diff options
author | Naresh Solanki <naresh.solanki@9elements.com> | 2023-12-05 16:22:04 +0530 |
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committer | Mark Brown <broonie@kernel.org> | 2023-12-06 13:14:54 +0000 |
commit | 16e5ac127d8d18adf85fe5ba847d77b58d1ed418 (patch) | |
tree | 96801e386a05ff7c824500ae7cb816d91999f9af /include/uapi/regulator | |
parent | 753e4d5c433da57da75dd4c3e1aececc8e874a62 (diff) |
regulator: event: Add regulator netlink event support
This commit introduces netlink event support to the regulator subsystem.
Changes:
- Introduce event.c and regnl.h for netlink event handling.
- Implement reg_generate_netlink_event to broadcast regulator events.
- Update Makefile to include the new event.c file.
Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com>
Link: https://lore.kernel.org/r/20231205105207.1262928-1-naresh.solanki@9elements.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/uapi/regulator')
-rw-r--r-- | include/uapi/regulator/regulator.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/include/uapi/regulator/regulator.h b/include/uapi/regulator/regulator.h new file mode 100644 index 000000000000..d2b5612198b6 --- /dev/null +++ b/include/uapi/regulator/regulator.h @@ -0,0 +1,90 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* + * Regulator uapi header + * + * Author: Naresh Solanki <Naresh.Solanki@9elements.com> + */ + +#ifndef _UAPI_REGULATOR_H +#define _UAPI_REGULATOR_H + +#ifdef __KERNEL__ +#include <linux/types.h> +#else +#include <stdint.h> +#endif + +/* + * Regulator notifier events. + * + * UNDER_VOLTAGE Regulator output is under voltage. + * OVER_CURRENT Regulator output current is too high. + * REGULATION_OUT Regulator output is out of regulation. + * FAIL Regulator output has failed. + * OVER_TEMP Regulator over temp. + * FORCE_DISABLE Regulator forcibly shut down by software. + * VOLTAGE_CHANGE Regulator voltage changed. + * Data passed is old voltage cast to (void *). + * DISABLE Regulator was disabled. + * PRE_VOLTAGE_CHANGE Regulator is about to have voltage changed. + * Data passed is "struct pre_voltage_change_data" + * ABORT_VOLTAGE_CHANGE Regulator voltage change failed for some reason. + * Data passed is old voltage cast to (void *). + * PRE_DISABLE Regulator is about to be disabled + * ABORT_DISABLE Regulator disable failed for some reason + * + * NOTE: These events can be OR'ed together when passed into handler. + */ + +#define REGULATOR_EVENT_UNDER_VOLTAGE 0x01 +#define REGULATOR_EVENT_OVER_CURRENT 0x02 +#define REGULATOR_EVENT_REGULATION_OUT 0x04 +#define REGULATOR_EVENT_FAIL 0x08 +#define REGULATOR_EVENT_OVER_TEMP 0x10 +#define REGULATOR_EVENT_FORCE_DISABLE 0x20 +#define REGULATOR_EVENT_VOLTAGE_CHANGE 0x40 +#define REGULATOR_EVENT_DISABLE 0x80 +#define REGULATOR_EVENT_PRE_VOLTAGE_CHANGE 0x100 +#define REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE 0x200 +#define REGULATOR_EVENT_PRE_DISABLE 0x400 +#define REGULATOR_EVENT_ABORT_DISABLE 0x800 +#define REGULATOR_EVENT_ENABLE 0x1000 +/* + * Following notifications should be emitted only if detected condition + * is such that the HW is likely to still be working but consumers should + * take a recovery action to prevent problems esacalating into errors. + */ +#define REGULATOR_EVENT_UNDER_VOLTAGE_WARN 0x2000 +#define REGULATOR_EVENT_OVER_CURRENT_WARN 0x4000 +#define REGULATOR_EVENT_OVER_VOLTAGE_WARN 0x8000 +#define REGULATOR_EVENT_OVER_TEMP_WARN 0x10000 +#define REGULATOR_EVENT_WARN_MASK 0x1E000 + +struct reg_genl_event { + char reg_name[32]; + uint64_t event; +}; + +/* attributes of reg_genl_family */ +enum { + REG_GENL_ATTR_UNSPEC, + REG_GENL_ATTR_EVENT, /* reg event info needed by user space */ + __REG_GENL_ATTR_MAX, +}; + +#define REG_GENL_ATTR_MAX (__REG_GENL_ATTR_MAX - 1) + +/* commands supported by the reg_genl_family */ +enum { + REG_GENL_CMD_UNSPEC, + REG_GENL_CMD_EVENT, /* kernel->user notifications for reg events */ + __REG_GENL_CMD_MAX, +}; + +#define REG_GENL_CMD_MAX (__REG_GENL_CMD_MAX - 1) + +#define REG_GENL_FAMILY_NAME "reg_event" +#define REG_GENL_VERSION 0x01 +#define REG_GENL_MCAST_GROUP_NAME "reg_mc_group" + +#endif /* _UAPI_REGULATOR_H */ |