+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/* Derived from Applicom driver ac.c for SCO Unix */
-/* Ported by David Woodhouse, Axiom (Cambridge) Ltd. */
-/* dwmw2@infradead.org 30/8/98 */
-/* $Id: ac.c,v 1.30 2000/03/22 16:03:57 dwmw2 Exp $ */
-/* This module is for Linux 2.1 and 2.2 series kernels. */
-/*****************************************************************************/
-/* J PAGET 18/02/94 passage V2.4.2 ioctl avec code 2 reset to les interrupt */
-/* ceci pour reseter correctement apres une sortie sauvage */
-/* J PAGET 02/05/94 passage V2.4.3 dans le traitement de d'interruption, */
-/* LoopCount n'etait pas initialise a 0. */
-/* F LAFORSE 04/07/95 version V2.6.0 lecture bidon apres acces a une carte */
-/* pour liberer le bus */
-/* J.PAGET 19/11/95 version V2.6.1 Nombre, addresse,irq n'est plus configure */
-/* 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 */
-/* 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 */
-/*****************************************************************************/
-
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/sched/signal.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>
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/nospec.h>
-
-#include <asm/io.h>
-#include <linux/uaccess.h>
-
-#include "applicom.h"
-
-
-/* NOTE: We use for loops with {write,read}b() instead of
- memcpy_{from,to}io throughout this driver. This is because
- the board doesn't correctly handle word accesses - only
- bytes.
-*/
-
-
-#undef DEBUG
-
-#define MAX_BOARD 8 /* maximum of pc board possible */
-#define MAX_ISA_BOARD 4
-#define LEN_RAM_IO 0x800
-
-#ifndef PCI_VENDOR_ID_APPLICOM
-#define PCI_VENDOR_ID_APPLICOM 0x1389
-#define PCI_DEVICE_ID_APPLICOM_PCIGENERIC 0x0001
-#define PCI_DEVICE_ID_APPLICOM_PCI2000IBS_CAN 0x0002
-#define PCI_DEVICE_ID_APPLICOM_PCI2000PFB 0x0003
-#endif
-
-static DEFINE_MUTEX(ac_mutex);
-static char *applicom_pci_devnames[] = {
- "PCI board",
- "PCI2000IBS / PCI2000CAN",
- "PCI2000PFB"
-};
-
-static const struct pci_device_id applicom_pci_tbl[] = {
- { 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);
-
-MODULE_AUTHOR("David Woodhouse & Applicom International");
-MODULE_DESCRIPTION("Driver for Applicom Profibus card");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(AC_MINOR);
-
-static struct applicom_board {
- unsigned long PhysIO;
- void __iomem *RamIO;
- wait_queue_head_t FlagSleepSend;
- long irq;
- spinlock_t mutex;
-} apbs[MAX_BOARD];
-
-static unsigned int irq; /* interrupt number IRQ */
-static unsigned long mem; /* physical segment of board */
-
-module_param_hw(irq, uint, irq, 0);
-MODULE_PARM_DESC(irq, "IRQ of the Applicom board");
-module_param_hw(mem, ulong, iomem, 0);
-MODULE_PARM_DESC(mem, "Shared Memory Address of Applicom board");
-
-static unsigned int numboards; /* number of installed boards */
-static volatile unsigned char Dummy;
-static DECLARE_WAIT_QUEUE_HEAD(FlagSleepRec);
-static unsigned int WriteErrorCount; /* number of write error */
-static unsigned int ReadErrorCount; /* number of read error */
-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 long ac_ioctl(struct file *, unsigned int, unsigned long);
