diff options
| author | Cédric Le Goater <clg@kaod.org> | 2018-06-08 13:15:32 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2018-06-08 13:15:32 +0100 |
| commit | 5141d4158cf0dbdc13e42f175d1718d40b789f75 (patch) | |
| tree | bf02ff272c838cc6688e7887ee236a68b1498a5f /include/hw/misc/pca9552.h | |
| parent | 3d165f12db211c0c17e937a87551d869b25a82db (diff) | |
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.h')
| -rw-r--r-- | include/hw/misc/pca9552.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/hw/misc/pca9552.h b/include/hw/misc/pca9552.h new file mode 100644 index 0000000000..ebb43c63fe --- /dev/null +++ b/include/hw/misc/pca9552.h @@ -0,0 +1,32 @@ +/* + * PCA9552 I2C LED blinker + * + * 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_H +#define PCA9552_H + +#include "hw/i2c/i2c.h" + +#define TYPE_PCA9552 "pca9552" +#define PCA9552(obj) OBJECT_CHECK(PCA9552State, (obj), TYPE_PCA9552) + +#define PCA9552_NR_REGS 10 + +typedef struct PCA9552State { + /*< private >*/ + I2CSlave i2c; + /*< public >*/ + + uint8_t len; + uint8_t pointer; + + uint8_t regs[PCA9552_NR_REGS]; + uint8_t max_reg; + uint8_t nr_leds; +} PCA9552State; + +#endif |