diff options
Diffstat (limited to 'drivers/net/ethernet/toshiba/ps3_gelic_wireless.c')
| -rw-r--r-- | drivers/net/ethernet/toshiba/ps3_gelic_wireless.c | 2681 |
1 files changed, 2681 insertions, 0 deletions
diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c b/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c new file mode 100644 index 000000000000..fd4ed7f8cfa1 --- /dev/null +++ b/drivers/net/ethernet/toshiba/ps3_gelic_wireless.c @@ -0,0 +1,2681 @@ +/* + * PS3 gelic network driver. + * + * Copyright (C) 2007 Sony Computer Entertainment Inc. + * Copyright 2007 Sony Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#undef DEBUG + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> + +#include <linux/etherdevice.h> +#include <linux/ethtool.h> +#include <linux/if_vlan.h> + +#include <linux/in.h> +#include <linux/ip.h> +#include <linux/tcp.h> +#include <linux/wireless.h> +#include <linux/ieee80211.h> +#include <linux/if_arp.h> +#include <linux/ctype.h> +#include <linux/string.h> +#include <net/iw_handler.h> + +#include <linux/dma-mapping.h> +#include <net/checksum.h> +#include <asm/firmware.h> +#include <asm/ps3.h> +#include <asm/lv1call.h> + +#include "ps3_gelic_net.h" +#include "ps3_gelic_wireless.h" + + +static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan, + u8 *essid, size_t essid_len); +static int gelic_wl_try_associate(struct net_device *netdev); + +/* + * tables + */ + +/* 802.11b/g channel to freq in MHz */ +static const int channel_freq[] = { + 2412, 2417, 2422, 2427, 2432, + 2437, 2442, 2447, 2452, 2457, + 2462, 2467, 2472, 2484 +}; +#define NUM_CHANNELS ARRAY_SIZE(channel_freq) + +/* in bps */ +static const int bitrate_list[] = { + 1000000, + 2000000, + 5500000, + 11000000, + 6000000, + 9000000, + 12000000, + 18000000, + 24000000, + 36000000, + 48000000, + 54000000 +}; +#define NUM_BITRATES ARRAY_SIZE(bitrate_list) + +/* + * wpa2 support requires the hypervisor version 2.0 or later + */ +static inline int wpa2_capable(void) +{ + return 0 <= ps3_compare_firmware_version(2, 0, 0); +} + +static inline int precise_ie(void) +{ + return 0 <= ps3_compare_firmware_version(2, 2, 0); +} +/* + * post_eurus_cmd helpers + */ +struct eurus_cmd_arg_info { + int pre_arg; /* command requires arg1, arg2 at POST COMMAND */ + int post_arg; /* command requires arg1, arg2 at GET_RESULT */ +}; + +static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = { + [GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1}, + [GELIC_EURUS_CMD_SET_WEP_CFG] = { .pre_arg = 1}, + [GELIC_EURUS_CMD_SET_WPA_CFG] = { .pre_arg = 1}, + [GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1}, + [GELIC_EURUS_CMD_GET_WEP_CFG] = { .post_arg = 1}, + [GELIC_EURUS_CMD_GET_WPA_CFG] = { .post_arg = 1}, + [GELIC_EURUS_CMD_GET_RSSI_CFG] = { .post_arg = 1}, + [GELIC_EURUS_CMD_START_SCAN] = { .pre_arg = 1}, + [GELIC_EURUS_CMD_GET_SCAN] = { .post_arg = 1}, +}; + +#ifdef DEBUG +static const char *cmdstr(enum gelic_eurus_command ix) +{ + switch (ix) { + case GELIC_EURUS_CMD_ASSOC: + return "ASSOC"; + case GELIC_EURUS_CMD_DISASSOC: + return "DISASSOC"; + case GELIC_EURUS_CMD_START_SCAN: + return "SCAN"; + case GELIC_EURUS_CMD_GET_SCAN: + return "GET SCAN"; + case GELIC_EURUS_CMD_SET_COMMON_CFG: + return "SET_COMMON_CFG"; + case GELIC_EURUS_CMD_GET_COMMON_CFG: + return "GET_COMMON_CFG"; + case GELIC_EURUS_CMD_SET_WEP_CFG: + return "SET_WEP_CFG"; + case GELIC_EURUS_CMD_GET_WEP_CFG: + return "GET_WEP_CFG"; + case GELIC_EURUS_CMD_SET_WPA_CFG: + return "SET_WPA_CFG"; + case GELIC_EURUS_CMD_GET_WPA_CFG: + return "GET_WPA_CFG"; + case GELIC_EURUS_CMD_GET_RSSI_CFG: + return "GET_RSSI"; + default: + break; + } + return ""; +}; +#else +static inline const char *cmdstr(enum gelic_eurus_command ix) +{ + return ""; +} +#endif + +/* synchronously do eurus commands */ +static void gelic_eurus_sync_cmd_worker(struct work_struct *work) +{ + struct gelic_eurus_cmd *cmd; + struct gelic_card *card; + struct gelic_wl_info *wl; + + u64 arg1, arg2; + + pr_debug("%s: <-\n", __func__); + cmd = container_of(work, struct gelic_eurus_cmd, work); + BUG_ON(cmd_info[cmd->cmd].pre_arg && + cmd_info[cmd->cmd].post_arg); + wl = cmd->wl; + card = port_to_card(wl_port(wl)); + + if (cmd_info[cmd->cmd].pre_arg) { + arg1 = (cmd->buffer) ? + ps3_mm_phys_to_lpar(__pa(cmd->buffer)) : + 0; + arg2 = cmd->buf_size; + } else { + arg1 = 0; + arg2 = 0; + } + init_completion(&wl->cmd_done_intr); + pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd)); + cmd->status = lv1_net_control(bus_id(card), dev_id(card), + GELIC_LV1_POST_WLAN_CMD, + cmd->cmd, arg1, arg2, + &cmd->tag, &cmd->size); + if (cmd->status) { + complete(&cmd->done); + pr_info("%s: cmd issue failed\n", __func__); + return; + } + + wait_for_completion(&wl->cmd_done_intr); + + if (cmd_info[cmd->cmd].post_arg) { + arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer)); + arg2 = cmd->buf_size; + } else { + arg1 = 0; + arg2 = 0; + } + + cmd->status = lv1_net_control(bus_id(card), dev_id(card), + GELIC_LV1_GET_WLAN_CMD_RESULT, + cmd->tag, arg1, arg2, + &cmd->cmd_status, &cmd->size); +#ifdef DEBUG + if (cmd->status || cmd->cmd_status) { + pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__, + cmd->tag, arg1, arg2); + pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n", + __func__, cmd->status, cmd->cmd_status, cmd->size); + } +#endif + complete(&cmd->done); + pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd)); +} + +static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl, + unsigned int eurus_cmd, + void *buffer, + unsigned int buf_size) +{ + struct gelic_eurus_cmd *cmd; + + /* allocate cmd */ + cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); + if (!cmd) + return NULL; + + /* initialize members */ + cmd->cmd = eurus_cmd; + cmd->buffer = buffer; + cmd->buf_size = buf_size; + cmd->wl = wl; + INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker); + init_completion(&cmd->done); + queue_work(wl->eurus_cmd_queue, &cmd->work); + + /* wait for command completion */ + wait_for_completion(&cmd->done); + + return cmd; +} + +static u32 gelic_wl_get_link(struct net_device *netdev) +{ + struct gelic_wl_info *wl = port_wl(netdev_port(netdev)); + u32 ret; + + pr_debug("%s: <-\n", __func__); + mutex_lock(&wl->assoc_stat_lock); + if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) + ret = 1; + else + ret = 0; + mutex_unlock(&wl->assoc_stat_lock); + pr_debug("%s: ->\n", __func__); + return ret; +} + +static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid) +{ + union iwreq_data data; + + memset(&data, 0, sizeof(data)); + if (bssid) + memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN); + data.ap_addr.sa_family = ARPHRD_ETHER; + wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP, + &data, NULL); +} + +/* + * wireless extension handlers and helpers + */ + +/* SIOGIWNAME */ +static int gelic_wl_get_name(struct net_device *dev, + struct iw_request_info *info, + union iwreq_data *iwreq, char *extra) +{ + strcpy(iwreq->name, "IEEE 802.11bg"); + return 0; +} + +static void gelic_wl_get_ch_info(struct gelic_wl_info *wl) +{ + struct gelic_card *card = port_to_card(wl_port(wl)); + u64 ch_info_raw, tmp; + int status; + + if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) { + status = lv1_net_control(bus_id(card), dev_id(card), + GELIC_LV1_GET_CHANNEL, 0, 0, 0, + &ch_info_raw, + &tmp); + /* some fw versions may return error */ + if (status) { + if (status != LV1_NO_ENTRY) + pr_info("%s: available ch unknown\n", __func__); + wl->ch_info = 0x07ff;/* 11 ch */ + } else + /* 16 bits of MSB has available channels */ + wl->ch_info = ch_info_raw >> 48; + } +} + +/* SIOGIWRANGE */ +static int gelic_wl_get_range(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *iwreq, char *extra) +{ + struct iw_point *point = &iwreq->data; + struct iw_range *range = (struct iw_range *)extra; + struct gelic_wl_info *wl = port_wl(netdev_port(netdev)); + unsigned int i, chs; + + pr_debug("%s: <-\n", __func__); + point->length = sizeof(struct iw_range); + memset(range, 0, sizeof(struct iw_range)); + + range->we_version_compiled = WIRELESS_EXT; + range->we_version_source = 22; + + /* available channels and frequencies */ + gelic_wl_get_ch_info(wl); + + for (i = 0, chs = 0; + i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++) + if (wl->ch_info & (1 << i)) { + range->freq[chs].i = i + 1; + range->freq[chs].m = channel_freq[i]; + range->freq[chs].e = 6; + chs++; + } + range->num_frequency = chs; + range->old_num_frequency = chs; + range->num_channels = chs; + range->old_num_channels = chs; + + /* bitrates */ + for (i = 0; i < NUM_BITRATES; i++) + range->bitrate[i] = bitrate_list[i]; + range->num_bitrates = i; + + /* signal levels */ + range->max_qual.qual = 100; /* relative value */ + range->max_qual.level = 100; + range->avg_qual.qual = 50; + range->avg_qual.level = 50; + range->sensitivity = 0; + + /* Event capability */ + IW_EVENT_CAPA_SET_KERNEL(range->event_capa); + IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP); + IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN); + + /* encryption capability */ + range->enc_capa = IW_ENC_CAPA_WPA | + IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP | + IW_ENC_CAPA_4WAY_HANDSHAKE; + if (wpa2_capable()) + range->enc_capa |= IW_ENC_CAPA_WPA2; + range->encoding_size[0] = 5; /* 40bit WEP */ + range->encoding_size[1] = 13; /* 104bit WEP */ + range->encoding_size[2] = 32; /* WPA-PSK */ + range->num_encoding_sizes = 3; + range->max_encoding_tokens = GELIC_WEP_KEYS; + + /* scan capability */ + range->scan_capa = IW_SCAN_CAPA_ESSID; + + pr_debug("%s: ->\n", __func__); + return 0; + +} + +/* SIOC{G,S}IWSCAN */ +static int gelic_wl_set_scan(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct gelic_wl_info *wl = port_wl(netdev_priv(netdev)); + struct iw_scan_req *req; + u8 *essid = NULL; + size_t essid_len = 0; + + if (wrqu->data.length == sizeof(struct iw_scan_req) && + wrqu->data.flags & IW_SCAN_THIS_ESSID) { + req = (struct iw_scan_req*)extra; + essid = req->essid; + essid_len = req->essid_len; + pr_debug("%s: ESSID scan =%s\n", __func__, essid); + } + return gelic_wl_start_scan(wl, 1, essid, essid_len); +} + +#define OUI_LEN 3 +static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac }; +static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 }; + +/* + * synthesize WPA/RSN IE data + * See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25 + * for the format + */ +static size_t gelic_wl_synthesize_ie(u8 *buf, + struct gelic_eurus_scan_info *scan) +{ + + const u8 *oui_header; + u8 *start = buf; + int rsn; + int ccmp; + + pr_debug("%s: <- sec=%16x\n", __func__, scan->security); + switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) { + case GELIC_EURUS_SCAN_SEC_WPA: + rsn = 0; + break; + case GELIC_EURUS_SCAN_SEC_WPA2: + rsn = 1; + break; + default: + /* WEP or none. No IE returned */ + return 0; + } + + switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) { + case GELIC_EURUS_SCAN_SEC_WPA_TKIP: + ccmp = 0; + break; + case GELIC_EURUS_SCAN_SEC_WPA_AES: + ccmp = 1; + break; + default: + if (rsn) { + ccmp = 1; + pr_info("%s: no cipher info. defaulted to CCMP\n", + __func__); + } else { + ccmp = 0; + pr_info("%s: no cipher info. defaulted to TKIP\n", + __func__); + } + } + + if (rsn) + oui_header = rsn_oui; + else + oui_header = wpa_oui; + + /* element id */ + if (rsn) + *buf++ = WLAN_EID_RSN; + else + *buf++ = WLAN_EID_GENERIC; + + /* length filed; set later */ + buf++; + + /* wpa special header */ + if (!rsn) { + memcpy(buf, wpa_oui, OUI_LEN); + buf += OUI_LEN; + *buf++ = 0x01; + } + + /* version */ + *buf++ = 0x01; /* version 1.0 */ + *buf++ = 0x00; + + /* group cipher */ + memcpy(buf, oui_header, OUI_LEN); + buf += OUI_LEN; + + if (ccmp) + *buf++ = 0x04; /* CCMP */ + else + *buf++ = 0x02; /* TKIP */ + + /* pairwise key count always 1 */ + *buf++ = 0x01; + *buf++ = 0x00; + + /* pairwise key suit */ + memcpy(buf, oui_header, OUI_LEN); + buf += OUI_LEN; + if (ccmp) + *buf++ = 0x04; /* CCMP */ + else + *buf++ = 0x02; /* TKIP */ + + /* AKM count is 1 */ + *buf++ = 0x01; + *buf++ = 0x00; + + /* AKM suite is assumed as PSK*/ + memcpy(buf, oui_header, OUI_LEN); + buf += OUI_LEN; + *buf++ = 0x02; /* PSK */ + + /* RSN capabilities is 0 */ + *buf++ = 0x00; + *buf++ = 0x00; + + /* set length field */ + start[1] = (buf - start - 2); + + pr_debug("%s: ->\n", __func__); + return buf - start; +} + +struct ie_item { + u8 *data; + u8 len; +}; + +struct ie_info { + struct ie_item wpa; + struct ie_item rsn; +}; + +static void gelic_wl_parse_ie(u8 *data, size_t len, + struct ie_info *ie_info) +{ + size_t data_left = len; + u8 *pos = data; + u8 item_len; + u8 item_id; + + pr_debug("%s: data=%p len=%ld\n", __func__, + data, len); + memset(ie_info, 0, sizeof(struct ie_info)); + + while (2 <= data_left) { + item_id = *pos++; + item_len = *pos++; + data_left -= 2; + + if (data_left < item_len) + break; + + switch (item_id) { + case WLAN_EID_GENERIC: + if ((OUI_LEN + 1 <= item_len) && + !memcmp(pos, wpa_oui, OUI_LEN) && + pos[OUI_LEN] == 0x01) { + ie_info->wpa.data = pos - 2; + ie_info->wpa.len = item_len + 2; + } + break; + case WLAN_EID_RSN: + ie_info->rsn.data = pos - 2; + /* length includes the header */ + ie_info->rsn.len = item_len + 2; + break; + default: + pr_debug("%s: ignore %#x,%d\n", __func__, + item_id, item_len); + break; + } + pos += item_len; + data_left -= item_len; + } + pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__, + ie_info->wpa.data, ie_info->wpa.len, + ie_info->rsn.data, ie_info->rsn.len); +} + + +/* + * translate the scan informations from hypervisor to a + * independent format + */ +static char *gelic_wl_translate_scan(struct net_device *netdev, + struct iw_request_info *info, + char *ev, + char *stop, + struct gelic_wl_scan_info *network) +{ + struct iw_event iwe; + struct gelic_eurus_scan_info *scan = network->hwinfo; + char *tmp; + u8 rate; + unsigned int i, j, len; + u8 buf[64]; /* arbitrary size large enough */ + + pr_debug("%s: <-\n", __func__); + + /* first entry should be AP's mac address */ + iwe.cmd = SIOCGIWAP; + iwe.u.ap_addr.sa_family = ARPHRD_ETHER; + memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN); + ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_ADDR_LEN); + + /* ESSID */ + iwe.cmd = SIOCGIWESSID; + iwe.u.data.flags = 1; + iwe.u.data.length = strnlen(scan->essid, 32); + ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid); + + /* FREQUENCY */ + iwe.cmd = SIOCGIWFREQ; + iwe.u.freq.m = be16_to_cpu(scan->channel); + iwe.u.freq.e = 0; /* table value in MHz */ + iwe.u.freq.i = 0; + ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_FREQ_LEN); + + /* RATES */ + iwe.cmd = SIOCGIWRATE; + iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0; + /* to stuff multiple values in one event */ + tmp = ev + iwe_stream_lcp_len(info); + /* put them in ascendant order (older is first) */ + i = 0; + j = 0; + pr_debug("%s: rates=%d rate=%d\n", __func__, + network->rate_len, network->rate_ext_len); + while (i < network->rate_len) { + if (j < network->rate_ext_len && + ((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f))) + rate = scan->ext_rate[j++] & 0x7f; + else + rate = scan->rate[i++] & 0x7f; + iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */ + tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe, + IW_EV_PARAM_LEN); + } + while (j < network->rate_ext_len) { + iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000; + tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe, + IW_EV_PARAM_LEN); + } + /* Check if we added any rate */ + if (iwe_stream_lcp_len(info) < (tmp - ev)) + ev = tmp; + + /* ENCODE */ + iwe.cmd = SIOCGIWENCODE; + if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY) + iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; + else + iwe.u.data.flags = IW_ENCODE_DISABLED; + iwe.u.data.length = 0; + ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid); + + /* MODE */ + iwe.cmd = SIOCGIWMODE; + if (be16_to_cpu(scan->capability) & + (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) { + if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS) + iwe.u.mode = IW_MODE_MASTER; + else + iwe.u.mode = IW_MODE_ADHOC; + ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_UINT_LEN); + } + + /* QUAL */ + iwe.cmd = IWEVQUAL; + iwe.u.qual.updated = IW_QUAL_ALL_UPDATED | + IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID; + iwe.u.qual.level = be16_to_cpu(scan->rssi); + iwe.u.qual.qual = be16_to_cpu(scan->rssi); + iwe.u.qual.noise = 0; + ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_QUAL_LEN); + + /* RSN */ + memset(&iwe, 0, sizeof(iwe)); + if (be16_to_cpu(scan->size) <= sizeof(*scan)) { + /* If wpa[2] capable station, synthesize IE and put it */ + len = gelic_wl_synthesize_ie(buf, scan); + if (len) { + iwe.cmd = IWEVGENIE; + iwe.u.data.length = len; + ev = iwe_stream_add_point(info, ev, stop, &iwe, buf); + } + } else { + /* this scan info has IE data */ + struct ie_info ie_info; + size_t data_len; + + data_len = be16_to_cpu(scan->size) - sizeof(*scan); + + gelic_wl_parse_ie(scan->elements, data_len, &ie_info); + + if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) { + memcpy(buf, ie_info.wpa.data, ie_info.wpa.len); + iwe.cmd = IWEVGENIE; + iwe.u.data.length = ie_info.wpa.len; + ev = iwe_stream_add_point(info, ev, stop, &iwe, buf); + } + + if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) { + memset(&iwe, 0, sizeof(iwe)); + memcpy(buf, ie_info.rsn.data, ie_info.rsn.len); + iwe.cmd = IWEVGENIE; + iwe.u.data.length = ie_info.rsn.len; + ev = iwe_stream_add_point(info, ev, stop, &iwe, buf); + } + } + + pr_debug("%s: ->\n", __func__); + return ev; +} + + +static int