diff options
author | Arend Van Spriel <arend.vanspriel@broadcom.com> | 2018-03-22 23:28:26 +0300 |
---|---|---|
committer | Kalle Valo <kvalo@codeaurora.org> | 2018-03-27 12:04:30 +0300 |
commit | d09ae51a4b676151edaf572bcd5f272b5532639f (patch) | |
tree | 9a0346049ba43ea205e8c48b17692077558a4175 /drivers/net/wireless/broadcom/brcm80211 | |
parent | 41f573dbb534f14e62a4a5411f602c970cad1d77 (diff) | |
download | linux-d09ae51a4b676151edaf572bcd5f272b5532639f.tar.xz |
brcmfmac: pass struct in brcmf_fw_get_firmwares()
Make the function brcmf_fw_get_firmwares() a bit more easy to extend
using a structure to pass the request parameters.
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>
Diffstat (limited to 'drivers/net/wireless/broadcom/brcm80211')
5 files changed, 245 insertions, 86 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c index 6945f582dbb7..95004dbba942 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c @@ -438,18 +438,31 @@ void brcmf_fw_nvram_free(void *nvram) struct brcmf_fw { struct device *dev; - u16 flags; - const struct firmware *code; - const char *nvram_name; - u16 domain_nr; - u16 bus_nr; - void (*done)(struct device *dev, int err, const struct firmware *fw, - void *nvram_image, u32 nvram_len); + struct brcmf_fw_request *req; + u32 curpos; + void (*done)(struct device *dev, int err, struct brcmf_fw_request *req); }; +static void brcmf_fw_request_done(const struct firmware *fw, void *ctx); + +static void brcmf_fw_free_request(struct brcmf_fw_request *req) +{ + struct brcmf_fw_item *item; + int i; + + for (i = 0, item = &req->items[0]; i < req->n_items; i++, item++) { + if (item->type == BRCMF_FW_TYPE_BINARY) + release_firmware(item->binary); + else if (item->type == BRCMF_FW_TYPE_NVRAM) + brcmf_fw_nvram_free(item->nv_data.data); + } + kfree(req); +} + static void brcmf_fw_request_nvram_done(const struct firmware *fw, void *ctx) { struct brcmf_fw *fwctx = ctx; + struct brcmf_fw_item *cur; u32 nvram_length = 0; void *nvram = NULL; u8 *data = NULL; @@ -457,83 +470,150 @@ static void brcmf_fw_request_nvram_done(const struct firmware *fw, void *ctx) bool raw_nvram; brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(fwctx->dev)); + + cur = &fwctx->req->items[fwctx->curpos]; + 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 && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL)) + if (!data && !(cur->flags & BRCMF_FW_REQF_OPTIONAL)) goto fail; raw_nvram = true; } if (data) nvram = brcmf_fw_nvram_strip(data, data_len, &nvram_length, - fwctx->domain_nr, fwctx->bus_nr); + fwctx->req->domain_nr, + fwctx->req->bus_nr); if (raw_nvram) bcm47xx_nvram_release_contents(data); release_firmware(fw); - if (!nvram && !(fwctx->flags & BRCMF_FW_REQ_NV_OPTIONAL)) + if (!nvram && !(cur->flags & BRCMF_FW_REQF_OPTIONAL)) goto fail; - fwctx->done(fwctx->dev, 0, fwctx->code, nvram, nvram_length); - kfree(fwctx); + brcmf_dbg(TRACE, "nvram %p len %d\n", nvram, nvram_length); + cur->nv_data.data = nvram; + cur->nv_data.len = nvram_length; return; fail: brcmf_dbg(TRACE, "failed: dev=%s\n", dev_name(fwctx->dev)); - release_firmware(fwctx->code); - fwctx->done(fwctx->dev, -ENOENT, NULL, NULL, 0); + fwctx->done(fwctx->dev, -ENOENT, NULL); + brcmf_fw_free_request(fwctx->req); kfree(fwctx); } -static void brcmf_fw_request_code_done(const struct firmware *fw, void *ctx) +static int brcmf_fw_request_next_item(struct brcmf_fw *fwctx, bool async) +{ + struct brcmf_fw_item *cur; + const struct firmware *fw = NULL; + int ret; + + cur = &fwctx->req->items[fwctx->curpos]; + + brcmf_dbg(TRACE, "%srequest for %s\n", async ? "async " : "", + cur->path); + + if (async) + ret = request_firmware_nowait(THIS_MODULE, true, cur->path, + fwctx->dev, GFP_KERNEL, fwctx, + brcmf_fw_request_done); + else + ret = request_firmware(&fw, cur->path, fwctx->dev); + + if (ret < 0) { + brcmf_fw_request_done(NULL, fwctx); + } else if (!async && fw) { + brcmf_dbg(TRACE, "firmware %s %sfound\n", cur->path, + fw ? "" : "not "); + if (cur->type == BRCMF_FW_TYPE_BINARY) + cur->binary = fw; + else if (cur->type == BRCMF_FW_TYPE_NVRAM) + brcmf_fw_request_nvram_done(fw, fwctx); + else + release_firmware(fw); + + return -EAGAIN; + } + return 0; +} + +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; - brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(fwctx->dev)); - if (!fw) { + cur = &fwctx->req->items[fwctx->curpos]; + + brcmf_dbg(TRACE, "enter: firmware %s %sfound\n", cur->path, + fw ? "" : "not "); + + if (fw) { + if (cur->type == BRCMF_FW_TYPE_BINARY) + cur->binary = fw; + else if (cur->type == BRCMF_FW_TYPE_NVRAM) + brcmf_fw_request_nvram_done(fw, fwctx); + else + release_firmware(fw); + } else if (cur->type == BRCMF_FW_TYPE_NVRAM) { + brcmf_fw_request_nvram_done(NULL, fwctx); + } else if (!(cur->flags & BRCMF_FW_REQF_OPTIONAL)) { ret = -ENOENT; goto fail; } - /* only requested code so done here */ - if (!(fwctx->flags & BRCMF_FW_REQUEST_NVRAM)) - goto done; - fwctx->code = fw; - ret = request_firmware_nowait(THIS_MODULE, true, fwctx->nvram_name, - fwctx->dev, GFP_KERNEL, fwctx, - brcmf_fw_request_nvram_done); + do { + if (++fwctx->curpos == fwctx->req->n_items) { + ret = 0; + goto done; + } + + ret = brcmf_fw_request_next_item(fwctx, false); + } while (ret == -EAGAIN); - /* pass NULL to nvram callback for bcm47xx fallback */ - if (ret) - brcmf_fw_request_nvram_done(NULL, fwctx); return; fail: - brcmf_dbg(TRACE, "failed: dev=%s\n", dev_name(fwctx->dev)); + 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; done: - fwctx->done(fwctx->dev, ret, fw, NULL, 0); + fwctx->done(fwctx->dev, ret, fwctx->req); kfree(fwctx); } -int brcmf_fw_get_firmwares_pcie(struct device *dev, u16 flags, - const char *code, const char *nvram, - void (*fw_cb)(struct device *dev, int err, - const struct firmware *fw, - void *nvram_image, u32 nvram_len), - u16 domain_nr, u16 bus_nr) +static bool brcmf_fw_request_is_valid(struct brcmf_fw_request *req) +{ + struct brcmf_fw_item *item; + int i; + + if (!req->n_items) + return false; + + for (i = 0, item = &req->items[0]; i < req->n_items; i++, item++) { + if (!item->path) + return false; + } + return true; +} + +int brcmf_fw_get_firmwares(struct device *dev, struct brcmf_fw_request *req, + void (*fw_cb)(struct device *dev, int err, + struct brcmf_fw_request *req)) { struct brcmf_fw *fwctx; brcmf_dbg(TRACE, "enter: dev=%s\n", dev_name(dev)); - if (!fw_cb || !code) + if (!fw_cb) return -EINVAL; - if ((flags & BRCMF_FW_REQUEST_NVRAM) && !nvram) + if (!brcmf_fw_request_is_valid(req)) return -EINVAL; fwctx = kzalloc(sizeof(*fwctx), GFP_KERNEL); @@ -541,26 +621,11 @@ int brcmf_fw_get_firmwares_pcie(struct device *dev, u16 flags, return -ENOMEM; fwctx->dev = dev; - fwctx->flags = flags; + fwctx->req = req; fwctx->done = fw_cb; - if (flags & BRCMF_FW_REQUEST_NVRAM) - fwctx->nvram_name = nvram; - fwctx->domain_nr = domain_nr; - fwctx->bus_nr = bus_nr; - - return request_firmware_nowait(THIS_MODULE, true, code, dev, - GFP_KERNEL, fwctx, - brcmf_fw_request_code_done); -} -int brcmf_fw_get_firmwares(struct device *dev, u16 flags, - const char *code, const char *nvram, - void (*fw_cb)(struct device *dev, int err, - const struct firmware *fw, - void *nvram_image, u32 nvram_len)) -{ - return brcmf_fw_get_firmwares_pcie(dev, flags, code, nvram, fw_cb, 0, - 0); + brcmf_fw_request_next_item(fwctx, true); + return 0; } static void brcmf_fw_get_full_name(char fw_name[BRCMF_FW_NAME_LEN], diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h index 50218e9b39ce..1ca630e237c8 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.h @@ -16,10 +16,7 @@ #ifndef