Add DB defines and Header for SceUsbSerial (#81)

* Added DB defines for SceUsbSerial
Added in header for SceUsbSerial

* Changed to usbserial.h
updated db.json to camelCase
Fixed spelling errors in usbserial.h
added documentation from wiki to usbserial.h

* sceUsbSerialget_len -> sceUsbSerialGetLen
sceUsbSerialget_lenForKernel -> sceUsbSerialGetLenForKernel

* Dangit missed some information on the wiki!

* fix camelCase.

* fix some formatting issues

* Split usbserial.h to psp2kern/kernel/usbserial.h
fix some documentation.

* Moved kernel defines for usbserial.h  to appropriate folder
Fix preprocessor macros
update copyright

* Git decided my changes were not important and chose to ignore them

1 files changed, 83 insertions, 0 deletions

diff --git a/include/user/usbserial.h b/include/user/usbserial.h
new file mode 100644
index 0000000..baf4c41
--- /dev/null
+++ b/include/user/usbserial.h
@@ -0,0 +1,83 @@
+#ifndef _PSP2_USBSERIAL_H_
+#define _PSP2_USBSERIAL_H_
+
+#include <psp2/types.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * Activate USB serial device
+ *
+ * @return 0 on success, < 0 on error
+ *
+ * @note The user is responsible for making sure no other UDC driver is active. This activates UDC as a "PS Vita" Type D device. 
+ *
+ * @note Wrapper for kernel function sceUsbSerialStart()
+ */
+int sceUsbSerialStart(void);
+
+/**
+ * Setup USB serial device
+ *
+ * @return 0 on success, < 0 on error
+ *
+ * @param unk Unknown 
+ *
+ * @note Wrapper for kernel function sceUsbSerialSetup()
+ */
+int sceUsbSerialSetup(int unk);	
+
+/**
+ * Close USB serial device
+ *
+ * @note Wrapper for kernel function sceUsbSerialClose()
+ */
+int sceUsbSerialClose(void);
+
+/**
+ * Close USB serial device
+ *
+ * @return Returns 1 when serial port is open
+ *
+ * @note Wrapper for kernel function sceUsbSerialStatus()
+ */
+int sceUsbSerialStatus(void);
+
+/**
+ * Get receive buffer length
+ *
+ * @return Returns length of USB rx buffer
+ *
+ * @note Wrapper for kernel function sceUsbSerialGetLen()
+ */
+unsigned int sceUsbSerialGetLen(void);
+
+/**
+ * Send data
+ * @param[in] *buffer data to send over usb
+ * @param len int len of serial buffer data 
+ * @param unk1 Unknown
+ * @param unk2 Unknown
+ * @note max send length is 0x10000
+ * @note Wrapper for kernel function sceUsbSerialSend()
+ */
+unsigned int sceUsbSerialSend(const void *buffer, unsigned int len, int unk1, int unk2);
+
+/**
+ * Receive Data
+ *
+ * @param[out] *buffer buffer for incoming data
+ * @param max_len max data length to receive
+ * @param unk1 Unknown
+ * @param unk2 Unknown
+ * @note max recv length is 0x10000
+ * @note Wrapper for kernel function sceUsbSerialRecv()
+ */
+unsigned int sceUsbSerialRecv(void *buffer, unsigned int max_len, int unk1, int unk2);
+
+#ifdef __cplusplus
+}
+#endif
+#endif