b1pci.c
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- /* $Id: b1pci.c,v 1.1.4.1 2001/11/20 14:19:34 kai Exp $
- *
- * Module for AVM B1 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/config.h>
- #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 <asm/io.h>
- #include <linux/init.h>
- #include "capicmd.h"
- #include "capiutil.h"
- #include "capilli.h"
- #include "avmcard.h"
- static char *revision = "$Revision: 1.1.4.1 $";
- /* ------------------------------------------------------------- */
- static struct pci_device_id b1pci_pci_tbl[] __initdata = {
- { PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_B1, PCI_ANY_ID, PCI_ANY_ID },
- { } /* Terminating entry */
- };
- MODULE_DEVICE_TABLE(pci, b1pci_pci_tbl);
- MODULE_DESCRIPTION("CAPI4Linux: Driver for AVM B1 PCI card");
- MODULE_AUTHOR("Carsten Paeth");
- MODULE_LICENSE("GPL");
- /* ------------------------------------------------------------- */
- static struct capi_driver_interface *di;
- /* ------------------------------------------------------------- */
- static void b1pci_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
- {
- avmcard *card;
- card = (avmcard *) devptr;
- if (!card) {
- printk(KERN_WARNING "b1pci: interrupt: wrong devicen");
- return;
- }
- if (card->interrupt) {
- printk(KERN_ERR "%s: reentering interrupt hander.n", card->name);
- return;
- }
- card->interrupt = 1;
- b1_handle_interrupt(card);
- card->interrupt = 0;
- }
- /* ------------------------------------------------------------- */
- static void b1pci_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);
- di->detach_ctr(ctrl);
- free_irq(card->irq, card);
- release_region(card->port, AVMB1_PORTLEN);
- ctrl->driverdata = 0;
- kfree(card->ctrlinfo);
- kfree(card);
- MOD_DEC_USE_COUNT;
- }
- /* ------------------------------------------------------------- */
- static char *b1pci_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;
- }
- /* ------------------------------------------------------------- */
- static int b1pci_add_card(struct capi_driver *driver, struct capicardparams *p)
- {
- avmcard *card;
- avmctrl_info *cinfo;
- int retval;
- MOD_INC_USE_COUNT;
- card = (avmcard *) kmalloc(sizeof(avmcard), GFP_ATOMIC);
- if (!card) {
- printk(KERN_WARNING "%s: no memory.n", driver->name);
- MOD_DEC_USE_COUNT;
- return -ENOMEM;
- }
- memset(card, 0, sizeof(avmcard));
- cinfo = (avmctrl_info *) kmalloc(sizeof(avmctrl_info), GFP_ATOMIC);
- if (!cinfo) {
- printk(KERN_WARNING "%s: no memory.n", driver->name);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -ENOMEM;
- }
- memset(cinfo, 0, sizeof(avmctrl_info));
- card->ctrlinfo = cinfo;
- cinfo->card = card;
- sprintf(card->name, "b1pci-%x", p->port);
- card->port = p->port;
- card->irq = p->irq;
- card->cardtype = avm_b1pci;
- if (check_region(card->port, AVMB1_PORTLEN)) {
- printk(KERN_WARNING
- "%s: ports 0x%03x-0x%03x in use.n",
- driver->name, card->port, card->port + AVMB1_PORTLEN);
- kfree(card->ctrlinfo);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -EBUSY;
- }
- b1_reset(card->port);
- if ((retval = b1_detect(card->port, card->cardtype)) != 0) {
- printk(KERN_NOTICE "%s: NO card at 0x%x (%d)n",
- driver->name, card->port, retval);
- kfree(card->ctrlinfo);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -EIO;
- }
- b1_reset(card->port);
- b1_getrevision(card);
- request_region(p->port, AVMB1_PORTLEN, card->name);
- retval = request_irq(card->irq, b1pci_interrupt, SA_SHIRQ, card->name, card);
- if (retval) {
- printk(KERN_ERR "%s: unable to get IRQ %d.n",
- driver->name, card->irq);
- release_region(card->port, AVMB1_PORTLEN);
- kfree(card->ctrlinfo);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -EBUSY;
- }
- cinfo->capi_ctrl = di->attach_ctr(driver, card->name, cinfo);
- if (!cinfo->capi_ctrl) {
- printk(KERN_ERR "%s: attach controller failed.n",
- driver->name);
- free_irq(card->irq, card);
- release_region(card->port, AVMB1_PORTLEN);
- kfree(card->ctrlinfo);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -EBUSY;
- }
- if (card->revision >= 4) {
- printk(KERN_INFO
- "%s: AVM B1 PCI V4 at i/o %#x, irq %d, revision %d (no dma)n",
- driver->name, card->port, card->irq, card->revision);
- } else {
- printk(KERN_INFO
- "%s: AVM B1 PCI at i/o %#x, irq %d, revision %dn",
- driver->name, card->port, card->irq, card->revision);
