Support various uart device name

- ttyS  : hot fix for rp3
- ttyAMA: console on AMBA serial.
- ttySAC: console on Samsung SoC serial.

Change-Id: Iec73e23898e55230bbc8a1f0c71046d6f1d9f89d
Signed-off-by: jino.cho <jino.cho@samsung.com>

diff --git a/src/interface/uart.c b/src/interface/uart.c
index 2468c02..f070b8b 100644 (file)
--- a/src/interface/uart.c
+++ b/src/interface/uart.c
@@ -27,13 +27,21 @@
 #include "uart.h"
 #include "peripheral_common.h"
 
-#define SYSFS_UART_PATH                "/dev/ttySAC"
-
 #define PATH_BUF_MAX           64
 #define UART_BUF_MAX           16
 
 #define UART_BAUDRATE_SIZE     19
 
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
+#endif
+
+char *sysfs_uart_path[] = {
+       "/dev/ttyS",
+       "/dev/ttyAMA",
+       "/dev/ttySAC",
+};
+
 static const int peripheral_uart_br[UART_BAUDRATE_SIZE] = {
        B0,                     B50,            B75,            B110,           B134,
        B150,           B200,           B300,           B600,           B1200,
@@ -45,14 +53,19 @@ static const int byteinfo[4] = {CS5, CS6, CS7, CS8};
 
 int uart_open(int port, int *file_hndl)
 {
-       int fd;
-       char fName[PATH_BUF_MAX] = {0};
+       int i, fd;
+       char uart_dev[PATH_BUF_MAX] = {0};
 
        _D("port : %d", port);
 
-       snprintf(fName, PATH_BUF_MAX, SYSFS_UART_PATH "%d", port);
-       if ((fd = open(fName, O_RDWR | O_NOCTTY | O_NONBLOCK)) < 0) {
-               _E("Error[%d]: can't open %s, %s--[%d]\n", errno, fName, __FUNCTION__, __LINE__);
+       for (i = 0; i < ARRAY_SIZE(sysfs_uart_path); i++) {
+               snprintf(uart_dev, PATH_BUF_MAX, "%s%d", sysfs_uart_path[i], port);
+               if (access(uart_dev, F_OK) == 0)
+                       break;
+       }
+
+       if ((fd = open(uart_dev, O_RDWR | O_NOCTTY | O_NONBLOCK)) < 0) {
+               _E("Error[%d]: can't open %s, %s--[%d]\n", errno, uart_dev, __FUNCTION__, __LINE__);
                return -ENXIO;
        }
        *file_hndl = fd;