drivers/media/platform/ti-vpe/vpdma.h

   1 /*
   2  * Copyright (c) 2013 Texas Instruments Inc.
   3  *
   4  * David Griego, <dagriego@biglakesoftware.com>
   5  * Dale Farnsworth, <dale@farnsworth.org>
   6  * Archit Taneja, <archit@ti.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License version 2 as published by
  10  * the Free Software Foundation.
  11  */
  12
  13 #ifndef __TI_VPDMA_H_
  14 #define __TI_VPDMA_H_
  15
  16 /*
  17  * A vpdma_buf tracks the size, DMA address and mapping status of each
  18  * driver DMA area.
  19  */
  20 struct vpdma_buf {
  21         void                    *addr;
  22         dma_addr_t              dma_addr;
  23         size_t                  size;
  24         bool                    mapped;
  25 };
  26
  27 struct vpdma_desc_list {
  28         struct vpdma_buf buf;
  29         void *next;
  30         int type;
  31 };
  32
  33 struct vpdma_data {
  34         void __iomem            *base;
  35
  36         struct platform_device  *pdev;
  37
  38         /* callback to VPE driver when the firmware is loaded */
  39         void (*cb)(struct platform_device *pdev);
  40 };
  41
  42 enum vpdma_data_format_type {
  43         VPDMA_DATA_FMT_TYPE_YUV,
  44         VPDMA_DATA_FMT_TYPE_RGB,
  45         VPDMA_DATA_FMT_TYPE_MISC,
  46 };
  47
  48 struct vpdma_data_format {
  49         enum vpdma_data_format_type type;
  50         int data_type;
  51         u8 depth;
  52 };
  53
  54 #define VPDMA_DESC_ALIGN                16      /* 16-byte descriptor alignment */
  55 #define VPDMA_STRIDE_ALIGN              16      /*
  56                                                  * line stride of source and dest
  57                                                  * buffers should be 16 byte aligned
  58                                                  */
  59 #define VPDMA_DTD_DESC_SIZE             32      /* 8 words */
  60 #define VPDMA_CFD_CTD_DESC_SIZE         16      /* 4 words */
  61
  62 #define VPDMA_LIST_TYPE_NORMAL          0
  63 #define VPDMA_LIST_TYPE_SELF_MODIFYING  1
  64 #define VPDMA_LIST_TYPE_DOORBELL        2
  65
  66 enum vpdma_yuv_formats {
  67         VPDMA_DATA_FMT_Y444 = 0,
  68         VPDMA_DATA_FMT_Y422,
  69         VPDMA_DATA_FMT_Y420,
  70         VPDMA_DATA_FMT_C444,
  71         VPDMA_DATA_FMT_C422,
  72         VPDMA_DATA_FMT_C420,
  73         VPDMA_DATA_FMT_YC422,
  74         VPDMA_DATA_FMT_YC444,
  75         VPDMA_DATA_FMT_CY422,
  76 };
  77
  78 enum vpdma_rgb_formats {
  79         VPDMA_DATA_FMT_RGB565 = 0,
  80         VPDMA_DATA_FMT_ARGB16_1555,
  81         VPDMA_DATA_FMT_ARGB16,
  82         VPDMA_DATA_FMT_RGBA16_5551,
  83         VPDMA_DATA_FMT_RGBA16,
  84         VPDMA_DATA_FMT_ARGB24,
  85         VPDMA_DATA_FMT_RGB24,
  86         VPDMA_DATA_FMT_ARGB32,
  87         VPDMA_DATA_FMT_RGBA24,
  88         VPDMA_DATA_FMT_RGBA32,
  89         VPDMA_DATA_FMT_BGR565,
  90         VPDMA_DATA_FMT_ABGR16_1555,
  91         VPDMA_DATA_FMT_ABGR16,
  92         VPDMA_DATA_FMT_BGRA16_5551,
  93         VPDMA_DATA_FMT_BGRA16,
  94         VPDMA_DATA_FMT_ABGR24,
  95         VPDMA_DATA_FMT_BGR24,
  96         VPDMA_DATA_FMT_ABGR32,
  97         VPDMA_DATA_FMT_BGRA24,
  98         VPDMA_DATA_FMT_BGRA32,
  99 };
 100
 101 enum vpdma_misc_formats {
 102         VPDMA_DATA_FMT_MV = 0,
 103 };
 104
 105 extern const struct vpdma_data_format vpdma_yuv_fmts[];
 106 extern const struct vpdma_data_format vpdma_rgb_fmts[];
 107 extern const struct vpdma_data_format vpdma_misc_fmts[];
 108
 109 enum vpdma_frame_start_event {
 110         VPDMA_FSEVENT_HDMI_FID = 0,
 111         VPDMA_FSEVENT_DVO2_FID,
 112         VPDMA_FSEVENT_HDCOMP_FID,
 113         VPDMA_FSEVENT_SD_FID,
 114         VPDMA_FSEVENT_LM_FID0,
 115         VPDMA_FSEVENT_LM_FID1,
 116         VPDMA_FSEVENT_LM_FID2,
 117         VPDMA_FSEVENT_CHANNEL_ACTIVE,
 118 };
 119
 120 /*
 121  * VPDMA channel numbers
 122  */
 123 enum vpdma_channel {
 124         VPE_CHAN_LUMA1_IN,
 125         VPE_CHAN_CHROMA1_IN,
 126         VPE_CHAN_LUMA2_IN,
 127         VPE_CHAN_CHROMA2_IN,
 128         VPE_CHAN_LUMA3_IN,
 129         VPE_CHAN_CHROMA3_IN,
