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Commit | Line | Data |
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7d5ac918 PK |
1 | /* |
2 | * TWL4030 input | |
3 | * | |
4 | * Copyright (C) 2015 Paul Kocialkowski <contact@paulk.fr> | |
5 | * | |
6 | * SPDX-License-Identifier: GPL-2.0+ | |
7 | */ | |
8 | ||
9 | #include <twl4030.h> | |
10 | ||
11 | int twl4030_input_power_button(void) | |
12 | { | |
13 | u8 data; | |
14 | ||
15 | twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, | |
16 | TWL4030_PM_MASTER_STS_HW_CONDITIONS, &data); | |
17 | ||
18 | if (data & TWL4030_PM_MASTER_STS_HW_CONDITIONS_PWON) | |
19 | return 1; | |
20 | ||
21 | return 0; | |
22 | } | |
23 | ||
24 | int twl4030_input_charger(void) | |
25 | { | |
26 | u8 data; | |
27 | ||
28 | twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, | |
29 | TWL4030_PM_MASTER_STS_HW_CONDITIONS, &data); | |
30 | ||
31 | if (data & TWL4030_PM_MASTER_STS_HW_CONDITIONS_CHG) | |
32 | return 1; | |
33 | ||
34 | return 0; | |
35 | } | |
36 | ||
37 | int twl4030_input_usb(void) | |
38 | { | |
39 | u8 data; | |
40 | ||
41 | twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, | |
42 | TWL4030_PM_MASTER_STS_HW_CONDITIONS, &data); | |
43 | ||
44 | if (data & TWL4030_PM_MASTER_STS_HW_CONDITIONS_USB || | |
45 | data & TWL4030_PM_MASTER_STS_HW_CONDITIONS_VBUS) | |
46 | return 1; | |
47 | ||
48 | return 0; | |
49 | } | |
a4c8bbbc PK |
50 | |
51 | int twl4030_keypad_scan(unsigned char *matrix) | |
52 | { | |
53 | u8 data; | |
54 | u8 c, r; | |
55 | ||
56 | twl4030_i2c_read_u8(TWL4030_CHIP_KEYPAD, | |
57 | TWL4030_KEYPAD_KEYP_CTRL_REG, &data); | |
58 | ||
59 | data |= TWL4030_KEYPAD_CTRL_SOFT_NRST | TWL4030_KEYPAD_CTRL_KBD_ON; | |
60 | data &= ~TWL4030_KEYPAD_CTRL_SOFTMODEN; | |
61 | ||
62 | twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD, | |
63 | TWL4030_KEYPAD_KEYP_CTRL_REG, data); | |
64 | ||
65 | for (c = 0; c < 8; c++) { | |
66 | data = 0xff & ~(1 << c); | |
67 | twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD, | |
68 | TWL4030_KEYPAD_KBC_REG, data); | |
69 | ||
70 | data = 0xff; | |
71 | twl4030_i2c_read_u8(TWL4030_CHIP_KEYPAD, | |
72 | TWL4030_KEYPAD_KBR_REG, &data); | |
73 | ||
74 | for (r = 0; r < 8; r++) | |
75 | matrix[c * 8 + r] = !(data & (1 << r)); | |
76 | } | |
77 | ||
78 | data = 0xff & ~(TWL4030_KEYPAD_CTRL_SOFT_NRST); | |
79 | twl4030_i2c_write_u8(TWL4030_CHIP_KEYPAD, | |
80 | TWL4030_KEYPAD_KEYP_CTRL_REG, data); | |
81 | ||
82 | return 0; | |
83 | } | |
84 | ||
85 | int twl4030_keypad_key(unsigned char *matrix, u8 c, u8 r) | |
86 | { | |
87 | return matrix[c * 8 + r]; | |
88 | } |