/* adding this flag to rate_code enables short preamble, see ar5212_reg.h */
#define AR5K_SET_SHORT_PREAMBLE 0x04
-#define HAS_SHPREAMBLE(_ix) \
- (rt->rates[_ix].modulation == IEEE80211_RATE_SHORT_PREAMBLE)
-#define SHPREAMBLE_FLAG(_ix) \
- (HAS_SHPREAMBLE(_ix) ? AR5K_SET_SHORT_PREAMBLE : 0)
-
/****************\
TX DEFINITIONS
u16 a2_athchan;
};
+
/*
* Rate definitions
- * TODO: Clean them up or move them on mac80211 -most of these infos are
- * used by the rate control algorytm on MadWiFi.
*/
-/* Max number of rates on the rate table and what it seems
- * Atheros hardware supports */
-#define AR5K_MAX_RATES 32
-
/**
- * struct ath5k_rate - rate structure
- * @valid: is this a valid rate for rate control (remove)
- * @modulation: respective mac80211 modulation
- * @rate_kbps: rate in kbit/s
- * @rate_code: hardware rate value, used in &struct ath5k_desc, on RX on
- * &struct ath5k_rx_status.rs_rate and on TX on
- * &struct ath5k_tx_status.ts_rate. Seems the ar5xxx harware supports
- * up to 32 rates, indexed by 1-32. This means we really only need
- * 6 bits for the rate_code.
- * @dot11_rate: respective IEEE-802.11 rate value
- * @control_rate: index of rate assumed to be used to send control frames.
- * This can be used to set override the value on the rate duration
- * registers. This is only useful if we can override in the harware at
- * what rate we want to send control frames at. Note that IEEE-802.11
- * Ch. 9.6 (after IEEE 802.11g changes) defines the rate at which we
- * should send ACK/CTS, if we change this value we can be breaking
- * the spec.
+ * Seems the ar5xxx harware supports up to 32 rates, indexed by 1-32.
*
- * This structure is used to get the RX rate or set the TX rate on the
+ * The rate code is used to get the RX rate or set the TX rate on the
* hardware descriptors. It is also used for internal modulation control
* and settings.
*
- * On RX after the &struct ath5k_desc is parsed by the appropriate
- * ah_proc_rx_desc() the respective hardware rate value is set in
- * &struct ath5k_rx_status.rs_rate. On TX the desired rate is set in
- * &struct ath5k_tx_status.ts_rate which is later used to setup the
- * &struct ath5k_desc correctly. This is the hardware rate map we are
- * aware of:
+ * This is the hardware rate map we are aware of:
*
- * rate_code 1 2 3 4 5 6 7 8
+ * rate_code 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08
* rate_kbps 3000 1000 ? ? ? 2000 500 48000
*
- * rate_code 9 10 11 12 13 14 15 16
+ * rate_code 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F 0x10
* rate_kbps 24000 12000 6000 54000 36000 18000 9000 ?
*
* rate_code 17 18 19 20 21 22 23 24
* rate_kbps ? ? ? ? ? ? ? 11000
*
* rate_code 25 26 27 28 29 30 31 32
- * rate_kbps 5500 2000 1000 ? ? ? ? ?
+ * rate_kbps 5500 2000 1000 11000S 5500S 2000S ? ?
*
+ * "S" indicates CCK rates with short preamble.
+ *
+ * AR5211 has different rate codes for CCK (802.11B) rates. It only uses the
+ * lowest 4 bits, so they are the same as below with a 0xF mask.
+ * (0xB, 0xA, 0x9 and 0x8 for 1M, 2M, 5.5M and 11M).
+ * We handle this in ath5k_setup_bands().
*/
-struct ath5k_rate {
- u8 valid;
- u32 modulation;
- u16 rate_kbps;
- u8 rate_code;
- u8 dot11_rate;
- u8 control_rate;
-};
-
-/* XXX: GRR all this stuff to get leds blinking ??? (check out setcurmode) */
-struct ath5k_rate_table {
- u16 rate_count;
- u8 rate_code_to_index[AR5K_MAX_RATES]; /* Back-mapping */
- struct ath5k_rate rates[AR5K_MAX_RATES];
-};
-
-/*
- * Rate tables...
