WebSVN – HelenOS – Blame – /branches/network/uspace/srv/net/netif/dp8390/dp8390.c

Rev	Author	Line No.	Line
4163	mejdrech	1	/*
		2	* Copyright (c) 1987,1997, 2006, Vrije Universiteit, Amsterdam, The Netherlands All rights reserved. Redistribution and use of the MINIX 3 operating system in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
		3	*
		4	* * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
		5	* * 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.
		6	* * Neither the name of the Vrije Universiteit nor the names of the software authors or contributors may be used to endorse or promote products derived from this software without specific prior written permission.
		7	* * Any deviations from these conditions require written permission from the copyright holder in advance
		8	*
		9	*
		10	* Disclaimer
		11	*
		12	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS, AUTHORS, AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
		13	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
		14	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
		15	* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR ANY AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
		16	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		17	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		18	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		19	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		20	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
		21	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		22	*
		23	* Changes:
4192	mejdrech	24	* 2009 Lukas Mejdrech ported to HelenOS
4163	mejdrech	25	*/
		26
		27	/** @addtogroup dp8390
		28	* @{
		29	*/
		30
		31	#include <assert.h>
		32	#include <errno.h>
		33
		34	#include "../../include/byteorder.h"
		35
4192	mejdrech	36	#include "../../structures/packet/packet.h"
		37	#include "../../structures/packet/packet_client.h"
		38
		39	#include "../netif.h"
		40
4163	mejdrech	41	#include "dp8390_drv.h"
		42	#include "dp8390_port.h"
		43
		44	/*
		45	* dp8390.c
		46	*
		47	* Created: before Dec 28, 1992 by Philip Homburg <philip@f-mnx.phicoh.com>
		48	*
		49	* Modified Mar 10 1994 by Philip Homburg
		50	* Become a generic dp8390 driver.
		51	*
		52	* Modified Dec 20 1996 by G. Falzoni <falzoni@marina.scn.de>
		53	* Added support for 3c503 boards.
		54	*/
		55
		56	#include "local.h"
		57	#include "dp8390.h"
		58
4192	mejdrech	59	int queue_packet( dpeth_t * dep, packet_t packet );
		60	static void outsb( port_t port, void * buf, size_t size );
		61	static void outsw( port_t port, void * buf, size_t size );
		62
4163	mejdrech	63	//static u16_t eth_ign_proto;
		64	//static char *progname;
		65
		66	/* Configuration */
		67	/*typedef struct dp_conf
		68	{
		69	port_t dpc_port;
		70	int dpc_irq;
		71	phys_bytes dpc_mem;
		72	char *dpc_envvar;
		73	} dp_conf_t;
		74	*/
		75	//dp_conf_t dp_conf[]= /* Card addresses */
		76	//{
		77	/* I/O port, IRQ, Buffer address, Env. var. */
		78	/* { 0x280, 3, 0xD0000, "DPETH0" },
		79	{ 0x300, 5, 0xC8000, "DPETH1" },
		80	{ 0x380, 10, 0xD8000, "DPETH2" },
		81	};
		82	*/
		83	/* Test if dp_conf has exactly DE_PORT_NR entries. If not then you will see
		84	* the error: "array size is negative".
		85	*/
		86	//extern int ___dummy[DE_PORT_NR == sizeof(dp_conf)/sizeof(dp_conf[0]) ? 1 : -1];
		87
		88	/* Card inits configured out? */
		89	#if !ENABLE_WDETH
		90	#define wdeth_probe(dep) (0)
		91	#endif
		92	#if !ENABLE_NE2000
		93	#define ne_probe(dep) (0)
		94	#endif
		95	#if !ENABLE_3C503
		96	#define el2_probe(dep) (0)
		97	#endif
		98
		99	/* Some clones of the dp8390 and the PC emulator 'Bochs' require the CR_STA
		100	* on writes to the CR register. Additional CR_STAs do not appear to hurt
		101	* genuine dp8390s
		102	*/
		103	#define CR_EXTRA CR_STA
		104
		105	//#if ENABLE_PCI
		106	//_PROTOTYPE( static void pci_conf, (void) );
		107	//#endif
		108	//_PROTOTYPE( static void do_vwrite, (message *mp, int from_int,
		109	// int vectored) );
		110	//_PROTOTYPE( static void do_vwrite_s, (message *mp, int from_int) );
		111	//_PROTOTYPE( static void do_vread, (message *mp, int vectored) );
		112	//_PROTOTYPE( static void do_vread_s, (message *mp) );
		113	//_PROTOTYPE( static void do_init, (message *mp) );
		114	//_PROTOTYPE( static void do_int, (dpeth_t *dep) );
		115	//_PROTOTYPE( static void do_getstat, (message *mp) );
		116	//_PROTOTYPE( static void do_getstat_s, (message *mp) );
		117	//_PROTOTYPE( static void do_getname, (message *mp) );
		118	//_PROTOTYPE( static void do_stop, (message *mp) );
		119	_PROTOTYPE( static void dp_init, (dpeth_t *dep) );
		120	//_PROTOTYPE( static void dp_confaddr, (dpeth_t *dep) );
		121	_PROTOTYPE( static void dp_reinit, (dpeth_t *dep) );
		122	_PROTOTYPE( static void dp_reset, (dpeth_t *dep) );
		123	//_PROTOTYPE( static void dp_check_ints, (dpeth_t *dep) );
		124	_PROTOTYPE( static void dp_recv, (dpeth_t *dep) );
		125	_PROTOTYPE( static void dp_send, (dpeth_t *dep) );
		126	//_PROTOTYPE( static void dp8390_stop, (void) );
		127	_PROTOTYPE( static void dp_getblock, (dpeth_t *dep, int page,
		128	size_t offset, size_t size, void *dst) );
4192	mejdrech	129	_PROTOTYPE( static void dp_pio8_getblock, (dpeth_t *dep, int page,
		130	size_t offset, size_t size, void *dst) );
		131	_PROTOTYPE( static void dp_pio16_getblock, (dpeth_t *dep, int page,
		132	size_t offset, size_t size, void *dst) );
4163	mejdrech	133	_PROTOTYPE( static int dp_pkt2user, (dpeth_t *dep, int page,
		134	int length) );
		135	//_PROTOTYPE( static int dp_pkt2user_s, (dpeth_t *dep, int page,
		136	// int length) );
4192	mejdrech	137	_PROTOTYPE( static void dp_user2nic, (dpeth_t dep, iovec_dat_t iovp,
		138	vir_bytes offset, int nic_addr, vir_bytes count) );
4163	mejdrech	139	//_PROTOTYPE( static void dp_user2nic_s, (dpeth_t dep, iovec_dat_s_t iovp,
		140	// vir_bytes offset, int nic_addr, vir_bytes count) );
4192	mejdrech	141	_PROTOTYPE( static void dp_pio8_user2nic, (dpeth_t *dep,
		142	iovec_dat_t *iovp, vir_bytes offset,
		143	int nic_addr, vir_bytes count) );
4163	mejdrech	144	//_PROTOTYPE( static void dp_pio8_user2nic_s, (dpeth_t *dep,
		145	// iovec_dat_s_t *iovp, vir_bytes offset,
		146	// int nic_addr, vir_bytes count) );
4192	mejdrech	147	_PROTOTYPE( static void dp_pio16_user2nic, (dpeth_t *dep,
		148	iovec_dat_t *iovp, vir_bytes offset,
		149	int nic_addr, vir_bytes count) );
4163	mejdrech	150	//_PROTOTYPE( static void dp_pio16_user2nic_s, (dpeth_t *dep,
		151	// iovec_dat_s_t *iovp, vir_bytes offset,
		152	// int nic_addr, vir_bytes count) );
		153	_PROTOTYPE( static void dp_nic2user, (dpeth_t *dep, int nic_addr,
		154	iovec_dat_t *iovp, vir_bytes offset, vir_bytes count) );
		155	//_PROTOTYPE( static void dp_nic2user_s, (dpeth_t *dep, int nic_addr,
		156	// iovec_dat_s_t *iovp, vir_bytes offset, vir_bytes count) );
4192	mejdrech	157	_PROTOTYPE( static void dp_pio8_nic2user, (dpeth_t *dep, int nic_addr,
		158	iovec_dat_t *iovp, vir_bytes offset, vir_bytes count) );
