507 lines
16 KiB
C
507 lines
16 KiB
C
#include "drv_clk.h"
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#include "drv_dma.h"
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#include "drv_gpio.h"
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#include "drv_uart.h"
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#include "drv_misc.h"
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#include "kit_debug.h"
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#define USART_BRR_2400_AT_72M ((uint16_t)0x7530)
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#define USART_BRR_2400_AT_36M ((uint16_t)0x3A98)
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#define USART_BRR_2400_AT_84M ((uint16_t)0x88B8)
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#define USART_BRR_2400_AT_42M ((uint16_t)0x445C)
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#define USART_BRR_2400_AT_96M ((uint16_t)0x9C40)
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#define USART_BRR_2400_AT_48M ((uint16_t)0x4E20)
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#define USART_BRR_2400_AT_120M ((uint16_t)0xC350)
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#define USART_BRR_2400_AT_60M ((uint16_t)0x61A8)
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typedef struct
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{
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KitIrqCall call[kUartInterrupt_End];
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uint16_t buf_len;
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uint16_t send_pos;
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uint8_t *send_buf;
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}UartIntItem;
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UartIntItem uart_int_item[kUartDev_End];
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typedef struct
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{
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uint8_t irq;
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DmaStream rx_dma_stream;
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DmaStream tx_dma_stream;
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DmaChannel dma_channel;
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USART_TypeDef* reg;
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uint32_t base_baudrate;
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}STM32UsartProp;
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static const STM32UsartProp stm32_uart[kUartDev_End] =
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{
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#ifdef GD32F450
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{USART1_IRQn, kDma2Stream_2, kDma2Stream_7, kDmaChannel_4, USART1, USART_BRR_2400_AT_96M},
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{USART2_IRQn, kDma1Stream_5, kDma1Stream_6, kDmaChannel_4, USART2, USART_BRR_2400_AT_48M},
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{USART3_IRQn, kDma1Stream_1, kDma1Stream_3, kDmaChannel_4, USART3, USART_BRR_2400_AT_48M},
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{UART4_IRQn, kDma1Stream_2, kDma1Stream_4, kDmaChannel_4, UART4, USART_BRR_2400_AT_48M},
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{UART5_IRQn, kDma1Stream_0, kDma1Stream_7, kDmaChannel_5, UART5, USART_BRR_2400_AT_48M},
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{USART6_IRQn, kDma2Stream_1, kDma2Stream_6, kDmaChannel_5, USART6, USART_BRR_2400_AT_96M},
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{UART7_IRQn, kDma1Stream_3, kDma1Stream_1, kDmaChannel_5, UART7, USART_BRR_2400_AT_48M},
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#elif GD32F470
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{USART1_IRQn, kDma2Stream_2, kDma2Stream_7, kDmaChannel_4, USART1, USART_BRR_2400_AT_120M},
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{USART2_IRQn, kDma1Stream_5, kDma1Stream_6, kDmaChannel_4, USART2, USART_BRR_2400_AT_60M},
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{USART3_IRQn, kDma1Stream_1, kDma1Stream_3, kDmaChannel_4, USART3, USART_BRR_2400_AT_60M},
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{UART4_IRQn, kDma1Stream_2, kDma1Stream_4, kDmaChannel_4, UART4, USART_BRR_2400_AT_60M},
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{UART5_IRQn, kDma1Stream_0, kDma1Stream_7, kDmaChannel_5, UART5, USART_BRR_2400_AT_60M},
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{USART6_IRQn, kDma2Stream_1, kDma2Stream_6, kDmaChannel_5, USART6, USART_BRR_2400_AT_120M},
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{UART7_IRQn, kDma1Stream_3, kDma1Stream_1, kDmaChannel_5, UART7, USART_BRR_2400_AT_60M},
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#else
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{USART1_IRQn, kDma2Stream_2, kDma2Stream_7, kDmaChannel_4, USART1, USART_BRR_2400_AT_84M},
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{USART2_IRQn, kDma1Stream_5, kDma1Stream_6, kDmaChannel_4, USART2, USART_BRR_2400_AT_42M},
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{USART3_IRQn, kDma1Stream_1, kDma1Stream_3, kDmaChannel_4, USART3, USART_BRR_2400_AT_42M},
