/* * Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux. * Amiga Technologies A4000T SCSI controller. * * Written 1997 by Alan Hourihane <alanh@fairlite.demon.co.uk> * plus modifications of the 53c7xx.c driver to support the Amiga. * * Rewritten to use 53c700.c by Kars de Jong <jongk@linux-m68k.org> */ #include <linux/module.h> #include <linux/platform_device.h> #include <linux/init.h> #include <linux/interrupt.h> #include <asm/amigahw.h> #include <asm/amigaints.h> #include <scsi/scsi_host.h> #include <scsi/scsi_transport_spi.h> #include "53c700.h" MODULE_AUTHOR("Alan Hourihane <alanh@fairlite.demon.co.uk> / Kars de Jong <jongk@linux-m68k.org>"); MODULE_DESCRIPTION("Amiga A4000T NCR53C710 driver"); MODULE_LICENSE("GPL"); static struct scsi_host_template a4000t_scsi_driver_template = { .name = "A4000T builtin SCSI", .proc_name = "A4000t", .this_id = 7, .module = THIS_MODULE, }; static struct platform_device *a4000t_scsi_device; #define A4000T_SCSI_ADDR 0xdd0040 static int __devinit a4000t_probe(struct device *dev) { struct Scsi_Host *host; struct NCR_700_Host_Parameters *hostdata; if (!(MACH_IS_AMIGA && AMIGAHW_PRESENT(A4000_SCSI))) goto out; if (!request_mem_region(A4000T_SCSI_ADDR, 0x1000, "A4000T builtin SCSI")) goto out; hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); if (!hostdata) { printk(KERN_ERR "a4000t-scsi: Failed to allocate host data\n"); goto out_release; } /* Fill in the required pieces of hostdata */ hostdata->base = (void __iomem *)ZTWO_VADDR(A4000T_SCSI_ADDR); hostdata->clock = 50; hostdata->chip710 = 1; hostdata->dmode_extra = DMODE_FC2; hostdata->dcntl_extra = EA_710; /* and register the chip */ host = NCR_700_detect(&a4000t_scsi_driver_template, hostdata, dev); if (!host) { printk(KERN_ERR "a4000t-scsi: No host detected; " "board configuration problem?\n"); goto out_free; } host->this_id = 7; host->base = A4000T_SCSI_ADDR; host->irq = IRQ_AMIGA_PORTS; if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "a4000t-scsi", host)) { printk(KERN_ERR "a4000t-scsi: request_irq failed\n"); goto out_put_host; } dev_set_drvdata(dev, host); scsi_scan_host(host); return 0; out_put_host: scsi_host_put(host); out_free: kfree(hostdata); out_release: release_mem_region(A4000T_SCSI_ADDR, 0x1000); out: return -ENODEV; } static __devexit int a4000t_device_remove(struct device *dev) { struct Scsi_Host *host = dev_get_drvdata(dev); struct NCR_700_Host_Parameters *hostdata = shost_priv(host); scsi_remove_host(host); NCR_700_release(host); kfree(hostdata); free_irq(host->irq, host); release_mem_region(A4000T_SCSI_ADDR, 0x1000); return 0; } static struct device_driver a4000t_scsi_driver = { .name = "a4000t-scsi", .bus = &platform_bus_type, .probe = a4000t_probe, .remove = __devexit_p(a4000t_device_remove), }; static int __init a4000t_scsi_init(void) { int err; err = driver_register(&a4000t_scsi_driver); if (err) return err; a4000t_scsi_device = platform_device_register_simple("a4000t-scsi", -1, NULL, 0); if (IS_ERR(a4000t_scsi_device)) { driver_unregister(&a4000t_scsi_driver); return PTR_ERR(a4000t_scsi_device); } return err; } static void __exit a4000t_scsi_exit(void) { platform_device_unregister(a4000t_scsi_device); driver_unregister(&a4000t_scsi_driver); } module_init(a4000t_scsi_init); module_exit(a4000t_scsi_exit);