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/*
device.cpp
*
* Copyright (C) 2013 Austin Hendrix <namniart@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Implementation of CEC Device class for Python
*
* Author: Austin Hendrix <namniart@gmail.com>
*/
//
request the std format macros
#
define
__STDC_FORMAT_MACROS
#
include
"
device.h
"
#
include
<
inttypes.h
>
using
namespace
CEC
;
static
ICECAdapter * adapter;
static
PyObject *
Device_getAddr
(Device * self,
void
* closure) {
return
Py_BuildValue
(
"
b
"
, self->
addr
);
}
static
PyObject *
Device_getPhysicalAddress
(Device * self,
void
* closure) {
Py_INCREF
(self->
physicalAddress
);
return
self->
physicalAddress
;
}
static
PyObject *
Device_getVendor
(Device * self,
void
* closure) {
Py_INCREF
(self->
vendorId
);
return
self->
vendorId
;
}
static
PyObject *
Device_getOsdString
(Device * self,
void
* closure) {
Py_INCREF
(self->
osdName
);
return
self->
osdName
;
}
static
PyObject *
Device_getCECVersion
(Device * self,
void
* closure) {
Py_INCREF
(self->
cecVersion
);
return
self->
cecVersion
;
}
static
PyObject *
Device_getLanguage
(Device * self,
void
* closure) {
Py_INCREF
(self->
lang
);
return
self->
lang
;
}
#
pragma
GCC diagnostic ignored "-Wwrite-strings"
static
PyGetSetDef Device_getset[] = {
{
"
address
"
, (getter)Device_getAddr, (setter)
NULL
,
"
Logical Address
"
},
{
"
physical_address
"
, (getter)Device_getPhysicalAddress, (setter)
NULL
,
"
Physical Addresss
"
},
{
"
vendor
"
, (getter)Device_getVendor, (setter)
NULL
,
"
Vendor ID
"
},
{
"
osd_string
"
, (getter)Device_getOsdString, (setter)
NULL
,
"
OSD String
"
},
{
"
cec_version
"
, (getter)Device_getCECVersion, (setter)
NULL
,
"
CEC Version
"
},
{
"
language
"
, (getter)Device_getLanguage, (setter)
NULL
,
"
Language
"
},
{
NULL
}
};
static
PyObject *
Device_is_on
(Device * self) {
cec_power_status power;
Py_BEGIN_ALLOW_THREADS
power = adapter->
GetDevicePowerStatus
(self->
addr
);
Py_END_ALLOW_THREADS
PyObject * ret;
switch
(power) {
case
CEC_POWER_STATUS_ON
:
case
CEC_POWER_STATUS_IN_TRANSITION_ON_TO_STANDBY
:
ret = Py_True;
break
;
case
CEC_POWER_STATUS_STANDBY
:
case
CEC_POWER_STATUS_IN_TRANSITION_STANDBY_TO_ON
:
ret = Py_False;
break
;
case
CEC_POWER_STATUS_UNKNOWN
:
default
:
PyErr_SetString
(PyExc_IOError,
"
Power status not found
"
);
return
NULL
;
}
Py_INCREF
(ret);
return
ret;
}
static
PyObject *
Device_power_on
(Device * self) {
bool
success;
Py_BEGIN_ALLOW_THREADS
success = adapter->
PowerOnDevices
(self->
addr
);
Py_END_ALLOW_THREADS
if
( success ) {
Py_RETURN_TRUE;
}
else
{
Py_RETURN_FALSE;
}
}
static
PyObject *
Device_standby
(Device * self) {
bool
success;
Py_BEGIN_ALLOW_THREADS
success = adapter->
StandbyDevices
(self->
addr
);
Py_END_ALLOW_THREADS
if
( success ) {
Py_RETURN_TRUE;
}
else
{
Py_RETURN_FALSE;
}
}
static
PyObject *
Device_is_active
(Device * self) {
bool
success;
Py_BEGIN_ALLOW_THREADS
success = adapter->
IsActiveSource
(self->
addr
);
Py_END_ALLOW_THREADS
if
( success ) {
Py_RETURN_TRUE;
}
else
{
Py_RETURN_FALSE;
}
}
static
PyObject *
Device_av_input
(Device * self, PyObject * args) {
unsigned
char
input;
if
(
PyArg_ParseTuple
(args,
"
b:set_av_input
"
, &input) ) {
cec_command data;
bool
success;
Py_BEGIN_ALLOW_THREADS
data.
initiator
= adapter->
GetLogicalAddresses
().
primary
;
data.
destination
= self->
addr
;
data.
opcode
=
CEC_OPCODE_USER_CONTROL_PRESSED
;
data.
opcode_set
=
1
;
data.
PushBack
(
0x69
);
data.
