Commit | Line | Data |
---|---|---|
217494e5 DC |
1 | /* |
2 | * STMicroelectronics pressures driver | |
3 | * | |
4 | * Copyright 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> | |
24 | #include <linux/iio/trigger.h> | |
25 | #include <linux/iio/buffer.h> | |
26 | #include <asm/unaligned.h> | |
27 | ||
28 | #include <linux/iio/common/st_sensors.h> | |
29 | #include "st_pressure.h" | |
30 | ||
67dbf54a JA |
31 | #define ST_PRESS_LSB_PER_MBAR 4096UL |
32 | #define ST_PRESS_KPASCAL_NANO_SCALE (100000000UL / \ | |
33 | ST_PRESS_LSB_PER_MBAR) | |
1003eb67 JA |
34 | #define ST_PRESS_LSB_PER_CELSIUS 480UL |
35 | #define ST_PRESS_CELSIUS_NANO_SCALE (1000000000UL / \ | |
36 | ST_PRESS_LSB_PER_CELSIUS) | |
217494e5 DC |
37 | #define ST_PRESS_NUMBER_DATA_CHANNELS 1 |
38 | ||
217494e5 DC |
39 | /* FULLSCALE */ |
40 | #define ST_PRESS_FS_AVL_1260MB 1260 | |
41 | ||
93187840 DC |
42 | #define ST_PRESS_1_OUT_XL_ADDR 0x28 |
43 | #define ST_TEMP_1_OUT_L_ADDR 0x2b | |
44 | ||
302fbd50 LJ |
45 | /* CUSTOM VALUES FOR LPS331AP SENSOR */ |
46 | #define ST_PRESS_LPS331AP_WAI_EXP 0xbb | |
47 | #define ST_PRESS_LPS331AP_ODR_ADDR 0x20 | |
48 | #define ST_PRESS_LPS331AP_ODR_MASK 0x70 | |
49 | #define ST_PRESS_LPS331AP_ODR_AVL_1HZ_VAL 0x01 | |
50 | #define ST_PRESS_LPS331AP_ODR_AVL_7HZ_VAL 0x05 | |
51 | #define ST_PRESS_LPS331AP_ODR_AVL_13HZ_VAL 0x06 | |
52 | #define ST_PRESS_LPS331AP_ODR_AVL_25HZ_VAL 0x07 | |
53 | #define ST_PRESS_LPS331AP_PW_ADDR 0x20 | |
54 | #define ST_PRESS_LPS331AP_PW_MASK 0x80 | |
55 | #define ST_PRESS_LPS331AP_FS_ADDR 0x23 | |
56 | #define ST_PRESS_LPS331AP_FS_MASK 0x30 | |
57 | #define ST_PRESS_LPS331AP_FS_AVL_1260_VAL 0x00 | |
58 | #define ST_PRESS_LPS331AP_FS_AVL_1260_GAIN ST_PRESS_KPASCAL_NANO_SCALE | |
59 | #define ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN ST_PRESS_CELSIUS_NANO_SCALE | |
60 | #define ST_PRESS_LPS331AP_BDU_ADDR 0x20 | |
61 | #define ST_PRESS_LPS331AP_BDU_MASK 0x04 | |
62 | #define ST_PRESS_LPS331AP_DRDY_IRQ_ADDR 0x22 | |
63 | #define ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK 0x04 | |
64 | #define ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK 0x20 | |
65 | #define ST_PRESS_LPS331AP_MULTIREAD_BIT true | |
66 | #define ST_PRESS_LPS331AP_TEMP_OFFSET 42500 | |
217494e5 | 67 | |
7885a8ce LJ |
68 | /* CUSTOM VALUES FOR LPS001WP SENSOR */ |
69 | #define ST_PRESS_LPS001WP_WAI_EXP 0xba | |
70 | #define ST_PRESS_LPS001WP_ODR_ADDR 0x20 | |
71 | #define ST_PRESS_LPS001WP_ODR_MASK 0x30 | |
72 | #define ST_PRESS_LPS001WP_ODR_AVL_1HZ_VAL 0x01 | |
73 | #define ST_PRESS_LPS001WP_ODR_AVL_7HZ_VAL 0x02 | |
