mirror of https://github.com/hak5/openwrt-owl.git
mac80211: brcmfmac: backport NVRAM loading improvements
This adds support for storing board specific NVRAM files as firmware. Signed-off-by: Rafał Miłecki <rafal@milecki.pl>master
Rafał Miłecki
parent
5932eb690f
commit
3eab6b8275
|
|
@ -0,0 +1,77 @@
|
|||
From eae8e50669e15002b195177212a6e25afbe7cf4d Mon Sep 17 00:00:00 2001
|
||||
From: Hans de Goede <hdegoede@redhat.com>
|
||||
Date: Wed, 10 Oct 2018 13:01:00 +0200
|
||||
Subject: [PATCH] brcmfmac: Add support for first trying to get a board
|
||||
specific nvram file
|
||||
|
||||
The nvram files which some brcmfmac chips need are board-specific. To be
|
||||
able to distribute these as part of linux-firmware, so that devices with
|
||||
such a wifi chip will work OOTB, multiple (one per board) versions must
|
||||
co-exist under /lib/firmware.
|
||||
|
||||
This commit adds support for callers of the brcmfmac/firmware.c code to
|
||||
pass in a board_type parameter through the request structure.
|
||||
|
||||
If that parameter is set then the code will first try to load
|
||||
chipmodel.board_type.txt before falling back to the old chipmodel.txt name.
|
||||
|
||||
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
||||
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
||||
---
|
||||
.../broadcom/brcm80211/brcmfmac/firmware.c | 27 +++++++++++++++++++++-
|
||||
.../broadcom/brcm80211/brcmfmac/firmware.h | 1 +
|
||||
2 files changed, 27 insertions(+), 1 deletion(-)
|
||||
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
|
||||
@@ -532,6 +532,31 @@ static int brcmf_fw_complete_request(con
|
||||
return (cur->flags & BRCMF_FW_REQF_OPTIONAL) ? 0 : ret;
|
||||
}
|
||||
|
||||
+static int brcmf_fw_request_firmware(const struct firmware **fw,
|
||||
+ struct brcmf_fw *fwctx)
|
||||
+{
|
||||
+ struct brcmf_fw_item *cur = &fwctx->req->items[fwctx->curpos];
|
||||
+ int ret;
|
||||
+
|
||||
+ /* nvram files are board-specific, first try a board-specific path */
|
||||
+ if (cur->type == BRCMF_FW_TYPE_NVRAM && fwctx->req->board_type) {
|
||||
+ char alt_path[BRCMF_FW_NAME_LEN];
|
||||
+
|
||||
+ strlcpy(alt_path, cur->path, BRCMF_FW_NAME_LEN);
|
||||
+ /* strip .txt at the end */
|
||||
+ alt_path[strlen(alt_path) - 4] = 0;
|
||||
+ strlcat(alt_path, ".", BRCMF_FW_NAME_LEN);
|
||||
+ strlcat(alt_path, fwctx->req->board_type, BRCMF_FW_NAME_LEN);
|
||||
+ strlcat(alt_path, ".txt", BRCMF_FW_NAME_LEN);
|
||||
+
|
||||
+ ret = request_firmware(fw, alt_path, fwctx->dev);
|
||||
+ if (ret == 0)
|
||||
+ return ret;
|
||||
+ }
|
||||
+
|
||||
+ return request_firmware(fw, cur->path, fwctx->dev);
|
||||
+}
|
||||
+
|
||||
static void brcmf_fw_request_done(const struct firmware *fw, void *ctx)
|
||||
{
|
||||
struct brcmf_fw *fwctx = ctx;
|
||||
@@ -544,7 +569,7 @@ static void brcmf_fw_request_done(const
|
||||
|
||||
while (ret == 0 && ++fwctx->curpos < fwctx->req->n_items) {
|
||||
cur = &fwctx->req->items[fwctx->curpos];
|
||||
- request_firmware(&fw, cur->path, fwctx->dev);
|
||||
+ brcmf_fw_request_firmware(&fw, fwctx);
|
||||
ret = brcmf_fw_complete_request(fw, ctx);
|
||||
}
|
||||
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h
|
||||
@@ -70,6 +70,7 @@ struct brcmf_fw_request {
|
||||
u16 domain_nr;
|
||||
u16 bus_nr;
|
||||
u32 n_items;
|
||||
+ const char *board_type;
|
||||
struct brcmf_fw_item items[0];
|
||||
};
|
||||
|
||||
|
|
@ -0,0 +1,77 @@
|
|||
From 0ad4b55b2f29784f93875e6231bf57cd233624a2 Mon Sep 17 00:00:00 2001
|
||||
From: Hans de Goede <hdegoede@redhat.com>
|
||||
Date: Wed, 10 Oct 2018 13:01:01 +0200
|
||||
Subject: [PATCH] brcmfmac: Set board_type used for nvram file selection to
|
||||
machine-compatible
|
||||
|
||||
For of/devicetree using machines, set the board_type used for nvram file
|
||||
selection to the first string listed in the top-level's node compatible
|
||||
string, aka the machine-compatible as used by of_machine_is_compatible().
