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Implemented support for MTD

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This commit is contained in:
Klaus Schmidinger
2017-03-18 16:33:59 +01:00
parent 3f9cdea1c1
commit 2cc25e65f4
10 changed files with 969 additions and 104 deletions
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86
device.c
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@@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: device.c 4.7 2017/02/21 13:38:01 kls Exp $
* $Id: device.c 4.8 2017/03/18 15:45:53 kls Exp $
*/
#include "device.h"
@@ -281,8 +281,13 @@ cDevice *cDevice::GetDevice(const cChannel *Channel, int Priority, bool LiveView
continue; // CAM slot can't be used with this device
bool ndr;
if (device[i]->ProvidesChannel(Channel, Priority, &ndr)) { // this device is basically able to do the job
if (NumUsableSlots && !HasInternalCam && device[i]->CamSlot() && device[i]->CamSlot() != CamSlots.Get(j))
ndr = true; // using a different CAM slot requires detaching receivers
if (NumUsableSlots && !HasInternalCam) {
if (cCamSlot *csi = device[i]->CamSlot()) {
cCamSlot *csj = CamSlots.Get(j);
if ((csj->MtdActive() ? csi->MasterSlot() : csi) != csj)
ndr = true; // using a different CAM slot requires detaching receivers
}
}
// Put together an integer number that reflects the "impact" using
// this device would have on the overall system. Each condition is represented
// by one bit in the number (or several bits, if the condition is actually
@@ -319,12 +324,75 @@ cDevice *cDevice::GetDevice(const cChannel *Channel, int Priority, bool LiveView
if (NeedsDetachReceivers)
d->DetachAllReceivers();
if (s) {
if (s->Device() != d) {
if (s->Device())
s->Device()->DetachAllReceivers();
if (d->CamSlot())
d->CamSlot()->Assign(NULL);
s->Assign(d);
// Some of the following statements could probably be combined, but let's keep them
// explicit so we can clearly see every single aspect of the decisions made here.
if (d->CamSlot()) {
if (s->MtdActive()) {
if (s == d->CamSlot()->MasterSlot()) {
// device d already has a proper CAM slot, so nothing to do here
}
else {
// device d has a CAM slot, but it's not the right one
d->CamSlot()->Assign(NULL);
s = s->MtdSpawn();
s->Assign(d);
}
}
else {
if (s->Device()) {
if (s->Device() != d) {
// CAM slot s is currently assigned to a different device than d
if (Priority > s->Priority()) {
s->Device()->DetachAllReceivers();
d->CamSlot()->Assign(NULL);
s->Assign(d);
}
else {
d = NULL;
s = NULL;
}
}
else {
// device d already has a proper CAM slot, so nothing to do here
}
}
else {
if (s != d->CamSlot()) {
// device d has a CAM slot, but it's not the right one
d->CamSlot()->Assign(NULL);
s->Assign(d);
}
else {
// device d already has a proper CAM slot, so nothing to do here
}
}
}
}
else {
// device d has no CAM slot, ...
if (s->MtdActive()) {
// ... so we assign s with MTD support
s = s->MtdSpawn();
s->Assign(d);
}
else {
// CAM slot s has no MTD support ...
if (s->Device()) {
// ... but it is assigned to a different device, so we reassign it to d
if (Priority > s->Priority()) {
s->Device()->DetachAllReceivers();
s->Assign(d);
}
else {
d = NULL;
s = NULL;
}
}
else {
// ... and is not assigned to any device, so we just assign it to d
s->Assign(d);
}
}
}
}
else if (d->CamSlot() && !d->CamSlot()->IsDecrypting())