--- /dev/null
+/*
+ * linux/drivers/media/platform/s5p-mfc/s5p_mfc_dec.c
+ *
+ * Copyright (C) 2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ * Kamil Debski, <k.debski@samsung.com>
+ *
+ * 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/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/version.h>
+#include <linux/videodev2.h>
+#include <linux/workqueue.h>
+#include <media/v4l2-ctrls.h>
+#include <media/videobuf2-core.h>
+#include "regs-mfc.h"
+#include "s5p_mfc_common.h"
+#include "s5p_mfc_debug.h"
+#include "s5p_mfc_dec.h"
+#include "s5p_mfc_intr.h"
+#include "s5p_mfc_opr.h"
+#include "s5p_mfc_pm.h"
+#include "s5p_mfc_shm.h"
+
+static struct s5p_mfc_fmt formats[] = {
+ {
+ .name = "4:2:0 2 Planes 64x32 Tiles",
+ .fourcc = V4L2_PIX_FMT_NV12MT,
+ .codec_mode = S5P_FIMV_CODEC_NONE,
+ .type = MFC_FMT_RAW,
+ .num_planes = 2,
+ },
+ {
+ .name = "4:2:0 2 Planes",
+ .fourcc = V4L2_PIX_FMT_NV12M,
+ .codec_mode = S5P_FIMV_CODEC_NONE,
+ .type = MFC_FMT_RAW,
+ .num_planes = 2,
+ },
+ {
+ .name = "H264 Encoded Stream",
+ .fourcc = V4L2_PIX_FMT_H264,
+ .codec_mode = S5P_FIMV_CODEC_H264_DEC,
+ .type = MFC_FMT_DEC,
+ .num_planes = 1,
+ },
+ {
+ .name = "H263 Encoded Stream",
+ .fourcc = V4L2_PIX_FMT_H263,
+ .codec_mode = S5P_FIMV_CODEC_H263_DEC,
+ .type = MFC_FMT_DEC,
+ .num_planes = 1,
+ },
+ {
+ .name = "MPEG1 Encoded Stream",
+ .fourcc = V4L2_PIX_FMT_MPEG1,
+ .codec_mode = S5P_FIMV_CODEC_MPEG2_DEC,
+ .type = MFC_FMT_DEC,
+ .num_planes = 1,
+ },
+ {
+ .name = "MPEG2 Encoded Stream",
+ .fourcc = V4L2_PIX_FMT_MPEG2,
+ .codec_mode = S5P_FIMV_CODEC_MPEG2_DEC,
+ .type = MFC_FMT_DEC,
+ .num_planes = 1,
+ },
+ {
+ .name = "MPEG4 Encoded Stream",
+ .fourcc = V4L2_PIX_FMT_MPEG4,
+ .codec_mode = S5P_FIMV_CODEC_MPEG4_DEC,
+ .type = MFC_FMT_DEC,
+ .num_planes = 1,
+ },
+ {
+ .name = "XviD Encoded Stream",
+ .fourcc = V4L2_PIX_FMT_XVID,
+ .codec_mode = S5P_FIMV_CODEC_MPEG4_DEC,
+ .type = MFC_FMT_DEC,
+ .num_planes = 1,
+ },
+ {
+ .name = "VC1 Encoded Stream",
+ .fourcc = V4L2_PIX_FMT_VC1_ANNEX_G,
+ .codec_mode = S5P_FIMV_CODEC_VC1_DEC,
+ .type = MFC_FMT_DEC,
+ .num_planes = 1,
+ },
+ {
+ .name = "VC1 RCV Encoded Stream",
+ .fourcc = V4L2_PIX_FMT_VC1_ANNEX_L,
+ .codec_mode = S5P_FIMV_CODEC_VC1RCV_DEC,
+ .type = MFC_FMT_DEC,
+ .num_planes = 1,
+ },
+};
+
+#define NUM_FORMATS ARRAY_SIZE(formats)
+
+/* Find selected format description */
+static struct s5p_mfc_fmt *find_format(struct v4l2_format *f, unsigned int t)
+{
+ unsigned int i;
+
+ for (i = 0; i < NUM_FORMATS; i++) {
+ if (formats[i].fourcc == f->fmt.pix_mp.pixelformat &&
+ formats[i].type == t)
+ return &formats[i];
+ }
+ return NULL;
+}
+
+static struct mfc_control controls[] = {
+ {
+ .id = V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "H264 Display Delay",
+ .minimum = 0,
+ .maximum = 16383,
+ .step = 1,
+ .default_value = 0,
+ },
+ {
+ .id = V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "H264 Display Delay Enable",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 0,
+ },
+ {
+ .id = V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Mpeg4 Loop Filter Enable",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 0,
+ },
+ {
+ .id = V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE,
+ .type = V4L2_CTRL_TYPE_BOOLEAN,
+ .name = "Slice Interface Enable",
+ .minimum = 0,
+ .maximum = 1,
+ .step = 1,
+ .default_value = 0,
+ },
+ {
+ .id = V4L2_CID_MIN_BUFFERS_FOR_CAPTURE,
+ .type = V4L2_CTRL_TYPE_INTEGER,
+ .name = "Minimum number of cap bufs",
+ .minimum = 1,
+ .maximum = 32,
+ .step = 1,
+ .default_value = 1,
+ .is_volatile = 1,
+ },
+};
+
+#define NUM_CTRLS ARRAY_SIZE(controls)
+
+/* Check whether a context should be run on hardware */
