X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=sidebyside;f=platforms%2Famiga%2Famiga-platform.c;h=266c122ac5496134e76123165b8ee671ea7fb4b1;hb=9efade7d17480599da0e03e2618dd0e432aa9b33;hp=4f947b89948b8cef8b7699ffdbb0e649d35e5fb4;hpb=b100315fc3b6a9c647adc0903a6e34ce71308fb7;p=pistorm

diff --git a/platforms/amiga/amiga-platform.c b/platforms/amiga/amiga-platform.c
index 4f947b8..266c122 100644
--- a/platforms/amiga/amiga-platform.c
+++ b/platforms/amiga/amiga-platform.c
@@ -1,19 +1,40 @@
+// SPDX-License-Identifier: MIT
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "../platforms.h"
+#include <ctype.h>
 #include "amiga-autoconf.h"
 #include "amiga-registers.h"
-#include "../shared/rtc.h"
+#include "hunk-reloc.h"
+#include "net/pi-net-enums.h"
+#include "net/pi-net.h"
+#include "piscsi/piscsi-enums.h"
+#include "piscsi/piscsi.h"
+#include "pistorm-dev/pistorm-dev-enums.h"
+#include "pistorm-dev/pistorm-dev.h"
+#include "platforms/platforms.h"
+#include "platforms/shared/rtc.h"
+#include "rtg/rtg.h"
+
+//#define DEBUG_AMIGA_PLATFORM
+
+#ifdef DEBUG_AMIGA_PLATFORM
+#define DEBUG printf
+#else
+#define DEBUG(...)
+#endif
 
 int handle_register_read_amiga(unsigned int addr, unsigned char type, unsigned int *val);
 int handle_register_write_amiga(unsigned int addr, unsigned int value, unsigned char type);
 
+extern int ac_z2_current_pic;
 extern int ac_z2_done;
 extern int ac_z2_pic_count;
 extern int ac_z2_type[AC_PIC_LIMIT];
 extern int ac_z2_index[AC_PIC_LIMIT];
 
+extern int ac_z3_current_pic;
 extern int ac_z3_pic_count;
 extern int ac_z3_done;
 extern int ac_z3_type[AC_PIC_LIMIT];
@@ -28,20 +49,41 @@ char *z3_autoconf_zap_id = "^3_autoconf_fast";
 extern const char *op_type_names[OP_TYPE_NUM];
 extern uint8_t cdtv_mode;
 extern uint8_t rtc_type;
+extern unsigned char cdtv_sram[32 * SIZE_KILO];
 
 #define min(a, b) (a < b) ? a : b
 #define max(a, b) (a > b) ? a : b
 
+uint8_t rtg_enabled = 0, piscsi_enabled = 0, pinet_enabled = 0, kick13_mode = 0, pistorm_dev_enabled = 1;
+
+extern uint32_t piscsi_base, pistorm_dev_base;
+
+extern void stop_cpu_emulation(uint8_t disasm_cur);
+
 inline int custom_read_amiga(struct emulator_config *cfg, unsigned int addr, unsigned int *val, unsigned char type) {
-    if (!ac_z2_done && addr >= AC_Z2_BASE && addr < AC_Z2_BASE + AC_SIZE) {
-        if (ac_z2_pic_count == 0) {
-            ac_z2_done = 1;
+    if (kick13_mode)
+        ac_z3_done = 1;
+
+    if ((!ac_z2_done || !ac_z3_done) && addr >= AC_Z2_BASE && addr < AC_Z2_BASE + AC_SIZE) {
+        if (!ac_z2_done && ac_z2_current_pic < ac_z2_pic_count) {
+            if (type == OP_TYPE_BYTE) {
+                *val = autoconfig_read_memory_8(cfg, addr - AC_Z2_BASE);
+                return 1;
+            }
+            printf("Unexpected %s read from Z2 autoconf addr %.X\n", op_type_names[type], addr - AC_Z2_BASE);
             return -1;
         }
-
-        if (type == OP_TYPE_BYTE) {
-            *val = autoconfig_read_memory_8(cfg, addr);
-            return 1;
+        if (!ac_z3_done && ac_z3_current_pic < ac_z3_pic_count) {
+            uint32_t addr_ = addr - AC_Z2_BASE;
+            if (addr_ & 0x02) {
+                addr_ = (addr_ - 2) + 0x100;
+            }
+            if (type == OP_TYPE_BYTE) {
+                *val = autoconfig_read_memory_z3_8(cfg, addr_ - AC_Z2_BASE);
+                return 1;
+            }
+            printf("Unexpected %s read from Z3 autoconf addr %.X\n", op_type_names[type], addr - AC_Z2_BASE);
+            return -1;
         }
     }
     if (!ac_z3_done && addr >= AC_Z3_BASE && addr < AC_Z3_BASE + AC_SIZE) {
@@ -51,29 +93,56 @@ inline int custom_read_amiga(struct emulator_config *cfg, unsigned int addr, uns
         }
 
