/* -*- 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 = __devexit_p(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);