/[gxemul]/trunk/src/devices/dev_sgi_ip30.c
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revision 24 by dpavlin, Mon Oct 8 16:19:56 2007 UTC revision 34 by dpavlin, Mon Oct 8 16:21:17 2007 UTC
# Line 1  Line 1 
1  /*  /*
2   *  Copyright (C) 2004-2006  Anders Gavare.  All rights reserved.   *  Copyright (C) 2004-2007  Anders Gavare.  All rights reserved.
3   *   *
4   *  Redistribution and use in source and binary forms, with or without   *  Redistribution and use in source and binary forms, with or without
5   *  modification, are permitted provided that the following conditions are met:   *  modification, are permitted provided that the following conditions are met:
# Line 25  Line 25 
25   *  SUCH DAMAGE.   *  SUCH DAMAGE.
26   *     *  
27   *   *
28   *  $Id: dev_sgi_ip30.c,v 1.21 2006/03/04 12:38:48 debug Exp $   *  $Id: dev_sgi_ip30.c,v 1.24 2007/02/03 20:14:23 debug Exp $
29   *     *  
30   *  SGI IP30 stuff.   *  SGI IP30 stuff.
31   *   *
# Line 37  Line 37 
37  #include <string.h>  #include <string.h>
38    
39  #include "cpu.h"  #include "cpu.h"
40  #include "devices.h"  #include "device.h"
41  #include "machine.h"  #include "machine.h"
42  #include "memory.h"  #include "memory.h"
43  #include "misc.h"  #include "misc.h"
44    
45    
46    #define DEV_SGI_IP30_LENGTH             0x80000
47    
48    struct sgi_ip30_data {
49            /*  ip30:  */
50            uint64_t                imask0;         /*  0x10000  */
51            uint64_t                reg_0x10018;
52            uint64_t                isr;            /*  0x10030  */
53            uint64_t                reg_0x20000;
54            uint64_t                reg_0x30000;
55    
56            /*  ip30_2:  */
57            uint64_t                reg_0x0029c;
58    
59            /*  ip30_3:  */
60            uint64_t                reg_0x00284;
61    
62            /*  ip30_4:  */
63            uint64_t                reg_0x000b0;
64    
65            /*  ip30_5:  */
66            uint64_t                reg_0x00000;
67    };
68    
69    
70  void dev_sgi_ip30_tick(struct cpu *cpu, void *extra)  void dev_sgi_ip30_tick(struct cpu *cpu, void *extra)
71  {  {
72          struct sgi_ip30_data *d = extra;          struct sgi_ip30_data *d = extra;
# Line 52  void dev_sgi_ip30_tick(struct cpu *cpu, Line 76  void dev_sgi_ip30_tick(struct cpu *cpu,
76          if (d->imask0 & ((int64_t)1<<50)) {          if (d->imask0 & ((int64_t)1<<50)) {
77                  /*  TODO: Only interrupt if reg 0x20000 (the counter)                  /*  TODO: Only interrupt if reg 0x20000 (the counter)
78                          has passed the compare (0x30000).  */                          has passed the compare (0x30000).  */
79                  cpu_interrupt(cpu, 8+1 + 50);  fatal("IP30 legacy interrupt rewrite: TODO\n");
80    abort();
81    //              cpu_interrupt(cpu, 8+1 + 50);
82          }          }
83  }  }
84    
# Line 98  DEVICE_ACCESS(sgi_ip30) Line 124  DEVICE_ACCESS(sgi_ip30)
124          case 0x10020:   /*  Set ISR, according to Linux/IP30  */          case 0x10020:   /*  Set ISR, according to Linux/IP30  */
125                  d->isr = idata;                  d->isr = idata;
126                  /*  Recalculate CPU interrupt assertions:  */                  /*  Recalculate CPU interrupt assertions:  */
127                  cpu_interrupt(cpu, 8);  fatal("IP30 legacy interrupt rewrite: TODO\n");
128    abort();
129    //              cpu_interrupt(cpu, 8);
130                  break;                  break;
131          case 0x10028:   /*  Clear ISR, according to Linux/IP30  */          case 0x10028:   /*  Clear ISR, according to Linux/IP30  */
132                  d->isr &= ~idata;                  d->isr &= ~idata;
133                  /*  Recalculate CPU interrupt assertions:  */                  /*  Recalculate CPU interrupt assertions:  */
