diff options
Diffstat (limited to 'drivers/isdn/hardware/avm/b1isa.c')
| -rw-r--r-- | drivers/isdn/hardware/avm/b1isa.c | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/drivers/isdn/hardware/avm/b1isa.c b/drivers/isdn/hardware/avm/b1isa.c new file mode 100644 index 000000000..31ef8130a --- /dev/null +++ b/drivers/isdn/hardware/avm/b1isa.c @@ -0,0 +1,243 @@ +/* $Id: b1isa.c,v 1.1.2.3 2004/02/10 01:07:12 keil Exp $ + * + * Module for AVM B1 ISA-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/capi.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <asm/io.h> +#include <linux/isdn/capicmd.h> +#include <linux/isdn/capiutil.h> +#include <linux/isdn/capilli.h> +#include "avmcard.h" + +/* ------------------------------------------------------------- */ + +static char *revision = "$Revision: 1.1.2.3 $"; + +/* ------------------------------------------------------------- */ + +MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM B1 ISA card"); +MODULE_AUTHOR("Carsten Paeth"); +MODULE_LICENSE("GPL"); + +/* ------------------------------------------------------------- */ + +static void b1isa_remove(struct pci_dev *pdev) +{ + avmctrl_info *cinfo = pci_get_drvdata(pdev); + avmcard *card; + + if (!cinfo) + return; + + card = cinfo->card; + + b1_reset(card->port); + b1_reset(card->port); + + detach_capi_ctr(&cinfo->capi_ctrl); + free_irq(card->irq, card); + release_region(card->port, AVMB1_PORTLEN); + b1_free_card(card); +} + +/* ------------------------------------------------------------- */ + +static char *b1isa_procinfo(struct capi_ctr *ctrl); + +static int b1isa_probe(struct pci_dev *pdev) +{ + avmctrl_info *cinfo; + avmcard *card; + int retval; + + card = b1_alloc_card(1); + if (!card) { + printk(KERN_WARNING "b1isa: no memory.\n"); + retval = -ENOMEM; + goto err; + } + + cinfo = card->ctrlinfo; + + card->port = pci_resource_start(pdev, 0); + card->irq = pdev->irq; + card->cardtype = avm_b1isa; + sprintf(card->name, "b1isa-%x", card->port); + + if (card->port != 0x150 && card->port != 0x250 + && card->port != 0x300 && card->port != 0x340) { + printk(KERN_WARNING "b1isa: invalid port 0x%x.\n", card->port); + retval = -EINVAL; + goto err_free; + } + if (b1_irq_table[card->irq & 0xf] == 0) { + printk(KERN_WARNING "b1isa: irq %d not valid.\n", card->irq); + retval = -EINVAL; + goto err_free; + } + if (!request_region(card->port, AVMB1_PORTLEN, card->name)) { + printk(KERN_WARNING "b1isa: ports 0x%03x-0x%03x in use.\n", + card->port, card->port + AVMB1_PORTLEN); + retval = -EBUSY; + goto err_free; + } + retval = request_irq(card->irq, b1_interrupt, 0, card->name, card); + if (retval) { + printk(KERN_ERR "b1isa: unable to get IRQ %d.\n", card->irq); + goto err_release_region; + } + b1_reset(card->port); + if ((retval = b1_detect(card->port, card->cardtype)) != 0) { + printk(KERN_NOTICE "b1isa: 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 = "b1isa"; + 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 = b1isa_procinfo; + cinfo->capi_ctrl.proc_fops = &b1ctl_proc_fops; + strcpy(cinfo->capi_ctrl.name, card->name); + + retval = attach_capi_ctr(&cinfo->capi_ctrl); + if (retval) { + printk(KERN_ERR "b1isa: attach controller failed.\n"); + goto err_free_irq; + } + + printk(KERN_INFO "b1isa: AVM B1 ISA at i/o %#x, irq %d, revision %d\n", + card->port, card->irq, card->revision); + + pci_set_drvdata(pdev, cinfo); + return 0; + +err_free_irq: + free_irq(card->irq, card); +err_release_region: + release_region(card->port, AVMB1_PORTLEN); +err_free: + b1_free_card(card); +err: + return retval; +} + +static char *b1isa_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; +} + +/* ------------------------------------------------------------- */ + +#define MAX_CARDS 4 +static struct pci_dev isa_dev[MAX_CARDS]; +static int io[MAX_CARDS]; +static int irq[MAX_CARDS]; + +module_param_array(io, int, NULL, 0); +module_param_array(irq, int, NULL, 0); +MODULE_PARM_DESC(io, "I/O base address(es)"); +MODULE_PARM_DESC(irq, "IRQ number(s) (assigned)"); + +static int b1isa_add_card(struct capi_driver *driver, capicardparams *data) +{ + int i; + + for (i = 0; i < MAX_CARDS; i++) { + if (isa_dev[i].resource[0].start) + continue; + + isa_dev[i].resource[0].start = data->port; + isa_dev[i].irq = data->irq; + + if (b1isa_probe(&isa_dev[i]) == 0) + return 0; + } + return -ENODEV; +} + +static struct capi_driver capi_driver_b1isa = { + .name = "b1isa", + .revision = "1.0", + .add_card = b1isa_add_card, +}; + +static int __init b1isa_init(void) +{ + char *p; + char rev[32]; + int i; + + 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"); + + for (i = 0; i < MAX_CARDS; i++) { + if (!io[i]) + break; + + isa_dev[i].resource[0].start = io[i]; + isa_dev[i].irq = irq[i]; + + if (b1isa_probe(&isa_dev[i]) != 0) + return -ENODEV; + } + + strlcpy(capi_driver_b1isa.revision, rev, 32); + register_capi_driver(&capi_driver_b1isa); + printk(KERN_INFO "b1isa: revision %s\n", rev); + + return 0; +} + +static void __exit b1isa_exit(void) +{ + int i; + + for (i = 0; i < MAX_CARDS; i++) { + if (isa_dev[i].resource[0].start) + b1isa_remove(&isa_dev[i]); + } + unregister_capi_driver(&capi_driver_b1isa); +} + +module_init(b1isa_init); +module_exit(b1isa_exit); |