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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-19 16:18:39 -0500
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-19 16:18:39 -0500
commit59b8175c771040afcd4ad67022b0cc80c216b866 (patch)
tree4ef5935bee1e342716d49b9d4b99e3fa835526e6 /include/asm-arm/plat-s3c24xx/irq.h
parent920841d8d1d61bc12b43f95a579a5374f6d98f81 (diff)
parent3b0eb4a195a124567cd0dd6f700f8388def542c6 (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (117 commits) [ARM] 4058/2: iop32x: set ->broken_parity_status on n2100 onboard r8169 ports [ARM] 4140/1: AACI stability add ac97 timeout and retries [ARM] 4139/1: AACI record support [ARM] 4138/1: AACI: multiple channel support for IRQ handling [ARM] 4211/1: Provide a defconfig for ns9xxx [ARM] 4210/1: base for new machine type "NetSilicon NS9360" [ARM] 4222/1: S3C2443: Remove reference to missing S3C2443_PM [ARM] 4221/1: S3C2443: DMA support [ARM] 4220/1: S3C24XX: DMA system initialised from sysdev [ARM] 4219/1: S3C2443: DMA source definitions [ARM] 4218/1: S3C2412: fix CONFIG_CPU_S3C2412_ONLY wrt to S3C2443 [ARM] 4217/1: S3C24XX: remove the dma channel show at startup [ARM] 4090/2: avoid clash between PXA and SA1111 defines [ARM] 4216/1: add .gitignore entries for ARM specific files [ARM] 4214/2: S3C2410: Add Armzone QT2410 [ARM] 4215/1: s3c2410 usb device: per-platform vbus_draw [ARM] 4213/1: S3C2410 - Update definition of ADCTSC_XY_PST [ARM] 4098/1: ARM: rtc_lock only used with rtc_cmos [ARM] 4137/1: Add kexec support [ARM] 4201/1: SMP barriers pair needed for the secondary boot process ... Fix up conflict due to typedef removal in sound/arm/aaci.h
Diffstat (limited to 'include/asm-arm/plat-s3c24xx/irq.h')
-rw-r--r--include/asm-arm/plat-s3c24xx/irq.h107
1 files changed, 107 insertions, 0 deletions
diff --git a/include/asm-arm/plat-s3c24xx/irq.h b/include/asm-arm/plat-s3c24xx/irq.h
new file mode 100644
index 000000000000..8af6d9579b31
--- /dev/null
+++ b/include/asm-arm/plat-s3c24xx/irq.h
@@ -0,0 +1,107 @@
1/* linux/include/asm-arm/plat-s3c24xx/irq.h
2 *
3 * Copyright (c) 2004-2005 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 *
6 * Header file for S3C24XX CPU IRQ support
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11*/
12
13#define irqdbf(x...)
14#define irqdbf2(x...)
15
16#define EXTINT_OFF (IRQ_EINT4 - 4)
17
18extern struct irq_chip s3c_irq_level_chip;
19
20static inline void
21s3c_irqsub_mask(unsigned int irqno, unsigned int parentbit,
22 int subcheck)
23{
24 unsigned long mask;
25 unsigned long submask;
26
27 submask = __raw_readl(S3C2410_INTSUBMSK);
28 mask = __raw_readl(S3C2410_INTMSK);
29
30 submask |= (1UL << (irqno - IRQ_S3CUART_RX0));
31
32 /* check to see if we need to mask the parent IRQ */
33
34 if ((submask & subcheck) == subcheck) {
35 __raw_writel(mask | parentbit, S3C2410_INTMSK);
36 }
37
38 /* write back masks */
39 __raw_writel(submask, S3C2410_INTSUBMSK);
40
41}
42
43static inline void
44s3c_irqsub_unmask(unsigned int irqno, unsigned int parentbit)
45{
46 unsigned long mask;
47 unsigned long submask;
48
49 submask = __raw_readl(S3C2410_INTSUBMSK);
50 mask = __raw_readl(S3C2410_INTMSK);
51
52 submask &= ~(1UL << (irqno - IRQ_S3CUART_RX0));
53 mask &= ~parentbit;
54
55 /* write back masks */
56 __raw_writel(submask, S3C2410_INTSUBMSK);
57 __raw_writel(mask, S3C2410_INTMSK);
58}
59
60
61static inline void
62s3c_irqsub_maskack(unsigned int irqno, unsigned int parentmask, unsigned int group)
63{
64 unsigned int bit = 1UL << (irqno - IRQ_S3CUART_RX0);
65
66 s3c_irqsub_mask(irqno, parentmask, group);
67
68 __raw_writel(bit, S3C2410_SUBSRCPND);
69
70 /* only ack parent if we've got all the irqs (seems we must
71 * ack, all and hope that the irq system retriggers ok when
72 * the interrupt goes off again)
73 */
74
75 if (1) {
76 __raw_writel(parentmask, S3C2410_SRCPND);
77 __raw_writel(parentmask, S3C2410_INTPND);
78 }
79}
80
81static inline void
82s3c_irqsub_ack(unsigned int irqno, unsigned int parentmask, unsigned int group)
83{
84 unsigned int bit = 1UL << (irqno - IRQ_S3CUART_RX0);
85
86 __raw_writel(bit, S3C2410_SUBSRCPND);
87
88 /* only ack parent if we've got all the irqs (seems we must
89 * ack, all and hope that the irq system retriggers ok when
90 * the interrupt goes off again)
91 */
92
93 if (1) {
94 __raw_writel(parentmask, S3C2410_SRCPND);
95 __raw_writel(parentmask, S3C2410_INTPND);
96 }
97}
98
99/* exported for use in arch/arm/mach-s3c2410 */
100
101#ifdef CONFIG_PM
102extern int s3c_irq_wake(unsigned int irqno, unsigned int state);
103#else
104#define s3c_irq_wake NULL
105#endif
106
107extern int s3c_irqext_type(unsigned int irq, unsigned int type);