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path: root/drivers/scsi/pcmcia/fdomain_stub.c
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Diffstat (limited to 'drivers/scsi/pcmcia/fdomain_stub.c')
-rw-r--r--drivers/scsi/pcmcia/fdomain_stub.c323
1 files changed, 323 insertions, 0 deletions
diff --git a/drivers/scsi/pcmcia/fdomain_stub.c b/drivers/scsi/pcmcia/fdomain_stub.c
new file mode 100644
index 00000000000..3df7bc72e35
--- /dev/null
+++ b/drivers/scsi/pcmcia/fdomain_stub.c
@@ -0,0 +1,323 @@
+/*======================================================================
+
+ A driver for Future Domain-compatible PCMCIA SCSI cards
+
+ fdomain_cs.c 1.47 2001/10/13 00:08:52
+
+ 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.
+
+ 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/init.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <scsi/scsi.h>
+#include <linux/major.h>
+#include <linux/blkdev.h>
+#include <scsi/scsi_ioctl.h>
+
+#include "scsi.h"
+#include <scsi/scsi_host.h>
+#include "fdomain.h"
+
+#include <pcmcia/version.h>
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ds.h>
+
+/*====================================================================*/
+
+/* Module parameters */
+
+MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>");
+MODULE_DESCRIPTION("Future Domain PCMCIA SCSI driver");
+MODULE_LICENSE("Dual MPL/GPL");
+
+#ifdef PCMCIA_DEBUG
+static int pc_debug = PCMCIA_DEBUG;
+module_param(pc_debug, int, 0);
+#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
+static char *version =
+"fdomain_cs.c 1.47 2001/10/13 00:08:52 (David Hinds)";
+#else
+#define DEBUG(n, args...)
+#endif
+
+/*====================================================================*/
+
+typedef struct scsi_info_t {
+ dev_link_t link;
+ dev_node_t node;
+ struct Scsi_Host *host;
+} scsi_info_t;
+
+
+static void fdomain_release(dev_link_t *link);
+static int fdomain_event(event_t event, int priority,
+ event_callback_args_t *args);
+
+static dev_link_t *fdomain_attach(void);
+static void fdomain_detach(dev_link_t *);
+
+
+static dev_link_t *dev_list = NULL;
+
+static dev_info_t dev_info = "fdomain_cs";
+
+static dev_link_t *fdomain_attach(void)
+{
+ scsi_info_t *info;
+ client_reg_t client_reg;
+ dev_link_t *link;
+ int ret;
+
+ DEBUG(0, "fdomain_attach()\n");
+
+ /* Create new SCSI device */
+ info = kmalloc(sizeof(*info), GFP_KERNEL);
+ if (!info) return NULL;
+ memset(info, 0, sizeof(*info));
+ link = &info->link; link->priv = info;
+ link->io.NumPorts1 = 0x10;
+ link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
+ link->io.IOAddrLines = 10;
+ link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
+ link->irq.IRQInfo1 = IRQ_LEVEL_ID;
+ link->conf.Attributes = CONF_ENABLE_IRQ;
+ link->conf.Vcc = 50;
+ link->conf.IntType = INT_MEMORY_AND_IO;
+ link->conf.Present = PRESENT_OPTION;
+
+ /* Register with Card Services */
+ link->next = dev_list;
+ dev_list = link;
+ client_reg.dev_info = &dev_info;
+ client_reg.event_handler = &fdomain_event;
+ client_reg.EventMask =
+ CS_EVENT_RESET_REQUEST | CS_EVENT_CARD_RESET |
+ CS_EVENT_CARD_INSERTION | CS_EVENT_CARD_REMOVAL |
+ CS_EVENT_PM_SUSPEND | CS_EVENT_PM_RESUME;
+ client_reg.Version = 0x0210;
+ client_reg.event_callback_args.client_data = link;
+ ret = pcmcia_register_client(&link->handle, &client_reg);
+ if (ret != 0) {
+ cs_error(link->handle, RegisterClient, ret);
+ fdomain_detach(link);
+ return NULL;
+ }
+
+ return link;
+} /* fdomain_attach */
+
+/*====================================================================*/
+
+static void fdomain_detach(dev_link_t *link)
+{
+ dev_link_t **linkp;
+
+ DEBUG(0, "fdomain_detach(0x%p)\n", link);
+
+ /* Locate device structure */
+ for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
+ if (*linkp == link) break;
+ if (*linkp == NULL)
+ return;
+
+ if (link->state & DEV_CONFIG)
+ fdomain_release(link);
+
+ if (link->handle)
+ pcmcia_deregister_client(link->handle);
+
+ /* Unlink device structure, free bits */
+ *linkp = link->next;
+ kfree(link->priv);
+
+} /* fdomain_detach */
+
+/*====================================================================*/
+
+#define CS_CHECK(fn, ret) \
