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f10a5407b5
Add optional blockread function to interface driver. If available the chip driver uses it for data register access. For 12 bit device it reads 6 bytes to get 3*16bit data. For 8 bit device it reads out 5 bytes since every second byte is dummy. This optimizes bus usage and reduces number of operations and interrupts needed for one data update. Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Eric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
#ifndef __LIS3LV02D_H_
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#define __LIS3LV02D_H_
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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_REGULATOR_CTRL 0x01
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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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