373 lines
9.2 KiB
C
373 lines
9.2 KiB
C
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/***********************************************************************
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* Filename : hal_lpuart.c
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* Description : lpuart driver source file
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* Author(s) : xwl
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* version : V1.0
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* Modify date : 2019-11-19
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***********************************************************************/
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#include "ACM32Fxx_HAL.h"
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static uint16_t ep1_stall[2]= {0}; // EP1 stall״̬
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static uint16_t ep2_stall[2]= {0}; // EP2 stall״̬
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static uint16_t ep3_stall[2]= {0}; // EP3 stall״̬
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static uint16_t ep4_stall[2]= {0}; // EP3 stall״̬
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uint32_t HAL_FSUSB_MSP_Init(void)
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{
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GPIO_InitTypeDef GPIO_init_para;
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System_Module_Reset(RST_USB);
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System_Module_Enable(EN_USB);
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if( HAL_OK != System_USB_PHY_Config())
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{
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return HAL_ERROR;
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}
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SCU->PABADS = (SCU->PABADS | ( (0x3 << 11)) );
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// GPIO_init_para.Pin = GPIO_PIN_11 | GPIO_PIN_12;
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// GPIO_init_para.Mode = GPIO_MODE_ANALOG;
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// GPIO_init_para.Pull = GPIO_NOPULL;
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// GPIO_init_para.Alternate = GPIO_FUNCTION_0;
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// HAL_GPIO_Init(GPIOA, &GPIO_init_para);
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NVIC_ClearPendingIRQ(USB_IRQn);
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NVIC_EnableIRQ(USB_IRQn);
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return HAL_OK;
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}
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uint32_t HAL_FSUSB_Init(void)
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{
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if (HAL_OK != HAL_FSUSB_MSP_Init())
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{
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return HAL_ERROR;
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}
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System_Delay(10);
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USBCTRL->WORKING_MODE = 0x04; //disconnect usb/ reset USBC
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System_Delay(3000);
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USBCTRL->WORKING_MODE = 0x09 ; //auto reset, fullspeed
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USBCTRL->EPxCSR[0] |= 1<<8; //enable EP0
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USBCTRL->EPxCSR[1] |= 1<<8; //enable EP1
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USBCTRL->EPxCSR[2] |= 1<<8; //enable EP2
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USBCTRL->EPxCSR[3] |= 1<<8; //enable EP3
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USBCTRL->EPxCSR[4] |= 1<<8; //enable EP4
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USBCTRL->EPADDR_CFG = 0x4321;
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USBINT->INT_EN = 0x92427; // enable Reset,Resume,Suspend,setup, EP1/2/3/4 OUT interrupt
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USBCTRL->WORKING_MODE |= (1<<6)|(1<<4); //connect
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return HAL_OK;
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}
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uint16_t HAL_FSUSB_Get_FIFO_Length(uint8_t ep_index)
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{
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return USBCTRL->EPxCSR[ep_index]&0xff;
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}
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void HAL_USB_Clear_FIFO(uint8_t ep_index, uint8_t ep_dir)
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{
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USBCTRL->EPxCSR[ep_index] |= 1<<9;
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}
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uint16_t HAL_USB_Get_Stall_Status(uint8_t ep_index, uint8_t ep_dir)
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{
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switch(ep_index)
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{
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case USB_EP1:
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{
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if(ep_dir == EP_DIR_IN) return ep1_stall[0]; //in
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else return ep1_stall[1]; //out
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}
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case USB_EP2:
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{
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if(ep_dir == EP_DIR_IN) return ep2_stall[0]; //in
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else return ep2_stall[1]; //out
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}
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case USB_EP3:
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{
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if(ep_dir == EP_DIR_IN) return ep3_stall[0]; //in
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else return ep3_stall[1]; //out
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}
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case USB_EP4:
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{
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if(ep_dir == EP_DIR_IN) return ep4_stall[0]; //in
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else return ep4_stall[1]; //out
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}
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default: return 0xff;
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}
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}
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void usb_clear_stall(uint8_t ep_index, uint8_t ep_dir)
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{
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switch(ep_index)
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{
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case USB_EP1:
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{
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if(ep_dir == EP_DIR_IN) ep1_stall[0]=0x0000; //in
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else ep1_stall[1]=0x0000; //out
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break;
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}
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case USB_EP2:
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{
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if(ep_dir == EP_DIR_IN) ep2_stall[0]=0x0000; //in
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else ep2_stall[1]=0x0000; //out
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break;
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}
