added some stuff in src/lib
Ben Blazak
parent
6570e7ae39
commit
5f4b6c9e09
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@ -0,0 +1,62 @@
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/* Very basic print functions, intended to be used with usb_debug_only.c
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* http://www.pjrc.com/teensy/
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* Copyright (c) 2008 PJRC.COM, LLC
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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// Version 1.0: Initial Release
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#include <avr/io.h>
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#include <avr/pgmspace.h>
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#include "print.h"
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void print_P(const char *s)
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{
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char c;
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while (1) {
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c = pgm_read_byte(s++);
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if (!c) break;
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if (c == '\n') usb_debug_putchar('\r');
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usb_debug_putchar(c);
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}
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}
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void phex1(unsigned char c)
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{
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usb_debug_putchar(c + ((c < 10) ? '0' : 'A' - 10));
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}
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void phex(unsigned char c)
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{
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phex1(c >> 4);
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phex1(c & 15);
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}
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void phex16(unsigned int i)
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{
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phex(i >> 8);
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phex(i);
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}
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@ -0,0 +1,16 @@
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#ifndef print_h__
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#define print_h__
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#include <avr/pgmspace.h>
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#include "usb_debug_only.h"
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// this macro allows you to write print("some text") and
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// the string is automatically placed into flash memory :)
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#define print(s) print_P(PSTR(s))
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#define pchar(c) usb_debug_putchar(c)
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void print_P(const char *s);
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void phex(unsigned char c);
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void phex16(unsigned int i);
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#endif
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@ -0,0 +1,527 @@
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/*
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twi.c - TWI/I2C library for Wiring & Arduino
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Copyright (c) 2006 Nicholas Zambetti. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Modified 2012 by Todd Krein (todd@krein.org) to implement repeated starts
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*/
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#include <math.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <compat/twi.h>
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#include "Arduino.h" // for digitalWrite
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#ifndef cbi
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#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
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#endif
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#ifndef sbi
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#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
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#endif
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#include "pins_arduino.h"
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#include "twi.h"
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static volatile uint8_t twi_state;
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static volatile uint8_t twi_slarw;
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static volatile uint8_t twi_sendStop; // should the transaction end with a stop
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static volatile uint8_t twi_inRepStart; // in the middle of a repeated start
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static void (*twi_onSlaveTransmit)(void);
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static void (*twi_onSlaveReceive)(uint8_t*, int);
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static uint8_t twi_masterBuffer[TWI_BUFFER_LENGTH];
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static volatile uint8_t twi_masterBufferIndex;
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static volatile uint8_t twi_masterBufferLength;
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static uint8_t twi_txBuffer[TWI_BUFFER_LENGTH];
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static volatile uint8_t twi_txBufferIndex;
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static volatile uint8_t twi_txBufferLength;
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static uint8_t twi_rxBuffer[TWI_BUFFER_LENGTH];
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static volatile uint8_t twi_rxBufferIndex;
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static volatile uint8_t twi_error;
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/*
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* Function twi_init
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* Desc readys twi pins and sets twi bitrate
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* Input none
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* Output none
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*/
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void twi_init(void)
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{
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// initialize state
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twi_state = TWI_READY;
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twi_sendStop = true; // default value
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twi_inRepStart = false;
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// activate internal pullups for twi.
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digitalWrite(SDA, 1);
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digitalWrite(SCL, 1);
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// initialize twi prescaler and bit rate
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cbi(TWSR, TWPS0);
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cbi(TWSR, TWPS1);
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TWBR = ((F_CPU / TWI_FREQ) - 16) / 2;
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/* twi bit rate formula from atmega128 manual pg 204
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SCL Frequency = CPU Clock Frequency / (16 + (2 * TWBR))
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note: TWBR should be 10 or higher for master mode
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It is 72 for a 16mhz Wiring board with 100kHz TWI */
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// enable twi module, acks, and twi interrupt
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TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA);
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}
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/*
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* Function twi_slaveInit
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* Desc sets slave address and enables interrupt
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* Input none
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* Output none
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*/
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void twi_setAddress(uint8_t address)
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{
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// set twi slave address (skip over TWGCE bit)
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TWAR = address << 1;
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}
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/*
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* Function twi_readFrom
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* Desc attempts to become twi bus master and read a
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* series of bytes from a device on the bus
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* Input address: 7bit i2c device address
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* data: pointer to byte array
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* length: number of bytes to read into array
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* sendStop: Boolean indicating whether to send a stop at the end
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* Output number of bytes read
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*/
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uint8_t twi_readFrom(uint8_t address, uint8_t* data, uint8_t length, uint8_t sendStop)
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{
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uint8_t i;
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// ensure data will fit into buffer
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if(TWI_BUFFER_LENGTH < length){
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return 0;
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}
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// wait until twi is ready, become master receiver
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while(TWI_READY != twi_state){
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continue;
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}
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twi_state = TWI_MRX;
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twi_sendStop = sendStop;
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// reset error state (0xFF.. no error occured)
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twi_error = 0xFF;
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// initialize buffer iteration vars
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twi_masterBufferIndex = 0;
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twi_masterBufferLength = length-1; // This is not intuitive, read on...
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// On receive, the previously configured ACK/NACK setting is transmitted in
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// response to the received byte before the interrupt is signalled.
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// Therefor we must actually set NACK when the _next_ to last byte is
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// received, causing that NACK to be sent in response to receiving the last
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// expected byte of data.
