On Aug 30 2016 or thereabouts, Roland Singer wrote: > Hi Benjamin, > > thank you for your hints and your thoughts about using hidraw! > I must admit, that you're absolutely right and this really doesn't > belong into the kernel. I'll stop the development of the OpenRazer > kernel driver and work on an userspace hidraw implementation. Well, you should still keep your current work at hand. If you find some features useful at boot (like disable the LEDs, enable macro keys, Fn lock or anything else that doesn't require a user-space API), I'd be happy to review a patch for these. > > I mentioned your thoughts here in our Github discussion: > https://github.com/terrycain/razer-drivers/issues/29#issuecomment-243380127 Thanks! Cheers, Benjamin > > Cheers, > Roland > > > Am 29.08.2016 um 17:46 schrieb Benjamin Tissoires: > > Hi Roland, > > > > On Aug 26 2016 or thereabouts, Roland Singer wrote: > >> From: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> > >> This driver adds support for Razer devices. It supports custom keyboard > >> and laptop lightning modes, special macro keys and various settings. > >> It has been tested with the Razer Blade 14 2016 laptop, > >> Razer Blade Stealth 2016 laptop and the BlackWidow Chroma keyboard. > >> > >> It supports brightness control, lid logo control, FN mode control, > >> all lighting modes, set custom key colors and macro keys. > >> > >> Signed-off-by: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> --- > >> This driver is the initial release and will be extended with further > >> Razer device support. Common functionalities have been extracted > >> to the razer-common module. > >> This driver belongs to the new OpenRazer Project, which also provides > >> userland tools to configure and handle Razer devices. > >> Reference: https://github.com/openrazer > > > > I saw your other email, but I still wants to make some high-level review > > so that you don't spend too much time in code you will need to remove. > > > > So here they come: > > Generally, it is better to keep the kernel interface to a minimum. It's > > OK to enable macro keys from the kernel, but setting the color of the > > keyboard is something which should be done IMO in userspace only through > > hidraw. > > > > The reasons are: > > - maintaining a kernel API is a pain > > - you basically can't change it while it's there given that you might > > have users using it > > - roccat used to have a kernel API, and the latest userspace version > > of the tool went away from this given that it was too much of a pain > > and using hidraw allows a lot more flexibility > > - we have standard API for LED, and you are not using them > > - add some more which would convince you :) > > > > Please have a look at what hidraw offers and think twice before adding a > > sysfs API for a functionality (I'll give you my ideas below). You can > > see what we are doing for Logitech and some others in libratbag > > (github.com/libratbag/libratbag) or what roccat (the open project, not > > the company) did. > > > >> --- > >> diff --git a/Documentation/ABI/testing/sysfs-driver-hid-razer b/Documentation/ABI/testing/sysfs-driver-hid-razer > >> new file mode 100644 > >> index 0000000..594ca18 > >> --- /dev/null > >> +++ b/Documentation/ABI/testing/sysfs-driver-hid-razer > >> @@ -0,0 +1,190 @@ > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/device_type > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: Returns a friendly device type string. > >> + This file is readonly. > >> +Users: https://github.com/openrazer > > > > Do we need that? (can't this be appended to the device name or something > > similar) > > > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/get_serial > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: Returns the serial number from the device as string. > >> + This file is readonly. > >> +Users: https://github.com/openrazer > >> + > > > > This would fit in the .uniq field of struct input for instance. > > > > Plus the name is wrong. "serial" is better. > > > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/get_firmware_version > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: Returns the firmware version from the device as string. > >> + This file is readonly. > >> +Users: https://github.com/openrazer > > > > Usually we just output it in the dmesg. If your tool needs to retrieve > > it, you have the request handy in userspace, so there might not be a > > strong need here either. > > > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/brightness > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: When read, this file returns the brightness value from 0-255. > >> + When written, this file sets the brightness to the ASCII number > >> + written to this file. Values from 0-255. > >> + This file is optional and exists if the device supports this. > >> +Users: https://github.com/openrazer > > > > Please refrain from using custom sysfs when dealing with LEDs. We have > > the kernel LED API, which is basic, but it should be sufficient for most > > needs. > > If you need to do more fancy configurations, then maybe this belongs to > > userspace. > > > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/fn_mode > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: When read, this file returns the current set FN mode. > >> + When written, this file sets the FN mode to the ASCII number > >> + written to this file. > >> + > >> + ASCII VALUE DESCRIPTION > >> + 0 The F-keys work as normal F-keys > >> + 1 The F-keys act as if the FN key is held > >> + > >> + This file is optional and exists if the device supports this. > >> +Users: https://github.com/openrazer > > > > I'd keep this one, or I would let userspace set the expected fn mode at login. > > > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/set_logo > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: Sets the logo lighting state to the ASCII number written to this file. > >> + > >> + ASCII VALUE STATE > >> + 0 off > >> + 1 on > >> + > >> + This file is writeonly. > >> + This file is optional and exists if the device supports this. > >> +Users: https://github.com/openrazer > > > > Definitively userspace thingy. I mean, the API. I would be happy if you > > set a specific mode in the driver at probe to not annoy users using the > > VT only. > > > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/set_key_colors > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: Set the colors of all keys of the keyboard. 3 bytes per color. > >> + This file is writeonly. > >> + This file is optional and exists if the device supports this. > >> +Users: https://github.com/openrazer > > > > If you need, use three kernel LED api. > > But honestly, do you need to set this at boot in the kernel? If your > > tool is required to change a setting, that's a good sign that the > > parameter should not be in the kernel. > > > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/get_key_rows > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: Returns the amount of key rows as number. > >> + This file is readonly. > >> + This file is optional and exists if the device supports this. > >> +Users: https://github.com/openrazer > > > > This one and the one after seems tightly linked to the LED setting and > > should IMO be done in userspace. > > > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/get_key_columns > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: Returns the amount of key columns as number. > >> + This file is readonly. > >> + This file is optional and exists if the device supports this. > >> +Users: https://github.com/openrazer > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/mode_none > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: When written to, disables keyboard effects / turns the keyboard LEDs off. > >> + This file is writeonly. > >> + This file is optional and exists if the device supports this. > >> +Users: https://github.com/openrazer > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/mode_static > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: Set the keyboard to static mode when 3 RGB bytes are written. > >> + This file is writeonly. > >> + This file is optional and exists if the device supports this. > >> +Users: https://github.com/openrazer > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/mode_custom > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: Sets the keyboard to custom mode whenever the file is written to. > >> + Custom colors previously set with set_key_colors are shown. > >> + This file is writeonly. > >> + This file is optional and exists if the device supports this. > >> +Users: https://github.com/openrazer > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/mode_wave > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: Sets the keyboard to wave mode. > >> + > >> + ASCII VALUE DESCRIPTION > >> + 1 wave effect is displayed moving left across the keyboard. > >> + 2 wave effect is displayed moving right across the keyboard. > >> + > >> + This file is writeonly. > >> + This file is optional and exists if the device supports this. > >> +Users: https://github.com/openrazer > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/mode_spectrum > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: Sets the keyboard to spectrum mode whenever the file is written to. > >> + This file is writeonly. > >> + This file is optional and exists if the device supports this. > >> +Users: https://github.com/openrazer > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/mode_reactive > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: Sets the keyboard to reactive mode. > >> + A speed byte and 3 RGB bytes should be written. > >> + > >> + VALUE SPEED > >> + 1 Short > >> + 2 Medium > >> + 3 Long > >> + > >> + This file is writeonly. > >> + This file is optional and exists if the device supports this. > >> +Users: https://github.com/openrazer > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/mode_starlight > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: Sets the keyboard to starlight mode. > >> + Requires at least one byte representing the effect speed. > >> + > >> + Mode 1: single color. 