914610e8c5
>From Ian's e-mail: When a device is opened the firmware state will be checked. If it isn't responding then the open will fail with -EIO. Due to the nature of the hardware, a single failed check will block everything since we don't know exactly what has failed. A side effect of this is the blocking of debug access, so an additional debug level has been created which allows the block to be bypassed. Andy Walls' modifications: I modified Ian's patch to add a separate fw_debug module parameter to change the driver's behavior, as opposed to using the normal debug module parameter. The fw_debug module parameter is only available when CONFIG_VIDEO_ADV_DEBUG is set. I also made some minor whitespace adjustments and changed some warning messages to be a bit more specific. s/happy/glad/g Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk> Signed-off-by: Andy Walls <awalls@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
31 lines
1.2 KiB
C
31 lines
1.2 KiB
C
/*
|
|
ivtv firmware functions.
|
|
Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
|
|
Copyright (C) 2004 Chris Kennedy <c@groovy.org>
|
|
Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
|
|
|
|
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
|
|
*/
|
|
|
|
#ifndef IVTV_FIRMWARE_H
|
|
#define IVTV_FIRMWARE_H
|
|
|
|
int ivtv_firmware_init(struct ivtv *itv);
|
|
void ivtv_firmware_versions(struct ivtv *itv);
|
|
void ivtv_halt_firmware(struct ivtv *itv);
|
|
void ivtv_init_mpeg_decoder(struct ivtv *itv);
|
|
int ivtv_firmware_check(struct ivtv *itv, char *where);
|
|
|
|
#endif
|