ecos: packages/devs/eth/cl/cs8900a/current/src/if

annotate packages/devs/eth/cl/cs8900a/current/src/if_cs8900a.c @ 2428:c4195ff791d2

* add timeout to potential infinite loop in cs8900a_send per bugzilla report 1000281

author	asl
date	Tue, 11 Sep 2007 17:37:22 +0000
parents	7a0284a514e9
children	b3f68c7d3671

rev	line source
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	1 //==========================================================================
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	2 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	3 // dev/if_cs8900a.c
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	4 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	5 // Device driver for Cirrus Logic CS8900A ethernet controller
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	6 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	7 //==========================================================================
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	8 //####ECOSGPLCOPYRIGHTBEGIN####
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	9 // -------------------------------------------
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	10 // This file is part of eCos, the Embedded Configurable Operating System.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	12 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	13 // eCos is free software; you can redistribute it and/or modify it under
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	14 // the terms of the GNU General Public License as published by the Free
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	15 // Software Foundation; either version 2 or (at your option) any later version.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	16 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	20 // for more details.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	21 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	22 // You should have received a copy of the GNU General Public License along
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	23 // with eCos; if not, write to the Free Software Foundation, Inc.,
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	25 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	26 // As a special exception, if other files instantiate templates or use macros
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	27 // or inline functions from this file, or you compile this file and link it
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	28 // with other works to produce a work based on this file, this file does not
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	29 // by itself cause the resulting work to be covered by the GNU General Public
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	30 // License. However the source code for this file must still be made available
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	31 // in accordance with section (3) of the GNU General Public License.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	32 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	33 // This exception does not invalidate any other reasons why a work based on
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	34 // this file might be covered by the GNU General Public License.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	35 //
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
210 d2c90368aeef Merge from eCos master repository on 2002-05-23-21:39:14-BST jlarmour parents: 208 diff changeset	37 // at http://sources.redhat.com/ecos/ecos-license/
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	38 // -------------------------------------------
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	39 //####ECOSGPLCOPYRIGHTEND####
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	40 //####BSDCOPYRIGHTBEGIN####
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	41 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	42 // -------------------------------------------
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	43 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	44 // Portions of this software may have been derived from OpenBSD or other sources,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	45 // and are covered by the appropriate copyright disclaimers included herein.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	46 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	47 // -------------------------------------------
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	48 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	49 //####BSDCOPYRIGHTEND####
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	50 //==========================================================================
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	51 //#####DESCRIPTIONBEGIN####
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	52 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	53 // Author(s): gthomas
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	54 // Contributors: gthomas, jskov
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	55 // Date: 2001-11-02
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	56 // Purpose:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	57 // Description: Driver for CS8900 ethernet controller
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	58 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	59 // Note: Platform can define CYGSEM_DEVS_ETH_CL_CS8900A_NOINTS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	60 // to get a timer thread polling instead of interupt based
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	61 // operation.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	62 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	63 // Note: Driver will need some changes to support multiple instances
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	64 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	65 //####DESCRIPTIONEND####
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	66 //
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	67 //==========================================================================
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	68
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	69 #include <pkgconf/system.h>
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	70 #ifdef CYGPKG_KERNEL
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	71 #include <cyg/kernel/kapi.h>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	72 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	73 #include <pkgconf/io_eth_drivers.h>
219 ae8511176102 Fix CDL dependencies for stand-alone/system operation. gthomas parents: 212 diff changeset	74
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	75 #include <cyg/infra/cyg_type.h>
1681 67ee34ead3f4 * src/if_cs8900a.c: Added missing include of cyg_ass.h. asl parents: 1659 diff changeset	76 #include <cyg/infra/cyg_ass.h>
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	77 #include <cyg/hal/hal_arch.h>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	78 #include <cyg/hal/hal_intr.h>
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	79 #include <cyg/hal/hal_endian.h>
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	80 #include <cyg/infra/diag.h>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	81 #include <cyg/hal/drv_api.h>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	82 #undef __ECOS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	83 #define __ECOS
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	84 #include <cyg/io/eth/eth_drv.h>
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	85 #include <cyg/io/eth/netdev.h>
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	86
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	87 #include <cyg/io/cs8900.h>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	88
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	89 #define __WANT_DEVS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	90 #include CYGDAT_DEVS_ETH_CL_CS8900A_INL
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	91 #undef __WANT_DEVS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	92