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// build sla+w, slave device address + w bit
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twi_slarw = TW_READ;
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twi_slarw |= address << 1;
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if (true == twi_inRepStart) {
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// if we're in the repeated start state, then we've already sent the start,
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// (@@@ we hope), and the TWI statemachine is just waiting for the address byte.
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// We need to remove ourselves from the repeated start state before we enable interrupts,
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// since the ISR is ASYNC, and we could get confused if we hit the ISR before cleaning
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// up. Also, don't enable the START interrupt. There may be one pending from the
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// repeated start that we sent outselves, and that would really confuse things.
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twi_inRepStart = false; // remember, we're dealing with an ASYNC ISR
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TWDR = twi_slarw;
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TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START
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}
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else
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// send start condition
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TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTA);
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// wait for read operation to complete
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while(TWI_MRX == twi_state){
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continue;
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}
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if (twi_masterBufferIndex < length)
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length = twi_masterBufferIndex;
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// copy twi buffer to data
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for(i = 0; i < length; ++i){
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data[i] = twi_masterBuffer[i];
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}
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return length;
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}
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/*
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* Function twi_writeTo
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* Desc attempts to become twi bus master and write a
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* series of bytes to a device on the bus
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* Input address: 7bit i2c device address
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* data: pointer to byte array
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* length: number of bytes in array
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* wait: boolean indicating to wait for write or not
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* sendStop: boolean indicating whether or not to send a stop at the end
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* Output 0 .. success
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* 1 .. length to long for buffer
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* 2 .. address send, NACK received
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* 3 .. data send, NACK received
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* 4 .. other twi error (lost bus arbitration, bus error, ..)
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*/
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uint8_t twi_writeTo(uint8_t address, uint8_t* data, uint8_t length, uint8_t wait, uint8_t sendStop)
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{
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uint8_t i;
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// ensure data will fit into buffer
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if(TWI_BUFFER_LENGTH < length){
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return 1;
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}
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// wait until twi is ready, become master transmitter
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while(TWI_READY != twi_state){
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continue;
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}
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twi_state = TWI_MTX;
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twi_sendStop = sendStop;
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// reset error state (0xFF.. no error occured)
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twi_error = 0xFF;
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// initialize buffer iteration vars
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twi_masterBufferIndex = 0;
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twi_masterBufferLength = length;
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// copy data to twi buffer
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for(i = 0; i < length; ++i){
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twi_masterBuffer[i] = data[i];
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}
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// build sla+w, slave device address + w bit
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twi_slarw = TW_WRITE;
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twi_slarw |= address << 1;
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// if we're in a repeated start, then we've already sent the START
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// in the ISR. Don't do it again.
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//
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if (true == twi_inRepStart) {
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// if we're in the repeated start state, then we've already sent the start,
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// (@@@ we hope), and the TWI statemachine is just waiting for the address byte.
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// We need to remove ourselves from the repeated start state before we enable interrupts,
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// since the ISR is ASYNC, and we could get confused if we hit the ISR before cleaning
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// up. Also, don't enable the START interrupt. There may be one pending from the
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// repeated start that we sent outselves, and that would really confuse things.
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twi_inRepStart = false; // remember, we're dealing with an ASYNC ISR
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TWDR = twi_slarw;
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TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE); // enable INTs, but not START
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}
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else
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// send start condition
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TWCR = _BV(TWINT) | _BV(TWEA) | _BV(TWEN) | _BV(TWIE) | _BV(TWSTA); // enable INTs
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// wait for write operation to complete
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while(wait && (TWI_MTX == twi_state)){
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continue;
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}
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if (twi_error == 0xFF)
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return 0; // success
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else if (twi_error == TW_MT_SLA_NACK)
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return 2; // error: address send, nack received
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else if (twi_error == TW_MT_DATA_NACK)
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return 3; // error: data send, nack received
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else
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return 4; // other twi error
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}
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/*
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* Function twi_transmit
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* Desc fills slave tx buffer with data
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* must be called in slave tx event callback
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* Input data: pointer to byte array
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* length: number of bytes in array
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* Output 1 length too long for buffer
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* 2 not slave transmitter
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* 0 ok
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*/
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uint8_t twi_transmit(const uint8_t* data, uint8_t length)
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{
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uint8_t i;
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// ensure data will fit into buffer
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if(TWI_BUFFER_LENGTH < length){
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return 1;
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}
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// ensure we are currently a slave transmitter
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if(TWI_STX != twi_state){
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return 2;
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}
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// set length and copy data into tx buffer
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twi_txBufferLength = length;
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for(i = 0; i < length; ++i){
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twi_txBuffer[i] = data[i];
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}
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return 0;
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}
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/*
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* Function twi_attachSlaveRxEvent
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* Desc sets function called before a slave read operation
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* Input function: callback function to use
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* Output none
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*/
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void twi_attachSlaveRxEvent( void (*function)(uint8_t*, int) )
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{
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twi_onSlaveReceive = function;
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}
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/*
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* Function twi_attachSlaveTxEvent
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* Desc sets function called before a slave write operation
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* Input function: callback function to use
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* Output none
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*/
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void twi_attachSlaveTxEvent( void (*function)(void) )
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{
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twi_onSlaveTransmit = function;
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}
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/*
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* Function twi_reply
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* Desc sends byte or readys receive line
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* Input ack: byte indicating to ack or to nack
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* Output none
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*/
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void twi_reply(uint8_t ack)
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{
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// transmit master read ready signal, with or without ack
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if(ack){
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TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT) | _BV(TWEA);
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}else{
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TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT);
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}
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}
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/*
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* Function twi_stop
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* Desc relinquishes bus master status
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* Input none
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* Output none
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*/
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void twi_stop(void)
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{
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// send stop condition
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TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTO);
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// wait for stop condition to be exectued on bus
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// TWINT is not set after a stop condition!
