Adds fan/pwm support for H1000i platinum. Custom temp/fan curves are not supported, however the presets found in the proprietary drivers are avaiable. Signed-off-by: Jaap Aarts <jaap.aarts1@xxxxxxxxx> --- drivers/hwmon/Kconfig | 6 + drivers/hwmon/Makefile | 1 + drivers/hwmon/asetek_gen6.c | 801 ++++++++++++++++++++++++++++++++++++ 3 files changed, 808 insertions(+) create mode 100644 drivers/hwmon/asetek_gen6.c diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 288ae9f63588..521a9e0c88ca 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -378,6 +378,12 @@ config SENSORS_ARM_SCPI and power sensors available on ARM Ltd's SCP based platforms. The actual number and type of sensors exported depend on the platform. +config SENSORS_ASETEK_GEN6 + tristate "Asetek generation 6 driver" + help + If you say yes here you get support for asetek generation 6 boards + found on most AIO liquid coolers with an asetek pump. + config SENSORS_ASB100 tristate "Asus ASB100 Bach" depends on X86 && I2C diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 3e32c21f5efe..9683d2aae2b2 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -20,6 +20,7 @@ obj-$(CONFIG_SENSORS_W83793) += w83793.o obj-$(CONFIG_SENSORS_W83795) += w83795.o obj-$(CONFIG_SENSORS_W83781D) += w83781d.o obj-$(CONFIG_SENSORS_W83791D) += w83791d.o +obj-$(CONFIG_SENSORS_ASETEK_GEN6) += asetek_gen6.o obj-$(CONFIG_SENSORS_AB8500) += abx500.o ab8500.o obj-$(CONFIG_SENSORS_ABITUGURU) += abituguru.o diff --git a/drivers/hwmon/asetek_gen6.c b/drivers/hwmon/asetek_gen6.c new file mode 100644 index 000000000000..4aea9ae0b944 --- /dev/null +++ b/drivers/hwmon/asetek_gen6.c @@ -0,0 +1,801 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * A hwmon driver for most asetek gen 6 all-in-one liquid coolers. + * Copyright (c) Jaap Aarts 2020 + * + * Protocol reverse engineered by audiohacked + * https://github.com/audiohacked/OpendriverLink + */ + +/* + * Supports following chips: + * h100i platinum + * + * Other products should work with this driver but no testing has been done. + * + * Note: platinum is the codename name for pro within driver, so h100i platinum = h1ooi pro + * + * Note: fan curve control has not been implemented + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/usb.h> +#include <linux/slab.h> +#include <linux/mutex.h> +#include <linux/errno.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> + +struct driver { + struct usb_device *udev; + + char *bulk_out_buffer; + char *bulk_in_buffer; + size_t bulk_out_size; + size_t bulk_in_size; + char bulk_in_endpointAddr; + char bulk_out_endpointAddr; + + struct usb_interface *interface; /* the interface for this device */ + struct mutex io_mutex; /* synchronize I/O with disconnect */ + struct semaphore + limit_sem; /* limiting the number of writes in progress */ + + struct kref kref; +}; + +struct curve_point { + uint8_t temp; + uint8_t pwm; +}; + +struct hwmon_fan_data { + char fan_channel; + long fan_target; + unsigned char fan_pwm_target; + long mode; + struct curve_point curve[7]; +}; + +struct hwmon_data { + struct driver *dev; + int channel_count; + void **channel_data; +}; + +struct curve_point quiet_curve[] = { + { + .temp = 0x1F, + .pwm = 0x15, + }, + { + .temp = 0x21, + .pwm = 0x1E, + }, + { + .temp = 0x24, + .pwm = 0x25, + }, + { + .temp = 0x27, + .pwm = 0x2D, + }, + { + .temp = 0x29, + .pwm = 0x38, + }, + { + .temp = 0x2C, + .pwm = 0x4A, + }, + { + .temp = 0x2F, + .pwm = 0x64, + }, +}; + +struct curve_point balanced_curve[] = { + { + .temp = 0x1C, + .pwm = 0x15, + }, + { + .temp = 0x1E, + .pwm = 0x1B, + }, + { + .temp = 0x20, + .pwm = 0x23, + }, + { + .temp = 0x22, + .pwm = 0x28, + }, + { + .temp = 0x24, + .pwm = 0x32, + }, + { + .temp = 0x27, + .pwm = 0x48, + }, + { + .temp = 0x29, + .pwm = 0x64, + }, +}; + +struct curve_point extreme_curve[] = { + { + .temp = 0x19, + .pwm = 0x28, + }, + { + .temp = 0x1B, + .pwm = 0x2E, + }, + { + .temp = 0x1D, + .pwm = 0x37, + }, + { + .temp = 0x1E, + .pwm = 0x41, + }, + { + .temp = 0x1F, + .pwm = 0x4C, + }, + { + .temp = 0x20, + .pwm = 0x56, + }, + { + .temp = 0x21, + .pwm = 0x64, + }, +}; + +#define default_curve quiet_curve + +static const char SUCCESS[2] = { 0x12, 0x34 }; + +#define SUCCES_LENGTH 3 + +static bool check_succes(char command, char ret[SUCCES_LENGTH]) +{ + char success[SUCCES_LENGTH] = { command }; + + strncpy(&success[1], SUCCESS, SUCCES_LENGTH - 1); + return strncmp(ret, success, SUCCES_LENGTH - 1) == 0; +} + +int set_fan_rpm_curve(struct driver *cdev, struct hwmon_fan_data *fan_data, + struct curve_point point[7]) +{ + int retval; + int wrote; + int sndpipe = usb_sndbulkpipe(cdev->udev, cdev->bulk_out_endpointAddr); + int rcvpipe = usb_rcvbulkpipe(cdev->udev, cdev->bulk_in_endpointAddr); + char *send_buf = cdev->bulk_out_buffer; + char *recv_buf = cdev->bulk_in_buffer; + + memcpy(fan_data->curve, point, sizeof(fan_data->curve)); + + send_buf[0] = 0x40; + send_buf[1] = fan_data->fan_channel; + send_buf[2] = point[0].temp; + send_buf[3] = point[1].temp; + send_buf[4] = point[2].temp; + send_buf[5] = point[3].temp; + send_buf[6] = point[4].temp; + send_buf[7] = point[5].temp; + send_buf[8] = point[6].temp; + send_buf[9] = point[0].pwm; + send_buf[10] = point[1].pwm; + send_buf[11] = point[2].pwm; + send_buf[12] = point[3].pwm; + send_buf[13] = point[4].pwm; + send_buf[14] = point[5].pwm; + send_buf[15] = point[6].pwm; + + retval = usb_bulk_msg(cdev->udev, sndpipe, send_buf, 16, &wrote, 100); + if (retval != 0) + return retval; + + retval = usb_bulk_msg(cdev->udev, rcvpipe, recv_buf, 4, &wrote, 100); + if (retval != 0) + return retval; + + if (!check_succes(send_buf[0], recv_buf)) + dev_info("[*] Failled setting fan curve %d,%d,%d/%d\n", + recv_buf[0], recv_buf[1], recv_buf[2], recv_buf[3]); + return 0; +} + +int set_fan_target_rpm(struct driver *cdev, struct hwmon_fan_data *fan_data, + long val) +{ + int retval; + int wrote; + int sndpipe = usb_sndbulkpipe(cdev->udev, cdev->bulk_out_endpointAddr); + int rcvpipe = usb_rcvbulkpipe(cdev->udev, cdev->bulk_in_endpointAddr); + + char *send_buf = cdev->bulk_out_buffer; + char *recv_buf = cdev->bulk_in_buffer; + + fan_data->fan_target = val; + fan_data->fan_pwm_target = 0; + + send_buf[0] = 0x43; + send_buf[1] = fan_data->fan_channel; + send_buf[2] = (fan_data->fan_target >> 8); + send_buf[3] = fan_data->fan_target; + + retval = usb_bulk_msg(cdev->udev, sndpipe, send_buf, 4, &wrote, 100); + if (retval != 0) + return retval; + + retval = usb_bulk_msg(cdev->udev, rcvpipe, recv_buf, 