- 根目录:
- drivers
- net
- wireless
- bcmdhd
- wldev_common.c
/*
* Common function shared by Linux WEXT, cfg80211 and p2p drivers
*
* Copyright (C) 1999-2012, Broadcom Corporation
*
* Unless you and Broadcom execute a separate written software license
* agreement governing use of this software, this software is licensed to you
* under the terms of the GNU General Public License version 2 (the "GPL"),
* available at http://www.broadcom.com/licenses/GPLv2.php, with the
* following added to such license:
*
* As a special exception, the copyright holders of this software give you
* permission to link this software with independent modules, and to copy and
* distribute the resulting executable under terms of your choice, provided that
* you also meet, for each linked independent module, the terms and conditions of
* the license of that module. An independent module is a module which is not
* derived from this software. The special exception does not apply to any
* modifications of the software.
*
* Notwithstanding the above, under no circumstances may you combine this
* software in any way with any other Broadcom software provided under a license
* other than the GPL, without Broadcom's express prior written consent.
*
* $Id: wldev_common.c,v 1.1.4.1.2.14 2011-02-09 01:40:07 $
*/
#include <osl.h>
#include <linux/kernel.h>
#include <linux/kthread.h>
#include <linux/netdevice.h>
#include <wldev_common.h>
#include <bcmutils.h>
#define htod32(i) i
#define htod16(i) i
#define dtoh32(i) i
#define dtoh16(i) i
#define htodchanspec(i) i
#define dtohchanspec(i) i
#define WLDEV_ERROR(args) \
do { \
printk(KERN_ERR "WLDEV-ERROR) %s : ", __func__); \
printk args; \
} while (0)
extern int dhd_ioctl_entry_local(struct net_device *net, wl_ioctl_t *ioc, int cmd);
s32 wldev_ioctl(
struct net_device *dev, u32 cmd, void *arg, u32 len, u32 set)
{
s32 ret = 0;
struct wl_ioctl ioc;
memset(&ioc, 0, sizeof(ioc));
ioc.cmd = cmd;
ioc.buf = arg;
ioc.len = len;
ioc.set = set;
ret = dhd_ioctl_entry_local(dev, &ioc, cmd);
return ret;
}
/* Format a iovar buffer, not bsscfg indexed. The bsscfg index will be
* taken care of in dhd_ioctl_entry. Internal use only, not exposed to
* wl_iw, wl_cfg80211 and wl_cfgp2p
*/
static s32 wldev_mkiovar(
s8 *iovar_name, s8 *param, s32 paramlen,
s8 *iovar_buf, u32 buflen)
{
s32 iolen = 0;
iolen = bcm_mkiovar(iovar_name, param, paramlen, iovar_buf, buflen);
return iolen;
}
s32 wldev_iovar_getbuf(
struct net_device *dev, s8 *iovar_name,
void *param, s32 paramlen, void *buf, s32 buflen, struct mutex* buf_sync)
{
s32 ret = 0;
if (buf_sync) {
mutex_lock(buf_sync);
}
wldev_mkiovar(iovar_name, param, paramlen, buf, buflen);
ret = wldev_ioctl(dev, WLC_GET_VAR, buf, buflen, FALSE);
if (buf_sync)
mutex_unlock(buf_sync);
return ret;
}
s32 wldev_iovar_setbuf(
struct net_device *dev, s8 *iovar_name,
void *param, s32 paramlen, void *buf, s32 buflen, struct mutex* buf_sync)
{
s32 ret = 0;
s32 iovar_len;
if (buf_sync) {
mutex_lock(buf_sync);
}