BRCMFMAC_FIRMWARE_H #define BRCMFMAC_FIRMWARE_H -#define BRCMF_FW_REQUEST 0x000F -#define BRCMF_FW_REQUEST_NVRAM 0x0001 -#define BRCMF_FW_REQ_FLAGS 0x00F0 -#define BRCMF_FW_REQ_NV_OPTIONAL 0x0010 +#define BRCMF_FW_REQF_OPTIONAL 0x0001 #define BRCMF_FW_NAME_LEN 320 @@ -54,21 +51,39 @@ int brcmf_fw_map_chip_to_name(u32 chip, u32 chiprev, u32 table_size, char fw_name[BRCMF_FW_NAME_LEN], char nvram_name[BRCMF_FW_NAME_LEN]); void brcmf_fw_nvram_free(void *nvram); + +enum brcmf_fw_type { + BRCMF_FW_TYPE_BINARY, + BRCMF_FW_TYPE_NVRAM +}; + +struct brcmf_fw_item { + const char *path; + enum brcmf_fw_type type; + u16 flags; + union { + const struct firmware *binary; + struct { + void *data; + u32 len; + } nv_data; + }; +}; + +struct brcmf_fw_request { + u16 domain_nr; + u16 bus_nr; + u32 n_items; + struct brcmf_fw_item items[0]; +}; + /* * Request firmware(s) asynchronously. When the asynchronous request * fails it will not use the callback, but call device_release_driver() * instead which will call the driver .remove() callback. */ -int brcmf_fw_get_firmwares_pcie(struct device *dev, u16 flags, - const char *code, const char *nvram, - void (*fw_cb)(struct device *dev, int err, - const struct firmware *fw, - void *nvram_image, u32 nvram_len), - u16 domain_nr, u16 bus_nr); -int brcmf_fw_get_firmwares(struct device *dev, u16 flags, - const char *code, const char *nvram, +int brcmf_fw_get_firmwares(struct device *dev, struct brcmf_fw_request *req, void (*fw_cb)(struct device *dev, int err, - const struct firmware *fw, - void *nvram_image, u32 nvram_len)); + struct brcmf_fw_request *req)); #endif /* BRCMFMAC_FIRMWARE_H */ diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c index ca95f6c9f42d..a3fe29e65bd9 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c @@ -1651,15 +1651,19 @@ static const struct brcmf_buscore_ops brcmf_pcie_buscore_ops = { .write32 = brcmf_pcie_buscore_write32, }; +#define BRCMF_PCIE_FW_CODE 0 +#define BRCMF_PCIE_FW_NVRAM 1 + static void brcmf_pcie_setup(struct device *dev, int ret, - const struct firmware *fw, - void *nvram, u32 nvram_len) + struct brcmf_fw_request *fwreq) { + const struct firmware *fw; + void *nvram; struct brcmf_bus *bus; struct brcmf_pciedev *pcie_bus_dev; struct brcmf_pciedev_info *devinfo; struct brcmf_commonring **flowrings; - u32 i; + u32 i, nvram_len; /* check firmware loading result */ if (ret) @@ -1670,6 +1674,11 @@ static void brcmf_pcie_setup(struct device *dev, int ret, devinfo = pcie_bus_dev->devinfo; brcmf_pcie_attach(devinfo); + fw = fwreq->items[BRCMF_PCIE_FW_CODE].binary; + nvram = fwreq->items[BRCMF_PCIE_FW_NVRAM].nv_data.data; + nvram_len = fwreq->items[BRCMF_PCIE_FW_NVRAM].nv_data.len; + kfree(fwreq); + /* Some of the firmwares have the size of the memory of the device * defined inside the firmware. This is because part of the memory in * the device is shared and the devision is determined by FW. Parse @@ -1730,6 +1739,7 @@ static int brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) { int ret; + struct brcmf_fw_request *fwreq; struct brcmf_pciedev_info *devinfo; struct brcmf_pciedev *pcie_bus_dev; struct brcmf_bus *bus; @@ -1800,12 +1810,26 @@ brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (ret) goto fail_bus; - ret = brcmf_fw_get_firmwares_pcie(bus->dev, BRCMF_FW_REQUEST_NVRAM | - BRCMF_FW_REQ_NV_OPTIONAL, - devinfo->fw_name, devinfo->nvram_name, - brcmf_pcie_setup, domain_nr, bus_nr); + fwreq = kzalloc(sizeof(*fwreq) + 2 * sizeof(struct brcmf_fw_item), + GFP_KERNEL); + 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; + + kfree(fwreq); fail_bus: kfree(bus->msgbuf); kfree(bus); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index 3f7fd6f817a8..ab68eb1f04e4 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -4031,14 +4031,19 @@ static const