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lpc176x: Initial support for serial over usb

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2018-04-27 14:54:50 -04:00
parent c812a40a37
commit c381d03aad
8 changed files with 961 additions and 1 deletions
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49
src/generic/usbstd_cdc.h Normal file
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@@ -0,0 +1,49 @@
// Standard definitions for USB CDC devices
#ifndef __GENERIC_USBSTD_CDC_H
#define __GENERIC_USBSTD_CDC_H
#define USB_CDC_SUBCLASS_ACM 0x02
#define USB_CDC_ACM_PROTO_AT_V25TER 1
struct usb_cdc_header_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint16_t bcdCDC;
} PACKED;
#define USB_CDC_HEADER_TYPE 0x00
#define USB_CDC_ACM_TYPE 0x02
#define USB_CDC_UNION_TYPE 0x06
#define USB_CDC_CS_INTERFACE 0x24
#define USB_CDC_CS_ENDPOINT 0x25
struct usb_cdc_acm_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bmCapabilities;
} PACKED;
struct usb_cdc_union_descriptor {
uint8_t bLength;
uint8_t bDescriptorType;
uint8_t bDescriptorSubType;
uint8_t bMasterInterface0;
uint8_t bSlaveInterface0;
} PACKED;
#define USB_CDC_REQ_SET_LINE_CODING 0x20
#define USB_CDC_REQ_GET_LINE_CODING 0x21
#define USB_CDC_REQ_SET_CONTROL_LINE_STATE 0x22
struct usb_cdc_line_coding {
uint32_t dwDTERate;
uint8_t bCharFormat;
uint8_t bParityType;
uint8_t bDataBits;
} PACKED;
#endif // usbstd_cdc.h