brcmfmac: refactor firmware interface layer.
Refactor the functions that are related to getting and setting data to and and from the firmware. Reviewed-by: Arend Van Spriel <arend@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Hante Meuleman <meuleman@broadcom.com> Signed-off-by: Franky Lin <frankyl@broadcom.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Hante Meuleman
John W. Linville
Родитель
6c4a5f2413
Коммит
81f5dcb808
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@ -24,6 +24,7 @@ ccflags-y += -D__CHECK_ENDIAN__
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obj-$(CONFIG_BRCMFMAC) += brcmfmac.o
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brcmfmac-objs += \
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wl_cfg80211.o \
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fwil.o \
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dhd_cdc.o \
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dhd_common.o \
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dhd_linux.o
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@ -318,6 +318,12 @@ struct brcmf_event {
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#define BRCMF_E_LINK_ASSOC_REC 3
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#define BRCMF_E_LINK_BSSCFG_DIS 4
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/* Small, medium and maximum buffer size for dcmd
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*/
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#define BRCMF_DCMD_SMLEN 256
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#define BRCMF_DCMD_MEDLEN 1536
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#define BRCMF_DCMD_MAXLEN 8192
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/* Pattern matching filter. Specifies an offset within received packets to
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* start matching, the pattern to match, the size of the pattern, and a bitmask
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* that indicates which bits within the pattern should be matched.
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@ -661,6 +667,7 @@ struct brcmf_pub {
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struct brcmf_if *iflist[BRCMF_MAX_IFS];
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struct mutex proto_block;
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unsigned char proto_buf[BRCMF_DCMD_MAXLEN];
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struct work_struct setmacaddr_work;
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struct work_struct multicast_work;
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@ -671,6 +678,22 @@ struct brcmf_pub {
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#endif
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};
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/* struct brcmf_if - Interface control information
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*
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* @drvr: back pointer to brcmf_pub
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* @ndev: interface net device pointer
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* @stats: net device statistics
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* @idx: iface idx in dongle
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* @mac_addr: assigned MAC address
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*/
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struct brcmf_if {
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struct brcmf_pub *drvr;
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struct net_device *ndev;
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struct net_device_stats stats;
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int idx;
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u8 mac_addr[ETH_ALEN];
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};
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struct brcmf_if_event {
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u8 ifidx;
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u8 action;
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@ -701,6 +724,8 @@ extern char *brcmf_ifname(struct brcmf_pub *drvr, int idx);
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/* Query dongle */
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extern int brcmf_proto_cdc_query_dcmd(struct brcmf_pub *drvr, int ifidx,
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uint cmd, void *buf, uint len);
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extern int brcmf_proto_cdc_set_dcmd(struct brcmf_pub *drvr, int ifidx, uint cmd,
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void *buf, uint len);
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extern int brcmf_ifname2idx(struct brcmf_pub *drvr, char *name);
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extern int brcmf_c_host_event(struct brcmf_pub *drvr, int *idx,
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@ -713,8 +738,4 @@ extern void brcmf_c_pktfilter_offload_set(struct brcmf_pub *drvr, char *arg);
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extern void brcmf_c_pktfilter_offload_enable(struct brcmf_pub *drvr, char *arg,
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int enable, int master_mode);
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#define BRCMF_DCMD_SMLEN 256 /* "small" cmd buffer required */
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#define BRCMF_DCMD_MEDLEN 1536 /* "med" cmd buffer required */
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#define BRCMF_DCMD_MAXLEN 8192 /* max length cmd buffer required */
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#endif /* _BRCMF_H_ */
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@ -18,6 +18,7 @@
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#include <linux/if.h>
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#include <linux/ieee80211.h>
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#include <linux/module.h>
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#include <linux/netdevice.h>
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#include <defs.h>
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#include <brcmu_wifi.h>
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@ -31,6 +31,7 @@
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#define BRCMF_EVENT_VAL 0x0800
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#define BRCMF_BTA_VAL 0x1000
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#define BRCMF_ISCAN_VAL 0x2000
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#define BRCMF_FIL_VAL 0x4000
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#if defined(DEBUG)
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@ -56,6 +57,7 @@ do { \
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#define BRCMF_BYTES_ON() (brcmf_msg_level & BRCMF_BYTES_VAL)
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#define BRCMF_GLOM_ON() (brcmf_msg_level & BRCMF_GLOM_VAL)
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#define BRCMF_EVENT_ON() (brcmf_msg_level & BRCMF_EVENT_VAL)
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#define BRCMF_FIL_ON() (brcmf_msg_level & BRCMF_FIL_VAL)
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#else /* (defined DEBUG) || (defined DEBUG) */
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@ -67,6 +69,7 @@ do { \
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#define BRCMF_BYTES_ON() 0
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#define BRCMF_GLOM_ON() 0
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#define BRCMF_EVENT_ON() 0
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#define BRCMF_FIL_ON() 0
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#endif /* defined(DEBUG) */
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@ -52,16 +52,6 @@ MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN fullmac cards");
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MODULE_LICENSE("Dual BSD/GPL");
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/* Interface control information */
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struct brcmf_if {
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struct brcmf_pub *drvr; /* back pointer to brcmf_pub */
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/* OS/stack specifics */
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struct net_device *ndev;
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struct net_device_stats stats;
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int idx; /* iface idx in dongle */
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u8 mac_addr[ETH_ALEN]; /* assigned MAC address */
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};
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/* Error bits */
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int brcmf_msg_level = BRCMF_ERROR_VAL;
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module_param(brcmf_msg_level, int, 0);
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@ -0,0 +1,345 @@
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/*
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* Copyright (c) 2012 Broadcom Corporation
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/* FWIL is the Firmware Interface Layer. In this module the support functions
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* are located to set and get variables to and from the firmware.
