_mali_osk_irq_t *_mali_osk_irq_init( u32 irqnum, _mali_osk_irq_uhandler_t uhandler, _mali_osk_irq_bhandler_t bhandler, _mali_osk_irq_trigger_t trigger_func, _mali_osk_irq_ack_t ack_func, void *data, const char *description )
{
mali_osk_irq_object_t *irq_object;
irq_object = kmalloc(sizeof(mali_osk_irq_object_t), GFP_KERNEL);
if (NULL == irq_object) return NULL;
/* workqueue API changed in 2.6.20, support both versions: */
#if defined(INIT_DELAYED_WORK)
/* New syntax: INIT_WORK( struct work_struct *work, void (*function)(struct work_struct *)) */
INIT_WORK( &irq_object->work_queue_irq_handle, irq_handler_bottom_half);
#else
/* Old syntax: INIT_WORK( struct work_struct *work, void (*function)(void *), void *data) */
INIT_WORK( &irq_object->work_queue_irq_handle, irq_handler_bottom_half, irq_object);
#endif /* defined(INIT_DELAYED_WORK) */
if (-1 == irqnum)
{
/* Probe for IRQ */
if ( (NULL != trigger_func) && (NULL != ack_func) )
{
unsigned long probe_count = 3;
_mali_osk_errcode_t err;
int irq;
MALI_DEBUG_PRINT(2, ("Probing for irq\n"));
do
{
unsigned long mask;
mask = probe_irq_on();
trigger_func(data);
_mali_osk_time_ubusydelay(5);
irq = probe_irq_off(mask);
err = ack_func(data);
}
while (irq < 0 && (err == _MALI_OSK_ERR_OK) && probe_count--);
if (irq < 0 || (_MALI_OSK_ERR_OK != err)) irqnum = -1;
else irqnum = irq;
}
else irqnum = -1; /* no probe functions, fault */
if (-1 != irqnum)
{
/* found an irq */
MALI_DEBUG_PRINT(2, ("Found irq %d\n", irqnum));
}
else
{
MALI_DEBUG_PRINT(2, ("Probe for irq failed\n"));
}
}
irq_object->irqnum = irqnum;
irq_object->uhandler = uhandler;
irq_object->bhandler = bhandler;
irq_object->data = data;
/* Is this a real IRQ handler we need? */
if (!mali_benchmark && irqnum != _MALI_OSK_IRQ_NUMBER_FAKE && irqnum != _MALI_OSK_IRQ_NUMBER_PMM)
{
if (-1 == irqnum)
{
MALI_DEBUG_PRINT(2, ("No IRQ for core '%s' found during probe\n", description));
kfree(irq_object);
return NULL;
}
if (0 != request_irq(irqnum, irq_handler_upper_half, IRQF_SHARED, description, irq_object))
{
MALI_DEBUG_PRINT(2, ("Unable to install IRQ handler for core '%s'\n", description));
kfree(irq_object);
return NULL;
}
}
if (mali_irq_wq == NULL)
{
mali_irq_wq = create_singlethread_workqueue("mali-pmm-wq");
}
return irq_object;
}
_mali_osk_irq_t *_mali_osk_irq_init(u32 irqnum, _mali_osk_irq_uhandler_t uhandler, void *int_data, _mali_osk_irq_trigger_t trigger_func, _mali_osk_irq_ack_t ack_func, void *probe_data, const char *description)
{
mali_osk_irq_object_t *irq_object;
unsigned long irq_flags = 0;
#if defined(CONFIG_MALI_SHARED_INTERRUPTS)
irq_flags |= IRQF_SHARED;
#endif /* defined(CONFIG_MALI_SHARED_INTERRUPTS) */
irq_object = kmalloc(sizeof(mali_osk_irq_object_t), GFP_KERNEL);
if (NULL == irq_object) {
return NULL;
}
if (-1 == irqnum) {
/* Probe for IRQ */
if ((NULL != trigger_func) && (NULL != ack_func)) {
unsigned long probe_count = 3;
