| /**************************************************************************** |
| * apps/examples/usbserial/usbserial_main.c |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. The |
| * ASF licenses this file to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the |
| * License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations |
| * under the License. |
| * |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include <nuttx/config.h> |
| |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <sys/boardctl.h> |
| |
| #include <stdio.h> |
| #include <unistd.h> |
| #include <string.h> |
| #include <fcntl.h> |
| #include <errno.h> |
| #include <debug.h> |
| |
| #include <nuttx/usb/usbdev.h> |
| #include <nuttx/usb/usbdev_trace.h> |
| |
| #ifdef CONFIG_CDCACM |
| # include <nuttx/usb/cdcacm.h> |
| #endif |
| |
| /**************************************************************************** |
| * Pre-processor Definitions |
| ****************************************************************************/ |
| |
| #if defined(CONFIG_EXAMPLES_USBSERIAL_INONLY) && defined(CONFIG_EXAMPLES_USBSERIAL_OUTONLY) |
| # error "Cannot define both CONFIG_EXAMPLES_USBSERIAL_INONLY and _OUTONLY" |
| #endif |
| #if defined(CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL) && defined(CONFIG_EXAMPLES_USBSERIAL_ONLYBIG) |
| # error "Cannot define both CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL and _ONLYBIG" |
| #endif |
| |
| #if !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYBIG) && !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL) |
| # ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY |
| # define COUNTER_NEEDED 1 |
| # endif |
| #endif |
| |
| #ifndef CONFIG_USBDEV_TRACE_INITIALIDSET |
| # define CONFIG_USBDEV_TRACE_INITIALIDSET 0 |
| #endif |
| |
| #ifdef CONFIG_EXAMPLES_USBSERIAL_TRACEINIT |
| # define TRACE_INIT_BITS (TRACE_INIT_BIT) |
| #else |
| # define TRACE_INIT_BITS (0) |
| #endif |
| |
| #define TRACE_ERROR_BITS (TRACE_DEVERROR_BIT|TRACE_CLSERROR_BIT) |
| |
| #ifdef CONFIG_EXAMPLES_USBSERIAL_TRACECLASS |
| # define TRACE_CLASS_BITS (TRACE_CLASS_BIT|TRACE_CLASSAPI_BIT|TRACE_CLASSSTATE_BIT) |
| #else |
| # define TRACE_CLASS_BITS (0) |
| #endif |
| |
| #ifdef CONFIG_EXAMPLES_USBSERIAL_TRACETRANSFERS |
| # define TRACE_TRANSFER_BITS (TRACE_OUTREQQUEUED_BIT|TRACE_INREQQUEUED_BIT|TRACE_READ_BIT|\ |
| TRACE_WRITE_BIT|TRACE_COMPLETE_BIT) |
| #else |
| # define TRACE_TRANSFER_BITS (0) |
| #endif |
| |
| #ifdef CONFIG_EXAMPLES_USBSERIAL_TRACECONTROLLER |
| # define TRACE_CONTROLLER_BITS (TRACE_EP_BIT|TRACE_DEV_BIT) |
| #else |
| # define TRACE_CONTROLLER_BITS (0) |
| #endif |
| |
| #ifdef CONFIG_EXAMPLES_USBSERIAL_TRACEINTERRUPTS |
| # define TRACE_INTERRUPT_BITS (TRACE_INTENTRY_BIT|TRACE_INTDECODE_BIT|TRACE_INTEXIT_BIT) |
| #else |
| # define TRACE_INTERRUPT_BITS (0) |
| #endif |
| |
| #define TRACE_BITSET (TRACE_INIT_BITS|TRACE_ERROR_BITS|TRACE_CLASS_BITS|\ |
| TRACE_TRANSFER_BITS|TRACE_CONTROLLER_BITS|TRACE_INTERRUPT_BITS) |
| #ifdef CONFIG_CDCACM |
| # define USBSER_DEVNAME "/dev/ttyACM0" |
| #else |
| # define USBSER_DEVNAME "/dev/ttyUSB0" |
| #endif |
| |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_BUFSIZE |
| # define CONFIG_EXAMPLES_USBSERIAL_BUFSIZE 256 |
| #endif |
| |
| /**************************************************************************** |
