548 lines
No EOL
29 KiB
C
548 lines
No EOL
29 KiB
C
#include "virt_ds4.h"
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#include <linux/uhid.h>
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#include <fcntl.h>
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#include <poll.h>
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static const char* path = "/dev/dualshock4";
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static unsigned char rdesc[] = {
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0x05, 0x01, /* Usage Page (Desktop), */
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0x09, 0x05, /* Usage (Gamepad), */
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0xA1, 0x01, /* Collection (Application), */
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0x85, 0x01, /* Report ID (1), */
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0x09, 0x30, /* Usage (X), */
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0x09, 0x31, /* Usage (Y), */
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0x09, 0x32, /* Usage (Z), */
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0x09, 0x35, /* Usage (Rz), */
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0x15, 0x00, /* Logical Minimum (0), */
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0x26, 0xFF, 0x00, /* Logical Maximum (255), */
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0x75, 0x08, /* Report Size (8), */
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0x95, 0x04, /* Report Count (4), */
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0x81, 0x02, /* Input (Variable), */
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0x09, 0x39, /* Usage (Hat Switch), */
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0x15, 0x00, /* Logical Minimum (0), */
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0x25, 0x07, /* Logical Maximum (7), */
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0x35, 0x00, /* Physical Minimum (0), */
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0x46, 0x3B, 0x01, /* Physical Maximum (315), */
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0x65, 0x14, /* Unit (Degrees), */
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0x75, 0x04, /* Report Size (4), */
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0x95, 0x01, /* Report Count (1), */
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0x81, 0x42, /* Input (Variable, Null State), */
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0x65, 0x00, /* Unit, */
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0x05, 0x09, /* Usage Page (Button), */
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0x19, 0x01, /* Usage Minimum (01h), */
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0x29, 0x0E, /* Usage Maximum (0Eh), */
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0x15, 0x00, /* Logical Minimum (0), */
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0x25, 0x01, /* Logical Maximum (1), */
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0x75, 0x01, /* Report Size (1), */
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0x95, 0x0E, /* Report Count (14), */
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0x81, 0x02, /* Input (Variable), */
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0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
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0x09, 0x20, /* Usage (20h), */
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0x75, 0x06, /* Report Size (6), */
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0x95, 0x01, /* Report Count (1), */
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0x15, 0x00, /* Logical Minimum (0), */
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0x25, 0x3F, /* Logical Maximum (63), */
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0x81, 0x02, /* Input (Variable), */
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0x05, 0x01, /* Usage Page (Desktop), */
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0x09, 0x33, /* Usage (Rx), */
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0x09, 0x34, /* Usage (Ry), */
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0x15, 0x00, /* Logical Minimum (0), */
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0x26, 0xFF, 0x00, /* Logical Maximum (255), */
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0x75, 0x08, /* Report Size (8), */
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0x95, 0x02, /* Report Count (2), */
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0x81, 0x02, /* Input (Variable), */
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0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
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0x09, 0x21, /* Usage (21h), */
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0x95, 0x03, /* Report Count (3), */
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0x81, 0x02, /* Input (Variable), */
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0x05, 0x01, /* Usage Page (Desktop), */
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0x19, 0x40, /* Usage Minimum (40h), */
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0x29, 0x42, /* Usage Maximum (42h), */
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0x16, 0x00, 0x80, /* Logical Minimum (-32768), */
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0x26, 0x00, 0x7F, /* Logical Maximum (32767), */
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0x75, 0x10, /* Report Size (16), */
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0x95, 0x03, /* Report Count (3), */
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0x81, 0x02, /* Input (Variable), */
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0x19, 0x43, /* Usage Minimum (43h), */
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0x29, 0x45, /* Usage Maximum (45h), */
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0x16, 0x00, 0xE0, /* Logical Minimum (-8192), */
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0x26, 0xFF, 0x1F, /* Logical Maximum (8191), */
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0x95, 0x03, /* Report Count (3), */
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0x81, 0x02, /* Input (Variable), */
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0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
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0x09, 0x21, /* Usage (21h), */
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0x15, 0x00, /* Logical Minimum (0), */
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0x26, 0xFF, 0x00, /* Logical Maximum (255), */
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0x75, 0x08, /* Report Size (8), */
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0x95, 0x27, /* Report Count (39), */
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0x81, 0x02, /* Input (Variable), */
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0x85, 0x05, /* Report ID (5), */
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0x09, 0x22, /* Usage (22h), */
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0x95, 0x1F, /* Report Count (31), */
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0x91, 0x02, /* Output (Variable), */
