--- /dev/null
+/*
+ * 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
Code Review / kvmfornfv.git / blobdiff