- * TODO: CLEAN THIS !!!
- */
-#define AR5K_RATES_11A { 8, { \
- 255, 255, 255, 255, 255, 255, 255, 255, 6, 4, 2, 0, \
- 7, 5, 3, 1, 255, 255, 255, 255, 255, 255, 255, 255, \
- 255, 255, 255, 255, 255, 255, 255, 255 }, { \
- { 1, 0, 6000, 11, 140, 0 }, \
- { 1, 0, 9000, 15, 18, 0 }, \
- { 1, 0, 12000, 10, 152, 2 }, \
- { 1, 0, 18000, 14, 36, 2 }, \
- { 1, 0, 24000, 9, 176, 4 }, \
- { 1, 0, 36000, 13, 72, 4 }, \
- { 1, 0, 48000, 8, 96, 4 }, \
- { 1, 0, 54000, 12, 108, 4 } } \
-}
-
-#define AR5K_RATES_11B { 4, { \
- 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, \
- 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, \
- 3, 2, 1, 0, 255, 255, 255, 255 }, { \
- { 1, 0, 1000, 27, 130, 0 }, \
- { 1, IEEE80211_RATE_SHORT_PREAMBLE, 2000, 26, 132, 1 }, \
- { 1, IEEE80211_RATE_SHORT_PREAMBLE, 5500, 25, 139, 1 }, \
- { 1, IEEE80211_RATE_SHORT_PREAMBLE, 11000, 24, 150, 1 } } \
-}
-
-#define AR5K_RATES_11G { 12, { \
- 255, 255, 255, 255, 255, 255, 255, 255, 10, 8, 6, 4, \
- 11, 9, 7, 5, 255, 255, 255, 255, 255, 255, 255, 255, \
- 3, 2, 1, 0, 255, 255, 255, 255 }, { \
- { 1, 0, 1000, 27, 2, 0 }, \
- { 1, IEEE80211_RATE_SHORT_PREAMBLE, 2000, 26, 4, 1 }, \
- { 1, IEEE80211_RATE_SHORT_PREAMBLE, 5500, 25, 11, 1 }, \
- { 1, IEEE80211_RATE_SHORT_PREAMBLE, 11000, 24, 22, 1 }, \
- { 0, 0, 6000, 11, 12, 4 }, \
- { 0, 0, 9000, 15, 18, 4 }, \
- { 1, 0, 12000, 10, 24, 6 }, \
- { 1, 0, 18000, 14, 36, 6 }, \
- { 1, 0, 24000, 9, 48, 8 }, \
- { 1, 0, 36000, 13, 72, 8 }, \
- { 1, 0, 48000, 8, 96, 8 }, \
- { 1, 0, 54000, 12, 108, 8 } } \
-}
+#define AR5K_MAX_RATES 32
-#define AR5K_RATES_TURBO { 8, { \
- 255, 255, 255, 255, 255, 255, 255, 255, 6, 4, 2, 0, \
- 7, 5, 3, 1, 255, 255, 255, 255, 255, 255, 255, 255, \
- 255, 255, 255, 255, 255, 255, 255, 255 }, { \
- { 1, MODULATION_TURBO, 6000, 11, 140, 0 }, \
- { 1, MODULATION_TURBO, 9000, 15, 18, 0 }, \
- { 1, MODULATION_TURBO, 12000, 10, 152, 2 }, \
- { 1, MODULATION_TURBO, 18000, 14, 36, 2 }, \
- { 1, MODULATION_TURBO, 24000, 9, 176, 4 }, \
- { 1, MODULATION_TURBO, 36000, 13, 72, 4 }, \
- { 1, MODULATION_TURBO, 48000, 8, 96, 4 }, \
- { 1, MODULATION_TURBO, 54000, 12, 108, 4 } } \
-}
+/* B */
+#define ATH5K_RATE_CODE_1M 0x1B
+#define ATH5K_RATE_CODE_2M 0x1A
+#define ATH5K_RATE_CODE_5_5M 0x19
+#define ATH5K_RATE_CODE_11M 0x18
+/* A and G */
+#define ATH5K_RATE_CODE_6M 0x0B
+#define ATH5K_RATE_CODE_9M 0x0F
+#define ATH5K_RATE_CODE_12M 0x0A
+#define ATH5K_RATE_CODE_18M 0x0E
+#define ATH5K_RATE_CODE_24M 0x09
+#define ATH5K_RATE_CODE_36M 0x0D
+#define ATH5K_RATE_CODE_48M 0x08
+#define ATH5K_RATE_CODE_54M 0x0C
+/* XR */
+#define ATH5K_RATE_CODE_XR_500K 0x07
+#define ATH5K_RATE_CODE_XR_1M 0x02
+#define ATH5K_RATE_CODE_XR_2M 0x06
+#define ATH5K_RATE_CODE_XR_3M 0x01
-#define AR5K_RATES_XR { 12, { \
- 255, 3, 1, 255, 255, 255, 2, 0, 10, 8, 6, 4, \
