mirror of
https://github.com/jialexd/sdk-ameba-v4.0c_180328.git
synced 2024-12-01 02:30:32 +00:00
77 lines
1.6 KiB
C
77 lines
1.6 KiB
C
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/* mbed Microcontroller Library
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*******************************************************************************
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* Copyright (c) 2014, Realtek Semiconductor Corp.
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* All rights reserved.
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*
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* This module is a confidential and proprietary property of RealTek and
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* possession or use of this module requires written permission of RealTek.
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*******************************************************************************
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*/
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#include "objects.h"
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#include "pinmap.h"
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/**
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* Configure pin enable and function
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*/
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void pin_function(PinName pin, int function)
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{
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u8 dword_index = 0;
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u8 shift_bits = 0;
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u32 Temp = 0;
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assert_param(pin != NC);
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/* 16bit per one pad */
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/* get PADCTR dword inedex*/
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dword_index = pin >> 1;
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/* get shift_bits in PADCTR dword */
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shift_bits = (pin % 2) * 16;
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/* get PADCTR */
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Temp = PINMUX->PADCTR[dword_index];
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/* clear Pin_Num PADCTR */
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if(shift_bits){
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Temp &= 0x0000FFFF;
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}else{
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Temp &= 0xFFFF0000;
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}
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/* set needs function */
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Temp |= ((function & 0xFF) | BIT(8)) << shift_bits; /* bit8 is close pad power down */
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/* set PADCTR register */
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PINMUX->PADCTR[dword_index] = Temp;
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}
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/**
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* Configure pin pull-up/pull-down
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*/
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void pin_mode(PinName pin, PinMode mode)
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{
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u8 pull_type;
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switch (mode) {
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case PullNone:
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pull_type = GPIO_PuPd_NOPULL;
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break;
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case PullDown:
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pull_type = GPIO_PuPd_DOWN;
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break;
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case PullUp:
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pull_type = GPIO_PuPd_UP;
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break;
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case OpenDrain:
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default:
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pull_type = GPIO_PuPd_NOPULL;
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break;
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}
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PAD_PullCtrl((u32)pin, (u32)pull_type);
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}
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