Remove hal

.vscode/tasks.json

@@ -1,21 +1,25 @@
 {
-    // See https://go.microsoft.com/fwlink/?LinkId=733558
-    // for the documentation about the tasks.json format
     "version": "2.0.0",
     "options": {
         "env": {
-            "PLATFORM": "nrf52",
-            // "PLATFORM": "posix",
             "APPLICATION": "blinky",
             // "APPLICATION": "spi",
             // "APPLICATION": "st7789_lcd",
+            // "APPLICATION": "sys_tick",
+            "${BUILD_CMD}": "eval docker run --env PLATFORM=${PLATFORM} --env APPLICATION=${APPLICATION} -t --rm -v '${workspaceFolder}':/work --user $(id -u):$(id -g) arm-none-eabi.buildenv",
         },
     },
+    "presentation": {
+        "focus": true,
+        "reveal": "always",
+        "panel": "shared",
+        "clear": true,
+    },
     "tasks": [
         {
             "label": "all",
             "type":"shell",
-            "command": "make all -j8",
+            "command": "${BUILD_CMD} make all -j8",
             "problemMatcher": {
                 "base": "$gcc",
                 "owner": "gcc",
@@ -49,7 +53,7 @@
         {
             "label": "clean",
             "type":"shell",
-            "command": "make clean -j8",
+            "command": "${BUILD_CMD} make clean -j8",
             "problemMatcher": {
                 "base": "$gcc",
                 "owner": "gcc",
@@ -66,7 +70,7 @@
         {
             "label": "distclean",
             "type":"shell",
-            "command": "make distclean",
+            "command": "${BUILD_CMD} make distclean",
             "problemMatcher": {
                 "base": "$gcc",
                 "owner": "gcc",
@@ -97,11 +101,5 @@
                 "isDefault": true
             }
         }
-    ],
-    "presentation": {
-        "focus": true,
-        "reveal": "always",
-        "panel": "shared",
-        "clear": true,
-    }
+    ]
 }

Makefile

@@ -3,6 +3,11 @@
 APPLICATION ?= blinky
 
 PLATFORM ?= nrf52
+
+ifneq "$(findstring $(PLATFORM), nrf52)" ""
+CORE = cm4
+endif
+
 TARGET_FILE ?= $(APPLICATION).elf
 
 CC = $(CROSS_COMPILE)gcc
@@ -25,6 +30,7 @@ C_SRCS += $(wildcard $(SRC_DIR)/application/$(APPLICATION)/*.c)
 C_OBJS = $(patsubst $(SRC_DIR)%,$(OBJ_DIR)%,$(patsubst %.c,%.c.o,$(C_SRCS)))
 
 CC_SRCS = $(wildcard $(SRC_DIR)/*.cc)
+CC_SRCS += $(wildcard $(SRC_DIR)/platform/$(CORE)/*.cc)
 CC_SRCS += $(wildcard $(SRC_DIR)/platform/$(PLATFORM)/*.cc)
 CC_SRCS += $(wildcard $(SRC_DIR)/application/$(APPLICATION)/*.cc)
 CC_OBJS = $(patsubst $(SRC_DIR)%,$(OBJ_DIR)%,$(patsubst %.cc,%.cc.o,$(CC_SRCS)))

interfaces/interrupt_interface.h

@@ -0,0 +1,16 @@
+#ifndef __INTERFACES_INTERRUPT_INTERFACE_H__
+#define __INTERFACES_INTERRUPT_INTERFACE_H__
+
+namespace pinetime::interfaces {
+
+class InterruptInterface
+{
+    public:
+        virtual void handle() = 0;
+        virtual void enable() = 0;
+        virtual void disable() = 0;
+};
+
+}
+
+#endif

src/application/blinky/main.cc

@@ -1,7 +1,12 @@
 #include <array>
 
 #include "delay.h"
-#include "platform/hal.h"
+
+#include "platform/nrf52/gpio.h"
+#include "platform/nrf52/InterruptHandler.h"
+#include "platform/nrf52/InterruptGuardian.h"
+
+using namespace pinetime::platform::nrf52;
 
 enum {
     PIN_NUMBER_LED_1 = 17,
@@ -10,18 +15,20 @@ enum {
     PIN_NUMBER_LED_4 = 20
 };
 
