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5141d4158c
Specs are available here :
https://www.nxp.com/docs/en/application-note/AN264.pdf
This is a simple model supporting the basic registers for led and GPIO
mode. The device also supports two blinking rates but not the model
yet.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180530064049.27976-7-clg@kaod.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
/*
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* PCA9552 I2C LED blinker registers
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*
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* Copyright (c) 2017-2018, IBM Corporation.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* later. See the COPYING file in the top-level directory.
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*/
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#ifndef PCA9552_REGS_H
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#define PCA9552_REGS_H
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/*
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* Bits [0:3] are used to address a specific register.
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*/
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#define PCA9552_INPUT0 0 /* read only input register 0 */
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#define PCA9552_INPUT1 1 /* read only input register 1 */
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#define PCA9552_PSC0 2 /* read/write frequency prescaler 0 */
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#define PCA9552_PWM0 3 /* read/write PWM register 0 */
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#define PCA9552_PSC1 4 /* read/write frequency prescaler 1 */
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#define PCA9552_PWM1 5 /* read/write PWM register 1 */
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#define PCA9552_LS0 6 /* read/write LED0 to LED3 selector */
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#define PCA9552_LS1 7 /* read/write LED4 to LED7 selector */
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#define PCA9552_LS2 8 /* read/write LED8 to LED11 selector */
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#define PCA9552_LS3 9 /* read/write LED12 to LED15 selector */
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/*
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* Bit [4] is used to activate the Auto-Increment option of the
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* register address
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*/
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#define PCA9552_AUTOINC (1 << 4)
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#endif
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