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Diffstat (limited to 'lib/lufa/Demos/Host/LowLevel/StillImageHost/StillImageHost.c')
| -rw-r--r-- | lib/lufa/Demos/Host/LowLevel/StillImageHost/StillImageHost.c | 365 |
1 files changed, 365 insertions, 0 deletions
diff --git a/lib/lufa/Demos/Host/LowLevel/StillImageHost/StillImageHost.c b/lib/lufa/Demos/Host/LowLevel/StillImageHost/StillImageHost.c new file mode 100644 index 0000000000..9df9531bfc --- /dev/null +++ b/lib/lufa/Demos/Host/LowLevel/StillImageHost/StillImageHost.c @@ -0,0 +1,365 @@ +/* + LUFA Library + Copyright (C) Dean Camera, 2017. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + Permission to use, copy, modify, distribute, and sell this + software and its documentation for any purpose is hereby granted + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + 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 + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * Main source file for the StillImageHost demo. This file contains the main tasks of + * the demo and is responsible for the initial application hardware configuration. + */ + +#include "StillImageHost.h" + +/** Main program entry point. This routine configures the hardware required by the application, then + * enters a loop to run the application tasks in sequence. + */ +int main(void) +{ + SetupHardware(); + + puts_P(PSTR(ESC_FG_CYAN "Still Image Host Demo running.\r\n" ESC_FG_WHITE)); + + LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); + GlobalInterruptEnable(); + + for (;;) + { + StillImageHost_Task(); + + USB_USBTask(); + } +} + +/** Configures the board hardware and chip peripherals for the demo's functionality. */ +void SetupHardware(void) +{ +#if (ARCH == ARCH_AVR8) + /* Disable watchdog if enabled by bootloader/fuses */ + MCUSR &= ~(1 << WDRF); + wdt_disable(); + + /* Disable clock division */ + clock_prescale_set(clock_div_1); +#endif + + /* Hardware Initialization */ + Serial_Init(9600, false); + LEDs_Init(); + USB_Init(); + + /* Create a stdio stream for the serial port for stdin and stdout */ + Serial_CreateStream(NULL); +} + +/** Event handler for the USB_DeviceAttached event. This indicates that a device has been attached to the host, and + * starts the library USB task to begin the enumeration and USB management process. + */ +void EVENT_USB_Host_DeviceAttached(void) +{ + puts_P(PSTR(ESC_FG_GREEN "Device Attached.\r\n" ESC_FG_WHITE)); + LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING); +} + +/** Event handler for the USB_DeviceUnattached event. This indicates that a device has been removed from the host, and + * stops the library USB task management process. + */ +void EVENT_USB_Host_DeviceUnattached(void) +{ + puts_P(PSTR(ESC_FG_GREEN "\r\nDevice Unattached.\r\n" ESC_FG_WHITE)); + LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY); +} + +/** Event handler for the USB_DeviceEnumerationComplete event. This indicates that a device has been successfully + * enumerated by the host and is now ready to be used by the application. + */ +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" ESC_FG_WHITE), 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; + } + + puts_P(PSTR("Still Image Device Enumerated.