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authorJeff Epler <jepler@gmail.com>2019-11-18 08:22:41 -0600
committerJeff Epler <jepler@gmail.com>2019-11-18 11:01:23 -0600
commit7f744a2369a5036cadfa05575da1704f709c98bb (patch)
tree62b0c1d21d75910076a6c4b8d11a0c55861267aa /shared-module
parent45d1b290ee13ee4080e9718909c33053583314b8 (diff)
Supervisor: move most of systick to the supervisor
This code is shared by most parts, except where not all the #ifdefs inside the tick function were present in all ports. This mostly would have broken gamepad tick support on non-samd ports. The "ms32" and "ms64" variants of the tick functions are introduced because there is no 64-bit atomic read. Disabling interrupts avoids a low probability bug where milliseconds could be off by ~49.5 days once every ~49.5 days (2^32 ms). Avoiding disabling interrupts when only the low 32 bits are needed is a minor optimization. Testing performed: on metro m4 express, USB still works and time.monotonic_ns() still counts up
Diffstat (limited to 'shared-module')
-rw-r--r--shared-module/displayio/Display.c11
-rw-r--r--shared-module/displayio/EPaperDisplay.c5
-rw-r--r--shared-module/displayio/display_core.c5
-rw-r--r--shared-module/network/__init__.c4
-rw-r--r--shared-module/usb_hid/Device.c5
5 files changed, 18 insertions, 12 deletions
diff --git a/shared-module/displayio/Display.c b/shared-module/displayio/Display.c
index 862d2cf59..11db0f8ff 100644
--- a/shared-module/displayio/Display.c
+++ b/shared-module/displayio/Display.c
@@ -35,6 +35,7 @@
#include "shared-module/displayio/__init__.h"
#include "shared-module/displayio/display_core.h"
#include "supervisor/shared/display.h"
+#include "supervisor/shared/tick.h"
#include "supervisor/usb.h"
#include <stdint.h>
@@ -313,7 +314,7 @@ uint16_t common_hal_displayio_display_get_rotation(displayio_display_obj_t* self
bool common_hal_displayio_display_refresh(displayio_display_obj_t* self, uint32_t target_ms_per_frame, uint32_t maximum_ms_per_real_frame) {
if (!self->auto_refresh && !self->first_manual_refresh) {
- uint64_t current_time = ticks_ms;
+ uint64_t current_time = supervisor_ticks_ms64();
uint32_t current_ms_since_real_refresh = current_time - self->core.last_refresh;
// Test to see if the real frame time is below our minimum.
if (current_ms_since_real_refresh > maximum_ms_per_real_frame) {
@@ -327,7 +328,7 @@ bool common_hal_displayio_display_refresh(displayio_display_obj_t* self, uint32_
}
uint32_t remaining_time = target_ms_per_frame - (current_ms_since_real_refresh % target_ms_per_frame);
// We're ahead of the game so wait until we align with the frame rate.
- while (ticks_ms - self->last_refresh_call < remaining_time) {
+ while (supervisor_ticks_ms64() - self->last_refresh_call < remaining_time) {
RUN_BACKGROUND_TASKS;
}
}
@@ -350,20 +351,20 @@ STATIC void _update_backlight(displayio_display_obj_t* self) {
if (!self->auto_brightness || self->updating_backlight) {
return;
}
- if (ticks_ms - self->last_backlight_refresh < 100) {
+ if (supervisor_ticks_ms64() - self->last_backlight_refresh < 100) {
return;
}
// TODO(tannewt): Fade the backlight based on it's existing value and a target value. The target
// should account for ambient light when possible.
common_hal_displayio_display_set_brightness(self, 1.0);
- self->last_backlight_refresh = ticks_ms;
+ self->last_backlight_refresh = supervisor_ticks_ms64();
}
void displayio_display_background(displayio_display_obj_t* self) {
_update_backlight(self);
- if (self->auto_refresh && (ticks_ms - self->core.last_refresh) > self->native_ms_per_frame) {
+ if (self->auto_refresh && (supervisor_ticks_ms64() - self->core.last_refresh) > self->native_ms_per_frame) {
_refresh_display(self);
}
}
diff --git a/shared-module/displayio/EPaperDisplay.c b/shared-module/displayio/EPaperDisplay.c
index df1d5162b..ad2559a83 100644
--- a/shared-module/displayio/EPaperDisplay.c
+++ b/shared-module/displayio/EPaperDisplay.c
@@ -35,6 +35,7 @@
#include "shared-bindings/time/__init__.h"
#include "shared-module/displayio/__init__.h"
#include "supervisor/shared/display.h"
+#include "supervisor/shared/tick.h"
#include "supervisor/usb.h"
#include <stdint.h>
@@ -175,7 +176,7 @@ uint32_t common_hal_displayio_epaperdisplay_get_time_to_refresh(displayio_epaper
return 0;
}
// Refresh at seconds per frame rate.
