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27e34995 RV |
1 | /* |
2 | * Copyright (C) ST-Ericsson SA 2010 | |
3 | * | |
4 | * License Terms: GNU General Public License, version 2 | |
5 | * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson | |
6 | */ | |
7 | ||
8 | #ifndef __LINUX_MFD_STMPE_H | |
9 | #define __LINUX_MFD_STMPE_H | |
10 | ||
313162d0 PG |
11 | #include <linux/mutex.h> |
12 | ||
13 | struct device; | |
9c9e3214 | 14 | struct regulator; |
27e34995 RV |
15 | |
16 | enum stmpe_block { | |
17 | STMPE_BLOCK_GPIO = 1 << 0, | |
18 | STMPE_BLOCK_KEYPAD = 1 << 1, | |
19 | STMPE_BLOCK_TOUCHSCREEN = 1 << 2, | |
20 | STMPE_BLOCK_ADC = 1 << 3, | |
21 | STMPE_BLOCK_PWM = 1 << 4, | |
22 | STMPE_BLOCK_ROTATOR = 1 << 5, | |
23 | }; | |
24 | ||
25 | enum stmpe_partnum { | |
1cda2394 | 26 | STMPE610, |
7f7f4ea1 | 27 | STMPE801, |
27e34995 RV |
28 | STMPE811, |
29 | STMPE1601, | |
230f13a5 | 30 | STMPE1801, |
27e34995 RV |
31 | STMPE2401, |
32 | STMPE2403, | |
e31f9b82 | 33 | STMPE_NBR_PARTS |
27e34995 RV |
34 | }; |
35 | ||
36 | /* | |
37 | * For registers whose locations differ on variants, the correct address is | |
38 | * obtained by indexing stmpe->regs with one of the following. | |
39 | */ | |
40 | enum { | |
41 | STMPE_IDX_CHIP_ID, | |
42 | STMPE_IDX_ICR_LSB, | |
43 | STMPE_IDX_IER_LSB, | |
230f13a5 | 44 | STMPE_IDX_ISR_LSB, |
27e34995 RV |
45 | STMPE_IDX_ISR_MSB, |
46 | STMPE_IDX_GPMR_LSB, | |
47 | STMPE_IDX_GPSR_LSB, | |
48 | STMPE_IDX_GPCR_LSB, | |
49 | STMPE_IDX_GPDR_LSB, | |
50 | STMPE_IDX_GPEDR_MSB, | |
51 | STMPE_IDX_GPRER_LSB, | |
52 | STMPE_IDX_GPFER_LSB, | |
80e1dd82 LW |
53 | STMPE_IDX_GPPUR_LSB, |
54 | STMPE_IDX_GPPDR_LSB, | |
27e34995 RV |
55 | STMPE_IDX_GPAFR_U_MSB, |
56 | STMPE_IDX_IEGPIOR_LSB, | |
230f13a5 | 57 | STMPE_IDX_ISGPIOR_LSB, |
27e34995 RV |
58 | STMPE_IDX_ISGPIOR_MSB, |
59 | STMPE_IDX_MAX, | |
60 | }; | |
61 | ||
62 | ||
63 | struct stmpe_variant_info; | |
1a6e4b74 | 64 | struct stmpe_client_info; |
27e34995 RV |
65 | |
66 | /** | |
67 | * struct stmpe - STMPE MFD structure | |
9c9e3214 LW |
68 | * @vcc: optional VCC regulator |
69 | * @vio: optional VIO regulator | |
27e34995 RV |
70 | * @lock: lock protecting I/O operations |
71 | * @irq_lock: IRQ bus lock | |
72 | * @dev: device, mostly for dev_dbg() | |
76f93992 | 73 | * @irq_domain: IRQ domain |
1a6e4b74 VK |
74 | * @client: client - i2c or spi |
75 | * @ci: client specific information | |
4dcaa6b6 | 76 | * @partnum: part number |
27e34995 RV |
77 | * @variant: the detected STMPE model number |
78 | * @regs: list of addresses of registers which are at different addresses on | |
79 | * different variants. Indexed by one of STMPE_IDX_*. | |
73de16db | 80 | * @irq: irq number for stmpe |
27e34995 RV |
81 | * @num_gpios: number of gpios, differs for variants |
82 | * @ier: cache of IER registers for bus_lock | |
83 | * @oldier: cache of IER registers for bus_lock | |
84 | * @pdata: platform data | |
85 | */ | |
86 | struct stmpe { | |
9c9e3214 LW |
87 | struct regulator *vcc; |
88 | struct regulator *vio; | |
27e34995 RV |
89 | struct mutex lock; |
90 | struct mutex irq_lock; | |
91 | struct device *dev; | |
76f93992 | 92 | struct irq_domain *domain; |
1a6e4b74 VK |
93 | void *client; |
94 | struct stmpe_client_info *ci; | |
27e34995 RV |
95 | enum stmpe_partnum partnum; |
96 | struct stmpe_variant_info *variant; | |
97 | const u8 *regs; | |
98 | ||
73de16db | 99 | int irq; |
27e34995 RV |
100 | int num_gpios; |
101 | u8 ier[2]; | |
102 | u8 oldier[2]; | |
103 | struct stmpe_platform_data *pdata; | |
104 | }; | |
105 | ||
106 | extern int stmpe_reg_write(struct stmpe *stmpe, u8 reg, u8 data); | |
107 | extern int stmpe_reg_read(struct stmpe *stmpe, u8 reg); | |
108 | extern int stmpe_block_read(struct stmpe *stmpe, u8 reg, u8 length, | |
109 | u8 *values); | |
110 | extern int stmpe_block_write(struct stmpe *stmpe, u8 reg, u8 length, | |
111 | const u8 *values); | |
112 | extern int stmpe_set_bits(struct stmpe *stmpe, u8 reg, u8 mask, u8 val); | |
113 | extern int stmpe_set_altfunc(struct stmpe *stmpe, u32 pins, | |
114 | enum stmpe_block block); | |
115 | extern int stmpe_enable(struct stmpe *stmpe, unsigned int blocks); | |
116 | extern int stmpe_disable(struct stmpe *stmpe, unsigned int blocks); | |
117 | ||
b8e9cf0b WS |
118 | #define STMPE_GPIO_NOREQ_811_TOUCH (0xf0) |
119 | ||
27e34995 RV |
120 | /** |
121 | * struct stmpe_platform_data - STMPE platform data | |
122 | * @id: device id to distinguish between multiple STMPEs on the same board | |
123 | * @blocks: bitmask of blocks to enable (use STMPE_BLOCK_*) | |
124 | * @irq_trigger: IRQ trigger to use for the interrupt to the host | |
5981f4e6 SI |
125 | * @autosleep: bool to enable/disable stmpe autosleep |
126 | * @autosleep_timeout: inactivity timeout in milliseconds for autosleep | |
73de16db VK |
127 | * @irq_over_gpio: true if gpio is used to get irq |
128 | * @irq_gpio: gpio number over which irq will be requested (significant only if | |
129 | * irq_over_gpio is true) | |
27e34995 RV |
130 | */ |
131 | struct stmpe_platform_data { | |
132 | int id; | |
133 | unsigned int blocks; | |
27e34995 | 134 | unsigned int irq_trigger; |
5981f4e6 | 135 | bool autosleep; |
73de16db VK |
136 | bool irq_over_gpio; |
137 | int irq_gpio; | |
5981f4e6 | 138 | int autosleep_timeout; |
27e34995 RV |
139 | }; |
140 | ||
27e34995 | 141 | #endif |