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/* hp.c - support for HP Powertrust UPS
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Copyright (C) 2002 Richard Muratti <rick@ccoz.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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I have two HP Powertrust units
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A2997A 1800VA Rack Mount
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A2941A 600VA Floor Standing
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Here's what i have discovered about these units.
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+--------+-----+------+------+
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|Cables | UPS | DB25 | DB9* |
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|--------+-----+------+------+
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|Receive | 1 | 3 | 3 |
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|Transmit| 2 | 2 | 2 |
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|--------+-----+------+------+
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*) Cable used for A2994A; RX and TX appear to be exchanged
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Online Offline Comment
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A $ ! Status % Low Batt
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B 066.7 066.7 Battery Voltage
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F 050.0 050.0 Frequency
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K > < KnnnKnnn Kill UPS after nnn seconds (ie dont restart)
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L 233.0 000.0 Line Voltage
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N NM NM [CR] gives CM response
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O 231.0 231.0 Output Voltage
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P ddd.d ddd.d unsupported/future values
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R ddd.d ddd.d unsupported/future values
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S < > SnnnSnnn Shutdown UPS after nnn is seconds
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U > > Self test 10 Sec
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V 1.00 1.00 Firmware Version
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W HP^... HP^... ID String + Capablilities
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Z > < ZnnnZnnn does something but what???
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On power up UPS will send '('
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On power good UPS will send '$' ie after going off batt
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On power fail UPS will send '!'
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On low batt UPS will send '%'
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It seems that they are sent only once
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so its best to poll for them using 'A'
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Shutdown/kill only work if UPS is on battery.
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To force set UPS in test mode 'U' then issue
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UPS sends ')' on successful shutdown
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What do P & R values represent.
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What does ZnnnZnnn do.
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if you can add to the above please feel fee to do so
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but email me with any changes.
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#include <sys/ioctl.h>
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#define IGNCHARS "\n"
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#define NUM_MODELS sizeof(modeltab)/sizeof(modeltab[0])
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/* used external variables */
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extern int debug_level; /* debug level, set by "-D" in main.c */
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extern int sddelay; /* shutdown delay, set by "-d $delay" in main.c */
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extern int do_forceshutdown; /* shutdown delay, set by "-k" in main.c */
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{ "A2997A","HP^V230^F50^R01800^O230^P1"},
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{ "A2941A","HP^V230^F50^R00600^O230^P1"},
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{ "A2994A","HP^V230^F50^R01300^O230^P1"}
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Some Models may have more than one id string
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ie 110 volt countries
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/* TODO: roll this into upscommon ala bestups */
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void sendstring(char * string, int len, int delay)
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for (i=0; (i<len); i++) {
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upssendchar(string[i]);
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void instcmd (int auxcmd, int dlen, char *data)
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/* TODO: reply to upsd? */
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case CMD_BTEST0: /* Stop Battery Test*/
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case CMD_BTEST1: /* Start Battery Test*/
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upslogx(LOG_INFO,"instcmd: unknown or unimplemented type 0x%04x\n",auxcmd);
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upsh.instcmd = instcmd;
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void init_serial(void)
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int clr_bit = TIOCM_DTR | TIOCM_RTS;
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ioctl(upsfd, TIOCMBIC, &clr_bit);
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/* replacement for the old "installinfo" hack-job */
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static void poll_data(const char *var, char reqchar)
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upssendchar(reqchar);
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upsrecv(tmp, sizeof(tmp), ENDCHAR, IGNCHARS);
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dstate_setinfo(var, "%s", tmp);
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void ups_model (void)
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/* Get Ident String */
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poll_data("ups.id", 'W');
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/* Lookup UPS Model */
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for (i=0; i < NUM_MODELS;i++) {
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if (strncmp (dstate_getinfo("ups.id"),modeltab[i].id_string,strlen(modeltab[i].id_string)) == 0)
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dstate_setinfo("ups.model", "%s", modeltab[i].model);
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void upsdrv_initinfo(void)
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dstate_setinfo("ups.mfr", "HP");
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dstate_addcmd("battery.test.start");
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dstate_addcmd("battery.test.stop");
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printf("Detected %s [%s] on %s\n", dstate_getinfo("ups.mfr"),
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dstate_getinfo("ups.model"), device_path);
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void upsdrv_updateinfo(void)
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unsigned char recBuf[10];
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poll_data("input.voltage", 'L');
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poll_data("output.voltage", 'O');
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poll_data("input.frequency", 'F');
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poll_data("ups.temperature", 'C');
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poll_data("battery.voltage", 'B');
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upsrecv((char *)recBuf,sizeof(recBuf)-1,ENDCHAR,IGNCHARS);
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case '%': /* on battery, low battery */
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case '!': /* on battery */
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case '$': /* on line */
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upslogx(LOG_INFO,"unknown UPS status byte 0x%04x\n",
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return; /* don't commit */
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void upsdrv_shutdown(void)
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/* Put UPS in Self Test Mode */
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/* Issue Shutdown/Kill Command */
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if (sdtype == SD_RESTART) {
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printf("UPS shutdown in '%d' seconds.\nUPS will RESTART on AC Power Good\n", sddelay);
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snprintf (tmp, sizeof(tmp), "S%03dS%03d",sddelay,sddelay);
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printf("UPS shutdown in '%d' seconds.\nUPS will NOT RESTART on AC Power Good\n", sddelay);
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snprintf (tmp, sizeof(tmp), "K%03dK%03d",sddelay,sddelay);
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sendstring (tmp,9,10);
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void upsdrv_help(void)
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printf("\nShutdown types:\n");
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printf(" restart: UPS Will shutdown and will RESTART on AC Power Good (default)\n");
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printf(" halt: UPS Will shutdown and will NOT RESTART on AC Power Good\n");
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/* list flags and values that you want to receive via -x */
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void upsdrv_makevartable(void)
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/* allow '-x xyzzy' */
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/* addvar(VAR_FLAG, "xyzzy", "Enable xyzzy mode"); */
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/* allow '-x foo=<some value>' */
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addvar(VAR_VALUE, "shutdown", "halt/<restart>");
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void upsdrv_banner(void)
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printf("Network UPS Tools - HP Powertrust UPS driver 0.01 (%s)\n", UPS_VERSION);
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void upsdrv_initups(void)
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/* this driver doesn't do sanity checks in upsdrv_updateinfo */
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open_serial (device_path,B1200);
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if (NULL == getval("shutdown"))
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if (strcmp (getval("shutdown"),"halt") == 0)
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void upsdrv_cleanup(void)
added
removed
drivers/hp.c
