1 /* 2 * 3 * 4 * Copyright (C) 2005 Mike Isely <isely@pobox.com> 5 * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2 of the License 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 */ 17 18 /* 19 20 This source file is specifically designed to interface with the 21 saa711x support that is available in the v4l available starting 22 with linux 2.6.15. 23 24 */ 25 26 #include "pvrusb2-video-v4l.h" 27 28 29 30 #include "pvrusb2-hdw-internal.h" 31 #include "pvrusb2-debug.h" 32 #include <linux/videodev2.h> 33 #include <media/v4l2-common.h> 34 #include <media/i2c/saa7115.h> 35 #include <linux/errno.h> 36 37 struct routing_scheme { 38 const int *def; 39 unsigned int cnt; 40 }; 41 42 43 static const int routing_scheme0[] = { 44 [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4, 45 /* In radio mode, we mute the video, but point at one 46 spot just to stay consistent */ 47 [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5, 48 [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE5, 49 [PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2, 50 }; 51 52 static const struct routing_scheme routing_def0 = { 53 .def = routing_scheme0, 54 .cnt = ARRAY_SIZE(routing_scheme0), 55 }; 56 57 static const int routing_scheme1[] = { 58 [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4, 59 [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5, 60 [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE3, 61 [PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2, /* or SVIDEO0, it seems */ 62 }; 63 64 static const struct routing_scheme routing_def1 = { 65 .def = routing_scheme1, 66 .cnt = ARRAY_SIZE(routing_scheme1), 67 }; 68 69 static const struct routing_scheme *routing_schemes[] = { 70 [PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0, 71 [PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1, 72 }; 73 74 void pvr2_saa7115_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd) 75 { 76 if (hdw->input_dirty || hdw->force_dirty) { 77 const struct routing_scheme *sp; 78 unsigned int sid = hdw->hdw_desc->signal_routing_scheme; 79 u32 input; 80 81 pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_input(%d)", 82 hdw->input_val); 83 84 sp = (sid < ARRAY_SIZE(routing_schemes)) ? 85 routing_schemes[sid] : NULL; 86 if ((sp == NULL) || 87 (hdw->input_val < 0) || 88 (hdw->input_val >= sp->cnt)) { 89 pvr2_trace(PVR2_TRACE_ERROR_LEGS, 90 "*** WARNING *** subdev v4l2 set_input: Invalid routing scheme (%u) and/or input (%d)", 91 sid, hdw->input_val); 92 return; 93 } 94 input = sp->def[hdw->input_val]; 95 sd->ops->video->s_routing(sd, input, 0, 0); 96 } 97 } 98