1 | /* |
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2 | * This routine starts the application. It includes application, |
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3 | * board, and monitor specific initialization and configuration. |
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4 | * The generic CPU dependent initialization has been performed |
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5 | * before this routine is invoked. |
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6 | * |
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7 | * COPYRIGHT (c) 1989-1999. |
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8 | * On-Line Applications Research Corporation (OAR). |
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9 | * |
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10 | * The license and distribution terms for this file may be |
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11 | * found in the file LICENSE in this distribution or at |
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12 | * http://www.OARcorp.com/rtems/license.html. |
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13 | * |
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14 | * Ported to the i386ex and submitted by: |
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15 | * |
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16 | * Erik Ivanenko |
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17 | * University of Toronto |
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18 | * erik.ivanenko@utoronto.ca |
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19 | * |
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20 | * $Id$ |
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21 | */ |
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22 | |
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23 | void bsp_clean_up(void); |
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24 | |
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25 | #include <bsp.h> |
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26 | #include <rtems/libio.h> |
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27 | |
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28 | #include <libcsupport.h> |
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29 | |
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30 | /* |
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31 | * The original table from the application and our copy of it with |
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32 | * some changes. |
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33 | */ |
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34 | |
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35 | extern rtems_configuration_table Configuration; |
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36 | rtems_configuration_table BSP_Configuration; |
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37 | |
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38 | rtems_cpu_table Cpu_table; |
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39 | |
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40 | /* |
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41 | * Tells us where to put the workspace in case remote debugger is present. |
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42 | */ |
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43 | |
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44 | extern rtems_unsigned32 rdb_start; |
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45 | |
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46 | /* |
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47 | * Use the shared implementations of the following routines |
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48 | */ |
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49 | |
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50 | void bsp_postdriver_hook(void); |
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51 | void bsp_libc_init( void *, unsigned32, int ); |
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52 | |
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53 | /* |
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54 | * Function: bsp_pretasking_hook |
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55 | * Created: 95/03/10 |
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56 | * |
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57 | * Description: |
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58 | * BSP pretasking hook. Called just before drivers are initialized. |
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59 | * Used to setup libc and install any BSP extensions. |
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60 | * |
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61 | * NOTES: |
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62 | * Must not use libc (to do io) from here, since drivers are |
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63 | * not yet initialized. |
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64 | * |
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65 | */ |
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66 | |
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67 | void bsp_pretasking_hook(void) |
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68 | { |
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69 | extern int heap_bottom; |
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70 | rtems_unsigned32 heap_start; |
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71 | rtems_unsigned32 heap_size; |
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72 | |
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73 | heap_start = (rtems_unsigned32) &heap_bottom; |
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74 | if (heap_start & (CPU_ALIGNMENT-1)) |
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75 | heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1); |
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76 | |
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77 | heap_size = BSP_Configuration.work_space_start -(void *) heap_start ; |
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78 | heap_size &= 0xfffffff0; /* keep it as a multiple of 16 bytes */ |
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79 | |
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80 | heap_size &= 0xfffffff0; /* keep it as a multiple of 16 bytes */ |
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81 | bsp_libc_init((void *) heap_start, heap_size, 0); |
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82 | |
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83 | |
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84 | #ifdef RTEMS_DEBUG |
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85 | rtems_debug_enable( RTEMS_DEBUG_ALL_MASK ); |
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86 | #endif |
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87 | } |
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88 | |
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89 | /* |
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90 | * bsp_start |
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91 | * |
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92 | * This routine does the bulk of the system initialization. |
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93 | */ |
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94 | |
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95 | void bsp_start( void ) |
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96 | { |
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97 | /* |
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98 | * we do not use the pretasking_hook. |
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99 | */ |
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100 | |
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101 | Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */ |
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102 | Cpu_table.postdriver_hook = bsp_postdriver_hook; |
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103 | Cpu_table.interrupt_table_segment = get_ds(); |
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104 | Cpu_table.interrupt_table_offset = (void *)Interrupt_descriptor_table; |
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105 | Cpu_table.interrupt_stack_size = 8192; /* changed Sept 14 STACK_MINIMUM_SIZE */ |
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106 | |
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107 | #if defined(RTEMS_POSIX_API) |
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108 | BSP_Configuration.work_space_size *= 3; |
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109 | #endif |
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110 | |
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111 | /* BSP_Configuration.work_space_size += 128 * RTEMS_MINIMUM_STACK_SIZE; */ |
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112 | |
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113 | BSP_Configuration.work_space_start = (void *) |
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114 | RAM_END - BSP_Configuration.work_space_size; |
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115 | #ifdef DEBUG |
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116 | printk("workspace size = 0x%x\nstart = 0x%x, RAM_END = 0x%x\n",BSP_Configuration.work_space_size, BSP_Configuration.work_space_start, RAM_END ); |
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117 | #endif |
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118 | |
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119 | /* |
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120 | * Account for the console's resources |
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121 | */ |
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122 | |
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123 | /* console_reserve_resources( &BSP_Configuration ); */ |
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124 | /* |
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125 | * Init rtems_interrupt_management |
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126 | */ |
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127 | rtems_irq_mngt_init(); |
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128 | } |
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129 | void bsp_clean_up(void) { |
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130 | printk("bsp_cleanup called\n"); |
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131 | } |
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