__ __ __ __ _____ _ _ _____ _ _ _ | \/ | \ \ / / | __ \ (_) | | / ____| | | | | | \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | | | |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | | | | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | | |_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1 if you need WebShell for Seo everyday contact me on Telegram Telegram Address : @jackleetFor_More_Tools:
/* SPDX-License-Identifier: GPL-2.0 */
/*
* ChromeOS Wilco Embedded Controller
*
* Copyright 2018 Google LLC
*/
#ifndef WILCO_EC_H
#define WILCO_EC_H
#include <linux/mutex.h>
#include <linux/types.h>
/* Message flags for using the mailbox() interface */
#define WILCO_EC_FLAG_NO_RESPONSE BIT(0) /* EC does not respond */
/* Normal commands have a maximum 32 bytes of data */
#define EC_MAILBOX_DATA_SIZE 32
struct device;
struct resource;
struct platform_device;
/**
* struct wilco_ec_device - Wilco Embedded Controller handle.
* @dev: Device handle.
* @mailbox_lock: Mutex to ensure one mailbox command at a time.
* @io_command: I/O port for mailbox command. Provided by ACPI.
* @io_data: I/O port for mailbox data. Provided by ACPI.
* @io_packet: I/O port for mailbox packet data. Provided by ACPI.
* @data_buffer: Buffer used for EC communication. The same buffer
* is used to hold the request and the response.
* @data_size: Size of the data buffer used for EC communication.
* @debugfs_pdev: The child platform_device used by the debugfs sub-driver.
* @rtc_pdev: The child platform_device used by the RTC sub-driver.
* @charger_pdev: Child platform_device used by the charger config sub-driver.
* @telem_pdev: The child platform_device used by the telemetry sub-driver.
*/
struct wilco_ec_device {
struct device *dev;
struct mutex mailbox_lock;
struct resource *io_command;
struct resource *io_data;
struct resource *io_packet;
void *data_buffer;
size_t data_size;
struct platform_device *debugfs_pdev;
struct platform_device *rtc_pdev;
struct platform_device *charger_pdev;
struct platform_device *telem_pdev;
};
/**
* struct wilco_ec_request - Mailbox request message format.
* @struct_version: Should be %EC_MAILBOX_PROTO_VERSION
* @checksum: Sum of all bytes must be 0.
* @mailbox_id: Mailbox identifier, specifies the command set.
* @mailbox_version: Mailbox interface version %EC_MAILBOX_VERSION
* @reserved: Set to zero.
* @data_size: Length of following data.
*/
struct wilco_ec_request {
u8 struct_version;
u8 checksum;
u16 mailbox_id;
u8 mailbox_version;
u8 reserved;
u16 data_size;
} __packed;
/**
* struct wilco_ec_response - Mailbox response message format.
* @struct_version: Should be %EC_MAILBOX_PROTO_VERSION
* @checksum: Sum of all bytes must be 0.
* @result: Result code from the EC. Non-zero indicates an error.
* @data_size: Length of the response data buffer.
* @reserved: Set to zero.
* @data: Response data buffer. Max size is %EC_MAILBOX_DATA_SIZE_EXTENDED.
*/
struct wilco_ec_response {
u8 struct_version;
u8 checksum;
u16 result;
u16 data_size;
u8 reserved[2];
u8 data[];
} __packed;
/**
* enum wilco_ec_msg_type - Message type to select a set of command codes.
* @WILCO_EC_MSG_LEGACY: Legacy EC messages for standard EC behavior.
* @WILCO_EC_MSG_PROPERTY: Get/Set/Sync EC controlled NVRAM property.
* @WILCO_EC_MSG_TELEMETRY: Request telemetry data from the EC.
*/
enum wilco_ec_msg_type {
WILCO_EC_MSG_LEGACY = 0x00f0,
WILCO_EC_MSG_PROPERTY = 0x00f2,
WILCO_EC_MSG_TELEMETRY = 0x00f5,
};
/**
* struct wilco_ec_message - Request and response message.
* @type: Mailbox message type.
* @flags: Message flags, e.g. %WILCO_EC_FLAG_NO_RESPONSE.
* @request_size: Number of bytes to send to the EC.
* @request_data: Buffer containing the request data.
* @response_size: Number of bytes to read from EC.
* @response_data: Buffer containing the response data, should be
* response_size bytes and allocated by caller.
