/* plugctl.c
* A program to get or set any MPR or PCR register value.
* Copyright 2002-2004 Dan Dennedy
*
* 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 Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* standard system includes */
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
#include <errno.h>
/* linux1394 includes */
#include <libraw1394/raw1394.h>
#include "../src/iec61883.h"
/************ DECLARE PRIVATE INTERFACE BITS OF LIBIEC61883!! **************/
/* standard CSR offsets for plugs */
#define CSR_O_MPR 0x900
#define CSR_O_PCR_0 0x904
#define CSR_O_PCR_1 0x908
#define CSR_O_PCR_2 0x90C
#define CSR_O_PCR_3 0x910
#define CSR_I_MPR 0x980
#define CSR_I_PCR_0 0x984
#define CSR_I_PCR_1 0x988
#define CSR_I_PCR_2 0x98C
#define CSR_I_PCR_3 0x990
#if ( __BYTE_ORDER == __BIG_ENDIAN )
struct iec61883_oMPR {
unsigned int data_rate:2;
unsigned int bcast_channel:6;
unsigned int non_persist_ext:8;
unsigned int persist_ext:8;
unsigned int reserved:3;
unsigned int n_plugs:5;
};
struct iec61883_iMPR {
unsigned int data_rate:2;
unsigned int reserved:6;
unsigned int non_persist_ext:8;
unsigned int persist_ext:8;
unsigned int reserved2:3;
unsigned int n_plugs:5;
};
struct iec61883_oPCR {
unsigned int online:1;
unsigned int bcast_connection:1;
unsigned int n_p2p_connections:6;
unsigned int reserved:2;
unsigned int channel:6;
unsigned int data_rate:2;
unsigned int overhead_id:4;
unsigned int payload:10;
};
struct iec61883_iPCR {
unsigned int online:1;
unsigned int bcast_connection:1;
unsigned int n_p2p_connections:6;
unsigned int reserved:2;
unsigned int channel:6;
unsigned int reserved2:16;
};
#else
struct iec61883_oMPR {
unsigned int n_plugs:5;
unsigned int reserved:3;
unsigned int persist_ext:8;
unsigned int non_persist_ext:8;
unsigned int bcast_channel:6;
unsigned int data_rate:2;
};
struct iec61883_iMPR {
unsigned int n_plugs:5;
unsigned int reserved2:3;
unsigned int persist_ext:8;
unsigned int non_persist_ext:8;
unsigned int reserved:6;
unsigned int data_rate:2;
};
struct iec61883_oPCR {
unsigned int payload:10;
unsigned int overhead_id:4;
unsigned int data_rate:2;
unsigned int channel:6;
unsigned int reserved:2;
unsigned int n_p2p_connections:6;
unsigned int bcast_connection:1;
unsigned int online:1;
};
struct iec61883_iPCR {
unsigned int reserved2:16;
unsigned int channel:6;
unsigned int reserved:2;
unsigned int n_p2p_connections:6;
unsigned int bcast_connection:1;
unsigned int online:1;
};
#endif
/**
* iec61883_plug_get - Read a node's plug register.
* @h: A raw1394 handle.
* @n: The node id of the node to read
* @a: The CSR offset address (relative to base) of the register to read.
* @value: A pointer to a quadlet where the plug register's value will be stored.
*
* This function handles bus to host endian conversion. It returns 0 for
* suceess or -1 for error (errno available).
**/
extern int
iec61883_plug_get(raw1394handle_t h, nodeid_t n, nodeaddr_t a, quadlet_t *value);
/**
* iec61883_plug_set - Write a node's plug register.
* @h: A raw1394 handle.
* @n: The node id of the node to read
* @a: The CSR offset address (relative to CSR base) of the register to write.
* @value: A quadlet containing the new register value.
*
* This uses a compare/swap lock operation to safely write the
* new register value, as required by IEC 61883-1.
* This function handles host to bus endian conversion. It returns 0 for success
* or -1 for error (errno available).