4163	mejdrech	159	//_PROTOTYPE( static void dp_pio8_nic2user_s, (dpeth_t *dep, int nic_addr,
		160	// iovec_dat_s_t *iovp, vir_bytes offset, vir_bytes count) );
4192	mejdrech	161	_PROTOTYPE( static void dp_pio16_nic2user, (dpeth_t *dep, int nic_addr,
		162	iovec_dat_t *iovp, vir_bytes offset, vir_bytes count) );
4163	mejdrech	163	//_PROTOTYPE( static void dp_pio16_nic2user_s, (dpeth_t *dep, int nic_addr,
		164	// iovec_dat_s_t *iovp, vir_bytes offset, vir_bytes count) );
4192	mejdrech	165	_PROTOTYPE( static void dp_next_iovec, (iovec_dat_t *iovp) );
4163	mejdrech	166	//_PROTOTYPE( static void dp_next_iovec_s, (iovec_dat_s_t *iovp) );
		167	_PROTOTYPE( static void conf_hw, (dpeth_t *dep) );
		168	//_PROTOTYPE( static void update_conf, (dpeth_t dep, dp_conf_t dcp) );
		169	_PROTOTYPE( static void map_hw_buffer, (dpeth_t *dep) );
		170	//_PROTOTYPE( static int calc_iovec_size, (iovec_dat_t *iovp) );
		171	//_PROTOTYPE( static int calc_iovec_size_s, (iovec_dat_s_t *iovp) );
		172	_PROTOTYPE( static void reply, (dpeth_t *dep, int err, int may_block) );
		173	//_PROTOTYPE( static void mess_reply, (message req, message reply) );
4192	mejdrech	174	_PROTOTYPE( static void get_userdata, (int user_proc,
		175	vir_bytes user_addr, vir_bytes count, void *loc_addr) );
4163	mejdrech	176	//_PROTOTYPE( static void get_userdata_s, (int user_proc,
		177	// cp_grant_id_t grant, vir_bytes offset, vir_bytes count,
		178	// void *loc_addr) );
		179	//_PROTOTYPE( static void put_userdata, (int user_proc,
		180	// vir_bytes user_addr, vir_bytes count, void *loc_addr) );
		181	//_PROTOTYPE( static void put_userdata_s, (int user_proc,
		182	// cp_grant_id_t grant, size_t count, void *loc_addr) );
4192	mejdrech	183	_PROTOTYPE( static void insb, (port_t port, void *buf, size_t size) );
		184	_PROTOTYPE( static void insw, (port_t port, void *buf, size_t size) );
4163	mejdrech	185	//_PROTOTYPE( static void do_vir_insb, (port_t port, int proc,
		186	// vir_bytes buf, size_t size) );
		187	//_PROTOTYPE( static void do_vir_insw, (port_t port, int proc,
		188	// vir_bytes buf, size_t size) );
		189	//_PROTOTYPE( static void do_vir_outsb, (port_t port, int proc,
		190	// vir_bytes buf, size_t size) );
		191	//_PROTOTYPE( static void do_vir_outsw, (port_t port, int proc,
		192	// vir_bytes buf, size_t size) );
		193
		194	int do_probe( dpeth_t * dep ){
		195	/* This is the default, try to (re)locate the device. */
		196	conf_hw(dep);
		197	if (dep->de_mode == DEM_DISABLED)
		198	{
		199	/* Probe failed, or the device is configured off. */
		200	return EXDEV;//ENXIO;
		201	}
		202	if (dep->de_mode == DEM_ENABLED)
		203	dp_init(dep);
		204	return EOK;
		205	}
		206
		207	/===========================================================================
4327	mejdrech	208	* dp8390_dump *
		209	===========================================================================/
		210	void dp8390_dump( dpeth_t * dep )
		211	{
		212	// dpeth_t *dep;
		213	int /i,/ isr;
		214
		215	// printf("\n");
		216	// for (i= 0, dep = &de_table[0]; i<DE_PORT_NR; i++, dep++)
		217	// {
		218	#if XXX
		219	if (dep->de_mode == DEM_DISABLED)
		220	printf("dp8390 port %d is disabled\n", i);
		221	else if (dep->de_mode == DEM_SINK)
		222	printf("dp8390 port %d is in sink mode\n", i);
		223	#endif
		224
		225	if (dep->de_mode != DEM_ENABLED)
		226	// continue;
		227	return;
		228
		229	// printf("dp8390 statistics of port %d:\n", i);
		230
		231	printf("recvErr :%8ld\t", dep->de_stat.ets_recvErr);
		232	printf("sendErr :%8ld\t", dep->de_stat.ets_sendErr);
		233	printf("OVW :%8ld\n", dep->de_stat.ets_OVW);
		234
		235	printf("CRCerr :%8ld\t", dep->de_stat.ets_CRCerr);
		236	printf("frameAll :%8ld\t", dep->de_stat.ets_frameAll);
		237	printf("missedP :%8ld\n", dep->de_stat.ets_missedP);
		238
		239	printf("packetR :%8ld\t", dep->de_stat.ets_packetR);
		240	printf("packetT :%8ld\t", dep->de_stat.ets_packetT);
		241	printf("transDef :%8ld\n", dep->de_stat.ets_transDef);
		242
		243	printf("collision :%8ld\t", dep->de_stat.ets_collision);
		244	printf("transAb :%8ld\t", dep->de_stat.ets_transAb);
		245	printf("carrSense :%8ld\n", dep->de_stat.ets_carrSense);
		246
		247	printf("fifoUnder :%8ld\t", dep->de_stat.ets_fifoUnder);
		248	printf("fifoOver :%8ld\t", dep->de_stat.ets_fifoOver);
		249	printf("CDheartbeat:%8ld\n", dep->de_stat.ets_CDheartbeat);
		250
		251	printf("OWC :%8ld\t", dep->de_stat.ets_OWC);
		252
		253	isr= inb_reg0(dep, DP_ISR);
		254	printf("dp_isr = 0x%x + 0x%x, de_flags = 0x%x\n", isr,
		255	inb_reg0(dep, DP_ISR), dep->de_flags);
		256	// }
		257	}
		258
		259	/===========================================================================
4163	mejdrech	260	* do_init *
		261	===========================================================================/
		262	int do_init( dpeth_t * dep, int mode ){
		263	if (dep->de_mode == DEM_DISABLED)
		264	{
		265	// might call do_probe()
		266	return EXDEV;
		267	}
		268
		269	if (dep->de_mode == DEM_SINK)
		270	{
		271	// strncpy((char *) dep->de_address.ea_addr, "ZDP", 6);
		272	// dep->de_address.ea_addr[5] = port;
		273	// dp_confaddr(dep);
		274	// reply_mess.m_type = DL_CONF_REPLY;
		275	// reply_mess.m3_i1 = mp->DL_PORT;
		276	// reply_mess.m3_i2 = DE_PORT_NR;
		277	// (ether_addr_t ) reply_mess.m3_ca1 = dep->de_address;
		278	// mess_reply(mp, &reply_mess);
		279	// return;
		280	return EOK;
		281	}
		282	assert(dep->de_mode == DEM_ENABLED);
		283	assert(dep->de_flags & DEF_ENABLED);
		284
		285	dep->de_flags &= ~(DEF_PROMISC \| DEF_MULTI \| DEF_BROAD);
		286
		287	if (mode & DL_PROMISC_REQ)
		288	dep->de_flags \|= DEF_PROMISC \| DEF_MULTI \| DEF_BROAD;
		289	if (mode & DL_MULTI_REQ)
		290	dep->de_flags \|= DEF_MULTI;
		291	if (mode & DL_BROAD_REQ)
		292	dep->de_flags \|= DEF_BROAD;
		293
		294	// dep->de_client = mp->m_source;
		295	dp_reinit(dep);
		296
		297	// reply_mess.m_type = DL_CONF_REPLY;
		298	// reply_mess.m3_i1 = mp->DL_PORT;
		299	// reply_mess.m3_i2 = DE_PORT_NR;
		300	// (ether_addr_t ) reply_mess.m3_ca1 = dep->de_address;
		301
		302	// mess_reply(mp, &reply_mess);
		303	return EOK;
		304	}
		305
		306	/===========================================================================
		307	* do_stop *
		308	===========================================================================/
		309	void do_stop( dpeth_t * dep ){
		310	if(( dep->de_mode != DEM_SINK ) && ( dep->de_mode == DEM_ENABLED ) && ( dep->de_flags & DEF_ENABLED )){
		311	outb_reg0( dep, DP_CR, CR_STP \| CR_DM_ABORT );
		312	( dep->de_stopf )( dep );
		313
		314	dep->de_flags = DEF_EMPTY;
		315	}
		316	}
		317
4192	mejdrech	318	int queue_packet( dpeth_t * dep, packet_t packet ){
		319	packet_t tmp;
		320
		321	if( dep->packet_count > 1 ){
		322	if( ! pq_add( pq_previous( dep->packet_queue ), packet, 0, 0 )){
		323	return EINVAL;
		324	}
		325	}else{
		326	tmp = pq_add( dep->packet_queue, packet, 0, 0 );
		327	if( ! tmp ) return EINVAL;
		328	dep->packet_queue = tmp;
		329	}
		330	++ dep->packet_count;
		331	return EBUSY;
		332	}
		333
4163	mejdrech	334	/===========================================================================
