Commit | Line | Data |
---|---|---|
872e79ad DC |
1 | /* |
2 | * STMicroelectronics magnetometers driver | |
3 | * | |
4 | * Copyright 2012-2013 STMicroelectronics Inc. | |
5 | * | |
6 | * Denis Ciocca <denis.ciocca@st.com> | |
7 | * | |
8 | * Licensed under the GPL-2. | |
9 | */ | |
10 | ||
11 | #include <linux/kernel.h> | |
12 | #include <linux/module.h> | |
13 | #include <linux/slab.h> | |
14 | #include <linux/errno.h> | |
15 | #include <linux/types.h> | |
16 | #include <linux/mutex.h> | |
17 | #include <linux/interrupt.h> | |
18 | #include <linux/i2c.h> | |
19 | #include <linux/gpio.h> | |
20 | #include <linux/irq.h> | |
21 | #include <linux/delay.h> | |
22 | #include <linux/iio/iio.h> | |
23 | #include <linux/iio/sysfs.h> | |
872e79ad DC |
24 | #include <linux/iio/buffer.h> |
25 | ||
26 | #include <linux/iio/common/st_sensors.h> | |
27 | #include "st_magn.h" | |
28 | ||
607a568a DC |
29 | #define ST_MAGN_NUMBER_DATA_CHANNELS 3 |
30 | ||
872e79ad | 31 | /* DEFAULT VALUE FOR SENSORS */ |
512690da DC |
32 | #define ST_MAGN_DEFAULT_OUT_X_H_ADDR 0X03 |
33 | #define ST_MAGN_DEFAULT_OUT_Y_H_ADDR 0X07 | |
34 | #define ST_MAGN_DEFAULT_OUT_Z_H_ADDR 0X05 | |
872e79ad DC |
35 | |
36 | /* FULLSCALE */ | |
37 | #define ST_MAGN_FS_AVL_1300MG 1300 | |
38 | #define ST_MAGN_FS_AVL_1900MG 1900 | |
39 | #define ST_MAGN_FS_AVL_2500MG 2500 | |
40 | #define ST_MAGN_FS_AVL_4000MG 4000 | |
41 | #define ST_MAGN_FS_AVL_4700MG 4700 | |
42 | #define ST_MAGN_FS_AVL_5600MG 5600 | |
43 | #define ST_MAGN_FS_AVL_8000MG 8000 | |
44 | #define ST_MAGN_FS_AVL_8100MG 8100 | |
a31d0928 | 45 | #define ST_MAGN_FS_AVL_12000MG 12000 |
1e9676a8 | 46 | #define ST_MAGN_FS_AVL_15000MG 15000 |
a31d0928 | 47 | #define ST_MAGN_FS_AVL_16000MG 16000 |
872e79ad | 48 | |
1038a687 LW |
49 | /* CUSTOM VALUES FOR SENSOR 0 */ |
50 | #define ST_MAGN_0_ODR_ADDR 0x00 | |
51 | #define ST_MAGN_0_ODR_MASK 0x1c | |
52 | #define ST_MAGN_0_ODR_AVL_1HZ_VAL 0x00 | |
53 | #define ST_MAGN_0_ODR_AVL_2HZ_VAL 0x01 | |
54 | #define ST_MAGN_0_ODR_AVL_3HZ_VAL 0x02 | |
55 | #define ST_MAGN_0_ODR_AVL_8HZ_VAL 0x03 | |
56 | #define ST_MAGN_0_ODR_AVL_15HZ_VAL 0x04 | |
57 | #define ST_MAGN_0_ODR_AVL_30HZ_VAL 0x05 | |
58 | #define ST_MAGN_0_ODR_AVL_75HZ_VAL 0x06 | |
59 | #define ST_MAGN_0_ODR_AVL_220HZ_VAL 0x07 | |
60 | #define ST_MAGN_0_PW_ADDR 0x02 | |
61 | #define ST_MAGN_0_PW_MASK 0x03 | |
62 | #define ST_MAGN_0_PW_ON 0x00 | |
63 | #define ST_MAGN_0_PW_OFF 0x03 | |
64 | #define ST_MAGN_0_FS_ADDR 0x01 | |
65 | #define ST_MAGN_0_FS_MASK 0xe0 | |
66 | #define ST_MAGN_0_FS_AVL_1300_VAL 0x01 | |
67 | #define ST_MAGN_0_FS_AVL_1900_VAL 0x02 | |
68 | #define ST_MAGN_0_FS_AVL_2500_VAL 0x03 | |
69 | #define ST_MAGN_0_FS_AVL_4000_VAL 0x04 | |
70 | #define ST_MAGN_0_FS_AVL_4700_VAL 0x05 | |
71 | #define ST_MAGN_0_FS_AVL_5600_VAL 0x06 | |
72 | #define ST_MAGN_0_FS_AVL_8100_VAL 0x07 | |
73 | #define ST_MAGN_0_FS_AVL_1300_GAIN_XY 1100 | |
74 | #define ST_MAGN_0_FS_AVL_1900_GAIN_XY 855 | |
75 | #define ST_MAGN_0_FS_AVL_2500_GAIN_XY 670 | |
76 | #define ST_MAGN_0_FS_AVL_4000_GAIN_XY 450 | |
77 | #define ST_MAGN_0_FS_AVL_4700_GAIN_XY 400 | |
78 | #define ST_MAGN_0_FS_AVL_5600_GAIN_XY 330 | |
79 | #define ST_MAGN_0_FS_AVL_8100_GAIN_XY 230 | |
