From c3e4c9a25c2910d2d66d52215b3406b13d5b23d5 Mon Sep 17 00:00:00 2001 From: Yuval Adam Date: Sun, 29 Jun 2014 12:34:32 +0300 Subject: Add more board models --- boards/dk-tm4c129x/usb_dev_msc/usb_dev_msc.c | 616 +++++++++++++++++++++++++++ 1 file changed, 616 insertions(+) create mode 100644 boards/dk-tm4c129x/usb_dev_msc/usb_dev_msc.c (limited to 'boards/dk-tm4c129x/usb_dev_msc/usb_dev_msc.c') diff --git a/boards/dk-tm4c129x/usb_dev_msc/usb_dev_msc.c b/boards/dk-tm4c129x/usb_dev_msc/usb_dev_msc.c new file mode 100644 index 0000000..f74c8b2 --- /dev/null +++ b/boards/dk-tm4c129x/usb_dev_msc/usb_dev_msc.c @@ -0,0 +1,616 @@ +//***************************************************************************** +// +// usb_dev_msc.c - Main routines for the device mass storage class example. +// +// Copyright (c) 2013-2014 Texas Instruments Incorporated. All rights reserved. +// Software License Agreement +// +// Texas Instruments (TI) is supplying this software for use solely and +// exclusively on TI's microcontroller products. The software is owned by +// TI and/or its suppliers, and is protected under applicable copyright +// laws. You may not combine this software with "viral" open-source +// software in order to form a larger program. +// +// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS. +// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT +// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY +// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL +// DAMAGES, FOR ANY REASON WHATSOEVER. +// +// This is part of revision 2.1.0.12573 of the DK-TM4C129X Firmware Package. +// +//***************************************************************************** + +#include +#include +#include "driverlib/rom.h" +#include "driverlib/rom_map.h" +#include "driverlib/sysctl.h" +#include "driverlib/systick.h" +#include "driverlib/udma.h" +#include "grlib/grlib.h" +#include "usblib/usblib.h" +#include "usblib/device/usbdevice.h" +#include "usblib/device/usbdmsc.h" +#include "utils/ustdlib.h" +#include "fatfs/src/diskio.h" +#include "drivers/frame.h" +#include "drivers/kentec320x240x16_ssd2119.h" +#include "drivers/mx66l51235f.h" +#include "drivers/pinout.h" +#include "usbdspiflash.h" +#include "usb_msc_structs.h" + +//***************************************************************************** +// +//! \addtogroup example_list +//!

USB MSC Device (usb_dev_msc)

+//! +//! This example application turns the evaluation board into a USB mass storage +//! class device. The application will use the onboard flash memory for the +//! storage media for the mass storage device. The screen will display the +//! current action occurring on the device ranging from disconnected, reading, +//! writing and idle. +// +//***************************************************************************** + +//***************************************************************************** +// +// The number of ticks to wait before falling back to the idle state. Since +// the tick rate is 100Hz this is approximately 1 second. +// +//***************************************************************************** +#define USBMSC_ACTIVITY_TIMEOUT 100 + +//***************************************************************************** +// +// This enumeration holds the various states that the device can be in during +// normal operation. +// +//***************************************************************************** +volatile enum +{ + // + // Unconfigured. + // + MSC_DEV_DISCONNECTED, + + // + // Connected and fully enumerated but not currently handling a command. + // + MSC_DEV_IDLE, + + // + // Currently reading the device. + // + MSC_DEV_READ, + + // + // Currently writing the device. + // + MSC_DEV_WRITE, +} +g_eMSCState; + +//***************************************************************************** +// +// The Flags that handle updates to the status area to avoid drawing when no +// updates are required.. +// +//***************************************************************************** +#define