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source: soft/giet_vm/giet_libs/stdio.c @ 619

Last change on this file since 619 was 614, checked in by bellefin, 9 years ago
Change the syscalls related to the NIC and the CMA 1) In a CHBUF, every buffer is linked to a variable called “status” which is equal to 1 if the buffer is full or 0 if it is empty. The status occupies 64 bytes to simplify cache coherence 2) The CHBUF descriptor now contains the physical addresses of the buffer and its status. It only occupies 64 bits.
Property svn:executable set to ``*
File size: 32.5 KB

Rev	Line
[521]	1	//////////////////////////////////////////////////////////////////////////////
[258]	2	// File : stdio.c
	3	// Date : 01/04/2010
	4	// Author : alain greiner & Joel Porquet
	5	// Copyright (c) UPMC-LIP6
[521]	6	//////////////////////////////////////////////////////////////////////////////
[258]	7
	8	#include <stdarg.h>
	9	#include <stdio.h>
[267]	10	#include <giet_config.h>
[258]	11
[521]	12	//////////////////////////////////////////////////////////////////////////////
	13	///////////////////// MIPS32 related system calls ///////////////////////
	14	//////////////////////////////////////////////////////////////////////////////
[390]	15
[438]	16	////////////////////////////////////////////
[431]	17	void giet_proc_xyp( unsigned int* cluster_x,
	18	unsigned int* cluster_y,
	19	unsigned int* lpid )
[390]	20	{
[438]	21	sys_call( SYSCALL_PROC_XYP,
[431]	22	(unsigned int)cluster_x,
	23	(unsigned int)cluster_y,
	24	(unsigned int)lpid,
	25	0 );
[390]	26	}
	27
[438]	28	////////////////////////////
	29	unsigned int giet_proctime()
[390]	30	{
[438]	31	return (unsigned int)sys_call( SYSCALL_PROC_TIME,
	32	0, 0, 0, 0 );
[390]	33	}
	34
[438]	35	////////////////////////
	36	unsigned int giet_rand()
[390]	37	{
[438]	38	unsigned int x = (unsigned int)sys_call( SYSCALL_PROC_TIME,
	39	0, 0, 0, 0);
[390]	40	if ((x & 0xF) > 7)
	41	{
	42	return (x*x & 0xFFFF);
	43	}
	44	else
	45	{
	46	return (xxx & 0xFFFF);
	47	}
	48	}
	49
[521]	50	//////////////////////////////////////////////////////////////////////////////
	51	///////////////////// Task context system calls /////////////////////////////
	52	//////////////////////////////////////////////////////////////////////////////
[438]	53
	54	////////////////////////////////
	55	unsigned int giet_proc_task_id()
	56	{
	57	return (unsigned int)sys_call( SYSCALL_LOCAL_TASK_ID,
	58	0, 0, 0, 0 );
	59	}
	60
	61	//////////////////////////////////
	62	unsigned int giet_global_task_id()
	63	{
	64	return (unsigned int)sys_call( SYSCALL_GLOBAL_TASK_ID,
	65	0, 0, 0, 0 );
	66	}
	67
	68	/////////////////////////////
	69	unsigned int giet_thread_id()
	70	{
	71	return (unsigned int)sys_call( SYSCALL_THREAD_ID,
	72	0, 0, 0, 0 );
	73	}
	74
	75
[521]	76	//////////////////////////////////////////////////////////////////////////////
	77	///////////////////// Coprocessors system calls ////////////////////////////
	78	//////////////////////////////////////////////////////////////////////////////
[295]	79
[521]	80	///////////////////////////////////////////////////
	81	void giet_coproc_alloc( unsigned int coproc_type,
[558]	82	unsigned int* coproc_info )
[521]	83	{
	84	if ( sys_call( SYSCALL_COPROC_ALLOC,
	85	coproc_type,
	86	(unsigned int)coproc_info,
[558]	87	0, 0 ) )
[521]	88	giet_exit("error in giet_coproc_alloc()");
	89	}
	90
[558]	91	/////////////////////////////////////////////////////////
	92	void giet_coproc_release( unsigned int coproc_reg_index )
[521]	93	{
	94	if ( sys_call( SYSCALL_COPROC_RELEASE,
[558]	95	coproc_reg_index,
[521]	96	0, 0, 0 ) )
	97	giet_exit("error in giet_coproc_release()");
	98	}
	99
	100	//////////////////////////////////////////////////////////////////
[558]	101	void giet_coproc_channel_init( unsigned int channel,
[521]	102	giet_coproc_channel_t* desc )
	103	{
	104	if ( sys_call( SYSCALL_COPROC_CHANNEL_INIT,
	105	channel,
