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-rw-r--r--drivers/pnp/pnpbios/Kconfig4
-rw-r--r--drivers/pnp/pnpbios/Makefile5
-rw-r--r--drivers/pnp/pnpbios/bioscalls.c15
-rw-r--r--drivers/pnp/pnpbios/core.c42
-rw-r--r--drivers/pnp/pnpbios/proc.c208
-rw-r--r--drivers/pnp/pnpbios/rsparser.c13
6 files changed, 165 insertions, 122 deletions
diff --git a/drivers/pnp/pnpbios/Kconfig b/drivers/pnp/pnpbios/Kconfig
index b986d9fa3b9..50c3dd065e0 100644
--- a/drivers/pnp/pnpbios/Kconfig
+++ b/drivers/pnp/pnpbios/Kconfig
@@ -2,8 +2,8 @@
# Plug and Play BIOS configuration
#
config PNPBIOS
- bool "Plug and Play BIOS support (EXPERIMENTAL)"
- depends on ISA && X86 && EXPERIMENTAL
+ bool "Plug and Play BIOS support"
+ depends on ISA && X86
default n
---help---
Linux uses the PNPBIOS as defined in "Plug and Play BIOS
diff --git a/drivers/pnp/pnpbios/Makefile b/drivers/pnp/pnpbios/Makefile
index 3cd3ed76060..240b0ffb83c 100644
--- a/drivers/pnp/pnpbios/Makefile
+++ b/drivers/pnp/pnpbios/Makefile
@@ -1,7 +1,8 @@
#
# Makefile for the kernel PNPBIOS driver.
#
+obj-y := pnp.o
-pnpbios-proc-$(CONFIG_PNPBIOS_PROC_FS) = proc.o
+pnp-y := core.o bioscalls.o rsparser.o
-obj-y := core.o bioscalls.o rsparser.o $(pnpbios-proc-y)
+pnp-$(CONFIG_PNPBIOS_PROC_FS) += proc.o
diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
index fc83783c3a9..438d4c72c7b 100644
--- a/drivers/pnp/pnpbios/bioscalls.c
+++ b/drivers/pnp/pnpbios/bioscalls.c
@@ -11,19 +11,17 @@
#include <linux/pnp.h>
#include <linux/mm.h>
#include <linux/smp.h>
-#include <linux/slab.h>
#include <linux/kmod.h>
#include <linux/completion.h>
#include <linux/spinlock.h>
#include <asm/page.h>
#include <asm/desc.h>
-#include <asm/system.h>
#include <asm/byteorder.h>
#include "pnpbios.h"
-static struct {
+__visible struct {
u16 offset;
u16 segment;
} pnp_bios_callpoint;
@@ -39,10 +37,11 @@ static struct {
* kernel begins at offset 3GB...
*/
-asmlinkage void pnp_bios_callfunc(void);
+asmlinkage __visible void pnp_bios_callfunc(void);
__asm__(".text \n"
__ALIGN_STR "\n"
+ ".globl pnp_bios_callfunc\n"
"pnp_bios_callfunc:\n"
" pushl %edx \n"
" pushl %ecx \n"
@@ -68,9 +67,9 @@ static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092,
* after PnP BIOS oopses.
