diff options
Diffstat (limited to 'drivers/isdn/hardware/avm/t1pci.c')
| -rw-r--r-- | drivers/isdn/hardware/avm/t1pci.c | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/drivers/isdn/hardware/avm/t1pci.c b/drivers/isdn/hardware/avm/t1pci.c new file mode 100644 index 000000000..f5ed1d500 --- /dev/null +++ b/drivers/isdn/hardware/avm/t1pci.c @@ -0,0 +1,259 @@ +/* $Id: t1pci.c,v 1.1.2.2 2004/01/16 21:09:27 keil Exp $ + * + * Module for AVM T1 PCI-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/pci.h> +#include <linux/capi.h> +#include <linux/init.h> +#include <asm/io.h> +#include <linux/isdn/capicmd.h> +#include <linux/isdn/capiutil.h> +#include <linux/isdn/capilli.h> +#include "avmcard.h" + +#undef CONFIG_T1PCI_DEBUG +#undef CONFIG_T1PCI_POLLDEBUG + +/* ------------------------------------------------------------- */ +static char *revision = "$Revision: 1.1.2.2 $"; +/* ------------------------------------------------------------- */ + +static struct pci_device_id t1pci_pci_tbl[] = { + { PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_T1, PCI_ANY_ID, PCI_ANY_ID }, + { } /* Terminating entry */ +}; + +MODULE_DEVICE_TABLE(pci, t1pci_pci_tbl); +MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM T1 PCI card"); +MODULE_AUTHOR("Carsten Paeth"); +MODULE_LICENSE("GPL"); + +/* ------------------------------------------------------------- */ + +static char *t1pci_procinfo(struct capi_ctr *ctrl); + +static int t1pci_add_card(struct capicardparams *p, struct pci_dev *pdev) +{ + avmcard *card; + avmctrl_info *cinfo; + int retval; + + card = b1_alloc_card(1); + if (!card) { + printk(KERN_WARNING "t1pci: no memory.\n"); + retval = -ENOMEM; + goto err; + } + + card->dma = avmcard_dma_alloc("t1pci", pdev, 2048 + 128, 2048 + 128); + if (!card->dma) { + printk(KERN_WARNING "t1pci: no memory.\n"); + retval = -ENOMEM; + goto err_free; + } + + cinfo = card->ctrlinfo; + sprintf(card->name, "t1pci-%x", p->port); + card->port = p->port; + card->irq = p->irq; + card->membase = p->membase; + card->cardtype = avm_t1pci; + + if (!request_region(card->port, AVMB1_PORTLEN, card->name)) { + printk(KERN_WARNING "t1pci: ports 0x%03x-0x%03x in use.\n", + card->port, card->port + AVMB1_PORTLEN); + retval = -EBUSY; + goto err_free_dma; + } + + card->mbase = ioremap(card->membase, 64); + if (!card->mbase) { + printk(KERN_NOTICE "t1pci: can't remap memory at 0x%lx\n", + card->membase); + retval = -EIO; + goto err_release_region; + } + + b1dma_reset(card); + + retval = t1pci_detect(card); + if (retval != 0) { + if (retval < 6) + printk(KERN_NOTICE "t1pci: NO card at 0x%x (%d)\n", + card->port, retval); + else + printk(KERN_NOTICE "t1pci: card at 0x%x, but cable not connected or T1 has no power (%d)\n", + card->port, retval); + retval = -EIO; + goto err_unmap; + } + b1dma_reset(card); + + retval = request_irq(card->irq, b1dma_interrupt, IRQF_SHARED, card->name, card); + if (retval) { + printk(KERN_ERR "t1pci: unable to get IRQ %d.