diff options
Diffstat (limited to 'sim')
| -rw-r--r-- | sim/bfin/ChangeLog | 6 | ||||
| -rw-r--r-- | sim/bfin/dv-bfin_gpio.c | 14 |
2 files changed, 16 insertions, 4 deletions
diff --git a/sim/bfin/ChangeLog b/sim/bfin/ChangeLog index d4a36ca..953192f 100644 --- a/sim/bfin/ChangeLog +++ b/sim/bfin/ChangeLog @@ -1,5 +1,11 @@ 2011-03-24 Mike Frysinger <vapier@gentoo.org> + * dv-bfin_gpio.c (bfin_gpio_port_event): Split dir/inen bit checking. + Normalize "level" to 0/1 values. Shift "level" over by "my_port". + Invert port->both bit check. + +2011-03-24 Mike Frysinger <vapier@gentoo.org> + * dv-bfin_gpio.c (bfin_gpio_io_write_buffer): Subtract 2 from the valuep pointer for clear MMRs, 4 for set MMRs, and 6 for toggle MMRs. diff --git a/sim/bfin/dv-bfin_gpio.c b/sim/bfin/dv-bfin_gpio.c index 6b18a40..e9b79a8 100644 --- a/sim/bfin/dv-bfin_gpio.c +++ b/sim/bfin/dv-bfin_gpio.c @@ -198,15 +198,21 @@ bfin_gpio_port_event (struct hw *me, int my_port, struct hw *source, bool olvl, nlvl; bu32 bit = (1 << my_port); - /* Only screw with state if this pin is set as an input. */ - if (!(port->dir & port->inen & bit)) + /* Normalize the level value. A simulated device can send any value + it likes to us, but in reality we only care about 0 and 1. This + lets us assume only those two values below. */ + level = !!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; /* Get the old pin state for calculating an interrupt. */ olvl = !!(port->data & bit); /* Update the new pin state. */ - port->data = (port->data & ~bit) | (level << bit); + port->data = (port->data & ~bit) | (level << my_port); /* See if this state transition will generate an interrupt. */ nlvl = !!(port->data & bit); @@ -214,7 +220,7 @@ bfin_gpio_port_event (struct hw *me, int my_port, struct hw *source, if (port->edge & bit) { /* Pin is edge triggered. */ - if (!(port->both & bit)) + if (port->both & bit) { /* Both edges. */ if (olvl == nlvl) |