diff options
Diffstat (limited to 'drivers/iio/adc/ad7606.h')
| -rw-r--r-- | drivers/iio/adc/ad7606.h | 37 |
1 files changed, 33 insertions, 4 deletions
diff --git a/drivers/iio/adc/ad7606.h b/drivers/iio/adc/ad7606.h index 8778ffe515b3..7a044b499cfe 100644 --- a/drivers/iio/adc/ad7606.h +++ b/drivers/iio/adc/ad7606.h @@ -10,6 +10,36 @@ #define AD760X_MAX_CHANNELS 16 +#define AD7616_CONFIGURATION_REGISTER 0x02 +#define AD7616_OS_MASK GENMASK(4, 2) +#define AD7616_BURST_MODE BIT(6) +#define AD7616_SEQEN_MODE BIT(5) +#define AD7616_RANGE_CH_A_ADDR_OFF 0x04 +#define AD7616_RANGE_CH_B_ADDR_OFF 0x06 +/* + * Range of channels from a group are stored in 2 registers. + * 0, 1, 2, 3 in a register followed by 4, 5, 6, 7 in second register. + * For channels from second group(8-15) the order is the same, only with + * an offset of 2 for register address. + */ +#define AD7616_RANGE_CH_ADDR(ch) ((ch) >> 2) +/* The range of the channel is stored in 2 bits */ +#define AD7616_RANGE_CH_MSK(ch) (0b11 << (((ch) & 0b11) * 2)) +#define AD7616_RANGE_CH_MODE(ch, mode) ((mode) << ((((ch) & 0b11)) * 2)) + +#define AD7606_CONFIGURATION_REGISTER 0x02 +#define AD7606_SINGLE_DOUT 0x00 + +/* + * Range for AD7606B channels are stored in registers starting with address 0x3. + * Each register stores range for 2 channels(4 bits per channel). + */ +#define AD7606_RANGE_CH_MSK(ch) (GENMASK(3, 0) << (4 * ((ch) & 0x1))) +#define AD7606_RANGE_CH_MODE(ch, mode) \ + ((GENMASK(3, 0) & (mode)) << (4 * ((ch) & 0x1))) +#define AD7606_RANGE_CH_ADDR(ch) (0x03 + ((ch) >> 1)) +#define AD7606_OS_MODE 0x08 + #define AD760X_CHANNEL(num, mask_sep, mask_type, mask_all, bits) { \ .type = IIO_VOLTAGE, \ .indexed = 1, \ @@ -71,6 +101,7 @@ struct ad7606_state; typedef int (*ad7606_scale_setup_cb_t)(struct iio_dev *indio_dev, struct iio_chan_spec *chan, int ch); +typedef int (*ad7606_sw_setup_cb_t)(struct iio_dev *indio_dev); /** * struct ad7606_chip_info - chip specific information @@ -80,6 +111,7 @@ typedef int (*ad7606_scale_setup_cb_t)(struct iio_dev *indio_dev, * @num_channels: number of channels * @num_adc_channels the number of channels the ADC actually inputs. * @scale_setup_cb: callback to setup the scales for each channel + * @sw_setup_cb: callback to setup the software mode if available. * @oversampling_avail pointer to the array which stores the available * oversampling ratios. * @oversampling_num number of elements stored in oversampling_avail array @@ -94,6 +126,7 @@ struct ad7606_chip_info { unsigned int num_adc_channels; unsigned int num_channels; ad7606_scale_setup_cb_t scale_setup_cb; + ad7606_sw_setup_cb_t sw_setup_cb; const unsigned int *oversampling_avail; unsigned int oversampling_num; bool os_req_reset; @@ -206,10 +239,6 @@ struct ad7606_bus_ops { int (*reg_write)(struct ad7606_state *st, unsigned int addr, unsigned int val); - int (*write_mask)(struct ad7606_state *st, - unsigned int addr, - unsigned long mask, - unsigned int val); int (*update_scan_mode)(struct iio_dev *indio_dev, const unsigned long *scan_mask); u16 (*rd_wr_cmd)(int addr, char isWriteOp); }; |