74 | #define ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL 0x03 | |
75 | #define ST_PRESS_LPS001WP_PW_ADDR 0x20 | |
76 | #define ST_PRESS_LPS001WP_PW_MASK 0x40 | |
77 | #define ST_PRESS_LPS001WP_BDU_ADDR 0x20 | |
78 | #define ST_PRESS_LPS001WP_BDU_MASK 0x04 | |
79 | #define ST_PRESS_LPS001WP_MULTIREAD_BIT true | |
80 | #define ST_PRESS_LPS001WP_OUT_L_ADDR 0x28 | |
81 | #define ST_TEMP_LPS001WP_OUT_L_ADDR 0x2a | |
82 | ||
93187840 DC |
83 | /* CUSTOM VALUES FOR LPS25H SENSOR */ |
84 | #define ST_PRESS_LPS25H_WAI_EXP 0xbd | |
85 | #define ST_PRESS_LPS25H_ODR_ADDR 0x20 | |
86 | #define ST_PRESS_LPS25H_ODR_MASK 0x70 | |
87 | #define ST_PRESS_LPS25H_ODR_AVL_1HZ_VAL 0x01 | |
88 | #define ST_PRESS_LPS25H_ODR_AVL_7HZ_VAL 0x02 | |
89 | #define ST_PRESS_LPS25H_ODR_AVL_13HZ_VAL 0x03 | |
90 | #define ST_PRESS_LPS25H_ODR_AVL_25HZ_VAL 0x04 | |
91 | #define ST_PRESS_LPS25H_PW_ADDR 0x20 | |
92 | #define ST_PRESS_LPS25H_PW_MASK 0x80 | |
93 | #define ST_PRESS_LPS25H_FS_ADDR 0x00 | |
94 | #define ST_PRESS_LPS25H_FS_MASK 0x00 | |
95 | #define ST_PRESS_LPS25H_FS_AVL_1260_VAL 0x00 | |
96 | #define ST_PRESS_LPS25H_FS_AVL_1260_GAIN ST_PRESS_KPASCAL_NANO_SCALE | |
97 | #define ST_PRESS_LPS25H_FS_AVL_TEMP_GAIN ST_PRESS_CELSIUS_NANO_SCALE | |
98 | #define ST_PRESS_LPS25H_BDU_ADDR 0x20 | |
99 | #define ST_PRESS_LPS25H_BDU_MASK 0x04 | |
100 | #define ST_PRESS_LPS25H_DRDY_IRQ_ADDR 0x23 | |
101 | #define ST_PRESS_LPS25H_DRDY_IRQ_INT1_MASK 0x01 | |
102 | #define ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK 0x10 | |
103 | #define ST_PRESS_LPS25H_MULTIREAD_BIT true | |
104 | #define ST_PRESS_LPS25H_TEMP_OFFSET 42500 | |
105 | #define ST_PRESS_LPS25H_OUT_XL_ADDR 0x28 | |
106 | #define ST_TEMP_LPS25H_OUT_L_ADDR 0x2b | |
107 | ||
108 | static const struct iio_chan_spec st_press_1_channels[] = { | |
2f5effcb LJ |
109 | { |
110 | .type = IIO_PRESSURE, | |
111 | .channel2 = IIO_NO_MOD, | |
93187840 | 112 | .address = ST_PRESS_1_OUT_XL_ADDR, |
2f5effcb LJ |
113 | .scan_index = ST_SENSORS_SCAN_X, |
114 | .scan_type = { | |
115 | .sign = 'u', | |
116 | .realbits = 24, | |
117 | .storagebits = 24, | |
118 | .endianness = IIO_LE, | |
119 | }, | |
120 | .info_mask_separate = | |
217494e5 | 121 | BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), |
2f5effcb LJ |
122 | .modified = 0, |
123 | }, | |
124 | { | |
125 | .type = IIO_TEMP, | |
126 | .channel2 = IIO_NO_MOD, | |
93187840 | 127 | .address = ST_TEMP_1_OUT_L_ADDR, |
2f5effcb LJ |
128 | .scan_index = -1, |
129 | .scan_type = { | |
130 | .sign = 'u', | |
131 | .realbits = 16, | |
