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Message-Id: <20211027101043.31609-2-linkmauve@linkmauve.fr>
Date: Wed, 27 Oct 2021 12:10:39 +0200
From: Emmanuel Gil Peyrot <linkmauve@...kmauve.fr>
To: Jiri Kosina <jikos@...nel.org>
Cc: Emmanuel Gil Peyrot <linkmauve@...kmauve.fr>,
linux-input@...r.kernel.org, Ash Logan <ash@...quark.com>,
Jonathan Neuschäfer <j.ne@...teo.net>,
Barnabás Pőcze <pobrn@...tonmail.com>,
Benjamin Tissoires <benjamin.tissoires@...hat.com>,
linux-kernel@...r.kernel.org,
"Daniel J . Ogorchock" <djogorchock@...il.com>
Subject: [PATCH v5 1/5] HID: nintendo: split switch support into its own file
This allows for other controllers to be supported, which do not require
the same set of features.
Signed-off-by: Emmanuel Gil Peyrot <linkmauve@...kmauve.fr>
---
drivers/hid/Kconfig | 25 +-
drivers/hid/Makefile | 1 +
.../{hid-nintendo.c => hid-nintendo-switch.c} | 43 +-
drivers/hid/hid-nintendo.c | 2287 +----------------
drivers/hid/hid-nintendo.h | 16 +
5 files changed, 65 insertions(+), 2307 deletions(-)
copy drivers/hid/{hid-nintendo.c => hid-nintendo-switch.c} (98%)
create mode 100644 drivers/hid/hid-nintendo.h
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 62d4a6d6ba13..17ed06f5a23c 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -731,18 +731,13 @@ config HID_MULTITOUCH
module will be called hid-multitouch.
config HID_NINTENDO
- tristate "Nintendo Joy-Con and Pro Controller support"
+ tristate "Nintendo controllers support"
depends on HID
- depends on NEW_LEDS
- depends on LEDS_CLASS
- select POWER_SUPPLY
help
- Adds support for the Nintendo Switch Joy-Cons and Pro Controller.
- All controllers support bluetooth, and the Pro Controller also supports
- its USB mode.
+ Adds support for various Nintendo controllers.
- To compile this driver as a module, choose M here: the
- module will be called hid-nintendo.
+ To compile this driver as a module, choose M here: the
+ module will be called hid-nintendo.
config NINTENDO_FF
bool "Nintendo Switch controller force feedback support"
@@ -754,6 +749,18 @@ config NINTENDO_FF
controller. For the pro controller, both rumble motors can be controlled
individually.
+config HID_NINTENDO_SWITCH
+ tristate "Nintendo Wii U gamepad (DRC) over internal DRH"
+ default y
+ depends on HID_NINTENDO
+ depends on NEW_LEDS
+ depends on LEDS_CLASS
+ select POWER_SUPPLY
+ help
+ Adds support for the Nintendo Switch Joy-Cons and Pro Controller.
+ All controllers support bluetooth, and the Pro Controller also supports
+ its USB mode.
+
config HID_NTI
tristate "NTI keyboard adapters"
help
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 7a71371e3adf..a0a9ee182ef2 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -79,6 +79,7 @@ obj-$(CONFIG_HID_MICROSOFT) += hid-microsoft.o
obj-$(CONFIG_HID_MONTEREY) += hid-monterey.o
obj-$(CONFIG_HID_MULTITOUCH) += hid-multitouch.o
obj-$(CONFIG_HID_NINTENDO) += hid-nintendo.o
+obj-$(CONFIG_HID_NINTENDO_SWITCH) += hid-nintendo-switch.o
obj-$(CONFIG_HID_NTI) += hid-nti.o
obj-$(CONFIG_HID_NTRIG) += hid-ntrig.o
obj-$(CONFIG_HID_ORTEK) += hid-ortek.o
diff --git a/drivers/hid/hid-nintendo.c b/drivers/hid/hid-nintendo-switch.c
similarity index 98%
copy from drivers/hid/hid-nintendo.c
copy to drivers/hid/hid-nintendo-switch.c
index c4270499fc6f..b742ed45b601 100644
--- a/drivers/hid/hid-nintendo.c
+++ b/drivers/hid/hid-nintendo-switch.c
@@ -23,6 +23,7 @@
*/
#include "hid-ids.h"
+#include "hid-nintendo.h"
#include <asm/unaligned.h>
#include <linux/delay.h>
#include <linux/device.h>
@@ -31,7 +32,6 @@
#include <linux/input.h>
#include <linux/jiffies.h>
#include <linux/leds.h>
-#include <linux/module.h>
#include <linux/power_supply.h>
#include <linux/spinlock.h>
@@ -412,6 +412,7 @@ static const char * const joycon_player_led_names[] = {
/* Each physical controller is associated with a joycon_ctlr struct */
struct joycon_ctlr {
+ enum nintendo_driver driver;
struct hid_device *hdev;
struct input_dev *input;
struct led_classdev leds[JC_NUM_LEDS]; /* player leds */
@@ -2088,8 +2089,8 @@ static int joycon_ctlr_handle_event(struct joycon_ctlr *ctlr, u8 *data,
return ret;
}
-static int nintendo_hid_event(struct hid_device *hdev,
- struct hid_report *report, u8 *raw_data, int size)
+int switch_hid_event(struct hid_device *hdev,
+ struct hid_report *report, u8 *raw_data, int size)
{
struct joycon_ctlr *ctlr = hid_get_drvdata(hdev);
@@ -2099,8 +2100,8 @@ static int nintendo_hid_event(struct hid_device *hdev,
return joycon_ctlr_handle_event(ctlr, raw_data, size);
}
-static int nintendo_hid_probe(struct hid_device *hdev,
- const struct hid_device_id *id)
+int switch_hid_probe(struct hid_device *hdev,
+ const struct hid_device_id *id)
{
int ret;
struct joycon_ctlr *ctlr;
@@ -2113,6 +2114,7 @@ static int nintendo_hid_probe(struct hid_device *hdev,
goto err;
}
+ ctlr->driver = NINTENDO_SWITCH;
ctlr->hdev = hdev;
ctlr->ctlr_state = JOYCON_CTLR_STATE_INIT;
ctlr->rumble_queue_head = JC_RUMBLE_QUEUE_SIZE - 1;
@@ -2271,7 +2273,7 @@ static int nintendo_hid_probe(struct hid_device *hdev,
return ret;
}
-static void nintendo_hid_remove(struct hid_device *hdev)
+void switch_hid_remove(struct hid_device *hdev)
{
struct joycon_ctlr *ctlr = hid_get_drvdata(hdev);
unsigned long flags;
@@ -2288,32 +2290,3 @@ static void nintendo_hid_remove(struct hid_device *hdev)
hid_hw_close(hdev);
hid_hw_stop(hdev);
}
-
-static const struct hid_device_id nintendo_hid_devices[] = {
- { HID_USB_DEVICE(USB_VENDOR_ID_NINTENDO,
- USB_DEVICE_ID_NINTENDO_PROCON) },
- { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
- USB_DEVICE_ID_NINTENDO_PROCON) },
- { HID_USB_DEVICE(USB_VENDOR_ID_NINTENDO,
- USB_DEVICE_ID_NINTENDO_CHRGGRIP) },
- { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
- USB_DEVICE_ID_NINTENDO_JOYCONL) },
- { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
- USB_DEVICE_ID_NINTENDO_JOYCONR) },
- { }
-};
-MODULE_DEVICE_TABLE(hid, nintendo_hid_devices);
-
-static struct hid_driver nintendo_hid_driver = {
- .name = "nintendo",
- .id_table = nintendo_hid_devices,
- .probe = nintendo_hid_probe,
- .remove = nintendo_hid_remove,
- .raw_event = nintendo_hid_event,
-};
-module_hid_driver(nintendo_hid_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Daniel J. Ogorchock <djogorchock@...il.com>");
-MODULE_DESCRIPTION("Driver for Nintendo Switch Controllers");
-
diff --git a/drivers/hid/hid-nintendo.c b/drivers/hid/hid-nintendo.c
index c4270499fc6f..f16d8d94b1da 100644
--- a/drivers/hid/hid-nintendo.c
+++ b/drivers/hid/hid-nintendo.c
@@ -1,2295 +1,54 @@
// SPDX-License-Identifier: GPL-2.0+
/*
- * HID driver for Nintendo Switch Joy-Cons and Pro Controllers
- *
- * Copyright (c) 2019-2021 Daniel J. Ogorchock <djogorchock@...il.com>
- *
- * The following resources/projects were referenced for this driver:
- * https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering
- * https://gitlab.com/pjranki/joycon-linux-kernel (Peter Rankin)
- * https://github.com/FrotBot/SwitchProConLinuxUSB
- * https://github.com/MTCKC/ProconXInput
- * https://github.com/Davidobot/BetterJoyForCemu
- * hid-wiimote kernel hid driver
- * hid-logitech-hidpp driver
- * hid-sony driver
- *
- * This driver supports the Nintendo Switch Joy-Cons and Pro Controllers. The
- * Pro Controllers can either be used over USB or Bluetooth.
- *
- * The driver will retrieve the factory calibration info from the controllers,
- * so little to no user calibration should be required.
+ * HID driver for Nintendo controllers
*
+ * Copyright (c) 2021 Emmanuel Gil Peyrot <linkmauve@...kmauve.fr>
*/
#include "hid-ids.h"
-#include <asm/unaligned.h>
-#include <linux/delay.h>
+#include "hid-nintendo.h"
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/hid.h>
#include <linux/input.h>
-#include <linux/jiffies.h>
-#include <linux/leds.h>
#include <linux/module.h>
-#include <linux/power_supply.h>
-#include <linux/spinlock.h>
-
-/*
- * Reference the url below for the following HID report defines:
- * https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering
- */
-
-/* Output Reports */
-static const u8 JC_OUTPUT_RUMBLE_AND_SUBCMD = 0x01;
-static const u8 JC_OUTPUT_FW_UPDATE_PKT = 0x03;
-static const u8 JC_OUTPUT_RUMBLE_ONLY = 0x10;
-static const u8 JC_OUTPUT_MCU_DATA = 0x11;
-static const u8 JC_OUTPUT_USB_CMD = 0x80;
-
-/* Subcommand IDs */
-static const u8 JC_SUBCMD_STATE /*= 0x00*/;
-static const u8 JC_SUBCMD_MANUAL_BT_PAIRING = 0x01;
-static const u8 JC_SUBCMD_REQ_DEV_INFO = 0x02;
-static const u8 JC_SUBCMD_SET_REPORT_MODE = 0x03;
-static const u8 JC_SUBCMD_TRIGGERS_ELAPSED = 0x04;
-static const u8 JC_SUBCMD_GET_PAGE_LIST_STATE = 0x05;
-static const u8 JC_SUBCMD_SET_HCI_STATE = 0x06;
-static const u8 JC_SUBCMD_RESET_PAIRING_INFO = 0x07;
-static const u8 JC_SUBCMD_LOW_POWER_MODE = 0x08;
-static const u8 JC_SUBCMD_SPI_FLASH_READ = 0x10;
-static const u8 JC_SUBCMD_SPI_FLASH_WRITE = 0x11;
-static const u8 JC_SUBCMD_RESET_MCU = 0x20;
-static const u8 JC_SUBCMD_SET_MCU_CONFIG = 0x21;
-static const u8 JC_SUBCMD_SET_MCU_STATE = 0x22;
-static const u8 JC_SUBCMD_SET_PLAYER_LIGHTS = 0x30;
-static const u8 JC_SUBCMD_GET_PLAYER_LIGHTS = 0x31;
-static const u8 JC_SUBCMD_SET_HOME_LIGHT = 0x38;
-static const u8 JC_SUBCMD_ENABLE_IMU = 0x40;
-static const u8 JC_SUBCMD_SET_IMU_SENSITIVITY = 0x41;
-static const u8 JC_SUBCMD_WRITE_IMU_REG = 0x42;
-static const u8 JC_SUBCMD_READ_IMU_REG = 0x43;
-static const u8 JC_SUBCMD_ENABLE_VIBRATION = 0x48;
-static const u8 JC_SUBCMD_GET_REGULATED_VOLTAGE = 0x50;
-
-/* Input Reports */
-static const u8 JC_INPUT_BUTTON_EVENT = 0x3F;
-static const u8 JC_INPUT_SUBCMD_REPLY = 0x21;
-static const u8 JC_INPUT_IMU_DATA = 0x30;
-static const u8 JC_INPUT_MCU_DATA = 0x31;
-static const u8 JC_INPUT_USB_RESPONSE = 0x81;
-
-/* Feature Reports */
-static const u8 JC_FEATURE_LAST_SUBCMD = 0x02;
-static const u8 JC_FEATURE_OTA_FW_UPGRADE = 0x70;
-static const u8 JC_FEATURE_SETUP_MEM_READ = 0x71;
-static const u8 JC_FEATURE_MEM_READ = 0x72;
-static const u8 JC_FEATURE_ERASE_MEM_SECTOR = 0x73;
-static const u8 JC_FEATURE_MEM_WRITE = 0x74;
-static const u8 JC_FEATURE_LAUNCH = 0x75;
-
-/* USB Commands */
-static const u8 JC_USB_CMD_CONN_STATUS = 0x01;
-static const u8 JC_USB_CMD_HANDSHAKE = 0x02;
-static const u8 JC_USB_CMD_BAUDRATE_3M = 0x03;
-static const u8 JC_USB_CMD_NO_TIMEOUT = 0x04;
-static const u8 JC_USB_CMD_EN_TIMEOUT = 0x05;
-static const u8 JC_USB_RESET = 0x06;
-static const u8 JC_USB_PRE_HANDSHAKE = 0x91;
-static const u8 JC_USB_SEND_UART = 0x92;
-
-/* Magic value denoting presence of user calibration */
-static const u16 JC_CAL_USR_MAGIC_0 = 0xB2;
-static const u16 JC_CAL_USR_MAGIC_1 = 0xA1;
-static const u8 JC_CAL_USR_MAGIC_SIZE = 2;
-
-/* SPI storage addresses of user calibration data */
-static const u16 JC_CAL_USR_LEFT_MAGIC_ADDR = 0x8010;
-static const u16 JC_CAL_USR_LEFT_DATA_ADDR = 0x8012;
-static const u16 JC_CAL_USR_LEFT_DATA_END = 0x801A;
-static const u16 JC_CAL_USR_RIGHT_MAGIC_ADDR = 0x801B;
-static const u16 JC_CAL_USR_RIGHT_DATA_ADDR = 0x801D;
-#define JC_CAL_STICK_DATA_SIZE \
- (JC_CAL_USR_LEFT_DATA_END - JC_CAL_USR_LEFT_DATA_ADDR + 1)
-
-/* SPI storage addresses of factory calibration data */
-static const u16 JC_CAL_FCT_DATA_LEFT_ADDR = 0x603d;
-static const u16 JC_CAL_FCT_DATA_RIGHT_ADDR = 0x6046;
-
-/* SPI storage addresses of IMU factory calibration data */
-static const u16 JC_IMU_CAL_FCT_DATA_ADDR = 0x6020;
-static const u16 JC_IMU_CAL_FCT_DATA_END = 0x6037;
-#define JC_IMU_CAL_DATA_SIZE \
- (JC_IMU_CAL_FCT_DATA_END - JC_IMU_CAL_FCT_DATA_ADDR + 1)
-/* SPI storage addresses of IMU user calibration data */
-static const u16 JC_IMU_CAL_USR_MAGIC_ADDR = 0x8026;
-static const u16 JC_IMU_CAL_USR_DATA_ADDR = 0x8028;
-
-/* The raw analog joystick values will be mapped in terms of this magnitude */
-static const u16 JC_MAX_STICK_MAG = 32767;
-static const u16 JC_STICK_FUZZ = 250;
-static const u16 JC_STICK_FLAT = 500;
-
-/* Hat values for pro controller's d-pad */
-static const u16 JC_MAX_DPAD_MAG = 1;
-static const u16 JC_DPAD_FUZZ /*= 0*/;
-static const u16 JC_DPAD_FLAT /*= 0*/;
-
-/* Under most circumstances IMU reports are pushed every 15ms; use as default */
-static const u16 JC_IMU_DFLT_AVG_DELTA_MS = 15;
-/* How many samples to sum before calculating average IMU report delta */
-static const u16 JC_IMU_SAMPLES_PER_DELTA_AVG = 300;
-/* Controls how many dropped IMU packets at once trigger a warning message */
-static const u16 JC_IMU_DROPPED_PKT_WARNING = 3;
-
-/*
- * The controller's accelerometer has a sensor resolution of 16bits and is
- * configured with a range of +-8000 milliGs. Therefore, the resolution can be
- * calculated thus: (2^16-1)/(8000 * 2) = 4.096 digits per milliG
- * Resolution per G (rather than per millliG): 4.096 * 1000 = 4096 digits per G
- * Alternatively: 1/4096 = .0002441 Gs per digit
- */
-static const s32 JC_IMU_MAX_ACCEL_MAG = 32767;
-static const u16 JC_IMU_ACCEL_RES_PER_G = 4096;
-static const u16 JC_IMU_ACCEL_FUZZ = 10;
-static const u16 JC_IMU_ACCEL_FLAT /*= 0*/;
-
-/*
- * The controller's gyroscope has a sensor resolution of 16bits and is
- * configured with a range of +-2000 degrees/second.
