1/* $Id: b1pcmcia.c,v 1.1.1.1 2008/10/15 03:26:33 james26_jang Exp $ 2 * 3 * Module for AVM B1/M1/M2 PCMCIA-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/init.h> 20#include <asm/io.h> 21#include <linux/capi.h> 22#include <linux/b1pcmcia.h> 23#include "capicmd.h" 24#include "capiutil.h" 25#include "capilli.h" 26#include "avmcard.h" 27 28static char *revision = "$Revision: 1.1.1.1 $"; 29 30/* ------------------------------------------------------------- */ 31 32MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM PCMCIA cards"); 33MODULE_AUTHOR("Carsten Paeth"); 34MODULE_LICENSE("GPL"); 35 36/* ------------------------------------------------------------- */ 37 38static struct capi_driver_interface *di; 39 40/* ------------------------------------------------------------- */ 41 42static void b1pcmcia_interrupt(int interrupt, void *devptr, struct pt_regs *regs) 43{ 44 avmcard *card; 45 46 card = (avmcard *) devptr; 47 48 if (!card) { 49 printk(KERN_WARNING "b1pcmcia: interrupt: wrong device\n"); 50 return; 51 } 52 if (card->interrupt) { 53 printk(KERN_ERR "%s: reentering interrupt hander.\n", 54 card->name); 55 return; 56 } 57 58 card->interrupt = 1; 59 60 b1_handle_interrupt(card); 61 62 card->interrupt = 0; 63} 64/* ------------------------------------------------------------- */ 65 66static void b1pcmcia_remove_ctr(struct capi_ctr *ctrl) 67{ 68 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); 69 avmcard *card = cinfo->card; 70 unsigned int port = card->port; 71 72 b1_reset(port); 73 b1_reset(port); 74 75 di->detach_ctr(ctrl); 76 free_irq(card->irq, card); 77 /* io addrsses managent by CardServices 78 * release_region(card->port, AVMB1_PORTLEN); 79 */ 80 kfree(card); 81 82 MOD_DEC_USE_COUNT; 83} 84 85/* ------------------------------------------------------------- */ 86 87static int b1pcmcia_add_card(struct capi_driver *driver, 88 unsigned int port, 89 unsigned irq, 90 enum avmcardtype cardtype) 91{ 92 avmctrl_info *cinfo; 93 avmcard *card; 94 char *cardname; 95 int retval; 96 97 MOD_INC_USE_COUNT; 98 99 card = (avmcard *) kmalloc(sizeof(avmcard), GFP_ATOMIC); 100 101 if (!card) { 102 printk(KERN_WARNING "%s: no memory.\n", driver->name); 103 MOD_DEC_USE_COUNT; 104 return -ENOMEM; 105 } 106 memset(card, 0, sizeof(avmcard)); 107 cinfo = (avmctrl_info *) kmalloc(sizeof(avmctrl_info), GFP_ATOMIC); 108 if (!cinfo) { 109 printk(KERN_WARNING "%s: no memory.\n", driver->name); 110 kfree(card); 111 MOD_DEC_USE_COUNT; 112 return -ENOMEM; 113 } 114 memset(cinfo, 0, sizeof(avmctrl_info)); 115 card->ctrlinfo = cinfo; 116 cinfo->card = card; 117 switch (cardtype) { 118 case avm_m1: sprintf(card->name, "m1-%x", port); break; 119 case avm_m2: sprintf(card->name, "m2-%x", port); break; 120 default: sprintf(card->name, "b1pcmcia-%x", port); break; 121 } 122 card->port = port; 123 card->irq = irq; 124 card->cardtype = cardtype; 125 126 b1_reset(card->port); 127 if ((retval = b1_detect(card->port, card->cardtype)) != 0) { 128 printk(KERN_NOTICE "%s: NO card at 0x%x (%d)\n", 129 driver->name, card->port, retval); 130 kfree(card->ctrlinfo); 131 kfree(card); 132 MOD_DEC_USE_COUNT; 133 return -EIO; 134 } 135 b1_reset(card->port); 136 b1_getrevision(card); 137 138 retval = request_irq(card->irq, b1pcmcia_interrupt, 0, card->name, card); 139 if (retval) { 140 printk(KERN_ERR "%s: unable to get IRQ %d.\n", 141 driver->name, card->irq); 142 kfree(card->ctrlinfo); 143 kfree(card); 144 MOD_DEC_USE_COUNT; 145 return -EBUSY; 146 } 147 148 cinfo->capi_ctrl = di->attach_ctr(driver, card->name, cinfo); 149 if (!cinfo->capi_ctrl) { 150 printk(KERN_ERR "%s: attach controller failed.