1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * 4 * Copyright (C) 2005 Mike Isely <isely@pobox.com> 5 * Copyright (C) 2004 Aurelien Alleaume <slts@free.fr> 6 */ 7 8 /* 9 10 This source file is specifically designed to interface with the 11 v4l-dvb cs53l32a module. 12 13 */ 14 15 #include "pvrusb2-cs53l32a.h" 16 17 18 #include "pvrusb2-hdw-internal.h" 19 #include "pvrusb2-debug.h" 20 #include <linux/videodev2.h> 21 #include <media/v4l2-common.h> 22 #include <linux/errno.h> 23 24 struct routing_scheme { 25 const int *def; 26 unsigned int cnt; 27 }; 28 29 30 static const int routing_scheme1[] = { 31 [PVR2_CVAL_INPUT_TV] = 2, /* 1 or 2 seems to work here */ 32 [PVR2_CVAL_INPUT_RADIO] = 2, 33 [PVR2_CVAL_INPUT_COMPOSITE] = 0, 34 [PVR2_CVAL_INPUT_SVIDEO] = 0, 35 }; 36 37 static const struct routing_scheme routing_def1 = { 38 .def = routing_scheme1, 39 .cnt = ARRAY_SIZE(routing_scheme1), 40 }; 41 42 static const struct routing_scheme *routing_schemes[] = { 43 [PVR2_ROUTING_SCHEME_ONAIR] = &routing_def1, 44 }; 45 46 47 void pvr2_cs53l32a_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd) 48 { 49 if (hdw->input_dirty || hdw->force_dirty) { 50 const struct routing_scheme *sp; 51 unsigned int sid = hdw->hdw_desc->signal_routing_scheme; 52 u32 input; 53 pvr2_trace(PVR2_TRACE_CHIPS, "subdev v4l2 set_input(%d)", 54 hdw->input_val); 55 sp = (sid < ARRAY_SIZE(routing_schemes)) ? 56 routing_schemes[sid] : NULL; 57 if ((sp == NULL) || 58 (hdw->input_val < 0) || 59 (hdw->input_val >= sp->cnt)) { 60 pvr2_trace(PVR2_TRACE_ERROR_LEGS, 61 "*** WARNING *** subdev v4l2 set_input: Invalid routing scheme (%u) and/or input (%d)", 62 sid, hdw->input_val); 63 return; 64 } 65 input = sp->def[hdw->input_val]; 66 sd->ops->audio->s_routing(sd, input, 0, 0); 67 } 68 } 69