**/
extern int
iec61883_plug_set(raw1394handle_t h, nodeid_t n, nodeaddr_t a, quadlet_t value);
/**
* High level plug access macros
*/
#define iec61883_get_oMPR(h,n,v) iec61883_plug_get((h), (n), CSR_O_MPR, (quadlet_t *)(v))
#define iec61883_set_oMPR(h,n,v) iec61883_plug_set((h), (n), CSR_O_MPR, *((quadlet_t *)&(v)))
#define iec61883_get_oPCR0(h,n,v) iec61883_plug_get((h), (n), CSR_O_PCR_0, (quadlet_t *)(v))
#define iec61883_set_oPCR0(h,n,v) iec61883_plug_set((h), (n), CSR_O_PCR_0, *((quadlet_t *)&(v)))
#define iec61883_get_oPCRX(h,n,v,x) iec61883_plug_get((h), (n), CSR_O_PCR_0+(4*(x)), (quadlet_t *)(v))
#define iec61883_set_oPCRX(h,n,v,x) iec61883_plug_set((h), (n), CSR_O_PCR_0+(4*(x)), *((quadlet_t *)&(v)))
#define iec61883_get_iMPR(h,n,v) iec61883_plug_get((h), (n), CSR_I_MPR, (quadlet_t *)(v))
#define iec61883_set_iMPR(h,n,v) iec61883_plug_set((h), (n), CSR_I_MPR, *((quadlet_t *)&(v)))
#define iec61883_get_iPCR0(h,n,v) iec61883_plug_get((h), (n), CSR_I_PCR_0, (quadlet_t *)(v))
#define iec61883_set_iPCR0(h,n,v) iec61883_plug_set((h), (n), CSR_I_PCR_0, *((quadlet_t *)&(v)))
#define iec61883_get_iPCRX(h,n,v,x) iec61883_plug_get((h), (n), CSR_I_PCR_0+(4*(x)), (quadlet_t *)(v))
#define iec61883_set_iPCRX(h,n,v,x) iec61883_plug_set((h), (n), CSR_I_PCR_0+(4*(x)), *((quadlet_t *)&(v)))
/************ END PRIVATE INTERFACE **************/
#define FAIL(s) {fprintf(stderr, "libiec61883 error: %s\n", s);}
static void usage()
{
printf("plugctl: [-p port}] [-n node] <plug>.<attribute>[=<value>]\n");
printf("The equal sign determines whether you want to get or set the value\n");
printf("of a plug's attribute.\n");
printf("<plug> is one of oMPR, iMPR, oPCR[n], or iPCR[n] (case insensitive).\n");
printf("Please supply a numerical index for [n]!\n");
}
int main(int argc, const char** argv)
{
raw1394handle_t handle;
struct iec61883_oMPR o_mpr;
struct iec61883_oPCR o_pcr;
struct iec61883_iMPR i_mpr;
struct iec61883_iPCR i_pcr;
int result = 0;
int port = 0;
int node = 0xffc0;
int is_got_ompr = 0, is_got_opcr[32], is_got_impr = 0, is_got_ipcr[32];
int is_set_ompr = 0, is_set_opcr[32], is_set_impr = 0, is_set_ipcr[32];
int i;
if (argc == 1) {
usage();
return 0;
}
for (i = 0; i < 32; i++) {
is_got_opcr[i] = is_got_ipcr[i] = 0;
is_set_opcr[i] = is_set_ipcr[i] = 0;
}
for (i = 1; i < argc; i++)
{
if (strcmp (argv[i], "-p") == 0)
port = atoi (argv[++i]);
}
if (!(handle = raw1394_new_handle_on_port(port))) {
perror("raw1394 - couldn't get handle");
printf("This error usually means that the raw1394 driver is not loaded or that /dev/raw1394 does not exist.\n");
return EFAULT;
}
for (i = 1; i < argc && result == 0; i++)
{
if (strcmp (argv[i], "-n") == 0) {
node |= atoi (argv[++i]);
} else if (strncmp (argv[i], "-h", 2) == 0) {
usage();
return 0;
} else {
char *plug = strdup (argv[i]);
char *attribute = strchr (plug, '.');
if (attribute != NULL) {
char *valuestr = strchr (attribute, '=');
*attribute++ = '\0';
if (valuestr != NULL) {
/* set */
int value;
*valuestr++ = '\0';
value = atoi (valuestr);
if (strcasecmp (plug, "ompr") == 0) {
if (!is_got_ompr) {
result = iec61883_get_oMPR (handle, node, &o_mpr);
if (result < 0)
continue;
is_got_ompr = 1;
}
is_set_ompr = 1;
if (strcasecmp (attribute, "data_rate") == 0) {
