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_mbus_framefmt fmt; 68 69 /* fix videodecoder resolution */ 70 fmt.width = cxhdl->width / (is_mpeg1 ? 2 : 1); 71 fmt.height = cxhdl->height; 72 fmt.code = MEDIA_BUS_FMT_FIXED; 73 v4l2_subdev_call(itv->sd_video, video, s_mbus_fmt, &fmt); 74 return 0; 75 } 76 77 static int ivtv_s_audio_sampling_freq(struct cx2341x_handler *cxhdl, u32 idx) 78 { 79 static const u32 freqs[3] = { 44100, 48000, 32000 }; 80 struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl); 81 82 /* The audio clock of the digitizer must match the codec sample 83 rate otherwise you get some very strange effects. */ 84 if (idx < ARRAY_SIZE(freqs)) 85 ivtv_call_all(itv, audio, s_clock_freq, freqs[idx]); 86 return 0; 87 } 88 89 static int ivtv_s_audio_mode(struct cx2341x_handler *cxhdl, u32 val) 90 { 91 struct ivtv *itv = container_of(cxhdl, struct ivtv, cxhdl); 92 93 itv->dualwatch_stereo_mode = val; 94 return 0; 95 } 96 97 struct cx2341x_handler_ops ivtv_cxhdl_ops = { 98 .s_audio_mode = ivtv_s_audio_mode, 99 .s_audio_sampling_freq = ivtv_s_audio_sampling_freq, 100 .s_video_encoding = ivtv_s_video_encoding, 101 .s_stream_vbi_fmt = ivtv_s_stream_vbi_fmt, 102 }; 103 104 int ivtv_g_pts_frame(struct ivtv *itv, s64 *pts, s64 *frame) 105 { 106 u32 data[CX2341X_MBOX_MAX_DATA]; 107 108 if (test_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags)) { 109 *pts = (s64)((u64)itv->last_dec_timing[2] << 32) | 110 (u64)itv->last_dec_timing[1]; 111 *frame = itv->last_dec_timing[0]; 112 return 0; 113 } 114 *pts = 0; 115 *frame = 0; 116 if (atomic_read(&itv->decoding)) { 117 if (ivtv_api(itv, CX2341X_DEC_GET_TIMING_INFO, 5, data)) { 118 IVTV_DEBUG_WARN("GET_TIMING: couldn't read clock\n"); 119 return -EIO; 120 } 121 memcpy(itv->last_dec_timing, data, sizeof(itv->last_dec_timing)); 122 set_bit(IVTV_F_I_VALID_DEC_TIMINGS, &itv->i_flags); 123 *pts = (s64)((u64) data[2] << 32) | (u64) data[1]; 124 *frame = data[0]; 125 /*timing->scr = (u64) (((u64) data[4] << 32) | (u64) (data[3]));*/ 126 } 127 return 0; 128 } 129 130 static int ivtv_g_volatile_ctrl(struct v4l2_ctrl *ctrl) 131 { 132 struct ivtv *itv = container_of(ctrl->handler, struct ivtv, cxhdl.hdl); 133 134 switch (ctrl->id) { 135 /* V4L2_CID_MPEG_VIDEO_DEC_PTS and V4L2_CID_MPEG_VIDEO_DEC_FRAME 136 control cluster */ 137 case V4L2_CID_MPEG_VIDEO_DEC_PTS: 138 return ivtv_g_pts_frame(itv, itv->ctrl_pts->p_new.p_s64, 139 itv->ctrl_frame->p_new.p_s64); 140 } 141 return 0; 142 } 143 144 static int ivtv_s_ctrl(struct v4l2_ctrl *ctrl) 145 { 146 struct ivtv *itv = container_of(ctrl->handler, struct ivtv, cxhdl.hdl); 147 148 switch (ctrl->id) { 149 /* V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK and MULTILINGUAL_PLAYBACK 150 control cluster */ 151 case V4L2_CID_MPEG_AUDIO_DEC_PLAYBACK: 152 itv->audio_stereo_mode = itv->ctrl_audio_playback->val - 1; 153 itv->audio_bilingual_mode = itv->ctrl_audio_multilingual_playback->val - 1; 154 ivtv_vapi(itv, CX2341X_DEC_SET_AUDIO_MODE, 2, itv->audio_bilingual_mode, itv->audio_stereo_mode); 155 break; 156 } 157 return 0; 158 } 159 160 const struct v4l2_ctrl_ops ivtv_hdl_out_ops = { 161 .s_ctrl = ivtv_s_ctrl, 162 .g_volatile_ctrl = ivtv_g_volatile_ctrl, 163 }; 164