134                  cpu_interrupt(cpu, 8);  fatal("IP30 legacy interrupt rewrite: TODO\n");
135    abort();
136    //              cpu_interrupt(cpu, 8);
137                  break;                  break;
138          case 0x10030:   /*  Interrupt Status Register  */          case 0x10030:   /*  Interrupt Status Register  */
139                  if (writeflag == MEM_WRITE) {                  if (writeflag == MEM_WRITE) {
140                          /*  Clear-on-write  (TODO: is this correct?)  */                          /*  Clear-on-write  (TODO: is this correct?)  */
141                          d->isr &= ~idata;                          d->isr &= ~idata;
142                          /*  Recalculate CPU interrupt assertions:  */                          /*  Recalculate CPU interrupt assertions:  */
143                          cpu_interrupt(cpu, 8);  fatal("IP30 legacy interrupt rewrite: TODO\n");
144    abort();
145    //                      cpu_interrupt(cpu, 8);
146                  } else {                  } else {
147                          odata = d->isr;                          odata = d->isr;
148                  }                  }
# Line 344  DEVICE_ACCESS(sgi_ip30_5) Line 376  DEVICE_ACCESS(sgi_ip30_5)
376  }  }
377    
378    
379  /*  DEVINIT(sgi_ip30)
  *  dev_sgi_ip30_init():  
  */  
 struct sgi_ip30_data *dev_sgi_ip30_init(struct machine *machine,  
         struct memory *mem, uint64_t baseaddr)  
380  {  {
381          struct sgi_ip30_data *d = malloc(sizeof(struct sgi_ip30_data));          struct sgi_ip30_data *d = malloc(sizeof(struct sgi_ip30_data));
382          if (d == NULL) {          if (d == NULL) {
# Line 357  struct sgi_ip30_data *dev_sgi_ip30_init( Line 385  struct sgi_ip30_data *dev_sgi_ip30_init(
385          }          }
386          memset(d, 0, sizeof(struct sgi_ip30_data));          memset(d, 0, sizeof(struct sgi_ip30_data));
387    
388          memory_device_register(mem, "sgi_ip30_1", baseaddr,          memory_device_register(devinit->machine->memory, "sgi_ip30_1",
389              DEV_SGI_IP30_LENGTH, dev_sgi_ip30_access, (void *)d,              devinit->addr, DEV_SGI_IP30_LENGTH, dev_sgi_ip30_access, (void *)d,
390              DM_DEFAULT, NULL);              DM_DEFAULT, NULL);
391          memory_device_register(mem, "sgi_ip30_2", 0x10000000,          memory_device_register(devinit->machine->memory, "sgi_ip30_2",
392              0x10000, dev_sgi_ip30_2_access, (void *)d, DM_DEFAULT, NULL);              0x10000000, 0x10000, dev_sgi_ip30_2_access, (void *)d, DM_DEFAULT,
393          memory_device_register(mem, "sgi_ip30_3", 0x1f000000,              NULL);
394              0x10000, dev_sgi_ip30_3_access, (void *)d, DM_DEFAULT, NULL);          memory_device_register(devinit->machine->memory, "sgi_ip30_3",
395          memory_device_register(mem, "sgi_ip30_4", 0x1f600000,              0x1f000000, 0x10000, dev_sgi_ip30_3_access, (void *)d, DM_DEFAULT,
396              0x10000, dev_sgi_ip30_4_access, (void *)d, DM_DEFAULT, NULL);              NULL);
397          memory_device_register(mem, "sgi_ip30_5", 0x1f6c0000,          memory_device_register(devinit->machine->memory, "sgi_ip30_4",
398              0x10000, dev_sgi_ip30_5_access, (void *)d, DM_DEFAULT, NULL);              0x1f600000, 0x10000, dev_sgi_ip30_4_access, (void *)d, DM_DEFAULT,
399                NULL);
400            memory_device_register(devinit->machine->memory, "sgi_ip30_5",
401                0x1f6c0000, 0x10000, dev_sgi_ip30_5_access, (void *)d, DM_DEFAULT,
402                NULL);
403    
404          machine_add_tickfunction(machine, dev_sgi_ip30_tick, d, 16, 0.0);          machine_add_tickfunction(devinit->machine,
405                dev_sgi_ip30_tick, d, 16, 0.0);
406    
407          return d;          return 1;
408  }  }
409    
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