upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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261 lines
6.4 KiB
261 lines
6.4 KiB
/*
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* Video uclass and legacy implementation
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*
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* Copyright (c) 2015 Google, Inc
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*
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* MPC823 Video Controller
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* =======================
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* (C) 2000 by Paolo Scaffardi (arsenio@tin.it)
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* AIRVENT SAM s.p.a - RIMINI(ITALY)
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*
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*/
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#ifndef _VIDEO_H_
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#define _VIDEO_H_
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#ifdef CONFIG_DM_VIDEO
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#include <stdio_dev.h>
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struct video_uc_platdata {
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uint align;
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uint size;
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ulong base;
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};
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enum video_polarity {
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VIDEO_ACTIVE_HIGH, /* Pins are active high */
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VIDEO_ACTIVE_LOW, /* Pins are active low */
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};
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/*
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* Bits per pixel selector. Each value n is such that the bits-per-pixel is
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* 2 ^ n
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*/
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enum video_log2_bpp {
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VIDEO_BPP1 = 0,
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VIDEO_BPP2,
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VIDEO_BPP4,
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VIDEO_BPP8,
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VIDEO_BPP16,
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VIDEO_BPP32,
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};
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/*
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* Convert enum video_log2_bpp to bytes and bits. Note we omit the outer
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* brackets to allow multiplication by fractional pixels.
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*/
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#define VNBYTES(bpix) (1 << (bpix)) / 8
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#define VNBITS(bpix) (1 << (bpix))
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/**
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* struct video_priv - Device information used by the video uclass
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*
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* @xsize: Number of pixel columns (e.g. 1366)
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* @ysize: Number of pixels rows (e.g.. 768)
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* @rot: Display rotation (0=none, 1=90 degrees clockwise, etc.)
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* @bpix: Encoded bits per pixel
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* @vidconsole_drv_name: Driver to use for the text console, NULL to
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* select automatically
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* @font_size: Font size in pixels (0 to use a default value)
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* @fb: Frame buffer
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* @fb_size: Frame buffer size
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* @line_length: Length of each frame buffer line, in bytes
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* @colour_fg: Foreground colour (pixel value)
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* @colour_bg: Background colour (pixel value)
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* @flush_dcache: true to enable flushing of the data cache after
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* the LCD is updated
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* @cmap: Colour map for 8-bit-per-pixel displays
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*/
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struct video_priv {
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/* Things set up by the driver: */
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ushort xsize;
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ushort ysize;
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ushort rot;
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enum video_log2_bpp bpix;
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const char *vidconsole_drv_name;
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int font_size;
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/*
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* Things that are private to the uclass: don't use these in the
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* driver
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*/
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void *fb;
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int fb_size;
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int line_length;
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int colour_fg;
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int colour_bg;
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bool flush_dcache;
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ushort *cmap;
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};
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/* Placeholder - there are no video operations at present */
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struct video_ops {
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};
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#define video_get_ops(dev) ((struct video_ops *)(dev)->driver->ops)
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/**
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* video_reserve() - Reserve frame-buffer memory for video devices
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*
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* Note: This function is for internal use.
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*
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* This uses the uclass platdata's @size and @align members to figure out
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* a size and position for each frame buffer as part of the pre-relocation
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* process of determining the post-relocation memory layout.
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*
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* gd->video_top is set to the initial value of *@addrp and gd->video_bottom
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* is set to the final value.
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*
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* @addrp: On entry, the top of available memory. On exit, the new top,
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* after allocating the required memory.
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* @return 0
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*/
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int video_reserve(ulong *addrp);
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/**
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* video_sync() - Sync a device's frame buffer with its hardware
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*
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* Some frame buffers are cached or have a secondary frame buffer. This
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* function syncs these up so that the current contents of the U-Boot frame
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* buffer are displayed to the user.
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*
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* @dev: Device to sync
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*/
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void video_sync(struct udevice *vid);
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/**
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* video_sync_all() - Sync all devices' frame buffers with there hardware
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*
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* This calls video_sync() on all active video devices.
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*/
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void video_sync_all(void);
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/**
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* video_bmp_display() - Display a BMP file
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*
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* @dev: Device to display the bitmap on
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* @bmp_image: Address of bitmap image to display
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* @x: X position in pixels from the left
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* @y: Y position in pixels from the top
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* @align: true to adjust the coordinates to centre the image. If false
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* the coordinates are used as is. If true:
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*
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* - if a coordinate is 0x7fff then the image will be centred in
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* that direction
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* - if a coordinate is -ve then it will be offset to the
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* left/top of the centre by that many pixels
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* - if a coordinate is positive it will be used unchnaged.
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* @return 0 if OK, -ve on error
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*/
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int video_bmp_display(struct udevice *dev, ulong bmp_image, int x, int y,
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bool align);
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/**
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* video_get_xsize() - Get the width of the display in pixels
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*
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* @dev: Device to check
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* @return device frame buffer width in pixels
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*/
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int video_get_xsize(struct udevice *dev);
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/**
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* video_get_ysize() - Get the height of the display in pixels
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*
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* @dev: Device to check
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* @return device frame buffer height in pixels
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*/
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int video_get_ysize(struct udevice *dev);
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/**
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* Set whether we need to flush the dcache when changing the image. This
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* defaults to off.
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*
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* @param flush non-zero to flush cache after update, 0 to skip
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*/
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void video_set_flush_dcache(struct udevice *dev, bool flush);
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#endif /* CONFIG_DM_VIDEO */
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#ifndef CONFIG_DM_VIDEO
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/* Video functions */
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struct stdio_dev;
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int video_init(void *videobase);
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void video_putc(struct stdio_dev *dev, const char c);
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void video_puts(struct stdio_dev *dev, const char *s);
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/**
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* Display a BMP format bitmap on the screen
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*
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* @param bmp_image Address of BMP image
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* @param x X position to draw image
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* @param y Y position to draw image
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*/
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int video_display_bitmap(ulong bmp_image, int x, int y);
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/**
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* Get the width of the screen in pixels
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*
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* @return width of screen in pixels
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*/
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int video_get_pixel_width(void);
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/**
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* Get the height of the screen in pixels
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*
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* @return height of screen in pixels
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*/
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int video_get_pixel_height(void);
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/**
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* Get the number of text lines/rows on the screen
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*
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* @return number of rows
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*/
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int video_get_screen_rows(void);
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/**
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* Get the number of text columns on the screen
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*
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* @return number of columns
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*/
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int video_get_screen_columns(void);
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/**
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* Set the position of the text cursor
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*
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* @param col Column to place cursor (0 = left side)
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* @param row Row to place cursor (0 = top line)
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*/
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void video_position_cursor(unsigned col, unsigned row);
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/* Clear the display */
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void video_clear(void);
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#if defined(CONFIG_FORMIKE)
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int kwh043st20_f01_spi_startup(unsigned int bus, unsigned int cs,
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unsigned int max_hz, unsigned int spi_mode);
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#endif
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#if defined(CONFIG_LG4573)
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int lg4573_spi_startup(unsigned int bus, unsigned int cs,
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unsigned int max_hz, unsigned int spi_mode);
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#endif
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/*
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* video_get_info_str() - obtain a board string: type, speed, etc.
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*
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* This is called if CONFIG_CONSOLE_EXTRA_INFO is enabled.
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*
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* line_number: location to place info string beside logo
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* info: buffer for info string (empty if nothing to display on this
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* line)
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*/
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void video_get_info_str(int line_number, char *info);
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#endif /* CONFIG_DM_VIDEO */
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#endif
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