WebSVN – HelenOS – Diff – /trunk/uspace/rd/rd.c


/*
 * Copyright (c) 2006 Martin Decky
 * 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 rd
 * @{
 */
 
/**
 * @file    rd.c
 * @brief   Initial RAM disk for HelenOS.
 */
 
#include <ipc/ipc.h>
#include <ipc/services.h>
#include <ipc/ns.h>
#include <sysinfo.h>
#include <as.h>
#include <ddi.h>
#include <align.h>
#include <bool.h>
#include <errno.h>
#include <async.h>
 
 
static void rd_connection(ipc_callid_t iid, ipc_call_t *icall)
{
    ipc_callid_t callid;
    ipc_call_t call;
    int retval;
 
    ipc_answer_fast(iid, 0, 0, 0);
 
    while (1) {
        callid = async_get_call(&call);
        switch (IPC_GET_METHOD(call)) {
        case IPC_M_PHONE_HUNGUP:
            ipc_answer_fast(callid, 0,0,0);
            return;
        default:
            retval = EINVAL;
        }
        ipc_answer_fast(callid, retval, 0, 0);
    }  
}
 
 
static bool rd_init(void)
{
    size_t rd_size = sysinfo_value("rd.size");
    void * rd_ph_addr = (void *) sysinfo_value("rd.address.physical");
    int rd_color = (int) sysinfo_value("rd.address.color");
   
    if (rd_size == 0)
        return false;
   
    void * rd_addr = as_get_mappable_page(rd_size, rd_color);
   
    physmem_map(rd_ph_addr, rd_addr, ALIGN_UP(rd_size, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ | AS_AREA_WRITE);
   
    return true;
}
 
 
int main(int argc, char **argv)
{
    if (rd_init()) {
        ipcarg_t phonead;
       
        async_set_client_connection(rd_connection);
       
        /* Register service at nameserver */
        if (ipc_connect_to_me(PHONE_NS, SERVICE_RD, 0, &phonead) != 0)
            return -1;
       
        async_manager();
       
        /* Never reached */
        return 0;
    }
   
    return -1;
}
 
/**
 * @}
 */
 

Rev 2015	Rev 2071
1	/*	1	/*
2	* Copyright (C) 2006 Martin Decky	2	* Copyright (c) 2006 Martin Decky
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 rd	29	/** @addtogroup rd
30	* @{	30	* @{
31	*/	31	*/
32		32
33	/**	33	/**
34	* @file rd.c	34	* @file rd.c
35	* @brief Initial RAM disk for HelenOS.	35	* @brief Initial RAM disk for HelenOS.
36	*/	36	*/
37		37
38	#include <ipc/ipc.h>	38	#include <ipc/ipc.h>
39	#include <ipc/services.h>	39	#include <ipc/services.h>
40	#include <ipc/ns.h>	40	#include <ipc/ns.h>
41	#include <sysinfo.h>	41	#include <sysinfo.h>
42	#include <as.h>	42	#include <as.h>
43	#include <ddi.h>	43	#include <ddi.h>
44	#include <align.h>	44	#include <align.h>
45	#include <bool.h>	45	#include <bool.h>
46	#include <errno.h>	46	#include <errno.h>
47	#include <async.h>	47	#include <async.h>
48		48
49		49
50	static void rd_connection(ipc_callid_t iid, ipc_call_t *icall)	50	static void rd_connection(ipc_callid_t iid, ipc_call_t *icall)
51	{	51	{
52	ipc_callid_t callid;	52	ipc_callid_t callid;
53	ipc_call_t call;	53	ipc_call_t call;
54	int retval;	54	int retval;
55		55
56	ipc_answer_fast(iid, 0, 0, 0);	56	ipc_answer_fast(iid, 0, 0, 0);
57		57
58	while (1) {	58	while (1) {
59	callid = async_get_call(&call);	59	callid = async_get_call(&call);
60	switch (IPC_GET_METHOD(call)) {	60	switch (IPC_GET_METHOD(call)) {
61	case IPC_M_PHONE_HUNGUP:	61	case IPC_M_PHONE_HUNGUP:
62	ipc_answer_fast(callid, 0,0,0);	62	ipc_answer_fast(callid, 0,0,0);
63	return;	63	return;
64	default:	64	default:
65	retval = EINVAL;	65	retval = EINVAL;
66	}	66	}
67	ipc_answer_fast(callid, retval, 0, 0);	67	ipc_answer_fast(callid, retval, 0, 0);
68	}	68	}
69	}	69	}
70		70
71		71
72	static bool rd_init(void)	72	static bool rd_init(void)
73	{	73	{
74	size_t rd_size = sysinfo_value("rd.size");	74	size_t rd_size = sysinfo_value("rd.size");
75	void * rd_ph_addr = (void *) sysinfo_value("rd.address.physical");	75	void * rd_ph_addr = (void *) sysinfo_value("rd.address.physical");
76	int rd_color = (int) sysinfo_value("rd.address.color");	76	int rd_color = (int) sysinfo_value("rd.address.color");
77		77
78	if (rd_size == 0)	78	if (rd_size == 0)
79	return false;	79	return false;
80		80
81	void * rd_addr = as_get_mappable_page(rd_size, rd_color);	81	void * rd_addr = as_get_mappable_page(rd_size, rd_color);
82		82
83	physmem_map(rd_ph_addr, rd_addr, ALIGN_UP(rd_size, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ \| AS_AREA_WRITE);	83	physmem_map(rd_ph_addr, rd_addr, ALIGN_UP(rd_size, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ \| AS_AREA_WRITE);
84		84
85	return true;	85	return true;
86	}	86	}
87		87
88		88
89	int main(int argc, char **argv)	89	int main(int argc, char **argv)
90	{	90	{
91	if (rd_init()) {	91	if (rd_init()) {
92	ipcarg_t phonead;	92	ipcarg_t phonead;
93		93
94	async_set_client_connection(rd_connection);	94	async_set_client_connection(rd_connection);
95		95
96	/* Register service at nameserver */	96	/* Register service at nameserver */
97	if (ipc_connect_to_me(PHONE_NS, SERVICE_RD, 0, &phonead) != 0)	97	if (ipc_connect_to_me(PHONE_NS, SERVICE_RD, 0, &phonead) != 0)
98	return -1;	98	return -1;
99		99
100	async_manager();	100	async_manager();
101		101
102	/* Never reached */	102	/* Never reached */
103	return 0;	103	return 0;
104	}	104	}
105		105
106	return -1;	106	return -1;
107	}	107	}
108		108
109	/**	109	/**
110	* @}	110	* @}
111	*/	111	*/
112		112

Subversion Repositories HelenOS

(root)/trunk/uspace/rd/rd.c – Rev 2015 → 2071