/* * Detection routine for the NCR53c710 based BVME6000 SCSI Controllers for Linux. * * Based on work by Alan Hourihane and Kars de Jong * * Rewritten to use 53c700.c by Richard Hirst <richard@sleepie.demon.co.uk> */ #include <linux/module.h> #include <linux/blkdev.h> #include <linux/device.h> #include <linux/platform_device.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/slab.h> #include <asm/bvme6000hw.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("Richard Hirst <richard@sleepie.demon.co.uk>"); MODULE_DESCRIPTION("BVME6000 NCR53C710 driver"); MODULE_LICENSE("GPL"); static struct scsi_host_template bvme6000_scsi_driver_template = { .name = "BVME6000 NCR53c710 SCSI", .proc_name = "BVME6000", .this_id = 7, .module = THIS_MODULE, }; static struct platform_device *bvme6000_scsi_device; static __devinit int bvme6000_probe(struct platform_device *dev) { struct Scsi_Host *host; struct NCR_700_Host_Parameters *hostdata; if (!MACH_IS_BVME6000) goto out; hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); if (!hostdata) { printk(KERN_ERR "bvme6000-scsi: " "Failed to allocate host data\n"); goto out; } /* Fill in the required pieces of hostdata */ hostdata->base = (void __iomem *)BVME_NCR53C710_BASE; hostdata->clock = 40; /* XXX - depends on the CPU clock! */ hostdata->chip710 = 1; hostdata->dmode_extra = DMODE_FC2; hostdata->dcntl_extra = EA_710; hostdata->ctest7_extra = CTEST7_TT1; /* and register the chip */ host = NCR_700_detect(&bvme6000_scsi_driver_template, hostdata, &dev->dev); if (!host) { printk(KERN_ERR "bvme6000-scsi: No host detected; " "board configuration problem?\n"); goto out_free; } host->base = BVME_NCR53C710_BASE; host->this_id = 7; host->irq = BVME_IRQ_SCSI; if (request_irq(BVME_IRQ_SCSI, NCR_700_intr, 0, "bvme6000-scsi", host)) { printk(KERN_ERR "bvme6000-scsi: request_irq failed\n"); goto out_put_host; } platform_set_drvdata(dev, host); scsi_scan_host(host); return 0; out_put_host: scsi_host_put(host); out_free: kfree(hostdata); out: return -ENODEV; } static __devexit int bvme6000_device_remove(struct platform_device *dev) { struct Scsi_Host *host = platform_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); return 0; } static struct platform_driver bvme6000_scsi_driver = { .driver = { .name = "bvme6000-scsi", .owner = THIS_MODULE, }, .probe = bvme6000_probe, .remove = __devexit_p(bvme6000_device_remove), }; static int __init bvme6000_scsi_init(void) { int err; err = platform_driver_register(&bvme6000_scsi_driver); if (err) return err; bvme6000_scsi_device = platform_device_register_simple("bvme6000-scsi", -1, NULL, 0); if (IS_ERR(bvme6000_scsi_device)) { platform_driver_unregister(&bvme6000_scsi_driver); return PTR_ERR(bvme6000_scsi_device); } return 0; } static void __exit bvme6000_scsi_exit(void) { platform_device_unregister(bvme6000_scsi_device); platform_driver_unregister(&bvme6000_scsi_driver); } module_init(bvme6000_scsi_init); module_exit(bvme6000_scsi_exit);