+static int s5p_mfc_ctx_ready(struct s5p_mfc_ctx *ctx)
+{
+ /* Context is to parse header */
+ if (ctx->src_queue_cnt >= 1 && ctx->state == MFCINST_GOT_INST)
+ return 1;
+ /* Context is to decode a frame */
+ if (ctx->src_queue_cnt >= 1 &&
+ ctx->state == MFCINST_RUNNING &&
+ ctx->dst_queue_cnt >= ctx->dpb_count)
+ return 1;
+ /* Context is to return last frame */
+ if (ctx->state == MFCINST_FINISHING &&
+ ctx->dst_queue_cnt >= ctx->dpb_count)
+ return 1;
+ /* Context is to set buffers */
+ if (ctx->src_queue_cnt >= 1 &&
+ ctx->state == MFCINST_HEAD_PARSED &&
+ ctx->capture_state == QUEUE_BUFS_MMAPED)
+ return 1;
+ /* Resolution change */
+ if ((ctx->state == MFCINST_RES_CHANGE_INIT ||
+ ctx->state == MFCINST_RES_CHANGE_FLUSH) &&
+ ctx->dst_queue_cnt >= ctx->dpb_count)
+ return 1;
+ if (ctx->state == MFCINST_RES_CHANGE_END &&
+ ctx->src_queue_cnt >= 1)
+ return 1;
+ mfc_debug(2, "ctx is not ready\n");
+ return 0;
+}
+
+static struct s5p_mfc_codec_ops decoder_codec_ops = {
+ .pre_seq_start = NULL,
+ .post_seq_start = NULL,
+ .pre_frame_start = NULL,
+ .post_frame_start = NULL,
+};
+
+/* Query capabilities of the device */
+static int vidioc_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ struct s5p_mfc_dev *dev = video_drvdata(file);
+
+ strncpy(cap->driver, dev->plat_dev->name, sizeof(cap->driver) - 1);
+ strncpy(cap->card, dev->plat_dev->name, sizeof(cap->card) - 1);
+ cap->bus_info[0] = 0;
+ cap->version = KERNEL_VERSION(1, 0, 0);
+ /*
+ * This is only a mem-to-mem video device. The capture and output
+ * device capability flags are left only for backward compatibility
+ * and are scheduled for removal.
+ */
+ cap->capabilities = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_STREAMING |
+ V4L2_CAP_VIDEO_CAPTURE_MPLANE |
+ V4L2_CAP_VIDEO_OUTPUT_MPLANE;
+ return 0;
+}
+
+/* Enumerate format */
+static int vidioc_enum_fmt(struct v4l2_fmtdesc *f, bool mplane, bool out)
+{
+ struct s5p_mfc_fmt *fmt;
+ int i, j = 0;
+
+ for (i = 0; i < ARRAY_SIZE(formats); ++i) {
+ if (mplane && formats[i].num_planes == 1)
+ continue;
+ else if (!mplane && formats[i].num_planes > 1)
+ continue;
+ if (out && formats[i].type != MFC_FMT_DEC)
+ continue;
+ else if (!out && formats[i].type != MFC_FMT_RAW)
+ continue;
+
+ if (j == f->index)
+ break;
+ ++j;
+ }
+ if (i == ARRAY_SIZE(formats))
+ return -EINVAL;
+ fmt = &formats[i];
+ strlcpy(f->description, fmt->name, sizeof(f->description));
+ f->pixelformat = fmt->fourcc;
+ return 0;
+}
+
+static int vidioc_enum_fmt_vid_cap(struct file *file, void *pirv,
+ struct v4l2_fmtdesc *f)
+{
+ return vidioc_enum_fmt(f, false, false);
+}
+
+static int vidioc_enum_fmt_vid_cap_mplane(struct file *file, void *pirv,
+ struct v4l2_fmtdesc *f)
+{
+ return vidioc_enum_fmt(f, true, false);
+}
+
+static int vidioc_enum_fmt_vid_out(struct file *file, void *prov,
+ struct v4l2_fmtdesc *f)
+{
+ return vidioc_enum_fmt(f, false, true);
+}
+
+static int vidioc_enum_fmt_vid_out_mplane(struct file *file, void *prov,
+ struct v4l2_fmtdesc *f)
+{
+ return vidioc_enum_fmt(f, true, true);
+}
+
+/* Get format */
+static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
+{
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
+ struct v4l2_pix_format_mplane *pix_mp;
+
+ mfc_debug_enter();
+ pix_mp = &f->fmt.pix_mp;
+ if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
+ (ctx->state == MFCINST_GOT_INST || ctx->state ==
+ MFCINST_RES_CHANGE_END)) {
+ /* If the MFC is parsing the header,
+ * so wait until it is finished */
+ s5p_mfc_clean_ctx_int_flags(ctx);
+ s5p_mfc_wait_for_done_ctx(ctx, S5P_FIMV_R2H_CMD_SEQ_DONE_RET,
+ 0);
+ }
+ if (f->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE &&
