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drivers/interrupt_controller: cavs_ictl: add get_line_state()

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This implements the new API to query whether a particular IRQ
line is enabled.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung 2019-08-27 11:07:19 -07:00 • committed by Anas Nashif
commit 958f2d5295
1 changed files with 15 additions and 0 deletions
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15
drivers/interrupt_controller/cavs_ictl.c
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@ -75,10 +75,25 @@ static inline unsigned int cavs_ictl_irq_get_state(struct device *dev)
return 1;
}
static int cavs_ictl_irq_get_line_state(struct device *dev, unsigned int irq)
{
struct cavs_ictl_runtime *context = dev->driver_data;
volatile struct cavs_registers * const regs =
(struct cavs_registers *)context->base_addr;
if ((regs->disable_state_il & BIT(irq)) == 0) {
return 1;
}
return 0;
}
static const struct irq_next_level_api cavs_apis = {
.intr_enable = cavs_ictl_irq_enable,
.intr_disable = cavs_ictl_irq_disable,
.intr_get_state = cavs_ictl_irq_get_state,
.intr_get_line_state = cavs_ictl_irq_get_line_state,
};
static int cavs_ictl_0_initialize(struct device *port)