	106	(unsigned int)desc,
	107	0, 0 ) )
[558]	108	giet_exit("error in giet_coproc_channel_init()");
[521]	109	}
	110
[558]	111	/////////////////////////////////////////////////////
	112	void giet_coproc_run( unsigned int coproc_reg_index )
[521]	113	{
[558]	114	if ( sys_call( SYSCALL_COPROC_RUN,
	115	coproc_reg_index,
	116	0, 0, 0 ) )
	117	giet_exit("error in giet_coproc_run()");
[521]	118	}
	119
[558]	120	////////////////////////////
	121	void giet_coproc_completed()
[521]	122	{
	123	if ( sys_call( SYSCALL_COPROC_COMPLETED,
[558]	124	0, 0, 0, 0 ) )
[521]	125	giet_exit("error in giet_coproc_completed");
	126	}
	127
	128
	129	//////////////////////////////////////////////////////////////////////////////
	130	///////////////////// TTY device related system calls ///////////////////////
	131	//////////////////////////////////////////////////////////////////////////////
	132
[438]	133	/////////////////////
	134	void giet_tty_alloc()
[258]	135	{
[521]	136	if ( sys_call( SYSCALL_TTY_ALLOC,
	137	0, 0, 0, 0 ) ) giet_exit("error in giet_tty_alloc()");
[438]	138	}
[258]	139
[438]	140	////////////////////////////////////////////////////////////////////////
	141	static int __printf( char* format, unsigned int channel, va_list* args)
	142	{
	143	int ret; // return value from the syscall
[580]	144	enum TModifiers {NO_MOD, L_MOD, LL_MOD} modifiers;
[438]	145
[295]	146	printf_text:
[258]	147
[295]	148	while (*format)
[258]	149	{
[295]	150	unsigned int i;
	151	for (i = 0 ; format[i] && (format[i] != '%') ; i++);
	152	if (i)
	153	{
	154	ret = sys_call(SYSCALL_TTY_WRITE,
	155	(unsigned int)format,
	156	i,
	157	channel,
[258]	158	0);
	159
[295]	160	if (ret != i) goto return_error;
	161
	162	format += i;
[258]	163	}
[295]	164	if (*format == '%')
[258]	165	{
[295]	166	format++;
[580]	167	modifiers = NO_MOD;
[295]	168	goto printf_arguments;
[258]	169	}
	170	}
	171
[345]	172	return 0;
[295]	173
	174	printf_arguments:
	175
[258]	176	{
[580]	177	char buf[30];
[295]	178	char * pbuf;
	179	unsigned int len = 0;
	180	static const char HexaTab[] = "0123456789ABCDEF";
	181	unsigned int i;
[580]	182
	183	/* Ignored fields : width and precision */
	184	for (; format >= '0' && format <= '9'; format++);
[258]	185
[295]	186	switch (*format++)
[258]	187	{
[580]	188	case ('%'):
[295]	189	case ('c'): /* char conversion */
[258]	190	{
[345]	191	int val = va_arg( *args, int );
[588]	192	if (modifiers != NO_MOD) goto return_error; // Modifiers have no meaning
[580]	193
[295]	194	len = 1;
	195	buf[0] = val;
	196	pbuf = &buf[0];
	197	break;
[258]	198	}
[580]	199	case ('d'): /* decimal signed integer */
[258]	200	{
[345]	201	int val = va_arg( *args, int );
[580]	202
[588]	203	if (modifiers == LL_MOD) goto return_error; // 64 bits not supported
[580]	204
[295]	205	if (val < 0)
	206	{
	207	val = -val;
	208	ret = sys_call(SYSCALL_TTY_WRITE,
	209	(unsigned int)"-",
	210	1,
	211	channel,
	212	0);
	213	if (ret != 1) goto return_error;
	214	}
	215	for(i = 0; i < 10; i++)
	216	{
	217	buf[9 - i] = HexaTab[val % 10];
	218	if (!(val /= 10)) break;
	219	}
	220	len = i + 1;
	221	pbuf = &buf[9 - i];
	222	break;
[258]	223	}
[580]	224	case ('u'): /* decimal unsigned integer */
[295]	225	{
[580]	226	if (modifiers != LL_MOD) //32 bits integer
[295]	227	{
[580]	228	unsigned int val = va_arg( *args, unsigned int );
	229	for(i = 0; i < 10; i++)
	230	{
	231	buf[9 - i] = HexaTab[val % 10];
	232	if (!(val /= 10)) break;
	233	}
	234	len = i + 1;
	235	pbuf = &buf[9 - i];
	236	break;
[295]	237	}
[580]	238	//64 bits : base 10 unsupported : continue to hexa
[295]	239	}
[580]	240	case ('x'):
	241	case ('X'): /* hexadecimal integer */
[295]	242	{
[580]	243	unsigned long long val;
	244	int imax;
	245
	246	if (modifiers == LL_MOD) //64 bits
[295]	247	{
[580]	248	val = va_arg( *args, unsigned long long);
	249
	250	if (*(format-1) == 'u' && (!(val & 0xFFFFFFFF00000000))) //if asked to print in base 10, can do only if it fits in 32 bits
	251	{