80 | #define ST_MAGN_0_FS_AVL_1300_GAIN_Z 980 | |
81 | #define ST_MAGN_0_FS_AVL_1900_GAIN_Z 760 | |
82 | #define ST_MAGN_0_FS_AVL_2500_GAIN_Z 600 | |
83 | #define ST_MAGN_0_FS_AVL_4000_GAIN_Z 400 | |
84 | #define ST_MAGN_0_FS_AVL_4700_GAIN_Z 355 | |
85 | #define ST_MAGN_0_FS_AVL_5600_GAIN_Z 295 | |
86 | #define ST_MAGN_0_FS_AVL_8100_GAIN_Z 205 | |
87 | #define ST_MAGN_0_MULTIREAD_BIT false | |
88 | ||
872e79ad DC |
89 | /* CUSTOM VALUES FOR SENSOR 1 */ |
90 | #define ST_MAGN_1_WAI_EXP 0x3c | |
91 | #define ST_MAGN_1_ODR_ADDR 0x00 | |
92 | #define ST_MAGN_1_ODR_MASK 0x1c | |
93 | #define ST_MAGN_1_ODR_AVL_1HZ_VAL 0x00 | |
94 | #define ST_MAGN_1_ODR_AVL_2HZ_VAL 0x01 | |
95 | #define ST_MAGN_1_ODR_AVL_3HZ_VAL 0x02 | |
96 | #define ST_MAGN_1_ODR_AVL_8HZ_VAL 0x03 | |
97 | #define ST_MAGN_1_ODR_AVL_15HZ_VAL 0x04 | |
98 | #define ST_MAGN_1_ODR_AVL_30HZ_VAL 0x05 | |
99 | #define ST_MAGN_1_ODR_AVL_75HZ_VAL 0x06 | |
100 | #define ST_MAGN_1_ODR_AVL_220HZ_VAL 0x07 | |
101 | #define ST_MAGN_1_PW_ADDR 0x02 | |
102 | #define ST_MAGN_1_PW_MASK 0x03 | |
103 | #define ST_MAGN_1_PW_ON 0x00 | |
104 | #define ST_MAGN_1_PW_OFF 0x03 | |
105 | #define ST_MAGN_1_FS_ADDR 0x01 | |
106 | #define ST_MAGN_1_FS_MASK 0xe0 | |
107 | #define ST_MAGN_1_FS_AVL_1300_VAL 0x01 | |
108 | #define ST_MAGN_1_FS_AVL_1900_VAL 0x02 | |
109 | #define ST_MAGN_1_FS_AVL_2500_VAL 0x03 | |
110 | #define ST_MAGN_1_FS_AVL_4000_VAL 0x04 | |
111 | #define ST_MAGN_1_FS_AVL_4700_VAL 0x05 | |
112 | #define ST_MAGN_1_FS_AVL_5600_VAL 0x06 | |
113 | #define ST_MAGN_1_FS_AVL_8100_VAL 0x07 | |
a31d0928 DC |
114 | #define ST_MAGN_1_FS_AVL_1300_GAIN_XY 909 |
115 | #define ST_MAGN_1_FS_AVL_1900_GAIN_XY 1169 | |
116 | #define ST_MAGN_1_FS_AVL_2500_GAIN_XY 1492 | |
117 | #define ST_MAGN_1_FS_AVL_4000_GAIN_XY 2222 | |
118 | #define ST_MAGN_1_FS_AVL_4700_GAIN_XY 2500 | |
119 | #define ST_MAGN_1_FS_AVL_5600_GAIN_XY 3030 | |
120 | #define ST_MAGN_1_FS_AVL_8100_GAIN_XY 4347 | |
121 | #define ST_MAGN_1_FS_AVL_1300_GAIN_Z 1020 | |
122 | #define ST_MAGN_1_FS_AVL_1900_GAIN_Z 1315 | |
123 | #define ST_MAGN_1_FS_AVL_2500_GAIN_Z 1666 | |
124 | #define ST_MAGN_1_FS_AVL_4000_GAIN_Z 2500 | |
125 | #define ST_MAGN_1_FS_AVL_4700_GAIN_Z 2816 | |
126 | #define ST_MAGN_1_FS_AVL_5600_GAIN_Z 3389 | |
127 | #define ST_MAGN_1_FS_AVL_8100_GAIN_Z 4878 | |
872e79ad DC |
128 | #define ST_MAGN_1_MULTIREAD_BIT false |
129 | ||
130 | /* CUSTOM VALUES FOR SENSOR 2 */ | |
131 | #define ST_MAGN_2_WAI_EXP 0x3d | |
132 | #define ST_MAGN_2_ODR_ADDR 0x20 | |
133 | #define ST_MAGN_2_ODR_MASK 0x1c | |
134 | #define ST_MAGN_2_ODR_AVL_1HZ_VAL 0x00 | |
135 | #define ST_MAGN_2_ODR_AVL_2HZ_VAL 0x01 | |
136 | #define ST_MAGN_2_ODR_AVL_3HZ_VAL 0x02 | |
137 | #define ST_MAGN_2_ODR_AVL_5HZ_VAL 0x03 | |
138 | #define ST_MAGN_2_ODR_AVL_10HZ_VAL 0x04 | |
139 | #define ST_MAGN_2_ODR_AVL_20HZ_VAL 0x05 | |
140 | #define ST_MAGN_2_ODR_AVL_40HZ_VAL 0x06 | |
141 | #define ST_MAGN_2_ODR_AVL_80HZ_VAL 0x07 | |
142 | #define ST_MAGN_2_PW_ADDR 0x22 | |
143 | #define ST_MAGN_2_PW_MASK 0x03 | |
144 | #define ST_MAGN_2_PW_ON 0x00 | |
145 | #define ST_MAGN_2_PW_OFF 0x03 | |
146 | #define ST_MAGN_2_FS_ADDR 0x21 | |
147 | #define ST_MAGN_2_FS_MASK 0x60 | |
148 | #define ST_MAGN_2_FS_AVL_4000_VAL 0x00 | |
