1/* $Id: t1pci.c,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $ 2 * 3 * Module for AVM T1 PCI-card. 4 * 5 * Copyright 1999 by Carsten Paeth <calle@calle.de> 6 * 7 * This software may be used and distributed according to the terms 8 * of the GNU General Public License, incorporated herein by reference. 9 * 10 */ 11 12#include <linux/module.h> 13#include <linux/kernel.h> 14#include <linux/skbuff.h> 15#include <linux/delay.h> 16#include <linux/mm.h> 17#include <linux/interrupt.h> 18#include <linux/ioport.h> 19#include <linux/pci.h> 20#include <linux/capi.h> 21#include <linux/init.h> 22#include <asm/io.h> 23#include <linux/isdn/capicmd.h> 24#include <linux/isdn/capiutil.h> 25#include <linux/isdn/capilli.h> 26#include "avmcard.h" 27 28#undef CONFIG_T1PCI_DEBUG 29#undef CONFIG_T1PCI_POLLDEBUG 30 31/* ------------------------------------------------------------- */ 32static char *revision = "$Revision: 1.1.2.2 $"; 33/* ------------------------------------------------------------- */ 34 35static struct pci_device_id t1pci_pci_tbl[] = { 36 { PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_T1, PCI_ANY_ID, PCI_ANY_ID }, 37 { } /* Terminating entry */ 38}; 39 40MODULE_DEVICE_TABLE(pci, t1pci_pci_tbl); 41MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM T1 PCI card"); 42MODULE_AUTHOR("Carsten Paeth"); 43MODULE_LICENSE("GPL"); 44 45/* ------------------------------------------------------------- */ 46 47static char *t1pci_procinfo(struct capi_ctr *ctrl); 48 49static int t1pci_add_card(struct capicardparams *p, struct pci_dev *pdev) 50{ 51 avmcard *card; 52 avmctrl_info *cinfo; 53 int retval; 54 55 card = b1_alloc_card(1); 56 if (!card) { 57 printk(KERN_WARNING "t1pci: no memory.\n"); 58 retval = -ENOMEM; 59 goto err; 60 } 61 62 card->dma = avmcard_dma_alloc("t1pci", pdev, 2048 + 128, 2048 + 128); 63 if (!card->dma) { 64 printk(KERN_WARNING "t1pci: no memory.\n"); 65 retval = -ENOMEM; 66 goto err_free; 67 } 68 69 cinfo = card->ctrlinfo; 70 sprintf(card->name, "t1pci-%x", p->port); 71 card->port = p->port; 72 card->irq = p->irq; 73 card->membase = p->membase; 74 card->cardtype = avm_t1pci; 75 76 if (!request_region(card->port, AVMB1_PORTLEN, card->name)) { 77 printk(KERN_WARNING "t1pci: ports 0x%03x-0x%03x in use.\n", 78 card->port, card->port + AVMB1_PORTLEN); 79 retval = -EBUSY; 80 goto err_free_dma; 81 } 82 83 card->mbase = ioremap(card->membase, 64); 84 if (!card->mbase) { 85 printk(KERN_NOTICE "t1pci: can't remap memory at 0x%lx\n", 86 card->membase); 87 retval = -EIO; 88 goto err_release_region; 89 } 90 91 b1dma_reset(card); 92 93 retval = t1pci_detect(card); 94 if (retval != 0) { 95 if (retval < 6) 96 printk(KERN_NOTICE "t1pci: NO card at 0x%x (%d)\n", 97 card->port, retval); 98 else 99 printk(KERN_NOTICE "t1pci: card at 0x%x, but cable not connected or T1 has no power (%d)\n", 100 card->port, retval); 101 retval = -EIO; 102 goto err_unmap; 103 } 104 b1dma_reset(card); 105 106 retval = request_irq(card->irq, b1dma_interrupt, IRQF_SHARED, card->name, card); 107 if (retval) { 108 printk(KERN_ERR "t1pci: unable to get IRQ %d.\n", card->irq); 109 retval = -EBUSY; 110 goto err_unmap; 111 } 112 113 cinfo->capi_ctrl.owner = THIS_MODULE; 114 cinfo->capi_ctrl.driver_name = "t1pci"; 115 cinfo->capi_ctrl.driverdata = cinfo; 116 cinfo->capi_ctrl.register_appl = b1dma_register_appl; 117 cinfo->capi_ctrl.release_appl = b1dma_release_appl; 118 cinfo->capi_ctrl.send_message = b1dma_send_message; 119 cinfo->capi_ctrl.load_firmware = b1dma_load_firmware; 120 cinfo->capi_ctrl.reset_ctr = b1dma_reset_ctr; 121 cinfo->capi_ctrl.procinfo = t1pci_procinfo; 122 cinfo->capi_ctrl.proc_fops = &b1dmactl_proc_fops; 123 strcpy(cinfo->capi_ctrl.name, card->name); 124 125 retval = attach_capi_ctr(&cinfo->capi_ctrl); 126 if (retval) { 127 printk(KERN_ERR "t1pci: attach controller failed.