-hal::Gpio led_1(PIN_NUMBER_LED_1);
-hal::Gpio led_2(PIN_NUMBER_LED_2);
-hal::Gpio led_3(PIN_NUMBER_LED_3);
-hal::Gpio led_4(PIN_NUMBER_LED_4);
+Gpio led_1(PIN_NUMBER_LED_1);
+Gpio led_2(PIN_NUMBER_LED_2);
+Gpio led_3(PIN_NUMBER_LED_3);
+Gpio led_4(PIN_NUMBER_LED_4);
 
-std::array<hal::Gpio *, 4> leds = {&led_1, &led_2, &led_3, &led_4};
+std::array<Gpio *, 4> leds = {&led_1, &led_2, &led_3, &led_4};
+
+InterruptGuardian InterruptGuardian::instance;
 
 int main(void)
 {
     while(true) {
         for(auto it = std::begin(leds); it != std::end(leds); ++it) {
-            hal::Gpio * tmp = *it;
+            Gpio * tmp = *it;
             tmp->toggle();
             delay_ms(500);
         }

src/application/spi/main.cc

@@ -1,11 +1,17 @@
 
 #include "delay.h"
-#include "platform/hal.h"
 
-using namespace hal;
+#include "platform/nrf52/gpio.h"
+#include "platform/nrf52/spi.h"
+#include "platform/nrf52/InterruptHandler.h"
+#include "platform/nrf52/InterruptGuardian.h"
+
+using namespace pinetime::platform::nrf52;
 
 const uint8_t buf[] = "Test";
 
+InterruptGuardian InterruptGuardian::instance;
+
 int main(void)
 {
     Gpio led_1(17);

src/application/st7789_lcd/main.cc

@@ -1,18 +1,25 @@
 #include "delay.h"
 
-#include "platform/hal.h"
+#include "platform/nrf52/gpio.h"
+#include "platform/nrf52/spi.h"
+#include "platform/nrf52/InterruptHandler.h"
+#include "platform/nrf52/InterruptGuardian.h"
 #include "st7789.h"
 
-hal::Gpio led_1(17);
+using namespace pinetime::platform::nrf52;
 
-hal::Gpio lcd_reset(26);
-hal::Gpio lcd_data_command(18);
-hal::Gpio lcd_backlight(23);
-hal::Gpio lcd_chip_select(25);
-hal::Spi lcd_spi(0, 2, 3, 4, lcd_chip_select);
+Gpio led_1(17);
+
+Gpio lcd_reset(26);
+Gpio lcd_data_command(18);
+Gpio lcd_backlight(23);
+Gpio lcd_chip_select(25);
+Spi lcd_spi(0, 2, 3, 4, lcd_chip_select);
 
 St7789 lcd(lcd_spi, lcd_reset, lcd_data_command, lcd_backlight);
 
+InterruptGuardian InterruptGuardian::instance;
+
 int main(void)
 {
     lcd.init();

src/application/sys_tick/main.cc

@@ -0,0 +1,47 @@
+#include <array>
+
+extern "C" {
+    #include "nrf52.h"
+}
+
+#include "platform/nrf52/gpio.h"
+#include "platform/nrf52/InterruptHandler.h"
+#include "platform/nrf52/InterruptGuardian.h"
+#include "platform/cm4/SystemTick.h"
+
+using namespace pinetime::platform::nrf52;
+
+enum {
+    PIN_NUMBER_LED_1 = 17,
+    PIN_NUMBER_LED_2 = 18,
+    PIN_NUMBER_LED_3 = 19,
+    PIN_NUMBER_LED_4 = 20
+};
+
+Gpio led_1(PIN_NUMBER_LED_1);
+Gpio led_2(PIN_NUMBER_LED_2);
+Gpio led_3(PIN_NUMBER_LED_3);
+Gpio led_4(PIN_NUMBER_LED_4);
+
+std::array<Gpio *, 4> leds = {&led_1, &led_2, &led_3, &led_4};
+
+InterruptGuardian InterruptGuardian::instance;
+
+pinetime::platform::cm4::SystemTick ticker;
+
+int main(void)
+{
+    ticker.enable();
+    uint32_t last_tick = 0;
+    while(true) {
+        for(auto it = std::begin(leds); it != std::end(leds); ++it) {
+            uint32_t tick = ticker.tick() / 1000;
+            if(tick != last_tick) {
+                Gpio * tmp = *it;
+                tmp->toggle();
+            }
+            last_tick = tick;
+        }
+    }
+    return 0;
+}

