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Coding style fix for SYST registers.

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NIIBE Yutaka
2019-04-11 09:08:33 +09:00
parent 681a0055e4
commit f8880aafec
1 changed files with 16 additions and 12 deletions
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28
chopstx-cortex-m.c
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@@ -1,8 +1,8 @@
/* /*
* chopstx-cortex-m.c - Threads and only threads: Arch specific code * chopstx-cortex-m.c - Threads and only threads: Arch specific code
* for Cortex-M0/M3 * for Cortex-M0/M3/M4
* *
* Copyright (C) 2013, 2014, 2015, 2016, 2017, 2018 * Copyright (C) 2013, 2014, 2015, 2016, 2017, 2018, 2019
* Flying Stone Technology * Flying Stone Technology
* Author: NIIBE Yutaka <gniibe@fsij.org> * Author: NIIBE Yutaka <gniibe@fsij.org>
* *
@@ -106,30 +106,34 @@ struct chx_stack_regs {
* System tick * System tick
*/ */
/* SysTick registers. */ /* SysTick registers. */
static volatile uint32_t *const SYST_CSR = (uint32_t *)0xE000E010; struct SYST {
static volatile uint32_t *const SYST_RVR = (uint32_t *)0xE000E014; volatile uint32_t CSR;
static volatile uint32_t *const SYST_CVR = (uint32_t *)0xE000E018; volatile uint32_t RVR;
volatile uint32_t CVR;
const uint32_t CALIB;
};
static struct SYST *const SYST = (struct SYST *)0xE000E010;
static void static void
chx_systick_reset (void) chx_systick_reset (void)
{ {
*SYST_RVR = 0; SYST->RVR = 0;
*SYST_CVR = 0; SYST->CVR = 0;
*SYST_CSR = 7; SYST->CSR = 7;
} }
static void static void
chx_systick_reload (uint32_t ticks) chx_systick_reload (uint32_t ticks)
{ {
*SYST_RVR = ticks; SYST->RVR = ticks;
*SYST_CVR = 0; /* write (any) to clear the counter to reload. */ SYST->CVR = 0; /* write (any) to clear the counter to reload. */
*SYST_RVR = 0; SYST->RVR = 0;
} }
static uint32_t static uint32_t
chx_systick_get (void) chx_systick_get (void)
{ {
return *SYST_CVR; return SYST->CVR;
} }
static uint32_t usec_to_ticks (uint32_t usec) static uint32_t usec_to_ticks (uint32_t usec)