--- /dev/null
+/* $Id: teles_cs.c,v 1.1.2.2 2004/01/25 15:07:06 keil Exp $ */
+/*======================================================================
+
+ A teles S0 PCMCIA client driver
+
+ Based on skeleton by David Hinds, dhinds@allegro.stanford.edu
+ Written by Christof Petig, christof.petig@wtal.de
+
+ Also inspired by ELSA PCMCIA driver
+ by Klaus Lichtenwalder <Lichtenwalder@ACM.org>
+
+ Extensions to new hisax_pcmcia by Karsten Keil
+
+ minor changes to be compatible with kernel 2.4.x
+ by Jan.Schubert@GMX.li
+
+ ======================================================================*/
+
+#include <linux/kernel.h>
+#include <linux/module.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 Teles PCMCIA cards");
+MODULE_AUTHOR("Christof Petig, christof.petig@wtal.de, Karsten Keil, kkeil@suse.de");
+MODULE_LICENSE("GPL");
+
+
+/*====================================================================*/
+
+/* Parameters that can be set with 'insmod' */
+
+static int protocol = 2; /* EURO-ISDN Default */
+module_param(protocol, int, 0);
+
+static int teles_cs_config(struct pcmcia_device *link);
+static void teles_cs_release(struct pcmcia_device *link);
+static void teles_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 teles_probe(struct pcmcia_device *link)
+{
+ local_info_t *local;
+
+ dev_dbg(&link->dev, "teles_attach()\n");
+
+ /* Allocate space for private device-specific data */
+ local = kzalloc(sizeof(local_info_t), GFP_KERNEL);
+ if (!local) return -ENOMEM;
+ local->cardnr = -1;
+
+ local->p_dev = link;
+ link->priv = local;
+
+ link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
+
+ return teles_cs_config(link);
+} /* teles_attach */
+
+static void teles_detach(struct pcmcia_device *link)
+{
+ local_info_t *info = link->priv;
+
+ dev_dbg(&link->dev, "teles_detach(0x%p)\n", link);
+
+ info->busy = 1;
+ teles_cs_release(link);
+
+ kfree(info);
+} /* teles_detach */
+
+static int teles_cs_configcheck(struct pcmcia_device *p_dev, void *priv_data)
+{
+ int j;
+
+ p_dev->io_lines = 5;
+ p_dev->resource[0]->end = 96;
+ 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 "(teles_cs: looks like the 96 model)\n");
+ if (!pcmcia_request_io(p_dev))
+ return 0;
+ } else {
+ printk(KERN_INFO "(teles_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 teles_cs_config(struct pcmcia_device *link)
+{
+ int i;
+ IsdnCard_t icard;
+
+ dev_dbg(&link->dev, "teles_config(0x%p)\n", link);
+
+ i = pcmcia_loop_config(link, teles_cs_configcheck, NULL);
+ if (i != 0)
+ goto cs_failed;
+
+ if (!link->irq)
+ goto cs_failed;
+
+ i = pcmcia_enable_device(link);
+ if (i != 0)
+ goto cs_failed;
+
+ icard.para[0] = link->irq;
+ icard.para[1] = link->resource[0]->start;
+ icard.protocol = protocol;
+ icard.typ = ISDN_CTYPE_TELESPCMCIA;
+
+ i = hisax_init_pcmcia(link, &(((local_info_t *)link->priv)->busy), &icard);
+ if (i < 0) {
+ printk(KERN_ERR "teles_cs: failed to initialize Teles PCMCIA %d at i/o %#x\n",
+ i, (unsigned int) link->resource[0]->start);
+ teles_cs_release(link);
+ return -ENODEV;
+ }
+
+ ((local_info_t *)link->priv)->cardnr = i;
+ return 0;
+
+cs_failed:
+ teles_cs_release(link);
+ return -ENODEV;
+} /* teles_cs_config */
+
+static void teles_cs_release(struct pcmcia_device *link)
+{
+ local_info_t *local = link->priv;
+
+ dev_dbg(&link->dev, "teles_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);
+} /* teles_cs_release */
+
+static int teles_suspend(struct pcmcia_device *link)
+{
+ local_info_t *dev = link->priv;
+
+ dev->busy = 1;
+
+ return 0;
+}
+
+static int teles_resume(struct pcmcia_device *link)
+{
+ local_info_t *dev = link->priv;
+
+ dev->busy = 0;
+
+ return 0;
+}
+
+
+static const struct pcmcia_device_id teles_ids[] = {
+ PCMCIA_DEVICE_PROD_ID12("TELES", "S0/PC", 0x67b50eae, 0xe9e70119),
+ PCMCIA_DEVICE_NULL,
+};
+MODULE_DEVICE_TABLE(pcmcia, teles_ids);
+
+static struct pcmcia_driver teles_cs_driver = {
+ .owner = THIS_MODULE,
+ .name = "teles_cs",
+ .probe = teles_probe,
+ .remove = teles_detach,
+ .id_table = teles_ids,
+ .suspend = teles_suspend,
+ .resume = teles_resume,
+};
+module_pcmcia_driver(teles_cs_driver);
Code Review / kvmfornfv.git / blobdiff