/***********************************************************************************************//** * \file cybsp.c * * Description: * Provides initialization code for starting up the hardware contained on the * Cypress board. * *************************************************************************************************** * \copyright * Copyright 2018-2021 Cypress Semiconductor Corporation * SPDX-License-Identifier: Apache-2.0 * * 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. **************************************************************************************************/ #include <stdlib.h> #include "cy_syspm.h" #include "cy_sysclk.h" #include "cybsp.h" #if defined(CY_USING_HAL) #include "cyhal_hwmgr.h" #include "cyhal_syspm.h" #endif #if !defined (CY_CFG_PWR_SYS_IDLE_MODE) && defined(__MBED__) #include "mbed_power_mgmt.h" #endif // Define the VDDA voltage - this is needed as 'Power' configuration is disabled // from design.modus for now. #ifndef CY_CFG_PWR_VDDA_MV #define CY_CFG_PWR_VDDA_MV (3300) #endif #if defined(__cplusplus) extern "C" { #endif // The sysclk deep sleep callback is recommended to be the last callback that is executed before // entry into deep sleep mode and the first one upon exit the deep sleep mode. // Doing so minimizes the time spent on low power mode entry and exit. #ifndef CYBSP_SYSCLK_PM_CALLBACK_ORDER #define CYBSP_SYSCLK_PM_CALLBACK_ORDER (255u) #endif #if defined(CYBSP_WIFI_CAPABLE) && defined(CY_USING_HAL) static cyhal_sdio_t sdio_obj; //-------------------------------------------------------------------------------------------------- // cybsp_get_wifi_sdio_obj //-------------------------------------------------------------------------------------------------- cyhal_sdio_t* cybsp_get_wifi_sdio_obj(void) { return &sdio_obj; } #endif // if defined(CYBSP_WIFI_CAPABLE) && defined(CY_USING_HAL) //-------------------------------------------------------------------------------------------------- // cybsp_register_sysclk_pm_callback // // Registers a power management callback that prepares the clock system for entering deep sleep mode // and restore the clocks upon wakeup from deep sleep. // NOTE: This is called automatically as part of \ref cybsp_init //-------------------------------------------------------------------------------------------------- static cy_rslt_t cybsp_register_sysclk_pm_callback(void) { cy_rslt_t result = CY_RSLT_SUCCESS; static cy_stc_syspm_callback_params_t cybsp_sysclk_pm_callback_param = { NULL, NULL }; static cy_stc_syspm_callback_t cybsp_sysclk_pm_callback = { .callback = &Cy_SysClk_DeepSleepCallback, .type = CY_SYSPM_DEEPSLEEP, .callbackParams = &cybsp_sysclk_pm_callback_param, .order = CYBSP_SYSCLK_PM_CALLBACK_ORDER }; if (!Cy_SysPm_RegisterCallback(&cybsp_sysclk_pm_callback)) { result = CYBSP_RSLT_ERR_SYSCLK_PM_CALLBACK; } return result; } //-------------------------------------------------------------------------------------------------- // cybsp_init //-------------------------------------------------------------------------------------------------- cy_rslt_t cybsp_init(void) { // Setup hardware manager to track resource usage then initialize all system (clock/power) board // configuration #if defined(CY_USING_HAL) cy_rslt_t result = cyhal_hwmgr_init(); if (CY_RSLT_SUCCESS == result) { result = cyhal_syspm_init(); } #ifdef CY_CFG_PWR_VDDA_MV if (CY_RSLT_SUCCESS == result) { cyhal_syspm_set_supply_voltage(CYHAL_VOLTAGE_SUPPLY_VDDA, CY_CFG_PWR_VDDA_MV); } #endif #else // if defined(CY_USING_HAL) cy_rslt_t result = CY_RSLT_SUCCESS; #endif // if defined(CY_USING_HAL) #if defined(COMPONENT_BSP_DESIGN_MODUS) || defined(COMPONENT_CUSTOM_DESIGN_MODUS) init_cycfg_all(); #endif if (CY_RSLT_SUCCESS == result) { result = cybsp_register_sysclk_pm_callback(); } #if !defined(CY_CFG_PWR_SYS_IDLE_MODE) #ifdef __MBED__ // Disable deep-sleep sleep_manager_lock_deep_sleep(); #else cyhal_syspm_lock_deepsleep(); #endif #endif // Reserve clock dividers used by NP cyhal_clock_divider_t clock1; cyhal_hwmgr_allocate_clock(&clock1, CY_SYSCLK_DIV_16_BIT, true); cyhal_clock_divider_t clock2; cyhal_hwmgr_allocate_clock(&clock2, CY_SYSCLK_DIV_16_BIT, true); // CYHAL_HWMGR_RSLT_ERR_INUSE error code could be returned if any needed for BSP resource was // reserved by user previously. Please review the Device Configurator (design.modus) and the BSP // reservation list (cyreservedresources.list) to make sure no resources are reserved by both. return result; } #if defined(__cplusplus) } #endif