[PATCH 133/48] libertas: convert SUBSCRIBE_EVENT to a direct command
David Woodhouse
dwmw2 at infradead.org
Wed Dec 19 10:33:31 EST 2007
Date: Tue, 18 Dec 2007 02:01:37 -0500
Signed-off-by: David Woodhouse <dwmw2 at infradead.org>
---
drivers/net/wireless/libertas/cmd.c | 52 +------
drivers/net/wireless/libertas/cmdresp.c | 22 ---
drivers/net/wireless/libertas/debugfs.c | 282 ++++++++++++++-----------------
drivers/net/wireless/libertas/hostcmd.h | 5 +-
4 files changed, 135 insertions(+), 226 deletions(-)
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c
index 5d2c928..4d06dec 100644
--- a/drivers/net/wireless/libertas/cmd.c
+++ b/drivers/net/wireless/libertas/cmd.c
@@ -327,53 +327,6 @@ int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
return ret;
}
-
-static ssize_t lbs_tlv_size(const u8 *tlv, u16 size)
-{
- ssize_t pos = 0;
- struct mrvlietypesheader *tlv_h;
- while (pos < size) {
- u16 length;
- tlv_h = (struct mrvlietypesheader *) tlv;
- if (tlv_h->len == 0)
- return pos;
- length = le16_to_cpu(tlv_h->len) +
- sizeof(struct mrvlietypesheader);
- pos += length;
- tlv += length;
- }
- return pos;
-}
-
-
-static void lbs_cmd_802_11_subscribe_event(struct lbs_private *priv,
- struct cmd_ds_command *cmd, u16 cmd_action,
- void *pdata_buf)
-{
- struct cmd_ds_802_11_subscribe_event *events =
- (struct cmd_ds_802_11_subscribe_event *) pdata_buf;
-
- /* pdata_buf points to a struct cmd_ds_802_11_subscribe_event and room
- * for various Marvell TLVs */
-
- lbs_deb_enter(LBS_DEB_CMD);
-
- cmd->size = cpu_to_le16(sizeof(*events)
- - sizeof(events->tlv)
- + S_DS_GEN);
- cmd->params.subscribe_event.action = cpu_to_le16(cmd_action);
- if (cmd_action == CMD_ACT_GET) {
- cmd->params.subscribe_event.events = 0;
- } else {
- ssize_t sz = lbs_tlv_size(events->tlv, sizeof(events->tlv));
- cmd->size = cpu_to_le16(le16_to_cpu(cmd->size) + sz);
- cmd->params.subscribe_event.events = events->events;
- memcpy(cmd->params.subscribe_event.tlv, events->tlv, sz);
- }
-
- lbs_deb_leave(LBS_DEB_CMD);
-}
-
static void set_one_wpa_key(struct MrvlIEtype_keyParamSet * pkeyparamset,
struct enc_key * pkey)
{
@@ -1545,10 +1498,7 @@ int lbs_prepare_and_send_command(struct lbs_private *priv,
ret = 0;
break;
}
- case CMD_802_11_SUBSCRIBE_EVENT:
- lbs_cmd_802_11_subscribe_event(priv, cmdptr,
- cmd_action, pdata_buf);
- break;
+
case CMD_802_11_PWR_CFG:
cmdptr->command = cpu_to_le16(CMD_802_11_PWR_CFG);
cmdptr->size =
diff --git a/drivers/net/wireless/libertas/cmdresp.c b/drivers/net/wireless/libertas/cmdresp.c
