Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / staging / iio / light / tsl2x7x.h

diff --git a/kernel/drivers/staging/iio/light/tsl2x7x.h b/kernel/drivers/staging/iio/light/tsl2x7x.h
new file mode 100644 (file)
index 0000000..ecae922
--- /dev/null
+++ b/kernel/drivers/staging/iio/light/tsl2x7x.h
@@ -0,0 +1,100 @@
+/*
+ * Device driver for monitoring ambient light intensity (lux)
+ * and proximity (prox) within the TAOS TSL2X7X family of devices.
+ *
+ * Copyright (c) 2012, TAOS Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __TSL2X7X_H
+#define __TSL2X7X_H
+#include <linux/pm.h>
+
+/* Max number of segments allowable in LUX table */
+#define TSL2X7X_MAX_LUX_TABLE_SIZE             9
+#define MAX_DEFAULT_TABLE_BYTES (sizeof(int) * TSL2X7X_MAX_LUX_TABLE_SIZE)
+
+struct iio_dev;
+
+struct tsl2x7x_lux {
+       unsigned int ratio;
+       unsigned int ch0;
+       unsigned int ch1;
+};
+
+/**
+ * struct tsl2x7x_default_settings - power on defaults unless
+ *                                   overridden by platform data.
+ *  @als_time:              ALS Integration time - multiple of 50mS
+ *  @als_gain:              Index into the ALS gain table.
+ *  @als_gain_trim:         default gain trim to account for
+ *                          aperture effects.
+ *  @wait_time:             Time between PRX and ALS cycles
+ *                          in 2.7 periods
+ *  @prx_time:              5.2ms prox integration time -
+ *                          decrease in 2.7ms periods
+ *  @prx_gain:              Proximity gain index
+ *  @prox_config:           Prox configuration filters.
+ *  @als_cal_target:        Known external ALS reading for
+ *                          calibration.
+ *  @interrupts_en:         Enable/Disable - 0x00 = none, 0x10 = als,
+ *                                           0x20 = prx,  0x30 = bth
+ *  @persistence:           H/W Filters, Number of 'out of limits'
+ *                          ADC readings PRX/ALS.
+ *  @als_thresh_low:        CH0 'low' count to trigger interrupt.
+ *  @als_thresh_high:       CH0 'high' count to trigger interrupt.
+ *  @prox_thres_low:        Low threshold proximity detection.
+ *  @prox_thres_high:       High threshold proximity detection
+ *  @prox_pulse_count:      Number if proximity emitter pulses
+ *  @prox_max_samples_cal:  Used for prox cal.
+ */
+struct tsl2x7x_settings {
+       int als_time;
+       int als_gain;
+       int als_gain_trim;
+       int wait_time;
+       int prx_time;
+       int prox_gain;
+       int prox_config;
+       int als_cal_target;
+       u8  interrupts_en;
+       u8  persistence;
+       int als_thresh_low;
+       int als_thresh_high;
+       int prox_thres_low;
+       int prox_thres_high;
+       int prox_pulse_count;
+       int prox_max_samples_cal;
+};
+
+/**
+ * struct tsl2X7X_platform_data - Platform callback, glass and defaults
+ * @platform_power:            Suspend/resume platform callback
+ * @power_on:                  Power on callback
+ * @power_off:                 Power off callback
+ * @platform_lux_table:        Device specific glass coefficents
+ * @platform_default_settings: Device specific power on defaults
+ *
+ */
+struct tsl2X7X_platform_data {
+       int (*platform_power)(struct device *dev, pm_message_t);
+       int (*power_on)(struct iio_dev *indio_dev);
+       int (*power_off)(struct i2c_client *dev);
+       struct tsl2x7x_lux platform_lux_table[TSL2X7X_MAX_LUX_TABLE_SIZE];
+       struct tsl2x7x_settings *platform_default_settings;
+};
+
+#endif /* __TSL2X7X_H */