@@ -4,7 +4,7 @@
* Copyright (c) Jaap Aarts 2020
*
* Protocol reverse engineered by audiohacked
- * https://github.com/audiohacked/OpenCorsairLink
+ * https://github.com/audiohacked/OpendriverLink
*/
/*
@@ -45,6 +45,315 @@ struct driver {
struct kref kref;
};
+struct curve_point {
+ uint8_t temp;
+ uint8_t pwm;
+};
+
+struct fan_hwmon_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;
+ int fan_1_index;
+};
+
+struct curve_point default_curve[] = {
+ {
+ .temp = 0x10,
+ .pwm = 0x19,
+ },
+ {
+ .temp = 0x14,
+ .pwm = 0x19,
+ },
+ {
+ .temp = 0x20,
+ .pwm = 0x27,
+ },
+ {
+ .temp = 0x28,
+ .pwm = 0x32,
+ },
+ {
+ .temp = 0x32,
+ .pwm = 0x4b,
+ },
+ {
+ .temp = 0x37,
+ .pwm = 0x5a,
+ },
+ {
+ .temp = 0x3c,
+ .pwm = 0x64,
+ },
+
+};
+
+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) == 0;
+}
+
+int set_fan_target_rpm(struct driver *cdev, struct fan_hwmon_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) ||
+ recv_buf[3] != fan_data->fan_channel)
+ printk(KERN_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 fan_hwmon_data *fan_data, long *val)
+{
+ *val = fan_data->fan_target;
+}
+int get_fan_current_rpm(struct driver *cdev, struct fan_hwmon_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)
+ printk(KERN_INFO "[*] Failled retreiving 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;
+}
+
+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;
+ 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 fan_hwmon_data *fan_data;
+ int retval = 0;
+
+ switch (type) {
+ case hwmon_fan:;
+ switch (attr) {
+ case hwmon_fan_target:
+ 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 = set_fan_target_rpm(cdev, fan_data, val);
+ if (retval)
+ goto cleanup;
+
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ 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 fan_hwmon_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;
+
+ break;
+ case hwmon_fan_target:
+ fan_data = data->channel_data[channel];
+
+ get_fan_target_rpm(fan_data, val);
+ break;
+ case hwmon_fan_min:
+ *val = 200;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+
+cleanup:
+ up(&cdev->limit_sem);
+cleanup_interface:
+ usb_autopm_put_interface(cdev->interface);
+exit:
+ return retval;
+}
+static const struct hwmon_channel_info *dual_fan[] = {
+ HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT | HWMON_F_TARGET,
+ HWMON_F_INPUT | HWMON_F_TARGET),
+ NULL
+};
+
+static const struct hwmon_ops asetek_6_ops = {
+ .is_visible = is_visible_func,
+ .read = read_func,
+ .write = write_func,
+};
+
+static const struct hwmon_chip_info lm75_chip_info = {
+ .ops = &asetek_6_ops,
+ .info = dual_fan,
+};
+
+void hwmon_init(struct driver *dev)
+{
+ struct device *hwmon_dev;
+ 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);
+ struct fan_hwmon_data *fan1 = devm_kzalloc(
+ &dev->udev->dev, sizeof(struct fan_hwmon_data), GFP_KERNEL);
+ struct fan_hwmon_data *fan2 = devm_kzalloc(
+ &dev->udev->dev, sizeof(struct fan_hwmon_data), GFP_KERNEL);
+ data->channel_count = 2; //amount of fans
+ data->channel_data =
+ devm_kzalloc(&dev->udev->dev,
+ sizeof(char *) * data->channel_count, GFP_KERNEL);
+
+ hwmon_info->ops = &asetek_6_ops;
+ hwmon_info->info = dual_fan;
+
+ fan1->fan_channel = 0;
+ fan1->mode = 2;
+ fan2->fan_channel = 1;
+ fan2->mode = 2;
+
+ data->fan_1_index = 0;
+ data->dev = dev;
+ data->channel_data[0] = fan1;
+ data->channel_data[1] = fan2;
+
+ hwmon_dev = devm_hwmon_device_register_with_info(
+ &dev->udev->dev, "driver_fan", data, hwmon_info, NULL);
+ printk(KERN_INFO "[*] Setup hwmon\n");
+}
+
+void hwmon_deinit(struct driver *dev)
+{
+ hwmon_device_unregister(&dev->udev->dev);
+ printk(KERN_INFO "[*] HWMON DISCONNECT\n");
+}
/* devices that work with this driver */
static const struct usb_device_id astk_table[] = {
{ USB_DEVICE(0x1b1c, 0x0c15) },
@@ -121,7 +430,7 @@ static int astk_probe(struct usb_interface *interface,
dev->bulk_out_buffer = kmalloc(dev->bulk_out_size, GFP_KERNEL);
dev->bulk_out_endpointAddr = bulk_out->bEndpointAddress;
- //hwmon_init(dev);
+ hwmon_init(dev);
retval = init_device(dev->udev);
if (retval) {
dev_err(&interface->dev, "Failled initialising this device.\n");
@@ -139,7 +448,7 @@ static int astk_probe(struct usb_interface *interface,
static void astk_disconnect(struct usb_interface *interface)
{
struct driver *dev = usb_get_intfdata(interface);
- //hwmon_deinit(dev);
+ hwmon_deinit(dev);
usb_set_intfdata(interface, NULL);
kref_put(&dev->kref, astk_delete);
deinit_device(dev->udev);
Signed-off-by: Jaap Aarts <jaap.aarts1@example.com> --- drivers/hwmon/asetek_gen6.c | 315 +++++++++++++++++++++++++++++++++++- 1 file changed, 312 insertions(+), 3 deletions(-)