_mali_osk_errcode_t err;
int irq;
MALI_DEBUG_PRINT(2, ("Probing for irq\n"));
do {
unsigned long mask;
mask = probe_irq_on();
trigger_func(probe_data);
_mali_osk_time_ubusydelay(5);
irq = probe_irq_off(mask);
err = ack_func(probe_data);
} while (irq < 0 && (err == _MALI_OSK_ERR_OK) && probe_count--);
if (irq < 0 || (_MALI_OSK_ERR_OK != err)) irqnum = -1;
else irqnum = irq;
} else irqnum = -1; /* no probe functions, fault */
if (-1 != irqnum) {
/* found an irq */
MALI_DEBUG_PRINT(2, ("Found irq %d\n", irqnum));
} else {
MALI_DEBUG_PRINT(2, ("Probe for irq failed\n"));
}
}
irq_object->irqnum = irqnum;
irq_object->uhandler = uhandler;
irq_object->data = int_data;
if (-1 == irqnum) {
MALI_DEBUG_PRINT(2, ("No IRQ for core '%s' found during probe\n", description));
kfree(irq_object);
return NULL;
}
#if defined(DEBUG)
/* Verify that the configured interrupt settings are working */
if (_MALI_OSK_ERR_OK != test_interrupt(irqnum, trigger_func, ack_func, probe_data, description)) {
MALI_DEBUG_PRINT(2, ("Test of IRQ handler for core '%s' failed\n", description));
kfree(irq_object);
return NULL;
}
#endif
if (0 != request_irq(irqnum, irq_handler_upper_half, irq_flags, description, irq_object)) {
MALI_DEBUG_PRINT(2, ("Unable to install IRQ handler for core '%s'\n", description));
kfree(irq_object);
return NULL;
}
return irq_object;
}
_mali_osk_irq_t *_mali_osk_irq_init( u32 irqnum, _mali_osk_irq_uhandler_t uhandler, void *int_data, _mali_osk_irq_trigger_t trigger_func, _mali_osk_irq_ack_t ack_func, void *probe_data, const char *description )
{
mali_osk_irq_object_t *irq_object;
irq_object = kmalloc(sizeof(mali_osk_irq_object_t), GFP_KERNEL);
if (NULL == irq_object)
{
return NULL;
}
if (-1 == irqnum)
{
/* Probe for IRQ */
if ( (NULL != trigger_func) && (NULL != ack_func) )
{
unsigned long probe_count = 3;
_mali_osk_errcode_t err;
int irq;
MALI_DEBUG_PRINT(2, ("Probing for irq\n"));
do
{
unsigned long mask;
mask = probe_irq_on();
trigger_func(probe_data);
_mali_osk_time_ubusydelay(5);
irq = probe_irq_off(mask);
err = ack_func(probe_data);
}
while (irq < 0 && (err == _MALI_OSK_ERR_OK) && probe_count--);
if (irq < 0 || (_MALI_OSK_ERR_OK != err)) irqnum = -1;
else irqnum = irq;
}
else irqnum = -1; /* no probe functions, fault */
if (-1 != irqnum)
{
/* found an irq */
MALI_DEBUG_PRINT(2, ("Found irq %d\n", irqnum));
}
else
{
MALI_DEBUG_PRINT(2, ("Probe for irq failed\n"));
}
}
irq_object->irqnum = irqnum;
irq_object->uhandler = uhandler;
irq_object->data = int_data;
if (-1 == irqnum)
{
MALI_DEBUG_PRINT(2, ("No IRQ for core '%s' found during probe\n", description));
kfree(irq_object);
return NULL;
}
if (0 != request_irq(irqnum, irq_handler_upper_half, IRQF_TRIGGER_LOW, description, irq_object))
{
MALI_DEBUG_PRINT(2, ("Unable to install IRQ handler for core '%s'\n", description));
kfree(irq_object);
return NULL;
}
return irq_object;
}