4192	mejdrech	335	* based on do_vwrite *
		336	===========================================================================/
		337	int do_pwrite( dpeth_t * dep, packet_t packet, int from_int )
		338	{
		339	// int port, count, size;
		340	int size;
		341	int sendq_head;
		342	/* dpeth_t *dep;
		343
		344	port = mp->DL_PORT;
		345	count = mp->DL_COUNT;
		346	if (port < 0 \|\| port >= DE_PORT_NR)
		347	panic("", "dp8390: illegal port", port);
		348	dep= &de_table[port];
		349	dep->de_client= mp->DL_PROC;
		350	*/
		351	if (dep->de_mode == DEM_SINK)
		352	{
		353	assert(!from_int);
		354	dep->de_flags \|= DEF_PACK_SEND;
		355	reply(dep, OK, FALSE);
		356	// return;
		357	return EOK;
		358	}
		359	assert(dep->de_mode == DEM_ENABLED);
		360	assert(dep->de_flags & DEF_ENABLED);
		361	if (dep->de_flags & DEF_SEND_AVAIL){
		362	// panic("", "dp8390: send already in progress", NO_NUM);
		363	return queue_packet( dep, packet );
		364	}
		365
		366	sendq_head= dep->de_sendq_head;
		367	if (dep->de_sendq[sendq_head].sq_filled)
		368	{
		369	if (from_int)
		370	panic("", "dp8390: should not be sending\n", NO_NUM);
		371	// dep->de_sendmsg= *mp;
		372	dep->de_flags \|= DEF_SEND_AVAIL;
		373	reply(dep, OK, FALSE);
		374	// return;
		375	return queue_packet( dep, packet );
		376	}
		377	assert(!(dep->de_flags & DEF_PACK_SEND));
		378
		379	/* if (vectored)
		380	{
		381	get_userdata(mp->DL_PROC, (vir_bytes) mp->DL_ADDR,
		382	(count > IOVEC_NR ? IOVEC_NR : count) *
		383	sizeof(iovec_t), dep->de_write_iovec.iod_iovec);
		384	dep->de_write_iovec.iod_iovec_s = count;
		385	dep->de_write_iovec.iod_proc_nr = mp->DL_PROC;
		386	dep->de_write_iovec.iod_iovec_addr = (vir_bytes) mp->DL_ADDR;
		387
		388	dep->de_tmp_iovec = dep->de_write_iovec;
		389	size = calc_iovec_size(&dep->de_tmp_iovec);
		390	}
		391	else
		392	{
		393	dep->de_write_iovec.iod_iovec[0].iov_addr =
		394	(vir_bytes) mp->DL_ADDR;
		395	dep->de_write_iovec.iod_iovec[0].iov_size =
		396	mp->DL_COUNT;
		397	dep->de_write_iovec.iod_iovec_s = 1;
		398	dep->de_write_iovec.iod_proc_nr = mp->DL_PROC;
		399	dep->de_write_iovec.iod_iovec_addr = 0;
		400	size= mp->DL_COUNT;
		401	}
		402	*/
		403	size = packet_get_data_length( packet );
		404	dep->de_write_iovec.iod_iovec[0].iov_addr = ( vir_bytes ) packet_get_data( packet );
		405	dep->de_write_iovec.iod_iovec[0].iov_size = size;
		406	dep->de_write_iovec.iod_iovec_s = 1;
		407	dep->de_write_iovec.iod_iovec_addr = NULL;
		408
		409	if (size < ETH_MIN_PACK_SIZE \|\| size > ETH_MAX_PACK_SIZE_TAGGED)
		410	{
		411	panic("", "dp8390: invalid packet size", size);
		412	return EINVAL;
		413	}
		414	(dep->de_user2nicf)(dep, &dep->de_write_iovec, 0,
		415	dep->de_sendq[sendq_head].sq_sendpage * DP_PAGESIZE,
		416	size);
		417	dep->de_sendq[sendq_head].sq_filled= TRUE;
		418	if (dep->de_sendq_tail == sendq_head)
		419	{
		420	outb_reg0(dep, DP_TPSR, dep->de_sendq[sendq_head].sq_sendpage);
		421	outb_reg0(dep, DP_TBCR1, size >> 8);
		422	outb_reg0(dep, DP_TBCR0, size & 0xff);
		423	outb_reg0(dep, DP_CR, CR_TXP \| CR_EXTRA);/* there it goes.. */
		424	}
		425	else
		426	dep->de_sendq[sendq_head].sq_size= size;
		427
		428	if (++sendq_head == dep->de_sendq_nr)
		429	sendq_head= 0;
		430	assert(sendq_head < SENDQ_NR);
		431	dep->de_sendq_head= sendq_head;
		432
		433	dep->de_flags \|= DEF_PACK_SEND;
		434
		435	/* If the interrupt handler called, don't send a reply. The reply
		436	* will be sent after all interrupts are handled.
		437	*/
		438	if (from_int)
		439	return EOK;
		440	reply(dep, OK, FALSE);
		441
		442	assert(dep->de_mode == DEM_ENABLED);
		443	assert(dep->de_flags & DEF_ENABLED);
		444	return EOK;
		445	}
		446
		447	/===========================================================================
4163	mejdrech	448	* dp_init *
		449	===========================================================================/
		450	void dp_init(dep)
		451	dpeth_t *dep;
		452	{
		453	int dp_rcr_reg;
		454	int i;//, r;
		455
		456	/* General initialization */
		457	dep->de_flags = DEF_EMPTY;
		458	(*dep->de_initf)(dep);
		459
		460	// dp_confaddr(dep);
		461
		462	if (debug)
		463	{
		464	printf("%s: Ethernet address ", dep->de_name);
		465	for (i= 0; i < 6; i++)
		466	printf("%x%c", dep->de_address.ea_addr[i],
		467	i < 5 ? ':' : '\n');
		468	}
		469
		470	/* Map buffer */
		471	map_hw_buffer(dep);
		472
		473	/* Initialization of the dp8390 following the mandatory procedure
		474	* in reference manual ("DP8390D/NS32490D NIC Network Interface
		475	* Controller", National Semiconductor, July 1995, Page 29).
		476	*/
		477	/* Step 1: */
		478	outb_reg0(dep, DP_CR, CR_PS_P0 \| CR_STP \| CR_DM_ABORT);
		479	/* Step 2: */
		480	if (dep->de_16bit)
		481	outb_reg0(dep, DP_DCR, DCR_WORDWIDE \| DCR_8BYTES \| DCR_BMS);
		482	else
		483	outb_reg0(dep, DP_DCR, DCR_BYTEWIDE \| DCR_8BYTES \| DCR_BMS);
		484	/* Step 3: */
		485	outb_reg0(dep, DP_RBCR0, 0);
		486	outb_reg0(dep, DP_RBCR1, 0);
		487	/* Step 4: */
		488	dp_rcr_reg = 0;
		489	if (dep->de_flags & DEF_PROMISC)
		490	dp_rcr_reg \|= RCR_AB \| RCR_PRO \| RCR_AM;
		491	if (dep->de_flags & DEF_BROAD)
		492	dp_rcr_reg \|= RCR_AB;
		493	if (dep->de_flags & DEF_MULTI)
		494	dp_rcr_reg \|= RCR_AM;
		495	outb_reg0(dep, DP_RCR, dp_rcr_reg);
		496	/* Step 5: */
		497	outb_reg0(dep, DP_TCR, TCR_INTERNAL);
		498	/* Step 6: */
		499	outb_reg0(dep, DP_BNRY, dep->de_startpage);
		500	outb_reg0(dep, DP_PSTART, dep->de_startpage);
		501	outb_reg0(dep, DP_PSTOP, dep->de_stoppage);
		502	/* Step 7: */
		503	outb_reg0(dep, DP_ISR, 0xFF);
		504	/* Step 8: */
		505	outb_reg0(dep, DP_IMR, IMR_PRXE \| IMR_PTXE \| IMR_RXEE \| IMR_TXEE \|
		506	IMR_OVWE \| IMR_CNTE);
		507	/* Step 9: */
		508	outb_reg0(dep, DP_CR, CR_PS_P1 \| CR_DM_ABORT \| CR_STP);
		509
		510	outb_reg1(dep, DP_PAR0, dep->de_address.ea_addr[0]);
		511	outb_reg1(dep, DP_PAR1, dep->de_address.ea_addr[1]);
		512	outb_reg1(dep, DP_PAR2, dep->de_address.ea_addr[2]);
		513	outb_reg1(dep, DP_PAR3, dep->de_address.ea_addr[3]);
		514	outb_reg1(dep, DP_PAR4, dep->de_address.ea_addr[4]);
		515	outb_reg1(dep, DP_PAR5, dep->de_address.ea_addr[5]);
		516
		517	outb_reg1(dep, DP_MAR0, 0xff);
		518	outb_reg1(dep, DP_MAR1, 0xff);
		519	outb_reg1(dep, DP_MAR2, 0xff);
		520	outb_reg1(dep, DP_MAR3, 0xff);
		521	outb_reg1(dep, DP_MAR4, 0xff);
		522	outb_reg1(dep, DP_MAR5, 0xff);
		523	outb_reg1(dep, DP_MAR6, 0xff);
		524	outb_reg1(dep, DP_MAR7, 0xff);
		525
		526	outb_reg1(dep, DP_CURR, dep->de_startpage + 1);
		527	/* Step 10: */
		528	outb_reg0(dep, DP_CR, CR_DM_ABORT \| CR_STA);
		529	/* Step 11: */
		530	outb_reg0(dep, DP_TCR, TCR_NORMAL);
		531
		532	inb_reg0(dep, DP_CNTR0); /* reset counters by reading */
		533	inb_reg0(dep, DP_CNTR1);
		534	inb_reg0(dep, DP_CNTR2);
		535
		536	/* Finish the initialization. */
		537	dep->de_flags \|= DEF_ENABLED;
		538	for (i= 0; i<dep->de_sendq_nr; i++)
		539	dep->de_sendq[i].sq_filled= 0;
		540	dep->de_sendq_head= 0;
		541	dep->de_sendq_tail= 0;
4192	mejdrech	542	if (!dep->de_prog_IO)
		543	{
		544	dep->de_user2nicf= dp_user2nic;