- * Digits per dps: (2^16 -1)/(2000*2) = 16.38375
- * dps per digit: 16.38375E-1 = .0610
- *
- * STMicro recommends in the datasheet to add 15% to the dps/digit. This allows
- * the full sensitivity range to be saturated without clipping. This yields more
- * accurate results, so it's the technique this driver uses.
- * dps per digit (corrected): .0610 * 1.15 = .0702
- * digits per dps (corrected): .0702E-1 = 14.247
- *
- * Now, 14.247 truncating to 14 loses a lot of precision, so we rescale the
- * min/max range by 1000.
- */
-static const s32 JC_IMU_PREC_RANGE_SCALE = 1000;
-/* Note: change mag and res_per_dps if prec_range_scale is ever altered */
-static const s32 JC_IMU_MAX_GYRO_MAG = 32767000; /* (2^16-1)*1000 */
-static const u16 JC_IMU_GYRO_RES_PER_DPS = 14247; /* (14.247*1000) */
-static const u16 JC_IMU_GYRO_FUZZ = 10;
-static const u16 JC_IMU_GYRO_FLAT /*= 0*/;
-
-/* frequency/amplitude tables for rumble */
-struct joycon_rumble_freq_data {
- u16 high;
- u8 low;
- u16 freq; /* Hz*/
-};
-
-struct joycon_rumble_amp_data {
- u8 high;
- u16 low;
- u16 amp;
-};
-
-/*
- * These tables are from
- * https://github.com/dekuNukem/Nintendo_Switch_Reverse_Engineering/blob/master/rumble_data_table.md
- */
-static const struct joycon_rumble_freq_data joycon_rumble_frequencies[] = {
- /* high, low, freq */
- { 0x0000, 0x01, 41 }, { 0x0000, 0x02, 42 }, { 0x0000, 0x03, 43 },
- { 0x0000, 0x04, 44 }, { 0x0000, 0x05, 45 }, { 0x0000, 0x06, 46 },
- { 0x0000, 0x07, 47 }, { 0x0000, 0x08, 48 }, { 0x0000, 0x09, 49 },
- { 0x0000, 0x0A, 50 }, { 0x0000, 0x0B, 51 }, { 0x0000, 0x0C, 52 },
- { 0x0000, 0x0D, 53 }, { 0x0000, 0x0E, 54 }, { 0x0000, 0x0F, 55 },
- { 0x0000, 0x10, 57 }, { 0x0000, 0x11, 58 }, { 0x0000, 0x12, 59 },
- { 0x0000, 0x13, 60 }, { 0x0000, 0x14, 62 }, { 0x0000, 0x15, 63 },
- { 0x0000, 0x16, 64 }, { 0x0000, 0x17, 66 }, { 0x0000, 0x18, 67 },
- { 0x0000, 0x19, 69 }, { 0x0000, 0x1A, 70 }, { 0x0000, 0x1B, 72 },
- { 0x0000, 0x1C, 73 }, { 0x0000, 0x1D, 75 }, { 0x0000, 0x1e, 77 },
- { 0x0000, 0x1f, 78 }, { 0x0000, 0x20, 80 }, { 0x0400, 0x21, 82 },
- { 0x0800, 0x22, 84 }, { 0x0c00, 0x23, 85 }, { 0x1000, 0x24, 87 },
- { 0x1400, 0x25, 89 }, { 0x1800, 0x26, 91 }, { 0x1c00, 0x27, 93 },
- { 0x2000, 0x28, 95 }, { 0x2400, 0x29, 97 }, { 0x2800, 0x2a, 99 },
- { 0x2c00, 0x2b, 102 }, { 0x3000, 0x2c, 104 }, { 0x3400, 0x2d, 106 },
- { 0x3800, 0x2e, 108 }, { 0x3c00, 0x2f, 111 }, { 0x4000, 0x30, 113 },
- { 0x4400, 0x31, 116 }, { 0x4800, 0x32, 118 }, { 0x4c00, 0x33, 121 },
- { 0x5000, 0x34, 123 }, { 0x5400, 0x35, 126 }, { 0x5800, 0x36, 129 },
- { 0x5c00, 0x37, 132 }, { 0x6000, 0x38, 135 }, { 0x6400, 0x39, 137 },
- { 0x6800, 0x3a, 141 }, { 0x6c00, 0x3b, 144 }, { 0x7000, 0x3c, 147 },
- { 0x7400, 0x3d, 150 }, { 0x7800, 0x3e, 153 }, { 0x7c00, 0x3f, 157 },
- { 0x8000, 0x40, 160 }, { 0x8400, 0x41, 164 }, { 0x8800, 0x42, 167 },
- { 0x8c00, 0x43, 171 }, { 0x9000, 0x44, 174 }, { 0x9400, 0x45, 178 },
- { 0x9800, 0x46, 182 }, { 0x9c00, 0x47, 186 }, { 0xa000, 0x48, 190 },
- { 0xa400, 0x49, 194 }, { 0xa800, 0x4a, 199 }, { 0xac00, 0x4b, 203 },
- { 0xb000, 0x4c, 207 }, { 0xb400, 0x4d, 212 }, { 0xb800, 0x4e, 217 },
- { 0xbc00, 0x4f, 221 }, { 0xc000, 0x50, 226 }, { 0xc400, 0x51, 231 },
- { 0xc800, 0x52, 236 }, { 0xcc00, 0x53, 241 }, { 0xd000, 0x54, 247 },
- { 0xd400, 0x55, 252 }, { 0xd800, 0x56, 258 }, { 0xdc00, 0x57, 263 },
- { 0xe000, 0x58, 269 }, { 0xe400, 0x59, 275 }, { 0xe800, 0x5a, 281 },
- { 0xec00, 0x5b, 287 }, { 0xf000, 0x5c, 293 }, { 0xf400, 0x5d, 300 },
- { 0xf800, 0x5e, 306 }, { 0xfc00, 0x5f, 313 }, { 0x0001, 0x60, 320 },
- { 0x0401, 0x61, 327 }, { 0x0801, 0x62, 334 }, { 0x0c01, 0x63, 341 },
- { 0x1001, 0x64, 349 }, { 0x1401, 0x65, 357 }, { 0x1801, 0x66, 364 },
- { 0x1c01, 0x67, 372 }, { 0x2001, 0x68, 381 }, { 0x2401, 0x69, 389 },
- { 0x2801, 0x6a, 397 }, { 0x2c01, 0x6b, 406 }, { 0x3001, 0x6c, 415 },
- { 0x3401, 0x6d, 424 }, { 0x3801, 0x6e, 433 }, { 0x3c01, 0x6f, 443 },
- { 0x4001, 0x70, 453 }, { 0x4401, 0x71, 462 }, { 0x4801, 0x72, 473 },
- { 0x4c01, 0x73, 483 }, { 0x5001, 0x74, 494 }, { 0x5401, 0x75, 504 },
- { 0x5801, 0x76, 515 }, { 0x5c01, 0x77, 527 }, { 0x6001, 0x78, 538 },
- { 0x6401, 0x79, 550 }, { 0x6801, 0x7a, 562 }, { 0x6c01, 0x7b, 574 },
- { 0x7001, 0x7c, 587 }, { 0x7401, 0x7d, 600 }, { 0x7801, 0x7e, 613 },
- { 0x7c01, 0x7f, 626 }, { 0x8001, 0x00, 640 }, { 0x8401, 0x00, 654 },
- { 0x8801, 0x00, 668 }, { 0x8c01, 0x00, 683 }, { 0x9001, 0x00, 698 },
- { 0x9401, 0x00, 713 }, { 0x9801, 0x00, 729 }, { 0x9c01, 0x00, 745 },
- { 0xa001, 0x00, 761 }, { 0xa401, 0x00, 778 }, { 0xa801, 0x00, 795 },
- { 0xac01, 0x00, 812 }, { 0xb001, 0x00, 830 }, { 0xb401, 0x00, 848 },
- { 0xb801, 0x00, 867 }, { 0xbc01, 0x00, 886 }, { 0xc001, 0x00, 905 },
- { 0xc401, 0x00, 925 }, { 0xc801, 0x00, 945 }, { 0xcc01, 0x00, 966 },
- { 0xd001, 0x00, 987 }, { 0xd401, 0x00, 1009 }, { 0xd801, 0x00, 1031 },
- { 0xdc01, 0x00, 1053 }, { 0xe001, 0x00, 1076 }, { 0xe401, 0x00, 1100 },
- { 0xe801, 0x00, 1124 }, { 0xec01, 0x00, 1149 }, { 0xf001, 0x00, 1174 },
- { 0xf401, 0x00, 1199 }, { 0xf801, 0x00, 1226 }, { 0xfc01, 0x00, 1253 }
-};
-
-#define joycon_max_rumble_amp (1003)
-static const struct joycon_rumble_amp_data joycon_rumble_amplitudes[] = {
- /* high, low, amp */
- { 0x00, 0x0040, 0 },
- { 0x02, 0x8040, 10 }, { 0x04, 0x0041, 12 }, { 0x06, 0x8041, 14 },
- { 0x08, 0x0042, 17 }, { 0x0a, 0x8042, 20 }, { 0x0c, 0x0043, 24 },
- { 0x0e, 0x8043, 28 }, { 0x10, 0x0044, 33 }, { 0x12, 0x8044, 40 },
- { 0x14, 0x0045, 47 }, { 0x16, 0x8045, 56 }, { 0x18, 0x0046, 67 },
- { 0x1a, 0x8046, 80 }, { 0x1c, 0x0047, 95 }, { 0x1e, 0x8047, 112 },
- { 0x20, 0x0048, 117 }, { 0x22, 0x8048, 123 }, { 0x24, 0x0049, 128 },
- { 0x26, 0x8049, 134 }, { 0x28, 0x004a, 140 }, { 0x2a, 0x804a, 146 },
- { 0x2c, 0x004b, 152 }, { 0x2e, 0x804b, 159 }, { 0x30, 0x004c, 166 },
- { 0x32, 0x804c, 173 }, { 0x34, 0x004d, 181 }, { 0x36, 0x804d, 189 },
- { 0x38, 0x004e, 198 }, { 0x3a, 0x804e, 206 }, { 0x3c, 0x004f, 215 },
- { 0x3e, 0x804f, 225 }, { 0x40, 0x0050, 230 }, { 0x42, 0x8050, 235 },
- { 0x44, 0x0051, 240 }, { 0x46, 0x8051, 245 }, { 0x48, 0x0052, 251 },
- { 0x4a, 0x8052, 256 }, { 0x4c, 0x0053, 262 }, { 0x4e, 0x8053, 268 },
- { 0x50, 0x0054, 273 }, { 0x52, 0x8054, 279 }, { 0x54, 0x0055, 286 },
- { 0x56, 0x8055, 292 }, { 0x58, 0x0056, 298 }, { 0x5a, 0x8056, 305 },
- { 0x5c, 0x0057, 311 }, { 0x5e, 0x8057, 318 }, { 0x60, 0x0058, 325 },
- { 0x62, 0x8058, 332 }, { 0x64, 0x0059, 340 }, { 0x66, 0x8059, 347 },
- { 0x68, 0x005a, 355 }, { 0x6a, 0x805a, 362 }, { 0x6c, 0x005b, 370 },
- { 0x6e, 0x805b, 378 }, { 0x70, 0x005c, 387 }, { 0x72, 0x805c, 395 },
- { 0x74, 0x005d, 404 }, { 0x76, 0x805d, 413 }, { 0x78, 0x005e, 422 },
- { 0x7a, 0x805e, 431 }, { 0x7c, 0x005f, 440 }, { 0x7e, 0x805f, 450 },
- { 0x80, 0x0060, 460 }, { 0x82, 0x8060, 470 }, { 0x84, 0x0061, 480 },
- { 0x86, 0x8061, 491 }, { 0x88, 0x0062, 501 }, { 0x8a, 0x8062, 512 },
- { 0x8c, 0x0063, 524 }, { 0x8e, 0x8063, 535 }, { 0x90, 0x0064, 547 },
- { 0x92, 0x8064, 559 }, { 0x94, 0x0065, 571 }, { 0x96, 0x8065, 584 },
- { 0x98, 0x0066, 596 }, { 0x9a, 0x8066, 609 }, { 0x9c, 0x0067, 623 },
- { 0x9e, 0x8067, 636 }, { 0xa0, 0x0068, 650 }, { 0xa2, 0x8068, 665 },
- { 0xa4, 0x0069, 679 }, { 0xa6, 0x8069, 694 }, { 0xa8, 0x006a, 709 },
- { 0xaa, 0x806a, 725 }, { 0xac, 0x006b, 741 }, { 0xae, 0x806b, 757 },
- { 0xb0, 0x006c, 773 }, { 0xb2, 0x806c, 790 }, { 0xb4, 0x006d, 808 },
- { 0xb6, 0x806d, 825 }, { 0xb8, 0x006e, 843 }, { 0xba, 0x806e, 862 },
- { 0xbc, 0x006f, 881 }, { 0xbe, 0x806f, 900 }, { 0xc0, 0x0070, 920 },
- { 0xc2, 0x8070, 940 }, { 0xc4, 0x0071, 960 }, { 0xc6, 0x8071, 981 },
- { 0xc8, 0x0072, joycon_max_rumble_amp }
-};
-
-/* States for controller state machine */
-enum joycon_ctlr_state {
- JOYCON_CTLR_STATE_INIT,
- JOYCON_CTLR_STATE_READ,
- JOYCON_CTLR_STATE_REMOVED,
-};
-
-/* Controller type received as part of device info */
-enum joycon_ctlr_type {
- JOYCON_CTLR_TYPE_JCL = 0x01,
- JOYCON_CTLR_TYPE_JCR = 0x02,
- JOYCON_CTLR_TYPE_PRO = 0x03,
-};
-
-struct joycon_stick_cal {
- s32 max;
- s32 min;
- s32 center;
-};
-
-struct joycon_imu_cal {
- s16 offset[3];
- s16 scale[3];
-};
-
-/*
- * All the controller's button values are stored in a u32.
