forked from Minki/linux
928bf2ba2f
Some parameters of the VPE descriptors were understood incorrectly. They are now fixed. The fixes are explained as follows: - When adding an inbound data descriptor to the VPDMA descriptor list, we intend to use c_rect as the cropped region fetched by VPDMA. Therefore, c_rect->width shouldn't be used to calculate the line stride, the original image width should be used for that. We add a 'width' argument which gives the buffer width in memory. - frame_width and frame_height describe the complete width and height of the client to which the channel is connected. If there are multiple channels fetching data and providing to the same client, the above 2 arguments should be the width and height of the region covered by all the channels. In the case where there is only one channel providing pixel data to the client (like in VPE), frame_width and frame_height should be the cropped width and cropped height respectively. The calculation of these params is done in the vpe driver now. - start_h and start_v is also used in the case of multiple channels to describe where each channel should start filling pixel data. We don't use this in VPE, and pass 0s to the vpdma_add_in_dtd() helper. - Some minor changes are made to the vpdma_add_out_dtd() helper. The c_rect param is used for specifying the 'composition' target, and 'width' is added to calculate the line stride. Signed-off-by: Archit Taneja <archit@ti.com> Acked-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
217 lines
5.9 KiB
C
217 lines
5.9 KiB
C
/*
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* Copyright (c) 2013 Texas Instruments Inc.
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*
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* David Griego, <dagriego@biglakesoftware.com>
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* Dale Farnsworth, <dale@farnsworth.org>
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* Archit Taneja, <archit@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*/
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#ifndef __TI_VPDMA_H_
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#define __TI_VPDMA_H_
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/*
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* A vpdma_buf tracks the size, DMA address and mapping status of each
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* driver DMA area.
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*/
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struct vpdma_buf {
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void *addr;
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dma_addr_t dma_addr;
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size_t size;
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bool mapped;
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};
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struct vpdma_desc_list {
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struct vpdma_buf buf;
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void *next;
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int type;
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};
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struct vpdma_data {
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void __iomem *base;
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struct platform_device *pdev;
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/* callback to VPE driver when the firmware is loaded */
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void (*cb)(struct platform_device *pdev);
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};
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enum vpdma_data_format_type {
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VPDMA_DATA_FMT_TYPE_YUV,
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VPDMA_DATA_FMT_TYPE_RGB,
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VPDMA_DATA_FMT_TYPE_MISC,
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};
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struct vpdma_data_format {
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enum vpdma_data_format_type type;
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int data_type;
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u8 depth;
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};
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#define VPDMA_DESC_ALIGN 16 /* 16-byte descriptor alignment */
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#define VPDMA_STRIDE_ALIGN 16 /*
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* line stride of source and dest
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* buffers should be 16 byte aligned
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*/
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#define VPDMA_DTD_DESC_SIZE 32 /* 8 words */
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#define VPDMA_CFD_CTD_DESC_SIZE 16 /* 4 words */
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#define VPDMA_LIST_TYPE_NORMAL 0
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#define VPDMA_LIST_TYPE_SELF_MODIFYING 1
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#define VPDMA_LIST_TYPE_DOORBELL 2
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enum vpdma_yuv_formats {
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VPDMA_DATA_FMT_Y444 = 0,
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VPDMA_DATA_FMT_Y422,
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VPDMA_DATA_FMT_Y420,
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VPDMA_DATA_FMT_C444,
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VPDMA_DATA_FMT_C422,
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VPDMA_DATA_FMT_C420,
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VPDMA_DATA_FMT_YC422,
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VPDMA_DATA_FMT_YC444,
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VPDMA_DATA_FMT_CY422,
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};
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enum vpdma_rgb_formats {
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VPDMA_DATA_FMT_RGB565 = 0,
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VPDMA_DATA_FMT_ARGB16_1555,
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VPDMA_DATA_FMT_ARGB16,
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VPDMA_DATA_FMT_RGBA16_5551,
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VPDMA_DATA_FMT_RGBA16,
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VPDMA_DATA_FMT_ARGB24,
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VPDMA_DATA_FMT_RGB24,
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VPDMA_DATA_FMT_ARGB32,
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VPDMA_DATA_FMT_RGBA24,
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VPDMA_DATA_FMT_RGBA32,
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VPDMA_DATA_FMT_BGR565,
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VPDMA_DATA_FMT_ABGR16_1555,
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VPDMA_DATA_FMT_ABGR16,
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VPDMA_DATA_FMT_BGRA16_5551,
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VPDMA_DATA_FMT_BGRA16,
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VPDMA_DATA_FMT_ABGR24,
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VPDMA_DATA_FMT_BGR24,
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VPDMA_DATA_FMT_ABGR32,
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VPDMA_DATA_FMT_BGRA24,
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VPDMA_DATA_FMT_BGRA32,
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};
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enum vpdma_misc_formats {
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VPDMA_DATA_FMT_MV = 0,
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};
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extern const struct vpdma_data_format vpdma_yuv_fmts[];
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extern const struct vpdma_data_format vpdma_rgb_fmts[];
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extern const struct vpdma_data_format vpdma_misc_fmts[];
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enum vpdma_frame_start_event {
