224 lines
8.6 KiB
C
224 lines
8.6 KiB
C
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/*
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* Copyright (c) 2026, sakumisu
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef USB_GAMEPAD_H
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#define USB_GAMEPAD_H
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#include "usb_hid.h"
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/*
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* GAMEPAD BUTTON LAYOUT
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*
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* ____________________________ __
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* / [__L2__] [__R2__] \ |
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* / [__ L1 __] [__ R1 __] \ | Triggers
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* __/________________________________\__ __|
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* / _ \ |
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* / /\ __ (B4) \ |
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* / || __ |A1| __ _ _ \ | Main Pad
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* | <===DP===> |S1| |S2| (B3) -|- (B2)| |
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* \ || ¯¯ ¯¯ _ / |
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* /\ \/ / \ / \ (B1) /\ __|
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* / \________ | LS | ____ | RS | _______/ \ |
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* | / \ \___/ / \ \___/ / \ | | Sticks
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* | / \_____/ \_____/ \ | __|
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* | / L3 R3 \ |
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* \_____/ \_____/
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*
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* |________|______| |______|___________|
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* D-Pad Left Right Face
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* Stick Stick Buttons
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*
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* Extended: A2=Touchpad/Capture A3=Mute L4/R4=Paddles
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*/
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// W3C Gamepad API standard button order
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// Bit position = W3C button index (trivial conversion: 1 << index)
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//
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// Gamepad XInput Switch PS3/4/5 DInput
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// ------ ------ ------ ------- ------
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// Face buttons (right cluster)
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#define USB_GAMEPAD_BUTTON_B1 (1 << 0) // A B Cross 2
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#define USB_GAMEPAD_BUTTON_B2 (1 << 1) // B A Circle 3
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#define USB_GAMEPAD_BUTTON_B3 (1 << 2) // X Y Square 1
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#define USB_GAMEPAD_BUTTON_B4 (1 << 3) // Y X Triangle 4
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// Shoulder buttons
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#define USB_GAMEPAD_BUTTON_L1 (1 << 4) // LB L L1 5
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#define USB_GAMEPAD_BUTTON_R1 (1 << 5) // RB R R1 6
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#define USB_GAMEPAD_BUTTON_L2 (1 << 6) // LT ZL L2 7
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#define USB_GAMEPAD_BUTTON_R2 (1 << 7) // RT ZR R2 8
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// Center cluster
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#define USB_GAMEPAD_BUTTON_S1 (1 << 8) // Back - Select 9
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#define USB_GAMEPAD_BUTTON_S2 (1 << 9) // Start + Start 10
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// Stick clicks
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#define USB_GAMEPAD_BUTTON_L3 (1 << 10) // LS LS L3 11
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#define USB_GAMEPAD_BUTTON_R3 (1 << 11) // RS RS R3 12
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// D-pad
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#define USB_GAMEPAD_BUTTON_DU (1 << 12) // D-Up D-Up D-Up Hat
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#define USB_GAMEPAD_BUTTON_DD (1 << 13) // D-Down D-Down D-Down Hat
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#define USB_GAMEPAD_BUTTON_DL (1 << 14) // D-Left D-Left D-Left Hat
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#define USB_GAMEPAD_BUTTON_DR (1 << 15) // D-Right D-Right D-Right Hat
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// Auxiliary
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#define USB_GAMEPAD_BUTTON_A1 (1 << 16) // Guide Home PS 13
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#define USB_GAMEPAD_BUTTON_A2 (1 << 17) // - Capture Touchpad 14
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#define USB_GAMEPAD_BUTTON_A3 (1 << 18) // - - Mute -
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#define USB_GAMEPAD_BUTTON_A4 (1 << 19) // - - - -
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// Paddles (extended)
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#define USB_GAMEPAD_BUTTON_L4 (1 << 20) // P1 - - -
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#define USB_GAMEPAD_BUTTON_R4 (1 << 21) // P2 - - -
