rewrite the device subsystem interfaces (#48)

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

diff --git a/lunaix-os/includes/lunaix/device_num.h b/lunaix-os/includes/lunaix/device_num.h
index 58e91223b3e2dbc0f9110d5cd4bd7e402bd9235b..eef79895b7c5bd987f8c21ab68fca7cf05250bb6 100644 (file)
--- a/lunaix-os/includes/lunaix/device_num.h
+++ b/lunaix-os/includes/lunaix/device_num.h
@@ -1,6 +1,8 @@
 #ifndef __LUNAIX_DEVICE_NUM_H
 #define __LUNAIX_DEVICE_NUM_H
 
+#include <lunaix/types.h>
+
 /*
     Device metadata field (device_def::meta)
 
@@ -24,6 +26,8 @@
 
         I2C: device connected through the IIC protocol
 
+        FMW: device is a system board firmware
+
     The function defines the functionality that the device is designated to
    serve. Lunaix identify the following values:
 
@@ -47,33 +51,62 @@
 
         TTY: a device which can be called as teletypewriter, system can use such
             device for output into external environment
+
+        CFG: device that provide configuration service to the system or other
+   devices
+
+
 */
 
-#define DEV_META(if_, function) (((if_)&0xffff) << 16) | ((function)&0xffff)
-#define DEV_IF(meta) ((meta) >> 16)
-#define DEV_FN(meta) (((meta)&0xffff))
-
-#define DEVIF_NON 0x0
-#define DEVIF_SOC 0x1
-#define DEVIF_PCI 0x2
-#define DEVIF_USB 0x3
-#define DEVIF_SPI 0x4
-#define DEVIF_I2C 0x5
-
-#define DEVFN_PSEUDO 0x0
-#define DEVFN_CHAR 0x1
-#define DEVFN_STORAGE 0x4
-#define DEVFN_INPUT 0x5
-#define DEVFN_TIME 0x6
-#define DEVFN_BUSIF 0x7
-#define DEVFN_TTY 0x8
-
-#define DEV_BUILTIN 0x0
-#define DEV_X86LEGACY 0x1
-#define DEV_RNG 0x2
-#define DEV_RTC 0x3
-#define DEV_SATA 0x4
-#define DEV_NVME 0x5
-#define DEV_BUS 0x5
+#define DEV_FNGRP(vendor, function)                                            \
+    (((vendor) & 0xffff) << 16) | ((function) & 0xffff)
+#define DEV_UNIQUE(devkind, variant)                                           \
+    (((devkind) & 0xffff) << 16) | ((variant) & 0xffff)
+#define DEV_KIND_FROM(unique) ((unique) >> 16)
+#define DEV_VAR_FROM(unique) ((unique) & 0xffff)
+
+#define DEV_VN(fngrp) ((fngrp) >> 16)
+#define DEV_FN(fngrp) (((fngrp) & 0xffff))
+
+#define dev_vn(x)      DEVVN_##x
+#define dev_fn(x)      DEVFN_##x
+#define dev_id(x)        DEV_##x
+
+enum devnum_vn
+{
+    dev_vn(GENERIC),
+    #include <listings/devnum_vn.lst>
+};
+
+enum devnum_fn
+{
+    dev_fn(NON),
+    #include <listings/devnum_fn.lst>
+};
+
+enum devnum
+{
+    dev_id(NON),
+    #include <listings/devnum.lst>
+};
+
+struct devident
+{
+    u32_t fn_grp;
+    u32_t unique;
+};
+
+struct devclass
+{
+    u32_t fn_grp;
+    u32_t device;
+    u32_t variant;
+};
+
+static inline int
+devclass_mkvar(struct devclass* class)
+{
+    return class->variant++;
+}
 
 #endif /* __LUNAIX_DEVICE_NUM_H */