[3] | 1 | /* |
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[647] | 2 | * dev_fbf.c - FBF (Frame Buffer) generic device API implementation. |
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[3] | 3 | * |
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[657] | 4 | * Author Alain Greiner (2016,2017,2018,2019,2020) |
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[3] | 5 | * |
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| 6 | * Copyright (c) UPMC Sorbonne Universites |
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| 7 | * |
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| 8 | * This file is part of ALMOS-MK |
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| 9 | * |
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| 10 | * ALMOS-MKH.is free software; you can redistribute it and/or modify it |
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| 11 | * under the terms of the GNU General Public License as published by |
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| 12 | * the Free Software Foundation; version 2.0 of the License. |
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| 13 | * |
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| 14 | * ALMOS-MKH.is distributed in the hope that it will be useful, but |
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| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 17 | * General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with ALMOS-kernel; if not, write to the Free Software Foundation, |
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| 21 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 22 | */ |
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| 23 | |
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[14] | 24 | #include <kernel_config.h> |
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[457] | 25 | #include <hal_kernel_types.h> |
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[3] | 26 | #include <hal_gpt.h> |
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[647] | 27 | #include <hal_drivers.h> |
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[657] | 28 | #include <hal_irqmask.h> |
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| 29 | #include <hal_macros.h> |
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| 30 | #include <hal_uspace.h> |
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| 31 | #include <hal_vmm.h> |
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[3] | 32 | #include <thread.h> |
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| 33 | #include <printk.h> |
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[422] | 34 | #include <string.h> |
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[657] | 35 | #include <memcpy.h> |
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[3] | 36 | #include <chdev.h> |
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| 37 | #include <dev_fbf.h> |
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| 38 | |
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| 39 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 40 | // Extern global variables |
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| 41 | ///////////////////////////////////////////////////////////////////////////////////////// |
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| 42 | |
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| 43 | extern chdev_directory_t chdev_dir; // allocated in kernel_init.c |
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| 44 | |
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[647] | 45 | /////////////////////////////////////////// |
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| 46 | char * dev_fbf_cmd_str( uint32_t cmd_type ) |
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| 47 | { |
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[657] | 48 | if ( cmd_type == FBF_GET_CONFIG ) return "GET_CONFIG"; |
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| 49 | else if( cmd_type == FBF_CREATE_WINDOW ) return "CREATE_WINDOW"; |
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[674] | 50 | else if( cmd_type == FBF_ACTIVE_WINDOW ) return "ACTIVE_WINDOW"; |
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[657] | 51 | else if( cmd_type == FBF_DELETE_WINDOW ) return "DELETE_WINDOW"; |
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| 52 | else if( cmd_type == FBF_MOVE_WINDOW ) return "MOVE_WINDOW"; |
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| 53 | else if( cmd_type == FBF_REFRESH_WINDOW ) return "REFRESH_WINDOW"; |
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[674] | 54 | else if( cmd_type == FBF_FRONT_WINDOW ) return "FRONT_WINDOW"; |
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| 55 | else if( cmd_type == FBF_RESIZE_WINDOW ) return "RESIZE_WINDOW"; |
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| 56 | |
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[657] | 57 | else if( cmd_type == FBF_DIRECT_WRITE ) return "DIRECT_WRITE"; |
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| 58 | else if( cmd_type == FBF_DIRECT_READ ) return "DIRECT_READ"; |
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| 59 | else return "undefined"; |
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[647] | 60 | } |
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| 61 | |
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[674] | 62 | //////////////////////////////////////////////// |
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| 63 | xptr_t dev_fbf_get_xptr_from_wid( uint32_t wid ) |
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| 64 | { |
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| 65 | thread_t * this = CURRENT_THREAD; |
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| 66 | pid_t pid = this->process->pid; |
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| 67 | trdid_t trdid = this->trdid; |
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| 68 | |
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| 69 | // get cluster and pointers on FBF chdev |
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| 70 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
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| 71 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
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| 72 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
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| 73 | |
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| 74 | // build extended pointer on windows_tbl[wid] |
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| 75 | xptr_t entry_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_tbl[wid] ); |
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| 76 | |
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| 77 | // get pointers on searched window |
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| 78 | xptr_t window_xp = hal_remote_l64( entry_xp ); |
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| 79 | cxy_t window_cxy = GET_CXY( window_xp ); |
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| 80 | fbf_window_t * window_ptr = GET_PTR( window_xp ); |
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| 81 | |
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| 82 | if( window_xp == XPTR_NULL ) |
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| 83 | { |
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| 84 | printk("\n[ERROR] in %s / client thread[%x,%x] request a non registered wid (%d)\n", |
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| 85 | __FUNCTION__, pid, trdid, wid ); |
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| 86 | return XPTR_NULL; |
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| 87 | } |
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| 88 | |
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| 89 | // get owner process PID from window descriptor |
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| 90 | pid_t owner_pid = hal_remote_l32( XPTR( window_cxy , &window_ptr->pid ) ); |
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| 91 | |
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| 92 | if( pid != owner_pid ) |
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| 93 | { |
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| 94 | printk("\n[ERROR] in %s / client thread[%x,%x] not owner of wid (%d) / owner is (%x)\n", |
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| 95 | __FUNCTION__, pid, trdid, owner_pid, wid ); |
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| 96 | return XPTR_NULL; |
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| 97 | } |
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| 98 | |
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| 99 | return window_xp; |
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| 100 | |
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| 101 | } // end dev_fbf_get_xptr_from_wid() |
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| 102 | |
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[3] | 103 | //////////////////////////////////// |