- uint32_t elapsed_time = ticks_ms - self->core.last_refresh;
+ uint32_t elapsed_time = supervisor_ticks_ms64() - self->core.last_refresh;
if (elapsed_time > self->milliseconds_per_frame) {
return 0;
}
@@ -339,7 +340,7 @@ void displayio_epaperdisplay_background(displayio_epaperdisplay_obj_t* self) {
bool busy = common_hal_digitalio_digitalinout_get_value(&self->busy);
refresh_done = busy != self->busy_state;
} else {
- refresh_done = ticks_ms - self->core.last_refresh > self->refresh_time;
+ refresh_done = supervisor_ticks_ms64() - self->core.last_refresh > self->refresh_time;
}
if (refresh_done) {
self->refreshing = false;
diff --git a/shared-module/displayio/display_core.c b/shared-module/displayio/display_core.c
index a73ea81d1..658daa8d6 100644
--- a/shared-module/displayio/display_core.c
+++ b/shared-module/displayio/display_core.c
@@ -35,6 +35,7 @@
#include "shared-bindings/time/__init__.h"
#include "shared-module/displayio/__init__.h"
#include "supervisor/shared/display.h"
+#include "supervisor/shared/tick.h"
#include <stdint.h>
#include <string.h>
@@ -281,7 +282,7 @@ void displayio_display_core_set_region_to_update(displayio_display_core_t* self,
}
void displayio_display_core_start_refresh(displayio_display_core_t* self) {
- self->last_refresh = ticks_ms;
+ self->last_refresh = supervisor_ticks_ms64();
}
void displayio_display_core_finish_refresh(displayio_display_core_t* self) {
@@ -289,7 +290,7 @@ void displayio_display_core_finish_refresh(displayio_display_core_t* self) {
displayio_group_finish_refresh(self->current_group);
}
self->full_refresh = false;
- self->last_refresh = ticks_ms;
+ self->last_refresh = supervisor_ticks_ms64();
}
void release_display_core(displayio_display_core_t* self) {
diff --git a/shared-module/network/__init__.c b/shared-module/network/__init__.c
index 96648b260..925e9a2a3 100644
--- a/shared-module/network/__init__.c
+++ b/shared-module/network/__init__.c
@@ -31,6 +31,8 @@
#include "py/mphal.h"
#include "py/mperrno.h"
+#include "supervisor/shared/tick.h"
+
#include "shared-bindings/random/__init__.h"
#include "shared-module/network/__init__.h"
@@ -53,7 +55,7 @@ void network_module_deinit(void) {
void network_module_background(void) {
static uint32_t next_tick = 0;
- uint32_t this_tick = ticks_ms;
+ uint32_t this_tick = supervisor_ticks_ms32();
if (this_tick < next_tick) return;
next_tick = this_tick + 1000;
diff --git a/shared-module/usb_hid/Device.c b/shared-module/usb_hid/Device.c
index bed7d163f..8744f2ed3 100644
--- a/shared-module/usb_hid/Device.c
+++ b/shared-module/usb_hid/Device.c
@@ -30,6 +30,7 @@
#include "shared-bindings/usb_hid/Device.h"
#include "shared-module/usb_hid/Device.h"
#include "supervisor/shared/translate.h"
+#include "supervisor/shared/tick.h"
#include "tusb.h"
uint8_t common_hal_usb_hid_device_get_usage_page(usb_hid_device_obj_t *self) {
@@ -46,8 +47,8 @@ void common_hal_usb_hid_device_send_report(usb_hid_device_obj_t *self, uint8_t*
}
// Wait until interface is ready, timeout = 2 seconds
- uint64_t end_ticks = ticks_ms + 2000;
- while ( (ticks_ms < end_ticks) && !tud_hid_ready() ) {
+ uint64_t end_ticks = supervisor_ticks_ms64() + 2000;
+ while ( (supervisor_ticks_ms64() < end_ticks) && !tud_hid_ready() ) {
RUN_BACKGROUND_TASKS;
}