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https://github.com/torvalds/linux.git
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platform/x86: hp-wmi: Standardize enum usage for constants
Use enums consistently throughout the hp-wmi driver for groups of related constants. Use hex and align the assignment within groups. Move the *QUERY constants into an enum, create a new enum defining the READ, WRITE, and ODM constants and use them instead of 0 and 1 at the call sites. Set the command directly instead of using the ternary operator since both 1 and 3 as previously documented would result in the command being set to 0x2. Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org> Tested-by: Carlo Caione <carlo@endlessm.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
This commit is contained in:
Darren Hart (VMware)
parent
3bf9310a57
commit
d8193cff33
1 changed files with 74 additions and 58 deletions
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@ -48,41 +48,29 @@ MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
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#define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
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#define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4"
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#define HPWMI_DISPLAY_QUERY 0x1
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#define HPWMI_HDDTEMP_QUERY 0x2
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#define HPWMI_ALS_QUERY 0x3
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#define HPWMI_HARDWARE_QUERY 0x4
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#define HPWMI_WIRELESS_QUERY 0x5
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#define HPWMI_BIOS_QUERY 0x9
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#define HPWMI_FEATURE_QUERY 0xb
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#define HPWMI_HOTKEY_QUERY 0xc
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#define HPWMI_FEATURE2_QUERY 0xd
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#define HPWMI_WIRELESS2_QUERY 0x1b
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#define HPWMI_POSTCODEERROR_QUERY 0x2a
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enum hp_wmi_radio {
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HPWMI_WIFI = 0,
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HPWMI_BLUETOOTH = 1,
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HPWMI_WWAN = 2,
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HPWMI_GPS = 3,
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HPWMI_WIFI = 0x0,
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HPWMI_BLUETOOTH = 0x1,
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HPWMI_WWAN = 0x2,
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HPWMI_GPS = 0x3,
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};
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enum hp_wmi_event_ids {
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HPWMI_DOCK_EVENT = 1,
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HPWMI_PARK_HDD = 2,
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HPWMI_SMART_ADAPTER = 3,
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HPWMI_BEZEL_BUTTON = 4,
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HPWMI_WIRELESS = 5,
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HPWMI_CPU_BATTERY_THROTTLE = 6,
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HPWMI_LOCK_SWITCH = 7,
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HPWMI_LID_SWITCH = 8,
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HPWMI_SCREEN_ROTATION = 9,
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HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A,
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HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B,
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HPWMI_PROXIMITY_SENSOR = 0x0C,
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HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D,
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HPWMI_PEAKSHIFT_PERIOD = 0x0F,
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HPWMI_BATTERY_CHARGE_PERIOD = 0x10,
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HPWMI_DOCK_EVENT = 0x01,
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HPWMI_PARK_HDD = 0x02,
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HPWMI_SMART_ADAPTER = 0x03,
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HPWMI_BEZEL_BUTTON = 0x04,
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HPWMI_WIRELESS = 0x05,
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HPWMI_CPU_BATTERY_THROTTLE = 0x06,
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HPWMI_LOCK_SWITCH = 0x07,
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HPWMI_LID_SWITCH = 0x08,
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HPWMI_SCREEN_ROTATION = 0x09,
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HPWMI_COOLSENSE_SYSTEM_MOBILE = 0x0A,
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HPWMI_COOLSENSE_SYSTEM_HOT = 0x0B,
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HPWMI_PROXIMITY_SENSOR = 0x0C,
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HPWMI_BACKLIT_KB_BRIGHTNESS = 0x0D,
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HPWMI_PEAKSHIFT_PERIOD = 0x0F,
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HPWMI_BATTERY_CHARGE_PERIOD = 0x10,
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};
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struct bios_args {
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@ -93,6 +81,34 @@ struct bios_args {
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u32 data;
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};
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enum hp_wmi_commandtype {
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HPWMI_DISPLAY_QUERY = 0x01,
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HPWMI_HDDTEMP_QUERY = 0x02,
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HPWMI_ALS_QUERY = 0x03,
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HPWMI_HARDWARE_QUERY = 0x04,
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HPWMI_WIRELESS_QUERY = 0x05,
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HPWMI_BATTERY_QUERY = 0x07,
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HPWMI_BIOS_QUERY = 0x09,
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HPWMI_FEATURE_QUERY = 0x0b,
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HPWMI_HOTKEY_QUERY = 0x0c,
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HPWMI_FEATURE2_QUERY = 0x0d,
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HPWMI_WIRELESS2_QUERY = 0x1b,
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HPWMI_POSTCODEERROR_QUERY = 0x2a,
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};
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enum hp_wmi_command {
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HPWMI_READ = 0x01,
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HPWMI_WRITE = 0x02,
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HPWMI_ODM = 0x03,
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};
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#define BIOS_ARGS_INIT(write, ctype, size) \
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(struct bios_args) { .signature = 0x55434553, \
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.command = (write) ? 0x2 : 0x1, \
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.commandtype = (ctype), \
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.datasize = (size), \
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.data = 0 }
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struct bios_return {
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u32 sigpass;
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u32 return_code;
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@ -170,8 +186,8 @@ static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES];
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/*
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* hp_wmi_perform_query
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*
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* query: The commandtype -> What should be queried
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* write: The command -> 0 read, 1 write, 3 ODM specific
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* query: The commandtype (enum hp_wmi_commandtype)
