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V-USB suspend refactor (#11891)

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Ryan 2021-02-25 15:54:25 +11:00 committed by GitHub
parent 46f4422a87
commit 39694d5eb0
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6 changed files with 107 additions and 85 deletions
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13
quantum/mcu_selection.mk
View file

@ -334,9 +334,6 @@ ifneq (,$(filter $(MCU),atmega32a))
# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
# automatically to create a 32-bit value in your source code.
F_CPU ?= 12000000
# unsupported features for now
NO_SUSPEND_POWER_DOWN ?= yes
endif
ifneq (,$(filter $(MCU),atmega328p))
@ -351,9 +348,6 @@ ifneq (,$(filter $(MCU),atmega328p))
# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
# automatically to create a 32-bit value in your source code.
F_CPU ?= 16000000
# unsupported features for now
NO_SUSPEND_POWER_DOWN ?= yes
endif
ifneq (,$(filter $(MCU),atmega328))
@ -368,10 +362,6 @@ ifneq (,$(filter $(MCU),atmega328))
# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
# automatically to create a 32-bit value in your source code.
F_CPU ?= 16000000
# unsupported features for now
NO_UART ?= yes
NO_SUSPEND_POWER_DOWN ?= yes
endif
ifneq (,$(filter $(MCU),attiny85))
@ -383,7 +373,4 @@ ifneq (,$(filter $(MCU),attiny85))
# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
# automatically to create a 32-bit value in your source code.
F_CPU ?= 16500000
# unsupported features for now
NO_SUSPEND_POWER_DOWN ?= yes
endif

2
tmk_core/common/avr/sleep_led.c
View file

@ -90,7 +90,7 @@ void sleep_led_toggle(void) {
*
* (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
* https://www.wolframalpha.com/input/?i=sin%28x%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] PROGMEM = {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};