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case USB_EP3:
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{
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if(ep_dir == EP_DIR_IN) ep3_stall[0]=0x0000; //in
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else ep3_stall[1]=0x0000; //out
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break;
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}
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case USB_EP4:
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{
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if(ep_dir == EP_DIR_IN) ep4_stall[0]=0x0000; //in
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else ep4_stall[1]=0x0000; //out
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break;
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}
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default: return;
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}
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USBCTRL->EPxCSR[ep_index] = 0x02100; //clear in/out toggle,stall,stall status
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USBCTRL->EPxCSR[ep_index] |= (1<<18)|(1<<15); //enable change
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// flag_clear_stall=0;
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}
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void usb_send_stall(uint8_t ep_index, uint8_t ep_dir)
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{
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switch(ep_index)
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{
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case USB_EP1:
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{
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if(ep_dir == EP_DIR_IN) ep1_stall[0]=0x0001; //in
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else ep1_stall[1]=0x0001; //out
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break;
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}
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case USB_EP2:
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{
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if(ep_dir == EP_DIR_IN) ep2_stall[0]=0x0001; //in
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else ep2_stall[1]=0x0001; //out
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break;
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}
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case USB_EP3:
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{
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if(ep_dir == EP_DIR_IN) ep3_stall[0]=0x0001; //in
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else ep3_stall[1]=0x0001; //out
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break;
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}
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case USB_EP4:
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{
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if(ep_dir == EP_DIR_IN) ep4_stall[0]=0x0001; //in
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else ep4_stall[1]=0x0001; //out
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break;
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}
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default: return;
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}
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USBCTRL->EPxCSR[ep_index] |= (1<<12);
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}
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void HAL_FSUSB_Read_EP_MEM8(uint8_t *dst, uint32_t length, uint32_t fifo_offset, uint8_t ep_index)
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{
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uint8_t *src;
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src = (uint8_t *)(USB_BASE+0x200+(ep_index<<6)+fifo_offset);
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while(length--)
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{
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*dst++ = *src++;
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}
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}
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void HAL_FSUSB_Write_EP_MEM8(uint8_t *src, uint32_t length, uint32_t fifo_offset, uint8_t ep_index)
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{
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uint8_t *dst;
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dst = (uint8_t *)(USB_BASE+0x200+(ep_index<<6)+fifo_offset);
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while(length--)
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{
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*dst++ = *src++;
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}
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}
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uint8_t HAL_FSUSB_Start_EP_Transfer(uint32_t length,uint8_t ep_index)
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{
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uint8_t intoken_cnt;
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USBCTRL->EPxSENDBN[ep_index]= length;
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while(1)
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{
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// if a new out data packet received, return error to caller
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if( (USBINT->INT_STAT_RAW & MASK_EPX_OUT(ep_index)) && (USBINT->INT_STAT_RAW & MASK_EPX_ACK(ep_index)) )
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{
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USBINT->INT_CLR = MASK_EPX_OUT(ep_index);
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USBINT->INT_CLR = MASK_EPX_ACK(ep_index);
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return ERROR_OUT_OUT;
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}
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// wait for IN token to start transfer
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if(USBINT->INT_STAT_RAW & MASK_EPX_IN(ep_index) )
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{
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USBINT->INT_CLR = MASK_EPX_IN(ep_index);
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USBCTRL->WORKING_MODE |= (1<<11);//return NAK when timeout
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USBCTRL->EPxCSR[ep_index] |= (1<<10);//data is ready for tx
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break;
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}
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}
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while(1)
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{
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if( USBCTRL->EPxCSR[ep_index]&0x1000000 ) //received ACK from host
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{
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USBINT->INT_CLR = MASK_EPX_ACK(ep_index);
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USBINT->INT_CLR = MASK_EPX_IN(ep_index);
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return 0;//pass
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}
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if(USBINT->INT_STAT_RAW & (1<<21) ) // timeout occurs when wait ACK
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{
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USBINT->INT_CLR = (1<<21);
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intoken_cnt = 4;
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while(intoken_cnt) // wait 3 SOF frame for bad signal, during this time, device will send NACK when IN token received
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{
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if(USBINT->INT_STAT_RAW & (1<<3))