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	93 // NOINTS operation only relevant when the NET package is loaded
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	94 #if !defined(CYGPKG_NET) \|\| !defined(CYGPKG_KERNEL)
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	95 # undef CYGSEM_DEVS_ETH_CL_CS8900A_NOINTS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	96 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	97
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	98 #ifdef CYGSEM_DEVS_ETH_CL_CS8900A_NOINTS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	99 #define STACK_SIZE CYGNUM_HAL_STACK_SIZE_MINIMUM
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	100 static char cs8900a_fake_int_stack[STACK_SIZE];
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	101 static cyg_thread cs8900a_fake_int_thread_data;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	102 static cyg_handle_t cs8900a_fake_int_thread_handle;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	103 static void cs8900a_fake_int(cyg_addrword_t);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	104 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	105
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	106 #ifdef CYGDBG_IO_ETH_DRIVERS_DEBUG
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	107 extern int cyg_io_eth_net_debug;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	108 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	109
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	110 static void cs8900a_poll(struct eth_drv_sc *sc);
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	111 #ifdef CYGINT_IO_ETH_INT_SUPPORT_REQUIRED
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	112 // This ISR is called when the ethernet interrupt occurs
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	113 static int
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	114 cs8900a_isr(cyg_vector_t vector, cyg_addrword_t data, HAL_SavedRegisters *regs)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	115 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	116 cs8900a_priv_data_t* cpd = (cs8900a_priv_data_t *)data;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	117 cyg_drv_interrupt_mask(cpd->interrupt);
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	118 cyg_drv_interrupt_acknowledge(cpd->interrupt);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	119 return (CYG_ISR_HANDLED\|CYG_ISR_CALL_DSR); // Run the DSR
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	120 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	121
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	122 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	123 cs8900a_dsr(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	124 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	125 // This conditioning out is necessary because of explicit calls to this
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	126 // DSR - which would not ever be called in the case of a polled mode
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	127 // usage ie. in RedBoot.
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	128 #ifdef CYGINT_IO_ETH_INT_SUPPORT_REQUIRED
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	129 cs8900a_priv_data_t* cpd = (cs8900a_priv_data_t *)data;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	130 struct cyg_netdevtab_entry ndp = (struct cyg_netdevtab_entry )(cpd->tab);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	131 struct eth_drv_sc sc = (struct eth_drv_sc )(ndp->device_instance);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	132
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	133 DEBUG_FUNCTION();
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	134
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	135 // but here, it must be a *sc:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	136 eth_drv_dsr( vector, count, (cyg_addrword_t)sc );
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	137 #else
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	138 # ifndef CYGPKG_REDBOOT
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	139 # error Empty CS8900A ethernet DSR is compiled. Is this what you want?
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	140 # endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	141 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	142 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	143 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	144
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	145 // The deliver function (ex-DSR) handles the ethernet [logical] processing
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	146 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	147 cs8900a_deliver(struct eth_drv_sc *sc)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	148 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	149 cs8900a_poll(sc);
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	150 #ifdef CYGINT_IO_ETH_INT_SUPPORT_REQUIRED
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	151 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	152 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	153 // Allow interrupts to happen again
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	154 cyg_drv_interrupt_unmask(cpd->interrupt);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	155 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	156 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	157 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	158
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	159 static int
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	160 cs8900a_int_vector(struct eth_drv_sc *sc)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	161 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	162 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	163 return (cpd->interrupt);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	164 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	165
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	166 static bool
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	167 cs8900a_init(struct cyg_netdevtab_entry *tab)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	168 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	169 struct eth_drv_sc sc = (struct eth_drv_sc )tab->device_instance;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	170 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	171 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	172 cyg_uint16 chip_type, chip_rev, chip_status;
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	173 cyg_uint16 i;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	174 long timeout = 500000;
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	175 cyg_bool esa_configured = false;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	176
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	177 cpd->tab = tab;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	178
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	179 CYGHWR_CL_CS8900A_PLF_INIT(cpd);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	180
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	181 #ifdef CYGINT_IO_ETH_INT_SUPPORT_REQUIRED
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	182 // Initialize environment, setup interrupt handler
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	183 cyg_drv_interrupt_create(cpd->interrupt,
2107 7a0284a514e9 * include/cs8900a.h: asl parents: 1971 diff changeset	184 cpd->priority,
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	185 (cyg_addrword_t)cpd, // Data item passed to interrupt handler
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	186 (cyg_ISR_t *)cs8900a_isr,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	187 (cyg_DSR_t *)cs8900a_dsr,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	188 &cpd->interrupt_handle,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	189 &cpd->interrupt_object);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	190 cyg_drv_interrupt_attach(cpd->interrupt_handle);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	191 cyg_drv_interrupt_acknowledge(cpd->interrupt);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	192 cyg_drv_interrupt_unmask(cpd->interrupt);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	193
