* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
-
+
/* Change Log
*
* Adam Belay - <ambx1@neo.rr.com> - March 16, 2003
#include <linux/init.h>
#include <linux/linkage.h>
#include <linux/kernel.h>
-#include <linux/pnpbios.h>
#include <linux/device.h>
#include <linux/pnp.h>
#include <linux/mm.h>
#include <asm/system.h>
#include <asm/byteorder.h>
+#include "../base.h"
#include "pnpbios.h"
-
/*
*
* PnP BIOS INTERFACE
*
*/
-static union pnp_bios_install_struct * pnp_bios_install = NULL;
+static union pnp_bios_install_struct *pnp_bios_install = NULL;
int pnp_bios_present(void)
{
/*
* (Much of this belongs in a shared routine somewhere)
*/
-
static int pnp_dock_event(int dock, struct pnp_docking_station_info *info)
{
- char *argv [3], **envp, *buf, *scratch;
+ char *argv[3], **envp, *buf, *scratch;
int i = 0, value;
- if (!current->fs->root) {
- return -EAGAIN;
- }
- if (!(envp = kcalloc(20, sizeof (char *), GFP_KERNEL))) {
+ if (!(envp = kcalloc(20, sizeof(char *), GFP_KERNEL)))
return -ENOMEM;
- }
if (!(buf = kzalloc(256, GFP_KERNEL))) {
- kfree (envp);
+ kfree(envp);
return -ENOMEM;
}
- /* FIXME: if there are actual users of this, it should be integrated into
- * the driver core and use the usual infrastructure like sysfs and uevents */
- argv [0] = "/sbin/pnpbios";
- argv [1] = "dock";
- argv [2] = NULL;
+ /* FIXME: if there are actual users of this, it should be
+ * integrated into the driver core and use the usual infrastructure
+ * like sysfs and uevents
+ */
+ argv[0] = "/sbin/pnpbios";
+ argv[1] = "dock";
+ argv[2] = NULL;
/* minimal command environment */
- envp [i++] = "HOME=/";
- envp [i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
+ envp[i++] = "HOME=/";
+ envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
#ifdef DEBUG
/* hint that policy agent should enter no-stdout debug mode */
- envp [i++] = "DEBUG=kernel";
+ envp[i++] = "DEBUG=kernel";
#endif
/* extensible set of named bus-specific parameters,
* supporting multiple driver selection algorithms.
scratch = buf;
/* action: add, remove */
- envp [i++] = scratch;
- scratch += sprintf (scratch, "ACTION=%s", dock?"add":"remove") + 1;
+ envp[i++] = scratch;
+ scratch += sprintf(scratch, "ACTION=%s", dock ? "add" : "remove") + 1;
/* Report the ident for the dock */
- envp [i++] = scratch;
- scratch += sprintf (scratch, "DOCK=%x/%x/%x",
- info->location_id, info->serial, info->capabilities);
+ envp[i++] = scratch;
+ scratch += sprintf(scratch, "DOCK=%x/%x/%x",
+ info->location_id, info->serial, info->capabilities);
envp[i] = NULL;
-
- value = call_usermodehelper (argv [0], argv, envp, 0);
- kfree (buf);
- kfree (envp);
+
+ value = call_usermodehelper(argv [0], argv, envp, UMH_WAIT_EXEC);
+ kfree(buf);
+ kfree(envp);
return 0;
}
/*
* Poll the PnP docking at regular intervals
*/
-static int pnp_dock_thread(void * unused)
+static int pnp_dock_thread(void *unused)
{
static struct pnp_docking_station_info now;
int docked = -1, d = 0;
- while (!unloading)
- {
+
+ set_freezable();
+ while (!unloading) {