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0x85, 0x04, /* Report ID (4), */
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0x09, 0x23, /* Usage (23h), */
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0x95, 0x24, /* Report Count (36), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x02, /* Report ID (2), */
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0x09, 0x24, /* Usage (24h), */
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0x95, 0x24, /* Report Count (36), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x08, /* Report ID (8), */
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0x09, 0x25, /* Usage (25h), */
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0x95, 0x03, /* Report Count (3), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x10, /* Report ID (16), */
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0x09, 0x26, /* Usage (26h), */
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0x95, 0x04, /* Report Count (4), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x11, /* Report ID (17), */
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0x09, 0x27, /* Usage (27h), */
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0x95, 0x02, /* Report Count (2), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x12, /* Report ID (18), */
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0x06, 0x02, 0xFF, /* Usage Page (FF02h), */
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0x09, 0x21, /* Usage (21h), */
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0x95, 0x0F, /* Report Count (15), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x13, /* Report ID (19), */
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0x09, 0x22, /* Usage (22h), */
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0x95, 0x16, /* Report Count (22), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x14, /* Report ID (20), */
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0x06, 0x05, 0xFF, /* Usage Page (FF05h), */
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0x09, 0x20, /* Usage (20h), */
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0x95, 0x10, /* Report Count (16), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x15, /* Report ID (21), */
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0x09, 0x21, /* Usage (21h), */
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0x95, 0x2C, /* Report Count (44), */
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0xB1, 0x02, /* Feature (Variable), */
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0x06, 0x80, 0xFF, /* Usage Page (FF80h), */
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0x85, 0x80, /* Report ID (128), */
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0x09, 0x20, /* Usage (20h), */
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0x95, 0x06, /* Report Count (6), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x81, /* Report ID (129), */
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0x09, 0x21, /* Usage (21h), */
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0x95, 0x06, /* Report Count (6), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x82, /* Report ID (130), */
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0x09, 0x22, /* Usage (22h), */
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0x95, 0x05, /* Report Count (5), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x83, /* Report ID (131), */
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0x09, 0x23, /* Usage (23h), */
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0x95, 0x01, /* Report Count (1), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x84, /* Report ID (132), */
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0x09, 0x24, /* Usage (24h), */
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0x95, 0x04, /* Report Count (4), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x85, /* Report ID (133), */
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0x09, 0x25, /* Usage (25h), */
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0x95, 0x06, /* Report Count (6), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x86, /* Report ID (134), */
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0x09, 0x26, /* Usage (26h), */
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0x95, 0x06, /* Report Count (6), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x87, /* Report ID (135), */
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0x09, 0x27, /* Usage (27h), */
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0x95, 0x23, /* Report Count (35), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x88, /* Report ID (136), */
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0x09, 0x28, /* Usage (28h), */
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0x95, 0x22, /* Report Count (34), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x89, /* Report ID (137), */
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0x09, 0x29, /* Usage (29h), */
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0x95, 0x02, /* Report Count (2), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x90, /* Report ID (144), */
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0x09, 0x30, /* Usage (30h), */
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0x95, 0x05, /* Report Count (5), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x91, /* Report ID (145), */
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0x09, 0x31, /* Usage (31h), */
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0x95, 0x03, /* Report Count (3), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x92, /* Report ID (146), */
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0x09, 0x32, /* Usage (32h), */
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0x95, 0x03, /* Report Count (3), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0x93, /* Report ID (147), */
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0x09, 0x33, /* Usage (33h), */
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0x95, 0x0C, /* Report Count (12), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xA0, /* Report ID (160), */
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0x09, 0x40, /* Usage (40h), */
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0x95, 0x06, /* Report Count (6), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xA1, /* Report ID (161), */
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0x09, 0x41, /* Usage (41h), */
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0x95, 0x01, /* Report Count (1), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xA2, /* Report ID (162), */
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0x09, 0x42, /* Usage (42h), */
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0x95, 0x01, /* Report Count (1), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xA3, /* Report ID (163), */
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0x09, 0x43, /* Usage (43h), */
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0x95, 0x30, /* Report Count (48), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xA4, /* Report ID (164), */
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0x09, 0x44, /* Usage (44h), */
