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[bsp][bluetrum] validate AB32 ADC channels #11962

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[bsp][bluetrum] validate AB32 ADC channels #11962

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25 changes: 20 additions & 5 deletions bsp/bluetrum/libraries/hal_drivers/drv_adc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -41,18 +41,23 @@ static struct ab32_adc ab32_adc_obj[] =
#endif
};

static rt_err_t ab32_adc_enabled(struct rt_adc_device *device, rt_uint32_t channel, rt_bool_t enabled)
static rt_err_t ab32_adc_enabled(struct rt_adc_device *device, rt_int8_t channel, rt_bool_t enabled)
{
RT_ASSERT(device != RT_NULL);

if (channel < 0 || channel > 15)
{
return -RT_EINVAL;
}

hal_adc_enable(enabled);

return RT_EOK;
}

static rt_uint32_t ab32_adc_get_channel(rt_uint32_t channel)
static rt_int32_t ab32_adc_get_channel(rt_int8_t channel)
{
rt_uint32_t ab32_channel = 0;
rt_int32_t ab32_channel = 0;

switch (channel)
{
Expand Down Expand Up @@ -104,21 +109,31 @@ static rt_uint32_t ab32_adc_get_channel(rt_uint32_t channel)
case 15:
ab32_channel = ADC_CHANNEL_15;
break;
default:
ab32_channel = -RT_EINVAL;
break;
}

return ab32_channel;
}

static rt_err_t ab32_get_adc_value(struct rt_adc_device *device, rt_uint32_t channel, rt_uint32_t *value)
static rt_err_t ab32_get_adc_value(struct rt_adc_device *device, rt_int8_t channel, rt_uint32_t *value)
{
hal_sfr_t ab32_adc_handler;
rt_int32_t ab32_channel;

RT_ASSERT(device != RT_NULL);
RT_ASSERT(value != RT_NULL);

ab32_channel = ab32_adc_get_channel(channel);
if (ab32_channel < 0)
{
return ab32_channel;
}

ab32_adc_handler = device->parent.user_data;

hal_adc_start(ab32_adc_get_channel(channel));
hal_adc_start((rt_uint32_t)ab32_channel);
hal_adc_poll_for_conversion(1000);

*value = ab32_adc_handler[channel];
Expand Down
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