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wlcore/wl12xx: add global elements to convert hw-rates to standard rates 

Rates reported by HW can be different between chip families. Make the
rate-to-idx translation tables private per family and use them in a
common translation function. Add a global element to help determine
which rates are HW HT-rates.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
This commit is contained in:
Arik Nemtsov 2011-12-08 00:43:48 +02:00 committed by Luciano Coelho
parent 6f266e912c
commit 43a8bc5a53
7 changed files with 123 additions and 108 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

93
drivers/net/wireless/ti/wl12xx/main.c
View File

@ -39,6 +39,96 @@
#define WL12XX_TX_HW_BLOCK_GEM_SPARE 2
#define WL12XX_TX_HW_BLOCK_SIZE 252
static const u8 wl12xx_rate_to_idx_2ghz[] = {
/* MCS rates are used only with 11n */
7, /* WL12XX_CONF_HW_RXTX_RATE_MCS7_SGI */
7, /* WL12XX_CONF_HW_RXTX_RATE_MCS7 */
6, /* WL12XX_CONF_HW_RXTX_RATE_MCS6 */
5, /* WL12XX_CONF_HW_RXTX_RATE_MCS5 */
4, /* WL12XX_CONF_HW_RXTX_RATE_MCS4 */
3, /* WL12XX_CONF_HW_RXTX_RATE_MCS3 */
2, /* WL12XX_CONF_HW_RXTX_RATE_MCS2 */
1, /* WL12XX_CONF_HW_RXTX_RATE_MCS1 */
0, /* WL12XX_CONF_HW_RXTX_RATE_MCS0 */
11, /* WL12XX_CONF_HW_RXTX_RATE_54 */
10, /* WL12XX_CONF_HW_RXTX_RATE_48 */
9, /* WL12XX_CONF_HW_RXTX_RATE_36 */
8, /* WL12XX_CONF_HW_RXTX_RATE_24 */
/* TI-specific rate */
CONF_HW_RXTX_RATE_UNSUPPORTED, /* WL12XX_CONF_HW_RXTX_RATE_22 */
7, /* WL12XX_CONF_HW_RXTX_RATE_18 */
6, /* WL12XX_CONF_HW_RXTX_RATE_12 */
3, /* WL12XX_CONF_HW_RXTX_RATE_11 */
5, /* WL12XX_CONF_HW_RXTX_RATE_9 */
4, /* WL12XX_CONF_HW_RXTX_RATE_6 */
2, /* WL12XX_CONF_HW_RXTX_RATE_5_5 */
1, /* WL12XX_CONF_HW_RXTX_RATE_2 */
0 /* WL12XX_CONF_HW_RXTX_RATE_1 */
};
static const u8 wl12xx_rate_to_idx_5ghz[] = {
/* MCS rates are used only with 11n */
7, /* WL12XX_CONF_HW_RXTX_RATE_MCS7_SGI */
7, /* WL12XX_CONF_HW_RXTX_RATE_MCS7 */
6, /* WL12XX_CONF_HW_RXTX_RATE_MCS6 */
5, /* WL12XX_CONF_HW_RXTX_RATE_MCS5 */
4, /* WL12XX_CONF_HW_RXTX_RATE_MCS4 */
3, /* WL12XX_CONF_HW_RXTX_RATE_MCS3 */
2, /* WL12XX_CONF_HW_RXTX_RATE_MCS2 */
1, /* WL12XX_CONF_HW_RXTX_RATE_MCS1 */
0, /* WL12XX_CONF_HW_RXTX_RATE_MCS0 */
7, /* WL12XX_CONF_HW_RXTX_RATE_54 */
6, /* WL12XX_CONF_HW_RXTX_RATE_48 */
5, /* WL12XX_CONF_HW_RXTX_RATE_36 */
4, /* WL12XX_CONF_HW_RXTX_RATE_24 */
/* TI-specific rate */
CONF_HW_RXTX_RATE_UNSUPPORTED, /* WL12XX_CONF_HW_RXTX_RATE_22 */
3, /* WL12XX_CONF_HW_RXTX_RATE_18 */
2, /* WL12XX_CONF_HW_RXTX_RATE_12 */
CONF_HW_RXTX_RATE_UNSUPPORTED, /* WL12XX_CONF_HW_RXTX_RATE_11 */
1, /* WL12XX_CONF_HW_RXTX_RATE_9 */
0, /* WL12XX_CONF_HW_RXTX_RATE_6 */
CONF_HW_RXTX_RATE_UNSUPPORTED, /* WL12XX_CONF_HW_RXTX_RATE_5_5 */
CONF_HW_RXTX_RATE_UNSUPPORTED, /* WL12XX_CONF_HW_RXTX_RATE_2 */
CONF_HW_RXTX_RATE_UNSUPPORTED /* WL12XX_CONF_HW_RXTX_RATE_1 */
};
static const u8 *wl12xx_band_rate_to_idx[] = {
[IEEE80211_BAND_2GHZ] = wl12xx_rate_to_idx_2ghz,
[IEEE80211_BAND_5GHZ] = wl12xx_rate_to_idx_5ghz
};
enum wl12xx_hw_rates {
WL12XX_CONF_HW_RXTX_RATE_MCS7_SGI = 0,
WL12XX_CONF_HW_RXTX_RATE_MCS7,
WL12XX_CONF_HW_RXTX_RATE_MCS6,
WL12XX_CONF_HW_RXTX_RATE_MCS5,
WL12XX_CONF_HW_RXTX_RATE_MCS4,
WL12XX_CONF_HW_RXTX_RATE_MCS3,
WL12XX_CONF_HW_RXTX_RATE_MCS2,
WL12XX_CONF_HW_RXTX_RATE_MCS1,
WL12XX_CONF_HW_RXTX_RATE_MCS0,
WL12XX_CONF_HW_RXTX_RATE_54,
WL12XX_CONF_HW_RXTX_RATE_48,
WL12XX_CONF_HW_RXTX_RATE_36,
WL12XX_CONF_HW_RXTX_RATE_24,
WL12XX_CONF_HW_RXTX_RATE_22,
WL12XX_CONF_HW_RXTX_RATE_18,
WL12XX_CONF_HW_RXTX_RATE_12,
WL12XX_CONF_HW_RXTX_RATE_11,
WL12XX_CONF_HW_RXTX_RATE_9,
WL12XX_CONF_HW_RXTX_RATE_6,
WL12XX_CONF_HW_RXTX_RATE_5_5,
WL12XX_CONF_HW_RXTX_RATE_2,
WL12XX_CONF_HW_RXTX_RATE_1,
WL12XX_CONF_HW_RXTX_RATE_MAX,
};
static struct wlcore_partition_set wl12xx_ptable[PART_TABLE_LEN] = {
[PART_DOWN] = {
@ -741,6 +831,9 @@ static int __devinit wl12xx_probe(struct platform_device *pdev)
wl->num_tx_desc = 16;
wl->normal_tx_spare = WL12XX_TX_HW_BLOCK_SPARE_DEFAULT;
wl->gem_tx_spare = WL12XX_TX_HW_BLOCK_GEM_SPARE;
wl->band_rate_to_idx = wl12xx_band_rate_to_idx;
wl->hw_tx_rate_tbl_size = WL12XX_CONF_HW_RXTX_RATE_MAX;
wl->hw_min_ht_rate = WL12XX_CONF_HW_RXTX_RATE_MCS0;
return wlcore_probe(wl, pdev);
}

31
drivers/net/wireless/ti/wlcore/conf.h
View File

@ -65,36 +65,7 @@ enum {
CONF_HW_RATE_INDEX_MAX = CONF_HW_RATE_INDEX_54MBPS,
};
enum {
CONF_HW_RXTX_RATE_MCS7_SGI = 0,
CONF_HW_RXTX_RATE_MCS7,
CONF_HW_RXTX_RATE_MCS6,
CONF_HW_RXTX_RATE_MCS5,
CONF_HW_RXTX_RATE_MCS4,
CONF_HW_RXTX_RATE_MCS3,
CONF_HW_RXTX_RATE_MCS2,
CONF_HW_RXTX_RATE_MCS1,
CONF_HW_RXTX_RATE_MCS0,
CONF_HW_RXTX_RATE_54,
CONF_HW_RXTX_RATE_48,
CONF_HW_RXTX_RATE_36,
CONF_HW_RXTX_RATE_24,
CONF_HW_RXTX_RATE_22,
CONF_HW_RXTX_RATE_18,
CONF_HW_RXTX_RATE_12,
CONF_HW_RXTX_RATE_11,
CONF_HW_RXTX_RATE_9,
CONF_HW_RXTX_RATE_6,
CONF_HW_RXTX_RATE_5_5,
CONF_HW_RXTX_RATE_2,
CONF_HW_RXTX_RATE_1,
CONF_HW_RXTX_RATE_MAX,
CONF_HW_RXTX_RATE_UNSUPPORTED = 0xff
};
/* Rates between and including these are MCS rates */
#define CONF_HW_RXTX_RATE_MCS_MIN CONF_HW_RXTX_RATE_MCS7_SGI
#define CONF_HW_RXTX_RATE_MCS_MAX CONF_HW_RXTX_RATE_MCS0
#define CONF_HW_RXTX_RATE_UNSUPPORTED 0xff
enum {
CONF_SG_DISABLE = 0,

