FreeCalypso > hg > fc-magnetite
view src/cs/drivers/drv_app/kpd/kpd_task.c @ 680:ee3ac8c617cb
armio.c: set GPIO2 output high initially
On TI-canonical platforms GPIO2 is DCD modem control output. In TI's
original code the AI_InitIOConfig() function called from Init_Target()
would configure GPIO2 as an output and set the initial output value to
low, but then the init code in uartfax.c called from Init_Serial_Flows()
would immediately change it to high, corresponding to DCD not asserted.
The result is a momentary asserted-state glitch on the DCD output.
The present change eliminates this glitch, setting DCD output to
not-asserted initially like it should be.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 25 Jun 2020 03:17:43 +0000 |
| parents | 945cf7f506b2 |
| children |
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/** * @file kpd_task.c * * Coding of the main keypad function : kpd_core * This function loop in the process message function for waiting messages. * * @author Laurent Sollier (l-sollier@ti.com) * @version 0.1 */ /* * History: * * Date Author Modification * ---------------------------------------- * 10/10/2001 L Sollier Create * * * (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved */ #include "kpd/kpd_env.h" #include "kpd/kpd_i.h" #include "rv/rv_general.h" #include "rvf/rvf_api.h" #include "rvm/rvm_use_id_list.h" /* External declaration until Riviera 1.6 is available*/ extern T_RV_RET kpd_handle_msg(T_RV_HDR* msg_p); extern T_RV_RET kpd_handle_timer(UINT8 timer_num); /** * @name Functions implementation * */ /*@{*/ /** * function: kpd_core */ T_RV_RET kpd_core(void) { BOOLEAN error_occured = FALSE; T_RV_HDR* msg_p; UINT16 received_event; KPD_SEND_TRACE("KPD: Initialization", RV_TRACE_LEVEL_DEBUG_HIGH); /* loop to process messages */ while (error_occured == FALSE) { /* Wait for the necessary events. */ received_event = rvf_wait ( 0xffff,0); if (received_event & RVF_TASK_MBOX_0_EVT_MASK) { /* Read the message */ msg_p = (T_RV_HDR*) rvf_read_mbox( KPD_MAILBOX_USED); kpd_handle_msg(msg_p); } if (received_event & RVF_TIMER_0_EVT_MASK) { kpd_handle_timer(RVF_TIMER_0); } if (received_event & RVF_TIMER_1_EVT_MASK) { kpd_handle_timer(RVF_TIMER_1); } if (received_event & RVF_TIMER_2_EVT_MASK) { kpd_handle_timer(RVF_TIMER_2); } if (received_event & RVF_TIMER_3_EVT_MASK) { kpd_handle_timer(RVF_TIMER_3); } } return RV_OK; }
