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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | // SPDX-License-Identifier: GPL-2.0-or-later /* -*- mode: c; c-basic-offset: 8 -*- */ /* SNI RM driver * * Copyright (C) 2001 by James.Bottomley@HansenPartnership.com **----------------------------------------------------------------------------- ** ** **----------------------------------------------------------------------------- */ /* * Based on lasi700.c */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> #include <linux/types.h> #include <linux/slab.h> #include <linux/stat.h> #include <linux/mm.h> #include <linux/blkdev.h> #include <linux/sched.h> #include <linux/ioport.h> #include <linux/dma-mapping.h> #include <linux/platform_device.h> #include <asm/page.h> #include <asm/pgtable.h> #include <asm/irq.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("Thomas Bogendörfer"); MODULE_DESCRIPTION("SNI RM 53c710 SCSI Driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:snirm_53c710"); #define SNIRM710_CLOCK 32 static struct scsi_host_template snirm710_template = { .name = "SNI RM SCSI 53c710", .proc_name = "snirm_53c710", .this_id = 7, .module = THIS_MODULE, }; static int snirm710_probe(struct platform_device *dev) { unsigned long base; struct NCR_700_Host_Parameters *hostdata; struct Scsi_Host *host; struct resource *res; res = platform_get_resource(dev, IORESOURCE_MEM, 0); if (!res) return -ENODEV; base = res->start; hostdata = kzalloc(sizeof(*hostdata), GFP_KERNEL); if (!hostdata) { dev_printk(KERN_ERR, 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; hostdata->clock = SNIRM710_CLOCK; hostdata->force_le_on_be = 1; hostdata->chip710 = 1; hostdata->burst_length = 4; host = NCR_700_detect(&snirm710_template, hostdata, &dev->dev); if (!host) goto out_kfree; host->this_id = 7; host->base = base; host->irq = platform_get_irq(dev, 0); if(request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "snirm710", host)) { printk(KERN_ERR "snirm710: 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 snirm710_driver_remove(struct platform_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 platform_driver snirm710_driver = { .probe = snirm710_probe, .remove = snirm710_driver_remove, .driver = { .name = "snirm_53c710", }, }; static int __init snirm710_init(void) { return platform_driver_register(&snirm710_driver); } static void __exit snirm710_exit(void) { platform_driver_unregister(&snirm710_driver); } module_init(snirm710_init); module_exit(snirm710_exit); |