Implement READ ATIP command.

src/cdrom/cdrom.c

@@ -2164,6 +2164,50 @@ cdrom_read_pma(const cdrom_t *dev, uint8_t *b, const int max_len)
     return 4;
 }
 
+int
+cdrom_read_atip(const cdrom_t *dev, uint8_t *b, const int max_len)
+{
+    if (max_len < 28)
+        return -1;
+
+    b[ 0] = 0x00; /* ATIP Data Length (MSB) */
+    b[ 1] = 0x1a; /* ATIP Data Length (LSB) */
+    b[ 2] = 0x00; /* Reserved */
+    b[ 3] = 0x00; /* Reserved */
+    // Special Information 1
+    b[ 4] = 0xd0; /* Indicative Target Writing Power, Reference Speed */
+    b[ 5] = 0x00; /* URU */
+    b[ 6] = 0x98; /* 1, Disc Type, Disc Sub-Type, A1 Valid, A2 Valid, A3 Valid*/
+    b[ 7] = 0x00; /* Reserved*/
+    // Special Information 2
+    b[ 8] = 0x61; /* ATIP Start Time of Lead-in (Min) */
+    b[ 9] = 0x1a; /* ATIP Start Time of Lead-in (Sec) */
+    b[10] = 0x42; /* ATIP Start Time of Lead-in (Frame) */
+    b[11] = 0x00; /* Reserved */
+    // Special Information 3
+    b[12] = 0x4f; /* ATIP Last Possible Start of Lead-out (Min) */
+    b[13] = 0x3b; /* ATIP Last Possible Start of Lead-out (Sec) */
+    b[14] = 0x47; /* ATIP Last Possible Start of Lead-out (Frame) */
+    b[15] = 0x00; /* Reserved */
+    // Additional Information 1
+    b[16] = 0x00; /* A1 Values */
+    b[17] = 0x00; /* A1 Values */
+    b[18] = 0x80; /* A1 Values */
+    b[19] = 0x00; /* Reserved */
+    // Additional Information 2
+    b[20] = 0x00; /* A2 Values */
+    b[21] = 0x80; /* A2 Values */
+    b[22] = 0x00; /* A2 Values */
+    b[23] = 0x00; /* Reserved */
+    // Additional Information 3
+    b[24] = 0x00; /* A3 Values */
+    b[25] = 0x80; /* A3 Values */
+    b[26] = 0x80; /* A3 Values */
+    b[27] = 0x00; /* Reserved */
+
+    return 28;
+}
+
 int
 cdrom_read_toc(const cdrom_t *dev, uint8_t *b, const int type,
                const uint8_t start_track, const int msf, const int max_len)

src/include/86box/cdrom.h

@@ -447,6 +447,7 @@ extern uint8_t         cdrom_get_current_subcodeq_playstatus(cdrom_t *dev, uint8
 extern int             cdrom_read_toc(const cdrom_t *dev, uint8_t *b, const int type,
                                       const uint8_t start_track, const int msf, const int max_len);
 extern int             cdrom_read_pma(const cdrom_t *dev, uint8_t *b, const int max_len);
+extern int             cdrom_read_atip(const cdrom_t *dev, uint8_t *b, const int max_len);
 extern int             cdrom_read_toc_sony(const cdrom_t *dev, uint8_t *b, const uint8_t start_track,
                                            const int msf, const int max_len);
 #ifdef USE_CDROM_MITSUMI

src/scsi/scsi_cdrom.c

@@ -2661,6 +2661,11 @@ scsi_cdrom_command(scsi_common_t *sc, const uint8_t *cdb)
             } else if (toc_format == 3 && dev->drv->cd_status == CD_STATUS_BLANK_CDR) {
                 len = cdrom_read_pma(dev->drv, dev->buffer, max_len);
 
+                scsi_cdrom_set_buf_len(dev, BufLen, &len);
+                scsi_cdrom_data_command_finish(dev, len, len, len, 0);
+            } else if (toc_format == 4 && dev->drv->cd_status == CD_STATUS_BLANK_CDR) {
+                len = cdrom_read_atip(dev->drv, dev->buffer, max_len);
+
                 scsi_cdrom_set_buf_len(dev, BufLen, &len);
                 scsi_cdrom_data_command_finish(dev, len, len, len, 0);
             } else