WebSVN – HelenOS – Diff – /branches/dynload/kernel/genarch/include/kbd/ns16550.h


/*
 * 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 port / keyboard driver.
 */
 
#ifndef KERN_NS16550_H_
#define KERN_NS16550_H_
 
#include <console/chardev.h> 
#include <ddi/irq.h>
#include <ipc/irq.h>
 
extern void ns16550_init(devno_t, uintptr_t, inr_t, cir_t, void *);
extern void ns16550_poll(void);
extern void ns16550_grab(void);
extern void ns16550_release(void);
extern char ns16550_key_read(chardev_t *);
extern irq_ownership_t ns16550_claim(void);
extern void ns16550_irq_handler(irq_t *, void *, ...);
 
#include <arch/types.h>
#ifndef ia64
#include <arch/drivers/kbd.h>
#endif
/* NS16550 registers */
#define RBR_REG     0   /** Receiver Buffer Register. */
#define IER_REG     1   /** Interrupt Enable Register. */
#define IIR_REG     2   /** Interrupt Ident Register (read). */
#define FCR_REG     2   /** FIFO control register (write). */
#define LCR_REG     3   /** Line Control register. */
#define MCR_REG     4   /** Modem Control Register. */
#define LSR_REG     5   /** Line Status Register. */
 
#define IER_ERBFI   0x01    /** Enable Receive Buffer Full Interrupt. */
 
#define LCR_DLAB    0x80    /** Divisor Latch Access bit. */
 
#define MCR_OUT2    0x08    /** OUT2. */
 
/** Structure representing the ns16550 device. */
typedef struct {
    devno_t devno;
    /** Memory mapped registers of the ns16550. */
    volatile ioport_t io_port;
} ns16550_t;
 
static inline uint8_t ns16550_rbr_read(ns16550_t *dev)
{
    return inb(dev->io_port + RBR_REG);
}
static inline void ns16550_rbr_write(ns16550_t *dev, uint8_t v)
{
    outb(dev->io_port + RBR_REG, v);
}
 
static inline uint8_t ns16550_ier_read(ns16550_t *dev)
{
    return inb(dev->io_port + IER_REG);
}
 
static inline void ns16550_ier_write(ns16550_t *dev, uint8_t v)
{
    outb(dev->io_port + IER_REG, v);
}
 
static inline uint8_t ns16550_iir_read(ns16550_t *dev)
{
    return inb(dev->io_port + IIR_REG);
}
 
static inline void ns16550_fcr_write(ns16550_t *dev, uint8_t v)
{
    outb(dev->io_port + FCR_REG, v);
}
 
static inline uint8_t ns16550_lcr_read(ns16550_t *dev)
{
    return inb(dev->io_port + LCR_REG);
}
 
static inline void ns16550_lcr_write(ns16550_t *dev, uint8_t v)
{
    outb(dev->io_port + LCR_REG, v);
}
 
static inline uint8_t ns16550_lsr_read(ns16550_t *dev)
{
    return inb(dev->io_port + LSR_REG);
}
 
static inline uint8_t ns16550_mcr_read(ns16550_t *dev)
{
    return inb(dev->io_port + MCR_REG);
}
 
static inline void ns16550_mcr_write(ns16550_t *dev, uint8_t v)
{
    outb(dev->io_port + MCR_REG, v);
}
 
