diff options
Diffstat (limited to 'drivers/media/video')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-context.c | 69 | ||||
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-context.h | 3 | ||||
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-dvb.c | 47 | ||||
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h | 4 | ||||
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.c | 132 | ||||
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.h | 13 | ||||
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-v4l2.c | 52 |
7 files changed, 246 insertions, 74 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-context.c b/drivers/media/video/pvrusb2/pvrusb2-context.c index a2ce022c515..b5db6a5bab3 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-context.c +++ b/drivers/media/video/pvrusb2/pvrusb2-context.c @@ -245,6 +245,22 @@ struct pvr2_context *pvr2_context_create( } +static void pvr2_context_reset_input_limits(struct pvr2_context *mp) +{ + unsigned int tmsk,mmsk; + struct pvr2_channel *cp; + struct pvr2_hdw *hdw = mp->hdw; + mmsk = pvr2_hdw_get_input_available(hdw); + tmsk = mmsk; + for (cp = mp->mc_first; cp; cp = cp->mc_next) { + if (!cp->input_mask) continue; + tmsk &= cp->input_mask; + } + pvr2_hdw_set_input_allowed(hdw,mmsk,tmsk); + pvr2_hdw_commit_ctl(hdw); +} + + static void pvr2_context_enter(struct pvr2_context *mp) { mutex_lock(&mp->mutex); @@ -300,7 +316,9 @@ void pvr2_channel_done(struct pvr2_channel *cp) { struct pvr2_context *mp = cp->mc_head; pvr2_context_enter(mp); + cp->input_mask = 0; pvr2_channel_disclaim_stream(cp); + pvr2_context_reset_input_limits(mp); if (cp->mc_next) { cp->mc_next->mc_prev = cp->mc_prev; } else { @@ -316,6 +334,57 @@ void pvr2_channel_done(struct pvr2_channel *cp) } +int pvr2_channel_limit_inputs(struct pvr2_channel *cp,unsigned int cmsk) +{ + unsigned int tmsk,mmsk; + int ret = 0; + struct pvr2_channel *p2; + struct pvr2_hdw *hdw = cp->hdw; + + mmsk = pvr2_hdw_get_input_available(hdw); + cmsk &= mmsk; + if (cmsk == cp->input_mask) { + /* No change; nothing to do */ + return 0; + } + + pvr2_context_enter(cp->mc_head); + do { + if (!cmsk) { + cp->input_mask = 0; + pvr2_context_reset_input_limits(cp->mc_head); + break; + } + tmsk = mmsk; + for (p2 = cp->mc_head->mc_first; p2; p2 = p2->mc_next) { + if (p2 == cp) continue; + if (!p2->input_mask) continue; + tmsk &= p2->input_mask; + } + if (!(tmsk & cmsk)) { + ret = -EPERM; + break; + } + tmsk &= cmsk; + if ((ret = pvr2_hdw_set_input_allowed(hdw,mmsk,tmsk)) != 0) { + /* Internal failure changing allowed list; probably + should not happen, but react if it does. */ + break; + } + cp->input_mask = cmsk; + pvr2_hdw_commit_ctl(hdw); + } while (0); + pvr2_context_exit(cp->mc_head); + return ret; +} + + +unsigned int pvr2_channel_get_limited_inputs(struct pvr2_channel *cp) +{ + return cp->input_mask; +} + + int pvr2_channel_claim_stream(struct pvr2_channel *cp, struct pvr2_context_stream *sp) { diff --git a/drivers/media/video/pvrusb2/pvrusb2-context.h b/drivers/media/video/pvrusb2/pvrusb2-context.h index 6fb6ab02285..745e270233c 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-context.h +++ b/drivers/media/video/pvrusb2/pvrusb2-context.h @@ -62,6 +62,7 @@ struct pvr2_channel { struct pvr2_channel *mc_prev; struct pvr2_context_stream *stream; struct pvr2_hdw *hdw; + unsigned int input_mask; void (*check_func)(struct pvr2_channel *); }; @@ -72,6 +73,8 @@ void pvr2_context_disconnect(struct pvr2_context *); void pvr2_channel_init(struct pvr2_channel *,struct pvr2_context *); void pvr2_channel_done(struct pvr2_channel *); +int pvr2_channel_limit_inputs(struct pvr2_channel *,unsigned int); +unsigned int pvr2_channel_get_limited_inputs(struct pvr2_channel *); int pvr2_channel_claim_stream(struct pvr2_channel *, struct pvr2_context_stream *); struct pvr2_ioread *pvr2_channel_create_mpeg_stream( diff --git a/drivers/media/video/pvrusb2/pvrusb2-dvb.c b/drivers/media/video/pvrusb2/pvrusb2-dvb.c index c20eef0f077..2e64f98d124 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-dvb.c +++ b/drivers/media/video/pvrusb2/pvrusb2-dvb.c @@ -244,13 +244,10 @@ static int pvr2_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed) static int pvr2_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire) { - /* TO DO: This function will call into the core and request for - * input to be set to 'dtv' if (acquire) and if it isn't set already. - * - * If (!acquire) then we should do nothing -- don't switch inputs - * again unless the analog side of the driver requests the bus. - */ - return 0; + struct pvr2_dvb_adapter *adap = fe->dvb->priv; + return pvr2_channel_limit_inputs( + &adap->channel, + (acquire ? (1 << PVR2_CVAL_INPUT_DTV) : 0)); } static int pvr2_dvb_adapter_init(struct pvr2_dvb_adapter *adap) @@ -320,32 +317,26 @@ static int pvr2_dvb_frontend_init(struct pvr2_dvb_adapter *adap) { struct pvr2_hdw *hdw = adap->channel.hdw; struct pvr2_dvb_props *dvb_props = hdw->hdw_desc->dvb_props; - int ret; + int ret = 0; if (dvb_props == NULL) { err("fe_props not defined!"); return -EINVAL; } - /* FIXME: This code should be moved into the core, - * and should only be called if we don't already have - * control of the bus. - * - * We can't call "pvr2_dvb_bus_ctrl(adap->fe, 1)" from here, - * because adap->fe isn't defined yet. - */ - ret = pvr2_ctrl_set_value(pvr2_hdw_get_ctrl_by_id(hdw, - PVR2_CID_INPUT), - PVR2_CVAL_INPUT_DTV); - if (ret != 0) + ret = pvr2_channel_limit_inputs( + &adap->channel, + (1 << PVR2_CVAL_INPUT_DTV)); + if (ret) { + err("failed to grab control of dtv input (code=%d)", + ret); return ret; - - pvr2_hdw_commit_ctl(hdw); - + } if (dvb_props->frontend_attach == NULL) { err("frontend_attach not defined!"); - return -EINVAL; + ret = -EINVAL; + goto done; } if ((dvb_props->frontend_attach(adap) == 0) && (adap->fe)) { @@ -354,7 +345,8 @@ static int pvr2_dvb_frontend_init(struct pvr2_dvb_adapter *adap) err("frontend registration failed!"); dvb_frontend_detach(adap->fe); adap->fe = NULL; - return -ENODEV; + ret = -ENODEV; + goto done; } if (dvb_props->tuner_attach) @@ -368,10 +360,13 @@ static int pvr2_dvb_frontend_init(struct pvr2_dvb_adapter *adap) } else { err("no frontend was attached!"); - return -ENODEV; + ret = -ENODEV; + return ret; } - return 0; + done: + pvr2_channel_limit_inputs(&adap->channel, 0); + return ret; } static int