On 1/4/2022 8:26 AM, Hector Martin wrote:
The TxCap blobs are additional data blobs used on Apple devices, and are uploaded analogously to CLM blobs. Add core support for doing this.
Reviewed-by: Arend van Spriel <arend.vanspriel@xxxxxxxxxxxx>
Acked-by: Linus Walleij <linus.walleij@xxxxxxxxxx> Signed-off-by: Hector Martin <marcan@xxxxxxxxx> --- .../broadcom/brcm80211/brcmfmac/bus.h | 1 + .../broadcom/brcm80211/brcmfmac/common.c | 97 +++++++++++++------ 2 files changed, 71 insertions(+), 27 deletions(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h index b13af8f631f3..f4bd98da9761 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bus.h @@ -39,6 +39,7 @@ enum brcmf_bus_protocol_type { /* Firmware blobs that may be available */ enum brcmf_blob_type { BRCMF_BLOB_CLM, + BRCMF_BLOB_TXCAP, };struct brcmf_mp_device;diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c index c84c48e49fde..d65308c3f070 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
[...]
@@ -165,20 +157,64 @@ static int brcmf_c_process_clm_blob(struct brcmf_if *ifp) } while ((datalen > 0) && (err == 0));
[...]
+static int brcmf_c_process_txcap_blob(struct brcmf_if *ifp)
+{
+ struct brcmf_pub *drvr = ifp->drvr;
+ struct brcmf_bus *bus = drvr->bus_if;
+ const struct firmware *fw = NULL;
+ s32 err;
+
+ brcmf_dbg(TRACE, "Enter\n");
+
+ err = brcmf_bus_get_blob(bus, &fw, BRCMF_BLOB_TXCAP);
+ if (err || !fw) {
+ brcmf_info("no txcap_blob available (err=%d)\n", err);
+ return 0;
+ }
+
+ brcmf_info("TxCap blob found, loading\n");
+ err = brcmf_c_download_blob(ifp, fw->data, fw->size,
+ "txcapload", "txcapload_status");
Although unlikely that we end up here with a firmware that does not support this command it is not impossible. Should we handle that here or introduce a feature flag for txcap loading?
+ release_firmware(fw); return err; }
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