static int tvme200_request_irq(struct ipack_device *dev, irqreturn_t (*handler)(void *), void *arg)
{
int res = 0;
struct slot_irq *slot_irq;
struct tvme200_board *tvme200;
void *irq_reg;
tvme200 = check_slot(dev);
if (tvme200 == NULL)
return -EINVAL;
if (mutex_lock_interruptible(&tvme200->mutex))
return -ERESTARTSYS;
if (tvme200->slots[dev->slot].irq != NULL) {
dev_err(&dev->dev,
"Slot [%d:%d] IRQ already registered !\n",
dev->bus->bus_nr,
dev->slot);
res = -EINVAL;
goto out_unlock;
}
slot_irq = kzalloc(sizeof(struct slot_irq), GFP_KERNEL);
if (slot_irq == NULL) {
dev_err(&dev->dev,
"Slot [%d:%d] unable to allocate memory for IRQ !\n",
dev->bus->bus_nr, dev->slot);
res = -ENOMEM;
goto out_unlock;
}
/*
* WARNING: Setup Interrupt Vector in the IndustryPack device
* before an IRQ request.
* Read the User Manual of your IndustryPack device to know
* where to write the vector in memory.
*/
slot_irq->vector = irq[(4 * tvme200->number) + dev->slot];
slot_irq->handler = (int (*)(void *))(handler); /* FIXME: ugly casting, its ok? */
slot_irq->arg = arg;
slot_irq->holder = dev;
sprintf(slot_irq->name, "ipackdev_%d_%d", tvme200->lun, dev->slot);
rcu_assign_pointer(tvme200->slots[dev->slot].irq, slot_irq);
irq_reg = ioremap_nocache(tvme200->mod_mem[IPACK_INT_SPACE] +
TVME200_INT_SPACE_INTERVAL * dev->slot, TVME200_ID_SPACE_SIZE);
iowrite8(slot_irq->vector, irq_reg);
res = vme_request_irq(slot_irq->vector, slot_irq->handler, slot_irq->arg, slot_irq->name);
out_unlock:
mutex_unlock(&tvme200->mutex);
return res;
}
int register_isr(struct vmeio_device *dev, unsigned vector, unsigned level)
{
int err;
err = vme_request_irq(vector, (int (*)(void *)) vmeio_irq, dev, DRIVER_NAME);
dev->isrfl = !(err < 0);
printk(PFX "ISR:Level:0x%X Vector:0x%X:%s\n",
level, vector,
(err < 0) ? "ERROR:NotRegistered" : "OK:Registered");
return err;
}
/**
* @brief User entry point in driver/simulator installation routine.
*
* @param proceed -- if standard code execution should be proceed
* @param info -- driver info table
* @param sptr -- statics table
*
* It's up to user to set kernel-level errno (by means of @e pseterr call).
* @e proceed parameter denotes if further standard actions should be proceed
* after function returns. @b FALSE - means that user-desired operation done
* all that user wants and there is no further necessaty to perfom any standard
* operations that follow function call. @b TRUE - means that code that follows
* function call will be executed.
*
* @return return value is the same as in entry point function.\n
* pointer to a statics data structure - if succeed.\n
* SYSERR - in case of failure.
