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1 | /* |
2 | * PCA9552 I2C LED blinker registers | |
3 | * | |
4 | * Copyright (c) 2017-2018, IBM Corporation. | |
5 | * | |
6 | * This work is licensed under the terms of the GNU GPL, version 2 or | |
7 | * later. See the COPYING file in the top-level directory. | |
8 | */ | |
9 | #ifndef PCA9552_REGS_H | |
10 | #define PCA9552_REGS_H | |
11 | ||
12 | /* | |
13 | * Bits [0:3] are used to address a specific register. | |
14 | */ | |
15 | #define PCA9552_INPUT0 0 /* read only input register 0 */ | |
16 | #define PCA9552_INPUT1 1 /* read only input register 1 */ | |
17 | #define PCA9552_PSC0 2 /* read/write frequency prescaler 0 */ | |
18 | #define PCA9552_PWM0 3 /* read/write PWM register 0 */ | |
19 | #define PCA9552_PSC1 4 /* read/write frequency prescaler 1 */ | |
20 | #define PCA9552_PWM1 5 /* read/write PWM register 1 */ | |
21 | #define PCA9552_LS0 6 /* read/write LED0 to LED3 selector */ | |
22 | #define PCA9552_LS1 7 /* read/write LED4 to LED7 selector */ | |
23 | #define PCA9552_LS2 8 /* read/write LED8 to LED11 selector */ | |
24 | #define PCA9552_LS3 9 /* read/write LED12 to LED15 selector */ | |
25 | ||
26 | /* | |
27 | * Bit [4] is used to activate the Auto-Increment option of the | |
28 | * register address | |
29 | */ | |
30 | #define PCA9552_AUTOINC (1 << 4) | |
31 | ||
32 | #endif |