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authorJoel Sherrill <joel.sherrill@OARcorp.com>1995-09-11 19:35:39 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>1995-09-11 19:35:39 +0000
commit3a4ae6c210bcc37754767966f1128ae23c77b6af (patch)
tree8804983e5b92bec788d548df13db7513118d351d /c/src/lib/libbsp/m68k/gen68302
parentnew file -- split from inlines (diff)
downloadrtems-3a4ae6c210bcc37754767966f1128ae23c77b6af.tar.bz2
The word "RTEMS" almost completely removed from the core.
Configuration Table Template file added and all tests modified to use this. All gvar.h and conftbl.h files removed from test directories. Configuration parameter maximum_devices added. Core semaphore and mutex handlers added and RTEMS API Semaphore Manager updated to reflect this. Initialization sequence changed to invoke API specific initialization routines. Initialization tasks table now owned by RTEMS Tasks Manager. Added user extension for post-switch. Utilized user extensions to implement API specific functionality like signal dispatching. Added extensions to the System Initialization Thread so that an API can register a function to be invoked while the system is being initialized. These are largely equivalent to the pre-driver and post-driver hooks. Added the Modules file oar-go32_p5, modified oar-go32, and modified the file make/custom/go32.cfg to look at an environment varable which determines what CPU model is being used. All BSPs updated to reflect named devices and clock driver's IOCTL used by the Shared Memory Driver. Also merged clock isr into main file and removed ckisr.c where possible. Updated spsize to reflect new and moved variables. Makefiles for the executive source and include files updated to show break down of files into Core, RTEMS API, and Neither. Header and inline files installed into subdirectory based on whether logically in the Core or a part of the RTEMS API.
Diffstat (limited to '')
-rw-r--r--c/src/lib/libbsp/m68k/gen68302/clock/ckinit.c98
-rw-r--r--c/src/lib/libbsp/m68k/gen68302/console/console.c127
-rw-r--r--c/src/lib/libbsp/m68k/gen68302/include/bsp.h20
-rw-r--r--c/src/lib/libbsp/m68k/gen68302/start/start302.s5
-rw-r--r--c/src/lib/libbsp/m68k/gen68302/start302/start302.s5
-rw-r--r--c/src/lib/libbsp/m68k/gen68302/startup/bspstart.c63
6 files changed, 267 insertions, 51 deletions
diff --git a/c/src/lib/libbsp/m68k/gen68302/clock/ckinit.c b/c/src/lib/libbsp/m68k/gen68302/clock/ckinit.c
index be3cf6ab21..f842bbc83c 100644
--- a/c/src/lib/libbsp/m68k/gen68302/clock/ckinit.c
+++ b/c/src/lib/libbsp/m68k/gen68302/clock/ckinit.c
@@ -20,11 +20,12 @@
#include <stdlib.h> /* for atexit() */
-#include <rtems.h>
#include <bsp.h>
-#include <clockdrv.h>
+#include <rtems/libio.h>
+
#include "m68302.h"
+#define CLOCK_VECTOR 137
#define TMR1_VAL ( RBIT_TMR_RST /* software reset the timer */\
| RBIT_TMR_ICLK_MASTER16 /* master clock divided by 16 */\
@@ -49,18 +50,35 @@ volatile rtems_unsigned32 Clock_driver_ticks;
*/
rtems_unsigned32 Clock_isrs;
+void Clock_exit( void );
+
+/*
+ * These are set by clock driver during its init
+ */
+
+rtems_device_major_number rtems_clock_major = ~0;
+rtems_device_minor_number rtems_clock_minor;
-rtems_device_driver Clock_initialize(
- rtems_device_major_number major,
- rtems_device_minor_number minor,
- void *pargp,
- rtems_id tid,
- rtems_unsigned32 *rval
+/*
+ * ISR Handler
+ */
+
+rtems_isr Clock_isr(
+ rtems_vector_number vector
)
{
- Install_clock( Clock_isr );
-}
+ Clock_driver_ticks += 1;
+ m302.reg.isr = RBIT_ISR_TIMER1; /* clear in-service bit */
