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V4L/DVB (7709): pvrusb2: New device attribute for encoder usage in digital mode 

Some tuners seem to not work in digital mode unless the encoder is
healthy.  Implement a device attribute to represent this flag and
modify the core state machines to enforce this requirement.

Signed-off-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Mike Isely 2008-04-03 04:51:19 -03:00 committed by Mauro Carvalho Chehab
parent 07b80264c3
commit 72998b7109
3 changed files with 33 additions and 9 deletions
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2
drivers/media/video/pvrusb2/pvrusb2-devattr.c
View File

@ -201,6 +201,7 @@ static const struct pvr2_device_desc pvr2_device_onair_creator = {
.flag_has_analogtuner = !0,
.flag_has_composite = !0,
.flag_has_svideo = !0,
.flag_digital_requires_cx23416 = !0,
.signal_routing_scheme = PVR2_ROUTING_SCHEME_HAUPPAUGE,
.digital_control_scheme = PVR2_DIGITAL_SCHEME_ONAIR,
.default_std_mask = V4L2_STD_NTSC_M,
@ -262,6 +263,7 @@ static const struct pvr2_device_desc pvr2_device_onair_usb2 = {
.flag_has_analogtuner = !0,
.flag_has_composite = !0,
.flag_has_svideo = !0,
.flag_digital_requires_cx23416 = !0,
.signal_routing_scheme = PVR2_ROUTING_SCHEME_HAUPPAUGE,
.digital_control_scheme = PVR2_DIGITAL_SCHEME_ONAIR,
.default_std_mask = V4L2_STD_NTSC_M,

7
drivers/media/video/pvrusb2/pvrusb2-devattr.h
View File

@ -106,6 +106,13 @@ struct pvr2_device_desc {
/* If set, we don't bother trying to load cx23416 firmware. */
int flag_skip_cx23416_firmware:1;
/* If set, the encoder must be healthy in order for digital mode to
work (otherwise we assume that digital streaming will work even
if we fail to locate firmware for the encoder). If the device
doesn't support digital streaming then this flag has no
effect. */
int flag_digital_requires_cx23416:1;
/* Device has a hauppauge eeprom which we can interrogate. */
int flag_has_hauppauge_rom:1;

33
drivers/media/video/pvrusb2/pvrusb2-hdw.c
View File

@ -3502,7 +3502,12 @@ static int state_eval_encoder_ok(struct pvr2_hdw *hdw)
if (hdw->state_encoder_config) return 0;
if (hdw->state_decoder_run) return 0;
if (hdw->state_usbstream_run) return 0;
if (hdw->pathway_state != PVR2_PATHWAY_ANALOG) return 0;
if (hdw->pathway_state == PVR2_PATHWAY_DIGITAL) {
if (!hdw->hdw_desc->flag_digital_requires_cx23416) return 0;
} else if (hdw->pathway_state != PVR2_PATHWAY_ANALOG) {
return 0;
}
if (pvr2_upload_firmware2(hdw) < 0) {
hdw->flag_tripped = !0;
trace_stbit("flag_tripped",hdw->flag_tripped);
@ -3687,14 +3692,19 @@ static int state_eval_decoder_run(struct pvr2_hdw *hdw)
static int state_eval_usbstream_run(struct pvr2_hdw *hdw)
{
if (hdw->state_usbstream_run) {
int fl = !0;
if (hdw->pathway_state == PVR2_PATHWAY_ANALOG) {
if (hdw->state_encoder_ok &&
hdw->state_encoder_run &&
hdw->state_pathway_ok) return 0;
} else {
if (hdw->state_pipeline_req &&
!hdw->state_pipeline_pause &&
hdw->state_pathway_ok) return 0;
fl = (hdw->state_encoder_ok &&
hdw->state_encoder_run);
} else if ((hdw->pathway_state == PVR2_PATHWAY_DIGITAL) &&
(hdw->hdw_desc->flag_digital_requires_cx23416)) {
fl = hdw->state_encoder_ok;
}
if (fl &&
hdw->state_pipeline_req &&
!hdw->state_pipeline_pause &&
hdw->state_pathway_ok) {
return 0;
}
pvr2_hdw_cmd_usbstream(hdw,0);
hdw->state_usbstream_run = 0;
@ -3705,6 +3715,9 @@ static int state_eval_usbstream_run(struct pvr2_hdw *hdw)
if (hdw->pathway_state == PVR2_PATHWAY_ANALOG) {
if (!hdw->state_encoder_ok ||
!hdw->state_encoder_run) return 0;
} else if ((hdw->pathway_state == PVR2_PATHWAY_DIGITAL) &&
(hdw->hdw_desc->flag_digital_requires_cx23416)) {
if (!hdw->state_encoder_ok) return 0;
}
if (pvr2_hdw_cmd_usbstream(hdw,!0) < 0) return 0;
hdw->state_usbstream_run = !0;
@ -3943,7 +3956,9 @@ static int pvr2_hdw_state_eval(struct pvr2_hdw *hdw)
st = PVR2_STATE_DEAD;
} else if (hdw->fw1_state != FW1_STATE_OK) {
st = PVR2_STATE_COLD;
} else if (analog_mode && !hdw->state_encoder_ok) {
} else if ((analog_mode ||
hdw->hdw_desc->flag_digital_requires_cx23416) &&
!hdw->state_encoder_ok) {
st = PVR2_STATE_WARM;
} else if (hdw->flag_tripped ||
(analog_mode && hdw->flag_decoder_missed)) {