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-rw-r--r--kernel/drivers/isdn/hisax/elsa_cs.c218
1 files changed, 218 insertions, 0 deletions
diff --git a/kernel/drivers/isdn/hisax/elsa_cs.c b/kernel/drivers/isdn/hisax/elsa_cs.c
new file mode 100644
index 000000000..40f6fad79
--- /dev/null
+++ b/kernel/drivers/isdn/hisax/elsa_cs.c
@@ -0,0 +1,218 @@
+/*======================================================================
+
+ An elsa_cs PCMCIA client driver
+
+ This driver is for the Elsa PCM ISDN Cards, i.e. the MicroLink
+
+
+ The contents of this file are subject to the Mozilla Public
+ License Version 1.1 (the "License"); you may not use this file
+ except in compliance with the License. You may obtain a copy of
+ the License at http://www.mozilla.org/MPL/
+
+ Software distributed under the License is distributed on an "AS
+ IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
+ implied. See the License for the specific language governing
+ rights and limitations under the License.
+
+ The initial developer of the original code is David A. Hinds
+ <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
+ are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
+
+ Modifications from dummy_cs.c are Copyright (C) 1999-2001 Klaus
+ Lichtenwalder <Lichtenwalder@ACM.org>. All Rights Reserved.
+
+ Alternatively, the contents of this file may be used under the
+ terms of the GNU General Public License version 2 (the "GPL"), in
+ which case the provisions of the GPL are applicable instead of the
+ above. If you wish to allow the use of your version of this file
+ only under the terms of the GPL and not to allow others to use
+ your version of this file under the MPL, indicate your decision
+ by deleting the provisions above and replace them with the notice
+ and other provisions required by the GPL. If you do not delete
+ the provisions above, a recipient may use your version of this
+ file under either the MPL or the GPL.
+
+ ======================================================================*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/ptrace.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/timer.h>
+#include <linux/ioport.h>
+#include <asm/io.h>
+
+#include <pcmcia/cistpl.h>
+#include <pcmcia/cisreg.h>
+#include <pcmcia/ds.h>
+#include "hisax_cfg.h"
+
+MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for Elsa PCM cards");
+MODULE_AUTHOR("Klaus Lichtenwalder");
+MODULE_LICENSE("Dual MPL/GPL");
+
+
+/*====================================================================*/
+
+/* Parameters that can be set with 'insmod' */
+
+static int protocol = 2; /* EURO-ISDN Default */
+module_param(protocol, int, 0);
+
+static int elsa_cs_config(struct pcmcia_device *link);
+static void elsa_cs_release(struct pcmcia_device *link);
+static void elsa_cs_detach(struct pcmcia_device *p_dev);
+
+typedef struct local_info_t {
+ struct pcmcia_device *p_dev;
+ int busy;
+ int cardnr;
+} local_info_t;
+
+static int elsa_cs_probe(struct pcmcia_device *link)
+{
+ local_info_t *local;
+
+ dev_dbg(&link->dev, "elsa_cs_attach()\n");
+
+ /* Allocate space for private device-specific data */
+ local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
+ if (!local) return -ENOMEM;
+
+ local->p_dev = link;
+ link->priv = local;
+
+ local->cardnr = -1;
+
+ return elsa_cs_config(link);
+} /* elsa_cs_attach */
+
+static void elsa_cs_detach(struct pcmcia_device *link)
+{
+ local_info_t *info = link->priv;
+
+ dev_dbg(&link->dev, "elsa_cs_detach(0x%p)\n", link);
+
+ info->busy = 1;
+ elsa_cs_release(link);
+
+ kfree(info);
+} /* elsa_cs_detach */
+
+static int elsa_cs_configcheck(struct pcmcia_device *p_dev, void *priv_data)
+{
+ int j;
+
+ p_dev->io_lines = 3;
+ p_dev->resource[0]->end = 8;
+ p_dev->resource[0]->flags &= IO_DATA_PATH_WIDTH;
+ p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
+
+ if ((p_dev->resource[0]->end) && p_dev->resource[0]->start) {
+ printk(KERN_INFO "(elsa_cs: looks like the 96 model)\n");
+ if (!pcmcia_request_io(p_dev))
+ return 0;
+ } else {
+ printk(KERN_INFO "(elsa_cs: looks like the 97 model)\n");
+ for (j = 0x2f0; j > 0x100; j -= 0x10) {
+ p_dev->resource[0]->start = j;
+ if (!pcmcia_request_io(p_dev))
+ return 0;
+ }
+ }
+ return -ENODEV;
+}
+
+static int elsa_cs_config(struct pcmcia_device *link)
+{
+ int i;
+ IsdnCard_t icard;
+
+ dev_dbg(&link->dev, "elsa_config(0x%p)\n", link);
+
+ link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
+
+ i = pcmcia_loop_config(link, elsa_cs_configcheck, NULL);
+ if (i != 0)
+ goto failed;
+
+ if (!link->irq)
+ goto failed;
+
+ i = pcmcia_enable_device(link);
+ if (i != 0)
+ goto failed;
+
+ icard.para[0] = link->irq;
+ icard.para[1] = link->resource[0]->start;
+ icard.protocol = protocol;
+ icard.typ = ISDN_CTYPE_ELSA_PCMCIA;
+
+ i = hisax_init_pcmcia(link, &(((local_info_t *)link->priv)->busy), &icard);
+ if (i < 0) {
+ printk(KERN_ERR "elsa_cs: failed to initialize Elsa "
+ "PCMCIA %d with %pR\n", i, link->resource[0]);
+ elsa_cs_release(link);
+ } else
+ ((local_info_t *)link->priv)->cardnr = i;
+
+ return 0;
+failed:
+ elsa_cs_release(link);
+ return -ENODEV;
+} /* elsa_cs_config */
+
+static void elsa_cs_release(struct pcmcia_device *link)
+{
+ local_info_t *local = link->priv;
+
+ dev_dbg(&link->dev, "elsa_cs_release(0x%p)\n", link);
+
+ if (local) {
+ if (local->cardnr >= 0) {
+ /* no unregister function with hisax */
+ HiSax_closecard(local->cardnr);
+ }
+ }
+
+ pcmcia_disable_device(link);
+} /* elsa_cs_release */
+
+static int elsa_suspend(struct pcmcia_device *link)
+{
+ local_info_t *dev = link->priv;
+
+ dev->busy = 1;
+
+ return 0;
+}
+
+static int elsa_resume(struct pcmcia_device *link)
+{
+ local_info_t *dev = link->priv;
+
+ dev->busy = 0;
+
+ return 0;
+}
+
+static const struct pcmcia_device_id elsa_ids[] = {
+ PCMCIA_DEVICE_PROD_ID12("ELSA AG (Aachen, Germany)", "MicroLink ISDN/MC ", 0x983de2c4, 0x333ba257),
+ PCMCIA_DEVICE_PROD_ID12("ELSA GmbH, Aachen", "MicroLink ISDN/MC ", 0x639e5718, 0x333ba257),
+ PCMCIA_DEVICE_NULL
+};
+MODULE_DEVICE_TABLE(pcmcia, elsa_ids);
+
+static struct pcmcia_driver elsa_cs_driver = {
+ .owner = THIS_MODULE,
+ .name = "elsa_cs",
+ .probe = elsa_cs_probe,
+ .remove = elsa_cs_detach,
+ .id_table = elsa_ids,
+ .suspend = elsa_suspend,
+ .resume = elsa_resume,
+};
+module_pcmcia_driver(elsa_cs_driver);