diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/input/touchscreen/Kconfig | 12 | ||||
-rw-r--r-- | drivers/input/touchscreen/Makefile | 1 | ||||
-rw-r--r-- | drivers/input/touchscreen/touchright.c | 196 |
3 files changed, 209 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index fa038126d508..216db1229376 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig | |||
@@ -120,4 +120,16 @@ config TOUCHSCREEN_PENMOUNT | |||
120 | To compile this driver as a module, choose M here: the | 120 | To compile this driver as a module, choose M here: the |
121 | module will be called penmount. | 121 | module will be called penmount. |
122 | 122 | ||
123 | config TOUCHSCREEN_TOUCHRIGHT | ||
124 | tristate "Touchright serial touchscreen" | ||
125 | select SERIO | ||
126 | help | ||
127 | Say Y here if you have a Touchright serial touchscreen connected to | ||
128 | your system. | ||
129 | |||
130 | If unsure, say N. | ||
131 | |||
132 | To compile this driver as a module, choose M here: the | ||
133 | module will be called touchright. | ||
134 | |||
123 | endif | 135 | endif |
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 72e7be8097a4..deda25e36807 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile | |||
@@ -13,3 +13,4 @@ obj-$(CONFIG_TOUCHSCREEN_MTOUCH) += mtouch.o | |||
13 | obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o | 13 | obj-$(CONFIG_TOUCHSCREEN_MK712) += mk712.o |
14 | obj-$(CONFIG_TOUCHSCREEN_HP600) += hp680_ts_input.o | 14 | obj-$(CONFIG_TOUCHSCREEN_HP600) += hp680_ts_input.o |
15 | obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o | 15 | obj-$(CONFIG_TOUCHSCREEN_PENMOUNT) += penmount.o |
16 | obj-$(CONFIG_TOUCHSCREEN_TOUCHRIGHT) += touchright.o | ||
diff --git a/drivers/input/touchscreen/touchright.c b/drivers/input/touchscreen/touchright.c new file mode 100644 index 000000000000..1c89fa538651 --- /dev/null +++ b/drivers/input/touchscreen/touchright.c | |||
@@ -0,0 +1,196 @@ | |||
1 | /* | ||
2 | * Touchright serial touchscreen driver | ||
3 | * | ||
4 | * Copyright (c) 2006 Rick Koch <n1gp@hotmail.com> | ||
5 | * | ||
6 | * Based on MicroTouch driver (drivers/input/touchscreen/mtouch.c) | ||
7 | * Copyright (c) 2004 Vojtech Pavlik | ||
8 | * and Dan Streetman <ddstreet@ieee.org> | ||
9 | */ | ||
10 | |||
11 | /* | ||
12 | * This program is free software; you can redistribute it and/or modify it | ||
13 | * under the terms of the GNU General Public License version 2 as published | ||
14 | * by the Free Software Foundation. | ||
15 | */ | ||
16 | |||
17 | #include <linux/errno.h> | ||
18 | #include <linux/kernel.h> | ||
19 | #include <linux/module.h> | ||
20 | #include <linux/slab.h> | ||
21 | #include <linux/input.h> | ||
22 | #include <linux/serio.h> | ||
23 | #include <linux/init.h> | ||
24 | |||
25 | #define DRIVER_DESC "Touchright serial touchscreen driver" | ||
26 | |||
27 | MODULE_AUTHOR("Rick Koch <n1gp@hotmail.com>"); | ||
28 | MODULE_DESCRIPTION(DRIVER_DESC); | ||
29 | MODULE_LICENSE("GPL"); | ||
30 | |||
31 | /* | ||
32 | * Definitions & global arrays. | ||
33 | */ | ||
34 | |||
35 | #define TR_FORMAT_TOUCH_BIT 0x01 | ||
36 | #define TR_FORMAT_STATUS_BYTE 0x40 | ||
37 | #define TR_FORMAT_STATUS_MASK ~TR_FORMAT_TOUCH_BIT | ||
38 | |||
39 | #define TR_LENGTH 5 | ||
40 | |||
41 | #define TR_MIN_XC 0 | ||
42 | #define TR_MAX_XC 0x1ff | ||
43 | #define TR_MIN_YC 0 | ||
44 | #define TR_MAX_YC 0x1ff | ||
45 | |||
46 | /* | ||
47 | * Per-touchscreen data. | ||
48 | */ | ||
49 | |||
50 | struct tr { | ||
51 | struct input_dev *dev; | ||
52 | struct serio *serio; | ||
53 | int idx; | ||
54 | unsigned char data[TR_LENGTH]; | ||
55 | char phys[32]; | ||
56 | }; | ||
57 | |||
58 | static irqreturn_t tr_interrupt(struct serio *serio, | ||
59 | unsigned char data, unsigned int flags, struct pt_regs *regs) | ||
60 | { | ||
61 | struct tr *tr = serio_get_drvdata(serio); | ||
62 | struct input_dev *dev = tr->dev; | ||
63 | |||
64 | tr->data[tr->idx] = data; | ||
65 | |||
66 | if ((tr->data[0] & TR_FORMAT_STATUS_MASK) == TR_FORMAT_STATUS_BYTE) { | ||
