/[gxemul]/trunk/src/devices/dev_openpic.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Diff of /trunk/src/devices/dev_openpic.c

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revision 63 by dpavlin, Sat Oct 13 15:05:59 2007 UTC revision 66 by dpavlin, Sun Oct 14 12:03:25 2007 UTC
# Line 27  Line 27 
27   *  $Id: dev_openpic.c,v 1.14 2007/09/11 21:42:52 debug Exp $   *  $Id: dev_openpic.c,v 1.14 2007/09/11 21:42:52 debug Exp $
28   *     *  
29   *  COMMENT: OpenPIC Interrupt controller (used by sandpoint ppc)   *  COMMENT: OpenPIC Interrupt controller (used by sandpoint ppc)
30   *  based on dev_openpic.c   *  based on dev_gc.c
31   */   */
32    
33  #include <stdio.h>  #include <stdio.h>
# Line 82  void openpic_lo_interrupt_deassert(struc Line 82  void openpic_lo_interrupt_deassert(struc
82                  INTERRUPT_DEASSERT(d->cpu_irq);                  INTERRUPT_DEASSERT(d->cpu_irq);
83  }  }
84    
85    #define OPENPIC_MASK                            0x80000000
86    #define OPENPIC_ACTIVITY                        0x40000000      /* Read Only */
87    #define OPENPIC_PRIORITY_MASK                   0x000f0000
88    #define OPENPIC_PRIORITY_SHIFT                  16
89    #define OPENPIC_VECTOR_MASK                     0x000000ff
90    
91    #define OPENPIC_VEC_TIMER       64      /* and up */
92    #define OPENPIC_VEC_IPI         72      /* and up */
93    #define OPENPIC_VEC_SPURIOUS    127
94    
95  DEVICE_ACCESS(openpic)  DEVICE_ACCESS(openpic)
96  {  {
97          struct openpic_data *d = extra;  //      struct openpic_data *d = extra;
98          uint64_t idata = 0, odata = 0;          uint64_t idata = 0, odata = 0;
99    
100          if (writeflag == MEM_WRITE)          if (writeflag == MEM_WRITE)
101                  idata = memory_readmax64(cpu, data, len);                  idata = memory_readmax64(cpu, data, len);
102    
103            uint64_t priority,vector, active;
104            priority = ( relative_addr & 0xf000 );
105            vector   = ( relative_addr & 0x00ff );
106            active   = ( relative_addr & 0x4000 );
107    
108            debug("[ openpic: access at %04x -> priority: %x vector: 0x%02x %d active: %x ]\n",
109                    (int)relative_addr, (int)priority, (int)vector, (int)vector, (int)active );
110    
111          switch (relative_addr) {          switch (relative_addr) {
112    
113            case 0x00:
114                    if (writeflag == MEM_READ) {
115                            // version 1.2
116                            odata = 0x02000000;
117                            fatal("[ openpic: read from "
118                                "offset 0x%x (OpenPIC version) = %x]\n", (int)
119                                relative_addr, (int)odata);
120                    }
121                    fatal("[ openpic: unimplemented write to "
122                        "offset 0x%x: data=0x%x (OpenPIC version) ]\n", (int)
123                        relative_addr, (int)idata);
124                    break;
125    
126  #if 0  #if 0
127  #define INT_STATE_REG_H  (interrupt_reg + 0x00)  #define INT_STATE_REG_H  (interrupt_reg + 0x00)
128  #define INT_ENABLE_REG_H (interrupt_reg + 0x04)  #define INT_ENABLE_REG_H (interrupt_reg + 0x04)
# Line 104  DEVICE_ACCESS(openpic) Line 134  DEVICE_ACCESS(openpic)
134  #define INT_LEVEL_REG_L  (interrupt_reg + 0x1c)  #define INT_LEVEL_REG_L  (interrupt_reg + 0x1c)
135  #endif  #endif
136    
137    #if 0
138          case 0x10:          case 0x10:
139                  if (writeflag == MEM_READ)                  if (writeflag == MEM_READ)
140                          odata = d->status_hi & d->enable_hi;                          odata = d->status_hi & d->enable_hi;
# Line 190  DEVICE_ACCESS(openpic) Line 221  DEVICE_ACCESS(openpic)
221          case 0x2c:          case 0x2c:
222                  /*  Avoid a debug message.  */                  /*  Avoid a debug message.  */
223                  break;                  break;
224    #endif
225          default:if (writeflag == MEM_WRITE) {          default:if (writeflag == MEM_WRITE) {
226                          fatal("[ openpic: unimplemented write to "                          fatal("[ openpic: unimplemented write to "
227                              "offset 0x%x: data=0x%x ]\n", (int)                              "offset 0x%x: data=0x%x ]\n", (int)
# Line 220  DEVINIT(openpic) Line 251  DEVINIT(openpic)
251          INTERRUPT_CONNECT(devinit->interrupt_path, d->cpu_irq);          INTERRUPT_CONNECT(devinit->interrupt_path, d->cpu_irq);
252    
253          /*          /*
254           *  Register the 64 Grand Central interrupts (32 lo, 32 hi):           *  Register the 126 OpenPIC interrupts
255           */           */
256          for (i=0; i<32; i++) {          for (i=0; i<126; i++) {
257                  struct interrupt template;                  struct interrupt template;
258                  char n[300];                  char n[300];
259                  snprintf(n, sizeof(n), "%s.openpic.lo.%i",                  snprintf(n, sizeof(n), "%s.openpic.%i",
260                      devinit->interrupt_path, i);                      devinit->interrupt_path, i);
261                  memset(&template, 0, sizeof(template));                  memset(&template, 0, sizeof(template));
262                  template.line = 1 << i;                  template.line = 1 << i;
# Line 234  DEVINIT(openpic) Line 265  DEVINIT(openpic)
265                  template.interrupt_assert = openpic_lo_interrupt_assert;                  template.interrupt_assert = openpic_lo_interrupt_assert;
266                  template.interrupt_deassert = openpic_lo_interrupt_deassert;                  template.interrupt_deassert = openpic_lo_interrupt_deassert;
267                  interrupt_handler_register(&template);                  interrupt_handler_register(&template);
   
                 snprintf(n, sizeof(n), "%s.openpic.hi.%i",  
                     devinit->interrupt_path, i);  
                 memset(&template, 0, sizeof(template));  
                 template.line = 1 << i;  
                 template.name = n;  
                 template.extra = d;  
                 template.interrupt_assert = openpic_hi_interrupt_assert;  
                 template.interrupt_deassert = openpic_hi_interrupt_deassert;  
                 interrupt_handler_register(&template);  
268          }          }
269    
270          memory_device_register(devinit->machine->memory, "openpic",          memory_device_register(devinit->machine->memory, "openpic",
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