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pikapython/package/STM32/pika_hal_stm32_UART.c
lyon eeeb164588 support channel select for STM32H7
2023-09-20 16:23:33 +08:00

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#include "pika_hal_stm32_common.h"
#include <ctype.h>
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
* Copyright (c) 2023-2023, PikaPython Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-10-30 SummerGift first version
* 2020-03-16 SummerGift add device close feature
* 2020-03-20 SummerGift fix bug caused by ORE
* 2020-05-02 whj4674672 support stm32h7 uart dma
* 2020-09-09 forest-rain support stm32wl uart
* 2020-10-14 Dozingfiretruck Porting for stm32wbxx
* 2023-08-22 lyon port for PikaPython
*/
#ifndef PIKA_HAL
#include "board.h"
#include "drv_usart.h"
#endif
#ifdef PIKA_HAL
#include "pika_drv_config.h"
#else
#include "drv_config.h"
#endif
// #ifdef RT_USING_SERIAL
#ifndef PIKA_HAL
//#define DRV_DEBUG
#define LOG_TAG "drv.usart"
#include <drv_log.h>
#endif
#if !defined(BSP_USING_UART1) && !defined(BSP_USING_UART2) && !defined(BSP_USING_UART3) && \
!defined(BSP_USING_UART4) && !defined(BSP_USING_UART5) && !defined(BSP_USING_UART6) && \
!defined(BSP_USING_UART7) && !defined(BSP_USING_UART8) && !defined(BSP_USING_LPUART1)
#error "Please define at least one BSP_USING_UARTx"
/* this driver can be disabled at menuconfig -> RT-Thread Components -> Device Drivers */
#endif
#ifdef RT_SERIAL_USING_DMA
static void stm32_dma_config(struct rt_serial_device *serial, rt_ubase_t flag);
#endif
static int rt_hw_usart_init(void);
#if defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WL) \
|| defined(SOC_SERIES_STM32L0) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32G4) || defined(SOC_SERIES_STM32WB)|| defined(SOC_SERIES_STM32F3)
#define DMA_INSTANCE_TYPE DMA_Channel_TypeDef
#elif defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) \
|| defined(SOC_SERIES_STM32H7) || defined(SOC_SERIES_STM32MP1)
#define DMA_INSTANCE_TYPE DMA_Stream_TypeDef
#endif /* defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WL) */
#if defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32L5) || defined(SOC_SERIES_STM32WL) \
|| defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32L0) || defined(SOC_SERIES_STM32G0) \
|| defined(SOC_SERIES_STM32G4) || defined(SOC_SERIES_STM32WB)|| defined(SOC_SERIES_STM32F3) || defined(SOC_SERIES_STM32U5)
#define UART_INSTANCE_CLEAR_FUNCTION __HAL_UART_CLEAR_FLAG
#elif defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32H7) \
|| defined(SOC_SERIES_STM32MP1)
#define UART_INSTANCE_CLEAR_FUNCTION __HAL_UART_CLEAR_IT
#endif
#define BAUD_RATE_2400 2400
#define BAUD_RATE_4800 4800
#define BAUD_RATE_9600 9600
#define BAUD_RATE_19200 19200
#define BAUD_RATE_38400 38400
#define BAUD_RATE_57600 57600
#define BAUD_RATE_115200 115200
#define BAUD_RATE_230400 230400
#define BAUD_RATE_460800 460800
#define BAUD_RATE_500000 500000
#define BAUD_RATE_921600 921600
#define BAUD_RATE_2000000 2000000
#define BAUD_RATE_2500000 2500000
#define BAUD_RATE_3000000 3000000
#define DATA_BITS_5 5
#define DATA_BITS_6 6
#define DATA_BITS_7 7
#define DATA_BITS_8 8
#define DATA_BITS_9 9
#define STOP_BITS_1 0
#define STOP_BITS_2 1
#define STOP_BITS_3 2
#define STOP_BITS_4 3
#ifdef _WIN32
#include <windows.h>
#else
#define PARITY_NONE 0
#define PARITY_ODD 1
#define PARITY_EVEN 2
#endif
#define BIT_ORDER_LSB 0
#define BIT_ORDER_MSB 1
#define NRZ_NORMAL 0 /* Non Return to Zero : normal mode */
#define NRZ_INVERTED 1 /* Non Return to Zero : inverted mode */
#ifndef RT_SERIAL_RB_BUFSZ
#define RT_SERIAL_RB_BUFSZ 64
#endif
#define RT_SERIAL_EVENT_RX_IND 0x01 /* Rx indication */
#define RT_SERIAL_EVENT_TX_DONE 0x02 /* Tx complete */
#define RT_SERIAL_EVENT_RX_DMADONE 0x03 /* Rx DMA transfer done */
#define RT_SERIAL_EVENT_TX_DMADONE 0x04 /* Tx DMA transfer done */
#define RT_SERIAL_EVENT_RX_TIMEOUT 0x05 /* Rx timeout */
#define RT_SERIAL_DMA_RX 0x01
#define RT_SERIAL_DMA_TX 0x02
#define RT_SERIAL_RX_INT 0x01
#define RT_SERIAL_TX_INT 0x02
#define RT_SERIAL_ERR_OVERRUN 0x01
#define RT_SERIAL_ERR_FRAMING 0x02
#define RT_SERIAL_ERR_PARITY 0x03
#define RT_SERIAL_TX_DATAQUEUE_SIZE 2048
#define RT_SERIAL_TX_DATAQUEUE_LWM 30
#define RT_SERIAL_FLOWCONTROL_CTSRTS 1
#define RT_SERIAL_FLOWCONTROL_NONE 0
struct serial_configure
{
rt_uint32_t baud_rate;
rt_uint32_t data_bits :4;
rt_uint32_t stop_bits :2;
rt_uint32_t parity :2;
rt_uint32_t bit_order :1;
rt_uint32_t invert :1;
rt_uint32_t rx_bufsz :16;
rt_uint32_t tx_bufsz :16;
rt_uint32_t flowcontrol :1;
rt_uint32_t reserved :5;
};
struct rt_device_notify
{
void (*notify)(rt_device_t dev);
struct rt_device *dev;
};
struct rt_serial_device
{
struct rt_device parent;
const struct rt_uart_ops *ops;
struct serial_configure config;
void *serial_rx;
void *serial_tx;
struct rt_device_notify rx_notify;
};
typedef struct rt_serial_device rt_serial_t;
#define UART_RX_DMA_IT_IDLE_FLAG 0x00
#define UART_RX_DMA_IT_HT_FLAG 0x01
#define UART_RX_DMA_IT_TC_FLAG 0x02
/* stm32 config class */
struct stm32_uart_config
{
const char *name;
USART_TypeDef *Instance;
IRQn_Type irq_type;
struct dma_config *dma_rx;
struct dma_config *dma_tx;
uint32_t GPIO_Alternate;
uint32_t GPIO_TX_Pin;
GPIO_TypeDef* GPIO_TX_Port;
uint32_t GPIO_RX_Pin;
GPIO_TypeDef* GPIO_RX_Port;
};
/* stm32 uart dirver class */
struct stm32_uart
{
UART_HandleTypeDef handle;
struct stm32_uart_config *config;
rt_uint32_t DR_mask;
#ifdef RT_SERIAL_USING_DMA
struct
{
DMA_HandleTypeDef handle;
rt_size_t remaining_cnt;
} dma_rx;
struct
{
DMA_HandleTypeDef handle;
} dma_tx;
#endif
rt_uint16_t uart_dma_flag;
struct rt_serial_device serial;
void* user_data;
};
enum
{
#ifdef BSP_USING_UART1
UART1_INDEX,
#endif
#ifdef BSP_USING_UART2
UART2_INDEX,
#endif
#ifdef BSP_USING_UART3
UART3_INDEX,
#endif
#ifdef BSP_USING_UART4
UART4_INDEX,
#endif
#ifdef BSP_USING_UART5
UART5_INDEX,
#endif
#ifdef BSP_USING_UART6
UART6_INDEX,
#endif
#ifdef BSP_USING_UART7
UART7_INDEX,
#endif
#ifdef BSP_USING_UART8
UART8_INDEX,
#endif
#ifdef BSP_USING_LPUART1
LPUART1_INDEX,
#endif
};
static struct stm32_uart_config uart_config[] =
{
#ifdef BSP_USING_UART1
UART1_CONFIG,
#endif
#ifdef BSP_USING_UART2
UART2_CONFIG,
#endif
#ifdef BSP_USING_UART3
UART3_CONFIG,
#endif
#ifdef BSP_USING_UART4
UART4_CONFIG,