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[647] | 104 | void dev_fbf_init( chdev_t * fbf ) |
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[3] | 105 | { |
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[657] | 106 | uint32_t wid; |
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| 107 | |
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[23] | 108 | // set chdev name |
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[647] | 109 | strcpy( fbf->name, "fbf" ); |
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[188] | 110 | |
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[657] | 111 | // initialize lock protecting the windows |
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| 112 | remote_rwlock_init( XPTR( local_cxy , &fbf->ext.fbf.windows_lock ), |
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| 113 | LOCK_FBF_WINDOWS ); |
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| 114 | |
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| 115 | // initialize root of windows xlist |
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| 116 | xlist_root_init( XPTR( local_cxy , &fbf->ext.fbf.windows_root ) ); |
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| 117 | |
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| 118 | // initialize windows_tbl[] array |
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| 119 | for( wid = 0 ; wid < CONFIG_FBF_WINDOWS_MAX_NR ; wid++ ) |
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| 120 | { |
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| 121 | fbf->ext.fbf.windows_tbl[wid] = XPTR_NULL; |
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| 122 | } |
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| 123 | |
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| 124 | // initialize wid allocator bitmap |
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| 125 | bitmap_init( fbf->ext.fbf.windows_bitmap , CONFIG_FBF_WINDOWS_MAX_NR ); |
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| 126 | |
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| 127 | // call driver init function to initialize the harware FBF |
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| 128 | // and initialize the width, height, and subsampling FBF chdev fields |
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[647] | 129 | hal_drivers_fbf_init( fbf ); |
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[3] | 130 | |
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| 131 | } // end dev_fbf_init() |
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| 132 | |
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[647] | 133 | ////////////////////////////////////////// |
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| 134 | void dev_fbf_get_config( uint32_t * width, |
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| 135 | uint32_t * height, |
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| 136 | uint32_t * type ) |
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[3] | 137 | { |
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| 138 | // get extended pointer on FBF chdev descriptor |
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| 139 | xptr_t dev_xp = chdev_dir.fbf[0]; |
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| 140 | |
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[674] | 141 | assert( __FUNCTION__, (dev_xp != XPTR_NULL) , "undefined FBF chdev descriptor" ); |
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[3] | 142 | |
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| 143 | // get FBF chdev cluster and local pointer |
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| 144 | cxy_t dev_cxy = GET_CXY( dev_xp ); |
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| 145 | chdev_t * dev_ptr = (chdev_t *)GET_PTR( dev_xp ); |
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| 146 | |
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| 147 | // return values |
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[565] | 148 | *width = hal_remote_l32( XPTR( dev_cxy , &dev_ptr->ext.fbf.width ) ); |
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| 149 | *height = hal_remote_l32( XPTR( dev_cxy , &dev_ptr->ext.fbf.height ) ); |
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[647] | 150 | *type = hal_remote_l32( XPTR( dev_cxy , &dev_ptr->ext.fbf.subsampling ) ); |
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[3] | 151 | |
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[647] | 152 | } // end dev_fbf_get_config() |
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[3] | 153 | |
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[674] | 154 | ///////////////////////////////////////////////// |
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[657] | 155 | uint32_t dev_fbf_create_window( uint32_t nlines, |
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| 156 | uint32_t npixels, |
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| 157 | uint32_t l_min, |
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| 158 | uint32_t p_min, |
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| 159 | intptr_t * user_buffer ) |
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| 160 | { |
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| 161 | fbf_window_t * window; // window descriptor (created in local cluster) |
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| 162 | vseg_t * vseg; // vseg descriptor (created in reference cluster) |
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| 163 | intptr_t vseg_base; // vseg base address in user space |
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| 164 | |
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| 165 | // get local pointers on calling thread and process |
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| 166 | thread_t * this = CURRENT_THREAD; |
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| 167 | process_t * process = this->process; |
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| 168 | |
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| 169 | #if DEBUG_DEV_FBF |
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| 170 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 171 | if( DEBUG_DEV_FBF < cycle ) |
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| 172 | printk("\n[%s] thread[%x,%x] enter : nlines %d / npixels %d / l_min %d / p_min %d / cycle %d\n", |
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| 173 | __FUNCTION__ , process->pid, this->trdid, nlines, npixels, l_min, p_min, cycle ); |
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| 174 | #endif |
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| 175 | |
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| 176 | // get cluster and pointers on FBF chdev |
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| 177 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
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| 178 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
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| 179 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
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| 180 | |
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| 181 | // check fbf_xp definition |
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[674] | 182 | assert( __FUNCTION__, (fbf_xp != XPTR_NULL) , "undefined FBF chdev descriptor" ); |
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[657] | 183 | |
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| 184 | // get FBF width and height |
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| 185 | uint32_t fbf_width = hal_remote_l32( XPTR( fbf_cxy , &fbf_ptr->ext.fbf.width ) ); |
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| 186 | uint32_t fbf_height = hal_remote_l32( XPTR( fbf_cxy , &fbf_ptr->ext.fbf.height ) ); |
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| 187 | |
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| 188 | // check new window size and coordinates |
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| 189 | if( (((l_min + nlines) > fbf_height) || ((p_min + npixels) > fbf_width)) ) |
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| 190 | { |
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| 191 | printk("\n[ERROR] in %s / thread[%x,%x]" |
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| 192 | "illegal new coordinates (%d,%d) for window (%d,%d) in fbf (%d,%d)\n", |
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| 193 | process->pid, this->trdid, p_min, l_min, npixels, nlines, fbf_width, fbf_height ); |
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| 194 | return -1; |
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| 195 | } |
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| 196 | |
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| 197 | // build extended pointers on windows lock, root, and wid allocator |
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| 198 | xptr_t windows_lock_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_lock ); |
