| 1 | #define USER_SPACE 1
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| 2 | /*
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| 3 | pci.c
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| 4 |
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| 5 | Configure devices on the PCI bus
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| 6 |
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| 7 | Created: Jan 2000 by Philip Homburg <philip@cs.vu.nl>
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| 8 | */
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| 9 |
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| 10 | #include "../drivers.h"
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| 11 | #define NDEBUG /* disable assertions */
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| 12 | #include <assert.h>
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| 13 | #include <minix/com.h>
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| 14 | #include <minix/syslib.h>
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| 15 |
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| 16 | #include "pci.h"
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| 17 | #include "pci_amd.h"
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| 18 | #include "pci_intel.h"
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| 19 | #include "pci_sis.h"
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| 20 | #include "pci_via.h"
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| 21 | #if __minix_vmd
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| 22 | #include "config.h"
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| 23 | #endif
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| 24 |
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| 25 | #if !__minix_vmd
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| 26 | #define irq_mode_pci(irq) ((void)0)
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| 27 | #endif
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| 28 |
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| 29 | #include <stdlib.h>
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| 30 | #include <stdio.h>
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| 31 | #include <string.h>
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| 32 | #include <minix/sysutil.h>
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| 33 |
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| 34 | #define NR_PCIBUS 4
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| 35 | #define NR_PCIDEV 40
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| 36 |
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| 37 | #define PBT_INTEL 1
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| 38 | #define PBT_PCIBRIDGE 2
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| 39 |
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| 40 | PRIVATE int debug= 0;
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| 41 |
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| 42 | PRIVATE struct pcibus
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| 43 | {
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| 44 | int pb_type;
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| 45 | int pb_isabridge_dev;
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| 46 | int pb_isabridge_type;
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| 47 |
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| 48 | int pb_devind;
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| 49 | int pb_bus;
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| 50 | u8_t (*pb_rreg8)(int busind, int devind, int port);
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| 51 | u16_t (*pb_rreg16)(int busind, int devind, int port);
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| 52 | u32_t (*pb_rreg32)(int busind, int devind, int port);
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| 53 | void (*pb_wreg16)(int busind, int devind, int port, U16_t value);
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| 54 | void (*pb_wreg32)(int busind, int devind, int port, u32_t value);
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| 55 | u16_t (*pb_rsts)(int busind);
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| 56 | void (*pb_wsts)(int busind, U16_t value);
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| 57 | } pcibus[NR_PCIBUS];
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| 58 | PRIVATE int nr_pcibus= 0;
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| 59 |
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| 60 | PRIVATE struct pcidev
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| 61 | {
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| 62 | u8_t pd_busind;
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| 63 | u8_t pd_dev;
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| 64 | u8_t pd_func;
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| 65 | u8_t pd_baseclass;
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| 66 | u8_t pd_subclass;
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| 67 | u8_t pd_infclass;
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| 68 | u16_t pd_vid;
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| 69 | u16_t pd_did;
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| 70 | u8_t pd_inuse;
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| 71 | } pcidev[NR_PCIDEV];
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| 72 | PRIVATE int nr_pcidev= 0;
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| 73 |
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| 74 | /* Work around the limitation of the PCI emulation in QEMU 0.7.1 */
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| 75 | PRIVATE int qemu_pci= 0;
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| 76 |
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| 77 | FORWARD _PROTOTYPE( void pci_intel_init, (void) );
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| 78 | FORWARD _PROTOTYPE( void probe_bus, (int busind) );
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| 79 | FORWARD _PROTOTYPE( int do_isabridge, (int busind) );
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| 80 | FORWARD _PROTOTYPE( void do_pcibridge, (int busind) );
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| 81 | FORWARD _PROTOTYPE( int do_piix, (int devind) );
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| 82 | FORWARD _PROTOTYPE( int do_amd_isabr, (int devind) );
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| 83 | FORWARD _PROTOTYPE( int do_sis_isabr, (int devind) );
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| 84 | FORWARD _PROTOTYPE( int do_via_isabr, (int devind) );
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| 85 | FORWARD _PROTOTYPE( char *pci_vid_name, (U16_t vid) );
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| 86 | FORWARD _PROTOTYPE( char *pci_baseclass_name, (U8_t baseclass) );
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| 87 | FORWARD _PROTOTYPE( char *pci_subclass_name, (U8_t baseclass,
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| 88 | U8_t subclass, U8_t infclass) );
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| 89 | FORWARD _PROTOTYPE( void ntostr, (unsigned n, char **str, char *end) );
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| 90 | FORWARD _PROTOTYPE( u16_t pci_attr_rsts, (int devind) );
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| 91 | FORWARD _PROTOTYPE( void pci_attr_wsts, (int devind, U16_t value) );
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| 92 | FORWARD _PROTOTYPE( u16_t pcibr_intel_rsts, (int busind) );
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| 93 | FORWARD _PROTOTYPE( void pcibr_intel_wsts, (int busind, U16_t value) );
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| 94 | FORWARD _PROTOTYPE( u16_t pcibr_via_rsts, (int busind) );
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| 95 | FORWARD _PROTOTYPE( void pcibr_via_wsts, (int busind, U16_t value) );
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| 96 | FORWARD _PROTOTYPE( u8_t pcii_rreg8, (int busind, int devind, int port) );
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| 97 | FORWARD _PROTOTYPE( u16_t pcii_rreg16, (int busind, int devind,
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| 98 | int port) );
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| 99 | FORWARD _PROTOTYPE( u32_t pcii_rreg32, (int busind, int devind,
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| 100 | int port) );
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| 101 | FORWARD _PROTOTYPE( void pcii_wreg16, (int busind, int devind, int port,
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| 102 | U16_t value) );
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| 103 | FORWARD _PROTOTYPE( void pcii_wreg32, (int busind, int devind, int port,
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| 104 | u32_t value) );
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| 105 | FORWARD _PROTOTYPE( u16_t pcii_rsts, (int busind) );
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| 106 | FORWARD _PROTOTYPE( void pcii_wsts, (int busind, U16_t value) );
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| 107 |
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| 108 | /*===========================================================================*
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| 109 | * helper functions for I/O *
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| 110 | *===========================================================================*/
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| 111 | PUBLIC unsigned pci_inb(U16_t port) {
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| 112 | U8_t value;
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| 113 | int s;
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| 114 | if ((s=sys_inb(port, &value)) !=OK)
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| 115 | printf("PCI: warning, sys_inb failed: %d\n", s);
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| 116 | return value;
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| 117 | }
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| 118 | PUBLIC unsigned pci_inw(U16_t port) {
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| 119 | U16_t value;
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| 120 | int s;
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| 121 | if ((s=sys_inw(port, &value)) !=OK)
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| 122 | printf("PCI: warning, sys_inw failed: %d\n", s);
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| 123 | return value;
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| 124 | }
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| 125 | PUBLIC unsigned pci_inl(U16_t port) {
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| 126 | U32_t value;
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| 127 | int s;
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| 128 | if ((s=sys_inl(port, &value)) !=OK)
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| 129 | printf("PCI: warning, sys_inl failed: %d\n", s);
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| 130 | return value;
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| 131 | }
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| 132 | PUBLIC void pci_outb(U16_t port, U8_t value) {
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| 133 | int s;
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| 134 | if ((s=sys_outb(port, value)) !=OK)
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| 135 | printf("PCI: warning, sys_outb failed: %d\n", s);
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| 136 | }
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| 137 | PUBLIC void pci_outw(U16_t port, U16_t value) {
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| 138 | int s;
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| 139 | if ((s=sys_outw(port, value)) !=OK)
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| 140 | printf("PCI: warning, sys_outw failed: %d\n", s);
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| 141 | }
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| 142 | PUBLIC void pci_outl(U16_t port, U32_t value) {
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| 143 | int s;
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| 144 | if ((s=sys_outl(port, value)) !=OK)
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| 145 | printf("PCI: warning, sys_outl failed: %d\n", s);
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| 146 | }
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| 147 |
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| 148 | /*===========================================================================*
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| 149 | * pci_init *
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| 150 | *===========================================================================*/
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| 151 | PUBLIC void pci_init()
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| 152 | {
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| 153 | static int first_time= 1;
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| 154 |
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| 155 | long v;
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| 156 |
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| 157 | if (!first_time)
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| 158 | return;
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| 159 |
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| 160 | v= 0;
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| 161 | env_parse("qemu_pci", "d", 0, &v, 0, 1);
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| 162 | qemu_pci= v;
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| 163 |
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| 164 | v= 0;
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| 165 | env_parse("pci_debug", "d", 0, &v, 0, 1);
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| 166 | debug= v;
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| 167 |
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| 168 | /* We don't expect to interrupted */
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| 169 | assert(first_time == 1);
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| 170 | first_time= -1;
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| 171 |
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| 172 | /* Only Intel (compatible) PCI controllers are supported at the
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| 173 | * moment.
