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rt-thread/bsp/efm32/dev_keys.c
onelife.real ea6d73f140 *** EFM32 branch *** 
1. Upgrade Cortex driver library (CMSIS -> CMSIS & Device): version 2.3.2 -> 3.0.1 & 3.0.0
 - Remove "bsp/efm32/Libraries/CMSIS/Lib/ARM", "bsp/efm32/Libraries/CMSIS/Lib/G++" and "bsp/efm32/Libraries/CMSIS/SVD" to save space
2. Upgrade EFM32 driver libraries (efm32lib -> emlib): version 2.3.2 -> 3.0.0
 - Remove "bsp/efm32/Libraries/Device/EnergyMicro/EFM32LG" and "bsp/efm32/Libraries/Device/EnergyMicro/EFM32TG" to save space
3. Upgrade EFM32GG_DK3750 development kit driver library: version 1.2.2 -> 2.0.1
4. Upgrade EFM32_Gxxx_DK development kit driver library: version 1.7.3 -> 2.0.1
5. Add energy management unit driver and test code
6. Modify linker script and related code to compatible with new version of libraries
7. Change EFM32 branch version number to 1.0
8. Add photo frame demo application

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2122 bbd45198-f89e-11dd-88c7-29a3b14d5316
2012-05-18 04:40:40 +00:00

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/***************************************************************************//**
* @file dev_keys.c
* @brief Keys driver of RT-Thread RTOS for EFM32
* COPYRIGHT (C) 2012, RT-Thread Development Team
* @author onelife
* @version 1.0
*******************************************************************************
* @section License
* The license and distribution terms for this file may be found in the file
* LICENSE in this distribution or at http://www.rt-thread.org/license/LICENSE
*******************************************************************************
* @section Change Logs
* Date Author Notes
* 2011-12-29 onelife Initial creation for EFM32GG_DK3750 board
******************************************************************************/
/***************************************************************************//**
* @addtogroup EFM32GG_DK3750
* @{
******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "board.h"
#include "hdl_interrupt.h"
#include "dev_keys.h"
#if defined(EFM32_USING_KEYS)
#if defined(RT_USING_RTGUI)
#include <rtgui/event.h>
#endif
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
#ifdef EFM32_KEYS_DEBUG
#define keys_debug(format,args...) rt_kprintf(format, ##args)
#else
#define keys_debug(format,args...)
#endif
/* Private function prototypes -----------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
static struct efm32_joy_device joy;
static struct rt_device joy_dev;
static struct rtgui_event_mouse mouse;
static rt_bool_t click;
/* Private functions ---------------------------------------------------------*/
/***************************************************************************//**
* @brief
* Keys interrupt handler
*
* @details
*
* @note
*
* @param[in] device
* Pointer to device descriptor
******************************************************************************/
static void efm32_keys_isr(rt_device_t dev)
{
rt_uint16_t flag, joystick;
/* Clear DEK interrupt */
flag = DVK_getInterruptFlags();
DVK_clearInterruptFlags(flag);
if (flag & BC_INTFLAG_PB)
{
}
if (flag & BC_INTFLAG_DIP)
{
}
if (flag & BC_INTFLAG_JOYSTICK)
{
joystick = DVK_getJoystick();
keys_debug("Keys: joystick %x\n", joystick);
#ifdef RT_USING_RTGUI
switch (joystick)
{
case BC_UIF_JOYSTICK_RIGHT:
joy.x += 2;
if (joy.x > joy.max_x)
{
joy.x = joy.max_x;
}
break;
case BC_UIF_JOYSTICK_LEFT:
joy.x -= 2;
if (joy.x < joy.min_x)
{
joy.x = joy.min_x;
}
break;
case BC_UIF_JOYSTICK_DOWN:
joy.y += 2;
if (joy.y > joy.max_y)
{
joy.y = joy.max_y;
}
break;
case BC_UIF_JOYSTICK_UP:
joy.y -= 2;
if (joy.y < joy.min_y)
{
joy.y = joy.min_y;
}
break;
case BC_UIF_JOYSTICK_CENTER:
break;
default:
break;
}
#endif
if (joystick)
{
if (joystick != BC_UIF_JOYSTICK_CENTER)
{
mouse.parent.type = RTGUI_EVENT_MOUSE_MOTION;
mouse.x = joy.x;
mouse.y = joy.y;
rtgui_server_post_event((&mouse.parent), sizeof(mouse));