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while(TWCR & _BV(TWSTO)){
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continue;
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}
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// update twi state
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twi_state = TWI_READY;
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}
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/*
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* Function twi_releaseBus
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* Desc releases bus control
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* Input none
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* Output none
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*/
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void twi_releaseBus(void)
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{
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// release bus
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TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT);
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// update twi state
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twi_state = TWI_READY;
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}
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SIGNAL(TWI_vect)
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{
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switch(TW_STATUS){
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// All Master
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case TW_START: // sent start condition
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case TW_REP_START: // sent repeated start condition
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// copy device address and r/w bit to output register and ack
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TWDR = twi_slarw;
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twi_reply(1);
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break;
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// Master Transmitter
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case TW_MT_SLA_ACK: // slave receiver acked address
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case TW_MT_DATA_ACK: // slave receiver acked data
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// if there is data to send, send it, otherwise stop
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if(twi_masterBufferIndex < twi_masterBufferLength){
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// copy data to output register and ack
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TWDR = twi_masterBuffer[twi_masterBufferIndex++];
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twi_reply(1);
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}else{
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if (twi_sendStop)
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twi_stop();
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else {
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twi_inRepStart = true; // we're gonna send the START
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// don't enable the interrupt. We'll generate the start, but we
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// avoid handling the interrupt until we're in the next transaction,
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// at the point where we would normally issue the start.
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TWCR = _BV(TWINT) | _BV(TWSTA)| _BV(TWEN) ;
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twi_state = TWI_READY;
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}
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}
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break;
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case TW_MT_SLA_NACK: // address sent, nack received
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twi_error = TW_MT_SLA_NACK;
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twi_stop();
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break;
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case TW_MT_DATA_NACK: // data sent, nack received
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twi_error = TW_MT_DATA_NACK;
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twi_stop();
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break;
|
||||
case TW_MT_ARB_LOST: // lost bus arbitration
|
||||
twi_error = TW_MT_ARB_LOST;
|
||||
twi_releaseBus();
|
||||
break;
|
||||
|
||||
// Master Receiver
|
||||
case TW_MR_DATA_ACK: // data received, ack sent
|
||||
// put byte into buffer
|
||||
twi_masterBuffer[twi_masterBufferIndex++] = TWDR;
|
||||
case TW_MR_SLA_ACK: // address sent, ack received
|
||||
// ack if more bytes are expected, otherwise nack
|
||||
if(twi_masterBufferIndex < twi_masterBufferLength){
|
||||
twi_reply(1);
|
||||
}else{
|
||||
twi_reply(0);
|
||||
}
|
||||
break;
|
||||
case TW_MR_DATA_NACK: // data received, nack sent
|
||||
// put final byte into buffer
|
||||
twi_masterBuffer[twi_masterBufferIndex++] = TWDR;
|
||||
if (twi_sendStop)
|
||||
twi_stop();
|
||||
else {
|
||||
twi_inRepStart = true; // we're gonna send the START
|
||||
// don't enable the interrupt. We'll generate the start, but we
|
||||
// avoid handling the interrupt until we're in the next transaction,
|
||||
// at the point where we would normally issue the start.
|
||||
TWCR = _BV(TWINT) | _BV(TWSTA)| _BV(TWEN) ;
|
||||
twi_state = TWI_READY;
|
||||
}
|
||||
break;
|
||||
case TW_MR_SLA_NACK: // address sent, nack received
|
||||
twi_stop();
|
||||
break;
|
||||
// TW_MR_ARB_LOST handled by TW_MT_ARB_LOST case
|
||||
|
||||
// Slave Receiver
|
||||
case TW_SR_SLA_ACK: // addressed, returned ack
|
