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#244 add API call getPinModeAlt

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This commit is contained in:
mstroh76
2024-05-30 16:52:04 +02:00
parent d7debf2875
commit 4db79da55b
4 changed files with 113 additions and 9 deletions
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22
wiringPi/wiringPi.c
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@@ -156,8 +156,12 @@ const unsigned int RP1_DEBOUNCE_DEFAULT_VALUE = 4;
const unsigned int RP1_DEBOUNCE_MASK = 0x7f;
const unsigned int RP1_DEBOUNCE_DEFAULT = (RP1_DEBOUNCE_DEFAULT_VALUE << 5);
const unsigned int RP1_IRQRESET = 0x10000000; //CTRL Bit 28
const unsigned int RP1_PAD_DEFAULT_0TO8 = (0x0B | 0x70); //Slewfast, Schmitt, PullUp, | 12mA, Input enable
const unsigned int RP1_PAD_DEFAULT_FROM9 = (0x07 | 0x70); //Slewfast, Schmitt, PullDown, | 12mA, Input enable
const unsigned int RP1_PAD_IC_DEFAULT_0TO8 = 0x9A; //pull-up, Schmitt
const unsigned int RP1_PAD_IC_DEFAULT_FROM9 = 0x96; //pull-down, Schmitt
const unsigned int RP1_PAD_DRIVE_MASK = 0x00000030;
const unsigned int RP1_INV_PAD_DRIVE_MASK = ~(RP1_PAD_DRIVE_MASK);
@@ -1314,6 +1318,11 @@ int getAlt (int pin)
}
enum WPIPinALT getPinModeAlt(int pin) {
return (enum WPIPinALT) getAlt(pin);
}
/*
* pwmSetMode:
* Select the native "balanced" mode, or standard mark:space mode
@@ -1727,11 +1736,16 @@ void pinMode (int pin, int mode)
fSel = gpioToGPFSEL [pin] ;
shift = gpioToShift [pin] ;
if (mode == INPUT) {
if (INPUT==mode || PM_OFF==mode) {
if (PI_MODEL_5 == RaspberryPiModel) {
pads[1+pin] = (pin<=8) ? RP1_PAD_DEFAULT_0TO8 : RP1_PAD_DEFAULT_FROM9;
gpio[2*pin+1] = RP1_FSEL_GPIO | RP1_DEBOUNCE_DEFAULT; // GPIO
rio[RP1_RIO_OE + RP1_CLR_OFFSET] = 1<<pin; // Input
if (INPUT==mode) {
pads[1+pin] = (pin<=8) ? RP1_PAD_DEFAULT_0TO8 : RP1_PAD_DEFAULT_FROM9;
gpio[2*pin+1] = RP1_FSEL_GPIO | RP1_DEBOUNCE_DEFAULT; // GPIO
rio[RP1_RIO_OE + RP1_CLR_OFFSET] = 1<<pin; // Input
} else { //PM_OFF
pads[1+pin] = (pin<=8) ? RP1_PAD_IC_DEFAULT_0TO8 : RP1_PAD_IC_DEFAULT_FROM9;
gpio[2*pin+1] = RP1_IRQRESET | RP1_FSEL_NONE_HW | RP1_DEBOUNCE_DEFAULT; // default but with irq reset
}
} else {
*(gpio + fSel) = (*(gpio + fSel) & ~(7 << shift)) ; // Sets bits to zero = input
}