From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- drivers/scsi/dmx3191d.c | 160 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 160 insertions(+) create mode 100644 drivers/scsi/dmx3191d.c (limited to 'drivers/scsi/dmx3191d.c') diff --git a/drivers/scsi/dmx3191d.c b/drivers/scsi/dmx3191d.c new file mode 100644 index 000000000..003c3d726 --- /dev/null +++ b/drivers/scsi/dmx3191d.c @@ -0,0 +1,160 @@ +/* + dmx3191d.c - driver for the Domex DMX3191D SCSI card. + Copyright (C) 2000 by Massimo Piccioni + Portions Copyright (C) 2004 by Christoph Hellwig + + Based on the generic NCR5380 driver by Drew Eckhardt et al. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +*/ + +#include +#include +#include +#include +#include +#include +#include + +#include + +/* + * Definitions for the generic 5380 driver. + */ + +#define NCR5380_read(reg) inb(hostdata->base + (reg)) +#define NCR5380_write(reg, value) outb(value, hostdata->base + (reg)) + +#define NCR5380_dma_xfer_len NCR5380_dma_xfer_none +#define NCR5380_dma_recv_setup NCR5380_dma_setup_none +#define NCR5380_dma_send_setup NCR5380_dma_setup_none +#define NCR5380_dma_residual NCR5380_dma_residual_none + +#define NCR5380_implementation_fields /* none */ + +#include "NCR5380.h" +#include "NCR5380.c" + +#define DMX3191D_DRIVER_NAME "dmx3191d" +#define DMX3191D_REGION_LEN 8 + + +static struct scsi_host_template dmx3191d_driver_template = { + .module = THIS_MODULE, + .proc_name = DMX3191D_DRIVER_NAME, + .name = "Domex DMX3191D", + .info = NCR5380_info, + .queuecommand = NCR5380_queue_command, + .eh_abort_handler = NCR5380_abort, + .eh_host_reset_handler = NCR5380_host_reset, + .can_queue = 32, + .this_id = 7, + .sg_tablesize = SG_ALL, + .cmd_per_lun = 2, + .use_clustering = DISABLE_CLUSTERING, + .cmd_size = NCR5380_CMD_SIZE, +}; + +static int dmx3191d_probe_one(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + struct Scsi_Host *shost; + struct NCR5380_hostdata *hostdata; + unsigned long io; + int error = -ENODEV; + + if (pci_enable_device(pdev)) + goto out; + + io = pci_resource_start(pdev, 0); + if (!request_region(io, DMX3191D_REGION_LEN, DMX3191D_DRIVER_NAME)) { + printk(KERN_ERR "dmx3191: region 0x%lx-0x%lx already reserved\n", + io, io + DMX3191D_REGION_LEN); + goto out_disable_device; + } + + shost = scsi_host_alloc(&dmx3191d_driver_template, + sizeof(struct NCR5380_hostdata)); + if (!shost) + goto out_release_region; + + hostdata = shost_priv(shost); + hostdata->base = io; + + /* This card does not seem to raise an interrupt on pdev->irq. + * Steam-powered SCSI controllers run without an IRQ anyway. + */ + shost->irq = NO_IRQ; + + error = NCR5380_init(shost, 0); + if (error) + goto out_host_put; + + NCR5380_maybe_reset_bus(shost); + + pci_set_drvdata(pdev, shost); + + error = scsi_add_host(shost, &pdev->dev); + if (error) + goto out_exit; + + scsi_scan_host(shost); + return 0; + +out_exit: + NCR5380_exit(shost); +out_host_put: + scsi_host_put(shost); + out_release_region: + release_region(io, DMX3191D_REGION_LEN); + out_disable_device: + pci_disable_device(pdev); + out: + return error; +} + +static void dmx3191d_remove_one(struct pci_dev *pdev) +{ + struct Scsi_Host *shost = pci_get_drvdata(pdev); + struct NCR5380_hostdata *hostdata = shost_priv(shost); + unsigned long io = hostdata->base; + + scsi_remove_host(shost); + + NCR5380_exit(shost); + scsi_host_put(shost); + release_region(io, DMX3191D_REGION_LEN); + pci_disable_device(pdev); +} + +static struct pci_device_id dmx3191d_pci_tbl[] = { + {PCI_VENDOR_ID_DOMEX, PCI_DEVICE_ID_DOMEX_DMX3191D, + PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4}, + { } +}; +MODULE_DEVICE_TABLE(pci, dmx3191d_pci_tbl); + +static struct pci_driver dmx3191d_pci_driver = { + .name = DMX3191D_DRIVER_NAME, + .id_table = dmx3191d_pci_tbl, + .probe = dmx3191d_probe_one, + .remove = dmx3191d_remove_one, +}; + +module_pci_driver(dmx3191d_pci_driver); + +MODULE_AUTHOR("Massimo Piccioni "); +MODULE_DESCRIPTION("Domex DMX3191D SCSI driver"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3