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ath5k: MRR support and 2GHz radio override belong in ah_capabilities 

MRR support and 2GHz radio override belong in ah_capabilities and we
should use them (e.g. so far  we used to set mrr descriptor without
checking if MRR support is enabled + we checked for MRR support 2
times, one by trying to set up an MRR descriptor and another one based
on MAC version).

Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Nick Kossifidis 2011-11-25 20:40:28 +02:00 committed by John W. Linville
parent 84e1e7373b
commit 86f62d9b70
5 changed files with 46 additions and 47 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/net/wireless/ath/ath5k/ahb.c
View File

@ -166,7 +166,9 @@ static int ath_ahb_probe(struct platform_device *pdev)
if (to_platform_device(ah->dev)->id == 0 &&
(bcfg->config->flags & (BD_WLAN0 | BD_WLAN1)) ==
(BD_WLAN1 | BD_WLAN0))
__set_bit(ATH_STAT_2G_DISABLED, ah->status);
ah->ah_capabilities.cap_needs_2GHz_ovr = true;
else
ah->ah_capabilities.cap_needs_2GHz_ovr = false;
}
ret = ath5k_init_ah(ah, &ath_ahb_bus_ops);

12
drivers/net/wireless/ath/ath5k/ath5k.h
View File

@ -1159,6 +1159,8 @@ struct ath5k_capabilities {
} cap_queues;
bool cap_has_phyerr_counters;
bool cap_has_mrr_support;
bool cap_needs_2GHz_ovr;
};
/* size of noise floor history (keep it a power of two) */
@ -1274,13 +1276,11 @@ struct ath5k_hw {
dma_addr_t desc_daddr; /* DMA (physical) address */
size_t desc_len; /* size of TX/RX descriptors */
DECLARE_BITMAP(status, 6);
DECLARE_BITMAP(status, 4);
#define ATH_STAT_INVALID 0 /* disable hardware accesses */
#define ATH_STAT_MRRETRY 1 /* multi-rate retry support */
#define ATH_STAT_PROMISC 2
#define ATH_STAT_LEDSOFT 3 /* enable LED gpio status */
#define ATH_STAT_STARTED 4 /* opened & irqs enabled */
#define ATH_STAT_2G_DISABLED 5 /* multiband radio without 2G */
#define ATH_STAT_PROMISC 1
#define ATH_STAT_LEDSOFT 2 /* enable LED gpio status */
#define ATH_STAT_STARTED 3 /* opened & irqs enabled */
unsigned int filter_flags; /* HW flags, AR5K_RX_FILTER_* */
struct ieee80211_channel *curchan; /* current h/w channel */

5
drivers/net/wireless/ath/ath5k/attach.c
View File

@ -306,11 +306,6 @@ int ath5k_hw_init(struct ath5k_hw *ah)
goto err;
}
if (test_bit(ATH_STAT_2G_DISABLED, ah->status)) {
__clear_bit(AR5K_MODE_11B, ah->ah_capabilities.cap_mode);
__clear_bit(AR5K_MODE_11G, ah->ah_capabilities.cap_mode);
}
/* Crypto settings */
common->keymax = (ah->ah_version == AR5K_AR5210 ?
AR5K_KEYTABLE_SIZE_5210 : AR5K_KEYTABLE_SIZE_5211);

