From 2728603fe6d73e805a539d337fd01051c46ca806 Mon Sep 17 00:00:00 2001
From: Joel Challis <git@zvecr.com>
Date: Fri, 19 Nov 2021 18:41:02 +0000
Subject: Move tmk_core/common/<plat> (#13918)
---
tmk_core/common/chibios/sleep_led.c | 192 ------------------------------------
1 file changed, 192 deletions(-)
delete mode 100644 tmk_core/common/chibios/sleep_led.c
(limited to 'tmk_core/common/chibios/sleep_led.c')
diff --git a/tmk_core/common/chibios/sleep_led.c b/tmk_core/common/chibios/sleep_led.c
deleted file mode 100644
index 477056a454..0000000000
--- a/tmk_core/common/chibios/sleep_led.c
+++ /dev/null
@@ -1,192 +0,0 @@
-#include <ch.h>
-#include <hal.h>
-
-#include "led.h"
-#include "sleep_led.h"
-
-/* All right, we go the "software" way: timer, toggle LED in interrupt.
- * Based on hasu's code for AVRs.
- * Use LP timer on Kinetises, TIM14 on STM32F0.
- */
-
-#ifndef SLEEP_LED_GPT_DRIVER
-# if defined(STM32F0XX)
-# define SLEEP_LED_GPT_DRIVER GPTD14
-# endif
-#endif
-
-#if defined(KL2x) || defined(K20x) || defined(SLEEP_LED_GPT_DRIVER) /* common parts for timers/interrupts */
-
-/* Breathing Sleep LED brighness(PWM On period) table
- * (64[steps] * 4[duration]) / 64[PWM periods/s] = 4 second breath cycle
- *
- * http://www.wolframalpha.com/input/?i=%28sin%28+x%2F64*pi%29**8+*+255%2C+x%3D0+to+63
- * (0..63).each {|x| p ((sin(x/64.0*PI)**8)*255).to_i }
- */
-static const uint8_t breathing_table[64] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 4, 6, 10, 15, 23, 32, 44, 58, 74, 93, 113, 135, 157, 179, 199, 218, 233, 245, 252, 255, 252, 245, 233, 218, 199, 179, 157, 135, 113, 93, 74, 58, 44, 32, 23, 15, 10, 6, 4, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-
-void sleep_led_timer_callback(void) {
- /* Software PWM
- * timer:1111 1111 1111 1111
- * \_____/\/ \_______/____ count(0-255)
- * \ \______________ duration of step(4)
- * \__________________ index of step table(0-63)
- */
-
- // this works for cca 65536 irqs/sec
- static union {
- uint16_t row;
- struct {
- uint8_t count : 8;
- uint8_t duration : 2;
- uint8_t index : 6;
- } pwm;
- } timer = {.row = 0};
-
- timer.row++;
-
- // LED on
- if (timer.pwm.count == 0) {
- led_set(1 << USB_LED_CAPS_LOCK);
- }
- // LED off
- if (timer.pwm.count == breathing_table[timer.pwm.index]) {
- led_set(0);
- }
-}
-
-#endif /* common parts for known platforms */
-
-#if defined(KL2x) || defined(K20x) /* platform selection: familiar Kinetis chips */
-
-/* Use Low Power Timer (LPTMR) */
-# define TIMER_INTERRUPT_VECTOR KINETIS_LPTMR0_IRQ_VECTOR
-# define RESET_COUNTER LPTMR0->CSR |= LPTMRx_CSR_TCF
-
-/* LPTMR clock options */
-# define LPTMR_CLOCK_MCGIRCLK 0 /* 4MHz clock */
-# define LPTMR_CLOCK_LPO 1 /* 1kHz clock */
-# define LPTMR_CLOCK_ERCLK32K 2 /* external 32kHz crystal */
-# define LPTMR_CLOCK_OSCERCLK 3 /* output from OSC */
-
-/* Work around inconsistencies in Freescale naming */
-# if !defined(SIM_SCGC5_LPTMR)
-# define SIM_SCGC5_LPTMR SIM_SCGC5_LPTIMER
-# endif
-
-/* interrupt handler */
-OSAL_IRQ_HANDLER(TIMER_INTERRUPT_VECTOR) {
- OSAL_IRQ_PROLOGUE();
-
- sleep_led_timer_callback();
-
- /* Reset the counter */
- RESET_COUNTER;
-
- OSAL_IRQ_EPILOGUE();
-}
-
-/* Initialise the timer */
-void sleep_led_init(void) {
- /* Make sure the clock to the LPTMR is enabled */
- SIM->SCGC5 |= SIM_SCGC5_LPTMR;
- /* Reset LPTMR settings */
- LPTMR0->CSR = 0;
- /* Set the compare value */
- LPTMR0->CMR = 0; // trigger on counter value (i.e. every time)
-
-/* Set up clock source and prescaler */
-/* Software PWM
- * ______ ______ __
- * | ON |___OFF___| ON |___OFF___| ....
