source: trunk/kernel/devices/dev_pic.c @ 228

Last change on this file since 228 was 206, checked in by max@…, 7 years ago

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[1]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 *
[201]10 * ALMOS-MKH is free software; you can redistribute it and/or modify it
[1]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 *
[201]14 * ALMOS-MKH is distributed in the hope that it will be useful, but
[1]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
[201]20 * along with ALMOS-MKH; if not, write to the Free Software Foundation,
[1]21 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24#include <hal_types.h>
25#include <hal_special.h>
[3]26#include <chdev.h>
[1]27#include <printk.h>
[206]28#include <hal_drivers.h>
[1]29#include <dev_pic.h>
[188]30#include <cluster.h>
[1]31
32/////////////////////////////////////////////////////////////////////////////////////////
33// Extern global variables
34/////////////////////////////////////////////////////////////////////////////////////////
35
[3]36extern chdev_directory_t  chdev_dir;         // allocated in kernel_init.c
[1]37
38///////////////////////////////////
[188]39void dev_pic_init( chdev_t  * pic )
[1]40{
[201]41    // get implementation
[188]42    uint32_t impl = pic->impl;
[1]43
[23]44    // set chdev name
[188]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 )
[1]50    {
[206]51        // call the implementation-specific PIC driver
52        hal_drivers_pic_init(pic);
[1]53    }
[188]54    else if( impl == IMPL_PIC_I86 )
55    {
56        assert( false , __FUNCTION__ , "missing implementation for X86\n" );
57    }
[1]58    else
59    {
[188]60        assert( false , __FUNCTION__ , "undefined PIC device implementation" );
[1]61    }
62} // end dev_pic_init()
63
[188]64/////////////////////////////////////////////////
65void dev_pic_extend_init( uint32_t * lapic_base )
[1]66{
[188]67    // get pointer on PIC chdev
[200]68    chdev_t * pic_ptr = (chdev_t *)GET_PTR( chdev_dir.pic );
69    cxy_t     pic_cxy = GET_CXY( chdev_dir.pic );
[1]70
[200]71    // get pointer on extend_init function
[205]72    extend_init_t * f = hal_remote_lpt( XPTR( pic_cxy , &pic_ptr->ext.pic.extend_init ) ); 
[200]73
[188]74    // call relevant driver function
[200]75    f( lapic_base );
[188]76}
[1]77
[188]78/////////////////////////////////////
79void dev_pic_bind_irq( lid_t     lid,
80                       chdev_t * src_chdev )
81{
82    // get pointer on PIC chdev
[201]83    chdev_t * pic_ptr = (chdev_t *)GET_PTR( chdev_dir.pic );
84    cxy_t     pic_cxy = GET_CXY( chdev_dir.pic );
[1]85
[201]86    // get pointer on bind_irq function
[205]87    bind_irq_t * f = hal_remote_lpt( XPTR( pic_cxy , &pic_ptr->ext.pic.bind_irq ) );
[201]88
[188]89    // call relevant driver function
[201]90    f( lid , src_chdev );
91}
[1]92
[205]93/////////////////////////////////////
94void dev_pic_enable_irq( lid_t   lid,
95                         xptr_t  src_chdev_xp )
[188]96{
97    // get pointer on PIC chdev
[201]98    chdev_t * pic_ptr = (chdev_t *)GET_PTR( chdev_dir.pic );
99    cxy_t     pic_cxy = GET_CXY( chdev_dir.pic );
[1]100
[201]101    // get pointer on enable_irq function
[205]102    enable_irq_t * f = hal_remote_lpt( XPTR( pic_cxy , &pic_ptr->ext.pic.enable_irq ) );
[201]103
[188]104    // call relevant driver function
[205]105    f( lid , src_chdev_xp );
[188]106}
107
[205]108//////////////////////////////////////
109void dev_pic_disable_irq( lid_t   lid,
110                          xptr_t  src_chdev_xp )
[1]111{
[188]112    // get pointer on PIC chdev
[201]113    chdev_t * pic_ptr = (chdev_t *)GET_PTR( chdev_dir.pic );
114    cxy_t     pic_cxy = GET_CXY( chdev_dir.pic );
[1]115
[201]116    // get pointer on disable_irq function
[205]117    disable_irq_t * f = hal_remote_lpt( XPTR( pic_cxy , &pic_ptr->ext.pic.disable_irq ) );
[201]118
[188]119    // call relevant driver function
[205]120    f( lid , src_chdev_xp );
[188]121}
[1]122
[188]123////////////////////////////////////////////
124void dev_pic_enable_timer( uint32_t period )
125{
126    // get pointer on PIC chdev
[201]127    chdev_t * pic_ptr = (chdev_t *)GET_PTR( chdev_dir.pic );
128    cxy_t     pic_cxy = GET_CXY( chdev_dir.pic );
[1]129
[201]130    // get pointer on enable_timer function
[205]131    enable_timer_t * f = hal_remote_lpt( XPTR( pic_cxy , &pic_ptr->ext.pic.enable_timer ) );
[201]132
[188]133    // call relevant driver function
[201]134    f( period );
[188]135}
[1]136
[188]137//////////////////////////////////
138void dev_pic_send_ipi( cxy_t  cxy,
139                       lid_t  lid )
140{
141    // get pointer on PIC chdev
[201]142    chdev_t * pic_ptr = (chdev_t *)GET_PTR( chdev_dir.pic );
143    cxy_t     pic_cxy = GET_CXY( chdev_dir.pic );
[1]144
[201]145    // get pointer on send_ipi function
[205]146    send_ipi_t * f = hal_remote_lpt( XPTR( pic_cxy , &pic_ptr->ext.pic.send_ipi ) );
[201]147
[188]148    // call relevant driver function
[201]149    f( cxy , lid );
[188]150}
151
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