diff options
Diffstat (limited to 'drivers/media/video/coda.c')
| -rw-r--r-- | drivers/media/video/coda.c | 1849 |
1 files changed, 0 insertions, 1849 deletions
diff --git a/drivers/media/video/coda.c b/drivers/media/video/coda.c deleted file mode 100644 index 0d6e0a0..0000000 --- a/drivers/media/video/coda.c +++ /dev/null @@ -1,1849 +0,0 @@ -/* - * 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 <linux/of.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 MAX_W 720 -#define MAX_H 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_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; - u32 size; -}; - -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; - - 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; - enum v4l2_colorspace colorspace; - 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; - int num_formats = dev->devtype->num_formats; - unsigned int k; - - for (k = 0; k < num_formats; k++) { - if (formats[k].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) -{ - strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver)); - strlcpy(cap->card, CODA_NAME, sizeof(cap->card)); - strlcpy(cap->bus_info, CODA_NAME, sizeof(cap->bus_info)); - cap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OUTPUT - | V4L2_CAP_STREAMING; - cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; - - 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)); - 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 file *file, void *priv, struct v4l2_format *f) -{ - struct vb2_queue *vq; - struct coda_q_data *q_data; - struct coda_ctx *ctx = fh_to_ctx(priv); - - 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; - f->fmt.pix.width = q_data->width; - f->fmt.pix.height = q_data->height; - if (f->fmt.pix.pixelformat == V4L2_PIX_FMT_YUV420) - f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 2); - else /* encoded formats h.264/mpeg4 */ - f->fmt.pix.bytesperline = 0; - - f->fmt.pix.sizeimage = q_data->sizeimage; - f->fmt.pix.colorspace = ctx->colorspace; - - return 0; -} - -static int vidioc_try_fmt(struct coda_dev *dev, struct v4l2_format *f) -{ - enum v4l2_field field; - - 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 = 0; - 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) -{ - int ret; - 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)) - f->fmt.pix.pixelformat = V4L2_PIX_FMT_H264; - - f->fmt.pix.colorspace = ctx->colorspace; - - ret = vidioc_try_fmt(ctx->dev, f); - if (ret < 0) - return ret; - - return 0; -} - -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; - int ret; - - 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)) - f->fmt.pix.pixelformat = V4L2_PIX_FMT_YUV420; - - if (!f->fmt.pix.colorspace) - f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709; - - ret = vidioc_try_fmt(ctx->dev, f); - if (ret < 0) - return ret; - - return 0; -} - -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); - q_data->width = f->fmt.pix.width; - q_data->height = f->fmt.pix.height; - if (q_data->fmt->fourcc == V4L2_PIX_FMT_YUV420) { - 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) -{ - struct coda_ctx *ctx = fh_to_ctx(priv); - int ret; - - ret = vidioc_try_fmt_vid_out(file, priv, f); - if (ret) - return ret; - - ret = vidioc_s_fmt(fh_to_ctx(priv), f); - if (ret) - ctx->colorspace = f->fmt.pix.colorspace; - - return ret; -} - -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) -{ - struct coda_ctx *ctx = fh_to_ctx(priv); - - return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf); -} - -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, - .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, - .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 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) || - !v4l2_m2m_num_dst_bufs_ready(ctx->m2m_ctx)) { - 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->colorspace = V4L2_COLORSPACE_REC709; - 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]; - ctx->q_data[V4L2_M2M_SRC].width = MAX_W; - ctx->q_data[V4L2_M2M_SRC].height = MAX_H; - ctx->q_data[V4L2_M2M_SRC].sizeimage = (MAX_W * MAX_H * 3) / 2; - ctx->q_data[V4L2_M2M_DST].width = MAX_W; - ctx->q_data[V4L2_M2M_DST].height = MAX_H; - ctx->q_data[V4L2_M2M_DST].sizeimage = CODA_MAX_FRAME_SIZE; -} - -/* - * 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 = MAX_W * - MAX_H * 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 v4l2_device *v4l2_dev = &ctx->dev->v4l2_dev; - u32 bitstream_buf, bitstream_size; - struct coda_dev *dev = ctx->dev; - 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; - - if (count < 1) - return -EINVAL; - - if (q->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) - ctx->rawstreamon = 1; - else - ctx->compstreamon = 1; - - /* Don't start the coda unless both queues are on */ - if (!