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ec400c9fab
The regulator API contains a range of features for stubbing itself out when not in use and for transparently restricting the actual effect of regulator API calls where they can't be supported on a particular system so that drivers don't need to individually implement this. Simplify the driver slightly by making use of this idiom. The only in tree user is ecovec24 which does not use the regulator API. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: Éric Piel <eric.piel@tremplin-utc.net> Cc: Ilkka Koskinen <ilkka.koskinen@nokia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
127 lines
5 KiB
C
127 lines
5 KiB
C
#ifndef __LIS3LV02D_H_
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#define __LIS3LV02D_H_
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/**
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* struct lis3lv02d_platform_data - lis3 chip family platform data
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* @click_flags: Click detection unit configuration
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* @click_thresh_x: Click detection unit x axis threshold
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* @click_thresh_y: Click detection unit y axis threshold
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* @click_thresh_z: Click detection unit z axis threshold
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* @click_time_limit: Click detection unit time parameter
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* @click_latency: Click detection unit latency parameter
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* @click_window: Click detection unit window parameter
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* @irq_cfg: On chip irq source and type configuration (click /
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* data available / wake up, open drain, polarity)
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* @irq_flags1: Additional irq triggering flags for irq channel 0
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* @irq_flags2: Additional irq triggering flags for irq channel 1
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* @duration1: Wake up unit 1 duration parameter
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* @duration2: Wake up unit 2 duration parameter
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* @wakeup_flags: Wake up unit 1 flags
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* @wakeup_thresh: Wake up unit 1 threshold value
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* @wakeup_flags2: Wake up unit 2 flags
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* @wakeup_thresh2: Wake up unit 2 threshold value
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* @hipass_ctrl: High pass filter control (enable / disable, cut off
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* frequency)
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* @axis_x: Sensor orientation remapping for x-axis
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* @axis_y: Sensor orientation remapping for y-axis
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* @axis_z: Sensor orientation remapping for z-axis
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* @driver_features: Enable bits for different features. Disabled by default
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* @default_rate: Default sampling rate. 0 means reset default
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* @setup_resources: Interrupt line setup call back function
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* @release_resources: Interrupt line release call back function
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* @st_min_limits[3]: Selftest acceptance minimum values
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* @st_max_limits[3]: Selftest acceptance maximum values
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* @irq2: Irq line 2 number
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*
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* Platform data is used to setup the sensor chip. Meaning of the different
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* chip features can be found from the data sheet. It is publicly available
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* at www.st.com web pages. Currently the platform data is used
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* only for the 8 bit device. The 8 bit device has two wake up / free fall
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* detection units and click detection unit. There are plenty of ways to
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* configure the chip which makes is quite hard to explain deeper meaning of
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* the fields here. Behaviour of the detection blocks varies heavily depending
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* on the configuration. For example, interrupt detection block can use high
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* pass filtered data which makes it react to the changes in the acceleration.
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* Irq_flags can be used to enable interrupt detection on the both edges.
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* With proper chip configuration this produces interrupt when some trigger
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* starts and when it goes away.
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*/
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struct lis3lv02d_platform_data {
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/* please note: the 'click' feature is only supported for
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* LIS[32]02DL variants of the chip and will be ignored for
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* others */
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#define LIS3_CLICK_SINGLE_X (1 << 0)
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#define LIS3_CLICK_DOUBLE_X (1 << 1)
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#define LIS3_CLICK_SINGLE_Y (1 << 2)
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#define LIS3_CLICK_DOUBLE_Y (1 << 3)
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#define LIS3_CLICK_SINGLE_Z (1 << 4)
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#define LIS3_CLICK_DOUBLE_Z (1 << 5)
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unsigned char click_flags;
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unsigned char click_thresh_x;
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unsigned char click_thresh_y;
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unsigned char click_thresh_z;
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unsigned char click_time_limit;
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unsigned char click_latency;
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unsigned char click_window;
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#define LIS3_IRQ1_DISABLE (0 << 0)
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#define LIS3_IRQ1_FF_WU_1 (1 << 0)
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#define LIS3_IRQ1_FF_WU_2 (2 << 0)
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#define LIS3_IRQ1_FF_WU_12 (3 << 0)
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#define LIS3_IRQ1_DATA_READY (4 << 0)
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#define LIS3_IRQ1_CLICK (7 << 0)
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#define LIS3_IRQ1_MASK (7 << 0)
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#define LIS3_IRQ2_DISABLE (0 << 3)
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#define LIS3_IRQ2_FF_WU_1 (1 << 3)
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#define LIS3_IRQ2_FF_WU_2 (2 << 3)
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#define LIS3_IRQ2_FF_WU_12 (3 << 3)
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#define LIS3_IRQ2_DATA_READY (4 << 3)
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#define LIS3_IRQ2_CLICK (7 << 3)
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#define LIS3_IRQ2_MASK (7 << 3)
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#define LIS3_IRQ_OPEN_DRAIN (1 << 6)
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#define LIS3_IRQ_ACTIVE_LOW (1 << 7)
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unsigned char irq_cfg;
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unsigned char irq_flags1; /* Additional irq edge / level flags */
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unsigned char irq_flags2; /* Additional irq edge / level flags */
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unsigned char duration1;
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unsigned char duration2;
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#define LIS3_WAKEUP_X_LO (1 << 0)
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#define LIS3_WAKEUP_X_HI (1 << 1)
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#define LIS3_WAKEUP_Y_LO (1 << 2)
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#define LIS3_WAKEUP_Y_HI (1 << 3)
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#define LIS3_WAKEUP_Z_LO (1 << 4)
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#define LIS3_WAKEUP_Z_HI (1 << 5)
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unsigned char wakeup_flags;
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unsigned char wakeup_thresh;
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unsigned char wakeup_flags2;
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unsigned char wakeup_thresh2;
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#define LIS3_HIPASS_CUTFF_8HZ 0
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#define LIS3_HIPASS_CUTFF_4HZ 1
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#define LIS3_HIPASS_CUTFF_2HZ 2
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#define LIS3_HIPASS_CUTFF_1HZ 3
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#define LIS3_HIPASS1_DISABLE (1 << 2)
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#define LIS3_HIPASS2_DISABLE (1 << 3)
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unsigned char hipass_ctrl;
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#define LIS3_NO_MAP 0
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#define LIS3_DEV_X 1
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#define LIS3_DEV_Y 2
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#define LIS3_DEV_Z 3
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#define LIS3_INV_DEV_X -1
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#define LIS3_INV_DEV_Y -2
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#define LIS3_INV_DEV_Z -3
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s8 axis_x;
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s8 axis_y;
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s8 axis_z;
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#define LIS3_USE_BLOCK_READ 0x02
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u16 driver_features;
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int default_rate;
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int (*setup_resources)(void);
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int (*release_resources)(void);
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/* Limits for selftest are specified in chip data sheet */
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s16 st_min_limits[3]; /* min pass limit x, y, z */
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s16 st_max_limits[3]; /* max pass limit x, y, z */
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int irq2;
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};
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#endif /* __LIS3LV02D_H_ */
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