- 11, 9, 7, 5, 255, 255, 255, 255, 255, 255, 255, 255, \
- 255, 255, 255, 255, 255, 255, 255, 255 }, { \
- { 1, MODULATION_XR, 500, 7, 129, 0 }, \
- { 1, MODULATION_XR, 1000, 2, 139, 1 }, \
- { 1, MODULATION_XR, 2000, 6, 150, 2 }, \
- { 1, MODULATION_XR, 3000, 1, 150, 3 }, \
- { 1, 0, 6000, 11, 140, 4 }, \
- { 1, 0, 9000, 15, 18, 4 }, \
- { 1, 0, 12000, 10, 152, 6 }, \
- { 1, 0, 18000, 14, 36, 6 }, \
- { 1, 0, 24000, 9, 176, 8 }, \
- { 1, 0, 36000, 13, 72, 8 }, \
- { 1, 0, 48000, 8, 96, 8 }, \
- { 1, 0, 54000, 12, 108, 8 } } \
-}
/*
* Crypto definitions
{ "xxxxx", AR5K_VERSION_RAD, AR5K_SREV_UNKNOWN },
};
+static struct ieee80211_rate ath5k_rates[] = {
+ { .bitrate = 10,
+ .hw_value = ATH5K_RATE_CODE_1M, },
+ { .bitrate = 20,
+ .hw_value = ATH5K_RATE_CODE_2M,
+ .hw_value_short = ATH5K_RATE_CODE_2M | AR5K_SET_SHORT_PREAMBLE,
+ .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+ { .bitrate = 55,
+ .hw_value = ATH5K_RATE_CODE_5_5M,
+ .hw_value_short = ATH5K_RATE_CODE_5_5M | AR5K_SET_SHORT_PREAMBLE,
+ .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+ { .bitrate = 110,
+ .hw_value = ATH5K_RATE_CODE_11M,
+ .hw_value_short = ATH5K_RATE_CODE_11M | AR5K_SET_SHORT_PREAMBLE,
+ .flags = IEEE80211_RATE_SHORT_PREAMBLE },
+ { .bitrate = 60,
+ .hw_value = ATH5K_RATE_CODE_6M,
+ .flags = 0 },
+ { .bitrate = 90,
+ .hw_value = ATH5K_RATE_CODE_9M,
+ .flags = 0 },
+ { .bitrate = 120,
+ .hw_value = ATH5K_RATE_CODE_12M,
+ .flags = 0 },
+ { .bitrate = 180,
+ .hw_value = ATH5K_RATE_CODE_18M,
+ .flags = 0 },
+ { .bitrate = 240,
+ .hw_value = ATH5K_RATE_CODE_24M,
+ .flags = 0 },
+ { .bitrate = 360,
+ .hw_value = ATH5K_RATE_CODE_36M,
+ .flags = 0 },
+ { .bitrate = 480,
+ .hw_value = ATH5K_RATE_CODE_48M,
+ .flags = 0 },
+ { .bitrate = 540,
+ .hw_value = ATH5K_RATE_CODE_54M,
+ .flags = 0 },
+ /* XR missing */
+};
+
/*
* Prototypes - PCI stack related functions
*/
struct ieee80211_hw *hw);
/* Channel/mode setup */
static inline short ath5k_ieee2mhz(short chan);
-static unsigned int ath5k_copy_rates(struct ieee80211_rate *rates,
- const struct ath5k_rate_table *rt,
- unsigned int max);
static unsigned int ath5k_copy_channels(struct ath5k_hw *ah,
struct ieee80211_channel *channels,
unsigned int mode,
unsigned int max);
-static int ath5k_getchannels(struct ieee80211_hw *hw);
+static int ath5k_setup_bands(struct ieee80211_hw *hw);
static int ath5k_chan_set(struct ath5k_softc *sc,
struct ieee80211_channel *chan);
static void ath5k_setcurmode(struct ath5k_softc *sc,
unsigned int mode);
static void ath5k_mode_setup(struct ath5k_softc *sc);
-static void ath5k_set_total_hw_rates(struct ath5k_softc *sc);
/* Descriptor setup */
static int ath5k_desc_alloc(struct ath5k_softc *sc,
#endif /* CONFIG_PM */
-
/***********************\
* Driver Initialization *
\***********************/
* on settings like the phy mode and regulatory
* domain restrictions.