- * They can be accessed with bitwise ANDs.
- */
-static const u32 JC_BTN_Y = BIT(0);
-static const u32 JC_BTN_X = BIT(1);
-static const u32 JC_BTN_B = BIT(2);
-static const u32 JC_BTN_A = BIT(3);
-static const u32 JC_BTN_SR_R = BIT(4);
-static const u32 JC_BTN_SL_R = BIT(5);
-static const u32 JC_BTN_R = BIT(6);
-static const u32 JC_BTN_ZR = BIT(7);
-static const u32 JC_BTN_MINUS = BIT(8);
-static const u32 JC_BTN_PLUS = BIT(9);
-static const u32 JC_BTN_RSTICK = BIT(10);
-static const u32 JC_BTN_LSTICK = BIT(11);
-static const u32 JC_BTN_HOME = BIT(12);
-static const u32 JC_BTN_CAP = BIT(13); /* capture button */
-static const u32 JC_BTN_DOWN = BIT(16);
-static const u32 JC_BTN_UP = BIT(17);
-static const u32 JC_BTN_RIGHT = BIT(18);
-static const u32 JC_BTN_LEFT = BIT(19);
-static const u32 JC_BTN_SR_L = BIT(20);
-static const u32 JC_BTN_SL_L = BIT(21);
-static const u32 JC_BTN_L = BIT(22);
-static const u32 JC_BTN_ZL = BIT(23);
-
-enum joycon_msg_type {
- JOYCON_MSG_TYPE_NONE,
- JOYCON_MSG_TYPE_USB,
- JOYCON_MSG_TYPE_SUBCMD,
-};
-
-struct joycon_rumble_output {
- u8 output_id;
- u8 packet_num;
- u8 rumble_data[8];
-} __packed;
-
-struct joycon_subcmd_request {
- u8 output_id; /* must be 0x01 for subcommand, 0x10 for rumble only */
- u8 packet_num; /* incremented every send */
- u8 rumble_data[8];
- u8 subcmd_id;
- u8 data[]; /* length depends on the subcommand */
-} __packed;
-
-struct joycon_subcmd_reply {
- u8 ack; /* MSB 1 for ACK, 0 for NACK */
- u8 id; /* id of requested subcmd */
- u8 data[]; /* will be at most 35 bytes */
-} __packed;
-
-struct joycon_imu_data {
- s16 accel_x;
- s16 accel_y;
- s16 accel_z;
- s16 gyro_x;
- s16 gyro_y;
- s16 gyro_z;
-} __packed;
-
-struct joycon_input_report {
- u8 id;
- u8 timer;
- u8 bat_con; /* battery and connection info */
- u8 button_status[3];
- u8 left_stick[3];
- u8 right_stick[3];
- u8 vibrator_report;
-
- union {
- struct joycon_subcmd_reply subcmd_reply;
- /* IMU input reports contain 3 samples */
- u8 imu_raw_bytes[sizeof(struct joycon_imu_data) * 3];
- };
-} __packed;
-
-#define JC_MAX_RESP_SIZE (sizeof(struct joycon_input_report) + 35)
-#define JC_RUMBLE_DATA_SIZE 8
-#define JC_RUMBLE_QUEUE_SIZE 8
-
-static const u16 JC_RUMBLE_DFLT_LOW_FREQ = 160;
-static const u16 JC_RUMBLE_DFLT_HIGH_FREQ = 320;
-static const u16 JC_RUMBLE_PERIOD_MS = 50;
-static const unsigned short JC_RUMBLE_ZERO_AMP_PKT_CNT = 5;
-
-static const char * const joycon_player_led_names[] = {
- LED_FUNCTION_PLAYER1,
- LED_FUNCTION_PLAYER2,
- LED_FUNCTION_PLAYER3,
- LED_FUNCTION_PLAYER4,
-};
-#define JC_NUM_LEDS ARRAY_SIZE(joycon_player_led_names)
-
-/* Each physical controller is associated with a joycon_ctlr struct */
-struct joycon_ctlr {
- struct hid_device *hdev;
- struct input_dev *input;
- struct led_classdev leds[JC_NUM_LEDS]; /* player leds */
- struct led_classdev home_led;
- enum joycon_ctlr_state ctlr_state;
- spinlock_t lock;
- u8 mac_addr[6];
- char *mac_addr_str;
- enum joycon_ctlr_type ctlr_type;
-
- /* The following members are used for synchronous sends/receives */
- enum joycon_msg_type msg_type;
- u8 subcmd_num;
- struct mutex output_mutex;
- u8 input_buf[JC_MAX_RESP_SIZE];
- wait_queue_head_t wait;
- bool received_resp;
- u8 usb_ack_match;
- u8 subcmd_ack_match;
- bool received_input_report;
- unsigned int last_subcmd_sent_msecs;
-
- /* factory calibration data */
- struct joycon_stick_cal left_stick_cal_x;
- struct joycon_stick_cal left_stick_cal_y;
- struct joycon_stick_cal right_stick_cal_x;
- struct joycon_stick_cal right_stick_cal_y;
-
- struct joycon_imu_cal accel_cal;
- struct joycon_imu_cal gyro_cal;
-
- /* prevents needlessly recalculating these divisors every sample */
- s32 imu_cal_accel_divisor[3];
- s32 imu_cal_gyro_divisor[3];
-
- /* power supply data */
- struct power_supply *battery;
- struct power_supply_desc battery_desc;
- u8 battery_capacity;
- bool battery_charging;
- bool host_powered;
-
- /* rumble */
- u8 rumble_data[JC_RUMBLE_QUEUE_SIZE][JC_RUMBLE_DATA_SIZE];
- int rumble_queue_head;
- int rumble_queue_tail;
- struct workqueue_struct *rumble_queue;
- struct work_struct rumble_worker;
- unsigned int rumble_msecs;
- u16 rumble_ll_freq;
- u16 rumble_lh_freq;
- u16 rumble_rl_freq;
- u16 rumble_rh_freq;
- unsigned short rumble_zero_countdown;
-
- /* imu */
- struct input_dev *imu_input;
- bool imu_first_packet_received; /* helps in initiating timestamp */
- unsigned int imu_timestamp_us; /* timestamp we report to userspace */
- unsigned int imu_last_pkt_ms; /* used to calc imu report delta */
- /* the following are used to track the average imu report time delta */
- unsigned int imu_delta_samples_count;
- unsigned int imu_delta_samples_sum;
- unsigned int imu_avg_delta_ms;
-};
-
-/* Helper macros for checking controller type */
-#define jc_type_is_joycon(ctlr) \
- (ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_JOYCONL || \
- ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_JOYCONR || \
- ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_CHRGGRIP)
-#define jc_type_is_procon(ctlr) \
- (ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_PROCON)
-#define jc_type_is_chrggrip(ctlr) \
- (ctlr->hdev->product == USB_DEVICE_ID_NINTENDO_CHRGGRIP)
-
-/* Does this controller have inputs associated with left joycon? */
-#define jc_type_has_left(ctlr) \
- (ctlr->ctlr_type == JOYCON_CTLR_TYPE_JCL || \
- ctlr->ctlr_type == JOYCON_CTLR_TYPE_PRO)
-
-/* Does this controller have inputs associated with right joycon? */
-#define jc_type_has_right(ctlr) \
- (ctlr->ctlr_type == JOYCON_CTLR_TYPE_JCR || \
- ctlr->ctlr_type == JOYCON_CTLR_TYPE_PRO)
-
-static int __joycon_hid_send(struct hid_device *hdev, u8 *data, size_t len)
-{
- u8 *buf;
- int ret;
-
- buf = kmemdup(data, len, GFP_KERNEL);
- if (!buf)
- return -ENOMEM;
- ret = hid_hw_output_report(hdev, buf, len);
- kfree(buf);
- if (ret < 0)
- hid_dbg(hdev, "Failed to send output report ret=%d\n", ret);
- return ret;
-}
-
-static void joycon_wait_for_input_report(struct joycon_ctlr *ctlr)
-{
- int ret;
-
- /*
- * If we are in the proper reporting mode, wait for an input
- * report prior to sending the subcommand. This improves
- * reliability considerably.
- */
- if (ctlr->ctlr_state == JOYCON_CTLR_STATE_READ) {
- unsigned long flags;
-
- spin_lock_irqsave(&ctlr->lock, flags);
- ctlr->received_input_report = false;
- spin_unlock_irqrestore(&ctlr->lock, flags);
- ret = wait_event_timeout(ctlr->wait,
- ctlr->received_input_report,
- HZ / 4);
- /* We will still proceed, even with a timeout here */
- if (!ret)
- hid_warn(ctlr->hdev,
- "timeout waiting for input report\n");
- }
-}
-
-/*
- * Sending subcommands and/or rumble data at too high a rate can cause bluetooth
- * controller disconnections.
- */
-static void joycon_enforce_subcmd_rate(struct joycon_ctlr *ctlr)
-{
- static const unsigned int max_subcmd_rate_ms = 25;
- unsigned int current_ms = jiffies_to_msecs(jiffies);
- unsigned int delta_ms = current_ms - ctlr->last_subcmd_sent_msecs;
-
- while (delta_ms < max_subcmd_rate_ms &&
- ctlr->ctlr_state == JOYCON_CTLR_STATE_READ) {
- joycon_wait_for_input_report(ctlr);
- current_ms = jiffies_to_msecs(jiffies);
- delta_ms = current_ms - ctlr->last_subcmd_sent_msecs;
- }
- ctlr->last_subcmd_sent_msecs = current_ms;
-}
-
-static int joycon_hid_send_sync(struct joycon_ctlr *ctlr, u8 *data, size_t len,
- u32 timeout)
-{
- int ret;
- int tries = 2;
-
- /*
- * The controller occasionally seems to drop subcommands. In testing,
- * doing one retry after a timeout appears to always work.
- */
- while (tries--) {
- joycon_enforce_subcmd_rate(ctlr);
-
- ret = __joycon_hid_send(ctlr->hdev, data, len);
- if (ret < 0) {
- memset(ctlr->input_buf, 0, JC_MAX_RESP_SIZE);
- return ret;
- }
-
- ret = wait_event_timeout(ctlr->wait, ctlr->received_resp,
- timeout);
- if (!ret) {
- hid_dbg(ctlr->hdev,
- "synchronous send/receive timed out\n");
- if (tries) {
- hid_dbg(ctlr->hdev,
- "retrying sync send after timeout\n");
- }
- memset(ctlr->input_buf, 0, JC_MAX_RESP_SIZE);
- ret = -ETIMEDOUT;
- } else {
- ret = 0;
- break;
- }
- }
-
- ctlr->received_resp = false;
- return ret;
-}
-
-static int joycon_send_usb(struct joycon_ctlr *ctlr, u8 cmd, u32 timeout)
-{
- int ret;
- u8 buf[2] = {JC_OUTPUT_USB_CMD};
-
- buf[1] = cmd;
- ctlr->usb_ack_match = cmd;
- ctlr->msg_type = JOYCON_MSG_TYPE_USB;
- ret = joycon_hid_send_sync(ctlr, buf, sizeof(buf), timeout);
- if (ret)
- hid_dbg(ctlr->hdev, "send usb command failed; ret=%d\n", ret);
- return ret;
-}
-
-static int joycon_send_subcmd(struct joycon_ctlr *ctlr,
- struct joycon_subcmd_request *subcmd,
- size_t data_len, u32 timeout)
-{
- int ret;
- unsigned long flags;
-
- spin_lock_irqsave(&ctlr->lock, flags);
- /*
- * If the controller has been removed, just return ENODEV so the LED
- * subsystem doesn't print invalid errors on removal.