         if (type == OP_TYPE_BYTE) {
-            *val = autoconfig_read_memory_z3_8(cfg, addr);
+            *val = autoconfig_read_memory_z3_8(cfg, addr - AC_Z3_BASE);
             return 1;
         }
-        else {
-            printf("Unexpected %s read from Z3 autoconf addr %.X\n", op_type_names[type], addr - AC_Z3_BASE);
-            //stop_emulation();
-        }
+        printf("Unexpected %s read from Z3 autoconf addr %.X\n", op_type_names[type], addr - AC_Z3_BASE);
+        return -1;
+    }
+
+    if (pistorm_dev_enabled && addr >= pistorm_dev_base && addr < pistorm_dev_base + (64 * SIZE_KILO)) {
+        *val = handle_pistorm_dev_read(addr, type);
+        return 1;
+    }
+
+    if (piscsi_enabled && addr >= piscsi_base && addr < piscsi_base + (64 * SIZE_KILO)) {
+        //printf("[Amiga-Custom] %s read from PISCSI base @$%.8X.\n", op_type_names[type], addr);
+        //stop_cpu_emulation(1);
+        *val = handle_piscsi_read(addr, type);
+        return 1;
     }
 
     return -1;
 }
 
 inline int custom_write_amiga(struct emulator_config *cfg, unsigned int addr, unsigned int val, unsigned char type) {
-    if (!ac_z2_done && addr >= AC_Z2_BASE && addr < AC_Z2_BASE + AC_SIZE) {
-        if (type == OP_TYPE_BYTE) {
-            if (ac_z2_pic_count == 0) {
-                ac_z2_done = 1;
-                return -1;
-            }
+    if (kick13_mode)
+        ac_z3_done = 1;
 
-            //printf("Write to Z2 autoconf area.\n");
-            autoconfig_write_memory_8(cfg, addr, val);
-            return 1;
+    if ((!ac_z2_done || !ac_z3_done) && addr >= AC_Z2_BASE && addr < AC_Z2_BASE + AC_SIZE) {
+        if (!ac_z2_done && ac_z2_current_pic < ac_z2_pic_count) {
+            if (type == OP_TYPE_BYTE) {
+                autoconfig_write_memory_8(cfg, addr - AC_Z2_BASE, val);
+                return 1;
+            }
+            printf("Unexpected %s write to Z2 autoconf addr %.X\n", op_type_names[type], addr - AC_Z2_BASE);
+            return -1;
+        }
+        if (!ac_z3_done && ac_z3_current_pic < ac_z3_pic_count) {
+            uint32_t addr_ = addr - AC_Z2_BASE;
+            if (addr_ & 0x02) {
+                addr_ = (addr_ - 2) + 0x100;
+            }
+            if (type == OP_TYPE_BYTE) {
+                autoconfig_write_memory_z3_8(cfg, addr_ - AC_Z2_BASE, val);
+                return 1;
+            }
+            else if (type == OP_TYPE_WORD) {
+                autoconfig_write_memory_z3_16(cfg, addr_ - AC_Z2_BASE, val);
+                return 1;
+            }
+            printf("Unexpected %s write to Z3 autoconf addr %.X\n", op_type_names[type], addr - AC_Z2_BASE);
+            return -1;
         }
     }
 
