aha152x_stub.c
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上传日期:2013-02-24
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- /*======================================================================
- A driver for Adaptec AHA152X-compatible PCMCIA SCSI cards.
- This driver supports the Adaptec AHA-1460, the New Media Bus
- Toaster, and the New Media Toast & Jam.
-
- aha152x_cs.c 1.58 2001/10/13 00:08:51
- 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/timer.h>
- #include <linux/ioport.h>
- #include <scsi/scsi.h>
- #include <linux/major.h>
- #include <linux/blk.h>
- #include <../drivers/scsi/scsi.h>
- #include <../drivers/scsi/hosts.h>
- #include <scsi/scsi_ioctl.h>
- #include <../drivers/scsi/aha152x.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("Adaptec AHA152x-compatible PCMCIA SCSI driver");
- MODULE_LICENSE("Dual MPL/GPL");
- static int irq_list[4] = { -1 };
- MODULE_PARM(irq_list, "1-4i");
- #define INT_MODULE_PARM(n, v) static int n = v; MODULE_PARM(n, "i")
- INT_MODULE_PARM(irq_mask, 0xdeb8);
- INT_MODULE_PARM(host_id, 7);
- INT_MODULE_PARM(reconnect, 1);
- INT_MODULE_PARM(parity, 1);
- INT_MODULE_PARM(synchronous, 0);
- INT_MODULE_PARM(reset_delay, 100);
- INT_MODULE_PARM(ext_trans, 0);
- #ifdef AHA152X_DEBUG
- INT_MODULE_PARM(debug, 0);
- #endif
- #ifdef PCMCIA_DEBUG
- INT_MODULE_PARM(pc_debug, PCMCIA_DEBUG);
- #define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args)
- static char *version =
- "aha152x_cs.c 1.58 2001/10/13 00:08:51 (David Hinds)";
- #else
- #define DEBUG(n, args...)
- #endif
- /*====================================================================*/
- typedef struct scsi_info_t {
- dev_link_t link;
- struct Scsi_Host *host;
- int ndev;
- dev_node_t node[8];
- } scsi_info_t;
- extern void aha152x_setup(char *str, int *ints);
- static void aha152x_release_cs(u_long arg);
- static int aha152x_event(event_t event, int priority,
- event_callback_args_t *args);
- static dev_link_t *aha152x_attach(void);
- static void aha152x_detach(dev_link_t *);
- static Scsi_Host_Template driver_template = AHA152X;
- static dev_link_t *dev_list = NULL;
- static dev_info_t dev_info = "aha152x_cs";
- /*====================================================================*/
- static void cs_error(client_handle_t handle, int func, int ret)
- {
- error_info_t err = { func, ret };
- CardServices(ReportError, handle, &err);
- }
- /*====================================================================*/
- static dev_link_t *aha152x_attach(void)
- {
- scsi_info_t *info;
- client_reg_t client_reg;
- dev_link_t *link;
- int i, ret;
-
- DEBUG(0, "aha152x_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->release.function = &aha152x_release_cs;
- link->release.data = (u_long)link;
- link->io.NumPorts1 = 0x20;
- link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO;
- link->io.IOAddrLines = 10;
- link->irq.Attributes = IRQ_TYPE_EXCLUSIVE;
- link->irq.IRQInfo1 = IRQ_INFO2_VALID|IRQ_LEVEL_ID;
- if (irq_list[0] == -1)
- link->irq.IRQInfo2 = irq_mask;
- else
- for (i = 0; i < 4; i++)
- link->irq.IRQInfo2 |= 1 << irq_list[i];
- 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.Attributes = INFO_IO_CLIENT | INFO_CARD_SHARE;
- client_reg.event_handler = &aha152x_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 = CardServices(RegisterClient, &link->handle, &client_reg);
- if (ret != 0) {
- cs_error(link->handle, RegisterClient, ret);
- aha152x_detach(link);
- return NULL;
- }
-
- return link;
- } /* aha152x_attach */
- /*====================================================================*/
- static void aha152x_detach(dev_link_t *link)
- {
- dev_link_t **linkp;
- DEBUG(0, "aha152x_detach(0x%p)n", link);
-
- /* Locate device structure */
- for (linkp = &dev_list; *linkp; linkp = &(*linkp)->next)
- if (*linkp == link) break;
- if (*linkp == NULL)
- return;
- del_timer(&link->release);
- if (link->state & DEV_CONFIG) {
- aha152x_release_cs((u_long)link);
- if (link->state & DEV_STALE_CONFIG) {
- link->state |= DEV_STALE_LINK;
- return;
- }
- }
- if (link->handle)
- CardServices(DeregisterClient, link->handle);
-
- /* Unlink device structure, free bits */
- *linkp = link->next;
- kfree(link->priv);
-
- } /* aha152x_detach */
- /*====================================================================*/
- #define CS_CHECK(fn, args...)
