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Diffstat (limited to 'c/src/lib/libbsp/powerpc/gen83xx/irq/irq_init.c')
-rw-r--r--c/src/lib/libbsp/powerpc/gen83xx/irq/irq_init.c417
1 files changed, 0 insertions, 417 deletions
diff --git a/c/src/lib/libbsp/powerpc/gen83xx/irq/irq_init.c b/c/src/lib/libbsp/powerpc/gen83xx/irq/irq_init.c
deleted file mode 100644
index 15e9f55e9c..0000000000
--- a/c/src/lib/libbsp/powerpc/gen83xx/irq/irq_init.c
+++ /dev/null
@@ -1,417 +0,0 @@
-/*===============================================================*\
-| Project: RTEMS generic MPC83xx BSP |
-+-----------------------------------------------------------------+
-| Copyright (c) 2007 |
-| Embedded Brains GmbH |
-| Obere Lagerstr. 30 |
-| D-82178 Puchheim |
-| Germany |
-| rtems@embedded-brains.de |
-+-----------------------------------------------------------------+
-| The license and distribution terms for this file may be |
-| found in the file LICENSE in this distribution or at |
-| |
-| http://www.rtems.com/license/LICENSE. |
-| |
-+-----------------------------------------------------------------+
-| this file contains the irq controller init code |
-+-----------------------------------------------------------------+
-| derived from the virtex BSP |
-\*===============================================================*/
-#include <libcpu/spr.h>
-#include <bsp/irq.h>
-#include <bsp.h>
-#include <libcpu/raw_exception.h>
-#include <rtems/bspIo.h>
-#include <rtems/powerpc/powerpc.h>
-#include <rtems/score/apiext.h>
-#include <bsp/vectors.h>
-
-
-static rtems_irq_connect_data rtemsIrqTbl[BSP_IRQ_NUMBER];
-rtems_irq_connect_data *BSP_rtems_irq_tbl;
-rtems_irq_global_settings* BSP_rtems_irq_config;
-
-/***********************************************************
- * dummy functions for on/off/isOn calls
- * these functions just do nothing fulfill the semantic
- * requirements to enable/disable a certain interrupt or exception
- */
-void BSP_irq_nop_func(const rtems_irq_connect_data *unused)
-{
- /*
- * nothing to do
- */
-}
-
-void BSP_irq_nop_hdl(void *hdl)
-{
- /*
- * nothing to do
- */
-}
-
-int BSP_irq_true_func(const rtems_irq_connect_data *unused)
-{
- /*
- * nothing to do
- */
- return TRUE;
-}
-
-/***********************************************************
- * interrupt handler and its enable/disable functions
- ***********************************************************/
-
-/***********************************************************
- * functions to enable/disable/query external/critical interrupts
- */
-void BSP_irqexc_on_fnc(rtems_irq_connect_data *conn_data)
-{
- uint32_t msr_value;
- /*
- * get current MSR value
- */
- _CPU_MSR_GET(msr_value);
-
-
- msr_value |= PPC_MSR_EE;
- _CPU_MSR_SET(msr_value);
-}
-
-void BSP_irqexc_off_fnc(rtems_irq_connect_data *unused)
-{
- /*
- * nothing to do
- */
-}
-
-/***********************************************************
- * High level IRQ handler called from shared_raw_irq_code_entry
- */
-int C_dispatch_irq_handler (CPU_Interrupt_frame *frame, unsigned int excNum)
-{
- uint32_t msr_value,new_msr;
-
- /*
- * Handle interrupt
- */
- switch(excNum) {
- case ASM_DEC_VECTOR:
- _CPU_MSR_GET(msr_value);
- new_msr = msr_value | MSR_EE;
- _CPU_MSR_SET(new_msr);
-
- BSP_rtems_irq_tbl[BSP_DECREMENTER].hdl
- (BSP_rtems_irq_tbl[BSP_DECREMENTER].handle);
-
- _CPU_MSR_SET(msr_value);
-
- break;
-#if 0 /* Critical interrupts not yet supported */
- case ASM_BOOKE_CRIT_VECTOR:
-#endif
- case ASM_60X_SYSMGMT_VECTOR:
- case ASM_EXT_VECTOR:
- BSP_irq_handle_at_ipic(excNum);
- break;
- }
- return 0;
-}
-
-void _ThreadProcessSignalsFromIrq (BSP_Exception_frame* ctx)
-{
- /*
- * Process pending signals that have not already been
- * processed by _Thread_Displatch. This happens quite
- * unfrequently : the ISR must have posted an action
- * to the current running thread.
