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path: root/drivers/char/applicom.c
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Diffstat (limited to 'drivers/char/applicom.c')
-rw-r--r--drivers/char/applicom.c124
1 files changed, 44 insertions, 80 deletions
diff --git a/drivers/char/applicom.c b/drivers/char/applicom.c
index 927a5bbe112..14790304b84 100644
--- a/drivers/char/applicom.c
+++ b/drivers/char/applicom.c
@@ -14,7 +14,7 @@
/* et passe en argument a acinit, mais est scrute sur le bus pour s'adapter */
/* au nombre de cartes presentes sur le bus. IOCL code 6 affichait V2.4.3 */
/* F.LAFORSE 28/11/95 creation de fichiers acXX.o avec les differentes */
-/* adresses de base des cartes, IOCTL 6 plus complet */
+/* addresses de base des cartes, IOCTL 6 plus complet */
/* J.PAGET le 19/08/96 copie de la version V2.6 en V2.8.0 sans modification */
/* de code autre que le texte V2.6.1 en V2.8.0 */
/*****************************************************************************/
@@ -23,8 +23,10 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/interrupt.h>
+#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/errno.h>
+#include <linux/mutex.h>
#include <linux/miscdevice.h>
#include <linux/pci.h>
#include <linux/wait.h>
@@ -57,8 +59,8 @@
#define PCI_DEVICE_ID_APPLICOM_PCI2000IBS_CAN 0x0002
#define PCI_DEVICE_ID_APPLICOM_PCI2000PFB 0x0003
#endif
-#define MAX_PCI_DEVICE_NUM 3
+static DEFINE_MUTEX(ac_mutex);
static char *applicom_pci_devnames[] = {
"PCI board",
"PCI2000IBS / PCI2000CAN",
@@ -66,12 +68,9 @@ static char *applicom_pci_devnames[] = {
};
static struct pci_device_id applicom_pci_tbl[] = {
- { PCI_VENDOR_ID_APPLICOM, PCI_DEVICE_ID_APPLICOM_PCIGENERIC,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
- { PCI_VENDOR_ID_APPLICOM, PCI_DEVICE_ID_APPLICOM_PCI2000IBS_CAN,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
- { PCI_VENDOR_ID_APPLICOM, PCI_DEVICE_ID_APPLICOM_PCI2000PFB,
- PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VDEVICE(APPLICOM, PCI_DEVICE_ID_APPLICOM_PCIGENERIC) },
+ { PCI_VDEVICE(APPLICOM, PCI_DEVICE_ID_APPLICOM_PCI2000IBS_CAN) },
+ { PCI_VDEVICE(APPLICOM, PCI_DEVICE_ID_APPLICOM_PCI2000PFB) },
{ 0 }
};
MODULE_DEVICE_TABLE(pci, applicom_pci_tbl);
@@ -79,6 +78,7 @@ MODULE_DEVICE_TABLE(pci, applicom_pci_tbl);
MODULE_AUTHOR("David Woodhouse & Applicom International");
MODULE_DESCRIPTION("Driver for Applicom Profibus card");
MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(AC_MINOR);
MODULE_SUPPORTED_DEVICE("ac");
@@ -108,16 +108,15 @@ static unsigned int DeviceErrorCount; /* number of device error */
static ssize_t ac_read (struct file *, char __user *, size_t, loff_t *);
static ssize_t ac_write (struct file *, const char __user *, size_t, loff_t *);
-static int ac_ioctl(struct inode *, struct file *, unsigned int,
- unsigned long);
-static irqreturn_t ac_interrupt(int, void *, struct pt_regs *);
+static long ac_ioctl(struct file *, unsigned int, unsigned long);
+static irqreturn_t ac_interrupt(int, void *);
-static struct file_operations ac_fops = {
+static const struct file_operations ac_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.read = ac_read,
.write = ac_write,
- .ioctl = ac_ioctl,
+ .unlocked_ioctl = ac_ioctl,
};
static struct miscdevice ac_miscdev = {
@@ -142,7 +141,7 @@ static int ac_register_board(unsigned long physloc, void __iomem *loc,
if (!boardno)
