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/*
* Copyright (c) 2013 Texas Instruments Inc.
*
* David Griego, <dagriego@biglakesoftware.com>
* Dale Farnsworth, <dale@farnsworth.org>
* Archit Taneja, <archit@ti.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*/
#ifndef __TI_VPDMA_H_
#define __TI_VPDMA_H_
/*
* A vpdma_buf tracks the size, DMA address and mapping status of each
* driver DMA area.
*/
struct vpdma_buf {
void *addr;
dma_addr_t dma_addr;
size_t size;
bool mapped;
};
struct vpdma_desc_list {
struct vpdma_buf buf;
void *next;
int type;
};
struct vpdma_data {
void __iomem *base;
struct platform_device *pdev;
/* callback to VPE driver when the firmware is loaded */
void (*cb)(struct platform_device *pdev);
};
enum vpdma_data_format_type {
VPDMA_DATA_FMT_TYPE_YUV,
VPDMA_DATA_FMT_TYPE_RGB,
VPDMA_DATA_FMT_TYPE_MISC,
};
struct vpdma_data_format {
enum vpdma_data_format_type type;
int data_type;
u8 depth;
};
#define VPDMA_DESC_ALIGN 16 /* 16-byte descriptor alignment */
#define VPDMA_STRIDE_ALIGN 16 /*
* line stride of source and dest
* buffers should be 16 byte aligned
*/
#define VPDMA_DTD_DESC_SIZE 32 /* 8 words */
#define VPDMA_CFD_CTD_DESC_SIZE 16 /* 4 words */
#define VPDMA_LIST_TYPE_NORMAL 0
#define VPDMA_LIST_TYPE_SELF_MODIFYING 1
#define VPDMA_LIST_TYPE_DOORBELL 2
enum vpdma_yuv_formats {
VPDMA_DATA_FMT_Y444 = 0,
VPDMA_DATA_FMT_Y422,
VPDMA_DATA_FMT_Y420,
VPDMA_DATA_FMT_C444,
VPDMA_DATA_FMT_C422,
VPDMA_DATA_FMT_C420,
VPDMA_DATA_FMT_YC422,
VPDMA_DATA_FMT_YC444,
VPDMA_DATA_FMT_CY422,
};
enum vpdma_rgb_formats {
VPDMA_DATA_FMT_RGB565 = 0,
VPDMA_DATA_FMT_ARGB16_1555,
VPDMA_DATA_FMT_ARGB16,
VPDMA_DATA_FMT_RGBA16_5551,
VPDMA_DATA_FMT_RGBA16,
VPDMA_DATA_FMT_ARGB24,
VPDMA_DATA_FMT_RGB24,
VPDMA_DATA_FMT_ARGB32,
VPDMA_DATA_FMT_RGBA24,
VPDMA_DATA_FMT_RGBA32,
VPDMA_DATA_FMT_BGR565,
VPDMA_DATA_FMT_ABGR16_1555,
VPDMA_DATA_FMT_ABGR16,
VPDMA_DATA_FMT_BGRA16_5551,
VPDMA_DATA_FMT_BGRA16,
VPDMA_DATA_FMT_ABGR24,
VPDMA_DATA_FMT_BGR24,
VPDMA_DATA_FMT_ABGR32,
VPDMA_DATA_FMT_BGRA24,
VPDMA_DATA_FMT_BGRA32,
};
enum vpdma_misc_formats {
VPDMA_DATA_FMT_MV = 0,
};
extern const struct vpdma_data_format vpdma_yuv_fmts[];
extern const struct vpdma_data_format vpdma_rgb_fmts[];
extern const struct vpdma_data_format vpdma_misc_fmts[];
enum vpdma_frame_start_event {
VPDMA_FSEVENT_HDMI_FID = 0,
VPDMA_FSEVENT_DVO2_FID,
VPDMA_FSEVENT_HDCOMP_FID,
VPDMA_FSEVENT_SD_FID,
VPDMA_FSEVENT_LM_FID0,
VPDMA_FSEVENT_LM_FID1,
VPDMA_FSEVENT_LM_FID2,
VPDMA_FSEVENT_CHANNEL_ACTIVE,
};
/*
* VPDMA channel numbers
*/
enum vpdma_channel {
VPE_CHAN_LUMA1_IN,
VPE_CHAN_CHROMA1_IN,
VPE_CHAN_LUMA2_IN,
VPE_CHAN_CHROMA2_IN,
VPE_CHAN_LUMA3_IN,
VPE_CHAN_CHROMA3_IN,
VPE_CHAN_MV_IN,
VPE_CHAN_MV_OUT,
VPE_CHAN_LUMA_OUT,
VPE_CHAN_CHROMA_OUT,
VPE_CHAN_RGB_OUT,
};
/* flags for VPDMA data descriptors */
#define VPDMA_DATA_ODD_LINE_SKIP (1 << 0)
#define VPDMA_DATA_EVEN_LINE_SKIP (1 << 1)