132 | .storagebits = 16, | |
133 | .endianness = IIO_LE, | |
134 | }, | |
135 | .info_mask_separate = | |
136 | BIT(IIO_CHAN_INFO_RAW) | | |
137 | BIT(IIO_CHAN_INFO_SCALE) | | |
138 | BIT(IIO_CHAN_INFO_OFFSET), | |
139 | .modified = 0, | |
140 | }, | |
217494e5 DC |
141 | IIO_CHAN_SOFT_TIMESTAMP(1) |
142 | }; | |
143 | ||
7885a8ce LJ |
144 | static const struct iio_chan_spec st_press_lps001wp_channels[] = { |
145 | { | |
146 | .type = IIO_PRESSURE, | |
147 | .channel2 = IIO_NO_MOD, | |
148 | .address = ST_PRESS_LPS001WP_OUT_L_ADDR, | |
149 | .scan_index = ST_SENSORS_SCAN_X, | |
150 | .scan_type = { | |
151 | .sign = 'u', | |
152 | .realbits = 16, | |
153 | .storagebits = 16, | |
154 | .endianness = IIO_LE, | |
155 | }, | |
156 | .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), | |
157 | .modified = 0, | |
158 | }, | |
159 | { | |
160 | .type = IIO_TEMP, | |
161 | .channel2 = IIO_NO_MOD, | |
162 | .address = ST_TEMP_LPS001WP_OUT_L_ADDR, | |
163 | .scan_index = -1, | |
164 | .scan_type = { | |
165 | .sign = 'u', | |
166 | .realbits = 16, | |
167 | .storagebits = 16, | |
168 | .endianness = IIO_LE, | |
169 | }, | |
170 | .info_mask_separate = | |
171 | BIT(IIO_CHAN_INFO_RAW) | | |
172 | BIT(IIO_CHAN_INFO_OFFSET), | |
173 | .modified = 0, | |
174 | }, | |
175 | IIO_CHAN_SOFT_TIMESTAMP(1) | |
176 | }; | |
177 | ||
a7ee8839 | 178 | static const struct st_sensor_settings st_press_sensors_settings[] = { |
217494e5 | 179 | { |
302fbd50 | 180 | .wai = ST_PRESS_LPS331AP_WAI_EXP, |
217494e5 DC |
181 | .sensors_supported = { |
182 | [0] = LPS331AP_PRESS_DEV_NAME, | |
183 | }, | |
93187840 DC |
184 | .ch = (struct iio_chan_spec *)st_press_1_channels, |
185 | .num_ch = ARRAY_SIZE(st_press_1_channels), | |
217494e5 | 186 | .odr = { |
302fbd50 LJ |
187 | .addr = ST_PRESS_LPS331AP_ODR_ADDR, |
188 | .mask = ST_PRESS_LPS331AP_ODR_MASK, | |
217494e5 | 189 | .odr_avl = { |
302fbd50 LJ |
190 | { 1, ST_PRESS_LPS331AP_ODR_AVL_1HZ_VAL, }, |
191 | { 7, ST_PRESS_LPS331AP_ODR_AVL_7HZ_VAL, }, | |
192 | { 13, ST_PRESS_LPS331AP_ODR_AVL_13HZ_VAL, }, | |
193 | { 25, ST_PRESS_LPS331AP_ODR_AVL_25HZ_VAL, }, | |
217494e5 DC |
194 | }, |
195 | }, | |
196 | .pw = { | |
302fbd50 LJ |
197 | .addr = ST_PRESS_LPS331AP_PW_ADDR, |
198 | .mask = ST_PRESS_LPS331AP_PW_MASK, | |
217494e5 DC |
199 | .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE, |
200 | .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, | |
201 | }, | |
202 | .fs = { | |
302fbd50 LJ |
203 | .addr = ST_PRESS_LPS331AP_FS_ADDR, |
204 | .mask = ST_PRESS_LPS331AP_FS_MASK, | |
217494e5 DC |