||||
case TW_SR_GCALL_ACK: // addressed generally, returned ack
|
||||
case TW_SR_ARB_LOST_SLA_ACK: // lost arbitration, returned ack
|
||||
case TW_SR_ARB_LOST_GCALL_ACK: // lost arbitration, returned ack
|
||||
// enter slave receiver mode
|
||||
twi_state = TWI_SRX;
|
||||
// indicate that rx buffer can be overwritten and ack
|
||||
twi_rxBufferIndex = 0;
|
||||
twi_reply(1);
|
||||
break;
|
||||
case TW_SR_DATA_ACK: // data received, returned ack
|
||||
case TW_SR_GCALL_DATA_ACK: // data received generally, returned ack
|
||||
// if there is still room in the rx buffer
|
||||
if(twi_rxBufferIndex < TWI_BUFFER_LENGTH){
|
||||
// put byte in buffer and ack
|
||||
twi_rxBuffer[twi_rxBufferIndex++] = TWDR;
|
||||
twi_reply(1);
|
||||
}else{
|
||||
// otherwise nack
|
||||
twi_reply(0);
|
||||
}
|
||||
break;
|
||||
case TW_SR_STOP: // stop or repeated start condition received
|
||||
// put a null char after data if there's room
|
||||
if(twi_rxBufferIndex < TWI_BUFFER_LENGTH){
|
||||
twi_rxBuffer[twi_rxBufferIndex] = '\0';
|
||||
}
|
||||
// sends ack and stops interface for clock stretching
|
||||
twi_stop();
|
||||
// callback to user defined callback
|
||||
twi_onSlaveReceive(twi_rxBuffer, twi_rxBufferIndex);
|
||||
// since we submit rx buffer to "wire" library, we can reset it
|
||||
twi_rxBufferIndex = 0;
|
||||
// ack future responses and leave slave receiver state
|
||||
twi_releaseBus();
|
||||
break;
|
||||
case TW_SR_DATA_NACK: // data received, returned nack
|
||||
case TW_SR_GCALL_DATA_NACK: // data received generally, returned nack
|
||||
// nack back at master
|
||||
twi_reply(0);
|
||||
break;
|
||||
|
||||
// Slave Transmitter
|
||||
case TW_ST_SLA_ACK: // addressed, returned ack
|
||||
case TW_ST_ARB_LOST_SLA_ACK: // arbitration lost, returned ack
|
||||
// enter slave transmitter mode
|
||||
twi_state = TWI_STX;
|
||||
// ready the tx buffer index for iteration
|
||||
twi_txBufferIndex = 0;
|
||||
// set tx buffer length to be zero, to verify if user changes it
|
||||
twi_txBufferLength = 0;
|
||||
// request for txBuffer to be filled and length to be set
|
||||
// note: user must call twi_transmit(bytes, length) to do this
|
||||
twi_onSlaveTransmit();
|
||||
// if they didn't change buffer & length, initialize it
|
||||
if(0 == twi_txBufferLength){
|
||||
twi_txBufferLength = 1;
|
||||
twi_txBuffer[0] = 0x00;
|
||||
}
|
||||
// transmit first byte from buffer, fall
|
||||
case TW_ST_DATA_ACK: // byte sent, ack returned
|
||||
// copy data to output register
|
||||
TWDR = twi_txBuffer[twi_txBufferIndex++];
|
||||
// if there is more to send, ack, otherwise nack
|
||||
if(twi_txBufferIndex < twi_txBufferLength){
|
||||
twi_reply(1);
|
||||
}else{
|
||||
twi_reply(0);
|
||||
}
|
||||
break;
|
||||
case TW_ST_DATA_NACK: // received nack, we are done
|
||||
case TW_ST_LAST_DATA: // received ack, but we are done already!
|
||||
// ack future responses
|
||||
twi_reply(1);
|
||||
// leave slave receiver state
|
||||
twi_state = TWI_READY;
|
||||
break;
|
||||
|
||||
// All
|
||||
case TW_NO_INFO: // no state information
|
||||
break;
|
||||
case TW_BUS_ERROR: // bus error, illegal stop/start
|
||||
twi_error = TW_BUS_ERROR;
|
||||
twi_stop();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,53 @@
|
|||
/*
|
||||
twi.h - TWI/I2C library for Wiring & Arduino
|
||||
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
|
||||
|
||||
This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
This library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with this library; if not, write to the Free Software
|
||||
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#ifndef twi_h
|
||||
#define twi_h
|
||||
|
||||
#include <inttypes.h>
|
||||
|
||||
//#define ATMEGA8
|
||||
|
||||
#ifndef TWI_FREQ
|
||||
#define TWI_FREQ 100000L
|
||||
#endif
|
||||
|
||||
#ifndef TWI_BUFFER_LENGTH
|
||||
#define TWI_BUFFER_LENGTH 32
|
||||
#endif
|
||||
|
||||
#define TWI_READY 0
|
||||
#define TWI_MRX 1
|
||||
#define TWI_MTX 2
|
||||
#define TWI_SRX 3
|
||||
#define TWI_STX 4
|
||||
|
||||
void twi_init(void);
|
||||
void twi_setAddress(uint8_t);
|
||||
uint8_t twi_readFrom(uint8_t, uint8_t*, uint8_t, uint8_t);
|
||||
uint8_t twi_writeTo(uint8_t, uint8_t*, uint8_t, uint8_t, uint8_t);
|
||||
uint8_t twi_transmit(const uint8_t*, uint8_t);
|
||||
void twi_attachSlaveRxEvent( void (*)(uint8_t*, int) );
|
||||
void twi_attachSlaveTxEvent( void (*)(void) );
|
||||
void twi_reply(uint8_t);
|
||||
void twi_stop(void);
|
||||
void twi_releaseBus(void);
|
||||
|
||||
#endif
|
||||
|
||||
|
|
@ -0,0 +1,549 @@
|
|||
/* USB Debug Channel Example for Teensy USB Development Board
|
||||
* http://www.pjrc.com/teensy/
|
||||
* Copyright (c) 2008 PJRC.COM, LLC
|
||||
*
|
||||
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
* of this software and associated documentation files (the "Software"), to deal
|
||||
* in the Software without restriction, including without limitation the rights
|
||||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
* copies of the Software, and to permit persons to whom the Software is
|
||||
* furnished to do so, subject to the following conditions:
|
||||
*
|
||||
* The above copyright notice and this permission notice shall be included in
|
||||
* all copies or substantial portions of the Software.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
* THE SOFTWARE.
|
||||
*/
|
||||
|
||||
// Version 1.0: Initial Release
|
||||
// Version 1.1: Add support for Teensy 2.0
|
||||
|
||||
#define USB_SERIAL_PRIVATE_INCLUDE
|
||||
#include "usb_debug_only.h"
|
||||
|
||||
/**************************************************************************
|
||||
*
|
||||
* Configurable Options
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
// You can change these to give your code its own name. On Windows,
|
||||
// these are only used before an INF file (driver install) is loaded.
