578 lines
12 KiB
C
578 lines
12 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/******************************************************************************
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*
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* (C)Copyright 1998,1999 SysKonnect,
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* a business unit of Schneider & Koch & Co. Datensysteme GmbH.
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*
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* See the file "skfddi.c" for further information.
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*
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* The information in this file is provided "AS IS" without warranty.
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*
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******************************************************************************/
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/*
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* FBI board dependent Driver for SMT and LLC
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*/
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#include "h/types.h"
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#include "h/fddi.h"
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#include "h/smc.h"
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#include "h/supern_2.h"
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#include "h/skfbiinc.h"
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#include <linux/bitrev.h>
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#include <linux/pci.h>
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/*
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* PCM active state
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*/
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#define PC8_ACTIVE 8
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#define LED_Y_ON 0x11 /* Used for ring up/down indication */
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#define LED_Y_OFF 0x10
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#define MS2BCLK(x) ((x)*12500L)
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/*
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* valid configuration values are:
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*/
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/*
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* xPOS_ID:xxxx
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* | \ /
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* | \/
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* | --------------------- the patched POS_ID of the Adapter
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* | xxxx = (Vendor ID low byte,
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* | Vendor ID high byte,
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* | Device ID low byte,
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* | Device ID high byte)
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* +------------------------------ the patched oem_id must be
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* 'S' for SK or 'I' for IBM
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* this is a short id for the driver.
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*/
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#ifndef MULT_OEM
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#ifndef OEM_CONCEPT
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const u_char oem_id[] = "xPOS_ID:xxxx" ;
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#else /* OEM_CONCEPT */
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const u_char oem_id[] = OEM_ID ;
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#endif /* OEM_CONCEPT */
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#define ID_BYTE0 8
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#define OEMID(smc,i) oem_id[ID_BYTE0 + i]
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#else /* MULT_OEM */
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const struct s_oem_ids oem_ids[] = {
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#include "oemids.h"
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{0}
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};
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#define OEMID(smc,i) smc->hw.oem_id->oi_id[i]
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#endif /* MULT_OEM */
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/* Prototypes of external functions */
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#ifdef AIX
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extern int AIX_vpdReadByte() ;
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#endif
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/* Prototype of a local function. */
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static void smt_stop_watchdog(struct s_smc *smc);
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/*
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* FDDI card reset
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*/
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static void card_start(struct s_smc *smc)
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{
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int i ;
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#ifdef PCI
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u_char rev_id ;
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u_short word;
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#endif
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smt_stop_watchdog(smc) ;
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#ifdef PCI
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/*
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* make sure no transfer activity is pending
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*/
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outpw(FM_A(FM_MDREG1),FM_MINIT) ;
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outp(ADDR(B0_CTRL), CTRL_HPI_SET) ;
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hwt_wait_time(smc,hwt_quick_read(smc),MS2BCLK(10)) ;
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/*
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* now reset everything
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*/
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outp(ADDR(B0_CTRL),CTRL_RST_SET) ; /* reset for all chips */
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i = (int) inp(ADDR(B0_CTRL)) ; /* do dummy read */
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SK_UNUSED(i) ; /* Make LINT happy. */
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outp(ADDR(B0_CTRL), CTRL_RST_CLR) ;
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/*
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* Reset all bits in the PCI STATUS register
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*/
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outp(ADDR(B0_TST_CTRL), TST_CFG_WRITE_ON) ; /* enable for writes */
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word = inpw(PCI_C(PCI_STATUS)) ;
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outpw(PCI_C(PCI_STATUS), word | PCI_STATUS_ERROR_BITS);
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outp(ADDR(B0_TST_CTRL), TST_CFG_WRITE_OFF) ; /* disable writes */
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/*
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* Release the reset of all the State machines
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* Release Master_Reset
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* Release HPI_SM_Reset
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*/
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outp(ADDR(B0_CTRL), CTRL_MRST_CLR|CTRL_HPI_CLR) ;
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/*
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* determine the adapter type
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* Note: Do it here, because some drivers may call card_start() once
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* at very first before any other initialization functions is
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* executed.
