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 #define VPDMA_MAX_NUM_LIST              8
  17 /*
  18  * A vpdma_buf tracks the size, DMA address and mapping status of each
  19  * driver DMA area.
  20  */
  21 struct vpdma_buf {
  22         void                    *addr;
  23         dma_addr_t              dma_addr;
  24         size_t                  size;
  25         bool                    mapped;
  26 };
  27
  28 struct vpdma_desc_list {
  29         struct vpdma_buf buf;
  30         void *next;
  31         int type;
  32 };
  33
  34 struct vpdma_data {
  35         void __iomem            *base;
  36
  37         struct platform_device  *pdev;
  38
  39         spinlock_t              lock;
  40         bool                    hwlist_used[VPDMA_MAX_NUM_LIST];
  41         void                    *hwlist_priv[VPDMA_MAX_NUM_LIST];
  42         /* callback to VPE driver when the firmware is loaded */
  43         void (*cb)(struct platform_device *pdev);
  44 };
  45
  46 enum vpdma_data_format_type {
  47         VPDMA_DATA_FMT_TYPE_YUV,
  48         VPDMA_DATA_FMT_TYPE_RGB,
  49         VPDMA_DATA_FMT_TYPE_MISC,
  50 };
  51
  52 struct vpdma_data_format {
  53         enum vpdma_data_format_type type;
  54         int data_type;
  55         u8 depth;
  56 };
  57
  58 #define VPDMA_DESC_ALIGN                16      /* 16-byte descriptor alignment */
  59 #define VPDMA_STRIDE_ALIGN              16      /*
  60                                                  * line stride of source and dest
  61                                                  * buffers should be 16 byte aligned
  62                                                  */
  63 #define VPDMA_DTD_DESC_SIZE             32      /* 8 words */
  64 #define VPDMA_CFD_CTD_DESC_SIZE         16      /* 4 words */
  65
  66 #define VPDMA_LIST_TYPE_NORMAL          0
  67 #define VPDMA_LIST_TYPE_SELF_MODIFYING  1
  68 #define VPDMA_LIST_TYPE_DOORBELL        2
  69
  70 enum vpdma_yuv_formats {
  71         VPDMA_DATA_FMT_Y444 = 0,
  72         VPDMA_DATA_FMT_Y422,
  73         VPDMA_DATA_FMT_Y420,
  74         VPDMA_DATA_FMT_C444,
  75         VPDMA_DATA_FMT_C422,
  76         VPDMA_DATA_FMT_C420,
  77         VPDMA_DATA_FMT_YCR422,
  78         VPDMA_DATA_FMT_YC444,
  79         VPDMA_DATA_FMT_CRY422,
  80         VPDMA_DATA_FMT_CBY422,
  81         VPDMA_DATA_FMT_YCB422,
  82 };
  83
  84 enum vpdma_rgb_formats {
  85         VPDMA_DATA_FMT_RGB565 = 0,
  86         VPDMA_DATA_FMT_ARGB16_1555,
  87         VPDMA_DATA_FMT_ARGB16,
  88         VPDMA_DATA_FMT_RGBA16_5551,
  89         VPDMA_DATA_FMT_RGBA16,
  90         VPDMA_DATA_FMT_ARGB24,
  91         VPDMA_DATA_FMT_RGB24,
  92         VPDMA_DATA_FMT_ARGB32,
  93         VPDMA_DATA_FMT_RGBA24,
  94         VPDMA_DATA_FMT_RGBA32,
  95         VPDMA_DATA_FMT_BGR565,
  96         VPDMA_DATA_FMT_ABGR16_1555,
  97         VPDMA_DATA_FMT_ABGR16,
  98         VPDMA_DATA_FMT_BGRA16_5551,
  99         VPDMA_DATA_FMT_BGRA16,
 100         VPDMA_DATA_FMT_ABGR24,
 101         VPDMA_DATA_FMT_BGR24,
 102         VPDMA_DATA_FMT_ABGR32,
 103         VPDMA_DATA_FMT_BGRA24,
 104         VPDMA_DATA_FMT_BGRA32,
 105 };
 106
 107 enum vpdma_raw_formats {
 108         VPDMA_DATA_FMT_RAW8 = 0,
 109         VPDMA_DATA_FMT_RAW16,
 110 };
 111
 112 enum vpdma_misc_formats {
 113         VPDMA_DATA_FMT_MV = 0,
 114 };
 115
 116 extern const struct vpdma_data_format vpdma_yuv_fmts[];
 117 extern const struct vpdma_data_format vpdma_rgb_fmts[];
 118 extern const struct vpdma_data_format vpdma_raw_fmts[];
 119 extern const struct vpdma_data_format vpdma_misc_fmts[];
 120