205 | .fs_avl = { |
206 | [0] = { | |
207 | .num = ST_PRESS_FS_AVL_1260MB, | |
302fbd50 LJ |
208 | .value = ST_PRESS_LPS331AP_FS_AVL_1260_VAL, |
209 | .gain = ST_PRESS_LPS331AP_FS_AVL_1260_GAIN, | |
210 | .gain2 = ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN, | |
217494e5 DC |
211 | }, |
212 | }, | |
213 | }, | |
214 | .bdu = { | |
302fbd50 LJ |
215 | .addr = ST_PRESS_LPS331AP_BDU_ADDR, |
216 | .mask = ST_PRESS_LPS331AP_BDU_MASK, | |
217494e5 DC |
217 | }, |
218 | .drdy_irq = { | |
302fbd50 LJ |
219 | .addr = ST_PRESS_LPS331AP_DRDY_IRQ_ADDR, |
220 | .mask_int1 = ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK, | |
221 | .mask_int2 = ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK, | |
217494e5 | 222 | }, |
302fbd50 | 223 | .multi_read_bit = ST_PRESS_LPS331AP_MULTIREAD_BIT, |
217494e5 DC |
224 | .bootime = 2, |
225 | }, | |
7885a8ce LJ |
226 | { |
227 | .wai = ST_PRESS_LPS001WP_WAI_EXP, | |
228 | .sensors_supported = { | |
229 | [0] = LPS001WP_PRESS_DEV_NAME, | |
230 | }, | |
231 | .ch = (struct iio_chan_spec *)st_press_lps001wp_channels, | |
232 | .num_ch = ARRAY_SIZE(st_press_lps001wp_channels), | |
233 | .odr = { | |
234 | .addr = ST_PRESS_LPS001WP_ODR_ADDR, | |
235 | .mask = ST_PRESS_LPS001WP_ODR_MASK, | |
236 | .odr_avl = { | |
237 | { 1, ST_PRESS_LPS001WP_ODR_AVL_1HZ_VAL, }, | |
238 | { 7, ST_PRESS_LPS001WP_ODR_AVL_7HZ_VAL, }, | |
239 | { 13, ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL, }, | |
240 | }, | |
241 | }, | |
242 | .pw = { | |
243 | .addr = ST_PRESS_LPS001WP_PW_ADDR, | |
244 | .mask = ST_PRESS_LPS001WP_PW_MASK, | |
245 | .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE, | |
246 | .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, | |
247 | }, | |
248 | .fs = { | |
249 | .addr = 0, | |
250 | }, | |
251 | .bdu = { | |
252 | .addr = ST_PRESS_LPS001WP_BDU_ADDR, | |
253 | .mask = ST_PRESS_LPS001WP_BDU_MASK, | |
254 | }, | |
255 | .drdy_irq = { | |
256 | .addr = 0, | |
257 | }, | |
258 | .multi_read_bit = ST_PRESS_LPS001WP_MULTIREAD_BIT, | |
259 | .bootime = 2, | |
260 | }, | |
93187840 DC |
261 | { |
262 | .wai = ST_PRESS_LPS25H_WAI_EXP, | |
263 | .sensors_supported = { | |
264 | [0] = LPS25H_PRESS_DEV_NAME, | |
265 | }, | |
266 | .ch = (struct iio_chan_spec *)st_press_1_channels, | |
267 | .num_ch = ARRAY_SIZE(st_press_1_channels), | |
268 | .odr = { | |
269 | .addr = ST_PRESS_LPS25H_ODR_ADDR, | |
270 | .mask = ST_PRESS_LPS25H_ODR_MASK, | |
271 | .odr_avl = { | |
272 | { 1, ST_PRESS_LPS25H_ODR_AVL_1HZ_VAL, }, | |
273 | { 7, ST_PRESS_LPS25H_ODR_AVL_7HZ_VAL, }, | |
