diff options
| author | Yuval Adam <yuv.adm@gmail.com> | 2014-06-29 12:34:32 +0300 |
|---|---|---|
| committer | Yuval Adam <yuv.adm@gmail.com> | 2014-06-29 12:34:32 +0300 |
| commit | c3e4c9a25c2910d2d66d52215b3406b13d5b23d5 (patch) | |
| tree | added370d1e356901f8579f076e3263fb0464db7 /boards/dk-tm4c129x/usb_otg_mouse/usb_otg_mouse.c | |
| parent | 990090a4cc9070837d31e66b58d40f0c3d038741 (diff) | |
Add more board models
Diffstat (limited to 'boards/dk-tm4c129x/usb_otg_mouse/usb_otg_mouse.c')
| -rw-r--r-- | boards/dk-tm4c129x/usb_otg_mouse/usb_otg_mouse.c | 322 |
1 files changed, 322 insertions, 0 deletions
diff --git a/boards/dk-tm4c129x/usb_otg_mouse/usb_otg_mouse.c b/boards/dk-tm4c129x/usb_otg_mouse/usb_otg_mouse.c new file mode 100644 index 0000000..50bebd9 --- /dev/null +++ b/boards/dk-tm4c129x/usb_otg_mouse/usb_otg_mouse.c @@ -0,0 +1,322 @@ +//*****************************************************************************
+//
+// usb_otg_mouse.c - USB OTG Mouse (combined host and device mouse).
+//
+// 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 <stdbool.h>
+#include <stdint.h>
+#include "inc/hw_memmap.h"
+#include "inc/hw_types.h"
+#include "inc/hw_usb.h"
+#include "driverlib/rom.h"
+#include "driverlib/rom_map.h"
+#include "driverlib/sysctl.h"
+#include "grlib/grlib.h"
+#include "usblib/usblib.h"
+#include "usblib/device/usbdevice.h"
+#include "usblib/host/usbhost.h"
+#include "utils/uartstdio.h"
+#include "drivers/frame.h"
+#include "drivers/kentec320x240x16_ssd2119.h"
+#include "drivers/pinout.h"
+#include "usb_otg_mouse.h"
+
+//*****************************************************************************
+//
+//! \addtogroup example_list
+//! <h1>USB OTG HID Mouse Example (usb_otg_mouse)</h1>
+//!
+//! This example application demonstrates the use of USB On-The-Go (OTG) to
+//! offer both USB host and device operation. When the DK board is connected
+//! to a USB host, it acts as a BIOS-compatible USB mouse. The select button
+//! on the board (on the bottom right corner) acts as mouse button 1 and
+//! the mouse pointer may be moved by dragging your finger or a stylus across
+//! the touchscreen in the desired direction.
+//!
+//! If a USB mouse is connected to the USB OTG port, the board operates as a
+//! USB host and draws dots on the display to track the mouse movement. The
+//! states of up to three mouse buttons are shown at the bottom right of the
+//! display.
+//!
+//*****************************************************************************
+
+//*****************************************************************************
+//
+// The current state of the USB in the system based on the detected mode.
+//
+//*****************************************************************************
+volatile tUSBMode g_iCurrentMode = eUSBModeNone;
+
+//*****************************************************************************
+//
+// The size of the host controller's memory pool in bytes.
+//
+//*****************************************************************************
+#define HCD_MEMORY_SIZE 128
+
+//*****************************************************************************
+//
+// The memory pool to provide to the Host controller driver.
+//
+//*****************************************************************************
+uint8_t g_pui8HCDPool[HCD_MEMORY_SIZE];
+
+//*****************************************************************************
+//
+// This global is used to indicate to the main that a mode change has
+// occurred.
+//
+//*****************************************************************************
+uint32_t g_ui32NewState;
+
+//*****************************************************************************
+//
+// The system clock frequency in Hz.
+//
+//*****************************************************************************
+uint32_t g_ui32SysClock;
+
+//*****************************************************************************
+//
+// The graphics context for the screen.
+//
+//*****************************************************************************
+tContext g_sContext;
+
+//*****************************************************************************
+//
+// A function which returns the number of milliseconds since it was last
+// called. This can be found in usb_dev_mouse.c.
+//
+//*****************************************************************************
+extern uint32_t GetTickms(void);
+
+//*****************************************************************************
+//
+// The error routine that is called if the driver library encounters an error.