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{
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intoken_cnt --;
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USBINT->INT_CLR = (1<<3);
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}
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}
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USBINT->INT_CLR = MASK_EPX_TIMEOUT(ep_index); // device recover to send data packet after IN token received
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}
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if(USBINT->INT_STAT_RAW & MASK_EPX_OUT(ep_index))
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{
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return ERROR_IN_OUT;
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}
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}
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}
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uint8_t HAL_FSUSB_Send_Data(uint8_t *buffer,uint32_t length,uint8_t ep_index)
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{
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uint8_t ret;
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while(length>=EPX_MAX_PACKET_SIZE)
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{
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HAL_FSUSB_Write_EP_MEM8(buffer,EPX_MAX_PACKET_SIZE,0, ep_index);
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ret = HAL_FSUSB_Start_EP_Transfer(EPX_MAX_PACKET_SIZE, ep_index);
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if(ret == ERROR_OUT_OUT)
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{
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if( USBCTRL->EPxCSR[ep_index] & ( 1<< 19) )//Toggle error
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{
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USBCTRL->EPxCSR[ep_index] ^= (1<<17); //out toggle want
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USBCTRL->EPxCSR[ep_index] |= (1<<18); //update want toggle;
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}
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USBCTRL->EPxCSR[ep_index] |= 1<<11; //set rx ready
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continue; // received a same packet, has processed this packet, just fill respoonse to fifo and send it to host
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}
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else if(ret != 0)
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{
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return 1; // send data fail, exit with error code to let caller know
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}
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length -= EPX_MAX_PACKET_SIZE;
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buffer += EPX_MAX_PACKET_SIZE;
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}
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// remaining data, less than EPX_MAX_PACKET_SIZE
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while(length>0)
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{
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HAL_FSUSB_Write_EP_MEM8(buffer,length,0,ep_index);
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ret = HAL_FSUSB_Start_EP_Transfer(length,ep_index);
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if(ret == ERROR_OUT_OUT)
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{
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if( USBCTRL->EPxCSR[ep_index] & ( 1<< 19) )//Toggle error
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{
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USBCTRL->EPxCSR[ep_index] ^= (1<<17); //out toggle want
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USBCTRL->EPxCSR[ep_index] |= (1<<18); //update want toggle;
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}
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USBCTRL->EPxCSR[ep_index] |= 1<<11; //set rx ready
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continue;
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}
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else if(ret != 0)
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{
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return 1; // send data fail, exit with error code to let caller know
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}
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length -= length;
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buffer += length;
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}
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return 0;
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}
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void HAL_FSUSB_Receive_Data(uint8_t *buffer,uint32_t length,uint8_t ep_index)
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{
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uint32_t len;
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while(length>0)
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{
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while(1)
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{
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// wait an out data packet and device has sent an ACK to HOST
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if( (USBINT->INT_STAT_RAW & MASK_EPX_OUT(ep_index)) && (USBINT->INT_STAT_RAW & MASK_EPX_ACK(ep_index)) )
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{
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break;
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}
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}
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USBINT->INT_CLR = MASK_EPX_OUT(ep_index);
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USBINT->INT_CLR = MASK_EPX_ACK(ep_index);
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if( USBCTRL->EPxCSR[ep_index] & ( 1<< 19) )//Toggle error
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{
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USBCTRL->EPxCSR[ep_index] ^= (1<<17); //out toggle want
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USBCTRL->EPxCSR[ep_index] |= (1<<18); //update want toggle;
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USBCTRL->EPxCSR[ep_index] |= 1<<11; //set rx ready, wait for a new packet
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continue; //discard this packet
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}
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len =HAL_FSUSB_Get_FIFO_Length(ep_index);
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HAL_FSUSB_Read_EP_MEM8(buffer,len,0,ep_index);
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USBCTRL->EPxCSR[ep_index] |= 1<<11; //set rx ready to wait next packet
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length -= len;
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buffer += len;
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}
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}
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//ep_index<65><78>ʾ<EFBFBD>˵<EFBFBD><CBB5><EFBFBD><EFBFBD><EFBFBD>
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void HAL_FSUSB_EP0_Send_Empty_Packet(void)
|
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{
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HAL_FSUSB_Start_EP_Transfer(0,USB_EP0);
|
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}
|
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void HAL_FSUSB_EP0_Send_Stall(void)
|
|||
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|
{
|
|||
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|
USBCTRL->EPxCSR[0] |= 1<<12;
|
|||
|
|
while(!(USBCTRL->EPxCSR[0] &0x2000));
|
|||
|
|
USBCTRL->EPxCSR[0] |= 0x2000;
|
|||
|
|
}
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