-static irqreturn_t ac_interrupt(int, void *);
-
-static const struct file_operations ac_fops = {
- .owner = THIS_MODULE,
- .read = ac_read,
- .write = ac_write,
- .unlocked_ioctl = ac_ioctl,
-};
-
-static struct miscdevice ac_miscdev = {
- AC_MINOR,
- "ac",
- &ac_fops
-};
-
-static int dummy; /* dev_id for request_irq() */
-
-static int ac_register_board(unsigned long physloc, void __iomem *loc,
- unsigned char boardno)
-{
- volatile unsigned char byte_reset_it;
-
- if((readb(loc + CONF_END_TEST) != 0x00) ||
- (readb(loc + CONF_END_TEST + 1) != 0x55) ||
- (readb(loc + CONF_END_TEST + 2) != 0xAA) ||
- (readb(loc + CONF_END_TEST + 3) != 0xFF))
- return 0;
-
- if (!boardno)
- boardno = readb(loc + NUMCARD_OWNER_TO_PC);
-
- 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;
- }
-
- if (apbs[boardno - 1].RamIO) {
- printk(KERN_WARNING "Board #%d (at 0x%lx) conflicts with previous board #%d (at 0x%lx)\n",
- boardno, physloc, boardno, apbs[boardno-1].PhysIO);
- return 0;
- }
-
- boardno--;
-
- apbs[boardno].PhysIO = physloc;
- apbs[boardno].RamIO = loc;
- init_waitqueue_head(&apbs[boardno].FlagSleepSend);
- spin_lock_init(&apbs[boardno].mutex);
- byte_reset_it = readb(loc + RAM_IT_TO_PC);
-
- numboards++;
- return boardno + 1;
-}
-
-static void __exit applicom_exit(void)
-{
- unsigned int i;
-
- misc_deregister(&ac_miscdev);
-
- for (i = 0; i < MAX_BOARD; i++) {
-
- if (!apbs[i].RamIO)
- continue;
-
- if (apbs[i].irq)
- free_irq(apbs[i].irq, &dummy);
-
- iounmap(apbs[i].RamIO);
- }
-}
-
-static int __init applicom_init(void)
-{
- int i, numisa = 0;
- struct pci_dev *dev = NULL;
- void __iomem *RamIO;
- int boardno, ret;
-
- printk(KERN_INFO "Applicom driver: $Id: ac.c,v 1.30 2000/03/22 16:03:57 dwmw2 Exp $\n");
-
- /* No mem and irq given - check for a PCI card */
-
- while ( (dev = pci_get_class(PCI_CLASS_OTHERS << 16, dev))) {
-
- if (!pci_match_id(applicom_pci_tbl, dev))
- continue;
-
- if (pci_enable_device(dev)) {
- pci_dev_put(dev);
- return -EIO;
- }
-
- RamIO = ioremap(pci_resource_start(dev, 0), LEN_RAM_IO);
-
- if (!RamIO) {
- 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);
- pci_dev_put(dev);
- return -EIO;
- }
-
- 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(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);
- pci_disable_device(dev);
- continue;
- }
-
- 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);
- apbs[boardno - 1].RamIO = NULL;
- continue;
- }
-
- /* Enable interrupts. */
-
- writeb(0x40, apbs[boardno - 1].RamIO + RAM_IT_FROM_PC);
-
- apbs[boardno - 1].irq = dev->irq;
- }
-
- /* Finished with PCI cards. If none registered,
- * and there was no mem/irq specified, exit */
-
- if (!mem || !irq) {
- if (numboards)
- goto fin;
- else {
- printk(KERN_INFO "ac.o: No PCI boards found.\n");
- printk(KERN_INFO "ac.o: For an ISA board you must supply memory and irq parameters.\n");
- return -ENXIO;
- }
- }
-
- /* Now try the specified ISA cards */
-
- for (i = 0; i < MAX_ISA_BOARD; i++) {
- RamIO = ioremap(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);
- continue;
- }
-
- if (!(boardno = ac_register_board((unsigned long)mem+ (LEN_RAM_IO*i),
