| 1 | /* |
| 2 | * PCA9554 I/O port |
| 3 | * |
| 4 | * Copyright (c) 2023, IBM Corporation. |
| 5 | * |
| 6 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 7 | */ |
| 8 | #ifndef PCA9554_H |
| 9 | #define PCA9554_H |
| 10 | |
| 11 | #include "hw/i2c/i2c.h" |
| 12 | #include "qom/object.h" |
| 13 | |
| 14 | #define TYPE_PCA9554 "pca9554" |
| 15 | #define TYPE_PCA9536 "pca9536" |
| 16 | typedef struct PCA9554State PCA9554State; |
| 17 | DECLARE_INSTANCE_CHECKER(PCA9554State, PCA9554, |
| 18 | TYPE_PCA9554) |
| 19 | |
| 20 | #define PCA9554_NR_REGS 4 |
| 21 | #define PCA9554_PIN_COUNT 8 |
| 22 | #define PCA9536_PIN_COUNT 4 |
| 23 | |
| 24 | struct PCA9554State { |
| 25 | /*< private >*/ |
| 26 | I2CSlave i2c; |
| 27 | /*< public >*/ |
| 28 | |
| 29 | uint8_t len; |
| 30 | uint8_t pointer; |
| 31 | |
| 32 | uint8_t regs[PCA9554_NR_REGS]; |
| 33 | qemu_irq gpio_out[PCA9554_PIN_COUNT]; |
| 34 | uint8_t ext_state[PCA9554_PIN_COUNT]; |
| 35 | char *description; /* For debugging purpose only */ |
| 36 | bool hw_dir; /* Honor pin direction */ |
| 37 | }; |
| 38 | |
| 39 | #endif |