^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Freescale MMA9553L Intelligent Pedometer driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) 2014, Intel Corporation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/iio/iio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/iio/sysfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/iio/events.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/pm_runtime.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "mma9551_core.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define MMA9553_DRV_NAME "mma9553"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define MMA9553_IRQ_NAME "mma9553_event"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) /* Pedometer configuration registers (R/W) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #define MMA9553_REG_CONF_SLEEPMIN 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define MMA9553_REG_CONF_SLEEPMAX 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define MMA9553_REG_CONF_SLEEPTHD 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define MMA9553_MASK_CONF_WORD GENMASK(15, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define MMA9553_REG_CONF_CONF_STEPLEN 0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define MMA9553_MASK_CONF_CONFIG BIT(15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define MMA9553_MASK_CONF_ACT_DBCNTM BIT(14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define MMA9553_MASK_CONF_SLP_DBCNTM BIT(13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define MMA9553_MASK_CONF_STEPLEN GENMASK(7, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define MMA9553_REG_CONF_HEIGHT_WEIGHT 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define MMA9553_MASK_CONF_HEIGHT GENMASK(15, 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define MMA9553_MASK_CONF_WEIGHT GENMASK(7, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define MMA9553_REG_CONF_FILTER 0x0A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define MMA9553_MASK_CONF_FILTSTEP GENMASK(15, 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define MMA9553_MASK_CONF_MALE BIT(7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define MMA9553_MASK_CONF_FILTTIME GENMASK(6, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define MMA9553_REG_CONF_SPEED_STEP 0x0C
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define MMA9553_MASK_CONF_SPDPRD GENMASK(15, 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define MMA9553_MASK_CONF_STEPCOALESCE GENMASK(7, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define MMA9553_REG_CONF_ACTTHD 0x0E
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #define MMA9553_MAX_ACTTHD GENMASK(15, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) /* Pedometer status registers (R-only) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define MMA9553_REG_STATUS 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define MMA9553_MASK_STATUS_MRGFL BIT(15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define MMA9553_MASK_STATUS_SUSPCHG BIT(14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define MMA9553_MASK_STATUS_STEPCHG BIT(13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define MMA9553_MASK_STATUS_ACTCHG BIT(12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define MMA9553_MASK_STATUS_SUSP BIT(11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define MMA9553_MASK_STATUS_ACTIVITY GENMASK(10, 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define MMA9553_MASK_STATUS_VERSION GENMASK(7, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define MMA9553_REG_STEPCNT 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define MMA9553_REG_DISTANCE 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define MMA9553_REG_SPEED 0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #define MMA9553_REG_CALORIES 0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define MMA9553_REG_SLEEPCNT 0x0A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) /* Pedometer events are always mapped to this pin. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define MMA9553_DEFAULT_GPIO_PIN mma9551_gpio6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #define MMA9553_DEFAULT_GPIO_POLARITY 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) /* Bitnum used for GPIO configuration = bit number in high status byte */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define MMA9553_STATUS_TO_BITNUM(bit) (ffs(bit) - 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #define MMA9553_MAX_BITNUM MMA9553_STATUS_TO_BITNUM(BIT(16))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #define MMA9553_DEFAULT_SAMPLE_RATE 30 /* Hz */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) * The internal activity level must be stable for ACTTHD samples before
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * ACTIVITY is updated. The ACTIVITY variable contains the current activity
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * level and is updated every time a step is detected or once a second
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * if there are no steps.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) #define MMA9553_ACTIVITY_THD_TO_SEC(thd) ((thd) / MMA9553_DEFAULT_SAMPLE_RATE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) #define MMA9553_ACTIVITY_SEC_TO_THD(sec) ((sec) * MMA9553_DEFAULT_SAMPLE_RATE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * Autonomously suspend pedometer if acceleration vector magnitude
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * is near 1g (4096 at 0.244 mg/LSB resolution) for 30 seconds.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) #define MMA9553_DEFAULT_SLEEPMIN 3688 /* 0,9 g */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) #define MMA9553_DEFAULT_SLEEPMAX 4508 /* 1,1 g */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) #define MMA9553_DEFAULT_SLEEPTHD (MMA9553_DEFAULT_SAMPLE_RATE * 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) #define MMA9553_CONFIG_RETRIES 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) /* Status register - activity field */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) enum activity_level {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) ACTIVITY_UNKNOWN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) ACTIVITY_REST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) ACTIVITY_WALKING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) ACTIVITY_JOGGING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) ACTIVITY_RUNNING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static struct mma9553_event_info {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) enum iio_chan_type type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) enum iio_modifier mod;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) enum iio_event_direction dir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) } mma9553_events_info[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) .type = IIO_STEPS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) .mod = IIO_NO_MOD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) .dir = IIO_EV_DIR_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) .type = IIO_ACTIVITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) .mod = IIO_MOD_STILL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) .dir = IIO_EV_DIR_RISING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) .type = IIO_ACTIVITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) .mod = IIO_MOD_STILL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) .dir = IIO_EV_DIR_FALLING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) .type = IIO_ACTIVITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) .mod = IIO_MOD_WALKING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) .dir = IIO_EV_DIR_RISING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) .type = IIO_ACTIVITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) .mod = IIO_MOD_WALKING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) .dir = IIO_EV_DIR_FALLING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) .type = IIO_ACTIVITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) .mod = IIO_MOD_JOGGING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) .dir = IIO_EV_DIR_RISING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) .type = IIO_ACTIVITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) .mod = IIO_MOD_JOGGING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) .dir = IIO_EV_DIR_FALLING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) .type = IIO_ACTIVITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) .mod = IIO_MOD_RUNNING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) .dir = IIO_EV_DIR_RISING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) .type = IIO_ACTIVITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) .mod = IIO_MOD_RUNNING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) .dir = IIO_EV_DIR_FALLING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) #define MMA9553_EVENTS_INFO_SIZE ARRAY_SIZE(mma9553_events_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) struct mma9553_event {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) struct mma9553_event_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) bool enabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) struct mma9553_conf_regs {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) u16 sleepmin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) u16 sleepmax;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) u16 sleepthd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) u16 config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) u16 height_weight;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) u16 filter;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) u16 speed_step;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) u16 actthd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) } __packed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) struct mma9553_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) struct i2c_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) * 1. Serialize access to HW (requested by mma9551_core API).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) * 2. Serialize sequences that power on/off the device and access HW.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) struct mutex mutex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) struct mma9553_conf_regs conf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) struct mma9553_event events[MMA9553_EVENTS_INFO_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) int num_events;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) u8 gpio_bitnum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) * This is used for all features that depend on step count:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) * step count, distance, speed, calories.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) bool stepcnt_enabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) u16 stepcnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) u8 activity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) s64 timestamp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) static u8 mma9553_get_bits(u16 val, u16 mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) return (val & mask) >> (ffs(mask) - 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) static u16 mma9553_set_bits(u16 current_val, u16 val, u16 mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) return (current_val & ~mask) | (val << (ffs(mask) - 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) static enum iio_modifier mma9553_activity_to_mod(enum activity_level activity)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) switch (activity) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) case ACTIVITY_RUNNING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) return IIO_MOD_RUNNING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) case ACTIVITY_JOGGING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) return IIO_MOD_JOGGING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) case ACTIVITY_WALKING:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) return IIO_MOD_WALKING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) case ACTIVITY_REST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) return IIO_MOD_STILL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) case ACTIVITY_UNKNOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) return IIO_NO_MOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) static void mma9553_init_events(struct mma9553_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) data->num_events = MMA9553_EVENTS_INFO_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) for (i = 0; i < data->num_events; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) data->events[i].info = &mma9553_events_info[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) data->events[i].enabled = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) static struct mma9553_event *mma9553_get_event(struct mma9553_data *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) enum iio_chan_type type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) enum iio_modifier mod,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) enum iio_event_direction dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) for (i = 0; i < data->num_events; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) if (data->events[i].info->type == type &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) data->events[i].info->mod == mod &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) data->events[i].info->dir == dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) return &data->events[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) static bool mma9553_is_any_event_enabled(struct mma9553_data *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) bool check_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) enum iio_chan_type type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) for (i = 0; i < data->num_events; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) if ((check_type && data->events[i].info->type == type &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) data->events[i].enabled) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) (!check_type && data->events[i].enabled))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) static int mma9553_set_config(struct mma9553_data *data, u16 reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) u16 *p_reg_val, u16 val, u16 mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) int ret, retries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) u16 reg_val, config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) reg_val = *p_reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) if (val == mma9553_get_bits(reg_val, mask))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) reg_val = mma9553_set_bits(reg_val, val, mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) ret = mma9551_write_config_word(data->client, MMA9551_APPID_PEDOMETER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) reg, reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) dev_err(&data->client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) "error writing config register 0x%x\n", reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) *p_reg_val = reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) /* Reinitializes the pedometer with current configuration values */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) config = mma9553_set_bits(data->conf.config, 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) MMA9553_MASK_CONF_CONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) ret = mma9551_write_config_word(data->client, MMA9551_APPID_PEDOMETER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) MMA9553_REG_CONF_CONF_STEPLEN, config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) dev_err(&data->client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) "error writing config register 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) MMA9553_REG_CONF_CONF_STEPLEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) retries = MMA9553_CONFIG_RETRIES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) mma9551_sleep(MMA9553_DEFAULT_SAMPLE_RATE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) ret = mma9551_read_config_word(data->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) MMA9551_APPID_PEDOMETER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) MMA9553_REG_CONF_CONF_STEPLEN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) &config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) } while (mma9553_get_bits(config, MMA9553_MASK_CONF_CONFIG) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) --retries > 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) static int mma9553_read_activity_stepcnt(struct mma9553_data *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) u8 *activity, u16 *stepcnt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) u16 buf[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) ret = mma9551_read_status_words(data->client, MMA9551_APPID_PEDOMETER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) MMA9553_REG_STATUS, ARRAY_SIZE(buf),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) dev_err(&data->client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) "error reading status and stepcnt\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) *activity = mma9553_get_bits(buf[0], MMA9553_MASK_STATUS_ACTIVITY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) *stepcnt = buf[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) static int mma9553_conf_gpio(struct mma9553_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) u8 bitnum = 0, appid = MMA9551_APPID_PEDOMETER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) struct mma9553_event *ev_step_detect;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) bool activity_enabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) activity_enabled = mma9553_is_any_event_enabled(data, true,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) IIO_ACTIVITY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) ev_step_detect = mma9553_get_event(data, IIO_STEPS, IIO_NO_MOD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) IIO_EV_DIR_NONE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) * If both step detector and activity are enabled, use the MRGFL bit.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) * This bit is the logical OR of the SUSPCHG, STEPCHG, and ACTCHG flags.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) if (activity_enabled && ev_step_detect->enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) bitnum = MMA9553_STATUS_TO_BITNUM(MMA9553_MASK_STATUS_MRGFL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) else if (ev_step_detect->enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) bitnum = MMA9553_STATUS_TO_BITNUM(MMA9553_MASK_STATUS_STEPCHG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) else if (activity_enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) bitnum = MMA9553_STATUS_TO_BITNUM(MMA9553_MASK_STATUS_ACTCHG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) else /* Reset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) appid = MMA9551_APPID_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) if (data->gpio_bitnum == bitnum)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) /* Save initial values for activity and stepcnt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) if (activity_enabled || ev_step_detect->enabled) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) ret = mma9553_read_activity_stepcnt(data, &data->activity,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) &data->stepcnt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) ret = mma9551_gpio_config(data->client, MMA9553_DEFAULT_GPIO_PIN, appid,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) bitnum, MMA9553_DEFAULT_GPIO_POLARITY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) data->gpio_bitnum = bitnum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) static int mma9553_init(struct mma9553_data *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) ret = mma9551_read_version(data->client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) * Read all the pedometer configuration registers. This is used as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) * a device identification command to differentiate the MMA9553L
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) * from the MMA9550L.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) ret = mma9551_read_config_words(data->client, MMA9551_APPID_PEDOMETER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) MMA9553_REG_CONF_SLEEPMIN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) sizeof(data->conf) / sizeof(u16),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) (u16 *)&data->conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) dev_err(&data->client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) "failed to read configuration registers\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) /* Reset GPIO */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) data->gpio_bitnum = MMA9553_MAX_BITNUM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) ret = mma9553_conf_gpio(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) ret = mma9551_app_reset(data->client, MMA9551_RSC_PED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) /* Init config registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) data->conf.sleepmin = MMA9553_DEFAULT_SLEEPMIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) data->conf.sleepmax = MMA9553_DEFAULT_SLEEPMAX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) data->conf.sleepthd = MMA9553_DEFAULT_SLEEPTHD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) data->conf.config = mma9553_set_bits(data->conf.config, 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) MMA9553_MASK_CONF_CONFIG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) * Clear the activity debounce counter when the activity level changes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) * so that the confidence level applies for any activity level.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) data->conf.config = mma9553_set_bits(data->conf.config, 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) MMA9553_MASK_CONF_ACT_DBCNTM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) ret = mma9551_write_config_words(data->client, MMA9551_APPID_PEDOMETER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) MMA9553_REG_CONF_SLEEPMIN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) sizeof(data->conf) / sizeof(u16),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) (u16 *)&data->conf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) dev_err(&data->client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) "failed to write configuration registers\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) return mma9551_set_device_state(data->client, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) static int mma9553_read_status_word(struct mma9553_data *data, u16 reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) u16 *tmp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) bool powered_on;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) * The HW only counts steps and other dependent
