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/*      -*- linux-c -*-
 *
 * Copyright (c) 2003 by Intel Corp.
 * (C) Copyright Nokia Siemens Networks 2010
 * (C) Copyright Ulrich Kleber 2011
 *
 * 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.  This
 * file and program are licensed under a BSD style license.  See
 * the Copying file included with the OpenHPI distribution for
 * full licensing terms.
 *
 * Authors:
 *     Bill Barkely 
 *     Andy Cress <arcress@users.sourceforge.net>
 *     Ulrich Kleber <ulikleber@users.sourceforge.net>
 *
 * Changes:
 * 02/26/04 ARCress - added general search for any Fan sensor.
 * 03/17/04 ARCress - changed to Temp sensor (always has Lower Major)
 * 11/03/2004  kouzmich   porting to HPI B
 * 11/25/2004  kouzmich   changed as new threshold client (first release)
 * 09/06/2010  ulikleber  New option -D to select domain
 * 01/02/2011  ulikleber  Refactoring to use glib for option parsing and
 *                        introduce common options for all clients
 *
 */

#include "oh_clients.h"

#define OH_SVN_REV "$Revision: 7659 $"

#define READ_BUF_SIZE	1024

typedef enum {
	UNKNOWN_TYPE = 0,
	LOWER_CRIT,
	LOWER_MAJOR,
	LOWER_MINOR,
	UPPER_CRIT,
	UPPER_MAJOR,
	UPPER_MINOR,
	POS_HYST,
	NEG_HYST
} ThresTypes_t;

typedef struct {
	int			rpt_ind;
	int			is_value;
	int			modify;
	SaHpiRdrT		Rdr;
	SaHpiSensorReadingT	reading;
	SaHpiSensorThresholdsT	thresholds;
} Rdr_t;

typedef struct {
	SaHpiRptEntryT	Rpt;
	int		nrdrs;
	Rdr_t		*rdrs;
} Rpt_t;

typedef enum {
	COM_UNDEF = 0,
	COM_EXIT,
	COM_HELP,
	COM_RPT,
	COM_RDR,
	COM_SENS,
	COM_MOD,
	COM_UNDO
} Com_enum_t;

typedef struct {
	char	*command_name;
	Com_enum_t	type;
} Commands_def_t;

Commands_def_t	Coms[] = {
	{ "quit",	COM_EXIT },
	{ "q",		COM_EXIT },
	{ "exit",	COM_EXIT },
	{ "help",	COM_HELP },
	{ "h",		COM_HELP },
	{ "rpt",	COM_RPT },
	{ "rdr",	COM_RDR },
	{ "sen",	COM_SENS },
	{ "mod",	COM_MOD },
	{ "undo",	COM_UNDO },
	{ NULL,		COM_UNDEF }
};

Rpt_t	*Rpts;
int	nrpts = 0;

static oHpiCommonOptionsT copt;
SaHpiSessionIdT		sessionid;

static void *resize_array(void *Ar, int item_size, int *last_num, int add_num)
/* Resize array Ar:
 *	item_size - item size (bytes)
 *	last_num  - current array size
 *	add_num   - new array size = last_num + add_num
 * Return:	new pointer
 */
{
	void	*R;
	int	new_num = *last_num + add_num;

	if (new_num <= 0)
		return((void *)NULL);
	R = malloc(item_size * new_num);
	memset(R, 0, item_size * new_num);
	if (*last_num > 0) {
		memcpy(R, Ar, *last_num * item_size);
		free(Ar);
	}
	*last_num = new_num;
	return(R);
}

static void print_value(SaHpiSensorReadingT *item, char *mes)
{
	char *val;

