From c6d86a33d36891bd5090ea72134b9854d6811173 Mon Sep 17 00:00:00 2001 From: balrog Date: Sun, 7 Dec 2008 18:49:57 +0000 Subject: sh4: Add IRL (4-bit encoded interrupt input) support (Takashi YOSHII). This patch adds IRL(4bit encoded 15 level interrupt input) support to SH using qemu_irq as a multi level (!=on/off) signal. Signed-off-by: Takashi YOSHII Signed-off-by: Andrzej Zaborowski git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5925 c046a42c-6fe2-441c-8c8c-71466251a162 --- hw/sh_intc.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'hw/sh_intc.c') diff --git a/hw/sh_intc.c b/hw/sh_intc.c index 99db51c6d..b62633d31 100644 --- a/hw/sh_intc.c +++ b/hw/sh_intc.c @@ -465,3 +465,18 @@ int sh_intc_init(struct intc_desc *desc, return 0; } + +/* Assert level IRL interrupt. + 0:deassert. 1:lowest priority,... 15:highest priority. */ +void sh_intc_set_irl(void *opaque, int n, int level) +{ + struct intc_source *s = opaque; + int i, irl = level ^ 15; + for (i = 0; (s = sh_intc_source(s->parent, s->next_enum_id)); i++) { + if (i == irl) + sh_intc_toggle_source(s, s->enable_count?0:1, s->asserted?0:1); + else + if (s->asserted) + sh_intc_toggle_source(s, 0, -1); + } +} -- cgit v1.2.3