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Input: xpad - decipher xpadone packages with GIP defines 

only renames, no functional changes. Some of the packets we send
seem superfluous now. Unfortunately I dont have the hardware to verify
whether they are.

Signed-off-by: Pavel Rojtberg <rojtberg@gmail.com>
Link: https://lore.kernel.org/r/20220913213133.584979-3-rojtberg@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Pavel Rojtberg 2022-09-27 18:02:05 -07:00 committed by Dmitry Torokhov
parent 90c9978959
commit 677065244a
1 changed files with 69 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

99
drivers/input/joystick/xpad.c
View File

@ -514,13 +514,52 @@ struct xboxone_init_packet {
.len = ARRAY_SIZE(_data), \
}
/*
* starting with xbox one, the game input protocol is used
* magic numbers are taken from
* - https://github.com/xpadneo/gip-dissector/blob/main/src/gip-dissector.lua
* - https://github.com/medusalix/xone/blob/master/bus/protocol.c
*/
#define GIP_CMD_ACK 0x01
#define GIP_CMD_IDENTIFY 0x04
#define GIP_CMD_POWER 0x05
#define GIP_CMD_AUTHENTICATE 0x06
#define GIP_CMD_VIRTUAL_KEY 0x07
#define GIP_CMD_RUMBLE 0x09
#define GIP_CMD_LED 0x0a
#define GIP_CMD_FIRMWARE 0x0c
#define GIP_CMD_INPUT 0x20
#define GIP_SEQ0 0x00
#define GIP_OPT_ACK 0x10
#define GIP_OPT_INTERNAL 0x20
/*
* length of the command payload encoded with
* https://en.wikipedia.org/wiki/LEB128
* which is a no-op for N < 128
*/
#define GIP_PL_LEN(N) (N)
/*
* payload specific defines
*/
#define GIP_PWR_ON 0x00
#define GIP_LED_ON 0x01
#define GIP_MOTOR_R BIT(0)
#define GIP_MOTOR_L BIT(1)
#define GIP_MOTOR_RT BIT(2)
#define GIP_MOTOR_LT BIT(3)
#define GIP_MOTOR_ALL (GIP_MOTOR_R | GIP_MOTOR_L | GIP_MOTOR_RT | GIP_MOTOR_LT)
/*
* This packet is required for all Xbox One pads with 2015
* or later firmware installed (or present from the factory).
*/
static const u8 xboxone_fw2015_init[] = {
0x05, 0x20, 0x00, 0x01, 0x00
static const u8 xboxone_power_on[] = {
GIP_CMD_POWER, GIP_OPT_INTERNAL, GIP_SEQ0, GIP_PL_LEN(1), GIP_PWR_ON
};
/*
@ -530,7 +569,7 @@ static const u8 xboxone_fw2015_init[] = {
* Bluetooth mode.
*/
static const u8 xboxone_s_init[] = {
0x05, 0x20, 0x00, 0x0f, 0x06
GIP_CMD_POWER, GIP_OPT_INTERNAL, GIP_SEQ0, 0x0f, 0x06
};
/*
@ -547,9 +586,9 @@ static const u8 extra_input_packet_init[] = {
* (0x0e6f:0x0165) to finish initialization and for Hori pads
* (0x0f0d:0x0067) to make the analog sticks work.
*/
static const u8 xboxone_hori_init[] = {
0x01, 0x20, 0x00, 0x09, 0x00, 0x04, 0x20, 0x3a,
0x00, 0x00, 0x00, 0x80, 0x00
static const u8 xboxone_hori_ack_id[] = {
GIP_CMD_ACK, GIP_OPT_INTERNAL, GIP_SEQ0, GIP_PL_LEN(9),
0x00, GIP_CMD_IDENTIFY, GIP_OPT_INTERNAL, 0x3a, 0x00, 0x00, 0x00, 0x80, 0x00
};
/*
@ -557,8 +596,8 @@ static const u8 xboxone_hori_init[] = {
* sending input reports. These pads include: (0x0e6f:0x02ab),
* (0x0e6f:0x02a4), (0x0e6f:0x02a6).
*/
static const u8 xboxone_pdp_init1[] = {
0x0a, 0x20, 0x00, 0x03, 0x00, 0x01, 0x14
static const u8 xboxone_pdp_led_on[] = {
GIP_CMD_LED, GIP_OPT_INTERNAL, GIP_SEQ0, GIP_PL_LEN(3), 0x00, GIP_LED_ON, 0x14
};
/*
@ -566,8 +605,8 @@ static const u8 xboxone_pdp_init1[] = {
* sending input reports. These pads include: (0x0e6f:0x02ab),
* (0x0e6f:0x02a4), (0x0e6f:0x02a6).
*/
static const u8 xboxone_pdp_init2[] = {
0x06, 0x20, 0x00, 0x02, 0x01, 0x00
static const u8 xboxone_pdp_auth[] = {
GIP_CMD_AUTHENTICATE, GIP_OPT_INTERNAL, GIP_SEQ0, GIP_PL_LEN(2), 0x01, 0x00
};
/*
@ -575,8 +614,8 @@ static const u8 xboxone_pdp_init2[] = {
* sending input reports. One of those pads is (0x24c6:0x543a).
*/
static const u8 xboxone_rumblebegin_init[] = {
0x09, 0x00, 0x00, 0x09, 0x00, 0x0F, 0x00, 0x00,
0x1D, 0x1D, 0xFF, 0x00, 0x00
GIP_CMD_RUMBLE, 0x00, GIP_SEQ0, GIP_PL_LEN(9),
0x00, GIP_MOTOR_ALL, 0x00, 0x00, 0x1D, 0x1D, 0xFF, 0x00, 0x00
};
/*