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	194 #ifdef CYGSEM_DEVS_ETH_CL_CS8900A_NOINTS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	195 cyg_thread_create(1, // Priority
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	196 cs8900a_fake_int, // entry
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	197 (cyg_addrword_t)sc, // entry parameter
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	198 "CS8900 int", // Name
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	199 &cs8900a_fake_int_stack[0], // Stack
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	200 STACK_SIZE, // Size
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	201 &cs8900a_fake_int_thread_handle, // Handle
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	202 &cs8900a_fake_int_thread_data // Thread data structure
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	203 );
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	204 cyg_thread_resume(cs8900a_fake_int_thread_handle); // Start it
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	205 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	206 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	207
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	208 // Read controller ID - the first is a dummy read, since (on some
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	209 // platforms) the first access to the controller seems to skip the
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	210 // MSB 8 bits.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	211 get_reg(base, PP_ChipID);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	212 chip_type = get_reg(base, PP_ChipID);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	213 chip_rev = get_reg(base, PP_ChipRev);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	214 #if DEBUG & 8
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	215 diag_printf("CS8900A[%p] - type: 0x%04x, rev: 0x%04x\n", base, chip_type, chip_rev);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	216 #endif
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	217 if (chip_type != PP_ChipID_CL) {
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	218 #if DEBUG & 8
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	219 diag_printf("CS8900 - invalid type (0x%04x), must be 0x630e\n", chip_type);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	220 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	221 return false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	222 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	223
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	224 CYGHWR_CL_CS8900A_PLF_RESET(base);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	225 put_reg(base, PP_SelfCtl, PP_SelfCtl_Reset); // Reset chip
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	226
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	227 CYGHWR_CL_CS8900A_PLF_POST_RESET(base);
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	228
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	229 while ((get_reg(base, PP_SelfStat) & PP_SelfStat_InitD) == 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	230 if (--timeout <= 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	231 #if DEBUG & 8
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	232 diag_printf("CS8900 didn't reset - abort!\n");
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	233 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	234 return false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	235 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	236 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	237
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	238 chip_status = get_reg(base, PP_SelfStat);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	239 #if DEBUG & 8
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	240 diag_printf("CS8900 - status: 0x%04x (%sEEPROM present)\n", chip_status,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	241 chip_status & PP_SelfStat_EEPROM ? "" : "no ");
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	242 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	243
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	244
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	245 // Disable reception whilst finding the ESA
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	246 put_reg(base, PP_LineCTL, 0 );
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	247 // Find ESA - check possible sources in sequence and stop when
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	248 // one provides the ESA:
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	249 // RedBoot option (via provide_esa)
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	250 // Compile-time configuration
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	251 // EEPROM
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	252 // <fail configuration of device>
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	253 if (NULL != cpd->provide_esa) {
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	254 esa_configured = cpd->provide_esa(cpd);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	255 # if DEBUG & 8
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	256 if (esa_configured)
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	257 diag_printf("Got ESA from RedBoot option\n");
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	258 # endif
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	259 }
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	260 if (!esa_configured && cpd->hardwired_esa) {
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	261 // ESA is already set in cpd->esa[]
1971 915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	262 #if DEBUG & 8
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	263 diag_printf("Got hardcoded ESA\n");
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	264 #endif
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	265 esa_configured = true;
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	266 }
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	267 if (!esa_configured && (chip_status & PP_SelfStat_EEPROM)) {
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	268 // Get ESA from EEPROM - via the PP_IA registers
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	269 cyg_uint16 esa_word;
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	270 for (i = 0; i < sizeof(cpd->esa); i += 2) {
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	271 #ifndef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	272 esa_word = get_reg(base, PP_IA+i);
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	273 cpd->esa[i] = (esa_word & 0xFF);
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	274 cpd->esa[i+1] = (esa_word >> 8) & 0xFF;
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	275 #else
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	276 esa_word = get_reg(base, PP_IA+CYG_SWAP16(i));
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	277 cpd->esa[i+1] = (esa_word & 0xFF);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	278 cpd->esa[i] = (esa_word >> 8) & 0xFF;
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	279 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	280 }
1971 915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	281 #if DEBUG & 8
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	282 diag_printf("Got EEPROM ESA\n");
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	283 #endif
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	284 esa_configured = true;
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	285 }
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	286 if (!esa_configured) {
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	287 # if DEBUG & 8
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	288 diag_printf("CS8900 - no EEPROM, static ESA or RedBoot config option.\n");
