linux/drivers/scsi/sim710.c

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/*
* sim710.c - Copyright (C) 1999 Richard Hirst <richard@sleepie.demon.co.uk>
*
*----------------------------------------------------------------------------
* 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.
*----------------------------------------------------------------------------
*
* MCA card detection code by Trent McNair. (now deleted)
* Fixes to not explicitly nul bss data from Xavier Bestel.
* Some multiboard fixes from Rolf Eike Beer.
* Auto probing of EISA config space from Trevor Hemsley.
*
* Rewritten to use 53c700.c by James.Bottomley@SteelEye.com
*
*/
#include <linux/module.h>
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 08:04:11 +00:00
#include <linux/slab.h>
#include <linux/blkdev.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/eisa.h>
#include <linux/interrupt.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_transport_spi.h>
#include "53c700.h"
/* Must be enough for EISA */
#define MAX_SLOTS 8
static __u8 __initdata id_array[MAX_SLOTS] = { [0 ... MAX_SLOTS-1] = 7 };
static char *sim710; /* command line passed by insmod */
MODULE_AUTHOR("Richard Hirst");
MODULE_DESCRIPTION("Simple NCR53C710 driver");
MODULE_LICENSE("GPL");
module_param(sim710, charp, 0);
#ifdef MODULE
#define ARG_SEP ' '
#else
#define ARG_SEP ','
#endif
static __init int
param_setup(char *str)
{
char *pos = str, *next;
int slot = -1;
while(pos != NULL && (next = strchr(pos, ':')) != NULL) {
int val = (int)simple_strtoul(++next, NULL, 0);
if(!strncmp(pos, "slot:", 5))
slot = val;
else if(!strncmp(pos, "id:", 3)) {
if(slot == -1) {
printk(KERN_WARNING "sim710: Must specify slot for id parameter\n");
} else if(slot >= MAX_SLOTS) {
printk(KERN_WARNING "sim710: Illegal slot %d for id %d\n", slot, val);
} else {
id_array[slot] = val;
}
}
if((pos = strchr(pos, ARG_SEP)) != NULL)
pos++;
}
return 1;
}
__setup("sim710=", param_setup);
static struct scsi_host_template sim710_driver_template = {
.name = "LSI (Symbios) 710 EISA",
.proc_name = "sim710",
.this_id = 7,
.module = THIS_MODULE,
};
static int sim710_probe_common(struct device *dev, unsigned long base_addr,
int irq, int clock, int differential,
int scsi_id)
{
struct Scsi_Host * host = NULL;
struct NCR_700_Host_Parameters *hostdata =
2007-07-19 08:49:03 +00:00
kzalloc(sizeof(struct NCR_700_Host_Parameters), GFP_KERNEL);
printk(KERN_NOTICE "sim710: %s\n", dev_name(dev));
printk(KERN_NOTICE "sim710: irq = %d, clock = %d, base = 0x%lx, scsi_id = %d\n",
irq, clock, base_addr, scsi_id);
if(hostdata == NULL) {
printk(KERN_ERR "sim710: Failed to allocate host data\n");
goto out;
}
if(request_region(base_addr, 64, "sim710") == NULL) {
printk(KERN_ERR "sim710: Failed to reserve IO region 0x%lx\n",
base_addr);
goto out_free;
}
/* Fill in the three required pieces of hostdata */
hostdata->base = ioport_map(base_addr, 64);
hostdata->differential = differential;
hostdata->clock = clock;
hostdata->chip710 = 1;
hostdata->burst_length = 8;
/* and register the chip */
if((host = NCR_700_detect(&sim710_driver_template, hostdata, dev))
== NULL) {
printk(KERN_ERR "sim710: No host detected; card configuration problem?\n");
goto out_release;
}
host->this_id = scsi_id;
host->base = base_addr;
host->irq = irq;
if (request_irq(irq, NCR_700_intr, IRQF_SHARED, "sim710", host)) {
printk(KERN_ERR "sim710: request_irq failed\n");
goto out_put_host;
}
dev_set_drvdata(dev, host);
scsi_scan_host(host);
return 0;
out_put_host:
scsi_host_put(host);
out_release:
release_region(base_addr, 64);
out_free:
kfree(hostdata);
out:
return -ENODEV;
}
static int sim710_device_remove(struct device *dev)
