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add ImxrtCh438WriteData for ch438 on nuttx

This commit is contained in:
wgzAIIT 2022-05-07 15:36:23 +08:00
parent 2b40ba4d1a
commit 64109b5120
2 changed files with 168 additions and 109 deletions
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274
Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_ch438.c
View File

@ -21,27 +21,30 @@
#include "imxrt_ch438.h" #include "imxrt_ch438.h"
#define CH438PORTNUM 8 #define CH438PORTNUM 8
#define BUFFERSIZE 128 #define CH438_BUFFSIZE 256
/**************************************************************************** /****************************************************************************
* Private Function Prototypes * Private Function Prototypes
****************************************************************************/ ****************************************************************************/
static void ImxrtCH438Init(void); static int getInterruptStatus(int argc, char **argv);
static void CH438PortInit(uint8_t ext_uart_no, uint32_t baud_rate);
static void CH438SetOutput(void); static void CH438SetOutput(void);
static void CH438SetInput(void); static void CH438SetInput(void);
static uint8_t ReadCH438Data(uint8_t addr); static uint8_t ReadCH438Data(uint8_t addr);
static void WriteCH438Data(uint8_t addr, uint8_t dat); static void WriteCH438Data(uint8_t addr, uint8_t dat);
static void WriteCH438Block(uint8_t mAddr, uint8_t mLen, char *mBuf); static void WriteCH438Block(uint8_t mAddr, uint8_t mLen, char *mBuf);
static uint8_t CH438UARTRcv(uint8_t ext_uart_no, char *buf); static void Ch438UartSend(uint8_t ext_uart_no, char *Data, uint16_t Num);
uint8_t CH438UARTRcv(uint8_t ext_uart_no, char* buf);
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);
static void CH438UARTSend(uint8_t ext_uart_no, char *Data, uint8_t Num); static void Ch438InitDefault(void);
static int ch438_open(FAR struct file *filep); static int ch438_open(FAR struct file *filep);
static int ch438_close(FAR struct file *filep); static int ch438_close(FAR struct file *filep);
static ssize_t ch438_read(FAR struct file *filep, FAR char *buffer, size_t buflen); static ssize_t ch438_read(FAR struct file *filep, FAR char *buffer, size_t buflen);
static ssize_t ch438_write(FAR struct file *filep, FAR const char *buffer, size_t buflen); static ssize_t ch438_write(FAR struct file *filep, FAR const char *buffer, size_t buflen);
static int ch438_register(FAR const char *devpath, uint8_t ext_uart_no);
/**************************************************************************** /****************************************************************************
* Private type * Private type
@ -80,7 +83,7 @@ static pthread_cond_t cond[CH438PORTNUM] =
volatile int done[CH438PORTNUM] = {0}; volatile int done[CH438PORTNUM] = {0};
static char buff[CH438PORTNUM][BUFFERSIZE]; static char buff[CH438PORTNUM][CH438_BUFFSIZE];
static uint8_t buff_ptr[CH438PORTNUM]; 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 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 */ static uint8_t offsetadd[CH438PORTNUM] = {0x00,0x10,0x20,0x30,0x08,0x18,0x28,0x38,}; /* 串口号的偏移地址 */
