diff options
Diffstat (limited to 'drivers/media/video/pvrusb2/pvrusb2-hdw.c')
| -rw-r--r-- | drivers/media/video/pvrusb2/pvrusb2-hdw.c | 150 |
1 files changed, 143 insertions, 7 deletions
diff --git a/drivers/media/video/pvrusb2/pvrusb2-hdw.c b/drivers/media/video/pvrusb2/pvrusb2-hdw.c index 539fe17105e..4f6bb58ca5f 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-hdw.c +++ b/drivers/media/video/pvrusb2/pvrusb2-hdw.c @@ -264,6 +264,7 @@ static void pvr2_hdw_internal_find_stdenum(struct pvr2_hdw *hdw); static void pvr2_hdw_internal_set_std_avail(struct pvr2_hdw *hdw); static void pvr2_hdw_quiescent_timeout(unsigned long); static void pvr2_hdw_encoder_wait_timeout(unsigned long); +static void pvr2_hdw_encoder_run_timeout(unsigned long); static int pvr2_issue_simple_cmd(struct pvr2_hdw *,u32); static int pvr2_send_request_ex(struct pvr2_hdw *hdw, unsigned int timeout,int probe_fl, @@ -1236,6 +1237,14 @@ int pvr2_upload_firmware2(struct pvr2_hdw *hdw) time we configure the encoder, then we'll fully configure it. */ hdw->enc_cur_valid = 0; + /* Encoder is about to be reset so note that as far as we're + concerned now, the encoder has never been run. */ + del_timer_sync(&hdw->encoder_run_timer); + if (hdw->state_encoder_runok) { + hdw->state_encoder_runok = 0; + trace_stbit("state_encoder_runok",hdw->state_encoder_runok); + } + /* First prepare firmware loading */ ret |= pvr2_write_register(hdw, 0x0048, 0xffffffff); /*interrupt mask*/ ret |= pvr2_hdw_gpio_chg_dir(hdw,0xffffffff,0x00000088); /*gpio dir*/ @@ -1882,6 +1891,10 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf, hdw->encoder_wait_timer.data = (unsigned long)hdw; hdw->encoder_wait_timer.function = pvr2_hdw_encoder_wait_timeout; + init_timer(&hdw->encoder_run_timer); + hdw->encoder_run_timer.data = (unsigned long)hdw; + hdw->encoder_run_timer.function = pvr2_hdw_encoder_run_timeout; + hdw->master_state = PVR2_STATE_DEAD; init_waitqueue_head(&hdw->state_wait_data); @@ -2082,6 +2095,7 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf, fail: if (hdw) { del_timer_sync(&hdw->quiescent_timer); + del_timer_sync(&hdw->encoder_run_timer); del_timer_sync(&hdw->encoder_wait_timer); if (hdw->workqueue) { flush_workqueue(hdw->workqueue); @@ -2144,6 +2158,7 @@ void pvr2_hdw_destroy(struct pvr2_hdw *hdw) hdw->workqueue = NULL; } del_timer_sync(&hdw->quiescent_timer); + del_timer_sync(&hdw->encoder_run_timer); del_timer_sync(&hdw->encoder_wait_timer); if (hdw->fw_buffer) { kfree(hdw->fw_buffer); @@ -3584,23 +3599,116 @@ static int state_eval_encoder_config(struct pvr2_hdw *hdw) } +/* Return true if the encoder should not be running. */ +static int state_check_disable_encoder_run(struct pvr2_hdw *hdw) +{ + if (!hdw->state_encoder_ok) { + /* Encoder isn't healthy at the moment, so stop it. */ + return !0; + } + if (!hdw->state_pathway_ok) { + /* Mode is not understood at the moment (i.e. it wants to + change), so encoder must be stopped. */ + return !0; + } + + switch (hdw->pathway_state) { + case PVR2_PATHWAY_ANALOG: + if (!hdw->state_decoder_run) { + /* We're in analog mode and the decoder is not + running; thus the encoder should be stopped as + well. */ + return !0; + } + break; + case PVR2_PATHWAY_DIGITAL: + if (hdw->state_encoder_runok) { + /* This is a funny case. We're in digital mode so + really the encoder should be stopped. However + if it really is running, only kill it after + runok has been set. This gives a chance for the + onair quirk to function (encoder must run + briefly first, at least once, before onair + digital streaming can work). */ + return !0; + } + break; + default: + /* Unknown mode; so encoder should be stopped. */ + return !0; + } + + /* If we get here, we haven't found a reason to stop the + encoder. */ + return 0; +} + + +/* Return true if the encoder should be running. */ +static int