3 RGB bytes. > >> + Mode 2: two colors. 6 RGB bytes. > >> + Mode 3: random colors. Anything else passed. > >> + > >> + VALUE SPEED > >> + 1 Short > >> + 2 Medium > >> + 3 Long > >> + > >> + This file is writeonly. > >> + This file is optional and exists if the device supports this. > >> +Users: https://github.com/openrazer > >> + > >> + > >> +What: /sys/bus/hid/drivers/hid-razer/<hid-bus>:<vendor-id>:<product-id>.<num>/mode_breath > >> +Date: August 2016 > >> +Contact: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +Description: Sets the keyboard to breath mode. > >> + Breathing mode has 3 modes of operation. > >> + > >> + Mode 1 fading in and out using a single color. 3 RGB bytes. > >> + Mode 2 is fading in and out between two colors. 6 RGB bytes. > >> + Mode 3 is fading in and out between random colors. Anything else passed. > >> + > >> + This file is writeonly. > >> + This file is optional and exists if the device supports this. > >> +Users: https://github.com/openrazer > > > > All those mode_* will be a pain for you to maintain. When a new device > > comes in, you'll have to update the kernel for it, wait for your users > > to have it, update your tool and maintain old versions of the modes. > > > > If Razer decides to add an other mode, you'll have to add a new API, and > > if the breathing changes, you might need to add a new > > mode_breathing_2... > > > >> diff --git a/MAINTAINERS b/MAINTAINERS > >> index a306795..594789a 100644 > >> --- a/MAINTAINERS > >> +++ b/MAINTAINERS > >> @@ -9771,6 +9771,13 @@ L: linux-wireless@xxxxxxxxxxxxxxx > >> S: Orphan > >> F: drivers/net/wireless/ray* > >> > >> +RAZER DRIVERS > >> +M: Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> +W: https://github.com/openrazer > >> +S: Maintained > >> +F: drivers/hid/hid-razer* > >> +F: Documentation/ABI/*/sysfs-driver-hid-razer* > >> + > >> RCUTORTURE MODULE > >> M: Josh Triplett <josh@xxxxxxxxxxxxxxxx> > >> M: "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx> > >> diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig > >> index 78ac481..5e74a0e 100644 > >> --- a/drivers/hid/Kconfig > >> +++ b/drivers/hid/Kconfig > >> @@ -702,6 +702,14 @@ config HID_PRIMAX > >> Support for Primax devices that are not fully compliant with the > >> HID standard. > >> > >> +config HID_RAZER > >> + tristate "Razer device support" > >> + depends on USB_HID > >> + ---help--- > >> + Support for Razer devices. > >> + Supports custom mouse, keyboard and laptop lightning modes, special keys > >> + and various settings. This driver is required for the OpenRazer project. > >> + > >> config HID_ROCCAT > >> tristate "Roccat device support" > >> depends on USB_HID > >> diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile > >> index fc4b2aa..30fbc8c 100644 > >> --- a/drivers/hid/Makefile > >> +++ b/drivers/hid/Makefile > >> @@ -78,6 +78,7 @@ hid-picolcd-$(CONFIG_DEBUG_FS) += hid-picolcd_debugfs.o > >> > >> obj-$(CONFIG_HID_PLANTRONICS) += hid-plantronics.o > >> obj-$(CONFIG_HID_PRIMAX) += hid-primax.o > >> +obj-$(CONFIG_HID_RAZER) += hid-razer-common.o hid-razer.o > >> obj-$(CONFIG_HID_ROCCAT) += hid-roccat.o hid-roccat-common.o \ > >> hid-roccat-arvo.o hid-roccat-isku.o hid-roccat-kone.o \ > >> hid-roccat-koneplus.o hid-roccat-konepure.o hid-roccat-kovaplus.o \ > >> diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h > >> index 4ed9a4f..ee76e46 100644 > >> --- a/drivers/hid/hid-ids.h > >> +++ b/drivers/hid/hid-ids.h > >> @@ -1085,4 +1085,9 @@ > >> #define USB_DEVICE_ID_RAPHNET_2NES2SNES 0x0002 > >> #define USB_DEVICE_ID_RAPHNET_4NES4SNES 0x0003 > >> > >> +#define USB_VENDOR_ID_RAZER 0x1532 > >> +#define USB_DEVICE_ID_RAZER_BLADE_STEALTH_2016 0x0205 > >> +#define USB_DEVICE_ID_RAZER_BLADE_14_2016 0x020F > >> +#define USB_DEVICE_ID_RAZER_BLACKWIDOW_CHROMA 0x0203 > >> + > >> #endif > >> diff --git a/drivers/hid/hid-razer-common.c b/drivers/hid/hid-razer-common.c > > > > What's the point of having 2 files? Roccat was special in a way but we > > now prefer having only one file per manufacturer. > > > >> new file mode 100644 > >> index 0000000..2f3406d > >> --- /dev/null > >> +++ b/drivers/hid/hid-razer-common.c > >> @@ -0,0 +1,296 @@ > >> +/* > >> + * Razer Kernel Drivers > >> + * Copyright (c) 2016 Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> + * Based on Tim Theede <pez2001@xxxxxxxxxxxxxxxxx> razer_chroma_drivers project. > >> + * > >> + * This program is free software; you can redistribute it and/or modify > >> + * it under the terms of the GNU General Public License as published by > >> + * the Free Software Foundation; either version 2 of the License, or > >> + * (at your option) any later version. > >> + * > >> + * This program is distributed in the hope that it will be useful, > >> + * but WITHOUT ANY WARRANTY; without even the implied warranty of > >> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > >> + * GNU General Public License for more details. > >> + */ > >> + > >> +#include <linux/printk.h> > >> +#include <linux/kernel.h> > >> +#include <linux/slab.h> > >> +#include <linux/module.h> > >> +#include <linux/init.h> > >> +#include <linux/usb/input.h> > > > > eeeeks > > > > HID is transport agnostic, you shouldn't have to include anything usb > > related. (unless the device is not using HID after all for configuration) > > > >> +#include <linux/hid.h> > >> + > >> +#include "hid-razer-common.h" > >> + > >> +//###########################// > >> +//### Version Information ###// > >> +//###########################// > >> + > >> +MODULE_AUTHOR("Roland Singer <roland.singer@xxxxxxxxxxxxx>"); > >> +MODULE_DESCRIPTION("USB Razer common driver"); > >> +MODULE_LICENSE("GPL v2"); > >> +MODULE_VERSION("1.0.0"); > >> + > >> +//##########################// > >> +//### Exported Functions ###// > >> +//##########################// > >> + > >> +/* > >> + * Initialize a razer device struct. > >> + */ > >> +int razer_init_device(struct razer_device *razer_dev, > >> + struct usb_device *usb_dev) > >> +{ > >> + razer_dev->data = NULL; > >> + razer_dev->usb_dev = usb_dev; > >> + mutex_init(&razer_dev->lock); > >> + > >> + return 0; > >> +} > >> +EXPORT_SYMBOL_GPL(razer_init_device); > >> + > >> +/* > >> + * Get an initialised razer report > >> + */ > >> +struct razer_report razer_new_report(void) > >> +{ > >> + struct razer_report new_report; > >> + > >> + memset(&new_report, 0, sizeof(new_report)); > >> + > >> + new_report.status = RAZER_STATUS_NEW_COMMAND; > >> + new_report.transaction_id = 0xFF; > >> + new_report.remaining_packets = 0x00; > >> + new_report.protocol_type = 0x00; > >> + new_report.reserved = 0x00; > >> + new_report.command_class = 0x00; > >> + new_report.command_id = 0x00; > >> + new_report.data_size = 0x00; > >> + > >> + return new_report; > >> +} > >> +EXPORT_SYMBOL_GPL(razer_new_report); > >> + > >> +/* > >> + * Send an USB control report to the device. > >> + * Returns 0 on success. > >> + */ > >> +int _razer_send(struct razer_device *razer_dev, struct razer_report *report) > >> +{ > >> + const uint size = sizeof(*report); > >> + char *buf; > >> + int len; > >> + > >> + buf = kmemdup(report, size, GFP_KERNEL); > >> + if (!buf) > >> + return -ENOMEM; > >> + > >> + len = > >> + usb_control_msg(razer_dev->usb_dev, > >> + usb_sndctrlpipe(razer_dev->usb_dev, 0), > >> + HID_REQ_SET_REPORT, // Request > >> + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, > >> + 0x300, // Value > >> + razer_dev->report_index, // Index > >> + buf, // Data > >> + size, // Length > >> + USB_CTRL_SET_TIMEOUT); > > > > Why not using hid_hw_request? > > > >> + > >> + usleep_range(600, 800); > >> + > >> + kfree(buf); > >> + > >> + return ((len < 0) ? len : ((len != size) ? -EIO : 0)); > >> +} > >> + > >> +int razer_send(struct razer_device *razer_dev, struct razer_report *report) > >> +{ > >> + int retval; > >> + > >> + mutex_lock(&razer_dev->lock); > >> + retval = _razer_send(razer_dev, report); > >> + mutex_unlock(&razer_dev->lock); > >> + > >> + return retval; > >> +} > >> +EXPORT_SYMBOL_GPL(razer_send); > >> + > >> +/* > >> + * Get a response from the razer device. > >> + * Returns 0 on success. > >> + */ > >> +int _razer_receive(struct razer_device *razer_dev, struct razer_report *report) > >> +{ > >> + const uint size = sizeof(*report); > >> + int len; > >> + > >> + memset(report, 0, size); > >> + > >> + len = > >> + usb_control_msg(razer_dev->usb_dev, > >> + usb_rcvctrlpipe(razer_dev->usb_dev, 0), > >> + HID_REQ_GET_REPORT, // Request > >> + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, > >> + 