FreeCalypso > hg > fc-tourmaline
diff src/cs/system/main/init.c @ 280:82665effff30
keypad boot init overhaul: handle initially held-down keys
This change fixes two previous behavioural defects:
1) On Compal phones, the PWR key had to be released before the boot
sequence would proceed at all - it was stuck in an endless IRQ loop
at the point of Nucleus enabling interrupts, before anything else.
2) On both Compal and sane platforms including Luna, if some regular
non-PWR key was held down at boot time, the boot sequence would
proceed and complete normally, but all non-PWR keypad buttons would
be dead for the remainder of that boot cycle.
The fix is a generic solution - no Compal-specific hack ended up being
needed for the special case of their idiotic PWON-to-ROW4 hw wiring.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Fri, 24 Sep 2021 00:47:12 +0000 |
| parents | 4e78acac3d88 |
| children |
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--- a/src/cs/system/main/init.c Thu Sep 23 23:42:41 2021 +0000 +++ b/src/cs/system/main/init.c Fri Sep 24 00:47:12 2021 +0000 @@ -974,6 +974,19 @@ */ void Init_Unmask_IT (void) { + /* + * FreeCalypso change: we mask the keypad interrupt, + * counteracting IQ_ARMIO unmasking below, and leave it masked + * until KPD full initialization. + * + * This change is needed in order to handle user-expected initial + * hold-down of the PWR key on Compal phones, and it also helps us + * more gracefully handle the case of a user holding down some + * random non-PWR key on boot. + */ + AI_MaskIT(ARMIO_MASKIT_KBD); + + /* original code from TI */ IQ_Unmask(IQ_FRAME); IQ_Unmask(IQ_UART_IRDA_IT); IQ_Unmask(IQ_UART_IT);