+ ctx->state >= MFCINST_HEAD_PARSED &&
+ ctx->state < MFCINST_ABORT) {
+ /* This is run on CAPTURE (decode output) */
+ /* Width and height are set to the dimensions
+ of the movie, the buffer is bigger and
+ further processing stages should crop to this
+ rectangle. */
+ pix_mp->width = ctx->buf_width;
+ pix_mp->height = ctx->buf_height;
+ pix_mp->field = V4L2_FIELD_NONE;
+ pix_mp->num_planes = 2;
+ /* Set pixelformat to the format in which MFC
+ outputs the decoded frame */
+ pix_mp->pixelformat = V4L2_PIX_FMT_NV12MT;
+ pix_mp->plane_fmt[0].bytesperline = ctx->buf_width;
+ pix_mp->plane_fmt[0].sizeimage = ctx->luma_size;
+ pix_mp->plane_fmt[1].bytesperline = ctx->buf_width;
+ pix_mp->plane_fmt[1].sizeimage = ctx->chroma_size;
+ } else if (f->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ /* This is run on OUTPUT
+ The buffer contains compressed image
+ so width and height have no meaning */
+ pix_mp->width = 0;
+ pix_mp->height = 0;
+ pix_mp->field = V4L2_FIELD_NONE;
+ pix_mp->plane_fmt[0].bytesperline = ctx->dec_src_buf_size;
+ pix_mp->plane_fmt[0].sizeimage = ctx->dec_src_buf_size;
+ pix_mp->pixelformat = ctx->src_fmt->fourcc;
+ pix_mp->num_planes = ctx->src_fmt->num_planes;
+ } else {
+ mfc_err("Format could not be read\n");
+ mfc_debug(2, "%s-- with error\n", __func__);
+ return -EINVAL;
+ }
+ mfc_debug_leave();
+ return 0;
+}
+
+/* Try format */
+static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
+{
+ struct s5p_mfc_fmt *fmt;
+
+ if (f->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ mfc_err("This node supports decoding only\n");
+ return -EINVAL;
+ }
+ fmt = find_format(f, MFC_FMT_DEC);
+ if (!fmt) {
+ mfc_err("Unsupported format\n");
+ return -EINVAL;
+ }
+ if (fmt->type != MFC_FMT_DEC) {
+ mfc_err("\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+/* Set format */
+static int vidioc_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
+{
+ struct s5p_mfc_dev *dev = video_drvdata(file);
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
+ int ret = 0;
+ struct s5p_mfc_fmt *fmt;
+ struct v4l2_pix_format_mplane *pix_mp;
+
+ mfc_debug_enter();
+ ret = vidioc_try_fmt(file, priv, f);
+ pix_mp = &f->fmt.pix_mp;
+ if (ret)
+ return ret;
+ if (ctx->vq_src.streaming || ctx->vq_dst.streaming) {
+ v4l2_err(&dev->v4l2_dev, "%s queue busy\n", __func__);
+ ret = -EBUSY;
+ goto out;
+ }
+ fmt = find_format(f, MFC_FMT_DEC);
+ if (!fmt || fmt->codec_mode == S5P_FIMV_CODEC_NONE) {
+ mfc_err("Unknown codec\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ if (fmt->type != MFC_FMT_DEC) {
+ mfc_err("Wrong format selected, you should choose "
+ "format for decoding\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ ctx->src_fmt = fmt;
+ ctx->codec_mode = fmt->codec_mode;
+ mfc_debug(2, "The codec number is: %d\n", ctx->codec_mode);
+ pix_mp->height = 0;
+ pix_mp->width = 0;
+ if (pix_mp->plane_fmt[0].sizeimage)
+ ctx->dec_src_buf_size = pix_mp->plane_fmt[0].sizeimage;
+ else
+ pix_mp->plane_fmt[0].sizeimage = ctx->dec_src_buf_size =
+ DEF_CPB_SIZE;
+ pix_mp->plane_fmt[0].bytesperline = 0;
+ ctx->state = MFCINST_INIT;
+out:
+ mfc_debug_leave();
+ return ret;
+}
+
+/* Reqeust buffers */
+static int vidioc_reqbufs(struct file *file, void *priv,
+ struct v4l2_requestbuffers *reqbufs)
+{
+ struct s5p_mfc_dev *dev = video_drvdata(file);
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
+ int ret = 0;
+ unsigned long flags;
+
+ if (reqbufs->memory != V4L2_MEMORY_MMAP) {
+ mfc_err("Only V4L2_MEMORY_MAP is supported\n");
+ return -EINVAL;
+ }
+ if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ /* Can only request buffers after an instance has been opened.*/
+ if (ctx->state == MFCINST_INIT) {
