[Qemu-devel] [PATCH 10/15] handle gpe data for pio

[Glauber Costa <gcosta@redhat.com>]

actually grab and return data, instead of just being two
bogus functions.

Signed-off-by: Glauber Costa <gcosta@redhat.com>
---
 qemu/hw/acpi.c |   36 ++++++++++++++++++++++++++++++++++++
 1 files changed, 36 insertions(+), 0 deletions(-)

diff --git a/qemu/hw/acpi.c b/qemu/hw/acpi.c
index 119b59a..7340f15 100644
--- a/qemu/hw/acpi.c
+++ b/qemu/hw/acpi.c
@@ -545,6 +545,24 @@ static struct gpe_regs gpe;
 static uint32_t gpe_readb(void *opaque, uint32_t addr)
 {
     uint32_t val = 0;
+    struct gpe_regs *g = opaque;
+    switch (addr) {
+        case GPE_BASE:
+            val = g->sts & 0xFF;
+            break;
+        case GPE_BASE + 1:
+            val =  (g->sts >> 8) & 0xFF;
+            break;
+        case GPE_BASE + 2:
+            val =  g->en & 0xFF;
+            break;
+        case GPE_BASE + 3:
+            val =  (g->en >> 8) & 0xFF;
+            break;
+        default:
+            break;
+    }
+
 #if defined(DEBUG)
     printf("gpe read %lx == %lx\n", addr, val);
 #endif
@@ -553,6 +571,24 @@ #endif
 
 static void gpe_writeb(void *opaque, uint32_t addr, uint32_t val)
 {
+    struct gpe_regs *g = opaque;
+    switch (addr) {
+        case GPE_BASE:
+            g->sts = (g->sts & ~0xFFFF) | (val & 0xFFFF);
+            break;
+        case GPE_BASE + 1:
+            g->sts = (g->sts & 0xFFFF) | (val << 8);
+            break;
+        case GPE_BASE + 2:
+            g->en = (g->en & ~0xFFFF) | (val & 0xFFFF);
+            break;
+        case GPE_BASE + 3:
+            g->en = (g->en & 0xFFFF) | (val << 8);
+            break;
+        default:
+            break;
+   }
+
 #if defined(DEBUG)
     printf("gpe write %lx <== %d\n", addr, val);
 #endif
-- 
1.4.2