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| 199 | xptr_t windows_root_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_root ); |
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| 200 | xptr_t windows_bitmap_xp = XPTR( fbf_cxy , fbf_ptr->ext.fbf.windows_bitmap ); |
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| 201 | |
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| 202 | // allocate memory for the window descriptor in local cluster |
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[683] | 203 | window = kmem_alloc( bits_log2(sizeof(fbf_window_t)) , AF_ZERO ); |
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[657] | 204 | |
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| 205 | if( window == NULL ) |
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| 206 | { |
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| 207 | printk("\n[ERROR] in %s / thread[%x,%x] cannot allocate window descriptor\n", |
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| 208 | __FUNCTION__, process->pid, this->trdid ); |
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| 209 | return -1; |
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| 210 | } |
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| 211 | |
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| 212 | #if (DEBUG_DEV_FBF & 1) |
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| 213 | cycle = (uint32_t)hal_get_cycles(); |
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| 214 | if( DEBUG_DEV_FBF < cycle ) |
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| 215 | printk("\n[%s] thread[%x,%x] created window descriptor %x / cycle %d\n", |
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| 216 | __FUNCTION__ , process->pid, this->trdid, window, cycle ); |
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| 217 | #endif |
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| 218 | |
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| 219 | // getpointers on reference process |
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| 220 | xptr_t ref_xp = process->ref_xp; |
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| 221 | process_t * ref_ptr = GET_PTR( ref_xp ); |
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| 222 | cxy_t ref_cxy = GET_CXY( ref_xp ); |
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| 223 | |
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| 224 | // allocate a new vseg, and introduce it in the reference process VSL |
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| 225 | if( ref_cxy == local_cxy ) |
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| 226 | { |
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| 227 | vseg = vmm_create_vseg( process, // owner process |
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| 228 | VSEG_TYPE_ANON, // localised, public |
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| 229 | 0, // base, unused for ANON |
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| 230 | nlines * npixels, // size |
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| 231 | 0, // file_offset, unused for ANON |
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| 232 | 0, // file_size, unused for ANON |
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| 233 | XPTR_NULL, // mapper_xp, unused for ANON |
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| 234 | local_cxy ); // mapping cluster |
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| 235 | } |
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| 236 | else |
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| 237 | { |
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| 238 | rpc_vmm_create_vseg_client( ref_cxy, |
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| 239 | ref_ptr, |
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| 240 | VSEG_TYPE_ANON, |
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| 241 | 0, // base, unused for ANON |
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| 242 | nlines * npixels, // size |
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| 243 | 0, // file_offset, unused for ANON |
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| 244 | 0, // file size, unused for ANON |
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| 245 | XPTR_NULL, // mapper_xp, unused for ANON |
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| 246 | local_cxy, |
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| 247 | &vseg ); |
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| 248 | } |
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| 249 | |
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| 250 | if( vseg == NULL ) |
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| 251 | { |
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| 252 | printk("\n[ERROR] in %s / thread[%x,%x] cannot create vseg in reference cluster\n", |
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| 253 | __FUNCTION__, process->pid, this->trdid ); |
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[683] | 254 | kmem_free( window , bits_log2(sizeof(fbf_window_t)) ); |
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[657] | 255 | return -1; |
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| 256 | } |
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| 257 | |
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| 258 | // get vseg base |
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| 259 | vseg_base = (intptr_t)hal_remote_lpt( XPTR( ref_cxy , &vseg->min ) ); |
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| 260 | |
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| 261 | #if (DEBUG_DEV_FBF & 1) |
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| 262 | cycle = (uint32_t)hal_get_cycles(); |
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| 263 | if( DEBUG_DEV_FBF < cycle ) |
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| 264 | printk("\n[%s] thread[%x,%x] allocated vseg / base %x / cycle %d\n", |
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| 265 | __FUNCTION__ , process->pid, this->trdid, vseg_base, cycle ); |
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| 266 | #endif |
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| 267 | |
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| 268 | // take the lock protecting windows in write mode |
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| 269 | remote_rwlock_wr_acquire( windows_lock_xp ); |
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| 270 | |
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| 271 | // allocate a wid from allocator in FBF descriptor extension |
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| 272 | uint32_t wid = bitmap_remote_alloc( windows_bitmap_xp , CONFIG_FBF_WINDOWS_MAX_NR ); |
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| 273 | |
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| 274 | if( wid == 0xFFFFFFFF ) |
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| 275 | { |
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| 276 | printk("\n[ERROR] in %s / thread[%x,%x] cannot allocate buffer for window\n", |
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| 277 | __FUNCTION__, process->pid, this->trdid ); |
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[683] | 278 | kmem_free( window , bits_log2(sizeof(fbf_window_t)) ); |
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[657] | 279 | vmm_remove_vseg( process , vseg ); |
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| 280 | return -1; |
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| 281 | } |
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| 282 | |
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| 283 | // initialize window descriptor |
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| 284 | window->pid = process->pid; |
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| 285 | window->wid = wid; |
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| 286 | window->height = nlines; |
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| 287 | window->width = npixels; |
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| 288 | window->l_min = l_min; |
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| 289 | window->p_min = p_min; |
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[674] | 290 | window->hidden = true; |
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[657] | 291 | window->buffer = (uint8_t *)vseg_base; |
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| 292 | |
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| 293 | // register new window in xlist rooted in FBF extension |
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| 294 | xlist_add_last( windows_root_xp , XPTR( local_cxy , &window->xlist ) ); |
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| 295 | |
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| 296 | // build extended pointer on relevant entry in windows_tbl[] array |
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| 297 | xptr_t windows_tbl_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_tbl[wid] ); |