149 | #define ST_MAGN_2_FS_AVL_8000_VAL 0x01 | |
a31d0928 DC |
150 | #define ST_MAGN_2_FS_AVL_12000_VAL 0x02 |
151 | #define ST_MAGN_2_FS_AVL_16000_VAL 0x03 | |
152 | #define ST_MAGN_2_FS_AVL_4000_GAIN 146 | |
153 | #define ST_MAGN_2_FS_AVL_8000_GAIN 292 | |
154 | #define ST_MAGN_2_FS_AVL_12000_GAIN 438 | |
155 | #define ST_MAGN_2_FS_AVL_16000_GAIN 584 | |
872e79ad DC |
156 | #define ST_MAGN_2_MULTIREAD_BIT false |
157 | #define ST_MAGN_2_OUT_X_L_ADDR 0x28 | |
158 | #define ST_MAGN_2_OUT_Y_L_ADDR 0x2a | |
159 | #define ST_MAGN_2_OUT_Z_L_ADDR 0x2c | |
160 | ||
1e9676a8 GB |
161 | /* CUSTOM VALUES FOR SENSOR 3 */ |
162 | #define ST_MAGN_3_WAI_ADDR 0x4f | |
163 | #define ST_MAGN_3_WAI_EXP 0x40 | |
164 | #define ST_MAGN_3_ODR_ADDR 0x60 | |
165 | #define ST_MAGN_3_ODR_MASK 0x0c | |
166 | #define ST_MAGN_3_ODR_AVL_10HZ_VAL 0x00 | |
167 | #define ST_MAGN_3_ODR_AVL_20HZ_VAL 0x01 | |
168 | #define ST_MAGN_3_ODR_AVL_50HZ_VAL 0x02 | |
169 | #define ST_MAGN_3_ODR_AVL_100HZ_VAL 0x03 | |
170 | #define ST_MAGN_3_PW_ADDR 0x60 | |
171 | #define ST_MAGN_3_PW_MASK 0x03 | |
172 | #define ST_MAGN_3_PW_ON 0x00 | |
173 | #define ST_MAGN_3_PW_OFF 0x03 | |
174 | #define ST_MAGN_3_BDU_ADDR 0x62 | |
175 | #define ST_MAGN_3_BDU_MASK 0x10 | |
176 | #define ST_MAGN_3_DRDY_IRQ_ADDR 0x62 | |
177 | #define ST_MAGN_3_DRDY_INT_MASK 0x01 | |
a9fd053b LW |
178 | #define ST_MAGN_3_IHL_IRQ_ADDR 0x63 |
179 | #define ST_MAGN_3_IHL_IRQ_MASK 0x04 | |
1e9676a8 GB |
180 | #define ST_MAGN_3_FS_AVL_15000_GAIN 1500 |
181 | #define ST_MAGN_3_MULTIREAD_BIT false | |
182 | #define ST_MAGN_3_OUT_X_L_ADDR 0x68 | |
183 | #define ST_MAGN_3_OUT_Y_L_ADDR 0x6a | |
184 | #define ST_MAGN_3_OUT_Z_L_ADDR 0x6c | |
185 | ||
872e79ad | 186 | static const struct iio_chan_spec st_magn_16bit_channels[] = { |
762011d6 DC |
187 | ST_SENSORS_LSM_CHANNELS(IIO_MAGN, |
188 | BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), | |
512690da DC |
189 | ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_BE, 16, 16, |
190 | ST_MAGN_DEFAULT_OUT_X_H_ADDR), | |
762011d6 DC |
191 | ST_SENSORS_LSM_CHANNELS(IIO_MAGN, |
192 | BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), | |
512690da DC |
193 | ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_BE, 16, 16, |
194 | ST_MAGN_DEFAULT_OUT_Y_H_ADDR), | |
762011d6 DC |
195 | ST_SENSORS_LSM_CHANNELS(IIO_MAGN, |
196 | BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), | |
512690da DC |
197 | ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_BE, 16, 16, |
198 | ST_MAGN_DEFAULT_OUT_Z_H_ADDR), | |
872e79ad DC |
199 | IIO_CHAN_SOFT_TIMESTAMP(3) |
200 | }; | |
201 | ||
202 | static const struct iio_chan_spec st_magn_2_16bit_channels[] = { | |
762011d6 DC |
203 | ST_SENSORS_LSM_CHANNELS(IIO_MAGN, |
204 | BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), | |
205 | ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16, | |
206 | ST_MAGN_2_OUT_X_L_ADDR), | |
207 | ST_SENSORS_LSM_CHANNELS(IIO_MAGN, | |
208 | BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), | |
209 | ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16, | |
210 | ST_MAGN_2_OUT_Y_L_ADDR), | |
211 | ST_SENSORS_LSM_CHANNELS(IIO_MAGN, | |
212 | BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), | |
