518 lines
15 KiB
C
518 lines
15 KiB
C
/* drivers/atm/firestream.h - FireStream 155 (MB86697) and
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* FireStream 50 (MB86695) device driver
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*/
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/* Written & (C) 2000 by R.E.Wolff@BitWizard.nl
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* Copied snippets from zatm.c by Werner Almesberger, EPFL LRC/ICA
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* and ambassador.c Copyright (C) 1995-1999 Madge Networks Ltd
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*/
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/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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The GNU GPL is contained in /usr/doc/copyright/GPL on a Debian
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system and in the file COPYING in the Linux kernel source.
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*/
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/***********************************************************************
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* first the defines for the chip. *
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***********************************************************************/
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/********************* General chip parameters. ************************/
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#define FS_NR_FREE_POOLS 8
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#define FS_NR_RX_QUEUES 4
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/********************* queues and queue access macros ******************/
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/* A queue entry. */
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struct FS_QENTRY {
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u32 cmd;
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u32 p0, p1, p2;
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};
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/* A freepool entry. */
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struct FS_BPENTRY {
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u32 flags;
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u32 next;
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u32 bsa;
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u32 aal_bufsize;
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/* The hardware doesn't look at this, but we need the SKB somewhere... */
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struct sk_buff *skb;
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struct freepool *fp;
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struct fs_dev *dev;
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};
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#define STATUS_CODE(qe) ((qe->cmd >> 22) & 0x3f)
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/* OFFSETS against the base of a QUEUE... */
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#define QSA 0x00
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#define QEA 0x04
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#define QRP 0x08
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#define QWP 0x0c
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#define QCNF 0x10 /* Only for Release queues! */
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/* Not for the transmit pending queue. */
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/* OFFSETS against the base of a FREE POOL... */
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#define FPCNF 0x00
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#define FPSA 0x04
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#define FPEA 0x08
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#define FPCNT 0x0c
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#define FPCTU 0x10
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#define Q_SA(b) (b + QSA )
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#define Q_EA(b) (b + QEA )
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#define Q_RP(b) (b + QRP )
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#define Q_WP(b) (b + QWP )
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#define Q_CNF(b) (b + QCNF)
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#define FP_CNF(b) (b + FPCNF)
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#define FP_SA(b) (b + FPSA)
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#define FP_EA(b) (b + FPEA)
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#define FP_CNT(b) (b + FPCNT)
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#define FP_CTU(b) (b + FPCTU)
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/* bits in a queue register. */
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#define Q_FULL 0x1
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#define Q_EMPTY 0x2
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#define Q_INCWRAP 0x4
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#define Q_ADDR_MASK 0xfffffff0
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/* bits in a FreePool config register */
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#define RBFP_RBS (0x1 << 16)
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#define RBFP_RBSVAL (0x1 << 15)
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#define RBFP_CME (0x1 << 12)
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#define RBFP_DLP (0x1 << 11)
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#define RBFP_BFPWT (0x1 << 0)
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/* FireStream commands. */
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#define QE_CMD_NULL (0x00 << 22)
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#define QE_CMD_REG_RD (0x01 << 22)
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#define QE_CMD_REG_RDM (0x02 << 22)
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#define QE_CMD_REG_WR (0x03 << 22)
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#define QE_CMD_REG_WRM (0x04 << 22)
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#define QE_CMD_CONFIG_TX (0x05 << 22)
