diff options
Diffstat (limited to 'arch/m68k')
| -rw-r--r-- | arch/m68k/amiga/amiints.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/arch/m68k/amiga/amiints.c b/arch/m68k/amiga/amiints.c index c3da5342f49..a8da4712658 100644 --- a/arch/m68k/amiga/amiints.c +++ b/arch/m68k/amiga/amiints.c @@ -48,6 +48,99 @@ static struct irq_chip amiga_irq_chip = { * The builtin Amiga hardware interrupt handlers. */ +#ifdef CONFIG_GENERIC_HARDIRQS +static void ami_int1(unsigned int irq, struct irq_desc *desc) +{ + unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar; + + /* if serial transmit buffer empty, interrupt */ + if (ints & IF_TBE) { + amiga_custom.intreq = IF_TBE; + generic_handle_irq(IRQ_AMIGA_TBE); + } + + /* if floppy disk transfer complete, interrupt */ + if (ints & IF_DSKBLK) { + amiga_custom.intreq = IF_DSKBLK; + generic_handle_irq(IRQ_AMIGA_DSKBLK); + } + + /* if software interrupt set, interrupt */ + if (ints & IF_SOFT) { + amiga_custom.intreq = IF_SOFT; + generic_handle_irq(IRQ_AMIGA_SOFT); + } +} + +static void ami_int3(unsigned int irq, struct irq_desc *desc) +{ + unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar; + + /* if a blitter interrupt */ + if (ints & IF_BLIT) { + amiga_custom.intreq = IF_BLIT; + generic_handle_irq(IRQ_AMIGA_BLIT); + } + + /* if a copper interrupt */ + if (ints & IF_COPER) { + amiga_custom.intreq = IF_COPER; + generic_handle_irq(IRQ_AMIGA_COPPER); + } + + /* if a vertical blank interrupt */ + if (ints & IF_VERTB) { + amiga_custom.intreq = IF_VERTB; + generic_handle_irq(IRQ_AMIGA_VERTB); + } +} + +static void ami_int4(unsigned int irq, struct irq_desc *desc) +{ + unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar; + + /* if audio 0 interrupt */ + if (ints & IF_AUD0) { + amiga_custom.intreq = IF_AUD0; + generic_handle_irq(IRQ_AMIGA_AUD0); + } + + /* if audio 1 interrupt */ + if (ints & IF_AUD1) { + amiga_custom.intreq = IF_AUD1; + generic_handle_irq(IRQ_AMIGA_AUD1); + } + + /* if audio 2 interrupt */ + if (ints & IF_AUD2) { + amiga_custom.intreq = IF_AUD2; + generic_handle_irq(IRQ_AMIGA_AUD2); + } + + /* if audio 3 interrupt */ + if (ints & IF_AUD3) { + amiga_custom.intreq = IF_AUD3; + generic_handle_irq(IRQ_AMIGA_AUD3); + } +} + +static void ami_int5(unsigned int irq, struct irq_desc *desc) +{ + unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar; + + /* if serial receive buffer full interrupt */ + if (ints & IF_RBF) { + /* acknowledge of IF_RBF must be done by the serial interrupt */ + generic_handle_irq(IRQ_AMIGA_RBF); + } + + /* if a disk sync interrupt */ + if (ints & IF_DSKSYN) { + amiga_custom.intreq = IF_DSKSYN; + generic_handle_irq(IRQ_AMIGA_DSKSYN); + } +} +#else /* !CONFIG_GENERIC_HARDIRQS */ static irqreturn_t ami_int1(int irq, void *dev_id) { unsigned short ints = amiga_custom.intreqr & amiga_custom.intenar; @@ -143,6 +236,7 @@ static irqreturn_t ami_int5(int irq, void *dev_id) } return IRQ_HANDLED; } +#endif /* !CONFIG_GENERIC_HARDIRQS */ /* @@ -158,6 +252,15 @@ static irqreturn_t ami_int5(int irq, void *dev_id) void __init amiga_init_IRQ(void) { +#ifdef CONFIG_GENERIC_HARDIRQS + m68k_setup_irq_controller(&amiga_irq_chip, handle_simple_irq, IRQ_USER, + AMI_STD_IRQS); + + irq_set_chained_handler(IRQ_AUTO_1, ami_int1); + irq_set_chained_handler(IRQ_AUTO_3, ami_int3); + irq_set_chained_handler(IRQ_AUTO_4, ami_int4); + irq_set_chained_handler(IRQ_AUTO_5, ami_int5); +#else /* !CONFIG_GENERIC_HARDIRQS */ if (request_irq(IRQ_AUTO_1, ami_int1, 0, "int1", NULL)) pr_err("Couldn't register int%d\n", 1); if (request_irq(IRQ_AUTO_3, ami_int3, 0, "int3", NULL)) @@ -169,6 +272,7 @@ void __init amiga_init_IRQ(void) m68k_setup_irq_controller(&amiga_irq_chip, handle_simple_irq, IRQ_USER, AMI_STD_IRQS); +#endif /* !CONFIG_GENERIC_HARDIRQS */ /* turn off PCMCIA interrupts */ if (AMIGAHW_PRESENT(PCMCIA)) |