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185 lines
4.5 KiB
185 lines
4.5 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Detection routine for the NCR53c710 based Amiga SCSI Controllers for Linux. |
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* Amiga MacroSystemUS WarpEngine SCSI controller. |
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* Amiga Technologies/DKB A4091 SCSI controller. |
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* |
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* Written 1997 by Alan Hourihane <[email protected]> |
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* plus modifications of the 53c7xx.c driver to support the Amiga. |
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* |
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* Rewritten to use 53c700.c by Kars de Jong <[email protected]> |
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*/ |
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#include <linux/module.h> |
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#include <linux/init.h> |
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#include <linux/interrupt.h> |
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#include <linux/zorro.h> |
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#include <linux/slab.h> |
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#include <asm/amigahw.h> |
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#include <asm/amigaints.h> |
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#include <scsi/scsi_host.h> |
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#include <scsi/scsi_transport_spi.h> |
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#include "53c700.h" |
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MODULE_AUTHOR("Alan Hourihane <[email protected]> / Kars de Jong <[email protected]>"); |
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MODULE_DESCRIPTION("Amiga Zorro NCR53C710 driver"); |
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MODULE_LICENSE("GPL"); |
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static struct scsi_host_template zorro7xx_scsi_driver_template = { |
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.proc_name = "zorro7xx", |
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.this_id = 7, |
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.module = THIS_MODULE, |
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}; |
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static struct zorro_driver_data { |
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const char *name; |
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unsigned long offset; |
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int absolute; /* offset is absolute address */ |
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} zorro7xx_driver_data[] = { |
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{ .name = "PowerUP 603e+", .offset = 0xf40000, .absolute = 1 }, |
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{ .name = "WarpEngine 40xx", .offset = 0x40000 }, |
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{ .name = "A4091", .offset = 0x800000 }, |
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{ .name = "GForce 040/060", .offset = 0x40000 }, |
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{ 0 } |
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}; |
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static struct zorro_device_id zorro7xx_zorro_tbl[] = { |
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{ |
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.id = ZORRO_PROD_PHASE5_BLIZZARD_603E_PLUS, |
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.driver_data = (unsigned long)&zorro7xx_driver_data[0], |
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}, |
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{ |
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.id = ZORRO_PROD_MACROSYSTEMS_WARP_ENGINE_40xx, |
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.driver_data = (unsigned long)&zorro7xx_driver_data[1], |
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}, |
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{ |
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.id = ZORRO_PROD_CBM_A4091_1, |
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.driver_data = (unsigned long)&zorro7xx_driver_data[2], |
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}, |
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{ |
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.id = ZORRO_PROD_CBM_A4091_2, |
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.driver_data = (unsigned long)&zorro7xx_driver_data[2], |
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}, |
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{ |
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.id = ZORRO_PROD_GVP_GFORCE_040_060, |
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.driver_data = (unsigned long)&zorro7xx_driver_data[3], |
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}, |
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{ 0 } |
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}; |
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MODULE_DEVICE_TABLE(zorro, zorro7xx_zorro_tbl); |
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static int zorro7xx_init_one(struct zorro_dev *z, |
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const struct zorro_device_id *ent) |
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{ |
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struct Scsi_Host *host; |
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struct NCR_700_Host_Parameters *hostdata; |
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struct zorro_driver_data *zdd; |
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unsigned long board, ioaddr; |
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board = zorro_resource_start(z); |
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zdd = (struct zorro_driver_data *)ent->driver_data; |
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if (zdd->absolute) { |
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ioaddr = zdd->offset; |
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} else { |
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ioaddr = board + zdd->offset; |
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} |
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if (!zorro_request_device(z, zdd->name)) { |
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printk(KERN_ERR "zorro7xx: cannot reserve region 0x%lx, abort\n", |
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board); |
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return -EBUSY; |
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} |
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hostdata = kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL); |
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if (!hostdata) { |
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printk(KERN_ERR "zorro7xx: Failed to allocate host data\n"); |
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goto out_release; |
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} |
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/* Fill in the required pieces of hostdata */ |
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if (ioaddr > 0x01000000) |
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hostdata->base = ioremap(ioaddr, zorro_resource_len(z)); |
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else |
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hostdata->base = ZTWO_VADDR(ioaddr); |
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hostdata->clock = 50; |
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hostdata->chip710 = 1; |
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/* Settings for at least WarpEngine 40xx */ |
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hostdata->ctest7_extra = CTEST7_TT1; |
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zorro7xx_scsi_driver_template.name = zdd->name; |
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/* and register the chip */ |
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host = NCR_700_detect(&zorro7xx_scsi_driver_template, hostdata, |
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&z->dev); |
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if (!host) { |
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printk(KERN_ERR "zorro7xx: No host detected; " |
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"board configuration problem?\n"); |
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goto out_free; |
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} |
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host->this_id = 7; |
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host->base = ioaddr; |
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host->irq = IRQ_AMIGA_PORTS; |
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if (request_irq(host->irq, NCR_700_intr, IRQF_SHARED, "zorro7xx-scsi", |
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host)) { |
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printk(KERN_ERR "zorro7xx: request_irq failed\n"); |
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goto out_put_host; |
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} |
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zorro_set_drvdata(z, host); |
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scsi_scan_host(host); |
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return 0; |
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out_put_host: |
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scsi_host_put(host); |
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out_free: |
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if (ioaddr > 0x01000000) |
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iounmap(hostdata->base); |
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kfree(hostdata); |
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out_release: |
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zorro_release_device(z); |
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return -ENODEV; |
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} |
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static void zorro7xx_remove_one(struct zorro_dev *z) |
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{ |
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struct Scsi_Host *host = zorro_get_drvdata(z); |
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struct NCR_700_Host_Parameters *hostdata = shost_priv(host); |
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scsi_remove_host(host); |
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NCR_700_release(host); |
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kfree(hostdata); |
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free_irq(host->irq, host); |
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zorro_release_device(z); |
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} |
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static struct zorro_driver zorro7xx_driver = { |
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.name = "zorro7xx-scsi", |
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.id_table = zorro7xx_zorro_tbl, |
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.probe = zorro7xx_init_one, |
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.remove = zorro7xx_remove_one, |
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}; |
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static int __init zorro7xx_scsi_init(void) |
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{ |
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return zorro_register_driver(&zorro7xx_driver); |
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} |
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static void __exit zorro7xx_scsi_exit(void) |
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{ |
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zorro_unregister_driver(&zorro7xx_driver); |
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} |
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module_init(zorro7xx_scsi_init); |
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module_exit(zorro7xx_scsi_exit);
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