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Patch from Eric Valette <valette@crf.canon.fr> which brings the i386ex BSP

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inline with the new IRQ structure.
This commit is contained in:
Joel Sherrill
1998-08-05 16:51:39 +00:00
parent 0e3c009625
commit bd8c8b2a85
27 changed files with 379 additions and 578 deletions
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438
c/src/exec/score/cpu/i386/cpu_asm.s
View File

@@ -109,444 +109,6 @@ SYM (_CPU_Context_restore_fp):
frstor (eax) # restore FP context
ret
/*PAGE
* void _ISR_Handler()
*
* This routine provides the RTEMS interrupt management.
*
* NOTE:
* Upon entry, the stack will contain a stack frame back to the
* interrupted task. If dispatching is enabled, this is the
* outer most interrupt, and (a context switch is necessary or
* the current task has signals), then set up the stack to
* transfer control to the interrupt dispatcher.
*/
.set SET_SEGMENT_REGISTERS_IN_INTERRUPT, 0
.set SAVED_REGS , 32 # space consumed by saved regs
.set EIP_OFFSET , SAVED_REGS # offset of tasks eip
.set CS_OFFSET , EIP_OFFSET+4 # offset of tasks code segment
.set EFLAGS_OFFSET , CS_OFFSET+4 # offset of tasks eflags
.p2align 1
PUBLIC (_ISR_Handler)
SYM (_ISR_Handler):
/*
* Before this was point is reached the vectors unique
* entry point did the following:
*
* 1. saved all registers with a "pusha"
* 2. put the vector number in eax.
*
* BEGINNING OF ESTABLISH SEGMENTS
*
* WARNING: If an interrupt can occur when the segments are
* not correct, then this is where we should establish
* the segments. In addition to establishing the
* segments, it may be necessary to establish a stack
* in the current data area on the outermost interrupt.
*
* NOTE: If the previous values of the segment registers are
* pushed, do not forget to adjust SAVED_REGS.
*
* NOTE: Make sure the exit code which restores these
* when this type of code is needed.
*/
/***** ESTABLISH SEGMENTS CODE GOES HERE ******/
/*
* END OF ESTABLISH SEGMENTS
*/
/*
* Now switch stacks if necessary
*/
movl esp, edx # edx = previous stack pointer
cmpl $0, SYM (_ISR_Nest_level) # is this the outermost interrupt?
jne nested # No, then continue
movl SYM (_CPU_Interrupt_stack_high), esp
/*
* We want to insure that the old stack pointer is on the
* stack we will be on at the end of the ISR when we restore it.
* By saving it on every interrupt, all we have to do is pop it
* near the end of every interrupt.
*/
nested:
pushl edx # save the previous stack pointer
incl SYM (_ISR_Nest_level) # one nest level deeper
incl SYM (_Thread_Dispatch_disable_level) # disable multitasking
# EAX is preloaded with the vector number.
push eax # push vector number
mov SYM (_ISR_Vector_table) (,eax,4),eax
# eax = Users handler
call eax # invoke user ISR
pop eax # eax = vector number
decl SYM (_ISR_Nest_level) # one less ISR nest level
# If interrupts are nested,
# then dispatching is disabled
decl SYM (_Thread_Dispatch_disable_level)
# unnest multitasking
# Is dispatch disabled
jne exit # Yes, then exit
cmpl $0, SYM (_Context_Switch_necessary)
# Is task switch necessary?
jne bframe # Yes, then build stack
cmpl $0, SYM (_ISR_Signals_to_thread_executing)
# signals sent to Run_thread
# while in interrupt handler?
je exit # No, exit
bframe:
cli # DISABLE INTERRUPTS!!
popl esp # restore the stack pointer
movl $0, SYM (_ISR_Signals_to_thread_executing)
# push the isf for Isr_dispatch
push EFLAGS_OFFSET(esp) # push tasks eflags
push cs # cs of Isr_dispatch
push $ SYM (_ISR_Dispatch) # entry point
iret
exit:
cli # DISABLE INTERRUPTS!!
popl esp # restore the stack pointer
/*
* BEGINNING OF DE-ESTABLISH SEGMENTS
*
* NOTE: Make sure there is code here if code is added to
* load the segment registers.
*
*/
/******* DE-ESTABLISH SEGMENTS CODE GOES HERE ********/
/*
* END OF DE-ESTABLISH SEGMENTS
*/
popa # restore general registers
iret
/*PAGE
* Distinct Interrupt Entry Points
*
* The following macro and the 256 instantiations of the macro
* are necessary to determine which interrupt vector occurred.
* The following macro allows a unique entry point to be defined
* for each vector.
*
* NOTE: There are not spaces around the vector number argument
* to the DISTINCT_INTERRUPT_ENTRY macro because m4 will
* undesirably generate the symbol "_Isr_handler_ N"
* instead of "_Isr_handler_N" like we want.
*/
#define DISTINCT_INTERRUPT_ENTRY(_vector) \
.p2align 4 ; \
PUBLIC (_ISR_Handler_ ## _vector ) ; \
SYM (_ISR_Handler_ ## _vector ): \
pusha ; \
xor eax, eax ; \
movb $ ## _vector, al ; \
jmp SYM (_ISR_Handler) ;
DISTINCT_INTERRUPT_ENTRY(0)
DISTINCT_INTERRUPT_ENTRY(1)
DISTINCT_INTERRUPT_ENTRY(2)
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/*PAGE
* void _ISR_Dispatch()
*
* Entry point from the outermost interrupt service routine exit.
* The current stack is the supervisor mode stack.
*/
PUBLIC (_ISR_Dispatch)
SYM (_ISR_Dispatch):
call SYM (_Thread_Dispatch) # invoke Dispatcher
/*
* BEGINNING OF DE-ESTABLISH SEGMENTS
*
* NOTE: Make sure there is code here if code is added to
* load the segment registers.
*
*/
/***** DE-ESTABLISH SEGMENTS CODE GOES HERE ****/
/*
* END OF DE-ESTABLISH SEGMENTS
*/
popa # restore general registers
iret # return to interrupted thread
/*
* GO32 does not require these segment related routines.
*/

