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[23.128.96.18]) by mx.google.com with ESMTP id lb3si26246841ejc.204.2021.10.19.04.07.30; Tue, 19 Oct 2021 04:08:02 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235411AbhJSLGn (ORCPT + 99 others); Tue, 19 Oct 2021 07:06:43 -0400 Received: from 82-65-109-163.subs.proxad.net ([82.65.109.163]:52270 "EHLO luna.linkmauve.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235377AbhJSLGk (ORCPT ); Tue, 19 Oct 2021 07:06:40 -0400 Received: by luna.linkmauve.fr (Postfix, from userid 1000) id D53A0F40C33; Tue, 19 Oct 2021 13:04:22 +0200 (CEST) From: Emmanuel Gil Peyrot To: Jiri Kosina Cc: Emmanuel Gil Peyrot , linux-input@vger.kernel.org, Ash Logan , =?UTF-8?q?Jonathan=20Neusch=C3=A4fer?= , =?UTF-8?q?Barnab=C3=A1s=20P=C5=91cze?= , Benjamin Tissoires , linux-kernel@vger.kernel.org, "Daniel J . Ogorchock" Subject: [PATCH v4 1/5] HID: nintendo: split switch support into its own file Date: Tue, 19 Oct 2021 13:04:14 +0200 Message-Id: <20211019110418.26874-2-linkmauve@linkmauve.fr> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211019110418.26874-1-linkmauve@linkmauve.fr> References: <20210519085924.1636-1-linkmauve@linkmauve.fr> <20211019110418.26874-1-linkmauve@linkmauve.fr> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This allows for other controllers to be supported, which do not require the same set of features. Signed-off-by: Emmanuel Gil Peyrot --- drivers/hid/Kconfig | 24 +- drivers/hid/Makefile | 1 + .../{hid-nintendo.c => hid-nintendo-switch.c} | 43 +- drivers/hid/hid-nintendo.c | 2285 +---------------- drivers/hid/hid-nintendo.h | 16 + 5 files changed, 63 insertions(+), 2306 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..79beccefd431 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 +749,17 @@ 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" + 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 #include #include @@ -31,7 +32,6 @@ #include #include #include -#include #include #include @@ -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 "); -MODULE_DESCRIPTION("Driver for Nintendo Switch Controllers"); - diff --git a/drivers/hid/hid-nintendo.c b/drivers/hid/hid-nintendo.c index c4270499fc6f..9d67c7b2ac75 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 - * - * 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 */ #include "hid-ids.h" -#include -#include +#include "hid-nintendo.h" #include #include #include #include -#include -#include #include -#include -#include - -/* - * 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); - - if (size < 1) - return -EINVAL; + enum nintendo_driver *driver = hid_get_drvdata(hdev); - return joycon_ctlr_handle_event(ctlr, raw_data, size); +#ifdef CONFIG_HID_NINTENDO_SWITCH + 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; - - 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 "); -MODULE_DESCRIPTION("Driver for Nintendo Switch Controllers"); +MODULE_AUTHOR("Emmanuel Gil Peyrot "); +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 +#include + +/* 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