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*/
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#include <linux/kernel.h>
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#include <linux/netdevice.h>
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#include <defs.h>
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#include <brcmu_utils.h>
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#include <brcmu_wifi.h>
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#include "dhd.h"
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#include "dhd_bus.h"
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#include "dhd_dbg.h"
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static s32
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brcmf_fil_cmd_data(struct brcmf_if *ifp, u32 cmd, void *data, u32 len, bool set)
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{
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struct brcmf_pub *drvr = ifp->drvr;
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s32 err;
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if (drvr->bus_if->state == BRCMF_BUS_DOWN) {
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brcmf_dbg(ERROR, "bus is down. we have nothing to do.\n");
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return -EIO;
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}
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if (data != NULL)
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len = min_t(uint, len, BRCMF_DCMD_MAXLEN);
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if (set)
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err = brcmf_proto_cdc_set_dcmd(drvr, ifp->idx, cmd, data, len);
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else
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err = brcmf_proto_cdc_query_dcmd(drvr, ifp->idx, cmd, data,
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len);
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if (err >= 0)
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err = 0;
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else
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brcmf_dbg(ERROR, "Failed err=%d\n", err);
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return err;
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}
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s32
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brcmf_fil_cmd_data_set(struct net_device *ndev, u32 cmd, void *data, u32 len)
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{
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struct brcmf_if *ifp = netdev_priv(ndev);
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s32 err;
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mutex_lock(&ifp->drvr->proto_block);
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brcmf_dbg(FIL, "cmd=%d, len=%d\n", cmd, len);
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brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, len, "data");
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err = brcmf_fil_cmd_data(ifp, cmd, data, len, true);
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mutex_unlock(&ifp->drvr->proto_block);
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return err;
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}
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s32
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brcmf_fil_cmd_data_get(struct net_device *ndev, u32 cmd, void *data, u32 len)
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{
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struct brcmf_if *ifp = netdev_priv(ndev);
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s32 err;
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mutex_lock(&ifp->drvr->proto_block);
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err = brcmf_fil_cmd_data(ifp, cmd, data, len, false);
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brcmf_dbg(FIL, "cmd=%d, len=%d\n", cmd, len);
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brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, len, "data");
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mutex_unlock(&ifp->drvr->proto_block);
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return err;
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}
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s32
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brcmf_fil_cmd_int_set(struct net_device *ndev, u32 cmd, u32 data)
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{
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struct brcmf_if *ifp = netdev_priv(ndev);
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s32 err;
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__le32 data_le = cpu_to_le32(data);
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mutex_lock(&ifp->drvr->proto_block);
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err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), true);
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mutex_unlock(&ifp->drvr->proto_block);
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return err;
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}
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s32
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brcmf_fil_cmd_int_get(struct net_device *ndev, u32 cmd, u32 *data)
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{
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struct brcmf_if *ifp = netdev_priv(ndev);
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s32 err;
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__le32 data_le = cpu_to_le32(*data);
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mutex_lock(&ifp->drvr->proto_block);
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err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), false);
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mutex_unlock(&ifp->drvr->proto_block);
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*data = le32_to_cpu(data_le);
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return err;
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}
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static u32
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brcmf_create_iovar(char *name, char *data, u32 datalen, char *buf, u32 buflen)
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{
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u32 len;
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len = strlen(name) + 1;
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if ((len + datalen) > buflen)
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return 0;
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memcpy(buf, name, len);
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/* append data onto the end of the name string */
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if (data && datalen)
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memcpy(&buf[len], data, datalen);
