#include "RS232.h"

#include "gpio.h"
#include "1gprs.h"
#include "string.h"
#include "devicegpioinit.h"

unsigned char UTR_rec_buff[RX232_LENGTH];
unsigned char UTR_rec_cnt = 0;
unsigned char UTR_rec_finish_flag = 0;

/*GPRS´®¿Ú³õʼ»¯*/
void GPRS_Usart_Init(uint32 system_BaudRate) // ´®¿Ú1  DMAͨµÀ3
{

  UART_SInitTypeDef UART_para; // UART³õʼ»¯½á¹¹Ìå
  CMU_ClocksType CMU_Clocks;   // ϵͳ¸÷ʱÖÓƵÂʽṹÌå  ÔÚ´ËÓë¼ÆË㲨ÌØÂÊÓйØ

  //	/*UART IO ÅäÖÃ*/
  CMU_PERCLK_SetableEx(PADCLK, ENABLE);                                          // PADʱÖÓ£¨GPIO£©Ê¹Äܺ¯Êý
  AltFunIO(GPRSRS232_TXD_EN_PIN_GROUP, GPRSRS232_TXD_EN_PIN_NUM, ALTFUN_NORMAL); // PE4 UART1 TX
  AltFunIO(GPRSRS232_RXD_EN_PIN_GROUP, GPRSRS232_RXD_EN_PIN_NUM, ALTFUN_NORMAL); // PE3 UART1 RX
  //----------------------------------------------------------------------------------------

  // UART¹¤×÷ʱÖÓÔ´Ñ¡Ôñ   Ö»ÓÐUART0¡¢1ÐèҪѡÔñ  ÆäËûUART¶Ë¿ÚÔݲ»ÐèÒª  Ö±½Ó×¢Êͼ´¿É
  UART_para.ClockSrc = CMU_OPCCR1_UART1CKS_APBCLK; // UART0¹¤×÷ʱÖÓÑ¡Ôñ
  UART_para.BaudRate = system_BaudRate;
  UART_para.DataBit = Eight8Bit; // Êý¾ÝλÊý
  UART_para.ParityBit = NONE;    // ÆæżУÑé
  UART_para.StopBit = OneBit;    // ֹͣλ

  CMU_GetClocksFreq(&CMU_Clocks);             // »ñȡϵͳ¸÷ʱÖÓƵÂÊ
  UART_SInit(UART1, &UART_para, &CMU_Clocks); // ³õʼ»¯uart

  /*NVICÖжÏÓÅÏȼ¶ÒÔ¼°ÊÇ·ñ´ò¿ªÖжÏÅäÖÃ*/
  NVIC_DisableIRQ(UART1_IRQn);
  //	NVIC_SetPriority(UART1_IRQn,2);//ÖжÏÓÅÏȼ¶ÅäÖÃ
  //	NVIC_EnableIRQ(UART1_IRQn);		//ÖжϷþÎñº¯Êý¿ª

  UARTx_CSR_RXEN_Setable(UART1, ENABLE); // ´ò¿ª½ÓÊÕʹÄÜ
  UARTx_CSR_TXEN_Setable(UART1, ENABLE); // ´ò¿ª·¢ËÍʹÄÜ

  UARTx_ISR_RXBF_Clr(UART1);

  ////--------DMAͨµÀ3ÅäÖÃ----------------------------------------------------------------
  DMA_InitTypeDef DMA_InitStructure; // DMA³õʼ»¯²ÎÊý½á¹¹Ìå

  CMU_PERCLK_SetableEx(DMACLK, ENABLE); // DMAʱÖÓʹÄÜ
  DMA_GCR_DMAEN_Setable(ENABLE);        // DMA×ÜʹÄÜ