	if (item->IsSupported != SAHPI_TRUE)
		return;
	switch (item->Type) {
		case SAHPI_SENSOR_READING_TYPE_INT64:
			printf("%" PRId64 " %s\n", (int64_t) item->Value.SensorInt64, mes);
			return;
		case SAHPI_SENSOR_READING_TYPE_UINT64:
			printf("%" PRIu64 " %s\n", (uint64_t) item->Value.SensorUint64, mes);
			return;
		case SAHPI_SENSOR_READING_TYPE_FLOAT64:
			printf("%10.3f %s\n", item->Value.SensorFloat64, mes);
			return;
		case SAHPI_SENSOR_READING_TYPE_BUFFER:
			val = (char *)(item->Value.SensorBuffer);
			if (val != NULL)
				printf("%s %s\n", val, mes);
			return;
	}
}

static void ShowThres(SaHpiSensorThresholdsT *sensbuff)
{
	printf("    Supported Thresholds:\n");
	print_value(&(sensbuff->LowCritical), "      Lower Critical Threshold(lc):");
	print_value(&(sensbuff->LowMajor), "      Lower Major Threshold(la):");
	print_value(&(sensbuff->LowMinor), "      Lower Minor Threshold(li):");
	print_value(&(sensbuff->UpCritical), "      Upper Critical Threshold(uc):");
	print_value(&(sensbuff->UpMajor), "      Upper Major Threshold(ua):");
	print_value(&(sensbuff->UpMinor), "      Upper Minor Threshold(ui):");
	print_value(&(sensbuff->PosThdHysteresis), "      Positive Threshold Hysteresis(ph):");
	print_value(&(sensbuff->NegThdHysteresis), "      Negative Threshold Hysteresis(nh):");
	printf("\n");
}

static void show_rpt(Rpt_t *Rpt, int ind)
{
	printf("%3d RPT: id = %3d  ResourceId = %3d  Tag = %s\n",
		ind, Rpt->Rpt.EntryId, Rpt->Rpt.ResourceId, Rpt->Rpt.ResourceTag.Data);
}

static int find_rpt_by_id(SaHpiEntryIdT id)
{
	int	i;

	for (i = 0; i < nrpts; i++)
		if (Rpts[i].Rpt.EntryId == id) return(i);
	return(-1);
}

static void show_rpts(char *S)
{
	int	i, rpt;

	i = sscanf(S, "%d", &rpt);
	if (i == 1) {
		i = find_rpt_by_id(rpt);
		if (i >= 0)
			oh_print_rptentry(&(Rpts[i].Rpt), 1);
		else
			printf("No RPT for id: %d\n", rpt);
		return;
	}

	for (i = 0; i < nrpts; i++)
		show_rpt(Rpts + i, i);
}

static int find_rdr_by_id(Rpt_t *R, SaHpiEntryIdT id)
{
	int	i;

	for (i = 0; i < R->nrdrs; i++)
		if (R->rdrs[i].Rdr.RecordId == id) return(i);
	return(-1);
}

static void show_rdr(Rdr_t *Rdr, int ind)
{
	
	printf("    %3d RDR: id = %3d  Data = %s\n",
		ind, Rdr->Rdr.RecordId, Rdr->Rdr.IdString.Data);
}

static void show_sen(Rdr_t *Rdr, int rptid)
{
	if (Rdr->Rdr.RdrType != SAHPI_SENSOR_RDR)
		return;
	printf("    RPT id = %3d RDR id = %3d  sensornum = %3d  Data = %s\n",
		rptid, Rdr->Rdr.RecordId, Rdr->Rdr.RdrTypeUnion.SensorRec.Num,
		Rdr->Rdr.IdString.Data);
}

static void show_sens_for_rpt(Rpt_t *R)
{
	int	j;

	for (j = 0; j < R->nrdrs; j++) {
		show_sen(R->rdrs + j, R->Rpt.EntryId);
	}
}

static void show_rdrs_for_rpt(Rpt_t *R)
{
	int	j;

	for (j = 0; j < R->nrdrs; j++) {
		show_rdr(R->rdrs + j, j);
	}
}

static void show_rdrs(char *S)
{
	int	i, j, rpt, rdr;
	Rpt_t	*R;

