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vme7700_block.c
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vme7700_block.c
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#include <stdio.h>
#include <assert.h>
#include <vme/vme.h>
#include <vme/vme_api.h>
#include <stdio.h>
#define ADDRESS_MODIFIER VME_A32SD
int
main(int argc, char **argv)
{
char *rw = 0;
int addr = 0;
int NBYTES=0;
int iarg = 0;
int slot=0;
if (++iarg>=argc) goto usage;
rw = argv[iarg];
if (++iarg>=argc) goto usage;
sscanf(argv[iarg], "%d", &slot);
if (++iarg>=argc) goto usage;
sscanf(argv[iarg], "%x", &addr);
addr=slot*(0x8000000) + addr;
if (!strcmp(rw, "read")) {
if (++iarg>=argc) goto usage;
NBYTES=atoi(argv[iarg]);
if (++iarg!=argc) goto usage;
vme_bus_handle_t bus_handle;
vme_master_handle_t window_handle;
uint32_t *ptr;
uint32_t *ctr;
int i=0;
for (i=0;i<NBYTES;i++){
if (vme_init(&bus_handle)) {
perror("Error initializing the VMEbus");
return -1;
}
if (vme_master_window_create(bus_handle, &window_handle,
addr, ADDRESS_MODIFIER, 1,
VME_CTL_PWEN, NULL)) {
perror("Error creating the window");
vme_term(bus_handle);
return -1;
}
ptr = vme_master_window_map(bus_handle, window_handle, 0);
if (!ptr) {
perror("Error mapping the window");
vme_master_window_release(bus_handle, window_handle);
vme_term(bus_handle);
return -1;
}
printf("%08x\n", *(ptr));
if (vme_master_window_unmap(bus_handle, window_handle)) {
perror("Error unmapping the window");
vme_master_window_release(bus_handle, window_handle);
vme_term(bus_handle);
return -1;
}
if (vme_master_window_release(bus_handle, window_handle)) {
perror("Error releasing the window");
vme_term(bus_handle);
return -1;
}
if (vme_term(bus_handle)) {
perror("Error terminating");
return -1;
}
addr=addr+4;
}
}
else if (!strcmp(rw, "write")) {
int value=0;
if (++iarg>=argc) goto usage;
sscanf(argv[iarg], "%x", &value);
if (++iarg!=argc) goto usage;
vme_bus_handle_t bus_handle;
vme_master_handle_t window_handle;
uint32_t *ptr;
if (vme_init(&bus_handle)) {
perror("Error initializing the VMEbus");
return -1;
}
if (vme_master_window_create(bus_handle, &window_handle,
addr, ADDRESS_MODIFIER, NBYTES,
VME_CTL_PWEN, NULL)) {
perror("Error creating the window");
vme_term(bus_handle);
return -1;
}
ptr = vme_master_window_map(bus_handle, window_handle, 0);
if (!ptr) {
perror("Error mapping the window");
vme_master_window_release(bus_handle, window_handle);
vme_term(bus_handle);
return -1;
}
*ptr=value;
if (vme_master_window_unmap(bus_handle, window_handle)) {
perror("Error unmapping the window");
vme_master_window_release(bus_handle, window_handle);
vme_term(bus_handle);
return -1;
}
if (vme_master_window_release(bus_handle, window_handle)) {
perror("Error releasing the window");
vme_term(bus_handle);
return -1;
}
if (vme_term(bus_handle)) {
perror("Error terminating");
return -1;
}
}
else {
goto usage;
}
return 0;
usage:
fprintf(stderr, "Usage: %s read <slot number> <addr> <datasize(words)> \n", argv[0]);
fprintf(stderr, " %s write <slot number> <addr> <value>\n", argv[0]);
fprintf(stderr, "where datasize is decimal, addr and value are hex\n");
return -1;
}