4163	mejdrech	545	// dep->de_user2nicf_s= dp_user2nic_s;
		546	dep->de_nic2userf= dp_nic2user;
		547	// dep->de_nic2userf_s= dp_nic2user_s;
		548	dep->de_getblockf= dp_getblock;
4192	mejdrech	549	}
		550	else if (dep->de_16bit)
		551	{
		552	dep->de_user2nicf= dp_pio16_user2nic;
4163	mejdrech	553	// dep->de_user2nicf_s= dp_pio16_user2nic_s;
4192	mejdrech	554	dep->de_nic2userf= dp_pio16_nic2user;
4163	mejdrech	555	// dep->de_nic2userf_s= dp_pio16_nic2user_s;
4192	mejdrech	556	dep->de_getblockf= dp_pio16_getblock;
		557	}
		558	else
		559	{
		560	dep->de_user2nicf= dp_pio8_user2nic;
4163	mejdrech	561	// dep->de_user2nicf_s= dp_pio8_user2nic_s;
4192	mejdrech	562	dep->de_nic2userf= dp_pio8_nic2user;
4163	mejdrech	563	// dep->de_nic2userf_s= dp_pio8_nic2user_s;
4192	mejdrech	564	dep->de_getblockf= dp_pio8_getblock;
		565	}
4163	mejdrech	566
		567	/* Set the interrupt handler and policy. Do not automatically
		568	* reenable interrupts. Return the IRQ line number on interrupts.
		569	*/
		570	/* dep->de_hook = dep->de_irq;
		571	r= sys_irqsetpolicy(dep->de_irq, 0, &dep->de_hook);
		572	if (r != OK)
		573	panic("DP8390", "sys_irqsetpolicy failed", r);
		574
		575	r= sys_irqenable(&dep->de_hook);
		576	if (r != OK)
		577	{
		578	panic("DP8390", "unable enable interrupts", r);
		579	}
		580	*/
		581	}
		582
		583	/===========================================================================
		584	* dp_reinit *
		585	===========================================================================/
		586	static void dp_reinit(dep)
		587	dpeth_t *dep;
		588	{
		589	int dp_rcr_reg;
		590
		591	outb_reg0(dep, DP_CR, CR_PS_P0 \| CR_EXTRA);
		592
		593	dp_rcr_reg = 0;
		594	if (dep->de_flags & DEF_PROMISC)
		595	dp_rcr_reg \|= RCR_AB \| RCR_PRO \| RCR_AM;
		596	if (dep->de_flags & DEF_BROAD)
		597	dp_rcr_reg \|= RCR_AB;
		598	if (dep->de_flags & DEF_MULTI)
		599	dp_rcr_reg \|= RCR_AM;
		600	outb_reg0(dep, DP_RCR, dp_rcr_reg);
		601	}
		602
		603	/===========================================================================
		604	* dp_reset *
		605	===========================================================================/
		606	static void dp_reset(dep)
		607	dpeth_t *dep;
		608	{
		609	int i;
		610
		611	/* Stop chip */
		612	outb_reg0(dep, DP_CR, CR_STP \| CR_DM_ABORT);
		613	outb_reg0(dep, DP_RBCR0, 0);
		614	outb_reg0(dep, DP_RBCR1, 0);
		615	for (i= 0; i < 0x1000 && ((inb_reg0(dep, DP_ISR) & ISR_RST) == 0); i++)
		616	; /* Do nothing */
		617	outb_reg0(dep, DP_TCR, TCR_1EXTERNAL\|TCR_OFST);
		618	outb_reg0(dep, DP_CR, CR_STA\|CR_DM_ABORT);
		619	outb_reg0(dep, DP_TCR, TCR_NORMAL);
		620
		621	/* Acknowledge the ISR_RDC (remote dma) interrupt. */
		622	for (i= 0; i < 0x1000 && ((inb_reg0(dep, DP_ISR) & ISR_RDC) == 0); i++)
		623	; /* Do nothing */
		624	outb_reg0(dep, DP_ISR, inb_reg0(dep, DP_ISR) & ~ISR_RDC);
		625
		626	/* Reset the transmit ring. If we were transmitting a packet, we
		627	* pretend that the packet is processed. Higher layers will
		628	* retransmit if the packet wasn't actually sent.
		629	*/
		630	dep->de_sendq_head= dep->de_sendq_tail= 0;
		631	for (i= 0; i<dep->de_sendq_nr; i++)
		632	dep->de_sendq[i].sq_filled= 0;
		633	dp_send(dep);
		634	dep->de_flags &= ~DEF_STOPPED;
		635	}
		636
		637	/===========================================================================
		638	* dp_check_ints *
		639	===========================================================================/
4327	mejdrech	640	void dp_check_ints(dep, isr)
4163	mejdrech	641	dpeth_t *dep;
4327	mejdrech	642	int isr;
4163	mejdrech	643	{
4327	mejdrech	644	int /isr,/ tsr;
4163	mejdrech	645	int size, sendq_tail;
		646
		647	if (!(dep->de_flags & DEF_ENABLED))
		648	panic("", "dp8390: got premature interrupt", NO_NUM);
		649
		650	for(;;)
		651	{
4327	mejdrech	652	// isr = inb_reg0(dep, DP_ISR);
4163	mejdrech	653	if (!isr)
		654	break;
		655	outb_reg0(dep, DP_ISR, isr);
		656	if (isr & (ISR_PTX\|ISR_TXE))
		657	{
		658	if (isr & ISR_TXE)
		659	{
		660	#if DEBUG
		661	{ printf("%s: got send Error\n", dep->de_name); }
		662	#endif
		663	dep->de_stat.ets_sendErr++;
		664	}
		665	else
		666	{
		667	tsr = inb_reg0(dep, DP_TSR);
		668
		669	if (tsr & TSR_PTX) dep->de_stat.ets_packetT++;
		670	#if 0 /* Reserved in later manuals, should be ignored */
		671	if (!(tsr & TSR_DFR))
		672	{
		673	/* In most (all?) implementations of
		674	* the dp8390, this bit is set
		675	* when the packet is not deferred
		676	*/
		677	dep->de_stat.ets_transDef++;
		678	}
		679	#endif
		680	if (tsr & TSR_COL) dep->de_stat.ets_collision++;
		681	if (tsr & TSR_ABT) dep->de_stat.ets_transAb++;
		682	if (tsr & TSR_CRS) dep->de_stat.ets_carrSense++;
		683	if (tsr & TSR_FU
		684	&& ++dep->de_stat.ets_fifoUnder <= 10)
		685	{
		686	printf("%s: fifo underrun\n",
		687	dep->de_name);
		688	}
		689	if (tsr & TSR_CDH
		690	&& ++dep->de_stat.ets_CDheartbeat <= 10)
		691	{
		692	printf("%s: CD heart beat failure\n",
		693	dep->de_name);
		694	}
		695	if (tsr & TSR_OWC) dep->de_stat.ets_OWC++;
		696	}
		697	sendq_tail= dep->de_sendq_tail;
		698
		699	if (!(dep->de_sendq[sendq_tail].sq_filled))
		700	{
		701	/* Software bug? */
		702	assert(!debug);
		703
		704	/* Or hardware bug? */
		705	printf(
		706	"%s: transmit interrupt, but not sending\n",
		707	dep->de_name);
		708	continue;
		709	}
		710	dep->de_sendq[sendq_tail].sq_filled= 0;
		711	if (++sendq_tail == dep->de_sendq_nr)
		712	sendq_tail= 0;
		713	dep->de_sendq_tail= sendq_tail;
		714	if (dep->de_sendq[sendq_tail].sq_filled)
		715	{
		716	size= dep->de_sendq[sendq_tail].sq_size;
		717	outb_reg0(dep, DP_TPSR,
		718	dep->de_sendq[sendq_tail].sq_sendpage);
		719	outb_reg0(dep, DP_TBCR1, size >> 8);
		720	outb_reg0(dep, DP_TBCR0, size & 0xff);
		721	outb_reg0(dep, DP_CR, CR_TXP \| CR_EXTRA);
		722	}
		723	if (dep->de_flags & DEF_SEND_AVAIL)
		724	dp_send(dep);
		725	}
		726
		727	if (isr & ISR_PRX)
		728	{
		729	/* Only call dp_recv if there is a read request */
4332	mejdrech	730	// if (dep->de_flags) & DEF_READING)
4163	mejdrech	731	dp_recv(dep);
		732	}
		733
		734	if (isr & ISR_RXE) dep->de_stat.ets_recvErr++;
		735	if (isr & ISR_CNT)
		736	{
		737	dep->de_stat.ets_CRCerr += inb_reg0(dep, DP_CNTR0);
		738	dep->de_stat.ets_frameAll += inb_reg0(dep, DP_CNTR1);
		739	dep->de_stat.ets_missedP += inb_reg0(dep, DP_CNTR2);
		740	}
		741	if (isr & ISR_OVW)
		742	{
		743	dep->de_stat.ets_OVW++;
		744	#if 0
		745	{ printW(); printf(
		746	"%s: got overwrite warning\n", dep->de_name); }
		747	#endif
4332	mejdrech	748	/* if (dep->de_flags & DEF_READING)
4163	mejdrech	749	{
		750	printf(
		751	"dp_check_ints: strange: overwrite warning and pending read request\n");
		752	dp_recv(dep);
		753	}
4332	mejdrech	754	*/ }
4163	mejdrech	755	if (isr & ISR_RDC)
		756	{
		757	/* Nothing to do */
		758	}
		759	if (isr & ISR_RST)
		760	{
		761	/* this means we got an interrupt but the ethernet
		762	* chip is shutdown. We set the flag DEF_STOPPED,
		763	* and continue processing arrived packets. When the
		764	* receive buffer is empty, we reset the dp8390.
