mma7660.c (4391affa107d68b6c3e5222264e91bbc21793cf0) mma7660.c (f4bed1ceb82e465d85d2f73c26b4652b81adb257)
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Freescale MMA7660FC 3-Axis Accelerometer
4 *
5 * Copyright (c) 2016, Intel Corporation.
6 *
7 * IIO driver for Freescale MMA7660FC; 7-bit I2C address: 0x4c.
8 */

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33 *
34 * scale = (1.5 + 1.5) * 9.81 / (2^6 - 1) = 0.467142857
35 */
36
37#define MMA7660_SCALE_AVAIL "0.467142857"
38
39static const int mma7660_nscale = 467142857;
40
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Freescale MMA7660FC 3-Axis Accelerometer
4 *
5 * Copyright (c) 2016, Intel Corporation.
6 *
7 * IIO driver for Freescale MMA7660FC; 7-bit I2C address: 0x4c.
8 */

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33 *
34 * scale = (1.5 + 1.5) * 9.81 / (2^6 - 1) = 0.467142857
35 */
36
37#define MMA7660_SCALE_AVAIL "0.467142857"
38
39static const int mma7660_nscale = 467142857;
40
41#define MMA7660_CHANNEL(reg, axis) { \
42 .type = IIO_ACCEL, \
43 .address = reg, \
44 .modified = 1, \
45 .channel2 = IIO_MOD_##axis, \
46 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
47 .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
48}
49
50static const struct iio_chan_spec mma7660_channels[] = {
51 MMA7660_CHANNEL(MMA7660_REG_XOUT, X),
52 MMA7660_CHANNEL(MMA7660_REG_YOUT, Y),
53 MMA7660_CHANNEL(MMA7660_REG_ZOUT, Z),
54};
55
56enum mma7660_mode {
57 MMA7660_MODE_STANDBY,
58 MMA7660_MODE_ACTIVE
59};
60
61struct mma7660_data {
62 struct i2c_client *client;
63 struct mutex lock;
64 enum mma7660_mode mode;
41enum mma7660_mode {
42 MMA7660_MODE_STANDBY,
43 MMA7660_MODE_ACTIVE
44};
45
46struct mma7660_data {
47 struct i2c_client *client;
48 struct mutex lock;
49 enum mma7660_mode mode;
50 struct iio_mount_matrix orientation;
65};
66
51};
52
53static const struct iio_mount_matrix *
54mma7660_get_mount_matrix(const struct iio_dev *indio_dev,
55 const struct iio_chan_spec *chan)
56{
57 struct mma7660_data *data = iio_priv(indio_dev);
58
59 return &data->orientation;
60}
61
62static const struct iio_chan_spec_ext_info mma7660_ext_info[] = {
63 IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, mma7660_get_mount_matrix),
64 { }
65};
66
67static IIO_CONST_ATTR(in_accel_scale_available, MMA7660_SCALE_AVAIL);
68
69static struct attribute *mma7660_attributes[] = {
70 &iio_const_attr_in_accel_scale_available.dev_attr.attr,
71 NULL,
72};
73
74static const struct attribute_group mma7660_attribute_group = {
75 .attrs = mma7660_attributes
76};
77
67static IIO_CONST_ATTR(in_accel_scale_available, MMA7660_SCALE_AVAIL);
68
69static struct attribute *mma7660_attributes[] = {
70 &iio_const_attr_in_accel_scale_available.dev_attr.attr,
71 NULL,
72};
73
74static const struct attribute_group mma7660_attribute_group = {
75 .attrs = mma7660_attributes
76};
77
78#define MMA7660_CHANNEL(reg, axis) { \
79 .type = IIO_ACCEL, \
80 .address = reg, \
81 .modified = 1, \
82 .channel2 = IIO_MOD_##axis, \
83 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
84 .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
85 .ext_info = mma7660_ext_info, \
86}
87
88static const struct iio_chan_spec mma7660_channels[] = {
89 MMA7660_CHANNEL(MMA7660_REG_XOUT, X),
90 MMA7660_CHANNEL(MMA7660_REG_YOUT, Y),
91 MMA7660_CHANNEL(MMA7660_REG_ZOUT, Z),
92};
93
78static int mma7660_set_mode(struct mma7660_data *data,
79 enum mma7660_mode mode)
80{
81 int ret;
82 struct i2c_client *client = data->client;
83
84 if (mode == data->mode)
85 return 0;

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182 }
183
184 data = iio_priv(indio_dev);
185 data->client = client;
186 i2c_set_clientdata(client, indio_dev);
187 mutex_init(&data->lock);
188 data->mode = MMA7660_MODE_STANDBY;
189
94static int mma7660_set_mode(struct mma7660_data *data,
95 enum mma7660_mode mode)
96{
97 int ret;
98 struct i2c_client *client = data->client;
99
100 if (mode == data->mode)
101 return 0;

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198 }
199
200 data = iio_priv(indio_dev);
201 data->client = client;
202 i2c_set_clientdata(client, indio_dev);
203 mutex_init(&data->lock);
204 data->mode = MMA7660_MODE_STANDBY;
205
206 ret = iio_read_mount_matrix(&client->dev, &data->orientation);
207 if (ret)
208 return ret;
209
190 indio_dev->info = &mma7660_info;
191 indio_dev->name = MMA7660_DRIVER_NAME;
192 indio_dev->modes = INDIO_DIRECT_MODE;
193 indio_dev->channels = mma7660_channels;
194 indio_dev->num_channels = ARRAY_SIZE(mma7660_channels);
195
196 ret = mma7660_set_mode(data, MMA7660_MODE_ACTIVE);
197 if (ret < 0)

--- 81 unchanged lines hidden --- 		210 indio_dev->info = &mma7660_info;
211 indio_dev->name = MMA7660_DRIVER_NAME;
212 indio_dev->modes = INDIO_DIRECT_MODE;
213 indio_dev->channels = mma7660_channels;
214 indio_dev->num_channels = ARRAY_SIZE(mma7660_channels);
215
216 ret = mma7660_set_mode(data, MMA7660_MODE_ACTIVE);
217 if (ret < 0)

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