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#define QE_CMD_CONFIG_RX (0x06 << 22)
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#define QE_CMD_PRP_RD (0x07 << 22)
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#define QE_CMD_PRP_RDM (0x2a << 22)
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#define QE_CMD_PRP_WR (0x09 << 22)
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#define QE_CMD_PRP_WRM (0x2b << 22)
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#define QE_CMD_RX_EN (0x0a << 22)
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#define QE_CMD_RX_PURGE (0x0b << 22)
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#define QE_CMD_RX_PURGE_INH (0x0c << 22)
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#define QE_CMD_TX_EN (0x0d << 22)
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#define QE_CMD_TX_PURGE (0x0e << 22)
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#define QE_CMD_TX_PURGE_INH (0x0f << 22)
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#define QE_CMD_RST_CG (0x10 << 22)
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#define QE_CMD_SET_CG (0x11 << 22)
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#define QE_CMD_RST_CLP (0x12 << 22)
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#define QE_CMD_SET_CLP (0x13 << 22)
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#define QE_CMD_OVERRIDE (0x14 << 22)
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#define QE_CMD_ADD_BFP (0x15 << 22)
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#define QE_CMD_DUMP_TX (0x16 << 22)
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#define QE_CMD_DUMP_RX (0x17 << 22)
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#define QE_CMD_LRAM_RD (0x18 << 22)
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#define QE_CMD_LRAM_RDM (0x28 << 22)
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#define QE_CMD_LRAM_WR (0x19 << 22)
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#define QE_CMD_LRAM_WRM (0x29 << 22)
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#define QE_CMD_LRAM_BSET (0x1a << 22)
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#define QE_CMD_LRAM_BCLR (0x1b << 22)
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#define QE_CMD_CONFIG_SEGM (0x1c << 22)
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#define QE_CMD_READ_SEGM (0x1d << 22)
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#define QE_CMD_CONFIG_ROUT (0x1e << 22)
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#define QE_CMD_READ_ROUT (0x1f << 22)
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#define QE_CMD_CONFIG_TM (0x20 << 22)
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#define QE_CMD_READ_TM (0x21 << 22)
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#define QE_CMD_CONFIG_TXBM (0x22 << 22)
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#define QE_CMD_READ_TXBM (0x23 << 22)
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#define QE_CMD_CONFIG_RXBM (0x24 << 22)
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#define QE_CMD_READ_RXBM (0x25 << 22)
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#define QE_CMD_CONFIG_REAS (0x26 << 22)
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#define QE_CMD_READ_REAS (0x27 << 22)
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#define QE_TRANSMIT_DE (0x0 << 30)
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#define QE_CMD_LINKED (0x1 << 30)
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#define QE_CMD_IMM (0x2 << 30)
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#define QE_CMD_IMM_INQ (0x3 << 30)
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#define TD_EPI (0x1 << 27)
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#define TD_COMMAND (0x1 << 28)
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#define TD_DATA (0x0 << 29)
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#define TD_RM_CELL (0x1 << 29)
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#define TD_OAM_CELL (0x2 << 29)
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#define TD_OAM_CELL_SEGMENT (0x3 << 29)
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#define TD_BPI (0x1 << 20)
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#define FP_FLAGS_EPI (0x1 << 27)
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#define TX_PQ(i) (0x00 + (i) * 0x10)
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#define TXB_RQ (0x20)
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#define ST_Q (0x48)
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#define RXB_FP(i) (0x90 + (i) * 0x14)
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#define RXB_RQ(i) (0x134 + (i) * 0x14)
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#define TXQ_HP 0
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#define TXQ_LP 1
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/* Phew. You don't want to know how many revisions these simple queue
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* address macros went through before I got them nice and compact as
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* they are now. -- REW
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*/
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/* And now for something completely different:
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* The rest of the registers... */
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#define CMDR0 0x34
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#define CMDR1 0x38
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#define CMDR2 0x3c
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#define CMDR3 0x40
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#define SARMODE0 0x5c
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#define SARMODE0_TXVCS_0 (0x0 << 0)
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#define SARMODE0_TXVCS_1k (0x1 << 0)
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#define SARMODE0_TXVCS_2k (0x2 << 0)
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#define SARMODE0_TXVCS_4k (0x3 << 0)
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#define SARMODE0_TXVCS_8k (0x4 << 0)
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#define SARMODE0_TXVCS_16k (0x5 << 0)
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#define SARMODE0_TXVCS_32k (0x6 << 0)
