[ac7d5ef0] | 1 | /* bsp_start() |
---|
| 2 | * |
---|
| 3 | * This routine starts the application. It includes application, |
---|
| 4 | * board, and monitor specific initialization and configuration. |
---|
| 5 | * The generic CPU dependent initialization has been performed |
---|
| 6 | * before this routine is invoked. |
---|
| 7 | * |
---|
| 8 | * INPUT: NONE |
---|
| 9 | * |
---|
| 10 | * OUTPUT: NONE |
---|
| 11 | * |
---|
[03f2154e] | 12 | * COPYRIGHT (c) 1989-1997. |
---|
[ac7d5ef0] | 13 | * On-Line Applications Research Corporation (OAR). |
---|
[03f2154e] | 14 | * Copyright assigned to U.S. Government, 1994. |
---|
[ac7d5ef0] | 15 | * |
---|
[98e4ebf5] | 16 | * The license and distribution terms for this file may be |
---|
| 17 | * found in the file LICENSE in this distribution or at |
---|
[03f2154e] | 18 | * http://www.OARcorp.com/rtems/license.html. |
---|
[ac7d5ef0] | 19 | * |
---|
| 20 | * $Id$ |
---|
| 21 | */ |
---|
| 22 | |
---|
| 23 | #include <bsp.h> |
---|
[3a4ae6c] | 24 | #include <rtems/libio.h> |
---|
| 25 | |
---|
| 26 | #include <libcsupport.h> |
---|
| 27 | |
---|
| 28 | #include <string.h> |
---|
| 29 | #include <fcntl.h> |
---|
| 30 | |
---|
| 31 | #ifdef STACK_CHECKER_ON |
---|
| 32 | #include <stackchk.h> |
---|
| 33 | #endif |
---|
[ac7d5ef0] | 34 | |
---|
| 35 | /* |
---|
| 36 | * The original table from the application and our copy of it with |
---|
| 37 | * some changes. |
---|
| 38 | */ |
---|
| 39 | |
---|
| 40 | extern rtems_configuration_table Configuration; |
---|
| 41 | |
---|
| 42 | rtems_configuration_table BSP_Configuration; |
---|
| 43 | |
---|
| 44 | rtems_cpu_table Cpu_table; |
---|
| 45 | |
---|
[3a4ae6c] | 46 | char *rtems_progname; |
---|
| 47 | |
---|
[ac7d5ef0] | 48 | /* Initialize whatever libc we are using |
---|
| 49 | * called from postdriver hook |
---|
| 50 | */ |
---|
| 51 | |
---|
| 52 | void bsp_libc_init() |
---|
| 53 | { |
---|
| 54 | extern int end; |
---|
| 55 | rtems_unsigned32 heap_start; |
---|
| 56 | |
---|
| 57 | heap_start = (rtems_unsigned32) &end; |
---|
| 58 | if (heap_start & (CPU_ALIGNMENT-1)) |
---|
| 59 | heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1); |
---|
| 60 | |
---|
| 61 | RTEMS_Malloc_Initialize((void *) heap_start, 64 * 1024, 0); |
---|
| 62 | |
---|
[3a4ae6c] | 63 | /* |
---|
| 64 | * Init the RTEMS libio facility to provide UNIX-like system |
---|
[634e746] | 65 | * calls for use by newlib (ie: provide __rtems_open, __rtems_close, etc) |
---|
[3a4ae6c] | 66 | * Uses malloc() to get area for the iops, so must be after malloc init |
---|
| 67 | */ |
---|
| 68 | |
---|
| 69 | rtems_libio_init(); |
---|
| 70 | |
---|
[ac7d5ef0] | 71 | /* |
---|
| 72 | * Set up for the libc handling. |
---|
| 73 | */ |
---|
| 74 | |
---|
| 75 | if (BSP_Configuration.ticks_per_timeslice > 0) |
---|
| 76 | libc_init(1); /* reentrant if possible */ |
---|
| 77 | else |
---|
| 78 | libc_init(0); /* non-reentrant */ |
---|
[3652ad35] | 79 | } |
---|
| 80 | |
---|
| 81 | /* |
---|
| 82 | * Function: bsp_pretasking_hook |
