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| Source at commit 1158 created 13 years 16 days ago. By azimutz, Match nvidia.c with the one on my branch (Chazi) adding dev id's from issue 99 and Asus G74SX (0DF4, 1251). | |
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| 1 | /*␊ |
| 2 | * Copyright (c) 2009 Evan Lojewski. All rights reserved.␊ |
| 3 | *␊ |
| 4 | */␊ |
| 5 | ␊ |
| 6 | #include "libsaio.h"␊ |
| 7 | #include "modules.h"␊ |
| 8 | #include "boot.h"␊ |
| 9 | #include "bootstruct.h"␊ |
| 10 | #include "pci_root.h"␊ |
| 11 | #include "acpi_patcher.h"␊ |
| 12 | ␊ |
| 13 | int ACPIPatcher_getPciRootUID(void);␊ |
| 14 | unsigned int findpciroot(unsigned char * dsdt,int len);␊ |
| 15 | static unsigned int findrootuid(unsigned char * dsdt, int len);␊ |
| 16 | ␊ |
| 17 | void ACPIPatcher_setupEfiConfigurationTable_hook(void* binary, void* arg2, void* arg3, void* arg4)␊ |
| 18 | {␊ |
| 19 | ␉// Setup ACPI with DSDT overrides (mackerintel's patch)␊ |
| 20 | ␉setupAcpi();␊ |
| 21 | }␊ |
| 22 | ␊ |
| 23 | void ACPIPatcher_start()␊ |
| 24 | {␊ |
| 25 | ␉replace_function("_getPciRootUID", &ACPIPatcher_getPciRootUID);␊ |
| 26 | ␉register_hook_callback("setupEfiConfigurationTable", &ACPIPatcher_setupEfiConfigurationTable_hook);␊ |
| 27 | }␊ |
| 28 | ␊ |
| 29 | int ACPIPatcher_rootuid = 10; //value means function wasnt ran yet␊ |
| 30 | ␊ |
| 31 | int ACPIPatcher_getPciRootUID(void)␊ |
| 32 | {␊ |
| 33 | ␉void *new_dsdt;␊ |
| 34 | ␉const char *val;␊ |
| 35 | ␉int len,fsize;␊ |
| 36 | ␉const char * dsdt_filename=NULL;␊ |
| 37 | ␉extern int search_and_get_acpi_fd(const char *, const char **);␊ |
| 38 | ␉␊ |
| 39 | ␉if (ACPIPatcher_rootuid < 10) return ACPIPatcher_rootuid;␊ |
| 40 | ␉ACPIPatcher_rootuid = 0;␉/* default uid = 0 */␊ |
| 41 | ␉␊ |
| 42 | ␉if (getValueForKey(kPCIRootUID, &val, &len, &bootInfo->bootConfig)) {␊ |
| 43 | ␉␉if (isdigit(val[0])) ACPIPatcher_rootuid = val[0] - '0';␊ |
| 44 | ␉␉goto out;␊ |
| 45 | ␉}␊ |
| 46 | ␉/* Chameleon compatibility */␊ |
| 47 | ␉else if (getValueForKey("PciRoot", &val, &len, &bootInfo->bootConfig)) {␊ |
| 48 | ␉␉if (isdigit(val[0])) ACPIPatcher_rootuid = val[0] - '0';␊ |
| 49 | ␉␉goto out;␊ |
| 50 | ␉}␊ |
| 51 | ␉/* PCEFI compatibility */␊ |
| 52 | ␉else if (getValueForKey("-pci0", &val, &len, &bootInfo->bootConfig)) {␊ |
| 53 | ␉␉ACPIPatcher_rootuid = 0;␊ |
| 54 | ␉␉goto out;␊ |
| 55 | ␉}␊ |