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| 298 | |
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| 299 | // register new window in windows_tbl[] stored in FBF extension |
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| 300 | hal_remote_s64( windows_tbl_xp , XPTR( local_cxy , window ) ); |
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| 301 | |
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| 302 | // release the lock protecting windows in write mode |
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| 303 | remote_rwlock_wr_release( windows_lock_xp ); |
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| 304 | |
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| 305 | #if DEBUG_DEV_FBF |
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| 306 | cycle = (uint32_t)hal_get_cycles(); |
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| 307 | if( DEBUG_DEV_FBF < cycle ) |
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| 308 | printk("\n[%s] thread[%x,%x] exit / wid %d / buffer %x / cycle %d\n", |
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| 309 | __FUNCTION__ , this->process->pid, this->trdid, wid , window->buffer, cycle ); |
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| 310 | #endif |
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| 311 | |
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| 312 | // return pointer on allocated buffer |
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| 313 | *user_buffer = vseg_base; |
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| 314 | |
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| 315 | return wid; |
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| 316 | |
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| 317 | } // end dev_fbf_create_window() |
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| 318 | |
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[674] | 319 | ///////////////////////////////////////////// |
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| 320 | error_t dev_fbf_active_window( uint32_t wid, |
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| 321 | uint32_t active ) |
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[657] | 322 | { |
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| 323 | |
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[674] | 324 | #if DEBUG_DEV_FBF |
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| 325 | thread_t * thi = CURRENT_THREAD; |
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| 326 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 327 | if( DEBUG_DEV_FBF < cycle ) |
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| 328 | printk("\n[%s] thread[%x,%x] enters : wid %d / active %d / cycle %d\n", |
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| 329 | __FUNCTION__ , this->process->pid, this->trdid, wid, active, cycle ); |
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| 330 | #endif |
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[657] | 331 | |
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[674] | 332 | // get extended pointer on window to be activated |
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| 333 | xptr_t window_xp = dev_fbf_get_xptr_from_wid( wid ); |
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[657] | 334 | |
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[674] | 335 | if( window_xp == XPTR_NULL ) return -1; |
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[657] | 336 | |
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[674] | 337 | // get cluster and local pointer on target window |
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| 338 | cxy_t window_cxy = GET_CXY( window_xp ); |
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| 339 | fbf_window_t * window_ptr = GET_PTR( window_xp ); |
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[657] | 340 | |
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[674] | 341 | // set/reset hidden flag in window descriptor |
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| 342 | hal_remote_s32( XPTR( window_cxy , &window_ptr->hidden ) , (active == 0) ? 1 : 0 ); |
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[657] | 343 | |
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[674] | 344 | #if DEBUG_DEV_FBF |
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| 345 | cycle = (uint32_t)hal_get_cycles(); |
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| 346 | if( DEBUG_DEV_FBF < cycle ) |
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| 347 | printk("\n[%s] thread[%x,%x] exit / cycle %d\n", |
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| 348 | __FUNCTION__ , this->process->pid, this->trdid, cycle ); |
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| 349 | #endif |
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[657] | 350 | |
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[674] | 351 | return 0; |
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[657] | 352 | |
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[674] | 353 | } // end dev_fbf_active_window() |
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[657] | 354 | |
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| 355 | //////////////////////////////////////////////////////////////////////////////////////// |
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| 356 | // This static function is called by dev_fbf_refresh_window(), dev_fbf_move_window(), |
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[674] | 357 | // dev_fbf_front_window(), dev_fbf_delete_window(), and dev_fbf_resize_window(). |
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| 358 | // It updates all lines of a pseudo window identified by the <p_min>, <p_max>, <l_min>, |
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| 359 | // and <l_max> arguments, that are dynamically computed by the caller. |
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| 360 | // This function scan all registered windows to take into account the overlap priorities |
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| 361 | // defined by the FBF xlist of windows. It takes the lock protecting xlist in read mode. |
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[657] | 362 | //////////////////////////////////////////////////////////////////////////////////////// |
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[674] | 363 | // Implementation Note: |
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| 364 | // This function contains two loops. |
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| 365 | // - the external loop builds one line of the pseudo window per iteraiion in a local |
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| 366 | // line_buffer. One line contains [p_max - p_min] pixels. Then, it calls the FBF |
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| 367 | // driver (one driver call per line) to write this line into the Frame Buffer. |
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| 368 | // - the internal loop scan the list of the registered windows in increasing priority, |
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| 369 | // and for each registered window that has a non empty intersection with the handled |
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| 370 | // line, it updates the line_buffer, using the hal_copy_from_uspace() function |
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| 371 | // to get the most up-to-date user-defined data. |
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[657] | 372 | //////////////////////////////////////////////////////////////////////////////////////// |
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[674] | 373 | // @ p_min : [in] upper left corner X coordinate in FBF reference |
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| 374 | // @ p_max : [in] upper left corner Y coordinate in FBF reference. |
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| 375 | // @ l_min : [in] lower right corner X coordinate in FBF reference (excluded). |
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| 376 | // @ l_max : [in] lower right corner Y coordinate in FBF reference (excluded). |
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| 377 | //////////////////////////////////////////////////////////////////////////////////////// |
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| 378 | error_t fbf_update( uint32_t p_min, |
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| 379 | uint32_t l_min, |
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| 380 | uint32_t p_max, |
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| 381 | uint32_t l_max ) |
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[657] | 382 | { |
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[674] | 383 | uint32_t line; // iterator to scan the FBF lines |
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| 384 | uint32_t pixel; // iterator to scan pixels in one FBF line |
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| 385 | xptr_t iter_xp; // iterator to scan the list of windows |