61
c/src/exec/score/cpu/i386/i386.h
View File

@@ -129,67 +129,6 @@ static inline unsigned int i386_swap_U16(
return (sout);
}
/*
* IO Port Access Routines
*/
#define i386_outport_byte( _port, _value ) \
{ register unsigned short __port = _port; \
register unsigned char __value = _value; \
\
asm volatile ( "outb %0,%1" : "=a" (__value), "=d" (__port) \
: "0" (__value), "1" (__port) \
); \
}
#define i386_outport_word( _port, _value ) \
{ register unsigned short __port = _port; \
register unsigned short __value = _value; \
\
asm volatile ( "outw %0,%1" : "=a" (__value), "=d" (__port) \
: "0" (__value), "1" (__port) \
); \
}
#define i386_outport_long( _port, _value ) \
{ register unsigned short __port = _port; \
register unsigned int __value = _value; \
\
asm volatile ( "outl %0,%1" : "=a" (__value), "=d" (__port) \
: "0" (__value), "1" (__port) \
); \
}
#define i386_inport_byte( _port, _value ) \
{ register unsigned short __port = _port; \
register unsigned char __value = 0; \
\
asm volatile ( "inb %1,%0" : "=a" (__value), "=d" (__port) \
: "0" (__value), "1" (__port) \
); \
_value = __value; \
}
#define i386_inport_word( _port, _value ) \
{ register unsigned short __port = _port; \
register unsigned short __value = 0; \
\
asm volatile ( "inw %1,%0" : "=a" (__value), "=d" (__port) \
: "0" (__value), "1" (__port) \
); \
_value = __value; \
}
#define i386_inport_long( _port, _value ) \
{ register unsigned short __port = _port; \
register unsigned int __value = 0; \
\
asm volatile ( "inl %1,%0" : "=a" (__value), "=d" (__port) \
: "0" (__value), "1" (__port) \
); \
_value = __value; \
}
/* routines */

