diff options
Diffstat (limited to 'drivers/platform/x86/hp-wmi.c')
-rw-r--r-- | drivers/platform/x86/hp-wmi.c | 230 |
1 files changed, 164 insertions, 66 deletions
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c index 48a46466f086..0e9a25b56e0e 100644 --- a/drivers/platform/x86/hp-wmi.c +++ b/drivers/platform/x86/hp-wmi.c @@ -35,10 +35,6 @@ MODULE_LICENSE("GPL"); MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C"); MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4"); -static int enable_tablet_mode_sw = -1; -module_param(enable_tablet_mode_sw, int, 0444); -MODULE_PARM_DESC(enable_tablet_mode_sw, "Enable SW_TABLET_MODE reporting (-1=auto, 0=no, 1=yes)"); - #define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C" #define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4" #define HP_OMEN_EC_THERMAL_PROFILE_OFFSET 0x95 @@ -61,6 +57,14 @@ static const char * const omen_thermal_profile_boards[] = { "8917", "8918", "8949", "894A", "89EB" }; +/* DMI Board names of Omen laptops that are specifically set to be thermal + * profile version 0 by the Omen Command Center app, regardless of what + * the get system design information WMI call returns + */ +static const char *const omen_thermal_profile_force_v0_boards[] = { + "8607", "8746", "8747", "8749", "874A", "8748" +}; + enum hp_wmi_radio { HPWMI_WIFI = 0x0, HPWMI_BLUETOOTH = 0x1, @@ -86,12 +90,17 @@ enum hp_wmi_event_ids { HPWMI_BATTERY_CHARGE_PERIOD = 0x10, }; +/* + * struct bios_args buffer is dynamically allocated. New WMI command types + * were introduced that exceeds 128-byte data size. Changes to handle + * the data size allocation scheme were kept in hp_wmi_perform_qurey function. + */ struct bios_args { u32 signature; u32 command; u32 commandtype; u32 datasize; - u8 data[128]; + u8 data[]; }; enum hp_wmi_commandtype { @@ -107,6 +116,7 @@ enum hp_wmi_commandtype { HPWMI_FEATURE2_QUERY = 0x0d, HPWMI_WIRELESS2_QUERY = 0x1b, HPWMI_POSTCODEERROR_QUERY = 0x2a, + HPWMI_SYSTEM_DEVICE_MODE = 0x40, HPWMI_THERMAL_PROFILE_QUERY = 0x4c, }; @@ -115,6 +125,7 @@ enum hp_wmi_gm_commandtype { HPWMI_SET_PERFORMANCE_MODE = 0x1A, HPWMI_FAN_SPEED_MAX_GET_QUERY = 0x26, HPWMI_FAN_SPEED_MAX_SET_QUERY = 0x27, + HPWMI_GET_SYSTEM_DESIGN_DATA = 0x28, }; enum hp_wmi_command { @@ -149,10 +160,16 @@ enum hp_wireless2_bits { HPWMI_POWER_FW_OR_HW = HPWMI_POWER_BIOS | HPWMI_POWER_HARD, }; -enum hp_thermal_profile_omen { - HP_OMEN_THERMAL_PROFILE_DEFAULT = 0x00, - HP_OMEN_THERMAL_PROFILE_PERFORMANCE = 0x01, - HP_OMEN_THERMAL_PROFILE_COOL = 0x02, +enum hp_thermal_profile_omen_v0 { + HP_OMEN_V0_THERMAL_PROFILE_DEFAULT = 0x00, + HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE = 0x01, + HP_OMEN_V0_THERMAL_PROFILE_COOL = 0x02, +}; + +enum hp_thermal_profile_omen_v1 { + HP_OMEN_V1_THERMAL_PROFILE_DEFAULT = 0x30, + HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE = 0x31, + HP_OMEN_V1_THERMAL_PROFILE_COOL = 0x50, }; enum hp_thermal_profile { @@ -217,6 +234,19 @@ struct rfkill2_device { static int rfkill2_count; static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES]; +/* + * Chassis Types values were obtained from SMBIOS reference + * specification version 3.00. A complete list of system enclosures + * and chassis types is available on Table 17. + */ +static const char * const tablet_chassis_types[] = { + "30", /* Tablet*/ + "31", /* Convertible */ + "32" /* Detachable */ +}; + +#define DEVICE_MODE_TABLET 0x06 + /* map output size to the corresponding WMI method id */ static inline int encode_outsize_for_pvsz(int outsize) { @@ -256,37 +286,43 @@ static inline int encode_outsize_for_pvsz(int outsize) static int hp_wmi_perform_query(int query, enum hp_wmi_command command, void *buffer, int insize, int outsize) { - int mid; + struct acpi_buffer input, output = { ACPI_ALLOCATE_BUFFER, NULL }; struct bios_return *bios_return; - int actual_outsize; - union acpi_object *obj; - struct bios_args args = { - .signature = 0x55434553, - .command = command, - .commandtype = query, - .datasize = insize, - .data = { 0 }, - }; - struct acpi_buffer input = { sizeof(struct bios_args), &args }; - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; - int ret = 0; + union acpi_object *obj = NULL; + struct bios_args *args = NULL; + int mid, actual_outsize, ret; + size_t bios_args_size; mid = encode_outsize_for_pvsz(outsize); if (WARN_ON(mid < 0)) return mid; - if (WARN_ON(insize > sizeof(args.data))) - return -EINVAL; - memcpy(&args.data[0], buffer, insize); + bios_args_size = struct_size(args, data, insize); + args = kmalloc(bios_args_size, GFP_KERNEL); + if (!args) + return -ENOMEM; - wmi_evaluate_method(HPWMI_BIOS_GUID, 0, mid, &input, &output); + input.length = bios_args_size; + input.pointer = args; - obj = output.pointer; + args->signature = 0x55434553; + args->command = command; + args->commandtype = query; + args->datasize = insize; + memcpy(args->data, buffer, flex_array_size(args, data, insize)); - if (!obj) - return -EINVAL; + ret = wmi_evaluate_method(HPWMI_BIOS_GUID, 0, mid, &input, &output); + if (ret) + goto out_free; + + obj = output.pointer; + if (!obj) { + ret = -EINVAL; + goto out_free; + } if (obj->type != ACPI_TYPE_BUFFER) { + pr_warn("query 0x%x returned an invalid object 0x%x\n", query, ret); ret = -EINVAL; goto out_free; } @@ -311,6 +347,7 @@ static int hp_wmi_perform_query(int query, enum hp_wmi_command command, out_free: kfree(obj); + kfree(args); return ret; } @@ -320,7 +357,7 @@ static int hp_wmi_get_fan_speed(int fan) char fan_data[4] = { fan, 0, 0, 0 }; int ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_GET_QUERY, HPWMI_GM, - &fan_data, sizeof(fan_data), + &fan_data, sizeof(char), sizeof(fan_data)); if (ret != 0) @@ -337,7 +374,7 @@ static int hp_wmi_read_int(int query) int val = 0, ret; ret = hp_wmi_perform_query(query, HPWMI_READ, &val, - sizeof(val), sizeof(val)); + 0, sizeof(val)); if (ret) return ret < 0 ? ret : -EINVAL; @@ -345,14 +382,39 @@ static int hp_wmi_read_int(int query) return val; } -static int hp_wmi_hw_state(int mask) +static int hp_wmi_get_dock_state(void) { int state = hp_wmi_read_int(HPWMI_HARDWARE_QUERY); if (state < 0) return state; - return !!(state & mask); + return !!(state & HPWMI_DOCK_MASK); +} + +static int hp_wmi_get_tablet_mode(void) +{ + char system_device_mode[4] = { 0 }; + const char *chassis_type; + bool tablet_found; + int ret; + + chassis_type = dmi_get_system_info(DMI_CHASSIS_TYPE); + if (!chassis_type) + return -ENODEV; + + tablet_found = match_string(tablet_chassis_types, + ARRAY_SIZE(tablet_chassis_types), + chassis_type) >= 0; + if (!tablet_found) + return -ENODEV; + + ret = hp_wmi_perform_query(HPWMI_SYSTEM_DEVICE_MODE, HPWMI_READ, + system_device_mode, 0, sizeof(system_device_mode)); + if (ret < 0) + return ret; + + return system_device_mode[0] == DEVICE_MODE_TABLET; } static int omen_thermal_profile_set(int mode) @@ -360,11 +422,8 @@ static int omen_thermal_profile_set(int mode) char buffer[2] = {0, mode}; int ret; - if (mode < 0 || mode > 2) - return -EINVAL; - ret = hp_wmi_perform_query(HPWMI_SET_PERFORMANCE_MODE, HPWMI_GM, - &buffer, sizeof(buffer), sizeof(buffer)); + &buffer, sizeof(buffer), 