Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* $Id: t1pci.c,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $ |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 2 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * Module for AVM T1 PCI-card. |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 4 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | * Copyright 1999 by Carsten Paeth <calle@calle.de> |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 6 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | /* ------------------------------------------------------------- */ |
| 32 | static char *revision = "$Revision: 1.1.2.2 $"; |
| 33 | /* ------------------------------------------------------------- */ |
| 34 | |
| 35 | static 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 | |
| 40 | MODULE_DEVICE_TABLE(pci, t1pci_pci_tbl); |
| 41 | MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM T1 PCI card"); |
| 42 | MODULE_AUTHOR("Carsten Paeth"); |
| 43 | MODULE_LICENSE("GPL"); |
| 44 | |
| 45 | /* ------------------------------------------------------------- */ |
| 46 | |
| 47 | static char *t1pci_procinfo(struct capi_ctr *ctrl); |
| 48 | |
| 49 | static 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 | |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 62 | card->dma = avmcard_dma_alloc("t1pci", pdev, 2048 + 128, 2048 + 128); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Thomas Gleixner | 9ba02be | 2006-07-01 19:29:36 -0700 | [diff] [blame] | 106 | retval = request_irq(card->irq, b1dma_interrupt, IRQF_SHARED, card->name, card); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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; |
Alexey Dobriyan | 9a58a80 | 2010-01-14 03:10:54 -0800 | [diff] [blame] | 122 | cinfo->capi_ctrl.proc_fops = &b1dmactl_proc_fops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 139 | err_free_irq: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 140 | free_irq(card->irq, card); |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 141 | err_unmap: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | iounmap(card->mbase); |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 143 | err_release_region: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 144 | release_region(card->port, AVMB1_PORTLEN); |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 145 | err_free_dma: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | avmcard_dma_free(card->dma); |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 147 | err_free: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | b1_free_card(card); |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 149 | err: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 150 | return retval; |
| 151 | } |
| 152 | |
| 153 | /* ------------------------------------------------------------- */ |
| 154 | |
| 155 | static void t1pci_remove(struct pci_dev *pdev) |
| 156 | { |
| 157 | avmcard *card = pci_get_drvdata(pdev); |
| 158 | avmctrl_info *cinfo = card->ctrlinfo; |
| 159 | |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 160 | b1dma_reset(card); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 172 | static 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 | |
Greg Kroah-Hartman | ed5a84c | 2012-12-21 13:13:05 -0800 | [diff] [blame] | 190 | static int t1pci_probe(struct pci_dev *dev, const struct pci_device_id *ent) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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); |
Kulikov Vasiliy | a5a4405 | 2010-08-09 09:50:47 +0000 | [diff] [blame] | 212 | pci_disable_device(dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 213 | return -ENODEV; |
| 214 | } |
| 215 | return 0; |
| 216 | } |
| 217 | |
| 218 | static struct pci_driver t1pci_pci_driver = { |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 219 | .name = "t1pci", |
| 220 | .id_table = t1pci_pci_tbl, |
| 221 | .probe = t1pci_probe, |
| 222 | .remove = t1pci_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 223 | }; |
| 224 | |
| 225 | static struct capi_driver capi_driver_t1pci = { |
| 226 | .name = "t1pci", |
| 227 | .revision = "1.0", |
| 228 | }; |
| 229 | |
| 230 | static int __init t1pci_init(void) |
| 231 | { |
| 232 | char *p; |
| 233 | char rev[32]; |
| 234 | int err; |
| 235 | |
Harvey Harrison | 8e44b29 | 2008-04-28 02:14:38 -0700 | [diff] [blame] | 236 | if ((p = strchr(revision, ':')) != NULL && p[1]) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 237 | strlcpy(rev, p + 2, 32); |
Harvey Harrison | 8e44b29 | 2008-04-28 02:14:38 -0700 | [diff] [blame] | 238 | if ((p = strchr(rev, '$')) != NULL && p > rev) |
Joe Perches | 475be4d | 2012-02-19 19:52:38 -0800 | [diff] [blame] | 239 | *(p - 1) = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
| 252 | static void __exit t1pci_exit(void) |
| 253 | { |
| 254 | unregister_capi_driver(&capi_driver_t1pci); |
| 255 | pci_unregister_driver(&t1pci_pci_driver); |
| 256 | } |
| 257 | |
| 258 | module_init(t1pci_init); |
| 259 | module_exit(t1pci_exit); |