/[gxemul]/trunk/src/devices/dev_kn01.c
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revision 22 by dpavlin, Mon Oct 8 16:19:37 2007 UTC revision 34 by dpavlin, Mon Oct 8 16:21:17 2007 UTC
# Line 1  Line 1 
1  /*  /*
2   *  Copyright (C) 2003-2006  Anders Gavare.  All rights reserved.   *  Copyright (C) 2003-2007  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_kn01.c,v 1.8 2006/01/01 13:17:16 debug Exp $   *  $Id: dev_kn01.c,v 1.10 2007/01/05 15:20:06 debug Exp $
29   *     *  
30   *  KN01 stuff ("PMAX", DECstation type 1); CSR (System Control Register)   *  KN01 stuff ("PMAX", DECstation type 1); CSR (System Control Register)
31   *  and VDAC.   *  and VDAC.
# Line 49  Line 49 
49  #include "dec_kn01.h"  #include "dec_kn01.h"
50    
51    
52  struct kn01_csr_data {  struct kn01_data {
53          int             color_fb;          int                     color_fb;
54          int             csr;          uint32_t                csr;
55  };  };
56    
57    
# Line 78  struct vdac_data { Line 78  struct vdac_data {
78  };  };
79    
80    
81  /*  DEVICE_ACCESS(kn01)
  *  dev_kn01_csr_access():  
  */  
 DEVICE_ACCESS(kn01_csr)  
82  {  {
83          struct kn01_csr_data *k = extra;          struct kn01_data *d = extra;
84          int csr;          int csr;
85    
86          if (writeflag == MEM_WRITE) {          if (writeflag == MEM_WRITE) {
# Line 93  DEVICE_ACCESS(kn01_csr) Line 90  DEVICE_ACCESS(kn01_csr)
90    
91          /*  Read:  */          /*  Read:  */
92          if (len != 2 || relative_addr != 0) {          if (len != 2 || relative_addr != 0) {
93                  fatal("[ kn01_csr: trying to read something which is not "                  fatal("[ kn01: trying to read something which is not "
94                      "the first half-word of the csr ]");                      "the first half-word of the csr ]");
95          }          }
96    
97          csr = k->csr;          csr = d->csr;
98    
99          if (cpu->byte_order == EMUL_LITTLE_ENDIAN) {          if (cpu->byte_order == EMUL_LITTLE_ENDIAN) {
100                  data[0] = csr & 0xff;                  data[0] = csr & 0xff;
# Line 254  void dev_vdac_init(struct memory *mem, u Line 251  void dev_vdac_init(struct memory *mem, u
251    
252    
253  /*  /*
254   *  dev_kn01_csr_init():   *  dev_kn01_init():
255   */   */
256  void dev_kn01_csr_init(struct memory *mem, uint64_t baseaddr, int color_fb)  void dev_kn01_init(struct memory *mem, uint64_t baseaddr, int color_fb)
257  {  {
258          struct kn01_csr_data *k = malloc(sizeof(struct kn01_csr_data));          struct kn01_data *d = malloc(sizeof(struct kn01_data));
259          if (k == NULL) {          if (d == NULL) {
260                  fprintf(stderr, "out of memory\n");                  fprintf(stderr, "out of memory\n");
261                  exit(1);                  exit(1);
262          }          }
263    
264          memset(k, 0, sizeof(struct kn01_csr_data));          memset(d, 0, sizeof(struct kn01_data));
265          k->color_fb = color_fb;          d->color_fb = color_fb;
266    
267          k->csr = 0;          d->csr = 0;
268          k->csr |= (color_fb? 0 : KN01_CSR_MONO);          d->csr |= (color_fb? 0 : KN01_CSR_MONO);
269    
270          memory_device_register(mem, "kn01_csr", baseaddr,          memory_device_register(mem, "kn01", baseaddr,
271              DEV_KN01_CSR_LENGTH, dev_kn01_csr_access, k, DM_DEFAULT, NULL);              DEV_KN01_LENGTH, dev_kn01_access, d, DM_DEFAULT, NULL);
272  }  }
273    
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