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cmd: Add a pwm command

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Add the command "pwm" for controlling the pwm channels. This
command provides pwm invert/config/enable/disable functionalities
via PWM uclass drivers

Signed-off-by: Pragnesh Patel <pragnesh.patel@sifive.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Pragnesh Patel
2020-12-22 11:30:05 +05:30
committed by Tom Rini
parent 2767d881f0
commit 9e9a530a61
7 changed files with 174 additions and 0 deletions
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1
test/cmd/Makefile
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@@ -4,4 +4,5 @@
obj-y += mem.o
obj-$(CONFIG_CMD_MEM_SEARCH) += mem_search.o
obj-$(CONFIG_CMD_PWM) += pwm.o
obj-y += setexpr.o

47
test/cmd/pwm.c Normal file
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@@ -0,0 +1,47 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Test for pwm command
*
* Copyright 2020 SiFive, Inc
*
* Authors:
* Pragnesh Patel <pragnesh.patel@sifive.com>
*/
#include <dm.h>
#include <dm/test.h>
#include <test/test.h>
#include <test/ut.h>
/* Basic test of 'pwm' command */
static int dm_test_pwm_cmd(struct unit_test_state *uts)
{
struct udevice *dev;
ut_assertok(uclass_get_device(UCLASS_PWM, 0, &dev));
ut_assertnonnull(dev);
ut_assertok(console_record_reset_enable());
/* pwm <invert> <pwm_dev_num> <channel> <polarity> */
ut_assertok(run_command("pwm invert 0 0 1", 0));
ut_assert_console_end();
ut_assertok(run_command("pwm invert 0 0 0", 0));
ut_assert_console_end();
/* pwm <config> <pwm_dev_num> <channel> <period_ns> <duty_ns> */
ut_assertok(run_command("pwm config 0 0 10 50", 0));
ut_assert_console_end();
/* pwm <enable/disable> <pwm_dev_num> <channel> */
ut_assertok(run_command("pwm enable 0 0", 0));
ut_assert_console_end();
ut_assertok(run_command("pwm disable 0 0", 0));
ut_assert_console_end();
return 0;
}
DM_TEST(dm_test_pwm_cmd, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_CONSOLE_REC);