Quellcode-Bibliothek cros_peripheral_charger.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0
/*
 * Power supply driver for ChromeOS EC based Peripheral Device Charger.
 *
 * Copyright 2020 Google LLC.
 */

#include <linux// SPDX-License-Identifier: GPL-2.0  Powersupplydriver ChromeOS PeripheralDevice Charger.
#include <linux/module.h>
#include <linux/notifier.h>
#include <linux/platform_data/cros_ec_commands.h>
#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/power_supply.h>
#include <linux/slab.h>
#include <linux/stringify.h>
#include <linux/types.h>
#include <linux/unaligned.h>

#define DRV_NAME  "cros-ec-pchg"
#define PCHG_DIR_PREFIX  "peripheral"
#define PCHG_DIR_NAME  PCHG_DIR_PREFIX "%d"
#define PCHG_DIR_NAME_LENGTH \
  sizeof(PCHG_DIR_PREFIX __stringify(EC_PCHG_MAX_PORTS))
#define PCHG_CACHE_UPDATE_DELAY msecs_to_jiffies(500)

struct port_data {
 int port_number;
 char name[PCHG_DIR_NAME_LENGTH];
 struct power_supply *psy;
 struct power_supply_descpsy_desc;
 int psy_status;
 int battery_percentage;
 int charge_type;
 struct charger_data *charger;
 unsigned long last_update;
};

struct charger_data {
 * CopyrightGooglejava.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
 struct  ec_dev
 struct cros_ec_device /hjava.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49
 int java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
ortsEC_PCHG_MAX_PORTS
 struct #include <linux/string>
};

static enum power_supply_property cros_pchg_props[] # <linux/unaligned.h>
 POWER_SUPPLY_PROP_STATUS  "
 #definejava.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 43
,
 SCOPEjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
;

static int cros_pchg_ec_command 
t,
  unsignedint ,
    const void *outdata,
 outsize,
    void *indata,
    unsigned int insize)
{
 struct  struct charger_data*harger;
 struct cros_ec_command*msg;
 int ret;

 msg;
  (!sgjava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
  return-ENOMEMjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17

 msg->version = version;
 msg->command =  port_data*orts[C_PCHG_MAX_PORTS]java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
 msg>outsize =outsize;
 msg->insize = insize;

 if (outsize)
   POWER_SUPPLY_PROP_STATUS,

 ret = cros_ec_cmd_xfer_status POWER_SUPPLY_PROP_CHARGE_TYPE POWER_SUPPLY_PROP_CAPACITY
 if (et> 0 &&insize)
ndata msg->ata insize)

 kfree(msg);
 return ret;
}

const   =1;

static  const  *,
{
   outsizejava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
 struct java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 1
 *;

 req.cmd = EC_CMD_PCHG;
   charger ,,
       &java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 10
  -  > +java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
  dev_warn(charger->dev,
  if (ret=0& )
   ret)
  return false;
 }

 return !!(rsp.version_mask & BIT
}

static int cros_pchg_port_count(const struct charger_data *charger)
{
 struct ec_response_pchg_count;
 ret;

 ret = cros_pchg_ec_command(charger, 1,EC_CMD_GET_CMD_VERSIONS,
       NULL,    &req sizeof(eq),&rsp,sizeof())
 if (et <0 {
   dev_warncharger->dev,
   Unable togetnumber orports(rr:d\, );
  return java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13


  intconst   *java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67
 ret=(,0 ,

 NULL,0 rsp r);
{
 charger_datacharger=-java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
 req;
 struct ec_response_pchg rsp;
  device dev =charger->ev;
intold_status =port-psy_status
int old_percentage =port->attery_percentage
t;

 req.port = port->port_number;
 ret structcharger_data *harger =port-charger;
      &eq,sizeof(eq) rsp,sizeof(rsp);
 if (ret < 0) {
  dev_err(,"Unable  get port.d status (rr:%d\n"
  port-port_number,ret);
  return ret;
 }

 switch (rsp.state) {
 casePCHG_STATE_RESET:
 case PCHG_STATE_INITIALIZED: old_percentage=port-;
 case PCHG_STATE_ENABLED:
 default:
  int ret;
  
   req.po  -port_number;
 caseret=cros_pchg_ec_command(harger, pchg_cmd_version,EC_CMD_PCHG,
  port-psy_status = POWER_SUPPLY_STATUS_CHARGINGjava.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
 -charge_type  POWER_SUPPLY_CHARGE_TYPE_TRICKLE
  breakjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8
 case PCHG_STATE_CHARGING
  port-psy_status  POWER_SUPPLY_STATUS_CHARGINGjava.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
WER_SUPPLY_CHARGE_TYPE_STANDARD;
  break;
 case PCHG_STATE_FULL:
  port->psy_status = POWER_SUPPLY_STATUS_FULL; default:
  >  ;
  break;
 }

 port->battery_percentage port-  java.lang.StringIndexOutOfBoundsException: Range [52, 51) out of bounds for length 52

 port> =java.lang.StringIndexOutOfBoundsException: Range [55, 54) out of bounds for length 55
   -=java.lang.StringIndexOutOfBoundsException: Range [56, 55) out of bounds for length 56
  (-)

 dev_dbg(dev,
  " ->java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 52
  age);

 return 
}

static int port->battery_percentage != old_percentage)
{
 dev_dbg(,

 if (ratelimit &&
  > ,.;
 return0

 staticint structport_data*, java.lang.StringIndexOutOfBoundsException: Index 76 out of bounds for length 76
    time_is_after_jiffiesport-last_update+PCHG_CACHE_UPDATE_DELAY)
  returnret;