- * |<-------------->|<-------------->|<- ....
- * PWM period PWM period
- *
- * R interrupts/period[resolution]
- * F periods/second[frequency]
- * R * F interrupts/second
- */
-
-/* === OPTION 1 === */
-# if 0
- // 1kHz LPO
- // No prescaler => 1024 irqs/sec
- // Note: this is too slow for a smooth breathe
- LPTMR0->PSR = LPTMRx_PSR_PCS(LPTMR_CLOCK_LPO)|LPTMRx_PSR_PBYP;
-# endif /* OPTION 1 */
-
-/* === OPTION 2 === */
-# if 1
- // nMHz IRC (n=4 on KL25Z, KL26Z and K20x; n=2 or 8 on KL27Z)
- MCG->C2 |= MCG_C2_IRCS; // fast (4MHz) internal ref clock
-# if defined(KL27) // divide the 8MHz IRC by 2, to have the same MCGIRCLK speed as others
- MCG->MC |= MCG_MC_LIRC_DIV2_DIV2;
-# endif /* KL27 */
- MCG->C1 |= MCG_C1_IRCLKEN; // enable internal ref clock
- // to work in stop mode, also MCG_C1_IREFSTEN
- // Divide 4MHz by 2^N (N=6) => 62500 irqs/sec =>
- // => approx F=61, R=256, duration = 4
- LPTMR0->PSR = LPTMRx_PSR_PCS(LPTMR_CLOCK_MCGIRCLK) | LPTMRx_PSR_PRESCALE(6);
-# endif /* OPTION 2 */
-
-/* === OPTION 3 === */
-# if 0
- // OSC output (external crystal), usually 8MHz or 16MHz
- OSC0->CR |= OSC_CR_ERCLKEN; // enable ext ref clock
- // to work in stop mode, also OSC_CR_EREFSTEN
- // Divide by 2^N
- LPTMR0->PSR = LPTMRx_PSR_PCS(LPTMR_CLOCK_OSCERCLK)|LPTMRx_PSR_PRESCALE(7);
-# endif /* OPTION 3 */
- /* === END OPTIONS === */
-
- /* Interrupt on TCF set (compare flag) */
- nvicEnableVector(LPTMR0_IRQn, 2); // vector, priority
- LPTMR0->CSR |= LPTMRx_CSR_TIE;
-}
-
-void sleep_led_enable(void) {
- /* Enable the timer */
- LPTMR0->CSR |= LPTMRx_CSR_TEN;
-}
-
-void sleep_led_disable(void) {
- /* Disable the timer */
- LPTMR0->CSR &= ~LPTMRx_CSR_TEN;
-}
-
-void sleep_led_toggle(void) {
- /* Toggle the timer */
- LPTMR0->CSR ^= LPTMRx_CSR_TEN;
-}
-
-#elif defined(SLEEP_LED_GPT_DRIVER)
-
-static void gptTimerCallback(GPTDriver *gptp) {
- (void)gptp;
- sleep_led_timer_callback();
-}
-
-static const GPTConfig gptcfg = {1000000, gptTimerCallback, 0, 0};
-
-/* Initialise the timer */
-void sleep_led_init(void) { gptStart(&SLEEP_LED_GPT_DRIVER, &gptcfg); }
-
-void sleep_led_enable(void) { gptStartContinuous(&SLEEP_LED_GPT_DRIVER, gptcfg.frequency / 0xFFFF); }
-
-void sleep_led_disable(void) { gptStopTimer(&SLEEP_LED_GPT_DRIVER); }
-
-void sleep_led_toggle(void) { (SLEEP_LED_GPT_DRIVER.state == GPT_READY) ? sleep_led_enable() : sleep_led_disable(); }
-
-#else /* platform selection: not on familiar chips */
-
-void sleep_led_init(void) {}
-
-void sleep_led_enable(void) { led_set(1 << USB_LED_CAPS_LOCK); }
-
-void sleep_led_disable(void) { led_set(0); }
-
-void sleep_led_toggle(void) {
- // not implemented
-}
-
-#endif /* platform selection */
--
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