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Disable hardware PWM on ESP32 I2S expander (#13762)

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This commit is contained in:
Kajetan Rzepecki 2019-04-20 20:41:17 +02:00 committed by Scott Lahteine
parent bddb776ddb
commit ea1ee02b53
1 changed files with 9 additions and 4 deletions
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13
Marlin/src/HAL/HAL_ESP32/fastio_ESP32.h
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@ -27,6 +27,10 @@
* Utility functions
*/
// I2S expander pin mapping.
#define IS_I2S_EXPANDER_PIN(IO) TEST(IO, 7)
#define I2S_EXPANDER_PIN_INDEX(IO) (IO & 0x7F)
// Set pin as input
#define _SET_INPUT(IO) pinMode(IO, INPUT)
@ -37,10 +41,10 @@
#define _PULLUP(IO, v) pinMode(IO, v ? INPUT_PULLUP : INPUT)
// Read a pin wrapper
#define READ(IO) (TEST(IO, 7) ? i2s_state(IO & 0x7F) : digitalRead(IO))
#define READ(IO) (IS_I2S_EXPANDER_PIN(IO) ? i2s_state(I2S_EXPANDER_PIN_INDEX(IO)) : digitalRead(IO))
// Write to a pin wrapper
#define WRITE(IO, v) (TEST(IO, 7) ? i2s_write(IO & 0x7F, v) : digitalWrite(IO, v))
#define WRITE(IO, v) (IS_I2S_EXPANDER_PIN(IO) ? i2s_write(I2S_EXPANDER_PIN_INDEX(IO), v) : digitalWrite(IO, v))
// Set pin as input wrapper
#define SET_INPUT(IO) _SET_INPUT(IO)
@ -61,8 +65,9 @@
#define extDigitalRead(IO) digitalRead(IO)
#define extDigitalWrite(IO,V) digitalWrite(IO,V)
#define PWM_PIN(P) true
#define USEABLE_HARDWARE_PWM(P) PWM_PIN(P)
// PWM outputs
#define PWM_PIN(P) (P < 34) // NOTE Pins >= 34 are input only on ESP32, so they can't be used for output.
#define USEABLE_HARDWARE_PWM(P) (!IS_I2S_EXPANDER_PIN(P) && PWM_PIN(P))
// Toggle pin value
#define TOGGLE(IO) WRITE(IO, !READ(IO))