#endif
#ifdef BSP_USING_UART5
UART5_CONFIG,
#endif
#ifdef BSP_USING_UART6
UART6_CONFIG,
#endif
#ifdef BSP_USING_UART7
UART7_CONFIG,
#endif
#ifdef BSP_USING_UART8
UART8_CONFIG,
#endif
#ifdef BSP_USING_LPUART1
LPUART1_CONFIG,
#endif
};
static struct stm32_uart uart_obj[sizeof(uart_config) / sizeof(uart_config[0])] = {0};
static rt_uint32_t stm32_uart_get_mask(rt_uint32_t word_length, rt_uint32_t parity)
{
rt_uint32_t mask = 0x00FFU;
if (word_length == UART_WORDLENGTH_8B)
{
if (parity == UART_PARITY_NONE)
{
mask = 0x00FFU ;
}
else
{
mask = 0x007FU ;
}
}
#ifdef UART_WORDLENGTH_9B
else if (word_length == UART_WORDLENGTH_9B)
{
if (parity == UART_PARITY_NONE)
{
mask = 0x01FFU ;
}
else
{
mask = 0x00FFU ;
}
}
#endif
#ifdef UART_WORDLENGTH_7B
else if (word_length == UART_WORDLENGTH_7B)
{
if (parity == UART_PARITY_NONE)
{
mask = 0x007FU ;
}
else
{
mask = 0x003FU ;
}
}
else
{
mask = 0x0000U;
}
#endif
return mask;
}
static rt_err_t stm32_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
{
struct stm32_uart *uart;
int uart_unit;
RT_ASSERT(serial != RT_NULL);
RT_ASSERT(cfg != RT_NULL);
uart = rt_container_of(serial, struct stm32_uart, serial);
uart->handle.Instance = uart->config->Instance;
uart->handle.Init.BaudRate = cfg->baud_rate;
uart->handle.Init.Mode = UART_MODE_TX_RX;
#ifdef USART_CR1_OVER8
uart->handle.Init.OverSampling = cfg->baud_rate > 5000000 ? UART_OVERSAMPLING_8 : UART_OVERSAMPLING_16;
#else
uart->handle.Init.OverSampling = UART_OVERSAMPLING_16;
#endif /* USART_CR1_OVER8 */
switch (cfg->flowcontrol)
{
case RT_SERIAL_FLOWCONTROL_NONE:
uart->handle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
break;
case RT_SERIAL_FLOWCONTROL_CTSRTS:
uart->handle.Init.HwFlowCtl = UART_HWCONTROL_RTS_CTS;
break;
default:
uart->handle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
break;
}
switch (cfg->data_bits)
{
case DATA_BITS_8:
if (cfg->parity == PARITY_ODD || cfg->parity == PARITY_EVEN)
uart->handle.Init.WordLength = UART_WORDLENGTH_9B;
else
uart->handle.Init.WordLength = UART_WORDLENGTH_8B;
break;
case DATA_BITS_9:
uart->handle.Init.WordLength = UART_WORDLENGTH_9B;
break;
default:
uart->handle.Init.WordLength = UART_WORDLENGTH_8B;
break;
}
switch (cfg->stop_bits)
{
case STOP_BITS_1:
uart->handle.Init.StopBits = UART_STOPBITS_1;
break;
case STOP_BITS_2:
uart->handle.Init.StopBits = UART_STOPBITS_2;
break;
default:
uart->handle.Init.StopBits = UART_STOPBITS_1;
break;
}
switch (cfg->parity)
{
case PARITY_NONE:
uart->handle.Init.Parity = UART_PARITY_NONE;
break;
case PARITY_ODD:
uart->handle.Init.Parity = UART_PARITY_ODD;
break;
case PARITY_EVEN:
uart->handle.Init.Parity = UART_PARITY_EVEN;
break;
default:
uart->handle.Init.Parity = UART_PARITY_NONE;
break;
}
#ifdef RT_SERIAL_USING_DMA
if (!(serial->parent.open_flag & RT_DEVICE_OFLAG_OPEN)) {
uart->dma_rx.remaining_cnt = cfg->bufsz;
}
#endif
#ifdef USART1
if (uart->handle.Instance == USART1){
__HAL_RCC_USART1_CLK_ENABLE();
uart_unit = 1;
if (0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_9;
uart->config->GPIO_TX_Port = GPIOA;
uart->config->GPIO_RX_Pin = GPIO_PIN_10;
uart->config->GPIO_RX_Port = GPIOA;
pika_platform_printf("WARNING: UART1 GPIO TX/RX Pin not set, use default PA9/PA10\r\n");
}
}
#endif
#ifdef USART2
if (uart->handle.Instance == USART2){
__HAL_RCC_USART2_CLK_ENABLE();
uart_unit = 2;
if (0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_2;
uart->config->GPIO_TX_Port = GPIOA;
uart->config->GPIO_RX_Pin = GPIO_PIN_3;
uart->config->GPIO_RX_Port = GPIOA;
pika_platform_printf("WARNING: UART2 GPIO TX/RX Pin not set, use default PA2/PA3\r\n");
}
}
#endif
#ifdef USART3
if (uart->handle.Instance == USART3){
__HAL_RCC_USART3_CLK_ENABLE();
uart_unit = 3;
if (0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_10;
uart->config->GPIO_TX_Port = GPIOB;
uart->config->GPIO_RX_Pin = GPIO_PIN_11;
uart->config->GPIO_RX_Port = GPIOB;
pika_platform_printf("WARNING: UART3 GPIO TX/RX Pin not set, use default PB10/PB11\r\n");
}
}
#endif
#ifdef UART4
if (uart->handle.Instance == UART4){
__HAL_RCC_UART4_CLK_ENABLE();
uart_unit = 4;
if (0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_0;
uart->config->GPIO_TX_Port = GPIOA;
uart->config->GPIO_RX_Pin = GPIO_PIN_1;
uart->config->GPIO_RX_Port = GPIOA;
pika_platform_printf("WARNING: UART4 GPIO TX/RX Pin not set, use default PA0/PA1\r\n");
}
}
#endif
#ifdef USART4
if (uart->handle.Instance == USART4){
__HAL_RCC_USART4_CLK_ENABLE();
uart_unit = 4;
if (0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_0;
uart->config->GPIO_TX_Port = GPIOA;
uart->config->GPIO_RX_Pin = GPIO_PIN_1;
uart->config->GPIO_RX_Port = GPIOA;
pika_platform_printf("WARNING: UART4 GPIO TX/RX Pin not set, use default PA0/PA1\r\n");
}
}
#endif
#ifdef UART5
if (uart->handle.Instance == UART5){
__HAL_RCC_UART5_CLK_ENABLE();
uart_unit = 5;
if (0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_12;
uart->config->GPIO_TX_Port = GPIOC;
uart->config->GPIO_RX_Pin = GPIO_PIN_2;
uart->config->GPIO_RX_Port = GPIOD;
pika_platform_printf("WARNING: UART5 GPIO TX/RX Pin not set, use default PC12/PD2\r\n");
}
}
#endif
#ifdef USART5
if (uart->handle.Instance == USART5){
__HAL_RCC_USART5_CLK_ENABLE();
uart_unit = 5;
if (0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_12;
uart->config->GPIO_TX_Port = GPIOC;
uart->config->GPIO_RX_Pin = GPIO_PIN_2;
uart->config->GPIO_RX_Port = GPIOD;
pika_platform_printf("WARNING: UART5 GPIO TX/RX Pin not set, use default PC12/PD2\r\n");
}
}
#endif
#ifdef UART6
if (uart->handle.Instance == UART6){
__HAL_RCC_UART6_CLK_ENABLE();
uart_unit = 6;
if (0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_6;
uart->config->GPIO_TX_Port = GPIOC;
uart->config->GPIO_RX_Pin = GPIO_PIN_7;
uart->config->GPIO_RX_Port = GPIOC;
pika_platform_printf("WARNING: UART6 GPIO TX/RX Pin not set, use default PC6/PC7\r\n");
}
}
#endif
#ifdef USART6
if (uart->handle.Instance == USART6){
__HAL_RCC_USART6_CLK_ENABLE();
uart_unit = 6;
if (0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_6;
uart->config->GPIO_TX_Port = GPIOC;
uart->config->GPIO_RX_Pin = GPIO_PIN_7;
uart->config->GPIO_RX_Port = GPIOC;
pika_platform_printf("WARNING: UART6 GPIO TX/RX Pin not set, use default PC6/PC7\r\n");
}
}
#endif
#ifdef UART7
if (uart->handle.Instance == UART7){
__HAL_RCC_UART7_CLK_ENABLE();
uart_unit = 7;