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| 174 | */
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| 175 | pci_intel_init();
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| 176 |
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| 177 | first_time= 0;
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| 178 | }
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| 179 |
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| 180 | /*===========================================================================*
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| 181 | * pci_find_dev *
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| 182 | *===========================================================================*/
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| 183 | PUBLIC int pci_find_dev(bus, dev, func, devindp)
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| 184 | u8_t bus;
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| 185 | u8_t dev;
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| 186 | u8_t func;
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| 187 | int *devindp;
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| 188 | {
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| 189 | int devind;
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| 190 |
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| 191 | for (devind= 0; devind < nr_pcidev; devind++)
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| 192 | {
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| 193 | if (pcidev[devind].pd_busind == bus &&
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| 194 | pcidev[devind].pd_dev == dev &&
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| 195 | pcidev[devind].pd_func == func)
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| 196 | {
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| 197 | break;
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| 198 | }
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| 199 | }
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| 200 | if (devind >= nr_pcidev)
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| 201 | return 0;
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| 202 | if (pcidev[devind].pd_inuse)
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| 203 | return 0;
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| 204 | *devindp= devind;
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| 205 | return 1;
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| 206 | }
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| 207 |
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| 208 | /*===========================================================================*
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| 209 | * pci_first_dev *
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| 210 | *===========================================================================*/
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| 211 | PUBLIC int pci_first_dev(devindp, vidp, didp)
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| 212 | int *devindp;
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| 213 | u16_t *vidp;
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| 214 | u16_t *didp;
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| 215 | {
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| 216 | int devind;
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| 217 |
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| 218 | for (devind= 0; devind < nr_pcidev; devind++)
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| 219 | {
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| 220 | if (!pcidev[devind].pd_inuse)
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| 221 | break;
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| 222 | }
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| 223 | if (devind >= nr_pcidev)
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| 224 | return 0;
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| 225 | *devindp= devind;
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| 226 | *vidp= pcidev[devind].pd_vid;
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| 227 | *didp= pcidev[devind].pd_did;
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| 228 | return 1;
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| 229 | }
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| 230 |
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| 231 | /*===========================================================================*
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| 232 | * pci_next_dev *
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| 233 | *===========================================================================*/
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| 234 | PUBLIC int pci_next_dev(devindp, vidp, didp)
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| 235 | int *devindp;
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| 236 | u16_t *vidp;
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| 237 | u16_t *didp;
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| 238 | {
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| 239 | int devind;
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| 240 |
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| 241 | for (devind= *devindp+1; devind < nr_pcidev; devind++)
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| 242 | {
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| 243 | if (!pcidev[devind].pd_inuse)
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| 244 | break;
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| 245 | }
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| 246 | if (devind >= nr_pcidev)
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| 247 | return 0;
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| 248 | *devindp= devind;
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| 249 | *vidp= pcidev[devind].pd_vid;
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| 250 | *didp= pcidev[devind].pd_did;
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| 251 | return 1;
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| 252 | }
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| 253 |
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| 254 | /*===========================================================================*
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| 255 | * pci_reserve *
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| 256 | *===========================================================================*/
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| 257 | PUBLIC void pci_reserve(devind)
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| 258 | int devind;
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| 259 | {
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| 260 | assert(devind <= nr_pcidev);
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| 261 | assert(!pcidev[devind].pd_inuse);
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| 262 | pcidev[devind].pd_inuse= 1;
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| 263 | }
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| 264 |
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| 265 | /*===========================================================================*
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| 266 | * pci_ids *
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| 267 | *===========================================================================*/
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| 268 | PUBLIC void pci_ids(devind, vidp, didp)
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| 269 | int devind;
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| 270 | u16_t *vidp;
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| 271 | u16_t *didp;
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| 272 | {
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| 273 | assert(devind <= nr_pcidev);
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| 274 | *vidp= pcidev[devind].pd_vid;
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| 275 | *didp= pcidev[devind].pd_did;
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| 276 | }
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| 277 |
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| 278 | /*===========================================================================*
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| 279 | * pci_slot_name *
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| 280 | *===========================================================================*/
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| 281 | PUBLIC char *pci_slot_name(devind)
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| 282 | int devind;
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| 283 | {
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| 284 | static char label[]= "ddd.ddd.ddd";
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| 285 | char *end;
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| 286 | char *p;
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| 287 |
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| 288 | p= label;
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| 289 | end= label+sizeof(label);
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| 290 |
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| 291 | ntostr(pcidev[devind].pd_busind, &p, end);
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| 292 | *p++= '.';
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| 293 |
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| 294 | ntostr(pcidev[devind].pd_dev, &p, end);
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| 295 | *p++= '.';
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| 296 |
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| 297 | ntostr(pcidev[devind].pd_func, &p, end);
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| 298 |
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| 299 | return label;
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| 300 | }
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| 301 |
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| 302 | /*===========================================================================*
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| 303 | * pci_dev_name *
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| 304 | *===========================================================================*/
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| 305 | PUBLIC char *pci_dev_name(vid, did)
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| 306 | u16_t vid;
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| 307 | u16_t did;
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| 308 | {
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| 309 | int i;
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| 310 |
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| 311 | for (i= 0; pci_device_table[i].name; i++)
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| 312 | {
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| 313 | if (pci_device_table[i].vid == vid &&
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| 314 | pci_device_table[i].did == did)
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| 315 | {
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| 316 | return pci_device_table[i].name;
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| 317 | }
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| 318 | }
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| 319 | return NULL;
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| 320 | }
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| 321 |
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| 322 | /*===========================================================================*
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| 323 | * pci_attr_r8 *
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| 324 | *===========================================================================*/
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| 325 | PUBLIC u8_t pci_attr_r8(devind, port)
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| 326 | int devind;
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| 327 | int port;
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| 328 | {
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| 329 | int busind;
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| 330 |
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| 331 | busind= pcidev[devind].pd_busind;
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| 332 | return pcibus[busind].pb_rreg8(busind, devind, port);
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| 333 | }
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| 334 |
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| 335 | /*===========================================================================*
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| 336 | * pci_attr_r16 *
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| 337 | *===========================================================================*/
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| 338 | PUBLIC u16_t pci_attr_r16(devind, port)
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| 339 | int devind;
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| 340 | int port;
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| 341 | {
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| 342 | int busind;
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| 343 |
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| 344 | busind= pcidev[devind].pd_busind;
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| 345 | return pcibus[busind].pb_rreg16(busind, devind, port);
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| 346 | }
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| 347 |
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| 348 | /*===========================================================================*
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| 349 | * pci_attr_r32 *
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| 350 | *===========================================================================*/
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| 351 | PUBLIC u32_t pci_attr_r32(devind, port)
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| 352 | int devind;
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| 353 | int port;
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| 354 | {
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| 355 | int busind;
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| 356 |
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| 357 | busind= pcidev[devind].pd_busind;
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| 358 | return pcibus[busind].pb_rreg32(busind, devind, port);
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| 359 | }
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| 360 |
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| 361 | /*===========================================================================*
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| 362 | * pci_attr_w16 *
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| 363 | *===========================================================================*/
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| 364 | PUBLIC void pci_attr_w16(devind, port, value)
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| 365 | int devind;
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| 366 | int port;
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| 367 | u16_t value;
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| 368 | {
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| 369 | int busind;
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| 370 |
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| 371 | busind= pcidev[devind].pd_busind;
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| 372 | pcibus[busind].pb_wreg16(busind, devind, port, value);
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| 373 | }
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| 374 |
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| 375 | /*===========================================================================*
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| 376 | * pci_attr_w32 *
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| 377 | *===========================================================================*/
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| 378 | PUBLIC void pci_attr_w32(devind, port, value)
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| 379 | int devind;
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| 380 | int port;
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| 381 | u32_t value;
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| 382 | {
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| 383 | int busind;
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| 384 |
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| 385 | busind= pcidev[devind].pd_busind;
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| 386 | pcibus[busind].pb_wreg32(busind, devind, port, value);
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| 387 | }
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| 388 |
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| 389 | /*===========================================================================*
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| 390 | * pci_intel_init *
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| 391 | *===========================================================================*/
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| 392 | PRIVATE void pci_intel_init()
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| 393 | {
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| 394 | /* Try to detect a know PCI controller. Read the Vendor ID and
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| 395 | * the Device ID for function 0 of device 0.
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| 396 | * Two times the value 0xffff suggests a system without a (compatible)
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| 397 | * PCI controller. Only controllers with values listed in the table
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| 398 | * pci_intel_ctrl are actually used.