| * Private Data |
| ****************************************************************************/ |
| |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_ONLYBIG |
| static const char g_shortmsg[] = "Hello, World!!\n"; |
| #endif |
| |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL |
| static const char g_longmsg[] = |
| "The Spanish Armada a Speech by Queen Elizabeth I of England\n" |
| "Addressed to the English army at Tilbury Fort - 1588\n" |
| "My loving people, we have been persuaded by some, that are careful of our " |
| "safety, to take heed how we commit ourselves to armed multitudes, for fear " |
| "of treachery; but I assure you, I do not desire to live to distrust my " |
| "faithful and loving people.\n" |
| "Let tyrants fear; I have always so behaved myself that, under God, I have " |
| "placed my chiefest strength and safeguard in the loyal hearts and good will " |
| "of my subjects. And therefore I am come amongst you at this time, not as for " |
| "my recreation or sport, but being resolved, in the midst and heat of the " |
| "battle, to live or die amongst you all; to lay down, for my God, and for " |
| "my kingdom, and for my people, my honour and my blood, even the dust.\n" |
| "I know I have but the body of a weak and feeble woman; but I have the heart " |
| "of a king, and of a king of England, too; and think foul scorn that Parma " |
| "or Spain, or any prince of Europe, should dare to invade the borders of my " |
| "realms: to which, rather than any dishonour should grow by me, I myself will " |
| "take up arms; I myself will be your general, judge, and rewarder of every " |
| "one of your virtues in the field.\n" |
| "I know already, by your forwardness, that you have deserved rewards and " |
| "crowns; and we do assure you, on the word of a prince, they shall be duly " |
| "paid you. In the mean my lieutenant general shall be in my stead, than whom " |
| "never prince commanded a more noble and worthy subject; not doubting by " |
| "your obedience to my general, by your concord in the camp, and by your " |
| "valour in the field, we shall shortly have a famous victory over the enemies " |
| "of my God, of my kingdom, and of my people.\n"; |
| #endif |
| |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY |
| static char g_iobuffer[CONFIG_EXAMPLES_USBSERIAL_BUFSIZE]; |
| #endif |
| |
| /**************************************************************************** |
| * Private Functions |
| ****************************************************************************/ |
| |
| #ifdef CONFIG_USBDEV_TRACE |
| static int trace_callback(struct usbtrace_s *trace, void *arg) |
| { |
| usbtrace_trprintf((trprintf_t)printf, trace->event, trace->value); |
| return 0; |
| } |
| |
| static void dumptrace(void) |
| { |
| usbtrace_enumerate(trace_callback, NULL); |
| } |
| #else |
| # define dumptrace() |
| #endif |
| |
| /**************************************************************************** |
| * Public Functions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * usbserial_main |
| ****************************************************************************/ |
| |
| int main(int argc, FAR char *argv[]) |
| { |
| struct boardioc_usbdev_ctrl_s ctrl; |
| FAR void *handle; |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY |
| int infd; |