67
c/src/lib/libbsp/i386/i386ex/clock/ckinit.c
View File

@@ -21,19 +21,16 @@
*/
#include <bsp.h>
#include <irq.h>
#include <rtems/libio.h>
#include <stdlib.h>
#define CLOCK_VECTOR 0x20
rtems_unsigned32 Clock_isrs; /* ISRs until next tick */
volatile rtems_unsigned32 Clock_driver_ticks;
rtems_isr_entry Old_ticker;
void Clock_exit( void );
/*
@@ -47,9 +44,7 @@ rtems_device_major_number rtems_clock_minor = 0;
* This is the ISR handler.
*/
rtems_isr Clock_isr(
rtems_vector_number vector
)
void Clock_isr()
{
/* enable_tracing(); */
Clock_driver_ticks += 1;
@@ -61,16 +56,13 @@ rtems_isr Clock_isr(
Clock_isrs -= 1;
}
void Install_clock(
rtems_isr_entry clock_isr
)
void ClockOff(const rtems_irq_connect_data* unused)
{
Clock_driver_ticks = 0;
Clock_isrs = BSP_Configuration.microseconds_per_tick / 1000;
if ( BSP_Configuration.ticks_per_timeslice ) {
Old_ticker = ( rtems_isr_entry ) set_vector( clock_isr, CLOCK_VECTOR, 1 );
/* should do something here */;
}
void ClockOn(const rtems_irq_connect_data* unused)
{
/* The following is already set up in interns.s ->
( This is test code only... production code will move the
TMRCFG stuff here )
@@ -81,24 +73,25 @@ void Install_clock(
#define TMRCON 0xF043
#define TMRCFG 0xF834
outport_byte ( TMRCFG , 0x80 );
outport_byte ( TMRCFG , 0x80 );
outport_byte ( TMRCON , 0x34 );
outport_byte ( TMR0 , 0xA8 );
outport_byte ( TMR0 , 0x04 );
outport_byte ( TMRCON , 0x34 );
outport_byte ( TMR0 , 0xA8 );
outport_byte ( TMR0 , 0x04 );
outport_byte ( TMRCFG , 0x00 );
}
atexit( Clock_exit );
outport_byte ( TMRCFG , 0x00 );
}
void Clock_exit( void )
int ClockIsOn(const rtems_irq_connect_data* unused)
{
if ( BSP_Configuration.ticks_per_timeslice ) {
/* should do something here */;
}
return ((i8259s_cache & 0x1) == 0);
}
static rtems_irq_connect_data clockIrqData = {PC_386_PERIODIC_TIMER,
Clock_isr,
ClockOn,
ClockOff,
ClockIsOn};
rtems_device_driver Clock_initialize(
rtems_device_major_number major,
@@ -106,8 +99,12 @@ rtems_device_driver Clock_initialize(
void *pargp
)
{
Install_clock( Clock_isr );
Clock_driver_ticks = 0;
Clock_isrs = BSP_Configuration.microseconds_per_tick / 1000;
if (!pc386_install_rtems_irq_handler (&clockIrqData)) {
printk("Unable to initialize system clock\n");
rtems_fatal_error_occurred(1);
}
/*
* make major/minor avail to others such as shared memory driver
*/
@@ -124,7 +121,6 @@ rtems_device_driver Clock_control(
void *pargp
)
{
rtems_unsigned32 isrlevel;
rtems_libio_ioctl_args_t *args = pargp;
if (args == 0)
@@ -137,16 +133,21 @@ rtems_device_driver Clock_control(
if (args->command == rtems_build_name('I', 'S', 'R', ' '))
{
Clock_isr(CLOCK_VECTOR);
Clock_isr();
}
else if (args->command == rtems_build_name('N', 'E', 'W', ' '))
{
rtems_interrupt_disable( isrlevel );
(void) set_vector( args->buffer, CLOCK_VECTOR, 1 );
rtems_interrupt_enable( isrlevel );
if (!pc386_install_rtems_irq_handler (&clockIrqData)) {
printk("Error installing clock interrupt handler!\n");
rtems_fatal_error_occurred(1);
}
}
done:
return RTEMS_SUCCESSFUL;
}
void Clock_exit()
{
pc386_remove_rtems_irq_handler (&clockIrqData);
}

9
c/src/lib/libbsp/i386/i386ex/console/Makefile.in
View File

@@ -10,8 +10,10 @@ PROJECT_ROOT = @PROJECT_ROOT@
PGM=${ARCH}/console.rel
IMPORT_SRC=$(srcdir)/../../shared/io/printk.c
# C source names, if any, go here -- minus the .c
C_PIECES=console
C_PIECES=console printk
C_FILES=$(C_PIECES:%=%.c)
C_O_FILES=$(C_PIECES:%=${ARCH}/%.o)
@@ -49,10 +51,13 @@ LDFLAGS +=
CLEAN_ADDITIONS +=
CLOBBER_ADDITIONS +=
preinstall:
${CP} ${IMPORT_SRC} .
${PGM}: ${SRCS} ${OBJS}
$(make-rel)
all: ${ARCH} $(SRCS) $(PGM)
all: ${ARCH} preinstall $(SRCS) $(PGM)
# the .rel file built here will be put into libbsp.a by ../wrapup/Makefile
install: all

19
c/src/lib/libbsp/i386/i386ex/console/console.c
View File

@@ -16,7 +16,7 @@
#include <bsp.h>
#include <rtems/libio.h>
#include <bspIo.h>
#include <stdlib.h>
#include "../start/80386ex.h"
@@ -109,6 +109,18 @@ rtems_boolean is_character_ready(
return FALSE;
}
/*
* Wait for an input. May be used before intr are ON.
*/
char BSP_wait_polled_input( void )
{
char c;
while (!is_character_ready(&c))
continue;
return c;
}
/* inbyte
*
* This routine reads a character from the UART.
@@ -277,3 +289,8 @@ rtems_device_driver console_control(
{
return RTEMS_SUCCESSFUL;
}
BSP_output_char_function_type BSP_output_char = outbyte;
BSP_polling_getchar_function_type BSP_poll_char = BSP_wait_polled_input;
void BSP_emergency_output_init() {}

