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source: soft/giet_vm/giet_libs/stdio.c @ 549

Last change on this file since 549 was 521, checked in by alain, 10 years ago
Introducing in the stdio.c / stdio.h files the system calls related to the hardware coprocessors configuration and use.
Property svn:executable set to ``*
File size: 28.2 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,
	82	unsigned int* coproc_info,
	83	unsigned int* cluster_xy )
	84	{
	85	if ( sys_call( SYSCALL_COPROC_ALLOC,
	86	coproc_type,
	87	(unsigned int)coproc_info,
	88	(unsigned int)cluster_xy,
	89	0 ) )
	90	giet_exit("error in giet_coproc_alloc()");
	91	}
	92
	93	///////////////////////////////////////////////////
	94	void giet_coproc_release( unsigned int cluster_xy )
	95	{
	96	if ( sys_call( SYSCALL_COPROC_RELEASE,
	97	cluster_xy,
	98	0, 0, 0 ) )
	99	giet_exit("error in giet_coproc_release()");
	100	}
	101
	102	//////////////////////////////////////////////////////////////////
	103	void giet_coproc_channel_init( unsigned int cluster_xy,
	104	unsigned int channel,
	105	giet_coproc_channel_t* desc )
	106	{
	107	if ( sys_call( SYSCALL_COPROC_CHANNEL_INIT,
	108	cluster_xy,
	109	channel,
	110	(unsigned int)desc,
	111	0 ) )
	112	giet_exit("error in giet_coproc_channel_init");
	113	}
	114
	115	////////////////////////////////////////////////////////////
	116	void giet_coproc_channel_start( unsigned int cluster_xy,
	117	unsigned int channel )
	118	{
	119	if ( sys_call( SYSCALL_COPROC_CHANNEL_START,
	120	cluster_xy,
	121	channel,
	122	0, 0 ) )
	123	giet_exit("error in giet_coproc_channel_start");
	124	}
	125
	126	///////////////////////////////////////////////////////////
	127	void giet_coproc_channel_stop( unsigned int cluster_xy,
	128	unsigned int channel )
	129	{
	130	if ( sys_call( SYSCALL_COPROC_CHANNEL_STOP,
	131	cluster_xy,
	132	channel,
	133	0, 0 ) )
	134	giet_exit("error in giet_coproc_channel_stop");
	135	}
	136
	137	/////////////////////////////////////////////////////////
	138	void giet_coproc_completed( unsigned int cluster_xy )
	139	{
	140	if ( sys_call( SYSCALL_COPROC_COMPLETED,
	141	cluster_xy,
	142	0, 0, 0 ) )
	143	giet_exit("error in giet_coproc_completed");
	144	}
	145
	146	///////////////////////////////////////////////////////////
	147	void giet_coproc_register_set( unsigned int cluster_xy,
	148	unsigned int index,
	149	unsigned int value )
	150	{
	151	if ( sys_call( SYSCALL_COPROC_REGISTER_SET,
	152	cluster_xy,
	153	index,
	154	value,
	155	0 ) )
	156	giet_exit("error in giet_coproc_register_set");
	157	}
	158
	159	///////////////////////////////////////////////////////////
	160	void giet_coproc_register_get( unsigned int cluster_xy,
	161	unsigned int index,
	162	unsigned int* value )
	163	{
	164	if ( sys_call( SYSCALL_COPROC_REGISTER_SET,
	165	cluster_xy,
	166	index,
	167	(unsigned int)value,
	168	0 ) )
	169	giet_exit("error in giet_coproc_register_get");
	170	}
	171
	172
	173	//////////////////////////////////////////////////////////////////////////////
	174	///////////////////// TTY device related system calls ///////////////////////
	175	//////////////////////////////////////////////////////////////////////////////
	176
[438]	177	/////////////////////
	178	void giet_tty_alloc()
[258]	179	{
[521]	180	if ( sys_call( SYSCALL_TTY_ALLOC,
	181	0, 0, 0, 0 ) ) giet_exit("error in giet_tty_alloc()");
[438]	182	}
[258]	183
[438]	184	////////////////////////////////////////////////////////////////////////
	185	static int __printf( char* format, unsigned int channel, va_list* args)
