17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 77c478bd9Sstevel@tonic-gate * with the License. 87c478bd9Sstevel@tonic-gate * 97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 127c478bd9Sstevel@tonic-gate * and limitations under the License. 137c478bd9Sstevel@tonic-gate * 147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 197c478bd9Sstevel@tonic-gate * 207c478bd9Sstevel@tonic-gate * CDDL HEADER END 217c478bd9Sstevel@tonic-gate */ 227c478bd9Sstevel@tonic-gate /* 237c478bd9Sstevel@tonic-gate * Copyright (c) 1991-1998 by Sun Microsystems, Inc. 247c478bd9Sstevel@tonic-gate * All rights reserved. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate #ifndef _SYS_SER_ASYNC_H 287c478bd9Sstevel@tonic-gate #define _SYS_SER_ASYNC_H 297c478bd9Sstevel@tonic-gate 307c478bd9Sstevel@tonic-gate /* 317c478bd9Sstevel@tonic-gate * Initial port setup parameters for async lines 327c478bd9Sstevel@tonic-gate */ 337c478bd9Sstevel@tonic-gate 347c478bd9Sstevel@tonic-gate #include <sys/ksynch.h> 357c478bd9Sstevel@tonic-gate 367c478bd9Sstevel@tonic-gate #ifdef __cplusplus 377c478bd9Sstevel@tonic-gate extern "C" { 387c478bd9Sstevel@tonic-gate #endif 397c478bd9Sstevel@tonic-gate 407c478bd9Sstevel@tonic-gate /* 417c478bd9Sstevel@tonic-gate * The following macro can be used to generate the baud rate generator's 427c478bd9Sstevel@tonic-gate * time constants. The parameters are the input clock to the BRG (eg, 437c478bd9Sstevel@tonic-gate * 5000000 for 5MHz) and the desired baud rate. This macro assumes that 447c478bd9Sstevel@tonic-gate * the clock needed is 16x the desired baud rate. 457c478bd9Sstevel@tonic-gate */ 467c478bd9Sstevel@tonic-gate #define ZSTimeConst(InputClock, BaudRate) \ 477c478bd9Sstevel@tonic-gate (ushort_t)((((int)InputClock+(BaudRate*16)) \ 487c478bd9Sstevel@tonic-gate / (2*(int)(BaudRate*16))) - 2) 497c478bd9Sstevel@tonic-gate 507c478bd9Sstevel@tonic-gate #define ZSDelayConst(Hertz, FifoSize, BitsByte, BaudRate) \ 517c478bd9Sstevel@tonic-gate (ushort_t)((((int)(Hertz)*(FifoSize)*(BitsByte)) \ 527c478bd9Sstevel@tonic-gate / (int)(BaudRate)) + 1) 537c478bd9Sstevel@tonic-gate 547c478bd9Sstevel@tonic-gate #define ZSPEED(n) ZSTimeConst(PCLK, n) 557c478bd9Sstevel@tonic-gate 567c478bd9Sstevel@tonic-gate #define ZFIFOSZ 3 577c478bd9Sstevel@tonic-gate /* 58*d96925c4SRichard Lowe * This macro needs a constant 100 Hz, but hires_tick or hz may change that. 597c478bd9Sstevel@tonic-gate * ztdelay in zs_async.c converts to a true delay based on hz so we 60*d96925c4SRichard Lowe * can use 100 Hz here. 617c478bd9Sstevel@tonic-gate */ 627c478bd9Sstevel@tonic-gate #define ZDELAY(n) ZSDelayConst(100, ZFIFOSZ, NBBY, n) 637c478bd9Sstevel@tonic-gate 