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*/
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rev_id = inp(PCI_C(PCI_REVISION_ID)) ;
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if ((rev_id & 0xf0) == SK_ML_ID_1 || (rev_id & 0xf0) == SK_ML_ID_2) {
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smc->hw.hw_is_64bit = TRUE ;
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} else {
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smc->hw.hw_is_64bit = FALSE ;
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}
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/*
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* Watermark initialization
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*/
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if (!smc->hw.hw_is_64bit) {
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outpd(ADDR(B4_R1_F), RX_WATERMARK) ;
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outpd(ADDR(B5_XA_F), TX_WATERMARK) ;
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outpd(ADDR(B5_XS_F), TX_WATERMARK) ;
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}
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outp(ADDR(B0_CTRL),CTRL_RST_CLR) ; /* clear the reset chips */
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outp(ADDR(B0_LED),LED_GA_OFF|LED_MY_ON|LED_GB_OFF) ; /* ye LED on */
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/* init the timer value for the watch dog 2,5 minutes */
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outpd(ADDR(B2_WDOG_INI),0x6FC23AC0) ;
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/* initialize the ISR mask */
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smc->hw.is_imask = ISR_MASK ;
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smc->hw.hw_state = STOPPED ;
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#endif
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GET_PAGE(0) ; /* necessary for BOOT */
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}
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void card_stop(struct s_smc *smc)
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{
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smt_stop_watchdog(smc) ;
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smc->hw.mac_ring_is_up = 0 ; /* ring down */
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#ifdef PCI
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/*
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* make sure no transfer activity is pending
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*/
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outpw(FM_A(FM_MDREG1),FM_MINIT) ;
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outp(ADDR(B0_CTRL), CTRL_HPI_SET) ;
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hwt_wait_time(smc,hwt_quick_read(smc),MS2BCLK(10)) ;
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/*
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* now reset everything
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*/
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outp(ADDR(B0_CTRL),CTRL_RST_SET) ; /* reset for all chips */
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outp(ADDR(B0_CTRL),CTRL_RST_CLR) ; /* reset for all chips */
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outp(ADDR(B0_LED),LED_GA_OFF|LED_MY_OFF|LED_GB_OFF) ; /* all LEDs off */
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smc->hw.hw_state = STOPPED ;
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#endif
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}
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/*--------------------------- ISR handling ----------------------------------*/
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void mac1_irq(struct s_smc *smc, u_short stu, u_short stl)
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{
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int restart_tx = 0 ;
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again:
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/*
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* parity error: note encoding error is not possible in tag mode
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*/
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if (stl & (FM_SPCEPDS | /* parity err. syn.q.*/
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FM_SPCEPDA0 | /* parity err. a.q.0 */
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FM_SPCEPDA1)) { /* parity err. a.q.1 */
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SMT_PANIC(smc,SMT_E0134, SMT_E0134_MSG) ;
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}
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/*
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* buffer underrun: can only occur if a tx threshold is specified
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*/
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if (stl & (FM_STBURS | /* tx buffer underrun syn.q.*/
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FM_STBURA0 | /* tx buffer underrun a.q.0 */
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FM_STBURA1)) { /* tx buffer underrun a.q.2 */
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SMT_PANIC(smc,SMT_E0133, SMT_E0133_MSG) ;
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}
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if ( (stu & (FM_SXMTABT | /* transmit abort */
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FM_STXABRS | /* syn. tx abort */
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FM_STXABRA0)) || /* asyn. tx abort */
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(stl & (FM_SQLCKS | /* lock for syn. q. */
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FM_SQLCKA0)) ) { /* lock for asyn. q. */
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formac_tx_restart(smc) ; /* init tx */
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restart_tx = 1 ;