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#define XINPUT_VID 0x045E // Microsoft
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#define XINPUT_PID 0x028E // Xbox 360 Controller
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#define XINPUT_BCD_DEVICE 0x0114 // v1.14
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/* XInput (Xbox 360) USB */
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// XInput Interface Class/Subclass/Protocol
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#define XINPUT_INTERFACE_CLASS 0xFF
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#define XINPUT_INTERFACE_SUBCLASS 0x5D
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#define XINPUT_INTERFACE_PROTOCOL 0x01
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#define XINPUT_BUTTON_MASK_UP (1U << 0)
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#define XINPUT_BUTTON_MASK_DOWN (1U << 1)
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#define XINPUT_BUTTON_MASK_LEFT (1U << 2)
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#define XINPUT_BUTTON_MASK_RIGHT (1U << 3)
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#define XINPUT_BUTTON_MASK_START (1U << 4)
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#define XINPUT_BUTTON_MASK_BACK (1U << 5)
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#define XINPUT_BUTTON_MASK_L3 (1U << 6)
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#define XINPUT_BUTTON_MASK_R3 (1U << 7)
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#define XINPUT_BUTTON_MASK_LB (1U << 8)
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#define XINPUT_BUTTON_MASK_RB (1U << 9)
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#define XINPUT_BUTTON_MASK_GUIDE (1U << 10)
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//#define XINPUT_BUTTON_MASK_UNUSED (1U << 11)
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#define XINPUT_BUTTON_MASK_A (1U << 12)
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#define XINPUT_BUTTON_MASK_B (1U << 13)
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#define XINPUT_BUTTON_MASK_X (1U << 14)
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#define XINPUT_BUTTON_MASK_Y (1U << 15)
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// LED patterns for report_id 0x01
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#define XINPUT_LED_OFF 0x00
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#define XINPUT_LED_BLINK 0x01
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#define XINPUT_LED_FLASH_1 0x02
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#define XINPUT_LED_FLASH_2 0x03
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#define XINPUT_LED_FLASH_3 0x04
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#define XINPUT_LED_FLASH_4 0x05
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#define XINPUT_LED_ON_1 0x06
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#define XINPUT_LED_ON_2 0x07
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#define XINPUT_LED_ON_3 0x08
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#define XINPUT_LED_ON_4 0x09
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#define XINPUT_LED_ROTATE 0x0A
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#define XINPUT_LED_BLINK_SLOW 0x0B
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#define XINPUT_LED_BLINK_SLOW_1 0x0C
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#define XINPUT_LED_BLINK_SLOW_2 0x0D
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struct xinput_in_report {
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uint8_t report_id; /* Always 0x00 */
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uint8_t report_size; /* Always 0x14 (20) */
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uint16_t buttons; /* DPAD, Start, Back, L3, R3, LB, RB, Guide, A, B, X, Y */
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uint8_t lt; /* Left trigger (0-255) */
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uint8_t rt; /* Right trigger (0-255) */
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int16_t lx; /* Left stick X (-32768 to 32767) */
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int16_t ly; /* Left stick Y (-32768 to 32767) */
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int16_t rx; /* Right stick X (-32768 to 32767) */
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int16_t ry; /* Right stick Y (-32768 to 32767) */
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uint8_t reserved[6]; /* Reserved/padding */
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} __PACKED;
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struct xinput_out_report {
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uint8_t report_id; // 0x00 = rumble, 0x01 = LED
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uint8_t report_size; // 0x08
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uint8_t led; // LED pattern (0x00 for rumble)
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uint8_t rumble_l; // Left motor (large, 0-255)
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uint8_t rumble_r; // Right motor (small, 0-255)
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uint8_t reserved[3]; // Padding
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} __PACKED;
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// clang-format off
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#define XINPUT_DESCRIPTOR_LEN (9 + 16 + 7 + 7)
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#define XINPUT_DESCRIPTOR_INIT(bInterfaceNumber, out_ep, in_ep) \