\n", card->irq); + retval = -EBUSY; + goto err_unmap; + } + + cinfo->capi_ctrl.owner = THIS_MODULE; + cinfo->capi_ctrl.driver_name = "t1pci"; + cinfo->capi_ctrl.driverdata = cinfo; + cinfo->capi_ctrl.register_appl = b1dma_register_appl; + cinfo->capi_ctrl.release_appl = b1dma_release_appl; + cinfo->capi_ctrl.send_message = b1dma_send_message; + cinfo->capi_ctrl.load_firmware = b1dma_load_firmware; + cinfo->capi_ctrl.reset_ctr = b1dma_reset_ctr; + cinfo->capi_ctrl.procinfo = t1pci_procinfo; + cinfo->capi_ctrl.proc_show = b1dma_proc_show; + strcpy(cinfo->capi_ctrl.name, card->name); + + retval = attach_capi_ctr(&cinfo->capi_ctrl); + if (retval) { + printk(KERN_ERR "t1pci: attach controller failed.\n"); + retval = -EBUSY; + goto err_free_irq; + } + card->cardnr = cinfo->capi_ctrl.cnr; + + printk(KERN_INFO "t1pci: AVM T1 PCI at i/o %#x, irq %d, mem %#lx\n", + card->port, card->irq, card->membase); + + pci_set_drvdata(pdev, card); + return 0; + +err_free_irq: + free_irq(card->irq, card); +err_unmap: + iounmap(card->mbase); +err_release_region: + release_region(card->port, AVMB1_PORTLEN); +err_free_dma: + avmcard_dma_free(card->dma); +err_free: + b1_free_card(card); +err: + return retval; +} + +/* ------------------------------------------------------------- */ + +static void t1pci_remove(struct pci_dev *pdev) +{ + avmcard *card = pci_get_drvdata(pdev); + avmctrl_info *cinfo = card->ctrlinfo; + + b1dma_reset(card); + + detach_capi_ctr(&cinfo->capi_ctrl); + free_irq(card->irq, card); + iounmap(card->mbase); + release_region(card->port, AVMB1_PORTLEN); + avmcard_dma_free(card->dma); + b1_free_card(card); +} + +/* ------------------------------------------------------------- */ + +static char *t1pci_procinfo(struct capi_ctr *ctrl) +{ + avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata); + + if (!cinfo) + return ""; + sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx", + 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->membase : 0 + ); + return cinfo->infobuf; +} + +/* ------------------------------------------------------------- */ + +static int t1pci_probe(struct pci_dev *dev, const struct pci_device_id *ent) +{ + struct capicardparams param; + int retval; + + if (pci_enable_device(dev) < 0) { + printk(KERN_ERR "t1pci: failed to enable AVM-T1-PCI\n"); + return -ENODEV; + } + pci_set_master(dev); + + param.port = pci_resource_start(dev, 1); + param.irq = dev->irq; + param.membase = pci_resource_start(dev, 0); + + printk(KERN_INFO "t1pci: PCI BIOS reports AVM-T1-PCI at i/o %#x, irq %d, mem %#x\n", + param.port, param.irq, param.membase); + + retval = t1pci_add_card(¶m, dev); + if (retval != 0) { + printk(KERN_ERR "t1pci: no AVM-T1-PCI at i/o %#x, irq %d detected, mem %#x\n", + param.port, param.irq, param.membase); + pci_disable_device(dev); + return -ENODEV; + } + return 0; +} + +static struct pci_driver t1pci_pci_driver = { + .name = "t1pci", + .id_table = t1pci_pci_tbl, + .probe = t1pci_probe, + .remove = t1pci_remove, +}; + +static struct capi_driver capi_driver_t1pci = { + .name = "t1pci", + .revision = "1.0", +}; + +static int __init t1pci_init(void) +{ + char *p; + char rev[32]; + int err; + + 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"); + + err = pci_register_driver(&t1pci_pci_driver); + if (!err) { + strlcpy(capi_driver_t1pci.revision, rev, 32); + register_capi_driver(&capi_driver_t1pci); + printk(KERN_INFO "t1pci: revision %s\n", rev); + } + return err; +} + +static void __exit t1pci_exit(void) +{ + unregister_capi_driver(&capi_driver_t1pci); + pci_unregister_driver(&t1pci_pci_driver); +} + +module_init(t1pci_init); +module_exit(t1pci_exit); |