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180 lines
6.2 KiB
Diff
180 lines
6.2 KiB
Diff
From bd1e82bb420adf4ad7cd468d8a482cde622dd69d Mon Sep 17 00:00:00 2001
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From: Hans de Goede <hdegoede@redhat.com>
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Date: Wed, 10 Oct 2018 13:01:02 +0200
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Subject: [PATCH] brcmfmac: Set board_type from DMI on x86 based machines
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For x86 based machines, set the board_type used for nvram file selection
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based on the DMI sys-vendor and product-name strings.
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Since on some models these strings are too generic, this commit also adds
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a quirk table overriding the strings for models listed in that table.
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The board_type setting is used to load the board-specific nvram file with
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a board-specific name so that we can ship files for each supported board
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in linux-firmware.
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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---
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.../wireless/broadcom/brcm80211/brcmfmac/Makefile | 2 +
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.../wireless/broadcom/brcm80211/brcmfmac/common.c | 3 +-
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.../wireless/broadcom/brcm80211/brcmfmac/common.h | 7 ++
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.../net/wireless/broadcom/brcm80211/brcmfmac/dmi.c | 116 +++++++++++++++++++++
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4 files changed, 127 insertions(+), 1 deletion(-)
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create mode 100644 drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/Makefile
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@@ -54,3 +54,5 @@ brcmfmac-$(CPTCFG_BRCM_TRACING) += \
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tracepoint.o
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brcmfmac-$(CONFIG_OF) += \
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of.o
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+brcmfmac-$(CONFIG_DMI) += \
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+ dmi.o
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
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@@ -448,8 +448,9 @@ struct brcmf_mp_device *brcmf_get_module
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}
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}
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if (!found) {
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- /* No platform data for this device, try OF (Open Firwmare) */
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+ /* No platform data for this device, try OF and DMI data */
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brcmf_of_probe(dev, bus_type, settings);
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+ brcmf_dmi_probe(settings, chip, chiprev);
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}
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return settings;
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}
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.h
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@@ -75,4 +75,11 @@ void brcmf_release_module_param(struct b
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/* Sets dongle media info (drv_version, mac address). */
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int brcmf_c_preinit_dcmds(struct brcmf_if *ifp);
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+#ifdef CONFIG_DMI
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+void brcmf_dmi_probe(struct brcmf_mp_device *settings, u32 chip, u32 chiprev);
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+#else
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+static inline void
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+brcmf_dmi_probe(struct brcmf_mp_device *settings, u32 chip, u32 chiprev) {}
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+#endif
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+
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#endif /* BRCMFMAC_COMMON_H */
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--- /dev/null
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/dmi.c
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@@ -0,0 +1,116 @@
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+/*
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+ * Copyright 2018 Hans de Goede <hdegoede@redhat.com>
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+ *
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+ * Permission to use, copy, modify, and/or distribute this software for any
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+ * purpose with or without fee is hereby granted, provided that the above
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+ * copyright notice and this permission notice appear in all copies.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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+ */
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+
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+#include <linux/dmi.h>
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+#include <linux/mod_devicetable.h>
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+#include "core.h"
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+#include "common.h"
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+#include "brcm_hw_ids.h"
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+
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+/* The DMI data never changes so we can use a static buf for this */
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+static char dmi_board_type[128];
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+
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+struct brcmf_dmi_data {
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+ u32 chip;
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+ u32 chiprev;
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+ const char *board_type;
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+};
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+
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+/* NOTE: Please keep all entries sorted alphabetically */
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+
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+static const struct brcmf_dmi_data gpd_win_pocket_data = {
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+ BRCM_CC_4356_CHIP_ID, 2, "gpd-win-pocket"
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+};
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+
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+static const struct brcmf_dmi_data jumper_ezpad_mini3_data = {
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+ BRCM_CC_43430_CHIP_ID, 0, "jumper-ezpad-mini3"
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+};
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+
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+static const struct brcmf_dmi_data meegopad_t08_data = {
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+ BRCM_CC_43340_CHIP_ID, 2, "meegopad-t08"
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+};
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+
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+static const struct dmi_system_id dmi_platform_data[] = {
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+ {
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+ /* Match for the GPDwin which unfortunately uses somewhat
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+ * generic dmi strings, which is why we test for 4 strings.
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+ * Comparing against 23 other byt/cht boards, board_vendor
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+ * and board_name are unique to the GPDwin, where as only one
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+ * other board has the same board_serial and 3 others have
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+ * the same default product_name. Also the GPDwin is the
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+ * only device to have both board_ and product_name not set.
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+ */
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+ .matches = {
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+ DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
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+ DMI_MATCH(DMI_BOARD_NAME, "Default string"),
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+ DMI_MATCH(DMI_BOARD_SERIAL, "Default string"),
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+ DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
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+ },
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+ .driver_data = (void *)&gpd_win_pocket_data,
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+ },
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+ {
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+ /* Jumper EZpad mini3 */
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+ .matches = {
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+ DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
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+ DMI_MATCH(DMI_PRODUCT_NAME, "CherryTrail"),
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+ /* jumperx.T87.KFBNEEA02 with the version-nr dropped */
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+ DMI_MATCH(DMI_BIOS_VERSION, "jumperx.T87.KFBNEEA"),
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+ },
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+ .driver_data = (void *)&jumper_ezpad_mini3_data,
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+ },
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+ {
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+ /* Meegopad T08 */
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+ .matches = {
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+ DMI_MATCH(DMI_SYS_VENDOR, "Default string"),
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+ DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
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+ DMI_MATCH(DMI_BOARD_NAME, "T3 MRD"),
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+ DMI_MATCH(DMI_BOARD_VERSION, "V1.1"),
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+ },
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+ .driver_data = (void *)&meegopad_t08_data,
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+ },
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+ {}
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+};
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+
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+void brcmf_dmi_probe(struct brcmf_mp_device *settings, u32 chip, u32 chiprev)
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+{
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+ const struct dmi_system_id *match;
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+ const struct brcmf_dmi_data *data;
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+ const char *sys_vendor;
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+ const char *product_name;
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+
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+ /* Some models have DMI strings which are too generic, e.g.
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+ * "Default string", we use a quirk table for these.
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+ */
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+ for (match = dmi_first_match(dmi_platform_data);
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+ match;
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+ match = dmi_first_match(match + 1)) {
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+ data = match->driver_data;
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+
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+ if (data->chip == chip && data->chiprev == chiprev) {
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+ settings->board_type = data->board_type;
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+ return;
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+ }
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+ }
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+
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+ /* Not found in the quirk-table, use sys_vendor-product_name */
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+ sys_vendor = dmi_get_system_info(DMI_SYS_VENDOR);
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+ product_name = dmi_get_system_info(DMI_PRODUCT_NAME);
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+ if (sys_vendor && product_name) {
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+ snprintf(dmi_board_type, sizeof(dmi_board_type), "%s-%s",
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+ sys_vendor, product_name);
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+ settings->board_type = dmi_board_type;
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+ }
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+}
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