#include <linux/extcon-provider.h>
#include <linux/kernel.h>
-#include <linux/mfd/cros_ec.h>
#include <linux/module.h>
#include <linux/notifier.h>
#include <linux/of.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/acpi.h>
#include <linux/hid.h>
#include <linux/leds.h>
-#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/pm_wakeup.h>
#include <asm/unaligned.h>
#include <linux/module.h>
#include <linux/i2c.h>
-#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/iio/triggered_buffer.h>
#include <linux/kernel.h>
#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#define DRV_NAME "cros-ec-accel-legacy"
#include <linux/iio/triggered_buffer.h>
#include <linux/iio/trigger_consumer.h>
#include <linux/kernel.h>
-#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
+#include <linux/platform_data/cros_ec_commands.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/iio/triggered_buffer.h>
#include <linux/kernel.h>
#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/iio/trigger_consumer.h>
#include <linux/kernel.h>
#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
static char *cros_ec_loc[] = {
#include <linux/iio/trigger_consumer.h>
#include <linux/kernel.h>
#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/iio/trigger_consumer.h>
#include <linux/kernel.h>
#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
/*
#include <linux/slab.h>
#include <linux/sysrq.h>
#include <linux/input/matrix_keypad.h>
-#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <asm/unaligned.h>
#include <linux/cec.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
+#include <linux/mfd/cros_ec.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <media/cec.h>
#include <media/cec-notifier.h>
-#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#define DRV_NAME "cros-ec-cec"
#include <linux/mfd/core.h>
#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/platform_data/cros_ec_chardev.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/slab.h>
#define DRV_NAME "cros-ec-dev"
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/module.h>
-#include <linux/mfd/cros_ec.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/suspend.h>
#include <asm/unaligned.h>
#include <linux/device.h>
#include <linux/fs.h>
#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/miscdevice.h>
#include <linux/module.h>
#include <linux/platform_data/cros_ec_chardev.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/fs.h>
#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
#include <linux/mutex.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/poll.h>
#include <linux/sched.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
-#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
// (ISH-TP).
#include <linux/delay.h>
-#include <linux/mfd/core.h>
-#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
#include <linux/pci.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/intel-ish-client-if.h>
/*
#include <linux/fs.h>
#include <linux/kobject.h>
#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/sched.h>
#include <linux/types.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/interrupt.h>
-#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/printk.h>
#include <linux/suspend.h>
//
// Copyright (C) 2015 Google, Inc
-#include <linux/mfd/cros_ec.h>
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/module.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/slab.h>
#include <asm/unaligned.h>
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/of.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/rpmsg.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/of.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/spi/spi.h>
#include <linux/fs.h>
#include <linux/kobject.h>
#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/printk.h>
#include <linux/slab.h>
#define TRACE_SYMBOL(a) {a, #a}
// Generate the list using the following script:
-// sed -n 's/^#define \(EC_CMD_[[:alnum:]_]*\)\s.*/\tTRACE_SYMBOL(\1), \\/p' include/linux/mfd/cros_ec_commands.h
