1/* 2 * Detection routine for the NCR53c710 based BVME6000 SCSI Controllers for Linux. 3 * 4 * Based on work by Alan Hourihane and Kars de Jong 5 * 6 * Rewritten to use 53c700.c by Richard Hirst <richard@sleepie.demon.co.uk> 7 */ 8 9#include <linux/module.h> 10#include <linux/blkdev.h> 11#include <linux/device.h> 12#include <linux/platform_device.h> 13#include <linux/init.h> 14#include <linux/interrupt.h> 15#include <linux/slab.h> 16#include <asm/bvme6000hw.h> 17#include <scsi/scsi_host.h> 18#include <scsi/scsi_device.h> 19#include <scsi/scsi_transport.h> 20#include <scsi/scsi_transport_spi.h> 21 22#include "53c700.h" 23 24MODULE_AUTHOR("Richard Hirst <richard@sleepie.demon.co.uk>"); 25MODULE_DESCRIPTION("BVME6000 NCR53C710 driver"); 26MODULE_LICENSE("GPL"); 27 28static struct scsi_host_template bvme6000_scsi_driver_template = { 29 .name = "BVME6000 NCR53c710 SCSI", 30 .proc_name = "BVME6000", 31 .this_id = 7, 32 .module = THIS_MODULE, 33}; 34 35static struct platform_device *bvme6000_scsi_device; 36 37static __devinit int 38bvme6000_probe(struct platform_device *dev) 39{ 40 struct Scsi_Host *host; 41 struct NCR_700_Host_Parameters *hostdata; 42 43 if (!MACH_IS_BVME6000) 44 goto out; 45 46 hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); 47 if (!hostdata) { 48 printk(KERN_ERR "bvme6000-scsi: " 49 "Failed to allocate host data\n"); 50 goto out; 51 } 52 53 /* Fill in the required pieces of hostdata */ 54 hostdata->base = (void __iomem *)BVME_NCR53C710_BASE; 55 hostdata->clock = 40; 56 hostdata->chip710 = 1; 57 hostdata->dmode_extra = DMODE_FC2; 58 hostdata->dcntl_extra = EA_710; 59 hostdata->ctest7_extra = CTEST7_TT1; 60 61 /* and register the chip */ 62 host = NCR_700_detect(&bvme6000_scsi_driver_template, hostdata, 63 &dev->dev); 64 if (!host) { 65 printk(KERN_ERR "bvme6000-scsi: No host detected; " 66 "board configuration problem?\n"); 67 goto out_free; 68 } 69 host->base = BVME_NCR53C710_BASE; 70 host->this_id = 7; 71 host->irq = BVME_IRQ_SCSI; 72 if (request_irq(BVME_IRQ_SCSI, NCR_700_intr, 0, "bvme6000-scsi", 73 host)) { 74 printk(KERN_ERR "bvme6000-scsi: request_irq failed\n"); 75 goto out_put_host; 76 } 77 78 platform_set_drvdata(dev, host); 79 scsi_scan_host(host); 80 81 return 0; 82 83 out_put_host: 84 scsi_host_put(host); 85 out_free: 86 kfree(hostdata); 87 out: 88 return -ENODEV; 89} 90 91static __devexit int 92bvme6000_device_remove(struct platform_device *dev) 93{ 94 struct Scsi_Host *host = platform_get_drvdata(dev); 95 struct NCR_700_Host_Parameters *hostdata = shost_priv(host); 96 97 scsi_remove_host(host); 98 NCR_700_release(host); 99 kfree(hostdata); 100 free_irq(host->irq, host); 101 102 return 0; 103} 104 105static struct platform_driver bvme6000_scsi_driver = { 106 .driver = { 107 .name = "bvme6000-scsi", 108 .owner = THIS_MODULE, 109 }, 110 .probe = bvme6000_probe, 111 .remove = __devexit_p(bvme6000_device_remove), 112}; 113 114static int __init bvme6000_scsi_init(void) 115{ 116 int err; 117 118 err = platform_driver_register(&bvme6000_scsi_driver); 119 if (err) 120 return err; 121 122 bvme6000_scsi_device = platform_device_register_simple("bvme6000-scsi", 123 -1, NULL, 0); 124 if (IS_ERR(bvme6000_scsi_device)) { 125 platform_driver_unregister(&bvme6000_scsi_driver); 126 return PTR_ERR(bvme6000_scsi_device); 127 } 128 129 return 0; 130} 131 132static void __exit bvme6000_scsi_exit(void) 133{ 134 platform_device_unregister(bvme6000_scsi_device); 135 platform_driver_unregister(&bvme6000_scsi_driver); 136} 137 138module_init(bvme6000_scsi_init); 139module_exit(bvme6000_scsi_exit); 140