^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) * HID Sensors Driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) 2012, Intel Corporation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/module.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/irq.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/hid-sensor-hub.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/iio/iio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/iio/sysfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/iio/buffer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include "../common/hid-sensors/hid-sensor-trigger.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) enum accel_3d_channel {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) CHANNEL_SCAN_INDEX_X,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) CHANNEL_SCAN_INDEX_Y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) CHANNEL_SCAN_INDEX_Z,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) ACCEL_3D_CHANNEL_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct accel_3d_state {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) struct hid_sensor_hub_callbacks callbacks;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct hid_sensor_common common_attributes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) struct hid_sensor_hub_attribute_info accel[ACCEL_3D_CHANNEL_MAX];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) /* Ensure timestamp is naturally aligned */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) u32 accel_val[3];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) s64 timestamp __aligned(8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) } scan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) int scale_pre_decml;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) int scale_post_decml;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) int scale_precision;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) int value_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) int64_t timestamp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static const u32 accel_3d_addresses[ACCEL_3D_CHANNEL_MAX] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) HID_USAGE_SENSOR_ACCEL_X_AXIS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) HID_USAGE_SENSOR_ACCEL_Y_AXIS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) HID_USAGE_SENSOR_ACCEL_Z_AXIS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /* Channel definitions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static const struct iio_chan_spec accel_3d_channels[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) .type = IIO_ACCEL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) .modified = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) .channel2 = IIO_MOD_X,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) BIT(IIO_CHAN_INFO_SCALE) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) BIT(IIO_CHAN_INFO_SAMP_FREQ) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) BIT(IIO_CHAN_INFO_HYSTERESIS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) .scan_index = CHANNEL_SCAN_INDEX_X,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) .type = IIO_ACCEL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) .modified = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) .channel2 = IIO_MOD_Y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) BIT(IIO_CHAN_INFO_SCALE) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) BIT(IIO_CHAN_INFO_SAMP_FREQ) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) BIT(IIO_CHAN_INFO_HYSTERESIS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) .scan_index = CHANNEL_SCAN_INDEX_Y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .type = IIO_ACCEL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) .modified = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) .channel2 = IIO_MOD_Z,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) BIT(IIO_CHAN_INFO_SCALE) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) BIT(IIO_CHAN_INFO_SAMP_FREQ) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) BIT(IIO_CHAN_INFO_HYSTERESIS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .scan_index = CHANNEL_SCAN_INDEX_Z,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) IIO_CHAN_SOFT_TIMESTAMP(3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) /* Channel definitions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) static const struct iio_chan_spec gravity_channels[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) .type = IIO_GRAVITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .modified = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .channel2 = IIO_MOD_X,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) BIT(IIO_CHAN_INFO_SCALE) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) BIT(IIO_CHAN_INFO_SAMP_FREQ) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) BIT(IIO_CHAN_INFO_HYSTERESIS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .scan_index = CHANNEL_SCAN_INDEX_X,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) .type = IIO_GRAVITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) .modified = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) .channel2 = IIO_MOD_Y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) BIT(IIO_CHAN_INFO_SCALE) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) BIT(IIO_CHAN_INFO_SAMP_FREQ) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) BIT(IIO_CHAN_INFO_HYSTERESIS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) .scan_index = CHANNEL_SCAN_INDEX_Y,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }, {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) .type = IIO_GRAVITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) .modified = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) .channel2 = IIO_MOD_Z,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) .info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) BIT(IIO_CHAN_INFO_SCALE) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) BIT(IIO_CHAN_INFO_SAMP_FREQ) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) BIT(IIO_CHAN_INFO_HYSTERESIS),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) .scan_index = CHANNEL_SCAN_INDEX_Z,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) }
^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) /* Adjust channel real bits based on report descriptor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static void accel_3d_adjust_channel_bit_mask(struct iio_chan_spec *channels,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) int channel, int size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) channels[channel].scan_type.sign = 's';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) /* Real storage bits will change based on the report desc. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) channels[channel].scan_type.realbits = size * 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) /* Maximum size of a sample to capture is u32 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) channels[channel].scan_type.storagebits = sizeof(u32) * 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) /* Channel read_raw handler */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) static int accel_3d_read_raw(struct iio_dev *indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) struct iio_chan_spec const *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) int *val, int *val2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) long mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) struct accel_3d_state *accel_state = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) int report_id = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) u32 address;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) int ret_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) s32 min;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) struct hid_sensor_hub_device *hsdev =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) accel_state->common_attributes.hsdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) *val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) *val2 = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) switch (mask) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) case IIO_CHAN_INFO_RAW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) hid_sensor_power_state(&accel_state->common_attributes, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) report_id = accel_state->accel[chan->scan_index].report_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) min = accel_state->accel[chan->scan_index].logical_minimum;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) address = accel_3d_addresses[chan->scan_index];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) if (report_id >= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) *val = sensor_hub_input_attr_get_raw_value(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) accel_state->common_attributes.hsdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) hsdev->usage, address, report_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) SENSOR_HUB_SYNC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) min < 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) *val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) hid_sensor_power_state(&accel_state->common_attributes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) hid_sensor_power_state(&accel_state->common_attributes, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) ret_type = IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) case IIO_CHAN_INFO_SCALE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) *val = accel_state->scale_pre_decml;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) *val2 = accel_state->scale_post_decml;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) ret_type = accel_state->scale_precision;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) case IIO_CHAN_INFO_OFFSET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) *val = accel_state->value_offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) ret_type = IIO_VAL_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) case IIO_CHAN_INFO_SAMP_FREQ:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) ret_type = hid_sensor_read_samp_freq_value(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) &accel_state->common_attributes, val, val2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) case IIO_CHAN_INFO_HYSTERESIS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) ret_type = hid_sensor_read_raw_hyst_value(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) &accel_state->common_attributes, val, val2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) ret_type = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) return ret_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) /* Channel write_raw handler */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) static int accel_3d_write_raw(struct iio_dev *indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) struct iio_chan_spec const *chan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) int val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) int val2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) long mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) struct accel_3d_state *accel_state = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) switch (mask) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) case IIO_CHAN_INFO_SAMP_FREQ:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) ret = hid_sensor_write_samp_freq_value(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) &accel_state->common_attributes, val, val2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) case IIO_CHAN_INFO_HYSTERESIS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) ret = hid_sensor_write_raw_hyst_value(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) &accel_state->common_attributes, val, val2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) static const struct iio_info accel_3d_info = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) .read_raw = &accel_3d_read_raw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) .write_raw = &accel_3d_write_raw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) /* Function to push data to buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) static void hid_sensor_push_data(struct iio_dev *indio_dev, void *data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) int len, int64_t timestamp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) iio_push_to_buffers_with_timestamp(indio_dev, data, timestamp);
^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) /* Callback handler to send event after all samples are received and captured */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) static int accel_3d_proc_event(struct hid_sensor_hub_device *hsdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) unsigned usage_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) void *priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) struct iio_dev *indio_dev = platform_get_drvdata(priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) struct accel_3d_state *accel_state = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) dev_dbg(&indio_dev->dev, "accel_3d_proc_event\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) if (atomic_read(&accel_state->common_attributes.data_ready)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) if (!accel_state->timestamp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) accel_state->timestamp = iio_get_time_ns(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) hid_sensor_push_data(indio_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) &accel_state->scan,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) sizeof(accel_state->scan),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) accel_state->timestamp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) accel_state->timestamp = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) /* Capture samples in local storage */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) static int accel_3d_capture_sample(struct hid_sensor_hub_device *hsdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) unsigned usage_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) size_t raw_len, char *raw_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) void *priv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) struct iio_dev *indio_dev = platform_get_drvdata(priv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) struct accel_3d_state *accel_state = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) int offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) int ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) switch (usage_id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) case HID_USAGE_SENSOR_ACCEL_X_AXIS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) case HID_USAGE_SENSOR_ACCEL_Y_AXIS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) case HID_USAGE_SENSOR_ACCEL_Z_AXIS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) offset = usage_id - HID_USAGE_SENSOR_ACCEL_X_AXIS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) accel_state->scan.accel_val[CHANNEL_SCAN_INDEX_X + offset] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) *(u32 *)raw_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) case HID_USAGE_SENSOR_TIME_TIMESTAMP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) accel_state->timestamp =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) hid_sensor_convert_timestamp(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) &accel_state->common_attributes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) *(int64_t *)raw_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) /* Parse report which is specific to an usage id*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) static int accel_3d_parse_report(struct platform_device *pdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) struct hid_sensor_hub_device *hsdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) struct iio_chan_spec *channels,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) unsigned usage_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) struct accel_3d_state *st)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) for (i = 0; i <= CHANNEL_SCAN_INDEX_Z; ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) ret = sensor_hub_input_get_attribute_info(hsdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) HID_INPUT_REPORT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) usage_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) HID_USAGE_SENSOR_ACCEL_X_AXIS + i,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) &st->accel[CHANNEL_SCAN_INDEX_X + i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) accel_3d_adjust_channel_bit_mask(channels,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) CHANNEL_SCAN_INDEX_X + i,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) st->accel[CHANNEL_SCAN_INDEX_X + i].size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) dev_dbg(&pdev->dev, "accel_3d %x:%x, %x:%x, %x:%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) st->accel[0].index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) st->accel[0].report_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) st->accel[1].index, st->accel[1].report_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) st->accel[2].index, st->accel[2].report_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) st->scale_precision = hid_sensor_format_scale(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) hsdev->usage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) &st->accel[CHANNEL_SCAN_INDEX_X],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) &st->scale_pre_decml, &st->scale_post_decml);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) /* Set Sensitivity field ids, when there is no individual modifier */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) if (st->common_attributes.sensitivity.index < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) sensor_hub_input_get_attribute_info(hsdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) HID_FEATURE_REPORT, usage_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) HID_USAGE_SENSOR_DATA_MOD_CHANGE_SENSITIVITY_ABS |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) HID_USAGE_SENSOR_DATA_ACCELERATION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) &st->common_attributes.sensitivity);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) dev_dbg(&pdev->dev, "Sensitivity index:report %d:%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) st->common_attributes.sensitivity.index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) st->common_attributes.sensitivity.report_id);
^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) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) /* Function to initialize the processing for usage id */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) static int hid_accel_3d_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) const char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) struct iio_dev *indio_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) struct accel_3d_state *accel_state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) const struct iio_chan_spec *channel_spec;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) int channel_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) indio_dev = devm_iio_device_alloc(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) sizeof(struct accel_3d_state));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) if (indio_dev == NULL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) platform_set_drvdata(pdev, indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) accel_state = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) accel_state->common_attributes.hsdev = hsdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) accel_state->common_attributes.pdev = pdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) if (hsdev->usage == HID_USAGE_SENSOR_ACCEL_3D) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) name = "accel_3d";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) channel_spec = accel_3d_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) channel_size = sizeof(accel_3d_channels);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) indio_dev->num_channels = ARRAY_SIZE(accel_3d_channels);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) name = "gravity";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) channel_spec = gravity_channels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) channel_size = sizeof(gravity_channels);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) indio_dev->num_channels = ARRAY_SIZE(gravity_channels);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) ret = hid_sensor_parse_common_attributes(hsdev, hsdev->usage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) &accel_state->common_attributes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) dev_err(&pdev->dev, "failed to setup common attributes\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) indio_dev->channels = kmemdup(channel_spec, channel_size, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) if (!indio_dev->channels) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) dev_err(&pdev->dev, "failed to duplicate channels\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) ret = accel_3d_parse_report(pdev, hsdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) (struct iio_chan_spec *)indio_dev->channels,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) hsdev->usage, accel_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) dev_err(&pdev->dev, "failed to setup attributes\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) goto error_free_dev_mem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) indio_dev->info = &accel_3d_info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) indio_dev->name = name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) indio_dev->modes = INDIO_DIRECT_MODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) atomic_set(&accel_state->common_attributes.data_ready, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) ret = hid_sensor_setup_trigger(indio_dev, name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) &accel_state->common_attributes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) dev_err(&pdev->dev, "trigger setup failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) goto error_free_dev_mem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) ret = iio_device_register(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) dev_err(&pdev->dev, "device register failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) goto error_remove_trigger;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) accel_state->callbacks.send_event = accel_3d_proc_event;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) accel_state->callbacks.capture_sample = accel_3d_capture_sample;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) accel_state->callbacks.pdev = pdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) ret = sensor_hub_register_callback(hsdev, hsdev->usage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) &accel_state->callbacks);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) dev_err(&pdev->dev, "callback reg failed\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) goto error_iio_unreg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) error_iio_unreg:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) iio_device_unregister(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) error_remove_trigger:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) hid_sensor_remove_trigger(indio_dev, &accel_state->common_attributes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) error_free_dev_mem:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) kfree(indio_dev->channels);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) /* Function to deinitialize the processing for usage id */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) static int hid_accel_3d_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) struct iio_dev *indio_dev = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) struct accel_3d_state *accel_state = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) sensor_hub_remove_callback(hsdev, hsdev->usage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) iio_device_unregister(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) hid_sensor_remove_trigger(indio_dev, &accel_state->common_attributes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) kfree(indio_dev->channels);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) static const struct platform_device_id hid_accel_3d_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) /* Format: HID-SENSOR-usage_id_in_hex_lowercase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) .name = "HID-SENSOR-200073",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) { /* gravity sensor */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) .name = "HID-SENSOR-20007b",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) { /* sentinel */ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) MODULE_DEVICE_TABLE(platform, hid_accel_3d_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) static struct platform_driver hid_accel_3d_platform_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) .id_table = hid_accel_3d_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) .name = KBUILD_MODNAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) .pm = &hid_sensor_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) .probe = hid_accel_3d_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) .remove = hid_accel_3d_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) module_platform_driver(hid_accel_3d_platform_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) MODULE_DESCRIPTION("HID Sensor Accel 3D");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@intel.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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