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10#ifndef __IIO_ADIS_H__
11#define __IIO_ADIS_H__
12
13#include <linux/spi/spi.h>
14#include <linux/interrupt.h>
15#include <linux/iio/types.h>
16
17#define ADIS_WRITE_REG(reg) ((0x80 | (reg)))
18#define ADIS_READ_REG(reg) ((reg) & 0x7f)
19
20#define ADIS_PAGE_SIZE 0x80
21#define ADIS_REG_PAGE_ID 0x00
22
23struct adis;
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33
34
35struct adis_data {
36 unsigned int read_delay;
37 unsigned int write_delay;
38
39 unsigned int glob_cmd_reg;
40 unsigned int msc_ctrl_reg;
41 unsigned int diag_stat_reg;
42
43 unsigned int self_test_mask;
44 unsigned int startup_delay;
45
46 const char * const *status_error_msgs;
47 unsigned int status_error_mask;
48
49 int (*enable_irq)(struct adis *adis, bool enable);
50
51 bool has_paging;
52};
53
54struct adis {
55 struct spi_device *spi;
56 struct iio_trigger *trig;
57
58 const struct adis_data *data;
59
60 struct mutex txrx_lock;
61 struct spi_message msg;
62 struct spi_transfer *xfer;
63 unsigned int current_page;
64 void *buffer;
65
66 uint8_t tx[10] ____cacheline_aligned;
67 uint8_t rx[4];
68};
69
70int adis_init(struct adis *adis, struct iio_dev *indio_dev,
71 struct spi_device *spi, const struct adis_data *data);
72int adis_reset(struct adis *adis);
73
74int adis_write_reg(struct adis *adis, unsigned int reg,
75 unsigned int val, unsigned int size);
76int adis_read_reg(struct adis *adis, unsigned int reg,
77 unsigned int *val, unsigned int size);
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84
85static inline int adis_write_reg_8(struct adis *adis, unsigned int reg,
86 uint8_t val)
87{
88 return adis_write_reg(adis, reg, val, 1);
89}
90
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96
97static inline int adis_write_reg_16(struct adis *adis, unsigned int reg,
98 uint16_t val)
99{
100 return adis_write_reg(adis, reg, val, 2);
101}
102
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108
109static inline int adis_write_reg_32(struct adis *adis, unsigned int reg,
110 uint32_t val)
111{
112 return adis_write_reg(adis, reg, val, 4);
113}
114
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119
120
121static inline int adis_read_reg_16(struct adis *adis, unsigned int reg,
122 uint16_t *val)
123{
124 unsigned int tmp;
125 int ret;
126
127 ret = adis_read_reg(adis, reg, &tmp, 2);
128 *val = tmp;
129
130 return ret;
131}
132
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137
138
139static inline int adis_read_reg_32(struct adis *adis, unsigned int reg,
140 uint32_t *val)
141{
142 unsigned int tmp;
143 int ret;
144
145 ret = adis_read_reg(adis, reg, &tmp, 4);
146 *val = tmp;
147
148 return ret;
149}
150
151int adis_enable_irq(struct adis *adis, bool enable);
152int adis_check_status(struct adis *adis);
153
154int adis_initial_startup(struct adis *adis);
155
156int adis_single_conversion(struct iio_dev *indio_dev,
157 const struct iio_chan_spec *chan, unsigned int error_mask,
158 int *val);
159
160#define ADIS_VOLTAGE_CHAN(addr, si, chan, name, info_all, bits) { \
161 .type = IIO_VOLTAGE, \
162 .indexed = 1, \
163 .channel = (chan), \
164 .extend_name = name, \
165 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
166 BIT(IIO_CHAN_INFO_SCALE), \
167 .info_mask_shared_by_all = info_all, \
