feat: taskfs for export process to filesystem

[lunaix-os.git] / lunaix-os / kernel / device / device.c

diff --git a/lunaix-os/kernel/device/device.c b/lunaix-os/kernel/device/device.c
index aafdf0e5694b30d3566b2339dcbc2b89941aeb40..beb1f18050b15097bb02d5696b037a8a8f32e5a6 100644 (file)
--- a/lunaix-os/kernel/device/device.c
+++ b/lunaix-os/kernel/device/device.c
@@ -9,20 +9,23 @@ static DEFINE_LLIST(root_list);
 static volatile dev_t devid = 0;
 
 struct device*
-__device_add(struct device* parent,
-             void* underlay,
-             char* name_fmt,
-             uint32_t type,
-             va_list args)
+device_add(struct device* parent,
+           void* underlay,
+           char* name_fmt,
+           uint32_t type,
+           va_list args)
 {
     struct device* dev = vzalloc(sizeof(struct device));
 
     if (parent) {
         assert((parent->dev_type & DEV_MSKIF) == DEV_IFCAT);
+        llist_append(&parent->children, &dev->siblings);
+    } else {
+        llist_append(&root_list, &dev->siblings);
     }
 
     size_t strlen =
-      __sprintf_internal(dev->name_val, name_fmt, DEVICE_NAME_SIZE, args);
+      __ksprintf_internal(dev->name_val, name_fmt, DEVICE_NAME_SIZE, args);
 
     dev->dev_id = devid++;
     dev->name = HSTR(dev->name_val, strlen);
@@ -31,7 +34,7 @@ __device_add(struct device* parent,
     dev->dev_type = type;
 
     hstr_rehash(&dev->name, HSTR_FULL_HASH);
-    llist_append(&root_list, &dev->siblings);
+    llist_init_head(&dev->children);
 
     return dev;
 }
@@ -43,7 +46,7 @@ device_addseq(struct device* parent, void* underlay, char* name_fmt, ...)
     va_start(args, name_fmt);
 
     struct device* dev =
-      __device_add(parent, underlay, name_fmt, DEV_IFSEQ, args);
+      device_add(parent, underlay, name_fmt, DEV_IFSEQ, args);
 
     va_end(args);
     return dev;
@@ -56,7 +59,7 @@ device_addvol(struct device* parent, void* underlay, char* name_fmt, ...)
     va_start(args, name_fmt);
 
     struct device* dev =
-      __device_add(parent, underlay, name_fmt, DEV_IFVOL, args);
+      device_add(parent, underlay, name_fmt, DEV_IFVOL, args);
 
     va_end(args);
     return dev;
@@ -68,7 +71,7 @@ device_addcat(struct device* parent, char* name_fmt, ...)
     va_list args;
     va_start(args, name_fmt);
 
-    struct device* dev = __device_add(parent, NULL, name_fmt, DEV_IFCAT, args);
+    struct device* dev = device_add(parent, NULL, name_fmt, DEV_IFCAT, args);
 
     va_end(args);
     return dev;
@@ -90,9 +93,9 @@ device_getbyid(struct llist_header* devlist, dev_t id)
 }
 
 struct device*
-device_getbyname(struct llist_header* devlist, struct hstr* name)
+device_getbyhname(struct device* root_dev, struct hstr* name)
 {
-    devlist = devlist ? devlist : &root_list;
+    struct llist_header* devlist = root_dev ? &root_dev->children : &root_list;
     struct device *pos, *n;
     llist_for_each(pos, n, devlist, siblings)
     {
@@ -104,6 +107,15 @@ device_getbyname(struct llist_header* devlist, struct hstr* name)
     return NULL;
 }
 
+struct device*
+device_getbyname(struct device* root_dev, const char* name, size_t len)
+{
+    struct hstr hname = HSTR(name, len);
+    hstr_rehash(&hname, HSTR_FULL_HASH);
+
+    return device_getbyhname(root_dev, &hname);
+}
+
 void
 device_remove(struct device* dev)
 {
@@ -112,9 +124,9 @@ device_remove(struct device* dev)
 }
 
 struct device*
-device_getbyoffset(struct llist_header* devlist, int offset)
+device_getbyoffset(struct device* root_dev, int offset)
 {
-    devlist = devlist ? devlist : &root_list;
+    struct llist_header* devlist = root_dev ? &root_dev->children : &root_list;
     struct device *pos, *n;
     int off = 0;
     llist_for_each(pos, n, devlist, siblings)