LinCAN sources go through big white-space cleanup.

[lincan.git] / lincan / src / open_rtl.c

diff --git a/lincan/src/open_rtl.c b/lincan/src/open_rtl.c
index 2730ee3a45471238671db3e982d331d2141686f8..80904955044f43f3fbe4e33a20e9a82c6cdec59b 100644 (file)
--- a/lincan/src/open_rtl.c
+++ b/lincan/src/open_rtl.c
@@ -1,11 +1,36 @@
-/* open.c
- * Linux CAN-bus device driver.
- * Written by Arnaud Westenberg email:arnaud@wanadoo.nl
- * Rewritten for new CAN queues by Pavel Pisa - OCERA team member
- * email:pisa@cmp.felk.cvut.cz
- * This software is released under the GPL-License.
- * Version lincan-0.2  9 Jul 2003
- */
+/**************************************************************************/
+/* File: open_rtl.c - RT-Linux open systemcall variant                    */
+/*                                                                        */
+/* LinCAN - (Not only) Linux CAN bus driver                               */
+/* Copyright (C) 2002-2009 DCE FEE CTU Prague <http://dce.felk.cvut.cz>   */
+/* Copyright (C) 2002-2009 Pavel Pisa <pisa@cmp.felk.cvut.cz>             */
+/* Funded by OCERA and FRESCOR IST projects                               */
+/* Based on CAN driver code by Arnaud Westenberg <arnaud@wanadoo.nl>      */
+/*                                                                        */
+/* LinCAN is free software; you can redistribute it and/or modify it      */
+/* under terms of the GNU General Public License as published by the      */
+/* Free Software Foundation; either version 2, or (at your option) any    */
+/* later version.  LinCAN 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 LinCAN; see file     */
+/* COPYING. If not, write to the Free Software Foundation, 675 Mass Ave,  */
+/* Cambridge, MA 02139, USA.                                              */
+/*                                                                        */
+/* To allow use of LinCAN in the compact embedded systems firmware        */
+/* and RT-executives (RTEMS for example), main authors agree with next    */
+/* special exception:                                                     */
+/*                                                                        */
+/* Including LinCAN header files in a file, instantiating LinCAN generics */
+/* or templates, or linking other files with LinCAN objects to produce    */
+/* an application image/executable, does not by itself cause the          */
+/* resulting application image/executable to be covered by                */
+/* the GNU General Public License.                                        */
+/* This exception does not however invalidate any other reasons           */
+/* why the executable file might be covered by the GNU Public License.    */
+/* Publication of enhanced or derived LinCAN files is required although.  */
+/**************************************************************************/
 
 #ifdef CAN_WITH_RTL
 
@@ -25,22 +50,22 @@ static inline
 int can_open_rtl_common(struct canuser_t *canuser, int open_flags)
 {
        struct msgobj_t *obj=canuser->msgobj;
-       struct chip_t *chip;
+       struct canchip_t *chip;
        struct canque_ends_t *qends;
        struct canque_edge_t *edge;
        can_spin_irqflags_t iflags;
 
        if(!obj) return -ENODEV;
-       
+
        can_msgobj_set_fl(obj,OPENED);
-       
+
        chip=obj->hostchip;
        if (chip) {
                if (!(chip->flags & CHIP_CONFIGURED)) {
                        if (chip->chipspecops->chip_config(chip))
                                CANMSG("Error configuring chip.\n");
                        else
-                               chip->flags |= CHIP_CONFIGURED; 
+                               chip->flags |= CHIP_CONFIGURED;
 
                        if (chip->chipspecops->pre_read_config(chip,obj)<0)
                                CANMSG("Error initializing chip for receiving\n");
@@ -55,7 +80,7 @@ int can_open_rtl_common(struct canuser_t *canuser, int open_flags)
        /* mark memory as allocated from RTL memory pool */
        qends->ends_flags|=CAN_ENDSF_MEM_RTL;
        canuser->qends = qends;
-       
+
        can_spin_lock_irqsave(&canuser_manipulation_lock, iflags);
        list_add(&canuser->peers, &obj->obj_users);
        can_spin_unlock_irqrestore(&canuser_manipulation_lock, iflags);
@@ -71,10 +96,10 @@ int can_open_rtl_common(struct canuser_t *canuser, int open_flags)
 
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,50))
        MOD_INC_USE_COUNT;      /*is this enough for RT-Linux context ?*/
-#endif 
+#endif
 
        return 0;
-       
+
     no_rx_qedge:
        canque_notify_bothends(edge, CANQUEUE_NOTIFY_DEAD_WANTED);
        canque_edge_decref(edge);
@@ -93,14 +118,14 @@ int can_open_rtl_posix(struct rtl_file *fptr)
 {
        int ret;
        struct msgobj_t *obj;
-       struct chip_t *chip;
+       struct canchip_t *chip;
        struct canuser_t *canuser;
        int minor_nr = RTL_MINOR_FROM_FILEPTR(fptr);
-       
+
        if(minor_nr>=MAX_TOT_MSGOBJS)
                return -ENODEV;
 
-       if ( ((obj=objects_p[minor_nr]) == NULL) || 
+       if ( ((obj=objects_p[minor_nr]) == NULL) ||
                        ((chip=objects_p[minor_nr]->hostchip) == NULL) ) {
                CANMSG("There is no hardware support for the device file with minor nr.: %d\n",minor_nr);
                return -ENODEV;
@@ -131,7 +156,7 @@ int can_open_rtl_posix(struct rtl_file *fptr)
 
     no_canuser:
        atomic_dec(&obj->obj_used);
-       
+
        return ret;
 }