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/ek-lm4f232/usb_dev_msc/usb_dev_msc.c | 617 ++++++++++++++++++++++++++++ 1 file changed, 617 insertions(+) create mode 100644 boards/ek-lm4f232/usb_dev_msc/usb_dev_msc.c (limited to 'boards/ek-lm4f232/usb_dev_msc/usb_dev_msc.c') diff --git a/boards/ek-lm4f232/usb_dev_msc/usb_dev_msc.c b/boards/ek-lm4f232/usb_dev_msc/usb_dev_msc.c new file mode 100644 index 0000000..764e4ff --- /dev/null +++ b/boards/ek-lm4f232/usb_dev_msc/usb_dev_msc.c @@ -0,0 +1,617 @@ +//***************************************************************************** +// +// usb_dev_msc.c - Main routines for the device mass storage class example. +// +// Copyright (c) 2012-2014 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 EK-LM4F232 Firmware Package. +// +//***************************************************************************** + +#include +#include +#include "inc/hw_ints.h" +#include "inc/hw_memmap.h" +#include "inc/hw_types.h" +#include "driverlib/debug.h" +#include "driverlib/sysctl.h" +#include "driverlib/rom.h" +#include "driverlib/systick.h" +#include "driverlib/usb.h" +#include "driverlib/gpio.h" +#include "driverlib/udma.h" +#include "driverlib/pin_map.h" +#include "grlib/grlib.h" +#include "usblib/usblib.h" +#include "usblib/usb-ids.h" +#include "usblib/device/usbdevice.h" +#include "usblib/device/usbdmsc.h" +#include "drivers/cfal96x64x16.h" +#include "usb_msc_structs.h" +#include "third_party/fatfs/src/diskio.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 microSD card for the storage +//! media for the mass storage device. The screen will display the current +//! action occurring on the device ranging from disconnected, no media, reading, +//! writing and idle. +// +//***************************************************************************** + +//***************************************************************************** +// +// These defines are used to define the screen constraints to the application. +// +//***************************************************************************** +#define DISPLAY_BANNER_HEIGHT 11 +#define DISPLAY_BANNER_BG ClrDarkBlue +#define DISPLAY_BANNER_FG ClrWhite + +//***************************************************************************** +// +// The number of ticks to wait before falling back to the idle state. Since +// the tick rate is 100Hz this is approximately 3 seconds. +// +//***************************************************************************** +#define USBMSC_ACTIVITY_TIMEOUT 300 + +//***************************************************************************** +// +// This enumeration holds the various states that the device can be in during +// normal operation. +// +//***************************************************************************** +volatile enum +{ + // + // Unconfigured. + // + MSC_DEV_DISCONNECTED, + + // + // Connected but not yet fully enumerated. + // + MSC_DEV_CONNECTED, + + // + // Connected and fully enumerated but not currently handling a command. + // + MSC_DEV_IDLE, + + // + // Currently reading the SD card. + // + MSC_DEV_READ, + + // + // Currently writing the SD card. + // + 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 sDMAControlTable[64]; +#elif defined(ccs) +#pragma DATA_ALIGN(sDMAControlTable, 1024) +tDMAControlTable sDMAControlTable[64]; +#else +tDMAControlTable sDMAControlTable[64] __attribute__ ((aligned(1024))); +#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, uint_fast32_t ui32Event, + uint_fast32_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, uint_fast32_t ui32Event, uint_fast32_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 bar. +// +//***************************************************************************** +void +UpdateStatus(char *pcString, bool bClrBackground) +{ + tRectangle sRect; + + // + // + // + GrContextBackgroundSet(&g_sContext, DISPLAY_BANNER_BG); + + if(bClrBackground) + { + // + // Fill the bottom rows of the screen with blue to create the status area. + // + sRect.i16XMin = 0; + sRect.i16YMin = GrContextDpyHeightGet(&g_sContext) - + DISPLAY_BANNER_HEIGHT; + sRect.i16XMax = GrContextDpyWidthGet(&g_sContext) - 1; + sRect.i16YMax = sRect.i16YMin + DISPLAY_BANNER_HEIGHT - 1; + + // + // Draw the background of the banner. + // + GrContextForegroundSet(&g_sContext, DISPLAY_BANNER_BG); + GrRectFill(&g_sContext, &sRect); + + // + // Put a white box around the banner. + // + GrContextForegroundSet(&g_sContext, DISPLAY_BANNER_FG); + GrRectDraw(&g_sContext, &sRect); + } + else + { + // + // Fill the bottom rows of the screen with blue to create the status area. + // + sRect.i16XMin = 1; + sRect.i16YMin = GrContextDpyHeightGet(&g_sContext) - + DISPLAY_BANNER_HEIGHT + 1; + sRect.i16XMax = GrContextDpyWidthGet(&g_sContext) - 2; + sRect.i16YMax = sRect.i16YMin + DISPLAY_BANNER_HEIGHT - 3; + + // + // Draw the background of the banner. + // + GrContextForegroundSet(&g_sContext, DISPLAY_BANNER_BG); + GrRectFill(&g_sContext, &sRect); + + // + // White text in the banner. + // + GrContextForegroundSet(&g_sContext, DISPLAY_BANNER_FG); + } + + // + // Write the current state to the left of the status area. + // + GrContextFontSet(&g_sContext, g_psFontFixed6x8); + + // + // Update the status on the screen. + // + if(pcString != 