index 8b71926..159216a 100644
--- a/drivers/net/wireless/libertas/cmdresp.c
+++ b/drivers/net/wireless/libertas/cmdresp.c
@@ -389,25 +389,6 @@ static int lbs_ret_802_11_bcn_ctrl(struct lbs_private * priv,
return 0;
}
-static int lbs_ret_802_11_subscribe_event(struct lbs_private *priv,
- struct cmd_ds_command *resp)
-{
- struct cmd_ds_802_11_subscribe_event *cmd_event =
- &resp->params.subscribe_event;
- struct cmd_ds_802_11_subscribe_event *dst_event =
- (void *)priv->cur_cmd->callback_arg;
-
- lbs_deb_enter(LBS_DEB_CMD);
-
- if (dst_event->action == cpu_to_le16(CMD_ACT_GET)) {
- dst_event->events = cmd_event->events;
- memcpy(dst_event->tlv, cmd_event->tlv, sizeof(dst_event->tlv));
- }
-
- lbs_deb_leave(LBS_DEB_CMD);
- return 0;
-}
-
static inline int handle_cmd_response(struct lbs_private *priv,
unsigned long dummy,
struct cmd_header *cmd_response)
@@ -518,9 +499,6 @@ static inline int handle_cmd_response(struct lbs_private *priv,
sizeof(struct cmd_ds_802_11_led_ctrl));
spin_unlock_irqrestore(&priv->driver_lock, flags);
break;
- case CMD_RET(CMD_802_11_SUBSCRIBE_EVENT):
- ret = lbs_ret_802_11_subscribe_event(priv, resp);
- break;
case CMD_RET(CMD_802_11_PWR_CFG):
spin_lock_irqsave(&priv->driver_lock, flags);
diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c
index fa6c594..2174717 100644
--- a/drivers/net/wireless/libertas/debugfs.c
+++ b/drivers/net/wireless/libertas/debugfs.c
@@ -346,20 +346,19 @@ static ssize_t lbs_setuserscan(struct file *file,
* and returns a pointer to the first data byte of the TLV, or to NULL
* if the TLV hasn't been found.
*/
-static void *lbs_tlv_find(u16 tlv_type, const u8 *tlv, u16 size)
+static void *lbs_tlv_find(uint16_t tlv_type, const uint8_t *tlv, uint16_t size)
{
- __le16 le_type = cpu_to_le16(tlv_type);
- ssize_t pos = 0;
struct mrvlietypesheader *tlv_h;
+ uint16_t length;
+ ssize_t pos = 0;
+
while (pos < size) {
- u16 length;
tlv_h = (struct mrvlietypesheader *) tlv;
- if (tlv_h->type == le_type)
- return tlv_h;
- if (tlv_h->len == 0)
+ if (!tlv_h->len)
return NULL;
- length = le16_to_cpu(tlv_h->len) +
- sizeof(struct mrvlietypesheader);
+ if (tlv_h->type == cpu_to_le16(tlv_type))
+ return tlv_h;
+ length = le16_to_cpu(tlv_h->len) + sizeof(*tlv_h);
pos += length;
tlv += length;
}
@@ -367,100 +366,100 @@ static void *lbs_tlv_find(u16 tlv_type, const u8 *tlv, u16 size)
}
-/*
- * This just gets the bitmap of currently subscribed events. Used when
- * adding an additonal event subscription.