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stu = inpw(FM_A(FM_ST1U)) ;
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stl = inpw(FM_A(FM_ST1L)) ;
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stu &= ~ (FM_STECFRMA0 | FM_STEFRMA0 | FM_STEFRMS) ;
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if (stu || stl)
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goto again ;
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}
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if (stu & (FM_STEFRMA0 | /* end of asyn tx */
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FM_STEFRMS)) { /* end of sync tx */
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restart_tx = 1 ;
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}
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if (restart_tx)
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llc_restart_tx(smc) ;
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}
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/*
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* interrupt source= plc1
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* this function is called in nwfbisr.asm
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*/
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void plc1_irq(struct s_smc *smc)
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{
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u_short st = inpw(PLC(PB,PL_INTR_EVENT)) ;
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plc_irq(smc,PB,st) ;
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}
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/*
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* interrupt source= plc2
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* this function is called in nwfbisr.asm
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*/
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void plc2_irq(struct s_smc *smc)
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{
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u_short st = inpw(PLC(PA,PL_INTR_EVENT)) ;
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plc_irq(smc,PA,st) ;
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}
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/*
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* interrupt source= timer
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*/
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void timer_irq(struct s_smc *smc)
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{
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hwt_restart(smc);
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smc->hw.t_stop = smc->hw.t_start;
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smt_timer_done(smc) ;
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}
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/*
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* return S-port (PA or PB)
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*/
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int pcm_get_s_port(struct s_smc *smc)
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{
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SK_UNUSED(smc) ;
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return PS;
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}
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/*
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* Station Label = "FDDI-XYZ" where
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*
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* X = connector type
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* Y = PMD type
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* Z = port type
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*/
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#define STATION_LABEL_CONNECTOR_OFFSET 5
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#define STATION_LABEL_PMD_OFFSET 6
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#define STATION_LABEL_PORT_OFFSET 7
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void read_address(struct s_smc *smc, u_char *mac_addr)
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{
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char ConnectorType ;
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char PmdType ;
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int i ;
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#ifdef PCI
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for (i = 0; i < 6; i++) { /* read mac address from board */
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smc->hw.fddi_phys_addr.a[i] =
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bitrev8(inp(ADDR(B2_MAC_0+i)));
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}
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#endif
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ConnectorType = inp(ADDR(B2_CONN_TYP)) ;
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PmdType = inp(ADDR(B2_PMD_TYP)) ;
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smc->y[PA].pmd_type[PMD_SK_CONN] =
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smc->y[PB].pmd_type[PMD_SK_CONN] = ConnectorType ;
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smc->y[PA].pmd_type[PMD_SK_PMD ] =
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smc->y[PB].pmd_type[PMD_SK_PMD ] = PmdType ;
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if (mac_addr) {
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for (i = 0; i < 6 ;i++) {
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smc->hw.fddi_canon_addr.a[i] = mac_addr[i] ;
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smc->hw.fddi_home_addr.a[i] = bitrev8(mac_addr[i]);
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}
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return ;
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}
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smc->hw.fddi_home_addr = smc->hw.fddi_phys_addr ;
