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_ADDRESS    0x98000000
 
#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 *) (SERIAL_ADDRESS + where)) = what)
#define P_READB(where)            (*((volatile char *) (SERIAL_ADDRESS + 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 3228	Rev 3234
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_ADDRESS 0xB8000000	40	#define SERIAL_ADDRESS 0x98000000
41		41
42	#define SERIAL_MAX 4	42	#define SERIAL_MAX 4
43	#define SERIAL_COM1 0x3f8	43	#define SERIAL_COM1 0x3f8
44	#define SERIAL_COM1_IRQ 4	44	#define SERIAL_COM1_IRQ 4
45	#define SERIAL_COM2 0x2f8	45	#define SERIAL_COM2 0x2f8
46	#define SERIAL_COM2_IRQ 3	46	#define SERIAL_COM2_IRQ 3
47		47
48	#define P_WRITEB(where, what) (((volatile char ) (SERIAL_ADDRESS + where)) = what)	48	#define P_WRITEB(where, what) (((volatile char ) (SERIAL_ADDRESS + where)) = what)
49	#define P_READB(where) (((volatile char ) (SERIAL_ADDRESS + where)))	49	#define P_READB(where) (((volatile char ) (SERIAL_ADDRESS + where)))
50		50
51	#define SERIAL_READ(x) P_READB(x)	51	#define SERIAL_READ(x) P_READB(x)
52	#define SERIAL_WRITE(x, c) P_WRITEB(x, c)	52	#define SERIAL_WRITE(x, c) P_WRITEB(x, c)
53		53
54	/* Interrupt enable register */	54	/* Interrupt enable register */
55	#define SERIAL_READ_IER(x) (P_READB((x) + 1))	55	#define SERIAL_READ_IER(x) (P_READB((x) + 1))
56	#define SERIAL_WRITE_IER(x,c) (P_WRITEB((x) + 1, c))	56	#define SERIAL_WRITE_IER(x,c) (P_WRITEB((x) + 1, c))
57		57
58	/* Interrupt identification register */	58	/* Interrupt identification register */
59	#define SERIAL_READ_IIR(x) (P_READB((x) + 2))	59	#define SERIAL_READ_IIR(x) (P_READB((x) + 2))
60		60
61	/* Line status register */	61	/* Line status register */
62	#define SERIAL_READ_LSR(x) (P_READB((x) + 5))	62	#define SERIAL_READ_LSR(x) (P_READB((x) + 5))
63	#define TRANSMIT_EMPTY_BIT 5	63	#define TRANSMIT_EMPTY_BIT 5
64		64
65	typedef struct {	65	typedef struct {
66	int port;	66	int port;
67	int irq;	67	int irq;
68	}serial_t;	68	}serial_t;
69		69
70	extern void serial_console(devno_t devno);	70	extern void serial_console(devno_t devno);
71	extern int serial_init(void);	71	extern int serial_init(void);
72		72
73	#endif	73	#endif
74		74
75	/** @}	75	/** @}
76	*/	76	*/
77		77

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/mips32/include/drivers/serial.h – Rev 3228 → 3234