Added USB (specifically CDC-ACM) support
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18 changed files with 2079 additions and 4 deletions
185
cpu/at91sam7s/usb/usb.h
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185
cpu/at91sam7s/usb/usb.h
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#ifndef __USB_H__6PFTDPIMZM__
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#define __USB_H__6PFTDPIMZM__
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#include <stdint.h>
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/* Adapted from usb_kbd_enum.h in c5131-usb-kbd-light-1_0_2 package from
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Atmel */
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/* These definitions assume a little endian architecture */
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#ifdef __GNUC__
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#define BYTE_ALIGNED __attribute__ ((__packed__))
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#else
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#define BYTE_ALIGNED
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#endif
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#define LOW_BYTE(x) ((unsigned char)x)
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#define HIGH_BYTE(x) ((unsigned char)(x>>8))
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typedef uint8_t Uchar;
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typedef uint16_t Uint16;
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typedef uint32_t Uint32;
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/*_____ S T A N D A R D R E Q U E S T S __________________________________*/
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#define GET_STATUS 0x00
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#define GET_DEVICE 0x01
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#define CLEAR_FEATURE 0x01 /* see FEATURES below */
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#define GET_STRING 0x03
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#define SET_FEATURE 0x03 /* see FEATURES below */
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#define SET_ADDRESS 0x05
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#define GET_DESCRIPTOR 0x06
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#define SET_DESCRIPTOR 0x07
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#define GET_CONFIGURATION 0x08
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#define SET_CONFIGURATION 0x09
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#define GET_INTERFACE 0x0A
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#define SET_INTERFACE 0x0B
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#define SYNCH_FRAME 0x0C
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#define GET_DEVICE_DESCRIPTOR 1
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#define GET_CONFIGURATION_DESCRIPTOR 4
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#define REQUEST_DEVICE_STATUS 0x80
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#define REQUEST_INTERFACE_STATUS 0x81
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#define REQUEST_ENDPOINT_STATUS 0x82
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#define ZERO_TYPE 0x00
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#define INTERFACE_TYPE 0x01
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#define ENDPOINT_TYPE 0x02
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/*_____ D E S C R I P T O R T Y P E S ____________________________________*/
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#define DEVICE 0x01
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#define CONFIGURATION 0x02
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#define STRING 0x03
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#define INTERFACE 0x04
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#define ENDPOINT 0x05
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/* HID specific */
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#define HID 0x21
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#define REPORT 0x22
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/* *** */
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/*_____ S T A N D A R D F E A T U R E S __________________________________*/
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#define DEVICE_REMOTE_WAKEUP_FEATURE 0x01
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#define ENDPOINT_HALT_FEATURE 0x00
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/*_____ D E V I C E S T A T U S ___________________________________________*/
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#define SELF_POWERED 1
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/*_____ D E V I C E S T A T E _____________________________________________*/
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#define ATTACHED 0
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#define POWERED 1
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#define DEFAULT 2
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#define ADDRESSED 3
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#define CONFIGURED 4
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#define SUSPENDED 5
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#define USB_CONFIG_BUSPOWERED 0x80
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#define USB_CONFIG_SELFPOWERED 0x40
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#define USB_CONFIG_REMOTEWAKEUP 0x20
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/* Class specific */
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#define CS_INTERFACE 0x24
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#define CS_ENDPOINT 0x25
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/*_________________________________________________________ S T R U C T _____*/
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/*_____ U S B D E V I C E R E Q U E S T _________________________________*/
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struct USB_request_st
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{
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Uchar bmRequestType; /* Characteristics of the request */
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Uchar bRequest; /* Specific request */
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Uint16 wValue;
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Uint16 wIndex; /* field that varies according to request */
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Uint16 wLength; /* Number of bytes to transfer if Data */
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};
