mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-24 20:13:39 +00:00
5540e25aeb
Add test case for new interface set_invert(). Signed-off-by: Kever Yang <kever.yang@rock-chips.com> Acked-by: Simon Glass <sjg@chromium.org> Fix typo in subject and build error in sandbox_pwm_set_invert(): Signed-off-by: Simon Glass <sjg@chromium.org>
91 lines
1.8 KiB
C
91 lines
1.8 KiB
C
/*
|
|
* Copyright (c) 2015 Google, Inc
|
|
* Written by Simon Glass <sjg@chromium.org>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <errno.h>
|
|
#include <pwm.h>
|
|
#include <asm/test.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
enum {
|
|
NUM_CHANNELS = 3,
|
|
};
|
|
|
|
struct sandbox_pwm_chan {
|
|
uint period_ns;
|
|
uint duty_ns;
|
|
bool enable;
|
|
bool polarity;
|
|
};
|
|
|
|
struct sandbox_pwm_priv {
|
|
struct sandbox_pwm_chan chan[NUM_CHANNELS];
|
|
};
|
|
|
|
static int sandbox_pwm_set_config(struct udevice *dev, uint channel,
|
|
uint period_ns, uint duty_ns)
|
|
{
|
|
struct sandbox_pwm_priv *priv = dev_get_priv(dev);
|
|
struct sandbox_pwm_chan *chan;
|
|
|
|
if (channel >= NUM_CHANNELS)
|
|
return -ENOSPC;
|
|
chan = &priv->chan[channel];
|
|
chan->period_ns = period_ns;
|
|
chan->duty_ns = duty_ns;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sandbox_pwm_set_enable(struct udevice *dev, uint channel,
|
|
bool enable)
|
|
{
|
|
struct sandbox_pwm_priv *priv = dev_get_priv(dev);
|
|
struct sandbox_pwm_chan *chan;
|
|
|
|
if (channel >= NUM_CHANNELS)
|
|
return -ENOSPC;
|
|
chan = &priv->chan[channel];
|
|
chan->enable = enable;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sandbox_pwm_set_invert(struct udevice *dev, uint channel,
|
|
bool polarity)
|
|
{
|
|
struct sandbox_pwm_priv *priv = dev_get_priv(dev);
|
|
struct sandbox_pwm_chan *chan;
|
|
|
|
if (channel >= NUM_CHANNELS)
|
|
return -ENOSPC;
|
|
chan = &priv->chan[channel];
|
|
chan->polarity = polarity;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct pwm_ops sandbox_pwm_ops = {
|
|
.set_config = sandbox_pwm_set_config,
|
|
.set_enable = sandbox_pwm_set_enable,
|
|
.set_invert = sandbox_pwm_set_invert,
|
|
};
|
|
|
|
static const struct udevice_id sandbox_pwm_ids[] = {
|
|
{ .compatible = "sandbox,pwm" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(warm_pwm_sandbox) = {
|
|
.name = "pwm_sandbox",
|
|
.id = UCLASS_PWM,
|
|
.of_match = sandbox_pwm_ids,
|
|
.ops = &sandbox_pwm_ops,
|
|
.priv_auto_alloc_size = sizeof(struct sandbox_pwm_priv),
|
|
};
|