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/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-07-29 KyleChan first version
* 2022-06-08 THEWON first version for serialX
*/
#include <drv_usartX.h>
#ifdef RT_USING_SERIAL_X
//#define DRV_DEBUG
#define DBG_TAG "drv.usart"
#ifdef DRV_DEBUG
#define DBG_LVL DBG_LOG
#else
#define DBG_LVL DBG_INFO
#endif /* DRV_DEBUG */
#include <rtdbg.h>
/* SCI SCR register bit masks */
#define SCI_SCR_TEIE_MASK (0x04U) ///< Transmit End Interrupt Enable
#define SCI_SCR_RE_MASK (0x10U) ///< Receive Enable
#define SCI_SCR_TE_MASK (0x20U) ///< Transmit Enable
#define SCI_SCR_RIE_MASK (0x40U) ///< Receive Interrupt Enable
#define SCI_SCR_TIE_MASK (0x80U) ///< Transmit Interrupt Enable
static struct ra_uart_config uart_config[] =
{
#ifdef BSP_USING_UART0
UART0_CONFIG,
#endif
#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_UART9
UART9_CONFIG,
#endif
};
enum
{
#ifdef BSP_USING_UART0
UART0_INDEX,
#endif
#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_UART9
UART9_INDEX,
#endif
};
static struct ra_uart uart_obj[sizeof(uart_config) / sizeof(uart_config[0])] = {0};
static void ra_uart_get_config(void)
{
struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
#ifdef BSP_USING_UART0
uart_obj[UART0_INDEX].serial.config = config;
#endif
#ifdef BSP_USING_UART1
uart_obj[UART1_INDEX].serial.config = config;
#endif
#ifdef BSP_USING_UART2
uart_obj[UART2_INDEX].serial.config = config;
#endif
#ifdef BSP_USING_UART3
uart_obj[UART3_INDEX].serial.config = config;
#endif
#ifdef BSP_USING_UART4
uart_obj[UART4_INDEX].serial.config = config;
#endif
#ifdef BSP_USING_UART6
uart_obj[UART6_INDEX].serial.config = config;
#endif
#ifdef BSP_USING_UART7
uart_obj[UART7_INDEX].serial.config = config;
uart_config[UART7_INDEX].uart_cfg = g_uart7_cfg;
#endif
#ifdef BSP_USING_UART8
uart_obj[UART8_INDEX].serial.config = config;
#endif
#ifdef BSP_USING_UART9
uart_obj[UART9_INDEX].serial.config = config;
#endif
}
/*
* UART interface
*/
static rt_err_t ra_uart_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
{
struct ra_uart *uart;
RT_ASSERT(serial != RT_NULL);
RT_ASSERT(cfg != RT_NULL);
fsp_err_t err = FSP_SUCCESS;
uart = rt_container_of(serial, struct ra_uart, serial);
RT_ASSERT(uart != RT_NULL);
if (cfg->data_bits == DATA_BITS_7)
{
uart->uart_config->uart_cfg.data_bits = UART_DATA_BITS_7;
}
else if (cfg->data_bits == DATA_BITS_8)
{
uart->uart_config->uart_cfg.data_bits = UART_DATA_BITS_8;
}
else if (cfg->data_bits == DATA_BITS_9)
{
uart->uart_config->uart_cfg.data_bits = UART_DATA_BITS_9;
}
if (cfg->stop_bits == STOP_BITS_1)
{
uart->uart_config->uart_cfg.stop_bits = UART_STOP_BITS_1;
}
else if (cfg->stop_bits == STOP_BITS_2)
{
uart->uart_config->uart_cfg.stop_bits = UART_STOP_BITS_2;
}
if (cfg->parity == PARITY_NONE)
{
uart->uart_config->uart_cfg.parity = UART_PARITY_OFF;
}
else if (cfg->parity == PARITY_ODD)
{
uart->uart_config->uart_cfg.parity = UART_PARITY_ODD;
}
else if (cfg->parity == PARITY_EVEN)
{
uart->uart_config->uart_cfg.parity = UART_PARITY_EVEN;
