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Factoring of USART driver for GD32VF103.

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This commit is contained in:
NIIBE Yutaka
2019-12-03 13:38:47 +09:00
parent 2de23d5fd6
commit 1dbd9811c2
8 changed files with 600 additions and 482 deletions
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27
contrib/usart-stm32l4.c
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@@ -3,7 +3,7 @@
#include <chopstx.h>
#include <mcu/stm32l.h>
#include <contrib/usart.h>
#include <contrib/usart-impl.h>
#define RCC_APB1_1_USART2 (1 << 17)
#define RCC_APB2_USART1 (1 << 14)
@@ -84,20 +84,6 @@ static int usart2_tx_ready;
#define USART_DEVNO_START 1
#define USART_DEVNO_END 2
struct usart {
struct USART *USART;
struct chx_intr *intr;
uint8_t irq_num;
struct usart_stat *stat;
struct rb *rb_a2h;
struct rb *rb_h2a;
uint8_t *buf_a2h;
uint8_t *buf_h2a;
chopstx_poll_cond_t *app_write_event;
int *tx_ready;
};
static const struct usart usart_array[] =
{
{ USART1, &usart1_intr, INTR_REQ_USART1,
@@ -109,17 +95,6 @@ static const struct usart usart_array[] =
buf_usart2_rb_h2a, &usart2_app_write_event, &usart2_tx_ready,
},
};
#define NUM_USART ((int)(sizeof (usart_array) / sizeof (struct usart)))
static int handle_intr (struct USART *USARTx, struct rb *rb2a, struct usart_stat *stat);
static int handle_tx (struct USART *USARTx, struct rb *rb2h, struct usart_stat *stat);
static void usart_config_recv_enable (struct USART *USARTx, int on);
struct brr_setting {
uint8_t baud_spec;
uint32_t brr_value;
};
#define NUM_BAUD (int)(sizeof (brr_table) / sizeof (struct brr_setting))
/* We assume 40MHz f_CK */
static const struct brr_setting brr_table[] = {