*/
- ret = ath5k_getchannels(hw);
+ ret = ath5k_setup_bands(hw);
if (ret) {
ATH5K_ERR(sc, "can't get channels\n");
goto err;
}
- /* Set *_rates so we can map hw rate index */
- ath5k_set_total_hw_rates(sc);
-
/* NB: setup here so ath5k_rate_update is happy */
if (test_bit(AR5K_MODE_11A, ah->ah_modes))
ath5k_setcurmode(sc, AR5K_MODE_11A);
return 2212 + chan * 20;
}
-static unsigned int
-ath5k_copy_rates(struct ieee80211_rate *rates,
- const struct ath5k_rate_table *rt,
- unsigned int max)
-{
- unsigned int i, count;
-
- if (rt == NULL)
- return 0;
-
- for (i = 0, count = 0; i < rt->rate_count && max > 0; i++) {
- rates[count].bitrate = rt->rates[i].rate_kbps / 100;
- rates[count].hw_value = rt->rates[i].rate_code;
- rates[count].flags = rt->rates[i].modulation;
- count++;
- max--;
- }
-
- return count;
-}
-
static unsigned int
ath5k_copy_channels(struct ath5k_hw *ah,
struct ieee80211_channel *channels,
return count;
}
+static void
+ath5k_setup_rate_idx(struct ath5k_softc *sc, struct ieee80211_supported_band *b)
+{
+ u8 i;
+
+ for (i = 0; i < AR5K_MAX_RATES; i++)
+ sc->rate_idx[b->band][i] = -1;
+
+ for (i = 0; i < b->n_bitrates; i++) {
+ sc->rate_idx[b->band][b->bitrates[i].hw_value] = i;
+ if (b->bitrates[i].hw_value_short)
+ sc->rate_idx[b->band][b->bitrates[i].hw_value_short] = i;
+ }
+}
+
static int
-ath5k_getchannels(struct ieee80211_hw *hw)
+ath5k_setup_bands(struct ieee80211_hw *hw)
{
struct ath5k_softc *sc = hw->priv;
struct ath5k_hw *ah = sc->ah;
- struct ieee80211_supported_band *sbands = sc->sbands;
- const struct ath5k_rate_table *hw_rates;
- unsigned int max_r, max_c, count_r, count_c;
- int mode2g = AR5K_MODE_11G;
+ struct ieee80211_supported_band *sband;
+ int max_c, count_c = 0;
+ int i;
BUILD_BUG_ON(ARRAY_SIZE(sc->sbands) < IEEE80211_NUM_BANDS);
-
- max_r = ARRAY_SIZE(sc->rates);
max_c = ARRAY_SIZE(sc->channels);
- count_r = count_c = 0;
/* 2GHz band */
- if (!test_bit(AR5K_MODE_11G, sc->ah->ah_capabilities.cap_mode)) {
- mode2g = AR5K_MODE_11B;
- if (!test_bit(AR5K_MODE_11B,
- sc->ah->ah_capabilities.cap_mode))
- mode2g = -1;
- }
+ sband = &sc->sbands[IEEE80211_BAND_2GHZ];
+ sband->band = IEEE80211_BAND_2GHZ;
+ sband->bitrates = &sc->rates[IEEE80211_BAND_2GHZ][0];
- if (mode2g > 0) {
- struct ieee80211_supported_band *sband =
- &sbands[IEEE80211_BAND_2GHZ];
+ if (test_bit(AR5K_MODE_11G, sc->ah->ah_capabilities.cap_mode)) {
+ /* G mode */
+ memcpy(sband->bitrates, &ath5k_rates[0],
+ sizeof(struct ieee80211_rate) * 12);
+ sband->n_bitrates = 12;