0x300, // Value > >> + razer_dev->report_index, // Index > >> + report, // Data > >> + size, > >> + USB_CTRL_SET_TIMEOUT); > >> + > >> + usleep_range(600, 800); > >> + > >> + return ((len < 0) ? len : ((len != size) ? -EIO : 0)); > >> +} > >> + > >> +int razer_receive(struct razer_device *razer_dev, struct razer_report *report) > >> +{ > >> + int retval; > >> + > >> + mutex_lock(&razer_dev->lock); > >> + retval = _razer_receive(razer_dev, report); > >> + mutex_unlock(&razer_dev->lock); > >> + > >> + return retval; > >> +} > >> +EXPORT_SYMBOL_GPL(razer_receive); > >> + > >> +/* > >> + * Send a report and wait for a response. > >> + * Returns 0 on success. > >> + */ > >> +int _razer_send_with_response(struct razer_device *razer_dev, > >> + struct razer_report *request_r, > >> + struct razer_report *response_r) > >> +{ > >> + int retval, r; > >> + > >> + retval = _razer_send(razer_dev, request_r); > >> + if (retval != 0) > >> + return retval; > >> + > >> + // Retry 40 times when busy -> 125 milliseconds -> max 5 seconds wait > >> + for (r = 0; r < 40; r++) { > >> + retval = _razer_receive(razer_dev, response_r); > >> + if (retval != 0) > >> + return retval; > >> + > >> + if (response_r->command_class != request_r->command_class || > >> + response_r->command_id != request_r->command_id) { > >> + dev_err(&razer_dev->usb_dev->dev, > >> + "razer_send_with_response: " > >> + "response commands do not match: " > >> + "Request Class: %d " > >> + "Request ID: %d " > >> + "Response Class: %d " > >> + "Response ID: %d\n", > >> + request_r->command_class, > >> + request_r->command_id, > >> + response_r->command_class, > >> + response_r->command_id); > >> + return -EINVAL; > >> + } > >> + > >> + switch (response_r->status) { > >> + case RAZER_STATUS_SUCCESS: > >> + return 0; > >> + > >> + case RAZER_STATUS_BUSY: > >> + msleep(125); > >> + continue; > >> + > >> + case RAZER_STATUS_FAILURE: > >> + case RAZER_STATUS_TIMEOUT: > >> + case RAZER_STATUS_NOT_SUPPORTED: > >> + return -EINVAL; > >> + > >> + default: > >> + dev_err(&razer_dev->usb_dev->dev, > >> + "razer_send_with_response: " > >> + "unknown response status 0x%x\n", > >> + response_r->status); > >> + return -EINVAL; > >> + } > >> + } > >> + > >> + dev_err(&razer_dev->usb_dev->dev, "razer_send_with_response: " > >> + "request failed: device is busy\n"); > >> + > >> + return -EBUSY; > >> +} > >> + > >> +int razer_send_with_response(struct razer_device *razer_dev, > >> + struct razer_report *request_report, > >> + struct razer_report *response_report) > >> +{ > >> + int retval; > >> + > >> + mutex_lock(&razer_dev->lock); > >> + retval = _razer_send_with_response(razer_dev, > >> + request_report, response_report); > >> + mutex_unlock(&razer_dev->lock); > >> + > >> + return retval; > >> +} > >> +EXPORT_SYMBOL_GPL(razer_send_with_response); > >> + > >> +/* > >> + * Send a report, wait for a response and check the response status. > >> + * Returns 0 on success. > >> + */ > >> +int razer_send_check_response(struct razer_device *razer_dev, > >> + struct razer_report *request_report) > >> +{ > >> + struct razer_report response_report; > >> + > >> + return razer_send_with_response(razer_dev, > >> + request_report, &response_report); > >> +} > >> +EXPORT_SYMBOL_GPL(razer_send_check_response); > >> + > >> +/* > >> + * Calculate the checksum for the usb message > >> + * > >> + * Checksum byte is stored in the 2nd last byte in the messages payload. > >> + * The checksum is generated by XORing all the bytes in the report starting > >> + * at byte number 2 (0 based) and ending at byte 88. > >> + */ > >> +unsigned char razer_calculate_crc(struct razer_report *report) > >> +{ > >> + // Second to last byte of report is a simple checksum. > >> + // Just xor all bytes up with overflow and you are done. > >> + unsigned char crc = 0; > >> + unsigned char *_report = (unsigned char *)report; > >> + unsigned int i; > >> + > >> + for (i = 2; i < 88; i++) > >> + crc ^= _report[i]; > >> + > >> + return crc; > >> +} > >> +EXPORT_SYMBOL_GPL(razer_calculate_crc); > >> + > >> +/* > >> + * Detailed error print > >> + */ > >> +void razer_print_err_report(struct razer_report *report, > >> + char *driver_name, char *message) > >> +{ > >> + printk(KERN_WARNING "%s: %s. Status: %02x Transaction ID: %02x" > >> + " Data Size: %02x Command Class: %02x Command ID: %02x" > >> + " Params: %02x%02x%02x%02x%02x%02x%02x%02x%02x%02x\n", > >> + driver_name, > >> + message, > >> + report->status, > >> + report->transaction_id, > >> + report->data_size, > >> + report->command_class, > >> + report->command_id, > >> + report->arguments[0], report->arguments[1], > >> + report->arguments[2], report->arguments[3], > >> + report->arguments[4], report->arguments[5], > >> + report->arguments[6], report->arguments[7], > >> + report->arguments[8], report->arguments[9]); > > > > %10ph would help you here, instead of using all of the bytes one by one. > > > >> +} > >> +EXPORT_SYMBOL_GPL(razer_print_err_report); > >> diff --git a/drivers/hid/hid-razer-common.h b/drivers/hid/hid-razer-common.h > >> new file mode 100644 > >> index 0000000..ec5d191 > >> --- /dev/null > >> +++ b/drivers/hid/hid-razer-common.h > >> @@ -0,0 +1,96 @@ > >> +/* > >> + * Razer Kernel Drivers > >> + * Copyright (c) 2016 Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> + * Based on Tim Theede <pez2001@xxxxxxxxxxxxxxxxx> razer_chroma_drivers project. > >> + * > >> + * This program is free software; you can redistribute it and/or modify > >> + * it under the terms of the GNU General Public License as published by > >> + * the Free Software Foundation; either version 2 of the License, or > >> + * (at your option) any later version. > >> + * > >> + * This program is distributed in the hope that it will be useful, > >> + * but WITHOUT ANY WARRANTY; without even the implied warranty of > >> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > >> + * GNU General Public License for more details. > >> + */ > >> + > >> +#ifndef __HID_RAZER_COMMON_H > >> +#define __HID_RAZER_COMMON_H > >> + > >> +#include <linux/usb.h> > >> +#include <linux/types.h> > >> + > >> +//#############// > >> +//### Types ###// > >> +//#############// > >> + > >> +enum razer_status { > >> + RAZER_STATUS_NEW_COMMAND = 0x00, > >> + RAZER_STATUS_BUSY = 0x01, > >> + RAZER_STATUS_SUCCESS = 0x02, > >> + RAZER_STATUS_FAILURE = 0x03, > >> + RAZER_STATUS_TIMEOUT = 0x04, > >> + RAZER_STATUS_NOT_SUPPORTED = 0x05 > >> +}; > >> + > >> +struct razer_device { > >> + struct usb_device *usb_dev; > >> + struct mutex lock; // Synchronize usb access. > >> + uint report_index; // The report index to use. > >> + void *data; // Optional custom data. > >> +}; > >> + > >> +struct razer_rgb { > >> + unsigned char r, g, b; > >> +}; > >> + > >> +// Report send or received from the device. > >> +// transaction_id: Used to group request-response. > >> +// remaining_packets: Number of remaining packets in the sequence (Big Endian). > >> +// protocol_type: Always 0x0. > >> +// data_size: Size of payload, cannot be greater than 80. > >> +// 90 = header (8B) + data + CRC (1B) + Reserved (1B) > >> +// command_id: Type of command being issued. > >> +// command_class: Type of command being send. Direction 0 is Host->Device. > >> +// Direction 1 is Device->Host. AKA Get LED 0x80, Set LED 0x00 > >> +// crc: xor'ed bytes of report > >> +// reserved: Is always 0x0. > >> +struct razer_report { > >> + unsigned char status; > >> + unsigned char transaction_id; > >> + unsigned short remaining_packets; > >> + unsigned char protocol_type; > >> + unsigned char data_size; > >> + unsigned char command_class; > >> + unsigned char command_id; > >> + unsigned char arguments[80]; > >> + unsigned char crc; > >> + unsigned char reserved; > >> +}; > >> + > >> +//#################// > >> +//### Functions ###// > >> +//#################// > >> + > >> +int razer_init_device(struct razer_device *razer_dev, > >> + struct usb_device *usb_dev); > >> + > >> +struct razer_report razer_new_report(void); > >> + > >> +int razer_send(struct razer_device *razer_dev, struct razer_report *report); > >> + > >> +int razer_receive(struct razer_device *razer_dev, struct razer_report *report); > >> + > >> +int razer_send_with_response(struct razer_device *razer_dev, > >> + struct razer_report *request_report, > >> + struct razer_report *response_report); > >> + > >> +int razer_send_check_response(struct razer_device *razer_dev, > >> + struct razer_report *request_report); > >> + > >> +unsigned char razer_calculate_crc(struct razer_report *report); > >> + > >> +void razer_print_err_report(struct razer_report *report, > >> + char *driver_name, char *message); > >> + > >> +#endif // __HID_RAZER_COMMON_H > >> diff --git a/drivers/hid/hid-razer.c b/drivers/hid/hid-razer.c > >> new file mode 100644 > >> index 0000000..9cbc53f > >> --- /dev/null > >> +++ b/drivers/hid/hid-razer.c > >> @@ -0,0 +1,1430 @@ > >> +/* > >> + * Razer Kernel Drivers > >> + * Copyright (c) 2016 Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> + * Based on Tim Theede <pez2001@xxxxxxxxxxxxxxxxx> razer_chroma_drivers project. > >> + * > >> + * This program is free software; you can redistribute it and/or modify > >> + * it under the terms of the GNU General Public License as published by > >> + * the Free Software Foundation; either version 2 of the License, or > >> + * (at your option) any later version. > >> + * > >> + * This program is distributed in the hope that it will be useful, > >> + * but WITHOUT ANY WARRANTY; without even the implied warranty of > >> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > >> + * GNU General Public License for more details. > >> + */ > >> + > >> +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt > >> + > >> +#include <linux/printk.h> > >> +#include <linux/kernel.h> > >> +#include <linux/slab.h> > >> +#include <linux/module.h> > >> +#include <linux/init.h> > >> +#include <linux/usb/input.h> > >> +#include <linux/hid.h> > >> +#include <linux/dmi.h> > >> + > >> +#include "hid-ids.h" > >> +#include "hid-razer-common.h" > >> +#include "hid-razer.h" > >> + > >> +//###########################// > >> +//### Version Information ###// > >> +//###########################// > >> + > >> +MODULE_AUTHOR("Roland Singer <roland.singer@xxxxxxxxxxxxx>"); > >> +MODULE_DESCRIPTION("USB HID Razer Driver"); > >> +MODULE_LICENSE("GPL v2"); > >> +MODULE_VERSION("1.0.0"); > >> + > >> +//########################// > >> +//### Helper functions ###// > >> +//########################// > >> + > >> +// Get the firmware version. > >> +int razer_get_firmware_version(struct razer_device *razer_dev, > >> + unsigned char *fw_string) > >> +{ > >> + int retval; > >> + struct razer_report response_r; > >> + struct razer_report request_r = razer_new_report(); > >> + > >> + request_r.command_class = 0x00; > >> + request_r.command_id = 0x81; > >> + request_r.data_size = 0x00; > >> + request_r.crc = razer_calculate_crc(&request_r); > >> + > >> + retval = razer_send_with_response(razer_dev, &request_r, &response_r); > >> + if (retval != 0) { > >> + razer_print_err_report(&response_r, KBUILD_MODNAME, > >> + "get_firmware_version: request failed"); > >> + return retval; > >> + } > >> + > >> + retval = sprintf(fw_string, "v%d.%d", response_r.arguments[0], > >> + response_r.arguments[1]); > >> + if (retval <= 0) { > >> + pr_warn("get_firmware_version: failed to compose string"); > >> + return retval; > >> + } > >> + > >> + return 0; > >> +} > >> + > >> +// Get brightness of the keyboard. > >> +int razer_get_brightness(struct razer_device *razer_dev) > >> +{ > >> + int retval; > >> + struct usb_device *usb_dev = razer_dev->usb_dev; > >> + struct razer_report request_report = razer_new_report(); > >> + struct razer_report response_report; > >> + int response_value_index = 1; > >> + const unsigned int product_id = usb_dev->descriptor.idProduct; > >> + > >> + request_report.command_class = 0x0E; > >> + request_report.command_id = 0x84; > >> + request_report.data_size = 0x01; > >> + request_report.arguments[0] = 0x01; // LED Class > >> + > >> + // Device support. > >> + if (product_id == USB_DEVICE_ID_RAZER_BLACKWIDOW_CHROMA) { > >> + request_report.command_class = 0x03; > >> + request_report.command_id = 0x83; > >> + request_report.arguments[1] = 0x05; // Backlight LED > >> + request_report.data_size = 0x02; > >> + response_value_index = 2; > >> + } > >> + > >> + request_report.crc = razer_calculate_crc(&request_report); > >> + > >> + retval = razer_send_with_response(razer_dev, > >> + &request_report, &response_report); > >> + if (retval != 0) { > >> + razer_print_err_report(&response_report, KBUILD_MODNAME, > >> + "get_brightness: request failed"); > >> + return retval; > >> + } > >> + > >> + return response_report.arguments[response_value_index]; > >> +} > >> + > >> +// Set the keyboard brightness. > >> +int razer_set_brightness(struct razer_device *razer_dev, > >> + unsigned char brightness) > >> +{ > >> + int retval; > >> + struct usb_device *usb_dev = razer_dev->usb_dev; > >> + struct razer_report report = razer_new_report(); > >> + const unsigned int product_id = usb_dev->descriptor.idProduct; > >> + > >> + report.command_class = 0x0E; > >> + report.command_id = 0x04; > >> + report.data_size = 0x02; > >> + report.arguments[0] = 0x01; > >> + report.arguments[1] = brightness; > >> + > >> + // Device support. > >> + if (product_id == USB_DEVICE_ID_RAZER_BLACKWIDOW_CHROMA) { > >> + report.command_class = 0x03; > >> + report.command_id = 0x03; > >> + report.arguments[1] = 0x05; // Backlight LED > >> + report.arguments[2] = brightness; > >> + report.data_size = 0x03; > >> + } > >> + > >> + report.crc = razer_calculate_crc(&report); > >> + > >> + retval = razer_send_check_response(razer_dev, &report); > >> + if (retval != 0) { > >> + razer_print_err_report(&report, KBUILD_MODNAME, > >> + "set_brightness: request failed"); > >> + return retval; > >> + } > >> + > >> + return 0; > >> +} > >> + > >> +// Set the logo lighting state (on/off only) > >> +int razer_set_logo(struct razer_device *razer_dev, unsigned char state) > >> +{ > >> + int retval; > >> + struct razer_report report = razer_new_report(); > >> + > >> + if (state != 0 && state != 1) { > >> + pr_warn("set_logo: logo lighting state must be either 0 or 1: " > >> + "got: %d\n", state); > >> + return -EINVAL; > >> + } > >> + > >> + report.command_class = 0x03; > >> + report.command_id = 0x00; > >> + report.data_size = 0x03; > >> + report.arguments[0] = 0x01; // LED Class > >> + report.arguments[1] = 0x04; // LED ID, Logo > >> + report.arguments[2] = state; // State > >> + report.crc = razer_calculate_crc(&report); > >> + > >> + retval = razer_send_check_response(razer_dev, &report); > >> + if (retval != 0) { > >> + razer_print_err_report(&report, KBUILD_MODNAME, > >> + "set_logo: request failed"); > >> + return retval; > >> + } > >> + > >> + return 0; > >> +} > >> + > >> +// Toggle FN key > >> +int razer_set_fn_mode(struct razer_device *razer_dev, unsigned char state) > >> +{ > >> + int retval; > >> + struct razer_data *data = razer_dev->data; > >> + struct razer_report report = razer_new_report(); > >> + > >> + if (state != 0 && state != 1) { > >> + pr_warn("fn_mode: must be either 0 or 1: got: %d\n", state); > >> + return -EINVAL; > >> + } > >> + > >> + report.command_class = 0x02; > >> + report.command_id = 0x06; > >> + report.data_size = 0x02; > >> + report.arguments[0] = 0x00; > >> + report.arguments[1] = state; // State > >> + report.crc = razer_calculate_crc(&report); > >> + > >> + retval = razer_send_check_response(razer_dev, &report); > >> + if (retval != 0) { > >> + razer_print_err_report(&report, KBUILD_MODNAME, > >> + "fn_mode: request failed"); > >> + return retval; > >> + } > >> + > >> + // Save the new fn mode state. > >> + data->fn_mode_state = (char)state; > >> + > >> + return 0; > >> +} > >> + > >> +// Returns the row count of the keyboard. > >> +// On error a value smaller than 0 is returned. > >> +int razer_get_rows(struct usb_device *usb_dev) > >> +{ > >> + switch (usb_dev->descriptor.idProduct) { > >> + case USB_DEVICE_ID_RAZER_BLADE_STEALTH_2016: > >> + return RAZER_STEALTH_2016_ROWS; > >> + > >> + case USB_DEVICE_ID_RAZER_BLADE_14_2016: > >> + return RAZER_BLADE_14_2016_ROWS; > >> + > >> + case USB_DEVICE_ID_RAZER_BLACKWIDOW_CHROMA: > >> + return RAZER_BLACKWIDOW_CHROMA_ROWS; > >> + > >> + default: > >> + return -EINVAL; > >> + } > >> +} > >> + > >> +// Returns the column count of the keyboard. > >> +// On error a value smaller than 0 is returned. > >> +int razer_get_columns(struct usb_device *usb_dev) > >> +{ > >> + switch (usb_dev->descriptor.idProduct) { > >> + case USB_DEVICE_ID_RAZER_BLADE_STEALTH_2016: > >> + return RAZER_STEALTH_2016_COLUMNS; > >> + > >> + case USB_DEVICE_ID_RAZER_BLADE_14_2016: > >> + return RAZER_BLADE_14_2016_COLUMNS; > >> + > >> + case USB_DEVICE_ID_RAZER_BLACKWIDOW_CHROMA: > >> + return RAZER_BLACKWIDOW_CHROMA_COLUMNS; > >> + > >> + default: > >> + return -EINVAL; > >> + } > >> +} > >> + > >> +// Set the key colors for a specific row. Takes in an array of RGB bytes. > >> +int razer_set_key_row(struct razer_device *razer_dev, unsigned char row_index, > >> + unsigned char *row_cols, size_t row_cols_len) > >> +{ > >> + int retval; > >> + int rows = razer_get_rows(razer_dev->usb_dev); > >> + int columns = razer_get_columns(razer_dev->usb_dev); > >> + size_t row_cols_required_len = columns * 3; > >> + struct razer_report report = razer_new_report(); > >> + > >> + if (rows < 0 || columns < 0) { > >> + pr_warn("set_key_row: unsupported device\n"); > >> + return -EINVAL; > >> + } > >> + > >> + // Validate the input. > >> + if (row_index >= rows) { > >> + pr_warn("set_key_row: invalid row index: %d\n", row_index); > >> + return -EINVAL; > >> + } > >> + if (row_cols_len != row_cols_required_len) { > >> + pr_warn("set_key_row: wrong amount of RGB data provided: " > >> + "%lu of %lu\n", row_cols_len, row_cols_required_len); > >> + return -EINVAL; > >> + } > >> + > >> + report.command_class = 0x03; > >> + report.command_id = 0x0B; > >> + report.data_size = row_cols_required_len + 4; > >> + report.transaction_id = 0x80; // Set a custom transaction ID. > >> + report.arguments[0] = 0xFF; // Frame ID > >> + report.arguments[1] = row_index; // Row > >> + report.arguments[2] = 0x00; // Start Index > >> + report.arguments[3] = columns - 1; // End Index (Calc to end of row) > >> + memcpy(&report.arguments[4], row_cols, row_cols_required_len); > >> + report.crc = razer_calculate_crc(&report); > >> + > >> + retval = razer_send_check_response(razer_dev, &report); > >> + if (retval != 0) { > >> + razer_print_err_report(&report, KBUILD_MODNAME, > >> + "set_key_row: request