    /*====================================================================*
     *
     *   Copyright (c) 2013 Qualcomm Atheros, Inc.
     *
     *   All rights reserved.
     *
     *   Redistribution and use in source and binary forms, with or
     *   without modification, are permitted (subject to the limitations
     *   in the disclaimer below) provided that the following conditions
     *   are met:
     *
     *   * Redistributions of source code must retain the above copyright
     *     notice, this list of conditions and the following disclaimer.
     *
     *   * Redistributions in binary form must reproduce the above
     *     copyright notice, this list of conditions and the following
     *     disclaimer in the documentation and/or other materials
     *     provided with the distribution.
     *
     *   * Neither the name of Qualcomm Atheros nor the names of
     *     its contributors may be used to endorse or promote products
     *     derived from this software without specific prior written
     *     permission.
     *
     *   NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
     *   GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE
     *   COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
     *   IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     *   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     *   PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
     *   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     *   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     *   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     *   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     *   OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     *   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     *
     *--------------------------------------------------------------------*/

    /*====================================================================*
     *
     *   int6keth.c - Atheros Ethernet PHY Settings;
     *
     *
     *   Contributor(s):
     *      Charles Maier <cmaier@qca.qualcomm.com>
     *      Matthieu Poullet <m.poullet@avm.de>
     *
     *--------------------------------------------------------------------*/

    /*====================================================================*"
     *   system header files;
     *--------------------------------------------------------------------*/

    #include <unistd.h>
    #include <stdlib.h>
    #include <stdint.h>

    /*====================================================================*
     *   custom header files;
     *--------------------------------------------------------------------*/

    #include "../tools/getoptv.h"
    #include "../tools/putoptv.h"
    #include "../tools/memory.h"
    #include "../tools/number.h"
    #include "../tools/symbol.h"
    #include "../tools/types.h"
    #include "../tools/flags.h"
    #include "../tools/files.h"
    #include "../tools/error.h"
    #include "../plc/plc.h"
    #include "../ether/channel.h"
    #include "../mme/mme.h"

    /*====================================================================*
     *   custom source files;
     *--------------------------------------------------------------------*/

    #ifndef MAKEFILE
    #include "../mme/UnwantedMessage.c"
    #include "../plc/Devices.c"
    #endif

    #ifndef MAKEFILE
    #include "../tools/assist.c"
    #include "../tools/error.c"
    #include "../tools/codelist.c"
    #include "../tools/getoptv.c"
    #include "../tools/putoptv.c"
    #include "../tools/version.c"
    #include "../tools/uintspec.c"
    #include "../tools/hexdump.c"
    #include "../tools/hexencode.c"
    #include "../tools/hexdecode.c"
    #include "../tools/hexstring.c"
    #include "../tools/todigit.c"
    #include "../tools/checkfilename.c"
    #include "../tools/checksum32.c"
    #include "../tools/fdchecksum32.c"
    #include "../tools/strfbits.c"
    #include "../tools/typename.c"
    #include "../tools/lookup.c"
    #include "../tools/synonym.c"
    #include "../tools/uintspec.c"
    #endif

    #ifndef MAKEFILE
    #include "../ether/openchannel.c"
    #include "../ether/closechannel.c"
    #include "../ether/readpacket.c"
    #include "../ether/sendpacket.c"
    #include "../ether/channel.c"
    #endif

    #ifndef MAKEFILE
    #include "../mme/MMECode.c"
    #include "../mme/EthernetHeader.c"
    #include "../mme/QualcommHeader.c"
    #endif

    /*====================================================================*
     *   program constants;
     *--------------------------------------------------------------------*/

    #define MCONTROL_READ 	0x00
    #define MCONTROL_WRITE 	0x01
    #define ETH_PORT 0

