diff options
| author | henryk <henryk@6dc7ffe9-61d6-0310-9af1-9938baff3ed1> | 2007-11-14 05:28:05 +0000 |
|---|---|---|
| committer | henryk <henryk@6dc7ffe9-61d6-0310-9af1-9938baff3ed1> | 2007-11-14 05:28:05 +0000 |
| commit | 8dc345999942b1f213f54c2ce4f2878abdabac4a (patch) | |
| tree | da82d2cd90d043f2475b0d584869115fce349296 /openpicc/application/pio_irq.c | |
| parent | 3fb02f719f0bea99548a6bc7fe7c37e9d25ce800 (diff) | |
Rewrite irq handlers according to the new information in http://www.freertos.org/portsam7xlwIP.html: /* Call the handler function. This must be a separate function unless you can guarantee that
handling the interrupt will never use any stack space. */
git-svn-id: https://svn.openpcd.org:2342/trunk@327 6dc7ffe9-61d6-0310-9af1-9938baff3ed1
Diffstat (limited to 'openpicc/application/pio_irq.c')
| -rw-r--r-- | openpicc/application/pio_irq.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/openpicc/application/pio_irq.c b/openpicc/application/pio_irq.c index d21d1db..5a82a85 100644 --- a/openpicc/application/pio_irq.c +++ b/openpicc/application/pio_irq.c @@ -85,11 +85,15 @@ void __ramfunc __pio_irq_demux(u_int32_t pio) } /* regular interrupt handler, in case fast forcing for PIOA disabled */ -static void pio_irq_demux(void) +static void pio_irq_demux_inner(void) { - portSAVE_CONTEXT(); u_int32_t pio = AT91F_PIO_GetInterruptStatus(AT91C_BASE_PIOA); __pio_irq_demux(pio); +} +static void pio_irq_demux_outer(void) __attribute__ ((naked)); +static void pio_irq_demux_outer(void) { + portSAVE_CONTEXT(); + pio_irq_demux_inner(); portRESTORE_CONTEXT(); } @@ -145,6 +149,6 @@ void pio_irq_init(void) AT91F_PIOA_CfgPMC(); AT91F_AIC_ConfigureIt(AT91C_ID_PIOA, OPENPICC_IRQ_PRIO_PIO, - AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL, &pio_irq_demux); + AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL, &pio_irq_demux_outer); AT91F_AIC_EnableIt(AT91C_ID_PIOA); } |