10
c/src/lib/libbsp/i386/i386ex/include/bsp.h
View File

@@ -23,7 +23,9 @@ extern "C" {
#include <iosupp.h>
#include <console.h>
#include <clockdrv.h>
#include <bspIo.h>
#include <irq.h>
/*
* Define the time limits for RTEMS Test Suite test durations.
* Long test and short test duration limits are provided. These
@@ -129,12 +131,6 @@ BSP_EXTERN unsigned int Gdt_base;
/* routines */
i386_isr_entry set_vector(
rtems_isr_entry handler,
rtems_vector_number vector,
int type
);
#ifdef __cplusplus
}
#endif

24
c/src/lib/libbsp/i386/i386ex/start/start.s
View File

@@ -33,6 +33,10 @@
#include "macros.inc"
#include "80386ex.inc"
/*
* Needed for binutils 2.9.1.0.7 and higher
* #define NEXT_GAS
*/
EXTERN (main) /* exits to bspstart */
EXTERN (stack_start) /* defined in startup/linkcmds */
@@ -179,6 +183,9 @@ SYM(reset):
.code16
nop
cli
#ifdef NEXT_GAS
addr32
#endif
jmp SYM(_initInternalRegisters) /* different section in this file */
.code32 /* in case this section moves */
nop /* required by CHIP LAB to pad out size */
@@ -192,8 +199,8 @@ SYM(reset):
/*
* Enable access to peripheral register at expanded I/O addresses
*/
.code16
SYM(_initInternalRegisters):
.code16
movw $0x8000 , ax
outb al , $REMAPCFGH
xchg al , ah
@@ -406,8 +413,8 @@ SYM(InitInt):
SetExRegByte(ICW1M , 0x11 ) # edge triggered
SetExRegByte(ICW2M , 0x20 ) # base vector starts at byte 32
SetExRegByte(ICW3M , 0x04 ) # IR2 is cascaded internally
SetExRegByte(ICW4M , 0X03 ) # AEOI MODE FIRST!
SetExRegByte(ICW3M , 0x02 ) # IR2 is cascaded internally
SetExRegByte(ICW4M , 0x01 ) # idem
SetExRegByte(OCW1M , 0xde ) # IR0 only = 0xfe. for IR5 and IR0 active use 0xde
SetExRegByte(INTCFG , 0x00 )
@@ -481,7 +488,10 @@ SYM(xfer_gdt):
movw $ _ram_gdt_segment, ax
mov ax , ds
#ifdef NEXT_GAS
data32
addr32
#endif
lgdt _ram_gdt_offset # location of GDT
@@ -494,16 +504,16 @@ SYM(SetUCS):
/***************************
* Switch to Protected Mode
***************************/
mov %cr0, eax
mov cr0, eax
orw $0x1, ax
mov eax, %cr0
mov eax, cr0
/**************************
* Flush prefetch queue,
* and load CS selector
*********************/
ljmp $ GDT_CODE_PTR , $ SYM(_copy_data) # sets the code selector
ljmpl $ GDT_CODE_PTR , $ SYM(_copy_data) # sets the code selector
/*
* Copy the data section down to RAM
*/

12
c/src/lib/libbsp/i386/i386ex/startup/Makefile.in
View File

@@ -10,8 +10,11 @@ PROJECT_ROOT = @PROJECT_ROOT@
PGM=${ARCH}/startup.rel
IMPORT_SRC=$(srcdir)/../../shared/irq/irq.c \
$(srcdir)/../../shared/irq/irq_init.c $(srcdir)/../../shared/irq/irq_asm.s
# C source names, if any, go here -- minus the .c
C_PIECES=bspclean bsplibc bsppost bspstart main sbrk setvec
C_PIECES=bspclean bsplibc bsppost bspstart main sbrk irq irq_init
C_FILES=$(C_PIECES:%=%.c)
C_O_FILES=$(C_PIECES:%=${ARCH}/%.o)
@@ -19,7 +22,7 @@ H_FILES=
# Assembly source names, if any, go here -- minus the .s
# removed initcsu piece, ldsegs piece and flush
S_PIECES=
S_PIECES=irq_asm
S_FILES=$(S_PIECES:%=%.s)
S_O_FILES=$(S_FILES:%.s=${ARCH}/%.o)
@@ -52,9 +55,12 @@ LDFLAGS +=
CLEAN_ADDITIONS +=
CLOBBER_ADDITIONS +=
preinstall:
${CP} ${IMPORT_SRC} .
${PGM}: ${SRCS} ${OBJS}
$(make-rel)
all: ${ARCH} $(SRCS) $(PGM)
all: ${ARCH} preinstall $(SRCS) $(PGM)
$(INSTALL) $(srcdir)/linkcmds ${PROJECT_RELEASE}/lib
# the .rel file built here will be put into libbsp.a by ../wrapup/Makefile

