patch-2.2.11 linux/drivers/isdn/avmb1/b1pci.c

• Lines: 328
• Date: Mon Aug 9 12:04:39 1999
• Orig file: v2.2.10/linux/drivers/isdn/avmb1/b1pci.c
• Orig date: Thu May 21 13:45:01 1998

diff -u --recursive --new-file v2.2.10/linux/drivers/isdn/avmb1/b1pci.c linux/drivers/isdn/avmb1/b1pci.c
@@ -1,40 +1,59 @@
 /*
- * $Id: b1pci.c,v 1.5 1998/01/31 11:14:43 calle Exp $
+ * $Id: b1pci.c,v 1.14 1999/07/09 15:05:41 keil Exp $
  * 
  * Module for AVM B1 PCI-card.
  * 
- * (c) Copyright 1997 by Carsten Paeth (calle@calle.in-berlin.de)
+ * (c) Copyright 1999 by Carsten Paeth (calle@calle.in-berlin.de)
  * 
  * $Log: b1pci.c,v $
- * Revision 1.5  1998/01/31 11:14:43  calle
- * merged changes to 2.0 tree, prepare 2.1.82 to work.
+ * Revision 1.14  1999/07/09 15:05:41  keil
+ * compat.h is now isdn_compat.h
  *
- * Revision 1.4  1997/12/10 20:00:50  calle
- * get changes from 2.0 version
+ * Revision 1.13  1999/07/05 15:09:50  calle
+ * - renamed "appl_release" to "appl_released".
+ * - version und profile data now cleared on controller reset
+ * - extended /proc interface, to allow driver and controller specific
+ *   informations to include by driver hackers.
  *
- * Revision 1.3  1997/10/01 09:21:14  fritz
- * Removed old compatibility stuff for 2.0.X kernels.
- * From now on, this code is for 2.1.X ONLY!
- * Old stuff is still in the separate branch.
+ * Revision 1.12  1999/07/01 15:26:29  calle
+ * complete new version (I love it):
+ * + new hardware independed "capi_driver" interface that will make it easy to:
+ *   - support other controllers with CAPI-2.0 (i.e. USB Controller)
+ *   - write a CAPI-2.0 for the passive cards
+ *   - support serial link CAPI-2.0 boxes.
+ * + wrote "capi_driver" for all supported cards.
+ * + "capi_driver" (supported cards) now have to be configured with
+ *   make menuconfig, in the past all supported cards where included
+ *   at once.
+ * + new and better informations in /proc/capi/
+ * + new ioctl to switch trace of capi messages per controller
+ *   using "avmcapictrl trace [contr] on|off|...."
+ * + complete testcircle with all supported cards and also the
+ *   PCMCIA cards (now patch for pcmcia-cs-3.0.13 needed) done.
  *
- * Revision 1.2  1997/05/18 09:24:13  calle
- * added verbose disconnect reason reporting to avmb1.
- * some fixes in capi20 interface.
- * changed info messages for B1-PCI
- *
- * Revision 1.1  1997/03/30 17:10:42  calle
- * added support for AVM-B1-PCI card.
  *
  */
 
 #include <linux/config.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/pci.h>
 #include <linux/skbuff.h>
-#include "compat.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/b1lli.h>
+#include <asm/io.h>
+#include <linux/isdn_compat.h>
+#include "capicmd.h"
+#include "capiutil.h"
+#include "capilli.h"
+#include "avmcard.h"
+
+static char *revision = "$Revision: 1.14 $";
+
+/* ------------------------------------------------------------- */
 
 #ifndef PCI_VENDOR_ID_AVM
 #define PCI_VENDOR_ID_AVM	0x1244
@@ -44,65 +63,213 @@
 #define PCI_DEVICE_ID_AVM_B1	0x700
 #endif
 
-static char *revision = "$Revision: 1.5 $";
-
 /* ------------------------------------------------------------- */
 
 MODULE_AUTHOR("Carsten Paeth <calle@calle.in-berlin.de>");
 
 /* ------------------------------------------------------------- */
 
+static struct capi_driver_interface *di;
+
 /* ------------------------------------------------------------- */
-/* -------- Init & Cleanup ------------------------------------- */
+
+static void b1pci_interrupt(int interrupt, void *devptr, struct pt_regs *regs)
+{
+	avmcard *card;
+
+	card = (avmcard *) devptr;
+
+	if (!card) {
+		printk(KERN_WARNING "b1_interrupt: wrong device\n");
+		return;
+	}
+	if (card->interrupt) {
+		printk(KERN_ERR "b1_interrupt: reentering interrupt hander (%s)\n", card->name);
+		return;
+	}
+
+	card->interrupt = 1;
+
+	b1_handle_interrupt(card);
+
+	card->interrupt = 0;
+}
 /* ------------------------------------------------------------- */
 