  DMA_InitStructure.CHx = DMA_CH3;                        // DMAͨµÀºÅÉèÖÃ
  DMA_InitStructure.CHxPRI = DMA_CHxCR_CHxPRI_HIGH;       // ͨµÀÓÅÏȼ¶ÉèÖÃ
  DMA_InitStructure.CHxINC = DMA_CHxCR_CHxINC_INCREASE;   // ͨµÀµØÖ·Ôö³¤·½Ïò
  DMA_InitStructure.CHxSSEL = DMA_CHxCR_CH3SSEL_UART1_RX; // ÍâÉèͨµÀÑ¡Ôñ
  DMA_InitStructure.CHxDIR = DMA_CHxCR_DIR_TO_RAM;        // Êý¾Ý´«Êä·½ÏòÉèÖÃ
  DMA_InitStructure.CHxTSIZE = LINKRXDBOUND;              // ͨµÀ´«Ê䳤¶È
  DMA_InitStructure.CHxRAMAD = (uint32)LinkDlg.UartBuff;  // Ä¿±êµØÖ·
  DMA_InitStructure.CHxBDW = DMA_CHxCR_BDW_8BITS;         // ͨµÀ´«Êä´ø¿í

  DMA_InitStructure.CHxFTIE = DISABLE; // ͨµÀ´«ÊäÍê³ÉÖжÏʹÄÜ
  DMA_InitStructure.CHxHTIE = DISABLE; // ͨµÀ´«Êä°ë³ÌÖÕ¶ËʹÄÜ
  DMA_InitStructure.CHxEN = ENABLE;    // ͨµÀʹÄÜ

  NVIC_DisableIRQ(DMA_IRQn);
  //	NVIC_SetPriority(DMA_IRQn,3);//ÖжÏÓÅÏȼ¶ÅäÖÃ
  //	NVIC_EnableIRQ(DMA_IRQn);

  //	DMA_CHxCR_CHxFTIE_Setable(MODBUS_DMA_RX_CHANNEL,ENABLE);//ͨµÀ´«ÊäÍê³ÉÖжÏʹÄÜ

  DMA_ISR_DMACHFT_Clr(DMA_CH3); // ÇåDMA´«ÊäÍê³É±êÖ¾

  DMA_Init(&DMA_InitStructure); // DMAÅäÖòÎÊýдÈë
}

/*ÉÏλ»ú´®¿Ú³õʼ»¯*/
void UTR_Uart_Init(uint32 system_BaudRate) // ´®¿Ú5  DMAͨµÀ5
{
  UART_SInitTypeDef UART_para; // UART³õʼ»¯½á¹¹Ìå
  CMU_ClocksType CMU_Clocks;   // ϵͳ¸÷ʱÖÓƵÂʽṹÌå  ÔÚ´ËÓë¼ÆË㲨ÌØÂÊÓйØ

  //	/*UART5 IO ÅäÖÃ*/
  CMU_PERCLK_SetableEx(PADCLK, ENABLE); // PADʱÖÓ£¨GPIO£©Ê¹Äܺ¯Êý
  AltFunIO(URXD_EN_PIN_GROUP, URXD_EN_PIN_NUM, ALTFUN_NORMAL);
  AltFunIO(UTXD_EN_PIN_GROUP, UTXD_EN_PIN_NUM, ALTFUN_NORMAL);
  ////-----------------------------------------------------------------------------

  // UART¹¤×÷ʱÖÓÔ´Ñ¡Ôñ   Ö»ÓÐUART0¡¢1ÐèҪѡÔñ  ÆäËûUART¶Ë¿ÚÔݲ»ÐèÒª  Ö±½Ó×¢Êͼ´¿É
  //	UART_para.ClockSrc = CMU_OPCCR1_UART1CKS_APBCLK;		//UART0¹¤×÷ʱÖÓÑ¡Ôñ
  UART_para.BaudRate = system_BaudRate;
  UART_para.DataBit = Eight8Bit; // Êý¾ÝλÊý
  UART_para.ParityBit = NONE;    // ÆæżУÑé
  UART_para.StopBit = OneBit;    // ֹͣλ

  CMU_GetClocksFreq(&CMU_Clocks);             // »ñȡϵͳ¸÷ʱÖÓƵÂÊ
  UART_SInit(UART5, &UART_para, &CMU_Clocks); // ³õʼ»¯uart

