flash_v2: packages/devs/eth/cl/cs8900a/current/src/if

annotate packages/devs/eth/cl/cs8900a/current/src/if_cs8900a.c @ 941:01d8c3c977d9

* src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit aligned. Thanks to Laurent Gonzalez <laurent.gonzalez@ri.silicomp.fr> for reporting this and his initial patch. * src/if_cs8900a.c: * include/cs8900a.h: Changes to support both little and big endian targets

author	jlarmour
date	Sat, 12 Apr 2003 03:50:18 +0000
parents	ae8511176102
children	9c818dd5d9fa

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>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	76 #include <cyg/hal/hal_arch.h>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	77 #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	78 #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	79 #include <cyg/infra/diag.h>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	80 #include <cyg/hal/drv_api.h>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	81 #undef __ECOS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	82 #define __ECOS
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	83 #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	84 #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	85
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	86 #include <cyg/io/cs8900.h>
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	87
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	88 #define __WANT_DEVS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	89 #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	90 #undef __WANT_DEVS
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	91
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	92 // 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	93 #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	94 # 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	95 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	96
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	97 #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	98 #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	99 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	100 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	101 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	102 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	103 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	104
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	105 #ifdef CYGDBG_IO_ETH_DRIVERS_DEBUG
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	106 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	107 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	108
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	109 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	110 #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	111 // 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	112 static int
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	113 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	114 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	115 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	116 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	117 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	118 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	119 }
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 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	122 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	123 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	124 // 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	125 // 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	126 // usage ie. in RedBoot.
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	127 #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	128 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	129 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	130 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	131
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	132 DEBUG_FUNCTION();
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	133
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	134 // 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	135 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	136 #else
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	137 # ifndef CYGPKG_REDBOOT
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	138 # 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	139 # endif
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 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	142 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	143
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	144 // 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	145 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	146 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	147 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	148 cs8900a_poll(sc);
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	149 #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	150 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	151 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	152 // Allow interrupts to happen again
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	153 cyg_drv_interrupt_unmask(cpd->interrupt);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	154 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	155 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	156 }
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 static int
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	159 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	160 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	161 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	162 return (cpd->interrupt) ? 1 : 0;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	163 }
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 static bool
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	166 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	167 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	168 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	169 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	170 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	171 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	172 cyg_uint16 i;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	173 long timeout = 500000;
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	174 cyg_bool esa_configured = false;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	175
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	176 cpd->tab = tab;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	177
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	178 CYGHWR_CL_CS8900A_PLF_INIT(cpd);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	179
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	180 #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	181 // Initialize environment, setup interrupt handler
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	182 cyg_drv_interrupt_create(cpd->interrupt,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	183 0, // Priority - what goes here?
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	184 (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	185 (cyg_ISR_t *)cs8900a_isr,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	186 (cyg_DSR_t *)cs8900a_dsr,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	187 &cpd->interrupt_handle,
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	188 &cpd->interrupt_object);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	189 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	190 cyg_drv_interrupt_acknowledge(cpd->interrupt);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	191 cyg_drv_interrupt_unmask(cpd->interrupt);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	192
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	193 #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	194 cyg_thread_create(1, // Priority
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	195 cs8900a_fake_int, // entry
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	196 (cyg_addrword_t)sc, // entry parameter
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	197 "CS8900 int", // Name
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	198 &cs8900a_fake_int_stack[0], // Stack
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	199 STACK_SIZE, // Size
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	200 &cs8900a_fake_int_thread_handle, // Handle
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	201 &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	202 );
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	203 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	204 #endif
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
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	207 // 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	208 // 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	209 // MSB 8 bits.
