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129 lines
3.2 KiB
129 lines
3.2 KiB
//
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// Created by MightyPork on 2017/12/15.
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//
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#include "sched_queue.h"
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#include "framework/settings.h"
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#include "framework/resources.h"
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#include "framework/system_settings.h"
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#include "hw_utils.h"
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#include "lock_jumper.h"
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#include "status_led.h"
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static bool LockJumper_ReadPin(void);
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static GPIO_TypeDef *lock_periph;
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static uint32_t lock_llpin;
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static bool old_state = false;
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static uint32_t debo_ticks = 0;
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// We use macros LOCK_JUMPER_PORT, LOCK_JUMPER_PIN from plat_compat.h
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/** Init the jumper subsystem */
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void LockJumper_Init(void)
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{
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bool suc = true;
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Resource pinrsc = rsc_portpin2rsc(LOCK_JUMPER_PORT, LOCK_JUMPER_PIN, &suc);
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assert_param(suc);
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assert_param(E_SUCCESS == rsc_claim(&UNIT_SYSTEM, pinrsc));
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assert_param(hw_pinrsc2ll(pinrsc, &lock_periph, &lock_llpin));
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// Configure for input
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LL_GPIO_SetPinMode(lock_periph, lock_llpin, LL_GPIO_MODE_INPUT);
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// pull-up/down in the opposite direction of the active state
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#if PLAT_LOCK_1CLOSED
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LL_GPIO_SetPinPull(lock_periph, lock_llpin, LL_GPIO_PULL_DOWN);
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#else
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LL_GPIO_SetPinPull(lock_periph, lock_llpin, LL_GPIO_PULL_UP);
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#endif
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#if PLAT_LOCK_BTN
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SystemSettings.editable = false;
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#else
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SystemSettings.editable = (PLAT_LOCK_1CLOSED != LL_GPIO_IsInputPinSet(lock_periph, lock_llpin));
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#endif
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dbg("Settings editable? %d", SystemSettings.editable);
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}
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/** Handle jumper state change */
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static void jumper_changed(void)
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{
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if (SystemSettings.editable) {
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// Unlock
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dbg("LOCK removed, enabling MSC!");
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Indicator_Effect(STATUS_DISK_ATTACHED);
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} else {
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// Lock
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dbg("LOCK replaced, disabling MSC!");
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Indicator_Effect(STATUS_DISK_REMOVED);
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if (SystemSettings.modified) {
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dbg("Saving settings to Flash...");
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settings_save();
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} else {
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dbg("No changes to save.");
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}
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}
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plat_usb_reconnect();
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}
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/** Periodic jumper check */
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void LockJumper_Check(void)
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{
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bool state = LockJumper_ReadPin();
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if (state != old_state) {
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old_state = state;
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debo_ticks = 3;
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}
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if (debo_ticks > 0) {
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if (--debo_ticks == 0) {
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dbg("Debo finished, state %d", (int)state);
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// we've reached a change
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#if PLAT_LOCK_BTN
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if (state == true) {
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SystemSettings.editable = !SystemSettings.editable;
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jumper_changed();
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}
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#else
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SystemSettings.editable = state;
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jumper_changed();
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#endif
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}
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}
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}
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/**
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* Read the jumper / button state.
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*
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* @return true if the jumper is closed, or button pressed
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*/
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static bool LockJumper_ReadPin(void)
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{
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// lock jumper - start with MSC on if removed
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#if PLAT_LOCK_1CLOSED
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return (bool) LL_GPIO_IsInputPinSet(lock_periph, lock_llpin);
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#else
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return ! ((bool) LL_GPIO_IsInputPinSet(lock_periph, lock_llpin));
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#endif
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}
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void LockJumper_CheckInitialState(void)
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{
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#if PLAT_LOCK_BTN
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// no static read - starts with MSC off
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SystemSettings.editable = false;
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old_state = false;
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#else
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old_state = SystemSettings.editable = ! LockJumper_ReadPin();
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#endif
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}
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