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#define SARMODE0_TXVCS_64k (0x7 << 0)
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#define SARMODE0_TXVCS_32 (0x8 << 0)
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#define SARMODE0_ABRVCS_0 (0x0 << 4)
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#define SARMODE0_ABRVCS_512 (0x1 << 4)
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#define SARMODE0_ABRVCS_1k (0x2 << 4)
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#define SARMODE0_ABRVCS_2k (0x3 << 4)
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#define SARMODE0_ABRVCS_4k (0x4 << 4)
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#define SARMODE0_ABRVCS_8k (0x5 << 4)
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#define SARMODE0_ABRVCS_16k (0x6 << 4)
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#define SARMODE0_ABRVCS_32k (0x7 << 4)
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#define SARMODE0_ABRVCS_32 (0x9 << 4) /* The others are "8", this one really has to
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be 9. Tell me you don't believe me. -- REW */
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#define SARMODE0_RXVCS_0 (0x0 << 8)
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#define SARMODE0_RXVCS_1k (0x1 << 8)
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#define SARMODE0_RXVCS_2k (0x2 << 8)
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#define SARMODE0_RXVCS_4k (0x3 << 8)
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#define SARMODE0_RXVCS_8k (0x4 << 8)
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#define SARMODE0_RXVCS_16k (0x5 << 8)
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#define SARMODE0_RXVCS_32k (0x6 << 8)
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#define SARMODE0_RXVCS_64k (0x7 << 8)
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#define SARMODE0_RXVCS_32 (0x8 << 8)
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#define SARMODE0_CALSUP_1 (0x0 << 12)
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#define SARMODE0_CALSUP_2 (0x1 << 12)
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#define SARMODE0_CALSUP_3 (0x2 << 12)
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#define SARMODE0_CALSUP_4 (0x3 << 12)
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#define SARMODE0_PRPWT_FS50_0 (0x0 << 14)
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#define SARMODE0_PRPWT_FS50_2 (0x1 << 14)
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#define SARMODE0_PRPWT_FS50_5 (0x2 << 14)
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#define SARMODE0_PRPWT_FS50_11 (0x3 << 14)
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#define SARMODE0_PRPWT_FS155_0 (0x0 << 14)
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#define SARMODE0_PRPWT_FS155_1 (0x1 << 14)
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#define SARMODE0_PRPWT_FS155_2 (0x2 << 14)
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#define SARMODE0_PRPWT_FS155_3 (0x3 << 14)
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#define SARMODE0_SRTS0 (0x1 << 23)
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#define SARMODE0_SRTS1 (0x1 << 24)
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#define SARMODE0_RUN (0x1 << 25)
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#define SARMODE0_UNLOCK (0x1 << 26)
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#define SARMODE0_CWRE (0x1 << 27)
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#define SARMODE0_INTMODE_READCLEAR (0x0 << 28)
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#define SARMODE0_INTMODE_READNOCLEAR (0x1 << 28)
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#define SARMODE0_INTMODE_READNOCLEARINHIBIT (0x2 << 28)
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#define SARMODE0_INTMODE_READCLEARINHIBIT (0x3 << 28) /* Tell me you don't believe me. */
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#define SARMODE0_GINT (0x1 << 30)
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#define SARMODE0_SHADEN (0x1 << 31)
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#define SARMODE1 0x60
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#define SARMODE1_TRTL_SHIFT 0 /* Program to 0 */
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#define SARMODE1_RRTL_SHIFT 4 /* Program to 0 */
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#define SARMODE1_TAGM (0x1 << 8) /* Program to 0 */
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#define SARMODE1_HECM0 (0x1 << 9)
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#define SARMODE1_HECM1 (0x1 << 10)
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#define SARMODE1_HECM2 (0x1 << 11)
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#define SARMODE1_GFCE (0x1 << 14)
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#define SARMODE1_GFCR (0x1 << 15)
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#define SARMODE1_PMS (0x1 << 18)
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#define SARMODE1_GPRI (0x1 << 19)
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#define SARMODE1_GPAS (0x1 << 20)
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#define SARMODE1_GVAS (0x1 << 21)
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#define SARMODE1_GNAM (0x1 << 22)
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#define SARMODE1_GPLEN (0x1 << 23)
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#define SARMODE1_DUMPE (0x1 << 24)
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#define SARMODE1_OAMCRC (0x1 << 25)
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#define SARMODE1_DCOAM (0x1 << 26)
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#define SARMODE1_DCRM (0x1 << 27)
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#define SARMODE1_TSTLP (0x1 << 28)
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#define SARMODE1_DEFHEC (0x1 << 29)
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#define ISR 0x64
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#define IUSR 0x68
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#define IMR 0x6c
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#define ISR_LPCO (0x1 << 0)
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#define ISR_DPCO (0x1 << 1)