+ m302.reg.ter1 = (RBIT_TER_REF | RBIT_TER_CAP); /* clear timer intr request */
+
+ if ( Clock_isrs == 1 ) {
+ rtems_clock_tick();
+ Clock_isrs = BSP_Configuration.microseconds_per_tick / 1000;
+ }
+ else
+ Clock_isrs -= 1;
+}
void Install_clock(
rtems_isr_entry clock_isr
@@ -71,7 +89,7 @@ void Install_clock(
Clock_isrs = BSP_Configuration.microseconds_per_tick / 1000;
if ( BSP_Configuration.ticks_per_timeslice ) {
-/* set_vector( clock_isr, 137, 1 );*/
+/* set_vector( clock_isr, CLOCK_VECTOR, 1 );*/
m302.reg.trr1 = TRR1_VAL; /* set timer reference register */
m302.reg.tmr1 = TMR1_VAL; /* set timer mode register & enable */
@@ -84,6 +102,16 @@ void Install_clock(
}
}
+void ReInstall_clock(
+ rtems_isr_entry clock_isr
+)
+{
+ rtems_unsigned32 isrlevel;
+
+ rtems_interrupt_disable( isrlevel );
+ /* (void) set_vector( clock_isr, CLOCK_VECTOR, 1 ); */
+ rtems_interrupt_enable( isrlevel );
+}
void Clock_exit( void )
{
@@ -92,3 +120,51 @@ void Clock_exit( void )
/* do not restore old vector */
}
}
+
+rtems_device_driver Clock_initialize(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *pargp
+)
+{
+ Install_clock( Clock_isr );
+
+ /*
+ * make major/minor avail to others such as shared memory driver
+ */
+
+ rtems_clock_major = major;
+ rtems_clock_minor = minor;
+
+ return RTEMS_SUCCESSFUL;
+}
+
+rtems_device_driver Clock_control(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *pargp
+)
+{
+ rtems_libio_ioctl_args_t *args = pargp;
+
+ if (args == 0)
+ goto done;
+
+ /*
+ * This is hokey, but until we get a defined interface
+ * to do this, it will just be this simple...
+ */
+
+ if (args->command == rtems_build_name('I', 'S', 'R', ' '))
+ {
+ Clock_isr( CLOCK_VECTOR);
+ }
+ else if (args->command == rtems_build_name('N', 'E', 'W', ' '))
+ {
+ ReInstall_clock(args->buffer);
+ }
+
+done:
+ return RTEMS_SUCCESSFUL;
+}
+
diff --git a/c/src/lib/libbsp/m68k/gen68302/console/console.c b/c/src/lib/libbsp/m68k/gen68302/console/console.c
index 7f488c5cfd..dd461e4557 100644
--- a/c/src/lib/libbsp/m68k/gen68302/console/console.c
+++ b/c/src/lib/libbsp/m68k/gen68302/console/console.c
@@ -14,9 +14,8 @@
#define GEN68302_INIT
-#include <rtems.h>
-#include "console.h"
#include <bsp.h>
+#include <rtems/libio.h>
#include "m68302.h"
@@ -34,11 +33,10 @@
rtems_device_driver console_initialize(
rtems_device_major_number major,
rtems_device_minor_number minor,
- void *arg,
- rtems_id self,
- rtems_unsigned32 *status
+ void *arg
)
{
+ rtems_status_code status;
volatile m302_dualPortRAM_t *p = &m302;
p->reg.pacnt |= 0x0003; /* enable RXD2 and TXD2 signals */
@@ -81,9 +79,18 @@ rtems_device_driver console_initialize(
p->reg.scc[1].sccm = 0x03; /* enable only Tx & Rx interrupts */
p->reg.scc[1].scm = 0x01BD;
- *status = RTEMS_SUCCESSFUL;
-}
+ status = rtems_io_register_name(
+ "/dev/console",
+ major,
+ (rtems_device_minor_number) 0
+ );
+
+ if (status != RTEMS_SUCCESSFUL)
+ rtems_fatal_error_occurred(status);
+
+ return RTEMS_SUCCESSFUL;
+}
/* is_character_ready
*
@@ -194,48 +201,102 @@ void outbyte(
}
/*
- * __read -- read bytes from the serial port. Ignore fd, since
- * we only have stdin.
+ * Open entry point
+ */
+
+rtems_device_driver console_open(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void * arg
+)
+{
+ return RTEMS_SUCCESSFUL;
+}
+
+/*
+ * Close entry point
*/
-int __read(
- int fd,
- char *buf,
- int nbytes
+rtems_device_driver console_close(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void * arg
)
{
- int i = 0;
+ return RTEMS_SUCCESSFUL;
+}
+
+/*
+ * read bytes from the serial port. We only have stdin.
