gpio: use appropriate return values for cmd handler

[karo-tx-uboot.git] / include / cbfs.h

diff --git a/include/cbfs.h b/include/cbfs.h
index 6ea3f351196118a8b96d8e280cdbfe6d13d76771..f50280107b001d0699e1f4d33bdf5a777338a16a 100644 (file)
--- a/include/cbfs.h
+++ b/include/cbfs.h
@@ -1,23 +1,7 @@
 /*
  * Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #ifndef __CBFS_H
@@ -77,46 +61,47 @@ struct cbfs_cachenode {
 
 extern enum cbfs_result file_cbfs_result;
 
-/*
- * Return a string describing the most recent error condition.
+/**
+ * file_cbfs_error() - Return a string describing the most recent error
+ * condition.
  *
  * @return A pointer to the constant string.
  */
 const char *file_cbfs_error(void);
 
-/*
- * Initialize the CBFS driver and load metadata into RAM.
+/**
+ * file_cbfs_init() - Initialize the CBFS driver and load metadata into RAM.
  *
- * @param end_of_rom   Points to the end of the ROM the CBFS should be read
+ * @end_of_rom: Points to the end of the ROM the CBFS should be read
  *                      from.
  */
 void file_cbfs_init(uintptr_t end_of_rom);
 
-/*
- * Get the header structure for the current CBFS.
+/**
+ * file_cbfs_get_header() - Get the header structure for the current CBFS.
  *
  * @return A pointer to the constant structure, or NULL if there is none.
  */
 const struct cbfs_header *file_cbfs_get_header(void);
 
-/*
- * Get a handle for the first file in CBFS.
+/**
+ * file_cbfs_get_first() - Get a handle for the first file in CBFS.
  *
  * @return A handle for the first file in CBFS, NULL on error.
  */
 const struct cbfs_cachenode *file_cbfs_get_first(void);
 
-/*
- * Get a handle to the file after this one in CBFS.
+/**
+ * file_cbfs_get_next() - Get a handle to the file after this one in CBFS.
  *
- * @param file         A pointer to the handle to advance.
+ * @file:              A pointer to the handle to advance.
  */
 void file_cbfs_get_next(const struct cbfs_cachenode **file);
 
-/*
- * Find a file with a particular name in CBFS.
+/**
+ * file_cbfs_find() - Find a file with a particular name in CBFS.
  *
- * @param name         The name to search for.
+ * @name:              The name to search for.
  *
  * @return A handle to the file, or NULL on error.
  */
@@ -127,53 +112,55 @@ const struct cbfs_cachenode *file_cbfs_find(const char *name);
 /* All of the functions below can be used without first initializing CBFS. */
 /***************************************************************************/
 
-/*
- * Find a file with a particular name in CBFS without using the heap.
+/**
+ * file_cbfs_find_uncached() - Find a file with a particular name in CBFS
+ * without using the heap.
  *
- * @param end_of_rom   Points to the end of the ROM the CBFS should be read
+ * @end_of_rom:                Points to the end of the ROM the CBFS should be read
  *                      from.
- * @param name         The name to search for.
+ * @name:              The name to search for.
  *
  * @return A handle to the file, or NULL on error.
  */
 const struct cbfs_cachenode *file_cbfs_find_uncached(uintptr_t end_of_rom,
                                                     const char *name);
 
-/*
- * Get the name of a file in CBFS.
+/**
+ * file_cbfs_name() - Get the name of a file in CBFS.
  *
- * @param file         The handle to the file.
+ * @file:              The handle to the file.
  *
  * @return The name of the file, NULL on error.
  */
 const char *file_cbfs_name(const struct cbfs_cachenode *file);
 
-/*
- * Get the size of a file in CBFS.
+/**
+ * file_cbfs_size() - Get the size of a file in CBFS.
  *
- * @param file         The handle to the file.
+ * @file:              The handle to the file.
  *
  * @return The size of the file, zero on error.
  */
 u32 file_cbfs_size(const struct cbfs_cachenode *file);
 
-/*
- * Get the type of a file in CBFS.
+/**
+ * file_cbfs_type() - Get the type of a file in CBFS.
  *
- * @param file         The handle to the file.
+ * @file:              The handle to the file.
  *
  * @return The type of the file, zero on error.
  */
 u32 file_cbfs_type(const struct cbfs_cachenode *file);
 
-/*
- * Read a file from CBFS into RAM
+/**
+ * file_cbfs_read() - Read a file from CBFS into RAM
  *
- * @param file         A handle to the file to read.
- * @param buffer       Where to read it into memory.
+ * @file:              A handle to the file to read.
+ * @buffer:            Where to read it into memory.
+ * @maxsize:           Maximum number of bytes to read
  *
  * @return If positive or zero, the number of characters read. If negative, an
- *         error occurred.
+ *        error occurred.
  */
 long file_cbfs_read(const struct cbfs_cachenode *file, void *buffer,
                    unsigned long maxsize);