diff --git a/docs/custom_quantum_functions.md b/docs/custom_quantum_functions.md index 957633837c4..bc3b28bbba7 100644 --- a/docs/custom_quantum_functions.md +++ b/docs/custom_quantum_functions.md @@ -119,11 +119,11 @@ void keyboard_pre_init_user(void) { // Call the keyboard pre init code. // Set our LED pins as output - setPinOutput(B0); - setPinOutput(B1); - setPinOutput(B2); - setPinOutput(B3); - setPinOutput(B4); + gpio_set_pin_output(B0); + gpio_set_pin_output(B1); + gpio_set_pin_output(B2); + gpio_set_pin_output(B3); + gpio_set_pin_output(B4); } ``` diff --git a/docs/feature_led_indicators.md b/docs/feature_led_indicators.md index 1f71cdb1c81..b35a1744907 100644 --- a/docs/feature_led_indicators.md +++ b/docs/feature_led_indicators.md @@ -56,16 +56,16 @@ This is a template indicator function that can be implemented on keyboard level bool led_update_kb(led_t led_state) { bool res = led_update_user(led_state); if(res) { - // writePin sets the pin high for 1 and low for 0. + // gpio_write_pin sets the pin high for 1 and low for 0. // In this example the pins are inverted, setting // it low/0 turns it on, and high/1 turns the LED off. // This behavior depends on whether the LED is between the pin // and VCC or the pin and GND. - writePin(B0, !led_state.num_lock); - writePin(B1, !led_state.caps_lock); - writePin(B2, !led_state.scroll_lock); - writePin(B3, !led_state.compose); - writePin(B4, !led_state.kana); + gpio_write_pin(B0, !led_state.num_lock); + gpio_write_pin(B1, !led_state.caps_lock); + gpio_write_pin(B2, !led_state.scroll_lock); + gpio_write_pin(B3, !led_state.compose); + gpio_write_pin(B4, !led_state.kana); } return res; } diff --git a/docs/gpio_control.md b/docs/gpio_control.md index 12413dfc8e6..90798fc87b8 100644 --- a/docs/gpio_control.md +++ b/docs/gpio_control.md @@ -2,29 +2,29 @@ QMK has a GPIO control abstraction layer which is microcontroller agnostic. This is done to allow easy access to pin control across different platforms. -## Functions :id=functions - -The following functions provide basic control of GPIOs and are found in `platforms//gpio.h`. - -| Function | Description | Old AVR Examples | Old ChibiOS/ARM Examples | -|------------------------------|-----------------------------------------------------|-------------------------------------------------|--------------------------------------------------| -| `setPinInput(pin)` | Set pin as input with high impedance (High-Z) | `DDRB &= ~(1<<2)` | `palSetLineMode(pin, PAL_MODE_INPUT)` | -| `setPinInputHigh(pin)` | Set pin as input with builtin pull-up resistor | `DDRB &= ~(1<<2); PORTB \|= (1<<2)` | `palSetLineMode(pin, PAL_MODE_INPUT_PULLUP)` | -| `setPinInputLow(pin)` | Set pin as input with builtin pull-down resistor | N/A (Not supported on AVR) | `palSetLineMode(pin, PAL_MODE_INPUT_PULLDOWN)` | -| `setPinOutput(pin)` | Set pin as output (alias of `setPinOutputPushPull`) | `DDRB \|= (1<<2)` | `palSetLineMode(pin, PAL_MODE_OUTPUT_PUSHPULL)` | -| `setPinOutputPushPull(pin)` | Set pin as output, push/pull mode | `DDRB \|= (1<<2)` | `palSetLineMode(pin, PAL_MODE_OUTPUT_PUSHPULL)` | -| `setPinOutputOpenDrain(pin)` | Set pin as output, open-drain mode | N/A (Not implemented on AVR) | `palSetLineMode(pin, PAL_MODE_OUTPUT_OPENDRAIN)` | -| `writePinHigh(pin)` | Set pin level as high, assuming it is an output | `PORTB \|= (1<<2)` | `palSetLine(pin)` | -| `writePinLow(pin)` | Set