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#include <sys/time.h>
#include <arpa/inet.h>
#include <assert.h>
#include "pci.h"
#include "tools.h"
#include "model.h"
#include "error.h"
int pcilib_property_registers_read(pcilib_t *ctx, pcilib_register_bank_context_t *bank_ctx, pcilib_register_addr_t addr, pcilib_register_value_t *regval) {
int err;
const pcilib_register_bank_description_t *b = bank_ctx->bank;
int access = b->access / 8;
pcilib_view_t view = addr / access;
pcilib_value_t val = {0};
if (addr % access) {
pcilib_error("Can't perform unaligned access to property register (the address is 0x%lx and alligment requirement is %u)", addr, access);
return PCILIB_ERROR_INVALID_ARGUMENT;
}
if ((view == PCILIB_VIEW_INVALID)||(view >= ctx->num_views))
return PCILIB_ERROR_INVALID_ARGUMENT;
if ((ctx->views[view]->flags&PCILIB_VIEW_FLAG_REGISTER) == 0) {
pcilib_error("Accessing invalid register %u (associated view %u does not provide register functionality)", addr, view);
return PCILIB_ERROR_INVALID_REQUEST;
}
if ((ctx->views[view]->mode&PCILIB_ACCESS_R) == 0) {
pcilib_error("Read access is not allowed to register %u (view %u)", addr, view);
return PCILIB_ERROR_NOTPERMITED;
}
err = pcilib_get_property(ctx, ctx->views[view]->name, &val);
if (err) return err;
*regval = pcilib_get_value_as_register_value(ctx, &val, &err);
return err;
}
int pcilib_property_registers_write(pcilib_t *ctx, pcilib_register_bank_context_t *bank_ctx, pcilib_register_addr_t addr, pcilib_register_value_t regval) {
int err;
const pcilib_register_bank_description_t *b = bank_ctx->bank;
int access = b->access / 8;
pcilib_view_t view = addr / access;
pcilib_value_t val = {0};
if (addr % access) {
pcilib_error("Can't perform unaligned access to property register (the address is 0x%lx and alligment requirement is %u)", addr, access);
return PCILIB_ERROR_INVALID_ARGUMENT;
}
if ((view == PCILIB_VIEW_INVALID)||(view >= ctx->num_views))
return PCILIB_ERROR_INVALID_ARGUMENT;
if ((ctx->views[view]->flags&PCILIB_VIEW_FLAG_REGISTER) == 0) {
pcilib_error("Accessing invalid register %u (associated view %u does not provide register functionality)", addr, view);
return PCILIB_ERROR_INVALID_REQUEST;
}
if ((ctx->views[view]->mode&PCILIB_ACCESS_W) == 0) {
pcilib_error("Write access is not allowed to register %u (view %u)", addr, view);
return PCILIB_ERROR_NOTPERMITED;
}
err = pcilib_set_value_from_register_value(ctx, &val, regval);
if (err) return err;
return pcilib_set_property(ctx, ctx->views[view]->name, &val);
}
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