|
||||
|
||||
The board_type setting is used to load the board-specific nvram file with
|
||||
a board-specific name so that we can ship files for each supported board
|
||||
in linux-firmware.
|
||||
|
||||
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
||||
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
||||
---
|
||||
drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h | 1 +
|
||||
drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c | 11 ++++++++++-
|
||||
drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 1 +
|
||||
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c | 1 +
|
||||
4 files changed, 13 insertions(+), 1 deletion(-)
|
||||
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
|
||||
@@ -59,6 +59,7 @@ struct brcmf_mp_device {
|
||||
bool iapp;
|
||||
bool ignore_probe_fail;
|
||||
struct brcmfmac_pd_cc *country_codes;
|
||||
+ const char *board_type;
|
||||
union {
|
||||
struct brcmfmac_sdio_pd sdio;
|
||||
} bus;
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/of.c
|
||||
@@ -27,11 +27,20 @@ void brcmf_of_probe(struct device *dev,
|
||||
struct brcmf_mp_device *settings)
|
||||
{
|
||||
struct brcmfmac_sdio_pd *sdio = &settings->bus.sdio;
|
||||
- struct device_node *np = dev->of_node;
|
||||
+ struct device_node *root, *np = dev->of_node;
|
||||
+ struct property *prop;
|
||||
int irq;
|
||||
u32 irqf;
|
||||
u32 val;
|
||||
|
||||
+ /* Set board-type to the first string of the machine compatible prop */
|
||||
+ root = of_find_node_by_path("/");
|
||||
+ if (root) {
|
||||
+ prop = of_find_property(root, "compatible", NULL);
|
||||
+ settings->board_type = of_prop_next_string(prop, NULL);
|
||||
+ of_node_put(root);
|
||||
+ }
|
||||
+
|
||||
if (!np || bus_type != BRCMF_BUSTYPE_SDIO ||
|
||||
!of_device_is_compatible(np, "brcm,bcm4329-fmac"))
|
||||
return;
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
|
||||
@@ -1785,6 +1785,7 @@ brcmf_pcie_prepare_fw_request(struct brc
|
||||
fwreq->items[BRCMF_PCIE_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
|
||||
fwreq->items[BRCMF_PCIE_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
|
||||
fwreq->items[BRCMF_PCIE_FW_NVRAM].flags = BRCMF_FW_REQF_OPTIONAL;
|
||||
+ fwreq->board_type = devinfo->settings->board_type;
|
||||
/* NVRAM reserves PCI domain 0 for Broadcom's SDK faked bus */
|
||||
fwreq->domain_nr = pci_domain_nr(devinfo->pdev->bus) + 1;
|
||||
fwreq->bus_nr = devinfo->pdev->bus->number;
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
|
||||
@@ -4174,6 +4174,7 @@ brcmf_sdio_prepare_fw_request(struct brc
|
||||
|
||||
fwreq->items[BRCMF_SDIO_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
|
||||
fwreq->items[BRCMF_SDIO_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
|
||||
+ fwreq->board_type = bus->sdiodev->settings->board_type;
|
||||
|
||||
return fwreq;
|
||||
}
|
||||
|
|
@ -0,0 +1,179 @@
|
|||
From bd1e82bb420adf4ad7cd468d8a482cde622dd69d Mon Sep 17 00:00:00 2001
|
||||
From: Hans de Goede <hdegoede@redhat.com>
|
||||
Date: Wed, 10 Oct 2018 13:01:02 +0200
|
||||
Subject: [PATCH] brcmfmac: Set board_type from DMI on x86 based machines
|
||||
|
||||
For x86 based machines, set the board_type used for nvram file selection
|
||||
based on the DMI sys-vendor and product-name strings.