213 | ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16, | |
214 | ST_MAGN_2_OUT_Z_L_ADDR), | |
872e79ad DC |
215 | IIO_CHAN_SOFT_TIMESTAMP(3) |
216 | }; | |
217 | ||
1e9676a8 GB |
218 | static const struct iio_chan_spec st_magn_3_16bit_channels[] = { |
219 | ST_SENSORS_LSM_CHANNELS(IIO_MAGN, | |
220 | BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), | |
221 | ST_SENSORS_SCAN_X, 1, IIO_MOD_X, 's', IIO_LE, 16, 16, | |
222 | ST_MAGN_3_OUT_X_L_ADDR), | |
223 | ST_SENSORS_LSM_CHANNELS(IIO_MAGN, | |
224 | BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), | |
225 | ST_SENSORS_SCAN_Y, 1, IIO_MOD_Y, 's', IIO_LE, 16, 16, | |
226 | ST_MAGN_3_OUT_Y_L_ADDR), | |
227 | ST_SENSORS_LSM_CHANNELS(IIO_MAGN, | |
228 | BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), | |
229 | ST_SENSORS_SCAN_Z, 1, IIO_MOD_Z, 's', IIO_LE, 16, 16, | |
230 | ST_MAGN_3_OUT_Z_L_ADDR), | |
231 | IIO_CHAN_SOFT_TIMESTAMP(3) | |
232 | }; | |
233 | ||
a7ee8839 | 234 | static const struct st_sensor_settings st_magn_sensors_settings[] = { |
1038a687 LW |
235 | { |
236 | .wai = 0, /* This sensor has no valid WhoAmI report 0 */ | |
bc27381e | 237 | .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, |
1038a687 LW |
238 | .sensors_supported = { |
239 | [0] = LSM303DLH_MAGN_DEV_NAME, | |
240 | }, | |
241 | .ch = (struct iio_chan_spec *)st_magn_16bit_channels, | |
242 | .odr = { | |
243 | .addr = ST_MAGN_0_ODR_ADDR, | |
244 | .mask = ST_MAGN_0_ODR_MASK, | |
245 | .odr_avl = { | |
246 | { 1, ST_MAGN_0_ODR_AVL_1HZ_VAL, }, | |
247 | { 2, ST_MAGN_0_ODR_AVL_2HZ_VAL, }, | |
248 | { 3, ST_MAGN_0_ODR_AVL_3HZ_VAL, }, | |
249 | { 8, ST_MAGN_0_ODR_AVL_8HZ_VAL, }, | |
250 | { 15, ST_MAGN_0_ODR_AVL_15HZ_VAL, }, | |
251 | { 30, ST_MAGN_0_ODR_AVL_30HZ_VAL, }, | |
252 | { 75, ST_MAGN_0_ODR_AVL_75HZ_VAL, }, | |
253 | }, | |
254 | }, | |
255 | .pw = { | |
256 | .addr = ST_MAGN_0_PW_ADDR, | |
257 | .mask = ST_MAGN_0_PW_MASK, | |
258 | .value_on = ST_MAGN_0_PW_ON, | |
259 | .value_off = ST_MAGN_0_PW_OFF, | |
260 | }, | |
261 | .fs = { | |
262 | .addr = ST_MAGN_0_FS_ADDR, | |
263 | .mask = ST_MAGN_0_FS_MASK, | |
264 | .fs_avl = { | |
265 | [0] = { | |
266 | .num = ST_MAGN_FS_AVL_1300MG, | |
267 | .value = ST_MAGN_0_FS_AVL_1300_VAL, | |
268 | .gain = ST_MAGN_0_FS_AVL_1300_GAIN_XY, | |
269 | .gain2 = ST_MAGN_0_FS_AVL_1300_GAIN_Z, | |
270 | }, | |
271 | [1] = { | |
272 | .num = ST_MAGN_FS_AVL_1900MG, | |
273 | .value = ST_MAGN_0_FS_AVL_1900_VAL, | |
274 | .gain = ST_MAGN_0_FS_AVL_1900_GAIN_XY, | |
275 | .gain2 = ST_MAGN_0_FS_AVL_1900_GAIN_Z, | |
276 | }, | |
277 | [2] = { | |
278 | .num = ST_MAGN_FS_AVL_2500MG, | |
279 | .value = ST_MAGN_0_FS_AVL_2500_VAL, | |
280 | .gain = ST_MAGN_0_FS_AVL_2500_GAIN_XY, | |
281 | .gain2 = ST_MAGN_0_FS_AVL_2500_GAIN_Z, | |
282 | }, | |
283 | [3] = { | |
284 | .num = ST_MAGN_FS_AVL_4000MG, | |
285 | .value = ST_MAGN_0_FS_AVL_4000_VAL, | |
286 | .gain = ST_MAGN_0_FS_AVL_4000_GAIN_XY, | |
287 | .gain2 = ST_MAGN_0_FS_AVL_4000_GAIN_Z, | |
288 | }, | |
289 | [4] = { | |
290 | .num = ST_MAGN_FS_AVL_4700MG, | |
291 | .value = ST_MAGN_0_FS_AVL_4700_VAL, | |
292 | .gain = ST_MAGN_0_FS_AVL_4700_GAIN_XY, | |
293 | .gain2 = ST_MAGN_0_FS_AVL_4700_GAIN_Z, | |
