1.适配标准CONFIG命令。
This commit is contained in:
97
device/adc.c
97
device/adc.c
@@ -10,6 +10,45 @@
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#ifdef MR_USING_ADC
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static int adc_channel_set_state(struct mr_adc *adc, int channel, int state)
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{
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struct mr_adc_ops *ops = (struct mr_adc_ops *)adc->dev.drv->ops;
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/* Check channel is valid */
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if (channel < 0 || channel >= 32)
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{
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return MR_EINVAL;
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}
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/* Configure the channel */
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int ret = ops->channel_configure(adc, channel, state);
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if (ret != MR_EOK)
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{
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return ret;
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}
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/* Enable or disable the channel */
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if (state == MR_ADC_STATE_ENABLE)
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{
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mr_bits_set(adc->channel, (1 << channel));
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} else
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{
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mr_bits_clr(adc->channel, (1 << channel));
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}
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return MR_EOK;
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}
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static int adc_channel_get_state(struct mr_adc *adc, int channel)
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{
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/* Check channel is valid */
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if (channel < 0 || channel >= 32)
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{
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return MR_EINVAL;
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}
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return mr_bits_is_set(adc->channel, (1 << channel));
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}
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static int mr_adc_open(struct mr_dev *dev)
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{
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struct mr_adc *adc = (struct mr_adc *)dev;
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@@ -66,52 +105,54 @@ static int mr_adc_ioctl(struct mr_dev *dev, int off, int cmd, void *args)
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switch (cmd)
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{
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case MR_CTL_ADC_SET_CONFIG:
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{
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if (args != MR_NULL)
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{
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struct mr_adc_config config = *((struct mr_adc_config *)args);
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return adc_channel_set_state(adc, off, config.channel_state);
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}
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return MR_EINVAL;
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}
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case MR_CTL_ADC_SET_CHANNEL_STATE:
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{
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if (args != MR_NULL)
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{
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int state = *((int *)args);
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/* Check offset is valid */
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if (off < 0 || off >= 32)
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{
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return MR_EINVAL;
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}
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/* Check if the channel is enabled */
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if (state != mr_bits_is_set(adc->channel, (1 << off)))
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{
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int ret = ops->channel_configure(adc, off, state);
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if (ret == MR_EOK)
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{
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if (state == MR_ADC_STATE_ENABLE)
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{
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mr_bits_set(adc->channel, (1 << off));
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} else
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{
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mr_bits_clr(adc->channel, (1 << off));
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}
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}
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return ret;
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}
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return MR_EOK;
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return adc_channel_set_state(adc, off, state);
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}
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return MR_EINVAL;
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}
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case MR_CTL_ADC_GET_CONFIG:
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{
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if (args != MR_NULL)
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{
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struct mr_adc_config *config = (struct mr_adc_config *)args;
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int ret = adc_channel_get_state(adc, off);
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if (ret < 0)
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{
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return ret;
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}
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config->channel_state = ret;
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return MR_EOK;
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}
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}
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case MR_CTL_ADC_GET_CHANNEL_STATE:
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{
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if (args != MR_NULL)
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{
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int *state = (int *)args;
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/* Check offset is valid */
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if (off < 0 || off >= 32)
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int ret = adc_channel_get_state(adc, off);
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if (ret < 0)
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{
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return MR_EINVAL;
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return ret;
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}
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*state = mr_bits_is_set(adc->channel, (1 << off));
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*state = ret;
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return MR_EOK;
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}
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return MR_EINVAL;
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