90 lines
3.2 KiB
C
90 lines
3.2 KiB
C
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#ifndef CDC_CLASS_H
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#define CDC_CLASS_H
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#include "baselayer.h"
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#include "gpio.h"
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#include "system.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <string.h>
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#include "usb_desc.h"
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#include "ch32v20x_usb.h"
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/******************************************************************************/
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/* Global Define */
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#ifndef __PACKED
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#define __PACKED __attribute__((packed))
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#endif
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/* end-point number */
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#define DEF_UEP_IN 0x80
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#define DEF_UEP_OUT 0x00
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#define DEF_UEP0 0x00
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#define DEF_UEP1 0x01
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#define DEF_UEP2 0x02
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#define DEF_UEP3 0x03
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#define DEF_UEP4 0x04
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#define DEF_UEP5 0x05
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#define DEF_UEP6 0x06
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#define DEF_UEP7 0x07
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#define DEF_UEP_NUM 8
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#define USBFSD_UEP_MOD_BASE 0x5000000C
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#define USBFSD_UEP_DMA_BASE 0x50000010
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#define USBFSD_UEP_LEN_BASE 0x50000030
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#define USBFSD_UEP_CTL_BASE 0x50000032
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#define USBFSD_UEP_RX_EN 0x08
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#define USBFSD_UEP_TX_EN 0x04
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#define USBFSD_UEP_BUF_MOD 0x01
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#define DEF_UEP_DMA_LOAD 0 /* Direct the DMA address to the data to be processed */
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#define DEF_UEP_CPY_LOAD 1 /* Use memcpy to move data to a buffer */
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#define USBFSD_UEP_MOD(n) (*((volatile uint8_t *)(USBFSD_UEP_MOD_BASE+n)))
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#define USBFSD_UEP_CTRL(n) (*((volatile uint8_t *)(USBFSD_UEP_CTL_BASE+n*0x04)))
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#define USBFSD_UEP_DMA(n) (*((volatile uint32_t *)(USBFSD_UEP_DMA_BASE+n*0x04)))
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#define USBFSD_UEP_BUF(n) ((uint8_t *)(*((volatile uint32_t *)(USBFSD_UEP_DMA_BASE+n*0x04)))+0x20000000)
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#define USBFSD_UEP_TLEN(n) (*((volatile uint16_t *)(USBFSD_UEP_LEN_BASE+n*0x04)))
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/* Setup Request Packets */
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#define pUSBFS_SetupReqPak ((PUSB_SETUP_REQ)USBFS_EP0_Buf)
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#ifdef __cplusplus
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};
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#endif
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/**
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*/
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class cdc_class : public BaseLayer {
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GpioClass dtr;
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bool Ready;
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const uint8_t * pUSBFS_Descr;
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/* Setup Request */
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volatile uint8_t USBFS_SetupReqCode;
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volatile uint8_t USBFS_SetupReqType;
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volatile uint16_t USBFS_SetupReqValue;
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volatile uint16_t USBFS_SetupReqIndex;
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volatile uint16_t USBFS_SetupReqLen;
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/* USB Device Status */
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volatile uint8_t USBFS_DevConfig;
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volatile uint8_t USBFS_DevAddr;
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volatile uint8_t USBFS_DevSleepStatus;
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volatile uint8_t USBFS_DevEnumStatus;
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/* Endpoint Buffer */
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__attribute__ ((aligned(4))) uint8_t USBFS_EP0_Buf[ DEF_USBD_UEP0_SIZE ];
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__attribute__ ((aligned(4))) uint8_t USBFS_EP1_Buf[ DEF_USBD_ENDP1_SIZE ];
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__attribute__ ((aligned(4))) uint8_t USBFS_EP2_Buf[ DEF_USBD_ENDP2_SIZE ];
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__attribute__ ((aligned(4))) uint8_t USBFS_EP3_Buf[ DEF_USBD_ENDP3_SIZE ];
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/* USB IN Endpoint Busy Flag */
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volatile uint8_t USBFS_Endp_Busy[ DEF_UEP_NUM ];
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public:
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explicit cdc_class () noexcept;
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void init ();
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void cdc_irq ();
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uint32_t Down(const char * data, const uint32_t len) override;
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protected:
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void USBFS_Device_Init( bool sta );
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void USBFS_Device_Endp_Init ();
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uint8_t USBFS_Endp_DataUp(uint8_t endp, const uint8_t *pbuf, uint16_t len, uint8_t mod);
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void TxDataDeal ();
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};
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#endif // CDC_CLASS_H
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