Begin to carve out platform/protocol API - Single main loop (#13843)

* Begin to carve out platform/protocol API

* Fix up after rebase

build_keyboard.mk

@@ -338,9 +338,11 @@ ifneq ("$(wildcard $(KEYMAP_PATH)/config.h)","")
 endif
 
 # project specific files
-SRC += $(KEYBOARD_SRC) \
+SRC += \
+    $(KEYBOARD_SRC) \
     $(KEYMAP_C) \
-    $(QUANTUM_SRC)
+    $(QUANTUM_SRC) \
+    $(QUANTUM_DIR)/main.c \
 
 # Optimize size but this may cause error "relocation truncated to fit"
 #EXTRALDFLAGS = -Wl,--relax

quantum/main.c

@@ -0,0 +1,41 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "keyboard.h"
+
+void platform_setup(void);
+
+void protocol_setup(void);
+void protocol_init(void);
+void protocol_task(void);
+
+/** \brief Main
+ *
+ * FIXME: Needs doc
+ */
+int main(void) __attribute__((weak));
+int main(void) {
+    platform_setup();
+    protocol_setup();
+
+    protocol_init();
+
+    /* Main loop */
+    while (true) {
+        protocol_task();
+        housekeeping_task();
+    }
+}

tmk_core/common.mk

@@ -12,6 +12,7 @@ TMK_COMMON_SRC +=	$(COMMON_DIR)/host.c \
 	$(COMMON_DIR)/report.c \
 	$(COMMON_DIR)/sync_timer.c \
 	$(COMMON_DIR)/usb_util.c \
+	$(PLATFORM_COMMON_DIR)/platform.c \
 	$(PLATFORM_COMMON_DIR)/suspend.c \
 	$(PLATFORM_COMMON_DIR)/timer.c \
 	$(PLATFORM_COMMON_DIR)/bootloader.c \

tmk_core/common/arm_atsam/platform.c

@@ -0,0 +1,21 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "platform_deps.h"
+
+void platform_setup(void) {
+    // do nothing
+}

tmk_core/common/avr/platform.c

@@ -0,0 +1,21 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "platform_deps.h"
+
+void platform_setup(void) {
+    // do nothing
+}

tmk_core/common/chibios/platform.c

@@ -0,0 +1,22 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "platform_deps.h"
+
+void platform_setup(void) {
+    halInit();
+    chSysInit();
+}

tmk_core/common/test/platform.c

@@ -0,0 +1,21 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "platform_deps.h"
+
+void platform_setup(void) {
+    // do nothing
+}

tmk_core/protocol/chibios.mk

@@ -3,7 +3,7 @@ CHIBIOS_DIR = $(PROTOCOL_DIR)/chibios
 
 
 SRC += $(CHIBIOS_DIR)/usb_main.c
-SRC += $(CHIBIOS_DIR)/main.c
+SRC += $(CHIBIOS_DIR)/chibios.c
 SRC += usb_descriptor.c
 SRC += $(CHIBIOS_DIR)/usb_driver.c
 SRC += $(CHIBIOS_DIR)/usb_util.c

tmk_core/protocol/chibios/chibios.c

@@ -138,18 +138,14 @@ void boardInit(void) {
     board_init();
 }
 
-/* Main thread
- */
-int main(void) {
-    /* ChibiOS/RT init */
-    halInit();
-    chSysInit();
-
+void protocol_setup(void) {
     // TESTING
     // chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
 
     keyboard_setup();
+}
 
+void protocol_init(void) {
     /* Init USB */
     usb_event_queue_init();
     init_usb_driver(&USB_DRIVER);
@@ -207,9 +203,9 @@ int main(void) {
 #endif
 
     print("Keyboard start.\n");
+}
 
-    /* Main loop */
-    while (true) {
+void protocol_task(void) {
     usb_event_queue_task();
 
 #if !defined(NO_USB_STARTUP_CHECK)
@@ -256,8 +252,4 @@ int main(void) {
 #ifdef RAW_ENABLE
     raw_hid_task();
 #endif
-
-        // Run housekeeping
-        housekeeping_task();
-    }
 }

tmk_core/protocol/lufa/lufa.c

@@ -1033,18 +1033,16 @@ static void setup_usb(void) {
     USB_Device_EnableSOFEvents();
 }
 
-/** \brief Main
- *
- * FIXME: Needs doc
- */
-int main(void) __attribute__((weak));
-int main(void) {
+void protocol_setup(void) {
 #ifdef MIDI_ENABLE
     setup_midi();
 #endif
 
     setup_mcu();
     keyboard_setup();
+}
+
+void protocol_init(void) {
     setup_usb();
     sei();
 
@@ -1078,7 +1076,9 @@ int main(void) {
 #endif
 
     print("Keyboard start.\n");
-    while (1) {
+}
+
+void protocol_task(void) {
 #if !defined(NO_USB_STARTUP_CHECK)
     if (USB_DeviceState == DEVICE_STATE_Suspended) {
         print("[s]");
@@ -1125,10 +1125,6 @@ int main(void) {
 #if !defined(INTERRUPT_CONTROL_ENDPOINT)
     USB_USBTask();
 #endif
-
-        // Run housekeeping
-        housekeeping_task();
-    }
 }
 
 uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue, const uint16_t wIndex, const void **const DescriptorAddress) { return get_usb_descriptor(wValue, wIndex, DescriptorAddress); }

tmk_core/protocol/vusb.mk

@@ -3,7 +3,7 @@ VUSB_DIR = protocol/vusb
 # Path to the V-USB library
 VUSB_PATH = $(LIB_PATH)/vusb
 
-SRC += $(VUSB_DIR)/main.c \
+SRC += $(VUSB_DIR)/protocol.c \
 	$(VUSB_DIR)/vusb.c \
 	$(VUSB_DIR)/usb_util.c \
 	$(VUSB_PATH)/usbdrv/usbdrv.c \

tmk_core/protocol/vusb/protocol.c

@@ -99,14 +99,11 @@ static void vusb_wakeup(void) {
  */
 static void setup_usb(void) { initForUsbConnectivity(); }
 
-/** \brief Main
- *
- * FIXME: Needs doc
- */
-int main(void) __attribute__((weak));
-int main(void) {
+uint16_t sof_timer = 0;
+
+void protocol_setup(void) {
 #if USB_COUNT_SOF
-    uint16_t sof_timer = timer_read();
+    sof_timer = timer_read();
 #endif
 
 #ifdef CLKPR
@@ -115,9 +112,14 @@ int main(void) {
     clock_prescale_set(clock_div_1);
 #endif
     keyboard_setup();
+}
+
+void protocol_init(void) {
     setup_usb();
     sei();
+
     keyboard_init();
+
     host_set_driver(vusb_driver());
 
     wait_ms(50);
@@ -125,8 +127,9 @@ int main(void) {
 #ifdef SLEEP_LED_ENABLE
     sleep_led_init();
 #endif
+}
 
-    while (1) {
+void protocol_task(void) {
 #if USB_COUNT_SOF
     if (usbSofCount != 0) {
         usbSofCount = 0;
@@ -171,9 +174,5 @@ int main(void) {
             console_task();
         }
 #endif
-
-            // Run housekeeping
-            housekeeping_task();
-        }
     }
 }