+ ctx->src_bufs_cnt = 0;
+ if (reqbufs->count == 0) {
+ mfc_debug(2, "Freeing buffers\n");
+ s5p_mfc_clock_on();
+ ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
+ s5p_mfc_clock_off();
+ return ret;
+ }
+ /* Decoding */
+ if (ctx->output_state != QUEUE_FREE) {
+ mfc_err("Bufs have already been requested\n");
+ return -EINVAL;
+ }
+ s5p_mfc_clock_on();
+ ret = vb2_reqbufs(&ctx->vq_src, reqbufs);
+ s5p_mfc_clock_off();
+ if (ret) {
+ mfc_err("vb2_reqbufs on output failed\n");
+ return ret;
+ }
+ mfc_debug(2, "vb2_reqbufs: %d\n", ret);
+ ctx->output_state = QUEUE_BUFS_REQUESTED;
+ }
+ } else if (reqbufs->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+ ctx->dst_bufs_cnt = 0;
+ if (reqbufs->count == 0) {
+ mfc_debug(2, "Freeing buffers\n");
+ s5p_mfc_clock_on();
+ ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
+ s5p_mfc_clock_off();
+ return ret;
+ }
+ if (ctx->capture_state != QUEUE_FREE) {
+ mfc_err("Bufs have already been requested\n");
+ return -EINVAL;
+ }
+ ctx->capture_state = QUEUE_BUFS_REQUESTED;
+ s5p_mfc_clock_on();
+ ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
+ s5p_mfc_clock_off();
+ if (ret) {
+ mfc_err("vb2_reqbufs on capture failed\n");
+ return ret;
+ }
+ if (reqbufs->count < ctx->dpb_count) {
+ mfc_err("Not enough buffers allocated\n");
+ reqbufs->count = 0;
+ s5p_mfc_clock_on();
+ ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
+ s5p_mfc_clock_off();
+ return -ENOMEM;
+ }
+ ctx->total_dpb_count = reqbufs->count;
+ ret = s5p_mfc_alloc_codec_buffers(ctx);
+ if (ret) {
+ mfc_err("Failed to allocate decoding buffers\n");
+ reqbufs->count = 0;
+ s5p_mfc_clock_on();
+ ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
+ s5p_mfc_clock_off();
+ return -ENOMEM;
+ }
+ if (ctx->dst_bufs_cnt == ctx->total_dpb_count) {
+ ctx->capture_state = QUEUE_BUFS_MMAPED;
+ } else {
+ mfc_err("Not all buffers passed to buf_init\n");
+ reqbufs->count = 0;
+ s5p_mfc_clock_on();
+ ret = vb2_reqbufs(&ctx->vq_dst, reqbufs);
+ s5p_mfc_release_codec_buffers(ctx);
+ s5p_mfc_clock_off();
+ return -ENOMEM;
+ }
+ if (s5p_mfc_ctx_ready(ctx)) {
+ spin_lock_irqsave(&dev->condlock, flags);
+ set_bit(ctx->num, &dev->ctx_work_bits);
+ spin_unlock_irqrestore(&dev->condlock, flags);
+ }
+ s5p_mfc_try_run(dev);
+ s5p_mfc_wait_for_done_ctx(ctx,
+ S5P_FIMV_R2H_CMD_INIT_BUFFERS_RET, 0);
+ }
+ return ret;
+}
+
+/* Query buffer */
+static int vidioc_querybuf(struct file *file, void *priv,
+ struct v4l2_buffer *buf)
+{
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
+ int ret;
+ int i;
+
+ if (buf->memory != V4L2_MEMORY_MMAP) {
+ mfc_err("Only mmaped buffers can be used\n");
+ return -EINVAL;
+ }
+ mfc_debug(2, "State: %d, buf->type: %d\n", ctx->state, buf->type);
+ if (ctx->state == MFCINST_INIT &&
+ buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ ret = vb2_querybuf(&ctx->vq_src, buf);
+ } else if (ctx->state == MFCINST_RUNNING &&
+ buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+ ret = vb2_querybuf(&ctx->vq_dst, buf);
+ for (i = 0; i < buf->length; i++)
+ buf->m.planes[i].m.mem_offset += DST_QUEUE_OFF_BASE;
+ } else {
+ mfc_err("vidioc_querybuf called in an inappropriate state\n");
+ ret = -EINVAL;
+ }
+ mfc_debug_leave();
+ return ret;
+}
+
+/* Queue a buffer */
+static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
+
+ if (ctx->state == MFCINST_ERROR) {
+ mfc_err("Call on QBUF after unrecoverable error\n");
+ return -EIO;
+ }
+ if (buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+ return vb2_qbuf(&ctx->vq_src, buf);
+ else if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ return vb2_qbuf(&ctx->vq_dst, buf);
+ return -EINVAL;
+}
+
+/* Dequeue a buffer */