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VPDMA_FSEVENT_HDMI_FID = 0,
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VPDMA_FSEVENT_DVO2_FID,
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VPDMA_FSEVENT_HDCOMP_FID,
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VPDMA_FSEVENT_SD_FID,
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VPDMA_FSEVENT_LM_FID0,
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VPDMA_FSEVENT_LM_FID1,
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VPDMA_FSEVENT_LM_FID2,
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VPDMA_FSEVENT_CHANNEL_ACTIVE,
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};
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/*
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* VPDMA channel numbers
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*/
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enum vpdma_channel {
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VPE_CHAN_LUMA1_IN,
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VPE_CHAN_CHROMA1_IN,
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VPE_CHAN_LUMA2_IN,
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VPE_CHAN_CHROMA2_IN,
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VPE_CHAN_LUMA3_IN,
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VPE_CHAN_CHROMA3_IN,
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VPE_CHAN_MV_IN,
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VPE_CHAN_MV_OUT,
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VPE_CHAN_LUMA_OUT,
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VPE_CHAN_CHROMA_OUT,
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VPE_CHAN_RGB_OUT,
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};
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/* flags for VPDMA data descriptors */
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#define VPDMA_DATA_ODD_LINE_SKIP (1 << 0)
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#define VPDMA_DATA_EVEN_LINE_SKIP (1 << 1)
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#define VPDMA_DATA_FRAME_1D (1 << 2)
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#define VPDMA_DATA_MODE_TILED (1 << 3)
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/*
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* client identifiers used for configuration descriptors
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*/
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#define CFD_MMR_CLIENT 0
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#define CFD_SC_CLIENT 4
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/* Address data block header format */
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struct vpdma_adb_hdr {
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u32 offset;
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u32 nwords;
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u32 reserved0;
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u32 reserved1;
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};
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/* helpers for creating ADB headers for config descriptors MMRs as client */
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#define ADB_ADDR(dma_buf, str, fld) ((dma_buf)->addr + offsetof(str, fld))
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#define MMR_ADB_ADDR(buf, str, fld) ADB_ADDR(&(buf), struct str, fld)
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#define VPDMA_SET_MMR_ADB_HDR(buf, str, hdr, regs, offset_a) \
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do { \
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struct vpdma_adb_hdr *h; \
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struct str *adb = NULL; \
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h = MMR_ADB_ADDR(buf, str, hdr); \
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h->offset = (offset_a); \
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h->nwords = sizeof(adb->regs) >> 2; \
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} while (0)
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/* vpdma descriptor buffer allocation and management */
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int vpdma_alloc_desc_buf(struct vpdma_buf *buf, size_t size);
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void vpdma_free_desc_buf(struct vpdma_buf *buf);
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int vpdma_map_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf);
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void vpdma_unmap_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf);
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/* vpdma descriptor list funcs */
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int vpdma_create_desc_list(struct vpdma_desc_list *list, size_t size, int type);
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void vpdma_reset_desc_list(struct vpdma_desc_list *list);
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void vpdma_free_desc_list(struct vpdma_desc_list *list);
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int vpdma_submit_descs(struct vpdma_data *vpdma, struct vpdma_desc_list *list);
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/* helpers for creating vpdma descriptors */
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void vpdma_add_cfd_block(struct vpdma_desc_list *list, int client,
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struct vpdma_buf *blk, u32 dest_offset);
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void vpdma_add_cfd_adb(struct vpdma_desc_list *list, int client,
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struct vpdma_buf *adb);
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void vpdma_add_sync_on_channel_ctd(struct vpdma_desc_list *list,
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enum vpdma_channel chan);
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void vpdma_add_out_dtd(struct vpdma_desc_list *list, int width,
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const struct v4l2_rect *c_rect,
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const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
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enum vpdma_channel chan, u32 flags);
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void vpdma_add_in_dtd(struct vpdma_desc_list *list, int width,
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const struct v4l2_rect *c_rect,
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const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
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enum vpdma_channel chan, int field, u32 flags, int frame_width,
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int frame_height, int start_h, int start_v);
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/* vpdma list interrupt management */
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void vpdma_enable_list_complete_irq(struct vpdma_data *vpdma, int list_num,
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bool enable);
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void vpdma_clear_list_stat(struct vpdma_data *vpdma);
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/* vpdma client configuration */
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void vpdma_set_line_mode(struct vpdma_data *vpdma, int line_mode,
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enum vpdma_channel chan);
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void vpdma_set_frame_start_event(struct vpdma_data *vpdma,
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enum vpdma_frame_start_event fs_event, enum vpdma_channel chan);
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void vpdma_dump_regs(struct vpdma_data *vpdma);
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/* initialize vpdma, passed with VPE's platform device pointer */
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struct vpdma_data *vpdma_create(struct platform_device *pdev,
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void (*cb)(struct platform_device *pdev));
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#endif
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