-/*
- * init / exit functions
- */
+static void b1pci_remove_ctr(struct capi_ctr *ctrl)
+{
+	avmcard *card = (avmcard *)(ctrl->driverdata);
+	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);
+
+	MOD_DEC_USE_COUNT;
+}
+
+/* ------------------------------------------------------------- */
+
+static char *b1pci_procinfo(struct capi_ctr *ctrl)
+{
+	avmcard *card = (avmcard *)(ctrl->driverdata);
+	if (!card)
+		return "";
+	sprintf(card->infobuf, "%s %s 0x%x %d",
+		card->cardname[0] ? card->cardname : "-",
+		card->version[VER_DRIVER] ? card->version[VER_DRIVER] : "-",
+		card->port, card->irq
+		);
+	return card->infobuf;
+}
+
+/* ------------------------------------------------------------- */
+
+static int b1pci_add_card(struct capi_driver *driver, struct capicardparams *p)
+{
+	avmcard *card;
+	int retval;
+
+	card = (avmcard *) kmalloc(sizeof(avmcard), GFP_ATOMIC);
+
+	if (!card) {
+		printk(KERN_WARNING "b1pci: no memory.\n");
+		return -ENOMEM;
+	}
+	memset(card, 0, sizeof(avmcard));
+	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
+		       "b1pci: ports 0x%03x-0x%03x in use.\n",
+		       card->port, card->port + AVMB1_PORTLEN);
+		kfree(card);
+		return -EBUSY;
+	}
+	b1_reset(card->port);
+	if ((retval = b1_detect(card->port, card->cardtype)) != 0) {
+		printk(KERN_NOTICE "b1pci: NO card at 0x%x (%d)\n",
+					card->port, retval);
+		kfree(card);
+		return -EIO;
+	}
+	b1_reset(card->port);
+
+	request_region(p->port, AVMB1_PORTLEN, card->name);
+
+	retval = request_irq(card->irq, b1pci_interrupt, 0, card->name, card);
+	if (retval) {
+		printk(KERN_ERR "b1pci: unable to get IRQ %d.\n", card->irq);
+		release_region(card->port, AVMB1_PORTLEN);
+		kfree(card);
+		return -EBUSY;
+	}
+
+	card->ctrl = di->attach_ctr(driver, card->name, card);
+	if (!card->ctrl) {
+		printk(KERN_ERR "b1pci: attach controller failed.\n");
+		free_irq(card->irq, card);
+		release_region(card->port, AVMB1_PORTLEN);
+		kfree(card);
+		return -EBUSY;
+	}
+
+	MOD_INC_USE_COUNT;
+
+	return 0;
+}
+
+/* ------------------------------------------------------------- */
+
+static struct capi_driver b1pci_driver = {
+    "b1pci",
+    "0.0",
+    b1_load_firmware,
+    b1_reset_ctr,
+    b1pci_remove_ctr,
+    b1_register_appl,
+    b1_release_appl,
+    b1_send_message,
+
+    b1pci_procinfo,
+    b1ctl_read_proc,
+    0,	/* use standard driver_read_proc */
+
+    0, /* no add_card function */
+};
 
 #ifdef MODULE
 #define b1pci_init init_module
+void cleanup_module(void);
 #endif
 
+static int ncards = 0;
+
 int b1pci_init(void)
 {
-	char *p;
-	char rev[10];
-	int rc;
+	struct capi_driver *driver = &b1pci_driver;
 	struct pci_dev *dev = NULL;
+	char *p;
+	int retval;
 
 	if ((p = strchr(revision, ':'))) {
-		strcpy(rev, p + 1);
-		p = strchr(rev, '$');
+		strncpy(driver->revision, p + 1, sizeof(driver->revision));
+		p = strchr(driver->revision, '$');
 		*p = 0;
-	} else
-		strcpy(rev, " ??? ");
+	}
+
+	printk(KERN_INFO "%s: revision %s\n", driver->name, driver->revision);
+
+        di = attach_capi_driver(driver);
 
+	if (!di) {
+		printk(KERN_ERR "%s: failed to attach capi_driver\n",
+				driver->name);
+		return -EIO;
+	}
 
 #ifdef CONFIG_PCI
 	if (!pci_present()) {
-		printk(KERN_ERR "b1pci: no PCI bus present\n");
+		printk(KERN_ERR "%s: no PCI bus present\n", driver->name);
+    		detach_capi_driver(driver);
 		return -EIO;
 	}
 
-	printk(KERN_INFO "b1pci: revision %s\n", rev);
-
 	while ((dev = pci_find_device(PCI_VENDOR_ID_AVM, PCI_DEVICE_ID_AVM_B1, dev))) {
-		unsigned int ioaddr = dev->base_address[1] & PCI_BASE_ADDRESS_IO_MASK;
-		unsigned int irq = dev->irq;
+		struct capicardparams param;
+
+		param.port = dev->base_address[1] & PCI_BASE_ADDRESS_IO_MASK;
+		param.irq = dev->irq;
 		printk(KERN_INFO
-			"b1pci: PCI BIOS reports AVM-B1 at i/o %#x, irq %d\n",
-			ioaddr, irq);
-		if ((rc = avmb1_probecard(ioaddr, irq, AVM_CARDTYPE_B1)) != 0) {
+			"%s: PCI BIOS reports AVM-B1 at i/o %#x, irq %d\n",
+			driver->name, param.port, param.irq);
+		retval = b1pci_add_card(driver, &param);
+		if (retval != 0) {
 		        printk(KERN_ERR
-			"b1pci: no AVM-B1 at i/o %#x, irq %d detected\n",
-			ioaddr, irq);
-			return rc;
+			"%s: no AVM-B1 at i/o %#x, irq %d detected\n",
+			driver->name, param.port, param.irq);
+#ifdef MODULE
+			cleanup_module();
+#endif
+			return retval;
 		}
-		if ((rc = avmb1_addcard(ioaddr, irq, AVM_CARDTYPE_B1)) < 0)
-			return rc;
+		ncards++;
 	}
-	return 0;
+	if (ncards) {
+		printk(KERN_INFO "%s: %d B1-PCI card(s) detected\n",
+				driver->name, ncards);
+		return 0;
+	}
+	printk(KERN_ERR "%s: NO B1-PCI card detected\n", driver->name);
+	return -ESRCH;
 #else
 	printk(KERN_ERR "b1pci: kernel not compiled with PCI.\n");
 	return -EIO;
@@ -112,5 +279,6 @@
 #ifdef MODULE
 void cleanup_module(void)
 {
+    detach_capi_driver(&b1pci_driver);
 }
 #endif