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14fa5691 LW |
1 | /* |
2 | * Copyright (C) 2007-2009 ST-Ericsson AB | |
3 | * License terms: GNU General Public License (GPL) version 2 | |
4 | * AB3100 core access functions | |
5 | * Author: Linus Walleij <linus.walleij@stericsson.com> | |
6 | */ | |
7 | ||
8 | #include <linux/device.h> | |
d619bc14 | 9 | #include <linux/regulator/machine.h> |
14fa5691 LW |
10 | |
11 | #ifndef MFD_AB3100_H | |
12 | #define MFD_AB3100_H | |
13 | ||
14 | #define ABUNKNOWN 0 | |
15 | #define AB3000 1 | |
16 | #define AB3100 2 | |
17 | ||
18 | /* | |
19 | * AB3100, EVENTA1, A2 and A3 event register flags | |
20 | * these are catenated into a single 32-bit flag in the code | |
21 | * for event notification broadcasts. | |
22 | */ | |
23 | #define AB3100_EVENTA1_ONSWA (0x01<<16) | |
24 | #define AB3100_EVENTA1_ONSWB (0x02<<16) | |
25 | #define AB3100_EVENTA1_ONSWC (0x04<<16) | |
26 | #define AB3100_EVENTA1_DCIO (0x08<<16) | |
27 | #define AB3100_EVENTA1_OVER_TEMP (0x10<<16) | |
28 | #define AB3100_EVENTA1_SIM_OFF (0x20<<16) | |
29 | #define AB3100_EVENTA1_VBUS (0x40<<16) | |
30 | #define AB3100_EVENTA1_VSET_USB (0x80<<16) | |
31 | ||
32 | #define AB3100_EVENTA2_READY_TX (0x01<<8) | |
33 | #define AB3100_EVENTA2_READY_RX (0x02<<8) | |
34 | #define AB3100_EVENTA2_OVERRUN_ERROR (0x04<<8) | |
35 | #define AB3100_EVENTA2_FRAMING_ERROR (0x08<<8) | |
36 | #define AB3100_EVENTA2_CHARG_OVERCURRENT (0x10<<8) | |
37 | #define AB3100_EVENTA2_MIDR (0x20<<8) | |
38 | #define AB3100_EVENTA2_BATTERY_REM (0x40<<8) | |
39 | #define AB3100_EVENTA2_ALARM (0x80<<8) | |
40 | ||
41 | #define AB3100_EVENTA3_ADC_TRIG5 (0x01) | |
42 | #define AB3100_EVENTA3_ADC_TRIG4 (0x02) | |
43 | #define AB3100_EVENTA3_ADC_TRIG3 (0x04) | |
44 | #define AB3100_EVENTA3_ADC_TRIG2 (0x08) | |
45 | #define AB3100_EVENTA3_ADC_TRIGVBAT (0x10) | |
46 | #define AB3100_EVENTA3_ADC_TRIGVTX (0x20) | |
47 | #define AB3100_EVENTA3_ADC_TRIG1 (0x40) | |
48 | #define AB3100_EVENTA3_ADC_TRIG0 (0x80) | |
49 | ||
50 | /* AB3100, STR register flags */ | |
51 | #define AB3100_STR_ONSWA (0x01) | |
52 | #define AB3100_STR_ONSWB (0x02) | |
53 | #define AB3100_STR_ONSWC (0x04) | |
54 | #define AB3100_STR_DCIO (0x08) | |
55 | #define AB3100_STR_BOOT_MODE (0x10) | |
56 | #define AB3100_STR_SIM_OFF (0x20) | |
57 | #define AB3100_STR_BATT_REMOVAL (0x40) | |
58 | #define AB3100_STR_VBUS (0x80) | |
59 | ||
d619bc14 LW |
60 | /* |
61 | * AB3100 contains 8 regulators, one external regulator controller | |
62 | * and a buck converter, further the LDO E and buck converter can | |
63 | * have separate settings if they are in sleep mode, this is | |
64 | * modeled as a separate regulator. | |
65 | */ | |
66 | #define AB3100_NUM_REGULATORS 10 | |
67 | ||
14fa5691 LW |
68 | /** |
69 | * struct ab3100 | |
70 | * @access_mutex: lock out concurrent accesses to the AB3100 registers | |
71 | * @dev: pointer to the containing device | |
72 | * @i2c_client: I2C client for this chip | |
73 | * @testreg_client: secondary client for test registers | |
74 | * @chip_name: name of this chip variant | |
75 | * @chip_id: 8 bit chip ID for this chip variant | |
14fa5691 LW |
76 | * @event_subscribers: event subscribers are listed here |
77 | * @startup_events: a copy of the first reading of the event registers | |
78 | * @startup_events_read: whether the first events have been read | |
79 | * | |
80 | * This struct is PRIVATE and devices using it should NOT | |
81 | * access ANY fields. It is used as a token for calling the | |
82 | * AB3100 functions. | |
83 | */ | |
84 | struct ab3100 { | |
85 | struct mutex access_mutex; | |
86 | struct device *dev; | |
87 | struct i2c_client *i2c_client; | |
88 | struct i2c_client *testreg_client; | |
89 | char chip_name[32]; | |
90 | u8 chip_id; | |
14fa5691 LW |
91 | struct blocking_notifier_head event_subscribers; |
92 | u32 startup_events; | |
93 | bool startup_events_read; | |
94 | }; | |
95 | ||
d619bc14 LW |
96 | /** |
97 | * struct ab3100_platform_data | |
98 | * Data supplied to initialize board connections to the AB3100 | |
99 | * @reg_constraints: regulator constraints for target board | |
100 | * the order of these constraints are: LDO A, C, D, E, | |
101 | * F, G, H, K, EXT and BUCK. | |
102 | * @reg_initvals: initial values for the regulator registers | |
103 | * plus two sleep settings for LDO E and the BUCK converter. | |
104 | * exactly AB3100_NUM_REGULATORS+2 values must be sent in. | |
105 | * Order: LDO A, C, E, E sleep, F, G, H, K, EXT, BUCK, | |
106 | * BUCK sleep, LDO D. (LDO D need to be initialized last.) | |
107 | * @external_voltage: voltage level of the external regulator. | |
108 | */ | |
109 | struct ab3100_platform_data { | |
110 | struct regulator_init_data reg_constraints[AB3100_NUM_REGULATORS]; | |
111 | u8 reg_initvals[AB3100_NUM_REGULATORS+2]; | |
112 | int external_voltage; | |
113 | }; | |
114 | ||
956f25a6 LW |
115 | int ab3100_set_register_interruptible(struct ab3100 *ab3100, u8 reg, u8 regval); |
116 | int ab3100_get_register_interruptible(struct ab3100 *ab3100, u8 reg, u8 *regval); | |
117 | int ab3100_get_register_page_interruptible(struct ab3100 *ab3100, | |
14fa5691 | 118 | u8 first_reg, u8 *regvals, u8 numregs); |
956f25a6 | 119 | int ab3100_mask_and_set_register_interruptible(struct ab3100 *ab3100, |
14fa5691 LW |
120 | u8 reg, u8 andmask, u8 ormask); |
121 | u8 ab3100_get_chip_type(struct ab3100 *ab3100); | |
122 | int ab3100_event_register(struct ab3100 *ab3100, | |
123 | struct notifier_block *nb); | |
124 | int ab3100_event_unregister(struct ab3100 *ab3100, | |
125 | struct notifier_block *nb); | |
126 | int ab3100_event_registers_startup_state_get(struct ab3100 *ab3100, | |
127 | u32 *fatevent); | |
128 | ||
129 | #endif |