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) * parameters (speed, distance, calories, activity)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) * if power is on (from enabling an event or the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) * step counter).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) powered_on = mma9553_is_any_event_enabled(data, false, 0) ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) data->stepcnt_enabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) if (!powered_on) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) dev_err(&data->client->dev, "No channels enabled\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) ret = mma9551_read_status_word(data->client, MMA9551_APPID_PEDOMETER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) reg, tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) static int mma9553_read_raw(struct iio_dev *indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) struct iio_chan_spec const *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) int *val, int *val2, long mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) u16 tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) u8 activity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) switch (mask) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) case IIO_CHAN_INFO_PROCESSED:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) switch (chan->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) case IIO_STEPS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) ret = mma9553_read_status_word(data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) MMA9553_REG_STEPCNT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) &tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) *val = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) case IIO_DISTANCE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) ret = mma9553_read_status_word(data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) MMA9553_REG_DISTANCE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) &tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) *val = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) case IIO_ACTIVITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) ret = mma9553_read_status_word(data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) MMA9553_REG_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) &tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) activity =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) mma9553_get_bits(tmp, MMA9553_MASK_STATUS_ACTIVITY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) * The device does not support confidence value levels,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) * so we will always have 100% for current activity and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) * 0% for the others.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) if (chan->channel2 == mma9553_activity_to_mod(activity))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) *val = 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) *val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) case IIO_CHAN_INFO_RAW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) switch (chan->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) case IIO_VELOCITY: /* m/h */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) if (chan->channel2 != IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) ret = mma9553_read_status_word(data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) MMA9553_REG_SPEED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) &tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) *val = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) case IIO_ENERGY: /* Cal or kcal */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) ret = mma9553_read_status_word(data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) MMA9553_REG_CALORIES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) &tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) *val = tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) case IIO_ACCEL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) ret = mma9551_read_accel_chan(data->client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) chan, val, val2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) case IIO_CHAN_INFO_SCALE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) switch (chan->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) case IIO_VELOCITY: /* m/h to m/s */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) if (chan->channel2 != IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) *val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) *val2 = 277; /* 0.000277 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) return IIO_VAL_INT_PLUS_MICRO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) case IIO_ENERGY: /* Cal or kcal to J */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) *val = 4184;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) case IIO_ACCEL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) return mma9551_read_accel_scale(val, val2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) case IIO_CHAN_INFO_ENABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) *val = data->stepcnt_enabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) case IIO_CHAN_INFO_CALIBHEIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) tmp = mma9553_get_bits(data->conf.height_weight,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) MMA9553_MASK_CONF_HEIGHT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) *val = tmp / 100; /* cm to m */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) *val2 = (tmp % 100) * 10000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) return IIO_VAL_INT_PLUS_MICRO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) case IIO_CHAN_INFO_CALIBWEIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) *val = mma9553_get_bits(data->conf.height_weight,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) MMA9553_MASK_CONF_WEIGHT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) case IIO_CHAN_INFO_DEBOUNCE_COUNT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) switch (chan->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) case IIO_STEPS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) *val = mma9553_get_bits(data->conf.filter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) MMA9553_MASK_CONF_FILTSTEP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) case IIO_CHAN_INFO_DEBOUNCE_TIME:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) switch (chan->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) case