| 1 | /* |
|---|
| 2 | * soclib_pic.c - soclib PIC driver implementation. |
|---|
| 3 | * |
|---|
| 4 | * Author 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 PARTICULAR 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 <device.h> |
|---|
| 26 | #include <soclib_pic.h> |
|---|
| 27 | #include <soclib_xcu.h> |
|---|
| 28 | #include <errno.h> |
|---|
| 29 | #include <string.h> |
|---|
| 30 | #include <vfs.h> |
|---|
| 31 | |
|---|
| 32 | |
|---|
| 33 | ////////////////////////////////////// |
|---|
| 34 | void soclib_pic_init( xptr_t dev_xp ) |
|---|
| 35 | { |
|---|
| 36 | // get PIC device descriptor cluster and local pointer |
|---|
| 37 | cxy_t dev_cxy = GET_CXY( dev_xp ); |
|---|
| 38 | device_t * dev_ptr = (device_t *)GET_PTR( dev_xp ); |
|---|
| 39 | |
|---|
| 40 | // get extended pointer on PIC segment base from PIC device descriptor |
|---|
| 41 | xptr_t seg_xp = (xptr_t)hal_remote_lwd( XPTR( dev_cxy , &dev_ptr->base ) ); |
|---|
| 42 | |
|---|
| 43 | // get PIC controller segment cluster and local pointer |
|---|
| 44 | cxy_t seg_cxy = (cxy_t)GET_CXY( seg_xp ); |
|---|
| 45 | uint32_t * seg_ptr = (uint32_t *)GET_PTR( seg_xp ); |
|---|
| 46 | uint32_t i; |
|---|
| 47 | |
|---|
| 48 | // reset the MASK registers for all input IRQs |
|---|
| 49 | for( i = 0 ; i < CONFIG_MAX_IRQS_PER_PIC ; i++ ) |
|---|
| 50 | { |
|---|
| 51 | hal_remote_sw( XPTR( seg_cxy , seg_ptr + i*IOPIC_SPAN + IOPIC_MASK ) , 0 ); |
|---|
| 52 | } |
|---|
| 53 | } |
|---|
| 54 | |
|---|
| 55 | //////////////////////////////////////////// |
|---|
| 56 | void soclib_pic_bind_irq( xptr_t dev_xp, |
|---|
| 57 | uint32_t irq_id, |
|---|
| 58 | xptr_t xp_wti ) |
|---|
| 59 | { |
|---|
| 60 | // get PIC device descriptor cluster and local pointer |
|---|
| 61 | cxy_t dev_cxy = GET_CXY( dev_xp ); |
|---|
| 62 | device_t * dev_ptr = (device_t *)GET_PTR( dev_xp ); |
|---|
| 63 | |
|---|
| 64 | // get extended pointer on PIC segment base from PIC device descriptor |
|---|
| 65 | xptr_t seg_xp = (xptr_t)hal_remote_lwd( XPTR( dev_cxy , &dev_ptr->base ) ); |
|---|
| 66 | |
|---|
| 67 | // get PIC controller segment cluster and local pointer |
|---|
| 68 | cxy_t seg_cxy = (cxy_t)GET_CXY( seg_xp); |
|---|
| 69 | uint32_t * seg_ptr = (uint32_t *)GET_PTR( seg_xp ); |
|---|
| 70 | |
|---|
| 71 | uint32_t lsb = (uint32_t)xp_wti; |
|---|
| 72 | uint32_t msb = (uint32_t)(xp_wti>>32); |
|---|
| 73 | |
|---|
| 74 | // set the IOPIC_ADDRESS and IOPIC_EXTEND registers |
|---|
| 75 | hal_remote_sw( XPTR( seg_cxy , seg_ptr+irq_id*IOPIC_SPAN+IOPIC_ADDRESS ) , lsb ); |
|---|
| 76 | hal_remote_sw( XPTR( seg_cxy , seg_ptr+irq_id*IOPIC_SPAN+IOPIC_EXTEND ) , msb ); |
|---|
| 77 | |
|---|
| 78 | // set IOPIC_MASK register |
|---|
| 79 | hal_remote_sw( XPTR( seg_cxy , seg_ptr+irq_id*IOPIC_SPAN+IOPIC_MASK ) , 1 ); |
|---|
| 80 | } |
|---|
| 81 | |
|---|
| 82 | ////////////////////////////////////////////// |
|---|
| 83 | void soclib_pic_unbind_irq( xptr_t dev_xp, |
|---|
| 84 | uint32_t irq_id ) |
|---|
| 85 | { |
|---|
| 86 | // get PIC device descriptor cluster and local pointer |
|---|
| 87 | cxy_t dev_cxy = GET_CXY( dev_xp ); |
|---|
| 88 | device_t * dev_ptr = (device_t *)GET_PTR( dev_xp ); |
|---|
| 89 | |
|---|
| 90 | // get extended pointer on PIC segment base from PIC device descriptor |
|---|
| 91 | xptr_t seg_xp = (xptr_t)hal_remote_lwd( XPTR( dev_cxy , &dev_ptr->base ) ); |
|---|
| 92 | |
|---|
| 93 | // get PIC controller segment cluster and local pointer |
|---|
| 94 | cxy_t seg_cxy = (cxy_t)GET_CXY( seg_xp); |
|---|
| 95 | uint32_t * seg_ptr = (uint32_t *)GET_PTR( seg_xp ); |
|---|
| 96 | |
|---|
| 97 | // set IOPIC_MASK register |
|---|
| 98 | hal_remote_sw( XPTR( seg_cxy , seg_ptr+irq_id*IOPIC_SPAN+IOPIC_MASK ) , 0 ); |
|---|
| 99 | } |
|---|
| 100 | |
|---|
| 101 | ////////////////////////////////////////////// |
|---|
| 102 | void soclib_pic_get_status( xptr_t dev_xp, |
|---|
| 103 | uint32_t irq_id, |
|---|
| 104 | uint32_t * status) |
|---|
| 105 | { |
|---|
| 106 | // get PIC device descriptor cluster and local pointer |
|---|
| 107 | cxy_t dev_cxy = GET_CXY( dev_xp ); |
|---|
| 108 | device_t * dev_ptr = (device_t *)GET_PTR( dev_xp ); |
|---|
| 109 | |
|---|
| 110 | // get extended pointer on PIC segment base from PIC device descriptor |
|---|
| 111 | xptr_t seg_xp = (xptr_t)hal_remote_lwd( XPTR( dev_cxy , &dev_ptr->base ) ); |
|---|
| 112 | |
|---|
| 113 | // get PIC controller segment cluster and local pointer |
|---|
| 114 | cxy_t seg_cxy = (cxy_t)GET_CXY( seg_xp); |
|---|
| 115 | uint32_t * seg_ptr = (uint32_t *)GET_PTR( seg_xp ); |
|---|
| 116 | |
|---|
| 117 | // return status |
|---|
| 118 | *status = hal_remote_lw( XPTR( seg_cxy , seg_ptr+irq_id*IOPIC_SPAN+IOPIC_STATUS ) ); |
|---|
| 119 | } |
|---|
| 120 | |
|---|
