source: trunk/kernel/devices/dev_pic.c @ 200

Last change on this file since 200 was 200, checked in by alain, 5 years ago

bloup

File size: 3.8 KB
Line 
1/*
2 * dev_pic.c - PIC (External Interrupt Controler) generic device API implementation.
3 *
4 * Authors   Alain Greiner  (2016)
5 *
6 * Copyright (c) UPMC Sorbonne Universites
7 *
8 * This file is part of ALMOS-MKH.
9 *
10 * ALMOS-MKH.is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; version 2.0 of the License.
13 *
14 * ALMOS-MKH.is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTPICLAR PURPOSE.  See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with ALMOS-MKH.; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24#include <hal_types.h>
25#include <hal_special.h>
26#include <chdev.h>
27#include <printk.h>
28#include <hal_drivers.h>
29#include <dev_pic.h>
30#include <cluster.h>
31
32/////////////////////////////////////////////////////////////////////////////////////////
33// Extern global variables
34/////////////////////////////////////////////////////////////////////////////////////////
35
36extern chdev_directory_t  chdev_dir;         // allocated in kernel_init.c
37
38///////////////////////////////////
39void dev_pic_init( chdev_t  * pic )
40{
41    // get implementation
42    uint32_t impl = pic->impl;
43
44    // set chdev name
45    strcpy( pic->name , "pic" );
46
47    // call the relevant driver init function,
48    // and register commands in PIC device extension
49    if( impl == IMPL_PIC_SCL )
50    {
51        // call the PIC SOCLIB driver
52        hal_drivers_pic_init( pic );
53    }
54    else if( impl == IMPL_PIC_I86 )
55    {
56        assert( false , __FUNCTION__ , "missing implementation for X86\n" );
57    }
58    else
59    {
60        assert( false , __FUNCTION__ , "undefined PIC device implementation" );
61    }
62} // end dev_pic_init()
63
64/////////////////////////////////////////////////
65void dev_pic_extend_init( uint32_t * lapic_base )
66{
67    // get pointer on PIC chdev
68    chdev_t * pic_ptr = (chdev_t *)GET_PTR( chdev_dir.pic );
69    cxy_t     pic_cxy = GET_CXY( chdev_dir.pic );
70
71    // get pointer on extend_init function
72    pic_init_t * f = hal_remote_lpt( XPTR( pic_cxy , &pic_ptr->ext.pic.extend_init ) ); 
73
74    // call relevant driver function
75    f( lapic_base );
76}
77
78/////////////////////////////////////
79void dev_pic_bind_irq( lid_t     lid,
80                       chdev_t * src_chdev )
81{
82    // get pointer on PIC chdev
83    chdev_t * pic = (chdev_t *)GET_PTR( chdev_dir.pic );
84
85    // call relevant driver function
86    pic->ext.pic.bind_irq( lid , src_chdev );
87} 
88
89///////////////////////////////////////
90void dev_pic_enable_irq( lid_t     lid,
91                         chdev_t * src_chdev )
92{
93    // get pointer on PIC chdev
94    chdev_t * pic = (chdev_t *)GET_PTR( chdev_dir.pic );
95
96    // call relevant driver function
97    pic->ext.pic.enable_irq( lid , src_chdev );
98}
99
100////////////////////////////////////////
101void dev_pic_disable_irq( lid_t     lid,
102                          chdev_t * src_chdev )
103{
104    // get pointer on PIC chdev
105    chdev_t * pic = (chdev_t *)GET_PTR( chdev_dir.pic );
106
107    // call relevant driver function
108    pic->ext.pic.disable_irq( lid , src_chdev );
109}
110
111////////////////////////////////////////////
112void dev_pic_enable_timer( uint32_t period )
113{
114    // get pointer on PIC chdev
115    chdev_t * pic = (chdev_t *)GET_PTR( chdev_dir.pic );
116
117    // call relevant driver function
118    pic->ext.pic.enable_timer( period );
119}
120
121//////////////////////////////////
122void dev_pic_send_ipi( cxy_t  cxy,
123                       lid_t  lid )
124{
125    // get pointer on PIC chdev
126    chdev_t * pic = (chdev_t *)GET_PTR( chdev_dir.pic );
127
128    // call relevant driver function
129    pic->ext.pic.send_ipi( cxy , lid );
130}
131
132
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