FreeCalypso > hg > fc-tourmaline
comparison 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> |
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date | Fri, 24 Sep 2021 00:47:12 +0000 |
parents | 4e78acac3d88 |
children |
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279:4dd30fac5933 | 280:82665effff30 |
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972 * | 972 * |
973 * Unmask all used interrupts. | 973 * Unmask all used interrupts. |
974 */ | 974 */ |
975 void Init_Unmask_IT (void) | 975 void Init_Unmask_IT (void) |
976 { | 976 { |
977 /* | |
978 * FreeCalypso change: we mask the keypad interrupt, | |
979 * counteracting IQ_ARMIO unmasking below, and leave it masked | |
980 * until KPD full initialization. | |
981 * | |
982 * This change is needed in order to handle user-expected initial | |
983 * hold-down of the PWR key on Compal phones, and it also helps us | |
984 * more gracefully handle the case of a user holding down some | |
985 * random non-PWR key on boot. | |
986 */ | |
987 AI_MaskIT(ARMIO_MASKIT_KBD); | |
988 | |
989 /* original code from TI */ | |
977 IQ_Unmask(IQ_FRAME); | 990 IQ_Unmask(IQ_FRAME); |
978 IQ_Unmask(IQ_UART_IRDA_IT); | 991 IQ_Unmask(IQ_UART_IRDA_IT); |
979 IQ_Unmask(IQ_UART_IT); | 992 IQ_Unmask(IQ_UART_IT); |
980 IQ_Unmask(IQ_ARMIO); | 993 IQ_Unmask(IQ_ARMIO); |
981 #if (L1_DYN_DSP_DWNLD == 1) | 994 #if (L1_DYN_DSP_DWNLD == 1) |