From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from ug-out-1314.google.com ([66.249.92.170]:17023 "EHLO ug-out-1314.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754252AbXJFMDw (ORCPT ); Sat, 6 Oct 2007 08:03:52 -0400 Received: by ug-out-1314.google.com with SMTP id z38so605537ugc for ; Sat, 06 Oct 2007 05:03:51 -0700 (PDT) To: "John W. Linville" Subject: [PATCH 01/16] rt2x00: Remove duplicate code in MAC & BSSID handling Date: Sat, 6 Oct 2007 14:11:46 +0200 Cc: linux-wireless@vger.kernel.org, rt2400-devel@lists.sourceforge.net References: <200710061410.31765.IvDoorn@gmail.com> In-Reply-To: <200710061410.31765.IvDoorn@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Message-Id: <200710061411.46547.IvDoorn@gmail.com> (sfid-20071006_130400_576796_401BACA0) From: Ivo van Doorn Sender: linux-wireless-owner@vger.kernel.org List-ID: The various drivers contained duplicate code to handle the MAC and BSSID initialization correctly. This moves the address copy to little endian variables to rt2x00config. Signed-off-by: Ivo van Doorn --- drivers/net/wireless/rt2x00/rt2400pci.c | 30 ++++++------------------ drivers/net/wireless/rt2x00/rt2500pci.c | 30 ++++++------------------ drivers/net/wireless/rt2x00/rt2500usb.c | 30 ++++++------------------ drivers/net/wireless/rt2x00/rt2x00.h | 4 +- drivers/net/wireless/rt2x00/rt2x00config.c | 32 ++++++++++++++++++++++++- drivers/net/wireless/rt2x00/rt61pci.c | 34 ++++++++------------------- drivers/net/wireless/rt2x00/rt73usb.c | 34 ++++++++------------------- 7 files changed, 76 insertions(+), 118 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c index 4f28662..84f807d 100644 --- a/drivers/net/wireless/rt2x00/rt2400pci.c +++ b/drivers/net/wireless/rt2x00/rt2400pci.c @@ -249,32 +249,18 @@ static int rt2400pci_rfkill_poll(struct rt2x00_dev *rt2x00dev) /* * Configuration handlers. */ -static void rt2400pci_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr) +static void rt2400pci_config_mac_addr(struct rt2x00_dev *rt2x00dev, + __le32 *mac) { - __le32 reg[2]; - - memset(®, 0, sizeof(reg)); - memcpy(®, addr, ETH_ALEN); - - /* - * The MAC address is passed to us as an array of bytes, - * that array is little endian, so no need for byte ordering. - */ - rt2x00pci_register_multiwrite(rt2x00dev, CSR3, ®, sizeof(reg)); + rt2x00pci_register_multiwrite(rt2x00dev, CSR3, mac, + (2 * sizeof(__le32))); } -static void rt2400pci_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid) +static void rt2400pci_config_bssid(struct rt2x00_dev *rt2x00dev, + __le32 *bssid) { - __le32 reg[2]; - - memset(®, 0, sizeof(reg)); - memcpy(®, bssid, ETH_ALEN); - - /* - * The BSSID is passed to us as an array of bytes, - * that array is little endian, so no need for byte ordering. - */ - rt2x00pci_register_multiwrite(rt2x00dev, CSR5, ®, sizeof(reg)); + rt2x00pci_register_multiwrite(rt2x00dev, CSR5, bssid, + (2 * sizeof(__le32))); } static void rt2400pci_config_type(struct rt2x00_dev *rt2x00dev, int type) diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c index c0cd60a..87a0988 100644 --- a/drivers/net/wireless/rt2x00/rt2500pci.c +++ b/drivers/net/wireless/rt2x00/rt2500pci.c @@ -249,32 +249,18 @@ static int rt2500pci_rfkill_poll(struct rt2x00_dev *rt2x00dev) /* * Configuration handlers. */ -static void rt2500pci_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr) +static void rt2500pci_config_mac_addr(struct rt2x00_dev *rt2x00dev, + __le32 *mac) { - __le32 reg[2]; - - memset(®, 0, sizeof(reg)); - memcpy(®, addr, ETH_ALEN); - - /* - * The MAC address is passed to us as an array of bytes, - * that array is little endian, so no need for byte ordering. - */ - rt2x00pci_register_multiwrite(rt2x00dev, CSR3, ®, sizeof(reg)); + rt2x00pci_register_multiwrite(rt2x00dev, CSR3, mac, + (2 * sizeof(__le32))); } -static void rt2500pci_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid) +static void rt2500pci_config_bssid(struct