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| 399 | */
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| 400 | u32_t bus, dev, func;
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| 401 | u16_t vid, did;
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| 402 | int s, i, r, busind;
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| 403 | char *dstr;
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| 404 |
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| 405 | bus= 0;
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| 406 | dev= 0;
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| 407 | func= 0;
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| 408 |
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| 409 | vid= PCII_RREG16_(bus, dev, func, PCI_VID);
|
|---|
| 410 | did= PCII_RREG16_(bus, dev, func, PCI_DID);
|
|---|
| 411 | #if USER_SPACE
|
|---|
| 412 | if (OK != (s=sys_outl(PCII_CONFADD, PCII_UNSEL)))
|
|---|
| 413 | printf("PCI: warning, sys_outl failed: %d\n", s);
|
|---|
| 414 | #else
|
|---|
| 415 | outl(PCII_CONFADD, PCII_UNSEL);
|
|---|
| 416 | #endif
|
|---|
| 417 |
|
|---|
| 418 | if (vid == 0xffff && did == 0xffff)
|
|---|
| 419 | return; /* Nothing here */
|
|---|
| 420 |
|
|---|
| 421 | for (i= 0; pci_intel_ctrl[i].vid; i++)
|
|---|
| 422 | {
|
|---|
| 423 | if (pci_intel_ctrl[i].vid == vid &&
|
|---|
| 424 | pci_intel_ctrl[i].did == did)
|
|---|
| 425 | {
|
|---|
| 426 | break;
|
|---|
| 427 | }
|
|---|
| 428 | }
|
|---|
| 429 |
|
|---|
| 430 | if (!pci_intel_ctrl[i].vid)
|
|---|
| 431 | {
|
|---|
| 432 | printf("pci_intel_init (warning): unknown PCI-controller:\n"
|
|---|
| 433 | "\tvendor %04X (%s), device %04X\n",
|
|---|
| 434 | vid, pci_vid_name(vid), did);
|
|---|
| 435 | }
|
|---|
| 436 |
|
|---|
| 437 | if (nr_pcibus >= NR_PCIBUS)
|
|---|
| 438 | panic("PCI","too many PCI busses", nr_pcibus);
|
|---|
| 439 | busind= nr_pcibus;
|
|---|
| 440 | nr_pcibus++;
|
|---|
| 441 | pcibus[busind].pb_type= PBT_INTEL;
|
|---|
| 442 | pcibus[busind].pb_isabridge_dev= -1;
|
|---|
| 443 | pcibus[busind].pb_isabridge_type= 0;
|
|---|
| 444 | pcibus[busind].pb_devind= -1;
|
|---|
| 445 | pcibus[busind].pb_bus= 0;
|
|---|
| 446 | pcibus[busind].pb_rreg8= pcii_rreg8;
|
|---|
| 447 | pcibus[busind].pb_rreg16= pcii_rreg16;
|
|---|
| 448 | pcibus[busind].pb_rreg32= pcii_rreg32;
|
|---|
| 449 | pcibus[busind].pb_wreg16= pcii_wreg16;
|
|---|
| 450 | pcibus[busind].pb_wreg32= pcii_wreg32;
|
|---|
| 451 | pcibus[busind].pb_rsts= pcii_rsts;
|
|---|
| 452 | pcibus[busind].pb_wsts= pcii_wsts;
|
|---|
| 453 |
|
|---|
| 454 | dstr= pci_dev_name(vid, did);
|
|---|
| 455 | if (!dstr)
|
|---|
| 456 | dstr= "unknown device";
|
|---|
| 457 | if (debug)
|
|---|
| 458 | {
|
|---|
| 459 | printf("pci_intel_init: %s (%04X/%04X)\n",
|
|---|
| 460 | dstr, vid, did);
|
|---|
| 461 | }
|
|---|
| 462 |
|
|---|
| 463 | probe_bus(busind);
|
|---|
| 464 |
|
|---|
| 465 | r= do_isabridge(busind);
|
|---|
| 466 | if (r != OK)
|
|---|
| 467 | {
|
|---|
| 468 | /* Disable all devices for this bus */
|
|---|
| 469 | for (i= 0; i<nr_pcidev; i++)
|
|---|
| 470 | {
|
|---|
| 471 | if (pcidev[i].pd_busind != busind)
|
|---|
| 472 | continue;
|
|---|
| 473 | pcidev[i].pd_inuse= 1;
|
|---|
| 474 | }
|
|---|
| 475 | return;
|
|---|
| 476 | }
|
|---|
| 477 |
|
|---|
| 478 | /* Look for PCI bridges (for AGP) */
|
|---|
| 479 | do_pcibridge(busind);
|
|---|
| 480 | }
|
|---|
| 481 |
|
|---|
| 482 | /*===========================================================================*
|
|---|
| 483 | * probe_bus *
|
|---|
| 484 | *===========================================================================*/
|
|---|
| 485 | PRIVATE void probe_bus(busind)
|
|---|
| 486 | int busind;
|
|---|
| 487 | {
|
|---|
| 488 | u32_t dev, func;
|
|---|
| 489 | u16_t vid, did, sts;
|
|---|
| 490 | u8_t headt;
|
|---|
| 491 | u8_t baseclass, subclass, infclass;
|
|---|
| 492 | int devind;
|
|---|
| 493 | char *s, *dstr;
|
|---|
| 494 |
|
|---|
| 495 | #if DEBUG
|
|---|
| 496 | printf("probe_bus(%d)\n", busind);
|
|---|
| 497 | #endif
|
|---|
| 498 | if (nr_pcidev >= NR_PCIDEV)
|
|---|
| 499 | panic("PCI","too many PCI devices", nr_pcidev);
|
|---|
| 500 | devind= nr_pcidev;
|
|---|
| 501 |
|
|---|
| 502 | for (dev= 0; dev<32; dev++)
|
|---|
| 503 | {
|
|---|
| 504 |
|
|---|
| 505 | for (func= 0; func < 8; func++)
|
|---|
| 506 | {
|
|---|
| 507 | pcidev[devind].pd_busind= busind;
|
|---|
| 508 | pcidev[devind].pd_dev= dev;
|
|---|
| 509 | pcidev[devind].pd_func= func;
|
|---|
| 510 |
|
|---|
| 511 | pci_attr_wsts(devind,
|
|---|
| 512 | PSR_SSE|PSR_RMAS|PSR_RTAS);
|
|---|
| 513 | vid= pci_attr_r16(devind, PCI_VID);
|
|---|
| 514 | did= pci_attr_r16(devind, PCI_DID);
|
|---|
| 515 | headt= pci_attr_r8(devind, PCI_HEADT);
|
|---|
| 516 | sts= pci_attr_rsts(devind);
|
|---|
| 517 |
|
|---|
| 518 | if (vid == NO_VID)
|
|---|
| 519 | break; /* Nothing here */
|
|---|
| 520 |
|
|---|
| 521 | if (sts & (PSR_SSE|PSR_RMAS|PSR_RTAS))
|
|---|
| 522 | {
|
|---|
| 523 | if (qemu_pci)
|
|---|
| 524 | {
|
|---|
| 525 | printf(
|
|---|
| 526 | "pci: ignoring bad value 0x%x in sts for QEMU\n",
|
|---|
| 527 | sts & (PSR_SSE|PSR_RMAS|PSR_RTAS));
|
|---|
| 528 | }
|
|---|
| 529 | else
|
|---|
| 530 | break;
|
|---|
| 531 | }
|
|---|
| 532 |
|
|---|
| 533 | dstr= pci_dev_name(vid, did);
|
|---|
| 534 | if (debug)
|
|---|
| 535 | {
|
|---|
| 536 | if (dstr)
|
|---|
| 537 | {
|
|---|
| 538 | printf("%d.%lu.%lu: %s (%04X/%04X)\n",
|
|---|
| 539 | busind, (unsigned long)dev,
|
|---|
| 540 | (unsigned long)func, dstr,
|
|---|
| 541 | vid, did);
|
|---|
| 542 | }
|
|---|
| 543 | else
|
|---|
| 544 | {
|
|---|
| 545 | printf(
|
|---|
| 546 | "%d.%lu.%lu: Unknown device, vendor %04X (%s), device %04X\n",
|
|---|
| 547 | busind, (unsigned long)dev,
|
|---|
| 548 | (unsigned long)func, vid,
|
|---|
| 549 | pci_vid_name(vid), did);
|
|---|
| 550 | }
|
|---|
| 551 | }
|
|---|
| 552 |
|
|---|
| 553 | baseclass= pci_attr_r8(devind, PCI_BCR);
|
|---|
| 554 | subclass= pci_attr_r8(devind, PCI_SCR);
|
|---|
| 555 | infclass= pci_attr_r8(devind, PCI_PIFR);
|
|---|
| 556 | s= pci_subclass_name(baseclass, subclass, infclass);
|
|---|
| 557 | if (!s)
|
|---|
| 558 | s= pci_baseclass_name(baseclass);
|
|---|
| 559 | {
|
|---|
| 560 | if (!s)
|
|---|
| 561 | s= "(unknown class)";
|
|---|
| 562 | }
|
|---|
