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support e220 for xidatong on nuttx

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This commit is contained in:
wgzAIIT
2022-05-11 14:40:52 +08:00
parent 88ef0ad96c
commit 5873feb442
4 changed files with 222 additions and 55 deletions
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Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_ch438.c
+72 -52
View File
@@ -33,11 +33,11 @@ static uint8_t ReadCH438Data(uint8_t addr);
static void WriteCH438Data(uint8_t addr, uint8_t dat);
static void WriteCH438Block(uint8_t mAddr, uint8_t mLen, char *mBuf);
static void Ch438UartSend(uint8_t ext_uart_no, char *Data, uint16_t Num);
uint8_t CH438UARTRcv(uint8_t ext_uart_no, char* buf);
uint8_t CH438UARTRcv(uint8_t ext_uart_no, char *buf, size_t size);
static void ImxrtCH438Init(void);
static void CH438PortInit(uint8_t ext_uart_no, uint32_t baud_rate);
static int ImxrtCh438WriteData(uint8_t ext_uart_no, char *write_buffer, size_t size);
static size_t ImxrtCh438ReadData(uint8_t ext_uart_no);
static size_t ImxrtCh438ReadData(uint8_t ext_uart_no, size_t size);
static void Ch438InitDefault(void);
static int ch438_open(FAR struct file *filep);
@@ -52,7 +52,7 @@ static int ch438_register(FAR const char *devpath, uint8_t ext_uart_no);
****************************************************************************/
struct ch438_dev_s
{
sem_t devsem; /* ch438 port devsem */
sem_t devsem; /* ch438 port devsem */
uint8_t port; /* ch438 port number*/
};
@@ -60,6 +60,7 @@ struct ch438_dev_s
* Private Data
****************************************************************************/
/*mutex of corresponding port*/
static pthread_mutex_t mutex[CH438PORTNUM] =
{
PTHREAD_MUTEX_INITIALIZER,
@@ -71,6 +72,8 @@ static pthread_mutex_t mutex[CH438PORTNUM] =
PTHREAD_MUTEX_INITIALIZER,
PTHREAD_MUTEX_INITIALIZER
};
/* Condition variable of corresponding port */
static pthread_cond_t cond[CH438PORTNUM] =
{
PTHREAD_COND_INITIALIZER,
@@ -83,25 +86,35 @@ static pthread_cond_t cond[CH438PORTNUM] =
PTHREAD_COND_INITIALIZER
};
/* there is data available on the corresponding port */
static volatile bool done[CH438PORTNUM] = {false,false,false,false,false,false,false,false};
/* Eight port data buffer */
static char buff[CH438PORTNUM][CH438_BUFFSIZE];
static uint8_t buff_ptr[CH438PORTNUM];
static uint8_t Interruptnum[CH438PORTNUM] = {0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,}; /* SSR寄存器中断号对应值 */
static uint8_t offsetadd[CH438PORTNUM] = {0x00,0x10,0x20,0x30,0x08,0x18,0x28,0x38,}; /* 串口号的偏移地址 */
/* the value of interrupt number of SSR register */
static uint8_t Interruptnum[CH438PORTNUM] = {0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80,};
/* Offset address of serial port number */
static uint8_t offsetadd[CH438PORTNUM] = {0x00,0x10,0x20,0x30,0x08,0x18,0x28,0x38,};
/* Interrupt register status global variable */
static uint8_t gInterruptStatus;
/* port open status global variable */