	i = sscanf(S, "%d %d", &rpt, &rdr);
	if (i == 1) {
		i = find_rpt_by_id(rpt);
		if (i >= 0) {
			show_rpt(Rpts + i, i);
			show_rdrs_for_rpt(Rpts + i);
		} else
			printf("No RPT for id: %d\n", rpt);
		return;
	}
	if (i == 2) {
		i = find_rpt_by_id(rpt);
		if (i >= 0) {
			j = find_rdr_by_id(Rpts + i, rdr);
			if (j >= 0)
				oh_print_rdr(&(Rpts[i].rdrs[j].Rdr), 2);
			else
				printf("No RDR %d for rpt %d\n", rdr, rpt);
		} else
			printf("No RPT for id: %d\n", rpt);
		return;
	}

	for (i = 0, R = Rpts; i < nrpts; i++, R++) {
		show_rpt(R, i);
		show_rdrs_for_rpt(R);
	}
}

static void show_reading_value(Rpt_t *Rpt, Rdr_t *R)
{
	SaHpiSensorUnitsT	k;
	SaErrorT		rv;
	char			unit[128];

	rv = saHpiSensorReadingGet(sessionid, Rpt->Rpt.ResourceId,
		R->Rdr.RdrTypeUnion.SensorRec.Num, &(R->reading), NULL);

	if (rv != SA_OK) {
		CRIT("ERROR: saHpiSensorReadingGet returned %s", oh_lookup_error(rv));
		return;
	};
	k = R->Rdr.RdrTypeUnion.SensorRec.DataFormat.BaseUnits;
	printf("Reading value: ");
	snprintf(unit, 128, "%s", oh_lookup_sensorunits(k));
	print_value(&(R->reading), unit);
}

static void show_thresholds(Rpt_t *Rpt, Rdr_t *R)
{
	SaHpiSensorThresholdsT	buf;
	SaErrorT		rv;

	rv = saHpiSensorThresholdsGet(sessionid, Rpt->Rpt.ResourceId,
		R->Rdr.RdrTypeUnion.SensorRec.Num, &buf);
	if (rv != SA_OK) {
		CRIT("ERROR: saHpiSensorThresholdsGet returned %s", oh_lookup_error(rv));
		return;
	};
	printf("  Thresholds:\n");
	ShowThres(&buf);
	if (R->is_value == 0) {
		R->thresholds = buf;
		R->is_value = 1;
	}
}

static int find_sensor_by_num(Rpt_t *R, int num)
{
	int	i;

	for (i = 0; i < R->nrdrs; i++) {
		if (R->rdrs[i].Rdr.RdrType == SAHPI_SENSOR_RDR) {
			if (R->rdrs[i].Rdr.RdrTypeUnion.SensorRec.Num == num)
				return(i);
		}
	};
	return(-1);
}

static void show_sens(char *S)
{
	int		i, j, rpt, num;
	Rpt_t		*Rpt;
	Rdr_t		*Rdr;

	i = sscanf(S, "%d %d", &rpt, &num);
	if (i == 1) {
		i = find_rpt_by_id(rpt);
		if (i >= 0)
			show_sens_for_rpt(Rpts + i);
		return;
	}
	if (i == 2) {
		i = find_rpt_by_id(rpt);
		if (i < 0) {
			printf("No RPT for id: %d\n", rpt);
			return;
		};
		j = find_sensor_by_num(Rpts + i, num);
		if (j < 0) {
			printf("No sensor %d for rpt %d\n", num, rpt);
			return;
		};
		oh_print_rdr(&(Rpts[i].rdrs[j].Rdr), 2);
		show_reading_value(Rpts + i, Rpts[i].rdrs + j);
		show_thresholds(Rpts + i, Rpts[i].rdrs + j);
		return;
	}

	for (i = 0, Rpt = Rpts; i < nrpts; i++, Rpt++) {
		for (j = 0, Rdr = Rpt->rdrs; j < Rpt->nrdrs; Rdr++, j++)
				show_sen(Rdr, Rpt->Rpt.EntryId);
	}
}

static int get_number(char *mes, int *res)
{
	char	buf[READ_BUF_SIZE];
	char    *ret;