iovar_len = wldev_mkiovar(iovar_name, param, paramlen, buf, buflen);
ret = wldev_ioctl(dev, WLC_SET_VAR, buf, iovar_len, TRUE);
if (buf_sync)
mutex_unlock(buf_sync);
return ret;
}
s32 wldev_iovar_setint(
struct net_device *dev, s8 *iovar, s32 val)
{
s8 iovar_buf[WLC_IOCTL_SMLEN];
val = htod32(val);
memset(iovar_buf, 0, sizeof(iovar_buf));
return wldev_iovar_setbuf(dev, iovar, &val, sizeof(val), iovar_buf,
sizeof(iovar_buf), NULL);
}
s32 wldev_iovar_getint(
struct net_device *dev, s8 *iovar, s32 *pval)
{
s8 iovar_buf[WLC_IOCTL_SMLEN];
s32 err;
memset(iovar_buf, 0, sizeof(iovar_buf));
err = wldev_iovar_getbuf(dev, iovar, pval, sizeof(*pval), iovar_buf,
sizeof(iovar_buf), NULL);
if (err == 0)
{
memcpy(pval, iovar_buf, sizeof(*pval));
*pval = dtoh32(*pval);
}
return err;
}
/** Format a bsscfg indexed iovar buffer. The bsscfg index will be
* taken care of in dhd_ioctl_entry. Internal use only, not exposed to
* wl_iw, wl_cfg80211 and wl_cfgp2p
*/
s32 wldev_mkiovar_bsscfg(
const s8 *iovar_name, s8 *param, s32 paramlen,
s8 *iovar_buf, s32 buflen, s32 bssidx)
{
const s8 *prefix = "bsscfg:";
s8 *p;
u32 prefixlen;
u32 namelen;
u32 iolen;
if (bssidx == 0) {
return wldev_mkiovar((s8*)iovar_name, (s8 *)param, paramlen,
(s8 *) iovar_buf, buflen);
}
prefixlen = (u32) strlen(prefix); /* lengh of bsscfg prefix */
namelen = (u32) strlen(iovar_name) + 1; /* lengh of iovar name + null */
iolen = prefixlen + namelen + sizeof(u32) + paramlen;
if (buflen < 0 || iolen > (u32)buflen)
{
WLDEV_ERROR(("%s: buffer is too short\n", __FUNCTION__));
return BCME_BUFTOOSHORT;
}
p = (s8 *)iovar_buf;
/* copy prefix, no null */
memcpy(p, prefix, prefixlen);
p += prefixlen;
/* copy iovar name including null */
memcpy(p, iovar_name, namelen);
p += namelen;
/* bss config index as first param */
bssidx = htod32(bssidx);
memcpy(p, &bssidx, sizeof(u32));
p += sizeof(u32);
/* parameter buffer follows */
if (paramlen)
memcpy(p, param, paramlen);
return iolen;
}
s32 wldev_iovar_getbuf_bsscfg(
struct net_device *dev, s8 *iovar_name,
void *param, s32 paramlen, void *buf, s32 buflen, s32 bsscfg_idx, struct mutex* buf_sync)
{
s32 ret = 0;
if (buf_sync) {
mutex_lock(buf_sync);
}
wldev_mkiovar_bsscfg(iovar_name, param, paramlen, buf, buflen, bsscfg_idx);
ret = wldev_ioctl(dev, WLC_GET_VAR, buf, buflen, FALSE);
if (buf_sync) {
mutex_unlock(buf_sync);
}
return ret;
}
s32 wldev_iovar_setbuf_bsscfg(
struct net_device *dev, s8 *iovar_name,
void *param, s32 paramlen, void *buf, s32 buflen, s32 bsscfg_idx, struct mutex* buf_sync)
{
s32 ret = 0;
s32 iovar_len;
if (buf_sync) {
mutex_lock(buf_sync);
}
iovar_len = wldev_mkiovar_bsscfg(iovar_name, param, paramlen, buf, buflen, bsscfg_idx);
ret = wldev_ioctl(dev, WLC_SET_VAR, buf, iovar_len, TRUE);
if (buf_sync) {
mutex_unlock(buf_sync);
}
return ret;
}
s32 wldev_iovar_setint_bsscfg(
struct net_device *dev, s8 *iovar, s32 val, s32 bssidx)
{
s8 iovar_buf[WLC_IOCTL_SMLEN];
val = htod32(val);
memset(iovar_buf, 0, sizeof(iovar_buf));
