에프에이리눅스 / fullcycle-jenkins-joy

ca.xml 14.3 KB
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<title>DVB CA Device</title>
<para>The DVB CA device controls the conditional access hardware. It can be accessed through
<constant>/dev/dvb/adapter?/ca?</constant>. Data types and and ioctl definitions can be accessed by
including <constant>linux/dvb/ca.h</constant> in your application.
</para>

<section id="ca_data_types">
<title>CA Data Types</title>


<section id="ca-slot-info">
<title>ca_slot_info_t</title>
 <programlisting>
typedef struct ca_slot_info {
	int num;               /&#x22C6; slot number &#x22C6;/

	int type;              /&#x22C6; CA interface this slot supports &#x22C6;/
#define CA_CI            1     /&#x22C6; CI high level interface &#x22C6;/
#define CA_CI_LINK       2     /&#x22C6; CI link layer level interface &#x22C6;/
#define CA_CI_PHYS       4     /&#x22C6; CI physical layer level interface &#x22C6;/
#define CA_DESCR         8     /&#x22C6; built-in descrambler &#x22C6;/
#define CA_SC          128     /&#x22C6; simple smart card interface &#x22C6;/

	unsigned int flags;
#define CA_CI_MODULE_PRESENT 1 /&#x22C6; module (or card) inserted &#x22C6;/
#define CA_CI_MODULE_READY   2
} ca_slot_info_t;
</programlisting>

</section>
<section id="ca-descr-info">
<title>ca_descr_info_t</title>
<programlisting>
typedef struct ca_descr_info {
	unsigned int num;  /&#x22C6; number of available descramblers (keys) &#x22C6;/
	unsigned int type; /&#x22C6; type of supported scrambling system &#x22C6;/
#define CA_ECD           1
#define CA_NDS           2
#define CA_DSS           4
} ca_descr_info_t;
</programlisting>

</section>
<section id="ca-caps">
<title>ca_caps_t</title>
<programlisting>
typedef struct ca_caps {
	unsigned int slot_num;  /&#x22C6; total number of CA card and module slots &#x22C6;/
	unsigned int slot_type; /&#x22C6; OR of all supported types &#x22C6;/
	unsigned int descr_num; /&#x22C6; total number of descrambler slots (keys) &#x22C6;/
	unsigned int descr_type;/&#x22C6; OR of all supported types &#x22C6;/
 } ca_cap_t;
</programlisting>

</section>
<section id="ca-msg">
<title>ca_msg_t</title>
<programlisting>
/&#x22C6; a message to/from a CI-CAM &#x22C6;/
typedef struct ca_msg {
	unsigned int index;
	unsigned int type;
	unsigned int length;
	unsigned char msg[256];
} ca_msg_t;
</programlisting>

</section>
<section id="ca-descr">
<title>ca_descr_t</title>
<programlisting>
typedef struct ca_descr {
	unsigned int index;
	unsigned int parity;
	unsigned char cw[8];
} ca_descr_t;
</programlisting>
</section>

<section id="ca-pid">
<title>ca-pid</title>
<programlisting>
typedef struct ca_pid {
	unsigned int pid;
	int index;		/&#x22C6; -1 == disable&#x22C6;/
} ca_pid_t;
</programlisting>
</section></section>

<section id="ca_function_calls">
<title>CA Function Calls</title>


<section id="ca_fopen">
<title>open()</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>This system call opens a named ca device (e.g. /dev/ost/ca) for subsequent use.</para>
<para>When an open() call has succeeded, the device will be ready for use.
 The significance of blocking or non-blocking mode is described in the
 documentation for functions where there is a difference. It does not affect the
 semantics of the open() call itself. A device opened in blocking mode can later
 be put into non-blocking mode (and vice versa) using the F_SETFL command
 of the fcntl system call. This is a standard system call, documented in the Linux
 manual page for fcntl. Only one user can open the CA Device in O_RDWR
 mode. All other attempts to open the device in this mode will fail, and an error
 code will be returned.</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>int open(const char &#x22C6;deviceName, int flags);</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
 align="char">
<para>const char
 *deviceName</para>
</entry><entry
 align="char">
<para>Name of specific video device.</para>
</entry>
 </row><row><entry
 align="char">
<para>int flags</para>
</entry><entry
 align="char">
<para>A bit-wise OR of the following flags:</para>
</entry>
 </row><row><entry
 align="char">
</entry><entry
 align="char">
<para>O_RDONLY read-only access</para>
</entry>
 </row><row><entry
 align="char">
</entry><entry
 align="char">
<para>O_RDWR read/write access</para>
</entry>
 </row><row><entry
 align="char">
</entry><entry
 align="char">
<para>O_NONBLOCK open in non-blocking mode</para>
</entry>
 </row><row><entry
 align="char">
</entry><entry
 align="char">
<para>(blocking mode is the default)</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>RETURN VALUE</para>
<informaltable><tgroup cols="2"><tbody><row><entry
 align="char">
<para>ENODEV</para>
</entry><entry
 align="char">
<para>Device driver not loaded/available.</para>
</entry>
 </row><row><entry
 align="char">
<para>EINTERNAL</para>
</entry><entry
 align="char">
<para>Internal error.</para>
</entry>
 </row><row><entry
 align="char">
<para>EBUSY</para>
</entry><entry
 align="char">
<para>Device or resource busy.</para>
</entry>
 </row><row><entry
 align="char">
<para>EINVAL</para>
</entry><entry
 align="char">
<para>Invalid argument.</para>
</entry>
 </row></tbody></tgroup></informaltable>

