staging: brcm80211: made overlapping WMM functions more similar

Code cleanup. Functions wlc_edcf_setparams() and
wlc_wme_setparams() duplicate code amongst each other. This commit
attempts to make life easier for the reviewer, by introducing non
functional changes that bring wlc_edcf_setparams() more in line
with wlc_wme_setparams(). As a result the subsequent commit can be
reviewed more easily.

Signed-off-by: Roland Vossen <rvossen@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/brcm80211/brcmsmac/wlc_main.c b/drivers/staging/brcm80211/brcmsmac/wlc_main.c
index 7b91ea7befb5f919d943d3ce0204731746e7295e..f178146254a143d178890513b99d0faeb8a504d0 100644 (file)
--- a/drivers/staging/brcm80211/brcmsmac/wlc_main.c
+++ b/drivers/staging/brcm80211/brcmsmac/wlc_main.c
@@ -1435,16 +1435,21 @@ void wlc_wme_setparams(struct wlc_info *wlc, u16 aci,
 
 void wlc_edcf_setparams(struct wlc_info *wlc, bool suspend)
 {
-       uint aci, i, j;
+       u16 aci;
+       int i_ac, i;
        edcf_acparam_t *edcf_acp;
        shm_acparams_t acp_shm;
        u16 *shm_entry;
+       struct ieee80211_tx_queue_params txq_pars;
+       struct ieee80211_tx_queue_params *params = &txq_pars;
 
        ASSERT(wlc);
 
        /* Only apply params if the core is out of reset and has clocks */
-       if (!wlc->clk)
+       if (!wlc->clk) {
+               WL_ERROR("wl%d: %s : no-clock\n", wlc->pub->unit, __func__);
                return;
+       }
 
        /*
         * AP uses AC params from wme_param_ie_ap.
@@ -1456,7 +1461,7 @@ void wlc_edcf_setparams(struct wlc_info *wlc, bool suspend)
 
        wlc->wme_admctl = 0;
 
-       for (i = 0; i < AC_COUNT; i++, edcf_acp++) {
+       for (i_ac = 0; i_ac < AC_COUNT; i_ac++, edcf_acp++) {
                memset((char *)&acp_shm, 0, sizeof(shm_acparams_t));
                /* find out which ac this set of params applies to */
                aci = (edcf_acp->ACI & EDCF_ACI_MASK) >> EDCF_ACI_SHIFT;
@@ -1467,12 +1472,13 @@ void wlc_edcf_setparams(struct wlc_info *wlc, bool suspend)
                }
 
                /* fill in shm ac params struct */
-               acp_shm.txop = le16_to_cpu(edcf_acp->TXOP);
+               params->txop = edcf_acp->TXOP;
+               acp_shm.txop = le16_to_cpu(params->txop);
                /* convert from units of 32us to us for ucode */
-               wlc->edcf_txop[aci] = acp_shm.txop =
+               wlc->edcf_txop[aci & 0x3] = acp_shm.txop =
                    EDCF_TXOP2USEC(acp_shm.txop);
-               acp_shm.aifs = (edcf_acp->ACI & EDCF_AIFSN_MASK);
-
+               params->aifs = edcf_acp->ACI;
+               acp_shm.aifs = (params->aifs & EDCF_AIFSN_MASK);
                if (aci == AC_VI && acp_shm.txop == 0
                    && acp_shm.aifs < EDCF_AIFSN_MAX)
                        acp_shm.aifs++;
@@ -1485,10 +1491,12 @@ void wlc_edcf_setparams(struct wlc_info *wlc, bool suspend)
                }
 
                /* CWmin = 2^(ECWmin) - 1 */
-               acp_shm.cwmin = EDCF_ECW2CW(edcf_acp->ECW & EDCF_ECWMIN_MASK);
+               params->cw_min = EDCF_ECW2CW(edcf_acp->ECW & EDCF_ECWMIN_MASK);
+               acp_shm.cwmin = params->cw_min;
                /* CWmax = 2^(ECWmax) - 1 */
-               acp_shm.cwmax = EDCF_ECW2CW((edcf_acp->ECW & EDCF_ECWMAX_MASK)
+               params->cw_max = EDCF_ECW2CW((edcf_acp->ECW & EDCF_ECWMAX_MASK)
                                            >> EDCF_ECWMAX_SHIFT);
+               acp_shm.cwmax = params->cw_max;
                acp_shm.cwcur = acp_shm.cwmin;
                acp_shm.bslots =
                    R_REG(&wlc->regs->tsf_random) & acp_shm.cwcur;
@@ -1502,10 +1510,10 @@ void wlc_edcf_setparams(struct wlc_info *wlc, bool suspend)
 
                /* Fill in shm acparam table */
                shm_entry = (u16 *) &acp_shm;
-               for (j = 0; j < (int)sizeof(shm_acparams_t); j += 2)
+               for (i = 0; i < (int)sizeof(shm_acparams_t); i += 2)
                        wlc_write_shm(wlc,
                                      M_EDCF_QINFO +
-                                     wme_shmemacindex(aci) * M_EDCF_QLEN + j,
+                                     wme_shmemacindex(aci) * M_EDCF_QLEN + i,
                                      *shm_entry++);
        }