	printf("%s", mes);
	ret = fgets(buf, READ_BUF_SIZE, stdin);
	if (ret) return (sscanf(buf, "%d", res));
        else return -1;
}

static void set_thres_value(SaHpiSensorReadingT *R, double val)
{
	if (R->IsSupported == 0) {
		CRIT("ERROR: this threshold isn't supported");
		return;
	};
	R->Value.SensorFloat64 = val;
}

static void mod_sen(void)
{
	int			i, rpt, rdr, num;
	char			buf[READ_BUF_SIZE], *S;
	Rpt_t			*Rpt;
	Rdr_t			*Rdr;
	SaHpiSensorThresholdsT	thres;
	SaErrorT		rv;
	ThresTypes_t		type = UNKNOWN_TYPE;
	float			f;
	SaHpiEventT		event;

	i = get_number("RPT number: ", &rpt);
	if (i != 1) {
		CRIT("ERROR: no RPT number");
		return;
	};
	i = find_rpt_by_id(rpt);
	if (i < 0) {
		CRIT("ERROR: invalid RPT number");
		return;
	};
	rpt = i;
	Rpt = Rpts + rpt;
	show_sens_for_rpt(Rpt);
	i = get_number("Sensor number: ", &num);
	if (i != 1) {
		CRIT("ERROR: no Sensor number");
		return;
	};
	rdr = find_sensor_by_num(Rpt, num);
	if (rdr < 0) {
		CRIT("ERROR: invalid sensor number");
		return;
	};
	Rdr = Rpt->rdrs + rdr;
	oh_print_rdr(&(Rdr->Rdr), 2);
	show_reading_value(Rpt, Rdr);
	rv = saHpiSensorThresholdsGet(sessionid, Rpt->Rpt.ResourceId,
		Rdr->Rdr.RdrTypeUnion.SensorRec.Num, &thres);
	if (rv != SA_OK) {
		CRIT("ERROR: saHpiSensorThresholdsGet returned %s", oh_lookup_error(rv));
		return;
	};
	printf("  Thresholds:\n");
	ShowThres(&thres);
	if (Rdr->is_value == 0) {
		Rdr->thresholds = thres;
		Rdr->is_value = 1;
	};
	printf("threshold type (lc, la, li, uc, ua, ui, ph, nh): ");
	S = fgets(buf, READ_BUF_SIZE, stdin);
	while (*S == ' ') S++;
	if (strlen(S) < 2) {
		CRIT("ERROR: invalid threshold type: %s", S);
		return;
	};

	if (strncmp(S, "lc", 2) == 0) type = LOWER_CRIT;
	if (strncmp(S, "la", 2) == 0) type = LOWER_MAJOR;
	if (strncmp(S, "li", 2) == 0) type = LOWER_MINOR;
	if (strncmp(S, "uc", 2) == 0) type = UPPER_CRIT;
	if (strncmp(S, "ua", 2) == 0) type = UPPER_MAJOR;
	if (strncmp(S, "ui", 2) == 0) type = UPPER_MINOR;
	if (strncmp(S, "ph", 2) == 0) type = POS_HYST;
	if (strncmp(S, "nh", 2) == 0) type = NEG_HYST;

	if (type == UNKNOWN_TYPE) {
		CRIT("ERROR: unknown threshold type: %s", S);
		return;
	};
	
