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iwmc3200wifi: handling wifi_if_ntfy responses

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When we're calling iwm_send_wifi_if_cmd() with the resp flag set, we're
currently waiting on the mlme queue, waiting for some flags here and there to
show up.
This patch adds a wifi_ntfy bitmap, and when we're sending a wifi_if command
expecting an answers, we wait synchronously for it to show up, on a dedicated
queue. The wifi_ntfy bit is set when we receive the corresponding answer.

Signed-off-by: Samuel Ortiz <samuel.ortiz@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Samuel Ortiz 2009-06-15 21:59:51 +02:00 committed by John W. Linville
parent 0c5553b139
commit a70742f167
5 changed files with 31 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
drivers/net/wireless/iwmc3200wifi/commands.c
View File

@ -70,14 +70,28 @@ static int iwm_send_lmac_ptrough_cmd(struct iwm_priv *iwm,
int iwm_send_wifi_if_cmd(struct iwm_priv *iwm, void *payload, u16 payload_size,
bool resp)
{
struct iwm_umac_wifi_if *hdr = (struct iwm_umac_wifi_if *)payload;
struct iwm_udma_wifi_cmd udma_cmd = UDMA_UMAC_INIT;
struct iwm_umac_cmd umac_cmd;
int ret;
u8 oid = hdr->oid;
umac_cmd.id = UMAC_CMD_OPCODE_WIFI_IF_WRAPPER;
umac_cmd.resp = resp;
return iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
payload, payload_size);
ret = iwm_hal_send_umac_cmd(iwm, &udma_cmd, &umac_cmd,
payload, payload_size);
if (resp) {
ret = wait_event_interruptible_timeout(iwm->wifi_ntfy_queue,
test_and_clear_bit(oid, &iwm->wifi_ntfy[0]),
3 * HZ);
if (!ret)
ret = -EBUSY;
}
return ret;
}
static struct coex_event iwm_sta_xor_prio_tbl[COEX_EVENTS_NUM] =
@ -746,14 +760,6 @@ int iwm_send_mlme_profile(struct iwm_priv *iwm)
return ret;
}
/* Wait for the profile to be active */
ret = wait_event_interruptible_timeout(iwm->mlme_queue,
iwm->umac_profile_active == 1,
3 * HZ);
if (!ret)
return -EBUSY;
for (i = 0; i < IWM_NUM_KEYS; i++)
if (iwm->keys[i].in_use) {
int default_key = 0;
@ -778,8 +784,8 @@ int iwm_send_mlme_profile(struct iwm_priv *iwm)
int iwm_invalidate_mlme_profile(struct iwm_priv *iwm)
{
int ret;
struct iwm_umac_invalidate_profile invalid;
int ret;
invalid.hdr.oid = UMAC_WIFI_IF_CMD_INVALIDATE_PROFILE;
invalid.hdr.buf_size =
@ -793,8 +799,7 @@ int iwm_invalidate_mlme_profile(struct iwm_priv *iwm)
return ret;
ret = wait_event_interruptible_timeout(iwm->mlme_queue,
(iwm->umac_profile_active == 0),
2 * HZ);
(iwm->umac_profile_active == 0), 2 * HZ);
if (!ret)
return -EBUSY;

3
drivers/net/wireless/iwmc3200wifi/iwm.h
View File

@ -278,6 +278,9 @@ struct iwm_priv {
struct iwm_key keys[IWM_NUM_KEYS];
struct iwm_key *default_key;
DECLARE_BITMAP(wifi_ntfy, WIFI_IF_NTFY_MAX);
wait_queue_head_t wifi_ntfy_queue;
wait_queue_head_t mlme_queue;
struct iw_statistics wstats;

1
drivers/net/wireless/iwmc3200wifi/main.c
View File

@ -191,6 +191,7 @@ int iwm_priv_init(struct iwm_priv *iwm)
INIT_LIST_HEAD(&iwm->pending_notif);
init_waitqueue_head(&iwm->notif_queue);
init_waitqueue_head(&iwm->nonwifi_queue);
init_waitqueue_head(&iwm->wifi_ntfy_queue);
init_waitqueue_head(&iwm->mlme_queue);
memcpy(&iwm->conf, &def_iwm_conf, sizeof(struct iwm_conf));
spin_lock_init(&iwm->tx_credit.lock);

9
drivers/net/wireless/iwmc3200wifi/rx.c
View File

@ -993,12 +993,17 @@ static int iwm_ntf_wifi_if_wrapper(struct iwm_priv *iwm, u8 *buf,
(struct iwm_umac_wifi_if *)cmd->buf.payload;
IWM_DBG_NTF(iwm, DBG, "WIFI_IF_WRAPPER cmd is delivered to UMAC: "
"oid is %d\n", hdr->oid);
"oid is 0x%x\n", hdr->oid);
if (hdr->oid <= WIFI_IF_NTFY_MAX) {
set_bit(hdr->oid, &iwm->wifi_ntfy[0]);
wake_up_interruptible(&iwm->wifi_ntfy_queue);
} else
return -EINVAL;
switch (hdr->oid) {
case UMAC_WIFI_IF_CMD_SET_PROFILE:
iwm->umac_profile_active = 1;
wake_up_interruptible(&iwm->mlme_queue);
break;
default:
break;

2
drivers/net/wireless/iwmc3200wifi/umac.h
View File

@ -495,6 +495,8 @@ struct iwm_fw_alive_hdr {
#define WIFI_DBG_IF_NTFY_COEX_HANDLE_ENVELOP 0xE8
#define WIFI_DBG_IF_NTFY_COEX_HANDLE_RELEASE_ENVELOP 0xE9
#define WIFI_IF_NTFY_MAX 0xff
/* Notification structures */
struct iwm_umac_notif_wifi_if {
struct iwm_umac_wifi_in_hdr hdr;