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mac80211: backport brcmfmac firmware & clm_blob loading rework
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It backports remaining brcmfmac changes from 4.17.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit 7e8eb7f)
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Rafał Miłecki committed Jun 23, 2018
1 parent 72f6025 commit 2811c97
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Showing 8 changed files with 1,392 additions and 41 deletions.
574 changes: 574 additions & 0 deletions ...rnel/mac80211/patches/327-v4.17-0007-brcmfmac-pass-struct-in-brcmf_fw_get_firmwares.patch
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328 changes: 328 additions & 0 deletions .../mac80211/patches/327-v4.17-0008-brcmfmac-introduce-brcmf_fw_alloc_request-function.patch
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@@ -0,0 +1,328 @@
From 2baa3aaee27f137b8db9a9224d0fe9b281d28e34 Mon Sep 17 00:00:00 2001
From: Arend Van Spriel <arend.vanspriel@broadcom.com>
Date: Thu, 22 Mar 2018 21:28:27 +0100
Subject: [PATCH] brcmfmac: introduce brcmf_fw_alloc_request() function

The function brcmf_fw_alloc_request() takes a list of required files
and allocated the struct brcmf_fw_request instance accordingly. The
request can be modified by the caller before being passed to the
brcmf_fw_request_firmwares() function.

Reviewed-by: Hante Meuleman <hante.meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieter-paul.giesberts@broadcom.com>
Reviewed-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
.../broadcom/brcm80211/brcmfmac/firmware.c | 58 ++++++++++++++++++++++
.../broadcom/brcm80211/brcmfmac/firmware.h | 11 ++++
.../wireless/broadcom/brcm80211/brcmfmac/pcie.c | 58 ++++++++++++----------
.../wireless/broadcom/brcm80211/brcmfmac/sdio.c | 38 ++++++++------
.../net/wireless/broadcom/brcm80211/brcmfmac/usb.c | 42 +++++++++-------
5 files changed, 147 insertions(+), 60 deletions(-)

--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c
@@ -688,3 +688,61 @@ int brcmf_fw_map_chip_to_name(u32 chip,
return 0;
}

+struct brcmf_fw_request *
+brcmf_fw_alloc_request(u32 chip, u32 chiprev,
+ struct brcmf_firmware_mapping mapping_table[],
+ u32 table_size, struct brcmf_fw_name *fwnames,
+ u32 n_fwnames)
+{
+ struct brcmf_fw_request *fwreq;
+ char chipname[12];
+ const char *mp_path;
+ u32 i, j;
+ char end;
+ size_t reqsz;
+
+ for (i = 0; i < table_size; i++) {
+ if (mapping_table[i].chipid == chip &&
+ mapping_table[i].revmask & BIT(chiprev))
+ break;
+ }
+
+ if (i == table_size) {
+ brcmf_err("Unknown chipid %d [%d]\n", chip, chiprev);
+ return NULL;
+ }
+
+ reqsz = sizeof(*fwreq) + n_fwnames * sizeof(struct brcmf_fw_item);
+ fwreq = kzalloc(reqsz, GFP_KERNEL);
+ if (!fwreq)
+ return NULL;
+
+ brcmf_chip_name(chip, chiprev, chipname, sizeof(chipname));
+
+ brcmf_info("using %s for chip %s\n",
+ mapping_table[i].fw_base, chipname);
+
+ mp_path = brcmf_mp_global.firmware_path;
+ end = mp_path[strlen(mp_path) - 1];
+ fwreq->n_items = n_fwnames;
+
+ for (j = 0; j < n_fwnames; j++) {
+ fwreq->items[j].path = fwnames[j].path;
+ /* check if firmware path is provided by module parameter */
+ if (brcmf_mp_global.firmware_path[0] != '\0') {
+ strlcpy(fwnames[j].path, mp_path,
+ BRCMF_FW_NAME_LEN);
+
+ if (end != '/') {
+ strlcat(fwnames[j].path, "/",
+ BRCMF_FW_NAME_LEN);
+ }
+ }
+ brcmf_fw_get_full_name(fwnames[j].path,
+ mapping_table[i].fw_base,
+ fwnames[j].extension);
+ fwreq->items[j].path = fwnames[j].path;
+ }
+
+ return fwreq;
+}
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h
@@ -77,6 +77,17 @@ struct brcmf_fw_request {
struct brcmf_fw_item items[0];
};

