/* * Copyright (c) 2013 Texas Instruments Inc. * * David Griego, * Dale Farnsworth, * Archit Taneja, * * 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; /* tells whether vpdma firmware is loaded or not */ bool ready; }; 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, 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 frame_width, int frame_height, struct v4l2_rect *c_rect, const struct vpdma_data_format *fmt, dma_addr_t dma_addr, enum vpdma_channel chan, int field, u32 flags); /* 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); #endif