@@ -85,11 +154,11 @@ inline int custom_write_amiga(struct emulator_config *cfg, unsigned int addr, un
             }
 
             //printf("Write to autoconf area.\n");
-            autoconfig_write_memory_z3_8(cfg, addr, val);
+            autoconfig_write_memory_z3_8(cfg, addr - AC_Z3_BASE, val);
             return 1;
         }
         else if (type == OP_TYPE_WORD) {
-            autoconfig_write_memory_z3_16(cfg, addr, val);
+            autoconfig_write_memory_z3_16(cfg, addr - AC_Z3_BASE, val);
             return 1;
         }
         else {
@@ -98,6 +167,17 @@ inline int custom_write_amiga(struct emulator_config *cfg, unsigned int addr, un
         }
     }
 
+    if (pistorm_dev_enabled && addr >= pistorm_dev_base && addr < pistorm_dev_base + (64 * SIZE_KILO)) {
+        handle_pistorm_dev_write(addr, val, type);
+        return 1;
+    }
+
+    if (piscsi_enabled && addr >= piscsi_base && addr < piscsi_base + (64 * SIZE_KILO)) {
+        //printf("[Amiga-Custom] %s write to PISCSI base @$%.8x: %.8X\n", op_type_names[type], addr, val);
+        handle_piscsi_write(addr, val, type);
+        return 1;
+    }
+
     return -1;
 }
 
@@ -108,10 +188,6 @@ void adjust_ranges_amiga(struct emulator_config *cfg) {
     cfg->custom_low = 0;
 
     // Set up the min/max ranges for mapped reads/writes
-    if (gayle_emulation_enabled) {
-        cfg->mapped_low = GAYLEBASE;
-        cfg->mapped_high = GAYLEBASE + GAYLESIZE;
-    }
     for (int i = 0; i < MAX_NUM_MAPPED_ITEMS; i++) {
         if (cfg->map_type[i] != MAPTYPE_NONE) {
             if ((cfg->map_offset[i] != 0 && cfg->map_offset[i] < cfg->mapped_low) || cfg->mapped_low == 0)
@@ -121,19 +197,43 @@ void adjust_ranges_amiga(struct emulator_config *cfg) {
         }
     }
 
-    if (ac_z2_pic_count && !ac_z2_done) {
+    if ((ac_z2_pic_count || ac_z3_pic_count) && (!ac_z2_done || !ac_z3_done)) {
         if (cfg->custom_low == 0)
             cfg->custom_low = AC_Z2_BASE;
         else
             cfg->custom_low = min(cfg->custom_low, AC_Z2_BASE);
         cfg->custom_high = max(cfg->custom_high, AC_Z2_BASE + AC_SIZE);
     }
-    if (ac_z3_pic_count && !ac_z3_done) {
+    /*if (ac_z3_pic_count && !ac_z3_done) {
         if (cfg->custom_low == 0)
             cfg->custom_low = AC_Z3_BASE;
         else
             cfg->custom_low = min(cfg->custom_low, AC_Z3_BASE);
         cfg->custom_high = max(cfg->custom_high, AC_Z3_BASE + AC_SIZE);
+    }*/
+    if (rtg_enabled) {
+        if (cfg->custom_low == 0)
+            cfg->custom_low = PIGFX_RTG_BASE;
+        else
+            cfg->custom_low = min(cfg->custom_low, PIGFX_RTG_BASE);
+        cfg->custom_high = max(cfg->custom_high, PIGFX_UPPER);
+    }
+    if (piscsi_enabled) {
+        if (cfg->custom_low == 0)
+            cfg->custom_low = PISCSI_OFFSET;
+        else
+            cfg->custom_low = min(cfg->custom_low, PISCSI_OFFSET);
+        cfg->custom_high = max(cfg->custom_high, PISCSI_UPPER);
+        if (piscsi_base != 0) {
+            cfg->custom_low = min(cfg->custom_low, piscsi_base);
+        }
+    }
+    if (pinet_enabled) {
+        if (cfg->custom_low == 0)
+            cfg->custom_low = PINET_OFFSET;
+        else
+            cfg->custom_low = min(cfg->custom_low, PINET_OFFSET);
+        cfg->custom_high = max(cfg->custom_high, PINET_UPPER);
     }
 
