/* * Definitions for PCDP-defined console devices * * v1.0a: http://www.dig64.org/specifications/DIG64_HCDPv10a_01.pdf * v2.0: http://www.dig64.org/specifications/DIG64_PCDPv20.pdf * * (c) Copyright 2002, 2004 Hewlett-Packard Development Company, L.P. * Khalid Aziz <khalid.aziz@hp.com> * Bjorn Helgaas <bjorn.helgaas@hp.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #define PCDP_CONSOLE 0 #define PCDP_DEBUG 1 #define PCDP_CONSOLE_OUTPUT 2 #define PCDP_CONSOLE_INPUT 3 #define PCDP_UART (0 << 3) #define PCDP_VGA (1 << 3) #define PCDP_USB (2 << 3) /* pcdp_uart.type and pcdp_device.type */ #define PCDP_CONSOLE_UART (PCDP_UART | PCDP_CONSOLE) #define PCDP_DEBUG_UART (PCDP_UART | PCDP_DEBUG) #define PCDP_CONSOLE_VGA (PCDP_VGA | PCDP_CONSOLE_OUTPUT) #define PCDP_CONSOLE_USB (PCDP_USB | PCDP_CONSOLE_INPUT) /* pcdp_uart.flags */ #define PCDP_UART_EDGE_SENSITIVE (1 << 0) #define PCDP_UART_ACTIVE_LOW (1 << 1) #define PCDP_UART_PRIMARY_CONSOLE (1 << 2) #define PCDP_UART_IRQ (1 << 6) /* in pci_func for rev < 3 */ #define PCDP_UART_PCI (1 << 7) /* in pci_func for rev < 3 */ struct pcdp_uart { u8 type; u8 bits; u8 parity; u8 stop_bits; u8 pci_seg; u8 pci_bus; u8 pci_dev; u8 pci_func; u64 baud; struct acpi_generic_address addr; u16 pci_dev_id; u16 pci_vendor_id; u32 gsi; u32 clock_rate; u8 pci_prog_intfc; u8 flags; u16 conout_index; u32 reserved; } __attribute__((packed)); #define PCDP_IF_PCI 1 /* pcdp_if_pci.trans */ #define PCDP_PCI_TRANS_IOPORT 0x02 #define PCDP_PCI_TRANS_MMIO 0x01 struct pcdp_if_pci { u8 interconnect; u8 reserved; u16 length; u8 segment; u8 bus; u8 dev; u8 fun; u16 dev_id; u16 vendor_id; u32 acpi_interrupt; u64 mmio_tra; u64 ioport_tra; u8 flags; u8 trans; } __attribute__((packed)); struct pcdp_vga { u8 count; /* address space descriptors */ } __attribute__((packed)); /* pcdp_device.flags */ #define PCDP_PRIMARY_CONSOLE 1 struct pcdp_device { u8 type; u8 flags; u16 length; u16 efi_index; /* next data is pcdp_if_pci or pcdp_if_acpi (not yet supported) */ /* next data is device specific type (currently only pcdp_vga) */ } __attribute__((packed)); struct pcdp { u8 signature[4]; u32 length; u8 rev; /* PCDP v2.0 is rev 3 */ u8 chksum; u8 oemid[6]; u8 oem_tabid[8]; u32 oem_rev; u8 creator_id[4]; u32 creator_rev; u32 num_uarts; struct pcdp_uart uart[0]; /* actual size is num_uarts */ /* remainder of table is pcdp_device structures */ } __attribute__((packed));