0); if (ret) return ret < 0 ? ret : -EINVAL; @@ -384,6 +443,30 @@ static bool is_omen_thermal_profile(void) board_name) >= 0; } +static int omen_get_thermal_policy_version(void) +{ + unsigned char buffer[8] = { 0 }; + int ret; + + const char *board_name = dmi_get_system_info(DMI_BOARD_NAME); + + if (board_name) { + int matches = match_string(omen_thermal_profile_force_v0_boards, + ARRAY_SIZE(omen_thermal_profile_force_v0_boards), + board_name); + if (matches >= 0) + return 0; + } + + ret = hp_wmi_perform_query(HPWMI_GET_SYSTEM_DESIGN_DATA, HPWMI_GM, + &buffer, sizeof(buffer), sizeof(buffer)); + + if (ret) + return ret < 0 ? ret : -EINVAL; + + return buffer[3]; +} + static int omen_thermal_profile_get(void) { u8 data; @@ -401,7 +484,7 @@ static int hp_wmi_fan_speed_max_set(int enabled) int ret; ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_SET_QUERY, HPWMI_GM, - &enabled, sizeof(enabled), sizeof(enabled)); + &enabled, sizeof(enabled), 0); if (ret) return ret < 0 ? ret : -EINVAL; @@ -414,7 +497,7 @@ static int hp_wmi_fan_speed_max_get(void) int val = 0, ret; ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_GET_QUERY, HPWMI_GM, - &val, sizeof(val), sizeof(val)); + &val, 0, sizeof(val)); if (ret) return ret < 0 ? ret : -EINVAL; @@ -426,7 +509,7 @@ static int __init hp_wmi_bios_2008_later(void) { int state = 0; int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, HPWMI_READ, &state, - sizeof(state), sizeof(state)); + 0, sizeof(state)); if (!ret) return 1; @@ -437,7 +520,7 @@ static int __init hp_wmi_bios_2009_later(void) { u8 state[128]; int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, HPWMI_READ, &state, - sizeof(state), sizeof(state)); + 0, sizeof(state)); if (!ret) return 1; @@ -515,7 +598,7 @@ static int hp_wmi_rfkill2_refresh(void) int err, i; err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state, - sizeof(state), sizeof(state)); + 0, sizeof(state)); if (err) return err; @@ -568,7 +651,7 @@ static ssize_t als_show(struct device *dev, struct device_attribute *attr, static ssize_t dock_show(struct device *dev, struct device_attribute *attr, char *buf) { - int value = hp_wmi_hw_state(HPWMI_DOCK_MASK); + int value = hp_wmi_get_dock_state(); if (value < 0) return value; return sprintf(buf, "%d\n", value); @@ -577,7 +660,7 @@ static ssize_t dock_show(struct device *dev, struct device_attribute *attr, static ssize_t tablet_show(struct device *dev, struct device_attribute *attr, char *buf) { - int value = hp_wmi_hw_state(HPWMI_TABLET_MASK); + int value = hp_wmi_get_tablet_mode(); if (value < 0) return value; return sprintf(buf, "%d\n", value); @@ -604,7 +687,7 @@ static ssize_t als_store(struct device *dev, struct device_attribute *attr, return ret; ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, HPWMI_WRITE, &tmp, - sizeof(tmp), sizeof(tmp)); + sizeof(tmp), 0); if (ret) return ret < 0 ? ret : -EINVAL; @@ -625,9 +708,9 @@ static ssize_t postcode_store(struct device *dev, struct device_attribute *attr, if (clear == false) return -EINVAL; - /* Clear the POST error code. It is kept until until cleared. */ + /* Clear the POST error code. It is kept until cleared. */ ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, HPWMI_WRITE, &tmp, - sizeof(tmp), sizeof(tmp)); + sizeof(tmp), 0); if (ret) return ret < 0 ? ret : -EINVAL; @@ -699,10 +782,10 @@ static void hp_wmi_notify(u32 value, void *context) case HPWMI_DOCK_EVENT: if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit)) input_report_switch(hp_wmi_input_dev, SW_DOCK, - hp_wmi_hw_state(HPWMI_DOCK_MASK)); + hp_wmi_get_dock_state()); if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit)) input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, - hp_wmi_hw_state(HPWMI_TABLET_MASK)); + hp_wmi_get_tablet_mode()); input_sync(hp_wmi_input_dev); break; case HPWMI_PARK_HDD: @@ -780,19 +863,17 @@ static int __init hp_wmi_input_setup(void) __set_bit(EV_SW, hp_wmi_input_dev->evbit); /* Dock */ - val = hp_wmi_hw_state(HPWMI_DOCK_MASK); + val = hp_wmi_get_dock_state(); if (!(val < 0)) { __set_bit(SW_DOCK, hp_wmi_input_dev->swbit); input_report_switch(hp_wmi_input_dev, SW_DOCK, val); } /* Tablet mode */ - if (enable_tablet_mode_sw > 0) { - val = hp_wmi_hw_state(HPWMI_TABLET_MASK); - if (val >= 0) { - __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit); - input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val); - } + val = hp_wmi_get_tablet_mode(); + if (!(val < 0)) { + __set_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit); + input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, val); } err = sparse_keymap_setup(hp_wmi_input_dev, hp_wmi_keymap, NULL); @@ -919,7 +1000,7 @@ static int __init hp_wmi_rfkill2_setup(struct platform_device *device) int err, i; err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state, - sizeof(state), sizeof(state)); + 0, sizeof(state)); if (err) return err < 0 ? err : -EINVAL; @@ -1008,13 +1089,16 @@ static int platform_profile_omen_get(struct platform_profile_handler *pprof, return tp; switch (tp) { - case HP_OMEN_THERMAL_PROFILE_PERFORMANCE: + case HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE: + case HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE: *profile = PLATFORM_PROFILE_PERFORMANCE; break; - case HP_OMEN_THERMAL_PROFILE_DEFAULT: + case HP_OMEN_V0_THERMAL_PROFILE_DEFAULT: + case HP_OMEN_V1_THERMAL_PROFILE_DEFAULT: *profile = PLATFORM_PROFILE_BALANCED; break; - case HP_OMEN_THERMAL_PROFILE_COOL: + case HP_OMEN_V0_THERMAL_PROFILE_COOL: + case HP_OMEN_V1_THERMAL_PROFILE_COOL: *profile = PLATFORM_PROFILE_COOL; break; default: @@ -1027,17 +1111,31 @@ static int platform_profile_omen_get(struct platform_profile_handler *pprof, static int platform_profile_omen_set(struct platform_profile_handler *pprof, enum platform_profile_option profile) { - int err, tp; + int err, tp, tp_version; + + tp_version = omen_get_thermal_policy_version(); + + if (tp_version < 0 || tp_version > 1) + return -EOPNOTSUPP; switch (profile) { case PLATFORM_PROFILE_PERFORMANCE: - tp = HP_OMEN_THERMAL_PROFILE_PERFORMANCE; + if (tp_version == 0) + tp = HP_OMEN_V0_THERMAL_PROFILE_PERFORMANCE; + else + tp = HP_OMEN_V1_THERMAL_PROFILE_PERFORMANCE; break; case PLATFORM_PROFILE_BALANCED: - tp = HP_OMEN_THERMAL_PROFILE_DEFAULT; + if (tp_version == 0) + tp = HP_OMEN_V0_THERMAL_PROFILE_DEFAULT; + else + tp = HP_OMEN_V1_THERMAL_PROFILE_DEFAULT; break; case PLATFORM_PROFILE_COOL: - tp = HP_OMEN_THERMAL_PROFILE_COOL; + if (tp_version == 0) + tp = HP_OMEN_V0_THERMAL_PROFILE_COOL; + else + tp = HP_OMEN_V1_THERMAL_PROFILE_COOL; break; default: return -EOPNOTSUPP; @@ -1227,10 +1325,10 @@ static int hp_wmi_resume_handler(struct device *device) if (hp_wmi_input_dev) { if (test_bit(SW_DOCK, hp_wmi_input_dev->swbit)) input_report_switch(hp_wmi_input_dev, SW_DOCK, - hp_wmi_hw_state(HPWMI_DOCK_MASK)); + hp_wmi_get_dock_state()); if (test_bit(SW_TABLET_MODE, hp_wmi_input_dev->swbit)) input_report_switch(hp_wmi_input_dev, SW_TABLET_MODE, - hp_wmi_hw_state(HPWMI_TABLET_MASK)); + hp_wmi_get_tablet_mode()); input_sync(hp_wmi_input_dev); } |