+struct brcmf_fw_name {
+ const char *extension;
+ char *path;
+};
+
+struct brcmf_fw_request *
+brcmf_fw_alloc_request(u32 chip, u32 chiprev,
+ struct brcmf_firmware_mapping mapping_table[],
+ u32 table_size, struct brcmf_fw_name *fwnames,
+ u32 n_fwnames);
+
/*
* Request firmware(s) asynchronously. When the asynchronous request
* fails it will not use the callback, but call device_release_driver()
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
@@ -1735,6 +1735,31 @@ fail:
device_release_driver(dev);
}

+static struct brcmf_fw_request *
+brcmf_pcie_prepare_fw_request(struct brcmf_pciedev_info *devinfo)
+{
+ struct brcmf_fw_request *fwreq;
+ struct brcmf_fw_name fwnames[] = {
+ { ".bin", devinfo->fw_name },
+ { ".txt", devinfo->nvram_name },
+ };
+
+ fwreq = brcmf_fw_alloc_request(devinfo->ci->chip, devinfo->ci->chiprev,
+ brcmf_pcie_fwnames,
+ ARRAY_SIZE(brcmf_pcie_fwnames),
+ fwnames, ARRAY_SIZE(fwnames));
+ if (!fwreq)
+ return NULL;
+
+ 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->domain_nr = pci_domain_nr(devinfo->pdev->bus);
+ fwreq->bus_nr = devinfo->pdev->bus->number;
+
+ return fwreq;
+}
+
static int
brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
{
@@ -1743,13 +1768,8 @@ brcmf_pcie_probe(struct pci_dev *pdev, c
struct brcmf_pciedev_info *devinfo;
struct brcmf_pciedev *pcie_bus_dev;
struct brcmf_bus *bus;
- u16 domain_nr;
- u16 bus_nr;

- domain_nr = pci_domain_nr(pdev->bus) + 1;
- bus_nr = pdev->bus->number;
- brcmf_dbg(PCIE, "Enter %x:%x (%d/%d)\n", pdev->vendor, pdev->device,
- domain_nr, bus_nr);
+ brcmf_dbg(PCIE, "Enter %x:%x\n", pdev->vendor, pdev->device);

ret = -ENOMEM;
devinfo = kzalloc(sizeof(*devinfo), GFP_KERNEL);
@@ -1803,33 +1823,19 @@ brcmf_pcie_probe(struct pci_dev *pdev, c
bus->wowl_supported = pci_pme_capable(pdev, PCI_D3hot);
dev_set_drvdata(&pdev->dev, bus);

- ret = brcmf_fw_map_chip_to_name(devinfo->ci->chip, devinfo->ci->chiprev,
- brcmf_pcie_fwnames,
- ARRAY_SIZE(brcmf_pcie_fwnames),
- devinfo->fw_name, devinfo->nvram_name);
- if (ret)
- goto fail_bus;
-
- fwreq = kzalloc(sizeof(*fwreq) + 2 * sizeof(struct brcmf_fw_item),
- GFP_KERNEL);
+ fwreq = brcmf_pcie_prepare_fw_request(devinfo);
if (!fwreq) {
ret = -ENOMEM;
goto fail_bus;
}

- fwreq->items[BRCMF_PCIE_FW_CODE].path = devinfo->fw_name;
- fwreq->items[BRCMF_PCIE_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
- fwreq->items[BRCMF_PCIE_FW_NVRAM].path = devinfo->nvram_name;
- fwreq->items[BRCMF_PCIE_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
- fwreq->items[BRCMF_PCIE_FW_NVRAM].flags = BRCMF_FW_REQF_OPTIONAL;
- fwreq->n_items = 2;
- fwreq->domain_nr = domain_nr;
- fwreq->bus_nr = bus_nr;
ret = brcmf_fw_get_firmwares(bus->dev, fwreq, brcmf_pcie_setup);
- if (ret == 0)
- return 0;
+ if (ret < 0) {
+ kfree(fwreq);
+ goto fail_bus;
+ }
+ return 0;

- kfree(fwreq);
fail_bus:
kfree(bus->msgbuf);
kfree(bus);
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -4155,6 +4155,28 @@ fail:
device_release_driver(dev);
}