294 | }, | |
295 | [5] = { | |
296 | .num = ST_MAGN_FS_AVL_5600MG, | |
297 | .value = ST_MAGN_0_FS_AVL_5600_VAL, | |
298 | .gain = ST_MAGN_0_FS_AVL_5600_GAIN_XY, | |
299 | .gain2 = ST_MAGN_0_FS_AVL_5600_GAIN_Z, | |
300 | }, | |
301 | [6] = { | |
302 | .num = ST_MAGN_FS_AVL_8100MG, | |
303 | .value = ST_MAGN_0_FS_AVL_8100_VAL, | |
304 | .gain = ST_MAGN_0_FS_AVL_8100_GAIN_XY, | |
305 | .gain2 = ST_MAGN_0_FS_AVL_8100_GAIN_Z, | |
306 | }, | |
307 | }, | |
308 | }, | |
309 | .multi_read_bit = ST_MAGN_0_MULTIREAD_BIT, | |
310 | .bootime = 2, | |
311 | }, | |
872e79ad DC |
312 | { |
313 | .wai = ST_MAGN_1_WAI_EXP, | |
bc27381e | 314 | .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, |
872e79ad DC |
315 | .sensors_supported = { |
316 | [0] = LSM303DLHC_MAGN_DEV_NAME, | |
317 | [1] = LSM303DLM_MAGN_DEV_NAME, | |
318 | }, | |
319 | .ch = (struct iio_chan_spec *)st_magn_16bit_channels, | |
320 | .odr = { | |
321 | .addr = ST_MAGN_1_ODR_ADDR, | |
322 | .mask = ST_MAGN_1_ODR_MASK, | |
323 | .odr_avl = { | |
324 | { 1, ST_MAGN_1_ODR_AVL_1HZ_VAL, }, | |
325 | { 2, ST_MAGN_1_ODR_AVL_2HZ_VAL, }, | |
326 | { 3, ST_MAGN_1_ODR_AVL_3HZ_VAL, }, | |
327 | { 8, ST_MAGN_1_ODR_AVL_8HZ_VAL, }, | |
328 | { 15, ST_MAGN_1_ODR_AVL_15HZ_VAL, }, | |
329 | { 30, ST_MAGN_1_ODR_AVL_30HZ_VAL, }, | |
330 | { 75, ST_MAGN_1_ODR_AVL_75HZ_VAL, }, | |
331 | { 220, ST_MAGN_1_ODR_AVL_220HZ_VAL, }, | |
332 | }, | |
333 | }, | |
334 | .pw = { | |
335 | .addr = ST_MAGN_1_PW_ADDR, | |
336 | .mask = ST_MAGN_1_PW_MASK, | |
337 | .value_on = ST_MAGN_1_PW_ON, | |
338 | .value_off = ST_MAGN_1_PW_OFF, | |
339 | }, | |
340 | .fs = { | |
341 | .addr = ST_MAGN_1_FS_ADDR, | |
342 | .mask = ST_MAGN_1_FS_MASK, | |
343 | .fs_avl = { | |
344 | [0] = { | |
345 | .num = ST_MAGN_FS_AVL_1300MG, | |
346 | .value = ST_MAGN_1_FS_AVL_1300_VAL, | |
347 | .gain = ST_MAGN_1_FS_AVL_1300_GAIN_XY, | |
348 | .gain2 = ST_MAGN_1_FS_AVL_1300_GAIN_Z, | |
349 | }, | |
350 | [1] = { | |
351 | .num = ST_MAGN_FS_AVL_1900MG, | |
352 | .value = ST_MAGN_1_FS_AVL_1900_VAL, | |
353 | .gain = ST_MAGN_1_FS_AVL_1900_GAIN_XY, | |
354 | .gain2 = ST_MAGN_1_FS_AVL_1900_GAIN_Z, | |
355 | }, | |
356 | [2] = { | |
357 | .num = ST_MAGN_FS_AVL_2500MG, | |
358 | .value = ST_MAGN_1_FS_AVL_2500_VAL, | |
359 | .gain = ST_MAGN_1_FS_AVL_2500_GAIN_XY, | |
360 | .gain2 = ST_MAGN_1_FS_AVL_2500_GAIN_Z, | |
361 | }, | |
362 | [3] = { | |
363 | .num = ST_MAGN_FS_AVL_4000MG, | |
364 | .value = ST_MAGN_1_FS_AVL_4000_VAL, | |
365 | .gain = ST_MAGN_1_FS_AVL_4000_GAIN_XY, | |
366 | .gain2 = ST_MAGN_1_FS_AVL_4000_GAIN_Z, | |
367 | }, | |
368 | [4] = { | |
369 | .num = ST_MAGN_FS_AVL_4700MG, | |
370 | .value = ST_MAGN_1_FS_AVL_4700_VAL, | |
371 | .gain = ST_MAGN_1_FS_AVL_4700_GAIN_XY, | |
372 | .gain2 = ST_MAGN_1_FS_AVL_4700_GAIN_Z, | |
373 | }, | |
374 | [5] = { | |
375 | .num = ST_MAGN_FS_AVL_5600MG, | |
376 | .value = ST_MAGN_1_FS_AVL_5600_VAL, | |
377 | .gain = ST_MAGN_1_FS_AVL_5600_GAIN_XY, | |
378 | .gain2 = ST_MAGN_1_FS_AVL_5600_GAIN_Z, | |
379 | }, | |
380 | [6] = { | |
381 | .num = ST_MAGN_FS_AVL_8100MG, | |
382 | .value = ST_MAGN_1_FS_AVL_8100_VAL, | |
383 | .gain = ST_MAGN_1_FS_AVL_8100_GAIN_XY, | |
384 | .gain2 = ST_MAGN_1_FS_AVL_8100_GAIN_Z, | |
