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02d7f589 KE |
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 | ||
02d7f589 | 23 | static struct dmi_system_id lifebook_dmi_table[] = { |
47ce56ed KE |
24 | { |
25 | .ident = "LifeBook B", | |
26 | .matches = { | |
27 | DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B Series"), | |
28 | }, | |
29 | }, | |
02d7f589 | 30 | { |
14e94143 | 31 | .ident = "Lifebook B", |
02d7f589 KE |
32 | .matches = { |
33 | DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK B Series"), | |
34 | }, | |
35 | }, | |
47ce56ed KE |
36 | { |
37 | .ident = "Lifebook B213x/B2150", | |
38 | .matches = { | |
39 | DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B2131/B2133/B2150"), | |
40 | }, | |
41 | }, | |
42 | { | |
43 | .ident = "Zephyr", | |
44 | .matches = { | |
45 | DMI_MATCH(DMI_PRODUCT_NAME, "ZEPHYR"), | |
46 | }, | |
47 | }, | |
48 | { | |
49 | .ident = "CF-18", | |
50 | .matches = { | |
51 | DMI_MATCH(DMI_PRODUCT_NAME, "CF-18"), | |
52 | }, | |
53 | }, | |
1f1a91e0 DG |
54 | { |
55 | .ident = "Lifebook B142", | |
56 | .matches = { | |
57 | DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook B142"), | |
58 | }, | |
59 | ||
60 | }, | |
02d7f589 KE |
61 | { } |
62 | }; | |
63 | ||
64 | ||
65 | static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse, struct pt_regs *regs) | |
66 | { | |
67 | unsigned char *packet = psmouse->packet; | |
2e5b636b | 68 | struct input_dev *dev = psmouse->dev; |
02d7f589 | 69 | |
14e94143 | 70 | if (psmouse->pktcnt != 3) |
02d7f589 KE |
71 | return PSMOUSE_GOOD_DATA; |
72 | ||
73 | input_regs(dev, regs); | |
74 | ||
75 | /* calculate X and Y */ | |
76 | if ((packet[0] & 0x08) == 0x00) { | |
77 | input_report_abs(dev, ABS_X, | |
78 | (packet[1] | ((packet[0] & 0x30) << 4))); | |
79 | input_report_abs(dev, ABS_Y, | |
14e94143 | 80 | 1024 - (packet[2] | ((packet[0] & 0xC0) << 2))); |
02d7f589 | 81 | } else { |
14e94143 DT |
82 | input_report_rel(dev, REL_X, |
83 | ((packet[0] & 0x10) ? packet[1] - 256 : packet[1])); | |
84 | input_report_rel(dev, REL_Y, | |
85 | -(int)((packet[0] & 0x20) ? packet[2] - 256 : packet[2])); | |
02d7f589 KE |
86 | } |
87 | ||
88 | input_report_key(dev, BTN_LEFT, packet[0] & 0x01); | |
89 | input_report_key(dev, BTN_RIGHT, packet[0] & 0x02); | |
90 | input_report_key(dev, BTN_TOUCH, packet[0] & 0x04); | |
91 | ||
92 | input_sync(dev); | |
93 | ||
94 | return PSMOUSE_FULL_PACKET; | |
95 | } | |
96 | ||
a15d60f8 | 97 | static int lifebook_absolute_mode(struct psmouse *psmouse) |
02d7f589 KE |
98 | { |
99 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
100 | unsigned char param; | |
101 | ||
14e94143 | 102 | if (psmouse_reset(psmouse)) |
02d7f589 KE |
103 | return -1; |
104 | ||
14e94143 | 105 | /* |
02d7f589 KE |
106 | Enable absolute output -- ps2_command fails always but if |
107 | you leave this call out the touchsreen will never send | |
108 | absolute coordinates | |
14e94143 | 109 | */ |
02d7f589 KE |
110 | param = 0x07; |
111 | ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES); | |
112 | ||
02d7f589 KE |
113 | return 0; |
114 | } | |
115 | ||
a913829e DT |
116 | static void lifebook_set_resolution(struct psmouse *psmouse, unsigned int resolution) |
117 | { | |
e38de678 HD |
118 | static const unsigned char params[] = { 0, 1, 2, 2, 3 }; |
119 | unsigned char p; | |
a913829e DT |
120 | |
121 | if (resolution == 0 || resolution > 400) | |
122 | resolution = 400; | |
123 | ||
e38de678 HD |
124 | p = params[resolution / 100]; |
125 | ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES); | |
126 | psmouse->resolution = 50 << p; | |
a913829e DT |
127 | } |
128 | ||
02d7f589 KE |
129 | static void lifebook_disconnect(struct psmouse *psmouse) |
130 | { | |
131 | psmouse_reset(psmouse); | |
132 | } | |
133 | ||
a15d60f8 | 134 | int lifebook_detect(struct psmouse *psmouse, int set_properties) |
02d7f589 | 135 | { |
a15d60f8 | 136 | if (!dmi_check_system(lifebook_dmi_table)) |
02d7f589 KE |
137 | return -1; |
138 | ||
139 | if (set_properties) { | |
a15d60f8 DT |
140 | psmouse->vendor = "Fujitsu"; |
141 | psmouse->name = "Lifebook TouchScreen"; | |
02d7f589 KE |
142 | } |
143 | ||
a15d60f8 | 144 | return 0; |
02d7f589 | 145 | } |
a15d60f8 DT |
146 | |
147 | int lifebook_init(struct psmouse *psmouse) | |
148 | { | |
2e5b636b DT |
149 | struct input_dev *input_dev = psmouse->dev; |
150 | ||
a15d60f8 DT |
151 | if (lifebook_absolute_mode(psmouse)) |
152 | return -1; | |
153 | ||
2e5b636b DT |
154 | input_dev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY) | BIT(EV_REL); |
155 | input_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT); | |
156 | input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH); | |
157 | input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y); | |
158 | input_set_abs_params(input_dev, ABS_X, 0, 1024, 0, 0); | |
159 | input_set_abs_params(input_dev, ABS_Y, 0, 1024, 0, 0); | |
a15d60f8 DT |
160 | |
161 | psmouse->protocol_handler = lifebook_process_byte; | |
a913829e | 162 | psmouse->set_resolution = lifebook_set_resolution; |
a15d60f8 DT |
163 | psmouse->disconnect = lifebook_disconnect; |
164 | psmouse->reconnect = lifebook_absolute_mode; | |
165 | psmouse->pktsize = 3; | |
166 | ||
167 | return 0; | |
168 | } | |
169 |