+// sed -n 's/^#define \(EC_CMD_[[:alnum:]_]*\)\s.*/\tTRACE_SYMBOL(\1), \\/p' include/linux/platform_data/cros_ec_commands.h
#define EC_CMDS \
TRACE_SYMBOL(EC_CMD_PROTO_VERSION), \
TRACE_SYMBOL(EC_CMD_HELLO), \
#if !defined(_CROS_EC_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
#define _CROS_EC_TRACE_H_
+#include <linux/bits.h>
#include <linux/types.h>
-#include <linux/mfd/cros_ec.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/tracepoint.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/slab.h>
#define DRV_NAME "cros-ec-vbc"
*/
#include <linux/ktime.h>
-#include <linux/math64.h>
#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
+#include <linux/math64.h>
#include <linux/module.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/rtc.h>
* Copyright (c) 2014 - 2018 Google, Inc
*/
-#include <linux/module.h>
#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
+#include <linux/module.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/module.h>
-#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/pwm.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <linux/rtc.h>
#include <linux/slab.h>
header-test- += linux/mfd/arizona/pdata.h
header-test- += linux/mfd/as3711.h
header-test- += linux/mfd/as3722.h
-header-test- += linux/mfd/cros_ec_commands.h
header-test- += linux/mfd/da903x.h
header-test- += linux/mfd/da9055/pdata.h
header-test- += linux/mfd/da9063/pdata.h
header-test- += linux/platform_data/atmel.h
header-test- += linux/platform_data/bh1770glc.h
header-test- += linux/platform_data/brcmfmac.h
+header-test- += linux/platform_data/cros_ec_commands.h
header-test- += linux/platform_data/clk-u300.h
header-test- += linux/platform_data/cyttsp4.h
header-test- += linux/platform_data/dma-coh901318.h
#include <linux/iio/iio.h>
#include <linux/irqreturn.h>
-#include <linux/mfd/cros_ec.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
enum {
CROS_EC_SENSOR_X,
#ifndef __LINUX_MFD_CROS_EC_H
#define __LINUX_MFD_CROS_EC_H
-#include <linux/cdev.h>
#include <linux/device.h>
-#include <linux/notifier.h>
-#include <linux/mfd/cros_ec_commands.h>
-#include <linux/mutex.h>
-
-#define CROS_EC_DEV_NAME "cros_ec"
-#define CROS_EC_DEV_FP_NAME "cros_fp"
-#define CROS_EC_DEV_PD_NAME "cros_pd"
-#define CROS_EC_DEV_TP_NAME "cros_tp"
-#define CROS_EC_DEV_ISH_NAME "cros_ish"
-#define CROS_EC_DEV_SCP_NAME "cros_scp"
-
-/*
- * The EC is unresponsive for a time after a reboot command. Add a
- * simple delay to make sure that the bus stays locked.
- */
-#define EC_REBOOT_DELAY_MS 50
-
-/*
- * Max bus-specific overhead incurred by request/responses.
- * I2C requires 1 additional byte for requests.
- * I2C requires 2 additional bytes for responses.
- * SPI requires up to 32 additional bytes for responses.
- */
-#define EC_PROTO_VERSION_UNKNOWN 0
-#define EC_MAX_REQUEST_OVERHEAD 1
-#define EC_MAX_RESPONSE_OVERHEAD 32
-
-/*
- * Command interface between EC and AP, for LPC, I2C and SPI interfaces.
- */
-enum {
- EC_MSG_TX_HEADER_BYTES = 3,
- EC_MSG_TX_TRAILER_BYTES = 1,
- EC_MSG_TX_PROTO_BYTES = EC_MSG_TX_HEADER_BYTES +
- EC_MSG_TX_TRAILER_BYTES,
- EC_MSG_RX_PROTO_BYTES = 3,
-
- /* Max length of messages for proto 2*/
- EC_PROTO2_MSG_BYTES = EC_PROTO2_MAX_PARAM_SIZE +
- EC_MSG_TX_PROTO_BYTES,
-
- EC_MAX_MSG_BYTES = 64 * 1024,
-};
-
-/**
- * struct cros_ec_command - Information about a ChromeOS EC command.
- * @version: Command version number (often 0).
- * @command: Command to send (EC_CMD_...).
- * @outsize: Outgoing length in bytes.
- * @insize: Max number of bytes to accept from the EC.
- * @result: EC's response to the command (separate from communication failure).
- * @data: Where to put the incoming data from EC and outgoing data to EC.
- */
-struct cros_ec_command {
- uint32_t version;
- uint32_t command;
- uint32_t outsize;
- uint32_t insize;
- uint32_t result;
- uint8_t data[0];
-};
-
-/**
- * struct cros_ec_device - Information about a ChromeOS EC device.
