diff options
Diffstat (limited to 'c/src/lib/libbsp/no_cpu')
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/README | 69 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/clock/ckinit.c | 143 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/console/console.c | 158 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/include/bsp.h | 85 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/include/coverhd.h | 115 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/addrconv.c | 31 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/getcfg.c | 77 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/lock.c | 86 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/mpisr.c | 47 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/startup/bspclean.c | 26 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/startup/bspstart.c | 164 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/startup/linkcmds | 46 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/startup/main.c | 33 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/startup/setvec.c | 44 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/timer/timer.c | 105 | ||||
| -rw-r--r-- | c/src/lib/libbsp/no_cpu/no_bsp/timer/timerisr.c | 37 |
16 files changed, 1266 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/README b/c/src/lib/libbsp/no_cpu/no_bsp/README new file mode 100644 index 0000000000..8ed80e29f8 --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/README @@ -0,0 +1,69 @@ +# +# $Id$ +# +# This is a sample hardware description file for a BSP. This comment +# block does not have to appear in a real one. The intention of this +# file is to provide a central place to look when searching for +# information about a board when starting a new BSP. For example, +# you may want to find an existing timer driver for the chip you are +# using on your board. It is easier to grep for the chip name in +# all of the HARDWARE files than to peruse the source tree. Hopefully, +# making the HARDDWARE files accurate will also alleviate the common +# problem of not knowing anything about a board based on its BSP +# name. +# +# NOTE: If you have a class of peripheral chip on board which +# is not in this list please add it to this file so +# others will also use the same name. +# +# Timer resolution is the way it is configured in this BSP. +# On a counting timer, this is the length of time which +# corresponds to 1 count. +# + +BSP NAME: fastsbc1 +BOARD: Fasssst Computers, Fast SBC-1 +BUS: SchoolBus +CPU FAMILY: i386 +CPU: Intel Hexium +COPROCESSORS: Witch Hex87 +MODE: 32 bit mode + +DEBUG MONITOR: HexBug + +PERIPHERALS +=========== +TIMERS: Intel i8254 + RESOLUTION: .0001 microseconds +SERIAL PORTS: Zilog Z8530 (with 2 ports) +REAL-TIME CLOCK: RTC-4 +DMA: Intel i8259 +VIDEO: none +SCSI: none +NETWORKING: none + +DRIVER INFORMATION +================== +CLOCK DRIVER: RTC-4 +IOSUPP DRIVER: Zilog Z8530 port A +SHMSUPP: polled and interrupts +TIMER DRIVER: Intel i8254 +TTY DRIVER: stub only + +STDIO +===== +PORT: Console port 0 +ELECTRICAL: RS-232 +BAUD: 9600 +BITS PER CHARACTER: 8 +PARITY: None +STOP BITS: 1 + +NOTES +===== + +(1) 900 Mhz and 950 Mhz versions. + +(2) 1 Gb or 2 Gb RAM. + +(3) PC compatible if HexBug not enabled. diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/clock/ckinit.c b/c/src/lib/libbsp/no_cpu/no_bsp/clock/ckinit.c new file mode 100644 index 0000000000..426b55137b --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/clock/ckinit.c @@ -0,0 +1,143 @@ +/* ckinit.c + * + * This file provides a template for the clock device driver initialization. + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#include <stdlib.h> + +#include <rtems.h> +#include <bsp.h> +#include <clockdrv.h> + +/* + * The interrupt vector number associated with the clock tick device + * driver. + */ + +#define CLOCK_VECTOR 4 + +/* + * Clock_driver_ticks is a