274 | { 13, ST_PRESS_LPS25H_ODR_AVL_13HZ_VAL, }, | |
275 | { 25, ST_PRESS_LPS25H_ODR_AVL_25HZ_VAL, }, | |
276 | }, | |
277 | }, | |
278 | .pw = { | |
279 | .addr = ST_PRESS_LPS25H_PW_ADDR, | |
280 | .mask = ST_PRESS_LPS25H_PW_MASK, | |
281 | .value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE, | |
282 | .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, | |
283 | }, | |
284 | .fs = { | |
285 | .addr = ST_PRESS_LPS25H_FS_ADDR, | |
286 | .mask = ST_PRESS_LPS25H_FS_MASK, | |
287 | .fs_avl = { | |
288 | [0] = { | |
289 | .num = ST_PRESS_FS_AVL_1260MB, | |
290 | .value = ST_PRESS_LPS25H_FS_AVL_1260_VAL, | |
291 | .gain = ST_PRESS_LPS25H_FS_AVL_1260_GAIN, | |
292 | .gain2 = ST_PRESS_LPS25H_FS_AVL_TEMP_GAIN, | |
293 | }, | |
294 | }, | |
295 | }, | |
296 | .bdu = { | |
297 | .addr = ST_PRESS_LPS25H_BDU_ADDR, | |
298 | .mask = ST_PRESS_LPS25H_BDU_MASK, | |
299 | }, | |
300 | .drdy_irq = { | |
301 | .addr = ST_PRESS_LPS25H_DRDY_IRQ_ADDR, | |
302 | .mask_int1 = ST_PRESS_LPS25H_DRDY_IRQ_INT1_MASK, | |
303 | .mask_int2 = ST_PRESS_LPS25H_DRDY_IRQ_INT2_MASK, | |
304 | }, | |
305 | .multi_read_bit = ST_PRESS_LPS25H_MULTIREAD_BIT, | |
306 | .bootime = 2, | |
307 | }, | |
217494e5 DC |
308 | }; |
309 | ||
2d239c9e JC |
310 | static int st_press_write_raw(struct iio_dev *indio_dev, |
311 | struct iio_chan_spec const *ch, | |
312 | int val, | |
313 | int val2, | |
314 | long mask) | |
315 | { | |
316 | int err; | |
317 | ||
318 | switch (mask) { | |
319 | case IIO_CHAN_INFO_SAMP_FREQ: | |
320 | if (val2) | |
321 | return -EINVAL; | |
322 | mutex_lock(&indio_dev->mlock); | |
323 | err = st_sensors_set_odr(indio_dev, val); | |
324 | mutex_unlock(&indio_dev->mlock); | |
325 | return err; | |
326 | default: | |
327 | return -EINVAL; | |
328 | } | |
329 | } | |
330 | ||
217494e5 DC |
331 | static int st_press_read_raw(struct iio_dev *indio_dev, |
332 | struct iio_chan_spec const *ch, int *val, | |
333 | int *val2, long mask) | |
334 | { | |
335 | int err; | |
336 | struct st_sensor_data *pdata = iio_priv(indio_dev); | |
337 | ||
338 | switch (mask) { | |
339 | case IIO_CHAN_INFO_RAW: | |
340 | err = st_sensors_read_info_raw(indio_dev, ch, val); | |
341 | if (err < 0) | |
342 | goto read_error; | |
343 | ||
344 | return IIO_VAL_INT; | |
345 | case IIO_CHAN_INFO_SCALE: | |
346 | *val = 0; | |
347 | ||
348 | switch (ch->type) { | |
349 | case IIO_PRESSURE: | |
350 | *val2 = pdata->current_fullscale->gain; | |
351 | break; | |
352 | case IIO_TEMP: | |
353 | *val2 = pdata->current_fullscale->gain2; | |
354 | break; | |
355 | default: | |
356 | err = -EINVAL; | |
