| 1 | /** @file
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| 2 | * PCI - The PCI Controller And Devices.
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| 3 | */
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| 4 |
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| 5 | /*
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| 6 | * Copyright (C) 2006-2007 innotek GmbH
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| 7 | *
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| 8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 9 | * available from http://www.virtualbox.org. This file is free software;
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| 10 | * you can redistribute it and/or modify it under the terms of the GNU
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| 11 | * General Public License as published by the Free Software Foundation,
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| 12 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 13 | * distribution. VirtualBox OSE is distributed in the hope that it will
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| 14 | * be useful, but WITHOUT ANY WARRANTY of any kind.
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| 15 | *
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| 16 | * If you received this file as part of a commercial VirtualBox
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| 17 | * distribution, then only the terms of your commercial VirtualBox
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| 18 | * license agreement apply instead of the previous paragraph.
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| 19 | */
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| 20 |
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| 21 |
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| 22 | #ifndef __VBox_pci_h__
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| 23 | #define __VBox_pci_h__
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| 24 |
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| 25 |
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| 26 | #include <VBox/cdefs.h>
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| 27 | #include <VBox/types.h>
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| 28 |
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| 29 | /** @defgroup grp_pci PCI - The PCI Controller.
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| 30 | * @{
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| 31 | */
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| 32 |
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| 33 | /** Pointer to a PCI device. */
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| 34 | typedef struct PCIDevice *PPCIDEVICE;
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| 35 |
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| 36 |
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| 37 | /**
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| 38 | * PCI configuration word 4 (command) and word 6 (status).
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| 39 | */
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| 40 | typedef enum PCICONFIGCOMMAND
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| 41 | {
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| 42 | /** Supports/uses memory accesses. */
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| 43 | PCI_COMMAND_IOACCESS = 0x0001,
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| 44 | PCI_COMMAND_MEMACCESS = 0x0002,
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| 45 | PCI_COMMAND_BUSMASTER = 0x0004
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| 46 | } PCICONFIGCOMMAND;
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| 47 |
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| 48 |
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| 49 | /**
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| 50 | * PCI Address space specification.
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| 51 | * This is used when registering a I/O region.
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| 52 | */
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| 53 | typedef enum PCIADDRESSSPACE
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| 54 | {
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| 55 | /** Memory. */
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| 56 | PCI_ADDRESS_SPACE_MEM = 0x00,
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| 57 | /** I/O space. */
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| 58 | PCI_ADDRESS_SPACE_IO = 0x01,
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| 59 | /** Prefetch memory. */
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| 60 | PCI_ADDRESS_SPACE_MEM_PREFETCH = 0x08
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| 61 | } PCIADDRESSSPACE;
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| 62 |
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| 63 |
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| 64 | /**
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| 65 | * Callback function for mapping an PCI I/O region.
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| 66 | *
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| 67 | * @return VBox status code.
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| 68 | * @param pPciDev Pointer to PCI device. Use pPciDev->pDevIns to get the device instance.
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| 69 | * @param iRegion The region number.
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| 70 | * @param GCPhysAddress Physical address of the region. If iType is PCI_ADDRESS_SPACE_IO, this is an
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| 71 | * I/O port, else it's a physical address.
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| 72 | * This address is *NOT* relative to pci_mem_base like earlier!
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| 73 | * @param enmType One of the PCI_ADDRESS_SPACE_* values.
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| 74 | */
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| 75 | typedef DECLCALLBACK(int) FNPCIIOREGIONMAP(PPCIDEVICE pPciDev, /*unsigned*/ int iRegion, RTGCPHYS GCPhysAddress, uint32_t cb, PCIADDRESSSPACE enmType);
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| 76 | /** Pointer to a FNPCIIOREGIONMAP() function. */