}
err = R_SCI_UART_Open(uart->uart_config->p_api_ctrl, &uart->uart_config->uart_cfg);
if (FSP_SUCCESS != err)
{
return -RT_ERROR;
}
return RT_EOK;
}
/*
* Initialize UART interface
*/
static rt_err_t ra_uart_init(struct rt_serial_device *serial)
{
if (ra_uart_configure(serial, &serial->config) != RT_EOK)
{
return -RT_ERROR;
}
return RT_EOK;
}
static rt_err_t ra_uart_control(struct rt_serial_device *serial, int cmd, void *arg)
{
struct ra_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ra_uart, serial);
switch (cmd) {
case RT_DEVICE_CTRL_OPEN:
uart->intTxing = RT_FALSE;
break;
case RT_DEVICE_CTRL_CLOSE:
R_SCI_UART_Close(uart->uart_config->p_api_ctrl);
break;
case RT_DEVICE_CTRL_CLR_INT:
/* disable interrupt */
break;
case RT_DEVICE_CTRL_SET_INT:
/* enable interrupt */
break;
/* USART config */
case RT_DEVICE_CTRL_CONFIG :
break;
default :
break;
}
return RT_EOK;
}
static int ra_uart_putc(struct rt_serial_device *serial, char c, rt_bool_t useint)
{
struct ra_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ra_uart, serial);
sci_uart_instance_ctrl_t *p_ctrl = (sci_uart_instance_ctrl_t *)uart->uart_config->p_api_ctrl;
while ((p_ctrl->p_reg->SSR_b.TDRE) == 0);
p_ctrl->p_reg->TDR = c;
if (useint) {
p_ctrl->p_reg->SCR |= SCI_SCR_TE_MASK;
p_ctrl->p_reg->SCR |= SCI_SCR_TIE_MASK;
}
return RT_EOK;
}
static int ra_uart_getc(struct rt_serial_device *serial)
{
int ch;
struct ra_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ra_uart, serial);
sci_uart_instance_ctrl_t *p_ctrl = (sci_uart_instance_ctrl_t *)uart->uart_config->p_api_ctrl;
ch = -1;
if ((p_ctrl->p_reg->SSR_b.RDRF) == 1) {
ch = p_ctrl->p_reg->RDR & 0xFF;
p_ctrl->p_reg->SSR_b.RDRF = 0;
}
return ch;
}
static int ra_uart_flush(struct rt_serial_device *serial)
{
struct ra_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ra_uart, serial);
sci_uart_instance_ctrl_t *p_ctrl = (sci_uart_instance_ctrl_t *)uart->uart_config->p_api_ctrl;
while (!((p_ctrl->p_reg->SSR_b.TEND) == 1 && (p_ctrl->p_reg->SSR_b.TDRE) == 1));
return 0;
}
rt_bool_t ra_int_txing(struct rt_serial_device *serial)
{
struct ra_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ra_uart, serial);
return uart->intTxing;
}
static void ra_start_tx(struct rt_serial_device *serial, rt_uint8_t ch)
{
struct ra_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ra_uart, serial);
sci_uart_instance_ctrl_t *p_ctrl = (sci_uart_instance_ctrl_t *)uart->uart_config->p_api_ctrl;
uart->intTxing = RT_TRUE;
p_ctrl->p_reg->SCR &= ~(SCI_SCR_TIE_MASK | SCI_SCR_TEIE_MASK);
p_ctrl->p_reg->TDR = ch;
p_ctrl->p_reg->SCR |= SCI_SCR_TE_MASK;
/* Trigger a TXI interrupt. This triggers the transfer instance or a TXI interrupt if the transfer instance is
* not used. */
p_ctrl->p_reg->SCR |= SCI_SCR_TIE_MASK;
}
static void ra_stop_tx(struct rt_serial_device *serial)
{
struct ra_uart *uart;
RT_ASSERT(serial != RT_NULL);
uart = rt_container_of(serial, struct ra_uart, serial);
sci_uart_instance_ctrl_t *p_ctrl = (sci_uart_instance_ctrl_t *)uart->uart_config->p_api_ctrl;