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	289 # endif
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	290 return false;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	291 }
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	292
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	293 // Tell the chip what ESA to use
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	294 for (i = 0; i < sizeof(cpd->esa); i += 2) {
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	295 #ifndef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	296 put_reg(base, PP_IA+i, cpd->esa[i] \| (cpd->esa[i+1] << 8));
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	297 #else
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	298 put_reg(base, PP_IA+CYG_SWAP16(i), cpd->esa[i+1] \| (cpd->esa[i] << 8));
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	299 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	300 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	301 // Set logical address mask
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	302 for (i = 0; i < 8; i += 2) {
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	303 #ifndef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	304 put_reg(base, PP_LAF+i, 0xFFFF);
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	305 #else
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	306 put_reg(base, PP_LAF+CYG_SWAP16(i), 0xFFFF);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	307 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	308 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	309 # if DEBUG & 8
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	310 diag_printf("ESA %02x:%02x:%02x:%02x:%02x:%02x\n",
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	311 cpd->esa[0], cpd->esa[1], cpd->esa[2],
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	312 cpd->esa[3], cpd->esa[4], cpd->esa[5]);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	313 # endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	314
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	315 // Initialize upper level driver
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	316 (sc->funs->eth_drv->init)(sc, cpd->esa);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	317
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	318 return true;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	319 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	320
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	321 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	322 cs8900a_stop(struct eth_drv_sc *sc)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	323 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	324 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	325 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	326
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	327 put_reg(base, PP_LineCTL, 0);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	328 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	329
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	330 // This function is called to "start up" the interface. It may be called
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	331 // multiple times, even when the hardware is already running. It will be
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	332 // called whenever something "hardware oriented" changes and should leave
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	333 // the hardware ready to send/receive packets.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	334 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	335 cs8900a_start(struct eth_drv_sc sc, cyg_uint8 esa, int flags)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	336 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	337 cyg_uint16 stat;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	338 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	339 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	340
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	341 put_reg(base, PP_BusCtl, PP_BusCtl_MemoryE); // Disable interrupts, memory mode
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	342 put_reg(base, PP_IntReg, PP_IntReg_IRQ0); // Only possibility
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	343 put_reg(base, PP_RxCFG, PP_RxCFG_RxOK \| PP_RxCFG_CRC \|
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	344 PP_RxCFG_RUNT \| PP_RxCFG_EXTRA);
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	345 cpd->rxmode = PP_RxCTL_RxOK \| PP_RxCTL_Broadcast \| PP_RxCTL_IA;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	346 put_reg(base, PP_RxCTL, cpd->rxmode);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	347 put_reg(base, PP_TxCFG, PP_TxCFG_TxOK \| PP_TxCFG_Collision \|
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	348 PP_TxCFG_CRS \| PP_TxCFG_SQE \| PP_TxCFG_Late \|
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	349 PP_TxCFG_Jabber \| PP_TxCFG_16Collisions);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	350 put_reg(base, PP_BufCFG, PP_BufCFG_TxRDY \| PP_BufCFG_TxUE \| PP_BufCFG_RxMiss \|
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	351 PP_BufCFG_TxCol \| PP_BufCFG_Miss \| PP_BufCFG_SWI);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	352 put_reg(base, PP_IntReg, PP_IntReg_IRQ0); // Only possibility
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	353 put_reg(base, PP_LineCTL, PP_LineCTL_Rx \| PP_LineCTL_Tx);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	354 // Clear Interrupt Status Queue before enabling interrupts
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	355 do {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	356 HAL_READ_UINT16(cpd->base+CS8900A_ISQ, stat);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	357 } while (stat != 0) ;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	358 cpd->txbusy = false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	359 put_reg(base, PP_BusCtl, PP_BusCtl_EnableIRQ);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	360 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	361
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	362 // This routine is called to perform special "control" opertions
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	363 static int
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	364 cs8900a_control(struct eth_drv_sc sc, unsigned long key, void data, int data_length)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	365 {
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	366 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	367 cyg_addrword_t base = cpd->base;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	368 struct eth_drv_mc_list *mc_list = data;
1971 915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	369 unsigned char esa = (unsigned char )data;
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	370 int i;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	371
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	372 switch (key) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	373 case ETH_DRV_SET_MAC_ADDRESS:
1971 915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	374 #if 9 & DEBUG
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	375 diag_printf("CS8900A - set ESA: %02x:%02x:%02x:%02x:%02x:%02x\n",
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	376 esa[0], esa[1], esa[2],
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	377 esa[3], esa[4], esa[5] );
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	378 #if !defined(CYGSEM_DEVS_ETH_CL_CS8900A_WRITE_EEPROM) \|\| !defined(CS8900A_PROGRAM_EEPROM)
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	379 diag_printf("* PERMANENT EEPROM WRITE NOT ENABLED *\n");
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	380 #endif
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	381 #endif // DEBUG
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	382
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	383 // We can write the MAC address into the interface info,
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	384 // and the chip registers no problem.