	186	{
	187	int ret; // return value from the syscall
	188
[295]	189	printf_text:
[258]	190
[295]	191	while (*format)
[258]	192	{
[295]	193	unsigned int i;
	194	for (i = 0 ; format[i] && (format[i] != '%') ; i++);
	195	if (i)
	196	{
	197	ret = sys_call(SYSCALL_TTY_WRITE,
	198	(unsigned int)format,
	199	i,
	200	channel,
[258]	201	0);
	202
[295]	203	if (ret != i) goto return_error;
	204
	205	format += i;
[258]	206	}
[295]	207	if (*format == '%')
[258]	208	{
[295]	209	format++;
	210	goto printf_arguments;
[258]	211	}
	212	}
	213
[345]	214	return 0;
[295]	215
	216	printf_arguments:
	217
[258]	218	{
[295]	219	char buf[20];
	220	char * pbuf;
	221	unsigned int len = 0;
	222	static const char HexaTab[] = "0123456789ABCDEF";
	223	unsigned int i;
[258]	224
[295]	225	switch (*format++)
[258]	226	{
[295]	227	case ('c'): /* char conversion */
[258]	228	{
[345]	229	int val = va_arg( *args, int );
[295]	230	len = 1;
	231	buf[0] = val;
	232	pbuf = &buf[0];
	233	break;
[258]	234	}
[295]	235	case ('d'): /* 32 bits decimal signed integer */
[258]	236	{
[345]	237	int val = va_arg( *args, int );
[295]	238	if (val < 0)
	239	{
	240	val = -val;
	241	ret = sys_call(SYSCALL_TTY_WRITE,
	242	(unsigned int)"-",
	243	1,
	244	channel,
	245	0);
	246	if (ret != 1) goto return_error;
	247	}
	248	for(i = 0; i < 10; i++)
	249	{
	250	buf[9 - i] = HexaTab[val % 10];
	251	if (!(val /= 10)) break;
	252	}
	253	len = i + 1;
	254	pbuf = &buf[9 - i];
	255	break;
[258]	256	}
[295]	257	case ('u'): /* 32 bits decimal unsigned integer */
	258	{
[345]	259	unsigned int val = va_arg( *args, unsigned int );
[295]	260	for(i = 0; i < 10; i++)
	261	{
	262	buf[9 - i] = HexaTab[val % 10];
	263	if (!(val /= 10)) break;
	264	}
	265	len = i + 1;
	266	pbuf = &buf[9 - i];
	267	break;
	268	}
	269	case ('x'): /* 32 bits hexadecimal integer */
	270	{
[345]	271	unsigned int val = va_arg( *args, unsigned int );
[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;
	278	for(i = 0; i < 8; i++)
	279	{
	280	buf[7 - i] = HexaTab[val % 16];
	281	if (!(val /= 16)) break;
	282	}
	283	len = i + 1;
	284	pbuf = &buf[7 - i];
	285	break;
	286	}
	287	case ('l'): /* 64 bits hexadecimal unsigned */
	288	{
[345]	289	unsigned long long val = va_arg( *args, unsigned long long );
[295]	290	ret = sys_call(SYSCALL_TTY_WRITE,
	291	(unsigned int)"0x",
	292	2,
	293	channel,
	294	0);
	295	if (ret != 2) goto return_error;
	296	for(i = 0; i < 16; i++)
	297	{
	298	buf[15 - i] = HexaTab[val % 16];
	299	if (!(val /= 16)) break;
	300	}
	301	len = i + 1;
	302	pbuf = &buf[15 - i];
	303	break;
	304	}
	305	case ('s'): /* string */
	306	{
[345]	307	char* str = va_arg( args, char );
[295]	308	while (str[len])
	309	{
	310	len++;
	311	}
	312	pbuf = str;
	313	break;
	314	}
	315	default:
	316	goto return_error;
[258]	317	}
	318
[295]	319	ret = sys_call(SYSCALL_TTY_WRITE,
	320	(unsigned int)pbuf,
	321	len,
	322	channel,
	323	0);
	324	if (ret != len) goto return_error;
	325
	326	goto printf_text;
[258]	327	}
	328
[295]	329	return_error:
[345]	330	return 1;
	331	} // end __printf()
[295]	332
[345]	333
	334	////////////////////////////////////////
	335	void giet_tty_printf( char* format, ...)
	336	{
	337	va_list args;
	338
	339	va_start( args, format );
	340	int ret = __printf(format, 0xFFFFFFFF, &args);
[295]	341	va_end( args );
[345]	342
	343	if (ret)
	344	{
[382]	345	giet_exit("ERROR in giet_tty_printf()");
[345]	346	}
[295]	347	} // end giet_tty_printf()
	348
	349	////////////////////////////////////////
	350	void giet_shr_printf( char* format, ...)