+static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
+
+ if (ctx->state == MFCINST_ERROR) {
+ mfc_err("Call on DQBUF after unrecoverable error\n");
+ return -EIO;
+ }
+ if (buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+ return vb2_dqbuf(&ctx->vq_src, buf, file->f_flags & O_NONBLOCK);
+ else if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ return vb2_dqbuf(&ctx->vq_dst, buf, file->f_flags & O_NONBLOCK);
+ return -EINVAL;
+}
+
+/* Stream on */
+static int vidioc_streamon(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
+ struct s5p_mfc_dev *dev = ctx->dev;
+ unsigned long flags;
+ int ret = -EINVAL;
+
+ mfc_debug_enter();
+ if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+
+ if (ctx->state == MFCINST_INIT) {
+ ctx->dst_bufs_cnt = 0;
+ ctx->src_bufs_cnt = 0;
+ ctx->capture_state = QUEUE_FREE;
+ ctx->output_state = QUEUE_FREE;
+ s5p_mfc_alloc_instance_buffer(ctx);
+ s5p_mfc_alloc_dec_temp_buffers(ctx);
+ spin_lock_irqsave(&dev->condlock, flags);
+ set_bit(ctx->num, &dev->ctx_work_bits);
+ spin_unlock_irqrestore(&dev->condlock, flags);
+ s5p_mfc_clean_ctx_int_flags(ctx);
+ s5p_mfc_try_run(dev);
+
+ if (s5p_mfc_wait_for_done_ctx(ctx,
+ S5P_FIMV_R2H_CMD_OPEN_INSTANCE_RET, 0)) {
+ /* Error or timeout */
+ mfc_err("Error getting instance from hardware\n");
+ s5p_mfc_release_instance_buffer(ctx);
+ s5p_mfc_release_dec_desc_buffer(ctx);
+ return -EIO;
+ }
+ mfc_debug(2, "Got instance number: %d\n", ctx->inst_no);
+ }
+ ret = vb2_streamon(&ctx->vq_src, type);
+ }
+ else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ ret = vb2_streamon(&ctx->vq_dst, type);
+ mfc_debug_leave();
+ return ret;
+}
+
+/* Stream off, which equals to a pause */
+static int vidioc_streamoff(struct file *file, void *priv,
+ enum v4l2_buf_type type)
+{
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
+
+ if (type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE)
+ return vb2_streamoff(&ctx->vq_src, type);
+ else if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
+ return vb2_streamoff(&ctx->vq_dst, type);
+ return -EINVAL;
+}
+
+/* Set controls - v4l2 control framework */
+static int s5p_mfc_dec_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct s5p_mfc_ctx *ctx = ctrl_to_ctx(ctrl);
+
+ switch (ctrl->id) {
+ case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY:
+ ctx->display_delay = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE:
+ ctx->display_delay_enable = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER:
+ ctx->loop_filter_mpeg4 = ctrl->val;
+ break;
+ case V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE:
+ ctx->slice_interface = ctrl->val;
+ break;
+ default:
+ mfc_err("Invalid control 0x%08x\n", ctrl->id);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int s5p_mfc_dec_g_v_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct s5p_mfc_ctx *ctx = ctrl_to_ctx(ctrl);
+ struct s5p_mfc_dev *dev = ctx->dev;
+
+ switch (ctrl->id) {
+ case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
+ if (ctx->state >= MFCINST_HEAD_PARSED &&
+ ctx->state < MFCINST_ABORT) {
+ ctrl->val = ctx->dpb_count;
+ break;
+ } else if (ctx->state != MFCINST_INIT) {
+ v4l2_err(&dev->v4l2_dev, "Decoding not initialised\n");
+ return -EINVAL;
+ }
+ /* Should wait for the header to be parsed */
+ s5p_mfc_clean_ctx_int_flags(ctx);
+ s5p_mfc_wait_for_done_ctx(ctx,
+ S5P_FIMV_R2H_CMD_SEQ_DONE_RET, 0);
+ if (ctx->state >= MFCINST_HEAD_PARSED &&
+ ctx->state < MFCINST_ABORT) {
+ ctrl->val = ctx->dpb_count;
+ } else {
+ v4l2_err(&dev->v4l2_dev, "Decoding not initialised\n");
+ return -EINVAL;
+ }
+ break;
+ }
+ return 0;
+}
+
+
+static const struct v4l2_ctrl_ops s5p_mfc_dec_ctrl_ops = {
+ .s_ctrl = s5p_mfc_dec_s_ctrl,