src/platform/cm4/SystemTick.cc

@@ -0,0 +1,35 @@
+extern "C" {
+    #include "nrf52.h"
+}
+
+#include "platform/cm4/SystemTick.h"
+#include "platform/nrf52/InterruptGuardian.h"
+
+using namespace pinetime::platform::cm4;
+using namespace pinetime::platform::nrf52;
+
+SystemTick::SystemTick()
+    : InterruptHandler(InterruptGuardian::Nrf52IrqN::SYS_TICK_IRQ)
+    , sys_tick(0)
+{
+}
+
+void SystemTick::handle()
+{
+    this->sys_tick++;
+}
+
+void SystemTick::enable()
+{
+    SysTick_Config(SystemCoreClock / 1000);
+}
+
+void SystemTick::disable()
+{
+    SysTick->CTRL = 0;
+}
+
+uint32_t SystemTick::tick()
+{
+    return this->sys_tick;
+}

src/platform/cm4/SystemTick.h

@@ -0,0 +1,23 @@
+#ifndef __PLATFORM_CM4_SYSTEMTICK_H__
+#define __PLATFORM_CM4_SYSTEMTICK_H__
+
+#include "platform/nrf52/InterruptHandler.h"
+
+namespace pinetime::platform::cm4 {
+
+class SystemTick : public pinetime::platform::nrf52::InterruptHandler
+{
+    public:
+        SystemTick();
+        void handle();
+        void enable();
+        void disable();
+        uint32_t tick();
+
+    private:
+        uint32_t sys_tick;
+};
+
+}
+
+#endif

src/platform/hal.h

@@ -1,11 +0,0 @@
-#ifndef __PLATFORM_GPIO_H__
-#define __PLATFORM_GPIO_H__
-
-#if defined(PLATFORM_nrf52)
-    #include "platform/nrf52/gpio.h"
-    #include "platform/nrf52/spi.h"
-
-    namespace hal = pinetime::platform::nrf52;
-#endif
-
-#endif

src/platform/nrf52/InterruptGuardian.cc

@@ -0,0 +1,13 @@
+#include "platform/nrf52/InterruptHandler.h"
+#include "platform/nrf52/InterruptGuardian.h"
+
+using namespace pinetime::platform::nrf52;
+
+InterruptGuardian::InterruptGuardian()
+{
+}
+
+void InterruptGuardian::register_handler(Nrf52IrqN irq_nr, InterruptHandler &handler)
+{
+    this->nrf52_vector[irq_nr] = &handler;
+}

