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path: root/drivers/char/ip2/ip2main.c
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Diffstat (limited to 'drivers/char/ip2/ip2main.c')
-rw-r--r--drivers/char/ip2/ip2main.c550
1 files changed, 286 insertions, 264 deletions
diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c
index 689f9dcd3b86..70e0ebc30bd0 100644
--- a/drivers/char/ip2/ip2main.c
+++ b/drivers/char/ip2/ip2main.c
@@ -150,15 +150,12 @@ static int ip2_read_proc(char *, char **, off_t, int, int *, void * );
/*************/
/* String constants to identify ourselves */
-static char *pcName = "Computone IntelliPort Plus multiport driver";
-static char *pcVersion = "1.2.14";
+static const char pcName[] = "Computone IntelliPort Plus multiport driver";
+static const char pcVersion[] = "1.2.14";
/* String constants for port names */
-static char *pcDriver_name = "ip2";
-static char *pcIpl = "ip2ipl";
-
-// cheezy kludge or genius - you decide?
-int ip2_loadmain(int *, int *);
+static const char pcDriver_name[] = "ip2";
+static const char pcIpl[] = "ip2ipl";
/***********************/
/* Function Prototypes */
@@ -240,8 +237,8 @@ static const struct file_operations ip2_ipl = {
.open = ip2_ipl_open,
};
-static unsigned long irq_counter = 0;
-static unsigned long bh_counter = 0;
+static unsigned long irq_counter;
+static unsigned long bh_counter;
// Use immediate queue to service interrupts
#define USE_IQI
@@ -252,7 +249,6 @@ static unsigned long bh_counter = 0;
*/
#define POLL_TIMEOUT (jiffies + 1)
static DEFINE_TIMER(PollTimer, ip2_poll, 0, 0);
-static char TimerOn;
#ifdef IP2DEBUG_TRACE
/* Trace (debug) buffer data */
@@ -268,8 +264,8 @@ static int tracewrap;
/**********/
#if defined(MODULE) && defined(IP2DEBUG_OPEN)
-#define DBG_CNT(s) printk(KERN_DEBUG "(%s): [%x] refc=%d, ttyc=%d, modc=%x -> %s\n", \
- tty->name,(pCh->flags),ip2_tty_driver->refcount, \
+#define DBG_CNT(s) printk(KERN_DEBUG "(%s): [%x] ttyc=%d, modc=%x -> %s\n", \
+ tty->name,(pCh->flags), \
tty->count,/*GET_USE_COUNT(module)*/0,s)
#else
#define DBG_CNT(s)
@@ -287,8 +283,9 @@ static int tracewrap;
MODULE_AUTHOR("Doug McNash");
MODULE_DESCRIPTION("Computone IntelliPort Plus Driver");
+MODULE_LICENSE("GPL");
-static int poll_only = 0;
+static int poll_only;
static int Eisa_irq;
static int Eisa_slot;
@@ -297,34 +294,46 @@ static int iindx;
static char rirqs[IP2_MAX_BOARDS];
static int Valid_Irqs[] = { 3, 4, 5, 7, 10, 11, 12, 15, 0};
+/* Note: Add compiled in defaults to these arrays, not to the structure
+ in ip2.h any longer. That structure WILL get overridden
+ by these values, or command line values, or insmod values!!! =mhw=
+*/
+static int io[IP2_MAX_BOARDS];
+static int irq[IP2_MAX_BOARDS] = { -1, -1, -1, -1 };
+
+MODULE_AUTHOR("Doug McNash");
+MODULE_DESCRIPTION("Computone IntelliPort Plus Driver");
+module_param_array(irq, int, NULL, 0);
+MODULE_PARM_DESC(irq, "Interrupts for IntelliPort Cards");
+module_param_array(io, int, NULL, 0);
+MODULE_PARM_DESC(io, "I/O ports for IntelliPort Cards");
+module_param(poll_only, bool, 0);
+MODULE_PARM_DESC(poll_only, "Do not use card interrupts");
+
/* for sysfs class support */
static struct class *ip2_class;
-// Some functions to keep track of what irq's we have
