android-console: Add GF event type reporting

Adds Goldfish event table and functions for reporting the number. value, and
names of supported events.  Also added an internal function for looking up an
event type descriptor by name.  This functionality will be used by the Andorid
emulator console for displaying names and numbers of available events.

Signed-off-by: Greg Bellows <greg.bellows@linaro.org>

2 files changed, 106 insertions, 15 deletions

diff --git a/hw/input/goldfish_events.c b/hw/input/goldfish_events.c
index 3fee6761a..809ab2b45 100644
--- a/hw/input/goldfish_events.c
+++ b/hw/input/goldfish_events.c
@@ -19,6 +19,8 @@
 #include "ui/console.h"
 #include "hw/input/linux_keycodes.h"
 
+#include "hw/input/goldfish_events.h"
+
 /* Multitouch specific code is defined out via EVDEV_MULTITOUCH currently,
  * because upstream has no multitouch related APIs.
  */
@@ -26,21 +28,6 @@
 
 #define MAX_EVENTS (256 * 4)
 
-/* Event types (as per Linux input event layer) */
-#define EV_SYN                  0x00
-#define EV_KEY                  0x01
-#define EV_REL                  0x02
-#define EV_ABS                  0x03
-#define EV_MSC                  0x04
-#define EV_SW                   0x05
-#define EV_LED                  0x11
-#define EV_SND                  0x12
-#define EV_REP                  0x14
-#define EV_FF                   0x15
-#define EV_PWR                  0x16
-#define EV_FF_STATUS            0x17
-#define EV_MAX                  0x1f
-
 /* Absolute axes */
 #define ABS_X                   0x00
 #define ABS_Y                   0x01
@@ -67,6 +54,44 @@
 #define BTN_TOUCH 0x14a
 #define BTN_MOUSE 0x110
 
+typedef struct {
+    const char *name;
+    int value;
+} GoldfishEventTypeInfo;
+
+/* Event types (as per Linux input event layer) */
+#define EV_SYN                  0x00
+#define EV_KEY                  0x01
+#define EV_REL                  0x02
+#define EV_ABS                  0x03
+#define EV_MSC                  0x04
+#define EV_SW                   0x05
+#define EV_LED                  0x11
+#define EV_SND                  0x12
+#define EV_REP                  0x14
+#define EV_FF                   0x15
+#define EV_PWR                  0x16
+#define EV_FF_STATUS            0x17
+#define EV_MAX                  0x1f
+
+#define EV_TYPE(_type)    {#_type, (_type)}
+#define EV_TYPE_END     {NULL, 0}
+static const GoldfishEventTypeInfo ev_type_table[] = {
+    EV_TYPE(EV_SYN),
+    EV_TYPE(EV_KEY),
+    EV_TYPE(EV_REL),
+    EV_TYPE(EV_ABS),
+    EV_TYPE(EV_MSC),
+    EV_TYPE(EV_SW),
+    EV_TYPE(EV_LED),
+    EV_TYPE(EV_SND),
+    EV_TYPE(EV_REP),
+    EV_TYPE(EV_FF),
+    EV_TYPE(EV_PWR),
+    EV_TYPE(EV_FF_STATUS),
+    EV_TYPE(EV_MAX),
+    EV_TYPE_END
+};
 
 enum {
     REG_READ        = 0x00,
@@ -510,6 +535,53 @@ static void gf_evdev_handle_keyevent(DeviceState *dev, QemuConsole *src,
     }
 }
 
+static const GoldfishEventTypeInfo *gf_get_event_type(const char *typename)
+{
+    const GoldfishEventTypeInfo *type = NULL;
+    int count = 0;
+
+    /* Find the type descriptor by doing a name match */
+    while (ev_type_table[count].name != NULL) {
+        if (typename && !strcmp(ev_type_table[count].name, typename)) {
+            type = &ev_type_table[count];
+            break;
+        }
+        count++;
+    }
+
+    return type;
+}
+
+int gf_get_event_type_count(void)
+{
+    int count = 0;
+
+    while (ev_type_table[count].name != NULL) {
+        count++;
+    }
+
+    return count;
+}
+
+int gf_get_event_type_name(int type, char *buf)
+{
+   g_stpcpy(buf, ev_type_table[type].name);
+
+   return 0;
+}
+
+int gf_get_event_type_value(char *typename)
+{
+    const GoldfishEventTypeInfo *type = gf_get_event_type(typename);
+    int ret = -1;
+
+    if (type) {
+        ret = type->value;
+    }
+
+    return ret;
+}
+
 static QemuInputHandler gf_evdev_key_input_handler = {
     .name = "goldfish event device key handler",
     .mask = INPUT_EVENT_MASK_KEY,
diff --git a/include/hw/input/goldfish_events.h b/include/hw/input/goldfish_events.h
new file mode 100644
index 000000000..ef766d9bc
--- /dev/null
+++ b/include/hw/input/goldfish_events.h
@@ -0,0 +1,19 @@
+/* Copyright (C) 2007-2013 The Android Open Source Project
+**
+** This software is licensed under the terms of the GNU General Public
+** License version 2, as published by the Free Software Foundation, and
+** may be copied, distributed, and modified under those terms.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+*/
+#ifndef _HW_GOLDFISH_EVENT_H
+#define _HW_GOLDFISH_EVENT_H
+
+extern int gf_get_event_type_count(void);
+extern int gf_get_event_type_name(int type, char *buf);
+extern int gf_get_event_type_value(char *codename);
+
+#endif