Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0-or-later
/*
    dmx3191d.c - driver for the Domex DMX3191D SCSI card.
    Copyright (C) 2000 by Massimo Piccioni <dafastidio@libero.it>
    Portions Copyright (C) 2004 by Christoph Hellwig <hch@lst.de>
 
    Based on the generic NCR5380 driver by Drew Eckhardt et al.
 
*/
 
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/interrupt.h>
#include <asm/io.h>
 
#include <scsi/scsi_host.h>
 
/*
 * 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,
<------>.dma_boundary		= PAGE_SIZE - 1,
<------>.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 <dafastidio@libero.it>");
MODULE_DESCRIPTION("Domex DMX3191D SCSI driver");
MODULE_LICENSE("GPL");