@ -106,7 +109,7 @@ static const struct file_operations g_ch438fops =
* thread task getInterruptStatus * thread task getInterruptStatus
* *
****************************************************************************/ ****************************************************************************/
int getInterruptStatus(int argc, char **argv) static int getInterruptStatus(int argc, char **argv)
{ {
uint8_t ext_uart_no = 0; uint8_t ext_uart_no = 0;
while(1) while(1)
@ -148,7 +151,6 @@ static void CH438SetOutput(void)
imxrt_config_gpio(CH438_D5_PIN_OUT); imxrt_config_gpio(CH438_D5_PIN_OUT);
imxrt_config_gpio(CH438_D6_PIN_OUT); imxrt_config_gpio(CH438_D6_PIN_OUT);
imxrt_config_gpio(CH438_D7_PIN_OUT); imxrt_config_gpio(CH438_D7_PIN_OUT);
} }
/**************************************************************************** /****************************************************************************
@ -170,73 +172,6 @@ static void CH438SetInput(void)
imxrt_config_gpio(CH438_D7_PIN_INPUT); imxrt_config_gpio(CH438_D7_PIN_INPUT);
} }
/****************************************************************************
* Name: ImxrtCH438Init
*
* Description:
* ch438 initialization
*
****************************************************************************/
static void ImxrtCH438Init(void)
{
CH438SetOutput();
imxrt_config_gpio(CH438_NWR_PIN);
imxrt_config_gpio(CH438_NRD_PIN);
imxrt_config_gpio(CH438_ALE_PIN);
imxrt_gpio_write(CH438_NWR_PIN,true);
imxrt_gpio_write(CH438_NRD_PIN,true);
imxrt_gpio_write(CH438_ALE_PIN,true);
}
/****************************************************************************
* Name: CH438PortInit
*
* Description:
* ch438 port initialization
*
****************************************************************************/
static void CH438PortInit(uint8_t ext_uart_no, uint32_t baud_rate)
{
uint32_t div;
uint8_t DLL,DLM,dlab;
uint8_t REG_LCR_ADDR;
uint8_t REG_DLL_ADDR;
uint8_t REG_DLM_ADDR;
uint8_t REG_IER_ADDR;
uint8_t REG_MCR_ADDR;
uint8_t REG_FCR_ADDR;
REG_LCR_ADDR = offsetadd[ext_uart_no] | REG_LCR0_ADDR;
REG_DLL_ADDR = offsetadd[ext_uart_no] | REG_DLL0_ADDR;
REG_DLM_ADDR = offsetadd[ext_uart_no] | REG_DLM0_ADDR;
REG_IER_ADDR = offsetadd[ext_uart_no] | REG_IER0_ADDR;
REG_MCR_ADDR = offsetadd[ext_uart_no] | REG_MCR0_ADDR;
REG_FCR_ADDR = offsetadd[ext_uart_no] | REG_FCR0_ADDR;
WriteCH438Data(REG_IER_ADDR, BIT_IER_RESET); /* 复位该串口 */
up_mdelay(50);
dlab = ReadCH438Data(REG_IER_ADDR);
dlab &= 0xDF;
WriteCH438Data(REG_IER_ADDR, dlab);
dlab = ReadCH438Data(REG_LCR_ADDR);
dlab |= 0x80; //置LCR寄存器DLAB位为1
WriteCH438Data(REG_LCR_ADDR, dlab);
div = ( Fpclk >> 4 ) / baud_rate;
DLM = div >> 8;
DLL = div & 0xff;
WriteCH438Data(REG_DLL_ADDR, DLL); /* 设置波特率 */
WriteCH438Data(REG_DLM_ADDR, DLM);
WriteCH438Data(REG_FCR_ADDR, BIT_FCR_RECVTG1 | BIT_FCR_RECVTG0 | BIT_FCR_FIFOEN); /* 设置FIFO模式，触发点为112字节 */
WriteCH438Data(REG_LCR_ADDR, BIT_LCR_WORDSZ1 | BIT_LCR_WORDSZ0 ); /* 字长8位，1位停止位、无校验 */
WriteCH438Data(REG_IER_ADDR, BIT_IER_IERECV); /* 使能中断 */
WriteCH438Data(REG_MCR_ADDR, BIT_MCR_OUT2);// | BIT_MCR_RTS | BIT_MCR_DTR ); /* 允许中断输出,DTR,RTS为1 */
