Remove obsolete #include <linux/config.h>
[linux-3.10.git] / arch / m68k / sun3 / sun3ints.c
1  /*
2  * linux/arch/m68k/sun3/sun3ints.c -- Sun-3(x) Linux interrupt handling code
3  *
4  * This file is subject to the terms and conditions of the GNU General Public
5  * License.  See the file COPYING in the main directory of this archive
6  * for more details.
7  */
8
9 #include <linux/types.h>
10 #include <linux/kernel.h>
11 #include <linux/sched.h>
12 #include <linux/kernel_stat.h>
13 #include <linux/interrupt.h>
14 #include <asm/segment.h>
15 #include <asm/intersil.h>
16 #include <asm/oplib.h>
17 #include <asm/sun3ints.h>
18 #include <linux/seq_file.h>
19
20 extern void sun3_leds (unsigned char);
21
22 void sun3_disable_interrupts(void)
23 {
24         sun3_disable_irq(0);
25 }
26
27 void sun3_enable_interrupts(void)
28 {
29         sun3_enable_irq(0);
30 }
31
32 int led_pattern[8] = {
33        ~(0x80), ~(0x01),
34        ~(0x40), ~(0x02),
35        ~(0x20), ~(0x04),
36        ~(0x10), ~(0x08)
37 };
38
39 volatile unsigned char* sun3_intreg;
40
41 void sun3_enable_irq(unsigned int irq)
42 {
43         *sun3_intreg |=  (1 << irq);
44 }
45
46 void sun3_disable_irq(unsigned int irq)
47 {
48         *sun3_intreg &= ~(1 << irq);
49 }
50
51 static irqreturn_t sun3_int7(int irq, void *dev_id, struct pt_regs *fp)
52 {
53         *sun3_intreg |=  (1 << irq);
54         if (!(kstat_cpu(0).irqs[irq] % 2000))
55                 sun3_leds(led_pattern[(kstat_cpu(0).irqs[irq] % 16000) / 2000]);
56         return IRQ_HANDLED;
57 }
58
59 static irqreturn_t sun3_int5(int irq, void *dev_id, struct pt_regs *fp)
60 {
61 #ifdef CONFIG_SUN3
62         intersil_clear();
63 #endif
64         *sun3_intreg |=  (1 << irq);
65 #ifdef CONFIG_SUN3
66         intersil_clear();
67 #endif
68         do_timer(fp);
69 #ifndef CONFIG_SMP
70         update_process_times(user_mode(fp));
71 #endif
72         if (!(kstat_cpu(0).irqs[irq] % 20))
73                 sun3_leds(led_pattern[(kstat_cpu(0).irqs[irq] % 160) / 20]);
74         return IRQ_HANDLED;
75 }
76
77 static irqreturn_t sun3_vec255(int irq, void *dev_id, struct pt_regs *fp)
78 {
79 //      intersil_clear();
80         return IRQ_HANDLED;
81 }
82
83 static void sun3_inthandle(unsigned int irq, struct pt_regs *fp)
84 {
85         *sun3_intreg &= ~(1 << irq);
86
87         m68k_handle_int(irq, fp);
88 }
89
90 static struct irq_controller sun3_irq_controller = {
91         .name           = "sun3",
92         .lock           = SPIN_LOCK_UNLOCKED,
93         .startup        = m68k_irq_startup,
94         .shutdown       = m68k_irq_shutdown,
95         .enable         = sun3_enable_irq,
96         .disable        = sun3_disable_irq,
97 };
98
99 void sun3_init_IRQ(void)
100 {
101         *sun3_intreg = 1;
102
103         m68k_setup_auto_interrupt(sun3_inthandle);
104         m68k_setup_irq_controller(&sun3_irq_controller, IRQ_AUTO_1, 7);
105         m68k_setup_user_interrupt(VEC_USER, 192, NULL);
106
107         request_irq(IRQ_AUTO_5, sun3_int5, 0, "int5", NULL);
108         request_irq(IRQ_AUTO_7, sun3_int7, 0, "int7", NULL);
109         request_irq(IRQ_USER+127, sun3_vec255, 0, "vec255", NULL);
110 }