/* Copyright (C) 2003-2005 SBE, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <asm/io.h>
#include <linux/hdlc.h>
#include "pmcc4_sysdep.h"
#include "sbecom_inline_linux.h"
#include "libsbew.h"
#include "pmcc4.h"
#include "comet.h"
#include "comet_tables.h"
#ifdef SBE_INCLUDE_SYMBOLS
#define STATIC
#else
#define STATIC static
#endif
extern int cxt1e1_log_level;
#define COMET_NUM_SAMPLES 24 /* Number of entries in the waveform table */
#define COMET_NUM_UNITS 5 /* Number of points per entry in table */
/* forward references */
STATIC void SetPwrLevel (comet_t * comet);
STATIC void WrtRcvEqualizerTbl (ci_t * ci, comet_t * comet, u_int32_t *table);
STATIC void WrtXmtWaveformTbl (ci_t * ci, comet_t * comet, u_int8_t table[COMET_NUM_SAMPLES][COMET_NUM_UNITS]);
void *TWV_table[12] = {
TWVLongHaul0DB, TWVLongHaul7_5DB, TWVLongHaul15DB, TWVLongHaul22_5DB,
TWVShortHaul0, TWVShortHaul1, TWVShortHaul2, TWVShortHaul3, TWVShortHaul4,
TWVShortHaul5,
TWV_E1_75Ohm, /** PORT POINT - 75 Ohm not supported **/
TWV_E1_120Ohm
};
static int
lbo_tbl_lkup (int t1, int lbo)
{
if ((lbo < CFG_LBO_LH0) || (lbo > CFG_LBO_E120)) /* error switches to
* default */
{
if (t1)
lbo = CFG_LBO_LH0; /* default T1 waveform table */
else
lbo = CFG_LBO_E120; /* default E1 waveform table */
}
return (lbo - 1); /* make index ZERO relative */
}
void
init_comet (void *ci, comet_t * comet, u_int32_t port_mode, int clockmaster,
u_int8_t moreParams)
{
u_int8_t isT1mode;
u_int8_t tix = CFG_LBO_LH0; /* T1 default */
isT1mode = IS_FRAME_ANY_T1 (port_mode);
/* T1 or E1 */
if (isT1mode)
{
pci_write_32 ((u_int32_t *) &comet->gbl_cfg, 0xa0); /* Select T1 Mode & PIO
* output enabled */
tix = lbo_tbl_lkup (isT1mode, CFG_LBO_LH0); /* default T1 waveform
* table */
} else
{
pci_write_32 ((u_int32_t *) &comet->gbl_cfg, 0x81); /* Select E1 Mode & PIO
* output enabled */
tix = lbo_tbl_lkup (isT1mode, CFG_LBO_E120); /* default E1 waveform
* table */
}
if (moreParams & CFG_LBO_MASK)
tix = lbo_tbl_lkup (isT1mode, moreParams & CFG_LBO_MASK); /* dial-in requested
* waveform table */
/* Tx line Intfc cfg ** Set for analog & no special patterns */
pci_write_32 ((u_int32_t *) &comet->tx_line_cfg, 0x00); /* Transmit Line
* Interface Config. */
/* master test ** Ignore Test settings for now */
pci_write_32 ((u_int32_t *) &comet->mtest, 0x00); /* making sure it's
* Default value */
/* Turn on Center (CENT) and everything else off */
pci_write_32 ((u_int32_t *) &comet->rjat_cfg, 0x10); /* RJAT cfg */
/* Set Jitter Attenuation to recommend T1 values */
if (isT1mode)
{
pci_write_32 ((u_int32_t *) &comet->rjat_n1clk, 0x2F); /* RJAT Divider N1
* Control */
pci_write_32 ((u_int32_t *) &comet->rjat_n2clk, 0x2F); /* RJAT Divider N2
* Control */
} else
{
pci_write_32 ((u_int32_t *) &comet->rjat_n1clk, 0xFF); /* RJAT Divider N1
* Control */
pci_write_32 ((u_int32_t *) &comet->rjat_n2clk, 0xFF); /* RJAT Divider N2
* Control */
}
/* Turn on Center (CENT) and everything else off */
pci_write_32 ((u_int32_t *) &comet->tjat_cfg, 0x10); /* TJAT Config. */
/* Do not bypass jitter attenuation and bypass elastic store */
pci_write_32 ((u_int32_t *) &comet->rx_opt, 0x00); /* rx opts */
/* TJAT ctrl & TJAT divider ctrl */