FLAG_UPDATE_STATUS 1 +static uint32_t g_ui32Flags; +static uint32_t g_ui32IdleTimeout; + +//***************************************************************************** +// +// Graphics context used to show text on the display. +// +//***************************************************************************** +tContext g_sContext; + +//****************************************************************************** +// +// The DMA control structure table. +// +//****************************************************************************** +#ifdef ewarm +#pragma data_alignment=1024 +tDMAControlTable psDMAControlTable[64]; +#elif defined(ccs) +#pragma DATA_ALIGN(psDMAControlTable, 1024) +tDMAControlTable psDMAControlTable[64]; +#else +tDMAControlTable psDMAControlTable[64] __attribute__ ((aligned(1024))); +#endif + +//***************************************************************************** +// +// A buffer used for updating the read/write counts. +// +//***************************************************************************** +static char g_pcBuffer[32]; + +//***************************************************************************** +// +// The system clock frequency in Hz. +// +//***************************************************************************** +uint32_t g_ui32SysClock; + +//***************************************************************************** +// +// The error routine that is called if the driver library encounters an error. +// +//***************************************************************************** +#ifdef DEBUG +void +__error__(char *pcFilename, uint32_t ui32Line) +{ +} +#endif + +//***************************************************************************** +// +// Handles bulk driver notifications related to the receive channel (data from +// the USB host). +// +// \param pvCBData is the client-supplied callback pointer for this channel. +// \param ui32Event identifies the event we are being notified about. +// \param ui32MsgValue is an event-specific value. +// \param pvMsgData is an event-specific pointer. +// +// This function is called by the bulk driver to notify us of any events +// related to operation of the receive data channel (the OUT channel carrying +// data from the USB host). +// +// \return The return value is event-specific. +// +//***************************************************************************** +uint32_t +RxHandler(void *pvCBData, uint32_t ui32Event, uint32_t ui32MsgValue, + void *pvMsgData) +{ + return(0); +} + +//***************************************************************************** +// +// Handles bulk driver notifications related to the transmit channel (data to +// the USB host). +// +// \param pvCBData is the client-supplied callback pointer for this channel. +// \param ui32Event identifies the event we are being notified about. +// \param ui32MsgValue is an event-specific value. +// \param pvMsgData is an event-specific pointer. +// +// This function is called by the bulk driver to notify us of any events +// related to operation of the transmit data channel (the IN channel carrying +// data to the USB host). +// +// \return The return value is event-specific. +// +//***************************************************************************** +uint32_t +TxHandler(void *pvCBData, uint32_t ui32Event, uint32_t ui32MsgValue, + void *pvMsgData) +{ + return(0); +} + +//***************************************************************************** +// +// This function updates the status area of the screen. It uses the current +// state of the application to print the status area. +// +//***************************************************************************** +void +UpdateStatus(char *pcString) +{ + // + // Write the current state to the bottom of screen. + // + GrStringDrawCentered(&g_sContext, pcString, -1, 160, 78, true); +} + +//***************************************************************************** +// +// This function updates the read/write count