From: Mike Isely Date: Mon, 26 Nov 2007 05:07:26 +0000 (-0300) Subject: V4L/DVB (6698): pvrusb2: Implement signal routing schemes X-Git-Tag: v2.6.25-rc1~1235^2~281 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f5174af201f2e22c101bb02d06343e4bc5f056de;p=linux-2.6 V4L/DVB (6698): pvrusb2: Implement signal routing schemes The exact routing of video and audio signals within a device is a device-specific attribute. Hauppauge devices do it one way; other types of device may route things differently. Unfortunately it is rather impractical to define chip-specific routing at the device attribute level, so instead what happens here is that "schemes" are defined. Each chip level interface implements its part of a given scheme and the scheme as a whole is made into a device specific attribute controlled via a table entry in pvrusb2-devattr.c. The only scheme defined here is for Hauppauge devices, but clearly this opens the door for other possibilities to follow. Signed-off-by: Mike Isely Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/pvrusb2/pvrusb2-audio.c b/drivers/media/video/pvrusb2/pvrusb2-audio.c index 379645e481..9a7c8e9c3e 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-audio.c +++ b/drivers/media/video/pvrusb2/pvrusb2-audio.c @@ -35,34 +35,58 @@ struct pvr2_msp3400_handler { }; + +struct routing_scheme { + const int *def; + unsigned int cnt; +}; + +static const int routing_scheme0[] = { + [PVR2_CVAL_INPUT_TV] = MSP_INPUT_DEFAULT, + [PVR2_CVAL_INPUT_RADIO] = MSP_INPUT(MSP_IN_SCART2, + MSP_IN_TUNER1, + MSP_DSP_IN_SCART, + MSP_DSP_IN_SCART), + [PVR2_CVAL_INPUT_COMPOSITE] = MSP_INPUT(MSP_IN_SCART1, + MSP_IN_TUNER1, + MSP_DSP_IN_SCART, + MSP_DSP_IN_SCART), + [PVR2_CVAL_INPUT_SVIDEO] = MSP_INPUT(MSP_IN_SCART1, + MSP_IN_TUNER1, + MSP_DSP_IN_SCART, + MSP_DSP_IN_SCART), +}; + +static const struct routing_scheme routing_schemes[] = { + [PVR2_ROUTING_SCHEME_HAUPPAUGE] = { + .def = routing_scheme0, + .cnt = ARRAY_SIZE(routing_scheme0), + }, +}; + /* This function selects the correct audio input source */ static void set_stereo(struct pvr2_msp3400_handler *ctxt) { struct pvr2_hdw *hdw = ctxt->hdw; struct v4l2_routing route; + const struct routing_scheme *sp; + unsigned int sid = hdw->hdw_desc->signal_routing_scheme; pvr2_trace(PVR2_TRACE_CHIPS,"i2c msp3400 v4l2 set_stereo"); - route.input = MSP_INPUT_DEFAULT; - route.output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1); - switch (hdw->input_val) { - case PVR2_CVAL_INPUT_TV: - break; - case PVR2_CVAL_INPUT_RADIO: - /* Assume that msp34xx also handle FM decoding, in which case - we're still using the tuner. */ - /* HV: actually it is more likely to be the SCART2 input if - the ivtv experience is any indication. */ - route.input = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1, - MSP_DSP_IN_SCART, MSP_DSP_IN_SCART); - break; - case PVR2_CVAL_INPUT_SVIDEO: - case PVR2_CVAL_INPUT_COMPOSITE: - /* SCART 1 input */ - route.input = MSP_INPUT(MSP_IN_SCART1, MSP_IN_TUNER1, - MSP_DSP_IN_SCART, MSP_DSP_IN_SCART); - break; + if ((sid < ARRAY_SIZE(routing_schemes)) && + ((sp = routing_schemes + sid) != 0) && + (hdw->input_val >= 0) && + (hdw->input_val < sp->cnt)) { + route.input = sp->def[hdw->input_val]; + } else { + pvr2_trace(PVR2_TRACE_ERROR_LEGS, + "*** WARNING *** i2c msp3400 v4l2 set_stereo:" + " Invalid routing