include/hw/gpio/pca9552.h

   1 /*
   2  * PCA9552 I2C LED blinker
   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_H
  10 #define PCA9552_H
  11
  12 #include "hw/i2c/i2c.h"
  13 #include "qom/object.h"
  14
  15 #define TYPE_PCA9552 "pca9552"
  16 #define TYPE_PCA955X "pca955x"
  17 typedef struct PCA955xState PCA955xState;
  18 DECLARE_INSTANCE_CHECKER(PCA955xState, PCA955X,
  19                          TYPE_PCA955X)
  20
  21 #define PCA955X_NR_REGS 10
  22 #define PCA955X_PIN_COUNT_MAX 16
  23
  24 struct PCA955xState {
  25     /*< private >*/
  26     I2CSlave i2c;
  27     /*< public >*/
  28
  29     uint8_t len;
  30     uint8_t pointer;
  31
  32     uint8_t regs[PCA955X_NR_REGS];
  33     qemu_irq gpio_out[PCA955X_PIN_COUNT_MAX];
  34     uint8_t ext_state[PCA955X_PIN_COUNT_MAX];
  35     char *description; /* For debugging purpose only */
  36 };
  37
  38 #endif