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Diffstat (limited to '')
| -rw-r--r-- | drivers/iio/magnetometer/hmc5843.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/drivers/iio/magnetometer/hmc5843.h b/drivers/iio/magnetometer/hmc5843.h new file mode 100644 index 000000000..242f742f2 --- /dev/null +++ b/drivers/iio/magnetometer/hmc5843.h @@ -0,0 +1,67 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Header file for hmc5843 driver + * + * Split from hmc5843.c + * Copyright (C) Josef Gajdusek <atx@atx.name> + */ + +#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 hmc5843_data - device specific data + * @dev: actual device + * @lock: update and read regmap data + * @regmap: hardware access register maps + * @variant: describe chip variants + * @scan: buffer to pack data for passing to + * iio_push_to_buffers_with_timestamp() + */ +struct hmc5843_data { + struct device *dev; + struct mutex lock; + struct regmap *regmap; + const struct hmc5843_chip_info *variant; + struct iio_mount_matrix orientation; + struct { + __be16 chans[3]; + s64 timestamp __aligned(8); + } scan; +}; + +int hmc5843_common_probe(struct device *dev, struct regmap *regmap, + enum hmc5843_ids id, const char *name); +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 __maybe_unused 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 */ |