LCOV - code coverage report
Current view: top level - include/linux - i2c-smbus.h (source / functions) Hit Total Coverage
Test: combined.info Lines: 0 2 0.0 %
Date: 2022-04-01 14:17:54 Functions: 0 0 -
Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /* SPDX-License-Identifier: GPL-2.0-or-later */
       2                 :            : /*
       3                 :            :  * i2c-smbus.h - SMBus extensions to the I2C protocol
       4                 :            :  *
       5                 :            :  * Copyright (C) 2010 Jean Delvare <jdelvare@suse.de>
       6                 :            :  */
       7                 :            : 
       8                 :            : #ifndef _LINUX_I2C_SMBUS_H
       9                 :            : #define _LINUX_I2C_SMBUS_H
      10                 :            : 
      11                 :            : #include <linux/i2c.h>
      12                 :            : #include <linux/spinlock.h>
      13                 :            : #include <linux/workqueue.h>
      14                 :            : 
      15                 :            : 
      16                 :            : /**
      17                 :            :  * i2c_smbus_alert_setup - platform data for the smbus_alert i2c client
      18                 :            :  * @alert_edge_triggered: whether the alert interrupt is edge (1) or level (0)
      19                 :            :  *              triggered
      20                 :            :  * @irq: IRQ number, if the smbus_alert driver should take care of interrupt
      21                 :            :  *              handling
      22                 :            :  *
      23                 :            :  * If irq is not specified, the smbus_alert driver doesn't take care of
      24                 :            :  * interrupt handling. In that case it is up to the I2C bus driver to either
      25                 :            :  * handle the interrupts or to poll for alerts.
      26                 :            :  *
      27                 :            :  * If irq is specified then it it crucial that alert_edge_triggered is
      28                 :            :  * properly set.
      29                 :            :  */
      30                 :            : struct i2c_smbus_alert_setup {
      31                 :            :         int                     irq;
      32                 :            : };
      33                 :            : 
      34                 :            : struct i2c_client *i2c_setup_smbus_alert(struct i2c_adapter *adapter,
      35                 :            :                                          struct i2c_smbus_alert_setup *setup);
      36                 :            : int i2c_handle_smbus_alert(struct i2c_client *ara);
      37                 :            : 
      38                 :            : #if IS_ENABLED(CONFIG_I2C_SMBUS) && IS_ENABLED(CONFIG_OF)
      39                 :            : int of_i2c_setup_smbus_alert(struct i2c_adapter *adap);
      40                 :            : #else
      41                 :          0 : static inline int of_i2c_setup_smbus_alert(struct i2c_adapter *adap)
      42                 :            : {
      43                 :          0 :         return 0;
      44                 :            : }
      45                 :            : #endif
      46                 :            : 
      47                 :            : #endif /* _LINUX_I2C_SMBUS_H */

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