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- /* -*- mode: c; c-basic-offset: 8 -*- */
- /* PARISC LASI driver for the 53c700 chip
- *
- * Copyright (C) 2001 by James.Bottomley@HansenPartnership.com
- **-----------------------------------------------------------------------------
- **
- ** This program is free software; you can redistribute it and/or modify
- ** it under the terms of the GNU General Public License as published by
- ** the Free Software Foundation; either version 2 of the License, or
- ** (at your option) any later version.
- **
- ** This program is distributed in the hope that it will be useful,
- ** but WITHOUT ANY WARRANTY; without even the implied warranty of
- ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ** GNU General Public License for more details.
- **
- ** You should have received a copy of the GNU General Public License
- ** along with this program; if not, write to the Free Software
- ** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- **
- **-----------------------------------------------------------------------------
- */
- /*
- * Many thanks to Richard Hirst <rhirst@linuxcare.com> for patiently
- * debugging this driver on the parisc architecture and suggesting
- * many improvements and bug fixes.
- *
- * Thanks also go to Linuxcare Inc. for providing several PARISC
- * machines for me to debug the driver on.
- */
- #include <linux/kernel.h>
- #include <linux/module.h>
- #include <linux/init.h>
- #include <linux/types.h>
- #include <linux/stat.h>
- #include <linux/mm.h>
- #include <linux/blkdev.h>
- #include <linux/ioport.h>
- #include <linux/dma-mapping.h>
- #include <linux/slab.h>
- #include <asm/page.h>
- #include <asm/pgtable.h>
- #include <asm/irq.h>
- #include <asm/hardware.h>
- #include <asm/parisc-device.h>
- #include <asm/delay.h>
- #include <scsi/scsi_host.h>
- #include <scsi/scsi_device.h>
- #include <scsi/scsi_transport.h>
- #include <scsi/scsi_transport_spi.h>
- #include "53c700.h"
- MODULE_AUTHOR("James Bottomley");
- MODULE_DESCRIPTION("lasi700 SCSI Driver");
- MODULE_LICENSE("GPL");
- #define LASI_700_SVERSION 0x00071
- #define LASI_710_SVERSION 0x00082
- #define LASI700_ID_TABLE { \
- .hw_type = HPHW_FIO, \
- .sversion = LASI_700_SVERSION, \
- .hversion = HVERSION_ANY_ID, \
- .hversion_rev = HVERSION_REV_ANY_ID, \
- }
- #define LASI710_ID_TABLE { \
- .hw_type = HPHW_FIO, \
- .sversion = LASI_710_SVERSION, \
- .hversion = HVERSION_ANY_ID, \
- .hversion_rev = HVERSION_REV_ANY_ID, \
- }
- #define LASI700_CLOCK 25
- #define LASI710_CLOCK 40
- #define LASI_SCSI_CORE_OFFSET 0x100
- static struct parisc_device_id lasi700_ids[] = {
- LASI700_ID_TABLE,
- LASI710_ID_TABLE,
- { 0 }
- };
- static struct scsi_host_template lasi700_template = {
- .name = "LASI SCSI 53c700",
- .proc_name = "lasi700",
- .this_id = 7,
- .module = THIS_MODULE,
- };
- MODULE_DEVICE_TABLE(parisc, lasi700_ids);
- static int __init
- lasi700_probe(struct parisc_device *dev)
- {
- unsigned long base = dev->hpa.start + LASI_SCSI_CORE_OFFSET;
- struct NCR_700_Host_Parameters *hostdata;
- struct Scsi_Host *host;
- hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL);
- if (!hostdata) {
- dev_printk(KERN_ERR, &dev->dev, "Failed to allocate host data\n");
- return -ENOMEM;
- }
- hostdata->dev = &dev->dev;
- dma_set_mask(&dev->dev, DMA_BIT_MASK(32));
- hostdata->base = ioremap_nocache(base, 0x100);
- hostdata->differential = 0;
- if (dev->id.sversion == LASI_700_SVERSION) {
- hostdata->clock = LASI700_CLOCK;
- hostdata->force_le_on_be = 1;
- } else {
- hostdata->clock = LASI710_CLOCK;
- hostdata->force_le_on_be = 0;
- hostdata->chip710 = 1;
- hostdata->dmode_extra = DMODE_FC2;
- hostdata->burst_length = 8;
- }
- host = NCR_700_detect(&lasi700_template, hostdata, &dev->dev);
- if (!host)
- goto out_kfree;
- host->this_id = 7;
- host->base = base;
- host->irq = dev->irq;
- if(request_irq(dev->irq, NCR_700_intr, IRQF_SHARED, "lasi700", host)) {
- printk(KERN_ERR "lasi700: request_irq failed!\n");
- goto out_put_host;
- }
- dev_set_drvdata(&dev->dev, host);
- scsi_scan_host(host);
- return 0;
- out_put_host:
- scsi_host_put(host);
- out_kfree:
- iounmap(hostdata->base);
- kfree(hostdata);
- return -ENODEV;
- }
- static int __exit
- lasi700_driver_remove(struct parisc_device *dev)
- {
- struct Scsi_Host *host = dev_get_drvdata(&dev->dev);
- struct NCR_700_Host_Parameters *hostdata =
- (struct NCR_700_Host_Parameters *)host->hostdata[0];
- scsi_remove_host(host);
- NCR_700_release(host);
- free_irq(host->irq, host);
- iounmap(hostdata->base);
- kfree(hostdata);
- return 0;
- }
- static struct parisc_driver lasi700_driver = {
- .name = "lasi_scsi",
- .id_table = lasi700_ids,
- .probe = lasi700_probe,
- .remove = lasi700_driver_remove,
- };
- static int __init
- lasi700_init(void)
- {
- return register_parisc_driver(&lasi700_driver);
- }
- static void __exit
- lasi700_exit(void)
- {
- unregister_parisc_driver(&lasi700_driver);
- }
- module_init(lasi700_init);
- module_exit(lasi700_exit);
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