wiptty

3 files changed, 225 insertions, 0 deletions

diff --git a/src/drv/ps1/cd/private_include/drv/ps1/cd/regs.h b/src/drv/ps1/cd/private_include/drv/ps1/cd/regs.h
new file mode 100644
index 0000000..7d15f39
--- /dev/null
+++ b/src/drv/ps1/cd/private_include/drv/ps1/cd/regs.h
@@ -0,0 +1,66 @@
+/*
+ * wanix, 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 DRV_PS1_CD_REGS_H
+#define DRV_PS1_CD_REGS_H
+
+#include <stdint.h>
+
+struct cd_reg_status
+{
+    uint8_t index :2;
+    const uint8_t ADPBUSY :1, PRMEMPT :1, PRMWRDY :1, RSLRRDY :1, DRQSTS :1,
+        BUSYSTS :1;
+};
+
+struct cd_reg_cmd
+{
+    uint8_t cmd;
+};
+
+struct cd_reg_rsp
+{
+    uint8_t rsp;
+};
+
+struct cd_reg_param
+{
+    uint8_t param;
+};
+
+union cd_reg_if
+{
+    const struct
+    {
+        uint8_t response :3, :1, cmd_start :1, :3;
+    } r;
+
+    struct
+    {
+        uint8_t ack: 5, :1, CLRPRM :1, :1;
+    } w;
+};
+
+#define CD_REG(x) (0x1f801800 + (x))
+#define CD_REG_STATUS ((volatile struct cd_reg_status *)CD_REG(0))
+#define CD_REG_CMD ((volatile struct cd_reg_cmd *)CD_REG(1))
+#define CD_REG_RSP ((const volatile struct cd_reg_rsp *)CD_REG(1))
+#define CD_REG_PARAM ((volatile struct cd_reg_param *)CD_REG(2))
+#define CD_REG_IF ((volatile union cd_reg_if *)CD_REG(3))
+
+#endif
diff --git a/src/drv/ps1/cd/private_include/drv/ps1/cd/routines.h b/src/drv/ps1/cd/private_include/drv/ps1/cd/routines.h
new file mode 100644
index 0000000..0fce7dd
--- /dev/null
+++ b/src/drv/ps1/cd/private_include/drv/ps1/cd/routines.h
@@ -0,0 +1,37 @@
+/*
+ * wanix, 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 DRV_PS1_CD_ROUTINES_H
+#define DRV_PS1_CD_ROUTINES_H
+
+#include <drv/ps1/cd/types.h>
+#include <drv/ps1/bios.h>
+#include <stddef.h>
+
+int drv_ps1_cd_send(const struct cmd *cmd);
+int drv_ps1_cd_getstat(void);
+int drv_ps1_cd_read(void *buf, size_t n, const struct drv_event_done *done,
+    void *args);
+int drv_ps1_cd_seek(long offset, const struct drv_event_done *done,
+    void *args);
+int drv_ps1_cd_write(const void *buf, size_t n,
+    const struct drv_event_done *done, void *args);
+int drv_ps1_cd_next(void);
+struct CdAsyncSeekL drv_ps1_cd_toseekl(unsigned i);
+
+#endif
diff --git a/src/drv/ps1/cd/private_include/drv/ps1/cd/types.h b/src/drv/ps1/cd/private_include/drv/ps1/cd/types.h
new file mode 100644
index 0000000..4446305
--- /dev/null
+++ b/src/drv/ps1/cd/private_include/drv/ps1/cd/types.h
@@ -0,0 +1,122 @@
+/*
+ * wanix, 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 DRV_PS1_CD_TYPES_H
+#define DRV_PS1_CD_TYPES_H
+
+#include <drv/event.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+struct drv_ps1_cd
+{
+    bool available;
+    struct drv_event ev;
+};
+
+struct cmd
+{
+    enum
+    {
+        CMD_SYNC,
+        CMD_GETSTAT,
+        CMD_SETLOC,
+    } cmd;
+
+    union cmd_param
+    {
+        struct cmd_setloc
+        {
+            uint8_t min, sec, sect;
+        } setloc;
+    } params;
+};
+
+struct cd_prv_getstat
+{
+    int event;
+
+    union
+    {
+        struct
+        {
+            uint8_t invalid :1, motor :1, seek_error :1, id_error :1,
+                shell_open :1, reading :1, seeking :1, playing_cdda :1;
+        } bits;
+
+        uint8_t byte;
+    } status;
+};
+
+struct cd_prv_read
+{
+    int event, endevent, errevent;
+};
+
+struct cd_prv_seek
+{
+    int event, errevent;
+};
+
+struct cd_req_read
+{
+    void *buf;
+    size_t n;
+};
+
+struct cd_req_seek
+{
+    long offset;
+};
+
+struct cd_req
+{
+    union
+    {
+        struct cd_req_read read;
+        struct cd_req_seek seek;
+    } u;
+
+    int (*f)(void);
+    struct drv_event_done done;
+    struct cd_req *next;
+};
+
+enum {CD_SECTOR_SZ = 2048};
+
+struct cd_prv
+{
+    bool available, has_cache;
+    int (*next)(void);
+    struct cmd cmd;
+    struct cd_req *head, *tail;
+    char sector[CD_SECTOR_SZ];
+    unsigned offset;
+
+    union
+    {
+        struct cd_prv_getstat getstat;
+        struct cd_prv_read read;
+        struct cd_prv_seek seek;
+    } u;
+};
+
+extern struct cd_prv drv_ps1_cd_prv;
+
+#endif