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/*
* Copyright (c) 2020-2022, Bluetrum Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2020-11-20 greedyhao first version
* 2022-06-08 THEWON first version for serialX
*/
#include "board.h"
#include <drv_usartX.h>
#ifdef RT_USING_SERIAL
//#define DRV_DEBUG
#define LOG_TAG "drv.usart"
#include <drv_log.h>
enum
{
#ifdef BSP_USING_UART0
UART0_INDEX,
#endif
#ifdef BSP_USING_UART1
UART1_INDEX,
#endif
#ifdef BSP_USING_UART2
UART2_INDEX,
#endif
};
static struct ab32_uart_config uart_config[] =
{
#ifdef BSP_USING_UART0
{
.name = "uart0",
.instance = UART0_BASE,
.mode = UART_MODE_TX_RX | UART_MODE_1LINE,
},
#endif
#ifdef BSP_USING_UART1
{
.name = "uart1",
.instance = UART1_BASE,
.mode = UART_MODE_TX_RX,
},
#endif
#ifdef BSP_USING_UART2
{
.name = "uart2",
.instance = UART2_BASE,
.mode = UART_MODE_TX_RX,
}
#endif
};
static struct ab32_uart uart_obj[sizeof(uart_config) / sizeof(uart_config[0])] = {0};
static rt_err_t ab32_init(struct rt_serial_device *serial)
{
struct ab32_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ab32_uart, serial);
uart->handle.instance = uart->uart_config->instance;
uart->handle.init.baud = serial->config->baud_rate;
uart->handle.init.mode = uart->uart_config->mode;
switch (serial->config->data_bits)
{
case DATA_BITS_8:
uart->handle.init.word_len = UART_WORDLENGTH_8B;
break;
case DATA_BITS_9:
uart->handle.init.word_len = UART_WORDLENGTH_9B;
break;
default:
uart->handle.init.word_len = UART_WORDLENGTH_8B;
break;
}
switch (serial->config->stop_bits)
{
case STOP_BITS_1:
uart->handle.init.stop_bits = UART_STOPBITS_1;
break;
case STOP_BITS_2:
uart->handle.init.stop_bits = UART_STOPBITS_2;
break;
default:
uart->handle.init.stop_bits = UART_STOPBITS_1;
break;
}
hal_uart_init(&uart->handle);
return RT_EOK;
}
static rt_err_t ab32_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
{
struct ab32_uart *uart;
RT_ASSERT(serial != RT_NULL);
RT_ASSERT(cfg != RT_NULL);
uart = rt_container_of(serial, struct ab32_uart, serial);
uart->handle.instance = uart->uart_config->instance;
uart->handle.init.baud = cfg->baud_rate;
uart->handle.init.mode = uart->uart_config->mode;
switch (cfg->data_bits)
{
case DATA_BITS_8:
uart->handle.init.word_len = UART_WORDLENGTH_8B;
break;
case DATA_BITS_9:
uart->handle.init.word_len = UART_WORDLENGTH_9B;
break;
default:
uart->handle.init.word_len = UART_WORDLENGTH_8B;
break;
}
switch (cfg->stop_bits)
{
case STOP_BITS_1:
uart->handle.init.stop_bits = UART_STOPBITS_1;
break;
case STOP_BITS_2:
uart->handle.init.stop_bits = UART_STOPBITS_2;
break;
default:
uart->handle.init.stop_bits = UART_STOPBITS_1;
break;
}
hal_uart_init(&uart->handle);
return RT_EOK;
}
static rt_err_t ab32_control(struct rt_serial_device *serial, int cmd, void *arg)
{
struct ab32_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ab32_uart, serial);
switch (cmd)
{
case RT_DEVICE_CTRL_OPEN:
uart->intTxing = RT_FALSE;
break;
/* disable interrupt */
case RT_DEVICE_CTRL_CLR_INT:
hal_uart_control(uart->handle.instance, UART_RXIT_ENABLE, HAL_DISABLE);
break;
/* enable interrupt */
case RT_DEVICE_CTRL_SET_INT:
hal_uart_clrflag(uart->handle.instance, UART_FLAG_RXPND);
hal_uart_control(uart->handle.instance, UART_RXIT_ENABLE, HAL_ENABLE);
break;
case RT_DEVICE_CTRL_CLOSE:
hal_uart_deinit(uart->handle.instance);
break;
}
return RT_EOK;
}
static int ab32_putc(struct rt_serial_device *serial, char ch)
{
struct ab32_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ab32_uart, serial);
hal_uart_write(uart->handle.instance, ch);
return 1;
}
static int ab32_getc(struct rt_serial_device *serial)
{
int ch;