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{UART4_IRQn, kDma1Stream_2, kDma1Stream_4, kDmaChannel_4, UART4, USART_BRR_2400_AT_42M},
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{UART5_IRQn, kDma1Stream_0, kDma1Stream_7, kDmaChannel_5, UART5, USART_BRR_2400_AT_42M},
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{USART6_IRQn, kDma2Stream_1, kDma2Stream_6, kDmaChannel_5, USART6, USART_BRR_2400_AT_84M},
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#endif
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};
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#define UART_FLAG_TXE KIT_CREAT_BIT(7)
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//在2400bps波特率下发送一个字节数据大约dly16000次
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KitResult drv_uart_series_sync_send(UartDev dev, uint8_t *buf, uint16_t len)
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{
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uint32_t i = 0, dly;
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USART_TypeDef *reg = stm32_uart[dev].reg;
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while(i < len)
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{
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dly = 0;
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while((reg->SR & UART_FLAG_TXE) != UART_FLAG_TXE)
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{
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if(dly++ > 20000)
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{
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return kKitResult_TimeOut;
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}
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}
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reg->DR = buf[i++];
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}
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return kKitResult_Ok;
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}
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KitResult drv_uart_dma_async_send(UartDev dev, uint8_t *buf, uint16_t len)
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{
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KitResult res;
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KIT_ASSERT_PARAM((dev < kUartDev_End) && (buf != NULL) && (len > 0));
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if((dev < kUartDev_End) && (buf != NULL) && (len > 0))
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{
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stm32_uart[dev].reg->SR &= ~USART_SR_TC;
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drv_dma_set_buf(stm32_uart[dev].tx_dma_stream, buf, len);
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res = kKitResult_Ok;
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}
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else
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{
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res = kKitResult_ParamErr;
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}
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return res;
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}
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KitResult drv_uart_int_async_send(UartDev dev, uint8_t *buf, uint16_t len)
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{
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KitResult res;
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KIT_ASSERT_PARAM((dev < kUartDev_End) && (buf != NULL) && (len > 0));
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if((dev < kUartDev_End) && (buf != NULL) && (len > 0))
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{
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stm32_uart[dev].reg->SR &= ~USART_SR_TC;
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uart_int_item[dev].buf_len = len;
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uart_int_item[dev].send_pos = 1;
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uart_int_item[dev].send_buf = buf;
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stm32_uart[dev].reg->DR = buf[0];
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stm32_uart[dev].reg->CR1 |= USART_CR1_TXEIE;
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res = kKitResult_Ok;
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}
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else
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{
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res = kKitResult_ParamErr;
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}
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return res;
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}
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#define GPIO_REMAP_UART0 KIT_CREAT_BIT(2)
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#define GPIO_REMAP_UART1 KIT_CREAT_BIT(3)
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#define GPIO_PARTIAL_REMAP_UART2 KIT_CREAT_BIT(4)
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#define GPIO_FULL_REMAP2_UART2 KIT_CREAT_BITS(4,5)
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/********************************************************************************