	252	unsigned int uintv = (unsigned int) val;
	253
	254	for(i = 0; i < 10; i++)
	255	{
	256	buf[9 - i] = HexaTab[uintv % 10];
	257	if (!(uintv /= 10)) break;
	258	}
	259	len = i + 1;
	260	pbuf = &buf[9 - i];
	261	break;
	262	}
	263
	264	imax = 16;
[295]	265	}
[580]	266	else //32 bits
	267	{
	268	val = va_arg( *args, unsigned int);
	269	imax = 8;
	270	}
	271
[295]	272	ret = sys_call(SYSCALL_TTY_WRITE,
	273	(unsigned int)"0x",
	274	2,
	275	channel,
	276	0);
	277	if (ret != 2) goto return_error;
[580]	278
	279	for(i = 0; i < imax; i++)
[295]	280	{
[580]	281	buf[(imax-1) - i] = HexaTab[val % 16];
[295]	282	if (!(val /= 16)) break;
	283	}
	284	len = i + 1;
[580]	285	pbuf = &buf[(imax-1) - i];
[295]	286	break;
	287	}
	288	case ('s'): /* string */
	289	{
[345]	290	char* str = va_arg( args, char );
[580]	291
[588]	292	if (modifiers != NO_MOD) goto return_error; // Modifiers have no meaning
[580]	293
[295]	294	while (str[len])
	295	{
	296	len++;
	297	}
	298	pbuf = str;
	299	break;
	300	}
[580]	301	case ('e'):
	302	case ('f'):
	303	case ('g'): /* IEEE754 64 bits */
	304	{
	305
	306	double vald = va_arg( *args, double);
	307
	308	unsigned long long
	309	val = (unsigned long long)&vald, //get ieee754 without conversion
	310	digits = val & 0xFFFFFFFFFFFFF; //get mantissa
	311
	312	unsigned int
	313	base = (unsigned int)((val & 0x7FF0000000000000) >> 52), //get exposant
	314	intp = (unsigned int)vald, //get integer part of the float
	315	decp;
	316
	317	int isvalue = 0;
	318
	319	if (base == 0x7FF) //special value
	320	{
	321	if (digits & 0xFFFFFFFFFFFFF)
	322	{
	323	/* Not a Number */
	324	buf[0] = 'N';
	325	buf[1] = 'a';
	326	buf[2] = 'N';
	327	len = 3;
	328	pbuf = buf;
	329	}
	330	else
	331	{
	332	/* inf */
	333	buf[0] = (val & 0x8000000000000000) ? '-' : '+';
	334	buf[1] = 'i';
	335	buf[2] = 'n';
	336	buf[3] = 'f';
	337	len = 4;
	338	pbuf = buf;
	339	}
	340	break;
	341	}
	342
	343	if (val & 0x8000000000000000)
	344	{
	345	/* negative */
	346	ret = sys_call(SYSCALL_TTY_WRITE,
	347	(unsigned int)"-",
	348	1,
	349	channel,
	350	0);
	351	if (ret != 1) goto return_error;
	352	vald = vald * -1;
	353	}
	354	else
	355	{
	356	/* positive */
	357	ret = sys_call(SYSCALL_TTY_WRITE,
	358	(unsigned int)"+",
	359	1,
	360	channel,
	361	0);
	362	if (ret != 1) goto return_error;
	363	}
	364
	365	if (vald > 0xFFFFFFFF)
	366	{
	367	/* overflow */
	368	buf[0] = 'B';
	369	buf[1] = 'I';
	370	buf[2] = 'G';
	371	len = 3;
	372	pbuf = buf;
	373	break;
	374	}
	375
	376	vald -= (double)intp;
[581]	377	decp = (unsigned int)(vald * 1000000000);
[580]	378
	379	for(i = 0; i < 10; i++)
	380	{
	381	if ((!isvalue) && (intp % 10)) isvalue = 1;
	382	buf[9 - i] = HexaTab[intp % 10];
	383	if (!(intp /= 10)) break;
	384	}
	385	pbuf = &buf[9 - i];
	386	len = i+11;
	387	buf[10] = '.';
	388
	389	for(i = 0; i < 9; i++)
	390	{
	391	if ((!isvalue) && (decp % 10)) isvalue = 1;
	392	buf[19 - i] = HexaTab[decp % 10];
	393	decp /= 10;
	394	}
	395
	396	if (!isvalue)
	397	{
	398	if (vald != 0)
	399	{
	400	/* underflow */
	401	buf[0] = 'T';
	402	buf[1] = 'I';
	403	buf[2] = 'N';
	404	buf[3] = 'Y';
	405	len = 4;
	406	pbuf = buf;
	407	}
	408	}
	409
	410	break;
	411	}
	412	case ('l'):
	413	switch (modifiers)
	414	{
	415	case NO_MOD:
	416	modifiers = L_MOD;
	417	goto printf_arguments;
	418
	419	case L_MOD:
	420	modifiers = LL_MOD;
	421	goto printf_arguments;
	422
	423	default:
	424	goto return_error;
	425	}
	426
	427	/* Ignored fields : width and precision */
	428	case ('.'): goto printf_arguments;
	429
[295]	430	default:
	431	goto return_error;
[258]	432	}
	433
[295]	434	ret = sys_call(SYSCALL_TTY_WRITE,
	435	(unsigned int)pbuf,
	436	len,
	437	channel,
	438	0);
	439	if (ret != len) goto return_error;
	440
	441	goto printf_text;
[258]	442	}
	443
[295]	444	return_error:
[345]	445	return 1;
	446	} // end __printf()
[295]	447
[345]	448
	449	////////////////////////////////////////
	450	void giet_tty_printf( char* format, ...)