357 | goto read_error; | |
358 | } | |
359 | ||
360 | return IIO_VAL_INT_PLUS_NANO; | |
361 | case IIO_CHAN_INFO_OFFSET: | |
362 | switch (ch->type) { | |
363 | case IIO_TEMP: | |
364 | *val = 425; | |
365 | *val2 = 10; | |
366 | break; | |
367 | default: | |
368 | err = -EINVAL; | |
369 | goto read_error; | |
370 | } | |
371 | ||
372 | return IIO_VAL_FRACTIONAL; | |
2d239c9e JC |
373 | case IIO_CHAN_INFO_SAMP_FREQ: |
374 | *val = pdata->odr; | |
375 | return IIO_VAL_INT; | |
217494e5 DC |
376 | default: |
377 | return -EINVAL; | |
378 | } | |
379 | ||
380 | read_error: | |
381 | return err; | |
382 | } | |
383 | ||
217494e5 DC |
384 | static ST_SENSORS_DEV_ATTR_SAMP_FREQ_AVAIL(); |
385 | ||
386 | static struct attribute *st_press_attributes[] = { | |
387 | &iio_dev_attr_sampling_frequency_available.dev_attr.attr, | |
217494e5 DC |
388 | NULL, |
389 | }; | |
390 | ||
391 | static const struct attribute_group st_press_attribute_group = { | |
392 | .attrs = st_press_attributes, | |
393 | }; | |
394 | ||
395 | static const struct iio_info press_info = { | |
396 | .driver_module = THIS_MODULE, | |
397 | .attrs = &st_press_attribute_group, | |
398 | .read_raw = &st_press_read_raw, | |
2d239c9e | 399 | .write_raw = &st_press_write_raw, |
217494e5 DC |
400 | }; |
401 | ||
402 | #ifdef CONFIG_IIO_TRIGGER | |
403 | static const struct iio_trigger_ops st_press_trigger_ops = { | |
404 | .owner = THIS_MODULE, | |
405 | .set_trigger_state = ST_PRESS_TRIGGER_SET_STATE, | |
406 | }; | |
407 | #define ST_PRESS_TRIGGER_OPS (&st_press_trigger_ops) | |
408 | #else | |
409 | #define ST_PRESS_TRIGGER_OPS NULL | |
410 | #endif | |
411 | ||
0baa3fc1 | 412 | int st_press_common_probe(struct iio_dev *indio_dev) |
217494e5 | 413 | { |
217494e5 | 414 | struct st_sensor_data *pdata = iio_priv(indio_dev); |
a6cc5b25 LJ |
415 | int irq = pdata->get_irq_data_ready(indio_dev); |
416 | int err; | |
217494e5 DC |
417 | |
418 | indio_dev->modes = INDIO_DIRECT_MODE; | |
419 | indio_dev->info = &press_info; | |
420 | ||
ea7e586b | 421 | st_sensors_power_enable(indio_dev); |
77448761 | 422 | |
217494e5 | 423 | err = st_sensors_check_device_support(indio_dev, |
a7ee8839 DC |
424 | ARRAY_SIZE(st_press_sensors_settings), |
425 | st_press_sensors_settings); | |
217494e5 | 426 | if (err < 0) |
a6cc5b25 | 427 | return err; |
217494e5 DC |
428 | |
429 | pdata->num_data_channels = ST_PRESS_NUMBER_DATA_CHANNELS; | |
a7ee8839 DC |
430 | pdata->multiread_bit = pdata->sensor_settings->multi_read_bit; |
431 | indio_dev->channels = pdata->sensor_settings->ch; | |
