diff options
Diffstat (limited to 'src/generic/usbstd.h')
| -rw-r--r-- | src/generic/usbstd.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/generic/usbstd.h b/src/generic/usbstd.h new file mode 100644 index 00000000..86199992 --- /dev/null +++ b/src/generic/usbstd.h @@ -0,0 +1,121 @@ +// Standard definitions for USB commands and data structures +#ifndef __GENERIC_USBSTD_H +#define __GENERIC_USBSTD_H + +#include <stdint.h> // uint8_t +#include "compiler.h" // PACKED + +#define USB_DIR_OUT 0 /* to device */ +#define USB_DIR_IN 0x80 /* to host */ + +#define USB_REQ_GET_STATUS 0x00 +#define USB_REQ_CLEAR_FEATURE 0x01 +#define USB_REQ_SET_FEATURE 0x03 +#define USB_REQ_SET_ADDRESS 0x05 +#define USB_REQ_GET_DESCRIPTOR 0x06 +#define USB_REQ_SET_DESCRIPTOR 0x07 +#define USB_REQ_GET_CONFIGURATION 0x08 +#define USB_REQ_SET_CONFIGURATION 0x09 +#define USB_REQ_GET_INTERFACE 0x0A +#define USB_REQ_SET_INTERFACE 0x0B +#define USB_REQ_SYNCH_FRAME 0x0C + +struct usb_ctrlrequest { + uint8_t bRequestType; + uint8_t bRequest; + uint16_t wValue; + uint16_t wIndex; + uint16_t wLength; +} PACKED; + +#define USB_DT_DEVICE 0x01 +#define USB_DT_CONFIG 0x02 +#define USB_DT_STRING 0x03 +#define USB_DT_INTERFACE 0x04 +#define USB_DT_ENDPOINT 0x05 +#define USB_DT_DEVICE_QUALIFIER 0x06 +#define USB_DT_OTHER_SPEED_CONFIG 0x07 +#define USB_DT_ENDPOINT_COMPANION 0x30 + +struct usb_device_descriptor { + uint8_t bLength; + uint8_t bDescriptorType; + + uint16_t bcdUSB; + uint8_t bDeviceClass; + uint8_t bDeviceSubClass; + uint8_t bDeviceProtocol; + uint8_t bMaxPacketSize0; + uint16_t idVendor; + uint16_t idProduct; + uint16_t bcdDevice; + uint8_t iManufacturer; + uint8_t iProduct; + uint8_t iSerialNumber; + uint8_t bNumConfigurations; +} PACKED; + +#define USB_CLASS_PER_INTERFACE 0 /* for DeviceClass */ +#define USB_CLASS_AUDIO 1 +#define USB_CLASS_COMM 2 +#define USB_CLASS_HID 3 +#define USB_CLASS_PHYSICAL 5 +#define USB_CLASS_STILL_IMAGE 6 +#define USB_CLASS_PRINTER 7 +#define USB_CLASS_MASS_STORAGE 8 +#define USB_CLASS_HUB 9 + +struct usb_config_descriptor { + uint8_t bLength; + uint8_t bDescriptorType; + + uint16_t wTotalLength; + uint8_t bNumInterfaces; + uint8_t bConfigurationValue; + uint8_t iConfiguration; + uint8_t bmAttributes; + uint8_t bMaxPower; +} PACKED; + +struct usb_interface_descriptor { + uint8_t bLength; + uint8_t bDescriptorType; + + uint8_t bInterfaceNumber; + uint8_t bAlternateSetting; + uint8_t bNumEndpoints; + uint8_t bInterfaceClass; + uint8_t bInterfaceSubClass; + uint8_t bInterfaceProtocol; + uint8_t iInterface; +} PACKED; + +struct usb_endpoint_descriptor { + uint8_t bLength; + uint8_t bDescriptorType; + + uint8_t bEndpointAddress; + uint8_t bmAttributes; + uint16_t wMaxPacketSize; + uint8_t bInterval; +} PACKED; + +#define USB_ENDPOINT_NUMBER_MASK 0x0f /* in bEndpointAddress */ +#define USB_ENDPOINT_DIR_MASK 0x80 + +#define USB_ENDPOINT_XFERTYPE_MASK 0x03 /* in bmAttributes */ +#define USB_ENDPOINT_XFER_CONTROL 0 +#define USB_ENDPOINT_XFER_ISOC 1 +#define USB_ENDPOINT_XFER_BULK 2 +#define USB_ENDPOINT_XFER_INT 3 +#define USB_ENDPOINT_MAX_ADJUSTABLE 0x80 + +struct usb_string_descriptor { + uint8_t bLength; + uint8_t bDescriptorType; + uint16_t data[]; +} PACKED; + +#define USB_LANGID_ENGLISH_US 0x0409 + +#endif // usbstd.h |