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	385 for ( i = 0; i < sizeof(cpd->esa); i++ )
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	386 cpd->esa[i] = esa[i];
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	387 for (i = 0; i < sizeof(cpd->esa); i += 2) {
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	388 cyg_uint16 reg = cpd->esa[i] \| (cpd->esa[i+1] << 8);
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	389 put_reg(cpd->base, PP_IA+i, reg );
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	390 }
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	391 #if defined(CYGSEM_DEVS_ETH_CL_CS8900A_WRITE_EEPROM) && defined(CS8900A_PROGRAM_EEPROM)
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	392 if (CS8900A_PROGRAM_EEPROM(cpd))
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	393 return 1;
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	394 else
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	395 return 0;
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	396 #elif defined(CYGSEM_DEVS_ETH_CL_CS8900A_WRITE_EEPROM) && !defined(CS8900A_PROGRAM_EEPROM)
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	397 /* WRITE_EEPROM requested, but no PROGRAM_EEPROM provided */
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	398 return 1;
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	399 #else /* !CYGSEM_DEVS_ETH_CL_CS8900A_WRITE_EEPROM - No need to write EEPROM */
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	400 return 0;
1971 915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	401 #endif
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	402
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	403 #ifdef ETH_DRV_GET_MAC_ADDRESS
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	404 case ETH_DRV_GET_MAC_ADDRESS:
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	405 // Extract the MAC address that is in the chip, and tell the
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	406 // system about it.
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	407 for (i = 0; i < sizeof(cpd->esa); i += 2) {
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	408 unsigned short z = get_reg(cpd->base, PP_IA+i/2 );
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	409 esa[i] = (unsigned char)(0xff & z);
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	410 esa[i+1] = (unsigned char)(0xff & (z >> 8));
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	411 }
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	412 return 0;
915ac9ca447f * cdl/cl_cs8900a_eth_drivers.cdl: Added asl parents: 1681 diff changeset	413 #endif
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	414 case ETH_DRV_SET_MC_LIST:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	415 case ETH_DRV_SET_MC_ALL:
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	416 // Note: this code always accepts all multicast addresses if any
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	417 // are desired. It would be possible to accept a subset by adjusting
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	418 // the Logical Address Filter (LAF), but that would require scanning
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	419 // this list and building a suitable mask.
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	420 if (mc_list->len) {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	421 cpd->rxmode \|= PP_RxCTL_Multicast;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	422 } else {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	423 cpd->rxmode &= ~PP_RxCTL_Multicast;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	424 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	425 put_reg(base, PP_RxCTL, cpd->rxmode); // When is it safe to do this?
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	426 return 0;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	427 default:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	428 return 1;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	429 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	430 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	431 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	432
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	433 // This routine is called to see if it is possible to send another packet.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	434 // It will return non-zero if a transmit is possible, zero otherwise.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	435 static int
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	436 cs8900a_can_send(struct eth_drv_sc *sc)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	437 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	438 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	439 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	440 cyg_uint16 stat;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	441
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	442 stat = get_reg(base, PP_LineStat);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	443 if ((stat & PP_LineStat_LinkOK) == 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	444 return false; // Link not connected
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	445 }
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	446 #ifdef CYGPKG_KERNEL
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	447 // Horrible hack!