647c478bd9Sstevel@tonic-gate #define ISPEED B9600 657c478bd9Sstevel@tonic-gate #define ISPEED_SVID B300 667c478bd9Sstevel@tonic-gate #define IFLAGS (CS7|CREAD|PARENB) 677c478bd9Sstevel@tonic-gate #define IFLAGS_SVID (CS8|CREAD|HUPCL) 687c478bd9Sstevel@tonic-gate #define I_IFLAGS 0 697c478bd9Sstevel@tonic-gate #define I_CFLAGS ((ISPEED << IBSHIFT) | ISPEED | CS8 | CREAD | HUPCL) 707c478bd9Sstevel@tonic-gate 717c478bd9Sstevel@tonic-gate /* 727c478bd9Sstevel@tonic-gate * Ring buffer and async line management definitions for CPU lines: 737c478bd9Sstevel@tonic-gate */ 747c478bd9Sstevel@tonic-gate #ifdef _KERNEL 757c478bd9Sstevel@tonic-gate #ifndef _ASM 767c478bd9Sstevel@tonic-gate #define RINGBITS 8 /* # of bits in ring ptrs */ 777c478bd9Sstevel@tonic-gate #define RINGSIZE (1<<RINGBITS) /* size of ring */ 787c478bd9Sstevel@tonic-gate #define RINGMASK (RINGSIZE-1) 797c478bd9Sstevel@tonic-gate #define RINGFRAC 2 /* fraction of ring to force flush */ 807c478bd9Sstevel@tonic-gate 817c478bd9Sstevel@tonic-gate #define RING_INIT(zap) ((zap)->za_rput = (zap)->za_rget = 0) 827c478bd9Sstevel@tonic-gate #define RING_CNT(zap) (((zap)->za_rput - (zap)->za_rget) & RINGMASK) 837c478bd9Sstevel@tonic-gate #define RING_FRAC(zap) ((int)RING_CNT(zap) >= (int)(RINGSIZE/RINGFRAC)) 847c478bd9Sstevel@tonic-gate #define RING_POK(zap, n) ((int)RING_CNT(zap) < (int)(RINGSIZE-(n))) 857c478bd9Sstevel@tonic-gate #define RING_PUT(zap, c) \ 867c478bd9Sstevel@tonic-gate ((zap)->za_ring[(zap)->za_rput++ & RINGMASK] = (uchar_t)(c)) 877c478bd9Sstevel@tonic-gate #define RING_UNPUT(zap) ((zap)->za_rput--) 887c478bd9Sstevel@tonic-gate #define RING_GOK(zap, n) ((int)RING_CNT(zap) >= (int)(n)) 897c478bd9Sstevel@tonic-gate #define RING_GET(zap) ((zap)->za_ring[(zap)->za_rget++ & RINGMASK]) 907c478bd9Sstevel@tonic-gate #define RING_EAT(zap, n) ((zap)->za_rget += (n)) 917c478bd9Sstevel@tonic-gate 927c478bd9Sstevel@tonic-gate /* 937c478bd9Sstevel@tonic-gate * To process parity errors/breaks in-band 947c478bd9Sstevel@tonic-gate */ 957c478bd9Sstevel@tonic-gate #define SBITS 8 967c478bd9Sstevel@tonic-gate #define S_UNMARK 0x00FF 977c478bd9Sstevel@tonic-gate #define S_PARERR (0x01<<SBITS) 987c478bd9Sstevel@tonic-gate #define S_BREAK (0x02<<SBITS) 997c478bd9Sstevel@tonic-gate #define RING_MARK(zap, c, s) \ 1007c478bd9Sstevel@tonic-gate ((zap)->za_ring[(zap)->za_rput++ & RINGMASK] = ((uchar_t)(c)|(s))) 1017c478bd9Sstevel@tonic-gate #define RING_UNMARK(zap) \ 1027c478bd9Sstevel@tonic-gate ((zap)->za_ring[((zap)->za_rget) & RINGMASK] &= S_UNMARK) 1037c478bd9Sstevel@tonic-gate #define RING_ERR(zap, c) \ 1047c478bd9Sstevel@tonic-gate ((zap)->za_ring[((zap)->za_rget) & RINGMASK] & (c)) 