- RamIO,i+1))) {
- iounmap(RamIO);
- continue;
- }
-
- 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, 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;
- }
- else
- apbs[boardno - 1].irq = irq;
- }
- else
- apbs[boardno - 1].irq = 0;
-
- numisa++;
- }
-
- if (!numisa)
- printk(KERN_WARNING "ac.o: No valid ISA Applicom boards found "
- "at mem 0x%lx\n", mem);
-
- fin:
- init_waitqueue_head(&FlagSleepRec);
-
- WriteErrorCount = 0;
- ReadErrorCount = 0;
- DeviceErrorCount = 0;
-
- if (numboards) {
- ret = misc_register(&ac_miscdev);
- if (ret) {
- printk(KERN_WARNING "ac.o: Unable to register misc device\n");
- goto out;
- }
- for (i = 0; i < MAX_BOARD; i++) {
- int serial;
- char boardname[(SERIAL_NUMBER - TYPE_CARD) + 1];
-
- if (!apbs[i].RamIO)
- continue;
-
- for (serial = 0; serial < SERIAL_NUMBER - TYPE_CARD; serial++)
- boardname[serial] = readb(apbs[i].RamIO + TYPE_CARD + serial);
-
- boardname[serial] = 0;
-
-
- printk(KERN_INFO "Applicom board %d: %s, PROM V%d.%d",
- i+1, boardname,
- (int)(readb(apbs[i].RamIO + VERS) >> 4),
- (int)(readb(apbs[i].RamIO + VERS) & 0xF));
-
- serial = (readb(apbs[i].RamIO + SERIAL_NUMBER) << 16) +
- (readb(apbs[i].RamIO + SERIAL_NUMBER + 1) << 8) +
- (readb(apbs[i].RamIO + SERIAL_NUMBER + 2) );
-
- if (serial != 0)
- printk(" S/N %d\n", serial);
- else
- printk("\n");
- }
- return 0;
- }
-
- else
- return -ENXIO;
-
-out:
- for (i = 0; i < MAX_BOARD; i++) {
- if (!apbs[i].RamIO)
- continue;
- if (apbs[i].irq)
- free_irq(apbs[i].irq, &dummy);
- iounmap(apbs[i].RamIO);
- }
- return ret;
-}
-
-module_init(applicom_init);
-module_exit(applicom_exit);
-
-
-static ssize_t ac_write(struct file *file, const char __user *buf, size_t count, loff_t * ppos)
-{
- unsigned int NumCard; /* Board number 1 -> 8 */
- unsigned int IndexCard; /* Index board number 0 -> 7 */
- unsigned char TicCard; /* Board TIC to send */
- unsigned long flags; /* Current priority */
- struct st_ram_io st_loc;
- struct mailbox tmpmailbox;
-#ifdef DEBUG
- int c;
-#endif
- DECLARE_WAITQUEUE(wait, current);
-
- if (count != sizeof(struct st_ram_io) + sizeof(struct mailbox)) {
- static int warncount = 5;
- if (warncount) {
- printk(KERN_INFO "Hmmm. write() of Applicom card, length %zd != expected %zd\n",
- count, sizeof(struct st_ram_io) + sizeof(struct mailbox));
- warncount--;
- }
- return -EINVAL;
- }
-
- if(copy_from_user(&st_loc, buf, sizeof(struct st_ram_io)))
- return -EFAULT;
-
- if(copy_from_user(&tmpmailbox, &buf[sizeof(struct st_ram_io)],
- sizeof(struct mailbox)))
- return -EFAULT;
-
- NumCard = st_loc.num_card; /* board number to send */
- TicCard = st_loc.tic_des_from_pc; /* tic number to send */
- IndexCard = NumCard - 1;
-
- if (IndexCard >= MAX_BOARD)
- return -EINVAL;
- IndexCard = array_index_nospec(IndexCard, MAX_BOARD);
-
- if (!apbs[IndexCard].RamIO)
- return -EINVAL;
-
-#ifdef DEBUG
- printk("Write to applicom card #%d. struct st_ram_io follows:",
- IndexCard+1);
-
- for (c = 0; c < sizeof(struct st_ram_io);) {
-
- printk("\n%5.5X: %2.2X", c, ((unsigned char *) &st_loc)[c]);
-
- for (c++; c % 8 && c < sizeof(struct st_ram_io); c++) {
- printk(" %2.2X", ((unsigned char *) &st_loc)[c]);