+/* Some functions to keep track of what irqs we have */
-static int
-is_valid_irq(int irq)
+static int __init is_valid_irq(int irq)
{
int *i = Valid_Irqs;
- while ((*i != 0) && (*i != irq)) {
+ while (*i != 0 && *i != irq)
i++;
- }
- return (*i);
+
+ return *i;
}
-static void
-mark_requested_irq( char irq )
+static void __init mark_requested_irq(char irq)
{
rirqs[iindx++] = irq;
}
-#ifdef MODULE
-static int
-clear_requested_irq( char irq )
+static int __exit clear_requested_irq(char irq)
{
int i;
- for ( i = 0; i < IP2_MAX_BOARDS; ++i ) {
+ for (i = 0; i < IP2_MAX_BOARDS; ++i) {
if (rirqs[i] == irq) {
rirqs[i] = 0;
return 1;
@@ -332,17 +341,15 @@ clear_requested_irq( char irq )
}
return 0;
}
-#endif
-static int
-have_requested_irq( char irq )
+static int have_requested_irq(char irq)
{
- // array init to zeros so 0 irq will not be requested as a side effect
+ /* array init to zeros so 0 irq will not be requested as a side
+ * effect */
int i;
- for ( i = 0; i < IP2_MAX_BOARDS; ++i ) {
+ for (i = 0; i < IP2_MAX_BOARDS; ++i)
if (rirqs[i] == irq)
return 1;
- }
return 0;
}
@@ -361,53 +368,45 @@ have_requested_irq( char irq )
/* handle subsequent installations of the driver. All memory allocated by the */
/* driver should be returned since it may be unloaded from memory. */
/******************************************************************************/
-#ifdef MODULE
-void __exit
-ip2_cleanup_module(void)
+static void __exit ip2_cleanup_module(void)
{
int err;
int i;
-#ifdef IP2DEBUG_INIT
- printk (KERN_DEBUG "Unloading %s: version %s\n", pcName, pcVersion );
-#endif
- /* Stop poll timer if we had one. */
- if ( TimerOn ) {
- del_timer ( &PollTimer );
- TimerOn = 0;
- }
+ del_timer_sync(&PollTimer);
/* Reset the boards we have. */
- for( i = 0; i < IP2_MAX_BOARDS; ++i ) {
- if ( i2BoardPtrTable[i] ) {
- iiReset( i2BoardPtrTable[i] );
- }
- }
+ for (i = 0; i < IP2_MAX_BOARDS; i++)
+ if (i2BoardPtrTable[i])
+ iiReset(i2BoardPtrTable[i]);
/* The following is done at most once, if any boards were installed. */
- for ( i = 0; i < IP2_MAX_BOARDS; ++i ) {
- if ( i2BoardPtrTable[i] ) {
- iiResetDelay( i2BoardPtrTable[i] );
+ for (i = 0; i < IP2_MAX_BOARDS; i++) {
+ if (i2BoardPtrTable[i]) {
+ iiResetDelay(i2BoardPtrTable[i]);
/* free io addresses and Tibet */
- release_region( ip2config.addr[i], 8 );
+ release_region(ip2config.addr[i], 8);
device_destroy(ip2_class, MKDEV(IP2_IPL_MAJOR, 4 * i));
- device_destroy(ip2_class, MKDEV(IP2_IPL_MAJOR, 4 * i + 1));
+ device_destroy(ip2_class, MKDEV(IP2_IPL_MAJOR,
+ 4 * i + 1));
}
/* Disable and remove interrupt handler. */
- if ( (ip2config.irq[i] > 0) && have_requested_irq(ip2config.irq[i]) ) {
- free_irq ( ip2config.irq[i], (void *)&pcName);
- clear_requested_irq( ip2config.irq[i]);
+ if (ip2config.irq[i] > 0 &&
+ have_requested_irq(ip2config.irq[i])) {
+ free_irq(ip2config.irq[i], (void *)&pcName);
+ clear_requested_irq(ip2config.irq[i]);
}
}
class_destroy(ip2_class);
- if ( ( err = tty_unregister_driver ( ip2_tty_driver ) ) ) {
- printk(KERN_ERR "IP2: failed to unregister tty driver (%d)\n", err);
- }
+ err = tty_unregister_driver(ip2_tty_driver);
+ if (err)
+ printk(KERN_ERR "IP2: failed to unregister tty driver (%d)\n",
+ err);
