-#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>
+
+#include <klibc/stdio.h>
+#include <klibc/string.h>
static DEFINE_LLIST(root_list);
-static volatile dev_t devid = 0;
+static volatile u32_t devid = 0;
-struct device*
-device_add(struct device* parent,
- void* underlay,
- char* name_fmt,
- uint32_t type,
- va_list args)
+struct devclass default_devclass = {};
+
+void
+device_setname_vargs(struct device* dev, char* fmt, va_list args)
{
- struct device* dev = vzalloc(sizeof(struct device));
+ size_t strlen =
+ __ksprintf_internal(dev->name_val, fmt, DEVICE_NAME_SIZE, args);
+ dev->name = HSTR(dev->name_val, strlen);
+
+ hstr_rehash(&dev->name, HSTR_FULL_HASH);
+}
+
+void
+device_register(struct device* dev, struct devclass* class, char* fmt, ...)
+{
+ va_list args;
+ va_start(args, fmt);
+
+ if (fmt) {
+ device_setname_vargs(dev, fmt, args);
+ }
+
+ if (class) {
+ dev->ident = (struct devident){ .fn_grp = class->fn_grp,
+ .unique = DEV_UNIQUE(class->device,
+ class->variant) };
+ }
+
+ dev->dev_uid = devid++;
+
+ struct device* parent = dev->parent;
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);
+ va_end(args);
+}
- dev->dev_id = devid++;
- dev->name = HSTR(dev->name_val, strlen);
- dev->parent = parent;
+void
+device_create(struct device* dev,
+ struct device* parent,
+ u32_t type,
+ void* underlay)
+{
+ dev->magic = DEV_STRUCT_MAGIC;
dev->underlay = underlay;
dev->dev_type = type;
+ dev->parent = parent;
- hstr_rehash(&dev->name, HSTR_FULL_HASH);
- llist_append(&root_list, &dev->siblings);
-
- return dev;
+ llist_init_head(&dev->children);
+ mutex_init(&dev->lock);
}
struct device*
-device_addseq(struct device* parent, void* underlay, char* name_fmt, ...)
+device_alloc(struct device* parent, u32_t type, void* underlay)
{
- va_list args;
- va_start(args, name_fmt);
+ struct device* dev = vzalloc(sizeof(struct device));
- struct device* dev =
- device_add(parent, underlay, name_fmt, DEV_IFSEQ, args);
+ if (!dev) {
+ return NULL;
+ }
+
+ device_create(dev, parent, type, underlay);
- va_end(args);
return dev;
}
-struct device*
-device_addvol(struct device* parent, void* underlay, char* name_fmt, ...)
+void
+device_setname(struct device* dev, char* fmt, ...)
{
va_list args;
- va_start(args, name_fmt);
+ va_start(args, fmt);
- struct device* dev =
- device_add(parent, underlay, name_fmt, DEV_IFVOL, args);
+ device_setname_vargs(dev, fmt, args);
va_end(args);
- return dev;
}
struct device*
va_list args;
va_start(args, name_fmt);
- struct device* dev = device_add(parent, NULL, name_fmt, DEV_IFCAT, args);
+ struct device* dev = device_alloc(parent, DEV_IFCAT, NULL);
+
+ device_setname_vargs(dev, name_fmt, args);
+ device_register(dev, NULL, NULL);
va_end(args);
return dev;
}
struct device*
-device_getbyid(struct llist_header* devlist, dev_t id)
+device_getbyid(struct llist_header* devlist, u32_t id)
{
devlist = devlist ? devlist : &root_list;
struct device *pos, *n;
llist_for_each(pos, n, devlist, siblings)
{
- if (pos->dev_id == id) {
+ if (pos->dev_uid == id) {
return pos;
}
}
}
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*
-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);
- return device_getbyhname(devlist, &hname);
+ return device_getbyhname(root_dev, &hname);
}
void
}
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)
}
}
return NULL;
+}
+
+void
+device_populate_info(struct device* dev, struct dev_info* devinfo)
+{
+ devinfo->dev_id.group = dev->ident.fn_grp;
+ devinfo->dev_id.unique = dev->ident.unique;
+
+ if (!devinfo->dev_name.buf) {
+ return;
+ }
+
+ struct device_def* def = devdef_byident(&dev->ident);
+ size_t buflen = devinfo->dev_name.buf_len;
+
+ strncpy(devinfo->dev_name.buf, def->name, buflen);
+ devinfo->dev_name.buf[buflen - 1] = 0;
+}
+
+struct device*
+device_cast(void* obj)
+{
+ struct device* dev = (struct device*)obj;
+ if (dev && dev->magic == DEV_STRUCT_MAGIC) {
+ return dev;
+ }
+
+ return NULL;
+}
+
+__DEFINE_LXSYSCALL3(int, ioctl, int, fd, int, req, va_list, args)
+{
+ int errno = -1;
+ 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 (req == DEVIOIDENT) {
+ struct dev_info* devinfo = va_arg(args, struct dev_info*);
+ device_populate_info(dev, devinfo);
+ errno = 0;
+ }
+
+ 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
git://scm.lunaixsky.com / lunaix-os.git / blobdiff