- */
-static u16 lbs_get_events_bitmap(struct lbs_private *priv)
-{
- ssize_t res;
-
- struct cmd_ds_802_11_subscribe_event *events = kzalloc(
- sizeof(struct cmd_ds_802_11_subscribe_event),
- GFP_KERNEL);
-
- res = lbs_prepare_and_send_command(priv,
- CMD_802_11_SUBSCRIBE_EVENT, CMD_ACT_GET,
- CMD_OPTION_WAITFORRSP, 0, events);
-
- if (res) {
- kfree(events);
- return 0;
- }
- return le16_to_cpu(events->events);
-}
-
-
-static ssize_t lbs_threshold_read(
- u16 tlv_type, u16 event_mask,
- struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
+static ssize_t lbs_threshold_read(uint16_t tlv_type, uint16_t event_mask,
+ struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
{
+ struct cmd_ds_802_11_subscribe_event *subscribed;
+ struct mrvlietypes_thresholds *got;
struct lbs_private *priv = file->private_data;
- ssize_t res = 0;
+ ssize_t ret = 0;
size_t pos = 0;
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (char *)addr;
+ char *buf;
u8 value;
u8 freq;
int events = 0;
- struct cmd_ds_802_11_subscribe_event *subscribed = kzalloc(
- sizeof(struct cmd_ds_802_11_subscribe_event),
- GFP_KERNEL);
- struct mrvlietypes_thresholds *got;
+ buf = (char *)get_zeroed_page(GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
- res = lbs_prepare_and_send_command(priv,
- CMD_802_11_SUBSCRIBE_EVENT, CMD_ACT_GET,
- CMD_OPTION_WAITFORRSP, 0, subscribed);
- if (res) {
- kfree(subscribed);
- return res;
+ subscribed = kzalloc(sizeof(*subscribed), GFP_KERNEL);
+ if (!subscribed) {
+ ret = -ENOMEM;
+ goto out_page;
}
+ subscribed->hdr.size = cpu_to_le16(sizeof(*subscribed));
+ subscribed->action = cpu_to_le16(CMD_ACT_GET);
+
+ ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, subscribed);
+ if (ret)
+ goto out_cmd;
+
got = lbs_tlv_find(tlv_type, subscribed->tlv, sizeof(subscribed->tlv));
if (got) {
value = got->value;
freq = got->freq;
events = le16_to_cpu(subscribed->events);
- }
- kfree(subscribed);
- if (got)
pos += snprintf(buf, len, "%d %d %d\n", value, freq,
- !!(events & event_mask));
+ !!(events & event_mask));
+ }
- res = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
+ ret = simple_read_from_buffer(userbuf, count, ppos, buf, pos);
- free_page(addr);
- return res;
+ out_cmd:
+ kfree(subscribed);
+
+ out_page:
+ free_page((unsigned long)buf);
+ return ret;
}
-static ssize_t lbs_threshold_write(
- u16 tlv_type, u16 event_mask,
- struct file *file,
- const char __user *userbuf,
- size_t count, loff_t *ppos)
+static ssize_t lbs_threshold_write(uint16_t tlv_type, uint16_t event_mask,
+ struct file *file,
+ const char __user *userbuf, size_t count,
+ loff_t *ppos)
{
- struct lbs_private *priv = file->private_data;
- ssize_t res, buf_size;
- int value, freq, curr_mask, new_mask;
- unsigned long addr = get_zeroed_page(GFP_KERNEL);
- char *buf = (char *)addr;
struct cmd_ds_802_11_subscribe_event *events;
+ struct mrvlietypes_thresholds *tlv;
+ struct lbs_private *priv = file->private_data;
+ ssize_t buf_size;
+ int value, freq, new_mask;
+ uint16_t curr_mask;
+ char *buf;
+ int ret;
+
+ buf = (char *)get_zeroed_page(GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
buf_size = min(count, len - 1);
if (copy_from_user(buf, userbuf, buf_size)) {
- res = -EFAULT;
- goto out_unlock;
+ ret = -EFAULT;
+ goto out_page;
}
- res = sscanf(buf, "%d %d %d", &value, &freq, &new_mask);
- if (res != 3) {
- res = -EFAULT;
- goto out_unlock;
+ ret = sscanf(buf, "%d %d %d", &value, &freq, &new_mask);
+ if (ret != 3) {
+ ret = -EINVAL;
+ goto out_page;
}
- curr_mask = lbs_get_events_bitmap(priv);