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* write: The command (enum hp_wmi_command)
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* buffer: Buffer used as input and/or output
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* insize: Size of input buffer
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* outsize: Size of output buffer
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@ -182,20 +198,20 @@ static struct rfkill2_device rfkill2[HPWMI_MAX_RFKILL2_DEVICES];
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* -EINVAL if the output buffer size exceeds buffersize
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*
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* Note: The buffersize must at least be the maximum of the input and output
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* size. E.g. Battery info query (0x7) is defined to have 1 byte input
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* size. E.g. Battery info query is defined to have 1 byte input
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* and 128 byte output. The caller would do:
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* buffer = kzalloc(128, GFP_KERNEL);
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* ret = hp_wmi_perform_query(0x7, 0, buffer, 1, 128)
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* ret = hp_wmi_perform_query(HPWMI_BATTERY_QUERY, HPWMI_READ, buffer, 1, 128)
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*/
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static int hp_wmi_perform_query(int query, int write, void *buffer,
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int insize, int outsize)
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static int hp_wmi_perform_query(int query, enum hp_wmi_command command,
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void *buffer, int insize, int outsize)
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{
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struct bios_return *bios_return;
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int actual_outsize;
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union acpi_object *obj;
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struct bios_args args = {
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.signature = 0x55434553,
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.command = write ? 0x2 : 0x1,
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.command = command,
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.commandtype = query,
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.datasize = insize,
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.data = 0,
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@ -245,7 +261,7 @@ static int hp_wmi_perform_query(int query, int write, void *buffer,
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static int hp_wmi_display_state(void)
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{
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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, &state,
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int ret = hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, HPWMI_READ, &state,
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sizeof(state), sizeof(state));
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if (ret)
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return ret < 0 ? ret : -EINVAL;
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@ -255,7 +271,7 @@ static int hp_wmi_display_state(void)
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static int hp_wmi_hddtemp_state(void)
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{
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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, &state,
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int ret = hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, HPWMI_READ, &state,
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sizeof(state), sizeof(state));
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if (ret)
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return ret < 0 ? ret : -EINVAL;
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@ -265,7 +281,7 @@ static int hp_wmi_hddtemp_state(void)
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static int hp_wmi_als_state(void)
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{
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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, &state,
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int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, HPWMI_READ, &state,
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sizeof(state), sizeof(state));
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if (ret)
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return ret < 0 ? ret : -EINVAL;
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@ -275,7 +291,7 @@ static int hp_wmi_als_state(void)
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static int hp_wmi_dock_state(void)
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{
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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state,
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int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, HPWMI_READ, &state,
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sizeof(state), sizeof(state));
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if (ret)
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@ -287,7 +303,7 @@ static int hp_wmi_dock_state(void)
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static int hp_wmi_tablet_state(void)
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{
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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, 0, &state,
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int ret = hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, HPWMI_READ, &state,
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sizeof(state), sizeof(state));
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if (ret)
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return ret < 0 ? ret : -EINVAL;
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@ -298,7 +314,7 @@ static int hp_wmi_tablet_state(void)
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static int __init hp_wmi_bios_2008_later(void)
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{
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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, 0, &state,
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int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, HPWMI_READ, &state,
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sizeof(state), sizeof(state));
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if (!ret)
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return 1;
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@ -309,7 +325,7 @@ static int __init hp_wmi_bios_2008_later(void)
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static int __init hp_wmi_bios_2009_later(void)
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{
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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, 0, &state,
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int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, HPWMI_READ, &state,
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sizeof(state), sizeof(state));
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if (!ret)
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return 1;
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@ -320,7 +336,7 @@ static int __init hp_wmi_bios_2009_later(void)
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static int __init hp_wmi_enable_hotkeys(void)
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{
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int value = 0x6e;
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int ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, 1, &value,
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int ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, HPWMI_WRITE, &value,
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sizeof(value), 0);
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if (ret)
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return ret < 0 ? ret : -EINVAL;