0) + { + GrStringDrawCentered(&g_sContext, pcString, + -1, GrContextDpyWidthGet(&g_sContext) / 2, + 58, 1); + } +} + +//***************************************************************************** +// +// 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. FatFs requires a timer tick +// every 10 ms for internal timing purposes. +// +//***************************************************************************** +void +SysTickHandler(void) +{ + // + // Call the FatFs tick timer. + // + disk_timerproc(); + + if(g_ui32IdleTimeout != 0) + { + g_ui32IdleTimeout--; + } +} + +//***************************************************************************** +// +// This is the main loop that runs the application. +// +//***************************************************************************** +int +main(void) +{ + tRectangle sRect; + uint_fast32_t ui32Retcode; + + // + // Set the system clock to run at 50MHz from the PLL. + // + ROM_SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | + SYSCTL_XTAL_16MHZ); + + // + // Configure SysTick for a 100Hz interrupt. The FatFs driver wants a 10 ms + // tick. + // + ROM_SysTickPeriodSet(ROM_SysCtlClockGet() / 100); + ROM_SysTickEnable(); + ROM_SysTickIntEnable(); + + // + // Configure and enable uDMA + // + ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UDMA); + SysCtlDelay(10); + ROM_uDMAControlBaseSet(&sDMAControlTable[0]); + ROM_uDMAEnable(); + + // + // Initialize the display driver. + // + CFAL96x64x16Init(); + + // + // Initialize the graphics context. + // + GrContextInit(&g_sContext, &g_sCFAL96x64x16); + + // + // Fill the top 15 rows of the screen with blue to create the banner. + // + sRect.i16XMin = 0; + sRect.i16YMin = 0; + sRect.i16XMax = GrContextDpyWidthGet(&g_sContext) - 1; + sRect.i16YMax = DISPLAY_BANNER_HEIGHT - 1; + GrContextForegroundSet(&g_sContext, ClrDarkBlue); + GrRectFill(&g_sContext, &sRect); + + // + // Put a white box around the banner. + // + GrContextForegroundSet(&g_sContext, ClrWhite); + GrRectDraw(&g_sContext, &sRect); + + // + // Put the application name in the middle of the banner. + // + GrContextFontSet(&g_sContext, g_psFontFixed6x8); + GrStringDrawCentered(&g_sContext, "usb-dev-msc", -1, + GrContextDpyWidthGet(&g_sContext) / 2, 5, 0); + + // + // 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", 1); + + // + // Enable the USB controller. + // + ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_USB0); + + // + // Set the USB pins to be controlled by the USB controller. + // + ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB); + ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOG); + ROM_GPIOPinConfigure(GPIO_PG4_USB0EPEN); + ROM_GPIOPinTypeUSBDigital(GPIO_PORTG_BASE, GPIO_PIN_4); + ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOL); + ROM_GPIOPinTypeUSBAnalog(GPIO_PORTL_BASE, GPIO_PIN_6 | GPIO_PIN_7); + ROM_GPIOPinTypeUSBAnalog(GPIO_PORTB_BASE, GPIO_PIN_0 | GPIO_PIN_1); + + // + // 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, &g_sMSCDevice); + + // + // Determine whether or not an SDCard is installed. If not, print a + // warning and have the user install one and restart. + // + ui32Retcode = disk_initialize(0); + + GrContextFontSet(&g_sContext, g_psFontFixed6x8); + if(ui32Retcode != RES_OK) + { + GrStringDrawCentered(&g_sContext, "No SDCard Found", -1, + GrContextDpyWidthGet(&g_sContext) / 2, 16, 0); + GrStringDrawCentered(&g_sContext, "Please insert", + -1, GrContextDpyWidthGet(&g_sContext) / 2, 26, 0); + GrStringDrawCentered(&g_sContext, "a card and", + -1, GrContextDpyWidthGet(&g_sContext) / 2, 36, 0); + GrStringDrawCentered(&g_sContext, "reset the board.", + -1, GrContextDpyWidthGet(&g_sContext) / 2, 46, 0); + } + else + { + GrStringDrawCentered(&g_sContext, "SDCard Found", -1, + GrContextDpyWidthGet(&g_sContext) / 2, 30, 0); + } + + // + // Drop into the main loop. + // + while(1) + { + switch(g_eMSCState) + { + case MSC_DEV_READ: + { + // + // Update the screen if necessary. + // + if(g_ui32Flags & FLAG_UPDATE_STATUS) + { + UpdateStatus("Reading", 0); + g_ui32Flags &= ~FLAG_UPDATE_STATUS; + } + + // + // If there is no activity then return to the idle state. + // + if(g_ui32IdleTimeout == 0) + { + UpdateStatus("Idle", 0); + g_eMSCState = MSC_DEV_IDLE; + } + + break; + } + case MSC_DEV_WRITE: + { + // + // Update the screen if necessary. + // + if(g_ui32Flags & FLAG_UPDATE_STATUS) + { + UpdateStatus("Writing", 0); + g_ui32Flags &= ~FLAG_UPDATE_STATUS; + } + + // + // If there is no activity then return to the idle state. + // + if(g_ui32IdleTimeout == 0) + { + UpdateStatus("Idle", 0); + g_eMSCState = MSC_DEV_IDLE; + } + break; + } + case MSC_DEV_DISCONNECTED: + { + // + // Update the screen if necessary. + // + if(g_ui32Flags & FLAG_UPDATE_STATUS) + { + UpdateStatus("Disconnected", 0); + g_ui32Flags &= ~FLAG_UPDATE_STATUS; + } + break; + } + case MSC_DEV_IDLE: + { + break; + } + default: + { + break; + } + } + } +} + +//***************************************************************************** +// +// The error routine that is called if the driver library encounters an error. +// +//***************************************************************************** +#ifdef DEBUG +void +__error__(char *pcFilename, uint32_t ui32Line) +{ + while(1) + { + // + // Hang on runtime error. + // + } +} +#endif + -- cgit v1.3.1