diff options
Diffstat (limited to 'hw/gpio')
| -rw-r--r-- | hw/gpio/max7310.c | 2 | ||||
| -rw-r--r-- | hw/gpio/omap_gpio.c | 13 | ||||
| -rw-r--r-- | hw/gpio/zaurus.c | 2 |
3 files changed, 7 insertions, 10 deletions
diff --git a/hw/gpio/max7310.c b/hw/gpio/max7310.c index 7fbf313..2f59b13 100644 --- a/hw/gpio/max7310.c +++ b/hw/gpio/max7310.c @@ -96,7 +96,7 @@ static int max7310_tx(I2CSlave *i2c, uint8_t data) case 0x01: /* Output port */ for (diff = (data ^ s->level) & ~s->direction; diff; diff &= ~(1 << line)) { - line = ffs(diff) - 1; + line = ctz32(diff); if (s->handler[line]) qemu_set_irq(s->handler[line], (data >> line) & 1); } diff --git a/hw/gpio/omap_gpio.c b/hw/gpio/omap_gpio.c index 9a43486..d92f8cf 100644 --- a/hw/gpio/omap_gpio.c +++ b/hw/gpio/omap_gpio.c @@ -125,8 +125,7 @@ static void omap_gpio_write(void *opaque, hwaddr addr, case 0x04: /* DATA_OUTPUT */ diff = (s->outputs ^ value) & ~s->dir; s->outputs = value; - while ((ln = ffs(diff))) { - ln --; + while ((ln = ctz32(diff)) != 32) { if (s->handler[ln]) qemu_set_irq(s->handler[ln], (value >> ln) & 1); diff &= ~(1 << ln); @@ -138,8 +137,7 @@ static void omap_gpio_write(void *opaque, hwaddr addr, s->dir = value; value = s->outputs & ~s->dir; - while ((ln = ffs(diff))) { - ln --; + while ((ln = ctz32(diff)) != 32) { if (s->handler[ln]) qemu_set_irq(s->handler[ln], (value >> ln) & 1); diff &= ~(1 << ln); @@ -253,8 +251,7 @@ static inline void omap2_gpio_module_out_update(struct omap2_gpio_s *s, s->outputs ^= diff; diff &= ~s->dir; - while ((ln = ffs(diff))) { - ln --; + while ((ln = ctz32(diff)) != 32) { qemu_set_irq(s->handler[ln], (s->outputs >> ln) & 1); diff &= ~(1 << ln); } @@ -442,8 +439,8 @@ static void omap2_gpio_module_write(void *opaque, hwaddr addr, s->dir = value; value = s->outputs & ~s->dir; - while ((ln = ffs(diff))) { - diff &= ~(1 <<-- ln); + while ((ln = ctz32(diff)) != 32) { + diff &= ~(1 << ln); qemu_set_irq(s->handler[ln], (value >> ln) & 1); } diff --git a/hw/gpio/zaurus.c b/hw/gpio/zaurus.c index 9408342..24a7727 100644 --- a/hw/gpio/zaurus.c +++ b/hw/gpio/zaurus.c @@ -65,7 +65,7 @@ static inline void scoop_gpio_handler_update(ScoopInfo *s) { level = s->gpio_level & s->gpio_dir; for (diff = s->prev_level ^ level; diff; diff ^= 1 << bit) { - bit = ffs(diff) - 1; + bit = ctz32(diff); qemu_set_irq(s->handler[bit], (level >> bit) & 1); } |