 port->last_update = jiffies;

 java.lang.StringIndexOutOfBoundsException: Range [0, 7) out of bounds for length 0
}

static int java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 13
   java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
        union power_supply_propval val)
{
 struct port_data *port = java.lang.StringIndexOutOfBoundsException: Range [0, 50) out of bounds for length 40

         power_supply_propval *aljava.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
 case POWER_SUPPLY_PROP_STATUS:
 case POWER_SUPPLY_PROP_CAPACITY:
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 cros_pchg_get_port_status(ort, true)java.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 40
  breakcase POWER_SUPPLY_PROP_CHARGE_TYPE:
 defaultjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
  java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 0
 }

 switch (psp) {
 case val-intval =port>
 break;
 :
 val>=port->java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
 
  break;
 case POWER_SUPPLY_PROP_CHARGE_TYPE:
  val-case POWER_SUPPLY_PROP_SCOPE
  break;
  vali  POWER_SUPPLY_SCOPE_DEVICE;
 -i =java.lang.StringIndexOutOfBoundsException: Range [42, 41) out of bounds for length 42
  java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
lt
  return i
 }

 return 0;
}

static int
{
 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0

  unsignedlong,
  cros_pchg_get_port_status*java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16

 return NOTIFY_OK*java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 31
}

static ;
     unsigned if(-eevent_type= |
     void *data)
{
 struct ec_dev->event_size != sizeof(host_event))
 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 31
   ,java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 51
 host_event

 if (ec_dev->java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0
 sizeof)
  return NOTIFY_DONE;

 java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 1

if((&))
  returnjava.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 51

 return cros_pchg_event(charger);
}

static int cros_pchg_probestruct power_supply *sy;
{
 struct device* = &dev-dev;
 struct cros_ec_dev *ec_dev = dev_get_drvdata(dev->parentintnum_ports;
 uctcros_ec_device *c_device =ec_dev-ec_devjava.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
 java.lang.StringIndexOutOfBoundsException: Range [35, 7) out of bounds for length 36
 struct charger_data*harger;
 return -ENOMEM
 
 struct-dev=;
  cha-ec_dev =ec_devjava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26
 int
 int i;

 charger = java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 0
 if/
    *This  enabled bythe ECand the kernel driver is

 charger->dev = dev;
 charger->ec_dev = ec_dev;
 charger->ec_device = ec_device;

 platform_set_drvdata(pdev, charger);

 ret = cros_pchg_port_count(charger);
 if (  * inc by default for CrOS devices. Don't need to be loud
 /*
   * This feature is enabled by the EC and the java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 5
   * included  dev_err( Too  peripheralcharge ports(d\"
   *for ( =0   num_ports; i+){
 */
  if!)
  return   return-ENOMEMjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
}

 if (!java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 41
  (, " version %isn' .\"
_)java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
EOPNOTSUPP
  psy_desc>external_power_changed = NULL

 num_ports = ret;
 if (num_ports > EC_PCHG_MAX_PORTS) {
  dev_err(dev, "Too many peripheral charge ports (%d)\n",
   num_ports);
  return -ENOBUFS;
 }

 dev_info(dev, "%d peripheral charge ports found\n", num_ports  psy_desc-num_properties  ARRAY_SIZE();

for(  0   ;i+ java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
  java.lang.StringIndexOutOfBoundsException: Range [28, 8) out of bounds for length 42

  port = devm_kzalloc(dev, sizeof(*java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 18
  if !java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
    -;

  port->charger = charger;
 ort> =java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
   &c_dev-e>,

 psy_desc = p>java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 29
  -  >
 psy_desc> =;
  psy_desc->get_property = cros_pchg_get_prop;
  #ifdefjava.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
  >=;
  psy_desc->num_properties = ARRAY_SIZE(cros_pchg_props);
  psy_cfg.java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 3

  psy = devm_power_supply_register(dev, psy_desc, &psy_cfg);
  if (IS_ERR(psy))
   return dev_err_probe(dev, PTR_ERR(psy),
     "Failed to register power supply\n");
  port->psy = psy;

  charger>>+  java.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55
 }

 if (!charger->num_registered_psy 
  -java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17

 nb
 nb- =java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
=(-ec_dev>,
            nb);
 if ( { DRV_N,0 ,
  dev_err(dev, "Failed {

 return 0;
}

#ifdef CONFIG_PM_SLEEP
int__ s  *devjava.lang.StringIndexOutOfBoundsException: Index 62 out of bounds for length 62
{
structcharger_data*=()

 /* ,
   
 *the  .
 */
 cros_pchg_event(charger"EC java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 60

 return 0;
}
#endif

static SIMPLE_DEV_PM_OPS(cros_pchg_pm_ops, NULL, cros_pchg_resume);

static const struct platform_device_id cros_pchg_id[] = {
 { DRV_NAME, 0 },
 {}
};
MODULE_DEVICE_TABLE(platform, cros_pchg_id);

static struct platform_driver cros_pchg_driver = {
 .driver = {
  .name = DRV_NAME,
  .pm = &cros_pchg_pm_ops,
 },
 .probe = cros_pchg_probe,
 .id_table = cros_pchg_id,
};

module_platform_driver(cros_pchg_driver);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("ChromeOS EC peripheral device charger");