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USB_INTERFACE_DESCRIPTOR_INIT(bInterfaceNumber, 0x00, 0x02, 0xff, 0x5d, 0x01, 0x00), /* XInput proprietary descriptor (0x21) */ \
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16, 0x21, 0x00, 0x01, 0x01, 0x24, in_ep, 0x14, 0x03, 0x00, 0x03, 0x13, out_ep, 0x00, 0x03, 0x00, \
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USB_ENDPOINT_DESCRIPTOR_INIT(in_ep, 0x03, 32, 0x01), \
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USB_ENDPOINT_DESCRIPTOR_INIT(out_ep, 0x03, 32, 0x08)
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// clang-format on
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#define SWITCH_VID 0x0F0D // 0x057E Nintendo Pro Controller
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#define SWITCH_PID 0x0092 // 0x2009
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#define SWITCH_BCD_DEVICE 0x0100 // v1.00
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// Button masks (16-bit)
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#define SWITCH_MASK_Y (1U << 0)
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#define SWITCH_MASK_B (1U << 1)
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#define SWITCH_MASK_A (1U << 2)
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#define SWITCH_MASK_X (1U << 3)
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#define SWITCH_MASK_L (1U << 4)
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#define SWITCH_MASK_R (1U << 5)
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#define SWITCH_MASK_ZL (1U << 6)
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#define SWITCH_MASK_ZR (1U << 7)
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#define SWITCH_MASK_MINUS (1U << 8)
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#define SWITCH_MASK_PLUS (1U << 9)
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#define SWITCH_MASK_L3 (1U << 10)
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#define SWITCH_MASK_R3 (1U << 11)
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#define SWITCH_MASK_HOME (1U << 12)
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#define SWITCH_MASK_CAPTURE (1U << 13)
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// D-pad / Hat switch values
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#define SWITCH_HAT_UP 0x00
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#define SWITCH_HAT_UP_RIGHT 0x01
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#define SWITCH_HAT_RIGHT 0x02
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#define SWITCH_HAT_DOWN_RIGHT 0x03
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#define SWITCH_HAT_DOWN 0x04
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#define SWITCH_HAT_DOWN_LEFT 0x05
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#define SWITCH_HAT_LEFT 0x06
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#define SWITCH_HAT_UP_LEFT 0x07
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#define SWITCH_HAT_CENTER 0x08
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// Analog stick range
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#define SWITCH_JOYSTICK_MIN 0x00
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#define SWITCH_JOYSTICK_MID 0x80
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#define SWITCH_JOYSTICK_MAX 0xFF
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struct switch_in_report {
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uint16_t buttons; // 16 button bits
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uint8_t hat; // D-pad (hat switch, 0-8)
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uint8_t lx; // Left stick X (0-255, 128 = center)
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uint8_t ly; // Left stick Y (0-255, 128 = center)
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uint8_t rx; // Right stick X (0-255, 128 = center)
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uint8_t ry; // Right stick Y (0-255, 128 = center)
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uint8_t vendor; // Vendor-specific byte
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} __PACKED;
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struct switch_out_report {
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uint8_t data[8]; // Vendor-specific rumble data
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} __PACKED;
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#define HID_SWITCH_REPORT_DESC_SIZE 86
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// clang-format off
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#define SWITCH_DESCRIPTOR_LEN HID_CUSTOM_INOUT_DESCRIPTOR_LEN
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#define SWITCH_DESCRIPTOR_INIT(bInterfaceNumber, out_ep, in_ep) \
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HID_CUSTOM_INOUT_DESCRIPTOR_INIT(bInterfaceNumber, 0x00, HID_SWITCH_REPORT_DESC_SIZE, out_ep, in_ep, 64, 0x01)
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// clang-format on
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struct usb_gamepad_report {
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uint32_t buttons;
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uint8_t lt;
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uint8_t rt;
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uint8_t lx;
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uint8_t ly;
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uint8_t rx;
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uint8_t ry;
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};
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#endif /* USB_GAMEPAD_H */
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