WriteCH438Data(REG_FCR_ADDR, ReadCH438Data(REG_FCR_ADDR)| BIT_FCR_TFIFORST); /* 清空FIFO中的数据 */
}
/**************************************************************************** /****************************************************************************
* Name: ReadCH438Data * Name: ReadCH438Data
* *
@ -288,7 +223,6 @@ static uint8_t ReadCH438Data(uint8_t addr)
up_udelay(1); up_udelay(1);
return dat; return dat;
} }
/**************************************************************************** /****************************************************************************
@ -357,6 +291,37 @@ static void WriteCH438Block(uint8_t mAddr, uint8_t mLen, char *mBuf)
WriteCH438Data(mAddr, *mBuf++); WriteCH438Data(mAddr, *mBuf++);
} }
/****************************************************************************
* Name: CH438UARTSend
*
* Description:
* Enable FIFO mode, which is used for ch438 serial port to send multi byte data,
* with a maximum of 128 bytes of data sent at a time
*
****************************************************************************/
static void Ch438UartSend(uint8_t ext_uart_no, char *Data, uint16_t Num)
{
uint8_t REG_LSR_ADDR,REG_THR_ADDR;
REG_LSR_ADDR = offsetadd[ext_uart_no] | REG_LSR0_ADDR;
REG_THR_ADDR = offsetadd[ext_uart_no] | REG_THR0_ADDR;
while(1)
{
while((ReadCH438Data(REG_LSR_ADDR) & BIT_LSR_TEMT ) == 0); /* 等待数据发送完毕，THR,TSR全空 */
if(Num <= CH438_BUFFSIZE)
{
WriteCH438Block(REG_THR_ADDR, Num, Data);
break;
}
else
{
WriteCH438Block(REG_THR_ADDR, 128, Data);
Num -= CH438_BUFFSIZE;
Data += CH438_BUFFSIZE;
}
}
}
/**************************************************************************** /****************************************************************************
* Name: CH438UARTRcv * Name: CH438UARTRcv
* *
@ -373,14 +338,15 @@ uint8_t CH438UARTRcv(uint8_t ext_uart_no, char* buf)
REG_LSR_ADDR = offsetadd[ext_uart_no] | REG_LSR0_ADDR; REG_LSR_ADDR = offsetadd[ext_uart_no] | REG_LSR0_ADDR;
REG_RBR_ADDR = offsetadd[ext_uart_no] | REG_RBR0_ADDR; REG_RBR_ADDR = offsetadd[ext_uart_no] | REG_RBR0_ADDR;
while((ReadCH438Data(REG_LSR_ADDR) & BIT_LSR_DATARDY) == 0 ); /* 等待数据准备好 */ /* 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 ) while((ReadCH438Data(REG_LSR_ADDR) & BIT_LSR_DATARDY) == 0x01 )
{ {
dat = ReadCH438Data(REG_RBR_ADDR); dat = ReadCH438Data(REG_RBR_ADDR);
buff[ext_uart_no][buff_ptr[ext_uart_no]] = dat; buff[ext_uart_no][buff_ptr[ext_uart_no]] = dat;
buff_ptr[ext_uart_no] = buff_ptr[ext_uart_no] + 1; buff_ptr[ext_uart_no] = buff_ptr[ext_uart_no] + 1;
if (buff_ptr[ext_uart_no] == BUFFERSIZE) if (buff_ptr[ext_uart_no] == CH438_BUFFSIZE)
buff_ptr[ext_uart_no] = 0; buff_ptr[ext_uart_no] = 0;
RcvNum = RcvNum + 1; RcvNum = RcvNum + 1;
} }
@ -388,34 +354,130 @@ uint8_t CH438UARTRcv(uint8_t ext_uart_no, char* buf)
} }
/**************************************************************************** /****************************************************************************
* Name: CH438UARTSend * Name: ImxrtCH438Init
* *
* Description: * Description:
* Enable FIFO mode, which is used for ch438 serial port to send multi byte data, * ch438 initialization
