From 786479faf0605d610c93041191ee5bd6d020ccf9 Mon Sep 17 00:00:00 2001 From: Dean Camera Date: Sun, 19 Jul 2009 12:36:19 +0000 Subject: Add partial project documentation to the incomplete PrinterHost demo. Change over Printer_GetDeviceID() to require a pointer to the destination buffer plus the buffer size, rather than using a pointer to a special structure. Make new Printer_SendData() function to hide the implementation of sending data to an attached printer, cleaning up the main demo source file body. --- .../Incomplete/PrinterHost/Lib/PrinterCommands.h | 24 ++++++++++++---------- 1 file changed, 13 insertions(+), 11 deletions(-) (limited to 'Demos/Host/Incomplete/PrinterHost/Lib/PrinterCommands.h') diff --git a/Demos/Host/Incomplete/PrinterHost/Lib/PrinterCommands.h b/Demos/Host/Incomplete/PrinterHost/Lib/PrinterCommands.h index e9c1d9fb9..01f1f1408 100644 --- a/Demos/Host/Incomplete/PrinterHost/Lib/PrinterCommands.h +++ b/Demos/Host/Incomplete/PrinterHost/Lib/PrinterCommands.h @@ -33,27 +33,29 @@ /* Includes: */ #include + #include #include /* Macros: */ - #define PROTOCOL_UNIDIRECTIONAL 0x01 - #define PROTOCOL_BIDIRECTIONAL 0x02 - #define PROTOCOL_IEEE1284 0x03 - + /** Printer class-specific request to retrieve the printer's ID string */ #define GET_DEVICE_ID 0 + + /** Printer class-specific request to retrieve the printer's virtual port status flags */ #define GET_PORT_STATUS 1 + + /** Printer class-specific request to soft-reset the device */ #define SOFT_RESET 2 - /* Type Defines: */ - typedef struct - { - uint16_t Length; - uint8_t String[128]; - } Device_ID_String_t; + /** Pipe number of the Printer data IN pipe */ + #define PRINTER_DATA_IN_PIPE 1 + + /** Pipe number of the Printer data OUT pipe */ + #define PRINTER_DATA_OUT_PIPE 2 /* Function Prototypes: */ - uint8_t Printer_GetDeviceID(Device_ID_String_t* DeviceIDString); + uint8_t Printer_SendData(char* PrinterCommands); + uint8_t Printer_GetDeviceID(char* DeviceIDString, uint8_t BufferSize); uint8_t Printer_GetPortStatus(uint8_t* PortStatus); uint8_t Printer_SoftReset(void); -- cgit v1.2.3