67 | if (++tr->idx == TR_LENGTH) { | ||
68 | input_regs(dev, regs); | ||
69 | input_report_abs(dev, ABS_X, | ||
70 | (tr->data[1] << 5) | (tr->data[2] >> 1)); | ||
71 | input_report_abs(dev, ABS_Y, | ||
72 | (tr->data[3] << 5) | (tr->data[4] >> 1)); | ||
73 | input_report_key(dev, BTN_TOUCH, | ||
74 | tr->data[0] & TR_FORMAT_TOUCH_BIT); | ||
75 | input_sync(dev); | ||
76 | tr->idx = 0; | ||
77 | } | ||
78 | } | ||
79 | |||
80 | return IRQ_HANDLED; | ||
81 | } | ||
82 | |||
83 | /* | ||
84 | * tr_disconnect() is the opposite of tr_connect() | ||
85 | */ | ||
86 | |||
87 | static void tr_disconnect(struct serio *serio) | ||
88 | { | ||
89 | struct tr *tr = serio_get_drvdata(serio); | ||
90 | |||
91 | input_get_device(tr->dev); | ||
92 | input_unregister_device(tr->dev); | ||
93 | serio_close(serio); | ||
94 | serio_set_drvdata(serio, NULL); | ||
95 | input_put_device(tr->dev); | ||
96 | kfree(tr); | ||
97 | } | ||
98 | |||
99 | /* | ||
100 | * tr_connect() is the routine that is called when someone adds a | ||
101 | * new serio device that supports the Touchright protocol and registers it as | ||
102 | * an input device. | ||
103 | */ | ||
104 | |||
105 | static int tr_connect(struct serio *serio, struct serio_driver *drv) | ||
106 | { | ||
107 | struct tr *tr; | ||
108 | struct input_dev *input_dev; | ||
109 | int err; | ||
110 | |||
111 | tr = kzalloc(sizeof(struct tr), GFP_KERNEL); | ||
112 | input_dev = input_allocate_device(); | ||
113 | if (!tr || !input_dev) { | ||
114 | err = -ENOMEM; | ||
115 | goto fail1; | ||
116 | } | ||
117 | |||
118 | tr->serio = serio; | ||
119 | tr->dev = input_dev; | ||
120 | snprintf(tr->phys, sizeof(tr->phys), "%s/input0", serio->phys); | ||
121 | |||
122 | input_dev->private = tr; | ||
123 | input_dev->name = "Touchright Serial TouchScreen"; | ||
124 | input_dev->phys = tr->phys; | ||
125 | input_dev->id.bustype = BUS_RS232; | ||
126 | input_dev->id.vendor = SERIO_TOUCHRIGHT; | ||
127 | input_dev->id.product = 0; | ||
128 | input_dev->id.version = 0x0100; | ||
129 | input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS); | ||
130 | input_dev->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH); | ||
131 | input_set_abs_params(tr->dev, ABS_X, TR_MIN_XC, TR_MAX_XC, 0, 0); | ||
132 | input_set_abs_params(tr->dev, ABS_Y, TR_MIN_YC, TR_MAX_YC, 0, 0); | ||
133 | |||
134 | serio_set_drvdata(serio, tr); | ||
135 | |||
136 | err = serio_open(serio, drv); | ||
137 | if (err) | ||
138 | goto fail2; | ||
139 | |||
140 | err = input_register_device(tr->dev); | ||
141 | if (err) | ||
142 | goto fail3; | ||
143 | |||
144 | return 0; | ||
145 | |||
146 | fail3: serio_close(serio); | ||
147 | fail2: serio_set_drvdata(serio, NULL); | ||
148 | fail1: input_free_device(input_dev); | ||
149 | kfree(tr); | ||
150 | return err; | ||
151 | } | ||
152 | |||
153 | /* | ||
154 | * The serio driver structure. | ||
155 | */ | ||
156 | |||
157 | static struct serio_device_id tr_serio_ids[] = { | ||
158 | { | ||
159 | .type = SERIO_RS232, | ||
160 | .proto = SERIO_TOUCHRIGHT, | ||
161 | .id = SERIO_ANY, | ||
162 | .extra = SERIO_ANY, | ||
163 | }, | ||
164 | { 0 } | ||
165 | }; | ||
166 | |||
167 | MODULE_DEVICE_TABLE(serio, tr_serio_ids); | ||
168 | |||
169 | static struct serio_driver tr_drv = { | ||
170 | .driver = { | ||
171 | .name = "touchright", | ||
172 | }, | ||
173 | .description = DRIVER_DESC, | ||
174 | .id_table = tr_serio_ids, | ||
175 | .interrupt = tr_interrupt, | ||
176 | .connect = tr_connect, | ||
177 | .disconnect = tr_disconnect, | ||
178 | }; | ||
179 | |||
180 | /* | ||
181 | * The functions for inserting/removing us as a module. | ||
182 | */ | ||
183 | |||
184 | static int __init tr_init(void) | ||
185 | { | ||
186 | serio_register_driver(&tr_drv); | ||
187 | return 0; | ||
188 | } | ||
189 | |||
190 | static void __exit tr_exit(void) | ||
191 | { | ||
192 | serio_unregister_driver(&tr_drv); | ||
193 | } | ||
194 | |||
195 | module_init(tr_init); | ||
196 | module_exit(tr_exit); | ||