+ events = kzalloc(sizeof(*events), GFP_KERNEL);
+ if (!events) {
+ ret = -ENOMEM;
+ goto out_page;
+ }
+
+ events->hdr.size = cpu_to_le16(sizeof(*events));
+ events->action = cpu_to_le16(CMD_ACT_GET);
+
+ ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
+ if (ret)
+ goto out_events;
+
+ curr_mask = le16_to_cpu(events->events);
if (new_mask)
new_mask = curr_mask | event_mask;
@@ -468,147 +467,128 @@ static ssize_t lbs_threshold_write(
new_mask = curr_mask & ~event_mask;
/* Now everything is set and we can send stuff down to the firmware */
- events = kzalloc(
- sizeof(struct cmd_ds_802_11_subscribe_event),
- GFP_KERNEL);
- if (events) {
- struct mrvlietypes_thresholds *tlv =
- (struct mrvlietypes_thresholds *) events->tlv;
- events->action = cpu_to_le16(CMD_ACT_SET);
- events->events = cpu_to_le16(new_mask);
- tlv->header.type = cpu_to_le16(tlv_type);
- tlv->header.len = cpu_to_le16(
- sizeof(struct mrvlietypes_thresholds) -
- sizeof(struct mrvlietypesheader));
- tlv->value = value;
- if (tlv_type != TLV_TYPE_BCNMISS)
- tlv->freq = freq;
- lbs_prepare_and_send_command(priv,
- CMD_802_11_SUBSCRIBE_EVENT, CMD_ACT_SET,
- CMD_OPTION_WAITFORRSP, 0, events);
- kfree(events);
- }
- res = count;
-out_unlock:
- free_page(addr);
- return res;
+ tlv = (void *)events->tlv;
+
+ events->action = cpu_to_le16(CMD_ACT_SET);
+ events->events = cpu_to_le16(new_mask);
+ tlv->header.type = cpu_to_le16(tlv_type);
+ tlv->header.len = cpu_to_le16(sizeof(*tlv) - sizeof(tlv->header));
+ tlv->value = value;
+ if (tlv_type != TLV_TYPE_BCNMISS)
+ tlv->freq = freq;
+
+ /* The command header, the event mask, and the one TLV */
+ events->hdr.size = cpu_to_le16(sizeof(events->hdr) + 2 + sizeof(*tlv));
+
+ ret = lbs_cmd_with_response(priv, CMD_802_11_SUBSCRIBE_EVENT, events);
+
+ if (!ret)
+ ret = count;
+ out_events:
+ kfree(events);
+ out_page:
+ free_page((unsigned long)buf);
+ return ret;
}
-static ssize_t lbs_lowrssi_read(
- struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
+static ssize_t lbs_lowrssi_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
{
return lbs_threshold_read(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
- file, userbuf, count, ppos);
+ file, userbuf, count, ppos);
}
-static ssize_t lbs_lowrssi_write(
- struct file *file, const char __user *userbuf,
- size_t count, loff_t *ppos)
+static ssize_t lbs_lowrssi_write(struct file *file, const char __user *userbuf,
+ size_t count, loff_t *ppos)
{
return lbs_threshold_write(TLV_TYPE_RSSI_LOW, CMD_SUBSCRIBE_RSSI_LOW,
- file, userbuf, count, ppos);
+ file, userbuf, count, ppos);
}
-static ssize_t lbs_lowsnr_read(
- struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
+static ssize_t lbs_lowsnr_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
{
return lbs_threshold_read(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
- file, userbuf, count, ppos);
+ file, userbuf, count, ppos);
}
-static ssize_t lbs_lowsnr_write(
- struct file *file, const char __user *userbuf,
- size_t count, loff_t *ppos)
+static ssize_t lbs_lowsnr_write(struct file *file, const char __user *userbuf,
+ size_t count, loff_t *ppos)
{
return lbs_threshold_write(TLV_TYPE_SNR_LOW, CMD_SUBSCRIBE_SNR_LOW,
- file, userbuf, count, ppos);
+ file, userbuf, count, ppos);
}
-static ssize_t lbs_failcount_read(
- struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
+static ssize_t lbs_failcount_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
{
return lbs_threshold_read(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
