linux-imx

/* SPDX-License-Identifier: GPL-2.0 */

/* drivers/atm/uPD98401.h - NEC uPD98401 (SAR) declarations */

/* Written 1995 by Werner Almesberger, EPFL LRC */

​

#ifndef DRIVERS_ATM_uPD98401_H

#define DRIVERS_ATM_uPD98401_H

​

​

#define MAX_CRAM_SIZE   (1 << 18)   /* 2^18 words */

#define RAM_INCREMENT   1024        /* check in 4 kB increments */

​

#define uPD98401_PORTS  0x24        /* probably more ? */

​

​

/*

 * Commands

 */

​

#define uPD98401_OPEN_CHAN  0x20000000 /* open channel */

#define uPD98401_CHAN_ADDR  0x0003fff8 /*   channel address */

#define uPD98401_CHAN_ADDR_SHIFT 3

#define uPD98401_CLOSE_CHAN 0x24000000 /* close channel */

#define uPD98401_CHAN_RT    0x02000000 /*   RX/TX (0 TX, 1 RX) */

#define uPD98401_DEACT_CHAN 0x28000000 /* deactivate channel */

#define uPD98401_TX_READY   0x30000000 /* TX ready */

#define uPD98401_ADD_BAT    0x34000000 /* add batches */

#define uPD98401_POOL       0x000f0000 /* pool number */

#define uPD98401_POOL_SHIFT 16

#define uPD98401_POOL_NUMBAT    0x0000ffff /* number of batches */

#define uPD98401_NOP        0x3f000000 /* NOP */

#define uPD98401_IND_ACC    0x00000000 /* Indirect Access */

#define uPD98401_IA_RW      0x10000000 /*   Read/Write (0 W, 1 R) */

#define uPD98401_IA_B3      0x08000000 /*   Byte select, 1 enable */

#define uPD98401_IA_B2      0x04000000

#define uPD98401_IA_B1      0x02000000

#define uPD98401_IA_B0      0x01000000

#define uPD98401_IA_BALL    0x0f000000 /*   whole longword */

#define uPD98401_IA_TGT     0x000c0000 /*   Target */

#define uPD98401_IA_TGT_SHIFT   18

#define uPD98401_IA_TGT_CM  0      /*   - Control Memory */

#define uPD98401_IA_TGT_SAR 1      /*   - uPD98401 registers */

#define uPD98401_IA_TGT_PHY 3      /*   - PHY device */

#define uPD98401_IA_ADDR    0x0003ffff

​

/*

 * Command Register Status

 */

​

#define uPD98401_BUSY       0x80000000 /* SAR is busy */

#define uPD98401_LOCKED     0x40000000 /* SAR is locked by other CPU */

​

/*

 * Indications

 */

​

/* Normal (AAL5) Receive Indication */

#define uPD98401_AAL5_UINFO 0xffff0000 /* user-supplied information */

#define uPD98401_AAL5_UINFO_SHIFT 16

#define uPD98401_AAL5_SIZE  0x0000ffff /* PDU size (in _CELLS_ !!) */

#define uPD98401_AAL5_CHAN  0x7fff0000 /* Channel number */

#define uPD98401_AAL5_CHAN_SHIFT    16