Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
This commit is contained in:
Linus Torvalds
5
drivers/dio/Makefile
Normal file
5
drivers/dio/Makefile
Normal file
@@ -0,0 +1,5 @@
|
||||
#
|
||||
# Makefile for the linux kernel.
|
||||
#
|
||||
|
||||
obj-y := dio.o dio-driver.o dio-sysfs.o
|
||||
163
drivers/dio/dio-driver.c
Normal file
163
drivers/dio/dio-driver.c
Normal file
@@ -0,0 +1,163 @@
|
||||
/*
|
||||
* DIO Driver Services
|
||||
*
|
||||
* Copyright (C) 2004 Jochen Friedrich
|
||||
*
|
||||
* Loosely based on drivers/pci/pci-driver.c and drivers/zorro/zorro-driver.c
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU General Public
|
||||
* License. See the file COPYING in the main directory of this archive
|
||||
* for more details.
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/dio.h>
|
||||
|
||||
|
||||
/**
|
||||
* dio_match_device - Tell if a DIO device structure has a matching
|
||||
* DIO device id structure
|
||||
* @ids: array of DIO device id structures to search in
|
||||
* @dev: the DIO device structure to match against
|
||||
*
|
||||
* Used by a driver to check whether a DIO device present in the
|
||||
* system is in its list of supported devices. Returns the matching
|
||||
* dio_device_id structure or %NULL if there is no match.
|
||||
*/
|
||||
|
||||
const struct dio_device_id *
|
||||
dio_match_device(const struct dio_device_id *ids,
|
||||
const struct dio_dev *d)
|
||||
{
|
||||
while (ids->id) {
|
||||
if (ids->id == DIO_WILDCARD)
|
||||
return ids;
|
||||
if (DIO_NEEDSSECID(ids->id & 0xff)) {
|
||||
if (ids->id == d->id)
|
||||
return ids;
|
||||
} else {
|
||||
if ((ids->id & 0xff) == (d->id & 0xff))
|
||||
return ids;
|
||||
}
|
||||
ids++;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static int dio_device_probe(struct device *dev)
|
||||
{
|
||||
int error = 0;
|
||||
struct dio_driver *drv = to_dio_driver(dev->driver);
|
||||
struct dio_dev *d = to_dio_dev(dev);
|
||||
|
||||
if (!d->driver && drv->probe) {
|
||||
const struct dio_device_id *id;
|
||||
|
||||
id = dio_match_device(drv->id_table, d);
|
||||
if (id)
|
||||
error = drv->probe(d, id);
|
||||
if (error >= 0) {
|
||||
d->driver = drv;
|
||||
error = 0;
|
||||
}
|
||||
}
|
||||
return error;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* dio_register_driver - register a new DIO driver
|
||||
* @drv: the driver structure to register
|
||||
*
|
||||
* Adds the driver structure to the list of registered drivers
|
||||
* Returns the number of DIO devices which were claimed by the driver
|
||||
* during registration. The driver remains registered even if the
|
||||
* return value is zero.
|
||||
*/
|
||||
|
||||
int dio_register_driver(struct dio_driver *drv)
|
||||
{
|
||||
int count = 0;
|
||||
|
||||
/* initialize common driver fields */
|
||||
drv->driver.name = drv->name;
|
||||
drv->driver.bus = &dio_bus_type;
|
||||
drv->driver.probe = dio_device_probe;
|
||||
|
||||
/* register with core */
|
||||
count = driver_register(&drv->driver);
|
||||
return count ? count : 1;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* dio_unregister_driver - unregister a DIO driver
|
||||
* @drv: the driver structure to unregister
|
||||
*
|
||||
* Deletes the driver structure from the list of registered DIO drivers,
|
||||
* gives it a chance to clean up by calling its remove() function for
|
||||
* each device it was responsible for, and marks those devices as
|
||||
* driverless.
|
||||
*/
|
||||
|
||||
void dio_unregister_driver(struct dio_driver *drv)
|
||||
{
|
||||
driver_unregister(&drv->driver);
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* dio_bus_match - Tell if a DIO device structure has a matching DIO
|
||||
* device id structure
|
||||
* @ids: array of DIO device id structures to search in
|
||||
* @dev: the DIO device structure to match against
|
||||
*
|
||||
* Used by a driver to check whether a DIO device present in the
|
||||
* system is in its list of supported devices. Returns the matching
|
||||
* dio_device_id structure or %NULL if there is no match.