o_mpr.data_rate = value;
} else if (strcasecmp (attribute, "bcast_channel") == 0) {
o_mpr.bcast_channel = value;
} else if (strcasecmp (attribute, "non_persist_ext") == 0) {
o_mpr.non_persist_ext = value;
} else if (strcasecmp (attribute, "persist_ext") == 0) {
o_mpr.persist_ext = value;
} else if (strcasecmp (attribute, "reserved") == 0) {
o_mpr.reserved = value;
} else if (strcasecmp (attribute, "n_plugs") == 0) {
o_mpr.n_plugs = value;
} else {
result = EINVAL;
continue;
}
} else if (strcasecmp (plug, "impr") == 0) {
if (!is_got_impr) {
result = iec61883_get_iMPR (handle, node, &i_mpr);
if (result < 0)
continue;
is_got_impr = 1;
}
is_set_impr = 1;
if (strcasecmp (attribute, "data_rate") == 0) {
i_mpr.data_rate = value;
} else if (strcasecmp (attribute, "reserved") == 0) {
i_mpr.reserved = value;
} else if (strcasecmp (attribute, "non_persist_ext") == 0) {
i_mpr.non_persist_ext = value;
} else if (strcasecmp (attribute, "persist_ext") == 0) {
i_mpr.persist_ext = value;
} else if (strcasecmp (attribute, "reserved2") == 0) {
i_mpr.reserved2 = value;
} else if (strcasecmp (attribute, "n_plugs") == 0) {
i_mpr.n_plugs = value;
} else {
result = EINVAL;
continue;
}
} else if (strncasecmp (plug, "opcr[", 5) == 0) {
int idx = atoi (plug + 5);
if (!is_got_opcr[idx]) {
result = iec61883_get_oPCRX (handle, node, &o_pcr, idx);
if (result < 0)
continue;
is_got_opcr[idx] = 1;
}
is_set_opcr[idx] = 1;
if (strcasecmp (attribute, "online") == 0) {
o_pcr.online = value;
} else if (strcasecmp (attribute, "bcast_connection") == 0) {
o_pcr.bcast_connection = value;
} else if (strcasecmp (attribute, "n_p2p_connections") == 0) {
o_pcr.n_p2p_connections = value;
} else if (strcasecmp (attribute, "reserved") == 0) {
o_pcr.reserved = value;
} else if (strcasecmp (attribute, "channel") == 0) {
o_pcr.channel = value;
} else if (strcasecmp (attribute, "data_rate") == 0) {
o_pcr.data_rate = value;
} else if (strcasecmp (attribute, "overhead_id") == 0) {
o_pcr.overhead_id = value;
} else if (strcasecmp (attribute, "payload") == 0) {
o_pcr.payload = value;
} else {
result = EINVAL;
continue;
}
} else if (strncasecmp (plug, "ipcr[", 5) == 0) {
int idx = atoi (plug + 5);
if (!is_got_ipcr[idx]) {
result = iec61883_get_iPCRX (handle, node, &i_pcr, idx);
if (result < 0)
continue;
is_got_ipcr[idx] = 1;
}
is_set_ipcr[idx] = 1;
if (strcasecmp (attribute, "online") == 0) {
i_pcr.online = value;
} else if (strcasecmp (attribute, "bcast_connection") == 0) {
i_pcr.bcast_connection = value;
} else if (strcasecmp (attribute, "n_p2p_connections") == 0) {
i_pcr.n_p2p_connections = value;
} else if (strcasecmp (attribute, "reserved") == 0) {
i_pcr.reserved = value;
} else if (strcasecmp (attribute, "channel") == 0) {
i_pcr.channel = value;
} else if (strcasecmp (attribute, "reserved2") == 0) {
i_pcr.reserved2 = value;
} else {
result = EINVAL;
continue;
}
} else {
result = EINVAL;
continue;
}
} else {
/* get */
if (strcasecmp (plug, "ompr") == 0) {
result = iec61883_get_oMPR (handle, node, &o_mpr);
if (result < 0)
continue;
if (strcasecmp (attribute, "data_rate") == 0) {
printf ("%d\n", o_mpr.data_rate);
} else if (strcasecmp (attribute, "bcast_channel") == 0) {
printf ("%d\n", o_mpr.bcast_channel);
