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drivers/interrupt_controller: dw_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
parent 958f2d5295
commit 635aadc9a9
1 changed files with 23 additions and 0 deletions
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23
drivers/interrupt_controller/dw_ictl.c
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@ -113,6 +113,28 @@ static inline unsigned int dw_ictl_intr_get_state(struct device *dev)
return 0;
}
static int dw_ictl_intr_get_line_state(struct device *dev, unsigned int irq)
{
struct dw_ictl_runtime *context = dev->driver_data;
const struct dw_ictl_config *config = dev->config->config_info;
volatile struct dw_ictl_registers * const regs =
(struct dw_ictl_registers *)context->base_addr;
if (config->numirqs > 32) {
if ((regs->irq_inten_h & BIT(irq - 32)) != 0) {
return 1;
}
} else {
if ((regs->irq_inten_l & BIT(irq)) != 0) {
return 1;
}
}
return 0;
}
static void dw_ictl_config_irq(struct device *port);
static const struct dw_ictl_config dw_config = {
@ -130,6 +152,7 @@ static const struct irq_next_level_api dw_ictl_apis = {
.intr_enable = dw_ictl_intr_enable,
.intr_disable = dw_ictl_intr_disable,
.intr_get_state = dw_ictl_intr_get_state,
.intr_get_line_state = dw_ictl_intr_get_line_state,
};
DEVICE_AND_API_INIT(dw_ictl, CONFIG_DW_ICTL_NAME, dw_ictl_initialize,