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Func UART0_REMAP = 0 UART0_REMAP = 1 | UART1_REMAP = 0 UART1_REMAP = 1 | UART2_REMAP = 0 UART2_REMAP = 1 UART1_REMAP = 2
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UART_TX PA9 PB6 | PA2 PD5 | PB10 PC10 PD8
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UART_RX PA10 PB7 | PA3 PD6 | PB11 PC11 PD9
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********************************************************************************/
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static KitResult drv_uart_set_clock_gpio(UartDev dev, uint16_t tx_idx, uint16_t rx_idx)
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{
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KitResult res = kKitResult_Ok;
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uint32_t tx_io = drv_gpio_get_actual_io(tx_idx);
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uint32_t rx_io = drv_gpio_get_actual_io(rx_idx);
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switch (dev)
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{
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case kUartDev_1:
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RCC->APB2ENR |= RCC_APB2ENR_USART1EN;
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if((tx_io == GPIO_PORT_PIN(kGpioPort_A, 9)) && (rx_io == GPIO_PORT_PIN(kGpioPort_A, 10)))
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{
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drv_gpio_set_af(kGpioPort_A, 9, 7);
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drv_gpio_set_af(kGpioPort_A, 10, 7);
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}
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else if((tx_io == GPIO_PORT_PIN(kGpioPort_B, 6)) && (rx_io == GPIO_PORT_PIN(kGpioPort_B, 7)))
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{
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drv_gpio_set_af(kGpioPort_B, 6, 7);
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drv_gpio_set_af(kGpioPort_B, 7, 7);
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}
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else
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{
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res |= kKitResult_ParamErr;
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}
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break;
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case kUartDev_2:
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RCC->APB1ENR |= RCC_APB1Periph_USART2;
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if((tx_io == GPIO_PORT_PIN(kGpioPort_A, 2)) && (rx_io == GPIO_PORT_PIN(kGpioPort_A, 3)))
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{
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drv_gpio_set_af(kGpioPort_A, 2, 7);
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drv_gpio_set_af(kGpioPort_A, 3, 7);
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}
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else if((tx_io == GPIO_PORT_PIN(kGpioPort_D, 5)) && (rx_io == GPIO_PORT_PIN(kGpioPort_D, 6)))
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{
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drv_gpio_set_af(kGpioPort_D, 5, 7);
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drv_gpio_set_af(kGpioPort_D, 6, 7);
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}
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else if((tx_io == GPIO_PORT_PIN(kGpioPort_D, 5)) && (rx_io == GPIO_PORT_PIN(kGpioPort_A, 3)))
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{
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drv_gpio_set_af(kGpioPort_D, 5, 7);
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drv_gpio_set_af(kGpioPort_A, 3, 7);
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}
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else
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{
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res |= kKitResult_ParamErr;
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}
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break;
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case kUartDev_3:
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RCC->APB1ENR |= RCC_APB1Periph_USART3;
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if((tx_io == GPIO_PORT_PIN(kGpioPort_B, 10)) && (rx_io == GPIO_PORT_PIN(kGpioPort_B, 11)))
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{
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drv_gpio_set_af(kGpioPort_B, 10, 7);
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drv_gpio_set_af(kGpioPort_B, 11, 7);
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}
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else if((tx_io == GPIO_PORT_PIN(kGpioPort_C, 10)) && (rx_io == GPIO_PORT_PIN(kGpioPort_C, 11)))
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{
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drv_gpio_set_af(kGpioPort_C, 10, 7);
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drv_gpio_set_af(kGpioPort_C, 11, 7);
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}
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else if((tx_io == GPIO_PORT_PIN(kGpioPort_D, 8)) && (rx_io == GPIO_PORT_PIN(kGpioPort_B, 11)))