+ .g_volatile_ctrl = s5p_mfc_dec_g_v_ctrl,
+};
+
+/* Get cropping information */
+static int vidioc_g_crop(struct file *file, void *priv,
+ struct v4l2_crop *cr)
+{
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
+ u32 left, right, top, bottom;
+
+ if (ctx->state != MFCINST_HEAD_PARSED &&
+ ctx->state != MFCINST_RUNNING && ctx->state != MFCINST_FINISHING
+ && ctx->state != MFCINST_FINISHED) {
+ mfc_err("Cannont set crop\n");
+ return -EINVAL;
+ }
+ if (ctx->src_fmt->fourcc == V4L2_PIX_FMT_H264) {
+ left = s5p_mfc_read_shm(ctx, CROP_INFO_H);
+ right = left >> S5P_FIMV_SHARED_CROP_RIGHT_SHIFT;
+ left = left & S5P_FIMV_SHARED_CROP_LEFT_MASK;
+ top = s5p_mfc_read_shm(ctx, CROP_INFO_V);
+ bottom = top >> S5P_FIMV_SHARED_CROP_BOTTOM_SHIFT;
+ top = top & S5P_FIMV_SHARED_CROP_TOP_MASK;
+ cr->c.left = left;
+ cr->c.top = top;
+ cr->c.width = ctx->img_width - left - right;
+ cr->c.height = ctx->img_height - top - bottom;
+ mfc_debug(2, "Cropping info [h264]: l=%d t=%d "
+ "w=%d h=%d (r=%d b=%d fw=%d fh=%d\n", left, top,
+ cr->c.width, cr->c.height, right, bottom,
+ ctx->buf_width, ctx->buf_height);
+ } else {
+ cr->c.left = 0;
+ cr->c.top = 0;
+ cr->c.width = ctx->img_width;
+ cr->c.height = ctx->img_height;
+ mfc_debug(2, "Cropping info: w=%d h=%d fw=%d "
+ "fh=%d\n", cr->c.width, cr->c.height, ctx->buf_width,
+ ctx->buf_height);
+ }
+ return 0;
+}
+
+/* v4l2_ioctl_ops */
+static const struct v4l2_ioctl_ops s5p_mfc_dec_ioctl_ops = {
+ .vidioc_querycap = vidioc_querycap,
+ .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
+ .vidioc_enum_fmt_vid_cap_mplane = vidioc_enum_fmt_vid_cap_mplane,
+ .vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
+ .vidioc_enum_fmt_vid_out_mplane = vidioc_enum_fmt_vid_out_mplane,
+ .vidioc_g_fmt_vid_cap_mplane = vidioc_g_fmt,
+ .vidioc_g_fmt_vid_out_mplane = vidioc_g_fmt,
+ .vidioc_try_fmt_vid_cap_mplane = vidioc_try_fmt,
+ .vidioc_try_fmt_vid_out_mplane = vidioc_try_fmt,
+ .vidioc_s_fmt_vid_cap_mplane = vidioc_s_fmt,
+ .vidioc_s_fmt_vid_out_mplane = vidioc_s_fmt,
+ .vidioc_reqbufs = vidioc_reqbufs,
+ .vidioc_querybuf = vidioc_querybuf,
+ .vidioc_qbuf = vidioc_qbuf,
+ .vidioc_dqbuf = vidioc_dqbuf,
+ .vidioc_streamon = vidioc_streamon,
+ .vidioc_streamoff = vidioc_streamoff,
+ .vidioc_g_crop = vidioc_g_crop,
+};
+
+static int s5p_mfc_queue_setup(struct vb2_queue *vq,
+ const struct v4l2_format *fmt, unsigned int *buf_count,
+ unsigned int *plane_count, unsigned int psize[],
+ void *allocators[])
+{
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
+
+ /* Video output for decoding (source)
+ * this can be set after getting an instance */
+ if (ctx->state == MFCINST_INIT &&
+ vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ /* A single plane is required for input */
+ *plane_count = 1;
+ if (*buf_count < 1)
+ *buf_count = 1;
+ if (*buf_count > MFC_MAX_BUFFERS)
+ *buf_count = MFC_MAX_BUFFERS;
+ /* Video capture for decoding (destination)
+ * this can be set after the header was parsed */
+ } else if (ctx->state == MFCINST_HEAD_PARSED &&
+ vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+ /* Output plane count is 2 - one for Y and one for CbCr */
+ *plane_count = 2;
+ /* Setup buffer count */
+ if (*buf_count < ctx->dpb_count)
+ *buf_count = ctx->dpb_count;
+ if (*buf_count > ctx->dpb_count + MFC_MAX_EXTRA_DPB)
+ *buf_count = ctx->dpb_count + MFC_MAX_EXTRA_DPB;
+ if (*buf_count > MFC_MAX_BUFFERS)
+ *buf_count = MFC_MAX_BUFFERS;
+ } else {
+ mfc_err("State seems invalid. State = %d, vq->type = %d\n",
+ ctx->state, vq->type);
+ return -EINVAL;
+ }
+ mfc_debug(2, "Buffer count=%d, plane count=%d\n",
+ *buf_count, *plane_count);
+ if (ctx->state == MFCINST_HEAD_PARSED &&
+ vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+ psize[0] = ctx->luma_size;
+ psize[1] = ctx->chroma_size;
+ allocators[0] = ctx->dev->alloc_ctx[MFC_BANK2_ALLOC_CTX];
+ allocators[1] = ctx->dev->alloc_ctx[MFC_BANK1_ALLOC_CTX];
+ } else if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE &&
+ ctx->state == MFCINST_INIT) {
+ psize[0] = ctx->dec_src_buf_size;
+ allocators[0] = ctx->dev->alloc_ctx[MFC_BANK1_ALLOC_CTX];
+ } else {
+ mfc_err("This video node is dedicated to decoding. Decoding not initalised\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void s5p_mfc_unlock(struct vb2_queue *q)
+{
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
+ struct s5p_mfc_dev *dev = ctx->dev;
+
+ mutex_unlock(&dev->mfc_mutex);
+}
+
+static void s5p_mfc_lock(struct vb2_queue *q)
+{
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
+ struct s5p_mfc_dev *dev = ctx->dev;
+
+ mutex_lock(&dev->mfc_mutex);
+}
+
+static int s5p_mfc_buf_init(struct vb2_buffer *vb)
+{
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
+ unsigned int i;
+
+ if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+ if (ctx->capture_state == QUEUE_BUFS_MMAPED)
+ return 0;
+ for (i = 0; i <= ctx->src_fmt->num_planes ; i++) {
+ if (IS_ERR_OR_NULL(ERR_PTR(
+ vb2_dma_contig_plane_dma_addr(vb, i)))) {
+ mfc_err("Plane mem not allocated\n");
+ return -EINVAL;
+ }
+ }
+ if (vb2_plane_size(vb, 0) < ctx->luma_size ||
+ vb2_plane_size(vb, 1) < ctx->chroma_size) {
+ mfc_err("Plane buffer (CAPTURE) is too small\n");
+ return -EINVAL;
+ }
+ i = vb->v4l2_buf.index;
+ ctx->dst_bufs[i].b = vb;
+ ctx->dst_bufs[i].cookie.raw.luma =
+ vb2_dma_contig_plane_dma_addr(vb, 0);
+ ctx->dst_bufs[i].cookie.raw.chroma =
+ vb2_dma_contig_plane_dma_addr(vb, 1);
+ ctx->dst_bufs_cnt++;
+ } else if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ if (IS_ERR_OR_NULL(ERR_PTR(
+ vb2_dma_contig_plane_dma_addr(vb, 0)))) {
+ mfc_err("Plane memory not allocated\n");
+ return -EINVAL;
+ }
+ if (vb2_plane_size(vb, 0) < ctx->dec_src_buf_size) {
+ mfc_err("Plane buffer (OUTPUT) is too small\n");
+ return -EINVAL;
+ }
+
+ i = vb->v4l2_buf.index;
+ ctx->src_bufs[i].b = vb;
+ ctx->src_bufs[i].cookie.stream =
+ vb2_dma_contig_plane_dma_addr(vb, 0);
+ ctx->src_bufs_cnt++;
+ } else {
+ mfc_err("s5p_mfc_buf_init: unknown queue type\n");
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int s5p_mfc_start_streaming(struct vb2_queue *q, unsigned int count)
+{
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
+ struct s5p_mfc_dev *dev = ctx->dev;
+ unsigned long flags;
+
+ v4l2_ctrl_handler_setup(&ctx->ctrl_handler);
+ if (ctx->state == MFCINST_FINISHING ||
+ ctx->state == MFCINST_FINISHED)
+ ctx->state = MFCINST_RUNNING;
+ /* If context is ready then dev = work->data;schedule it to run */
+ if (s5p_mfc_ctx_ready(ctx)) {
+ spin_lock_irqsave(&dev->condlock, flags);
+ set_bit(ctx->num, &dev->ctx_work_bits);
+ spin_unlock_irqrestore(&dev->condlock, flags);
+ }
+ s5p_mfc_try_run(dev);
+ return 0;
+}
+
+static int s5p_mfc_stop_streaming(struct vb2_queue *q)
+{
+ unsigned long flags;
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(q->drv_priv);
+ struct s5p_mfc_dev *dev = ctx->dev;
+ int aborted = 0;
+
+ if ((ctx->state == MFCINST_FINISHING ||
+ ctx->state == MFCINST_RUNNING) &&
+ dev->curr_ctx == ctx->num && dev->hw_lock) {
+ ctx->state = MFCINST_ABORT;
+ s5p_mfc_wait_for_done_ctx(ctx,
+ S5P_FIMV_R2H_CMD_FRAME_DONE_RET, 0);
+ aborted = 1;
+ }
+ spin_lock_irqsave(&dev->irqlock, flags);
+ if (q->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+ s5p_mfc_cleanup_queue(&ctx->dst_queue, &ctx->vq_dst);
+ INIT_LIST_HEAD(&ctx->dst_queue);
+ ctx->dst_queue_cnt = 0;
