Diff: targets/TARGET_ONSEMI/TARGET_NCS36510/char_driver.h

Revision:

149:156823d33999

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/TARGET_ONSEMI/TARGET_NCS36510/char_driver.h	Fri Oct 28 11:17:30 2016 +0100
@@ -0,0 +1,85 @@
+/**
+ ******************************************************************************
+ * @file char_driver.h
+ * @brief Defines a character driver data type.
+ * @internal
+ * @author ON Semiconductor
+ * $Rev: 2607 $
+ * $Date: 2013-12-06 18:02:43 +0530 (Fri, 06 Dec 2013) $
+ ******************************************************************************
+ * Copyright 2016 Semiconductor Components Industries LLC (d/b/a “ON Semiconductor”).
+ * All rights reserved.  This software and/or documentation is licensed by ON Semiconductor
+ * under limited terms and conditions.  The terms and conditions pertaining to the software
+ * and/or documentation are available at http://www.onsemi.com/site/pdf/ONSEMI_T&C.pdf
+ * (“ON Semiconductor Standard Terms and Conditions of Sale, Section 8 Software”) and
+ * if applicable the software license agreement.  Do not use this software and/or
+ * documentation unless you have carefully read and you agree to the limited terms and
+ * conditions.  By using this software and/or documentation, you agree to the limited
+ * terms and conditions.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
+ * OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
+ * ON SEMICONDUCTOR SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL,
+ * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
+ * @endinternal
+ *
+ * @details
+ * The character driver is intended for devices that allow read and write
+ * operations with "streams" of data, such as UART devices, SPI or I2c, etc.
+ *
+ * The character driver derives from the generic driver template (see driver.h).
+ * It does so by including an element of the generic driver_t type.
+ *
+ * The driver defines blocking and non-blocking read and write operations. It is
+ * up to the driver implementation to decide which of these to actually implement.
+ *
+ * @ingroup char_drivers
+ */
+
+#ifndef CHAR_DRIVER_H_
+#define CHAR_DRIVER_H_
+
+#include "driver.h"
+
+#define DRV_NO_ERROR       (True)
+#define DRV_ERROR          (False)
+
+/** A character driver structure. */
+typedef struct char_driver {
+    /** The parent generic driver. */
+    driver_t driver;
+
+    /** Blocking read into a buffer.
+     * @param device The device to read from.
+     * @param buf The buffer to read into.
+     * @param len The number of bytes to read.
+     */
+    uint8_t (*read_b)(device_pt device, uint8_t *const buf, uint32_t len);
+
+    /** Non-blocking read into a buffer.
+     * @param device The device to read from.
+     * @param buf The buffer to read into.
+     * @param len The maximum number of bytes to read; typically the size of the buffer.
+     * @return The number of bytes actually read.
+     */
+    uint32_t (*read_nb)(device_pt device, uint8_t *const buf, uint32_t len);
+
+    /** Blocking write from a buffer.
+     * @param device The device to write to.
+     * @param buf The buffer to read from.
+     * @param len The number of bytes to write; typically the size of the buffer.
+     * @return success or error message
+     */
+    uint8_t (*write_b)(device_pt device, const uint8_t *buf, uint32_t len);
+
+    /** Non-blocking write from a buffer.
+     * @param device The device to write to.
+     * @param buf The buffer to read from.
+     * @param len The number of bytes to write; typically the size of the buffer.
+     * @return success or error message
+     */
+    uint8_t (*write_nb)(device_pt device, const uint8_t *buf, uint32_t len);
+} char_driver_t, *char_driver_pt;
+
+#endif /* CHAR_DRIVER_H_ */