Minor documentation improvements.

[pub/USBasp.git] / Projects / MissileLauncher / MissileLauncher.c

diff --git a/Projects/MissileLauncher/MissileLauncher.c b/Projects/MissileLauncher/MissileLauncher.c
index 6a98b54..14134d7 100644 (file)
--- a/Projects/MissileLauncher/MissileLauncher.c
+++ b/Projects/MissileLauncher/MissileLauncher.c
@@ -8,7 +8,7 @@
  */
 
 /*
-  Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2013  Dean Camera (dean [at] fourwalledcubicle [dot] com)
   Copyright 2010  Dave Fletcher (fletch [at] fletchtronics [dot] net)
 
   Permission to use, copy, modify, distribute, and sell this
@@ -20,7 +20,7 @@
   advertising or publicity pertaining to distribution of the
   software without specific, written prior permission.
 
-  The author disclaim all warranties with regard to this
+  The author disclaims all warranties with regard to this
   software, including all implied warranties of merchantability
   and fitness.  In no event shall the author be liable for any
   special, indirect or consequential damages or any damages
@@ -98,13 +98,13 @@ int main(void)
        CmdState = CMD_STOP;
 
        LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-       sei();
+       GlobalInterruptEnable();
 
        for (;;)
        {
                Read_Joystick_Status();
+               DiscardNextReport();
 
-               HID_Host_Task();
                USB_USBTask();
        }
 }
@@ -158,7 +158,7 @@ void Send_Command_Report(const uint8_t* const Report,
        WriteNextReport(CmdBuffer, ReportSize);
 }
 
-/** Sends one of the CMD_* command constants to the attached device.
+/** Sends one of the \c CMD_* command constants to the attached device.
  *
  *  \param[in] Command  One of the command constants.
  */
@@ -198,6 +198,22 @@ void EVENT_USB_Host_DeviceUnattached(void)
  */
 void EVENT_USB_Host_DeviceEnumerationComplete(void)
 {
+       LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
+
+       /* Get and process the configuration descriptor data */
+       if (ProcessConfigurationDescriptor() != SuccessfulConfigRead)
+       {
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+               return;
+       }
+
+       /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
+       if (USB_Host_SetDeviceConfiguration(1) != HOST_SENDCONTROL_Successful)
+       {
+               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+               return;
+       }
+
        LEDs_SetAllLEDs(LEDMASK_USB_READY);
 }
 
@@ -222,6 +238,9 @@ void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
 /** Reads in and discards the next report from the attached device. */
 void DiscardNextReport(void)
 {
+       if (USB_HostState != HOST_STATE_Configured)
+         return;
+
        /* Select and unfreeze HID data IN pipe */
        Pipe_SelectPipe(HID_DATA_IN_PIPE);
        Pipe_Unfreeze();
@@ -250,6 +269,9 @@ void DiscardNextReport(void)
 void WriteNextReport(uint8_t* const ReportOUTData,
                      const uint16_t ReportLength)
 {
+       if (USB_HostState != HOST_STATE_Configured)
+         return;
+
        /* Select and unfreeze HID data OUT pipe */
        Pipe_SelectPipe(HID_DATA_OUT_PIPE);
 
@@ -297,45 +319,3 @@ void WriteNextReport(uint8_t* const ReportOUTData,
        }
 }
 
-/** Task to set the configuration of the attached device after it has been enumerated, and to read and process
- *  HID reports from the device and to send reports if desired.
- */
-void HID_Host_Task(void)
-{
-       uint8_t ErrorCode;
-
-       /* Switch to determine what user-application handled host state the host state machine is in */
-       switch (USB_HostState)
-       {
-               case HOST_STATE_Addressed:
-                       /* Get and process the configuration descriptor data */
-                       if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
-                       {
-                               /* Indicate error status */
-                               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
-                               /* Wait until USB device disconnected */
-                               USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                               break;
-                       }
-
-                       /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
-                       if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
-                       {
-                               /* Indicate error status */
-                               LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
-                               /* Wait until USB device disconnected */
-                               USB_HostState = HOST_STATE_WaitForDeviceRemoval;
-                               break;
-                       }
-
-                       USB_HostState = HOST_STATE_Configured;
-                       break;
-               case HOST_STATE_Configured:
-                       DiscardNextReport();
-
-                       break;
-       }
-}
-