432 | indio_dev->num_channels = pdata->sensor_settings->num_ch; | |
217494e5 | 433 | |
a7ee8839 | 434 | if (pdata->sensor_settings->fs.addr != 0) |
362f2f86 | 435 | pdata->current_fullscale = (struct st_sensor_fullscale_avl *) |
a7ee8839 | 436 | &pdata->sensor_settings->fs.fs_avl[0]; |
362f2f86 | 437 | |
a7ee8839 | 438 | pdata->odr = pdata->sensor_settings->odr.odr_avl[0].hz; |
217494e5 | 439 | |
38d1c6a9 | 440 | /* Some devices don't support a data ready pin. */ |
0baa3fc1 DC |
441 | if (!pdata->dev->platform_data && pdata->sensor_settings->drdy_irq.addr) |
442 | pdata->dev->platform_data = | |
23cde4d6 DC |
443 | (struct st_sensors_platform_data *)&default_press_pdata; |
444 | ||
0baa3fc1 | 445 | err = st_sensors_init_sensor(indio_dev, pdata->dev->platform_data); |
217494e5 | 446 | if (err < 0) |
a6cc5b25 | 447 | return err; |
217494e5 | 448 | |
7a137c9c DC |
449 | err = st_press_allocate_ring(indio_dev); |
450 | if (err < 0) | |
451 | return err; | |
217494e5 | 452 | |
7a137c9c | 453 | if (irq > 0) { |
217494e5 | 454 | err = st_sensors_allocate_trigger(indio_dev, |
a6cc5b25 | 455 | ST_PRESS_TRIGGER_OPS); |
217494e5 DC |
456 | if (err < 0) |
457 | goto st_press_probe_trigger_error; | |
458 | } | |
459 | ||
460 | err = iio_device_register(indio_dev); | |
461 | if (err) | |
462 | goto st_press_device_register_error; | |
463 | ||
4f544ced LW |
464 | dev_info(&indio_dev->dev, "registered pressure sensor %s\n", |
465 | indio_dev->name); | |
466 | ||
217494e5 DC |
467 | return err; |
468 | ||
469 | st_press_device_register_error: | |
a6cc5b25 | 470 | if (irq > 0) |
217494e5 DC |
471 | st_sensors_deallocate_trigger(indio_dev); |
472 | st_press_probe_trigger_error: | |
7a137c9c | 473 | st_press_deallocate_ring(indio_dev); |
a6cc5b25 | 474 | |
217494e5 DC |
475 | return err; |
476 | } | |
477 | EXPORT_SYMBOL(st_press_common_probe); | |
478 | ||
479 | void st_press_common_remove(struct iio_dev *indio_dev) | |
480 | { | |
481 | struct st_sensor_data *pdata = iio_priv(indio_dev); | |
482 | ||
ea7e586b | 483 | st_sensors_power_disable(indio_dev); |
77448761 | 484 | |
217494e5 | 485 | iio_device_unregister(indio_dev); |
7a137c9c | 486 | if (pdata->get_irq_data_ready(indio_dev) > 0) |
217494e5 | 487 | st_sensors_deallocate_trigger(indio_dev); |
7a137c9c DC |
488 | |
489 | st_press_deallocate_ring(indio_dev); | |
217494e5 DC |
490 | } |
491 | EXPORT_SYMBOL(st_press_common_remove); | |
492 | ||
493 | MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); | |
494 | MODULE_DESCRIPTION("STMicroelectronics pressures driver"); | |
495 | MODULE_LICENSE("GPL v2"); |