|
||||
#define STR_MANUFACTURER L"Your Name"
|
||||
#define STR_PRODUCT L"Your USB Device"
|
||||
|
||||
|
||||
// Mac OS-X and Linux automatically load the correct drivers. On
|
||||
// Windows, even though the driver is supplied by Microsoft, an
|
||||
// INF file is needed to load the driver. These numbers need to
|
||||
// match the INF file.
|
||||
#define VENDOR_ID 0x16C0
|
||||
#define PRODUCT_ID 0x0479
|
||||
|
||||
|
||||
// USB devices are supposed to implment a halt feature, which is
|
||||
// rarely (if ever) used. If you comment this line out, the halt
|
||||
// code will be removed, saving 102 bytes of space (gcc 4.3.0).
|
||||
// This is not strictly USB compliant, but works with all major
|
||||
// operating systems.
|
||||
#define SUPPORT_ENDPOINT_HALT
|
||||
|
||||
|
||||
|
||||
/**************************************************************************
|
||||
*
|
||||
* Endpoint Buffer Configuration
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
// you might want to change the buffer size, up to 64 bytes.
|
||||
// The host reserves your bandwidth because this is an interrupt
|
||||
// endpoint, so it won't be available to other interrupt or isync
|
||||
// endpoints in other devices on the bus.
|
||||
|
||||
#define ENDPOINT0_SIZE 32
|
||||
#define DEBUG_TX_ENDPOINT 3
|
||||
#define DEBUG_TX_SIZE 32
|
||||
#define DEBUG_TX_BUFFER EP_DOUBLE_BUFFER
|
||||
|
||||
static const uint8_t PROGMEM endpoint_config_table[] = {
|
||||
0,
|
||||
0,
|
||||
1, EP_TYPE_INTERRUPT_IN, EP_SIZE(DEBUG_TX_SIZE) | DEBUG_TX_BUFFER,
|
||||
0
|
||||
};
|
||||
|
||||
|
||||
/**************************************************************************
|
||||
*
|
||||
* Descriptor Data
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
// Descriptors are the data that your computer reads when it auto-detects
|
||||
// this USB device (called "enumeration" in USB lingo). The most commonly
|
||||
// changed items are editable at the top of this file. Changing things
|
||||
// in here should only be done by those who've read chapter 9 of the USB
|
||||
// spec and relevant portions of any USB class specifications!
|
||||
|
||||
|
||||
static uint8_t PROGMEM device_descriptor[] = {
|
||||
18, // bLength
|
||||
1, // bDescriptorType
|
||||
0x00, 0x02, // bcdUSB
|
||||
0, // bDeviceClass
|
||||
0, // bDeviceSubClass
|
||||
0, // bDeviceProtocol
|
||||
ENDPOINT0_SIZE, // bMaxPacketSize0
|
||||
LSB(VENDOR_ID), MSB(VENDOR_ID), // idVendor
|
||||
LSB(PRODUCT_ID), MSB(PRODUCT_ID), // idProduct
|
||||
0x00, 0x01, // bcdDevice
|
||||
1, // iManufacturer
|
||||
2, // iProduct
|
||||
0, // iSerialNumber
|
||||
1 // bNumConfigurations
|
||||
};
|
||||
|
||||
static uint8_t PROGMEM hid_report_descriptor[] = {
|
||||
0x06, 0x31, 0xFF, // Usage Page 0xFF31 (vendor defined)
|
||||
0x09, 0x74, // Usage 0x74
|
||||
0xA1, 0x53, // Collection 0x53
|
||||
0x75, 0x08, // report size = 8 bits
|
||||
0x15, 0x00, // logical minimum = 0
|
||||
0x26, 0xFF, 0x00, // logical maximum = 255
|
||||
0x95, DEBUG_TX_SIZE, // report count
|
||||
0x09, 0x75, // usage
|
||||
0x81, 0x02, // Input (array)
|
||||
0xC0 // end collection
|
||||
};
|
||||
|
||||
#define CONFIG1_DESC_SIZE (9+9+9+7)
|
||||
#define HID_DESC2_OFFSET (9+9)
|
||||
static uint8_t PROGMEM config1_descriptor[CONFIG1_DESC_SIZE] = {
|
||||
// configuration descriptor, USB spec 9.6.3, page 264-266, Table 9-10
|
||||
9, // bLength;
|
||||
2, // bDescriptorType;
|
||||
LSB(CONFIG1_DESC_SIZE), // wTotalLength
|
||||
MSB(CONFIG1_DESC_SIZE),
|
||||
1, // bNumInterfaces
|
||||
1, // bConfigurationValue
|
||||
0, // iConfiguration
|
||||
0xC0, // bmAttributes
|
||||
50, // bMaxPower
|
||||
// interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
|
||||
9, // bLength
|
||||
4, // bDescriptorType
|
||||
0, // bInterfaceNumber
|
||||
0, // bAlternateSetting
|
||||
1, // bNumEndpoints
|
||||
0x03, // bInterfaceClass (0x03 = HID)
|
||||
0x00, // bInterfaceSubClass
|
||||
0x00, // bInterfaceProtocol
|
||||
0, // iInterface
|
||||
// HID interface descriptor, HID 1.11 spec, section 6.2.1
|
||||
9, // bLength
|
||||
0x21, // bDescriptorType
|
||||
0x11, 0x01, // bcdHID
|
||||
0, // bCountryCode
|
||||
1, // bNumDescriptors
|
||||
0x22, // bDescriptorType
|
||||
sizeof(hid_report_descriptor), // wDescriptorLength
|
||||
0,
|
||||
// endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
|
||||
7, // bLength
|
||||
5, // bDescriptorType
|
||||
DEBUG_TX_ENDPOINT | 0x80, // bEndpointAddress
|
||||
0x03, // bmAttributes (0x03=intr)
|
||||
DEBUG_TX_SIZE, 0, // wMaxPacketSize
|
||||
1 // bInterval
|
||||
};
|
||||
|
||||
// If you're desperate for a little extra code memory, these strings
|
||||
// can be completely removed if iManufacturer, iProduct, iSerialNumber
|
||||
// in the device desciptor are changed to zeros.