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#define ISR_RBRQ0_W (0x1 << 2)
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#define ISR_RBRQ1_W (0x1 << 3)
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#define ISR_RBRQ2_W (0x1 << 4)
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#define ISR_RBRQ3_W (0x1 << 5)
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#define ISR_RBRQ0_NF (0x1 << 6)
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#define ISR_RBRQ1_NF (0x1 << 7)
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#define ISR_RBRQ2_NF (0x1 << 8)
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#define ISR_RBRQ3_NF (0x1 << 9)
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#define ISR_BFP_SC (0x1 << 10)
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#define ISR_INIT (0x1 << 11)
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#define ISR_INIT_ERR (0x1 << 12) /* Documented as "reserved" */
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#define ISR_USCEO (0x1 << 13)
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#define ISR_UPEC0 (0x1 << 14)
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#define ISR_VPFCO (0x1 << 15)
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#define ISR_CRCCO (0x1 << 16)
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#define ISR_HECO (0x1 << 17)
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#define ISR_TBRQ_W (0x1 << 18)
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#define ISR_TBRQ_NF (0x1 << 19)
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#define ISR_CTPQ_E (0x1 << 20)
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#define ISR_GFC_C0 (0x1 << 21)
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#define ISR_PCI_FTL (0x1 << 22)
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#define ISR_CSQ_W (0x1 << 23)
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#define ISR_CSQ_NF (0x1 << 24)
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#define ISR_EXT_INT (0x1 << 25)
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#define ISR_RXDMA_S (0x1 << 26)
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#define TMCONF 0x78
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/* Bits? */
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#define CALPRESCALE 0x7c
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/* Bits? */
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#define CELLOSCONF 0x84
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#define CELLOSCONF_COTS (0x1 << 28)
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#define CELLOSCONF_CEN (0x1 << 27)
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#define CELLOSCONF_SC8 (0x3 << 24)
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#define CELLOSCONF_SC4 (0x2 << 24)
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#define CELLOSCONF_SC2 (0x1 << 24)
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#define CELLOSCONF_SC1 (0x0 << 24)
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#define CELLOSCONF_COBS (0x1 << 16)
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#define CELLOSCONF_COPK (0x1 << 8)
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#define CELLOSCONF_COST (0x1 << 0)
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/* Bits? */
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#define RAS0 0x1bc
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#define RAS0_DCD_XHLT (0x1 << 31)
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#define RAS0_VPSEL (0x1 << 16)
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#define RAS0_VCSEL (0x1 << 0)
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#define RAS1 0x1c0
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#define RAS1_UTREG (0x1 << 5)
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#define DMAMR 0x1cc
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#define DMAMR_TX_MODE_FULL (0x0 << 0)
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#define DMAMR_TX_MODE_PART (0x1 << 0)
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#define DMAMR_TX_MODE_NONE (0x2 << 0) /* And 3 */
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#define RAS2 0x280
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#define RAS2_NNI (0x1 << 0)
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#define RAS2_USEL (0x1 << 1)
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#define RAS2_UBS (0x1 << 2)
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struct fs_transmit_config {
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u32 flags;
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u32 atm_hdr;
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u32 TMC[4];
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u32 spec;
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u32 rtag[3];
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};
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#define TC_FLAGS_AAL5 (0x0 << 29)
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#define TC_FLAGS_TRANSPARENT_PAYLOAD (0x1 << 29)
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#define TC_FLAGS_TRANSPARENT_CELL (0x2 << 29)
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#define TC_FLAGS_STREAMING (0x1 << 28)
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#define TC_FLAGS_PACKET (0x0)
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#define TC_FLAGS_TYPE_ABR (0x0 << 22)
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#define TC_FLAGS_TYPE_CBR (0x1 << 22)
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#define TC_FLAGS_TYPE_VBR (0x2 << 22)
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#define TC_FLAGS_TYPE_UBR (0x3 << 22)
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#define TC_FLAGS_CAL0 (0x0 << 20)
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#define TC_FLAGS_CAL1 (0x1 << 20)
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#define TC_FLAGS_CAL2 (0x2 << 20)
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#define TC_FLAGS_CAL3 (0x3 << 20)
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#define RC_FLAGS_NAM (0x1 << 13)
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#define RC_FLAGS_RXBM_PSB (0x0 << 14)
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#define RC_FLAGS_RXBM_CIF (0x1 << 14)