+ */
- for (i = 0; i < nbytes; i++) {
- *(buf + i) = inbyte();
- if ((*(buf + i) == '\n') || (*(buf + i) == '\r')) {
- (*(buf + i++)) = '\n';
- (*(buf + i)) = 0;
+rtems_device_driver console_read(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void * arg
+)
+{
+ rtems_libio_rw_args_t *rw_args;
+ char *buffer;
+ int maximum;
+ int count = 0;
+
+ rw_args = (rtems_libio_rw_args_t *) arg;
+
+ buffer = rw_args->buffer;
+ maximum = rw_args->count;
+
+ for (count = 0; count < maximum; count++) {
+ buffer[ count ] = inbyte();
+ if (buffer[ count ] == '\n' || buffer[ count ] == '\r') {
+ buffer[ count++ ] = '\n';
+ buffer[ count ] = 0;
break;
}
}
- return (i);
+
+ rw_args->bytes_moved = count;
+ return (count >= 0) ? RTEMS_SUCCESSFUL : RTEMS_UNSATISFIED;
}
/*
- * __write -- write bytes to the serial port. Ignore fd, since
- * stdout and stderr are the same. Since we have no filesystem,
- * open will only return an error.
+ * write bytes to the serial port. Stdout and stderr are the same.
*/
-int __write(
- int fd,
- char *buf,
- int nbytes
+rtems_device_driver console_write(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void * arg
)
{
- int i;
+ int count;
+ int maximum;
+ rtems_libio_rw_args_t *rw_args;
+ char *buffer;
- for (i = 0; i < nbytes; i++) {
- if (*(buf + i) == '\n') {
- outbyte ('\r');
+ rw_args = (rtems_libio_rw_args_t *) arg;
+
+ buffer = rw_args->buffer;
+ maximum = rw_args->count;
+
+ for (count = 0; count < maximum; count++) {
+ if ( buffer[ count ] == '\n') {
+ outbyte('\r');
}
- outbyte (*(buf + i));
+ outbyte( buffer[ count ] );
}
- return (nbytes);
+ return maximum;
+}
+
+/*
+ * IO Control entry point
+ */
+
+rtems_device_driver console_control(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void * arg
+)
+{
+ return RTEMS_SUCCESSFUL;
}
diff --git a/c/src/lib/libbsp/m68k/gen68302/include/bsp.h b/c/src/lib/libbsp/m68k/gen68302/include/bsp.h
index 04745e01d6..eed274fb9a 100644
--- a/c/src/lib/libbsp/m68k/gen68302/include/bsp.h
+++ b/c/src/lib/libbsp/m68k/gen68302/include/bsp.h
@@ -23,7 +23,9 @@ extern "C" {
#endif
#include <rtems.h>
+#include <console.h>
#include <iosupp.h>
+#include <clockdrv.h>
/*
* Define the time limits for RTEMS Test Suite test durations.
@@ -81,6 +83,24 @@ extern "C" {
#define EXTERN extern
#endif
+/*
+ * Device Driver Table Entries
+ */
+
+/*
+ * NOTE: Use the standard Console driver entry
+ */
+
+/*
+ * NOTE: Use the standard Clock driver entry
+ */
+
+/*
+ * How many libio files we want
+ */
+
+#define BSP_LIBIO_MAX_FDS 20
+
/* miscellaneous stuff assumed to exist */
extern rtems_configuration_table BSP_Configuration;
diff --git a/c/src/lib/libbsp/m68k/gen68302/start/start302.s b/c/src/lib/libbsp/m68k/gen68302/start/start302.s
index 2682066e84..d92ed1ce6b 100644
--- a/c/src/lib/libbsp/m68k/gen68302/start/start302.s
+++ b/c/src/lib/libbsp/m68k/gen68302/start/start302.s
@@ -227,7 +227,10 @@ loop: movel d0,a1@+ | to zero out uninitialized
movec a0,isp | set interrupt stack
#endif
- jsr SYM (bsp_start)
+ move.l #0,a7@- | environp
+ move.l #0,a7@- | argv
+ move.l #0,a7@- | argc
+ jsr SYM (main)
nop
Bad: bra Bad
diff --git a/c/src/lib/libbsp/m68k/gen68302/start302/start302.s b/c/src/lib/libbsp/m68k/gen68302/start302/start302.s
index 2682066e84..d92ed1ce6b 100644
--- a/c/src/lib/libbsp/m68k/gen68302/start302/start302.s
+++ b/c/src/lib/libbsp/m68k/gen68302/start302/start302.s