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[657] | 386 | error_t error; |
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| 387 | |
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[674] | 388 | // this intermediate buffer to build one pseudo-window line |
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| 389 | uint8_t line_buffer[CONFIG_FBF_WINDOWS_MAX_WIDTH]; |
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[657] | 390 | |
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| 391 | // get pointer on calling thread and core lid |
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| 392 | thread_t * this = CURRENT_THREAD; |
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| 393 | |
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| 394 | #if DEBUG_DEV_FBF |
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| 395 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
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| 396 | if( DEBUG_DEV_FBF < cycle ) |
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[674] | 397 | printk("\n[%s] enter : p_min %d / l_min %d / p_max %d / l_max %d / cycle %d\n", |
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| 398 | __FUNCTION__, p_min, l_min, p_max, l_max, cycle ); |
---|
[657] | 399 | #endif |
---|
| 400 | |
---|
| 401 | // get pointers on FBF chdev |
---|
| 402 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
---|
| 403 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
---|
| 404 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
---|
| 405 | |
---|
[674] | 406 | // get frame buffer width and height |
---|
[657] | 407 | uint32_t fbf_width = hal_remote_l32( XPTR( fbf_cxy , &fbf_ptr->ext.fbf.width ) ); |
---|
[674] | 408 | uint32_t fbf_height = hal_remote_l32( XPTR( fbf_cxy , &fbf_ptr->ext.fbf.height ) ); |
---|
[657] | 409 | |
---|
[674] | 410 | // check arguments |
---|
| 411 | assert( __FUNCTION__, (p_min < fbf_width) && (p_max <= fbf_width) && |
---|
| 412 | (l_min < fbf_height) && (l_max <= fbf_height) , "illegal arguments" ); |
---|
| 413 | |
---|
[657] | 414 | // get pointer on driver command function |
---|
| 415 | dev_cmd_t * cmd = hal_remote_lpt( XPTR( fbf_cxy , &fbf_ptr->cmd ) ); |
---|
| 416 | |
---|
[674] | 417 | // build extended pointers on windows xlist root and lock |
---|
[657] | 418 | xptr_t windows_root_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_root ); |
---|
[674] | 419 | xptr_t windows_lock_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_lock ); |
---|
[657] | 420 | |
---|
| 421 | error = 0; |
---|
| 422 | |
---|
[674] | 423 | // 1. external loop on pseudo window lines (in FBF reference) |
---|
| 424 | for( line = l_min ; line < l_max ; line++ ) |
---|
[657] | 425 | { |
---|
| 426 | // reset the line buffer to default value |
---|
[674] | 427 | for( pixel = 0 ; pixel < (p_max - p_min) ; pixel++ ) line_buffer[pixel] = 127; |
---|
[657] | 428 | |
---|
[674] | 429 | // take the lock in read mode |
---|
| 430 | remote_rwlock_rd_acquire( windows_lock_xp ); |
---|
| 431 | |
---|
| 432 | // 2. internal loop on all registered windows |
---|
[657] | 433 | XLIST_FOREACH( windows_root_xp , iter_xp ) |
---|
| 434 | { |
---|
[674] | 435 | // get pointers on current target window |
---|
[657] | 436 | xptr_t tgt_xp = XLIST_ELEMENT( iter_xp , fbf_window_t , xlist ); |
---|
[674] | 437 | fbf_window_t * tgt_ptr = GET_PTR( tgt_xp ); |
---|
| 438 | cxy_t tgt_cxy = GET_CXY( tgt_xp ); |
---|
[657] | 439 | |
---|
[674] | 440 | // get target window min and max coordinates in FBF reference |
---|
| 441 | bool_t hidden = hal_remote_l32( XPTR( tgt_cxy , &tgt_ptr->hidden ) ); |
---|
| 442 | uint32_t w_l_min = hal_remote_l32( XPTR( tgt_cxy , &tgt_ptr->l_min ) ); |
---|
| 443 | uint32_t w_p_min = hal_remote_l32( XPTR( tgt_cxy , &tgt_ptr->p_min ) ); |
---|
| 444 | uint32_t w_height = hal_remote_l32( XPTR( tgt_cxy , &tgt_ptr->height ) ); |
---|
| 445 | uint32_t w_width = hal_remote_l32( XPTR( tgt_cxy , &tgt_ptr->width ) ); |
---|
| 446 | uint32_t w_l_max = w_l_min + w_height; |
---|
| 447 | uint32_t w_p_max = w_p_min + w_width; |
---|
[657] | 448 | |
---|
[674] | 449 | // does nothing when target window is hidden |
---|
| 450 | // or the pseudo window line does not overlap the target window |
---|
| 451 | if( (hidden == true) || |
---|
| 452 | (line < w_l_min) || |
---|
| 453 | (line >= w_l_max) || |
---|
| 454 | (p_max < w_p_min) || |
---|
| 455 | (p_min >= w_p_max) ) continue; |
---|
| 456 | |
---|
| 457 | // get pointer on buffer associated to target window in user space |
---|
| 458 | uint8_t * w_buffer = hal_remote_lpt( XPTR( tgt_cxy , &tgt_ptr->buffer ) ); |
---|
| 459 | |
---|
| 460 | // get min & max indexes for pixels to be moved in FBF reference |
---|
| 461 | uint32_t f_pixel_min = (p_min < w_p_min) ? w_p_min : p_min; |
---|
| 462 | uint32_t f_pixel_max = (p_max < w_p_max) ? p_max : w_p_max; |
---|
| 463 | |
---|
| 464 | // compute number of pixels to move from w_buffer to f_buffer |
---|
| 465 | uint32_t npixels = f_pixel_max - f_pixel_min; |
---|
| 466 | |
---|
| 467 | // compute offset in line_buffer |
---|
| 468 | uint32_t line_offset = f_pixel_min - p_min; |
---|
| 469 | |
---|
| 470 | // compute line index in window |
---|
| 471 | uint32_t w_line = line - w_l_min; |
---|
| 472 | |
---|
| 473 | // compute offset in window buffer |
---|
| 474 | uint32_t w_offset = (w_line * w_height) + f_pixel_min - w_p_min; |
---|
| 475 | |
---|
| 476 | // move pixels from w_buffer (user space) to line_buffer (kernel space) |
---|
| 477 | hal_copy_from_uspace( XPTR( local_cxy , &line_buffer[line_offset] ), |
---|
| 478 | &w_buffer[w_offset], |
---|
| 479 | npixels ); |
---|
[657] | 480 | } // end for windows |
---|
| 481 | |
---|
[674] | 482 | // release the lock |
---|
| 483 | remote_rwlock_rd_release( windows_lock_xp ); |
---|
| 484 | |
---|
[657] | 485 | // compute offset in FBF |
---|
| 486 | uint32_t fbf_offset = p_min + (line * fbf_width); |
---|
| 487 | |
---|
| 488 | // register command in calling thread descriptor |
---|
| 489 | this->fbf_cmd.dev_xp = fbf_xp; |
---|
| 490 | this->fbf_cmd.type = FBF_DRIVER_KERNEL_WRITE; |
---|
| 491 | this->fbf_cmd.buffer = line_buffer; |
---|
[674] | 492 | this->fbf_cmd.npixels = p_max - p_min; |
---|
[657] | 493 | this->fbf_cmd.offset = fbf_offset; |
---|
| 494 | |
---|
| 495 | // call driver to display one line |
---|
| 496 | cmd( XPTR( local_cxy , this ) ); |
---|
| 497 | |
---|
| 498 | error |= this->fbf_cmd.error; |
---|
| 499 | |
---|
| 500 | } // end for lines |
---|
| 501 | |
---|
| 502 | #if DEBUG_DEV_FBF |
---|
| 503 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 504 | if( DEBUG_DEV_FBF < cycle ) |
---|
[674] | 505 | printk("\n[%s] exit / cycle %d\n", |
---|
| 506 | __FUNCTION__, cycle ); |
---|
[657] | 507 | #endif |
---|
| 508 | |
---|
| 509 | // return I/O operation status |
---|
| 510 | return error; |
---|
| 511 | |
---|
| 512 | } // end fbf_update() |
---|
| 513 | |
---|
| 514 | ////////////////////////////////////////////// |
---|
| 515 | error_t dev_fbf_delete_window( uint32_t wid ) |
---|
| 516 | { |
---|
| 517 | thread_t * this = CURRENT_THREAD; |
---|
| 518 | process_t * process = this->process; |
---|
| 519 | |
---|
| 520 | #if DEBUG_DEV_FBF |
---|
| 521 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 522 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 523 | printk("\n[%s] thread[%x,%x] enters : wid %d / cycle %d\n", |
---|
| 524 | __FUNCTION__ , process->pid, this->trdid, wid, cycle ); |
---|
| 525 | #endif |
---|
| 526 | |
---|
[674] | 527 | // get extended pointer on window to be deleted |
---|
| 528 | xptr_t window_xp = dev_fbf_get_xptr_from_wid( wid ); |
---|
| 529 | |
---|
| 530 | if( window_xp == XPTR_NULL ) return -1; |
---|
| 531 | |
---|
[657] | 532 | // get cluster and pointers on FBF chdev |
---|
| 533 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
---|
| 534 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
---|
| 535 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
---|
| 536 | |
---|
[674] | 537 | // build extended pointers on windows lock, windows_tbl[wid] and wid allocator |
---|
[657] | 538 | xptr_t windows_lock_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_lock ); |
---|
| 539 | xptr_t wid_bitmap_xp = XPTR( fbf_cxy , fbf_ptr->ext.fbf.windows_bitmap ); |
---|
[674] | 540 | xptr_t windows_tbl_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_tbl[wid] ); |
---|
[657] | 541 | |
---|
[674] | 542 | // get cluster and local pointer on window |
---|
[657] | 543 | cxy_t window_cxy = GET_CXY( window_xp ); |
---|
| 544 | fbf_window_t * window_ptr = GET_PTR( window_xp ); |
---|
| 545 | |
---|
[674] | 546 | // get relevant info from window descriptor |
---|
| 547 | uint32_t p_min = hal_remote_l32( XPTR( window_cxy , &window_ptr->p_min ) ); |
---|
| 548 | uint32_t l_min = hal_remote_l32( XPTR( window_cxy , &window_ptr->l_min ) ); |
---|
| 549 | uint32_t npixels = hal_remote_l32( XPTR( window_cxy , &window_ptr->width ) ); |
---|
| 550 | uint32_t nlines = hal_remote_l32( XPTR( window_cxy , &window_ptr->height ) ); |
---|
| 551 | uint8_t * buffer = hal_remote_lpt( XPTR( window_cxy , &window_ptr->buffer ) ); |
---|
[657] | 552 | |
---|
