From: Rafał Miłecki Date: Wed, 7 Nov 2018 10:06:16 +0000 (+0100) Subject: mac80211: brcmfmac: backport NVRAM loading improvements X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=3eab6b8275b2b592d5f7694b871d53ecff8d65da;p=openwrt%2Fstaging%2Frmilecki.git mac80211: brcmfmac: backport NVRAM loading improvements This adds support for storing board specific NVRAM files as firmware. Signed-off-by: Rafał Miłecki --- diff --git a/package/kernel/mac80211/patches/brcm/320-v4.21-0003-brcmfmac-Add-support-for-first-trying-to-get-a-board.patch b/package/kernel/mac80211/patches/brcm/320-v4.21-0003-brcmfmac-Add-support-for-first-trying-to-get-a-board.patch new file mode 100644 index 00000000000..727dcbe85a8 --- /dev/null +++ b/package/kernel/mac80211/patches/brcm/320-v4.21-0003-brcmfmac-Add-support-for-first-trying-to-get-a-board.patch @@ -0,0 +1,77 @@ +From eae8e50669e15002b195177212a6e25afbe7cf4d Mon Sep 17 00:00:00 2001 +From: Hans de Goede +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 +Signed-off-by: Kalle Valo +--- + .../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]; + }; + diff --git a/package/kernel/mac80211/patches/brcm/320-v4.21-0004-brcmfmac-Set-board_type-used-for-nvram-file-selectio.patch b/package/kernel/mac80211/patches/brcm/320-v4.21-0004-brcmfmac-Set-board_type-used-for-nvram-file-selectio.patch new file mode 100644 index 00000000000..a33ceaa21ed --- /dev/null +++ b/package/kernel/mac80211/patches/brcm/320-v4.21-0004-brcmfmac-Set-board_type-used-for-nvram-file-selectio.patch @@ -0,0 +1,77 @@ +From 0ad4b55b2f29784f93875e6231bf57cd233624a2 Mon Sep 17 00:00:00 2001 +From: Hans de Goede +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 +Signed-off-by: Kalle Valo +--- + 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; + } diff --git a/package/kernel/mac80211/patches/brcm/320-v4.21-0005-brcmfmac-Set-board_type-from-DMI-on-x86-based-machin.patch b/package/kernel/mac80211/patches/brcm/320-v4.21-0005-brcmfmac-Set-board_type-from-DMI-on-x86-based-machin.patch new file mode 100644 index 00000000000..25426e3f109 --- /dev/null +++ b/package/kernel/mac80211/patches/brcm/320-v4.21-0005-brcmfmac-Set-board_type-from-DMI-on-x86-based-machin.patch @@ -0,0 +1,179 @@ +From bd1e82bb420adf4ad7cd468d8a482cde622dd69d Mon Sep 17 00:00:00 2001 +From: Hans de Goede +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 +Signed-off-by: Kalle Valo +--- + .../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 ++ * ++ * 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 ++#include ++#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; ++ } ++} diff --git a/package/kernel/mac80211/patches/brcm/320-v4.21-0006-brcmfmac-Cleanup-brcmf_fw_request_done.patch b/package/kernel/mac80211/patches/brcm/320-v4.21-0006-brcmfmac-Cleanup-brcmf_fw_request_done.patch new file mode 100644 index 00000000000..211e9e4a9fc --- /dev/null +++ b/package/kernel/mac80211/patches/brcm/320-v4.21-0006-brcmfmac-Cleanup-brcmf_fw_request_done.patch @@ -0,0 +1,41 @@ +From 55e491edbf14b2da5419c2a319ea3b1d6368d9a2 Mon Sep 17 00:00:00 2001 +From: Hans de Goede +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 +Signed-off-by: Kalle Valo +--- + 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; + } diff --git a/package/kernel/mac80211/patches/brcm/321-v4.21-0001-brcmfmac-Add-support-for-getting-nvram-contents-from.patch b/package/kernel/mac80211/patches/brcm/321-v4.21-0001-brcmfmac-Add-support-for-getting-nvram-contents-from.patch new file mode 100644 index 00000000000..88e5c67735b --- /dev/null +++ b/package/kernel/mac80211/patches/brcm/321-v4.21-0001-brcmfmac-Add-support-for-getting-nvram-contents-from.patch @@ -0,0 +1,132 @@ +From ce2e6db554fad444fa0b3904fc3015336e0ef765 Mon Sep 17 00:00:00 2001 +From: Hans de Goede +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 +Signed-off-by: Hans de Goede +Signed-off-by: Kalle Valo +--- + .../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 + #include + #include + #include +@@ -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; diff --git a/package/kernel/mac80211/patches/brcm/321-v4.21-0002-brcmfmac-Fix-ccode-from-EFI-nvram-when-necessary.patch b/package/kernel/mac80211/patches/brcm/321-v4.21-0002-brcmfmac-Fix-ccode-from-EFI-nvram-when-necessary.patch new file mode 100644 index 00000000000..c2fd620d6c9 --- /dev/null +++ b/package/kernel/mac80211/patches/brcm/321-v4.21-0002-brcmfmac-Fix-ccode-from-EFI-nvram-when-necessary.patch @@ -0,0 +1,97 @@ +From 29ec3394f0bd85c22674ab6693d92da5e2324610 Mon Sep 17 00:00:00 2001 +From: Hans de Goede +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 +Signed-off-by: Hans de Goede +Signed-off-by: Kalle Valo +--- + .../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); diff --git a/package/kernel/mac80211/patches/brcm/860-brcmfmac-register-wiphy-s-during-module_init.patch b/package/kernel/mac80211/patches/brcm/860-brcmfmac-register-wiphy-s-during-module_init.patch index ed95e7a2407..574fcb40d77 100644 --- a/package/kernel/mac80211/patches/brcm/860-brcmfmac-register-wiphy-s-during-module_init.patch +++ b/package/kernel/mac80211/patches/brcm/860-brcmfmac-register-wiphy-s-during-module_init.patch @@ -23,7 +23,7 @@ Signed-off-by: Rafał Miłecki } --- 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 }; 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 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 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 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); diff --git a/package/kernel/mac80211/patches/brcm/863-brcmfmac-add-in-driver-tables-with-country-codes.patch b/package/kernel/mac80211/patches/brcm/863-brcmfmac-add-in-driver-tables-with-country-codes.patch index e7551c3a703..5bb70158108 100644 --- a/package/kernel/mac80211/patches/brcm/863-brcmfmac-add-in-driver-tables-with-country-codes.patch +++ b/package/kernel/mac80211/patches/brcm/863-brcmfmac-add-in-driver-tables-with-country-codes.patch @@ -49,9 +49,9 @@ Signed-off-by: Rafał Miłecki 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); +