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sim: bfin: add hw tracing to gpio/sic port events 

Makes it a lot easier to find out what's going on with interrupt lines
if the ports have tracing output.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2011-03-25 00:13:57 +00:00
parent b72cc8e145
commit a31d4fd99d
3 changed files with 64 additions and 10 deletions
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10
sim/bfin/ChangeLog
View File

@ -1,3 +1,13 @@
2011-03-24 Mike Frysinger <vapier@gentoo.org>
* dv-bfin_gpio.c (bfin_gpio_port_event): Call HW_TRACE at every
major code flow point.
* dv-bfin_sic.c (bfin_sic_forward_interrupts): Call HW_TRACE just
before calling hw_port_event on ourselves.
(bfin_sic_52x_port_event, bfin_sic_537_port_event,
bfin_sic_54x_port_event, bfin_sic_561_port_event): Call HW_TRACE
at the start of the function.
2011-03-24 Mike Frysinger <vapier@gentoo.org>
* dv-bfin_gpio.c (bfin_gpio_port_event): Split dir/inen bit checking.

38
sim/bfin/dv-bfin_gpio.c
View File

@ -203,10 +203,16 @@ bfin_gpio_port_event (struct hw *me, int my_port, struct hw *source,
lets us assume only those two values below. */
level = !!level;
HW_TRACE ((me, "pin %i set to %i", my_port, level));
/* Only screw with state if this pin is set as an input, and the
input is actually enabled. */
if ((port->dir & bit) || !(port->inen & bit))
return;
{
HW_TRACE ((me, "ignoring level/int due to DIR=%i INEN=%i",
!!(port->dir & bit), !!(port->inen & bit)));
return;
}
/* Get the old pin state for calculating an interrupt. */
olvl = !!(port->data & bit);
@ -224,28 +230,48 @@ bfin_gpio_port_event (struct hw *me, int my_port, struct hw *source,
{
/* Both edges. */
if (olvl == nlvl)
return;
{
HW_TRACE ((me, "ignoring int due to EDGE=%i BOTH=%i lvl=%i->%i",
!!(port->edge & bit), !!(port->both & bit),
olvl, nlvl));
return;
}
}
else
{
/* Just one edge. */
if (!(((port->polar & bit) && olvl > nlvl)
|| (!(port->polar & bit) && olvl < nlvl)))
return;
{
HW_TRACE ((me, "ignoring int due to EDGE=%i POLAR=%i lvl=%i->%i",
!!(port->edge & bit), !!(port->polar & bit),
olvl, nlvl));
return;
}
}
}
else
{
/* Pin is level triggered. */
if (nlvl == !!(port->polar & bit))
return;
{
HW_TRACE ((me, "ignoring int due to EDGE=%i POLAR=%i lvl=%i",
!!(port->edge & bit), !!(port->polar & bit), nlvl));
return;
}
}
/* If the masks allow it, push the interrupt even higher. */
if (port->maska & bit)
hw_port_event (me, 0, 1);
{
HW_TRACE ((me, "pin %i triggered an int via mask a", my_port));
hw_port_event (me, 0, 1);
}
if (port->maskb & bit)
hw_port_event (me, 1, 1);
{
HW_TRACE ((me, "pin %i triggered an int via mask b", my_port));
hw_port_event (me, 1, 1);
}
}
static void

26
sim/bfin/dv-bfin_sic.c
View File

@ -127,6 +127,7 @@ bfin_sic_forward_interrupts (struct hw *me, bu32 *isr, bu32 *imask, bu32 *iar)
iar_idx = my_port / 8;
iar_off = (my_port % 8) * 4;
iar_val = (iar[iar_idx] & (0xf << iar_off)) >> iar_off;
HW_TRACE ((me, "forwarding int %i to CEC", IVG7 + iar_val));
hw_port_event (me, IVG7 + iar_val, 1);
}
}
@ -763,7 +764,11 @@ bfin_sic_52x_port_event (struct hw *me, int my_port, struct hw *source,
{
struct bfin_sic *sic = hw_data (me);
bu32 idx = DEC_SIC (my_port);
bu32 bit = 1 << DEC_PIN (my_port);
bu32 pin = DEC_PIN (my_port);
bu32 bit = 1 << pin;
HW_TRACE ((me, "processing system int from %i (SIC %u pin %u)",
my_port, idx, pin));
/* SIC only exists to forward interrupts from the system to the CEC. */
switch (idx)
@ -873,7 +878,12 @@ bfin_sic_537_port_event (struct hw *me, int my_port, struct hw *source,
int source_port, int level)
{
struct bfin_sic *sic = hw_data (me);
bu32 bit = 1 << DEC_PIN (my_port);
bu32 idx = DEC_SIC (my_port);
bu32 pin = DEC_PIN (my_port);
bu32 bit = 1 << pin;
HW_TRACE ((me, "processing system int from %i (SIC %u pin %u)",
my_port, idx, pin));
/* SIC only exists to forward interrupts from the system to the CEC. */
sic->bf537.isr |= bit;
@ -1056,7 +1066,11 @@ bfin_sic_54x_port_event (struct hw *me, int my_port, struct hw *source,
{
struct bfin_sic *sic = hw_data (me);
bu32 idx = DEC_SIC (my_port);
bu32 bit = 1 << DEC_PIN (my_port);
bu32 pin = DEC_PIN (my_port);
bu32 bit = 1 << pin;
HW_TRACE ((me, "processing system int from %i (SIC %u pin %u)",
my_port, idx, pin));
/* SIC only exists to forward interrupts from the system to the CEC. */
switch (idx)
@ -1156,7 +1170,11 @@ bfin_sic_561_port_event (struct hw *me, int my_port, struct hw *source,
{
struct bfin_sic *sic = hw_data (me);
bu32 idx = DEC_SIC (my_port);
bu32 bit = 1 << DEC_PIN (my_port);
bu32 pin = DEC_PIN (my_port);
bu32 bit = 1 << pin;
HW_TRACE ((me, "processing system int from %i (SIC %u pin %u)",
my_port, idx, pin));
/* SIC only exists to forward interrupts from the system to the CEC. */
switch (idx)