Imported Upstream version 2.4.3

2010-03-26 00:20:59 +01:00 · 2010-03-26 00:20:59 +01:00 · 26fb71b504
commit 26fb71b504
446 changed files with 148951 additions and 0 deletions
--- a/drivers/blazer_ser.c
+++ b/drivers/blazer_ser.c
@ -0,0 +1,200 @@
+/*
+ * blazer_ser.c: support for Megatec/Q1 serial protocol based UPSes
+ *
+ * A document describing the protocol implemented by this driver can be
+ * found online at "http://www.networkupstools.org/protocols/megatec.html".
+ *
+ * Copyright (C) 2008 - Arjen de Korte <adkorte-guest@alioth.debian.org>
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "main.h"
+#include "serial.h"
+#include "blazer.h"
+
+#define DRIVER_NAME	"Megatec/Q1 protocol serial driver"
+#define DRIVER_VERSION	"1.51"
+
+/* driver description structure */
+upsdrv_info_t upsdrv_info = {
+	DRIVER_NAME,
+	DRIVER_VERSION,
+	"Arjen de Korte <adkorte-guest@alioth.debian.org>",
+	DRV_BETA,
+	{ NULL }
+};
+
+#define SER_WAIT_SEC	1
+
+/*
+ * Generic command processing function. Send a command and read a reply.
+ * Returns < 0 on error, 0 on timeout and the number of bytes read on
+ * success.
+ */
+int blazer_command(const char *cmd, char *buf, size_t buflen)
+{
+#ifndef TESTING
+	int	ret;
+
+	ser_flush_io(upsfd);
+
+	ret = ser_send(upsfd, "%s", cmd);
+
+	if (ret <= 0) {
+		upsdebugx(3, "send: %s", ret ? strerror(errno) : "timeout");
+		return ret;
+	}
+
+	upsdebugx(3, "send: %.*s", (int)strcspn(cmd, "\r"), cmd);
+
+	ret = ser_get_buf(upsfd, buf, buflen, SER_WAIT_SEC, 0);
+
+	if (ret <= 0) {
+		upsdebugx(3, "read: %s", ret ? strerror(errno) : "timeout");
+		return ret;
+	}
+
+	upsdebugx(3, "read: %.*s", (int)strcspn(buf, "\r"), buf);
+	return ret;
+#else
+	const struct {
+		const char	*cmd;
+		const char	*answer;
+	} testing[] = {
+		{ "Q1\r", "(215.0 195.0 230.0 014 49.0 2.27 30.0 00101000\r" },
+		{ "F\r",  "#230.0 000 024.0 50.0\r" },
+		{ "I\r",  "#NOT_A_LIVE_UPS  TESTING    TESTING   \r" },
+		{ NULL }
+	};
+
+	int	i;
+
+	memset(buf, 0, buflen);
+
+	for (i = 0; cmd && testing[i].cmd; i++) {
+
+		if (strcasecmp(cmd, testing[i].cmd)) {
+			continue;
+		}
+
+		return snprintf(buf, buflen, "%s", testing[i].answer);
+	}
+
+	return snprintf(buf, buflen, "%s", testing[i].cmd);
+#endif
+}
+
+
+void upsdrv_help(void)
+{
+	printf("Read The Fine Manual ('man 8 blazer')\n");
+}
+
+
+void upsdrv_makevartable(void)
+{
+	addvar(VAR_VALUE, "cablepower", "Set cable power for serial interface");
+
+	blazer_makevartable();
+}
+
+
+void upsdrv_initups(void)
+{
+	const struct {
+		const char	*val;
+		const int	dtr;
+		const int	rts;
+	} cablepower[] = {
+		{ "normal",	1, 0 }, /* default */
+		{ "reverse",	0, 1 },
+		{ "both",	1, 1 },
+		{ "none",	0, 0 },
+		{ NULL }
+	};
+
+	int	i;
+
+	const char	*val;
+#ifndef TESTING
+	struct termios		tio;
+
+	/*
+	 * Open and lock the serial port and set the speed to 2400 baud.
+	 */
+	upsfd = ser_open(device_path);
+	ser_set_speed(upsfd, device_path, B2400);
+
+	if (tcgetattr(upsfd, &tio)) {
+		fatal_with_errno(EXIT_FAILURE, "tcgetattr");
+	}
+
+	/*
+	 * Use canonical mode input processing (to read reply line)
+	 */
+	tio.c_lflag |= ICANON;	/* Canonical input (erase and kill processing) */
+
+	tio.c_cc[VEOF]   = _POSIX_VDISABLE;
+	tio.c_cc[VEOL]   = '\r';
+	tio.c_cc[VERASE] = _POSIX_VDISABLE;
+	tio.c_cc[VINTR]  = _POSIX_VDISABLE;
+	tio.c_cc[VKILL]  = _POSIX_VDISABLE;
+	tio.c_cc[VQUIT]  = _POSIX_VDISABLE;
+	tio.c_cc[VSUSP]  = _POSIX_VDISABLE;
+	tio.c_cc[VSTART] = _POSIX_VDISABLE;
+	tio.c_cc[VSTOP]  = _POSIX_VDISABLE;
+
+	if (tcsetattr(upsfd, TCSANOW, &tio)) {
+		fatal_with_errno(EXIT_FAILURE, "tcsetattr");
+	}
+
+	val = getval("cablepower");
+	for (i = 0; val && cablepower[i].val; i++) {
+
+		if (!strcasecmp(val, cablepower[i].val)) {
+			break;
+		}
+	}
+
+	if (!cablepower[i].val) {
+		fatalx(EXIT_FAILURE, "Value '%s' not valid for 'cablepower'", val);
+	}
+
+	ser_set_dtr(upsfd, cablepower[i].dtr);
+	ser_set_rts(upsfd, cablepower[i].rts);
+
+	/*
+	 * Allow some time to settle for the cablepower
+	 */
+	usleep(100000);
+#endif
+	blazer_initups();
+}
+
+
+void upsdrv_initinfo(void)
+{
+	blazer_initinfo();
+}
+
+
+void upsdrv_cleanup(void)
+{
+#ifndef TESTING
+	ser_set_dtr(upsfd, 0);
+	ser_close(upsfd, device_path);
+#endif
+}