gelic_wl_get_scan(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *wrqu, char *extra) +{ + struct gelic_wl_info *wl = port_wl(netdev_priv(netdev)); + struct gelic_wl_scan_info *scan_info; + char *ev = extra; + char *stop = ev + wrqu->data.length; + int ret = 0; + unsigned long this_time = jiffies; + + pr_debug("%s: <-\n", __func__); + if (mutex_lock_interruptible(&wl->scan_lock)) + return -EAGAIN; + + switch (wl->scan_stat) { + case GELIC_WL_SCAN_STAT_SCANNING: + /* If a scan in progress, caller should call me again */ + ret = -EAGAIN; + goto out; + break; + + case GELIC_WL_SCAN_STAT_INIT: + /* last scan request failed or never issued */ + ret = -ENODEV; + goto out; + break; + case GELIC_WL_SCAN_STAT_GOT_LIST: + /* ok, use current list */ + break; + } + + list_for_each_entry(scan_info, &wl->network_list, list) { + if (wl->scan_age == 0 || + time_after(scan_info->last_scanned + wl->scan_age, + this_time)) + ev = gelic_wl_translate_scan(netdev, info, + ev, stop, + scan_info); + else + pr_debug("%s:entry too old\n", __func__); + + if (stop - ev <= IW_EV_ADDR_LEN) { + ret = -E2BIG; + goto out; + } + } + + wrqu->data.length = ev - extra; + wrqu->data.flags = 0; +out: + mutex_unlock(&wl->scan_lock); + pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length); + return ret; +} + +#ifdef DEBUG +static void scan_list_dump(struct gelic_wl_info *wl) +{ + struct gelic_wl_scan_info *scan_info; + int i; + + i = 0; + list_for_each_entry(scan_info, &wl->network_list, list) { + pr_debug("%s: item %d\n", __func__, i++); + pr_debug("valid=%d eurusindex=%d last=%lx\n", + scan_info->valid, scan_info->eurus_index, + scan_info->last_scanned); + pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n", + scan_info->rate_len, scan_info->rate_ext_len, + scan_info->essid_len); + /* -- */ + pr_debug("bssid=%pM\n", &scan_info->hwinfo->bssid[2]); + pr_debug("essid=%s\n", scan_info->hwinfo->essid); + } +} +#endif + +static int gelic_wl_set_auth(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *data, char *extra) +{ + struct iw_param *param = &data->param; + struct gelic_wl_info *wl = port_wl(netdev_port(netdev)); + unsigned long irqflag; + int ret = 0; + + pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX); + spin_lock_irqsave(&wl->lock, irqflag); + switch (param->flags & IW_AUTH_INDEX) { + case IW_AUTH_WPA_VERSION: + if (param->value & IW_AUTH_WPA_VERSION_DISABLED) { + pr_debug("%s: NO WPA selected\n", __func__); + wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE; + wl->group_cipher_method = GELIC_WL_CIPHER_WEP; + wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP; + } + if (param->value & IW_AUTH_WPA_VERSION_WPA) { + pr_debug("%s: WPA version 1 selected\n", __func__); + wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA; + wl->group_cipher_method = GELIC_WL_CIPHER_TKIP; + wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP; + wl->auth_method = GELIC_EURUS_AUTH_OPEN; + } + if (param->value & IW_AUTH_WPA_VERSION_WPA2) { + /* + * As the hypervisor may not tell the cipher + * information of the AP if it is WPA2, + * you will not decide suitable cipher from + * its beacon. + * You should have knowledge about the AP's + * cipher information in other method prior to + * the association. + */ + if (!precise_ie()) + pr_info("%s: WPA2 may not work\n", __func__); + if (wpa2_capable()) { + wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2; + wl->group_cipher_method = GELIC_WL_CIPHER_AES; + wl->pairwise_cipher_method = + GELIC_WL_CIPHER_AES; + wl->auth_method = GELIC_EURUS_AUTH_OPEN; + } else + ret = -EINVAL; + } + break; + + case IW_AUTH_CIPHER_PAIRWISE: + if (param->value & + (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) { + pr_debug("%s: WEP selected\n", __func__); + wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP; + } + if (param->value & IW_AUTH_CIPHER_TKIP) { + pr_debug("%s: TKIP selected\n", __func__); + wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP; + } + if (param->value & IW_AUTH_CIPHER_CCMP) { + pr_debug("%s: CCMP selected\n", __func__); + wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES; + } + if (param->value & IW_AUTH_CIPHER_NONE) { + pr_debug("%s: no auth selected\n", __func__); + wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE; + } + break; + case IW_AUTH_CIPHER_GROUP: + if (param->value & + (IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) { + pr_debug("%s: WEP selected\n", __func__); + wl->group_cipher_method = GELIC_WL_CIPHER_WEP; + } + if (param->value & IW_AUTH_CIPHER_TKIP) { + pr_debug("%s: TKIP selected\n", __func__); + wl->group_cipher_method = GELIC_WL_CIPHER_TKIP; + } + if (param->value & IW_AUTH_CIPHER_CCMP) { + pr_debug("%s: CCMP selected\n", __func__); + wl->group_cipher_method = GELIC_WL_CIPHER_AES; + } + if (param->value & IW_AUTH_CIPHER_NONE) { + pr_debug("%s: no auth selected\n", __func__); + wl->group_cipher_method = GELIC_WL_CIPHER_NONE; + } + break; + case IW_AUTH_80211_AUTH_ALG: + if (param->value & IW_AUTH_ALG_SHARED_KEY) { + pr_debug("%s: shared key specified\n", __func__); + wl->auth_method = GELIC_EURUS_AUTH_SHARED; + } else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) { + pr_debug("%s: open system specified\n", __func__); + wl->auth_method = GELIC_EURUS_AUTH_OPEN; + } else + ret = -EINVAL; + break; + + case IW_AUTH_WPA_ENABLED: + if (param->value) { + pr_debug("%s: WPA enabled\n", __func__); + wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA; + } else { + pr_debug("%s: WPA disabled\n", __func__); + wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE; + } + break; + + case IW_AUTH_KEY_MGMT: + if (param->value & IW_AUTH_KEY_MGMT_PSK) + break; + /* intentionally fall through */ + default: + ret = -EOPNOTSUPP; + break; + } + + if (!ret) + set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat); + + spin_unlock_irqrestore(&wl->lock, irqflag); + pr_debug("%s: -> %d\n", __func__, ret); + return ret; +} + +static int gelic_wl_get_auth(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *iwreq, char *extra) +{ + struct iw_param *param = &iwreq->param; + struct gelic_wl_info *wl = port_wl(netdev_port(netdev)); + unsigned long irqflag; + int ret = 0; + + pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX); + spin_lock_irqsave(&wl->lock, irqflag); + switch (param->flags & IW_AUTH_INDEX) { + case IW_AUTH_WPA_VERSION: + switch (wl->wpa_level) { + case GELIC_WL_WPA_LEVEL_WPA: + param->value |= IW_AUTH_WPA_VERSION_WPA; + break; + case GELIC_WL_WPA_LEVEL_WPA2: + param->value |= IW_AUTH_WPA_VERSION_WPA2; + break; + default: + param->value |= IW_AUTH_WPA_VERSION_DISABLED; + } + break; + + case IW_AUTH_80211_AUTH_ALG: + if (wl->auth_method == GELIC_EURUS_AUTH_SHARED) + param->value = IW_AUTH_ALG_SHARED_KEY; + else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN) + param->value = IW_AUTH_ALG_OPEN_SYSTEM; + break; + + case IW_AUTH_WPA_ENABLED: + switch (wl->wpa_level) { + case GELIC_WL_WPA_LEVEL_WPA: + case GELIC_WL_WPA_LEVEL_WPA2: + param->value = 1; + break; + default: + param->value = 0; + break; + } + break; + default: + ret = -EOPNOTSUPP; + } + + spin_unlock_irqrestore(&wl->lock, irqflag); + pr_debug("%s: -> %d\n", __func__, ret); + return ret; +} + +/* SIOC{S,G}IWESSID */ +static int gelic_wl_set_essid(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *data, char *extra) +{ + struct gelic_wl_info *wl = port_wl(netdev_priv(netdev)); + unsigned long irqflag; + + pr_debug("%s: <- l=%d f=%d\n", __func__, + data->essid.length, data->essid.flags); + if (IW_ESSID_MAX_SIZE < data->essid.length) + return -EINVAL; + + spin_lock_irqsave(&wl->lock, irqflag); + if (data->essid.flags) { + wl->essid_len = data->essid.length; + memcpy(wl->essid, extra, wl->essid_len); + pr_debug("%s: essid = '%s'\n", __func__, extra); + set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat); + } else { + pr_debug("%s: ESSID any\n", __func__); + clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat); + } + set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat); + spin_unlock_irqrestore(&wl->lock, irqflag); + + + gelic_wl_try_associate(netdev); /* FIXME */ + pr_debug("%s: ->\n", __func__); + return 0; +} + +static int gelic_wl_get_essid(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *data, char *extra) +{ + struct gelic_wl_info *wl = port_wl(netdev_priv(netdev)); + unsigned long irqflag; + + pr_debug("%s: <-\n", __func__); + mutex_lock(&wl->assoc_stat_lock); + spin_lock_irqsave(&wl->lock, irqflag); + if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) || + wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) { + memcpy(extra, wl->essid, wl->essid_len); + data->essid.length = wl->essid_len; + data->essid.flags = 1; + } else + data->essid.flags = 0; + + mutex_unlock(&wl->assoc_stat_lock); + spin_unlock_irqrestore(&wl->lock, irqflag); + pr_debug("%s: -> len=%d\n", __func__, data->essid.length); + + return 