pin level as low, assuming it is an output | `PORTB &= ~(1<<2)` | `palClearLine(pin)` | -| `writePin(pin, level)` | Set pin level, assuming it is an output | `(level) ? PORTB \|= (1<<2) : PORTB &= ~(1<<2)` | `(level) ? palSetLine(pin) : palClearLine(pin)` | -| `readPin(pin)` | Returns the level of the pin | `_SFR_IO8(pin >> 4) & _BV(pin & 0xF)` | `palReadLine(pin)` | -| `togglePin(pin)` | Invert pin level, assuming it is an output | `PORTB ^= (1<<2)` | `palToggleLine(pin)` | +## Macros :id=macros + +The following macros provide basic control of GPIOs and are found in `platforms//gpio.h`. + +|Macro |Description | +|-------------------------------------|---------------------------------------------------------------------| +|`gpio_set_pin_input(pin)` |Set pin as input with high impedance (High-Z) | +|`gpio_set_pin_input_high(pin)` |Set pin as input with builtin pull-up resistor | +|`gpio_set_pin_input_low(pin)` |Set pin as input with builtin pull-down resistor (unavailable on AVR)| +|`gpio_set_pin_output(pin)` |Set pin as output (alias of `gpio_set_pin_output_push_pull`) | +|`gpio_set_pin_output_push_pull(pin)` |Set pin as output, push/pull mode | +|`gpio_set_pin_output_open_drain(pin)`|Set pin as output, open-drain mode (unavailable on AVR and ATSAM) | +|`gpio_write_pin_high(pin)` |Set pin level as high, assuming it is an output | +|`gpio_write_pin_low(pin)` |Set pin level as low, assuming it is an output | +|`gpio_write_pin(pin, level)` |Set pin level, assuming it is an output | +|`gpio_read_pin(pin)` |Returns the level of the pin | +|`gpio_toggle_pin(pin)` |Invert pin level, assuming it is an output | ## Advanced Settings :id=advanced-settings -Each microcontroller can have multiple advanced settings regarding its GPIO. This abstraction layer does not limit the use of architecture-specific functions. Advanced users should consult the datasheet of their desired device and include any needed libraries. For AVR, the standard avr/io.h library is used; for STM32, the ChibiOS [PAL library](https://chibios.sourceforge.net/docs3/hal/group___p_a_l.html) is used. +Each microcontroller can have multiple advanced settings regarding its GPIO. This abstraction layer does not limit the use of architecture-specific functions. Advanced users should consult the datasheet of their desired device. For AVR, the standard `avr/io.h` library is used; for STM32, the ChibiOS [PAL library](https://chibios.sourceforge.net/docs3/hal/group___p_a_l.html) is used. -## Atomic Operation +## Atomic Operation :id=atomic-operation The above functions are not always guaranteed to work atomically. Therefore, if you want to prevent interruptions in the middle of operations when using multiple combinations of the above functions, use the following `ATOMIC_BLOCK_FORCEON` macro. diff --git a/docs/i2c_driver.md b/docs/i2c_driver.md index 868715a62c8..9a3c08b90b6 100644 --- a/docs/i2c_driver.md +++ b/docs/i2c_driver.md @@ -127,8 +127,8 @@ This function is weakly defined, meaning it can be overridden if necessary for y ```c void i2c_init(void) { - setPinInput(B6); // Try releasing special pins for a short time - setPinInput(B7); + gpio_set_pin_input(B6); // Try releasing special pins for a short time + gpio_set_pin_input(B7); wait_ms(10); // Wait for the release to happen palSetPadMode(GPIOB, 6, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN | PAL_STM32_PUPDR_PULLUP); // Set B6 to I2C function diff --git a/platforms/arm_atsam/gpio.h b/platforms/arm_atsam/gpio.h index a42aaff54d6..fd8caeab0bc 100644 --- a/platforms/arm_atsam/gpio.h +++ b/platforms/arm_atsam/gpio.h @@ -15,7 +15,7 @@ */ #pragma once -#include "stdint.h" +#include #include "samd51j18a.h" #include "pin_defs.h" @@ -26,13 +26,13 @@ typedef uint8_t pin_t; #define SAMD_PIN(pin) ((pin)&0x1f) #define SAMD_PIN_MASK(pin) (1 << ((pin)&0x1f)) -#define setPinInput(pin) \ +#define gpio_set_pin_input(pin) \ do { \ PORT->Group[SAMD_PORT(pin)].PINCFG[SAMD_PIN(pin)].bit.INEN = 1; \ PORT->Group[SAMD_PORT(pin)].DIRCLR.reg = SAMD_PIN_MASK(pin); \ } while (0) -#define setPinInputHigh(pin) \ +#define gpio_set_pin_input_high(pin) \ do { \ PORT->Group[SAMD_PORT(pin)].DIRCLR.reg = SAMD_PIN_MASK(pin); \ PORT->Group[SAMD_PORT(pin)].OUTSET.reg = SAMD_PIN_MASK(pin); \ @@ -40,7 +40,7 @@ typedef uint8_t pin_t; PORT->Group[SAMD_PORT(pin)].PINCFG[SAMD_PIN(pin)].bit.PULLEN = 1; \ } while (0) -#define setPinInputLow(pin) \ +#define gpio_set_pin_input_low(pin) \ do { \ PORT->Group[SAMD_PORT(pin)].DIRCLR.reg = SAMD_PIN_MASK(pin); \ PORT->Group[SAMD_PORT(pin)].OUTCLR.reg = SAMD_PIN_MASK(pin); \ @@ -48,27 +48,27 @@ typedef uint8_t pin_t; PORT->Group[SAMD_PORT(pin)].PINCFG[SAMD_PIN(pin)].bit.PULLEN = 1; \ } while (0) -#define setPinOutputPushPull(pin) \ +#define gpio_set_pin_output_push_pull(pin) \ do { \ PORT->Group[SAMD_PORT(pin)].DIRSET.reg = SAMD_PIN_MASK(pin); \ PORT->Group[SAMD_PORT(pin)].OUTCLR.reg = SAMD_PIN_MASK(pin); \ } while (0) -#define setPinOutputOpenDrain(pin) _Static_assert(0, "arm_atsam platform does not implement an open-drain output") +#define gpio_set_pin_output_open_drain(pin) _Static_assert(0, "Open-drain outputs are not available on ATSAM") -#define setPinOutput(pin) setPinOutputPushPull(pin) +#define gpio_set_pin_output(pin) gpio_set_pin_output_push_pull(pin) -#define writePinHigh(pin) \ +#define gpio_write_pin_high(pin) \ do { \ PORT->Group[SAMD_PORT(pin)].OUTSET.reg = SAMD_PIN_MASK(pin); \ } while (0) -#define writePinLow(pin) \ +#define gpio_write_pin_low(pin) \ do { \ PORT->Group[SAMD_PORT(pin)].OUTCLR.reg = SAMD_PIN_MASK(pin); \ } while (0) -#define writePin(pin, level) \ +#define gpio_write_pin(pin, level) \ do { \ if (level) \ PORT->Group[SAMD_PORT(pin)].OUTSET.reg = SAMD_PIN_MASK(pin); \ @@ -76,6 +76,6 @@ typedef uint8_t pin_t; PORT->Group[SAMD_PORT(pin)].OUTCLR.reg = SAMD_PIN_MASK(pin); \ } while (0) -#define readPin(pin) ((PORT->Group[SAMD_PORT(pin)].IN.reg & SAMD_PIN_MASK(pin)) != 0) +#define gpio_read_pin(pin) ((PORT->Group[SAMD_PORT(pin)].IN.reg & SAMD_PIN_MASK(pin)) != 0) -#define togglePin(pin) (PORT->Group[SAMD_PORT(pin)].OUTTGL.reg = SAMD_PIN_MASK(pin)) +#define gpio_toggle_pin(pin) (PORT->Group[SAMD_PORT(pin)].OUTTGL.reg = SAMD_PIN_MASK(pin)) diff --git a/platforms/avr/gpio.h b/platforms/avr/gpio.h index 95f15c28dcd..6f089bc6638 100644 --- a/platforms/avr/gpio.h +++ b/platforms/avr/gpio.h @@ -22,17 +22,17 @@ typedef uint8_t pin_t; /* Operation of GPIO by pin. */ -#define setPinInput(pin) (DDRx_ADDRESS(pin) &= ~_BV((pin)&0xF), PORTx_ADDRESS(pin) &= ~_BV((pin)&0xF)) -#define setPinInputHigh(pin) (DDRx_ADDRESS(pin) &= ~_BV((pin)&0xF), PORTx_ADDRESS(pin) |= _BV((pin)&0xF)) -#define setPinInputLow(pin) _Static_assert(0, "AVR processors cannot implement an input as pull low") -#define