- */
- if ( _Thread_Do_post_task_switch_extension ||
- _Thread_Executing->do_post_task_switch_extension ) {
- _Thread_Executing->do_post_task_switch_extension = FALSE;
- _API_extensions_Run_postswitch();
- }
-}
-
-/***********************************************************
- * functions to set/get/remove interrupt handlers
- ***********************************************************/
-int BSP_install_rtems_irq_handler (const rtems_irq_connect_data* irq)
-{
- rtems_interrupt_level level;
-
- /*
- * check for valid irq name
- * if invalid, print error and return 0
- */
- if (!BSP_IS_VALID_IRQ(irq->name)) {
- printk("Invalid interrupt vector %d\n",irq->name);
- return 0;
- }
-
- /*
- * disable interrupts
- */
- rtems_interrupt_disable(level);
- /*
- * check, that default handler is installed now
- */
- if (rtemsIrqTbl[irq->name].hdl != BSP_rtems_irq_config->defaultEntry.hdl) {
- rtems_interrupt_enable(level);
- printk("IRQ vector %d already connected\n",irq->name);
- return 0;
- }
- /*
- * store new handler data
- */
- rtemsIrqTbl[irq->name] = *irq;
-
- /*
- * enable irq at interrupt controller
- */
- if (BSP_IS_IPIC_IRQ(irq->name)) {
- BSP_irq_enable_at_ipic(irq->name);
- }
- /*
- * call "on" function to enable interrupt at device
- */
- irq->on(irq);
- /*
- * reenable interrupts
- */
- rtems_interrupt_enable(level);
-
- return 1;
-}
-
-int BSP_get_current_rtems_irq_handler (rtems_irq_connect_data* irq)
-{
- rtems_interrupt_level level;
-
- /*
- * check for valid IRQ name
- */
- if (!BSP_IS_VALID_IRQ(irq->name)) {
- return 0;
- }
- rtems_interrupt_disable(level);
- /*
- * return current IRQ entry
- */
- *irq = rtemsIrqTbl[irq->name];
- rtems_interrupt_enable(level);
- return 1;
-}
-
-int BSP_remove_rtems_irq_handler (const rtems_irq_connect_data* irq)
-{
- rtems_interrupt_level level;
-
- /*
- * check for valid IRQ name
- */
- if (!BSP_IS_VALID_IRQ(irq->name)) {
- return 0;
- }
- rtems_interrupt_disable(level);
- /*
- * check, that specified handler is really connected now
- */
- if (rtemsIrqTbl[irq->name].hdl != irq->hdl) {
- rtems_interrupt_enable(level);
- return 0;
- }
- /*
- * disable interrupt at interrupt controller
- */
- if (BSP_IS_IPIC_IRQ(irq->name)) {
- BSP_irq_disable_at_ipic(irq->name);
- }
- /*
- * disable interrupt at source
- */
- irq->off(irq);
- /*
- * restore default interrupt handler
- */
- rtemsIrqTbl[irq->name] = BSP_rtems_irq_config->defaultEntry;
-
- /*
- * reenable interrupts
- */
- rtems_interrupt_enable(level);
-
- return 1;
-}
-
-/***********************************************************
- * functions to set/get the basic interrupt management setup
- ***********************************************************/
-/*
- * (Re) get info on current RTEMS interrupt management.