- while ((last_ret=CardServices(last_fn=(fn), args))!=0) goto cs_failed
- #define CFG_CHECK(fn, args...)
- if (CardServices(fn, args) != 0) goto next_entry
- static void aha152x_config_cs(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, ints[8];
- u_char tuple_data[64];
- Scsi_Device *dev;
- dev_node_t *node, **tail;
- struct Scsi_Host *host;
-
- DEBUG(0, "aha152x_config(0x%p)n", link);
- tuple.DesiredTuple = CISTPL_CONFIG;
- tuple.TupleData = tuple_data;
- tuple.TupleDataMax = 64;
- tuple.TupleOffset = 0;
- CS_CHECK(GetFirstTuple, handle, &tuple);
- CS_CHECK(GetTupleData, handle, &tuple);
- CS_CHECK(ParseTuple, handle, &tuple, &parse);
- link->conf.ConfigBase = parse.config.base;
- /* Configure card */
- driver_template.module = &__this_module;
- link->state |= DEV_CONFIG;
- tuple.DesiredTuple = CISTPL_CFTABLE_ENTRY;
- CS_CHECK(GetFirstTuple, handle, &tuple);
- while (1) {
- CFG_CHECK(GetTupleData, handle, &tuple);
- CFG_CHECK(ParseTuple, handle, &tuple, &parse);
- /* For New Media T&J, look for a SCSI window */
- if (parse.cftable_entry.io.win[0].len >= 0x20)
- link->io.BasePort1 = parse.cftable_entry.io.win[0].base;
- else if ((parse.cftable_entry.io.nwin > 1) &&
- (parse.cftable_entry.io.win[1].len >= 0x20))
- link->io.BasePort1 = parse.cftable_entry.io.win[1].base;
- if ((parse.cftable_entry.io.nwin > 0) &&
- (link->io.BasePort1 < 0xffff)) {
- link->conf.ConfigIndex = parse.cftable_entry.index;
- i = CardServices(RequestIO, handle, &link->io);
- if (i == CS_SUCCESS) break;
- }
- next_entry:
- CS_CHECK(GetNextTuple, handle, &tuple);
- }
-
- CS_CHECK(RequestIRQ, handle, &link->irq);
- CS_CHECK(RequestConfiguration, handle, &link->conf);
-
- /* A bad hack... */
- release_region(link->io.BasePort1, link->io.NumPorts1);
-
- /* Set configuration options for the aha152x driver */
- ints[1] = link->io.BasePort1;
- ints[2] = link->irq.AssignedIRQ;
- ints[3] = host_id;
- ints[4] = reconnect;
- ints[5] = parity;
- ints[6] = synchronous;
- ints[7] = reset_delay;
- ints[8] = ext_trans;
- #ifdef AHA152X_DEBUG
- ints[9] = debug;
- ints[0] = 9;
- #else
- ints[0] = 8;
- #endif
- aha152x_setup("PCMCIA setup", ints);
-
- scsi_register_module(MODULE_SCSI_HA, &driver_template);
- tail = &link->dev;
- info->ndev = 0;
- for (host = scsi_hostlist; host; host = host->next)
- if (host->hostt == &driver_template)
- for (dev = host->host_queue; dev; dev = dev->next) {
- u_long arg[2], id;
- kernel_scsi_ioctl(dev, SCSI_IOCTL_GET_IDLUN, arg);
- id = (arg[0]&0x0f) + ((arg[0]>>4)&0xf0) +
- ((arg[0]>>8)&0xf00) + ((arg[0]>>12)&0xf000);
- node = &info->node[info->ndev];
- node->minor = 0;
- switch (dev->type) {
- case TYPE_TAPE:
- node->major = SCSI_TAPE_MAJOR;
- sprintf(node->dev_name, "st#%04lx", id);
- break;
- case TYPE_DISK:
- case TYPE_MOD:
- node->major = SCSI_DISK0_MAJOR;
- sprintf(node->dev_name, "sd#%04lx", id);
- break;
- case TYPE_ROM:
- case TYPE_WORM:
- node->major = SCSI_CDROM_MAJOR;
- sprintf(node->dev_name, "sr#%04lx", id);
- break;
- default:
