1 /* 2 ioctl control 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-ioctl.h" 23 #include "ivtv-controls.h" 24 #include "ivtv-mailbox.h" 25 26 static int ivtv_s_stream_vbi_fmt(struct cx2341x_handler *cxhdl, u32 fmt) 27 { 28 struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl); 29 30 /* First try to allocate sliced VBI buffers if needed. */ 31 if (fmt && itv->vbi.sliced_mpeg_data[0] == NULL) { 32 int i; 33 34 for (i = 0; i < IVTV_VBI_FRAMES; i++) { 35 /* Yuck, hardcoded. Needs to be a define */ 36 itv->vbi.sliced_mpeg_data[i] = kmalloc(2049, GFP_KERNEL); 37 if (itv->vbi.sliced_mpeg_data[i] == NULL) { 38 while (--i >= 0) { 39 kfree(itv->vbi.sliced_mpeg_data[i]); 40 itv->vbi.sliced_mpeg_data[i] = NULL; 41 } 42 return -ENOMEM; 43 } 44 } 45 } 46 47 itv->vbi.insert_mpeg = fmt; 48 49 if (itv->vbi.insert_mpeg == 0) { 50 return 0; 51 } 52 /* Need sliced data for mpeg insertion */ 53 if (ivtv_get_service_set(itv->vbi.sliced_in) == 0) { 54 if (itv->is_60hz) 55 itv->vbi.sliced_in->service_set = V4L2_SLICED_CAPTION_525; 56 else 57 itv->vbi.sliced_in->service_set = V4L2_SLICED_WSS_625; 58 ivtv_expand_service_set(itv->vbi.sliced_in, itv->is_50hz); 59 } 60 return 0; 61 } 62 63 static int ivtv_s_video_encoding(struct cx2341x_handler *cxhdl, u32 val) 64 { 65 struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl); 66 int is_mpeg1 = val == V4L2_MPEG_VIDEO_ENCODING_MPEG_1; 67 struct v4l2_subdev_format format = { 68 .which = V4L2_SUBDEV_FORMAT_ACTIVE, 69 }; 70 71 /* fix videodecoder resolution */ 72 format.format.width = cxhdl->width / (is_mpeg1 ? 2 : 1); 73 format.format.height = cxhdl->height; 74 format.format.code = MEDIA_BUS_FMT_FIXED; 75 v4l2_subdev_call(itv->sd_video, pad, set_fmt, NULL, &format); 76 return 0; 77 } 78 79 static int ivtv_s_audio_sampling_freq(struct cx2341x_handler *cxhdl, u32 idx) 80 { 81 static const u32 freqs[3] = { 44100, 48000, 32000 }; 82 struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl); 83 84 /* The audio clock of the digitizer must match the codec sample 85 rate otherwise you get some very strange effects. */ 86 if (idx < ARRAY_SIZE(freqs)) 87 ivtv_call_all(itv, audio, s_clock_freq, freqs[idx]); 88 return 0; 89 } 90 91 static int ivtv_s_audio_mode(struct cx2341x_handler *cxhdl, u32 val) 92 { 93 struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl); 94 95 itv->dualwatch_stereo_mode = val; 96 return 0; 97 } 98 99 const struct cx2341x_handler_ops ivtv_cxhdl_ops = { 100 .s_audio_mode = ivtv_s_audio_mode, 101 .s_audio_sampling_freq = ivtv_s_audio_sampling_freq, 102 .s_video_encoding = ivtv_s_video_encoding, 103 .s_stream_vbi_fmt = ivtv_s_stream_vbi_fmt, 104 }; 105 106 int ivtv_g_pts_frame(struct ivtv *itv, s64 *pts, s64 *frame) 107 { 108 u32 data[CX2341X_MBOX_MAX_DATA]; 109 110 if (test_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags)) { 111 *pts = (s64)((u64)itv->last_dec_timing[2] << 32) | 112 (u64)itv->last_dec_timing[1]; 113 *frame = itv->last_dec_timing[0]; 114 return 0; 115 } 116 *pts = 0; 117 *frame = 0; 118 if (atomic_read(&itv->decoding)) { 119 if (ivtv_api(itv, CX2341X_DEC_GET_TIMING_INFO, 5, data)) { 120 IVTV_DEBUG_WARN("GET_TIMING: couldn't read clock\n"); 121 return -EIO; 122 } 123 memcpy(itv->last_dec_timing, data, sizeof(itv->last_dec_timing)); 124 set_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags); 125 *pts = (s64)((u64) data[2] << 32) | (u64) data[1]; 126 *frame = data[0]; 127 /*timing->scr = (u64) (((u64) data[4] << 32) | (u64) (data[3]));*/ 128 } 129 return 0; 130 } 131 132 static int ivtv_g_volatile_ctrl(struct v4l2_ctrl *ctrl) 133 { 134 struct ivtv *itv = container_of(ctrl->handler, struct ivtv, cxhdl.hdl); 135 136 switch (ctrl->id) { 137 /* V4L2_CID_MPEG_VIDEO_DEC_PTS and V4L2_CID_MPEG_VIDEO_DEC_FRAME 138 control cluster */ 139 case V4L2_CID_MPEG_VIDEO_DEC_PTS: 140 return ivtv_g_pts_frame(itv, itv->ctrl_pts->p_new.p_s64, 141 itv->ctrl_frame->p_new.p_s64); 142 } 143 return 0; 144 } 145 146 static int ivtv_s_ctrl(struct v4l2_ctrl *ctrl) 147 { 148 struct ivtv *itv = container_of(ctrl->handler, struct ivtv, cxhdl.hdl); 149 150 switch (ctrl->id) { 151 /* V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK and MULTILINGUAL_PLAYBACK 152 control cluster */ 153 case V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK: 154 itv->audio_stereo_mode = itv->ctrl_audio_playback->val - 1; 155 itv->audio_bilingual_mode = itv->ctrl_audio_multilingual_playback->val - 1; 156 ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode); 157 break; 158 } 159 return 0; 160 } 161 162 const struct v4l2_ctrl_ops ivtv_hdl_out_ops = { 163 .s_ctrl = ivtv_s_ctrl, 164 .g_volatile_ctrl = ivtv_g_volatile_ctrl, 165 }; 166