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ARM: PL061: Introduce N_GPIOS

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Add a definition for the number of GPIO lines controlled by a PL061
instance, and use it instead of the hardcoded magic value 8.

Suggested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200519085143.1376-1-geert+renesas@glider.be
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Geert Uytterhoeven 2020-05-19 10:51:43 +02:00 committed by Peter Maydell
parent a50fe66846
commit faf58e5369
1 changed files with 7 additions and 5 deletions
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12
hw/gpio/pl061.c
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@ -36,6 +36,8 @@ static const uint8_t pl061_id_luminary[12] =
#define TYPE_PL061 "pl061"
#define PL061(obj) OBJECT_CHECK(PL061State, (obj), TYPE_PL061)
#define N_GPIOS 8
typedef struct PL061State {
SysBusDevice parent_obj;
@ -62,7 +64,7 @@ typedef struct PL061State {
uint32_t cr;
uint32_t amsel;
qemu_irq irq;
qemu_irq out[8];
qemu_irq out[N_GPIOS];
const unsigned char *id;
uint32_t rsvd_start; /* reserved area: [rsvd_start, 0xfcc] */
} PL061State;
@ -112,7 +114,7 @@ static void pl061_update(PL061State *s)
changed = s->old_out_data ^ out;
if (changed) {
s->old_out_data = out;
for (i = 0; i < 8; i++) {
for (i = 0; i < N_GPIOS; i++) {
mask = 1 << i;
if (changed & mask) {
DPRINTF("Set output %d = %d\n", i, (out & mask) != 0);
@ -125,7 +127,7 @@ static void pl061_update(PL061State *s)
changed = (s->old_in_data ^ s->data) & ~s->dir;
if (changed) {
s->old_in_data = s->data;
for (i = 0; i < 8; i++) {
for (i = 0; i < N_GPIOS; i++) {
mask = 1 << i;
if (changed & mask) {
DPRINTF("Changed input %d = %d\n", i, (s->data & mask) != 0);
@ -364,8 +366,8 @@ static void pl061_init(Object *obj)
memory_region_init_io(&s->iomem, obj, &pl061_ops, s, "pl061", 0x1000);
sysbus_init_mmio(sbd, &s->iomem);
sysbus_init_irq(sbd, &s->irq);
qdev_init_gpio_in(dev, pl061_set_irq, 8);
qdev_init_gpio_out(dev, s->out, 8);
qdev_init_gpio_in(dev, pl061_set_irq, N_GPIOS);
qdev_init_gpio_out(dev, s->out, N_GPIOS);
}
static void pl061_class_init(ObjectClass *klass, void *data)