int status;
-
+
/*
* Poll every 2 seconds
*/
status = pnp_bios_dock_station_info(&now);
- switch(status)
- {
+ switch (status) {
/*
* No dock to manage
*/
- case PNP_FUNCTION_NOT_SUPPORTED:
- complete_and_exit(&unload_sem, 0);
- case PNP_SYSTEM_NOT_DOCKED:
- d = 0;
- break;
- case PNP_SUCCESS:
- d = 1;
- break;
- default:
- pnpbios_print_status( "pnp_dock_thread", status );
- continue;
+ case PNP_FUNCTION_NOT_SUPPORTED:
+ complete_and_exit(&unload_sem, 0);
+ case PNP_SYSTEM_NOT_DOCKED:
+ d = 0;
+ break;
+ case PNP_SUCCESS:
+ d = 1;
+ break;
+ default:
+ pnpbios_print_status("pnp_dock_thread", status);
+ continue;
}
- if(d != docked)
- {
- if(pnp_dock_event(d, &now)==0)
- {
+ if (d != docked) {
+ if (pnp_dock_event(d, &now) == 0) {
docked = d;
#if 0
- printk(KERN_INFO "PnPBIOS: Docking station %stached\n", docked?"at":"de");
+ printk(KERN_INFO
+ "PnPBIOS: Docking station %stached\n",
+ docked ? "at" : "de");
#endif
}
}
complete_and_exit(&unload_sem, 0);
}
-#endif /* CONFIG_HOTPLUG */
+#endif /* CONFIG_HOTPLUG */
-static int pnpbios_get_resources(struct pnp_dev * dev, struct pnp_resource_table * res)
+static int pnpbios_get_resources(struct pnp_dev *dev)
{
u8 nodenum = dev->number;
- struct pnp_bios_node * node;
+ struct pnp_bios_node *node;
- /* just in case */
- if(!pnpbios_is_dynamic(dev))
+ if (!pnpbios_is_dynamic(dev))
return -EPERM;
+ pnp_dbg(&dev->dev, "get resources\n");
node = kzalloc(node_info.max_node_size, GFP_KERNEL);
if (!node)
return -1;
- if (pnp_bios_get_dev_node(&nodenum, (char )PNPMODE_DYNAMIC, node)) {
+ if (pnp_bios_get_dev_node(&nodenum, (char)PNPMODE_DYNAMIC, node)) {
kfree(node);
return -ENODEV;
}
- pnpbios_read_resources_from_node(res, node);
+ pnpbios_read_resources_from_node(dev, node);
dev->active = pnp_is_active(dev);
kfree(node);
return 0;
}
-static int pnpbios_set_resources(struct pnp_dev * dev, struct pnp_resource_table * res)
+static int pnpbios_set_resources(struct pnp_dev *dev)
{
u8 nodenum = dev->number;
- struct pnp_bios_node * node;
+ struct pnp_bios_node *node;
int ret;
- /* just in case */
if (!pnpbios_is_dynamic(dev))
return -EPERM;
+ pnp_dbg(&dev->dev, "set resources\n");
node = kzalloc(node_info.max_node_size, GFP_KERNEL);
if (!node)
return -1;
- if (pnp_bios_get_dev_node(&nodenum, (char )PNPMODE_DYNAMIC, node)) {
+ if (pnp_bios_get_dev_node(&nodenum, (char)PNPMODE_DYNAMIC, node)) {
kfree(node);
return -ENODEV;
}
- if(pnpbios_write_resources_to_node(res, node)<0) {
+ if (pnpbios_write_resources_to_node(dev, node) < 0) {
kfree(node);
return -1;
}
return ret;
}
-static void pnpbios_zero_data_stream(struct pnp_bios_node * node)
+static void pnpbios_zero_data_stream(struct pnp_bios_node *node)
{
- unsigned char * p = (char *)node->data;
- unsigned char * end = (char *)(node->data + node->size);
+ unsigned char *p = (char *)node->data;
+ unsigned char *end = (char *)(node->data + node->size);
unsigned int len;
int i;
+
while ((char *)p < (char *)end) {
- if(p[0] & 0x80) { /* large tag */
+ if (p[0] & 0x80) { /* large tag */
len = (p[2] << 8) | p[1];
