aboutsummaryrefslogtreecommitdiffstats
path: root/Demos/Host/LowLevel/PrinterHost/PrinterHost.c
diff options
context:
space:
mode:
Diffstat (limited to 'Demos/Host/LowLevel/PrinterHost/PrinterHost.c')
-rw-r--r--Demos/Host/LowLevel/PrinterHost/PrinterHost.c193
1 files changed, 85 insertions, 108 deletions
diff --git a/Demos/Host/LowLevel/PrinterHost/PrinterHost.c b/Demos/Host/LowLevel/PrinterHost/PrinterHost.c
index 6265eeeb9..59e239e0b 100644
--- a/Demos/Host/LowLevel/PrinterHost/PrinterHost.c
+++ b/Demos/Host/LowLevel/PrinterHost/PrinterHost.c
@@ -50,7 +50,8 @@ int main(void)
for (;;)
{
- USB_Printer_Host();
+ PrinterHost_Task();
+
USB_USBTask();
}
}
@@ -97,6 +98,65 @@ void EVENT_USB_Host_DeviceUnattached(void)
*/
void EVENT_USB_Host_DeviceEnumerationComplete(void)
{
+ puts_P(PSTR("Getting Config Data.\r\n"));
+
+ uint8_t ErrorCode;
+
+ /* Get and process the configuration descriptor data */
+ if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
+ {
+ if (ErrorCode == ControlError)
+ puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
+ else
+ puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
+
+ printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode);
+
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ return;
+ }
+
+ /* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
+ if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
+ {
+ printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
+ " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
+
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ return;
+ }
+
+ /* Some printers use alternate settings to determine the communication protocol used - if so, send a SetInterface
+ * request to switch to the interface alternate setting with the Bidirectional protocol */
+ if (PrinterAltSetting)
+ {
+ if ((ErrorCode = USB_Host_SetInterfaceAltSetting(PrinterInterfaceNumber, PrinterAltSetting)) != HOST_SENDCONTROL_Successful)
+ {
+ printf_P(PSTR(ESC_FG_RED "Control Error (Set Interface).\r\n"
+ " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
+
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ USB_Host_SetDeviceConfiguration(0);
+ return;
+ }
+ }
+
+ puts_P(PSTR("Retrieving Device ID...\r\n"));
+
+ char DeviceIDString[300];
+ if ((ErrorCode = Printer_GetDeviceID(DeviceIDString, sizeof(DeviceIDString))) != HOST_SENDCONTROL_Successful)
+ {
+ printf_P(PSTR(ESC_FG_RED "Control Error (Get Device ID).\r\n"
+ " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
+
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ USB_Host_SetDeviceConfiguration(0);
+ return;
+ }
+
+ printf_P(PSTR("Printer Device ID: %s\r\n"), DeviceIDString);
+
+ puts_P(PSTR("Printer Enumerated.\r\n"));
LEDs_SetAllLEDs(LEDMASK_USB_READY);
}
@@ -126,122 +186,39 @@ void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode,
LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
}
-/** Task to set the configuration of the attached device after it has been enumerated, and to send some test page
- * data to the attached printer.
+/** Task to manage an enumerated USB printer once connected, to display device
+ * information and print a test PCL page.
*/
-void USB_Printer_Host(void)
+void PrinterHost_Task(void)
{
- uint8_t ErrorCode;
+ if (USB_HostState != HOST_STATE_Configured)
+ return;
- switch (USB_HostState)
- {
- case HOST_STATE_Addressed:
- puts_P(PSTR("Getting Config Data.\r\n"));
-
- /* Select the control pipe for the request transfer */
- Pipe_SelectPipe(PIPE_CONTROLPIPE);
-
- /* Get and process the configuration descriptor data */
- if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
- {
- if (ErrorCode == ControlError)
- puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
- else
- puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));
-
- printf_P(PSTR(" -- Error Code: %d\r\n"), ErrorCode);
-
- /* Indicate error via status LEDs */
- 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)
- {
- printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
- " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
-
- /* Indicate error via status LEDs */
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
- /* Wait until USB device disconnected */
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;
- break;
- }
-
- /* Some printers use alternate settings to determine the communication protocol used - if so, send a SetInterface
- * request to switch to the interface alternate setting with the Bidirectional protocol */
- if (PrinterAltSetting)
- {
- if ((ErrorCode = USB_Host_SetInterfaceAltSetting(PrinterInterfaceNumber, PrinterAltSetting)) != HOST_SENDCONTROL_Successful)
- {
- printf_P(PSTR(ESC_FG_RED "Control Error (Set Interface).\r\n"
- " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
-
- /* Indicate error via status LEDs */
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
- /* Wait until USB device disconnected */
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;
- break;
- }
- }
-
- puts_P(PSTR("Retrieving Device ID...\r\n"));
-
- char DeviceIDString[300];
- if ((ErrorCode = Printer_GetDeviceID(DeviceIDString, sizeof(DeviceIDString))) != HOST_SENDCONTROL_Successful)
- {
- printf_P(PSTR(ESC_FG_RED "Control Error (Get Device ID).\r\n"
- " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
-
- /* Indicate error via status LEDs */
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
-
- /* Wait until USB device disconnected */
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;
- break;
- }
-
- printf_P(PSTR("Printer Device ID: %s\r\n"), DeviceIDString);
-
- puts_P(PSTR("Printer Enumerated.\r\n"));
-
- USB_HostState = HOST_STATE_Configured;
- break;
- case HOST_STATE_Configured:
- /* Indicate device busy via the status LEDs */
- LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
-
- char TestPageData[] = "\033%-12345X\033E" "LUFA PCL Test Page" "\033E\033%-12345X";
- uint16_t TestPageLength = strlen(TestPageData);
+ uint8_t ErrorCode;
- printf_P(PSTR("Sending Test Page (%d bytes)...\r\n"), TestPageLength);
+ /* Indicate device busy via the status LEDs */
+ LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
- if ((ErrorCode = Printer_SendData(&TestPageData, TestPageLength)) != PIPE_RWSTREAM_NoError)
- {
- printf_P(PSTR(ESC_FG_RED "Error Sending Test Page.\r\n"
- " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
+ char TestPageData[] = "\033%-12345X\033E" "LUFA PCL Test Page" "\033E\033%-12345X";
+ uint16_t TestPageLength = strlen(TestPageData);
- /* Indicate error via status LEDs */
- LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ printf_P(PSTR("Sending Test Page (%d bytes)...\r\n"), TestPageLength);
- /* Wait until USB device disconnected */
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;
- break;
- }
+ /* Send the test page to the attached printer */
+ if ((ErrorCode = Printer_SendData(&TestPageData, TestPageLength)) != PIPE_RWSTREAM_NoError)
+ {
+ printf_P(PSTR(ESC_FG_RED "Error Sending Test Page.\r\n"
+ " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
- puts_P(PSTR("Test Page Sent.\r\n"));
+ LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
+ USB_Host_SetDeviceConfiguration(0);
+ return;
+ }
- /* Indicate device no longer busy */
- LEDs_SetAllLEDs(LEDMASK_USB_READY);
+ puts_P(PSTR("Test Page Sent.\r\n"));
- USB_HostState = HOST_STATE_WaitForDeviceRemoval;
- break;
- }
+ /* Indicate device no longer busy */
+ LEDs_SetAllLEDs(LEDMASK_USB_READY);
+ USB_Host_SetDeviceConfiguration(0);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 15:00:20 +0000