95
tmk_core/common/avr/suspend.c
View file

@ -4,7 +4,6 @@
#include <avr/interrupt.h>
#include "matrix.h"
#include "action.h"
#include "suspend_avr.h"
#include "suspend.h"
#include "timer.h"
#include "led.h"
@ -13,6 +12,9 @@
#ifdef PROTOCOL_LUFA
# include "lufa.h"
#endif
#ifdef PROTOCOL_VUSB
# include "vusb.h"
#endif
#ifdef BACKLIGHT_ENABLE
# include "backlight.h"
@ -52,7 +54,25 @@ __attribute__((weak)) void suspend_power_down_user(void) {}
*/
__attribute__((weak)) void suspend_power_down_kb(void) { suspend_power_down_user(); }
#ifndef NO_SUSPEND_POWER_DOWN
#if !defined(NO_SUSPEND_POWER_DOWN) && defined(WDT_vect)
// clang-format off
#define wdt_intr_enable(value) \
__asm__ __volatile__ ( \
"in __tmp_reg__,__SREG__" "\n\t" \
"cli" "\n\t" \
"wdr" "\n\t" \
"sts %0,%1" "\n\t" \
"out __SREG__,__tmp_reg__" "\n\t" \
"sts %0,%2" "\n\t" \
: /* no outputs */ \
: "M" (_SFR_MEM_ADDR(_WD_CONTROL_REG)), \
"r" (_BV(_WD_CHANGE_BIT) | _BV(WDE)), \
"r" ((uint8_t) ((value & 0x08 ? _WD_PS3_MASK : 0x00) | _BV(WDIE) | (value & 0x07))) \
: "r0" \
)
// clang-format on
/** \brief Power down MCU with watchdog timer
*
* wdto: watchdog timer timeout defined in <avr/wdt.h>
@ -74,37 +94,11 @@ static uint8_t wdt_timeout = 0;
* FIXME: needs doc
*/
static void power_down(uint8_t wdto) {
# ifdef PROTOCOL_LUFA
if (USB_DeviceState == DEVICE_STATE_Configured) return;
# endif
wdt_timeout = wdto;
// Watchdog Interrupt Mode
wdt_intr_enable(wdto);
# ifdef BACKLIGHT_ENABLE
backlight_set(0);
# endif
// Turn off LED indicators
uint8_t leds_off = 0;
# if defined(BACKLIGHT_CAPS_LOCK) && defined(BACKLIGHT_ENABLE)
if (is_backlight_enabled()) {
// Don't try to turn off Caps Lock indicator as it is backlight and backlight is already off
leds_off |= (1 << USB_LED_CAPS_LOCK);
}
# endif
led_set(leds_off);
# ifdef AUDIO_ENABLE
// This sometimes disables the start-up noise, so it's been disabled
// stop_all_notes();
# endif /* AUDIO_ENABLE */
# if defined(RGBLIGHT_SLEEP) && defined(RGBLIGHT_ENABLE)
rgblight_suspend();
# endif
suspend_power_down_kb();
// TODO: more power saving
// See PicoPower application note
// - I/O port input with pullup
@ -127,11 +121,47 @@ static void power_down(uint8_t wdto) {
* FIXME: needs doc
*/
void suspend_power_down(void) {
#ifdef PROTOCOL_LUFA
if (USB_DeviceState == DEVICE_STATE_Configured) return;
#endif
#ifdef PROTOCOL_VUSB
if (!vusb_suspended) return;
#endif
suspend_power_down_kb();
#ifndef NO_SUSPEND_POWER_DOWN
// Turn off backlight
# ifdef BACKLIGHT_ENABLE
backlight_set(0);
# endif
// Turn off LED indicators
uint8_t leds_off = 0;
# if defined(BACKLIGHT_CAPS_LOCK) && defined(BACKLIGHT_ENABLE)
if (is_backlight_enabled()) {
// Don't try to turn off Caps Lock indicator as it is backlight and backlight is already off
leds_off |= (1 << USB_LED_CAPS_LOCK);
}
# endif
led_set(leds_off);
// Turn off audio
# ifdef AUDIO_ENABLE
// This sometimes disables the start-up noise, so it's been disabled
// stop_all_notes();
# endif
// Turn off underglow
# if defined(RGBLIGHT_SLEEP) && defined(RGBLIGHT_ENABLE)
rgblight_suspend();
# endif
// Enter sleep state if possible (ie, the MCU has a watchdog timeout interrupt)
# if defined(WDT_vect)
power_down(WDTO_15MS);
# endif
#endif
}
__attribute__((weak)) void matrix_power_up(void) {}
@ -164,17 +194,24 @@ __attribute__((weak)) void suspend_wakeup_init_kb(void) { suspend_wakeup_init_us
void suspend_wakeup_init(void) {
// clear keyboard state
clear_keyboard();
// Turn on backlight
#ifdef BACKLIGHT_ENABLE
backlight_init();
#endif
// Restore LED indicators
led_set(host_keyboard_leds());
// Wake up underglow
#if defined(RGBLIGHT_SLEEP) && defined(RGBLIGHT_ENABLE)
rgblight_wakeup();
#endif
suspend_wakeup_init_kb();
}
#ifndef NO_SUSPEND_POWER_DOWN
#if !defined(NO_SUSPEND_POWER_DOWN) && defined(WDT_vect)
/* watchdog timeout */
ISR(WDT_vect) {
// compensate timer for sleep

