1 /*++ 2 3 Copyright (c) 2005 - 2006, Intel Corporation. All rights reserved.<BR> 4 This program and the accompanying materials 5 are licensed and made available under the terms and conditions of the BSD License 6 which accompanies this distribution. The full text of the license may be found at 7 http://opensource.org/licenses/bsd-license.php 8 9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 11 12 Module Name: 13 14 PciCommand.h 15 16 Abstract: 17 18 PCI Bus Driver 19 20 Revision History 21 22 --*/ 23 24 #ifndef _EFI_PCI_COMMAND_H 25 #define _EFI_PCI_COMMAND_H 26 27 #include "PciBus.h" 28 29 // 30 // The PCI Command register bits owned by PCI Bus driver. 31 // 32 // They should be cleared at the beginning. The other registers 33 // are owned by chipset, we should not touch them. 34 // 35 #define EFI_PCI_COMMAND_BITS_OWNED ( \ 36 EFI_PCI_COMMAND_IO_SPACE | \ 37 EFI_PCI_COMMAND_MEMORY_SPACE | \ 38 EFI_PCI_COMMAND_BUS_MASTER | \ 39 EFI_PCI_COMMAND_MEMORY_WRITE_AND_INVALIDATE | \ 40 EFI_PCI_COMMAND_VGA_PALETTE_SNOOP | \ 41 EFI_PCI_COMMAND_FAST_BACK_TO_BACK \ 42 ) 43 44 // 45 // The PCI Bridge Control register bits owned by PCI Bus driver. 46 // 47 // They should be cleared at the beginning. The other registers 48 // are owned by chipset, we should not touch them. 49 // 50 #define EFI_PCI_BRIDGE_CONTROL_BITS_OWNED ( \ 51 EFI_PCI_BRIDGE_CONTROL_ISA | \ 52 EFI_PCI_BRIDGE_CONTROL_VGA | \ 53 EFI_PCI_BRIDGE_CONTROL_VGA_16 | \ 54 EFI_PCI_BRIDGE_CONTROL_FAST_BACK_TO_BACK \ 55 ) 56 57 // 58 // The PCCard Bridge Control register bits owned by PCI Bus driver. 59 // 60 // They should be cleared at the beginning. The other registers 61 // are owned by chipset, we should not touch them. 62 // 63 #define EFI_PCCARD_BRIDGE_CONTROL_BITS_OWNED ( \ 64 EFI_PCI_BRIDGE_CONTROL_ISA | \ 65 EFI_PCI_BRIDGE_CONTROL_VGA | \ 66 EFI_PCI_BRIDGE_CONTROL_FAST_BACK_TO_BACK \ 67 ) 68 69 EFI_STATUS 70 PciReadCommandRegister ( 71 IN PCI_IO_DEVICE *PciIoDevice, 72 OUT UINT16 *Command 73 ); 74 75 76 EFI_STATUS 77 PciSetCommandRegister ( 78 IN PCI_IO_DEVICE *PciIoDevice, 79 IN UINT16 Command 80 ); 81 82 EFI_STATUS 83 PciEnableCommandRegister ( 84 IN PCI_IO_DEVICE *PciIoDevice, 85 IN UINT16 Command 86 ); 87 88 EFI_STATUS 89 PciDisableCommandRegister ( 90 IN PCI_IO_DEVICE *PciIoDevice, 91 IN UINT16 Command 92 ); 93 94 EFI_STATUS 95 PciDisableBridgeControlRegister ( 96 IN PCI_IO_DEVICE *PciIoDevice, 97 IN UINT16 Command 98 ); 99 100 101 EFI_STATUS 102 PciEnableBridgeControlRegister ( 103 IN PCI_IO_DEVICE *PciIoDevice, 104 IN UINT16 Command 105 ); 106 107 EFI_STATUS 108 PciReadBridgeControlRegister ( 109 IN PCI_IO_DEVICE *PciIoDevice, 110 OUT UINT16 *Command 111 ); 112 113 BOOLEAN 114 PciCapabilitySupport ( 115 IN PCI_IO_DEVICE *PciIoDevice 116 ) 117 /*++ 118 119 Routine Description: 120 121 TODO: Add function description 122 123 Arguments: 124 125 PciIoDevice - TODO: add argument description 126 127 Returns: 128 129 TODO: add return values 130 131 --*/ 132 ; 133 134 EFI_STATUS 135 LocateCapabilityRegBlock ( 136 IN PCI_IO_DEVICE *PciIoDevice, 137 IN UINT8 CapId, 138 IN OUT UINT8 *Offset, 139 OUT UINT8 *NextRegBlock OPTIONAL 140 ) 141 /*++ 142 143 Routine Description: 144 145 Locate Capability register. 146 147 Arguments: 148 149 PciIoDevice - A pointer to the PCI_IO_DEVICE. 150 CapId - The capability ID. 151 Offset - A pointer to the offset. 152 As input: the default offset; 153 As output: the offset of the found block. 154 NextRegBlock - An optional pointer to return the value of next block. 155 156 Returns: 157 158 EFI_UNSUPPORTED - The Pci Io device is not supported. 159 EFI_NOT_FOUND - The Pci Io device cannot be found. 160 EFI_SUCCESS - The Pci Io device is successfully located. 161 162 --*/ 163 ; 164 165 166 #endif 167 168
