diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/scsi/pcmcia/aha152x_stub.c | |
download | talos-obmc-linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz talos-obmc-linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/scsi/pcmcia/aha152x_stub.c')
-rw-r--r-- | drivers/scsi/pcmcia/aha152x_stub.c | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/drivers/scsi/pcmcia/aha152x_stub.c b/drivers/scsi/pcmcia/aha152x_stub.c new file mode 100644 index 000000000000..e60b4c0a8427 --- /dev/null +++ b/drivers/scsi/pcmcia/aha152x_stub.c @@ -0,0 +1,343 @@ +/*====================================================================== + + 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 1.54 2000/06/12 21:27:25 + + 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 "aha152x.h" + +#include <pcmcia/version.h> +#include <pcmcia/cs_types.h> +#include <pcmcia/cs.h> +#include <pcmcia/cistpl.h> +#include <pcmcia/ds.h> + +#ifdef PCMCIA_DEBUG +static int pc_debug = PCMCIA_DEBUG; +module_param(pc_debug, int, 0644); +#define DEBUG(n, args...) if (pc_debug>(n)) printk(KERN_DEBUG args) +static char *version = +"aha152x_cs.c 1.54 2000/06/12 21:27:25 (David Hinds)"; +#else +#define DEBUG(n, args...) +#endif + +/*====================================================================*/ + +/* Parameters that can be set with 'insmod' */ + +/* SCSI bus setup options */ +static int host_id = 7; +static int reconnect = 1; +static int parity = 1; +static int synchronous = 1; +static int reset_delay = 100; +static int ext_trans = 0; + +module_param(host_id, int, 0); +module_param(reconnect, int, 0); +module_param(parity, int, 0); +module_param(synchronous, int, 0); +module_param(reset_delay, int, 0); +module_param(ext_trans, int, 0); + +MODULE_LICENSE("Dual MPL/GPL"); + +/*====================================================================*/ + +typedef struct scsi_info_t { + dev_link_t link; + dev_node_t node; + struct Scsi_Host *host; +} scsi_info_t; + +static void aha152x_release_cs(dev_link_t *link); +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 dev_link_t *dev_list; +static dev_info_t dev_info = "aha152x_cs"; + +static dev_link_t *aha152x_attach(void) +{ + scsi_info_t *info; + client_reg_t client_reg; + dev_link_t *link; + int 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->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_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 = &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 = pcmcia_register_client(&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; + + if (link->state & DEV_CONFIG) + aha152x_release_cs(link); + + if (link->handle) + pcmcia_deregister_client(link->handle); + + /* Unlink device structure, free bits */ + *linkp = link->next; + kfree(link->priv); + +} /* aha152x_detach */ + +/*====================================================================*/ + +#define CS_CHECK(fn, ret) \ +do { last_fn = (fn); if ((last_ret = (ret)) != 0) goto cs_failed; } while (0) + +static void aha152x_config_cs(dev_link_t *link) +{ + client_handle_t handle = link->handle; + scsi_info_t *info = link->priv; + struct aha152x_setup s; + tuple_t tuple; + cisparse_t parse; + int i, last_ret, last_fn; + u_char tuple_data[64]; + 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, 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; + /* 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 = 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)); + + /* Set configuration options for the aha152x driver */ + memset(&s, 0, sizeof(s)); + s.conf = "PCMCIA setup"; + s.io_port = link->io.BasePort1; + s.irq = link->irq.AssignedIRQ; + s.scsiid = host_id; + s.reconnect = reconnect; + s.parity = parity; + s.synchronous = synchronous; + s.delay = reset_delay; + if (ext_trans) + s.ext_trans = ext_trans; + + host = aha152x_probe_one(&s); + if (host == NULL) { + printk(KERN_INFO "aha152x_cs: no SCSI devices found\n"); + goto cs_failed; + } + + 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); + aha152x_release_cs(link); + return; +} + +static void aha152x_release_cs(dev_link_t *link) +{ + scsi_info_t *info = link->priv; + + aha152x_release(info->host); + link->dev = NULL; + + pcmcia_release_configuration(link->handle); + pcmcia_release_io(link->handle, &link->io); + pcmcia_release_irq(link->handle, &link->irq); + + link->state &= ~DEV_CONFIG; +} + +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) + aha152x_release_cs(link); + 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) + 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) { + Scsi_Cmnd tmp; + pcmcia_request_configuration(link->handle, &link->conf); + tmp.device->host = info->host; + aha152x_host_reset(&tmp); + } + break; + } + return 0; +} + +static struct pcmcia_driver aha152x_cs_driver = { + .owner = THIS_MODULE, + .drv = { + .name = "aha152x_cs", + }, + .attach = aha152x_attach, + .detach = aha152x_detach, +}; + +static int __init init_aha152x_cs(void) +{ + return pcmcia_register_driver(&aha152x_cs_driver); +} + +static void __exit exit_aha152x_cs(void) +{ + pcmcia_unregister_driver(&aha152x_cs_driver); + BUG_ON(dev_list != NULL); +} + +module_init(init_aha152x_cs); +module_exit(exit_aha152x_cs); + |