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/*
* EFI application disk support
*
* Copyright (c) 2016 Alexander Graf
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <efi_loader.h>
#include <inttypes.h>
#include <lcd.h>
#include <malloc.h>
DECLARE_GLOBAL_DATA_PTR;
static const efi_guid_t efi_gop_guid = EFI_GOP_GUID;
struct efi_gop_obj {
/* Generic EFI object parent class data */
struct efi_object parent;
/* EFI Interface callback struct for gop */
struct efi_gop ops;
/* The only mode we support */
struct efi_gop_mode_info info;
struct efi_gop_mode mode;
};
static efi_status_t EFIAPI gop_query_mode(struct efi_gop *this, u32 mode_number,
unsigned long *size_of_info,
struct efi_gop_mode_info **info)
{
struct efi_gop_obj *gopobj;
EFI_ENTRY("%p, %x, %p, %p", this, mode_number, size_of_info, info);
gopobj = container_of(this, struct efi_gop_obj, ops);
*size_of_info = sizeof(gopobj->info);
*info = &gopobj->info;
return EFI_EXIT(EFI_SUCCESS);
}
static efi_status_t EFIAPI gop_set_mode(struct efi_gop *this, u32 mode_number)
{
EFI_ENTRY("%p, %x", this, mode_number);
if (mode_number != 0)
return EFI_EXIT(EFI_INVALID_PARAMETER);
return EFI_EXIT(EFI_SUCCESS);
}
static efi_status_t EFIAPI gop_blt(struct efi_gop *this, void *buffer,
unsigned long operation, unsigned long sx,
unsigned long sy, unsigned long dx,
unsigned long dy, unsigned long width,
unsigned long height, unsigned long delta)
{
int i, j, line_len16, line_len32;
void *fb;
EFI_ENTRY("%p, %p, %lx, %lx, %lx, %lx, %lx, %lx, %lx, %lx", this,
buffer, operation, sx, sy, dx, dy, width, height, delta);
if (operation != EFI_BLT_BUFFER_TO_VIDEO)
return EFI_EXIT(EFI_INVALID_PARAMETER);
fb = (void*)gd->fb_base;
line_len16 = panel_info.vl_col * sizeof(u16);
line_len32 = panel_info.vl_col * sizeof(u32);
/* Copy the contents line by line */
switch (panel_info.vl_bpix) {
case LCD_COLOR32:
for (i = 0; i < height; i++) {
u32 *dest = fb + ((i + dy) * line_len32) +
(dx * sizeof(u32));
u32 *src = buffer + ((i + sy) * line_len32) +
(sx * sizeof(u32));
/* Same color format, just memcpy */
memcpy(dest, src, width * sizeof(u32));
}
break;
case LCD_COLOR16:
for (i = 0; i < height; i++) {
u16 *dest = fb + ((i + dy) * line_len16) +
(dx * sizeof(u16));
u32 *src = buffer + ((i + sy) * line_len32) +
(sx * sizeof(u32));
/* Convert from rgb888 to rgb565 */
for (j = 0; j < width; j++) {
u32 rgb888 = src[j];
dest[j] = ((((rgb888 >> (16 + 3)) & 0x1f) << 11) |
(((rgb888 >> (8 + 2)) & 0x3f) << 5) |
(((rgb888 >> (0 + 3)) & 0x1f) << 0));
}
}
break;
}
lcd_sync();
return EFI_EXIT(EFI_SUCCESS);
}
/* This gets called from do_bootefi_exec(). */
int efi_gop_register(void)
{
struct efi_gop_obj *gopobj;
switch (panel_info.vl_bpix) {
case LCD_COLOR32:
case LCD_COLOR16:
break;
default:
/* So far, we only work in 16 or 32 bit mode */
return -1;
}
gopobj = calloc(1, sizeof(*gopobj));
/* Fill in object data */
gopobj->parent.protocols[0].guid = &efi_gop_guid;
gopobj->parent.protocols[0].open = efi_return_handle;
gopobj->parent.handle = &gopobj->ops;
gopobj->ops.query_mode = gop_query_mode;
gopobj->ops.set_mode = gop_set_mode;
gopobj->ops.blt = gop_blt;
gopobj->ops.mode = &gopobj->mode;
gopobj->mode.max_mode = 1;
gopobj->mode.info = &gopobj->info;
gopobj->mode.info_size = sizeof(gopobj->info);
gopobj->info.version = 0;
gopobj->info.width = panel_info.vl_col;
gopobj->info.height = panel_info.vl_row;
gopobj->info.pixel_format = EFI_GOT_RGBA8;
gopobj->info.pixels_per_scanline = panel_info.vl_col;
/* Hook up to the device list */
list_add_tail(&gopobj->parent.link, &efi_obj_list);
return 0;
}
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