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authorhenryk <henryk@6dc7ffe9-61d6-0310-9af1-9938baff3ed1>2007-11-14 05:28:05 +0000
committerhenryk <henryk@6dc7ffe9-61d6-0310-9af1-9938baff3ed1>2007-11-14 05:28:05 +0000
commit8dc345999942b1f213f54c2ce4f2878abdabac4a (patch)
treeda82d2cd90d043f2475b0d584869115fce349296 /openpicc/application/tc_fdt.c
parent3fb02f719f0bea99548a6bc7fe7c37e9d25ce800 (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/tc_fdt.c')
-rw-r--r--openpicc/application/tc_fdt.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/openpicc/application/tc_fdt.c b/openpicc/application/tc_fdt.c
index 0193863..179ea98 100644
--- a/openpicc/application/tc_fdt.c
+++ b/openpicc/application/tc_fdt.c
@@ -55,9 +55,8 @@ void tc_frame_end_set(u_int16_t count)
tcfdt->TC_RB = count;
}
-static void tc_fdt_irq(void)
+static void tc_fdt_irq_inner(void)
{
- portSAVE_CONTEXT();
vLedSetGreen(1);
u_int32_t sr = tcfdt->TC_SR;
DEBUGP("tc_fdt_irq: TC2_SR=0x%08x TC2_CV=0x%08x ",
@@ -84,6 +83,12 @@ static void tc_fdt_irq(void)
DEBUGPCR("");
AT91F_AIC_AcknowledgeIt();
vLedSetGreen(0);
+}
+
+static void tc_fdt_irq_outer(void) __attribute__ ((naked));
+static void tc_fdt_irq_outer(void) {
+ portSAVE_CONTEXT();
+ tc_fdt_irq_inner();
portRESTORE_CONTEXT();
}
@@ -125,7 +130,7 @@ void tc_fdt_init(void)
AT91F_AIC_ConfigureIt(AT91C_ID_TC2,
OPENPCD_IRQ_PRIO_TC_FDT,
- AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL, &tc_fdt_irq);
+ AT91C_AIC_SRCTYPE_INT_HIGH_LEVEL, &tc_fdt_irq_outer);
AT91F_AIC_EnableIt(AT91C_ID_TC2);
tcfdt->TC_IER = AT91C_TC_CPAS | AT91C_TC_CPBS | AT91C_TC_CPCS |
personal git repositories of Harald Welte. Your mileage may vary