提交SMOD ATSC IMX APP版本 V122

2026-07-16 14:35:59 +08:00
commit 7601c270d5
485 changed files with 255032 additions and 0 deletions
@@ -0,0 +1,101 @@
+#if 1
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>  //define O_WRONLY and O_RDONLY
+
+#include <unistd.h>         /* System V */
+#include <sys/ioctl.h>      /* BSD and Linux */
+#include <stropts.h>        /* XSI STREAMS */
+
+#include "../inc/type.h"
+#include "../inc/igpio.h"
+#include "../inc/ii2c.h"
+//#include <i2c-dev.h>
+#include <linux/i2c-dev.h>
+
+#define __use_imx_i2c__     0
+#if __use_imx_i2c__
+int ii2c_com_init(const char*i2c_node_name,uint8 i2c_addr, int *pfd)
+{
+    int fd=-1;
+    int err;
+
+    fd = open(i2c_node_name, O_RDWR);
+    if(fd < 0)
+    {
+        log_printf(LOG_ERR,I_NOUSED,"i2c open %s err.\n",i2c_node_name);
+        return -1;
+    }
+
+	err = ioctl(fd, I2C_SLAVE, i2c_addr);
+	if (err < 0)
+	{
+	    log_printf(LOG_ERR,I_NOUSED,"can't set i2c dev slave addr.\n");
+        close(fd);
+        return -1;
+	}
+
+    *pfd = fd;
+}
+
+uint8 i2c_write(int fd, uint8 reg, uint8 val)
+{
+    int   retries;
+    uint8 wdata[2];
+    uint8 retLen = 0;
+
+    if(fd<0)
+        return -1;
+
+    wdata[0] = reg;
+    wdata[1] = val;
+
+    for (retries = 2; retries; retries--)
+    {
+        retLen = write(fd, wdata, 2);
+        if(retLen == 2)
+        {
+            return 0;
+        }
+
+        log_printf(LOG_DEBUG,I_NOUSED,"ret writeLen = %d\n",retLen);
+        usleep(1000 * 2);
+    }
+
+    return -1;
+}
+
+uint8 i2c_read(int fd, uint8 reg, uint8 *pval)
+{
+    int   retries;
+    uint8 retLen=0;
+
+    if(fd<0)
+        return -1;
+
+    for (retries = 2; retries; retries--)
+    {
+        retLen = write(fd, &reg, 1);
+
+        if(retLen == 1)
+        {
+            if (read(fd, pval, 1) == 1)
+            {
+                return 0;
+            }
+        }
+
+        log_printf(LOG_DEBUG,I_NOUSED,"ret writeLen = %d\n",retLen);
+        usleep(1000 * 2);
+    }
+
+    return -1;
+}
+#endif//__imx_i2c__
+
+
+#endif
+