p += 3;
} else {
- if (((p[0]>>3) & 0x0f) == 0x0f)
+ if (((p[0] >> 3) & 0x0f) == 0x0f)
return;
len = p[0] & 0x07;
p += 1;
p[i] = 0;
p += len;
}
- printk(KERN_ERR "PnPBIOS: Resource structure did not contain an end tag.\n");
+ printk(KERN_ERR
+ "PnPBIOS: Resource structure did not contain an end tag.\n");
}
static int pnpbios_disable_resources(struct pnp_dev *dev)
{
- struct pnp_bios_node * node;
+ struct pnp_bios_node *node;
u8 nodenum = dev->number;
int ret;
- /* just in case */
- if(dev->flags & PNPBIOS_NO_DISABLE || !pnpbios_is_dynamic(dev))
+ if (dev->flags & PNPBIOS_NO_DISABLE || !pnpbios_is_dynamic(dev))
return -EPERM;
node = kzalloc(node_info.max_node_size, GFP_KERNEL);
if (!node)
return -ENOMEM;
- if (pnp_bios_get_dev_node(&nodenum, (char )PNPMODE_DYNAMIC, node)) {
+ if (pnp_bios_get_dev_node(&nodenum, (char)PNPMODE_DYNAMIC, node)) {
kfree(node);
return -ENODEV;
}
/* PnP Layer support */
struct pnp_protocol pnpbios_protocol = {
- .name = "Plug and Play BIOS",
- .get = pnpbios_get_resources,
- .set = pnpbios_set_resources,
+ .name = "Plug and Play BIOS",
+ .get = pnpbios_get_resources,
+ .set = pnpbios_set_resources,
.disable = pnpbios_disable_resources,
};
-static int insert_device(struct pnp_dev *dev, struct pnp_bios_node * node)
+static int __init insert_device(struct pnp_bios_node *node)
{
- struct list_head * pos;
- struct pnp_dev * pnp_dev;
- struct pnp_id *dev_id;
+ struct list_head *pos;
+ struct pnp_dev *dev;
char id[8];
/* check if the device is already added */
- dev->number = node->handle;
- list_for_each (pos, &pnpbios_protocol.devices){
- pnp_dev = list_entry(pos, struct pnp_dev, protocol_list);
- if (dev->number == pnp_dev->number)
+ list_for_each(pos, &pnpbios_protocol.devices) {
+ dev = list_entry(pos, struct pnp_dev, protocol_list);
+ if (dev->number == node->handle)
return -1;
}
- /* set the initial values for the PnP device */
- dev_id = kzalloc(sizeof(struct pnp_id), GFP_KERNEL);
- if (!dev_id)
+ pnp_eisa_id_to_string(node->eisa_id & PNP_EISA_ID_MASK, id);
+ dev = pnp_alloc_dev(&pnpbios_protocol, node->handle, id);
+ if (!dev)
return -1;
- pnpid32_to_pnpid(node->eisa_id,id);
- memcpy(dev_id->id,id,7);
- pnp_add_id(dev_id, dev);
+
pnpbios_parse_data_stream(dev, node);
dev->active = pnp_is_active(dev);
dev->flags = node->flags;
dev->capabilities |= PNP_WRITE;
if (dev->flags & PNPBIOS_REMOVABLE)
dev->capabilities |= PNP_REMOVABLE;
- dev->protocol = &pnpbios_protocol;
/* clear out the damaged flags */
if (!dev->active)
- pnp_init_resource_table(&dev->res);
+ pnp_init_resources(dev);
pnp_add_device(dev);
pnpbios_interface_attach_device(node);
unsigned int nodes_got = 0;
unsigned int devs = 0;
struct pnp_bios_node *node;
- struct pnp_dev *dev;
node = kzalloc(node_info.max_node_size, GFP_KERNEL);
if (!node)
return;
- for(nodenum=0; nodenum<0xff; ) {
+ for (nodenum = 0; nodenum < 0xff;) {
u8 thisnodenum = nodenum;
/* eventually we will want to use PNPMODE_STATIC here but for now
* dynamic will help us catch buggy bioses to add to the blacklist.
