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author | Jakob Odersky <jodersky@gmail.com> | 2015-12-08 21:44:31 -0800 |
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committer | Jakob Odersky <jodersky@gmail.com> | 2015-12-08 21:44:31 -0800 |
commit | eab2e148c7605ca0fd836bbe9230734895cce7d0 (patch) | |
tree | d7b2a00c2890830fd60a3ba811141ceb48a5d650 /flow-native/src/platform | |
parent | 230e840e09eda41f95bb813ff666fc58c663c095 (diff) | |
download | akka-serial-eab2e148c7605ca0fd836bbe9230734895cce7d0.tar.gz akka-serial-eab2e148c7605ca0fd836bbe9230734895cce7d0.tar.bz2 akka-serial-eab2e148c7605ca0fd836bbe9230734895cce7d0.zip |
Use sbt-jni plugin
Diffstat (limited to 'flow-native/src/platform')
-rw-r--r-- | flow-native/src/platform/posix/flow.c | 247 | ||||
-rw-r--r-- | flow-native/src/platform/windows/README | 1 | ||||
-rw-r--r-- | flow-native/src/platform/windows/flow.c.disabled | 416 |
3 files changed, 0 insertions, 664 deletions
diff --git a/flow-native/src/platform/posix/flow.c b/flow-native/src/platform/posix/flow.c deleted file mode 100644 index a2a239c..0000000 --- a/flow-native/src/platform/posix/flow.c +++ /dev/null @@ -1,247 +0,0 @@ -#include <stdlib.h> -#include <stdio.h> -#include <unistd.h> -#include <errno.h> -#include <termios.h> -#include <fcntl.h> -#include <sys/file.h> -#include "flow.h" - - -#define DATA_CANCEL 0xffffffff - -static bool debug = false; -#define DEBUG(f) if (debug) {f} - -void serial_debug(bool value) { - debug = value; -} - -//contains file descriptors used in managing a serial port -struct serial_config { - int port_fd; // file descriptor of serial port - - /* a pipe is used to abort a serial read by writing something into the - * write end of the pipe */ - int pipe_read_fd; // file descriptor, read end of pipe - int pipe_write_fd; // file descriptor, write end of pipe -}; - -int serial_open( - const char* const port_name, - int baud, - int char_size, - bool two_stop_bits, - int parity, - struct serial_config** serial) { - - int fd = open(port_name, O_RDWR | O_NOCTTY | O_NONBLOCK); - - if (fd < 0) { - int en = errno; - DEBUG(perror("error obtaining port file descriptor");); - if (en == EACCES) return E_ACCESS_DENIED; - if (en == ENOENT) return E_NO_PORT; - return E_IO; - } - - if (flock(fd, LOCK_EX | LOCK_NB) < 0) { - DEBUG(perror("error acquiring lock on port");); - close(fd); - return E_BUSY; - } - - /* configure new port settings */ - struct termios newtio; - - /* initialize serial interface */ - newtio.c_iflag = 0; - newtio.c_oflag = 0; - newtio.c_lflag = 0; - newtio.c_cflag = CREAD; - - /* set speed */ - speed_t bd; - switch (baud) { - case 50: bd = B50; break; - case 75: bd = B75; break; - case 110: bd = B110; break; - case 134: bd = B134; break; - case 150: bd = B150; break; - case 200: bd = B200; break; - case 300: bd = B300; break; - case 600: bd = B600; break; - case 1200: bd = B1200; break; - case 1800: bd = B1800; break; - case 2400: bd = B2400; break; - case 4800: bd = B4800; break; - case 9600: bd = B9600; break; - case 19200: bd = B19200; break; - case 38400: bd = B38400; break; - case 57600: bd = B57600; break; - case 115200: bd = B115200; break; - case 230400: bd = B230400; break; - default: - close(fd); - DEBUG(fprintf(stderr, "invalid baud rate %d\n", baud);); - return E_INVALID_SETTINGS; - } - - if (cfsetspeed(&newtio, bd) < 0) { - DEBUG(perror("error setting baud rate");); - close(fd); - return E_IO; - } - - /* set char size*/ - switch (char_size) { - case 5: newtio.c_cflag |= CS5; break; - case 6: newtio.c_cflag |= CS6; break; - case 7: newtio.c_cflag |= CS7; break; - case 8: newtio.c_cflag |= CS8; break; - default: - close(fd); - DEBUG(fprintf(stderr, "invalid character size %d\n", char_size);); - return E_INVALID_SETTINGS; - } - - /* use two stop bits */ - if (two_stop_bits){ - newtio.c_cflag |= CSTOPB; - } - - /* set parity */ - switch (parity) { - case PARITY_NONE: break; - case PARITY_ODD: newtio.c_cflag |= (PARENB | PARODD); break; - case PARITY_EVEN: newtio.c_cflag |= PARENB; break; - default: - close(fd); - DEBUG(fprintf(stderr, "invalid parity %d\n", parity);); - return E_INVALID_SETTINGS; - } - - if (tcflush(fd, TCIOFLUSH) < 0) { - DEBUG(perror("error flushing serial settings");); - close(fd); - return E_IO; - } - - if (tcsetattr(fd, TCSANOW, &newtio) < 0) { - DEBUG(perror("error applying serial settings");); - close(fd); - return E_IO; - } - - int pipe_fd[2]; - if (pipe(pipe_fd) < 0) { - DEBUG(perror("error opening pipe");); - close(fd); - return E_IO; - } - - if (fcntl(pipe_fd[0], F_SETFL, O_NONBLOCK) < 0 || fcntl(pipe_fd[1], F_SETFL, O_NONBLOCK) < 0) { - DEBUG(perror("error setting pipe to non-blocking");); - close(fd); - close(pipe_fd[0]); - close(pipe_fd[1]); - return E_IO; - } - - struct serial_config* s = malloc(sizeof(s)); - if (s == NULL) { - DEBUG(perror("error allocating memory for serial configuration");); - close(fd); - close(pipe_fd[0]); - close(pipe_fd[1]); - return E_IO; - } - - s->port_fd = fd; - s->pipe_read_fd = pipe_fd[0]; - s->pipe_write_fd = pipe_fd[1]; - (*serial) = s; - - return 0; -} - - -int serial_close(struct serial_config* const serial) { - if (close(serial->pipe_write_fd) < 0) { - DEBUG(perror("error closing write end of pipe");); - return E_IO; - } - if (close(serial->pipe_read_fd) < 0) { - DEBUG(perror("error closing read end of pipe");); - return E_IO; - } - - if (flock(serial->port_fd, LOCK_UN) < 0){ - DEBUG(perror("error releasing lock on port");); - return E_IO; - } - if (close(serial->port_fd) < 0) { - DEBUG(perror("error closing port");); - return E_IO; - } - - free(serial); - return 0; -} - -int serial_read(struct serial_config* const serial, char* const buffer, size_t size) { - int port = serial->port_fd; - int pipe = serial->pipe_read_fd; - - fd_set rfds; - FD_ZERO(&rfds); - FD_SET(port, &rfds); - FD_SET(pipe, &rfds); - - int nfds = pipe + 1; - if (pipe < port) nfds = port + 1; - - int n = select(nfds, &rfds, NULL, NULL, NULL); - if (n < 0) { - DEBUG(perror("error trying to call select on port and pipe");); - return E_IO; - } - - if (FD_ISSET(pipe, &rfds)) { - return E_INTERRUPT; - } else if (FD_ISSET(port, &rfds)) { - int r = read(port, buffer, size); - - //treat 0 bytes read as an error to avoid problems on disconnect - //anyway, after a poll there should be more than 0 bytes available to read - if (r <= 0) { - DEBUG(perror("error data not available after select");); - return E_IO; - } - return r; - } else { - fprintf(stderr, "select returned unknown read sets\n"); - return E_IO; - } -} - -int serial_cancel_read(struct serial_config* const serial) { - int data = DATA_CANCEL; - - //write to pipe to wake up any blocked read thread (self-pipe trick) - if (write(serial->pipe_write_fd, &data, 1) < 0) { - DEBUG(perror("error writing to pipe during read cancel");); - return E_IO; - } - - return 0; -} - -int serial_write(struct serial_config* const serial, char* const data, size_t size) { - int r = write(serial->port_fd, data, size); - if (r < 0) { - DEBUG(perror("error writing to port");); - return E_IO; - } - return r; -}
\ No newline at end of file diff --git a/flow-native/src/platform/windows/README b/flow-native/src/platform/windows/README deleted file mode 100644 index 3d24410..0000000 --- a/flow-native/src/platform/windows/README +++ /dev/null @@ -1 +0,0 @@ -The contents of the file flow.c were found in the avrdude project. They look like they may be a good starting point for serial communication on windows. diff --git a/flow-native/src/platform/windows/flow.c.disabled b/flow-native/src/platform/windows/flow.c.disabled deleted file mode 100644 index 86a267c..0000000 --- a/flow-native/src/platform/windows/flow.c.disabled +++ /dev/null @@ -1,416 +0,0 @@ -/* - * avrdude - A Downloader/Uploader for AVR device programmers - * Copyright (C) 2003, 2004 Martin J. Thomas <mthomas@rhrk.uni-kl.de> - * Copyright (C) 2006 Joerg Wunsch <j@uriah.heep.sax.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -/* $Id$ */ - -/* - * Native Win32 serial interface for avrdude. - */ - -#include "avrdude.h" - -#if defined(WIN32NATIVE) - -#include <windows.h> -#include <stdio.h> -#include <ctype.h> /* for isprint */ - -#include "serial.h" - -long serial_recv_timeout = 5000; /* ms */ - -#define W32SERBUFSIZE 1024 - -struct baud_mapping { - long baud; - DWORD speed; -}; - -/* HANDLE hComPort=INVALID_HANDLE_VALUE; */ - -static struct baud_mapping baud_lookup_table [] = { - { 1200, CBR_1200 }, - { 2400, CBR_2400 }, - { 4800, CBR_4800 }, - { 9600, CBR_9600 }, - { 19200, CBR_19200 }, - { 38400, CBR_38400 }, - { 57600, CBR_57600 }, - { 115200, CBR_115200 }, - { 0, 0 } /* Terminator. */ -}; - -static DWORD serial_baud_lookup(long baud) -{ - struct baud_mapping *map = baud_lookup_table; - - while (map->baud) { - if (map->baud == baud) - return map->speed; - map++; - } - - /* - * If a non-standard BAUD rate is used, issue - * a warning (if we are verbose) and return the raw rate - */ - if (verbose > 0) - fprintf(stderr, "%s: serial_baud_lookup(): Using non-standard baud rate: %ld", - progname, baud); - - return baud; -} - - -static BOOL serial_w32SetTimeOut(HANDLE hComPort, DWORD timeout) // in ms -{ - COMMTIMEOUTS ctmo; - ZeroMemory (&ctmo, sizeof(COMMTIMEOUTS)); - ctmo.ReadIntervalTimeout = timeout; - ctmo.ReadTotalTimeoutMultiplier = timeout; - ctmo.ReadTotalTimeoutConstant = timeout; - - return SetCommTimeouts(hComPort, &ctmo); -} - -static int ser_setspeed(union filedescriptor *fd, long baud) -{ - DCB dcb; - HANDLE hComPort = (HANDLE)fd->pfd; - - ZeroMemory (&dcb, sizeof(DCB)); - dcb.DCBlength = sizeof(DCB); - dcb.BaudRate = serial_baud_lookup (baud); - dcb.fBinary = 1; - dcb.fDtrControl = DTR_CONTROL_DISABLE; - dcb.fRtsControl = RTS_CONTROL_DISABLE; - dcb.ByteSize = 8; - dcb.Parity = NOPARITY; - dcb.StopBits = ONESTOPBIT; - - if (!SetCommState(hComPort, &dcb)) - return -1; - - return 0; -} - - -static int ser_open(char * port, long baud, union filedescriptor *fdp) -{ - LPVOID lpMsgBuf; - HANDLE hComPort=INVALID_HANDLE_VALUE; - char *newname = 0; - - /* - * If the port is of the form "net:<host>:<port>", then - * handle it as a TCP connection to a terminal server. - * - * This is curently not implemented for Win32. - */ - if (strncmp(port, "net:", strlen("net:")) == 0) { - fprintf(stderr, - "%s: ser_open(): network connects are currently not" - "implemented for Win32 environments\n", - progname); - return -1; - } - - if (strncasecmp(port, "com", strlen("com")) == 0) { - - // prepend "\\\\.\\" to name, required for port # >= 10 - newname = malloc(strlen("\\\\.\\") + strlen(port) + 1); - - if (newname == 0) { - fprintf(stderr, - "%s: ser_open(): out of memory\n", - progname); - exit(1); - } - strcpy(newname, "\\\\.\\"); - strcat(newname, port); - - port = newname; - } - - hComPort = CreateFile(port, GENERIC_READ | GENERIC_WRITE, 0, NULL, - OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); - - if (hComPort == INVALID_HANDLE_VALUE) { - FormatMessage( - FORMAT_MESSAGE_ALLOCATE_BUFFER | - FORMAT_MESSAGE_FROM_SYSTEM | - FORMAT_MESSAGE_IGNORE_INSERTS, - NULL, - GetLastError(), - MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language - (LPTSTR) &lpMsgBuf, - 0, - NULL); - fprintf(stderr, "%s: ser_open(): can't open device \"%s\": %s\n", - progname, port, (char*)lpMsgBuf); - LocalFree( lpMsgBuf ); - return -1; - } - - if (!SetupComm(hComPort, W32SERBUFSIZE, W32SERBUFSIZE)) - { - CloseHandle(hComPort); - fprintf(stderr, "%s: ser_open(): can't set buffers for \"%s\"\n", - progname, port); - return -1; - } - - fdp->pfd = (void *)hComPort; - if (ser_setspeed(fdp, baud) != 0) - { - CloseHandle(hComPort); - fprintf(stderr, "%s: ser_open(): can't set com-state for \"%s\"\n", - progname, port); - return -1; - } - - if (!serial_w32SetTimeOut(hComPort,0)) - { - CloseHandle(hComPort); - fprintf(stderr, "%s: ser_open(): can't set initial timeout for \"%s\"\n", - progname, port); - return -1; - } - - if (newname != 0) { - free(newname); - } - return 0; -} - - -static void ser_close(union filedescriptor *fd) -{ - HANDLE hComPort=(HANDLE)fd->pfd; - if (hComPort != INVALID_HANDLE_VALUE) - CloseHandle (hComPort); - - hComPort = INVALID_HANDLE_VALUE; -} - -static int ser_set_dtr_rts(union filedescriptor *fd, int is_on) -{ - HANDLE hComPort=(HANDLE)fd->pfd; - - if (is_on) { - EscapeCommFunction(hComPort, SETDTR); - EscapeCommFunction(hComPort, SETRTS); - } else { - EscapeCommFunction(hComPort, CLRDTR); - EscapeCommFunction(hComPort, CLRRTS); - } - return 0; -} - - -static int ser_send(union filedescriptor *fd, unsigned char * buf, size_t buflen) -{ - size_t len = buflen; - unsigned char c='\0'; - DWORD written; - unsigned char * b = buf; - - HANDLE hComPort=(HANDLE)fd->pfd; - - if (hComPort == INVALID_HANDLE_VALUE) { - fprintf(stderr, "%s: ser_send(): port not open\n", - progname); - exit(1); - } - - if (!len) - return 0; - - if (verbose > 3) - { - fprintf(stderr, "%s: Send: ", progname); - - while (len) { - c = *b; - if (isprint(c)) { - fprintf(stderr, "%c ", c); - } - else { - fprintf(stderr, ". "); - } - fprintf(stderr, "[%02x] ", c); - b++; - len--; - } - fprintf(stderr, "\n"); - } - - serial_w32SetTimeOut(hComPort,500); - - if (!WriteFile (hComPort, buf, buflen, &written, NULL)) { - fprintf(stderr, "%s: ser_send(): write error: %s\n", - progname, "sorry no info avail"); // TODO - exit(1); - } - - if (written != buflen) { - fprintf(stderr, "%s: ser_send(): size/send mismatch\n", - progname); - exit(1); - } - - return 0; -} - - -static int ser_recv(union filedescriptor *fd, unsigned char * buf, size_t buflen) -{ - unsigned char c; - unsigned char * p = buf; - DWORD read; - - HANDLE hComPort=(HANDLE)fd->pfd; - - if (hComPort == INVALID_HANDLE_VALUE) { - fprintf(stderr, "%s: ser_read(): port not open\n", - progname); - exit(1); - } - - serial_w32SetTimeOut(hComPort, serial_recv_timeout); - - if (!ReadFile(hComPort, buf, buflen, &read, NULL)) { - LPVOID lpMsgBuf; - FormatMessage( - FORMAT_MESSAGE_ALLOCATE_BUFFER | - FORMAT_MESSAGE_FROM_SYSTEM | - FORMAT_MESSAGE_IGNORE_INSERTS, - NULL, - GetLastError(), - MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language - (LPTSTR) &lpMsgBuf, - 0, - NULL ); - fprintf(stderr, "%s: ser_recv(): read error: %s\n", - progname, (char*)lpMsgBuf); - LocalFree( lpMsgBuf ); - exit(1); - } - - /* time out detected */ - if (read == 0) { - if (verbose > 1) - fprintf(stderr, - "%s: ser_recv(): programmer is not responding\n", - progname); - return -1; - } - - p = buf; - - if (verbose > 3) - { - fprintf(stderr, "%s: Recv: ", progname); - - while (read) { - c = *p; - if (isprint(c)) { - fprintf(stderr, "%c ", c); - } - else { - fprintf(stderr, ". "); - } - fprintf(stderr, "[%02x] ", c); - - p++; - read--; - } - fprintf(stderr, "\n"); - } - return 0; -} - - -static int ser_drain(union filedescriptor *fd, int display) -{ - // int rc; - unsigned char buf[10]; - BOOL readres; - DWORD read; - - HANDLE hComPort=(HANDLE)fd->pfd; - - if (hComPort == INVALID_HANDLE_VALUE) { - fprintf(stderr, "%s: ser_drain(): port not open\n", - progname); - exit(1); - } - - serial_w32SetTimeOut(hComPort,250); - - if (display) { - fprintf(stderr, "drain>"); - } - - while (1) { - readres=ReadFile(hComPort, buf, 1, &read, NULL); - if (!readres) { - LPVOID lpMsgBuf; - FormatMessage( - FORMAT_MESSAGE_ALLOCATE_BUFFER | - FORMAT_MESSAGE_FROM_SYSTEM | - FORMAT_MESSAGE_IGNORE_INSERTS, - NULL, - GetLastError(), - MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language - (LPTSTR) &lpMsgBuf, - 0, - NULL ); - fprintf(stderr, "%s: ser_drain(): read error: %s\n", - progname, (char*)lpMsgBuf); - LocalFree( lpMsgBuf ); - exit(1); - } - - if (read) { // data avail - if (display) fprintf(stderr, "%02x ", buf[0]); - } - else { // no more data - if (display) fprintf(stderr, "<drain\n"); - break; - } - } // while - return 0; -} - -struct serial_device serial_serdev = -{ - .open = ser_open, - .setspeed = ser_setspeed, - .close = ser_close, - .send = ser_send, - .recv = ser_recv, - .drain = ser_drain, - .set_dtr_rts = ser_set_dtr_rts, - .flags = SERDEV_FL_CANSETSPEED, -}; - -struct serial_device *serdev = &serial_serdev; - -#endif /* WIN32NATIVE */ |