state_check_enable_encoder_run(struct pvr2_hdw *hdw) +{ + if (!hdw->state_encoder_ok) { + /* Don't run the encoder if it isn't healthy... */ + return 0; + } + if (!hdw->state_pathway_ok) { + /* Don't run the encoder if we don't (yet) know what mode + we need to be in... */ + return 0; + } + + switch (hdw->pathway_state) { + case PVR2_PATHWAY_ANALOG: + if (hdw->state_decoder_run) { + /* In analog mode, if the decoder is running, then + run the encoder. */ + return !0; + } + break; + case PVR2_PATHWAY_DIGITAL: + if ((hdw->hdw_desc->digital_control_scheme == + PVR2_DIGITAL_SCHEME_ONAIR) && + !hdw->state_encoder_runok) { + /* This is a quirk. OnAir hardware won't stream + digital until the encoder has been run at least + once, for a minimal period of time (empiricially + measured to be 1/4 second). So if we're on + OnAir hardware and the encoder has never been + run at all, then start the encoder. Normal + state machine logic in the driver will + automatically handle the remaining bits. */ + return !0; + } + break; + default: + /* For completeness (unknown mode; encoder won't run ever) */ + break; + } + /* If we get here, then we haven't found any reason to run the + encoder, so don't run it. */ + return 0; +} + + /* Evaluate whether or not state_encoder_run can change */ static int state_eval_encoder_run(struct pvr2_hdw *hdw) { if (hdw->state_encoder_run) { + if (!state_check_disable_encoder_run(hdw)) return 0; if (hdw->state_encoder_ok) { - if (hdw->state_decoder_run && - hdw->state_pathway_ok) return 0; + del_timer_sync(&hdw->encoder_run_timer); if (pvr2_encoder_stop(hdw) < 0) return !0; } hdw->state_encoder_run = 0; } else { - if (!hdw->state_encoder_ok) return 0; - if (!hdw->state_decoder_run) return 0; - if (!hdw->state_pathway_ok) return 0; - if (hdw->pathway_state != PVR2_PATHWAY_ANALOG) return 0; + if (!state_check_enable_encoder_run(hdw)) return 0; if (pvr2_encoder_start(hdw) < 0) return !0; hdw->state_encoder_run = !0; + if (!hdw->state_encoder_runok) { + hdw->encoder_run_timer.expires = + jiffies + (HZ*250/1000); + add_timer(&hdw->encoder_run_timer); + } } trace_stbit("state_encoder_run",hdw->state_encoder_run); return !0; @@ -3629,6 +3737,19 @@ static void pvr2_hdw_encoder_wait_timeout(unsigned long data) } +/* Timeout function for encoder run timer. */ +static void pvr2_hdw_encoder_run_timeout(unsigned long data) +{ + struct pvr2_hdw *hdw = (struct pvr2_hdw *)data; + if (!hdw->state_encoder_runok) { + hdw->state_encoder_runok = !0; + trace_stbit("state_encoder_runok",hdw->state_encoder_runok); + hdw->state_stale = !0; + queue_work(hdw->workqueue,&hdw->workpoll); + } +} + + /* Evaluate whether or not state_decoder_run can change */ static int state_eval_decoder_run(struct pvr2_hdw *hdw) { @@ -3718,6 +3839,16 @@ static int state_eval_usbstream_run(struct pvr2_hdw *hdw) } else if ((hdw->pathway_state == PVR2_PATHWAY_DIGITAL) && (hdw->hdw_desc->flag_digital_requires_cx23416)) { if (!hdw->state_encoder_ok) return 0; + if (hdw->state_encoder_run) return 0; + if (hdw->hdw_desc->digital_control_scheme == + PVR2_DIGITAL_SCHEME_ONAIR) { + /* OnAir digital receivers won't stream + unless the analog encoder has run first. + Why? I have no idea. But don't even + try until we know the analog side is + known to have run. */ + if (!hdw->state_encoder_runok) return 0; + } } if (pvr2_hdw_cmd_usbstream(hdw,!0) < 0) return 0; hdw->state_usbstream_run = !0; @@ -3861,7 +3992,12 @@ static unsigned int pvr2_hdw_report_unlocked(struct pvr2_hdw *hdw,int which, (hdw->state_encoder_ok ? "" : " <encode:init>"), (hdw->state_encoder_run ? - " <encode:run>" : " <encode:stop>"), + (hdw->state_encoder_runok ? + " <encode:run>" : + " <encode:firstrun>") : + (hdw->state_encoder_runok ? + " <encode:stop>" : + " <encode:virgin>")), (hdw->state_encoder_config ? " <encode:configok>" : (hdw->state_encoder_waitok ? |