From a81fc41c3eb99e8fc52aa734ee63e13c937aab81 Mon Sep 17 00:00:00 2001 From: JanHenrik Date: Sun, 19 Jan 2020 00:56:37 +0100 Subject: added blink example --- Blink/Drivers/CMSIS/RTOS2/Source/os_systick.c | 132 +++++++++++++++++ Blink/Drivers/CMSIS/RTOS2/Source/os_tick_gtim.c | 187 ++++++++++++++++++++++++ Blink/Drivers/CMSIS/RTOS2/Source/os_tick_ptim.c | 165 +++++++++++++++++++++ 3 files changed, 484 insertions(+) create mode 100644 Blink/Drivers/CMSIS/RTOS2/Source/os_systick.c create mode 100644 Blink/Drivers/CMSIS/RTOS2/Source/os_tick_gtim.c create mode 100644 Blink/Drivers/CMSIS/RTOS2/Source/os_tick_ptim.c (limited to 'Blink/Drivers/CMSIS/RTOS2/Source') diff --git a/Blink/Drivers/CMSIS/RTOS2/Source/os_systick.c b/Blink/Drivers/CMSIS/RTOS2/Source/os_systick.c new file mode 100644 index 0000000..f114caa --- /dev/null +++ b/Blink/Drivers/CMSIS/RTOS2/Source/os_systick.c @@ -0,0 +1,132 @@ +/**************************************************************************//** + * @file os_systick.c + * @brief CMSIS OS Tick SysTick implementation + * @version V1.0.1 + * @date 24. November 2017 + ******************************************************************************/ +/* + * Copyright (c) 2017-2017 ARM Limited. All rights reserved. + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the License); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an AS IS BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "os_tick.h" + +//lint -emacro((923,9078),SCB,SysTick) "cast from unsigned long to pointer" +#include "RTE_Components.h" +#include CMSIS_device_header + +#ifdef SysTick + +#ifndef SYSTICK_IRQ_PRIORITY +#define SYSTICK_IRQ_PRIORITY 0xFFU +#endif + +static uint8_t PendST; + +// Setup OS Tick. +__WEAK int32_t OS_Tick_Setup (uint32_t freq, IRQHandler_t handler) { + uint32_t load; + (void)handler; + + if (freq == 0U) { + //lint -e{904} "Return statement before end of function" + return (-1); + } + + load = (SystemCoreClock / freq) - 1U; + if (load > 0x00FFFFFFU) { + //lint -e{904} "Return statement before end of function" + return (-1); + } + + // Set SysTick Interrupt Priority +#if ((defined(__ARM_ARCH_8M_MAIN__) && (__ARM_ARCH_8M_MAIN__ != 0)) || \ + (defined(__CORTEX_M) && (__CORTEX_M == 7U))) + SCB->SHPR[11] = SYSTICK_IRQ_PRIORITY; +#elif (defined(__ARM_ARCH_8M_BASE__) && (__ARM_ARCH_8M_BASE__ != 0)) + SCB->SHPR[1] |= ((uint32_t)SYSTICK_IRQ_PRIORITY << 24); +#elif ((defined(__ARM_ARCH_7M__) && (__ARM_ARCH_7M__ != 0)) || \ + (defined(__ARM_ARCH_7EM__) && (__ARM_ARCH_7EM__ != 0))) + SCB->SHP[11] = SYSTICK_IRQ_PRIORITY; +#elif (defined(__ARM_ARCH_6M__) && (__ARM_ARCH_6M__ != 0)) + SCB->SHP[1] |= ((uint32_t)SYSTICK_IRQ_PRIORITY << 24); +#else +#error "Unknown ARM Core!" +#endif + + SysTick->CTRL = SysTick_CTRL_CLKSOURCE_Msk | SysTick_CTRL_TICKINT_Msk; + SysTick->LOAD = load; + SysTick->VAL = 0U; + + PendST = 0U; + + return (0); +} + +/// Enable OS Tick. +__WEAK void OS_Tick_Enable (void) { + + if (PendST != 0U) { + PendST = 