From patchwork Wed Sep 23 13:43:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oliver Neukum X-Patchwork-Id: 11795057 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id EB35D112C for ; Wed, 23 Sep 2020 13:44:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C7753221EB for ; Wed, 23 Sep 2020 13:44:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=suse.com header.i=@suse.com header.b="OZslMne+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726636AbgIWNoS (ORCPT ); Wed, 23 Sep 2020 09:44:18 -0400 Received: from mx2.suse.de ([195.135.220.15]:33228 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726559AbgIWNoR (ORCPT ); Wed, 23 Sep 2020 09:44:17 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1600868655; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:in-reply-to:in-reply-to:references:references; bh=zaFxZgwCHaNkcErl7geMWUuzHB8/NPepO7loIcMVOeU=; b=OZslMne+vGrN9lht64ypJ3t/dQK5Tgbw5fo45hmwfZYGm7E3qcA+rvrkF+/AGbIalzLokk bypO2IQpONYqA+DN5My7mAOKZsnNEh00R/uGCxkxWwoNvs7fYvKkbyfwVobCahtABNOMdD Njd+lXZTCYhV+ZBLldxLDZdER+g+yGQ= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 368B0AD2C; Wed, 23 Sep 2020 13:44:53 +0000 (UTC) From: Oliver Neukum To: himadrispandya@gmail.com, gregKH@linuxfoundation.org, stern@rowland.harvard.edu, linux-usb@vger.kernel.org Cc: Oliver Neukum Subject: [RFC 02/14] Revert "Bluetooth: ath3k: use usb_control_msg_send() and usb_control_msg_recv()" Date: Wed, 23 Sep 2020 15:43:36 +0200 Message-Id: <20200923134348.23862-3-oneukum@suse.com> X-Mailer: git-send-email 2.16.4 In-Reply-To: <20200923134348.23862-1-oneukum@suse.com> References: <20200923134348.23862-1-oneukum@suse.com> Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org This reverts commit e9b20f0fe17ab06c3b55153046209987749daa48. The API has to be changed Signed-off-by: Oliver Neukum --- drivers/bluetooth/ath3k.c | 90 +++++++++++++++++++++++++++++++++-------------- 1 file changed, 64 insertions(+), 26 deletions(-) diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index 1472cccfd0b3..4ce270513695 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -212,16 +212,19 @@ static int ath3k_load_firmware(struct usb_device *udev, BT_DBG("udev %p", udev); + pipe = usb_sndctrlpipe(udev, 0); + send_buf = kmalloc(BULK_SIZE, GFP_KERNEL); if (!send_buf) { BT_ERR("Can't allocate memory chunk for firmware"); return -ENOMEM; } - err = usb_control_msg_send(udev, 0, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR, - 0, 0, firmware->data, FW_HDR_SIZE, - USB_CTRL_SET_TIMEOUT); - if (err) { + memcpy(send_buf, firmware->data, FW_HDR_SIZE); + err = usb_control_msg(udev, pipe, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR, + 0, 0, send_buf, FW_HDR_SIZE, + USB_CTRL_SET_TIMEOUT); + if (err < 0) { BT_ERR("Can't change to loading configuration err"); goto error; } @@ -256,17 +259,44 @@ static int ath3k_load_firmware(struct usb_device *udev, static int ath3k_get_state(struct usb_device *udev, unsigned char *state) { - return usb_control_msg_recv(udev, 0, ATH3K_GETSTATE, - USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, - state, 1, USB_CTRL_SET_TIMEOUT); + int ret, pipe = 0; + char *buf; + + buf = kmalloc(sizeof(*buf), GFP_KERNEL); + if (!buf) + return -ENOMEM; + + pipe = usb_rcvctrlpipe(udev, 0); + ret = usb_control_msg(udev, pipe, ATH3K_GETSTATE, + USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, + buf, sizeof(*buf), USB_CTRL_SET_TIMEOUT); + + *state = *buf; + kfree(buf); + + return ret; } static int