failed"); > >> + return retval; > >> + } > >> + > >> + return retval; > >> +} > >> + > >> +// Set the key colors for the complete keyboard. Takes in an array of RGB bytes. > >> +int razer_set_key_colors(struct razer_device *razer_dev, > >> + unsigned char *row_cols, size_t row_cols_len) > >> +{ > >> + int i, retval; > >> + int rows = razer_get_rows(razer_dev->usb_dev); > >> + int columns = razer_get_columns(razer_dev->usb_dev); > >> + size_t row_cols_required_len = columns * 3 * rows; > >> + > >> + if (columns < 0 || rows < 0 || row_cols_required_len < 0) { > >> + pr_warn("set_key_colors: unsupported device\n"); > >> + return -EINVAL; > >> + } > >> + > >> + // Validate the input. > >> + if (row_cols_len != row_cols_required_len) { > >> + pr_warn("set_key_colors: wrong amount of RGB data provided: " > >> + "%lu of %lu\n", row_cols_len, row_cols_required_len); > >> + return -EINVAL; > >> + } > >> + > >> + for (i = 0; i < rows; i++) { > >> + retval = > >> + razer_set_key_row(razer_dev, i, > >> + (unsigned char *)&row_cols[i * columns * 3], > >> + columns * 3); > >> + if (retval != 0) { > >> + pr_warn("set_key_colors: failed to set colors for row: " > >> + "%d\n", i); > >> + return retval; > >> + } > >> + } > >> + > >> + return 0; > >> +} > >> + > >> +// Enable keyboard macro keys. > >> +// Keycodes for the macro keys are 191-195 for M1-M5. > >> +int razer_activate_macro_keys(struct razer_device *razer_dev) > >> +{ > >> + int retval; > >> + struct razer_report report = razer_new_report(); > >> + > >> + report.command_class = 0x00; > >> + report.command_id = 0x04; > >> + report.data_size = 0x02; > >> + report.arguments[0] = 0x02; > >> + report.arguments[1] = 0x04; > >> + report.crc = razer_calculate_crc(&report); > >> + > >> + retval = razer_send_check_response(razer_dev, &report); > >> + if (retval != 0) { > >> + razer_print_err_report(&report, KBUILD_MODNAME, > >> + "activate_macro_keys: request failed"); > >> + return retval; > >> + } > >> + > >> + return 0; > >> +} > >> + > >> +// Disable any keyboard effect > >> +int razer_set_none_mode(struct razer_device *razer_dev) > >> +{ > >> + int retval; > >> + struct razer_report report = razer_new_report(); > >> + > >> + report.command_class = 0x03; > >> + report.command_id = 0x0A; > >> + report.data_size = 0x01; > >> + report.arguments[0] = 0x00; // Effect ID > >> + report.crc = razer_calculate_crc(&report); > >> + > >> + retval = razer_send_check_response(razer_dev, &report); > >> + if (retval != 0) { > >> + razer_print_err_report(&report, KBUILD_MODNAME, > >> + "none_mode: request failed"); > >> + return retval; > >> + } > >> + > >> + return 0; > >> +} > >> + > >> +// Set static effect on the keyboard > >> +int razer_set_static_mode(struct razer_device *razer_dev, > >> + struct razer_rgb *color) > >> +{ > >> + int retval; > >> + struct razer_report report = razer_new_report(); > >> + > >> + report.command_class = 0x03; > >> + report.command_id = 0x0A; > >> + report.data_size = 0x04; > >> + report.arguments[0] = 0x06; // Effect ID > >> + report.arguments[1] = color->r; > >> + report.arguments[2] = color->g; > >> + report.arguments[3] = color->b; > >> + report.crc = razer_calculate_crc(&report); > >> + > >> + retval = razer_send_check_response(razer_dev, &report); > >> + if (retval != 0) { > >> + razer_print_err_report(&report, KBUILD_MODNAME, > >> + "static_mode: request failed"); > >> + return retval; > >> + } > >> + > >> + return 0; > >> +} > >> + > >> +// Set custom effect on the keyboard > >> +int razer_set_custom_mode(struct razer_device *razer_dev) > >> +{ > >> + int retval; > >> + struct razer_report report = razer_new_report(); > >> + > >> + report.command_class = 0x03; > >> + report.command_id = 0x0A; > >> + report.data_size = 0x02; > >> + report.arguments[0] = 0x05; // Effect ID > >> + report.arguments[1] = 0x00; // Data frame ID > >> + report.crc = razer_calculate_crc(&report); > >> + > >> + retval = razer_send_check_response(razer_dev, &report); > >> + if (retval != 0) { > >> + razer_print_err_report(&report, KBUILD_MODNAME, > >> + "custom_mode: request failed"); > >> + return retval; > >> + } > >> + > >> + return 0; > >> +} > >> + > >> +// Set the wave effect on the keyboard > >> +int razer_set_wave_mode(struct razer_device *razer_dev, > >> + unsigned char direction) > >> +{ > >> + int retval; > >> + struct razer_report report = razer_new_report(); > >> + > >> + if (direction != 1 && direction != 2) { > >> + pr_warn("wave_mode: wave direction must be 1 or 2: got: %d\n", > >> + direction); > >> + return -EINVAL; > >> + } > >> + > >> + report.command_class = 0x03; > >> + report.command_id = 0x0A; > >> + report.data_size = 0x02; > >> + report.arguments[0] = 0x01; // Effect ID > >> + report.arguments[1] = direction; // Direction > >> + report.crc = razer_calculate_crc(&report); > >> + > >> + retval = razer_send_check_response(razer_dev, &report); > >> + if (retval != 0) { > >> + razer_print_err_report(&report, KBUILD_MODNAME, > >> + "wave_mode: request failed"); > >> + return retval; > >> + } > >> + > >> + return 0; > >> +} > >> + > >> +// Set spectrum effect on the keyboard > >> +int razer_set_spectrum_mode(struct razer_device *razer_dev) > >> +{ > >> + int retval; > >> + struct razer_report report = razer_new_report(); > >> + > >> + report.command_class = 0x03; > >> + report.command_id = 0x0A; > >> + report.data_size = 0x01; > >> + report.arguments[0] = 0x04; // Effect ID > >> + report.crc = razer_calculate_crc(&report); > >> + > >> + retval = razer_send_check_response(razer_dev, &report); > >> + if (retval != 0) { > >> + razer_print_err_report(&report, KBUILD_MODNAME, > >> + "spectrum_mode: request failed"); > >> + return retval; > >> + } > >> + > >> + return 0; > >> +} > >> + > >> +// Set reactive effect on the keyboard > >> +int razer_set_reactive_mode(struct razer_device *razer_dev, > >> + unsigned char speed, struct razer_rgb *color) > >> +{ > >> + int retval = 0; > >> + struct razer_report report = razer_new_report(); > >> + > >> + if (speed <= 0 || speed >= 4) { > >> + pr_warn("reactive_mode: speed must be within 1-3: got: %d\n", > >> + speed); > >> + return -EINVAL; > >> + } > >> + > >> + report.command_class = 0x03; > >> + report.command_id = 0x0A; > >> + report.data_size = 0x05; > >> + report.arguments[0] = 0x02; // Effect ID > >> + report.arguments[1] = speed; // Speed > >> + report.arguments[2] = color->r; > >> + report.arguments[3] = color->g; > >> + report.arguments[4] = color->b; > >> + report.crc = razer_calculate_crc(&report); > >> + > >> + retval = razer_send_check_response(razer_dev, &report); > >> + if (retval != 0) { > >> + razer_print_err_report(&report, KBUILD_MODNAME, > >> + "reactive_mode: request failed"); > >> + return retval; > >> + } > >> + > >> + return 0; > >> +} > >> + > >> +// Set the starlight effect on the keyboard. > >> +// Possible speed values: 1-3. > >> +// 1. Random color mode: set both colors to NULL > >> +// 2. One color mode: Set color1 and color2 to NULL > >> +// 3. Two color mode: Set both colors > >> +int razer_set_starlight_mode(struct razer_device *razer_dev, > >> + unsigned char speed, struct razer_rgb *color1, > >> + struct razer_rgb *color2) > >> +{ > >> + int retval; > >> + struct razer_report report = razer_new_report(); > >> + > >> + if (speed <= 0 || speed >= 4) { > >> + pr_warn("starlight_mode: speed must be within 1-3: got: %d\n", > >> + speed); > >> + return -EINVAL; > >> + } > >> + > >> + report.command_class = 0x03; > >> + report.command_id = 0x0A; > >> + report.arguments[0] = 0x19; // Effect ID > >> + report.arguments[2] = speed; // Speed > >> + > >> + if (!color1 && !color2) { > >> + report.arguments[1] = 0x03; // Random colors > >> + report.data_size = 0x03; > >> + } else if (color1 && !color2) { > >> + report.arguments[1] = 0x01; // One color > >> + report.arguments[3] = color1->r; > >> + report.arguments[4] = color1->g; > >> + report.arguments[5] = color1->b; > >> + report.data_size = 0x06; > >> + } else if (color1 && color2) { > >> + report.arguments[1] = 0x02; // Two colors > >> + report.arguments[3] = color1->r; > >> + report.arguments[4] = color1->g; > >> + report.arguments[5] = color1->b; > >> + report.arguments[6] = color2->r; > >> + report.arguments[7] = color2->g; > >> + report.arguments[8] = color2->b; > >> + report.data_size = 0x09; > >> + } else { > >> + pr_warn("starlight_mode: invalid colors set\n"); > >> + return -EINVAL; > >> + } > >> + > >> + report.crc = razer_calculate_crc(&report); > >> + > >> + retval = razer_send_check_response(razer_dev, &report); > >> + if (retval != 0) { > >> + razer_print_err_report(&report, KBUILD_MODNAME, > >> + "starlight_mode: request failed"); > >> + return retval; > >> + } > >> + > >> + return 0; > >> +} > >> + > >> +// Set breath effect on the keyboard. > >> +// 1. Random color mode: set both colors to NULL > >> +// 2. One color mode: Set color1 and color2 to NULL > >> +// 3. Two color mode: Set both colors > >> +int razer_set_breath_mode(struct razer_device *razer_dev, > >> + struct razer_rgb *color1, struct razer_rgb *color2) > >> +{ > >> + int retval; > >> + struct razer_report report = razer_new_report(); > >> + > >> + report.command_class = 0x03; > >> + report.command_id = 0x0A; > >> + report.arguments[0] = 0x03; // Effect ID > >> + > >> + if (!color1 && !color2) { > >> + report.arguments[1] = 0x03; // Random colors > >> + report.data_size = 0x02; > >> + } else if (color1 && !color2) { > >> + report.arguments[1] = 0x01; // One color > >> + report.arguments[2] = color1->r; > >> + report.arguments[3] = color1->g; > >> + report.arguments[4] = color1->b; > >> + report.data_size = 0x05; > >> + } else if (color1 && color2) { > >> + report.arguments[1] = 0x02; // Two colors > >> + report.arguments[2] = color1->r; > >> + report.arguments[3] = color1->g; > >> + report.arguments[4] = color1->b; > >> + report.arguments[5] = color2->r; > >> + report.arguments[6] = color2->g; > >> + report.arguments[7] = color2->b; > >> + report.data_size = 0x08; > >> + } else { > >> + pr_warn("breath_mode: invalid colors set\n"); > >> + return -EINVAL; > >> + } > >> + > >> + report.crc = razer_calculate_crc(&report); > >> + > >> + retval = razer_send_check_response(razer_dev, &report); > >> + if (retval != 0) { > >> + razer_print_err_report(&report, KBUILD_MODNAME, > >> + "breath_mode: request failed"); > >> + return retval; > >> + } > >> + > >> + return 0; > >> +} > >> + > >> +//#########################// > >> +//### Device Attributes ###// > >> +//#########################// > >> + > >> +/* > >> + * Read device file "get_serial" > >> + * Gets the serial number from the device. > >> + * Returns a string. > >> + */ > >> +static ssize_t razer_attr_read_get_serial(struct device *dev, > >> + struct device_attribute *attr, > >> + char *buf) > >> +{ > >> + char serial_string[100] = ""; > >> + > >> + // Stealth and the Blade does not have serial via USB, > >> + // so get it from the DMI table. > >> + strcpy(serial_string, dmi_get_system_info(DMI_PRODUCT_SERIAL)); > >> + return sprintf(buf, "%s\n", &serial_string[0]); > >> +} > >> + > >> +/** > >> + * Read device file "get_firmware_version" > >> + * Gets the firmware version from the device. > >> + * Returns a string. > >> + */ > >> +static ssize_t > >> +razer_attr_read_get_firmware_version(struct device *dev, > >> + struct device_attribute *attr, > >> + char *buf) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + char fw_string[100] = ""; > >> + int retval; > >> + > >> + retval = razer_get_firmware_version(razer_dev, &fw_string[0]); > >> + if (retval != 0) > >> + return retval; > >> + > >> + return sprintf(buf, "%s\n", &fw_string[0]); > >> +} > >> + > >> +/* > >> + * Read device file "get_key_rows" > >> + * Returns the amount of key rows. > >> + */ > >> +static ssize_t razer_attr_read_get_key_rows(struct device *dev, > >> + struct device_attribute *attr, > >> + char *buf) > >> +{ > >> + struct usb_interface *intf = to_usb_interface(dev->parent); > >> + struct usb_device *usb_dev = interface_to_usbdev(intf); > >> + int rows = razer_get_rows(usb_dev); > >> + > >> + return sprintf(buf, "%d\n", rows); > >> +} > >> + > >> +/* > >> + * Read device file "get_key_columns" > >> + * Returns the amount of key columns. > >> + */ > >> +static ssize_t razer_attr_read_get_key_columns(struct device *dev, > >> + struct device_attribute *attr, > >> + char *buf) > >> +{ > >> + struct usb_interface *intf = to_usb_interface(dev->parent); > >> + struct usb_device *usb_dev = interface_to_usbdev(intf); > >> + int columns = razer_get_columns(usb_dev); > >> + > >> + return sprintf(buf, "%d\n", columns); > >> +} > >> + > >> +/** > >> + * Read device file "device_type" > >> + * Returns a friendly device type string. > >> + */ > >> +static ssize_t razer_attr_read_device_type(struct device *dev, > >> + struct device_attribute *attr, > >> + char *buf) > >> +{ > >> + struct usb_interface *intf = to_usb_interface(dev->parent); > >> + struct usb_device *usb_dev = interface_to_usbdev(intf); > >> + > >> + char *device_type; > >> + > >> + switch (usb_dev->descriptor.idProduct) { > >> + case USB_DEVICE_ID_RAZER_BLADE_STEALTH_2016: > >> + device_type = "Razer Blade Stealth 2016\n"; > >> + break; > >> + > >> + case USB_DEVICE_ID_RAZER_BLADE_14_2016: > >> + device_type = "Razer Blade 14 2016\n"; > >> + break; > >> + > >> + case USB_DEVICE_ID_RAZER_BLACKWIDOW_CHROMA: > >> + device_type = "Razer BlackWidow Chroma\n"; > >> + break; > >> + > >> + default: > >> + device_type = "Unknown Device\n"; > >> + } > >> + > >> + return sprintf(buf, device_type); > >> +} > >> + > >> +/* > >> + * Read device file "brightness" > >> + * Returns the brightness value from 0-255. > >> + */ > >> +static ssize_t razer_attr_read_brightness(struct device *dev, > >> + struct device_attribute *attr, > >> + char *buf) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + int brightness = razer_get_brightness(razer_dev); > >> + > >> + return sprintf(buf, "%d\n", brightness); > >> +} > >> + > >> +/* > >> + * Write device file "brightness" > >> + * Sets the brightness to the ASCII number written to this file. > >> + * Values from 0-255. > >> + */ > >> +static ssize_t razer_attr_write_brightness(struct device *dev, > >> + struct device_attribute *attr, > >> + const char *buf, size_t count) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + unsigned long temp; > >> + int retval; > >> + > >> + retval = kstrtoul(buf, 10, &temp); > >> + if (retval != 0) { > >> + pr_warn("set brightness requires an ASCII number\n"); > >> + return retval; > >> + } > >> + > >> + retval = razer_set_brightness(razer_dev, (unsigned char)temp); > >> + if (retval != 0) > >> + return retval; > >> + > >> + return count; > >> +} > >> + > >> +/* > >> + * Write device file "set_logo" > >> + * Sets the logo lighting state to the ASCII number written to this file. > >> + * 0 = off > >> + * 1 = on > >> + */ > >> +static ssize_t razer_attr_write_set_logo(struct device *dev, > >> + struct device_attribute *attr, > >> + const char *buf, size_t count) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + unsigned long temp; > >> + int retval; > >> + > >> + retval = kstrtoul(buf, 10, &temp); > >> + if (retval != 0) { > >> + pr_warn("set_logo: requires an ASCII number\n"); > >> + return retval; > >> + } > >> + > >> + retval = razer_set_logo(razer_dev, (unsigned char)temp); > >> + if (retval != 0) > >> + return retval; > >> + > >> + return count; > >> +} > >> + > >> +/* > >> + * Write device file "fn_mode" > >> + * Sets the FN mode to the ASCII number written to this file. > >> + * If 0 the F-keys work as normal F-keys > >> + * If 1 the F-keys act as if the FN key is held > >> + */ > >> +static ssize_t razer_attr_write_fn_mode(struct device *dev, > >> + struct device_attribute *attr, > >> + const char *buf, size_t count) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + unsigned long temp; > >> + int retval; > >> + > >> + retval = kstrtoul(buf, 10, &temp); > >> + if (retval != 0) { > >> + pr_warn("set fn_mode requires an ASCII number\n"); > >> + return retval; > >> + } > >> + > >> + retval = razer_set_fn_mode(razer_dev, (unsigned char)temp); > >> + if (retval != 0) > >> + return retval; > >> + > >> + return count; > >> +} > >> + > >> +/* > >> + * Read device file "fn_mode" > >> + * Returns the current fn mode state. > >> + */ > >> +static ssize_t razer_attr_read_fn_mode(struct device *dev, > >> + struct device_attribute *attr, char *buf) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + struct razer_data *data = razer_dev->data; > >> + > >> + return sprintf(buf, "%d\n", data->fn_mode_state); > >> +} > >> + > >> +/* > >> + * Write device file "set_key_colors" > >> + * Set the colors of all keys of the keyboard. 3 bytes per color. > >> + */ > >> +static ssize_t razer_attr_write_set_key_colors(struct device *dev, > >> + struct device_attribute *attr, > >> + const char *buf, size_t count) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + int retval; > >> + > >> + retval = razer_set_key_colors(razer_dev, > >> + (unsigned char *)&buf[0], count); > >> + if (retval != 0) > >> + return retval; > >> + > >> + retval = razer_set_custom_mode(razer_dev); > >> + if (retval != 0) > >> + return retval; > >> + > >> + return count; > >> +} > >> + > >> +/* > >> + * Write device file "mode_none" > >> + * Disable keyboard effects / turns the keyboard LEDs off. > >> + */ > >> +static ssize_t razer_attr_write_mode_none(struct device *dev, > >> + struct device_attribute *attr, > >> + const char *buf, size_t count) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + int retval; > >> + > >> + retval = razer_set_none_mode(razer_dev); > >> + if (retval != 0) > >> + return retval; > >> + > >> + return count; > >> +} > >> + > >> +/* > >> + * Write device file "mode_static" > >> + * Set the keyboard to static mode when 3 RGB bytes are written. > >> + */ > >> +static ssize_t razer_attr_write_mode_static(struct device *dev, > >> + struct device_attribute *attr, > >> + const char *buf, size_t count) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + int retval; > >> + > >> + if (count != 3) { > >> + pr_warn("mode static requires 3 RGB bytes\n"); > >> + return -EINVAL; > >> + } > >> + > >> + retval = razer_set_static_mode(razer_dev, (struct razer_rgb *)&buf[0]); > >> + if (retval != 0) > >> + return retval; > >> + > >> + return count; > >> +} > >> + > >> +/* > >> + * Write device file "mode_custom" > >> + * Sets the keyboard to custom mode whenever the file is written to. > >> + */ > >> +static ssize_t razer_attr_write_mode_custom(struct device *dev, > >> + struct device_attribute *attr, > >> + const char *buf, size_t count) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + int retval; > >> + > >> + retval = razer_set_custom_mode(razer_dev); > >> + if (retval != 0) > >> + return retval; > >> + > >> + return count; > >> +} > >> + > >> +/* > >> + * Write device file "mode_wave" > >> + * If the ASCII number 1 is written then the wave effect is displayed > >> + * moving left across the keyboard. > >> + * If the ASCII number 2 is written then the wave effect goes right. > >> + */ > >> +static ssize_t razer_attr_write_mode_wave(struct device *dev, > >> + struct device_attribute *attr, > >> + const char *buf, size_t count) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + unsigned long temp; > >> + int retval; > >> + > >> + retval = kstrtoul(buf, 10, &temp); > >> + if (retval != 0) { > >> + pr_warn("mode_wave: requires an ASCII number\n"); > >> + return retval; > >> + } > >> + > >> + retval = razer_set_wave_mode(razer_dev, temp); > >> + if (retval != 0) > >> + return retval; > >> + > >> + return count; > >> +} > >> + > >> +/* > >> + * Write device file "mode_spectrum" > >> + * Specrum effect mode is activated whenever the file is written to. > >> + */ > >> +static ssize_t razer_attr_write_mode_spectrum(struct device *dev, > >> + struct device_attribute *attr, > >> + const char *buf, size_t count) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + int retval; > >> + > >> + retval = razer_set_spectrum_mode(razer_dev); > >> + if (retval != 0) > >> + return retval; > >> + > >> + return count; > >> +} > >> + > >> +/* > >> + * Write device file "mode_reactive" > >> + * Sets reactive mode when this file is written to. > >> + * A speed byte and 3 RGB bytes should be written. > >> + * The speed must be within 1-3 > >> + * 1 Short, 2 Medium, 3 Long > >> + */ > >> +static ssize_t razer_attr_write_mode_reactive(struct device *dev, > >> + struct device_attribute *attr, > >> + const char *buf, size_t count) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + int retval; > >> + > >> + if (count != 4) { > >> + pr_warn("mode reactive requires one speed byte followed by 3 RGB bytes\n"); > >> + return -EINVAL; > >> + } > >> + > >> + retval = razer_set_reactive_mode(razer_dev, > >> + (unsigned char)buf[0], > >> + (struct razer_rgb *)&buf[1]); > >> + if (retval != 0) > >> + return retval; > >> + > >> + return count; > >> +} > >> + > >> +/* > >> + * Write device file "mode_starlight" > >> + * Requires at least one byte representing the effect speed. > >> + * The speed must be within 1-3 > >> + * 1 Short, 2 Medium, 3 Long > >> + * > >> + * Starlight mode has 3 modes of operation: > >> + * Mode 1: single color. 3 RGB bytes. > >> + * Mode 2: two colors. 6 RGB bytes. > >> + * Mode 3: random colors. Anything else passed. > >> + */ > >> +static ssize_t razer_attr_write_mode_starlight(struct device *dev, > >> + struct device_attribute *attr, > >> + const char *buf, size_t count) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + struct razer_rgb *color1 = NULL; > >> + struct razer_rgb *color2 = NULL; > >> + int retval; > >> + > >> + if (count < 1) { > >> + pr_warn("mode starlight requires one speed byte\n"); > >> + return -EINVAL; > >> + } > >> + > >> + if (count == 4) { > >> + // Single color mode > >> + color1 = (struct razer_rgb *)&buf[1]; > >> + } else if (count == 7) { > >> + // Dual color mode > >> + color1 = (struct razer_rgb *)&buf[1]; > >> + color2 = (struct razer_rgb *)&buf[4]; > >> + } > >> + > >> + retval = razer_set_starlight_mode(razer_dev, (unsigned char)buf[0], > >> + color1, color2); > >> + if (retval != 0) > >> + return retval; > >> + > >> + return count; > >> +} > >> + > >> +/* > >> + * Write device file "mode_breath" > >> + * Breathing mode has 3 modes of operation. > >> + * Mode 1 fading in and out using a single color. 3 RGB bytes. > >> + * Mode 2 is fading in and out between two colors. 6 RGB bytes. > >> + * Mode 3 is fading in and out between random colors. Anything else passed. > >> + */ > >> +static ssize_t razer_attr_write_mode_breath(struct device *dev, > >> + struct device_attribute *attr, > >> + const char *buf, size_t count) > >> +{ > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + struct razer_rgb *color1 = NULL; > >> + struct razer_rgb *color2 = NULL; > >> + int retval; > >> + > >> + if (count == 3) { > >> + // Single color mode > >> + color1 = (struct razer_rgb *)&buf[0]; > >> + } else if (count == 6) { > >> + // Dual color mode > >> + color1 = (struct razer_rgb *)&buf[0]; > >> + color2 = (struct razer_rgb *)&buf[3]; > >> + } > >> + > >> + retval = razer_set_breath_mode(razer_dev, color1, color2); > >> + if (retval != 0) > >> + return retval; > >> + > >> + return count; > >> +} > >> + > >> +//######################################// > >> +//### Set up the device driver files ###// > >> +//######################################// > >> + > >> +/* > >> + * Read only is 0444 > >> + * Write only is 0220 > >> + * Read and write is 0664 > >> + */ > >> + > >> +static DEVICE_ATTR(get_serial, 0444, razer_attr_read_get_serial, NULL); > >> +static DEVICE_ATTR(get_firmware_version, 0444, razer_attr_read_get_firmware_version, NULL); > >> +static DEVICE_ATTR(device_type, 0444, razer_attr_read_device_type, NULL); > >> +static DEVICE_ATTR(brightness, 0664, razer_attr_read_brightness, razer_attr_write_brightness); > >> + > >> +static DEVICE_ATTR(fn_mode, 0664, razer_attr_read_fn_mode, razer_attr_write_fn_mode); > >> +static DEVICE_ATTR(set_logo, 0220, NULL, razer_attr_write_set_logo); > >> +static DEVICE_ATTR(set_key_colors, 0220, NULL, razer_attr_write_set_key_colors); > >> +static DEVICE_ATTR(get_key_rows, 0444, razer_attr_read_get_key_rows, NULL); > >> +static DEVICE_ATTR(get_key_columns, 0444, razer_attr_read_get_key_columns, NULL); > >> + > >> +static DEVICE_ATTR(mode_none, 0220, NULL, razer_attr_write_mode_none); > >> +static DEVICE_ATTR(mode_static, 0220, NULL, razer_attr_write_mode_static); > >> +static DEVICE_ATTR(mode_custom, 0220, NULL, razer_attr_write_mode_custom); > >> +static DEVICE_ATTR(mode_wave, 0220, NULL, razer_attr_write_mode_wave); > >> +static DEVICE_ATTR(mode_spectrum, 0220, NULL, razer_attr_write_mode_spectrum); > >> +static DEVICE_ATTR(mode_reactive, 0220, NULL, razer_attr_write_mode_reactive); > >> +static DEVICE_ATTR(mode_breath, 0220, NULL, razer_attr_write_mode_breath); > >> +static DEVICE_ATTR(mode_starlight, 0220, NULL, razer_attr_write_mode_starlight); > >> + > >> +//#############################// > >> +//### Driver Main Functions ###// > >> +//#############################// > >> + > >> +/* > >> + * Initialize a razer_data struct. > >> + */ > >> +int razer_init_data(struct razer_data *data) > >> +{ > >> + // Set all values to an unset state. > >> + data->macro_keys_state = -1; > >> + data->fn_mode_state = -1; > >> + > >> + return 0; > >> +} > >> + > >> +/* > >> + * Sets the device to the specific states if set. > >> + */ > >> +int razer_load_states(struct razer_device *razer_dev) > >> +{ > >> + int retval; > >> + struct razer_data *data = razer_dev->data; > >> + > >> + if (!data) > >> + return 0; > >> + > >> + // Enable the macro keys if required. > >> + if (data->macro_keys_state == 1) { > >> + retval = razer_activate_macro_keys(razer_dev); > >> + if (retval != 0) > >> + return retval; > >> + } > >> + > >> + // Set the FN mode if required. > >> + if (data->fn_mode_state >= 0) { > >> + retval = razer_set_fn_mode(razer_dev, > >> + (unsigned char)data->fn_mode_state); > >> + if (retval != 0) > >> + return retval; > >> + } > >> + > >> + return 0; > >> +} > >> + > >> +/* > >> + * Probe method is ran whenever a device is bound to the driver. > >> + */ > >> +static int razer_probe(struct hid_device *hdev, > >> + const struct hid_device_id *id) > >> +{ > >> + int retval; > >> + struct device *dev = &hdev->dev; > >> + struct usb_interface *intf = to_usb_interface(dev->parent); > >> + struct usb_device *usb_dev = interface_to_usbdev(intf); > >> + struct razer_device *razer_dev; > >> + struct razer_data *data; > >> + const unsigned int product_id = usb_dev->descriptor.idProduct; > >> + > >> + razer_dev = kzalloc(sizeof(*razer_dev), GFP_KERNEL); > >> + if (!razer_dev) { > >> + hid_err(hdev, "can't alloc razer device descriptor\n"); > >> + return -ENOMEM; > >> + } > >> + > >> + retval = razer_init_device(razer_dev, usb_dev); > >> + if (retval != 0) { > >> + hid_err(hdev, "failed to initialize razer device descriptor\n"); > >> + goto exit_free_razer_dev; > >> + } > >> + > >> + data = kzalloc(sizeof(*data), GFP_KERNEL); > >> + if (!data) { > >> + hid_err(hdev, "can't alloc razer data\n"); > >> + retval = -ENOMEM; > >> + goto exit_free_razer_dev; > >> + } > >> + > >> + retval = razer_init_data(data); > >> + if (retval != 0) { > >> + hid_err(hdev, "failed to initialize razer data\n"); > >> + goto exit_free; > >> + } > >> + > >> + dev_set_drvdata(dev, razer_dev); > >> + razer_dev->data = data; > >> + razer_dev->report_index = RAZER_DEFAULT_REPORT_INDEX; > >> + > >> + // Default files > >> + retval = device_create_file(dev, &dev_attr_get_serial); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_get_firmware_version); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_device_type); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_brightness); > >> + if (retval) > >> + goto exit_free; > >> + > >> + // Custom files depending on the device support. > >> + // ############################################# > >> + if (product_id == USB_DEVICE_ID_RAZER_BLADE_STEALTH_2016 || > >> + product_id == USB_DEVICE_ID_RAZER_BLADE_14_2016) { > >> + // Set the default fn mode state. > >> + data->fn_mode_state = 1; > >> + > >> + retval = device_create_file(dev, &dev_attr_fn_mode); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_get_key_rows); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_get_key_columns); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_set_logo); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_set_key_colors); > >> + if (retval) > >> + goto exit_free; > >> + > >> + // Modes > >> + retval = device_create_file(dev, &dev_attr_mode_none); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_mode_static); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_mode_custom); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_mode_wave); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_mode_spectrum); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_mode_reactive); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_mode_breath); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_mode_starlight); > >> + if (retval) > >> + goto exit_free; > >> + } else if (product_id == USB_DEVICE_ID_RAZER_BLACKWIDOW_CHROMA) { > >> + // Enable the macro keys state. > >> + data->macro_keys_state = 1; > >> + > >> + retval = device_create_file(dev, &dev_attr_get_key_rows); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_get_key_columns); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_set_key_colors); > >> + if (retval) > >> + goto exit_free; > >> + > >> + // Modes > >> + retval = device_create_file(dev, &dev_attr_mode_none); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_mode_static); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_mode_custom); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_mode_wave); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_mode_spectrum); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_mode_reactive); > >> + if (retval) > >> + goto exit_free; > >> + retval = device_create_file(dev, &dev_attr_mode_breath); > >> + if (retval) > >> + goto exit_free; > >> + } > >> + > >> + retval = hid_parse(hdev); > >> + if (retval) { > >> + hid_err(hdev, "parse failed\n"); > >> + goto exit_free; > >> + } > >> + retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT); > >> + if (retval) { > >> + hid_err(hdev, "hw start failed\n"); > >> + goto exit_free; > >> + } > >> + > >> + usb_disable_autosuspend(usb_dev); > >> + > >> + // Finally load any set states. Ignore errors. They are not fatal. > >> + // Errors will be logged. > >> + razer_load_states(razer_dev); > >> + > >> + return 0; > >> +exit_free: > >> + kfree(data); > >> +exit_free_razer_dev: > >> + kfree(razer_dev); > >> + return retval; > >> +} > >> + > >> +/* > >> + * Driver unbind function. > >> + */ > >> +static void razer_disconnect(struct hid_device *hdev) > >> +{ > >> + struct device *dev = &hdev->dev; > >> + struct usb_interface *intf = to_usb_interface(dev->parent); > >> + struct usb_device *usb_dev = interface_to_usbdev(intf); > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + struct razer_data *data = razer_dev->data; > >> + const unsigned int product_id = usb_dev->descriptor.idProduct; > >> + > >> + // Remove the default files > >> + device_remove_file(dev, &dev_attr_get_firmware_version); > >> + device_remove_file(dev, &dev_attr_get_serial); > >> + device_remove_file(dev, &dev_attr_device_type); > >> + device_remove_file(dev, &dev_attr_brightness); > >> + > >> + // Custom files depending on the device support. > >> + // ############################################# > >> + if (product_id == USB_DEVICE_ID_RAZER_BLADE_STEALTH_2016 || > >> + product_id == USB_DEVICE_ID_RAZER_BLADE_14_2016) { > >> + device_remove_file(dev, &dev_attr_fn_mode); > >> + device_remove_file(dev, &dev_attr_get_key_rows); > >> + device_remove_file(dev, &dev_attr_get_key_columns); > >> + device_remove_file(dev, &dev_attr_set_logo); > >> + device_remove_file(dev, &dev_attr_set_key_colors); > >> + > >> + // Modes > >> + device_remove_file(dev, &dev_attr_mode_none); > >> + device_remove_file(dev, &dev_attr_mode_static); > >> + device_remove_file(dev, &dev_attr_mode_custom); > >> + device_remove_file(dev, &dev_attr_mode_wave); > >> + device_remove_file(dev, &dev_attr_mode_spectrum); > >> + device_remove_file(dev, &dev_attr_mode_reactive); > >> + device_remove_file(dev, &dev_attr_mode_breath); > >> + device_remove_file(dev, &dev_attr_mode_starlight); > >> + } else if (product_id == USB_DEVICE_ID_RAZER_BLACKWIDOW_CHROMA) { > >> + device_remove_file(dev, &dev_attr_get_key_rows); > >> + device_remove_file(dev, &dev_attr_get_key_columns); > >> + device_remove_file(dev, &dev_attr_set_key_colors); > >> + > >> + // Modes > >> + device_remove_file(dev, &dev_attr_mode_none); > >> + device_remove_file(dev, &dev_attr_mode_static); > >> + device_remove_file(dev, &dev_attr_mode_custom); > >> + device_remove_file(dev, &dev_attr_mode_wave); > >> + device_remove_file(dev, &dev_attr_mode_spectrum); > >> + device_remove_file(dev, &dev_attr_mode_reactive); > >> + device_remove_file(dev, &dev_attr_mode_breath); > >> + } > >> + > >> + hid_hw_stop(hdev); > >> + kfree(razer_dev); > >> + kfree(data); > >> + dev_info(dev, "razer device disconnected\n"); > >> +} > >> + > >> +//################################// > >> +//### Power Management Support ###// > >> +//################################// > >> + > >> +#ifdef CONFIG_PM > >> + > >> +/* > >> + * Called when the device is going to be suspended. > >> + */ > >> +static int razer_suspend(struct hid_device *hdev, pm_message_t message) > >> +{ > >> + return 0; > >> +} > >> + > >> +/* > >> + * Called when the device is being resumed by the system. > >> + */ > >> +static int razer_resume(struct hid_device *hdev) > >> +{ > >> + struct device *dev = &hdev->dev; > >> + struct razer_device *razer_dev = dev_get_drvdata(dev); > >> + > >> + // Load any set states. Ignore errors. They are not fatal. > >> + // Errors will be logged. > >> + razer_load_states(razer_dev); > >> + > >> + return 0; > >> +} > >> + > >> +/* > >> + * Called when the suspended device has been reset instead of being resumed. > >> + */ > >> +static int razer_reset_resume(struct hid_device *hdev) > >> +{ > >> + return razer_resume(hdev); > >> +} > >> + > >> +#endif > >> + > >> +//###############################// > >> +//### Device ID mapping table ###// > >> +//###############################// > >> + > >> +static const struct hid_device_id razer_devices[] = { > >> + { HID_USB_DEVICE(USB_VENDOR_ID_RAZER, USB_DEVICE_ID_RAZER_BLADE_STEALTH_2016) }, > >> + { HID_USB_DEVICE(USB_VENDOR_ID_RAZER, USB_DEVICE_ID_RAZER_BLADE_14_2016) }, > >> + { HID_USB_DEVICE(USB_VENDOR_ID_RAZER, USB_DEVICE_ID_RAZER_BLACKWIDOW_CHROMA) }, > >> + { } > >> +}; > >> + > >> +MODULE_DEVICE_TABLE(hid, razer_devices); > >> + > >> +//############################################// > >> +//### Describes the contents of the driver ###// > >> +//############################################// > >> + > >> +static struct hid_driver razer_driver = { > >> + .name = "hid-razer", > >> + .id_table = razer_devices, > >> + > >> +#ifdef CONFIG_PM > >> + .suspend = razer_suspend, > >> + .resume = razer_resume, > >> + .reset_resume = razer_reset_resume, > >> +#endif > >> + > >> + .probe = razer_probe, > >> + .remove = razer_disconnect > >> +}; > >> + > >> +module_hid_driver(razer_driver); > >> diff --git a/drivers/hid/hid-razer.h b/drivers/hid/hid-razer.h > >> new file mode 100644 > >> index 0000000..1a1c92e > >> --- /dev/null > >> +++ b/drivers/hid/hid-razer.h > >> @@ -0,0 +1,48 @@ > >> +/* > >> + * Razer Kernel Drivers > >> + * Copyright (c) 2016 Roland Singer <roland.singer@xxxxxxxxxxxxx> > >> + * Based on Tim Theede <pez2001@xxxxxxxxxxxxxxxxx> razer_chroma_drivers project. > >> + * > >> + * This program is free software; you can redistribute it and/or modify > >> + * it under the terms of the GNU General Public License as published by > >> + * the Free Software Foundation; either version 2 of the License, or > >> + * (at your option) any later version. > >> + * > >> + * This program is distributed in the hope that it will be useful, > >> + * but WITHOUT ANY WARRANTY; without even the implied warranty of > >> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > >> + * GNU General Public License for more details. > >> + */ > >> + > >> +#ifndef __HID_RAZER_H > >> +#define __HID_RAZER_H > >> + > >> +#include <linux/types.h> > >> + > >> +//#################// > >> +//### Constants ###// > >> +//#################// > >> + > >> +// Report indexes. > >> +#define RAZER_DEFAULT_REPORT_INDEX 0x02 > >> + > >> +// Keyboard rows and columns: > >> +#define RAZER_STEALTH_2016_ROWS 0x06 > >> +#define RAZER_STEALTH_2016_COLUMNS 0x10 > >> + > >> +#define RAZER_BLADE_14_2016_ROWS 0x06 > >> +#define RAZER_BLADE_14_2016_COLUMNS 0x10 > >> + > >> +#define RAZER_BLACKWIDOW_CHROMA_ROWS 0x06 > >> +#define RAZER_BLACKWIDOW_CHROMA_COLUMNS 0x16 > >> + > >> +//#############// > >> +//### Types ###// > >> +//#############// > >> + > >> +struct razer_data { > >> + char macro_keys_state; > >> + char fn_mode_state; > >> +}; > >> + > >> +#endif // __HID_RAZER_H > > > > This is not a full review, but I hope you will find it useful anyway. > > > > Cheers, > > Benjamin > > > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-input" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
