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path: root/drivers/isdn/hysdn/boardergo.c
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Diffstat (limited to 'drivers/isdn/hysdn/boardergo.c')
-rw-r--r--drivers/isdn/hysdn/boardergo.c82
1 files changed, 37 insertions, 45 deletions
diff --git a/drivers/isdn/hysdn/boardergo.c b/drivers/isdn/hysdn/boardergo.c
index 73afebdf80b..2aa2a0e0824 100644
--- a/drivers/isdn/hysdn/boardergo.c
+++ b/drivers/isdn/hysdn/boardergo.c
@@ -14,7 +14,6 @@
*
*/
-#include <linux/sched.h>
#include <linux/signal.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
@@ -26,14 +25,14 @@
#include "hysdn_defs.h"
#include "boardergo.h"
-#define byteout(addr,val) outb(val,addr)
+#define byteout(addr, val) outb(val, addr)
#define bytein(addr) inb(addr)
/***************************************************/
/* The cards interrupt handler. Called from system */
/***************************************************/
static irqreturn_t
-ergo_interrupt(int intno, void *dev_id, struct pt_regs *regs)
+ergo_interrupt(int intno, void *dev_id)
{
hysdn_card *card = dev_id; /* parameter from irq */
tErgDpram *dpr;
@@ -45,11 +44,10 @@ ergo_interrupt(int intno, void *dev_id, struct pt_regs *regs)
if (!card->irq_enabled)
return IRQ_NONE; /* other device interrupting or irq switched off */
- save_flags(flags);
- cli(); /* no further irqs allowed */
+ spin_lock_irqsave(&card->hysdn_lock, flags); /* no further irqs allowed */
if (!(bytein(card->iobase + PCI9050_INTR_REG) & PCI9050_INTR_REG_STAT1)) {
- restore_flags(flags); /* restore old state */
+ spin_unlock_irqrestore(&card->hysdn_lock, flags); /* restore old state */
return IRQ_NONE; /* no interrupt requested by E1 */
}
/* clear any pending ints on the board */
@@ -61,19 +59,21 @@ ergo_interrupt(int intno, void *dev_id, struct pt_regs *regs)
/* start kernel task immediately after leaving all interrupts */
if (!card->hw_lock)
schedule_work(&card->irq_queue);
- restore_flags(flags);
+ spin_unlock_irqrestore(&card->hysdn_lock, flags);
return IRQ_HANDLED;
} /* ergo_interrupt */
/******************************************************************************/
-/* ergo_irq_bh is the function called by the immediate kernel task list after */
-/* being activated with queue_task and no interrupts active. This task is the */
-/* only one handling data transfer from or to the card after booting. The task */
-/* may be queued from everywhere (interrupts included). */
+/* ergo_irq_bh will be called as part of the kernel clearing its shared work */
+/* queue sometime after a call to schedule_work has been made passing our */
+/* work_struct. This task is the only one handling data transfer from or to */
+/* the card after booting. The task may be queued from everywhere */
+/* (interrupts included). */
/******************************************************************************/
static void
-ergo_irq_bh(hysdn_card * card)
+ergo_irq_bh(struct work_struct *ugli_api)
{
+ hysdn_card *card = container_of(ugli_api, hysdn_card, irq_queue);
tErgDpram *dpr;
int again;
unsigned long flags;
@@ -83,16 +83,14 @@ ergo_irq_bh(hysdn_card * card)
dpr = card->dpram; /* point to DPRAM */
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&card->hysdn_lock, flags);
if (card->hw_lock) {
- restore_flags(flags); /* hardware currently unavailable */
+ spin_unlock_irqrestore(&card->hysdn_lock, flags); /* hardware currently unavailable */
return;
}
card->hw_lock = 1; /* we now lock the hardware */
