IRQ: Use the new typedef for interrupt handler function pointers
[linux-2.6.git] / arch / m68k / apollo / config.c
1 #include <linux/types.h>
2 #include <linux/kernel.h>
3 #include <linux/mm.h>
4 #include <linux/tty.h>
5 #include <linux/console.h>
6 #include <linux/rtc.h>
7 #include <linux/vt_kern.h>
8 #include <linux/interrupt.h>
9
10 #include <asm/setup.h>
11 #include <asm/bootinfo.h>
12 #include <asm/system.h>
13 #include <asm/pgtable.h>
14 #include <asm/apollohw.h>
15 #include <asm/irq.h>
16 #include <asm/rtc.h>
17 #include <asm/machdep.h>
18
19 u_long sio01_physaddr;
20 u_long sio23_physaddr;
21 u_long rtc_physaddr;
22 u_long pica_physaddr;
23 u_long picb_physaddr;
24 u_long cpuctrl_physaddr;
25 u_long timer_physaddr;
26 u_long apollo_model;
27
28 extern void dn_sched_init(irq_handler_t handler);
29 extern void dn_init_IRQ(void);
30 extern unsigned long dn_gettimeoffset(void);
31 extern int dn_dummy_hwclk(int, struct rtc_time *);
32 extern int dn_dummy_set_clock_mmss(unsigned long);
33 extern void dn_dummy_reset(void);
34 extern void dn_dummy_waitbut(void);
35 extern struct fb_info *dn_fb_init(long *);
36 extern void dn_dummy_debug_init(void);
37 extern irqreturn_t dn_process_int(int irq, struct pt_regs *fp);
38 #ifdef CONFIG_HEARTBEAT
39 static void dn_heartbeat(int on);
40 #endif
41 static irqreturn_t dn_timer_int(int irq,void *);
42 static void dn_get_model(char *model);
43 static const char *apollo_models[] = {
44         [APOLLO_DN3000-APOLLO_DN3000] = "DN3000 (Otter)",
45         [APOLLO_DN3010-APOLLO_DN3000] = "DN3010 (Otter)",
46         [APOLLO_DN3500-APOLLO_DN3000] = "DN3500 (Cougar II)",
47         [APOLLO_DN4000-APOLLO_DN3000] = "DN4000 (Mink)",
48         [APOLLO_DN4500-APOLLO_DN3000] = "DN4500 (Roadrunner)"
49 };
50
51 int apollo_parse_bootinfo(const struct bi_record *record) {
52
53         int unknown = 0;
54         const unsigned long *data = record->data;
55
56         switch(record->tag) {
57                 case BI_APOLLO_MODEL:
58                         apollo_model=*data;
59                         break;
60
61                 default:
62                          unknown=1;
63         }
64
65         return unknown;
66 }
67
68 void dn_setup_model(void) {
69
70
71         printk("Apollo hardware found: ");
72         printk("[%s]\n", apollo_models[apollo_model - APOLLO_DN3000]);
73
74         switch(apollo_model) {
75                 case APOLLO_UNKNOWN:
76                         panic("Unknown apollo model");
77                         break;
78                 case APOLLO_DN3000:
79                 case APOLLO_DN3010:
80                         sio01_physaddr=SAU8_SIO01_PHYSADDR;
81                         rtc_physaddr=SAU8_RTC_PHYSADDR;
82                         pica_physaddr=SAU8_PICA;
83                         picb_physaddr=SAU8_PICB;
84                         cpuctrl_physaddr=SAU8_CPUCTRL;
85                         timer_physaddr=SAU8_TIMER;
86                         break;
87                 case APOLLO_DN4000:
88                         sio01_physaddr=SAU7_SIO01_PHYSADDR;
89                         sio23_physaddr=SAU7_SIO23_PHYSADDR;
90                         rtc_physaddr=SAU7_RTC_PHYSADDR;
91                         pica_physaddr=SAU7_PICA;
92                         picb_physaddr=SAU7_PICB;
93                         cpuctrl_physaddr=SAU7_CPUCTRL;
94                         timer_physaddr=SAU7_TIMER;
95                         break;
96                 case APOLLO_DN4500:
97                         panic("Apollo model not yet supported");
98                         break;
99                 case APOLLO_DN3500:
100                         sio01_physaddr=SAU7_SIO01_PHYSADDR;
101                         sio23_physaddr=SAU7_SIO23_PHYSADDR;
102                         rtc_physaddr=SAU7_RTC_PHYSADDR;
103                         pica_physaddr=SAU7_PICA;
104                         picb_physaddr=SAU7_PICB;
105                         cpuctrl_physaddr=SAU7_CPUCTRL;
106                         timer_physaddr=SAU7_TIMER;
107                         break;
108                 default:
109                         panic("Undefined apollo model");
110                         break;
111         }
112
113
114 }
115
116 int dn_serial_console_wait_key(struct console *co) {
117
118         while(!(sio01.srb_csrb & 1))