* with a maximum of 128 bytes of data sent at a time
* *
****************************************************************************/ ****************************************************************************/
static void CH438UARTSend(uint8_t ext_uart_no, char *Data, uint8_t Num) static void ImxrtCH438Init(void)
{ {
uint8_t REG_LSR_ADDR,REG_THR_ADDR; CH438SetOutput();
REG_LSR_ADDR = offsetadd[ext_uart_no] | REG_LSR0_ADDR; imxrt_config_gpio(CH438_NWR_PIN);
REG_THR_ADDR = offsetadd[ext_uart_no] | REG_THR0_ADDR; imxrt_config_gpio(CH438_NRD_PIN);
imxrt_config_gpio(CH438_ALE_PIN);
while(1) imxrt_gpio_write(CH438_NWR_PIN,true);
{ imxrt_gpio_write(CH438_NRD_PIN,true);
while((ReadCH438Data(REG_LSR_ADDR) & BIT_LSR_TEMT ) == 0); /* 等待数据发送完毕，THR,TSR全空 */ imxrt_gpio_write(CH438_ALE_PIN,true);
if(Num <= BUFFERSIZE) }
{
WriteCH438Block(REG_THR_ADDR, Num, Data); /****************************************************************************
break; * Name: CH438PortInit
} *
else * Description:
{ * ch438 port initialization
WriteCH438Block(REG_THR_ADDR, BUFFERSIZE, Data); *
Num -= BUFFERSIZE; ****************************************************************************/
Data += BUFFERSIZE; static void CH438PortInit(uint8_t ext_uart_no, uint32_t baud_rate)
} {
} uint32_t div;
uint8_t DLL,DLM,dlab;
uint8_t REG_LCR_ADDR;
uint8_t REG_DLL_ADDR;
uint8_t REG_DLM_ADDR;
uint8_t REG_IER_ADDR;
uint8_t REG_MCR_ADDR;
uint8_t REG_FCR_ADDR;
REG_LCR_ADDR = offsetadd[ext_uart_no] | REG_LCR0_ADDR;
REG_DLL_ADDR = offsetadd[ext_uart_no] | REG_DLL0_ADDR;
REG_DLM_ADDR = offsetadd[ext_uart_no] | REG_DLM0_ADDR;
REG_IER_ADDR = offsetadd[ext_uart_no] | REG_IER0_ADDR;
REG_MCR_ADDR = offsetadd[ext_uart_no] | REG_MCR0_ADDR;
REG_FCR_ADDR = offsetadd[ext_uart_no] | REG_FCR0_ADDR;
/* reset the uart */
WriteCH438Data(REG_IER_ADDR, BIT_IER_RESET);
up_mdelay(50);
dlab = ReadCH438Data(REG_IER_ADDR);
dlab &= 0xDF;
WriteCH438Data(REG_IER_ADDR, dlab);
/* set LCR register DLAB bit 1 */
dlab = ReadCH438Data(REG_LCR_ADDR);
dlab |= 0x80;
WriteCH438Data(REG_LCR_ADDR, dlab);
div = ( Fpclk >> 4 ) / baud_rate;
DLM = div >> 8;
DLL = div & 0xff;
/* set bps */
WriteCH438Data(REG_DLL_ADDR, DLL);
WriteCH438Data(REG_DLM_ADDR, DLM);
/* set FIFO mode, 112 bytes */
WriteCH438Data(REG_FCR_ADDR, BIT_FCR_RECVTG1 | BIT_FCR_RECVTG0 | BIT_FCR_FIFOEN);
/* 8 bit word size, 1 bit stop bit, no crc */
WriteCH438Data(REG_LCR_ADDR, BIT_LCR_WORDSZ1 | BIT_LCR_WORDSZ0);
/* enable interrupt */
WriteCH438Data(REG_IER_ADDR, BIT_IER_IERECV);
/* allow interrupt output, DTR and RTS is 1 */
WriteCH438Data(REG_MCR_ADDR, BIT_MCR_OUT2);
/* release the data in FIFO */
WriteCH438Data(REG_FCR_ADDR, ReadCH438Data(REG_FCR_ADDR)| BIT_FCR_TFIFORST);
}
/****************************************************************************
* Name: ImxrtCh438ReadData
*
* Description:
* Read data from ch438 port
*
****************************************************************************/
static int ImxrtCh438WriteData(uint8_t ext_uart_no, char *write_buffer, size_t size)
{
int write_len, write_len_continue;
int i, write_index;
DEBUGASSERT(write_buffer != NULL);