168 .address = (addr), \
169 .scan_index = (si), \
170 .scan_type = { \
171 .sign = 'u', \
172 .realbits = (bits), \
173 .storagebits = 16, \
174 .endianness = IIO_BE, \
175 }, \
176}
177
178#define ADIS_SUPPLY_CHAN(addr, si, info_all, bits) \
179 ADIS_VOLTAGE_CHAN(addr, si, 0, "supply", info_all, bits)
180
181#define ADIS_AUX_ADC_CHAN(addr, si, info_all, bits) \
182 ADIS_VOLTAGE_CHAN(addr, si, 1, NULL, info_all, bits)
183
184#define ADIS_TEMP_CHAN(addr, si, info_all, bits) { \
185 .type = IIO_TEMP, \
186 .indexed = 1, \
187 .channel = 0, \
188 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
189 BIT(IIO_CHAN_INFO_SCALE) | \
190 BIT(IIO_CHAN_INFO_OFFSET), \
191 .info_mask_shared_by_all = info_all, \
192 .address = (addr), \
193 .scan_index = (si), \
194 .scan_type = { \
195 .sign = 'u', \
196 .realbits = (bits), \
197 .storagebits = 16, \
198 .endianness = IIO_BE, \
199 }, \
200}
201
202#define ADIS_MOD_CHAN(_type, mod, addr, si, info_sep, info_all, bits) { \
203 .type = (_type), \
204 .modified = 1, \
205 .channel2 = IIO_MOD_ ## mod, \
206 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
207 info_sep, \
208 .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
209 .info_mask_shared_by_all = info_all, \
210 .address = (addr), \
211 .scan_index = (si), \
212 .scan_type = { \
213 .sign = 's', \
214 .realbits = (bits), \
215 .storagebits = 16, \
216 .endianness = IIO_BE, \
217 }, \
218}
219
220#define ADIS_ACCEL_CHAN(mod, addr, si, info_sep, info_all, bits) \
221 ADIS_MOD_CHAN(IIO_ACCEL, mod, addr, si, info_sep, info_all, bits)
222
223#define ADIS_GYRO_CHAN(mod, addr, si, info_sep, info_all, bits) \
224 ADIS_MOD_CHAN(IIO_ANGL_VEL, mod, addr, si, info_sep, info_all, bits)
225
226#define ADIS_INCLI_CHAN(mod, addr, si, info_sep, info_all, bits) \
227 ADIS_MOD_CHAN(IIO_INCLI, mod, addr, si, info_sep, info_all, bits)
228
229#define ADIS_ROT_CHAN(mod, addr, si, info_sep, info_all, bits) \
230 ADIS_MOD_CHAN(IIO_ROT, mod, addr, si, info_sep, info_all, bits)
231
232#ifdef CONFIG_IIO_ADIS_LIB_BUFFER
233
234int adis_setup_buffer_and_trigger(struct adis *adis,
235 struct iio_dev *indio_dev, irqreturn_t (*trigger_handler)(int, void *));
236void adis_cleanup_buffer_and_trigger(struct adis *adis,
237 struct iio_dev *indio_dev);
238
239int adis_probe_trigger(struct adis *adis, struct iio_dev *indio_dev);
240void adis_remove_trigger(struct adis *adis);
241
242int adis_update_scan_mode(struct iio_dev *indio_dev,
243 const unsigned long *scan_mask);
244
245#else
246
247static inline int adis_setup_buffer_and_trigger(struct adis *adis,
248 struct iio_dev *indio_dev, irqreturn_t (*trigger_handler)(int, void *))
249{
250 return 0;
251}
252
253static inline void adis_cleanup_buffer_and_trigger(struct adis *adis,
254 struct iio_dev *indio_dev)
255{
256}
257
258static inline int adis_probe_trigger(struct adis *adis,
259 struct iio_dev *indio_dev)
260{
261 return 0;
262}
263
264static inline void adis_remove_trigger(struct adis *adis)
265{
266}
267
268#define adis_update_scan_mode NULL
269
270#endif
271
272#ifdef CONFIG_DEBUG_FS
273
274int adis_debugfs_reg_access(struct iio_dev *indio_dev,
275 unsigned int reg, unsigned int writeval, unsigned int *readval);
276
277#else
278
279#define adis_debugfs_reg_access NULL
280
281#endif
282
283#endif
284