--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/brewpanel/sockio.c Sat Nov 14 16:52:33 2015 +0100
@@ -0,0 +1,121 @@
+/*****************************************************************************
+ * Copyright (C) 2015
+ *
+ * Michiel Broek <mbroek at mbse dot eu>
+ *
+ * This file is part of the mbsePi-apps
+ *
+ * mbsePi-apps 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, or (at your option) any
+ * later version.
+ *
+ * mbsePi-apps 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 mbsePi-apps; see the file COPYING. If not, write to the Free
+ * Software Foundation, 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *****************************************************************************/
+
+#include "brewpanel.h"
+#include "slcd.h"
+#include "futil.h"
+#include "sockio.h"
+
+#ifdef HAVE_SDL_SDL_H
+
+#define SLCD_NULL 0x0000
+#define SLCD_CLEAR 0x0001
+#define SLCD_MCLEAR 0x1fff
+#define SLCD_HOME 0x0002
+#define SLCD_MHOME 0x1ffe
+#define SLCD_DGRAM 0x0080
+#define SLCD_MDGRAM 0x1f80
+#define SLCD_DATA 0x0200
+#define SLCD_MDATA 0x1e00
+#define SLCD_LEDS 0x0400
+#define SLCD_MLEDS 0x1c00
+#define SLCD_KEYS 0x0800
+#define SLCD_MKEYS 0x1800
+#define SLCD_MDEV 0xe000
+
+
+int sock = -1; /* Unix datagram socket */
+struct sockaddr_in servaddr; /* Server socket address */
+
+
+
+void socket_recv(void)
+{
+ uint16_t data;
+ struct sockaddr_in clntaddr;
+ socklen_t clntlen = sizeof(clntaddr);
+ ssize_t recv_len;
+ int fd, my_error;
+
+ recv_len = recvfrom(sock, &data, sizeof(uint16_t), MSG_DONTWAIT, (struct sockaddr *)&clntaddr, &clntlen);
+ if (recv_len == sizeof(uint16_t)) {
+ /*
+ * Get device from data
+ */
+ fd = data & SLCD_MDEV >> 13;
+ if (fd)
+ fprintf(stdout, "Device %d ", fd);
+ if ((data & SLCD_MCLEAR) == SLCD_CLEAR) {
+ slcdClear(fd);
+ } else if ((data & SLCD_MHOME) == SLCD_HOME) {
+ slcdHome(fd);
+ } else if ((data & SLCD_MDGRAM) == SLCD_DGRAM) {
+ fprintf(stdout, "slcdPosition(%d, %d, %d)\n", fd, data & 0x001f, (data & 0x0060) >> 5);
+ slcdPosition(fd, data & 0x001f, (data & 0x0060) >> 5);
+ } else if ((data & 0xfe00) == SLCD_DATA) {
+ slcdPutchar(fd, data & 0x00ff);
+ } else {
+ fprintf(stdout, "socket_recv got %04x\n", data);
+ }
+ } else if (recv_len < 0) {
+ my_error = errno;
+ if (my_error != EAGAIN) {
+ fprintf(stdout, "socket_recv error: %s", strerror(my_error));
+ }
+ } else {
+ fprintf(stdout, "socket_recv unknown len=%d\n", (int)recv_len);
+ }
+}
+
+
+
+int socket_connect(void)
+{
+ int s;
+
+ s = socket(AF_INET, SOCK_DGRAM, 0);
+ if (s == -1) {
+ syslog(LOG_NOTICE, "socket_connect() can't create: %s", strerror(errno));
+ return -1;
+ }
+
+ /*
+ * Setup address structure for the server socket.
+ */
+ memset(&servaddr, 0, sizeof(servaddr));
+ servaddr.sin_family = AF_INET;
+ servaddr.sin_port = htons(6554);
+ servaddr.sin_addr.s_addr = inet_addr("127.0.0.1");
+
+ if (bind(s, (struct sockaddr *)&servaddr, sizeof(servaddr)) < 0) {
+ close(s);
+ syslog(LOG_NOTICE, "socket_connect() can't bind socket: %s", strerror(errno));
+ return -1;
+ }
+
+ syslog(LOG_NOTICE, "socket_connect() using socket %d", s);
+ sock = s;
+ return sock;
+}
+
+
+#endif