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Merge 'new_tf_fan_control'

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This commit is contained in:
Christoffer Sandberg 2022-10-06 08:53:36 +02:00
parent 48666348c6 19642a2496
commit 617e38e5d9
4 changed files with 178 additions and 26 deletions
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174
src/tuxedo_io/tuxedo_io.c
View file

@ -32,7 +32,7 @@
MODULE_DESCRIPTION("Hardware interface for TUXEDO laptops");
MODULE_AUTHOR("TUXEDO Computers GmbH <tux@tuxedocomputers.com>");
MODULE_VERSION("0.2.4");
MODULE_VERSION("0.2.5");
MODULE_LICENSE("GPL");
MODULE_ALIAS_CLEVO_INTERFACES();
@ -156,6 +156,86 @@ static long clevo_ioctl_interface(struct file *file, unsigned int cmd, unsigned
return 0;
}
static int has_universal_ec_fan_control(void) {
int ret;
u8 data;
ret = uniwill_read_ec_ram(0x078e, &data);
if (ret < 0) {
return ret;
}
return (data >> 6) & 1;
}
static int set_full_fan_mode(bool enable) {
u8 mode_data;
uniwill_read_ec_ram(0x0751, &mode_data);
if (enable && !(mode_data & 0x40)) {
// If not "full fan mode" (i.e. 0x40 bit not set) switch to it (required for old fancontrol)
return uniwill_write_ec_ram(0x0751, mode_data | 0x40);
}
else if (mode_data & 0x40){
// If "full fan mode" (i.e. 0x40 bit set) turn it off (required for new fancontrol)
return uniwill_write_ec_ram(0x0751, mode_data & ~0x40);
}
return 0;
}
static bool fans_initialized = false;
static int uw_init_fan(void) {
int i;
u16 addr_use_custom_fan_table_0 = 0x07c5; // use different tables for both fans (0x0f00-0x0f2f and 0x0f30-0x0f5f respectivly)
u16 addr_use_custom_fan_table_1 = 0x07c6; // enable 0x0fxx fantables
u8 offset_use_custom_fan_table_0 = 7;
u8 offset_use_custom_fan_table_1 = 2;
u8 value_use_custom_fan_table_0;
u8 value_use_custom_fan_table_1;
u16 addr_cpu_custom_fan_table_end_temp = 0x0f00;
u16 addr_cpu_custom_fan_table_start_temp = 0x0f10;
u16 addr_cpu_custom_fan_table_fan_speed = 0x0f20;
u16 addr_gpu_custom_fan_table_end_temp = 0x0f30;
u16 addr_gpu_custom_fan_table_start_temp = 0x0f40;
u16 addr_gpu_custom_fan_table_fan_speed = 0x0f50;
if (!fans_initialized && (has_universal_ec_fan_control() == 1)) {
set_full_fan_mode(false);
uniwill_read_ec_ram(addr_use_custom_fan_table_0, &value_use_custom_fan_table_0);
if (!((value_use_custom_fan_table_0 >> offset_use_custom_fan_table_0) & 1)) {
uniwill_write_ec_ram_with_retry(addr_use_custom_fan_table_0, value_use_custom_fan_table_0 + (1 << offset_use_custom_fan_table_0), 3);
}
uniwill_write_ec_ram_with_retry(addr_cpu_custom_fan_table_end_temp, 0xff, 3);
uniwill_write_ec_ram_with_retry(addr_cpu_custom_fan_table_start_temp, 0x00, 3);
uniwill_write_ec_ram_with_retry(addr_cpu_custom_fan_table_fan_speed, 0x00, 3);
uniwill_write_ec_ram_with_retry(addr_gpu_custom_fan_table_end_temp, 0xff, 3);
uniwill_write_ec_ram_with_retry(addr_gpu_custom_fan_table_start_temp, 0x00, 3);
uniwill_write_ec_ram_with_retry(addr_gpu_custom_fan_table_fan_speed, 0x00, 3);
for (i = 0x1; i <= 0xf; ++i) {
uniwill_write_ec_ram_with_retry(addr_cpu_custom_fan_table_end_temp + i, 0xff, 3);
uniwill_write_ec_ram_with_retry(addr_cpu_custom_fan_table_start_temp + i, 0xff, 3);
uniwill_write_ec_ram_with_retry(addr_cpu_custom_fan_table_fan_speed + i, 0x00, 3);
uniwill_write_ec_ram_with_retry(addr_gpu_custom_fan_table_end_temp + i, 0xff, 3);
uniwill_write_ec_ram_with_retry(addr_gpu_custom_fan_table_start_temp + i, 0xff, 3);
uniwill_write_ec_ram_with_retry(addr_gpu_custom_fan_table_fan_speed + i, 0x00, 3);
}
uniwill_read_ec_ram(addr_use_custom_fan_table_1, &value_use_custom_fan_table_1);
if (!((value_use_custom_fan_table_1 >> offset_use_custom_fan_table_1) & 1)) {
uniwill_write_ec_ram_with_retry(addr_use_custom_fan_table_1, value_use_custom_fan_table_1 + (1 << offset_use_custom_fan_table_1), 3);
}
}
fans_initialized = true;
return 0;
}
static u32 uw_set_fan(u32 fan_index, u8 fan_speed)
{
u32 i;
@ -164,30 +244,47 @@ static u32 uw_set_fan(u32 fan_index, u8 fan_speed)
u16 addr_fan1 = 0x1809;
u16 addr_for_fan;
if (fan_index == 0)
addr_for_fan = addr_fan0;
else if (fan_index == 1)
addr_for_fan = addr_fan1;
else
return -EINVAL;
u16 addr_cpu_custom_fan_table_fan_speed = 0x0f20;
u16 addr_gpu_custom_fan_table_fan_speed = 0x0f50;
if (has_universal_ec_fan_control() == 1) {
uw_init_fan();
if (fan_index == 0)
addr_for_fan = addr_cpu_custom_fan_table_fan_speed;
else if (fan_index == 1)
addr_for_fan = addr_gpu_custom_fan_table_fan_speed;
else
return -EINVAL;
// Check current mode
uniwill_read_ec_ram(0x0751, &mode_data);
if (!(mode_data & 0x40)) {
// If not "full fan mode" (i.e. 0x40 bit set) switch to it (required for fancontrol)
uniwill_write_ec_ram(0x0751, mode_data | 0x40);
// Attempt to write both fans as quick as possible before complete ramp-up
pr_debug("prevent ramp-up start\n");
for (i = 0; i < 10; ++i) {
uniwill_write_ec_ram(addr_fan0, fan_speed & 0xff);
uniwill_write_ec_ram(addr_fan1, fan_speed & 0xff);
msleep(10);
}
pr_debug("prevent ramp-up done\n");
} else {
// Otherwise just set the chosen fan
uniwill_write_ec_ram(addr_for_fan, fan_speed & 0xff);
}
else { // old workaround using full fan mode
if (fan_index == 0)
addr_for_fan = addr_fan0;
else if (fan_index == 1)
addr_for_fan = addr_fan1;
else
return -EINVAL;
// Check current mode
uniwill_read_ec_ram(0x0751, &mode_data);
if (!(mode_data & 0x40)) {
// If not "full fan mode" (i.e. 0x40 bit set) switch to it (required for fancontrol)
set_full_fan_mode(true);
// Attempt to write both fans as quick as possible before complete ramp-up
pr_debug("prevent ramp-up start\n");
for (i = 0; i < 10; ++i) {
uniwill_write_ec_ram(addr_fan0, fan_speed & 0xff);
uniwill_write_ec_ram(addr_fan1, fan_speed & 0xff);
msleep(10);
}
pr_debug("prevent ramp-up done\n");
} else {
// Otherwise just set the chosen fan
uniwill_write_ec_ram(addr_for_fan, fan_speed & 0xff);
}
}
return 0;
}
@ -195,10 +292,15 @@ static u32 uw_set_fan(u32 fan_index, u8 fan_speed)
static u32 uw_set_fan_auto(void)
{
u8 mode_data;
// Get current mode
uniwill_read_ec_ram(0x0751, &mode_data);
// Switch off "full fan mode" (i.e. unset 0x40 bit)
uniwill_write_ec_ram(0x0751, mode_data & 0xbf);
if (has_universal_ec_fan_control() == 1) {
}
else {
// Get current mode
uniwill_read_ec_ram(0x0751, &mode_data);
// Switch off "full fan mode" (i.e. unset 0x40 bit)
uniwill_write_ec_ram(0x0751, mode_data & 0xbf);
}
return 0;
}
@ -261,6 +363,26 @@ 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_FANS_OFF_AVAILABLE:
result = has_universal_ec_fan_control();
if (result == 1) {
result = 0;
}
else if (result == 0) {
result = 1;
}
copy_result = copy_to_user((void *) arg, &result, sizeof(result));
break;
case R_UW_FANS_MIN_SPEED:
result = has_universal_ec_fan_control();
if (result == 1) {
result = 20;
}
else if (result == 0) {
result = 0;
}
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));