*/
-u32 pnp_bios_fault_esp;
-u32 pnp_bios_fault_eip;
-u32 pnp_bios_is_utter_crap = 0;
+__visible u32 pnp_bios_fault_esp;
+__visible u32 pnp_bios_fault_eip;
+__visible u32 pnp_bios_is_utter_crap = 0;
static spinlock_t pnp_bios_lock;
@@ -220,7 +219,7 @@ void pnpbios_print_status(const char *module, u16 status)
module);
break;
case PNP_HARDWARE_ERROR:
- printk(KERN_ERR "PnPBIOS: %s: a hardware failure has occured\n",
+ printk(KERN_ERR "PnPBIOS: %s: a hardware failure has occurred\n",
module);
break;
default:
diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
index cfe86853feb..074569e77d2 100644
--- a/drivers/pnp/pnpbios/core.c
+++ b/drivers/pnp/pnpbios/core.c
@@ -65,7 +65,6 @@
#include <asm/page.h>
#include <asm/desc.h>
-#include <asm/system.h>
#include <asm/byteorder.h>
#include "../base.h"
@@ -92,8 +91,6 @@ struct pnp_dev_node_info node_info;
*
*/
-#ifdef CONFIG_HOTPLUG
-
static struct completion unload_sem;
/*
@@ -200,8 +197,6 @@ static int pnp_dock_thread(void *unused)
complete_and_exit(&unload_sem, 0);
}
-#endif /* CONFIG_HOTPLUG */
-
static int pnpbios_get_resources(struct pnp_dev *dev)
{
u8 nodenum = dev->number;
@@ -317,18 +312,19 @@ static int __init insert_device(struct pnp_bios_node *node)
struct list_head *pos;
struct pnp_dev *dev;
char id[8];
+ int error;
/* check if the device is already added */
list_for_each(pos, &pnpbios_protocol.devices) {
dev = list_entry(pos, struct pnp_dev, protocol_list);
if (dev->number == node->handle)
- return -1;
+ return -EEXIST;
}
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;
+ return -ENOMEM;
pnpbios_parse_data_stream(dev, node);
dev->active = pnp_is_active(dev);
@@ -347,7 +343,12 @@ static int __init insert_device(struct pnp_bios_node *node)
if (!dev->active)
pnp_init_resources(dev);
- pnp_add_device(dev);
+ error = pnp_add_device(dev);
+ if (error) {
+ put_device(&dev->dev);
+ return error;
+ }
+
pnpbios_interface_attach_device(node);
return 0;
@@ -518,10 +519,6 @@ static int __init pnpbios_init(void)
{
int ret;
-#if defined(CONFIG_PPC)
- if (check_legacy_ioport(PNPBIOS_BASE))
- return -ENODEV;
-#endif
if (pnpbios_disabled || dmi_check_system(pnpbios_dmi_table) ||
paravirt_enabled()) {
printk(KERN_INFO "PnPBIOS: Disabled\n");
@@ -574,21 +571,16 @@ fs_initcall(pnpbios_init);
static int __init pnpbios_thread_init(void)
{
-#if defined(CONFIG_PPC)
- if (check_legacy_ioport(PNPBIOS_BASE))
- return 0;
-#endif
+ struct task_struct *task;
+
if (pnpbios_disabled)
return 0;
-#ifdef CONFIG_HOTPLUG
- {
- struct task_struct *task;
- init_completion(&unload_sem);
- task = kthread_run(pnp_dock_thread, NULL, "kpnpbiosd");
- if (IS_ERR(task))
- return PTR_ERR(task);
- }
-#endif
+
+ init_completion(&unload_sem);
+ task = kthread_run(pnp_dock_thread, NULL, "kpnpbiosd");
+ if (IS_ERR(task))
+ return PTR_ERR(task);
+
return 0;
}
diff --git a/drivers/pnp/pnpbios/proc.c b/drivers/pnp/pnpbios/proc.c
index b35d921bac6..c212db0fc65 100644
--- a/drivers/pnp/pnpbios/proc.c
+++ b/drivers/pnp/pnpbios/proc.c
@@ -11,7 +11,6 @@
*
* The .../escd file is utilized by the lsescd utility written by
* Gunther Mayer.
- * http://home.t-online.de/home/gunther.mayer/lsescd
*
* The .../legacy_device_resources file is not used yet.