- */
- if (ctlr->ctlr_state == JOYCON_CTLR_STATE_REMOVED) {
- spin_unlock_irqrestore(&ctlr->lock, flags);
- return -ENODEV;
- }
- memcpy(subcmd->rumble_data, ctlr->rumble_data[ctlr->rumble_queue_tail],
- JC_RUMBLE_DATA_SIZE);
- spin_unlock_irqrestore(&ctlr->lock, flags);
-
- subcmd->output_id = JC_OUTPUT_RUMBLE_AND_SUBCMD;
- subcmd->packet_num = ctlr->subcmd_num;
- if (++ctlr->subcmd_num > 0xF)
- ctlr->subcmd_num = 0;
- ctlr->subcmd_ack_match = subcmd->subcmd_id;
- ctlr->msg_type = JOYCON_MSG_TYPE_SUBCMD;
-
- ret = joycon_hid_send_sync(ctlr, (u8 *)subcmd,
- sizeof(*subcmd) + data_len, timeout);
- if (ret < 0)
- hid_dbg(ctlr->hdev, "send subcommand failed; ret=%d\n", ret);
- else
- ret = 0;
- return ret;
-}
-
-/* Supply nibbles for flash and on. Ones correspond to active */
-static int joycon_set_player_leds(struct joycon_ctlr *ctlr, u8 flash, u8 on)
-{
- struct joycon_subcmd_request *req;
- u8 buffer[sizeof(*req) + 1] = { 0 };
-
- req = (struct joycon_subcmd_request *)buffer;
- req->subcmd_id = JC_SUBCMD_SET_PLAYER_LIGHTS;
- req->data[0] = (flash << 4) | on;
-
- hid_dbg(ctlr->hdev, "setting player leds\n");
- return joycon_send_subcmd(ctlr, req, 1, HZ/4);
-}
-
-static int joycon_request_spi_flash_read(struct joycon_ctlr *ctlr,
- u32 start_addr, u8 size, u8 **reply)
-{
- struct joycon_subcmd_request *req;
- struct joycon_input_report *report;
- u8 buffer[sizeof(*req) + 5] = { 0 };
- u8 *data;
- int ret;
-
- if (!reply)
- return -EINVAL;
-
- req = (struct joycon_subcmd_request *)buffer;
- req->subcmd_id = JC_SUBCMD_SPI_FLASH_READ;
- data = req->data;
- put_unaligned_le32(start_addr, data);
- data[4] = size;
-
- hid_dbg(ctlr->hdev, "requesting SPI flash data\n");
- ret = joycon_send_subcmd(ctlr, req, 5, HZ);
- if (ret) {
- hid_err(ctlr->hdev, "failed reading SPI flash; ret=%d\n", ret);
- } else {
- report = (struct joycon_input_report *)ctlr->input_buf;
- /* The read data starts at the 6th byte */
- *reply = &report->subcmd_reply.data[5];
- }
- return ret;
-}
-
-/*
- * User calibration's presence is denoted with a magic byte preceding it.
- * returns 0 if magic val is present, 1 if not present, < 0 on error
- */
-static int joycon_check_for_cal_magic(struct joycon_ctlr *ctlr, u32 flash_addr)
-{
- int ret;
- u8 *reply;
-
- ret = joycon_request_spi_flash_read(ctlr, flash_addr,
- JC_CAL_USR_MAGIC_SIZE, &reply);
- if (ret)
- return ret;
-
- return reply[0] != JC_CAL_USR_MAGIC_0 || reply[1] != JC_CAL_USR_MAGIC_1;
-}
-
-static int joycon_read_stick_calibration(struct joycon_ctlr *ctlr, u16 cal_addr,
- struct joycon_stick_cal *cal_x,
- struct joycon_stick_cal *cal_y,
- bool left_stick)
-{
- s32 x_max_above;
- s32 x_min_below;
- s32 y_max_above;
- s32 y_min_below;
- u8 *raw_cal;
- int ret;
-
- ret = joycon_request_spi_flash_read(ctlr, cal_addr,
- JC_CAL_STICK_DATA_SIZE, &raw_cal);
- if (ret)
- return ret;
-
- /* stick calibration parsing: note the order differs based on stick */
- if (left_stick) {
- x_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 0), 0,
- 12);
- y_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 1), 4,
- 12);
- cal_x->center = hid_field_extract(ctlr->hdev, (raw_cal + 3), 0,
- 12);
- cal_y->center = hid_field_extract(ctlr->hdev, (raw_cal + 4), 4,
- 12);
- x_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 6), 0,
- 12);
- y_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 7), 4,
- 12);
- } else {
- cal_x->center = hid_field_extract(ctlr->hdev, (raw_cal + 0), 0,
- 12);
- cal_y->center = hid_field_extract(ctlr->hdev, (raw_cal + 1), 4,
- 12);
- x_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 3), 0,
- 12);
- y_min_below = hid_field_extract(ctlr->hdev, (raw_cal + 4), 4,
- 12);
- x_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 6), 0,
- 12);
- y_max_above = hid_field_extract(ctlr->hdev, (raw_cal + 7), 4,
- 12);
- }
-
- cal_x->max = cal_x->center + x_max_above;
- cal_x->min = cal_x->center - x_min_below;
- cal_y->max = cal_y->center + y_max_above;
- cal_y->min = cal_y->center - y_min_below;
-
- return 0;
-}
-
-static const u16 DFLT_STICK_CAL_CEN = 2000;
-static const u16 DFLT_STICK_CAL_MAX = 3500;
-static const u16 DFLT_STICK_CAL_MIN = 500;
-static int joycon_request_calibration(struct joycon_ctlr *ctlr)
-{
- u16 left_stick_addr = JC_CAL_FCT_DATA_LEFT_ADDR;
- u16 right_stick_addr = JC_CAL_FCT_DATA_RIGHT_ADDR;
- int ret;
-
- hid_dbg(ctlr->hdev, "requesting cal data\n");
-
- /* check if user stick calibrations are present */
- if (!joycon_check_for_cal_magic(ctlr, JC_CAL_USR_LEFT_MAGIC_ADDR)) {
- left_stick_addr = JC_CAL_USR_LEFT_DATA_ADDR;
- hid_info(ctlr->hdev, "using user cal for left stick\n");
- } else {
- hid_info(ctlr->hdev, "using factory cal for left stick\n");
- }
- if (!joycon_check_for_cal_magic(ctlr, JC_CAL_USR_RIGHT_MAGIC_ADDR)) {
- right_stick_addr = JC_CAL_USR_RIGHT_DATA_ADDR;
- hid_info(ctlr->hdev, "using user cal for right stick\n");
- } else {
- hid_info(ctlr->hdev, "using factory cal for right stick\n");
- }
-
- /* read the left stick calibration data */
- ret = joycon_read_stick_calibration(ctlr, left_stick_addr,
- &ctlr->left_stick_cal_x,
- &ctlr->left_stick_cal_y,
- true);
- if (ret) {
- hid_warn(ctlr->hdev,
- "Failed to read left stick cal, using dflts; e=%d\n",
- ret);
-
- ctlr->left_stick_cal_x.center = DFLT_STICK_CAL_CEN;
- ctlr->left_stick_cal_x.max = DFLT_STICK_CAL_MAX;
- ctlr->left_stick_cal_x.min = DFLT_STICK_CAL_MIN;
-
- ctlr->left_stick_cal_y.center = DFLT_STICK_CAL_CEN;
- ctlr->left_stick_cal_y.max = DFLT_STICK_CAL_MAX;
- ctlr->left_stick_cal_y.min = DFLT_STICK_CAL_MIN;
- }
-
- /* read the right stick calibration data */
- ret = joycon_read_stick_calibration(ctlr, right_stick_addr,
- &ctlr->right_stick_cal_x,
- &ctlr->right_stick_cal_y,
- false);
- if (ret) {
- hid_warn(ctlr->hdev,
- "Failed to read right stick cal, using dflts; e=%d\n",
- ret);
-
- ctlr->right_stick_cal_x.center = DFLT_STICK_CAL_CEN;
- ctlr->right_stick_cal_x.max = DFLT_STICK_CAL_MAX;
- ctlr->right_stick_cal_x.min = DFLT_STICK_CAL_MIN;
-
- ctlr->right_stick_cal_y.center = DFLT_STICK_CAL_CEN;
- ctlr->right_stick_cal_y.max = DFLT_STICK_CAL_MAX;
- ctlr->right_stick_cal_y.min = DFLT_STICK_CAL_MIN;
- }
-
- hid_dbg(ctlr->hdev, "calibration:\n"
- "l_x_c=%d l_x_max=%d l_x_min=%d\n"
- "l_y_c=%d l_y_max=%d l_y_min=%d\n"
- "r_x_c=%d r_x_max=%d r_x_min=%d\n"
- "r_y_c=%d r_y_max=%d r_y_min=%d\n",
- ctlr->left_stick_cal_x.center,
- ctlr->left_stick_cal_x.max,
- ctlr->left_stick_cal_x.min,
- ctlr->left_stick_cal_y.center,
- ctlr->left_stick_cal_y.max,
- ctlr->left_stick_cal_y.min,
- ctlr->right_stick_cal_x.center,
- ctlr->right_stick_cal_x.max,
- ctlr->right_stick_cal_x.min,
- ctlr->right_stick_cal_y.center,
- ctlr->right_stick_cal_y.max,
- ctlr->right_stick_cal_y.min);
-
- return 0;
-}
-
-/*
- * These divisors are calculated once rather than for each sample. They are only
- * dependent on the IMU calibration values. They are used when processing the
- * IMU input reports.
- */
-static void joycon_calc_imu_cal_divisors(struct joycon_ctlr *ctlr)
-{
- int i;
-
- for (i = 0; i < 3; i++) {
- ctlr->imu_cal_accel_divisor[i] = ctlr->accel_cal.scale[i] -
- ctlr->accel_cal.offset[i];
- ctlr->imu_cal_gyro_divisor[i] = ctlr->gyro_cal.scale[i] -
- ctlr->gyro_cal.offset[i];
- }
-}
-
-static const s16 DFLT_ACCEL_OFFSET /*= 0*/;
-static const s16 DFLT_ACCEL_SCALE = 16384;
-static const s16 DFLT_GYRO_OFFSET /*= 0*/;
-static const s16 DFLT_GYRO_SCALE = 13371;
-static int joycon_request_imu_calibration(struct joycon_ctlr *ctlr)
-{
- u16 imu_cal_addr = JC_IMU_CAL_FCT_DATA_ADDR;
- u8 *raw_cal;
- int ret;
- int i;
-
- /* check if user calibration exists */
- if (!joycon_check_for_cal_magic(ctlr, JC_IMU_CAL_USR_MAGIC_ADDR)) {
- imu_cal_addr = JC_IMU_CAL_USR_DATA_ADDR;
- hid_info(ctlr->hdev, "using user cal for IMU\n");
- } else {
- hid_info(ctlr->hdev, "using factory cal for IMU\n");
- }
-
- /* request IMU calibration data */
- hid_dbg(ctlr->hdev, "requesting IMU cal data\n");
- ret = joycon_request_spi_flash_read(ctlr, imu_cal_addr,
- JC_IMU_CAL_DATA_SIZE, &raw_cal);
- if (ret) {
- hid_warn(ctlr->hdev,
- "Failed to read IMU cal, using defaults; ret=%d\n",
- ret);
-
- for (i = 0; i < 3; i++) {
- ctlr->accel_cal.offset[i] = DFLT_ACCEL_OFFSET;
- ctlr->accel_cal.scale[i] = DFLT_ACCEL_SCALE;
- ctlr->gyro_cal.offset[i] = DFLT_GYRO_OFFSET;
- ctlr->gyro_cal.scale[i] = DFLT_GYRO_SCALE;
- }
- joycon_calc_imu_cal_divisors(ctlr);
- return ret;
- }
-
- /* IMU calibration parsing */
- for (i = 0; i < 3; i++) {
- int j = i * 2;
-
- ctlr->accel_cal.offset[i] = get_unaligned_le16(raw_cal + j);
- ctlr->accel_cal.scale[i] = get_unaligned_le16(raw_cal + j + 6);
- ctlr->gyro_cal.offset[i] = get_unaligned_le16(raw_cal + j + 12);
- ctlr->gyro_cal.scale[i] = get_unaligned_le16(raw_cal + j + 18);
- }
-
- joycon_calc_imu_cal_divisors(ctlr);
-
- hid_dbg(ctlr->hdev, "IMU calibration:\n"
- "a_o[0]=%d a_o[1]=%d a_o[2]=%d\n"
- "a_s[0]=%d a_s[1]=%d a_s[2]=%d\n"
- "g_o[0]=%d g_o[1]=%d g_o[2]=%d\n"
- "g_s[0]=%d g_s[1]=%d g_s[2]=%d\n",
- ctlr->accel_cal.offset[0],
- ctlr->accel_cal.offset[1],
- ctlr->accel_cal.offset[2],
- ctlr->accel_cal.scale[0],
- ctlr->accel_cal.scale[1],
- ctlr->accel_cal.scale[2],
- ctlr->gyro_cal.offset[0],
- ctlr->gyro_cal.offset[1],
- ctlr->gyro_cal.offset[2],
- ctlr->gyro_cal.scale[0],
- ctlr->gyro_cal.scale[1],
- ctlr->gyro_cal.scale[2]);
-
- return 0;
-}
-
-static int joycon_set_report_mode(struct joycon_ctlr *ctlr)
-{
- struct joycon_subcmd_request *req;
- u8 buffer[sizeof(*req) + 1] = { 0 };
-
- req = (struct joycon_subcmd_request *)buffer;
- req->subcmd_id = JC_SUBCMD_SET_REPORT_MODE;
- req->data[0] = 0x30; /* standard, full report mode */
-
- hid_dbg(ctlr->hdev, "setting controller report mode\n");
- return joycon_send_subcmd(ctlr, req, 1, HZ);
-}
-
-static int joycon_enable_rumble(struct joycon_ctlr *ctlr)
-{
- struct joycon_subcmd_request *req;
- u8 buffer[sizeof(*req) + 1] = { 0 };
-
- req = (struct joycon_subcmd_request *)buffer;
- req->subcmd_id = JC_SUBCMD_ENABLE_VIBRATION;
- req->data[0] = 0x01; /* note: 0x00 would disable */
-
- hid_dbg(ctlr->hdev, "enabling rumble\n");
- return joycon_send_subcmd(ctlr, req, 1, HZ/4);
-}
-
-static int joycon_enable_imu(struct joycon_ctlr *ctlr)
-{
- struct joycon_subcmd_request *req;
- u8 buffer[sizeof(*req) + 1] = { 0 };
-
- req = (struct joycon_subcmd_request *)buffer;
- req->subcmd_id = JC_SUBCMD_ENABLE_IMU;
- req->data[0] = 0x01; /* note: 0x00 would disable */
-
- hid_dbg(ctlr->hdev, "enabling IMU\n");
- return joycon_send_subcmd(ctlr, req, 1, HZ);
-}
-
-static s32 joycon_map_stick_val(struct joycon_stick_cal *cal, s32 val)
-{
- s32 center = cal->center;
- s32 min = cal->min;
- s32 max = cal->max;
- s32 new_val;
-
- if (val > center) {
- new_val = (val - center) * JC_MAX_STICK_MAG;
- new_val /= (max - center);
- } else {
- new_val = (center - val) * -JC_MAX_STICK_MAG;
- new_val /= (center - min);
- }
- new_val = clamp(new_val, (s32)-JC_MAX_STICK_MAG, (s32)JC_MAX_STICK_MAG);
- return new_val;
-}
-
-static void joycon_input_report_parse_imu_data(struct joycon_ctlr *ctlr,
- struct joycon_input_report *rep,
- struct joycon_imu_data *imu_data)
-{
- u8 *raw = rep->imu_raw_bytes;
- int i;
-
- for (i = 0; i < 3; i++) {
- struct joycon_imu_data *data = &imu_data[i];
-
- data->accel_x = get_unaligned_le16(raw + 0);
- data->accel_y = get_unaligned_le16(raw + 2);
- data->accel_z = get_unaligned_le16(raw + 4);
- data->gyro_x = get_unaligned_le16(raw + 6);
- data->gyro_y = get_unaligned_le16(raw + 8);
- data->gyro_z = get_unaligned_le16(raw + 10);
- /* point to next imu sample */
- raw += sizeof(struct joycon_imu_data);
- }
-}
-
-static void joycon_parse_imu_report(struct joycon_ctlr *ctlr,
- struct joycon_input_report *rep)
-{
- struct joycon_imu_data imu_data[3] = {0}; /* 3 reports per packet */
- struct input_dev *idev = ctlr->imu_input;
- unsigned int msecs = jiffies_to_msecs(jiffies);
- unsigned int last_msecs = ctlr->imu_last_pkt_ms;
- int i;
- int value[6];
-
- joycon_input_report_parse_imu_data(ctlr, rep, imu_data);
-
- /*
- * There are complexities surrounding how we determine the timestamps we
- * associate with the samples we pass to userspace. The IMU input
- * reports do not provide us with a good timestamp. There's a quickly
- * incrementing 8-bit counter per input report, but it is not very
- * useful for this purpose (it is not entirely clear what rate it
- * increments at or if it varies based on packet push rate - more on
- * the push rate below...).