\n"); 128 retval = -EBUSY; 129 goto err_free_irq; 130 } 131 card->cardnr = cinfo->capi_ctrl.cnr; 132 133 printk(KERN_INFO "t1pci: AVM T1 PCI at i/o %#x, irq %d, mem %#lx\n", 134 card->port, card->irq, card->membase); 135 136 pci_set_drvdata(pdev, card); 137 return 0; 138 139err_free_irq: 140 free_irq(card->irq, card); 141err_unmap: 142 iounmap(card->mbase); 143err_release_region: 144 release_region(card->port, AVMB1_PORTLEN); 145err_free_dma: 146 avmcard_dma_free(card->dma); 147err_free: 148 b1_free_card(card); 149err: 150 return retval; 151} 152 153/* ------------------------------------------------------------- */ 154 155static void t1pci_remove(struct pci_dev *pdev) 156{ 157 avmcard *card = pci_get_drvdata(pdev); 158 avmctrl_info *cinfo = card->ctrlinfo; 159 160 b1dma_reset(card); 161 162 detach_capi_ctr(&cinfo->capi_ctrl); 163 free_irq(card->irq, card); 164 iounmap(card->mbase); 165 release_region(card->port, AVMB1_PORTLEN); 166 avmcard_dma_free(card->dma); 167 b1_free_card(card); 168} 169 170/* ------------------------------------------------------------- */ 171 172static char *t1pci_procinfo(struct capi_ctr *ctrl) 173{ 174 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); 175 176 if (!cinfo) 177 return ""; 178 sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx", 179 cinfo->cardname[0] ? cinfo->cardname : "-", 180 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-", 181 cinfo->card ? cinfo->card->port : 0x0, 182 cinfo->card ? cinfo->card->irq : 0, 183 cinfo->card ? cinfo->card->membase : 0 184 ); 185 return cinfo->infobuf; 186} 187 188/* ------------------------------------------------------------- */ 189 190static int t1pci_probe(struct pci_dev *dev, const struct pci_device_id *ent) 191{ 192 struct capicardparams param; 193 int retval; 194 195 if (pci_enable_device(dev) < 0) { 196 printk(KERN_ERR "t1pci: failed to enable AVM-T1-PCI\n"); 197 return -ENODEV; 198 } 199 pci_set_master(dev); 200 201 param.port = pci_resource_start(dev, 1); 202 param.irq = dev->irq; 203 param.membase = pci_resource_start(dev, 0); 204 205 printk(KERN_INFO "t1pci: PCI BIOS reports AVM-T1-PCI at i/o %#x, irq %d, mem %#x\n", 206 param.port, param.irq, param.membase); 207 208 retval = t1pci_add_card(¶m, dev); 209 if (retval != 0) { 210 printk(KERN_ERR "t1pci: no AVM-T1-PCI at i/o %#x, irq %d detected, mem %#x\n", 211 param.port, param.irq, param.membase); 212 pci_disable_device(dev); 213 return -ENODEV; 214 } 215 return 0; 216} 217 218static struct pci_driver t1pci_pci_driver = { 219 .name = "t1pci", 220 .id_table = t1pci_pci_tbl, 221 .probe = t1pci_probe, 222 .remove = t1pci_remove, 223}; 224 225static struct capi_driver capi_driver_t1pci = { 226 .name = "t1pci", 227 .revision = "1.0", 228}; 229 230static int __init t1pci_init(void) 231{ 232 char *p; 233 char rev[32]; 234 int err; 235 236 if ((p = strchr(revision, ':')) != NULL && p[1]) { 237 strlcpy(rev, p + 2, 32); 238 if ((p = strchr(rev, '$')) != NULL && p > rev) 239 *(p - 1) = 0; 240 } else 241 strcpy(rev, "1.0"); 242 243 err = pci_register_driver(&t1pci_pci_driver); 244 if (!err) { 245 strlcpy(capi_driver_t1pci.revision, rev, 32); 246 register_capi_driver(&capi_driver_t1pci); 247 printk(KERN_INFO "t1pci: revision %s\n", rev); 248 } 249 return err; 250} 251 252static void __exit t1pci_exit(void) 253{ 254 unregister_capi_driver(&capi_driver_t1pci); 255 pci_unregister_driver(&t1pci_pci_driver); 256} 257 258module_init(t1pci_init); 259module_exit(t1pci_exit); 260