boardno = readb(loc + NUMCARD_OWNER_TO_PC);
- if (!boardno && boardno > MAX_BOARD) {
+ if (!boardno || boardno > MAX_BOARD) {
printk(KERN_WARNING "Board #%d (at 0x%lx) is out of range (1 <= x <= %d).\n",
boardno, physloc, MAX_BOARD);
return 0;
@@ -166,11 +165,7 @@ static int ac_register_board(unsigned long physloc, void __iomem *loc,
return boardno + 1;
}
-#ifdef MODULE
-
-#define applicom_init init_module
-
-void cleanup_module(void)
+static void __exit applicom_exit(void)
{
unsigned int i;
@@ -188,9 +183,7 @@ void cleanup_module(void)
}
}
-#endif /* MODULE */
-
-int __init applicom_init(void)
+static int __init applicom_init(void)
{
int i, numisa = 0;
struct pci_dev *dev = NULL;
@@ -203,28 +196,29 @@ int __init applicom_init(void)
while ( (dev = pci_get_class(PCI_CLASS_OTHERS << 16, dev))) {
- if (dev->vendor != PCI_VENDOR_ID_APPLICOM)
- continue;
-
- if (dev->device > MAX_PCI_DEVICE_NUM || dev->device == 0)
+ if (!pci_match_id(applicom_pci_tbl, dev))
continue;
if (pci_enable_device(dev))
return -EIO;
- RamIO = ioremap(dev->resource[0].start, LEN_RAM_IO);
+ RamIO = ioremap_nocache(pci_resource_start(dev, 0), LEN_RAM_IO);
if (!RamIO) {
- printk(KERN_INFO "ac.o: Failed to ioremap PCI memory space at 0x%lx\n", dev->resource[0].start);
+ printk(KERN_INFO "ac.o: Failed to ioremap PCI memory "
+ "space at 0x%llx\n",
+ (unsigned long long)pci_resource_start(dev, 0));
pci_disable_device(dev);
return -EIO;
}
- printk(KERN_INFO "Applicom %s found at mem 0x%lx, irq %d\n",
- applicom_pci_devnames[dev->device-1], dev->resource[0].start,
+ printk(KERN_INFO "Applicom %s found at mem 0x%llx, irq %d\n",
+ applicom_pci_devnames[dev->device-1],
+ (unsigned long long)pci_resource_start(dev, 0),
dev->irq);
- boardno = ac_register_board(dev->resource[0].start, RamIO,0);
+ boardno = ac_register_board(pci_resource_start(dev, 0),
+ RamIO, 0);
if (!boardno) {
printk(KERN_INFO "ac.o: PCI Applicom device doesn't have correct signature.\n");
iounmap(RamIO);
@@ -232,7 +226,7 @@ int __init applicom_init(void)
continue;
}
- if (request_irq(dev->irq, &ac_interrupt, SA_SHIRQ, "Applicom PCI", &dummy)) {
+ if (request_irq(dev->irq, &ac_interrupt, IRQF_SHARED, "Applicom PCI", &dummy)) {
printk(KERN_INFO "Could not allocate IRQ %d for PCI Applicom device.\n", dev->irq);
iounmap(RamIO);
pci_disable_device(dev);
@@ -263,7 +257,7 @@ int __init applicom_init(void)
/* Now try the specified ISA cards */
for (i = 0; i < MAX_ISA_BOARD; i++) {
- RamIO = ioremap(mem + (LEN_RAM_IO * i), LEN_RAM_IO);
+ RamIO = ioremap_nocache(mem + (LEN_RAM_IO * i), LEN_RAM_IO);
if (!RamIO) {
printk(KERN_INFO "ac.o: Failed to ioremap the ISA card's memory space (slot #%d)\n", i + 1);
@@ -279,7 +273,7 @@ int __init applicom_init(void)
printk(KERN_NOTICE "Applicom ISA card found at mem 0x%lx, irq %d\n", mem + (LEN_RAM_IO*i), irq);
if (!numisa) {
- if (request_irq(irq, &ac_interrupt, SA_SHIRQ, "Applicom ISA", &dummy)) {
+ if (request_irq(irq, &ac_interrupt, IRQF_SHARED, "Applicom ISA", &dummy)) {
printk(KERN_WARNING "Could not allocate IRQ %d for ISA Applicom device.\n", irq);
iounmap(RamIO);
apbs[boardno - 1].RamIO = NULL;
@@ -351,14 +345,12 @@ out:
free_irq(apbs[i].irq, &dummy);
iounmap(apbs[i].RamIO);
}
- pci_disable_device(dev);
return ret;
}
+module_init(applicom_init);
+module_exit(applicom_exit);
-#ifndef MODULE
-__initcall(applicom_init);
-#endif
