src/add-ons/kernel/drivers/network/rtl8169/driver.c

   1 /* Realtek RTL8169 Family Driver
   2  * Copyright (C) 2004 Marcus Overhagen <marcus@overhagen.de>. All rights reserved.
   3  *
   4  * Permission to use, copy, modify and distribute this software and its
   5  * documentation for any purpose and without fee is hereby granted, provided
   6  * that the above copyright notice appear in all copies, and that both the
   7  * copyright notice and this permission notice appear in supporting documentation.
   8  *
   9  * Marcus Overhagen makes no representations about the suitability of this software
  10  * for any purpose. It is provided "as is" without express or implied warranty.
  11  *
  12  * MARCUS OVERHAGEN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  13  * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL MARCUS
  14  * OVERHAGEN BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
  15  * DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  17  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  18  */
  19 #include <KernelExport.h>
  20 #include <Errors.h>
  21 #include <stdlib.h>
  22 #include <stdio.h>
  23 #include <string.h>
  24
  25 //#define DEBUG
  26
  27 #include "debug.h"
  28 #include "device.h"
  29 #include "driver.h"
  30 #include "setup.h"
  31 #include "timer.h"
  32
  33
  34 #define VENDOR_ID_REALTEK       0x10ec
  35
  36
  37 static const uint32 kSupportedDevices[] = {
  38         0x8167,
  39         0x8168,
  40         0x8169,
  41 };
  42
  43 int32 api_version = B_CUR_DRIVER_API_VERSION;
  44
  45 char* gDevNameList[MAX_CARDS + 1];
  46 pci_info *gDevList[MAX_CARDS];
  47 pci_module_info *gPci;
  48
  49 static device_hooks sDeviceHooks = {
  50         rtl8169_open,
  51         rtl8169_close,
  52         rtl8169_free,
  53         rtl8169_control,
  54         rtl8169_read,
  55         rtl8169_write,
  56 };
  57
  58
  59 static status_t
  60 get_next_supported_pci_info(int32 *_cookie, pci_info *info)
  61 {
  62         int32 index = *_cookie;
  63         uint32 i;
  64
  65         // find devices
  66
  67         for (; gPci->get_nth_pci_info(index, info) == B_OK; index++) {
  68                 // check vendor
  69                 if (info->vendor_id != VENDOR_ID_REALTEK)
  70                         continue;
  71
  72                 // check device
  73                 for (i = 0; i < sizeof(kSupportedDevices)
  74                                 / sizeof(kSupportedDevices[0]); i++) {
  75                         if (info->device_id == kSupportedDevices[i]) {
  76                                 *_cookie = index + 1;
  77                                 return B_OK;
  78                         }
  79                 }
  80         }
  81
  82         return B_ENTRY_NOT_FOUND;
  83 }
  84
  85
  86 //      #pragma mark -
  87
  88
  89 status_t
  90 init_hardware(void)
  91 {
  92         uint32 cookie = 0;
  93         status_t result;
  94         pci_info info;
  95
  96         TRACE("init_hardware()\n");
  97
  98         if (get_module(B_PCI_MODULE_NAME, (module_info **)&gPci) < B_OK)
  99                 return B_ERROR;
 100
 101         result = get_next_supported_pci_info(&cookie, &info);
 102         put_module(B_PCI_MODULE_NAME);
 103
 104         return result;
 105 }
 106
 107
 108 status_t
 109 init_driver(void)
 110 {
 111         struct pci_info *item;
 112         uint32 index = 0;
 113         int cards = 0;
 114
 115 #ifdef DEBUG
 116         set_dprintf_enabled(true);
 117         load_driver_symbols("rtl8169");
 118 #endif
 119
 120         dprintf(INFO1"\n");
 121         dprintf(INFO2"\n");
 122
 123         item = (pci_info *)malloc(sizeof(pci_info));
 124         if (!item)
 125                 return B_NO_MEMORY;
 126
 127         if (get_module(B_PCI_MODULE_NAME, (module_info **)&gPci) < B_OK) {
 128                 free(item);
 129                 return B_ERROR;
 130         }
 131
 132         while (get_next_supported_pci_info(&index, item) == B_OK) {
 133                 char name[64];
 134                 sprintf(name, "net/rtl8169/%d", cards);
 135                 gDevList[cards] = item;
 136                 gDevNameList[cards] = strdup(name);
 137                 gDevNameList[cards + 1] = NULL;
 138                 cards++;
 139
 140                 item = (pci_info *)malloc(sizeof(pci_info));
 141                 if (!item)
 142                         goto err_outofmem;
 143
 144                 if (cards == MAX_CARDS)
 145                         break;
 146         }
 147
 148         TRACE("found %d cards\n", cards);
 149
 150         free(item);
 151
 152         if (!cards)
 153                 goto err_cards;
 154
 155         if (initialize_timer() != B_OK) {
 156                 ERROR("timer init failed\n");
 157                 goto err_timer;
 158         }
 159
 160         return B_OK;
 161
 162 err_timer:
 163 err_cards:
 164 err_outofmem:
 165         for (index = 0; index < cards; index++) {
 166                 free(gDevList[index]);
 167                 free(gDevNameList[index]);
 168         }
 169         put_module(B_PCI_MODULE_NAME);
 170         return B_ERROR;
 171 }
 172
 173
 174 void
 175 uninit_driver(void)
 176 {
 177         int32 i;
 178
 179         TRACE("uninit_driver()\n");
 180
 181         terminate_timer();
 182
 183         for (i = 0; gDevNameList[i] != NULL; i++) {
 184                 free(gDevList[i]);
 185                 free(gDevNameList[i]);
 186         }
 187
 188         put_module(B_PCI_MODULE_NAME);
 189 }
 190
 191
 192 const char**
 193 publish_devices()
 194 {
 195         return (const char**)gDevNameList;
 196 }
 197
 198
 199 device_hooks*
 200 find_device(const char* name)
 201 {
 202         return &sDeviceHooks;
 203 }