add coolscan-memory-dump

coolscan-updater/.gitignore

@@ -29,7 +29,7 @@
 *.dylib
 
 # Executables
-*.exe
+#*.exe
 *.out
 *.app
 *.i*86

coolscan-updater/CMakeLists.txt

@@ -4,3 +4,4 @@ project(coolscan_updater C)
 set(CMAKE_C_STANDARD 99)
 
 add_executable(coolscan-updater src/coolscan-updater.c src/coolscan_transport_winapi_usb.c src/coolscan_buffer.c src/coolscan_command.c src/coolscan_updatefile.c)
+add_executable(coolscan-memory-dump src/coolscan-memory-dump.c src/coolscan_transport_winapi_usb.c src/coolscan_buffer.c src/coolscan_command.c)

coolscan-updater/src/coolscan-memory-dump.c

@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <unistd.h>
+#include <conio.h>
+
+#include "coolscan_command.h"
+#include "coolscan_transport.h"
+#include "coolscan_updatefile.h"
+
+void press_any_key_to_continue(void)
+{
+    printf("Press any key to continue...\n");
+    _getch();
+}
+
+int main() {
+    atexit(press_any_key_to_continue);
+
+    printf("***************************************\n");
+    printf("* Nikon Memory Dumper by Kosma Moczek *\n");
+    printf("***************************************\n");
+
+    coolscan_connection scanner = coolscan_scanner_open();
+    const char *model = coolscan_scanner_get_model(scanner);
+
+    printf("Checking scanner...\n");
+    printf("...scanner says it's a %s\n", coolscan_command_inquiry(scanner));
+
+    const size_t memory_dump_addr = 0xFFFFC0;
+    const size_t memory_dump_last = 0xFFFFDF;
+    const size_t memory_dump_size = memory_dump_last - memory_dump_addr + 1;
+    struct coolscan_buffer memory_dump_buffer = {
+        .length = memory_dump_size,
+        .data = malloc(memory_dump_size),
+    };
+    printf("Reading memory at 0x%06x to 0x%06x...\n", memory_dump_addr, memory_dump_last);
+    coolscan_command_read_buffer(scanner, 2, 0, memory_dump_addr, &memory_dump_buffer);
+    coolscan_buffer_dump_long("I/O Registers", &memory_dump_buffer);
+
+    coolscan_scanner_close(scanner);
+    printf("Finished.\n");
+
+    return 0;
+}

coolscan-updater/src/coolscan_buffer.c

@@ -3,12 +3,32 @@
 #include <stdio.h>
 
 
+#define COLUMN_SIZE 8
+
+
 void coolscan_buffer_dump(const char *label, const struct coolscan_buffer *buffer) {
     printf("%s:", label);
 
     for (int i=0; i<buffer->length; i++) {
         printf(" %02x", buffer->data[i]);
     }
 
+    printf("\n");
+}
+
+void coolscan_buffer_dump_long(const char *label, const struct coolscan_buffer *buffer)
+{
+    printf("%s:\n", label);
+
+    for (int i=0; i<buffer->length; i++) {
+        if ((i % COLUMN_SIZE) == 0) {
+            printf("%04x:", i);
+        }
+        printf(" %02x", buffer->data[i]);
+        if (((i+1) % COLUMN_SIZE) == 0) {
+            printf("\n");
+        }
+    }
+
     printf("\n");
 }

coolscan-updater/src/coolscan_buffer.h

@@ -15,4 +15,6 @@ struct coolscan_buffer
 
 void coolscan_buffer_dump(const char *label, const struct coolscan_buffer *buffer);
 
+void coolscan_buffer_dump_long(const char *label, const struct coolscan_buffer *buffer);
+
 #endif // COOLSCAN_UPDATER_COOLSCAN_BUFFER_H

coolscan-updater/src/coolscan_command.c

@@ -104,3 +104,22 @@ void coolscan_command_firmware_update_execute(coolscan_connection scanner)
     };
     coolscan_scanner_exchange(scanner, &cmd, NULL, NULL, NULL);
 }
+
+void coolscan_command_read_buffer(coolscan_connection scanner, uint8_t mode, uint8_t buffer_id, uint32_t address, struct coolscan_buffer *buffer)
+{
+    struct coolscan_buffer cmd = {
+            10, (uint8_t []){
+                    0x3C, // READ BUFFER
+                    mode,
+                    buffer_id,
+                    (address >> 16) & 0xFF,
+                    (address >>  8) & 0xFF,
+                    (address >>  0) & 0xFF,
+                    (buffer->length >> 16) & 0xFF,
+                    (buffer->length >>  8) & 0xFF,
+                    (buffer->length >>  0) & 0xFF,
+                    0x00, // Control
+            },
+    };
+    coolscan_scanner_exchange(scanner, &cmd, NULL, buffer, NULL);
+}

coolscan-updater/src/coolscan_command.h

@@ -34,4 +34,10 @@ void coolscan_command_firmware_update_set(coolscan_connection scanner);
  */
 void coolscan_command_firmware_update_execute(coolscan_connection scanner);
 
+/**
+ * Standard SCSI command to read diagnostic data.
+ * NOTE: This can be dangerous, depending on the exact
+ */
+void coolscan_command_read_buffer(coolscan_connection scanner, uint8_t mode, uint8_t buffer_id, uint32_t address, struct coolscan_buffer *buffer);
+
 #endif // COOLSCAN_UPDATER_COOLSCAN_COMMAND_H