put_tty_driver(ip2_tty_driver);
unregister_chrdev(IP2_IPL_MAJOR, pcIpl);
remove_proc_entry("ip2mem", NULL);
- // free memory
+ /* free memory */
for (i = 0; i < IP2_MAX_BOARDS; i++) {
void *pB;
#ifdef CONFIG_PCI
@@ -417,24 +416,18 @@ ip2_cleanup_module(void)
ip2config.pci_dev[i] = NULL;
}
#endif
- if ((pB = i2BoardPtrTable[i]) != 0 ) {
- kfree ( pB );
+ pB = i2BoardPtrTable[i];
+ if (pB != NULL) {
+ kfree(pB);
i2BoardPtrTable[i] = NULL;
}
- if ((DevTableMem[i]) != NULL ) {
- kfree ( DevTableMem[i] );
+ if (DevTableMem[i] != NULL) {
+ kfree(DevTableMem[i]);
DevTableMem[i] = NULL;
}
}
-
- /* Cleanup the iiEllis subsystem. */
- iiEllisCleanup();
-#ifdef IP2DEBUG_INIT
- printk (KERN_DEBUG "IP2 Unloaded\n" );
-#endif
}
module_exit(ip2_cleanup_module);
-#endif /* MODULE */
static const struct tty_operations ip2_ops = {
.open = ip2_open,
@@ -494,139 +487,168 @@ static const struct firmware *ip2_request_firmware(void)
return fw;
}
-int
-ip2_loadmain(int *iop, int *irqp)
+#ifndef MODULE
+/******************************************************************************
+ * ip2_setup:
+ * str: kernel command line string
+ *
+ * Can't autoprobe the boards so user must specify configuration on
+ * kernel command line. Sane people build it modular but the others
+ * come here.
+ *
+ * Alternating pairs of io,irq for up to 4 boards.
+ * ip2=io0,irq0,io1,irq1,io2,irq2,io3,irq3
+ *
+ * io=0 => No board
+ * io=1 => PCI
+ * io=2 => EISA
+ * else => ISA I/O address
+ *
+ * irq=0 or invalid for ISA will revert to polling mode
+ *
+ * Any value = -1, do not overwrite compiled in value.
+ *
+ ******************************************************************************/
+static int __init ip2_setup(char *str)
+{
+ int j, ints[10]; /* 4 boards, 2 parameters + 2 */
+ unsigned int i;
+
+ str = get_options(str, ARRAY_SIZE(ints), ints);
+
+ for (i = 0, j = 1; i < 4; i++) {
+ if (j > ints[0])
+ break;
+ if (ints[j] >= 0)
+ io[i] = ints[j];
+ j++;
+ if (j > ints[0])
+ break;
+ if (ints[j] >= 0)
+ irq[i] = ints[j];
+ j++;
+ }
+ return 1;
+}
+__setup("ip2=", ip2_setup);
+#endif /* !MODULE */
+
+static int __init ip2_loadmain(void)
{
int i, j, box;
int err = 0;
- static int loaded;
i2eBordStrPtr pB = NULL;
int rc = -1;
- static struct pci_dev *pci_dev_i = NULL;
+ struct pci_dev *pdev = NULL;
const struct firmware *fw = NULL;
- ip2trace (ITRC_NO_PORT, ITRC_INIT, ITRC_ENTER, 0 );
+ if (poll_only) {
+ /* Hard lock the interrupts to zero */
+ irq[0] = irq[1] = irq[2] = irq[3] = poll_only = 0;
+ }
+
+ ip2trace(ITRC_NO_PORT, ITRC_INIT, ITRC_ENTER, 0);
/* process command line arguments to modprobe or
insmod i.e. iop & irqp */
/* irqp and iop should ALWAYS be specified now... But we check
them individually just to be sure, anyways... */
- for ( i = 0; i < IP2_MAX_BOARDS; ++i ) {
- if (iop) {
- ip2config.addr[i] = iop[i];
- if (irqp) {
- if( irqp[i] >= 0 ) {
- ip2config.irq[i] = irqp[i];
- } else {
- ip2config.irq[i] = 0;
- }
- // This is a little bit of a hack. If poll_only=1 on command
- // line back in ip2.c OR all IRQs on all specified boards are
- // explicitly set to 0, then drop to poll only mode and override
- // PCI or EISA interrupts. This superceeds the old hack of
- // triggering if all interrupts were zero (like da default).
