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sd_card & imx53: simplify IRQ handler

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Less switch cases.

Ref #1497
This commit is contained in:
Martin Stein 2015-10-22 16:57:03 +02:00 committed by Christian Helmuth
parent 48e7d29686
commit 2b021ec54b
1 changed files with 10 additions and 14 deletions
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24
repos/os/src/drivers/sd_card/spec/imx53/esdhcv2.h
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@ -665,21 +665,19 @@ struct Esdhcv2_controller : private Esdhcv2, public Sd_card::Host_controller
* therefore not wait for a second IRQ when we've received a
* single signal the first time.
*/
Irqstat::access_t constexpr irq_cc_tc =
Irqstat::access_t constexpr irq_goal =
Irq::Cc::reg_mask() | Irq::Tc::reg_mask();
switch (irq) {
case Irq::Cc::reg_mask():
case Irq::Tc::reg_mask():
/* poll for the missing signal */
if (!wait_for<Irqstat>(irq_cc_tc, _delayer)) {
/* poll for the missing signal */
if (irq != irq_goal) {
if (!wait_for<Irqstat>(irq_goal, _delayer)) {
PERR("completion host signal timed out");
return false;
}
case irq_cc_tc:
/* acknowledge both completion signals */
write<Irqstat>(irq_cc_tc);
}
/* acknowledge both completion signals */
write<Irqstat>(irq_goal);
if (!r) {
/*
* The "Auto Command 12" feature of the ESDHC seems to be
@ -687,11 +685,9 @@ struct Esdhcv2_controller : private Esdhcv2, public Sd_card::Host_controller
* timeout errors sometimes. Thus, we end such transfers
* manually.
*/
return r ? true : _abort_transmission();
default:
PERR("received unexpected host signal");
return false;
if (!_abort_transmission()) { return false; }
}
return true;
}
/**