|
||||
|
||||
Since on some models these strings are too generic, this commit also adds
|
||||
a quirk table overriding the strings for models listed in that table.
|
||||
|
||||
The board_type setting is used to load the board-specific nvram file with
|
||||
a board-specific name so that we can ship files for each supported board
|
||||
in linux-firmware.
|
||||
|
||||
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
||||
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
||||
---
|
||||
.../wireless/broadcom/brcm80211/brcmfmac/Makefile | 2 +
|
||||
.../wireless/broadcom/brcm80211/brcmfmac/common.c | 3 +-
|
||||
.../wireless/broadcom/brcm80211/brcmfmac/common.h | 7 ++
|
||||
.../net/wireless/broadcom/brcm80211/brcmfmac/dmi.c | 116 +++++++++++++++++++++
|
||||
4 files changed, 127 insertions(+), 1 deletion(-)
|
||||
create mode 100644 drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
|
||||
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile
|
||||
@@ -54,3 +54,5 @@ brcmfmac-$(CPTCFG_BRCM_TRACING) += \
|
||||
tracepoint.o
|
||||
brcmfmac-$(CONFIG_OF) += \
|
||||
of.o
|
||||
+brcmfmac-$(CONFIG_DMI) += \
|
||||
+ dmi.o
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
|
||||
@@ -448,8 +448,9 @@ struct brcmf_mp_device *brcmf_get_module
|
||||
}
|
||||
}
|
||||
if (!found) {
|
||||
- /* No platform data for this device, try OF (Open Firwmare) */
|
||||
+ /* No platform data for this device, try OF and DMI data */
|
||||
brcmf_of_probe(dev, bus_type, settings);
|
||||
+ brcmf_dmi_probe(settings, chip, chiprev);
|
||||
}
|
||||
return settings;
|
||||
}
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
|
||||
@@ -75,4 +75,11 @@ void brcmf_release_module_param(struct b
|
||||
/* Sets dongle media info (drv_version, mac address). */
|
||||
int brcmf_c_preinit_dcmds(struct brcmf_if *ifp);
|
||||
|
||||
+#ifdef CONFIG_DMI
|
||||
+void brcmf_dmi_probe(struct brcmf_mp_device *settings, u32 chip, u32 chiprev);
|
||||
+#else
|
||||
+static inline void
|
||||
+brcmf_dmi_probe(struct brcmf_mp_device *settings, u32 chip, u32 chiprev) {}
|
||||
+#endif
|
||||
+
|
||||
#endif /* BRCMFMAC_COMMON_H */
|
||||
--- /dev/null
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
|
||||
@@ -0,0 +1,116 @@
|
||||
+/*
|
||||
+ * Copyright 2018 Hans de Goede <hdegoede@redhat.com>
|
||||
+ *
|
||||
+ * Permission to use, copy, modify, and/or distribute this software for any
|
||||
+ * purpose with or without fee is hereby granted, provided that the above
|
||||
+ * copyright notice and this permission notice appear in all copies.
|
||||
+ *
|
||||
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
||||
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
||||
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
||||
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
+ */
|
||||
+
|
||||
+#include <linux/dmi.h>
|
||||
+#include <linux/mod_devicetable.h>
|
||||
+#include "core.h"
|
||||
+#include "common.h"
|
||||
+#include "brcm_hw_ids.h"
|
||||
+
|
||||
+/* The DMI data never changes so we can use a static buf for this */
|
||||
+static char dmi_board_type[128];
|
||||
+
|
||||
+struct brcmf_dmi_data {
|
||||
+ u32 chip;
|
||||
+ u32 chiprev;
|
||||
+ const char *board_type;
|
||||
+};
|
||||
+
|
||||
+/* NOTE: Please keep all entries sorted alphabetically */
|
||||
+
|
||||
+static const struct brcmf_dmi_data gpd_win_pocket_data = {
|
||||
+ BRCM_CC_4356_CHIP_ID, 2, "gpd-win-pocket"
|
||||
+};
|
||||
+
|
||||
+static const struct brcmf_dmi_data jumper_ezpad_mini3_data = {
|
||||
+ BRCM_CC_43430_CHIP_ID, 0, "jumper-ezpad-mini3"
|
||||
+};
|
||||
+
|
||||
+static const struct brcmf_dmi_data meegopad_t08_data = {
|
||||
+ BRCM_CC_43340_CHIP_ID, 2, "meegopad-t08"
|
||||
+};
|
||||
+
|
||||
+static const struct dmi_system_id dmi_platform_data[] = {
|
||||
+ {
|
||||
+ /* Match for the GPDwin which unfortunately uses somewhat
|
||||
+ * generic dmi strings, which is why we test for 4 strings.
