microblaze: linux-user support.

[qemu] / hw / pckbd.c

diff --git a/hw/pckbd.c b/hw/pckbd.c
index 266c7f9..3ef3594 100644 (file)
--- a/hw/pckbd.c
+++ b/hw/pckbd.c
@@ -30,9 +30,6 @@
 /* debug PC keyboard */
 //#define DEBUG_KBD
 
-/* debug PC keyboard : only mouse */
-//#define DEBUG_MOUSE
-
 /*     Keyboard Controller Commands */
 #define KBD_CCMD_READ_MODE     0x20    /* Read mode bits */
 #define KBD_CCMD_WRITE_MODE    0x60    /* Write mode bits */
@@ -112,8 +109,6 @@
 #define MOUSE_STATUS_ENABLED    0x20
 #define MOUSE_STATUS_SCALE21    0x10
 
-#define KBD_QUEUE_SIZE 256
-
 #define KBD_PENDING_KBD         1
 #define KBD_PENDING_AUX         2
 
@@ -128,11 +123,10 @@ typedef struct KBDState {
 
     qemu_irq irq_kbd;
     qemu_irq irq_mouse;
-    target_phys_addr_t base;
-    int it_shift;
+    target_phys_addr_t mask;
 } KBDState;
 
-KBDState kbd_state;
+static KBDState kbd_state;
 
 /* update irq and KBD_STAT_[MOUSE_]OBF */
 /* XXX: not generating the irqs if KBD_MODE_DISABLE_KBD is set may be
@@ -211,7 +205,7 @@ static void kbd_write_command(void *opaque, uint32_t addr, uint32_t val)
 #endif
     switch(val) {
     case KBD_CCMD_READ_MODE:
-        kbd_queue(s, s->mode, 1);
+        kbd_queue(s, s->mode, 0);
         break;
     case KBD_CCMD_WRITE_MODE:
     case KBD_CCMD_WRITE_OBUF:
@@ -283,11 +277,17 @@ static void kbd_write_command(void *opaque, uint32_t addr, uint32_t val)
 static uint32_t kbd_read_data(void *opaque, uint32_t addr)
 {
     KBDState *s = opaque;
+    uint32_t val;
 
     if (s->pending == KBD_PENDING_AUX)
-        return ps2_read_data(s->mouse);
+        val = ps2_read_data(s->mouse);
+    else
+        val = ps2_read_data(s->kbd);
 
-    return ps2_read_data(s->kbd);
+#if defined(DEBUG_KBD)
+    printf("kbd: read data=0x%02x\n", val);
+#endif
+    return val;
 }
 
 static void kbd_write_data(void *opaque, uint32_t addr, uint32_t val)
@@ -381,7 +381,7 @@ void i8042_init(qemu_irq kbd_irq, qemu_irq mouse_irq, uint32_t io_base)
 #ifdef TARGET_I386
     vmmouse_init(s->mouse);
 #endif
-    qemu_register_reset(kbd_reset, s);
+    qemu_register_reset(kbd_reset, 0, s);
 }
 
 /* Memory mapped interface */
@@ -389,28 +389,20 @@ static uint32_t kbd_mm_readb (void *opaque, target_phys_addr_t addr)
 {
     KBDState *s = opaque;
 
-    switch ((addr - s->base) >> s->it_shift) {
-    case 0:
-        return kbd_read_data(s, 0) & 0xff;
-    case 1:
+    if (addr & s->mask)
         return kbd_read_status(s, 0) & 0xff;
-    default:
-        return 0xff;
-    }
+    else
+        return kbd_read_data(s, 0) & 0xff;
 }
 
 static void kbd_mm_writeb (void *opaque, target_phys_addr_t addr, uint32_t value)
 {
     KBDState *s = opaque;
 
-    switch ((addr - s->base) >> s->it_shift) {
-    case 0:
-        kbd_write_data(s, 0, value & 0xff);
-        break;
-    case 1:
+    if (addr & s->mask)
         kbd_write_command(s, 0, value & 0xff);
-        break;
-    }
+    else
+        kbd_write_data(s, 0, value & 0xff);
 }
 
 static CPUReadMemoryFunc *kbd_mm_read[] = {
@@ -426,25 +418,25 @@ static CPUWriteMemoryFunc *kbd_mm_write[] = {
 };
 
 void i8042_mm_init(qemu_irq kbd_irq, qemu_irq mouse_irq,
-                   target_phys_addr_t base, int it_shift)
+                   target_phys_addr_t base, ram_addr_t size,
+                   target_phys_addr_t mask)
 {
     KBDState *s = &kbd_state;
     int s_io_memory;
 
     s->irq_kbd = kbd_irq;
     s->irq_mouse = mouse_irq;
-    s->base = base;
-    s->it_shift = it_shift;
+    s->mask = mask;
 
     kbd_reset(s);
     register_savevm("pckbd", 0, 3, kbd_save, kbd_load, s);
     s_io_memory = cpu_register_io_memory(0, kbd_mm_read, kbd_mm_write, s);
-    cpu_register_physical_memory(base, 8 << it_shift, s_io_memory);
+    cpu_register_physical_memory(base, size, s_io_memory);
 
     s->kbd = ps2_kbd_init(kbd_update_kbd_irq, s);
     s->mouse = ps2_mouse_init(kbd_update_aux_irq, s);
 #ifdef TARGET_I386
     vmmouse_init(s->mouse);
 #endif
-    qemu_register_reset(kbd_reset, s);
+    qemu_register_reset(kbd_reset, 0, s);
 }