25
tmk_core/common/avr/suspend_avr.h
View file

@ -1,25 +0,0 @@
#pragma once
#include <stdint.h>
#include <stdbool.h>
#include <avr/sleep.h>
#include <avr/wdt.h>
#include <avr/interrupt.h>
// clang-format off
#define wdt_intr_enable(value) \
__asm__ __volatile__ ( \
"in __tmp_reg__,__SREG__" "\n\t" \
"cli" "\n\t" \
"wdr" "\n\t" \
"sts %0,%1" "\n\t" \
"out __SREG__,__tmp_reg__" "\n\t" \
"sts %0,%2" "\n\t" \
: /* no outputs */ \
: "M" (_SFR_MEM_ADDR(_WD_CONTROL_REG)), \
"r" (_BV(_WD_CHANGE_BIT) | _BV(WDE)), \
"r" ((uint8_t) ((value & 0x08 ? _WD_PS3_MASK : 0x00) | \
_BV(WDIE) | (value & 0x07)) ) \
: "r0" \
)
// clang-format on

54
tmk_core/protocol/vusb/main.c
View file

@ -53,10 +53,10 @@ static void initForUsbConnectivity(void) {
usbDeviceConnect();
}
static void usb_remote_wakeup(void) {
static void vusb_send_remote_wakeup(void) {
cli();
int8_t ddr_orig = USBDDR;
uint8_t ddr_orig = USBDDR;
USBOUT |= (1 << USBMINUS);
USBDDR = ddr_orig | USBMASK;
USBOUT ^= USBMASK;
@ -70,6 +70,27 @@ static void usb_remote_wakeup(void) {
sei();
}
bool vusb_suspended = false;
static void vusb_suspend(void) {
vusb_suspended = true;
#ifdef SLEEP_LED_ENABLE
sleep_led_enable();
#endif
suspend_power_down();
}
static void vusb_wakeup(void) {
vusb_suspended = false;
suspend_wakeup_init();
#ifdef SLEEP_LED_ENABLE
sleep_led_disable();
#endif
}
/** \brief Setup USB
*
* FIXME: Needs doc
@ -87,9 +108,8 @@ static void setup_usb(void) {
*/
int main(void) __attribute__((weak));
int main(void) {
bool suspended = false;
#if USB_COUNT_SOF
uint16_t last_timer = timer_read();
uint16_t sof_timer = timer_read();
#endif
#ifdef CLKPR
@ -112,23 +132,24 @@ int main(void) {
while (1) {
#if USB_COUNT_SOF
if (usbSofCount != 0) {
suspended = false;
usbSofCount = 0;
last_timer = timer_read();
# ifdef SLEEP_LED_ENABLE
sleep_led_disable();
# endif
sof_timer = timer_read();
if (vusb_suspended) {
vusb_wakeup();
}
} else {
// Suspend when no SOF in 3ms-10ms(7.1.7.4 Suspending of USB1.1)
if (timer_elapsed(last_timer) > 5) {
suspended = true;
# ifdef SLEEP_LED_ENABLE
sleep_led_enable();
# endif
if (!vusb_suspended && timer_elapsed(sof_timer) > 5) {
vusb_suspend();
}
}
#endif
if (!suspended) {
if (vusb_suspended) {
vusb_suspend();
if (suspend_wakeup_condition()) {
vusb_send_remote_wakeup();
}
} else {
usbPoll();
// TODO: configuration process is inconsistent. it sometime fails.
@ -145,6 +166,7 @@ int main(void) {
raw_hid_task();
}
#endif
#ifdef CONSOLE_ENABLE
usbPoll();
@ -156,8 +178,6 @@ int main(void) {
// Run housekeeping
housekeeping_task_kb();
housekeeping_task_user();
} else if (suspend_wakeup_condition()) {
usb_remote_wakeup();
}
}
}

3
tmk_core/protocol/vusb/vusb.h
View file

@ -18,6 +18,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#pragma once
#include "host_driver.h"
#include <usbdrv/usbdrv.h>
typedef struct usbDescriptorHeader {
uchar bLength;
@ -119,5 +120,7 @@ typedef struct usbConfigurationDescriptor {
#define USB_STRING_LEN(s) (sizeof(usbDescriptorHeader_t) + ((s) << 1))
extern bool vusb_suspended;
host_driver_t *vusb_driver(void);
void vusb_transfer_keyboard(void);