| /* |
| * Common function shared by Linux WEXT, cfg80211 and p2p drivers |
| * |
| * Copyright (C) 1999-2017, 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. |
| * |
| * |
| * <<Broadcom-WL-IPTag/Open:>> |
| * |
| * $Id: wldev_common.c 699163 2017-05-12 05:18:23Z $ |
| */ |
| |
| #include <osl.h> |
| #include <linux/kernel.h> |
| #include <linux/kthread.h> |
| #include <linux/netdevice.h> |
| |
| #include <wldev_common.h> |
| #include <bcmutils.h> |
| #ifdef WL_CFG80211 |
| #include <wl_cfg80211.h> |
| #endif |
| #include <dhd_config.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) "); \ |
| printk args; \ |
| } while (0) |
| |
| #define WLDEV_INFO(args) \ |
| do { \ |
| printk(KERN_INFO "WLDEV-INFO) "); \ |
| 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; |
| } |
| |
| |
| /* |
| SET commands : |
| cast buffer to non-const and call the GET function |
| */ |
| |
| s32 wldev_ioctl_set( |
| struct net_device *dev, u32 cmd, const void *arg, u32 len) |
| { |
| |
| #if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__) |
| #pragma GCC diagnostic push |
| #pragma GCC diagnostic ignored "-Wcast-qual" |
| #endif |
| return wldev_ioctl(dev, cmd, (void *)arg, len, 1); |
| #if defined(STRICT_GCC_WARNINGS) && defined(__GNUC__) |
| #pragma GCC diagnostic pop |
| #endif |
| |
| } |
| |
| |
| s32 wldev_ioctl_get( |
| struct net_device *dev, u32 cmd, void *arg, u32 len) |
| { |
| return wldev_ioctl(dev, cmd, (void *)arg, len, 0); |
| } |
| |
| /* 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( |
| const 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); |
| } |
| |
| if (buf && (buflen > 0)) { |
| /* initialize the response buffer */ |
| memset(buf, 0, buflen); |
| } else { |
| ret = BCME_BADARG; |
| goto exit; |
| } |
| |
| ret = wldev_mkiovar(iovar_name, param, paramlen, buf, buflen); |
| |
| if (!ret) { |
| ret = BCME_BUFTOOSHORT; |
| goto exit; |
| } |
| ret = wldev_ioctl_get(dev, WLC_GET_VAR, buf, buflen); |
| exit: |
| 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); |
| if (iovar_len > 0) |
| ret = wldev_ioctl_set(dev, WLC_SET_VAR, buf, iovar_len); |
| else |
| ret = BCME_BUFTOOSHORT; |
| |
| 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; |
| |
| /* initialize buffer */ |
| if (!iovar_buf || buflen == 0) |
| return BCME_BADARG; |
| memset(iovar_buf, 0, buflen); |
| |
| if (bssidx == 0) { |
| return wldev_mkiovar(iovar_name, param, paramlen, |
| 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_get(dev, WLC_GET_VAR, buf, buflen); |
| 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); |
| if (iovar_len > 0) |
| ret = wldev_ioctl_set(dev, WLC_SET_VAR, buf, iovar_len); |
| else { |
| ret = BCME_BUFTOOSHORT; |
| } |
| |
| 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; |
| *plink_speed = 0; |
| error = wldev_ioctl_get(dev, WLC_GET_RATE, plink_speed, sizeof(int)); |
| if (unlikely(error)) |
| return error; |
| |
| /* Convert internal 500Kbps to Kbps */ |
| *plink_speed *= 500; |
| return error; |
| } |
| |
| int wldev_get_rssi( |
| struct net_device *dev, scb_val_t *scb_val) |
| { |
| int error; |
| |
| if (!scb_val) |
| return -ENOMEM; |
| memset(scb_val, 0, sizeof(scb_val_t)); |
| error = wldev_ioctl_get(dev, WLC_GET_RSSI, scb_val, sizeof(scb_val_t)); |
| if (unlikely(error)) |
| return error; |
| |
| return error; |
| } |
| |
| int wldev_get_ssid( |
| struct net_device *dev, wlc_ssid_t *pssid) |
| { |
| int error; |
| |
| if (!pssid) |
| return -ENOMEM; |
| memset(pssid, 0, sizeof(wlc_ssid_t)); |
| error = wldev_ioctl_get(dev, WLC_GET_SSID, pssid, sizeof(wlc_ssid_t)); |
| 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; |
| |
| *pband = 0; |
| error = wldev_ioctl_get(dev, WLC_GET_BAND, pband, sizeof(uint)); |
| 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_set(dev, WLC_SET_BAND, &band, sizeof(band)); |
| if (!error) |
| dhd_bus_band_set(dev, band); |
| } |
| return error; |
| } |
| int wldev_get_datarate(struct net_device *dev, int *datarate) |