    #define NEGOTIATE 	SIZEOF (negotiate)
    #define SPEEDS  	SIZEOF (speeds)
    #define DUPLEX 		SIZEOF (duplex)
    #define CONTROL 	SIZEOF (control)
    #define ADVCAP 		SIZEOF (advcap)

    static struct _code_ const negotiate [] =

    {
    	{
    		0,
    		"Off"
    	},
    	{
    		1,
    		"On"
    	}
    };

    static struct _code_ const speeds [] =

    {
    	{
    		0,
    		"10"
    	},
    	{
    		1,
    		"100"
    	},
    	{
    		2,
    		"1000"
    	}
    };

    static struct _code_ const duplex [] =

    {
    	{
    		0,
    		"Half"
    	},
    	{
    		1,
    		"Full"
    	}
    };

    static struct _code_ const control [] =

    {
    	{
    		0,
    		"Off"
    	},
    	{
    		1,
    		"Tx"
    	},
    	{
    		2,
    		"Rx"
    	},
    	{
    		3,
    		"On"
    	}
    };

    static struct _code_ const advcap [] =

    {
    	{
    		1,
    		"100Full"
    	},
    	{
    		2,
    		"100Half"
    	},
    	{
    		4,
    		"10Full"
    	},
    	{
    		8,
    		"10Half"
    	},
    	{
    		16,
    		"1000Full"
    	}
    };

    #define RATES SIZEOF (rates)
    #define MODES SIZEOF (modes)
    #define LINKS SIZEOF (links)
    #define FLOWS SIZEOF (flows)

    static char const * rates [] =

    {
    	"10",
    	"100",
    	"1000"
    };

    static char const * modes [] =

    {
    	"Half",
    	"Full"
    };

    static char const * links [] =

    {
    	"Unknown",
    	"Off",
    	"On"
    };

    static char const * flows [] =

    {
    	"Off",
    	"Tx",
    	"Rx",
    	"On"
    };

    /*====================================================================*
     *   program variables;
     *--------------------------------------------------------------------*/

    #ifndef __GNUC__
    #pragma pack (push,1)
    #endif

    typedef struct __packed phy_settings

    {
    	uint8_t MCONTROL;
    	uint8_t AUTONEGOTIATE;
    	uint8_t ADVCAPS;
    	uint8_t ESPEED;
    	uint8_t EDUPLEX;
    	uint8_t EFLOWCONTROL;
    }

    phy_settings;
    typedef struct __packed phy_readings

    {
    	uint8_t MSTATUS;
    	uint8_t ESPEED;
    	uint8_t EDUPLEX;
    	uint8_t ELINKSTATUS;
    	uint8_t EFLOWCONTROL;
    }

    phy_readings;

    #ifndef __GNUC__
    #pragma pack (pop)
    #endif

    /*====================================================================*
     *
     *   signed PHYSettings (struct channel * channel, struct phy_settings * settings, flag_t flags);
     *
     *   plc.h
     *
     *   read and display Ethernet PHY settings or write then read and
     *   display settings;
     *
     *
     *   Contributor(s):
     *      Charles Maier <cmaier@qca.qualcomm.com>
     *
     *--------------------------------------------------------------------*/

    signed PHYSettings (struct channel * channel, struct phy_settings * settings, flag_t flags)

    {
    	struct message message;
    	signed packetsize;

    #ifndef __GNUC__
    #pragma pack (push,1)
    #endif

    	struct __packed vs_enet_settings_request
    	{
    		struct ethernet_hdr ethernet;
    		struct qualcomm_hdr qualcomm;
    		uint8_t MCONTROL;
    		uint8_t AUTONEGOTIATE;
    		uint8_t ADVCAPS;
    		uint8_t ESPEED;
    		uint8_t EDUPLEX;
    		uint8_t EFLOWCONTROL;
    	}
    	* request = (struct vs_enet_settings_request *) (&message);
    	struct __packed vs_enet_settings_confirm
    	{
    		struct ethernet_hdr ethernet;
    		struct qualcomm_hdr qualcomm;
    		uint8_t MSTATUS;
    		uint8_t ESPEED;
    		uint8_t EDUPLEX;
    		uint8_t ELINKSTATUS;
    		uint8_t EFLOWCONTROL;
    	}
    	* confirm = (struct vs_enet_settings_confirm *) (&message);