 130         VPE_CHAN_MV_IN,
 131         VPE_CHAN_MV_OUT,
 132         VPE_CHAN_LUMA_OUT,
 133         VPE_CHAN_CHROMA_OUT,
 134         VPE_CHAN_RGB_OUT,
 135 };
 136
 137 /* flags for VPDMA data descriptors */
 138 #define VPDMA_DATA_ODD_LINE_SKIP        (1 << 0)
 139 #define VPDMA_DATA_EVEN_LINE_SKIP       (1 << 1)
 140 #define VPDMA_DATA_FRAME_1D             (1 << 2)
 141 #define VPDMA_DATA_MODE_TILED           (1 << 3)
 142
 143 /*
 144  * client identifiers used for configuration descriptors
 145  */
 146 #define CFD_MMR_CLIENT          0
 147 #define CFD_SC_CLIENT           4
 148
 149 /* Address data block header format */
 150 struct vpdma_adb_hdr {
 151         u32                     offset;
 152         u32                     nwords;
 153         u32                     reserved0;
 154         u32                     reserved1;
 155 };
 156
 157 /* helpers for creating ADB headers for config descriptors MMRs as client */
 158 #define ADB_ADDR(dma_buf, str, fld)     ((dma_buf)->addr + offsetof(str, fld))
 159 #define MMR_ADB_ADDR(buf, str, fld)     ADB_ADDR(&(buf), struct str, fld)
 160
 161 #define VPDMA_SET_MMR_ADB_HDR(buf, str, hdr, regs, offset_a)    \
 162         do {                                                    \
 163                 struct vpdma_adb_hdr *h;                        \
 164                 struct str *adb = NULL;                         \
 165                 h = MMR_ADB_ADDR(buf, str, hdr);                \
 166                 h->offset = (offset_a);                         \
 167                 h->nwords = sizeof(adb->regs) >> 2;             \
 168         } while (0)
 169
 170 /* vpdma descriptor buffer allocation and management */
 171 int vpdma_alloc_desc_buf(struct vpdma_buf *buf, size_t size);
 172 void vpdma_free_desc_buf(struct vpdma_buf *buf);
 173 int vpdma_map_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf);
 174 void vpdma_unmap_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf);
 175
 176 /* vpdma descriptor list funcs */
 177 int vpdma_create_desc_list(struct vpdma_desc_list *list, size_t size, int type);
 178 void vpdma_reset_desc_list(struct vpdma_desc_list *list);
 179 void vpdma_free_desc_list(struct vpdma_desc_list *list);
 180 int vpdma_submit_descs(struct vpdma_data *vpdma, struct vpdma_desc_list *list);
 181
 182 /* helpers for creating vpdma descriptors */
 183 void vpdma_add_cfd_block(struct vpdma_desc_list *list, int client,
 184                 struct vpdma_buf *blk, u32 dest_offset);
 185 void vpdma_add_cfd_adb(struct vpdma_desc_list *list, int client,
 186                 struct vpdma_buf *adb);
 187 void vpdma_add_sync_on_channel_ctd(struct vpdma_desc_list *list,
 188                 enum vpdma_channel chan);
 189 void vpdma_add_out_dtd(struct vpdma_desc_list *list, int width,
 190                 const struct v4l2_rect *c_rect,
 191                 const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
 192                 enum vpdma_channel chan, u32 flags);
 193 void vpdma_add_in_dtd(struct vpdma_desc_list *list, int width,
 194                 const struct v4l2_rect *c_rect,
 195                 const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
 196                 enum vpdma_channel chan, int field, u32 flags, int frame_width,
 197                 int frame_height, int start_h, int start_v);
 198
 199 /* vpdma list interrupt management */
 200 void vpdma_enable_list_complete_irq(struct vpdma_data *vpdma, int list_num,
 201                 bool enable);
 202 void vpdma_clear_list_stat(struct vpdma_data *vpdma);
 203
 204 /* vpdma client configuration */
 205 void vpdma_set_line_mode(struct vpdma_data *vpdma, int line_mode,
 206                 enum vpdma_channel chan);
 207 void vpdma_set_frame_start_event(struct vpdma_data *vpdma,
 208                 enum vpdma_frame_start_event fs_event, enum vpdma_channel chan);
 209
 210 void vpdma_dump_regs(struct vpdma_data *vpdma);
 211
 212 /* initialize vpdma, passed with VPE's platform device pointer */
 213 struct vpdma_data *vpdma_create(struct platform_device *pdev,
 214                 void (*cb)(struct platform_device *pdev));
 215
 216 #endif