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@ -333,7 +349,7 @@ static int hp_wmi_set_block(void *data, bool blocked)
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int query = BIT(r + 8) | ((!blocked) << r);
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int ret;
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ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1,
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ret = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE,
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&query, sizeof(query), 0);
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if (ret)
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return ret < 0 ? ret : -EINVAL;
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@ -349,7 +365,7 @@ static bool hp_wmi_get_sw_state(enum hp_wmi_radio r)
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int mask = 0x200 << (r * 8);
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int wireless = 0;
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hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
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hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_READ,
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&wireless, sizeof(wireless),
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sizeof(wireless));
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/* TBD: Pass error */
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@ -365,7 +381,7 @@ static bool hp_wmi_get_hw_state(enum hp_wmi_radio r)
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int mask = 0x800 << (r * 8);
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int wireless = 0;
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hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0,
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hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_READ,
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&wireless, sizeof(wireless),
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sizeof(wireless));
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/* TBD: Pass error */
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@ -381,7 +397,7 @@ static int hp_wmi_rfkill2_set_block(void *data, bool blocked)
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int rfkill_id = (int)(long)data;
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char buffer[4] = { 0x01, 0x00, rfkill_id, !blocked };
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if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 1,
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if (hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_WRITE,
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buffer, sizeof(buffer), 0))
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return -EINVAL;
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return 0;
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@ -396,7 +412,7 @@ static int hp_wmi_rfkill2_refresh(void)
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struct bios_rfkill2_state state;
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int err, i;
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err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state,
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err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
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0, sizeof(state));
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if (err)
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return err;
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@ -423,7 +439,7 @@ static int hp_wmi_rfkill2_refresh(void)
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static int hp_wmi_post_code_state(void)
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{
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int state = 0;
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int ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 0, &state,
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int ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, HPWMI_READ, &state,
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sizeof(state), sizeof(state));
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if (ret)
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return ret < 0 ? ret : -EINVAL;
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@ -489,7 +505,7 @@ static ssize_t set_als(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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u32 tmp = simple_strtoul(buf, NULL, 10);
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int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, &tmp,
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int ret = hp_wmi_perform_query(HPWMI_ALS_QUERY, HPWMI_WRITE, &tmp,
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sizeof(tmp), sizeof(tmp));
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if (ret)
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return ret < 0 ? ret : -EINVAL;
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@ -510,7 +526,7 @@ static ssize_t set_postcode(struct device *dev, struct device_attribute *attr,
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/* Clear the POST error code. It is kept until until cleared. */
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tmp = (u32) tmp2;
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ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, 1, &tmp,
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ret = hp_wmi_perform_query(HPWMI_POSTCODEERROR_QUERY, HPWMI_WRITE, &tmp,
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sizeof(tmp), sizeof(tmp));
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if (ret)
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return ret < 0 ? ret : -EINVAL;
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@ -583,7 +599,7 @@ static void hp_wmi_notify(u32 value, void *context)
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case HPWMI_SMART_ADAPTER:
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break;
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case HPWMI_BEZEL_BUTTON:
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ret = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0,
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ret = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, HPWMI_READ,
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&key_code,
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sizeof(key_code),
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sizeof(key_code));
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@ -718,12 +734,12 @@ static int __init hp_wmi_rfkill_setup(struct platform_device *device)
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{
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int err, wireless = 0;
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err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, &wireless,
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err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_READ, &wireless,
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sizeof(wireless), sizeof(wireless));
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if (err)
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return err;
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err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, &wireless,
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err = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, HPWMI_WRITE, &wireless,
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sizeof(wireless), 0);
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if (err)
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return err;
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@ -803,7 +819,7 @@ static int __init hp_wmi_rfkill2_setup(struct platform_device *device)
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struct bios_rfkill2_state state;
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int err, i;
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err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, 0, &state,
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err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
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0, sizeof(state));
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if (err)
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return err;
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