---|
| 83 | * Created: 95/03/10 |
---|
| 84 | * |
---|
| 85 | * Description: |
---|
| 86 | * BSP pretasking hook. Called just before drivers are initialized. |
---|
| 87 | * Used to setup libc and install any BSP extensions. |
---|
| 88 | * |
---|
| 89 | * NOTES: |
---|
| 90 | * Must not use libc (to do io) from here, since drivers are |
---|
| 91 | * not yet initialized. |
---|
| 92 | * |
---|
| 93 | */ |
---|
| 94 | |
---|
| 95 | void |
---|
| 96 | bsp_pretasking_hook(void) |
---|
| 97 | { |
---|
| 98 | bsp_libc_init(); |
---|
| 99 | |
---|
| 100 | #ifdef STACK_CHECKER_ON |
---|
[ac7d5ef0] | 101 | /* |
---|
| 102 | * Initialize the stack bounds checker |
---|
[3652ad35] | 103 | * We can either turn it on here or from the app. |
---|
[ac7d5ef0] | 104 | */ |
---|
[3652ad35] | 105 | |
---|
[ac7d5ef0] | 106 | Stack_check_Initialize(); |
---|
| 107 | #endif |
---|
[3652ad35] | 108 | |
---|
| 109 | #ifdef RTEMS_DEBUG |
---|
| 110 | rtems_debug_enable( RTEMS_DEBUG_ALL_MASK ); |
---|
| 111 | #endif |
---|
[ac7d5ef0] | 112 | } |
---|
[3652ad35] | 113 | |
---|
[ac7d5ef0] | 114 | |
---|
[3a4ae6c] | 115 | /* |
---|
| 116 | * After drivers are setup, register some "filenames" |
---|
| 117 | * and open stdin, stdout, stderr files |
---|
| 118 | * |
---|
| 119 | * Newlib will automatically associate the files with these |
---|
| 120 | * (it hardcodes the numbers) |
---|
| 121 | */ |
---|
| 122 | |
---|
| 123 | void |
---|
| 124 | bsp_postdriver_hook(void) |
---|
| 125 | { |
---|
| 126 | int stdin_fd, stdout_fd, stderr_fd; |
---|
[9700578] | 127 | int error_code; |
---|
| 128 | |
---|
| 129 | error_code = 'S' << 24 | 'T' << 16; |
---|
[3a4ae6c] | 130 | |
---|
[634e746] | 131 | if ((stdin_fd = __rtems_open("/dev/console", O_RDONLY, 0)) == -1) |
---|
[9700578] | 132 | rtems_fatal_error_occurred( error_code | 'D' << 8 | '0' ); |
---|
[3a4ae6c] | 133 | |
---|
[634e746] | 134 | if ((stdout_fd = __rtems_open("/dev/console", O_WRONLY, 0)) == -1) |
---|
[9700578] | 135 | rtems_fatal_error_occurred( error_code | 'D' << 8 | '1' ); |
---|
[3a4ae6c] | 136 | |
---|
[634e746] | 137 | if ((stderr_fd = __rtems_open("/dev/console", O_WRONLY, 0)) == -1) |
---|
[9700578] | 138 | rtems_fatal_error_occurred( error_code | 'D' << 8 | '2' ); |
---|
[3a4ae6c] | 139 | |
---|
| 140 | if ((stdin_fd != 0) || (stdout_fd != 1) || (stderr_fd != 2)) |
---|
[9700578] | 141 | rtems_fatal_error_occurred( error_code | 'I' << 8 | 'O' ); |
---|
[3a4ae6c] | 142 | } |
---|
| 143 | |
---|
| 144 | int main( |
---|
[ac7d5ef0] | 145 | int argc, |
---|
| 146 | char **argv, |
---|
| 147 | char **environp |
---|
| 148 | ) |
---|
| 149 | { |
---|
[3a4ae6c] | 150 | if ((argc > 0) && argv && argv[0]) |
---|
| 151 | rtems_progname = argv[0]; |
---|
| 152 | else |
---|
| 153 | rtems_progname = "RTEMS"; |
---|
| 154 | |
---|
[ac7d5ef0] | 155 | /* set node number in SQSIO4 CTL REG */ |
---|
| 156 | |
---|
| 157 | *((rtems_unsigned32 *)0xc00000b0) = |
---|
| 158 | (Configuration.User_multiprocessing_table) ? |
---|