if (0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_1;
uart->config->GPIO_TX_Port = GPIOE;
uart->config->GPIO_RX_Pin = GPIO_PIN_0;
uart->config->GPIO_RX_Port = GPIOE;
pika_platform_printf("WARNING: UART7 GPIO TX/RX Pin not set, use default PE1/PE0\r\n");
}
}
#endif
#ifdef USART7
if (uart->handle.Instance == USART7){
__HAL_RCC_USART7_CLK_ENABLE();
uart_unit = 7;
if(0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_1;
uart->config->GPIO_TX_Port = GPIOE;
uart->config->GPIO_RX_Pin = GPIO_PIN_0;
uart->config->GPIO_RX_Port = GPIOE;
pika_platform_printf("WARNING: UART7 GPIO TX/RX Pin not set, use default PE1/PE0\r\n");
}
}
#endif
#ifdef UART8
if (uart->handle.Instance == UART8){
__HAL_RCC_UART8_CLK_ENABLE();
uart_unit = 8;
if(0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_1;
uart->config->GPIO_TX_Port = GPIOE;
uart->config->GPIO_RX_Pin = GPIO_PIN_0;
uart->config->GPIO_RX_Port = GPIOE;
pika_platform_printf("WARNING: UART8 GPIO TX/RX Pin not set, use default PE1/PE0\r\n");
}
}
#endif
#ifdef USART8
if (uart->handle.Instance == USART8){
__HAL_RCC_USART8_CLK_ENABLE();
uart_unit = 8;
if(0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_1;
uart->config->GPIO_TX_Port = GPIOE;
uart->config->GPIO_RX_Pin = GPIO_PIN_0;
uart->config->GPIO_RX_Port = GPIOE;
pika_platform_printf("WARNING: UART8 GPIO TX/RX Pin not set, use default PE1/PE0\r\n");
}
}
#endif
#ifdef UART9
if (uart->handle.Instance == UART9){
__HAL_RCC_UART9_CLK_ENABLE();
uart_unit = 9;
if(0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_1;
uart->config->GPIO_TX_Port = GPIOE;
uart->config->GPIO_RX_Pin = GPIO_PIN_0;
uart->config->GPIO_RX_Port = GPIOE;
pika_platform_printf("WARNING: UART9 GPIO TX/RX Pin not set, use default PE1/PE0\r\n");
}
}
#endif
#ifdef USART9
if (uart->handle.Instance == USART9){
__HAL_RCC_USART9_CLK_ENABLE();
uart_unit = 9;
if(0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_1;
uart->config->GPIO_TX_Port = GPIOE;
uart->config->GPIO_RX_Pin = GPIO_PIN_0;
uart->config->GPIO_RX_Port = GPIOE;
pika_platform_printf("WARNING: UART9 GPIO TX/RX Pin not set, use default PE1/PE0\r\n");
}
}
#endif
#ifdef UART10
if (uart->handle.Instance == UART10){
__HAL_RCC_UART10_CLK_ENABLE();
uart_unit = 10;
if(0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_1;
uart->config->GPIO_TX_Port = GPIOE;
uart->config->GPIO_RX_Pin = GPIO_PIN_0;
uart->config->GPIO_RX_Port = GPIOE;
pika_platform_printf("WARNING: UART10 GPIO TX/RX Pin not set, use default PE1/PE0\r\n");
}
}
#endif
#ifdef USART10
if (uart->handle.Instance == USART10){
__HAL_RCC_USART10_CLK_ENABLE();
uart_unit = 10;
if(0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_1;
uart->config->GPIO_TX_Port = GPIOE;
uart->config->GPIO_RX_Pin = GPIO_PIN_0;
uart->config->GPIO_RX_Port = GPIOE;
pika_platform_printf("WARNING: UART10 GPIO TX/RX Pin not set, use default PE1/PE0\r\n");
}
}
#endif
#ifdef LPUART1
if (uart->handle.Instance == LPUART1){
__HAL_RCC_LPUART1_CLK_ENABLE();
uart_unit = 1;
if(0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_2;
uart->config->GPIO_TX_Port = GPIOA;
uart->config->GPIO_RX_Pin = GPIO_PIN_3;
uart->config->GPIO_RX_Port = GPIOA;
pika_platform_printf("WARNING: LPUART1 GPIO TX/RX Pin not set, use default PA2/PA3\r\n");
}
}
#endif
#ifdef LPUART2
if (uart->handle.Instance == LPUART2){
__HAL_RCC_LPUART2_CLK_ENABLE();
uart_unit = 2;
if(0 == uart->config->GPIO_TX_Pin && 0 == uart->config->GPIO_RX_Pin){
uart->config->GPIO_TX_Pin = GPIO_PIN_2;
uart->config->GPIO_TX_Port = GPIOA;
uart->config->GPIO_RX_Pin = GPIO_PIN_3;
uart->config->GPIO_RX_Port = GPIOA;
pika_platform_printf("WARNING: LPUART2 GPIO TX/RX Pin not set, use default PA2/PA3\r\n");
}
}
#endif
mp_hal_gpio_clock_enable(uart->config->GPIO_TX_Port);
mp_hal_gpio_clock_enable(uart->config->GPIO_RX_Port);
/* GPIO INIT */
GPIO_InitTypeDef GPIO_InitStruct = {0};
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
#if defined(SOC_SERIES_STM32H7) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32L4)
GPIO_InitStruct.Alternate = uart->config->GPIO_Alternate;
#endif
GPIO_InitStruct.Pin = uart->config->GPIO_TX_Pin;
HAL_GPIO_Init(uart->config->GPIO_TX_Port, &GPIO_InitStruct);
GPIO_InitStruct.Pin = uart->config->GPIO_RX_Pin;
HAL_GPIO_Init(uart->config->GPIO_RX_Port, &GPIO_InitStruct);
/* END GPIO INIT */
if (HAL_UART_Init(&uart->handle) != HAL_OK)
{
return -RT_ERROR;
}
uart->DR_mask = stm32_uart_get_mask(uart->handle.Init.WordLength, uart->handle.Init.Parity);
return RT_EOK;
}
static rt_err_t stm32_control(struct rt_serial_device *serial, int cmd, void *arg)
{
struct stm32_uart *uart;
#ifdef RT_SERIAL_USING_DMA
rt_ubase_t ctrl_arg = (rt_ubase_t)arg;
#endif
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct stm32_uart, serial);
switch (cmd)
{
/* disable interrupt */
case RT_DEVICE_CTRL_CLR_INT:
/* disable rx irq */
NVIC_DisableIRQ(uart->config->irq_type);
/* disable interrupt */
__HAL_UART_DISABLE_IT(&(uart->handle), UART_IT_RXNE);
#ifdef RT_SERIAL_USING_DMA
/* disable DMA */
if (ctrl_arg == RT_DEVICE_FLAG_DMA_RX)
{
HAL_NVIC_DisableIRQ(uart->config->dma_rx->dma_irq);
if (HAL_DMA_Abort(&(uart->dma_rx.handle)) != HAL_OK)
{
RT_ASSERT(0);
}
if (HAL_DMA_DeInit(&(uart->dma_rx.handle)) != HAL_OK)
{
RT_ASSERT(0);
}
}
else if(ctrl_arg == RT_DEVICE_FLAG_DMA_TX)
{
HAL_NVIC_DisableIRQ(uart->config->dma_tx->dma_irq);
if (HAL_DMA_DeInit(&(uart->dma_tx.handle)) != HAL_OK)
{
RT_ASSERT(0);
}
}
#endif
break;
/* enable interrupt */
case RT_DEVICE_CTRL_SET_INT:
/* enable rx irq */
HAL_NVIC_SetPriority(uart->config->irq_type, 1, 0);
HAL_NVIC_EnableIRQ(uart->config->irq_type);
/* enable interrupt */
__HAL_UART_ENABLE_IT(&(uart->handle), UART_IT_RXNE);
break;
#ifdef RT_SERIAL_USING_DMA
case RT_DEVICE_CTRL_CONFIG:
stm32_dma_config(serial, ctrl_arg);
break;
#endif
case RT_DEVICE_CTRL_CLOSE:
if (HAL_UART_DeInit(&(uart->handle)) != HAL_OK )
{
RT_ASSERT(0)
}
break;
}
return RT_EOK;
}
static int stm32_putc(struct rt_serial_device *serial, char c)
{
struct stm32_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct stm32_uart, serial);
UART_INSTANCE_CLEAR_FUNCTION(&(uart->handle), UART_FLAG_TC);
#if defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WL) || defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32F0) \
|| defined(SOC_SERIES_STM32L0) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32H7) || defined(SOC_SERIES_STM32L5) \