6, &wrote, 100000); + if (retval != 0) + return retval; + + //no error + if (!check_succes(send_buf[0], recv_buf)) + dev_info("[*] Failled setting fan rpm %d,%d,%d/%d\n", + recv_buf[0], recv_buf[1], recv_buf[2], recv_buf[3]); + return 0; +} + +void get_fan_target_rpm(struct hwmon_fan_data *fan_data, long *val) +{ + *val = fan_data->fan_target; +} + +int get_fan_current_rpm(struct driver *cdev, struct hwmon_fan_data *fan_data, + long *val) +{ + int retval; + int wrote; + int sndpipe = usb_sndbulkpipe(cdev->udev, cdev->bulk_out_endpointAddr); + int rcvpipe = usb_rcvbulkpipe(cdev->udev, cdev->bulk_in_endpointAddr); + + char *send_buf = cdev->bulk_out_buffer; + char *recv_buf = cdev->bulk_in_buffer; + + send_buf[0] = 0x41; + send_buf[1] = fan_data->fan_channel; + + retval = usb_bulk_msg(cdev->udev, sndpipe, send_buf, 2, &wrote, 100); + if (retval != 0) + return retval; + + retval = usb_bulk_msg(cdev->udev, rcvpipe, recv_buf, 6, &wrote, 100); + if (retval != 0) + return retval; + + if (!check_succes(0x41, recv_buf) || + recv_buf[3] != fan_data->fan_channel) + dev_info("[*] Failled retrieving fan rmp %d,%d,%d/%d\n", + recv_buf[0], recv_buf[1], recv_buf[2], recv_buf[3]); + + *val = (((uint8_t)recv_buf[4]) << 8) + (uint8_t)recv_buf[5]; + return 0; +} + +int set_fan_target_pwm(struct driver *cdev, struct hwmon_fan_data *fan_data, + long val) +{ + int retval; + int wrote; + int sndpipe = usb_sndbulkpipe(cdev->udev, cdev->bulk_out_endpointAddr); + int rcvpipe = usb_rcvbulkpipe(cdev->udev, cdev->bulk_in_endpointAddr); + + unsigned char *send_buf = cdev->bulk_out_buffer; + unsigned char *recv_buf = cdev->bulk_in_buffer; + + fan_data->fan_pwm_target = val; + fan_data->fan_target = 0; + + send_buf[0] = 0x42; + send_buf[1] = fan_data->fan_channel; + send_buf[3] = fan_data->fan_pwm_target; + + retval = usb_bulk_msg(cdev->udev, sndpipe, send_buf, 4, &wrote, 100); + if (retval != 0) + return retval; + + retval = usb_bulk_msg(cdev->udev, rcvpipe, recv_buf, 6, &wrote, 100000); + if (retval != 0) + return retval; + + //no error + if (!check_succes(send_buf[0], recv_buf)) + dev_info("[*] Failled setting fan pwm %d,%d,%d/%d\n", + recv_buf[0], recv_buf[1], recv_buf[2], recv_buf[3]); + return 0; +} + +umode_t is_visible_func(const void *d, enum hwmon_sensor_types type, u32 attr, + int channel) +{ + switch (type) { + case hwmon_fan: + switch (attr) { + case hwmon_fan_input: + return 0444; + break; + case hwmon_fan_target: + return 0644; + break; + case hwmon_fan_min: + return 0444; + break; + default: + break; + } + break; + case hwmon_pwm: + switch (attr) { + case hwmon_pwm_input: + return 0200; + break; + case hwmon_pwm_mode: + return 0644; + break; + default: + break; + } + break; + + default: + break; + } + return 0; +} + +static int write_func(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long val) +{ + struct hwmon_data *data = dev_get_drvdata(dev); + struct driver *cdev = data->dev; + struct hwmon_fan_data *fan_data; + int retval = 0; + + switch (type) { + case hwmon_fan: + switch (attr) { + case hwmon_fan_target: + fan_data = data->channel_data[channel]; + if (fan_data->mode != 1) + return -EINVAL; + + retval = usb_autopm_get_interface(cdev->interface); + if (retval) + goto exit; + + if (down_trylock(&cdev->limit_sem)) { + retval = -EAGAIN; + goto cleanup_interface; + } + + retval = set_fan_target_rpm(cdev, fan_data, val); + if (retval) + goto cleanup; + + goto exit; + default: + return -EINVAL; + } + goto exit; + case hwmon_pwm: + switch (attr) { + case hwmon_pwm_input: + fan_data = data->channel_data[channel]; + if (fan_data->mode != 1) + return -EINVAL; + + retval = usb_autopm_get_interface(cdev->interface); + if (retval) + goto exit; + + if (down_trylock(&cdev->limit_sem)) { + retval = -EAGAIN; + goto cleanup_interface; + } + + retval = set_fan_target_pwm(cdev, fan_data, val); + if (retval) + return retval; + + goto cleanup; + case hwmon_pwm_enable: + fan_data = data->channel_data[channel]; + + retval = usb_autopm_get_interface(cdev->interface); + if (retval) + goto exit; + + if (down_trylock(&cdev->limit_sem)) { + retval = -EAGAIN; + goto cleanup_interface; + } + fan_data->mode = val; + + switch (val) { + case 0: + set_fan_rpm_curve(cdev, fan_data, + default_curve); + break; + case 1: + if (fan_data->fan_target != 0) { + retval = set_fan_target_rpm( + cdev, fan_data, + fan_data->fan_target); + if (retval) + goto cleanup; + } else if (fan_data->fan_pwm_target != 0) { + retval = set_fan_target_pwm( + cdev, fan_data, + fan_data->fan_pwm_target); + if (retval) + goto cleanup; + } + break; + case 2: + set_fan_rpm_curve(cdev, fan_data, quiet_curve); + break; + case 3: + set_fan_rpm_curve(cdev, fan_data, + balanced_curve); + break; + case 4: + set_fan_rpm_curve(cdev, fan_data, + extreme_curve); + break; + } + goto cleanup; + default: + return -EINVAL; + } + goto exit; + default: + return -EINVAL; + } + +cleanup: + up(&cdev->limit_sem); +cleanup_interface: + usb_autopm_put_interface(cdev->interface); +exit: + return retval; +} + +int read_func(struct device *dev, enum hwmon_sensor_types type, u32 attr, + int channel, long *val) +{ + struct hwmon_data *data = dev_get_drvdata(dev); + struct driver *cdev = data->dev; + struct hwmon_fan_data *fan_data; + int retval = 0; + + if (channel >= data->channel_count) + return -EAGAIN; + + switch (type) { + case hwmon_fan: + switch (attr) { + case hwmon_fan_input: + fan_data = data->channel_data[channel]; + + retval = usb_autopm_get_interface(cdev->interface); + if (retval) + goto exit; + + if (down_trylock(&cdev->limit_sem)) { + retval = -EAGAIN; + goto cleanup_interface; + } + + retval = get_fan_current_rpm(cdev, fan_data, val); + if (retval) + goto cleanup; + + goto cleanup; + case hwmon_fan_target: + fan_data = data->channel_data[channel]; + if (fan_data->mode != 1) { + *val = 0; + goto exit; + } + + get_fan_target_rpm(fan_data, val); + goto exit; + case hwmon_fan_min: + *val = 200; + goto exit; + + default: + return -EINVAL; + } + goto exit; + + case hwmon_pwm: + switch (attr) { + case hwmon_pwm_mode: + fan_data = data->channel_data[channel]; + *val = fan_data->mode; + goto exit; + default: + return -EINVAL; + } + goto exit; + + default: + return -EINVAL; + } + +cleanup: + up(&cdev->limit_sem); +cleanup_interface: + usb_autopm_put_interface(cdev->interface); +exit: + return retval; +} + +#define fan_config (HWMON_F_INPUT | HWMON_F_TARGET | HWMON_F_MIN) +#define pwm_config (HWMON_PWM_INPUT | HWMON_PWM_ENABLE) + +static const