diff options
Diffstat (limited to 'drivers/media/video/ivtv/ivtv-video.c')
| -rw-r--r-- | drivers/media/video/ivtv/ivtv-video.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/drivers/media/video/ivtv/ivtv-video.c b/drivers/media/video/ivtv/ivtv-video.c new file mode 100644 index 000000000000..5858b197d510 --- /dev/null +++ b/drivers/media/video/ivtv/ivtv-video.c @@ -0,0 +1,142 @@ +/* + saa7127 interface functions + Copyright (C) 2004-2007 Hans Verkuil <hverkuil@xs4all.nl> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include "ivtv-driver.h" +#include "ivtv-video.h" +#include "ivtv-i2c.h" +#include "ivtv-gpio.h" +#include "ivtv-cards.h" +#include <media/upd64031a.h> +#include <media/upd64083.h> + +void ivtv_set_vps(struct ivtv *itv, int enabled, u8 vps1, u8 vps2, u8 vps3, + u8 vps4, u8 vps5) +{ + struct v4l2_sliced_vbi_data data; + + if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) + return; + data.id = V4L2_SLICED_VPS; + data.field = 0; + data.line = enabled ? 16 : 0; + data.data[4] = vps1; + data.data[10] = vps2; + data.data[11] = vps3; + data.data[12] = vps4; + data.data[13] = vps5; + ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data); +} + +void ivtv_set_cc(struct ivtv *itv, int mode, u8 cc1, u8 cc2, u8 cc3, u8 cc4) +{ + struct v4l2_sliced_vbi_data data; + + if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) + return; + data.id = V4L2_SLICED_CAPTION_525; + data.field = 0; + data.line = (mode & 1) ? 21 : 0; + data.data[0] = cc1; + data.data[1] = cc2; + ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data); + data.field = 1; + data.line = (mode & 2) ? 21 : 0; + data.data[0] = cc3; + data.data[1] = cc4; + ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data); +} + +void ivtv_set_wss(struct ivtv *itv, int enabled, int mode) +{ + struct v4l2_sliced_vbi_data data; + + if (!(itv->v4l2_cap & V4L2_CAP_VIDEO_OUTPUT)) + return; + /* When using a 50 Hz system, always turn on the + wide screen signal with 4x3 ratio as the default. + Turning this signal on and off can confuse certain + TVs. As far as I can tell there is no reason not to + transmit this signal. */ + if ((itv->std & V4L2_STD_625_50) && !enabled) { + enabled = 1; + mode = 0x08; /* 4x3 full format */ + } + data.id = V4L2_SLICED_WSS_625; + data.field = 0; + data.line = enabled ? 23 : 0; + data.data[0] = mode & 0xff; + data.data[1] = (mode >> 8) & 0xff; + ivtv_saa7127(itv, VIDIOC_INT_S_VBI_DATA, &data); +} + +void ivtv_video_set_io(struct ivtv *itv) +{ + struct v4l2_routing route; + int inp = itv->active_input; + u32 type; + + route.input = itv->card->video_inputs[inp].video_input; + route.output = 0; + itv->video_dec_func(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route); + + type = itv->card->video_inputs[inp].video_type; + + if (type == IVTV_CARD_INPUT_VID_TUNER) { + route.input = 0; /* Tuner */ + } else if (type < IVTV_CARD_INPUT_COMPOSITE1) { + route.input = 2; /* S-Video */ + } else { + route.input = 1; /* Composite */ + } + + if (itv->card->hw_video & IVTV_HW_GPIO) + ivtv_gpio(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route); + + if (itv->card->hw_video & IVTV_HW_UPD64031A) { + if (type == IVTV_CARD_INPUT_VID_TUNER || + type >= IVTV_CARD_INPUT_COMPOSITE1) { + /* Composite: GR on, connect to 3DYCS */ + route.input = UPD64031A_GR_ON | UPD64031A_3DYCS_COMPOSITE; + } else { + /* S-Video: GR bypassed, turn it off */ + route.input = UPD64031A_GR_OFF | UPD64031A_3DYCS_DISABLE; + } + route.input |= itv->card->gr_config; + + ivtv_upd64031a(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route); + } + + if (itv->card->hw_video & IVTV_HW_UPD6408X) { + route.input = UPD64083_YCS_MODE; + if (type > IVTV_CARD_INPUT_VID_TUNER && + type < IVTV_CARD_INPUT_COMPOSITE1) { + /* S-Video uses YCNR mode and internal Y-ADC, the upd64031a + is not used. */ + route.input |= UPD64083_YCNR_MODE; + } + else if (itv->card->hw_video & IVTV_HW_UPD64031A) { + /* Use upd64031a output for tuner and composite(CX23416GYC only) inputs */ + if ((type == IVTV_CARD_INPUT_VID_TUNER)|| + (itv->card->type == IVTV_CARD_CX23416GYC)) { + route.input |= UPD64083_EXT_Y_ADC; + } + } + ivtv_upd64083(itv, VIDIOC_INT_S_VIDEO_ROUTING, &route); + } +} |