diff options
| author | Keith Packard <keithp@keithp.com> | 2011-05-20 02:47:20 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-05-20 02:47:20 -0700 |
| commit | f7e552a0f4b1382a076b0f3ffc50ef068bfa141f (patch) | |
| tree | a782717c90401c61c604678e253ef4924722ba3e | |
| parent | ed494fe0f95e5c949d3ef826cab415f23ed9f33a (diff) | |
src-avr: Reduce control connection interrupts
Leave these disabled while processing stuff; otherwise we receive a
steady stream of them.
Signed-off-by: Keith Packard <keithp@keithp.com>
| -rw-r--r-- | src-avr/ao_usb_avr.c | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/src-avr/ao_usb_avr.c b/src-avr/ao_usb_avr.c index 47a1487f..74bdea23 100644 --- a/src-avr/ao_usb_avr.c +++ b/src-avr/ao_usb_avr.c @@ -48,6 +48,7 @@ static __xdata uint8_t *__xdata ao_usb_ep0_out_data; static __xdata uint8_t ao_usb_in_flushed; static __xdata uint8_t ao_usb_running; static __xdata uint8_t ao_usb_configuration; +static __xdata uint8_t ueienx_0; void ao_usb_set_address(uint8_t address) @@ -84,8 +85,8 @@ ao_usb_set_ep0(void) (0 << EPBK0) | /* Single bank */ (1 << ALLOC)); - UEIENX = ((1 << RXSTPE) | /* Enable SETUP interrupt */ - (1 << RXOUTE)); /* Enable OUT interrupt */ + ueienx_0 = ((1 << RXSTPE) | /* Enable SETUP interrupt */ + (1 << RXOUTE)); /* Enable OUT interrupt */ // ao_usb_dump_ep(0); ao_usb_addr_pending = 0; @@ -164,10 +165,8 @@ ao_usb_ep0_set_in_pending(uint8_t in_pending) { ao_usb_ep0_in_pending = in_pending; - if (in_pending) { - UENUM = 0; - UEIENX = ((1 << RXSTPE) | (1 << RXOUTE) | (1 << TXINE)); /* Enable IN interrupt */ - } + if (in_pending) + ueienx_0 = ((1 << RXSTPE) | (1 << RXOUTE) | (1 << TXINE)); /* Enable IN interrupt */ } /* Send an IN data packet */ @@ -389,10 +388,12 @@ ao_usb_ep0(void) UDADDR |= (1 << ADDEN); ao_usb_addr_pending = 0; } - UEIENX = ((1 << RXSTPE) | (1 << RXOUTE)); /* Disable IN interrupt */ + ueienx_0 = ((1 << RXSTPE) | (1 << RXOUTE)); /* Disable IN interrupt */ } } // debug ("usb task sleeping...\n"); + UENUM = 0; + UEIENX = ueienx_0; ao_sleep(&ao_usb_task); } sei(); @@ -556,6 +557,8 @@ ISR(USB_COM_vect) #endif UEINT = 0; if (i & (1 << 0)) { + UENUM = 0; + UEIENX = 0; ao_wakeup(&ao_usb_task); ++control_count; } |