From: Juuso Oikarinen <juuso.oikarinen@xxxxxxxxx>
Clean up the code to convert a firmware rate class index into an index
for the rate configuration table.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@xxxxxxxxx>
Reviewed-by: Kalle Valo <kalle.valo@xxxxxxxxx>
Signed-off-by: Luciano Coelho <luciano.coelho@xxxxxxxxx>
---
drivers/net/wireless/wl12xx/wl1271_conf.h | 26 +++++++++
drivers/net/wireless/wl12xx/wl1271_main.c | 85 +++++++++++++++++++++++++++++
drivers/net/wireless/wl12xx/wl1271_rx.c | 76 +-------------------------
drivers/net/wireless/wl12xx/wl1271_rx.h | 2 +-
4 files changed, 114 insertions(+), 75 deletions(-)
diff --git a/drivers/net/wireless/wl12xx/wl1271_conf.h b/drivers/net/wireless/wl12xx/wl1271_conf.h
index 7fcfe06..f63dd5e 100644
--- a/drivers/net/wireless/wl12xx/wl1271_conf.h
+++ b/drivers/net/wireless/wl12xx/wl1271_conf.h
@@ -66,6 +66,32 @@ enum {
};
enum {
+ CONF_HW_RXTX_RATE_MCS7 = 0,
+ 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
+};
+
+enum {
CONF_SG_DISABLE = 0,
CONF_SG_PROTECTIVE,
CONF_SG_OPPORTUNISTIC
diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c
index 3daba6c..49779e5 100644
--- a/drivers/net/wireless/wl12xx/wl1271_main.c
+++ b/drivers/net/wireless/wl12xx/wl1271_main.c
@@ -1816,6 +1816,36 @@ static struct ieee80211_channel wl1271_channels[] = {
{ .hw_value = 13, .center_freq = 2472, .max_power = 25 },
};
+/* mapping to indexes for wl1271_rates */
+const static u8 wl1271_rate_to_idx_2ghz[] = {
+ /* MCS rates are used only with 11n */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS7 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS6 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS5 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS4 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS3 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS2 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS1 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* 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 */
+};
+
/* can't be const, mac80211 writes to this */
static struct ieee80211_supported_band wl1271_band_2ghz = {
.channels = wl1271_channels,
@@ -1898,6 +1928,35 @@ static struct ieee80211_channel wl1271_channels_5ghz[] = {
{ .hw_value = 165, .center_freq = 5825},
};
+/* mapping to indexes for wl1271_rates_5ghz */
+const static u8 wl1271_rate_to_idx_5ghz[] = {
+ /* MCS rates are used only with 11n */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS7 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS6 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS5 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS4 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS3 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS2 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_MCS1 */
+ CONF_HW_RXTX_RATE_UNSUPPORTED, /* 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,
@@ -1906,6 +1965,11 @@ static struct ieee80211_supported_band wl1271_band_5ghz = {
.n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz),
};
+const static 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,
@@ -1923,6 +1987,27 @@ static const struct ieee80211_ops wl1271_ops = {
CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
};
+
+u8 wl1271_rate_to_idx(struct wl1271 *wl, int rate)
+{
+ u8 idx;
+
+ BUG_ON(wl->band >= sizeof(wl1271_band_rate_to_idx)/sizeof(u8 *));
+
+ if (unlikely(rate >= CONF_HW_RXTX_RATE_MAX)) {
+ wl1271_error("Illegal RX rate from HW: %d", rate);
+ return 0;
+ }
+
+ idx = wl1271_band_rate_to_idx[wl->band][rate];
+ if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
+ wl1271_error("Unsupported RX rate from HW: %d", rate);
+ return 0;
+ }
+
+ return idx;
+}
+
static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
struct device_attribute *attr,
char *buf)
diff --git a/drivers/net/wireless/wl12xx/wl1271_rx.c b/drivers/net/wireless/wl12xx/wl1271_rx.c
index b824c6c..a1a7953 100644
--- a/drivers/net/wireless/wl12xx/wl1271_rx.c