(ctx->rawstreamon & ctx->compstreamon)) - return 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(v4l2_dev, "decoding not supported.\n"); - return -EINVAL; - } else { - v4l2_err(v4l2_dev, "couldn't tell instance type.\n"); - return -EINVAL; - } - - if (!coda_is_initialized(dev)) { - v4l2_err(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: - coda_write(dev, CODADX6_STREAM_BUF_DYNALLOC_EN | - CODADX6_STREAM_BUF_PIC_RESET, CODA_REG_BIT_STREAM_CTRL); - break; - default: - coda_write(dev, CODA7_STREAM_BUF_DYNALLOC_EN | - CODA7_STREAM_BUF_PIC_RESET, 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: - if (dev->devtype->product == CODA_DX6) - ctx->params.codec_mode = CODADX6_MODE_ENCODE_MP4; - else - ctx->params.codec_mode = CODA7_MODE_ENCODE_MP4; - - coda_write(dev, CODA_STD_MPEG4, CODA_CMD_ENC_SEQ_COD_STD); - coda_write(dev, 0, CODA_CMD_ENC_SEQ_MP4_PARA); - break; - case V4L2_PIX_FMT_H264: - if (dev->devtype->product == CODA_DX6) - ctx->params.codec_mode = CODADX6_MODE_ENCODE_H264; - else - ctx->params.codec_mode = CODA7_MODE_ENCODE_H264; - - coda_write(dev, CODA_STD_H264, CODA_CMD_ENC_SEQ_COD_STD); - coda_write(dev, 0, CODA_CMD_ENC_SEQ_264_PARA); - break; - default: - v4l2_err(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 = (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(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(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(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(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(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(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(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); - - if (ctx->ctrls.error) { - v4l2_err(&ctx->dev->v4l2_dev, "control initialization error (%d)", - ctx->ctrls.error); - return -EINVAL; - } - - 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 vb2_buffer *src_buf, *dst_buf, *tmp_buf; - struct coda_dev *dev = data; - u32 wr_ptr, start_ptr; - struct coda_ctx *ctx; - - /* 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); - - 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 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; - 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; - } - - dev->vfd.fops = &coda_fops, - dev->vfd.ioctl_ops = &coda_ioctl_ops; - dev->vfd.release = video_device_release_empty, - dev->vfd.lock = &dev->dev_mutex; - dev->vfd.v4l2_dev = &dev->v4l2_dev; - snprintf(dev->vfd.name, sizeof(dev->vfd.name), "%s", CODA_NAME); - video_set_drvdata(&dev->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"); - return; - } - - 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(&dev->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", - dev->vfd.num); - - return; - -rel_m2m: - v4l2_m2m_release(dev->m2m_dev); -rel_ctx: - vb2_dma_contig_cleanup_ctx(dev->alloc_ctx); -} - -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(of, 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; - int ret, irq; - - 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 */ - irq = platform_get_irq(pdev, 0); - if (irq < 0) { - dev_err(&pdev->dev, "failed to get irq resource\n"); - return -ENOENT; - } - - if (devm_request_irq(&pdev->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 { - v4l2_device_unregister(&dev->v4l2_dev); - return -EINVAL; - } - - /* allocate auxiliary per-device buffers for the BIT processor */ - switch (dev->devtype->product) { - case CODA_DX6: - dev->workbuf.size = CODADX6_WORK_BUF_SIZE; - break; - default: - dev->workbuf.size = CODA7_WORK_BUF_SIZE; - } - dev->workbuf.vaddr = dma_alloc_coherent(&pdev->dev, dev->workbuf.size, - &dev->workbuf.paddr, - GFP_KERNEL); - if (!dev->workbuf.vaddr) { - dev_err(&pdev->dev, "failed to allocate work buffer\n"); - v4l2_device_unregister(&dev->v4l2_dev); - 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); - - video_unregister_device(&dev->vfd); - if (dev->m2m_dev) - v4l2_m2m_release(dev->m2m_dev); - if (dev->alloc_ctx) - vb2_dma_contig_cleanup_ctx(dev->alloc_ctx); - v4l2_device_unregister(&dev->v4l2_dev); - if (dev->codebuf.vaddr) - dma_free_coherent(&pdev->dev, dev->codebuf.size, - &dev->codebuf.vaddr, dev->codebuf.paddr); - if (dev->workbuf.vaddr) - dma_free_coherent(&pdev->dev, dev->workbuf.size, &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"); |
