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62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
/*
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* Copyright (C) 2019 Thomas Stilwell <stilwellt@openlabs.co>
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup sys_shell_commands
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* @{
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*
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* @file
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* @brief Shell command to interact with the PM subsystem
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*
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* @author Thomas Stilwell <stilwellt@openlabs.co>
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*
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* @}
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*/
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#include <stdio.h>
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#include <string.h>
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#include "pm_layered.h"
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/* TODO deduplicate this definition with the one in sys/pm_layered/pm.c */
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typedef union {
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uint32_t val_u32;
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uint8_t val_u8[PM_NUM_MODES];
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} pm_blocker_t;
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extern volatile pm_blocker_t pm_blocker; /* sys/pm_layered/pm.c */
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static void _print_usage(void) {
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printf("usage: pm show: display current blockers for each power mode\n");
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}
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int _pm(int argc, char **argv)
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{
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if (argc != 2) {
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_print_usage();
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return 1;
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}
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if (strcmp(argv[1], "show")) {
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_print_usage();
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return 2;
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}
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uint8_t lowest_allowed_mode = 0;
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for (unsigned i = 0; i < PM_NUM_MODES; i++) {
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printf("mode %u blockers: %u \n", i, pm_blocker.val_u8[i]);
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if (pm_blocker.val_u8[i] == 1) {
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lowest_allowed_mode = i + 1;
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}
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}
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printf("lowest allowed mode: %u\n", lowest_allowed_mode);
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return 0;
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}
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