 121 enum vpdma_frame_start_event {
 122         VPDMA_FSEVENT_HDMI_FID = 0,
 123         VPDMA_FSEVENT_DVO2_FID,
 124         VPDMA_FSEVENT_HDCOMP_FID,
 125         VPDMA_FSEVENT_SD_FID,
 126         VPDMA_FSEVENT_LM_FID0,
 127         VPDMA_FSEVENT_LM_FID1,
 128         VPDMA_FSEVENT_LM_FID2,
 129         VPDMA_FSEVENT_CHANNEL_ACTIVE,
 130 };
 131
 132 /* max width configurations */
 133 enum vpdma_max_width {
 134         MAX_OUT_WIDTH_UNLIMITED = 0,
 135         MAX_OUT_WIDTH_REG1,
 136         MAX_OUT_WIDTH_REG2,
 137         MAX_OUT_WIDTH_REG3,
 138         MAX_OUT_WIDTH_352,
 139         MAX_OUT_WIDTH_768,
 140         MAX_OUT_WIDTH_1280,
 141         MAX_OUT_WIDTH_1920,
 142 };
 143
 144 /* max height configurations */
 145 enum vpdma_max_height {
 146         MAX_OUT_HEIGHT_UNLIMITED = 0,
 147         MAX_OUT_HEIGHT_REG1,
 148         MAX_OUT_HEIGHT_REG2,
 149         MAX_OUT_HEIGHT_REG3,
 150         MAX_OUT_HEIGHT_288,
 151         MAX_OUT_HEIGHT_576,
 152         MAX_OUT_HEIGHT_720,
 153         MAX_OUT_HEIGHT_1080,
 154 };
 155
 156 /*
 157  * VPDMA channel numbers
 158  */
 159 enum vpdma_channel {
 160         VPE_CHAN_LUMA1_IN,
 161         VPE_CHAN_CHROMA1_IN,
 162         VPE_CHAN_LUMA2_IN,
 163         VPE_CHAN_CHROMA2_IN,
 164         VPE_CHAN_LUMA3_IN,
 165         VPE_CHAN_CHROMA3_IN,
 166         VPE_CHAN_MV_IN,
 167         VPE_CHAN_MV_OUT,
 168         VPE_CHAN_LUMA_OUT,
 169         VPE_CHAN_CHROMA_OUT,
 170         VPE_CHAN_RGB_OUT,
 171 };
 172
 173 #define VIP_CHAN_VIP2_OFFSET            70
 174 #define VIP_CHAN_MULT_PORTB_OFFSET      16
 175 #define VIP_CHAN_YUV_PORTB_OFFSET       2
 176 #define VIP_CHAN_RGB_PORTB_OFFSET       1
 177
 178 #define VPDMA_MAX_CHANNELS              256
 179
 180 /* flags for VPDMA data descriptors */
 181 #define VPDMA_DATA_ODD_LINE_SKIP        (1 << 0)
 182 #define VPDMA_DATA_EVEN_LINE_SKIP       (1 << 1)
 183 #define VPDMA_DATA_FRAME_1D             (1 << 2)
 184 #define VPDMA_DATA_MODE_TILED           (1 << 3)
 185
 186 /*
 187  * client identifiers used for configuration descriptors
 188  */
 189 #define CFD_MMR_CLIENT          0
 190 #define CFD_SC_CLIENT           4
 191
 192 /* Address data block header format */
 193 struct vpdma_adb_hdr {
 194         u32                     offset;
 195         u32                     nwords;
 196         u32                     reserved0;
 197         u32                     reserved1;
 198 };
 199
 200 /* helpers for creating ADB headers for config descriptors MMRs as client */
 201 #define ADB_ADDR(dma_buf, str, fld)     ((dma_buf)->addr + offsetof(str, fld))
 202 #define MMR_ADB_ADDR(buf, str, fld)     ADB_ADDR(&(buf), struct str, fld)
 203
 204 #define VPDMA_SET_MMR_ADB_HDR(buf, str, hdr, regs, offset_a)    \
 205         do {                                                    \
 206                 struct vpdma_adb_hdr *h;                        \
 207                 struct str *adb = NULL;                         \
 208                 h = MMR_ADB_ADDR(buf, str, hdr);                \
 209                 h->offset = (offset_a);                         \
 210                 h->nwords = sizeof(adb->regs) >> 2;             \
 211         } while (0)
 212
 213 /* vpdma descriptor buffer allocation and management */
 214 int vpdma_alloc_desc_buf(struct vpdma_buf *buf, size_t size);
 215 void vpdma_free_desc_buf(struct vpdma_buf *buf);
 216 int vpdma_map_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf);
 217 void vpdma_unmap_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf);
 218
 219 /* vpdma descriptor list funcs */
 220 int vpdma_create_desc_list(struct vpdma_desc_list *list, size_t size, int type);
