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 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 * 20 */ 21 22 /* 23 24 This source file is specifically designed to interface with the 25 saa711x support that is available in the v4l available starting 26 with linux 2.6.15. 27 28 */ 29 30 #include "pvrusb2-video-v4l.h" 31 32 33 34 #include "pvrusb2-hdw-internal.h" 35 #include "pvrusb2-debug.h" 36 #include <linux/videodev2.h> 37 #include <media/v4l2-common.h> 38 #include <media/i2c/saa7115.h> 39 #include <linux/errno.h> 40 41 struct routing_scheme { 42 const int *def; 43 unsigned int cnt; 44 }; 45 46 47 static const int routing_scheme0[] = { 48 [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4, 49 /* In radio mode, we mute the video, but point at one 50 spot just to stay consistent */ 51 [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5, 52 [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE5, 53 [PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2, 54 }; 55 56 static const struct routing_scheme routing_def0 = { 57 .def = routing_scheme0, 58 .cnt = ARRAY_SIZE(routing_scheme0), 59 }; 60 61 static const int routing_scheme1[] = { 62 [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4, 63 [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5, 64 [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE3, 65 [PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2, /* or SVIDEO0, it seems */ 66 }; 67 68 static const struct routing_scheme routing_def1 = { 69 .def = routing_scheme1, 70 .cnt = ARRAY_SIZE(routing_scheme1), 71 }; 72 73 static const struct routing_scheme *routing_schemes[] = { 74 [PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0, 75 [PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1, 76 }; 77 78 void pvr2_saa7115_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd) 79 { 80 if (hdw->input_dirty || hdw->force_dirty) { 81 const struct routing_scheme *sp; 82 unsigned int sid = hdw->hdw_desc->signal_routing_scheme; 83 u32 input; 84 85 pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_input(%d)", 86 hdw->input_val); 87 88 sp = (sid < ARRAY_SIZE(routing_schemes)) ? 89 routing_schemes[sid] : NULL; 90 if ((sp == NULL) || 91 (hdw->input_val < 0) || 92 (hdw->input_val >= sp->cnt)) { 93 pvr2_trace(PVR2_TRACE_ERROR_LEGS, 94 "*** WARNING *** subdev v4l2 set_input:" 95 " Invalid routing scheme (%u)" 96 " and/or input (%d)", 97 sid, hdw->input_val); 98 return; 99 } 100 input = sp->def[hdw->input_val]; 101 sd->ops->video->s_routing(sd, input, 0, 0); 102 } 103 } 104