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>
32 lines
1.2 KiB
C
32 lines
1.2 KiB
C
/*
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ivtv firmware functions.
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Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com>
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Copyright (C) 2004 Chris Kennedy <c@groovy.org>
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Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef IVTV_FIRMWARE_H
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#define IVTV_FIRMWARE_H
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int ivtv_firmware_init(struct ivtv *itv);
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void ivtv_firmware_versions(struct ivtv *itv);
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void ivtv_halt_firmware(struct ivtv *itv);
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void ivtv_init_mpeg_decoder(struct ivtv *itv);
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int ivtv_firmware_check(struct ivtv *itv, char *where);
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#endif
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