#define CODA_264PARAM_CHROMAQPOFFSET_MASK 0x1f +#define CODA_CMD_ENC_SEQ_SLICE_MODE 0x1a4 +#define CODA_SLICING_SIZE_OFFSET 2 +#define CODA_SLICING_SIZE_MASK 0x3fffffff +#define CODA_SLICING_UNIT_OFFSET 1 +#define CODA_SLICING_UNIT_MASK 0x01 +#define CODA_SLICING_MODE_OFFSET 0 +#define CODA_SLICING_MODE_MASK 0x01 +#define CODA_CMD_ENC_SEQ_GOP_SIZE 0x1a8 +#define CODA_GOP_SIZE_OFFSET 0 +#define CODA_GOP_SIZE_MASK 0x3f +#define CODA_CMD_ENC_SEQ_RC_PARA 0x1ac +#define CODA_RATECONTROL_AUTOSKIP_OFFSET 31 +#define CODA_RATECONTROL_AUTOSKIP_MASK 0x01 +#define CODA_RATECONTROL_INITIALDELAY_OFFSET 16 +#define CODA_RATECONTROL_INITIALDELAY_MASK 0x7f +#define CODA_RATECONTROL_BITRATE_OFFSET 1 +#define CODA_RATECONTROL_BITRATE_MASK 0x7f +#define CODA_RATECONTROL_ENABLE_OFFSET 0 +#define CODA_RATECONTROL_ENABLE_MASK 0x01 +#define CODA_CMD_ENC_SEQ_RC_BUF_SIZE 0x1b0 +#define CODA_CMD_ENC_SEQ_INTRA_REFRESH 0x1b4 +#define CODA_CMD_ENC_SEQ_FMO 0x1b8 +#define CODA_FMOPARAM_TYPE_OFFSET 4 +#define CODA_FMOPARAM_TYPE_MASK 1 +#define CODA_FMOPARAM_SLICENUM_OFFSET 0 +#define CODA_FMOPARAM_SLICENUM_MASK 0x0f +#define CODA_CMD_ENC_SEQ_RC_QP_MAX 0x1c8 +#define CODA_QPMAX_OFFSET 0 +#define CODA_QPMAX_MASK 0x3f +#define CODA_CMD_ENC_SEQ_RC_GAMMA 0x1cc +#define CODA_GAMMA_OFFSET 0 +#define CODA_GAMMA_MASK 0xffff +#define CODA_RET_ENC_SEQ_SUCCESS 0x1c0 + +/* Encoder Picture Run */ +#define CODA_CMD_ENC_PIC_SRC_ADDR_Y 0x180 +#define CODA_CMD_ENC_PIC_SRC_ADDR_CB 0x184 +#define CODA_CMD_ENC_PIC_SRC_ADDR_CR 0x188 +#define CODA_CMD_ENC_PIC_QS 0x18c +#define CODA_CMD_ENC_PIC_ROT_MODE 0x190 +#define CODA_CMD_ENC_PIC_OPTION 0x194 +#define CODA_CMD_ENC_PIC_BB_START 0x198 +#define CODA_CMD_ENC_PIC_BB_SIZE 0x19c +#define CODA_RET_ENC_PIC_TYPE 0x1c4 +#define CODA_RET_ENC_PIC_SLICE_NUM 0x1cc +#define CODA_RET_ENC_PIC_FLAG 0x1d0 + +/* Set Frame Buffer */ +#define CODA_CMD_SET_FRAME_BUF_NUM 0x180 +#define CODA_CMD_SET_FRAME_BUF_STRIDE 0x184 + +/* Encoder Header */ +#define CODA_CMD_ENC_HEADER_CODE 0x180 +#define CODA_GAMMA_OFFSET 0 +#define CODA_HEADER_H264_SPS 0 +#define CODA_HEADER_H264_PPS 1 +#define CODA_HEADER_MP4V_VOL 0 +#define CODA_HEADER_MP4V_VOS 1 +#define CODA_HEADER_MP4V_VIS 2 +#define CODA_CMD_ENC_HEADER_BB_START 0x184 +#define CODA_CMD_ENC_HEADER_BB_SIZE 0x188 + +/* Get Version */ +#define CODA_CMD_FIRMWARE_VERNUM 0x1c0 +#define CODA_FIRMWARE_PRODUCT(x) (((x) >> 16) & 0xffff) +#define CODA_FIRMWARE_MAJOR(x) (((x) >> 12) & 0x0f) +#define CODA_FIRMWARE_MINOR(x) (((x) >> 8) & 0x0f) +#define CODA_FIRMWARE_RELEASE(x) ((x) & 0xff) +#define CODA_FIRMWARE_VERNUM(product, major, minor, release) \ + ((product) << 16 | ((major) << 12) | \ + ((minor) << 8) | (release)) + +#endif

[v3] media: coda: Add driver for Coda video codec.

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