From 5b8045d484d0ef77d6aa9444023220c5671fa3fe Mon Sep 17 00:00:00 2001 From: Arend van Spriel Date: Tue, 27 May 2014 12:56:23 +0200 Subject: [PATCH] brcmfmac: use asynchronous firmware request in USB This patch adds use of asynchronous firmware request to the driver USB layer. Reviewed-by: Hante Meuleman Reviewed-by: Franky (Zhenhui) Lin Reviewed-by: Daniel (Deognyoun) Kim Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Arend van Spriel Signed-off-by: John W. Linville --- drivers/net/wireless/brcm80211/brcmfmac/usb.c | 98 +++++++++++++------ 1 file changed, 68 insertions(+), 30 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c index 8d679403518f..21335e2ca0e6 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c @@ -25,6 +25,7 @@ #include #include +#include "firmware.h" #include "usb_rdl.h" #include "usb.h" @@ -87,7 +88,7 @@ struct brcmf_usbdev_info { struct brcmf_usbreq *tx_reqs; struct brcmf_usbreq *rx_reqs; - u8 *image; /* buffer for combine fw and nvram */ + const u8 *image; /* buffer for combine fw and nvram */ int image_len; struct usb_device *usbdev; @@ -1021,7 +1022,7 @@ brcmf_usb_fw_download(struct brcmf_usbdev_info *devinfo) } err = brcmf_usb_dlstart(devinfo, - devinfo->image, devinfo->image_len); + (u8 *)devinfo->image, devinfo->image_len); if (err == 0) err = brcmf_usb_dlrun(devinfo); return err; @@ -1080,7 +1081,22 @@ static int check_file(const u8 *headers) return -1; } -static int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo) +static const char *brcmf_usb_get_fwname(struct brcmf_usbdev_info *devinfo) +{ + switch (devinfo->bus_pub.devid) { + case 43143: + return BRCMF_USB_43143_FW_NAME; + case 43235: + case 43236: + case 43238: + return BRCMF_USB_43236_FW_NAME; + case 43242: + return BRCMF_USB_43242_FW_NAME; + default: + return NULL; + } +} +static __used int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo) { s8 *fwname; const struct firmware *fw; @@ -1202,16 +1218,6 @@ struct brcmf_usbdev *brcmf_usb_attach(struct brcmf_usbdev_info *devinfo, goto error; } - if (!brcmf_usb_dlneeded(devinfo)) - return &devinfo->bus_pub; - - brcmf_dbg(USB, "Start fw downloading\n"); - if (brcmf_usb_get_fw(devinfo)) - goto error; - - if (brcmf_usb_fw_download(devinfo)) - goto error; - return &devinfo->bus_pub; error: @@ -1252,12 +1258,47 @@ static int brcmf_usb_bus_setup(struct brcmf_usbdev_info *devinfo) return ret; } +static void brcmf_usb_probe_phase2(struct device *dev, + const struct firmware *fw, + void *nvram, u32 nvlen) +{ + struct brcmf_bus *bus = dev_get_drvdata(dev); + struct brcmf_usbdev_info *devinfo; + int ret; + + brcmf_dbg(USB, "Start fw downloading\n"); + ret = check_file(fw->data); + if (ret < 0) { + brcmf_err("invalid firmware\n"); + release_firmware(fw); + goto error; + } + + devinfo = bus->bus_priv.usb->devinfo; + devinfo->image = fw->data; + devinfo->image_len = fw->size; + + ret = brcmf_usb_fw_download(devinfo); + release_firmware(fw); + if (ret) + goto error; + + ret = brcmf_usb_bus_setup(devinfo); + if (ret) + goto error; + + return; +error: + brcmf_dbg(TRACE, "failed: dev=%s, err=%d\n", dev_name(dev), ret); + device_release_driver(dev); +} + static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo) { struct brcmf_bus *bus = NULL; struct brcmf_usbdev *bus_pub = NULL; - int ret; struct device *dev = devinfo->dev; + int ret; brcmf_dbg(USB, "Enter\n"); bus_pub = brcmf_usb_attach(devinfo, BRCMF_USB_NRXQ, BRCMF_USB_NTXQ); @@ -1280,13 +1321,16 @@ static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo) bus->proto_type = BRCMF_PROTO_BCDC; bus->always_use_fws_queue = true; - ret = brcmf_usb_bus_setup(devinfo); - if (ret) { - brcmf_err("dongle is not responding\n"); - goto fail; + if (!brcmf_usb_dlneeded(devinfo)) { + ret = brcmf_usb_bus_setup(devinfo); + if (ret) + goto fail; } - + /* request firmware here */ + brcmf_fw_get_firmwares(dev, 0, brcmf_usb_get_fwname(devinfo), NULL, + brcmf_usb_probe_phase2); return 0; + fail: /* Release resources in reverse order */ kfree(bus); @@ -1409,12 +1453,8 @@ brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) } /* Allocate interrupt URB and data buffer */ - /* RNDIS says 8-byte intr, our old drivers used 4-byte */ - if (IFEPDESC(usb, CONTROL_IF, 0).wMaxPacketSize == cpu_to_le16(16)) - devinfo->intr_size = 8; - else - devinfo->intr_size = 4; - + devinfo->intr_size = + le16_to_cpu(IFEPDESC(usb, CONTROL_IF, 0).wMaxPacketSize); devinfo->interval = IFEPDESC(usb, CONTROL_IF, 0).bInterval; if (usb->speed == USB_SPEED_SUPER) @@ -1481,13 +1521,11 @@ 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); - brcmf_dbg(USB, "Enter\n"); - if (!brcmf_usb_fw_download(devinfo)) - return brcmf_usb_bus_setup(devinfo); - - return -EIO; + return brcmf_fw_get_firmwares(&usb->dev, 0, + brcmf_usb_get_fwname(devinfo), NULL, + brcmf_usb_probe_phase2); } #define BRCMF_USB_VENDOR_ID_BROADCOM 0x0a5c -- GitLab