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[LPC176x] Update fastio _GET_INPUT, _GET_OUTPUT macros (#11168)

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Chris Pepper 2018-07-02 05:02:38 +01:00 committed by Scott Lahteine
parent 8a8eae8d97
commit 5616581eb1
1 changed files with 4 additions and 14 deletions
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18
Marlin/src/HAL/HAL_LPC1768/fastio.h
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@ -88,25 +88,15 @@ bool useable_hardware_PWM(pin_t pin);
/// set pin as input with pulldown mode
#define _PULLDOWN(IO,V) pinMode(IO, (V) ? INPUT_PULLDOWN : INPUT)
// hg42: all pins can be input or output (I hope)
// hg42: undefined pins create compile error (IO, is no pin)
// hg42: currently not used, but was used by pinsDebug
/// check if pin is an input
#define _GET_INPUT(IO) (LPC1768_PIN_PIN(IO) >= 0)
#define _GET_INPUT(IO) (LPC_GPIO(LPC1768_PIN_PORT(IO))->FIODIR & LPC_PIN(LPC1768_PIN_PIN(IO)) != 0)
/// check if pin is an output
#define _GET_OUTPUT(IO) (LPC1768_PIN_PIN(IO) >= 0)
// hg42: GET_TIMER is used only to check if it's a PWM pin
// hg42: we cannot use USEABLE_HARDWARE_PWM because it uses a function that cannot be used statically
// hg42: instead use PWM bit from the #define
#define _GET_OUTPUT(IO) (LPC_GPIO(LPC1768_PIN_PORT(IO))->FIODIR & LPC_PIN(LPC1768_PIN_PIN(IO)) == 0)
/// check if pin is a timer
#define _GET_TIMER(IO) TRUE // could be LPC1768_PIN_PWM(IO), but there
// hg42: could be this:
// #define _GET_TIMER(IO) LPC1768_PIN_PWM(IO)
// but this is an incomplete check (12 pins are PWMable, but only 6 can be used at the same time)
/// all gpio pins are pwm capable, either interrupt or hardware pwm controlled
#define _GET_TIMER(IO) TRUE
/// Read a pin wrapper
#define READ(IO) _READ(IO)