static int brcmf_fw_request_next_item(struct brcmf_fw *fwctx, bool async)
{
struct brcmf_fw_item *cur;
const struct firmware *fw = NULL;
int ret;
cur = &fwctx->req->items[fwctx->curpos];
brcmf_dbg(TRACE, "%srequest for %s\n", async ? "async " : "",
cur->path);
if (async)
ret = request_firmware_nowait(THIS_MODULE, true, cur->path,
fwctx->dev, GFP_KERNEL, fwctx,
brcmf_fw_request_done);
else
ret = request_firmware(&fw, cur->path, fwctx->dev);
if (ret < 0) {
brcmf_fw_request_done(NULL, fwctx);
} else if (!async && fw) {
brcmf_dbg(TRACE, "firmware %s %sfound\n", cur->path,
fw ? "" : "not ");
if (cur->type == BRCMF_FW_TYPE_BINARY)
cur->binary = fw;
else if (cur->type == BRCMF_FW_TYPE_NVRAM)
brcmf_fw_request_nvram_done(fw, fwctx);
else
release_firmware(fw);
return -EAGAIN;
}
return 0;
}
static void brcmf_fw_request_code_done(const struct firmware *fw, void *ctx)
{
struct brcmf_fw *fwctx = ctx;
int ret;
brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(fwctx->dev));
if (!fw)
goto fail;
/* only requested code so done here */
if (!(fwctx->flags & BRCMF_FW_REQUEST_NVRAM)) {
fwctx->done(fwctx->dev, fw, NULL, 0);
kfree(fwctx);
return;
}
fwctx->code = fw;
ret = request_firmware_nowait(THIS_MODULE, true, fwctx->nvram_name,
fwctx->dev, GFP_KERNEL, fwctx,
brcmf_fw_request_nvram_done);
if (!ret)
return;
brcmf_fw_request_nvram_done(NULL, fwctx);
return;
fail:
brcmf_dbg(TRACE, "failed: dev=%s\n", dev_name(fwctx->dev));
device_release_driver(fwctx->dev);
kfree(fwctx);
}
static void brcmf_fw_request_done(const struct firmware *fw, void *ctx)
{
struct brcmf_fw *fwctx = ctx;
struct brcmf_fw_item *cur;
int ret = 0;
cur = &fwctx->req->items[fwctx->curpos];
brcmf_dbg(TRACE, "enter: firmware %s %sfound\n", cur->path,
fw ? "" : "not ");
if (!fw)
ret = -ENOENT;
switch (cur->type) {
case BRCMF_FW_TYPE_NVRAM:
ret = brcmf_fw_request_nvram_done(fw, fwctx);
break;
case BRCMF_FW_TYPE_BINARY:
cur->binary = fw;
break;
default:
/* something fishy here so bail out early */
brcmf_err("unknown fw type: %d\n", cur->type);
release_firmware(fw);
ret = -EINVAL;
goto fail;
}
if (ret < 0 && !(cur->flags & BRCMF_FW_REQF_OPTIONAL))
goto fail;
do {
if (++fwctx->curpos == fwctx->req->n_items) {
ret = 0;
goto done;
}
ret = brcmf_fw_request_next_item(fwctx, false);
} while (ret == -EAGAIN);
return;
fail:
brcmf_dbg(TRACE, "failed err=%d: dev=%s, fw=%s\n", ret,
dev_name(fwctx->dev), cur->path);
brcmf_fw_free_request(fwctx->req);
fwctx->req = NULL;
done:
fwctx->done(fwctx->dev, ret, fwctx->req);
kfree(fwctx);
}