  //	UARTx_IER_RXBF_IE_Setable(UART5, ENABLE);//½ÓÊÕ»º´æÂúÖжÏʹÄÜ ÐèҪʹÓýÓÊÕÖжϴò¿ª´Ë´¦ÉèÖÃ
  //	UARTx_IER_TXSE_IE_Setable(UART5, ENABLE)£»//·¢ËÍ»º´æ¿ÕÇÒ·¢ËÍÒÆλ¼Ä´æÆ÷¿ÕÖжÏʹÄÜ ÐèҪʹÓ÷¢ËÍÖжϴò¿ª´Ë´¦ÉèÖÃ

  /*NVICÖжÏÓÅÏȼ¶ÒÔ¼°ÊÇ·ñ´ò¿ªÖжÏÅäÖÃ*/
  NVIC_DisableIRQ(UART5_IRQn);
  //	NVIC_SetPriority(UART5_IRQn,2);//ÖжÏÓÅÏȼ¶ÅäÖÃ
  //	NVIC_EnableIRQ(UART5_IRQn);		//ÖжϷþÎñº¯Êý¿ª

  UARTx_CSR_RXEN_Setable(UART5, ENABLE); // ´ò¿ª½ÓÊÕʹÄÜ
  UARTx_CSR_TXEN_Setable(UART5, ENABLE); // ´ò¿ª·¢ËÍʹÄÜ

  UARTx_ISR_RXBF_Clr(UART5);

  //--------DMAͨµÀ5ÅäÖÃ----------------------------------------------------------------
  DMA_InitTypeDef DMA_InitStructure; // DMA³õʼ»¯²ÎÊý½á¹¹Ìå

  CMU_PERCLK_SetableEx(DMACLK, ENABLE); // DMAʱÖÓʹÄÜ
  DMA_GCR_DMAEN_Setable(ENABLE);        // DMA×ÜʹÄÜ

  DMA_InitStructure.CHx = DMA_CH5;                        // DMAͨµÀºÅÉèÖÃ
  DMA_InitStructure.CHxPRI = DMA_CHxCR_CHxPRI_HIGH;       // ͨµÀÓÅÏȼ¶ÉèÖÃ
  DMA_InitStructure.CHxINC = DMA_CHxCR_CHxINC_INCREASE;   // ͨµÀµØÖ·Ôö³¤·½Ïò
  DMA_InitStructure.CHxSSEL = DMA_CHxCR_CH5SSEL_UART5_RX; // ÍâÉèͨµÀÑ¡Ôñ
  DMA_InitStructure.CHxDIR = DMA_CHxCR_DIR_TO_RAM;        // Êý¾Ý´«Êä·½ÏòÉèÖÃ
  DMA_InitStructure.CHxTSIZE = LINKRXDBOUND;              // ͨµÀ´«Ê䳤¶È
  DMA_InitStructure.CHxRAMAD = (u32)(UTR_rec_buff);       // Ä¿±êµØÖ·
  DMA_InitStructure.CHxBDW = DMA_CHxCR_BDW_8BITS;         // ͨµÀ´«Êä´ø¿í

  DMA_InitStructure.CHxFTIE = DISABLE; // ͨµÀ´«ÊäÍê³ÉÖжÏʹÄÜ
  DMA_InitStructure.CHxHTIE = DISABLE; // ͨµÀ´«Êä°ë³ÌÖÕ¶ËʹÄÜ

  DMA_InitStructure.CHxEN = ENABLE; // ͨµÀʹÄÜ

  NVIC_DisableIRQ(DMA_IRQn);
  //	NVIC_SetPriority(DMA_IRQn,3);//ÖжÏÓÅÏȼ¶ÅäÖÃ
  //	NVIC_EnableIRQ(DMA_IRQn);

  //	DMA_CHxCR_CHxFTIE_Setable(UART5,ENABLE);//ͨµÀ´«ÊäÍê³ÉÖжÏʹÄÜ

  DMA_ISR_DMACHFT_Clr(DMA_CH5);