monotonically increasing counter of the + * number of clock ticks since the driver was initialized. + */ +volatile rtems_unsigned32 Clock_driver_ticks; + +/* + * Clock_isrs is the number of clock ISRs until the next invocation of + * the RTEMS clock tick routine. The clock tick device driver + * gets an interrupt once a millisecond and counts down until the + * length of time between the user configured microseconds per tick + * has passed. + */ + +rtems_unsigned32 Clock_isrs; /* ISRs until next tick */ + +/* + * The previous ISR on this clock tick interrupt vector. + */ + +rtems_isr_entry Old_ticker; + +/* + * Clock_initialize + * + * Device driver entry point for clock tick driver initialization. + */ + +rtems_device_driver Clock_initialize( + rtems_device_major_number major, + rtems_device_minor_number minor, + void *pargp, + rtems_id tid, + rtems_unsigned32 *rval +) +{ + Install_clock( Clock_isr ); +} + +/* + * Reinstall_clock + * + * Install a clock tick handler without reprogramming the chip. This + * is used by the polling shared memory device driver. + */ + +void ReInstall_clock( + rtems_isr_entry clock_isr +) +{ + rtems_unsigned32 isrlevel = 0; + + /* + * Disable interrupts and install the clock ISR vector using the + * BSP dependent set_vector routine. In the below example, the clock + * ISR is on vector 4 and is an RTEMS interrupt. + */ + + rtems_interrupt_disable( isrlevel ); + (void) set_vector( clock_isr, CLOCK_VECTOR, 1 ); + rtems_interrupt_enable( isrlevel ); +} + +/* + * Install_clock + * + * Install a clock tick handler and reprograms the chip. This + * is used to initially establish the clock tick. + */ + +void Install_clock( + rtems_isr_entry clock_isr +) +{ + /* + * Initialize the clock tick device driver variables + */ + + Clock_driver_ticks = 0; + Clock_isrs = BSP_Configuration.microseconds_per_tick / 1000; + + /* + * If ticks_per_timeslice is configured as non-zero, then the user + * wants a clock tick. + */ + + if ( BSP_Configuration.ticks_per_timeslice ) { + Old_ticker = ( rtems_isr_entry ) set_vector( clock_isr, CLOCK_VECTOR, 1 ); + /* + * Hardware specific initialize goes here + */ + + /* XXX */ + } + + /* + * Schedule the clock cleanup routine to execute if the application exits. + */ + + atexit( Clock_exit ); +} + +/* + * Clean up before the application exits + */ + +void Clock_exit( void ) +{ + if ( BSP_Configuration.ticks_per_timeslice ) { + + /* XXX: turn off the timer interrupts */ + + /* XXX: If necessary, restore the old vector */ + } +} diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/console/console.c b/c/src/lib/libbsp/no_cpu/no_bsp/console/console.c new file mode 100644 index 0000000000..c115e256a3 --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/console/console.c @@ -0,0 +1,158 @@ +/* + * This file contains the template for a console IO package. + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#define NO_BSP_INIT + +#include <rtems.h> +#include "console.h" +#include "bsp.h" + +/* console_initialize + * + * This routine initializes the console IO driver. + * + * Input parameters: NONE + * + * Output parameters: NONE + * + * Return values: + */ + +rtems_device_driver console_initialize( + rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg, + rtems_id self, + rtems_unsigned32 *status +) +{ + *status = RTEMS_SUCCESSFUL; +} + + +/* is_character_ready + * + * This routine returns TRUE if a character is available. + * + * Input parameters: NONE + * + * Output parameters: NONE + * + * Return values: + */ + +rtems_boolean is_character_ready( + char *ch +) +{ + *ch = '\0'; /* return NULL for no particular reason */ + return(TRUE); +} + +/* inbyte + * + * This routine reads a character from the SOURCE. + * + * Input parameters: NONE + * + * Output parameters: NONE + * + * Return values: + * character read from SOURCE + */ + +char inbyte( void ) +{ + /* + * If polling, wait until a