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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 __devinit t1pci_probe(struct pci_dev *dev,
191 const struct pci_device_id *ent)
192{
193 struct capicardparams param;
194 int retval;
195
196 if (pci_enable_device(dev) < 0) {
197 printk(KERN_ERR "t1pci: failed to enable AVM-T1-PCI\n");
198 return -ENODEV;
199 }
200 pci_set_master(dev);
201
202 param.port = pci_resource_start(dev, 1);
203 param.irq = dev->irq;
204 param.membase = pci_resource_start(dev, 0);
205
206 printk(KERN_INFO "t1pci: PCI BIOS reports AVM-T1-PCI at i/o %#x, irq %d, mem %#x\n",
207 param.port, param.irq, param.membase);
208
209 retval = t1pci_add_card(¶m, dev);
210 if (retval != 0) {
211 printk(KERN_ERR "t1pci: no AVM-T1-PCI at i/o %#x, irq %d detected, mem %#x\n",
212 param.port, param.irq, param.membase);
213 pci_disable_device(dev);
214 return -ENODEV;
215 }
216 return 0;
217}
218
219static struct pci_driver t1pci_pci_driver = {
220 .name = "t1pci",
221 .id_table = t1pci_pci_tbl,
222 .probe = t1pci_probe,
223 .remove = t1pci_remove,
224};
225
226static struct capi_driver capi_driver_t1pci = {
227 .name = "t1pci",
228 .revision = "1.0",
229};
230
231static int __init t1pci_init(void)
232{
233 char *p;
234 char rev[32];
235 int err;
236
237 if ((p = strchr(revision, ':')) != NULL && p[1]) {
238 strlcpy(rev, p + 2, 32);
239 if ((p = strchr(rev, '$')) != NULL && p > rev)
240 *(p - 1) = 0;
241 } else
242 strcpy(rev, "1.0");
243
244 err = pci_register_driver(&t1pci_pci_driver);
245 if (!err) {
246 strlcpy(capi_driver_t1pci.revision, rev, 32);
247 register_capi_driver(&capi_driver_t1pci);
248 printk(KERN_INFO "t1pci: revision %s\n", rev);
249 }
250 return err;
251}
252
253static void __exit t1pci_exit(void)
254{
255 unregister_capi_driver(&capi_driver_t1pci);
256 pci_unregister_driver(&t1pci_pci_driver);
257}
258
259module_init(t1pci_init);
260module_exit(t1pci_exit);