diff options
Diffstat (limited to 'roms/openbios/drivers/pci.h')
| -rw-r--r-- | roms/openbios/drivers/pci.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/roms/openbios/drivers/pci.h b/roms/openbios/drivers/pci.h new file mode 100644 index 000000000..883a531d1 --- /dev/null +++ b/roms/openbios/drivers/pci.h @@ -0,0 +1,103 @@ +#ifndef PCI_H +#define PCI_H + +#define PCI_VENDOR_ID 0x00 +#define PCI_DEVICE_ID 0x02 + +#define PCI_COMMAND 0x04 +#define PCI_COMMAND_IO 0x01 +#define PCI_COMMAND_MEMORY 0x02 +#define PCI_COMMAND_BUS_MASTER 0x04 + +#define PCI_STATUS 0x06 /* 16 bits */ +#define PCI_STATUS_CAP_LIST 0x10 /* Support Capability List */ +#define PCI_STATUS_66MHZ 0x20 /* Support 66 Mhz PCI 2.1 bus */ +#define PCI_STATUS_UDF 0x40 /* Support User Definable Features + [obsolete] */ +#define PCI_STATUS_FAST_BACK 0x80 /* Accept fast-back to back */ +#define PCI_STATUS_PARITY 0x100 /* Detected parity error */ +#define PCI_STATUS_DEVSEL_MASK 0x600 /* DEVSEL timing */ +#define PCI_STATUS_DEVSEL_FAST 0x000 +#define PCI_STATUS_DEVSEL_MEDIUM 0x200 +#define PCI_STATUS_DEVSEL_SLOW 0x400 +#define PCI_STATUS_SIG_TARGET_ABORT 0x800 /* Set on target abort */ +#define PCI_STATUS_REC_TARGET_ABORT 0x1000 /* Master ack of " */ +#define PCI_STATUS_REC_MASTER_ABORT 0x2000 /* Set on master abort */ +#define PCI_STATUS_SIG_SYSTEM_ERROR 0x4000 /* Set when we drive SERR */ +#define PCI_STATUS_DETECTED_PARITY 0x8000 /* Set on parity error */ + + +#define PCI_REVISION_ID 0x08 /* Revision ID */ +#define PCI_CLASS_DISPLAY 0x03 +#define PCI_CLASS_PROG 0x09 +#define PCI_CLASS_DEVICE 0x0a +#define PCI_CACHE_LINE_SIZE 0x0c /* 8 bits */ +#define PCI_HEADER_TYPE 0x0e +#define PCI_HEADER_TYPE_NORMAL 0x00 +#define PCI_HEADER_TYPE_BRIDGE 0x01 +#define PCI_HEADER_TYPE_CARDBUS 0x02 +#define PCI_PRIMARY_BUS 0x18 +#define PCI_SECONDARY_BUS 0x19 +#define PCI_SUBORDINATE_BUS 0x1A +#define PCI_BASE_ADDR_0 0x10 +#define PCI_BASE_ADDR_1 0x14 +#define PCI_BASE_ADDR_2 0x18 +#define PCI_BASE_ADDR_3 0x1c +#define PCI_BASE_ADDR_4 0x20 +#define PCI_BASE_ADDR_5 0x24 + +#define PCI_IO_BASE 0x1c +#define PCI_IO_BASE_UPPER 0x30 +#define PCI_IO_LIMIT 0x1d +#define PCI_IO_LIMIT_UPPER 0x32 +#define PCI_MEMORY_BASE 0x20 +#define PCI_MEMORY_LIMIT 0x22 + +#define PCI_SUBSYSTEM_VENDOR_ID 0x2c +#define PCI_SUBSYSTEM_ID 0x2e + +#define PCI_ROM_ADDRESS 0x30 /* Bits 31..11 are address, 10..1 reserved */ +#define PCI_ROM_ADDRESS_ENABLE 0x01 +#define PCI_ROM_ADDRESS_MASK (~0x7ffUL) +#define PCI_ROM_ADDRESS1 0x38 /* ROM_ADDRESS in bridge header */ + +#define PCI_INTERRUPT_LINE 0x3c /* 8 bits */ +#define PCI_INTERRUPT_PIN 0x3d /* 8 bits */ +#define PCI_MIN_GNT 0x3e /* 8 bits */ +#define PCI_MAX_LAT 0x3f /* 8 bits */ + +#define PCI_RANGE_RELOCATABLE 0x80000000 +#define PCI_RANGE_PREFETCHABLE 0x40000000 +#define PCI_RANGE_ALIASED 0x20000000 +#define PCI_RANGE_TYPE_MASK 0x03000000 +#define PCI_RANGE_MMIO_64BIT 0x03000000 +#define PCI_RANGE_MMIO 0x02000000 +#define PCI_RANGE_IOPORT 0x01000000 +#define PCI_RANGE_CONFIG 0x00000000 + +typedef struct { + u16 signature; + u8 reserved[0x16]; + u16 dptr; +} rom_header_t; + +typedef struct { + u32 signature; + u16 vendor; + u16 device; + u16 reserved_1; + u16 dlen; + u8 drevision; + u8 class_hi; + u16 class_lo; + u16 ilen; + u16 irevision; + u8 type; + u8 indicator; + u16 reserved_2; +} pci_data_t; + + +#include "asm/pci.h" + +#endif /* PCI_H */ |