diff options
Diffstat (limited to 'arch/riscv32/soc/pulpino/pulpino_irq.c')
| -rw-r--r-- | arch/riscv32/soc/pulpino/pulpino_irq.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/arch/riscv32/soc/pulpino/pulpino_irq.c b/arch/riscv32/soc/pulpino/pulpino_irq.c new file mode 100644 index 000000000..c49c88de6 --- /dev/null +++ b/arch/riscv32/soc/pulpino/pulpino_irq.c @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2016 Jean-Paul Etienne <fractalclone@gmail.com> + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/** + * @file + * @brief pulpino interrupt management code + */ +#include <irq.h> +#include <soc.h> + +void _arch_irq_enable(unsigned int irq) +{ + int key; + + key = irq_lock(); + /* + * enable both IRQ and Event + * Event will allow system to wakeup upon an interrupt, + * if CPU was set to sleep + */ + PULP_IER |= (1 << irq); + PULP_EER |= (1 << irq); + irq_unlock(key); +}; + +void _arch_irq_disable(unsigned int irq) +{ + int key; + + key = irq_lock(); + PULP_IER &= ~(1 << irq); + PULP_EER &= ~(1 << irq); + irq_unlock(key); +}; + +int _arch_irq_is_enabled(unsigned int irq) +{ + return !!(PULP_IER & (1 << irq)); +} + +#if defined(CONFIG_RISCV_SOC_INTERRUPT_INIT) +void soc_interrupt_init(void) +{ + /* ensure that all interrupts are disabled */ + (void)irq_lock(); + PULP_IER = 0; + PULP_EER = 0; +} +#endif |