[674] | 553 | // 1. set the hidden bit in window descriptor |
---|
| 554 | hal_remote_s32( XPTR( window_cxy , &window_ptr->hidden ) , true ); |
---|
[657] | 555 | |
---|
[674] | 556 | // 2. refresh the window in FBF |
---|
| 557 | fbf_update( p_min, l_min, p_min + npixels, l_min + nlines ); |
---|
[657] | 558 | |
---|
[674] | 559 | // 3. take the lock protecting windows in write mode |
---|
[657] | 560 | remote_rwlock_wr_acquire( windows_lock_xp ); |
---|
| 561 | |
---|
[674] | 562 | // 4. remove the window from windows_tbl[] array |
---|
[657] | 563 | hal_remote_s64( windows_tbl_xp , XPTR_NULL ); |
---|
| 564 | |
---|
[674] | 565 | // 5. remove the window from xlist |
---|
[657] | 566 | xlist_unlink( XPTR( window_cxy , &window_ptr->xlist ) ); |
---|
| 567 | |
---|
[674] | 568 | // 6. release wid to bitmap |
---|
[657] | 569 | bitmap_remote_clear( wid_bitmap_xp , wid ); |
---|
| 570 | |
---|
[674] | 571 | // 7. release the lock protecting windows in write mode |
---|
[657] | 572 | remote_rwlock_wr_release( windows_lock_xp ); |
---|
| 573 | |
---|
[674] | 574 | // 8. release memory allocated for window descriptor |
---|
[683] | 575 | kmem_remote_free( window_cxy , window_ptr , bits_log2(sizeof(fbf_window_t)) ); |
---|
[657] | 576 | |
---|
[674] | 577 | // 9. release the associated vseg |
---|
[657] | 578 | vmm_global_delete_vseg( process , (intptr_t)buffer ); |
---|
| 579 | |
---|
| 580 | #if DEBUG_DEV_FBF |
---|
| 581 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 582 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 583 | printk("\n[%s] thread[%x,%x] exit / cycle %d\n", |
---|
| 584 | __FUNCTION__ , process->pid, this->trdid, cycle ); |
---|
| 585 | #endif |
---|
| 586 | |
---|
| 587 | return 0; |
---|
| 588 | |
---|
| 589 | } // end dev_fbf_delete_window() |
---|
| 590 | |
---|
| 591 | //////////////////////////////////////////// |
---|
| 592 | error_t dev_fbf_move_window( uint32_t wid, |
---|
[674] | 593 | uint32_t l_new, |
---|
| 594 | uint32_t p_new ) |
---|
[657] | 595 | { |
---|
| 596 | |
---|
| 597 | #if DEBUG_DEV_FBF |
---|
[674] | 598 | thread_t * this = CURRENT_THREAD; |
---|
| 599 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
[657] | 600 | if( DEBUG_DEV_FBF < cycle ) |
---|
[674] | 601 | printk("\n[%s] thread[%x,%x] enters : wid %d / l_new %d / p_new %d / cycle %d\n", |
---|
| 602 | __FUNCTION__ , this->process->pid, this->trdid, wid, l_new, p_new, cycle ); |
---|
[657] | 603 | #endif |
---|
| 604 | |
---|
[674] | 605 | // get extended pointer on window to be moved |
---|
| 606 | xptr_t window_xp = dev_fbf_get_xptr_from_wid( wid ); |
---|
| 607 | |
---|
| 608 | if( window_xp == XPTR_NULL ) return -1; |
---|
| 609 | |
---|
[657] | 610 | // get cluster and pointers on FBF chdev |
---|
| 611 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
---|
| 612 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
---|
| 613 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
---|
| 614 | |
---|
| 615 | // build extended pointers on windows lock and root |
---|
| 616 | xptr_t windows_lock_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_lock ); |
---|
| 617 | xptr_t windows_root_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_root ); |
---|
| 618 | |
---|
| 619 | |
---|
[674] | 620 | // get cluster and local pointer on target window |
---|
[657] | 621 | cxy_t window_cxy = GET_CXY( window_xp ); |
---|
| 622 | fbf_window_t * window_ptr = GET_PTR( window_xp ); |
---|
| 623 | |
---|
[674] | 624 | // get target window coordinates, width and height |
---|
| 625 | uint32_t p_old = hal_remote_l32( XPTR( window_cxy , &window_ptr->p_min ) ); |
---|
| 626 | uint32_t l_old = hal_remote_l32( XPTR( window_cxy , &window_ptr->l_min ) ); |
---|
[657] | 627 | uint32_t nlines = hal_remote_l32( XPTR( window_cxy , &window_ptr->height ) ); |
---|
[674] | 628 | uint32_t npixels = hal_remote_l32( XPTR( window_cxy , &window_ptr->width ) ); |
---|
[657] | 629 | |
---|
[674] | 630 | // build extended pointer on window xlist_entry |
---|
| 631 | xptr_t xlist_entry_xp = XPTR( window_cxy , &window_ptr->xlist ); |
---|
[657] | 632 | |
---|
| 633 | // does nothing if no change |
---|
[674] | 634 | if( (p_new == p_old) && (l_new == l_old) ) return 0; |
---|
[657] | 635 | |
---|
[674] | 636 | // 1. set the "hidden" flag in window descriptor |
---|
| 637 | hal_remote_s32( XPTR( window_cxy , &window_ptr->hidden ) , true ); |
---|
[657] | 638 | |
---|
| 639 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
[674] | 640 | printk("\n[%s] hidden set\n", __FUNCTION__ ); |
---|
[657] | 641 | #endif |
---|
| 642 | |
---|
[674] | 643 | // 2. update the FBF for the old window position |
---|
| 644 | fbf_update( p_old , l_old , p_old + npixels, l_old + nlines ); |
---|
[657] | 645 | |
---|
| 646 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
[674] | 647 | printk("\n[%s] refreshed old window\n", __FUNCTION__ ); |
---|
[657] | 648 | #endif |
---|
| 649 | |
---|
[674] | 650 | // 3. take the lock protecting windows in write mode |
---|
| 651 | remote_rwlock_wr_acquire( windows_lock_xp ); |
---|
[657] | 652 | |
---|
| 653 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
[674] | 654 | printk("\n[%s] lock taken\n", __FUNCTION__ ); |
---|
[657] | 655 | #endif |
---|
| 656 | |
---|
[674] | 657 | // 4. set the new coordinates in the window descriptor, |
---|
| 658 | hal_remote_s32( XPTR( window_cxy , &window_ptr->l_min ), l_new ); |
---|
| 659 | hal_remote_s32( XPTR( window_cxy , &window_ptr->p_min ), p_new ); |
---|
[657] | 660 | |
---|
| 661 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 662 | printk("\n[%s] l_min & p_min updated\n", __FUNCTION__ ); |
---|
| 663 | #endif |
---|
| 664 | |
---|
[674] | 665 | // 5. gives the window the highest priority |
---|
[657] | 666 | xlist_unlink( xlist_entry_xp ); |
---|
| 667 | xlist_add_last( windows_root_xp , xlist_entry_xp ); |
---|
| 668 | |
---|
| 669 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 670 | printk("\n[%s] set high priority\n", __FUNCTION__ ); |
---|
| 671 | #endif |
---|
| 672 | |
---|
[674] | 673 | // 6. release the lock protecting windows in write mode |
---|
| 674 | remote_rwlock_wr_release( windows_lock_xp ); |
---|
| 675 | |
---|
| 676 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 677 | printk("\n[%s] lock released\n", __FUNCTION__ ); |
---|
| 678 | #endif |
---|
| 679 | |
---|
[657] | 680 | // 7. reset the "hidden" flag in window descriptor |
---|
| 681 | hal_remote_s32( XPTR( window_cxy , &window_ptr->hidden ) , false ); |
---|
| 682 | |
---|
| 683 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 684 | printk("\n[%s] hidden reset\n", __FUNCTION__ ); |
---|
| 685 | #endif |
---|
| 686 | |
---|
[674] | 687 | // 8. update the FBF for the new window position |
---|
| 688 | fbf_update( p_new , l_new , p_new + npixels, l_new + nlines ); |
---|
[657] | 689 | |
---|
| 690 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
[674] | 691 | printk("\n[%s] refresh new new window\n", __FUNCTION__ ); |
---|
[657] | 692 | #endif |
---|
| 693 | |
---|
| 694 | #if DEBUG_DEV_FBF |
---|
| 695 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 696 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 697 | printk("\n[%s] thread[%x,%x] exit / cycle %d\n", |
---|
[674] | 698 | __FUNCTION__ , this->process->pid, this->trdid, cycle ); |
---|
[657] | 699 | #endif |
---|
| 700 | |
---|
| 701 | return 0; |
---|
| 702 | |
---|
| 703 | } // end dev_fbf_move_window() |
---|
| 704 | |
---|
| 705 | ///////////////////////////////////////////// |
---|
| 706 | error_t dev_fbf_resize_window( uint32_t wid, |
---|
| 707 | uint32_t width, |
---|
| 708 | uint32_t height ) |
---|
| 709 | { |
---|
| 710 | thread_t * this = CURRENT_THREAD; |
---|
| 711 | process_t * process = this->process; |
---|
| 712 | |
---|
| 713 | #if DEBUG_DEV_FBF |
---|
[674] | 714 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
[657] | 715 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 716 | printk("\n[%s] thread[%x,%x] enters : wid %d / width %d / height %d / cycle %d\n", |
---|
| 717 | __FUNCTION__ , process->pid , this->trdid , wid, width , height , cycle ); |
---|
| 718 | #endif |
---|
| 719 | |
---|
[674] | 720 | // get extended pointer on window to be resized |
---|
| 721 | xptr_t window_xp = dev_fbf_get_xptr_from_wid( wid ); |
---|
| 722 | |
---|
| 723 | if( window_xp == XPTR_NULL ) return -1; |
---|
| 724 | |
---|
[657] | 725 | // get cluster and pointers on FBF chdev |
---|
| 726 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
---|
| 727 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
---|
| 728 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
---|
| 729 | |
---|
| 730 | // build extended pointers on windows lock and root |
---|
| 731 | xptr_t windows_lock_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_lock ); |
---|
| 732 | xptr_t windows_root_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_root ); |
---|
| 733 | |
---|
[674] | 734 | // get cluster and local pointer on target window |
---|
[657] | 735 | cxy_t window_cxy = GET_CXY( window_xp ); |
---|
| 736 | fbf_window_t * window_ptr = GET_PTR( window_xp ); |
---|
| 737 | |
---|
| 738 | // get process owner PID, width, height, and buffer |
---|