- node->major = SCSI_GENERIC_MAJOR;
- sprintf(node->dev_name, "sg#%04lx", id);
- break;
- }
- *tail = node; tail = &node->next;
- info->ndev++;
- info->host = dev->host;
- }
- *tail = NULL;
- if (info->ndev == 0)
- printk(KERN_INFO "aha152x_cs: no SCSI devices foundn");
-
- link->state &= ~DEV_CONFIG_PENDING;
- return;
-
- cs_failed:
- cs_error(link->handle, last_fn, last_ret);
- aha152x_release_cs((u_long)link);
- return;
-
- } /* aha152x_config_cs */
- /*====================================================================*/
- static void aha152x_release_cs(u_long arg)
- {
- dev_link_t *link = (dev_link_t *)arg;
- DEBUG(0, "aha152x_release_cs(0x%p)n", link);
- if (GET_USE_COUNT(driver_template.module) != 0) {
- DEBUG(1, "aha152x_cs: release postponed, "
- "device still openn");
- link->state |= DEV_STALE_CONFIG;
- return;
- }
- scsi_unregister_module(MODULE_SCSI_HA, &driver_template);
- link->dev = NULL;
-
- CardServices(ReleaseConfiguration, link->handle);
- CardServices(ReleaseIO, link->handle, &link->io);
- CardServices(ReleaseIRQ, link->handle, &link->irq);
-
- link->state &= ~DEV_CONFIG;
- if (link->state & DEV_STALE_LINK)
- aha152x_detach(link);
-
- } /* aha152x_release_cs */
- /*====================================================================*/
- static int aha152x_event(event_t event, int priority,
- event_callback_args_t *args)
- {
- dev_link_t *link = args->client_data;
- scsi_info_t *info = link->priv;
-
- DEBUG(0, "aha152x_event(0x%06x)n", event);
-
- switch (event) {
- case CS_EVENT_CARD_REMOVAL:
- link->state &= ~DEV_PRESENT;
- if (link->state & DEV_CONFIG)
- mod_timer(&link->release, jiffies + HZ/20);
- break;
- case CS_EVENT_CARD_INSERTION:
- link->state |= DEV_PRESENT | DEV_CONFIG_PENDING;
- aha152x_config_cs(link);
- break;
- case CS_EVENT_PM_SUSPEND:
- link->state |= DEV_SUSPEND;
- /* Fall through... */
- case CS_EVENT_RESET_PHYSICAL:
- if (link->state & DEV_CONFIG)
- CardServices(ReleaseConfiguration, link->handle);
- break;
- case CS_EVENT_PM_RESUME:
- link->state &= ~DEV_SUSPEND;
- /* Fall through... */
- case CS_EVENT_CARD_RESET:
- if (link->state & DEV_CONFIG) {
- Scsi_Cmnd tmp;
- CardServices(RequestConfiguration, link->handle, &link->conf);
- tmp.host = info->host;
- aha152x_host_reset(&tmp);
- }
- break;
- }
- return 0;
- } /* aha152x_event */
- /*====================================================================*/
- static int __init init_aha152x_cs(void) {
- servinfo_t serv;
- DEBUG(0, "%sn", version);
- CardServices(GetCardServicesInfo, &serv);
- if (serv.Revision != CS_RELEASE_CODE) {
- printk(KERN_NOTICE "aha152x_cs: Card Services release "
- "does not match!n");
- return -1;
- }
- register_pccard_driver(&dev_info, &aha152x_attach, &aha152x_detach);
- return 0;
- }
- static void __exit exit_aha152x_cs(void) {
- DEBUG(0, "aha152x_cs: unloadingn");
- unregister_pccard_driver(&dev_info);
- while (dev_list != NULL)
- aha152x_detach(dev_list);
- }
- module_init(init_aha152x_cs);
- module_exit(exit_aha152x_cs);
-