p_ctrl->p_reg->SCR &= ~(SCI_SCR_TIE_MASK | SCI_SCR_TEIE_MASK);
uart->intTxing = RT_FALSE;
}
#ifdef BSP_USING_UART0
void user_uart0_callback(uart_callback_args_t *p_args)
{
rt_interrupt_enter();
struct rt_serial_device *serial = &uart_obj[UART0_INDEX].serial;
RT_ASSERT(serial != RT_NULL);
if (UART_EVENT_RX_CHAR == p_args->event)
{
struct rt_serial_rx_fifo *rx_fifo;
rx_fifo = (struct rt_serial_rx_fifo *) serial->serial_rx;
RT_ASSERT(rx_fifo != RT_NULL);
rt_ringbuffer_putchar(&(rx_fifo->rb), (rt_uint8_t)p_args->data);
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
}
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_UART1
void user_uart1_callback(uart_callback_args_t *p_args)
{
rt_interrupt_enter();
struct rt_serial_device *serial = &uart_obj[UART1_INDEX].serial;
RT_ASSERT(serial != RT_NULL);
if (UART_EVENT_RX_CHAR == p_args->event)
{
struct rt_serial_rx_fifo *rx_fifo;
rx_fifo = (struct rt_serial_rx_fifo *) serial->serial_rx;
RT_ASSERT(rx_fifo != RT_NULL);
rt_ringbuffer_putchar(&(rx_fifo->rb), (rt_uint8_t)p_args->data);
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
}
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_UART2
void user_uart2_callback(uart_callback_args_t *p_args)
{
rt_interrupt_enter();
struct rt_serial_device *serial = &uart_obj[UART2_INDEX].serial;
RT_ASSERT(serial != RT_NULL);
if (UART_EVENT_RX_CHAR == p_args->event)
{
struct rt_serial_rx_fifo *rx_fifo;
rx_fifo = (struct rt_serial_rx_fifo *) serial->serial_rx;
RT_ASSERT(rx_fifo != RT_NULL);
rt_ringbuffer_putchar(&(rx_fifo->rb), (rt_uint8_t)p_args->data);
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
}
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_UART3
void user_uart3_callback(uart_callback_args_t *p_args)
{
rt_interrupt_enter();
struct rt_serial_device *serial = &uart_obj[UART3_INDEX].serial;
RT_ASSERT(serial != RT_NULL);
if (UART_EVENT_RX_CHAR == p_args->event)
{
struct rt_serial_rx_fifo *rx_fifo;
rx_fifo = (struct rt_serial_rx_fifo *) serial->serial_rx;
RT_ASSERT(rx_fifo != RT_NULL);
rt_ringbuffer_putchar(&(rx_fifo->rb), (rt_uint8_t)p_args->data);
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
}
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_UART4
void user_uart4_callback(uart_callback_args_t *p_args)
{
rt_interrupt_enter();
struct rt_serial_device *serial = &uart_obj[UART4_INDEX].serial;
RT_ASSERT(serial != RT_NULL);
if (UART_EVENT_RX_CHAR == p_args->event)
{
struct rt_serial_rx_fifo *rx_fifo;
rx_fifo = (struct rt_serial_rx_fifo *) serial->serial_rx;
RT_ASSERT(rx_fifo != RT_NULL);
rt_ringbuffer_putchar(&(rx_fifo->rb), (rt_uint8_t)p_args->data);
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
}
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_UART5
void user_uart5_callback(uart_callback_args_t *p_args)
{
rt_interrupt_enter();
struct rt_serial_device *serial = &uart_obj[UART5_INDEX].serial;
RT_ASSERT(serial != RT_NULL);
if (UART_EVENT_RX_CHAR == p_args->event)
{
struct rt_serial_rx_fifo *rx_fifo;
