1 /* 2 * EFI application disk support 3 * 4 * Copyright (c) 2016 Alexander Graf 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <common.h> 10 #include <dm.h> 11 #include <efi_loader.h> 12 #include <inttypes.h> 13 #include <lcd.h> 14 #include <malloc.h> 15 #include <video.h> 16 17 DECLARE_GLOBAL_DATA_PTR; 18 19 static const efi_guid_t efi_gop_guid = EFI_GOP_GUID; 20 21 struct efi_gop_obj { 22 /* Generic EFI object parent class data */ 23 struct efi_object parent; 24 /* EFI Interface callback struct for gop */ 25 struct efi_gop ops; 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 */ 30 u32 bpix; 31 void *fb; 32 }; 33 34 static efi_status_t EFIAPI gop_query_mode(struct efi_gop *this, u32 mode_number, 35 unsigned long *size_of_info, 36 struct efi_gop_mode_info **info) 37 { 38 struct efi_gop_obj *gopobj; 39 40 EFI_ENTRY("%p, %x, %p, %p", this, mode_number, size_of_info, info); 41 42 gopobj = container_of(this, struct efi_gop_obj, ops); 43 *size_of_info = sizeof(gopobj->info); 44 *info = &gopobj->info; 45 46 return EFI_EXIT(EFI_SUCCESS); 47 } 48 49 static efi_status_t EFIAPI gop_set_mode(struct efi_gop *this, u32 mode_number) 50 { 51 EFI_ENTRY("%p, %x", this, mode_number); 52 53 if (mode_number != 0) 54 return EFI_EXIT(EFI_INVALID_PARAMETER); 55 56 return EFI_EXIT(EFI_SUCCESS); 57 } 58 59 static efi_status_t EFIAPI gop_blt(struct efi_gop *this, void *buffer, 60 unsigned long operation, unsigned long sx, 61 unsigned long sy, unsigned long dx, 62 unsigned long dy, unsigned long width, 63 unsigned long height, unsigned long delta) 64 { 65 struct efi_gop_obj *gopobj = container_of(this, struct efi_gop_obj, ops); 66 int i, j, line_len16, line_len32; 67 void *fb; 68 69 EFI_ENTRY("%p, %p, %lx, %lx, %lx, %lx, %lx, %lx, %lx, %lx", this, 70 buffer, operation, sx, sy, dx, dy, width, height, delta); 71 72 if (operation != EFI_BLT_BUFFER_TO_VIDEO) 73 return EFI_EXIT(EFI_INVALID_PARAMETER); 74 75 fb = gopobj->fb; 76 line_len16 = gopobj->info.width * sizeof(u16); 77 line_len32 = gopobj->info.width * sizeof(u32); 78 79 /* Copy the contents line by line */ 80 81 switch (gopobj->bpix) { 82 #ifdef CONFIG_DM_VIDEO 83 case VIDEO_BPP32: 84 #else 85 case LCD_COLOR32: 86 #endif 87 for (i = 0; i < height; i++) { 88 u32 *dest = fb + ((i + dy) * line_len32) + 89 (dx * sizeof(u32)); 90 u32 *src = buffer + ((i + sy) * line_len32) + 91 (sx * sizeof(u32)); 92 93 /* Same color format, just memcpy */ 94 memcpy(dest, src, width * sizeof(u32)); 95 } 96 break; 97 #ifdef CONFIG_DM_VIDEO 98 case VIDEO_BPP16: 99 #else 100 case LCD_COLOR16: 101 #endif 102 for (i = 0; i < height; i++) { 103 u16 *dest = fb + ((i + dy) * line_len16) + 104 (dx * sizeof(u16)); 105 u32 *src = buffer + ((i + sy) * line_len32) + 106 (sx * sizeof(u32)); 107 108 /* Convert from rgb888 to rgb565 */ 109 for (j = 0; j < width; j++) { 110 u32 rgb888 = src[j]; 111 dest[j] = ((((rgb888 >> (16 + 3)) & 0x1f) << 11) | 112 (((rgb888 >> (8 + 2)) & 0x3f) << 5) | 113 (((rgb888 >> (0 + 3)) & 0x1f) << 0)); 114 } 115 } 116 break; 117 } 118 119 #ifdef CONFIG_DM_VIDEO 120 video_sync_all(); 121 #else 122 lcd_sync(); 123 #endif 124 125 return EFI_EXIT(EFI_SUCCESS); 126 } 127 128 /* This gets called from do_bootefi_exec(). */ 129 int efi_gop_register(void) 130 { 131 struct efi_gop_obj *gopobj; 132 u32 bpix, col, row; 133 u64 fb_base, fb_size; 134 void *fb; 135 136 #ifdef CONFIG_DM_VIDEO 137 struct udevice *vdev; 138 139 /* We only support a single video output device for now */ 140 if (uclass_first_device(UCLASS_VIDEO, &vdev) || !vdev) 141 return -1; 142 143 struct video_priv *priv = dev_get_uclass_priv(vdev); 144 bpix = priv->bpix; 145 col = video_get_xsize(vdev); 146 row = video_get_ysize(vdev); 147 fb_base = (uintptr_t)priv->fb; 148 fb_size = priv->fb_size; 149 fb = priv->fb; 150 #else 151 int line_len; 152 153 bpix = panel_info.vl_bpix; 154 col = panel_info.vl_col; 155 row = panel_info.vl_row; 156 fb_base = gd->fb_base; 157 fb_size = lcd_get_size(&line_len); 158 fb = (void*)gd->fb_base; 159 #endif 160 161 switch (bpix) { 162 #ifdef CONFIG_DM_VIDEO 163 case VIDEO_BPP16: 164 case VIDEO_BPP32: 165 #else 166 case LCD_COLOR32: 167 case LCD_COLOR16: 168 #endif 169 break; 170 default: 171 /* So far, we only work in 16 or 32 bit mode */ 172 return -1; 173 } 174 175 gopobj = calloc(1, sizeof(*gopobj)); 176 177 /* Fill in object data */ 178 gopobj->parent.protocols[0].guid = &efi_gop_guid; 179 gopobj->parent.protocols[0].protocol_interface = &gopobj->ops; 180 gopobj->parent.handle = &gopobj->ops; 181 gopobj->ops.query_mode = gop_query_mode; 182 gopobj->ops.set_mode = gop_set_mode; 183 gopobj->ops.blt = gop_blt; 184 gopobj->ops.mode = &gopobj->mode; 185 186 gopobj->mode.max_mode = 1; 187 gopobj->mode.info = &gopobj->info; 188 gopobj->mode.info_size = sizeof(gopobj->info); 189 190 #ifdef CONFIG_DM_VIDEO 191 if (bpix == VIDEO_BPP32) { 192 #else 193 if (bpix == LCD_COLOR32) { 194 #endif 195 /* With 32bit color space we can directly expose the fb */ 196 gopobj->mode.fb_base = fb_base; 197 gopobj->mode.fb_size = fb_size; 198 } 199 200 gopobj->info.version = 0; 201 gopobj->info.width = col; 202 gopobj->info.height = row; 203 gopobj->info.pixel_format = EFI_GOT_RGBA8; 204 gopobj->info.pixels_per_scanline = col; 205 206 gopobj->bpix = bpix; 207 gopobj->fb = fb; 208 209 /* Hook up to the device list */ 210 list_add_tail(&gopobj->parent.link, &efi_obj_list); 211 212 return 0; 213 } 214