		765	*/
		766	#if 0
		767	{ printW(); printf(
		768	"%s: NIC stopped\n", dep->de_name); }
		769	#endif
		770	dep->de_flags \|= DEF_STOPPED;
		771	break;
		772	}
4327	mejdrech	773	isr = inb_reg0(dep, DP_ISR);
4163	mejdrech	774	}
4332	mejdrech	775	// if ((dep->de_flags & (DEF_READING\|DEF_STOPPED)) ==
		776	// (DEF_READING\|DEF_STOPPED))
		777	if ((dep->de_flags & DEF_STOPPED) == DEF_STOPPED )
4163	mejdrech	778	{
		779	/* The chip is stopped, and all arrived packets are
		780	* delivered.
		781	*/
		782	dp_reset(dep);
		783	}
		784	}
		785
		786	/===========================================================================
		787	* dp_recv *
		788	===========================================================================/
		789	static void dp_recv(dep)
		790	dpeth_t *dep;
		791	{
		792	dp_rcvhdr_t header;
		793	unsigned pageno, curr, next;
		794	vir_bytes length;
		795	int packet_processed, r;
		796	u16_t eth_type;
		797
		798	packet_processed = FALSE;
		799	pageno = inb_reg0(dep, DP_BNRY) + 1;
		800	if (pageno == dep->de_stoppage) pageno = dep->de_startpage;
		801
		802	do
		803	{
		804	outb_reg0(dep, DP_CR, CR_PS_P1 \| CR_EXTRA);
		805	curr = inb_reg1(dep, DP_CURR);
		806	outb_reg0(dep, DP_CR, CR_PS_P0 \| CR_EXTRA);
		807
		808	if (curr == pageno) break;
		809
		810	(dep->de_getblockf)(dep, pageno, (size_t)0, sizeof(header),
		811	&header);
		812	(dep->de_getblockf)(dep, pageno, sizeof(header) +
		813	2*sizeof(ether_addr_t), sizeof(eth_type), &eth_type);
		814
		815	length = (header.dr_rbcl \| (header.dr_rbch << 8)) -
		816	sizeof(dp_rcvhdr_t);
		817	next = header.dr_next;
		818	if (length < ETH_MIN_PACK_SIZE \|\|
		819	length > ETH_MAX_PACK_SIZE_TAGGED)
		820	{
		821	printf("%s: packet with strange length arrived: %d\n",
		822	dep->de_name, (int) length);
		823	next= curr;
		824	}
		825	else if (next < dep->de_startpage \|\| next >= dep->de_stoppage)
		826	{
		827	printf("%s: strange next page\n", dep->de_name);
		828	next= curr;
		829	}
		830	/* else if (eth_type == eth_ign_proto)
		831	{
		832	/ / Hack: ignore packets of a given protocol, useful
		833	* if you share a net with 80 computers sending
		834	* Amoeba FLIP broadcasts. (Protocol 0x8146.)
		835	*/
		836	/* static int first= 1;
		837	if (first)
		838	{
		839	first= 0;
		840	printf("%s: dropping proto 0x%04x packets\n",
		841	dep->de_name,
		842	ntohs(eth_ign_proto));
		843	}
		844	dep->de_stat.ets_packetR++;
		845	}
		846	*/ else if (header.dr_status & RSR_FO)
		847	{
		848	/* This is very serious, so we issue a warning and
		849	* reset the buffers */
		850	printf("%s: fifo overrun, resetting receive buffer\n",
		851	dep->de_name);
		852	dep->de_stat.ets_fifoOver++;
		853	next = curr;
		854	}
		855	else if ((header.dr_status & RSR_PRX) &&
		856	(dep->de_flags & DEF_ENABLED))
		857	{
		858	// if (dep->de_safecopy_read)
		859	// r = dp_pkt2user_s(dep, pageno, length);
		860	// else
		861	r = dp_pkt2user(dep, pageno, length);
		862	if (r != OK)
		863	return;
		864
		865	packet_processed = TRUE;
		866	dep->de_stat.ets_packetR++;
		867	}
		868	if (next == dep->de_startpage)
		869	outb_reg0(dep, DP_BNRY, dep->de_stoppage - 1);
		870	else
		871	outb_reg0(dep, DP_BNRY, next - 1);
		872
		873	pageno = next;
		874	}
		875	while (!packet_processed);
		876	}
		877
		878	/===========================================================================
		879	* dp_send *
		880	===========================================================================/
		881	static void dp_send(dep)
		882	dpeth_t *dep;
		883	{
4192	mejdrech	884	packet_t packet;
		885
		886	if (!(dep->de_flags & DEF_SEND_AVAIL))
4163	mejdrech	887	return;
		888
		889	dep->de_flags &= ~DEF_SEND_AVAIL;
4192	mejdrech	890	while( dep->packet_queue ){
		891	packet = dep->packet_queue;
		892	dep->packet_queue = pq_detach( packet );
		893	do_pwrite( dep, packet, TRUE );
		894	netif_pq_release( packet_get_id( packet ));
		895	-- dep->packet_count;
		896	}
		897	/* switch(dep->de_sendmsg.m_type)
4163	mejdrech	898	{
		899	case DL_WRITE: do_vwrite(&dep->de_sendmsg, TRUE, FALSE); break;
		900	case DL_WRITEV: do_vwrite(&dep->de_sendmsg, TRUE, TRUE); break;
		901	case DL_WRITEV_S: do_vwrite_s(&dep->de_sendmsg, TRUE); break;
		902	default:
		903	panic("", "dp8390: wrong type", dep->de_sendmsg.m_type);
		904	break;
		905	}
		906	*/
		907	}
		908
		909	/===========================================================================
		910	* dp_getblock *
		911	===========================================================================/
		912	static void dp_getblock(dep, page, offset, size, dst)
		913	dpeth_t *dep;
		914	int page;
		915	size_t offset;
		916	size_t size;
		917	void *dst;
		918	{
		919	// int r;
		920
		921	offset = page * DP_PAGESIZE + offset;
		922
		923	memcpy(dst, dep->de_locmem + offset, size);
		924	}
		925
		926	/===========================================================================
4192	mejdrech	927	* dp_pio8_getblock *
		928	===========================================================================/
		929	static void dp_pio8_getblock(dep, page, offset, size, dst)
		930	dpeth_t *dep;
		931	int page;
		932	size_t offset;
		933	size_t size;
		934	void *dst;
		935	{
		936	offset = page * DP_PAGESIZE + offset;
		937	outb_reg0(dep, DP_RBCR0, size & 0xFF);
		938	outb_reg0(dep, DP_RBCR1, size >> 8);
		939	outb_reg0(dep, DP_RSAR0, offset & 0xFF);
		940	outb_reg0(dep, DP_RSAR1, offset >> 8);
		941	outb_reg0(dep, DP_CR, CR_DM_RR \| CR_PS_P0 \| CR_STA);
		942
		943	insb(dep->de_data_port, dst, size);
		944	}
		945
		946	/===========================================================================
		947	* dp_pio16_getblock *
		948	===========================================================================/
		949	static void dp_pio16_getblock(dep, page, offset, size, dst)
		950	dpeth_t *dep;
		951	int page;
		952	size_t offset;
		953	size_t size;
		954	void *dst;
		955	{
		956	offset = page * DP_PAGESIZE + offset;
		957	outb_reg0(dep, DP_RBCR0, size & 0xFF);
		958	outb_reg0(dep, DP_RBCR1, size >> 8);
		959	outb_reg0(dep, DP_RSAR0, offset & 0xFF);
		960	outb_reg0(dep, DP_RSAR1, offset >> 8);
		961	outb_reg0(dep, DP_CR, CR_DM_RR \| CR_PS_P0 \| CR_STA);
		962
		963	assert (!(size & 1));
		964	insw(dep->de_data_port, dst, size);
		965	}
		966
