inet: frag: enforce memory limits earlier
[linux/fpc-iii.git] / drivers / iio / health / afe440x.h
blob1a0f247043ca14ab66e73c8fcc2191f57291fbdc
1 /*
2 * AFE440X Heart Rate Monitors and Low-Cost Pulse Oximeters
4 * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
5 * Andrew F. Davis <afd@ti.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * General Public License for more details.
17 #ifndef _AFE440X_H
18 #define _AFE440X_H
20 /* AFE440X registers */
21 #define AFE440X_CONTROL0 0x00
22 #define AFE440X_LED2STC 0x01
23 #define AFE440X_LED2ENDC 0x02
24 #define AFE440X_LED1LEDSTC 0x03
25 #define AFE440X_LED1LEDENDC 0x04
26 #define AFE440X_ALED2STC 0x05
27 #define AFE440X_ALED2ENDC 0x06
28 #define AFE440X_LED1STC 0x07
29 #define AFE440X_LED1ENDC 0x08
30 #define AFE440X_LED2LEDSTC 0x09
31 #define AFE440X_LED2LEDENDC 0x0a
32 #define AFE440X_ALED1STC 0x0b
33 #define AFE440X_ALED1ENDC 0x0c
34 #define AFE440X_LED2CONVST 0x0d
35 #define AFE440X_LED2CONVEND 0x0e
36 #define AFE440X_ALED2CONVST 0x0f
37 #define AFE440X_ALED2CONVEND 0x10
38 #define AFE440X_LED1CONVST 0x11
39 #define AFE440X_LED1CONVEND 0x12
40 #define AFE440X_ALED1CONVST 0x13
41 #define AFE440X_ALED1CONVEND 0x14
42 #define AFE440X_ADCRSTSTCT0 0x15
43 #define AFE440X_ADCRSTENDCT0 0x16
44 #define AFE440X_ADCRSTSTCT1 0x17
45 #define AFE440X_ADCRSTENDCT1 0x18
46 #define AFE440X_ADCRSTSTCT2 0x19
47 #define AFE440X_ADCRSTENDCT2 0x1a
48 #define AFE440X_ADCRSTSTCT3 0x1b
49 #define AFE440X_ADCRSTENDCT3 0x1c
50 #define AFE440X_PRPCOUNT 0x1d
51 #define AFE440X_CONTROL1 0x1e
52 #define AFE440X_LEDCNTRL 0x22
53 #define AFE440X_CONTROL2 0x23
54 #define AFE440X_ALARM 0x29
55 #define AFE440X_LED2VAL 0x2a
56 #define AFE440X_ALED2VAL 0x2b
57 #define AFE440X_LED1VAL 0x2c
58 #define AFE440X_ALED1VAL 0x2d
59 #define AFE440X_LED2_ALED2VAL 0x2e
60 #define AFE440X_LED1_ALED1VAL 0x2f
61 #define AFE440X_CONTROL3 0x31
62 #define AFE440X_PDNCYCLESTC 0x32
63 #define AFE440X_PDNCYCLEENDC 0x33
65 /* CONTROL0 register fields */
66 #define AFE440X_CONTROL0_REG_READ BIT(0)
67 #define AFE440X_CONTROL0_TM_COUNT_RST BIT(1)
68 #define AFE440X_CONTROL0_SW_RESET BIT(3)
70 /* CONTROL1 register fields */
71 #define AFE440X_CONTROL1_TIMEREN BIT(8)
73 /* TIAGAIN register fields */
74 #define AFE440X_TIAGAIN_ENSEPGAIN BIT(15)
76 /* CONTROL2 register fields */
77 #define AFE440X_CONTROL2_PDN_AFE BIT(0)
78 #define AFE440X_CONTROL2_PDN_RX BIT(1)
79 #define AFE440X_CONTROL2_DYNAMIC4 BIT(3)
80 #define AFE440X_CONTROL2_DYNAMIC3 BIT(4)
81 #define AFE440X_CONTROL2_DYNAMIC2 BIT(14)
82 #define AFE440X_CONTROL2_DYNAMIC1 BIT(20)
84 /* CONTROL3 register fields */
85 #define AFE440X_CONTROL3_CLKDIV GENMASK(2, 0)
87 /* CONTROL0 values */
88 #define AFE440X_CONTROL0_WRITE 0x0
89 #define AFE440X_CONTROL0_READ 0x1
91 #define AFE440X_INTENSITY_CHAN(_index, _mask) \
92 { \
93 .type = IIO_INTENSITY, \
94 .channel = _index, \
95 .address = _index, \
96 .scan_index = _index, \
97 .scan_type = { \
98 .sign = 's', \
99 .realbits = 24, \
100 .storagebits = 32, \
101 .endianness = IIO_CPU, \
102 }, \
103 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
104 _mask, \
105 .indexed = true, \
108 #define AFE440X_CURRENT_CHAN(_index) \
110 .type = IIO_CURRENT, \
111 .channel = _index, \
112 .address = _index, \
113 .scan_index = -1, \
114 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
115 BIT(IIO_CHAN_INFO_SCALE), \
116 .indexed = true, \
117 .output = true, \
120 struct afe440x_val_table {
121 int integer;
122 int fract;
125 #define AFE440X_TABLE_ATTR(_name, _table) \
126 static ssize_t _name ## _show(struct device *dev, \
127 struct device_attribute *attr, char *buf) \
129 ssize_t len = 0; \
130 int i; \
132 for (i = 0; i < ARRAY_SIZE(_table); i++) \
133 len += scnprintf(buf + len, PAGE_SIZE - len, "%d.%06u ", \
134 _table[i].integer, \
135 _table[i].fract); \
137 buf[len - 1] = '\n'; \
139 return len; \
141 static DEVICE_ATTR_RO(_name)
143 struct afe440x_attr {
144 struct device_attribute dev_attr;
145 unsigned int field;
146 const struct afe440x_val_table *val_table;
147 unsigned int table_size;
150 #define to_afe440x_attr(_dev_attr) \
151 container_of(_dev_attr, struct afe440x_attr, dev_attr)
153 #define AFE440X_ATTR(_name, _field, _table) \
154 struct afe440x_attr afe440x_attr_##_name = { \
155 .dev_attr = __ATTR(_name, (S_IRUGO | S_IWUSR), \
156 afe440x_show_register, \
157 afe440x_store_register), \
158 .field = _field, \
159 .val_table = _table, \
160 .table_size = ARRAY_SIZE(_table), \
163 #endif /* _AFE440X_H */