+//
+//*****************************************************************************
+#ifdef DEBUG
+void
+__error__(char *pcFilename, uint32_t ui32Line)
+{
+}
+#endif
+
+//*****************************************************************************
+//
+// Callback function for mode changes.
+//
+//*****************************************************************************
+void
+ModeCallback(uint32_t ui32Index, tUSBMode iMode)
+{
+ //
+ // Save the new mode.
+ //
+ g_iCurrentMode = iMode;
+
+ switch(iMode)
+ {
+ case eUSBModeHost:
+ {
+ break;
+ }
+ case eUSBModeDevice:
+ {
+ break;
+ }
+ case eUSBModeNone:
+ {
+ break;
+ }
+ default:
+ {
+ break;
+ }
+ }
+ g_ui32NewState = 1;
+}
+
+//*****************************************************************************
+//
+// Initialize the USB for OTG mode on the platform.
+//
+//*****************************************************************************
+void
+USBOTGInit(uint32_t ui32ClockRate, tUSBModeCallback pfnModeCallback)
+{
+ uint32_t ui32PLLRate;
+
+ //
+ // Enable USB controller.
+ //
+ ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_USB0);
+
+ //
+ // Set the current processor speed to provide more accurate timing
+ // information to the USB library.
+ //
+ ui32PLLRate = 480000000;
+ USBOTGFeatureSet(0, USBLIB_FEATURE_CPUCLK, &ui32ClockRate);
+ USBOTGFeatureSet(0, USBLIB_FEATURE_USBPLL, &ui32PLLRate);
+
+ //
+ // Initialize the USB OTG mode and pass in a mode callback.
+ //
+ USBStackModeSet(0, eUSBModeOTG, pfnModeCallback);
+}
+
+//*****************************************************************************
+//
+// main routine.
+//
+//*****************************************************************************
+int
+main(void)
+{
+ tLPMFeature sLPMFeature;
+
+ //
+ // 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();
+
+ //
+ // Configure the UART.
+ //
+ UARTStdioConfig(0, 115200, g_ui32SysClock);
+
+ //
+ // 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-otg-mouse");
+
+ //
+ // Configure USB for OTG operation.
+ //
+ USBOTGInit(g_ui32SysClock, ModeCallback);
+
+ sLPMFeature.ui32HIRD = 500;
+ sLPMFeature.ui32Features = USBLIB_FEATURE_LPM_EN |
+ USBLIB_FEATURE_LPM_RMT_WAKE;
+ USBHCDFeatureSet(0, USBLIB_FEATURE_LPM, &sLPMFeature);
+
+ //
+ // Initialize the host stack.
+ //
+ HostInit();
+
+ //
+ // Initialize the device stack.
+ //
+ DeviceInit();
+
+ //
+ // Initialize the USB controller for dual mode operation with a 2ms polling
+ // rate.
+ //
+ USBOTGModeInit(0, 2000, g_pui8HCDPool, HCD_MEMORY_SIZE);
+
+ //
+ // Set the new state so that the screen updates on the first
+ // pass.
+ //
+ g_ui32NewState = 1;
+
+ //
+ // Loop forever.
+ //
+ while(1)
+ {
+ //
+ // Tell the OTG library code how much time has passed in milliseconds
+ // since the last call.
+ //
+ USBOTGMain(GetTickms());
+
+ //
+ // Handle deferred state change.
+ //
+ if(g_ui32NewState)
+ {
+ g_ui32NewState =0;
+
+ //
+ // Update the status area of the screen.
+ //
+ ClearMainWindow();
+
+ //
+ // Update the status bar with the new mode.
+ //
+ switch(g_iCurrentMode)
+ {
+ case eUSBModeHost:
+ {
+ UpdateStatus("Host Mode", 0, true);
+ break;
+ }
+ case eUSBModeDevice:
+ {
+ UpdateStatus("Device Mode", 0, true);
+ break;
+ }
+ case eUSBModeNone:
+ {
+ UpdateStatus("Idle Mode\n", 0, true);
+ break;
+ }
+ default:
+ {
+ break;
+ }
+ }
+ }
+
+ if(g_iCurrentMode == eUSBModeDevice)
+ {
+ DeviceMain();
+ }
+ else if(g_iCurrentMode == eUSBModeHost)
+ {
+ HostMain();
+ }
+ }
+}
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