/* Set Jitter Attenuation to recommended T1 values */
if (isT1mode)
{
pci_write_32 ((u_int32_t *) &comet->tjat_n1clk, 0x2F); /* TJAT Divider N1
* Control */
pci_write_32 ((u_int32_t *) &comet->tjat_n2clk, 0x2F); /* TJAT Divider N2
* Control */
} else
{
pci_write_32 ((u_int32_t *) &comet->tjat_n1clk, 0xFF); /* TJAT Divider N1
* Control */
pci_write_32 ((u_int32_t *) &comet->tjat_n2clk, 0xFF); /* TJAT Divider N2
* Control */
}
/* 1c: rx ELST cfg 20: tx ELST cfg 28&38: rx&tx data link ctrl */
if (isT1mode)
{ /* Select 193-bit frame format */
pci_write_32 ((u_int32_t *) &comet->rx_elst_cfg, 0x00);
pci_write_32 ((u_int32_t *) &comet->tx_elst_cfg, 0x00);
} else
{ /* Select 256-bit frame format */
pci_write_32 ((u_int32_t *) &comet->rx_elst_cfg, 0x03);
pci_write_32 ((u_int32_t *) &comet->tx_elst_cfg, 0x03);
pci_write_32 ((u_int32_t *) &comet->rxce1_ctl, 0x00); /* disable T1 data link
* receive */
pci_write_32 ((u_int32_t *) &comet->txci1_ctl, 0x00); /* disable T1 data link
* transmit */
}
/* the following is a default value */
/* Enable 8 out of 10 validation */
pci_write_32 ((u_int32_t *) &comet->t1_rboc_ena, 0x00); /* t1RBOC
* enable(BOC:BitOriented
* Code) */
if (isT1mode)
{
/* IBCD cfg: aka Inband Code Detection ** loopback code length set to */
pci_write_32 ((u_int32_t *) &comet->ibcd_cfg, 0x04); /* 6 bit down, 5 bit up
* (assert) */
pci_write_32 ((u_int32_t *) &comet->ibcd_act, 0x08); /* line loopback
* activate pattern */
pci_write_32 ((u_int32_t *) &comet->ibcd_deact, 0x24); /* deactivate code
* pattern (i.e.001) */
}
/* 10: CDRC cfg 28&38: rx&tx data link 1 ctrl 48: t1 frmr cfg */
/* 50: SIGX cfg, COSS (change of signaling state) 54: XBAS cfg */
/* 60: t1 ALMI cfg */
/* Configure Line Coding */
switch (port_mode)
{
case CFG_FRAME_SF: /* 1 - T1 B8ZS */
pci_write_32 ((u_int32_t *) &comet->cdrc_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->t1_frmr_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->sigx_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->t1_xbas_cfg, 0x20); /* 5:B8ZS */
pci_write_32 ((u_int32_t *) &comet->t1_almi_cfg, 0);
break;
case CFG_FRAME_ESF: /* 2 - T1 B8ZS */
pci_write_32 ((u_int32_t *) &comet->cdrc_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->rxce1_ctl, 0x20); /* Bit 5: T1 DataLink
* Enable */
pci_write_32 ((u_int32_t *) &comet->txci1_ctl, 0x20); /* 5: T1 DataLink Enable */
pci_write_32 ((u_int32_t *) &comet->t1_frmr_cfg, 0x30); /* 4:ESF 5:ESFFA */
pci_write_32 ((u_int32_t *) &comet->sigx_cfg, 0x04); /* 2:ESF */
pci_write_32 ((u_int32_t *) &comet->t1_xbas_cfg, 0x30); /* 4:ESF 5:B8ZS */
pci_write_32 ((u_int32_t *) &comet->t1_almi_cfg, 0x10); /* 4:ESF */
break;
case CFG_FRAME_E1PLAIN: /* 3 - HDB3 */
pci_write_32 ((u_int32_t *) &comet->cdrc_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->sigx_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->e1_tran_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->e1_frmr_aopts, 0x40);
break;
case CFG_FRAME_E1CAS: /* 4 - HDB3 */
pci_write_32 ((u_int32_t *) &comet->cdrc_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->sigx_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->e1_tran_cfg, 0x60);
pci_write_32 ((u_int32_t *) &comet->e1_frmr_aopts, 0);
