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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 | ||
7d12e780 | 65 | static psmouse_ret_t lifebook_process_byte(struct psmouse *psmouse) |
02d7f589 KE |
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 | ||
02d7f589 KE |
73 | /* calculate X and Y */ |
74 | if ((packet[0] & 0x08) == 0x00) { | |
75 | input_report_abs(dev, ABS_X, | |
76 | (packet[1] | ((packet[0] & 0x30) << 4))); | |
77 | input_report_abs(dev, ABS_Y, | |
14e94143 | 78 | 1024 - (packet[2] | ((packet[0] & 0xC0) << 2))); |
02d7f589 | 79 | } else { |
14e94143 DT |
80 | input_report_rel(dev, REL_X, |
81 | ((packet[0] & 0x10) ? packet[1] - 256 : packet[1])); | |
82 | input_report_rel(dev, REL_Y, | |
83 | -(int)((packet[0] & 0x20) ? packet[2] - 256 : packet[2])); | |
02d7f589 KE |
84 | } |
85 | ||
86 | input_report_key(dev, BTN_LEFT, packet[0] & 0x01); | |
87 | input_report_key(dev, BTN_RIGHT, packet[0] & 0x02); | |
88 | input_report_key(dev, BTN_TOUCH, packet[0] & 0x04); | |
89 | ||
90 | input_sync(dev); | |
91 | ||
92 | return PSMOUSE_FULL_PACKET; | |
93 | } | |
94 | ||
a15d60f8 | 95 | static int lifebook_absolute_mode(struct psmouse *psmouse) |
02d7f589 KE |
96 | { |
97 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
98 | unsigned char param; | |
99 | ||
14e94143 | 100 | if (psmouse_reset(psmouse)) |
02d7f589 KE |
101 | return -1; |
102 | ||
14e94143 | 103 | /* |
02d7f589 KE |
104 | Enable absolute output -- ps2_command fails always but if |
105 | you leave this call out the touchsreen will never send | |
106 | absolute coordinates | |
14e94143 | 107 | */ |
02d7f589 KE |
108 | param = 0x07; |
109 | ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES); | |
110 | ||
02d7f589 KE |
111 | return 0; |
112 | } | |
113 | ||
a913829e DT |
114 | static void lifebook_set_resolution(struct psmouse *psmouse, unsigned int resolution) |
115 | { | |
e38de678 HD |
116 | static const unsigned char params[] = { 0, 1, 2, 2, 3 }; |
117 | unsigned char p; | |
a913829e DT |
118 | |
119 | if (resolution == 0 || resolution > 400) | |
120 | resolution = 400; | |
121 | ||
e38de678 HD |
122 | p = params[resolution / 100]; |
123 | ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES); | |
124 | psmouse->resolution = 50 << p; | |
a913829e DT |
125 | } |
126 | ||
02d7f589 KE |
127 | static void lifebook_disconnect(struct psmouse *psmouse) |
128 | { | |
129 | psmouse_reset(psmouse); | |
130 | } | |
131 | ||
a15d60f8 | 132 | int lifebook_detect(struct psmouse *psmouse, int set_properties) |
02d7f589 | 133 | { |
a15d60f8 | 134 | if (!dmi_check_system(lifebook_dmi_table)) |
02d7f589 KE |
135 | return -1; |
136 | ||
137 | if (set_properties) { | |
a15d60f8 DT |
138 | psmouse->vendor = "Fujitsu"; |
139 | psmouse->name = "Lifebook TouchScreen"; | |
02d7f589 KE |
140 | } |
141 | ||
a15d60f8 | 142 | return 0; |
02d7f589 | 143 | } |
a15d60f8 DT |
144 | |
145 | int lifebook_init(struct psmouse *psmouse) | |
146 | { | |
2e5b636b DT |
147 | struct input_dev *input_dev = psmouse->dev; |
148 | ||
a15d60f8 DT |
149 | if (lifebook_absolute_mode(psmouse)) |
150 | return -1; | |
151 | ||
2e5b636b DT |
152 | input_dev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY) | BIT(EV_REL); |
153 | input_dev->keybit[LONG(BTN_LEFT)] = BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT); | |
154 | input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH); | |
155 | input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y); | |
156 | input_set_abs_params(input_dev, ABS_X, 0, 1024, 0, 0); | |
157 | input_set_abs_params(input_dev, ABS_Y, 0, 1024, 0, 0); | |
a15d60f8 DT |
158 | |
159 | psmouse->protocol_handler = lifebook_process_byte; | |
a913829e | 160 | psmouse->set_resolution = lifebook_set_resolution; |
a15d60f8 DT |
161 | psmouse->disconnect = lifebook_disconnect; |
162 | psmouse->reconnect = lifebook_absolute_mode; | |
163 | psmouse->pktsize = 3; | |
164 | ||
165 | return 0; | |
166 | } | |
167 |