WebSVN – HelenOS – Diff – /trunk/kernel/arch/mips32/include/drivers/serial.h


/*
 * Copyright (c) 2005 Ondrej Palkovsky
 * 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 mips32 
 * @{
 */
/** @file
 */
 
#ifndef KERN_mips32_SERIAL_H_
#define KERN_mips32_SERIAL_H_
 
#include <console/chardev.h>
 
#define SERIAL_MAX        4
#define SERIAL_COM1       0x3f8
#define SERIAL_COM1_IRQ   4
#define SERIAL_COM2       0x2f8
#define SERIAL_COM2_IRQ   3
 
#define P_WRITEB(where,what)     (*((volatile char *) (0xB8000000+where))=what)
#define P_READB(where)           (*((volatile char *)(0xB8000000+where)))
 
#define SERIAL_READ(x)           P_READB(x)
#define SERIAL_WRITE(x,c)        P_WRITEB(x,c)
/* Interrupt enable register */
#define SERIAL_READ_IER(x)              (P_READB((x) + 1))
#define SERIAL_WRITE_IER(x,c)           (P_WRITEB((x)+1,c))
/* Interrupt identification register */
#define SERIAL_READ_IIR(x)             (P_READB((x) + 2))
/* Line status register */
#define SERIAL_READ_LSR(x)             (P_READB((x) + 5))
#define TRANSMIT_EMPTY_BIT      5          
 
typedef struct {
    int port;
    int irq;
}serial_t;
 
extern void serial_console(devno_t devno);
extern int serial_init(void);
 
#endif
 
/** @}
 */
 

Rev 1936	Rev 2071
1	/*	1	/*
2	* Copyright (C) 2005 Ondrej Palkovsky	2	* Copyright (c) 2005 Ondrej Palkovsky
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 mips32	29	/** @addtogroup mips32
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#ifndef KERN_mips32_SERIAL_H_	35	#ifndef KERN_mips32_SERIAL_H_
36	#define KERN_mips32_SERIAL_H_	36	#define KERN_mips32_SERIAL_H_
37		37
38	#include <console/chardev.h>	38	#include <console/chardev.h>
39		39
40	#define SERIAL_MAX 4	40	#define SERIAL_MAX 4
41	#define SERIAL_COM1 0x3f8	41	#define SERIAL_COM1 0x3f8
42	#define SERIAL_COM1_IRQ 4	42	#define SERIAL_COM1_IRQ 4
43	#define SERIAL_COM2 0x2f8	43	#define SERIAL_COM2 0x2f8
44	#define SERIAL_COM2_IRQ 3	44	#define SERIAL_COM2_IRQ 3
45		45
46	#define P_WRITEB(where,what) (((volatile char ) (0xB8000000+where))=what)	46	#define P_WRITEB(where,what) (((volatile char ) (0xB8000000+where))=what)
47	#define P_READB(where) (((volatile char )(0xB8000000+where)))	47	#define P_READB(where) (((volatile char )(0xB8000000+where)))
48		48
49	#define SERIAL_READ(x) P_READB(x)	49	#define SERIAL_READ(x) P_READB(x)
50	#define SERIAL_WRITE(x,c) P_WRITEB(x,c)	50	#define SERIAL_WRITE(x,c) P_WRITEB(x,c)
51	/* Interrupt enable register */	51	/* Interrupt enable register */
52	#define SERIAL_READ_IER(x) (P_READB((x) + 1))	52	#define SERIAL_READ_IER(x) (P_READB((x) + 1))
53	#define SERIAL_WRITE_IER(x,c) (P_WRITEB((x)+1,c))	53	#define SERIAL_WRITE_IER(x,c) (P_WRITEB((x)+1,c))
54	/* Interrupt identification register */	54	/* Interrupt identification register */
55	#define SERIAL_READ_IIR(x) (P_READB((x) + 2))	55	#define SERIAL_READ_IIR(x) (P_READB((x) + 2))
56	/* Line status register */	56	/* Line status register */
57	#define SERIAL_READ_LSR(x) (P_READB((x) + 5))	57	#define SERIAL_READ_LSR(x) (P_READB((x) + 5))
58	#define TRANSMIT_EMPTY_BIT 5	58	#define TRANSMIT_EMPTY_BIT 5
59		59
60	typedef struct {	60	typedef struct {
61	int port;	61	int port;
62	int irq;	62	int irq;
63	}serial_t;	63	}serial_t;
64		64
65	extern void serial_console(devno_t devno);	65	extern void serial_console(devno_t devno);
66	extern int serial_init(void);	66	extern int serial_init(void);
67		67
68	#endif	68	#endif
69		69
70	/** @}	70	/** @}
71	*/	71	*/
72		72

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/mips32/include/drivers/serial.h – Rev 1936 → 2071