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[enigma2.git] / lib / dvb / dvb.h
1 #ifndef __dvb_dvb_h
2 #define __dvb_dvb_h
3
4 #include <lib/dvb/idvb.h>
5 #include <lib/dvb/demux.h>
6 #include <lib/dvb/frontend.h>
7 #include <connection.h>
8
9 class eDVBChannel;
10 class eDVBChannel;
11
12         /* we do NOT handle resource conflicts here. instead, the allocateChannel
13            fails, and the application has to see why the channel is allocated
14            (and how to deallocate it). */
15 class iDVBAdapter;
16
17 class eDVBRegisteredFrontend: public iObject
18 {
19 DECLARE_REF(eDVBRegisteredFrontend);
20 public:
21         iDVBAdapter *m_adapter;
22         ePtr<eDVBFrontend> m_frontend;
23         int m_inuse;
24         eDVBRegisteredFrontend(eDVBFrontend *fe, iDVBAdapter *adap): m_adapter(adap), m_frontend(fe), m_inuse(0) { }
25 };
26
27 struct eDVBRegisteredDemux
28 {
29 DECLARE_REF(eDVBRegisteredDemux);
30 public:
31         iDVBAdapter *m_adapter;
32         ePtr<eDVBDemux> m_demux;
33         int m_inuse;
34         eDVBRegisteredDemux(eDVBDemux *demux, iDVBAdapter *adap): m_adapter(adap), m_demux(demux), m_inuse(0) { }
35 };
36
37 class eDVBAllocatedFrontend
38 {
39 DECLARE_REF(eDVBAllocatedFrontend);
40 public:
41         
42         eDVBAllocatedFrontend(eDVBRegisteredFrontend *fe);
43         ~eDVBAllocatedFrontend();
44         eDVBFrontend &get() { return *m_fe->m_frontend; }
45         operator eDVBRegisteredFrontend*() { return m_fe; }
46         operator eDVBFrontend*() { return m_fe->m_frontend; }
47
48 private:
49         eDVBRegisteredFrontend *m_fe;
50 };
51
52 class eDVBAllocatedDemux
53 {
54 DECLARE_REF(eDVBAllocatedDemux);
55 public:
56         
57         eDVBAllocatedDemux(eDVBRegisteredDemux *demux);
58         ~eDVBAllocatedDemux();
59         eDVBDemux &get() { return *m_demux->m_demux; }
60         operator eDVBRegisteredDemux*() { return m_demux; }
61         operator eDVBDemux*() { return m_demux->m_demux; }
62         
63 private:
64         eDVBRegisteredDemux *m_demux;
65 };
66
67 class iDVBAdapter: public iObject
68 {
69 public:
70         virtual int getNumDemux() = 0;
71         virtual RESULT getDemux(ePtr<eDVBDemux> &demux, int nr) = 0;
72         
73         virtual int getNumFrontends() = 0;
74         virtual RESULT getFrontend(ePtr<eDVBFrontend> &fe, int nr) = 0;
75 };
76
77 class eDVBAdapterLinux: public iDVBAdapter
78 {
79 DECLARE_REF(eDVBAdapterLinux);
80 public:
81         eDVBAdapterLinux(int nr);
82
83         int getNumDemux();
84         RESULT getDemux(ePtr<eDVBDemux> &demux, int nr);
85         
86         int getNumFrontends();
87         RESULT getFrontend(ePtr<eDVBFrontend> &fe, int nr);
88         
89         static int exist(int nr);
90 private:
91         int m_nr;
92         eSmartPtrList<eDVBFrontend> m_frontend;
93         eSmartPtrList<eDVBDemux>    m_demux;
94 };
95
96 class eDVBResourceManager: public iObject
97 {
98         DECLARE_REF(eDVBResourceManager);
99         int avail, busy;
100         
101         eSmartPtrList<iDVBAdapter> m_adapter;
102         
103         eSmartPtrList<eDVBRegisteredDemux> m_demux;
104         eSmartPtrList<eDVBRegisteredFrontend> m_frontend;
105         
106         void addAdapter(iDVBAdapter *adapter);
107         
108                         /* allocates a frontend able to tune to channelID "chid".
