feat: support ioctl() syscall for direct control to devices

[lunaix-os.git] / lunaix-os / includes / lunaix / device.h

diff --git a/lunaix-os/includes/lunaix/device.h b/lunaix-os/includes/lunaix/device.h
index c0ed9896382ef901e0fb676d224187b33a033520..c456df41bc6c08b960d66667a091e7ee54e0e859 100644 (file)
--- a/lunaix-os/includes/lunaix/device.h
+++ b/lunaix-os/includes/lunaix/device.h
@@ -5,6 +5,9 @@
 
 #include <lunaix/ds/hstr.h>
 #include <lunaix/ds/llist.h>
+#include <lunaix/types.h>
+
+#define DEV_STRUCT_MAGIC 0x5645444c
 
 #define DEV_MSKIF 0x00000003
 
@@ -16,7 +19,9 @@ typedef unsigned int dev_t;
 
 struct device
 {
+    uint32_t magic;
     struct llist_header siblings;
+    struct llist_header children;
     struct device* parent;
     struct hstr name;
     dev_t dev_id;
@@ -25,8 +30,16 @@ struct device
     void* underlay;
     int (*read)(struct device* dev, void* buf, size_t offset, size_t len);
     int (*write)(struct device* dev, void* buf, size_t offset, size_t len);
+    int (*exec_cmd)(struct device* dev, uint32_t req, va_list args);
 };
 
+struct device*
+device_add(struct device* parent,
+           void* underlay,
+           char* name_fmt,
+           uint32_t type,
+           va_list args);
+
 struct device*
 device_addseq(struct device* parent, void* underlay, char* name_fmt, ...);
 
@@ -43,9 +56,12 @@ struct device*
 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);
+
+struct device*
+device_getbyname(struct device* root_dev, const char* name, size_t len);
 
 struct device*
-device_getbyoffset(struct llist_header* devlist, int pos);
+device_getbyoffset(struct device* root_dev, int pos);
 
 #endif /* __LUNAIX_DEVICE_H */