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-rw-r--r--include/pci_rom.h58
1 files changed, 58 insertions, 0 deletions
diff --git a/include/pci_rom.h b/include/pci_rom.h
new file mode 100644
index 0000000..8b2674c
--- /dev/null
+++ b/include/pci_rom.h
@@ -0,0 +1,58 @@
+/*
+ * From coreboot file of same name
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _PCI_ROM_H
+#define _PCI_ROM_H
+
+#define PCI_ROM_HDR 0xaa55
+#define PCI_VGA_RAM_IMAGE_START 0xc0000
+
+struct pci_rom_header {
+ uint16_t signature;
+ uint8_t size;
+ uint8_t init[3];
+ uint8_t reserved[0x12];
+ uint16_t data;
+};
+
+struct pci_rom_data {
+ uint32_t signature;
+ uint16_t vendor;
+ uint16_t device;
+ uint16_t reserved_1;
+ uint16_t dlen;
+ uint8_t drevision;
+ uint8_t class_lo;
+ uint16_t class_hi;
+ uint16_t ilen;
+ uint16_t irevision;
+ uint8_t type;
+ uint8_t indicator;
+ uint16_t reserved_2;
+};
+
+ /**
+ * pci_run_vga_bios() - Run the VGA BIOS in an x86 PC
+ *
+ * @dev: Video device containing the BIOS
+ * @int15_handler: Function to call to handle int 0x15
+ * @emulate: true to use the x86 emulator, false to run native
+ */
+int pci_run_vga_bios(pci_dev_t dev, int (*int15_handler)(void), bool emulate);
+
+/**
+ * board_map_oprom_vendev() - map several PCI IDs to the one the ROM expects
+ *
+ * Some VGA option roms are used for several chipsets but they only have one
+ * PCI ID in their header. If we encounter such an option rom, we need to do
+ * the mapping ourselves.
+ *
+ * @vendev: Vendor and device for the video device
+ * @return standard vendor and device expected by the ROM
+ */
+uint32_t board_map_oprom_vendev(uint32_t vendev);
+
+#endif