- }
- }
-
- printk("\nstruct mailbox follows:");
-
- for (c = 0; c < sizeof(struct mailbox);) {
- printk("\n%5.5X: %2.2X", c, ((unsigned char *) &tmpmailbox)[c]);
-
- for (c++; c % 8 && c < sizeof(struct mailbox); c++) {
- printk(" %2.2X", ((unsigned char *) &tmpmailbox)[c]);
- }
- }
-
- printk("\n");
-#endif
-
- spin_lock_irqsave(&apbs[IndexCard].mutex, flags);
-
- /* Test octet ready correct */
- if(readb(apbs[IndexCard].RamIO + DATA_FROM_PC_READY) > 2) {
- Dummy = readb(apbs[IndexCard].RamIO + VERS);
- spin_unlock_irqrestore(&apbs[IndexCard].mutex, flags);
- printk(KERN_WARNING "APPLICOM driver write error board %d, DataFromPcReady = %d\n",
- IndexCard,(int)readb(apbs[IndexCard].RamIO + DATA_FROM_PC_READY));
- DeviceErrorCount++;
- return -EIO;
- }
-
- /* Place ourselves on the wait queue */
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&apbs[IndexCard].FlagSleepSend, &wait);
-
- /* Check whether the card is ready for us */
- while (readb(apbs[IndexCard].RamIO + DATA_FROM_PC_READY) != 0) {
- Dummy = readb(apbs[IndexCard].RamIO + VERS);
- /* It's busy. Sleep. */
-
- spin_unlock_irqrestore(&apbs[IndexCard].mutex, flags);
- schedule();
- if (signal_pending(current)) {
- remove_wait_queue(&apbs[IndexCard].FlagSleepSend,
- &wait);
- return -EINTR;
- }
- spin_lock_irqsave(&apbs[IndexCard].mutex, flags);
- set_current_state(TASK_INTERRUPTIBLE);
- }
-
- /* We may not have actually slept */
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&apbs[IndexCard].FlagSleepSend, &wait);
-
- writeb(1, apbs[IndexCard].RamIO + DATA_FROM_PC_READY);
-
- /* Which is best - lock down the pages with rawio and then
- copy directly, or use bounce buffers? For now we do the latter
- because it works with 2.2 still */
- {
- unsigned char *from = (unsigned char *) &tmpmailbox;
- void __iomem *to = apbs[IndexCard].RamIO + RAM_FROM_PC;
- int c;
-
- for (c = 0; c < sizeof(struct mailbox); c++)
- writeb(*(from++), to++);
- }
-
- writeb(0x20, apbs[IndexCard].RamIO + TIC_OWNER_FROM_PC);
- writeb(0xff, apbs[IndexCard].RamIO + NUMCARD_OWNER_FROM_PC);
- writeb(TicCard, apbs[IndexCard].RamIO + TIC_DES_FROM_PC);
- writeb(NumCard, apbs[IndexCard].RamIO + NUMCARD_DES_FROM_PC);
- writeb(2, apbs[IndexCard].RamIO + DATA_FROM_PC_READY);
- writeb(1, apbs[IndexCard].RamIO + RAM_IT_FROM_PC);
- Dummy = readb(apbs[IndexCard].RamIO + VERS);
- spin_unlock_irqrestore(&apbs[IndexCard].mutex, flags);
- return 0;
-}
-
-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;
-#ifdef DEBUG
- int c;
-#endif
-
- st_loc->tic_owner_to_pc = readb(apbs[IndexCard].RamIO + TIC_OWNER_TO_PC);
- st_loc->numcard_owner_to_pc = readb(apbs[IndexCard].RamIO + NUMCARD_OWNER_TO_PC);
-
-
- {
- int c;
-
- for (c = 0; c < sizeof(struct mailbox); c++)
- *(to++) = readb(from++);
- }
- writeb(1, apbs[IndexCard].RamIO + ACK_FROM_PC_READY);
- writeb(1, apbs[IndexCard].RamIO + TYP_ACK_FROM_PC);
- writeb(IndexCard+1, apbs[IndexCard].RamIO + NUMCARD_ACK_FROM_PC);
- writeb(readb(apbs[IndexCard].RamIO + TIC_OWNER_TO_PC),
- apbs[IndexCard].RamIO + TIC_ACK_FROM_PC);
- writeb(2, apbs[IndexCard].RamIO + ACK_FROM_PC_READY);
- writeb(0, apbs[IndexCard].RamIO + DATA_TO_PC_READY);