1057c478bd9Sstevel@tonic-gate 1067c478bd9Sstevel@tonic-gate 1077c478bd9Sstevel@tonic-gate /* 1087c478bd9Sstevel@tonic-gate * These flags are shared with mcp_async.c and should be kept in sync. 1097c478bd9Sstevel@tonic-gate */ 1107c478bd9Sstevel@tonic-gate #define ZAS_WOPEN 0x00000001 /* waiting for open to complete */ 1117c478bd9Sstevel@tonic-gate #define ZAS_ISOPEN 0x00000002 /* open is complete */ 1127c478bd9Sstevel@tonic-gate #define ZAS_OUT 0x00000004 /* line being used for dialout */ 1137c478bd9Sstevel@tonic-gate #define ZAS_CARR_ON 0x00000008 /* carrier on last time we looked */ 1147c478bd9Sstevel@tonic-gate #define ZAS_STOPPED 0x00000010 /* output is stopped */ 1157c478bd9Sstevel@tonic-gate #define ZAS_DELAY 0x00000020 /* waiting for delay to finish */ 1167c478bd9Sstevel@tonic-gate #define ZAS_BREAK 0x00000040 /* waiting for break to finish */ 1177c478bd9Sstevel@tonic-gate #define ZAS_BUSY 0x00000080 /* waiting for transmission to finish */ 1187c478bd9Sstevel@tonic-gate #define ZAS_DRAINING 0x00000100 /* waiting for output to drain */ 1197c478bd9Sstevel@tonic-gate /* from chip */ 1207c478bd9Sstevel@tonic-gate #define ZAS_SERVICEIMM 0x00000200 /* queue soft interrupt as soon as */ 1217c478bd9Sstevel@tonic-gate /* receiver interrupt occurs */ 1227c478bd9Sstevel@tonic-gate #define ZAS_SOFTC_ATTN 0x00000400 /* check soft carrier state in close */ 1237c478bd9Sstevel@tonic-gate #define ZAS_PAUSED 0x00000800 /* MCP: dma interrupted and pending */ 1247c478bd9Sstevel@tonic-gate #define ZAS_LNEXT 0x00001000 /* MCP: next input char is quoted */ 1257c478bd9Sstevel@tonic-gate #define ZAS_XMIT_ACTIVE 0x00002000 /* MCP: Transmit dma running */ 1267c478bd9Sstevel@tonic-gate #define ZAS_DMA_DONE 0x00004000 /* MCP: DMA done interrupt received */ 1277c478bd9Sstevel@tonic-gate #define ZAS_ZSA_START 0x00010000 /* MCP: DMA done interrupt received */ 1287c478bd9Sstevel@tonic-gate 1297c478bd9Sstevel@tonic-gate 1307c478bd9Sstevel@tonic-gate /* 1317c478bd9Sstevel@tonic-gate * Asynchronous protocol private data structure for ZS and MCP/ALM2 1327c478bd9Sstevel@tonic-gate */ 1337c478bd9Sstevel@tonic-gate #define ZSA_MIN_RSTANDBY 12 1347c478bd9Sstevel@tonic-gate #define ZSA_MAX_RSTANDBY 256 1357c478bd9Sstevel@tonic-gate 1367c478bd9Sstevel@tonic-gate #define ZSA_RDONE_MIN 60 1377c478bd9Sstevel@tonic-gate #define ZSA_RDONE_MAX 350 1387c478bd9Sstevel@tonic-gate 1397c478bd9Sstevel@tonic-gate struct asyncline { 1407c478bd9Sstevel@tonic-gate int za_flags; /* random flags */ 1417c478bd9Sstevel@tonic-gate kcondvar_t za_flags_cv; /* condition variable for flags */ 1427c478bd9Sstevel@tonic-gate dev_t za_dev; /* device major/minor numbers */ 1437c478bd9Sstevel@tonic-gate