struct hwmon_ops asetek_6_ops = { + .is_visible = is_visible_func, + .read = read_func, + .write = write_func, +}; + +bool does_fan_exist(struct driver *cdev, int channel) +{ + int retval; + int wrote; + int sndpipe = usb_sndbulkpipe(cdev->udev, cdev->bulk_out_endpointAddr); + int rcvpipe = usb_rcvbulkpipe(cdev->udev, cdev->bulk_in_endpointAddr); + + char *send_buf = cdev->bulk_out_buffer; + char *recv_buf = cdev->bulk_in_buffer; + + send_buf[0] = 0x43; + send_buf[1] = channel; + send_buf[2] = (600 >> 8); + send_buf[3] = 600; + + retval = usb_bulk_msg(cdev->udev, sndpipe, send_buf, 4, &wrote, 100); + if (retval != 0) + return false; + + retval = usb_bulk_msg(cdev->udev, rcvpipe, recv_buf, 6, &wrote, 100000); + if (retval != 0) + return false; + + if (!check_succes(send_buf[0], recv_buf)) + return false; + return true; +} + +int get_fan_count(struct driver *dev) +{ + int fan; + + for (fan = 0; does_fan_exist(dev, fan); fan += 1) + ; + return fan; +} + +void hwmon_init(struct driver *dev) +{ + int fan_id; + struct device *hwmon_dev; + struct hwmon_fan_data *fan; + struct hwmon_data *data = devm_kzalloc( + &dev->udev->dev, sizeof(struct hwmon_data), GFP_KERNEL); + struct hwmon_chip_info *hwmon_info = devm_kzalloc( + &dev->udev->dev, sizeof(struct hwmon_chip_info), GFP_KERNEL); + //Allocate the info table + struct hwmon_channel_info **aio_info = + devm_kzalloc(&dev->udev->dev, + sizeof(struct hwmon_channel_info *) * 2, + GFP_KERNEL); //2 for each channel info. + + //Allocate the fan and PWM configuration + u32 *fans_config = devm_kzalloc(&dev->udev->dev, + sizeof(u32) * (data->channel_count + 1), + GFP_KERNEL); + u32 *pwms_config = devm_kzalloc(&dev->udev->dev, + sizeof(u32) * (data->channel_count + 1), + GFP_KERNEL); + + data->channel_count = get_fan_count(dev); //amount of fans + data->channel_data = + devm_kzalloc(&dev->udev->dev, + sizeof(char *) * data->channel_count, GFP_KERNEL); + + //For each fan create a data channel a fan config entry and a pwm config entry + for (fan_id = 0; fan_id <= data->channel_count; fan_id++) { + fan = devm_kzalloc(&dev->udev->dev, + sizeof(struct hwmon_fan_data), GFP_KERNEL); + fan->fan_channel = fan_id; + fan->mode = 2; + data->channel_data[fan_id] = fan; + fans_config[fan_id] = fan_config; + pwms_config[fan_id] = pwm_config; + } + fans_config[data->channel_count] = 0; + pwms_config[data->channel_count] = 0; + + aio_info[0] = devm_kzalloc( + &dev->udev->dev, sizeof(struct hwmon_channel_info), GFP_KERNEL); + aio_info[0]->type = hwmon_fan; + aio_info[0]->config = fans_config; + + aio_info[1] = devm_kzalloc( + &dev->udev->dev, sizeof(struct hwmon_channel_info), GFP_KERNEL); + aio_info[1]->type = hwmon_pwm; + aio_info[1]->config = pwms_config; + + hwmon_info->ops = &asetek_6_ops; + hwmon_info->info = (const struct hwmon_channel_info **)aio_info; + + data->dev = dev; + hwmon_dev = devm_hwmon_device_register_with_info( + &dev->udev->dev, "driver_fan", data, hwmon_info, NULL); + dev_info("[*] Setup hwmon\n"); +} + +void hwmon_deinit(struct driver *dev) +{ + hwmon_device_unregister(&dev->udev->dev); + dev_info("[*] HWMON DISCONNECT\n"); +} + +/* + * Devices that work with this driver. + * More devices should work, however none have been tested. + */ +static const