Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-18 01:51:53 +00:00
Code Issues Packages Projects Releases Wiki Activity

ath5k: use direct function calls for descriptors when possible

Browse Source 
Use direct function calls for ath5k_hw_setup_rx_desc() and
ath5k_hw_setup_mrr_tx_desc() instead of a function pointer which always pointed
to the same function in the case of ath5k_hw_setup_rx_desc() and which is
easily unified in the case of ath5k_hw_setup_mrr_tx_desc().

Also simplify the initialization function for the remaining function pointers.

Signed-off-by: Bruno Randolf <br1@einfach.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Bruno Randolf 2010-06-16 19:12:01 +09:00 committed by John W. Linville
parent 02a78b42f8
commit a666819354
3 changed files with 21 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/net/wireless/ath/ath5k/ath5k.h
View File

@ -1127,15 +1127,10 @@ struct ath5k_hw {
/*
* Function pointers
*/
int (*ah_setup_rx_desc)(struct ath5k_hw *ah, struct ath5k_desc *desc,
u32 size, unsigned int flags);
int (*ah_setup_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
unsigned int, unsigned int, int, enum ath5k_pkt_type,
unsigned int, unsigned int, unsigned int, unsigned int,
unsigned int, unsigned int, unsigned int, unsigned int);
int (*ah_setup_mrr_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
unsigned int, unsigned int, unsigned int, unsigned int,
unsigned int, unsigned int);
int (*ah_proc_tx_desc)(struct ath5k_hw *, struct ath5k_desc *,
struct ath5k_tx_status *);
int (*ah_proc_rx_desc)(struct ath5k_hw *, struct ath5k_desc *,
@ -1236,6 +1231,11 @@ int ath5k_hw_set_slot_time(struct ath5k_hw *ah, unsigned int slot_time);
/* Hardware Descriptor Functions */
int ath5k_hw_init_desc_functions(struct ath5k_hw *ah);
int ath5k_hw_setup_rx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
u32 size, unsigned int flags);
int ath5k_hw_setup_mrr_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
unsigned int tx_rate1, u_int tx_tries1, u_int tx_rate2,
u_int tx_tries2, unsigned int tx_rate3, u_int tx_tries3);
/* GPIO Functions */
void ath5k_hw_set_ledstate(struct ath5k_hw *ah, unsigned int state);

7
drivers/net/wireless/ath/ath5k/base.c
View File

@ -769,7 +769,8 @@ ath5k_attach(struct pci_dev *pdev, struct ieee80211_hw *hw)
* return false w/o doing anything. MAC's that do
* support it will return true w/o doing anything.
*/
ret = ah->ah_setup_mrr_tx_desc(ah, NULL, 0, 0, 0, 0, 0, 0);
ret = ath5k_hw_setup_mrr_tx_desc(ah, NULL, 0, 0, 0, 0, 0, 0);
if (ret < 0)
goto err;
if (ret > 0)
@ -1245,7 +1246,7 @@ ath5k_rxbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf)
ds = bf->desc;
ds->ds_link = bf->daddr; /* link to self */
ds->ds_data = bf->skbaddr;
ret = ah->ah_setup_rx_desc(ah, ds, ah->common.rx_bufsize, 0);
ret = ath5k_hw_setup_rx_desc(ah, ds, ah->common.rx_bufsize, 0);
if (ret) {
ATH5K_ERR(sc, "%s: could not setup RX desc\n", __func__);
return ret;
@ -1354,7 +1355,7 @@ ath5k_txbuf_setup(struct ath5k_softc *sc, struct ath5k_buf *bf,
mrr_tries[i] = info->control.rates[i + 1].count;
}
ah->ah_setup_mrr_tx_desc(ah, ds,
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]);

43
drivers/net/wireless/ath/ath5k/desc.c
View File

@ -277,13 +277,17 @@ static int ath5k_hw_setup_4word_tx_desc(struct ath5k_hw *ah,
/*
* Initialize a 4-word multi rate retry tx control descriptor on 5212
*/
static int
int
ath5k_hw_setup_mrr_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
unsigned int tx_rate1, u_int tx_tries1, u_int tx_rate2,
u_int tx_tries2, unsigned int tx_rate3, u_int tx_tries3)
{
struct ath5k_hw_4w_tx_ctl *tx_ctl;
/* no mrr support for cards older than 5212 */
if (ah->ah_version < AR5K_AR5212)
return 0;
/*
* Rates can be 0 as long as the retry count is 0 too.
* A zero rate and nonzero retry count will put the HW into a mode where
@ -323,15 +327,6 @@ ath5k_hw_setup_mrr_tx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
return 0;
}
/* no mrr support for cards older than 5212 */
static int
ath5k_hw_setup_no_mrr(struct ath5k_hw *ah, struct ath5k_desc *desc,
unsigned int tx_rate1, u_int tx_tries1, u_int tx_rate2,
u_int tx_tries2, unsigned int tx_rate3, u_int tx_tries3)
{
return 0;
}
/*
* Proccess the tx status descriptor on 5210/5211
*/
@ -480,8 +475,8 @@ static int ath5k_hw_proc_4word_tx_status(struct ath5k_hw *ah,
/*
* Initialize an rx control descriptor
*/
static int ath5k_hw_setup_rx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
u32 size, unsigned int flags)
int ath5k_hw_setup_rx_desc(struct ath5k_hw *ah, struct ath5k_desc *desc,
u32 size, unsigned int flags)
{
struct ath5k_hw_rx_ctl *rx_ctl;
@ -658,29 +653,15 @@ static int ath5k_hw_proc_5212_rx_status(struct ath5k_hw *ah,
*/
int ath5k_hw_init_desc_functions(struct ath5k_hw *ah)
{
if (ah->ah_version != AR5K_AR5210 &&
ah->ah_version != AR5K_AR5211 &&
ah->ah_version != AR5K_AR5212)
return -ENOTSUPP;
if (ah->ah_version == AR5K_AR5212) {
ah->ah_setup_rx_desc = ath5k_hw_setup_rx_desc;
ah->ah_setup_tx_desc = ath5k_hw_setup_4word_tx_desc;
ah->ah_setup_mrr_tx_desc = ath5k_hw_setup_mrr_tx_desc;
ah->ah_proc_tx_desc = ath5k_hw_proc_4word_tx_status;
} else {
ah->ah_setup_rx_desc = ath5k_hw_setup_rx_desc;
ah->ah_setup_tx_desc = ath5k_hw_setup_2word_tx_desc;
ah->ah_setup_mrr_tx_desc = ath5k_hw_setup_no_mrr;
ah->ah_proc_tx_desc = ath5k_hw_proc_2word_tx_status;
}
if (ah->ah_version == AR5K_AR5212)
ah->ah_proc_rx_desc = ath5k_hw_proc_5212_rx_status;
else if (ah->ah_version <= AR5K_AR5211)
} else if (ah->ah_version <= AR5K_AR5211) {
ah->ah_setup_tx_desc = ath5k_hw_setup_2word_tx_desc;
ah->ah_proc_tx_desc = ath5k_hw_proc_2word_tx_status;
ah->ah_proc_rx_desc = ath5k_hw_proc_5210_rx_status;
} else
return -ENOTSUPP;
return 0;
}