setPinOutputPushPull(pin) (DDRx_ADDRESS(pin) |= _BV((pin)&0xF)) -#define setPinOutputOpenDrain(pin) _Static_assert(0, "AVR platform does not implement an open-drain output") -#define setPinOutput(pin) setPinOutputPushPull(pin) +#define gpio_set_pin_input(pin) (DDRx_ADDRESS(pin) &= ~_BV((pin)&0xF), PORTx_ADDRESS(pin) &= ~_BV((pin)&0xF)) +#define gpio_set_pin_input_high(pin) (DDRx_ADDRESS(pin) &= ~_BV((pin)&0xF), PORTx_ADDRESS(pin) |= _BV((pin)&0xF)) +#define gpio_set_pin_input_low(pin) _Static_assert(0, "GPIO pulldowns in input mode are not available on AVR") +#define gpio_set_pin_output_push_pull(pin) (DDRx_ADDRESS(pin) |= _BV((pin)&0xF)) +#define gpio_set_pin_output_open_drain(pin) _Static_assert(0, "Open-drain outputs are not available on AVR") +#define gpio_set_pin_output(pin) gpio_set_pin_output_push_pull(pin) -#define writePinHigh(pin) (PORTx_ADDRESS(pin) |= _BV((pin)&0xF)) -#define writePinLow(pin) (PORTx_ADDRESS(pin) &= ~_BV((pin)&0xF)) -#define writePin(pin, level) ((level) ? writePinHigh(pin) : writePinLow(pin)) +#define gpio_write_pin_high(pin) (PORTx_ADDRESS(pin) |= _BV((pin)&0xF)) +#define gpio_write_pin_low(pin) (PORTx_ADDRESS(pin) &= ~_BV((pin)&0xF)) +#define gpio_write_pin(pin, level) ((level) ? gpio_write_pin_high(pin) : gpio_write_pin_low(pin)) -#define readPin(pin) ((bool)(PINx_ADDRESS(pin) & _BV((pin)&0xF))) +#define gpio_read_pin(pin) ((bool)(PINx_ADDRESS(pin) & _BV((pin)&0xF))) -#define togglePin(pin) (PORTx_ADDRESS(pin) ^= _BV((pin)&0xF)) +#define gpio_toggle_pin(pin) (PORTx_ADDRESS(pin) ^= _BV((pin)&0xF)) diff --git a/platforms/chibios/gpio.h b/platforms/chibios/gpio.h index 80551abac58..a8d6554f296 100644 --- a/platforms/chibios/gpio.h +++ b/platforms/chibios/gpio.h @@ -22,24 +22,24 @@ typedef ioline_t pin_t; /* Operation of GPIO by pin. */ -#define setPinInput(pin) palSetLineMode((pin), PAL_MODE_INPUT) -#define setPinInputHigh(pin) palSetLineMode((pin), PAL_MODE_INPUT_PULLUP) -#define setPinInputLow(pin) palSetLineMode((pin), PAL_MODE_INPUT_PULLDOWN) -#define setPinOutputPushPull(pin) palSetLineMode((pin), PAL_MODE_OUTPUT_PUSHPULL) -#define setPinOutputOpenDrain(pin) palSetLineMode((pin), PAL_MODE_OUTPUT_OPENDRAIN) -#define setPinOutput(pin) setPinOutputPushPull(pin) +#define gpio_set_pin_input(pin) palSetLineMode((pin), PAL_MODE_INPUT) +#define gpio_set_pin_input_high(pin) palSetLineMode((pin), PAL_MODE_INPUT_PULLUP) +#define gpio_set_pin_input_low(pin) palSetLineMode((pin), PAL_MODE_INPUT_PULLDOWN) +#define gpio_set_pin_output_push_pull(pin) palSetLineMode((pin), PAL_MODE_OUTPUT_PUSHPULL) +#define gpio_set_pin_output_open_drain(pin) palSetLineMode((pin), PAL_MODE_OUTPUT_OPENDRAIN) +#define gpio_set_pin_output(pin) gpio_set_pin_output_push_pull(pin) -#define writePinHigh(pin) palSetLine(pin) -#define writePinLow(pin) palClearLine(pin) -#define writePin(pin, level) \ - do { \ - if (level) { \ - writePinHigh(pin); \ - } else { \ - writePinLow(pin); \ - } \ +#define gpio_write_pin_high(pin) palSetLine(pin) +#define gpio_write_pin_low(pin) palClearLine(pin) +#define gpio_write_pin(pin, level) \ + do { \ + if (level) { \ + gpio_write_pin_high(pin); \ + } else { \ + gpio_write_pin_low(pin); \ + } \ } while (0) -#define readPin(pin) palReadLine(pin) +#define gpio_read_pin(pin) palReadLine(pin) -#define togglePin(pin) palToggleLine(pin) +#define gpio_toggle_pin(pin) palToggleLine(pin) diff --git a/platforms/gpio.h b/platforms/gpio.h index