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	448 if (cpd->txbusy) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	449 cyg_tick_count_t now = cyg_current_time();
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	450 if ((now - cpd->txstart) > 25) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	451 // 250ms is more than enough to transmit one frame
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	452 #if DEBUG & 1
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	453 diag_printf("CS8900: Tx interrupt lost\n");
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	454 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	455 cpd->txbusy = false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	456 // Free up the buffer (with error indication)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	457 (sc->funs->eth_drv->tx_done)(sc, cpd->txkey, 1);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	458 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	459 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	460 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	461 return (cpd->txbusy == false);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	462 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	463
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	464 // This routine is called to send data to the hardware.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	465 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	466 cs8900a_send(struct eth_drv_sc sc, struct eth_drv_sg sg_list, int sg_len,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	467 int total_len, unsigned long key)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	468 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	469 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	470 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	471 int i;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	472 int len;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	473 cyg_uint8 *data;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	474 cyg_uint16 saved_data = 0, *sdata;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	475 cyg_uint16 stat;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	476 bool odd_byte = false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	477
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	478 // Mark xmitter busy
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	479 cpd->txbusy = true;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	480 cpd->txkey = key;
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	481 #ifdef CYGPKG_KERNEL
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	482 cpd->txstart = cyg_current_time();
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	483 #endif
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	484
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	485 // Start the xmit sequence
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	486 #ifdef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	487 total_len = CYG_SWAP16(total_len);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	488 #endif
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	489
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	490 // The hardware indicates that there are options as to when the actual
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	491 // packet transmission will start wrt moving of data into the transmit
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	492 // buffer. However, impirical results seem to indicate that if the
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	493 // packet is large and transmission is allowed to start before the
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	494 // entire packet has been pushed into the buffer, the hardware gets
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	495 // confused and the packet is lost, along with a "lost" Tx interrupt.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	496 // This may be a case of the copy loop below being interrupted, e.g.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	497 // a system timer interrupt, and the hardware getting unhappy that
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	498 // not all of the data was provided before the transmission should
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	499 // have completed (i.e. buffer underrun).
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	500 // For now, the solution is to not allow this overlap.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	501 //HAL_WRITE_UINT16(cpd->base+CS8900A_TxCMD, PP_TxCmd_TxStart_5)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	502
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	503 // Start only when all data sent to chip
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	504 HAL_WRITE_UINT16(cpd->base+CS8900A_TxCMD, PP_TxCmd_TxStart_Full);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	505
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	506 HAL_WRITE_UINT16(cpd->base+CS8900A_TxLEN, total_len);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	507 // Wait for controller ready signal
2428 c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	508 {
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	509 // add timeout per cs8900a bugzilla report 1000281 */
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	510 int timeout = 1000;
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	511
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	512 do {
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	513 stat = get_reg(base, PP_BusStat);
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	514 #if DEBUG & 1
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	515 if( stat & PP_BusStat_TxBid )
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	516 diag_printf( "cs8900a_send: Bid error!\n" );
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	517 #endif
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	518 } while (!(stat & PP_BusStat_TxRDY) && --timeout);
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	519
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	520 if( !timeout ) {
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	521 // we might as well just return, since if we write the data it will
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	522 // just get thrown away
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	523 return;
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	524 }
c4195ff791d2 * add timeout to potential infinite loop in cs8900a_send per asl parents: 2107 diff changeset	525 }
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	526
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	527 // Put data into buffer
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	528 for (i = 0; i < sg_len; i++) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	529 data = (cyg_uint8 *)sg_list[i].buf;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	530 len = sg_list[i].len;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	531
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	532 if (len > 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	533 /* Finish the last word. */
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	534 if (odd_byte) {
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	535 // This new byte must get on the bus _after_ the last saved odd byte, it therefore
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	536 // belongs in the MSB of the CS8900a
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	537 #ifdef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	538 saved_data \|= *data++;
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	539 #else
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	540 saved_data \|= ((cyg_uint16)*data++) << 8;
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	541 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	542 HAL_WRITE_UINT16(cpd->base+CS8900A_RTDATA, saved_data);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	543 len--;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	544 odd_byte = false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	545 }
1397 9c818dd5d9fa Updates for EC555 targets - from Bob Koninckx gthomas parents: 941 diff changeset	546 if (((CYG_ADDRESS)data & 0x1) == 0) {
