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-rw-r--r--quantum/backlight/backlight_chibios.c173
1 files changed, 0 insertions, 173 deletions
diff --git a/quantum/backlight/backlight_chibios.c b/quantum/backlight/backlight_chibios.c
deleted file mode 100644
index 30e95bd5c8..0000000000
--- a/quantum/backlight/backlight_chibios.c
+++ /dev/null
@@ -1,173 +0,0 @@
-#include "quantum.h"
-#include "backlight.h"
-#include <hal.h>
-#include "debug.h"
-
-// Maximum duty cycle limit
-#ifndef BACKLIGHT_LIMIT_VAL
-# define BACKLIGHT_LIMIT_VAL 255
-#endif
-
-#ifndef BACKLIGHT_PAL_MODE
-# if defined(USE_GPIOV1)
-# define BACKLIGHT_PAL_MODE PAL_MODE_ALTERNATE_PUSHPULL
-# else
-// GPIOV2 && GPIOV3
-# define BACKLIGHT_PAL_MODE 5
-# endif
-#endif
-
-// GENERIC
-#ifndef BACKLIGHT_PWM_DRIVER
-# define BACKLIGHT_PWM_DRIVER PWMD4
-#endif
-#ifndef BACKLIGHT_PWM_CHANNEL
-# define BACKLIGHT_PWM_CHANNEL 3
-#endif
-
-// Support for pins which are on TIM1_CH1N - requires STM32_PWM_USE_ADVANCED
-#ifdef BACKLIGHT_PWM_COMPLEMENTARY_OUTPUT
-# if BACKLIGHT_ON_STATE == 1
-# define PWM_OUTPUT_MODE PWM_COMPLEMENTARY_OUTPUT_ACTIVE_LOW;
-# else
-# define PWM_OUTPUT_MODE PWM_COMPLEMENTARY_OUTPUT_ACTIVE_HIGH;
-# endif
-#else
-# if BACKLIGHT_ON_STATE == 1
-# define PWM_OUTPUT_MODE PWM_OUTPUT_ACTIVE_HIGH;
-# else
-# define PWM_OUTPUT_MODE PWM_OUTPUT_ACTIVE_LOW;
-# endif
-#endif
-
-#ifndef BACKLIGHT_PWM_COUNTER_FREQUENCY
-# define BACKLIGHT_PWM_COUNTER_FREQUENCY 0xFFFF
-#endif
-
-#ifndef BACKLIGHT_PWM_PERIOD
-# define BACKLIGHT_PWM_PERIOD 256
-#endif
-
-static PWMConfig pwmCFG = {
- .frequency = BACKLIGHT_PWM_COUNTER_FREQUENCY, /* PWM clock frequency */
- .period = BACKLIGHT_PWM_PERIOD, /* PWM period in counter ticks. e.g. clock frequency is 10KHz, period is 256 ticks then t_period is 25.6ms */
-};
-
-#ifdef BACKLIGHT_BREATHING
-static virtual_timer_t breathing_vt;
-#endif
-
-// See http://jared.geek.nz/2013/feb/linear-led-pwm
-static uint16_t cie_lightness(uint16_t v) {
- if (v <= 5243) // if below 8% of max
- return v / 9; // same as dividing by 900%
- else {
- uint32_t y = (((uint32_t)v + 10486) << 8) / (10486 + 0xFFFFUL); // add 16% of max and compare
- // to get a useful result with integer division, we shift left in the expression above
- // and revert what we've done again after squaring.