- *
- * The reverse engineering work done on the joy-cons and pro controllers
- * by the community seems to indicate the following:
- * - The controller samples the IMU every 1.35ms. It then does some of
- * its own processing, probably averaging the samples out.
- * - Each imu input report contains 3 IMU samples, (usually 5ms apart).
- * - In the standard reporting mode (which this driver uses exclusively)
- * input reports are pushed from the controller as follows:
- * * joy-con (bluetooth): every 15 ms
- * * joy-cons (in charging grip via USB): every 15 ms
- * * pro controller (USB): every 15 ms
- * * pro controller (bluetooth): every 8 ms (this is the wildcard)
- *
- * Further complicating matters is that some bluetooth stacks are known
- * to alter the controller's packet rate by hardcoding the bluetooth
- * SSR for the switch controllers (android's stack currently sets the
- * SSR to 11ms for both the joy-cons and pro controllers).
- *
- * In my own testing, I've discovered that my pro controller either
- * reports IMU sample batches every 11ms or every 15ms. This rate is
- * stable after connecting. It isn't 100% clear what determines this
- * rate. Importantly, even when sending every 11ms, none of the samples
- * are duplicates. This seems to indicate that the time deltas between
- * reported samples can vary based on the input report rate.
- *
- * The solution employed in this driver is to keep track of the average
- * time delta between IMU input reports. In testing, this value has
- * proven to be stable, staying at 15ms or 11ms, though other hardware
- * configurations and bluetooth stacks could potentially see other rates
- * (hopefully this will become more clear as more people use the
- * driver).
- *
- * Keeping track of the average report delta allows us to submit our
- * timestamps to userspace based on that. Each report contains 3
- * samples, so the IMU sampling rate should be avg_time_delta/3. We can
- * also use this average to detect events where we have dropped a
- * packet. The userspace timestamp for the samples will be adjusted
- * accordingly to prevent unwanted behvaior.
- */
- if (!ctlr->imu_first_packet_received) {
- ctlr->imu_timestamp_us = 0;
- ctlr->imu_delta_samples_count = 0;
- ctlr->imu_delta_samples_sum = 0;
- ctlr->imu_avg_delta_ms = JC_IMU_DFLT_AVG_DELTA_MS;
- ctlr->imu_first_packet_received = true;
- } else {
- unsigned int delta = msecs - last_msecs;
- unsigned int dropped_pkts;
- unsigned int dropped_threshold;
-
- /* avg imu report delta housekeeping */
- ctlr->imu_delta_samples_sum += delta;
- ctlr->imu_delta_samples_count++;
- if (ctlr->imu_delta_samples_count >=
- JC_IMU_SAMPLES_PER_DELTA_AVG) {
- ctlr->imu_avg_delta_ms = ctlr->imu_delta_samples_sum /
- ctlr->imu_delta_samples_count;
- /* don't ever want divide by zero shenanigans */
- if (ctlr->imu_avg_delta_ms == 0) {
- ctlr->imu_avg_delta_ms = 1;
- hid_warn(ctlr->hdev,
- "calculated avg imu delta of 0\n");
- }
- ctlr->imu_delta_samples_count = 0;
- ctlr->imu_delta_samples_sum = 0;
- }
-
- /* useful for debugging IMU sample rate */
- hid_dbg(ctlr->hdev,
- "imu_report: ms=%u last_ms=%u delta=%u avg_delta=%u\n",
- msecs, last_msecs, delta, ctlr->imu_avg_delta_ms);
-
- /* check if any packets have been dropped */
- dropped_threshold = ctlr->imu_avg_delta_ms * 3 / 2;
- dropped_pkts = (delta - min(delta, dropped_threshold)) /
- ctlr->imu_avg_delta_ms;
- ctlr->imu_timestamp_us += 1000 * ctlr->imu_avg_delta_ms;
- if (dropped_pkts > JC_IMU_DROPPED_PKT_WARNING) {
- hid_warn(ctlr->hdev,
- "compensating for %u dropped IMU reports\n",
- dropped_pkts);
- hid_warn(ctlr->hdev,
- "delta=%u avg_delta=%u\n",
- delta, ctlr->imu_avg_delta_ms);
- }
- }
- ctlr->imu_last_pkt_ms = msecs;
-
- /* Each IMU input report contains three samples */
- for (i = 0; i < 3; i++) {
- input_event(idev, EV_MSC, MSC_TIMESTAMP,
- ctlr->imu_timestamp_us);
-
- /*
- * These calculations (which use the controller's calibration
- * settings to improve the final values) are based on those
- * found in the community's reverse-engineering repo (linked at
- * top of driver). For hid-nintendo, we make sure that the final
- * value given to userspace is always in terms of the axis
- * resolution we provided.
- *
- * Currently only the gyro calculations subtract the calibration
- * offsets from the raw value itself. In testing, doing the same
- * for the accelerometer raw values decreased accuracy.
- *
- * Note that the gyro values are multiplied by the
- * precision-saving scaling factor to prevent large inaccuracies
- * due to truncation of the resolution value which would
- * otherwise occur. To prevent overflow (without resorting to 64
- * bit integer math), the mult_frac macro is used.
- */
- value[0] = mult_frac((JC_IMU_PREC_RANGE_SCALE *
- (imu_data[i].gyro_x -
- ctlr->gyro_cal.offset[0])),
- ctlr->gyro_cal.scale[0],
- ctlr->imu_cal_gyro_divisor[0]);
- value[1] = mult_frac((JC_IMU_PREC_RANGE_SCALE *
- (imu_data[i].gyro_y -
- ctlr->gyro_cal.offset[1])),
- ctlr->gyro_cal.scale[1],
- ctlr->imu_cal_gyro_divisor[1]);
- value[2] = mult_frac((JC_IMU_PREC_RANGE_SCALE *
- (imu_data[i].gyro_z -
- ctlr->gyro_cal.offset[2])),
- ctlr->gyro_cal.scale[2],
- ctlr->imu_cal_gyro_divisor[2]);
-
- value[3] = ((s32)imu_data[i].accel_x *
- ctlr->accel_cal.scale[0]) /
- ctlr->imu_cal_accel_divisor[0];
- value[4] = ((s32)imu_data[i].accel_y *
- ctlr->accel_cal.scale[1]) /
- ctlr->imu_cal_accel_divisor[1];
- value[5] = ((s32)imu_data[i].accel_z *
- ctlr->accel_cal.scale[2]) /
- ctlr->imu_cal_accel_divisor[2];
-
- hid_dbg(ctlr->hdev, "raw_gyro: g_x=%d g_y=%d g_z=%d\n",
- imu_data[i].gyro_x, imu_data[i].gyro_y,
- imu_data[i].gyro_z);
- hid_dbg(ctlr->hdev, "raw_accel: a_x=%d a_y=%d a_z=%d\n",
- imu_data[i].accel_x, imu_data[i].accel_y,
- imu_data[i].accel_z);
-
- /*
- * The right joy-con has 2 axes negated, Y and Z. This is due to
- * the orientation of the IMU in the controller. We negate those
- * axes' values in order to be consistent with the left joy-con
- * and the pro controller:
- * X: positive is pointing toward the triggers
- * Y: positive is pointing to the left
- * Z: positive is pointing up (out of the buttons/sticks)
- * The axes follow the right-hand rule.
- */
- if (jc_type_is_joycon(ctlr) && jc_type_has_right(ctlr)) {
- int j;
-
- /* negate all but x axis */
- for (j = 1; j < 6; ++j) {
- if (j == 3)
- continue;
- value[j] *= -1;
- }
- }
-
- input_report_abs(idev, ABS_RX, value[0]);
- input_report_abs(idev, ABS_RY, value[1]);
- input_report_abs(idev, ABS_RZ, value[2]);
- input_report_abs(idev, ABS_X, value[3]);
- input_report_abs(idev, ABS_Y, value[4]);
- input_report_abs(idev, ABS_Z, value[5]);
- input_sync(idev);
- /* convert to micros and divide by 3 (3 samples per report). */
- ctlr->imu_timestamp_us += ctlr->imu_avg_delta_ms * 1000 / 3;
- }
-}
-
-static void joycon_parse_report(struct joycon_ctlr *ctlr,
- struct joycon_input_report *rep)
-{
- struct input_dev *dev = ctlr->input;
- unsigned long flags;
- u8 tmp;
- u32 btns;
- unsigned long msecs = jiffies_to_msecs(jiffies);
-
- spin_lock_irqsave(&ctlr->lock, flags);
- if (IS_ENABLED(CONFIG_NINTENDO_FF) && rep->vibrator_report &&
- (msecs - ctlr->rumble_msecs) >= JC_RUMBLE_PERIOD_MS &&
- (ctlr->rumble_queue_head != ctlr->rumble_queue_tail ||
- ctlr->rumble_zero_countdown > 0)) {
- /*
- * When this value reaches 0, we know we've sent multiple
- * packets to the controller instructing it to disable rumble.
- * We can safely stop sending periodic rumble packets until the
- * next ff effect.
