465 lines
11 KiB
C
Executable File
465 lines
11 KiB
C
Executable File
/*
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* Common function shared by Linux WEXT, cfg80211 and p2p drivers
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*
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* Copyright (C) 1999-2016, Broadcom Corporation
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*
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* Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed to you
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* under the terms of the GNU General Public License version 2 (the "GPL"),
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* available at http://www.broadcom.com/licenses/GPLv2.php, with the
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* following added to such license:
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*
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* As a special exception, the copyright holders of this software give you
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* permission to link this software with independent modules, and to copy and
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* distribute the resulting executable under terms of your choice, provided that
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* you also meet, for each linked independent module, the terms and conditions of
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* the license of that module. An independent module is a module which is not
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* derived from this software. The special exception does not apply to any
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* modifications of the software.
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*
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* Notwithstanding the above, under no circumstances may you combine this
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* software in any way with any other Broadcom software provided under a license
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* other than the GPL, without Broadcom's express prior written consent.
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*
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*
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* <<Broadcom-WL-IPTag/Open:>>
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*
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* $Id: wldev_common.c 585478 2015-09-10 13:33:58Z $
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*/
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#include <osl.h>
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#include <linux/kernel.h>
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#include <linux/kthread.h>
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#include <linux/netdevice.h>
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#include <wldev_common.h>
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#include <bcmutils.h>
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#include <dhd_config.h>
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#define htod32(i) (i)
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#define htod16(i) (i)
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#define dtoh32(i) (i)
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#define dtoh16(i) (i)
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#define htodchanspec(i) (i)
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#define dtohchanspec(i) (i)
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#define WLDEV_ERROR(args) \
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do { \
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printk(KERN_ERR "WLDEV-ERROR) "); \
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printk args; \
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} while (0)
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#define WLDEV_INFO(args) \
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do { \
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printk(KERN_INFO "WLDEV-INFO) "); \
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printk args; \
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} while (0)
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extern int dhd_ioctl_entry_local(struct net_device *net, wl_ioctl_t *ioc, int cmd);
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s32 wldev_ioctl(
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struct net_device *dev, u32 cmd, void *arg, u32 len, u32 set)
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{
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s32 ret = 0;
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struct wl_ioctl ioc;
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memset(&ioc, 0, sizeof(ioc));
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ioc.cmd = cmd;
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ioc.buf = arg;
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ioc.len = len;
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ioc.set = set;
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ret = dhd_ioctl_entry_local(dev, &ioc, cmd);
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return ret;
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}
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/* Format a iovar buffer, not bsscfg indexed. The bsscfg index will be
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* taken care of in dhd_ioctl_entry. Internal use only, not exposed to
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* wl_iw, wl_cfg80211 and wl_cfgp2p
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*/
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static s32 wldev_mkiovar(
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const s8 *iovar_name, s8 *param, s32 paramlen,
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s8 *iovar_buf, u32 buflen)
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{
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s32 iolen = 0;
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iolen = bcm_mkiovar(iovar_name, param, paramlen, iovar_buf, buflen);
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return iolen;
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}
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s32 wldev_iovar_getbuf(
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struct net_device *dev, s8 *iovar_name,
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void *param, s32 paramlen, void *buf, s32 buflen, struct mutex* buf_sync)
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{
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s32 ret = 0;
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if (buf_sync) {
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mutex_lock(buf_sync);
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}
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wldev_mkiovar(iovar_name, param, paramlen, buf, buflen);
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ret = wldev_ioctl(dev, WLC_GET_VAR, buf, buflen, FALSE);
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if (buf_sync)
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mutex_unlock(buf_sync);
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return ret;
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}
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s32 wldev_iovar_setbuf(
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struct net_device *dev, s8 *iovar_name,
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void *param, s32 paramlen, void *buf, s32 buflen, struct mutex* buf_sync)
