392 lines
11 KiB
C
392 lines
11 KiB
C
/*
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* $Id$
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*
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* Module for AVM T1 PCI-card.
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*
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* (c) Copyright 1999 by Carsten Paeth (calle@calle.in-berlin.de)
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*
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* $Log$
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* Revision 1.21 2001/03/15 09:03:33 kai
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* spelling fixes from KERNEL_2_4
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* compilation warning fixes from KERNEL_2_4
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* sedlbauer PCMCIA support module
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*
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* Revision 1.20 2001/01/22 10:26:03 calle
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* - Didn't compile with 2.2.X (pci_resource_start not defined).
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*
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* Revision 1.19 2000/12/10 22:51:05 kai
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* add pci_set_master
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* ioremap is handling unaligned regions since
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* at least 2.2.0
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*
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* Revision 1.18 2000/12/07 00:09:53 kai
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* setup dependency on CONFIG_PCI for the PCI drivers
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* in Config.in
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*
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* Revision 1.17 2000/12/05 19:15:44 kai
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* o call pci_enable_device() first of all, because this may change/assign
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* resources we use afterwards.
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* o #ifndef COMPAT_HAS_2_2_PCI is not necessary, because for 2.2
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* pci_enable_device is defined to (0)
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*
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* Revision 1.16 2000/11/28 14:26:46 calle
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* But the #ifndef PCI_DEVICE_ID_AVM* back, and let it compile again.
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* Please always check if 2.2.14-2.2.18 compile after a "std2kern -u"
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* before checkin ...
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*
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* Revision 1.15 2000/11/28 11:42:19 kai
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* merged MODULE_DEV_TABLE changes
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*
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* Revision 1.13.2.2 2000/11/26 17:47:53 kai
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* added PCI_DEV_TABLE for 2.4
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*
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* Revision 1.13.2.1 2000/11/26 17:14:19 kai
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* fix device ids
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* also needs patches to include/linux/pci_ids.h
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*
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* Revision 1.13 2000/11/23 20:45:14 kai
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* fixed module_init/exit stuff
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* Note: compiled-in kernel doesn't work pre 2.2.18 anymore.
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*
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* Revision 1.12 2000/11/01 14:05:02 calle
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* - use module_init/module_exit from linux/init.h.
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* - all static struct variables are initialized with "membername:" now.
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* - avm_cs.c, let it work with newer pcmcia-cs.
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*
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* Revision 1.11 2000/08/08 09:24:19 calle
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* calls to pci_enable_device surounded by #ifndef COMPAT_HAS_2_2_PCI
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*
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* Revision 1.10 2000/07/20 10:21:21 calle
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* Bugfix: driver will not be unregistered, if not cards were detected.
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* this result in an oops in kcapi.c
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*
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* Revision 1.9 2000/05/19 15:43:22 calle
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* added calls to pci_device_start().
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*
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* Revision 1.8 2000/05/06 00:52:36 kai
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* merged changes from kernel tree
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* fixed timer and net_device->name breakage
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*
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* Revision 1.7 2000/04/07 15:26:55 calle
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* better error message if cabel not connected or T1 has no power.
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*
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* Revision 1.6 2000/04/03 13:29:25 calle
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* make Tim Waugh happy (module unload races in 2.3.99-pre3).
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* no real problem there, but now it is much cleaner ...
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*
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* Revision 1.5 2000/02/02 18:36:04 calle
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* - Modules are now locked while init_module is running
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* - fixed problem with memory mapping if address is not aligned
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*
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* Revision 1.4 2000/01/25 14:33:38 calle
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* - Added Support AVM B1 PCI V4.0 (tested with prototype)
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* - splitted up t1pci.c into b1dma.c for common function with b1pciv4
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* - support for revision register
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*
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* Revision 1.3 1999/11/13 21:27:16 keil
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* remove KERNELVERSION
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*
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* Revision 1.2 1999/11/05 16:38:02 calle
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* Cleanups before kernel 2.4:
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* - Changed all messages to use card->name or driver->name instead of
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* constant string.
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* - Moved some data from struct avmcard into new struct avmctrl_info.
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* Changed all lowlevel capi driver to match the new structur.
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*
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* Revision 1.1 1999/10/26 15:31:42 calle
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* Added driver for T1-PCI card.
