diff options
| author | Cédric Le Goater | 2018-06-08 14:15:32 +0200 |
|---|---|---|
| committer | Peter Maydell | 2018-06-08 14:15:32 +0200 |
| commit | 5141d4158cf0dbdc13e42f175d1718d40b789f75 (patch) | |
| tree | bf02ff272c838cc6688e7887ee236a68b1498a5f /include/hw/misc/pca9552_regs.h | |
| parent | aspeed: Add EEPROM I2C devices (diff) | |
| download | qemu-5141d4158cf0dbdc13e42f175d1718d40b789f75.tar.gz qemu-5141d4158cf0dbdc13e42f175d1718d40b789f75.tar.xz qemu-5141d4158cf0dbdc13e42f175d1718d40b789f75.zip | |
misc: add pca9552 LED blinker model
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>
Diffstat (limited to 'include/hw/misc/pca9552_regs.h')
| -rw-r--r-- | include/hw/misc/pca9552_regs.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/hw/misc/pca9552_regs.h b/include/hw/misc/pca9552_regs.h new file mode 100644 index 0000000000..d8051cfbd6 --- /dev/null +++ b/include/hw/misc/pca9552_regs.h @@ -0,0 +1,32 @@ +/* + * PCA9552 I2C LED blinker registers + * + * Copyright (c) 2017-2018, IBM Corporation. + * + * This work is licensed under the terms of the GNU GPL, version 2 or + * later. See the COPYING file in the top-level directory. + */ +#ifndef PCA9552_REGS_H +#define PCA9552_REGS_H + +/* + * Bits [0:3] are used to address a specific register. + */ +#define PCA9552_INPUT0 0 /* read only input register 0 */ +#define PCA9552_INPUT1 1 /* read only input register 1 */ +#define PCA9552_PSC0 2 /* read/write frequency prescaler 0 */ +#define PCA9552_PWM0 3 /* read/write PWM register 0 */ +#define PCA9552_PSC1 4 /* read/write frequency prescaler 1 */ +#define PCA9552_PWM1 5 /* read/write PWM register 1 */ +#define PCA9552_LS0 6 /* read/write LED0 to LED3 selector */ +#define PCA9552_LS1 7 /* read/write LED4 to LED7 selector */ +#define PCA9552_LS2 8 /* read/write LED8 to LED11 selector */ +#define PCA9552_LS3 9 /* read/write LED12 to LED15 selector */ + +/* + * Bit [4] is used to activate the Auto-Increment option of the + * register address + */ +#define PCA9552_AUTOINC (1 << 4) + +#endif |