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| author | Moritz Fischer <moritz.fischer@ettus.com> | 2015-09-08 15:54:35 -0700 |
|---|---|---|
| committer | Moritz Fischer <moritz.fischer@ettus.com> | 2016-01-26 18:19:07 +0100 |
| commit | 9b8fdb018289219b46974d7a376acb043e1f99c0 (patch) | |
| tree | 8505ae7aa179a19d88590446333310bb0b48ae0d /firmware/e300/battery/pmu.c | |
| parent | 106405aace27889a4012a918846432d8f70df37b (diff) | |
| download | uhd-9b8fdb018289219b46974d7a376acb043e1f99c0.tar.gz uhd-9b8fdb018289219b46974d7a376acb043e1f99c0.tar.bz2 uhd-9b8fdb018289219b46974d7a376acb043e1f99c0.zip | |
firmware: e3xx: Add panic button functionality.
Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>
Diffstat (limited to 'firmware/e300/battery/pmu.c')
| -rw-r--r-- | firmware/e300/battery/pmu.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/firmware/e300/battery/pmu.c b/firmware/e300/battery/pmu.c index afd5036fa..59ba171a3 100644 --- a/firmware/e300/battery/pmu.c +++ b/firmware/e300/battery/pmu.c @@ -58,11 +58,14 @@ static io_pin_t AVR_IRQ = IO_PD(5); static io_pin_t PS_POR = IO_PD(6); static io_pin_t PS_SRST = IO_PD(7); static io_pin_t OVERTEMP = IO_PC(2); +static io_pin_t PANICn = IO_PC(1); static uint16_t last_full_charge; static uint16_t charge_on_last_unplug; static bool battery_present_last; +static bool panic_last; + static const uint8_t PMU_BLINK_ERROR_DELAY_MS = 250; static const uint8_t PMU_BLINK_ERROR_TICKS_PER_BLINK = 10; @@ -224,6 +227,10 @@ int8_t pmu_init(void) state = OFF; + /* make panic button an input */ + io_input_pin(PANICn); + panic_last = io_test_pin(PANICn); + /* make the LED outputs */ io_output_pin(CHARGE); io_output_pin(POWER_LED); @@ -525,6 +532,7 @@ void pmu_handle_events(void) bool is_charging = false; bool is_full = false; bool overtemp = io_test_pin(OVERTEMP); + bool panic = io_test_pin(PANICn); /* check if someone plugged the battery late, * if so init gauge */ @@ -537,6 +545,10 @@ void pmu_handle_events(void) } battery_present_last = battery_present; + if (panic != panic_last) + pmu_power_down(); + panic_last = panic; + if (overtemp) { fpga_set_gauge_status(BIT(6)); pmu_error = PMU_ERROR_GLOBAL_TEMP; |