385 | }, | |
386 | }, | |
387 | }, | |
388 | .multi_read_bit = ST_MAGN_1_MULTIREAD_BIT, | |
389 | .bootime = 2, | |
390 | }, | |
391 | { | |
392 | .wai = ST_MAGN_2_WAI_EXP, | |
bc27381e | 393 | .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, |
872e79ad DC |
394 | .sensors_supported = { |
395 | [0] = LIS3MDL_MAGN_DEV_NAME, | |
396 | }, | |
397 | .ch = (struct iio_chan_spec *)st_magn_2_16bit_channels, | |
398 | .odr = { | |
399 | .addr = ST_MAGN_2_ODR_ADDR, | |
400 | .mask = ST_MAGN_2_ODR_MASK, | |
401 | .odr_avl = { | |
402 | { 1, ST_MAGN_2_ODR_AVL_1HZ_VAL, }, | |
403 | { 2, ST_MAGN_2_ODR_AVL_2HZ_VAL, }, | |
404 | { 3, ST_MAGN_2_ODR_AVL_3HZ_VAL, }, | |
405 | { 5, ST_MAGN_2_ODR_AVL_5HZ_VAL, }, | |
406 | { 10, ST_MAGN_2_ODR_AVL_10HZ_VAL, }, | |
407 | { 20, ST_MAGN_2_ODR_AVL_20HZ_VAL, }, | |
408 | { 40, ST_MAGN_2_ODR_AVL_40HZ_VAL, }, | |
409 | { 80, ST_MAGN_2_ODR_AVL_80HZ_VAL, }, | |
410 | }, | |
411 | }, | |
412 | .pw = { | |
413 | .addr = ST_MAGN_2_PW_ADDR, | |
414 | .mask = ST_MAGN_2_PW_MASK, | |
415 | .value_on = ST_MAGN_2_PW_ON, | |
416 | .value_off = ST_MAGN_2_PW_OFF, | |
417 | }, | |
418 | .fs = { | |
419 | .addr = ST_MAGN_2_FS_ADDR, | |
420 | .mask = ST_MAGN_2_FS_MASK, | |
421 | .fs_avl = { | |
422 | [0] = { | |
423 | .num = ST_MAGN_FS_AVL_4000MG, | |
424 | .value = ST_MAGN_2_FS_AVL_4000_VAL, | |
425 | .gain = ST_MAGN_2_FS_AVL_4000_GAIN, | |
426 | }, | |
427 | [1] = { | |
428 | .num = ST_MAGN_FS_AVL_8000MG, | |
429 | .value = ST_MAGN_2_FS_AVL_8000_VAL, | |
430 | .gain = ST_MAGN_2_FS_AVL_8000_GAIN, | |
431 | }, | |
432 | [2] = { | |
a31d0928 DC |
433 | .num = ST_MAGN_FS_AVL_12000MG, |
434 | .value = ST_MAGN_2_FS_AVL_12000_VAL, | |
435 | .gain = ST_MAGN_2_FS_AVL_12000_GAIN, | |
436 | }, | |
437 | [3] = { | |
438 | .num = ST_MAGN_FS_AVL_16000MG, | |
439 | .value = ST_MAGN_2_FS_AVL_16000_VAL, | |
440 | .gain = ST_MAGN_2_FS_AVL_16000_GAIN, | |
872e79ad DC |
441 | }, |
442 | }, | |
443 | }, | |
444 | .multi_read_bit = ST_MAGN_2_MULTIREAD_BIT, | |
445 | .bootime = 2, | |
446 | }, | |
1e9676a8 GB |
447 | { |
448 | .wai = ST_MAGN_3_WAI_EXP, | |
449 | .wai_addr = ST_MAGN_3_WAI_ADDR, | |
450 | .sensors_supported = { | |
451 | [0] = LSM303AGR_MAGN_DEV_NAME, | |
452 | }, | |
453 | .ch = (struct iio_chan_spec *)st_magn_3_16bit_channels, | |
454 | .odr = { | |
455 | .addr = ST_MAGN_3_ODR_ADDR, | |
456 | .mask = ST_MAGN_3_ODR_MASK, | |
457 | .odr_avl = { | |
458 | { 10, ST_MAGN_3_ODR_AVL_10HZ_VAL, }, | |
459 | { 20, ST_MAGN_3_ODR_AVL_20HZ_VAL, }, | |
460 | { 50, ST_MAGN_3_ODR_AVL_50HZ_VAL, }, | |
461 | { 100, ST_MAGN_3_ODR_AVL_100HZ_VAL, }, | |
462 | }, | |
463 | }, | |
464 | .pw = { | |
465 | .addr = ST_MAGN_3_PW_ADDR, | |
466 | .mask = ST_MAGN_3_PW_MASK, | |
467 | .value_on = ST_MAGN_3_PW_ON, | |
468 | .value_off = ST_MAGN_3_PW_OFF, | |
469 | }, | |
470 | .fs = { | |
471 | .fs_avl = { | |
472 | [0] = { | |
473 | .num = ST_MAGN_FS_AVL_15000MG, | |
474 | .gain = ST_MAGN_3_FS_AVL_15000_GAIN, | |
475 | }, | |
476 | }, | |
477 | }, | |
478 | .bdu = { | |
479 | .addr = ST_MAGN_3_BDU_ADDR, | |
480 | .mask = ST_MAGN_3_BDU_MASK, | |
481 | }, | |
482 | .drdy_irq = { | |
483 | .addr = ST_MAGN_3_DRDY_IRQ_ADDR, | |
484 | .mask_int1 = ST_MAGN_3_DRDY_INT_MASK, | |