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{
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drv_gpio_set_af(kGpioPort_D, 8, 7);
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drv_gpio_set_af(kGpioPort_B, 11, 7);
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}
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else if((tx_io == GPIO_PORT_PIN(kGpioPort_B, 10)) && (rx_io == GPIO_PORT_PIN(kGpioPort_D, 9)))
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{
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drv_gpio_set_af(kGpioPort_B, 10, 7);
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drv_gpio_set_af(kGpioPort_D, 9, 7);
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}
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else
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{
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res |= kKitResult_ParamErr;
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}
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break;
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case kUartDev_4:
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RCC->APB1ENR |= RCC_APB1Periph_UART4;
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if((tx_io == GPIO_PORT_PIN(kGpioPort_A, 0)) && (rx_io == GPIO_PORT_PIN(kGpioPort_A, 1)))
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{
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drv_gpio_set_af(kGpioPort_A, 0, 8);
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drv_gpio_set_af(kGpioPort_A, 1, 8);
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}
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else if((tx_io == GPIO_PORT_PIN(kGpioPort_C, 10)) && (rx_io == GPIO_PORT_PIN(kGpioPort_C, 11)))
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{
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drv_gpio_set_af(kGpioPort_C, 10, 8);
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drv_gpio_set_af(kGpioPort_C, 11, 8);
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}
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else
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{
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res |= kKitResult_ParamErr;
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}
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break;
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case kUartDev_5:
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RCC->APB1ENR |= RCC_APB1Periph_UART5;
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if((tx_io == GPIO_PORT_PIN(kGpioPort_C, 12)) && (rx_io == GPIO_PORT_PIN(kGpioPort_D, 2)))
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{
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drv_gpio_set_af(kGpioPort_C, 12, 8);
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drv_gpio_set_af(kGpioPort_D, 2, 8);
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}
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else
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{
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res |= kKitResult_ParamErr;
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}
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break;
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case kUartDev_6:
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RCC->APB2ENR |= RCC_APB2ENR_USART6EN;
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if((tx_io == GPIO_PORT_PIN(kGpioPort_C, 6)) && (rx_io == GPIO_PORT_PIN(kGpioPort_C, 7)))
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{
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drv_gpio_set_af(kGpioPort_C, 6, 8);
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drv_gpio_set_af(kGpioPort_C, 7, 8);
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}
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else
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{
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res |= kKitResult_ParamErr;
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}
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break;
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#if defined(STM32F429_439xx)
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case kUartDev_7:
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RCC->APB1ENR |= RCC_APB1ENR_UART7EN;
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if((tx_io == GPIO_PORT_PIN(kGpioPort_F, 7)) && (rx_io == GPIO_PORT_PIN(kGpioPort_F, 6)))
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{
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drv_gpio_set_af(kGpioPort_F, 6, 8);
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drv_gpio_set_af(kGpioPort_F, 7, 8);
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}
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else
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{
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res |= kKitResult_ParamErr;
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}
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break;
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#endif
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default:
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res = kKitResult_ParamErr;
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break;
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}
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return res;
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}
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#define USER_CR1_UE KIT_CREAT_BIT(13) //enable usart
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#define USER_CR1_TXEIE KIT_CREAT_BIT(7)
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#define USER_CR1_TCIE KIT_CREAT_BIT(6)
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#define USER_CR1_RXNEIE KIT_CREAT_BIT(5)
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#define USER_CR1_TXEIE KIT_CREAT_BIT(7)
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#define USER_CR1_PCE_EN KIT_CREAT_BIT(10) //enable parity
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#define USER_SR1_TXEIE KIT_CREAT_BIT(7)
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#define USER_SR1_TCIE KIT_CREAT_BIT(6)
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#define USER_SR1_RXNEIE KIT_CREAT_BIT(5)
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#define USART_Mode_Rx KIT_CREAT_BIT(2)
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#define USART_Mode_Tx KIT_CREAT_BIT(3)
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#define USART_FLAG_ORE ((uint16_t)0x0008)
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#define USART_FLAG_RXNE ((uint16_t)0x0020)
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/*******************重要寄存器默认值*******************
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*USART_CR1-M(12) 默认8个数据位
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*USART_CR1-TXEIE(7) 默认关闭发送缓冲区空中断使能
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*USART_CR1-TCIE(6) 默认关闭发送完成中断使能
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*USART_CR1-RXNEIE(5) 默认关闭接收缓冲区非空中断使能
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*波特率以2400为基数，必须为2400整数倍
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*开启奇偶校验长度必须为9Bit
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********************************************************/
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KitResult drv_uart_init(UartDev dev, uint32_t baudrate, uint32_t uart_config, uint8_t tx_io, uint8_t rx_io)
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{
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uint32_t tmp;
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USART_TypeDef *reg;
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KitResult res = kKitResult_Ok;
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KIT_ASSERT_PARAM((dev < kUartDev_End) && ((baudrate % 2400) == 0));
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if (((baudrate % 2400) == 0) && (dev < kUartDev_End))
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{
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reg = stm32_uart[dev].reg;
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drv_uart_set_clock_gpio(dev, tx_io, rx_io);
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//计算波特率，基于2400
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reg->BRR = stm32_uart[dev].base_baudrate / (baudrate / 2400);
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//使能收、发和uart
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tmp = USER_CR1_UE | USART_Mode_Rx | USART_Mode_Tx;
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//设置数据长度
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tmp |= (uart_config & 0x0001) << 12;
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//设置校验
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tmp |= ((uart_config & 0x0006) >> 1) << 9;
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//停止位长度
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reg->CR2 |= ((uart_config & 0x0018) >> 3) << 12;
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reg->CR1 |= tmp;
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}
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else
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{
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res = kKitResult_ParamErr;
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}
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return res;
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}
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//static KitIrqCall uart_irq_call[kUartDev_End][kUartInterrupt_End];
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static const uint16_t uart_irq_flag[kUartInterrupt_End] = {USER_CR1_RXNEIE, USER_CR1_TXEIE};
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KitResult drv_uart_set_interrupt(UartDev dev, UartInterrupt it_type, uint16_t priority, KitIrqCall call)
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{
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KitResult res;
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KIT_ASSERT_PARAM((dev < kUartDev_End) && (it_type < kUartInterrupt_End));
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if((dev < kUartDev_End) && (it_type < kUartInterrupt_End))
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{
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uart_int_item[dev].call[it_type] = call;