- writeb(2, apbs[IndexCard].RamIO + RAM_IT_FROM_PC);
- Dummy = readb(apbs[IndexCard].RamIO + VERS);
-
-#ifdef DEBUG
- printk("Read from applicom card #%d. struct st_ram_io follows:", NumCard);
-
- for (c = 0; c < sizeof(struct st_ram_io);) {
- printk("\n%5.5X: %2.2X", c, ((unsigned char *)st_loc)[c]);
-
- for (c++; c % 8 && c < sizeof(struct st_ram_io); c++) {
- printk(" %2.2X", ((unsigned char *)st_loc)[c]);
- }
- }
-
- printk("\nstruct mailbox follows:");
-
- for (c = 0; c < sizeof(struct mailbox);) {
- printk("\n%5.5X: %2.2X", c, ((unsigned char *)mailbox)[c]);
-
- for (c++; c % 8 && c < sizeof(struct mailbox); c++) {
- printk(" %2.2X", ((unsigned char *)mailbox)[c]);
- }
- }
- printk("\n");
-#endif
- return (sizeof(struct st_ram_io) + sizeof(struct mailbox));
-}
-
-static ssize_t ac_read (struct file *filp, char __user *buf, size_t count, loff_t *ptr)
-{
- unsigned long flags;
- unsigned int i;
- unsigned char tmp;
- int ret = 0;
- DECLARE_WAITQUEUE(wait, current);
-#ifdef DEBUG
- int loopcount=0;
-#endif
- /* No need to ratelimit this. Only root can trigger it anyway */
- if (count != sizeof(struct st_ram_io) + sizeof(struct mailbox)) {
- printk( KERN_WARNING "Hmmm. read() of Applicom card, length %zd != expected %zd\n",
- count,sizeof(struct st_ram_io) + sizeof(struct mailbox));
- return -EINVAL;
- }
-
- while(1) {
- /* Stick ourself on the wait queue */
- set_current_state(TASK_INTERRUPTIBLE);
- add_wait_queue(&FlagSleepRec, &wait);
-
- /* Scan each board, looking for one which has a packet for us */
- for (i=0; i < MAX_BOARD; i++) {
- if (!apbs[i].RamIO)
- continue;
- spin_lock_irqsave(&apbs[i].mutex, flags);
-
- tmp = readb(apbs[i].RamIO + DATA_TO_PC_READY);
-
- if (tmp == 2) {
- struct st_ram_io st_loc;
- 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);
- remove_wait_queue(&FlagSleepRec, &wait);
-
- if (copy_to_user(buf, &st_loc, sizeof(st_loc)))
- return -EFAULT;
- if (copy_to_user(buf + sizeof(st_loc), &mailbox, sizeof(mailbox)))
- return -EFAULT;
- return tmp;
- }
-
- if (tmp > 2) {
- /* Got an error */
- Dummy = readb(apbs[i].RamIO + VERS);
-
- spin_unlock_irqrestore(&apbs[i].mutex, flags);
- set_current_state(TASK_RUNNING);
- remove_wait_queue(&FlagSleepRec, &wait);
-
- printk(KERN_WARNING "APPLICOM driver read error board %d, DataToPcReady = %d\n",
- i,(int)readb(apbs[i].RamIO + DATA_TO_PC_READY));
- DeviceErrorCount++;
- return -EIO;
- }
-
- /* Nothing for us. Try the next board */
- Dummy = readb(apbs[i].RamIO + VERS);
- spin_unlock_irqrestore(&apbs[i].mutex, flags);
-
- } /* per board */
-
- /* OK - No boards had data for us. Sleep now */
-
- schedule();
- remove_wait_queue(&FlagSleepRec, &wait);
-
- if (signal_pending(current))
- return -EINTR;
-
-#ifdef DEBUG
- if (loopcount++ > 2) {
- printk(KERN_DEBUG "Looping in ac_read. loopcount %d\n", loopcount);
- }
-#endif
- }
-}
-
-static irqreturn_t ac_interrupt(int vec, void *dev_instance)
-{
- unsigned int i;
- unsigned int FlagInt;
- unsigned int LoopCount;
- int handled = 0;
-
- // printk("Applicom interrupt on IRQ %d occurred\n", vec);
-
- LoopCount = 0;
-
- do {
- FlagInt = 0;
- for (i = 0; i < MAX_BOARD; i++) {
-
- /* Skip if this board doesn't exist */