|
||||
struct usb_string_descriptor_struct {
|
||||
uint8_t bLength;
|
||||
uint8_t bDescriptorType;
|
||||
int16_t wString[];
|
||||
};
|
||||
static struct usb_string_descriptor_struct PROGMEM string0 = {
|
||||
4,
|
||||
3,
|
||||
{0x0409}
|
||||
};
|
||||
static struct usb_string_descriptor_struct PROGMEM string1 = {
|
||||
sizeof(STR_MANUFACTURER),
|
||||
3,
|
||||
STR_MANUFACTURER
|
||||
};
|
||||
static struct usb_string_descriptor_struct PROGMEM string2 = {
|
||||
sizeof(STR_PRODUCT),
|
||||
3,
|
||||
STR_PRODUCT
|
||||
};
|
||||
|
||||
// This table defines which descriptor data is sent for each specific
|
||||
// request from the host (in wValue and wIndex).
|
||||
static struct descriptor_list_struct {
|
||||
uint16_t wValue;
|
||||
uint16_t wIndex;
|
||||
const uint8_t *addr;
|
||||
uint8_t length;
|
||||
} PROGMEM descriptor_list[] = {
|
||||
{0x0100, 0x0000, device_descriptor, sizeof(device_descriptor)},
|
||||
{0x0200, 0x0000, config1_descriptor, sizeof(config1_descriptor)},
|
||||
{0x2200, 0x0000, hid_report_descriptor, sizeof(hid_report_descriptor)},
|
||||
{0x2100, 0x0000, config1_descriptor+HID_DESC2_OFFSET, 9},
|
||||
{0x0300, 0x0000, (const uint8_t *)&string0, 4},
|
||||
{0x0301, 0x0409, (const uint8_t *)&string1, sizeof(STR_MANUFACTURER)},
|
||||
{0x0302, 0x0409, (const uint8_t *)&string2, sizeof(STR_PRODUCT)}
|
||||
};
|
||||
#define NUM_DESC_LIST (sizeof(descriptor_list)/sizeof(struct descriptor_list_struct))
|
||||
|
||||
|
||||
/**************************************************************************
|
||||
*
|
||||
* Variables - these are the only non-stack RAM usage
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
// zero when we are not configured, non-zero when enumerated
|
||||
static volatile uint8_t usb_configuration=0;
|
||||
|
||||
// the time remaining before we transmit any partially full
|
||||
// packet, or send a zero length packet.
|
||||
static volatile uint8_t debug_flush_timer=0;
|
||||
|
||||
|
||||
/**************************************************************************
|
||||
*
|
||||
* Public Functions - these are the API intended for the user
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
|
||||
// initialize USB
|
||||
void usb_init(void)
|
||||
{
|
||||
HW_CONFIG();
|
||||
USB_FREEZE(); // enable USB
|
||||
PLL_CONFIG(); // config PLL
|
||||
while (!(PLLCSR & (1<<PLOCK))) ; // wait for PLL lock
|
||||
USB_CONFIG(); // start USB clock
|
||||
UDCON = 0; // enable attach resistor
|
||||
usb_configuration = 0;
|
||||
UDIEN = (1<<EORSTE)|(1<<SOFE);
|
||||
sei();
|
||||
}
|
||||
|
||||
// return 0 if the USB is not configured, or the configuration
|
||||
// number selected by the HOST
|
||||
uint8_t usb_configured(void)
|
||||
{
|
||||
return usb_configuration;
|
||||
}
|
||||
|
||||
// transmit a character. 0 returned on success, -1 on error
|
||||
int8_t usb_debug_putchar(uint8_t c)
|
||||
{
|
||||
static uint8_t previous_timeout=0;
|
||||
uint8_t timeout, intr_state;
|
||||
|
||||
// if we're not online (enumerated and configured), error
|
||||
if (!usb_configuration) return -1;
|
||||
// interrupts are disabled so these functions can be
|
||||
// used from the main program or interrupt context,
|
||||
// even both in the same program!
|
||||
intr_state = SREG;
|
||||
cli();
|
||||
UENUM = DEBUG_TX_ENDPOINT;
|
||||
// if we gave up due to timeout before, don't wait again
|
||||
if (previous_timeout) {
|
||||
if (!(UEINTX & (1<<RWAL))) {
|
||||
SREG = intr_state;
|
||||
return -1;
|
||||
}
|
||||
previous_timeout = 0;
|
||||
}
|
||||
// wait for the FIFO to be ready to accept data
|
||||
timeout = UDFNUML + 4;
|
||||
while (1) {
|
||||
// are we ready to transmit?
|
||||
if (UEINTX & (1<<RWAL)) break;
|
||||
SREG = intr_state;
|
||||
// have we waited too long?