75
drivers/net/wireless/ti/wlcore/main.c
View File

@ -4624,37 +4624,6 @@ static struct ieee80211_channel wl1271_channels[] = {
{ .hw_value = 14, .center_freq = 2484, .max_power = 25 },
};
/* mapping to indexes for wl1271_rates */
static const u8 wl1271_rate_to_idx_2ghz[] = {
/* MCS rates are used only with 11n */
7, /* CONF_HW_RXTX_RATE_MCS7_SGI */
7, /* CONF_HW_RXTX_RATE_MCS7 */
6, /* CONF_HW_RXTX_RATE_MCS6 */
5, /* CONF_HW_RXTX_RATE_MCS5 */
4, /* CONF_HW_RXTX_RATE_MCS4 */
3, /* CONF_HW_RXTX_RATE_MCS3 */
2, /* CONF_HW_RXTX_RATE_MCS2 */
1, /* CONF_HW_RXTX_RATE_MCS1 */
0, /* CONF_HW_RXTX_RATE_MCS0 */
11, /* CONF_HW_RXTX_RATE_54 */
10, /* CONF_HW_RXTX_RATE_48 */
9, /* CONF_HW_RXTX_RATE_36 */
8, /* CONF_HW_RXTX_RATE_24 */
/* TI-specific rate */
CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
7, /* CONF_HW_RXTX_RATE_18 */
6, /* CONF_HW_RXTX_RATE_12 */
3, /* CONF_HW_RXTX_RATE_11 */
5, /* CONF_HW_RXTX_RATE_9 */
4, /* CONF_HW_RXTX_RATE_6 */
2, /* CONF_HW_RXTX_RATE_5_5 */
1, /* CONF_HW_RXTX_RATE_2 */
0 /* CONF_HW_RXTX_RATE_1 */
};
/* 11n STA capabilities */
#define HW_RX_HIGHEST_RATE 72
@ -4746,37 +4715,6 @@ static struct ieee80211_channel wl1271_channels_5ghz[] = {
{ .hw_value = 165, .center_freq = 5825, .max_power = 25 },
};
/* mapping to indexes for wl1271_rates_5ghz */
static const u8 wl1271_rate_to_idx_5ghz[] = {
/* MCS rates are used only with 11n */
7, /* CONF_HW_RXTX_RATE_MCS7_SGI */
7, /* CONF_HW_RXTX_RATE_MCS7 */
6, /* CONF_HW_RXTX_RATE_MCS6 */
5, /* CONF_HW_RXTX_RATE_MCS5 */
4, /* CONF_HW_RXTX_RATE_MCS4 */
3, /* CONF_HW_RXTX_RATE_MCS3 */
2, /* CONF_HW_RXTX_RATE_MCS2 */
1, /* CONF_HW_RXTX_RATE_MCS1 */
0, /* CONF_HW_RXTX_RATE_MCS0 */
7, /* CONF_HW_RXTX_RATE_54 */
6, /* CONF_HW_RXTX_RATE_48 */
5, /* CONF_HW_RXTX_RATE_36 */
4, /* CONF_HW_RXTX_RATE_24 */
/* TI-specific rate */
CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
3, /* CONF_HW_RXTX_RATE_18 */
2, /* CONF_HW_RXTX_RATE_12 */
CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_11 */
1, /* CONF_HW_RXTX_RATE_9 */
0, /* CONF_HW_RXTX_RATE_6 */
CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_5_5 */
CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_2 */
CONF_HW_RXTX_RATE_UNSUPPORTED /* CONF_HW_RXTX_RATE_1 */
};
static struct ieee80211_supported_band wl1271_band_5ghz = {
.channels = wl1271_channels_5ghz,
.n_channels = ARRAY_SIZE(wl1271_channels_5ghz),
@ -4785,11 +4723,6 @@ static struct ieee80211_supported_band wl1271_band_5ghz = {
.ht_cap = WL12XX_HT_CAP,
};
static const u8 *wl1271_band_rate_to_idx[] = {
[IEEE80211_BAND_2GHZ] = wl1271_rate_to_idx_2ghz,
[IEEE80211_BAND_5GHZ] = wl1271_rate_to_idx_5ghz
};
static const struct ieee80211_ops wl1271_ops = {
.start = wl1271_op_start,
.stop = wl1271_op_stop,
@ -4824,18 +4757,18 @@ static const struct ieee80211_ops wl1271_ops = {
};
u8 wl1271_rate_to_idx(int rate, enum ieee80211_band band)
u8 wlcore_rate_to_idx(struct wl1271 *wl, u8 rate, enum ieee80211_band band)
{
u8 idx;
BUG_ON(band >= sizeof(wl1271_band_rate_to_idx)/sizeof(u8 *));
BUG_ON(band >= 2);
if (unlikely(rate >= CONF_HW_RXTX_RATE_MAX)) {
if (unlikely(rate >= wl->hw_tx_rate_tbl_size)) {
wl1271_error("Illegal RX rate from HW: %d", rate);
return 0;
}
idx = wl1271_band_rate_to_idx[band][rate];
idx = wl->band_rate_to_idx[band][rate];
if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
wl1271_error("Unsupported RX rate from HW: %d", rate);
return 0;

4
drivers/net/wireless/ti/wlcore/rx.c
View File

@ -71,10 +71,10 @@ static void wl1271_rx_status(struct wl1271 *wl,
else
status->band = IEEE80211_BAND_5GHZ;
status->rate_idx = wl1271_rate_to_idx(desc->rate, status->band);
status->rate_idx = wlcore_rate_to_idx(wl, desc->rate, status->band);
/* 11n support */
if (desc->rate <= CONF_HW_RXTX_RATE_MCS0)
if (desc->rate <= wl->hw_min_ht_rate)
status->flag |= RX_FLAG_HT;
status->signal = desc->rssi;

17
drivers/net/wireless/ti/wlcore/tx.c
View File

@ -759,11 +759,20 @@ static u8 wl1271_tx_get_rate_flags(u8 rate_class_index)
{
u8 flags = 0;
if (rate_class_index >= CONF_HW_RXTX_RATE_MCS_MIN &&
rate_class_index <= CONF_HW_RXTX_RATE_MCS_MAX)
/*
* TODO: use wl12xx constants when this code is moved to wl12xx, as
* only it uses Tx-completion.
*/
if (rate_class_index <= 8)
flags |= IEEE80211_TX_RC_MCS;
if (rate_class_index == CONF_HW_RXTX_RATE_MCS7_SGI)
/*
* TODO: use wl12xx constants when this code is moved to wl12xx, as
* only it uses Tx-completion.
*/
if (rate_class_index == 0)
flags |= IEEE80211_TX_RC_SHORT_GI;
return flags;
}
@ -801,7 +810,7 @@ static void wl1271_tx_complete_packet(struct wl1271 *wl,
if (result->status == TX_SUCCESS) {
if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
info->flags |= IEEE80211_TX_STAT_ACK;
rate = wl1271_rate_to_idx(result->rate_class_index,
rate = wlcore_rate_to_idx(wl, result->rate_class_index,
wlvif->band);
rate_flags = wl1271_tx_get_rate_flags(result->rate_class_index);
retries = result->ack_failures;

2
drivers/net/wireless/ti/wlcore/tx.h
View File

@ -209,7 +209,7 @@ void wl1271_tx_complete(struct wl1271 *wl);
void wl12xx_tx_reset_wlvif(struct wl1271 *wl, struct wl12xx_vif *wlvif);
void wl12xx_tx_reset(struct wl1271 *wl, bool reset_tx_queues);
void wl1271_tx_flush(struct wl1271 *wl);
u8 wl1271_rate_to_idx(int rate, enum ieee80211_band band);
u8 wlcore_rate_to_idx(struct wl1271 *wl, u8 rate, enum ieee80211_band band);
u32 wl1271_tx_enabled_rates_get(struct wl1271 *wl, u32 rate_set,
enum ieee80211_band rate_band);
u32 wl1271_tx_min_rate_get(struct wl1271 *wl, u32 rate_set);

9
drivers/net/wireless/ti/wlcore/wlcore.h
View File

@ -319,6 +319,15 @@ struct wl1271 {
/* spare Tx blocks for normal/GEM operating modes */
u32 normal_tx_spare;
u32 gem_tx_spare;
/* translate HW Tx rates to standard rate-indices */
const u8 **band_rate_to_idx;
/* size of table for HW rates that can be received from chip */
u8 hw_tx_rate_tbl_size;
/* this HW rate and below are considered HT rates for this chip */
u8 hw_min_ht_rate;
};
int __devinit wlcore_probe(struct wl1271 *wl, struct platform_device *pdev);