148 lines
7.6 KiB
C
148 lines
7.6 KiB
C
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/**
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****************************************************************************************
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*
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* @file usbd_cdc.h
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*
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* @brief Header file of USB CDC function
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*
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****************************************************************************************
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*/
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#ifndef _USBD_CDC_H_
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#define _USBD_CDC_H_
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#include <stdint.h>
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#include "usb_cdc.h"
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#if !defined(CDC_INST_CNT)
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// MAX Count of CDC Instances
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#define CDC_INST_CNT (3)
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#endif
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/* Max packet size */
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#define CDC_INT_EP_MPS (0x0040)
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#define CDC_BULK_EP_MPS (0x0040)
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/* Length of CDC descriptor: 66 bytes */
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#define CDC_ACM_DESCRIPTOR_LEN (8 + 9 + 5 + 5 + 4 + 5 + 7 + 9 + 7 + 7)
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/* Macro for template descriptor */
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#define CDC_ACM_DESCRIPTOR_INIT(bFirstInterface, int_ep, out_ep, in_ep, str_idx) \
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/* Interface Associate */ \
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0x08, /* bLength */ \
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USB_DESC_TYPE_INTERFACE_ASSOCIATION, /* bDescriptorType */ \
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bFirstInterface, /* bFirstInterface */ \
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0x02, /* bInterfaceCount */ \
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USB_DEVICE_CLASS_CDC, /* bFunctionClass */ \
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CDC_ABSTRACT_CONTROL_MODEL, /* bFunctionSubClass */ \
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CDC_COMMON_PROTOCOL_ATCMD, /* bFunctionProtocol */ \
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0x00, /* iFunction */ \
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/* Interface CDC_CMD */ \
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0x09, /* bLength */ \
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USB_DESC_TYPE_INTERFACE, /* bDescriptorType */ \
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bFirstInterface, /* bInterfaceNumber */ \
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0x00, /* bAlternateSetting */ \
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0x01, /* bNumEndpoints */ \
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USB_DEVICE_CLASS_CDC, /* bInterfaceClass */ \
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CDC_ABSTRACT_CONTROL_MODEL, /* bInterfaceSubClass */ \
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CDC_COMMON_PROTOCOL_ATCMD, /* bInterfaceProtocol */ \
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str_idx, /* iInterface */ \
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/* Header Functional Descriptor */ \
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0x05, /* bLength */ \
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CDC_CS_INTERFACE, /* bDescriptorType */ \
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CDC_FUNC_DESC_HEADER, /* bDescriptorSubtype */ \
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WBVAL(CDC_V1_10), /* bcdCDC */ \
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/* Call Management Functional */ \
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0x05, /* bLength */ \
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CDC_CS_INTERFACE, /* bDescriptorType */ \
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CDC_FUNC_DESC_CALL_MANAGEMENT, /* bDescriptorSubtype */ \
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0x00, /* bmCapabilities */ \
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(uint8_t)(bFirstInterface + 1), /* bDataInterface */ \
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/* ACM Functional Descriptor */ \
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0x04, /* bLength */ \
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CDC_CS_INTERFACE, /* bDescriptorType */ \
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CDC_FUNC_DESC_ABSTRACT_CONTROL_MANAGEMENT, /* bDescriptorSubtype */ \
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0x02, /* bmCapabilities */ \
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/* Union Functional Descriptor */ \
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0x05, /* bLength */ \
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CDC_CS_INTERFACE, /* bDescriptorType */ \
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CDC_FUNC_DESC_UNION, /* bDescriptorSubtype */ \
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bFirstInterface, /* bMasterInterface */ \
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(uint8_t)(bFirstInterface + 1), /* bSlaveInterface0 */ \
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0x07, /* bLength */ \
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USB_DESC_TYPE_ENDPOINT, /* bDescriptorType */ \
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int_ep, /* bEndpointAddress */ \
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0x03, /* bmAttributes */ \
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WBVAL(CDC_INT_EP_MPS), /* wMaxPacketSize */ \
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0x00, /* bInterval */ \
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/* Interface CDC_DATA */ \
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0x09, /* bLength */ \
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USB_DESC_TYPE_INTERFACE, /* bDescriptorType */ \
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(uint8_t)(bFirstInterface + 1), /* bInterfaceNumber */ \
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0x00, /* bAlternateSetting */ \
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0x02, /* bNumEndpoints */ \
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CDC_DATA_INTERFACE_CLASS, /* bInterfaceClass */ \
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0x00, /* bInterfaceSubClass */ \
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0x00, /* bInterfaceProtocol */ \
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0x00, /* iInterface */ \
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0x07, /* bLength */ \
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USB_DESC_TYPE_ENDPOINT, /* bDescriptorType */ \
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out_ep, /* bEndpointAddress */ \
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0x02, /* bmAttributes */ \
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WBVAL(CDC_BULK_EP_MPS), /* wMaxPacketSize */ \
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0x00, /* bInterval */ \
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0x07, /* bLength */ \
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USB_DESC_TYPE_ENDPOINT, /* bDescriptorType */ \
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in_ep, /* bEndpointAddress */ \
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0x02, /* bmAttributes */ \
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WBVAL(CDC_BULK_EP_MPS), /* wMaxPacketSize */ \
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0x00 /* bInterval */
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enum cdc_param_type {
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CDC_LINE_CODING,
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CDC_LINE_STATE,
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};
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enum cdc_state_type {
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CDC_STATE_IDLE,
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CDC_STATE_BUSY,
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};
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typedef struct usbd_cdc_tag {
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/* CDC ACM interface */
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uint8_t intf_num;
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uint8_t ep_in;
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/* CDC ACM state */
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uint8_t cdc_state;
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/* CDC ACM line state bitmap, DTE side */
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uint8_t line_state;
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/* CDC ACM line coding properties */
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struct cdc_line_coding line_coding;
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/* CDC ACM tx data */
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const uint8_t *txdata_ptr;
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uint16_t txdata_len;
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uint16_t txdata_res;
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} usbd_cdc_t;
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void usbd_cdc_init(uint8_t idx, uint8_t intf_num, uint8_t ep_in);
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void usbd_cdc_reset(void);
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void usbd_cdc_updated(usbd_cdc_t *cdc, uint8_t type);
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uint8_t usbd_cdc_ep_send(uint8_t ep, uint16_t len, const uint8_t *data);
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uint8_t usbd_cdc_id_send(uint8_t id, uint16_t len, const uint8_t *data);
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void usbd_cdc_bulk_in_handler(uint8_t ep);
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void usbd_cdc_bulk_out_handler(uint8_t ep);
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uint8_t usbd_cdc_class_handler(struct usb_setup_packet *setup, uint8_t **data, uint16_t *len);
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#endif // _USBD_CDC_H_
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