- // Still a hack but less prone to random acts of terrorism.
- //
- // What we really should do, now that the IRQ default is set
- // to -1, is to use 0 as a hard coded, do not probe.
- //
- // /\/\|=mhw=|\/\/
- poll_only |= irqp[i];
- }
- }
+ for (i = 0; i < IP2_MAX_BOARDS; ++i) {
+ ip2config.addr[i] = io[i];
+ if (irq[i] >= 0)
+ ip2config.irq[i] = irq[i];
+ else
+ ip2config.irq[i] = 0;
+ /* This is a little bit of a hack. If poll_only=1 on command
+ line back in ip2.c OR all IRQs on all specified boards are
+ explicitly set to 0, then drop to poll only mode and override
+ PCI or EISA interrupts. This superceeds the old hack of
+ triggering if all interrupts were zero (like da default).
+ Still a hack but less prone to random acts of terrorism.
+
+ What we really should do, now that the IRQ default is set
+ to -1, is to use 0 as a hard coded, do not probe.
+
+ /\/\|=mhw=|\/\/
+ */
+ poll_only |= irq[i];
}
poll_only = !poll_only;
/* Announce our presence */
- printk( KERN_INFO "%s version %s\n", pcName, pcVersion );
-
- // ip2 can be unloaded and reloaded for no good reason
- // we can't let that happen here or bad things happen
- // second load hoses board but not system - fixme later
- if (loaded) {
- printk( KERN_INFO "Still loaded\n" );
- return 0;
- }
- loaded++;
+ printk(KERN_INFO "%s version %s\n", pcName, pcVersion);
ip2_tty_driver = alloc_tty_driver(IP2_MAX_PORTS);
if (!ip2_tty_driver)
return -ENOMEM;
- /* Initialise the iiEllis subsystem. */
- iiEllisInit();
-
- /* Initialize arrays. */
- memset( i2BoardPtrTable, 0, sizeof i2BoardPtrTable );
- memset( DevTable, 0, sizeof DevTable );
-
/* Initialise all the boards we can find (up to the maximum). */
- for ( i = 0; i < IP2_MAX_BOARDS; ++i ) {
- switch ( ip2config.addr[i] ) {
+ for (i = 0; i < IP2_MAX_BOARDS; ++i) {
+ switch (ip2config.addr[i]) {
case 0: /* skip this slot even if card is present */
break;
default: /* ISA */
/* ISA address must be specified */
- if ( (ip2config.addr[i] < 0x100) || (ip2config.addr[i] > 0x3f8) ) {
- printk ( KERN_ERR "IP2: Bad ISA board %d address %x\n",
- i, ip2config.addr[i] );
+ if (ip2config.addr[i] < 0x100 ||
+ ip2config.addr[i] > 0x3f8) {
+ printk(KERN_ERR "IP2: Bad ISA board %d "
+ "address %x\n", i,
+ ip2config.addr[i]);
ip2config.addr[i] = 0;
- } else {
- ip2config.type[i] = ISA;
-
- /* Check for valid irq argument, set for polling if invalid */
- if (ip2config.irq[i] && !is_valid_irq(ip2config.irq[i])) {
- printk(KERN_ERR "IP2: Bad IRQ(%d) specified\n",ip2config.irq[i]);
- ip2config.irq[i] = 0;// 0 is polling and is valid in that sense
- }
+ break;
+ }
+ ip2config.type[i] = ISA;
+
+ /* Check for valid irq argument, set for polling if
+ * invalid */
+ if (ip2config.irq[i] &&
+ !is_valid_irq(ip2config.irq[i])) {