|
||||
if (UDFNUML == timeout) {
|
||||
previous_timeout = 1;
|
||||
return -1;
|
||||
}
|
||||
// has the USB gone offline?
|
||||
if (!usb_configuration) return -1;
|
||||
// get ready to try checking again
|
||||
intr_state = SREG;
|
||||
cli();
|
||||
UENUM = DEBUG_TX_ENDPOINT;
|
||||
}
|
||||
// actually write the byte into the FIFO
|
||||
UEDATX = c;
|
||||
// if this completed a packet, transmit it now!
|
||||
if (!(UEINTX & (1<<RWAL))) {
|
||||
UEINTX = 0x3A;
|
||||
debug_flush_timer = 0;
|
||||
} else {
|
||||
debug_flush_timer = 2;
|
||||
}
|
||||
SREG = intr_state;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
// immediately transmit any buffered output.
|
||||
void usb_debug_flush_output(void)
|
||||
{
|
||||
uint8_t intr_state;
|
||||
|
||||
intr_state = SREG;
|
||||
cli();
|
||||
if (debug_flush_timer) {
|
||||
UENUM = DEBUG_TX_ENDPOINT;
|
||||
while ((UEINTX & (1<<RWAL))) {
|
||||
UEDATX = 0;
|
||||
}
|
||||
UEINTX = 0x3A;
|
||||
debug_flush_timer = 0;
|
||||
}
|
||||
SREG = intr_state;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**************************************************************************
|
||||
*
|
||||
* Private Functions - not intended for general user consumption....
|
||||
*
|
||||
**************************************************************************/
|
||||
|
||||
|
||||
|
||||
// USB Device Interrupt - handle all device-level events
|
||||
// the transmit buffer flushing is triggered by the start of frame
|
||||
//
|
||||
ISR(USB_GEN_vect)
|
||||
{
|
||||
uint8_t intbits, t;
|
||||
|
||||
intbits = UDINT;
|
||||
UDINT = 0;
|
||||
if (intbits & (1<<EORSTI)) {
|
||||
UENUM = 0;
|
||||
UECONX = 1;
|
||||
UECFG0X = EP_TYPE_CONTROL;
|
||||
UECFG1X = EP_SIZE(ENDPOINT0_SIZE) | EP_SINGLE_BUFFER;
|
||||
UEIENX = (1<<RXSTPE);
|
||||
usb_configuration = 0;
|
||||
}
|
||||
if (intbits & (1<<SOFI)) {
|
||||
if (usb_configuration) {
|
||||
t = debug_flush_timer;
|
||||
if (t) {
|
||||
debug_flush_timer = -- t;
|
||||
if (!t) {
|
||||
UENUM = DEBUG_TX_ENDPOINT;
|
||||
while ((UEINTX & (1<<RWAL))) {
|
||||
UEDATX = 0;
|
||||
}
|
||||
UEINTX = 0x3A;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// Misc functions to wait for ready and send/receive packets
|
||||
static inline void usb_wait_in_ready(void)
|
||||
{
|
||||
while (!(UEINTX & (1<<TXINI))) ;
|
||||
}
|
||||
static inline void usb_send_in(void)
|
||||
{
|
||||
UEINTX = ~(1<<TXINI);
|
||||
}
|
||||
static inline void usb_wait_receive_out(void)
|
||||
{
|
||||
while (!(UEINTX & (1<<RXOUTI))) ;
|
||||
}
|
||||
static inline void usb_ack_out(void)
|
||||
{
|
||||
UEINTX = ~(1<<RXOUTI);
|
||||
}
|
||||
|
||||
|
||||
|
||||
// USB Endpoint Interrupt - endpoint 0 is handled here. The
|
||||
// other endpoints are manipulated by the user-callable
|
||||
// functions, and the start-of-frame interrupt.