0; +} + +/* SIO{S,G}IWENCODE */ +static int gelic_wl_set_encode(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *data, char *extra) +{ + struct gelic_wl_info *wl = port_wl(netdev_priv(netdev)); + struct iw_point *enc = &data->encoding; + __u16 flags; + unsigned long irqflag; + int key_index, index_specified; + int ret = 0; + + pr_debug("%s: <-\n", __func__); + flags = enc->flags & IW_ENCODE_FLAGS; + key_index = enc->flags & IW_ENCODE_INDEX; + + pr_debug("%s: key_index = %d\n", __func__, key_index); + pr_debug("%s: key_len = %d\n", __func__, enc->length); + pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS); + + if (GELIC_WEP_KEYS < key_index) + return -EINVAL; + + spin_lock_irqsave(&wl->lock, irqflag); + if (key_index) { + index_specified = 1; + key_index--; + } else { + index_specified = 0; + key_index = wl->current_key; + } + + if (flags & IW_ENCODE_NOKEY) { + /* if just IW_ENCODE_NOKEY, change current key index */ + if (!flags && index_specified) { + wl->current_key = key_index; + goto done; + } + + if (flags & IW_ENCODE_DISABLED) { + if (!index_specified) { + /* disable encryption */ + wl->group_cipher_method = GELIC_WL_CIPHER_NONE; + wl->pairwise_cipher_method = + GELIC_WL_CIPHER_NONE; + /* invalidate all key */ + wl->key_enabled = 0; + } else + clear_bit(key_index, &wl->key_enabled); + } + + if (flags & IW_ENCODE_OPEN) + wl->auth_method = GELIC_EURUS_AUTH_OPEN; + if (flags & IW_ENCODE_RESTRICTED) { + pr_info("%s: shared key mode enabled\n", __func__); + wl->auth_method = GELIC_EURUS_AUTH_SHARED; + } + } else { + if (IW_ENCODING_TOKEN_MAX < enc->length) { + ret = -EINVAL; + goto done; + } + wl->key_len[key_index] = enc->length; + memcpy(wl->key[key_index], extra, enc->length); + set_bit(key_index, &wl->key_enabled); + wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP; + wl->group_cipher_method = GELIC_WL_CIPHER_WEP; + } + set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat); +done: + spin_unlock_irqrestore(&wl->lock, irqflag); + pr_debug("%s: ->\n", __func__); + return ret; +} + +static int gelic_wl_get_encode(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *data, char *extra) +{ + struct gelic_wl_info *wl = port_wl(netdev_priv(netdev)); + struct iw_point *enc = &data->encoding; + unsigned long irqflag; + unsigned int key_index, index_specified; + int ret = 0; + + pr_debug("%s: <-\n", __func__); + key_index = enc->flags & IW_ENCODE_INDEX; + pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__, + enc->flags, enc->pointer, enc->length, extra); + if (GELIC_WEP_KEYS < key_index) + return -EINVAL; + + spin_lock_irqsave(&wl->lock, irqflag); + if (key_index) { + index_specified = 1; + key_index--; + } else { + index_specified = 0; + key_index = wl->current_key; + } + + if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) { + switch (wl->auth_method) { + case GELIC_EURUS_AUTH_OPEN: + enc->flags = IW_ENCODE_OPEN; + break; + case GELIC_EURUS_AUTH_SHARED: + enc->flags = IW_ENCODE_RESTRICTED; + break; + } + } else + enc->flags = IW_ENCODE_DISABLED; + + if (test_bit(key_index, &wl->key_enabled)) { + if (enc->length < wl->key_len[key_index]) { + ret = -EINVAL; + goto done; + } + enc->length = wl->key_len[key_index]; + memcpy(extra, wl->key[key_index], wl->key_len[key_index]); + } else { + enc->length = 0; + enc->flags |= IW_ENCODE_NOKEY; + } + enc->flags |= key_index + 1; + pr_debug("%s: -> flag=%x len=%d\n", __func__, + enc->flags, enc->length); + +done: + spin_unlock_irqrestore(&wl->lock, irqflag); + return ret; +} + +/* SIOC{S,G}IWAP */ +static int gelic_wl_set_ap(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *data, char *extra) +{ + struct gelic_wl_info *wl = port_wl(netdev_priv(netdev)); + unsigned long irqflag; + + pr_debug("%s: <-\n", __func__); + if (data->ap_addr.sa_family != ARPHRD_ETHER) + return -EINVAL; + + spin_lock_irqsave(&wl->lock, irqflag); + if (is_valid_ether_addr(data->ap_addr.sa_data)) { + memcpy(wl->bssid, data->ap_addr.sa_data, + ETH_ALEN); + set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat); + set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat); + pr_debug("%s: bss=%pM\n", __func__, wl->bssid); + } else { + pr_debug("%s: clear bssid\n", __func__); + clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat); + memset(wl->bssid, 0, ETH_ALEN); + } + spin_unlock_irqrestore(&wl->lock, irqflag); + pr_debug("%s: ->\n", __func__); + return 0; +} + +static int gelic_wl_get_ap(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *data, char *extra) +{ + struct gelic_wl_info *wl = port_wl(netdev_priv(netdev)); + unsigned long irqflag; + + pr_debug("%s: <-\n", __func__); + mutex_lock(&wl->assoc_stat_lock); + spin_lock_irqsave(&wl->lock, irqflag); + if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) { + data->ap_addr.sa_family = ARPHRD_ETHER; + memcpy(data->ap_addr.sa_data, wl->active_bssid, + ETH_ALEN); + } else + memset(data->ap_addr.sa_data, 0, ETH_ALEN); + + spin_unlock_irqrestore(&wl->lock, irqflag); + mutex_unlock(&wl->assoc_stat_lock); + pr_debug("%s: ->\n", __func__); + return 0; +} + +/* SIOC{S,G}IWENCODEEXT */ +static int gelic_wl_set_encodeext(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *data, char *extra) +{ + struct gelic_wl_info *wl = port_wl(netdev_priv(netdev)); + struct iw_point *enc = &data->encoding; + struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; + __u16 alg; + __u16 flags; + unsigned long irqflag; + int key_index; + int ret = 0; + + pr_debug("%s: <-\n", __func__); + flags = enc->flags & IW_ENCODE_FLAGS; + alg = ext->alg; + key_index = enc->flags & IW_ENCODE_INDEX; + + pr_debug("%s: key_index = %d\n", __func__, key_index); + pr_debug("%s: key_len = %d\n", __func__, enc->length); + pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS); + pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags); + pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len); + + if (GELIC_WEP_KEYS < key_index) + return -EINVAL; + + spin_lock_irqsave(&wl->lock, irqflag); + if (key_index) + key_index--; + else + key_index = wl->current_key; + + if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) { + /* reques to change default key index */ + pr_debug("%s: request to change default key to %d\n", + __func__, key_index); + wl->current_key = key_index; + goto done; + } + + if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) { + pr_debug("%s: alg disabled\n", __func__); + wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE; + wl->group_cipher_method = GELIC_WL_CIPHER_NONE; + wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE; + wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */ + } else if (alg == IW_ENCODE_ALG_WEP) { + pr_debug("%s: WEP requested\n", __func__); + if (flags & IW_ENCODE_OPEN) { + pr_debug("%s: open key mode\n", __func__); + wl->auth_method = GELIC_EURUS_AUTH_OPEN; + } + if (flags & IW_ENCODE_RESTRICTED) { + pr_debug("%s: shared key mode\n", __func__); + wl->auth_method = GELIC_EURUS_AUTH_SHARED; + } + if (IW_ENCODING_TOKEN_MAX < ext->key_len) { + pr_info("%s: key is too long %d\n", __func__, + ext->key_len); + ret = -EINVAL; + goto done; + } + /* OK, update the key */ + wl->key_len[key_index] = ext->key_len; + memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX); + memcpy(wl->key[key_index], ext->key, ext->key_len); + set_bit(key_index, &wl->key_enabled); + /* remember wep info changed */ + set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat); + } else if (alg == IW_ENCODE_ALG_PMK) { + if (ext->key_len != WPA_PSK_LEN) { + pr_err("%s: PSK length wrong %d\n", __func__, + ext->key_len); + ret = -EINVAL; + goto done; + } + memset(wl->psk, 0, sizeof(wl->psk)); + memcpy(wl->psk, ext->key, ext->key_len); + wl->psk_len = ext->key_len; + wl->psk_type = GELIC_EURUS_WPA_PSK_BIN; + /* remember PSK configured */ + set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat); + } +done: + spin_unlock_irqrestore(&wl->lock, irqflag); + pr_debug("%s: ->\n", __func__); + return ret; +} + +static int gelic_wl_get_encodeext(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *data, char *extra) +{ + struct gelic_wl_info *wl = port_wl(netdev_priv(netdev)); + struct iw_point *enc = &data->encoding; + struct iw_encode_ext *ext = (struct iw_encode_ext *)extra; + unsigned long irqflag; + int key_index; + int ret = 0; + int max_key_len; + + pr_debug("%s: <-\n", __func__); + + max_key_len = enc->length - sizeof(struct iw_encode_ext); + if (max_key_len < 0) + return -EINVAL; + key_index = enc->flags & IW_ENCODE_INDEX; + + pr_debug("%s: key_index = %d\n", __func__, key_index); + pr_debug("%s: key_len = %d\n", __func__, enc->length); + pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS); + + if (GELIC_WEP_KEYS < key_index) + return -EINVAL; + + spin_lock_irqsave(&wl->lock, irqflag); + if (key_index) + key_index--; + else + key_index = wl->current_key; + + memset(ext, 0, sizeof(struct iw_encode_ext)); + switch (wl->group_cipher_method) { + case GELIC_WL_CIPHER_WEP: + ext->alg = IW_ENCODE_ALG_WEP; + enc->flags |= IW_ENCODE_ENABLED; + break; + case GELIC_WL_CIPHER_TKIP: + ext->alg = IW_ENCODE_ALG_TKIP; + enc->flags |= IW_ENCODE_ENABLED; + break; + case GELIC_WL_CIPHER_AES: + ext->alg = IW_ENCODE_ALG_CCMP; + enc->flags |= IW_ENCODE_ENABLED; + break; + case GELIC_WL_CIPHER_NONE: + default: + ext->alg = IW_ENCODE_ALG_NONE; + enc->flags |= IW_ENCODE_NOKEY; + break; + } + + if (!