Demos/Host/ClassDriver/PrinterHost/PrinterHost.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2011.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 /** \file
  32  *
  33  *  Main source file for the PrinterHost demo. This file contains the main tasks of
  34  *  the demo and is responsible for the initial application hardware configuration.
  35  */
  36
  37 #include "PrinterHost.h"
  38
  39 /** LUFA Printer Class driver interface configuration and state information. This structure is
  40  *  passed to all Printer Class driver functions, so that multiple instances of the same class
  41  *  within a device can be differentiated from one another.
  42  */
  43 USB_ClassInfo_PRNT_Host_t Printer_PRNT_Interface =
  44         {
  45                 .Config =
  46                         {
  47                                 .DataINPipeNumber       = 1,
  48                                 .DataINPipeDoubleBank   = false,
  49
  50                                 .DataOUTPipeNumber      = 2,
  51                                 .DataOUTPipeDoubleBank  = false,
  52                         },
  53         };
  54
  55
  56 /** Main program entry point. This routine configures the hardware required by the application, then
  57  *  enters a loop to run the application tasks in sequence.
  58  */
  59 int main(void)
  60 {
  61         SetupHardware();
  62
  63         puts_P(PSTR(ESC_FG_CYAN "Printer Host Demo running.\r\n" ESC_FG_WHITE));
  64
  65         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  66         sei();
  67
  68         for (;;)
  69         {
  70                 PrinterHost_Task();
  71
  72                 PRNT_Host_USBTask(&Printer_PRNT_Interface);
  73                 USB_USBTask();
  74         }
  75 }
  76
  77 /** Configures the board hardware and chip peripherals for the demo's functionality. */
  78 void SetupHardware(void)
  79 {
  80         /* Disable watchdog if enabled by bootloader/fuses */
  81         MCUSR &= ~(1 << WDRF);
  82         wdt_disable();
  83
  84         /* Disable clock division */
  85         clock_prescale_set(clock_div_1);
  86
  87         /* Hardware Initialization */
  88         Serial_Init(9600, false);
  89         LEDs_Init();
  90         USB_Init();
  91
  92         /* Create a stdio stream for the serial port for stdin and stdout */
  93         Serial_CreateStream(NULL);
  94 }
  95
  96 /** Task to manage an enumerated USB printer once connected, to display device
  97  *  information and print a test PCL page.
  98  */
  99 void PrinterHost_Task(void)
 100 {
 101         if (USB_HostState != HOST_STATE_Configured)
 102           return;
 103
 104         LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
 105
 106         puts_P(PSTR("Retrieving Device ID...\r\n"));
 107
 108         char DeviceIDString[300];
 109         if (PRNT_Host_GetDeviceID(&Printer_PRNT_Interface, DeviceIDString,
 110                                   sizeof(DeviceIDString)) != HOST_SENDCONTROL_Successful)
 111         {
 112                 puts_P(PSTR("Error Getting Device ID.\r\n"));
 113                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 114                 USB_Host_SetDeviceConfiguration(0);
 115                 return;
 116         }
 117
 118         printf_P(PSTR("Device ID: %s.\r\n"), DeviceIDString);
 119
 120         char     TestPageData[] = "\033%-12345X\033E" "LUFA PCL Test Page" "\033E\033%-12345X";
 121         uint16_t TestPageLength = strlen(TestPageData);
 122
 123         printf_P(PSTR("Sending Test Page (%d bytes)...\r\n"), TestPageLength);
 124
 125         if (PRNT_Host_SendData(&Printer_PRNT_Interface, &TestPageData, TestPageLength) != PIPE_RWSTREAM_NoError)
 126         {
 127                 puts_P(PSTR("Error Sending Page Data.\r\n"));
 128                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 129                 USB_Host_SetDeviceConfiguration(0);
 130                 return;
 131         }
 132
 133         puts_P(PSTR("Test Page Sent.\r\n"));
 134
 135         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 136         USB_Host_SetDeviceConfiguration(0);
 137 }
 138
 139 /** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and
 140  *  starts the library USB task to begin the enumeration and USB management process.
 141  */
 142 void EVENT_USB_Host_DeviceAttached(void)
 143 {
 144         puts_P(PSTR("Device Attached.\r\n"));
 145         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 146 }
 147
 148 /** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and
 149  *  stops the library USB task management process.
 150  */
 151 void EVENT_USB_Host_DeviceUnattached(void)
 152 {
 153         puts_P(PSTR("\r\nDevice Unattached.\r\n"));
 154         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 155 }
 156
 157 /** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully
 158  *  enumerated by the host and is now ready to be used by the application.
 159  */
 160 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 161 {
 162         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 163
 164         uint16_t ConfigDescriptorSize;
 165         uint8_t  ConfigDescriptorData[512];
 166
 167         if (USB_Host_GetDeviceConfigDescriptor(1, &ConfigDescriptorSize, ConfigDescriptorData,
 168                                                sizeof(ConfigDescriptorData)) != HOST_GETCONFIG_Successful)
 169         {
 170                 puts_P(PSTR("Error Retrieving Configuration Descriptor.\r\n"));
 171                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 172                 return;
 173         }
 174
 175         if (PRNT_Host_ConfigurePipes(&Printer_PRNT_Interface,
 176                                      ConfigDescriptorSize, ConfigDescriptorData) != PRNT_ENUMERROR_NoError)
 177         {
 178                 puts_P(PSTR("Attached Device Not a Valid Printer Class Device.\r\n"));
 179                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 180                 return;
 181         }
 182
 183         if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
 184         {
 185                 puts_P(PSTR("Error Setting Device Configuration.\r\n"));
 186                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 187                 return;
 188         }
 189
 190         if (PRNT_Host_SetBidirectionalMode(&Printer_PRNT_Interface) != HOST_SENDCONTROL_Successful)
 191         {
 192                 puts_P(PSTR("Error Setting Bidirectional Mode.\r\n"));
 193                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 194                 USB_Host_SetDeviceConfiguration(0);
 195                 return;
 196         }
 197
 198         puts_P(PSTR("Printer Device Enumerated.\r\n"));
 199         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 200 }
 201
 202 /** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */
 203 void EVENT_USB_Host_HostError(const uint8_t ErrorCode)
 204 {
 205         USB_Disable();
 206
 207         printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n"
 208                                  " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode);
 209
 210         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 211         for(;;);
 212 }
 213
 214 /** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while
 215  *  enumerating an attached USB device.
 216  */
 217 void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
 218                                             const uint8_t SubErrorCode)
 219 {
 220         printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n"
 221                                  " -- Error Code %d\r\n"
 222                                  " -- Sub Error Code %d\r\n"
 223                                  " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState);
 224
 225         LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 226 }
 227