rt2x00_dev *rt2x00dev, + __le32 *bssid) { - __le32 reg[2]; - - memset(®, 0, sizeof(reg)); - memcpy(®, bssid, ETH_ALEN); - - /* - * The BSSID is passed to us as an array of bytes, - * that array is little endian, so no need for byte ordering. - */ - rt2x00pci_register_multiwrite(rt2x00dev, CSR5, ®, sizeof(reg)); + rt2x00pci_register_multiwrite(rt2x00dev, CSR5, bssid, + (2 * sizeof(__le32))); } static void rt2500pci_config_type(struct rt2x00_dev *rt2x00dev, const int type) diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c index e082961..e24ffe6 100644 --- a/drivers/net/wireless/rt2x00/rt2500usb.c +++ b/drivers/net/wireless/rt2x00/rt2500usb.c @@ -254,32 +254,18 @@ static const struct rt2x00debug rt2500usb_rt2x00debug = { /* * Configuration handlers. */ -static void rt2500usb_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr) +static void rt2500usb_config_mac_addr(struct rt2x00_dev *rt2x00dev, + __le32 *mac) { - __le16 reg[3]; - - memset(®, 0, sizeof(reg)); - memcpy(®, addr, ETH_ALEN); - - /* - * The MAC address is passed to us as an array of bytes, - * that array is little endian, so no need for byte ordering. - */ - rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, ®, sizeof(reg)); + rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR2, &mac, + (3 * sizeof(__le16))); } -static void rt2500usb_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid) +static void rt2500usb_config_bssid(struct rt2x00_dev *rt2x00dev, + __le32 *bssid) { - __le16 reg[3]; - - memset(®, 0, sizeof(reg)); - memcpy(®, bssid, ETH_ALEN); - - /* - * The BSSID is passed to us as an array of bytes, - * that array is little endian, so no need for byte ordering. - */ - rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, ®, sizeof(reg)); + rt2500usb_register_multiwrite(rt2x00dev, MAC_CSR5, bssid, + (3 * sizeof(__le16))); } static void rt2500usb_config_type(struct rt2x00_dev *rt2x00dev, const int type) diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h index 6262d4e..5d30ca6 100644 --- a/drivers/net/wireless/rt2x00/rt2x00.h +++ b/drivers/net/wireless/rt2x00/rt2x00.h @@ -408,8 +408,8 @@ struct rt2x00lib_ops { /* * Configuration handlers. */ - void (*config_mac_addr) (struct rt2x00_dev *rt2x00dev, u8 *mac); - void (*config_bssid) (struct rt2x00_dev *rt2x00dev, u8 *bssid); + void (*config_mac_addr) (struct rt2x00_dev *rt2x00dev, __le32 *mac); + void (*config_bssid) (struct rt2x00_dev *rt2x00dev, __le32 *bssid); void (*config_packet_filter) (struct rt2x00_dev *rt2x00dev, const unsigned int filter); void (*config_type) (struct rt2x00_dev *rt2x00dev, const int type); diff --git a/drivers/net/wireless/rt2x00/rt2x00config.c b/drivers/net/wireless/rt2x00/rt2x00config.c index 13b5106..aeeaa0c 100644 --- a/drivers/net/wireless/rt2x00/rt2x00config.c +++ b/drivers/net/wireless/rt2x00/rt2x00config.c @@ -34,16 +34,44 @@ #include "rt2x00.h" #include "rt2x00lib.h" + +/* + * The MAC and BSSID addressess are simple array of bytes, + * these arrays are little endian, so when sending the addressess + * to the drivers, copy the it into a endian-signed variable. + * + * Note that all devices (except rt2500usb) have 32 bits + * register word sizes. This means that whatever variable we + * pass _must_ be a multiple of 32 bits. Otherwise the device + * might not accept what we are sending to it. + * This will also make it easier for the driver to write + * the data to the device. + * + * Also note that when NULL is passed as address the + * we will send 00:00:00:00:00 to the device to clear the address. + * This will prevent the device being confused when it wants + * to ACK frames or consideres itself associated. + */ void rt2x00lib_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *mac) { + __le32 reg[2]; + + memset(®, 0, sizeof(reg)); if (mac) - rt2x00dev->ops->lib->config_mac_addr(rt2x00dev, mac); + memcpy(®, mac, ETH_ALEN); + + rt2x00dev->ops->lib->config_mac_addr(rt2x00dev, ®[0]); } void