109                            the frontend must be tuned lateron. there is no guarante
110                            that tuning will suceed - it just means that if this frontend
111                            can't tune, no other frontend could do it.
112                            
113                            there might be a priority given to certain frontend/chid 
114                            combinations. this will be evaluated here. */
115                            
116         RESULT allocateFrontend(const eDVBChannelID &chid, ePtr<eDVBAllocatedFrontend> &fe);
117         
118                         /* allocate a demux able to filter on the selected frontend. */
119         RESULT allocateDemux(eDVBRegisteredFrontend *fe, ePtr<eDVBAllocatedDemux> &demux);
120         
121         struct active_channel
122         {
123                 eDVBChannelID m_channel_id;
124                         /* we don't hold a reference here. */
125                 eDVBChannel *m_channel;
126                 
127                 active_channel(const eDVBChannelID &chid, eDVBChannel *ch) : m_channel_id(chid), m_channel(ch) { }
128         };
129         
130         std::list<active_channel> m_active_channels;
131         
132         ePtr<iDVBChannelList> m_list;
133         ePtr<iDVBSatelliteEquipmentControl> m_sec;
134         static eDVBResourceManager *instance;
135
136         friend class eDVBChannel;
137         RESULT addChannel(const eDVBChannelID &chid, eDVBChannel *ch);
138         RESULT removeChannel(eDVBChannel *ch);
139 public:
140         eDVBResourceManager();
141         virtual ~eDVBResourceManager();
142         
143         static RESULT getInstance(ePtr<eDVBResourceManager> &ptr) { if (instance) { ptr = instance; return 0; } return -1; }
144         
145         RESULT setChannelList(iDVBChannelList *list);
146         RESULT getChannelList(ePtr<iDVBChannelList> &list);
147         
148         enum {
149                 errNoFrontend = -1,
150                 errNoDemux    = -2,
151                 errChidNotFound = -3
152         };
153         
154                 /* allocate channel... */
155         RESULT allocateChannel(const eDVBChannelID &channelid, ePtr<iDVBChannel> &channel);
156         RESULT allocateRawChannel(ePtr<iDVBChannel> &channel);
157         RESULT allocatePVRChannel(int caps);
158
159 };
160
161 class eDVBChannel: public iDVBChannel, public Object
162 {
163         DECLARE_REF(eDVBChannel);
164 private:
165         ePtr<eDVBAllocatedFrontend> m_frontend;
166         ePtr<eDVBAllocatedDemux> m_demux;
167         
168         ePtr<iDVBFrontendParameters> m_current_frontend_parameters;
169         eDVBChannelID m_channel_id;
170         Signal1<void,iDVBChannel*> m_stateChanged;
171         int m_state;
172
173                         /* for channel list */
174         ePtr<eDVBResourceManager> m_mgr;
175         
176         void frontendStateChanged(iDVBFrontend*fe);
177         ePtr<eConnection> m_conn_frontendStateChanged;
178 public:
179         eDVBChannel(eDVBResourceManager *mgr, eDVBAllocatedFrontend *frontend, eDVBAllocatedDemux *demux);
180         virtual ~eDVBChannel();
181
182                 /* only for managed channels - effectively tunes to the channelid. should not be used... */
183         RESULT setChannel(const eDVBChannelID &id);
184         
185         RESULT connectStateChange(const Slot1<void,iDVBChannel*> &stateChange, ePtr<eConnection> &connection);
186         RESULT getState(int &state);
187
188         RESULT setCIRouting(const eDVBCIRouting &routing);
189         RESULT getDemux(ePtr<iDVBDemux> &demux);
190         RESULT getFrontend(ePtr<iDVBFrontend> &frontend);
191 };
192
193 #endif