279 lines
8.4 KiB
C
279 lines
8.4 KiB
C
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/*
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* Copyright (c) 2020 AIIT XUOS Lab
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* XiUOS is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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/**
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* @file connect_usart.c
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* @brief support aiit-arm32-board usart function and register to bus framework
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* @version 1.0
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* @author AIIT XUOS Lab
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* @date 2021-04-25
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*/
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#include <xiuos.h>
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#include <device.h>
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#include <encoding.h>
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#include <platform.h>
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#include <arch_interrupt.h>
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#include <uart.h>
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#include <board.h>
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static void SerialCfgParamCheck(struct SerialCfgParam *serial_cfg_default, struct SerialCfgParam *serial_cfg_new)
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{
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struct SerialDataCfg *data_cfg_default = &serial_cfg_default->data_cfg;
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struct SerialDataCfg *data_cfg_new = &serial_cfg_new->data_cfg;
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if((data_cfg_default->serial_baud_rate != data_cfg_new->serial_baud_rate) && (data_cfg_new->serial_baud_rate))
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{
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data_cfg_default->serial_baud_rate = data_cfg_new->serial_baud_rate;
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}
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if((data_cfg_default->serial_bit_order != data_cfg_new->serial_bit_order) && (data_cfg_new->serial_bit_order))
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{
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data_cfg_default->serial_bit_order = data_cfg_new->serial_bit_order;
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}
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if((data_cfg_default->serial_buffer_size != data_cfg_new->serial_buffer_size) && (data_cfg_new->serial_buffer_size))
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{
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data_cfg_default->serial_buffer_size = data_cfg_new->serial_buffer_size;
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}
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if((data_cfg_default->serial_data_bits != data_cfg_new->serial_data_bits) && (data_cfg_new->serial_data_bits))
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{
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data_cfg_default->serial_data_bits = data_cfg_new->serial_data_bits;
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}
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if((data_cfg_default->serial_invert_mode != data_cfg_new->serial_invert_mode) && (data_cfg_new->serial_invert_mode))
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{
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data_cfg_default->serial_invert_mode = data_cfg_new->serial_invert_mode;
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}
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if((data_cfg_default->serial_parity_mode != data_cfg_new->serial_parity_mode) && (data_cfg_new->serial_parity_mode))
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{
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data_cfg_default->serial_parity_mode = data_cfg_new->serial_parity_mode;
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}
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if((data_cfg_default->serial_stop_bits != data_cfg_new->serial_stop_bits) && (data_cfg_new->serial_stop_bits))
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{
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data_cfg_default->serial_stop_bits = data_cfg_new->serial_stop_bits;
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}
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}
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static void usart_handler(int vector, void *param)
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{
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struct SerialBus *serial_bus = (struct SerialBus *)param;
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struct SerialHardwareDevice *serial_dev = (struct SerialHardwareDevice *)serial_bus->bus.owner_haldev;
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SerialSetIsr(serial_dev, SERIAL_EVENT_RX_IND);
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}
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static uint32 SerialInit(struct SerialDriver *serial_drv, struct BusConfigureInfo *configure_info)
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{
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NULL_PARAM_CHECK(serial_drv);
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struct SerialCfgParam *serial_cfg = (struct SerialCfgParam *)serial_drv->private_data;
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if(configure_info->private_data)
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{
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struct SerialCfgParam *serial_cfg_new = (struct SerialCfgParam *)configure_info->private_data;
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SerialCfgParamCheck(serial_cfg, serial_cfg_new);
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}
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GPIO_REG(GPIO_IOF_SEL) &= ~IOF0_UART0_MASK;
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GPIO_REG(GPIO_IOF_EN) |= IOF0_UART0_MASK;
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UART0_REG(UART_REG_DIV) = get_cpu_freq() / serial_cfg->data_cfg.serial_baud_rate - 1;
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UART0_REG(UART_REG_TXCTRL) |= UART_TXEN;
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UART0_REG(UART_REG_RXCTRL) |= UART_RXEN;
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UART0_REG(UART_REG_IE) = UART_IP_RXWM;
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return EOK;
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}
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static uint32 SerialConfigure(struct SerialDriver *serial_drv, int serial_operation_cmd)
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{
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NULL_PARAM_CHECK(serial_drv);
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return EOK;
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}
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static uint32 SerialDrvConfigure(void *drv, struct BusConfigureInfo *configure_info)
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{
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NULL_PARAM_CHECK(drv);
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NULL_PARAM_CHECK(configure_info);
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x_err_t ret = EOK;
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int serial_operation_cmd;
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struct SerialDriver *serial_drv = (struct SerialDriver *)drv;
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switch (configure_info->configure_cmd)
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{
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case OPE_INT:
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ret = SerialInit(serial_drv, configure_info);
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break;
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case OPE_CFG:
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serial_operation_cmd = *(int *)configure_info->private_data;
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ret = SerialConfigure(serial_drv, serial_operation_cmd);
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break;
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default:
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break;
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}
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return ret;
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}
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static int SerialPutChar(struct SerialHardwareDevice *serial_dev, char c)
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{
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while (UART0_REG(UART_REG_TXFIFO) & 0x80000000) ;
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UART0_REG(UART_REG_TXFIFO) = c;
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return 0;
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}
