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https://github.com/Telecominfraproject/wlan-ap.git
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a9f47c9e1e
* bring up wf672a * add drivers lsm303agr rtl8221d ilps22qs * add cig-wifi-mode-sw for switching radio to 2 bands or 3 bands Fixes: WIFI-14509 Signed-off-by: Justin.Guo <guoxijun@actiontec.com>
158 lines
3.5 KiB
C
158 lines
3.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* STMicroelectronics ilps22qs driver
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*
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* Copyright 2023 STMicroelectronics Inc.
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*
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* MEMS Software Solutions Team
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*/
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#ifndef __ST_ILPS22QS_H
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#define __ST_ILPS22QS_H
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#include <linux/bitfield.h>
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#include <linux/iio/iio.h>
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#include <linux/module.h>
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#include <linux/mutex.h>
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#include <linux/of.h>
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#include <linux/regmap.h>
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#include <linux/types.h>
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#include <linux/workqueue.h>
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#define ST_ILPS22QS_DEV_NAME "ilps22qs"
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#define ST_ILPS28QSW_DEV_NAME "ilps28qsw"
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#define ST_ILPS22QS_WHO_AM_I_ADDR 0x0f
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#define ST_ILPS22QS_WHOAMI_VAL 0xb4
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#define ST_ILPS22QS_CTRL1_ADDR 0x10
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#define ST_ILPS22QS_ODR_MASK GENMASK(6, 3)
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#define ST_ILPS22QS_CTRL2_ADDR 0x11
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#define ST_ILPS22QS_SOFT_RESET_MASK BIT(2)
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#define ST_ILPS22QS_BDU_MASK BIT(3)
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#define ST_ILPS22QS_CTRL3_ADDR 0x12
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#define ST_ILPS22QS_AH_QVAR_EN_MASK BIT(7)
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#define ST_ILPS22QS_AH_QVAR_P_AUTO_EN_MASK BIT(5)
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#define ST_ILPS22QS_PRESS_OUT_XL_ADDR 0x28
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#define ST_ILPS22QS_TEMP_OUT_L_ADDR 0x2b
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#define ST_ILPS22QS_PRESS_FS_AVL_GAIN (1000000000UL / 4096UL)
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#define ST_ILPS22QS_TEMP_FS_AVL_GAIN 100
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#define ST_ILPS22QS_QVAR_FS_AVL_GAIN 438000
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#define ST_ILPS22QS_SHIFT_VAL(val, mask) (((val) << __ffs(mask)) & (mask))
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#define ST_ILPS22QS_ODR_LIST_NUM 8
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enum st_ilps22qs_sensor_id {
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ST_ILPS22QS_PRESS = 0,
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ST_ILPS22QS_TEMP,
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ST_ILPS22QS_QVAR,
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ST_ILPS22QS_SENSORS_NUM,
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};
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struct st_ilps22qs_odr_t {
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u8 hz;
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u8 val;
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};
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struct st_ilps22qs_reg {
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u8 addr;
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u8 mask;
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};
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struct st_ilps22qs_odr_table_t {
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u8 size;
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struct st_ilps22qs_reg reg;
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struct st_ilps22qs_odr_t odr_avl[ST_ILPS22QS_ODR_LIST_NUM];
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};
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struct st_ilps22qs_hw {
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struct iio_dev *iio_devs[ST_ILPS22QS_SENSORS_NUM];
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struct workqueue_struct *workqueue;
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struct regulator *vddio_supply;
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struct regulator *vdd_supply;
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struct regmap *regmap;
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struct device *dev;
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struct mutex lock;
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bool interleave;
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u8 enable_mask;
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u8 odr;
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};
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struct st_ilps22qs_sensor {
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enum st_ilps22qs_sensor_id id;
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struct work_struct iio_work;
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struct st_ilps22qs_hw *hw;
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struct hrtimer hr_timer;
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ktime_t ktime;
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int64_t timestamp;
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char name[32];
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u32 gain;
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u8 odr;
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};
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extern const struct dev_pm_ops st_ilps22qs_pm_ops;
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static inline int st_ilps22qs_update_locked(struct st_ilps22qs_hw *hw,
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unsigned int addr,
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unsigned int mask,
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unsigned int data)
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{
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unsigned int val = ST_ILPS22QS_SHIFT_VAL(data, mask);
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int err;
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mutex_lock(&hw->lock);
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err = regmap_update_bits(hw->regmap, addr, mask, val);
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mutex_unlock(&hw->lock);
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return err;
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}
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static inline int st_ilps22qs_read_locked(struct st_ilps22qs_hw *hw,
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unsigned int addr, void *val,
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unsigned int len)
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{
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int err;
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mutex_lock(&hw->lock);
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err = regmap_bulk_read(hw->regmap, addr, val, len);
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mutex_unlock(&hw->lock);
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return err;
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}
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static inline void st_ilps22qs_flush_works(struct st_ilps22qs_hw *hw)
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{
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flush_workqueue(hw->workqueue);
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}
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static inline int st_ilps22qs_destroy_workqueue(struct st_ilps22qs_hw *hw)
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{
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if (hw->workqueue)
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destroy_workqueue(hw->workqueue);
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return 0;
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}
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static inline int st_ilps22qs_allocate_workqueue(struct st_ilps22qs_hw *hw)
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{
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if (!hw->workqueue)
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hw->workqueue = create_workqueue(ST_ILPS22QS_DEV_NAME);
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return !hw->workqueue ? -ENOMEM : 0;
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}
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static inline s64 st_ilps22qs_get_time_ns(struct st_ilps22qs_hw *hw)
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{
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return iio_get_time_ns(hw->iio_devs[ST_ILPS22QS_PRESS]);
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}
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int st_ilps22qs_probe(struct device *dev, struct regmap *regmap);
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int st_ilps22qs_remove(struct device *dev);
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#endif /* __ST_ILPS22QS_H */
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