[258]	351	{
[295]	352	va_list args;
[345]	353	volatile unsigned int sr_save;
[258]	354
[295]	355	sys_call( SYSCALL_TTY_GET_LOCK,
[501]	356	0,
[295]	357	(unsigned int)&sr_save,
	358	0, 0 );
	359
[345]	360	va_start( args, format );
[501]	361	int ret = __printf(format, 0, &args);
[345]	362	va_end( args );
[258]	363
[295]	364	sys_call( SYSCALL_TTY_RELEASE_LOCK,
[501]	365	0,
[295]	366	(unsigned int)&sr_save,
	367	0, 0 );
[267]	368
[345]	369	if (ret)
[258]	370	{
[345]	371	giet_exit("error in giet_shr_printf()");
[258]	372	}
[345]	373	} // end giet_shr_printf()
[267]	374
[295]	375	/////////////////////////////////
	376	void giet_tty_getc( char * byte )
	377	{
	378	int ret;
	379
	380	do
[267]	381	{
[295]	382	ret = sys_call(SYSCALL_TTY_READ,
	383	(unsigned int)byte, // buffer address
	384	1, // number of characters
	385	0xFFFFFFFF, // channel index from task context
	386	0);
	387	if ( ret < 0 ) giet_exit("error in giet_tty_getc()");
[267]	388	}
[295]	389	while (ret != 1);
	390	}
[267]	391
[295]	392	/////////////////////////////////////
	393	void giet_tty_gets( char* buf,
	394	unsigned int bufsize )
	395	{
	396	int ret;
	397	unsigned char byte;
	398	unsigned int index = 0;
	399
	400	while (index < (bufsize - 1))
	401	{
	402	do
	403	{
	404	ret = sys_call(SYSCALL_TTY_READ,
	405	(unsigned int)(&byte),
	406	1,
	407	0xFFFFFFFF,
	408	0);
	409	if ( ret < 0 ) giet_exit("error in giet_tty_gets()");
	410	}
	411	while (ret != 1);
	412
	413	if (byte == 0x0A) /* LF */
	414	{
	415	break;
	416	}
	417	else if ((byte == 0x7F) && (index > 0)) /* DEL */
	418	{
	419	index--;
	420	}
	421	else
	422	{
	423	buf[index] = byte;
	424	index++;
	425	}
	426	}
	427	buf[index] = 0;
[258]	428	}
	429
[295]	430	///////////////////////////////////////
	431	void giet_tty_getw( unsigned int* val )
	432	{
	433	unsigned char buf[32];
	434	unsigned int string_byte = 0x00000000; // string containing one single byte
	435	unsigned int string_cancel = 0x00082008; // string containing BS/SPACE/BS
	436	unsigned int save = 0;
	437	unsigned int dec = 0;
	438	unsigned int done = 0;
	439	unsigned int overflow = 0;
	440	unsigned int length = 0;
	441	unsigned int i;
	442	unsigned int channel = 0xFFFFFFFF;
	443	int ret; // return value from syscalls
	444
	445	// get characters
	446	while (done == 0)
	447	{
	448	// read one character
	449	do
	450	{
	451	ret = sys_call( SYSCALL_TTY_READ,
	452	(unsigned int)(&string_byte),
	453	1,
	454	channel,
	455	0);
	456	if ( ret < 0 ) giet_exit("error in giet_tty_getw()");
	457	}
	458	while (ret != 1);
[258]	459
[295]	460	// analyse character
	461	if ((string_byte > 0x2F) && (string_byte < 0x3A)) /* decimal character */
	462	{
	463	buf[length] = (unsigned char)string_byte;
	464	length++;
[258]	465
[295]	466	// echo
	467	ret = sys_call( SYSCALL_TTY_WRITE,
	468	(unsigned int)(&string_byte),
	469	1,
	470	channel,
	471	0 );
	472	if ( ret < 0 ) giet_exit("error in giet_tty_gets()");
	473	}
	474	else if (string_byte == 0x0A) /* LF character */
	475	{
	476	done = 1;
	477	}
	478	else if ( (string_byte == 0x7F) \|\| /* DEL character */
	479	(string_byte == 0x08) ) /* BS character */
	480	{
	481	if ( length > 0 )
	482	{
	483	length--; // cancel the character
	484
