2 * EFI application disk support
4 * Copyright (c) 2016 Alexander Graf
6 * SPDX-License-Identifier: GPL-2.0+
11 #include <efi_loader.h>
17 DECLARE_GLOBAL_DATA_PTR;
19 static const efi_guid_t efi_gop_guid = EFI_GOP_GUID;
22 /* Generic EFI object parent class data */
23 struct efi_object parent;
24 /* EFI Interface callback struct for gop */
26 /* The only mode we support */
27 struct efi_gop_mode_info info;
28 struct efi_gop_mode mode;
29 /* Fields we only have acces to during init */
34 static efi_status_t EFIAPI gop_query_mode(struct efi_gop *this, u32 mode_number,
35 efi_uintn_t *size_of_info,
36 struct efi_gop_mode_info **info)
38 struct efi_gop_obj *gopobj;
40 EFI_ENTRY("%p, %x, %p, %p", this, mode_number, size_of_info, info);
42 gopobj = container_of(this, struct efi_gop_obj, ops);
43 *size_of_info = sizeof(gopobj->info);
44 *info = &gopobj->info;
46 return EFI_EXIT(EFI_SUCCESS);
49 static efi_status_t EFIAPI gop_set_mode(struct efi_gop *this, u32 mode_number)
51 EFI_ENTRY("%p, %x", this, mode_number);
54 return EFI_EXIT(EFI_INVALID_PARAMETER);
56 return EFI_EXIT(EFI_SUCCESS);
59 efi_status_t EFIAPI gop_blt(struct efi_gop *this, void *buffer,
60 u32 operation, efi_uintn_t sx,
61 efi_uintn_t sy, efi_uintn_t dx,
62 efi_uintn_t dy, efi_uintn_t width,
63 efi_uintn_t height, efi_uintn_t delta)
65 struct efi_gop_obj *gopobj = container_of(this, struct efi_gop_obj, ops);
66 int i, j, line_len16, line_len32;
69 EFI_ENTRY("%p, %p, %u, %zu, %zu, %zu, %zu, %zu, %zu, %zu", this,
70 buffer, operation, sx, sy, dx, dy, width, height, delta);
72 if (operation != EFI_BLT_BUFFER_TO_VIDEO)
73 return EFI_EXIT(EFI_INVALID_PARAMETER);
76 line_len16 = gopobj->info.width * sizeof(u16);
77 line_len32 = gopobj->info.width * sizeof(u32);
79 /* Copy the contents line by line */
81 switch (gopobj->bpix) {
82 #ifdef CONFIG_DM_VIDEO
87 for (i = 0; i < height; i++) {
88 u32 *dest = fb + ((i + dy) * line_len32) +
90 u32 *src = buffer + ((i + sy) * line_len32) +
93 /* Same color format, just memcpy */
94 memcpy(dest, src, width * sizeof(u32));
97 #ifdef CONFIG_DM_VIDEO
102 for (i = 0; i < height; i++) {
103 u16 *dest = fb + ((i + dy) * line_len16) +
105 u32 *src = buffer + ((i + sy) * line_len32) +
108 /* Convert from rgb888 to rgb565 */
109 for (j = 0; j < width; j++) {
111 dest[j] = ((((rgb888 >> (16 + 3)) & 0x1f) << 11) |
112 (((rgb888 >> (8 + 2)) & 0x3f) << 5) |
113 (((rgb888 >> (0 + 3)) & 0x1f) << 0));
119 #ifdef CONFIG_DM_VIDEO
125 return EFI_EXIT(EFI_SUCCESS);
129 * Install graphical output protocol.
131 * If no supported video device exists this is not considered as an
134 efi_status_t efi_gop_register(void)
136 struct efi_gop_obj *gopobj;
138 u64 fb_base, fb_size;
142 #ifdef CONFIG_DM_VIDEO
143 struct udevice *vdev;
144 struct video_priv *priv;
146 /* We only support a single video output device for now */
147 if (uclass_first_device(UCLASS_VIDEO, &vdev) || !vdev) {
148 debug("WARNING: No video device\n");
152 priv = dev_get_uclass_priv(vdev);
154 col = video_get_xsize(vdev);
155 row = video_get_ysize(vdev);
156 fb_base = (uintptr_t)priv->fb;
157 fb_size = priv->fb_size;
162 bpix = panel_info.vl_bpix;
163 col = panel_info.vl_col;
164 row = panel_info.vl_row;
165 fb_base = gd->fb_base;
166 fb_size = lcd_get_size(&line_len);
167 fb = (void*)gd->fb_base;
171 #ifdef CONFIG_DM_VIDEO
180 /* So far, we only work in 16 or 32 bit mode */
181 debug("WARNING: Unsupported video mode\n");
185 gopobj = calloc(1, sizeof(*gopobj));
187 printf("ERROR: Out of memory\n");
188 return EFI_OUT_OF_RESOURCES;
191 /* Hook up to the device list */
192 efi_add_handle(&gopobj->parent);
194 /* Fill in object data */
195 ret = efi_add_protocol(gopobj->parent.handle, &efi_gop_guid,
197 if (ret != EFI_SUCCESS) {
198 printf("ERROR: Failure adding gop protocol\n");
201 gopobj->ops.query_mode = gop_query_mode;
202 gopobj->ops.set_mode = gop_set_mode;
203 gopobj->ops.blt = gop_blt;
204 gopobj->ops.mode = &gopobj->mode;
206 gopobj->mode.max_mode = 1;
207 gopobj->mode.info = &gopobj->info;
208 gopobj->mode.info_size = sizeof(gopobj->info);
210 #ifdef CONFIG_DM_VIDEO
211 if (bpix == VIDEO_BPP32)
213 if (bpix == LCD_COLOR32)
216 /* With 32bit color space we can directly expose the fb */
217 gopobj->mode.fb_base = fb_base;
218 gopobj->mode.fb_size = fb_size;
221 gopobj->info.version = 0;
222 gopobj->info.width = col;
223 gopobj->info.height = row;
224 gopobj->info.pixel_format = EFI_GOT_RGBA8;
225 gopobj->info.pixels_per_scanline = col;