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{
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s32 ret = 0;
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s32 iovar_len;
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if (buf_sync) {
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mutex_lock(buf_sync);
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}
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iovar_len = wldev_mkiovar(iovar_name, param, paramlen, buf, buflen);
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if (iovar_len > 0)
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ret = wldev_ioctl(dev, WLC_SET_VAR, buf, iovar_len, TRUE);
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else
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ret = BCME_BUFTOOSHORT;
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if (buf_sync)
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mutex_unlock(buf_sync);
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return ret;
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}
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s32 wldev_iovar_setint(
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struct net_device *dev, s8 *iovar, s32 val)
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{
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s8 iovar_buf[WLC_IOCTL_SMLEN];
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val = htod32(val);
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memset(iovar_buf, 0, sizeof(iovar_buf));
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return wldev_iovar_setbuf(dev, iovar, &val, sizeof(val), iovar_buf,
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sizeof(iovar_buf), NULL);
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}
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s32 wldev_iovar_getint(
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struct net_device *dev, s8 *iovar, s32 *pval)
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{
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s8 iovar_buf[WLC_IOCTL_SMLEN];
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s32 err;
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memset(iovar_buf, 0, sizeof(iovar_buf));
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err = wldev_iovar_getbuf(dev, iovar, pval, sizeof(*pval), iovar_buf,
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sizeof(iovar_buf), NULL);
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if (err == 0)
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{
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memcpy(pval, iovar_buf, sizeof(*pval));
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*pval = dtoh32(*pval);
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}
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return err;
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}
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/** Format a bsscfg indexed iovar buffer. The bsscfg index will be
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* taken care of in dhd_ioctl_entry. Internal use only, not exposed to
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* wl_iw, wl_cfg80211 and wl_cfgp2p
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*/
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s32 wldev_mkiovar_bsscfg(
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const s8 *iovar_name, s8 *param, s32 paramlen,
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s8 *iovar_buf, s32 buflen, s32 bssidx)
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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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if (bssidx == 0) {
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return wldev_mkiovar(iovar_name, param, paramlen,
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iovar_buf, buflen);
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}
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prefixlen = (u32) strlen(prefix); /* lengh of bsscfg prefix */
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namelen = (u32) strlen(iovar_name) + 1; /* lengh of iovar name + null */
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iolen = prefixlen + namelen + sizeof(u32) + paramlen;
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if (buflen < 0 || iolen > (u32)buflen)
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{
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WLDEV_ERROR(("%s: buffer is too short\n", __FUNCTION__));
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return BCME_BUFTOOSHORT;
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}
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p = (s8 *)iovar_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, iovar_name, namelen);
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p += namelen;
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/* bss config index as first param */
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bssidx = htod32(bssidx);
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memcpy(p, &bssidx, sizeof(u32));
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p += sizeof(u32);
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/* parameter buffer follows */
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if (paramlen)
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memcpy(p, param, paramlen);
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return iolen;
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}
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s32 wldev_iovar_getbuf_bsscfg(
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struct net_device *dev, s8 *iovar_name,
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void *param, s32 paramlen, void *buf, s32 buflen, s32 bsscfg_idx, struct mutex* buf_sync)
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{
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s32 ret = 0;
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if (buf_sync) {
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mutex_lock(buf_sync);
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}
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wldev_mkiovar_bsscfg(iovar_name, param, paramlen, buf, buflen, bsscfg_idx);
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ret = wldev_ioctl(dev, WLC_GET_VAR, buf, buflen, FALSE);
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if (buf_sync) {
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mutex_unlock(buf_sync);
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}
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return ret;
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}
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s32 wldev_iovar_setbuf_bsscfg(
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struct net_device *dev, s8 *iovar_name,
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void *param, s32 paramlen, void *buf, s32 buflen, s32 bsscfg_idx, struct mutex* buf_sync)
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{
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s32 ret = 0;
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s32 iovar_len;
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if (buf_sync) {
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mutex_lock(buf_sync);
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}
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iovar_len = wldev_mkiovar_bsscfg(iovar_name, param, paramlen, buf, buflen, bsscfg_idx);
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if (iovar_len > 0)
