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/*
* Copyright (c) 2022 OpenLuat & AirM2M
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "user.h"
typedef struct
{
const I2C_TypeDef *RegBase;
const int IrqLine;
CBFuncEx_t CB;
void *pParam;
}KB_CtrlStruct;
static KB_CtrlStruct prvKB = {
KCU,
KBD_IRQn,
};
static int32_t prvKB_DummyCB(void *pData, void *pParam)
{
return 0;
}
static void KB_IrqHandle(int32_t IrqLine, void *pData)
{
uint32_t Status, Event, i, type, key;
Status = KCU->KCU_STATUS;
Event = KCU->KCU_EVENT;
ISR_Clear(IrqLine);
for(i = 0; i < 4; i++)
{
if (Status & (1 << (2 * i + 5)))
{
type = (Status & (1 << (2 * i + 4)))?1:0;
key = (Event & (0x000000ff << (i * 8))) >> (i * 8);
key |= (type << 16);
prvKB.CB(key, prvKB.pParam);
}
}
}
void KB_Setup(uint16_t PinConfigMap, uint16_t Debounce, CBFuncEx_t CB, void *pParam)
{
uint32_t Dummy;
ISR_OnOff(prvKB.IrqLine, 0);
KCU->KCU_CTRL1 &= KCU_CTRL1_KCU_RUNING;
while ((KCU->KCU_CTRL1 & KCU_CTRL1_KCU_RUNING));
Dummy = KCU->KCU_EVENT;
Debounce &= 0x7;
KCU->KCU_CTRL0 = (PinConfigMap & 0x01ff) | (Debounce << 9);
if (CB)
{
prvKB.CB = CB;
}
else
{
prvKB.CB = prvKB_DummyCB;
}
prvKB.pParam = pParam;
KCU->KCU_CTRL1 |= (KCU_CTRL1_KBD_EN|KCU_CTRL1_PUSH_IT|KCU_CTRL1_RELEASE_IT|KCU_CTRL1_OVERRUN_IT);
ISR_SetHandler(prvKB.IrqLine, KB_IrqHandle, NULL);
#ifdef __BUILD_OS__
ISR_SetPriority(prvKB.IrqLine, configLIBRARY_LOWEST_INTERRUPT_PRIORITY - 1);
#else
ISR_SetPriority(prvKB.IrqLine, 7);
#endif
ISR_OnOff(prvKB.IrqLine, 1);
}
void KB_Stop(void)
{
ISR_OnOff(prvKB.IrqLine, 0);
KCU->KCU_CTRL1 &= KCU_CTRL1_KCU_RUNING;
}
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