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Make Uart driver universal

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This commit is contained in:
Mario Hüttel
2020-02-24 18:50:09 +01:00
parent 4bc85d474f
commit 5012b726cd
6 changed files with 208 additions and 104 deletions
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66
stm-firmware/include/stm-periph/uart.h
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@@ -18,57 +18,55 @@
* If not, see <http://www.gnu.org/licenses/>.
*/
#include <stm32/stm32f4xx.h>
#include <stm-periph/dma-ring-buffer.h>
#include <stdint.h>
#include <stddef.h>
#ifndef UART_UART_H_
#define UART_UART_H_
#define UART_RECEIVE_DMA_STREAM DMA2_Stream5
struct stm_uart {
USART_TypeDef *uart_dev;
uint32_t brr_val;
uint8_t base_dma_num;
DMA_Stream_TypeDef *dma_tx_stream;
uint8_t dma_tx_trigger_channel;
DMA_Stream_TypeDef *dma_rx_stream;
uint8_t dma_rx_trigger_channel;
char *dma_rx_buff;
char *dma_tx_buff;
size_t rx_buff_count;
size_t tx_buff_count;
volatile uint32_t *rcc_reg;
uint8_t rcc_bit_no;
struct dma_ring_buffer_to_mem rx_ring_buff;
struct dma_ring_buffer_to_periph tx_ring_buff;
uint8_t tx : 1;
uint8_t rx : 1;
};
#define UART_SEND_DMA_STREAM DMA2_Stream7
int uart_init(struct stm_uart *uart);
#define UART_PERIPH USART1
#define UART_RCC_MASK RCC_APB2ENR_USART1EN
void uart_disable(struct stm_uart *uart);
#ifdef DEBUGBUILD
void uart_send_char(struct stm_uart *uart, char c);
#define UART_PORT GPIOA
#define UART_PORT_RCC_MASK RCC_AHB1ENR_GPIOAEN
#define UART_RX_PIN 10
#define UART_TX_PIN 9
#define UART_RX_PIN_ALTFUNC 7
#define UART_TX_PIN_ALTFUNC 7
#else
void uart_send_array(struct stm_uart *uart, const char *data, uint32_t len);
#endif
void uart_send_string(struct stm_uart *uart, const char *string);
/* UART_DIV is 45.5625 => 115200 @ 84 MHz */
#define UART_DIV_FRACTION 9U /* Equals 9/16 = 0.5625 */
#define UART_DIV_MANTISSA 45U /* Equals 45 */
void uart_send_array_with_dma(struct stm_uart *uart, const char *data, uint32_t len);
#define UART_BRR_REG_VALUE ((UART_DIV_MANTISSA<<4) | UART_DIV_FRACTION);
void uart_send_string_with_dma(struct stm_uart *uart, const char *string);
void initUART();
void sendChar(char c);
void sendString(char* s, int count);
int uart_receive_data_with_dma(struct stm_uart *uart, const char **data, size_t *len);
char uart_get_char(struct stm_uart *uart);
void uart_init_with_dma();
int uart_check_rx_avail(struct stm_uart *uart);
void uart_disable();
void uart_send_char(char c);
void uart_send_array(const char *data, uint32_t len);
void uart_send_string(const char *string);
void uart_send_array_with_dma(const char *data, uint32_t len);
void uart_send_string_with_dma(const char *string);
int uart_receive_data_with_dma(const char **data, size_t *len);
void uart_tx_dma_complete_int_callback(struct stm_uart *uart);
#endif /* UART_UART_H_ */