|| defined(SOC_SERIES_STM32G4) || defined(SOC_SERIES_STM32MP1) || defined(SOC_SERIES_STM32WB) || defined(SOC_SERIES_STM32F3) \
|| defined(SOC_SERIES_STM32U5)
uart->handle.Instance->TDR = c;
#else
uart->handle.Instance->DR = c;
#endif
while (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_TC) == RESET);
return 1;
}
static int stm32_getc(struct rt_serial_device *serial)
{
int ch;
struct stm32_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct stm32_uart, serial);
ch = -1;
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_RXNE) != RESET)
{
#if defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WL) || defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32F0) \
|| defined(SOC_SERIES_STM32L0) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32H7) || defined(SOC_SERIES_STM32L5) \
|| defined(SOC_SERIES_STM32G4) || defined(SOC_SERIES_STM32MP1) || defined(SOC_SERIES_STM32WB)|| defined(SOC_SERIES_STM32F3) \
|| defined(SOC_SERIES_STM32U5)
ch = uart->handle.Instance->RDR & uart->DR_mask;
#else
ch = uart->handle.Instance->DR & uart->DR_mask;
#endif
}
return ch;
}
static rt_ssize_t stm32_dma_transmit(struct rt_serial_device *serial, rt_uint8_t *buf, rt_size_t size, int direction)
{
struct stm32_uart *uart;
RT_ASSERT(serial != RT_NULL);
RT_ASSERT(buf != RT_NULL);
uart = rt_container_of(serial, struct stm32_uart, serial);
if (size == 0)
{
return 0;
}
if (RT_SERIAL_DMA_TX == direction)
{
if (HAL_UART_Transmit_DMA(&uart->handle, buf, size) == HAL_OK)
{
return size;
}
else
{
return 0;
}
}
return 0;
}
#ifdef RT_SERIAL_USING_DMA
static void dma_recv_isr(struct rt_serial_device *serial, rt_uint8_t isr_flag)
{
struct stm32_uart *uart;
rt_base_t level;
rt_size_t recv_len, counter;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct stm32_uart, serial);
level = rt_hw_interrupt_disable();
recv_len = 0;
counter = __HAL_DMA_GET_COUNTER(&(uart->dma_rx.handle));
switch (isr_flag)
{
case UART_RX_DMA_IT_IDLE_FLAG:
if (counter <= uart->dma_rx.remaining_cnt)
recv_len = uart->dma_rx.remaining_cnt - counter;
else
recv_len = serial->config.bufsz + uart->dma_rx.remaining_cnt - counter;
break;
case UART_RX_DMA_IT_HT_FLAG:
if (counter < uart->dma_rx.remaining_cnt)
recv_len = uart->dma_rx.remaining_cnt - counter;
break;
case UART_RX_DMA_IT_TC_FLAG:
if(counter >= uart->dma_rx.remaining_cnt)
recv_len = serial->config.bufsz + uart->dma_rx.remaining_cnt - counter;
default:
break;
}
if (recv_len)
{
uart->dma_rx.remaining_cnt = counter;
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_DMADONE | (recv_len << 8));
}
rt_hw_interrupt_enable(level);
}
#endif
static rt_ssize_t rt_serial_update_write_index(struct rt_ringbuffer *rb,
rt_uint16_t write_size)
{
rt_uint16_t size;
RT_ASSERT(rb != RT_NULL);
/* whether has enough space */
size = rt_ringbuffer_space_len(rb);
/* no space, drop some data */
if (size < write_size)
{
write_size = size;
#if !defined(RT_USING_ULOG) || defined(ULOG_USING_ISR_LOG)
LOG_W("The serial buffer (len %d) is overflow.", rb->buffer_size);
#endif
}
if (rb->buffer_size - rb->write_index > write_size)
{
/* this should not cause overflow because there is enough space for
* length of data in current mirror */
rb->write_index += write_size;
return write_size;
}
/* we are going into the other side of the mirror */
rb->write_mirror = ~rb->write_mirror;
rb->write_index = write_size - (rb->buffer_size - rb->write_index);
return write_size;
}
static void rt_hw_serial_isr(struct rt_serial_device *serial, int event)
{
RT_ASSERT(serial != RT_NULL);
switch (event & 0xff)
{
/* Interrupt receive event */
case RT_SERIAL_EVENT_RX_IND:
case RT_SERIAL_EVENT_RX_DMADONE:
{
struct rt_serial_rx_fifo *rx_fifo;
rt_size_t rx_length = 0;
rx_fifo = (struct rt_serial_rx_fifo *)serial->serial_rx;
rt_base_t level;
RT_ASSERT(rx_fifo != RT_NULL);
/* If the event is RT_SERIAL_EVENT_RX_IND, rx_length is equal to 0 */
rx_length = (event & (~0xff)) >> 8;
if (rx_length)
{ /* RT_SERIAL_EVENT_RX_DMADONE MODE */
level = rt_hw_interrupt_disable();
rt_serial_update_write_index(&(rx_fifo->rb), rx_length);
rt_hw_interrupt_enable(level);
}
/* Get the length of the data from the ringbuffer */
rx_length = rt_ringbuffer_data_len(&rx_fifo->rb);
if (rx_length == 0) break;
if (serial->parent.open_flag & RT_SERIAL_RX_BLOCKING)
{
if (rx_fifo->rx_cpt_index && rx_length >= rx_fifo->rx_cpt_index )
{
rx_fifo->rx_cpt_index = 0;
#ifndef PIKA_HAL
rt_completion_done(&(rx_fifo->rx_cpt));
#endif
}
}
/* Trigger the receiving completion callback */
if (serial->parent.rx_indicate != RT_NULL)
serial->parent.rx_indicate(&(serial->parent), rx_length);
if (serial->rx_notify.notify)
{
serial->rx_notify.notify(serial->rx_notify.dev);
}
break;
}
#ifndef PIKA_HAL
/* Interrupt transmit event */
case RT_SERIAL_EVENT_TX_DONE:
{
struct rt_serial_tx_fifo *tx_fifo;
rt_size_t tx_length = 0;
tx_fifo = (struct rt_serial_tx_fifo *)serial->serial_tx;
RT_ASSERT(tx_fifo != RT_NULL);
/* Get the length of the data from the ringbuffer */
tx_length = rt_ringbuffer_data_len(&tx_fifo->rb);
/* If there is no data in tx_ringbuffer,
* then the transmit completion callback is triggered*/
if (tx_length == 0)
{
tx_fifo->activated = RT_FALSE;
/* Trigger the transmit completion callback */
if (serial->parent.tx_complete != RT_NULL)
serial->parent.tx_complete(&serial->parent, RT_NULL);
if (serial->parent.open_flag & RT_SERIAL_TX_BLOCKING)
rt_completion_done(&(tx_fifo->tx_cpt));
break;
}
/* Call the transmit interface for transmission again */
/* Note that in interrupt mode, tx_fifo->buffer and tx_length
* are inactive parameters */
serial->ops->transmit(serial,
tx_fifo->buffer,
tx_length,
serial->parent.open_flag & ( \
RT_SERIAL_TX_BLOCKING | \
RT_SERIAL_TX_NON_BLOCKING));
break;
}
case RT_SERIAL_EVENT_TX_DMADONE:
{
struct rt_serial_tx_fifo *tx_fifo;
tx_fifo = (struct rt_serial_tx_fifo *)serial->serial_tx;
RT_ASSERT(tx_fifo != RT_NULL);
tx_fifo->activated = RT_FALSE;
/* Trigger the transmit completion callback */
if (serial->parent.tx_complete != RT_NULL)
serial->parent.tx_complete(&serial->parent, RT_NULL);
if (serial->parent.open_flag & RT_SERIAL_TX_BLOCKING)
{
rt_completion_done(&(tx_fifo->tx_cpt));
break;
}
rt_serial_update_read_index(&tx_fifo->rb, tx_fifo->put_size);
/* Get the length of the data from the ringbuffer.