#define VPDMA_DATA_FRAME_1D (1 << 2)
#define VPDMA_DATA_MODE_TILED (1 << 3)
/*
* client identifiers used for configuration descriptors
*/
#define CFD_MMR_CLIENT 0
#define CFD_SC_CLIENT 4
/* Address data block header format */
struct vpdma_adb_hdr {
u32 offset;
u32 nwords;
u32 reserved0;
u32 reserved1;
};
/* helpers for creating ADB headers for config descriptors MMRs as client */
#define ADB_ADDR(dma_buf, str, fld) ((dma_buf)->addr + offsetof(str, fld))
#define MMR_ADB_ADDR(buf, str, fld) ADB_ADDR(&(buf), struct str, fld)
#define VPDMA_SET_MMR_ADB_HDR(buf, str, hdr, regs, offset_a) \
do { \
struct vpdma_adb_hdr *h; \
struct str *adb = NULL; \
h = MMR_ADB_ADDR(buf, str, hdr); \
h->offset = (offset_a); \
h->nwords = sizeof(adb->regs) >> 2; \
} while (0)
/* vpdma descriptor buffer allocation and management */
int vpdma_alloc_desc_buf(struct vpdma_buf *buf, size_t size);
void vpdma_free_desc_buf(struct vpdma_buf *buf);
int vpdma_map_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf);
void vpdma_unmap_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf);
/* vpdma descriptor list funcs */
int vpdma_create_desc_list(struct vpdma_desc_list *list, size_t size, int type);
void vpdma_reset_desc_list(struct vpdma_desc_list *list);
void vpdma_free_desc_list(struct vpdma_desc_list *list);
int vpdma_submit_descs(struct vpdma_data *vpdma, struct vpdma_desc_list *list);
/* helpers for creating vpdma descriptors */
void vpdma_add_cfd_block(struct vpdma_desc_list *list, int client,
struct vpdma_buf *blk, u32 dest_offset);
void vpdma_add_cfd_adb(struct vpdma_desc_list *list, int client,
struct vpdma_buf *adb);
void vpdma_add_sync_on_channel_ctd(struct vpdma_desc_list *list,
enum vpdma_channel chan);
void vpdma_add_out_dtd(struct vpdma_desc_list *list, int width,
const struct v4l2_rect *c_rect,
const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
enum vpdma_channel chan, u32 flags);
void vpdma_add_in_dtd(struct vpdma_desc_list *list, int width,
const struct v4l2_rect *c_rect,
const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
enum vpdma_channel chan, int field, u32 flags, int frame_width,
int frame_height, int start_h, int start_v);
/* vpdma list interrupt management */
void vpdma_enable_list_complete_irq(struct vpdma_data *vpdma, int list_num,
bool enable);
void vpdma_clear_list_stat(struct vpdma_data *vpdma);
/* vpdma client configuration */
void vpdma_set_line_mode(struct vpdma_data *vpdma, int line_mode,
enum vpdma_channel chan);
void vpdma_set_frame_start_event(struct vpdma_data *vpdma,
enum vpdma_frame_start_event fs_event, enum vpdma_channel chan);
void vpdma_dump_regs(struct vpdma_data *vpdma);
/* initialize vpdma, passed with VPE's platform device pointer */
struct vpdma_data *vpdma_create(struct platform_device *pdev,
void (*cb)(struct platform_device *pdev));
#endif
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