+++ b/drivers/net/wireless/wl12xx/wl1271_rx.c
@@ -41,66 +41,6 @@ static u32 wl1271_rx_get_buf_size(struct wl1271_fw_status *status,
RX_BUF_SIZE_MASK) >> RX_BUF_SIZE_SHIFT_DIV;
}
-/* The values of this table must match the wl1271_rates[] array */
-static u8 wl1271_rx_rate_to_idx[] = {
- /* MCS rates are used only with 11n */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS7 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS6 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS5 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS4 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS3 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS2 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS1 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS0 */
-
- 11, /* WL1271_RATE_54 */
- 10, /* WL1271_RATE_48 */
- 9, /* WL1271_RATE_36 */
- 8, /* WL1271_RATE_24 */
-
- /* TI-specific rate */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_22 */
-
- 7, /* WL1271_RATE_18 */
- 6, /* WL1271_RATE_12 */
- 3, /* WL1271_RATE_11 */
- 5, /* WL1271_RATE_9 */
- 4, /* WL1271_RATE_6 */
- 2, /* WL1271_RATE_5_5 */
- 1, /* WL1271_RATE_2 */
- 0 /* WL1271_RATE_1 */
-};
-
-/* The values of this table must match the wl1271_rates[] array */
-static u8 wl1271_5_ghz_rx_rate_to_idx[] = {
- /* MCS rates are used only with 11n */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS7 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS6 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS5 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS4 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS3 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS2 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS1 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_MCS0 */
-
- 7, /* WL1271_RATE_54 */
- 6, /* WL1271_RATE_48 */
- 5, /* WL1271_RATE_36 */
- 4, /* WL1271_RATE_24 */
-
- /* TI-specific rate */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_22 */
-
- 3, /* WL1271_RATE_18 */
- 2, /* WL1271_RATE_12 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_11 */
- 1, /* WL1271_RATE_9 */
- 0, /* WL1271_RATE_6 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_5_5 */
- WL1271_RX_RATE_UNSUPPORTED, /* WL1271_RATE_2 */
- WL1271_RX_RATE_UNSUPPORTED /* WL1271_RATE_1 */
-};
-
static void wl1271_rx_status(struct wl1271 *wl,
struct wl1271_rx_descriptor *desc,
struct ieee80211_rx_status *status,
@@ -108,20 +48,8 @@ static void wl1271_rx_status(struct wl1271 *wl,
{
memset(status, 0, sizeof(struct ieee80211_rx_status));
- if ((desc->flags & WL1271_RX_DESC_BAND_MASK) ==
- WL1271_RX_DESC_BAND_BG) {
- status->band = IEEE80211_BAND_2GHZ;
- status->rate_idx = wl1271_rx_rate_to_idx[desc->rate];
- } else if ((desc->flags & WL1271_RX_DESC_BAND_MASK) ==
- WL1271_RX_DESC_BAND_A) {
- status->band = IEEE80211_BAND_5GHZ;
- status->rate_idx = wl1271_5_ghz_rx_rate_to_idx[desc->rate];
- } else
- wl1271_warning("unsupported band 0x%x",
- desc->flags & WL1271_RX_DESC_BAND_MASK);
-
- if (unlikely(status->rate_idx == WL1271_RX_RATE_UNSUPPORTED))
- wl1271_warning("unsupported rate");
+ status->band = wl->band;
+ status->rate_idx = wl1271_rate_to_idx(wl, desc->rate);
/*
* FIXME: Add mactime handling. For IBSS (ad-hoc) we need to get the
diff --git a/drivers/net/wireless/wl12xx/wl1271_rx.h b/drivers/net/wireless/wl12xx/wl1271_rx.h
index 1ae6d17..b89be47 100644
--- a/drivers/net/wireless/wl12xx/wl1271_rx.h
+++ b/drivers/net/wireless/wl12xx/wl1271_rx.h
@@ -43,7 +43,6 @@
#define RX_MAX_PACKET_ID 3
#define NUM_RX_PKT_DESC_MOD_MASK 7
-#define WL1271_RX_RATE_UNSUPPORTED 0xFF
#define RX_DESC_VALID_FCS 0x0001
#define RX_DESC_MATCH_RXADDR1 0x0002
@@ -117,5 +116,6 @@ struct wl1271_rx_descriptor {
} __attribute__ ((packed));
void wl1271_rx(struct wl1271 *wl, struct wl1271_fw_status *status);
+u8 wl1271_rate_to_idx(struct wl1271 *wl, int rate);
#endif
--
1.6.3.3
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