 221 void vpdma_reset_desc_list(struct vpdma_desc_list *list);
 222 void vpdma_free_desc_list(struct vpdma_desc_list *list);
 223 int vpdma_submit_descs(struct vpdma_data *vpdma, struct vpdma_desc_list *list,
 224                        int list_num);
 225 bool vpdma_list_busy(struct vpdma_data *vpdma, int list_num);
 226 void vpdma_update_dma_addr(struct vpdma_data *vpdma,
 227         struct vpdma_desc_list *list, dma_addr_t dma_addr,
 228         void *write_dtd, int drop, int idx);
 229
 230 /* VPDMA hardware list funcs */
 231 int vpdma_hwlist_alloc(struct vpdma_data *vpdma, void *priv);
 232 void *vpdma_hwlist_get_priv(struct vpdma_data *vpdma, int list_num);
 233 void *vpdma_hwlist_release(struct vpdma_data *vpdma, int list_num);
 234
 235 /* helpers for creating vpdma descriptors */
 236 void vpdma_add_cfd_block(struct vpdma_desc_list *list, int client,
 237                 struct vpdma_buf *blk, u32 dest_offset);
 238 void vpdma_add_cfd_adb(struct vpdma_desc_list *list, int client,
 239                 struct vpdma_buf *adb);
 240 void vpdma_add_sync_on_channel_ctd(struct vpdma_desc_list *list,
 241                 enum vpdma_channel chan);
 242 void vpdma_add_abort_channel_ctd(struct vpdma_desc_list *list,
 243                 int chan_num);
 244 void vpdma_add_out_dtd(struct vpdma_desc_list *list, int width,
 245                 const struct v4l2_rect *c_rect,
 246                 const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
 247                 int max_w, int max_h, enum vpdma_channel chan, u32 flags);
 248 void vpdma_rawchan_add_out_dtd(struct vpdma_desc_list *list, int width,
 249                 const struct v4l2_rect *c_rect,
 250                 const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
 251                 int max_w, int max_h, int raw_vpdma_chan, u32 flags);
 252
 253 void vpdma_add_in_dtd(struct vpdma_desc_list *list, int width,
 254                 const struct v4l2_rect *c_rect,
 255                 const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
 256                 enum vpdma_channel chan, int field, u32 flags, int frame_width,
 257                 int frame_height, int start_h, int start_v);
 258 int vpdma_list_cleanup(struct vpdma_data *vpdma, int list_num,
 259                 int *channels, int size);
 260
 261 /* vpdma list interrupt management */
 262 void vpdma_enable_list_complete_irq(struct vpdma_data *vpdma, int irq_num,
 263                 int list_num, bool enable);
 264 void vpdma_clear_list_stat(struct vpdma_data *vpdma, int irq_num,
 265                            int list_num);
 266 unsigned int vpdma_get_list_stat(struct vpdma_data *vpdma, int irq_num);
 267 unsigned int vpdma_get_list_mask(struct vpdma_data *vpdma, int irq_num);
 268
 269 /* vpdma client configuration */
 270 void vpdma_set_line_mode(struct vpdma_data *vpdma, int line_mode,
 271                 enum vpdma_channel chan);
 272 void vpdma_set_frame_start_event(struct vpdma_data *vpdma,
 273                 enum vpdma_frame_start_event fs_event, enum vpdma_channel chan);
 274 void vpdma_set_max_size(struct vpdma_data *vpdma, int reg_addr,
 275                         u32 width, u32 height);
 276
 277 void vpdma_set_bg_color(struct vpdma_data *vpdma,
 278                         struct vpdma_data_format *fmt, u32 color);
 279 void vpdma_dump_regs(struct vpdma_data *vpdma);
 280
 281 /* initialize vpdma, passed with VPE's platform device pointer */
 282 int vpdma_create(struct platform_device *pdev, struct vpdma_data *vpdma,
 283                 void (*cb)(struct platform_device *pdev));
 284
 285 #endif