|
||||
+ * Comparing against 23 other byt/cht boards, board_vendor
|
||||
+ * and board_name are unique to the GPDwin, where as only one
|
||||
+ * other board has the same board_serial and 3 others have
|
||||
+ * the same default product_name. Also the GPDwin is the
|
||||
+ * only device to have both board_ and product_name not set.
|
||||
+ */
|
||||
+ .matches = {
|
||||
+ DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
|
||||
+ DMI_MATCH(DMI_BOARD_NAME, "Default string"),
|
||||
+ DMI_MATCH(DMI_BOARD_SERIAL, "Default string"),
|
||||
+ DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
|
||||
+ },
|
||||
+ .driver_data = (void *)&gpd_win_pocket_data,
|
||||
+ },
|
||||
+ {
|
||||
+ /* Jumper EZpad mini3 */
|
||||
+ .matches = {
|
||||
+ DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
|
||||
+ DMI_MATCH(DMI_PRODUCT_NAME, "CherryTrail"),
|
||||
+ /* jumperx.T87.KFBNEEA02 with the version-nr dropped */
|
||||
+ DMI_MATCH(DMI_BIOS_VERSION, "jumperx.T87.KFBNEEA"),
|
||||
+ },
|
||||
+ .driver_data = (void *)&jumper_ezpad_mini3_data,
|
||||
+ },
|
||||
+ {
|
||||
+ /* Meegopad T08 */
|
||||
+ .matches = {
|
||||
+ DMI_MATCH(DMI_SYS_VENDOR, "Default string"),
|
||||
+ DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
|
||||
+ DMI_MATCH(DMI_BOARD_NAME, "T3 MRD"),
|
||||
+ DMI_MATCH(DMI_BOARD_VERSION, "V1.1"),
|
||||
+ },
|
||||
+ .driver_data = (void *)&meegopad_t08_data,
|
||||
+ },
|
||||
+ {}
|
||||
+};
|
||||
+
|
||||
+void brcmf_dmi_probe(struct brcmf_mp_device *settings, u32 chip, u32 chiprev)
|
||||
+{
|
||||
+ const struct dmi_system_id *match;
|
||||
+ const struct brcmf_dmi_data *data;
|
||||
+ const char *sys_vendor;
|
||||
+ const char *product_name;
|
||||
+
|
||||
+ /* Some models have DMI strings which are too generic, e.g.
|
||||
+ * "Default string", we use a quirk table for these.
|
||||
+ */
|
||||
+ for (match = dmi_first_match(dmi_platform_data);
|
||||
+ match;
|
||||
+ match = dmi_first_match(match + 1)) {
|
||||
+ data = match->driver_data;
|
||||
+
|
||||
+ if (data->chip == chip && data->chiprev == chiprev) {
|
||||
+ settings->board_type = data->board_type;
|
||||
+ return;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ /* Not found in the quirk-table, use sys_vendor-product_name */
|
||||
+ sys_vendor = dmi_get_system_info(DMI_SYS_VENDOR);
|
||||
+ product_name = dmi_get_system_info(DMI_PRODUCT_NAME);
|
||||
+ if (sys_vendor && product_name) {
|
||||
+ snprintf(dmi_board_type, sizeof(dmi_board_type), "%s-%s",
|
||||
+ sys_vendor, product_name);
|
||||
+ settings->board_type = dmi_board_type;
|
||||
+ }
|
||||
+}
|
||||
|
|
@ -0,0 +1,41 @@
|
|||
From 55e491edbf14b2da5419c2a319ea3b1d6368d9a2 Mon Sep 17 00:00:00 2001
|
||||
From: Hans de Goede <hdegoede@redhat.com>
|
||||
Date: Wed, 10 Oct 2018 13:01:03 +0200
|
||||
Subject: [PATCH] brcmfmac: Cleanup brcmf_fw_request_done()
|
||||
|
||||
The "cur" variable is now only used for a debug print and we already
|
||||
print the same info from brcmf_fw_complete_request(), so the debug print
|
||||
does not provide any extra info and we can remove it.
