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1da177e4 LT |
1 | /* |
2 | * Definitions for PCDP-defined console devices | |
3 | * | |
4 | * v1.0a: http://www.dig64.org/specifications/DIG64_HCDPv10a_01.pdf | |
280dedb8 | 5 | * v2.0: http://www.dig64.org/specifications/DIG64_PCDPv20.pdf |
1da177e4 LT |
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 | }; | |
56 | ||
57 | struct pcdp_vga { | |
58 | u8 count; /* address space descriptors */ | |
59 | }; | |
60 | ||
61 | /* pcdp_device.flags */ | |
62 | #define PCDP_PRIMARY_CONSOLE 1 | |
63 | ||
64 | struct pcdp_device { | |
65 | u8 type; | |
66 | u8 flags; | |
67 | u16 length; | |
68 | u16 efi_index; | |
69 | }; | |
70 | ||
71 | struct pcdp { | |
72 | u8 signature[4]; | |
73 | u32 length; | |
74 | u8 rev; /* PCDP v2.0 is rev 3 */ | |
75 | u8 chksum; | |
76 | u8 oemid[6]; | |
77 | u8 oem_tabid[8]; | |
78 | u32 oem_rev; | |
79 | u8 creator_id[4]; | |
80 | u32 creator_rev; | |
81 | u32 num_uarts; | |
82 | struct pcdp_uart uart[0]; /* actual size is num_uarts */ | |
83 | /* remainder of table is pcdp_device structures */ | |
84 | }; |