rx_fifo = (struct rt_serial_rx_fifo *) serial->serial_rx;
RT_ASSERT(rx_fifo != RT_NULL);
rt_ringbuffer_putchar(&(rx_fifo->rb), (rt_uint8_t)p_args->data);
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
}
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_UART6
void user_uart6_callback(uart_callback_args_t *p_args)
{
rt_interrupt_enter();
struct rt_serial_device *serial = &uart_obj[UART6_INDEX].serial;
RT_ASSERT(serial != RT_NULL);
if (UART_EVENT_RX_CHAR == p_args->event)
{
struct rt_serial_rx_fifo *rx_fifo;
rx_fifo = (struct rt_serial_rx_fifo *) serial->serial_rx;
RT_ASSERT(rx_fifo != RT_NULL);
rt_ringbuffer_putchar(&(rx_fifo->rb), (rt_uint8_t)p_args->data);
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
}
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_UART7
void user_uart7_callback(uart_callback_args_t *p_args)
{
rt_interrupt_enter();
struct rt_serial_device *serial = &uart_obj[UART7_INDEX].serial;
RT_ASSERT(serial != RT_NULL);
if (UART_EVENT_RX_CHAR == p_args->event)
{
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
} else if (UART_EVENT_TX_COMPLETE == p_args->event) {
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_TX_DONE);
}
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_UART8
void user_uart8_callback(uart_callback_args_t *p_args)
{
rt_interrupt_enter();
struct rt_serial_device *serial = &uart_obj[UART8_INDEX].serial;
RT_ASSERT(serial != RT_NULL);
if (UART_EVENT_RX_CHAR == p_args->event)
{
struct rt_serial_rx_fifo *rx_fifo;
rx_fifo = (struct rt_serial_rx_fifo *) serial->serial_rx;
RT_ASSERT(rx_fifo != RT_NULL);
rt_ringbuffer_putchar(&(rx_fifo->rb), (rt_uint8_t)p_args->data);
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
}
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_UART9
void user_uart9_callback(uart_callback_args_t *p_args)
{
rt_interrupt_enter();
struct rt_serial_device *serial = &uart_obj[UART9_INDEX].serial;
RT_ASSERT(serial != RT_NULL);
if (UART_EVENT_RX_CHAR == p_args->event)
{
struct rt_serial_rx_fifo *rx_fifo;
rx_fifo = (struct rt_serial_rx_fifo *) serial->serial_rx;
RT_ASSERT(rx_fifo != RT_NULL);
rt_ringbuffer_putchar(&(rx_fifo->rb), (rt_uint8_t)p_args->data);
rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
}
rt_interrupt_leave();
}
#endif
static const struct rt_uart_ops ra_uart_ops =
{
.init = ra_uart_init,
.configure = ra_uart_configure,
.control = ra_uart_control,
.putc = ra_uart_putc,
.getc = ra_uart_getc,
.flush = ra_uart_flush,
.is_int_txing = ra_int_txing,
.start_tx = ra_start_tx,
.stop_tx = ra_stop_tx,
};
int rt_hw_usart_init(void)
{
rt_err_t result = 0;
rt_size_t obj_num = sizeof(uart_obj) / sizeof(struct ra_uart);
ra_uart_get_config();
for (int i = 0; i < obj_num; i++)
{
/* init UART object */
uart_obj[i].uart_config = &uart_config[i];
uart_obj[i].serial.ops = &ra_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,
NULL);
RT_ASSERT(result == RT_EOK);
}
return result;
}
#endif /* RT_USING_SERIAL_X */
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