b12bbdc5dd
Currently, in suspend() and resume(), ishtp client drivers are using driver_data to get "struct ishtp_cl_device" object which is set by bus driver. It's wrong since the driver_data should not be owned bus. driver_data should be owned by the corresponding ishtp client driver. Due to this, some ishtp client driver like cros_ec_ishtp which uses its driver_data to transfer its data to its child doesn't work correctly. So this patch removes setting driver_data in bus drier and instead of using driver_data to get "struct ishtp_cl_device", since "struct device" is embedded in "struct ishtp_cl_device", we introduce a helper function that returns "struct ishtp_cl_device" from "struct device". Signed-off-by: Hyungwoo Yang <hyungwoo.yang@intel.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
114 lines
3.7 KiB
C
114 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Intel ISH client Interface definitions
|
|
*
|
|
* Copyright (c) 2019, Intel Corporation.
|
|
*/
|
|
|
|
#ifndef _INTEL_ISH_CLIENT_IF_H_
|
|
#define _INTEL_ISH_CLIENT_IF_H_
|
|
|
|
struct ishtp_cl_device;
|
|
struct ishtp_device;
|
|
struct ishtp_cl;
|
|
struct ishtp_fw_client;
|
|
|
|
/* Client state */
|
|
enum cl_state {
|
|
ISHTP_CL_INITIALIZING = 0,
|
|
ISHTP_CL_CONNECTING,
|
|
ISHTP_CL_CONNECTED,
|
|
ISHTP_CL_DISCONNECTING,
|
|
ISHTP_CL_DISCONNECTED
|
|
};
|
|
|
|
/**
|
|
* struct ishtp_cl_device - ISHTP device handle
|
|
* @driver: driver instance on a bus
|
|
* @name: Name of the device for probe
|
|
* @probe: driver callback for device probe
|
|
* @remove: driver callback on device removal
|
|
*
|
|
* Client drivers defines to get probed/removed for ISHTP client device.
|
|
*/
|
|
struct ishtp_cl_driver {
|
|
struct device_driver driver;
|
|
const char *name;
|
|
const guid_t *guid;
|
|
int (*probe)(struct ishtp_cl_device *dev);
|
|
int (*remove)(struct ishtp_cl_device *dev);
|
|
int (*reset)(struct ishtp_cl_device *dev);
|
|
const struct dev_pm_ops *pm;
|
|
};
|
|
|
|
/**
|
|
* struct ishtp_msg_data - ISHTP message data struct
|
|
* @size: Size of data in the *data
|
|
* @data: Pointer to data
|
|
*/
|
|
struct ishtp_msg_data {
|
|
uint32_t size;
|
|
unsigned char *data;
|
|
};
|
|
|
|
/*
|
|
* struct ishtp_cl_rb - request block structure
|
|
* @list: Link to list members
|
|
* @cl: ISHTP client instance
|
|
* @buffer: message header
|
|
* @buf_idx: Index into buffer
|
|
* @read_time: unused at this time
|
|
*/
|
|
struct ishtp_cl_rb {
|
|
struct list_head list;
|
|
struct ishtp_cl *cl;
|
|
struct ishtp_msg_data buffer;
|
|
unsigned long buf_idx;
|
|
unsigned long read_time;
|
|
};
|
|
|
|
int ishtp_cl_driver_register(struct ishtp_cl_driver *driver,
|
|
struct module *owner);
|
|
void ishtp_cl_driver_unregister(struct ishtp_cl_driver *driver);
|
|
int ishtp_register_event_cb(struct ishtp_cl_device *device,
|
|
void (*read_cb)(struct ishtp_cl_device *));
|
|
|
|
/* Get the device * from ishtp device instance */
|
|
struct device *ishtp_device(struct ishtp_cl_device *cl_device);
|
|
/* Trace interface for clients */
|
|
void *ishtp_trace_callback(struct ishtp_cl_device *cl_device);
|
|
/* Get device pointer of PCI device for DMA acces */
|
|
struct device *ishtp_get_pci_device(struct ishtp_cl_device *cl_device);
|
|
|
|
struct ishtp_cl *ishtp_cl_allocate(struct ishtp_cl_device *cl_device);
|
|
void ishtp_cl_free(struct ishtp_cl *cl);
|
|
int ishtp_cl_link(struct ishtp_cl *cl);
|
|
void ishtp_cl_unlink(struct ishtp_cl *cl);
|
|
int ishtp_cl_disconnect(struct ishtp_cl *cl);
|
|
int ishtp_cl_connect(struct ishtp_cl *cl);
|
|
int ishtp_cl_send(struct ishtp_cl *cl, uint8_t *buf, size_t length);
|
|
int ishtp_cl_flush_queues(struct ishtp_cl *cl);
|
|
int ishtp_cl_io_rb_recycle(struct ishtp_cl_rb *rb);
|
|
bool ishtp_cl_tx_empty(struct ishtp_cl *cl);
|
|
struct ishtp_cl_rb *ishtp_cl_rx_get_rb(struct ishtp_cl *cl);
|
|
void *ishtp_get_client_data(struct ishtp_cl *cl);
|
|
void ishtp_set_client_data(struct ishtp_cl *cl, void *data);
|
|
struct ishtp_device *ishtp_get_ishtp_device(struct ishtp_cl *cl);
|
|
void ishtp_set_tx_ring_size(struct ishtp_cl *cl, int size);
|
|
void ishtp_set_rx_ring_size(struct ishtp_cl *cl, int size);
|
|
void ishtp_set_connection_state(struct ishtp_cl *cl, int state);
|
|
void ishtp_cl_set_fw_client_id(struct ishtp_cl *cl, int fw_client_id);
|
|
|
|
void ishtp_put_device(struct ishtp_cl_device *cl_dev);
|
|
void ishtp_get_device(struct ishtp_cl_device *cl_dev);
|
|
void ishtp_set_drvdata(struct ishtp_cl_device *cl_device, void *data);
|
|
void *ishtp_get_drvdata(struct ishtp_cl_device *cl_device);
|
|
struct ishtp_cl_device *ishtp_dev_to_cl_device(struct device *dev);
|
|
int ishtp_register_event_cb(struct ishtp_cl_device *device,
|
|
void (*read_cb)(struct ishtp_cl_device *));
|
|
struct ishtp_fw_client *ishtp_fw_cl_get_client(struct ishtp_device *dev,
|
|
const guid_t *uuid);
|
|
int ishtp_get_fw_client_id(struct ishtp_fw_client *fw_client);
|
|
int ish_hw_reset(struct ishtp_device *dev);
|
|
#endif /* _INTEL_ISH_CLIENT_IF_H_ */
|