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Code Activity

atusb/fw/: changed USB stack to use interrupts instead of polling

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Note: this change surprisingly _increases_ the DFU wait in the boot
loader. Not yet sure why.

- boot.c (main): move the interrupt vectors to the boot loader
  section
- atusb.c (main): move the interrupt vectors to the application
  section
- boot.c (main): enable global interrupts while looping (disable
  them before jumping to the application)
- board_app.c (__timer_read, timer_read): removed wrapped since
  we're now always called with interrupts disabled
- usb/atu2.c (ep_init): enable endpoint interrupts
- usb/atu2.c (usb_init): enable device interrupts
- usb/atu2.c (usb_poll, USB_GEN_vect, USB_COM_vect): moved poll
  loop code into separate handlers for device and endpoint
  interrupts
- boot.c (main), atusb.c (main): removed call to usb_poll
This commit is contained in:
Werner Almesberger
2011-06-11 11:06:18 -03:00
parent f9681e5b4f
commit d03beb2257
5 changed files with 30 additions and 20 deletions
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13
atusb/fw/board_app.c
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@@ -51,7 +51,7 @@ ISR(TIMER1_OVF_vect)
}
static uint64_t __timer_read(void)
uint64_t timer_read(void)
{
uint32_t high;
uint8_t low, mid;
@@ -75,17 +75,6 @@ static uint64_t __timer_read(void)
}
uint64_t timer_read(void)
{
uint64_t res;
cli();
res = __timer_read();
sei();
return res;
}
void timer_init(void)
{
/* configure timer 1 as a free-running CLK counter */