[Qemu-devel] [PATCH 1/5] qdev/class: core

[Gerd Hoffmann <kraxel@redhat.com>]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/qdev.c |   29 ++++++++++++++++++++++++-----
 hw/qdev.h |    9 +++++++++
 2 files changed, 33 insertions(+), 5 deletions(-)

diff --git a/hw/qdev.c b/hw/qdev.c
index 009e68d..67cca3b 100644
--- a/hw/qdev.c
+++ b/hw/qdev.c
@@ -46,7 +46,19 @@ void qdev_register(DeviceInfo *info)
     device_info_list = info;
 }
 
-static DeviceInfo *qdev_find_info(BusInfo *bus_info, const char *name)
+const char *qdev_class_name(DeviceClass class)
+{
+    static const char *names[] = {
+        [ DEV_CLASS_UNSPECIFIED ] = "<unspecified>",
+        [ DEV_CLASS_NETWORK ]     = "network",
+        [ DEV_CLASS_SOUND ]       = "sound",
+    };
+    if (class < ARRAY_SIZE(names))
+        return names[class];
+    return "<invalid>";
+}
+
+DeviceInfo *qdev_find_info(BusInfo *bus_info, const char *name, DeviceClass class)
 {
     DeviceInfo *info;
 
@@ -54,6 +66,8 @@ static DeviceInfo *qdev_find_info(BusInfo *bus_info, const char *name)
     for (info = device_info_list; info != NULL; info = info->next) {
         if (bus_info && info->bus_info != bus_info)
             continue;
+        if (class && info->class != class)
+            continue;
         if (strcmp(info->name, name) != 0)
             continue;
         return info;
@@ -63,6 +77,8 @@ static DeviceInfo *qdev_find_info(BusInfo *bus_info, const char *name)
     for (info = device_info_list; info != NULL; info = info->next) {
         if (bus_info && info->bus_info != bus_info)
             continue;
+        if (class && info->class != class)
+            continue;
         if (!info->alias)
             continue;
         if (strcmp(info->alias, name) != 0)
@@ -87,7 +103,7 @@ DeviceState *qdev_create(BusState *bus, const char *name)
         bus = main_system_bus;
     }
 
-    info = qdev_find_info(bus->info, name);
+    info = qdev_find_info(bus->info, name, 0);
     if (!info) {
         hw_error("Unknown device '%s' for bus '%s'\n", name, bus->info->name);
     }
@@ -121,6 +137,8 @@ DeviceState *qdev_device_add(const char *cmdline)
                 fprintf(stderr, ", alias \"%s\"", info->alias);
             if (info->desc)
                 fprintf(stderr, ", desc \"%s\"", info->desc);
+            if (info->class)
+                fprintf(stderr, ", class \"%s\"", qdev_class_name(info->class));
             if (info->no_user)
                 fprintf(stderr, ", no-user");
             fprintf(stderr, "\n");
@@ -131,7 +149,7 @@ DeviceState *qdev_device_add(const char *cmdline)
         params = cmdline + n;
         get_param_value(addr, sizeof(addr), "addr", params);
     }
-    info = qdev_find_info(NULL, driver);
+    info = qdev_find_info(NULL, driver, 0);
 
     if (!info) {
         fprintf(stderr, "Device \"%s\" not found.  Try -device '?' for a list.\n",
@@ -378,7 +396,8 @@ void do_info_qdrv(Monitor *mon)
     DeviceInfo *info;
 
     for (info = device_info_list; info != NULL; info = info->next) {
-        monitor_printf(mon, "name \"%s\", bus %s\n",
-                       info->name, info->bus_info->name);
+        monitor_printf(mon, "name \"%s\", bus %s, class %s\n",
+                       info->name, info->bus_info->name,
+                       qdev_class_name(info->class));
     }
 }
diff --git a/hw/qdev.h b/hw/qdev.h
index cf6083f..a35b712 100644
--- a/hw/qdev.h
+++ b/hw/qdev.h
@@ -79,10 +79,17 @@ typedef void (*qdev_initfn)(DeviceState *dev, DeviceInfo *info);
 typedef void (*SCSIAttachFn)(DeviceState *host, BlockDriverState *bdrv,
               int unit);
 
+typedef enum DeviceClass {
+    DEV_CLASS_UNSPECIFIED = 0,
+    DEV_CLASS_NETWORK,
+    DEV_CLASS_SOUND,
+} DeviceClass;
+
 struct DeviceInfo {
     const char *name;
     const char *alias;
     const char *desc;
+    DeviceClass class;
     size_t size;
     Property *props;
     int no_user;
@@ -94,6 +101,8 @@ struct DeviceInfo {
 };
 
 void qdev_register(DeviceInfo *info);
+const char *qdev_class_name(DeviceClass class);
+DeviceInfo *qdev_find_info(BusInfo *bus_info, const char *name, DeviceClass class);
 
 /* Register device properties.  */
 /* GPIO inputs also double as IRQ sinks.  */
-- 
1.6.2.5