area of the screen. +// +//***************************************************************************** +void +UpdateCount(uint32_t ui32Count, uint32_t ui32Y) +{ + // + // See if the count is at least a billion. + // + if(ui32Count > 999999999) + { + // + // Format the value with commas separating the billions, millions, + // thousands, and ones. + // + usnprintf(g_pcBuffer, sizeof(g_pcBuffer), " %d,%03d,%03d,%03d ", + ui32Count / 1000000000, (ui32Count / 1000000) % 1000, + (ui32Count / 1000) % 1000, ui32Count % 1000); + } + + // + // See if the count is at least a million. + // + else if(ui32Count > 999999) + { + // + // Format the value with commas separating the millions, thousands, and + // ones. + // + usnprintf(g_pcBuffer, sizeof(g_pcBuffer), " %d,%03d,%03d ", + (ui32Count / 1000000) % 1000, (ui32Count / 1000) % 1000, + ui32Count % 1000); + } + + // + // See if the count is at least a thousand. + // + else if(ui32Count > 999) + { + // + // Format the value with a comma separating the thousands and ones. + // + usnprintf(g_pcBuffer, sizeof(g_pcBuffer), " %d,%03d ", + (ui32Count / 1000) % 1000, ui32Count % 1000); + } + + // + // Otherwise the value is less than a thousand. + // + else + { + // + // Simply print the value. This will occur in two cases: at startup + // when the count is 0 and after the 32-bit count has rolled-over. In + // the later case, a large number of spaces are needed before and after + // the actual value in order to erase the text from the large value + // that preceeded the roll-over. + // + usnprintf(g_pcBuffer, sizeof(g_pcBuffer), " %d ", + ui32Count); + } + + // + // Draw the formatted string. + // + GrStringDrawCentered(&g_sContext, g_pcBuffer, -1, 160, ui32Y, true); +} + +//***************************************************************************** +// +// This function is the call back notification function provided to the USB +// library's mass storage class. +// +//***************************************************************************** +uint32_t +USBDMSCEventCallback(void *pvCBData, uint32_t ui32Event, uint32_t ui32MsgParam, + void *pvMsgData) +{ + // + // Reset the time out every time an event occurs. + // + g_ui32IdleTimeout = USBMSC_ACTIVITY_TIMEOUT; + + switch(ui32Event) + { + // + // Writing to the device. + // + case USBD_MSC_EVENT_WRITING: + { + // + // Only update if this is a change. + // + if(g_eMSCState != MSC_DEV_WRITE) + { + // + // Go to the write state. + // + g_eMSCState = MSC_DEV_WRITE; + + // + // Cause the main loop to update the screen. + // + g_ui32Flags |= FLAG_UPDATE_STATUS; + } + + break; + } + + // + // Reading from the device. + // + case USBD_MSC_EVENT_READING: + { + // + // Only update if this is a change. + // + if(g_eMSCState != MSC_DEV_READ) + { + // + // Go to the read state. + // + g_eMSCState = MSC_DEV_READ; + + // + // Cause the main loop to update the screen. + // + g_ui32Flags |= FLAG_UPDATE_STATUS; + } + + break; + } + + // + // The USB host has disconnected from the device. + // + case USB_EVENT_DISCONNECTED: + { + // + // Go to the disconnected state. + // + g_eMSCState = MSC_DEV_DISCONNECTED; + + // + // Cause the main loop to update the screen. + // + g_ui32Flags |= FLAG_UPDATE_STATUS; + + break; + } + + // + // The USB host has connected to the device. + // + case USB_EVENT_CONNECTED: + { + // + // Go to the idle state to wait for read/writes. + // + g_eMSCState = MSC_DEV_IDLE; + + break; + } + + case USBD_MSC_EVENT_IDLE: + default: + { + break; + } + } + + return(0); +} + +//***************************************************************************** +// +// This is the handler for this SysTick interrupt. This is to detect idle +// state for the SPI flash. +// +//***************************************************************************** +void +SysTickHandler(void) +{ + if(g_ui32IdleTimeout != 0) + { + g_ui32IdleTimeout--; + } +} + +//***************************************************************************** +// +// This is the main loop that runs the