*/
if (!pnpbios_dont_use_current_config) {
- if (pnp_bios_get_dev_node(&nodenum, (char )PNPMODE_DYNAMIC, node))
+ if (pnp_bios_get_dev_node
+ (&nodenum, (char)PNPMODE_DYNAMIC, node))
break;
} else {
- if (pnp_bios_get_dev_node(&nodenum, (char )PNPMODE_STATIC, node))
+ if (pnp_bios_get_dev_node
+ (&nodenum, (char)PNPMODE_STATIC, node))
break;
}
nodes_got++;
- dev = kzalloc(sizeof (struct pnp_dev), GFP_KERNEL);
- if (!dev)
- break;
- if(insert_device(dev,node)<0)
- kfree(dev);
- else
+ if (insert_device(node) == 0)
devs++;
if (nodenum <= thisnodenum) {
- printk(KERN_ERR "PnPBIOS: build_devlist: Node number 0x%x is out of sequence following node 0x%x. Aborting.\n", (unsigned int)nodenum, (unsigned int)thisnodenum);
+ printk(KERN_ERR
+ "PnPBIOS: build_devlist: Node number 0x%x is out of sequence following node 0x%x. Aborting.\n",
+ (unsigned int)nodenum,
+ (unsigned int)thisnodenum);
break;
}
}
kfree(node);
- printk(KERN_INFO "PnPBIOS: %i node%s reported by PnP BIOS; %i recorded by driver\n",
- nodes_got, nodes_got != 1 ? "s" : "", devs);
+ printk(KERN_INFO
+ "PnPBIOS: %i node%s reported by PnP BIOS; %i recorded by driver\n",
+ nodes_got, nodes_got != 1 ? "s" : "", devs);
}
/*
*
*/
-static int pnpbios_disabled; /* = 0 */
-int pnpbios_dont_use_current_config; /* = 0 */
+static int pnpbios_disabled;
+int pnpbios_dont_use_current_config;
-#ifndef MODULE
static int __init pnpbios_setup(char *str)
{
int invert;
while ((str != NULL) && (*str != '\0')) {
if (strncmp(str, "off", 3) == 0)
- pnpbios_disabled=1;
+ pnpbios_disabled = 1;
if (strncmp(str, "on", 2) == 0)
- pnpbios_disabled=0;
+ pnpbios_disabled = 0;
invert = (strncmp(str, "no-", 3) == 0);
if (invert)
str += 3;
}
__setup("pnpbios=", pnpbios_setup);
-#endif
/* PnP BIOS signature: "$PnP" */
#define PNP_SIGNATURE (('$' << 0) + ('P' << 8) + ('n' << 16) + ('P' << 24))
printk(KERN_INFO "PnPBIOS: Scanning system for PnP BIOS support...\n");
/*
- * Search the defined area (0xf0000-0xffff0) for a valid PnP BIOS
+ * Search the defined area (0xf0000-0xffff0) for a valid PnP BIOS
* structure and, if one is found, sets up the selectors and
* entry points
*/
- for (check = (union pnp_bios_install_struct *) __va(0xf0000);
- check < (union pnp_bios_install_struct *) __va(0xffff0);
+ for (check = (union pnp_bios_install_struct *)__va(0xf0000);
+ check < (union pnp_bios_install_struct *)__va(0xffff0);
check = (void *)check + 16) {
if (check->fields.signature != PNP_SIGNATURE)
continue;
- printk(KERN_INFO "PnPBIOS: Found PnP BIOS installation structure at 0x%p\n", check);
+ printk(KERN_INFO
+ "PnPBIOS: Found PnP BIOS installation structure at 0x%p\n",
+ check);
length = check->fields.length;
if (!length) {
- printk(KERN_ERR "PnPBIOS: installation structure is invalid, skipping\n");
+ printk(KERN_ERR
+ "PnPBIOS: installation structure is invalid, skipping\n");
continue;
}
for (sum = 0, i = 0; i < length; i++)
sum += check->chars[i];
if (sum) {
- printk(KERN_ERR "PnPBIOS: installation structure is corrupted, skipping\n");
+ printk(KERN_ERR
+ "PnPBIOS: installation structure is corrupted, skipping\n");
continue;
}
if (check->fields.version < 0x10) {
- printk(KERN_WARNING "PnPBIOS: PnP BIOS version %d.%d is not supported\n",
+ printk(KERN_WARNING
+ "PnPBIOS: PnP BIOS version %d.%d is not supported\n",
check->fields.version >> 4,
check->fields.version & 15);
continue;
}
- printk(KERN_INFO "PnPBIOS: PnP BIOS version %d.%d, entry 0x%x:0x%x, dseg 0x%x\n",
- check->fields.version >> 4, check->fields.version & 15,
+ printk(KERN_INFO
+ "PnPBIOS: PnP BIOS version %d.%d, entry 0x%x:0x%x, dseg 0x%x\n",
