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Usb powershare feature #566

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7 changes: 7 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -129,6 +129,13 @@ This driver exports a few files in its own platform device, msi-ec, and is avail
- on: cooler boost function is enabled
- off: cooler boost function is disabled

- `/sys/devices/platform/msi-ec/usb_powershare`
- Description: This entry allows enabling the usb powershare function. It provides power to charge devices via USB ports while device is suspended.
- Access: Read, Write
- Valid values:
- on: usb powershare function is enabled
- off: usb powershare function is disabled

- `/sys/devices/platform/msi-ec/available_shift_modes`
- Description: This entry reports all supported shift modes.
- Access: Read
Expand Down
6 changes: 6 additions & 0 deletions docs/sysfs-platform-msi-ec
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Expand Up @@ -26,6 +26,12 @@ Description:
to the maximum speed for quicker cooling.
Valid values: "on", "off".

What: /sys/devices/platform/<platform>/usb_powershare
Description:
Control the usb powershare feature. This feature enables
usb charging while device is suspended or powered off.
Valid values: "on", "off".

What: /sys/devices/platform/<platform>/available_shift_modes
Description:
Read-only, shows the list of available shift modes for
Expand Down
6 changes: 6 additions & 0 deletions ec_memory_configuration.h
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Expand Up @@ -33,6 +33,11 @@ struct msi_ec_cooler_boost_conf {
int bit;
};

struct msi_ec_usb_powershare_conf {
int address;
int bit;
};

#define MSI_EC_MODE_NULL { NULL, 0 }
struct msi_ec_mode {
const char *name;
Expand Down Expand Up @@ -89,6 +94,7 @@ struct msi_ec_conf {
struct msi_ec_webcam_conf webcam;
struct msi_ec_fn_win_swap_conf fn_win_swap;
struct msi_ec_cooler_boost_conf cooler_boost;
struct msi_ec_usb_powershare_conf usb_powershare;
struct msi_ec_shift_mode_conf shift_mode;
struct msi_ec_super_battery_conf super_battery;
struct msi_ec_fan_mode_conf fan_mode;
Expand Down
120 changes: 120 additions & 0 deletions msi-ec.c
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Expand Up @@ -81,6 +81,10 @@ static struct msi_ec_conf CONF_G1_0 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xf2,
.modes = {
Expand Down Expand Up @@ -157,6 +161,10 @@ static struct msi_ec_conf CONF_G1_1 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xf2,
.modes = {
Expand Down Expand Up @@ -228,6 +236,10 @@ static struct msi_ec_conf CONF_G1_2 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xf2,
.modes = {
Expand Down Expand Up @@ -308,6 +320,10 @@ static struct msi_ec_conf CONF_G1_3 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xf2,
.modes = {
Expand Down Expand Up @@ -378,6 +394,10 @@ static struct msi_ec_conf CONF_G1_4 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xf2,
.modes = {
Expand Down Expand Up @@ -451,6 +471,10 @@ static struct msi_ec_conf CONF_G1_5 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xf2,
.modes = {
Expand Down Expand Up @@ -528,6 +552,10 @@ static struct msi_ec_conf CONF_G1_6 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xf2,
.modes = {
Expand Down Expand Up @@ -609,6 +637,10 @@ static struct msi_ec_conf CONF_G1_7 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xf2,
.modes = {
Expand Down Expand Up @@ -678,6 +710,10 @@ static struct msi_ec_conf CONF_G1_8 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xf2,
.modes = {
Expand Down Expand Up @@ -747,6 +783,10 @@ static struct msi_ec_conf CONF_G1_9 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xf2,
.modes = {
Expand Down Expand Up @@ -814,6 +854,10 @@ static struct msi_ec_conf CONF_G1_10 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xf2,
.modes = {
Expand Down Expand Up @@ -887,6 +931,10 @@ static struct msi_ec_conf CONF_G1_11 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xf2,
.modes = {
Expand Down Expand Up @@ -954,6 +1002,10 @@ static struct msi_ec_conf CONF_G1_13 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xf2,
.modes = {
Expand Down Expand Up @@ -1034,6 +1086,10 @@ static struct msi_ec_conf CONF_G2_0 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xd2,
.modes = {
Expand Down Expand Up @@ -1149,6 +1205,10 @@ static struct msi_ec_conf CONF_G2_1 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xd2,
.modes = {
Expand Down Expand Up @@ -1234,6 +1294,10 @@ static struct msi_ec_conf CONF_G2_2 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xd2,
.modes = {
Expand Down Expand Up @@ -1320,6 +1384,10 @@ static struct msi_ec_conf CONF_G2_3 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = 0xbf,
.bit = 5,
},
.shift_mode = {
.address = 0xd2,
.modes = {
Expand Down Expand Up @@ -1388,6 +1456,10 @@ static struct msi_ec_conf CONF_G2_4 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xd2,
.modes = {
Expand Down Expand Up @@ -1458,6 +1530,10 @@ static struct msi_ec_conf CONF_G2_5 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xd2,
.modes = {
Expand Down Expand Up @@ -1539,6 +1615,10 @@ static struct msi_ec_conf CONF_G2_6 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xd2,
.modes = {
Expand Down Expand Up @@ -1657,6 +1737,10 @@ static struct msi_ec_conf CONF_G2_10 __initdata = {
.address = 0x98,
.bit = 7,
},
.usb_powershare = {
.address = MSI_EC_ADDR_UNKNOWN,
.bit = 5,
},
.shift_mode = {
.address = 0xd2,
.modes = {
Expand Down Expand Up @@ -2194,6 +2278,37 @@ static ssize_t cooler_boost_store(struct device *dev,
return count;
}