	485	ret = sys_call( SYSCALL_TTY_WRITE,
	486	(unsigned int)(&string_cancel),
	487	3,
	488	channel,
	489	0 );
[352]	490	if ( ret < 0 ) giet_exit("error in giet_tty_getw()");
[295]	491	}
	492	}
	493
	494	// test buffer overflow
	495	if ( length >= 32 )
	496	{
	497	overflow = 1;
	498	done = 1;
	499	}
	500	} // end while characters
	501
	502	// string to int conversion with overflow detection
	503	if ( overflow == 0 )
	504	{
	505	for (i = 0; (i < length) && (overflow == 0) ; i++)
	506	{
	507	dec = dec * 10 + (buf[i] - 0x30);
	508	if (dec < save) overflow = 1;
	509	save = dec;
	510	}
	511	}
	512
	513	// final evaluation
	514	if ( overflow == 0 )
	515	{
	516	// return value
	517	*val = dec;
	518	}
	519	else
	520	{
	521	// cancel all echo characters
	522	for (i = 0; i < length ; i++)
	523	{
	524	ret = sys_call( SYSCALL_TTY_WRITE,
	525	(unsigned int)(&string_cancel),
	526	3,
	527	channel,
	528	0 );
[352]	529	if ( ret < 0 ) giet_exit("error in giet_tty_getw()");
[295]	530	}
	531	// echo character '0'
	532	string_byte = 0x30;
	533	ret = sys_call( SYSCALL_TTY_WRITE,
	534	(unsigned int)(&string_byte),
	535	1,
	536	channel,
	537	0 );
[352]	538	if ( ret < 0 ) giet_exit("error in giet_tty_getw()");
[295]	539
	540	// return 0 value
	541	*val = 0;
	542	}
	543	}
	544
	545
[258]	546	//////////////////////////////////////////////////////////////////////////////////
	547	///////////////////// TIMER related system calls ////////////////////////////////
	548	//////////////////////////////////////////////////////////////////////////////////
	549
[295]	550	///////////////////////
[438]	551	void giet_timer_alloc()
[258]	552	{
[438]	553	if ( sys_call( SYSCALL_TIM_ALLOC,
	554	0, 0, 0, 0 ) ) giet_exit("error in giet_timer_alloc()");
[258]	555	}
[295]	556
[438]	557	////////////////////////////////////////////
	558	void giet_timer_start( unsigned int period )
	559	{
	560	if ( sys_call( SYSCALL_TIM_START,
	561	period,
	562	0, 0, 0 ) ) giet_exit("error in giet_timer_start()");
	563	}
	564
[295]	565	//////////////////////
	566	void giet_timer_stop()
[258]	567	{
[438]	568	if ( sys_call( SYSCALL_TIM_STOP,
	569	0, 0, 0, 0 ) ) giet_exit("error in giet_timer_stop()");
[258]	570	}
	571
	572
	573	//////////////////////////////////////////////////////////////////////////////////
	574	/////////////// Frame buffer device related system calls ///////////////////////
	575	//////////////////////////////////////////////////////////////////////////////////
	576
[438]	577	/////////////////////////
	578	void giet_fbf_cma_alloc()
[258]	579	{
[438]	580	if ( sys_call( SYSCALL_FBF_CMA_ALLOC,
	581	0, 0, 0, 0 ) ) giet_exit("error in giet_fbf_cma_alloc()");
[258]	582	}
[295]	583
	584	///////////////////////////////////////////
[438]	585	void giet_fbf_cma_start( void * buf0,
	586	void * buf1,
	587	unsigned int length )
[258]	588	{
[438]	589	if ( sys_call( SYSCALL_FBF_CMA_START,
[295]	590	(unsigned int)buf0,
	591	(unsigned int)buf1,
[438]	592	length,
	593	0 ) ) giet_exit("error in giet_fbf_cma_start()");
[258]	594	}
[295]	595
[438]	596	////////////////////////////////////////////////
	597	void giet_fbf_cma_display( unsigned int buffer )
[258]	598	{
[438]	599	if ( sys_call( SYSCALL_FBF_CMA_DISPLAY,
	600	buffer,