| { |
| int error = 0; |
| |
| error = wldev_ioctl_get(dev, WLC_GET_RATE, datarate, sizeof(int)); |
| if (error) { |
| return -1; |
| } else { |
| *datarate = dtoh32(*datarate); |
| } |
| |
| return error; |
| } |
| |
| #ifdef WL_CFG80211 |
| extern chanspec_t |
| wl_chspec_driver_to_host(chanspec_t chanspec); |
| #define WL_EXTRA_BUF_MAX 2048 |
| int wldev_get_mode( |
| struct net_device *dev, uint8 *cap, uint8 caplen) |
| { |
| int error = 0; |
| int chanspec = 0; |
| uint16 band = 0; |
| uint16 bandwidth = 0; |
| wl_bss_info_t *bss = NULL; |
| char* buf = NULL; |
| |
| buf = kzalloc(WL_EXTRA_BUF_MAX, GFP_KERNEL); |
| if (!buf) { |
| WLDEV_ERROR(("%s:ENOMEM\n", __FUNCTION__)); |
| return -ENOMEM; |
| } |
| |
| *(u32*) buf = htod32(WL_EXTRA_BUF_MAX); |
| error = wldev_ioctl_get(dev, WLC_GET_BSS_INFO, (void*)buf, WL_EXTRA_BUF_MAX); |
| if (error) { |
| WLDEV_ERROR(("%s:failed:%d\n", __FUNCTION__, error)); |
| kfree(buf); |
| buf = NULL; |
| return error; |
| } |
| bss = (struct wl_bss_info *)(buf + 4); |
| chanspec = wl_chspec_driver_to_host(bss->chanspec); |
| |
| band = chanspec & WL_CHANSPEC_BAND_MASK; |
| bandwidth = chanspec & WL_CHANSPEC_BW_MASK; |
| |
| if (band == WL_CHANSPEC_BAND_2G) { |
| if (bss->n_cap) |
| strncpy(cap, "n", caplen); |
| else |
| strncpy(cap, "bg", caplen); |
| } else if (band == WL_CHANSPEC_BAND_5G) { |
| if (bandwidth == WL_CHANSPEC_BW_80) |
| strncpy(cap, "ac", caplen); |
| else if ((bandwidth == WL_CHANSPEC_BW_40) || (bandwidth == WL_CHANSPEC_BW_20)) { |
| if ((bss->nbss_cap & 0xf00) && (bss->n_cap)) |
| strncpy(cap, "n|ac", caplen); |
| else if (bss->n_cap) |
| strncpy(cap, "n", caplen); |
| else if (bss->vht_cap) |
| strncpy(cap, "ac", caplen); |
| else |
| strncpy(cap, "a", caplen); |
| } else { |
| WLDEV_ERROR(("%s:Mode get failed\n", __FUNCTION__)); |
| error = BCME_ERROR; |
| } |
| |
| } |
| kfree(buf); |
| buf = NULL; |
| return error; |
| } |
| #endif |
| |
| int wldev_set_country( |
| struct net_device *dev, char *country_code, bool notify, bool user_enforced, int revinfo) |
| { |
| int error = -1; |
| wl_country_t cspec = {{0}, 0, {0}}; |
| wl_country_t cur_cspec = {{0}, 0, {0}}; /* current ccode */ |
| scb_val_t scbval; |
| char smbuf[WLC_IOCTL_SMLEN]; |
| #ifdef WL_CFG80211 |
| struct wireless_dev *wdev = ndev_to_wdev(dev); |
| struct wiphy *wiphy = wdev->wiphy; |
| struct bcm_cfg80211 *cfg = wiphy_priv(wiphy); |
| #endif |
| |
| if (!country_code) |
| return error; |
| |
| bzero(&scbval, sizeof(scb_val_t)); |
| error = wldev_iovar_getbuf(dev, "country", NULL, 0, &cur_cspec, sizeof(wl_country_t), NULL); |
| if (error < 0) { |
| WLDEV_ERROR(("%s: get country failed = %d\n", __FUNCTION__, error)); |
| return error; |
| } |
| |
| cspec.rev = revinfo; |
| memcpy(cspec.country_abbrev, country_code, WLC_CNTRY_BUF_SZ); |
| memcpy(cspec.ccode, country_code, WLC_CNTRY_BUF_SZ); |
| error = dhd_conf_map_country_list(dhd_get_pub(dev), &cspec); |
| if (error) |
| dhd_get_customized_country_code(dev, (char *)&cspec.country_abbrev, &cspec); |
| |
| WLDEV_INFO(("%s: Current country %s rev %d\n", |
| __FUNCTION__, cur_cspec.ccode, cur_cspec.rev)); |
| |
| if ((error < 0) || |
| dhd_force_country_change(dev) || |
| (strncmp(cspec.ccode, cur_cspec.ccode, WLC_CNTRY_BUF_SZ) != 0)) { |
| |
| if ((user_enforced) |
| #ifdef WL_CFG80211 |
| && (wl_get_drv_status(cfg, CONNECTED, dev)) |
| #endif |
| ) { |
| bzero(&scbval, sizeof(scb_val_t)); |
| error = wldev_ioctl_set(dev, WLC_DISASSOC, |
| &scbval, sizeof(scb_val_t)); |
| if (error < 0) { |
| WLDEV_ERROR(("%s: set country failed due to Disassoc error %d\n", |
| __FUNCTION__, error)); |
| return error; |
| } |
| } |
| |
| 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_conf_fix_country(dhd_get_pub(dev)); |
| dhd_conf_get_country(dhd_get_pub(dev), &cspec); |
| dhd_bus_country_set(dev, &cspec, notify); |
| printf("%s: set country for %s as %s rev %d\n", |
| __FUNCTION__, country_code, cspec.ccode, cspec.rev); |
| } |
| return 0; |
| } |