PushBack
(input);
success = adapter->
Transmit
(data);
Py_END_ALLOW_THREADS
if
( success ) {
Py_RETURN_TRUE;
}
else
{
Py_RETURN_FALSE;
}
}
else
{
return
NULL
;
}
}
static
PyObject *
Device_audio_input
(Device * self, PyObject * args) {
unsigned
char
input;
if
(
PyArg_ParseTuple
(args,
"
b:set_audio_input
"
, &input) ) {
cec_command data;
bool
success;
Py_BEGIN_ALLOW_THREADS
data.
initiator
= adapter->
GetLogicalAddresses
().
primary
;
data.
destination
= self->
addr
;
data.
opcode
=
CEC_OPCODE_USER_CONTROL_PRESSED
;
data.
opcode_set
=
1
;
data.
PushBack
(
0x6a
);
data.
PushBack
(input);
success = adapter->
Transmit
(data);
Py_END_ALLOW_THREADS
if
( success ) {
Py_RETURN_TRUE;
}
else
{
Py_RETURN_FALSE;
}
}
else
{
return
NULL
;
}
}
static
PyObject *
Device_transmit
(Device * self, PyObject * args) {
unsigned
char
opcode;
const
char
* params =
NULL
;
Py_ssize_t param_count =
0
;
if
(
PyArg_ParseTuple
(args,
"
b|s#:transmit
"
, &opcode,
¶ms, ¶m_count) ) {
if
( param_count >
CEC_MAX_DATA_PACKET_SIZE
) {
char
errstr[
1024
];
snprintf
(errstr,
1024
,
"
Too many parameters, maximum is %d
"
,
CEC_MAX_DATA_PACKET_SIZE
);
PyErr_SetString
(PyExc_ValueError, errstr);
return
NULL
;
}
cec_command data;
bool
success;
Py_BEGIN_ALLOW_THREADS
data.
initiator
= adapter->
GetLogicalAddresses
().
primary
;
data.
destination
= self->
addr
;
data.
opcode
= (cec_opcode)opcode;
data.
opcode_set
=
1
;
if
( params ) {
for
( Py_ssize_t i=
0
; i<param_count; i++ ) {
data.
PushBack
(((
uint8_t
*)params)[i]);
}
}
success = adapter->
Transmit
(data);
Py_END_ALLOW_THREADS
if
( success ) {
Py_RETURN_TRUE;
}
else
{
Py_RETURN_FALSE;
}
}
else
{
return
NULL
;
}
}
static
PyObject *
Device_new
(PyTypeObject * type, PyObject * args,
PyObject * kwds) {
Device * self;
unsigned
char
addr;
if
( !
PyArg_ParseTuple
(args,
"
b:Device new
"
, &addr) ) {
return
NULL
;
}
if
( addr <
0
) {
PyErr_SetString
(PyExc_ValueError,
"
Logical address should be >= 0
"
);
return
NULL
;
}
if
( addr >
15
) {
PyErr_SetString
(PyExc_ValueError,
"
Logical address should be < 16
"
);
return
NULL
;
}
self = (Device*)type->
tp_alloc
(type,
0
);
if
( self !=
NULL
) {
self->
addr
= (cec_logical_address)addr;
uint64_t
vendor;
Py_BEGIN_ALLOW_THREADS
vendor = adapter->
GetDeviceVendorId
(self->
addr
);
Py_END_ALLOW_THREADS
char
vendor_str[
7
];
snprintf
(vendor_str,
7
,
"
%06
"
PRIX64
, vendor);
if
( ! (self->
vendorId
=
Py_BuildValue
(
"
s
"
, vendor_str)) )
return
NULL
;
char
strAddr[
8
];
Py_BEGIN_ALLOW_THREADS
uint16_t
physicalAddress = adapter->
GetDevicePhysicalAddress
(self->
addr
);
snprintf
(strAddr,
8
,
"
%x.%x.%x.%x
"
,
(physicalAddress >>
12
) &
0xF
,
(physicalAddress >>
8
) &
0xF
,
(physicalAddress >>
4
) &
0xF
,
physicalAddress &
0xF
);
Py_END_ALLOW_THREADS
self->
physicalAddress
=
Py_BuildValue
(
"
s
"
, strAddr);
const
char
* ver_str;
Py_BEGIN_ALLOW_THREADS
cec_version ver = adapter->
GetDeviceCecVersion
(self->
addr
);
switch
(ver) {
case
CEC_VERSION_1_2
:
ver_str =
"
1.2
"
;
break
;
case
CEC_VERSION_1_2A
:
ver_str =
"
1.2a
"
;
break
;
case
CEC_VERSION_1_3
:
ver_str =
"
1.3
"
;
break
;
case
CEC_VERSION_1_3A
:
ver_str =
"
1.3a
"
;
break
;
case
CEC_VERSION_1_4
:
ver_str =
"
1.4
"
;
break
;
case
CEC_VERSION_UNKNOWN
:
default
:
ver_str =
"
Unknown
"
;
break
;
}
Py_END_ALLOW_THREADS
if
( !(self->
cecVersion
=
Py_BuildValue
(
"
s
"
, ver_str)) )
return
NULL
;
#
if
CEC_LIB_VERSION_MAJOR >= 4
std::string name;
Py_BEGIN_ALLOW_THREADS
name = adapter->
GetDeviceOSDName
(self->
addr
);
Py_END_ALLOW_THREADS
if
( !(self->
osdName
=
Py_BuildValue
(
"
s#
"
, name.
