hw/mips/mips_ranchu.c: Trigger goldfish_fb rotation on command

For reference take a look at :
4f7a288 ranchu: trigger goldfish_fb rotation on command

Change-Id: Ic4feed7ebf7e4aeb81657fe123d176f68057c129

1 files changed, 48 insertions, 1 deletions

diff --git a/hw/mips/mips_ranchu.c b/hw/mips/mips_ranchu.c
index 9490502e55..388387b884 100644
--- a/hw/mips/mips_ranchu.c
+++ b/hw/mips/mips_ranchu.c
@@ -18,6 +18,8 @@
 #include "elf.h"
 #include "hw/intc/goldfish_pic.h"
 #include "hw/irq.h"
+#include "hw/display/goldfish_fb.h"
+#include "hw/input/goldfish_sensors.h"
 
 #define PHYS_TO_VIRT(x) ((x) | ~(target_ulong)0x7fffffff)
 
@@ -101,6 +103,44 @@ struct machine_params {
     MIPSCPU *cpu;
 } ranchu_params;
 
+static int ranchu_rotation_state = 0;       /* 0-3 */
+
+static void android_console_rotate_screen(Monitor *mon, const QDict *qdict)
+{
+    ranchu_rotation_state = ((ranchu_rotation_state + 1) % 4);
+    goldfish_sensors_set_rotation(ranchu_rotation_state);
+    /* The mapping between QEMU and Android's idea of rotation are
+       reversed */
+    switch (ranchu_rotation_state) {
+    case 0:
+        goldfish_fb_set_rotation(0);
+        graphic_rotate = 0;
+        break;
+    case 1:
+        goldfish_fb_set_rotation(3);
+        graphic_rotate = 90;
+        break;
+    case 2:
+        goldfish_fb_set_rotation(2);
+        graphic_rotate = 180;
+        break;
+    case 3:
+        goldfish_fb_set_rotation(1);
+        graphic_rotate = 270;
+        break;
+    default:
+        g_assert_not_reached();
+    }
+}
+
+static mon_cmd_t rotate_cmd = {
+    .name = "rotate",
+    .args_type = "",
+    .params = "",
+    .help = "rotate the screen by 90 degrees",
+    .mhandler.cmd = android_console_rotate_screen,
+};
+
 static void main_cpu_reset(void* opaque1)
 {
     struct machine_params *opaque = (struct machine_params *)opaque1;
@@ -156,6 +196,7 @@ static void initialize_console_and_adb(void)
     int baseport = ANDROID_CONSOLE_BASEPORT;
     int tries = MAX_ANDROID_EMULATORS;
     CharDriverState *chr;
+    struct Monitor* android_monitor;
 
     for (; tries > 0; tries--, baseport += 2) {
         chr = try_to_create_console_chardev(baseport);
@@ -173,7 +214,13 @@ static void initialize_console_and_adb(void)
          * This is equivalent to
          * "-mon chardev=private-chardev,mode=android-console"
          */
-        monitor_init(chr, MONITOR_ANDROID_CONSOLE | MONITOR_USE_READLINE);
+        /* monitor_init(chr, MONITOR_ANDROID_CONSOLE | MONITOR_USE_READLINE); */
+        android_monitor = monitor_init(chr,
+                                       MONITOR_ANDROID_CONSOLE |
+                                       MONITOR_USE_READLINE |
+                                       MONITOR_DYNAMIC_CMDS);
+        monitor_add_command(android_monitor,
+                            &rotate_cmd);
 
         printf("console on port %d, ADB on port %d\n", baseport, baseport + 1);
         return;