diff options
Diffstat (limited to 'drivers/isdn/hardware/avm/b1pcmcia.c')
| -rw-r--r-- | drivers/isdn/hardware/avm/b1pcmcia.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/drivers/isdn/hardware/avm/b1pcmcia.c b/drivers/isdn/hardware/avm/b1pcmcia.c new file mode 100644 index 000000000..3aca16e62 --- /dev/null +++ b/drivers/isdn/hardware/avm/b1pcmcia.c @@ -0,0 +1,224 @@ +/* $Id: b1pcmcia.c,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $ + * + * Module for AVM B1/M1/M2 PCMCIA-card. + * + * Copyright 1999 by Carsten Paeth <calle@calle.de> + * + * This software may be used and distributed according to the terms + * of the GNU General Public License, incorporated herein by reference. + * + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/skbuff.h> +#include <linux/delay.h> +#include <linux/mm.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/capi.h> +#include <linux/b1pcmcia.h> +#include <linux/isdn/capicmd.h> +#include <linux/isdn/capiutil.h> +#include <linux/isdn/capilli.h> +#include "avmcard.h" + +/* ------------------------------------------------------------- */ + +static char *revision = "$Revision: 1.1.2.2 $"; + +/* ------------------------------------------------------------- */ + +MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM PCMCIA cards"); +MODULE_AUTHOR("Carsten Paeth"); +MODULE_LICENSE("GPL"); + +/* ------------------------------------------------------------- */ + +static void b1pcmcia_remove_ctr(struct capi_ctr *ctrl) +{ + avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); + avmcard *card = cinfo->card; + unsigned int port = card->port; + + b1_reset(port); + b1_reset(port); + + detach_capi_ctr(ctrl); + free_irq(card->irq, card); + b1_free_card(card); +} + +/* ------------------------------------------------------------- */ + +static LIST_HEAD(cards); + +static char *b1pcmcia_procinfo(struct capi_ctr *ctrl); + +static int b1pcmcia_add_card(unsigned int port, unsigned irq, + enum avmcardtype cardtype) +{ + avmctrl_info *cinfo; + avmcard *card; + char *cardname; + int retval; + + card = b1_alloc_card(1); + if (!card) { + printk(KERN_WARNING "b1pcmcia: no memory.\n"); + retval = -ENOMEM; + goto err; + } + cinfo = card->ctrlinfo; + + switch (cardtype) { + case avm_m1: sprintf(card->name, "m1-%x", port); break; + case avm_m2: sprintf(card->name, "m2-%x", port); break; + default: sprintf(card->name, "b1pcmcia-%x", port); break; + } + card->port = port; + card->irq = irq; + card->cardtype = cardtype; + + retval = request_irq(card->irq, b1_interrupt, IRQF_SHARED, card->name, card); + if (retval) { + printk(KERN_ERR "b1pcmcia: unable to get IRQ %d.\n", + card->irq); + retval = -EBUSY; + goto err_free; + } + b1_reset(card->port); + if ((retval = b1_detect(card->port, card->cardtype)) != 0) { + printk(KERN_NOTICE "b1pcmcia: NO card at 0x%x (%d)\n", + card->port, retval); + retval = -ENODEV; + goto err_free_irq; + } + b1_reset(card->port); + b1_getrevision(card); + + cinfo->capi_ctrl.owner = THIS_MODULE; + cinfo->capi_ctrl.driver_name = "b1pcmcia"; + cinfo->capi_ctrl.driverdata = cinfo; + cinfo->capi_ctrl.register_appl = b1_register_appl; + cinfo->capi_ctrl.release_appl = b1_release_appl; + cinfo->capi_ctrl.send_message = b1_send_message; + cinfo->capi_ctrl.load_firmware = b1_load_firmware; + cinfo->capi_ctrl.reset_ctr = b1_reset_ctr; + cinfo->capi_ctrl.procinfo = b1pcmcia_procinfo; + cinfo->capi_ctrl.proc_show = b1_proc_show; + strcpy(cinfo->capi_ctrl.name, card->name); + + retval = attach_capi_ctr(&cinfo->capi_ctrl); + if (retval) { + printk(KERN_ERR "b1pcmcia: attach controller failed.\n"); + goto err_free_irq; + } + switch (cardtype) { + case avm_m1: cardname = "M1"; break; + case avm_m2: cardname = "M2"; break; + default: cardname = "B1 PCMCIA"; break; + } + + printk(KERN_INFO "b1pcmcia: AVM %s at i/o %#x, irq %d, revision %d\n", + cardname, card->port, card->irq, card->revision); + + list_add(&card->list, &cards); + return cinfo->capi_ctrl.cnr; + +err_free_irq: + free_irq(card->irq, card); +err_free: + b1_free_card(card); +err: + return retval; +} + +/* ------------------------------------------------------------- */ + +static char *b1pcmcia_procinfo(struct capi_ctr *ctrl) +{ + avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); + + if (!cinfo) + return ""; + sprintf(cinfo->infobuf, "%s %s 0x%x %d r%d", + cinfo->cardname[0] ? cinfo->cardname : "-", + cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-", + cinfo->card ? cinfo->card->port : 0x0, + cinfo->card ? cinfo->card->irq : 0, + cinfo->card ? cinfo->card->revision : 0 + ); + return cinfo->infobuf; +} + +/* ------------------------------------------------------------- */ + +int b1pcmcia_addcard_b1(unsigned int port, unsigned irq) +{ + return b1pcmcia_add_card(port, irq, avm_b1pcmcia); +} + +int b1pcmcia_addcard_m1(unsigned int port, unsigned irq) +{ + return b1pcmcia_add_card(port, irq, avm_m1); +} + +int b1pcmcia_addcard_m2(unsigned int port, unsigned irq) +{ + return b1pcmcia_add_card(port, irq, avm_m2); +} + +int b1pcmcia_delcard(unsigned int port, unsigned irq) +{ + struct list_head *l; + avmcard *card; + + list_for_each(l, &cards) { + card = list_entry(l, avmcard, list); + if (card->port == port && card->irq == irq) { + b1pcmcia_remove_ctr(&card->ctrlinfo[0].capi_ctrl); + return 0; + } + } + return -ESRCH; +} + +EXPORT_SYMBOL(b1pcmcia_addcard_b1); +EXPORT_SYMBOL(b1pcmcia_addcard_m1); +EXPORT_SYMBOL(b1pcmcia_addcard_m2); +EXPORT_SYMBOL(b1pcmcia_delcard); + +static struct capi_driver capi_driver_b1pcmcia = { + .name = "b1pcmcia", + .revision = "1.0", +}; + +static int __init b1pcmcia_init(void) +{ + char *p; + char rev[32]; + + if ((p = strchr(revision, ':')) != NULL && p[1]) { + strlcpy(rev, p + 2, 32); + if ((p = strchr(rev, '$')) != NULL && p > rev) + *(p - 1) = 0; + } else + strcpy(rev, "1.0"); + + strlcpy(capi_driver_b1pcmcia.revision, rev, 32); + register_capi_driver(&capi_driver_b1pcmcia); + printk(KERN_INFO "b1pci: revision %s\n", rev); + + return 0; +} + +static void __exit b1pcmcia_exit(void) +{ + unregister_capi_driver(&capi_driver_b1pcmcia); +} + +module_init(b1pcmcia_init); +module_exit(b1pcmcia_exit); |