diff options
Diffstat (limited to 'drivers/media/usb/pvrusb2/pvrusb2-video-v4l.c')
| -rw-r--r-- | drivers/media/usb/pvrusb2/pvrusb2-video-v4l.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-video-v4l.c b/drivers/media/usb/pvrusb2/pvrusb2-video-v4l.c new file mode 100644 index 000000000000..2e205c99eb96 --- /dev/null +++ b/drivers/media/usb/pvrusb2/pvrusb2-video-v4l.c @@ -0,0 +1,114 @@ +/* + * + * + * Copyright (C) 2005 Mike Isely <isely@pobox.com> + * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> + * + * 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 + * + * 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 + * + */ + +/* + + This source file is specifically designed to interface with the + saa711x support that is available in the v4l available starting + with linux 2.6.15. + +*/ + +#include "pvrusb2-video-v4l.h" + + + +#include "pvrusb2-hdw-internal.h" +#include "pvrusb2-debug.h" +#include <linux/videodev2.h> +#include <media/v4l2-common.h> +#include <media/saa7115.h> +#include <linux/errno.h> + +struct routing_scheme { + const int *def; + unsigned int cnt; +}; + + +static const int routing_scheme0[] = { + [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4, + /* In radio mode, we mute the video, but point at one + spot just to stay consistent */ + [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5, + [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE5, + [PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2, +}; + +static const struct routing_scheme routing_def0 = { + .def = routing_scheme0, + .cnt = ARRAY_SIZE(routing_scheme0), +}; + +static const int routing_scheme1[] = { + [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4, + [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5, + [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE3, + [PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2, /* or SVIDEO0, it seems */ +}; + +static const struct routing_scheme routing_def1 = { + .def = routing_scheme1, + .cnt = ARRAY_SIZE(routing_scheme1), +}; + +static const struct routing_scheme *routing_schemes[] = { + [PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0, + [PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1, +}; + +void pvr2_saa7115_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd) +{ + if (hdw->input_dirty || hdw->force_dirty) { + const struct routing_scheme *sp; + unsigned int sid = hdw->hdw_desc->signal_routing_scheme; + u32 input; + + pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_input(%d)", + hdw->input_val); + + sp = (sid < ARRAY_SIZE(routing_schemes)) ? + routing_schemes[sid] : NULL; + if ((sp == NULL) || + (hdw->input_val < 0) || + (hdw->input_val >= sp->cnt)) { + pvr2_trace(PVR2_TRACE_ERROR_LEGS, + "*** WARNING *** subdev v4l2 set_input:" + " Invalid routing scheme (%u)" + " and/or input (%d)", + sid, hdw->input_val); + return; + } + input = sp->def[hdw->input_val]; + sd->ops->video->s_routing(sd, input, 0, 0); + } +} + + +/* + Stuff for Emacs to see, in order to encourage consistent editing style: + *** Local Variables: *** + *** mode: c *** + *** fill-column: 70 *** + *** tab-width: 8 *** + *** c-basic-offset: 8 *** + *** End: *** + */ |