usb: Made the usb example optional

[simavr] / examples / extra_board_usb / at90usb162_cdc_loopback.h

diff --git a/examples/extra_board_usb/at90usb162_cdc_loopback.h b/examples/extra_board_usb/at90usb162_cdc_loopback.h
new file mode 100644 (file)
index 0000000..2d83706
--- /dev/null
+++ b/examples/extra_board_usb/at90usb162_cdc_loopback.h
@@ -0,0 +1,125 @@
+/* vim: set sts=4:sw=4:ts=4:noexpandtab */
+#ifndef usb_serial_h__
+#define usb_serial_h__
+
+#include <stdint.h>
+
+// setup
+void usb_init(void);                   // initialize everything
+uint8_t usb_configured(void);          // is the USB port configured
+
+// receiving data
+int16_t usb_serial_getchar(void);      // receive a character (-1 if timeout/error)
+uint8_t usb_serial_available(void);    // number of bytes in receive buffer
+void usb_serial_flush_input(void);     // discard any buffered input
+
+// transmitting data
+int8_t usb_serial_putchar(uint8_t c);  // transmit a character
+int8_t usb_serial_putchar_nowait(uint8_t c);  // transmit a character, do not wait
+int8_t usb_serial_write(const uint8_t *buffer, uint16_t size); // transmit a buffer
+void usb_serial_flush_output(void);    // immediately transmit any buffered output
+
+// serial parameters
+uint32_t usb_serial_get_baud(void);    // get the baud rate
+uint8_t usb_serial_get_stopbits(void); // get the number of stop bits
+uint8_t usb_serial_get_paritytype(void);// get the parity type
+uint8_t usb_serial_get_numbits(void);  // get the number of data bits
+uint8_t usb_serial_get_control(void);  // get the RTS and DTR signal state
+int8_t usb_serial_set_control(uint8_t signals); // set DSR, DCD, RI, etc
+
+// constants corresponding to the various serial parameters
+#define USB_SERIAL_DTR                 0x01
+#define USB_SERIAL_RTS                 0x02
+#define USB_SERIAL_1_STOP              0
+#define USB_SERIAL_1_5_STOP            1
+#define USB_SERIAL_2_STOP              2
+#define USB_SERIAL_PARITY_NONE         0
+#define USB_SERIAL_PARITY_ODD          1
+#define USB_SERIAL_PARITY_EVEN         2
+#define USB_SERIAL_PARITY_MARK         3
+#define USB_SERIAL_PARITY_SPACE                4
+#define USB_SERIAL_DCD                 0x01
+#define USB_SERIAL_DSR                 0x02
+#define USB_SERIAL_BREAK               0x04
+#define USB_SERIAL_RI                  0x08
+#define USB_SERIAL_FRAME_ERR           0x10
+#define USB_SERIAL_PARITY_ERR          0x20
+#define USB_SERIAL_OVERRUN_ERR         0x40
+
+// This file does not include the HID debug functions, so these empty
+// macros replace them with nothing, so users can compile code that
+// has calls to these functions.
+#define usb_debug_putchar(c)
+#define usb_debug_flush_output()
+
+
+
+// Everything below this point is only intended for usb_serial.c
+#ifdef USB_SERIAL_PRIVATE_INCLUDE
+#include <avr/io.h>
+#include <avr/pgmspace.h>
+#include <avr/interrupt.h>
+
+#define EP_TYPE_CONTROL                        0x00
+#define EP_TYPE_BULK_IN                        0x81
+#define EP_TYPE_BULK_OUT               0x80
+#define EP_TYPE_INTERRUPT_IN           0xC1
+#define EP_TYPE_INTERRUPT_OUT          0xC0
+#define EP_TYPE_ISOCHRONOUS_IN         0x41
+#define EP_TYPE_ISOCHRONOUS_OUT                0x40
+#define EP_SINGLE_BUFFER               0x02
+#define EP_DOUBLE_BUFFER               0x06
+#define EP_SIZE(s)     ((s) == 64 ? 0x30 :     \
+                       ((s) == 32 ? 0x20 :     \
+                       ((s) == 16 ? 0x10 :     \
+                                    0x00)))
+
+#define MAX_ENDPOINT           4
+
+#define LSB(n) (n & 255)
+#define MSB(n) ((n >> 8) & 255)
+
+#if defined(__AVR_AT90USB162__)
+#define HW_CONFIG()
+#define PLL_CONFIG() (PLLCSR = ((1<<PLLE)|(1<<PLLP0)))
+#define USB_CONFIG() (USBCON = (1<<USBE))
+#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
+#elif defined(__AVR_ATmega32U4__)
+#define HW_CONFIG() (UHWCON = 0x01)
+#define PLL_CONFIG() (PLLCSR = 0x12)
+#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
+#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
+#elif defined(__AVR_AT90USB646__)
+#define HW_CONFIG() (UHWCON = 0x81)
+#define PLL_CONFIG() (PLLCSR = 0x1A)
+#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
+#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
+#elif defined(__AVR_AT90USB1286__)
+#define HW_CONFIG() (UHWCON = 0x81)
+#define PLL_CONFIG() (PLLCSR = 0x16)
+#define USB_CONFIG() (USBCON = ((1<<USBE)|(1<<OTGPADE)))
+#define USB_FREEZE() (USBCON = ((1<<USBE)|(1<<FRZCLK)))
+#endif
+
+// standard control endpoint request types
+#define GET_STATUS                     0
+#define CLEAR_FEATURE                  1
+#define SET_FEATURE                    3
+#define SET_ADDRESS                    5
+#define GET_DESCRIPTOR                 6
+#define GET_CONFIGURATION              8
+#define SET_CONFIGURATION              9
+#define GET_INTERFACE                  10
+#define SET_INTERFACE                  11
+// HID (human interface device)
+#define HID_GET_REPORT                 1
+#define HID_GET_PROTOCOL               3
+#define HID_SET_REPORT                 9
+#define HID_SET_IDLE                   10
+#define HID_SET_PROTOCOL               11
+// CDC (communication class device)
+#define CDC_SET_LINE_CODING            0x20
+#define CDC_GET_LINE_CODING            0x21
+#define CDC_SET_CONTROL_LINE_STATE     0x22
+#endif
+#endif