Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / staging / iio / magnetometer / hmc5843.h

diff --git a/kernel/drivers/staging/iio/magnetometer/hmc5843.h b/kernel/drivers/staging/iio/magnetometer/hmc5843.h
new file mode 100644 (file)
index 0000000..f3d0da2
--- /dev/null
+++ b/kernel/drivers/staging/iio/magnetometer/hmc5843.h
@@ -0,0 +1,66 @@
+/*
+ * Header file for hmc5843 driver
+ *
+ * Split from hmc5843.c
+ * Copyright (C) Josef Gajdusek <atx@atx.name>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * */
+
+#ifndef HMC5843_CORE_H
+#define HMC5843_CORE_H
+
+#include <linux/regmap.h>
+#include <linux/iio/iio.h>
+
+#define HMC5843_CONFIG_REG_A                   0x00
+#define HMC5843_CONFIG_REG_B                   0x01
+#define HMC5843_MODE_REG                       0x02
+#define HMC5843_DATA_OUT_MSB_REGS              0x03
+#define HMC5843_STATUS_REG                     0x09
+#define HMC5843_ID_REG                         0x0a
+#define HMC5843_ID_END                         0x0c
+
+enum hmc5843_ids {
+       HMC5843_ID,
+       HMC5883_ID,
+       HMC5883L_ID,
+       HMC5983_ID,
+};
+
+/**
+ * struct hcm5843_data - device specific data
+ * @dev:               actual device
+ * @lock:              update and read regmap data
+ * @regmap:            hardware access register maps
+ * @variant:           describe chip variants
+ * @buffer:            3x 16-bit channels + padding + 64-bit timestamp
+ **/
+struct hmc5843_data {
+       struct device *dev;
+       struct mutex lock;
+       struct regmap *regmap;
+       const struct hmc5843_chip_info *variant;
+       __be16 buffer[8];
+};
+
+int hmc5843_common_probe(struct device *dev, struct regmap *regmap,
+                        enum hmc5843_ids id);
+int hmc5843_common_remove(struct device *dev);
+
+int hmc5843_common_suspend(struct device *dev);
+int hmc5843_common_resume(struct device *dev);
+
+#ifdef CONFIG_PM_SLEEP
+static SIMPLE_DEV_PM_OPS(hmc5843_pm_ops,
+               hmc5843_common_suspend,
+               hmc5843_common_resume);
+#define HMC5843_PM_OPS (&hmc5843_pm_ops)
+#else
+#define HMC5843_PM_OPS NULL
+#endif
+
+#endif /* HMC5843_CORE_H */