usb.h

   1 #ifndef USB_H
   2 #define  USB_H 1
   3
   4 #include <stdint.h>
   5 #include <stdbool.h>
   6 #include <avr/io.h>
   7
   8
   9 extern bool remote_wakeup;
  10 extern bool suspend;
  11
  12 void usb_init(void);                    // initialize everything
  13 uint8_t usb_configured(void);           // is the USB port configured
  14 void usb_remote_wakeup(void);
  15
  16
  17
  18
  19 #define EP_TYPE_CONTROL                 0x00
  20 #define EP_TYPE_BULK_IN                 0x81
  21 #define EP_TYPE_BULK_OUT                0x80
  22 #define EP_TYPE_INTERRUPT_IN            0xC1
  23 #define EP_TYPE_INTERRUPT_OUT           0xC0
  24 #define EP_TYPE_ISOCHRONOUS_IN          0x41
  25 #define EP_TYPE_ISOCHRONOUS_OUT         0x40
  26
  27 #define EP_SINGLE_BUFFER                0x02
  28 #define EP_DOUBLE_BUFFER                0x06
  29
  30 #define EP_SIZE(s)      ((s) == 64 ? 0x30 :     \
  31                         ((s) == 32 ? 0x20 :     \
  32                         ((s) == 16 ? 0x10 :     \
  33                                      0x00)))
  34
  35 #define MAX_ENDPOINT            4
  36
  37 #define LSB(n) (n & 255)
  38 #define MSB(n) ((n >> 8) & 255)
  39
  40 #if defined(__AVR_AT90USB162__)
  41 #define HW_CONFIG()
  42 #define PLL_CONFIG() (PLLCSR = ((1<<PLLE)|(1<<PLLP0)))
  43 #define USB_CONFIG() (USBCON = (1<<USBE))
  44 #define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
  45 #elif defined(__AVR_ATmega32U4__)
  46 #define HW_CONFIG() (UHWCON = 0x01)
  47 #define PLL_CONFIG() (PLLCSR = 0x12)
  48 #define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
  49 #define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
  50 #elif defined(__AVR_AT90USB646__)
  51 #define HW_CONFIG() (UHWCON = 0x81)
  52 #define PLL_CONFIG() (PLLCSR = 0x1A)
  53 #define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
  54 #define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
  55 #elif defined(__AVR_AT90USB1286__)
  56 #define HW_CONFIG() (UHWCON = 0x81)
  57 #define PLL_CONFIG() (PLLCSR = 0x16)
  58 #define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
  59 #define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
  60 #endif
  61
  62 // standard control endpoint request types
  63 #define GET_STATUS                      0
  64 #define CLEAR_FEATURE                   1
  65 #define SET_FEATURE                     3
  66 #define SET_ADDRESS                     5
  67 #define GET_DESCRIPTOR                  6
  68 #define GET_CONFIGURATION               8
  69 #define SET_CONFIGURATION               9
  70 #define GET_INTERFACE                   10
  71 #define SET_INTERFACE                   11
  72 // HID (human interface device)
  73 #define HID_GET_REPORT                  1
  74 #define HID_GET_IDLE                    2
  75 #define HID_GET_PROTOCOL                3
  76 #define HID_SET_REPORT                  9
  77 #define HID_SET_IDLE                    10
  78 #define HID_SET_PROTOCOL                11
  79 #define HID_REPORT_INPUT                1
  80 #define HID_REPORT_OUTPUT               2
  81 #define HID_REPORT_FEATURE              3
  82 // CDC (communication class device)
  83 #define CDC_SET_LINE_CODING             0x20
  84 #define CDC_GET_LINE_CODING             0x21
  85 #define CDC_SET_CONTROL_LINE_STATE      0x22
  86 // HID feature selectors
  87 #define DEVICE_REMOTE_WAKEUP            1
  88 #define ENDPOINT_HALT                   0
  89 #define TEST_MODE                       2
  90
  91 // LEDS
  92 #define USB_LED_NUM_LOCK                0
  93 #define USB_LED_CAPS_LOCK               1
  94 #define USB_LED_SCROLL_LOCK             2
  95 #define USB_LED_COMPOSE                 3
  96 #define USB_LED_KANA                    4
  97
  98 #endif