ARMmbed
/
mbed-os
mirror of https://github.com/ARMmbed/mbed-os.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Tidying up gpio_irq_api.c

pull/17/head
Matthew Else 2013-07-25 10:43:49 +01:00
parent a7ba27618d
commit c3ebd47071
1 changed files with 0 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
libraries/mbed/targets/hal/TARGET_NXP/TARGET_LPC11XX/gpio_irq_api.c
View File

@ -68,16 +68,6 @@ int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32
// Set the handler to be the pointer at the top... // Set the handler to be the pointer at the top...
irq_handler = handler; irq_handler = handler;
/*
If there are any ports or pins that aren't able to handle interrupts, put them here and uncomment.
if (pin == ... ||
pin == ...) {
error("This pin does not support interrupts.");
return -1;x
}
*/
// Which port are we using? // Which port are we using?
int channel; int channel;
uint32_t port_reg = (LPC_GPIO0_BASE + (((pin & 0xF000) >> PORT_SHIFT) * 0x10000)); uint32_t port_reg = (LPC_GPIO0_BASE + (((pin & 0xF000) >> PORT_SHIFT) * 0x10000));
@ -164,13 +154,6 @@ void gpio_irq_set(gpio_irq_t *obj, gpio_irq_event event, uint32_t enable) {
else else
port_reg->IEV &= ~(1 << pin_num); port_reg->IEV &= ~(1 << pin_num);
} }
/*
Firstly, clear the interrupts for this pin,
Then, let the registers know whether we're looking for edge detection,
Enable the interrupt,
And set it to only respond to interrupts on one edge.
*/
// Clear // Clear
port_reg->IC |= 1 << pin_num; port_reg->IC |= 1 << pin_num;