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	547 /* Aligned on 16-bit boundary, so output contiguous words. */
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	548 sdata = (cyg_uint16 *)data;
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	549 while (len > 1) {
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	550 // Make sure data get on the bus in Big Endian format
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	551 #if((CYG_BYTEORDER == CYG_MSBFIRST) && defined(CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED) \|\| \
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	552 (CYG_BYTEORDER == CYG_LSBFIRST) && !defined(CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED ))
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	553 HAL_WRITE_UINT16(cpd->base+CS8900A_RTDATA, *sdata++);
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	554 #else
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	555 HAL_WRITE_UINT16(cpd->base+CS8900A_RTDATA, CYG_SWAP16(*sdata++));
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	556 #endif
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	557 len -= sizeof(cyg_uint16);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	558 }
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	559 data = (cyg_uint8 *)sdata;
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	560 } else {
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	561 /* Not 16-bit aligned, so byte copy */
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	562 while (len > 1) {
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	563 saved_data = (cyg_uint16)*data++; // reuse saved_data
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	564 // Make sure data get on the bus in Big Endian format, the first byte belongs in the
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	565 // LSB of the CS8900A
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	566 #ifdef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	567 saved_data = ((cyg_uint16)*data++) \| (saved_data << 8);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	568 #else
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	569 saved_data \|= ((cyg_uint16)*data++) << 8;
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	570 #endif
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	571 HAL_WRITE_UINT16(cpd->base+CS8900A_RTDATA, saved_data);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	572 len -= sizeof(cyg_uint16);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	573 }
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	574 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	575 /* Save last byte, if necessary. */
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	576 if (len == 1) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	577 saved_data = (cyg_uint16)*data;
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	578 // This _last_ byte must get on the bus _first_, it therefore belongs in the LSB of
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	579 // the CS8900a
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	580 #ifdef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
1397 9c818dd5d9fa Updates for EC555 targets - from Bob Koninckx gthomas parents: 941 diff changeset	581 saved_data = (saved_data << 8);
9c818dd5d9fa Updates for EC555 targets - from Bob Koninckx gthomas parents: 941 diff changeset	582 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	583 odd_byte = true;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	584 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	585 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	586 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	587 if (odd_byte) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	588 HAL_WRITE_UINT16(cpd->base+CS8900A_RTDATA, saved_data);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	589 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	590 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	591
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	592 // This function is called when a packet has been received. It's job is
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	593 // to prepare to unload the packet from the hardware. Once the length of
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	594 // the packet is known, the upper layer of the driver can be told. When
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	595 // the upper layer is ready to unload the packet, the internal function
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	596 // 'cs8900a_recv' will be called to actually fetch it from the hardware.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	597 static void
1659 e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	598 cs8900a_RxEvent(struct eth_drv_sc *sc, int stat)
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	599 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	600 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	601 cyg_addrword_t base = cpd->base;
1659 e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	602 cyg_uint16 len;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	603
1659 e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	604 if(stat & PP_RxCFG_RxOK) {
e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	605 // Only start reading a message if one has been received
e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	606 HAL_READ_UINT16(base+CS8900A_RTDATA, stat);
e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	607 HAL_READ_UINT16(base+CS8900A_RTDATA, len);
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	608
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	609 #ifdef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
1659 e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	610 len = CYG_SWAP16(len);
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	611 #endif
1659 e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	612
e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	613 CYG_ASSERT(len > 0, "Zero length ethernet frame received");
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	614
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	615 #ifdef CYGDBG_IO_ETH_DRIVERS_DEBUG
1659 e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	616 if (cyg_io_eth_net_debug) {
e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	617 diag_printf("RxEvent - stat: %x, len: %d\n", stat, len);
e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	618 }
e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	619 #endif
e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	620 (sc->funs->eth_drv->recv)(sc, len);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	621 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	622 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	623
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	624 // This function is called as a result of the "eth_drv_recv()" call above.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	625 // It's job is to actually fetch data for a packet from the hardware once
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	626 // memory buffers have been allocated for the packet. Note that the buffers
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	627 // may come in pieces, using a scatter-gather list. This allows for more
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	628 // efficient processing in the upper layers of the stack.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	629 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	630 cs8900a_recv(struct eth_drv_sc sc, struct eth_drv_sg sg_list, int sg_len)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	631 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	632 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	633 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	634 int i, mlen;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	635 cyg_uint16 *data, val;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	636 cyg_uint8 *cp, cval;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	637
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	638 for (i = 0; i < sg_len; i++) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	639 data = (cyg_uint16 *)sg_list[i].buf;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	640 mlen = sg_list[i].len;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	641 while (mlen >= sizeof(*data)) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	642 HAL_READ_UINT16(base+CS8900A_RTDATA, val);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	643 if (data) {