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drv_misc_set_nvic(stm32_uart[dev].irq, priority);
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// stm32_uart[dev].reg->CR1 |= uart_irq_flag[it_type];
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res = kKitResult_Ok;
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}
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else
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{
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res = kKitResult_ParamErr;
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}
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return res;
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}
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void drv_uart_ctrl_interrupt(UartDev dev, UartInterrupt it_type, bool is_enable)
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{
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KIT_ASSERT_PARAM((dev < kUartDev_End) && (it_type < kUartInterrupt_End));
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if(is_enable == true)
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{
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stm32_uart[dev].reg->CR1 |= uart_irq_flag[it_type];
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}
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else
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{
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stm32_uart[dev].reg->CR1 &= ~uart_irq_flag[it_type];
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}
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}
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KitResult drv_uart_set_dma(UartDev dev, bool is_rx_en, bool is_tx_en)
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{
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uint32_t tmp;
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KitResult res= kKitResult_Ok;
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USART_TypeDef *reg;
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KIT_ASSERT_PARAM(dev < kUartDev_End);
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if(dev < kUartDev_End)
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{
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reg = stm32_uart[dev].reg;
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tmp = reg->CR3;
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if(is_rx_en == true)
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{
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drv_dma_init(stm32_uart[dev].rx_dma_stream, stm32_uart[dev].dma_channel, DMA_CFG_DATA_DIR_P2M|DMA_CFG_CYCLE_NONE|DMA_CFG_DATA_M_I|DMA_CFG_DATA_P_N|DMA_CFG_DATA_LEN_1B, (uint32_t)®->DR);
|
||
tmp |= USART_CR3_DMAR;
|
||
}
|
||
else
|
||
{
|
||
tmp &= ~USART_CR3_DMAR;
|
||
}
|
||
|
||
if(is_tx_en == true)
|
||
{
|
||
drv_dma_init(stm32_uart[dev].tx_dma_stream, stm32_uart[dev].dma_channel, DMA_CFG_DATA_DIR_M2P|DMA_CFG_CYCLE_NONE|DMA_CFG_DATA_M_I|DMA_CFG_DATA_P_N|DMA_CFG_DATA_LEN_1B, (uint32_t)®->DR);
|
||
tmp |= USART_CR3_DMAT;
|
||
}
|
||
else
|
||
{
|
||
tmp &= ~USART_CR3_DMAT;
|
||
}
|
||
reg->CR3 = tmp;
|
||
}
|
||
else
|
||
{
|
||
res = kKitResult_OutRange;
|
||
}
|
||
|
||
return res;
|
||
}
|
||
|
||
static void uart_irq_handler(UartDev dev)
|
||
{
|
||
uint8_t data;
|
||
UartIntItem *item = &uart_int_item[dev];
|
||
USART_TypeDef* reg = stm32_uart[dev].reg;
|
||
/* USART接收溢出中断ORE清标志位,只要使能RXNE,ORE中断默认使能*/
|
||
if(((reg->CR1 & USER_CR1_RXNEIE) == USER_CR1_RXNEIE)
|
||
&& (((reg->SR & USART_FLAG_RXNE) != 0) || ((reg->SR & USART_FLAG_ORE) != 0)))
|
||
{
|
||
data = reg->DR;
|
||
if(item->call[kUartInterrupt_Rx] != NULL)
|
||
{
|
||
item->call[kUartInterrupt_Rx](kKitResult_Ok, &data);
|
||
}
|
||
}
|
||
else if((reg->SR & USER_SR1_TCIE) != 0)
|
||
{
|
||
//清除标志位
|
||
stm32_uart[dev].reg->SR &= ~USART_SR_TC;
|
||
//关闭发送完成中断
|
||
stm32_uart[dev].reg->CR1 &= ~USER_CR1_TCIE;
|
||
if(item->call[kUartInterrupt_Tx] != NULL)
|
||
{
|
||
item->call[kUartInterrupt_Tx](kKitResult_Ok, &dev);
|
||
}
|
||
}
|
||
else if((reg->SR & USER_SR1_TXEIE) != 0)
|
||
{
|
||
if(item->send_pos < item->buf_len)
|
||
{
|
||
reg->DR = item->send_buf[item->send_pos++];
|
||
if(item->send_pos >= item->buf_len)
|
||
{
|
||
//关闭发送缓冲区空中断
|
||
stm32_uart[dev].reg->CR1 &= ~USER_CR1_TXEIE;
|
||
//打开发送完成中断
|
||
stm32_uart[dev].reg->CR1 |= USER_CR1_TCIE;
|
||
}
|
||
}
|
||
else
|
||
{
|
||
//关闭发送缓冲区空中断
|
||
stm32_uart[dev].reg->CR1 &= ~USER_CR1_TXEIE;
|
||
//打开发送完成中断
|
||
stm32_uart[dev].reg->CR1 |= USER_CR1_TCIE;
|
||
}
|
||
}
|
||
}
|
||
|
||
void USART1_IRQHandler(void)
|
||
{
|
||
uart_irq_handler(kUartDev_1);
|
||
}
|
||
|
||
void USART2_IRQHandler(void)
|
||
{
|
||
uart_irq_handler(kUartDev_2);
|
||
}
|
||
|
||
void USART3_IRQHandler(void)
|
||
{
|
||
uart_irq_handler(kUartDev_3);
|
||
}
|
||
|
||
void UART4_IRQHandler(void)
|
||
{
|
||
uart_irq_handler(kUartDev_4);
|
||
}
|
||
|
||
void UART5_IRQHandler(void)
|
||
{
|
||
uart_irq_handler(kUartDev_5);
|
||
}
|
||
|
||
void USART6_IRQHandler(void)
|
||
{
|
||
uart_irq_handler(kUartDev_6);
|
||
}
|
||
|
||
#if defined(STM32F429_439xx)
|
||
void UART7_IRQHandler(void)
|
||
{
|
||
uart_irq_handler(kUartDev_7);
|
||
}
|
||
#endif
|
||
|