*
@@ -24,6 +23,7 @@
#include <linux/types.h>
#include <linux/proc_fs.h>
#include <linux/pnp.h>
+#include <linux/seq_file.h>
#include <linux/init.h>
#include <asm/uaccess.h>
@@ -33,42 +33,65 @@
static struct proc_dir_entry *proc_pnp = NULL;
static struct proc_dir_entry *proc_pnp_boot = NULL;
-static int proc_read_pnpconfig(char *buf, char **start, off_t pos,
- int count, int *eof, void *data)
+static int pnpconfig_proc_show(struct seq_file *m, void *v)
{
struct pnp_isa_config_struc pnps;
if (pnp_bios_isapnp_config(&pnps))
return -EIO;
- return snprintf(buf, count,
- "structure_revision %d\n"
- "number_of_CSNs %d\n"
- "ISA_read_data_port 0x%x\n",
- pnps.revision, pnps.no_csns, pnps.isa_rd_data_port);
+ seq_printf(m, "structure_revision %d\n"
+ "number_of_CSNs %d\n"
+ "ISA_read_data_port 0x%x\n",
+ pnps.revision, pnps.no_csns, pnps.isa_rd_data_port);
+ return 0;
}
-static int proc_read_escdinfo(char *buf, char **start, off_t pos,
- int count, int *eof, void *data)
+static int pnpconfig_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, pnpconfig_proc_show, NULL);
+}
+
+static const struct file_operations pnpconfig_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = pnpconfig_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int escd_info_proc_show(struct seq_file *m, void *v)
{
struct escd_info_struc escd;
if (pnp_bios_escd_info(&escd))
return -EIO;
- return snprintf(buf, count,
- "min_ESCD_write_size %d\n"
+ seq_printf(m, "min_ESCD_write_size %d\n"
"ESCD_size %d\n"
"NVRAM_base 0x%x\n",
escd.min_escd_write_size,
escd.escd_size, escd.nv_storage_base);
+ return 0;
}
+static int escd_info_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, escd_info_proc_show, NULL);
+}
+
+static const struct file_operations escd_info_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = escd_info_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
#define MAX_SANE_ESCD_SIZE (32*1024)
-static int proc_read_escd(char *buf, char **start, off_t pos,
- int count, int *eof, void *data)
+static int escd_proc_show(struct seq_file *m, void *v)
{
struct escd_info_struc escd;
char *tmpbuf;
- int escd_size, escd_left_to_read, n;
+ int escd_size;
if (pnp_bios_escd_info(&escd))
return -EIO;
@@ -76,7 +99,7 @@ static int proc_read_escd(char *buf, char **start, off_t pos,
/* sanity check */
if (escd.escd_size > MAX_SANE_ESCD_SIZE) {
printk(KERN_ERR
- "PnPBIOS: proc_read_escd: ESCD size reported by BIOS escd_info call is too great\n");
+ "PnPBIOS: %s: ESCD size reported by BIOS escd_info call is too great\n", __func__);
return -EFBIG;
}
@@ -94,79 +117,106 @@ static int proc_read_escd(char *buf, char **start, off_t pos,
/* sanity check */
if (escd_size > MAX_SANE_ESCD_SIZE) {
- printk(KERN_ERR "PnPBIOS: proc_read_escd: ESCD size reported by"
- " BIOS read_escd call is too great\n");
+ printk(KERN_ERR "PnPBIOS: %s: ESCD size reported by"
+ " BIOS read_escd call is too great\n", __func__);
kfree(tmpbuf);
return -EFBIG;
}
- escd_left_to_read = escd_size - pos;
- if (escd_left_to_read < 0)
- escd_left_to_read = 0;
- if (escd_left_to_read == 0)
- *eof = 1;
- n = min(count, escd_left_to_read);
- memcpy(buf, tmpbuf + pos, n);
+ seq_write(m, tmpbuf, escd_size);
kfree(tmpbuf);
- *start = buf;
- return n;
+ return 0;
}
-static int proc_read_legacyres(char *buf, char **start, off_t pos,
- int count, int *eof, void *data)
+static int escd_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, escd_proc_show, NULL);
+}
+
