--- /dev/null
+/* -*- 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);
Code Review / kvmfornfv.git / blobdiff