From: Mateusz Moscicki <m.moscicki2@partner.samsung.com>
Date: Wed, 9 Jun 2021 09:23:25 +0000 (+0200)
Subject: test direct
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fheads%2Fsandbox%2Fmmoscicki2%2Fdirect;p=platform%2Fcore%2Fapi%2Fperipheral-io.git

test direct
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 43c0b29..8767b29 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,6 +29,7 @@ SET(INC_DIR include)
 INCLUDE_DIRECTORIES(${INC_DIR})
 INCLUDE_DIRECTORIES(${INC_DIR}/gdbus)
 INCLUDE_DIRECTORIES(${INC_DIR}/interface)
+INCLUDE_DIRECTORIES(${INC_DIR}/direct)
 
 SET(SRC_DIR src)
 INCLUDE_DIRECTORIES(${SRC_DIR}/gdbus)
@@ -60,6 +61,7 @@ SET(SOURCES src/peripheral_gpio.c
 			src/peripheral_adc.c
 			src/peripheral_uart.c
 			src/peripheral_spi.c
+			src/direct/peripheral_i2c_direct.c
 			src/interface/peripheral_interface_gpio.c
 			src/interface/peripheral_interface_i2c.c
 			src/interface/peripheral_interface_pwm.c
diff --git a/include/direct/peripheral_direct_common.h b/include/direct/peripheral_direct_common.h
new file mode 100644
index 0000000..b9459b8
--- /dev/null
+++ b/include/direct/peripheral_direct_common.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2016-2017 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __PERIPHERAL_DIRECT_COMMON_H__
+#define __PERIPHERAL_DIRECT_COMMON_H__
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <peripheral_io.h>
+
+#include "peripheral_log.h"
+
+#define MAX_ERR_LEN 255
+#define MAX_BUF_LEN 96
+
+#define IF_ERROR_RETURN(expr, func...) \
+	do { \
+		if (expr) { \
+			int temp = errno; \
+			func; \
+			if (temp == EAGAIN) \
+				return PERIPHERAL_ERROR_TRY_AGAIN; \
+			char errmsg[MAX_ERR_LEN]; \
+			strerror_r(temp, errmsg, sizeof(errmsg)); \
+			_E("Failed the %s(%d) function. errmsg: %s", __FUNCTION__, __LINE__, errmsg); \
+			return PERIPHERAL_ERROR_IO_ERROR; \
+		} \
+	} while (0)
+
+#endif /*__PERIPHERAL_DIRECT_COMMON_H__*/
diff --git a/include/direct/peripheral_direct_i2c.h b/include/direct/peripheral_direct_i2c.h
new file mode 100644
index 0000000..7887cea
--- /dev/null
+++ b/include/direct/peripheral_direct_i2c.h
@@ -0,0 +1 @@
+int peripheral_direct_i2c_open(int bus, int address, int *fd_out);
diff --git a/src/direct/peripheral_i2c_direct.c b/src/direct/peripheral_i2c_direct.c
new file mode 100644
index 0000000..f45a49d
--- /dev/null
+++ b/src/direct/peripheral_i2c_direct.c
@@ -0,0 +1,33 @@
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+
+#include "peripheral_io.h"
+#include "peripheral_log.h"
+#include "peripheral_interface_i2c.h"
+#include "peripheral_direct_common.h"
+
+
+int peripheral_direct_i2c_open(int bus, int address, int *fd_out)
+{
+	RETVM_IF(bus < 0, PERIPHERAL_ERROR_INVALID_PARAMETER, "Invalid i2c bus");
+	RETVM_IF(address < 0, PERIPHERAL_ERROR_INVALID_PARAMETER, "Invalid i2c address");
+	RETVM_IF(fd_out == NULL, PERIPHERAL_ERROR_INVALID_PARAMETER, "Invalid fd_out for i2c");
+
+	int ret;
+	int fd;
+	char path[MAX_BUF_LEN] = {0, };
+
+	snprintf(path, MAX_BUF_LEN, "/dev/i2c-%d", bus);
+	fd = open(path, O_RDWR);
+	IF_ERROR_RETURN(fd < 0);
+
+	ret = ioctl(fd, I2C_SLAVE, address);
+	IF_ERROR_RETURN(ret != 0, close(fd));
+
+	*fd_out = fd;
+
+	return PERIPHERAL_ERROR_NONE;
+}
diff --git a/src/peripheral_i2c.c b/src/peripheral_i2c.c
index 5f493f2..324f8bd 100644
--- a/src/peripheral_i2c.c
+++ b/src/peripheral_i2c.c
@@ -13,7 +13,6 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-
 #include <stdlib.h>
 #include <system_info.h>
 
@@ -21,6 +20,7 @@
 #include "peripheral_handle.h"
 #include "peripheral_gdbus_i2c.h"
 #include "peripheral_interface_i2c.h"
+#include "peripheral_direct_i2c.h"
 #include "peripheral_log.h"
 
 #define PERIPHERAL_IO_I2C_FEATURE "http://tizen.org/feature/peripheral_io.i2c"
@@ -71,7 +71,7 @@ int peripheral_i2c_open(int bus, int address, peripheral_i2c_h *i2c)
 		return PERIPHERAL_ERROR_OUT_OF_MEMORY;
 	}
 
-	ret = peripheral_gdbus_i2c_open(handle, bus, address);
+	ret = peripheral_direct_i2c_open(bus, address, &handle->fd);
 	if (ret != PERIPHERAL_ERROR_NONE) {
 		_E("Failed to open i2c communication, ret : %d", ret);
 		free(handle);
@@ -117,9 +117,9 @@ int peripheral_i2c_close(peripheral_i2c_h i2c)
 	RETVM_IF(__is_feature_supported() == false, PERIPHERAL_ERROR_NOT_SUPPORTED, "I2C feature is not supported");
 	RETVM_IF(i2c == NULL, PERIPHERAL_ERROR_INVALID_PARAMETER, "i2c handle is NULL");
 
-	ret = peripheral_gdbus_i2c_close(i2c);
-	if (ret != PERIPHERAL_ERROR_NONE)
-		_E("Failed to close i2c communcation, ret : %d", ret);
+	// ret = peripheral_gdbus_i2c_close(i2c);
+	// if (ret != PERIPHERAL_ERROR_NONE)
+	//         _E("Failed to close i2c communcation, ret : %d", ret);
 
 	peripheral_interface_i2c_close(i2c);