@ -586,8 +625,8 @@ static const u8 xboxone_rumblebegin_init[] = {
* spin up to enough speed to actually vibrate the gamepad.
*/
static const u8 xboxone_rumbleend_init[] = {
0x09, 0x00, 0x00, 0x09, 0x00, 0x0F, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00
GIP_CMD_RUMBLE, 0x00, GIP_SEQ0, GIP_PL_LEN(9),
0x00, GIP_MOTOR_ALL, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
/*
@ -597,14 +636,14 @@ static const u8 xboxone_rumbleend_init[] = {
* packet is going to be sent.
*/
static const struct xboxone_init_packet xboxone_init_packets[] = {
XBOXONE_INIT_PKT(0x0e6f, 0x0165, xboxone_hori_init),
XBOXONE_INIT_PKT(0x0f0d, 0x0067, xboxone_hori_init),
XBOXONE_INIT_PKT(0x0000, 0x0000, xboxone_fw2015_init),
XBOXONE_INIT_PKT(0x0e6f, 0x0165, xboxone_hori_ack_id),
XBOXONE_INIT_PKT(0x0f0d, 0x0067, xboxone_hori_ack_id),
XBOXONE_INIT_PKT(0x0000, 0x0000, xboxone_power_on),
XBOXONE_INIT_PKT(0x045e, 0x02ea, xboxone_s_init),
XBOXONE_INIT_PKT(0x045e, 0x0b00, xboxone_s_init),
XBOXONE_INIT_PKT(0x045e, 0x0b00, extra_input_packet_init),
XBOXONE_INIT_PKT(0x0e6f, 0x0000, xboxone_pdp_init1),
XBOXONE_INIT_PKT(0x0e6f, 0x0000, xboxone_pdp_init2),
XBOXONE_INIT_PKT(0x0e6f, 0x0000, xboxone_pdp_led_on),
XBOXONE_INIT_PKT(0x0e6f, 0x0000, xboxone_pdp_auth),
XBOXONE_INIT_PKT(0x24c6, 0x541a, xboxone_rumblebegin_init),
XBOXONE_INIT_PKT(0x24c6, 0x542a, xboxone_rumblebegin_init),
XBOXONE_INIT_PKT(0x24c6, 0x543a, xboxone_rumblebegin_init),
@ -920,19 +959,19 @@ static void xpadone_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char
bool do_sync = false;
/* the xbox button has its own special report */
if (data[0] == 0X07) {
if (data[0] == GIP_CMD_VIRTUAL_KEY) {
/*
* The Xbox One S controller requires these reports to be
* acked otherwise it continues sending them forever and
* won't report further mode button events.
*/
if (data[1] == 0x30)
if (data[1] == (GIP_OPT_ACK | GIP_OPT_INTERNAL))
xpadone_ack_mode_report(xpad, data[2]);
input_report_key(dev, BTN_MODE, data[4] & BIT(0));
do_sync = true;
} else if (data[0] == 0X0C) {
} else if (data[0] == GIP_CMD_FIRMWARE) {
/* Some packet formats force us to use this separate to poll paddle inputs */
if (xpad->packet_type == PKT_XBE2_FW_5_11) {
/* Mute paddles if controller is in a custom profile slot
@ -950,7 +989,7 @@ static void xpadone_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char
do_sync = true;
}
} else if (data[0] == 0X20) { /* The main valid packet type for inputs */
} else if (data[0] == GIP_CMD_INPUT) { /* The main valid packet type for inputs */
/* menu/view buttons */
input_report_key(dev, BTN_START, data[4] & BIT(2));
input_report_key(dev, BTN_SELECT, data[4] & BIT(3));
@ -1363,8 +1402,8 @@ static void xpadone_ack_mode_report(struct usb_xpad *xpad, u8 seq_num)
struct xpad_output_packet *packet =
&xpad->out_packets[XPAD_OUT_CMD_IDX];
static const u8 mode_report_ack[] = {
0x01, 0x20, 0x00, 0x09, 0x00, 0x07, 0x20, 0x02,
0x00, 0x00, 0x00, 0x00, 0x00
GIP_CMD_ACK, GIP_OPT_INTERNAL, GIP_SEQ0, GIP_PL_LEN(9),
0x00, GIP_CMD_VIRTUAL_KEY, GIP_OPT_INTERNAL, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00
};
spin_lock_irqsave(&xpad->odata_lock, flags);
@ -1442,14 +1481,14 @@ static int xpad_play_effect(struct input_dev *dev, void *data, struct ff_effect
break;
case XTYPE_XBOXONE:
packet->data[0] = 0x09; /* activate rumble */
packet->data[0] = GIP_CMD_RUMBLE; /* activate rumble */
packet->data[1] = 0x00;
packet->data[2] = xpad->odata_serial++;
packet->data[3] = 0x09;
packet->data[3] = GIP_PL_LEN(9);
packet->data[4] = 0x00;
packet->data[5] = 0x0F;
packet->data[6] = 0x00;
packet->data[7] = 0x00;
packet->data[5] = GIP_MOTOR_ALL;
packet->data[6] = 0x00; /* left trigger */
packet->data[7] = 0x00; /* right trigger */
packet->data[8] = strong / 512; /* left actuator */
packet->data[9] = weak / 512; /* right actuator */
packet->data[10] = 0xFF; /* on period */