  DMA_Init(&DMA_InitStructure); // DMAÅäÖòÎÊýдÈë

  UTRXD_RE_L;
}

//---------GPRS--------------------------------------------------------------------
void gprsuart_sendbyte(uint8_t Byte)
{
  UARTx_TXBUF_Write(UART1, Byte); // ½«·¢ËÍÊý¾ÝдÈë·¢ËͼĴæÆ÷
  while (RESET == UARTx_ISR_TXSE_Chk(UART1))
    ; // µÈ´ý·¢ËÍÍê³É
}

void GPRS_UartSendCode(char *code)
{
  unsigned char len;
  unsigned char i;

  len = strlen(code); // ¼ÆËãµ÷ÊÔÐÅÏ¢µÄ³¤¶È
  for (i = 0; i < len; i++)
  {
    gprsuart_sendbyte(*code);
    code++;
  }

  delay_ms(1);
}

//---------ÉÏλ»ú--------------------------------------------------------------------
void UTR_sendbyte(unsigned char dat)
{

  UTRXD_RE_H;

  UARTx_TXBUF_Write(UART5, dat); // ½«·¢ËÍÊý¾ÝдÈë·¢ËͼĴæÆ÷
  while (RESET == UARTx_ISR_TXSE_Chk(UART5))
    ; // µÈ´ý·¢ËÍÍê³É

  UTRXD_RE_L;
}

void UTR_Send_Data(uint8 *buf, uint16 len)
{
  uint16 t;
  UTRXD_RE_H;
  for (t = 0; t < len; t++) // send data
  {
    UARTx_TXBUF_Write(UART5, buf[t]); // ½«·¢ËÍÊý¾ÝдÈë·¢ËͼĴæÆ÷
    while (RESET == UARTx_ISR_TXSE_Chk(UART5))
      ; // µÈ´ý·¢ËÍÍê³É
  }

  while (RESET == UARTx_ISR_TXSE_Chk(UART5))
    ; // µÈ´ý·¢ËÍÍê³É

  UTRXD_RE_L;
}

void UTR_DMA_Send_Data(uint8 *buf, uint16 len)
{
  while (DMA_ISR_DMACHFT_Chk(DMA_CH5) == RESET)
  {
  };
  DMA_ISR_DMACHFT_Clr(DMA_CH5); // ÇåDMA´«ÊäÍê³É±êÖ¾
  UARTx_ISR_TXSE_Clr(UART5);    // Çå·¢ËÍ¿ÕÇÒÒÆλ¼Ä´æÆ÷¿Õ±êÖ¾
  // µÈ´ý·¢ËÍÍê³É
  while (UARTx_ISR_TXSE_Chk(UART5) == RESET)
  {
  };
  UARTx_ISR_TXSE_Clr(UART5); // Çå·¢ËÍ¿ÕÇÒÒÆλ¼Ä´æÆ÷¿Õ±êÖ¾

  // ·¢ËÍÍêʧÄÜDMA
  DMA_CHxCR_ChxEN_Setable(DMA_CH5, DISABLE); // ͨµÀ1ʧÄÜ
}

//-----------------------------------------------------------------------------------------

// printf()Öض¨Ïò
// int fputc(int c, FILE * stream)
//{
//		UTRXD_RE_H;

//	UARTx_TXBUF_Write(UART5, c);		//½«·¢ËÍÊý¾ÝдÈë·¢ËͼĴæÆ÷
//	while(RESET == UARTx_ISR_TXSE_Chk(UART5))//µÈ´ý·¢ËÍÍê³É
//	{

//	}

// return c;

//		UTRXD_RE_L;
//}

//======================================================================================
// ´®¿Ú·¢Ë͵÷ÊÔÐÅÏ¢   RS485·¢Ë͵÷ÊÔÐÅÏ¢
void UartDebugFun(char *str)
{
  unsigned char len;
  len = strlen(str); // ¼ÆËãµ÷ÊÔÐÅÏ¢µÄ³¤¶È
  UTR_Send_Data((u8 *)str, len);
  delay_ms(1);
}

