static int intc_set_type(struct irq_data *data, unsigned int type)
{
unsigned int irq = data->irq;
struct intc_desc_int *d = get_intc_desc(irq);
unsigned char value = intc_irq_sense_table[type & IRQ_TYPE_SENSE_MASK];
struct intc_handle_int *ihp;
unsigned long addr;
if (!value)
return -EINVAL;
value &= ~SENSE_VALID_FLAG;
ihp = intc_find_irq(d->sense, d->nr_sense, irq);
if (ihp) {
/* PINT has 2-bit sense registers, should fail on EDGE_BOTH */
if (value >= (1 << _INTC_WIDTH(ihp->handle)))
return -EINVAL;
addr = INTC_REG(d, _INTC_ADDR_E(ihp->handle), 0);
intc_reg_fns[_INTC_FN(ihp->handle)](addr, ihp->handle, value);
}
return 0;
}
int intc_set_priority(unsigned int irq, unsigned int prio)
{
struct intc_desc_int *d = get_intc_desc(irq);
struct irq_data *data = irq_get_irq_data(irq);
struct intc_handle_int *ihp;
if (!intc_get_prio_level(irq) || prio <= 1)
return -EINVAL;
ihp = intc_find_irq(d->prio, d->nr_prio, irq);
if (ihp) {
if (prio >= (1 << _INTC_WIDTH(ihp->handle)))
return -EINVAL;
intc_set_prio_level(irq, prio);
/*
* only set secondary masking method directly
* primary masking method is using intc_prio_level[irq]
* priority level will be set during next enable()
*/
if (_INTC_FN(ihp->handle) != REG_FN_ERR)
_intc_enable(data, ihp->handle);
}
return 0;
}
unsigned long intc_get_field_from_handle(unsigned int value, unsigned int handle)
{
unsigned int width = _INTC_WIDTH(handle);
unsigned int shift = _INTC_SHIFT(handle);
unsigned int mask = ((1 << width) - 1) << shift;
return (value & mask) >> shift;
}
static unsigned long intc_mode_field(unsigned long addr,
unsigned long handle,
unsigned long (*fn)(unsigned long,
unsigned long,
unsigned long),
unsigned int irq)
{
return fn(addr, handle, ((1 << _INTC_WIDTH(handle)) - 1));
}
unsigned int intc_set_field_from_handle(unsigned int value,
unsigned int field_value,
unsigned int handle)
{
unsigned int width = _INTC_WIDTH(handle);
unsigned int shift = _INTC_SHIFT(handle);
value &= ~(((1 << width) - 1) << shift);
value |= field_value << shift;
return value;
}
int intc_set_priority(unsigned int irq, unsigned int prio)
{
struct intc_desc_int *d = get_intc_desc(irq);
struct irq_data *data = irq_get_irq_data(irq);
struct intc_handle_int *ihp;
if (!intc_get_prio_level(irq) || prio <= 1)
return -EINVAL;
ihp = intc_find_irq(d->prio, d->nr_prio, irq);
if (ihp) {
if (prio >= (1 << _INTC_WIDTH(ihp->handle)))
return -EINVAL;
intc_set_prio_level(irq, prio);
if (_INTC_FN(ihp->handle) != REG_FN_ERR)
_intc_enable(data, ihp->handle);
}
return 0;
}