static ssize_t usb_powershare_show(struct device *device,
struct device_attribute *attr, char *buf)
{
int result;
bool value;

result = ec_check_bit(conf.usb_powershare.address, conf.usb_powershare.bit, &value);
if (result < 0)
return result;

return sysfs_emit(buf, "%s\n", str_on_off(value));
}

static ssize_t usb_powershare_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int result;
bool value;

result = kstrtobool(buf, &value);
if (result)
return result;

result = ec_set_bit(conf.usb_powershare.address, conf.usb_powershare.bit, value);
if (result < 0)
return result;

return count;
}

static ssize_t available_shift_modes_show(struct device *device,
struct device_attribute *attr,
char *buf)
Expand Down Expand Up @@ -2413,6 +2528,7 @@ static DEVICE_ATTR_RW(webcam_block);
static DEVICE_ATTR_RW(fn_key);
static DEVICE_ATTR_RW(win_key);
static DEVICE_ATTR_RW(cooler_boost);
static DEVICE_ATTR_RW(usb_powershare);
static DEVICE_ATTR_RO(available_shift_modes);
static DEVICE_ATTR_RW(shift_mode);
static DEVICE_ATTR_RW(super_battery);
Expand All @@ -2427,6 +2543,7 @@ static struct attribute *msi_root_attrs[] = {
&dev_attr_fn_key.attr,
&dev_attr_win_key.attr,
&dev_attr_cooler_boost.attr,
&dev_attr_usb_powershare.attr,
&dev_attr_available_shift_modes.attr,
&dev_attr_shift_mode.attr,
&dev_attr_super_battery.attr,
Expand Down Expand Up @@ -2774,6 +2891,9 @@ static umode_t msi_ec_is_visible(struct kobject *kobj,
else if (attr == &dev_attr_cooler_boost.attr)
address = conf.cooler_boost.address;

else if (attr == &dev_attr_usb_powershare.attr)
address = conf.usb_powershare.address;

else if (attr == &dev_attr_available_shift_modes.attr ||
attr == &dev_attr_shift_mode.attr)
address = conf.shift_mode.address;
Expand Down