| 563 | if (debug)
|
|---|
| 564 | {
|
|---|
| 565 | printf("\tclass %s (%X/%X/%X)\n", s,
|
|---|
| 566 | baseclass, subclass, infclass);
|
|---|
| 567 | }
|
|---|
| 568 |
|
|---|
| 569 | devind= nr_pcidev;
|
|---|
| 570 | nr_pcidev++;
|
|---|
| 571 | pcidev[devind].pd_baseclass= baseclass;
|
|---|
| 572 | pcidev[devind].pd_subclass= subclass;
|
|---|
| 573 | pcidev[devind].pd_infclass= infclass;
|
|---|
| 574 | pcidev[devind].pd_vid= vid;
|
|---|
| 575 | pcidev[devind].pd_did= did;
|
|---|
| 576 | pcidev[devind].pd_inuse= 0;
|
|---|
| 577 |
|
|---|
| 578 | if (nr_pcidev >= NR_PCIDEV)
|
|---|
| 579 | panic("PCI","too many PCI devices", nr_pcidev);
|
|---|
| 580 | devind= nr_pcidev;
|
|---|
| 581 |
|
|---|
| 582 | if (func == 0 && !(headt & PHT_MULTIFUNC))
|
|---|
| 583 | break;
|
|---|
| 584 | }
|
|---|
| 585 | }
|
|---|
| 586 | }
|
|---|
| 587 |
|
|---|
| 588 | /*===========================================================================*
|
|---|
| 589 | * do_isabridge *
|
|---|
| 590 | *===========================================================================*/
|
|---|
| 591 | PRIVATE int do_isabridge(busind)
|
|---|
| 592 | int busind;
|
|---|
| 593 | {
|
|---|
| 594 | int unknown_bridge= -1;
|
|---|
| 595 | int bridge_dev= -1;
|
|---|
| 596 | int i, j, r, type;
|
|---|
| 597 | u16_t vid, did;
|
|---|
| 598 | char *dstr;
|
|---|
| 599 |
|
|---|
| 600 | j= 0; /* lint */
|
|---|
| 601 | vid= did= 0; /* lint */
|
|---|
| 602 | for (i= 0; i< nr_pcidev; i++)
|
|---|
| 603 | {
|
|---|
| 604 | if (pcidev[i].pd_busind != busind)
|
|---|
| 605 | continue;
|
|---|
| 606 | if (pcidev[i].pd_baseclass == 0x06 &&
|
|---|
| 607 | pcidev[i].pd_subclass == 0x01 &&
|
|---|
| 608 | pcidev[i].pd_infclass == 0x00)
|
|---|
| 609 | {
|
|---|
| 610 | /* ISA bridge. Report if no supported bridge is
|
|---|
| 611 | * found.
|
|---|
| 612 | */
|
|---|
| 613 | unknown_bridge= i;
|
|---|
| 614 | }
|
|---|
| 615 |
|
|---|
| 616 | vid= pcidev[i].pd_vid;
|
|---|
| 617 | did= pcidev[i].pd_did;
|
|---|
| 618 | for (j= 0; pci_isabridge[j].vid != 0; j++)
|
|---|
| 619 | {
|
|---|
| 620 | if (pci_isabridge[j].vid != vid)
|
|---|
| 621 | continue;
|
|---|
| 622 | if (pci_isabridge[j].did != did)
|
|---|
| 623 | continue;
|
|---|
| 624 | if (pci_isabridge[j].checkclass &&
|
|---|
| 625 | unknown_bridge != i)
|
|---|
| 626 | {
|
|---|
| 627 | /* This part of multifunction device is
|
|---|
| 628 | * not the bridge.
|
|---|
| 629 | */
|
|---|
| 630 | continue;
|
|---|
| 631 | }
|
|---|
| 632 | break;
|
|---|
| 633 | }
|
|---|
| 634 | if (pci_isabridge[j].vid)
|
|---|
| 635 | {
|
|---|
| 636 | bridge_dev= i;
|
|---|
| 637 | break;
|
|---|
| 638 | }
|
|---|
| 639 | }
|
|---|
| 640 |
|
|---|
| 641 | if (bridge_dev != -1)
|
|---|
| 642 | {
|
|---|
| 643 | dstr= pci_dev_name(vid, did);
|
|---|
| 644 | if (!dstr)
|
|---|
| 645 | dstr= "unknown device";
|
|---|
| 646 | if (debug)
|
|---|
| 647 | {
|
|---|
| 648 | printf("found ISA bridge (%04X/%04X) %s\n",
|
|---|
| 649 | vid, did, dstr);
|
|---|
| 650 | }
|
|---|
| 651 | pcibus[busind].pb_isabridge_dev= bridge_dev;
|
|---|
| 652 | type= pci_isabridge[j].type;
|
|---|
| 653 | pcibus[busind].pb_isabridge_type= type;
|
|---|
| 654 | switch(type)
|
|---|
| 655 | {
|
|---|
| 656 | case PCI_IB_PIIX:
|
|---|
| 657 | r= do_piix(bridge_dev);
|
|---|
| 658 | break;
|
|---|
| 659 | case PCI_IB_VIA:
|
|---|
| 660 | r= do_via_isabr(bridge_dev);
|
|---|
| 661 | break;
|
|---|
| 662 | case PCI_IB_AMD:
|
|---|
| 663 | r= do_amd_isabr(bridge_dev);
|
|---|
| 664 | break;
|
|---|
| 665 | case PCI_IB_SIS:
|
|---|
| 666 | r= do_sis_isabr(bridge_dev);
|
|---|
| 667 | break;
|
|---|
| 668 | default:
|
|---|
| 669 | panic("PCI","unknown ISA bridge type", type);
|
|---|
| 670 | }
|
|---|
| 671 | return r;
|
|---|
| 672 | }
|
|---|
| 673 |
|
|---|
| 674 | if (unknown_bridge == -1)
|
|---|
| 675 | {
|
|---|
| 676 | printf("(warning) no ISA bridge found on bus %d", busind);
|
|---|
| 677 | return 0;
|
|---|
| 678 | }
|
|---|
| 679 | printf("(warning) unsupported ISA bridge %04X/%04X for bus %d\n",
|
|---|
| 680 | pcidev[unknown_bridge].pd_vid,
|
|---|
| 681 | pcidev[unknown_bridge].pd_did,
|
|---|
| 682 | busind);
|
|---|
| 683 | return 0;
|
|---|
| 684 | }
|
|---|
| 685 |
|
|---|
| 686 | /*===========================================================================*
|
|---|
| 687 | * do_pcibridge *
|
|---|
| 688 | *===========================================================================*/
|
|---|
| 689 | PRIVATE void do_pcibridge(busind)
|
|---|
| 690 | int busind;
|
|---|
| 691 | {
|
|---|
| 692 | int devind, i;
|
|---|
| 693 | int ind, type;
|
|---|
| 694 | u16_t vid, did;
|
|---|
| 695 | u8_t sbusn, baseclass, subclass, infclass;
|
|---|
| 696 | u32_t t3;
|
|---|
| 697 |
|
|---|
| 698 | vid= did= 0; /* lint */
|
|---|
| 699 | for (devind= 0; devind< nr_pcidev; devind++)
|
|---|
| 700 | {
|
|---|
| 701 | if (pcidev[devind].pd_busind != busind)
|
|---|
| 702 | continue;
|
|---|
| 703 |
|
|---|
| 704 | vid= pcidev[devind].pd_vid;
|
|---|
| 705 | did= pcidev[devind].pd_did;
|
|---|
| 706 | for (i= 0; pci_pcibridge[i].vid != 0; i++)
|
|---|
| 707 | {
|
|---|
| 708 | if (pci_pcibridge[i].vid != vid)
|
|---|
| 709 | continue;
|
|---|
| 710 | if (pci_pcibridge[i].did != did)
|
|---|
| 711 | continue;
|
|---|
| 712 | break;
|
|---|
| 713 | }
|
|---|
| 714 | if (pci_pcibridge[i].vid == 0)
|
|---|
| 715 | {
|
|---|
| 716 | if (debug)
|
|---|
| 717 | {
|
|---|
| 718 | /* Report unsupported bridges */
|
|---|
| 719 | baseclass= pci_attr_r8(devind, PCI_BCR);
|
|---|
| 720 | subclass= pci_attr_r8(devind, PCI_SCR);
|
|---|
| 721 | infclass= pci_attr_r8(devind, PCI_PIFR);
|
|---|
| 722 | t3= ((baseclass << 16) | (subclass << 8) |
|
|---|
| 723 | infclass);
|
|---|
| 724 | if (t3 != PCI_T3_PCI2PCI &&
|
|---|
| 725 | t3 != PCI_T3_PCI2PCI_SUBTR)
|
|---|
| 726 | {
|
|---|
| 727 | /* No a PCI-to-PCI bridge */
|
|---|
| 728 | continue;
|
|---|
| 729 | }
|
|---|
| 730 | printf(
|
|---|
| 731 | "Ignoring unknown PCI-to-PCI bridge: %04X/%04X\n",
|
|---|
| 732 | vid, did);
|
|---|
| 733 | }
|
|---|
| 734 | continue;
|
|---|
| 735 | }
|
|---|
| 736 | type= pci_pcibridge[i].type;
|
|---|
| 737 |
|
|---|
| 738 | if (debug)
|
|---|
| 739 | printf("PCI-to-PCI bridge: %04X/%04X\n", vid, did);
|
|---|
| 740 |
|
|---|
| 741 | /* Assume that the BIOS initialized the secondary bus
|
|---|
| 742 | * number.