(enc->flags & IW_ENCODE_NOKEY)) { + if (max_key_len < wl->key_len[key_index]) { + ret = -E2BIG; + goto out; + } + if (test_bit(key_index, &wl->key_enabled)) + memcpy(ext->key, wl->key[key_index], + wl->key_len[key_index]); + else + pr_debug("%s: disabled key requested ix=%d\n", + __func__, key_index); + } +out: + spin_unlock_irqrestore(&wl->lock, irqflag); + pr_debug("%s: ->\n", __func__); + return ret; +} +/* SIOC{S,G}IWMODE */ +static int gelic_wl_set_mode(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *data, char *extra) +{ + __u32 mode = data->mode; + int ret; + + pr_debug("%s: <-\n", __func__); + if (mode == IW_MODE_INFRA) + ret = 0; + else + ret = -EOPNOTSUPP; + pr_debug("%s: -> %d\n", __func__, ret); + return ret; +} + +static int gelic_wl_get_mode(struct net_device *netdev, + struct iw_request_info *info, + union iwreq_data *data, char *extra) +{ + __u32 *mode = &data->mode; + pr_debug("%s: <-\n", __func__); + *mode = IW_MODE_INFRA; + pr_debug("%s: ->\n", __func__); + return 0; +} + +/* SIOCGIWNICKN */ +static int gelic_wl_get_nick(struct net_device *net_dev, + struct iw_request_info *info, + union iwreq_data *data, char *extra) +{ + strcpy(extra, "gelic_wl"); + data->data.length = strlen(extra); + data->data.flags = 1; + return 0; +} + + +/* --- */ + +static struct iw_statistics *gelic_wl_get_wireless_stats( + struct net_device *netdev) +{ + + struct gelic_wl_info *wl = port_wl(netdev_priv(netdev)); + struct gelic_eurus_cmd *cmd; + struct iw_statistics *is; + struct gelic_eurus_rssi_info *rssi; + void *buf; + + pr_debug("%s: <-\n", __func__); + + buf = (void *)__get_free_page(GFP_KERNEL); + if (!buf) + return NULL; + + is = &wl->iwstat; + memset(is, 0, sizeof(*is)); + cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG, + buf, sizeof(*rssi)); + if (cmd && !cmd->status && !cmd->cmd_status) { + rssi = buf; + is->qual.level = be16_to_cpu(rssi->rssi); + is->qual.updated = IW_QUAL_LEVEL_UPDATED | + IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID; + } else + /* not associated */ + is->qual.updated = IW_QUAL_ALL_INVALID; + + kfree(cmd); + free_page((unsigned long)buf); + pr_debug("%s: ->\n", __func__); + return is; +} + +/* + * scanning helpers + */ +static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan, + u8 *essid, size_t essid_len) +{ + struct gelic_eurus_cmd *cmd; + int ret = 0; + void *buf = NULL; + size_t len; + + pr_debug("%s: <- always=%d\n", __func__, always_scan); + if (mutex_lock_interruptible(&wl->scan_lock)) + return -ERESTARTSYS; + + /* + * If already a scan in progress, do not trigger more + */ + if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) { + pr_debug("%s: scanning now\n", __func__); + goto out; + } + + init_completion(&wl->scan_done); + /* + * If we have already a bss list, don't try to get new + * unless we are doing an ESSID scan + */ + if ((!essid_len && !always_scan) + && wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) { + pr_debug("%s: already has the list\n", __func__); + complete(&wl->scan_done); + goto out; + } + + /* ESSID scan ? */ + if (essid_len && essid) { + buf = (void *)__get_free_page(GFP_KERNEL); + if (!buf) { + ret = -ENOMEM; + goto out; + } + len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */ + memset(buf, 0, len); + memcpy(buf, essid, essid_len); + pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf); + } else + len = 0; + + /* + * issue start scan request + */ + wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING; + cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN, + buf, len); + if (!cmd || cmd->status || cmd->cmd_status) { + wl->scan_stat = GELIC_WL_SCAN_STAT_INIT; + complete(&wl->scan_done); + ret = -ENOMEM; + goto out; + } + kfree(cmd); +out: + free_page((unsigned long)buf); + mutex_unlock(&wl->scan_lock); + pr_debug("%s: ->\n", __func__); + return ret; +} + +/* + * retrieve scan result from the chip (hypervisor) + * this function is invoked by schedule work. + */ +static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl) +{ + struct gelic_eurus_cmd *cmd = NULL; + struct gelic_wl_scan_info *target, *tmp; + struct gelic_wl_scan_info *oldest = NULL; + struct gelic_eurus_scan_info *scan_info; + unsigned int scan_info_size; + union iwreq_data data; + unsigned long this_time = jiffies; + unsigned int data_len, i, found, r; + void *buf; + + pr_debug("%s:start\n", __func__); + mutex_lock(&wl->scan_lock); + + buf = (void *)__get_free_page(GFP_KERNEL); + if (!buf) { + pr_info("%s: scan buffer alloc failed\n", __func__); + goto out; + } + + if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) { + /* + * stop() may be called while scanning, ignore result + */ + pr_debug("%s: scan complete when stat != scanning(%d)\n", + __func__, wl->scan_stat); + goto out; + } + + cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN, + buf, PAGE_SIZE); + if (!cmd || cmd->status || cmd->cmd_status) { + wl->scan_stat = GELIC_WL_SCAN_STAT_INIT; + pr_info("%s:cmd failed\n", __func__); + kfree(cmd); + goto out; + } + data_len = cmd->size; + pr_debug("%s: data_len = %d\n", __func__, data_len); + kfree(cmd); + + /* OK, bss list retrieved */ + wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST; + + /* mark all entries are old */ + list_for_each_entry_safe(target, tmp, &wl->network_list, list) { + target->valid = 0; + /* expire too old entries */ + if (time_before(target->last_scanned + wl->scan_age, + this_time)) { + kfree(target->hwinfo); + target->hwinfo = NULL; + list_move_tail(&target->list, &wl->network_free_list); + } + } + + /* put them in the network_list */ + for (i = 0, scan_info_size = 0, scan_info = buf; + scan_info_size < data_len; + i++, scan_info_size += be16_to_cpu(scan_info->size), + scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) { + pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__, + be16_to_cpu(scan_info->size), + &scan_info->bssid[2], scan_info); + + /* + * The wireless firmware may return invalid channel 0 and/or + * invalid rate if the AP emits zero length SSID ie. As this + * scan information is useless, ignore it + */ + if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) { + pr_debug("%s: invalid scan info\n", __func__); + continue; + } + + found = 0; + oldest = NULL; + list_for_each_entry(target, &wl->network_list, list) { + if (!compare_ether_addr(&target->hwinfo->bssid[2], + &scan_info->bssid[2])) { + found = 1; + pr_debug("%s: same BBS found scanned list\n", + __func__); + break; + } + if (!oldest || + (target->last_scanned < oldest->last_scanned)) + oldest = target; + } + + if (!found) { + /* not found in the list */ + if (list_empty(&wl->network_free_list)) { + /* expire oldest */ + target = oldest; + } else { + target = list_entry(wl->network_free_list.next, + struct gelic_wl_scan_info, + list); + } + } + + /* update the item */ + target->last_scanned = this_time; + target->valid = 1; + target->eurus_index = i; + kfree(target->hwinfo); + target->hwinfo = kzalloc(be16_to_cpu(scan_info->size), + GFP_KERNEL); + if (!target->hwinfo) { + pr_info("%s: kzalloc failed\n", __func__); + continue; + } + /* copy hw scan info */ + memcpy(target->hwinfo, scan_info, scan_info->size); + target->essid_len = strnlen(scan_info->essid, + sizeof(scan_info->essid)); + target->rate_len = 0; + for (r = 0; r < 12; r++) + if (scan_info->rate[r]) + target->rate_len++; + if (8 < target->rate_len) + pr_info("%s: AP returns %d rates\n", __func__, + target->rate_len); + target->rate_ext_len = 0; + for (r = 0; r < 16; r++) + if (scan_info->ext_rate[r]) + target->rate_ext_len++; + list_move_tail(&target->list, &wl->network_list); + } + memset(&data, 0, sizeof(data)); + wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data, + NULL); +out: + free_page((unsigned long)buf); + complete(&wl->scan_done); + mutex_unlock(&wl->scan_lock); + pr_debug("%s:end\n", __func__); +} + +/* + * Select an appropriate bss from current scan list regarding + * current settings from userspace. + * The caller must hold wl->scan_lock, + * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST + */ +static void update_best(struct gelic_wl_scan_info **best, + struct gelic_wl_scan_info *candid, + int *best_weight, + int *weight) +{ + if (*best_weight < ++(*weight)) { + *best_weight = *weight; + *best = candid; + } +} + +static +struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl) +{ + struct gelic_wl_scan_info *scan_info; + struct gelic_wl_scan_info *best_bss; + int weight, best_weight; + u16 security; + + pr_debug("%s: <-\n", __func__); + + best_bss = NULL; + best_weight = 0; + + list_for_each_entry(scan_info, &wl->network_list, list) { + pr_debug("%s: station %p\n", __func__, scan_info); + + if (!scan_info->valid) { + pr_debug("%s: station invalid\n", __func__); + continue; + } + + /* If bss specified, check it only */ + if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) { + if (!compare_ether_addr(&scan_info->hwinfo->bssid[2], + wl->bssid)) { + best_bss = scan_info; + pr_debug("%s: bssid matched\n", __func__); + break; + } else { + pr_debug("%s: bssid unmached\n", __func__); + continue; + } + } + + weight = 0; + + /* security */ + security = be16_to_cpu(scan_info->hwinfo->security) & + GELIC_EURUS_SCAN_SEC_MASK; + if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) { + if (security == GELIC_EURUS_SCAN_SEC_WPA2) + update_best(&best_bss, scan_info, + &best_weight, &weight); + else + continue; + } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) { + if (security == GELIC_EURUS_SCAN_SEC_WPA) + update_best(&best_bss, scan_info, + &best_weight, &weight); + else + continue; + } else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE && + wl->group_cipher_method == GELIC_WL_CIPHER_WEP) { + if (security == GELIC_EURUS_SCAN_SEC_WEP) + update_best(&best_bss, scan_info, + &best_weight, &weight); + else + continue; + } + + /* If ESSID is set, check it */ + if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) { + if ((scan_info->essid_len == wl->essid_len) && + !strncmp(wl->essid, + scan_info->hwinfo->essid, + scan_info->essid_len)) + update_best(&best_bss, scan_info, + &best_weight, &weight); + else + continue; + } + } + +#ifdef DEBUG + pr_debug("%s: -> bss=%p\n", __func__, best_bss); + if (best_bss) { + pr_debug("%s:addr=%pM\n", __func__, + &best_bss->hwinfo->bssid[2]); + } +#endif + return best_bss; +} + +/* + * Setup WEP configuration to the chip + * The caller must hold wl->scan_lock, + * and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST + */ +static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl) +{ + unsigned int i; + struct gelic_eurus_wep_cfg *wep; + struct gelic_eurus_cmd *cmd; + int wep104 = 0; + int have_key = 0; + int ret = 0; + + pr_debug("%s: <-\n", __func__); + /* we can assume no one should uses the buffer */ + wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL); + if (!wep) + return -ENOMEM; + + memset(wep, 0, sizeof(*wep)); + + if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) { + pr_debug("%s: WEP mode\n", __func__); + for (i = 0; i < GELIC_WEP_KEYS; i++) { + if (!test_bit(i, &wl->key_enabled)) + continue; + + pr_debug("%s: key#%d enabled\n", __func__, i); + have_key = 1; + if (wl->key_len[i] == 13) + wep104 = 1; + else if (wl->key_len[i] != 5) { + pr_info("%s: wrong wep key[%d]=%d\n", + __func__, i, wl->key_len[i]); + ret = -EINVAL; + goto out; + } + memcpy(wep->key[i], wl->key[i], wl->key_len[i]); + } + + if (!have_key) { + pr_info("%s: all wep key disabled\n", __func__); + ret = -EINVAL; + goto out; + } + + if (wep104) { + pr_debug("%s: 104bit key\n", __func__); + wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT); + } else { + pr_debug("%s: 40bit key\n", __func__); + wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT); + } + } else { + pr_debug("%s: NO encryption\n", __func__); + wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE); + } + + /* issue wep setup */ + cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG, + wep, sizeof(*wep)); + if (!cmd) + ret = -ENOMEM; + else if (cmd->status || cmd->cmd_status) + ret = -ENXIO; + + kfree(cmd); +out: + free_page((unsigned long)wep); + pr_debug("%s: ->\n", __func__); + return ret; +} + +#ifdef DEBUG +static const char *wpasecstr(enum gelic_eurus_wpa_security sec) +{ + switch (sec) { + case GELIC_EURUS_WPA_SEC_NONE: + return "NONE"; + break; + case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP: + return "WPA_TKIP_TKIP"; + break; + case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES: + return "WPA_TKIP_AES"; + break; + case GELIC_EURUS_WPA_SEC_WPA_AES_AES: + return "WPA_AES_AES"; + break; + case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP: + return "WPA2_TKIP_TKIP"; + break; + case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES: + return "WPA2_TKIP_AES"; + break; + case GELIC_EURUS_WPA_SEC_WPA2_AES_AES: + return "WPA2_AES_AES"; + break; + } + return ""; +}; +#endif + +static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl) +{ + struct gelic_eurus_wpa_cfg *wpa; + struct gelic_eurus_cmd *cmd; + u16 security; + int ret = 0; + + pr_debug("%s: <-\n", __func__); + /* we can assume no one should uses the buffer */ + wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL); + if (!wpa) + return -ENOMEM; + + memset(wpa, 0, sizeof(*wpa)); + + if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat)) + pr_info("%s: PSK not configured yet\n", __func__); + + /* copy key */ + memcpy(wpa->psk, wl->psk, wl->psk_len); + + /* set security level */ + if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) { + if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) { + security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES; + } else { + if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES && + precise_ie()) + security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES; + else + security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP; + } + } else { + if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) { + security = GELIC_EURUS_WPA_SEC_WPA_AES_AES; + } else { + if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES && + precise_ie()) + security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES; + else + security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP; + } + } + wpa->security = cpu_to_be16(security); + + /* PSK type */ + wpa->psk_type = cpu_to_be16(wl->psk_type); +#ifdef DEBUG + pr_debug("%s: sec=%s psktype=%s\n", __func__, + wpasecstr(wpa->security), + (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ? + "BIN" : "passphrase"); +#if 0 + /* + * don't enable here if you plan to submit + * the debug log because this dumps your precious + * passphrase/key. + */ + pr_debug("%s: psk=%s\n", __func__, + (wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ? + "N/A" : wpa->psk); +#endif +#endif + /* issue wpa setup */ + cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG, + wpa, sizeof(*wpa)); + if (!cmd) + ret = -ENOMEM; + else if (cmd->status || cmd->cmd_status) + ret = -ENXIO; + kfree(cmd); + free_page((unsigned long)wpa); + pr_debug("%s: --> %d\n", __func__, ret); + return ret; +} + +/* + * Start association. caller must hold assoc_stat_lock + */ +static int gelic_wl_associate_bss(struct gelic_wl_info *wl, + struct gelic_wl_scan_info *bss) +{ + struct gelic_eurus_cmd *cmd; + struct gelic_eurus_common_cfg *common; + int ret = 0; + unsigned long rc; + + pr_debug("%s: <-\n", __func__); + + /* do common config */ + common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL); + if (!common) + return -ENOMEM; + + memset(common, 0, sizeof(*common)); + common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA); + common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG); + + common->scan_index = cpu_to_be16(bss->eurus_index); + switch (wl->auth_method) { + case GELIC_EURUS_AUTH_OPEN: + common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN); + break; + case GELIC_EURUS_AUTH_SHARED: + common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED); + break; + } + +#ifdef DEBUG + scan_list_dump(wl); +#endif + pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__, + be16_to_cpu(common->scan_index), + be16_to_cpu(common->bss_type), + be16_to_cpu(common->auth_method)); + + cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG, + common, sizeof(*common)); + if (!cmd || cmd->status || cmd->cmd_status) { + ret = -ENOMEM; + kfree(cmd); + goto out; + } + kfree(cmd); + + /* WEP/WPA */ + switch (wl->wpa_level) { + case GELIC_WL_WPA_LEVEL_NONE: + /* If WEP or no security, setup WEP config */ + ret = gelic_wl_do_wep_setup(wl); + break; + case GELIC_WL_WPA_LEVEL_WPA: + case GELIC_WL_WPA_LEVEL_WPA2: + ret = gelic_wl_do_wpa_setup(wl); + break; + } + + if (ret) { + pr_debug("%s: WEP/WPA setup failed %d\n", __func__, + ret); + ret = -EPERM; + gelic_wl_send_iwap_event(wl, NULL); + goto out; + } + + /* start association */ + init_completion(&wl->assoc_done); + wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING; + cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC, + NULL, 0); + if (!cmd || cmd->status || cmd->cmd_status) { + pr_debug("%s: assoc request failed\n", __func__); + wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN; + kfree(cmd); + ret = -ENOMEM; + gelic_wl_send_iwap_event(wl, NULL); + goto out; + } + kfree(cmd); + + /* wait for connected event */ + rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/ + + if (!rc) { + /* timeouted. Maybe key or cyrpt mode is wrong */ + pr_info("%s: connect timeout\n", __func__); + cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, + NULL, 0); + kfree(cmd); + wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN; + gelic_wl_send_iwap_event(wl, NULL); + ret = -ENXIO; + } else { + wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED; + /* copy bssid */ + memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN); + + /* send connect event */ + gelic_wl_send_iwap_event(wl, wl->active_bssid); + pr_info("%s: connected\n", __func__); + } +out: + free_page((unsigned long)common); + pr_debug("%s: ->\n", __func__); + return ret; +} + +/* + * connected event + */ +static void gelic_wl_connected_event(struct gelic_wl_info *wl, + u64 event) +{ + u64 desired_event = 0; + + switch (wl->wpa_level) { + case GELIC_WL_WPA_LEVEL_NONE: + desired_event = GELIC_LV1_WL_EVENT_CONNECTED; + break; + case GELIC_WL_WPA_LEVEL_WPA: + case GELIC_WL_WPA_LEVEL_WPA2: + desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED; + break; + } + + if (desired_event == event) { + pr_debug("%s: completed\n", __func__); + complete(&wl->assoc_done); + netif_carrier_on(port_to_netdev(wl_port(wl))); + } else + pr_debug("%s: event %#llx under wpa\n", + __func__, event); +} + +/* + * disconnect event + */ +static void gelic_wl_disconnect_event(struct gelic_wl_info *wl, + u64 event) +{ + struct gelic_eurus_cmd *cmd; + int lock; + + /* + * If we fall here in the middle of association, + * associate_bss() should be waiting for complation of + * wl->assoc_done. + * As it waits with timeout, just leave assoc_done + * uncompleted, then it terminates with timeout + */ + if (!mutex_trylock(&wl->assoc_stat_lock)) { + pr_debug("%s: already locked\n", __func__); + lock = 0; + } else { + pr_debug("%s: obtain lock\n", __func__); + lock = 1; + } + + cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0); + kfree(cmd); + + /* send disconnected event to the supplicant */ + if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) + gelic_wl_send_iwap_event(wl, NULL); + + wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN; + netif_carrier_off(port_to_netdev(wl_port(wl))); + + if (lock) + mutex_unlock(&wl->assoc_stat_lock); +} +/* + * event worker + */ +#ifdef DEBUG +static const char *eventstr(enum gelic_lv1_wl_event event) +{ + static char buf[32]; + char *ret; + if (event & GELIC_LV1_WL_EVENT_DEVICE_READY) + ret = "EURUS_READY"; + else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED) + ret = "SCAN_COMPLETED"; + else if (event & GELIC_LV1_WL_EVENT_DEAUTH) + ret = "DEAUTH"; + else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST) + ret = "BEACON_LOST"; + else if (event & GELIC_LV1_WL_EVENT_CONNECTED) + ret = "CONNECTED"; + else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED) + ret = "WPA_CONNECTED"; + else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR) + ret = "WPA_ERROR"; + else { + sprintf(buf, "Unknown(%#x)", event); + ret = buf; + } + return ret; +} +#else +static const char *eventstr(enum gelic_lv1_wl_event event) +{ + return NULL; +} +#endif +static void gelic_wl_event_worker(struct work_struct *work) +{ + struct gelic_wl_info *wl; + struct gelic_port *port; + u64 event, tmp; + int status; + + pr_debug("%s:start\n", __func__); + wl = container_of(work, struct gelic_wl_info, event_work.work); + port = wl_port(wl); + while (1) { + status = lv1_net_control(bus_id(port->card), dev_id(port->card), + GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0, + &event, &tmp); + if (status) { + if (status != LV1_NO_ENTRY) + pr_debug("%s:wlan event failed %d\n", + __func__, status); + /* got all events */ + pr_debug("%s:end\n", __func__); + return; + } + pr_debug("%s: event=%s\n", __func__, eventstr(event)); + switch (event) { + case GELIC_LV1_WL_EVENT_SCAN_COMPLETED: + gelic_wl_scan_complete_event(wl); + break; + case GELIC_LV1_WL_EVENT_BEACON_LOST: + case GELIC_LV1_WL_EVENT_DEAUTH: + gelic_wl_disconnect_event(wl, event); + break; + case GELIC_LV1_WL_EVENT_CONNECTED: + case GELIC_LV1_WL_EVENT_WPA_CONNECTED: + gelic_wl_connected_event(wl, event); + break; + default: + break; + } + } /* while */ +} +/* + * association worker + */ +static void gelic_wl_assoc_worker(struct work_struct *work) +{ + struct gelic_wl_info *wl; + + struct gelic_wl_scan_info *best_bss; + int ret; + unsigned long irqflag; + u8 *essid; + size_t essid_len; + + wl = container_of(work, struct gelic_wl_info, assoc_work.work); + + mutex_lock(&wl->assoc_stat_lock); + + if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN) + goto out; + + spin_lock_irqsave(&wl->lock, irqflag); + if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) { + pr_debug("%s: assoc ESSID configured %s\n", __func__, + wl->essid); + essid = wl->essid; + essid_len = wl->essid_len; + } else { + essid = NULL; + essid_len = 0; + } + spin_unlock_irqrestore(&wl->lock, irqflag); + + ret = gelic_wl_start_scan(wl, 0, essid, essid_len); + if (ret == -ERESTARTSYS) { + pr_debug("%s: scan start failed association\n", __func__); + schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/ + goto out; + } else if (ret) { + pr_info("%s: scan prerequisite failed\n", __func__); + goto out; + } + + /* + * Wait for bss scan completion + * If we have scan list already, gelic_wl_start_scan() + * returns OK and raises the complete. Thus, + * it's ok to wait unconditionally here + */ + wait_for_completion(&wl->scan_done); + + pr_debug("%s: scan done\n", __func__); + mutex_lock(&wl->scan_lock); + if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) { + gelic_wl_send_iwap_event(wl, NULL); + pr_info("%s: no scan list. association failed\n", __func__); + goto scan_lock_out; + } + + /* find best matching bss */ + best_bss = gelic_wl_find_best_bss(wl); + if (!best_bss) { + gelic_wl_send_iwap_event(wl, NULL); + pr_info("%s: no bss matched. association failed\n", __func__); + goto scan_lock_out; + } + + /* ok, do association */ + ret = gelic_wl_associate_bss(wl, best_bss); + if (ret) + pr_info("%s: association failed %d\n", __func__, ret); +scan_lock_out: + mutex_unlock(&wl->scan_lock); +out: + mutex_unlock(&wl->assoc_stat_lock); +} +/* + * Interrupt handler + * Called from the ethernet interrupt handler + * Processes wireless specific virtual interrupts only + */ +void gelic_wl_interrupt(struct net_device *netdev, u64 status) +{ + struct gelic_wl_info *wl = port_wl(netdev_priv(netdev)); + + if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) { + pr_debug("%s:cmd complete\n", __func__); + complete(&wl->cmd_done_intr); + } + + if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) { + pr_debug("%s:event received\n", __func__); + queue_delayed_work(wl->event_queue, &wl->event_work, 0); + } +} + +/* + * driver helpers + */ +static const iw_handler gelic_wl_wext_handler[] = +{ + IW_HANDLER(SIOCGIWNAME, gelic_wl_get_name), + IW_HANDLER(SIOCGIWRANGE, gelic_wl_get_range), + IW_HANDLER(SIOCSIWSCAN, gelic_wl_set_scan), + IW_HANDLER(SIOCGIWSCAN, gelic_wl_get_scan), + IW_HANDLER(SIOCSIWAUTH, gelic_wl_set_auth), + IW_HANDLER(SIOCGIWAUTH, gelic_wl_get_auth), + IW_HANDLER(SIOCSIWESSID, gelic_wl_set_essid), + IW_HANDLER(SIOCGIWESSID, gelic_wl_get_essid), + IW_HANDLER(SIOCSIWENCODE, gelic_wl_set_encode), + IW_HANDLER(SIOCGIWENCODE, gelic_wl_get_encode), + IW_HANDLER(SIOCSIWAP, gelic_wl_set_ap), + IW_HANDLER(SIOCGIWAP, gelic_wl_get_ap), + IW_HANDLER(SIOCSIWENCODEEXT, gelic_wl_set_encodeext), + IW_HANDLER(SIOCGIWENCODEEXT, gelic_wl_get_encodeext), + IW_HANDLER(SIOCSIWMODE, gelic_wl_set_mode), + IW_HANDLER(SIOCGIWMODE, gelic_wl_get_mode), + IW_HANDLER(SIOCGIWNICKN, gelic_wl_get_nick), +}; + +static const struct iw_handler_def gelic_wl_wext_handler_def = { + .num_standard = ARRAY_SIZE(gelic_wl_wext_handler), + .standard = gelic_wl_wext_handler, + .get_wireless_stats = gelic_wl_get_wireless_stats, +}; + +static struct net_device * __devinit gelic_wl_alloc(struct gelic_card *card) +{ + struct net_device *netdev; + struct gelic_port *port; + struct gelic_wl_info *wl; + unsigned int i; + + pr_debug("%s:start\n", __func__); + netdev = alloc_etherdev(sizeof(struct gelic_port) + + sizeof(struct gelic_wl_info)); + pr_debug("%s: netdev =%p card=%p\n", __func__, netdev, card); + if (!netdev) + return NULL; + + strcpy(netdev->name, "wlan%d"); + + port = netdev_priv(netdev); + port->netdev = netdev; + port->card = card; + port->type = GELIC_PORT_WIRELESS; + + wl = port_wl(port); + pr_debug("%s: wl=%p port=%p\n", __func__, wl, port); + + /* allocate scan list */ + wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) * + GELIC_WL_BSS_MAX_ENT, GFP_KERNEL); + + if (!wl->networks) + goto fail_bss; + + wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd"); + if (!wl->eurus_cmd_queue) + goto fail_cmd_workqueue; + + wl->event_queue = create_singlethread_workqueue("gelic_event"); + if (!wl->event_queue) + goto fail_event_workqueue; + + INIT_LIST_HEAD(&wl->network_free_list); + INIT_LIST_HEAD(&wl->network_list); + for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++) + list_add_tail(&wl->networks[i].list, + &wl->network_free_list); + init_completion(&wl->cmd_done_intr); + + INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker); + INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker); + mutex_init(&wl->scan_lock); + mutex_init(&wl->assoc_stat_lock); + + init_completion(&wl->scan_done); + /* for the case that no scan request is issued and stop() is called */ + complete(&wl->scan_done); + + spin_lock_init(&wl->lock); + + wl->scan_age = 5*HZ; /* FIXME */ + + /* buffer for receiving scanned list etc */ + BUILD_BUG_ON(PAGE_SIZE < + sizeof(struct gelic_eurus_scan_info) * + GELIC_EURUS_MAX_SCAN); + pr_debug("%s:end\n", __func__); + return netdev; + +fail_event_workqueue: + destroy_workqueue(wl->eurus_cmd_queue); +fail_cmd_workqueue: + kfree(wl->networks); +fail_bss: + free_netdev(netdev); + pr_debug("%s:end error\n", __func__); + return NULL; + +} + +static void gelic_wl_free(struct gelic_wl_info *wl) +{ + struct gelic_wl_scan_info *scan_info; + unsigned int i; + + pr_debug("%s: <-\n", __func__); + + pr_debug("%s: destroy queues\n", __func__); + destroy_workqueue(wl->eurus_cmd_queue); + destroy_workqueue(wl->event_queue); + + scan_info = wl->networks; + for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++) + kfree(scan_info->hwinfo); + kfree(wl->networks); + + free_netdev(port_to_netdev(wl_port(wl))); + + pr_debug("%s: ->\n", __func__); +} + +static int gelic_wl_try_associate(struct net_device *netdev) +{ + struct gelic_wl_info *wl = port_wl(netdev_priv(netdev)); + int ret = -1; + unsigned int i; + + pr_debug("%s: <-\n", __func__); + + /* check constraits for start association */ + /* for no access restriction AP */ + if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) { + if (test_bit(GELIC_WL_STAT_CONFIGURED, + &wl->stat)) + goto do_associate; + else { + pr_debug("%s: no wep, not configured\n", __func__); + return ret; + } + } + + /* for WEP, one of four keys should be set */ + if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) { + /* one of keys set */ + for (i = 0; i < GELIC_WEP_KEYS; i++) { + if (test_bit(i, &wl->key_enabled)) + goto do_associate; + } + pr_debug("%s: WEP, but no key specified\n", __func__); + return ret; + } + + /* for WPA[2], psk should be set */ + if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) || + (wl->group_cipher_method == GELIC_WL_CIPHER_AES)) { + if (test_bit(GELIC_WL_STAT_WPA_PSK_SET, + &wl->stat)) + goto do_associate; + else { + pr_debug("%s: AES/TKIP, but PSK not configured\n", + __func__); + return ret; + } + } + +do_associate: + ret = schedule_delayed_work(&wl->assoc_work, 0); + pr_debug("%s: start association work %d\n", __func__, ret); + return ret; +} + +/* + * netdev handlers + */ +static int gelic_wl_open(struct net_device *netdev) +{ + struct gelic_card *card = netdev_card(netdev); + + pr_debug("%s:->%p\n", __func__, netdev); + + gelic_card_up(card); + + /* try to associate */ + gelic_wl_try_associate(netdev); + + netif_start_queue(netdev); + + pr_debug("%s:<-\n", __func__); + return 0; +} + +/* + * reset state machine + */ +static int gelic_wl_reset_state(struct gelic_wl_info *wl) +{ + struct gelic_wl_scan_info *target; + struct gelic_wl_scan_info *tmp; + + /* empty scan list */ + list_for_each_entry_safe(target, tmp, &wl->network_list, list) { + list_move_tail(&target->list, &wl->network_free_list); + } + wl->scan_stat = GELIC_WL_SCAN_STAT_INIT; + + /* clear configuration */ + wl->auth_method = GELIC_EURUS_AUTH_OPEN; + wl->group_cipher_method = GELIC_WL_CIPHER_NONE; + wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE; + wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE; + + wl->key_enabled = 0; + wl->current_key = 0; + + wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE; + wl->psk_len = 0; + + wl->essid_len = 0; + memset(wl->essid, 0, sizeof(wl->essid)); + memset(wl->bssid, 0, sizeof(wl->bssid)); + memset(wl->active_bssid, 0, sizeof(wl->active_bssid)); + + wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN; + + memset(&wl->iwstat, 0, sizeof(wl->iwstat)); + /* all status bit clear */ + wl->stat = 0; + return 0; +} + +/* + * Tell eurus to terminate association + */ +static void gelic_wl_disconnect(struct net_device *netdev) +{ + struct gelic_port *port = netdev_priv(netdev); + struct gelic_wl_info *wl = port_wl(port); + struct gelic_eurus_cmd *cmd; + + /* + * If scann process is running on chip, + * further requests will be rejected + */ + if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) + wait_for_completion_timeout(&wl->scan_done, HZ); + + cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0); + kfree(cmd); + gelic_wl_send_iwap_event(wl, NULL); +}; + +static int gelic_wl_stop(struct net_device *netdev) +{ + struct gelic_port *port = netdev_priv(netdev); + struct gelic_wl_info *wl = port_wl(port); + struct gelic_card *card = netdev_card(netdev); + + pr_debug("%s:<-\n", __func__); + + /* + * Cancel pending association work. + * event work can run after netdev down + */ + cancel_delayed_work(&wl->assoc_work); + + if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) + gelic_wl_disconnect(netdev); + + /* reset our state machine */ + gelic_wl_reset_state(wl); + + netif_stop_queue(netdev); + + gelic_card_down(card); + + pr_debug("%s:->\n", __func__); + return 0; +} + +/* -- */ + +static const struct net_device_ops gelic_wl_netdevice_ops = { + .ndo_open = gelic_wl_open, + .ndo_stop = gelic_wl_stop, + .ndo_start_xmit = gelic_net_xmit, + .ndo_set_rx_mode = gelic_net_set_multi, + .ndo_change_mtu = gelic_net_change_mtu, + .ndo_tx_timeout = gelic_net_tx_timeout, + .ndo_set_mac_address = eth_mac_addr, + .ndo_validate_addr = eth_validate_addr, +#ifdef CONFIG_NET_POLL_CONTROLLER + .ndo_poll_controller = gelic_net_poll_controller, +#endif +}; + +static const struct ethtool_ops gelic_wl_ethtool_ops = { + .get_drvinfo = gelic_net_get_drvinfo, + .get_link = gelic_wl_get_link, +}; + +static void __devinit gelic_wl_setup_netdev_ops(struct net_device *netdev) +{ + struct gelic_wl_info *wl; + wl = port_wl(netdev_priv(netdev)); + BUG_ON(!wl); + netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT; + + netdev->ethtool_ops = &gelic_wl_ethtool_ops; + netdev->netdev_ops = &gelic_wl_netdevice_ops; + netdev->wireless_data = &wl->wireless_data; + netdev->wireless_handlers = &gelic_wl_wext_handler_def; +} + +/* + * driver probe/remove + */ +int __devinit gelic_wl_driver_probe(struct gelic_card *card) +{ + int ret; + struct net_device *netdev; + + pr_debug("%s:start\n", __func__); + + if (ps3_compare_firmware_version(1, 6, 0) < 0) + return 0; + if (!card->vlan[GELIC_PORT_WIRELESS].tx) + return 0; + + /* alloc netdevice for wireless */ + netdev = gelic_wl_alloc(card); + if (!netdev) + return -ENOMEM; + + /* setup net_device structure */ + SET_NETDEV_DEV(netdev, &card->dev->core); + gelic_wl_setup_netdev_ops(netdev); + + /* setup some of net_device and register it */ + ret = gelic_net_setup_netdev(netdev, card); + if (ret) + goto fail_setup; + card->netdev[GELIC_PORT_WIRELESS] = netdev; + + /* add enable wireless interrupt */ + card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED | + GELIC_CARD_WLAN_COMMAND_COMPLETED; + /* to allow wireless commands while both interfaces are down */ + gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED | + GELIC_CARD_WLAN_COMMAND_COMPLETED); + pr_debug("%s:end\n", __func__); + return 0; + +fail_setup: + gelic_wl_free(port_wl(netdev_port(netdev))); + + return ret; +} + +int gelic_wl_driver_remove(struct gelic_card *card) +{ + struct gelic_wl_info *wl; + struct net_device *netdev; + + pr_debug("%s:start\n", __func__); + + if (ps3_compare_firmware_version(1, 6, 0) < 0) + return 0; + if (!card->vlan[GELIC_PORT_WIRELESS].tx) + return 0; + + netdev = card->netdev[GELIC_PORT_WIRELESS]; + wl = port_wl(netdev_priv(netdev)); + + /* if the interface was not up, but associated */ + if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) + gelic_wl_disconnect(netdev); + + complete(&wl->cmd_done_intr); + + /* cancel all work queue */ + cancel_delayed_work(&wl->assoc_work); + cancel_delayed_work(&wl->event_work); + flush_workqueue(wl->eurus_cmd_queue); + flush_workqueue(wl->event_queue); + + unregister_netdev(netdev); + + /* disable wireless interrupt */ + pr_debug("%s: disable intr\n", __func__); + card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED | + GELIC_CARD_WLAN_COMMAND_COMPLETED); + /* free bss list, netdev*/ + gelic_wl_free(wl); + pr_debug("%s:end\n", __func__); + return 0; +} |