	451	{
	452	va_list args;
	453
	454	va_start( args, format );
	455	int ret = __printf(format, 0xFFFFFFFF, &args);
[295]	456	va_end( args );
[345]	457
	458	if (ret)
	459	{
[382]	460	giet_exit("ERROR in giet_tty_printf()");
[345]	461	}
[295]	462	} // end giet_tty_printf()
	463
	464	////////////////////////////////////////
	465	void giet_shr_printf( char* format, ...)
[258]	466	{
[295]	467	va_list args;
[345]	468	volatile unsigned int sr_save;
[258]	469
[295]	470	sys_call( SYSCALL_TTY_GET_LOCK,
[501]	471	0,
[295]	472	(unsigned int)&sr_save,
	473	0, 0 );
	474
[345]	475	va_start( args, format );
[501]	476	int ret = __printf(format, 0, &args);
[345]	477	va_end( args );
[258]	478
[295]	479	sys_call( SYSCALL_TTY_RELEASE_LOCK,
[501]	480	0,
[295]	481	(unsigned int)&sr_save,
	482	0, 0 );
[267]	483
[345]	484	if (ret)
[258]	485	{
[345]	486	giet_exit("error in giet_shr_printf()");
[258]	487	}
[345]	488	} // end giet_shr_printf()
[267]	489
[295]	490	/////////////////////////////////
	491	void giet_tty_getc( char * byte )
	492	{
	493	int ret;
	494
	495	do
[267]	496	{
[295]	497	ret = sys_call(SYSCALL_TTY_READ,
	498	(unsigned int)byte, // buffer address
	499	1, // number of characters
	500	0xFFFFFFFF, // channel index from task context
	501	0);
	502	if ( ret < 0 ) giet_exit("error in giet_tty_getc()");
[267]	503	}
[295]	504	while (ret != 1);
	505	}
[267]	506
[295]	507	/////////////////////////////////////
	508	void giet_tty_gets( char* buf,
	509	unsigned int bufsize )
	510	{
	511	int ret;
	512	unsigned char byte;
	513	unsigned int index = 0;
	514
	515	while (index < (bufsize - 1))
	516	{
	517	do
	518	{
	519	ret = sys_call(SYSCALL_TTY_READ,
	520	(unsigned int)(&byte),
	521	1,
	522	0xFFFFFFFF,
	523	0);
	524	if ( ret < 0 ) giet_exit("error in giet_tty_gets()");
	525	}
	526	while (ret != 1);
	527
	528	if (byte == 0x0A) /* LF */
	529	{
	530	break;
	531	}
	532	else if ((byte == 0x7F) && (index > 0)) /* DEL */
	533	{
	534	index--;
	535	}
	536	else
	537	{
	538	buf[index] = byte;
	539	index++;
	540	}
	541	}
	542	buf[index] = 0;
[258]	543	}
	544
[295]	545	///////////////////////////////////////
	546	void giet_tty_getw( unsigned int* val )
	547	{
	548	unsigned char buf[32];
	549	unsigned int string_byte = 0x00000000; // string containing one single byte
	550	unsigned int string_cancel = 0x00082008; // string containing BS/SPACE/BS
	551	unsigned int save = 0;
	552	unsigned int dec = 0;
	553	unsigned int done = 0;
	554	unsigned int overflow = 0;
	555	unsigned int length = 0;
	556	unsigned int i;
	557	unsigned int channel = 0xFFFFFFFF;
	558	int ret; // return value from syscalls
	559
	560	// get characters
	561	while (done == 0)
	562	{
	563	// read one character
	564	do
	565	{
	566	ret = sys_call( SYSCALL_TTY_READ,
	567	(unsigned int)(&string_byte),
	568	1,
	569	channel,
	570	0);
	571	if ( ret < 0 ) giet_exit("error in giet_tty_getw()");
	572	}
	573	while (ret != 1);
[258]	574
[295]	575	// analyse character
	576	if ((string_byte > 0x2F) && (string_byte < 0x3A)) /* decimal character */
	577	{
	578	buf[length] = (unsigned char)string_byte;
	579	length++;
[258]	580
[295]	581	// echo
	582	ret = sys_call( SYSCALL_TTY_WRITE,
	583	(unsigned int)(&string_byte),
	584	1,
	585	channel,
	586	0 );
	587	if ( ret < 0 ) giet_exit("error in giet_tty_gets()");
	588	}
	589	else if (string_byte == 0x0A) /* LF character */
	590	{
	591	done = 1;
	592	}
	593	else if ( (string_byte == 0x7F) \|\| /* DEL character */
	594	(string_byte == 0x08) ) /* BS character */
	595	{
	596	if ( length > 0 )
	597	{
	598	length--; // cancel the character