*/
struct wilco_ec_message {
enum wilco_ec_msg_type type;
u8 flags;
size_t request_size;
void *request_data;
size_t response_size;
void *response_data;
};
/**
* wilco_ec_mailbox() - Send request to the EC and receive the response.
* @ec: Wilco EC device.
* @msg: Wilco EC message.
*
* Return: Number of bytes received or negative error code on failure.
*/
int wilco_ec_mailbox(struct wilco_ec_device *ec, struct wilco_ec_message *msg);
/**
* wilco_keyboard_leds_init() - Set up the keyboard backlight LEDs.
* @ec: EC device to query.
*
* After this call, the keyboard backlight will be exposed through a an LED
* device at /sys/class/leds.
*
* This may sleep because it uses wilco_ec_mailbox().
*
* Return: 0 on success, negative error code on failure.
*/
int wilco_keyboard_leds_init(struct wilco_ec_device *ec);
/*
* A Property is typically a data item that is stored to NVRAM
* by the EC. Each of these data items has an index associated
* with it, known as the Property ID (PID). Properties may have
* variable lengths, up to a max of WILCO_EC_PROPERTY_MAX_SIZE
* bytes. Properties can be simple integers, or they may be more
* complex binary data.
*/
#define WILCO_EC_PROPERTY_MAX_SIZE 4
/**
* struct ec_property_set_msg - Message to get or set a property.
* @property_id: Which property to get or set.
* @length: Number of bytes of |data| that are used.
* @data: Actual property data.
*/
struct wilco_ec_property_msg {
u32 property_id;
int length;
u8 data[WILCO_EC_PROPERTY_MAX_SIZE];
};
/**
* wilco_ec_get_property() - Retrieve a property from the EC.
* @ec: Embedded Controller device.
* @prop_msg: Message for request and response.
*
* The property_id field of |prop_msg| should be filled before calling this
* function. The result will be stored in the data and length fields.
*
* Return: 0 on success, negative error code on failure.
*/
int wilco_ec_get_property(struct wilco_ec_device *ec,
struct wilco_ec_property_msg *prop_msg);
/**
* wilco_ec_set_property() - Store a property on the EC.
* @ec: Embedded Controller device.
* @prop_msg: Message for request and response.
*
* The property_id, length, and data fields of |prop_msg| should be
* filled before calling this function.
*
* Return: 0 on success, negative error code on failure.
*/
int wilco_ec_set_property(struct wilco_ec_device *ec,
struct wilco_ec_property_msg *prop_msg);
/**
* wilco_ec_get_byte_property() - Retrieve a byte-size property from the EC.
* @ec: Embedded Controller device.
* @property_id: Which property to retrieve.
* @val: The result value, will be filled by this function.
*
* Return: 0 on success, negative error code on failure.
*/
int wilco_ec_get_byte_property(struct wilco_ec_device *ec, u32 property_id,
u8 *val);
/**
* wilco_ec_get_byte_property() - Store a byte-size property on the EC.
* @ec: Embedded Controller device.
* @property_id: Which property to store.
* @val: Value to store.
*
* Return: 0 on success, negative error code on failure.
*/
int wilco_ec_set_byte_property(struct wilco_ec_device *ec, u32 property_id,
u8 val);
/**
* wilco_ec_add_sysfs() - Create sysfs entries
* @ec: Wilco EC device
*
* wilco_ec_remove_sysfs() needs to be called afterwards
* to perform the necessary cleanup.
*
* Return: 0 on success or negative error code on failure.
*/
int wilco_ec_add_sysfs(struct wilco_ec_device *ec);
void wilco_ec_remove_sysfs(struct wilco_ec_device *ec);
#endif /* WILCO_EC_H */
| Name | Type | Size | Permission | Actions |
|---|---|---|---|---|
| gpio | Folder | 0755 |
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| media | Folder | 0755 |
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| txx9 | Folder | 0755 |
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| x86 | Folder | 0755 |
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| i2c-gpio.h | File | 1.05 KB | 0644 |
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| lv5207lp.h | File | 273 B | 0644 |
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| max197.h | File | 615 B | 0644 |
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| max3421-hcd.h | File | 808 B | 0644 |
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| max732x.h | File | 573 B | 0644 |
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| mcs.h | File | 693 B | 0644 |
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| mdio-bcm-unimac.h | File | 275 B | 0644 |
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| mdio-gpio.h | File | 273 B | 0644 |
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| mfd-mcp-sa11x0.h | File | 272 B | 0644 |
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| microchip-ksz.h | File | 961 B | 0644 |
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| mlxcpld.h | File | 885 B | 0644 |
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| mlxreg.h | File | 7.54 KB | 0644 |
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| mmc-mxcmmc.h | File | 1.07 KB | 0644 |
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| mmc-omap.h | File | 3.22 KB | 0644 |
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| mmc-pxamci.h | File | 809 B | 0644 |
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| mmc-sdhci-s3c.h | File | 2.22 KB | 0644 |
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| mmp_audio.h | File | 340 B | 0644 |
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| mmp_dma.h | File | 350 B | 0644 |
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| mouse-pxa930_trkball.h | File | 226 B | 0644 |
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| mtd-davinci.h | File | 2.39 KB | 0644 |
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| mtd-nand-omap2.h | File | 2 KB | 0644 |
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| mtd-nand-pxa3xx.h | File | 812 B | 0644 |
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| mtd-orion_nand.h | File | 520 B | 0644 |
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| mv88e6xxx.h | File | 416 B | 0644 |
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| mv_usb.h | File | 900 B | 0644 |
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| nfcmrvl.h | File | 1.23 KB | 0644 |
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| ntc_thermistor.h | File | 1.26 KB | 0644 |
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| omap-twl4030.h | File | 1.04 KB | 0644 |
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| omap-wd-timer.h | File | 901 B | 0644 |
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| omapdss.h | File | 897 B | 0644 |
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| pata_ixp4xx_cf.h | File | 466 B | 0644 |
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| pcmcia-pxa2xx_viper.h | File | 200 B | 0644 |
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| phy-da8xx-usb.h | File | 474 B | 0644 |
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| pinctrl-single.h | File | 425 B | 0644 |
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| pm33xx.h | File | 2.25 KB | 0644 |
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| pxa2xx_udc.h | File | 983 B | 0644 |
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| pxa_sdhci.h | File | 1.45 KB | 0644 |
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| regulator-haptic.h | File | 691 B | 0644 |
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| rtc-ds2404.h | File | 467 B | 0644 |
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| s3c-hsotg.h | File | 1.04 KB | 0644 |
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| s3c-hsudc.h | File | 1.04 KB | 0644 |
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| sa11x0-serial.h | File | 874 B | 0644 |
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| sc18is602.h | File | 401 B | 0644 |
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| sdhci-pic32.h | File | 360 B | 0644 |
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| serial-omap.h | File | 1 KB | 0644 |
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| serial-sccnxp.h | File | 1.89 KB | 0644 |
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| sgi-w1.h | File | 222 B | 0644 |
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| sh_mmcif.h | File | 5.42 KB | 0644 |
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| shmob_drm.h | File | 2.54 KB | 0644 |
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| sht3x.h | File | 342 B | 0644 |
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| shtc1.h | File | 303 B | 0644 |
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| si5351.h | File | 3.55 KB | 0644 |
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| simplefb.h | File | 2.21 KB | 0644 |
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| spi-clps711x.h | File | 421 B | 0644 |
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| spi-davinci.h | File | 2.25 KB | 0644 |
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| spi-ep93xx.h | File | 311 B | 0644 |
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| spi-mt65xx.h | File | 361 B | 0644 |
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| spi-omap2-mcspi.h | File | 475 B | 0644 |
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| spi-s3c64xx.h | File | 2.01 KB | 0644 |
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| st33zp24.h | File | 367 B | 0644 |
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| st_sensors_pdata.h | File | 966 B | 0644 |
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| syscon.h | File | 163 B | 0644 |
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| ti-sysc.h | File | 4.9 KB | 0644 |
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| usb-s3c2410_udc.h | File | 1.04 KB | 0644 |
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| video-pxafb.h | File | 5.23 KB | 0644 |
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| video_s3c.h | File | 1.71 KB | 0644 |
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| voltage-omap.h | File | 1.15 KB | 0644 |
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| wan_ixp4xx_hss.h | File | 465 B | 0644 |
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| wilco-ec.h | File | 6.91 KB | 0644 |
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| wiznet.h | File | 511 B | 0644 |
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| xilinx-ll-temac.h | File | 1.29 KB | 0644 |
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