- if (!apbs[i].RamIO)
- continue;
-
- spin_lock(&apbs[i].mutex);
-
- /* Skip if this board doesn't want attention */
- if(readb(apbs[i].RamIO + RAM_IT_TO_PC) == 0) {
- spin_unlock(&apbs[i].mutex);
- continue;
- }
-
- handled = 1;
- FlagInt = 1;
- writeb(0, apbs[i].RamIO + RAM_IT_TO_PC);
-
- if (readb(apbs[i].RamIO + DATA_TO_PC_READY) > 2) {
- printk(KERN_WARNING "APPLICOM driver interrupt err board %d, DataToPcReady = %d\n",
- i+1,(int)readb(apbs[i].RamIO + DATA_TO_PC_READY));
- DeviceErrorCount++;
- }
-
- if((readb(apbs[i].RamIO + DATA_FROM_PC_READY) > 2) &&
- (readb(apbs[i].RamIO + DATA_FROM_PC_READY) != 6)) {
-
- printk(KERN_WARNING "APPLICOM driver interrupt err board %d, DataFromPcReady = %d\n",
- i+1,(int)readb(apbs[i].RamIO + DATA_FROM_PC_READY));
- DeviceErrorCount++;
- }
-
- if (readb(apbs[i].RamIO + DATA_TO_PC_READY) == 2) { /* mailbox sent by the card ? */
- if (waitqueue_active(&FlagSleepRec)) {
- wake_up_interruptible(&FlagSleepRec);
- }
- }
-
- if (readb(apbs[i].RamIO + DATA_FROM_PC_READY) == 0) { /* ram i/o free for write by pc ? */
- if (waitqueue_active(&apbs[i].FlagSleepSend)) { /* process sleep during read ? */
- wake_up_interruptible(&apbs[i].FlagSleepSend);
- }
- }
- Dummy = readb(apbs[i].RamIO + VERS);
-
- if(readb(apbs[i].RamIO + RAM_IT_TO_PC)) {
- /* There's another int waiting on this card */
- spin_unlock(&apbs[i].mutex);
- i--;
- } else {
- spin_unlock(&apbs[i].mutex);
- }
- }
- if (FlagInt)
- LoopCount = 0;
- else
- LoopCount++;
- } while(LoopCount < 2);
- return IRQ_RETVAL(handled);
-}
-
-
-
-static long ac_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-
-{ /* @ ADG ou ATO selon le cas */
- int i;
- unsigned char IndexCard;
- void __iomem *pmem;
- int ret = 0;
- static int warncount = 10;
- volatile unsigned char byte_reset_it;
- struct st_ram_io *adgl;
- void __user *argp = (void __user *)arg;
-
- /* In general, the device is only openable by root anyway, so we're not
- particularly concerned that bogus ioctls can flood the console. */
-
- adgl = memdup_user(argp, sizeof(struct st_ram_io));
- if (IS_ERR(adgl))
- return PTR_ERR(adgl);
-
- mutex_lock(&ac_mutex);
- IndexCard = adgl->num_card-1;
-
- if (cmd != 6 && IndexCard >= MAX_BOARD)
- goto err;
- IndexCard = array_index_nospec(IndexCard, MAX_BOARD);
-
- if (cmd != 6 && !apbs[IndexCard].RamIO)
- goto err;
-
- switch (cmd) {
-
- case 0:
- pmem = apbs[IndexCard].RamIO;
- for (i = 0; i < sizeof(struct st_ram_io); i++)
- ((unsigned char *)adgl)[i]=readb(pmem++);
- if (copy_to_user(argp, adgl, sizeof(struct st_ram_io)))
- ret = -EFAULT;
- break;
- case 1:
- pmem = apbs[IndexCard].RamIO + CONF_END_TEST;
- for (i = 0; i < 4; i++)
- adgl->conf_end_test[i] = readb(pmem++);
- for (i = 0; i < 2; i++)
- adgl->error_code[i] = readb(pmem++);
- for (i = 0; i < 4; i++)
- adgl->parameter_error[i] = readb(pmem++);
- pmem = apbs[IndexCard].RamIO + VERS;
- adgl->vers = readb(pmem);
- pmem = apbs[IndexCard].RamIO + TYPE_CARD;
- for (i = 0; i < 20; i++)
- adgl->reserv1[i] = readb(pmem++);
- *(int *)&adgl->reserv1[20] =
- (readb(apbs[IndexCard].RamIO + SERIAL_NUMBER) << 16) +
- (readb(apbs[IndexCard].RamIO + SERIAL_NUMBER + 1) << 8) +