		967	/===========================================================================
4163	mejdrech	968	* dp_pkt2user *
		969	===========================================================================/
		970	static int dp_pkt2user(dep, page, length)
		971	dpeth_t *dep;
		972	int page, length;
		973	{
		974	int last, count;
4192	mejdrech	975	packet_t packet;
4261	mejdrech	976	packet_t queue;
4163	mejdrech	977
4332	mejdrech	978	// if (!(dep->de_flags & DEF_READING))
		979	// return EGENERIC;
4163	mejdrech	980
4192	mejdrech	981	packet = netif_packet_get_1( length );
		982	if( ! packet ) return ENOMEM;
		983	dep->de_read_iovec.iod_iovec[0].iov_addr = ( vir_bytes ) packet_suffix( packet, length );
		984	dep->de_read_iovec.iod_iovec[0].iov_size = length;
		985	dep->de_read_iovec.iod_iovec_s = 1;
		986	dep->de_read_iovec.iod_iovec_addr = NULL;
		987
4163	mejdrech	988	last = page + (length - 1) / DP_PAGESIZE;
		989	if (last >= dep->de_stoppage)
		990	{
		991	count = (dep->de_stoppage - page) * DP_PAGESIZE -
		992	sizeof(dp_rcvhdr_t);
		993
		994	/* Save read_iovec since we need it twice. */
		995	dep->de_tmp_iovec = dep->de_read_iovec;
		996	(dep->de_nic2userf)(dep, page * DP_PAGESIZE +
		997	sizeof(dp_rcvhdr_t), &dep->de_tmp_iovec, 0, count);
		998	(dep->de_nic2userf)(dep, dep->de_startpage * DP_PAGESIZE,
		999	&dep->de_read_iovec, count, length - count);
		1000	}
		1001	else
		1002	{
		1003	(dep->de_nic2userf)(dep, page * DP_PAGESIZE +
		1004	sizeof(dp_rcvhdr_t), &dep->de_read_iovec, 0, length);
		1005	}
		1006
		1007	dep->de_read_s = length;
		1008	dep->de_flags \|= DEF_PACK_RECV;
4332	mejdrech	1009	// dep->de_flags &= ~DEF_READING;
4163	mejdrech	1010
4261	mejdrech	1011	queue = pq_add( dep->received_queue, packet, 0, 0 );
		1012	if( queue ){
		1013	dep->received_queue = queue;
		1014	}else{
4192	mejdrech	1015	netif_pq_release( packet_get_id( packet ));
		1016	}
4163	mejdrech	1017	return OK;
		1018	}
		1019
		1020	/===========================================================================
4192	mejdrech	1021	* dp_user2nic *
		1022	===========================================================================/
		1023	static void dp_user2nic(dep, iovp, offset, nic_addr, count)
		1024	dpeth_t *dep;
		1025	iovec_dat_t *iovp;
		1026	vir_bytes offset;
		1027	int nic_addr;
		1028	vir_bytes count;
		1029	{
		1030	vir_bytes vir_hw;//, vir_user;
		1031	int bytes, i, r;
		1032
		1033	vir_hw = (vir_bytes)dep->de_locmem + nic_addr;
		1034
		1035	i= 0;
		1036	while (count > 0)
		1037	{
		1038	if (i >= IOVEC_NR)
		1039	{
		1040	dp_next_iovec(iovp);
		1041	i= 0;
		1042	continue;
		1043	}
		1044	assert(i < iovp->iod_iovec_s);
		1045	if (offset >= iovp->iod_iovec[i].iov_size)
		1046	{
		1047	offset -= iovp->iod_iovec[i].iov_size;
		1048	i++;
		1049	continue;
		1050	}
		1051	bytes = iovp->iod_iovec[i].iov_size - offset;
		1052	if (bytes > count)
		1053	bytes = count;
		1054
		1055	r= sys_vircopy(iovp->iod_proc_nr, D,
		1056	iovp->iod_iovec[i].iov_addr + offset,
		1057	SELF, D, vir_hw, bytes);
		1058	if (r != OK)
		1059	panic("DP8390", "dp_user2nic: sys_vircopy failed", r);
		1060
		1061	count -= bytes;
		1062	vir_hw += bytes;
		1063	offset += bytes;
		1064	}
		1065	assert(count == 0);
		1066	}
		1067
		1068	/===========================================================================
		1069	* dp_pio8_user2nic *
		1070	===========================================================================/
		1071	static void dp_pio8_user2nic(dep, iovp, offset, nic_addr, count)
		1072	dpeth_t *dep;
		1073	iovec_dat_t *iovp;
		1074	vir_bytes offset;
		1075	int nic_addr;
		1076	vir_bytes count;
		1077	{
		1078	// phys_bytes phys_user;
		1079	int bytes, i;
		1080
		1081	outb_reg0(dep, DP_ISR, ISR_RDC);
		1082
		1083	outb_reg0(dep, DP_RBCR0, count & 0xFF);
		1084	outb_reg0(dep, DP_RBCR1, count >> 8);
		1085	outb_reg0(dep, DP_RSAR0, nic_addr & 0xFF);
		1086	outb_reg0(dep, DP_RSAR1, nic_addr >> 8);
		1087	outb_reg0(dep, DP_CR, CR_DM_RW \| CR_PS_P0 \| CR_STA);
		1088
		1089	i= 0;
		1090	while (count > 0)
		1091	{
		1092	if (i >= IOVEC_NR)
		1093	{
		1094	dp_next_iovec(iovp);
		1095	i= 0;
		1096	continue;
		1097	}
		1098	assert(i < iovp->iod_iovec_s);
		1099	if (offset >= iovp->iod_iovec[i].iov_size)
		1100	{
		1101	offset -= iovp->iod_iovec[i].iov_size;
		1102	i++;
		1103	continue;
		1104	}
		1105	bytes = iovp->iod_iovec[i].iov_size - offset;
		1106	if (bytes > count)
		1107	bytes = count;
		1108
		1109	do_vir_outsb(dep->de_data_port, iovp->iod_proc_nr,
		1110	iovp->iod_iovec[i].iov_addr + offset, bytes);
		1111	count -= bytes;
		1112	offset += bytes;
		1113	}
		1114	assert(count == 0);
		1115
		1116	for (i= 0; i<100; i++)
		1117	{
		1118	if (inb_reg0(dep, DP_ISR) & ISR_RDC)
		1119	break;
		1120	}
		1121	if (i == 100)
		1122	{
		1123	panic("", "dp8390: remote dma failed to complete", NO_NUM);
		1124	}
		1125	}
		1126
		1127	/===========================================================================
		1128	* dp_pio16_user2nic *
		1129	===========================================================================/
		1130	static void dp_pio16_user2nic(dep, iovp, offset, nic_addr, count)
		1131	dpeth_t *dep;
		1132	iovec_dat_t *iovp;
		1133	vir_bytes offset;
		1134	int nic_addr;
		1135	vir_bytes count;
		1136	{
		1137	vir_bytes vir_user;
		1138	vir_bytes ecount;
		1139	int i, r, bytes, user_proc;
		1140	u8_t two_bytes[2];
		1141	int odd_byte;
		1142
		1143	ecount= (count+1) & ~1;
		1144	odd_byte= 0;
		1145
		1146	outb_reg0(dep, DP_ISR, ISR_RDC);
		1147	outb_reg0(dep, DP_RBCR0, ecount & 0xFF);
		1148	outb_reg0(dep, DP_RBCR1, ecount >> 8);
		1149	outb_reg0(dep, DP_RSAR0, nic_addr & 0xFF);
		1150	outb_reg0(dep, DP_RSAR1, nic_addr >> 8);
		1151	outb_reg0(dep, DP_CR, CR_DM_RW \| CR_PS_P0 \| CR_STA);
		1152
		1153	i= 0;
		1154	while (count > 0)
		1155	{
		1156	if (i >= IOVEC_NR)
		1157	{
		1158	dp_next_iovec(iovp);
		1159	i= 0;
		1160	continue;
		1161	}
		1162	assert(i < iovp->iod_iovec_s);
		1163	if (offset >= iovp->iod_iovec[i].iov_size)
		1164	{
		1165	offset -= iovp->iod_iovec[i].iov_size;
		1166	i++;
		1167	continue;
		1168	}
		1169	bytes = iovp->iod_iovec[i].iov_size - offset;
		1170	if (bytes > count)
		1171	bytes = count;
		1172
		1173	user_proc= iovp->iod_proc_nr;
		1174	vir_user= iovp->iod_iovec[i].iov_addr + offset;
