| /*****************************************************************************/ | |
| /* | |
| * stallion.h -- stallion multiport serial driver. | |
| * | |
| * Copyright (C) 1996-1998 Stallion Technologies | |
| * Copyright (C) 1994-1996 Greg Ungerer. | |
| * | |
| * 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. | |
| */ | |
| /*****************************************************************************/ | |
| #ifndef _STALLION_H | |
| #define _STALLION_H | |
| /*****************************************************************************/ | |
| /* | |
| * Define important driver constants here. | |
| */ | |
| #define STL_MAXBRDS 4 | |
| #define STL_MAXPANELS 4 | |
| #define STL_MAXBANKS 8 | |
| #define STL_PORTSPERPANEL 16 | |
| #define STL_MAXPORTS 64 | |
| #define STL_MAXDEVS (STL_MAXBRDS * STL_MAXPORTS) | |
| /* | |
| * Define a set of structures to hold all the board/panel/port info | |
| * for our ports. These will be dynamically allocated as required. | |
| */ | |
| /* | |
| * Define a ring queue structure for each port. This will hold the | |
| * TX data waiting to be output. Characters are fed into this buffer | |
| * from the line discipline (or even direct from user space!) and | |
| * then fed into the UARTs during interrupts. Will use a classic ring | |
| * queue here for this. The good thing about this type of ring queue | |
| * is that the head and tail pointers can be updated without interrupt | |
| * protection - since "write" code only needs to change the head, and | |
| * interrupt code only needs to change the tail. | |
| */ | |
| struct stlrq { | |
| char *buf; | |
| char *head; | |
| char *tail; | |
| }; | |
| /* | |
| * Port, panel and board structures to hold status info about each. | |
| * The board structure contains pointers to structures for each panel | |
| * connected to it, and in turn each panel structure contains pointers | |
| * for each port structure for each port on that panel. Note that | |
| * the port structure also contains the board and panel number that it | |
| * is associated with, this makes it (fairly) easy to get back to the | |
| * board/panel info for a port. | |
| */ | |
| struct stlport { | |
| unsigned long magic; | |
| struct tty_port port; | |
| unsigned int portnr; | |
| unsigned int panelnr; | |
| unsigned int brdnr; | |
| int ioaddr; | |
| int uartaddr; | |
| unsigned int pagenr; | |
| unsigned long istate; | |
| int baud_base; | |
| int custom_divisor; | |
| int close_delay; | |
| int closing_wait; | |
| int openwaitcnt; | |
| int brklen; | |
| unsigned int sigs; | |
| unsigned int rxignoremsk; | |
| unsigned int rxmarkmsk; | |
| unsigned int imr; | |
| unsigned int crenable; | |
| unsigned long clk; | |
| unsigned long hwid; | |
| void *uartp; | |
| comstats_t stats; | |
| struct stlrq tx; | |
| }; | |
| struct stlpanel { | |
| unsigned long magic; | |
| unsigned int panelnr; | |
| unsigned int brdnr; | |
| unsigned int pagenr; | |
| unsigned int nrports; | |
| int iobase; | |
| void *uartp; | |
| void (*isr)(struct stlpanel *panelp, unsigned int iobase); | |
| unsigned int hwid; | |
| unsigned int ackmask; | |
| struct stlport *ports[STL_PORTSPERPANEL]; | |
| }; | |
| struct stlbrd { | |
| unsigned long magic; | |
| unsigned int brdnr; | |
| unsigned int brdtype; | |
| unsigned int state; | |
| unsigned int nrpanels; | |
| unsigned int nrports; | |
| unsigned int nrbnks; | |
| int irq; | |
| int irqtype; | |
| int (*isr)(struct stlbrd *brdp); | |
| unsigned int ioaddr1; | |
| unsigned int ioaddr2; | |
| unsigned int iosize1; | |
| unsigned int iosize2; | |
| unsigned int iostatus; | |
| unsigned int ioctrl; | |
| unsigned int ioctrlval; | |
| unsigned int hwid; | |
| unsigned long clk; | |
| unsigned int bnkpageaddr[STL_MAXBANKS]; | |
| unsigned int bnkstataddr[STL_MAXBANKS]; | |
| struct stlpanel *bnk2panel[STL_MAXBANKS]; | |
| struct stlpanel *panels[STL_MAXPANELS]; | |
| }; | |
| /* | |
| * Define MAGIC numbers used for above structures. | |
| */ | |
| #define STL_PORTMAGIC 0x5a7182c9 | |
| #define STL_PANELMAGIC 0x7ef621a1 | |
| #define STL_BOARDMAGIC 0xa2267f52 | |
| /*****************************************************************************/ | |
| #endif |