patch-2.3.14 linux/drivers/isdn/avmb1/b1isa.c

• Lines: 238
• Date: Sun Aug 15 11:49:08 1999
• Orig file: v2.3.13/linux/drivers/isdn/avmb1/b1isa.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.13/linux/drivers/isdn/avmb1/b1isa.c linux/drivers/isdn/avmb1/b1isa.c
@@ -0,0 +1,237 @@
+/*
+ * $Id: b1isa.c,v 1.3 1999/07/09 15:05:40 keil Exp $
+ * 
+ * Module for AVM B1 ISA-card.
+ * 
+ * (c) Copyright 1999 by Carsten Paeth (calle@calle.in-berlin.de)
+ * 
+ * $Log: b1isa.c,v $
+ * Revision 1.3  1999/07/09 15:05:40  keil
+ * compat.h is now isdn_compat.h
+ *
+ * Revision 1.2  1999/07/05 15:09:49  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 1.1  1999/07/01 15:26:27  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.
+ *
+ *
+ */
+
+#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 <asm/io.h>
+#include <linux/isdn_compat.h>
+#include "capicmd.h"
+#include "capiutil.h"
+#include "capilli.h"
+#include "avmcard.h"
+
+static char *revision = "$Revision: 1.3 $";
+
+/* ------------------------------------------------------------- */
+
+MODULE_AUTHOR("Carsten Paeth <calle@calle.in-berlin.de>");
+
+/* ------------------------------------------------------------- */
+
+static struct capi_driver_interface *di;
+
+/* ------------------------------------------------------------- */
+
+static void b1isa_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;
+}
+/* ------------------------------------------------------------- */
+
+static void b1isa_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);
+	kfree(card);
+
+	MOD_DEC_USE_COUNT;
+}
+
+/* ------------------------------------------------------------- */
+
+static int b1isa_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 "b1isa: no memory.\n");
+		return -ENOMEM;
+	}
+	memset(card, 0, sizeof(avmcard));
+	sprintf(card->name, "b1isa-%x", p->port);
+	card->port = p->port;
+	card->irq = p->irq;
+	card->cardtype = avm_b1isa;
+
+	if (check_region(card->port, AVMB1_PORTLEN)) {
+		printk(KERN_WARNING
+		       "b1isa: ports 0x%03x-0x%03x in use.\n",
+		       card->port, card->port + AVMB1_PORTLEN);
+		kfree(card);
+		return -EBUSY;
+	}
+	if (b1_irq_table[card->irq & 0xf] == 0) {
+		printk(KERN_WARNING "b1isa: irq %d not valid.\n", card->irq);
+		kfree(card);
+		return -EINVAL;
+	}
+	if (   card->port != 0x150 && card->port != 0x250
+	    && card->port != 0x300 && card->port != 0x340) {
+		printk(KERN_WARNING "b1isa: illegal port 0x%x.\n", card->port);
+		kfree(card);
+		return -EINVAL;
+	}
+	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);
+		kfree(card);
+		return -EIO;
+	}
+	b1_reset(card->port);
+
+	request_region(p->port, AVMB1_PORTLEN, card->name);
+
+	retval = request_irq(card->irq, b1isa_interrupt, 0, card->name, card);
+	if (retval) {
+		printk(KERN_ERR "b1isa: 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 "b1isa: 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 char *b1isa_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 struct capi_driver b1isa_driver = {
+    "b1isa",
+    "0.0",
+    b1_load_firmware,
+    b1_reset_ctr,
+    b1isa_remove_ctr,
+    b1_register_appl,
+    b1_release_appl,
+    b1_send_message,
+
+    b1isa_procinfo,
+    b1ctl_read_proc,
+    0,	/* use standard driver_read_proc */
+
+    b1isa_add_card,
+};
+
+#ifdef MODULE
+#define b1isa_init init_module
+void cleanup_module(void);
+#endif
+
+int b1isa_init(void)
+{
+	struct capi_driver *driver = &b1isa_driver;
+	char *p;
+
+	if ((p = strchr(revision, ':'))) {
+		strncpy(driver->revision, p + 1, sizeof(driver->revision));
+		p = strchr(driver->revision, '$');
+		*p = 0;
+	} 
+
+	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;
+	}
+	return 0;
+}
+
+#ifdef MODULE
+void cleanup_module(void)
+{
+    detach_capi_driver(&b1isa_driver);
+}
+#endif