0,0 → 1,76 |
/* |
* Copyright (c) 2001-2004 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
/** @addtogroup genarch |
* @{ |
*/ |
/** |
* @file |
* @brief Headers for NS 16550 serial controller. |
*/ |
|
#ifndef KERN_NS16550_H_ |
#define KERN_NS16550_H_ |
|
#include <ddi/irq.h> |
#include <arch/types.h> |
#include <console/chardev.h> |
|
#define IER_ERBFI 0x01 /** Enable Receive Buffer Full Interrupt. */ |
|
#define LCR_DLAB 0x80 /** Divisor Latch Access bit. */ |
|
#define MCR_OUT2 0x08 /** OUT2. */ |
|
/** NS16550 registers. */ |
typedef struct { |
ioport8_t rbr; /**< Receiver Buffer Register. */ |
ioport8_t ier; /**< Interrupt Enable Register. */ |
union { |
ioport8_t iir; /**< Interrupt Ident Register (read). */ |
ioport8_t fcr; /**< FIFO control register (write). */ |
} __attribute__ ((packed)); |
ioport8_t lcr; /**< Line Control register. */ |
ioport8_t mcr; /**< Modem Control Register. */ |
ioport8_t lsr; /**< Line Status Register. */ |
} __attribute__ ((packed)) ns16550_t; |
|
/** Structure representing the ns16550 device. */ |
typedef struct { |
irq_t irq; |
ns16550_t *ns16550; |
indev_t *kbrdin; |
} ns16550_instance_t; |
|
extern ns16550_instance_t *ns16550_init(ns16550_t *, inr_t, cir_t, void *); |
extern void ns16550_wire(ns16550_instance_t *, indev_t *); |
|
#endif |
|
/** @} |
*/ |
Property changes: |
Added: svn:mergeinfo |