rt_timer_start(&joy.timer);
}
else
{
click = RT_TRUE;
mouse.parent.type = RTGUI_EVENT_MOUSE_BUTTON;
mouse.button = RTGUI_MOUSE_BUTTON_LEFT | RTGUI_MOUSE_BUTTON_DOWN;
rtgui_server_post_event((&mouse.parent), sizeof(mouse));
}
}
else
{
if (click)
{
click = RT_FALSE;
mouse.parent.type = RTGUI_EVENT_MOUSE_BUTTON;
mouse.button = RTGUI_MOUSE_BUTTON_LEFT | RTGUI_MOUSE_BUTTON_UP;
rtgui_server_post_event((&mouse.parent), sizeof(mouse));
}
else
{
rt_timer_stop(&joy.timer);
}
}
}
if (flag & BC_INTFLAG_AEM)
{
}
}
/***************************************************************************//**
* @brief
* Keys timeout handler
*
* @details
*
* @note
*
* @param[in] param
* Parameter
******************************************************************************/
static void efm32_keys_timer_isr(void *param)
{
rt_uint16_t joystick;
joystick = DVK_getJoystick();
#ifdef RT_USING_RTGUI
switch (joystick)
{
case BC_UIF_JOYSTICK_RIGHT:
joy.x += 2;
if (joy.x > joy.max_x)
{
joy.x = joy.max_x;
}
break;
case BC_UIF_JOYSTICK_LEFT:
joy.x -= 2;
if (joy.x < joy.min_x)
{
joy.x = joy.min_x;
}
break;
case BC_UIF_JOYSTICK_DOWN:
joy.y += 2;
if (joy.y > joy.max_y)
{
joy.y = joy.max_y;
}
break;
case BC_UIF_JOYSTICK_UP:
joy.y -= 2;
if (joy.y < joy.min_y)
{
joy.y = joy.min_y;
}
break;
}
if (joystick)
{
mouse.parent.type = RTGUI_EVENT_MOUSE_MOTION;
mouse.x = joy.x;
mouse.y = joy.y;
rtgui_server_post_event((&mouse.parent), sizeof(mouse));
}
#endif
}
/***************************************************************************//**
* @brief
* Initialize keys device
*
* @details
*
* @note
*
* @param[in] dev
* Pointer to device descriptor
*
* @return
* Error code
******************************************************************************/
static rt_err_t efm32_keys_init (rt_device_t dev)
{
struct rt_device_graphic_info lcd_info;
rt_device_t lcd;
lcd = rt_device_find(LCD_DEVICE_NAME);
if (lcd == RT_NULL)
{
keys_debug("Keys err: Can't find LCD\n");
return -RT_ERROR;
}
lcd->control(lcd, RTGRAPHIC_CTRL_GET_INFO, (void *)&lcd_info);
click = RT_FALSE;
joy.x = 0;
joy.y = 0;
joy.min_x = 0;
joy.max_x = lcd_info.width;
joy.min_y = 0;
joy.max_y = lcd_info.height;
mouse.parent.sender = RT_NULL;
mouse.wid = RT_NULL;
mouse.button = 0;
return RT_EOK;
}
/***************************************************************************//**
* @brief
* Initialize keys related hardware and register joystic device to kernel
*
* @details
*
* @note
*
******************************************************************************/
void efm32_hw_keys_init(void)
{
/* Configure joystick interrupt pin */
GPIO_PinModeSet(KEYS_INT_PORT, KEYS_INT_PIN, gpioModeInputPullFilter, 1);
/* Enable joystick interrupt */
GPIO_IntConfig(KEYS_INT_PORT, KEYS_INT_PIN, true, true, true);
efm32_irq_hook_init_t hook;
hook.type = efm32_irq_type_gpio;
hook.unit = KEYS_INT_PIN;
hook.cbFunc = efm32_keys_isr;
hook.userPtr = RT_NULL;
efm32_irq_hook_register(&hook);
if ((rt_uint8_t)KEYS_INT_PIN % 2)
{
NVIC_ClearPendingIRQ(GPIO_ODD_IRQn);
NVIC_SetPriority(GPIO_ODD_IRQn, EFM32_IRQ_PRI_DEFAULT);
NVIC_EnableIRQ(GPIO_ODD_IRQn);
}
else
{
NVIC_ClearPendingIRQ(GPIO_EVEN_IRQn);
NVIC_SetPriority(GPIO_EVEN_IRQn, EFM32_IRQ_PRI_DEFAULT);
NVIC_EnableIRQ(GPIO_EVEN_IRQn);
}
/* Enable DVK joystick interrupt */
DVK_enableInterrupt(BC_INTEN_JOYSTICK);
rt_timer_init(&joy.timer,
"joy_tmr",
efm32_keys_timer_isr,
RT_NULL,
KEYS_POLL_TIME,
RT_TIMER_FLAG_PERIODIC);
joy_dev.init = efm32_keys_init;
joy_dev.open = RT_NULL;
joy_dev.close = RT_NULL;
joy_dev.read = RT_NULL;
joy_dev.write = RT_NULL;
joy_dev.control = RT_NULL;
joy_dev.user_data = (void *)&joy;
/* register joy stick device */
rt_device_register(&joy_dev, "joy", RT_DEVICE_FLAG_RDWR);
keys_debug("Keys: H/W init OK!\n");
}
#endif /* defined(EFM32_USING_KEYS) */
/***************************************************************************//**
* @}
******************************************************************************/
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