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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 * ABX500 core access functions.
8 * The abx500 interface is used for the Analog Baseband chip
9 * ab3100, ab3550, ab5500 and possibly comming. It is not used for
10 * ab4500 and ab8500 since they are another family of chip.
11 *
12 * Author: Mattias Wallin <mattias.wallin@stericsson.com>
13 * Author: Mattias Nilsson <mattias.i.nilsson@stericsson.com>
14 * Author: Bengt Jonsson <bengt.g.jonsson@stericsson.com>
15 * Author: Rickard Andersson <rickard.andersson@stericsson.com>
16 */
17
18#include <linux/device.h>
19#include <linux/regulator/machine.h>
20
21#ifndef MFD_ABX500_H
22#define MFD_ABX500_H
23
24#define AB3100_P1A 0xc0
25#define AB3100_P1B 0xc1
26#define AB3100_P1C 0xc2
27#define AB3100_P1D 0xc3
28#define AB3100_P1E 0xc4
29#define AB3100_P1F 0xc5
30#define AB3100_P1G 0xc6
31#define AB3100_R2A 0xc7
32#define AB3100_R2B 0xc8
33#define AB3550_P1A 0x10
34#define AB5500_1_0 0x20
35#define AB5500_2_0 0x21
36#define AB5500_2_1 0x22
37
38/*
39 * AB3100, EVENTA1, A2 and A3 event register flags
40 * these are catenated into a single 32-bit flag in the code
41 * for event notification broadcasts.
42 */
43#define AB3100_EVENTA1_ONSWA (0x01<<16)
44#define AB3100_EVENTA1_ONSWB (0x02<<16)
45#define AB3100_EVENTA1_ONSWC (0x04<<16)
46#define AB3100_EVENTA1_DCIO (0x08<<16)
47#define AB3100_EVENTA1_OVER_TEMP (0x10<<16)
48#define AB3100_EVENTA1_SIM_OFF (0x20<<16)
49#define AB3100_EVENTA1_VBUS (0x40<<16)
50#define AB3100_EVENTA1_VSET_USB (0x80<<16)
51
52#define AB3100_EVENTA2_READY_TX (0x01<<8)
53#define AB3100_EVENTA2_READY_RX (0x02<<8)
54#define AB3100_EVENTA2_OVERRUN_ERROR (0x04<<8)
55#define AB3100_EVENTA2_FRAMING_ERROR (0x08<<8)
56#define AB3100_EVENTA2_CHARG_OVERCURRENT (0x10<<8)
57#define AB3100_EVENTA2_MIDR (0x20<<8)
58#define AB3100_EVENTA2_BATTERY_REM (0x40<<8)
59#define AB3100_EVENTA2_ALARM (0x80<<8)
60
61#define AB3100_EVENTA3_ADC_TRIG5 (0x01)
62#define AB3100_EVENTA3_ADC_TRIG4 (0x02)
63#define AB3100_EVENTA3_ADC_TRIG3 (0x04)
64#define AB3100_EVENTA3_ADC_TRIG2 (0x08)
65#define AB3100_EVENTA3_ADC_TRIGVBAT (0x10)
66#define AB3100_EVENTA3_ADC_TRIGVTX (0x20)
67#define AB3100_EVENTA3_ADC_TRIG1 (0x40)
68#define AB3100_EVENTA3_ADC_TRIG0 (0x80)
69
70/* AB3100, STR register flags */
71#define AB3100_STR_ONSWA (0x01)
72#define AB3100_STR_ONSWB (0x02)
73#define AB3100_STR_ONSWC (0x04)
74#define AB3100_STR_DCIO (0x08)
75#define AB3100_STR_BOOT_MODE (0x10)
76#define AB3100_STR_SIM_OFF (0x20)
77#define AB3100_STR_BATT_REMOVAL (0x40)
78#define AB3100_STR_VBUS (0x80)
79
80/*
81 * AB3100 contains 8 regulators, one external regulator controller
82 * and a buck converter, further the LDO E and buck converter can
83 * have separate settings if they are in sleep mode, this is
84 * modeled as a separate regulator.
85 */
86#define AB3100_NUM_REGULATORS 10
87
88/**
89 * struct ab3100
90 * @access_mutex: lock out concurrent accesses to the AB3100 registers
91 * @dev: pointer to the containing device
92 * @i2c_client: I2C client for this chip
93 * @testreg_client: secondary client for test registers
94 * @chip_name: name of this chip variant
95 * @chip_id: 8 bit chip ID for this chip variant
96 * @event_subscribers: event subscribers are listed here
97 * @startup_events: a copy of the first reading of the event registers
98 * @startup_events_read: whether the first events have been read
99 *
100 * This struct is PRIVATE and devices using it should NOT
101 * access ANY fields. It is used as a token for calling the
102 * AB3100 functions.
103 */
104struct ab3100 {
105 struct mutex access_mutex;
106 struct device *dev;
107 struct i2c_client *i2c_client;
108 struct i2c_client *testreg_client;
109 char chip_name[32];
110 u8 chip_id;
111 struct blocking_notifier_head event_subscribers;
112 u8 startup_events[3];
113 bool startup_events_read;
114};
115
116/**
117 * struct ab3100_platform_data
118 * Data supplied to initialize board connections to the AB3100
119 * @reg_constraints: regulator constraints for target board
120 * the order of these constraints are: LDO A, C, D, E,
121 * F, G, H, K, EXT and BUCK.
