refactor: decouple the executable file implementations with execve functionality.

[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 beb1f18050b15097bb02d5696b037a8a8f32e5a6..3647f10a87f778395cb4efba6f4080b622cd0f63 100644 (file)
--- a/lunaix-os/kernel/device/device.c
+++ b/lunaix-os/kernel/device/device.c
@@ -1,8 +1,12 @@
 #include <klibc/stdio.h>
 #include <lunaix/device.h>
+#include <lunaix/fs.h>
 #include <lunaix/fs/twifs.h>
+#include <lunaix/ioctl.h>
 #include <lunaix/mm/valloc.h>
 #include <lunaix/spike.h>
+#include <lunaix/syscall.h>
+#include <lunaix/syscall_utils.h>
 
 static DEFINE_LLIST(root_list);
 
@@ -12,7 +16,7 @@ struct device*
 device_add(struct device* parent,
            void* underlay,
            char* name_fmt,
-           uint32_t type,
+           u32_t type,
            va_list args)
 {
     struct device* dev = vzalloc(sizeof(struct device));
@@ -27,6 +31,7 @@ device_add(struct device* parent,
     size_t strlen =
       __ksprintf_internal(dev->name_val, name_fmt, DEVICE_NAME_SIZE, args);
 
+    dev->magic = DEV_STRUCT_MAGIC;
     dev->dev_id = devid++;
     dev->name = HSTR(dev->name_val, strlen);
     dev->parent = parent;
@@ -136,4 +141,29 @@ device_getbyoffset(struct device* root_dev, int offset)
         }
     }
     return NULL;
+}
+
+__DEFINE_LXSYSCALL3(int, ioctl, int, fd, int, req, va_list, args)
+{
+    int errno;
+    struct v_fd* fd_s;
+    if ((errno = vfs_getfd(fd, &fd_s))) {
+        goto done;
+    }
+
+    struct device* dev = (struct device*)fd_s->file->inode->data;
+    if (dev->magic != DEV_STRUCT_MAGIC) {
+        errno = ENODEV;
+        goto done;
+    }
+
+    if (!dev->exec_cmd) {
+        errno = EINVAL;
+        goto done;
+    }
+
+    errno = dev->exec_cmd(dev, req, args);
+
+done:
+    return DO_STATUS_OR_RETURN(errno);
 }
\ No newline at end of file