	599
	600	ret = sys_call( SYSCALL_TTY_WRITE,
	601	(unsigned int)(&string_cancel),
	602	3,
	603	channel,
	604	0 );
[352]	605	if ( ret < 0 ) giet_exit("error in giet_tty_getw()");
[295]	606	}
	607	}
	608
	609	// test buffer overflow
	610	if ( length >= 32 )
	611	{
	612	overflow = 1;
	613	done = 1;
	614	}
	615	} // end while characters
	616
	617	// string to int conversion with overflow detection
	618	if ( overflow == 0 )
	619	{
	620	for (i = 0; (i < length) && (overflow == 0) ; i++)
	621	{
	622	dec = dec * 10 + (buf[i] - 0x30);
	623	if (dec < save) overflow = 1;
	624	save = dec;
	625	}
	626	}
	627
	628	// final evaluation
	629	if ( overflow == 0 )
	630	{
	631	// return value
	632	*val = dec;
	633	}
	634	else
	635	{
	636	// cancel all echo characters
	637	for (i = 0; i < length ; i++)
	638	{
	639	ret = sys_call( SYSCALL_TTY_WRITE,
	640	(unsigned int)(&string_cancel),
	641	3,
	642	channel,
	643	0 );
[352]	644	if ( ret < 0 ) giet_exit("error in giet_tty_getw()");
[295]	645	}
	646	// echo character '0'
	647	string_byte = 0x30;
	648	ret = sys_call( SYSCALL_TTY_WRITE,
	649	(unsigned int)(&string_byte),
	650	1,
	651	channel,
	652	0 );
[352]	653	if ( ret < 0 ) giet_exit("error in giet_tty_getw()");
[295]	654
	655	// return 0 value
	656	*val = 0;
	657	}
	658	}
	659
	660
[258]	661	//////////////////////////////////////////////////////////////////////////////////
	662	///////////////////// TIMER related system calls ////////////////////////////////
	663	//////////////////////////////////////////////////////////////////////////////////
	664
[295]	665	///////////////////////
[438]	666	void giet_timer_alloc()
[258]	667	{
[438]	668	if ( sys_call( SYSCALL_TIM_ALLOC,
	669	0, 0, 0, 0 ) ) giet_exit("error in giet_timer_alloc()");
[258]	670	}
[295]	671
[438]	672	////////////////////////////////////////////
	673	void giet_timer_start( unsigned int period )
	674	{
	675	if ( sys_call( SYSCALL_TIM_START,
	676	period,
	677	0, 0, 0 ) ) giet_exit("error in giet_timer_start()");
	678	}
	679
[295]	680	//////////////////////
	681	void giet_timer_stop()
[258]	682	{
[438]	683	if ( sys_call( SYSCALL_TIM_STOP,
	684	0, 0, 0, 0 ) ) giet_exit("error in giet_timer_stop()");
[258]	685	}
	686
	687
	688	//////////////////////////////////////////////////////////////////////////////////
	689	/////////////// Frame buffer device related system calls ///////////////////////
	690	//////////////////////////////////////////////////////////////////////////////////
	691
[438]	692	/////////////////////////
	693	void giet_fbf_cma_alloc()
[258]	694	{
[438]	695	if ( sys_call( SYSCALL_FBF_CMA_ALLOC,
	696	0, 0, 0, 0 ) ) giet_exit("error in giet_fbf_cma_alloc()");
[258]	697	}
[295]	698
	699	///////////////////////////////////////////
[614]	700	void giet_fbf_cma_init_buf( void* buf0_vbase,
	701	void* buf1_vbase,
	702	void* sts0_vaddr,
	703	void* sts1_vaddr )
[258]	704	{
[614]	705	if ( sys_call( SYSCALL_FBF_CMA_INIT_BUF,
	706	(unsigned int)buf0_vbase,
	707	(unsigned int)buf1_vbase,
	708	(unsigned int)sts0_vaddr,
	709	(unsigned int)sts1_vaddr ) ) giet_exit("error in giet_fbf_cma_init_buf()");
	710	}
	711
	712	///////////////////////////////////////////
	713	void giet_fbf_cma_start( unsigned int length )
	714	{
[438]	715	if ( sys_call( SYSCALL_FBF_CMA_START,
[614]	716	length,
	717	0, 0, 0 ) ) giet_exit("error in giet_fbf_cma_start()");
[258]	718	}
[295]	719
[438]	720	////////////////////////////////////////////////
	721	void giet_fbf_cma_display( unsigned int buffer )
[258]	722	{
[438]	723	if ( sys_call( SYSCALL_FBF_CMA_DISPLAY,
	724	buffer,