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| 77 | typedef FNPCIIOREGIONMAP *PFNPCIIOREGIONMAP;
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| 78 |
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| 79 |
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| 80 | /** @name PCI Configuration Space Registers
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| 81 | * @{ */
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| 82 | #define VBOX_PCI_VENDOR_ID 0x00 /**< 16-bit RO */
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| 83 | #define VBOX_PCI_DEVICE_ID 0x02 /**< 16-bit RO */
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| 84 | #define VBOX_PCI_COMMAND 0x04 /**< 16-bit RW */
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| 85 | #define VBOX_PCI_STATUS 0x06 /**< 16-bit RW */
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| 86 | #define VBOX_PCI_REVISION_ID 0x08 /**< 8-bit RO */
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| 87 | #define VBOX_PCI_CLASS_PROG 0x09 /**< 8-bit RO */
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| 88 | #define VBOX_PCI_CLASS_DEVICE 0x0a /**< 8-bit ?? */
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| 89 | #define VBOX_PCI_CACHE_LINE_SIZE 0x0c /**< 8-bit ?? */
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| 90 | #define VBOX_PCI_LATENCY_TIMER 0x0d /**< 8-bit ?? */
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| 91 | #define VBOX_PCI_HEADER_TYPE 0x0e /**< 8-bit ?? */
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| 92 | #define VBOX_PCI_BIST 0x0f /**< 8-bit ?? */
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| 93 | #define VBOX_PCI_BASE_ADDRESS_0 0x10 /**< 32-bit RW */
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| 94 | #define VBOX_PCI_BASE_ADDRESS_1 0x14 /**< 32-bit RW */
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| 95 | #define VBOX_PCI_BASE_ADDRESS_2 0x18 /**< 32-bit RW */
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| 96 | #define VBOX_PCI_PRIMARY_BUS 0x18 /**< 8-bit ?? - bridge - primary bus number. */
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| 97 | #define VBOX_PCI_SECONDARY_BUS 0x19 /**< 8-bit ?? - bridge - secondary bus number. */
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| 98 | #define VBOX_PCI_SUBORDINATE_BUS 0x1a /**< 8-bit ?? - bridge - highest subordinate bus number. (behind the bridge) */
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| 99 | #define VBOX_PCI_SEC_LATENCY_TIMER 0x1b /**< 8-bit ?? - bridge - secondary latency timer. */
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| 100 | #define VBOX_PCI_BASE_ADDRESS_3 0x1c /**< 32-bit RW */
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| 101 | #define VBOX_PCI_IO_BASE 0x1c /**< 8-bit ?? - bridge - I/O range base. */
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| 102 | #define VBOX_PCI_IO_LIMIT 0x1d /**< 8-bit ?? - bridge - I/O range limit. */
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| 103 | #define VBOX_PCI_SEC_STATUS 0x1e /**< 16-bit ?? - bridge - secondary status register. */
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| 104 | #define VBOX_PCI_BASE_ADDRESS_4 0x20 /**< 32-bit RW */
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| 105 | #define VBOX_PCI_MEMORY_BASE 0x20 /**< 16-bit ?? - bridge - memory range base. */
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| 106 | #define VBOX_PCI_MEMORY_LIMIT 0x22 /**< 16-bit ?? - bridge - memory range limit. */
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| 107 | #define VBOX_PCI_BASE_ADDRESS_5 0x24 /**< 32-bit RW */
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| 108 | #define VBOX_PCI_PREF_MEMORY_BASE 0x24 /**< 16-bit ?? - bridge - Prefetchable memory range base. */
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| 109 | #define VBOX_PCI_PREF_MEMORY_LIMIT 0x26 /**< 16-bit ?? - bridge - Prefetchable memory range limit. */
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| 110 | #define VBOX_PCI_CARDBUS_CIS 0x28 /**< 32-bit ?? */
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| 111 | #define VBOX_PCI_PREF_BASE_UPPER32 0x28 /**< 32-bit ?? - bridge - Prefetchable memory range high base.*/
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| 112 | #define VBOX_PCI_PREF_LIMIT_UPPER32 0x2c /**< 32-bit ?? - bridge - Prefetchable memory range high limit. */
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| 113 | #define VBOX_PCI_SUBSYSTEM_VENDOR_ID 0x2c /**< 16-bit ?? */
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| 114 | #define VBOX_PCI_SUBSYSTEM_ID 0x2e /**< 16-bit ?? */
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| 115 | #define VBOX_PCI_ROM_ADDRESS 0x30 /**< 32-bit ?? */
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| 116 | #define VBOX_PCI_IO_BASE_UPPER16 0x30 /**< 16-bit ?? - bridge - memory range high base. */
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| 117 | #define VBOX_PCI_IO_LIMIT_UPPER16 0x32 /**< 16-bit ?? - bridge - memory range high limit. */
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| 118 | #define VBOX_PCI_CAPABILITY_LIST 0x34 /**< 8-bit? ?? */
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| 119 | #define VBOX_PCI_ROM_ADDRESS_BR 0x38 /**< 32-bit ?? - bridge */
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| 120 | #define VBOX_PCI_INTERRUPT_LINE 0x3c /**< 8-bit RW - Interrupt line. */
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| 121 | #define VBOX_PCI_INTERRUPT_PIN 0x3d /**< 8-bit RO - Interrupt pin. */
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| 122 | #define VBOX_PCI_MIN_GNT 0x3e /**< 8-bit ?? */
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| 123 | #define VBOX_PCI_BRIDGE_CONTROL 0x3e /**< 8-bit? ?? - bridge */
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| 124 | #define VBOX_PCI_MAX_LAT 0x3f /**< 8-bit ?? */
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| 125 | /** @} */
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| 126 |
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| 127 |
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| 128 | /**
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| 129 | * Callback function for reading from the PCI configuration space.
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| 130 | *
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| 131 | * @returns The register value.
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| 132 | * @param pPciDev Pointer to PCI device. Use pPciDev->pDevIns to get the device instance.