     printf("Platform custom range: %.8X-%.8X\n", cfg->custom_low, cfg->custom_high);
@@ -142,6 +242,26 @@ void adjust_ranges_amiga(struct emulator_config *cfg) {
 
 int setup_platform_amiga(struct emulator_config *cfg) {
     printf("Performing setup for Amiga platform.\n");
+
+    if (strlen(cfg->platform->subsys)) {
+        printf("Subsystem is [%s]\n", cfg->platform->subsys);
+        if (strcmp(cfg->platform->subsys, "4000") == 0 || strcmp(cfg->platform->subsys, "3000") == 0) {
+            printf("Adjusting Gayle accesses for A3000/4000 Kickstart.\n");
+            adjust_gayle_4000();
+        }
+        else if (strcmp(cfg->platform->subsys, "1200") == 0 || strcmp(cfg->platform->subsys, "cd32") == 0) {
+            printf("Adjusting Gayle accesses for A1200/CD32 Kickstart.\n");
+            adjust_gayle_1200();
+        }
+        else if (strcmp(cfg->platform->subsys, "cdtv") == 0) {
+            printf("Configuring platform for CDTV emulation.\n");
+            cdtv_mode = 1;
+            rtc_type = RTC_TYPE_MSM;
+        }
+    }
+    else
+        printf("No sub system specified.\n");
+
     // Look for Z2 autoconf Fast RAM by id
     int index = get_named_mapped_item(cfg, z2_autoconf_id);
     more_z2_fast:;
@@ -150,7 +270,7 @@ int setup_platform_amiga(struct emulator_config *cfg) {
         cfg->map_id[index][0] = '^';
         int resize_data = 0;
         if (cfg->map_size[index] > 8 * SIZE_MEGA) {
-            printf("Attempted to configure more than 8MB of Z2 Fast RAM, downsizng to 8MB.\n");
+            printf("Attempted to configure more than 8MB of Z2 Fast RAM, downsizing to 8MB.\n");
             resize_data = 8 * SIZE_MEGA;
         }
         else if(cfg->map_size[index] != 2 * SIZE_MEGA && cfg->map_size[index] != 4 * SIZE_MEGA && cfg->map_size[index] != 8 * SIZE_MEGA) {
@@ -169,9 +289,10 @@ int setup_platform_amiga(struct emulator_config *cfg) {
             cfg->map_data[index] = (unsigned char *)malloc(cfg->map_size[index]);
         }
         printf("%dMB of Z2 Fast RAM configured at $%lx\n", cfg->map_size[index] / SIZE_MEGA, cfg->map_offset[index]);
-        ac_z2_type[ac_z2_pic_count] = ACTYPE_MAPFAST_Z2;
-        ac_z2_index[ac_z2_pic_count] = index;
-        ac_z2_pic_count++;
+        add_z2_pic(ACTYPE_MAPFAST_Z2, index);
+        //ac_z2_type[ac_z2_pic_count] = ACTYPE_MAPFAST_Z2;
+        //ac_z2_index[ac_z2_pic_count] = index;
+        //ac_z2_pic_count++;
     }
     else
         printf("No Z2 Fast RAM configured.\n");
@@ -179,7 +300,7 @@ int setup_platform_amiga(struct emulator_config *cfg) {
     index = get_named_mapped_item(cfg, z2_autoconf_id);
     if (index != -1)
         goto more_z2_fast;
-    
+
     for (int i = 0; i < MAX_NUM_MAPPED_ITEMS; i ++) {
         // Restore any "zapped" autoconf items so they can be reinitialized if needed.
         if (cfg->map_id[i] && strcmp(cfg->map_id[i], z2_autoconf_zap_id) == 0) {
@@ -213,11 +334,24 @@ int setup_platform_amiga(struct emulator_config *cfg) {
     }
 