2
src/tuxedo_io/tuxedo_io_ioctl.h
View file

@ -79,6 +79,8 @@
#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_FANS_OFF_AVAILABLE _IOR(MAGIC_READ_UW, 0x16, int32_t*)
#define R_UW_FANS_MIN_SPEED _IOR(MAGIC_READ_UW, 0x17, int32_t*)
// Write
#define W_UW_FANSPEED _IOW(MAGIC_WRITE_UW, 0x10, int32_t*)

2
src/uniwill_interfaces.h
View file

@ -37,6 +37,7 @@
typedef u32 (uniwill_read_ec_ram_t)(u16, u8*);
typedef u32 (uniwill_write_ec_ram_t)(u16, u8);
typedef u32 (uniwill_write_ec_ram_with_retry_t)(u16, u8, int);
typedef void (uniwill_event_callb_t)(u32);
struct uniwill_interface_t {
@ -50,6 +51,7 @@ u32 uniwill_add_interface(struct uniwill_interface_t *new_interface);
u32 uniwill_remove_interface(struct uniwill_interface_t *interface);
uniwill_read_ec_ram_t uniwill_read_ec_ram;
uniwill_write_ec_ram_t uniwill_write_ec_ram;
uniwill_write_ec_ram_with_retry_t uniwill_write_ec_ram_with_retry;
u32 uniwill_get_active_interface_id(char **id_str);
union uw_ec_read_return {

26
src/uniwill_keyboard.h
View file

@ -124,6 +124,32 @@ u32 uniwill_write_ec_ram(u16 address, u8 data)
}
EXPORT_SYMBOL(uniwill_write_ec_ram);
u32 uniwill_write_ec_ram_with_retry(u16 address, u8 data, int retries)
{
u32 status;
int i;
u8 control_data;
for (i = 0; i < retries; ++i) {
status = uniwill_write_ec_ram(address, data);
if (status != 0) {
msleep(50);
continue;
}
else {
status = uniwill_read_ec_ram(address, &control_data);
if (status != 0 || data != control_data) {
msleep(50);
continue;
}
break;
}
}
return status;
}
EXPORT_SYMBOL(uniwill_write_ec_ram_with_retry);
static DEFINE_MUTEX(uniwill_interface_modification_lock);
u32 uniwill_add_interface(struct uniwill_interface_t *interface)