From 7861a52adf92a083bb2aed4c35f98d8035dce032 Mon Sep 17 00:00:00 2001
From: Xavier Del Campo Romero <xavi92@disroot.org>
Date: Mon, 7 Jul 2025 13:22:53 +0200
Subject: Setup project skeleton

---
 src/drv/ps1/bios/include/drv/ps1/bios.h | 128 ++++++++++++++++++++++++++++++++
 1 file changed, 128 insertions(+)
 create mode 100644 src/drv/ps1/bios/include/drv/ps1/bios.h

(limited to 'src/drv/ps1/bios/include')

diff --git a/src/drv/ps1/bios/include/drv/ps1/bios.h b/src/drv/ps1/bios/include/drv/ps1/bios.h
new file mode 100644
index 0000000..ca53194
--- /dev/null
+++ b/src/drv/ps1/bios/include/drv/ps1/bios.h
@@ -0,0 +1,128 @@
+/*
+ * wnix, a Unix-like operating system for WebAssembly applications.
+ * Copyright (C) 2025  Xavier Del Campo Romero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef PS1_BIOS_H
+#define PS1_BIOS_H
+
+#include <stdint.h>
+#include <setjmp.h>
+
+#if __GNUC__
+#define PRINTF_ATTR __attribute__ ((format (__printf__, 1, 2)))
+#else
+#define PRINTF_ATTR
+#endif
+
+enum
+{
+    CLASS_IRQ0 = (long)0xf0000001,
+    CLASS_GPU,
+    CLASS_CDROM,
+    CLASS_DMA,
+    CLASS_RTC0  = (long)0xf2000000,
+    CLASS_RTC1,
+    CLASS_RTC2,
+    CLASS_VBLANK,
+    CLASS_CONTROLLER = (long)0xf0000008,
+    CLASS_SPU,
+    CLASS_PIO,
+    CLASS_SIO
+};
+
+enum
+{
+    MODE_EXECUTE = 0x1000,
+    MODE_READY = 0x2000
+};
+
+enum
+{
+    SPEC_COUNTER_ZERO = 1,
+    SPEC_INTERRUPTED = 1 << 1,
+    SPEC_EOF = 1 << 2,
+    SPEC_FILE_CLOSED = 1 << 3,
+    SPEC_COMMAND_ACK = 1 << 4,
+    SPEC_COMMAND_COMPLETE = 1 << 5,
+    SPEC_DATA_READY = 1 << 6,
+    SPEC_DATA_END = 1 << 7,
+    SPEC_TIMEOUT = 1 << 8,
+    SPEC_UNKNOWN_CMD = 1 << 9,
+    SPEC_END_READ_BUF = 1 << 10,
+    SPEC_END_WRITE_BUF = 1 << 11,
+    SPEC_GENERAL_INTERRUPT = 1 << 12,
+    SPEC_NEW_DEVICE = 1 << 13,
+    SPEC_SYSCALL = 1 << 14,
+    SPEC_ERROR = 1 << 15,
+    SPEC_WRITE_ERROR,
+    SPEC_DOMAIN_ERROR = 0x301,
+    SPEC_RANGE_RNG
+};
+
+struct CdAsyncSeekL
+{
+    uint8_t minutes, seconds, frames;
+};
+
+union SetMode
+{
+    struct
+    {
+        uint8_t cdda :1, autopause :1, report :1, xa_filter :1, ignore :1,
+            whole_sector :1, xa_adpcm :1, speed :1;
+    } bits;
+
+    uint8_t mask;
+};
+
+struct CdAsyncReadSector_mode
+{
+    union SetMode mode;
+    union
+    {
+        struct
+        {
+            uint8_t reads :1, :7;
+        } bits;
+    } read;
+
+    uint16_t reserved;
+};
+
+int EnterCriticalSection(void);
+void ExitCriticalSection(void);
+void GetConf(uint32_t *events, uint32_t *tcb, void **stacktop);
+void SetConf(uint32_t events, uint32_t tcb, void *stacktop);
+int OpenEvent(int class, int spec, int mode, int (*f)(void));
+int EnableEvent(int event);
+int DisableEvent(int event);
+int CloseEvent(int event);
+int TestEvent(int event);
+int WaitEvent(int event);
+int CdAsyncGetStatus(uint8_t *response);
+int CdAsyncReadSector(unsigned count, void *dst,
+    struct CdAsyncReadSector_mode mode);
+int CdAsyncSeekL(const struct CdAsyncSeekL *seekl);
+int Printf(const char *fmt, ...) PRINTF_ATTR;
+void SetCustomExitFromException(jmp_buf jmp);
+void CdInit(void);
+void CdRemove(void);
+int SaveState(jmp_buf buf);
+void RestoreState(jmp_buf buf, int value);
+void ReturnFromException(void);
+
+#endif
-- 
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