diff options
Diffstat (limited to 'drivers/scsi/pcmcia/aha152x_stub.c')
| -rw-r--r-- | drivers/scsi/pcmcia/aha152x_stub.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/drivers/scsi/pcmcia/aha152x_stub.c b/drivers/scsi/pcmcia/aha152x_stub.c new file mode 100644 index 000000000..6a6621728 --- /dev/null +++ b/drivers/scsi/pcmcia/aha152x_stub.c @@ -0,0 +1,226 @@ +/*====================================================================== + + 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/slab.h> +#include <linux/string.h> +#include <linux/ioport.h> +#include <linux/major.h> +#include <linux/blkdev.h> + +#include <scsi/scsi.h> +#include <scsi/scsi_cmnd.h> +#include <scsi/scsi_device.h> +#include <scsi/scsi_eh.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi_ioctl.h> +#include <scsi/scsi_tcq.h> +#include "aha152x.h" + +#include <pcmcia/cistpl.h> +#include <pcmcia/ds.h> + + +/*====================================================================*/ + +/* 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 { + struct pcmcia_device *p_dev; + struct Scsi_Host *host; +} scsi_info_t; + +static void aha152x_release_cs(struct pcmcia_device *link); +static void aha152x_detach(struct pcmcia_device *p_dev); +static int aha152x_config_cs(struct pcmcia_device *link); + +static int aha152x_probe(struct pcmcia_device *link) +{ + scsi_info_t *info; + + dev_dbg(&link->dev, "aha152x_attach()\n"); + + /* Create new SCSI device */ + info = kzalloc(sizeof(*info), GFP_KERNEL); + if (!info) return -ENOMEM; + info->p_dev = link; + link->priv = info; + + link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; + link->config_regs = PRESENT_OPTION; + + return aha152x_config_cs(link); +} /* aha152x_attach */ + +/*====================================================================*/ + +static void aha152x_detach(struct pcmcia_device *link) +{ + dev_dbg(&link->dev, "aha152x_detach\n"); + + aha152x_release_cs(link); + + /* Unlink device structure, free bits */ + kfree(link->priv); +} /* aha152x_detach */ + +/*====================================================================*/ + +static int aha152x_config_check(struct pcmcia_device *p_dev, void *priv_data) +{ + p_dev->io_lines = 10; + + /* For New Media T&J, look for a SCSI window */ + if ((p_dev->resource[0]->end < 0x20) && + (p_dev->resource[1]->end >= 0x20)) + p_dev->resource[0]->start = p_dev->resource[1]->start; + + if (p_dev->resource[0]->start >= 0xffff) + return -EINVAL; + + p_dev->resource[1]->start = p_dev->resource[1]->end = 0; + p_dev->resource[0]->end = 0x20; + p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; + p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; + + return pcmcia_request_io(p_dev); +} + +static int aha152x_config_cs(struct pcmcia_device *link) +{ + scsi_info_t *info = link->priv; + struct aha152x_setup s; + int ret; + struct Scsi_Host *host; + + dev_dbg(&link->dev, "aha152x_config\n"); + + ret = pcmcia_loop_config(link, aha152x_config_check, NULL); + if (ret) + goto failed; + + if (!link->irq) + goto failed; + + ret = pcmcia_enable_device(link); + if (ret) + goto failed; + + /* Set configuration options for the aha152x driver */ + memset(&s, 0, sizeof(s)); + s.conf = "PCMCIA setup"; + s.io_port = link->resource[0]->start; + s.irq = link->irq; + 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 failed; + } + + info->host = host; + + return 0; + +failed: + aha152x_release_cs(link); + return -ENODEV; +} + +static void aha152x_release_cs(struct pcmcia_device *link) +{ + scsi_info_t *info = link->priv; + + aha152x_release(info->host); + pcmcia_disable_device(link); +} + +static int aha152x_resume(struct pcmcia_device *link) +{ + scsi_info_t *info = link->priv; + + aha152x_host_reset_host(info->host); + + return 0; +} + +static const struct pcmcia_device_id aha152x_ids[] = { + PCMCIA_DEVICE_PROD_ID123("New Media", "SCSI", "Bus Toaster", 0xcdf7e4cc, 0x35f26476, 0xa8851d6e), + PCMCIA_DEVICE_PROD_ID123("NOTEWORTHY", "SCSI", "Bus Toaster", 0xad89c6e8, 0x35f26476, 0xa8851d6e), + PCMCIA_DEVICE_PROD_ID12("Adaptec, Inc.", "APA-1460 SCSI Host Adapter", 0x24ba9738, 0x3a3c3d20), + PCMCIA_DEVICE_PROD_ID12("New Media Corporation", "Multimedia Sound/SCSI", 0x085a850b, 0x80a6535c), + PCMCIA_DEVICE_PROD_ID12("NOTEWORTHY", "NWCOMB02 SCSI/AUDIO COMBO CARD", 0xad89c6e8, 0x5f9a615b), + PCMCIA_DEVICE_NULL, +}; +MODULE_DEVICE_TABLE(pcmcia, aha152x_ids); + +static struct pcmcia_driver aha152x_cs_driver = { + .owner = THIS_MODULE, + .name = "aha152x_cs", + .probe = aha152x_probe, + .remove = aha152x_detach, + .id_table = aha152x_ids, + .resume = aha152x_resume, +}; +module_pcmcia_driver(aha152x_cs_driver); |