diff options
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-audio.c')
-rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-audio.c | 142 |
1 files changed, 22 insertions, 120 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-audio.c b/drivers/media/video/pvrusb2/pvrusb2-audio.c index cdedaa55f152..ccf2a3c7ad06 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-audio.c +++ b/drivers/media/video/pvrusb2/pvrusb2-audio.c @@ -26,14 +26,6 @@ #include <media/msp3400.h> #include <media/v4l2-common.h> -struct pvr2_msp3400_handler { - struct pvr2_hdw *hdw; - struct pvr2_i2c_client *client; - struct pvr2_i2c_handler i2c_handler; - unsigned long stale_mask; -}; - - struct routing_scheme { const int *def; @@ -63,123 +55,33 @@ static const struct routing_scheme routing_schemes[] = { }, }; -/* 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"); - - if ((sid < ARRAY_SIZE(routing_schemes)) && - ((sp = routing_schemes + sid) != NULL) && - (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); -} - - -static int check_stereo(struct pvr2_msp3400_handler *ctxt) +void pvr2_msp3400_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd) { - struct pvr2_hdw *hdw = ctxt->hdw; - return hdw->input_dirty; -} - - -struct pvr2_msp3400_ops { - void (*update)(struct pvr2_msp3400_handler *); - int (*check)(struct pvr2_msp3400_handler *); -}; - - -static const struct pvr2_msp3400_ops msp3400_ops[] = { - { .update = set_stereo, .check = check_stereo}, -}; - - -static int msp3400_check(struct pvr2_msp3400_handler *ctxt) -{ - unsigned long msk; - unsigned int idx; - - for (idx = 0; idx < ARRAY_SIZE(msp3400_ops); idx++) { - msk = 1 << idx; - if (ctxt->stale_mask & msk) continue; - if (msp3400_ops[idx].check(ctxt)) { - ctxt->stale_mask |= msk; + if (hdw->input_dirty || hdw->force_dirty) { + struct v4l2_routing route; + const struct routing_scheme *sp; + unsigned int sid = hdw->hdw_desc->signal_routing_scheme; + + pvr2_trace(PVR2_TRACE_CHIPS, "subdev msp3400 v4l2 set_stereo"); + + if ((sid < ARRAY_SIZE(routing_schemes)) && + ((sp = routing_schemes + sid) != NULL) && + (hdw->input_val >= 0) && + (hdw->input_val < sp->cnt)) { + route.input = sp->def[hdw->input_val]; + } else { + pvr2_trace(PVR2_TRACE_ERROR_LEGS, + "*** WARNING *** subdev msp3400 set_input:" + " Invalid routing scheme (%u)" + " and/or input (%d)", + sid, hdw->input_val); + return; } + route.output = MSP_OUTPUT(MSP_SC_IN_DSP_SCART1); + sd->ops->audio->s_routing(sd, &route); } - return ctxt->stale_mask != 0; } - -static void msp3400_update(struct pvr2_msp3400_handler *ctxt) -{ - unsigned long msk; - unsigned int idx; - - for (idx = 0; idx < ARRAY_SIZE(msp3400_ops); idx++) { - msk = 1 << idx; - if (!(ctxt->stale_mask & msk)) continue; - ctxt->stale_mask &= ~msk; - msp3400_ops[idx].update(ctxt); - } -} - - -static void pvr2_msp3400_detach(struct pvr2_msp3400_handler *ctxt) -{ - ctxt->client->handler = NULL; - kfree(ctxt); -} - - -static unsigned int pvr2_msp3400_describe(struct pvr2_msp3400_handler *ctxt, - char *buf,unsigned int cnt) -{ - return scnprintf(buf,cnt,"handler: pvrusb2-audio v4l2"); -} - - -static const struct pvr2_i2c_handler_functions msp3400_funcs = { - .detach = (void (*)(void *))pvr2_msp3400_detach, - .check = (int (*)(void *))msp3400_check, - .update = (void (*)(void *))msp3400_update, - .describe = (unsigned int (*)(void *,char *,unsigned int))pvr2_msp3400_describe, -}; - - -int pvr2_i2c_msp3400_setup(struct pvr2_hdw *hdw,struct pvr2_i2c_client *cp) -{ - struct pvr2_msp3400_handler *ctxt; - if (cp->handler) return 0; - - ctxt = kzalloc(sizeof(*ctxt),GFP_KERNEL); - if (!ctxt) return 0; - - ctxt->i2c_handler.func_data = ctxt; - ctxt->i2c_handler.func_table = &msp3400_funcs; - ctxt->client = cp; - ctxt->hdw = hdw; - ctxt->stale_mask = (1 << ARRAY_SIZE(msp3400_ops)) - 1; - cp->handler = &ctxt->i2c_handler; - pvr2_trace(PVR2_TRACE_CHIPS,"i2c 0x%x msp3400 V4L2 handler set up", - cp->client->addr); - return !0; -} - - /* Stuff for Emacs to see, in order to encourage consistent editing style: *** Local Variables: *** |