    #ifndef __GNUC__
    #pragma pack (pop)
    #endif

    	char address [ETHER_ADDR_LEN * 3];
    	memset (&message, 0, sizeof (message));
    	EthernetHeader (&request->ethernet, channel->peer, channel->host, channel->type);
    	QualcommHeader (&request->qualcomm, 0, (VS_ENET_SETTINGS | MMTYPE_REQ));
    	request->MCONTROL = settings->MCONTROL;
    	request->AUTONEGOTIATE = settings->AUTONEGOTIATE;
    	request->ADVCAPS = settings->ADVCAPS;
    	request->ESPEED = settings->ESPEED;
    	request->EDUPLEX = settings->EDUPLEX;
    	request->EFLOWCONTROL = settings->EFLOWCONTROL;
    	if (sendpacket (channel, &message, (ETHER_MIN_LEN - ETHER_CRC_LEN)) < 0)
    	{
    		error (1, errno, CHANNEL_CANTSEND);
    	}
    	while ((packetsize = readpacket (channel, &message, sizeof (message))) > 0)
    	{
    		if (UnwantedMessage (&message, packetsize, 0, (VS_ENET_SETTINGS | MMTYPE_CNF)))
    		{
    			continue;
    		}
    		if ((confirm->MSTATUS == 1) || (confirm->MSTATUS == 3))
    		{
    			error (0, 0, "%s: %s (0x%0X): ", PLC_WONTDOIT, MMECode (confirm->qualcomm.MMTYPE, confirm->MSTATUS), confirm->MSTATUS);
    			continue;
    		}
    		if (_anyset (flags, PLC_ANALYSE))
    		{
    			printf ("Bits Mode Link Flow\n");
    			printf ("%4d ", confirm->ESPEED);
    			printf ("%4d ", confirm->EDUPLEX);
    			printf ("%4d ", confirm->ELINKSTATUS);
    			printf ("%4d\n", confirm->EFLOWCONTROL);
    		}
    		else
    		{
    			printf ("%s %s ", channel->ifname, hexstring (address, sizeof (address), channel->host, sizeof (channel->host)));
    			printf ("Speed=%s ", rates [confirm->ESPEED]);
    			printf ("Duplex=%s ", modes [confirm->EDUPLEX]);
    			printf ("LinkStatus=%s ", links [confirm->ELINKSTATUS]);
    			printf ("FlowControl=%s\n", flows [confirm->EFLOWCONTROL]);
    		}
    	}
    	if (packetsize < 0)
    	{
    		error (1, errno, CHANNEL_CANTREAD);
    	}
    	return (0);
    }

    /*====================================================================*
     *
     *   int main (int argc, char const * argv[]);
     *
     *   parse command line, populate plc structure and perform selected
     *   operations; show help summary if asked; see getoptv and putoptv
     *   to understand command line parsing and help summary display; see
     *   plc.h for the definition of struct plc;
     *
     *   the command line accepts multiple MAC addresses and the program
     *   performs the specified operations on each address, in turn; the
     *   address order is significant but the option order is not; the
     *   default address is a local broadcast that causes all devices on
     *   the local H1 interface to respond but not those at the remote
     *   end of the powerline;
     *
     *   the default address is 00:B0:52:00:00:01; omitting the address
     *   will automatically address the local device; some options will
     *   cancel themselves if this makes no sense;
     *
     *   the default interface is eth1 because most people use eth0 as
     *   their principle network connection; you can specify another
     *   interface with -i or define environment string PLC to make
     *   that the default interface and save typing;
     *
     *
     *--------------------------------------------------------------------*/

    int main (int argc, char const * argv [])

    {
    	extern struct channel channel;
    	static char const * optv [] =
    	{
    		"a:d:ef:i:n:p:qrs:tvw",
    		"device [device] [...] [> stdout]",
    		"Qualcomm Atheros Ethernet PHY Settings",
    		"a s\tadvertise capabilities as (s) ['1000Full'|'100Full'|'100Half'|10Full'|'10Half']",
    		"d s\tduplex setting is (s) ['half'|'full']",
    		"e\tredirect stderr to stdout",
    		"f s\tflow control is (s) ['on'|'tx'|'rx'|'off']",

    #if defined (WINPCAP) || defined (LIBPCAP)

