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Diffstat (limited to 'arch/m68k/mac/oss.c')
-rw-r--r--arch/m68k/mac/oss.c54
1 files changed, 21 insertions, 33 deletions
diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c
index a9c0f5ab4cc0..a4c82dab9ff1 100644
--- a/arch/m68k/mac/oss.c
+++ b/arch/m68k/mac/oss.c
@@ -19,6 +19,7 @@
19#include <linux/mm.h> 19#include <linux/mm.h>
20#include <linux/delay.h> 20#include <linux/delay.h>
21#include <linux/init.h> 21#include <linux/init.h>
22#include <linux/irq.h>
22 23
23#include <asm/bootinfo.h> 24#include <asm/bootinfo.h>
24#include <asm/macintosh.h> 25#include <asm/macintosh.h>
@@ -29,10 +30,7 @@
29int oss_present; 30int oss_present;
30volatile struct mac_oss *oss; 31volatile struct mac_oss *oss;
31 32
32static irqreturn_t oss_irq(int, void *); 33extern void via1_irq(unsigned int irq, struct irq_desc *desc);
33static irqreturn_t oss_nubus_irq(int, void *);
34
35extern irqreturn_t via1_irq(int, void *);
36 34
37/* 35/*
38 * Initialize the OSS 36 * Initialize the OSS
@@ -60,26 +58,6 @@ void __init oss_init(void)
60} 58}
61 59
62/* 60/*
63 * Register the OSS and NuBus interrupt dispatchers.
64 */
65
66void __init oss_register_interrupts(void)
67{
68 if (request_irq(OSS_IRQLEV_SCSI, oss_irq, IRQ_FLG_LOCK,
69 "scsi", (void *) oss))
70 pr_err("Couldn't register %s interrupt\n", "scsi");
71 if (request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, IRQ_FLG_LOCK,
72 "nubus", (void *) oss))
73 pr_err("Couldn't register %s interrupt\n", "nubus");
74 if (request_irq(OSS_IRQLEV_SOUND, oss_irq, IRQ_FLG_LOCK,
75 "sound", (void *) oss))
76 pr_err("Couldn't register %s interrupt\n", "sound");
77 if (request_irq(OSS_IRQLEV_VIA1, via1_irq, IRQ_FLG_LOCK,
78 "via1", (void *) via1))
79 pr_err("Couldn't register %s interrupt\n", "via1");
80}
81
82/*
83 * Initialize OSS for Nubus access 61 * Initialize OSS for Nubus access
84 */ 62 */
85 63
@@ -92,17 +70,17 @@ void __init oss_nubus_init(void)
92 * and SCSI; everything else is routed to its own autovector IRQ. 70 * and SCSI; everything else is routed to its own autovector IRQ.
93 */ 71 */
94 72
95static irqreturn_t oss_irq(int irq, void *dev_id) 73static void oss_irq(unsigned int irq, struct irq_desc *desc)
96{ 74{
97 int events; 75 int events;
98 76
99 events = oss->irq_pending & (OSS_IP_SOUND|OSS_IP_SCSI); 77 events = oss->irq_pending & (OSS_IP_SOUND|OSS_IP_SCSI);
100 if (!events) 78 if (!events)
101 return IRQ_NONE; 79 return;
102 80
103#ifdef DEBUG_IRQS 81#ifdef DEBUG_IRQS
104 if ((console_loglevel == 10) && !(events & OSS_IP_SCSI)) { 82 if ((console_loglevel == 10) && !(events & OSS_IP_SCSI)) {
105 printk("oss_irq: irq %d events = 0x%04X\n", irq, 83 printk("oss_irq: irq %u events = 0x%04X\n", irq,
106 (int) oss->irq_pending); 84 (int) oss->irq_pending);
107 } 85 }
108#endif 86#endif
@@ -113,11 +91,10 @@ static irqreturn_t oss_irq(int irq, void *dev_id)
113 /* FIXME: call sound handler */ 91 /* FIXME: call sound handler */
114 } else if (events & OSS_IP_SCSI) { 92 } else if (events & OSS_IP_SCSI) {
115 oss->irq_pending &= ~OSS_IP_SCSI; 93 oss->irq_pending &= ~OSS_IP_SCSI;
116 m68k_handle_int(IRQ_MAC_SCSI); 94 generic_handle_irq(IRQ_MAC_SCSI);
117 } else { 95 } else {
118 /* FIXME: error check here? */ 96 /* FIXME: error check here? */
119 } 97 }
120 return IRQ_HANDLED;
121} 98}
122 99
123/* 100/*
@@ -126,13 +103,13 @@ static irqreturn_t oss_irq(int irq, void *dev_id)
126 * Unlike the VIA/RBV this is on its own autovector interrupt level. 103 * Unlike the VIA/RBV this is on its own autovector interrupt level.
127 */ 104 */
128 105
129static irqreturn_t oss_nubus_irq(int irq, void *dev_id) 106static void oss_nubus_irq(unsigned int irq, struct irq_desc *desc)
130{ 107{
131 int events, irq_bit, i; 108 int events, irq_bit, i;
132 109
133 events = oss->irq_pending & OSS_IP_NUBUS; 110 events = oss->irq_pending & OSS_IP_NUBUS;
134 if (!events) 111 if (!events)
135 return IRQ_NONE; 112 return;
136 113
137#ifdef DEBUG_NUBUS_INT 114#ifdef DEBUG_NUBUS_INT
138 if (console_loglevel > 7) { 115 if (console_loglevel > 7) {
@@ -148,10 +125,21 @@ static irqreturn_t oss_nubus_irq(int irq, void *dev_id)
148 irq_bit >>= 1; 125 irq_bit >>= 1;
149 if (events & irq_bit) { 126 if (events & irq_bit) {
150 oss->irq_pending &= ~irq_bit; 127 oss->irq_pending &= ~irq_bit;
151 m68k_handle_int(NUBUS_SOURCE_BASE + i); 128 generic_handle_irq(NUBUS_SOURCE_BASE + i);
152 } 129 }
153 } while(events & (irq_bit - 1)); 130 } while(events & (irq_bit - 1));
154 return IRQ_HANDLED; 131}
132
133/*
134 * Register the OSS and NuBus interrupt dispatchers.
135 */
136
137void __init oss_register_interrupts(void)
138{
139 irq_set_chained_handler(OSS_IRQLEV_SCSI, oss_irq);
140 irq_set_chained_handler(OSS_IRQLEV_NUBUS, oss_nubus_irq);
141 irq_set_chained_handler(OSS_IRQLEV_SOUND, oss_irq);
142 irq_set_chained_handler(OSS_IRQLEV_VIA1, via1_irq);
155} 143}
156 144
157/* 145/*