- */
-int BSP_rtems_irq_mngt_get(rtems_irq_global_settings** ret_ptr)
-{
- *ret_ptr = BSP_rtems_irq_config;
- return 0;
-}
-
-
-/*
- * set management stuff
- */
-int BSP_rtems_irq_mngt_set(rtems_irq_global_settings* config)
-{
- int i;
- rtems_interrupt_level level;
-
- rtems_interrupt_disable(level);
- /*
- * store given configuration
- */
- BSP_rtems_irq_config = config;
- BSP_rtems_irq_tbl = BSP_rtems_irq_config->irqHdlTbl;
- /*
- * enable any non-empty IRQ entries at OPBINTC
- */
- for (i = BSP_IPIC_IRQ_LOWEST_OFFSET;
- i <= BSP_IPIC_IRQ_MAX_OFFSET;
- i++) {
- if (BSP_rtems_irq_tbl[i].hdl != config->defaultEntry.hdl) {
- BSP_irq_enable_at_ipic(i);
- BSP_rtems_irq_tbl[i].on((&BSP_rtems_irq_tbl[i]));
- }
- else {
- BSP_rtems_irq_tbl[i].off(&(BSP_rtems_irq_tbl[i]));
- BSP_irq_disable_at_ipic(i);
- }
- }
- /*
- * store any irq-like processor exceptions
- */
- for (i = BSP_PROCESSOR_IRQ_LOWEST_OFFSET;
- i < BSP_PROCESSOR_IRQ_MAX_OFFSET;
- i++) {
- if (BSP_rtems_irq_tbl[i].hdl != config->defaultEntry.hdl) {
- if (BSP_rtems_irq_tbl[i].on != NULL) {
- BSP_rtems_irq_tbl[i].on
- (&(BSP_rtems_irq_tbl[i]));
- }
- }
- else {
- if (BSP_rtems_irq_tbl[i].off != NULL) {
- BSP_rtems_irq_tbl[i].off
- (&(BSP_rtems_irq_tbl[i]));
- }
- }
- }
- rtems_interrupt_enable(level);
- return 1;
-}
-/**********************************************
- * list of exception vectors to tap for interrupt handlers
- */
-static rtems_raw_except_connect_data BSP_vec_desc[] = {
-#if defined(ASM_DEC_VECTOR)
- {ASM_DEC_VECTOR,
- {ASM_DEC_VECTOR,
- decrementer_exception_vector_prolog_code,
- (size_t)decrementer_exception_vector_prolog_code_size
- },
- exception_nop_enable,
- exception_nop_enable,
- exception_always_enabled
- },
-#endif
-#if defined(ASM_60X_SYSMGMT_VECTOR)
- {ASM_60X_SYSMGMT_VECTOR,
- {ASM_60X_SYSMGMT_VECTOR,
- sysmgmt_exception_vector_prolog_code,
- (size_t)sysmgmt_exception_vector_prolog_code_size
- },
- exception_nop_enable,
- exception_nop_enable,
- exception_always_enabled
- },
-#endif
- {ASM_EXT_VECTOR,
- {ASM_EXT_VECTOR,
- external_exception_vector_prolog_code,
- (size_t)&external_exception_vector_prolog_code_size
- },
- exception_nop_enable,
- exception_nop_enable,
- exception_always_enabled
- }
-#if 0 /* Critical interrupts not yet supported */
- ,{ASM_BOOKE_CRIT_VECTOR,
- {ASM_BOOKE_CRIT_VECTOR,
- critical_exception_vector_prolog_code,
- critical_exception_vector_prolog_code_size
- }
- BSP_irq_nop_func,
- BSP_irq_nop_func,
- BSP_irq_true_func
- }
-#endif
-};
-
-/*
- * dummy for an empty IRQ handler entry
- */
-static rtems_irq_connect_data emptyIrq = {
- 0, /* Irq Name */
- BSP_irq_nop_hdl, /* handler function */
- NULL, /* handle passed to handler */
- BSP_irq_nop_func, /* on function */
- BSP_irq_nop_func, /* off function */
- BSP_irq_true_func /* isOn function */
-};
-
-static rtems_irq_global_settings initialConfig = {
- BSP_IRQ_NUMBER, /* irqNb */
- { 0, /* Irq Name */
- BSP_irq_nop_hdl, /* handler function */
- NULL, /* handle passed to handler */
- BSP_irq_nop_func, /* on function */
- BSP_irq_nop_func, /* off function */
- BSP_irq_true_func /* isOn function */
- }, /* emptyIrq */
- rtemsIrqTbl, /* irqHdlTbl */
- 0, /* irqBase */
- NULL /* irqPrioTbl */
-};
-
-void BSP_rtems_irq_mng_init(unsigned cpuId)
-{
- int i;
- /*
- * connect all exception vectors needed
- */
- for (i = 0;
- i < (sizeof(BSP_vec_desc) /
- sizeof(BSP_vec_desc[0]));
- i++) {
- if (!ppc_set_exception (&BSP_vec_desc[i])) {
- BSP_panic("Unable to initialize RTEMS raw exception\n");
- }
- }
- /*
- * setup interrupt handlers table
- */
- for (i = 0;
- i < BSP_IRQ_NUMBER;
- i++) {
- rtemsIrqTbl[i] = emptyIrq;
- rtemsIrqTbl[i].name = i;
- }
-
- /*
- * initialize interrupt management
- */
- if (!BSP_rtems_irq_mngt_set(&initialConfig)) {
- BSP_panic("Unable to initialize RTEMS interrupt Management!!! System locked\n");
- }
-}
-
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