	printf("new value: ");
	S = fgets(buf, READ_BUF_SIZE, stdin);
	i = sscanf(buf, "%f", &f);
	if (i == 0) {
		CRIT("ERROR: no value");
		return;
	};
	switch (type) {
		case LOWER_CRIT:
			set_thres_value(&(thres.LowCritical), (double)f);
			break;
		case LOWER_MAJOR:
			set_thres_value(&(thres.LowMajor), (double)f);
			break;
		case LOWER_MINOR:
			set_thres_value(&(thres.LowMinor), (double)f);
			break;
		case UPPER_CRIT:
			set_thres_value(&(thres.UpCritical), (double)f);
			break;
		case UPPER_MAJOR:
			set_thres_value(&(thres.UpMajor), (double)f);
			break;
		case UPPER_MINOR:
			set_thres_value(&(thres.UpMinor), (double)f);
			break;
		case POS_HYST:
			set_thres_value(&(thres.PosThdHysteresis), (double)f);
			break;
		case NEG_HYST:
			set_thres_value(&(thres.NegThdHysteresis), (double)f);
			break;
		default:
			CRIT("ERROR: unknown threshold");
	};
	printf("\n  Nem threshold:\n");
	ShowThres(&thres);
	printf("Is it correct (yes, no)?:");
	S = fgets(buf, READ_BUF_SIZE, stdin);
	while (*S == ' ') S++;
	if (strncmp(S, "yes", 3) != 0)
		return;
	rv = saHpiSensorThresholdsSet(sessionid, Rpt->Rpt.ResourceId,
		Rdr->Rdr.RdrTypeUnion.SensorRec.Num, &thres);
	if (rv != SA_OK) {
		CRIT("ERROR: saHpiSensorThresholdsSet returned %s\n", oh_lookup_error(rv));
		return;
	};
	Rdr->modify = 1;
	for (i = 0; i < 10; i++) {
		rv = saHpiEventGet(sessionid, SAHPI_TIMEOUT_IMMEDIATE, &event,
			NULL, NULL, NULL);
		if (rv == SA_OK)
			break;
		if (copt.debug) DBG("sleep before saHpiEventGet");
		g_usleep(G_USEC_PER_SEC);
	};
	saHpiSensorThresholdsGet(sessionid, Rpt->Rpt.ResourceId,
		Rdr->Rdr.RdrTypeUnion.SensorRec.Num, &thres);
	printf("Current thresholds:\n");
	ShowThres(&thres);
}

static void undo(void)
{
	int			i, j;
	Rpt_t			*Rpt;
	Rdr_t			*Rdr;

	for (i = 0, Rpt = Rpts; i < nrpts; i++, Rpt++) {
		for (j = 0, Rdr = Rpt->rdrs; j < Rpt->nrdrs; j++, Rdr++) {
			if (Rdr->modify == 0) continue;
			saHpiSensorThresholdsSet(sessionid, Rpt->Rpt.ResourceId,
				Rdr->Rdr.RdrTypeUnion.SensorRec.Num, &(Rdr->thresholds));
			Rdr->modify = 0;
		}
	}
}

static void get_rpts(void)
{
	SaHpiEntryIdT	rptentryid, nextrptentryid;
	SaErrorT	rv;
	SaHpiRptEntryT	rptentry;
	int		n;

	rptentryid = SAHPI_FIRST_ENTRY;
	while (rptentryid != SAHPI_LAST_ENTRY) {
		rv = saHpiRptEntryGet(sessionid, rptentryid, &nextrptentryid, &rptentry);
		if (rv != SA_OK)
			break;
		n = nrpts;
		Rpts = (Rpt_t *)resize_array(Rpts, sizeof(Rpt_t), &nrpts, 1);
		rptentry.ResourceTag.Data[rptentry.ResourceTag.DataLength] = 0;
		Rpts[n].Rpt =  rptentry;
		rptentryid = nextrptentryid;
	}
}

static void get_rdrs(Rpt_t *Rpt)
{
	SaHpiRdrT		rdr;
	SaErrorT		rv;
	int			n;
	SaHpiEntryIdT		entryid;
	SaHpiEntryIdT		nextentryid;
	SaHpiResourceIdT	resourceid;

	entryid = SAHPI_FIRST_ENTRY;
	while (entryid !=SAHPI_LAST_ENTRY) {
		resourceid = Rpt->Rpt.ResourceId;
		rv = saHpiRdrGet(sessionid, resourceid, entryid, &nextentryid, &rdr);
		if (rv != SA_OK)
			break;
		n = Rpt->nrdrs;
		Rpt->rdrs = (Rdr_t *)resize_array(Rpt->rdrs, sizeof(Rdr_t), &(Rpt->nrdrs), 1);
		rdr.IdString.Data[rdr.IdString.DataLength] = 0;
		Rpt->rdrs[n].Rdr = rdr;
		entryid = nextentryid;
	}
}

