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148 lines
3.6 KiB
148 lines
3.6 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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dmx3191d.c - driver for the Domex DMX3191D SCSI card. |
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Copyright (C) 2000 by Massimo Piccioni <[email protected]> |
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Portions Copyright (C) 2004 by Christoph Hellwig <[email protected]> |
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Based on the generic NCR5380 driver by Drew Eckhardt et al. |
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*/ |
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#include <linux/init.h> |
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#include <linux/ioport.h> |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/pci.h> |
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#include <linux/interrupt.h> |
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#include <asm/io.h> |
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#include <scsi/scsi_host.h> |
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/* |
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* Definitions for the generic 5380 driver. |
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*/ |
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#define NCR5380_read(reg) inb(hostdata->base + (reg)) |
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#define NCR5380_write(reg, value) outb(value, hostdata->base + (reg)) |
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#define NCR5380_dma_xfer_len NCR5380_dma_xfer_none |
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#define NCR5380_dma_recv_setup NCR5380_dma_setup_none |
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#define NCR5380_dma_send_setup NCR5380_dma_setup_none |
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#define NCR5380_dma_residual NCR5380_dma_residual_none |
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#define NCR5380_implementation_fields /* none */ |
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#include "NCR5380.h" |
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#include "NCR5380.c" |
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#define DMX3191D_DRIVER_NAME "dmx3191d" |
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#define DMX3191D_REGION_LEN 8 |
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static struct scsi_host_template dmx3191d_driver_template = { |
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.module = THIS_MODULE, |
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.proc_name = DMX3191D_DRIVER_NAME, |
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.name = "Domex DMX3191D", |
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.info = NCR5380_info, |
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.queuecommand = NCR5380_queue_command, |
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.eh_abort_handler = NCR5380_abort, |
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.eh_host_reset_handler = NCR5380_host_reset, |
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.can_queue = 32, |
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.this_id = 7, |
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.sg_tablesize = SG_ALL, |
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.cmd_per_lun = 2, |
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.dma_boundary = PAGE_SIZE - 1, |
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.cmd_size = NCR5380_CMD_SIZE, |
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}; |
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static int dmx3191d_probe_one(struct pci_dev *pdev, |
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const struct pci_device_id *id) |
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{ |
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struct Scsi_Host *shost; |
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struct NCR5380_hostdata *hostdata; |
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unsigned long io; |
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int error = -ENODEV; |
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if (pci_enable_device(pdev)) |
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goto out; |
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io = pci_resource_start(pdev, 0); |
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if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) { |
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printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n", |
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io, io + DMX3191D_REGION_LEN); |
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goto out_disable_device; |
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} |
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shost = scsi_host_alloc(&dmx3191d_driver_template, |
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sizeof(struct NCR5380_hostdata)); |
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if (!shost) |
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goto out_release_region; |
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hostdata = shost_priv(shost); |
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hostdata->base = io; |
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/* This card does not seem to raise an interrupt on pdev->irq. |
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* Steam-powered SCSI controllers run without an IRQ anyway. |
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*/ |
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shost->irq = NO_IRQ; |
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error = NCR5380_init(shost, 0); |
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if (error) |
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goto out_host_put; |
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NCR5380_maybe_reset_bus(shost); |
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pci_set_drvdata(pdev, shost); |
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error = scsi_add_host(shost, &pdev->dev); |
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if (error) |
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goto out_exit; |
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scsi_scan_host(shost); |
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return 0; |
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out_exit: |
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NCR5380_exit(shost); |
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out_host_put: |
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scsi_host_put(shost); |
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out_release_region: |
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release_region(io, DMX3191D_REGION_LEN); |
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out_disable_device: |
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pci_disable_device(pdev); |
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out: |
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return error; |
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} |
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static void dmx3191d_remove_one(struct pci_dev *pdev) |
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{ |
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struct Scsi_Host *shost = pci_get_drvdata(pdev); |
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struct NCR5380_hostdata *hostdata = shost_priv(shost); |
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unsigned long io = hostdata->base; |
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scsi_remove_host(shost); |
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NCR5380_exit(shost); |
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scsi_host_put(shost); |
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release_region(io, DMX3191D_REGION_LEN); |
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pci_disable_device(pdev); |
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} |
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static struct pci_device_id dmx3191d_pci_tbl[] = { |
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{PCI_VENDOR_ID_DOMEX, PCI_DEVICE_ID_DOMEX_DMX3191D, |
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PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4}, |
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{ } |
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}; |
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MODULE_DEVICE_TABLE(pci, dmx3191d_pci_tbl); |
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static struct pci_driver dmx3191d_pci_driver = { |
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.name = DMX3191D_DRIVER_NAME, |
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.id_table = dmx3191d_pci_tbl, |
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.probe = dmx3191d_probe_one, |
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.remove = dmx3191d_remove_one, |
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}; |
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module_pci_driver(dmx3191d_pci_driver); |
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MODULE_AUTHOR("Massimo Piccioni <[email protected]>"); |
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MODULE_DESCRIPTION("Domex DMX3191D SCSI driver"); |
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MODULE_LICENSE("GPL");
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