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*
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*
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*/
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#include <linux/config.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/skbuff.h>
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#include <linux/delay.h>
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#include <linux/mm.h>
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#include <linux/interrupt.h>
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#include <linux/ioport.h>
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#include <linux/pci.h>
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#include <linux/isdn_compat.h>
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#include <linux/capi.h>
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#include <linux/init.h>
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#include <asm/io.h>
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#include "capicmd.h"
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#include "capiutil.h"
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#include "capilli.h"
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#include "avmcard.h"
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static char *revision = "$Revision$";
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#undef CONFIG_T1PCI_DEBUG
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#undef CONFIG_T1PCI_POLLDEBUG
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/* ------------------------------------------------------------- */
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#ifndef COMPAT_HAS_2_2_PCI
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static struct pci_device_id t1pci_pci_tbl[] __initdata = {
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{ PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_T1, PCI_ANY_ID, PCI_ANY_ID },
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{ } /* Terminating entry */
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};
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MODULE_DEVICE_TABLE(pci, t1pci_pci_tbl);
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#endif
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MODULE_AUTHOR("Carsten Paeth <calle@calle.in-berlin.de>");
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/* ------------------------------------------------------------- */
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static struct capi_driver_interface *di;
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/* ------------------------------------------------------------- */
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static void t1pci_remove_ctr(struct capi_ctr *ctrl)
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{
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avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
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avmcard *card = cinfo->card;
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b1dma_reset(card);
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di->detach_ctr(ctrl);
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free_irq(card->irq, card);
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iounmap(card->mbase);
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release_region(card->port, AVMB1_PORTLEN);
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ctrl->driverdata = 0;
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kfree(card->ctrlinfo);
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kfree(card->dma);
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kfree(card);
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MOD_DEC_USE_COUNT;
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}
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/* ------------------------------------------------------------- */
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static int t1pci_add_card(struct capi_driver *driver, struct capicardparams *p)
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{
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avmcard *card;
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avmctrl_info *cinfo;
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int retval;
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MOD_INC_USE_COUNT;
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card = (avmcard *) kmalloc(sizeof(avmcard), GFP_ATOMIC);
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if (!card) {
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printk(KERN_WARNING "%s: no memory.\n", driver->name);
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MOD_DEC_USE_COUNT;
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return -ENOMEM;
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}
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memset(card, 0, sizeof(avmcard));
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card->dma = (avmcard_dmainfo *) kmalloc(sizeof(avmcard_dmainfo), GFP_ATOMIC);
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if (!card->dma) {
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printk(KERN_WARNING "%s: no memory.\n", driver->name);
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kfree(card);
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MOD_DEC_USE_COUNT;
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return -ENOMEM;
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}
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memset(card->dma, 0, sizeof(avmcard_dmainfo));
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cinfo = (avmctrl_info *) kmalloc(sizeof(avmctrl_info), GFP_ATOMIC);
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if (!cinfo) {
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printk(KERN_WARNING "%s: no memory.\n", driver->name);
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kfree(card->dma);
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kfree(card);
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MOD_DEC_USE_COUNT;
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return -ENOMEM;
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}
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memset(cinfo, 0, sizeof(avmctrl_info));
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card->ctrlinfo = cinfo;
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cinfo->card = card;
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sprintf(card->name, "t1pci-%x", p->port);
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card->port = p->port;
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card->irq = p->irq;
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card->membase = p->membase;
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card->cardtype = avm_t1pci;
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if (check_region(card->port, AVMB1_PORTLEN)) {
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printk(KERN_WARNING
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"%s: ports 0x%03x-0x%03x in use.\n",
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driver->name, card->port, card->port + AVMB1_PORTLEN);
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kfree(card->ctrlinfo);
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kfree(card->dma);
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kfree(card);
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MOD_DEC_USE_COUNT;
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return -EBUSY;
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}
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card->mbase = ioremap_nocache(card->membase, 64);
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if (!card->mbase) {
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printk(KERN_NOTICE "%s: can't remap memory at 0x%lx\n",
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driver->name, card->membase);
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kfree(card->ctrlinfo);
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kfree(card->dma);
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kfree(card);
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MOD_DEC_USE_COUNT;
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return -EIO;
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}
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b1dma_reset(card);
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if ((retval = t1pci_detect(card)) != 0) {
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if (retval < 6)
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printk(KERN_NOTICE "%s: NO card at 0x%x (%d)\n",
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driver->name, card->port, retval);
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else
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printk(KERN_NOTICE "%s: card at 0x%x, but cabel not connected or T1 has no power (%d)\n",
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driver->name, card->port, retval);
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iounmap(card->mbase);
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kfree(card->ctrlinfo);
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kfree(card->dma);
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kfree(card);
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MOD_DEC_USE_COUNT;
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return -EIO;
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}
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b1dma_reset(card);
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request_region(p->port, AVMB1_PORTLEN, card->name);
