Added an enable status latch register to query which Disk II enable lines FujiNet sees.

Author: FozzTexx

include/version.h

@@ -7,6 +7,9 @@
  as needed.
 */
 
+#ifndef _VERSION_H
+#define _VERSION_H
+
 #define FN_VERSION_MAJOR 1
 #define FN_VERSION_MINOR 4
 
@@ -15,3 +18,5 @@
 #define FN_VERSION_DATE "2024-08-07 20:49:13"
 
 #define FN_VERSION_FULL "v1.4"
+
+#endif /* _VERSION_H */

lib/bus/iwm/iwm.h

@@ -111,12 +111,14 @@ enum {
 #define IWM_CTRL_RUN_ROUTINE 0x05
 #define IWM_CTRL_DWNLD_ADDRESS 0x06
 #define IWM_CTRL_DOWNLOAD 0x07
+#define IWM_CTRL_CLEAR_ENSEEN 0x08
 
 #define IWM_STATUS_STATUS 0x00
 #define IWM_STATUS_DCB 0x01
 #define IWM_STATUS_NEWLINE 0x02
 #define IWM_STATUS_DIB 0x03
 #define IWM_STATUS_UNI35 0x05
+#define IWM_STATUS_ENSEEN 0x08
 
 // class def'ns
 class iwmFuji;     // declare here so can reference it, but define in fuji.h

lib/bus/iwm/iwm_ll.cpp

@@ -1211,6 +1211,7 @@ uint8_t IRAM_ATTR iwm_diskii_ll::iwm_enable_states()
     return 0;
   }
 
+  d2_enable_seen |= states;
   return states;
 }
 

lib/bus/iwm/iwm_ll.h

@@ -293,6 +293,7 @@ class iwm_diskii_ll : public iwm_ll
 
 public:
   QueueHandle_t iwm_write_queue;
+  uint8_t d2_enable_seen = 0;
 
   // Phase lines and ACK handshaking
   uint8_t iwm_phase_vector() { return (uint8_t)(GPIO.in1.val & (uint32_t)0b1111); };

lib/device/iwm/disk2.h

@@ -7,7 +7,6 @@
 
 class iwmDisk2 : public iwmDisk
 {
-
 protected:
     MediaType *_disk = nullptr;
 

lib/device/iwm/fuji.cpp

@@ -80,6 +80,7 @@ iwmFuji::iwmFuji()
 
         { FUJICMD_RESET,  [this]()                     { this->send_reply_packet(err_result); this->iwm_ctrl_reset_fujinet(); }},   // 0xFF
         { IWM_CTRL_RESET, [this]()                     { this->send_reply_packet(err_result); this->iwm_ctrl_reset_fujinet(); }},   // 0x00
+	{ IWM_CTRL_CLEAR_ENSEEN, [this]()	       { diskii_xface.d2_enable_seen = 0; err_result = SP_ERR_NOERROR; }},
 
         { FUJICMD_MOUNT_ALL, [&]()                     { err_result = (mount_all() ? SP_ERR_IOERROR : SP_ERR_NOERROR); }},          // 0xD7
         { FUJICMD_MOUNT_IMAGE, [&]()                   { err_result = iwm_ctrl_disk_image_mount(); }},  // 0xF8
@@ -91,6 +92,7 @@ iwmFuji::iwmFuji()
 
         { IWM_STATUS_DIB, [this]()                     { this->send_status_dib_reply_packet(); status_completed = true; }},     // 0x03
         { IWM_STATUS_STATUS, [this]()                  { this->send_status_reply_packet(); status_completed = true; }},         // 0x00
+	{ IWM_STATUS_ENSEEN, [this]()		       { data_len = 1; data_buffer[0] = diskii_xface.d2_enable_seen; }},
 
         { FUJICMD_DEVICE_ENABLE_STATUS, [this]()       { this->send_stat_get_enable(); }},                      // 0xD1
         { FUJICMD_GET_ADAPTERCONFIG_EXTENDED, [this]() { this->iwm_stat_get_adapter_config_extended(); }},      // 0xC4