| /* |
| * 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, 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 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 */ |