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75 lines
3.1 KiB
C
75 lines
3.1 KiB
C
// Copyright 2015-2018 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include "esp_attr.h"
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#include "soc/soc_caps.h"
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#include "hal/cpu_hal.h"
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#include "sdkconfig.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern bool g_spiram_ok; // [refactor-todo] better way to communicate this from port layer to common startup code
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// Port layer defines the entry point. It then transfer control to a `sys_startup_fn_t`, stored in this
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// array, one per core.
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typedef void (*sys_startup_fn_t)(void);
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/* This array of per-CPU system layer startup functions is initialized in the non-port part of esp_system */
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#if !CONFIG_ESP_SYSTEM_SINGLE_CORE_MODE
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extern sys_startup_fn_t const g_startup_fn[SOC_CPU_CORES_NUM];
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#else
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extern sys_startup_fn_t const g_startup_fn[1];
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#endif
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// Utility to execute `sys_startup_fn_t` for the current core.
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#define SYS_STARTUP_FN() ((*g_startup_fn[(cpu_hal_get_core_id())])())
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#if !CONFIG_ESP_SYSTEM_SINGLE_CORE_MODE
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void startup_resume_other_cores(void);
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#endif
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typedef struct {
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void (*fn)(void);
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uint32_t cores;
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} esp_system_init_fn_t;
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/*
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* Declare an component initialization function that will execute on the specified cores (ex. if BIT0 == 1, will execute
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* on CORE0, CORE1 if BIT1 and so on).
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*
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* @note Initialization functions should be placed in a compilation unit where at least one other
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* symbol is referenced 'meaningfully' in another compilation unit, otherwise this gets discarded during linking. (By
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* 'meaningfully' we mean the reference should not itself get optimized out by the compiler/discarded by the linker).
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*/
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#define ESP_SYSTEM_INIT_FN(f, c, ...) \
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static void __attribute__((used)) __VA_ARGS__ __esp_system_init_fn_##f(void); \
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static __attribute__((used)) esp_system_init_fn_t _SECTION_ATTR_IMPL(".esp_system_init_fn", f) \
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esp_system_init_fn_##f = { .fn = ( __esp_system_init_fn_##f), .cores = (c) }; \
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static __attribute__((used)) __VA_ARGS__ void __esp_system_init_fn_##f(void) // [refactor-todo] this can be made public API if we allow components to declare init functions,
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// instead of calling them explicitly
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extern uint64_t g_startup_time; // Startup time that serves as the point of origin for system time. Should be set by the entry
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// function in the port layer. May be 0 as well if this is not backed by a persistent counter, in which case
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// startup time = system time = 0 at the point the entry function sets this variable.
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#ifdef __cplusplus
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}
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#endif
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