@@ -227,7 +227,10 @@ loop: movel d0,a1@+ | to zero out uninitialized
movec a0,isp | set interrupt stack
#endif
- jsr SYM (bsp_start)
+ move.l #0,a7@- | environp
+ move.l #0,a7@- | argv
+ move.l #0,a7@- | argc
+ jsr SYM (main)
nop
Bad: bra Bad
diff --git a/c/src/lib/libbsp/m68k/gen68302/startup/bspstart.c b/c/src/lib/libbsp/m68k/gen68302/startup/bspstart.c
index 976046cf9f..72e1656e04 100644
--- a/c/src/lib/libbsp/m68k/gen68302/startup/bspstart.c
+++ b/c/src/lib/libbsp/m68k/gen68302/startup/bspstart.c
@@ -20,10 +20,17 @@
* $Id$
*/
-#include <rtems.h>
#include <bsp.h>
+#include <rtems/libio.h>
+
#include <libcsupport.h>
-
+
+#include <string.h>
+#include <fcntl.h>
+
+#ifdef STACK_CHECKER_ON
+#include <stackchk.h>
+#endif
/*
* The original table from the application and our copy of it with
@@ -35,6 +42,8 @@ rtems_configuration_table BSP_Configuration;
rtems_cpu_table Cpu_table;
+char *rtems_progname;
+
/* Initialize whatever libc we are using
* called from postdriver hook
*/
@@ -58,6 +67,14 @@ void bsp_libc_init()
RTEMS_Malloc_Initialize((void *) heap_start, 64 * 1024, 0);
/*
+ * Init the RTEMS libio facility to provide UNIX-like system
+ * calls for use by newlib (ie: provide __open, __close, etc)
+ * Uses malloc() to get area for the iops, so must be after malloc init
+ */
+
+ rtems_libio_init();
+
+ /*
* Set up for the libc handling.
*/
@@ -75,13 +92,43 @@ void bsp_libc_init()
#endif
}
+/*
+ * After drivers are setup, register some "filenames"
+ * and open stdin, stdout, stderr files
+ *
+ * Newlib will automatically associate the files with these
+ * (it hardcodes the numbers)
+ */
+
+void
+bsp_postdriver_hook(void)
+{
+ int stdin_fd, stdout_fd, stderr_fd;
+
+ if ((stdin_fd = __open("/dev/console", O_RDONLY, 0)) == -1)
+ rtems_fatal_error_occurred('STD0');
+
+ if ((stdout_fd = __open("/dev/console", O_WRONLY, 0)) == -1)
+ rtems_fatal_error_occurred('STD1');
+
+ if ((stderr_fd = __open("/dev/console", O_WRONLY, 0)) == -1)
+ rtems_fatal_error_occurred('STD2');
+
+ if ((stdin_fd != 0) || (stdout_fd != 1) || (stderr_fd != 2))
+ rtems_fatal_error_occurred('STIO');
+}
-int bsp_start(
+int main(
int argc,
char **argv,
char **environp
)
{
+ if ((argc > 0) && argv && argv[0])
+ rtems_progname = argv[0];
+ else
+ rtems_progname = "RTEMS";
+
/*
* Allocate the memory for the RTEMS Work Space. This can come from
* a variety of places: hard coded address, malloc'ed from outside
@@ -90,7 +137,7 @@ int bsp_start(
* of work space from the last physical address on the CPU board.
*/
#if 0
-a Cpu_table.interrupt_vector_table = (mc68000_isr *) 0/*&M68Kvec*/;
+ Cpu_table.interrupt_vector_table = (mc68000_isr *) 0/*&M68Kvec*/;
#endif
@@ -123,6 +170,12 @@ a Cpu_table.interrupt_vector_table = (mc68000_isr *) 0/*&M68Kvec*/;
#endif
/*
+ * Tell libio how many fd's we want and allow it to tweak config
+ */
+
+ rtems_libio_config(&BSP_Configuration, BSP_LIBIO_MAX_FDS);
+
+ /*
* Need to "allocate" the memory for the RTEMS Workspace and
* tell the RTEMS configuration where it is. This memory is
* not malloc'ed. It is just "pulled from the air".
@@ -143,7 +196,7 @@ a Cpu_table.interrupt_vector_table = (mc68000_isr *) 0/*&M68Kvec*/;
Cpu_table.predriver_hook = bsp_libc_init; /* RTEMS resources available */
- Cpu_table.postdriver_hook = NULL;
+ Cpu_table.postdriver_hook = bsp_postdriver_hook;
Cpu_table.idle_task = NULL; /* do not override system IDLE task */