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#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <stdlib.h>
#include <stdint.h>
#include <stdarg.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <arpa/inet.h>
#include <errno.h>
#include <assert.h>
#include "pci.h"
#include "tools.h"
#include "error.h"
int pcilib_init_register_banks(pcilib_t *ctx) {
int err;
err = pcilib_map_register_space(ctx);
if (err) return err;
for (; ctx->num_banks_init < ctx->num_banks; ctx->num_banks_init++) {
pcilib_register_bank_context_t *bank_ctx;
pcilib_register_protocol_t protocol;
const pcilib_register_protocol_api_description_t *bapi;
protocol = pcilib_find_register_protocol_by_addr(ctx, ctx->banks[ctx->num_banks_init].protocol);
if (protocol == PCILIB_REGISTER_PROTOCOL_INVALID) {
const char *name = ctx->banks[ctx->num_banks_init].name;
if (!name) name = "unnamed";
pcilib_error("Invalid register protocol address (%u) is specified for bank %i (%s)", ctx->banks[ctx->num_banks_init].protocol, ctx->banks[ctx->num_banks_init].addr, name);
return PCILIB_ERROR_INVALID_BANK;
}
bapi = ctx->protocols[protocol].api;
if (bapi->init) {
const char *model = ctx->protocols[protocol].model;
if (!model) model = ctx->model;
bank_ctx = bapi->init(ctx, ctx->num_banks_init, model, ctx->protocols[protocol].args);
} else
bank_ctx = (pcilib_register_bank_context_t*)malloc(sizeof(pcilib_register_bank_context_t));
if (!bank_ctx)
return PCILIB_ERROR_FAILED;
bank_ctx->bank = ctx->banks + ctx->num_banks_init;
bank_ctx->api = bapi;
ctx->bank_ctx[ctx->num_banks_init] = bank_ctx;
}
return 0;
}
void pcilib_free_register_banks(pcilib_t *ctx) {
size_t i;
for (i = 0; i < ctx->num_banks_init; i++) {
const pcilib_register_protocol_api_description_t *bapi = ctx->bank_ctx[i]->api;
if (ctx->bank_ctx[i]) {
if (bapi->free)
bapi->free(ctx->bank_ctx[i]);
else
free(ctx->bank_ctx[i]);
ctx->bank_ctx[i] = NULL;
}
}
ctx->num_banks_init = 0;
}
int pcilib_add_register_banks(pcilib_t *ctx, size_t n, const pcilib_register_bank_description_t *banks) {
// DS: What we are doing if bank exists?
if (!n) {
for (n = 0; banks[n].access; n++);
}
if ((ctx->num_banks + n + 1) > PCILIB_MAX_REGISTER_BANKS)
return PCILIB_ERROR_TOOBIG;
memset(ctx->banks + ctx->num_banks + n, 0, sizeof(pcilib_register_bank_description_t));
memcpy(ctx->banks + ctx->num_banks, banks, n * sizeof(pcilib_register_bank_description_t));
ctx->num_banks += n;
// If banks are already initialized, we need to re-run the initialization code
// DS: Locking is currently missing
if (ctx->reg_bar_mapped) {
ctx->reg_bar_mapped = 0;
return pcilib_init_register_banks(ctx);
}
return 0;
}
pcilib_register_bank_t pcilib_find_register_bank_by_addr(pcilib_t *ctx, pcilib_register_bank_addr_t bank) {
pcilib_register_bank_t i;
const pcilib_model_description_t *model_info = pcilib_get_model_description(ctx);
const pcilib_register_bank_description_t *banks = model_info->banks;
for (i = 0; banks[i].access; i++)
if (banks[i].addr == bank) return i;
return PCILIB_REGISTER_BANK_INVALID;
}
pcilib_register_bank_t pcilib_find_register_bank_by_name(pcilib_t *ctx, const char *bankname) {
pcilib_register_bank_t i;
const pcilib_model_description_t *model_info = pcilib_get_model_description(ctx);
const pcilib_register_bank_description_t *banks = model_info->banks;
for (i = 0; banks[i].access; i++)
if (!strcasecmp(banks[i].name, bankname)) return i;
return PCILIB_REGISTER_BANK_INVALID;
}
pcilib_register_bank_t pcilib_find_register_bank(pcilib_t *ctx, const char *bank) {
pcilib_register_bank_t res;
unsigned long addr;
if (!bank) {
const pcilib_model_description_t *model_info = pcilib_get_model_description(ctx);
const pcilib_register_bank_description_t *banks = model_info->banks;
if ((banks)&&(banks[0].access)) return (pcilib_register_bank_t)0;
return PCILIB_REGISTER_BANK_INVALID;
}
if (pcilib_isxnumber(bank)&&(sscanf(bank,"%lx", &addr) == 1)) {
res = pcilib_find_register_bank_by_addr(ctx, addr);
if (res != PCILIB_REGISTER_BANK_INVALID) return res;
}
return pcilib_find_register_bank_by_name(ctx, bank);
}
// DS: FIXME create hash during map_register space
pcilib_register_t pcilib_find_register(pcilib_t *ctx, const char *bank, const char *reg) {
pcilib_register_t i;
pcilib_register_bank_t bank_id;
pcilib_register_bank_addr_t bank_addr = 0;
const pcilib_model_description_t *model_info = pcilib_get_model_description(ctx);
const pcilib_register_description_t *registers = model_info->registers;
if (bank) {
bank_id = pcilib_find_register_bank(ctx, bank);
if (bank_id == PCILIB_REGISTER_BANK_INVALID) {
pcilib_error("Invalid bank (%s) is specified", bank);
return PCILIB_REGISTER_INVALID;
}
bank_addr = model_info->banks[bank_id].addr;
}
for (i = 0; registers[i].bits; i++) {
if ((!strcasecmp(registers[i].name, reg))&&((!bank)||(registers[i].bank == bank_addr))) return i;
}
return PCILIB_REGISTER_INVALID;
};
pcilib_register_protocol_t pcilib_find_register_protocol_by_addr(pcilib_t *ctx, pcilib_register_protocol_addr_t protocol) {
pcilib_register_protocol_t i;
const pcilib_model_description_t *model_info = pcilib_get_model_description(ctx);
const pcilib_register_protocol_description_t *protocols = model_info->protocols;
for (i = 0; protocols[i].api; i++)
if (protocols[i].addr == protocol) return i;
return PCILIB_REGISTER_PROTOCOL_INVALID;
}
pcilib_register_protocol_t pcilib_find_register_protocol_by_name(pcilib_t *ctx, const char *name) {
pcilib_register_protocol_t i;
const pcilib_model_description_t *model_info = pcilib_get_model_description(ctx);
const pcilib_register_protocol_description_t *protocols = model_info->protocols;
for (i = 0; protocols[i].api; i++)
if (!strcasecmp(protocols[i].name, name)) return i;
return PCILIB_REGISTER_PROTOCOL_INVALID;
}
pcilib_register_protocol_t pcilib_find_register_protocol(pcilib_t *ctx, const char *protocol) {
pcilib_register_bank_t res;
unsigned long addr;
if (pcilib_isxnumber(protocol)&&(sscanf(protocol,"%lx", &addr) == 1)) {
res = pcilib_find_register_protocol_by_addr(ctx, addr);
if (res != PCILIB_REGISTER_BANK_INVALID) return res;
}
return pcilib_find_register_protocol_by_name(ctx, protocol);
}
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