character is available. + */ + + return '\0'; +} + +/* outbyte + * + * This routine transmits a character out the SOURCE. It may support + * XON/XOFF flow control. + * + * Input parameters: + * ch - character to be transmitted + * + * Output parameters: NONE + */ + +void outbyte( + char ch +) +{ + /* + * If polling, wait for the transmitter to be ready. + * Check for flow control requests and process. + * Then output the character. + */ + + /* + * Carriage Return/New line translation. + */ + + if ( ch == '\n' ) + outbyte( '\r' ); +} + +/* + * __read -- read bytes from the serial port. Ignore fd, since + * we only have stdin. + */ + +int __read( + int fd, + char *buf, + int nbytes +) +{ + int i = 0; + + for (i = 0; i < nbytes; i++) { + *(buf + i) = inbyte(); + if ((*(buf + i) == '\n') || (*(buf + i) == '\r')) { + (*(buf + i++)) = '\n'; + (*(buf + i)) = 0; + break; + } + } + return (i); +} + +/* + * __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. + */ + +int __write( + int fd, + char *buf, + int nbytes +) +{ + int i; + + for (i = 0; i < nbytes; i++) { + if (*(buf + i) == '\n') { + outbyte ('\r'); + } + outbyte (*(buf + i)); + } + return (nbytes); +} diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/include/bsp.h b/c/src/lib/libbsp/no_cpu/no_bsp/include/bsp.h new file mode 100644 index 0000000000..0f1c94caf4 --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/include/bsp.h @@ -0,0 +1,85 @@ +/* bsp.h + * + * This include file contains all board IO definitions. + * + * XXX : put yours in here + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#ifndef __NO_BSP_h +#define __NO_BSP_h + +#ifdef __cplusplus +extern "C" { +#endif + +#include <rtems.h> + +/* + * Define the time limits for RTEMS Test Suite test durations. + * Long test and short test duration limits are provided. These + * values are in seconds and need to be converted to ticks for the + * application. + * + */ + +#define MAX_LONG_TEST_DURATION 300 /* 5 minutes = 300 seconds */ +#define MAX_SHORT_TEST_DURATION 3 /* 3 seconds */ + +/* + * Stuff for Time Test 27 + */ + +#define MUST_WAIT_FOR_INTERRUPT 0 + +#define Install_tm27_vector( handler ) set_vector( (handler), 0, 1 ) + +#define Cause_tm27_intr() + +#define Clear_tm27_intr() + +#define Lower_tm27_intr() + +/* + * Simple spin delay in microsecond units for device drivers. + * This is very dependent on the clock speed of the target. + */ + +#define delay( microseconds ) \ + { \ + } + +/* Constants */ + +#define RAM_START 0 +#define RAM_END 0x100000 + +/* miscellaneous stuff assumed to exist */ + +extern rtems_configuration_table BSP_Configuration; + +/* functions */ + +void bsp_cleanup( void ); + +no_cpu_isr_entry set_vector( /* returns old vector */ + rtems_isr_entry handler, /* isr routine */ + rtems_vector_number vector, /* vector number */ + int type /* RTEMS or RAW intr */ +); + +#ifdef __cplusplus +} +#endif + +#endif +/* end of include file */ diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/include/coverhd.h b/c/src/lib/libbsp/no_cpu/no_bsp/include/coverhd.h new file mode 100644 index 0000000000..88435c5348 --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/include/coverhd.h @@ -0,0 +1,115 @@ +/* coverhd.h + * + * This include file has defines to represent the overhead associated + * with calling a particular directive from C. These are used in the + * Timing Test Suite to ignore the overhead required to pass arguments + * to directives. On some CPUs and/or target boards, this overhead + * is significant and makes it difficult to distinguish internal + * RTEMS execution time from that used to call the directive. + * This file should be updated after running the C overhead timing + * test. Once this update has been performed, the RTEMS Time Test + * Suite should be rebuilt to account for these overhead times in the + * timing results. + * + * NOTE: If these are all zero, then the times