Add project source code

2 files changed, 61 insertions, 0 deletions

diff --git a/src/pad/ps1/inc/pad/port.h b/src/pad/ps1/inc/pad/port.h
new file mode 100644
index 0000000..14dc784
--- /dev/null
+++ b/src/pad/ps1/inc/pad/port.h
@@ -0,0 +1,20 @@
+#ifndef PAD_PS1_H
+#define PAD_PS1_H
+
+#include <psx.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+struct pad_port
+{
+    psx_pad_state pps;
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* PAD_PS1_H */
diff --git a/src/pad/ps1/src/pad.c b/src/pad/ps1/src/pad.c
new file mode 100644
index 0000000..eea56ed
--- /dev/null
+++ b/src/pad/ps1/src/pad.c
@@ -0,0 +1,41 @@
+#include <pad.h>
+#include <pad_private.h>
+#include <pad/port.h>
+#include <stddef.h>
+#include <string.h>
+
+void pad_init(const int player, struct pad *const p)
+{
+    memset(p, 0, sizeof *p);
+    p->player = player;
+}
+
+void pad_port_update(struct pad *const p)
+{
+    static const int psx_keys[] =
+    {
+        [PAD_KEY_LEFT] = PAD_LEFT,
+        [PAD_KEY_RIGHT] = PAD_RIGHT,
+        [PAD_KEY_UP] = PAD_UP,
+        [PAD_KEY_DOWN] = PAD_DOWN,
+        [PAD_KEY_A] = PAD_CROSS,
+        [PAD_KEY_B] = PAD_CIRCLE,
+        [PAD_KEY_C] = PAD_TRIANGLE,
+        [PAD_KEY_D] = PAD_SQUARE,
+        [PAD_KEY_E] = PAD_L1,
+        [PAD_KEY_OPTIONS] = PAD_START
+    };
+
+    p->mask = 0;
+    PSX_PollPad(p->player, &p->port.pps);
+
+    for (size_t i = 0; i < sizeof psx_keys / sizeof *psx_keys; i++)
+    {
+        const int mask = 1 << i;
+
+        if (p->port.pps.buttons & psx_keys[i])
+            p->mask |= mask;
+        else
+            p->mask &= ~mask;
+    }
+}