diff options
Diffstat (limited to 'arch/sh/boards/cqreek/irq.c')
-rw-r--r-- | arch/sh/boards/cqreek/irq.c | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/arch/sh/boards/cqreek/irq.c b/arch/sh/boards/cqreek/irq.c deleted file mode 100644 index 2955adc52310..000000000000 --- a/arch/sh/boards/cqreek/irq.c +++ /dev/null | |||
@@ -1,128 +0,0 @@ | |||
1 | /* $Id: irq.c,v 1.1.2.4 2002/11/04 20:33:56 lethal Exp $ | ||
2 | * | ||
3 | * arch/sh/boards/cqreek/irq.c | ||
4 | * | ||
5 | * Copyright (C) 2000 Niibe Yutaka | ||
6 | * | ||
7 | * CqREEK IDE/ISA Bridge Support. | ||
8 | * | ||
9 | */ | ||
10 | |||
11 | #include <linux/irq.h> | ||
12 | #include <linux/init.h> | ||
13 | |||
14 | #include <asm/cqreek/cqreek.h> | ||
15 | #include <asm/io.h> | ||
16 | #include <asm/io_generic.h> | ||
17 | #include <asm/irq.h> | ||
18 | #include <asm/machvec.h> | ||
19 | #include <asm/machvec_init.h> | ||
20 | #include <asm/rtc.h> | ||
21 | |||
22 | struct cqreek_irq_data { | ||
23 | unsigned short mask_port; /* Port of Interrupt Mask Register */ | ||
24 | unsigned short stat_port; /* Port of Interrupt Status Register */ | ||
25 | unsigned short bit; /* Value of the bit */ | ||
26 | }; | ||
27 | static struct cqreek_irq_data cqreek_irq_data[NR_IRQS]; | ||
28 | |||
29 | static void disable_cqreek_irq(unsigned int irq) | ||
30 | { | ||
31 | unsigned long flags; | ||
32 | unsigned short mask; | ||
33 | unsigned short mask_port = cqreek_irq_data[irq].mask_port; | ||
34 | unsigned short bit = cqreek_irq_data[irq].bit; | ||
35 | |||
36 | local_irq_save(flags); | ||
37 | /* Disable IRQ */ | ||
38 | mask = inw(mask_port) & ~bit; | ||
39 | outw_p(mask, mask_port); | ||
40 | local_irq_restore(flags); | ||
41 | } | ||
42 | |||
43 | static void enable_cqreek_irq(unsigned int irq) | ||
44 | { | ||
45 | unsigned long flags; | ||
46 | unsigned short mask; | ||
47 | unsigned short mask_port = cqreek_irq_data[irq].mask_port; | ||
48 | unsigned short bit = cqreek_irq_data[irq].bit; | ||
49 | |||
50 | local_irq_save(flags); | ||
51 | /* Enable IRQ */ | ||
52 | mask = inw(mask_port) | bit; | ||
53 | outw_p(mask, mask_port); | ||
54 | local_irq_restore(flags); | ||
55 | } | ||
56 | |||
57 | static void mask_and_ack_cqreek(unsigned int irq) | ||
58 | { | ||
59 | unsigned short stat_port = cqreek_irq_data[irq].stat_port; | ||
60 | unsigned short bit = cqreek_irq_data[irq].bit; | ||
61 | |||
62 | disable_cqreek_irq(irq); | ||
63 | /* Clear IRQ (it might be edge IRQ) */ | ||
64 | inw(stat_port); | ||
65 | outw_p(bit, stat_port); | ||
66 | } | ||
67 | |||
68 | static void end_cqreek_irq(unsigned int irq) | ||
69 | { | ||
70 | if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) | ||
71 | enable_cqreek_irq(irq); | ||
72 | } | ||
73 | |||
74 | static unsigned int startup_cqreek_irq(unsigned int irq) | ||
75 | { | ||
76 | enable_cqreek_irq(irq); | ||
77 | return 0; | ||
78 | } | ||
79 | |||
80 | static void shutdown_cqreek_irq(unsigned int irq) | ||
81 | { | ||
82 | disable_cqreek_irq(irq); | ||
83 | } | ||
84 | |||
85 | static struct hw_interrupt_type cqreek_irq_type = { | ||
86 | .typename = "CqREEK-IRQ", | ||
87 | .startup = startup_cqreek_irq, | ||
88 | .shutdown = shutdown_cqreek_irq, | ||
89 | .enable = enable_cqreek_irq, | ||
90 | .disable = disable_cqreek_irq, | ||
91 | .ack = mask_and_ack_cqreek, | ||
92 | .end = end_cqreek_irq | ||
93 | }; | ||
94 | |||
95 | int cqreek_has_ide, cqreek_has_isa; | ||
96 | |||
97 | /* XXX: This is just for test for my NE2000 ISA board | ||
98 | What we really need is virtualized IRQ and demultiplexer like HP600 port */ | ||
99 | void __init init_cqreek_IRQ(void) | ||
100 | { | ||
101 | if (cqreek_has_ide) { | ||
102 | cqreek_irq_data[14].mask_port = BRIDGE_IDE_INTR_MASK; | ||
103 | cqreek_irq_data[14].stat_port = BRIDGE_IDE_INTR_STAT; | ||
104 | cqreek_irq_data[14].bit = 1; | ||
105 | |||
106 | irq_desc[14].chip = &cqreek_irq_type; | ||
107 | irq_desc[14].status = IRQ_DISABLED; | ||
108 | irq_desc[14].action = 0; | ||
109 | irq_desc[14].depth = 1; | ||
110 | |||
111 | disable_cqreek_irq(14); | ||
112 | } | ||
113 | |||
114 | if (cqreek_has_isa) { | ||
115 | cqreek_irq_data[10].mask_port = BRIDGE_ISA_INTR_MASK; | ||
116 | cqreek_irq_data[10].stat_port = BRIDGE_ISA_INTR_STAT; | ||
117 | cqreek_irq_data[10].bit = (1 << 10); | ||
118 | |||
119 | /* XXX: Err... we may need demultiplexer for ISA irq... */ | ||
120 | irq_desc[10].chip = &cqreek_irq_type; | ||
121 | irq_desc[10].status = IRQ_DISABLED; | ||
122 | irq_desc[10].action = 0; | ||
123 | irq_desc[10].depth = 1; | ||
124 | |||
125 | disable_cqreek_irq(10); | ||
126 | } | ||
127 | } | ||
128 | |||