\r\n")); + LEDs_SetAllLEDs(LEDMASK_USB_READY); +} + +/** Event handler for the USB_HostError event. This indicates that a hardware error occurred while in host mode. */ +void EVENT_USB_Host_HostError(const uint8_t ErrorCode) +{ + USB_Disable(); + + printf_P(PSTR(ESC_FG_RED "Host Mode Error\r\n" + " -- Error Code %d\r\n" ESC_FG_WHITE), ErrorCode); + + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); + for(;;); +} + +/** Event handler for the USB_DeviceEnumerationFailed event. This indicates that a problem occurred while + * enumerating an attached USB device. + */ +void EVENT_USB_Host_DeviceEnumerationFailed(const uint8_t ErrorCode, + const uint8_t SubErrorCode) +{ + printf_P(PSTR(ESC_FG_RED "Dev Enum Error\r\n" + " -- Error Code %d\r\n" + " -- Sub Error Code %d\r\n" + " -- In State %d\r\n" ESC_FG_WHITE), ErrorCode, SubErrorCode, USB_HostState); + + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); +} + +/** Task to print device information through the serial port, and open/close a test PIMA session with the + * attached Still Image device. + */ +void StillImageHost_Task(void) +{ + if (USB_HostState != HOST_STATE_Configured) + return; + + uint8_t ErrorCode; + + /* Indicate device busy via the status LEDs */ + LEDs_SetAllLEDs(LEDMASK_USB_BUSY); + + puts_P(PSTR("Retrieving Device Info...\r\n")); + + PIMA_SendBlock = (PIMA_Container_t) + { + .DataLength = PIMA_COMMAND_SIZE(0), + .Type = PIMA_CONTAINER_CommandBlock, + .Code = PIMA_OPERATION_GETDEVICEINFO, + .TransactionID = 0x00000000, + .Params = {}, + }; + + /* Send the GETDEVICEINFO block */ + SImage_SendBlockHeader(); + + /* Receive the response data block */ + if ((ErrorCode = SImage_ReceiveBlockHeader()) != PIPE_RWSTREAM_NoError) + { + ShowCommandError(ErrorCode, false); + USB_Host_SetDeviceConfiguration(0); + return; + } + + /* Calculate the size of the returned device info data structure */ + uint16_t DeviceInfoSize = (PIMA_ReceivedBlock.DataLength - PIMA_COMMAND_SIZE(0)); + + /* Create a buffer large enough to hold the entire device info */ + uint8_t DeviceInfo[DeviceInfoSize]; + + /* Read in the data block data (containing device info) */ + SImage_ReadData(DeviceInfo, DeviceInfoSize); + + /* Once all the data has been read, the pipe must be cleared before the response can be sent */ + Pipe_ClearIN(); + + /* Create a pointer for walking through the info dataset */ + uint8_t* DeviceInfoPos = DeviceInfo; + + /* Skip over the data before the unicode device information strings */ + DeviceInfoPos += 8; // Skip to VendorExtensionDesc String + DeviceInfoPos += (1 + UNICODE_STRING_LENGTH(*DeviceInfoPos)); // Skip over VendorExtensionDesc String + DeviceInfoPos += 2; // Skip over FunctionalMode + DeviceInfoPos += (4 + (*(uint32_t*)DeviceInfoPos << 1)); // Skip over Supported Operations Array + DeviceInfoPos += (4 + (*(uint32_t*)DeviceInfoPos << 1)); // Skip over Supported Events Array + DeviceInfoPos += (4 + (*(uint32_t*)DeviceInfoPos << 1)); // Skip over Supported Device Properties Array + DeviceInfoPos += (4 + (*(uint32_t*)DeviceInfoPos << 1)); // Skip over Capture Formats Array + DeviceInfoPos += (4 + (*(uint32_t*)DeviceInfoPos << 1)); // Skip over Image Formats Array + + /* Extract and convert the Manufacturer Unicode string to ASCII and print it through the USART */ + char Manufacturer[*DeviceInfoPos]; + UnicodeToASCII(DeviceInfoPos, Manufacturer); + printf_P(PSTR(" Manufacturer: %s\r\n"), Manufacturer); + + DeviceInfoPos += 1 + UNICODE_STRING_LENGTH(*DeviceInfoPos); // Skip over Manufacturer String + + /* Extract and convert the Model Unicode string to ASCII and print it through the USART */ + char Model[*DeviceInfoPos]; + UnicodeToASCII(DeviceInfoPos, Model); + printf_P(PSTR(" Model: %s\r\n"), Model); + + DeviceInfoPos += 1 + UNICODE_STRING_LENGTH(*DeviceInfoPos); // Skip over Model String + + /* Extract and convert the Device Version Unicode string to ASCII and print it through the USART */ + char DeviceVersion[*DeviceInfoPos]; + UnicodeToASCII(DeviceInfoPos, DeviceVersion); + printf_P(PSTR(" Device Version: %s\r\n"), DeviceVersion); + + /* Receive the final response block from the device */ + if ((ErrorCode = SImage_ReceiveBlockHeader()) != PIPE_RWSTREAM_NoError) + { + ShowCommandError(ErrorCode, false); + USB_Host_SetDeviceConfiguration(0); + return; + } + + /* Verify that the command completed successfully */ + if ((PIMA_ReceivedBlock.Type != PIMA_CONTAINER_ResponseBlock) || (PIMA_ReceivedBlock.Code != PIMA_RESPONSE_OK)) + { + ShowCommandError(PIMA_ReceivedBlock.Code, true); + USB_Host_SetDeviceConfiguration(0); + return; + } + + puts_P(PSTR("Opening Session...