IIO_STEPS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) *val = mma9553_get_bits(data->conf.filter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) MMA9553_MASK_CONF_FILTTIME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) case IIO_CHAN_INFO_INT_TIME:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) switch (chan->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) case IIO_VELOCITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) if (chan->channel2 != IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) *val = mma9553_get_bits(data->conf.speed_step,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) MMA9553_MASK_CONF_SPDPRD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) static int mma9553_write_raw(struct iio_dev *indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) struct iio_chan_spec const *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) int val, int val2, long mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) int ret, tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) switch (mask) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) case IIO_CHAN_INFO_ENABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) if (data->stepcnt_enabled == !!val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) ret = mma9551_set_power_state(data->client, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) data->stepcnt_enabled = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) case IIO_CHAN_INFO_CALIBHEIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) /* m to cm */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) tmp = val * 100 + val2 / 10000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) if (tmp < 0 || tmp > 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) ret = mma9553_set_config(data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) MMA9553_REG_CONF_HEIGHT_WEIGHT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) &data->conf.height_weight,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) tmp, MMA9553_MASK_CONF_HEIGHT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) case IIO_CHAN_INFO_CALIBWEIGHT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) if (val < 0 || val > 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) ret = mma9553_set_config(data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) MMA9553_REG_CONF_HEIGHT_WEIGHT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) &data->conf.height_weight,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) val, MMA9553_MASK_CONF_WEIGHT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) case IIO_CHAN_INFO_DEBOUNCE_COUNT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) switch (chan->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) case IIO_STEPS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) * Set to 0 to disable step filtering. If the value
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) * specified is greater than 6, then 6 will be used.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) if (val < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) if (val > 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) val = 6;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) ret = mma9553_set_config(data, MMA9553_REG_CONF_FILTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) &data->conf.filter, val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) MMA9553_MASK_CONF_FILTSTEP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) case IIO_CHAN_INFO_DEBOUNCE_TIME:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) switch (chan->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) case IIO_STEPS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) if (val < 0 || val > 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) ret = mma9553_set_config(data, MMA9553_REG_CONF_FILTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) &data->conf.filter, val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) MMA9553_MASK_CONF_FILTTIME);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) case IIO_CHAN_INFO_INT_TIME:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) switch (chan->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) case IIO_VELOCITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) if (chan->channel2 != IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) * If set to a value greater than 5, then 5 will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) * used. Warning: Do not set SPDPRD to 0 or 1 as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) * this may cause undesirable behavior.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) if (val < 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) if (val > 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) val = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) ret = mma9553_set_config(data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) MMA9553_REG_CONF_SPEED_STEP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) &data->conf.speed_step, val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) MMA9553_MASK_CONF_SPDPRD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) static int mma9553_read_event_config(struct iio_dev *indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) const struct iio_chan_spec *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) enum iio_event_type type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) enum iio_event_direction dir)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) struct mma9553_event *event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) event = mma9553_get_event(data, chan->type, chan->channel2, dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) if (!event)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) return event->enabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) static int mma9553_write_event_config(struct iio_dev *indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) const struct iio_chan_spec *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) enum iio_event_type type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) enum iio_event_direction dir, int state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) struct mma9553_event *event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) event = mma9553_get_event(data, chan->type, chan->channel2, dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) if (!event)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) if (event->enabled == state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) ret = mma9551_set_power_state(data->client, state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) goto err_out;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) event->enabled = state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) ret = mma9553_conf_gpio(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) goto err_conf_gpio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) err_conf_gpio:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) if (state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) event->enabled = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) mma9551_set_power_state(data->client, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) err_out:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) static int mma9553_read_event_value(struct iio_dev *indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) const struct iio_chan_spec *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) enum iio_event_type type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) enum iio_event_direction dir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) enum iio_event_info info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) int *val, int *val2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) *val2 = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) switch (info) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) case IIO_EV_INFO_VALUE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) switch (chan->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) case IIO_STEPS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) *val = mma9553_get_bits(data->conf.speed_step,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) MMA9553_MASK_CONF_STEPCOALESCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) case IIO_ACTIVITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) * The device does not support confidence value levels.