struct brcmf_bus_ops brcmf_sdio_bus_ops = { .get_fwname = brcmf_sdio_get_fwname, }; +#define BRCMF_SDIO_FW_CODE 0 +#define BRCMF_SDIO_FW_NVRAM 1 + static void brcmf_sdio_firmware_callback(struct device *dev, int err, - const struct firmware *code, - void *nvram, u32 nvram_len) + struct brcmf_fw_request *fwreq) { struct brcmf_bus *bus_if = dev_get_drvdata(dev); struct brcmf_sdio_dev *sdiod = bus_if->bus_priv.sdio; struct brcmf_sdio *bus = sdiod->bus; struct brcmf_core *core = bus->sdio_core; + const struct firmware *code; + void *nvram; + u32 nvram_len; u8 saveclk; brcmf_dbg(TRACE, "Enter: dev=%s, err=%d\n", dev_name(dev), err); @@ -4046,6 +4051,11 @@ static void brcmf_sdio_firmware_callback(struct device *dev, int err, if (err) goto fail; + code = fwreq->items[BRCMF_SDIO_FW_CODE].binary; + nvram = fwreq->items[BRCMF_SDIO_FW_NVRAM].nv_data.data; + nvram_len = fwreq->items[BRCMF_SDIO_FW_NVRAM].nv_data.len; + kfree(fwreq); + /* try to download image and nvram to the dongle */ bus->alp_only = true; err = brcmf_sdio_download_firmware(bus, code, nvram, nvram_len); @@ -4150,6 +4160,7 @@ struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev) int ret; struct brcmf_sdio *bus; struct workqueue_struct *wq; + struct brcmf_fw_request *fwreq; brcmf_dbg(TRACE, "Enter\n"); @@ -4239,11 +4250,24 @@ struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev) if (ret) goto fail; - ret = brcmf_fw_get_firmwares(sdiodev->dev, BRCMF_FW_REQUEST_NVRAM, - sdiodev->fw_name, sdiodev->nvram_name, + fwreq = kzalloc(sizeof(fwreq) + 2 * sizeof(struct brcmf_fw_item), + GFP_KERNEL); + 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) { brcmf_err("async firmware request failed: %d\n", ret); + kfree(fwreq); goto fail; } diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c index f8968cf66bd0..055db1191445 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/usb.c @@ -1155,18 +1155,23 @@ static const struct brcmf_bus_ops brcmf_usb_bus_ops = { .get_fwname = brcmf_usb_get_fwname, }; +#define BRCMF_USB_FW_CODE 0 + static void brcmf_usb_probe_phase2(struct device *dev, int ret, - const struct firmware *fw, - void *nvram, u32 nvlen) + struct brcmf_fw_request *fwreq) { struct brcmf_bus *bus = dev_get_drvdata(dev); struct brcmf_usbdev_info *devinfo = bus->bus_priv.usb->devinfo; + const struct firmware *fw; if (ret) goto error; brcmf_dbg(USB, "Start fw downloading\n"); + fw = fwreq->items[BRCMF_USB_FW_CODE].binary; + kfree(fwreq); + ret = check_file(fw->data); if (ret < 0) { brcmf_err("invalid firmware\n"); @@ -1200,6 +1205,7 @@ static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo) struct brcmf_bus *bus = NULL; struct brcmf_usbdev *bus_pub = NULL; struct device *dev = devinfo->dev; + struct brcmf_fw_request *fwreq; int ret; brcmf_dbg(USB, "Enter\n"); @@ -1250,11 +1256,22 @@ static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo) if (ret) goto fail; + fwreq = kzalloc(sizeof(*fwreq) + sizeof(struct brcmf_fw_item), + GFP_KERNEL); + 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, 0, devinfo->fw_name, NULL, - brcmf_usb_probe_phase2); + ret = brcmf_fw_get_firmwares(dev, fwreq, brcmf_usb_probe_phase2); if (ret) { brcmf_err("firmware request failed: %d\n", ret); + kfree(fwreq); goto fail; } @@ -1447,11 +1464,25 @@ static int brcmf_usb_reset_resume(struct usb_interface *intf) { struct usb_device *usb = interface_to_usbdev(intf); struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev); + struct brcmf_fw_request *fwreq; + int ret; brcmf_dbg(USB, "Enter\n"); - return brcmf_fw_get_firmwares(&usb->dev, 0, devinfo->fw_name, NULL, - brcmf_usb_probe_phase2); + fwreq = kzalloc(sizeof(*fwreq) + sizeof(struct brcmf_fw_item), + GFP_KERNEL); + 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); + + return ret; } #define BRCMF_USB_DEVICE(dev_id) \ |