break;
case CFG_FRAME_E1CRC: /* 5 - HDB3 */
pci_write_32 ((u_int32_t *) &comet->cdrc_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->sigx_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->e1_tran_cfg, 0x10);
pci_write_32 ((u_int32_t *) &comet->e1_frmr_aopts, 0xc2);
break;
case CFG_FRAME_E1CRC_CAS: /* 6 - HDB3 */
pci_write_32 ((u_int32_t *) &comet->cdrc_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->sigx_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->e1_tran_cfg, 0x70);
pci_write_32 ((u_int32_t *) &comet->e1_frmr_aopts, 0x82);
break;
case CFG_FRAME_SF_AMI: /* 7 - T1 AMI */
pci_write_32 ((u_int32_t *) &comet->cdrc_cfg, 0x80); /* Enable AMI Line
* Decoding */
pci_write_32 ((u_int32_t *) &comet->t1_frmr_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->t1_xbas_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->t1_almi_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->sigx_cfg, 0);
break;
case CFG_FRAME_ESF_AMI: /* 8 - T1 AMI */
pci_write_32 ((u_int32_t *) &comet->cdrc_cfg, 0x80); /* Enable AMI Line
* Decoding */
pci_write_32 ((u_int32_t *) &comet->rxce1_ctl, 0x20); /* 5: T1 DataLink Enable */
pci_write_32 ((u_int32_t *) &comet->txci1_ctl, 0x20); /* 5: T1 DataLink Enable */
pci_write_32 ((u_int32_t *) &comet->t1_frmr_cfg, 0x30); /* Bit 4:ESF 5:ESFFA */
pci_write_32 ((u_int32_t *) &comet->sigx_cfg, 0x04); /* 2:ESF */
pci_write_32 ((u_int32_t *) &comet->t1_xbas_cfg, 0x10); /* 4:ESF */
pci_write_32 ((u_int32_t *) &comet->t1_almi_cfg, 0x10); /* 4:ESF */
break;
case CFG_FRAME_E1PLAIN_AMI: /* 9 - AMI */
pci_write_32 ((u_int32_t *) &comet->cdrc_cfg, 0x80); /* Enable AMI Line
* Decoding */
pci_write_32 ((u_int32_t *) &comet->sigx_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->e1_tran_cfg, 0x80);
pci_write_32 ((u_int32_t *) &comet->e1_frmr_aopts, 0x40);
break;
case CFG_FRAME_E1CAS_AMI: /* 10 - AMI */
pci_write_32 ((u_int32_t *) &comet->cdrc_cfg, 0x80); /* Enable AMI Line
* Decoding */
pci_write_32 ((u_int32_t *) &comet->sigx_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->e1_tran_cfg, 0xe0);
pci_write_32 ((u_int32_t *) &comet->e1_frmr_aopts, 0);
break;
case CFG_FRAME_E1CRC_AMI: /* 11 - AMI */
pci_write_32 ((u_int32_t *) &comet->cdrc_cfg, 0x80); /* Enable AMI Line
* Decoding */
pci_write_32 ((u_int32_t *) &comet->sigx_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->e1_tran_cfg, 0x90);
pci_write_32 ((u_int32_t *) &comet->e1_frmr_aopts, 0xc2);
break;
case CFG_FRAME_E1CRC_CAS_AMI: /* 12 - AMI */
pci_write_32 ((u_int32_t *) &comet->cdrc_cfg, 0x80); /* Enable AMI Line
* Decoding */
pci_write_32 ((u_int32_t *) &comet->sigx_cfg, 0);
pci_write_32 ((u_int32_t *) &comet->e1_tran_cfg, 0xf0);
pci_write_32 ((u_int32_t *) &comet->e1_frmr_aopts, 0x82);
break;
} /* end switch */
/***
* Set Full Frame mode (NXDSO[1] = 0, NXDSO[0] = 0)
* CMODE=1: Clock slave mode with BRCLK as an input,
* DE=0: Use falling edge of BRCLK for data,
* FE=0: Use falling edge of BRCLK for frame,
* CMS=0: Use backplane freq,
* RATE[1:0]=0,0: T1
***/
/* 0x30: "BRIF cfg"; 0x20 is 'CMODE', 0x03 is (bit) rate */
/* note "rate bits can only be set once after reset" */
if (clockmaster)
{ /* CMODE == clockMode, 0=clock master (so