- (readb(apbs[IndexCard].RamIO + SERIAL_NUMBER + 2) );
-
- if (copy_to_user(argp, adgl, sizeof(struct st_ram_io)))
- ret = -EFAULT;
- break;
- case 2:
- pmem = apbs[IndexCard].RamIO + CONF_END_TEST;
- for (i = 0; i < 10; i++)
- writeb(0xff, pmem++);
- writeb(adgl->data_from_pc_ready,
- apbs[IndexCard].RamIO + DATA_FROM_PC_READY);
-
- writeb(1, apbs[IndexCard].RamIO + RAM_IT_FROM_PC);
-
- for (i = 0; i < MAX_BOARD; i++) {
- if (apbs[i].RamIO) {
- byte_reset_it = readb(apbs[i].RamIO + RAM_IT_TO_PC);
- }
- }
- break;
- case 3:
- pmem = apbs[IndexCard].RamIO + TIC_DES_FROM_PC;
- writeb(adgl->tic_des_from_pc, pmem);
- break;
- case 4:
- pmem = apbs[IndexCard].RamIO + TIC_OWNER_TO_PC;
- adgl->tic_owner_to_pc = readb(pmem++);
- adgl->numcard_owner_to_pc = readb(pmem);
- if (copy_to_user(argp, adgl,sizeof(struct st_ram_io)))
- ret = -EFAULT;
- break;
- case 5:
- writeb(adgl->num_card, apbs[IndexCard].RamIO + NUMCARD_OWNER_TO_PC);
- writeb(adgl->num_card, apbs[IndexCard].RamIO + NUMCARD_DES_FROM_PC);
- writeb(adgl->num_card, apbs[IndexCard].RamIO + NUMCARD_ACK_FROM_PC);
- writeb(4, apbs[IndexCard].RamIO + DATA_FROM_PC_READY);
- writeb(1, apbs[IndexCard].RamIO + RAM_IT_FROM_PC);
- break;
- case 6:
- printk(KERN_INFO "APPLICOM driver release .... V2.8.0 ($Revision: 1.30 $)\n");
- printk(KERN_INFO "Number of installed boards . %d\n", (int) numboards);
- printk(KERN_INFO "Segment of board ........... %X\n", (int) mem);
- printk(KERN_INFO "Interrupt IRQ number ....... %d\n", (int) irq);
- for (i = 0; i < MAX_BOARD; i++) {
- int serial;
- char boardname[(SERIAL_NUMBER - TYPE_CARD) + 1];
-
- if (!apbs[i].RamIO)
- continue;
-
- for (serial = 0; serial < SERIAL_NUMBER - TYPE_CARD; serial++)
- boardname[serial] = readb(apbs[i].RamIO + TYPE_CARD + serial);
- boardname[serial] = 0;
-
- printk(KERN_INFO "Prom version board %d ....... V%d.%d %s",
- i+1,
- (int)(readb(apbs[i].RamIO + VERS) >> 4),
- (int)(readb(apbs[i].RamIO + VERS) & 0xF),
- boardname);
-
-
- serial = (readb(apbs[i].RamIO + SERIAL_NUMBER) << 16) +
- (readb(apbs[i].RamIO + SERIAL_NUMBER + 1) << 8) +
- (readb(apbs[i].RamIO + SERIAL_NUMBER + 2) );
-
- if (serial != 0)
- printk(" S/N %d\n", serial);
- else
- printk("\n");
- }
- if (DeviceErrorCount != 0)
- printk(KERN_INFO "DeviceErrorCount ........... %d\n", DeviceErrorCount);
- if (ReadErrorCount != 0)
- printk(KERN_INFO "ReadErrorCount ............. %d\n", ReadErrorCount);
- if (WriteErrorCount != 0)
- printk(KERN_INFO "WriteErrorCount ............ %d\n", WriteErrorCount);
- if (waitqueue_active(&FlagSleepRec))
- printk(KERN_INFO "Process in read pending\n");
- for (i = 0; i < MAX_BOARD; i++) {
- if (apbs[i].RamIO && waitqueue_active(&apbs[i].FlagSleepSend))
- printk(KERN_INFO "Process in write pending board %d\n",i+1);
- }
- break;
- default:
- ret = -ENOTTY;
- break;
- }
-
- if (cmd != 6)
- Dummy = readb(apbs[IndexCard].RamIO + VERS);
-
- kfree(adgl);
- mutex_unlock(&ac_mutex);
- return ret;
-
-err:
- if (warncount) {
- pr_warn("APPLICOM driver IOCTL, bad board number %d\n",
- (int)IndexCard + 1);
- warncount--;
- }
- kfree(adgl);
- mutex_unlock(&ac_mutex);
- return -EINVAL;
-
-}
-
projects / thirdparty / linux.git / commitdiff