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0x95, 0x0D, /* Report Count (13), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xA5, /* Report ID (165), */
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0x09, 0x45, /* Usage (45h), */
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0x95, 0x15, /* Report Count (21), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xA6, /* Report ID (166), */
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0x09, 0x46, /* Usage (46h), */
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0x95, 0x15, /* Report Count (21), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xF0, /* Report ID (240), */
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0x09, 0x47, /* Usage (47h), */
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0x95, 0x3F, /* Report Count (63), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xF1, /* Report ID (241), */
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0x09, 0x48, /* Usage (48h), */
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0x95, 0x3F, /* Report Count (63), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xF2, /* Report ID (242), */
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0x09, 0x49, /* Usage (49h), */
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0x95, 0x0F, /* Report Count (15), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xA7, /* Report ID (167), */
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0x09, 0x4A, /* Usage (4Ah), */
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0x95, 0x01, /* Report Count (1), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xA8, /* Report ID (168), */
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0x09, 0x4B, /* Usage (4Bh), */
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0x95, 0x01, /* Report Count (1), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xA9, /* Report ID (169), */
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0x09, 0x4C, /* Usage (4Ch), */
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0x95, 0x08, /* Report Count (8), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xAA, /* Report ID (170), */
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0x09, 0x4E, /* Usage (4Eh), */
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0x95, 0x01, /* Report Count (1), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xAB, /* Report ID (171), */
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0x09, 0x4F, /* Usage (4Fh), */
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0x95, 0x39, /* Report Count (57), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xAC, /* Report ID (172), */
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0x09, 0x50, /* Usage (50h), */
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0x95, 0x39, /* Report Count (57), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xAD, /* Report ID (173), */
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0x09, 0x51, /* Usage (51h), */
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0x95, 0x0B, /* Report Count (11), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xAE, /* Report ID (174), */
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0x09, 0x52, /* Usage (52h), */
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0x95, 0x01, /* Report Count (1), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xAF, /* Report ID (175), */
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0x09, 0x53, /* Usage (53h), */
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0x95, 0x02, /* Report Count (2), */
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0xB1, 0x02, /* Feature (Variable), */
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0x85, 0xB0, /* Report ID (176), */
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0x09, 0x54, /* Usage (54h), */
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0x95, 0x3F, /* Report Count (63), */
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0xB1, 0x02, /* Feature (Variable), */
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0xC0 /* End Collection */
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};
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static int uhid_write(int fd, const struct uhid_event *ev)
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{
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ssize_t ret;
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ret = write(fd, ev, sizeof(*ev));
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if (ret < 0) {
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fprintf(stderr, "Cannot write to uhid: %d\n", (int)ret);
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return -errno;
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} else if (ret != sizeof(*ev)) {
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fprintf(stderr, "Wrong size written to uhid: %zd != %zu\n",
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ret, sizeof(ev));
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return -EFAULT;
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} else {
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return 0;
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}
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}
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static int create(int fd)
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{
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struct uhid_event ev;
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memset(&ev, 0, sizeof(ev));
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ev.type = UHID_CREATE;
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strcpy((char*)ev.u.create.name, "Sony Corp. DualShock 4 [CUH-ZCT2x]");
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ev.u.create.rd_data = rdesc;
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ev.u.create.rd_size = sizeof(rdesc);
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ev.u.create.bus = BUS_USB;
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ev.u.create.vendor = 0x054C;
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ev.u.create.product = 0x09CC;
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ev.u.create.version = 0;
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ev.u.create.country = 0;
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return uhid_write(fd, &ev);
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}
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static void destroy(int fd)
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{
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struct uhid_event ev;
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memset(&ev, 0, sizeof(ev));
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ev.type = UHID_DESTROY;
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uhid_write(fd, &ev);
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}
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/* This parses raw output reports sent by the kernel to the device. A normal
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* uhid program shouldn't do this but instead just forward the raw report.
