From b00e1b1b62451dbdd9815add0474bcd51469a799 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <[EMAIL REDACTED]>
Date: Mon, 5 Sep 2022 10:01:28 -0700
Subject: [PATCH] Added support for a ShanWan PS2 -> PS3 USB converter to the
HIDAPI driver
---
src/joystick/hidapi/SDL_hidapi_ps3.c | 89 +++++++++++++++++++++++++++-
src/joystick/usb_ids.h | 2 +
2 files changed, 88 insertions(+), 3 deletions(-)
diff --git a/src/joystick/hidapi/SDL_hidapi_ps3.c b/src/joystick/hidapi/SDL_hidapi_ps3.c
index 15ceb96fa1d..be21cbbc978 100644
--- a/src/joystick/hidapi/SDL_hidapi_ps3.c
+++ b/src/joystick/hidapi/SDL_hidapi_ps3.c
@@ -18,9 +18,6 @@
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
-/* This driver supports both simplified reports and the extended input reports enabled by Steam.
- Code and logic contributed by Valve Corporation under the SDL zlib license.
-*/
#include "../../SDL_internal.h"
#ifdef SDL_JOYSTICK_HIDAPI
@@ -109,6 +106,9 @@ HIDAPI_DriverPS3_IsSupportedDevice(SDL_HIDAPI_Device *device, const char *name,
if (vendor_id == USB_VENDOR_SONY && product_id == USB_PRODUCT_SONY_DS3) {
return SDL_TRUE;
}
+ if (vendor_id == USB_VENDOR_SHANWAN && product_id == USB_PRODUCT_SHANWAN_DS3) {
+ return SDL_TRUE;
+ }
return SDL_FALSE;
}
@@ -323,6 +323,83 @@ HIDAPI_DriverPS3_ScaleAccel(Sint16 value)
return (float)(value - 511) / 113.0f;
}
+static void
+HIDAPI_DriverPS3_HandleMiniStatePacket(SDL_Joystick *joystick, SDL_DriverPS3_Context *ctx, Uint8 *data, int size)
+{
+ Sint16 axis;
+
+ if (ctx->last_state[4] != data[4]) {
+ SDL_bool dpad_up = SDL_FALSE;
+ SDL_bool dpad_down = SDL_FALSE;
+ SDL_bool dpad_left = SDL_FALSE;
+ SDL_bool dpad_right = SDL_FALSE;
+
+ switch (data[4] & 0x0f) {
+ case 0:
+ dpad_up = SDL_TRUE;
+ break;
+ case 1:
+ dpad_up = SDL_TRUE;
+ dpad_right = SDL_TRUE;
+ break;
+ case 2:
+ dpad_right = SDL_TRUE;
+ break;
+ case 3:
+ dpad_right = SDL_TRUE;
+ dpad_down = SDL_TRUE;
+ break;
+ case 4:
+ dpad_down = SDL_TRUE;
+ break;
+ case 5:
+ dpad_left = SDL_TRUE;
+ dpad_down = SDL_TRUE;
+ break;
+ case 6:
+ dpad_left = SDL_TRUE;
+ break;
+ case 7:
+ dpad_up = SDL_TRUE;
+ dpad_left = SDL_TRUE;
+ break;
+ default:
+ break;
+ }
+ SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_DOWN, dpad_down);
+ SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_UP, dpad_up);
+ SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_RIGHT, dpad_right);
+ SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_DPAD_LEFT, dpad_left);
+
+ SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_Y, (data[4] & 0x10) ? SDL_PRESSED : SDL_RELEASED);
+ SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_B, (data[4] & 0x20) ? SDL_PRESSED : SDL_RELEASED);
+ SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_A, (data[4] & 0x40) ? SDL_PRESSED : SDL_RELEASED);
+ SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_X, (data[4] & 0x80) ? SDL_PRESSED : SDL_RELEASED);
+ }
+
+ if (ctx->last_state[5] != data[5]) {
+ SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_LEFTSHOULDER, (data[5] & 0x01) ? SDL_PRESSED : SDL_RELEASED);
+ SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_RIGHTSHOULDER, (data[5] & 0x02) ? SDL_PRESSED : SDL_RELEASED);
+ SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_TRIGGERLEFT, (data[5] & 0x04) ? SDL_JOYSTICK_AXIS_MAX : SDL_JOYSTICK_AXIS_MIN);
+ SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_TRIGGERRIGHT, (data[5] & 0x08) ? SDL_JOYSTICK_AXIS_MAX : SDL_JOYSTICK_AXIS_MIN);
+ SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_BACK, (data[5] & 0x10) ? SDL_PRESSED : SDL_RELEASED);
+ SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_START, (data[5] & 0x20) ? SDL_PRESSED : SDL_RELEASED);
+ SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_LEFTSTICK, (data[5] & 0x40) ? SDL_PRESSED : SDL_RELEASED);
+ SDL_PrivateJoystickButton(joystick, SDL_CONTROLLER_BUTTON_RIGHTSTICK, (data[5] & 0x80) ? SDL_PRESSED : SDL_RELEASED);
+ }
+
+ axis = ((int)data[2] * 257) - 32768;
+ SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_LEFTX, axis);
+ axis = ((int)data[3] * 257) - 32768;
+ SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_LEFTY, axis);
+ axis = ((int)data[0] * 257) - 32768;
+ SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_RIGHTX, axis);
+ axis = ((int)data[1] * 257) - 32768;
+ SDL_PrivateJoystickAxis(joystick, SDL_CONTROLLER_AXIS_RIGHTY, axis);
+
+ SDL_memcpy(ctx->last_state, data, SDL_min(size, sizeof(ctx->last_state)));
+}
+
static void
HIDAPI_DriverPS3_HandleStatePacket(SDL_Joystick *joystick, SDL_DriverPS3_Context *ctx, Uint8 *data, int size)
{
@@ -431,6 +508,12 @@ HIDAPI_DriverPS3_UpdateDevice(SDL_HIDAPI_Device *device)
HIDAPI_DumpPacket("PS3 packet: size = %d", data, size);
#endif
+ if (size == 7) {
+ /* Seen on a ShanWan PS2 -> PS3 USB converter */
+ HIDAPI_DriverPS3_HandleMiniStatePacket(joystick, ctx, data, size);
+ continue;
+ }
+
switch (data[0]) {
case k_EPS3ReportIdState:
if (data[1] == 0xFF) {
diff --git a/src/joystick/usb_ids.h b/src/joystick/usb_ids.h
index 94fe777cd45..b650c2e1f5c 100644
--- a/src/joystick/usb_ids.h
+++ b/src/joystick/usb_ids.h
@@ -37,6 +37,7 @@
#define USB_VENDOR_POWERA 0x24c6
#define USB_VENDOR_POWERA_ALT 0x20d6
#define USB_VENDOR_RAZER 0x1532
+#define USB_VENDOR_SHANWAN 0x2563
#define USB_VENDOR_SHENZHEN 0x0079
#define USB_VENDOR_SONY 0x054c
#define USB_VENDOR_VALVE 0x28de
@@ -62,6 +63,7 @@
#define USB_PRODUCT_RAZER_PANTHERA 0x0401
#define USB_PRODUCT_RAZER_PANTHERA_EVO 0x1008
#define USB_PRODUCT_RAZER_ATROX 0x0a00
+#define USB_PRODUCT_SHANWAN_DS3 0x0523
#define USB_PRODUCT_SONY_DS3 0x0268
#define USB_PRODUCT_SONY_DS4 0x05c4
#define USB_PRODUCT_SONY_DS4_DONGLE 0x0ba0