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	210 get_reg(base, PP_ChipID);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	211 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	212 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	213 #if DEBUG & 8
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	214 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	215 #endif
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	216 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	217 #if DEBUG & 8
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	218 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	219 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	220 return false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	221 }
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 CYGHWR_CL_CS8900A_PLF_RESET(base);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	224 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	225
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	226 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	227
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	228 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	229 if (--timeout <= 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	230 #if DEBUG & 8
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	231 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	232 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	233 return false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	234 }
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 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	238 #if DEBUG & 8
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	239 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	240 chip_status & PP_SelfStat_EEPROM ? "" : "no ");
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	241 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	242
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 // Disable reception whilst finding the ESA
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	245 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	246 // 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	247 // one provides the ESA:
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	248 // RedBoot option (via provide_esa)
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	249 // Compile-time configuration
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	250 // EEPROM
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	251 // <fail configuration of device>
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	252 if (NULL != cpd->provide_esa) {
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	253 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	254 # if DEBUG & 8
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	255 if (esa_configured)
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	256 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	257 # endif
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	258 }
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	259 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	260 // ESA is already set in cpd->esa[]
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	261 esa_configured = true;
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	262 }
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	263 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	264 // 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	265 cyg_uint16 esa_word;
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	266 for (i = 0; i < sizeof(cpd->esa); i += 2) {
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	267 #if(CYG_BYTEORDER == CYG_LSBFIRST)
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	268 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	269 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	270 cpd->esa[i+1] = (esa_word >> 8) & 0xFF;
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	271 #elif(CYG_BYTEORDER == CYG_MSBFIRST)
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	272 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	273 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	274 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	275 #else
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	276 # error You must define CYG_BYTEORDER to equal CYG_LSBFIRST or CYG_MSBFIRST
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	277 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	278 }
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	279 esa_configured = true;
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	280 }
51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	281 if (!esa_configured) {
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	282 # if DEBUG & 8
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	283 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	284 # endif
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	285 return false;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	286 }
197 51b34619b677 Merge from eCos master repository on 2001-11-30-11:22:06-GMT jlarmour parents: 196 diff changeset	287
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	288 // 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	289 for (i = 0; i < sizeof(cpd->esa); i += 2) {
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	290 #if(CYG_BYTEORDER == CYG_LSBFIRST)
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	291 put_reg(base, PP_IA+i, cpd->esa[i] \| (cpd->esa[i+1] << 8));
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	292 #elif(CYG_BYTEORDER == CYG_MSBFIRST)
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	293 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	294 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	295 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	296 // Set logical address mask
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	297 for (i = 0; i < 8; i += 2) {
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	298 #if(CYG_BYTEORDER == CYG_LSBFIRST)
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	299 put_reg(base, PP_LAF+i, 0xFFFF);
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	300 #elif(CYG_BYTEORDER == CYG_MSBFIRST)
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	301 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	302 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	303 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	304 # if DEBUG & 8
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	305 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	306 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	307 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	308 # endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	309
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	310 // Initialize upper level driver
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	311 (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	312
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	313 return true;
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
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	316 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	317 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	318 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	319 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	320 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	321
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	322 put_reg(base, PP_LineCTL, 0);
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
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	325 // 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	326 // 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	327 // 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	328 // 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	329 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	330 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	331 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	332 cyg_uint16 stat;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	333 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	334 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	335
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	336 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	337 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	338 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	339 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	340 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	341 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	342 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	343 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	344 PP_TxCFG_Jabber \| PP_TxCFG_16Collisions);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	345 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	346 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	347 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	348 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	349 // 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	350 do {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	351 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	352 } while (stat != 0) ;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	353 cpd->txbusy = false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	354 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	355 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	356
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	357 // 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	358 static int
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	359 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	360 {
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	361 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	362 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	363 struct eth_drv_mc_list *mc_list = data;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	364
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	365 switch (key) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	366 case ETH_DRV_SET_MAC_ADDRESS:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	367 return 0;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	368 break;
208 e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	369 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	370 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	371 // 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	372 // 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	373 // 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	374 // 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	375 if (mc_list->len) {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	376 cpd->rxmode \|= PP_RxCTL_Multicast;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	377 } else {
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	378 cpd->rxmode &= ~PP_RxCTL_Multicast;
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	379 }
e0c0827131d1 Merge from eCos master repository on 2002-05-20-20:11:54-BST jlarmour parents: 197 diff changeset	380 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	381 return 0;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	382 default:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	383 return 1;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	384 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	385 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	386 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	387
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	388 // 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	389 // 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	390 static int
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	391 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	392 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	393 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	394 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	395 cyg_uint16 stat;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	396
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	397 stat = get_reg(base, PP_LineStat);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	398 if ((stat & PP_LineStat_LinkOK) == 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	399 return false; // Link not connected
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	400 }
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	401 #ifdef CYGPKG_KERNEL
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	402 // Horrible hack!