static volatile bool g_ch438open[CH438PORTNUM] = {false,false,false,false,false,false,false,false};
/* Ch438 POSIX interface */
static const struct file_operations g_ch438fops =
{
ch438_open,
ch438_close,
ch438_read,
ch438_write,
NULL,
ch438_ioctl,
NULL
ch438_open,
ch438_close,
ch438_read,
ch438_write,
NULL,
ch438_ioctl,
NULL
};
/****************************************************************************
@@ -182,9 +195,9 @@ static void CH438SetInput(void)
static uint8_t ReadCH438Data(uint8_t addr)
{
uint8_t dat = 0;
imxrt_gpio_write(CH438_NWR_PIN, true);
imxrt_gpio_write(CH438_NRD_PIN, true);
imxrt_gpio_write(CH438_ALE_PIN, true);
imxrt_gpio_write(CH438_NWR_PIN, true);
imxrt_gpio_write(CH438_NRD_PIN, true);
imxrt_gpio_write(CH438_ALE_PIN, true);
CH438SetOutput();
up_udelay(1);
@@ -234,9 +247,9 @@ static uint8_t ReadCH438Data(uint8_t addr)
****************************************************************************/
static void WriteCH438Data(uint8_t addr, uint8_t dat)
{
imxrt_gpio_write(CH438_ALE_PIN, true);
imxrt_gpio_write(CH438_NRD_PIN, true);
imxrt_gpio_write(CH438_NWR_PIN, true);
imxrt_gpio_write(CH438_ALE_PIN, true);
imxrt_gpio_write(CH438_NRD_PIN, true);
imxrt_gpio_write(CH438_NWR_PIN, true);
CH438SetOutput();
up_udelay(1);
@@ -285,10 +298,10 @@ static void WriteCH438Data(uint8_t addr, uint8_t dat)
* Write data block from ch438 address
*
****************************************************************************/
static void WriteCH438Block(uint8_t mAddr, uint8_t mLen, char *mBuf)
static void WriteCH438Block(uint8_t mAddr, uint8_t mLen, char *mBuf)
{
while(mLen--)
WriteCH438Data(mAddr, *mBuf++);
while(mLen--)
WriteCH438Data(mAddr, *mBuf++);
}
/****************************************************************************
@@ -307,7 +320,7 @@ static void Ch438UartSend(uint8_t ext_uart_no, char *Data, uint16_t Num)
while(1)
{
while((ReadCH438Data(REG_LSR_ADDR) & BIT_LSR_TEMT) == 0); /* 等待数据发送完毕，THR,TSR全空 */
while((ReadCH438Data(REG_LSR_ADDR) & BIT_LSR_TEMT) == 0); /* wait for sending data done, THR and TSR is NULL */
if(Num <= 128)
{
WriteCH438Block(REG_THR_ADDR, Num, Data);
@@ -329,28 +342,38 @@ static void Ch438UartSend(uint8_t ext_uart_no, char *Data, uint16_t Num)
* Disable FIFO mode for ch438 serial port to receive multi byte data
*
****************************************************************************/
uint8_t CH438UARTRcv(uint8_t ext_uart_no, char* buf)
uint8_t CH438UARTRcv(uint8_t ext_uart_no, char *buf, size_t size)
{
uint8_t RcvNum = 0;
uint8_t rcv_num = 0;
uint8_t dat = 0;
uint8_t REG_LSR_ADDR,REG_RBR_ADDR;
char *read_buffer;
size_t buffer_index = 0;
read_buffer = buf;
REG_LSR_ADDR = offsetadd[ext_uart_no] | REG_LSR0_ADDR;
REG_RBR_ADDR = offsetadd[ext_uart_no] | REG_RBR0_ADDR;
/* Wait for the data to be ready */
while((ReadCH438Data(REG_LSR_ADDR) & BIT_LSR_DATARDY) == 0 );
while((ReadCH438Data(REG_LSR_ADDR) & BIT_LSR_DATARDY) == 0x01)
/* Wait for the data to be ready */
while ((ReadCH438Data(REG_LSR_ADDR) & BIT_LSR_DATARDY) == 0);