src/platform/nrf52/InterruptGuardian.h

@@ -0,0 +1,82 @@
+#ifndef __PINETIME_PLATFORM_NRF52_INTERRUPTGUARDIAN_H__
+#define __PINETIME_PLATFORM_NRF52_INTERRUPTGUARDIAN_H__
+
+#include <array>
+
+extern "C" {
+    #include "nrf52.h"
+}
+
+namespace pinetime::platform::nrf52 {
+
+class InterruptGuardian
+{
+public:
+    InterruptGuardian();
+
+    enum Nrf52IrqN {
+        // CM4 interrupts
+        RESET_IRQ = 0,           //!< -15  Reset Vector, invoked on Power up and warm reset
+        NON_MASKABLE_INT_IRQ,    //!< -14  Non maskable Interrupt, cannot be stopped or preempted
+        HARD_FAULT_IRQ,          //!< -13  Hard Fault, all classes of Fault
+        MEMORY_MANAGEMENT_IRQ,   //!< -12  Memory Management, MPU mismatch, including Access Violation and No Match
+        BUS_FAULT_IRQ,           //!< -11  Bus Fault, Pre-Fetch-, Memory Access Fault, other address/memory related Fault
+        USAGE_FAULT_IRQ,         //!< -10  Usage Fault, i.e. Undef Instruction, Illegal State Transition
+        SV_CALL_IRQ,             //!< -5 System Service Call via SVC instruction
+        DEBUG_MONITOR_IRQ,       //!< -4 Debug Monitor
+        PEND_SV_IRQ,             //!< -2 Pendable request for system service
+        SYS_TICK_IRQ,            //!< -1 System Tick Timer
+
+        // nrf52 interrupts
+        POWER_CLOCK_IRQn,                       //!< 0 POWER_CLOCK
+        RADIO_IRQn,                             //!< 1 RADIO
+        UARTE0_UART0_IRQn,                      //!< 2 UARTE0_UART0
+        SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQn, //!< 3 SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0
+        SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQn, //!< 4 SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1
+        NFCT_IRQn,                              //!< 5 NFCT
+        GPIOTE_IRQn,                            //!< 6  GPIOTE
+        SAADC_IRQn,                             //!< 7  SAADC
+        TIMER0_IRQn,                            //!< 8  TIMER0
+        TIMER1_IRQn,                            //!< 9  TIMER1
+        TIMER2_IRQn,                            //!< 10 TIMER2
+        RTC0_IRQn,                              //!< 11 RTC0
+        TEMP_IRQn,                              //!< 12 TEMP
+        RNG_IRQn,                               //!< 13 RNG
+        ECB_IRQn,                               //!< 14 ECB
+        CCM_AAR_IRQn,                           //!< 15 CCM_AAR
+        WDT_IRQn,                               //!< 16 WDT
+        RTC1_IRQn,                              //!< 17 RTC1
+        QDEC_IRQn,                              //!< 18 QDEC
+        COMP_LPCOMP_IRQn,                       //!< 19 COMP_LPCOMP
+        SWI0_EGU0_IRQn,                         //!< 20 SWI0_EGU0
+        SWI1_EGU1_IRQn,                         //!< 21 SWI1_EGU1
+        SWI2_EGU2_IRQn,                         //!< 22 SWI2_EGU2
+        SWI3_EGU3_IRQn,                         //!< 23 SWI3_EGU3
+        SWI4_EGU4_IRQn,                         //!< 24 SWI4_EGU4
+        SWI5_EGU5_IRQn,                         //!< 25 SWI5_EGU5
+        TIMER3_IRQn,                            //!< 26 TIMER3
+        TIMER4_IRQn,                            //!< 27 TIMER4
+        PWM0_IRQn,                              //!< 28 PWM0
+        PDM_IRQn,                               //!< 29 PDM
+        MWU_IRQn,                               //!< 32 MWU
+        PWM1_IRQn,                              //!< 33 PWM1
+        PWM2_IRQn,                              //!< 34 PWM2
+        SPIM2_SPIS2_SPI2_IRQn,                  //!< 35 SPIM2_SPIS2_SPI2
+        RTC2_IRQn,                              //!< 36 RTC2
+        I2S_IRQn,                               //!< 37 I2S
+        FPU_IRQn                                //!< 38 FPU
+    };
+    enum {
+        NRF52_HANDLER_COUNT = FPU_IRQn + 1,
+    };
+
+    void register_handler(Nrf52IrqN irq_nr, InterruptHandler &);
+
+    static InterruptGuardian instance;
+
+    std::array<InterruptHandler *, NRF52_HANDLER_COUNT> nrf52_vector;
+};
+
+}
+
+#endif