|
|---|
| 743 | */
|
|---|
| 744 | sbusn= pci_attr_r8(devind, PPB_SBUSN);
|
|---|
| 745 | #if DEBUG
|
|---|
| 746 | printf("sbusn = %d\n", sbusn);
|
|---|
| 747 | #endif
|
|---|
| 748 |
|
|---|
| 749 | if (nr_pcibus >= NR_PCIBUS)
|
|---|
| 750 | panic("PCI","too many PCI busses", nr_pcibus);
|
|---|
| 751 | ind= nr_pcibus;
|
|---|
| 752 | nr_pcibus++;
|
|---|
| 753 | pcibus[ind].pb_type= PBT_PCIBRIDGE;
|
|---|
| 754 | pcibus[ind].pb_isabridge_dev= -1;
|
|---|
| 755 | pcibus[ind].pb_isabridge_type= 0;
|
|---|
| 756 | pcibus[ind].pb_devind= devind;
|
|---|
| 757 | pcibus[ind].pb_bus= sbusn;
|
|---|
| 758 | pcibus[ind].pb_rreg8= pcibus[busind].pb_rreg8;
|
|---|
| 759 | pcibus[ind].pb_rreg16= pcibus[busind].pb_rreg16;
|
|---|
| 760 | pcibus[ind].pb_rreg32= pcibus[busind].pb_rreg32;
|
|---|
| 761 | pcibus[ind].pb_wreg16= pcibus[busind].pb_wreg16;
|
|---|
| 762 | pcibus[ind].pb_wreg32= pcibus[busind].pb_wreg32;
|
|---|
| 763 | switch(type)
|
|---|
| 764 | {
|
|---|
| 765 | case PCI_PCIB_INTEL:
|
|---|
| 766 | case PCI_AGPB_INTEL:
|
|---|
| 767 | pcibus[ind].pb_rsts= pcibr_intel_rsts;
|
|---|
| 768 | pcibus[ind].pb_wsts= pcibr_intel_wsts;
|
|---|
| 769 | break;
|
|---|
| 770 | case PCI_AGPB_VIA:
|
|---|
| 771 | pcibus[ind].pb_rsts= pcibr_via_rsts;
|
|---|
| 772 | pcibus[ind].pb_wsts= pcibr_via_wsts;
|
|---|
| 773 | break;
|
|---|
| 774 | default:
|
|---|
| 775 | panic("PCI","unknown PCI-PCI bridge type", type);
|
|---|
| 776 | }
|
|---|
| 777 |
|
|---|
| 778 | probe_bus(ind);
|
|---|
| 779 | }
|
|---|
| 780 | }
|
|---|
| 781 |
|
|---|
| 782 | /*===========================================================================*
|
|---|
| 783 | * do_piix *
|
|---|
| 784 | *===========================================================================*/
|
|---|
| 785 | PRIVATE int do_piix(devind)
|
|---|
| 786 | int devind;
|
|---|
| 787 | {
|
|---|
| 788 | int i, s, dev, func, irqrc, irq;
|
|---|
| 789 | u16_t elcr1, elcr2, elcr;
|
|---|
| 790 |
|
|---|
| 791 | #if DEBUG
|
|---|
| 792 | printf("in piix\n");
|
|---|
| 793 | #endif
|
|---|
| 794 | dev= pcidev[devind].pd_dev;
|
|---|
| 795 | func= pcidev[devind].pd_func;
|
|---|
| 796 | #if USER_SPACE
|
|---|
| 797 | if (OK != (s=sys_inb(PIIX_ELCR1, &elcr1)))
|
|---|
| 798 | printf("Warning, sys_inb failed: %d\n", s);
|
|---|
| 799 | if (OK != (s=sys_inb(PIIX_ELCR2, &elcr2)))
|
|---|
| 800 | printf("Warning, sys_inb failed: %d\n", s);
|
|---|
| 801 | #else
|
|---|
| 802 | elcr1= inb(PIIX_ELCR1);
|
|---|
| 803 | elcr2= inb(PIIX_ELCR2);
|
|---|
| 804 | #endif
|
|---|
| 805 | elcr= elcr1 | (elcr2 << 8);
|
|---|
| 806 | for (i= 0; i<4; i++)
|
|---|
| 807 | {
|
|---|
| 808 | irqrc= pci_attr_r8(devind, PIIX_PIRQRCA+i);
|
|---|
| 809 | if (irqrc & PIIX_IRQ_DI)
|
|---|
| 810 | {
|
|---|
| 811 | if (debug)
|
|---|
| 812 | printf("INT%c: disabled\n", 'A'+i);
|
|---|
| 813 | }
|
|---|
| 814 | else
|
|---|
| 815 | {
|
|---|
| 816 | irq= irqrc & PIIX_IRQ_MASK;
|
|---|
| 817 | if (debug)
|
|---|
| 818 | printf("INT%c: %d\n", 'A'+i, irq);
|
|---|
| 819 | if (!(elcr & (1 << irq)))
|
|---|
| 820 | {
|
|---|
| 821 | if (debug)
|
|---|
| 822 | {
|
|---|
| 823 | printf(
|
|---|
| 824 | "(warning) IRQ %d is not level triggered\n",
|
|---|
| 825 | irq);
|
|---|
| 826 | }
|
|---|
| 827 | }
|
|---|
| 828 | irq_mode_pci(irq);
|
|---|
| 829 | }
|
|---|
| 830 | }
|
|---|
| 831 | return 0;
|
|---|
| 832 | }
|
|---|
| 833 |
|
|---|
| 834 | /*===========================================================================*
|
|---|
| 835 | * do_amd_isabr *
|
|---|
| 836 | *===========================================================================*/
|
|---|
| 837 | PRIVATE int do_amd_isabr(devind)
|
|---|
| 838 | int devind;
|
|---|
| 839 | {
|
|---|
| 840 | int i, bus, dev, func, xdevind, irq, edge;
|
|---|
| 841 | u8_t levmask;
|
|---|
| 842 | u16_t pciirq;
|
|---|
| 843 |
|
|---|
| 844 | /* Find required function */
|
|---|
| 845 | func= AMD_ISABR_FUNC;
|
|---|
| 846 | bus= pcidev[devind].pd_busind;
|
|---|
| 847 | dev= pcidev[devind].pd_dev;
|
|---|
| 848 |
|
|---|
| 849 | /* Fake a device with the required function */
|
|---|
| 850 | if (nr_pcidev >= NR_PCIDEV)
|
|---|
| 851 | panic("PCI","too many PCI devices", nr_pcidev);
|
|---|
| 852 | xdevind= nr_pcidev;
|
|---|
| 853 | pcidev[xdevind].pd_busind= bus;
|
|---|
| 854 | pcidev[xdevind].pd_dev= dev;
|
|---|
| 855 | pcidev[xdevind].pd_func= func;
|
|---|
| 856 | pcidev[xdevind].pd_inuse= 1;
|
|---|
| 857 | nr_pcidev++;
|
|---|
| 858 |
|
|---|
| 859 | levmask= pci_attr_r8(xdevind, AMD_ISABR_PCIIRQ_LEV);
|
|---|
| 860 | pciirq= pci_attr_r16(xdevind, AMD_ISABR_PCIIRQ_ROUTE);
|
|---|
| 861 | for (i= 0; i<4; i++)
|
|---|
| 862 | {
|
|---|
| 863 | edge= (levmask >> i) & 1;
|
|---|
| 864 | irq= (pciirq >> (4*i)) & 0xf;
|
|---|
| 865 | if (!irq)
|
|---|
| 866 | {
|
|---|
| 867 | if (debug)
|
|---|
| 868 | printf("INT%c: disabled\n", 'A'+i);
|
|---|
| 869 | }
|
|---|
| 870 | else
|
|---|
| 871 | {
|
|---|
| 872 | if (debug)
|
|---|
| 873 | printf("INT%c: %d\n", 'A'+i, irq);
|
|---|
| 874 | if (edge && debug)
|
|---|
| 875 | {
|
|---|
| 876 | printf(
|
|---|
| 877 | "(warning) IRQ %d is not level triggered\n",
|
|---|
| 878 | irq);
|
|---|
| 879 | }
|
|---|
| 880 | irq_mode_pci(irq);
|
|---|
| 881 | }
|
|---|
| 882 | }
|
|---|
| 883 | nr_pcidev--;
|
|---|
| 884 | return 0;
|
|---|
| 885 | }
|
|---|
| 886 |
|
|---|
| 887 | /*===========================================================================*
|
|---|
| 888 | * do_sis_isabr *
|
|---|
| 889 | *===========================================================================*/
|
|---|
| 890 | PRIVATE int do_sis_isabr(devind)
|
|---|
| 891 | int devind;
|
|---|
| 892 | {
|
|---|
| 893 | int i, dev, func, irq;
|
|---|
| 894 |
|
|---|
| 895 | dev= pcidev[devind].pd_dev;