	725	0, 0, 0 ) ) giet_exit("error in giet_fbf_cma_display()");
[258]	726	}
[295]	727
	728	////////////////////////
[438]	729	void giet_fbf_cma_stop()
[258]	730	{
[438]	731	if ( sys_call( SYSCALL_FBF_CMA_STOP,
	732	0, 0, 0, 0 ) ) giet_exit("error in giet_fbf_cma_stop()");
[258]	733	}
	734
[438]	735	//////////////////////////////////////////////
	736	void giet_fbf_sync_write( unsigned int offset,
	737	void * buffer,
	738	unsigned int length )
	739	{
	740	if ( sys_call( SYSCALL_FBF_SYNC_WRITE,
	741	offset,
	742	(unsigned int)buffer,
	743	length,
	744	0 ) ) giet_exit("error in giet_fbf_sync_write()");
	745	}
[258]	746
[438]	747	/////////////////////////////////////////////
	748	void giet_fbf_sync_read( unsigned int offset,
	749	void * buffer,
	750	unsigned int length )
	751	{
	752	if ( sys_call( SYSCALL_FBF_SYNC_READ,
	753	offset,
	754	(unsigned int)buffer,
	755	length,
	756	0 ) ) giet_exit("error in giet_fbf_sync_read()");
	757	}
	758
	759
[258]	760	//////////////////////////////////////////////////////////////////////////////////
	761	/////////////////////// NIC related system calls /////////////////////////////////
	762	//////////////////////////////////////////////////////////////////////////////////
	763
[501]	764	////////////////////////////////////////////////////
	765	unsigned int giet_nic_rx_alloc( unsigned int xmax,
	766	unsigned int ymax )
[258]	767	{
[461]	768	int channel = sys_call( SYSCALL_NIC_ALLOC,
	769	1,
[501]	770	xmax,
	771	ymax,
	772	0 );
[487]	773	if ( channel < 0 ) giet_exit("error in giet_nic_rx_alloc()");
[461]	774
[487]	775	return (unsigned int)channel;
[258]	776	}
[295]	777
[501]	778	////////////////////////////////////////////////////
	779	unsigned int giet_nic_tx_alloc( unsigned int xmax,
	780	unsigned int ymax )
[258]	781	{
[461]	782	int channel = sys_call( SYSCALL_NIC_ALLOC,
[501]	783	0,
	784	xmax,
	785	ymax,
	786	0 );
[461]	787	if ( channel < 0 ) giet_exit("error in giet_nic_tx_alloc()");
	788
[487]	789	return (unsigned int)channel;
[450]	790	}
	791
[487]	792	//////////////////////////////////////////////
	793	void giet_nic_rx_start( unsigned int channel )
[450]	794	{
[461]	795	if ( sys_call( SYSCALL_NIC_START,
	796	1,
[487]	797	channel,
	798	0, 0 ) ) giet_exit("error in giet_nic_rx_start()");
[450]	799	}
	800
[487]	801	//////////////////////////////////////////////
	802	void giet_nic_tx_start( unsigned int channel )
[450]	803	{
[461]	804	if ( sys_call( SYSCALL_NIC_START,
	805	0,
[487]	806	channel,
	807	0, 0 ) ) giet_exit("error in giet_nic_tx_start()");
[450]	808	}
	809
[461]	810	///////////////////////////////////////////////////////////
	811	void giet_nic_rx_move( unsigned int channel, void* buffer )
[450]	812	{
[461]	813	if ( sys_call( SYSCALL_NIC_MOVE,
	814	1,
	815	channel,
[438]	816	(unsigned int)buffer,
[461]	817	0 ) ) giet_exit("error in giet_nic_rx_move()");
[258]	818	}
	819
[461]	820	///////////////////////////////////////////////////////////
	821	void giet_nic_tx_move( unsigned int channel, void* buffer )
[438]	822	{
[461]	823	if ( sys_call( SYSCALL_NIC_MOVE,
	824	0,
	825	channel,
[438]	826	(unsigned int)buffer,
[461]	827	0 ) ) giet_exit("error in giet_nic_tx_move()");
[438]	828	}
	829
[487]	830	/////////////////////////////////////////////
	831	void giet_nic_rx_stop( unsigned int channel )
[450]	832	{
[461]	833	if ( sys_call( SYSCALL_NIC_STOP,
	834	1,
[487]	835	channel,
	836	0, 0 ) ) giet_exit("error in giet_nic_rx_stop()");
[450]	837	}
	838
[487]	839	/////////////////////////////////////////////
	840	void giet_nic_tx_stop( unsigned int channel )