     adjust_ranges_amiga(cfg);
-    
+
+    if (cdtv_mode) {
+        FILE *in = fopen("data/cdtv.sram", "rb");
+        if (in != NULL) {
+            printf("Loaded CDTV SRAM.\n");
+            fread(cdtv_sram, 32 * SIZE_KILO, 1, in);
+            fclose(in);
+        }
+    }
+
+    if (pistorm_dev_enabled) {
+        add_z2_pic(ACTYPE_PISTORM_DEV, 0);
+    }
+
     return 0;
 }
 
-void setvar_amiga(char *var, char *val) {
+void setvar_amiga(struct emulator_config *cfg, char *var, char *val) {
     if (!var)
         return;
 
@@ -236,26 +370,139 @@ void setvar_amiga(char *var, char *val) {
         if (val && strlen(val) != 0)
             set_hard_drive_image_file_amiga(0, val);
     }
+    if (strcmp(var, "hdd1") == 0) {
+        if (val && strlen(val) != 0)
+            set_hard_drive_image_file_amiga(1, val);
+    }
     if (strcmp(var, "cdtv") == 0) {
+        printf("[AMIGA] CDTV mode enabled.\n");
         cdtv_mode = 1;
     }
-    if (strcmp(var, "rtctype") == 0) {
+    if (strcmp(var, "rtg") == 0 && !rtg_enabled) {
+        if (init_rtg_data(cfg)) {
+            printf("[AMIGA] RTG Enabled.\n");
+            rtg_enabled = 1;
+            adjust_ranges_amiga(cfg);
+        }
+        else
+            printf("[AMIGA} Failed to enable RTG.\n");
+    }
+    if (strcmp(var, "kick13") == 0) {
+        printf("[AMIGA] Kickstart 1.3 mode enabled, Z3 PICs will not be enumerated.\n");
+        kick13_mode = 1;
+    }
+
+    // PiSCSI stuff
+    if (strcmp(var, "piscsi") == 0 && !piscsi_enabled) {
+        printf("[AMIGA] PISCSI Interface Enabled.\n");
+        piscsi_enabled = 1;
+        piscsi_init();
+        add_z2_pic(ACTYPE_PISCSI, 0);
+        //ac_z2_type[ac_z2_pic_count] = ACTYPE_PISCSI;
+        //ac_z2_pic_count++;
+        adjust_ranges_amiga(cfg);
+    }
+    if (piscsi_enabled) {
+        if (strcmp(var, "piscsi0") == 0) {
+            piscsi_map_drive(val, 0);
+        }
+        if (strcmp(var, "piscsi1") == 0) {
+            piscsi_map_drive(val, 1);
+        }
+        if (strcmp(var, "piscsi2") == 0) {
+            piscsi_map_drive(val, 2);
+        }
+        if (strcmp(var, "piscsi3") == 0) {
+            piscsi_map_drive(val, 3);
+        }
+        if (strcmp(var, "piscsi4") == 0) {
+            piscsi_map_drive(val, 4);
+        }
+        if (strcmp(var, "piscsi5") == 0) {
+            piscsi_map_drive(val, 5);
+        }
+        if (strcmp(var, "piscsi6") == 0) {
+            piscsi_map_drive(val, 6);
+        }
+    }
+
+    // Pi-Net stuff
+    if (strcmp(var, "pi-net") == 0 && !pinet_enabled) {
+        printf("[AMIGA] PI-NET Interface Enabled.\n");
+        pinet_enabled = 1;
+        pinet_init(val);
+        adjust_ranges_amiga(cfg);
+    }
+
+    if (strcmp(var, "no-pistorm-dev") == 0) {
+        pistorm_dev_enabled = 0;
+        printf("[AMIGA] Disabling PiStorm interaction device.\n");
+    }
+
+    // RTC stuff
+    if (strcmp(var, "rtc_type") == 0) {
         if (val && strlen(val) != 0) {
             if (strcmp(val, "msm") == 0) {
+                printf("[AMIGA] RTC type set to MSM.\n");
                 rtc_type = RTC_TYPE_MSM;
             }
-            rtc_type = RTC_TYPE_RICOH;
+            else {
+                printf("[AMIGA] RTC type set to Ricoh.\n");
+                rtc_type = RTC_TYPE_RICOH;
+            }
         }
     }
 }
 
