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 cx2584x, in kernels 2.6.16 or newer. 22 23 */ 24 25 #include "pvrusb2-cx2584x-v4l.h" 26 27 28 #include "pvrusb2-hdw-internal.h" 29 #include "pvrusb2-debug.h" 30 #include <media/drv-intf/cx25840.h> 31 #include <linux/videodev2.h> 32 #include <media/v4l2-common.h> 33 #include <linux/errno.h> 34 35 36 struct routing_scheme_item { 37 int vid; 38 int aud; 39 }; 40 41 struct routing_scheme { 42 const struct routing_scheme_item *def; 43 unsigned int cnt; 44 }; 45 46 static const struct routing_scheme_item routing_scheme0[] = { 47 [PVR2_CVAL_INPUT_TV] = { 48 .vid = CX25840_COMPOSITE7, 49 .aud = CX25840_AUDIO8, 50 }, 51 [PVR2_CVAL_INPUT_RADIO] = { /* Treat the same as composite */ 52 .vid = CX25840_COMPOSITE3, 53 .aud = CX25840_AUDIO_SERIAL, 54 }, 55 [PVR2_CVAL_INPUT_COMPOSITE] = { 56 .vid = CX25840_COMPOSITE3, 57 .aud = CX25840_AUDIO_SERIAL, 58 }, 59 [PVR2_CVAL_INPUT_SVIDEO] = { 60 .vid = CX25840_SVIDEO1, 61 .aud = CX25840_AUDIO_SERIAL, 62 }, 63 }; 64 65 static const struct routing_scheme routing_def0 = { 66 .def = routing_scheme0, 67 .cnt = ARRAY_SIZE(routing_scheme0), 68 }; 69 70 /* Specific to gotview device */ 71 static const struct routing_scheme_item routing_schemegv[] = { 72 [PVR2_CVAL_INPUT_TV] = { 73 .vid = CX25840_COMPOSITE2, 74 .aud = CX25840_AUDIO5, 75 }, 76 [PVR2_CVAL_INPUT_RADIO] = { 77 /* line-in is used for radio and composite. A GPIO is 78 used to switch between the two choices. */ 79 .vid = CX25840_COMPOSITE1, 80 .aud = CX25840_AUDIO_SERIAL, 81 }, 82 [PVR2_CVAL_INPUT_COMPOSITE] = { 83 .vid = CX25840_COMPOSITE1, 84 .aud = CX25840_AUDIO_SERIAL, 85 }, 86 [PVR2_CVAL_INPUT_SVIDEO] = { 87 .vid = (CX25840_SVIDEO_LUMA3|CX25840_SVIDEO_CHROMA4), 88 .aud = CX25840_AUDIO_SERIAL, 89 }, 90 }; 91 92 static const struct routing_scheme routing_defgv = { 93 .def = routing_schemegv, 94 .cnt = ARRAY_SIZE(routing_schemegv), 95 }; 96 97 /* Specific to grabster av400 device */ 98 static const struct routing_scheme_item routing_schemeav400[] = { 99 [PVR2_CVAL_INPUT_COMPOSITE] = { 100 .vid = CX25840_COMPOSITE1, 101 .aud = CX25840_AUDIO_SERIAL, 102 }, 103 [PVR2_CVAL_INPUT_SVIDEO] = { 104 .vid = (CX25840_SVIDEO_LUMA2|CX25840_SVIDEO_CHROMA4), 105 .aud = CX25840_AUDIO_SERIAL, 106 }, 107 }; 108 109 static const struct routing_scheme routing_defav400 = { 110 .def = routing_schemeav400, 111 .cnt = ARRAY_SIZE(routing_schemeav400), 112 }; 113 114 static const struct routing_scheme *routing_schemes[] = { 115 [PVR2_ROUTING_SCHEME_HAUPPAUGE] = &routing_def0, 116 [PVR2_ROUTING_SCHEME_GOTVIEW] = &routing_defgv, 117 [PVR2_ROUTING_SCHEME_AV400] = &routing_defav400, 118 }; 119 120 void pvr2_cx25840_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd) 121 { 122 pvr2_trace(PVR2_TRACE_CHIPS, "subdev cx2584x update..."); 123 if (hdw->input_dirty || hdw->force_dirty) { 124 enum cx25840_video_input vid_input; 125 enum cx25840_audio_input aud_input; 126 const struct routing_scheme *sp; 127 unsigned int sid = hdw->hdw_desc->signal_routing_scheme; 128 129 sp = (sid < ARRAY_SIZE(routing_schemes)) ? 130 routing_schemes[sid] : NULL; 131 if ((sp == NULL) || 132 (hdw->input_val < 0) || 133 (hdw->input_val >= sp->cnt)) { 134 pvr2_trace(PVR2_TRACE_ERROR_LEGS, 135 "*** WARNING *** subdev cx2584x set_input: Invalid routing scheme (%u) and/or input (%d)", 136 sid, hdw->input_val); 137 return; 138 } 139 vid_input = sp->def[hdw->input_val].vid; 140 aud_input = sp->def[hdw->input_val].aud; 141 pvr2_trace(PVR2_TRACE_CHIPS, 142 "subdev cx2584x set_input vid=0x%x aud=0x%x", 143 vid_input, aud_input); 144 sd->ops->video->s_routing(sd, (u32)vid_input, 0, 0); 145 sd->ops->audio->s_routing(sd, (u32)aud_input, 0, 0); 146 } 147 } 148