[450]	841	{
[461]	842	if ( sys_call( SYSCALL_NIC_STOP,
	843	0,
[487]	844	channel,
	845	0, 0 ) ) giet_exit("error in giet_nic_tx_stop()");
[450]	846	}
	847
[487]	848	//////////////////////////////////////////////
	849	void giet_nic_rx_stats( unsigned int channel )
[461]	850	{
	851	if ( sys_call( SYSCALL_NIC_STATS,
	852	1,
[487]	853	channel,
	854	0, 0 ) ) giet_exit("error in giet_nic_rx_stats()");
[461]	855	}
[450]	856
[487]	857	//////////////////////////////////////////////
	858	void giet_nic_tx_stats( unsigned int channel )
[461]	859	{
	860	if ( sys_call( SYSCALL_NIC_STATS,
	861	0,
[487]	862	channel,
	863	0, 0 ) ) giet_exit("error in giet_nic_tx_stats()");
[461]	864	}
	865
[487]	866	//////////////////////////////////////////////
	867	void giet_nic_rx_clear( unsigned int channel )
[461]	868	{
	869	if ( sys_call( SYSCALL_NIC_CLEAR,
	870	1,
[487]	871	channel,
	872	0, 0 ) ) giet_exit("error in giet_nic_rx_clear()");
[461]	873	}
	874
[487]	875	//////////////////////////////////////////////
	876	void giet_nic_tx_clear( unsigned int channel )
[461]	877	{
	878	if ( sys_call( SYSCALL_NIC_CLEAR,
	879	0,
[487]	880	channel,
	881	0, 0 ) ) giet_exit("error in giet_nic_tx_clear()");
[461]	882	}
	883
	884
	885
[295]	886	///////////////////////////////////////////////////////////////////////////////////
	887	///////////////////// FAT related system calls ////////////////////////////////////
	888	///////////////////////////////////////////////////////////////////////////////////
[258]	889
[588]	890	/////////////////////////////////////////
	891	int giet_fat_open( char* pathname,
	892	unsigned int flags )
[295]	893	{
[588]	894	return sys_call( SYSCALL_FAT_OPEN,
	895	(unsigned int)pathname,
	896	flags,
	897	0, 0 );
[295]	898	}
[258]	899
[588]	900	/////////////////////////////////////////
	901	int giet_fat_close( unsigned int fd_id )
[295]	902	{
[588]	903	return sys_call( SYSCALL_FAT_CLOSE,
	904	fd_id,
	905	0, 0, 0 );
[295]	906	}
	907
[588]	908	/////////////////////////////////////////////
	909	int giet_fat_file_info( unsigned int fd_id,
	910	unsigned int* size,
	911	unsigned int* offset )
[295]	912	{
[588]	913	return sys_call( SYSCALL_FAT_FINFO,
	914	fd_id,
	915	(unsigned int)size,
	916	(unsigned int)offset,
	917	0 );
[295]	918	}
	919
[588]	920	///////////////////////////////////////
	921	int giet_fat_read( unsigned int fd_id,
	922	void* buffer,
	923	unsigned int count )
	924	{
	925	return sys_call( SYSCALL_FAT_READ,
	926	fd_id,
	927	(unsigned int)buffer,
	928	count,
	929	0 );
	930	}
	931
	932	////////////////////////////////////////
	933	int giet_fat_write( unsigned int fd_id,
[295]	934	void* buffer,
[588]	935	unsigned int count )
[258]	936	{
[295]	937	return sys_call( SYSCALL_FAT_WRITE,
[588]	938	fd_id,
[295]	939	(unsigned int)buffer,
[588]	940	count,
	941	0 );
[258]	942	}
[295]	943
[588]	944	////////////////////////////////////////
	945	int giet_fat_lseek( unsigned int fd_id,
[295]	946	unsigned int offset,
	947	unsigned int whence )
[258]	948	{
[588]	949	return sys_call( SYSCALL_FAT_LSEEK,
	950	fd_id,
	951	offset,
	952	whence,
	953	0 );
[258]	954	}
[295]	955
[588]	956	////////////////////////////////////////////
	957	int giet_fat_remove( char* pathname,
	958	unsigned int should_be_dir )
[258]	959	{
[588]	960	return sys_call( SYSCALL_FAT_REMOVE,
	961	(unsigned int)pathname,
	962	should_be_dir,
	963	0, 0 );
[258]	964	}
[295]	965
	966	/////////////////////////////////////
[588]	967	int giet_fat_rename( char* old_path,
	968	char* new_path )
[258]	969	{
[588]	970	return sys_call( SYSCALL_FAT_RENAME,