</section>
<section id="ca_fclose">
<title>close()</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>This system call closes a previously opened audio device.</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>int close(int fd);</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
 align="char">
<para>int fd</para>
</entry><entry
 align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>RETURN VALUE</para>
<informaltable><tgroup cols="2"><tbody><row><entry
 align="char">
<para>EBADF</para>
</entry><entry
 align="char">
<para>fd is not a valid open file descriptor.</para>
</entry>
 </row></tbody></tgroup></informaltable>
 </section>

<section id="CA_RESET"
role="subsection"><title>CA_RESET</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>int ioctl(fd, int request = CA_RESET);
</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
 align="char">
<para>int fd</para>
</entry><entry
 align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
 </row><row><entry
 align="char">
<para>int request</para>
</entry><entry
 align="char">
<para>Equals CA_RESET for this command.</para>
</entry>
 </row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>

<section id="CA_GET_CAP"
role="subsection"><title>CA_GET_CAP</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>int ioctl(fd, int request = CA_GET_CAP,
 ca_caps_t *);</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
 align="char">
<para>int fd</para>
</entry><entry
 align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
 </row><row><entry
 align="char">
<para>int request</para>
</entry><entry
 align="char">
<para>Equals CA_GET_CAP for this command.</para>
</entry>
 </row><row><entry
 align="char">
<para>ca_caps_t *
</para>
</entry><entry
 align="char">
<para>Undocumented.</para>
</entry>
 </row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>

<section id="CA_GET_SLOT_INFO"
role="subsection"><title>CA_GET_SLOT_INFO</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>int ioctl(fd, int request = CA_GET_SLOT_INFO,
 ca_slot_info_t *);</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
 align="char">
<para>int fd</para>
</entry><entry
 align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
 </row><row><entry
 align="char">
<para>int request</para>
</entry><entry
 align="char">
<para>Equals CA_GET_SLOT_INFO for this command.</para>
</entry>
 </row><row><entry
 align="char">
<para>ca_slot_info_t *
</para>
</entry><entry
 align="char">
<para>Undocumented.</para>
</entry>
 </row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>

<section id="CA_GET_DESCR_INFO"
role="subsection"><title>CA_GET_DESCR_INFO</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>int ioctl(fd, int request = CA_GET_DESCR_INFO,
 ca_descr_info_t *);</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
 align="char">
<para>int fd</para>
</entry><entry
 align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
 </row><row><entry
 align="char">
<para>int request</para>
</entry><entry
 align="char">
<para>Equals CA_GET_DESCR_INFO for this command.</para>
</entry>
 </row><row><entry
 align="char">
<para>ca_descr_info_t *
</para>
</entry><entry
 align="char">
<para>Undocumented.</para>
</entry>
 </row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>

<section id="CA_GET_MSG"
role="subsection"><title>CA_GET_MSG</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>int ioctl(fd, int request = CA_GET_MSG,
 ca_msg_t *);</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
 align="char">
<para>int fd</para>
</entry><entry
 align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
 </row><row><entry
 align="char">
<para>int request</para>
</entry><entry
 align="char">
<para>Equals CA_GET_MSG for this command.</para>
</entry>
 </row><row><entry
 align="char">
<para>ca_msg_t *
</para>
</entry><entry
 align="char">
<para>Undocumented.</para>
</entry>
 </row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>

<section id="CA_SEND_MSG"
role="subsection"><title>CA_SEND_MSG</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>int ioctl(fd, int request = CA_SEND_MSG,
 ca_msg_t *);</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
 align="char">
<para>int fd</para>
</entry><entry
 align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
 </row><row><entry
 align="char">
<para>int request</para>
</entry><entry
 align="char">
<para>Equals CA_SEND_MSG for this command.</para>
</entry>
 </row><row><entry
 align="char">
<para>ca_msg_t *
</para>
</entry><entry
 align="char">
<para>Undocumented.</para>
</entry>
 </row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>

<section id="CA_SET_DESCR"
role="subsection"><title>CA_SET_DESCR</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>int ioctl(fd, int request = CA_SET_DESCR,
 ca_descr_t *);</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
 align="char">
<para>int fd</para>
</entry><entry
 align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
 </row><row><entry
 align="char">
<para>int request</para>
</entry><entry
 align="char">
<para>Equals CA_SET_DESCR for this command.</para>
</entry>
 </row><row><entry
 align="char">
<para>ca_descr_t *
</para>
</entry><entry
 align="char">
<para>Undocumented.</para>
</entry>
 </row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>

<section id="CA_SET_PID"
role="subsection"><title>CA_SET_PID</title>
<para>DESCRIPTION
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>This ioctl is undocumented. Documentation is welcome.</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>SYNOPSIS
</para>
<informaltable><tgroup cols="1"><tbody><row><entry
 align="char">
<para>int ioctl(fd, int request = CA_SET_PID,
 ca_pid_t *);</para>
</entry>
 </row></tbody></tgroup></informaltable>
<para>PARAMETERS
</para>
<informaltable><tgroup cols="2"><tbody><row><entry
 align="char">
<para>int fd</para>
</entry><entry
 align="char">
<para>File descriptor returned by a previous call to open().</para>
</entry>
 </row><row><entry
 align="char">
<para>int request</para>
</entry><entry
 align="char">
<para>Equals CA_SET_PID for this command.</para>
</entry>
 </row><row><entry
 align="char">
<para>ca_pid_t *
</para>
</entry><entry
 align="char">
<para>Undocumented.</para>
</entry>
 </row></tbody></tgroup></informaltable>
&return-value-dvb;
</section>

</section>