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	644 #if((CYG_BYTEORDER == CYG_MSBFIRST) && defined(CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED) \|\| \
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	645 (CYG_BYTEORDER == CYG_LSBFIRST) && !defined(CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED ))
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	646 *data++ = val;
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	647 #else
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	648 *data++ = CYG_SWAP16(val);
bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	649 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	650 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	651 mlen -= sizeof(*data);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	652 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	653 if (mlen) {
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	654 HAL_READ_UINT16(base+CS8900A_RTDATA, val);
1599 bf994e1a516c Big/Little endian changes from Bob Koninckx gthomas parents: 1397 diff changeset	655 #ifndef CYGIMP_DEVS_ETH_CL_CS8900A_DATABUS_BYTE_SWAPPED
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	656 // last odd byte will be in the LSB
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	657 cval = (cyg_uint8)(val);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	658 #elif(CYG_BYTEORDER == CYG_MSBFIRST)
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	659 // last odd byte will be in the MSB
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	660 cval = (cyg_uint8)(val >> 8);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	661 #endif
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	662 cval &= 0xff;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	663 if ((cp = (cyg_uint8 *)data) != 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	664 *cp = cval;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	665 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	666 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	667 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	668 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	669
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	670 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	671 cs8900a_TxEvent(struct eth_drv_sc *sc, int stat)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	672 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	673 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	674 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	675
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	676 stat = get_reg(base, PP_TER);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	677 #ifdef CYGDBG_IO_ETH_DRIVERS_DEBUG
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	678 if (cyg_io_eth_net_debug) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	679 diag_printf("Tx event: %x\n", stat);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	680 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	681 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	682 cpd->txbusy = false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	683 (sc->funs->eth_drv->tx_done)(sc, cpd->txkey, 0);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	684 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	685
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	686 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	687 cs8900a_BufEvent(struct eth_drv_sc *sc, int stat)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	688 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	689 if (stat & PP_BufCFG_RxMiss) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	690 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	691 if (stat & PP_BufCFG_TxUE) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	692 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	693 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	694
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	695 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	696 cs8900a_poll(struct eth_drv_sc *sc)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	697 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	698 cyg_uint16 event;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	699 cs8900a_priv_data_t cpd = (cs8900a_priv_data_t )sc->driver_private;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	700 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	701
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	702 HAL_READ_UINT16(base+CS8900A_ISQ, event);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	703 while (event != 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	704 switch (event & ISQ_EventMask) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	705 case ISQ_RxEvent:
1659 e2264d5f9337 * src/if_cs8900a.c: Drop "ghost" frames with zero length jlarmour parents: 1599 diff changeset	706 cs8900a_RxEvent(sc, event);
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	707 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	708 case ISQ_TxEvent:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	709 cs8900a_TxEvent(sc, event);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	710 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	711 case ISQ_BufEvent:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	712 cs8900a_BufEvent(sc, event);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	713 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	714 case ISQ_RxMissEvent:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	715 // Receive miss counter has overflowed
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	716 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	717 case ISQ_TxColEvent:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	718 // Transmit collision counter has overflowed
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	719 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	720 default:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	721 #if DEBUG & 1
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	722 diag_printf("%s: Unknown event: %x\n", __FUNCTION__, event);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	723 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	724 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	725 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	726 HAL_READ_UINT16(base+CS8900A_ISQ, event);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	727 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	728
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	729 CYGHWR_CL_CS8900A_PLF_INT_CLEAR(cpd);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	730 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	731
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	732 #ifdef CYGSEM_DEVS_ETH_CL_CS8900A_NOINTS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	733 void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	734 cs8900a_fake_int(cyg_addrword_t param)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	735 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	736 struct eth_drv_sc sc = (struct eth_drv_sc ) param;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	737 int s;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	738
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	739 #if DEBUG & 1
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	740 diag_printf("cs8900a_fake_int()\n");
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	741 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	742
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	743 while (true) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	744 cyg_thread_delay(5);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	745 s = splnet();
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	746 cs8900a_poll(sc);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	747 splx(s);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	748 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	749 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	750 #endif

Mercurial > ecos

annotate packages/devs/eth/cl/cs8900a/current/src/if_cs8900a.c @ 2428:c4195ff791d2