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[EFR32]Wi-Fi MG24-WF200 Pin Multiplexing and OTA Update support (#23830)
* WF200 SPI multiplexing for LCD,EXT flash and EXP Header changes * Restyled by whitespace * Restyled by clang-format * Adding License for header file Co-authored-by: Restyled.io <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,165 @@ | ||
| /* | ||
| * | ||
| * Copyright (c) 2022 Project CHIP Authors | ||
| * | ||
| * 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 "spi_multiplex.h" | ||
| #include "dmadrv.h" | ||
| #include "em_bus.h" | ||
| #include "em_cmu.h" | ||
| #include "em_gpio.h" | ||
| #include "em_ldma.h" | ||
| #include "em_usart.h" | ||
|
|
||
| /**************************************************************************** | ||
| * @fn void spi_drv_reinit() | ||
| * @brief | ||
| * Re-Intializes SPI driver to required baudrate | ||
| * @param[in] None | ||
| * @return returns void | ||
| *****************************************************************************/ | ||
| void spi_drv_reinit(uint32_t baudrate) | ||
| { | ||
| // USART is used in MG24 + WF200 combination | ||
| USART_InitSync_TypeDef usartInit = USART_INITSYNC_DEFAULT; | ||
| usartInit.msbf = true; | ||
| usartInit.clockMode = usartClockMode0; | ||
| usartInit.baudrate = baudrate; | ||
| uint32_t databits = SL_SPIDRV_EXP_FRAME_LENGTH - 4U + _USART_FRAME_DATABITS_FOUR; | ||
| usartInit.databits = (USART_Databits_TypeDef) databits; | ||
| usartInit.autoCsEnable = true; | ||
|
|
||
| USART_InitSync(USART0, &usartInit); | ||
| } | ||
|
|
||
| /**************************************************************************** | ||
| * @fn void set_spi_baudrate() | ||
| * @brief | ||
| * Setting the appropriate SPI baudrate | ||
| * @param[in] None | ||
| * @return returns void | ||
| *****************************************************************************/ | ||
| void set_spi_baudrate(peripheraltype_t pr_type) | ||
| { | ||
| if (pr_type == LCD) | ||
| { | ||
| spi_drv_reinit(LCD_BIT_RATE); | ||
| } | ||
| else if (pr_type == EXP_HDR) | ||
| { | ||
| spi_drv_reinit(EXP_HDR_BIT_RATE); | ||
| } | ||
| else if (pr_type == EXT_SPIFLASH) | ||
| { | ||
| spi_drv_reinit(SPI_FLASH_BIT_RATE); | ||
| } | ||
| } | ||
|
|
||
| /**************************************************************************** | ||
| * @fn void spiflash_cs_assert() | ||
| * @brief | ||
| * Assert SPI flash chip select. | ||
| * @param[in] None | ||
| * @return returns void | ||
| *****************************************************************************/ | ||
| void spiflash_cs_assert(void) | ||
| { | ||
| GPIO_PinOutClear(SL_MX25_FLASH_SHUTDOWN_CS_PORT, SL_MX25_FLASH_SHUTDOWN_CS_PIN); | ||
| } | ||
|
|
||
| /**************************************************************************** | ||
| * @fn void spiflash_cs_deassert() | ||
| * @brief | ||
| * De-Assert SPI flash chip select. | ||
| * @param[in] None | ||
| * @return returns void | ||
| *****************************************************************************/ | ||
| void spiflash_cs_deassert(void) | ||
| { | ||
| GPIO_PinOutSet(SL_MX25_FLASH_SHUTDOWN_CS_PORT, SL_MX25_FLASH_SHUTDOWN_CS_PIN); | ||
| } | ||
|
|
||
| /**************************************************************************** | ||
| * @fn void pre_bootloader_spi_transfer() | ||
| * @brief | ||
| * Take a semaphore and controlling CS pin for EXP header and SPI flash | ||
| * @param[in] None | ||
| * @return returns void | ||
| *****************************************************************************/ | ||
| void pre_bootloader_spi_transfer(void) | ||
| { | ||