+do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0)
+
+static void fdomain_config(dev_link_t *link)
+{
+ client_handle_t handle = link->handle;
+ scsi_info_t *info = link->priv;
+ tuple_t tuple;
+ cisparse_t parse;
+ int i, last_ret, last_fn;
+ u_char tuple_data[64];
+ char str[16];
+ struct Scsi_Host *host;
+
+ DEBUG(0, "fdomain_config(0x%p)\n", link);
+
+ tuple.DesiredTuple = CISTPL_CONFIG;
+ tuple.TupleData = tuple_data;
+ tuple.TupleDataMax = 64;
+ tuple.TupleOffset = 0;
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+ CS_CHECK(GetTupleData, pcmcia_get_tuple_data(handle, &tuple));
+ CS_CHECK(ParseTuple, pcmcia_parse_tuple(handle, &tuple, &parse));
+ link->conf.ConfigBase = parse.config.base;
+
+ /* Configure card */
+ link->state |= DEV_CONFIG;
+
+ tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
+ CS_CHECK(GetFirstTuple, pcmcia_get_first_tuple(handle, &tuple));
+ while (1) {
+ if (pcmcia_get_tuple_data(handle, &tuple) != 0 ||
+ pcmcia_parse_tuple(handle, &tuple, &parse) != 0)
+ goto next_entry;
+ link->conf.ConfigIndex = parse.cftable_entry.index;
+ link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
+ i = pcmcia_request_io(handle, &link->io);
+ if (i == CS_SUCCESS) break;
+ next_entry:
+ CS_CHECK(GetNextTuple, pcmcia_get_next_tuple(handle, &tuple));
+ }
+
+ CS_CHECK(RequestIRQ, pcmcia_request_irq(handle, &link->irq));
+ CS_CHECK(RequestConfiguration, pcmcia_request_configuration(handle, &link->conf));
+
+ /* A bad hack... */
+ release_region(link->io.BasePort1, link->io.NumPorts1);
+
+ /* Set configuration options for the fdomain driver */
+ sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ);
+ fdomain_setup(str);
+
+ host = __fdomain_16x0_detect(&fdomain_driver_template);
+ if (!host) {
+ printk(KERN_INFO "fdomain_cs: no SCSI devices found\n");
+ goto cs_failed;
+ }
+
+ scsi_add_host(host, NULL); /* XXX handle failure */
+ scsi_scan_host(host);
+
+ sprintf(info->node.dev_name, "scsi%d", host->host_no);
+ link->dev = &info->node;
+ info->host = host;
+
+ link->state &= ~DEV_CONFIG_PENDING;
+ return;
+
+cs_failed:
+ cs_error(link->handle, last_fn, last_ret);
+ fdomain_release(link);
+ return;
+
+} /* fdomain_config */
+
+/*====================================================================*/
+
+static void fdomain_release(dev_link_t *link)
+{
+ scsi_info_t *info = link->priv;
+
+ DEBUG(0, "fdomain_release(0x%p)\n", link);
+
+ scsi_remove_host(info->host);
+ link->dev = NULL;
+
+ pcmcia_release_configuration(link->handle);
+ pcmcia_release_io(link->handle, &link->io);
+ pcmcia_release_irq(link->handle, &link->irq);
+
+ scsi_unregister(info->host);
+
+ link->state &= ~DEV_CONFIG;
+}
+
+/*====================================================================*/
+
+static int fdomain_event(event_t event, int priority,
+ event_callback_args_t *args)
+{
+ dev_link_t *link = args->client_data;
+
+ DEBUG(1, "fdomain_event(0x%06x)\n", event);
+
+ switch (event) {
+ case CS_EVENT_CARD_REMOVAL:
+ link->state &= ~DEV_PRESENT;
+ if (link->state & DEV_CONFIG)
+ fdomain_release(link);
+ break;
+ case CS_EVENT_CARD_INSERTION:
+ link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
+ fdomain_config(link);
+ break;
+ case CS_EVENT_PM_SUSPEND:
+ link->state |= DEV_SUSPEND;
+ /* Fall through... */
+ case CS_EVENT_RESET_PHYSICAL:
+ if (link->state & DEV_CONFIG)
+ pcmcia_release_configuration(link->handle);
+ break;
+ case CS_EVENT_PM_RESUME:
+ link->state &= ~DEV_SUSPEND;
+ /* Fall through... */
+ case CS_EVENT_CARD_RESET:
+ if (link->state & DEV_CONFIG) {
+ pcmcia_request_configuration(link->handle, &link->conf);
+ fdomain_16x0_bus_reset(NULL);
+ }
+ break;
+ }
+ return 0;
+} /* fdomain_event */
+
+static struct pcmcia_driver fdomain_cs_driver = {
+ .owner = THIS_MODULE,
+ .drv = {
+ .name = "fdomain_cs",
+ },
+ .attach = fdomain_attach,
+ .detach = fdomain_detach,
+};
+
+static int __init init_fdomain_cs(void)
+{
+ return pcmcia_register_driver(&fdomain_cs_driver);
+}
+
+static void __exit exit_fdomain_cs(void)
+{
+ pcmcia_unregister_driver(&fdomain_cs_driver);
+ BUG_ON(dev_list != NULL);
+}
+
+module_init(init_fdomain_cs);
+module_exit(exit_fdomain_cs);
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