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return len + datalen;
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}
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s32
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brcmf_fil_iovar_data_set(struct net_device *ndev, char *name, void *data,
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u32 len)
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{
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struct brcmf_if *ifp = netdev_priv(ndev);
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struct brcmf_pub *drvr = ifp->drvr;
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s32 err;
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u32 buflen;
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mutex_lock(&drvr->proto_block);
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brcmf_dbg(FIL, "name=%s, len=%d\n", name, len);
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brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, len, "data");
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buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf,
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sizeof(drvr->proto_buf));
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if (buflen) {
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err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf,
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buflen, true);
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} else {
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err = -EPERM;
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brcmf_dbg(ERROR, "Creating iovar failed\n");
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}
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mutex_unlock(&drvr->proto_block);
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return err;
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}
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s32
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brcmf_fil_iovar_data_get(struct net_device *ndev, char *name, void *data,
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u32 len)
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{
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struct brcmf_if *ifp = netdev_priv(ndev);
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struct brcmf_pub *drvr = ifp->drvr;
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s32 err;
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u32 buflen;
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mutex_lock(&drvr->proto_block);
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buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf,
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sizeof(drvr->proto_buf));
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if (buflen) {
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err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf,
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buflen, false);
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if (err == 0)
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memcpy(data, drvr->proto_buf, len);
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} else {
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err = -EPERM;
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brcmf_dbg(ERROR, "Creating iovar failed\n");
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}
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brcmf_dbg(FIL, "name=%s, len=%d\n", name, len);
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brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, len, "data");
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mutex_unlock(&drvr->proto_block);
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return err;
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}
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s32
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brcmf_fil_iovar_int_set(struct net_device *ndev, char *name, u32 data)
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{
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__le32 data_le = cpu_to_le32(data);
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return brcmf_fil_iovar_data_set(ndev, name, &data_le, sizeof(data_le));
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}
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s32
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brcmf_fil_iovar_int_get(struct net_device *ndev, char *name, u32 *data)
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{
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__le32 data_le = cpu_to_le32(*data);
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s32 err;
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err = brcmf_fil_iovar_data_get(ndev, name, &data_le, sizeof(data_le));
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if (err == 0)
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*data = le32_to_cpu(data_le);
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return err;
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}
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static u32
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brcmf_create_bsscfg(s32 bssidx, char *name, char *data, u32 datalen, char *buf,
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u32 buflen)
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{
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const s8 *prefix = "bsscfg:";
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s8 *p;
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u32 prefixlen;
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u32 namelen;
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u32 iolen;
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__le32 bssidx_le;
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if (bssidx == 0)
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return brcmf_create_iovar(name, data, datalen, buf, buflen);
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prefixlen = strlen(prefix);
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namelen = strlen(name) + 1; /* lengh of iovar name + null */
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iolen = prefixlen + namelen + sizeof(bssidx_le) + datalen;
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if (buflen < iolen) {
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brcmf_dbg(ERROR, "buffer is too short\n");
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return 0;
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}
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p = buf;
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/* copy prefix, no null */
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memcpy(p, prefix, prefixlen);
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p += prefixlen;
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/* copy iovar name including null */
