diff options
Diffstat (limited to 'src/drivers/intel/fsp1_1/fsp_gop.c')
| -rw-r--r-- | src/drivers/intel/fsp1_1/fsp_gop.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/src/drivers/intel/fsp1_1/fsp_gop.c b/src/drivers/intel/fsp1_1/fsp_gop.c new file mode 100644 index 0000000000..cf781cdea7 --- /dev/null +++ b/src/drivers/intel/fsp1_1/fsp_gop.c @@ -0,0 +1,101 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Intel Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <cbfs.h> +#include <console/console.h> +#include "fsp_util.h" +#include <lib.h> + +/* Reading VBT table from flash */ +const optionrom_vbt_t *fsp_get_vbt(uint32_t *vbt_len) +{ + struct cbfs_file *vbt_file; + union { + const optionrom_vbt_t *data; + uint32_t *signature; + } vbt; + + /* Locate the vbt file in cbfs */ + vbt_file = cbfs_get_file(CBFS_DEFAULT_MEDIA, "vbt.bin"); + if (!vbt_file) { + printk(BIOS_INFO, + "FSP_INFO: VBT data file (vbt.bin) not found in CBFS"); + return NULL; + } + + /* Validate the vbt file */ + vbt.data = CBFS_SUBHEADER(vbt_file); + if (*vbt.signature != VBT_SIGNATURE) { + printk(BIOS_WARNING, + "FSP_WARNING: Invalid signature in VBT data file (vbt.bin)!\n"); + return NULL; + } + *vbt_len = ntohl(vbt_file->len); + printk(BIOS_DEBUG, "FSP_INFO: VBT found at %p, 0x%08x bytes\n", + vbt.data, *vbt_len); + +#if IS_ENABLED(CONFIG_DISPLAY_VBT) + /* Display the vbt file contents */ + printk(BIOS_DEBUG, "VBT Data:\n"); + hexdump(vbt.data, *vbt_len); + printk(BIOS_DEBUG, "\n"); +#endif + + /* Return the pointer to the vbt file data */ + return vbt.data; +} + +#if ENV_RAMSTAGE +void fsp_gop_framebuffer(struct lb_header *header) +{ + struct lb_framebuffer *framebuffer; + framebuffer = (struct lb_framebuffer *)lb_new_record(header); + + VOID *hob_list_ptr; + hob_list_ptr = get_hob_list(); + const EFI_GUID vbt_guid = EFI_PEI_GRAPHICS_INFO_HOB_GUID; + u32 *vbt_hob; + EFI_PEI_GRAPHICS_INFO_HOB *vbt_gop; + vbt_hob = get_next_guid_hob(&vbt_guid, hob_list_ptr); + if (vbt_hob == NULL) { + printk(BIOS_ERR, "FSP_ERR: Graphics Data HOB is not present\n"); + return; + } else { + printk(BIOS_DEBUG, "FSP_DEBUG: Graphics Data HOB present\n"); + vbt_gop = GET_GUID_HOB_DATA(vbt_hob); + } + + framebuffer->physical_address = vbt_gop->FrameBufferBase; + framebuffer->x_resolution = vbt_gop->GraphicsMode.HorizontalResolution; + framebuffer->y_resolution = vbt_gop->GraphicsMode.VerticalResolution; + framebuffer->bytes_per_line = vbt_gop->GraphicsMode.PixelsPerScanLine + * 4; + framebuffer->bits_per_pixel = 32; + framebuffer->red_mask_pos = 16; + framebuffer->red_mask_size = 8; + framebuffer->green_mask_pos = 8; + framebuffer->green_mask_size = 8; + framebuffer->blue_mask_pos = 0; + framebuffer->blue_mask_size = 8; + framebuffer->reserved_mask_pos = 24; + framebuffer->reserved_mask_size = 8; + framebuffer->tag = LB_TAG_FRAMEBUFFER; + framebuffer->size = sizeof(*framebuffer); +} +#endif /* ENV_RAMSTAGE */ |