ath3k_get_version(struct usb_device *udev, struct ath3k_version *version) { - return usb_control_msg_recv(udev, 0, ATH3K_GETVERSION, - USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, - version, sizeof(*version), USB_CTRL_SET_TIMEOUT); + int ret, pipe = 0; + struct ath3k_version *buf; + const int size = sizeof(*buf); + + buf = kmalloc(size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + pipe = usb_rcvctrlpipe(udev, 0); + ret = usb_control_msg(udev, pipe, ATH3K_GETVERSION, + USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, + buf, size, USB_CTRL_SET_TIMEOUT); + + memcpy(version, buf, size); + kfree(buf); + + return ret; } static int ath3k_load_fwfile(struct usb_device *udev, @@ -286,10 +316,13 @@ static int ath3k_load_fwfile(struct usb_device *udev, } size = min_t(uint, count, FW_HDR_SIZE); + memcpy(send_buf, firmware->data, size); - ret = usb_control_msg_send(udev, 0, ATH3K_DNLOAD, USB_TYPE_VENDOR, 0, 0, - firmware->data, size, USB_CTRL_SET_TIMEOUT); - if (ret) { + pipe = usb_sndctrlpipe(udev, 0); + ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD, + USB_TYPE_VENDOR, 0, 0, send_buf, + size, USB_CTRL_SET_TIMEOUT); + if (ret < 0) { BT_ERR("Can't change to loading configuration err"); kfree(send_buf); return ret; @@ -322,19 +355,23 @@ static int ath3k_load_fwfile(struct usb_device *udev, return 0; } -static void ath3k_switch_pid(struct usb_device *udev) +static int ath3k_switch_pid(struct usb_device *udev) { - usb_control_msg_send(udev, 0, USB_REG_SWITCH_VID_PID, USB_TYPE_VENDOR, - 0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT); + int pipe = 0; + + pipe = usb_sndctrlpipe(udev, 0); + return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID, + USB_TYPE_VENDOR, 0, 0, + NULL, 0, USB_CTRL_SET_TIMEOUT); } static int ath3k_set_normal_mode(struct usb_device *udev) { unsigned char fw_state; - int ret; + int pipe = 0, ret; ret = ath3k_get_state(udev, &fw_state); - if (ret) { + if (ret < 0) { BT_ERR("Can't get state to change to normal mode err"); return ret; } @@ -344,9 +381,10 @@ static int ath3k_set_normal_mode(struct usb_device *udev) return 0; } - return usb_control_msg_send(udev, 0, ATH3K_SET_NORMAL_MODE, - USB_TYPE_VENDOR, 0, 0, NULL, 0, - USB_CTRL_SET_TIMEOUT); + pipe = usb_sndctrlpipe(udev, 0); + return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE, + USB_TYPE_VENDOR, 0, 0, + NULL, 0, USB_CTRL_SET_TIMEOUT); } static int ath3k_load_patch(struct usb_device *udev) @@ -359,7 +397,7 @@ static int ath3k_load_patch(struct usb_device *udev) int ret; ret = ath3k_get_state(udev, &fw_state); - if (ret) { + if (ret < 0) { BT_ERR("Can't get state to change to load ram patch err"); return ret; } @@ -370,7 +408,7 @@ static int ath3k_load_patch(struct usb_device *udev) } ret = ath3k_get_version(udev, &fw_version); - if (ret) { + if (ret < 0) { BT_ERR("Can't get version to change to load ram patch err"); return ret; } @@ -411,13 +449,13 @@ static int ath3k_load_syscfg(struct usb_device *udev) int clk_value, ret; ret = ath3k_get_state(udev, &fw_state); - if (ret) { + if (ret < 0) { BT_ERR("Can't get state to change to load configuration err"); return -EBUSY; } ret = ath3k_get_version(udev, &fw_version); - if (ret) { + if (ret < 0) { BT_ERR("Can't get version to change to load ram patch err"); return ret; } @@ -491,7 +529,7 @@ static int ath3k_probe(struct usb_interface *intf, return ret; } ret = ath3k_set_normal_mode(udev); - if (ret) { + if (ret < 0) { BT_ERR("Set normal mode failed"); return ret; }