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	403 if (cpd->txbusy) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	404 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	405 if ((now - cpd->txstart) > 25) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	406 // 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	407 #if DEBUG & 1
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	408 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	409 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	410 cpd->txbusy = false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	411 // 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	412 (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	413 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	414 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	415 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	416 return (cpd->txbusy == false);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	417 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	418
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	419 // 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	420 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	421 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	422 int total_len, unsigned long key)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	423 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	424 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	425 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	426 int i;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	427 int len;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	428 cyg_uint8 *data;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	429 cyg_uint16 saved_data = 0, *sdata;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	430 cyg_uint16 stat;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	431 bool odd_byte = false;
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 // Mark xmitter busy
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	434 cpd->txbusy = true;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	435 cpd->txkey = key;
212 94b558c9fb67 Merge from eCos master repository on 2002-05-31-00:05:29-BST jlarmour parents: 210 diff changeset	436 #ifdef CYGPKG_KERNEL
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	437 cpd->txstart = cyg_current_time();
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	438 #endif
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	439
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	440 // Start the xmit sequence
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	441 #if(CYG_BYTEORDER == CYG_MSBFIRST)
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	442 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	443 #endif
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	444
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	445 // 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	446 // 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	447 // 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	448 // 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	449 // 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	450 // 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	451 // 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	452 // 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	453 // 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	454 // have completed (i.e. buffer underrun).
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	455 // 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	456 //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	457
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	458 // 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	459 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	460
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	461 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	462 // Wait for controller ready signal
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	463 do {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	464 stat = get_reg(base, PP_BusStat);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	465 } while (!(stat & PP_BusStat_TxRDY));
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	466
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	467 // Put data into buffer
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	468 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	469 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	470 len = sg_list[i].len;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	471
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	472 if (len > 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	473 /* Finish the last word. */
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	474 if (odd_byte) {
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	475 // Add data to the most significant byte
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	476 #if(CYG_BYTEORDER == CYG_LSBFIRST)
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	477 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	478 #elif(CYG_BYTEORDER == CYG_MSBFIRST)
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	479 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	480 #endif
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	481 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	482 len--;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	483 odd_byte = false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	484 }
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	485 if ((CYG_ADDRESS)data & 0x1 == 0) {
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	486 /* 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	487 sdata = (cyg_uint16 *)data;
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	488 while (len > 1) {
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	489 HAL_WRITE_UINT16(cpd->base+CS8900A_RTDATA, *sdata++);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	490 len -= sizeof(cyg_uint16);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	491 }
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	492 data = (cyg_uint8 *)sdata;
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	493 } else {
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	494 /* 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	495 while (len > 1) {
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	496 saved_data = (cyg_uint16)*data++; // reuse saved_data
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	497 #if CYG_BYTEORDER == CYG_MSBFIRST
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	498 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	499 #else
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	500 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	501 #endif
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	502 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	503 len -= sizeof(cyg_uint16);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	504 }
196 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 /* Save last byte, if necessary. */
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	507 if (len == 1) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	508 saved_data = (cyg_uint16)*data;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	509 odd_byte = true;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	510 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	511 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	512 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	513 if (odd_byte) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	514 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	515 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	516 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	517
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	518 // 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	519 // 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	520 // 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	521 // 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	522 // '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	523 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	524 cs8900a_RxEvent(struct eth_drv_sc *sc)
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	525 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	526 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	527 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	528 cyg_uint16 stat, len;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	529
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	530 HAL_READ_UINT16(base+CS8900A_RTDATA, stat);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	531 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	532
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	533 #if(CYG_BYTEORDER == CYG_MSBFIRST)