* If there is some data in tx_ringbuffer,
* then call the transmit interface for transmission again */
if (rt_ringbuffer_data_len(&tx_fifo->rb))
{
tx_fifo->activated = RT_TRUE;
rt_uint8_t *put_ptr = RT_NULL;
/* Get the linear length buffer from rinbuffer */
tx_fifo->put_size = rt_serial_get_linear_buffer(&(tx_fifo->rb), &put_ptr);
/* Call the transmit interface for transmission again */
serial->ops->transmit(serial,
put_ptr,
tx_fifo->put_size,
RT_SERIAL_TX_NON_BLOCKING);
}
break;
}
#endif
default:
break;
}
}
/**
* Uart common interrupt process. This need add to uart ISR.
*
* @param serial serial device
*/
static void uart_isr(struct rt_serial_device *serial)
{
struct stm32_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct stm32_uart, serial);
#ifdef PIKA_HAL
HAL_UART_IRQHandler(&(uart->handle));
return;
#else
/* UART in mode Receiver -------------------------------------------------*/
if ((__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_RXNE) != RESET) &&
(__HAL_UART_GET_IT_SOURCE(&(uart->handle), UART_IT_RXNE) != RESET))
{
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
}
#ifdef RT_SERIAL_USING_DMA
else if ((uart->uart_dma_flag) && (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_IDLE) != RESET)
&& (__HAL_UART_GET_IT_SOURCE(&(uart->handle), UART_IT_IDLE) != RESET))
{
dma_recv_isr(serial, UART_RX_DMA_IT_IDLE_FLAG);
__HAL_UART_CLEAR_IDLEFLAG(&uart->handle);
}
else if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_TC) &&
(__HAL_UART_GET_IT_SOURCE(&(uart->handle), UART_IT_TC) != RESET))
{
if ((serial->parent.open_flag & RT_DEVICE_FLAG_DMA_TX) != 0)
{
HAL_UART_IRQHandler(&(uart->handle));
}
UART_INSTANCE_CLEAR_FUNCTION(&(uart->handle), UART_FLAG_TC);
}
#endif
else
{
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_ORE) != RESET)
{
__HAL_UART_CLEAR_OREFLAG(&uart->handle);
}
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_NE) != RESET)
{
__HAL_UART_CLEAR_NEFLAG(&uart->handle);
}
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_FE) != RESET)
{
__HAL_UART_CLEAR_FEFLAG(&uart->handle);
}
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_PE) != RESET)
{
__HAL_UART_CLEAR_PEFLAG(&uart->handle);
}
#if !defined(SOC_SERIES_STM32L4) && !defined(SOC_SERIES_STM32WL) && !defined(SOC_SERIES_STM32F7) && !defined(SOC_SERIES_STM32F0) \
&& !defined(SOC_SERIES_STM32L0) && !defined(SOC_SERIES_STM32G0) && !defined(SOC_SERIES_STM32H7) \
&& !defined(SOC_SERIES_STM32G4) && !defined(SOC_SERIES_STM32MP1) && !defined(SOC_SERIES_STM32WB) \
&& !defined(SOC_SERIES_STM32L5) && !defined(SOC_SERIES_STM32U5)
#ifdef SOC_SERIES_STM32F3
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_LBDF) != RESET)
{
UART_INSTANCE_CLEAR_FUNCTION(&(uart->handle), UART_FLAG_LBDF);
}
#else
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_LBD) != RESET)
{
UART_INSTANCE_CLEAR_FUNCTION(&(uart->handle), UART_FLAG_LBD);
}
#endif
#endif
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_CTS) != RESET)
{
UART_INSTANCE_CLEAR_FUNCTION(&(uart->handle), UART_FLAG_CTS);
}
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_TXE) != RESET)
{
UART_INSTANCE_CLEAR_FUNCTION(&(uart->handle), UART_FLAG_TXE);
}
if (__HAL_UART_GET_FLAG(&(uart->handle), UART_FLAG_RXNE) != RESET)
{
UART_INSTANCE_CLEAR_FUNCTION(&(uart->handle), UART_FLAG_RXNE);
}
}
#endif
}
#if defined(BSP_USING_UART1)
void USART1_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
uart_isr(&(uart_obj[UART1_INDEX].serial));
/* leave interrupt */
rt_interrupt_leave();
}
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART1_RX_USING_DMA)
void UART1_DMA_RX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART1_INDEX].dma_rx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART1_RX_USING_DMA) */
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART1_TX_USING_DMA)
void UART1_DMA_TX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART1_INDEX].dma_tx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART1_TX_USING_DMA) */
#endif /* BSP_USING_UART1 */
#if defined(BSP_USING_UART2)
void USART2_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
uart_isr(&(uart_obj[UART2_INDEX].serial));
/* leave interrupt */
rt_interrupt_leave();
}
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART2_RX_USING_DMA)
void UART2_DMA_RX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART2_INDEX].dma_rx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART2_RX_USING_DMA) */
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART2_TX_USING_DMA)
void UART2_DMA_TX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART2_INDEX].dma_tx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART2_TX_USING_DMA) */
#endif /* BSP_USING_UART2 */
#if defined(BSP_USING_UART3)
void USART3_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
uart_isr(&(uart_obj[UART3_INDEX].serial));
/* leave interrupt */
rt_interrupt_leave();
}
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART3_RX_USING_DMA)
void UART3_DMA_RX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART3_INDEX].dma_rx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(BSP_UART_USING_DMA_RX) && defined(BSP_UART3_RX_USING_DMA) */
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART3_TX_USING_DMA)
void UART3_DMA_TX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART3_INDEX].dma_tx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(BSP_UART_USING_DMA_TX) && defined(BSP_UART3_TX_USING_DMA) */
#endif /* BSP_USING_UART3*/
#if defined(BSP_USING_UART4)
void UART4_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
uart_isr(&(uart_obj[UART4_INDEX].serial));
/* leave interrupt */
rt_interrupt_leave();
}
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART4_RX_USING_DMA)
void UART4_DMA_RX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART4_INDEX].dma_rx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(BSP_UART_USING_DMA_RX) && defined(BSP_UART4_RX_USING_DMA) */
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART4_TX_USING_DMA)
void UART4_DMA_TX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART4_INDEX].dma_tx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(BSP_UART_USING_DMA_TX) && defined(BSP_UART4_TX_USING_DMA) */
#endif /* BSP_USING_UART4*/
#if defined(BSP_USING_UART5)
void UART5_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
uart_isr(&(uart_obj[UART5_INDEX].serial));
/* leave interrupt */
rt_interrupt_leave();
}
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART5_RX_USING_DMA)
void UART5_DMA_RX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART5_INDEX].dma_rx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART5_RX_USING_DMA) */
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART5_TX_USING_DMA)