5
c/src/lib/libbsp/i386/i386ex/startup/bspstart.c
View File

@@ -114,5 +114,8 @@ void bsp_start( void )
*/
/* console_reserve_resources( &BSP_Configuration ); */
/*
* Init rtems_interrupt_management
*/
rtems_irq_mngt_init();
}

60
c/src/lib/libbsp/i386/i386ex/timer/timer.c
View File

@@ -27,11 +27,13 @@
#include <rtems.h>
#include <bsp.h>
#include <stdlib.h>
int Ttimer_val;
rtems_boolean Timer_driver_Find_average_overhead;
rtems_isr timerisr();
extern void timerisr();
extern int ClockIsOn(const rtems_raw_irq_connect_data*);
#define TMR0 0xF040
#define TMR1 0xF041
@@ -39,11 +41,9 @@ rtems_isr timerisr();
#define TMRCON 0xF043
#define TMRCFG 0xF834
void Timer_initialize()
void TimerOn(const rtems_raw_irq_connect_data* used)
{
(void) set_vector( timerisr, 0x2a, 0 ); /* install ISR ( IR2 ) was 0x38*/
Ttimer_val = 0; /* clear timer ISR count */
outport_byte ( TMRCON , 0xb0 ); /* select tmr2, stay in mode 0 */
@@ -51,8 +51,58 @@ void Timer_initialize()
outport_byte ( TMR1 , 0x00 );
outport_byte ( TMRCON , 0x64 ); /* change to mode 2 ( starts timer ) */
/* interrupts ARE enabled */
/* outport_byte( IERA, 0x41 ); enable interrupt */
/* outport_byte( IERA, 0x41 ); enable interrupt */
/*
* enable interrrupt at i8259 level
*/
pc386_irq_enable_at_i8259s(used->idtIndex - PC386_IRQ_VECTOR_BASE);
}
void TimerOff(const rtems_raw_irq_connect_data* used)
{
/*
* disable interrrupt at i8259 level
*/
pc386_irq_disable_at_i8259s(used->idtIndex - PC386_IRQ_VECTOR_BASE);
/* reset timer mode to standard (DOS) value */
}
static rtems_raw_irq_connect_data timer_raw_irq_data = {
PC_386_RT_TIMER3 + PC386_IRQ_VECTOR_BASE,
timerisr,
TimerOn,
TimerOff,
ClockIsOn
};
void Timer_exit()
{
if (!i386_delete_idt_entry(&timer_raw_irq_data)) {
printk("Timer raw handler deconnexion failed\n");
rtems_fatal_error_occurred(1);
}
}
void Timer_initialize()
{
static rtems_boolean First = TRUE;
if (First)
{
First = FALSE;
atexit(Timer_exit); /* Try not to hose the system at exit. */
if (!i386_set_idt_entry (&timer_raw_irq_data)) {
printk("raw handler connexion failed\n");
rtems_fatal_error_occurred(1);
}
}
/* wait for ISR to be called at least once */
Ttimer_val = 0;
while (Ttimer_val == 0)
continue;
Ttimer_val = 0;
}
#define AVG_OVERHEAD 3 /* It typically takes 3.0 microseconds */

6
c/src/lib/libbsp/i386/i386ex/timer/timerisr.s
View File

@@ -28,6 +28,12 @@
PUBLIC (timerisr)
SYM (timerisr):
addl $250, SYM (Ttimer_val) # another 250 microseconds
pushl eax
movb 0xa0,al /* signal generic End Of Interrupt (EOI) to slave PIC */
outb al, $0x20
movb $0x20, al
outb al, $0x20 /* signal generic EOI to Master PIC */
popl eax
iret
END_CODE

7
c/src/lib/libbsp/i386/pc386/console/Makefile.in
View File

@@ -10,6 +10,8 @@ PROJECT_ROOT = @PROJECT_ROOT@
PGM=${ARCH}/console.rel
IMPORT_SRC=$(srcdir)/../../shared/io/printk.c
# C source names, if any, go here -- minus the .c
C_PIECES=console inch outch printk
C_FILES=$(C_PIECES:%=%.c)
@@ -50,10 +52,13 @@ LDFLAGS +=
CLEAN_ADDITIONS +=
CLOBBER_ADDITIONS +=
preinstall:
${CP} ${IMPORT_SRC} .
${PGM}: ${SRCS} ${OBJS}
$(make-rel)
all: ${ARCH} $(SRCS) $(PGM)
all: ${ARCH} preinstall $(SRCS) $(PGM)
# the .rel file built here will be put into libbsp.a by ../wrapup/Makefile
install: all

