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.
Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org> --- include/hw/misc/pca9552.h | 1 + hw/misc/pca9552.c | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/include/hw/misc/pca9552.h b/include/hw/misc/pca9552.h index 755be2e8e5..2545087da3 100644 --- a/include/hw/misc/pca9552.h +++ b/include/hw/misc/pca9552.h @@ -30,6 +30,7 @@ typedef struct PCA9552State { uint8_t max_reg; char *description; /* For debugging purpose only */ uint8_t nr_leds; + qemu_irq gpio[PCA9552_PIN_COUNT]; } PCA9552State; #endif diff --git a/hw/misc/pca9552.c b/hw/misc/pca9552.c index 85557b78d9..8f0ce19b74 100644 --- a/hw/misc/pca9552.c +++ b/hw/misc/pca9552.c @@ -16,6 +16,7 @@ #include "hw/qdev-properties.h" #include "hw/misc/pca9552.h" #include "hw/misc/pca9552_regs.h" +#include "hw/irq.h" #include "migration/vmstate.h" #include "qapi/error.h" #include "qapi/visitor.h" @@ -88,9 +89,11 @@ static void pca9552_update_pin_input(PCA9552State *s) switch (config) { case PCA9552_LED_ON: + qemu_set_irq(s->gpio[i], 1); s->regs[input_reg] |= 1 << input_shift; break; case PCA9552_LED_OFF: + qemu_set_irq(s->gpio[i], 0); s->regs[input_reg] &= ~(1 << input_shift); break; case PCA9552_LED_PWM0: @@ -360,6 +363,7 @@ static void pca9552_realize(DeviceState *dev, Error **errp) if (!s->description) { s->description = g_strdup("pca-unspecified"); } + qdev_init_gpio_out(dev, s->gpio, s->nr_leds); } static Property pca9552_properties[] = { -- 2.21.3