| #endif |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY |
| int outfd; |
| #endif |
| #ifdef COUNTER_NEEDED |
| int count = 0; |
| #endif |
| ssize_t nbytes; |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY |
| int i, j, k; |
| #endif |
| int ret; |
| |
| /* Initialize the USB serial driver */ |
| |
| printf("usbserial_main: Registering USB serial driver\n"); |
| |
| #ifdef CONFIG_CDCACM |
| |
| ctrl.usbdev = BOARDIOC_USBDEV_CDCACM; |
| ctrl.action = BOARDIOC_USBDEV_CONNECT; |
| ctrl.instance = 0; |
| ctrl.handle = &handle; |
| |
| #else |
| |
| ctrl.usbdev = BOARDIOC_USBDEV_PL2303; |
| ctrl.action = BOARDIOC_USBDEV_CONNECT; |
| ctrl.instance = 0; |
| ctrl.handle = &handle; |
| |
| #endif |
| |
| ret = boardctl(BOARDIOC_USBDEV_CONTROL, (uintptr_t)&ctrl); |
| if (ret < 0) |
| { |
| printf("usbserial_main: ERROR: Failed to create the USB serial device: %d\n", |
| -ret); |
| return 1; |
| } |
| |
| printf("usbserial_main: Successfully registered the serial driver\n"); |
| |
| #if defined(CONFIG_USBDEV_TRACE) && CONFIG_USBDEV_TRACE_INITIALIDSET != 0 |
| /* If USB tracing is enabled and tracing of initial USB events is specified, |
| * then dump all collected trace data to stdout |
| */ |
| |
| sleep(5); |
| dumptrace(); |
| #endif |
| |
| /* Then, in any event, configure trace data collection as configured */ |
| |
| usbtrace_enable(TRACE_BITSET); |
| |
| /* Open the USB serial device for writing (blocking) */ |
| |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY |
| do |
| { |
| printf("usbserial_main: Opening USB serial driver\n"); |
| outfd = open(USBSER_DEVNAME, O_WRONLY); |
| if (outfd < 0) |
| { |
| int errcode = errno; |
| printf("usbserial_main: ERROR: Failed to open " USBSER_DEVNAME |
| " for writing: %d\n", errcode); |
| |
| /* ENOTCONN means that the USB device is not yet connected */ |
| |
| if (errcode == ENOTCONN) |
| { |
| printf("usbserial_main: Not connected. Wait and try again.\n"); |
| sleep(5); |
| } |
| else |
| { |
| /* Give up on other errors */ |
| |
| printf("usbserial_main: Aborting\n"); |
| return 2; |
| } |
| } |
| |
| /* If USB tracing is enabled, then dump all collected trace data to stdout */ |
| |
| dumptrace(); |
| } |
| while (outfd < 0); |
| #endif |
| |
| /* Open the USB serial device for reading (non-blocking) */ |
| |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY |
| infd = open(USBSER_DEVNAME, O_RDONLY|O_NONBLOCK); |
| if (infd < 0) |
| { |
| printf("usbserial_main: ERROR: Failed to open " USBSER_DEVNAME |
| " for reading: %d\n", errno); |
| close(outfd); |
| return 3; |
| } |
| #else |
| do |
| { |
| infd = open(USBSER_DEVNAME, O_RDONLY|O_NONBLOCK); |
| if (infd < 0) |
| { |
| int errcode = errno; |
| printf("usbserial_main: ERROR: Failed to open " USBSER_DEVNAME |
| " for reading: %d\n", errno); |
| |
| /* ENOTCONN means that the USB device is not yet connected */ |
| |
| if (errcode == ENOTCONN) |
| { |
| printf("usbserial_main: Not connected. Wait and try again.\n"); |
| sleep(5); |
| } |
| else |
| { |
| /* Give up on other errors */ |
| |
| printf("usbserial_main: Aborting\n"); |
| return 3; |
| } |
| } |
| |
| /* If USB tracing is enabled, then dump all collected trace data to stdout */ |
| |
| dumptrace(); |
| } |
| while (infd < 0); |
| #endif |
| #endif |
| |
| printf("usbserial_main: Successfully opened the serial driver\n"); |