47
drivers/net/wireless/ath/ath5k/base.c
View File

@ -725,22 +725,25 @@ ath5k_txbuf_setup(struct ath5k_hw *ah, struct ath5k_buf *bf,
if (ret)
goto err_unmap;
memset(mrr_rate, 0, sizeof(mrr_rate));
memset(mrr_tries, 0, sizeof(mrr_tries));
for (i = 0; i < 3; i++) {
rate = ieee80211_get_alt_retry_rate(ah->hw, info, i);
if (!rate)
break;
/* Set up MRR descriptor */
if (ah->ah_capabilities.cap_has_mrr_support) {
memset(mrr_rate, 0, sizeof(mrr_rate));
memset(mrr_tries, 0, sizeof(mrr_tries));
for (i = 0; i < 3; i++) {
rate = ieee80211_get_alt_retry_rate(ah->hw, info, i);
if (!rate)
break;
mrr_rate[i] = rate->hw_value;
mrr_tries[i] = info->control.rates[i + 1].count;
mrr_rate[i] = rate->hw_value;
mrr_tries[i] = info->control.rates[i + 1].count;
}
ath5k_hw_setup_mrr_tx_desc(ah, ds,
mrr_rate[0], mrr_tries[0],
mrr_rate[1], mrr_tries[1],
mrr_rate[2], mrr_tries[2]);
}
ath5k_hw_setup_mrr_tx_desc(ah, ds,
mrr_rate[0], mrr_tries[0],
mrr_rate[1], mrr_tries[1],
mrr_rate[2], mrr_tries[2]);
ds->ds_link = 0;
ds->ds_data = bf->skbaddr;
@ -2489,8 +2492,8 @@ ath5k_init_ah(struct ath5k_hw *ah, const struct ath_bus_ops *bus_ops)
if (ret)
goto err_irq;
/* set up multi-rate retry capabilities */
if (ah->ah_version == AR5K_AR5212) {
/* Set up multi-rate retry capabilities */
if (ah->ah_capabilities.cap_has_mrr_support) {
hw->max_rates = 4;
hw->max_rate_tries = max(AR5K_INIT_RETRY_SHORT,
AR5K_INIT_RETRY_LONG);
@ -2848,20 +2851,6 @@ ath5k_init(struct ieee80211_hw *hw)
int ret;
/*
* Check if the MAC has multi-rate retry support.
* We do this by trying to setup a fake extended
* descriptor. MACs that don't have support will
* return false w/o doing anything. MACs that do
* support it will return true w/o doing anything.
*/
ret = ath5k_hw_setup_mrr_tx_desc(ah, NULL, 0, 0, 0, 0, 0, 0);
if (ret < 0)
goto err;
if (ret > 0)
__set_bit(ATH_STAT_MRRETRY, ah->status);
/*
* Collect the channel list. The 802.11 layer
* is responsible for filtering this list based

25
drivers/net/wireless/ath/ath5k/caps.c
View File

@ -85,12 +85,19 @@ int ath5k_hw_set_capabilities(struct ath5k_hw *ah)
caps->cap_range.range_2ghz_min = 2412;
caps->cap_range.range_2ghz_max = 2732;
if (AR5K_EEPROM_HDR_11B(ee_header))
__set_bit(AR5K_MODE_11B, caps->cap_mode);
/* Override 2GHz modes on SoCs that need it
* NOTE: cap_needs_2GHz_ovr gets set from
* ath_ahb_probe */
if (!caps->cap_needs_2GHz_ovr) {
if (AR5K_EEPROM_HDR_11B(ee_header))
__set_bit(AR5K_MODE_11B,
caps->cap_mode);
if (AR5K_EEPROM_HDR_11G(ee_header) &&
ah->ah_version != AR5K_AR5211)
__set_bit(AR5K_MODE_11G, caps->cap_mode);
if (AR5K_EEPROM_HDR_11G(ee_header) &&
ah->ah_version != AR5K_AR5211)
__set_bit(AR5K_MODE_11G,
caps->cap_mode);
}
}
}
@ -103,12 +110,18 @@ int ath5k_hw_set_capabilities(struct ath5k_hw *ah)
else
caps->cap_queues.q_tx_num = AR5K_NUM_TX_QUEUES;
/* newer hardware has PHY error counters */
/* Newer hardware has PHY error counters */
if (ah->ah_mac_srev >= AR5K_SREV_AR5213A)
caps->cap_has_phyerr_counters = true;
else
caps->cap_has_phyerr_counters = false;
/* MACs since AR5212 have MRR support */
if (ah->ah_version == AR5K_AR5212)
caps->cap_has_mrr_support = true;
else
caps->cap_has_mrr_support = false;
return 0;
}