void UART5_DMA_TX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART5_INDEX].dma_tx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART5_TX_USING_DMA) */
#endif /* BSP_USING_UART5*/
#if defined(BSP_USING_UART6)
void USART6_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
uart_isr(&(uart_obj[UART6_INDEX].serial));
/* leave interrupt */
rt_interrupt_leave();
}
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART6_RX_USING_DMA)
void UART6_DMA_RX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART6_INDEX].dma_rx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART6_RX_USING_DMA) */
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART6_TX_USING_DMA)
void UART6_DMA_TX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART6_INDEX].dma_tx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART6_TX_USING_DMA) */
#endif /* BSP_USING_UART6*/
#if defined(BSP_USING_UART7)
void UART7_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
uart_isr(&(uart_obj[UART7_INDEX].serial));
/* leave interrupt */
rt_interrupt_leave();
}
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART7_RX_USING_DMA)
void UART7_DMA_RX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART7_INDEX].dma_rx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART7_RX_USING_DMA) */
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART7_TX_USING_DMA)
void UART7_DMA_TX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART7_INDEX].dma_tx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART7_TX_USING_DMA) */
#endif /* BSP_USING_UART7*/
#if defined(BSP_USING_UART8)
void UART8_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
uart_isr(&(uart_obj[UART8_INDEX].serial));
/* leave interrupt */
rt_interrupt_leave();
}
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART8_RX_USING_DMA)
void UART8_DMA_RX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART8_INDEX].dma_rx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART8_RX_USING_DMA) */
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART8_TX_USING_DMA)
void UART8_DMA_TX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[UART8_INDEX].dma_tx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART8_TX_USING_DMA) */
#endif /* BSP_USING_UART8*/
#if defined(BSP_USING_LPUART1)
void LPUART1_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
uart_isr(&(uart_obj[LPUART1_INDEX].serial));
/* leave interrupt */
rt_interrupt_leave();
}
#if defined(RT_SERIAL_USING_DMA) && defined(BSP_LPUART1_RX_USING_DMA)
void LPUART1_DMA_RX_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_DMA_IRQHandler(&uart_obj[LPUART1_INDEX].dma_rx.handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_LPUART1_RX_USING_DMA) */
#endif /* BSP_USING_LPUART1*/
static void stm32_uart_get_dma_config(void)
{
#ifdef BSP_USING_UART1
uart_obj[UART1_INDEX].uart_dma_flag = 0;
#ifdef BSP_UART1_RX_USING_DMA
uart_obj[UART1_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_RX;
static struct dma_config uart1_dma_rx = UART1_DMA_RX_CONFIG;
uart_config[UART1_INDEX].dma_rx = &uart1_dma_rx;
#endif
#ifdef BSP_UART1_TX_USING_DMA
uart_obj[UART1_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_TX;
static struct dma_config uart1_dma_tx = UART1_DMA_TX_CONFIG;
uart_config[UART1_INDEX].dma_tx = &uart1_dma_tx;
#endif
#endif
#ifdef BSP_USING_UART2
uart_obj[UART2_INDEX].uart_dma_flag = 0;
#ifdef BSP_UART2_RX_USING_DMA
uart_obj[UART2_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_RX;
static struct dma_config uart2_dma_rx = UART2_DMA_RX_CONFIG;
uart_config[UART2_INDEX].dma_rx = &uart2_dma_rx;
#endif
#ifdef BSP_UART2_TX_USING_DMA
uart_obj[UART2_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_TX;
static struct dma_config uart2_dma_tx = UART2_DMA_TX_CONFIG;
uart_config[UART2_INDEX].dma_tx = &uart2_dma_tx;
#endif
#endif
#ifdef BSP_USING_UART3
uart_obj[UART3_INDEX].uart_dma_flag = 0;
#ifdef BSP_UART3_RX_USING_DMA
uart_obj[UART3_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_RX;
static struct dma_config uart3_dma_rx = UART3_DMA_RX_CONFIG;
uart_config[UART3_INDEX].dma_rx = &uart3_dma_rx;
#endif
#ifdef BSP_UART3_TX_USING_DMA
uart_obj[UART3_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_TX;
static struct dma_config uart3_dma_tx = UART3_DMA_TX_CONFIG;
uart_config[UART3_INDEX].dma_tx = &uart3_dma_tx;
#endif
#endif
#ifdef BSP_USING_UART4
uart_obj[UART4_INDEX].uart_dma_flag = 0;
#ifdef BSP_UART4_RX_USING_DMA
uart_obj[UART4_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_RX;
static struct dma_config uart4_dma_rx = UART4_DMA_RX_CONFIG;
uart_config[UART4_INDEX].dma_rx = &uart4_dma_rx;
#endif
#ifdef BSP_UART4_TX_USING_DMA
uart_obj[UART4_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_TX;
static struct dma_config uart4_dma_tx = UART4_DMA_TX_CONFIG;
uart_config[UART4_INDEX].dma_tx = &uart4_dma_tx;
#endif
#endif
#ifdef BSP_USING_UART5
uart_obj[UART5_INDEX].uart_dma_flag = 0;
#ifdef BSP_UART5_RX_USING_DMA
uart_obj[UART5_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_RX;
static struct dma_config uart5_dma_rx = UART5_DMA_RX_CONFIG;
uart_config[UART5_INDEX].dma_rx = &uart5_dma_rx;
#endif
#ifdef BSP_UART5_TX_USING_DMA
uart_obj[UART5_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_TX;
static struct dma_config uart5_dma_tx = UART5_DMA_TX_CONFIG;
uart_config[UART5_INDEX].dma_tx = &uart5_dma_tx;
#endif
#endif
#ifdef BSP_USING_UART6
uart_obj[UART6_INDEX].uart_dma_flag = 0;
#ifdef BSP_UART6_RX_USING_DMA
uart_obj[UART6_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_RX;
static struct dma_config uart6_dma_rx = UART6_DMA_RX_CONFIG;
uart_config[UART6_INDEX].dma_rx = &uart6_dma_rx;
#endif
#ifdef BSP_UART6_TX_USING_DMA
uart_obj[UART6_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_TX;
static struct dma_config uart6_dma_tx = UART6_DMA_TX_CONFIG;
uart_config[UART6_INDEX].dma_tx = &uart6_dma_tx;
#endif
#endif
#ifdef BSP_USING_UART7
uart_obj[UART7_INDEX].uart_dma_flag = 0;
#ifdef BSP_UART7_RX_USING_DMA
uart_obj[UART7_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_RX;
static struct dma_config uart7_dma_rx = UART7_DMA_RX_CONFIG;
uart_config[UART7_INDEX].dma_rx = &uart7_dma_rx;
#endif
#ifdef BSP_UART7_TX_USING_DMA
uart_obj[UART7_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_TX;
static struct dma_config uart7_dma_tx = UART7_DMA_TX_CONFIG;
uart_config[UART7_INDEX].dma_tx = &uart7_dma_tx;
#endif
#endif
#ifdef BSP_USING_UART8
uart_obj[UART8_INDEX].uart_dma_flag = 0;
#ifdef BSP_UART8_RX_USING_DMA
uart_obj[UART8_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_RX;
static struct dma_config uart8_dma_rx = UART8_DMA_RX_CONFIG;
uart_config[UART8_INDEX].dma_rx = &uart8_dma_rx;