0U; + SCB->ICSR = SCB_ICSR_PENDSTSET_Msk; + } + + SysTick->CTRL |= SysTick_CTRL_ENABLE_Msk; +} + +/// Disable OS Tick. +__WEAK void OS_Tick_Disable (void) { + + SysTick->CTRL &= ~SysTick_CTRL_ENABLE_Msk; + + if ((SCB->ICSR & SCB_ICSR_PENDSTSET_Msk) != 0U) { + SCB->ICSR = SCB_ICSR_PENDSTCLR_Msk; + PendST = 1U; + } +} + +// Acknowledge OS Tick IRQ. +__WEAK void OS_Tick_AcknowledgeIRQ (void) { + (void)SysTick->CTRL; +} + +// Get OS Tick IRQ number. +__WEAK int32_t OS_Tick_GetIRQn (void) { + return ((int32_t)SysTick_IRQn); +} + +// Get OS Tick clock. +__WEAK uint32_t OS_Tick_GetClock (void) { + return (SystemCoreClock); +} + +// Get OS Tick interval. +__WEAK uint32_t OS_Tick_GetInterval (void) { + return (SysTick->LOAD + 1U); +} + +// Get OS Tick count value. +__WEAK uint32_t OS_Tick_GetCount (void) { + uint32_t load = SysTick->LOAD; + return (load - SysTick->VAL); +} + +// Get OS Tick overflow status. +__WEAK uint32_t OS_Tick_GetOverflow (void) { + return ((SysTick->CTRL >> 16) & 1U); +} + +#endif // SysTick diff --git a/Blink/Drivers/CMSIS/RTOS2/Source/os_tick_gtim.c b/Blink/Drivers/CMSIS/RTOS2/Source/os_tick_gtim.c new file mode 100644 index 0000000..1778ab7 --- /dev/null +++ b/Blink/Drivers/CMSIS/RTOS2/Source/os_tick_gtim.c @@ -0,0 +1,187 @@ +/**************************************************************************//** + * @file os_tick_gtim.c + * @brief CMSIS OS Tick implementation for Generic Timer + * @version V1.0.1 + * @date 24. November 2017 + ******************************************************************************/ +/* + * Copyright (c) 2017 ARM Limited. All rights reserved. + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the License); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an AS IS BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "os_tick.h" +#include "irq_ctrl.h" + +#include "RTE_Components.h" +#include CMSIS_device_header + +#ifndef GTIM_IRQ_PRIORITY +#define GTIM_IRQ_PRIORITY 0xFFU +#endif + +#ifndef GTIM_IRQ_NUM +#define GTIM_IRQ_NUM SecurePhyTimer_IRQn +#endif + +// Timer interrupt pending flag +static uint8_t GTIM_PendIRQ; + +// Timer tick frequency +static uint32_t GTIM_Clock; + +// Timer load value +static uint32_t GTIM_Load; + +// Setup OS Tick. +int32_t OS_Tick_Setup (uint32_t freq, IRQHandler_t handler) { + uint32_t prio, bits; + + if (freq == 0U) { + return (-1); + } + + GTIM_PendIRQ = 0U; + + // Get timer clock +#ifdef SCTR_BASE + GTIM_Clock = *(uint32_t*)(SCTR_BASE+0x20); +#else + // FVP REFCLK CNTControl 100MHz + GTIM_Clock = 100000000UL; +#endif + + PL1_SetCounterFrequency(GTIM_Clock); + + // Calculate load value + GTIM_Load = (GTIM_Clock / freq) - 1U; + + // Disable Generic Timer and set load value + PL1_SetControl(0U); + PL1_SetLoadValue(GTIM_Load); + + // Disable corresponding IRQ + IRQ_Disable(GTIM_IRQ_NUM); + IRQ_ClearPending(GTIM_IRQ_NUM); + + // Determine number of implemented priority bits + IRQ_SetPriority(GTIM_IRQ_NUM, 0xFFU); + + prio = IRQ_GetPriority(GTIM_IRQ_NUM); + + // At