- */
- if (ctlr->rumble_zero_countdown > 0)
- ctlr->rumble_zero_countdown--;
- queue_work(ctlr->rumble_queue, &ctlr->rumble_worker);
- }
-
- /* Parse the battery status */
- tmp = rep->bat_con;
- ctlr->host_powered = tmp & BIT(0);
- ctlr->battery_charging = tmp & BIT(4);
- tmp = tmp >> 5;
- switch (tmp) {
- case 0: /* empty */
- ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
- break;
- case 1: /* low */
- ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
- break;
- case 2: /* medium */
- ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
- break;
- case 3: /* high */
- ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_HIGH;
- break;
- case 4: /* full */
- ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
- break;
- default:
- ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
- hid_warn(ctlr->hdev, "Invalid battery status\n");
- break;
- }
- spin_unlock_irqrestore(&ctlr->lock, flags);
-
- /* Parse the buttons and sticks */
- btns = hid_field_extract(ctlr->hdev, rep->button_status, 0, 24);
-
- if (jc_type_has_left(ctlr)) {
- u16 raw_x;
- u16 raw_y;
- s32 x;
- s32 y;
-
- /* get raw stick values */
- raw_x = hid_field_extract(ctlr->hdev, rep->left_stick, 0, 12);
- raw_y = hid_field_extract(ctlr->hdev,
- rep->left_stick + 1, 4, 12);
- /* map the stick values */
- x = joycon_map_stick_val(&ctlr->left_stick_cal_x, raw_x);
- y = -joycon_map_stick_val(&ctlr->left_stick_cal_y, raw_y);
- /* report sticks */
- input_report_abs(dev, ABS_X, x);
- input_report_abs(dev, ABS_Y, y);
-
- /* report buttons */
- input_report_key(dev, BTN_TL, btns & JC_BTN_L);
- input_report_key(dev, BTN_TL2, btns & JC_BTN_ZL);
- input_report_key(dev, BTN_SELECT, btns & JC_BTN_MINUS);
- input_report_key(dev, BTN_THUMBL, btns & JC_BTN_LSTICK);
- input_report_key(dev, BTN_Z, btns & JC_BTN_CAP);
-
- if (jc_type_is_joycon(ctlr)) {
- /* Report the S buttons as the non-existent triggers */
- input_report_key(dev, BTN_TR, btns & JC_BTN_SL_L);
- input_report_key(dev, BTN_TR2, btns & JC_BTN_SR_L);
-
- /* Report d-pad as digital buttons for the joy-cons */
- input_report_key(dev, BTN_DPAD_DOWN,
- btns & JC_BTN_DOWN);
- input_report_key(dev, BTN_DPAD_UP, btns & JC_BTN_UP);
- input_report_key(dev, BTN_DPAD_RIGHT,
- btns & JC_BTN_RIGHT);
- input_report_key(dev, BTN_DPAD_LEFT,
- btns & JC_BTN_LEFT);
- } else {
- int hatx = 0;
- int haty = 0;
-
- /* d-pad x */
- if (btns & JC_BTN_LEFT)
- hatx = -1;
- else if (btns & JC_BTN_RIGHT)
- hatx = 1;
- input_report_abs(dev, ABS_HAT0X, hatx);
-
- /* d-pad y */
- if (btns & JC_BTN_UP)
- haty = -1;
- else if (btns & JC_BTN_DOWN)
- haty = 1;
- input_report_abs(dev, ABS_HAT0Y, haty);
- }
- }
- if (jc_type_has_right(ctlr)) {
- u16 raw_x;
- u16 raw_y;
- s32 x;
- s32 y;
-
- /* get raw stick values */
- raw_x = hid_field_extract(ctlr->hdev, rep->right_stick, 0, 12);
- raw_y = hid_field_extract(ctlr->hdev,
- rep->right_stick + 1, 4, 12);
- /* map stick values */
- x = joycon_map_stick_val(&ctlr->right_stick_cal_x, raw_x);
- y = -joycon_map_stick_val(&ctlr->right_stick_cal_y, raw_y);
- /* report sticks */
- input_report_abs(dev, ABS_RX, x);
- input_report_abs(dev, ABS_RY, y);
-
- /* report buttons */
- input_report_key(dev, BTN_TR, btns & JC_BTN_R);
- input_report_key(dev, BTN_TR2, btns & JC_BTN_ZR);
- if (jc_type_is_joycon(ctlr)) {
- /* Report the S buttons as the non-existent triggers */
- input_report_key(dev, BTN_TL, btns & JC_BTN_SL_R);
- input_report_key(dev, BTN_TL2, btns & JC_BTN_SR_R);
- }
- input_report_key(dev, BTN_START, btns & JC_BTN_PLUS);
- input_report_key(dev, BTN_THUMBR, btns & JC_BTN_RSTICK);
- input_report_key(dev, BTN_MODE, btns & JC_BTN_HOME);
- input_report_key(dev, BTN_WEST, btns & JC_BTN_Y);
- input_report_key(dev, BTN_NORTH, btns & JC_BTN_X);
- input_report_key(dev, BTN_EAST, btns & JC_BTN_A);
- input_report_key(dev, BTN_SOUTH, btns & JC_BTN_B);
- }
-
- input_sync(dev);
-
- /*
- * Immediately after receiving a report is the most reliable time to
- * send a subcommand to the controller. Wake any subcommand senders
- * waiting for a report.
- */
- if (unlikely(mutex_is_locked(&ctlr->output_mutex))) {
- spin_lock_irqsave(&ctlr->lock, flags);
- ctlr->received_input_report = true;
- spin_unlock_irqrestore(&ctlr->lock, flags);
- wake_up(&ctlr->wait);
- }
-
- /* parse IMU data if present */
- if (rep->id == JC_INPUT_IMU_DATA)
- joycon_parse_imu_report(ctlr, rep);
-}
-
-static int joycon_send_rumble_data(struct joycon_ctlr *ctlr)
-{
- int ret;
- unsigned long flags;
- struct joycon_rumble_output rumble_output = { 0 };
-
- spin_lock_irqsave(&ctlr->lock, flags);
- /*
- * If the controller has been removed, just return ENODEV so the LED
- * subsystem doesn't print invalid errors on removal.
- */
- if (ctlr->ctlr_state == JOYCON_CTLR_STATE_REMOVED) {
- spin_unlock_irqrestore(&ctlr->lock, flags);
- return -ENODEV;
- }
- memcpy(rumble_output.rumble_data,
- ctlr->rumble_data[ctlr->rumble_queue_tail],
- JC_RUMBLE_DATA_SIZE);
- spin_unlock_irqrestore(&ctlr->lock, flags);
-
- rumble_output.output_id = JC_OUTPUT_RUMBLE_ONLY;
- rumble_output.packet_num = ctlr->subcmd_num;
- if (++ctlr->subcmd_num > 0xF)
- ctlr->subcmd_num = 0;
-
- joycon_enforce_subcmd_rate(ctlr);
-
- ret = __joycon_hid_send(ctlr->hdev, (u8 *)&rumble_output,
- sizeof(rumble_output));
- return ret;
-}
-
-static void joycon_rumble_worker(struct work_struct *work)
-{
- struct joycon_ctlr *ctlr = container_of(work, struct joycon_ctlr,
- rumble_worker);
- unsigned long flags;
- bool again = true;
- int ret;
-
- while (again) {
- mutex_lock(&ctlr->output_mutex);
- ret = joycon_send_rumble_data(ctlr);
- mutex_unlock(&ctlr->output_mutex);
-
- /* -ENODEV means the controller was just unplugged */
- spin_lock_irqsave(&ctlr->lock, flags);
- if (ret < 0 && ret != -ENODEV &&
- ctlr->ctlr_state != JOYCON_CTLR_STATE_REMOVED)
- hid_warn(ctlr->hdev, "Failed to set rumble; e=%d", ret);
-
- ctlr->rumble_msecs = jiffies_to_msecs(jiffies);
- if (ctlr->rumble_queue_tail != ctlr->rumble_queue_head) {
- if (++ctlr->rumble_queue_tail >= JC_RUMBLE_QUEUE_SIZE)
- ctlr->rumble_queue_tail = 0;
- } else {
- again = false;
- }
- spin_unlock_irqrestore(&ctlr->lock, flags);
- }
-}
-
-#if IS_ENABLED(CONFIG_NINTENDO_FF)
-static struct joycon_rumble_freq_data joycon_find_rumble_freq(u16 freq)
-{
- const size_t length = ARRAY_SIZE(joycon_rumble_frequencies);
- const struct joycon_rumble_freq_data *data = joycon_rumble_frequencies;
- int i = 0;
-
- if (freq > data[0].freq) {
- for (i = 1; i < length - 1; i++) {
- if (freq > data[i - 1].freq && freq <= data[i].freq)
- break;
- }
- }
-
- return data[i];
-}
-
-static struct joycon_rumble_amp_data joycon_find_rumble_amp(u16 amp)
-{
- const size_t length = ARRAY_SIZE(joycon_rumble_amplitudes);
- const struct joycon_rumble_amp_data *data = joycon_rumble_amplitudes;
- int i = 0;
-
- if (amp > data[0].amp) {
- for (i = 1; i < length - 1; i++) {
- if (amp > data[i - 1].amp && amp <= data[i].amp)
- break;
- }
- }
-
- return data[i];
-}
-
-static void joycon_encode_rumble(u8 *data, u16 freq_low, u16 freq_high, u16 amp)
-{
- struct joycon_rumble_freq_data freq_data_low;
- struct joycon_rumble_freq_data freq_data_high;
- struct joycon_rumble_amp_data amp_data;
-
- freq_data_low = joycon_find_rumble_freq(freq_low);
- freq_data_high = joycon_find_rumble_freq(freq_high);
- amp_data = joycon_find_rumble_amp(amp);
-
- data[0] = (freq_data_high.high >> 8) & 0xFF;
- data[1] = (freq_data_high.high & 0xFF) + amp_data.high;
- data[2] = freq_data_low.low + ((amp_data.low >> 8) & 0xFF);
- data[3] = amp_data.low & 0xFF;
-}
-
-static const u16 JOYCON_MAX_RUMBLE_HIGH_FREQ = 1253;
-static const u16 JOYCON_MIN_RUMBLE_HIGH_FREQ = 82;
-static const u16 JOYCON_MAX_RUMBLE_LOW_FREQ = 626;
-static const u16 JOYCON_MIN_RUMBLE_LOW_FREQ = 41;
-
-static void joycon_clamp_rumble_freqs(struct joycon_ctlr *ctlr)
-{
- unsigned long flags;
-
- spin_lock_irqsave(&ctlr->lock, flags);
- ctlr->rumble_ll_freq = clamp(ctlr->rumble_ll_freq,
- JOYCON_MIN_RUMBLE_LOW_FREQ,
- JOYCON_MAX_RUMBLE_LOW_FREQ);
- ctlr->rumble_lh_freq = clamp(ctlr->rumble_lh_freq,
- JOYCON_MIN_RUMBLE_HIGH_FREQ,
- JOYCON_MAX_RUMBLE_HIGH_FREQ);
- ctlr->rumble_rl_freq = clamp(ctlr->rumble_rl_freq,
- JOYCON_MIN_RUMBLE_LOW_FREQ,
- JOYCON_MAX_RUMBLE_LOW_FREQ);
- ctlr->rumble_rh_freq = clamp(ctlr->rumble_rh_freq,
- JOYCON_MIN_RUMBLE_HIGH_FREQ,
- JOYCON_MAX_RUMBLE_HIGH_FREQ);
- spin_unlock_irqrestore(&ctlr->lock, flags);
-}
-
-static int joycon_set_rumble(struct joycon_ctlr *ctlr, u16 amp_r, u16 amp_l,
- bool schedule_now)
-{
- u8 data[JC_RUMBLE_DATA_SIZE];
- u16 amp;
- u16 freq_r_low;
- u16 freq_r_high;
- u16 freq_l_low;
- u16 freq_l_high;
- unsigned long flags;
-
- spin_lock_irqsave(&ctlr->lock, flags);
- freq_r_low = ctlr->rumble_rl_freq;
- freq_r_high = ctlr->rumble_rh_freq;
- freq_l_low = ctlr->rumble_ll_freq;
- freq_l_high = ctlr->rumble_lh_freq;
- /* limit number of silent rumble packets to reduce traffic */
- if (amp_l != 0 || amp_r != 0)
- ctlr->rumble_zero_countdown = JC_RUMBLE_ZERO_AMP_PKT_CNT;
- spin_unlock_irqrestore(&ctlr->lock, flags);
-
- /* right joy-con */
- amp = amp_r * (u32)joycon_max_rumble_amp / 65535;
- joycon_encode_rumble(data + 4, freq_r_low, freq_r_high, amp);
-
- /* left joy-con */
- amp = amp_l * (u32)joycon_max_rumble_amp / 65535;
- joycon_encode_rumble(data, freq_l_low, freq_l_high, amp);
-
- spin_lock_irqsave(&ctlr->lock, flags);
- if (++ctlr->rumble_queue_head >= JC_RUMBLE_QUEUE_SIZE)
- ctlr->rumble_queue_head = 0;
- memcpy(ctlr->rumble_data[ctlr->rumble_queue_head], data,
- JC_RUMBLE_DATA_SIZE);
- spin_unlock_irqrestore(&ctlr->lock, flags);
-
- /* don't wait for the periodic send (reduces latency) */
- if (schedule_now)
- queue_work(ctlr->rumble_queue, &ctlr->rumble_worker);
-
- return 0;
-}
-
-static int joycon_play_effect(struct input_dev *dev, void *data,
- struct ff_effect *effect)
-{
- struct joycon_ctlr *ctlr = input_get_drvdata(dev);
-
- if (effect->type != FF_RUMBLE)
- return 0;
-
- return joycon_set_rumble(ctlr,
- effect->u.rumble.weak_magnitude,
- effect->u.rumble.strong_magnitude,
- true);
-}
-#endif /* IS_ENABLED(CONFIG_NINTENDO_FF) */
-
-static const unsigned int joycon_button_inputs_l[] = {
- BTN_SELECT, BTN_Z, BTN_THUMBL,
- BTN_TL, BTN_TL2,
- 0 /* 0 signals end of array */
-};
-
-static const unsigned int joycon_button_inputs_r[] = {
- BTN_START, BTN_MODE, BTN_THUMBR,
- BTN_SOUTH, BTN_EAST, BTN_NORTH, BTN_WEST,
- BTN_TR, BTN_TR2,
- 0 /* 0 signals end of array */
-};
-
-/* We report joy-con d-pad inputs as buttons and pro controller as a hat. */
-static const unsigned int joycon_dpad_inputs_jc[] = {
- BTN_DPAD_UP, BTN_DPAD_DOWN, BTN_DPAD_LEFT, BTN_DPAD_RIGHT,
-};
-
-static int joycon_input_create(struct joycon_ctlr *ctlr)
-{
- struct hid_device *hdev;
- const char *name;
- const char *imu_name;
- int ret;
- int i;
-