- }
- return 0;
- }
- /* ------------------------------------------------------------- */
- static struct capi_driver b1pci_driver = {
- name: "b1pci",
- revision: "0.0",
- load_firmware: b1_load_firmware,
- reset_ctr: b1_reset_ctr,
- remove_ctr: b1pci_remove_ctr,
- register_appl: b1_register_appl,
- release_appl: b1_release_appl,
- send_message: b1_send_message,
- procinfo: b1pci_procinfo,
- ctr_read_proc: b1ctl_read_proc,
- driver_read_proc: 0, /* use standard driver_read_proc */
- add_card: 0, /* no add_card function */
- };
- #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
- /* ------------------------------------------------------------- */
- static struct capi_driver_interface *div4;
- /* ------------------------------------------------------------- */
- static void b1pciv4_remove_ctr(struct capi_ctr *ctrl)
- {
- avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
- avmcard *card = cinfo->card;
- b1dma_reset(card);
- div4->detach_ctr(ctrl);
- free_irq(card->irq, card);
- iounmap(card->mbase);
- release_region(card->port, AVMB1_PORTLEN);
- ctrl->driverdata = 0;
- kfree(card->ctrlinfo);
- kfree(card->dma);
- kfree(card);
- MOD_DEC_USE_COUNT;
- }
- static char *b1pciv4_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 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->membase : 0,
- cinfo->card ? cinfo->card->revision : 0
- );
- return cinfo->infobuf;
- }
- /* ------------------------------------------------------------- */
- static int b1pciv4_add_card(struct capi_driver *driver, struct capicardparams *p)
- {
- avmcard *card;
- avmctrl_info *cinfo;
- int retval;
- MOD_INC_USE_COUNT;
- card = (avmcard *) kmalloc(sizeof(avmcard), GFP_ATOMIC);
- if (!card) {
- printk(KERN_WARNING "%s: no memory.n", driver->name);
- MOD_DEC_USE_COUNT;
- return -ENOMEM;
- }
- memset(card, 0, sizeof(avmcard));
- card->dma = (avmcard_dmainfo *) kmalloc(sizeof(avmcard_dmainfo), GFP_ATOMIC);
- if (!card->dma) {
- printk(KERN_WARNING "%s: no memory.n", driver->name);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -ENOMEM;
- }
- memset(card->dma, 0, sizeof(avmcard_dmainfo));
- cinfo = (avmctrl_info *) kmalloc(sizeof(avmctrl_info), GFP_ATOMIC);
- if (!cinfo) {
- printk(KERN_WARNING "%s: no memory.n", driver->name);
- kfree(card->dma);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -ENOMEM;
- }
- memset(cinfo, 0, sizeof(avmctrl_info));
- card->ctrlinfo = cinfo;
- cinfo->card = card;
- sprintf(card->name, "b1pciv4-%x", p->port);
- card->port = p->port;
- card->irq = p->irq;
- card->membase = p->membase;
- card->cardtype = avm_b1pci;
- if (check_region(card->port, AVMB1_PORTLEN)) {
- printk(KERN_WARNING
- "%s: ports 0x%03x-0x%03x in use.n",
- driver->name, card->port, card->port + AVMB1_PORTLEN);
- kfree(card->ctrlinfo);
- kfree(card->dma);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -EBUSY;
- }
- card->mbase = ioremap_nocache(card->membase, 64);
- if (!card->mbase) {
- printk(KERN_NOTICE "%s: can't remap memory at 0x%lxn",
- driver->name, card->membase);
- kfree(card->ctrlinfo);
- kfree(card->dma);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -EIO;
- }
- b1dma_reset(card);
- if ((retval = b1pciv4_detect(card)) != 0) {
- printk(KERN_NOTICE "%s: NO card at 0x%x (%d)n",
- driver->name, card->port, retval);
- iounmap(card->mbase);
- kfree(card->ctrlinfo);
- kfree(card->dma);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -EIO;
- }
- b1dma_reset(card);
- b1_getrevision(card);
- request_region(p->port, AVMB1_PORTLEN, card->name);
- retval = request_irq(card->irq, b1dma_interrupt, SA_SHIRQ, card->name, card);
- if (retval) {
- printk(KERN_ERR "%s: unable to get IRQ %d.n",
- driver->name, card->irq);
- iounmap(card->mbase);
- release_region(card->port, AVMB1_PORTLEN);
- kfree(card->ctrlinfo);
- kfree(card->dma);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -EBUSY;
- }
- cinfo->capi_ctrl = div4->attach_ctr(driver, card->name, cinfo);
- if (!cinfo->capi_ctrl) {
- printk(KERN_ERR "%s: attach controller failed.n", driver->name);
- iounmap(card->mbase);
- free_irq(card->irq, card);
- release_region(card->port, AVMB1_PORTLEN);
- kfree(card->ctrlinfo);
- kfree(card->dma);
- kfree(card);
- MOD_DEC_USE_COUNT;
- return -EBUSY;
- }
- card->cardnr = cinfo->capi_ctrl->cnr;
- skb_queue_head_init(&card->dma->send_queue);
