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| Rev | Author | Line No. | Line |
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| 587 | giacomo | 1 | /* |
| 2 | * Project: S.Ha.R.K. |
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| 3 | * |
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| 4 | * Coordinators: |
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| 5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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| 6 | * Paolo Gai <pj@gandalf.sssup.it> |
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| 7 | * |
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| 8 | * Authors : |
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| 9 | * Mauro Marinoni <mauro.marinoni@unipv.it> |
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| 10 | * (see the web pages for full authors list) |
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| 11 | * |
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| 12 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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| 13 | * |
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| 14 | * http://www.sssup.it |
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| 15 | * http://retis.sssup.it |
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| 16 | * http://shark.sssup.it |
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| 17 | */ |
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| 18 | |||
| 19 | /* |
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| 20 | * This program is free software; you can redistribute it and/or modify |
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| 21 | * it under the terms of the GNU General Public License as published by |
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| 22 | * the Free Software Foundation; either version 2 of the License, or |
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| 23 | * (at your option) any later version. |
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| 24 | * |
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| 25 | * This program is distributed in the hope that it will be useful, |
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| 26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 28 | * GNU General Public License for more details. |
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| 29 | * |
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| 30 | * You should have received a copy of the GNU General Public License |
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| 31 | * along with this program; if not, write to the Free Software |
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| 32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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| 33 | */ |
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| 34 | |||
| 35 | #include <linuxcomp.h> |
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| 36 | #include <linux/pci.h> |
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| 37 | |||
| 38 | //#define __DEBUG_20TO26__ |
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| 39 | |||
| 40 | void linuxpci_init(void) |
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| 41 | { |
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| 42 | // PCI26_init MUST be called first ( TODO - Check ) |
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| 43 | } |
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| 44 | |||
| 45 | int pci20to26_find_class(unsigned int class_code, int index, BYTE *bus, BYTE *dev) |
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| 46 | { |
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| 47 | struct pci_dev *ptmp = NULL; |
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| 48 | int curr = 0; |
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| 49 | |||
| 50 | ptmp = pci_find_class(class_code, ptmp); |
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| 51 | while (ptmp) { |
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| 52 | #ifdef __DEBUG_20TO26__ |
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| 53 | printk(KERN_DEBUG "pci20to26_find_class %x: found at bus %d, dev %d.\n", ptmp->class, ptmp->bus->number, ptmp->devfn); |
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| 54 | #endif |
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| 55 | |||
| 56 | if (curr == index) { |
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| 57 | *bus = ptmp->bus->number; |
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| 58 | *dev = ptmp->devfn; |
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| 59 | |||
| 60 | #ifdef __DEBUG_20TO26__ |
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| 61 | printk(KERN_DEBUG "pci20to26_find_class: found at bus %d, dev %d\n", *bus, *dev); |
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| 62 | #endif |
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| 63 | |||
| 64 | return PCIBIOS_SUCCESSFUL; |
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| 65 | } |
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| 66 | ++curr; |
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| 67 | ptmp = pci_find_class(class_code, ptmp); |
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| 68 | } |
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| 69 | |||
| 70 | return PCIBIOS_DEVICE_NOT_FOUND; |
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| 71 | } |
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| 72 | |||
| 73 | int pcibios_present(void) |
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| 74 | { |
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| 75 | return 1; // PCI26 initialized? ( TODO - Check ) |
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| 76 | } |
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| 77 | |||
| 78 | int pci20to26_read_config_byte(unsigned int bus, unsigned int dev, int where, u8 *val) |
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| 79 | { |
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| 80 | struct pci_dev tmp; |
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| 81 | struct pci_dev *ptmp = &tmp; |
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| 82 | |||
| 83 | ptmp = pci_find_slot(bus, dev); |
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| 84 | pci_read_config_byte(ptmp, where, val); |
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| 85 | |||
| 86 | #ifdef __DEBUG_20TO26__ |
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| 87 | printk(KERN_DEBUG "pci20to26_read_config_byte: (bus %d, dev %d) -> %d\n", bus, dev, *val); |
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| 88 | #endif |
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| 89 | |||
| 90 | return 1; |
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| 91 | } |
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| 92 | |||
| 93 | int pci20to26_read_config_word(unsigned int bus, unsigned int dev, int where, u16 *val) |
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| 94 | { |
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| 95 | struct pci_dev tmp; |
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| 96 | struct pci_dev *ptmp = &tmp; |
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| 97 | |||
| 98 | ptmp = pci_find_slot(bus, dev); |
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| 99 | pci_read_config_word(ptmp, where, val); |
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| 100 | |||
| 101 | #ifdef __DEBUG_20TO26__ |
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| 102 | printk(KERN_DEBUG "pci20to26_read_config_word: (bus %d, dev %d) -> %d\n", bus, dev, *val); |
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| 103 | #endif |
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| 104 | |||
| 105 | return 1; |
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| 106 | } |
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| 107 | |||
| 108 | int pci20to26_read_config_dword(unsigned int bus, unsigned int dev, int where, u32 *val) |
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| 109 | { |
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| 110 | struct pci_dev tmp; |
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| 111 | struct pci_dev *ptmp = &tmp; |
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| 112 | |||
| 113 | ptmp = pci_find_slot(bus, dev); |
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| 114 | pci_read_config_dword(ptmp, where, val); |
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| 115 | |||
| 116 | #ifdef __DEBUG_20TO26__ |
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| 117 | printk(KERN_DEBUG "pci20to26_read_config_dword: (bus %d, dev %d) -> %uld\n", bus, dev, *val); |
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| 118 | #endif |
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| 119 | |||
| 120 | return 1; |
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| 121 | } |
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| 122 | |||
| 123 | int pci20to26_write_config_byte(unsigned int bus, unsigned int dev, int where, u8 val) |
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| 124 | { |
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| 125 | struct pci_dev tmp; |
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| 126 | struct pci_dev *ptmp = &tmp; |
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| 127 | |||
| 128 | ptmp = pci_find_slot(bus, dev); |
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| 129 | pci_write_config_byte(ptmp, where, val); |
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| 130 | |||
| 131 | return 1; |
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| 132 | } |
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| 133 | |||
| 134 | int pci20to26_write_config_word(unsigned int bus, unsigned int dev, int where, u16 val) |
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| 135 | { |
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| 136 | struct pci_dev tmp; |
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| 137 | struct pci_dev *ptmp = &tmp; |
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| 138 | |||
| 139 | ptmp = pci_find_slot(bus, dev); |
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| 140 | pci_write_config_word(ptmp, where, val); |
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| 141 | |||
| 142 | return 1; |
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| 143 | } |
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| 144 | |||
| 145 | int pci20to26_write_config_dword(unsigned int bus, unsigned int dev, int where, u32 val) |
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| 146 | { |
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| 147 | struct pci_dev tmp; |
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| 148 | struct pci_dev *ptmp = &tmp; |
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| 149 | |||
| 150 | ptmp = pci_find_slot(bus, dev); |
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| 151 | pci_write_config_dword(ptmp, where, val); |
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| 152 | |||
| 153 | return 1; |
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| 154 | } |