struct usb_device_id astk_table[] = { + { USB_DEVICE(0x1b1c, 0x0c15) }, + {}, +}; + +MODULE_DEVICE_TABLE(usb, astk_table); + +int init_device(struct usb_device *udev) +{ + int retval; + + retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x00, 0x40, + 0xffff, 0x0000, 0, 0, 0); + //this always returns error + if (retval != 0) + ; + + retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x02, 0x40, + 0x0002, 0x0000, 0, 0, 0); + if (retval != 0) + return retval; + + return 0; +} + +int deinit_device(struct usb_device *udev) +{ + int retval = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x02, 0x40, + 0x0004, 0x0000, 0, 0, 0); + if (retval != 0) + return retval; + + return 0; +} + +static void astk_delete(struct kref *kref) +{ + struct driver *dev = container_of(kref, struct driver, kref); + + usb_put_intf(dev->interface); + usb_put_dev(dev->udev); + kfree(dev->bulk_in_buffer); + kfree(dev->bulk_out_buffer); + kfree(dev); +} + +static int astk_probe(struct usb_interface *interface, + const struct usb_device_id *id) +{ + struct driver *dev; + int retval = 0; + struct usb_endpoint_descriptor *bulk_in, *bulk_out; + + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) { + retval = -ENOMEM; + goto exit; + } + + retval = usb_find_common_endpoints(interface->cur_altsetting, &bulk_in, + &bulk_out, NULL, NULL); + if (retval != 0) + goto exit; + + dev->udev = usb_get_dev(interface_to_usbdev(interface)); + dev->interface = usb_get_intf(interface); + + /* set up the endpoint information */ + /* use only the first bulk-in and bulk-out endpoints */ + dev->bulk_in_size = usb_endpoint_maxp(bulk_in); + dev->bulk_in_buffer = kmalloc(dev->bulk_in_size, GFP_KERNEL); + dev->bulk_in_endpointAddr = bulk_in->bEndpointAddress; + dev->bulk_out_size = usb_endpoint_maxp(bulk_out); + dev->bulk_out_buffer = kmalloc(dev->bulk_out_size, GFP_KERNEL); + dev->bulk_out_endpointAddr = bulk_out->bEndpointAddress; + + retval = init_device(dev->udev); + if (retval) { + dev_err(&interface->dev, "Failled initialising this device.\n"); + goto exit; + } + + hwmon_init(dev); + + usb_set_intfdata(interface, dev); + kref_init(&dev->kref); + mutex_init(&dev->io_mutex); + sema_init(&dev->limit_sem, 8); +exit: + return retval; +} + +static void astk_disconnect(struct usb_interface *interface) +{ + struct driver *dev = usb_get_intfdata(interface); + + hwmon_deinit(dev); + usb_set_intfdata(interface, NULL); + kref_put(&dev->kref, astk_delete); + deinit_device(dev->udev); +} +static int astk_resume(struct usb_interface *intf) +{ + return 0; +} + +static int astk_suspend(struct usb_interface *intf, pm_message_t message) +{ + return 0; +} + +static struct usb_driver astk_driver = { + .name = "Asetek gen6 driver", + .id_table = astk_table, + .probe = astk_probe, + .disconnect = astk_disconnect, + .resume = astk_resume, + .suspend = astk_suspend, + .supports_autosuspend = 1, +}; + +static int __init astk_init(void) +{ + int ret = usb_register(&astk_driver); + + return ret; +} + +static void __exit astk_exit(void) +{ + usb_deregister(&astk_driver); +} + +module_init(astk_init); +module_exit(astk_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Jaap Aarts <jaap.aarts1@xxxxxxxxx>"); +MODULE_DESCRIPTION("Asetek gen6 driver"); -- 2.27.0