b47f6f8e432..6a87e75b014 100644 --- a/platforms/gpio.h +++ b/platforms/gpio.h @@ -19,4 +19,21 @@ #if __has_include_next("gpio.h") # include_next "gpio.h" /* Include the platforms gpio.h */ -#endif \ No newline at end of file +#endif + +// ======== DEPRECATED DEFINES - DO NOT USE ======== + +#define setPinInput(pin) gpio_set_pin_input(pin) +#define setPinInputHigh(pin) gpio_set_pin_input_high(pin) +#define setPinInputLow(pin) gpio_set_pin_input_low(pin) +#define setPinOutputPushPull(pin) gpio_set_pin_output_push_pull(pin) +#define setPinOutputOpenDrain(pin) gpio_set_pin_output_open_drain(pin) +#define setPinOutput(pin) gpio_set_pin_output_push_pull(pin) + +#define writePinHigh(pin) gpio_write_pin_high(pin) +#define writePinLow(pin) gpio_write_pin_low(pin) +#define writePin(pin, level) gpio_write_pin(pin, level) + +#define readPin(pin) gpio_read_pin(pin) + +#define togglePin(pin) gpio_toggle_pin(pin) diff --git a/quantum/encoder/tests/mock.c b/quantum/encoder/tests/mock.c index 61f2f8294df..1524e61ca48 100644 --- a/quantum/encoder/tests/mock.c +++ b/quantum/encoder/tests/mock.c @@ -19,14 +19,14 @@ bool pins[32] = {0}; bool pinIsInputHigh[32] = {0}; -uint8_t mockSetPinInputHigh(pin_t pin) { +uint8_t mock_set_pin_input_high(pin_t pin) { // dprintf("Setting pin %d input high.", pin); pins[pin] = true; pinIsInputHigh[pin] = true; return 0; } -bool mockReadPin(pin_t pin) { +bool mock_read_pin(pin_t pin) { return pins[pin]; } diff --git a/quantum/encoder/tests/mock.h b/quantum/encoder/tests/mock.h index 80c336b5ef6..28774b82ab2 100644 --- a/quantum/encoder/tests/mock.h +++ b/quantum/encoder/tests/mock.h @@ -24,11 +24,11 @@ typedef uint8_t pin_t; extern bool pins[]; extern bool pinIsInputHigh[]; -#define setPinInputHigh(pin) (mockSetPinInputHigh(pin)) -#define readPin(pin) (mockReadPin(pin)) +#define gpio_set_pin_input_high(pin) (mock_set_pin_input_high(pin)) +#define gpio_read_pin(pin) (mock_read_pin(pin)) -uint8_t mockSetPinInputHigh(pin_t pin); +uint8_t mock_set_pin_input_high(pin_t pin); -bool mockReadPin(pin_t pin); +bool mock_read_pin(pin_t pin); bool setPin(pin_t pin, bool val); diff --git a/quantum/encoder/tests/mock_split.c b/quantum/encoder/tests/mock_split.c index 5cc6cd19e17..f024c2058d6 100644 --- a/quantum/encoder/tests/mock_split.c +++ b/quantum/encoder/tests/mock_split.c @@ -19,14 +19,14 @@ bool pins[32] = {0}; bool pinIsInputHigh[32] = {0}; -uint8_t mockSetPinInputHigh(pin_t pin) { +uint8_t mock_set_pin_input_high(pin_t pin) { // dprintf("Setting pin %d input high.", pin); pins[pin] = true; pinIsInputHigh[pin] = true; return 0; } -bool mockReadPin(pin_t pin) { +bool mock_read_pin(pin_t pin) { return pins[pin]; } diff --git a/quantum/encoder/tests/mock_split.h b/quantum/encoder/tests/mock_split.h index 2fc12f18306..8b4a141078a 100644 --- a/quantum/encoder/tests/mock_split.h +++ b/quantum/encoder/tests/mock_split.h @@ -28,11 +28,11 @@ void encoder_update_raw(uint8_t* slave_state); extern bool pins[]; extern bool pinIsInputHigh[]; -#define setPinInputHigh(pin) (mockSetPinInputHigh(pin)) -#define readPin(pin) (mockReadPin(pin)) +#define gpio_set_pin_input_high(pin) (mock_set_pin_input_high(pin)) +#define gpio_read_pin(pin) (mock_read_pin(pin)) -uint8_t mockSetPinInputHigh(pin_t pin); +uint8_t mock_set_pin_input_high(pin_t pin); -bool mockReadPin(pin_t pin); +bool mock_read_pin(pin_t pin); bool setPin(pin_t pin, bool val);