|
||||
//
|
||||
ISR(USB_COM_vect)
|
||||
{
|
||||
uint8_t intbits;
|
||||
const uint8_t *list;
|
||||
const uint8_t *cfg;
|
||||
uint8_t i, n, len, en;
|
||||
uint8_t bmRequestType;
|
||||
uint8_t bRequest;
|
||||
uint16_t wValue;
|
||||
uint16_t wIndex;
|
||||
uint16_t wLength;
|
||||
uint16_t desc_val;
|
||||
const uint8_t *desc_addr;
|
||||
uint8_t desc_length;
|
||||
|
||||
UENUM = 0;
|
||||
intbits = UEINTX;
|
||||
if (intbits & (1<<RXSTPI)) {
|
||||
bmRequestType = UEDATX;
|
||||
bRequest = UEDATX;
|
||||
wValue = UEDATX;
|
||||
wValue |= (UEDATX << 8);
|
||||
wIndex = UEDATX;
|
||||
wIndex |= (UEDATX << 8);
|
||||
wLength = UEDATX;
|
||||
wLength |= (UEDATX << 8);
|
||||
UEINTX = ~((1<<RXSTPI) | (1<<RXOUTI) | (1<<TXINI));
|
||||
if (bRequest == GET_DESCRIPTOR) {
|
||||
list = (const uint8_t *)descriptor_list;
|
||||
for (i=0; ; i++) {
|
||||
if (i >= NUM_DESC_LIST) {
|
||||
UECONX = (1<<STALLRQ)|(1<<EPEN); //stall
|
||||
return;
|
||||
}
|
||||
desc_val = pgm_read_word(list);
|
||||
if (desc_val != wValue) {
|
||||
list += sizeof(struct descriptor_list_struct);
|
||||
continue;
|
||||
}
|
||||
list += 2;
|
||||
desc_val = pgm_read_word(list);
|
||||
if (desc_val != wIndex) {
|
||||
list += sizeof(struct descriptor_list_struct)-2;
|
||||
continue;
|
||||
}
|
||||
list += 2;
|
||||
desc_addr = (const uint8_t *)pgm_read_word(list);
|
||||
list += 2;
|
||||
desc_length = pgm_read_byte(list);
|
||||
break;
|
||||
}
|
||||
len = (wLength < 256) ? wLength : 255;
|
||||
if (len > desc_length) len = desc_length;
|
||||
do {
|
||||
// wait for host ready for IN packet
|
||||
do {
|
||||
i = UEINTX;
|
||||
} while (!(i & ((1<<TXINI)|(1<<RXOUTI))));
|
||||
if (i & (1<<RXOUTI)) return; // abort
|
||||
// send IN packet
|
||||
n = len < ENDPOINT0_SIZE ? len : ENDPOINT0_SIZE;
|
||||
for (i = n; i; i--) {
|
||||
UEDATX = pgm_read_byte(desc_addr++);
|
||||
}
|
||||
len -= n;
|
||||
usb_send_in();
|
||||
} while (len || n == ENDPOINT0_SIZE);
|
||||
return;
|
||||
}
|
||||
if (bRequest == SET_ADDRESS) {
|
||||
usb_send_in();
|
||||
usb_wait_in_ready();
|
||||
UDADDR = wValue | (1<<ADDEN);
|
||||
return;
|
||||
}
|
||||
if (bRequest == SET_CONFIGURATION && bmRequestType == 0) {
|
||||
usb_configuration = wValue;
|
||||
usb_send_in();
|
||||
cfg = endpoint_config_table;
|
||||
for (i=1; i<5; i++) {
|
||||
UENUM = i;
|
||||
en = pgm_read_byte(cfg++);
|
||||
UECONX = en;
|
||||
if (en) {
|
||||
UECFG0X = pgm_read_byte(cfg++);
|
||||
UECFG1X = pgm_read_byte(cfg++);
|
||||
}
|
||||
}
|
||||
UERST = 0x1E;
|
||||
UERST = 0;
|
||||
return;
|
||||
}
|
||||
if (bRequest == GET_CONFIGURATION && bmRequestType == 0x80) {
|
||||
usb_wait_in_ready();
|
||||
UEDATX = usb_configuration;
|
||||
usb_send_in();
|
||||
return;
|
||||
}
|
||||
|
||||
if (bRequest == GET_STATUS) {
|
||||
usb_wait_in_ready();
|
||||
i = 0;
|
||||
#ifdef SUPPORT_ENDPOINT_HALT
|
||||
if (bmRequestType == 0x82) {
|
||||
UENUM = wIndex;
|
||||
if (UECONX & (1<<STALLRQ)) i = 1;
|
||||
UENUM = 0;
|
||||
}
|
||||
#endif
|
||||
UEDATX = i;
|
||||
UEDATX = 0;
|
||||
usb_send_in();
|
||||
return;
|
||||
}
|
||||
#ifdef SUPPORT_ENDPOINT_HALT
|
||||
if ((bRequest == CLEAR_FEATURE || bRequest == SET_FEATURE)
|
||||
&& bmRequestType == 0x02 && wValue == 0) {
|
||||
i = wIndex & 0x7F;
|
||||
if (i >= 1 && i <= MAX_ENDPOINT) {
|
||||
usb_send_in();
|
||||
UENUM = i;
|
||||
if (bRequest == SET_FEATURE) {
|
||||
UECONX = (1<<STALLRQ)|(1<<EPEN);
|
||||
} else {
|
||||
UECONX = (1<<STALLRQC)|(1<<RSTDT)|(1<<EPEN);
|
||||
UERST = (1 << i);
|
||||
UERST = 0;
|
||||
}
|
||||
return;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
if (bRequest == HID_GET_REPORT && bmRequestType == 0xA1) {
|
||||
if (wIndex == 0) {
|
||||
len = wLength;
|
||||
do {
|
||||
// wait for host ready for IN packet
|
||||
do {
|
||||
i = UEINTX;
|
||||
} while (!(i & ((1<<TXINI)|(1<<RXOUTI))));
|
||||
if (i & (1<<RXOUTI)) return; // abort
|
||||
// send IN packet
|
||||
n = len < ENDPOINT0_SIZE ? len : ENDPOINT0_SIZE;
|
||||
for (i = n; i; i--) {
|
||||
UEDATX = 0;
|
||||
}
|
||||
len -= n;
|
||||
usb_send_in();
|
||||
} while (len || n == ENDPOINT0_SIZE);
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
UECONX = (1<<STALLRQ) | (1<<EPEN); // stall
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -0,0 +1,84 @@
|
|||
#ifndef usb_serial_h__
|
||||
#define usb_serial_h__
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
void usb_init(void); // initialize everything
|
||||
uint8_t usb_configured(void); // is the USB port configured
|
||||
|
||||
int8_t usb_debug_putchar(uint8_t c); // transmit a character
|
||||
void usb_debug_flush_output(void); // immediately transmit any buffered output
|
||||
#define USB_DEBUG_HID
|
||||
|
||||
|
||||
// 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
|
||||
Loading…
Reference in New Issue