146 lines
4.6 KiB
C
146 lines
4.6 KiB
C
/*
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ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#include <stdio.h>
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#include <string.h>
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#include "ch.h"
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#include "hal.h"
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#include "usbcfg.h"
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static const uint8_t txbuf[] =
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
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"0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef";
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static uint8_t rxbuf[1024];
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/*
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* USB writer. This thread writes data to the USB at maximum rate.
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* Can be measured using:
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* dd if=/dev/xxxx of=/dev/null bs=512 count=10000
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*/
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static THD_WORKING_AREA(waWriter, 128);
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static THD_FUNCTION(Writer, arg) {
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(void)arg;
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chRegSetThreadName("writer");
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while (true) {
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msg_t msg = usbTransmit(&USBD2, USBD2_DATA_REQUEST_EP,
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txbuf, sizeof (txbuf) - 1);
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if (msg == MSG_RESET)
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chThdSleepMilliseconds(500);
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}
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}
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/*
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* USB reader. This thread reads data from the USB at maximum rate.
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* Can be measured using:
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* dd if=bigfile of=/dev/xxx bs=512 count=10000
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*/
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static THD_WORKING_AREA(waReader, 128);
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static THD_FUNCTION(Reader, arg) {
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(void)arg;
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chRegSetThreadName("reader");
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while (true) {
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msg_t msg = usbReceive(&USBD2, USBD2_DATA_AVAILABLE_EP,
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rxbuf, sizeof (rxbuf) - 1);
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if (msg == MSG_RESET)
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chThdSleepMilliseconds(500);
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}
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}
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/*
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* Red LED blinker thread, times are in milliseconds.
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*/
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static THD_WORKING_AREA(waThread1, 128);
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static THD_FUNCTION(Thread1, arg) {
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(void)arg;
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chRegSetThreadName("blinker");
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while (true) {
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systime_t time;
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time = USBD2.state == USB_ACTIVE ? 250 : 500;
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palClearLine(LINE_ARD_D13);
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chThdSleepMilliseconds(time);
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palSetLine(LINE_ARD_D13);
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chThdSleepMilliseconds(time);
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}
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}
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/*
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* Application entry point.
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*/
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int main(void) {
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/*
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* System initializations.
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* - HAL initialization, this also initializes the configured device drivers
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* and performs the board-specific initializations.
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* - Kernel initialization, the main() function becomes a thread and the
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* RTOS is active.
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*/
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halInit();
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chSysInit();
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/*
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* GPIOI1 is programmed as output (board LED).
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*/
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palClearLine(LINE_ARD_D13);
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palSetLineMode(LINE_ARD_D13, PAL_MODE_OUTPUT_PUSHPULL);
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/*
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* Activates the USB driver and then the USB bus pull-up on D+.
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* Note, a delay is inserted in order to not have to disconnect the cable
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* after a reset.
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*/
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usbDisconnectBus(&USBD2);
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chThdSleepMilliseconds(1500);
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usbStart(&USBD2, &usbcfg);
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usbConnectBus(&USBD2);
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/*
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* Starting threads.
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*/
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chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
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chThdCreateStatic(waWriter, sizeof(waWriter), NORMALPRIO, Writer, NULL);
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chThdCreateStatic(waReader, sizeof(waReader), NORMALPRIO, Reader, NULL);
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/*
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* Normal main() thread activity, in this demo it does nothing except
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* sleeping in a loop and check the button state.
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*/
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while (true) {
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chThdSleepMilliseconds(1000);
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}
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}
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