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cros_ec: Add new features for events and power

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This adds new commands to the EC related to setting and clearing events
as well as controlling power-related settings.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass
2018-11-06 15:21:22 -07:00
parent 4bf6f2ad47
commit 72ef8bfd6d
3 changed files with 429 additions and 7 deletions
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89
include/cros_ec.h
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@@ -187,6 +187,14 @@ int cros_ec_flash_protect(struct udevice *dev, uint32_t set_mask,
uint32_t set_flags,
struct ec_response_flash_protect *resp);
/**
* Notify EC of current boot mode
*
* @param dev CROS-EC device
* @param vboot_mode Verified boot mode
* @return 0 if ok, <0 on error
*/
int cros_ec_entering_mode(struct udevice *dev, int mode);
/**
* Run internal tests on the cros_ec interface.
@@ -397,4 +405,85 @@ struct i2c_msg;
int cros_ec_i2c_tunnel(struct udevice *dev, int port, struct i2c_msg *msg,
int nmsgs);
/**
* cros_ec_get_events_b() - Get event mask B
*
* @return value of event mask, default value of 0 if it could not be read
*/
uint64_t cros_ec_get_events_b(struct udevice *dev);
/**
* cros_ec_clear_events_b() - Clear even mask B
*
* Any pending events in the B range are cleared
*
* @return 0 if OK, -ve on error
*/
int cros_ec_clear_events_b(struct udevice *dev, uint64_t mask);
/**
* cros_ec_efs_verify() - tell the EC to verify one of its images
*
* @param dev CROS-EC device
* @param region Flash region to query
* @return 0 if OK, -ve on error
*/
int cros_ec_efs_verify(struct udevice *dev, enum ec_flash_region region);
/**
* cros_ec_battery_cutoff() - Request that the battery be cut off
*
* This tells the battery to stop supplying power. This is used before shipping
* a device to ensure that the battery remains charged while the device is
* shipped or sitting on the shelf waiting to be purchased.
*
* @param dev CROS-EC device
* @param flags Flags to use (EC_BATTERY_CUTOFF_FLAG_...)
* @return 0 if OK, -ve on error
*/
int cros_ec_battery_cutoff(struct udevice *dev, uint8_t flags);
/**
* cros_ec_read_limit_power() - Check if power is limited by batter/charger
*
* Sometimes the battery is low and / or the device is connected to a charger
* that cannot supply much power.
*
* @param dev CROS-EC device
* @param limit_powerp Returns whether power is limited (0 or 1)
* @return 0 if OK, -ENOSYS if the EC does not support this comment, -EINVAL
* if the EC returned an invalid response
*/
int cros_ec_read_limit_power(struct udevice *dev, int *limit_powerp);
/**
* cros_ec_config_powerbtn() - Configure the behaviour of the power button
*
* @param dev CROS-EC device
* @param flags Flags to use (EC_POWER_BUTTON_...)
* @return 0 if OK, -ve on error
*/
int cros_ec_config_powerbtn(struct udevice *dev, uint32_t flags);
/**
* cros_ec_get_lid_shutdown_mask() - Set the lid shutdown mask
*
* Determines whether a lid close event is reported
*
* @param dev CROS-EC device
* @return shufdown mas if OK, -ve on error
*/
int cros_ec_get_lid_shutdown_mask(struct udevice *dev);
/**
* cros_ec_set_lid_shutdown_mask() - Set the lid shutdown mask
*
* Set whether a lid close event is reported
*
* @param dev CROS-EC device
* @param enable true to enable reporting, false to disable
* @return shufdown mas if OK, -ve on error
*/
int cros_ec_set_lid_shutdown_mask(struct udevice *dev, int enable);
#endif