From d18eda5f26b4e0dfbabc3b5abbdac4090ec94685 Mon Sep 17 00:00:00 2001 From: wgzAIIT <820906721@qq.com> Date: Thu, 5 May 2022 16:08:15 +0800 Subject: [PATCH] Register ch438 to character driver --- .../aiit_board/xidatong/src/ch438_demo.c | 36 +-- .../aiit_board/xidatong/src/imxrt_ch438.c | 228 +++++++++++++----- .../aiit_board/xidatong/src/imxrt_ch438.h | 7 +- 3 files changed, 198 insertions(+), 73 deletions(-) diff --git a/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/ch438_demo.c b/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/ch438_demo.c index 490f8ec30..f73be6e83 100644 --- a/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/ch438_demo.c +++ b/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/ch438_demo.c @@ -49,22 +49,30 @@ void CH438Demo(void) { + int fd1,fd2; + int i; + char buffer[256]; + int readlen; _info("ch438_main\n"); Ch438InitDefault(); - up_mdelay(1000); - while(1) + ch438_register("/dev/ext_uart3",2); + ch438_register("/dev/ext_uart2",1); + + fd1 = open("/dev/ext_uart3", O_RDWR); + write(fd1, "AT+BAUD=?",9); + readlen = read(fd1, buffer, 256); + + for(i=0;i - -#include -#include - +#include #include #include -#include - -#include "arm_arch.h" - -#include "imxrt_config.h" -#include "imxrt_irq.h" -#include "imxrt_gpio.h" - -#include "imxrt_ch438.h" -#include "xidatong.h" #include #include #include +#include + +#include +#include #include #include #include #include #include +#include + +#include +#include "arm_arch.h" + +#include "imxrt_config.h" +#include "imxrt_irq.h" +#include "imxrt_gpio.h" +#include "imxrt_ch438.h" +#include "xidatong.h" + #define CH438PORTNUM 8 #define BUFFERSIZE 128 +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ +static void ImxrtCH438Init(void); +static void CH438PortInit(uint8_t ext_uart_no, uint32_t baud_rate); +static void CH438SetOutput(void); +static void CH438SetInput(void); +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 uint8_t CH438UARTRcv(uint8_t ext_uart_no, char *buf); +static size_t ImxrtCh438ReadData(uint8_t ext_uart_no); +static void CH438UARTSend(uint8_t ext_uart_no, char *Data, uint8_t Num); + + +static int ch438_open(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_write(FAR struct file *filep, FAR const char *buffer, size_t buflen); + +/**************************************************************************** + * Private type + ****************************************************************************/ +struct ch438_dev_s +{ + uint8_t port; /* ch438 port number*/ +}; + /**************************************************************************** * Private Data ****************************************************************************/ -/* Semaphore for receiving data */ - static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; volatile int done[CH438PORTNUM] = {0}; -static uint8_t RevLen; -static uint8_t buff[CH438PORTNUM][BUFFERSIZE]; +static char buff[CH438PORTNUM][BUFFERSIZE]; 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 */ static uint8_t gInterruptStatus; - -/**************************************************************************** - * Private Function Prototypes - ****************************************************************************/ -static void ImxrtCH438Init(void); -static void CH438PortInit(uint8_t ext_uart_no,uint32_t baud_rate); -static void CH438SetOutput(void); -static void CH438SetInput(void); -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, uint8_t *mBuf); -static uint8_t CH438UARTRcv(uint8_t ext_uart_no, uint8_t* buf); - - -/**************************************************************************** - * Public and Private Functions - ****************************************************************************/ +static bool g_ch438open[CH438PORTNUM]; +static const struct file_operations g_ch438fops = +{ + ch438_open, + ch438_close, + ch438_read, + ch438_write, + NULL, + NULL, + NULL +}; /**************************************************************************** * Name: getInterruptStatus @@ -122,7 +143,7 @@ int getInterruptStatus(int argc, char **argv) * Configure pin mode to output * ****************************************************************************/ -void CH438SetOutput(void) +static void CH438SetOutput(void) { imxrt_config_gpio(CH438_D0_PIN_OUT); imxrt_config_gpio(CH438_D1_PIN_OUT); @@ -142,7 +163,7 @@ void CH438SetOutput(void) * Configure pin mode to input * ****************************************************************************/ -void CH438SetInput(void) +static void CH438SetInput(void) { imxrt_config_gpio(CH438_D0_PIN_INPUT); imxrt_config_gpio(CH438_D1_PIN_INPUT); @@ -180,7 +201,7 @@ static void ImxrtCH438Init(void) * ch438 port initialization * ****************************************************************************/ -static void CH438PortInit(uint8_t ext_uart_no,uint32_t baud_rate) +static void CH438PortInit(uint8_t ext_uart_no, uint32_t baud_rate) { uint32_t div; uint8_t DLL,DLM,dlab; @@ -333,7 +354,6 @@ static void WriteCH438Data(uint8_t addr, uint8_t dat) return; } - /**************************************************************************** * Name: WriteCH438Block * @@ -341,7 +361,7 @@ static void WriteCH438Data(uint8_t addr, uint8_t dat) * Write data block from ch438 address * ****************************************************************************/ -static void WriteCH438Block(uint8_t mAddr, uint8_t mLen, uint8_t *mBuf) +static void WriteCH438Block(uint8_t mAddr, uint8_t mLen, char *mBuf) { while (mLen--) WriteCH438Data(mAddr, *mBuf++); @@ -354,7 +374,7 @@ static void WriteCH438Block(uint8_t mAddr, uint8_t mLen, uint8_t *mBuf) * Disable FIFO mode for ch438 serial port to receive multi byte data * ****************************************************************************/ -uint8_t CH438UARTRcv(uint8_t ext_uart_no, uint8_t* buf) +uint8_t CH438UARTRcv(uint8_t ext_uart_no, char* buf) { uint8_t RcvNum = 0; uint8_t dat = 0; @@ -385,7 +405,7 @@ uint8_t CH438UARTRcv(uint8_t ext_uart_no, uint8_t* buf) * with a maximum of 128 bytes of data sent at a time * ****************************************************************************/ -void CH438UARTSend(uint8_t ext_uart_no, uint8_t *Data, uint8_t Num) +static void CH438UARTSend(uint8_t ext_uart_no, char *Data, uint8_t Num) { uint8_t REG_LSR_ADDR,REG_THR_ADDR; REG_LSR_ADDR = offsetadd[ext_uart_no] | REG_LSR0_ADDR; @@ -408,7 +428,6 @@ void CH438UARTSend(uint8_t ext_uart_no, uint8_t *Data, uint8_t Num) } } - /**************************************************************************** * Name: ImxrtCh438ReadData * @@ -416,9 +435,9 @@ void CH438UARTSend(uint8_t ext_uart_no, uint8_t *Data, uint8_t Num) * Read data from ch438 port * ****************************************************************************/ -void ImxrtCh438ReadData(uint8_t ext_uart_no) +static size_t ImxrtCh438ReadData(uint8_t ext_uart_no) { - int result, i; + size_t RevLen = 0; uint8_t InterruptStatus; uint8_t REG_IIR_ADDR; uint8_t REG_LSR_ADDR; @@ -435,7 +454,7 @@ void ImxrtCh438ReadData(uint8_t ext_uart_no) InterruptStatus = ReadCH438Data(REG_IIR_ADDR) & 0x0f; /* 读串口的中断状态 */ _info("InterruptStatus is %d\n", InterruptStatus); - switch( InterruptStatus ) + switch(InterruptStatus) { case INT_NOINT: /* 没有中断 */ break; @@ -444,15 +463,7 @@ void ImxrtCh438ReadData(uint8_t ext_uart_no) 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]); - for(i=0;if_inode; + FAR struct ch438_dev_s *priv = inode->i_private; + uint8_t port = priv->port; + DEBUGASSERT(port >= 0 && port < CH438PORTNUM); + + if (g_ch438open[port]) + { + return -EBUSY; + } + g_ch438open[port] = true; + + return OK; +} + +/**************************************************************************** + * Name: ch438_close + ****************************************************************************/ +static int ch438_close(FAR struct file *filep) +{ + FAR struct inode *inode = filep->f_inode; + FAR struct ch438_dev_s *priv = inode->i_private; + uint8_t port = priv->port; + DEBUGASSERT(port >= 0 && port < CH438PORTNUM); + + g_ch438open[port] = false; + return OK; +} + +/**************************************************************************** + * Name: ch438_read + ****************************************************************************/ +static ssize_t ch438_read(FAR struct file *filep, FAR char *buffer, size_t buflen) +{ + size_t length = 0; + FAR struct inode *inode = filep->f_inode; + FAR struct ch438_dev_s *priv = inode->i_private; + uint8_t port = priv->port; + DEBUGASSERT(port >= 0 && port < CH438PORTNUM); + + length = ImxrtCh438ReadData(port); + memcpy(buffer, buff[port], buflen); + + if (length > buflen) + { + length = buflen; + } + + return length; +} + +/**************************************************************************** + * Name: ch438_write + ****************************************************************************/ +static ssize_t ch438_write(FAR struct file *filep, FAR const char *buffer, size_t buflen) +{ + FAR struct inode *inode = filep->f_inode; + FAR struct ch438_dev_s *priv = inode->i_private; + uint8_t port = priv->port; + DEBUGASSERT(port >= 0 && port < CH438PORTNUM); + + CH438UARTSend(port, buffer, buflen); + + return buflen; +} + + +/**************************************************************************** + * Name: ch438_register + * + * Description: + * Register /dev/ext_uartN + * + ****************************************************************************/ +int ch438_register(FAR const char *devpath, uint8_t port) +{ + FAR struct ch438_dev_s *priv; + int ret = 0; + + /* port number check */ + DEBUGASSERT(port >= 0 && port < CH438PORTNUM); + + priv = (FAR struct ch438_dev_s *)kmm_malloc(sizeof(struct ch438_dev_s)); + if (priv == NULL) + { + return -ENOMEM; + } + + priv->port = port; + + /* Register the character driver */ + ret = register_driver(devpath, &g_ch438fops, 0666, priv); + if (ret < 0) + { + kmm_free(priv); + } + + return ret; } \ No newline at end of file diff --git a/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_ch438.h b/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_ch438.h index dbb6a41da..c2cbc4eec 100644 --- a/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_ch438.h +++ b/Ubiquitous/Nuttx_Fusion_XiUOS/aiit_board/xidatong/src/imxrt_ch438.h @@ -299,9 +299,10 @@ GPIO_PORT1 | GPIO_PIN29) - +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ int getInterruptStatus(int argc, char **argv); -void CH438UARTSend(uint8_t ext_uart_no,uint8_t *Data, uint8_t Num); -void ImxrtCh438ReadData(uint8_t ext_uart_no); void Ch438InitDefault(void); +int ch438_register(FAR const char *devpath,uint8_t port); #endif