- * @phys_name: Name of physical comms layer (e.g. 'i2c-4').
- * @dev: Device pointer for physical comms device
- * @was_wake_device: True if this device was set to wake the system from
- * sleep at the last suspend.
- * @cros_class: The class structure for this device.
- * @cmd_readmem: Direct read of the EC memory-mapped region, if supported.
- * @offset: Is within EC_LPC_ADDR_MEMMAP region.
- * @bytes: Number of bytes to read. zero means "read a string" (including
- * the trailing '\0'). At most only EC_MEMMAP_SIZE bytes can be
- * read. Caller must ensure that the buffer is large enough for the
- * result when reading a string.
- * @max_request: Max size of message requested.
- * @max_response: Max size of message response.
- * @max_passthru: Max sice of passthru message.
- * @proto_version: The protocol version used for this device.
- * @priv: Private data.
- * @irq: Interrupt to use.
- * @id: Device id.
- * @din: Input buffer (for data from EC). This buffer will always be
- * dword-aligned and include enough space for up to 7 word-alignment
- * bytes also, so we can ensure that the body of the message is always
- * dword-aligned (64-bit). We use this alignment to keep ARM and x86
- * happy. Probably word alignment would be OK, there might be a small
- * performance advantage to using dword.
- * @dout: Output buffer (for data to EC). This buffer will always be
- * dword-aligned and include enough space for up to 7 word-alignment
- * bytes also, so we can ensure that the body of the message is always
- * dword-aligned (64-bit). We use this alignment to keep ARM and x86
- * happy. Probably word alignment would be OK, there might be a small
- * performance advantage to using dword.
- * @din_size: Size of din buffer to allocate (zero to use static din).
- * @dout_size: Size of dout buffer to allocate (zero to use static dout).
- * @wake_enabled: True if this device can wake the system from sleep.
- * @suspended: True if this device had been suspended.
- * @cmd_xfer: Send command to EC and get response.
- * Returns the number of bytes received if the communication
- * succeeded, but that doesn't mean the EC was happy with the
- * command. The caller should check msg.result for the EC's result
- * code.
- * @pkt_xfer: Send packet to EC and get response.
- * @lock: One transaction at a time.
- * @mkbp_event_supported: True if this EC supports the MKBP event protocol.
- * @host_sleep_v1: True if this EC supports the sleep v1 command.
- * @event_notifier: Interrupt event notifier for transport devices.
- * @event_data: Raw payload transferred with the MKBP event.
- * @event_size: Size in bytes of the event data.
- * @host_event_wake_mask: Mask of host events that cause wake from suspend.
- * @ec: The platform_device used by the mfd driver to interface with the
- * main EC.
- * @pd: The platform_device used by the mfd driver to interface with the
- * PD behind an EC.
- */
-struct cros_ec_device {
- /* These are used by other drivers that want to talk to the EC */
- const char *phys_name;
- struct device *dev;
- bool was_wake_device;
- struct class *cros_class;
- int (*cmd_readmem)(struct cros_ec_device *ec, unsigned int offset,
- unsigned int bytes, void *dest);
-
- /* These are used to implement the platform-specific interface */
- u16 max_request;
- u16 max_response;
- u16 max_passthru;
- u16 proto_version;
- void *priv;
- int irq;
- u8 *din;
- u8 *dout;
- int din_size;
- int dout_size;
- bool wake_enabled;
- bool suspended;
- int (*cmd_xfer)(struct cros_ec_device *ec,
- struct cros_ec_command *msg);
- int (*pkt_xfer)(struct cros_ec_device *ec,
- struct cros_ec_command *msg);
- struct mutex lock;
- bool mkbp_event_supported;
- bool host_sleep_v1;
- struct blocking_notifier_head event_notifier;
-
- struct ec_response_get_next_event_v1 event_data;
- int event_size;
- u32 host_event_wake_mask;
- u32 last_resume_result;
-
- /* The platform devices used by the mfd driver */
- struct platform_device *ec;
- struct platform_device *pd;
-};
-
-/**
- * struct cros_ec_sensor_platform - ChromeOS EC sensor platform information.
