usb.h

   1 #ifndef USB_H
   2 #define  USB_H 1
   3
   4 #include <stdint.h>
   5 #include <avr/io.h>
   6
   7
   8 void usb_init(void);                    // initialize everything
   9 uint8_t usb_configured(void);           // is the USB port configured
  10
  11
  12
  13
  14 #define EP_TYPE_CONTROL                 0x00
  15 #define EP_TYPE_BULK_IN                 0x81
  16 #define EP_TYPE_BULK_OUT                0x80
  17 #define EP_TYPE_INTERRUPT_IN            0xC1
  18 #define EP_TYPE_INTERRUPT_OUT           0xC0
  19 #define EP_TYPE_ISOCHRONOUS_IN          0x41
  20 #define EP_TYPE_ISOCHRONOUS_OUT         0x40
  21
  22 #define EP_SINGLE_BUFFER                0x02
  23 #define EP_DOUBLE_BUFFER                0x06
  24
  25 #define EP_SIZE(s)      ((s) == 64 ? 0x30 :     \
  26                         ((s) == 32 ? 0x20 :     \
  27                         ((s) == 16 ? 0x10 :     \
  28                                      0x00)))
  29
  30 #define MAX_ENDPOINT            4
  31
  32 #define LSB(n) (n & 255)
  33 #define MSB(n) ((n >> 8) & 255)
  34
  35 #if defined(__AVR_AT90USB162__)
  36 #define HW_CONFIG()
  37 #define PLL_CONFIG() (PLLCSR = ((1<<PLLE)|(1<<PLLP0)))
  38 #define USB_CONFIG() (USBCON = (1<<USBE))
  39 #define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
  40 #elif defined(__AVR_ATmega32U4__)
  41 #define HW_CONFIG() (UHWCON = 0x01)
  42 #define PLL_CONFIG() (PLLCSR = 0x12)
  43 #define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
  44 #define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
  45 #elif defined(__AVR_AT90USB646__)
  46 #define HW_CONFIG() (UHWCON = 0x81)
  47 #define PLL_CONFIG() (PLLCSR = 0x1A)
  48 #define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
  49 #define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
  50 #elif defined(__AVR_AT90USB1286__)
  51 #define HW_CONFIG() (UHWCON = 0x81)
  52 #define PLL_CONFIG() (PLLCSR = 0x16)
  53 #define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
  54 #define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
  55 #endif
  56
  57 // standard control endpoint request types
  58 #define GET_STATUS                      0
  59 #define CLEAR_FEATURE                   1
  60 #define SET_FEATURE                     3
  61 #define SET_ADDRESS                     5
  62 #define GET_DESCRIPTOR                  6
  63 #define GET_CONFIGURATION               8
  64 #define SET_CONFIGURATION               9
  65 #define GET_INTERFACE                   10
  66 #define SET_INTERFACE                   11
  67 // HID (human interface device)
  68 #define HID_GET_REPORT                  1
  69 #define HID_GET_IDLE                    2
  70 #define HID_GET_PROTOCOL                3
  71 #define HID_SET_REPORT                  9
  72 #define HID_SET_IDLE                    10
  73 #define HID_SET_PROTOCOL                11
  74 // CDC (communication class device)
  75 #define CDC_SET_LINE_CODING             0x20
  76 #define CDC_GET_LINE_CODING             0x21
  77 #define CDC_SET_CONTROL_LINE_STATE      0x22
  78
  79 #endif