rt2x00lib_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid) { + __le32 reg[2]; + + memset(®, 0, sizeof(reg)); if (bssid) - rt2x00dev->ops->lib->config_bssid(rt2x00dev, bssid); + memcpy(®, bssid, ETH_ALEN); + + rt2x00dev->ops->lib->config_bssid(rt2x00dev, ®[0]); } void rt2x00lib_config_type(struct rt2x00_dev *rt2x00dev, int type) diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c index 960af18..2157764 100644 --- a/drivers/net/wireless/rt2x00/rt61pci.c +++ b/drivers/net/wireless/rt2x00/rt61pci.c @@ -274,42 +274,28 @@ static int rt61pci_rfkill_poll(struct rt2x00_dev *rt2x00dev) /* * Configuration handlers. */ -static void rt61pci_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr) +static void rt61pci_config_mac_addr(struct rt2x00_dev *rt2x00dev, __le32 *mac) { - __le32 reg[2]; u32 tmp; - memset(®, 0, sizeof(reg)); - memcpy(®, addr, ETH_ALEN); - - tmp = le32_to_cpu(reg[1]); + tmp = le32_to_cpu(mac[1]); rt2x00_set_field32(&tmp, MAC_CSR3_UNICAST_TO_ME_MASK, 0xff); - reg[1] = cpu_to_le32(tmp); + mac[1] = cpu_to_le32(tmp); - /* - * The MAC address is passed to us as an array of bytes, - * that array is little endian, so no need for byte ordering. - */ - rt2x00pci_register_multiwrite(rt2x00dev, MAC_CSR2, ®, sizeof(reg)); + rt2x00pci_register_multiwrite(rt2x00dev, MAC_CSR2, mac, + (2 * sizeof(__le32))); } -static void rt61pci_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid) +static void rt61pci_config_bssid(struct rt2x00_dev *rt2x00dev, __le32 *bssid) { - __le32 reg[2]; u32 tmp; - memset(®, 0, sizeof(reg)); - memcpy(®, bssid, ETH_ALEN); - - tmp = le32_to_cpu(reg[1]); + tmp = le32_to_cpu(bssid[1]); rt2x00_set_field32(&tmp, MAC_CSR5_BSS_ID_MASK, 3); - reg[1] = cpu_to_le32(tmp); + bssid[1] = cpu_to_le32(tmp); - /* - * The BSSID is passed to us as an array of bytes, - * that array is little endian, so no need for byte ordering. - */ - rt2x00pci_register_multiwrite(rt2x00dev, MAC_CSR4, ®, sizeof(reg)); + rt2x00pci_register_multiwrite(rt2x00dev, MAC_CSR4, bssid, + (2 * sizeof(__le32))); } static void rt61pci_config_type(struct rt2x00_dev *rt2x00dev, const int type) diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c index 7640136..b81ba3d 100644 --- a/drivers/net/wireless/rt2x00/rt73usb.c +++ b/drivers/net/wireless/rt2x00/rt73usb.c @@ -255,42 +255,28 @@ static const struct rt2x00debug rt73usb_rt2x00debug = { /* * Configuration handlers. */ -static void rt73usb_config_mac_addr(struct rt2x00_dev *rt2x00dev, u8 *addr) +static void rt73usb_config_mac_addr(struct rt2x00_dev *rt2x00dev, __le32 *mac) { - __le32 reg[2]; u32 tmp; - memset(®, 0, sizeof(reg)); - memcpy(®, addr, ETH_ALEN); - - tmp = le32_to_cpu(reg[1]); + tmp = le32_to_cpu(mac[1]); rt2x00_set_field32(&tmp, MAC_CSR3_UNICAST_TO_ME_MASK, 0xff); - reg[1] = cpu_to_le32(tmp); + mac[1] = cpu_to_le32(tmp); - /* - * The MAC address is passed to us as an array of bytes, - * that array is little endian, so no need for byte ordering. - */ - rt73usb_register_multiwrite(rt2x00dev, MAC_CSR2, ®, sizeof(reg)); + rt73usb_register_multiwrite(rt2x00dev, MAC_CSR2, mac, + (2 * sizeof(__le32))); } -static void rt73usb_config_bssid(struct rt2x00_dev *rt2x00dev, u8 *bssid) +static void rt73usb_config_bssid(struct rt2x00_dev *rt2x00dev, __le32 *bssid) { - __le32 reg[2]; u32 tmp; - memset(®, 0, sizeof(reg)); - memcpy(®, bssid, ETH_ALEN); - - tmp = le32_to_cpu(reg[1]); + tmp = le32_to_cpu(bssid[1]); rt2x00_set_field32(&tmp, MAC_CSR5_BSS_ID_MASK, 3); - reg[1] = cpu_to_le32(tmp); + bssid[1] = cpu_to_le32(tmp); - /* - * The BSSID is passed to us as an array of bytes, - * that array is little endian, so no need for byte ordering. - */ - rt73usb_register_multiwrite(rt2x00dev, MAC_CSR4, ®, sizeof(reg)); + rt73usb_register_multiwrite(rt2x00dev, MAC_CSR4, bssid, + (2 * sizeof(__le32))); } static void rt73usb_config_type(struct rt2x00_dev *rt2x00dev, const int type) -- 1.5.3.4