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/*_____ U S B D E V I C E D E S C R I P T O R ___________________________*/
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struct usb_st_device_descriptor
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{
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Uchar bLength; /* Size of this descriptor in bytes */
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Uchar bDescriptorType; /* DEVICE descriptor type */
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Uint16 bscUSB; /* Binay Coded Decimal Spec. release */
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Uchar bDeviceClass; /* Class code assigned by the USB */
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Uchar bDeviceSubClass; /* Sub-class code assigned by the USB */
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Uchar bDeviceProtocol; /* Protocol code assigned by the USB */
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Uchar bMaxPacketSize0; /* Max packet size for EP0 */
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Uint16 idVendor; /* Vendor ID. ATMEL = 0x03EB */
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Uint16 idProduct; /* Product ID assigned by the manufacturer */
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Uint16 bcdDevice; /* Device release number */
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Uchar iManufacturer; /* Index of manu. string descriptor */
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Uchar iProduct; /* Index of prod. string descriptor */
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Uchar iSerialNumber; /* Index of S.N. string descriptor */
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Uchar bNumConfigurations; /* Number of possible configurations */
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} BYTE_ALIGNED;
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/*_____ U S B C O N F I G U R A T I O N D E S C R I P T O R _____________*/
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struct usb_st_configuration_descriptor
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{
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Uchar bLength; /* size of this descriptor in bytes */
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Uchar bDescriptorType; /* CONFIGURATION descriptor type */
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Uint16 wTotalLength; /* total length of data returned */
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Uchar bNumInterfaces; /* number of interfaces for this conf. */
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Uchar bConfigurationValue; /* value for SetConfiguration resquest */
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Uchar iConfiguration; /* index of string descriptor */
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Uchar bmAttibutes; /* Configuration characteristics */
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Uchar MaxPower; /* maximum power consumption */
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} BYTE_ALIGNED;
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/*_____ U S B I N T E R F A C E D E S C R I P T O R _____________________*/
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struct usb_st_interface_descriptor
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{
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Uchar bLength; /* size of this descriptor in bytes */
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Uchar bDescriptorType; /* INTERFACE descriptor type */
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Uchar bInterfaceNumber; /* Number of interface */
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Uchar bAlternateSetting; /* value to select alternate setting */
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Uchar bNumEndpoints; /* Number of EP except EP 0 */
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Uchar bInterfaceClass; /* Class code assigned by the USB */
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Uchar bInterfaceSubClass; /* Sub-class code assigned by the USB */
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Uchar bInterfaceProtocol; /* Protocol code assigned by the USB */
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Uchar iInterface; /* Index of string descriptor */
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} BYTE_ALIGNED;
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/*_____ U S B E N D P O I N T D E S C R I P T O R _______________________*/
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struct usb_st_endpoint_descriptor
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{
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Uchar bLength; /* Size of this descriptor in bytes */
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Uchar bDescriptorType; /* ENDPOINT descriptor type */
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Uchar bEndpointAddress; /* Address of the endpoint */
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Uchar bmAttributes; /* Endpoint's attributes */
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Uint16 wMaxPacketSize; /* Maximum packet size for this EP */
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Uchar bInterval; /* Interval for polling EP in ms */
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/* Uchar bRefresh; */
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/* Uchar bSynchAddress; */
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} BYTE_ALIGNED;
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/*_____ U S B S T R I N G D E S C R I P T O R _______________*/
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struct usb_st_string_descriptor
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{
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Uchar bLength; /* size of this descriptor in bytes */
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Uchar bDescriptorType; /* STRING descriptor type */
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Uint16 wstring[1];/* unicode characters */
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} BYTE_ALIGNED;
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struct usb_st_language_descriptor
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{
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Uchar bLength; /* size of this descriptor in bytes */
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Uchar bDescriptorType; /* STRING descriptor type */
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Uint16 wlangid[1]; /* language id */
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} BYTE_ALIGNED;
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#endif /* __USB_H__6PFTDPIMZM__ */
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