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| author | Kevin O'Connor <kevin@koconnor.net> | 2008-06-12 22:16:35 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2008-06-12 22:16:35 -0400 |
| commit | d25810a024ef7f790686c09ec3178be64b95e072 (patch) | |
| tree | 7b4bbbd835d7adb9db23b219cc6729e43f8d5519 /src/pirtable.c | |
| parent | d8a1811d26589f03c01d169dadc1967c59625f8d (diff) | |
| download | seabios-hppa-d25810a024ef7f790686c09ec3178be64b95e072.zip seabios-hppa-d25810a024ef7f790686c09ec3178be64b95e072.tar.gz seabios-hppa-d25810a024ef7f790686c09ec3178be64b95e072.tar.bz2 | |
Generate PIR table at post time.
Move the predefined PIR table (only useful on emulators) to its own
file - pirtable.c.
Have the pcibios code inspect the pre-built PIR table on 1ab10e
calls.
Diffstat (limited to 'src/pirtable.c')
| -rw-r--r-- | src/pirtable.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/pirtable.c b/src/pirtable.c new file mode 100644 index 0000000..c20a169 --- /dev/null +++ b/src/pirtable.c @@ -0,0 +1,98 @@ +// PIR table generation (for emulators) +// +// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net> +// Copyright (C) 2002 MandrakeSoft S.A. +// +// This file may be distributed under the terms of the GNU GPLv3 license. + +#include "pci.h" // struct pir_header +#include "util.h" // checksum + +struct pir_table { + struct pir_header pir; + struct pir_slot slots[6]; +} PACKED PIR_TABLE VISIBLE16 __attribute__((aligned(16))) = { +#if CONFIG_PIRTABLE + .pir = { + .signature = PIR_SIGNATURE, + .version = 0x0100, + .size = sizeof(struct pir_table), + .router_devfunc = 0x08, + .compatible_devid = 0x122e8086, + .checksum = 0x37, // XXX - should auto calculate + }, + .slots = { + { + // first slot entry PCI-to-ISA (embedded) + .dev = 1<<3, + .links = { + {.link = 0x60, .bitmap = 0xdef8}, // INTA# + {.link = 0x61, .bitmap = 0xdef8}, // INTB# + {.link = 0x62, .bitmap = 0xdef8}, // INTC# + {.link = 0x63, .bitmap = 0xdef8}, // INTD# + }, + .slot_nr = 0, // embedded + }, { + // second slot entry: 1st PCI slot + .dev = 2<<3, + .links = { + {.link = 0x61, .bitmap = 0xdef8}, // INTA# + {.link = 0x62, .bitmap = 0xdef8}, // INTB# + {.link = 0x63, .bitmap = 0xdef8}, // INTC# + {.link = 0x60, .bitmap = 0xdef8}, // INTD# + }, + .slot_nr = 1, + }, { + // third slot entry: 2nd PCI slot + .dev = 3<<3, + .links = { + {.link = 0x62, .bitmap = 0xdef8}, // INTA# + {.link = 0x63, .bitmap = 0xdef8}, // INTB# + {.link = 0x60, .bitmap = 0xdef8}, // INTC# + {.link = 0x61, .bitmap = 0xdef8}, // INTD# + }, + .slot_nr = 2, + }, { + // 4th slot entry: 3rd PCI slot + .dev = 4<<3, + .links = { + {.link = 0x63, .bitmap = 0xdef8}, // INTA# + {.link = 0x60, .bitmap = 0xdef8}, // INTB# + {.link = 0x61, .bitmap = 0xdef8}, // INTC# + {.link = 0x62, .bitmap = 0xdef8}, // INTD# + }, + .slot_nr = 3, + }, { + // 5th slot entry: 4rd PCI slot + .dev = 5<<3, + .links = { + {.link = 0x60, .bitmap = 0xdef8}, // INTA# + {.link = 0x61, .bitmap = 0xdef8}, // INTB# + {.link = 0x62, .bitmap = 0xdef8}, // INTC# + {.link = 0x63, .bitmap = 0xdef8}, // INTD# + }, + .slot_nr = 4, + }, { + // 6th slot entry: 5rd PCI slot + .dev = 6<<3, + .links = { + {.link = 0x61, .bitmap = 0xdef8}, // INTA# + {.link = 0x62, .bitmap = 0xdef8}, // INTB# + {.link = 0x63, .bitmap = 0xdef8}, // INTC# + {.link = 0x60, .bitmap = 0xdef8}, // INTD# + }, + .slot_nr = 5, + }, + } +#endif // CONFIG_PIRTABLE +}; + +void +create_pirtable() +{ + if (! CONFIG_PIRTABLE) + return; + + PIR_TABLE.pir.checksum = -checksum((u8*)&PIR_TABLE, sizeof(PIR_TABLE)); + SET_EBDA(pir_loc, (u32)&PIR_TABLE); +} |