git.sesse.net Git - pistorm/blob - platforms/amiga/pistorm-dev/pistorm_dev_amiga/pistorm_dev.c

   1 // SPDX-License-Identifier: MIT
   2
   3 #include "../pistorm-dev-enums.h"
   4
   5 #include <exec/resident.h>
   6 #include <exec/errors.h>
   7 #include <exec/memory.h>
   8 #include <exec/lists.h>
   9 #include <exec/alerts.h>
  10 #include <exec/tasks.h>
  11 #include <exec/io.h>
  12 #include <exec/execbase.h>
  13
  14 #include <libraries/expansion.h>
  15
  16 #include <devices/trackdisk.h>
  17 #include <devices/timer.h>
  18 #include <devices/scsidisk.h>
  19
  20 #include <dos/filehandler.h>
  21
  22 #include <proto/exec.h>
  23 #include <proto/disk.h>
  24 #include <proto/expansion.h>
  25
  26 #ifdef HAS_STDLIB
  27 #include <stdio.h>
  28 #endif
  29
  30 unsigned int pistorm_base_addr = 0xFFFFFFFF;
  31
  32 #define WRITESHORT(cmd, val) *(unsigned short *)((unsigned int)(pistorm_base_addr+cmd)) = val;
  33 #define WRITELONG(cmd, val) *(unsigned int *)((unsigned int)(pistorm_base_addr+cmd)) = val;
  34 #define WRITEBYTE(cmd, val) *(unsigned char *)((unsigned int)(pistorm_base_addr+cmd)) = val;
  35
  36 #define READSHORT(cmd, var) var = *(volatile unsigned short *)(pistorm_base_addr + cmd);
  37 #define READLONG(cmd, var) var = *(volatile unsigned int *)(pistorm_base_addr + cmd);
  38 #define READBYTE(cmd, var) var = *(volatile unsigned short *)(pistorm_base_addr + cmd);
  39
  40 #define RETURN_CMDRES READSHORT(PI_CMDRESULT, short_val); return short_val;
  41
  42 unsigned short short_val;
  43
  44 unsigned int pi_find_pistorm() {
  45     unsigned int board_addr = 0xFFFFFFFF;
  46     struct ExpansionBase *expansionbase = (struct ExpansionBase *)OpenLibrary("expansion.library", 0L);
  47
  48     if (expansionbase == NULL) {
  49 #ifdef HAS_STDLIB
  50             printf("Failed to open expansion.library.\n");
  51 #endif
  52         }
  53         else {
  54                 struct ConfigDev* cd = NULL;
  55                 cd = (struct ConfigDev*)FindConfigDev(cd, 2011, 0x6B);
  56                 if (cd != NULL)
  57                         board_addr = (unsigned int)cd->cd_BoardAddr;
  58         CloseLibrary((struct Library *)expansionbase);
  59         }
  60     return board_addr;
  61 }
  62
  63 void pi_reset_amiga(unsigned short reset_code) {
  64     WRITESHORT(PI_CMD_RESET, reset_code);
  65 }
  66
  67 unsigned short pi_shutdown_pi(unsigned short shutdown_code) {
  68         WRITESHORT(PI_CMD_SHUTDOWN, shutdown_code);
  69
  70         RETURN_CMDRES;
  71 }
  72
  73 unsigned short pi_confirm_shutdown(unsigned short shutdown_code) {
  74         WRITESHORT(PI_CMD_CONFIRMSHUTDOWN, shutdown_code);
  75
  76         RETURN_CMDRES;
  77 }
  78
  79 // Kickstart/Extended ROM stuff
  80 unsigned short pi_remap_kickrom(char *filename) {
  81         WRITELONG(PI_STR1, (unsigned int)filename);
  82         WRITESHORT(PI_CMD_KICKROM, 1);
  83
  84         RETURN_CMDRES;
  85 }
  86
  87 unsigned short pi_remap_extrom(char *filename) {
  88         WRITELONG(PI_STR1, (unsigned int)filename);
  89         WRITESHORT(PI_CMD_EXTROM, 1);
  90
  91         RETURN_CMDRES;
  92 }
  93
  94 // PiSCSI stuff
  95 // TODO: There's currently no way to read back what drives are mounted at which SCSI index.