|
||||
*/
|
||||
|
||||
static int dio_bus_match(struct device *dev, struct device_driver *drv)
|
||||
{
|
||||
struct dio_dev *d = to_dio_dev(dev);
|
||||
struct dio_driver *dio_drv = to_dio_driver(drv);
|
||||
const struct dio_device_id *ids = dio_drv->id_table;
|
||||
|
||||
if (!ids)
|
||||
return 0;
|
||||
|
||||
while (ids->id) {
|
||||
if (ids->id == DIO_WILDCARD)
|
||||
return 1;
|
||||
if (DIO_NEEDSSECID(ids->id & 0xff)) {
|
||||
if (ids->id == d->id)
|
||||
return 1;
|
||||
} else {
|
||||
if ((ids->id & 0xff) == (d->id & 0xff))
|
||||
return 1;
|
||||
}
|
||||
ids++;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
struct bus_type dio_bus_type = {
|
||||
.name = "dio",
|
||||
.match = dio_bus_match
|
||||
};
|
||||
|
||||
|
||||
static int __init dio_driver_init(void)
|
||||
{
|
||||
return bus_register(&dio_bus_type);
|
||||
}
|
||||
|
||||
postcore_initcall(dio_driver_init);
|
||||
|
||||
EXPORT_SYMBOL(dio_match_device);
|
||||
EXPORT_SYMBOL(dio_register_driver);
|
||||
EXPORT_SYMBOL(dio_unregister_driver);
|
||||
EXPORT_SYMBOL(dio_dev_driver);
|
||||
EXPORT_SYMBOL(dio_bus_type);
|
||||
77
drivers/dio/dio-sysfs.c
Normal file
77
drivers/dio/dio-sysfs.c
Normal file
@@ -0,0 +1,77 @@
|
||||
/*
|
||||
* File Attributes for DIO Devices
|
||||
*
|
||||
* Copyright (C) 2004 Jochen Friedrich
|
||||
*
|
||||
* Loosely based on drivers/pci/pci-sysfs.c and drivers/zorro/zorro-sysfs.c
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU General Public
|
||||
* License. See the file COPYING in the main directory of this archive
|
||||
* for more details.
|
||||
*/
|
||||
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/dio.h>
|
||||
#include <linux/stat.h>
|
||||
|
||||
/* show configuration fields */
|
||||
|
||||
static ssize_t dio_show_id(struct device *dev, char *buf)
|
||||
{
|
||||
struct dio_dev *d;
|
||||
|
||||
d = to_dio_dev(dev);
|
||||
return sprintf(buf, "0x%02x\n", (d->id & 0xff));
|
||||
}
|
||||
static DEVICE_ATTR(id, S_IRUGO, dio_show_id, NULL);
|
||||
|
||||
static ssize_t dio_show_ipl(struct device *dev, char *buf)
|
||||
{
|
||||
struct dio_dev *d;
|
||||
|
||||
d = to_dio_dev(dev);
|
||||
return sprintf(buf, "0x%02x\n", d->ipl);
|
||||
}
|
||||
static DEVICE_ATTR(ipl, S_IRUGO, dio_show_ipl, NULL);
|
||||
|
||||
static ssize_t dio_show_secid(struct device *dev, char *buf)
|
||||
{
|
||||
struct dio_dev *d;
|
||||
|
||||
d = to_dio_dev(dev);
|
||||
return sprintf(buf, "0x%02x\n", ((d->id >> 8)& 0xff));
|
||||
}
|
||||
static DEVICE_ATTR(secid, S_IRUGO, dio_show_secid, NULL);
|
||||
|
||||
static ssize_t dio_show_name(struct device *dev, char *buf)
|
||||
{
|
||||
struct dio_dev *d;
|
||||
|
||||
d = to_dio_dev(dev);
|
||||
return sprintf(buf, "%s\n", d->name);
|
||||
}
|
||||
static DEVICE_ATTR(name, S_IRUGO, dio_show_name, NULL);
|
||||
|
||||
static ssize_t dio_show_resource(struct device *dev, char *buf)
|
||||
{
|
||||
struct dio_dev *d = to_dio_dev(dev);
|
||||
|
||||
return sprintf(buf, "0x%08lx 0x%08lx 0x%08lx\n",
|
||||
dio_resource_start(d), dio_resource_end(d),
|
||||
dio_resource_flags(d));
|
||||
}
|
||||
static DEVICE_ATTR(resource, S_IRUGO, dio_show_resource, NULL);
|
||||
|
||||
void dio_create_sysfs_dev_files(struct dio_dev *d)
|
||||
{
|
||||
struct device *dev = &d->dev;
|
||||
|
||||
/* current configuration's attributes */
|
||||
device_create_file(dev, &dev_attr_id);
|
||||
device_create_file(dev, &dev_attr_ipl);
|
||||
device_create_file(dev, &dev_attr_secid);
|
||||
device_create_file(dev, &dev_attr_name);
|
||||
device_create_file(dev, &dev_attr_resource);
|
||||
}
|
||||
|
||||
279
drivers/dio/dio.c
Normal file
279
drivers/dio/dio.c
Normal file
@@ -0,0 +1,279 @@
|
||||
/* Code to support devices on the DIO and DIO-II bus
|
||||
* Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
|
||||
* Copyright (C) 2004 Jochen Friedrich <jochen@scram.de>
|
||||
*
|
||||
* This code has basically these routines at the moment:
|
||||
* int dio_find(u_int deviceid)
|
||||
* Search the list of DIO devices and return the select code
|
||||
* of the next unconfigured device found that matches the given device ID.
