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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _PSMOUSE_H
#define _PSMOUSE_H
#define PSMOUSE_OOB_NONE 0x00
#define PSMOUSE_OOB_EXTRA_BTNS 0x01
#define PSMOUSE_CMD_SETSCALE11 0x00e6
#define PSMOUSE_CMD_SETSCALE21 0x00e7
#define PSMOUSE_CMD_SETRES 0x10e8
#define PSMOUSE_CMD_GETINFO 0x03e9
#define PSMOUSE_CMD_SETSTREAM 0x00ea
#define PSMOUSE_CMD_SETPOLL 0x00f0
#define PSMOUSE_CMD_POLL 0x00eb /* caller sets number of bytes to receive */
#define PSMOUSE_CMD_RESET_WRAP 0x00ec
#define PSMOUSE_CMD_GETID 0x02f2
#define PSMOUSE_CMD_SETRATE 0x10f3
#define PSMOUSE_CMD_ENABLE 0x00f4
#define PSMOUSE_CMD_DISABLE 0x00f5
#define PSMOUSE_CMD_RESET_DIS 0x00f6
#define PSMOUSE_CMD_RESET_BAT 0x02ff
#define PSMOUSE_RET_BAT 0xaa
#define PSMOUSE_RET_ID 0x00
#define PSMOUSE_RET_ACK 0xfa
#define PSMOUSE_RET_NAK 0xfe
enum psmouse_state {
PSMOUSE_IGNORE,
PSMOUSE_INITIALIZING,
PSMOUSE_RESYNCING,
PSMOUSE_CMD_MODE,
PSMOUSE_ACTIVATED,
};
/* psmouse protocol handler return codes */
typedef enum {
PSMOUSE_BAD_DATA,
PSMOUSE_GOOD_DATA,
PSMOUSE_FULL_PACKET
} psmouse_ret_t;
enum psmouse_scale {
PSMOUSE_SCALE11,
PSMOUSE_SCALE21
};
enum psmouse_type {
PSMOUSE_NONE,
PSMOUSE_PS2,
PSMOUSE_PS2PP,
PSMOUSE_THINKPS,
PSMOUSE_GENPS,
PSMOUSE_IMPS,
PSMOUSE_IMEX,
PSMOUSE_SYNAPTICS,
PSMOUSE_ALPS,
PSMOUSE_LIFEBOOK,
PSMOUSE_TRACKPOINT,
PSMOUSE_TOUCHKIT_PS2,
PSMOUSE_CORTRON,
PSMOUSE_HGPK,
PSMOUSE_ELANTECH,
PSMOUSE_FSP,
PSMOUSE_SYNAPTICS_RELATIVE,
PSMOUSE_CYPRESS,
PSMOUSE_FOCALTECH,
PSMOUSE_VMMOUSE,
PSMOUSE_BYD,
PSMOUSE_SYNAPTICS_SMBUS,
PSMOUSE_ELANTECH_SMBUS,
PSMOUSE_AUTO /* This one should always be last */
};
struct psmouse;
struct psmouse_protocol {
enum psmouse_type type;
bool maxproto;
bool ignore_parity; /* Protocol should ignore parity errors from KBC */
bool try_passthru; /* Try protocol also on passthrough ports */
bool smbus_companion; /* "Protocol" is a stub, device is on SMBus */
const char *name;
const char *alias;
int (*detect)(struct psmouse *, bool);
int (*init)(struct psmouse *);
};
struct psmouse {
void *private;
struct input_dev *dev;
struct ps2dev ps2dev;
struct delayed_work resync_work;
const char *vendor;
const char *name;
const struct psmouse_protocol *protocol;
unsigned char packet[8];
unsigned char badbyte;
unsigned char pktcnt;
unsigned char pktsize;
unsigned char oob_data_type;
unsigned char extra_buttons;
bool acks_disable_command;
unsigned int model;
unsigned long last;
unsigned long out_of_sync_cnt;
unsigned long num_resyncs;
enum psmouse_state state;
char devname[64];
char phys[32];
unsigned int rate;
unsigned int resolution;
unsigned int resetafter;
unsigned int resync_time;
bool smartscroll; /* Logitech only */
psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse);
void (*set_rate)(struct psmouse *psmouse, unsigned int rate);
void (*set_resolution)(struct psmouse *psmouse, unsigned int resolution);
void (*set_scale)(struct psmouse *psmouse, enum psmouse_scale scale);
int (*reconnect)(struct psmouse *psmouse);
int (*fast_reconnect)(struct psmouse *psmouse);
void (*disconnect)(struct psmouse *psmouse);
void (*cleanup)(struct psmouse *psmouse);
int (*poll)(struct psmouse *psmouse);
void (*pt_activate)(struct psmouse *psmouse);
void (*pt_deactivate)(struct psmouse *psmouse);
};
void psmouse_queue_work(struct psmouse *psmouse, struct delayed_work *work,
unsigned long delay);
int psmouse_reset(struct psmouse *psmouse);
void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state);
void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution);
psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse);
int psmouse_activate(struct psmouse *psmouse);
int psmouse_deactivate(struct psmouse *psmouse);
bool psmouse_matches_pnp_id(struct psmouse *psmouse, const char * const ids[]);
void psmouse_report_standard_buttons(struct input_dev *, u8 buttons);
void psmouse_report_standard_motion(struct input_dev *, u8 *packet);
void psmouse_report_standard_packet(struct input_dev *, u8 *packet);
struct psmouse_attribute {
struct device_attribute dattr;
void *data;
ssize_t (*show)(struct psmouse *psmouse, void *data, char *buf);
ssize_t (*set)(struct psmouse *psmouse, void *data,
const char *buf, size_t count);
bool protect;
};
#define to_psmouse_attr(a) container_of((a), struct psmouse_attribute, dattr)
ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,
char *buf);
ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count);
#define __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect) \
static struct psmouse_attribute psmouse_attr_##_name = { \
.dattr = { \
.attr = { \
.name = __stringify(_name), \
.mode = _mode, \
}, \
.show = psmouse_attr_show_helper, \
.store = psmouse_attr_set_helper, \
}, \
.data = _data, \
.show = _show, \
.set = _set, \
.protect = _protect, \
}
#define __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, _protect) \
static ssize_t _show(struct psmouse *, void *, char *); \
static ssize_t _set(struct psmouse *, void *, const char *, size_t); \
__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect)
#define PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set) \
__PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, true)
#define PSMOUSE_DEFINE_RO_ATTR(_name, _mode, _data, _show) \
static ssize_t _show(struct psmouse *, void *, char *); \
__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, NULL, true)
#define PSMOUSE_DEFINE_WO_ATTR(_name, _mode, _data, _set) \
static ssize_t _set(struct psmouse *, void *, const char *, size_t); \
__PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, NULL, _set, true)
#ifndef psmouse_fmt
#define psmouse_fmt(fmt) KBUILD_BASENAME ": " fmt
#endif
#define psmouse_dbg(psmouse, format, ...) \
dev_dbg(&(psmouse)->ps2dev.serio->dev, \
psmouse_fmt(format), ##__VA_ARGS__)
#define psmouse_info(psmouse, format, ...) \
dev_info(&(psmouse)->ps2dev.serio->dev, \
psmouse_fmt(format), ##__VA_ARGS__)
#define psmouse_warn(psmouse, format, ...) \
dev_warn(&(psmouse)->ps2dev.serio->dev, \
psmouse_fmt(format), ##__VA_ARGS__)
#define psmouse_err(psmouse, format, ...) \
dev_err(&(psmouse)->ps2dev.serio->dev, \
psmouse_fmt(format), ##__VA_ARGS__)
#define psmouse_notice(psmouse, format, ...) \
dev_notice(&(psmouse)->ps2dev.serio->dev, \
psmouse_fmt(format), ##__VA_ARGS__)
#define psmouse_printk(level, psmouse, format, ...) \
dev_printk(level, \
&(psmouse)->ps2dev.serio->dev, \
psmouse_fmt(format), ##__VA_ARGS__)
#ifdef CONFIG_MOUSE_PS2_SMBUS
int psmouse_smbus_module_init(void);
void psmouse_smbus_module_exit(void);
struct i2c_board_info;
int psmouse_smbus_init(struct psmouse *psmouse,
const struct i2c_board_info *board,
const void *pdata, size_t pdata_size,
bool need_deactivate,
bool leave_breadcrumbs);
void psmouse_smbus_cleanup(struct psmouse *psmouse);
#else /* !CONFIG_MOUSE_PS2_SMBUS */
static inline int psmouse_smbus_module_init(void)
{
return 0;
}
static inline void psmouse_smbus_module_exit(void)
{
}
static inline void psmouse_smbus_cleanup(struct psmouse *psmouse)
{
}
#endif /* CONFIG_MOUSE_PS2_SMBUS */
#endif /* _PSMOUSE_H */
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