+ check->fields.version >> 4, check->fields.version & 15,
check->fields.pm16cseg, check->fields.pm16offset,
check->fields.pm16dseg);
pnp_bios_install = check;
return 0;
}
-static int __init exploding_pnp_bios(struct dmi_system_id *d)
+static int __init exploding_pnp_bios(const struct dmi_system_id *d)
{
printk(KERN_WARNING "%s detected. Disabling PnPBIOS\n", d->ident);
return 0;
}
static struct dmi_system_id pnpbios_dmi_table[] __initdata = {
- { /* PnPBIOS GPF on boot */
- .callback = exploding_pnp_bios,
- .ident = "Higraded P14H",
- .matches = {
- DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
- DMI_MATCH(DMI_BIOS_VERSION, "07.00T"),
- DMI_MATCH(DMI_SYS_VENDOR, "Higraded"),
- DMI_MATCH(DMI_PRODUCT_NAME, "P14H"),
- },
- },
- { /* PnPBIOS GPF on boot */
- .callback = exploding_pnp_bios,
- .ident = "ASUS P4P800",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc."),
- DMI_MATCH(DMI_BOARD_NAME, "P4P800"),
- },
- },
- { }
+ { /* PnPBIOS GPF on boot */
+ .callback = exploding_pnp_bios,
+ .ident = "Higraded P14H",
+ .matches = {
+ DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
+ DMI_MATCH(DMI_BIOS_VERSION, "07.00T"),
+ DMI_MATCH(DMI_SYS_VENDOR, "Higraded"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "P14H"),
+ },
+ },
+ { /* PnPBIOS GPF on boot */
+ .callback = exploding_pnp_bios,
+ .ident = "ASUS P4P800",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_BOARD_NAME, "P4P800"),
+ },
+ },
+ {}
};
static int __init pnpbios_init(void)
{
int ret;
-#if defined(CONFIG_PPC_MERGE)
+#if defined(CONFIG_PPC)
if (check_legacy_ioport(PNPBIOS_BASE))
return -ENODEV;
#endif
printk(KERN_INFO "PnPBIOS: Disabled\n");
return -ENODEV;
}
-
#ifdef CONFIG_PNPACPI
if (!acpi_disabled && !pnpacpi_disabled) {
pnpbios_disabled = 1;
printk(KERN_INFO "PnPBIOS: Disabled by ACPI PNP\n");
return -ENODEV;
}
-#endif /* CONFIG_ACPI */
+#endif /* CONFIG_ACPI */
/* scan the system for pnpbios support */
if (!pnpbios_probe_system())
/* read the node info */
ret = pnp_bios_dev_node_info(&node_info);
if (ret) {
- printk(KERN_ERR "PnPBIOS: Unable to get node info. Aborting.\n");
+ printk(KERN_ERR
+ "PnPBIOS: Unable to get node info. Aborting.\n");
return ret;
}
/* register with the pnp layer */
ret = pnp_register_protocol(&pnpbios_protocol);
if (ret) {
- printk(KERN_ERR "PnPBIOS: Unable to register driver. Aborting.\n");
+ printk(KERN_ERR
+ "PnPBIOS: Unable to register driver. Aborting.\n");
return ret;
}
/* scan for pnpbios devices */
build_devlist();
+ pnp_platform_devices = 1;
return 0;
}
-subsys_initcall(pnpbios_init);
+fs_initcall(pnpbios_init);
static int __init pnpbios_thread_init(void)
{
struct task_struct *task;
-#if defined(CONFIG_PPC_MERGE)
+
+#if defined(CONFIG_PPC)
if (check_legacy_ioport(PNPBIOS_BASE))
return 0;
#endif
return 0;
}
-#ifndef MODULE
-
-/* init/main.c calls pnpbios_init early */
-
/* Start the kernel thread later: */
module_init(pnpbios_thread_init);
-#else
-
-/*
- * N.B.: Building pnpbios as a module hasn't been fully implemented
- */
-
-MODULE_LICENSE("GPL");
-
-static int __init pnpbios_init_all(void)
-{
- int r;
-
- r = pnpbios_init();
- if (r)
- return r;
- r = pnpbios_thread_init();
- if (r)
- return r;
- return 0;
-}
-
-static void __exit pnpbios_exit(void)
-{
-#ifdef CONFIG_HOTPLUG
- unloading = 1;
- wait_for_completion(&unload_sem);
-#endif
- pnpbios_proc_exit();
- /* We ought to free resources here */
- return;
-}
-
-module_init(pnpbios_init_all);
-module_exit(pnpbios_exit);
-
-#endif
-
EXPORT_SYMBOL(pnpbios_protocol);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff