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staging: vt6656: Split RTS and CTS Duration functions

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split vnt_get_rtscts_duration_le into vnt_get_rts_duration and
vnt_get_cts_duration.

The duration's are all the same in vnt_rxtx_rts_g_head.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Link: https://lore.kernel.org/r/d2983161-7935-48ce-c0ca-a26ebafa3997@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Malcolm Priestley 2020-05-05 22:17:26 +01:00 committed by Greg Kroah-Hartman
parent 7a83f73645
commit 8e7128f63d
1 changed files with 16 additions and 40 deletions
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56
drivers/staging/vt6656/rxtx.c
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@ -13,7 +13,6 @@
*
* Functions:
* vnt_generate_tx_parameter - Generate tx dma required parameter.
* vnt_get_rtscts_duration_le- get rtx/cts required duration
* vnt_get_rtscts_rsvtime_le- get rts/cts reserved time
* vnt_get_rsvtime- get frame reserved time
* vnt_fill_cts_head- fulfill CTS ctl header
@ -38,10 +37,6 @@ static const u16 vnt_time_stampoff[2][MAX_RATE] = {
{384, 192, 130, 113, 54, 43, 37, 31, 28, 25, 24, 23},
};
#define RTSDUR_BB 0
#define RTSDUR_BA 1
#define RTSDUR_AA 2
#define CTSDUR_BA 3
#define DATADUR_B 10
#define DATADUR_A 11
@ -260,27 +255,22 @@ static __le16 vnt_get_rtscts_rsvtime_le(struct vnt_private *priv, u8 rsv_type,
return cpu_to_le16((u16)rrv_time);
}
static __le16 vnt_get_rtscts_duration_le(struct vnt_usb_send_context *context,
u8 dur_type, u8 pkt_type, u16 rate)
static __le16 vnt_get_rts_duration(struct vnt_usb_send_context *context)
{
struct vnt_private *priv = context->priv;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(context->skb);
switch (dur_type) {
/* fall through */
case RTSDUR_BB:
case RTSDUR_BA:
case RTSDUR_AA:
return ieee80211_rts_duration(priv->hw, priv->vif,
context->frame_len, info);
case CTSDUR_BA:
return ieee80211_ctstoself_duration(priv->hw, priv->vif,
context->frame_len, info);
default:
break;
}
return ieee80211_rts_duration(priv->hw, priv->vif,
context->frame_len, info);
}
return cpu_to_le16(0);
static __le16 vnt_get_cts_duration(struct vnt_usb_send_context *context)
{
struct vnt_private *priv = context->priv;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(context->skb);
return ieee80211_ctstoself_duration(priv->hw, priv->vif,
context->frame_len, info);
}
static u16 vnt_mac_hdr_pos(struct vnt_usb_send_context *tx_context,
@ -359,22 +349,15 @@ static void vnt_rxtx_rts_g_head(struct vnt_usb_send_context *tx_context,
{
struct vnt_private *priv = tx_context->priv;
u16 rts_frame_len = 20;
u16 current_rate = tx_context->tx_rate;
vnt_get_phy_field(priv, rts_frame_len, priv->top_cck_basic_rate,
PK_TYPE_11B, &buf->b);
vnt_get_phy_field(priv, rts_frame_len, priv->top_ofdm_basic_rate,
tx_context->pkt_type, &buf->a);
buf->duration_bb = vnt_get_rtscts_duration_le(tx_context, RTSDUR_BB,
PK_TYPE_11B,
priv->top_cck_basic_rate);
buf->duration_aa = vnt_get_rtscts_duration_le(tx_context, RTSDUR_AA,
tx_context->pkt_type,
current_rate);
buf->duration_ba = vnt_get_rtscts_duration_le(tx_context, RTSDUR_BA,
tx_context->pkt_type,
current_rate);
buf->duration_bb = vnt_get_rts_duration(tx_context);
buf->duration_aa = buf->duration_bb;
buf->duration_ba = buf->duration_bb;
vnt_fill_ieee80211_rts(tx_context, &buf->data, buf->duration_aa);
@ -385,15 +368,12 @@ static void vnt_rxtx_rts_ab_head(struct vnt_usb_send_context *tx_context,
struct vnt_rts_ab *buf)
{
struct vnt_private *priv = tx_context->priv;
u16 current_rate = tx_context->tx_rate;
u16 rts_frame_len = 20;
vnt_get_phy_field(priv, rts_frame_len, priv->top_ofdm_basic_rate,
tx_context->pkt_type, &buf->ab);
buf->duration = vnt_get_rtscts_duration_le(tx_context, RTSDUR_AA,
tx_context->pkt_type,
current_rate);
buf->duration = vnt_get_rts_duration(tx_context);
vnt_fill_ieee80211_rts(tx_context, &buf->data, buf->duration);
@ -406,16 +386,12 @@ static void vnt_fill_cts_head(struct vnt_usb_send_context *tx_context,
struct vnt_private *priv = tx_context->priv;
struct vnt_cts *buf = &head->cts_g;
u32 cts_frame_len = 14;
u16 current_rate = tx_context->tx_rate;
/* Get SignalField,ServiceField,Length */
vnt_get_phy_field(priv, cts_frame_len, priv->top_cck_basic_rate,
PK_TYPE_11B, &buf->b);
/* Get CTSDuration_ba */
buf->duration_ba =
vnt_get_rtscts_duration_le(tx_context, CTSDUR_BA,
tx_context->pkt_type,
current_rate);
buf->duration_ba = vnt_get_cts_duration(tx_context);
/*Get CTS Frame body*/
buf->data.duration = buf->duration_ba;
buf->data.frame_control =