1 /**************************************************************************/
2 /* File: ioctl_rtl.c - RT-Linux variant of IOCTL system call */
4 /* LinCAN - (Not only) Linux CAN bus driver */
5 /* Copyright (C) 2002-2009 DCE FEE CTU Prague <http://dce.felk.cvut.cz> */
6 /* Copyright (C) 2002-2009 Pavel Pisa <pisa@cmp.felk.cvut.cz> */
7 /* Funded by OCERA and FRESCOR IST projects */
8 /* Based on CAN driver code by Arnaud Westenberg <arnaud@wanadoo.nl> */
10 /* LinCAN is free software; you can redistribute it and/or modify it */
11 /* under terms of the GNU General Public License as published by the */
12 /* Free Software Foundation; either version 2, or (at your option) any */
13 /* later version. LinCAN is distributed in the hope that it will be */
14 /* useful, but WITHOUT ANY WARRANTY; without even the implied warranty */
15 /* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU */
16 /* General Public License for more details. You should have received a */
17 /* copy of the GNU General Public License along with LinCAN; see file */
18 /* COPYING. If not, write to the Free Software Foundation, 675 Mass Ave, */
19 /* Cambridge, MA 02139, USA. */
21 /* To allow use of LinCAN in the compact embedded systems firmware */
22 /* and RT-executives (RTEMS for example), main authors agree with next */
23 /* special exception: */
25 /* Including LinCAN header files in a file, instantiating LinCAN generics */
26 /* or templates, or linking other files with LinCAN objects to produce */
27 /* an application image/executable, does not by itself cause the */
28 /* resulting application image/executable to be covered by */
29 /* the GNU General Public License. */
30 /* This exception does not however invalidate any other reasons */
31 /* why the executable file might be covered by the GNU Public License. */
32 /* Publication of enhanced or derived LinCAN files is required although. */
33 /**************************************************************************/
37 #include "../include/can.h"
38 #include "../include/can_sysdep.h"
39 #include "../include/main.h"
41 #include <rtl_posixio.h>
42 #include "../include/ioctl.h"
43 #include "../include/can_iortl.h"
46 int can_ioctl_rtl_posix(struct rtl_file *fptr, unsigned int cmd, unsigned long arg)
48 struct canuser_t *canuser =
49 (struct canuser_t *)can_get_rtl_file_private_data(fptr);
51 unsigned short channel=0;
52 unsigned btr0=0, btr1=0;
54 struct canchip_t *chip;
55 struct canque_ends_t *qends;
57 if(!canuser || (canuser->magic != CAN_USER_MAGIC)){
58 CANMSG("can_ioctl_: bad canuser magic\n");
62 obj = canuser->msgobj;
64 CANMSG("Could not assign buffer structure\n");
68 qends = canuser->qends;
71 CANMSG("Device is not correctly configured.\n");
72 CANMSG("Please reload the driver.\n");
78 return can_ioctl_query(canuser, arg);
81 for (i=0x0; i<0x100; i++)
82 CANMSG("0x%x is 0x%x\n",i,can_read_reg(chip,i));
86 if (chip->chipspecops->start_chip(chip))
91 if (chip->chipspecops->stop_chip(chip))
96 canque_flush(canuser->rx_edge0);
100 if(canuser->rx_edge0){
101 canque_set_filt(canuser->rx_edge0, arg, ~0, 0);
107 case CANQUE_FILTER: {
108 struct canfilt_t canfilt=*(struct canfilt_t *)arg;
109 if(canuser->rx_edge0){
110 canque_set_filt(canuser->rx_edge0, canfilt.id, canfilt.mask, canfilt.flags);
116 channel = arg & 0xff;
117 btr0 = (arg >> 8) & 0xff;
118 btr1 = (arg >> 16) & 0xff;
120 if (chip->chipspecops->set_btregs(chip, btr0, btr1)) {
121 CANMSG("Error setting bit timing registers\n");
127 CANMSG("Not a valid ioctl command\n");
136 #endif /*CAN_WITH_RTL*/