summaryrefslogtreecommitdiff
path: root/src/psmcomm.c
blob: db2bbbc82d0862507609eeb52497aa2757200fc0 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
/*
 * Copyright  1997 C. Scott Ananian
 * Copyright  1998-2000 Bruce Kalk
 * Copyright  2001 Stefan Gmeiner
 * Copyright  2002 Linuxcare Inc. David Kennedy
 * Copyright  2003 Fred Hucht
 * Copyright  2004 Arne Schwabe
 *
 * Permission to use, copy, modify, distribute, and sell this software
 * and its documentation for any purpose is hereby granted without
 * fee, provided that the above copyright notice appear in all copies
 * and that both that copyright notice and this permission notice
 * appear in supporting documentation, and that the name of Red Hat
 * not be used in advertising or publicity pertaining to distribution
 * of the software without specific, written prior permission.  Red
 * Hat makes no representations about the suitability of this software
 * for any purpose.  It is provided "as is" without express or implied
 * warranty.
 *
 * THE AUTHORS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
 * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
 * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
 * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * Authors:
 *      Stefan Gmeiner (riddlebox@freesurf.ch)
 *      C. Scott Ananian (cananian@alumni.priceton.edu)
 *      Bruce Kalk (kall@compass.com)
 *      Linuxcare Inc. David Kennedy (dkennedy@linuxcare.com)
 *      Fred Hucht (fred@thp.Uni-Duisburg.de)
 *      Arne Schwabe <schwabe@uni-paderborn.de>
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <xorg-server.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <sys/mouse.h>
#include <errno.h>
#include <string.h>
#include "synproto.h"
#include "synaptics.h"
#include "synapticsstr.h"
#include "ps2comm.h"			    /* ps2_print_ident() */
#include <xf86.h>

#define SYSCALL(call) while (((call) == -1) && (errno == EINTR))

struct SynapticsHwInfo {
    unsigned int model_id;		    /* Model-ID */
    unsigned int capabilities;		    /* Capabilities */
    unsigned int ext_cap;		    /* Extended Capabilities */
    unsigned int identity;		    /* Identification */
};

/*
 * Identify Touchpad
 * See also the SYN_ID_* macros
 */
static Bool
psm_synaptics_identify(int fd, synapticshw_t *ident)
{
    int ret;

    SYSCALL(ret = ioctl(fd, MOUSE_SYN_GETHWINFO, ident));
    if (ret == 0)
	return TRUE;
    else
	return FALSE;
}

/* This define is used in a ioctl but not in mouse.h :/ */
#define PSM_LEVEL_NATIVE	2

static Bool
PSMQueryIsSynaptics(LocalDevicePtr local)
{
    int ret;
    int level = PSM_LEVEL_NATIVE;
    mousehw_t mhw;

    /* Put the device in native protocol mode to be sure
     * Otherwise HWINFO will not return the right id
     * And we will need native mode anyway ...
     */
    SYSCALL(ret = ioctl(local->fd, MOUSE_SETLEVEL, &level));
    if (ret != 0) {
	xf86Msg(X_ERROR, "%s Can't set native mode\n", local->name);
	return FALSE;
    }
    SYSCALL(ret = ioctl(local->fd, MOUSE_GETHWINFO, &mhw));
    if (ret != 0) {
	xf86Msg(X_ERROR, "%s Can't get hardware info\n", local->name);
	return FALSE;
    }

    if (mhw.model == MOUSE_MODEL_SYNAPTICS) {
	return TRUE;
    } else {
	xf86Msg(X_ERROR, "%s Found no Synaptics, found Mouse model %d instead\n",
		local->name, mhw.model);
	return FALSE;
    }
}

static void
convert_hw_info(const synapticshw_t *psm_ident, struct SynapticsHwInfo *synhw)
{
    memset(synhw, 0, sizeof(*synhw));
    synhw->model_id = ((psm_ident->infoRot180 << 23) |
		       (psm_ident->infoPortrait << 22) |
		       (psm_ident->infoSensor << 16) |
		       (psm_ident->infoHardware << 9) |
		       (psm_ident->infoNewAbs << 7) |
		       (psm_ident->capPen << 6) |
		       (psm_ident->infoSimplC << 5) |
		       (psm_ident->infoGeometry));
    synhw->capabilities = ((psm_ident->capExtended << 23) |
			   (psm_ident->capPassthrough << 7) |
			   (psm_ident->capSleep << 4) |
			   (psm_ident->capFourButtons << 3) |
			   (psm_ident->capMultiFinger << 1) |
			   (psm_ident->capPalmDetect));
    synhw->ext_cap = 0;
    synhw->identity = ((psm_ident->infoMajor) |
		       (0x47 << 8) |
		       (psm_ident->infoMinor << 16));
}

static Bool
PSMQueryHardware(LocalDevicePtr local)
{
    synapticshw_t psm_ident;
    struct SynapticsHwInfo *synhw;
    SynapticsPrivate *priv;

    priv = (SynapticsPrivate *)local->private;

    if(!priv->proto_data)
        priv->proto_data = xcalloc(1, sizeof(struct SynapticsHwInfo));
    synhw = (struct SynapticsHwInfo*)priv->proto_data;

    /* is the synaptics touchpad active? */
    if (!PSMQueryIsSynaptics(local))
	return FALSE;

    xf86Msg(X_PROBED, "%s synaptics touchpad found\n", local->name);

    if (!psm_synaptics_identify(local->fd, &psm_ident))
	return FALSE;

    convert_hw_info(&psm_ident, synhw);

    ps2_print_ident(synhw);

    return TRUE;
}

static Bool
PSMReadHwState(LocalDevicePtr local,
	       struct SynapticsProtocolOperations *proto_ops,
	       struct CommData *comm, struct SynapticsHwState *hwRet)
{
    return psaux_proto_operations.ReadHwState(local, proto_ops, comm, hwRet);
}

static Bool PSMAutoDevProbe(LocalDevicePtr local)
{
    return FALSE;
}

struct SynapticsProtocolOperations psm_proto_operations = {
    NULL,
    NULL,
    PSMQueryHardware,
    PSMReadHwState,
    PSMAutoDevProbe,
    SynapticsDefaultDimensions
};