+static const struct file_operations escd_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = escd_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int pnp_legacyres_proc_show(struct seq_file *m, void *v)
{
- /* Assume that the following won't overflow the buffer */
- if (pnp_bios_get_stat_res(buf))
+ void *buf;
+
+ buf = kmalloc(65536, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+ if (pnp_bios_get_stat_res(buf)) {
+ kfree(buf);
return -EIO;
+ }
+
+ seq_write(m, buf, 65536);
+ kfree(buf);
+ return 0;
+}
- return count; // FIXME: Return actual length
+static int pnp_legacyres_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, pnp_legacyres_proc_show, NULL);
}
-static int proc_read_devices(char *buf, char **start, off_t pos,
- int count, int *eof, void *data)
+static const struct file_operations pnp_legacyres_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = pnp_legacyres_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int pnp_devices_proc_show(struct seq_file *m, void *v)
{
struct pnp_bios_node *node;
u8 nodenum;
- char *p = buf;
-
- if (pos >= 0xff)
- return 0;
node = kzalloc(node_info.max_node_size, GFP_KERNEL);
if (!node)
return -ENOMEM;
- for (nodenum = pos; nodenum < 0xff;) {
+ for (nodenum = 0; nodenum < 0xff;) {
u8 thisnodenum = nodenum;
- /* 26 = the number of characters per line sprintf'ed */
- if ((p - buf + 26) > count)
- break;
+
if (pnp_bios_get_dev_node(&nodenum, PNPMODE_DYNAMIC, node))
break;
- p += sprintf(p, "%02x\t%08x\t%02x:%02x:%02x\t%04x\n",
+ seq_printf(m, "%02x\t%08x\t%3phC\t%04x\n",
node->handle, node->eisa_id,
- node->type_code[0], node->type_code[1],
- node->type_code[2], node->flags);
+ node->type_code, node->flags);
if (nodenum <= thisnodenum) {
printk(KERN_ERR
"%s Node number 0x%x is out of sequence following node 0x%x. Aborting.\n",
"PnPBIOS: proc_read_devices:",
(unsigned int)nodenum,
(unsigned int)thisnodenum);
- *eof = 1;
break;
}
}
kfree(node);
- if (nodenum == 0xff)
- *eof = 1;
- *start = (char *)((off_t) nodenum - pos);
- return p - buf;
+ return 0;
+}
+
+static int pnp_devices_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, pnp_devices_proc_show, NULL);
}
-static int proc_read_node(char *buf, char **start, off_t pos,
- int count, int *eof, void *data)
+static const struct file_operations pnp_devices_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = pnp_devices_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int pnpbios_proc_show(struct seq_file *m, void *v)
{
+ void *data = m->private;
struct pnp_bios_node *node;
int boot = (long)data >> 8;
u8 nodenum = (long)data;
@@ -180,14 +230,20 @@ static int proc_read_node(char *buf, char **start, off_t pos,
return -EIO;
}
len = node->size - sizeof(struct pnp_bios_node);
- memcpy(buf, node->data, len);
+ seq_write(m, node->data, len);
kfree(node);
- return len;
+ return 0;
+}
+
+static int pnpbios_proc_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, pnpbios_proc_show, PDE_DATA(inode));
}
-static int proc_write_node(struct file *file, const char __user * buf,
- unsigned long count, void *data)
+static ssize_t pnpbios_proc_write(struct file *file, const char __user *buf,
+ size_t count, loff_t *pos)
{
+ void *data = PDE_DATA(file_inode(file));
struct pnp_bios_node *node;
int boot = (long)data >> 8;
u8 nodenum = (long)data;
@@ -218,34 +274,33 @@ out:
return ret;
}
+static const struct file_operations pnpbios_proc_fops = {
+ .owner = THIS_MODULE,
+ .open = pnpbios_proc_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = pnpbios_proc_write,
+};
+