| 159 | Configuration.User_multiprocessing_table->node : 0; |
---|
| 160 | |
---|
| 161 | Prcb = get_prcb(); |
---|
| 162 | Ctl_tbl = Prcb->control_tbl; |
---|
| 163 | |
---|
| 164 | /* following configures the data breakpoint (which must be set |
---|
| 165 | * before this is executed) to break on writes only. |
---|
| 166 | */ |
---|
| 167 | |
---|
| 168 | Ctl_tbl->bpcon &= ~0x00cc0000; |
---|
| 169 | i960_reload_ctl_group( 6 ); |
---|
| 170 | |
---|
| 171 | /* bit 31 of the Register Cache Control can be set to |
---|
| 172 | * enable an alternative caching algorithm. It does |
---|
| 173 | * not appear to help RTEMS. |
---|
| 174 | */ |
---|
| 175 | |
---|
| 176 | /* Configure Number of Register Caches */ |
---|
| 177 | |
---|
| 178 | Prcb->reg_cache_cfg = 8; |
---|
| 179 | i960_soft_reset( Prcb ); |
---|
| 180 | |
---|
| 181 | /* |
---|
| 182 | * we do not use the pretasking_hook. |
---|
| 183 | */ |
---|
| 184 | |
---|
[3652ad35] | 185 | Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */ |
---|
[ac7d5ef0] | 186 | |
---|
[3652ad35] | 187 | Cpu_table.predriver_hook = NULL; |
---|
[ac7d5ef0] | 188 | |
---|
[3a4ae6c] | 189 | Cpu_table.postdriver_hook = bsp_postdriver_hook; |
---|
[ac7d5ef0] | 190 | |
---|
| 191 | Cpu_table.idle_task = NULL; /* do not override system IDLE task */ |
---|
| 192 | |
---|
| 193 | Cpu_table.do_zero_of_workspace = TRUE; |
---|
| 194 | |
---|
| 195 | Cpu_table.interrupt_stack_size = 4096; |
---|
| 196 | |
---|
[8cbbe312] | 197 | Cpu_table.extra_mpci_receive_server_stack = 0; |
---|
[ac7d5ef0] | 198 | |
---|
| 199 | Cpu_table.Prcb = Prcb; |
---|
| 200 | |
---|
| 201 | /* |
---|
| 202 | * Copy the table |
---|
| 203 | */ |
---|
| 204 | |
---|
| 205 | BSP_Configuration = Configuration; |
---|
| 206 | |
---|
| 207 | /* |
---|
| 208 | * Add 1 region for the RTEMS Malloc |
---|
| 209 | */ |
---|
| 210 | |
---|
[e6d4b1d] | 211 | BSP_Configuration.RTEMS_api_configuration->maximum_regions++; |
---|
[ac7d5ef0] | 212 | |
---|
| 213 | /* |
---|
| 214 | * Add 1 extension for newlib libc |
---|
| 215 | */ |
---|
| 216 | |
---|
| 217 | #ifdef RTEMS_NEWLIB |
---|
| 218 | BSP_Configuration.maximum_extensions++; |
---|
| 219 | #endif |
---|
| 220 | |
---|
| 221 | /* |
---|
| 222 | * Add another extension if using the stack checker |
---|
| 223 | */ |
---|
| 224 | |
---|
| 225 | #ifdef STACK_CHECKER_ON |
---|
| 226 | BSP_Configuration.maximum_extensions++; |
---|
| 227 | #endif |
---|
| 228 | |
---|
[3a4ae6c] | 229 | /* |
---|
| 230 | * Tell libio how many fd's we want and allow it to tweak config |
---|
| 231 | */ |
---|
| 232 | |
---|
| 233 | rtems_libio_config(&BSP_Configuration, BSP_LIBIO_MAX_FDS); |
---|
| 234 | |
---|
[ac7d5ef0] | 235 | BSP_Configuration.work_space_start = (void *) |
---|
| 236 | (RAM_END - BSP_Configuration.work_space_size); |
---|
| 237 | |
---|
| 238 | rtems_initialize_executive( &BSP_Configuration, &Cpu_table ); |
---|
| 239 | /* does not return */ |
---|
| 240 | |
---|
| 241 | bsp_cleanup(); |
---|
| 242 | |
---|
| 243 | return 0; |
---|
| 244 | |
---|
| 245 | } |
---|