WebSVN – HelenOS-historic – Diff – /uspace/trunk/libc/generic/ddi.c


/*
 * Copyright (C) 2006 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 libc
 * @{
 */
/** @file
 */
 
#include <ddi.h>
#include <libc.h>
#include <task.h>
#include <kernel/ddi/ddi_arg.h>
 
/** Map piece of physical memory to task.
 *
 * Caller of this function must have the CAP_MEM_MANAGER capability.
 *
 * @param pf Physical address of the starting frame.
 * @param vp Virtual address of the sterting page.
 * @param pages Number of pages to map.
 * @param flags Flags for the new address space area.
 *
 * @return 0 on success, EPERM if the caller lacks the CAP_MEM_MANAGER capability,
 *     ENOENT if there is no task with specified ID and ENOMEM if there
 *     was some problem in creating address space area.
 */
int map_physmem(void *pf, void *vp, unsigned long pages, int flags)
{
    return __SYSCALL4(SYS_MAP_PHYSMEM, (sysarg_t) pf, (sysarg_t)vp, pages, flags);
}
 
/** Enable I/O space range to task.
 *
 * Caller of this function must have the IO_MEM_MANAGER capability.
 *
 * @param id Task ID.
 * @param ioaddr Starting address of the I/O range.
 * @param size Size of the range.
 *
 * @return 0 on success, EPERM if the caller lacks the CAP_IO_MANAGER capability,
 *     ENOENT if there is no task with specified ID and ENOMEM if there
 *     was some problem in allocating memory.
 */
int iospace_enable(task_id_t id, void *ioaddr, unsigned long size)
{
 
    ddi_ioarg_t arg;
 
    arg.task_id = id;
    arg.ioaddr = ioaddr;
    arg.size = size;
 
    return __SYSCALL1(SYS_IOSPACE_ENABLE, (sysarg_t) &arg);
}
 
/** Interrupt control
 *
 * @param enable 1 - enable interrupts, 0 - disable interrupts
 */
int preemption_control(int enable)
{
    return __SYSCALL1(SYS_PREEMPT_CONTROL, (sysarg_t) enable);
}
 
 
/** @}
 */
 
 
 

Subversion Repositories HelenOS-historic

(root)/uspace/trunk/libc/generic/ddi.c – Rev 1653 → 1719

Rev 1653		Rev 1719
1	/*	1	/*
2	* Copyright (C) 2006 Jakub Jermar	2	* Copyright (C) 2006 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 libc	29	/** @addtogroup libc
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <ddi.h>	35	#include <ddi.h>
36	#include <libc.h>	36	#include <libc.h>
37	#include <task.h>	37	#include <task.h>
38	#include <kernel/ddi/ddi_arg.h>	38	#include <kernel/ddi/ddi_arg.h>
39		39
40	/** Map piece of physical memory to task.	40	/** Map piece of physical memory to task.
41	*	41	*
42	* Caller of this function must have the CAP_MEM_MANAGER capability.	42	* Caller of this function must have the CAP_MEM_MANAGER capability.
43	*	43	*
44	* @param pf Physical address of the starting frame.	44	* @param pf Physical address of the starting frame.
45	* @param vp Virtual address of the sterting page.	45	* @param vp Virtual address of the sterting page.
46	* @param pages Number of pages to map.	46	* @param pages Number of pages to map.
47	* @param flags Flags for the new address space area.	47	* @param flags Flags for the new address space area.
48	*	48	*
49	* @return 0 on success, EPERM if the caller lacks the CAP_MEM_MANAGER capability,	49	* @return 0 on success, EPERM if the caller lacks the CAP_MEM_MANAGER capability,
50	* ENOENT if there is no task with specified ID and ENOMEM if there	50	* ENOENT if there is no task with specified ID and ENOMEM if there
51	* was some problem in creating address space area.	51	* was some problem in creating address space area.
52	*/	52	*/
53	int map_physmem(void pf, void vp, unsigned long pages, int flags)	53	int map_physmem(void pf, void vp, unsigned long pages, int flags)
54	{	54	{
55	return __SYSCALL4(SYS_MAP_PHYSMEM, (sysarg_t) pf, (sysarg_t)vp, pages, flags);	55	return __SYSCALL4(SYS_MAP_PHYSMEM, (sysarg_t) pf, (sysarg_t)vp, pages, flags);
56	}	56	}
57		57
58	/** Enable I/O space range to task.	58	/** Enable I/O space range to task.
59	*	59	*
60	* Caller of this function must have the IO_MEM_MANAGER capability.	60	* Caller of this function must have the IO_MEM_MANAGER capability.
61	*	61	*
62	* @param id Task ID.	62	* @param id Task ID.
63	* @param ioaddr Starting address of the I/O range.	63	* @param ioaddr Starting address of the I/O range.
64	* @param size Size of the range.	64	* @param size Size of the range.
65	*	65	*
66	* @return 0 on success, EPERM if the caller lacks the CAP_IO_MANAGER capability,	66	* @return 0 on success, EPERM if the caller lacks the CAP_IO_MANAGER capability,
67	* ENOENT if there is no task with specified ID and ENOMEM if there	67	* ENOENT if there is no task with specified ID and ENOMEM if there
68	* was some problem in allocating memory.	68	* was some problem in allocating memory.
69	*/	69	*/
70	int iospace_enable(task_id_t id, void *ioaddr, unsigned long size)	70	int iospace_enable(task_id_t id, void *ioaddr, unsigned long size)
71	{	71	{
72	task_id_t task_id;	-
73	ddi_ioarg_t arg;	72	ddi_ioarg_t arg;
74		73
75	arg.task_id = id;	74	arg.task_id = id;
76	arg.ioaddr = ioaddr;	75	arg.ioaddr = ioaddr;
77	arg.size = size;	76	arg.size = size;
78		77
79	return __SYSCALL1(SYS_IOSPACE_ENABLE, (sysarg_t) &arg);	78	return __SYSCALL1(SYS_IOSPACE_ENABLE, (sysarg_t) &arg);
80	}	79	}
81		80
82	/** Interrupt control	81	/** Interrupt control
83	*	82	*
84	* @param enable 1 - enable interrupts, 0 - disable interrupts	83	* @param enable 1 - enable interrupts, 0 - disable interrupts
85	*/	84	*/
86	int preemption_control(int enable)	85	int preemption_control(int enable)
87	{	86	{
88	return __SYSCALL1(SYS_PREEMPT_CONTROL, (sysarg_t) enable);	87	return __SYSCALL1(SYS_PREEMPT_CONTROL, (sysarg_t) enable);
89	}	88	}
90		89
91		90
92	/** @}	91	/** @}
93	*/	92	*/
94		-
95		-
96		93