|
||||
|
||||
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
||||
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
||||
---
|
||||
drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c | 8 +-------
|
||||
1 file changed, 1 insertion(+), 7 deletions(-)
|
||||
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
|
||||
@@ -560,22 +560,16 @@ static int brcmf_fw_request_firmware(con
|
||||
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];
|
||||
+ int ret;
|
||||
|
||||
ret = brcmf_fw_complete_request(fw, fwctx);
|
||||
|
||||
while (ret == 0 && ++fwctx->curpos < fwctx->req->n_items) {
|
||||
- cur = &fwctx->req->items[fwctx->curpos];
|
||||
brcmf_fw_request_firmware(&fw, fwctx);
|
||||
ret = brcmf_fw_complete_request(fw, ctx);
|
||||
}
|
||||
|
||||
if (ret) {
|
||||
- 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;
|
||||
}
|
||||
|
|
@ -0,0 +1,132 @@
|
|||
From ce2e6db554fad444fa0b3904fc3015336e0ef765 Mon Sep 17 00:00:00 2001
|
||||
From: Hans de Goede <hdegoede@redhat.com>
|
||||
Date: Thu, 11 Oct 2018 11:51:06 +0200
|
||||
Subject: [PATCH] brcmfmac: Add support for getting nvram contents from EFI
|
||||
variables
|
||||
|
||||
Various X86 laptops with a SDIO attached brcmfmac wifi chip, store the
|
||||
nvram contents in a special EFI variable. This commit adds support for
|
||||
getting nvram directly from this EFI variable, without the user needing
|
||||
to manually copy it.
|
||||
|
||||
This makes Wifi / Bluetooth work out of the box on these devices instead of
|
||||
requiring manual setup.
|
||||
|
||||
This has been tested on the following models: Acer Iconia Tab8 w1-810,
|
||||
Acer One 10, Asus T100CHI, Asus T100HA, Asus T100TA, Asus T200TA and a
|
||||
Lenovo Mixx 2 8.
|
||||
|
||||
Tested-by: Hans de Goede <hdegoede@redhat.com>
|
||||
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
||||
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
||||
---
|
||||
.../broadcom/brcm80211/brcmfmac/firmware.c | 63 +++++++++++++++++++---
|
||||
1 file changed, 57 insertions(+), 6 deletions(-)
|
||||
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
|
||||
@@ -14,6 +14,7 @@
|
||||
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
+#include <linux/efi.h>
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/device.h>
|
||||
@@ -445,6 +446,51 @@ struct brcmf_fw {
|
||||
|
||||
static void brcmf_fw_request_done(const struct firmware *fw, void *ctx);
|
||||
|
||||
+#ifdef CONFIG_EFI
|
||||
+static u8 *brcmf_fw_nvram_from_efi(size_t *data_len_ret)
|
||||
+{
|
||||
+ const u16 name[] = { 'n', 'v', 'r', 'a', 'm', 0 };
|
||||
+ struct efivar_entry *nvram_efivar;
|
||||
+ unsigned long data_len = 0;
|
||||
+ u8 *data = NULL;
|
||||
+ int err;
|
||||
+
|
||||
+ nvram_efivar = kzalloc(sizeof(*nvram_efivar), GFP_KERNEL);
|
||||
+ if (!nvram_efivar)
|
||||
+ return NULL;
|
||||
+
|
||||
+ memcpy(&nvram_efivar->var.VariableName, name, sizeof(name));
