1 /* 2 Audio/video-routing-related ivtv functions. 3 Copyright (C) 2003-2004 Kevin Thayer <nufan_wfk at yahoo.com> 4 Copyright (C) 2005-2007 Hans Verkuil <hverkuil@xs4all.nl> 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2 of the License, or 9 (at your option) any later version. 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 #include "ivtv-driver.h" 22 #include "ivtv-i2c.h" 23 #include "ivtv-cards.h" 24 #include "ivtv-gpio.h" 25 #include "ivtv-routing.h" 26 27 #include <media/drv-intf/msp3400.h> 28 #include <media/i2c/m52790.h> 29 #include <media/i2c/upd64031a.h> 30 #include <media/i2c/upd64083.h> 31 32 /* Selects the audio input and output according to the current 33 settings. */ 34 void ivtv_audio_set_io(struct ivtv *itv) 35 { 36 const struct ivtv_card_audio_input *in; 37 u32 input, output = 0; 38 39 /* Determine which input to use */ 40 if (test_bit(IVTV_F_I_RADIO_USER, &itv->i_flags)) 41 in = &itv->card->radio_input; 42 else 43 in = &itv->card->audio_inputs[itv->audio_input]; 44 45 /* handle muxer chips */ 46 input = in->muxer_input; 47 if (itv->card->hw_muxer & IVTV_HW_M52790) 48 output = M52790_OUT_STEREO; 49 v4l2_subdev_call(itv->sd_muxer, audio, s_routing, 50 input, output, 0); 51 52 input = in->audio_input; 53 output = 0; 54 if (itv->card->hw_audio & IVTV_HW_MSP34XX) 55 output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1); 56 ivtv_call_hw(itv, itv->card->hw_audio, audio, s_routing, 57 input, output, 0); 58 } 59 60 /* Selects the video input and output according to the current 61 settings. */ 62 void ivtv_video_set_io(struct ivtv *itv) 63 { 64 int inp = itv->active_input; 65 u32 input; 66 u32 type; 67 68 v4l2_subdev_call(itv->sd_video, video, s_routing, 69 itv->card->video_inputs[inp].video_input, 0, 0); 70 71 type = itv->card->video_inputs[inp].video_type; 72 73 if (type == IVTV_CARD_INPUT_VID_TUNER) { 74 input = 0; /* Tuner */ 75 } else if (type < IVTV_CARD_INPUT_COMPOSITE1) { 76 input = 2; /* S-Video */ 77 } else { 78 input = 1; /* Composite */ 79 } 80 81 if (itv->card->hw_video & IVTV_HW_GPIO) 82 ivtv_call_hw(itv, IVTV_HW_GPIO, video, s_routing, 83 input, 0, 0); 84 85 if (itv->card->hw_video & IVTV_HW_UPD64031A) { 86 if (type == IVTV_CARD_INPUT_VID_TUNER || 87 type >= IVTV_CARD_INPUT_COMPOSITE1) { 88 /* Composite: GR on, connect to 3DYCS */ 89 input = UPD64031A_GR_ON | UPD64031A_3DYCS_COMPOSITE; 90 } else { 91 /* S-Video: GR bypassed, turn it off */ 92 input = UPD64031A_GR_OFF | UPD64031A_3DYCS_DISABLE; 93 } 94 input |= itv->card->gr_config; 95 96 ivtv_call_hw(itv, IVTV_HW_UPD64031A, video, s_routing, 97 input, 0, 0); 98 } 99 100 if (itv->card->hw_video & IVTV_HW_UPD6408X) { 101 input = UPD64083_YCS_MODE; 102 if (type > IVTV_CARD_INPUT_VID_TUNER && 103 type < IVTV_CARD_INPUT_COMPOSITE1) { 104 /* S-Video uses YCNR mode and internal Y-ADC, the 105 upd64031a is not used. */ 106 input |= UPD64083_YCNR_MODE; 107 } 108 else if (itv->card->hw_video & IVTV_HW_UPD64031A) { 109 /* Use upd64031a output for tuner and 110 composite(CX23416GYC only) inputs */ 111 if (type == IVTV_CARD_INPUT_VID_TUNER || 112 itv->card->type == IVTV_CARD_CX23416GYC) { 113 input |= UPD64083_EXT_Y_ADC; 114 } 115 } 116 ivtv_call_hw(itv, IVTV_HW_UPD6408X, video, s_routing, 117 input, 0, 0); 118 } 119 } 120