180 lines
4.3 KiB
C
180 lines
4.3 KiB
C
/* $Id: avm_cs.c,v 1.4.6.3 2001/09/23 22:24:33 kai Exp $
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*
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* A PCMCIA client driver for AVM B1/M1/M2
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*
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* Copyright 1999 by Carsten Paeth <calle@calle.de>
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/ptrace.h>
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#include <linux/string.h>
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#include <linux/tty.h>
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#include <linux/serial.h>
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#include <linux/major.h>
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#include <asm/io.h>
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#include <asm/system.h>
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#include <pcmcia/cistpl.h>
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#include <pcmcia/ciscode.h>
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#include <pcmcia/ds.h>
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#include <pcmcia/cisreg.h>
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#include <linux/skbuff.h>
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#include <linux/capi.h>
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#include <linux/b1lli.h>
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#include <linux/b1pcmcia.h>
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/*====================================================================*/
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MODULE_DESCRIPTION("CAPI4Linux: PCMCIA client driver for AVM B1/M1/M2");
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MODULE_AUTHOR("Carsten Paeth");
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MODULE_LICENSE("GPL");
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/*====================================================================*/
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static int avmcs_config(struct pcmcia_device *link);
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static void avmcs_release(struct pcmcia_device *link);
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static void avmcs_detach(struct pcmcia_device *p_dev);
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static int avmcs_probe(struct pcmcia_device *p_dev)
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{
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/* General socket configuration */
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p_dev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
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p_dev->config_index = 1;
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p_dev->config_regs = PRESENT_OPTION;
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return avmcs_config(p_dev);
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} /* avmcs_attach */
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static void avmcs_detach(struct pcmcia_device *link)
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{
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avmcs_release(link);
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} /* avmcs_detach */
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static int avmcs_configcheck(struct pcmcia_device *p_dev, void *priv_data)
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{
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p_dev->resource[0]->end = 16;
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p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
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p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8;
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return pcmcia_request_io(p_dev);
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}
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static int avmcs_config(struct pcmcia_device *link)
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{
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int i = -1;
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char devname[128];
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int cardtype;
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int (*addcard)(unsigned int port, unsigned irq);
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devname[0] = 0;
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if (link->prod_id[1])
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strlcpy(devname, link->prod_id[1], sizeof(devname));
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/*
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* find IO port
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*/
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if (pcmcia_loop_config(link, avmcs_configcheck, NULL))
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return -ENODEV;
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do {
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if (!link->irq) {
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/* undo */
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pcmcia_disable_device(link);
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break;
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}
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/*
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* configure the PCMCIA socket
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*/
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i = pcmcia_enable_device(link);
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if (i != 0) {
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pcmcia_disable_device(link);
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break;
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}
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} while (0);
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if (devname[0]) {
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char *s = strrchr(devname, ' ');
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if (!s)
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s = devname;
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else s++;
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if (strcmp("M1", s) == 0) {
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cardtype = AVM_CARDTYPE_M1;
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} else if (strcmp("M2", s) == 0) {
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cardtype = AVM_CARDTYPE_M2;
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} else {
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cardtype = AVM_CARDTYPE_B1;
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}
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} else
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cardtype = AVM_CARDTYPE_B1;
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/* If any step failed, release any partially configured state */
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if (i != 0) {
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avmcs_release(link);
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return -ENODEV;
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}
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switch (cardtype) {
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case AVM_CARDTYPE_M1: addcard = b1pcmcia_addcard_m1; break;
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case AVM_CARDTYPE_M2: addcard = b1pcmcia_addcard_m2; break;
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default:
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case AVM_CARDTYPE_B1: addcard = b1pcmcia_addcard_b1; break;
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}
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if ((i = (*addcard)(link->resource[0]->start, link->irq)) < 0) {
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dev_err(&link->dev,
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"avm_cs: failed to add AVM-Controller at i/o %#x, irq %d\n",
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(unsigned int) link->resource[0]->start, link->irq);
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avmcs_release(link);
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return -ENODEV;
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}
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return 0;
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} /* avmcs_config */
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static void avmcs_release(struct pcmcia_device *link)
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{
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b1pcmcia_delcard(link->resource[0]->start, link->irq);
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pcmcia_disable_device(link);
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} /* avmcs_release */
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static const struct pcmcia_device_id avmcs_ids[] = {
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PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN-Controller B1", 0x95d42008, 0x845dc335),
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PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M1", 0x95d42008, 0x81e10430),
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PCMCIA_DEVICE_PROD_ID12("AVM", "Mobile ISDN-Controller M2", 0x95d42008, 0x18e8558a),
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PCMCIA_DEVICE_NULL
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};
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MODULE_DEVICE_TABLE(pcmcia, avmcs_ids);
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static struct pcmcia_driver avmcs_driver = {
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.owner = THIS_MODULE,
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.name = "avm_cs",
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.probe = avmcs_probe,
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.remove = avmcs_detach,
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.id_table = avmcs_ids,
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};
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static int __init avmcs_init(void)
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{
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return pcmcia_register_driver(&avmcs_driver);
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}
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static void __exit avmcs_exit(void)
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{
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pcmcia_unregister_driver(&avmcs_driver);
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}
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module_init(avmcs_init);
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module_exit(avmcs_exit);
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