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Add uw TDP ioctl interface

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This commit is contained in:
Christoffer Sandberg 2021-09-24 23:32:25 +02:00
parent cc4c1445b9
commit dd5e48fb09
2 changed files with 87 additions and 0 deletions
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79
src/tuxedo_io/tuxedo_io.c
View file

@ -26,6 +26,8 @@
#include <linux/cdev.h>
#include <linux/uaccess.h>
#include <linux/delay.h>
#include <linux/version.h>
#include <linux/dmi.h>
#include "../clevo_interfaces.h"
#include "../uniwill_interfaces.h"
#include "tuxedo_io_ioctl.h"
@ -50,8 +52,21 @@ static u32 clevo_identify(void)
return clevo_get_active_interface_id(NULL) == 0 ? 1 : 0;
}
static bool uniwill_tdp_config_two;
static bool uniwill_tdp_config_three;
static u32 uniwill_identify(void)
{
// Device check for two configurable TDPs
uniwill_tdp_config_two = false
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 18, 0)
|| dmi_match(DMI_PRODUCT_SKU, "0001")
#endif
;
// Device check for three configurable TDPs
uniwill_tdp_config_three = false;
return uniwill_get_active_interface_id(NULL) == 0 ? 1 : 0;
}
@ -203,6 +218,45 @@ static u32 uw_set_fan_auto(void)
return 0;
}
static int uw_get_tdp(u8 tdp_index)
{
u8 tdp_data;
u16 tdp_base_addr = 0x0783;
u16 tdp_current_addr = tdp_base_addr + tdp_index;
bool has_current_setting = false;
if (tdp_index < 2 && uniwill_tdp_config_two)
has_current_setting = true;
else if (tdp_index < 3 && uniwill_tdp_config_three)
has_current_setting = true;
if (!has_current_setting)
return -1;
uniwill_read_ec_ram(tdp_current_addr, &tdp_data);
return tdp_data;
}
static int uw_set_tdp(u8 tdp_index, u8 tdp_data)
{
u16 tdp_base_addr = 0x0783;
u16 tdp_current_addr = tdp_base_addr + tdp_index;
bool has_current_setting = false;
if (tdp_index < 2 && uniwill_tdp_config_two)
has_current_setting = true;
else if (tdp_index < 3 && uniwill_tdp_config_three)
has_current_setting = true;
if (!has_current_setting)
return -1;
uniwill_write_ec_ram(tdp_current_addr, tdp_data);
return 0;
}
static long uniwill_ioctl_interface(struct file *file, unsigned int cmd, unsigned long arg)
{
u32 result = 0;
@ -261,6 +315,19 @@ static long uniwill_ioctl_interface(struct file *file, unsigned int cmd, unsigne
result = byte_data;
copy_result = copy_to_user((void *) arg, &result, sizeof(result));
break;
case R_UW_TDP0:
result = uw_get_tdp(0);
copy_result = copy_to_user((void *) arg, &result, sizeof(result));
break;
case R_UW_TDP1:
result = uw_get_tdp(1);
copy_result = copy_to_user((void *) arg, &result, sizeof(result));
break;
case R_UW_TDP2:
result = uw_get_tdp(2);
copy_result = copy_to_user((void *) arg, &result, sizeof(result));
break;
#ifdef DEBUG
case R_TF_BC:
copy_result = copy_from_user(&uw_arg, (void *) arg, sizeof(uw_arg));
@ -304,6 +371,18 @@ static long uniwill_ioctl_interface(struct file *file, unsigned int cmd, unsigne
case W_UW_FANAUTO:
uw_set_fan_auto();
break;
case W_UW_TDP0:
copy_result = copy_from_user(&argument, (int32_t *) arg, sizeof(argument));
uw_set_tdp(0, argument);
break;
case W_UW_TDP1:
copy_result = copy_from_user(&argument, (int32_t *) arg, sizeof(argument));
uw_set_tdp(1, argument);
break;
case W_UW_TDP2:
copy_result = copy_from_user(&argument, (int32_t *) arg, sizeof(argument));
uw_set_tdp(2, argument);
break;
#ifdef DEBUG
case W_TF_BC:
reg_write_return.dword = 0;

8
src/tuxedo_io/tuxedo_io_ioctl.h
View file

@ -80,6 +80,10 @@
#define R_UW_MODE _IOR(MAGIC_READ_UW, 0x14, int32_t*)
#define R_UW_MODE_ENABLE _IOR(MAGIC_READ_UW, 0x15, int32_t*)
#define R_UW_TDP0 _IOR(MAGIC_READ_UW, 0x16, int32_t*)
#define R_UW_TDP1 _IOR(MAGIC_READ_UW, 0x17, int32_t*)
#define R_UW_TDP2 _IOR(MAGIC_READ_UW, 0x18, int32_t*)
// Write
#define W_UW_FANSPEED _IOW(MAGIC_WRITE_UW, 0x10, int32_t*)
#define W_UW_FANSPEED2 _IOW(MAGIC_WRITE_UW, 0x11, int32_t*)
@ -87,4 +91,8 @@
#define W_UW_MODE_ENABLE _IOW(MAGIC_WRITE_UW, 0x13, int32_t*)
#define W_UW_FANAUTO _IO(MAGIC_WRITE_UW, 0x14) // undo all previous calls of W_UW_FANSPEED and W_UW_FANSPEED2
#define W_UW_TDP0 _IOW(MAGIC_WRITE_UW, 0x15, int32_t*)
#define W_UW_TDP1 _IOW(MAGIC_WRITE_UW, 0x16, int32_t*)
#define W_UW_TDP2 _IOW(MAGIC_WRITE_UW, 0x17, int32_t*)
#endif