+ ctx->dpb_flush_flag = 1;
+ ctx->dec_dst_flag = 0;
+ }
+ if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ s5p_mfc_cleanup_queue(&ctx->src_queue, &ctx->vq_src);
+ INIT_LIST_HEAD(&ctx->src_queue);
+ ctx->src_queue_cnt = 0;
+ }
+ if (aborted)
+ ctx->state = MFCINST_RUNNING;
+ spin_unlock_irqrestore(&dev->irqlock, flags);
+ return 0;
+}
+
+
+static void s5p_mfc_buf_queue(struct vb2_buffer *vb)
+{
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct s5p_mfc_ctx *ctx = fh_to_ctx(vq->drv_priv);
+ struct s5p_mfc_dev *dev = ctx->dev;
+ unsigned long flags;
+ struct s5p_mfc_buf *mfc_buf;
+
+ if (vq->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
+ mfc_buf = &ctx->src_bufs[vb->v4l2_buf.index];
+ mfc_buf->used = 0;
+ spin_lock_irqsave(&dev->irqlock, flags);
+ list_add_tail(&mfc_buf->list, &ctx->src_queue);
+ ctx->src_queue_cnt++;
+ spin_unlock_irqrestore(&dev->irqlock, flags);
+ } else if (vq->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
+ mfc_buf = &ctx->dst_bufs[vb->v4l2_buf.index];
+ mfc_buf->used = 0;
+ /* Mark destination as available for use by MFC */
+ spin_lock_irqsave(&dev->irqlock, flags);
+ set_bit(vb->v4l2_buf.index, &ctx->dec_dst_flag);
+ list_add_tail(&mfc_buf->list, &ctx->dst_queue);
+ ctx->dst_queue_cnt++;
+ spin_unlock_irqrestore(&dev->irqlock, flags);
+ } else {
+ mfc_err("Unsupported buffer type (%d)\n", vq->type);
+ }
+ if (s5p_mfc_ctx_ready(ctx)) {
+ spin_lock_irqsave(&dev->condlock, flags);
+ set_bit(ctx->num, &dev->ctx_work_bits);
+ spin_unlock_irqrestore(&dev->condlock, flags);
+ }
+ s5p_mfc_try_run(dev);
+}
+
+static struct vb2_ops s5p_mfc_dec_qops = {
+ .queue_setup = s5p_mfc_queue_setup,
+ .wait_prepare = s5p_mfc_unlock,
+ .wait_finish = s5p_mfc_lock,
+ .buf_init = s5p_mfc_buf_init,
+ .start_streaming = s5p_mfc_start_streaming,
+ .stop_streaming = s5p_mfc_stop_streaming,
+ .buf_queue = s5p_mfc_buf_queue,
+};
+
+struct s5p_mfc_codec_ops *get_dec_codec_ops(void)
+{
+ return &decoder_codec_ops;
+}
+
+struct vb2_ops *get_dec_queue_ops(void)
+{
+ return &s5p_mfc_dec_qops;
+}
+
+const struct v4l2_ioctl_ops *get_dec_v4l2_ioctl_ops(void)
+{
+ return &s5p_mfc_dec_ioctl_ops;
+}
+
+#define IS_MFC51_PRIV(x) ((V4L2_CTRL_ID2CLASS(x) == V4L2_CTRL_CLASS_MPEG) \
+ && V4L2_CTRL_DRIVER_PRIV(x))
+
+int s5p_mfc_dec_ctrls_setup(struct s5p_mfc_ctx *ctx)
+{
+ struct v4l2_ctrl_config cfg;
+ int i;
+
+ v4l2_ctrl_handler_init(&ctx->ctrl_handler, NUM_CTRLS);
+ if (ctx->ctrl_handler.error) {
+ mfc_err("v4l2_ctrl_handler_init failed\n");
+ return ctx->ctrl_handler.error;
+ }
+
+ for (i = 0; i < NUM_CTRLS; i++) {
+ if (IS_MFC51_PRIV(controls[i].id)) {
+ memset(&cfg, 0, sizeof(struct v4l2_ctrl_config));
+ cfg.ops = &s5p_mfc_dec_ctrl_ops;
+ cfg.id = controls[i].id;
+ cfg.min = controls[i].minimum;
+ cfg.max = controls[i].maximum;
+ cfg.def = controls[i].default_value;
+ cfg.name = controls[i].name;
+ cfg.type = controls[i].type;
+
+ cfg.step = controls[i].step;
+ cfg.menu_skip_mask = 0;
+
+ ctx->ctrls[i] = v4l2_ctrl_new_custom(&ctx->ctrl_handler,
+ &cfg, NULL);
+ } else {
+ ctx->ctrls[i] = v4l2_ctrl_new_std(&ctx->ctrl_handler,
+ &s5p_mfc_dec_ctrl_ops,
+ controls[i].id, controls[i].minimum,
+ controls[i].maximum, controls[i].step,
+ controls[i].default_value);
+ }
+ if (ctx->ctrl_handler.error) {
+ mfc_err("Adding control (%d) failed\n", i);
+ return ctx->ctrl_handler.error;
+ }
+ if (controls[i].is_volatile && ctx->ctrls[i])
+ ctx->ctrls[i]->flags |= V4L2_CTRL_FLAG_VOLATILE;
+ }
+ return 0;
+}
+
+void s5p_mfc_dec_ctrls_delete(struct s5p_mfc_ctx *ctx)
+{
+ int i;
+
+ v4l2_ctrl_handler_free(&ctx->ctrl_handler);
+ for (i = 0; i < NUM_CTRLS; i++)
+ ctx->ctrls[i] = NULL;
+}
+
projects / linux-imx.git / blobdiff