M7350/bootable/bootloader/lk/app/clocktests/clock_tests.c

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2024-09-09 08:52:07 +00:00
/*
* Copyright (c) 2012, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of The Linux Foundation nor
* the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <debug.h>
#include <string.h>
#include <app.h>
#include <platform.h>
#include <kernel/thread.h>
#include <err.h>
#if defined(WITH_LIB_CONSOLE) && defined(DEBUG_CLOCK)
#include <lib/console.h>
#include <clock.h>
static void print_clock_list()
{
unsigned i;
struct clk_lookup *cl;
unsigned num;
struct clk_list *clock_list = clk_get_list();
if(!clock_list)
return;
cl = clock_list->clist;
num = clock_list->num;
if(!cl || !num)
return;
printf("Clock list:\n");
for(i=0; i < num; i++, cl++)
{
printf("%s\n", cl->con_id);
}
}
static int clock_measure(const char *id)
{
int ret = NO_ERROR;
struct clk *cp, *mcp;
unsigned long rate;
/* Get clk */
cp = clk_get(id);
if(!cp)
{
ret = ERR_NOT_VALID;
goto measure_error;
}
/* Get measure clk */
mcp = clk_get("measure");
if(!mcp)
{
ret = ERR_NOT_VALID;
goto measure_error;
}
/* Set parent clk */
clk_set_parent(mcp, cp);
rate = clk_get_rate(mcp);
printf("Clock %s is running at: %lu Hz.\n", id, rate);
measure_error:
return ret;
}
static int clock_tests(int argc, cmd_args *argv)
{
if (argc < 2) {
printf("not enough arguments:\n");
printf("%s <clock-name>\n", argv[0].str);
printf("%s ?\n", argv[0].str);
goto out;
}
if(argv[1].str[0] == '?')
print_clock_list();
else
clock_measure(argv[1].str);
out:
return 0;
}
STATIC_COMMAND_START
{ "test_clock", "Test Clock", &clock_tests },
STATIC_COMMAND_END(clocktests);
#endif
APP_START(clocktests)
APP_END