{
struct Scsi_Host *host = dev_get_drvdata(dev);
struct NCR_700_Host_Parameters *hostdata =
(struct NCR_700_Host_Parameters *)host->hostdata[0];
scsi_remove_host(host);
NCR_700_release(host);
kfree(hostdata);
free_irq(host->irq, host);
release_region(host->base, 64);
return 0;
}
#ifdef CONFIG_EISA
static struct eisa_device_id sim710_eisa_ids[] = {
{ "CPQ4410" },
{ "CPQ4411" },
{ "HWP0C80" },
{ "" }
};
[PATCH] EISA bus MODALIAS attributes support Add modalias attribute support for the almost forgotten now EISA bus and (at least some) EISA-aware modules. The modalias entry looks like (for an 3c509 NIC): eisa:sTCM5093 and the in-module alias like: eisa:sTCM5093* The patch moves struct eisa_device_id declaration from include/linux/eisa.h to include/linux/mod_devicetable.h (so that the former now #includes the latter), adds proper MODULE_DEVICE_TABLE(eisa, ...) statements for all drivers with EISA IDs I found (some drivers already have that DEVICE_TABLE declared), and adds recognision of __mod_eisa_device_table to scripts/mod/file2alias.c so that proper modules.alias will be generated. There's no support for /lib/modules/$kver/modules.eisamap, as it's not used by any existing tools, and because with in-kernel modalias mechanism those maps are obsolete anyway. The rationale for this patch is: a) to make EISA bus to act as other busses with modalias support, to unify driver loading b) to foget about EISA finally - with this patch, kernel (who still supports EISA) will be the only one who knows how to choose the necessary drivers for this bus ;) [akpm@osdl.org: fix the kbuild bit] Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Randy Dunlap <rdunlap@xenotime.net> Acked-the-net-bits-by: Jeff Garzik <jeff@garzik.org> Acked-the-tulip-bit-by: Valerie Henson <val_henson@linux.intel.com> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27 08:50:56 +00:00
MODULE_DEVICE_TABLE(eisa, sim710_eisa_ids);
static __init int
sim710_eisa_probe(struct device *dev)
{
struct eisa_device *edev = to_eisa_device(dev);
unsigned long io_addr = edev->base_addr;
char eisa_cpq_irqs[] = { 11, 14, 15, 10, 9, 0 };
char eisa_hwp_irqs[] = { 3, 4, 5, 7, 12, 10, 11, 0};
char *eisa_irqs;
unsigned char irq_index;
unsigned char irq, differential = 0, scsi_id = 7;
if(strcmp(edev->id.sig, "HWP0C80") == 0) {
__u8 val;
eisa_irqs = eisa_hwp_irqs;
irq_index = (inb(io_addr + 0xc85) & 0x7) - 1;
val = inb(io_addr + 0x4);
scsi_id = ffs(val) - 1;
if(scsi_id > 7 || (val & ~(1<<scsi_id)) != 0) {
printk(KERN_ERR "sim710.c, EISA card %s has incorrect scsi_id, setting to 7\n", dev_name(dev));
scsi_id = 7;
}
} else {
eisa_irqs = eisa_cpq_irqs;
irq_index = inb(io_addr + 0xc88) & 0x07;
}
if(irq_index >= strlen(eisa_irqs)) {
printk("sim710.c: irq nasty\n");
return -ENODEV;
}
irq = eisa_irqs[irq_index];
return sim710_probe_common(dev, io_addr, irq, 50,
differential, scsi_id);
}
static struct eisa_driver sim710_eisa_driver = {
.id_table = sim710_eisa_ids,
.driver = {
.name = "sim710",
.probe = sim710_eisa_probe,
.remove = sim710_device_remove,
},
};
#endif /* CONFIG_EISA */
static int __init sim710_init(void)
{
int err = -ENODEV;
#ifdef MODULE
if (sim710)
param_setup(sim710);
#endif
#ifdef CONFIG_EISA
err = eisa_driver_register(&sim710_eisa_driver);
#endif
/* FIXME: what we'd really like to return here is -ENODEV if
* no devices have actually been found. Instead, the err
* above actually only reports problems with kobject_register,
* so for the moment return success */
return 0;
}
static void __exit sim710_exit(void)
{
#ifdef CONFIG_EISA
eisa_driver_unregister(&sim710_eisa_driver);
#endif
}
module_init(sim710_init);
module_exit(sim710_exit);