df08ef27a7
This adds support for OLPC's touchpad. It has lots of neat features, none of which are enabled because the hardware is too buggy. Instead, we use it like a normal touchpad, but with a number of workarounds in place to deal with the frequent hardware spasms. Humidity changes, sweat, tinfoil underwear, plugging in AC, drinks, evil felines.. All tend to cause the touchpad to freak out. Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
139 lines
3.9 KiB
C
139 lines
3.9 KiB
C
#ifndef _PSMOUSE_H
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#define _PSMOUSE_H
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#define PSMOUSE_CMD_SETSCALE11 0x00e6
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#define PSMOUSE_CMD_SETSCALE21 0x00e7
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#define PSMOUSE_CMD_SETRES 0x10e8
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#define PSMOUSE_CMD_GETINFO 0x03e9
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#define PSMOUSE_CMD_SETSTREAM 0x00ea
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#define PSMOUSE_CMD_SETPOLL 0x00f0
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#define PSMOUSE_CMD_POLL 0x00eb /* caller sets number of bytes to receive */
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#define PSMOUSE_CMD_GETID 0x02f2
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#define PSMOUSE_CMD_SETRATE 0x10f3
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#define PSMOUSE_CMD_ENABLE 0x00f4
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#define PSMOUSE_CMD_DISABLE 0x00f5
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#define PSMOUSE_CMD_RESET_DIS 0x00f6
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#define PSMOUSE_CMD_RESET_BAT 0x02ff
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#define PSMOUSE_RET_BAT 0xaa
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#define PSMOUSE_RET_ID 0x00
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#define PSMOUSE_RET_ACK 0xfa
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#define PSMOUSE_RET_NAK 0xfe
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enum psmouse_state {
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PSMOUSE_IGNORE,
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PSMOUSE_INITIALIZING,
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PSMOUSE_RESYNCING,
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PSMOUSE_CMD_MODE,
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PSMOUSE_ACTIVATED,
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};
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/* psmouse protocol handler return codes */
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typedef enum {
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PSMOUSE_BAD_DATA,
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PSMOUSE_GOOD_DATA,
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PSMOUSE_FULL_PACKET
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} psmouse_ret_t;
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struct psmouse {
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void *private;
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struct input_dev *dev;
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struct ps2dev ps2dev;
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struct delayed_work resync_work;
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char *vendor;
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char *name;
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unsigned char packet[8];
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unsigned char badbyte;
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unsigned char pktcnt;
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unsigned char pktsize;
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unsigned char type;
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unsigned char acks_disable_command;
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unsigned int model;
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unsigned long last;
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unsigned long out_of_sync;
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unsigned long num_resyncs;
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enum psmouse_state state;
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char devname[64];
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char phys[32];
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unsigned int rate;
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unsigned int resolution;
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unsigned int resetafter;
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unsigned int resync_time;
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unsigned int smartscroll; /* Logitech only */
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psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse);
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void (*set_rate)(struct psmouse *psmouse, unsigned int rate);
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void (*set_resolution)(struct psmouse *psmouse, unsigned int resolution);
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int (*reconnect)(struct psmouse *psmouse);
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void (*disconnect)(struct psmouse *psmouse);
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void (*cleanup)(struct psmouse *psmouse);
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int (*poll)(struct psmouse *psmouse);
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void (*pt_activate)(struct psmouse *psmouse);
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void (*pt_deactivate)(struct psmouse *psmouse);
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};
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enum psmouse_type {
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PSMOUSE_NONE,
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PSMOUSE_PS2,
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PSMOUSE_PS2PP,
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PSMOUSE_THINKPS,
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PSMOUSE_GENPS,
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PSMOUSE_IMPS,
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PSMOUSE_IMEX,
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PSMOUSE_SYNAPTICS,
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PSMOUSE_ALPS,
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PSMOUSE_LIFEBOOK,
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PSMOUSE_TRACKPOINT,
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PSMOUSE_TOUCHKIT_PS2,
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PSMOUSE_CORTRON,
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PSMOUSE_HGPK,
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PSMOUSE_AUTO /* This one should always be last */
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};
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void psmouse_queue_work(struct psmouse *psmouse, struct delayed_work *work,
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unsigned long delay);
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int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command);
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int psmouse_reset(struct psmouse *psmouse);
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void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state);
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void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution);
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struct psmouse_attribute {
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struct device_attribute dattr;
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void *data;
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ssize_t (*show)(struct psmouse *psmouse, void *data, char *buf);
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ssize_t (*set)(struct psmouse *psmouse, void *data,
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const char *buf, size_t count);
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int protect;
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};
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#define to_psmouse_attr(a) container_of((a), struct psmouse_attribute, dattr)
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ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *attr,
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char *buf);
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ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count);
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#define __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, _protect) \
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static ssize_t _show(struct psmouse *, void *data, char *); \
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static ssize_t _set(struct psmouse *, void *data, const char *, size_t); \
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static struct psmouse_attribute psmouse_attr_##_name = { \
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.dattr = { \
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.attr = { \
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.name = __stringify(_name), \
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.mode = _mode, \
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}, \
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.show = psmouse_attr_show_helper, \
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.store = psmouse_attr_set_helper, \
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}, \
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.data = _data, \
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.show = _show, \
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.set = _set, \
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.protect = _protect, \
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}
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#define PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set) \
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__PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, 1)
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#endif /* _PSMOUSE_H */
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