pvr2_dvb_frontend_exit(struct pvr2_dvb_adapter *adap) diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h index a67dcf84b59..a3fe251d6fd 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw-internal.h @@ -336,8 +336,10 @@ struct pvr2_hdw { int v4l_minor_number_vbi; int v4l_minor_number_radio; - /* Bit mask of PVR2_CVAL_INPUT choices which are valid */ + /* Bit mask of PVR2_CVAL_INPUT choices which are valid for the hardware */ unsigned int input_avail_mask; + /* Bit mask of PVR2_CVAL_INPUT choices which are currenly allowed */ + unsigned int input_allowed_mask; /* Location of eeprom or a negative number if none */ int eeprom_addr; diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 63d0af759ed..72e9056557b 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -249,6 +249,7 @@ static const struct pvr2_fx2cmd_descdef pvr2_fx2cmd_desc[] = { }; +static int pvr2_hdw_set_input(struct pvr2_hdw *hdw,int v); static void pvr2_hdw_state_sched(struct pvr2_hdw *); static int pvr2_hdw_state_eval(struct pvr2_hdw *); static void pvr2_hdw_set_cur_freq(struct pvr2_hdw *,unsigned long); @@ -404,30 +405,12 @@ static int ctrl_get_input(struct pvr2_ctrl *cptr,int *vp) static int ctrl_check_input(struct pvr2_ctrl *cptr,int v) { - return ((1 << v) & cptr->hdw->input_avail_mask) != 0; + return ((1 << v) & cptr->hdw->input_allowed_mask) != 0; } static int ctrl_set_input(struct pvr2_ctrl *cptr,int m,int v) { - struct pvr2_hdw *hdw = cptr->hdw; - - if (hdw->input_val != v) { - hdw->input_val = v; - hdw->input_dirty = !0; - } - - /* Handle side effects - if we switch to a mode that needs the RF - tuner, then select the right frequency choice as well and mark - it dirty. */ - if (hdw->input_val == PVR2_CVAL_INPUT_RADIO) { - hdw->freqSelector = 0; - hdw->freqDirty = !0; - } else if ((hdw->input_val == PVR2_CVAL_INPUT_TV) || - (hdw->input_val == PVR2_CVAL_INPUT_DTV)) { - hdw->freqSelector = 1; - hdw->freqDirty = !0; - } - return 0; + return pvr2_hdw_set_input(cptr->hdw,v); } static int ctrl_isdirty_input(struct pvr2_ctrl *cptr) @@ -1916,6 +1899,7 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf, if (hdw_desc->flag_has_composite) m |= 1 << PVR2_CVAL_INPUT_COMPOSITE; if (hdw_desc->flag_has_fmradio) m |= 1 << PVR2_CVAL_INPUT_RADIO; hdw->input_avail_mask = m; + hdw->input_allowed_mask = hdw->input_avail_mask; /* If not a hybrid device, pathway_state never changes. So initialize it here to what it should forever be. */ @@ -3948,6 +3932,24 @@ static int pvr2_hdw_state_update(struct pvr2_hdw *hdw) } +static unsigned int print_input_mask(unsigned int msk, + char *buf,unsigned int acnt) +{ + unsigned int idx,ccnt; + unsigned int tcnt = 0; + for (idx = 0; idx < ARRAY_SIZE(control_values_input); idx++) { + if (!