| 56 | ␉else if (getValueForKey("-pci1", &val, &len, &bootInfo->bootConfig)) {␊ |
| 57 | ␉␉ACPIPatcher_rootuid = 1;␊ |
| 58 | ␉␉goto out;␊ |
| 59 | ␉}␊ |
| 60 | ␉␊ |
| 61 | ␉int fd = search_and_get_acpi_fd("DSDT.aml", &dsdt_filename);␊ |
| 62 | ␉␊ |
| 63 | ␉// Check booting partition␊ |
| 64 | ␉if (fd<0)␊ |
| 65 | ␉{␉ ␊ |
| 66 | ␉␉verbose("No DSDT found, using 0 as uid value.\n");␊ |
| 67 | ␉␉ACPIPatcher_rootuid = 0;␊ |
| 68 | ␉␉goto out;␊ |
| 69 | ␉}␊ |
| 70 | ␉␊ |
| 71 | ␉fsize = file_size(fd);␊ |
| 72 | ␊ |
| 73 | ␉if ((new_dsdt = malloc(fsize)) == NULL) {␊ |
| 74 | ␉␉verbose("[ERROR] alloc DSDT memory failed\n");␊ |
| 75 | ␉␉close (fd);␊ |
| 76 | ␉␉goto out;␊ |
| 77 | ␉}␊ |
| 78 | ␉if (read (fd, new_dsdt, fsize) != fsize) {␊ |
| 79 | ␉␉verbose("[ERROR] read %s failed\n", dsdt_filename);␊ |
| 80 | ␉␉close (fd);␊ |
| 81 | ␉␉goto out;␊ |
| 82 | ␉}␊ |
| 83 | ␉close (fd);␊ |
| 84 | ␉␊ |
| 85 | ␉ACPIPatcher_rootuid = findpciroot(new_dsdt, fsize);␊ |
| 86 | ␉free(new_dsdt);␊ |
| 87 | ␉␊ |
| 88 | ␉// make sure it really works: ␊ |
| 89 | ␉if (ACPIPatcher_rootuid == 11) ACPIPatcher_rootuid=0; //usually when _UID isnt present, it means uid is zero␊ |
| 90 | ␉else if (ACPIPatcher_rootuid < 0 || ACPIPatcher_rootuid > 9) ␊ |
| 91 | ␉{␊ |
| 92 | ␉␉printf("PciRoot uid value wasnt found, using 0, if you want it to be 1, use -PciRootUID flag");␊ |
| 93 | ␉␉ACPIPatcher_rootuid = 0;␊ |
| 94 | ␉}␊ |
| 95 | out:␊ |
| 96 | ␉verbose("Using PCI-Root-UID value: %d\n", ACPIPatcher_rootuid);␊ |
| 97 | ␉return ACPIPatcher_rootuid;␊ |
| 98 | }␊ |
| 99 | ␊ |
| 100 | unsigned int findpciroot(unsigned char * dsdt,int len)␊ |
| 101 | {␊ |
| 102 | ␉int i;␊ |
| 103 | ␉␊ |
| 104 | ␉for (i=0; i<len-4; i++) {␊ |
| 105 | ␉␉if(dsdt[i] == 'P' && dsdt[i+1] == 'C' && dsdt[i+2] == 'I' && (dsdt[i+3] == 0x08 || dsdt [i+4] == 0x08)) {␊ |
| 106 | ␉␉␉return findrootuid(dsdt+i, len-i);␊ |
| 107 | ␉␉}␊ |
| 108 | ␉}␊ |
| 109 | ␉return 10;␊ |
| 110 | }␊ |
| 111 | ␊ |
| 112 | static unsigned int findrootuid(unsigned char * dsdt, int len)␊ |
| 113 | {␊ |
| 114 | ␉int i;␊ |
| 115 | ␉for (i=0; i<64 && i<len-5; i++) //not far than 64 symbols from pci root ␊ |
| 116 | ␉{␊ |
| 117 | ␉␉if(dsdt[i] == '_' && dsdt[i+1] == 'U' && dsdt[i+2] == 'I' && dsdt[i+3] == 'D' && dsdt[i+5] == 0x08)␊ |
| 118 | ␉␉{␊ |
| 119 | ␉␉␉return dsdt[i+4];␊ |
| 120 | ␉␉}␊ |
| 121 | ␉}␊ |
| 122 | ␉return 11;␊ |
| 123 | }␊ |
| 124 | |