+ printk(KERN_ERR "IP2: Bad IRQ(%d) specified\n",
+ ip2config.irq[i]);
+ /* 0 is polling and is valid in that sense */
+ ip2config.irq[i] = 0;
}
break;
case PCI:
#ifdef CONFIG_PCI
- {
- int status;
+ {
+ u32 addr;
+ int status;
- pci_dev_i = pci_get_device(PCI_VENDOR_ID_COMPUTONE,
- PCI_DEVICE_ID_COMPUTONE_IP2EX, pci_dev_i);
- if (pci_dev_i != NULL) {
- unsigned int addr;
-
- if (pci_enable_device(pci_dev_i)) {
- printk( KERN_ERR "IP2: can't enable PCI device at %s\n",
- pci_name(pci_dev_i));
- break;
- }
- ip2config.type[i] = PCI;
- ip2config.pci_dev[i] = pci_dev_get(pci_dev_i);
- status =
- pci_read_config_dword(pci_dev_i, PCI_BASE_ADDRESS_1, &addr);
- if ( addr & 1 ) {
- ip2config.addr[i]=(USHORT)(addr&0xfffe);
- } else {
- printk( KERN_ERR "IP2: PCI I/O address error\n");
- }
+ pdev = pci_get_device(PCI_VENDOR_ID_COMPUTONE,
+ PCI_DEVICE_ID_COMPUTONE_IP2EX, pdev);
+ if (pdev == NULL) {
+ ip2config.addr[i] = 0;
+ printk(KERN_ERR "IP2: PCI board %d not "
+ "found\n", i);
+ break;
+ }
-// If the PCI BIOS assigned it, lets try and use it. If we
-// can't acquire it or it screws up, deal with it then.
-
-// if (!is_valid_irq(pci_irq)) {
-// printk( KERN_ERR "IP2: Bad PCI BIOS IRQ(%d)\n",pci_irq);
-// pci_irq = 0;
-// }
- ip2config.irq[i] = pci_dev_i->irq;
- } else { // ann error
- ip2config.addr[i] = 0;
- printk(KERN_ERR "IP2: PCI board %d not found\n", i);
- }
+ if (pci_enable_device(pdev)) {
+ dev_err(&pdev->dev, "can't enable device\n");
+ break;
}
+ ip2config.type[i] = PCI;
+ ip2config.pci_dev[i] = pci_dev_get(pdev);
+ status = pci_read_config_dword(pdev, PCI_BASE_ADDRESS_1,
+ &addr);
+ if (addr & 1)
+ ip2config.addr[i] = (USHORT)(addr & 0xfffe);
+ else
+ dev_err(&pdev->dev, "I/O address error\n");
+
+ ip2config.irq[i] = pdev->irq;
+ }
#else
- printk( KERN_ERR "IP2: PCI card specified but PCI support not\n");
- printk( KERN_ERR "IP2: configured in this kernel.\n");
- printk( KERN_ERR "IP2: Recompile kernel with CONFIG_PCI defined!\n");
+ printk(KERN_ERR "IP2: PCI card specified but PCI "
+ "support not enabled.\n");
+ printk(KERN_ERR "IP2: Recompile kernel with CONFIG_PCI "
+ "defined!\n");
#endif /* CONFIG_PCI */
break;
case EISA:
- if ( (ip2config.addr[i] = find_eisa_board( Eisa_slot + 1 )) != 0) {
+ ip2config.addr[i] = find_eisa_board(Eisa_slot + 1);
+ if (ip2config.addr[i] != 0) {
/* Eisa_irq set as side effect, boo */
ip2config.type[i] = EISA;
}
@@ -634,31 +656,32 @@ ip2_loadmain(int *iop, int *irqp)
break;
} /* switch */
} /* for */
- if (pci_dev_i)
- pci_dev_put(pci_dev_i);
+ pci_dev_put(pdev);
- for ( i = 0; i < IP2_MAX_BOARDS; ++i ) {
- if ( ip2config.addr[i] ) {
+ for (i = 0; i < IP2_MAX_BOARDS; ++i) {
+ if (ip2config.addr[i]) {
pB = kzalloc(sizeof(i2eBordStr), GFP_KERNEL);
if (pB) {