12
c/src/lib/libbsp/i386/pc386/console/console.c
View File

@@ -61,6 +61,8 @@ static rtems_irq_connect_data console_isr_data = {PC_386_KEYBOARD,
extern rtems_boolean _IBMPC_scankey(char *); /* defined in 'inch.c' */
extern BSP_polling_getchar_function_type BSP_wait_polled_input();
extern void _IBMPC_initVideo();
void console_reserve_resources(rtems_configuration_table *conf)
{
@@ -475,6 +477,16 @@ conSetAttr(int minor, const struct termios *t)
return 0;
}
/*
* BSP initialization
*/
BSP_output_char_function_type BSP_output_char = (BSP_output_char_function_type) _IBMPC_outch;
BSP_polling_getchar_function_type BSP_poll_char = BSP_wait_polled_input;
void BSP_emergency_output_init()
{
_IBMPC_initVideo();
}

2
c/src/lib/libbsp/i386/pc386/console/inch.c
View File

@@ -295,7 +295,7 @@ _IBMPC_inch(void)
*/
char
debugPollingGetChar(void)
BSP_wait_polled_input(void)
{
char c;
while (!_IBMPC_scankey(&c))

1
c/src/lib/libbsp/i386/pc386/include/bsp.h
View File

@@ -52,6 +52,7 @@ extern "C" {
#include <console.h>
#include <clockdrv.h>
#include <libcpu/cpu.h>
#include <bspIo.h>
/*-------------------------------------------------------------------------+
| Constants

2
c/src/lib/libbsp/i386/pc386/startup/Makefile.in
View File

@@ -58,7 +58,7 @@ preinstall:
${PGM}: ${SRCS} ${OBJS}
$(make-rel)
all: ${ARCH} $(SRCS) $(PGM)
all: ${ARCH} preinstall $(SRCS) $(PGM)
$(INSTALL) $(srcdir)/linkcmds ${PROJECT_RELEASE}/lib
# the .rel file built here will be put into libbsp.a by ../wrapup/Makefile

2
c/src/lib/libbsp/i386/pc386/timer/timer.c
View File

@@ -176,7 +176,7 @@ void timerOn(const rtems_raw_irq_connect_data* used)
outport_byte(TIMER_CNTR0, US_TO_TICK(US_PER_ISR) >> 0 & 0xff);
outport_byte(TIMER_CNTR0, US_TO_TICK(US_PER_ISR) >> 8 & 0xff);
/*
* disable interrrupt at i8259 level
* enable interrrupt at i8259 level
*/
pc386_irq_enable_at_i8259s(used->idtIndex - PC386_IRQ_VECTOR_BASE);
}

2
c/src/lib/libbsp/i386/shared/Makefile.in
View File

@@ -12,5 +12,5 @@ include $(RTEMS_ROOT)/make/custom/$(RTEMS_BSP).cfg
include $(RTEMS_ROOT)/make/directory.cfg
# Descend into the $(RTEMS_BSP_FAMILY) directory
SUB_DIRS=irq
SUB_DIRS=irq io

33
c/src/lib/libbsp/i386/shared/io/Makefile.in Normal file
View File

@@ -0,0 +1,33 @@
#
# $Id$
#
@SET_MAKE@
srcdir = @srcdir@
VPATH = @srcdir@
RTEMS_ROOT = @top_srcdir@
PROJECT_ROOT = @PROJECT_ROOT@
H_FILES = $(srcdir)/bspIo.h
#
# Equate files are for including from assembly preprocessed by
# gm4 or gasp. No examples are provided except for those for
# other CPUs. The best way to generate them would be to
# provide a program which generates the constants used based
# on the C equivalents.
#
EQ_FILES =
SRCS=$(H_FILES) $(EQ_FILES)
include $(RTEMS_ROOT)/make/custom/$(RTEMS_BSP).cfg
include $(RTEMS_ROOT)/make/leaf.cfg
CLEAN_ADDITIONS +=
CLOBBER_ADDITIONS +=
preinstall all: $(SRCS)
$(INSTALL) -m 444 $(H_FILES) $(PROJECT_INCLUDE)
$(INSTALL) -m 444 $(EQ_FILES) $(PROJECT_INCLUDE)