		1175	if (odd_byte)
		1176	{
		1177	r= sys_vircopy(user_proc, D, vir_user,
		1178	SELF, D, (vir_bytes)&two_bytes[1], 1);
		1179	if (r != OK)
		1180	{
		1181	panic("DP8390",
		1182	"dp_pio16_user2nic: sys_vircopy failed",
		1183	r);
		1184	}
		1185	outw(dep->de_data_port, (u16_t )two_bytes);
		1186	count--;
		1187	offset++;
		1188	bytes--;
		1189	vir_user++;
		1190	odd_byte= 0;
		1191	if (!bytes)
		1192	continue;
		1193	}
		1194	ecount= bytes & ~1;
		1195	if (ecount != 0)
		1196	{
		1197	do_vir_outsw(dep->de_data_port, user_proc, vir_user,
		1198	ecount);
		1199	count -= ecount;
		1200	offset += ecount;
		1201	bytes -= ecount;
		1202	vir_user += ecount;
		1203	}
		1204	if (bytes)
		1205	{
		1206	assert(bytes == 1);
		1207	r= sys_vircopy(user_proc, D, vir_user,
		1208	SELF, D, (vir_bytes)&two_bytes[0], 1);
		1209	if (r != OK)
		1210	{
		1211	panic("DP8390",
		1212	"dp_pio16_user2nic: sys_vircopy failed",
		1213	r);
		1214	}
		1215	count--;
		1216	offset++;
		1217	bytes--;
		1218	vir_user++;
		1219	odd_byte= 1;
		1220	}
		1221	}
		1222	assert(count == 0);
		1223
		1224	if (odd_byte)
		1225	outw(dep->de_data_port, (u16_t )two_bytes);
		1226
		1227	for (i= 0; i<100; i++)
		1228	{
		1229	if (inb_reg0(dep, DP_ISR) & ISR_RDC)
		1230	break;
		1231	}
		1232	if (i == 100)
		1233	{
		1234	panic("", "dp8390: remote dma failed to complete", NO_NUM);
		1235	}
		1236	}
		1237
		1238	/===========================================================================
4163	mejdrech	1239	* dp_nic2user *
		1240	===========================================================================/
		1241	static void dp_nic2user(dep, nic_addr, iovp, offset, count)
		1242	dpeth_t *dep;
		1243	int nic_addr;
		1244	iovec_dat_t *iovp;
		1245	vir_bytes offset;
		1246	vir_bytes count;
		1247	{
4192	mejdrech	1248	vir_bytes vir_hw;//, vir_user;
4163	mejdrech	1249	int bytes, i, r;
		1250
		1251	vir_hw = (vir_bytes)dep->de_locmem + nic_addr;
		1252
		1253	i= 0;
		1254	while (count > 0)
		1255	{
		1256	if (i >= IOVEC_NR)
		1257	{
		1258	dp_next_iovec(iovp);
		1259	i= 0;
		1260	continue;
		1261	}
		1262	assert(i < iovp->iod_iovec_s);
		1263	if (offset >= iovp->iod_iovec[i].iov_size)
		1264	{
		1265	offset -= iovp->iod_iovec[i].iov_size;
		1266	i++;
		1267	continue;
		1268	}
		1269	bytes = iovp->iod_iovec[i].iov_size - offset;
		1270	if (bytes > count)
		1271	bytes = count;
		1272
		1273	r= sys_vircopy(SELF, D, vir_hw,
		1274	iovp->iod_proc_nr, D,
		1275	iovp->iod_iovec[i].iov_addr + offset, bytes);
		1276	if (r != OK)
		1277	panic("DP8390", "dp_nic2user: sys_vircopy failed", r);
		1278
		1279	count -= bytes;
		1280	vir_hw += bytes;
		1281	offset += bytes;
		1282	}
		1283	assert(count == 0);
		1284	}
		1285
		1286	/===========================================================================
4192	mejdrech	1287	* dp_pio8_nic2user *
		1288	===========================================================================/
		1289	static void dp_pio8_nic2user(dep, nic_addr, iovp, offset, count)
		1290	dpeth_t *dep;
		1291	int nic_addr;
		1292	iovec_dat_t *iovp;
		1293	vir_bytes offset;
		1294	vir_bytes count;
		1295	{
		1296	// phys_bytes phys_user;
		1297	int bytes, i;
		1298
		1299	outb_reg0(dep, DP_RBCR0, count & 0xFF);
		1300	outb_reg0(dep, DP_RBCR1, count >> 8);
		1301	outb_reg0(dep, DP_RSAR0, nic_addr & 0xFF);
		1302	outb_reg0(dep, DP_RSAR1, nic_addr >> 8);
		1303	outb_reg0(dep, DP_CR, CR_DM_RR \| CR_PS_P0 \| CR_STA);
		1304
		1305	i= 0;
		1306	while (count > 0)
		1307	{
		1308	if (i >= IOVEC_NR)
		1309	{
		1310	dp_next_iovec(iovp);
		1311	i= 0;
		1312	continue;
		1313	}
		1314	assert(i < iovp->iod_iovec_s);
		1315	if (offset >= iovp->iod_iovec[i].iov_size)
		1316	{
		1317	offset -= iovp->iod_iovec[i].iov_size;
		1318	i++;
		1319	continue;
		1320	}
		1321	bytes = iovp->iod_iovec[i].iov_size - offset;
		1322	if (bytes > count)
		1323	bytes = count;
		1324
		1325	do_vir_insb(dep->de_data_port, iovp->iod_proc_nr,
		1326	iovp->iod_iovec[i].iov_addr + offset, bytes);
		1327	count -= bytes;
		1328	offset += bytes;
		1329	}
		1330	assert(count == 0);
		1331	}
		1332
		1333	/===========================================================================
		1334	* dp_pio16_nic2user *
		1335	===========================================================================/
		1336	static void dp_pio16_nic2user(dep, nic_addr, iovp, offset, count)
		1337	dpeth_t *dep;
		1338	int nic_addr;
		1339	iovec_dat_t *iovp;
		1340	vir_bytes offset;
		1341	vir_bytes count;
		1342	{
		1343	vir_bytes vir_user;
		1344	vir_bytes ecount;
		1345	int i, r, bytes, user_proc;
		1346	u8_t two_bytes[2];
		1347	int odd_byte;
		1348
		1349	ecount= (count+1) & ~1;
		1350	odd_byte= 0;
		1351
		1352	outb_reg0(dep, DP_RBCR0, ecount & 0xFF);
		1353	outb_reg0(dep, DP_RBCR1, ecount >> 8);
		1354	outb_reg0(dep, DP_RSAR0, nic_addr & 0xFF);
		1355	outb_reg0(dep, DP_RSAR1, nic_addr >> 8);
		1356	outb_reg0(dep, DP_CR, CR_DM_RR \| CR_PS_P0 \| CR_STA);
		1357
		1358	i= 0;
		1359	while (count > 0)
		1360	{
		1361	if (i >= IOVEC_NR)
		1362	{
		1363	dp_next_iovec(iovp);
		1364	i= 0;
		1365	continue;
		1366	}
		1367	assert(i < iovp->iod_iovec_s);
		1368	if (offset >= iovp->iod_iovec[i].iov_size)
		1369	{
		1370	offset -= iovp->iod_iovec[i].iov_size;
		1371	i++;
		1372	continue;
		1373	}
		1374	bytes = iovp->iod_iovec[i].iov_size - offset;
		1375	if (bytes > count)
		1376	bytes = count;
		1377
		1378	user_proc= iovp->iod_proc_nr;
		1379	vir_user= iovp->iod_iovec[i].iov_addr + offset;
		1380	if (odd_byte)
		1381	{
		1382	r= sys_vircopy(SELF, D, (vir_bytes)&two_bytes[1],
		1383	user_proc, D, vir_user, 1);
		1384	if (r != OK)
		1385	{
		1386	panic("DP8390",
		1387	"dp_pio16_nic2user: sys_vircopy failed",
		1388	r);
		1389	}
		1390	count--;
		1391	offset++;
		1392	bytes--;
		1393	vir_user++;
		1394	odd_byte= 0;
		1395	if (!bytes)
		1396	continue;
		1397	}
		1398	ecount= bytes & ~1;
		1399	if (ecount != 0)
		1400	{
		1401	do_vir_insw(dep->de_data_port, user_proc, vir_user,
		1402	ecount);
		1403	count -= ecount;
		1404	offset += ecount;
		1405	bytes -= ecount;
		1406	vir_user += ecount;
		1407	}
		1408	if (bytes)
		1409	{
		1410	assert(bytes == 1);
		1411	(u16_t )two_bytes= inw(dep->de_data_port);
		1412	r= sys_vircopy(SELF, D, (vir_bytes)&two_bytes[0],
		1413	user_proc, D, vir_user, 1);
