diff options
Diffstat (limited to 'drivers/iio/adc/ad7606.h')
| -rw-r--r-- | drivers/iio/adc/ad7606.h | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/drivers/iio/adc/ad7606.h b/drivers/iio/adc/ad7606.h index 5d12410f68e1..f9ef52131e74 100644 --- a/drivers/iio/adc/ad7606.h +++ b/drivers/iio/adc/ad7606.h @@ -12,12 +12,17 @@ * struct ad7606_chip_info - chip specific information * @channels: channel specification * @num_channels: number of channels - * @has_oversampling: whether the device has oversampling support + * @oversampling_avail pointer to the array which stores the available + * oversampling ratios. + * @oversampling_num number of elements stored in oversampling_avail array + * @os_req_reset some devices require a reset to update oversampling */ struct ad7606_chip_info { const struct iio_chan_spec *channels; unsigned int num_channels; - bool has_oversampling; + const unsigned int *oversampling_avail; + unsigned int oversampling_num; + bool os_req_reset; }; /** @@ -29,6 +34,11 @@ struct ad7606_chip_info { * @range voltage range selection, selects which scale to apply * @oversampling oversampling selection * @base_address address from where to read data in parallel operation + * @scale_avail pointer to the array which stores the available scales + * @num_scales number of elements stored in the scale_avail array + * @oversampling_avail pointer to the array which stores the available + * oversampling ratios. + * @num_os_ratios number of elements stored in oversampling_avail array * @lock protect sensor state from concurrent accesses to GPIOs * @gpio_convst GPIO descriptor for conversion start signal (CONVST) * @gpio_reset GPIO descriptor for device hard-reset @@ -50,6 +60,10 @@ struct ad7606_state { unsigned int range; unsigned int oversampling; void __iomem *base_address; + const unsigned int *scale_avail; + unsigned int num_scales; + const unsigned int *oversampling_avail; + unsigned int num_os_ratios; struct mutex lock; /* protect sensor state */ struct gpio_desc *gpio_convst; @@ -64,9 +78,9 @@ struct ad7606_state { /* * DMA (thus cache coherency maintenance) requires the * transfer buffers to live in their own cache lines. - * 8 * 16-bit samples + 64-bit timestamp + * 16 * 16-bit samples + 64-bit timestamp */ - unsigned short data[12] ____cacheline_aligned; + unsigned short data[20] ____cacheline_aligned; }; /** @@ -86,7 +100,8 @@ enum ad7606_supported_device_ids { ID_AD7605_4, ID_AD7606_8, ID_AD7606_6, - ID_AD7606_4 + ID_AD7606_4, + ID_AD7616, }; #ifdef CONFIG_PM_SLEEP |