i2BoardPtrTable[i] = pB;
- iiSetAddress( pB, ip2config.addr[i], ii2DelayTimer );
- iiReset( pB );
- } else {
- printk(KERN_ERR "IP2: board memory allocation error\n");
- }
+ iiSetAddress(pB, ip2config.addr[i],
+ ii2DelayTimer);
+ iiReset(pB);
+ } else
+ printk(KERN_ERR "IP2: board memory allocation "
+ "error\n");
}
}
- for ( i = 0; i < IP2_MAX_BOARDS; ++i ) {
- if ( ( pB = i2BoardPtrTable[i] ) != NULL ) {
- iiResetDelay( pB );
+ for (i = 0; i < IP2_MAX_BOARDS; ++i) {
+ pB = i2BoardPtrTable[i];
+ if (pB != NULL) {
+ iiResetDelay(pB);
break;
}
}
- for ( i = 0; i < IP2_MAX_BOARDS; ++i ) {
+ for (i = 0; i < IP2_MAX_BOARDS; ++i) {
/* We don't want to request the firmware unless we have at
least one board */
- if ( i2BoardPtrTable[i] != NULL ) {
+ if (i2BoardPtrTable[i] != NULL) {
if (!fw)
fw = ip2_request_firmware();
if (!fw)
@@ -669,7 +692,7 @@ ip2_loadmain(int *iop, int *irqp)
if (fw)
release_firmware(fw);
- ip2trace (ITRC_NO_PORT, ITRC_INIT, 2, 0 );
+ ip2trace(ITRC_NO_PORT, ITRC_INIT, 2, 0);
ip2_tty_driver->owner = THIS_MODULE;
ip2_tty_driver->name = "ttyF";
@@ -680,20 +703,23 @@ ip2_loadmain(int *iop, int *irqp)
ip2_tty_driver->subtype = SERIAL_TYPE_NORMAL;
ip2_tty_driver->init_termios = tty_std_termios;
ip2_tty_driver->init_termios.c_cflag = B9600|CS8|CREAD|HUPCL|CLOCAL;
- ip2_tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
+ ip2_tty_driver->flags = TTY_DRIVER_REAL_RAW |
+ TTY_DRIVER_DYNAMIC_DEV;
tty_set_operations(ip2_tty_driver, &ip2_ops);
- ip2trace (ITRC_NO_PORT, ITRC_INIT, 3, 0 );
+ ip2trace(ITRC_NO_PORT, ITRC_INIT, 3, 0);
- /* Register the tty devices. */
- if ( ( err = tty_register_driver ( ip2_tty_driver ) ) ) {
- printk(KERN_ERR "IP2: failed to register tty driver (%d)\n", err);
+ err = tty_register_driver(ip2_tty_driver);
+ if (err) {
+ printk(KERN_ERR "IP2: failed to register tty driver\n");
put_tty_driver(ip2_tty_driver);
- return -EINVAL;
- } else
- /* Register the IPL driver. */
- if ( ( err = register_chrdev ( IP2_IPL_MAJOR, pcIpl, &ip2_ipl ) ) ) {
- printk(KERN_ERR "IP2: failed to register IPL device (%d)\n", err );
+ return err; /* leaking resources */
+ }
+
+ err = register_chrdev(IP2_IPL_MAJOR, pcIpl, &ip2_ipl);
+ if (err) {
+ printk(KERN_ERR "IP2: failed to register IPL device (%d)\n",
+ err);
} else {
/* create the sysfs class */
ip2_class = class_create(THIS_MODULE, "ip2");
@@ -705,84 +731,86 @@ ip2_loadmain(int *iop, int *irqp)
/* Register the read_procmem thing */
if (!proc_create("ip2mem",0,NULL,&ip2mem_proc_fops)) {
printk(KERN_ERR "IP2: failed to register read_procmem\n");
- } else {
+ return -EIO; /* leaking resources */
+ }
- ip2trace (ITRC_NO_PORT, ITRC_INIT, 4, 0 );
- /* Register the interrupt handler or poll handler, depending upon the
- * specified interrupt.