///*--------------------------------ÖжϷþÎñº¯Êý--------------------------------------------------*/
uint8_t RX_dat;
uint8_t RX_flag;
void UART1_IRQHandler(void)
{

  // ½ÓÊÕÖжϴ¦Àí
  if ((ENABLE == UARTx_IER_RXBF_IE_Getable(UART1)) && (SET == UARTx_ISR_RXBF_Chk(UART1)))
  {
    DMA_ISR_DMACHFT_Clr(DMA_CH3);

    DMA_CHxCR_ChxEN_Setable(DMA_CH3, DISABLE); // ͨµÀʧÄÜ

    DMA_CHxMAR_Write(DMA_CH3, (uint32)LinkDlg.UartBuff);

    DMA_CHxCR_ChxEN_Setable(DMA_CH3, ENABLE); // ͨµÀʹÄÜ
  }
}

void UART5_IRQHandler(void)
{

  // ½ÓÊÕÖжϴ¦Àí
  if ((ENABLE == UARTx_IER_RXBF_IE_Getable(UART5)) && (SET == UARTx_ISR_RXBF_Chk(UART5)))
  {

    DMA_ISR_DMACHFT_Clr(DMA_CH5);

    DMA_CHxCR_ChxEN_Setable(DMA_CH5, DISABLE); // ͨµÀʧÄÜ

    DMA_CHxMAR_Write(DMA_CH5, (u32)(UTR_rec_buff));

    DMA_CHxCR_ChxEN_Setable(DMA_CH5, ENABLE); // ͨµÀʹÄÜ
  }
}

void DMA_IRQHandler(void)
{
  if ((ENABLE == DMA_CHxCR_CHxFTIE_Getable(DMA_CH3)) && (SET == DMA_ISR_DMACHFT_Chk(DMA_CH3)))
  {
    // ÖжÏת·¢½ÓÊÕµ½µÄÊý¾Ý
    DMA_ISR_DMACHFT_Clr(DMA_CH3);
  }
}

///*--------------------------------DMA½ÓÊÕÅжϺ¯Êý--------------------------------------------------*/
/*Ô¶´«DMA½ÓÊպ˲é*/
ErrorStatus_STM32 Gprs_Uart1_Rx_DMA_CH3_Check(void)
{
  uint16_t timeout_cnt = 0;
  uint16_t dma_recv_cnt;
  uint32_t dma_mar_reg_read;

  dma_mar_reg_read = DMA_CHxMAR_Read(DMA_CH3);

  if (dma_mar_reg_read != (uint32)LinkDlg.UartBuff)
  {
    delay_ms(2);
    while (dma_mar_reg_read != DMA_CHxMAR_Read(DMA_CH3))
    {
      dma_mar_reg_read = DMA_CHxMAR_Read(DMA_CH3);
      delay_ms(2);
      if (timeout_cnt++ > 100)
        break;
    }
  }
  else
    return ERROR_1;

  dma_recv_cnt = dma_mar_reg_read - (uint32)LinkDlg.UartBuff;
  if (dma_recv_cnt)
  {
    LinkDlg.DataLen = dma_recv_cnt;
    // ½ÓÊÕRAMµØÖ·ÖØÔØ
    DMA_ISR_DMACHFT_Clr(DMA_CH3);
    DMA_CHxCR_ChxEN_Setable(DMA_CH3, DISABLE); // ͨµÀʧÄÜ

    DMA_CHxMAR_Write(DMA_CH3, (uint32)LinkDlg.UartBuff);

    DMA_CHxCR_ChxEN_Setable(DMA_CH3, ENABLE); // ͨµÀʹÄÜ

    LinkDlg.Gprs_Finish_Flag = SET; // ½ÓÊÕÍê³É
    return SUCCESS_0;
    //		DMA_GCR_DMAEN_Setable(DISABLE);//DMA×ÜʹÄÜ
  }
  return ERROR_1;
}