1 /* 2 * Definitions for PCDP-defined console devices 3 * 4 * For DIG64_HCDPv10a_01.pdf and DIG64_PCDPv20.pdf (v1.0a and v2.0 resp.), 5 * please see <http://www.dig64.org/specifications/> 6 * 7 * (c) Copyright 2002, 2004 Hewlett-Packard Development Company, L.P. 8 * Khalid Aziz <khalid.aziz@hp.com> 9 * Bjorn Helgaas <bjorn.helgaas@hp.com> 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License version 2 as 13 * published by the Free Software Foundation. 14 */ 15 16 #define PCDP_CONSOLE 0 17 #define PCDP_DEBUG 1 18 #define PCDP_CONSOLE_OUTPUT 2 19 #define PCDP_CONSOLE_INPUT 3 20 21 #define PCDP_UART (0 << 3) 22 #define PCDP_VGA (1 << 3) 23 #define PCDP_USB (2 << 3) 24 25 /* pcdp_uart.type and pcdp_device.type */ 26 #define PCDP_CONSOLE_UART (PCDP_UART | PCDP_CONSOLE) 27 #define PCDP_DEBUG_UART (PCDP_UART | PCDP_DEBUG) 28 #define PCDP_CONSOLE_VGA (PCDP_VGA | PCDP_CONSOLE_OUTPUT) 29 #define PCDP_CONSOLE_USB (PCDP_USB | PCDP_CONSOLE_INPUT) 30 31 /* pcdp_uart.flags */ 32 #define PCDP_UART_EDGE_SENSITIVE (1 << 0) 33 #define PCDP_UART_ACTIVE_LOW (1 << 1) 34 #define PCDP_UART_PRIMARY_CONSOLE (1 << 2) 35 #define PCDP_UART_IRQ (1 << 6) /* in pci_func for rev < 3 */ 36 #define PCDP_UART_PCI (1 << 7) /* in pci_func for rev < 3 */ 37 38 struct pcdp_uart { 39 u8 type; 40 u8 bits; 41 u8 parity; 42 u8 stop_bits; 43 u8 pci_seg; 44 u8 pci_bus; 45 u8 pci_dev; 46 u8 pci_func; 47 u64 baud; 48 struct acpi_generic_address addr; 49 u16 pci_dev_id; 50 u16 pci_vendor_id; 51 u32 gsi; 52 u32 clock_rate; 53 u8 pci_prog_intfc; 54 u8 flags; 55 u16 conout_index; 56 u32 reserved; 57 } __attribute__((packed)); 58 59 #define PCDP_IF_PCI 1 60 61 /* pcdp_if_pci.trans */ 62 #define PCDP_PCI_TRANS_IOPORT 0x02 63 #define PCDP_PCI_TRANS_MMIO 0x01 64 65 struct pcdp_if_pci { 66 u8 interconnect; 67 u8 reserved; 68 u16 length; 69 u8 segment; 70 u8 bus; 71 u8 dev; 72 u8 fun; 73 u16 dev_id; 74 u16 vendor_id; 75 u32 acpi_interrupt; 76 u64 mmio_tra; 77 u64 ioport_tra; 78 u8 flags; 79 u8 trans; 80 } __attribute__((packed)); 81 82 struct pcdp_vga { 83 u8 count; /* address space descriptors */ 84 } __attribute__((packed)); 85 86 /* pcdp_device.flags */ 87 #define PCDP_PRIMARY_CONSOLE 1 88 89 struct pcdp_device { 90 u8 type; 91 u8 flags; 92 u16 length; 93 u16 efi_index; 94 /* next data is pcdp_if_pci or pcdp_if_acpi (not yet supported) */ 95 /* next data is device specific type (currently only pcdp_vga) */ 96 } __attribute__((packed)); 97 98 struct pcdp { 99 u8 signature[4]; 100 u32 length; 101 u8 rev; /* PCDP v2.0 is rev 3 */ 102 u8 chksum; 103 u8 oemid[6]; 104 u8 oem_tabid[8]; 105 u32 oem_rev; 106 u8 creator_id[4]; 107 u32 creator_rev; 108 u32 num_uarts; 109 struct pcdp_uart uart[0]; /* actual size is num_uarts */ 110 /* remainder of table is pcdp_device structures */ 111 } __attribute__((packed)); 112