Loading...
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 | // SPDX-License-Identifier: GPL-2.0-or-later /* PARISC LASI driver for the 53c700 chip * * Copyright (C) 2001 by James.Bottomley@HansenPartnership.com **----------------------------------------------------------------------------- ** ** **----------------------------------------------------------------------------- */ /* * 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/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 const struct parisc_device_id lasi700_ids[] __initconst = { 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(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 void __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); } static struct parisc_driver lasi700_driver __refdata = { .name = "lasi_scsi", .id_table = lasi700_ids, .probe = lasi700_probe, .remove = __exit_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); |