  96 unsigned short pi_piscsi_map_drive(char *filename, unsigned char index) {
  97         WRITESHORT(PI_WORD1, index);
  98         WRITELONG(PI_STR1, (unsigned int)filename);
  99         WRITESHORT(PI_CMD_PISCSI_CTRL, PISCSI_CTRL_MAP);
 100
 101         RETURN_CMDRES;
 102 }
 103
 104 unsigned short pi_piscsi_unmap_drive(unsigned char index) {
 105         WRITESHORT(PI_WORD1, index);
 106         WRITESHORT(PI_CMD_PISCSI_CTRL, PISCSI_CTRL_UNMAP);
 107
 108         RETURN_CMDRES;
 109 }
 110
 111 // For virtual removable media. Not yet implemented.
 112 unsigned short pi_piscsi_insert_media(char *filename, unsigned char index) {
 113         WRITESHORT(PI_WORD1, index);
 114         WRITELONG(PI_STR1, (unsigned int)filename);
 115         WRITESHORT(PI_CMD_PISCSI_CTRL, PISCSI_CTRL_INSERT);
 116
 117         RETURN_CMDRES;
 118 }
 119
 120 unsigned short pi_piscsi_eject_media(unsigned char index) {
 121         WRITESHORT(PI_WORD1, index);
 122         WRITESHORT(PI_CMD_PISCSI_CTRL, PISCSI_CTRL_EJECT);
 123
 124         RETURN_CMDRES;
 125 }
 126
 127 // Config file stuff
 128 unsigned short pi_load_config(char *filename) {
 129         WRITELONG(PI_STR1, (unsigned int)filename);
 130         WRITESHORT(PI_CMD_SWITCHCONFIG, PICFG_LOAD);
 131
 132         RETURN_CMDRES;
 133 }
 134
 135 void pi_reload_config() {
 136         WRITESHORT(PI_CMD_SWITCHCONFIG, PICFG_RELOAD);
 137 }
 138
 139 void pi_load_default_config() {
 140         WRITESHORT(PI_CMD_SWITCHCONFIG, PICFG_DEFAULT);
 141 }
 142
 143 unsigned short pi_handle_config(unsigned char cmd, char *str) {
 144         if (cmd == PICFG_LOAD) {
 145                 WRITELONG(PI_STR1, (unsigned int)str);
 146         }
 147         WRITESHORT(PI_CMD_SWITCHCONFIG, cmd);
 148
 149         RETURN_CMDRES;
 150 }
 151
 152 // Generic stuff
 153 #define SIMPLEWRITE_SHORT(a, b) \
 154     void a(unsigned short val) { WRITESHORT(b, val); }
 155
 156 // Simple feature status write functions
 157 SIMPLEWRITE_SHORT(pi_enable_rtg, PI_CMD_RTGSTATUS);
 158 SIMPLEWRITE_SHORT(pi_enable_net, PI_CMD_NETSTATUS);
 159 SIMPLEWRITE_SHORT(pi_enable_piscsi, PI_CMD_RTGSTATUS);
 160
 161 // Generic feature status setting function.
 162 // Example: pi_set_feature_status(PI_CMD_RTGSTATUS, 1) to enable RTG
 163 //          pi_set_feature_status(PI_CMD_PISCSI_CTRL, PISCSI_CTRL_ENABLE) to enable PiSCSI
 164 void pi_set_feature_status(unsigned short cmd, unsigned char value) {
 165         WRITESHORT(cmd, value);
 166 }
 167
 168 #define SIMPLEREAD_SHORT(a, b) \
 169     unsigned short a() { READSHORT(b, short_val); return short_val; }
 170
 171 // Simple feature status read functions
 172 SIMPLEREAD_SHORT(pi_get_hw_rev, PI_CMD_HWREV);
 173 SIMPLEREAD_SHORT(pi_get_sw_rev, PI_CMD_SWREV);
 174 SIMPLEREAD_SHORT(pi_get_rtg_status, PI_CMD_RTGSTATUS);
 175 SIMPLEREAD_SHORT(pi_get_net_status, PI_CMD_NETSTATUS);
 176 SIMPLEREAD_SHORT(pi_get_piscsi_status, PI_CMD_PISCSI_CTRL);
 177 SIMPLEREAD_SHORT(pi_get_cmd_result, PI_CMDRESULT);