c_str
(), name.
length
())) )
return
NULL
;
#
else
cec_osd_name name;
Py_BEGIN_ALLOW_THREADS
name = adapter->
GetDeviceOSDName
(self->
addr
);
Py_END_ALLOW_THREADS
if
( !(self->
osdName
=
Py_BuildValue
(
"
s
"
, name.
name
)) )
return
NULL
;
#
endif
#
if
CEC_LIB_VERSION_MAJOR >= 4
std::string lang;
Py_BEGIN_ALLOW_THREADS
lang = adapter->
GetDeviceMenuLanguage
(self->
addr
);
Py_END_ALLOW_THREADS
if
( !(self->
lang
=
Py_BuildValue
(
"
s#
"
, lang.
c_str
(), lang.
length
())) )
return
NULL
;
#
else
cec_menu_language lang;
Py_BEGIN_ALLOW_THREADS
adapter->
GetDeviceMenuLanguage
(self->
addr
, &lang);
Py_END_ALLOW_THREADS
if
( !(self->
lang
=
Py_BuildValue
(
"
s
"
, lang.
language
)) )
return
NULL
;
#
endif
}
return
(PyObject *)self;
}
static
void
Device_dealloc
(Device * self) {
Py_DECREF
(self->
vendorId
);
Py_DECREF
(self->
physicalAddress
);
Py_DECREF
(self->
cecVersion
);
Py_DECREF
(self->
osdName
);
Py_DECREF
(self->
lang
);
Py_TYPE
(self)->
tp_free
((PyObject*)self);
}
static
PyObject *
Device_str
(Device * self) {
char
addr[
16
];
snprintf
(addr,
16
,
"
CEC Device %d
"
, self->
addr
);
return
Py_BuildValue
(
"
s
"
, addr);
}
static
PyObject *
Device_repr
(Device * self) {
char
addr[
16
];
snprintf
(addr,
16
,
"
Device(%d)
"
, self->
addr
);
return
Py_BuildValue
(
"
s
"
, addr);
}
static
PyMethodDef Device_methods[] = {
{
"
is_on
"
, (PyCFunction)Device_is_on,
METH_NOARGS
,
"
Get device power status
"
},
{
"
power_on
"
, (PyCFunction)Device_power_on,
METH_NOARGS
,
"
Power on this device
"
},
{
"
standby
"
, (PyCFunction)Device_standby,
METH_NOARGS
,
"
Put this device into standby
"
},
{
"
is_active
"
, (PyCFunction)Device_is_active,
METH_VARARGS
,
"
Check if this device is the active source on the bus
"
},
{
"
set_av_input
"
, (PyCFunction)Device_av_input,
METH_VARARGS
,
"
Select AV Input
"
},
{
"
set_audio_input
"
, (PyCFunction)Device_audio_input,
METH_VARARGS
,
"
Select Audio Input
"
},
{
"
transmit
"
, (PyCFunction)Device_transmit,
METH_VARARGS
,
"
Transmit a raw CEC command to this device
"
},
{
NULL
}
};
static
PyTypeObject DeviceType = {
PyVarObject_HEAD_INIT
(
NULL
,
0
)
"
cec.Device
"
,
/*
tp_name
*/
sizeof
(Device),
/*
tp_basicsize
*/
0
,
/*
tp_itemsize
*/
(destructor)Device_dealloc,
/*
tp_dealloc
*/
0
,
/*
tp_print
*/
0
,
/*
tp_getattr
*/
0
,
/*
tp_setattr
*/
0
,
/*
tp_compare
*/
(reprfunc)Device_repr,
/*
tp_repr
*/
0
,
/*
tp_as_number
*/
0
,
/*
tp_as_sequence
*/
0
,
/*
tp_as_mapping
*/
0
,
/*
tp_hash
*/
0
,
/*
tp_call
*/
(reprfunc)Device_str,
/*
tp_str
*/
0
,
/*
tp_getattro
*/
0
,
/*
tp_setattro
*/
0
,
/*
tp_as_buffer
*/
Py_TPFLAGS_DEFAULT,
/*
tp_flags
*/
"
CEC Device objects
"
,
/*
tp_doc
*/
};
PyTypeObject *
DeviceTypeInit
(ICECAdapter * a) {
adapter = a;
DeviceType.
tp_new
= Device_new;
DeviceType.
tp_methods
= Device_methods;
DeviceType.
tp_getset
= Device_getset;
return
& DeviceType;
}
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