while (((ReadCH438Data(REG_LSR_ADDR) & BIT_LSR_DATARDY) == 0x01) && (size != 0))
{
dat = ReadCH438Data(REG_RBR_ADDR);
buff[ext_uart_no][buff_ptr[ext_uart_no]] = dat;
buff_ptr[ext_uart_no] = buff_ptr[ext_uart_no] + 1;
if(buff_ptr[ext_uart_no] == 256)
buff_ptr[ext_uart_no] = 0;
RcvNum = RcvNum + 1;
dat = ReadCH438Data(REG_RBR_ADDR);
*read_buffer = dat;
read_buffer++;
buffer_index++;
if (255 == buffer_index) {
buffer_index = 0;
read_buffer = buf;
}
++rcv_num;
--size;
}
return RcvNum;
return rcv_num;
}
/****************************************************************************
@@ -477,7 +500,7 @@ static int ImxrtCh438WriteData(uint8_t ext_uart_no, char *write_buffer, size_t s
Ch438UartSend(ext_uart_no, write_buffer, write_len);
}
return 0;
return OK;
}
/****************************************************************************
@@ -487,7 +510,7 @@ static int ImxrtCh438WriteData(uint8_t ext_uart_no, char *write_buffer, size_t s
* Read data from ch438 port
*
****************************************************************************/
static size_t ImxrtCh438ReadData(uint8_t ext_uart_no)
static size_t ImxrtCh438ReadData(uint8_t ext_uart_no, size_t size)
{
size_t RevLen = 0;
uint8_t InterruptStatus;
@@ -503,33 +526,30 @@ static size_t ImxrtCh438ReadData(uint8_t ext_uart_no)
REG_IIR_ADDR = offsetadd[ext_uart_no] | REG_IIR0_ADDR;
REG_LSR_ADDR = offsetadd[ext_uart_no] | REG_LSR0_ADDR;
REG_MSR_ADDR = offsetadd[ext_uart_no] | REG_MSR0_ADDR;
InterruptStatus = ReadCH438Data(REG_IIR_ADDR) & 0x0f; /* 读串口的中断状态 */
/* Read the interrupt status of the serial port */
InterruptStatus = ReadCH438Data(REG_IIR_ADDR) & 0x0f;
ch438info("InterruptStatus is %d\n", InterruptStatus);
switch(InterruptStatus)
{
case INT_NOINT: /* 没有中断 */
case INT_NOINT: /* no interrupt */
break;
case INT_THR_EMPTY: /* THR空中断 */
case INT_THR_EMPTY: /* the transmit hold register is not interrupted */
break;
case INT_RCV_OVERTIME: /* 接收超时中断，收到数据后一般是触发这个 。在收到一帧数据后4个数据时间没有后续的数据时触发*/
case INT_RCV_SUCCESS: /* 接收数据可用中断。这是一个数据帧超过缓存了才发生，否则一般是前面的超时中断。处理过程同上面的超时中断 */
RevLen = CH438UARTRcv(ext_uart_no, buff[ext_uart_no]);
buff_ptr[ext_uart_no] = 0;
case INT_RCV_OVERTIME: /* receive data timeout interrupt */
case INT_RCV_SUCCESS: /* receive data available interrupt */
RevLen = CH438UARTRcv(ext_uart_no, buff[ext_uart_no], size);
break;
case INT_RCV_LINES: /* 接收线路状态中断 */
case INT_RCV_LINES: /* receive line status interrupt */
ReadCH438Data(REG_LSR_ADDR);
break;
case INT_MODEM_CHANGE: /* MODEM输入变化中断 */
case INT_MODEM_CHANGE: /* modem input change interrupt */
ReadCH438Data(REG_MSR_ADDR);
break;
default:
break;
}
done[ext_uart_no] = false;
}
pthread_mutex_unlock(&mutex[ext_uart_no]);
@@ -663,7 +683,7 @@ static ssize_t ch438_read(FAR struct file *filep, FAR char *buffer, size_t bufle
DEBUGASSERT(port >= 0 && port < CH438PORTNUM);
length = ImxrtCh438ReadData(port);
length = ImxrtCh438ReadData(port, buflen);
memcpy(buffer, buff[port], length);
if(length > buflen)