struct ab32_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ab32_uart, serial);
ch = -1;
if (hal_uart_getflag(UART0_BASE, UART_FLAG_RXPND)) {
ch = hal_uart_read(uart->handle.instance);
hal_uart_clrflag(UART0_BASE, UART_FLAG_RXPND);
}
return ch;
}
static int ab32_flush(struct rt_serial_device *serial)
{
struct ab32_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ab32_uart, serial);
while(hal_uart_getflag(uart->handle.instance, UART_FLAG_TXPND) == 0);
}
rt_bool_t ab32_int_txing(struct rt_serial_device *serial)
{
struct ab32_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ab32_uart, serial);
return uart->intTxing;
}
static void ab32_start_tx(struct rt_serial_device *serial, rt_uint8_t ch)
{
struct ab32_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ab32_uart, serial);
uart->intTxing = RT_TRUE;
hal_uart_control(uart->handle.instance, UART_TXIT_ENABLE, HAL_ENABLE);
hal_uart_write(uart->handle.instance, ch);
}
static void ab32_stop_tx(struct rt_serial_device *serial)
{
struct ab32_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ab32_uart, serial);
hal_uart_control(uart->handle.instance, UART_TXIT_ENABLE, HAL_DISABLE);
uart->intTxing = RT_FALSE;
}
RT_SECTION(".irq.usart")
static void uart_isr(int vector, void *param)
{
rt_interrupt_enter();
#ifdef BSP_USING_UART0
if(hal_uart_getflag(UART0_BASE, UART_FLAG_RXPND)) //RX one byte finish
{
rt_hw_serial_isr(&(uart_obj[UART0_INDEX].serial), RT_SERIAL_EVENT_RX_IND);
hal_uart_clrflag(UART0_BASE, UART_FLAG_RXPND);
}
if(hal_uart_getflag(UART0_BASE, UART_FLAG_TXPND)) //TX one byte finish
{
rt_hw_serial_isr(&(uart_obj[UART0INDEX].serial), RT_SERIAL_EVENT_TX_DONE);
hal_uart_clrflag(UART0_BASE, UART_FLAG_TXPND);
}
#endif
#ifdef BSP_USING_UART1
if(hal_uart_getflag(UART1_BASE, UART_FLAG_RXPND)) //RX one byte finish
{
rt_hw_serial_isr(&(uart_obj[UART1_INDEX].serial), RT_SERIAL_EVENT_RX_IND);
hal_uart_clrflag(UART1_BASE, UART_FLAG_RXPND);
}
if(hal_uart_getflag(UART1_BASE, UART_FLAG_TXPND)) //TX one byte finish
{
rt_hw_serial_isr(&(uart_obj[UART1_INDEX].serial), RT_SERIAL_EVENT_TX_DONE);
hal_uart_clrflag(UART1_BASE, UART_FLAG_TXPND);
}
#endif
#ifdef BSP_USING_UART2
if(hal_uart_getflag(UART2_BASE, UART_FLAG_RXPND)) //RX one byte finish
{
rt_hw_serial_isr(&(uart_obj[UART2_INDEX].serial), RT_SERIAL_EVENT_RX_IND);
hal_uart_clrflag(UART2_BASE, UART_FLAG_RXPND);
}
if(hal_uart_getflag(UART2_BASE, UART_FLAG_TXPND)) //TX one byte finish
{
rt_hw_serial_isr(&(uart_obj[UART2_INDEX].serial), RT_SERIAL_EVENT_TX_DONE);
hal_uart_clrflag(UART2_BASE, UART_FLAG_TXPND);
}
#endif
rt_interrupt_leave();
}
#ifdef HUART_ENABLE
RT_SECTION(".irq.huart")
void huart_timer_isr(void)
{
huart_if_rx_ovflow();
if (0 == huart_get_rxcnt()) {
return;
}
}
#else
RT_SECTION(".irq.huart")
void huart_timer_isr(void)
{
}
#endif
static const struct rt_uart_ops ab32_uart_ops =
{
.init = ab32_init,
.configure = ab32_configure,
.control = ab32_control,
.putc = ab32_putc,
.getc = ab32_getc,
.flush = ab32_flush,
.is_int_txing = ab32_int_txing,
.start_tx = ab32_start_tx,
.stop_tx = ab32_stop_tx,
};
int rt_hw_usart_init(void)
{
rt_size_t obj_num = sizeof(uart_obj) / sizeof(struct ab32_uart);
rt_err_t result = 0;
rt_hw_interrupt_install(IRQ_UART0_2_VECTOR, uart_isr, RT_NULL, "ut_isr");
for (int i = 0; i < obj_num; i++)
{
/* init UART object */
uart_obj[i].uart_config = &uart_config[i];
uart_obj[i].serial.ops = &ab32_uart_ops;
/* register UART device */
result = rt_hw_serial_register(&uart_obj[i].serial, uart_obj[i].uart_config->name,
RT_DEVICE_FLAG_RDWR
| RT_DEVICE_FLAG_INT_RX
| RT_DEVICE_FLAG_INT_TX
, RT_NULL);
RT_ASSERT(result == RT_EOK);
}
return result;
}
#endif
|