	601	0, 0, 0 ) ) giet_exit("error in giet_fbf_cma_display()");
[258]	602	}
[295]	603
	604	////////////////////////
[438]	605	void giet_fbf_cma_stop()
[258]	606	{
[438]	607	if ( sys_call( SYSCALL_FBF_CMA_STOP,
	608	0, 0, 0, 0 ) ) giet_exit("error in giet_fbf_cma_stop()");
[258]	609	}
	610
[438]	611	//////////////////////////////////////////////
	612	void giet_fbf_sync_write( unsigned int offset,
	613	void * buffer,
	614	unsigned int length )
	615	{
	616	if ( sys_call( SYSCALL_FBF_SYNC_WRITE,
	617	offset,
	618	(unsigned int)buffer,
	619	length,
	620	0 ) ) giet_exit("error in giet_fbf_sync_write()");
	621	}
[258]	622
[438]	623	/////////////////////////////////////////////
	624	void giet_fbf_sync_read( unsigned int offset,
	625	void * buffer,
	626	unsigned int length )
	627	{
	628	if ( sys_call( SYSCALL_FBF_SYNC_READ,
	629	offset,
	630	(unsigned int)buffer,
	631	length,
	632	0 ) ) giet_exit("error in giet_fbf_sync_read()");
	633	}
	634
	635
[258]	636	//////////////////////////////////////////////////////////////////////////////////
	637	/////////////////////// NIC related system calls /////////////////////////////////
	638	//////////////////////////////////////////////////////////////////////////////////
	639
[501]	640	////////////////////////////////////////////////////
	641	unsigned int giet_nic_rx_alloc( unsigned int xmax,
	642	unsigned int ymax )
[258]	643	{
[461]	644	int channel = sys_call( SYSCALL_NIC_ALLOC,
	645	1,
[501]	646	xmax,
	647	ymax,
	648	0 );
[487]	649	if ( channel < 0 ) giet_exit("error in giet_nic_rx_alloc()");
[461]	650
[487]	651	return (unsigned int)channel;
[258]	652	}
[295]	653
[501]	654	////////////////////////////////////////////////////
	655	unsigned int giet_nic_tx_alloc( unsigned int xmax,
	656	unsigned int ymax )
[258]	657	{
[461]	658	int channel = sys_call( SYSCALL_NIC_ALLOC,
[501]	659	0,
	660	xmax,
	661	ymax,
	662	0 );
[461]	663	if ( channel < 0 ) giet_exit("error in giet_nic_tx_alloc()");
	664
[487]	665	return (unsigned int)channel;
[450]	666	}
	667
[487]	668	//////////////////////////////////////////////
	669	void giet_nic_rx_start( unsigned int channel )
[450]	670	{
[461]	671	if ( sys_call( SYSCALL_NIC_START,
	672	1,
[487]	673	channel,
	674	0, 0 ) ) giet_exit("error in giet_nic_rx_start()");
[450]	675	}
	676
[487]	677	//////////////////////////////////////////////
	678	void giet_nic_tx_start( unsigned int channel )
[450]	679	{
[461]	680	if ( sys_call( SYSCALL_NIC_START,
	681	0,
[487]	682	channel,
	683	0, 0 ) ) giet_exit("error in giet_nic_tx_start()");
[450]	684	}
	685
[461]	686	///////////////////////////////////////////////////////////
	687	void giet_nic_rx_move( unsigned int channel, void* buffer )
[450]	688	{
[461]	689	if ( sys_call( SYSCALL_NIC_MOVE,
	690	1,
	691	channel,
[438]	692	(unsigned int)buffer,
[461]	693	0 ) ) giet_exit("error in giet_nic_rx_move()");
[258]	694	}
	695
[461]	696	///////////////////////////////////////////////////////////
	697	void giet_nic_tx_move( unsigned int channel, void* buffer )
[438]	698	{
[461]	699	if ( sys_call( SYSCALL_NIC_MOVE,
	700	0,
	701	channel,
[438]	702	(unsigned int)buffer,
[461]	703	0 ) ) giet_exit("error in giet_nic_tx_move()");
[438]	704	}
	705