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#define RC_FLAGS_RXBM_PMB (0x2 << 14)
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#define RC_FLAGS_RXBM_STR (0x4 << 14)
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#define RC_FLAGS_RXBM_SAF (0x6 << 14)
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#define RC_FLAGS_RXBM_POS (0x6 << 14)
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#define RC_FLAGS_BFPS (0x1 << 17)
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#define RC_FLAGS_BFPS_BFP (0x1 << 17)
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#define RC_FLAGS_BFPS_BFP0 (0x0 << 17)
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#define RC_FLAGS_BFPS_BFP1 (0x1 << 17)
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#define RC_FLAGS_BFPS_BFP2 (0x2 << 17)
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#define RC_FLAGS_BFPS_BFP3 (0x3 << 17)
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#define RC_FLAGS_BFPS_BFP4 (0x4 << 17)
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#define RC_FLAGS_BFPS_BFP5 (0x5 << 17)
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#define RC_FLAGS_BFPS_BFP6 (0x6 << 17)
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#define RC_FLAGS_BFPS_BFP7 (0x7 << 17)
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#define RC_FLAGS_BFPS_BFP01 (0x8 << 17)
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#define RC_FLAGS_BFPS_BFP23 (0x9 << 17)
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#define RC_FLAGS_BFPS_BFP45 (0xa << 17)
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#define RC_FLAGS_BFPS_BFP67 (0xb << 17)
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#define RC_FLAGS_BFPS_BFP07 (0xc << 17)
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#define RC_FLAGS_BFPS_BFP27 (0xd << 17)
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#define RC_FLAGS_BFPS_BFP47 (0xe << 17)
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#define RC_FLAGS_BFPP (0x1 << 21)
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#define RC_FLAGS_TEVC (0x1 << 22)
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#define RC_FLAGS_TEP (0x1 << 23)
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#define RC_FLAGS_AAL5 (0x0 << 24)
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#define RC_FLAGS_TRANSP (0x1 << 24)
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#define RC_FLAGS_TRANSC (0x2 << 24)
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#define RC_FLAGS_ML (0x1 << 27)
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#define RC_FLAGS_TRBRM (0x1 << 28)
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#define RC_FLAGS_PRI (0x1 << 29)
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#define RC_FLAGS_HOAM (0x1 << 30)
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#define RC_FLAGS_CRC10 (0x1 << 31)
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#define RAC 0x1c8
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#define RAM 0x1c4
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/************************************************************************
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* Then the datastructures that the DRIVER uses. *
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************************************************************************/
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#define TXQ_NENTRIES 32
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#define RXRQ_NENTRIES 1024
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struct fs_vcc {
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int channo;
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wait_queue_head_t close_wait;
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struct sk_buff *last_skb;
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};
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struct queue {
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struct FS_QENTRY *sa, *ea;
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int offset;
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};
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|
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struct freepool {
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|
int offset;
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int bufsize;
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|
int nr_buffers;
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|
int n;
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|
};
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|
|
|
|
|
struct fs_dev {
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|
struct fs_dev *next; /* other FS devices */
|
|
int flags;
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|
|
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unsigned char irq; /* IRQ */
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|
struct pci_dev *pci_dev; /* PCI stuff */
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|
struct atm_dev *atm_dev;
|
|
struct timer_list timer;
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|
|
|
unsigned long hw_base; /* mem base address */
|
|
void __iomem *base; /* Mapping of base address */
|
|
int channo;
|
|
unsigned long channel_mask;
|
|
|
|
struct queue hp_txq, lp_txq, tx_relq, st_q;
|
|
struct freepool rx_fp[FS_NR_FREE_POOLS];
|
|
struct queue rx_rq[FS_NR_RX_QUEUES];
|
|
|
|
int nchannels;
|
|
struct atm_vcc **atm_vccs;
|
|
void *tx_inuse;
|
|
int ntxpckts;
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Number of channesl that the FS50 supports. */
|
|
#define FS50_CHANNEL_BITS 5
|
|
#define FS50_NR_CHANNELS (1 << FS50_CHANNEL_BITS)
|
|
|
|
|
|
#define FS_DEV(atm_dev) ((struct fs_dev *) (atm_dev)->dev_data)
|
|
#define FS_VCC(atm_vcc) ((struct fs_vcc *) (atm_vcc)->dev_data)
|
|
|
|
|
|
#define FS_IS50 0x1
|
|
#define FS_IS155 0x2
|
|
|
|
#define IS_FS50(dev) (dev->flags & FS_IS50)
|
|
#define IS_FS155(dev) (dev->flags & FS_IS155)
|
|
|
|
/* Within limits this is user-configurable. */
|
|
/* Note: Currently the sum (10 -> 1k channels) is hardcoded in the driver. */
|
|
#define FS155_VPI_BITS 4
|
|
#define FS155_VCI_BITS 6
|
|
|
|
#define FS155_CHANNEL_BITS (FS155_VPI_BITS + FS155_VCI_BITS)
|
|
#define FS155_NR_CHANNELS (1 << FS155_CHANNEL_BITS)
|