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) * We set an average of 50%.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) *val = 50;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) case IIO_EV_INFO_PERIOD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) switch (chan->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) case IIO_ACTIVITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) *val = MMA9553_ACTIVITY_THD_TO_SEC(data->conf.actthd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) return IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) static int mma9553_write_event_value(struct iio_dev *indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) const struct iio_chan_spec *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) enum iio_event_type type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) enum iio_event_direction dir,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) enum iio_event_info info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) int val, int val2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) switch (info) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) case IIO_EV_INFO_VALUE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) switch (chan->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) case IIO_STEPS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) if (val < 0 || val > 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) ret = mma9553_set_config(data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) MMA9553_REG_CONF_SPEED_STEP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) &data->conf.speed_step, val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) MMA9553_MASK_CONF_STEPCOALESCE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) case IIO_EV_INFO_PERIOD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) switch (chan->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) case IIO_ACTIVITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) if (val < 0 || val > MMA9553_ACTIVITY_THD_TO_SEC(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) MMA9553_MAX_ACTTHD))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) ret = mma9553_set_config(data, MMA9553_REG_CONF_ACTTHD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) &data->conf.actthd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) MMA9553_ACTIVITY_SEC_TO_THD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) (val), MMA9553_MASK_CONF_WORD);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) static int mma9553_get_calibgender_mode(struct iio_dev *indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) const struct iio_chan_spec *chan)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) u8 gender;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) gender = mma9553_get_bits(data->conf.filter, MMA9553_MASK_CONF_MALE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) * HW expects 0 for female and 1 for male,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) * while iio index is 0 for male and 1 for female.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) return !gender;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) static int mma9553_set_calibgender_mode(struct iio_dev *indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) const struct iio_chan_spec *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) unsigned int mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) u8 gender = !mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) if ((mode != 0) && (mode != 1))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) ret = mma9553_set_config(data, MMA9553_REG_CONF_FILTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) &data->conf.filter, gender,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) MMA9553_MASK_CONF_MALE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) static const struct iio_event_spec mma9553_step_event = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) .type = IIO_EV_TYPE_CHANGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) .dir = IIO_EV_DIR_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) .mask_separate = BIT(IIO_EV_INFO_ENABLE) | BIT(IIO_EV_INFO_VALUE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) static const struct iio_event_spec mma9553_activity_events[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) .type = IIO_EV_TYPE_THRESH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) .dir = IIO_EV_DIR_RISING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) .mask_separate = BIT(IIO_EV_INFO_ENABLE) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) BIT(IIO_EV_INFO_VALUE) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) BIT(IIO_EV_INFO_PERIOD),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) .type = IIO_EV_TYPE_THRESH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) .dir = IIO_EV_DIR_FALLING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) .mask_separate = BIT(IIO_EV_INFO_ENABLE) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) BIT(IIO_EV_INFO_VALUE) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) BIT(IIO_EV_INFO_PERIOD),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) static const char * const mma9553_calibgender_modes[] = { "male", "female" };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) static const struct iio_enum mma9553_calibgender_enum = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) .items = mma9553_calibgender_modes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) .num_items = ARRAY_SIZE(mma9553_calibgender_modes),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) .get = mma9553_get_calibgender_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) .set = mma9553_set_calibgender_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) static const struct iio_chan_spec_ext_info mma9553_ext_info[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) IIO_ENUM("calibgender", IIO_SHARED_BY_TYPE, &mma9553_calibgender_enum),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) IIO_ENUM_AVAILABLE("calibgender", &mma9553_calibgender_enum),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) #define MMA9553_PEDOMETER_CHANNEL(_type, _mask) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) .type = _type, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) .info_mask_separate = BIT(IIO_CHAN_INFO_ENABLE) | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) BIT(IIO_CHAN_INFO_CALIBHEIGHT) | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) _mask, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) .ext_info = mma9553_ext_info, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) #define MMA9553_ACTIVITY_CHANNEL(_chan2) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) .type = IIO_ACTIVITY, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) .modified = 1, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) .channel2 = _chan2, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_CALIBHEIGHT) | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) BIT(IIO_CHAN_INFO_ENABLE), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) .event_spec = mma9553_activity_events, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) .num_event_specs = ARRAY_SIZE(mma9553_activity_events), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) .ext_info = mma9553_ext_info, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) static const struct iio_chan_spec mma9553_channels[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) MMA9551_ACCEL_CHANNEL(IIO_MOD_X),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) MMA9551_ACCEL_CHANNEL(IIO_MOD_Y),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) MMA9551_ACCEL_CHANNEL(IIO_MOD_Z),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) .type = IIO_STEPS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) BIT(IIO_CHAN_INFO_ENABLE) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) BIT(IIO_CHAN_INFO_DEBOUNCE_COUNT) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) BIT(IIO_CHAN_INFO_DEBOUNCE_TIME),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) .event_spec = &mma9553_step_event,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) .num_event_specs = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) MMA9553_PEDOMETER_CHANNEL(IIO_DISTANCE, BIT(IIO_CHAN_INFO_PROCESSED)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) .type = IIO_VELOCITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) .modified = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) .channel2 = IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) BIT(IIO_CHAN_INFO_SCALE) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) BIT(IIO_CHAN_INFO_INT_TIME) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) BIT(IIO_CHAN_INFO_ENABLE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_CALIBHEIGHT),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) .ext_info = mma9553_ext_info,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) MMA9553_PEDOMETER_CHANNEL(IIO_ENERGY, BIT(IIO_CHAN_INFO_RAW) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) BIT(IIO_CHAN_INFO_SCALE) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) BIT(IIO_CHAN_INFO_CALIBWEIGHT)),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) MMA9553_ACTIVITY_CHANNEL(IIO_MOD_RUNNING),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) MMA9553_ACTIVITY_CHANNEL(IIO_MOD_JOGGING),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) MMA9553_ACTIVITY_CHANNEL(IIO_MOD_WALKING),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) MMA9553_ACTIVITY_CHANNEL(IIO_MOD_STILL),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) static const struct iio_info mma9553_info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) .read_raw = mma9553_read_raw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) .write_raw = mma9553_write_raw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) .read_event_config = mma9553_read_event_config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) .write_event_config = mma9553_write_event_config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) .read_event_value = mma9553_read_event_value,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) .write_event_value = mma9553_write_event_value,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) static irqreturn_t mma9553_irq_handler(int irq, void *private)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) struct iio_dev *indio_dev = private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) data->timestamp = iio_get_time_ns(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) * Since we only configure the interrupt pin when an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) * event is enabled, we are sure we have at least
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) * one event enabled at this point.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) return IRQ_WAKE_THREAD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) static irqreturn_t mma9553_event_handler(int irq, void *private)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) struct iio_dev *indio_dev = private;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) u16 stepcnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) u8 activity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) struct mma9553_event *ev_activity, *ev_prev_activity, *ev_step_detect;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) ret = mma9553_read_activity_stepcnt(data, &activity, &stepcnt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) ev_prev_activity = mma9553_get_event(data, IIO_ACTIVITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) mma9553_activity_to_mod(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) data->activity),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) IIO_EV_DIR_FALLING);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) ev_activity = mma9553_get_event(data, IIO_ACTIVITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025) mma9553_activity_to_mod(activity),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) IIO_EV_DIR_RISING);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) ev_step_detect = mma9553_get_event(data, IIO_STEPS, IIO_NO_MOD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) IIO_EV_DIR_NONE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) if (ev_step_detect->enabled && (stepcnt != data->stepcnt)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) data->stepcnt = stepcnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) iio_push_event(indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) IIO_EVENT_CODE(IIO_STEPS, 0, IIO_NO_MOD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) IIO_EV_DIR_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) IIO_EV_TYPE_CHANGE, 0, 0, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) data->timestamp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) if (activity != data->activity) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) data->activity = activity;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) /* ev_activity can be NULL if activity == ACTIVITY_UNKNOWN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) if (ev_prev_activity && ev_prev_activity->enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) iio_push_event(indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) IIO_EVENT_CODE(IIO_ACTIVITY, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) ev_prev_activity->info->mod,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) IIO_EV_DIR_FALLING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047) IIO_EV_TYPE_THRESH, 0, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) data->timestamp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) if (ev_activity && ev_activity->enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) iio_push_event(indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) IIO_EVENT_CODE(IIO_ACTIVITY, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) ev_activity->info->mod,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) IIO_EV_DIR_RISING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) IIO_EV_TYPE_THRESH, 0, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) data->timestamp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) static const char *mma9553_match_acpi_device(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) const struct acpi_device_id *id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) id = acpi_match_device(dev->driver->acpi_match_table, dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) if (!id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) return dev_name(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) static int mma9553_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) struct mma9553_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) struct iio_dev *indio_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) const char *name = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) if (!indio_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) i2c_set_clientdata(client, indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) data->client = client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) if (id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) name = id->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) else if (ACPI_HANDLE(&client->dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) name = mma9553_match_acpi_device(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) return -ENOSYS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) mutex_init(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) mma9553_init_events(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) ret = mma9553_init(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) indio_dev->channels = mma9553_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) indio_dev->num_channels = ARRAY_SIZE(mma9553_channels);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) indio_dev->name = name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) indio_dev->modes = INDIO_DIRECT_MODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) indio_dev->info = &mma9553_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) if (client->irq > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) ret = devm_request_threaded_irq(&client->dev, client->irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) mma9553_irq_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) mma9553_event_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) IRQF_TRIGGER_RISING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) MMA9553_IRQ_NAME, indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) dev_err(&client->dev, "request irq %d failed\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) client->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) goto out_poweroff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) ret = pm_runtime_set_active(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) goto out_poweroff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) pm_runtime_enable(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) pm_runtime_set_autosuspend_delay(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) MMA9551_AUTO_SUSPEND_DELAY_MS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) pm_runtime_use_autosuspend(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) ret = iio_device_register(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) dev_err(&client->dev, "unable to register iio device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) goto err_pm_cleanup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) dev_dbg(&indio_dev->dev, "Registered device %s\n", name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) err_pm_cleanup:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) pm_runtime_dont_use_autosuspend(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) pm_runtime_disable(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) out_poweroff:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) mma9551_set_device_state(client, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) static int mma9553_remove(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) struct iio_dev *indio_dev = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) iio_device_unregister(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) pm_runtime_disable(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) pm_runtime_set_suspended(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) pm_runtime_put_noidle(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) mma9551_set_device_state(data->client, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) static int mma9553_runtime_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) ret = mma9551_set_device_state(data->client, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) dev_err(&data->client->dev, "powering off device failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) return -EAGAIN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) static int mma9553_runtime_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) ret = mma9551_set_device_state(data->client, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197) mma9551_sleep(MMA9553_DEFAULT_SAMPLE_RATE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) #ifdef CONFIG_PM_SLEEP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204) static int mma9553_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) ret = mma9551_set_device_state(data->client, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) static int mma9553_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) struct mma9553_data *data = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) mutex_lock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) ret = mma9551_set_device_state(data->client, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) mutex_unlock(&data->mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231) static const struct dev_pm_ops mma9553_pm_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) SET_SYSTEM_SLEEP_PM_OPS(mma9553_suspend, mma9553_resume)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) SET_RUNTIME_PM_OPS(mma9553_runtime_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) mma9553_runtime_resume, NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) static const struct acpi_device_id mma9553_acpi_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) {"MMA9553", 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) MODULE_DEVICE_TABLE(acpi, mma9553_acpi_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) static const struct i2c_device_id mma9553_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) {"mma9553", 0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249) MODULE_DEVICE_TABLE(i2c, mma9553_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) static struct i2c_driver mma9553_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) .name = MMA9553_DRV_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) .acpi_match_table = ACPI_PTR(mma9553_acpi_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255) .pm = &mma9553_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) .probe = mma9553_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) .remove = mma9553_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) .id_table = mma9553_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262) module_i2c_driver(mma9553_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) MODULE_AUTHOR("Irina Tirdea <irina.tirdea@intel.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) MODULE_LICENSE("GPL v2");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) MODULE_DESCRIPTION("MMA9553L pedometer platform driver");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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