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retval = request_irq(card->irq, b1dma_interrupt, SA_SHIRQ, card->name, card);
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if (retval) {
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printk(KERN_ERR "%s: unable to get IRQ %d.\n",
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driver->name, card->irq);
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iounmap(card->mbase);
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release_region(card->port, AVMB1_PORTLEN);
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kfree(card->ctrlinfo);
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kfree(card->dma);
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kfree(card);
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MOD_DEC_USE_COUNT;
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return -EBUSY;
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}
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cinfo->capi_ctrl = di->attach_ctr(driver, card->name, cinfo);
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if (!cinfo->capi_ctrl) {
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printk(KERN_ERR "%s: attach controller failed.\n", driver->name);
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iounmap(card->mbase);
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free_irq(card->irq, card);
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release_region(card->port, AVMB1_PORTLEN);
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kfree(card->ctrlinfo);
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kfree(card->dma);
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kfree(card);
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MOD_DEC_USE_COUNT;
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return -EBUSY;
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}
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card->cardnr = cinfo->capi_ctrl->cnr;
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skb_queue_head_init(&card->dma->send_queue);
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printk(KERN_INFO
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"%s: AVM T1 PCI at i/o %#x, irq %d, mem %#lx\n",
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driver->name, card->port, card->irq, card->membase);
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return 0;
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}
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/* ------------------------------------------------------------- */
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static char *t1pci_procinfo(struct capi_ctr *ctrl)
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{
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avmctrl_info *cinfo = (avmctrl_info *)(ctrl->driverdata);
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if (!cinfo)
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return "";
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sprintf(cinfo->infobuf, "%s %s 0x%x %d 0x%lx",
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cinfo->cardname[0] ? cinfo->cardname : "-",
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cinfo->version[VER_DRIVER] ? cinfo->version[VER_DRIVER] : "-",
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cinfo->card ? cinfo->card->port : 0x0,
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cinfo->card ? cinfo->card->irq : 0,
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cinfo->card ? cinfo->card->membase : 0
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);
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return cinfo->infobuf;
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}
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/* ------------------------------------------------------------- */
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static struct capi_driver t1pci_driver = {
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name: "t1pci",
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revision: "0.0",
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load_firmware: b1dma_load_firmware,
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reset_ctr: b1dma_reset_ctr,
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remove_ctr: t1pci_remove_ctr,
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register_appl: b1dma_register_appl,
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release_appl: b1dma_release_appl,
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send_message: b1dma_send_message,
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procinfo: t1pci_procinfo,
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ctr_read_proc: b1dmactl_read_proc,
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driver_read_proc: 0, /* use standard driver_read_proc */
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add_card: 0, /* no add_card function */
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};
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static int ncards = 0;
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static int __init t1pci_init(void)
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{
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struct capi_driver *driver = &t1pci_driver;
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struct pci_dev *dev = NULL;
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char *p;
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int retval;
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MOD_INC_USE_COUNT;
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if ((p = strchr(revision, ':'))) {
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strncpy(driver->revision, p + 1, sizeof(driver->revision));
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p = strchr(driver->revision, '$');
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*p = 0;
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}
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printk(KERN_INFO "%s: revision %s\n", driver->name, driver->revision);
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di = attach_capi_driver(driver);
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if (!di) {
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printk(KERN_ERR "%s: failed to attach capi_driver\n",
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driver->name);
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MOD_DEC_USE_COUNT;
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return -EIO;
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}
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while ((dev = pci_find_device(PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_T1, dev))) {
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struct capicardparams param;
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if (pci_enable_device(dev) < 0) {
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printk(KERN_ERR "%s: failed to enable AVM-T1-PCI\n",
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driver->name);
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continue;
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}
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pci_set_master(dev);
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param.port = pci_resource_start_io(dev, 1);
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param.irq = dev->irq;
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param.membase = pci_resource_start_mem(dev, 0);
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printk(KERN_INFO
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"%s: PCI BIOS reports AVM-T1-PCI at i/o %#x, irq %d, mem %#x\n",
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driver->name, param.port, param.irq, param.membase);
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retval = t1pci_add_card(driver, ¶m);
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if (retval != 0) {
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printk(KERN_ERR
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"%s: no AVM-T1-PCI at i/o %#x, irq %d detected, mem %#x\n",
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driver->name, param.port, param.irq, param.membase);
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continue;
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}
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ncards++;
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}
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if (ncards) {
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printk(KERN_INFO "%s: %d T1-PCI card(s) detected\n",
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driver->name, ncards);
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MOD_DEC_USE_COUNT;
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return 0;
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}
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printk(KERN_ERR "%s: NO T1-PCI card detected\n", driver->name);
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detach_capi_driver(&t1pci_driver);
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MOD_DEC_USE_COUNT;
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return -ENODEV;
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}
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static void __exit t1pci_exit(void)
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{
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detach_capi_driver(&t1pci_driver);
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}
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module_init(t1pci_init);
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module_exit(t1pci_exit);
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