- * @sensor_num: Id of the sensor, as reported by the EC.
- */
-struct cros_ec_sensor_platform {
- u8 sensor_num;
-};
-
-/**
- * struct cros_ec_platform - ChromeOS EC platform information.
- * @ec_name: Name of EC device (e.g. 'cros-ec', 'cros-pd', ...)
- * used in /dev/ and sysfs.
- * @cmd_offset: Offset to apply for each command. Set when
- * registering a device behind another one.
- */
-struct cros_ec_platform {
- const char *ec_name;
- u16 cmd_offset;
-};
-
-struct cros_ec_debugfs;
/**
* struct cros_ec_dev - ChromeOS EC device entry point.
#define to_cros_ec_dev(dev) container_of(dev, struct cros_ec_dev, class_dev)
-/**
- * cros_ec_suspend() - Handle a suspend operation for the ChromeOS EC device.
- * @ec_dev: Device to suspend.
- *
- * This can be called by drivers to handle a suspend event.
- *
- * Return: 0 on success or negative error code.
- */
-int cros_ec_suspend(struct cros_ec_device *ec_dev);
-
-/**
- * cros_ec_resume() - Handle a resume operation for the ChromeOS EC device.
- * @ec_dev: Device to resume.
- *
- * This can be called by drivers to handle a resume event.
- *
- * Return: 0 on success or negative error code.
- */
-int cros_ec_resume(struct cros_ec_device *ec_dev);
-
-/**
- * cros_ec_prepare_tx() - Prepare an outgoing message in the output buffer.
- * @ec_dev: Device to register.
- * @msg: Message to write.
- *
- * This is intended to be used by all ChromeOS EC drivers, but at present
- * only SPI uses it. Once LPC uses the same protocol it can start using it.
- * I2C could use it now, with a refactor of the existing code.
- *
- * Return: 0 on success or negative error code.
- */
-int cros_ec_prepare_tx(struct cros_ec_device *ec_dev,
- struct cros_ec_command *msg);
-
-/**
- * cros_ec_check_result() - Check ec_msg->result.
- * @ec_dev: EC device.
- * @msg: Message to check.
- *
- * This is used by ChromeOS EC drivers to check the ec_msg->result for
- * errors and to warn about them.
- *
- * Return: 0 on success or negative error code.
- */
-int cros_ec_check_result(struct cros_ec_device *ec_dev,
- struct cros_ec_command *msg);
-
-/**
- * cros_ec_cmd_xfer() - Send a command to the ChromeOS EC.
- * @ec_dev: EC device.
- * @msg: Message to write.
- *
- * Call this to send a command to the ChromeOS EC. This should be used
- * instead of calling the EC's cmd_xfer() callback directly.
- *
- * Return: 0 on success or negative error code.
- */
-int cros_ec_cmd_xfer(struct cros_ec_device *ec_dev,
- struct cros_ec_command *msg);
-
-/**
- * cros_ec_cmd_xfer_status() - Send a command to the ChromeOS EC.
- * @ec_dev: EC device.
- * @msg: Message to write.
- *
- * This function is identical to cros_ec_cmd_xfer, except it returns success
- * status only if both the command was transmitted successfully and the EC
- * replied with success status. It's not necessary to check msg->result when
- * using this function.
- *
- * Return: The number of bytes transferred on success or negative error code.
- */
-int cros_ec_cmd_xfer_status(struct cros_ec_device *ec_dev,
- struct cros_ec_command *msg);
-
-/**
- * cros_ec_register() - Register a new ChromeOS EC, using the provided info.
- * @ec_dev: Device to register.