#endif
#ifdef BSP_UART8_TX_USING_DMA
uart_obj[UART8_INDEX].uart_dma_flag |= RT_DEVICE_FLAG_DMA_TX;
static struct dma_config uart8_dma_tx = UART8_DMA_TX_CONFIG;
uart_config[UART8_INDEX].dma_tx = &uart8_dma_tx;
#endif
#endif
}
#ifdef RT_SERIAL_USING_DMA
static void stm32_dma_config(struct rt_serial_device *serial, rt_ubase_t flag)
{
struct rt_serial_rx_fifo *rx_fifo;
DMA_HandleTypeDef *DMA_Handle;
struct dma_config *dma_config;
struct stm32_uart *uart;
RT_ASSERT(serial != RT_NULL);
RT_ASSERT(flag == RT_DEVICE_FLAG_DMA_TX || flag == RT_DEVICE_FLAG_DMA_RX);
uart = rt_container_of(serial, struct stm32_uart, serial);
if (RT_DEVICE_FLAG_DMA_RX == flag)
{
DMA_Handle = &uart->dma_rx.handle;
dma_config = uart->config->dma_rx;
}
else /* RT_DEVICE_FLAG_DMA_TX == flag */
{
DMA_Handle = &uart->dma_tx.handle;
dma_config = uart->config->dma_tx;
}
LOG_D("%s dma config start", uart->config->name);
{
rt_uint32_t tmpreg = 0x00U;
#if defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0) \
|| defined(SOC_SERIES_STM32L0)|| defined(SOC_SERIES_STM32F3) || defined(SOC_SERIES_STM32L1)
/* enable DMA clock && Delay after an RCC peripheral clock enabling*/
SET_BIT(RCC->AHBENR, dma_config->dma_rcc);
tmpreg = READ_BIT(RCC->AHBENR, dma_config->dma_rcc);
#elif defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WL) \
|| defined(SOC_SERIES_STM32G4)|| defined(SOC_SERIES_STM32H7) || defined(SOC_SERIES_STM32WB)
/* enable DMA clock && Delay after an RCC peripheral clock enabling*/
SET_BIT(RCC->AHB1ENR, dma_config->dma_rcc);
tmpreg = READ_BIT(RCC->AHB1ENR, dma_config->dma_rcc);
#elif defined(SOC_SERIES_STM32MP1)
/* enable DMA clock && Delay after an RCC peripheral clock enabling*/
SET_BIT(RCC->MP_AHB2ENSETR, dma_config->dma_rcc);
tmpreg = READ_BIT(RCC->MP_AHB2ENSETR, dma_config->dma_rcc);
#endif
#if (defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WL) || defined(SOC_SERIES_STM32G4) || defined(SOC_SERIES_STM32WB)) && defined(DMAMUX1)
/* enable DMAMUX clock for L4+ and G4 */
__HAL_RCC_DMAMUX1_CLK_ENABLE();
#elif defined(SOC_SERIES_STM32MP1)
__HAL_RCC_DMAMUX_CLK_ENABLE();
#endif
UNUSED(tmpreg); /* To avoid compiler warnings */
}
if (RT_DEVICE_FLAG_DMA_RX == flag)
{
__HAL_LINKDMA(&(uart->handle), hdmarx, uart->dma_rx.handle);
}
else if (RT_DEVICE_FLAG_DMA_TX == flag)
{
__HAL_LINKDMA(&(uart->handle), hdmatx, uart->dma_tx.handle);
}
#if defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32L0)|| defined(SOC_SERIES_STM32F3) || defined(SOC_SERIES_STM32L1) || defined(SOC_SERIES_STM32U5)
DMA_Handle->Instance = dma_config->Instance;
#elif defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7)
DMA_Handle->Instance = dma_config->Instance;
DMA_Handle->Init.Channel = dma_config->channel;
#elif defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WL) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32G4) || defined(SOC_SERIES_STM32WB)\
|| defined(SOC_SERIES_STM32H7) || defined(SOC_SERIES_STM32MP1)
DMA_Handle->Instance = dma_config->Instance;
DMA_Handle->Init.Request = dma_config->request;
#endif
DMA_Handle->Init.PeriphInc = DMA_PINC_DISABLE;
DMA_Handle->Init.MemInc = DMA_MINC_ENABLE;
DMA_Handle->Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
DMA_Handle->Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
if (RT_DEVICE_FLAG_DMA_RX == flag)
{
DMA_Handle->Init.Direction = DMA_PERIPH_TO_MEMORY;
DMA_Handle->Init.Mode = DMA_CIRCULAR;
}
else if (RT_DEVICE_FLAG_DMA_TX == flag)
{
DMA_Handle->Init.Direction = DMA_MEMORY_TO_PERIPH;
DMA_Handle->Init.Mode = DMA_NORMAL;
}
DMA_Handle->Init.Priority = DMA_PRIORITY_MEDIUM;
#if defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) || defined(SOC_SERIES_STM32H7) || defined(SOC_SERIES_STM32MP1)
DMA_Handle->Init.FIFOMode = DMA_FIFOMODE_DISABLE;
#endif
if (HAL_DMA_DeInit(DMA_Handle) != HAL_OK)
{
RT_ASSERT(0);
}
if (HAL_DMA_Init(DMA_Handle) != HAL_OK)
{
RT_ASSERT(0);
}
/* enable interrupt */
if (flag == RT_DEVICE_FLAG_DMA_RX)
{
rx_fifo = (struct rt_serial_rx_fifo *)serial->serial_rx;
/* Start DMA transfer */
if (HAL_UART_Receive_DMA(&(uart->handle), rx_fifo->buffer, serial->config.bufsz) != HAL_OK)
{
/* Transfer error in reception process */
RT_ASSERT(0);
}
CLEAR_BIT(uart->handle.Instance->CR3, USART_CR3_EIE);
__HAL_UART_ENABLE_IT(&(uart->handle), UART_IT_IDLE);
}
/* DMA irq should set in DMA TX mode, or HAL_UART_TxCpltCallback function will not be called */
HAL_NVIC_SetPriority(dma_config->dma_irq, 0, 0);
HAL_NVIC_EnableIRQ(dma_config->dma_irq);
HAL_NVIC_SetPriority(uart->config->irq_type, 1, 0);
HAL_NVIC_EnableIRQ(uart->config->irq_type);
LOG_D("%s dma %s instance: %x", uart->config->name, flag == RT_DEVICE_FLAG_DMA_RX ? "RX" : "TX", DMA_Handle->Instance);
LOG_D("%s dma config done", uart->config->name);
}
/**
* @brief UART error callbacks
* @param huart: UART handle
* @note This example shows a simple way to report transfer error, and you can
* add your own implementation.
* @retval None
*/
void HAL_UART_ErrorCallback(UART_HandleTypeDef *huart)
{
RT_ASSERT(huart != NULL);
struct stm32_uart *uart = (struct stm32_uart *)huart;
LOG_D("%s: %s %d\n", __FUNCTION__, uart->config->name, huart->ErrorCode);
UNUSED(uart);
}
/**
* @brief Rx Transfer completed callback
* @param huart: UART handle
* @note This example shows a simple way to report end of DMA Rx transfer, and
* you can add your own implementation.
* @retval None
*/
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
struct stm32_uart *uart;
RT_ASSERT(huart != NULL);
uart = (struct stm32_uart *)huart;
dma_recv_isr(&uart->serial, UART_RX_DMA_IT_TC_FLAG);
}
/**
* @brief Rx Half transfer completed callback
* @param huart: UART handle
* @note This example shows a simple way to report end of DMA Rx Half transfer,
* and you can add your own implementation.
* @retval None
*/
void HAL_UART_RxHalfCpltCallback(UART_HandleTypeDef *huart)
{
struct stm32_uart *uart;
RT_ASSERT(huart != NULL);
uart = (struct stm32_uart *)huart;
dma_recv_isr(&uart->serial, UART_RX_DMA_IT_HT_FLAG);
}
static void _dma_tx_complete(struct rt_serial_device *serial)
{
struct stm32_uart *uart;
rt_size_t trans_total_index;
rt_base_t level;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct stm32_uart, serial);
level = rt_hw_interrupt_disable();
trans_total_index = __HAL_DMA_GET_COUNTER(&(uart->dma_tx.handle));
rt_hw_interrupt_enable(level);
if (trans_total_index == 0)
{
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_TX_DMADONE);
}
}
/**
* @brief HAL_UART_TxCpltCallback
* @param huart: UART handle
* @note This callback can be called by two functions, first in UART_EndTransmit_IT when
* UART Tx complete and second in UART_DMATransmitCplt function in DMA Circular mode.
