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![Thomas Gleixner](/assets/img/avatar_default.png)
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 441 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
242 lines
5.9 KiB
C
242 lines
5.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* sim710.c - Copyright (C) 1999 Richard Hirst <richard@sleepie.demon.co.uk>
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*
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*----------------------------------------------------------------------------
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*----------------------------------------------------------------------------
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*
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* MCA card detection code by Trent McNair. (now deleted)
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* Fixes to not explicitly nul bss data from Xavier Bestel.
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* Some multiboard fixes from Rolf Eike Beer.
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* Auto probing of EISA config space from Trevor Hemsley.
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*
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* Rewritten to use 53c700.c by James.Bottomley@SteelEye.com
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*/
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/blkdev.h>
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#include <linux/device.h>
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#include <linux/init.h>
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#include <linux/eisa.h>
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#include <linux/interrupt.h>
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#include <scsi/scsi_host.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_transport.h>
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#include <scsi/scsi_transport_spi.h>
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#include "53c700.h"
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/* Must be enough for EISA */
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#define MAX_SLOTS 8
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static __u8 __initdata id_array[MAX_SLOTS] = { [0 ... MAX_SLOTS-1] = 7 };
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static char *sim710; /* command line passed by insmod */
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MODULE_AUTHOR("Richard Hirst");
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MODULE_DESCRIPTION("Simple NCR53C710 driver");
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MODULE_LICENSE("GPL");
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module_param(sim710, charp, 0);
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#ifdef MODULE
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#define ARG_SEP ' '
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#else
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#define ARG_SEP ','
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#endif
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static __init int
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param_setup(char *str)
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{
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char *pos = str, *next;
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int slot = -1;
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while(pos != NULL && (next = strchr(pos, ':')) != NULL) {
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int val = (int)simple_strtoul(++next, NULL, 0);
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if(!strncmp(pos, "slot:", 5))
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slot = val;
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else if(!strncmp(pos, "id:", 3)) {
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if(slot == -1) {
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printk(KERN_WARNING "sim710: Must specify slot for id parameter\n");
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} else if(slot >= MAX_SLOTS) {
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printk(KERN_WARNING "sim710: Illegal slot %d for id %d\n", slot, val);
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} else {
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id_array[slot] = val;
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}
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}
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if((pos = strchr(pos, ARG_SEP)) != NULL)
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pos++;
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}
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return 1;
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}
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__setup("sim710=", param_setup);
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static struct scsi_host_template sim710_driver_template = {
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.name = "LSI (Symbios) 710 EISA",
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.proc_name = "sim710",
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.this_id = 7,
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.module = THIS_MODULE,
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};
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static int sim710_probe_common(struct device *dev, unsigned long base_addr,
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int irq, int clock, int differential,
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int scsi_id)
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{
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struct Scsi_Host * host = NULL;
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struct NCR_700_Host_Parameters *hostdata =
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kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
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printk(KERN_NOTICE "sim710: %s\n", dev_name(dev));
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printk(KERN_NOTICE "sim710: irq = %d, clock = %d, base = 0x%lx, scsi_id = %d\n",
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irq, clock, base_addr, scsi_id);
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if(hostdata == NULL) {
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printk(KERN_ERR "sim710: Failed to allocate host data\n");
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goto out;
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}
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if(request_region(base_addr, 64, "sim710") == NULL) {
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printk(KERN_ERR "sim710: Failed to reserve IO region 0x%lx\n",
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base_addr);
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goto out_free;
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}
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/* Fill in the three required pieces of hostdata */
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hostdata->base = ioport_map(base_addr, 64);
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hostdata->differential = differential;
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hostdata->clock = clock;
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hostdata->chip710 = 1;
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hostdata->burst_length = 8;
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/* and register the chip */
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if((host = NCR_700_detect(&sim710_driver_template, hostdata, dev))
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== NULL) {
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printk(KERN_ERR "sim710: No host detected; card configuration problem?\n");
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goto out_release;
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}
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host->this_id = scsi_id;
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host->base = base_addr;
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host->irq = irq;
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if (request_irq(irq, NCR_700_intr, IRQF_SHARED, "sim710", host)) {
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printk(KERN_ERR "sim710: request_irq failed\n");
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goto out_put_host;
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}
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dev_set_drvdata(dev, 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_release:
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release_region(base_addr, 64);
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out_free:
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kfree(hostdata);
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out:
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return -ENODEV;
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}
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static int sim710_device_remove(struct device *dev)
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{
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struct Scsi_Host *host = dev_get_drvdata(dev);
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struct NCR_700_Host_Parameters *hostdata =
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(struct NCR_700_Host_Parameters *)host->hostdata[0];
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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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release_region(host->base, 64);
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return 0;
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}
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#ifdef CONFIG_EISA
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static struct eisa_device_id sim710_eisa_ids[] = {
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{ "CPQ4410" },
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{ "CPQ4411" },
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{ "HWP0C80" },
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{ "" }
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};
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MODULE_DEVICE_TABLE(eisa, sim710_eisa_ids);
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static int sim710_eisa_probe(struct device *dev)
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{
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struct eisa_device *edev = to_eisa_device(dev);
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unsigned long io_addr = edev->base_addr;
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char eisa_cpq_irqs[] = { 11, 14, 15, 10, 9, 0 };
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char eisa_hwp_irqs[] = { 3, 4, 5, 7, 12, 10, 11, 0};
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char *eisa_irqs;
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unsigned char irq_index;
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unsigned char irq, differential = 0, scsi_id = 7;
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if(strcmp(edev->id.sig, "HWP0C80") == 0) {
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__u8 val;
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eisa_irqs = eisa_hwp_irqs;
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irq_index = (inb(io_addr + 0xc85) & 0x7) - 1;
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val = inb(io_addr + 0x4);
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scsi_id = ffs(val) - 1;
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if(scsi_id > 7 || (val & ~(1<<scsi_id)) != 0) {
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printk(KERN_ERR "sim710.c, EISA card %s has incorrect scsi_id, setting to 7\n", dev_name(dev));
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scsi_id = 7;
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}
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} else {
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eisa_irqs = eisa_cpq_irqs;
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irq_index = inb(io_addr + 0xc88) & 0x07;
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}
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if(irq_index >= strlen(eisa_irqs)) {
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printk("sim710.c: irq nasty\n");
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return -ENODEV;
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}
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irq = eisa_irqs[irq_index];
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return sim710_probe_common(dev, io_addr, irq, 50,
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differential, scsi_id);
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}
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static struct eisa_driver sim710_eisa_driver = {
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.id_table = sim710_eisa_ids,
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.driver = {
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.name = "sim710",
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.probe = sim710_eisa_probe,
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.remove = sim710_device_remove,
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},
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};
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#endif /* CONFIG_EISA */
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static int __init sim710_init(void)
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{
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int err = -ENODEV;
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#ifdef MODULE
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if (sim710)
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param_setup(sim710);
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#endif
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#ifdef CONFIG_EISA
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err = eisa_driver_register(&sim710_eisa_driver);
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#endif
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/* FIXME: what we'd really like to return here is -ENODEV if
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* no devices have actually been found. Instead, the err
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* above actually only reports problems with kobject_register,
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* so for the moment return success */
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return 0;
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}
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static void __exit sim710_exit(void)
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{
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#ifdef CONFIG_EISA
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eisa_driver_unregister(&sim710_eisa_driver);
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#endif
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}
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module_init(sim710_init);
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module_exit(sim710_exit);
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