|
|---|
| 896 | func= pcidev[devind].pd_func;
|
|---|
| 897 | irq= 0; /* lint */
|
|---|
| 898 | for (i= 0; i<4; i++)
|
|---|
| 899 | {
|
|---|
| 900 | irq= pci_attr_r8(devind, SIS_ISABR_IRQ_A+i);
|
|---|
| 901 | if (irq & SIS_IRQ_DISABLED)
|
|---|
| 902 | {
|
|---|
| 903 | if (debug)
|
|---|
| 904 | printf("INT%c: disabled\n", 'A'+i);
|
|---|
| 905 | }
|
|---|
| 906 | else
|
|---|
| 907 | {
|
|---|
| 908 | irq &= SIS_IRQ_MASK;
|
|---|
| 909 | if (debug)
|
|---|
| 910 | printf("INT%c: %d\n", 'A'+i, irq);
|
|---|
| 911 | irq_mode_pci(irq);
|
|---|
| 912 | }
|
|---|
| 913 | }
|
|---|
| 914 | return 0;
|
|---|
| 915 | }
|
|---|
| 916 |
|
|---|
| 917 | /*===========================================================================*
|
|---|
| 918 | * do_via_isabr *
|
|---|
| 919 | *===========================================================================*/
|
|---|
| 920 | PRIVATE int do_via_isabr(devind)
|
|---|
| 921 | int devind;
|
|---|
| 922 | {
|
|---|
| 923 | int i, dev, func, irq, edge;
|
|---|
| 924 | u8_t levmask;
|
|---|
| 925 |
|
|---|
| 926 | dev= pcidev[devind].pd_dev;
|
|---|
| 927 | func= pcidev[devind].pd_func;
|
|---|
| 928 | levmask= pci_attr_r8(devind, VIA_ISABR_EL);
|
|---|
| 929 | irq= 0; /* lint */
|
|---|
| 930 | edge= 0; /* lint */
|
|---|
| 931 | for (i= 0; i<4; i++)
|
|---|
| 932 | {
|
|---|
| 933 | switch(i)
|
|---|
| 934 | {
|
|---|
| 935 | case 0:
|
|---|
| 936 | edge= (levmask & VIA_ISABR_EL_INTA);
|
|---|
| 937 | irq= pci_attr_r8(devind, VIA_ISABR_IRQ_R2) >> 4;
|
|---|
| 938 | break;
|
|---|
| 939 | case 1:
|
|---|
| 940 | edge= (levmask & VIA_ISABR_EL_INTB);
|
|---|
| 941 | irq= pci_attr_r8(devind, VIA_ISABR_IRQ_R2);
|
|---|
| 942 | break;
|
|---|
| 943 | case 2:
|
|---|
| 944 | edge= (levmask & VIA_ISABR_EL_INTC);
|
|---|
| 945 | irq= pci_attr_r8(devind, VIA_ISABR_IRQ_R3) >> 4;
|
|---|
| 946 | break;
|
|---|
| 947 | case 3:
|
|---|
| 948 | edge= (levmask & VIA_ISABR_EL_INTD);
|
|---|
| 949 | irq= pci_attr_r8(devind, VIA_ISABR_IRQ_R1) >> 4;
|
|---|
| 950 | break;
|
|---|
| 951 | default:
|
|---|
| 952 | assert(0);
|
|---|
| 953 | }
|
|---|
| 954 | irq &= 0xf;
|
|---|
| 955 | if (!irq)
|
|---|
| 956 | {
|
|---|
| 957 | if (debug)
|
|---|
| 958 | printf("INT%c: disabled\n", 'A'+i);
|
|---|
| 959 | }
|
|---|
| 960 | else
|
|---|
| 961 | {
|
|---|
| 962 | if (debug)
|
|---|
| 963 | printf("INT%c: %d\n", 'A'+i, irq);
|
|---|
| 964 | if (edge && debug)
|
|---|
| 965 | {
|
|---|
| 966 | printf(
|
|---|
| 967 | "(warning) IRQ %d is not level triggered\n",
|
|---|
| 968 | irq);
|
|---|
| 969 | }
|
|---|
| 970 | irq_mode_pci(irq);
|
|---|
| 971 | }
|
|---|
| 972 | }
|
|---|
| 973 | return 0;
|
|---|
| 974 | }
|
|---|
| 975 |
|
|---|
| 976 | /*===========================================================================*
|
|---|
| 977 | * pci_vid_name *
|
|---|
| 978 | *===========================================================================*/
|
|---|
| 979 | PRIVATE char *pci_vid_name(vid)
|
|---|
| 980 | u16_t vid;
|
|---|
| 981 | {
|
|---|
| 982 | int i;
|
|---|
| 983 |
|
|---|
| 984 | for (i= 0; pci_vendor_table[i].name; i++)
|
|---|
| 985 | {
|
|---|
| 986 | if (pci_vendor_table[i].vid == vid)
|
|---|
| 987 | return pci_vendor_table[i].name;
|
|---|
| 988 | }
|
|---|
| 989 | return "unknown";
|
|---|
| 990 | }
|
|---|
| 991 |
|
|---|
| 992 | /*===========================================================================*
|
|---|
| 993 | * pci_baseclass_name *
|
|---|
| 994 | *===========================================================================*/
|
|---|
| 995 | PRIVATE char *pci_baseclass_name(baseclass)
|
|---|
| 996 | u8_t baseclass;
|
|---|
| 997 | {
|
|---|
| 998 | int i;
|
|---|
| 999 |
|
|---|
| 1000 | for (i= 0; pci_baseclass_table[i].name; i++)
|
|---|
| 1001 | {
|
|---|
| 1002 | if (pci_baseclass_table[i].baseclass == baseclass)
|
|---|
| 1003 | return pci_baseclass_table[i].name;
|
|---|
| 1004 | }
|
|---|
| 1005 | return NULL;
|
|---|
| 1006 | }
|
|---|
| 1007 |
|
|---|
| 1008 | /*===========================================================================*
|
|---|
| 1009 | * pci_subclass_name *
|
|---|
| 1010 | *===========================================================================*/
|
|---|
| 1011 | PRIVATE char *pci_subclass_name(baseclass, subclass, infclass)
|
|---|
| 1012 | u8_t baseclass;
|
|---|
| 1013 | u8_t subclass;
|
|---|
| 1014 | u8_t infclass;
|
|---|
| 1015 | {
|
|---|
| 1016 | int i;
|
|---|
| 1017 |
|
|---|
| 1018 | for (i= 0; pci_subclass_table[i].name; i++)
|
|---|
| 1019 | {
|
|---|
| 1020 | if (pci_subclass_table[i].baseclass != baseclass)
|
|---|
| 1021 | continue;
|
|---|
| 1022 | if (pci_subclass_table[i].subclass != subclass)
|
|---|
| 1023 | continue;
|
|---|
| 1024 | if (pci_subclass_table[i].infclass != infclass &&
|
|---|
| 1025 | pci_subclass_table[i].infclass != (u16_t)-1)
|
|---|
| 1026 | {
|
|---|
| 1027 | continue;
|
|---|
| 1028 | }
|
|---|
| 1029 | return pci_subclass_table[i].name;
|
|---|
| 1030 | }
|
|---|
| 1031 | return NULL;
|
|---|
| 1032 | }
|
|---|
| 1033 |
|
|---|
| 1034 | /*===========================================================================*
|
|---|
| 1035 | * ntostr *
|
|---|
| 1036 | *===========================================================================*/
|
|---|
| 1037 | PRIVATE void ntostr(n, str, end)
|
|---|
| 1038 | unsigned n;
|
|---|
| 1039 | char **str;
|
|---|
| 1040 | char *end;
|
|---|
| 1041 | {
|
|---|
| 1042 | char tmpstr[20];
|
|---|
| 1043 | int i;
|
|---|
| 1044 |
|
|---|
| 1045 | if (n == 0)
|
|---|
| 1046 | {
|
|---|
| 1047 | tmpstr[0]= '0';
|
|---|
| 1048 | i= 1;
|
|---|
| 1049 | }
|
|---|
| 1050 | else
|
|---|
| 1051 | {
|
|---|
| 1052 | for (i= 0; n; i++)
|
|---|
| 1053 | {
|
|---|
| 1054 | tmpstr[i]= '0' + (n%10);
|
|---|