|
||||
+ nvram_efivar->var.VendorGuid = EFI_GUID(0x74b00bd9, 0x805a, 0x4d61,
|
||||
+ 0xb5, 0x1f, 0x43, 0x26,
|
||||
+ 0x81, 0x23, 0xd1, 0x13);
|
||||
+
|
||||
+ err = efivar_entry_size(nvram_efivar, &data_len);
|
||||
+ if (err)
|
||||
+ goto fail;
|
||||
+
|
||||
+ data = kmalloc(data_len, GFP_KERNEL);
|
||||
+ if (!data)
|
||||
+ goto fail;
|
||||
+
|
||||
+ err = efivar_entry_get(nvram_efivar, NULL, &data_len, data);
|
||||
+ if (err)
|
||||
+ goto fail;
|
||||
+
|
||||
+ brcmf_info("Using nvram EFI variable\n");
|
||||
+
|
||||
+ kfree(nvram_efivar);
|
||||
+ *data_len_ret = data_len;
|
||||
+ return data;
|
||||
+
|
||||
+fail:
|
||||
+ kfree(data);
|
||||
+ kfree(nvram_efivar);
|
||||
+ return NULL;
|
||||
+}
|
||||
+#else
|
||||
+static u8 *brcmf_fw_nvram_from_efi(size_t *data_len) { return NULL; }
|
||||
+#endif
|
||||
+
|
||||
static void brcmf_fw_free_request(struct brcmf_fw_request *req)
|
||||
{
|
||||
struct brcmf_fw_item *item;
|
||||
@@ -463,11 +509,12 @@ static int brcmf_fw_request_nvram_done(c
|
||||
{
|
||||
struct brcmf_fw *fwctx = ctx;
|
||||
struct brcmf_fw_item *cur;
|
||||
+ bool free_bcm47xx_nvram = false;
|
||||
+ bool kfree_nvram = false;
|
||||
u32 nvram_length = 0;
|
||||
void *nvram = NULL;
|
||||
u8 *data = NULL;
|
||||
size_t data_len;
|
||||
- bool raw_nvram;
|
||||
|
||||
brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(fwctx->dev));
|
||||
|
||||
@@ -476,12 +523,13 @@ static int brcmf_fw_request_nvram_done(c
|
||||
if (fw && fw->data) {
|
||||
data = (u8 *)fw->data;
|
||||
data_len = fw->size;
|
||||
- raw_nvram = false;
|
||||
} else {
|
||||
- data = bcm47xx_nvram_get_contents(&data_len);
|
||||
- if (!data && !(cur->flags & BRCMF_FW_REQF_OPTIONAL))
|
||||
+ if ((data = bcm47xx_nvram_get_contents(&data_len)))
|
||||
+ free_bcm47xx_nvram = true;
|
||||
+ else if ((data = brcmf_fw_nvram_from_efi(&data_len)))
|
||||
+ kfree_nvram = true;
|
||||
+ else if (!(cur->flags & BRCMF_FW_REQF_OPTIONAL))
|
||||
goto fail;
|
||||
- raw_nvram = true;
|
||||
}
|
||||
|
||||
if (data)
|
||||
@@ -489,8 +537,11 @@ static int brcmf_fw_request_nvram_done(c
|
||||
fwctx->req->domain_nr,
|
||||
fwctx->req->bus_nr);
|
||||
|
||||
- if (raw_nvram)
|
||||
+ if (free_bcm47xx_nvram)
|
||||
bcm47xx_nvram_release_contents(data);
|
||||
+ if (kfree_nvram)
|
||||
+ kfree(data);
|
||||
+
|
||||
release_firmware(fw);
|
||||
if (!nvram && !(cur->flags & BRCMF_FW_REQF_OPTIONAL))
|
||||
goto fail;
|
||||
|
|
@ -0,0 +1,97 @@
|
|||
From 29ec3394f0bd85c22674ab6693d92da5e2324610 Mon Sep 17 00:00:00 2001
|
||||
From: Hans de Goede <hdegoede@redhat.com>
|
||||
Date: Thu, 11 Oct 2018 11:51:07 +0200
|
||||
Subject: [PATCH] brcmfmac: Fix ccode from EFI nvram when necessary
|
||||
|
||||
In some cases the EFI-var stored nvram contains "ccode=ALL" or "ccode=XV"
|
||||
to specify "worldwide" compatible settings, but these 2 ccode-s do not work
|
||||
properly.