src/platform/nrf52/InterruptHandler.cc

@@ -0,0 +1,27 @@
+#include <assert.h>
+
+#include "platform/nrf52/InterruptHandler.h"
+#include "platform/nrf52/InterruptGuardian.h"
+
+using namespace pinetime::platform::nrf52;
+
+InterruptHandler::InterruptHandler(uint32_t irq_nr)
+{
+    InterruptGuardian::instance.register_handler(static_cast<InterruptGuardian::Nrf52IrqN>(irq_nr), *this);
+}
+
+void InterruptHandler::handle()
+{
+    asm volatile("nop");
+    assert(false);
+}
+
+void InterruptHandler::enable()
+{
+    assert(false);
+}
+
+void InterruptHandler::disable()
+{
+    assert(false);
+}

src/platform/nrf52/InterruptHandler.h

@@ -0,0 +1,22 @@
+#ifndef __PINETIME_PLATFORM_NRF52_INTERRUPTHANDLER_H__
+#define __PINETIME_PLATFORM_NRF52_INTERRUPTHANDLER_H__
+
+#include <cstdint>
+
+#include "interrupt_interface.h"
+
+namespace pinetime::platform::nrf52 {
+
+class InterruptHandler : public pinetime::interfaces::InterruptInterface
+{
+    public:
+        InterruptHandler(uint32_t);
+
+        void handle() override;
+        void enable() override;
+        void disable() override;
+};
+
+}
+
+#endif

src/platform/nrf52/low_level_interrupt.cc

@@ -0,0 +1,66 @@
+#include <cassert>
+
+#include "platform/nrf52/InterruptHandler.h"
+#include "platform/nrf52/InterruptGuardian.h"
+
+extern "C" {
+    void NMI_Handler(void);
+    void HardFault_Handler(void);
+    void MemoryManagement_Handler(void);
+    void BusFault_Handler(void);
+    void UsageFault_Handler(void);
+    void SVC_Handler(void);
+    void DebugMon_Handler(void);
+    void PendSV_Handler(void);
+    void SysTick_Handler(void);
+
+    void POWER_CLOCK_IRQHandler(void);
+    void RADIO_IRQHandler(void);
+    void UARTE0_UART0_IRQHandler(void);
+    void SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQHandler(void);
+    void SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQHandler(void);
+    void NFCT_IRQHandler(void);
+    void GPIOTE_IRQHandler(void);
+    void SAADC_IRQHandler(void);
+    void TIMER0_IRQHandler(void);
+    void TIMER1_IRQHandler(void);
+    void TIMER2_IRQHandler(void);
+    void RTC0_IRQHandler(void);
+    void TEMP_IRQHandler(void);
+    void RNG_IRQHandler(void);
+    void ECB_IRQHandler(void);
+    void CCM_AAR_IRQHandler(void);
+    void WDT_IRQHandler(void);
+    void RTC1_IRQHandler(void);
+    void QDEC_IRQHandler(void);
+    void COMP_LPCOMP_IRQHandler(void);
+    void SWI0_EGU0_IRQHandler(void);
+    void SWI1_EGU1_IRQHandler(void);
+    void SWI2_EGU2_IRQHandler(void);
+    void SWI3_EGU3_IRQHandler(void);
+    void SWI4_EGU4_IRQHandler(void);
+    void SWI5_EGU5_IRQHandler(void);
+    void TIMER3_IRQHandler(void);
+    void TIMER4_IRQHandler(void);
+    void PWM0_IRQHandler(void);
+    void PDM_IRQHandler(void);
+    void MWU_IRQHandler(void);
+    void PWM1_IRQHandler(void);
+    void PWM2_IRQHandler(void);
+    void SPIM2_SPIS2_SPI2_IRQHandler(void);
+    void RTC2_IRQHandler(void);
+    void I2S_IRQHandler(void);
+    void FPU_IRQHandler(void);
+}
+
+using namespace pinetime::platform::nrf52;
+
+void SysTick_Handler(void)
+{
+    uint32_t irq_nr = InterruptGuardian::Nrf52IrqN::SYS_TICK_IRQ;
+    InterruptHandler *h = InterruptGuardian::instance.nrf52_vector[irq_nr];
+
+    assert(h != nullptr);
+
+    h->handle();
+}