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style: enforce coding standard — headers, @brief on #define, Doxygen on statics, remove _ prefix, max 8 lines per function

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This commit is contained in:
Kevin Thomas
2026-04-16 22:44:43 -04:00
parent 0833c32c94
commit 433263eac0
309 changed files with 10464 additions and 6668 deletions
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drivers/0x0d_timer_cbm/Src/rp2350_timer.c
+38 -29
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@@ -1,37 +1,46 @@
/**
******************************************************************************
* @file rp2350_timer.c
* @author Kevin Thomas
* @brief TIMER0 alarm driver implementation for RP2350.
*
* Configures the TIMER0 tick generator for 1 us resolution
* from the 12 MHz CLK_REF, then uses alarm 0 with NVIC IRQ
* to implement a repeating callback at a configurable period.
*
******************************************************************************
* @attention
*
* Copyright (c) 2026 Kevin Thomas.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
* @file rp2350_timer.c
* @brief TIMER0 alarm driver implementation for RP2350.
* @author Kevin Thomas
* @date 2026
*
* Configures the TIMER0 tick generator for 1 us resolution
* from the 12 MHz CLK_REF, then uses alarm 0 with NVIC IRQ
* to implement a repeating callback at a configurable period.
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "rp2350_timer.h"
/**
* @brief User callback and period stored for ISR re-arm.
*/
static timer_callback_t _user_callback;
static timer_callback_t user_callback;
/**
* @brief Alarm period in microseconds for re-arming.
*/
static uint32_t _alarm_period_us;
static uint32_t alarm_period_us;
/**
* @brief Clear the TIMER0 reset bit in the reset controller.
@@ -97,7 +106,7 @@ static void timer_enable_nvic(void)
static void timer_arm_alarm(void)
{
uint32_t target;
target = TIMER0->TIMERAWL + _alarm_period_us;
target = TIMER0->TIMERAWL + alarm_period_us;
TIMER0->ALARM0 = target;
}
@@ -115,8 +124,8 @@ void timer_tick_init(void)
void timer_alarm_start(uint32_t period_ms, timer_callback_t cb)
{
_user_callback = cb;
_alarm_period_us = period_ms * 1000U;
user_callback = cb;
alarm_period_us = period_ms * 1000U;
timer_enable_alarm_irq();
timer_enable_nvic();
timer_arm_alarm();
@@ -126,6 +135,6 @@ void TIMER0_IRQ_0_Handler(void)
{
TIMER0->INTR = TIMER_INTR_ALARM0_MASK;
timer_arm_alarm();
if (_user_callback)
_user_callback();
if (user_callback)
user_callback();
}