[PATCH 1/2] hw/gpio: Add property for ASPEED GPIO in 32 bits basis

[Jingbo Wu]

From: Felix Wu <f...@google.com>

Added 32 bits property for ASPEED GPIO. Previously it can only be access in 
bitwise manner.

This change gives ASPEED similar behavior as Nuvoton.

Signed-off-by: Felix Wu <f...@google.com>
---
 hw/gpio/aspeed_gpio.c | 56 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/hw/gpio/aspeed_gpio.c b/hw/gpio/aspeed_gpio.c
index 1e267dd482..e4fa5c1c79 100644
--- a/hw/gpio/aspeed_gpio.c
+++ b/hw/gpio/aspeed_gpio.c
@@ -951,6 +951,56 @@ static void aspeed_gpio_set_pin(Object *obj, Visitor *v, 
const char *name,
     aspeed_gpio_set_pin_level(s, set_idx, pin, level);
 }
 
+static void aspeed_gpio_set_set(Object *obj, Visitor *v,
+                                        const char *name, void *opaque,
+                                        Error **errp)
+{
+    uint32_t set_val = 0;
+    AspeedGPIOState *s = ASPEED_GPIO(obj);
+    AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s);
+    int set_idx = 0;
+
+    if (!visit_type_uint32(v, name, &set_val, errp)) {
+        return;
+    }
+
+    if (sscanf(name, "gpio-set[%d]", &set_idx) != 1) {
+        error_setg(errp, "%s: error reading %s", __func__, name);
+        return;
+    }
+
+    if (set_idx >= agc->nr_gpio_sets || set_idx < 0) {
+        error_setg(errp, "%s: invalid set_idx %s", __func__, name);
+        return;
+    }
+
+    aspeed_gpio_update(s, &s->sets[set_idx], set_val,
+                       ~s->sets[set_idx].direction);
+}
+
+static void aspeed_gpio_get_set(Object *obj, Visitor *v,
+                                        const char *name, void *opaque,
+                                        Error **errp)
+{
+    uint32_t set_val = 0;
+    AspeedGPIOState *s = ASPEED_GPIO(obj);
+    AspeedGPIOClass *agc = ASPEED_GPIO_GET_CLASS(s);
+    int set_idx = 0;
+
+    if (sscanf(name, "gpio-set[%d]", &set_idx) != 1) {
+        error_setg(errp, "%s: error reading %s", __func__, name);
+        return;
+    }
+
+    if (set_idx >= agc->nr_gpio_sets || set_idx < 0) {
+        error_setg(errp, "%s: invalid set_idx %s", __func__, name);
+        return;
+    }
+
+    set_val = s->sets[set_idx].data_value;
+    visit_type_uint32(v, name, &set_val, errp);
+}
+
 /****************** Setup functions ******************/
 static const GPIOSetProperties ast2400_set_props[ASPEED_GPIO_MAX_NR_SETS] = {
     [0] = {0xffffffff,  0xffffffff,  {"A", "B", "C", "D"} },
@@ -1061,6 +1111,12 @@ static void aspeed_gpio_init(Object *obj)
             g_free(name);
         }
     }
+
+    for (int i = 0; i < agc->nr_gpio_sets; i++) {
+        char *name = g_strdup_printf("gpio-set[%d]", i);
+        object_property_add(obj, name, "uint32", aspeed_gpio_get_set,
+        aspeed_gpio_set_set, NULL, NULL);
+    }
 }
 
 static const VMStateDescription vmstate_gpio_regs = {
-- 
2.41.0.rc0.172.g3f132b7071-goog