#endif
 
/** @}
 */
 

Rev 3588	Rev 3674
1	/*	1	/*
2	* Copyright (c) 2001-2004 Jakub Jermar	2	* Copyright (c) 2001-2004 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup genarch	29	/** @addtogroup genarch
30	* @{	30	* @{
31	*/	31	*/
32	/**	32	/**
33	* @file	33	* @file
34	* @brief Headers for NS 16550 serial port / keyboard driver.	34	* @brief Headers for NS 16550 serial port / keyboard driver.
35	*/	35	*/
36		36
37	#ifndef KERN_NS16550_H_	37	#ifndef KERN_NS16550_H_
38	#define KERN_NS16550_H_	38	#define KERN_NS16550_H_
39		39
40	#include <console/chardev.h>	40	#include <console/chardev.h>
-		41	#include <ddi/irq.h>
41	#include <ipc/irq.h>	42	#include <ipc/irq.h>
42		43
43	extern void ns16550_init(devno_t devno, inr_t inr, uintptr_t vaddr);	44	extern void ns16550_init(devno_t, uintptr_t, inr_t, cir_t, void *);
44	extern void ns16550_poll(void);	45	extern void ns16550_poll(void);
45	extern void ns16550_grab(void);	46	extern void ns16550_grab(void);
46	extern void ns16550_release(void);	47	extern void ns16550_release(void);
47	extern char ns16550_key_read(chardev_t *d);	48	extern char ns16550_key_read(chardev_t *);
48	extern irq_ownership_t ns16550_claim(void);	49	extern irq_ownership_t ns16550_claim(void);
49	extern void ns16550_irq_handler(irq_t irq, void arg, ...);	50	extern void ns16550_irq_handler(irq_t , void , ...);
50		51
51	#include <arch/types.h>	52	#include <arch/types.h>
52	#ifndef ia64	53	#ifndef ia64
53	#include <arch/drivers/kbd.h>	54	#include <arch/drivers/kbd.h>
54	#endif	55	#endif
55	/* NS16550 registers */	56	/* NS16550 registers */
56	#define RBR_REG 0 /** Receiver Buffer Register. */	57	#define RBR_REG 0 /** Receiver Buffer Register. */
57	#define IER_REG 1 /** Interrupt Enable Register. */	58	#define IER_REG 1 /** Interrupt Enable Register. */
58	#define IIR_REG 2 /** Interrupt Ident Register (read). */	59	#define IIR_REG 2 /** Interrupt Ident Register (read). */
59	#define FCR_REG 2 /** FIFO control register (write). */	60	#define FCR_REG 2 /** FIFO control register (write). */
60	#define LCR_REG 3 /** Line Control register. */	61	#define LCR_REG 3 /** Line Control register. */
-		62	#define MCR_REG 4 /** Modem Control Register. */
61	#define LSR_REG 5 /** Line Status Register. */	63	#define LSR_REG 5 /** Line Status Register. */
62		64
63	#define IER_ERBFI 0x01 /** Enable Receive Buffer Full Interrupt. */	65	#define IER_ERBFI 0x01 /** Enable Receive Buffer Full Interrupt. */
64		66
65	#define LCR_DLAB 0x80 /** Divisor Latch Access bit. */	67	#define LCR_DLAB 0x80 /** Divisor Latch Access bit. */
66		68
-		69	#define MCR_OUT2 0x08 /** OUT2. */
-		70
67	/** Structure representing the ns16550 device. */	71	/** Structure representing the ns16550 device. */
68	typedef struct {	72	typedef struct {
69	devno_t devno;	73	devno_t devno;
70	volatile ioport_t io_port; /** Memory mapped registers of the ns16550. */	74	/** Memory mapped registers of the ns16550. */
-		75	volatile ioport_t io_port;
71	} ns16550_t;	76	} ns16550_t;
72		77
73	static inline uint8_t ns16550_rbr_read(ns16550_t *dev)	78	static inline uint8_t ns16550_rbr_read(ns16550_t *dev)
74	{	79	{
75	return inb(dev->io_port+RBR_REG);	80	return inb(dev->io_port + RBR_REG);
76	}	81	}
77	static inline void ns16550_rbr_write(ns16550_t *dev, uint8_t v)	82	static inline void ns16550_rbr_write(ns16550_t *dev, uint8_t v)
78	{	83	{
79	outb(dev->io_port+RBR_REG,v);	84	outb(dev->io_port + RBR_REG, v);
80	}	85	}
81		86
82	static inline uint8_t ns16550_ier_read(ns16550_t *dev)	87	static inline uint8_t ns16550_ier_read(ns16550_t *dev)
83	{	88	{
84	return inb(dev->io_port+IER_REG);	89	return inb(dev->io_port + IER_REG);
85	}	90	}
86		91
87	static inline void ns16550_ier_write(ns16550_t *dev, uint8_t v)	92	static inline void ns16550_ier_write(ns16550_t *dev, uint8_t v)
88	{	93	{
89	outb(dev->io_port+IER_REG,v);	94	outb(dev->io_port + IER_REG, v);
90	}	95	}
91		96
92	static inline uint8_t ns16550_iir_read(ns16550_t *dev)	97	static inline uint8_t ns16550_iir_read(ns16550_t *dev)
93	{	98	{
94	return inb(dev->io_port+IIR_REG);	99	return inb(dev->io_port + IIR_REG);
95	}	100	}
96		101
97	static inline void ns16550_fcr_write(ns16550_t *dev, uint8_t v)	102	static inline void ns16550_fcr_write(ns16550_t *dev, uint8_t v)
98	{	103	{
99	outb(dev->io_port+FCR_REG,v);	104	outb(dev->io_port + FCR_REG, v);
100	}	105	}
101		106
102	static inline uint8_t ns16550_lcr_read(ns16550_t *dev)	107	static inline uint8_t ns16550_lcr_read(ns16550_t *dev)
103	{	108	{
104	return inb(dev->io_port+LCR_REG);	109	return inb(dev->io_port + LCR_REG);
105	}	110	}
106		111
107	static inline void ns16550_lcr_write(ns16550_t *dev, uint8_t v)	112	static inline void ns16550_lcr_write(ns16550_t *dev, uint8_t v)
108	{	113	{
109	outb(dev->io_port+LCR_REG,v);	114	outb(dev->io_port + LCR_REG, v);
110	}	115	}
111		116
112	static inline uint8_t ns16550_lsr_read(ns16550_t *dev)	117	static inline uint8_t ns16550_lsr_read(ns16550_t *dev)
113	{	118	{
114	return inb(dev->io_port+LSR_REG);	119	return inb(dev->io_port + LSR_REG);
115	}	120	}
116		121
-		122	static inline uint8_t ns16550_mcr_read(ns16550_t *dev)
-		123	{
-		124	return inb(dev->io_port + MCR_REG);
-		125	}
117		126
-		127	static inline void ns16550_mcr_write(ns16550_t *dev, uint8_t v)
-		128	{
-		129	outb(dev->io_port + MCR_REG, v);
-		130	}
118		131
119	#endif	132	#endif
120		133
121	/** @}	134	/** @}
122	*/	135	*/
123		136

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(root)/branches/dynload/kernel/genarch/include/kbd/ns16550.h – Rev 3588 → 3674