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| 133 | * @param Address The configuration space register address. [0..255]
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| 134 | * @param cb The register size. [1,2,4]
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| 135 | */
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| 136 | typedef DECLCALLBACK(uint32_t) FNPCICONFIGREAD(PPCIDEVICE pPciDev, uint32_t Address, unsigned cb);
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| 137 | /** Pointer to a FNPCICONFIGREAD() function. */
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| 138 | typedef FNPCICONFIGREAD *PFNPCICONFIGREAD;
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| 139 | /** Pointer to a PFNPCICONFIGREAD. */
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| 140 | typedef PFNPCICONFIGREAD *PPFNPCICONFIGREAD;
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| 141 |
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| 142 | /**
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| 143 | * Callback function for writing to the PCI configuration space.
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| 144 | *
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| 145 | * @param pPciDev Pointer to PCI device. Use pPciDev->pDevIns to get the device instance.
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| 146 | * @param Address The configuration space register address. [0..255]
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| 147 | * @param u32Value The value that's being written. The number of bits actually used from
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| 148 | * this value is determined by the cb parameter.
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| 149 | * @param cb The register size. [1,2,4]
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| 150 | */
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| 151 | typedef DECLCALLBACK(void) FNPCICONFIGWRITE(PPCIDEVICE pPciDev, uint32_t Address, uint32_t u32Value, unsigned cb);
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| 152 | /** Pointer to a FNPCICONFIGWRITE() function. */
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| 153 | typedef FNPCICONFIGWRITE *PFNPCICONFIGWRITE;
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| 154 | /** Pointer to a PFNPCICONFIGWRITE. */
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| 155 | typedef PFNPCICONFIGWRITE *PPFNPCICONFIGWRITE;
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| 156 |
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| 157 | /** Fixed I/O region number for ROM. */
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| 158 | #define PCI_ROM_SLOT 6
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| 159 | /** Max number of I/O regions. */
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| 160 | #define PCI_NUM_REGIONS 7
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| 161 |
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| 162 | /*
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| 163 | * Hack to include the PCIDEVICEINT structure at the right place
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| 164 | * to avoid duplications of FNPCIIOREGIONMAP and PCI_NUM_REGIONS.
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| 165 | */
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| 166 | #ifdef PCI_INCLUDE_PRIVATE
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| 167 | # include "PCIInternal.h"
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| 168 | #endif
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| 169 |
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| 170 | /**
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| 171 | * PCI Device structure.
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| 172 | */
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| 173 | typedef struct PCIDevice
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| 174 | {
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| 175 | /** PCI config space. */
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| 176 | uint8_t config[256];
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| 177 |
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| 178 | /** Internal data. */
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| 179 | union
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| 180 | {
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| 181 | #ifdef __PCIDEVICEINT_DECLARED__
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| 182 | PCIDEVICEINT s;
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| 183 | #endif
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| 184 | char padding[224];
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| 185 | } Int;
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| 186 |
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| 187 | /** Read only data.
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| 188 | * @{
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| 189 | */
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| 190 | /** PCI device number on the pci bus. */
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| 191 | int32_t devfn;
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| 192 | uint32_t Alignment0; /**< Alignment. */
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| 193 | /** Device name. */
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| 194 | R3PTRTYPE(const char *) name;
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| 195 | /** Pointer to the device instance which registered the device. */
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| 196 | PPDMDEVINSR3 pDevIns;
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| 197 | /** @} */
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| 198 | } PCIDEVICE;
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| 199 |
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| 200 |
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| 201 | /**
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| 202 | * Sets the vendor id config register.
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| 203 | * @param pPciDev The PCI device.
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| 204 | * @param u16VendorId The vendor id.
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| 205 | */
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| 206 | DECLINLINE(void) PCIDevSetVendorId(PPCIDEVICE pPciDev, uint16_t u16VendorId)
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| 207 | {
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| 208 | u16VendorId = RT_H2LE_U16(u16VendorId);
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| 209 | pPciDev->config[VBOX_PCI_VENDOR_ID] = u16VendorId & 0xff;
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| 210 | pPciDev->config[VBOX_PCI_VENDOR_ID + 1] = u16VendorId >> 8;
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| 211 | }
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| 212 |
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| 213 | /**
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| 214 | * Sets the vendor id config register.
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| 215 | * @param pPciDev The PCI device.
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| 216 | * @param u16VendorId The vendor id.
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| 217 | */
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| 218 | DECLINLINE(void) PCIDevSetDeviceId(PPCIDEVICE pPciDev, uint16_t u16DeviceId)
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| 219 | {
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| 220 | u16DeviceId = RT_H2LE_U16(u16DeviceId);
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| 221 | pPciDev->config[VBOX_PCI_DEVICE_ID] = u16DeviceId & 0xff;
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| 222 | pPciDev->config[VBOX_PCI_DEVICE_ID + 1] = u16DeviceId >> 8;
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| 223 | }
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| 224 |
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| 225 |
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| 226 | /** @} */
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| 227 |
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| 228 | #endif
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