application. +// +//***************************************************************************** +int +main(void) +{ + uint32_t ui32Read, ui32Write; + + // + // Run from the PLL at 120 MHz. + // + g_ui32SysClock = MAP_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ | + SYSCTL_OSC_MAIN | SYSCTL_USE_PLL | + SYSCTL_CFG_VCO_480), 120000000); + + // + // Configure the device pins. + // + PinoutSet(); + + // + // Initialize the display driver. + // + Kentec320x240x16_SSD2119Init(g_ui32SysClock); + + // + // Initialize the graphics context. + // + GrContextInit(&g_sContext, &g_sKentec320x240x16_SSD2119); + + // + // Draw the application frame. + // + FrameDraw(&g_sContext, "usb-dev-msc"); + + // + // Place the static status text on the display. + // + GrStringDrawCentered(&g_sContext, "Status", -1, 160, 58, false); + GrStringDrawCentered(&g_sContext, "Bytes Read", -1, 160, 118, false); + GrStringDrawCentered(&g_sContext, "Bytes Written", -1, 160, 178, false); + GrContextForegroundSet(&g_sContext, ClrGray); + UpdateCount(0, 138); + UpdateCount(0, 198); + + // + // Configure SysTick for a 100Hz interrupt. This is to detect idle state + // every 10ms after a state change. + // + ROM_SysTickPeriodSet(g_ui32SysClock / 100); + ROM_SysTickEnable(); + ROM_SysTickIntEnable(); + + // + // Configure and enable uDMA + // + ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UDMA); + SysCtlDelay(10); + ROM_uDMAControlBaseSet(&psDMAControlTable[0]); + ROM_uDMAEnable(); + + // + // Initialize the idle timeout and reset all flags. + // + g_ui32IdleTimeout = 0; + g_ui32Flags = 0; + + // + // Initialize the state to idle. + // + g_eMSCState = MSC_DEV_DISCONNECTED; + + // + // Draw the status bar and set it to idle. + // + UpdateStatus("Disconnected"); + + // + // Enable the USB controller. + // + ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_USB0); + + // + // Enable the SSI3 used by SPI flash. + // + ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_SSI3); + ROM_SysCtlPeripheralReset(SYSCTL_PERIPH_SSI3); + + // + // Set the USB stack mode to Device mode with VBUS monitoring. + // + USBStackModeSet(0, eUSBModeDevice, 0); + + // + // Pass our device information to the USB library and place the device + // on the bus. + // + USBDMSCInit(0, (tUSBDMSCDevice*)&g_sMSCDevice); + + // + // Initialize the SD card, if present. This prevents it from interfering + // with accesses to the SPI flash. + // + disk_initialize(0); + + // + // Initialize MX66L51235F Flash memory. + // + MX66L51235FInit(g_ui32SysClock); + + // + // Drop into the main loop. + // + ui32Read = g_ui32ReadCount; + ui32Write = g_ui32WriteCount; + while(1) + { + switch(g_eMSCState) + { + case MSC_DEV_READ: + { + // + // Update the screen if necessary. + // + if(g_ui32Flags & FLAG_UPDATE_STATUS) + { + UpdateStatus(" Reading "); + g_ui32Flags &= ~FLAG_UPDATE_STATUS; + } + + // + // If there is no activity then return to the idle state. + // + if(g_ui32IdleTimeout == 0) + { + UpdateStatus(" Idle "); + g_eMSCState = MSC_DEV_IDLE; + } + + break; + } + + case MSC_DEV_WRITE: + { + // + // Update the screen if necessary. + // + if(g_ui32Flags & FLAG_UPDATE_STATUS) + { + UpdateStatus(" Writing "); + g_ui32Flags &= ~FLAG_UPDATE_STATUS; + } + + // + // If there is no activity then return to the idle state. + // + if(g_ui32IdleTimeout == 0) + { + UpdateStatus(" Idle "); + g_eMSCState = MSC_DEV_IDLE; + } + break; + } + + case MSC_DEV_DISCONNECTED: + { + // + // Update the screen if necessary. + // + if(g_ui32Flags & FLAG_UPDATE_STATUS) + { + UpdateStatus(" Disconnected "); + g_ui32Flags &= ~FLAG_UPDATE_STATUS; + } + break; + } + + case MSC_DEV_IDLE: + { + break; + } + + default: + { + break; + } + } + + // + // Update the read count if it has changed. + // + if(g_ui32ReadCount != ui32Read) + { + ui32Read = g_ui32ReadCount; + UpdateCount(ui32Read, 138); + } + + // + // Update the write count if it has changed. + // + if(g_ui32WriteCount != ui32Write) + { + ui32Write = g_ui32WriteCount; + UpdateCount(ui32Write, 198); + } + } +} -- cgit v1.3.1