586f495b1e
The PCA9552 has 16 GPIOs which can be used as input, output or PWM mode. QEMU models the output GPIO with the qemu_irq type. Let the device expose the 16 GPIOs to allow us to later connect LEDs to these outputs. Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Tested-by: Cédric Le Goater <clg@kaod.org> Message-id: 20200623072723.6324-10-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
35 lines
753 B
C
35 lines
753 B
C
/*
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* PCA9552 I2C LED blinker
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*
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* Copyright (c) 2017-2018, IBM Corporation.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* later. See the COPYING file in the top-level directory.
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*/
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#ifndef PCA9552_H
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#define PCA9552_H
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#include "hw/i2c/i2c.h"
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#define TYPE_PCA9552 "pca9552"
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#define TYPE_PCA955X "pca955x"
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#define PCA955X(obj) OBJECT_CHECK(PCA955xState, (obj), TYPE_PCA955X)
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#define PCA955X_NR_REGS 10
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#define PCA955X_PIN_COUNT_MAX 16
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typedef struct PCA955xState {
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/*< private >*/
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I2CSlave i2c;
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/*< public >*/
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uint8_t len;
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uint8_t pointer;
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uint8_t regs[PCA955X_NR_REGS];
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qemu_irq gpio[PCA955X_PIN_COUNT_MAX];
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char *description; /* For debugging purpose only */
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} PCA955xState;
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#endif
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