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for (i = 0; i < 6 ;i++) {
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smc->hw.fddi_canon_addr.a[i] =
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bitrev8(smc->hw.fddi_phys_addr.a[i]);
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}
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}
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/*
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* FDDI card soft reset
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*/
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void init_board(struct s_smc *smc, u_char *mac_addr)
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{
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card_start(smc) ;
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read_address(smc,mac_addr) ;
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if (!(inp(ADDR(B0_DAS)) & DAS_AVAIL))
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smc->s.sas = SMT_SAS ; /* Single att. station */
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else
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smc->s.sas = SMT_DAS ; /* Dual att. station */
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if (!(inp(ADDR(B0_DAS)) & DAS_BYP_ST))
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smc->mib.fddiSMTBypassPresent = 0 ;
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/* without opt. bypass */
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else
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smc->mib.fddiSMTBypassPresent = 1 ;
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/* with opt. bypass */
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}
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/*
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* insert or deinsert optical bypass (called by ECM)
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*/
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void sm_pm_bypass_req(struct s_smc *smc, int mode)
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{
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DB_ECMN(1, "ECM : sm_pm_bypass_req(%s)",
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mode == BP_INSERT ? "BP_INSERT" : "BP_DEINSERT");
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if (smc->s.sas != SMT_DAS)
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return ;
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#ifdef PCI
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switch(mode) {
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case BP_INSERT :
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outp(ADDR(B0_DAS),DAS_BYP_INS) ; /* insert station */
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break ;
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case BP_DEINSERT :
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outp(ADDR(B0_DAS),DAS_BYP_RMV) ; /* bypass station */
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break ;
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}
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#endif
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}
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/*
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* check if bypass connected
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*/
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int sm_pm_bypass_present(struct s_smc *smc)
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{
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return (inp(ADDR(B0_DAS)) & DAS_BYP_ST) ? TRUE : FALSE;
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}
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void plc_clear_irq(struct s_smc *smc, int p)
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{
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||
|
|
SK_UNUSED(p) ;
|
||
|
|
|
||
|
|
SK_UNUSED(smc) ;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* led_indication called by rmt_indication() and
|
||
|
|
* pcm_state_change()
|
||
|
|
*
|
||
|
|
* Input:
|
||
|
|
* smc: SMT context
|
||
|
|
* led_event:
|
||
|
|
* 0 Only switch green LEDs according to their respective PCM state
|
||
|
|
* LED_Y_OFF just switch yellow LED off
|
||
|
|
* LED_Y_ON just switch yello LED on
|
||
|
|
*/
|
||
|
|
static void led_indication(struct s_smc *smc, int led_event)
|
||
|
|
{
|
||
|
|
/* use smc->hw.mac_ring_is_up == TRUE
|
||
|
|
* as indication for Ring Operational
|
||
|
|
*/
|
||
|
|
u_short led_state ;
|
||
|
|
struct s_phy *phy ;
|
||
|
|
struct fddi_mib_p *mib_a ;
|
||
|
|
struct fddi_mib_p *mib_b ;
|
||
|
|
|
||
|
|
phy = &smc->y[PA] ;
|
||
|
|
mib_a = phy->mib ;
|
||
|
|
phy = &smc->y[PB] ;
|
||
|
|
mib_b = phy->mib ;
|
||
|
|
|
||
|
|
#ifdef PCI
|
||
|
|
led_state = 0 ;
|
||
|
|
|
||
|
|
/* Ring up = yellow led OFF*/
|
||
|
|
if (led_event == LED_Y_ON) {
|
||
|
|
led_state |= LED_MY_ON ;
|
||
|
|
}
|
||
|
|
else if (led_event == LED_Y_OFF) {
|
||
|
|
led_state |= LED_MY_OFF ;
|
||
|
|
}
|
||
|
|
else { /* PCM state changed */
|
||
|
|
/* Link at Port A/S = green led A ON */
|
||
|
|
if (mib_a->fddiPORTPCMState == PC8_ACTIVE) {
|
||
|
|
led_state |= LED_GA_ON ;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
led_state |= LED_GA_OFF ;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Link at Port B = green led B ON */
|
||
|
|
if (mib_b->fddiPORTPCMState == PC8_ACTIVE) {
|
||
|
|
led_state |= LED_GB_ON ;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
led_state |= LED_GB_OFF ;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
outp(ADDR(B0_LED), led_state) ;
|
||
|
|
#endif /* PCI */
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void pcm_state_change(struct s_smc *smc, int plc, int p_state)
|
||
|
|
{
|
||
|
|
/*
|
||
|
|
* the current implementation of pcm_state_change() in the driver
|
||
|
|
* parts must be renamed to drv_pcm_state_change() which will be called
|
||
|
|
* now after led_indication.