- file, userbuf, count, ppos);
+ file, userbuf, count, ppos);
}
-static ssize_t lbs_failcount_write(
- struct file *file, const char __user *userbuf,
- size_t count, loff_t *ppos)
+static ssize_t lbs_failcount_write(struct file *file, const char __user *userbuf,
+ size_t count, loff_t *ppos)
{
return lbs_threshold_write(TLV_TYPE_FAILCOUNT, CMD_SUBSCRIBE_FAILCOUNT,
- file, userbuf, count, ppos);
+ file, userbuf, count, ppos);
}
-static ssize_t lbs_highrssi_read(
- struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
+static ssize_t lbs_highrssi_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
{
return lbs_threshold_read(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
- file, userbuf, count, ppos);
+ file, userbuf, count, ppos);
}
-static ssize_t lbs_highrssi_write(
- struct file *file, const char __user *userbuf,
- size_t count, loff_t *ppos)
+static ssize_t lbs_highrssi_write(struct file *file, const char __user *userbuf,
+ size_t count, loff_t *ppos)
{
return lbs_threshold_write(TLV_TYPE_RSSI_HIGH, CMD_SUBSCRIBE_RSSI_HIGH,
- file, userbuf, count, ppos);
+ file, userbuf, count, ppos);
}
-static ssize_t lbs_highsnr_read(
- struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
+static ssize_t lbs_highsnr_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
{
return lbs_threshold_read(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
- file, userbuf, count, ppos);
+ file, userbuf, count, ppos);
}
-static ssize_t lbs_highsnr_write(
- struct file *file, const char __user *userbuf,
- size_t count, loff_t *ppos)
+static ssize_t lbs_highsnr_write(struct file *file, const char __user *userbuf,
+ size_t count, loff_t *ppos)
{
return lbs_threshold_write(TLV_TYPE_SNR_HIGH, CMD_SUBSCRIBE_SNR_HIGH,
- file, userbuf, count, ppos);
+ file, userbuf, count, ppos);
}
-static ssize_t lbs_bcnmiss_read(
- struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
+static ssize_t lbs_bcnmiss_read(struct file *file, char __user *userbuf,
+ size_t count, loff_t *ppos)
{
return lbs_threshold_read(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
- file, userbuf, count, ppos);
+ file, userbuf, count, ppos);
}
-static ssize_t lbs_bcnmiss_write(
- struct file *file, const char __user *userbuf,
- size_t count, loff_t *ppos)
+static ssize_t lbs_bcnmiss_write(struct file *file, const char __user *userbuf,
+ size_t count, loff_t *ppos)
{
return lbs_threshold_write(TLV_TYPE_BCNMISS, CMD_SUBSCRIBE_BCNMISS,
- file, userbuf, count, ppos);
+ file, userbuf, count, ppos);
}
-
-
-
-
-
static ssize_t lbs_rdmac_read(struct file *file, char __user *userbuf,
size_t count, loff_t *ppos)
{
diff --git a/drivers/net/wireless/libertas/hostcmd.h b/drivers/net/wireless/libertas/hostcmd.h
index fffec11..be325ed 100644
--- a/drivers/net/wireless/libertas/hostcmd.h
+++ b/drivers/net/wireless/libertas/hostcmd.h
@@ -156,6 +156,8 @@ struct cmd_ds_802_11_reset {
};
struct cmd_ds_802_11_subscribe_event {
+ struct cmd_header hdr;
+
__le16 action;
__le16 events;
@@ -164,7 +166,7 @@ struct cmd_ds_802_11_subscribe_event {
* 40 bytes. However, future firmware might add additional TLVs, so I
* bump this up a bit.
*/
- u8 tlv[128];
+ uint8_t tlv[128];
};
/*
@@ -728,7 +730,6 @@ struct cmd_ds_command {
struct cmd_ds_bt_access bt;
struct cmd_ds_fwt_access fwt;
struct cmd_ds_get_tsf gettsf;
- struct cmd_ds_802_11_subscribe_event subscribe_event;
struct cmd_ds_802_11_beacon_control bcn_ctrl;
} params;
} __attribute__ ((packed));
--
1.5.3.4
More information about the libertas-dev
mailing list