122 * @reg_initvals: initial values for the regulator registers
123 * plus two sleep settings for LDO E and the BUCK converter.
124 * exactly AB3100_NUM_REGULATORS+2 values must be sent in.
125 * Order: LDO A, C, E, E sleep, F, G, H, K, EXT, BUCK,
126 * BUCK sleep, LDO D. (LDO D need to be initialized last.)
127 * @external_voltage: voltage level of the external regulator.
128 */
129struct ab3100_platform_data {
130 struct regulator_init_data reg_constraints[AB3100_NUM_REGULATORS];
131 u8 reg_initvals[AB3100_NUM_REGULATORS+2];
132 int external_voltage;
133};
134
135int ab3100_event_register(struct ab3100 *ab3100,
136 struct notifier_block *nb);
137int ab3100_event_unregister(struct ab3100 *ab3100,
138 struct notifier_block *nb);
139
140/* AB3550, STR register flags */
141#define AB3550_STR_ONSWA (0x01)
142#define AB3550_STR_ONSWB (0x02)
143#define AB3550_STR_ONSWC (0x04)
144#define AB3550_STR_DCIO (0x08)
145#define AB3550_STR_BOOT_MODE (0x10)
146#define AB3550_STR_SIM_OFF (0x20)
147#define AB3550_STR_BATT_REMOVAL (0x40)
148#define AB3550_STR_VBUS (0x80)
149
150/* Interrupt mask registers */
151#define AB3550_IMR1 0x29
152#define AB3550_IMR2 0x2a
153#define AB3550_IMR3 0x2b
154#define AB3550_IMR4 0x2c
155#define AB3550_IMR5 0x2d
156
157enum ab3550_devid {
158 AB3550_DEVID_ADC,
159 AB3550_DEVID_DAC,
160 AB3550_DEVID_LEDS,
161 AB3550_DEVID_POWER,
162 AB3550_DEVID_REGULATORS,
163 AB3550_DEVID_SIM,
164 AB3550_DEVID_UART,
165 AB3550_DEVID_RTC,
166 AB3550_DEVID_CHARGER,
167 AB3550_DEVID_FUELGAUGE,
168 AB3550_DEVID_VIBRATOR,
169 AB3550_DEVID_CODEC,
170 AB3550_NUM_DEVICES,
171};
172
173/**
174 * struct abx500_init_setting
175 * Initial value of the registers for driver to use during setup.
176 */
177struct abx500_init_settings {
178 u8 bank;
179 u8 reg;
180 u8 setting;
181};
182
183/**
184 * struct ab3550_platform_data
185 * Data supplied to initialize board connections to the AB3550
186 */
187struct ab3550_platform_data {
188 struct {unsigned int base; unsigned int count; } irq;
189 void *dev_data[AB3550_NUM_DEVICES];
190 size_t dev_data_sz[AB3550_NUM_DEVICES];
191 struct abx500_init_settings *init_settings;
192 unsigned int init_settings_sz;
193};
194
195int abx500_set_register_interruptible(struct device *dev, u8 bank, u8 reg,
196 u8 value);
197int abx500_get_register_interruptible(struct device *dev, u8 bank, u8 reg,
198 u8 *value);
199int abx500_get_register_page_interruptible(struct device *dev, u8 bank,
200 u8 first_reg, u8 *regvals, u8 numregs);
201int abx500_set_register_page_interruptible(struct device *dev, u8 bank,
202 u8 first_reg, u8 *regvals, u8 numregs);
203/**
204 * abx500_mask_and_set_register_inerruptible() - Modifies selected bits of a
205 * target register
206 *
207 * @dev: The AB sub device.
208 * @bank: The i2c bank number.
209 * @bitmask: The bit mask to use.
210 * @bitvalues: The new bit values.
211 *
212 * Updates the value of an AB register:
213 * value -> ((value & ~bitmask) | (bitvalues & bitmask))
214 */
215int abx500_mask_and_set_register_interruptible(struct device *dev, u8 bank,
216 u8 reg, u8 bitmask, u8 bitvalues);
217int abx500_get_chip_id(struct device *dev);
218int abx500_event_registers_startup_state_get(struct device *dev, u8 *event);
219int abx500_startup_irq_enabled(struct device *dev, unsigned int irq);
220
221struct abx500_ops {
222 int (*get_chip_id) (struct device *);
223 int (*get_register) (struct device *, u8, u8, u8 *);
224 int (*set_register) (struct device *, u8, u8, u8);
225 int (*get_register_page) (struct device *, u8, u8, u8 *, u8);
226 int (*set_register_page) (struct device *, u8, u8, u8 *, u8);
227 int (*mask_and_set_register) (struct device *, u8, u8, u8, u8);
228 int (*event_registers_startup_state_get) (struct device *, u8 *);
229 int (*startup_irq_enabled) (struct device *, unsigned int);
230};
231
232int abx500_register_ops(struct device *core_dev, struct abx500_ops *ops);
233#endif
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