a9fd053b LW |
485 | .addr_ihl = ST_MAGN_3_IHL_IRQ_ADDR, |
486 | .mask_ihl = ST_MAGN_3_IHL_IRQ_MASK, | |
97865fe4 | 487 | .addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR, |
1e9676a8 GB |
488 | }, |
489 | .multi_read_bit = ST_MAGN_3_MULTIREAD_BIT, | |
490 | .bootime = 2, | |
491 | }, | |
872e79ad DC |
492 | }; |
493 | ||
494 | static int st_magn_read_raw(struct iio_dev *indio_dev, | |
495 | struct iio_chan_spec const *ch, int *val, | |
496 | int *val2, long mask) | |
497 | { | |
498 | int err; | |
499 | struct st_sensor_data *mdata = iio_priv(indio_dev); | |
500 | ||
501 | switch (mask) { | |
502 | case IIO_CHAN_INFO_RAW: | |
503 | err = st_sensors_read_info_raw(indio_dev, ch, val); | |
504 | if (err < 0) | |
505 | goto read_error; | |
506 | ||
507 | return IIO_VAL_INT; | |
508 | case IIO_CHAN_INFO_SCALE: | |
509 | *val = 0; | |
510 | if ((ch->scan_index == ST_SENSORS_SCAN_Z) && | |
511 | (mdata->current_fullscale->gain2 != 0)) | |
512 | *val2 = mdata->current_fullscale->gain2; | |
513 | else | |
514 | *val2 = mdata->current_fullscale->gain; | |
515 | return IIO_VAL_INT_PLUS_MICRO; | |
2d239c9e JC |
516 | case IIO_CHAN_INFO_SAMP_FREQ: |
517 | *val = mdata->odr; | |
518 | return IIO_VAL_INT; | |
872e79ad DC |
519 | default: |
520 | return -EINVAL; | |
521 | } | |
522 | ||
523 | read_error: | |
524 | return err; | |
525 | } | |
526 | ||
527 | static int st_magn_write_raw(struct iio_dev *indio_dev, | |
528 | struct iio_chan_spec const *chan, int val, int val2, long mask) | |
529 | { | |
530 | int err; | |
531 | ||
532 | switch (mask) { | |
533 | case IIO_CHAN_INFO_SCALE: | |
534 | err = st_sensors_set_fullscale_by_gain(indio_dev, val2); | |
535 | break; | |
2d239c9e JC |
536 | case IIO_CHAN_INFO_SAMP_FREQ: |
537 | if (val2) | |
538 | return -EINVAL; | |
539 | mutex_lock(&indio_dev->mlock); | |
540 | err = st_sensors_set_odr(indio_dev, val); | |
541 | mutex_unlock(&indio_dev->mlock); | |
542 | return err; | |
872e79ad DC |
543 | default: |
544 | err = -EINVAL; | |
545 | } | |
546 | ||
547 | return err; | |
548 | } | |
549 | ||
872e79ad DC |
550 | static ST_SENSORS_DEV_ATTR_SAMP_FREQ_AVAIL(); |
551 | static ST_SENSORS_DEV_ATTR_SCALE_AVAIL(in_magn_scale_available); | |
552 | ||
553 | static struct attribute *st_magn_attributes[] = { | |
554 | &iio_dev_attr_sampling_frequency_available.dev_attr.attr, | |
555 | &iio_dev_attr_in_magn_scale_available.dev_attr.attr, | |
872e79ad DC |
556 | NULL, |
557 | }; | |
558 | ||
559 | static const struct attribute_group st_magn_attribute_group = { | |
560 | .attrs = st_magn_attributes, | |
561 | }; | |
562 | ||
563 | static const struct iio_info magn_info = { | |
564 | .driver_module = THIS_MODULE, | |
565 | .attrs = &st_magn_attribute_group, | |
566 | .read_raw = &st_magn_read_raw, | |
567 | .write_raw = &st_magn_write_raw, | |
a0175b9c | 568 | .debugfs_reg_access = &st_sensors_debugfs_reg_access, |
872e79ad DC |
569 | }; |
570 | ||
74f5683f GB |
571 | #ifdef CONFIG_IIO_TRIGGER |
572 | static const struct iio_trigger_ops st_magn_trigger_ops = { | |
573 | .owner = THIS_MODULE, | |
574 | .set_trigger_state = ST_MAGN_TRIGGER_SET_STATE, | |
575 | }; | |
576 | #define ST_MAGN_TRIGGER_OPS (&st_magn_trigger_ops) | |