[487]	706	/////////////////////////////////////////////
	707	void giet_nic_rx_stop( unsigned int channel )
[450]	708	{
[461]	709	if ( sys_call( SYSCALL_NIC_STOP,
	710	1,
[487]	711	channel,
	712	0, 0 ) ) giet_exit("error in giet_nic_rx_stop()");
[450]	713	}
	714
[487]	715	/////////////////////////////////////////////
	716	void giet_nic_tx_stop( unsigned int channel )
[450]	717	{
[461]	718	if ( sys_call( SYSCALL_NIC_STOP,
	719	0,
[487]	720	channel,
	721	0, 0 ) ) giet_exit("error in giet_nic_tx_stop()");
[450]	722	}
	723
[487]	724	//////////////////////////////////////////////
	725	void giet_nic_rx_stats( unsigned int channel )
[461]	726	{
	727	if ( sys_call( SYSCALL_NIC_STATS,
	728	1,
[487]	729	channel,
	730	0, 0 ) ) giet_exit("error in giet_nic_rx_stats()");
[461]	731	}
[450]	732
[487]	733	//////////////////////////////////////////////
	734	void giet_nic_tx_stats( unsigned int channel )
[461]	735	{
	736	if ( sys_call( SYSCALL_NIC_STATS,
	737	0,
[487]	738	channel,
	739	0, 0 ) ) giet_exit("error in giet_nic_tx_stats()");
[461]	740	}
	741
[487]	742	//////////////////////////////////////////////
	743	void giet_nic_rx_clear( unsigned int channel )
[461]	744	{
	745	if ( sys_call( SYSCALL_NIC_CLEAR,
	746	1,
[487]	747	channel,
	748	0, 0 ) ) giet_exit("error in giet_nic_rx_clear()");
[461]	749	}
	750
[487]	751	//////////////////////////////////////////////
	752	void giet_nic_tx_clear( unsigned int channel )
[461]	753	{
	754	if ( sys_call( SYSCALL_NIC_CLEAR,
	755	0,
[487]	756	channel,
	757	0, 0 ) ) giet_exit("error in giet_nic_tx_clear()");
[461]	758	}
	759
	760
	761
[295]	762	///////////////////////////////////////////////////////////////////////////////////
	763	///////////////////// FAT related system calls ////////////////////////////////////
	764	///////////////////////////////////////////////////////////////////////////////////
[258]	765
[295]	766	///////////////////////////////////////////
	767	int giet_fat_open( const char* pathname,
	768	unsigned int flags )
	769	{
	770	return sys_call( SYSCALL_FAT_OPEN,
	771	(unsigned int)pathname,
	772	flags,
	773	0, 0 );
	774	}
[258]	775
[295]	776	////////////////////////////////////
	777	void giet_fat_read( unsigned int fd,
	778	void* buffer,
	779	unsigned int count,
	780	unsigned int offset )
	781	{
	782	if ( sys_call( SYSCALL_FAT_READ,
	783	fd,
	784	(unsigned int)buffer,
	785	count,
[390]	786	offset ) != count ) giet_exit("ERROR in giet_fat_read()");
[295]	787	}
	788
	789	/////////////////////////////////////
	790	void giet_fat_write( unsigned int fd,
	791	void* buffer,
	792	unsigned int count,
	793	unsigned int offset )
	794	{
	795	if ( sys_call( SYSCALL_FAT_WRITE,
	796	fd,
	797	(unsigned int)buffer,
	798	count,
[390]	799	offset ) != count ) giet_exit("ERROR in giet_fat_write()");
[295]	800	}
	801
	802	/* variant implementing the UNIX spec
[258]	803	///////////////////////////////////////////////////////////////////////////////////
[295]	804	// This system call writes to a file identified by the "fd" file descriptor.
	805	// - "buffer" is the source buffer virtual address (must be word aligned).
	806	// - "count" is a number of bytes (must be multiple of 4).
	807	// It uses the implicit "lseek" pointer in file descriptor.
