288 lines
6.8 KiB
C
288 lines
6.8 KiB
C
/*
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* Coda multi-standard codec IP
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*
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* Copyright (C) 2012 Vista Silicon S.L.
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* Javier Martin, <javier.martin@vista-silicon.com>
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* Xavier Duret
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* Copyright (C) 2012-2014 Philipp Zabel, Pengutronix
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/debugfs.h>
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#include <linux/irqreturn.h>
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#include <linux/mutex.h>
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#include <linux/kfifo.h>
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#include <linux/videodev2.h>
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#include <media/v4l2-ctrls.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-fh.h>
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#include <media/videobuf2-core.h>
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#include "coda_regs.h"
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#define CODA_MAX_FRAMEBUFFERS 8
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#define CODA_MAX_FRAME_SIZE 0x100000
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#define FMO_SLICE_SAVE_BUF_SIZE (32)
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enum {
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V4L2_M2M_SRC = 0,
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V4L2_M2M_DST = 1,
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};
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enum coda_inst_type {
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CODA_INST_ENCODER,
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CODA_INST_DECODER,
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};
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enum coda_product {
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CODA_DX6 = 0xf001,
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CODA_7541 = 0xf012,
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CODA_960 = 0xf020,
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};
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struct coda_devtype {
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char *firmware;
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enum coda_product product;
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const struct coda_codec *codecs;
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unsigned int num_codecs;
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size_t workbuf_size;
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size_t tempbuf_size;
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size_t iram_size;
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};
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struct coda_aux_buf {
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void *vaddr;
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dma_addr_t paddr;
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u32 size;
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struct debugfs_blob_wrapper blob;
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struct dentry *dentry;
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};
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struct coda_dev {
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struct v4l2_device v4l2_dev;
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struct video_device vfd[2];
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struct platform_device *plat_dev;
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const struct coda_devtype *devtype;
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void __iomem *regs_base;
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struct clk *clk_per;
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struct clk *clk_ahb;
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struct reset_control *rstc;
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struct coda_aux_buf codebuf;
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struct coda_aux_buf tempbuf;
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struct coda_aux_buf workbuf;
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struct gen_pool *iram_pool;
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struct coda_aux_buf iram;
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spinlock_t irqlock;
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struct mutex dev_mutex;
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struct mutex coda_mutex;
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struct workqueue_struct *workqueue;
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struct v4l2_m2m_dev *m2m_dev;
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struct vb2_alloc_ctx *alloc_ctx;
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struct list_head instances;
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unsigned long instance_mask;
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struct dentry *debugfs_root;
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};
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struct coda_codec {
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u32 mode;
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u32 src_fourcc;
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u32 dst_fourcc;
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u32 max_w;
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u32 max_h;
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};
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struct coda_huff_tab;
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struct coda_params {
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u8 rot_mode;
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u8 h264_intra_qp;
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u8 h264_inter_qp;
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u8 h264_min_qp;
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u8 h264_max_qp;
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u8 h264_deblk_enabled;
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u8 h264_deblk_alpha;
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u8 h264_deblk_beta;
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u8 mpeg4_intra_qp;
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u8 mpeg4_inter_qp;
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u8 gop_size;
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int intra_refresh;
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int codec_mode;
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int codec_mode_aux;
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enum v4l2_mpeg_video_multi_slice_mode slice_mode;
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u32 framerate;
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u16 bitrate;
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u32 slice_max_bits;
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u32 slice_max_mb;
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};
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struct coda_timestamp {
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struct list_head list;
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u32 sequence;
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struct v4l2_timecode timecode;
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struct timeval timestamp;
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};
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/* Per-queue, driver-specific private data */
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struct coda_q_data {
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unsigned int width;
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unsigned int height;
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unsigned int bytesperline;
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unsigned int sizeimage;
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unsigned int fourcc;
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struct v4l2_rect rect;
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};
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struct coda_iram_info {
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u32 axi_sram_use;
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phys_addr_t buf_bit_use;
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phys_addr_t buf_ip_ac_dc_use;
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phys_addr_t buf_dbk_y_use;
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phys_addr_t buf_dbk_c_use;
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phys_addr_t buf_ovl_use;
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phys_addr_t buf_btp_use;
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phys_addr_t search_ram_paddr;
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int search_ram_size;
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int remaining;
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phys_addr_t next_paddr;