do {
- sti(); /* reenable other ints */
again = 0; /* assume loop not to be repeated */
if (!dpr->ToHyFlag) {
@@ -112,7 +110,6 @@ ergo_irq_bh(hysdn_card * card)
again = 1; /* restart loop */
}
} /* a message has arrived for us */
- cli(); /* no further ints */
if (again) {
dpr->ToHyInt = 1;
dpr->ToPcInt = 1; /* interrupt to E1 for all cards */
@@ -120,7 +117,7 @@ ergo_irq_bh(hysdn_card * card)
card->hw_lock = 0; /* free hardware again */
} while (again); /* until nothing more to do */
- restore_flags(flags);
+ spin_unlock_irqrestore(&card->hysdn_lock, flags);
} /* ergo_irq_bh */
@@ -128,7 +125,7 @@ ergo_irq_bh(hysdn_card * card)
/* stop the card (hardware reset) and disable interrupts */
/*********************************************************/
static void
-ergo_stopcard(hysdn_card * card)
+ergo_stopcard(hysdn_card *card)
{
unsigned long flags;
unsigned char val;
@@ -137,8 +134,7 @@ ergo_stopcard(hysdn_card * card)
#ifdef CONFIG_HYSDN_CAPI
hycapi_capi_stop(card);
#endif /* CONFIG_HYSDN_CAPI */
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&card->hysdn_lock, flags);
val = bytein(card->iobase + PCI9050_INTR_REG); /* get actual value */
val &= ~(PCI9050_INTR_REG_ENPCI | PCI9050_INTR_REG_EN1); /* mask irq */
byteout(card->iobase + PCI9050_INTR_REG, val);
@@ -147,14 +143,14 @@ ergo_stopcard(hysdn_card * card)
card->state = CARD_STATE_UNUSED;
card->err_log_state = ERRLOG_STATE_OFF; /* currently no log active */
- restore_flags(flags);
+ spin_unlock_irqrestore(&card->hysdn_lock, flags);
} /* ergo_stopcard */
/**************************************************************************/
/* enable or disable the cards error log. The event is queued if possible */
/**************************************************************************/
static void
-ergo_set_errlog_state(hysdn_card * card, int on)
+ergo_set_errlog_state(hysdn_card *card, int on)
{
unsigned long flags;
@@ -162,12 +158,11 @@ ergo_set_errlog_state(hysdn_card * card, int on)
card->err_log_state = ERRLOG_STATE_OFF; /* must be off */
return;
}
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&card->hysdn_lock, flags);
if (((card->err_log_state == ERRLOG_STATE_OFF) && !on) ||
((card->err_log_state == ERRLOG_STATE_ON) && on)) {
- restore_flags(flags);
+ spin_unlock_irqrestore(&card->hysdn_lock, flags);
return; /* nothing to do */
}
if (on)
@@ -175,7 +170,7 @@ ergo_set_errlog_state(hysdn_card * card, int on)
else
card->err_log_state = ERRLOG_STATE_STOP; /* request stop */
- restore_flags(flags);
+ spin_unlock_irqrestore(&card->hysdn_lock, flags);
schedule_work(&card->irq_queue);
} /* ergo_set_errlog_state */
@@ -185,7 +180,7 @@ ergo_set_errlog_state(hysdn_card * card, int on)
static const char TestText[36] = "This Message is filler, why read it";
static int
-ergo_testram(hysdn_card * card)
+ergo_testram(hysdn_card *card)
{
tErgDpram *dpr = card->dpram;
@@ -217,12 +212,12 @@ ergo_testram(hysdn_card * card)
/*****************************************************************************/
static int
ergo_writebootimg(struct HYSDN_CARD *card, unsigned char *buf,
- unsigned long offs)
+ unsigned long offs)
{
unsigned char *dst;
tErgDpram *dpram;
int cnt = (BOOT_IMG_SIZE >> 2); /* number of words to move and swap (byte order!) */
-
+
if (card->debug_flags & LOG_POF_CARD)
hysdn_addlog(card, "ERGO: write bootldr offs=0x%lx ", offs);
@@ -246,7 +241,6 @@ ergo_writebootimg(struct HYSDN_CARD *card, unsigned char *buf,
