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wct4xxp: Add has_e1_span() helper.

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All those checks for wc->t1e1 span appear to basically be there to
determine if there are *any* E1 spans exported by the card. We can make
that explicit by wrapping those tests with a has_e1_span() inline
function to help with readability.

Signed-off-by: Shaun Ruffell <sruffell@digium.com>
Acked-by: Michael Spiceland <mspiceland@digium.com>
Acked-by: Russ Meyerriecks <rmeyerriecks@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@10244 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This commit is contained in:
Shaun Ruffell 2011-10-20 20:53:00 +00:00
parent 19e874f682
commit 73764a1dc9
1 changed files with 21 additions and 14 deletions
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31
drivers/dahdi/wct4xxp/base.c
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@ -41,6 +41,7 @@
#include <linux/delay.h>
#include <linux/moduleparam.h>
#include <stdbool.h>
#include <dahdi/kernel.h>
#include "wct4xxp.h"
@ -374,6 +375,11 @@ struct t4 {
};
static inline bool has_e1_span(const struct t4 *wc)
{
return (wc->t1e1) != 0;
}
#ifdef VPM_SUPPORT
static void t4_vpm450_init(struct t4 *wc);
@ -766,7 +772,7 @@ static void t4_check_vpm450(struct t4 *wc)
while(vpm450m_getdtmf(wc->vpm450m, &channel, &tone, &start)) {
span = channel & 0x3;
channel >>= 2;
if (!wc->t1e1)
if (!has_e1_span(wc))
channel -= 5;
else
channel -= 1;
@ -800,6 +806,7 @@ static void t4_check_vpm450(struct t4 *wc)
}
}
}
#endif /* VPM_SUPPORT */
static void hdlc_stop(struct t4 *wc, unsigned int span)
@ -1049,7 +1056,7 @@ static int t4_echocan_create(struct dahdi_chan *chan,
(*ec)->ops = ops;
(*ec)->features = *features;
channel = wc->t1e1 ? chan->chanpos : chan->chanpos + 4;
channel = has_e1_span(wc) ? chan->chanpos : chan->chanpos + 4;
if (wc->vpm450m) {
channel = channel << 2;
@ -1071,7 +1078,7 @@ static void echocan_free(struct dahdi_chan *chan, struct dahdi_echocan_state *ec
memset(ec, 0, sizeof(*ec));
channel = wc->t1e1 ? chan->chanpos : chan->chanpos + 4;
channel = has_e1_span(wc) ? chan->chanpos : chan->chanpos + 4;
if (wc->vpm450m) {
channel = channel << 2;
@ -1124,7 +1131,7 @@ static int t4_ioctl(struct dahdi_chan *chan, unsigned int cmd, unsigned long dat
clear_bit(chan->chanpos - 1, &ts->dtmfmutemask);
channel = (chan->chanpos) << 2;
if (!wc->t1e1)
if (!has_e1_span(wc))
channel += (4 << 2);
channel |= chan->span->offset;
vpm450m_setdtmf(wc->vpm450m, channel, j & DAHDI_TONEDETECT_ON,
@ -1729,7 +1736,7 @@ static void setup_chunks(struct t4 *wc, int which)
int x, y;
int gen2;
if (!wc->t1e1)
if (!has_e1_span(wc))
offset += 4;
gen2 = (wc->tspans[0]->spanflags & FLAG_2NDGEN);
@ -1903,7 +1910,7 @@ static void t4_serial_setup(struct t4 *wc, int unit)
t4_framer_out(wc, unit, FRMR_SIC2, 0x20 | (unit << 1)); /* SIC2: No FFS, no center receive eliastic buffer, phase */
t4_framer_out(wc, unit, FRMR_SIC3, 0x04); /* SIC3: Edges for capture */
t4_framer_out(wc, unit, FRMR_CMR2, 0x00); /* CMR2: We provide sync and clock for tx and rx. */
if (!wc->t1e1) { /* T1 mode */
if (!has_e1_span(wc)) { /* T1 mode */
t4_framer_out(wc, unit, FRMR_XC0, 0x03); /* XC0: Normal operation of Sa-bits */
t4_framer_out(wc, unit, FRMR_XC1, 0x84); /* XC1: 0 offset */
if (wc->tspans[unit]->spantype == TYPE_J1)
@ -2492,7 +2499,7 @@ static void t4_receiveprep(struct t4 *wc, int irq)
int x,y,z;
unsigned int tmp;
int offset=0;
if (!wc->t1e1)
if (!has_e1_span(wc))
offset = 4;
if (irq & 1) {
/* First part */
@ -2520,7 +2527,7 @@ static void t4_receiveprep(struct t4 *wc, int irq)
wc->tspans[1]->span.chans[z]->readchunk[x] = (tmp & 0xff0000) >> 16;
wc->tspans[0]->span.chans[z]->readchunk[x] = tmp >> 24;
}
if (wc->t1e1) {
if (has_e1_span(wc)) {
if (wc->e1recover > 0)
wc->e1recover--;
tmp = readchunk[0];
@ -2627,7 +2634,7 @@ static void t4_transmitprep(struct t4 *wc, int irq)
int x, y, z;
unsigned int tmp;
int offset = 0;
if (!wc->t1e1)
if (!has_e1_span(wc))
offset = 4;
if (irq & 1) {
/* First part */
@ -2650,7 +2657,7 @@ static void t4_transmitprep(struct t4 *wc, int irq)
(wc->tspans[0]->span.chans[z]->writechunk[x] << 24);
writechunk[z+offset] = tmp;
}
if (wc->t1e1) {
if (has_e1_span(wc)) {
for (z=24;z<31;z++) {
/* Only E1 channels now */
tmp = 0;
@ -3806,7 +3813,7 @@ static void t4_tsi_assign(struct t4 *wc, int fromspan, int fromchan, int tospan,
fromts = (fromspan << 5) |(fromchan);
tots = (tospan << 5) | (tochan);
if (!wc->t1e1) {
if (!has_e1_span(wc)) {
fromts += 4;
tots += 4;
}
@ -3826,7 +3833,7 @@ static void t4_tsi_unassign(struct t4 *wc, int tospan, int tochan)
tots = (tospan << 5) | (tochan);
if (!wc->t1e1)
if (!has_e1_span(wc))
tots += 4;
spin_lock_irqsave(&wc->reglock, flags);
wc->dmactrl &= ~0x00007fff;