PS3: gelic: Add support for ESSID scan
This adds the support for ESSID scanning
Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/ps3_gelic_wireless.c b/drivers/net/ps3_gelic_wireless.c
index f5e5f13..aa963ac 100644
--- a/drivers/net/ps3_gelic_wireless.c
+++ b/drivers/net/ps3_gelic_wireless.c
@@ -45,7 +45,8 @@
#include "ps3_gelic_wireless.h"
-static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan);
+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);
/*
@@ -105,6 +106,7 @@
[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},
};
@@ -163,7 +165,9 @@
card = port_to_card(wl_port(wl));
if (cmd_info[cmd->cmd].pre_arg) {
- arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
+ arg1 = (cmd->buffer) ?
+ ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
+ 0;
arg2 = cmd->buf_size;
} else {
arg1 = 0;
@@ -360,6 +364,9 @@
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;
@@ -371,8 +378,18 @@
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;
- return gelic_wl_start_scan(wl, 1);
+ 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
@@ -1534,10 +1551,13 @@
/*
* scanning helpers
*/
-static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan)
+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))
@@ -1560,12 +1580,27 @@
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,
- NULL, 0);
+ buf, len);
if (!cmd || cmd->status || cmd->cmd_status) {
wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
complete(&wl->scan_done);
@@ -1574,6 +1609,7 @@
}
kfree(cmd);
out:
+ free_page((unsigned long)buf);
mutex_unlock(&wl->scan_lock);
pr_debug("%s: ->\n", __func__);
return ret;
@@ -2261,6 +2297,9 @@
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);
@@ -2269,7 +2308,19 @@
if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
goto out;
- ret = gelic_wl_start_scan(wl, 0);
+ 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*/