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ret = wldev_ioctl(dev, WLC_SET_VAR, buf, iovar_len, TRUE);
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else {
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ret = BCME_BUFTOOSHORT;
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}
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if (buf_sync) {
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mutex_unlock(buf_sync);
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}
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return ret;
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}
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s32 wldev_iovar_setint_bsscfg(
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struct net_device *dev, s8 *iovar, s32 val, s32 bssidx)
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{
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s8 iovar_buf[WLC_IOCTL_SMLEN];
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val = htod32(val);
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memset(iovar_buf, 0, sizeof(iovar_buf));
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return wldev_iovar_setbuf_bsscfg(dev, iovar, &val, sizeof(val), iovar_buf,
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sizeof(iovar_buf), bssidx, NULL);
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}
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s32 wldev_iovar_getint_bsscfg(
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struct net_device *dev, s8 *iovar, s32 *pval, s32 bssidx)
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{
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s8 iovar_buf[WLC_IOCTL_SMLEN];
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s32 err;
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memset(iovar_buf, 0, sizeof(iovar_buf));
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err = wldev_iovar_getbuf_bsscfg(dev, iovar, pval, sizeof(*pval), iovar_buf,
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sizeof(iovar_buf), bssidx, NULL);
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if (err == 0)
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{
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memcpy(pval, iovar_buf, sizeof(*pval));
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*pval = dtoh32(*pval);
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}
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return err;
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}
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int wldev_get_link_speed(
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struct net_device *dev, int *plink_speed)
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{
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int error;
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if (!plink_speed)
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return -ENOMEM;
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error = wldev_ioctl(dev, WLC_GET_RATE, plink_speed, sizeof(int), 0);
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if (unlikely(error))
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return error;
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/* Convert internal 500Kbps to Kbps */
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*plink_speed *= 500;
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return error;
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}
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int wldev_get_rssi(
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struct net_device *dev, scb_val_t *scb_val)
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{
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int error;
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if (!scb_val)
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return -ENOMEM;
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error = wldev_ioctl(dev, WLC_GET_RSSI, scb_val, sizeof(scb_val_t), 0);
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if (unlikely(error))
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return error;
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return error;
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}
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int wldev_get_ssid(
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struct net_device *dev, wlc_ssid_t *pssid)
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{
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int error;
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if (!pssid)
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return -ENOMEM;
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error = wldev_ioctl(dev, WLC_GET_SSID, pssid, sizeof(wlc_ssid_t), 0);
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if (unlikely(error))
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return error;
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pssid->SSID_len = dtoh32(pssid->SSID_len);
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return error;
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}
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int wldev_get_band(
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struct net_device *dev, uint *pband)
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{
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int error;
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error = wldev_ioctl(dev, WLC_GET_BAND, pband, sizeof(uint), 0);
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return error;
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}
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int wldev_set_band(
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struct net_device *dev, uint band)
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{
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int error = -1;
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if ((band == WLC_BAND_AUTO) || (band == WLC_BAND_5G) || (band == WLC_BAND_2G)) {
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error = wldev_ioctl(dev, WLC_SET_BAND, &band, sizeof(band), true);
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if (!error)
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dhd_bus_band_set(dev, band);
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}
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return error;
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}
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int wldev_get_datarate(struct net_device *dev, int *datarate)
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{
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int error = 0;
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error = wldev_ioctl(dev, WLC_GET_RATE, datarate, sizeof(int), false);
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if (error) {
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return -1;
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} else {
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*datarate = dtoh32(*datarate);
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}
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return error;
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}
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#ifdef WL_CFG80211
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extern chanspec_t
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wl_chspec_driver_to_host(chanspec_t chanspec);
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#define WL_EXTRA_BUF_MAX 2048