\n", 151 driver->name); 152 free_irq(card->irq, card); 153 kfree(card->ctrlinfo); 154 kfree(card); 155 MOD_DEC_USE_COUNT; 156 return -EBUSY; 157 } 158 switch (cardtype) { 159 case avm_m1: cardname = "M1"; break; 160 case avm_m2: cardname = "M2"; break; 161 default : cardname = "B1 PCMCIA"; break; 162 } 163 164 printk(KERN_INFO 165 "%s: AVM %s at i/o %#x, irq %d, revision %d\n", 166 driver->name, cardname, card->port, card->irq, card->revision); 167 168 return cinfo->capi_ctrl->cnr; 169} 170 171/* ------------------------------------------------------------- */ 172 173static char *b1pcmcia_procinfo(struct capi_ctr *ctrl) 174{ 175 avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); 176 177 if (!cinfo) 178 return ""; 179 sprintf(cinfo->infobuf, "%s %s 0x%x %d r%d", 180 cinfo->cardname[0] ? cinfo->cardname : "-", 181 cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-", 182 cinfo->card ? cinfo->card->port : 0x0, 183 cinfo->card ? cinfo->card->irq : 0, 184 cinfo->card ? cinfo->card->revision : 0 185 ); 186 return cinfo->infobuf; 187} 188 189/* ------------------------------------------------------------- */ 190 191static struct capi_driver b1pcmcia_driver = { 192 name: "b1pcmcia", 193 revision: "0.0", 194 load_firmware: b1_load_firmware, 195 reset_ctr: b1_reset_ctr, 196 remove_ctr: b1pcmcia_remove_ctr, 197 register_appl: b1_register_appl, 198 release_appl: b1_release_appl, 199 send_message: b1_send_message, 200 201 procinfo: b1pcmcia_procinfo, 202 ctr_read_proc: b1ctl_read_proc, 203 driver_read_proc: 0, /* use standard driver_read_proc */ 204 205 add_card: 0, 206}; 207 208/* ------------------------------------------------------------- */ 209 210int b1pcmcia_addcard_b1(unsigned int port, unsigned irq) 211{ 212 return b1pcmcia_add_card(&b1pcmcia_driver, port, irq, avm_b1pcmcia); 213} 214 215int b1pcmcia_addcard_m1(unsigned int port, unsigned irq) 216{ 217 return b1pcmcia_add_card(&b1pcmcia_driver, port, irq, avm_m1); 218} 219 220int b1pcmcia_addcard_m2(unsigned int port, unsigned irq) 221{ 222 return b1pcmcia_add_card(&b1pcmcia_driver, port, irq, avm_m2); 223} 224 225int b1pcmcia_delcard(unsigned int port, unsigned irq) 226{ 227 struct capi_ctr *ctrl; 228 avmcard *card; 229 230 for (ctrl = b1pcmcia_driver.controller; ctrl; ctrl = ctrl->next) { 231 card = ((avmctrl_info *)(ctrl->driverdata))->card; 232 if (card->port == port && card->irq == irq) { 233 b1pcmcia_remove_ctr(ctrl); 234 return 0; 235 } 236 } 237 return -ESRCH; 238} 239 240EXPORT_SYMBOL(b1pcmcia_addcard_b1); 241EXPORT_SYMBOL(b1pcmcia_addcard_m1); 242EXPORT_SYMBOL(b1pcmcia_addcard_m2); 243EXPORT_SYMBOL(b1pcmcia_delcard); 244 245/* ------------------------------------------------------------- */ 246 247static int __init b1pcmcia_init(void) 248{ 249 struct capi_driver *driver = &b1pcmcia_driver; 250 char *p; 251 int retval = 0; 252 253 MOD_INC_USE_COUNT; 254 255 if ((p = strchr(revision, ':')) != 0 && p[1]) { 256 strncpy(driver->revision, p + 2, sizeof(driver->revision)); 257 driver->revision[sizeof(driver->revision)-1] = 0; 258 if ((p = strchr(driver->revision, '$')) != 0 && p > driver->revision) 259 *(p-1) = 0; 260 } 261 262 printk(KERN_INFO "%s: revision %s\n", driver->name, driver->revision); 263 264 di = attach_capi_driver(driver); 265 266 if (!di) { 267 printk(KERN_ERR "%s: failed to attach capi_driver\n", 268 driver->name); 269 retval = -EIO; 270 } 271 MOD_DEC_USE_COUNT; 272 return retval; 273} 274 275static void __exit b1pcmcia_exit(void) 276{ 277 detach_capi_driver(&b1pcmcia_driver); 278} 279 280module_init(b1pcmcia_init); 281module_exit(b1pcmcia_exit); 282