scheme (%u) and/or input (%d)", + sid,hdw->input_val); + return; } + route.output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1); pvr2_i2c_client_cmd(ctxt->client,VIDIOC_INT_S_AUDIO_ROUTING,&route); } diff --git a/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c b/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c index 2cca817e41..b6714c41ea 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c +++ b/drivers/media/video/pvrusb2/pvrusb2-cx2584x-v4l.c @@ -49,34 +49,65 @@ struct pvr2_v4l_cx2584x { }; +struct routing_scheme_item { + int vid; + int aud; +}; + +struct routing_scheme { + const struct routing_scheme_item *def; + unsigned int cnt; +}; + +static const struct routing_scheme_item routing_scheme0[] = { + [PVR2_CVAL_INPUT_TV] = { + .vid = CX25840_COMPOSITE7, + .aud = CX25840_AUDIO8, + }, + [PVR2_CVAL_INPUT_RADIO] = { /* Treat the same as composite */ + .vid = CX25840_COMPOSITE3, + .aud = CX25840_AUDIO_SERIAL, + }, + [PVR2_CVAL_INPUT_COMPOSITE] = { + .vid = CX25840_COMPOSITE3, + .aud = CX25840_AUDIO_SERIAL, + }, + [PVR2_CVAL_INPUT_SVIDEO] = { + .vid = CX25840_SVIDEO1, + .aud = CX25840_AUDIO_SERIAL, + }, +}; + +static const struct routing_scheme routing_schemes[] = { + [PVR2_ROUTING_SCHEME_HAUPPAUGE] = { + .def = routing_scheme0, + .cnt = ARRAY_SIZE(routing_scheme0), + }, +}; + static void set_input(struct pvr2_v4l_cx2584x *ctxt) { struct pvr2_hdw *hdw = ctxt->hdw; struct v4l2_routing route; enum cx25840_video_input vid_input; enum cx25840_audio_input aud_input; + const struct routing_scheme *sp; + unsigned int sid = hdw->hdw_desc->signal_routing_scheme; memset(&route,0,sizeof(route)); - switch(hdw->input_val) { - case PVR2_CVAL_INPUT_TV: - vid_input = CX25840_COMPOSITE7; - aud_input = CX25840_AUDIO8; - break; - case PVR2_CVAL_INPUT_RADIO: // Treat same as composite - case PVR2_CVAL_INPUT_COMPOSITE: - vid_input = CX25840_COMPOSITE3; - aud_input = CX25840_AUDIO_SERIAL; - break; - case PVR2_CVAL_INPUT_SVIDEO: - vid_input = CX25840_SVIDEO1; - aud_input = CX25840_AUDIO_SERIAL; - break; - default: - // Just set it to be composite input for now... - vid_input = CX25840_COMPOSITE3; - aud_input = CX25840_AUDIO_SERIAL; - break; + if ((sid < ARRAY_SIZE(routing_schemes)) && + ((sp = routing_schemes + sid) != 0) && + (hdw->input_val >= 0) && + (hdw->input_val < sp->cnt)) { + vid_input = sp->def[hdw->input_val].vid; + aud_input = sp->def[hdw->input_val].aud; + } else { + pvr2_trace(PVR2_TRACE_ERROR_LEGS, + "*** WARNING *** i2c cx2584x set_input:" + " Invalid routing scheme (%u) and/or input (%d)", + sid,hdw->input_val); + return; } pvr2_trace(PVR2_TRACE_CHIPS,"i2c cx2584x set_input vid=0x%x aud=0x%x", diff --git a/drivers/media/video/pvrusb2/pvrusb2-devattr.c b/drivers/media/video/pvrusb2/pvrusb2-devattr.c index 54a401e8bb..464a13a064 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-devattr.c +++ b/drivers/media/video/pvrusb2/pvrusb2-devattr.c @@ -73,6 +73,7 @@ const struct pvr2_device_desc pvr2_device_descriptions[] = { .fx2_firmware.lst = pvr2_fw1_names_29xxx, .fx2_firmware.cnt = ARRAY_SIZE(pvr2_fw1_names_29xxx), .flag_has_hauppauge_rom = !0, + .signal_routing_scheme = PVR2_ROUTING_SCHEME_HAUPPAUGE, }, [PVR2_HDW_TYPE_24XXX] = { .description = "WinTV PVR USB2 Model Category 24xxxx", @@ -84,6 +85,7 @@ const struct pvr2_device_desc pvr2_device_descriptions[] = { .flag_has_cx25840 = !0, .flag_has_wm8775 = !0, .flag_has_hauppauge_rom = !0, + .signal_routing_scheme = PVR2_ROUTING_SCHEME_HAUPPAUGE, }, }; diff --git a/drivers/media/video/pvrusb2/pvrusb2-devattr.h b/drivers/media/video/pvrusb2/pvrusb2-devattr.h index f63c3ddb8a..05eb2c669e 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-devattr.h +++ b/drivers/media/video/pvrusb2/pvrusb2-devattr.h @@ -35,6 +35,7 @@ struct pvr2_string_table { unsigned int cnt; }; +#define PVR2_ROUTING_SCHEME_HAUPPAUGE 0 /* This describes a particular hardware type (except for the USB device ID which must live in a separate structure due to environmental @@ -55,6 +56,14 @@ struct pvr2_device_desc { was initialized from internal ROM. */ struct pvr2_string_table fx2_firmware; + /* Signal routing scheme used by device, contains one of + PVR2_ROUTING_SCHEME_XXX. Schemes have to be defined as we + encounter them. This is an arbitrary integer scheme id; its + meaning is contained entirely within the driver and is + interpreted by logic which must send commands to the chip-level + drivers (search for things which touch this field). */ + unsigned int signal_routing_scheme; + /* V4L tuner type ID to use with this device (only used if the driver could not discover the type any other way). */ int default_tuner_type; diff --git a/drivers/media/video/pvrusb2/pvrusb2-video-v4l.c b/drivers/media/video/pvrusb2/pvrusb2-video-v4l.c index 767e49022f..7c47345501 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-video-v4l.c +++ b/drivers/media/video/pvrusb2/pvrusb2-video-v4l.c @@ -49,29 +49,50 @@ struct pvr2_v4l_decoder { }; +struct routing_scheme { + const int *def; + unsigned int cnt; +}; + + +static const int routing_scheme0[] = { + [PVR2_CVAL_INPUT_TV] = SAA7115_COMPOSITE4, + /* In radio mode, we mute the video, but point at one + spot just to stay consistent */ + [PVR2_CVAL_INPUT_RADIO] = SAA7115_COMPOSITE5, + [PVR2_CVAL_INPUT_COMPOSITE] = SAA7115_COMPOSITE5, + [PVR2_CVAL_INPUT_SVIDEO] = SAA7115_SVIDEO2, +}; + +static const struct routing_scheme routing_schemes[] = { + [PVR2_ROUTING_SCHEME_HAUPPAUGE] = { + .def = routing_scheme0, + .cnt = ARRAY_SIZE(routing_scheme0), + }, +}; + static void set_input(struct pvr2_v4l_decoder *ctxt) { struct pvr2_hdw *hdw = ctxt->hdw; struct v4l2_routing route; + const struct routing_scheme *sp; + unsigned int sid = hdw->hdw_desc->signal_routing_scheme; pvr2_trace(PVR2_TRACE_CHIPS,"i2c v4l2 set_input(%d)",hdw->input_val); - switch(hdw->input_val) { - case PVR2_CVAL_INPUT_TV: - route.input = SAA7115_COMPOSITE4; - break; - case PVR2_CVAL_INPUT_COMPOSITE: - route.input = SAA7115_COMPOSITE5; - break; - case PVR2_CVAL_INPUT_SVIDEO: - route.input = SAA7115_SVIDEO2; - break; - case PVR2_CVAL_INPUT_RADIO: - // In radio mode, we mute the video, but point at one - // spot just to stay consistent - route.input = SAA7115_COMPOSITE5; - default: + + if ((sid < ARRAY_SIZE(routing_schemes)) && + ((sp = routing_schemes + sid) != 0) && + (hdw->input_val >= 0) && + (hdw->input_val < sp->cnt)) { + route.input = sp->def[hdw->input_val]; + } else { + pvr2_trace(PVR2_TRACE_ERROR_LEGS, + "*** WARNING *** i2c v4l2 set_input:" + " Invalid routing scheme (%u) and/or input (%d)", + sid,hdw->input_val); return; } + route.output = 0; pvr2_i2c_client_cmd(ctxt->client,VIDIOC_INT_S_VIDEO_ROUTING,&route); }