[258]	808	///////////////////////////////////////////////////////////////////////////////////
[295]	809	void giet_fat_write( unsigned int fd,
	810	void* buffer,
	811	unsigned int count ) // number of bytes
[258]	812	{
[295]	813	return sys_call( SYSCALL_FAT_WRITE,
	814	fd,
	815	(unsigned int)buffer,
	816	count, 0 );
[258]	817	}
[295]	818	*/
	819
	820	/////////////////////////////////////
	821	void giet_fat_lseek( unsigned int fd,
	822	unsigned int offset,
	823	unsigned int whence )
[258]	824	{
[295]	825	if ( sys_call( SYSCALL_FAT_LSEEK,
	826	fd,
	827	offset,
	828	whence,
[390]	829	0 ) ) giet_exit("ERROR in giet_fat_lseek()");
[258]	830	}
[295]	831
	832	//////////////////////////////////////
	833	void giet_fat_fstat( unsigned int fd )
[258]	834	{
[295]	835	if ( sys_call( SYSCALL_FAT_FSTAT,
	836	fd,
[390]	837	0, 0, 0 ) ) giet_exit("ERROR in giet_fat_lseek()");
[258]	838	}
[295]	839
	840	/////////////////////////////////////
	841	void giet_fat_close( unsigned int fd )
[258]	842	{
[295]	843	if ( sys_call( SYSCALL_FAT_CLOSE,
	844	fd,
[390]	845	0, 0, 0 ) ) giet_exit("ERROR in giet_fat_close()");
[258]	846	}
[295]	847
	848
	849
	850
[390]	851	//////////////////////////////////////////////////////////////////////////////////
	852	///////////////////// Miscellaneous system calls /////////////////////////////////
	853	//////////////////////////////////////////////////////////////////////////////////
	854
[295]	855	//////////////////////////////
	856	void giet_exit( char* string )
[258]	857	{
[295]	858	sys_call( SYSCALL_EXIT,
	859	(unsigned int)string,
	860	0, 0, 0 );
[258]	861	}
[295]	862
	863	/////////////////////////////////////////
	864	void giet_assert( unsigned int condition,
	865	char* string )
[258]	866	{
[295]	867	if ( condition == 0 ) giet_exit( string );
[258]	868	}
[295]	869
[390]	870	//////////////////////////
	871	void giet_context_switch()
	872	{
	873	sys_call( SYSCALL_CTX_SWITCH,
	874	0, 0, 0, 0 );
	875	}
	876
[501]	877	/////////////////////////////////////////////////
	878	void giet_procs_number( unsigned int* x_size,
	879	unsigned int* y_size,
	880	unsigned int* nprocs )
[438]	881	{
[501]	882	if ( sys_call( SYSCALL_PROCS_NUMBER,
	883	(unsigned int)x_size,
	884	(unsigned int)y_size,
	885	(unsigned int)nprocs,
	886	0 ) ) giet_exit("ERROR in giet_procs_number()");
[438]	887	}
	888
[295]	889	////////////////////////////////////////////////////
	890	void giet_vobj_get_vbase( char* vspace_name,
	891	char* vobj_name,
[438]	892	unsigned int* vbase )
[258]	893	{
[295]	894	if ( sys_call( SYSCALL_VOBJ_GET_VBASE,
	895	(unsigned int) vspace_name,
	896	(unsigned int) vobj_name,
[438]	897	(unsigned int) vbase,
[390]	898	0 ) ) giet_exit("ERROR in giet_vobj_get_vbase()");
[258]	899	}
[260]	900
[438]	901	////////////////////////////////////////////////////
	902	void giet_vobj_get_length( char* vspace_name,
	903	char* vobj_name,
	904	unsigned int* length )
[260]	905	{
[438]	906	if ( sys_call( SYSCALL_VOBJ_GET_LENGTH,
	907	(unsigned int) vspace_name,
	908	(unsigned int) vobj_name,
	909	(unsigned int) length,
	910	0 ) ) giet_exit("ERROR in giet_vobj_get_length()");
[260]	911	}
	912
[295]	913	/////////////////////////////////////////
	914	void giet_heap_info( unsigned int* vaddr,
[368]	915	unsigned int* length,
	916	unsigned int x,
	917	unsigned int y )
[258]	918	{
[295]	919	if ( sys_call( SYSCALL_HEAP_INFO,
	920	(unsigned int)vaddr,
	921	(unsigned int)length,
[368]	922	x,
[390]	923	y ) ) giet_exit("ERROR in giet_heap_info()");
[258]	924	}
	925
[390]	926	/////////////////////////////////////////
	927	void giet_get_xy( void* ptr,
	928	unsigned int* px,
	929	unsigned int* py )
	930	{
	931	if ( sys_call( SYSCALL_GET_XY,
	932	(unsigned int)ptr,
	933	(unsigned int)px,
	934	(unsigned int)py,
	935	0 ) ) giet_exit("ERROR in giet_get_xy()");
	936	}
	937
[258]	938	// Local Variables:
	939	// tab-width: 4
	940	// c-basic-offset: 4
	941	// c-file-offsets:((innamespace . 0)(inline-open . 0))
	942	// indent-tabs-mode: nil
	943	// End:
	944	// vim: filetype=c:expandtab:shiftwidth=4:tabstop=4:softtabstop=4
	945

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