| if (xSemaphoreTake(spi_sem_sync_hdl, portMAX_DELAY) != pdTRUE) | ||
| { | ||
| return; | ||
| } | ||
| /* | ||
| * CS for Expansion header controlled within GSDK, | ||
| * however we need to ensure CS for Expansion header is High/disabled before use of EXT SPI Flash | ||
| */ | ||
| sl_wfx_host_spi_cs_deassert(); | ||
| /* | ||
| * Assert CS pin for EXT SPI Flash | ||
| */ | ||
| spiflash_cs_assert(); | ||
| } | ||
|
|
||
| /**************************************************************************** | ||
| * @fn void post_bootloader_spi_transfer() | ||
| * @brief | ||
| * De-Assert EXT SPI flash CS pin and release semaphore | ||
| * @param[in] None | ||
| * @return returns void | ||
| *****************************************************************************/ | ||
| void post_bootloader_spi_transfer(void) | ||
| { | ||
| /* | ||
| * De-Assert CS pin for EXT SPI Flash | ||
| */ | ||
| spiflash_cs_deassert(); | ||
| xSemaphoreGive(spi_sem_sync_hdl); | ||
| } | ||
|
|
||
| /**************************************************************************** | ||
| * @fn void pre_lcd_spi_transfer() | ||
| * @brief | ||
| * Take a semaphore and setting LCD baudrate | ||
| * @param[in] None | ||
| * @return returns void | ||
| *****************************************************************************/ | ||
| void pre_lcd_spi_transfer(void) | ||
| { | ||
| if (xSemaphoreTake(spi_sem_sync_hdl, portMAX_DELAY) != pdTRUE) | ||
| { | ||
| return; | ||
| } | ||
| if (pr_type != LCD) | ||
| { | ||
| pr_type = LCD; | ||
| set_spi_baudrate(pr_type); | ||
| } | ||
| /*LCD CS is handled as part of LCD gsdk*/ | ||
| } | ||
|
|
||
| /**************************************************************************** | ||
| * @fn void post_lcd_spi_transfer() | ||
| * @brief | ||
| * Release semaphore | ||
| * @param[in] None | ||
| * @return returns void | ||
| *****************************************************************************/ | ||
| void post_lcd_spi_transfer(void) | ||
| { | ||
| xSemaphoreGive(spi_sem_sync_hdl); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| /* | ||
| * | ||
| * Copyright (c) 2022 Project CHIP Authors | ||
| * | ||
| * 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. | ||
| */ | ||
|
|
||
| #pragma once | ||
|
|
||
| #ifdef __cplusplus | ||
| extern "C" { | ||
| #endif | ||
| #include "FreeRTOS.h" | ||
| #include "semphr.h" | ||
| #include "sl_mx25_flash_shutdown_usart_config.h" | ||
| #include "sl_spidrv_exp_config.h" | ||
| #include "sl_wfx_host_api.h" | ||
|
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| #define LCD_BIT_RATE 1100000 | ||
| #define EXP_HDR_BIT_RATE 16000000 | ||
| #define SPI_FLASH_BIT_RATE 16000000 | ||
|
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| typedef enum PERIPHERAL_TYPE | ||
| { | ||
| EXP_HDR = 0, | ||
| LCD, | ||
| EXT_SPIFLASH, | ||
| } peripheraltype_t; | ||
|
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| extern SemaphoreHandle_t spi_sem_sync_hdl; | ||
| extern peripheraltype_t pr_type; | ||
|
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| void spi_drv_reinit(uint32_t); | ||
| void set_spi_baudrate(peripheraltype_t); | ||
|
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| void spiflash_cs_assert(void); | ||
| void spiflash_cs_deassert(void); | ||
|
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| void pre_bootloader_spi_transfer(void); | ||
| void post_bootloader_spi_transfer(void); | ||
|
|
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| void pre_lcd_spi_transfer(void); | ||
| void post_lcd_spi_transfer(void); | ||
|
|
||
| #ifdef __cplusplus | ||
| } | ||
| #endif |
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