+static struct brcmf_fw_request *
+brcmf_sdio_prepare_fw_request(struct brcmf_sdio *bus)
+{
+ struct brcmf_fw_request *fwreq;
+ struct brcmf_fw_name fwnames[] = {
+ { ".bin", bus->sdiodev->fw_name },
+ { ".txt", bus->sdiodev->nvram_name },
+ };
+
+ fwreq = brcmf_fw_alloc_request(bus->ci->chip, bus->ci->chiprev,
+ brcmf_sdio_fwnames,
+ ARRAY_SIZE(brcmf_sdio_fwnames),
+ fwnames, ARRAY_SIZE(fwnames));
+ if (!fwreq)
+ return NULL;
+
+ fwreq->items[BRCMF_SDIO_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
+ fwreq->items[BRCMF_SDIO_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
+
+ return fwreq;
+}
+
struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev)
{
int ret;
@@ -4244,26 +4266,12 @@ struct brcmf_sdio *brcmf_sdio_probe(stru

brcmf_dbg(INFO, "completed!!\n");

- ret = brcmf_fw_map_chip_to_name(bus->ci->chip, bus->ci->chiprev,
- brcmf_sdio_fwnames,
- ARRAY_SIZE(brcmf_sdio_fwnames),
- sdiodev->fw_name, sdiodev->nvram_name);
- if (ret)
- goto fail;
-
- fwreq = kzalloc(sizeof(fwreq) + 2 * sizeof(struct brcmf_fw_item),
- GFP_KERNEL);
+ fwreq = brcmf_sdio_prepare_fw_request(bus);
if (!fwreq) {
ret = -ENOMEM;
goto fail;
}

- fwreq->items[BRCMF_SDIO_FW_CODE].path = sdiodev->fw_name;
- fwreq->items[BRCMF_SDIO_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
- fwreq->items[BRCMF_SDIO_FW_NVRAM].path = sdiodev->nvram_name;
- fwreq->items[BRCMF_SDIO_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
- fwreq->n_items = 2;
-
ret = brcmf_fw_get_firmwares(sdiodev->dev, fwreq,
brcmf_sdio_firmware_callback);
if (ret != 0) {
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c
@@ -1200,6 +1200,27 @@ error:
device_release_driver(dev);
}

+static struct brcmf_fw_request *
+brcmf_usb_prepare_fw_request(struct brcmf_usbdev_info *devinfo)
+{
+ struct brcmf_fw_request *fwreq;
+ struct brcmf_fw_name fwnames[] = {
+ { ".bin", devinfo->fw_name },
+ };
+
+ fwreq = brcmf_fw_alloc_request(devinfo->bus_pub.devid,
+ devinfo->bus_pub.chiprev,
+ brcmf_usb_fwnames,
+ ARRAY_SIZE(brcmf_usb_fwnames),
+ fwnames, ARRAY_SIZE(fwnames));
+ if (!fwreq)
+ return NULL;
+
+ fwreq->items[BRCMF_USB_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
+
+ return fwreq;
+}
+
static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo)
{
struct brcmf_bus *bus = NULL;
@@ -1249,24 +1270,12 @@ static int brcmf_usb_probe_cb(struct brc
bus->chip = bus_pub->devid;
bus->chiprev = bus_pub->chiprev;

- ret = brcmf_fw_map_chip_to_name(bus_pub->devid, bus_pub->chiprev,
- brcmf_usb_fwnames,
- ARRAY_SIZE(brcmf_usb_fwnames),
- devinfo->fw_name, NULL);
- if (ret)
- goto fail;
-
- fwreq = kzalloc(sizeof(*fwreq) + sizeof(struct brcmf_fw_item),
- GFP_KERNEL);
+ fwreq = brcmf_usb_prepare_fw_request(devinfo);
if (!fwreq) {
ret = -ENOMEM;
goto fail;
}

- fwreq->items[BRCMF_USB_FW_CODE].path = devinfo->fw_name;
- fwreq->items[BRCMF_USB_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
- fwreq->n_items = 1;
-
/* request firmware here */
ret = brcmf_fw_get_firmwares(dev, fwreq, brcmf_usb_probe_phase2);
if (ret) {
@@ -1469,15 +1478,10 @@ static int brcmf_usb_reset_resume(struct

brcmf_dbg(USB, "Enter\n");

- fwreq = kzalloc(sizeof(*fwreq) + sizeof(struct brcmf_fw_item),
- GFP_KERNEL);
+ fwreq = brcmf_usb_prepare_fw_request(devinfo);
if (!fwreq)
return -ENOMEM;

- fwreq->items[BRCMF_USB_FW_CODE].path = devinfo->fw_name;
- fwreq->items[BRCMF_USB_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
- fwreq->n_items = 1;
-
ret = brcmf_fw_get_firmwares(&usb->dev, fwreq, brcmf_usb_probe_phase2);
if (ret < 0)
kfree(fwreq);

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