| 1055 | n /= 10;
|
|---|
| 1056 | }
|
|---|
| 1057 | }
|
|---|
| 1058 | for (; i>0; i--)
|
|---|
| 1059 | {
|
|---|
| 1060 | if (*str == end)
|
|---|
| 1061 | {
|
|---|
| 1062 | break;
|
|---|
| 1063 | }
|
|---|
| 1064 | **str= tmpstr[i-1];
|
|---|
| 1065 | (*str)++;
|
|---|
| 1066 | }
|
|---|
| 1067 | if (*str == end)
|
|---|
| 1068 | end[-1]= '\0';
|
|---|
| 1069 | else
|
|---|
| 1070 | **str= '\0';
|
|---|
| 1071 | }
|
|---|
| 1072 |
|
|---|
| 1073 | /*===========================================================================*
|
|---|
| 1074 | * pci_attr_rsts *
|
|---|
| 1075 | *===========================================================================*/
|
|---|
| 1076 | PRIVATE u16_t pci_attr_rsts(devind)
|
|---|
| 1077 | int devind;
|
|---|
| 1078 | {
|
|---|
| 1079 | int busind;
|
|---|
| 1080 |
|
|---|
| 1081 | busind= pcidev[devind].pd_busind;
|
|---|
| 1082 | return pcibus[busind].pb_rsts(busind);
|
|---|
| 1083 | }
|
|---|
| 1084 |
|
|---|
| 1085 |
|
|---|
| 1086 | /*===========================================================================*
|
|---|
| 1087 | * pcibr_intel_rsts *
|
|---|
| 1088 | *===========================================================================*/
|
|---|
| 1089 | PRIVATE u16_t pcibr_intel_rsts(busind)
|
|---|
| 1090 | int busind;
|
|---|
| 1091 | {
|
|---|
| 1092 | int devind;
|
|---|
| 1093 | devind= pcibus[busind].pb_devind;
|
|---|
| 1094 |
|
|---|
| 1095 | return pci_attr_r16(devind, PPB_SSTS);
|
|---|
| 1096 | }
|
|---|
| 1097 |
|
|---|
| 1098 | /*===========================================================================*
|
|---|
| 1099 | * pcibr_intel_wsts *
|
|---|
| 1100 | *===========================================================================*/
|
|---|
| 1101 | PRIVATE void pcibr_intel_wsts(busind, value)
|
|---|
| 1102 | int busind;
|
|---|
| 1103 | u16_t value;
|
|---|
| 1104 | {
|
|---|
| 1105 | int devind;
|
|---|
| 1106 | devind= pcibus[busind].pb_devind;
|
|---|
| 1107 |
|
|---|
| 1108 | #if 0
|
|---|
| 1109 | printf("pcibr_intel_wsts(%d, 0x%X), devind= %d\n",
|
|---|
| 1110 | busind, value, devind);
|
|---|
| 1111 | #endif
|
|---|
| 1112 | pci_attr_w16(devind, PPB_SSTS, value);
|
|---|
| 1113 | }
|
|---|
| 1114 |
|
|---|
| 1115 | /*===========================================================================*
|
|---|
| 1116 | * pcibr_via_rsts *
|
|---|
| 1117 | *===========================================================================*/
|
|---|
| 1118 | PRIVATE u16_t pcibr_via_rsts(busind)
|
|---|
| 1119 | int busind;
|
|---|
| 1120 | {
|
|---|
| 1121 | int devind;
|
|---|
| 1122 | devind= pcibus[busind].pb_devind;
|
|---|
| 1123 |
|
|---|
| 1124 | return 0;
|
|---|
| 1125 | }
|
|---|
| 1126 |
|
|---|
| 1127 | /*===========================================================================*
|
|---|
| 1128 | * pcibr_via_wsts *
|
|---|
| 1129 | *===========================================================================*/
|
|---|
| 1130 | PRIVATE void pcibr_via_wsts(busind, value)
|
|---|
| 1131 | int busind;
|
|---|
| 1132 | u16_t value;
|
|---|
| 1133 | {
|
|---|
| 1134 | int devind;
|
|---|
| 1135 | devind= pcibus[busind].pb_devind;
|
|---|
| 1136 |
|
|---|
| 1137 | #if 0
|
|---|
| 1138 | printf("pcibr_via_wsts(%d, 0x%X), devind= %d (not implemented)\n",
|
|---|
| 1139 | busind, value, devind);
|
|---|
| 1140 | #endif
|
|---|
| 1141 | }
|
|---|
| 1142 |
|
|---|
| 1143 | /*===========================================================================*
|
|---|
| 1144 | * pci_attr_wsts *
|
|---|
| 1145 | *===========================================================================*/
|
|---|
| 1146 | PRIVATE void pci_attr_wsts(devind, value)
|
|---|
| 1147 | int devind;
|
|---|
| 1148 | u16_t value;
|
|---|
| 1149 | {
|
|---|
| 1150 | int busind;
|
|---|
| 1151 |
|
|---|
| 1152 | busind= pcidev[devind].pd_busind;
|
|---|
| 1153 | pcibus[busind].pb_wsts(busind, value);
|
|---|
| 1154 | }
|
|---|
| 1155 |
|
|---|
| 1156 |
|
|---|
| 1157 | /*===========================================================================*
|
|---|
| 1158 | * pcii_rreg8 *
|
|---|
| 1159 | *===========================================================================*/
|
|---|
| 1160 | PRIVATE u8_t pcii_rreg8(busind, devind, port)
|
|---|
| 1161 | int busind;
|
|---|
| 1162 | int devind;
|
|---|
| 1163 | int port;
|
|---|
| 1164 | {
|
|---|
| 1165 | u8_t v;
|
|---|
| 1166 | int s;
|
|---|
| 1167 |
|
|---|
| 1168 | v= PCII_RREG8_(pcibus[busind].pb_bus,
|
|---|
| 1169 | pcidev[devind].pd_dev, pcidev[devind].pd_func,
|
|---|
| 1170 | port);
|
|---|
| 1171 | #if USER_SPACE
|
|---|
| 1172 | if (OK != (s=sys_outl(PCII_CONFADD, PCII_UNSEL)))
|
|---|
| 1173 | printf("PCI: warning, sys_outl failed: %d\n", s);
|
|---|
| 1174 | #else
|
|---|
| 1175 | outl(PCII_CONFADD, PCII_UNSEL);
|
|---|
| 1176 | #endif
|
|---|
| 1177 | #if 0
|
|---|
| 1178 | printf("pcii_rreg8(%d, %d, 0x%X): %d.%d.%d= 0x%X\n",
|
|---|
| 1179 | busind, devind, port,
|
|---|
| 1180 | pcibus[busind].pb_bus, pcidev[devind].pd_dev,
|
|---|
| 1181 | pcidev[devind].pd_func, v);
|
|---|
| 1182 | #endif
|
|---|
| 1183 | return v;
|
|---|
| 1184 | }
|
|---|
| 1185 |
|
|---|
| 1186 | /*===========================================================================*
|
|---|
| 1187 | * pcii_rreg16 *
|
|---|
| 1188 | *===========================================================================*/
|
|---|
| 1189 | PRIVATE u16_t pcii_rreg16(busind, devind, port)
|
|---|
| 1190 | int busind;
|
|---|
| 1191 | int devind;
|
|---|
| 1192 | int port;
|
|---|
| 1193 | {
|
|---|
| 1194 | u16_t v;
|
|---|
| 1195 | int s;
|
|---|
| 1196 |
|
|---|
| 1197 | v= PCII_RREG16_(pcibus[busind].pb_bus,
|
|---|
| 1198 | pcidev[devind].pd_dev, pcidev[devind].pd_func,
|
|---|
| 1199 | port);
|
|---|
| 1200 | #if USER_SPACE