* all 3 others should be slave) */
if (isT1mode) /* rate = 1.544 Mb/s */
pci_write_32 ((u_int32_t *) &comet->brif_cfg, 0x00); /* Comet 0 Master
* Mode(CMODE=0) */
else /* rate = 2.048 Mb/s */
pci_write_32 ((u_int32_t *) &comet->brif_cfg, 0x01); /* Comet 0 Master
* Mode(CMODE=0) */
/* 31: BRIF frame pulse cfg 06: tx timing options */
pci_write_32 ((u_int32_t *) &comet->brif_fpcfg, 0x00); /* Master Mode
* i.e.FPMODE=0 (@0x20) */
if ((moreParams & CFG_CLK_PORT_MASK) == CFG_CLK_PORT_INTERNAL)
{
if (cxt1e1_log_level >= LOG_SBEBUG12)
pr_info(">> %s: clockmaster internal clock\n", __func__);
pci_write_32 ((u_int32_t *) &comet->tx_time, 0x0d); /* internal oscillator */
} else /* external clock source */
{
if (cxt1e1_log_level >= LOG_SBEBUG12)
pr_info(">> %s: clockmaster external clock\n", __func__);
pci_write_32 ((u_int32_t *) &comet->tx_time, 0x09); /* loop timing
* (external) */
}
} else /* slave */
{
if (isT1mode)
pci_write_32 ((u_int32_t *) &comet->brif_cfg, 0x20); /* Slave Mode(CMODE=1,
* see above) */
else
pci_write_32 ((u_int32_t *) &comet->brif_cfg, 0x21); /* Slave Mode (CMODE=1) */
pci_write_32 ((u_int32_t *) &comet->brif_fpcfg, 0x20); /* Slave Mode i.e.
* FPMODE=1 (@0x20) */
if (cxt1e1_log_level >= LOG_SBEBUG12)
pr_info(">> %s: clockslave internal clock\n", __func__);
pci_write_32 ((u_int32_t *) &comet->tx_time, 0x0d); /* oscillator timing */
}
/* 32: BRIF parity F-bit cfg */
/* Totem-pole operation */
pci_write_32 ((u_int32_t *) &comet->brif_pfcfg, 0x01); /* Receive Backplane
* Parity/F-bit */
/* dc: RLPS equalizer V ref */
/* Configuration */
if (isT1mode)
pci_write_32 ((u_int32_t *) &comet->rlps_eqvr, 0x2c); /* RLPS Equalizer
* Voltage */
else
pci_write_32 ((u_int32_t *) &comet->rlps_eqvr, 0x34); /* RLPS Equalizer
* Voltage */
/* Reserved bit set and SQUELCH enabled */
/* f8: RLPS cfg & status f9: RLPS ALOS detect/clear threshold */
pci_write_32 ((u_int32_t *) &comet->rlps_cfgsts, 0x11); /* RLPS Configuration
* Status */
if (isT1mode)
pci_write_32 ((u_int32_t *) &comet->rlps_alos_thresh, 0x55); /* ? */
else
pci_write_32 ((u_int32_t *) &comet->rlps_alos_thresh, 0x22); /* ? */
/* Set Full Frame mode (NXDSO[1] = 0, NXDSO[0] = 0) */
/* CMODE=0: Clock slave mode with BTCLK as an input, DE=1: Use rising */
/* edge of BTCLK for data, FE=1: Use rising edge of BTCLK for frame, */
/* CMS=0: Use backplane freq, RATE[1:0]=0,0: T1 */
/*** Transmit side is always an Input, Slave Clock*/
/* 40: BTIF cfg 41: BTIF frame pulse cfg */
if (isT1mode)
pci_write_32 ((u_int32_t *) &comet->btif_cfg, 0x38); /* BTIF Configuration
* Reg. */
else
pci_write_32 ((u_int32_t *) &comet->btif_cfg, 0x39); /* BTIF Configuration
* Reg. */
pci_write_32 ((u_int32_t *) &comet->btif_fpcfg, 0x01); /* BTIF Frame Pulse
* Config. */
/* 0a: master diag 06: tx timing options */
/* if set Comet to loop back */
/* Comets set to normal */
pci_write_32 ((u_int32_t *) &comet->mdiag, 0x00);
/* BTCLK driven by TCLKI internally (crystal driven) and Xmt Elasted */
/* Store is enabled. */
WrtXmtWaveformTbl (ci, comet, TWV_table[tix]);
if (isT1mode)
WrtRcvEqualizerTbl ((ci_t *) ci, comet, &T1_Equalizer[0]);
else
WrtRcvEqualizerTbl ((ci_t *) ci, comet, &E1_Equalizer[0]);
SetPwrLevel (comet);
