diff options
Diffstat (limited to 'drivers/char/rio/phb.h')
| -rw-r--r-- | drivers/char/rio/phb.h | 293 |
1 files changed, 293 insertions, 0 deletions
diff --git a/drivers/char/rio/phb.h b/drivers/char/rio/phb.h new file mode 100644 index 0000000..e1483a0 --- /dev/null +++ b/drivers/char/rio/phb.h @@ -0,0 +1,293 @@ +/**************************************************************************** + ******* ******* + ******* P H B H E A D E R ******* + ******* ******* + **************************************************************************** + + Author : Ian Nandhra, Jeremy Rolls + Date : + + * + * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + Version : 0.01 + + + Mods + ---------------------------------------------------------------------------- + Date By Description + ---------------------------------------------------------------------------- + + ***************************************************************************/ + +#ifndef _phb_h +#define _phb_h 1 + +#ifdef SCCS_LABELS +#ifndef lint +/* static char *_rio_phb_h_sccs = "@(#)phb.h 1.12"; */ +#endif +#endif + + + /************************************************* + * Set the LIMIT values. + ************************************************/ +#ifdef RTA +#define RX_LIMIT (ushort) 3 +#endif +#ifdef HOST +#define RX_LIMIT (ushort) 1 +#endif + + +/************************************************* + * Handshake asserted. Deasserted by the LTT(s) + ************************************************/ +#define PHB_HANDSHAKE_SET ((ushort) 0x001) /* Set by LRT */ + +#define PHB_HANDSHAKE_RESET ((ushort) 0x002) /* Set by ISR / driver */ + +#define PHB_HANDSHAKE_FLAGS (PHB_HANDSHAKE_RESET | PHB_HANDSHAKE_SET) + /* Reset by ltt */ + + +/************************************************* + * Maximum number of PHB's + ************************************************/ +#if defined (HOST) || defined (INKERNEL) +#define MAX_PHB ((ushort) 128) /* range 0-127 */ +#else +#define MAX_PHB ((ushort) 8) /* range 0-7 */ +#endif + +/************************************************* + * Defines for the mode fields + ************************************************/ +#define TXPKT_INCOMPLETE 0x0001 /* Previous tx packet not completed */ +#define TXINTR_ENABLED 0x0002 /* Tx interrupt is enabled */ +#define TX_TAB3 0x0004 /* TAB3 mode */ +#define TX_OCRNL 0x0008 /* OCRNL mode */ +#define TX_ONLCR 0x0010 /* ONLCR mode */ +#define TX_SENDSPACES 0x0020 /* Send n spaces command needs + completing */ +#define TX_SENDNULL 0x0040 /* Escaping NULL needs completing */ +#define TX_SENDLF 0x0080 /* LF -> CR LF needs completing */ +#define TX_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel + port */ +#define TX_HANGOVER (TX_SENDSPACES | TX_SENDLF | TX_SENDNULL) +#define TX_DTRFLOW 0x0200 /* DTR tx flow control */ +#define TX_DTRFLOWED 0x0400 /* DTR is low - don't allow more data + into the FIFO */ +#define TX_DATAINFIFO 0x0800 /* There is data in the FIFO */ +#define TX_BUSY 0x1000 /* Data in FIFO, shift or holding regs */ + +#define RX_SPARE 0x0001 /* SPARE */ +#define RXINTR_ENABLED 0x0002 /* Rx interrupt enabled */ +#define RX_ICRNL 0x0008 /* ICRNL mode */ +#define RX_INLCR 0x0010 /* INLCR mode */ +#define RX_IGNCR 0x0020 /* IGNCR mode */ +#define RX_CTSFLOW 0x0040 /* CTSFLOW enabled */ +#define RX_IXOFF 0x0080 /* IXOFF enabled */ +#define RX_CTSFLOWED 0x0100 /* CTSFLOW and CTS dropped */ +#define RX_IXOFFED 0x0200 /* IXOFF and xoff sent */ +#define RX_BUFFERED 0x0400 /* Try and pass on complete packets */ + +#define PORT_ISOPEN 0x0001 /* Port open? */ +#define PORT_HUPCL 0x0002 /* Hangup on close? */ +#define PORT_MOPENPEND 0x0004 /* Modem open pending */ +#define PORT_ISPARALLEL 0x0008 /* Parallel port */ +#define PORT_BREAK 0x0010 /* Port on break */ +#define PORT_STATUSPEND 0x0020 /* Status packet pending */ +#define PORT_BREAKPEND 0x0040 /* Break packet pending */ +#define PORT_MODEMPEND 0x0080 /* Modem status packet pending */ +#define PORT_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel + port */ +#define PORT_FULLMODEM 0x0200 /* Full modem signals */ +#define PORT_RJ45 0x0400 /* RJ45 connector - no RI signal */ +#define PORT_RESTRICTED 0x0600 /* Restricted connector - no RI / DTR */ + +#define PORT_MODEMBITS 0x0600 /* Mask for modem fields */ + +#define PORT_WCLOSE 0x0800 /* Waiting for close */ +#define PORT_HANDSHAKEFIX 0x1000 /* Port has H/W flow control fix */ +#define PORT_WASPCLOSED 0x2000 /* Port closed with PCLOSE */ +#define DUMPMODE 0x4000 /* Dump RTA mem */ +#define