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* However, for ducomentational purposes, we try to detect LED events here and
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* print debug messages for it. */
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static void handle_output(struct uhid_event *ev)
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{
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/* LED messages are adverised via OUTPUT reports; ignore the rest */
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if (ev->u.output.rtype != UHID_OUTPUT_REPORT) {
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return;
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}
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/* LED reports have length 2 bytes */
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if (ev->u.output.size != 2)
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return;
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/* first byte is report-id which is 0x02 for LEDs in our rdesc */
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if (ev->u.output.data[0] != 0x2)
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return;
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/* print flags payload */
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fprintf(stderr, "LED output report received with flags %x\n",
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ev->u.output.data[1]);
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}
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static int event(int fd)
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{
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struct uhid_event ev;
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ssize_t ret;
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memset(&ev, 0, sizeof(ev));
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ret = read(fd, &ev, sizeof(ev));
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if (ret == 0) {
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fprintf(stderr, "Read HUP on uhid-cdev\n");
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return -EFAULT;
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} else if (ret < 0) {
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fprintf(stderr, "Cannot read uhid-cdev: %d\n", (int)ret);
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return -errno;
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} else if (ret != sizeof(ev)) {
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fprintf(stderr, "Invalid size read from uhid-dev: %zd != %zu\n",
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ret, sizeof(ev));
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return -EFAULT;
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}
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switch (ev.type) {
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case UHID_START:
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fprintf(stderr, "UHID_START from uhid-dev\n");
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break;
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case UHID_STOP:
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fprintf(stderr, "UHID_STOP from uhid-dev\n");
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break;
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case UHID_OPEN:
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fprintf(stderr, "UHID_OPEN from uhid-dev\n");
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break;
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case UHID_CLOSE:
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fprintf(stderr, "UHID_CLOSE from uhid-dev\n");
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break;
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case UHID_OUTPUT:
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fprintf(stderr, "UHID_OUTPUT from uhid-dev\n");
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handle_output(&ev);
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break;
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case UHID_OUTPUT_EV:
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fprintf(stderr, "UHID_OUTPUT_EV from uhid-dev\n");
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break;
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case UHID_GET_REPORT:
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fprintf(stderr, "UHID_GET_REPORT from uhid-dev, report=%d\n", ev.u.get_report.rnum);
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if (ev.u.get_report.rnum == 18) {
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const struct uhid_event mac_addr_response = {
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.type = UHID_GET_REPORT_REPLY,
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.u = {
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.get_report_reply = {
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.size = 16,
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.id = ev.u.get_report.id,
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.err = 0,
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.data = {
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0x12, 0xf2, 0xa5, 0x71, 0x68, 0xaf, 0xdc, 0x08,
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0x25, 0x00, 0x4c, 0x46, 0x49, 0x0e, 0x41, 0x00
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}
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}
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}
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};
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uhid_write(fd, &mac_addr_response);
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} else if (ev.u.get_report.rnum == 0xa3) {
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const struct uhid_event firmware_info_response = {
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.type = UHID_GET_REPORT_REPLY,
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.u = {
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.get_report_reply = {
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.size = 49,
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|
.id = ev.u.get_report.id,
|
|
.err = 0,
|
|
.data = {
|
|
0xa3, 0x53, 0x65, 0x70, 0x20, 0x32, 0x31, 0x20,
|
|
0x32, 0x30, 0x31, 0x38, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x30, 0x34, 0x3a, 0x35, 0x30, 0x3a, 0x35,
|
|
0x31, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x01, 0x0c, 0xb4, 0x01, 0x00, 0x00,
|
|
0x00, 0x0a, 0xa0, 0x10, 0x20, 0x00, 0xa0, 0x02,
|
|
0x00
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
uhid_write(fd, &firmware_info_response);
|
|
} else if (ev.u.get_report.rnum == 0x02) { // dualshock4_get_calibration_data
|
|
const struct uhid_event firmware_info_response = {
|
|
.type = UHID_GET_REPORT_REPLY,
|
|
.u = {
|
|
.get_report_reply = {
|
|
.size = 37,
|
|
.id = ev.u.get_report.id,
|
|
.err = 0,
|
|
.data = {
|
|
0x02, 0xf9, 0xff, 0x09, 0x00, 0xf9, 0xff, 0xfe,
|
|
0x22, 0xf4, 0xdc, 0xbb, 0x22, 0x59, 0xdd, 0x89,
|
|
0x22, 0x68, 0xdd, 0x1c, 0x02, 0x1c, 0x02, 0xd3,
|
|
0x20, 0x07, 0xdf, 0xbf, 0x20, 0xaa, 0xe0, 0xbc,
|
|
0x1e, 0x86, 0xe0, 0x06, 0x00,
|
|
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
uhid_write(fd, &firmware_info_response);
|
|
}
|
|
|
|
|
|
|
|
|
|
break;
|
|
default:
|
|
fprintf(stderr, "Invalid event from uhid-dev: %u\n", ev.type);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static uint8_t get_buttons_byte_by_gs(const gamepad_status_t *const gs) {
|
|
uint8_t res = 0;
|
|
|
|
res |= gs->triangle ? (uint8_t)0b10000000 : (uint8_t)0b000000000;
|
|
res |= gs->circle ? (uint8_t)0b01000000 : (uint8_t)0b000000000;
|
|
res |= gs->cross ? (uint8_t)0b00100000 : (uint8_t)0b000000000;
|
|
res |= gs->square ? (uint8_t)0b00010000 : (uint8_t)0b000000000;
|
|
|
|
return res;
|
|
}
|
|
|
|
static int send_data(int fd, logic_t *const logic, uint8_t counter) {
|
|
gamepad_status_t gs = {};
|
|
const int gs_copy_res = logic_copy_gamepad_status(logic, &gs);
|
|
if (gs_copy_res != 0) {
|
|
fprintf(stderr, "Unable to copy the gamepad status: %d", gs_copy_res);
|
|
return gs_copy_res;
|
|
}
|
|
|
|
/*
|
|
Example data:
|
|
0000 c0 e3 af 02 ac 9c ff ff 43 01 84 08 05 00 2d 00
|
|
0010 93 7b 56 65 00 00 00 00 c2 aa 03 00 00 00 00 00
|
|
0020 40 00 00 00 40 00 00 00 00 00 00 00 00 00 00 00
|
|
0030 04 00 00 00 00 00 00 00 04 02 00 00 00 00 00 00
|
|
// above is useless, just send what is below.