return wldev_iovar_setbuf_bsscfg(dev, iovar, &val, sizeof(val), iovar_buf,
sizeof(iovar_buf), bssidx, NULL);
}
s32 wldev_iovar_getint_bsscfg(
struct net_device *dev, s8 *iovar, s32 *pval, s32 bssidx)
{
s8 iovar_buf[WLC_IOCTL_SMLEN];
s32 err;
memset(iovar_buf, 0, sizeof(iovar_buf));
err = wldev_iovar_getbuf_bsscfg(dev, iovar, pval, sizeof(*pval), iovar_buf,
sizeof(iovar_buf), bssidx, NULL);
if (err == 0)
{
memcpy(pval, iovar_buf, sizeof(*pval));
*pval = dtoh32(*pval);
}
return err;
}
int wldev_get_link_speed(
struct net_device *dev, int *plink_speed)
{
int error;
if (!plink_speed)
return -ENOMEM;
error = wldev_ioctl(dev, WLC_GET_RATE, plink_speed, sizeof(int), 0);
if (unlikely(error))
return error;
/* Convert internal 500Kbps to Kbps */
*plink_speed *= 500;
return error;
}
int wldev_get_rssi(
struct net_device *dev, int *prssi)
{
scb_val_t scb_val;
int error;
if (!prssi)
return -ENOMEM;
bzero(&scb_val, sizeof(scb_val_t));
error = wldev_ioctl(dev, WLC_GET_RSSI, &scb_val, sizeof(scb_val_t), 0);
if (unlikely(error))
return error;
*prssi = dtoh32(scb_val.val);
return error;
}
int wldev_get_ssid(
struct net_device *dev, wlc_ssid_t *pssid)
{
int error;
if (!pssid)
return -ENOMEM;
error = wldev_ioctl(dev, WLC_GET_SSID, pssid, sizeof(wlc_ssid_t), 0);
if (unlikely(error))
return error;
pssid->SSID_len = dtoh32(pssid->SSID_len);
return error;
}
int wldev_get_band(
struct net_device *dev, uint *pband)
{
int error;
error = wldev_ioctl(dev, WLC_GET_BAND, pband, sizeof(uint), 0);
return error;
}
int wldev_set_band(
struct net_device *dev, uint band)
{
int error = -1;
if ((band == WLC_BAND_AUTO) || (band == WLC_BAND_5G) || (band == WLC_BAND_2G)) {
error = wldev_ioctl(dev, WLC_SET_BAND, &band, sizeof(band), 1);
}
return error;
}
int wldev_set_country(
struct net_device *dev, char *country_code)
{
int error = -1;
wl_country_t cspec = {{0}, 0, {0}};
scb_val_t scbval;
char smbuf[WLC_IOCTL_SMLEN];
if (!country_code)
return error;
error = wldev_iovar_getbuf(dev, "country", &cspec, sizeof(cspec),
smbuf, sizeof(smbuf), NULL);
if (error < 0)
WLDEV_ERROR(("%s: get country failed = %d\n", __FUNCTION__, error));
if ((error < 0) ||
(strncmp(country_code, smbuf, WLC_CNTRY_BUF_SZ) != 0)) {
bzero(&scbval, sizeof(scb_val_t));
error = wldev_ioctl(dev, WLC_DISASSOC, &scbval, sizeof(scb_val_t), 1);
if (error < 0) {
WLDEV_ERROR(("%s: set country failed due to Disassoc error %d\n",
__FUNCTION__, error));
return error;
}
}
cspec.rev = -1;
memcpy(cspec.country_abbrev, country_code, WLC_CNTRY_BUF_SZ);
memcpy(cspec.ccode, country_code, WLC_CNTRY_BUF_SZ);
get_customized_country_code((char *)&cspec.country_abbrev, &cspec);
error = wldev_iovar_setbuf(dev, "country", &cspec, sizeof(cspec),
smbuf, sizeof(smbuf), NULL);
if (error < 0) {
WLDEV_ERROR(("%s: set country for %s as %s rev %d failed\n",
__FUNCTION__, country_code, cspec.ccode, cspec.rev));
return error;
}
dhd_bus_country_set(dev, &cspec);
WLDEV_ERROR(("%s: set country for %s as %s rev %d\n",
__FUNCTION__, country_code, cspec.ccode, cspec.rev));
return 0;
}