diff options
Diffstat (limited to 'include/hw/gpio/pca9552.h')
-rw-r--r-- | include/hw/gpio/pca9552.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/hw/gpio/pca9552.h b/include/hw/gpio/pca9552.h new file mode 100644 index 0000000..c36525f --- /dev/null +++ b/include/hw/gpio/pca9552.h @@ -0,0 +1,38 @@ +/* + * 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" +#include "qom/object.h" + +#define TYPE_PCA9552 "pca9552" +#define TYPE_PCA955X "pca955x" +typedef struct PCA955xState PCA955xState; +DECLARE_INSTANCE_CHECKER(PCA955xState, PCA955X, + TYPE_PCA955X) + +#define PCA955X_NR_REGS 10 +#define PCA955X_PIN_COUNT_MAX 16 + +struct PCA955xState { + /*< private >*/ + I2CSlave i2c; + /*< public >*/ + + uint8_t len; + uint8_t pointer; + + uint8_t regs[PCA955X_NR_REGS]; + qemu_irq gpio_out[PCA955X_PIN_COUNT_MAX]; + uint8_t ext_state[PCA955X_PIN_COUNT_MAX]; + char *description; /* For debugging purpose only */ +}; + +#endif |