- hdev = ctlr->hdev;
-
- switch (hdev->product) {
- case USB_DEVICE_ID_NINTENDO_PROCON:
- name = "Nintendo Switch Pro Controller";
- imu_name = "Nintendo Switch Pro Controller IMU";
- break;
- case USB_DEVICE_ID_NINTENDO_CHRGGRIP:
- if (jc_type_has_left(ctlr)) {
- name = "Nintendo Switch Left Joy-Con (Grip)";
- imu_name = "Nintendo Switch Left Joy-Con IMU (Grip)";
- } else {
- name = "Nintendo Switch Right Joy-Con (Grip)";
- imu_name = "Nintendo Switch Right Joy-Con IMU (Grip)";
- }
- break;
- case USB_DEVICE_ID_NINTENDO_JOYCONL:
- name = "Nintendo Switch Left Joy-Con";
- imu_name = "Nintendo Switch Left Joy-Con IMU";
- break;
- case USB_DEVICE_ID_NINTENDO_JOYCONR:
- name = "Nintendo Switch Right Joy-Con";
- imu_name = "Nintendo Switch Right Joy-Con IMU";
- break;
- default: /* Should be impossible */
- hid_err(hdev, "Invalid hid product\n");
- return -EINVAL;
- }
-
- ctlr->input = devm_input_allocate_device(&hdev->dev);
- if (!ctlr->input)
- return -ENOMEM;
- ctlr->input->id.bustype = hdev->bus;
- ctlr->input->id.vendor = hdev->vendor;
- ctlr->input->id.product = hdev->product;
- ctlr->input->id.version = hdev->version;
- ctlr->input->uniq = ctlr->mac_addr_str;
- ctlr->input->name = name;
- input_set_drvdata(ctlr->input, ctlr);
-
- /* set up sticks and buttons */
- if (jc_type_has_left(ctlr)) {
- input_set_abs_params(ctlr->input, ABS_X,
- -JC_MAX_STICK_MAG, JC_MAX_STICK_MAG,
- JC_STICK_FUZZ, JC_STICK_FLAT);
- input_set_abs_params(ctlr->input, ABS_Y,
- -JC_MAX_STICK_MAG, JC_MAX_STICK_MAG,
- JC_STICK_FUZZ, JC_STICK_FLAT);
-
- for (i = 0; joycon_button_inputs_l[i] > 0; i++)
- input_set_capability(ctlr->input, EV_KEY,
- joycon_button_inputs_l[i]);
-
- /* configure d-pad differently for joy-con vs pro controller */
- if (hdev->product != USB_DEVICE_ID_NINTENDO_PROCON) {
- for (i = 0; joycon_dpad_inputs_jc[i] > 0; i++)
- input_set_capability(ctlr->input, EV_KEY,
- joycon_dpad_inputs_jc[i]);
- } else {
- input_set_abs_params(ctlr->input, ABS_HAT0X,
- -JC_MAX_DPAD_MAG, JC_MAX_DPAD_MAG,
- JC_DPAD_FUZZ, JC_DPAD_FLAT);
- input_set_abs_params(ctlr->input, ABS_HAT0Y,
- -JC_MAX_DPAD_MAG, JC_MAX_DPAD_MAG,
- JC_DPAD_FUZZ, JC_DPAD_FLAT);
- }
- }
- if (jc_type_has_right(ctlr)) {
- input_set_abs_params(ctlr->input, ABS_RX,
- -JC_MAX_STICK_MAG, JC_MAX_STICK_MAG,
- JC_STICK_FUZZ, JC_STICK_FLAT);
- input_set_abs_params(ctlr->input, ABS_RY,
- -JC_MAX_STICK_MAG, JC_MAX_STICK_MAG,
- JC_STICK_FUZZ, JC_STICK_FLAT);
-
- for (i = 0; joycon_button_inputs_r[i] > 0; i++)
- input_set_capability(ctlr->input, EV_KEY,
- joycon_button_inputs_r[i]);
- }
-
- /* Let's report joy-con S triggers separately */
- if (hdev->product == USB_DEVICE_ID_NINTENDO_JOYCONL) {
- input_set_capability(ctlr->input, EV_KEY, BTN_TR);
- input_set_capability(ctlr->input, EV_KEY, BTN_TR2);
- } else if (hdev->product == USB_DEVICE_ID_NINTENDO_JOYCONR) {
- input_set_capability(ctlr->input, EV_KEY, BTN_TL);
- input_set_capability(ctlr->input, EV_KEY, BTN_TL2);
- }
-
-#if IS_ENABLED(CONFIG_NINTENDO_FF)
- /* set up rumble */
- input_set_capability(ctlr->input, EV_FF, FF_RUMBLE);
- input_ff_create_memless(ctlr->input, NULL, joycon_play_effect);
- ctlr->rumble_ll_freq = JC_RUMBLE_DFLT_LOW_FREQ;
- ctlr->rumble_lh_freq = JC_RUMBLE_DFLT_HIGH_FREQ;
- ctlr->rumble_rl_freq = JC_RUMBLE_DFLT_LOW_FREQ;
- ctlr->rumble_rh_freq = JC_RUMBLE_DFLT_HIGH_FREQ;
- joycon_clamp_rumble_freqs(ctlr);
- joycon_set_rumble(ctlr, 0, 0, false);
- ctlr->rumble_msecs = jiffies_to_msecs(jiffies);
-#endif
-
- ret = input_register_device(ctlr->input);
- if (ret)
- return ret;
-
- /* configure the imu input device */
- ctlr->imu_input = devm_input_allocate_device(&hdev->dev);
- if (!ctlr->imu_input)
- return -ENOMEM;
-
- ctlr->imu_input->id.bustype = hdev->bus;
- ctlr->imu_input->id.vendor = hdev->vendor;
- ctlr->imu_input->id.product = hdev->product;
- ctlr->imu_input->id.version = hdev->version;
- ctlr->imu_input->uniq = ctlr->mac_addr_str;
- ctlr->imu_input->name = imu_name;
- input_set_drvdata(ctlr->imu_input, ctlr);
-
- /* configure imu axes */
- input_set_abs_params(ctlr->imu_input, ABS_X,
- -JC_IMU_MAX_ACCEL_MAG, JC_IMU_MAX_ACCEL_MAG,
- JC_IMU_ACCEL_FUZZ, JC_IMU_ACCEL_FLAT);
- input_set_abs_params(ctlr->imu_input, ABS_Y,
- -JC_IMU_MAX_ACCEL_MAG, JC_IMU_MAX_ACCEL_MAG,
- JC_IMU_ACCEL_FUZZ, JC_IMU_ACCEL_FLAT);
- input_set_abs_params(ctlr->imu_input, ABS_Z,
- -JC_IMU_MAX_ACCEL_MAG, JC_IMU_MAX_ACCEL_MAG,
- JC_IMU_ACCEL_FUZZ, JC_IMU_ACCEL_FLAT);
- input_abs_set_res(ctlr->imu_input, ABS_X, JC_IMU_ACCEL_RES_PER_G);
- input_abs_set_res(ctlr->imu_input, ABS_Y, JC_IMU_ACCEL_RES_PER_G);
- input_abs_set_res(ctlr->imu_input, ABS_Z, JC_IMU_ACCEL_RES_PER_G);
-
- input_set_abs_params(ctlr->imu_input, ABS_RX,
- -JC_IMU_MAX_GYRO_MAG, JC_IMU_MAX_GYRO_MAG,
- JC_IMU_GYRO_FUZZ, JC_IMU_GYRO_FLAT);
- input_set_abs_params(ctlr->imu_input, ABS_RY,
- -JC_IMU_MAX_GYRO_MAG, JC_IMU_MAX_GYRO_MAG,
- JC_IMU_GYRO_FUZZ, JC_IMU_GYRO_FLAT);
- input_set_abs_params(ctlr->imu_input, ABS_RZ,
- -JC_IMU_MAX_GYRO_MAG, JC_IMU_MAX_GYRO_MAG,
- JC_IMU_GYRO_FUZZ, JC_IMU_GYRO_FLAT);
-
- input_abs_set_res(ctlr->imu_input, ABS_RX, JC_IMU_GYRO_RES_PER_DPS);
- input_abs_set_res(ctlr->imu_input, ABS_RY, JC_IMU_GYRO_RES_PER_DPS);
- input_abs_set_res(ctlr->imu_input, ABS_RZ, JC_IMU_GYRO_RES_PER_DPS);
-
- __set_bit(EV_MSC, ctlr->imu_input->evbit);
- __set_bit(MSC_TIMESTAMP, ctlr->imu_input->mscbit);
- __set_bit(INPUT_PROP_ACCELEROMETER, ctlr->imu_input->propbit);
-
- ret = input_register_device(ctlr->imu_input);
- if (ret)
- return ret;
-
- return 0;
-}
-
-static int joycon_player_led_brightness_set(struct led_classdev *led,
- enum led_brightness brightness)
-{
- struct device *dev = led->dev->parent;
- struct hid_device *hdev = to_hid_device(dev);
- struct joycon_ctlr *ctlr;
- int val = 0;
- int i;
- int ret;
- int num;
-
- ctlr = hid_get_drvdata(hdev);
- if (!ctlr) {
- hid_err(hdev, "No controller data\n");
- return -ENODEV;
- }
-
- /* determine which player led this is */
- for (num = 0; num < JC_NUM_LEDS; num++) {
- if (&ctlr->leds[num] == led)
- break;
- }
- if (num >= JC_NUM_LEDS)
- return -EINVAL;
-
- mutex_lock(&ctlr->output_mutex);
- for (i = 0; i < JC_NUM_LEDS; i++) {
- if (i == num)
- val |= brightness << i;
- else
- val |= ctlr->leds[i].brightness << i;
- }
- ret = joycon_set_player_leds(ctlr, 0, val);
- mutex_unlock(&ctlr->output_mutex);
-
- return ret;
-}
-
-static int joycon_home_led_brightness_set(struct led_classdev *led,
- enum led_brightness brightness)
-{
- struct device *dev = led->dev->parent;
- struct hid_device *hdev = to_hid_device(dev);
- struct joycon_ctlr *ctlr;
- struct joycon_subcmd_request *req;
- u8 buffer[sizeof(*req) + 5] = { 0 };
- u8 *data;
- int ret;
-
- ctlr = hid_get_drvdata(hdev);
- if (!ctlr) {
- hid_err(hdev, "No controller data\n");
- return -ENODEV;
- }
-
- req = (struct joycon_subcmd_request *)buffer;
- req->subcmd_id = JC_SUBCMD_SET_HOME_LIGHT;
- data = req->data;
- data[0] = 0x01;
- data[1] = brightness << 4;
- data[2] = brightness | (brightness << 4);
- data[3] = 0x11;
- data[4] = 0x11;
-
- hid_dbg(hdev, "setting home led brightness\n");
- mutex_lock(&ctlr->output_mutex);
- ret = joycon_send_subcmd(ctlr, req, 5, HZ/4);
- mutex_unlock(&ctlr->output_mutex);
-
- return ret;
-}
-
-static DEFINE_MUTEX(joycon_input_num_mutex);
-static int joycon_leds_create(struct joycon_ctlr *ctlr)
-{
- struct hid_device *hdev = ctlr->hdev;
- struct device *dev = &hdev->dev;
- const char *d_name = dev_name(dev);
- struct led_classdev *led;
- char *name;
- int ret = 0;
- int i;
- static int input_num = 1;
-
- /* Set the default controller player leds based on controller number */
- mutex_lock(&joycon_input_num_mutex);
- mutex_lock(&ctlr->output_mutex);
- ret = joycon_set_player_leds(ctlr, 0, 0xF >> (4 - input_num));
- if (ret)
- hid_warn(ctlr->hdev, "Failed to set leds; ret=%d\n", ret);
- mutex_unlock(&ctlr->output_mutex);
-
- /* configure the player LEDs */
- for (i = 0; i < JC_NUM_LEDS; i++) {
- name = devm_kasprintf(dev, GFP_KERNEL, "%s:%s:%s",
- d_name,
- "green",
- joycon_player_led_names[i]);
- if (!name)
- return -ENOMEM;
-
- led = &ctlr->leds[i];
- led->name = name;
- led->brightness = ((i + 1) <= input_num) ? 1 : 0;
- led->max_brightness = 1;
- led->brightness_set_blocking =
- joycon_player_led_brightness_set;
- led->flags = LED_CORE_SUSPENDRESUME | LED_HW_PLUGGABLE;
-
- ret = devm_led_classdev_register(&hdev->dev, led);
- if (ret) {
- hid_err(hdev, "Failed registering %s LED\n", led->name);
- return ret;
- }
- }
-
- if (++input_num > 4)
- input_num = 1;
- mutex_unlock(&joycon_input_num_mutex);
-
- /* configure the home LED */
- if (jc_type_has_right(ctlr)) {
- name = devm_kasprintf(dev, GFP_KERNEL, "%s:%s:%s",
- d_name,
- "blue",
- LED_FUNCTION_PLAYER5);
- if (!name)
- return -ENOMEM;
-
- led = &ctlr->home_led;
- led->name = name;
- led->brightness = 0;
- led->max_brightness = 0xF;
- led->brightness_set_blocking = joycon_home_led_brightness_set;
- led->flags = LED_CORE_SUSPENDRESUME | LED_HW_PLUGGABLE;
- ret = devm_led_classdev_register(&hdev->dev, led);
- if (ret) {
- hid_err(hdev, "Failed registering home led\n");
- return ret;
- }
- /* Set the home LED to 0 as default state */
- ret = joycon_home_led_brightness_set(led, 0);
- if (ret) {
- hid_err(hdev, "Failed to set home LED dflt; ret=%d\n",
- ret);
- return ret;
- }
- }
-
- return 0;
-}
-
-static int joycon_battery_get_property(struct power_supply *supply,
- enum power_supply_property prop,
- union power_supply_propval *val)
-{
- struct joycon_ctlr *ctlr = power_supply_get_drvdata(supply);
- unsigned long flags;
- int ret = 0;
- u8 capacity;
- bool charging;
- bool powered;
-
- spin_lock_irqsave(&ctlr->lock, flags);
- capacity = ctlr->battery_capacity;
- charging = ctlr->battery_charging;
- powered = ctlr->host_powered;
- spin_unlock_irqrestore(&ctlr->lock, flags);
-
- switch (prop) {
- case POWER_SUPPLY_PROP_PRESENT:
- val->intval = 1;
- break;
- case POWER_SUPPLY_PROP_SCOPE:
- val->intval = POWER_SUPPLY_SCOPE_DEVICE;
- break;
- case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
- val->intval = capacity;
- break;
- case POWER_SUPPLY_PROP_STATUS:
- if (charging)
- val->intval = POWER_SUPPLY_STATUS_CHARGING;
- else if (capacity == POWER_SUPPLY_CAPACITY_LEVEL_FULL &&
- powered)
- val->intval = POWER_SUPPLY_STATUS_FULL;
- else
- val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
-}
-
-static enum power_supply_property joycon_battery_props[] = {
- POWER_SUPPLY_PROP_PRESENT,
- POWER_SUPPLY_PROP_CAPACITY_LEVEL,
- POWER_SUPPLY_PROP_SCOPE,
- POWER_SUPPLY_PROP_STATUS,
-};
-
-static int joycon_power_supply_create(struct joycon_ctlr *ctlr)
-{
- struct hid_device *hdev = ctlr->hdev;
- struct power_supply_config supply_config = { .drv_data = ctlr, };
- const char * const name_fmt = "nintendo_switch_controller_battery_%s";
