mirror of
https://github.com/qmk/qmk_firmware.git
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9632360caa
* Add ARRAY_SIZE and CEILING utility macros * Apply a coccinelle patch to use ARRAY_SIZE * fix up some straggling items * Fix 'make test:secure' * Enhance ARRAY_SIZE macro to reject acting on pointers The previous definition would not produce a diagnostic for ``` int *p; size_t num_elem = ARRAY_SIZE(p) ``` but the new one will. * explicitly get definition of ARRAY_SIZE * Convert to ARRAY_SIZE when const is involved The following spatch finds additional instances where the array is const and the division is by the size of the type, not the size of the first element: ``` @ rule5a using "empty.iso" @ type T; const T[] E; @@ - (sizeof(E)/sizeof(T)) + ARRAY_SIZE(E) @ rule6a using "empty.iso" @ type T; const T[] E; @@ - sizeof(E)/sizeof(T) + ARRAY_SIZE(E) ``` * New instances of ARRAY_SIZE added since initial spatch run * Use `ARRAY_SIZE` in docs (found by grep) * Manually use ARRAY_SIZE hs_set is expected to be the same size as uint16_t, though it's made of two 8-bit integers * Just like char, sizeof(uint8_t) is guaranteed to be 1 This is at least true on any plausible system where qmk is actually used. Per my understanding it's universally true, assuming that uint8_t exists: https://stackoverflow.com/questions/48655310/can-i-assume-that-sizeofuint8-t-1 * Run qmk-format on core C files touched in this branch Co-authored-by: Stefan Kerkmann <karlk90@pm.me>
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
#include "quantum.h"
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#include "backlight.h"
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#include "backlight_driver_common.h"
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#if !defined(BACKLIGHT_PIN) && !defined(BACKLIGHT_PINS)
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# error "Backlight pin/pins not defined. Please configure."
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#endif
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#if defined(BACKLIGHT_PINS)
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static const pin_t backlight_pins[] = BACKLIGHT_PINS;
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# ifndef BACKLIGHT_LED_COUNT
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# define BACKLIGHT_LED_COUNT ARRAY_SIZE(backlight_pins)
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# endif
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# define FOR_EACH_LED(x) \
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for (uint8_t i = 0; i < BACKLIGHT_LED_COUNT; i++) { \
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pin_t backlight_pin = backlight_pins[i]; \
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{ x } \
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}
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#else
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// we support only one backlight pin
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static const pin_t backlight_pin = BACKLIGHT_PIN;
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# define FOR_EACH_LED(x) x
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#endif
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static inline void backlight_on(pin_t backlight_pin) {
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#if BACKLIGHT_ON_STATE == 0
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writePinLow(backlight_pin);
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#else
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writePinHigh(backlight_pin);
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#endif
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}
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static inline void backlight_off(pin_t backlight_pin) {
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#if BACKLIGHT_ON_STATE == 0
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writePinHigh(backlight_pin);
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#else
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writePinLow(backlight_pin);
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#endif
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}
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void backlight_pins_init(void) {
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// Setup backlight pin as output and output to off state.
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FOR_EACH_LED(setPinOutput(backlight_pin); backlight_off(backlight_pin);)
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}
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void backlight_pins_on(void) {
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FOR_EACH_LED(backlight_on(backlight_pin);)
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}
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void backlight_pins_off(void) {
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FOR_EACH_LED(backlight_off(backlight_pin);)
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}
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