((1 << idx) & msk)) continue; + ccnt = scnprintf(buf+tcnt, + acnt-tcnt, + "%s%s", + (tcnt ? ", " : ""), + control_values_input[idx]); + tcnt += ccnt; + } + return tcnt; +} + + static const char *pvr2_pathway_state_name(int id) { switch (id) { @@ -4016,6 +4018,28 @@ static unsigned int pvr2_hdw_report_unlocked(struct pvr2_hdw *hdw,int which, "state: %s", pvr2_get_state_name(hdw->master_state)); case 4: { + unsigned int tcnt = 0; + unsigned int ccnt; + + ccnt = scnprintf(buf, + acnt, + "Hardware supported inputs: "); + tcnt += ccnt; + tcnt += print_input_mask(hdw->input_avail_mask, + buf+tcnt, + acnt-tcnt); + if (hdw->input_avail_mask != hdw->input_allowed_mask) { + ccnt = scnprintf(buf+tcnt, + acnt-tcnt, + "; allowed inputs: "); + tcnt += ccnt; + tcnt += print_input_mask(hdw->input_allowed_mask, + buf+tcnt, + acnt-tcnt); + } + return tcnt; + } + case 5: { struct pvr2_stream_stats stats; if (!hdw->vid_stream) break; pvr2_stream_get_stats(hdw->vid_stream, @@ -4210,6 +4234,74 @@ unsigned int pvr2_hdw_get_input_available(struct pvr2_hdw *hdw) } +unsigned int pvr2_hdw_get_input_allowed(struct pvr2_hdw *hdw) +{ + return hdw->input_allowed_mask; +} + + +static int pvr2_hdw_set_input(struct pvr2_hdw *hdw,int v) +{ + if (hdw->input_val != v) { + hdw->input_val = v; + hdw->input_dirty = !0; + } + + /* Handle side effects - if we switch to a mode that needs the RF + tuner, then select the right frequency choice as well and mark + it dirty. */ + if (hdw->input_val == PVR2_CVAL_INPUT_RADIO) { + hdw->freqSelector = 0; + hdw->freqDirty = !0; + } else if ((hdw->input_val == PVR2_CVAL_INPUT_TV) || + (hdw->input_val == PVR2_CVAL_INPUT_DTV)) { + hdw->freqSelector = 1; + hdw->freqDirty = !0; + } + return 0; +} + + +int pvr2_hdw_set_input_allowed(struct pvr2_hdw *hdw, + unsigned int change_mask, + unsigned int change_val) +{ + int ret = 0; + unsigned int nv,m,idx; + LOCK_TAKE(hdw->big_lock); + do { + nv = hdw->input_allowed_mask & ~change_mask; + nv |= (change_val & change_mask); + nv &= hdw->input_avail_mask; + if (!nv) { + /* No legal modes left; return error instead. */ + ret = -EPERM; + break; + } + hdw->input_allowed_mask = nv; + if ((1 << hdw->input_val) & hdw->input_allowed_mask) { + /* Current mode is still in the allowed mask, so + we're done. */ + break; + } + /* Select and switch to a mode that is still in the allowed + mask */ + if (!hdw->input_allowed_mask) { + /* Nothing legal; give up */ + break; + } + m = hdw->input_allowed_mask; + for (idx = 0; idx < (sizeof(m) << 3); idx++) { + if (!((1 << idx) & m)) continue; + pvr2_hdw_set_input(hdw,idx); + break; + } + } while (0); + LOCK_GIVE(hdw->big_lock); + return ret; +} + + /* Find I2C address of eeprom */ static int pvr2_hdw_get_eeprom_addr(struct pvr2_hdw *hdw) { diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.h b/drivers/media/video/pvrusb2/pvrusb2-hdw.h index 74c2503f8e3..20295e0c199 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.h +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.h @@ -149,6 +149,19 @@ int pvr2_hdw_commit_ctl(struct pvr2_hdw *); * will be according to PVR_CVAL_INPUT_xxxx definitions. */ unsigned int pvr2_hdw_get_input_available(struct pvr2_hdw *); +/* Return a bit mask of allowed input selections for this device. Mask bits + * will be according to PVR_CVAL_INPUT_xxxx definitions. */ +unsigned int pvr2_hdw_get_input_allowed(struct pvr2_hdw *); + +/* Change the set of allowed input selections for this device. Both + change_mask and change_valu are mask bits according to + PVR_CVAL_INPUT_xxxx definitions. The change_mask parameter indicate + which settings are being changed and the change_val