mblk_t *za_xmitblk; /* transmit: active msg block */ 1447c478bd9Sstevel@tonic-gate mblk_t *za_rcvblk; /* receive: active msg block */ 1457c478bd9Sstevel@tonic-gate struct zscom *za_common; /* device common data */ 1467c478bd9Sstevel@tonic-gate tty_common_t za_ttycommon; /* tty driver common data */ 1477c478bd9Sstevel@tonic-gate bufcall_id_t za_wbufcid; /* id of pending write-side bufcall */ 1487c478bd9Sstevel@tonic-gate timeout_id_t za_polltid; /* softint poll timeout id */ 1497c478bd9Sstevel@tonic-gate 1507c478bd9Sstevel@tonic-gate /* 1517c478bd9Sstevel@tonic-gate * The following fields are protected by the zs_excl_hi lock. 1527c478bd9Sstevel@tonic-gate * Some, such as za_flowc, are set only at the base level and 1537c478bd9Sstevel@tonic-gate * cleared (without the lock) only by the interrupt level. 1547c478bd9Sstevel@tonic-gate */ 1557c478bd9Sstevel@tonic-gate uchar_t *za_optr; /* output pointer */ 1567c478bd9Sstevel@tonic-gate int za_ocnt; /* output count */ 1577c478bd9Sstevel@tonic-gate uchar_t za_rput; /* producing pointer for input */ 1587c478bd9Sstevel@tonic-gate uchar_t za_rget; /* consuming pointer for input */ 1597c478bd9Sstevel@tonic-gate uchar_t za_flowc; /* flow control char to send */ 1607c478bd9Sstevel@tonic-gate uchar_t za_rr0; /* status latch for break detection */ 1617c478bd9Sstevel@tonic-gate /* 1627c478bd9Sstevel@tonic-gate * Each character stuffed into the ring has two bytes associated 1637c478bd9Sstevel@tonic-gate * with it. The first byte is used to indicate special conditions 1647c478bd9Sstevel@tonic-gate * and the second byte is the actual data. The ring buffer 1657c478bd9Sstevel@tonic-gate * needs to be defined as ushort_t to accomodate this. 1667c478bd9Sstevel@tonic-gate */ 1677c478bd9Sstevel@tonic-gate ushort_t za_ring[RINGSIZE]; 1687c478bd9Sstevel@tonic-gate timeout_id_t za_kick_rcv_id; 1697c478bd9Sstevel@tonic-gate int za_kick_rcv_count; 1707c478bd9Sstevel@tonic-gate timeout_id_t za_zsa_restart_id; 1717c478bd9Sstevel@tonic-gate bufcall_id_t za_bufcid; 1727c478bd9Sstevel@tonic-gate mblk_t *za_rstandby[ZSA_MAX_RSTANDBY]; 1737c478bd9Sstevel@tonic-gate /* receive: standby message blocks */ 1747c478bd9Sstevel@tonic-gate mblk_t *za_rdone[ZSA_RDONE_MAX]; 1757c478bd9Sstevel@tonic-gate /* complete messages to be sent up */ 1767c478bd9Sstevel@tonic-gate int za_rdone_wptr; 1777c478bd9Sstevel@tonic-gate int za_rdone_rptr; 1787c478bd9Sstevel@tonic-gate int za_bad_count_int; 1797c478bd9Sstevel@tonic-gate uint_t za_rcv_flags_mask; 1807c478bd9Sstevel@tonic-gate #ifdef ZSA_DEBUG 1817c478bd9Sstevel@tonic-gate int za_wr; 1827c478bd9Sstevel@tonic-gate int za_rd; 1837c478bd9Sstevel@tonic-gate #endif 1847c478bd9Sstevel@tonic-gate