| |
| /* Send messages and get responses -- forever */ |
| |
| for (;;) |
| { |
| /* Test IN (device-to-host) messages */ |
| |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY |
| #if !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYBIG) && !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL) |
| if (count < 8) |
| { |
| printf("usbserial_main: Saying hello\n"); |
| nbytes = write(outfd, g_shortmsg, sizeof(g_shortmsg)); |
| count++; |
| } |
| else |
| { |
| printf("usbserial_main: Reciting QEI's speech of 1588\n"); |
| nbytes = write(outfd, g_longmsg, sizeof(g_longmsg)); |
| count = 0; |
| } |
| |
| #elif !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL) |
| printf("usbserial_main: Reciting QEI's speech of 1588\n"); |
| nbytes = write(outfd, g_longmsg, sizeof(g_longmsg)); |
| |
| #else /* !defined(CONFIG_EXAMPLES_USBSERIAL_ONLYBIG) */ |
| printf("usbserial_main: Saying hello\n"); |
| nbytes = write(outfd, g_shortmsg, sizeof(g_shortmsg)); |
| #endif |
| |
| /* Test if the write was successful */ |
| |
| if (nbytes < 0) |
| { |
| printf("usbserial_main: ERROR: write failed: %d\n", errno); |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY |
| close(infd); |
| #endif |
| close(outfd); |
| return 4; |
| } |
| |
| printf("usbserial_main: %ld bytes sent\n", (long)nbytes); |
| #endif /* CONFIG_EXAMPLES_USBSERIAL_OUTONLY */ |
| |
| /* Test OUT (host-to-device) messages */ |
| |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY |
| /* Poll for incoming messages */ |
| |
| printf("usbserial_main: Polling for OUT messages\n"); |
| for (i = 0; i < 5; i++) |
| { |
| memset(g_iobuffer, 'X', CONFIG_EXAMPLES_USBSERIAL_BUFSIZE); |
| nbytes = read(infd, g_iobuffer, CONFIG_EXAMPLES_USBSERIAL_BUFSIZE); |
| if (nbytes < 0) |
| { |
| int errorcode = errno; |
| if (errorcode != EAGAIN) |
| { |
| printf("usbserial_main: ERROR: read failed: %d\n", errno); |
| close(infd); |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY |
| close(outfd); |
| #endif |
| return 6; |
| } |
| } |
| else |
| { |
| printf("usbserial_main: Received %ld bytes:\n", (long)nbytes); |
| if (nbytes > 0) |
| { |
| for (j = 0; j < nbytes; j += 16) |
| { |
| printf("usbserial_main: %03x: ", j); |
| for (k = 0; k < 16; k++) |
| { |
| if (k == 8) |
| { |
| printf(" "); |
| } |
| |
| if (j+k < nbytes) |
| { |
| printf("%02x", g_iobuffer[j+k]); |
| } |
| else |
| { |
| printf(" "); |
| } |
| } |
| |
| printf(" "); |
| for (k = 0; k < 16; k++) |
| { |
| if (k == 8) |
| { |
| printf(" "); |
| } |
| |
| if (j+k < nbytes) |
| { |
| if (g_iobuffer[j+k] >= 0x20 && g_iobuffer[j+k] < 0x7f) |
| { |
| printf("%c", g_iobuffer[j+k]); |
| } |
| else |
| { |
| printf("."); |
| } |
| } |
| else |
| { |
| printf(" "); |
| } |
| } |
| |
| printf("\n"); |
| } |
| } |
| } |
| |
| sleep(1); |
| } |
| |
| #else /* CONFIG_EXAMPLES_USBSERIAL_INONLY */ |
| printf("usbserial_main: Waiting\n"); |
| sleep(5); |
| #endif /* CONFIG_EXAMPLES_USBSERIAL_INONLY */ |
| |
| /* If USB tracing is enabled, then dump all collected trace data to stdout */ |
| |
| dumptrace(); |
| } |
| |
| /* Won't get here, but if we did this what we would have to do */ |
| |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_INONLY |
| close(infd); |
| #endif |
| #ifndef CONFIG_EXAMPLES_USBSERIAL_OUTONLY |
| close(outfd); |
| #endif |
| return 0; |
| } |