least bits [7:4] must be implemented + if ((prio & 0xF0U) == 0U) { + return (-1); + } + + for (bits = 0; bits < 4; bits++) { + if ((prio & 0x01) != 0) { + break; + } + prio >>= 1; + } + + // Adjust configured priority to the number of implemented priority bits + prio = (GTIM_IRQ_PRIORITY << bits) & 0xFFUL; + + // Set Private Timer interrupt priority + IRQ_SetPriority(GTIM_IRQ_NUM, prio-1U); + + // Set edge-triggered IRQ + IRQ_SetMode(GTIM_IRQ_NUM, IRQ_MODE_TRIG_EDGE); + + // Register tick interrupt handler function + IRQ_SetHandler(GTIM_IRQ_NUM, handler); + + // Enable corresponding interrupt + IRQ_Enable(GTIM_IRQ_NUM); + + // Enable system counter and timer control +#ifdef SCTR_BASE + *(uint32_t*)SCTR_BASE |= 3U; +#endif + + // Enable timer control + PL1_SetControl(1U); + + return (0); +} + +/// Enable OS Tick. +void OS_Tick_Enable (void) { + uint32_t ctrl; + + // Set pending interrupt if flag set + if (GTIM_PendIRQ != 0U) { + GTIM_PendIRQ = 0U; + IRQ_SetPending (GTIM_IRQ_NUM); + } + + // Start the Private Timer + ctrl = PL1_GetControl(); + // Set bit: Timer enable + ctrl |= 1U; + PL1_SetControl(ctrl); +} + +/// Disable OS Tick. +void OS_Tick_Disable (void) { + uint32_t ctrl; + + // Stop the Private Timer + ctrl = PL1_GetControl(); + // Clear bit: Timer enable + ctrl &= ~1U; + PL1_SetControl(ctrl); + + // Remember pending interrupt flag + if (IRQ_GetPending(GTIM_IRQ_NUM) != 0) { + IRQ_ClearPending(GTIM_IRQ_NUM); + GTIM_PendIRQ = 1U; + } +} + +// Acknowledge OS Tick IRQ. +void OS_Tick_AcknowledgeIRQ (void) { + IRQ_ClearPending (GTIM_IRQ_NUM); + PL1_SetLoadValue(GTIM_Load); +} + +// Get OS Tick IRQ number. +int32_t OS_Tick_GetIRQn (void) { + return (GTIM_IRQ_NUM); +} + +// Get OS Tick clock. +uint32_t OS_Tick_GetClock (void) { + return (GTIM_Clock); +} + +// Get OS Tick interval. +uint32_t OS_Tick_GetInterval (void) { + return (GTIM_Load + 1U); +} + +// Get OS Tick count value. +uint32_t OS_Tick_GetCount (void) { + return (GTIM_Load - PL1_GetCurrentValue()); +} + +// Get OS Tick overflow status. +uint32_t OS_Tick_GetOverflow (void) { + CNTP_CTL_Type cntp_ctl; + cntp_ctl.w = PL1_GetControl(); + return (cntp_ctl.b.ISTATUS); +} diff --git a/Blink/Drivers/CMSIS/RTOS2/Source/os_tick_ptim.c b/Blink/Drivers/CMSIS/RTOS2/Source/os_tick_ptim.c new file mode 100644 index 0000000..ccd9cb6 --- /dev/null +++ b/Blink/Drivers/CMSIS/RTOS2/Source/os_tick_ptim.c @@ -0,0 +1,165 @@ +/**************************************************************************//** + * @file os_tick_ptim.c + * @brief CMSIS OS Tick implementation for Private Timer + * @version V1.0.2 + * @date 02. March 2018 + ******************************************************************************/ +/* + * Copyright (c) 2017-2018 Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: Apache-2.0 + * + * Licensed under the Apache License, Version 2.0 (the License); you may + * not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an AS IS BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "RTE_Components.h" +#include CMSIS_device_header + +#if defined(PTIM) + +#include "os_tick.h" +#include "irq_ctrl.h" + +#ifndef PTIM_IRQ_PRIORITY +#define PTIM_IRQ_PRIORITY 0xFFU +#endif + +static uint8_t PTIM_PendIRQ; // Timer interrupt pending flag + +// Setup OS Tick. +int32_t OS_Tick_Setup (uint32_t freq, IRQHandler_t handler) { + uint32_t load; + uint32_t prio; + uint32_t bits; + + if (freq == 0U) { + return (-1); + } + + PTIM_PendIRQ = 0U; + + // Private Timer runs with the system frequency + load = (SystemCoreClock / freq) - 1U; + + // Disable Private Timer and set load value + PTIM_SetControl (0U); + PTIM_SetLoadValue (load); + + // Disable corresponding IRQ + IRQ_Disable (PrivTimer_IRQn); + IRQ_ClearPending(PrivTimer_IRQn); + + // Determine number of implemented priority bits + IRQ_SetPriority (PrivTimer_IRQn, 0xFFU); + + prio = IRQ_GetPriority (PrivTimer_IRQn); + + // At least bits [7:4] must be implemented + if ((prio & 0xF0U) == 0U) { + return (-1); + } + + for (bits = 0; bits < 4; bits++) { + if ((prio & 0x01) != 0) { + break; + } + prio >>= 1; + } + + // Adjust configured priority to the number of implemented priority bits + prio = (PTIM_IRQ_PRIORITY << bits) & 0xFFUL; + + // Set Private Timer interrupt priority + IRQ_SetPriority(PrivTimer_IRQn, prio-1U); + + // Set edge-triggered IRQ + IRQ_SetMode(PrivTimer_IRQn, IRQ_MODE_TRIG_EDGE); + + // Register tick interrupt handler function + IRQ_SetHandler(PrivTimer_IRQn, handler); + + // Enable corresponding interrupt + IRQ_Enable (PrivTimer_IRQn); + + // Set bits: IRQ enable and Auto reload + PTIM_SetControl (0x06U); + + return (0); +} + +/// Enable OS Tick. +void OS_Tick_Enable (void) { + uint32_t ctrl; + + // Set pending interrupt if flag set + if (PTIM_PendIRQ != 0U) { + PTIM_PendIRQ = 0U; + IRQ_SetPending (PrivTimer_IRQn); + } + + // Start the Private Timer + ctrl = PTIM_GetControl(); + // Set bit: Timer enable + ctrl |= 1U; + PTIM_SetControl (ctrl); +} + +/// Disable OS Tick. +void OS_Tick_Disable (void) { + uint32_t ctrl; + + // Stop the Private Timer + ctrl = PTIM_GetControl(); + // Clear bit: Timer enable + ctrl &= ~1U; + PTIM_SetControl (ctrl); + + // Remember pending interrupt flag + if (IRQ_GetPending(PrivTimer_IRQn) != 0) { + IRQ_ClearPending (PrivTimer_IRQn); + PTIM_PendIRQ = 1U; + } +} + +// Acknowledge OS Tick IRQ. +void OS_Tick_AcknowledgeIRQ (void) { + PTIM_ClearEventFlag(); +} + +// Get OS Tick IRQ number. +int32_t OS_Tick_GetIRQn (void) { + return (PrivTimer_IRQn); +} + +// Get OS Tick clock. +uint32_t OS_Tick_GetClock (void) { + return (SystemCoreClock); +} + +// Get OS Tick interval. +uint32_t OS_Tick_GetInterval (void) { + return (PTIM_GetLoadValue() + 1U); +} + +// Get OS Tick count value. +uint32_t OS_Tick_GetCount (void) { + uint32_t load = PTIM_GetLoadValue(); + return (load - PTIM_GetCurrentValue()); +} + +// Get OS Tick overflow status. +uint32_t OS_Tick_GetOverflow (void) { + return (PTIM->ISR & 1); +} + +#endif // PTIM -- cgit