119                 barrier();
120         return sio01.rhrb_thrb;
121 }
122
123 void dn_serial_console_write (struct console *co, const char *str,unsigned int count)
124 {
125    while(count--) {
126         if (*str == '\n') {
127         sio01.rhrb_thrb = (unsigned char)'\r';
128         while (!(sio01.srb_csrb & 0x4))
129                 ;
130         }
131     sio01.rhrb_thrb = (unsigned char)*str++;
132     while (!(sio01.srb_csrb & 0x4))
133             ;
134   }
135 }
136
137 void dn_serial_print (const char *str)
138 {
139     while (*str) {
140         if (*str == '\n') {
141             sio01.rhrb_thrb = (unsigned char)'\r';
142             while (!(sio01.srb_csrb & 0x4))
143                 ;
144         }
145         sio01.rhrb_thrb = (unsigned char)*str++;
146         while (!(sio01.srb_csrb & 0x4))
147             ;
148     }
149 }
150
151 void config_apollo(void) {
152
153         int i;
154
155         dn_setup_model();
156
157         mach_sched_init=dn_sched_init; /* */
158         mach_init_IRQ=dn_init_IRQ;
159         mach_gettimeoffset   = dn_gettimeoffset;
160         mach_max_dma_address = 0xffffffff;
161         mach_hwclk           = dn_dummy_hwclk; /* */
162         mach_set_clock_mmss  = dn_dummy_set_clock_mmss; /* */
163         mach_reset           = dn_dummy_reset;  /* */
164 #ifdef CONFIG_HEARTBEAT
165         mach_heartbeat = dn_heartbeat;
166 #endif
167         mach_get_model       = dn_get_model;
168
169         cpuctrl=0xaa00;
170
171         /* clear DMA translation table */
172         for(i=0;i<0x400;i++)
173                 addr_xlat_map[i]=0;
174
175 }
176
177 irqreturn_t dn_timer_int(int irq, void *dev_id)
178 {
179         irq_handler_t timer_handler = dev_id;
180
181         volatile unsigned char x;
182
183         timer_handler(irq, dev_id);
184
185         x=*(volatile unsigned char *)(timer+3);
186         x=*(volatile unsigned char *)(timer+5);
187
188         return IRQ_HANDLED;
189 }
190
191 void dn_sched_init(irq_handler_t timer_routine)
192 {
193         /* program timer 1 */
194         *(volatile unsigned char *)(timer+3)=0x01;
195         *(volatile unsigned char *)(timer+1)=0x40;
196         *(volatile unsigned char *)(timer+5)=0x09;
197         *(volatile unsigned char *)(timer+7)=0xc4;
198
199         /* enable IRQ of PIC B */
200         *(volatile unsigned char *)(pica+1)&=(~8);
201
202 #if 0
203         printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3));
204         printk("*(0x10803) %02x\n",*(volatile unsigned char *)(timer+0x3));
205 #endif
206
207         request_irq(IRQ_APOLLO, dn_timer_int, 0, "time", timer_routine);
208 }
209
210 unsigned long dn_gettimeoffset(void) {
211
212         return 0xdeadbeef;
213
214 }
215
216 int dn_dummy_hwclk(int op, struct rtc_time *t) {
217
218
219   if(!op) { /* read */
220     t->tm_sec=rtc->second;
221     t->tm_min=rtc->minute;
222     t->tm_hour=rtc->hours;
223     t->tm_mday=rtc->day_of_month;
224     t->tm_wday=rtc->day_of_week;
225     t->tm_mon=rtc->month;
226     t->tm_year=rtc->year;
227   } else {
228     rtc->second=t->tm_sec;
229     rtc->minute=t->tm_min;
230     rtc->hours=t->tm_hour;
231     rtc->day_of_month=t->tm_mday;
232     if(t->tm_wday!=-1)
233       rtc->day_of_week=t->tm_wday;
234     rtc->month=t->tm_mon;
235     rtc->year=t->tm_year;
236   }
237
238   return 0;
239
240 }
241
242 int dn_dummy_set_clock_mmss(unsigned long nowtime) {
243
244   printk("set_clock_mmss\n");
245
246   return 0;
247
248 }
249
250 void dn_dummy_reset(void) {
251
252   dn_serial_print("The end !\n");
253
254   for(;;);
255
256 }
257
258 void dn_dummy_waitbut(void) {
259
260   dn_serial_print("waitbut\n");
261
262 }
263
264 static void dn_get_model(char *model)
265 {
266     strcpy(model, "Apollo ");
267     if (apollo_model >= APOLLO_DN3000 && apollo_model <= APOLLO_DN4500)
268         strcat(model, apollo_models[apollo_model - APOLLO_DN3000]);
269 }
270
271 #ifdef CONFIG_HEARTBEAT
272 static int dn_cpuctrl=0xff00;
273
274 static void dn_heartbeat(int on) {
275
276         if(on) {
277                 dn_cpuctrl&=~0x100;
278                 cpuctrl=dn_cpuctrl;
279         }
280         else {
281                 dn_cpuctrl&=~0x100;
282                 dn_cpuctrl|=0x100;
283                 cpuctrl=dn_cpuctrl;
284         }
285 }
286 #endif
287