}
/*
** Name: WrtXmtWaveform
** Description: Formulate the Data for the Pulse Waveform Storage
** Write register, (F2), from the sample and unit inputs.
** Write the data to the Pulse Waveform Storage Data register.
** Returns: Nothing
*/
STATIC void
WrtXmtWaveform (ci_t * ci, comet_t * comet, u_int32_t sample, u_int32_t unit, u_int8_t data)
{
u_int8_t WaveformAddr;
WaveformAddr = (sample << 3) + (unit & 7);
pci_write_32 ((u_int32_t *) &comet->xlpg_pwave_addr, WaveformAddr);
pci_flush_write (ci); /* for write order preservation when
* Optimizing driver */
pci_write_32 ((u_int32_t *) &comet->xlpg_pwave_data, 0x7F & data);
}
/*
** Name: WrtXmtWaveformTbl
** Description: Fill in the Transmit Waveform Values
** for driving the transmitter DAC.
** Returns: Nothing
*/
STATIC void
WrtXmtWaveformTbl (ci_t * ci, comet_t * comet,
u_int8_t table[COMET_NUM_SAMPLES][COMET_NUM_UNITS])
{
u_int32_t sample, unit;
for (sample = 0; sample < COMET_NUM_SAMPLES; sample++)
{
for (unit = 0; unit < COMET_NUM_UNITS; unit++)
WrtXmtWaveform (ci, comet, sample, unit, table[sample][unit]);
}
/* Enable transmitter and set output amplitude */
pci_write_32 ((u_int32_t *) &comet->xlpg_cfg, table[COMET_NUM_SAMPLES][0]);
}
/*
** Name: WrtXmtWaveform
** Description: Fill in the Receive Equalizer RAM from the desired
** table.
** Returns: Nothing
**
** Remarks: Per PM4351 Device Errata, Receive Equalizer RAM Initialization
** is coded with early setup of indirect address.
*/
STATIC void
WrtRcvEqualizerTbl (ci_t * ci, comet_t * comet, u_int32_t *table)
{
u_int32_t ramaddr;
volatile u_int32_t value;
for (ramaddr = 0; ramaddr < 256; ramaddr++)
{
/*** the following lines are per Errata 7, 2.5 ***/
{
pci_write_32 ((u_int32_t *) &comet->rlps_eq_rwsel, 0x80); /* Set up for a read
* operation */
pci_flush_write (ci); /* for write order preservation when
* Optimizing driver */
pci_write_32 ((u_int32_t *) &comet->rlps_eq_iaddr, (u_int8_t) ramaddr); /* write the addr,
* initiate a read */
pci_flush_write (ci); /* for write order preservation when
* Optimizing driver */
/*
* wait 3 line rate clock cycles to ensure address bits are
* captured by T1/E1 clock
*/
OS_uwait (4, "wret"); /* 683ns * 3 = 1366 ns, approx 2us (but
* use 4us) */
}
value = *table++;
pci_write_32 ((u_int32_t *) &comet->rlps_idata3, (u_int8_t) (value >> 24));
pci_write_32 ((u_int32_t *) &comet->rlps_idata2, (u_int8_t) (value >> 16));
pci_write_32 ((u_int32_t *) &comet->rlps_idata1, (u_int8_t) (value >> 8));
pci_write_32 ((u_int32_t *) &comet->rlps_idata0, (u_int8_t) value);
pci_flush_write (ci); /* for write order preservation when
* Optimizing driver */
/* Storing RAM address, causes RAM to be updated */
pci_write_32 ((u_int32_t *) &comet->rlps_eq_rwsel, 0); /* Set up for a write
* operation */
pci_flush_write (ci); /* for write order preservation when
* Optimizing driver */