parameter indicates + whether corresponding settings are being set or cleared. */ +int pvr2_hdw_set_input_allowed(struct pvr2_hdw *, + unsigned int change_mask, + unsigned int change_val); + /* Return name for this driver instance */ const char *pvr2_hdw_get_driver_name(struct pvr2_hdw *); diff --git a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c index 249d7488e48..b415141b285 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-v4l2.c +++ b/drivers/media/video/pvrusb2/pvrusb2-v4l2.c @@ -57,7 +57,6 @@ struct pvr2_v4l2_fh { struct pvr2_v4l2_fh *vprev; wait_queue_head_t wait_data; int fw_mode_flag; - int prev_input_val; }; struct pvr2_v4l2 { @@ -900,20 +899,6 @@ static int pvr2_v4l2_release(struct inode *inode, struct file *file) v4l2_prio_close(&vp->prio, &fhp->prio); file->private_data = NULL; - /* Restore the previous input selection, if it makes sense - to do so. */ - if (fhp->dev_info->v4l_type == VFL_TYPE_RADIO) { - struct pvr2_ctrl *cp; - int pval; - cp = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT); - pvr2_ctrl_get_value(cp,&pval); - /* Only restore if we're still selecting the radio */ - if (pval == PVR2_CVAL_INPUT_RADIO) { - pvr2_ctrl_set_value(cp,fhp->prev_input_val); - pvr2_hdw_commit_ctl(hdw); - } - } - if (fhp->vnext) { fhp->vnext->vprev = fhp->vprev; } else { @@ -944,6 +929,8 @@ static int pvr2_v4l2_open(struct inode *inode, struct file *file) struct pvr2_v4l2_fh *fhp; struct pvr2_v4l2 *vp; struct pvr2_hdw *hdw; + unsigned int input_mask = 0; + int ret = 0; dip = container_of(video_devdata(file),struct pvr2_v4l2_dev,devbase); @@ -969,6 +956,29 @@ static int pvr2_v4l2_open(struct inode *inode, struct file *file) pvr2_trace(PVR2_TRACE_STRUCT,"Creating pvr_v4l2_fh id=%p",fhp); pvr2_channel_init(&fhp->channel,vp->channel.mc_head); + if (dip->v4l_type == VFL_TYPE_RADIO) { + /* Opening device as a radio, legal input selection subset + is just the radio. */ + input_mask = (1 << PVR2_CVAL_INPUT_RADIO); + } else { + /* Opening the main V4L device, legal input selection + subset includes all analog inputs. */ + input_mask = ((1 << PVR2_CVAL_INPUT_RADIO) | + (1 << PVR2_CVAL_INPUT_TV) | + (1 << PVR2_CVAL_INPUT_COMPOSITE) | + (1 << PVR2_CVAL_INPUT_SVIDEO)); + } + ret = pvr2_channel_limit_inputs(&fhp->channel,input_mask); + if (ret) { + pvr2_channel_done(&fhp->channel); + pvr2_trace(PVR2_TRACE_STRUCT, + "Destroying pvr_v4l2_fh id=%p (input mask error)", + fhp); + + kfree(fhp); + return ret; + } + fhp->vnext = NULL; fhp->vprev = vp->vlast; if (vp->vlast) { @@ -979,18 +989,6 @@ static int pvr2_v4l2_open(struct inode *inode, struct file *file) vp->vlast = fhp; fhp->vhead = vp; - /* Opening the /dev/radioX device implies a mode switch. - So execute that here. Note that you can get the - IDENTICAL effect merely by opening the normal video - device and setting the input appropriately. */ - if (dip->v4l_type == VFL_TYPE_RADIO) { - struct pvr2_ctrl *cp; - cp = pvr2_hdw_get_ctrl_by_id(hdw,PVR2_CID_INPUT); - pvr2_ctrl_get_value(cp,&fhp->prev_input_val); - pvr2_ctrl_set_value(cp,PVR2_CVAL_INPUT_RADIO); - pvr2_hdw_commit_ctl(hdw); - } - fhp->file = file; file->private_data = fhp; v4l2_prio_open(&vp->prio,&fhp->prio); |