- *
- * Before calling this, allocate a pointer to a new device and then fill
- * in all the fields up to the --private-- marker.
- *
- * Return: 0 on success or negative error code.
- */
-int cros_ec_register(struct cros_ec_device *ec_dev);
-
-/**
- * cros_ec_unregister() - Remove a ChromeOS EC.
- * @ec_dev: Device to unregister.
- *
- * Call this to deregister a ChromeOS EC, then clean up any private data.
- *
- * Return: 0 on success or negative error code.
- */
-int cros_ec_unregister(struct cros_ec_device *ec_dev);
-
-/**
- * cros_ec_query_all() - Query the protocol version supported by the
- * ChromeOS EC.
- * @ec_dev: Device to register.
- *
- * Return: 0 on success or negative error code.
- */
-int cros_ec_query_all(struct cros_ec_device *ec_dev);
-
-/**
- * cros_ec_get_next_event() - Fetch next event from the ChromeOS EC.
- * @ec_dev: Device to fetch event from.
- * @wake_event: Pointer to a bool set to true upon return if the event might be
- * treated as a wake event. Ignored if null.
- *
- * Return: negative error code on errors; 0 for no data; or else number of
- * bytes received (i.e., an event was retrieved successfully). Event types are
- * written out to @ec_dev->event_data.event_type on success.
- */
-int cros_ec_get_next_event(struct cros_ec_device *ec_dev, bool *wake_event);
-
-/**
- * cros_ec_get_host_event() - Return a mask of event set by the ChromeOS EC.
- * @ec_dev: Device to fetch event from.
- *
- * When MKBP is supported, when the EC raises an interrupt, we collect the
- * events raised and call the functions in the ec notifier. This function
- * is a helper to know which events are raised.
- *
- * Return: 0 on error or non-zero bitmask of one or more EC_HOST_EVENT_*.
- */
-u32 cros_ec_get_host_event(struct cros_ec_device *ec_dev);
-
#endif /* __LINUX_MFD_CROS_EC_H */
#include <linux/ioctl.h>
#include <linux/types.h>
-#include <linux/mfd/cros_ec.h>
+#include <linux/platform_data/cros_ec_commands.h>
#define CROS_EC_DEV_VERSION "1.0.0"
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * ChromeOS Embedded Controller protocol interface.
+ *
+ * Copyright (C) 2012 Google, Inc
+ */
+
+#ifndef __LINUX_CROS_EC_PROTO_H
+#define __LINUX_CROS_EC_PROTO_H
+
+#include <linux/device.h>
+#include <linux/mutex.h>
+#include <linux/notifier.h>
+
+#include <linux/platform_data/cros_ec_commands.h>
+
+#define CROS_EC_DEV_NAME "cros_ec"
+#define CROS_EC_DEV_FP_NAME "cros_fp"
+#define CROS_EC_DEV_ISH_NAME "cros_ish"
+#define CROS_EC_DEV_PD_NAME "cros_pd"
+#define CROS_EC_DEV_SCP_NAME "cros_scp"
+#define CROS_EC_DEV_TP_NAME "cros_tp"
+
+/*
+ * The EC is unresponsive for a time after a reboot command. Add a
+ * simple delay to make sure that the bus stays locked.
+ */
+#define EC_REBOOT_DELAY_MS 50
+
+/*
+ * Max bus-specific overhead incurred by request/responses.
+ * I2C requires 1 additional byte for requests.
+ * I2C requires 2 additional bytes for responses.
+ * SPI requires up to 32 additional bytes for responses.
+ */
+#define EC_PROTO_VERSION_UNKNOWN 0
+#define EC_MAX_REQUEST_OVERHEAD 1
+#define EC_MAX_RESPONSE_OVERHEAD 32
+
+/*
+ * Command interface between EC and AP, for LPC, I2C and SPI interfaces.
