mirror of
https://github.com/AsahiLinux/u-boot
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0e0a3ceb50
With the patch all block image transfer operations of the EFI_GRAPHICS_OUTPUT_PROTOCOL are supported. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Alexander Graf <agraf@suse.de>
317 lines
7 KiB
C
317 lines
7 KiB
C
/*
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* EFI application disk support
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*
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* Copyright (c) 2016 Alexander Graf
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <efi_loader.h>
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#include <inttypes.h>
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#include <lcd.h>
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#include <malloc.h>
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#include <video.h>
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DECLARE_GLOBAL_DATA_PTR;
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static const efi_guid_t efi_gop_guid = EFI_GOP_GUID;
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struct efi_gop_obj {
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/* Generic EFI object parent class data */
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struct efi_object parent;
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/* EFI Interface callback struct for gop */
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struct efi_gop ops;
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/* The only mode we support */
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struct efi_gop_mode_info info;
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struct efi_gop_mode mode;
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/* Fields we only have acces to during init */
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u32 bpix;
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void *fb;
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};
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static efi_status_t EFIAPI gop_query_mode(struct efi_gop *this, u32 mode_number,
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efi_uintn_t *size_of_info,
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struct efi_gop_mode_info **info)
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{
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struct efi_gop_obj *gopobj;
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EFI_ENTRY("%p, %x, %p, %p", this, mode_number, size_of_info, info);
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gopobj = container_of(this, struct efi_gop_obj, ops);
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*size_of_info = sizeof(gopobj->info);
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*info = &gopobj->info;
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return EFI_EXIT(EFI_SUCCESS);
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}
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static efi_status_t EFIAPI gop_set_mode(struct efi_gop *this, u32 mode_number)
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{
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EFI_ENTRY("%p, %x", this, mode_number);
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if (mode_number != 0)
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return EFI_EXIT(EFI_INVALID_PARAMETER);
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return EFI_EXIT(EFI_SUCCESS);
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}
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static inline struct efi_gop_pixel efi_vid16_to_blt_col(u16 vid)
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{
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struct efi_gop_pixel blt = {
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.reserved = 0,
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};
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blt.blue = (vid & 0x1f) << 3;
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vid >>= 5;
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blt.green = (vid & 0x3f) << 2;
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vid >>= 6;
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blt.red = (vid & 0x1f) << 3;
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return blt;
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}
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static inline u16 efi_blt_col_to_vid16(struct efi_gop_pixel *blt)
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{
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return (u16)(blt->red >> 3) << 11 |
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(u16)(blt->green >> 2) << 5 |
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(u16)(blt->blue >> 3);
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}
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efi_status_t EFIAPI gop_blt(struct efi_gop *this, struct efi_gop_pixel *buffer,
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u32 operation, efi_uintn_t sx,
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efi_uintn_t sy, efi_uintn_t dx,
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efi_uintn_t dy, efi_uintn_t width,
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efi_uintn_t height, efi_uintn_t delta)
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{
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struct efi_gop_obj *gopobj = container_of(this, struct efi_gop_obj, ops);
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efi_uintn_t i, j, linelen;
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u32 *fb32 = gopobj->fb;
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u16 *fb16 = gopobj->fb;
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if (delta)
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linelen = delta;
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else
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linelen = width;
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EFI_ENTRY("%p, %p, %u, %zu, %zu, %zu, %zu, %zu, %zu, %zu", this,
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buffer, operation, sx, sy, dx, dy, width, height, delta);
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/* Check source rectangle */
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switch (operation) {
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case EFI_BLT_VIDEO_FILL:
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break;
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case EFI_BLT_BUFFER_TO_VIDEO:
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if (sx + width > linelen)
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return EFI_EXIT(EFI_INVALID_PARAMETER);
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break;
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case EFI_BLT_VIDEO_TO_BLT_BUFFER:
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case EFI_BLT_VIDEO_TO_VIDEO:
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if (sx + width > gopobj->info.width ||
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sy + height > gopobj->info.height)
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return EFI_EXIT(EFI_INVALID_PARAMETER);
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break;
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default:
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return EFI_EXIT(EFI_INVALID_PARAMETER);
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}
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/* Check destination rectangle */
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switch (operation) {
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case EFI_BLT_VIDEO_FILL:
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case EFI_BLT_BUFFER_TO_VIDEO:
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case EFI_BLT_VIDEO_TO_VIDEO:
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if (dx + width > gopobj->info.width ||
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dy + height > gopobj->info.height)
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return EFI_EXIT(EFI_INVALID_PARAMETER);
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break;
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case EFI_BLT_VIDEO_TO_BLT_BUFFER:
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if (dx + width > linelen)
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return EFI_EXIT(EFI_INVALID_PARAMETER);
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break;
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}
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for (i = 0; i < height; i++) {
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for (j = 0; j < width; j++) {
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struct efi_gop_pixel pix;
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/* Read source pixel */
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switch (operation) {
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case EFI_BLT_VIDEO_FILL:
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pix = *buffer;
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break;
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case EFI_BLT_BUFFER_TO_VIDEO:
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pix = buffer[linelen * (i + sy) + j + sx];
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break;
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case EFI_BLT_VIDEO_TO_BLT_BUFFER:
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case EFI_BLT_VIDEO_TO_VIDEO:
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switch (gopobj->bpix) {
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#ifdef CONFIG_DM_VIDEO
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case VIDEO_BPP32:
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#else
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case LCD_COLOR32:
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#endif
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pix = *(struct efi_gop_pixel *)&fb32[
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gopobj->info.width *
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(i + sy) + j + sx];
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break;
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#ifdef CONFIG_DM_VIDEO
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case VIDEO_BPP16:
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#else
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case LCD_COLOR16:
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#endif
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pix = efi_vid16_to_blt_col(fb16[
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gopobj->info.width *
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(i + sy) + j + sx]);
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break;
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default:
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return EFI_EXIT(EFI_UNSUPPORTED);
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}
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break;
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}
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/* Write destination pixel */
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switch (operation) {
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case EFI_BLT_VIDEO_TO_BLT_BUFFER:
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buffer[linelen * (i + dy) + j + dx] = pix;
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break;
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case EFI_BLT_BUFFER_TO_VIDEO:
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case EFI_BLT_VIDEO_FILL:
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case EFI_BLT_VIDEO_TO_VIDEO:
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switch (gopobj->bpix) {
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#ifdef CONFIG_DM_VIDEO
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case VIDEO_BPP32:
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#else
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case LCD_COLOR32:
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#endif
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fb32[gopobj->info.width *
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(i + dy) + j + dx] = *(u32 *)&pix;
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break;
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#ifdef CONFIG_DM_VIDEO
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case VIDEO_BPP16:
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#else
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case LCD_COLOR16:
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#endif
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fb16[gopobj->info.width *
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(i + dy) + j + dx] =
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efi_blt_col_to_vid16(&pix);
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break;
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default:
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return EFI_EXIT(EFI_UNSUPPORTED);
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}
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break;
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}
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}
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}
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#ifdef CONFIG_DM_VIDEO
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video_sync_all();
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#else
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lcd_sync();
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#endif
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return EFI_EXIT(EFI_SUCCESS);
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}
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/*
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* Install graphical output protocol.
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*
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* If no supported video device exists this is not considered as an
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* error.
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*/
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efi_status_t efi_gop_register(void)
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{
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struct efi_gop_obj *gopobj;
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u32 bpix, col, row;
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u64 fb_base, fb_size;
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void *fb;
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efi_status_t ret;
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#ifdef CONFIG_DM_VIDEO
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struct udevice *vdev;
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struct video_priv *priv;
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/* We only support a single video output device for now */
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if (uclass_first_device(UCLASS_VIDEO, &vdev) || !vdev) {
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debug("WARNING: No video device\n");
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return EFI_SUCCESS;
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}
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priv = dev_get_uclass_priv(vdev);
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bpix = priv->bpix;
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col = video_get_xsize(vdev);
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row = video_get_ysize(vdev);
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fb_base = (uintptr_t)priv->fb;
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fb_size = priv->fb_size;
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fb = priv->fb;
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#else
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int line_len;
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bpix = panel_info.vl_bpix;
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col = panel_info.vl_col;
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row = panel_info.vl_row;
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fb_base = gd->fb_base;
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fb_size = lcd_get_size(&line_len);
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fb = (void*)gd->fb_base;
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#endif
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switch (bpix) {
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#ifdef CONFIG_DM_VIDEO
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case VIDEO_BPP16:
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case VIDEO_BPP32:
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#else
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case LCD_COLOR32:
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case LCD_COLOR16:
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#endif
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break;
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default:
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/* So far, we only work in 16 or 32 bit mode */
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debug("WARNING: Unsupported video mode\n");
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return EFI_SUCCESS;
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}
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gopobj = calloc(1, sizeof(*gopobj));
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if (!gopobj) {
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printf("ERROR: Out of memory\n");
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return EFI_OUT_OF_RESOURCES;
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}
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/* Hook up to the device list */
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efi_add_handle(&gopobj->parent);
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/* Fill in object data */
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ret = efi_add_protocol(gopobj->parent.handle, &efi_gop_guid,
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&gopobj->ops);
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if (ret != EFI_SUCCESS) {
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printf("ERROR: Failure adding gop protocol\n");
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return ret;
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}
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gopobj->ops.query_mode = gop_query_mode;
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gopobj->ops.set_mode = gop_set_mode;
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gopobj->ops.blt = gop_blt;
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gopobj->ops.mode = &gopobj->mode;
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gopobj->mode.max_mode = 1;
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gopobj->mode.info = &gopobj->info;
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gopobj->mode.info_size = sizeof(gopobj->info);
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#ifdef CONFIG_DM_VIDEO
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if (bpix == VIDEO_BPP32)
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#else
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if (bpix == LCD_COLOR32)
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#endif
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{
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/* With 32bit color space we can directly expose the fb */
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gopobj->mode.fb_base = fb_base;
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gopobj->mode.fb_size = fb_size;
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}
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gopobj->info.version = 0;
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gopobj->info.width = col;
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gopobj->info.height = row;
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gopobj->info.pixel_format = EFI_GOT_RGBA8;
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gopobj->info.pixels_per_scanline = col;
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gopobj->bpix = bpix;
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gopobj->fb = fb;
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return EFI_SUCCESS;
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}
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