2 * Copyright (c) 2013 Texas Instruments Inc.
4 * David Griego, <dagriego@biglakesoftware.com>
5 * Dale Farnsworth, <dale@farnsworth.org>
6 * Archit Taneja, <archit@ti.com>
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.
17 * A vpdma_buf tracks the size, DMA address and mapping status of each
27 struct vpdma_desc_list {
36 struct platform_device *pdev;
38 /* callback to VPE driver when the firmware is loaded */
39 void (*cb)(struct platform_device *pdev);
42 enum vpdma_data_format_type {
43 VPDMA_DATA_FMT_TYPE_YUV,
44 VPDMA_DATA_FMT_TYPE_RGB,
45 VPDMA_DATA_FMT_TYPE_MISC,
48 struct vpdma_data_format {
49 enum vpdma_data_format_type type;
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
59 #define VPDMA_DTD_DESC_SIZE 32 /* 8 words */
60 #define VPDMA_CFD_CTD_DESC_SIZE 16 /* 4 words */
62 #define VPDMA_LIST_TYPE_NORMAL 0
63 #define VPDMA_LIST_TYPE_SELF_MODIFYING 1
64 #define VPDMA_LIST_TYPE_DOORBELL 2
66 enum vpdma_yuv_formats {
67 VPDMA_DATA_FMT_Y444 = 0,
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,
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,
96 VPDMA_DATA_FMT_ABGR32,
97 VPDMA_DATA_FMT_BGRA24,
98 VPDMA_DATA_FMT_BGRA32,
101 enum vpdma_misc_formats {
102 VPDMA_DATA_FMT_MV = 0,
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[];
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,
121 * VPDMA channel numbers
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)
144 * client identifiers used for configuration descriptors
146 #define CFD_MMR_CLIENT 0
147 #define CFD_SC_CLIENT 4
149 /* Address data block header format */
150 struct vpdma_adb_hdr {
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)
161 #define VPDMA_SET_MMR_ADB_HDR(buf, str, hdr, regs, offset_a) \
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; \
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);
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);
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);
199 /* vpdma list interrupt management */
200 void vpdma_enable_list_complete_irq(struct vpdma_data *vpdma, int list_num,
202 void vpdma_clear_list_stat(struct vpdma_data *vpdma);
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);
210 void vpdma_dump_regs(struct vpdma_data *vpdma);
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));