void mcp2210_irq_do_gpio(struct mcp2210_device *dev, u16 old_val, u16 new_val)
{
uint i;
for (i = 0; i < MCP2210_NUM_PINS; ++i) {
struct mcp2210_pin_config *pin = &dev->config->pins[i];
int old_pin_val;
int new_pin_val;
int edge_mask, level_mask;
struct irq_desc *desc;
if (!pin->has_irq || pin->mode != MCP2210_PIN_GPIO)
continue;
old_pin_val = old_val & (1 << i);
new_pin_val = new_val & (1 << i);
level_mask = new_pin_val ? IRQ_TYPE_LEVEL_HIGH
: IRQ_TYPE_LEVEL_LOW;
desc = dev->irq_descs[pin->irq];
if (new_pin_val > old_val)
edge_mask = IRQ_TYPE_EDGE_RISING;
else if (new_pin_val < old_val)
edge_mask = IRQ_TYPE_EDGE_FALLING;
else
edge_mask = 0;
if (pin->irq_type & edge_mask) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)
handle_simple_irq(desc);
#else
handle_simple_irq(dev->irq_base + pin->irq, desc);
#endif
}
if (pin->irq_type & level_mask) {
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,3,0)
handle_level_irq(desc);
#else
handle_level_irq(dev->irq_base + pin->irq, desc);
#endif
}
}
}
static void se7722_irq_demux(unsigned int irq, struct irq_desc *desc)
{
unsigned short intv = ctrl_inw(IRQ01_STS);
struct irq_desc *ext_desc;
unsigned int ext_irq = SE7722_FPGA_IRQ_BASE;
intv &= (1 << SE7722_FPGA_IRQ_NR) - 1;
while (intv) {
if (intv & 1) {
ext_desc = irq_desc + ext_irq;
handle_level_irq(ext_irq, ext_desc);
}
intv >>= 1;
ext_irq++;
}
}
