287 lines
9.2 KiB
C
287 lines
9.2 KiB
C
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/******************************************************************************************************************************************
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* 文件名称: SWM341_usbh.c
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* 功能说明: SWM341单片机的USB主机功能驱动库
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* 技术支持: http://www.synwit.com.cn/e/tool/gbook/?bid=1
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* 注意事项:
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* 版本日期: V1.1.0 2020年11月3日
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* 升级记录:
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*
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*
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*******************************************************************************************************************************************
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* @attention
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*
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* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH CODING INFORMATION
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* REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS A RESULT, SYNWIT SHALL NOT BE HELD LIABLE
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* FOR ANY DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
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* OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION CONTAINED HEREIN IN CONN-
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* -ECTION WITH THEIR PRODUCTS.
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*
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* COPYRIGHT 2012 Synwit Technology
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*******************************************************************************************************************************************/
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#include <string.h>
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#include "SWM341.h"
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#include "SWM341_usbh.h"
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static uint32_t Speed;
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/******************************************************************************************************************************************
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* 函数名称: USBH_HW_Init()
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* 功能说明: USB Host Hardware 初始化
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* 输 入: 无
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void USBH_HW_Init(void)
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{
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SYS->USBCR = 0;
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for(int i = 0; i < CyclesPerUs; i++) __NOP();
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SYS->USBCR |= (1 << SYS_USBCR_RST48M_Pos); __DSB();
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SYS->USBCR |= (1 << SYS_USBCR_RST12M_Pos); __DSB();
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SYS->USBCR |= (1 << SYS_USBCR_RSTPLL_Pos); __DSB();
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SYS->USBCR &= ~SYS_USBCR_ROLE_Msk;
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SYS->USBCR |= (2 << SYS_USBCR_ROLE_Pos);
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SYS->USBCR |= (1 << SYS_USBCR_VBUS_Pos);
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SYS->CLKEN0 |= (0x01 << SYS_CLKEN0_USB_Pos);
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USBH->CR = USBH_CR_FLUSHFF_Msk;
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USBD->DEVCR = (0 << USBD_DEVCR_DEVICE_Pos) | // 主机模式
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(3 << USBD_DEVCR_SPEED_Pos) |
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(1 << USBD_DEVCR_CSRDONE_Pos);
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USBH->PORTSR = USBH_PORTSR_POWER_Msk;
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}
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/******************************************************************************************************************************************
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* 函数名称: USBH_ResetPort()
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* 功能说明: 复位端口
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* 输 入: 无
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void USBH_ResetPort(void)
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{
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USBH->PORTSR = USBH_PORTSR_RESET_Msk;
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}
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/******************************************************************************************************************************************
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* 函数名称: USBH_IsDeviceConnected()
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* 功能说明: 是否有设备连接到端口
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* 输 入: 无
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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uint32_t USBH_IsDeviceConnected(void)
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{
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return (USBH->PORTSR & USBH_PORTSR_CONN_Msk) ? 1 : 0;
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}
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/******************************************************************************************************************************************
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* 函数名称: USBH_IsPortEnabled()
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* 功能说明: 端口是否使能
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* 输 入: 无
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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uint32_t USBH_IsPortEnabled(void)
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{
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return (USBH->PORTSR & USBH_PORTSR_ENA_Msk) ? 1 : 0;
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}
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/******************************************************************************************************************************************
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* 函数名称: USBH_GetDeviceSpeed()
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* 功能说明: 设备速度
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* 输 入: 无
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* 输 出: uint32_t 2 低速 3 全速
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* 注意事项: 无
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******************************************************************************************************************************************/
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uint32_t USBH_GetDeviceSpeed(void)
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{
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Speed = (USBH->PORTSR & USBH_PORTSR_SPEED_Msk) ? 2 : 3;
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return Speed;
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}
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/******************************************************************************************************************************************
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* 函数名称: USBH_State()
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* 功能说明:
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* 输 入: 无
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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USBH_Resp USBH_State(void)
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{
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if(USBH->IF & USBH_IF_RXSTAT_Msk)
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{
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USBH->IF = USBH_IF_RXSTAT_Msk;
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switch(USBH->SR & USBH_SR_RESP_Msk)
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{
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case USBR_ACK:
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case USBR_NAK:
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case USBR_STALL:
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return (USBH->SR & USBH_SR_RESP_Msk);
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case USBR_ERR_PID:
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case USBR_ERR_CRC:
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case USBR_ERR_STUFF:
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case USBR_ERR_TOGGLE:
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case USBR_TIMEOUT:
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case USBR_UNEXPECTED_PID:
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return USBR_ERROR;
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}
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}
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return USBR_NO;
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}
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/******************************************************************************************************************************************
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* 函数名称: USBH_SendSetupPacket()
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* 功能说明: 发送 Setup 包
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* 输 入: 无
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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uint32_t USBH_SendSetupPacket(uint8_t addr, uint8_t *data, uint16_t size)
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{
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uint32_t res;
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__disable_irq();
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if((USBH->FRAMERM < 10000) && (USBH->FRAMERM > 2000))
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{
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USBH->TXTRSZ = size;
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for(uint32_t i = 0; i < size; i++)
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{
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((uint8_t *)USBH->TXBUF)[i] = data[i];
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}
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USBH->TOKEN = (addr << USBH_TOKEN_ADDR_Pos) |
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(0 << USBH_TOKEN_EPNR_Pos) |
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(13 << USBH_TOKEN_TYPE_Pos) |
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(0 << USBH_TOKEN_DATAX_Pos) |
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(Speed << USBH_TOKEN_SPEED_Pos) |
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(size << USBH_TOKEN_TRSZ_Pos);
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res = 1;
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}
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else
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{
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res = 0;
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}
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__enable_irq();
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return res;
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}
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/******************************************************************************************************************************************
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* 函数名称: USBH_SendOutPacket()
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* 功能说明: 发送 Out 包
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* 输 入: 无
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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uint32_t USBH_SendOutPacket(uint8_t addr, uint8_t endp, uint8_t DATAx, uint8_t *data, uint16_t size)
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{
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uint32_t res;
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__disable_irq();
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if((USBH->FRAMERM < 10000) && (USBH->FRAMERM > 2000))
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{
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USBH->TXTRSZ = size;
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for(uint32_t i = 0; i < size; i++)
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{
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((uint8_t *)USBH->TXBUF)[i] = data[i];
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}
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USBH->TOKEN = (addr << USBH_TOKEN_ADDR_Pos) |
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(endp << USBH_TOKEN_EPNR_Pos) |
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(1 << USBH_TOKEN_TYPE_Pos) |
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(DATAx << USBH_TOKEN_DATAX_Pos) |
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(Speed << USBH_TOKEN_SPEED_Pos) |
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(size << USBH_TOKEN_TRSZ_Pos);
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res = 1;
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}
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else
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{
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res = 0;
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}
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__enable_irq();
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return res;
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}
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/******************************************************************************************************************************************
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* 函数名称: USBH_SendInPacket()
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* 功能说明: 发送 In 包
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* 输 入: 无
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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uint32_t USBH_SendInPacket(uint8_t addr, uint8_t endp, uint8_t DATAx, uint16_t size)
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{
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uint32_t res;
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__disable_irq();
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if((USBH->FRAMERM < 10000) && (USBH->FRAMERM > 2000))
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{
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endp &= 0x0F;
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USBH->TOKEN = (addr << USBH_TOKEN_ADDR_Pos) |
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(endp << USBH_TOKEN_EPNR_Pos) |
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(9 << USBH_TOKEN_TYPE_Pos) |
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(DATAx << USBH_TOKEN_DATAX_Pos) |
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(Speed << USBH_TOKEN_SPEED_Pos) |
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(size << USBH_TOKEN_TRSZ_Pos);
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res = 1;
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}
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else
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{
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res = 0;
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}
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__enable_irq();
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return res;
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}
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/******************************************************************************************************************************************
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* 函数名称: USBH_ReadRxBuffer()
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* 功能说明: 读取接收到的数据
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* 输 入: 无
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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uint32_t USBH_ReadRxBuffer(uint8_t *buff, uint32_t size)
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{
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uint32_t real_size = (USBH->SR & USBH_SR_TRSZ_Msk) >> USBH_SR_TRSZ_Pos;
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if(size > real_size)
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size = real_size;
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memcpy(buff, (uint8_t *)USBH->RXBUF, size);
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return size;
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}
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