[674] | 739 | uint32_t p_min = hal_remote_l32( XPTR( window_cxy , &window_ptr->p_min ) ); |
---|
| 740 | uint32_t l_min = hal_remote_l32( XPTR( window_cxy , &window_ptr->l_min ) ); |
---|
| 741 | uint32_t nlines = hal_remote_l32( XPTR( window_cxy , &window_ptr->height ) ); |
---|
| 742 | uint32_t npixels = hal_remote_l32( XPTR( window_cxy , &window_ptr->width ) ); |
---|
| 743 | void * base = hal_remote_lpt( XPTR( window_cxy , &window_ptr->buffer ) ); |
---|
[657] | 744 | |
---|
[674] | 745 | // build extended pointer on window xlist_entry |
---|
| 746 | xptr_t xlist_entry_xp = XPTR( window_cxy , &window_ptr->xlist ); |
---|
[657] | 747 | |
---|
| 748 | // does nothing if no change |
---|
| 749 | if( (width == npixels) && (height == nlines) ) return 0; |
---|
| 750 | |
---|
| 751 | // compute old_size and new size |
---|
| 752 | uint32_t old_size = nlines * npixels; |
---|
| 753 | uint32_t new_size = width * height; |
---|
| 754 | |
---|
[674] | 755 | // 1. set the "hidden" flag in window descriptor |
---|
| 756 | hal_remote_s32( XPTR( window_cxy , &window_ptr->hidden ) , true ); |
---|
[657] | 757 | |
---|
| 758 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
[674] | 759 | printk("\n[%s] hidden set\n", __FUNCTION__ ); |
---|
[657] | 760 | #endif |
---|
| 761 | |
---|
[674] | 762 | // 2. refresh the FBF for the current window size |
---|
| 763 | fbf_update( p_min , l_min , p_min + npixels, l_min + nlines ); |
---|
[657] | 764 | |
---|
| 765 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
[674] | 766 | printk("\n[%s] refreshed old window\n", __FUNCTION__ ); |
---|
[657] | 767 | #endif |
---|
| 768 | |
---|
[674] | 769 | // 3. take the lock protecting windows in write mode |
---|
| 770 | remote_rwlock_wr_acquire( windows_lock_xp ); |
---|
[657] | 771 | |
---|
| 772 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
[674] | 773 | printk("\n[%s] lock taken\n", __FUNCTION__ ); |
---|
[657] | 774 | #endif |
---|
| 775 | |
---|
[674] | 776 | // 4. set the new width & height in the window descriptor, |
---|
[657] | 777 | hal_remote_s32( XPTR( window_cxy , &window_ptr->width ), width ); |
---|
| 778 | hal_remote_s32( XPTR( window_cxy , &window_ptr->height ), height ); |
---|
| 779 | |
---|
| 780 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 781 | printk("\n[%s] width & height updated\n", __FUNCTION__ ); |
---|
| 782 | #endif |
---|
| 783 | |
---|
[674] | 784 | // 5. resize vseg if required |
---|
[657] | 785 | vmm_global_resize_vseg( process, (intptr_t)base, (intptr_t)base, width * height ); |
---|
| 786 | |
---|
| 787 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 788 | printk("\n[%s] vseg resized\n", __FUNCTION__ ); |
---|
| 789 | #endif |
---|
| 790 | |
---|
[674] | 791 | // 6. fill buffer extension if required |
---|
[657] | 792 | if( new_size > old_size ) memset( base + old_size , 0 , new_size - old_size ); |
---|
| 793 | |
---|
| 794 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 795 | printk("\n[%s] buffer extension initialized\n", __FUNCTION__ ); |
---|
| 796 | #endif |
---|
| 797 | |
---|
[674] | 798 | // 7. gives the window the highest priority |
---|
[657] | 799 | xlist_unlink( xlist_entry_xp ); |
---|
| 800 | xlist_add_last( windows_root_xp , xlist_entry_xp ); |
---|
| 801 | |
---|
| 802 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 803 | printk("\n[%s] set high priority\n", __FUNCTION__ ); |
---|
| 804 | #endif |
---|
| 805 | |
---|
[674] | 806 | // 8. release the lock protecting windows in write mode |
---|
| 807 | remote_rwlock_wr_release( windows_lock_xp ); |
---|
| 808 | |
---|
| 809 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 810 | printk("\n[%s] lock released\n", __FUNCTION__ ); |
---|
| 811 | #endif |
---|
| 812 | |
---|
[657] | 813 | // 9. reset the "hidden" flag in window descriptor |
---|
| 814 | hal_remote_s32( XPTR( window_cxy , &window_ptr->hidden ) , false ); |
---|
| 815 | |
---|
| 816 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 817 | printk("\n[%s] hidden reset\n", __FUNCTION__ ); |
---|
| 818 | #endif |
---|
| 819 | |
---|
| 820 | // 10. refresh the FBF for the new window position |
---|
[674] | 821 | fbf_update( p_min , l_min , p_min + width, l_min + height ); |
---|
[657] | 822 | |
---|
| 823 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
[674] | 824 | printk("\n[%s] refreshed new window\n", __FUNCTION__ ); |
---|
[657] | 825 | #endif |
---|
| 826 | |
---|
| 827 | #if DEBUG_DEV_FBF |
---|
| 828 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 829 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 830 | printk("\n[%s] thread[%x,%x] exit / cycle %d\n", |
---|
| 831 | __FUNCTION__ , process->pid, this->trdid, cycle ); |
---|
| 832 | #endif |
---|
| 833 | |
---|
| 834 | return 0; |
---|
| 835 | |
---|
| 836 | } // end dev_fbf_resize_window() |
---|
| 837 | |
---|
[674] | 838 | ////////////////////////////////////////////// |
---|
[657] | 839 | error_t dev_fbf_refresh_window( uint32_t wid, |
---|
[674] | 840 | uint32_t line_min, |
---|
| 841 | uint32_t line_max ) |
---|
[657] | 842 | { |
---|
| 843 | |
---|
| 844 | #if DEBUG_DEV_FBF |
---|
[674] | 845 | thread_t * thi = CURRENT_THREAD; |
---|
| 846 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
[657] | 847 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 848 | printk("\n[%s] thread[%x,%x] enters for wid %d / first %d / last %d / cycle %d\n", |
---|
[674] | 849 | __FUNCTION__ , this->process->pid, this->trdid, wid, line_min, line_max, cycle ); |
---|
[657] | 850 | #endif |
---|
| 851 | |
---|
[674] | 852 | // get extended pointer on window to be refreshed |
---|
| 853 | xptr_t window_xp = dev_fbf_get_xptr_from_wid( wid ); |
---|
| 854 | |
---|
| 855 | if( window_xp == XPTR_NULL ) return -1; |
---|
| 856 | |
---|
| 857 | // get cluster and local pointer on target window |
---|
| 858 | cxy_t window_cxy = GET_CXY( window_xp ); |
---|
| 859 | fbf_window_t * window_ptr = GET_PTR( window_xp ); |
---|
| 860 | |
---|
| 861 | // get p_min, l_min, nlines & npixels from window descriptor |
---|
| 862 | uint32_t p_min = hal_remote_l32( XPTR( window_cxy , &window_ptr->p_min ) ); |
---|
| 863 | uint32_t l_min = hal_remote_l32( XPTR( window_cxy , &window_ptr->l_min ) ); |
---|
| 864 | uint32_t npixels = hal_remote_l32( XPTR( window_cxy , &window_ptr->width ) ); |
---|
| 865 | uint32_t nlines = hal_remote_l32( XPTR( window_cxy , &window_ptr->height ) ); |
---|
| 866 | |
---|
| 867 | // check <line_min> and <line_max> arguments |
---|
| 868 | if( (line_min >= nlines) || (line_max > nlines) || (line_min >= line_max) ) |
---|
| 869 | { |
---|
| 870 | printk("\n[ERROR] in %s : illegal arguments / l_first %d / l_last %d / nlines %d\n", |
---|
| 871 | __FUNCTION__, line_min, line_max, nlines ); |
---|
| 872 | return -1; |
---|
| 873 | } |
---|
| 874 | |
---|
| 875 | // update FBF |
---|
| 876 | fbf_update( p_min , l_min + line_min , p_min + npixels , l_min + line_max ); |
---|
| 877 | |
---|
| 878 | #if DEBUG_DEV_FBF |
---|
| 879 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 880 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 881 | printk("\n[%s] thread[%x,%x] exit for wid %d / cycle %d\n", |
---|
| 882 | __FUNCTION__, this->process->pid, this->trdid, wid, cycle ); |
---|
| 883 | #endif |
---|
| 884 | |
---|
| 885 | return 0; |
---|
| 886 | |
---|
| 887 | } // end dev_fbf_refresh_window() |
---|
| 888 | |
---|
| 889 | //////////////////////////////////////////// |
---|
| 890 | error_t dev_fbf_front_window( uint32_t wid ) |
---|
| 891 | { |
---|
| 892 | |
---|
| 893 | #if DEBUG_DEV_FBF |
---|
| 894 | thread_t * this = CURRENT_THREAD; |
---|
| 895 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 896 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 897 | printk("\n[%s] thread[%x,%x] enters for wid %d / cycle %d\n", |
---|
| 898 | __FUNCTION__ , this->process->pid, this->trdid, wid, cycle ); |
---|
| 899 | #endif |
---|
| 900 | |
---|
| 901 | // get extended pointer on window to be refreshed |
---|
| 902 | xptr_t window_xp = dev_fbf_get_xptr_from_wid( wid ); |
---|
| 903 | |
---|
| 904 | if( window_xp == XPTR_NULL ) return -1; |
---|
| 905 | |
---|
[657] | 906 | // get cluster and pointers on FBF chdev |
---|
| 907 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
---|
| 908 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
---|
| 909 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
---|
| 910 | |
---|
[674] | 911 | // build extended pointer on windows lock and root |
---|
[657] | 912 | xptr_t windows_lock_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_lock ); |
---|
[674] | 913 | xptr_t windows_root_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_root ); |
---|
[657] | 914 | |
---|
[674] | 915 | // get cluster and local pointers on window |
---|
[657] | 916 | cxy_t window_cxy = GET_CXY( window_xp ); |
---|
| 917 | fbf_window_t * window_ptr = GET_PTR( window_xp ); |
---|
| 918 | |
---|
[674] | 919 | // get target window coordinates, width, height, and hidden |
---|
| 920 | uint32_t p_min = hal_remote_l32( XPTR( window_cxy , &window_ptr->p_min ) ); |
---|
| 921 | uint32_t l_min = hal_remote_l32( XPTR( window_cxy , &window_ptr->l_min ) ); |
---|
| 922 | uint32_t nlines = hal_remote_l32( XPTR( window_cxy , &window_ptr->height ) ); |
---|