write_len = size;;
write_len_continue = size;
if (write_len > CH438_BUFFSIZE)
{
if (0 == write_len % CH438_BUFFSIZE)
{
write_index = write_len / CH438_BUFFSIZE;
for (i = 0; i < write_index; i ++)
{
Ch438UartSend(ext_uart_no, write_buffer + i * CH438_BUFFSIZE, CH438_BUFFSIZE);
}
}
else
{
write_index = 0;
while (write_len_continue > CH438_BUFFSIZE)
{
Ch438UartSend(ext_uart_no, write_buffer + write_index * CH438_BUFFSIZE, CH438_BUFFSIZE);
write_index++;
write_len_continue = write_len - write_index * CH438_BUFFSIZE;
}
Ch438UartSend(ext_uart_no, write_buffer + write_index * CH438_BUFFSIZE, write_len_continue);
}
}
else
{
Ch438UartSend(ext_uart_no, write_buffer, write_len);
}
return 0;
} }
/**************************************************************************** /****************************************************************************
@ -478,7 +540,7 @@ static size_t ImxrtCh438ReadData(uint8_t ext_uart_no)
* Ch438 default initialization function * Ch438 default initialization function
* *
****************************************************************************/ ****************************************************************************/
void Ch438InitDefault(void) static void Ch438InitDefault(void)
{ {
int ret, i; int ret, i;
@ -566,7 +628,7 @@ static ssize_t ch438_read(FAR struct file *filep, FAR char *buffer, size_t bufle
DEBUGASSERT(port >= 0 && port < CH438PORTNUM); DEBUGASSERT(port >= 0 && port < CH438PORTNUM);
length = ImxrtCh438ReadData(port); length = ImxrtCh438ReadData(port);
memcpy(buffer, buff[port], buflen); memcpy(buffer, buff[port], length);
if (length > buflen) if (length > buflen)
{ {
@ -586,7 +648,7 @@ static ssize_t ch438_write(FAR struct file *filep, FAR const char *buffer, size_
uint8_t port = priv->port; uint8_t port = priv->port;
DEBUGASSERT(port >= 0 && port < CH438PORTNUM); DEBUGASSERT(port >= 0 && port < CH438PORTNUM);
CH438UARTSend(port, buffer, buflen); ImxrtCh438WriteData(port, buffer, buflen);
return buflen; return buflen;
} }
@ -599,7 +661,7 @@ static ssize_t ch438_write(FAR struct file *filep, FAR const char *buffer, size_
* Register /dev/ext_uartN * Register /dev/ext_uartN
* *
****************************************************************************/ ****************************************************************************/
int ch438_register(FAR const char *devpath, uint8_t port) static int ch438_register(FAR const char *devpath, uint8_t port)
{ {
FAR struct ch438_dev_s *priv; FAR struct ch438_dev_s *priv;
int ret = 0; int ret = 0;

3
Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_ch438.h
View File

@ -356,9 +356,6 @@
* Public Function Prototypes * Public Function Prototypes
****************************************************************************/ ****************************************************************************/
#ifdef CONFIG_BSP_USING_CH438 #ifdef CONFIG_BSP_USING_CH438
int getInterruptStatus(int argc, char **argv);
void Ch438InitDefault(void);
int ch438_register(FAR const char *devpath,uint8_t port);
int board_ch438_initialize(void); int board_ch438_initialize(void);
#endif #endif