From patchwork Wed Sep 19 20:21:10 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arend van Spriel X-Patchwork-Id: 1480451 Return-Path: X-Original-To: patchwork-linux-wireless@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 57A2FDF280 for ; Wed, 19 Sep 2012 20:22:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751766Ab2ISUWA (ORCPT ); Wed, 19 Sep 2012 16:22:00 -0400 Received: from mms2.broadcom.com ([216.31.210.18]:3070 "EHLO mms2.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751668Ab2ISUVi (ORCPT ); Wed, 19 Sep 2012 16:21:38 -0400 Received: from [10.9.200.133] by mms2.broadcom.com with ESMTP (Broadcom SMTP Relay (Email Firewall v6.5)); Wed, 19 Sep 2012 13:20:08 -0700 X-Server-Uuid: 4500596E-606A-40F9-852D-14843D8201B2 Received: from mail-irva-13.broadcom.com (10.11.16.103) by IRVEXCHHUB02.corp.ad.broadcom.com (10.9.200.133) with Microsoft SMTP Server id 8.2.247.2; Wed, 19 Sep 2012 13:20:54 -0700 Received: from mail-sj1-12.sj.broadcom.com (mail-sj1-12.sj.broadcom.com [10.17.16.106]) by mail-irva-13.broadcom.com (Postfix) with ESMTP id AA4839FA02; Wed, 19 Sep 2012 13:21:26 -0700 (PDT) Received: from arend-vb-pepper (unknown [10.176.252.240]) by mail-sj1-12.sj.broadcom.com (Postfix) with ESMTP id 557F7207D5; Wed, 19 Sep 2012 13:21:23 -0700 (PDT) Received: from arend by arend-vb-pepper with local (Exim 4.76) ( envelope-from ) id 1TEQlu-00050M-GD; Wed, 19 Sep 2012 22:21:22 +0200 From: "Arend van Spriel" To: "John W. Linville" cc: "Linux Wireless List" , "Hante Meuleman" , "Arend van Spriel" Subject: [PATCH 05/13] brcmfmac: store usb fw images in local linked list. Date: Wed, 19 Sep 2012 22:21:10 +0200 Message-ID: <1348086078-19183-6-git-send-email-arend@broadcom.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1348086078-19183-1-git-send-email-arend@broadcom.com> References: <1348086078-19183-1-git-send-email-arend@broadcom.com> MIME-Version: 1.0 X-WSS-ID: 7C44F7723P84565026-04-01 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org From: Hante Meuleman For suspend/resume it is necessary to store firmware in memory. In order to support multiple usb dongles at the same time a linked list of firmwares was created. Reviewed-by: Arend Van Spriel Reviewed-by: Pieter-Paul Giesberts Signed-off-by: Hante Meuleman Signed-off-by: Arend van Spriel --- drivers/net/wireless/brcm80211/brcmfmac/usb.c | 64 ++++++++++++++++--------- 1 file changed, 41 insertions(+), 23 deletions(-) diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c index 03f59cd..edb4311 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c @@ -81,10 +81,12 @@ enum usbdev_suspend_state { }; struct brcmf_usb_image { - void *data; - u32 len; + struct list_head list; + s8 *fwname; + u8 *image; + int image_len; }; -static struct brcmf_usb_image g_image = { NULL, 0 }; +static struct list_head fw_image_list; struct intr_transfer_buf { u32 notification; @@ -1152,10 +1154,6 @@ static void brcmf_usb_detach(struct brcmf_usbdev_info *devinfo) { brcmf_dbg(TRACE, "devinfo %p\n", devinfo); - /* store the image globally */ - g_image.data = devinfo->image; - g_image.len = devinfo->image_len; - /* free the URBS */ brcmf_usb_free_q(&devinfo->rx_freeq, false); brcmf_usb_free_q(&devinfo->tx_freeq, false); @@ -1207,17 +1205,9 @@ static int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo) { s8 *fwname; const struct firmware *fw; + struct brcmf_usb_image *fw_image; int err; - devinfo->image = g_image.data; - devinfo->image_len = g_image.len; - - /* - * if we have an image we can leave here. - */ - if (devinfo->image) - return 0; - switch (devinfo->bus_pub.devid) { case 43143: fwname = BRCMF_USB_43143_FW_NAME; @@ -1235,6 +1225,14 @@ static int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo) break; } + list_for_each_entry(fw_image, &fw_image_list, list) { + if (fw_image->fwname == fwname) { + devinfo->image = fw_image->image; + devinfo->image_len = fw_image->image_len; + return 0; + } + } + /* fw image not yet loaded. Load it now and add to list */ err = request_firmware(&fw, fwname, devinfo->dev); if (!fw) { brcmf_dbg(ERROR, "fail to request firmware %s\n", fwname); @@ -1245,14 +1243,24 @@ static int brcmf_usb_get_fw(struct brcmf_usbdev_info *devinfo) return -EINVAL; } - devinfo->image = vmalloc(fw->size); /* plus nvram */ - if (!devinfo->image) + fw_image = kzalloc(sizeof(*fw_image), GFP_ATOMIC); + if (!fw_image) + return -ENOMEM; + INIT_LIST_HEAD(&fw_image->list); + list_add_tail(&fw_image->list, &fw_image_list); + fw_image->fwname = fwname; + fw_image->image = vmalloc(fw->size); + if (!fw_image->image) return -ENOMEM; - memcpy(devinfo->image, fw->data, fw->size); - devinfo->image_len = fw->size; + memcpy(fw_image->image, fw->data, fw->size); + fw_image->image_len = fw->size; release_firmware(fw); + + devinfo->image = fw_image->image; + devinfo->image_len = fw_image->image_len; + return 0; } @@ -1594,15 +1602,25 @@ static struct usb_driver brcmf_usbdrvr = { .disable_hub_initiated_lpm = 1, }; +static void brcmf_release_fw(struct list_head *q) +{ + struct brcmf_usb_image *fw_image, *next; + + list_for_each_entry_safe(fw_image, next, q, list) { + vfree(fw_image->image); + list_del_init(&fw_image->list); + } +} + + void brcmf_usb_exit(void) { usb_deregister(&brcmf_usbdrvr); - vfree(g_image.data); - g_image.data = NULL; - g_image.len = 0; + brcmf_release_fw(&fw_image_list); } void brcmf_usb_init(void) { + INIT_LIST_HEAD(&fw_image_list); usb_register(&brcmf_usbdrvr); }