static void help(void)
{
	printf("Available commands:\n");
	printf("	exit, quit, q		- exit\n");
	printf("	help, h			- this instruction\n");
	printf("	rpt			- show all RPT entries\n");
	printf("	rpt <id>		- show #id RPT entry\n");
	printf("	rdr			- show all RDR entries\n");
	printf("	rdr <rptid>		- show RDRs entries for #rptid\n");
	printf("	rdr <rptid> <rdrid>	- show #rdrid RDR entry for #rptid\n");
	printf("	sen			- show all sensors\n");
	printf("	sen <rptid>		- show sensors for #rptid\n");
	printf("	sen <rptid> <num>	- show #num sensor for #rptid\n");
	printf("	mod			- modify thresholds\n");
	printf("	undo			- delete all changes\n");
}

static Com_enum_t find_command(char *S)
{
	int	i;

	for (i = 0;; i++) {
		if (Coms[i].command_name == (char *)NULL)
			return(COM_UNDEF);
		if (strcmp(Coms[i].command_name, S) == 0)
			return(Coms[i].type);
	}
}

static int parse_command(char *Str)
{
	int		len;
	char		*S, *S1;
	Com_enum_t	com;

	// EOF
	if (!Str) return(-1);

	S = Str;
	while (*S != 0) {
		if ((*S == '\t') || (*S == '\n')) *S = ' ';
		S++;
	};

	S = Str;
	while (*S == ' ') S++;
	len = strlen(S);
	if (len == 0) return(0);

	S1 = S;
	while ((*S1 != 0) && (*S1 != ' ')) S1++;
	if (*S1 != 0) 
		*S1++ = 0;
	
	com = find_command(S);
	switch (com) {
		case COM_UNDEF:
			printf("Invalid command: %s\n", S);
			help();
			break;
		case COM_EXIT:	return(-1);
		case COM_RPT:	show_rpts(S1); break;
		case COM_RDR:	show_rdrs(S1); break;
		case COM_SENS:	show_sens(S1); break;
		case COM_MOD:	mod_sen(); break;
		case COM_UNDO:	undo(); break;
		case COM_HELP:	help(); break;
	};
	return(0);
}
	
int main(int argc, char **argv)
{
	int		i;
	SaErrorT	rv;
	char		buf[READ_BUF_SIZE];
	char		*S;
        GOptionContext  *context;

        /* Print version strings */
	oh_prog_version(argv[0]);

        /* Parsing options */
        static char usetext[]="- Display sensors and sensor info\n  "
                              OH_SVN_REV; 
        OHC_PREPARE_REVISION(usetext);
        context = g_option_context_new (usetext);

        if (!ohc_option_parse(&argc, argv, 
                context, &copt, 
                OHC_ALL_OPTIONS 
                    - OHC_ENTITY_PATH_OPTION //TODO: Feature 880127
                    - OHC_VERBOSE_OPTION )) {    // no verbose mode implemented
                g_option_context_free (context);
		return 1;
	}
        g_option_context_free (context);
 
        rv = ohc_session_open_by_option ( &copt, &sessionid);
	if (rv != SA_OK) return rv;
	
	rv = saHpiDiscover(sessionid);

	if (copt.debug) DBG("saHpiDiscover: %s", oh_lookup_error(rv));

	rv = saHpiSubscribe(sessionid);
	if (rv != SA_OK) {
		CRIT( "saHpiSubscribe error %d",rv);
		return rv;
	}	
	
	/* make the RPT list */
	get_rpts();
	/* get rdrs for the RPT list */
	for (i = 0; i < nrpts; i++)
		get_rdrs(Rpts + i);

	help();
	for (;;) {
		printf("==> ");
		S = fgets(buf, READ_BUF_SIZE, stdin);
		if (parse_command(S) < 0) break;
	};
	rv = saHpiSessionClose(sessionid);
	return(0);
}
 /* end hpthres.c */