|
||||
|
||||
I've tested the different known "worldwide" ccode-s used in various nvram
|
||||
sources with the latest firmwares from linux-firmware for various brcmfmac
|
||||
models, here is a simplified (*) table with what each setting results in:
|
||||
|
||||
ALL: 12-14 disab, U-NII-1, U-NII-2 no-IR/radar, U-NII-3
|
||||
XV: 12-14 no-IR, disables all 5G channels
|
||||
XY: 12-13 enab, 14 disab, U-NII-1 enab, U-NII-2 no-IR/radar, U-NII-3 disab
|
||||
X2: 12-13 no-IR, 14 dis, U-NII-1 no-IR, U-NII-2 no-IR/radar, U-NII-3 no-IR
|
||||
|
||||
Where 12,13,14 are 2.4G channels 12-14 and U-NII-1/2/3 are the 3 different
|
||||
5G channel groups. no-IR is no-Initiate-Radiation, we will never send on
|
||||
these channels without first having received valid wifi traffic there.
|
||||
|
||||
This immediately shows that both ALL and XV are not as worldwide as we want
|
||||
them to be. ALL causes channels 12 and 13 to not be available and XV causes
|
||||
all 5GHz channels to not be available. Also ALL unconditionally enables the
|
||||
U-NII-1 and U-NII-3 5G groups, while we really should be using no-IR for
|
||||
these.
|
||||
|
||||
This commit replace XV and ALL with X2, which allows usage of chan 12-13
|
||||
and 5G channels, but only after receiving valid wifi traffic there first.
|
||||
|
||||
Note that this configure the firmware's channel limits, the kernels own
|
||||
regulatory restrictions based on e.g. regulatory info received from the
|
||||
access-point, will be applied on top of this.
|
||||
|
||||
This fixes channels 12+13 not working on the Asus T200TA and the Lenovo
|
||||
Mixx 2 8 and 5G channels not working on the Asus T100HA.
|
||||
|
||||
This has been tested on the following models: Acer Iconia Tab8 w1-810,
|
||||
Acer One 10, Asus T100CHI, Asus T100HA, Asus T100TA, Asus T200TA and a
|
||||
Lenovo Mixx 2 8.
|
||||
|
||||
*) There are some exceptions to this table:
|
||||
1) On really old firmware e.g. linux-firmware's 2011 brcmfmac4330-sdio.bin
|
||||
ALL really means all, unconditionally enabling everything
|
||||
2) The exact meaning might be influenced by setting the regrev nvram var.
|
||||
Specifically using ccode=XV + regrev=1 on brcmfmac43241b4 leads to:
|
||||
12-14 no-ir, U-NII-1 no-ir, U-NII-2 no-ir/radar, U-NII-3 no-ir
|
||||
But only on the brcmfmac43241b4 and not on e.g. the brcmfmac43340
|
||||
|
||||
Tested-by: Hans de Goede <hdegoede@redhat.com>
|
||||
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
|
||||
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
|
||||
---
|
||||
.../broadcom/brcm80211/brcmfmac/firmware.c | 24 ++++++++++++++++++++++
|
||||
1 file changed, 24 insertions(+)
|
||||
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
|
||||
@@ -447,6 +447,29 @@ struct brcmf_fw {
|
||||
static void brcmf_fw_request_done(const struct firmware *fw, void *ctx);
|
||||
|
||||
#ifdef CONFIG_EFI
|
||||
+/* In some cases the EFI-var stored nvram contains "ccode=ALL" or "ccode=XV"
|
||||
+ * to specify "worldwide" compatible settings, but these 2 ccode-s do not work
|
||||
+ * properly. "ccode=ALL" causes channels 12 and 13 to not be available,
|
||||
+ * "ccode=XV" causes all 5GHz channels to not be available. So we replace both
|
||||
+ * with "ccode=X2" which allows channels 12+13 and 5Ghz channels in
|
||||
+ * no-Initiate-Radiation mode. This means that we will never send on these
|
||||
+ * channels without first having received valid wifi traffic on the channel.
