release/src-rt-6.x/linux/linux-2.6/drivers/media/video/ivtv/ivtv-video.c

   1 /*
   2     saa7127 interface functions
   3     Copyright (C) 2004-2007  Hans Verkuil <hverkuil@xs4all.nl>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19
  20 #include "ivtv-driver.h"
  21 #include "ivtv-video.h"
  22 #include "ivtv-i2c.h"
  23 #include "ivtv-gpio.h"
  24 #include "ivtv-cards.h"
  25 #include <media/upd64031a.h>
  26 #include <media/upd64083.h>
  27
  28 void ivtv_set_vps(struct ivtv *itv, int enabled, u8 vps1, u8 vps2, u8 vps3,
  29                   u8 vps4, u8 vps5)
  30 {
  31         struct v4l2_sliced_vbi_data data;
  32
  33         if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
  34                 return;
  35         data.id = V4L2_SLICED_VPS;
  36         data.field = 0;
  37         data.line = enabled ? 16 : 0;
  38         data.data[4] = vps1;
  39         data.data[10] = vps2;
  40         data.data[11] = vps3;
  41         data.data[12] = vps4;
  42         data.data[13] = vps5;
  43         ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data);
  44 }
  45
  46 void ivtv_set_cc(struct ivtv *itv, int mode, u8 cc1, u8 cc2, u8 cc3, u8 cc4)
  47 {
  48         struct v4l2_sliced_vbi_data data;
  49
  50         if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
  51                 return;
  52         data.id = V4L2_SLICED_CAPTION_525;
  53         data.field = 0;
  54         data.line = (mode & 1) ? 21 : 0;
  55         data.data[0] = cc1;
  56         data.data[1] = cc2;
  57         ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data);
  58         data.field = 1;
  59         data.line = (mode & 2) ? 21 : 0;
  60         data.data[0] = cc3;
  61         data.data[1] = cc4;
  62         ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data);
  63 }
  64
  65 void ivtv_set_wss(struct ivtv *itv, int enabled, int mode)
  66 {
  67         struct v4l2_sliced_vbi_data data;
  68
  69         if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT))
  70                 return;
  71         /* When using a 50 Hz system, always turn on the
  72            wide screen signal with 4x3 ratio as the default.
  73            Turning this signal on and off can confuse certain
  74            TVs. As far as I can tell there is no reason not to
  75            transmit this signal. */
  76         if ((itv->std & V4L2_STD_625_50) && !enabled) {
  77                 enabled = 1;
  78                 mode = 0x08;  /* 4x3 full format */
  79         }
  80         data.id = V4L2_SLICED_WSS_625;
  81         data.field = 0;
  82         data.line = enabled ? 23 : 0;
  83         data.data[0] = mode & 0xff;
  84         data.data[1] = (mode >> 8) & 0xff;
  85         ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data);
  86 }
  87
  88 void ivtv_video_set_io(struct ivtv *itv)
  89 {
  90         struct v4l2_routing route;
  91         int inp = itv->active_input;
  92         u32 type;
  93
  94         route.input = itv->card->video_inputs[inp].video_input;
  95         route.output = 0;
  96         itv->video_dec_func(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route);
  97
  98         type = itv->card->video_inputs[inp].video_type;
  99
 100         if (type == IVTV_CARD_INPUT_VID_TUNER) {
 101                 route.input = 0;  /* Tuner */
 102         } else if (type < IVTV_CARD_INPUT_COMPOSITE1) {
 103                 route.input = 2;  /* S-Video */
 104         } else {
 105                 route.input = 1;  /* Composite */
 106         }
 107
 108         if (itv->card->hw_video & IVTV_HW_GPIO)
 109                 ivtv_gpio(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route);
 110
 111         if (itv->card->hw_video & IVTV_HW_UPD64031A) {
 112                 if (type == IVTV_CARD_INPUT_VID_TUNER ||
 113                     type >= IVTV_CARD_INPUT_COMPOSITE1) {
 114                         /* Composite: GR on, connect to 3DYCS */
 115                         route.input = UPD64031A_GR_ON | UPD64031A_3DYCS_COMPOSITE;
 116                 } else {
 117                         /* S-Video: GR bypassed, turn it off */
 118                         route.input = UPD64031A_GR_OFF | UPD64031A_3DYCS_DISABLE;
 119                 }
 120                 route.input |= itv->card->gr_config;
 121
 122                 ivtv_upd64031a(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route);
 123         }
 124
 125         if (itv->card->hw_video & IVTV_HW_UPD6408X) {
 126                 route.input = UPD64083_YCS_MODE;
 127                 if (type > IVTV_CARD_INPUT_VID_TUNER &&
 128                     type < IVTV_CARD_INPUT_COMPOSITE1) {
 129                         /* S-Video uses YCNR mode and internal Y-ADC, the upd64031a
 130                            is not used. */
 131                         route.input |= UPD64083_YCNR_MODE;
 132                 }
 133                 else if (itv->card->hw_video & IVTV_HW_UPD64031A) {
 134                   /* Use upd64031a output for tuner and composite(CX23416GYC only) inputs */
 135                   if ((type == IVTV_CARD_INPUT_VID_TUNER)||
 136                       (itv->card->type == IVTV_CARD_CX23416GYC)) {
 137                     route.input |= UPD64083_EXT_Y_ADC;
 138                   }
 139                 }
 140                 ivtv_upd64083(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route);
 141         }
 142 }