38
c/src/lib/libbsp/i386/shared/io/bspIo.h Normal file
View File

@@ -0,0 +1,38 @@
/* bspIo.h
*
* This include file contains declaration of interface that
* will be provided by the file contained in this directory.
*
*
* COPYRIGHT (c) 1998 valette@crf.canon.fr
*
* The license and distribution terms for this file may be
* found in found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#ifndef _LIBBSP_I386_SHARED_IO_BSP_IO_H
#define _LIBBSP_I386_SHARED_IO_BSP_IO_H
/*
* All the functions declared as extern after this comment
* MUST be implemented in each BSP. Using this function,
* this directory contains shared code that export higher level
* functionnality described after the next command.
*/
typedef void (*BSP_output_char_function_type) (char c);
typedef char (*BSP_polling_getchar_function_type) (char c);
extern BSP_output_char_function_type BSP_output_char;
extern BSP_polling_getchar_function_type BSP_poll_char;
extern void BSP_emergency_output_init();
/*
* All the function declared as extern after this comment
* are available for each ix86 BSP by compiling and linking
* the files contained in this directory PROVIDED definition
* and initialisation of the previous variable are done.
*/
void printk(char *fmt, ...);
#endif

99
c/src/lib/libbsp/i386/shared/io/printk.c Normal file
View File

@@ -0,0 +1,99 @@
/*-------------------------------------------------------------------------+
| printk.c v1.1 - PC386 BSP - 1997/08/07
+--------------------------------------------------------------------------+
| (C) Copyright 1997 -
| - NavIST Group - Real-Time Distributed Systems and Industrial Automation
|
| http://pandora.ist.utl.pt
|
| Instituto Superior Tecnico * Lisboa * PORTUGAL
+--------------------------------------------------------------------------+
| Disclaimer:
|
| This file is provided "AS IS" without warranty of any kind, either
| expressed or implied.
+--------------------------------------------------------------------------+
| This code is based on code by: Jose Rufino - IST
|
| $Id$
+--------------------------------------------------------------------------*/
#include <stdarg.h>
#include <bspIo.h>
/*-------------------------------------------------------------------------+
| Function: printNum
| Description: print number in a given base.
| Global Variables: None.
| Arguments: num - number to print, base - base used to print the number.
| Returns: Nothing.
+--------------------------------------------------------------------------*/
static void
printNum(long int num, int base)
{
long int n;
if ((n = num / base) > 0)
printNum(n, base);
BSP_output_char("0123456789ABCDEF"[(int)(num % base)]);
} /* printNum */
/*-------------------------------------------------------------------------+
| Function: printk
| Description: a simplified version of printf intended for use when the
console is not yet initialized or in ISR's.
| Global Variables: None.
| Arguments: as in printf: fmt - format string, ... - unnamed arguments.
| Returns: Nothing.
+--------------------------------------------------------------------------*/
void
printk(char *fmt, ...)
{
va_list ap; /* points to each unnamed argument in turn */
char c, *str;
int lflag, base;
va_start(ap, fmt); /* make ap point to 1st unnamed arg */
for (; *fmt != '\0'; fmt++)
{
lflag = 0;
base = 0;
if (*fmt == '%')
{
if ((c = *++fmt) == 'l')
{
lflag = 1;
c = *++fmt;
}
switch (c)
{
case 'o': case 'O': base = 8; break;
case 'd': case 'D': base = 10; break;
case 'x': case 'X': base = 16; break;
case 's':
for (str = va_arg(ap, char *); *str; str++)
BSP_output_char(*str);
break;
case 'c':
BSP_output_char(va_arg(ap, char));
break;
default:
BSP_output_char(c);
break;
} /* switch*/
if (base)
printNum(lflag ? va_arg(ap, long int) : (long int)va_arg(ap, int),
base);
}
else
{
BSP_output_char(*fmt);
}
}
va_end(ap); /* clean up when done */
} /* printk */

5
c/src/lib/libbsp/i386/shared/irq/irq.h
View File

@@ -55,8 +55,9 @@ typedef enum {
PC386_UART_COM1_IRQ = 4,
PC_386_RT_TIMER1 = 8
PC_386_RT_TIMER1 = 8,
PC_386_RT_TIMER3 = 10
}rtems_irq_symbolic_name;