|
||||
+ */
|
||||
+static void brcmf_fw_fix_efi_nvram_ccode(char *data, unsigned long data_len)
|
||||
+{
|
||||
+ char *ccode;
|
||||
+
|
||||
+ ccode = strnstr((char *)data, "ccode=ALL", data_len);
|
||||
+ if (!ccode)
|
||||
+ ccode = strnstr((char *)data, "ccode=XV\r", data_len);
|
||||
+ if (!ccode)
|
||||
+ return;
|
||||
+
|
||||
+ ccode[6] = 'X';
|
||||
+ ccode[7] = '2';
|
||||
+ ccode[8] = '\r';
|
||||
+}
|
||||
+
|
||||
static u8 *brcmf_fw_nvram_from_efi(size_t *data_len_ret)
|
||||
{
|
||||
const u16 name[] = { 'n', 'v', 'r', 'a', 'm', 0 };
|
||||
@@ -476,6 +499,7 @@ static u8 *brcmf_fw_nvram_from_efi(size_
|
||||
if (err)
|
||||
goto fail;
|
||||
|
||||
+ brcmf_fw_fix_efi_nvram_ccode(data, data_len);
|
||||
brcmf_info("Using nvram EFI variable\n");
|
||||
|
||||
kfree(nvram_efivar);
|
||||
|
|
@ -23,7 +23,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|||
}
|
||||
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
|
||||
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
|
||||
@@ -441,6 +441,7 @@ struct brcmf_fw {
|
||||
@@ -442,6 +442,7 @@ struct brcmf_fw {
|
||||
struct brcmf_fw_request *req;
|
||||
u32 curpos;
|
||||
void (*done)(struct device *dev, int err, struct brcmf_fw_request *req);
|
||||
|
|
@ -31,7 +31,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|||
};
|
||||
|
||||
static void brcmf_fw_request_done(const struct firmware *fw, void *ctx);
|
||||
@@ -555,6 +556,8 @@ static void brcmf_fw_request_done(const
|
||||
@@ -649,6 +650,8 @@ static void brcmf_fw_request_done(const
|
||||
fwctx->req = NULL;
|
||||
}
|
||||
fwctx->done(fwctx->dev, ret, fwctx->req);
|
||||
|
|
@ -40,7 +40,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|||
kfree(fwctx);
|
||||
}
|
||||
|
||||
@@ -579,6 +582,7 @@ int brcmf_fw_get_firmwares(struct device
|
||||
@@ -673,6 +676,7 @@ int brcmf_fw_get_firmwares(struct device
|
||||
{
|
||||
struct brcmf_fw_item *first = &req->items[0];
|
||||
struct brcmf_fw *fwctx;
|
||||
|
|
@ -48,7 +48,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|||
int ret;
|
||||
|
||||
brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(dev));
|
||||
@@ -595,6 +599,9 @@ int brcmf_fw_get_firmwares(struct device
|
||||
@@ -689,6 +693,9 @@ int brcmf_fw_get_firmwares(struct device
|
||||
fwctx->dev = dev;
|
||||
fwctx->req = req;
|
||||
fwctx->done = fw_cb;
|
||||
|
|
@ -58,7 +58,7 @@ Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
|||
|
||||
ret = request_firmware_nowait(THIS_MODULE, true, first->path,
|
||||
fwctx->dev, GFP_KERNEL, fwctx,
|
||||
@@ -602,6 +609,9 @@ int brcmf_fw_get_firmwares(struct device
|
||||
@@ -696,6 +703,9 @@ int brcmf_fw_get_firmwares(struct device
|
||||
if (ret < 0)
|
||||
brcmf_fw_request_done(NULL, fwctx);
|
||||
|
||||
|
|
|
|||
|
|
@ -49,9 +49,9 @@ Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
|
|||
void brcmf_of_probe(struct device *dev, enum brcmf_bus_type bus_type,
|
||||
struct brcmf_mp_device *settings)
|
||||
{
|
||||
@@ -32,6 +62,8 @@ void brcmf_of_probe(struct device *dev,
|
||||
u32 irqf;
|
||||
u32 val;
|
||||
@@ -41,6 +71,8 @@ void brcmf_of_probe(struct device *dev,
|
||||
of_node_put(root);
|
||||
}
|
||||
|
||||
+ brcmf_of_probe_cc(dev, settings);
|
||||
+
|
||||
|
|
|
|||
Loading…
Reference in New Issue