\r\n")); + + PIMA_SendBlock = (PIMA_Container_t) + { + .DataLength = PIMA_COMMAND_SIZE(1), + .Type = PIMA_CONTAINER_CommandBlock, + .Code = PIMA_OPERATION_OPENSESSION, + .TransactionID = 0x00000000, + .Params = {0x00000001}, + }; + + /* Send the OPENSESSION block, open a session with an ID of 0x0001 */ + SImage_SendBlockHeader(); + + /* Receive the response block from the device */ + if ((ErrorCode = SImage_ReceiveBlockHeader()) != PIPE_RWSTREAM_NoError) + { + ShowCommandError(ErrorCode, false); + USB_Host_SetDeviceConfiguration(0); + return; + } + + /* Verify that the command completed successfully */ + if ((PIMA_ReceivedBlock.Type != PIMA_CONTAINER_ResponseBlock) || (PIMA_ReceivedBlock.Code != PIMA_RESPONSE_OK)) + { + ShowCommandError(PIMA_ReceivedBlock.Code, true); + USB_Host_SetDeviceConfiguration(0); + return; + } + + puts_P(PSTR("Closing Session...\r\n")); + + PIMA_SendBlock = (PIMA_Container_t) + { + .DataLength = PIMA_COMMAND_SIZE(1), + .Type = PIMA_CONTAINER_CommandBlock, + .Code = PIMA_OPERATION_CLOSESESSION, + .TransactionID = 0x00000001, + .Params = {0x00000001}, + }; + + /* Send the CLOSESESSION block, close the session with an ID of 0x0001 */ + SImage_SendBlockHeader(); + + /* Receive the response block from the device */ + if ((ErrorCode = SImage_ReceiveBlockHeader()) != PIPE_RWSTREAM_NoError) + { + ShowCommandError(ErrorCode, false); + USB_Host_SetDeviceConfiguration(0); + return; + } + + /* Verify that the command completed successfully */ + if ((PIMA_ReceivedBlock.Type != PIMA_CONTAINER_ResponseBlock) || (PIMA_ReceivedBlock.Code != PIMA_RESPONSE_OK)) + { + ShowCommandError(PIMA_ReceivedBlock.Code, true); + USB_Host_SetDeviceConfiguration(0); + return; + } + + puts_P(PSTR("Done.\r\n")); + + /* Indicate device no longer busy */ + LEDs_SetAllLEDs(LEDMASK_USB_READY); + USB_Host_SetDeviceConfiguration(0); +} + +/** Function to convert a given Unicode encoded string to ASCII. This function will only work correctly on Unicode + * strings which contain ASCII printable characters only. + * + * \param[in] UnicodeString Pointer to a Unicode encoded input string + * \param[out] Buffer Pointer to a buffer where the converted ASCII string should be stored + */ +void UnicodeToASCII(uint8_t* UnicodeString, + char* Buffer) +{ + /* Get the number of characters in the string, skip to the start of the string data */ + uint8_t CharactersRemaining = *(UnicodeString++); + + /* Loop through the entire unicode string */ + while (CharactersRemaining--) + { + /* Load in the next unicode character (only the lower byte, as only Unicode coded ASCII is supported) */ + *(Buffer++) = *UnicodeString; + + /* Jump to the next unicode character */ + UnicodeString += 2; + } + + /* Null terminate the string */ + *Buffer = 0; +} + +/** Displays a PIMA command error via the device's serial port. + * + * \param[in] ErrorCode Error code of the function which failed to complete successfully + * \param[in] ResponseCodeError Indicates if the error is due to a command failed indication from the device, or a communication failure + */ +void ShowCommandError(uint8_t ErrorCode, + bool ResponseCodeError) +{ + const char* FailureType = ((ResponseCodeError) ? PSTR("Response Code != OK") : PSTR("Transaction Fail")); + + printf_P(PSTR(ESC_FG_RED "Command Error (%S).\r\n" + " -- Error Code %d\r\n" ESC_FG_WHITE), FailureType, ErrorCode); + + /* Indicate error via status LEDs */ + LEDs_SetAllLEDs(LEDMASK_USB_ERROR); +} + |