int pnpbios_interface_attach_device(struct pnp_bios_node *node)
{
char name[3];
- struct proc_dir_entry *ent;
sprintf(name, "%02x", node->handle);
if (!proc_pnp)
return -EIO;
if (!pnpbios_dont_use_current_config) {
- ent = create_proc_entry(name, 0, proc_pnp);
- if (ent) {
- ent->read_proc = proc_read_node;
- ent->write_proc = proc_write_node;
- ent->data = (void *)(long)(node->handle);
- }
+ proc_create_data(name, 0644, proc_pnp, &pnpbios_proc_fops,
+ (void *)(long)(node->handle));
}
if (!proc_pnp_boot)
return -EIO;
- ent = create_proc_entry(name, 0, proc_pnp_boot);
- if (ent) {
- ent->read_proc = proc_read_node;
- ent->write_proc = proc_write_node;
- ent->data = (void *)(long)(node->handle + 0x100);
+ if (proc_create_data(name, 0644, proc_pnp_boot, &pnpbios_proc_fops,
+ (void *)(long)(node->handle + 0x100)))
return 0;
- }
-
return -EIO;
}
@@ -262,14 +317,11 @@ int __init pnpbios_proc_init(void)
proc_pnp_boot = proc_mkdir("boot", proc_pnp);
if (!proc_pnp_boot)
return -EIO;
- create_proc_read_entry("devices", 0, proc_pnp, proc_read_devices, NULL);
- create_proc_read_entry("configuration_info", 0, proc_pnp,
- proc_read_pnpconfig, NULL);
- create_proc_read_entry("escd_info", 0, proc_pnp, proc_read_escdinfo,
- NULL);
- create_proc_read_entry("escd", S_IRUSR, proc_pnp, proc_read_escd, NULL);
- create_proc_read_entry("legacy_device_resources", 0, proc_pnp,
- proc_read_legacyres, NULL);
+ proc_create("devices", 0, proc_pnp, &pnp_devices_proc_fops);
+ proc_create("configuration_info", 0, proc_pnp, &pnpconfig_proc_fops);
+ proc_create("escd_info", 0, proc_pnp, &escd_info_proc_fops);
+ proc_create("escd", S_IRUSR, proc_pnp, &escd_proc_fops);
+ proc_create("legacy_device_resources", 0, proc_pnp, &pnp_legacyres_proc_fops);
return 0;
}
diff --git a/drivers/pnp/pnpbios/rsparser.c b/drivers/pnp/pnpbios/rsparser.c
index a5135ebe5f0..cca2f9f9f3e 100644
--- a/drivers/pnp/pnpbios/rsparser.c
+++ b/drivers/pnp/pnpbios/rsparser.c
@@ -5,7 +5,6 @@
#include <linux/ctype.h>
#include <linux/pnp.h>
#include <linux/string.h>
-#include <linux/slab.h>
#ifdef CONFIG_PCI
#include <linux/pci.h>
@@ -506,7 +505,7 @@ static void pnpbios_encode_mem(struct pnp_dev *dev, unsigned char *p,
if (pnp_resource_enabled(res)) {
base = res->start;
- len = res->end - res->start + 1;
+ len = resource_size(res);
} else {
base = 0;
len = 0;
@@ -530,7 +529,7 @@ static void pnpbios_encode_mem32(struct pnp_dev *dev, unsigned char *p,
if (pnp_resource_enabled(res)) {
base = res->start;
- len = res->end - res->start + 1;
+ len = resource_size(res);
} else {
base = 0;
len = 0;
@@ -560,7 +559,7 @@ static void pnpbios_encode_fixed_mem32(struct pnp_dev *dev, unsigned char *p,
if (pnp_resource_enabled(res)) {
base = res->start;
- len = res->end - res->start + 1;
+ len = resource_size(res);
} else {
base = 0;
len = 0;
@@ -618,7 +617,7 @@ static void pnpbios_encode_port(struct pnp_dev *dev, unsigned char *p,
if (pnp_resource_enabled(res)) {
base = res->start;
- len = res->end - res->start + 1;
+ len = resource_size(res);
} else {
base = 0;
len = 0;
@@ -637,11 +636,11 @@ static void pnpbios_encode_fixed_port(struct pnp_dev *dev, unsigned char *p,
struct resource *res)
{
unsigned long base = res->start;
- unsigned long len = res->end - res->start + 1;
+ unsigned long len = resource_size(res);
if (pnp_resource_enabled(res)) {
base = res->start;
- len = res->end - res->start + 1;
+ len = resource_size(res);
} else {
base = 0;
len = 0;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-15 20:48:03 +0000