|
||
|
|
*/
|
||
|
|
DRV_PCM_STATE_CHANGE(smc,plc,p_state) ;
|
||
|
|
|
||
|
|
led_indication(smc,0) ;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
void rmt_indication(struct s_smc *smc, int i)
|
||
|
|
{
|
||
|
|
/* Call a driver special function if defined */
|
||
|
|
DRV_RMT_INDICATION(smc,i) ;
|
||
|
|
|
||
|
|
led_indication(smc, i ? LED_Y_OFF : LED_Y_ON) ;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* llc_recover_tx called by init_tx (fplus.c)
|
||
|
|
*/
|
||
|
|
void llc_recover_tx(struct s_smc *smc)
|
||
|
|
{
|
||
|
|
#ifdef LOAD_GEN
|
||
|
|
extern int load_gen_flag ;
|
||
|
|
|
||
|
|
load_gen_flag = 0 ;
|
||
|
|
#endif
|
||
|
|
#ifndef SYNC
|
||
|
|
smc->hw.n_a_send= 0 ;
|
||
|
|
#else
|
||
|
|
SK_UNUSED(smc) ;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef MULT_OEM
|
||
|
|
static int is_equal_num(char comp1[], char comp2[], int num)
|
||
|
|
{
|
||
|
|
int i ;
|
||
|
|
|
||
|
|
for (i = 0 ; i < num ; i++) {
|
||
|
|
if (comp1[i] != comp2[i])
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
return 1;
|
||
|
|
} /* is_equal_num */
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* set the OEM ID defaults, and test the contents of the OEM data base
|
||
|
|
* The default OEM is the first ACTIVE entry in the OEM data base
|
||
|
|
*
|
||
|
|
* returns: 0 success
|
||
|
|
* 1 error in data base
|
||
|
|
* 2 data base empty
|
||
|
|
* 3 no active entry
|
||
|
|
*/
|
||
|
|
int set_oi_id_def(struct s_smc *smc)
|
||
|
|
{
|
||
|
|
int sel_id ;
|
||
|
|
int i ;
|
||
|
|
int act_entries ;
|
||
|
|
|
||
|
|
i = 0 ;
|
||
|
|
sel_id = -1 ;
|
||
|
|
act_entries = FALSE ;
|
||
|
|
smc->hw.oem_id = 0 ;
|
||
|
|
smc->hw.oem_min_status = OI_STAT_ACTIVE ;
|
||
|
|
|
||
|
|
/* check OEM data base */
|
||
|
|
while (oem_ids[i].oi_status) {
|
||
|
|
switch (oem_ids[i].oi_status) {
|
||
|
|
case OI_STAT_ACTIVE:
|
||
|
|
act_entries = TRUE ; /* we have active IDs */
|
||
|
|
if (sel_id == -1)
|
||
|
|
sel_id = i ; /* save the first active ID */
|
||
|
|
case OI_STAT_VALID:
|
||
|
|
case OI_STAT_PRESENT:
|
||
|
|
i++ ;
|
||
|
|
break ; /* entry ok */
|
||
|
|
default:
|
||
|
|
return 1; /* invalid oi_status */
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (i == 0)
|
||
|
|
return 2;
|
||
|
|
if (!act_entries)
|
||
|
|
return 3;
|
||
|
|
|
||
|
|
/* ok, we have a valid OEM data base with an active entry */
|
||
|
|
smc->hw.oem_id = (struct s_oem_ids *) &oem_ids[sel_id] ;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#endif /* MULT_OEM */
|
||
|
|
|
||
|
|
void driver_get_bia(struct s_smc *smc, struct fddi_addr *bia_addr)
|
||
|
|
{
|
||
|
|
int i ;
|
||
|
|
|
||
|
|
for (i = 0 ; i < 6 ; i++)
|
||
|
|
bia_addr->a[i] = bitrev8(smc->hw.fddi_phys_addr.a[i]);
|
||
|
|
}
|
||
|
|
|
||
|
|
void smt_start_watchdog(struct s_smc *smc)
|
||
|
|
{
|
||
|
|
SK_UNUSED(smc) ; /* Make LINT happy. */
|
||
|
|
|
||
|
|
#ifndef DEBUG
|
||
|
|
|
||
|
|
#ifdef PCI
|
||
|
|
if (smc->hw.wdog_used) {
|
||
|
|
outpw(ADDR(B2_WDOG_CRTL),TIM_START) ; /* Start timer. */
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* DEBUG */
|
||
|
|
}
|
||
|
|
|
||
|
|
static void smt_stop_watchdog(struct s_smc *smc)
|
||
|
|
{
|
||
|
|
SK_UNUSED(smc) ; /* Make LINT happy. */
|
||
|
|
#ifndef DEBUG
|
||
|
|
|
||
|
|
#ifdef PCI
|
||
|
|
if (smc->hw.wdog_used) {
|
||
|
|
outpw(ADDR(B2_WDOG_CRTL),TIM_STOP) ; /* Stop timer. */
|
||
|
|
}
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* DEBUG */
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef PCI
|
||
|
|
|
||
|
|
void mac_do_pci_fix(struct s_smc *smc)
|
||
|
|
{
|
||
|
|
SK_UNUSED(smc) ;
|
||
|
|
}
|
||
|
|
#endif /* PCI */
|
||
|
|
|