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};
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struct gdi_tiled_map {
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int xy2ca_map[16];
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int xy2ba_map[16];
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int xy2ra_map[16];
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int rbc2axi_map[32];
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int xy2rbc_config;
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int map_type;
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#define GDI_LINEAR_FRAME_MAP 0
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};
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struct coda_ctx;
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struct coda_context_ops {
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int (*queue_init)(void *priv, struct vb2_queue *src_vq,
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struct vb2_queue *dst_vq);
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int (*start_streaming)(struct coda_ctx *ctx);
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int (*prepare_run)(struct coda_ctx *ctx);
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void (*finish_run)(struct coda_ctx *ctx);
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void (*seq_end_work)(struct work_struct *work);
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void (*release)(struct coda_ctx *ctx);
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};
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struct coda_ctx {
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struct coda_dev *dev;
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struct mutex buffer_mutex;
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struct list_head list;
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struct work_struct pic_run_work;
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struct work_struct seq_end_work;
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struct completion completion;
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const struct coda_context_ops *ops;
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int aborting;
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int initialized;
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int streamon_out;
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int streamon_cap;
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u32 isequence;
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u32 qsequence;
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u32 osequence;
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u32 sequence_offset;
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struct coda_q_data q_data[2];
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enum coda_inst_type inst_type;
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const struct coda_codec *codec;
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enum v4l2_colorspace colorspace;
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struct coda_params params;
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struct v4l2_ctrl_handler ctrls;
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struct v4l2_fh fh;
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int gopcounter;
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int runcounter;
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char vpu_header[3][64];
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int vpu_header_size[3];
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struct kfifo bitstream_fifo;
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struct mutex bitstream_mutex;
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struct coda_aux_buf bitstream;
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bool hold;
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struct coda_aux_buf parabuf;
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struct coda_aux_buf psbuf;
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struct coda_aux_buf slicebuf;
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struct coda_aux_buf internal_frames[CODA_MAX_FRAMEBUFFERS];
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u32 frame_types[CODA_MAX_FRAMEBUFFERS];
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struct coda_timestamp frame_timestamps[CODA_MAX_FRAMEBUFFERS];
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u32 frame_errors[CODA_MAX_FRAMEBUFFERS];
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struct list_head timestamp_list;
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struct coda_aux_buf workbuf;
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int num_internal_frames;
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int idx;
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int reg_idx;
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struct coda_iram_info iram_info;
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struct gdi_tiled_map tiled_map;
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u32 bit_stream_param;
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u32 frm_dis_flg;
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u32 frame_mem_ctrl;
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int display_idx;
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struct dentry *debugfs_entry;
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};
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extern int coda_debug;
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void coda_write(struct coda_dev *dev, u32 data, u32 reg);
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unsigned int coda_read(struct coda_dev *dev, u32 reg);
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int coda_alloc_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf,
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size_t size, const char *name, struct dentry *parent);
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void coda_free_aux_buf(struct coda_dev *dev, struct coda_aux_buf *buf);
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static inline int coda_alloc_context_buf(struct coda_ctx *ctx,
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struct coda_aux_buf *buf, size_t size,
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const char *name)
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{
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return coda_alloc_aux_buf(ctx->dev, buf, size, name, ctx->debugfs_entry);
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}
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int coda_encoder_queue_init(void *priv, struct vb2_queue *src_vq,
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struct vb2_queue *dst_vq);
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int coda_decoder_queue_init(void *priv, struct vb2_queue *src_vq,
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struct vb2_queue *dst_vq);
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int coda_hw_reset(struct coda_ctx *ctx);
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void coda_fill_bitstream(struct coda_ctx *ctx);
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void coda_set_gdi_regs(struct coda_ctx *ctx);
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static inline struct coda_q_data *get_q_data(struct coda_ctx *ctx,
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enum v4l2_buf_type type)
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{
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switch (type) {
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case V4L2_BUF_TYPE_VIDEO_OUTPUT:
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return &(ctx->q_data[V4L2_M2M_SRC]);
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case V4L2_BUF_TYPE_VIDEO_CAPTURE:
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return &(ctx->q_data[V4L2_M2M_DST]);
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default:
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return NULL;
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}
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}
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const char *coda_product_name(int product);
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int coda_check_firmware(struct coda_dev *dev);
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static inline int coda_get_bitstream_payload(struct coda_ctx *ctx)
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{
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return kfifo_len(&ctx->bitstream_fifo);
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}
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void coda_bit_stream_end_flag(struct coda_ctx *ctx);
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int coda_h264_padding(int size, char *p);
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extern const struct coda_context_ops coda_bit_encode_ops;
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extern const struct coda_context_ops coda_bit_decode_ops;
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irqreturn_t coda_irq_handler(int irq, void *data);
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