|
||||
* Note that the deviceid parameter should be the encoded ID.
|
||||
* This means that framebuffers should pass it as
|
||||
* DIO_ENCODE_ID(DIO_ID_FBUFFER,DIO_ID2_TOPCAT)
|
||||
* (or whatever); everybody else just uses DIO_ID_FOOBAR.
|
||||
* unsigned long dio_scodetophysaddr(int scode)
|
||||
* Return the physical address corresponding to the given select code.
|
||||
* int dio_scodetoipl(int scode)
|
||||
* Every DIO card has a fixed interrupt priority level. This function
|
||||
* returns it, whatever it is.
|
||||
* const char *dio_scodetoname(int scode)
|
||||
* Return a character string describing this board [might be "" if
|
||||
* not CONFIG_DIO_CONSTANTS]
|
||||
* void dio_config_board(int scode) mark board as configured in the list
|
||||
* void dio_unconfig_board(int scode) mark board as no longer configured
|
||||
*
|
||||
* This file is based on the way the Amiga port handles Zorro II cards,
|
||||
* although we aren't so complicated...
|
||||
*/
|
||||
#include <linux/module.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/dio.h>
|
||||
#include <linux/slab.h> /* kmalloc() */
|
||||
#include <asm/uaccess.h>
|
||||
#include <asm/io.h> /* readb() */
|
||||
|
||||
struct dio_bus dio_bus = {
|
||||
.resources = {
|
||||
/* DIO range */
|
||||
{ .name = "DIO mem", .start = 0x00600000, .end = 0x007fffff },
|
||||
/* DIO-II range */
|
||||
{ .name = "DIO-II mem", .start = 0x01000000, .end = 0x1fffffff }
|
||||
},
|
||||
.name = "DIO bus"
|
||||
};
|
||||
|
||||
/* not a real config option yet! */
|
||||
#define CONFIG_DIO_CONSTANTS
|
||||
|
||||
#ifdef CONFIG_DIO_CONSTANTS
|
||||
/* We associate each numeric ID with an appropriate descriptive string
|
||||
* using a constant array of these structs.
|
||||
* FIXME: we should be able to arrange to throw away most of the strings
|
||||
* using the initdata stuff. Then we wouldn't need to worry about
|
||||
* carrying them around...
|
||||
* I think we do this by copying them into newly kmalloc()ed memory and
|
||||
* marking the names[] array as .initdata ?