READ_REG 0x8000 /* Read CD1400 register */ + + + +/************************************************************************** + * PHB Structure + * A few words. + * + * Normally Packets are added to the end of the list and removed from + * the start. The pointer tx_add points to a SPACE to put a Packet. + * The pointer tx_remove points to the next Packet to remove + *************************************************************************/ +#ifndef INKERNEL +#define src_unit u2.s2.unit +#define src_port u2.s2.port +#define dest_unit u1.s1.unit +#define dest_port u1.s1.port +#endif +#ifdef HOST +#define tx_start u3.s1.tx_start_ptr_ptr +#define tx_add u3.s1.tx_add_ptr_ptr +#define tx_end u3.s1.tx_end_ptr_ptr +#define tx_remove u3.s1.tx_remove_ptr_ptr +#define rx_start u4.s1.rx_start_ptr_ptr +#define rx_add u4.s1.rx_add_ptr_ptr +#define rx_end u4.s1.rx_end_ptr_ptr +#define rx_remove u4.s1.rx_remove_ptr_ptr +#endif +typedef struct PHB PHB ; +struct PHB { +#ifdef RTA + ushort port; +#endif +#ifdef INKERNEL + WORD source; +#else + union + { + ushort source; /* Complete source */ + struct + { + unsigned char unit; /* Source unit */ + unsigned char port; /* Source port */ + } s2; + } u2; +#endif + WORD handshake ; + WORD status ; + NUMBER timeout ; /* Maximum of 1.9 seconds */ + WORD link ; /* Send down this link */ +#ifdef INKERNEL + WORD destination; +#else + union + { + ushort destination; /* Complete destination */ + struct + { + unsigned char unit; /* Destination unit */ + unsigned char port; /* Destination port */ + } s1; + } u1; +#endif +#ifdef RTA + ushort tx_pkts_added; + ushort tx_pkts_removed; + Q_BUF_ptr tx_q_start ; /* Start of the Q list chain */ + short num_tx_q_bufs ; /* Number of Q buffers in the chain */ + PKT_ptr_ptr tx_add ; /* Add a new Packet here */ + Q_BUF_ptr tx_add_qb; /* Pointer to the add Q buf */ + PKT_ptr_ptr tx_add_st_qbb ; /* Pointer to start of the Q's buf */ + PKT_ptr_ptr tx_add_end_qbb ; /* Pointer to the end of the Q's buf */ + PKT_ptr_ptr tx_remove ; /* Remove a Packet here */ + Q_BUF_ptr tx_remove_qb ; /* Pointer to the remove Q buf */ + PKT_ptr_ptr tx_remove_st_qbb ; /* Pointer to the start of the Q buf */ + PKT_ptr_ptr tx_remove_end_qbb ; /* Pointer to the end of the Q buf */ +#endif +#ifdef INKERNEL + PKT_ptr_ptr tx_start ; + PKT_ptr_ptr tx_end ; + PKT_ptr_ptr tx_add ; + PKT_ptr_ptr tx_remove ; +#endif +#ifdef HOST + union + { + struct + { + PKT_ptr_ptr tx_start_ptr_ptr; + PKT_ptr_ptr tx_end_ptr_ptr; + PKT_ptr_ptr tx_add_ptr_ptr; + PKT_ptr_ptr tx_remove_ptr_ptr; + } s1; + struct + { + ushort * tx_start_ptr; + ushort * tx_end_ptr; + ushort * tx_add_ptr; + ushort * tx_remove_ptr; + } s2; + } u3; +#endif + +#ifdef RTA + ushort rx_pkts_added; + ushort rx_pkts_removed; + Q_BUF_ptr rx_q_start ; /* Start of the Q list chain */ + short num_rx_q_bufs ; /* Number of Q buffers in the chain */ + PKT_ptr_ptr rx_add ; /* Add a new Packet here */ + Q_BUF_ptr rx_add_qb ; /* Pointer to the add Q buf */ + PKT_ptr_ptr rx_add_st_qbb ; /* Pointer to start of the Q's buf */ + PKT_ptr_ptr rx_add_end_qbb ; /* Pointer to the end of the Q's buf */ + PKT_ptr_ptr rx_remove ; /* Remove a Packet here */ + Q_BUF_ptr rx_remove_qb ; /* Pointer to the remove Q buf */ + PKT_ptr_ptr rx_remove_st_qbb ; /* Pointer to the start of the Q buf */ + PKT_ptr_ptr rx_remove_end_qbb ; /* Pointer to the end of the Q buf */ +#endif +#ifdef INKERNEL + PKT_ptr_ptr rx_start ; + PKT_ptr_ptr rx_end ; + PKT_ptr_ptr rx_add ; + PKT_ptr_ptr rx_remove ; +#endif +#ifdef HOST + union + { + struct + { + PKT_ptr_ptr rx_start_ptr_ptr; + PKT_ptr_ptr rx_end_ptr_ptr; + PKT_ptr_ptr rx_add_ptr_ptr; + PKT_ptr_ptr rx_remove_ptr_ptr; + } s1; + struct + { + ushort * rx_start_ptr; + ushort * rx_end_ptr; + ushort * rx_add_ptr; + ushort * rx_remove_ptr; + } s2; + } u4; +#endif + +#ifdef RTA /* some fields for the remotes */ + ushort flush_count; /* Count of write flushes */ + ushort txmode; /* Modes for tx */ + ushort rxmode; /* Modes for rx */ + ushort portmode; /* Generic modes */ + ushort column; /* TAB3 column count */ + ushort tx_subscript; /* (TX) Subscript into data field */ + ushort rx_subscript; /* (RX) Subscript into data field */ + PKT_ptr rx_incomplete; /* Hold an incomplete packet here */ + ushort modem_bits; /* Modem bits to mask */ + ushort lastModem; /* Modem control lines. */ + ushort addr; /* Address for sub commands */ + ushort MonitorTstate; /* TRUE if monitoring tstop */ +#endif + + } ; + +#endif + +/*********** end of file ***********/ + |