	971	(unsigned int)old_path,
	972	(unsigned int)new_path,
	973	0, 0 );
[258]	974	}
[295]	975
[588]	976	////////////////////////////////////
	977	int giet_fat_mkdir( char* pathname )
	978	{
	979	return sys_call( SYSCALL_FAT_MKDIR,
	980	(unsigned int)pathname,
	981	0, 0, 0 );
	982	}
[295]	983
[588]	984	/////////////////////////////////////
	985	int giet_fat_list( char* pathname )
	986	{
	987	return sys_call( SYSCALL_FAT_LIST,
	988	(unsigned int)pathname,
	989	0, 0, 0 );
	990	}
[295]	991
	992
[588]	993
[390]	994	//////////////////////////////////////////////////////////////////////////////////
	995	///////////////////// Miscellaneous system calls /////////////////////////////////
	996	//////////////////////////////////////////////////////////////////////////////////
	997
[295]	998	//////////////////////////////
	999	void giet_exit( char* string )
[258]	1000	{
[295]	1001	sys_call( SYSCALL_EXIT,
	1002	(unsigned int)string,
	1003	0, 0, 0 );
[258]	1004	}
[295]	1005
	1006	/////////////////////////////////////////
	1007	void giet_assert( unsigned int condition,
	1008	char* string )
[258]	1009	{
[295]	1010	if ( condition == 0 ) giet_exit( string );
[258]	1011	}
[295]	1012
[390]	1013	//////////////////////////
	1014	void giet_context_switch()
	1015	{
	1016	sys_call( SYSCALL_CTX_SWITCH,
	1017	0, 0, 0, 0 );
	1018	}
	1019
[501]	1020	/////////////////////////////////////////////////
	1021	void giet_procs_number( unsigned int* x_size,
	1022	unsigned int* y_size,
	1023	unsigned int* nprocs )
[438]	1024	{
[501]	1025	if ( sys_call( SYSCALL_PROCS_NUMBER,
	1026	(unsigned int)x_size,
	1027	(unsigned int)y_size,
	1028	(unsigned int)nprocs,
	1029	0 ) ) giet_exit("ERROR in giet_procs_number()");
[438]	1030	}
	1031
[295]	1032	////////////////////////////////////////////////////
	1033	void giet_vobj_get_vbase( char* vspace_name,
	1034	char* vobj_name,
[438]	1035	unsigned int* vbase )
[258]	1036	{
[295]	1037	if ( sys_call( SYSCALL_VOBJ_GET_VBASE,
	1038	(unsigned int) vspace_name,
	1039	(unsigned int) vobj_name,
[438]	1040	(unsigned int) vbase,
[390]	1041	0 ) ) giet_exit("ERROR in giet_vobj_get_vbase()");
[258]	1042	}
[260]	1043
[438]	1044	////////////////////////////////////////////////////
	1045	void giet_vobj_get_length( char* vspace_name,
	1046	char* vobj_name,
	1047	unsigned int* length )
[260]	1048	{
[438]	1049	if ( sys_call( SYSCALL_VOBJ_GET_LENGTH,
	1050	(unsigned int) vspace_name,
	1051	(unsigned int) vobj_name,
	1052	(unsigned int) length,
	1053	0 ) ) giet_exit("ERROR in giet_vobj_get_length()");
[260]	1054	}
	1055
[295]	1056	/////////////////////////////////////////
	1057	void giet_heap_info( unsigned int* vaddr,
[368]	1058	unsigned int* length,
	1059	unsigned int x,
	1060	unsigned int y )
[258]	1061	{
[295]	1062	if ( sys_call( SYSCALL_HEAP_INFO,
	1063	(unsigned int)vaddr,
	1064	(unsigned int)length,
[368]	1065	x,
[390]	1066	y ) ) giet_exit("ERROR in giet_heap_info()");
[258]	1067	}
	1068
[390]	1069	/////////////////////////////////////////
	1070	void giet_get_xy( void* ptr,
	1071	unsigned int* px,
	1072	unsigned int* py )
	1073	{
	1074	if ( sys_call( SYSCALL_GET_XY,
	1075	(unsigned int)ptr,
	1076	(unsigned int)px,
	1077	(unsigned int)py,
	1078	0 ) ) giet_exit("ERROR in giet_get_xy()");
	1079	}
	1080
[258]	1081	// Local Variables:
	1082	// tab-width: 4
	1083	// c-basic-offset: 4
	1084	// c-file-offsets:((innamespace . 0)(inline-open . 0))
	1085	// indent-tabs-mode: nil
	1086	// End:
	1087	// vim: filetype=c:expandtab:shiftwidth=4:tabstop=4:softtabstop=4
	1088

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