- */
+ ip2trace(ITRC_NO_PORT, ITRC_INIT, 4, 0);
+ /* Register the interrupt handler or poll handler, depending upon the
+ * specified interrupt.
+ */
- for( i = 0; i < IP2_MAX_BOARDS; ++i ) {
- if ( 0 == ip2config.addr[i] ) {
- continue;
- }
+ for (i = 0; i < IP2_MAX_BOARDS; ++i) {
+ if (ip2config.addr[i] == 0)
+ continue;
- if ( NULL != ( pB = i2BoardPtrTable[i] ) ) {
- device_create_drvdata(ip2_class, NULL,
- MKDEV(IP2_IPL_MAJOR, 4 * i),
- NULL, "ipl%d", i);
- device_create_drvdata(ip2_class, NULL,
- MKDEV(IP2_IPL_MAJOR, 4 * i + 1),
- NULL, "stat%d", i);
-
- for ( box = 0; box < ABS_MAX_BOXES; ++box )
- {
- for ( j = 0; j < ABS_BIGGEST_BOX; ++j )
- {
- if ( pB->i2eChannelMap[box] & (1 << j) )
- {
- tty_register_device(ip2_tty_driver,
- j + ABS_BIGGEST_BOX *
- (box+i*ABS_MAX_BOXES), NULL);
- }
- }
- }
- }
+ pB = i2BoardPtrTable[i];
+ if (pB != NULL) {
+ device_create(ip2_class, NULL,
+ MKDEV(IP2_IPL_MAJOR, 4 * i),
+ NULL, "ipl%d", i);
+ device_create(ip2_class, NULL,
+ MKDEV(IP2_IPL_MAJOR, 4 * i + 1),
+ NULL, "stat%d", i);
+
+ for (box = 0; box < ABS_MAX_BOXES; box++)
+ for (j = 0; j < ABS_BIGGEST_BOX; j++)
+ if (pB->i2eChannelMap[box] & (1 << j))
+ tty_register_device(
+ ip2_tty_driver,
+ j + ABS_BIGGEST_BOX *
+ (box+i*ABS_MAX_BOXES),
+ NULL);
+ }
- if (poll_only) {
-// Poll only forces driver to only use polling and
-// to ignore the probed PCI or EISA interrupts.
- ip2config.irq[i] = CIR_POLL;
- }
- if ( ip2config.irq[i] == CIR_POLL ) {
+ if (poll_only) {
+ /* Poll only forces driver to only use polling and
+ to ignore the probed PCI or EISA interrupts. */
+ ip2config.irq[i] = CIR_POLL;
+ }
+ if (ip2config.irq[i] == CIR_POLL) {
retry:
- if (!TimerOn) {
- PollTimer.expires = POLL_TIMEOUT;
- add_timer ( &PollTimer );
- TimerOn = 1;
- printk( KERN_INFO "IP2: polling\n");
- }
- } else {
- if (have_requested_irq(ip2config.irq[i]))
- continue;
- rc = request_irq( ip2config.irq[i], ip2_interrupt,
- IP2_SA_FLAGS | (ip2config.type[i] == PCI ? IRQF_SHARED : 0),
- pcName, i2BoardPtrTable[i]);
- if (rc) {
- printk(KERN_ERR "IP2: an request_irq failed: error %d\n",rc);
- ip2config.irq[i] = CIR_POLL;
- printk( KERN_INFO "IP2: Polling %ld/sec.\n",
- (POLL_TIMEOUT - jiffies));
- goto retry;
- }
- mark_requested_irq(ip2config.irq[i]);
- /* Initialise the interrupt handler bottom half (aka slih). */
+ if (!timer_pending(&PollTimer)) {
+ mod_timer(&PollTimer, POLL_TIMEOUT);
+ printk(KERN_INFO "IP2: polling\n");
}
- }
- for( i = 0; i < IP2_MAX_BOARDS; ++i ) {
- if ( i2BoardPtrTable[i] ) {
- set_irq( i, ip2config.irq[i] ); /* set and enable board interrupt */
