feat: better rtc framework which aims to remove single rtc restrictions.

[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 1512e6f1cb56bf2fc8f402a6243413524140a60d..979b461b86184a8c1bcdfa18f3ce0f0505f094a1 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 <klibc/stdio.h>
 #include <lunaix/device.h>

+#include <lunaix/fs.h>

 #include <lunaix/fs/twifs.h>
 #include <lunaix/fs/twifs.h>

+#include <lunaix/ioctl.h>

 #include <lunaix/mm/valloc.h>
 #include <lunaix/spike.h>
 #include <lunaix/mm/valloc.h>
 #include <lunaix/spike.h>

+#include <lunaix/syscall.h>
+#include <lunaix/syscall_utils.h>

 
 static DEFINE_LLIST(root_list);
 
 
 static DEFINE_LLIST(root_list);
 


@@ -12,18 +16,22 @@ struct device*
 device_add(struct device* parent,
            void* underlay,
            char* name_fmt,
 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));
 
     if (parent) {
         assert((parent->dev_type & DEV_MSKIF) == DEV_IFCAT);
            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 =
       __ksprintf_internal(dev->name_val, name_fmt, DEVICE_NAME_SIZE, args);
 
     }
 
     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;
     dev->dev_id = devid++;
     dev->name = HSTR(dev->name_val, strlen);
     dev->parent = parent;


@@ -31,11 +39,24 @@ device_add(struct device* parent,
     dev->dev_type = type;
 
     hstr_rehash(&dev->name, HSTR_FULL_HASH);
     dev->dev_type = type;
 
     hstr_rehash(&dev->name, HSTR_FULL_HASH);

-    llist_append(&root_list, &dev->siblings);
+    llist_init_head(&dev->children);

 
     return dev;
 }
 
 
     return dev;
 }
 

+struct device*
+device_addsys(struct device* parent, void* underlay, char* name_fmt, ...)
+{
+    va_list args;
+    va_start(args, name_fmt);
+
+    struct device* dev =
+      device_add(parent, underlay, name_fmt, DEV_IFSEQ, args);
+
+    va_end(args);
+    return dev;
+}
+

 struct device*
 device_addseq(struct device* parent, void* underlay, char* name_fmt, ...)
 {
 struct device*
 device_addseq(struct device* parent, void* underlay, char* name_fmt, ...)
 {


@@ -90,9 +111,9 @@ device_getbyid(struct llist_header* devlist, dev_t id)
 }
 
 struct device*
 }
 
 struct device*

-device_getbyhname(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)
     {
     struct device *pos, *n;
     llist_for_each(pos, n, devlist, siblings)
     {


@@ -105,12 +126,12 @@ device_getbyhname(struct llist_header* devlist, struct hstr* name)
 }
 
 struct device*
 }
 
 struct device*

-device_getbyname(struct llist_header* devlist, const char* name, size_t len)
+device_getbyname(struct device* root_dev, const char* name, size_t len)

 {
     struct hstr hname = HSTR(name, len);
     hstr_rehash(&hname, HSTR_FULL_HASH);
 
 {
     struct hstr hname = HSTR(name, len);
     hstr_rehash(&hname, HSTR_FULL_HASH);
 

-    return device_getbyhname(devlist, &hname);
+    return device_getbyhname(root_dev, &hname);

 }
 
 void
 }
 
 void


@@ -121,9 +142,9 @@ device_remove(struct device* dev)
 }
 
 struct device*
 }
 
 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)
     struct device *pos, *n;
     int off = 0;
     llist_for_each(pos, n, devlist, siblings)


@@ -133,4 +154,29 @@ device_getbyoffset(struct llist_header* devlist, int offset)
         }
     }
     return NULL;
         }
     }
     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->ops.exec_cmd) {
+        errno = ENOTSUP;
+        goto done;
+    }
+
+    errno = dev->ops.exec_cmd(dev, req, args);
+
+done:
+    return DO_STATUS_OR_RETURN(errno);

 }
\ No newline at end of file
 }
\ No newline at end of file