diff options
Diffstat (limited to 'drivers/staging/iio/adc/max1363.h')
| -rw-r--r-- | drivers/staging/iio/adc/max1363.h | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/drivers/staging/iio/adc/max1363.h b/drivers/staging/iio/adc/max1363.h deleted file mode 100644 index c746918683f1..000000000000 --- a/drivers/staging/iio/adc/max1363.h +++ /dev/null @@ -1,177 +0,0 @@ -#ifndef _MAX1363_H_ -#define _MAX1363_H_ - -#define MAX1363_SETUP_BYTE(a) ((a) | 0x80) - -/* There is a fair bit more defined here than currently - * used, but the intention is to support everything these - * chips do in the long run */ - -/* see data sheets */ -/* max1363 and max1236, max1237, max1238, max1239 */ -#define MAX1363_SETUP_AIN3_IS_AIN3_REF_IS_VDD 0x00 -#define MAX1363_SETUP_AIN3_IS_REF_EXT_TO_REF 0x20 -#define MAX1363_SETUP_AIN3_IS_AIN3_REF_IS_INT 0x40 -#define MAX1363_SETUP_AIN3_IS_REF_REF_IS_INT 0x60 -#define MAX1363_SETUP_POWER_UP_INT_REF 0x10 -#define MAX1363_SETUP_POWER_DOWN_INT_REF 0x00 - -/* think about includeing max11600 etc - more settings */ -#define MAX1363_SETUP_EXT_CLOCK 0x08 -#define MAX1363_SETUP_INT_CLOCK 0x00 -#define MAX1363_SETUP_UNIPOLAR 0x00 -#define MAX1363_SETUP_BIPOLAR 0x04 -#define MAX1363_SETUP_RESET 0x00 -#define MAX1363_SETUP_NORESET 0x02 -/* max1363 only - though don't care on others. - * For now monitor modes are not implemented as the relevant - * line is not connected on my test board. - * The definitions are here as I intend to add this soon. - */ -#define MAX1363_SETUP_MONITOR_SETUP 0x01 - -/* Specific to the max1363 */ -#define MAX1363_MON_RESET_CHAN(a) (1 << ((a) + 4)) -#define MAX1363_MON_INT_ENABLE 0x01 - -/* defined for readability reasons */ -/* All chips */ -#define MAX1363_CONFIG_BYTE(a) ((a)) - -#define MAX1363_CONFIG_SE 0x01 -#define MAX1363_CONFIG_DE 0x00 -#define MAX1363_CONFIG_SCAN_TO_CS 0x00 -#define MAX1363_CONFIG_SCAN_SINGLE_8 0x20 -#define MAX1363_CONFIG_SCAN_MONITOR_MODE 0x40 -#define MAX1363_CONFIG_SCAN_SINGLE_1 0x60 -/* max123{6-9} only */ -#define MAX1236_SCAN_MID_TO_CHANNEL 0x40 - -/* max1363 only - merely part of channel selects or don't care for others*/ -#define MAX1363_CONFIG_EN_MON_MODE_READ 0x18 - -#define MAX1363_CHANNEL_SEL(a) ((a) << 1) - -/* max1363 strictly 0x06 - but doesn't matter */ -#define MAX1363_CHANNEL_SEL_MASK 0x1E -#define MAX1363_SCAN_MASK 0x60 -#define MAX1363_SE_DE_MASK 0x01 - -#define MAX1363_MAX_CHANNELS 25 -/** - * struct max1363_mode - scan mode information - * @conf: The corresponding value of the configuration register - * @modemask: Bit mask corresponding to channels enabled in this mode - */ -struct max1363_mode { - int8_t conf; - DECLARE_BITMAP(modemask, MAX1363_MAX_CHANNELS); -}; - -/* This must be maintained along side the max1363_mode_table in max1363_core */ -enum max1363_modes { - /* Single read of a single channel */ - _s0, _s1, _s2, _s3, _s4, _s5, _s6, _s7, _s8, _s9, _s10, _s11, - /* Differential single read */ - d0m1, d2m3, d4m5, d6m7, d8m9, d10m11, - d1m0, d3m2, d5m4, d7m6, d9m8, d11m10, - /* Scan to channel and mid to channel where overlapping */ - s0to1, s0to2, s2to3, s0to3, s0to4, s0to5, s0to6, - s6to7, s0to7, s6to8, s0to8, s6to9, - s0to9, s6to10, s0to10, s6to11, s0to11, - /* Differential scan to channel and mid to channel where overlapping */ - d0m1to2m3, d0m1to4m5, d0m1to6m7, d6m7to8m9, - d0m1to8m9, d6m7to10m11, d0m1to10m11, d1m0to3m2, - d1m0to5m4, d1m0to7m6, d7m6to9m8, d1m0to9m8, - d7m6to11m10, d1m0to11m10, -}; - -/** - * struct max1363_chip_info - chip specifc information - * @name: indentification string for chip - * @bits: accuracy of the adc in bits - * @int_vref_mv: the internal reference voltage - * @info: iio core function callbacks structure - * @mode_list: array of available scan modes - * @num_modes: the number of scan modes available - * @default_mode: the scan mode in which the chip starts up - * @channel: channel specification - * @num_channels: number of channels - */ -struct max1363_chip_info { - const struct iio_info *info; - const struct iio_chan_spec *channels; - int num_channels; - const enum max1363_modes *mode_list; - enum max1363_modes default_mode; - u16 int_vref_mv; - u8 num_modes; - u8 bits; -}; - -/** - * struct max1363_state - driver instance specific data - * @client: i2c_client - * @setupbyte: cache of current device setup byte - * @configbyte: cache of current device config byte - * @chip_info: chip model specific constants, available modes etc - * @current_mode: the scan mode of this chip - * @requestedmask: a valid requested set of channels - * @reg: supply regulator - * @monitor_on: whether monitor mode is enabled - * @monitor_speed: parameter corresponding to device monitor speed setting - * @mask_high: bitmask for enabled high thresholds - * @mask_low: bitmask for enabled low thresholds - * @thresh_high: high threshold values - * @thresh_low: low threshold values - */ -struct max1363_state { - struct i2c_client *client; - u8 setupbyte; - u8 configbyte; - const struct max1363_chip_info *chip_info; - const struct max1363_mode *current_mode; - u32 requestedmask; - struct regulator *reg; - - /* Using monitor modes and buffer at the same time is - currently not supported */ - bool monitor_on; - unsigned int monitor_speed:3; - u8 mask_high; - u8 mask_low; - /* 4x unipolar first then the fours bipolar ones */ - s16 thresh_high[8]; - s16 thresh_low[8]; -}; - -const struct max1363_mode -*max1363_match_mode(const unsigned long *mask, - const struct max1363_chip_info *ci); - -int max1363_set_scan_mode(struct max1363_state *st); - -#ifdef CONFIG_MAX1363_RING_BUFFER -int max1363_update_scan_mode(struct iio_dev *indio_dev, - const unsigned long *scan_mask); -int max1363_register_ring_funcs_and_init(struct iio_dev *indio_dev); -void max1363_ring_cleanup(struct iio_dev *indio_dev); - -#else /* CONFIG_MAX1363_RING_BUFFER */ -int max1363_update_scan_mode(struct iio_dev *indio_dev, - const long *scan_mask) -{ - return 0; -} - -static inline int -max1363_register_ring_funcs_and_init(struct iio_dev *indio_dev) -{ - return 0; -} - -static inline void max1363_ring_cleanup(struct iio_dev *indio_dev) -{ -} -#endif /* CONFIG_MAX1363_RING_BUFFER */ -#endif /* _MAX1363_H_ */ |