|
||||
*/
|
||||
struct dioname
|
||||
{
|
||||
int id;
|
||||
const char *name;
|
||||
};
|
||||
|
||||
/* useful macro */
|
||||
#define DIONAME(x) { DIO_ID_##x, DIO_DESC_##x }
|
||||
#define DIOFBNAME(x) { DIO_ENCODE_ID( DIO_ID_FBUFFER, DIO_ID2_##x), DIO_DESC2_##x }
|
||||
|
||||
static struct dioname names[] =
|
||||
{
|
||||
DIONAME(DCA0), DIONAME(DCA0REM), DIONAME(DCA1), DIONAME(DCA1REM),
|
||||
DIONAME(DCM), DIONAME(DCMREM),
|
||||
DIONAME(LAN),
|
||||
DIONAME(FHPIB), DIONAME(NHPIB),
|
||||
DIONAME(SCSI0), DIONAME(SCSI1), DIONAME(SCSI2), DIONAME(SCSI3),
|
||||
DIONAME(FBUFFER),
|
||||
DIONAME(PARALLEL), DIONAME(VME), DIONAME(DCL), DIONAME(DCLREM),
|
||||
DIONAME(MISC0), DIONAME(MISC1), DIONAME(MISC2), DIONAME(MISC3),
|
||||
DIONAME(MISC4), DIONAME(MISC5), DIONAME(MISC6), DIONAME(MISC7),
|
||||
DIONAME(MISC8), DIONAME(MISC9), DIONAME(MISC10), DIONAME(MISC11),
|
||||
DIONAME(MISC12), DIONAME(MISC13),
|
||||
DIOFBNAME(GATORBOX), DIOFBNAME(TOPCAT), DIOFBNAME(RENAISSANCE),
|
||||
DIOFBNAME(LRCATSEYE), DIOFBNAME(HRCCATSEYE), DIOFBNAME(HRMCATSEYE),
|
||||
DIOFBNAME(DAVINCI), DIOFBNAME(XXXCATSEYE), DIOFBNAME(HYPERION),
|
||||
DIOFBNAME(XGENESIS), DIOFBNAME(TIGER), DIOFBNAME(YGENESIS)
|
||||
};
|
||||
|
||||
#undef DIONAME
|
||||
#undef DIOFBNAME
|
||||
|
||||
#define NUMNAMES (sizeof(names) / sizeof(struct dioname))
|
||||
|
||||
static const char *unknowndioname
|
||||
= "unknown DIO board -- please email <linux-m68k@lists.linux-m68k.org>!";
|
||||
|
||||
static const char *dio_getname(int id)
|
||||
{
|
||||
/* return pointer to a constant string describing the board with given ID */
|
||||
unsigned int i;
|
||||
for (i = 0; i < NUMNAMES; i++)
|
||||
if (names[i].id == id)
|
||||
return names[i].name;
|
||||
|
||||
return unknowndioname;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
static char dio_no_name[] = { 0 };
|
||||
#define dio_getname(_id) (dio_no_name)
|
||||
|
||||
#endif /* CONFIG_DIO_CONSTANTS */
|
||||
|
||||
int __init dio_find(int deviceid)
|
||||
{
|
||||
/* Called to find a DIO device before the full bus scan has run.
|
||||
* Only used by the console driver.
|
||||
*/
|
||||
int scode, id;
|
||||
u_char prid, secid, i;
|
||||
mm_segment_t fs;
|
||||
|
||||
for (scode = 0; scode < DIO_SCMAX; scode++) {
|
||||
void *va;
|
||||
unsigned long pa;
|
||||
|
||||
if (DIO_SCINHOLE(scode))
|
||||
continue;
|
||||
|
||||
pa = dio_scodetophysaddr(scode);
|
||||
|
||||
if (!pa)
|
||||
continue;
|
||||
|
||||
if (scode < DIOII_SCBASE)
|
||||
va = (void *)(pa + DIO_VIRADDRBASE);
|
||||
else
|
||||
va = ioremap(pa, PAGE_SIZE);
|
||||
|
||||
fs = get_fs();
|
||||
set_fs(KERNEL_DS);
|
||||
|
||||
if (get_user(i, (unsigned char *)va + DIO_IDOFF)) {
|
||||
set_fs(fs);
|
||||
if (scode >= DIOII_SCBASE)
|
||||
iounmap(va);
|
||||
continue; /* no board present at that select code */
|
||||
}
|
||||
|
||||
set_fs(fs);
|
||||
prid = DIO_ID(va);
|
||||
|
||||
if (DIO_NEEDSSECID(prid)) {
|
||||
secid = DIO_SECID(va);
|
||||
id = DIO_ENCODE_ID(prid, secid);
|
||||
} else
|
||||
id = prid;
|
||||
|
||||
if (id == deviceid) {
|
||||
if (scode >= DIOII_SCBASE)
|
||||
iounmap(va);
|
||||
return scode;
|
||||
}
|
||||
}
|
||||
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* This is the function that scans the DIO space and works out what
|
||||
* hardware is actually present.