9
c/src/lib/libbsp/i386/shared/irq/irq_init.c
View File

@@ -15,6 +15,7 @@
#include <libcpu/cpu.h>
#include <irq.h>
#include <bsp.h>
#include <bspIo.h>
/*
* rtems prologue generated in irq_asm.S
@@ -137,7 +138,7 @@ void rtems_irq_mngt_init()
/*
* put something here that will show the failure...
*/
_IBMPC_initVideo();
BSP_emergency_output_init();
printk("Unable to initialize IDT!!! System locked\n");
while (1);
}
@@ -172,7 +173,7 @@ void rtems_irq_mngt_init()
/*
* put something here that will show the failure...
*/
_IBMPC_initVideo();
BSP_emergency_output_init();
printk("Unable to initialize RTEMS interrupt Management!!! System locked\n");
while (1);
}
@@ -187,7 +188,7 @@ void rtems_irq_mngt_init()
*/
unsigned tmp;
_IBMPC_initVideo();
BSP_emergency_output_init();
printk("idt_entry_tbl = %x Interrupt_descriptor_table addr = %x\n",
idt_entry_tbl, &Interrupt_descriptor_table);
@@ -196,7 +197,7 @@ void rtems_irq_mngt_init()
tmp, (unsigned) rtems_irq_prologue_0);
}
printk("i8259s_cache = %x\n", * (unsigned short*) &i8259s_cache);
debugPollingGetChar();
BSP_wait_polled_input();
#endif
asm volatile ("sti");
}

11
c/src/lib/libcpu/i386/Makefile.in
View File

@@ -8,7 +8,6 @@ VPATH = @srcdir@
RTEMS_ROOT = @top_srcdir@
PROJECT_ROOT = @PROJECT_ROOT@
PGM=${ARCH}/libcpu.rel
# C source names, if any, go here -- minus the .c
C_PIECES=cpu displayCpu
@@ -26,7 +25,9 @@ SRCS=$(C_FILES) $(H_FILES)
OBJS=$(C_O_FILES) $(S_O_FILES)
include $(RTEMS_ROOT)/make/custom/$(RTEMS_BSP).cfg
include $(RTEMS_ROOT)/make/leaf.cfg
include $(RTEMS_ROOT)/make/lib.cfg
LIB=${ARCH}/libcpuspec.a
#
# (OPTIONAL) Add local stuff here using +=
@@ -50,14 +51,14 @@ LDFLAGS +=
CLEAN_ADDITIONS +=
CLOBBER_ADDITIONS +=
${PGM}: ${SRCS} ${OBJS}
$(make-rel)
${LIB}: ${SRCS} ${OBJS}
$(make-library)
preinstall :
$(MKDIR) $(PROJECT_INCLUDE)/libcpu
$(INSTALL) -m 444 ${H_FILES} $(PROJECT_INCLUDE)/libcpu
all: ${ARCH} $(SRCS) preinstall $(OBJ) $(PGM)
all: ${ARCH} $(SRCS) preinstall $(OBJ) $(LIB)
cd wrapup; $(MAKE)
# the .rel file built here will be put into libcpu.a by ../wrapup/Makefile

2
c/src/lib/libcpu/i386/cpuModel.h
View File

@@ -29,4 +29,4 @@ extern char x86_vendor_id[13];
extern int have_cpuid;
extern unsigned char Cx86_step; /* cyrix processor identification */
extern voidget_cpuinfo(); /* Display this information in ascii form */
extern void printCpuInfo(); /* Display this information on console in ascii form */

2
c/src/lib/libcpu/i386/displayCpu.c
View File

@@ -173,7 +173,7 @@ static const char * getmodel(int x86, int model)
void printCpuInfo()
{
int i, len = 0;
int i;
static const char *x86_cap_flags[] = {
"fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce",
"cx8", "apic", "10", "11", "mtrr", "pge", "mca", "cmov",

19
c/src/lib/libcpu/i386/wrapup/Makefile.in
View File

@@ -12,7 +12,7 @@ BSP_PIECES=startup clock console timer
GENERIC_PIECES=
# bummer; have to use $foreach since % pattern subst rules only replace 1x
OBJS=../$(ARCH)/libcpu.rel
OBJS=../$(ARCH)/libcpuspec.a
LIB=$(ARCH)/libcpu.a
include $(RTEMS_ROOT)/make/custom/$(RTEMS_BSP).cfg
@@ -41,7 +41,22 @@ CLEAN_ADDITIONS +=
CLOBBER_ADDITIONS +=
$(LIB): ${OBJS}
$(make-library)
@ list_of_o_files=""; \
for i in ${OBJS}; \
do \
DIRNAME=`dirname ${OBJS}` ; \
temp=`$(AR) t $$i`; \
echo $$temp ;\
echo $$DIRNAME ;\
for j in $$temp; \
do \
list_of_o_files="$$list_of_o_files $$DIRNAME/$$j"; \
done ;\
echo $$list_of_o_files ;\
done ;\
$(RM) $@ ;\
$(AR) $(ARFLAGS) $@ $$list_of_o_files ;\
$(MKLIB) $@
all: ${ARCH} $(SRCS) $(LIB)
$(INSTALL_VARIANT) -m 644 $(LIB) ${PROJECT_RELEASE}/lib