diff options
Diffstat (limited to 'drivers/media/usb/pvrusb2/pvrusb2-cx2584x-v4l.c')
| -rw-r--r-- | drivers/media/usb/pvrusb2/pvrusb2-cx2584x-v4l.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-cx2584x-v4l.c b/drivers/media/usb/pvrusb2/pvrusb2-cx2584x-v4l.c new file mode 100644 index 000000000..d5bec0f69 --- /dev/null +++ b/drivers/media/usb/pvrusb2/pvrusb2-cx2584x-v4l.c @@ -0,0 +1,147 @@ +/* + * + * + * 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. + * + */ + +/* + + This source file is specifically designed to interface with the + cx2584x, in kernels 2.6.16 or newer. + +*/ + +#include "pvrusb2-cx2584x-v4l.h" + + +#include "pvrusb2-hdw-internal.h" +#include "pvrusb2-debug.h" +#include <media/drv-intf/cx25840.h> +#include <linux/videodev2.h> +#include <media/v4l2-common.h> +#include <linux/errno.h> + + +struct routing_scheme_item { + int vid; + int aud; +}; + +struct routing_scheme { + const struct routing_scheme_item *def; + unsigned int cnt; +}; + +static const struct routing_scheme_item routing_scheme0[] = { + [PVR2_CVAL_INPUT_TV] = { + .vid = CX25840_COMPOSITE7, + .aud = CX25840_AUDIO8, + }, + [PVR2_CVAL_INPUT_RADIO] = { /* Treat the same as composite */ + .vid = CX25840_COMPOSITE3, + .aud = CX25840_AUDIO_SERIAL, + }, + [PVR2_CVAL_INPUT_COMPOSITE] = { + .vid = CX25840_COMPOSITE3, + .aud = CX25840_AUDIO_SERIAL, + }, + [PVR2_CVAL_INPUT_SVIDEO] = { + .vid = CX25840_SVIDEO1, + .aud = CX25840_AUDIO_SERIAL, + }, +}; + +static const struct routing_scheme routing_def0 = { + .def = routing_scheme0, + .cnt = ARRAY_SIZE(routing_scheme0), +}; + +/* Specific to gotview device */ +static const struct routing_scheme_item routing_schemegv[] = { + [PVR2_CVAL_INPUT_TV] = { + .vid = CX25840_COMPOSITE2, + .aud = CX25840_AUDIO5, + }, + [PVR2_CVAL_INPUT_RADIO] = { + /* line-in is used for radio and composite. A GPIO is + used to switch between the two choices. */ + .vid = CX25840_COMPOSITE1, + .aud = CX25840_AUDIO_SERIAL, + }, + [PVR2_CVAL_INPUT_COMPOSITE] = { + .vid = CX25840_COMPOSITE1, + .aud = CX25840_AUDIO_SERIAL, + }, + [PVR2_CVAL_INPUT_SVIDEO] = { + .vid = (CX25840_SVIDEO_LUMA3|CX25840_SVIDEO_CHROMA4), + .aud = CX25840_AUDIO_SERIAL, + }, +}; + +static const struct routing_scheme routing_defgv = { + .def = routing_schemegv, + .cnt = ARRAY_SIZE(routing_schemegv), +}; + +/* Specific to grabster av400 device */ +static const struct routing_scheme_item routing_schemeav400[] = { + [PVR2_CVAL_INPUT_COMPOSITE] = { + .vid = CX25840_COMPOSITE1, + .aud = CX25840_AUDIO_SERIAL, + }, + [PVR2_CVAL_INPUT_SVIDEO] = { + .vid = (CX25840_SVIDEO_LUMA2|CX25840_SVIDEO_CHROMA4), + .aud = CX25840_AUDIO_SERIAL, + }, +}; + +static const struct routing_scheme routing_defav400 = { + .def = routing_schemeav400, + .cnt = ARRAY_SIZE(routing_schemeav400), +}; + +static const struct routing_scheme *routing_schemes[] = { + [PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0, + [PVR2_ROUTING_SCHEME_GOTVIEW] = &routing_defgv, + [PVR2_ROUTING_SCHEME_AV400] = &routing_defav400, +}; + +void pvr2_cx25840_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd) +{ + pvr2_trace(PVR2_TRACE_CHIPS, "subdev cx2584x update..."); + if (hdw->input_dirty || hdw->force_dirty) { + enum cx25840_video_input vid_input; + enum cx25840_audio_input aud_input; + const struct routing_scheme *sp; + unsigned int sid = hdw->hdw_desc->signal_routing_scheme; + + 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 cx2584x set_input: Invalid routing scheme (%u) and/or input (%d)", + sid, hdw->input_val); + return; + } + vid_input = sp->def[hdw->input_val].vid; + aud_input = sp->def[hdw->input_val].aud; + pvr2_trace(PVR2_TRACE_CHIPS, + "subdev cx2584x set_input vid=0x%x aud=0x%x", + vid_input, aud_input); + sd->ops->video->s_routing(sd, (u32)vid_input, 0, 0); + sd->ops->audio->s_routing(sd, (u32)aud_input, 0, 0); + } +} |