reported include all + * all calling overhead including passing of arguments. + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#ifndef __COVERHD_h +#define __COVERHD_h + +#ifdef __cplusplus +extern "C" { +#endif + +#define CALLING_OVERHEAD_INITIALIZE_EXECUTIVE 0 +#define CALLING_OVERHEAD_SHUTDOWN_EXECUTIVE 0 +#define CALLING_OVERHEAD_TASK_CREATE 0 +#define CALLING_OVERHEAD_TASK_IDENT 0 +#define CALLING_OVERHEAD_TASK_START 0 +#define CALLING_OVERHEAD_TASK_RESTART 0 +#define CALLING_OVERHEAD_TASK_DELETE 0 +#define CALLING_OVERHEAD_TASK_SUSPEND 0 +#define CALLING_OVERHEAD_TASK_RESUME 0 +#define CALLING_OVERHEAD_TASK_SET_PRIORITY 0 +#define CALLING_OVERHEAD_TASK_MODE 0 +#define CALLING_OVERHEAD_TASK_GET_NOTE 0 +#define CALLING_OVERHEAD_TASK_SET_NOTE 0 +#define CALLING_OVERHEAD_TASK_WAKE_WHEN 0 +#define CALLING_OVERHEAD_TASK_WAKE_AFTER 0 +#define CALLING_OVERHEAD_INTERRUPT_CATCH 0 +#define CALLING_OVERHEAD_CLOCK_GET 0 +#define CALLING_OVERHEAD_CLOCK_SET 0 +#define CALLING_OVERHEAD_CLOCK_TICK 0 + +#define CALLING_OVERHEAD_TIMER_CREATE 0 +#define CALLING_OVERHEAD_TIMER_IDENT 0 +#define CALLING_OVERHEAD_TIMER_DELETE 0 +#define CALLING_OVERHEAD_TIMER_FIRE_AFTER 0 +#define CALLING_OVERHEAD_TIMER_FIRE_WHEN 0 +#define CALLING_OVERHEAD_TIMER_RESET 0 +#define CALLING_OVERHEAD_TIMER_CANCEL 0 +#define CALLING_OVERHEAD_SEMAPHORE_CREATE 0 +#define CALLING_OVERHEAD_SEMAPHORE_IDENT 0 +#define CALLING_OVERHEAD_SEMAPHORE_DELETE 0 +#define CALLING_OVERHEAD_SEMAPHORE_OBTAIN 0 +#define CALLING_OVERHEAD_SEMAPHORE_RELEASE 0 +#define CALLING_OVERHEAD_MESSAGE_QUEUE_CREATE 0 +#define CALLING_OVERHEAD_MESSAGE_QUEUE_IDENT 0 +#define CALLING_OVERHEAD_MESSAGE_QUEUE_DELETE 0 +#define CALLING_OVERHEAD_MESSAGE_QUEUE_SEND 0 +#define CALLING_OVERHEAD_MESSAGE_QUEUE_URGENT 0 +#define CALLING_OVERHEAD_MESSAGE_QUEUE_BROADCAST 0 +#define CALLING_OVERHEAD_MESSAGE_QUEUE_RECEIVE 0 +#define CALLING_OVERHEAD_MESSAGE_QUEUE_FLUSH 0 + +#define CALLING_OVERHEAD_EVENT_SEND 0 +#define CALLING_OVERHEAD_EVENT_RECEIVE 0 +#define CALLING_OVERHEAD_SIGNAL_CATCH 0 +#define CALLING_OVERHEAD_SIGNAL_SEND 0 +#define CALLING_OVERHEAD_PARTITION_CREATE 0 +#define CALLING_OVERHEAD_PARTITION_IDENT 0 +#define CALLING_OVERHEAD_PARTITION_DELETE 0 +#define CALLING_OVERHEAD_PARTITION_GET_BUFFER 0 +#define CALLING_OVERHEAD_PARTITION_RETURN_BUFFER 0 +#define CALLING_OVERHEAD_REGION_CREATE 0 +#define CALLING_OVERHEAD_REGION_IDENT 0 +#define CALLING_OVERHEAD_REGION_DELETE 0 +#define CALLING_OVERHEAD_REGION_GET_SEGMENT 0 +#define CALLING_OVERHEAD_REGION_RETURN_SEGMENT 0 +#define CALLING_OVERHEAD_PORT_CREATE 0 +#define CALLING_OVERHEAD_PORT_IDENT 0 +#define CALLING_OVERHEAD_PORT_DELETE 0 +#define CALLING_OVERHEAD_PORT_EXTERNAL_TO_INTERNAL 0 +#define CALLING_OVERHEAD_PORT_INTERNAL_TO_EXTERNAL 0 + +#define CALLING_OVERHEAD_IO_INITIALIZE 0 +#define CALLING_OVERHEAD_IO_OPEN 0 +#define CALLING_OVERHEAD_IO_CLOSE 0 +#define CALLING_OVERHEAD_IO_READ 0 +#define CALLING_OVERHEAD_IO_WRITE 0 +#define CALLING_OVERHEAD_IO_CONTROL 0 +#define CALLING_OVERHEAD_FATAL_ERROR_OCCURRED 0 +#define CALLING_OVERHEAD_RATE_MONOTONIC_CREATE 0 +#define CALLING_OVERHEAD_RATE_MONOTONIC_IDENT 0 +#define CALLING_OVERHEAD_RATE_MONOTONIC_DELETE 0 +#define CALLING_OVERHEAD_RATE_MONOTONIC_CANCEL 0 +#define CALLING_OVERHEAD_RATE_MONOTONIC_PERIOD 0 +#define CALLING_OVERHEAD_MULTIPROCESSING_ANNOUNCE 0 + +#ifdef __cplusplus +} +#endif + +#endif +/* end of include file */ diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/addrconv.c b/c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/addrconv.c new file mode 100644 index 0000000000..0e188fc941 --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/addrconv.c @@ -0,0 +1,31 @@ +/* Shm_Convert_address + * + * No address range conversion is required. + * + * Input parameters: + * address - address to convert + * + * Output parameters: + * returns - converted address + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#include <rtems.h> +#include <bsp.h> +#include <shm.h> + +void *Shm_Convert_address( + void *address +) +{ + return ( address ); +} diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/getcfg.c b/c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/getcfg.c new file mode 100644 index 0000000000..ca8409a3f0 --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/getcfg.c @@ -0,0 +1,77 @@ +/* void Shm_Get_configuration( localnode, &shmcfg ) + * + * This routine initializes, if necessary, and returns a pointer + * to the Shared Memory Configuration Table for the XXX target. + * + * INPUT PARAMETERS: + * localnode - local node number + * shmcfg - address of pointer to SHM Config Table + * + * OUTPUT PARAMETERS: + * *shmcfg - pointer to SHM Config Table + * +XXX: FIX THE COMMENTS BELOW WHEN THE CPU IS KNOWN + * NOTES: The XYZ does not have an interprocessor interrupt. + * + * The following table illustrates the configuration limitations: + * + * BUS MAX + * MODE ENDIAN NODES + * ========= ====== ======= + * POLLED BIG 2+ + * INTERRUPT **** NOT SUPPORTED **** + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#include <rtems.h> +#include <bsp.h> +#include <shm.h> + +/* + * configured if currently polling of interrupt driven + */ + +#define INTERRUPT 0 /* XXX: */ +#define POLLING 1 /* XXX: fix me -- is polling ONLY!!! */ + + +shm_config_table BSP_shm_cfgtbl; + +void Shm_Get_configuration( + rtems_unsigned32 localnode, + shm_config_table **shmcfg +) +{ + BSP_shm_cfgtbl.base = 0x0; + BSP_shm_cfgtbl.length = 1 * MEGABYTE; + BSP_shm_cfgtbl.format = SHM_BIG; + + /* + * Override cause_intr or shm_isr if your target has + * special requirements. + */ + + BSP_shm_cfgtbl.cause_intr = Shm_Cause_interrupt; + +#ifdef NEUTRAL_BIG + BSP_shm_cfgtbl.convert = NULL_CONVERT; +#else + BSP_shm_cfgtbl.convert = CPU_swap_u32; +#endif + + BSP_shm_cfgtbl.poll_intr = POLLED_MODE; + BSP_shm_cfgtbl.Intr.address = NO_INTERRUPT; + BSP_shm_cfgtbl.Intr.value = NO_INTERRUPT; + BSP_shm_cfgtbl.Intr.length = NO_INTERRUPT; + + *shmcfg = &BSP_shm_cfgtbl; +} diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/lock.c b/c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/lock.c new file mode 100644 index 0000000000..acdc8b7b48 --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/lock.c @@ -0,0 +1,86 @@ +/* Shared Memory Lock Routines + * + * This shared memory locked queue support routine need to be + * able to lock the specified locked queue. Interrupts are + * disabled while the queue is locked to prevent preemption + * and deadlock when two tasks poll for the same lock. + * previous level. + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#include <rtems.h> +#include <bsp.h> +#include <shm.h> + +/* + * Shm_Initialize_lock + * + * Initialize the lock for the specified locked queue. + */ + +void Shm_Initialize_lock( + Shm_Locked_queue_Control *lq_cb +) +{ + lq_cb->lock = LQ_UNLOCKED; +} + +/* void _Shm_Lock( &lq_cb ) + * + * This shared memory locked queue support routine locks the + * specified locked queue. It disables interrupts to prevent + * a deadlock condition. + */ + +void Shm_Lock( + Shm_Locked_queue_Control *lq_cb +) +{ + rtems_unsigned32 isr_level; + rtems_unsigned32 *lockptr = &lq_cb->lock; + rtems_unsigned32 lock_value; + + lock_value = 0x80000000; + rtems_interrupt_disable( isr_level ); + + Shm_isrstat = isr_level; + while ( lock_value ) { + asm volatile( "" + : "=r" (lockptr), "=r" (lock_value) + : "0" (lockptr), "1" (lock_value) + ); + /* + * If not available, then may want to delay to reduce load on lock. + */ + + if ( lock_value ) + delay( 10 ); /* approximately 10 microseconds */ + } +} + +/* + * Shm_Unlock + * + * Unlock the lock for the specified locked queue. + */ + +void Shm_Unlock( + Shm_Locked_queue_Control *lq_cb +) +{ + rtems_unsigned32 isr_level; + + lq_cb->lock = SHM_UNLOCK_VALUE; + isr_level = Shm_isrstat; + rtems_interrupt_enable( isr_level ); +} + diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/mpisr.c b/c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/mpisr.c new file mode 100644 index 0000000000..592c0cfcc5 --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/shmsupp/mpisr.c @@ -0,0 +1,47 @@ +/* Shm_isr_nobsp() + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#include <rtems.h> +#include <bsp.h> +#include <shm.h> + +rtems_isr Shm_isr_nobsp( void ) +{ + /* + * If this routine has to do anything other than the mpisr.c + * found in the generic driver, then copy the contents of the generic + * mpisr.c and augment it to satisfy this particular board. Typically, + * you need to have a board specific mpisr.c when the interrupt + * must be cleared. + * + * If the generic mpisr.c satisifies your requirements, then + * remove this routine from your target's shmsupp/mpisb.c file. + * Then simply install the generic Shm_isr in the Shm_setvec + * routine below. + */ +} + +/* Shm_setvec + * + * This driver routine sets the SHM interrupt vector to point to the + * driver's SHM interrupt service routine. + * + * Input parameters: NONE + * + * Output parameters: NONE + */ + +void Shm_setvec( void ) +{ + /* XXX: FIX ME!!! */ +} diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/startup/bspclean.c b/c/src/lib/libbsp/no_cpu/no_bsp/startup/bspclean.c new file mode 100644 index 0000000000..ca498e7806 --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/startup/bspclean.c @@ -0,0 +1,26 @@ +/* bsp_cleanup() + * + * This routine normally is part of start.s and usually returns + * control to a monitor. + * + * INPUT: NONE + * + * OUTPUT: NONE + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#include <rtems.h> +#include <bsp.h> + +void bsp_cleanup( void ) +{ +} diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/startup/bspstart.c b/c/src/lib/libbsp/no_cpu/no_bsp/startup/bspstart.c new file mode 100644 index 0000000000..4d3d3a7175 --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/startup/bspstart.c @@ -0,0 +1,164 @@ +/* bsp_start() + * + * This routine starts the application. It includes application, + * board, and monitor specific initialization and configuration. + * The generic CPU dependent initialization has been performed + * before this routine is invoked. + * + * INPUT: NONE + * + * OUTPUT: NONE + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#include <rtems.h> +#include <bsp.h> +#include <shm.h> +#include <libcsupport.h> + +/* + * The original table from the application and our copy of it with + * some changes. + */ + +extern rtems_configuration_table Configuration; + +rtems_configuration_table BSP_Configuration; + +rtems_cpu_table Cpu_table; + +/* Initialize whatever libc we are using + * called from postdriver hook + */ + +void bsp_libc_init() +{ + extern int end; + rtems_unsigned32 heap_start; + + heap_start = (rtems_unsigned32) &end; + if (heap_start & (CPU_ALIGNMENT-1)) + heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1); + + /* + * The last parameter to RTEMS_Malloc_Initialize is the "chunk" + * size which a multiple of will be requested on each sbrk() + * call by malloc(). A value of 0 indicates that sbrk() should + * not be called to extend the heap. + */ + + RTEMS_Malloc_Initialize((void *) heap_start, 64 * 1024, 0); + + /* + * Set up for the libc handling. + */ + + if (BSP_Configuration.ticks_per_timeslice > 0) + libc_init(1); /* reentrant if possible */ + else + libc_init(0); /* non-reentrant */ + + /* + * Initialize the stack bounds checker + */ + +#ifdef STACK_CHECKER_ON + Stack_check_Initialize(); +#endif +} + +int bsp_start( + int argc, + char **argv, + char **environp +) +{ + /* + * Allocate the memory for the RTEMS Work Space. This can come from + * a variety of places: hard coded address, malloc'ed from outside + * RTEMS world (e.g. simulator or primitive memory