+ } else {
+ if (have_requested_irq(ip2config.irq[i]))
+ continue;
+ rc = request_irq(ip2config.irq[i], ip2_interrupt,
+ IP2_SA_FLAGS |
+ (ip2config.type[i] == PCI ? IRQF_SHARED : 0),
+ pcName, i2BoardPtrTable[i]);
+ if (rc) {
+ printk(KERN_ERR "IP2: request_irq failed: "
+ "error %d\n", rc);
+ ip2config.irq[i] = CIR_POLL;
+ printk(KERN_INFO "IP2: Polling %ld/sec.\n",
+ (POLL_TIMEOUT - jiffies));
+ goto retry;
}
+ mark_requested_irq(ip2config.irq[i]);
+ /* Initialise the interrupt handler bottom half
+ * (aka slih). */
}
}
- ip2trace (ITRC_NO_PORT, ITRC_INIT, ITRC_RETURN, 0 );
- goto out;
+
+ for (i = 0; i < IP2_MAX_BOARDS; ++i) {
+ if (i2BoardPtrTable[i]) {
+ /* set and enable board interrupt */
+ set_irq(i, ip2config.irq[i]);
+ }
+ }
+
+ ip2trace(ITRC_NO_PORT, ITRC_INIT, ITRC_RETURN, 0);
+
+ return 0;
out_chrdev:
unregister_chrdev(IP2_IPL_MAJOR, "ip2");
-out:
+ /* unregister and put tty here */
return err;
}
+module_init(ip2_loadmain);
/******************************************************************************/
/* Function: ip2_init_board() */
@@ -1199,9 +1227,8 @@ ip2_polled_interrupt(void)
{
int i;
i2eBordStrPtr pB;
- const int irq = 0;
- ip2trace (ITRC_NO_PORT, ITRC_INTR, 99, 1, irq );
+ ip2trace(ITRC_NO_PORT, ITRC_INTR, 99, 1, 0);
/* Service just the boards on the list using this irq */
for( i = 0; i < i2nBoards; ++i ) {
@@ -1210,9 +1237,8 @@ ip2_polled_interrupt(void)
// Only process those boards which match our IRQ.
// IRQ = 0 for polled boards, we won't poll "IRQ" boards
- if ( pB && (pB->i2eUsingIrq == irq) ) {
+ if (pB && pB->i2eUsingIrq == 0)
ip2_irq_work(pB);
- }
}
++irq_counter;
@@ -1250,16 +1276,12 @@ ip2_poll(unsigned long arg)
{
ip2trace (ITRC_NO_PORT, ITRC_INTR, 100, 0 );
- TimerOn = 0; // it's the truth but not checked in service
-
// Just polled boards, IRQ = 0 will hit all non-interrupt boards.
// It will NOT poll boards handled by hard interrupts.
// The issue of queued BH interrupts is handled in ip2_interrupt().
ip2_polled_interrupt();
- PollTimer.expires = POLL_TIMEOUT;
- add_timer( &PollTimer );
- TimerOn = 1;
+ mod_timer(&PollTimer, POLL_TIMEOUT);
ip2trace (ITRC_NO_PORT, ITRC_INTR, ITRC_RETURN, 0 );
}
@@ -2871,7 +2893,7 @@ ip2_ipl_ioctl (struct file *pFile, UINT cmd, ULONG arg )
case 13:
switch ( cmd ) {
case 64: /* Driver - ip2stat */
- rc = put_user(ip2_tty_driver->refcount, pIndex++ );
+ rc = put_user(-1, pIndex++ );
rc = put_user(irq_counter, pIndex++ );
rc = put_user(bh_counter, pIndex++ );
break;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-11 19:21:00 +0100