+ */
+enum {
+ EC_MSG_TX_HEADER_BYTES = 3,
+ EC_MSG_TX_TRAILER_BYTES = 1,
+ EC_MSG_TX_PROTO_BYTES = EC_MSG_TX_HEADER_BYTES +
+ EC_MSG_TX_TRAILER_BYTES,
+ EC_MSG_RX_PROTO_BYTES = 3,
+
+ /* Max length of messages for proto 2*/
+ EC_PROTO2_MSG_BYTES = EC_PROTO2_MAX_PARAM_SIZE +
+ EC_MSG_TX_PROTO_BYTES,
+
+ EC_MAX_MSG_BYTES = 64 * 1024,
+};
+
+/**
+ * struct cros_ec_command - Information about a ChromeOS EC command.
+ * @version: Command version number (often 0).
+ * @command: Command to send (EC_CMD_...).
+ * @outsize: Outgoing length in bytes.
+ * @insize: Max number of bytes to accept from the EC.
+ * @result: EC's response to the command (separate from communication failure).
+ * @data: Where to put the incoming data from EC and outgoing data to EC.
+ */
+struct cros_ec_command {
+ uint32_t version;
+ uint32_t command;
+ uint32_t outsize;
+ uint32_t insize;
+ uint32_t result;
+ uint8_t data[0];
+};
+
+/**
+ * struct cros_ec_device - Information about a ChromeOS EC device.
+ * @phys_name: Name of physical comms layer (e.g. 'i2c-4').
+ * @dev: Device pointer for physical comms device
+ * @was_wake_device: True if this device was set to wake the system from
+ * sleep at the last suspend.
+ * @cros_class: The class structure for this device.
+ * @cmd_readmem: Direct read of the EC memory-mapped region, if supported.
+ * @offset: Is within EC_LPC_ADDR_MEMMAP region.
+ * @bytes: Number of bytes to read. zero means "read a string" (including
+ * the trailing '\0'). At most only EC_MEMMAP_SIZE bytes can be
+ * read. Caller must ensure that the buffer is large enough for the
+ * result when reading a string.
+ * @max_request: Max size of message requested.
+ * @max_response: Max size of message response.
+ * @max_passthru: Max sice of passthru message.
+ * @proto_version: The protocol version used for this device.
+ * @priv: Private data.
+ * @irq: Interrupt to use.
+ * @id: Device id.
+ * @din: Input buffer (for data from EC). This buffer will always be
+ * dword-aligned and include enough space for up to 7 word-alignment
+ * bytes also, so we can ensure that the body of the message is always
+ * dword-aligned (64-bit). We use this alignment to keep ARM and x86
+ * happy. Probably word alignment would be OK, there might be a small
+ * performance advantage to using dword.
+ * @dout: Output buffer (for data to EC). This buffer will always be
+ * dword-aligned and include enough space for up to 7 word-alignment
+ * bytes also, so we can ensure that the body of the message is always
+ * dword-aligned (64-bit). We use this alignment to keep ARM and x86
+ * happy. Probably word alignment would be OK, there might be a small
+ * performance advantage to using dword.
+ * @din_size: Size of din buffer to allocate (zero to use static din).
+ * @dout_size: Size of dout buffer to allocate (zero to use static dout).
+ * @wake_enabled: True if this device can wake the system from sleep.
+ * @suspended: True if this device had been suspended.
+ * @cmd_xfer: Send command to EC and get response.
+ * Returns the number of bytes received if the communication
+ * succeeded, but that doesn't mean the EC was happy with the
+ * command. The caller should check msg.result for the EC's result
+ * code.
+ * @pkt_xfer: Send packet to EC and get response.
+ * @lock: One transaction at a time.
+ * @mkbp_event_supported: True if this EC supports the MKBP event protocol.
+ * @host_sleep_v1: True if this EC supports the sleep v1 command.
+ * @event_notifier: Interrupt event notifier for transport devices.
