Pull video into test branch
[linux-2.6] / drivers / input / mouse / lifebook.c
1 /*
2  * Fujitsu B-series Lifebook PS/2 TouchScreen driver
3  *
4  * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
5  * Copyright (c) 2005 Kenan Esau <kenan.esau@conan.de>
6  *
7  * TouchScreen detection, absolute mode setting and packet layout is taken from
8  * Harald Hoyer's description of the device.
9  *
10  * This program is free software; you can redistribute it and/or modify it
11  * under the terms of the GNU General Public License version 2 as published by
12  * the Free Software Foundation.
13  */
14
15 #include <linux/input.h>
16 #include <linux/serio.h>
17 #include <linux/libps2.h>
18 #include <linux/dmi.h>
19
20 #include "psmouse.h"
21 #include "lifebook.h"
22
23 static struct dmi_system_id lifebook_dmi_table[] = {
24         {
25                 .ident = "FLORA-ie 55mi",
26                 .matches = {
27                         DMI_MATCH(DMI_PRODUCT_NAME, "FLORA-ie 55mi"),
28                 },
29         },
30         {
31                 .ident = "LifeBook B",
32                 .matches = {
33                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B Series"),
34                 },
35         },
36         {
37                 .ident = "Lifebook B",
38                 .matches = {
39                         DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK B Series"),
40                 },
41         },
42         {
43                 .ident = "Lifebook B213x/B2150",
44                 .matches = {
45                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B2131/B2133/B2150"),
46                 },
47         },
48         {
49                 .ident = "Zephyr",
50                 .matches = {
51                         DMI_MATCH(DMI_PRODUCT_NAME, "ZEPHYR"),
52                 },
53         },
54         {
55                 .ident = "CF-18",
56                 .matches = {
57                         DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"),
58                 },
59         },
60         {
61                 .ident = "Lifebook B142",
62                 .matches = {
63                         DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"),
64                 },
65         },
66         { }
67 };
68
69 static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse)
70 {
71         unsigned char *packet = psmouse->packet;
72         struct input_dev *dev = psmouse->dev;
73
74         if (psmouse->pktcnt != 3)
75                 return PSMOUSE_GOOD_DATA;
76
77         /* calculate X and Y */
78         if ((packet[0] & 0x08) == 0x00) {
79                 input_report_abs(dev, ABS_X,
80                                  (packet[1] | ((packet[0] & 0x30) << 4)));
81                 input_report_abs(dev, ABS_Y,
82                                  1024 - (packet[2] | ((packet[0] & 0xC0) << 2)));
83         } else {
84                 input_report_rel(dev, REL_X,
85                                 ((packet[0] & 0x10) ? packet[1] - 256 : packet[1]));
86                 input_report_rel(dev, REL_Y,
87                                  -(int)((packet[0] & 0x20) ? packet[2] - 256 : packet[2]));
88         }
89
90         input_report_key(dev, BTN_LEFT, packet[0] & 0x01);
91         input_report_key(dev, BTN_RIGHT, packet[0] & 0x02);
92         input_report_key(dev, BTN_TOUCH, packet[0] & 0x04);
93
94         input_sync(dev);
95
96         return PSMOUSE_FULL_PACKET;
97 }
98
99 static int lifebook_absolute_mode(struct psmouse *psmouse)
100 {
101         struct ps2dev *ps2dev = &psmouse->ps2dev;
102         unsigned char param;
103
104         if (psmouse_reset(psmouse))
105                 return -1;
106
107         /*
108            Enable absolute output -- ps2_command fails always but if
109            you leave this call out the touchsreen will never send
110            absolute coordinates
111         */
112         param = 0x07;
113         ps2_command(ps2dev, &param, PSMOUSE_CMD_SETRES);
114
115         return 0;
116 }
117
118 static void lifebook_set_resolution(struct psmouse *psmouse, unsigned int resolution)
119 {
120         static const unsigned char params[] = { 0, 1, 2, 2, 3 };
121         unsigned char p;
122
123         if (resolution == 0 || resolution > 400)
124                 resolution = 400;
125
126         p = params[resolution / 100];
127         ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
128         psmouse->resolution = 50 << p;
129 }
130
131 static void lifebook_disconnect(struct psmouse *psmouse)
132 {
133         psmouse_reset(psmouse);
134 }
135
136 int lifebook_detect(struct psmouse *psmouse, int set_properties)
137 {
138         if (!dmi_check_system(lifebook_dmi_table))
139                 return -1;
140
141         if (set_properties) {
142                 psmouse->vendor = "Fujitsu";
143                 psmouse->name = "Lifebook TouchScreen";
144         }
145
146         return 0;
147 }
148
149 int lifebook_init(struct psmouse *psmouse)
150 {
151         struct input_dev *input_dev = psmouse->dev;
152
153         if (lifebook_absolute_mode(psmouse))
154                 return -1;
155
156         input_dev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY) | BIT(EV_REL);
157         input_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT);
158         input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
159         input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
160         input_set_abs_params(input_dev, ABS_X, 0, 1024, 0, 0);
161         input_set_abs_params(input_dev, ABS_Y, 0, 1024, 0, 0);
162
163         psmouse->protocol_handler = lifebook_process_byte;
164         psmouse->set_resolution = lifebook_set_resolution;
165         psmouse->disconnect = lifebook_disconnect;
166         psmouse->reconnect  = lifebook_absolute_mode;
167         psmouse->pktsize = 3;
168
169         return 0;
170 }
171