greybus: greybus_desc.h created
diff --git a/drivers/staging/greybus/greybus_desc.h b/drivers/staging/greybus/greybus_desc.h
new file mode 100644
index 0000000..6a3674d
--- /dev/null
+++ b/drivers/staging/greybus/greybus_desc.h
@@ -0,0 +1,95 @@
+/*
+ * Greybus device descriptor definition
+ *
+ * Defined in the "Greybus Application Protocol" document.
+ * See that document for any details on these values and structures.
+ *
+ * Copyright 2014 Google Inc.
+ */
+
+#ifndef __GREYBUS_DESC_H
+#define __GREYBUS_DESC_H
+
+struct greybus_decriptor_block_header {
+ __le16 size;
+ u8 version_major;
+ u8 version_minor;
+};
+
+enum greybus_descriptor_type {
+ GREYBUS_TYPE_INVALID = 0x0000,
+ GREYBUS_TYPE_DEVICE_ID = 0x0001,
+ GREYBUS_TYPE_SERIAL_NUMBER = 0x0002,
+ GREYBUS_TYPE_DEVICE_STRING = 0x0003,
+ GREYBUS_TYPE_CPORT = 0x0004,
+ GREYBUS_TYPE_FUNCTION = 0x0005,
+};
+
+struct greybus_descriptor_header {
+ __le16 size;
+ __le16 type; /* enum greybus_descriptor_type */
+};
+
+
+struct greybus_descriptor_deviceid {
+ __le16 vendor;
+ __le16 product;
+ __le16 version;
+ u8 vendor_stringid;
+ u8 product_stringid;
+};
+
+struct greybus_descriptor_serial_number {
+ __le64 serial_number;
+};
+
+struct greybus_descriptor_string {
+ u8 id;
+ __le16 length;
+ u8 string[0];
+};
+
+struct greybus_descriptor_cport {
+ __le16 number;
+ u8 speed; // FIXME
+ u8 reserved;
+};
+
+enum greybus_function_class {
+ GREYBUS_FUNCTION_CONTROL = 0x00,
+ GREYBUS_FUNCTION_USB = 0x01,
+ GREYBUS_FUNCTION_GPIO = 0x02,
+ GREYBUS_FUNCTION_SPI = 0x03,
+ GREYBUS_FUNCTION_UART = 0x04,
+ GREYBUS_FUNCTION_PWM = 0x05,
+ GREYBUS_FUNCTION_I2S = 0x06,
+ GREYBUS_FUNCTION_I2C = 0x07,
+ GREYBUS_FUNCTION_SDIO = 0x08,
+ GREYBUS_FUNCTION_HID = 0x09,
+ GREYBUS_FUNCTION_DISPLAY = 0x0a,
+ GREYBUS_FUNCTION_CAMERA = 0x0b,
+ GREYBUS_FUNCTION_SENSOR = 0x0c,
+ GREYBUS_FUNCTION_VENDOR = 0xff,
+};
+
+struct greybus_descriptor_function {
+ __le16 number;
+ __le16 cport;
+ u8 function_class; /* enum greybus_function_class */
+ u8 function_subclass;
+ u8 function_protocol;
+ u8 reserved;
+};
+
+struct greybus_msg_descriptor {
+ struct greybus_descriptor_header header;
+ union {
+ struct greybus_descriptor_deviceid device_id;
+ struct greybus_descriptor_serial_number serial_number;
+ struct greybus_descriptor_string string;
+ struct greybus_descriptor_cport cport;
+ struct greybus_descriptor_function function;
+ };
+};
+
+#endif /* __GREYBUS_DESC_H */