| 923 | uint32_t npixels = hal_remote_l32( XPTR( window_cxy , &window_ptr->width ) ); |
---|
| 924 | bool_t hidden = hal_remote_l32( XPTR( window_cxy , &window_ptr->hidden ) ); |
---|
[657] | 925 | |
---|
[674] | 926 | // build extended pointer on window xlist_entry |
---|
| 927 | xptr_t xlist_entry_xp = XPTR( window_cxy , &window_ptr->xlist ); |
---|
[657] | 928 | |
---|
[674] | 929 | // 1. take the lock protecting windows in write mode |
---|
| 930 | remote_rwlock_wr_acquire( windows_lock_xp ); |
---|
[657] | 931 | |
---|
[674] | 932 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 933 | printk("\n[%s] lock taken\n", __FUNCTION__ ); |
---|
| 934 | #endif |
---|
[657] | 935 | |
---|
[674] | 936 | // 2. gives the window the highest priority |
---|
| 937 | xlist_unlink( xlist_entry_xp ); |
---|
| 938 | xlist_add_last( windows_root_xp , xlist_entry_xp ); |
---|
[657] | 939 | |
---|
[674] | 940 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 941 | printk("\n[%s] set high priority \n", __FUNCTION__ ); |
---|
| 942 | #endif |
---|
[657] | 943 | |
---|
[674] | 944 | // 3. release the lock protecting windows from write mode |
---|
| 945 | remote_rwlock_wr_release( windows_lock_xp ); |
---|
| 946 | |
---|
| 947 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 948 | printk("\n[%s] lock released\n", __FUNCTION__ ); |
---|
| 949 | #endif |
---|
[657] | 950 | |
---|
[674] | 951 | // 4. update the FBF for this window when not hidden |
---|
| 952 | if( hidden == false ) fbf_update( p_min , l_min , p_min + npixels, l_min + nlines ); |
---|
[657] | 953 | |
---|
[674] | 954 | #if ( DEBUG_DEV_FBF & 1 ) |
---|
| 955 | printk("\n[%s] refresh window in FBF\n", __FUNCTION__ ); |
---|
| 956 | #endif |
---|
| 957 | |
---|
[657] | 958 | #if DEBUG_DEV_FBF |
---|
| 959 | cycle = (uint32_t)hal_get_cycles(); |
---|
| 960 | if( DEBUG_DEV_FBF < cycle ) |
---|
| 961 | printk("\n[%s] thread[%x,%x] exit for wid %d / cycle %d\n", |
---|
[674] | 962 | __FUNCTION__ , this->process->pid, this->trdid, wid, cycle ); |
---|
[657] | 963 | #endif |
---|
| 964 | |
---|
| 965 | return 0; |
---|
| 966 | |
---|
[674] | 967 | } // end dev_fbf_front_window() |
---|
[657] | 968 | |
---|
[674] | 969 | ///////////////////////////////////////// |
---|
| 970 | void dev_fbf_display_windows( pid_t pid ) |
---|
| 971 | { |
---|
| 972 | xptr_t iter_xp; |
---|
| 973 | |
---|
| 974 | // display header |
---|
| 975 | printk("\n***** registered FBF windows *****\n" |
---|
| 976 | " wid | hide | lzero | pzero | lines | pixel | pid\n" ); |
---|
| 977 | |
---|
| 978 | // get cluster and pointers on FBF chdev |
---|
| 979 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
---|
| 980 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
---|
| 981 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
---|
| 982 | |
---|
| 983 | // build extended pointer on windows lock and root |
---|
| 984 | xptr_t lock_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_lock ); |
---|
| 985 | xptr_t root_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_root ); |
---|
| 986 | |
---|
| 987 | // take the lock in read mode |
---|
| 988 | remote_rwlock_rd_acquire( lock_xp ); |
---|
| 989 | |
---|
| 990 | XLIST_FOREACH_BACKWARD( root_xp , iter_xp ) |
---|
| 991 | { |
---|
| 992 | xptr_t w_xp = XLIST_ELEMENT( iter_xp , fbf_window_t , xlist ); |
---|
| 993 | fbf_window_t * w_ptr = GET_PTR( w_xp ); |
---|
| 994 | cxy_t w_cxy = GET_CXY( w_xp ); |
---|
| 995 | |
---|
| 996 | uint32_t wid = hal_remote_l32( XPTR( w_cxy , &w_ptr->wid ) ); |
---|
| 997 | uint32_t owner_pid = hal_remote_l32( XPTR( w_cxy , &w_ptr->pid ) ); |
---|
| 998 | uint32_t hide = hal_remote_l32( XPTR( w_cxy , &w_ptr->hidden ) ); |
---|
| 999 | uint32_t lzero = hal_remote_l32( XPTR( w_cxy , &w_ptr->l_min ) ); |
---|
| 1000 | uint32_t pzero = hal_remote_l32( XPTR( w_cxy , &w_ptr->p_min ) ); |
---|
| 1001 | uint32_t lines = hal_remote_l32( XPTR( w_cxy , &w_ptr->height ) ); |
---|
| 1002 | uint32_t pixels = hal_remote_l32( XPTR( w_cxy , &w_ptr->width ) ); |
---|
| 1003 | |
---|
| 1004 | if( (pid == 0) || (pid == owner_pid) ) |
---|
| 1005 | { |
---|
| 1006 | printk("%d\t | %d\t | %d\t | %d\t | %d\t | %d\t | %x\n", |
---|
| 1007 | wid, hide, lzero, pzero, lines, pixels, pid ); |
---|
| 1008 | } |
---|
| 1009 | } |
---|
| 1010 | |
---|
| 1011 | // release the lock |
---|
| 1012 | remote_rwlock_rd_release( lock_xp ); |
---|
| 1013 | |
---|
| 1014 | } // end dev_fbf_display_windows() |
---|
| 1015 | |
---|
| 1016 | ///////////////////////////////// |
---|
| 1017 | void dev_fbf_cleanup( pid_t pid ) |
---|
| 1018 | { |
---|
| 1019 | xptr_t iter_xp; |
---|
| 1020 | |
---|
| 1021 | // get cluster and pointers on FBF chdev |
---|
| 1022 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
---|
| 1023 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
---|
| 1024 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
---|
| 1025 | |
---|
| 1026 | // build extended pointer on windows lock and root |
---|
| 1027 | xptr_t lock_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_lock ); |
---|
| 1028 | xptr_t root_xp = XPTR( fbf_cxy , &fbf_ptr->ext.fbf.windows_root ); |
---|
| 1029 | |
---|
| 1030 | // take the lock in read mode |
---|
| 1031 | remote_rwlock_rd_acquire( lock_xp ); |
---|
| 1032 | |
---|
| 1033 | XLIST_FOREACH( root_xp , iter_xp ) |
---|
| 1034 | { |
---|
| 1035 | xptr_t w_xp = XLIST_ELEMENT( iter_xp , fbf_window_t , xlist ); |
---|
| 1036 | fbf_window_t * w_ptr = GET_PTR( w_xp ); |
---|
| 1037 | cxy_t w_cxy = GET_CXY( w_xp ); |
---|
| 1038 | |
---|
| 1039 | // get owner process PID and WID |
---|
| 1040 | uint32_t owner_pid = hal_remote_l32( XPTR( w_cxy , &w_ptr->pid ) ); |
---|
| 1041 | uint32_t wid = hal_remote_l32( XPTR( w_cxy , &w_ptr->wid ) ); |
---|
| 1042 | |
---|
| 1043 | // delete matching window |
---|
| 1044 | if( pid == owner_pid ) dev_fbf_delete_window( wid ); |
---|
| 1045 | } |
---|
| 1046 | |
---|
| 1047 | // release the lock from read mode |
---|
| 1048 | remote_rwlock_rd_release( lock_xp ); |
---|
| 1049 | |
---|
| 1050 | } // end dev_fbf_cleanup() |
---|
| 1051 | |
---|
| 1052 | |
---|
| 1053 | |
---|
| 1054 | |
---|
[657] | 1055 | /////////////////////////////////////////////// |
---|
| 1056 | // TODO Deprecated : january 2020 [AG] |
---|
| 1057 | /////////////////////////////////////////////// |
---|
| 1058 | error_t dev_fbf_move_data( bool_t is_write, |
---|
[647] | 1059 | void * user_buffer, |
---|
[657] | 1060 | uint32_t npixels, |
---|
[647] | 1061 | uint32_t offset ) |
---|
[3] | 1062 | { |
---|
[647] | 1063 | // get pointer on calling thread |
---|
| 1064 | thread_t * this = CURRENT_THREAD; |
---|
[3] | 1065 | |
---|
[647] | 1066 | #if DEBUG_DEV_FBF |
---|
| 1067 | uint32_t cycle = (uint32_t)hal_get_cycles(); |
---|
| 1068 | if( DEBUG_DEV_FBF < cycle ) |
---|
[657] | 1069 | printk("\n[%s] thread[%x,%x] : buffer %x / npixels %d / offset %x / cycle %d\n", |
---|
[647] | 1070 | __FUNCTION__ , this->process->pid, this->trdid, |
---|
[657] | 1071 | user_buffer, npixels, offset, cycle ); |
---|
[647] | 1072 | #endif |
---|
[3] | 1073 | |
---|
[647] | 1074 | // get pointers on FBF chdev |
---|
| 1075 | xptr_t fbf_xp = chdev_dir.fbf[0]; |
---|
| 1076 | cxy_t fbf_cxy = GET_CXY( fbf_xp ); |
---|
| 1077 | chdev_t * fbf_ptr = GET_PTR( fbf_xp ); |
---|
[3] | 1078 | |
---|
[647] | 1079 | // get frame buffer width and height |
---|
[565] | 1080 | uint32_t width = hal_remote_l32 ( XPTR( fbf_cxy , &fbf_ptr->ext.fbf.width ) ); |
---|
| 1081 | uint32_t height = hal_remote_l32 ( XPTR( fbf_cxy , &fbf_ptr->ext.fbf.height ) ); |
---|
[3] | 1082 | |
---|
[657] | 1083 | // check offset and npixels versus FBF size |
---|
| 1084 | if( ((offset + npixels) > (width * height)) ) |
---|
| 1085 | { |
---|
| 1086 | printk("\n[ERROR] in %s : offset (%d) + npixels (%d) / width (%d) / height (%d)\n", |
---|
| 1087 | __FUNCTION__, offset, npixels, width, height ); |
---|
| 1088 | return -1; |
---|
| 1089 | } |
---|
[3] | 1090 | |
---|
[647] | 1091 | // register command in calling thread descriptor |
---|
| 1092 | this->fbf_cmd.dev_xp = fbf_xp; |
---|
[657] | 1093 | this->fbf_cmd.type = is_write ? FBF_DRIVER_USER_WRITE : FBF_DRIVER_USER_READ; |
---|
[647] | 1094 | this->fbf_cmd.buffer = user_buffer; |
---|
| 1095 | this->fbf_cmd.offset = offset; |
---|
[657] | 1096 | this->fbf_cmd.npixels = npixels; |
---|
[3] | 1097 | |
---|
[647] | 1098 | // get driver command function |
---|
| 1099 | dev_cmd_t * cmd = (dev_cmd_t *)hal_remote_lpt( XPTR( fbf_cxy , &fbf_ptr->cmd ) ); |
---|
[3] | 1100 | |
---|
[647] | 1101 | // call driver |
---|
| 1102 | cmd( XPTR( local_cxy , this ) ); |
---|
[3] | 1103 | |
---|
[647] | 1104 | error_t error = this->fbf_cmd.error; |
---|
[3] | 1105 | |
---|
[647] | 1106 | #if DEBUG_DEV_FBF |
---|
[471] | 1107 | cycle = (uint32_t)hal_get_cycles(); |
---|
[647] | 1108 | if( DEBUG_DEV_FBF < cycle ) |
---|
[657] | 1109 | printk("\n[%s] thread[%x,%x] exit / cycle %d\n", |
---|
| 1110 | __FUNCTION__ , this->process->pid, this->trdid, cycle ); |
---|
[437] | 1111 | #endif |
---|
| 1112 | |
---|
[647] | 1113 | // return I/O operation status |
---|
| 1114 | return error; |
---|
[3] | 1115 | |
---|
[647] | 1116 | } // end dev_fbf_move_data() |
---|
[657] | 1117 | |
---|
| 1118 | |
---|