577 | #else | |
578 | #define ST_MAGN_TRIGGER_OPS NULL | |
579 | #endif | |
580 | ||
2109eb4c | 581 | int st_magn_common_probe(struct iio_dev *indio_dev) |
872e79ad | 582 | { |
872e79ad | 583 | struct st_sensor_data *mdata = iio_priv(indio_dev); |
267a29b9 LJ |
584 | int irq = mdata->get_irq_data_ready(indio_dev); |
585 | int err; | |
872e79ad DC |
586 | |
587 | indio_dev->modes = INDIO_DIRECT_MODE; | |
588 | indio_dev->info = &magn_info; | |
8e71c04f | 589 | mutex_init(&mdata->tb.buf_lock); |
872e79ad | 590 | |
ea7e586b LW |
591 | st_sensors_power_enable(indio_dev); |
592 | ||
872e79ad | 593 | err = st_sensors_check_device_support(indio_dev, |
a7ee8839 DC |
594 | ARRAY_SIZE(st_magn_sensors_settings), |
595 | st_magn_sensors_settings); | |
872e79ad | 596 | if (err < 0) |
267a29b9 | 597 | return err; |
872e79ad | 598 | |
607a568a | 599 | mdata->num_data_channels = ST_MAGN_NUMBER_DATA_CHANNELS; |
a7ee8839 DC |
600 | mdata->multiread_bit = mdata->sensor_settings->multi_read_bit; |
601 | indio_dev->channels = mdata->sensor_settings->ch; | |
872e79ad DC |
602 | indio_dev->num_channels = ST_SENSORS_NUMBER_ALL_CHANNELS; |
603 | ||
604 | mdata->current_fullscale = (struct st_sensor_fullscale_avl *) | |
a7ee8839 DC |
605 | &mdata->sensor_settings->fs.fs_avl[0]; |
606 | mdata->odr = mdata->sensor_settings->odr.odr_avl[0].hz; | |
872e79ad | 607 | |
2109eb4c | 608 | err = st_sensors_init_sensor(indio_dev, NULL); |
872e79ad | 609 | if (err < 0) |
267a29b9 | 610 | return err; |
872e79ad | 611 | |
f60b12b0 DC |
612 | err = st_magn_allocate_ring(indio_dev); |
613 | if (err < 0) | |
614 | return err; | |
615 | ||
267a29b9 | 616 | if (irq > 0) { |
74f5683f GB |
617 | err = st_sensors_allocate_trigger(indio_dev, |
618 | ST_MAGN_TRIGGER_OPS); | |
872e79ad DC |
619 | if (err < 0) |
620 | goto st_magn_probe_trigger_error; | |
621 | } | |
622 | ||
623 | err = iio_device_register(indio_dev); | |
624 | if (err) | |
625 | goto st_magn_device_register_error; | |
626 | ||
4f544ced LW |
627 | dev_info(&indio_dev->dev, "registered magnetometer %s\n", |
628 | indio_dev->name); | |
629 | ||
267a29b9 | 630 | return 0; |
872e79ad DC |
631 | |
632 | st_magn_device_register_error: | |
267a29b9 | 633 | if (irq > 0) |
872e79ad DC |
634 | st_sensors_deallocate_trigger(indio_dev); |
635 | st_magn_probe_trigger_error: | |
f60b12b0 | 636 | st_magn_deallocate_ring(indio_dev); |
267a29b9 | 637 | |
872e79ad DC |
638 | return err; |
639 | } | |
640 | EXPORT_SYMBOL(st_magn_common_probe); | |
641 | ||
642 | void st_magn_common_remove(struct iio_dev *indio_dev) | |
643 | { | |
644 | struct st_sensor_data *mdata = iio_priv(indio_dev); | |
645 | ||
ea7e586b LW |
646 | st_sensors_power_disable(indio_dev); |
647 | ||
872e79ad | 648 | iio_device_unregister(indio_dev); |
f60b12b0 | 649 | if (mdata->get_irq_data_ready(indio_dev) > 0) |
872e79ad | 650 | st_sensors_deallocate_trigger(indio_dev); |
f60b12b0 DC |
651 | |
652 | st_magn_deallocate_ring(indio_dev); | |
872e79ad DC |
653 | } |
654 | EXPORT_SYMBOL(st_magn_common_remove); | |
655 | ||
656 | MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); | |
657 | MODULE_DESCRIPTION("STMicroelectronics magnetometers driver"); | |
658 | MODULE_LICENSE("GPL v2"); |