static ssize_t ac_write(struct file *file, const char __user *buf, size_t count, loff_t * ppos)
{
@@ -488,7 +480,7 @@ static int do_ac_read(int IndexCard, char __user *buf,
struct st_ram_io *st_loc, struct mailbox *mailbox)
{
void __iomem *from = apbs[IndexCard].RamIO + RAM_TO_PC;
- unsigned char *to = (unsigned char *)&mailbox;
+ unsigned char *to = (unsigned char *)mailbox;
#ifdef DEBUG
int c;
#endif
@@ -573,6 +565,7 @@ static ssize_t ac_read (struct file *filp, char __user *buf, size_t count, loff_
struct mailbox mailbox;
/* Got a packet for us */
+ memset(&st_loc, 0, sizeof(st_loc));
ret = do_ac_read(i, buf, &st_loc, &mailbox);
spin_unlock_irqrestore(&apbs[i].mutex, flags);
set_current_state(TASK_RUNNING);
@@ -621,7 +614,7 @@ static ssize_t ac_read (struct file *filp, char __user *buf, size_t count, loff_
}
}
-static irqreturn_t ac_interrupt(int vec, void *dev_instance, struct pt_regs *regs)
+static irqreturn_t ac_interrupt(int vec, void *dev_instance)
{
unsigned int i;
unsigned int FlagInt;
@@ -697,7 +690,7 @@ static irqreturn_t ac_interrupt(int vec, void *dev_instance, struct pt_regs *reg
-static int ac_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
+static long ac_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{ /* @ ADG ou ATO selon le cas */
int i;
@@ -711,25 +704,21 @@ static int ac_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
/* In general, the device is only openable by root anyway, so we're not
particularly concerned that bogus ioctls can flood the console. */
- adgl = kmalloc(sizeof(struct st_ram_io), GFP_KERNEL);
- if (!adgl)
- return -ENOMEM;
+ adgl = memdup_user(argp, sizeof(struct st_ram_io));
+ if (IS_ERR(adgl))
+ return PTR_ERR(adgl);
- if (copy_from_user(adgl, argp, sizeof(struct st_ram_io))) {
- kfree(adgl);
- return -EFAULT;
- }
-
+ mutex_lock(&ac_mutex);
IndexCard = adgl->num_card-1;
- if(cmd != 0 && cmd != 6 &&
- ((IndexCard >= MAX_BOARD) || !apbs[IndexCard].RamIO)) {
+ if(cmd != 6 && ((IndexCard >= MAX_BOARD) || !apbs[IndexCard].RamIO)) {
static int warncount = 10;
if (warncount) {
printk( KERN_WARNING "APPLICOM driver IOCTL, bad board number %d\n",(int)IndexCard+1);
warncount--;
}
kfree(adgl);
+ mutex_unlock(&ac_mutex);
return -EINVAL;
}
@@ -814,8 +803,8 @@ static int ac_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
printk(KERN_INFO "Prom version board %d ....... V%d.%d %s",
i+1,
- (int)(readb(apbs[IndexCard].RamIO + VERS) >> 4),
- (int)(readb(apbs[IndexCard].RamIO + VERS) & 0xF),
+ (int)(readb(apbs[i].RamIO + VERS) >> 4),
+ (int)(readb(apbs[i].RamIO + VERS) & 0xF),
boardname);
@@ -842,37 +831,12 @@ static int ac_ioctl(struct inode *inode, struct file *file, unsigned int cmd, un
}
break;
default:
- printk(KERN_INFO "APPLICOM driver ioctl, unknown function code %d\n",cmd) ;
- ret = -EINVAL;
+ ret = -ENOTTY;
break;
}
Dummy = readb(apbs[IndexCard].RamIO + VERS);
kfree(adgl);
+ mutex_unlock(&ac_mutex);
return 0;
}
-#ifndef MODULE
-static int __init applicom_setup(char *str)
-{
- int ints[4];
-
- (void) get_options(str, 4, ints);
-
- if (ints[0] > 2) {
- printk(KERN_WARNING "Too many arguments to 'applicom=', expected mem,irq only.\n");
- }
-
- if (ints[0] < 2) {
- printk(KERN_INFO"applicom numargs: %d\n", ints[0]);
- return 0;
- }
-
- mem = ints[1];
- irq = ints[2];
- return 1;
-}
-
-__setup("applicom=", applicom_setup);
-
-#endif /* MODULE */
-
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 19:55:04 +0000