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Add CmdBwmAutoOff command for auto power-off toggle

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Signed-off-by: Niel Nielsen <nieldk@gmail.com>
This commit is contained in:
Niel Nielsen
2026-08-25 12:43:53 +02:00
committed by Philippe Teuwen
parent 75f723647d
commit 83ff027bb2
1 changed files with 48 additions and 0 deletions
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client/src/cmdhw.c
+48
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@@ -1500,6 +1500,53 @@ static int CmdTearoff(const char *Cmd) {
return handle_tearoff(&params, !silent);
}
static int CmdBwmAutoOff(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hw bwmautooff",
"Toggle automatic power-off when the PM5 is unplugged from USB (BWM only).\n"
"Default is " _GREEN_("on") ". When on, the board powers itself down ~10s after\n"
"USB is removed, so a BWM-equipped PM5 doesn't silently drain the battery.\n"
"Button power-on is unaffected. Disable for standalone/BLE use on battery.\n"
_YELLOW_("Runtime only:") " resets to on at each boot.",
"hw bwmautooff --off --> disable auto power-off\n"
"hw bwmautooff --on --> re-enable auto power-off");
void *argtable[] = {
arg_param_begin,
arg_lit0(NULL, "on", "enable auto power-off (default)"),
arg_lit0(NULL, "off", "disable auto power-off"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, true);
bool on = arg_get_lit(ctx, 1);
bool off = arg_get_lit(ctx, 2);
CLIParserFree(ctx);
if (on && off) {
PrintAndLogEx(WARNING, "pick one of --on / --off");
return PM3_EINVARG;
}
uint8_t payload = off ? 0 : 1; // default (neither flag) = enable
clearCommandBuffer();
SendCommandNG(CMD_PM5_BWM_AUTOOFF, &payload, sizeof(payload));
PacketResponseNG resp;
if (WaitForResponseTimeout(CMD_PM5_BWM_AUTOOFF, &resp, 2500) == false) {
PrintAndLogEx(WARNING, "command timeout (is this a PM5?)");
return PM3_ETIMEOUT;
}
if (resp.status == PM3_ENOTIMPL) {
PrintAndLogEx(WARNING, "firmware built without auto power-off support");
return resp.status;
}
if (resp.status != PM3_SUCCESS) {
PrintAndLogEx(FAILED, "failed to set auto power-off");
return resp.status;
}
PrintAndLogEx(SUCCESS, "Auto power-off %s.", payload ? _GREEN_("enabled") : _YELLOW_("disabled"));
return PM3_SUCCESS;
}
static int CmdBwmCharge(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "hw bwmcharge",
@@ -2062,6 +2109,7 @@ static command_t CommandTable[] = {
{"tia", CmdTia, IfPm3Present, "Trigger a Timing Interval Acquisition to re-adjust the RealTimeCounter divider"},
{"bwmsetcap", CmdBwmSetCap, IfPm5, "Set BWM fuel-gauge design capacity (PM5, run once after battery change)"},
{"bwmcharge", CmdBwmCharge, IfPm5, "Enable/disable BWM battery charging (PM5, one-shot)"},
{"bwmautooff", CmdBwmAutoOff, IfPm5, "Toggle auto power-off on USB unplug (PM5, BWM)"},
{"tune", CmdTune, IfPm3Lf, "Measure tuning of device antenna"},
{"decay", CmdDecay, IfPm3Present, "Measure HF antenna decay after field-off"},
{NULL, NULL, NULL, NULL}