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int wldev_get_mode(
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struct net_device *dev, uint8 *cap)
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{
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int error = 0;
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int chanspec = 0;
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uint16 band = 0;
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uint16 bandwidth = 0;
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wl_bss_info_t *bss = NULL;
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char* buf = kmalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL);
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if (!buf)
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return -1;
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*(u32*) buf = htod32(WL_EXTRA_BUF_MAX);
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error = wldev_ioctl(dev, WLC_GET_BSS_INFO, (void*)buf, WL_EXTRA_BUF_MAX, false);
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if (error) {
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WLDEV_ERROR(("%s:failed:%d\n", __FUNCTION__, error));
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return -1;
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}
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bss = (struct wl_bss_info *)(buf + 4);
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chanspec = wl_chspec_driver_to_host(bss->chanspec);
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band = chanspec & WL_CHANSPEC_BAND_MASK;
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bandwidth = chanspec & WL_CHANSPEC_BW_MASK;
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if (band == WL_CHANSPEC_BAND_2G) {
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if (bss->n_cap)
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strcpy(cap, "n");
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else
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strcpy(cap, "bg");
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} else if (band == WL_CHANSPEC_BAND_5G) {
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if (bandwidth == WL_CHANSPEC_BW_80)
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strcpy(cap, "ac");
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else if ((bandwidth == WL_CHANSPEC_BW_40) || (bandwidth == WL_CHANSPEC_BW_20)) {
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if ((bss->nbss_cap & 0xf00) && (bss->n_cap))
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strcpy(cap, "n|ac");
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else if (bss->n_cap)
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strcpy(cap, "n");
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else if (bss->vht_cap)
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strcpy(cap, "ac");
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else
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strcpy(cap, "a");
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} else {
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WLDEV_ERROR(("%s:Mode get failed\n", __FUNCTION__));
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return -1;
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}
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}
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return error;
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}
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#endif
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int wldev_set_country(
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struct net_device *dev, char *country_code, bool notify, bool user_enforced, int revinfo)
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{
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int error = -1;
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wl_country_t cspec = {{0}, 0, {0}};
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scb_val_t scbval;
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char smbuf[WLC_IOCTL_SMLEN];
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if (!country_code)
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return error;
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bzero(&scbval, sizeof(scb_val_t));
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error = wldev_iovar_getbuf(dev, "country", NULL, 0, &cspec, sizeof(cspec), NULL);
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if (error < 0) {
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WLDEV_ERROR(("%s: get country failed = %d\n", __FUNCTION__, error));
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return error;
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}
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if ((error < 0) ||
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dhd_force_country_change(dev) ||
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(strncmp(country_code, cspec.ccode, WLC_CNTRY_BUF_SZ) != 0)) {
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if (user_enforced) {
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bzero(&scbval, sizeof(scb_val_t));
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error = wldev_ioctl(dev, WLC_DISASSOC, &scbval, sizeof(scb_val_t), true);
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if (error < 0) {
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WLDEV_ERROR(("%s: set country failed due to Disassoc error %d\n",
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__FUNCTION__, error));
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return error;
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}
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}
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cspec.rev = revinfo;
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memcpy(cspec.country_abbrev, country_code, WLC_CNTRY_BUF_SZ);
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memcpy(cspec.ccode, country_code, WLC_CNTRY_BUF_SZ);
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error = dhd_conf_get_country_from_config(dhd_get_pub(dev), &cspec);
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if (error)
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dhd_get_customized_country_code(dev, (char *)&cspec.country_abbrev, &cspec);
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error = wldev_iovar_setbuf(dev, "country", &cspec, sizeof(cspec),
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smbuf, sizeof(smbuf), NULL);
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if (error < 0) {
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WLDEV_ERROR(("%s: set country for %s as %s rev %d failed\n",
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__FUNCTION__, country_code, cspec.ccode, cspec.rev));
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return error;
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}
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dhd_conf_fix_country(dhd_get_pub(dev));
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dhd_conf_get_country(dhd_get_pub(dev), &cspec);
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dhd_bus_country_set(dev, &cspec, notify);
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printf("%s: set country for %s as %s rev %d\n",
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__FUNCTION__, country_code, cspec.ccode, cspec.rev);
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}
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return 0;
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}
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