- sband->bitrates = sc->rates;
sband->channels = sc->channels;
-
- sband->band = IEEE80211_BAND_2GHZ;
sband->n_channels = ath5k_copy_channels(ah, sband->channels,
- mode2g, max_c);
-
- hw_rates = ath5k_hw_get_rate_table(ah, mode2g);
- sband->n_bitrates = ath5k_copy_rates(sband->bitrates,
- hw_rates, max_r);
+ AR5K_MODE_11G, max_c);
+ hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
count_c = sband->n_channels;
- count_r = sband->n_bitrates;
+ max_c -= count_c;
+ } else if (test_bit(AR5K_MODE_11B, sc->ah->ah_capabilities.cap_mode)) {
+ /* B mode */
+ memcpy(sband->bitrates, &ath5k_rates[0],
+ sizeof(struct ieee80211_rate) * 4);
+ sband->n_bitrates = 4;
+
+ /* 5211 only supports B rates and uses 4bit rate codes
+ * (e.g normally we have 0x1B for 1M, but on 5211 we have 0x0B)
+ * fix them up here:
+ */
+ if (ah->ah_version == AR5K_AR5211) {
+ for (i = 0; i < 4; i++) {
+ sband->bitrates[i].hw_value =
+ sband->bitrates[i].hw_value & 0xF;
+ sband->bitrates[i].hw_value_short =
+ sband->bitrates[i].hw_value_short & 0xF;
+ }
+ }
- hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
+ sband->channels = sc->channels;
+ sband->n_channels = ath5k_copy_channels(ah, sband->channels,
+ AR5K_MODE_11B, max_c);
- max_r -= count_r;
+ hw->wiphy->bands[IEEE80211_BAND_2GHZ] = sband;
+ count_c = sband->n_channels;
max_c -= count_c;
-
}
+ ath5k_setup_rate_idx(sc, sband);
- /* 5GHz band */
-
+ /* 5GHz band, A mode */
if (test_bit(AR5K_MODE_11A, sc->ah->ah_capabilities.cap_mode)) {
- struct ieee80211_supported_band *sband =
- &sbands[IEEE80211_BAND_5GHZ];
+ sband = &sc->sbands[IEEE80211_BAND_5GHZ];
+ sband->band = IEEE80211_BAND_5GHZ;
+ sband->bitrates = &sc->rates[IEEE80211_BAND_5GHZ][0];
- sband->bitrates = &sc->rates[count_r];
- sband->channels = &sc->channels[count_c];
+ memcpy(sband->bitrates, &ath5k_rates[4],
+ sizeof(struct ieee80211_rate) * 8);
+ sband->n_bitrates = 8;
- sband->band = IEEE80211_BAND_5GHZ;
+ sband->channels = &sc->channels[count_c];
sband->n_channels = ath5k_copy_channels(ah, sband->channels,
AR5K_MODE_11A, max_c);
- hw_rates = ath5k_hw_get_rate_table(ah, AR5K_MODE_11A);
- sband->n_bitrates = ath5k_copy_rates(sband->bitrates,
- hw_rates, max_r);
-
hw->wiphy->bands[IEEE80211_BAND_5GHZ] = sband;
}
+ ath5k_setup_rate_idx(sc, sband);
ath5k_debug_dump_bands(sc);
ATH5K_DBG(sc, ATH5K_DEBUG_MODE, "RX filter 0x%x\n", rfilt);
}
-/*
- * Match the hw provided rate index (through descriptors)
- * to an index for sc->curband->bitrates, so it can be used
- * by the stack.
- *
- * This one is a little bit tricky but i think i'm right
- * about this...
- *
- * We have 4 rate tables in the following order:
- * XR (4 rates)
- * 802.11a (8 rates)
- * 802.11b (4 rates)
- * 802.11g (12 rates)
- * that make the hw rate table.
- *
- * Lets take a 5211 for example that supports a and b modes only.
- * First comes the 802.11a table and then 802.11b (total 12 rates).
- * When hw returns eg. 11 it points to the last 802.11b rate (11Mbit),
- * if it returns 2 it points to the second 802.11a rate etc.
- *
- * Same goes for 5212 who has xr/a/b/g support (total 28 rates).
- * First comes the XR table, then 802.11a, 802.11b and 802.11g.
- * When hw returns eg. 27 it points to the last 802.11g rate (54Mbits) etc
- */
-static void
-ath5k_set_total_hw_rates(struct ath5k_softc *sc) {
-
- struct ath5k_hw *ah = sc->ah;
-
- if (test_bit(AR5K_MODE_11A, ah->ah_modes))
- sc->a_rates = 8;
-
- if (test_bit(AR5K_MODE_11B, ah->ah_modes))
- sc->b_rates = 4;
-
- if (test_bit(AR5K_MODE_11G, ah->ah_modes))
- sc->g_rates = 12;
-
- /* XXX: Need to see what what happens when
- xr disable bits in eeprom are set */
- if (ah->ah_version >= AR5K_AR5212)
- sc->xr_rates = 4;
-
-}
-
static inline int
-ath5k_hw_to_driver_rix(struct ath5k_softc *sc, int hw_rix) {
-
- int mac80211_rix;
-
- if(sc->curband->band == IEEE80211_BAND_2GHZ) {
- /* We setup a g ratetable for both b/g modes */
- mac80211_rix =
- hw_rix - sc->b_rates - sc->a_rates - sc->xr_rates;
- } else {
- mac80211_rix = hw_rix - sc->xr_rates;
- }
-
- /* Something went wrong, fallback to basic rate for this band */
- if ((mac80211_rix >= sc->curband->n_bitrates) ||
- (mac80211_rix <= 0 ))
- mac80211_rix = 1;
-
- return mac80211_rix;
+ath5k_hw_to_driver_rix(struct ath5k_softc *sc, int hw_rix)
+{
+ WARN_ON(hw_rix < 0 || hw_rix > AR5K_MAX_RATES);
+ return sc->rate_idx[sc->curband->band][hw_rix];
}
-
-
-
/***************\
* Buffers setup *
\***************/
rxs.rate_idx = ath5k_hw_to_driver_rix(sc, rs.rs_rate);
rxs.flag |= ath5k_rx_decrypted(sc, ds, skb, &rs);
+#if 0 /* add rxs.flag SHORTPRE once it is in mac80211 */
+ if (rs.rs_rate >= ATH5K_RATE_CODE_2M &&
+ rs.rs_rate <= ATH5K_RATE_CODE_11M &&
+ rs.rs_rate & AR5K_SET_SHORT_PREAMBLE)
+ rxs.flag |= RX_FLAG_SHORTPRE;
+#endif
ath5k_debug_dump_skb(sc, skb, "RX ", 0);
/* check beacons in IBSS mode */
#include "base.h"
#include "debug.h"
-/* Rate tables */
-static const struct ath5k_rate_table ath5k_rt_11a = AR5K_RATES_11A;
-static const struct ath5k_rate_table ath5k_rt_11b = AR5K_RATES_11B;
-static const struct ath5k_rate_table ath5k_rt_11g = AR5K_RATES_11G;
-static const struct ath5k_rate_table ath5k_rt_turbo = AR5K_RATES_TURBO;
-static const struct ath5k_rate_table ath5k_rt_xr = AR5K_RATES_XR;
-
/* Prototypes */
static int ath5k_hw_nic_reset(struct ath5k_hw *, u32);
static int ath5k_hw_nic_wakeup(struct ath5k_hw *, int, bool);
return 0;
}
-/*
- * Get the rate table for a specific operation mode
- */
-const struct ath5k_rate_table *ath5k_hw_get_rate_table(struct ath5k_hw *ah,