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	534 len = CYG_SWAP16(len);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	535 #endif
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	536
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	537 #ifdef CYGDBG_IO_ETH_DRIVERS_DEBUG
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	538 if (cyg_io_eth_net_debug) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	539 diag_printf("RxEvent - stat: %x, len: %d\n", stat, len);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	540 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	541 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	542 (sc->funs->eth_drv->recv)(sc, len);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	543 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	544
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	545 // 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	546 // 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	547 // 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	548 // 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	549 // 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	550 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	551 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	552 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	553 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	554 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	555 int i, mlen;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	556 cyg_uint16 *data, val;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	557 cyg_uint8 *cp, cval;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	558
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	559 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	560 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	561 mlen = sg_list[i].len;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	562 while (mlen >= sizeof(*data)) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	563 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	564 if (data) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	565 *data++ = val;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	566 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	567 mlen -= sizeof(*data);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	568 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	569 if (mlen) {
941 01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	570 HAL_READ_UINT16(base+CS8900A_RTDATA, val);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	571 #if(CYG_BYTEORDER == CYG_LSBFIRST)
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	572 // 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	573 cval = (cyg_uint8)(val);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	574 #elif(CYG_BYTEORDER == CYG_MSBFIRST)
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	575 // 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	576 cval = (cyg_uint8)(val >> 8);
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	577 #endif
01d8c3c977d9 * src/if_cs8900a.c (cs8900a_send): Allow for data not being 16-bit jlarmour parents: 219 diff changeset	578 cval &= 0xff;
196 9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	579 if ((cp = (cyg_uint8 *)data) != 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	580 *cp = cval;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	581 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	582 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	583 }
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 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	587 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	588 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	589 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	590 cyg_addrword_t base = cpd->base;
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 stat = get_reg(base, PP_TER);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	593 #ifdef CYGDBG_IO_ETH_DRIVERS_DEBUG
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	594 if (cyg_io_eth_net_debug) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	595 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	596 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	597 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	598 cpd->txbusy = false;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	599 (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	600 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	601
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	602 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	603 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	604 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	605 if (stat & PP_BufCFG_RxMiss) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	606 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	607 if (stat & PP_BufCFG_TxUE) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	608 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	609 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	610
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	611 static void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	612 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	613 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	614 cyg_uint16 event;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	615 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	616 cyg_addrword_t base = cpd->base;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	617
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	618 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	619 while (event != 0) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	620 switch (event & ISQ_EventMask) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	621 case ISQ_RxEvent:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	622 cs8900a_RxEvent(sc);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	623 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	624 case ISQ_TxEvent:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	625 cs8900a_TxEvent(sc, event);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	626 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	627 case ISQ_BufEvent:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	628 cs8900a_BufEvent(sc, event);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	629 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	630 case ISQ_RxMissEvent:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	631 // Receive miss counter has overflowed
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	632 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	633 case ISQ_TxColEvent:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	634 // Transmit collision counter has overflowed
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	635 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	636 default:
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	637 #if DEBUG & 1
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	638 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	639 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	640 break;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	641 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	642 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	643 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	644
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	645 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	646 }
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	647
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	648 #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	649 void
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	650 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	651 {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	652 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	653 int s;
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	654
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	655 #if DEBUG & 1
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	656 diag_printf("cs8900a_fake_int()\n");
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	657 #endif
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	658
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	659 while (true) {
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	660 cyg_thread_delay(5);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	661 s = splnet();
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	662 cs8900a_poll(sc);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	663 splx(s);
9b55e9c69693 Merge from eCos master repository on 2001-11-23-15:32:03-GMT jlarmour parents: diff changeset	664 }
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 #endif

Mercurial > flash_v2

annotate packages/devs/eth/cl/cs8900a/current/src/if_cs8900a.c @ 941:01d8c3c977d9