    		"i n\thost interface is (n) [" LITERAL (CHANNEL_ETHNUMBER) "]",

    #else

    		"i s\thost interface is (s) [" LITERAL (CHANNEL_ETHDEVICE) "]",

    #endif

    		"n s\tauto-negotiate mode is (s) ['on'|'off']",
    		"p n\tport number is (n) [" LITERAL (ETH_PORT) "]",
    		"q\tquiet mode",
    		"r\tread settings instead of write settings",
    		"s s\ttransmission speed in mbps is (s) ['10'|'100'|'1000']",
    		"v\tverbose mode",
    		"w\twrite settings instead of read settings",
    		(char const *) (0)
    	};
    	struct phy_settings settings =
    	{
    		0,
    		1,
    		0,
    		0,
    		0,
    		0
    	};
    	flag_t flags = (flag_t)(0);
    	signed c;
    	if (getenv (PLCDEVICE))
    	{

    #if defined (WINPCAP) || defined (LIBPCAP)

    		channel.ifindex = atoi (getenv (PLCDEVICE));

    #else

    		channel.ifname = strdup (getenv (PLCDEVICE));

    #endif

    	}
    	optind = 1;
    	while ((c = getoptv (argc, argv, optv)) != -1)
    	{
    		switch (c)
    		{
    		case 'a':
    			if ((c = lookup (optarg, advcap, ADVCAP)) == -1)
    			{
    				assist (optarg, "capability", advcap, ADVCAP);
    			}
    			settings.ADVCAPS |= (uint8_t)(c);
    			break;
    		case 'd':
    			if ((c = lookup (optarg, duplex, DUPLEX)) == -1)
    			{
    				assist (optarg, "duplex", duplex, DUPLEX);
    			}
    			settings.EDUPLEX = (uint8_t)(c);
    			break;
    		case 'e':
    			dup2 (STDOUT_FILENO, STDERR_FILENO);
    			break;
    		case 'f':
    			if ((c = lookup (optarg, control, CONTROL)) == -1)
    			{
    				assist (optarg, "control", control, CONTROL);
    			}
    			settings.EFLOWCONTROL = (uint8_t)(c);
    			break;
    		case 'n':
    			if ((c = lookup (optarg, negotiate, NEGOTIATE)) == -1)
    			{
    				assist (optarg, "auto-negotiate", negotiate, NEGOTIATE);
    			}
    			settings.AUTONEGOTIATE = (uint8_t)(c);
    			break;
    		case 's':
    			if ((c = lookup (optarg, speeds, SPEEDS)) == -1)
    			{
    				assist (optarg, "speed", speeds, SPEEDS);
    			}
    			settings.ESPEED = (uint8_t)(c);
    			break;
    		case 't':
    			_setbits (flags, PLC_ANALYSE);
    			break;
    		case 'i':

    #if defined (WINPCAP) || defined (LIBPCAP)

    			channel.ifindex = atoi (optarg);

    #else

    			channel.ifname = optarg;

    #endif

    			break;
    		case 'p':
    			settings.MCONTROL &= 0x0F;
    			settings.MCONTROL |= (unsigned)(uintspec (optarg, 0, 7)) << 4;
    			break;
    		case 'q':
    			_setbits (channel.flags, CHANNEL_SILENCE);
    			break;
    		case 'r':
    			settings.MCONTROL &= 0xF0;
    			settings.MCONTROL |= 0x00;
    			break;
    		case 'v':
    			_setbits (channel.flags, CHANNEL_VERBOSE);
    			break;
    		case 'w':
    			settings.MCONTROL &= 0xF0;
    			settings.MCONTROL |= 0x01;
    			break;
    		default:
    			break;
    		}
    	}
    	argc -= optind;
    	argv += optind;
    	openchannel (&channel);
    	if (!argc)
    	{
    		PHYSettings (&channel, &settings, flags);
    	}
    	while ((argc) && (* argv))
    	{
    		if (!hexencode (channel.peer, sizeof (channel.peer), synonym (* argv, devices, SIZEOF (devices))))
    		{
    			error (1, errno, PLC_BAD_MAC, * argv);
    		}
    		PHYSettings (&channel, &settings, flags);
    		argc--;
    		argv++;
    	}
    	closechannel (&channel);
    	exit (0);
    }

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