} else if (strcasecmp (attribute, "non_persist_ext") == 0) {
printf ("%d\n", o_mpr.non_persist_ext);
} else if (strcasecmp (attribute, "persist_ext") == 0) {
printf ("%d\n", o_mpr.persist_ext);
} else if (strcasecmp (attribute, "reserved") == 0) {
printf ("%d\n", o_mpr.reserved);
} else if (strcasecmp (attribute, "n_plugs") == 0) {
printf ("%d\n", o_mpr.n_plugs);
} else {
result = EINVAL;
continue;
}
} else if (strcasecmp (plug, "impr") == 0) {
result = iec61883_get_iMPR (handle, node, &i_mpr);
if (result < 0)
continue;
if (strcasecmp (attribute, "data_rate") == 0) {
printf ("%d\n", i_mpr.data_rate);
} else if (strcasecmp (attribute, "reserved") == 0) {
printf ("%d\n", i_mpr.reserved);
} else if (strcasecmp (attribute, "non_persist_ext") == 0) {
printf ("%d\n", i_mpr.non_persist_ext);
} else if (strcasecmp (attribute, "persist_ext") == 0) {
printf ("%d\n", i_mpr.persist_ext);
} else if (strcasecmp (attribute, "reserved2") == 0) {
printf ("%d\n", i_mpr.reserved2);
} else if (strcasecmp (attribute, "n_plugs") == 0) {
printf ("%d\n", i_mpr.n_plugs);
} else {
result = EINVAL;
continue;
}
} else if (strncasecmp (plug, "opcr[", 5) == 0) {
int idx = atoi (plug + 5);
result = iec61883_get_oPCRX (handle, node, &o_pcr, idx);
if (result < 0)
continue;
if (strcasecmp (attribute, "online") == 0) {
printf ("%d\n", o_pcr.online);
} else if (strcasecmp (attribute, "bcast_connection") == 0) {
printf ("%d\n", o_pcr.bcast_connection);
} else if (strcasecmp (attribute, "n_p2p_connections") == 0) {
printf ("%d\n", o_pcr.n_p2p_connections);
} else if (strcasecmp (attribute, "reserved") == 0) {
printf ("%d\n", o_pcr.reserved);
} else if (strcasecmp (attribute, "channel") == 0) {
printf ("%d\n", o_pcr.channel);
} else if (strcasecmp (attribute, "data_rate") == 0) {
printf ("%d\n", o_pcr.data_rate);
} else if (strcasecmp (attribute, "overhead_id") == 0) {
printf ("%d\n", o_pcr.overhead_id);
} else if (strcasecmp (attribute, "payload") == 0) {
printf ("%d\n", o_pcr.payload);
} else {
result = EINVAL;
continue;
}
} else if (strncasecmp (plug, "ipcr[", 5) == 0) {
int idx = atoi (plug + 5);
result = iec61883_get_iPCRX (handle, node, &i_pcr, idx);
if (result < 0)
continue;
if (strcasecmp (attribute, "online") == 0) {
printf ("%d\n", i_pcr.online);
} else if (strcasecmp (attribute, "bcast_connection") == 0) {
printf ("%d\n", i_pcr.bcast_connection);
} else if (strcasecmp (attribute, "n_p2p_connections") == 0) {
printf ("%d\n", i_pcr.n_p2p_connections);
} else if (strcasecmp (attribute, "reserved") == 0) {
printf ("%d\n", i_pcr.reserved);
} else if (strcasecmp (attribute, "channel") == 0) {
printf ("%d\n", i_pcr.channel);
} else if (strcasecmp (attribute, "reserved2") == 0) {
printf ("%d\n", i_pcr.reserved2);
} else {
result = EINVAL;
continue;
}
} else {
result = EINVAL;
continue;
}
}
}
free (plug);
}
}
if (result == 0 && is_set_ompr)
result = iec61883_set_oMPR (handle, node, o_mpr);
if (result == 0 && is_set_impr)
result = iec61883_set_iMPR (handle, node, i_mpr);
for (i = 0; result == 0 && i < 32; i++) {
if (is_set_opcr[i])
result = iec61883_set_oPCRX (handle, node, o_pcr, i);
if (is_set_ipcr[i])
result = iec61883_set_iPCRX (handle, node, i_pcr, i);
}
raw1394_destroy_handle(handle);
return result;
}