| Rajavardhan Gundi | 74016bb | 2017-10-11 22:36:20 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2017 Intel corporation |
| 3 | * |
| 4 | * SPDX-License-Identifier: Apache-2.0 |
| 5 | */ |
| 6 | |
| 7 | /** |
| 8 | * @file |
| 9 | * @brief Public interface for configuring interrupts |
| 10 | */ |
| 11 | #ifndef _IRQ_NEXTLEVEL_H_ |
| 12 | #define _IRQ_NEXTLEVEL_H_ |
| 13 | |
| 14 | #ifdef __cplusplus |
| 15 | extern "C" { |
| 16 | #endif |
| 17 | |
| 18 | /** |
| 19 | * @cond INTERNAL_HIDDEN |
| 20 | * |
| 21 | * These are for internal use only, so skip these in |
| 22 | * public documentation. |
| 23 | */ |
| 24 | typedef void (*irq_next_level_func_t)(struct device *dev, unsigned int irq); |
| 25 | typedef unsigned int (*irq_next_level_get_state_t)(struct device *dev); |
| 26 | |
| 27 | struct irq_next_level_api { |
| 28 | irq_next_level_func_t intr_enable; |
| 29 | irq_next_level_func_t intr_disable; |
| 30 | irq_next_level_get_state_t intr_get_state; |
| 31 | }; |
| 32 | /** |
| 33 | * @endcond |
| 34 | */ |
| 35 | |
| 36 | /** |
| 37 | * @brief Enable an IRQ in the next level. |
| 38 | * |
| 39 | * This routine enables interrupts present in the interrupt controller. |
| 40 | * |
| 41 | * @param dev Pointer to the device structure for the driver instance. |
| 42 | * @param irq IRQ to be enabled. |
| 43 | * |
| 44 | * @return N/A |
| 45 | */ |
| 46 | static inline void irq_enable_next_level(struct device *dev, u32_t irq) |
| 47 | { |
| 48 | const struct irq_next_level_api *api = dev->driver_api; |
| 49 | |
| 50 | api->intr_enable(dev, irq); |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * @brief Disable an IRQ in the next level. |
| 55 | * |
| 56 | * This routine disables interrupts present in the interrupt controller. |
| 57 | * |
| 58 | * @param dev Pointer to the device structure for the driver instance. |
| 59 | * @param irq IRQ to be disabled. |
| 60 | * |
| 61 | * @return N/A |
| 62 | */ |
| 63 | static inline void irq_disable_next_level(struct device *dev, u32_t irq) |
| 64 | { |
| 65 | const struct irq_next_level_api *api = dev->driver_api; |
| 66 | |
| 67 | api->intr_disable(dev, irq); |
| 68 | } |
| 69 | |
| 70 | /** |
| 71 | * @brief Get IRQ enable state. |
| 72 | * |
| 73 | * This routine indicates if any interrupts are enabled in the interrupt |
| 74 | * controller. |
| 75 | * |
| 76 | * @param dev Pointer to the device structure for the driver instance. |
| 77 | * |
| 78 | * @return interrupt enable state, true or false |
| 79 | */ |
| 80 | static inline unsigned int irq_is_enabled_next_level(struct device *dev) |
| 81 | { |
| 82 | const struct irq_next_level_api *api = dev->driver_api; |
| 83 | |
| 84 | return api->intr_get_state(dev); |
| 85 | } |
| 86 | |
| 87 | /** |
| 88 | * @} |
| 89 | */ |
| 90 | |
| 91 | #ifdef __cplusplus |
| 92 | } |
| 93 | #endif |
| 94 | |
| 95 | #endif /* _IRQ_NEXTLEVEL_H_ */ |