manager), or (as + * typically done by stock BSPs) by subtracting the required amount + * of work space from the last physical address on the CPU board. + */ + + /* + * Copy the Configuration Table .. so we can change it + */ + + BSP_Configuration = Configuration; + + /* + * Add 1 region for the RTEMS Malloc + */ + + BSP_Configuration.maximum_regions++; + + /* + * Add 1 extension for newlib libc + */ + +#ifdef RTEMS_NEWLIB + BSP_Configuration.maximum_extensions++; +#endif + + /* + * Add 1 extension for newlib libc + */ + +#ifdef RTEMS_NEWLIB + BSP_Configuration.maximum_extensions++; +#endif + + /* + * 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". + */ + + BSP_Configuration.work_space_start = (void *) 0; + + /* + * initialize the CPU table for this BSP + */ + + /* + * we do not use the pretasking_hook + */ + + Cpu_table.pretasking_hook = NULL; + + Cpu_table.predriver_hook = bsp_libc_init; /* RTEMS resources available */ + + Cpu_table.postdriver_hook = NULL; + + Cpu_table.idle_task = NULL; /* do not override system IDLE task */ + + Cpu_table.do_zero_of_workspace = TRUE; + + Cpu_table.interrupt_stack_size = 4096; + + Cpu_table.extra_system_initialization_stack = 0; + + /* + * Don't forget the other CPU Table entries. + */ + + /* + * Start RTEMS + */ + + rtems_initialize_executive( &BSP_Configuration, &Cpu_table ); + + bsp_cleanup(); + + return 0; +} diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/startup/linkcmds b/c/src/lib/libbsp/no_cpu/no_bsp/startup/linkcmds new file mode 100644 index 0000000000..144b9e68a0 --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/startup/linkcmds @@ -0,0 +1,46 @@ +/* + * This file contains directives for the GNU linker which are specific + * to the FORCE CPU386 board. + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +MEMORY + { + ram : org = 0x0, l = 1M + } + +SECTIONS +{ + .text 0x0 : + { + text_start = . ; + _text_start = . ; + *(.text) + _etext = ALIGN( 0x10 ) ; + } + .data ADDR( .text ) + SIZEOF( .text ): + { + data_start = . ; + _data_start = . ; + *(.data) + _edata = ALIGN( 0x10 ) ; + } + .bss ADDR( .data ) + SIZEOF( .data ): + { + bss_start = . ; + _bss_start = . ; + *(.bss) + *(COMMON) + end = . ; + __end = . ; + } +} diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/startup/main.c b/c/src/lib/libbsp/no_cpu/no_bsp/startup/main.c new file mode 100644 index 0000000000..622edb1ad7 --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/startup/main.c @@ -0,0 +1,33 @@ +/* main() + * + * This is the entry point for the application. It calls + * the bsp_start routine to the actual dirty work. + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#include <rtems.h> +#include <bsp.h> + +int main( + int argc, + char **argv +) +{ + bsp_start(); + + /* + * May be able to return to the "crt/start.s" code but also + * may not be able to. Do something here which is board dependent. + */ + + rtems_fatal_error_occurred( 0 ); +} diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/startup/setvec.c b/c/src/lib/libbsp/no_cpu/no_bsp/startup/setvec.c new file mode 100644 index 0000000000..0f556a4d5e --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/startup/setvec.c @@ -0,0 +1,44 @@ +/* set_vector + * + * This routine installs an interrupt vector on the target Board/CPU. + * This routine is allowed to be as board dependent as necessary. + * + * INPUT: + * handler - interrupt handler entry point + * vector - vector number + * type - 0 indicates raw hardware connect + * 1 indicates RTEMS interrupt connect + * + * RETURNS: + * address of previous interrupt handler + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#include <rtems.h> +#include <bsp.h> + +no_cpu_isr_entry set_vector( /* returns old vector */ + rtems_isr_entry handler, /* isr routine */ + rtems_vector_number vector, /* vector number */ + int type /* RTEMS or RAW intr */ +) +{ + no_cpu_isr_entry previous_isr; + + if ( type ) + rtems_interrupt_catch( handler, vector, (rtems_isr_entry *) &previous_isr ); + else { + /* XXX: install non-RTEMS ISR as "raw" interupt */ + } + return previous_isr; +} + diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/timer/timer.c b/c/src/lib/libbsp/no_cpu/no_bsp/timer/timer.c new file mode 100644 index 0000000000..a3b8775444 --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/timer/timer.c @@ -0,0 +1,105 @@ +/* timer.c + * + * This file manages the benchmark timer used by the RTEMS Timing Test + * Suite. Each measured time period is demarcated by calls to + * Timer_initialize() and Read_timer(). Read_timer() usually returns + * the number of microseconds since Timer_initialize() exitted. + * + * NOTE: It is important that the timer start/stop overhead be + * determined when porting or modifying this code. + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#include <rtems.h> +#include <bsp.h> + +rtems_unsigned32 Timer_interrupts; +rtems_boolean Timer_driver_Find_average_overhead; + +void Timer_initialize( void ) +{ + + /* + * Timer has never overflowed. This may not be necessary on some + * implemenations of timer but .... + */ + + Timer_interrupts = 0; + + /* + * Somehow start the timer + */ +} + +/* + * The following controls the behavior of Read_timer(). + * + * AVG_OVEREHAD is the overhead for starting and stopping the timer. It + * is usually deducted from the number returned. + * + * LEAST_VALID is the lowest number this routine should trust. Numbers + * below this are "noise" and zero is returned. + */ + +#define AVG_OVERHEAD 0 /* It typically takes X.X microseconds */ + /* (Y countdowns) to start/stop the timer. */ + /* This value is in microseconds. */ +#define LEAST_VALID 1 /* Don't trust a clicks value lower than this */ + +int Read_timer( void ) +{ + rtems_unsigned32 clicks; + rtems_unsigned32 total; + + /* + * Read the timer and see how many clicks it has been since we started. + */ + + clicks = 0; /* XXX: read some HW here */ + + /* + * Total is calculated by taking into account the number of timer overflow + * interrupts since the timer was initialized and clicks since the last + * interrupts. + */ + + total = clicks * 0; + + if ( Timer_driver_Find_average_overhead == 1 ) + return total; /* in XXX microsecond units */ + else { + if ( total < LEAST_VALID ) + return 0; /* below timer resolution */ + /* + * Somehow convert total into microseconds + */ + return (total - AVG_OVERHEAD); + } +} + +/* + * Empty function call used in loops to measure basic cost of looping + * in Timing Test Suite. + */ + +rtems_status_code Empty_function( void ) +{ + return RTEMS_SUCCESSFUL; +} + +void Set_find_average_overhead( + rtems_boolean find_flag +) +{ + Timer_driver_Find_average_overhead = find_flag; +} + diff --git a/c/src/lib/libbsp/no_cpu/no_bsp/timer/timerisr.c b/c/src/lib/libbsp/no_cpu/no_bsp/timer/timerisr.c new file mode 100644 index 0000000000..f52774b75e --- /dev/null +++ b/c/src/lib/libbsp/no_cpu/no_bsp/timer/timerisr.c @@ -0,0 +1,37 @@ +/* timerisr.s + * + * If required this ISR is used to bump a count of interval "overflow" + * interrupts which have occurred since the timer was started. The + * number of overflows is taken into account in the Read_timer() + * routine if necessary. + * + * To reduce overhead this is best to be the "rawest" hardware interupt + * handler you can write. This should be the only interrupt which can + * occur during the measured time period. + * + * NOTE: This file is USUALLY in assembly and is LEAN AND MEAN. + * Any code in this isr is pure overhead which can perturb + * the accuracy of the Timing Test Suite. + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#include <rtems.h> + +extern rtems_unsigned32 _Timer_interrupts; + +void timerisr( void ) +{ + /* + * _Timer_interrupts += TIMER_BETWEEN_OVERFLOWS (usually in microseconds) + * return from interrupt + */ +} |