pci_write_32 ((u_int32_t *) &comet->rlps_eq_iaddr, (u_int8_t) ramaddr); /* write the addr,
* initiate a read */
pci_flush_write (ci); /* for write order preservation when
* Optimizing driver */
/*
* wait 3 line rate clock cycles to ensure address bits are captured
* by T1/E1 clock
*/
OS_uwait (4, "wret"); /* 683ns * 3 = 1366 ns, approx 2us (but
* use 4us) */
}
pci_write_32 ((u_int32_t *) &comet->rlps_eq_cfg, 0xCB); /* Enable Equalizer &
* set it to use 256
* periods */
}
/*
** Name: SetPwrLevel
** Description: Implement power level setting algorithm described below
** Returns: Nothing
*/
STATIC void
SetPwrLevel (comet_t * comet)
{
volatile u_int32_t temp;
/*
** Algorithm to Balance the Power Distribution of Ttip Tring
**
** Zero register F6
** Write 0x01 to register F4
** Write another 0x01 to register F4
** Read register F4
** Remove the 0x01 bit by Anding register F4 with 0xFE
** Write the resultant value to register F4
** Repeat these steps for register F5
** Write 0x01 to register F6
*/
pci_write_32 ((u_int32_t *) &comet->xlpg_fdata_sel, 0x00); /* XLPG Fuse Data Select */
pci_write_32 ((u_int32_t *) &comet->xlpg_atest_pctl, 0x01); /* XLPG Analog Test
* Positive control */
pci_write_32 ((u_int32_t *) &comet->xlpg_atest_pctl, 0x01);
temp = pci_read_32 ((u_int32_t *) &comet->xlpg_atest_pctl) & 0xfe;
pci_write_32 ((u_int32_t *) &comet->xlpg_atest_pctl, temp);
pci_write_32 ((u_int32_t *) &comet->xlpg_atest_nctl, 0x01); /* XLPG Analog Test
* Negative control */
pci_write_32 ((u_int32_t *) &comet->xlpg_atest_nctl, 0x01);
temp = pci_read_32 ((u_int32_t *) &comet->xlpg_atest_nctl) & 0xfe;
pci_write_32 ((u_int32_t *) &comet->xlpg_atest_nctl, temp);
pci_write_32 ((u_int32_t *) &comet->xlpg_fdata_sel, 0x01); /* XLPG */
}
/*
** Name: SetCometOps
** Description: Set up the selected Comet's clock edge drive for both
** the transmit out the analog side and receive to the
** backplane side.
** Returns: Nothing
*/
#if 0
STATIC void
SetCometOps (comet_t * comet)
{
volatile u_int8_t rd_value;
if (comet == mConfig.C4Func1Base + (COMET0_OFFSET >> 2))
{
rd_value = (u_int8_t) pci_read_32 ((u_int32_t *) &comet->brif_cfg); /* read the BRIF
* Configuration */
rd_value &= ~0x20;
pci_write_32 ((u_int32_t *) &comet->brif_cfg, (u_int32_t) rd_value);
rd_value = (u_int8_t) pci_read_32 ((u_int32_t *) &comet->brif_fpcfg); /* read the BRIF Frame
* Pulse Configuration */
rd_value &= ~0x20;
pci_write_32 ((u_int32_t *) &comet->brif_fpcfg, (u_int8_t) rd_value);
} else
{
rd_value = (u_int8_t) pci_read_32 ((u_int32_t *) &comet->brif_cfg); /* read the BRIF
* Configuration */
rd_value |= 0x20;
pci_write_32 ((u_int32_t *) &comet->brif_cfg, (u_int32_t) rd_value);
rd_value = (u_int8_t) pci_read_32 ((u_int32_t *) &comet->brif_fpcfg); /* read the BRIF Frame
* Pulse Configuration */
rd_value |= 0x20;
pci_write_32 ((u_int32_t *) &comet->brif_fpcfg, (u_int8_t) rd_value);
}
}
#endif
/*** End-of-File ***/