kopia lustrzana https://github.com/micropython/micropython
108 wiersze
3.5 KiB
C
108 wiersze
3.5 KiB
C
/*
|
|
* This file is part of the MicroPython project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2023 Arduino SA
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*
|
|
* libmetal stm32 port.
|
|
*/
|
|
|
|
#include "py/mperrno.h"
|
|
#include "py/mphal.h"
|
|
|
|
#include "mpu.h"
|
|
|
|
#include "metal/sys.h"
|
|
#include "metal/utilities.h"
|
|
#include "metal/device.h"
|
|
|
|
struct metal_state _metal;
|
|
static mp_sched_node_t rproc_notify_node;
|
|
|
|
int metal_sys_init(const struct metal_init_params *params) {
|
|
metal_unused(params);
|
|
|
|
// Clear HSEM pending IRQ.
|
|
HSEM_COMMON->ICR |= (uint32_t)__HAL_HSEM_SEMID_TO_MASK(METAL_HSEM_MASTER_ID);
|
|
HAL_NVIC_ClearPendingIRQ(HSEM1_IRQn);
|
|
|
|
// Enable and configure HSEM.
|
|
__HAL_RCC_HSEM_CLK_ENABLE();
|
|
NVIC_SetPriority(HSEM1_IRQn, IRQ_PRI_HSEM);
|
|
HAL_NVIC_EnableIRQ(HSEM1_IRQn);
|
|
HAL_HSEM_ActivateNotification(__HAL_HSEM_SEMID_TO_MASK(METAL_HSEM_MASTER_ID));
|
|
|
|
#ifndef VIRTIO_USE_DCACHE
|
|
// If cache management is not enabled, configure the MPU to disable caching
|
|
// for the entire shared memory region.
|
|
uint32_t irq_state = mpu_config_start();
|
|
mpu_config_region(MPU_REGION_OPENAMP, METAL_MPU_REGION_BASE, MPU_CONFIG_SHARED_UNCACHED(METAL_MPU_REGION_SIZE));
|
|
mpu_config_end(irq_state);
|
|
#endif
|
|
|
|
metal_bus_register(&metal_generic_bus);
|
|
return 0;
|
|
}
|
|
|
|
void metal_sys_finish(void) {
|
|
HAL_NVIC_DisableIRQ(HSEM1_IRQn);
|
|
HAL_HSEM_DeactivateNotification(__HAL_HSEM_SEMID_TO_MASK(METAL_HSEM_MASTER_ID));
|
|
__HAL_RCC_HSEM_CLK_DISABLE();
|
|
metal_bus_unregister(&metal_generic_bus);
|
|
}
|
|
|
|
unsigned int sys_irq_save_disable(void) {
|
|
return disable_irq();
|
|
}
|
|
|
|
void sys_irq_restore_enable(unsigned int state) {
|
|
enable_irq(state);
|
|
}
|
|
|
|
void *metal_machine_io_mem_map(void *va, metal_phys_addr_t pa,
|
|
size_t size, unsigned int flags) {
|
|
metal_unused(pa);
|
|
metal_unused(size);
|
|
metal_unused(flags);
|
|
return va;
|
|
}
|
|
|
|
void metal_machine_cache_flush(void *addr, unsigned int len) {
|
|
SCB_CleanDCache_by_Addr(addr, len);
|
|
}
|
|
|
|
void metal_machine_cache_invalidate(void *addr, unsigned int len) {
|
|
SCB_InvalidateDCache_by_Addr(addr, len);
|
|
}
|
|
|
|
int metal_rproc_notify(void *priv, uint32_t id) {
|
|
HAL_HSEM_FastTake(METAL_HSEM_REMOTE_ID);
|
|
HAL_HSEM_Release(METAL_HSEM_REMOTE_ID, 0);
|
|
return 0;
|
|
}
|
|
|
|
void HSEM1_IRQHandler(void) {
|
|
HAL_HSEM_IRQHandler();
|
|
mp_sched_schedule_node(&rproc_notify_node, openamp_remoteproc_notified);
|
|
HAL_HSEM_ActivateNotification(__HAL_HSEM_SEMID_TO_MASK(METAL_HSEM_MASTER_ID));
|
|
}
|