*/
char* GfaschannelUserInst(int *proceed, register DevInfo_t *info,
register GFASCHANNELStatics_t *sptr)
{
GFASCHANNELUserStatics_t *usp; /* user statistics table */
int iVec = 0; /* interrupt vector */
usp = sptr->usrst;
iVec = info->iVector; /* set up interrupt vector */
/* Uncomment the following code to register ISR */
#if 0
if (iVec > 0) {
int cc = 0; /* completion code */
kkprintf("ISR ( vector number [%d] ) installation - ", iVec);
#ifdef __Lynx__
#ifdef __powerpc__ /* in this case we are using CES BSP */
cc = vme_intset(iVec, (int (*)())GfaschannelISR,
(char*)sptr, 0);
#else /* use standard system call otherwise */
cc = iointset(iVec, (int (*)())GfaschannelISR, (char*)sptr);
#endif
#else /* __linux__ */
cc = vme_request_irq(iVec,
(int (*)(void *))GfaschannelISR,
(char *)sptr,
"GfaschannelD");
#endif /* __Lynx__ */
if (cc < 0) {
kkprintf("Failed.\n");
pseterr(EFAULT); /* TODO. what error to set? */
return (char*)SYSERR; /* -1 */
}
kkprintf("interrupt vector managed.\n");
}
#endif
if (proceed)
*proceed = TRUE; /* continue standard code execution */
return (char *)sptr; /* succeed */
}
int ctrirq_init(void)
{
int rc;
if ((rc = vme_find_mapping(&ctr_desc, 1)) != 0) {
printk(KERN_ERR PFX "Failed to map CTR_n");
return rc;
}
vmeaddr = ctr_desc.kernel_va;
mmap = (CtrDrvrMemoryMap *) vmeaddr;
ResetCtr();
EnableCtrModule();
if ((rc = vme_request_irq(CTR_IRQ_VECTOR, IntrHandler, &ctr_desc,
"ctrirq")) != 0) {
printk(KERN_ERR PFX "Failed to register interrupt handler\n");
goto out_unmap;
}
EnableCtrInterrupt();
show_ctr_info();
return 0;
out_unmap:
DisableCtrModule();
if (vme_release_mapping(&ctr_desc, 1) != 0)
printk(KERN_WARNING PFX "Failed to release mapping on error\n");
return rc;
}
/**
* @brief User entry point in driver/simulator installation routine.
*
* @param proceed -- if standard code execution should be proceed
* @param info -- driver info table
* @param sptr -- statics table
*
* It's up to user to set kernel-level errno (by means of @e pseterr call).
* @e proceed parameter denotes if further standard actions should be proceed
* after function returns. @b FALSE - means that user-desired operation done
* all that user wants and there is no further necessaty to perfom any standard
* operations that follow function call. @b TRUE - means that code that follows
* function call will be executed.
*
* @return return value is the same as in entry point function.\n
* pointer to a statics data structure - if succeed.\n
* SYSERR - in case of failure.
*/
char* CvorbUserInst(int *proceed, register DevInfo_t *info,
register CVORBStatics_t *sptr)
{
CVORBUserStatics_t *usp = sptr->usrst; /* user statistics table */
int iVec = 0; /* interrupt vector */
int m, c;
iVec = info->iVector; /* set up interrupt vector */
/* map submodule address pointers */
usp->md = (struct cvorb_module *)sysbrk(sizeof(_m));
usp->md[0].md = (mod *)sptr->card->block00;
usp->md[1].md = (mod *)((long)sptr->card->block00 + 0x200);
if (!firmware_ok(usp, info->mlun)) {
sysfree((char *)usp->md, sizeof(_m));
return (char *)SYSERR;
}
for (m = 0; m < SMAM; m++) {
/* reset subModules */
_wr(m, SOFT_PULSE, SPR_FGR);
/* initialize iolock mutex */
cdcm_mutex_init(&usp->md[m].iol);
/* set submodule channels addresses */
for (c = 0; c < CHAM; c++)
usp->md[m].cd[c] = (chd *)
((long)usp->md[m].md + _ch_offset[c]);
}
/* init on-board DAC */
ad9516o_init(usp);
/* disable on-board clock generator */
_wr(0, CLK_GEN_CNTL, AD9516_OFF);
/* set normal mode operation, enable all channels and
set recurrent cycles to 1 (i.e. play function once) */
enable_modules(usp);
/* Uncomment the following code to register ISR */
#if 0
if (iVec > 0) {
int cc = 0; /* completion code */
kkprintf("ISR ( vector number [%d] ) installation - ", iVec);
#ifdef __Lynx__
#ifdef __powerpc__ /* in this case we are using CES BSP */
cc = vme_intset(iVec, (int (*)())CvorbISR,
(char*)sptr, 0);
#else /* use standard system call otherwise */
cc = iointset(iVec, (int (*)())CvorbISR, (char*)sptr);
#endif
#else /* __linux__ */
cc = vme_request_irq(iVec,
(int (*)(void *))CvorbISR,
(char *)sptr,
"CvorbD");
#endif /* __Lynx__ */
if (cc < 0) {
kkprintf("Failed.\n");
pseterr(EFAULT); /* TODO. what error to set? */
return (char*)SYSERR; /* -1 */
}
kkprintf("interrupt vector managed.\n");
}
#endif
if (proceed)
*proceed = TRUE; /* continue standard code execution */
return (char *)sptr; /* succeed */
}