|
|---|
| 1201 | if (OK != (s=sys_outl(PCII_CONFADD, PCII_UNSEL)))
|
|---|
| 1202 | printf("PCI: warning, sys_outl failed: %d\n");
|
|---|
| 1203 | #else
|
|---|
| 1204 | outl(PCII_CONFADD, PCII_UNSEL);
|
|---|
| 1205 | #endif
|
|---|
| 1206 | #if 0
|
|---|
| 1207 | printf("pcii_rreg16(%d, %d, 0x%X): %d.%d.%d= 0x%X\n",
|
|---|
| 1208 | busind, devind, port,
|
|---|
| 1209 | pcibus[busind].pb_bus, pcidev[devind].pd_dev,
|
|---|
| 1210 | pcidev[devind].pd_func, v);
|
|---|
| 1211 | #endif
|
|---|
| 1212 | return v;
|
|---|
| 1213 | }
|
|---|
| 1214 |
|
|---|
| 1215 | /*===========================================================================*
|
|---|
| 1216 | * pcii_rreg32 *
|
|---|
| 1217 | *===========================================================================*/
|
|---|
| 1218 | PRIVATE u32_t pcii_rreg32(busind, devind, port)
|
|---|
| 1219 | int busind;
|
|---|
| 1220 | int devind;
|
|---|
| 1221 | int port;
|
|---|
| 1222 | {
|
|---|
| 1223 | u32_t v;
|
|---|
| 1224 | int s;
|
|---|
| 1225 |
|
|---|
| 1226 | v= PCII_RREG32_(pcibus[busind].pb_bus,
|
|---|
| 1227 | pcidev[devind].pd_dev, pcidev[devind].pd_func,
|
|---|
| 1228 | port);
|
|---|
| 1229 | #if USER_SPACE
|
|---|
| 1230 | if (OK != (s=sys_outl(PCII_CONFADD, PCII_UNSEL)))
|
|---|
| 1231 | printf("PCI: warning, sys_outl failed: %d\n", s);
|
|---|
| 1232 | #else
|
|---|
| 1233 | outl(PCII_CONFADD, PCII_UNSEL);
|
|---|
| 1234 | #endif
|
|---|
| 1235 | #if 0
|
|---|
| 1236 | printf("pcii_rreg32(%d, %d, 0x%X): %d.%d.%d= 0x%X\n",
|
|---|
| 1237 | busind, devind, port,
|
|---|
| 1238 | pcibus[busind].pb_bus, pcidev[devind].pd_dev,
|
|---|
| 1239 | pcidev[devind].pd_func, v);
|
|---|
| 1240 | #endif
|
|---|
| 1241 | return v;
|
|---|
| 1242 | }
|
|---|
| 1243 |
|
|---|
| 1244 | /*===========================================================================*
|
|---|
| 1245 | * pcii_wreg16 *
|
|---|
| 1246 | *===========================================================================*/
|
|---|
| 1247 | PRIVATE void pcii_wreg16(busind, devind, port, value)
|
|---|
| 1248 | int busind;
|
|---|
| 1249 | int devind;
|
|---|
| 1250 | int port;
|
|---|
| 1251 | u16_t value;
|
|---|
| 1252 | {
|
|---|
| 1253 | int s;
|
|---|
| 1254 | #if 0
|
|---|
| 1255 | printf("pcii_wreg16(%d, %d, 0x%X, 0x%X): %d.%d.%d\n",
|
|---|
| 1256 | busind, devind, port, value,
|
|---|
| 1257 | pcibus[busind].pb_bus, pcidev[devind].pd_dev,
|
|---|
| 1258 | pcidev[devind].pd_func);
|
|---|
| 1259 | #endif
|
|---|
| 1260 | PCII_WREG16_(pcibus[busind].pb_bus,
|
|---|
| 1261 | pcidev[devind].pd_dev, pcidev[devind].pd_func,
|
|---|
| 1262 | port, value);
|
|---|
| 1263 | #if USER_SPACE
|
|---|
| 1264 | if (OK != (s=sys_outl(PCII_CONFADD, PCII_UNSEL)))
|
|---|
| 1265 | printf("PCI: warning, sys_outl failed: %d\n", s);
|
|---|
| 1266 | #else
|
|---|
| 1267 | outl(PCII_CONFADD, PCII_UNSEL);
|
|---|
| 1268 | #endif
|
|---|
| 1269 | }
|
|---|
| 1270 |
|
|---|
| 1271 | /*===========================================================================*
|
|---|
| 1272 | * pcii_wreg32 *
|
|---|
| 1273 | *===========================================================================*/
|
|---|
| 1274 | PRIVATE void pcii_wreg32(busind, devind, port, value)
|
|---|
| 1275 | int busind;
|
|---|
| 1276 | int devind;
|
|---|
| 1277 | int port;
|
|---|
| 1278 | u32_t value;
|
|---|
| 1279 | {
|
|---|
| 1280 | int s;
|
|---|
| 1281 | #if 0
|
|---|
| 1282 | printf("pcii_wreg32(%d, %d, 0x%X, 0x%X): %d.%d.%d\n",
|
|---|
| 1283 | busind, devind, port, value,
|
|---|
| 1284 | pcibus[busind].pb_bus, pcidev[devind].pd_dev,
|
|---|
| 1285 | pcidev[devind].pd_func);
|
|---|
| 1286 | #endif
|
|---|
| 1287 | PCII_WREG32_(pcibus[busind].pb_bus,
|
|---|
| 1288 | pcidev[devind].pd_dev, pcidev[devind].pd_func,
|
|---|
| 1289 | port, value);
|
|---|
| 1290 | #if USER_SPACE
|
|---|
| 1291 | if (OK != (s=sys_outl(PCII_CONFADD, PCII_UNSEL)))
|
|---|
| 1292 | printf("PCI: warning, sys_outl failed: %d\n");
|
|---|
| 1293 | #else
|
|---|
| 1294 | outl(PCII_CONFADD, PCII_UNSEL);
|
|---|
| 1295 | #endif
|
|---|
| 1296 | }
|
|---|
| 1297 |
|
|---|
| 1298 | /*===========================================================================*
|
|---|
| 1299 | * pcii_rsts *
|
|---|
| 1300 | *===========================================================================*/
|
|---|
| 1301 | PRIVATE u16_t pcii_rsts(busind)
|
|---|
| 1302 | int busind;
|
|---|
| 1303 | {
|
|---|
| 1304 | u16_t v;
|
|---|
| 1305 | int s;
|
|---|
| 1306 |
|
|---|
| 1307 | v= PCII_RREG16_(pcibus[busind].pb_bus, 0, 0, PCI_PCISTS);
|
|---|
| 1308 | #if USER_SPACE
|
|---|
| 1309 | if (OK != (s=sys_outl(PCII_CONFADD, PCII_UNSEL)))
|
|---|
| 1310 | printf("PCI: warning, sys_outl failed: %d\n", s);
|
|---|
| 1311 | #else
|
|---|
| 1312 | outl(PCII_CONFADD, PCII_UNSEL);
|
|---|
| 1313 | #endif
|
|---|
| 1314 | return v;
|
|---|
| 1315 | }
|
|---|
| 1316 |
|
|---|
| 1317 | /*===========================================================================*
|
|---|
| 1318 | * pcii_wsts *
|
|---|
| 1319 | *===========================================================================*/
|
|---|
| 1320 | PRIVATE void pcii_wsts(busind, value)
|
|---|
| 1321 | int busind;
|
|---|
| 1322 | u16_t value;
|
|---|
| 1323 | {
|
|---|
| 1324 | int s;
|
|---|
| 1325 | PCII_WREG16_(pcibus[busind].pb_bus, 0, 0, PCI_PCISTS, value);
|
|---|
| 1326 | #if USER_SPACE
|
|---|
| 1327 | if (OK != (s=sys_outl(PCII_CONFADD, PCII_UNSEL)))
|
|---|
| 1328 | printf("PCI: warning, sys_outl failed: %d\n", s);
|
|---|
| 1329 | #else
|
|---|
| 1330 | outl(PCII_CONFADD, PCII_UNSEL);
|
|---|
| 1331 | #endif
|
|---|
| 1332 | }
|
|---|
| 1333 |
|
|---|
| 1334 | /*
|
|---|
| 1335 | * $PchId: pci.c,v 1.7 2003/08/07 09:06:51 philip Exp $
|
|---|
| 1336 | */
|
|---|