- printk(KERN_INFO
- "%s: AVM B1 PCI V4 at i/o %#x, irq %d, mem %#lx, revision %d (dma)n",
- driver->name, card->port, card->irq,
- card->membase, card->revision);
- return 0;
- }
- /* ------------------------------------------------------------- */
- static struct capi_driver b1pciv4_driver = {
- name: "b1pciv4",
- revision: "0.0",
- load_firmware: b1dma_load_firmware,
- reset_ctr: b1dma_reset_ctr,
- remove_ctr: b1pciv4_remove_ctr,
- register_appl: b1dma_register_appl,
- release_appl: b1dma_release_appl,
- send_message: b1dma_send_message,
- procinfo: b1pciv4_procinfo,
- ctr_read_proc: b1dmactl_read_proc,
- driver_read_proc: 0, /* use standard driver_read_proc */
- add_card: 0, /* no add_card function */
- };
- #endif /* CONFIG_ISDN_DRV_AVMB1_B1PCIV4 */
- static int ncards = 0;
- static int add_card(struct pci_dev *dev)
- {
- struct capi_driver *driver = &b1pci_driver;
- struct capicardparams param;
- int retval;
- if (pci_enable_device(dev) < 0) {
- printk(KERN_ERR "%s: failed to enable AVM-B1n",
- driver->name);
- return -ENODEV;
- }
- param.irq = dev->irq;
- if (pci_resource_start(dev, 2)) { /* B1 PCI V4 */
- #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
- driver = &b1pciv4_driver;
- pci_set_master(dev);
- #endif
- param.membase = pci_resource_start(dev, 0);
- param.port = pci_resource_start(dev, 2);
- printk(KERN_INFO
- "%s: PCI BIOS reports AVM-B1 V4 at i/o %#x, irq %d, mem %#xn",
- driver->name, param.port, param.irq, param.membase);
- #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
- retval = b1pciv4_add_card(driver, ¶m);
- #else
- retval = b1pci_add_card(driver, ¶m);
- #endif
- if (retval != 0) {
- printk(KERN_ERR
- "%s: no AVM-B1 V4 at i/o %#x, irq %d, mem %#x detectedn",
- driver->name, param.port, param.irq, param.membase);
- }
- } else {
- param.membase = 0;
- param.port = pci_resource_start(dev, 1);
- printk(KERN_INFO
- "%s: PCI BIOS reports AVM-B1 at i/o %#x, irq %dn",
- driver->name, param.port, param.irq);
- retval = b1pci_add_card(driver, ¶m);
- if (retval != 0) {
- printk(KERN_ERR
- "%s: no AVM-B1 at i/o %#x, irq %d detectedn",
- driver->name, param.port, param.irq);
- }
- }
- return retval;
- }
- static int __init b1pci_init(void)
- {
- struct capi_driver *driver = &b1pci_driver;
- #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
- struct capi_driver *driverv4 = &b1pciv4_driver;
- #endif
- struct pci_dev *dev = NULL;
- char *p;
- MOD_INC_USE_COUNT;
- if ((p = strchr(revision, ':')) != 0 && p[1]) {
- strncpy(driver->revision, p + 2, sizeof(driver->revision));
- driver->revision[sizeof(driver->revision)-1] = 0;
- if ((p = strchr(driver->revision, '$')) != 0 && p > driver->revision)
- *(p-1) = 0;
- }
- #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
- if ((p = strchr(revision, ':')) != 0 && p[1]) {
- strncpy(driverv4->revision, p + 2, sizeof(driverv4->revision));
- driverv4->revision[sizeof(driverv4->revision)-1] = 0;
- if ((p = strchr(driverv4->revision, '$')) != 0 && p > driverv4->revision)
- *(p-1) = 0;
- }
- #endif
- printk(KERN_INFO "%s: revision %sn", driver->name, driver->revision);
- di = attach_capi_driver(driver);
- if (!di) {
- printk(KERN_ERR "%s: failed to attach capi_drivern",
- driver->name);
- MOD_DEC_USE_COUNT;
- return -ENODEV;
- }
- #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
- printk(KERN_INFO "%s: revision %sn", driverv4->name, driverv4->revision);
- div4 = attach_capi_driver(driverv4);
- if (!div4) {
- detach_capi_driver(driver);
- printk(KERN_ERR "%s: failed to attach capi_drivern",
- driverv4->name);
- MOD_DEC_USE_COUNT;
- return -ENODEV;
- }
- #endif
- while ((dev = pci_find_device(PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_B1, dev))) {
- if (add_card(dev) == 0)
- ncards++;
- }
- if (ncards) {
- printk(KERN_INFO "%s: %d B1-PCI card(s) detectedn",
- driver->name, ncards);
- MOD_DEC_USE_COUNT;
- return 0;
- }
- printk(KERN_ERR "%s: NO B1-PCI card detectedn", driver->name);
- detach_capi_driver(driver);
- #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
- detach_capi_driver(driverv4);
- #endif
- MOD_DEC_USE_COUNT;
- return -ENODEV;
- }
- static void __exit b1pci_exit(void)
- {
- detach_capi_driver(&b1pci_driver);
- #ifdef CONFIG_ISDN_DRV_AVMB1_B1PCIV4
- detach_capi_driver(&b1pciv4_driver);
- #endif
- }
- module_init(b1pci_init);
- module_exit(b1pci_exit);