+ * @event_data: Raw payload transferred with the MKBP event.
+ * @event_size: Size in bytes of the event data.
+ * @host_event_wake_mask: Mask of host events that cause wake from suspend.
+ * @ec: The platform_device used by the mfd driver to interface with the
+ * main EC.
+ * @pd: The platform_device used by the mfd driver to interface with the
+ * PD behind an EC.
+ */
+struct cros_ec_device {
+ /* These are used by other drivers that want to talk to the EC */
+ const char *phys_name;
+ struct device *dev;
+ bool was_wake_device;
+ struct class *cros_class;
+ int (*cmd_readmem)(struct cros_ec_device *ec, unsigned int offset,
+ unsigned int bytes, void *dest);
+
+ /* These are used to implement the platform-specific interface */
+ u16 max_request;
+ u16 max_response;
+ u16 max_passthru;
+ u16 proto_version;
+ void *priv;
+ int irq;
+ u8 *din;
+ u8 *dout;
+ int din_size;
+ int dout_size;
+ bool wake_enabled;
+ bool suspended;
+ int (*cmd_xfer)(struct cros_ec_device *ec,
+ struct cros_ec_command *msg);
+ int (*pkt_xfer)(struct cros_ec_device *ec,
+ struct cros_ec_command *msg);
+ struct mutex lock;
+ bool mkbp_event_supported;
+ bool host_sleep_v1;
+ struct blocking_notifier_head event_notifier;
+
+ struct ec_response_get_next_event_v1 event_data;
+ int event_size;
+ u32 host_event_wake_mask;
+ u32 last_resume_result;
+
+ /* The platform devices used by the mfd driver */
+ struct platform_device *ec;
+ struct platform_device *pd;
+};
+
+/**
+ * struct cros_ec_sensor_platform - ChromeOS EC sensor platform information.
+ * @sensor_num: Id of the sensor, as reported by the EC.
+ */
+struct cros_ec_sensor_platform {
+ u8 sensor_num;
+};
+
+/**
+ * struct cros_ec_platform - ChromeOS EC platform information.
+ * @ec_name: Name of EC device (e.g. 'cros-ec', 'cros-pd', ...)
+ * used in /dev/ and sysfs.
+ * @cmd_offset: Offset to apply for each command. Set when
+ * registering a device behind another one.
+ */
+struct cros_ec_platform {
+ const char *ec_name;
+ u16 cmd_offset;
+};
+
+/**
+ * cros_ec_suspend() - Handle a suspend operation for the ChromeOS EC device.
+ * @ec_dev: Device to suspend.
+ *
+ * This can be called by drivers to handle a suspend event.
+ *
+ * Return: 0 on success or negative error code.
+ */
+int cros_ec_suspend(struct cros_ec_device *ec_dev);
+
+/**
+ * cros_ec_resume() - Handle a resume operation for the ChromeOS EC device.
+ * @ec_dev: Device to resume.
+ *
+ * This can be called by drivers to handle a resume event.
+ *
+ * Return: 0 on success or negative error code.
+ */
+int cros_ec_resume(struct cros_ec_device *ec_dev);
+
+/**
+ * cros_ec_prepare_tx() - Prepare an outgoing message in the output buffer.
+ * @ec_dev: Device to register.
+ * @msg: Message to write.
+ *
+ * This is intended to be used by all ChromeOS EC drivers, but at present
+ * only SPI uses it. Once LPC uses the same protocol it can start using it.
+ * I2C could use it now, with a refactor of the existing code.
+ *
+ * Return: 0 on success or negative error code.
+ */
+int cros_ec_prepare_tx(struct cros_ec_device *ec_dev,
+ struct cros_ec_command *msg);
+
+/**
+ * cros_ec_check_result() - Check ec_msg->result.
+ * @ec_dev: EC device.
+ * @msg: Message to check.