- int ret = 0;
-
- /* Set initially to unknown before receiving first input report */
- ctlr->battery_capacity = POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN;
-
- /* Configure the battery's description */
- ctlr->battery_desc.properties = joycon_battery_props;
- ctlr->battery_desc.num_properties =
- ARRAY_SIZE(joycon_battery_props);
- ctlr->battery_desc.get_property = joycon_battery_get_property;
- ctlr->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
- ctlr->battery_desc.use_for_apm = 0;
- ctlr->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
- name_fmt,
- dev_name(&hdev->dev));
- if (!ctlr->battery_desc.name)
- return -ENOMEM;
-
- ctlr->battery = devm_power_supply_register(&hdev->dev,
- &ctlr->battery_desc,
- &supply_config);
- if (IS_ERR(ctlr->battery)) {
- ret = PTR_ERR(ctlr->battery);
- hid_err(hdev, "Failed to register battery; ret=%d\n", ret);
- return ret;
- }
-
- return power_supply_powers(ctlr->battery, &hdev->dev);
-}
-
-static int joycon_read_info(struct joycon_ctlr *ctlr)
-{
- int ret;
- int i;
- int j;
- struct joycon_subcmd_request req = { 0 };
- struct joycon_input_report *report;
-
- req.subcmd_id = JC_SUBCMD_REQ_DEV_INFO;
- ret = joycon_send_subcmd(ctlr, &req, 0, HZ);
- if (ret) {
- hid_err(ctlr->hdev, "Failed to get joycon info; ret=%d\n", ret);
- return ret;
- }
-
- report = (struct joycon_input_report *)ctlr->input_buf;
-
- for (i = 4, j = 0; j < 6; i++, j++)
- ctlr->mac_addr[j] = report->subcmd_reply.data[i];
-
- ctlr->mac_addr_str = devm_kasprintf(&ctlr->hdev->dev, GFP_KERNEL,
- "%02X:%02X:%02X:%02X:%02X:%02X",
- ctlr->mac_addr[0],
- ctlr->mac_addr[1],
- ctlr->mac_addr[2],
- ctlr->mac_addr[3],
- ctlr->mac_addr[4],
- ctlr->mac_addr[5]);
- if (!ctlr->mac_addr_str)
- return -ENOMEM;
- hid_info(ctlr->hdev, "controller MAC = %s\n", ctlr->mac_addr_str);
-
- /* Retrieve the type so we can distinguish for charging grip */
- ctlr->ctlr_type = report->subcmd_reply.data[2];
-
- return 0;
-}
-
-/* Common handler for parsing inputs */
-static int joycon_ctlr_read_handler(struct joycon_ctlr *ctlr, u8 *data,
- int size)
-{
- if (data[0] == JC_INPUT_SUBCMD_REPLY || data[0] == JC_INPUT_IMU_DATA ||
- data[0] == JC_INPUT_MCU_DATA) {
- if (size >= 12) /* make sure it contains the input report */
- joycon_parse_report(ctlr,
- (struct joycon_input_report *)data);
- }
-
- return 0;
-}
-
-static int joycon_ctlr_handle_event(struct joycon_ctlr *ctlr, u8 *data,
- int size)
-{
- int ret = 0;
- bool match = false;
- struct joycon_input_report *report;
-
- if (unlikely(mutex_is_locked(&ctlr->output_mutex)) &&
- ctlr->msg_type != JOYCON_MSG_TYPE_NONE) {
- switch (ctlr->msg_type) {
- case JOYCON_MSG_TYPE_USB:
- if (size < 2)
- break;
- if (data[0] == JC_INPUT_USB_RESPONSE &&
- data[1] == ctlr->usb_ack_match)
- match = true;
- break;
- case JOYCON_MSG_TYPE_SUBCMD:
- if (size < sizeof(struct joycon_input_report) ||
- data[0] != JC_INPUT_SUBCMD_REPLY)
- break;
- report = (struct joycon_input_report *)data;
- if (report->subcmd_reply.id == ctlr->subcmd_ack_match)
- match = true;
- break;
- default:
- break;
- }
-
- if (match) {
- memcpy(ctlr->input_buf, data,
- min(size, (int)JC_MAX_RESP_SIZE));
- ctlr->msg_type = JOYCON_MSG_TYPE_NONE;
- ctlr->received_resp = true;
- wake_up(&ctlr->wait);
-
- /* This message has been handled */
- return 1;
- }
- }
-
- if (ctlr->ctlr_state == JOYCON_CTLR_STATE_READ)
- ret = joycon_ctlr_read_handler(ctlr, data, size);
-
- return ret;
-}
static int nintendo_hid_event(struct hid_device *hdev,
struct hid_report *report, u8 *raw_data, int size)
{
- struct joycon_ctlr *ctlr = hid_get_drvdata(hdev);
+#ifdef CONFIG_HID_NINTENDO_SWITCH
+ enum nintendo_driver *driver = hid_get_drvdata(hdev);
- if (size < 1)
- return -EINVAL;
-
- return joycon_ctlr_handle_event(ctlr, raw_data, size);
+ if (*driver == NINTENDO_SWITCH)
+ return switch_hid_event(hdev, report, raw_data, size);
+#endif
+ unreachable();
}
static int nintendo_hid_probe(struct hid_device *hdev,
- const struct hid_device_id *id)
+ const struct hid_device_id *id)
{
- int ret;
- struct joycon_ctlr *ctlr;
-
- hid_dbg(hdev, "probe - start\n");
-
- ctlr = devm_kzalloc(&hdev->dev, sizeof(*ctlr), GFP_KERNEL);
- if (!ctlr) {
- ret = -ENOMEM;
- goto err;
- }
-
- ctlr->hdev = hdev;
- ctlr->ctlr_state = JOYCON_CTLR_STATE_INIT;
- ctlr->rumble_queue_head = JC_RUMBLE_QUEUE_SIZE - 1;
- ctlr->rumble_queue_tail = 0;
- hid_set_drvdata(hdev, ctlr);
- mutex_init(&ctlr->output_mutex);
- init_waitqueue_head(&ctlr->wait);
- spin_lock_init(&ctlr->lock);
- ctlr->rumble_queue = alloc_workqueue("hid-nintendo-rumble_wq",
- WQ_FREEZABLE | WQ_MEM_RECLAIM, 0);
- INIT_WORK(&ctlr->rumble_worker, joycon_rumble_worker);
-
- ret = hid_parse(hdev);
- if (ret) {
- hid_err(hdev, "HID parse failed\n");
- goto err_wq;
- }
-
- /*
- * Patch the hw version of pro controller/joycons, so applications can
- * distinguish between the default HID mappings and the mappings defined
- * by the Linux game controller spec. This is important for the SDL2
- * library, which has a game controller database, which uses device ids
- * in combination with version as a key.
- */
- hdev->version |= 0x8000;
-
- ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
- if (ret) {
- hid_err(hdev, "HW start failed\n");
- goto err_wq;
- }
-
- ret = hid_hw_open(hdev);
- if (ret) {
- hid_err(hdev, "cannot start hardware I/O\n");
- goto err_stop;
- }
-
- hid_device_io_start(hdev);
-
- /* Initialize the controller */
- mutex_lock(&ctlr->output_mutex);
- /* if handshake command fails, assume ble pro controller */
- if ((jc_type_is_procon(ctlr) || jc_type_is_chrggrip(ctlr)) &&
- !joycon_send_usb(ctlr, JC_USB_CMD_HANDSHAKE, HZ)) {
- hid_dbg(hdev, "detected USB controller\n");
- /* set baudrate for improved latency */
- ret = joycon_send_usb(ctlr, JC_USB_CMD_BAUDRATE_3M, HZ);
- if (ret) {
- hid_err(hdev, "Failed to set baudrate; ret=%d\n", ret);
- goto err_mutex;
- }
- /* handshake */
- ret = joycon_send_usb(ctlr, JC_USB_CMD_HANDSHAKE, HZ);
- if (ret) {
- hid_err(hdev, "Failed handshake; ret=%d\n", ret);
- goto err_mutex;
- }
- /*
- * Set no timeout (to keep controller in USB mode).
- * This doesn't send a response, so ignore the timeout.
- */
- joycon_send_usb(ctlr, JC_USB_CMD_NO_TIMEOUT, HZ/10);
- } else if (jc_type_is_chrggrip(ctlr)) {
- hid_err(hdev, "Failed charging grip handshake\n");
- ret = -ETIMEDOUT;
- goto err_mutex;
- }
-
- /* get controller calibration data, and parse it */
- ret = joycon_request_calibration(ctlr);
- if (ret) {
- /*
- * We can function with default calibration, but it may be
- * inaccurate. Provide a warning, and continue on.
- */
- hid_warn(hdev, "Analog stick positions may be inaccurate\n");
- }
-
- /* get IMU calibration data, and parse it */
- ret = joycon_request_imu_calibration(ctlr);
- if (ret) {
- /*
- * We can function with default calibration, but it may be
- * inaccurate. Provide a warning, and continue on.
- */
- hid_warn(hdev, "Unable to read IMU calibration data\n");
- }
-
- /* Set the reporting mode to 0x30, which is the full report mode */
- ret = joycon_set_report_mode(ctlr);
- if (ret) {
- hid_err(hdev, "Failed to set report mode; ret=%d\n", ret);
- goto err_mutex;
- }
-
- /* Enable rumble */
- ret = joycon_enable_rumble(ctlr);
- if (ret) {
- hid_err(hdev, "Failed to enable rumble; ret=%d\n", ret);
- goto err_mutex;
- }
-
- /* Enable the IMU */
- ret = joycon_enable_imu(ctlr);
- if (ret) {
- hid_err(hdev, "Failed to enable the IMU; ret=%d\n", ret);
- goto err_mutex;
- }
-
- ret = joycon_read_info(ctlr);
- if (ret) {
- hid_err(hdev, "Failed to retrieve controller info; ret=%d\n",
- ret);
- goto err_mutex;
- }
-
- mutex_unlock(&ctlr->output_mutex);
-
- /* Initialize the leds */
- ret = joycon_leds_create(ctlr);
- if (ret) {
- hid_err(hdev, "Failed to create leds; ret=%d\n", ret);
- goto err_close;
- }
-
- /* Initialize the battery power supply */
- ret = joycon_power_supply_create(ctlr);
- if (ret) {
- hid_err(hdev, "Failed to create power_supply; ret=%d\n", ret);
- goto err_close;
- }
-
- ret = joycon_input_create(ctlr);
- if (ret) {
- hid_err(hdev, "Failed to create input device; ret=%d\n", ret);
- goto err_close;
- }
-
- ctlr->ctlr_state = JOYCON_CTLR_STATE_READ;
+ int ret = 0;
- hid_dbg(hdev, "probe - success\n");
- return 0;
+#ifdef CONFIG_HID_NINTENDO_SWITCH
+ ret = switch_hid_probe(hdev, id);
+#endif
-err_mutex:
- mutex_unlock(&ctlr->output_mutex);
-err_close:
- hid_hw_close(hdev);
-err_stop:
- hid_hw_stop(hdev);
-err_wq:
- destroy_workqueue(ctlr->rumble_queue);
-err:
- hid_err(hdev, "probe - fail = %d\n", ret);
return ret;
}
static void nintendo_hid_remove(struct hid_device *hdev)
{
- struct joycon_ctlr *ctlr = hid_get_drvdata(hdev);
- unsigned long flags;
+#ifdef CONFIG_HID_NINTENDO_SWITCH
+ enum nintendo_driver *driver = hid_get_drvdata(hdev);
- hid_dbg(hdev, "remove\n");
-
- /* Prevent further attempts at sending subcommands. */
- spin_lock_irqsave(&ctlr->lock, flags);
- ctlr->ctlr_state = JOYCON_CTLR_STATE_REMOVED;
- spin_unlock_irqrestore(&ctlr->lock, flags);
-
- destroy_workqueue(ctlr->rumble_queue);
-
- hid_hw_close(hdev);
- hid_hw_stop(hdev);
+ if (*driver == NINTENDO_SWITCH)
+ switch_hid_remove(hdev);
+#endif
}
static const struct hid_device_id nintendo_hid_devices[] = {
+#ifdef CONFIG_HID_NINTENDO_SWITCH
{ HID_USB_DEVICE(USB_VENDOR_ID_NINTENDO,
USB_DEVICE_ID_NINTENDO_PROCON) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
@@ -2300,6 +59,8 @@ static const struct hid_device_id nintendo_hid_devices[] = {
USB_DEVICE_ID_NINTENDO_JOYCONL) },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
USB_DEVICE_ID_NINTENDO_JOYCONR) },
+#endif
+
{ }
};
MODULE_DEVICE_TABLE(hid, nintendo_hid_devices);
@@ -2314,6 +75,6 @@ static struct hid_driver nintendo_hid_driver = {
module_hid_driver(nintendo_hid_driver);
MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Daniel J. Ogorchock <djogorchock@...il.com>");
-MODULE_DESCRIPTION("Driver for Nintendo Switch Controllers");
+MODULE_AUTHOR("Emmanuel Gil Peyrot <linkmauve@...kmauve.fr>");
+MODULE_DESCRIPTION("Driver for Nintendo controllers");
diff --git a/drivers/hid/hid-nintendo.h b/drivers/hid/hid-nintendo.h
new file mode 100644
index 000000000000..56bb7e800cc2
--- /dev/null
+++ b/drivers/hid/hid-nintendo.h
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <linux/kernel.h>
+#include <linux/hid.h>
+
+/* Every HID drvdata supported by this driver MUST start with this
+ * enum, so that dispatch can work properly. */
+enum nintendo_driver {
+ NINTENDO_SWITCH,
+};
+
+int switch_hid_event(struct hid_device *hdev,
+ struct hid_report *report, u8 *raw_data, int size);
+int switch_hid_probe(struct hid_device *hdev,
+ const struct hid_device_id *id);
+void switch_hid_remove(struct hid_device *hdev);
--
2.33.1
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