- unsigned int mode)
-{
- ATH5K_TRACE(ah->ah_sc);
-
- if (!test_bit(mode, ah->ah_capabilities.cap_mode))
- return NULL;
-
- /* Get rate tables */
- switch (mode) {
- case AR5K_MODE_11A:
- return &ath5k_rt_11a;
- case AR5K_MODE_11A_TURBO:
- return &ath5k_rt_turbo;
- case AR5K_MODE_11B:
- return &ath5k_rt_11b;
- case AR5K_MODE_11G:
- return &ath5k_rt_11g;
- case AR5K_MODE_11G_TURBO:
- return &ath5k_rt_xr;
- }
-
- return NULL;
-}
-
/*
* Free the ath5k_hw struct
*/
return 0;
}
+
+/*
+ * index into rates for control rates, we can set it up like this because
+ * this is only used for AR5212 and we know it supports G mode
+ */
+static int control_rates[] =
+ { 0, 1, 1, 1, 4, 4, 6, 6, 8, 8, 8, 8 };
+
/**
* ath5k_hw_write_rate_duration - set rate duration during hw resets
*
* @ah: the &struct ath5k_hw
* @mode: one of enum ath5k_driver_mode
*
- * Write the rate duration table for the current mode upon hw reset. This
- * is a helper for ath5k_hw_reset(). It seems all this is doing is setting
- * an ACK timeout for the hardware for the current mode for each rate. The
- * rates which are capable of short preamble (802.11b rates 2Mbps, 5.5Mbps,
- * and 11Mbps) have another register for the short preamble ACK timeout
- * calculation.
- *
+ * Write the rate duration table upon hw reset. This is a helper for
+ * ath5k_hw_reset(). It seems all this is doing is setting an ACK timeout for
+ * the hardware for the current mode for each rate. The rates which are capable
+ * of short preamble (802.11b rates 2Mbps, 5.5Mbps, and 11Mbps) have another
+ * register for the short preamble ACK timeout calculation.
*/
static inline void ath5k_hw_write_rate_duration(struct ath5k_hw *ah,
unsigned int mode)
{
struct ath5k_softc *sc = ah->ah_sc;
- const struct ath5k_rate_table *rt;
- struct ieee80211_rate srate = {};
+ struct ieee80211_rate *rate;
unsigned int i;
- /* Get rate table for the current operating mode */
- rt = ath5k_hw_get_rate_table(ah, mode);
-
/* Write rate duration table */
- for (i = 0; i < rt->rate_count; i++) {
- const struct ath5k_rate *rate, *control_rate;
-
+ for (i = 0; i < sc->sbands[IEEE80211_BAND_2GHZ].n_bitrates; i++) {
u32 reg;
u16 tx_time;
- rate = &rt->rates[i];
- control_rate = &rt->rates[rate->control_rate];
+ rate = &sc->sbands[IEEE80211_BAND_2GHZ].bitrates[control_rates[i]];
/* Set ACK timeout */
- reg = AR5K_RATE_DUR(rate->rate_code);
-
- srate.bitrate = control_rate->rate_kbps/100;
+ reg = AR5K_RATE_DUR(rate->hw_value);
/* An ACK frame consists of 10 bytes. If you add the FCS,
* which ieee80211_generic_frame_duration() adds,
* ieee80211_duration() for a brief description of
* what rate we should choose to TX ACKs. */
tx_time = le16_to_cpu(ieee80211_generic_frame_duration(sc->hw,
- sc->vif, 10, &srate));
+ sc->vif, 10, rate));
ath5k_hw_reg_write(ah, tx_time, reg);
- if (!HAS_SHPREAMBLE(i))
+ if (!(rate->flags & IEEE80211_RATE_SHORT_PREAMBLE))
continue;
/*
projects / openwrt / staging / blogic.git / commitdiff