source: soft/giet_vm/giet_drivers/xcu_driver.h @ 428

Last change on this file since 428 was 320, checked in by alain, 10 years ago

All drivers have been modified to use only the information
contained in the hard_config.h file
File size: 3.7 KB
Line 
1///////////////////////////////////////////////////////////////////////////////////
2// File     : xcu_driver.h
3// Date     : 01/11/2013
4// Author   : alain greiner
5// Copyright (c) UPMC-LIP6
6///////////////////////////////////////////////////////////////////////////////////
7// The xcu_driver.c and xcu_driver.h files are part ot the GIET-VM nano-kernel.
8// This driver supports the SoCLib vci_xicu, that is a vectorised interrupt
9// controler supporting IPI (Inter Processor Interrupts) and integrated timers.
10//
11// It can exist several interrupt controller unit in the architecture
12// (one per cluster), and each one can contain several channels.
13// The number of XICU channels is equal to NB_PROCS_MAX, because there is
14// one private XICU channel per processor in a cluster.
15////////////////////////////////////////////////////////////////////////////////
16// The virtual base address of the segment associated to the component is:
17//
18//      seg_xcu_base + cluster_xy * vseg_cluster_increment
19//
20// The seg_xcu_base and vseg_cluster_increment values must be defined
21// in giet_vsegs.ld file.
22////////////////////////////////////////////////////////////////////////////////
23
24#ifndef _GIET_XCU_DRIVER_H_
25#define _GIET_XCU_DRIVER_H_
26
27///////////////////////////////////////////////////////////////////////////////////
28// XICU registers offsets
29///////////////////////////////////////////////////////////////////////////////////
30
31enum Xcu_registers
32{
33    XCU_WTI_REG = 0,
34    XCU_PTI_PER = 1,
35    XCU_PTI_VAL = 2,
36    XCU_PTI_ACK = 3,
37
38    XCU_MSK_PTI = 4,
39    XCU_MSK_PTI_ENABLE = 5,
40    XCU_MSK_PTI_DISABLE = 6,
41    XCU_PTI_ACTIVE = 6,
42
43    XCU_MSK_HWI = 8,
44    XCU_MSK_HWI_ENABLE = 9,
45    XCU_MSK_HWI_DISABLE = 10,
46    XCU_HWI_ACTIVE = 10,
47
48    XCU_MSK_WTI = 12,
49    XCU_MSK_WTI_ENABLE = 13,
50    XCU_MSK_WTI_DISABLE = 14,
51    XCU_WTI_ACTIVE = 14,
52
53    XCU_PRIO = 15,
54};
55
56#define XCU_REG(func, index) (((func)<<5)|(index))
57 
58///////////////////////////////////////////////////////////////////////////////////
59// XICU access functions
60///////////////////////////////////////////////////////////////////////////////////
61
62extern void _xcu_set_mask( unsigned int cluster_xy,
63                           unsigned int channel, 
64                           unsigned int mask, 
65                           unsigned int irq_type );
66
67extern void _xcu_get_index( unsigned int   cluster_xy, 
68                            unsigned int   channel,   
69                            unsigned int * index,
70                            unsigned int * irq_type );
71
72extern void _xcu_send_wti( unsigned int cluster_xy,
73                           unsigned int wti_index,
74                           unsigned int wdata );
75
76extern void _xcu_get_wti_value( unsigned int   cluster_xy,
77                                unsigned int   wti_index,
78                                unsigned int * value );
79
80extern void _xcu_get_wti_address( unsigned int   wti_index,
81                                  unsigned int * address );
82
83extern void _xcu_timer_start( unsigned int cluster_xy, 
84                              unsigned int pti_index,
85                              unsigned int period ); 
86
87extern void _xcu_timer_stop( unsigned int cluster_xy, 
88                             unsigned int pti_index ); 
89
90extern unsigned int _xcu_timer_reset_irq( unsigned int cluster_xy, 
91                                          unsigned int pti_index );
92
93extern void _xcu_timer_reset_cpt( unsigned int cluster_xy, 
94                                  unsigned int pti_index ); 
95
96///////////////////////////////////////////////////////////////////////////////////
97
98#endif
99
100// Local Variables:
101// tab-width: 4
102// c-basic-offset: 4
103// c-file-offsets:((innamespace . 0)(inline-open . 0))
104// indent-tabs-mode: nil
105// End:
106// vim: filetype=c:expandtab:shiftwidth=4:tabstop=4:softtabstop=4
107
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