+ *
+ * This is used by ChromeOS EC drivers to check the ec_msg->result for
+ * errors and to warn about them.
+ *
+ * Return: 0 on success or negative error code.
+ */
+int cros_ec_check_result(struct cros_ec_device *ec_dev,
+ struct cros_ec_command *msg);
+
+/**
+ * cros_ec_cmd_xfer() - Send a command to the ChromeOS EC.
+ * @ec_dev: EC device.
+ * @msg: Message to write.
+ *
+ * Call this to send a command to the ChromeOS EC. This should be used
+ * instead of calling the EC's cmd_xfer() callback directly.
+ *
+ * Return: 0 on success or negative error code.
+ */
+int cros_ec_cmd_xfer(struct cros_ec_device *ec_dev,
+ struct cros_ec_command *msg);
+
+/**
+ * cros_ec_cmd_xfer_status() - Send a command to the ChromeOS EC.
+ * @ec_dev: EC device.
+ * @msg: Message to write.
+ *
+ * This function is identical to cros_ec_cmd_xfer, except it returns success
+ * status only if both the command was transmitted successfully and the EC
+ * replied with success status. It's not necessary to check msg->result when
+ * using this function.
+ *
+ * Return: The number of bytes transferred on success or negative error code.
+ */
+int cros_ec_cmd_xfer_status(struct cros_ec_device *ec_dev,
+ struct cros_ec_command *msg);
+
+/**
+ * cros_ec_register() - Register a new ChromeOS EC, using the provided info.
+ * @ec_dev: Device to register.
+ *
+ * Before calling this, allocate a pointer to a new device and then fill
+ * in all the fields up to the --private-- marker.
+ *
+ * Return: 0 on success or negative error code.
+ */
+int cros_ec_register(struct cros_ec_device *ec_dev);
+
+/**
+ * cros_ec_unregister() - Remove a ChromeOS EC.
+ * @ec_dev: Device to unregister.
+ *
+ * Call this to deregister a ChromeOS EC, then clean up any private data.
+ *
+ * Return: 0 on success or negative error code.
+ */
+int cros_ec_unregister(struct cros_ec_device *ec_dev);
+
+/**
+ * cros_ec_query_all() - Query the protocol version supported by the
+ * ChromeOS EC.
+ * @ec_dev: Device to register.
+ *
+ * Return: 0 on success or negative error code.
+ */
+int cros_ec_query_all(struct cros_ec_device *ec_dev);
+
+/**
+ * cros_ec_get_next_event() - Fetch next event from the ChromeOS EC.
+ * @ec_dev: Device to fetch event from.
+ * @wake_event: Pointer to a bool set to true upon return if the event might be
+ * treated as a wake event. Ignored if null.
+ *
+ * Return: negative error code on errors; 0 for no data; or else number of
+ * bytes received (i.e., an event was retrieved successfully). Event types are
+ * written out to @ec_dev->event_data.event_type on success.
+ */
+int cros_ec_get_next_event(struct cros_ec_device *ec_dev, bool *wake_event);
+
+/**
+ * cros_ec_get_host_event() - Return a mask of event set by the ChromeOS EC.
+ * @ec_dev: Device to fetch event from.
+ *
+ * When MKBP is supported, when the EC raises an interrupt, we collect the
+ * events raised and call the functions in the ec notifier. This function
+ * is a helper to know which events are raised.
+ *
+ * Return: 0 on error or non-zero bitmask of one or more EC_HOST_EVENT_*.
+ */
+u32 cros_ec_get_host_event(struct cros_ec_device *ec_dev);
+
+#endif /* __LINUX_CROS_EC_PROTO_H */
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/kernel.h>
-#include <linux/mfd/cros_ec.h>
-#include <linux/mfd/cros_ec_commands.h>
#include <linux/module.h>
+#include <linux/platform_data/cros_ec_commands.h>
+#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
projects / platform / kernel / linux-starfive.git / commitdiff