The TxCap blobs are additional data blobs used on Apple devices, and
are uploaded analogously to CLM blobs. Add core support for doing this.
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
@@ -101,7 +101,7 @@ void brcmf_c_set_joinpref_default(struct brcmf_if *ifp)
static int brcmf_c_download(struct brcmf_if *ifp, u16 flag,
struct brcmf_dload_data_le *dload_buf,
- u32 len)
+ u32 len, const char *var)
{
s32 err;
@@ -112,17 +112,17 @@ static int brcmf_c_download(struct brcmf_if *ifp, u16 flag,
dload_buf->crc = cpu_to_le32(0);
len = sizeof(*dload_buf) + len - 1;
- err = brcmf_fil_iovar_data_set(ifp, "clmload", dload_buf, len);
+ err = brcmf_fil_iovar_data_set(ifp, var, dload_buf, len);
return err;
}
-static int brcmf_c_process_clm_blob(struct brcmf_if *ifp)
+static int brcmf_c_download_blob(struct brcmf_if *ifp,
+ const void *data, size_t size,
+ const char *loadvar, const char *statvar)
{
struct brcmf_pub *drvr = ifp->drvr;
- struct brcmf_bus *bus = drvr->bus_if;
struct brcmf_dload_data_le *chunk_buf;
- const struct firmware *clm = NULL;
u32 chunk_len;
u32 datalen;
u32 cumulative_len;
@@ -132,20 +132,11 @@ static int brcmf_c_process_clm_blob(struct brcmf_if *ifp)
brcmf_dbg(TRACE, "Enter\n");
- err = brcmf_bus_get_blob(bus, &clm, BRCMF_BLOB_CLM);
- if (err || !clm) {
- brcmf_info("no clm_blob available (err=%d), device may have limited channels available\n",
- err);
- return 0;
- }
-
chunk_buf = kzalloc(sizeof(*chunk_buf) + MAX_CHUNK_LEN - 1, GFP_KERNEL);
- if (!chunk_buf) {
- err = -ENOMEM;
- goto done;
- }
+ if (!chunk_buf)
+ return -ENOMEM;
- datalen = clm->size;
+ datalen = size;
cumulative_len = 0;
do {
if (datalen > MAX_CHUNK_LEN) {
@@ -154,9 +145,10 @@ static int brcmf_c_process_clm_blob(struct brcmf_if *ifp)
chunk_len = datalen;
dl_flag |= DL_END;
}
- memcpy(chunk_buf->data, clm->data + cumulative_len, chunk_len);
+ memcpy(chunk_buf->data, data + cumulative_len, chunk_len);
- err = brcmf_c_download(ifp, dl_flag, chunk_buf, chunk_len);
+ err = brcmf_c_download(ifp, dl_flag, chunk_buf, chunk_len,
+ loadvar);
dl_flag &= ~DL_BEGIN;
@@ -165,20 +157,64 @@ static int brcmf_c_process_clm_blob(struct brcmf_if *ifp)
} while ((datalen > 0) && (err == 0));
if (err) {
- bphy_err(drvr, "clmload (%zu byte file) failed (%d)\n",
- clm->size, err);
- /* Retrieve clmload_status and print */
- err = brcmf_fil_iovar_int_get(ifp, "clmload_status", &status);
+ bphy_err(drvr, "%s (%zu byte file) failed (%d)\n",
+ loadvar, size, err);
+ /* Retrieve status and print */
+ err = brcmf_fil_iovar_int_get(ifp, statvar, &status);
if (err)
- bphy_err(drvr, "get clmload_status failed (%d)\n", err);
+ bphy_err(drvr, "get %s failed (%d)\n", statvar, err);
else
- brcmf_dbg(INFO, "clmload_status=%d\n", status);
+ brcmf_dbg(INFO, "%s=%d\n", statvar, status);
err = -EIO;
}
kfree(chunk_buf);
-done:
- release_firmware(clm);
+ return err;
+}
+
+static int brcmf_c_process_clm_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_CLM);
+ if (err || !fw) {
+ brcmf_info("no clm_blob available (err=%d), device may have limited channels available\n",
+ err);
+ return 0;
+ }
+
+ err = brcmf_c_download_blob(ifp, fw->data, fw->size,
+ "clmload", "clmload_status");
+
+ release_firmware(fw);
+ return err;
+}
+
+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");
+
+ release_firmware(fw);
return err;
}
@@ -248,6 +284,13 @@ int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
goto done;
}
+ /* Do TxCap downloading, if needed */
+ err = brcmf_c_process_txcap_blob(ifp);
+ if (err < 0) {
+ bphy_err(drvr, "download TxCap blob file failed, %d\n", err);
+ goto done;
+ }
+
/* query for 'ver' to get version info from firmware */
memset(buf, 0, sizeof(buf));
err = brcmf_fil_iovar_data_get(ifp, "ver", buf, sizeof(buf));
--
2.33.0