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static int SerialGetChar(struct SerialHardwareDevice *serial_dev)
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{
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int32_t val = UART0_REG(UART_REG_RXFIFO);
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if (val > 0)
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return (uint8_t)val;
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else
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return -1;
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}
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static const struct SerialDataCfg data_cfg_init =
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{
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.serial_baud_rate = BAUD_RATE_115200,
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.serial_data_bits = DATA_BITS_8,
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.serial_stop_bits = STOP_BITS_1,
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.serial_parity_mode = PARITY_NONE,
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.serial_bit_order = BIT_ORDER_LSB,
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.serial_invert_mode = NRZ_NORMAL,
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.serial_buffer_size = SERIAL_RB_BUFSZ,
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};
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/*manage the serial device operations*/
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static const struct SerialDrvDone drv_done =
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{
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.init = SerialInit,
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.configure = SerialConfigure,
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};
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/*manage the serial device hal operations*/
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static struct SerialHwDevDone hwdev_done =
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{
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.put_char = SerialPutChar,
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.get_char = SerialGetChar,
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};
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static int BoardSerialBusInit(struct SerialBus *serial_bus, struct SerialDriver *serial_driver, const char *bus_name, const char *drv_name)
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{
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x_err_t ret = EOK;
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/*Init the serial bus */
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ret = SerialBusInit(serial_bus, bus_name);
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if(EOK != ret)
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{
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KPrintf("InitHwUart SerialBusInit error %d\n", ret);
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return ERROR;
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}
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/*Init the serial driver*/
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ret = SerialDriverInit(serial_driver, drv_name);
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if(EOK != ret)
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{
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KPrintf("InitHwUart SerialDriverInit error %d\n", ret);
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return ERROR;
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}
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/*Attach the serial driver to the serial bus*/
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ret = SerialDriverAttachToBus(drv_name, bus_name);
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if(EOK != ret)
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{
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KPrintf("InitHwUart SerialDriverAttachToBus error %d\n", ret);
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return ERROR;
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}
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return ret;
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}
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/*Attach the serial device to the serial bus*/
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static int BoardSerialDevBend(struct SerialHardwareDevice *serial_device, void *serial_param, const char *bus_name, const char *dev_name)
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{
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x_err_t ret = EOK;
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ret = SerialDeviceRegister(serial_device, serial_param, dev_name);
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if(EOK != ret)
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{
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KPrintf("InitHwUart SerialDeviceInit device %s error %d\n", dev_name, ret);
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return ERROR;
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}
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ret = SerialDeviceAttachToBus(dev_name, bus_name);
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if(EOK != ret)
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{
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KPrintf("InitHwUart SerialDeviceAttachToBus device %s error %d\n", dev_name, ret);
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return ERROR;
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}
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return ret;
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}
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int InitHwUart(void)
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{
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x_err_t ret = EOK;
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static struct SerialBus serial_bus;
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memset(&serial_bus, 0, sizeof(struct SerialBus));
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static struct SerialDriver serial_driver;
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memset(&serial_driver, 0, sizeof(struct SerialDriver));
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static struct SerialHardwareDevice serial_device;
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memset(&serial_device, 0, sizeof(struct SerialHardwareDevice));
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static struct SerialCfgParam serial_cfg;
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memset(&serial_cfg, 0, sizeof(struct SerialCfgParam));
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static struct SerialDevParam serial_dev_param;
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memset(&serial_dev_param, 0, sizeof(struct SerialDevParam));
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serial_driver.drv_done = &drv_done;
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serial_driver.configure = &SerialDrvConfigure;
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serial_device.hwdev_done = &hwdev_done;
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serial_cfg.data_cfg = data_cfg_init;
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serial_cfg.hw_cfg.serial_register_base = UART0_CTRL_ADDR;
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serial_cfg.hw_cfg.serial_irq_interrupt = INT_UART0_BASE;
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serial_driver.private_data = (void *)&serial_cfg;
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serial_dev_param.serial_work_mode = SIGN_OPER_INT_RX;
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serial_device.haldev.private_data = (void *)&serial_dev_param;
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ret = BoardSerialBusInit(&serial_bus, &serial_driver, SERIAL_BUS_NAME, SERIAL_DRV_NAME);
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if(EOK != ret)
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{
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KPrintf("InitHwUart uarths error ret %u\n", ret);
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return ERROR;
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}
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ret = BoardSerialDevBend(&serial_device, (void *)&serial_cfg, SERIAL_BUS_NAME, SERIAL_DEVICE_NAME);
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if(EOK != ret)
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{
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KPrintf("InitHwUart uarths error ret %u\n", ret);
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return ERROR;
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}
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isrManager.done->registerIrq(serial_cfg.hw_cfg.serial_irq_interrupt, usart_handler, &serial_bus);
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isrManager.done->enableIrq(serial_cfg.hw_cfg.serial_irq_interrupt);
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return ret;
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}
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