volatile uchar_t za_soft_active; 1857c478bd9Sstevel@tonic-gate volatile uchar_t za_kick_active; 1867c478bd9Sstevel@tonic-gate #define DO_STOPC (1<<8) 1877c478bd9Sstevel@tonic-gate #define DO_ESC (1<<9) 1887c478bd9Sstevel@tonic-gate #define DO_SERVICEIMM (1<<10) 1897c478bd9Sstevel@tonic-gate #define DO_TRANSMIT (1<<11) 1907c478bd9Sstevel@tonic-gate #define DO_RETRANSMIT (1<<12) 1917c478bd9Sstevel@tonic-gate /* 1927c478bd9Sstevel@tonic-gate * ZS exclusive stuff. 1937c478bd9Sstevel@tonic-gate */ 1947c478bd9Sstevel@tonic-gate short za_break; /* break count */ 1957c478bd9Sstevel@tonic-gate union { 1967c478bd9Sstevel@tonic-gate struct { 1977c478bd9Sstevel@tonic-gate uchar_t _hw; /* overrun (hw) */ 1987c478bd9Sstevel@tonic-gate uchar_t _sw; /* overrun (sw) */ 1997c478bd9Sstevel@tonic-gate } _z; 2007c478bd9Sstevel@tonic-gate ushort_t uover_overrun; 2017c478bd9Sstevel@tonic-gate } za_uover; 2027c478bd9Sstevel@tonic-gate #define za_overrun za_uover.uover_overrun 2037c478bd9Sstevel@tonic-gate #define za_hw_overrun za_uover._z._hw 2047c478bd9Sstevel@tonic-gate #define za_sw_overrun za_uover._z._sw 2057c478bd9Sstevel@tonic-gate short za_ext; /* modem status change count */ 2067c478bd9Sstevel@tonic-gate short za_work; /* work to do flag */ 2077c478bd9Sstevel@tonic-gate short za_grace_flow_control; 2087c478bd9Sstevel@tonic-gate uchar_t za_do_kick_rcv_in_softint; 2097c478bd9Sstevel@tonic-gate uchar_t za_m_error; 2107c478bd9Sstevel@tonic-gate /* 2117c478bd9Sstevel@tonic-gate * MCP exclusive stuff. 2127c478bd9Sstevel@tonic-gate * These should all be protected by a high priority lock. 2137c478bd9Sstevel@tonic-gate */ 2147c478bd9Sstevel@tonic-gate uchar_t *za_xoff; /* xoff char in h/w XOFF buffer */ 2157c478bd9Sstevel@tonic-gate uchar_t za_lnext; /* treat next char as literal */ 2167c478bd9Sstevel@tonic-gate uchar_t *za_devctl; /* device control reg for this port */ 2177c478bd9Sstevel@tonic-gate uchar_t *za_dmabuf; /* dma ram buffer for this port */ 2187c478bd9Sstevel@tonic-gate int za_breakoff; /* SLAVIO */ 2197c478bd9Sstevel@tonic-gate int za_slav_break; /* SLAVIO */ 2207c478bd9Sstevel@tonic-gate /* 2217c478bd9Sstevel@tonic-gate * NTP PPS exclusive stuff. 2227c478bd9Sstevel@tonic-gate */ 2237c478bd9Sstevel@tonic-gate short za_pps; /* PPS on? */ 2247c478bd9Sstevel@tonic-gate }; 2257c478bd9Sstevel@tonic-gate 2267c478bd9Sstevel@tonic-gate #endif /* _ASM */ 2277c478bd9Sstevel@tonic-gate #endif /* _KERNEL */ 2287c478bd9Sstevel@tonic-gate 2297c478bd9Sstevel@tonic-gate #ifdef __cplusplus 2307c478bd9Sstevel@tonic-gate } 2317c478bd9Sstevel@tonic-gate #endif 2327c478bd9Sstevel@tonic-gate 2337c478bd9Sstevel@tonic-gate #endif /* !_SYS_SER_ASYNC_H */ 234