mirror of
https://github.com/RT-Thread/rt-thread.git
synced 2025-01-15 06:59:22 +08:00
ea6d73f140
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
85 lines
3.0 KiB
C
85 lines
3.0 KiB
C
/***************************************************************************//**
|
|
* @file drv_usart.h
|
|
* @brief USART 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
|
|
* 2010-12-22 onelife Initial creation for EFM32
|
|
* 2011-06-27 onelife Fix a bug when using compiler optimization
|
|
* 2011-07-26 onelife Add lock (semaphore) to prevent simultaneously
|
|
* access
|
|
* 2011-12-09 onelife Add giant gecko support
|
|
* 2011-12-09 onelife Add UART module support
|
|
* 2011-12-20 onelife Change USART status format
|
|
******************************************************************************/
|
|
#ifndef __DRV_USART_H__
|
|
#define __DRV_USART_H__
|
|
|
|
/* Includes ------------------------------------------------------------------*/
|
|
/* Exported types ------------------------------------------------------------*/
|
|
struct efm32_usart_int_mode_t
|
|
{
|
|
rt_uint8_t *data_ptr;
|
|
rt_uint8_t data_size;
|
|
rt_uint32_t read_index, save_index;
|
|
};
|
|
|
|
struct efm32_usart_dma_mode_t
|
|
{
|
|
/* DMA Channel */
|
|
rt_uint32_t dma_channel;
|
|
|
|
/* buffer info */
|
|
rt_uint32_t *data_ptr;
|
|
rt_uint8_t data_size;
|
|
};
|
|
|
|
struct efm32_usart_device_t
|
|
{
|
|
/* Counter */
|
|
rt_uint32_t counter;
|
|
/* Lock */
|
|
struct rt_semaphore *lock;
|
|
/* Unit number */
|
|
rt_uint8_t unit;
|
|
/* State */
|
|
volatile rt_uint8_t state;
|
|
/* Pointer to USART device structure */
|
|
USART_TypeDef *usart_device;
|
|
/* Pointer to RX structure */
|
|
void *rx_mode;
|
|
/* Pointer to TX structure */
|
|
void *tx_mode;
|
|
};
|
|
|
|
/* Exported constants --------------------------------------------------------*/
|
|
/* Exported macro ------------------------------------------------------------*/
|
|
#define USART_WAIT_TIME_TX (RT_TICK_PER_SECOND / 100 * 3)
|
|
|
|
#define USART_STATE_CONSOLE (1 << 0)
|
|
#define USART_STATE_TX_BUSY (1 << 1)
|
|
#define USART_STATE_RX_BUSY (1 << 2)
|
|
#if defined(UART_PRESENT)
|
|
#define USART_STATE_ASYNC_ONLY (1 << 3)
|
|
#endif
|
|
#define USART_STATE_SYNC (1 << 4)
|
|
#define USART_STATE_MASTER (1 << 5)
|
|
#define USART_STATE_AUTOCS (1 << 6)
|
|
#define USART_STATE_9BIT (1 << 7)
|
|
#define USART_CLK_MODE_GET(state) ((state >> 8) & 0x03)
|
|
|
|
#define SYNC_SETTING_MASK (0x1F)
|
|
#define SYNC_SETTING_SHIFT (5)
|
|
|
|
/* Exported functions ------------------------------------------------------- */
|
|
void rt_hw_usart_init(void);
|
|
|
|
#endif /* __DRV_USART_H__ */
|