diff options
Diffstat (limited to 'c/src/lib/libcpu/powerpc/mpc5xx/exceptions/raw_exception.c')
| -rw-r--r-- | c/src/lib/libcpu/powerpc/mpc5xx/exceptions/raw_exception.c | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/c/src/lib/libcpu/powerpc/mpc5xx/exceptions/raw_exception.c b/c/src/lib/libcpu/powerpc/mpc5xx/exceptions/raw_exception.c deleted file mode 100644 index 6cb35be650..0000000000 --- a/c/src/lib/libcpu/powerpc/mpc5xx/exceptions/raw_exception.c +++ /dev/null @@ -1,190 +0,0 @@ -/* - * raw_exception.c - This file contains implementation of C functions to - * Instantiate mpc5xx primary exception entries. - * More detailled information can be found on the Motorola - * site and more precisely in the following book: - * - * MPC555/MPC556 User's Manual - * Motorola REF : MPC555UM/D Rev. 3, 2000 October 15 - * - * - * MPC5xx port sponsored by Defence Research and Development Canada - Suffield - * Copyright (C) 2004, Real-Time Systems Inc. (querbach@realtime.bc.ca) - * - * Derived from libcpu/powerpc/mpc8xx/exceptions/raw_exception.c: - * - * Copyright (C) 1999 Eric Valette (valette@crf.canon.fr) - * Canon Centre Recherche France. - * - * The license and distribution terms for this file may be - * found in the file LICENSE in this distribution or at - * http://www.rtems.org/license/LICENSE. - * - */ - -#include <rtems.h> -#include <rtems/score/powerpc.h> -#include <libcpu/raw_exception.h> -#include <libcpu/cpuIdent.h> -#include <rtems/bspIo.h> /* for printk */ -#include <string.h> - -static rtems_raw_except_connect_data* raw_except_table; -static rtems_raw_except_connect_data default_raw_except_entry; -static rtems_raw_except_global_settings* local_settings; - -int mpc5xx_vector_is_valid(rtems_vector vector) -{ - switch (current_ppc_cpu) { - case PPC_5XX: - switch(vector) { - case ASM_RESET_VECTOR: - case ASM_MACH_VECTOR: - - case ASM_EXT_VECTOR: - case ASM_ALIGN_VECTOR: - case ASM_PROG_VECTOR: - case ASM_FLOAT_VECTOR: - case ASM_DEC_VECTOR: - - case ASM_SYS_VECTOR: - case ASM_TRACE_VECTOR: - case ASM_FLOATASSIST_VECTOR: - - case ASM_SOFTEMUL_VECTOR: - - case ASM_IPROT_VECTOR: - case ASM_DPROT_VECTOR: - - case ASM_DBREAK_VECTOR: - case ASM_IBREAK_VECTOR: - case ASM_MEBREAK_VECTOR: - case ASM_NMEBREAK_VECTOR: - return 1; - default: - return 0; - } - default: - printk("Please complete libcpu/powerpc/mpc5xx/exceptions/raw_exception.c\n"); - printk("current_ppc_cpu = %x\n", current_ppc_cpu); - return 0; - } -} - -int mpc5xx_set_exception (const rtems_raw_except_connect_data* except) -{ - rtems_interrupt_level level; - - if (!mpc5xx_vector_is_valid(except->exceptIndex)) { - return 0; - } - /* - * Check if default handler is actually connected. If not issue an error. - * You must first get the current handler via mpc5xx_get_current_exception - * and then disconnect it using mpc5xx_delete_exception. - * RATIONALE : to always have the same transition by forcing the user - * to get the previous handler before accepting to disconnect. - */ - if (exception_handler_table[except->exceptIndex] != - default_raw_except_entry.hdl.raw_hdl) { - return 0; - } - - rtems_interrupt_disable(level); - - raw_except_table[except->exceptIndex] = *except; - - exception_handler_table[except->exceptIndex] = except->hdl.raw_hdl; - if (except->on) - except->on(except); - - rtems_interrupt_enable(level); - return 1; -} - -int mpc5xx_get_current_exception (rtems_raw_except_connect_data* except) -{ - if (!mpc5xx_vector_is_valid(except->exceptIndex)){ - return 0; - } - - *except = raw_except_table[except->exceptIndex]; - - return 1; -} - -int mpc5xx_delete_exception (const rtems_raw_except_connect_data* except) -{ - rtems_interrupt_level level; - - if (!mpc5xx_vector_is_valid(except->exceptIndex)){ - return 0; - } - /* - * Check if handler passed is actually connected. If not issue an error. - * You must first get the current handler via mpc5xx_get_current_exception - * and then disconnect it using mpc5xx_delete_exception. - * RATIONALE : to always have the same transition by forcing the user - * to get the previous handler before accepting to disconnect. - */ - if (exception_handler_table[except->exceptIndex] != except->hdl.raw_hdl) { - return 0; - } - - rtems_interrupt_disable(level); - - if (except->off) - except->off(except); - exception_handler_table[except->exceptIndex] = - default_raw_except_entry.hdl.raw_hdl; - - raw_except_table[except->exceptIndex] = default_raw_except_entry; - raw_except_table[except->exceptIndex].exceptIndex = except->exceptIndex; - - rtems_interrupt_enable(level); - - return 1; -} - -/* - * Exception global init. - * - * Install exception handler pointers from the raw exception table into the - * exception handler table. - */ -int mpc5xx_init_exceptions (rtems_raw_except_global_settings* config) -{ - unsigned i; - rtems_interrupt_level level; - - /* - * store various accelerators - */ - raw_except_table = config->rawExceptHdlTbl; - local_settings = config; - default_raw_except_entry = config->defaultRawEntry; - - rtems_interrupt_disable(level); - - for (i = 0; i < NUM_EXCEPTIONS; i++) { - exception_handler_table[i] = raw_except_table[i].hdl.raw_hdl; - - if (raw_except_table[i].hdl.raw_hdl != default_raw_except_entry.hdl.raw_hdl) { - if (raw_except_table[i].on) - raw_except_table[i].on(&raw_except_table[i]); - } - else { - if (raw_except_table[i].off) - raw_except_table[i].off(&raw_except_table[i]); - } - } - rtems_interrupt_enable(level); - - return 1; -} - -int mpc5xx_get_exception_config (rtems_raw_except_global_settings** config) -{ - *config = local_settings; - return 1; -} |