|
||||
*/
|
||||
static int __init dio_init(void)
|
||||
{
|
||||
int scode;
|
||||
mm_segment_t fs;
|
||||
int i;
|
||||
struct dio_dev *dev;
|
||||
|
||||
if (!MACH_IS_HP300)
|
||||
return 0;
|
||||
|
||||
printk(KERN_INFO "Scanning for DIO devices...\n");
|
||||
|
||||
/* Initialize the DIO bus */
|
||||
INIT_LIST_HEAD(&dio_bus.devices);
|
||||
strcpy(dio_bus.dev.bus_id, "dio");
|
||||
device_register(&dio_bus.dev);
|
||||
|
||||
/* Request all resources */
|
||||
dio_bus.num_resources = (hp300_model == HP_320 ? 1 : 2);
|
||||
for (i = 0; i < dio_bus.num_resources; i++)
|
||||
request_resource(&iomem_resource, &dio_bus.resources[i]);
|
||||
|
||||
/* Register all devices */
|
||||
for (scode = 0; scode < DIO_SCMAX; ++scode)
|
||||
{
|
||||
u_char prid, secid = 0; /* primary, secondary ID bytes */
|
||||
u_char *va;
|
||||
unsigned long pa;
|
||||
|
||||
if (DIO_SCINHOLE(scode))
|
||||
continue;
|
||||
|
||||
pa = dio_scodetophysaddr(scode);
|
||||
|
||||
if (!pa)
|
||||
continue;
|
||||
|
||||
if (scode < DIOII_SCBASE)
|
||||
va = (void *)(pa + DIO_VIRADDRBASE);
|
||||
else
|
||||
va = ioremap(pa, PAGE_SIZE);
|
||||
|
||||
fs = get_fs();
|
||||
set_fs(KERNEL_DS);
|
||||
|
||||
if (get_user(i, (unsigned char *)va + DIO_IDOFF)) {
|
||||
set_fs(fs);
|
||||
if (scode >= DIOII_SCBASE)
|
||||
iounmap(va);
|
||||
continue; /* no board present at that select code */
|
||||
}
|
||||
|
||||
set_fs(fs);
|
||||
|
||||
/* Found a board, allocate it an entry in the list */
|
||||
dev = kmalloc(sizeof(struct dio_dev), GFP_KERNEL);
|
||||
if (!dev)
|
||||
return 0;
|
||||
|
||||
memset(dev, 0, sizeof(struct dio_dev));
|
||||
dev->bus = &dio_bus;
|
||||
dev->dev.parent = &dio_bus.dev;
|
||||
dev->dev.bus = &dio_bus_type;
|
||||
dev->scode = scode;
|
||||
dev->resource.start = pa;
|
||||
dev->resource.end = pa + DIO_SIZE(scode, va);
|
||||
sprintf(dev->dev.bus_id,"%02x", scode);
|
||||
|
||||
/* read the ID byte(s) and encode if necessary. */
|
||||
prid = DIO_ID(va);
|
||||
|
||||
if (DIO_NEEDSSECID(prid)) {
|
||||
secid = DIO_SECID(va);
|
||||
dev->id = DIO_ENCODE_ID(prid, secid);
|
||||
} else
|
||||
dev->id = prid;
|
||||
|
||||
dev->ipl = DIO_IPL(va);
|
||||
strcpy(dev->name,dio_getname(dev->id));
|
||||
printk(KERN_INFO "select code %3d: ipl %d: ID %02X", dev->scode, dev->ipl, prid);
|
||||
if (DIO_NEEDSSECID(prid))
|
||||
printk(":%02X", secid);
|
||||
printk(": %s\n", dev->name);
|
||||
|
||||
if (scode >= DIOII_SCBASE)
|
||||
iounmap(va);
|
||||
device_register(&dev->dev);
|
||||
dio_create_sysfs_dev_files(dev);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
subsys_initcall(dio_init);
|
||||
|
||||
/* Bear in mind that this is called in the very early stages of initialisation
|
||||
* in order to get the address of the serial port for the console...
|
||||
*/
|
||||
unsigned long dio_scodetophysaddr(int scode)
|
||||
{
|
||||
if (scode >= DIOII_SCBASE) {
|
||||
return (DIOII_BASE + (scode - 132) * DIOII_DEVSIZE);
|
||||
} else if (scode > DIO_SCMAX || scode < 0)
|
||||
return 0;
|
||||
else if (DIO_SCINHOLE(scode))
|
||||
return 0;
|
||||
|
||||
return (DIO_BASE + scode * DIO_DEVSIZE);
|
||||
}
|
||||
Reference in New Issue
Block a user