From: jino.cho <jino.cho@samsung.com>
Date: Fri, 7 Jul 2017 02:54:46 +0000 (+0900)
Subject: Support various uart device name
X-Git-Tag: submit/tizen/20170713.044725~5
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=58ee9949f82ac836a9920a37892cd51e9b0aafa0;p=platform%2Fcore%2Fsystem%2Fperipheral-bus.git

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
--- 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;