- y = y * y * y >> 8;
- if (y > 0xFFFFUL) { // prevent overflow
- return 0xFFFFU;
- } else {
- return (uint16_t)y;
- }
- }
-}
-
-static uint32_t rescale_limit_val(uint32_t val) {
- // rescale the supplied backlight value to be in terms of the value limit
- return (val * (BACKLIGHT_LIMIT_VAL + 1)) / 256;
-}
-
-void backlight_init_ports(void) {
-#ifdef USE_GPIOV1
- palSetPadMode(PAL_PORT(BACKLIGHT_PIN), PAL_PAD(BACKLIGHT_PIN), BACKLIGHT_PAL_MODE);
-#else
- palSetPadMode(PAL_PORT(BACKLIGHT_PIN), PAL_PAD(BACKLIGHT_PIN), PAL_MODE_ALTERNATE(BACKLIGHT_PAL_MODE));
-#endif
-
- pwmCFG.channels[BACKLIGHT_PWM_CHANNEL - 1].mode = PWM_OUTPUT_MODE;
- pwmStart(&BACKLIGHT_PWM_DRIVER, &pwmCFG);
-
- backlight_set(get_backlight_level());
-
-#ifdef BACKLIGHT_BREATHING
- chVTObjectInit(&breathing_vt);
- if (is_backlight_breathing()) {
- breathing_enable();
- }
-#endif
-}
-
-void backlight_set(uint8_t level) {
- if (level > BACKLIGHT_LEVELS) {
- level = BACKLIGHT_LEVELS;
- }
-
- if (level == 0) {
- // Turn backlight off
- pwmDisableChannel(&BACKLIGHT_PWM_DRIVER, BACKLIGHT_PWM_CHANNEL - 1);
- } else {
- // Turn backlight on
- uint32_t duty = (uint32_t)(cie_lightness(rescale_limit_val(0xFFFF * (uint32_t)level / BACKLIGHT_LEVELS)));
- pwmEnableChannel(&BACKLIGHT_PWM_DRIVER, BACKLIGHT_PWM_CHANNEL - 1, PWM_FRACTION_TO_WIDTH(&BACKLIGHT_PWM_DRIVER, 0xFFFF, duty));
- }
-}
-
-void backlight_task(void) {}
-
-#ifdef BACKLIGHT_BREATHING
-
-# define BREATHING_STEPS 128
-
-/* To generate breathing curve in python:
- * from math import sin, pi; [int(sin(x/128.0*pi)**4*255) for x in range(128)]
- */
-static const uint8_t breathing_table[BREATHING_STEPS] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 28, 32, 36, 41, 46, 51, 57, 63, 70, 76, 83, 91, 98, 106, 113, 121, 129, 138, 146, 154, 162, 170, 178, 185, 193, 200, 207, 213, 220, 225, 231, 235, 240, 244, 247, 250, 252, 253, 254, 255, 254, 253, 252, 250, 247, 244, 240, 235, 231, 225, 220, 213, 207, 200, 193, 185, 178, 170, 162, 154, 146, 138, 129, 121, 113, 106, 98, 91, 83, 76, 70, 63, 57, 51, 46, 41, 36, 32, 28, 24, 20, 17, 15, 12, 10, 8, 6, 5, 4, 3, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-
-static void breathing_callback(virtual_timer_t *vtp, void *p);
-
-bool is_breathing(void) {
- return chVTIsArmed(&breathing_vt);
-}
-
-void breathing_enable(void) {
- /* Update frequency is 256Hz -> 3906us intervals */
- chVTSetContinuous(&breathing_vt, TIME_US2I(3906), breathing_callback, NULL);
-}
-
-void breathing_disable(void) {
- chVTReset(&breathing_vt);
-
- // Restore backlight level
- backlight_set(get_backlight_level());
-}
-
-// Use this before the cie_lightness function.
-static inline uint16_t scale_backlight(uint16_t v) {
- return v / BACKLIGHT_LEVELS * get_backlight_level();
-}
-
-static void breathing_callback(virtual_timer_t *vtp, void *p) {
- uint8_t breathing_period = get_breathing_period();
- uint16_t interval = (uint16_t)breathing_period * 256 / BREATHING_STEPS;
-
- // resetting after one period to prevent ugly reset at overflow.
- static uint16_t breathing_counter = 0;
- breathing_counter = (breathing_counter + 1) % (breathing_period * 256);
- uint8_t index = breathing_counter / interval % BREATHING_STEPS;
- uint32_t duty = cie_lightness(rescale_limit_val(scale_backlight(breathing_table[index] * 256)));
-
- chSysLockFromISR();
- pwmEnableChannelI(&BACKLIGHT_PWM_DRIVER, BACKLIGHT_PWM_CHANNEL - 1, PWM_FRACTION_TO_WIDTH(&BACKLIGHT_PWM_DRIVER, 0xFFFF, duty));
- chSysUnlockFromISR();
-}
-
-// TODO: integrate generic pulse solution
-void breathing_pulse(void) {
- backlight_set(is_backlight_enabled() ? 0 : BACKLIGHT_LEVELS);
- wait_ms(10);
- backlight_set(is_backlight_enabled() ? get_backlight_level() : 0);
-}
-
-#endif