byteout(card->iobase + PCI9050_USER_IO, PCI9050_E1_RUN); /* start E1 processor */
/* the interrupts are still masked */
- sti();
msleep_interruptible(20); /* Timeout 20ms */
if (((tDpramBootSpooler *) card->dpram)->Len != DPRAM_SPOOLER_DATA_SIZE) {
@@ -280,7 +274,6 @@ ergo_writebootseq(struct HYSDN_CARD *card, unsigned char *buf, int len)
dst = sp->Data; /* point to data in spool structure */
buflen = sp->Len; /* maximum len of spooled data */
wr_mirror = sp->WrPtr; /* only once read */
- sti();
/* try until all bytes written or error */
i = 0x1000; /* timeout value */
@@ -356,36 +349,34 @@ ergo_waitpofready(struct HYSDN_CARD *card)
if (card->debug_flags & LOG_POF_RECORD)
hysdn_addlog(card, "ERGO: pof boot success");
- save_flags(flags);
- cli();
+ spin_lock_irqsave(&card->hysdn_lock, flags);
card->state = CARD_STATE_RUN; /* now card is running */
/* enable the cards interrupt */
byteout(card->iobase + PCI9050_INTR_REG,
bytein(card->iobase + PCI9050_INTR_REG) |
- (PCI9050_INTR_REG_ENPCI | PCI9050_INTR_REG_EN1));
+ (PCI9050_INTR_REG_ENPCI | PCI9050_INTR_REG_EN1));
card->irq_enabled = 1; /* we are ready to receive interrupts */
dpr->ToPcFlag = 0; /* reset data indicator */
dpr->ToHyInt = 1;
dpr->ToPcInt = 1; /* interrupt to E1 for all cards */
- restore_flags(flags);
- if ((hynet_enable & (1 << card->myid))
- && (i = hysdn_net_create(card)))
+ spin_unlock_irqrestore(&card->hysdn_lock, flags);
+ if ((hynet_enable & (1 << card->myid))
+ && (i = hysdn_net_create(card)))
{
ergo_stopcard(card);
card->state = CARD_STATE_BOOTERR;
return (i);
}
#ifdef CONFIG_HYSDN_CAPI
- if((i = hycapi_capi_create(card))) {
+ if ((i = hycapi_capi_create(card))) {
printk(KERN_WARNING "HYSDN: failed to create capi-interface.\n");
}
#endif /* CONFIG_HYSDN_CAPI */
return (0); /* success */
} /* data has arrived */
- sti();
msleep_interruptible(50); /* Timeout 50ms */
} /* wait until timeout */
@@ -402,13 +393,13 @@ ergo_waitpofready(struct HYSDN_CARD *card)
/* Use only during module release. */
/************************************************************************************/
static void
-ergo_releasehardware(hysdn_card * card)
+ergo_releasehardware(hysdn_card *card)
{
ergo_stopcard(card); /* first stop the card if not already done */
free_irq(card->irq, card); /* release interrupt */
release_region(card->iobase + PCI9050_INTR_REG, 1); /* release all io ports */
release_region(card->iobase + PCI9050_USER_IO, 1);
- vfree(card->dpram);
+ iounmap(card->dpram);
card->dpram = NULL; /* release shared mem */
} /* ergo_releasehardware */
@@ -419,9 +410,9 @@ ergo_releasehardware(hysdn_card * card)
/* Use only during module init. */
/*********************************************************************************/
int
-ergo_inithardware(hysdn_card * card)
+ergo_inithardware(hysdn_card *card)
{
- if (!request_region(card->iobase + PCI9050_INTR_REG, 1, "HYSDN"))
+ if (!request_region(card->iobase + PCI9050_INTR_REG, 1, "HYSDN"))
return (-1);
if (!request_region(card->iobase + PCI9050_USER_IO, 1, "HYSDN")) {
release_region(card->iobase + PCI9050_INTR_REG, 1);
@@ -447,7 +438,8 @@ ergo_inithardware(hysdn_card * card)
card->writebootseq = ergo_writebootseq;
card->waitpofready = ergo_waitpofready;
card->set_errlog_state = ergo_set_errlog_state;
- INIT_WORK(&card->irq_queue, (void *) (void *) ergo_irq_bh, card);
+ INIT_WORK(&card->irq_queue, ergo_irq_bh);
+ spin_lock_init(&card->hysdn_lock);
return (0);
} /* ergo_inithardware */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-07 15:47:08 +0000