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1.定时器未完工版本。

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MacRsh
2023-11-25 23:37:24 +08:00
parent 58eae71ca1
commit 5eccfa5495
2 changed files with 76 additions and 7 deletions
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77
device/timer.c
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@@ -26,12 +26,26 @@ static int mr_timer_close(struct mr_dev *dev)
return ops->configure(timer, MR_DISABLE);
}
static ssize_t mr_timer_write(struct mr_dev *dev, int off, const void *buf, size_t size, int sync_or_async)
static ssize_t mr_timer_read(struct mr_dev *dev, int off, void *buf, size_t size, int async)
{
struct mr_timer *timer = (struct mr_timer *)dev;
struct mr_timer_ops *ops = (struct mr_timer_ops *)dev->drv->ops;
uint32_t *rd_buf = (uint32_t *)buf;
ssize_t rd_size = 0;
if (timer->config.mode == MR_TIMER_MODE_TIMING)
{
uint32_t time = 0;
}
}
static ssize_t mr_timer_write(struct mr_dev *dev, int off, const void *buf, size_t size, int async)
{
struct mr_timer *timer = (struct mr_timer *)dev;
struct mr_timer_ops *ops = (struct mr_timer_ops *)dev->drv->ops;
uint32_t *wr_buf = (uint32_t *)buf;
uint32_t data = 0;
ssize_t wr_size = 0;
if (timer->config.mode == MR_TIMER_MODE_TIMING)
@@ -51,11 +65,20 @@ static ssize_t mr_timer_write(struct mr_dev *dev, int off, const void *buf, size
/* Calculate reload value */
timer->reload = (uint32_t)(((float)timeout / 1000000.0f) * (float)timer->config.freq + 0.5f);
if (timer->reload == 0)
{
return MR_EINVAL;
}
ops->start(timer, timer->prescaler, timer->reload);
/* Start timer */
ops->start(timer, timer->prescaler, timer->period);
} else
{
mr_bits_clr(size, sizeof(*wr_buf) - 1);
for (wr_size = 0; wr_size < size; wr_size += sizeof(*wr_buf))
{
wr_buf++;
}
}
return wr_size;
@@ -117,7 +140,10 @@ static int mr_timer_ioctl(struct mr_dev *dev, int off, int cmd, void *args)
timer->config = *config;
/* Start timer if mode is PWM */
if (timer->config.mode == MR_TIMER_MODE_PWM)
if (timer->config.mode == MR_TIMER_MODE_TIMING)
{
timer->reload = 0;
} else
{
ops->start(timer, timer->prescaler, timer->period);
}
@@ -125,14 +151,53 @@ static int mr_timer_ioctl(struct mr_dev *dev, int off, int cmd, void *args)
}
return MR_EINVAL;
}
case MR_CTRL_TIMER_SET_CHANNEL_STATE:
{
if (args != MR_NULL)
{
int mode = *((int *)args);
/* Check offset is valid */
if (off < 0 || off >= 32)
{
return MR_EINVAL;
}
/* Check if the channel is enabled */
if (mode != mr_bits_is_set(timer->channel, (1 << off)))
{
int ret = ops->channel_configure(timer, off, mode);
if (ret == MR_EOK)
{
if (mode == MR_TIMER_STATE_ENABLE)
{
mr_bits_set(timer->channel, (1 << off));
} else
{
mr_bits_clr(timer->channel, (1 << off));
}
}
return ret;
}
return MR_EOK;
}
return MR_EINVAL;
}
case MR_CTRL_TIMER_GET_CHANNEL_STATE:
{
if (args != MR_NULL)
{
int *mode = (int *)args;
/* Check offset is valid */
if (off < 0 || off >= 32)
{
return MR_EINVAL;
}
*mode = mr_bits_is_set(timer->channel, (1 << off));
return MR_EOK;
}
return MR_EINVAL;
}