		1414	if (r != OK)
		1415	{
		1416	panic("DP8390",
		1417	"dp_pio16_nic2user: sys_vircopy failed",
		1418	r);
		1419	}
		1420	count--;
		1421	offset++;
		1422	bytes--;
		1423	vir_user++;
		1424	odd_byte= 1;
		1425	}
		1426	}
		1427	assert(count == 0);
		1428	}
		1429
		1430	/===========================================================================
		1431	* dp_next_iovec *
		1432	===========================================================================/
		1433	static void dp_next_iovec(iovp)
		1434	iovec_dat_t *iovp;
		1435	{
		1436	assert(iovp->iod_iovec_s > IOVEC_NR);
		1437
		1438	iovp->iod_iovec_s -= IOVEC_NR;
		1439
		1440	iovp->iod_iovec_addr += IOVEC_NR * sizeof(iovec_t);
		1441
		1442	get_userdata(iovp->iod_proc_nr, iovp->iod_iovec_addr,
		1443	(iovp->iod_iovec_s > IOVEC_NR ? IOVEC_NR : iovp->iod_iovec_s) *
		1444	sizeof(iovec_t), iovp->iod_iovec);
		1445	}
		1446
		1447	/===========================================================================
4163	mejdrech	1448	* conf_hw *
		1449	===========================================================================/
		1450	static void conf_hw(dep)
		1451	dpeth_t *dep;
		1452	{
		1453	// static eth_stat_t empty_stat = {0, 0, 0, 0, 0, 0 /* ,... */ };
		1454
		1455	// int ifnr;
		1456	// dp_conf_t *dcp;
		1457
		1458	// dep->de_mode= DEM_DISABLED; /* Superfluous */
		1459	// ifnr= dep-de_table;
		1460
		1461	// dcp= &dp_conf[ifnr];
		1462	// update_conf(dep, dcp);
		1463	// if (dep->de_mode != DEM_ENABLED)
		1464	// return;
		1465	if (!wdeth_probe(dep) && !ne_probe(dep) && !el2_probe(dep))
		1466	{
		1467	printf("%s: No ethernet card found at 0x%x\n",
		1468	dep->de_name, dep->de_base_port);
		1469	dep->de_mode= DEM_DISABLED;
		1470	return;
		1471	}
		1472
		1473	/* XXX */ if (dep->de_linmem == 0) dep->de_linmem= 0xFFFF0000;
		1474
		1475	dep->de_mode = DEM_ENABLED;
		1476
		1477	dep->de_flags = DEF_EMPTY;
		1478	// dep->de_stat = empty_stat;
		1479	}
		1480
		1481	/===========================================================================
		1482	* map_hw_buffer *
		1483	===========================================================================/
		1484	static void map_hw_buffer(dep)
		1485	dpeth_t *dep;
		1486	{
		1487	// int r;
		1488	// size_t o, size;
		1489	// char buf, abuf;
		1490
		1491	if (dep->de_prog_IO)
		1492	{
4192	mejdrech	1493	#if 0
4163	mejdrech	1494	if(debug){
		1495	printf(
		1496	"map_hw_buffer: programmed I/O, no need to map buffer\n");
		1497	}
4192	mejdrech	1498	#endif
4163	mejdrech	1499	dep->de_locmem = (char )-dep->de_ramsize; / trap errors */
		1500	return;
4192	mejdrech	1501	}else{
4307	mejdrech	1502	printf( "map_hw_buffer: no buffer!\n" );
4163	mejdrech	1503	}
		1504
		1505	// size = dep->de_ramsize + PAGE_SIZE; /* Add PAGE_SIZE for
		1506	// * alignment
		1507	// */
		1508	// buf= malloc(size);
		1509	// if (buf == NULL)
		1510	// panic(__FILE__, "map_hw_buffer: cannot malloc size", size);
		1511	// o= PAGE_SIZE - ((vir_bytes)buf % PAGE_SIZE);
		1512	// abuf= buf + o;
		1513	// printf("buf at 0x%x, abuf at 0x%x\n", buf, abuf);
		1514
		1515	// r= sys_vm_map(SELF, 1 /* map */, (vir_bytes)abuf,
		1516	// dep->de_ramsize, (phys_bytes)dep->de_linmem);
		1517	// if (r != OK)
		1518	// panic(__FILE__, "map_hw_buffer: sys_vm_map failed", r);
		1519	// dep->de_locmem = abuf;
		1520	}
		1521
		1522	/===========================================================================
		1523	* reply *
		1524	===========================================================================/
		1525	static void reply(dep, err, may_block)
		1526	dpeth_t *dep;
		1527	int err;
		1528	int may_block;
		1529	{
		1530	/* message reply;
		1531	int status;
		1532	int r;
		1533
		1534	status = 0;
		1535	if (dep->de_flags & DEF_PACK_SEND)
		1536	status \|= DL_PACK_SEND;
		1537	if (dep->de_flags & DEF_PACK_RECV)
		1538	status \|= DL_PACK_RECV;
		1539
		1540	reply.m_type = DL_TASK_REPLY;
		1541	reply.DL_PORT = dep - de_table;
		1542	reply.DL_PROC = dep->de_client;
		1543	reply.DL_STAT = status \| ((u32_t) err << 16);
		1544	reply.DL_COUNT = dep->de_read_s;
		1545	reply.DL_CLCK = 0; // Don't know */
		1546	/* r= send(dep->de_client, &reply);
		1547
		1548	if (r == ELOCKED && may_block)
		1549	{
		1550	#if 0
		1551	printf("send locked\n");
		1552	#endif
		1553	return;
		1554	}
		1555
		1556	if (r < 0)
		1557	panic("", "dp8390: send failed:", r);
		1558
4327	mejdrech	1559	*/ dep->de_read_s = 0;
		1560	dep->de_flags &= ~(DEF_PACK_SEND \| DEF_PACK_RECV);
4163	mejdrech	1561	}
		1562
4192	mejdrech	1563	/===========================================================================
		1564	* get_userdata *
		1565	===========================================================================/
		1566	static void get_userdata(user_proc, user_addr, count, loc_addr)
		1567	int user_proc;
		1568	vir_bytes user_addr;
		1569	vir_bytes count;
		1570	void *loc_addr;
		1571	{
		1572	int r;
		1573
		1574	r= sys_vircopy(user_proc, D, user_addr,
		1575	SELF, D, (vir_bytes)loc_addr, count);
		1576	if (r != OK)
		1577	panic("DP8390", "get_userdata: sys_vircopy failed", r);
		1578	}
		1579
		1580	static void insb(port_t port, void *buf, size_t size)
		1581	{
4243	mejdrech	1582	size_t i;
4192	mejdrech	1583
		1584	for( i = 0; i < size; ++ i ){
		1585	(( uint8_t )( buf + i )) = inb( port );
		1586	}
		1587	}
		1588
		1589	static void insw(port_t port, void *buf, size_t size)
		1590	{
4243	mejdrech	1591	size_t i;
4192	mejdrech	1592
		1593	for( i = 0; i < size; i += 2 ){
		1594	(( uint16_t )( buf + i )) = inw( port );
		1595	}
		1596	}
		1597
		1598	static void outsb(port_t port, void *buf, size_t size)
		1599	{
4243	mejdrech	1600	size_t i;
4192	mejdrech	1601
		1602	for( i = 0; i < size; ++ i ){
		1603	outb( port, (( uint8_t )( buf + i )));
		1604	}
		1605	}
		1606
		1607	static void outsw(port_t port, void *buf, size_t size)
		1608	{
4243	mejdrech	1609	size_t i;
4192	mejdrech	1610
		1611	for( i = 0; i < size; i += 2 ){
		1612	outw( port, (( uint16_t )( buf + i )));
		1613	}
		1614	}
		1615
4163	mejdrech	1616	/*
		1617	* $PchId: dp8390.c,v 1.25 2005/02/10 17:32:07 philip Exp $
		1618	*/
		1619
		1620	/** @}
		1621	*/

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(root)/branches/network/uspace/srv/net/netif/dp8390/dp8390.c – Rev 4351