efa79eb77e
and that can be used as an identify function for all kinds of busses on a certain platform. Expect for sparc64 these are only stubs right now. [1] - For sparc64, add code to its uart_cpu_identify() for registering the on- board ISA UARTs and their resources based on information obtained from Open Firmware. It would be better if this would be done in the OFW ISA code. However, due to the common FreeBSD ISA code and PNP-IDs not always being present in the properties of the ISA nodes there seems to be no good way to implement that. Therefore special casing UARTs as the sole really relevant ISA devices on sparc64 seemed reasonable. [2] Approved by: marcel Discussed with: marcel [1], tmm [2] Tested by: make universe
122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
/*
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* Copyright (c) 2003, 2004 Marcel Moolenaar
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _DEV_UART_CPU_H_
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#define _DEV_UART_CPU_H_
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/*
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* Low-level operations for use by console and/or debug port support.
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*/
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struct uart_ops {
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int (*probe)(struct uart_bas *);
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void (*init)(struct uart_bas *, int, int, int, int);
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void (*term)(struct uart_bas *);
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void (*putc)(struct uart_bas *, int);
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int (*poll)(struct uart_bas *);
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int (*getc)(struct uart_bas *);
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};
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extern struct uart_ops uart_i8251_ops;
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extern struct uart_ops uart_ns8250_ops;
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extern struct uart_ops uart_sab82532_ops;
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extern struct uart_ops uart_z8530_ops;
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extern bus_space_tag_t uart_bus_space_io;
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extern bus_space_tag_t uart_bus_space_mem;
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/*
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* Console and debug port device info.
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*/
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struct uart_softc;
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struct uart_devinfo {
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SLIST_ENTRY(uart_devinfo) next;
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struct uart_ops ops;
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struct uart_bas bas;
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int baudrate;
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int databits;
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int stopbits;
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int parity;
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int type;
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#define UART_DEV_CONSOLE 0
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#define UART_DEV_DBGPORT 1
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#define UART_DEV_KEYBOARD 2
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int (*attach)(struct uart_softc*);
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int (*detach)(struct uart_softc*);
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void *cookie; /* Type dependent use. */
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};
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int uart_cpu_eqres(struct uart_bas *, struct uart_bas *);
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int uart_cpu_getdev(int, struct uart_devinfo *);
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int uart_getenv(int, struct uart_devinfo *);
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void uart_add_sysdev(struct uart_devinfo *);
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void uart_cpu_identify(driver_t *, device_t);
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/*
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* Operations for low-level access to the UART. Primarily for use
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* by console and debug port logic.
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*/
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static __inline int
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uart_probe(struct uart_devinfo *di)
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{
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return (di->ops.probe(&di->bas));
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}
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static __inline void
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uart_init(struct uart_devinfo *di)
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{
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di->ops.init(&di->bas, di->baudrate, di->databits, di->stopbits,
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di->parity);
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}
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static __inline void
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uart_term(struct uart_devinfo *di)
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{
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di->ops.term(&di->bas);
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}
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static __inline void
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uart_putc(struct uart_devinfo *di, int c)
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{
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di->ops.putc(&di->bas, c);
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}
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static __inline int
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uart_poll(struct uart_devinfo *di)
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{
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return (di->ops.poll(&di->bas));
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}
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static __inline int
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uart_getc(struct uart_devinfo *di)
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{
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return (di->ops.getc(&di->bas));
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}
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#endif /* _DEV_UART_CPU_H_ */
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