 void handle_reset_amiga(struct emulator_config *cfg) {
-    ac_z3_done = 0;
-    ac_z2_done = 0;
+    ac_z2_done = (ac_z2_pic_count == 0);
+    ac_z3_done = (ac_z3_pic_count == 0);
+    ac_z2_current_pic = 0;
+    ac_z3_current_pic = 0;
+
+    DEBUG("[AMIGA] Reset handler.\n");
+    DEBUG("[AMIGA] AC done - Z2: %d Z3: %d.\n", ac_z2_done, ac_z3_done);
+
+    if (piscsi_enabled)
+        piscsi_refresh_drives();
 
     adjust_ranges_amiga(cfg);
 }
 
+void shutdown_platform_amiga(struct emulator_config *cfg) {
+    if (cfg) {}
+    if (cdtv_mode) {
+        FILE *out = fopen("data/cdtv.sram", "wb+");
+        if (out != NULL) {
+            printf("Saving CDTV SRAM.\n");
+            fwrite(cdtv_sram, 32 * SIZE_KILO, 1, out);
+            fclose(out);
+        }
+        else {
+            printf("Failed to write CDTV SRAM to disk.\n");
+        }
+    }
+    if (cfg->platform->subsys) {
+        free(cfg->platform->subsys);
+    }
+    if (piscsi_enabled) {
+        piscsi_shutdown();
+        piscsi_enabled = 0;
+    }
+    if (rtg_enabled) {
+        shutdown_rtg();
+        rtg_enabled = 0;
+    }
+    if (pinet_enabled) {
+        pinet_enabled = 0;
+    }
+
+    cdtv_mode = 0;
+
+    autoconfig_reset_all();
+    printf("[AMIGA] Platform shutdown completed.\n");
+}
+
 void create_platform_amiga(struct platform_config *cfg, char *subsys) {
     cfg->register_read = handle_register_read_amiga;
     cfg->register_write = handle_register_write_amiga;
@@ -263,6 +510,7 @@ void create_platform_amiga(struct platform_config *cfg, char *subsys) {
     cfg->custom_write = custom_write_amiga;
     cfg->platform_initial_setup = setup_platform_amiga;
     cfg->handle_reset = handle_reset_amiga;
+    cfg->shutdown = shutdown_platform_amiga;
 
     cfg->setvar = setvar_amiga;
     cfg->id = PLATFORM_AMIGA;
@@ -270,5 +518,8 @@ void create_platform_amiga(struct platform_config *cfg, char *subsys) {
     if (subsys) {
         cfg->subsys = malloc(strlen(subsys) + 1);
         strcpy(cfg->subsys, subsys);
+        for (unsigned int i = 0; i < strlen(cfg->subsys); i++) {
+            cfg->subsys[i] = tolower(cfg->subsys[i]);
+        }
     }
 }