|
|
0040 01 80 7f 80 7e 08 00 5c 00 00 7e d4 06 3b fe 0c
|
|
0050 ff 8c fe 6a 05 4f 15 56 e8 00 00 00 00 00 1b 00
|
|
0060 00 00 00 80 00 00 00 80 00 00 00 00 80 00 00 00
|
|
0070 80 00 00 00 00 80 00 00 00 80 00 00 00 00 80 00
|
|
*/
|
|
|
|
// see https://www.psdevwiki.com/ps4/DS4-USB
|
|
|
|
// [12] battery level
|
|
uint8_t buf[] = {
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
};
|
|
|
|
buf[0] = 0x01; // [00] report ID (0x01)
|
|
buf[1] = gs.joystick_positions[0][0]; // L stick, X axis
|
|
buf[2] = gs.joystick_positions[0][1]; // L stick, Y axis
|
|
buf[3] = gs.joystick_positions[1][0]; // R stick, X axis
|
|
buf[4] = gs.joystick_positions[1][1]; // R stick, Y axis
|
|
buf[5] = get_buttons_byte_by_gs(&gs) | (uint8_t)(gs.dpad);
|
|
//buf[06] = get_buttons_byte_by_gs(&gs) | (uint8_t)(gs.dpad);
|
|
buf[7] = (counter % (uint8_t)64) << ((uint8_t)2);
|
|
buf[8] = gs.l2_trigger;
|
|
buf[9] = gs.r2_trigger;
|
|
buf[10] = 0;
|
|
buf[11] = 0;
|
|
buf[12] = 0x20; // [12] battery level
|
|
buf[13] = gs.gyro_x;
|
|
buf[14] = gs.gyro_y;
|
|
buf[15] = gs.gyro_z;
|
|
buf[16] = gs.accel_x;
|
|
buf[17] = gs.accel_y;
|
|
buf[18] = gs.accel_z;
|
|
|
|
buf[30] = 0x1b; // no headset attached
|
|
|
|
return 0;
|
|
}
|
|
|
|
void *virt_ds4_thread_func(void *ptr) {
|
|
logic_t *const logic = (logic_t*)ptr;
|
|
|
|
fprintf(stderr, "Open uhid-cdev %s\n", path);
|
|
int fd = open(path, O_RDWR | O_CLOEXEC | O_NONBLOCK);
|
|
if (fd < 0) {
|
|
fprintf(stderr, "Cannot open uhid-cdev %s: %d\n", path, fd);
|
|
return NULL;
|
|
}
|
|
|
|
fprintf(stderr, "Create uhid device\n");
|
|
int ret = create(fd);
|
|
if (ret) {
|
|
close(fd);
|
|
return NULL;
|
|
}
|
|
|
|
uint8_t counter = 0;
|
|
|
|
for (;;) {
|
|
if ((logic->flags & LOGIC_FLAGS_VIRT_DS4_ENABLE) != 0) {
|
|
event(fd);
|
|
|
|
const int res = send_data(fd, logic, counter);
|
|
if (res >= 0) {
|
|
++counter;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
destroy(fd);
|
|
|
|
return NULL;
|
|
} |