* @retval None
*/
void HAL_UART_TxCpltCallback(UART_HandleTypeDef *huart)
{
struct stm32_uart *uart;
RT_ASSERT(huart != NULL);
uart = (struct stm32_uart *)huart;
_dma_tx_complete(&uart->serial);
}
#endif /* RT_SERIAL_USING_DMA */
struct rt_uart_ops
{
rt_err_t (*configure)(struct rt_serial_device *serial, struct serial_configure *cfg);
rt_err_t (*control)(struct rt_serial_device *serial, int cmd, void *arg);
int (*putc)(struct rt_serial_device *serial, char c);
int (*getc)(struct rt_serial_device *serial);
rt_ssize_t (*dma_transmit)(struct rt_serial_device *serial, rt_uint8_t *buf, rt_size_t size, int direction);
};
static const struct rt_uart_ops stm32_uart_ops =
{
.configure = stm32_configure,
.control = stm32_control,
.putc = stm32_putc,
.getc = stm32_getc,
.dma_transmit = stm32_dma_transmit
};
static rt_err_t rt_hw_serial_register(struct rt_serial_device *serial,
const char *name,
rt_uint32_t flag,
void *data)
{
rt_err_t ret;
struct rt_device *device;
RT_ASSERT(serial != RT_NULL);
device = &(serial->parent);
device->type = RT_Device_Class_Char;
device->rx_indicate = RT_NULL;
device->tx_complete = RT_NULL;
#ifdef RT_USING_DEVICE_OPS
// device->ops = &serial_ops;
device->ops = NULL;
#else
device->init = rt_serial_init;
device->open = rt_serial_open;
device->close = rt_serial_close;
device->read = rt_serial_read;
device->write = rt_serial_write;
device->control = rt_serial_control;
#endif
device->user_data = data;
/* register a character device */
// ret = rt_device_register(device, name, flag);
#ifdef RT_USING_POSIX_STDIO
/* set fops */
device->fops = &_serial_fops;
#endif
return RT_EOK;
}
/* Default config for serial_configure structure */
#define RT_SERIAL_CONFIG_DEFAULT \
{ \
BAUD_RATE_115200, /* 115200 bits/s */ \
DATA_BITS_8, /* 8 databits */ \
STOP_BITS_1, /* 1 stopbit */ \
PARITY_NONE, /* No parity */ \
BIT_ORDER_LSB, /* LSB first sent */ \
NRZ_NORMAL, /* Normal mode */ \
RT_SERIAL_RB_BUFSZ, /* Buffer size */ \
RT_SERIAL_FLOWCONTROL_NONE, /* Off flowcontrol */ \
0 \
}
static void uart_clock_init(void){
#if defined(STM32H7)
RCC_PeriphCLKInitTypeDef RCC_PeriphClkInit = {0};
// Configure USART1/6 and USART2/3/4/5/7/8 clock sources
RCC_PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART16 | RCC_PERIPHCLK_USART234578;
RCC_PeriphClkInit.Usart16ClockSelection = RCC_USART16CLKSOURCE_D2PCLK2;
RCC_PeriphClkInit.Usart234578ClockSelection = RCC_USART234578CLKSOURCE_D2PCLK1;
if (HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphClkInit) != HAL_OK) {
pika_platform_printf("Error at HAL_RCCEx_PeriphCLKConfig\r\n");
}
#endif
}
static int stricmp(const char *s1, const char *s2) {
while (*s1 && *s2) {
int diff = tolower((unsigned char)*s1) - tolower((unsigned char)*s2);
if (diff != 0) {
return diff;
}
s1++;
s2++;
}
return tolower((unsigned char)*s1) - tolower((unsigned char)*s2);
}
static volatile int uart_inited = 0;
static int rt_hw_usart_init(void)
{
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
rt_err_t result = 0;
uart_clock_init();
stm32_uart_get_dma_config();
for (rt_size_t i = 0; i < sizeof(uart_obj) / sizeof(struct stm32_uart); i++)
{
/* init UART object */
uart_obj[i].config = &uart_config[i];
uart_obj[i].serial.ops = &stm32_uart_ops;
uart_obj[i].serial.config = config;
/* register UART device */
result = rt_hw_serial_register(&uart_obj[i].serial, uart_obj[i].config->name,
RT_DEVICE_FLAG_RDWR
| RT_DEVICE_FLAG_INT_RX
| RT_DEVICE_FLAG_INT_TX
| uart_obj[i].uart_dma_flag
, NULL);
RT_ASSERT(result == RT_EOK);
}
return result;
}
#define RX_BUFF_LENGTH 256
typedef struct platform_UART {
struct stm32_uart* rt_uart;
struct serial_configure config;
uint8_t rxBuff[RX_BUFF_LENGTH];
size_t writePointer;
size_t readPointer;
} platform_UART;
int pika_hal_platform_UART_open(pika_dev* dev, char* name) {
if (uart_inited == 0){
rt_hw_usart_init();
uart_inited = 1;
}
for (rt_size_t i = 0; i < sizeof(uart_obj) / sizeof(struct stm32_uart); i++){
if (0 == stricmp(name, uart_obj[i].config->name)){
platform_UART* uart = (platform_UART*)pikaMalloc(sizeof(platform_UART));
pika_platform_memset(uart, 0, sizeof(platform_UART));
if (NULL == uart){
return -1;
}
uart->rt_uart = &uart_obj[i];
uart->rt_uart->user_data = dev;
dev->platform_data = uart;
return 0;
}
}
pika_platform_printf("Error: UART %s not found\r\n", name);
pika_platform_printf("Available UARTs:\r\n");
for (rt_size_t i = 0; i < sizeof(uart_obj) / sizeof(struct stm32_uart); i++){
pika_platform_printf("'%s'\r\n", uart_obj[i].config->name);
}
return -1;
}
int pika_hal_platform_UART_close(pika_dev* dev) {
platform_UART* uart = (platform_UART*)dev->platform_data;
if(NULL != uart){
pikaFree(uart, sizeof(platform_UART));
}
return 0;
}
int pika_hal_platform_UART_ioctl_config(pika_dev* dev,
pika_hal_UART_config* cfg) {
platform_UART* uart = (platform_UART*)dev->platform_data;
if( !dev->is_enabled ){
const struct serial_configure default_config = RT_SERIAL_CONFIG_DEFAULT;
pika_platform_memcpy(&uart->config, &default_config, sizeof(struct serial_configure));
switch(cfg->data_bits){
case PIKA_HAL_UART_DATA_BITS_8:
uart->config.data_bits = DATA_BITS_8;
break;
case PIKA_HAL_UART_DATA_BITS_7:
uart->config.data_bits = DATA_BITS_7;
break;
case PIKA_HAL_UART_DATA_BITS_6:
uart->config.data_bits = DATA_BITS_6;
break;
case PIKA_HAL_UART_DATA_BITS_5:
uart->config.data_bits = DATA_BITS_5;
break;
default:
pika_platform_printf("Error: invalid data bits %d\r\n", cfg->data_bits);
return -1;
}
switch(cfg->flow_control){
case PIKA_HAL_UART_FLOW_CONTROL_NONE:
uart->config.flowcontrol = RT_SERIAL_FLOWCONTROL_NONE;
break;
case PIKA_HAL_UART_FLOW_CONTROL_RTS_CTS:
uart->config.flowcontrol = RT_SERIAL_FLOWCONTROL_CTSRTS;
break;
default:
pika_platform_printf("Error: invalid flow control %d\r\n", cfg->flow_control);
return -1;
}
switch(cfg->parity){
case PIKA_HAL_UART_PARITY_NONE:
uart->config.parity = PARITY_NONE;
break;
case PIKA_HAL_UART_PARITY_EVEN:
uart->config.parity = PARITY_EVEN;
break;
case PIKA_HAL_UART_PARITY_ODD:
uart->config.parity = PARITY_ODD;
break;
default:
pika_platform_printf("Error: invalid parity %d\r\n", cfg->parity);
return -1;
}
switch(cfg->stop_bits){
case PIKA_HAL_UART_STOP_BITS_1:
uart->config.stop_bits = STOP_BITS_1;
break;
case PIKA_HAL_UART_STOP_BITS_2:
uart->config.stop_bits = STOP_BITS_2;
break;
default:
pika_platform_printf("Error: invalid stop bits %d\r\n", cfg->stop_bits);
return -1;
}
uart->config.baud_rate = cfg->baudrate;
return 0;
}
/* unsupported */
return -1;
}
int pika_hal_platform_UART_ioctl_enable(pika_dev* dev) {
platform_UART* uart = (platform_UART*)dev->platform_data;
stm32_configure(&uart->rt_uart->serial, &uart->config);
stm32_control(&uart->rt_uart->serial, RT_DEVICE_CTRL_SET_INT, NULL);
HAL_UART_Receive_IT(&uart->rt_uart->handle, uart->rxBuff, 1);
return 0;
}
int pika_hal_platform_UART_ioctl_disable(pika_dev* dev) {
return -1;
}
static pika_dev* find_uart_from_handle(UART_HandleTypeDef* handle){
for (rt_size_t i = 0; i < sizeof(uart_obj) / sizeof(struct stm32_uart); i++){
if (handle == &uart_obj[i].handle){
return uart_obj[i].user_data;
}
}
return NULL;
}
void HAL_UART_RxCpltCallback(UART_HandleTypeDef* huart) {
pika_dev* uart = find_uart_from_handle(huart);
platform_UART* pika_uart = uart->platform_data;
// Increment writePointer, wrap around if needed
pika_uart->writePointer = (pika_uart->writePointer + 1) % RX_BUFF_LENGTH;
// Start receiving next character
UART_Start_Receive_IT(huart, (uint8_t*)(pika_uart->rxBuff + pika_uart->writePointer), 1);
}
int pika_hal_platform_UART_read(pika_dev* dev, void* buf, size_t count) {
platform_UART* pika_uart = (platform_UART*)dev->platform_data;
size_t dataAvailable = (pika_uart->writePointer + RX_BUFF_LENGTH - pika_uart->readPointer) % RX_BUFF_LENGTH;
size_t length = count < dataAvailable ? count : dataAvailable;
for (size_t i = 0; i < length; i++) {
((char*)buf)[i] = pika_uart->rxBuff[pika_uart->readPointer];
pika_uart->readPointer = (pika_uart->readPointer + 1) % RX_BUFF_LENGTH;
}
UART_Start_Receive_IT(&pika_uart->rt_uart->handle, (uint8_t*)(pika_uart->rxBuff + pika_uart->writePointer), 1);
return length;
}
int pika_hal_platform_UART_write(pika_dev* dev, void* buf, size_t count) {
platform_UART* uart = (platform_UART*)dev->platform_data;
HAL_UART_Transmit(&uart->rt_uart->handle, buf, count, 0xffff);
return 0;
}
// #endif /* RT_USING_SERIAL */
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