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memcpy(p, name, namelen);
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p += namelen;
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/* bss config index as first data */
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bssidx_le = cpu_to_le32(bssidx);
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memcpy(p, &bssidx_le, sizeof(bssidx_le));
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p += sizeof(bssidx_le);
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/* parameter buffer follows */
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if (datalen)
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memcpy(p, data, datalen);
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return iolen;
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}
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s32
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brcmf_fil_bsscfg_data_set(struct net_device *ndev, s32 bssidx, char *name,
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void *data, u32 len)
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{
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struct brcmf_if *ifp = netdev_priv(ndev);
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struct brcmf_pub *drvr = ifp->drvr;
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s32 err;
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u32 buflen;
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mutex_lock(&drvr->proto_block);
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brcmf_dbg(FIL, "bssidx=%d, name=%s, len=%d\n", bssidx, name, len);
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brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, len, "data");
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buflen = brcmf_create_bsscfg(bssidx, name, data, len, drvr->proto_buf,
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sizeof(drvr->proto_buf));
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if (buflen) {
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err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf,
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buflen, true);
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} else {
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err = -EPERM;
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brcmf_dbg(ERROR, "Creating bsscfg failed\n");
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}
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mutex_unlock(&drvr->proto_block);
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return err;
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}
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s32
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brcmf_fil_bsscfg_data_get(struct net_device *ndev, s32 bssidx, char *name,
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void *data, u32 len)
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{
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struct brcmf_if *ifp = netdev_priv(ndev);
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struct brcmf_pub *drvr = ifp->drvr;
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s32 err;
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u32 buflen;
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|
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mutex_lock(&drvr->proto_block);
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buflen = brcmf_create_bsscfg(bssidx, name, NULL, len, drvr->proto_buf,
|
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sizeof(drvr->proto_buf));
|
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if (buflen) {
|
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err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf,
|
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buflen, false);
|
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if (err == 0)
|
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memcpy(data, drvr->proto_buf, len);
|
||||
} else {
|
||||
err = -EPERM;
|
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brcmf_dbg(ERROR, "Creating bsscfg failed\n");
|
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}
|
||||
brcmf_dbg(FIL, "bssidx=%d, name=%s, len=%d\n", bssidx, name, len);
|
||||
brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, len, "data");
|
||||
|
||||
mutex_unlock(&drvr->proto_block);
|
||||
return err;
|
||||
|
||||
}
|
||||
|
||||
s32
|
||||
brcmf_fil_bsscfg_int_set(struct net_device *ndev, s32 bssidx, char *name,
|
||||
u32 data)
|
||||
{
|
||||
__le32 data_le = cpu_to_le32(data);
|
||||
|
||||
return brcmf_fil_bsscfg_data_set(ndev, bssidx, name, &data_le,
|
||||
sizeof(data_le));
|
||||
}
|
||||
|
||||
s32
|
||||
brcmf_fil_bsscfg_int_get(struct net_device *ndev, s32 bssidx, char *name,
|
||||
u32 *data)
|
||||
{
|
||||
__le32 data_le = cpu_to_le32(*data);
|
||||
s32 err;
|
||||
|
||||
err = brcmf_fil_bsscfg_data_get(ndev, bssidx, name, &data_le,
|
||||
sizeof(data_le));
|
||||
if (err == 0)
|
||||
*data = le32_to_cpu(data_le);
|
||||
return err;
|
||||
}
|
||||
|
|
@ -0,0 +1,43 @@
|
|||
/*
|
||||
* Copyright (c) 2012 Broadcom Corporation
|
||||
*
|
||||
* Permission to use, copy, modify, and/or distribute this software for any
|
||||
* purpose with or without fee is hereby granted, provided that the above
|
||||
* copyright notice and this permission notice appear in all copies.
|
||||
*
|
||||
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||||
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
||||
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||||
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
||||
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
||||
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||||
*/
|
||||
|
||||
#ifndef _fwil_h_
|
||||
#define _fwil_h_
|
||||
|
||||
s32 brcmf_fil_cmd_data_set(struct net_device *ndev, u32 cmd, void *data,
|
||||
u32 len);
|
||||
s32 brcmf_fil_cmd_data_get(struct net_device *ndev, u32 cmd, void *data,
|
||||
u32 len);
|
||||
s32 brcmf_fil_cmd_int_set(struct net_device *ndev, u32 cmd, u32 data);
|
||||
s32 brcmf_fil_cmd_int_get(struct net_device *ndev, u32 cmd, u32 *data);
|
||||
|
||||
s32 brcmf_fil_iovar_data_set(struct net_device *ndev, char *name, void *data,
|
||||
u32 len);
|
||||
s32 brcmf_fil_iovar_data_get(struct net_device *ndev, char *name, void *data,
|
||||
u32 len);
|
||||
s32 brcmf_fil_iovar_int_set(struct net_device *ndev, char *name, u32 data);
|
||||
s32 brcmf_fil_iovar_int_get(struct net_device *ndev, char *name, u32 *data);
|
||||
|
||||
s32 brcmf_fil_bsscfg_data_set(struct net_device *ndev, s32 bssidx, char *name,
|
||||
void *data, u32 len);
|
||||
s32 brcmf_fil_bsscfg_data_get(struct net_device *ndev, s32 bssidx, char *name,
|
||||
void *data, u32 len);
|
||||
s32 brcmf_fil_bsscfg_int_set(struct net_device *ndev, s32 bssidx, char *name,
|
||||
u32 data);
|
||||
s32 brcmf_fil_bsscfg_int_get(struct net_device *ndev, s32 bssidx, char *name,
|
||||
u32 *data);
|
||||
|
||||
#endif /* _fwil_h_ */
|
||||
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