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-rw-r--r--drivers/input/misc/Kconfig20
-rw-r--r--drivers/input/misc/Makefile3
-rw-r--r--drivers/input/misc/pcap_keys.c144
-rw-r--r--drivers/input/misc/wm831x-on.c163
4 files changed, 330 insertions, 0 deletions
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index cbe21bc96b52..1a50be379cbc 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -279,4 +279,24 @@ config INPUT_BFIN_ROTARY
279 To compile this driver as a module, choose M here: the 279 To compile this driver as a module, choose M here: the
280 module will be called bfin-rotary. 280 module will be called bfin-rotary.
281 281
282config INPUT_WM831X_ON
283 tristate "WM831X ON pin"
284 depends on MFD_WM831X
285 help
286 Support the ON pin of WM831X PMICs as an input device
287 reporting power button status.
288
289 To compile this driver as a module, choose M here: the module
290 will be called wm831x_on.
291
292config INPUT_PCAP
293 tristate "Motorola EZX PCAP misc input events"
294 depends on EZX_PCAP
295 help
296 Say Y here if you want to use Power key and Headphone button
297 on Motorola EZX phones.
298
299 To compile this driver as a module, choose M here: the
300 module will be called pcap_keys.
301
282endif 302endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 79c1e9a5ea31..bf4db626c313 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
16obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o 16obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o
17obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o 17obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
18obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o 18obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
19obj-$(CONFIG_INPUT_PCAP) += pcap_keys.o
19obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o 20obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o
20obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o 21obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o
21obj-$(CONFIG_INPUT_POWERMATE) += powermate.o 22obj-$(CONFIG_INPUT_POWERMATE) += powermate.o
@@ -26,4 +27,6 @@ obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o
26obj-$(CONFIG_INPUT_TWL4030_PWRBUTTON) += twl4030-pwrbutton.o 27obj-$(CONFIG_INPUT_TWL4030_PWRBUTTON) += twl4030-pwrbutton.o
27obj-$(CONFIG_INPUT_UINPUT) += uinput.o 28obj-$(CONFIG_INPUT_UINPUT) += uinput.o
28obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o 29obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o
30obj-$(CONFIG_INPUT_WM831X_ON) += wm831x-on.o
29obj-$(CONFIG_INPUT_YEALINK) += yealink.o 31obj-$(CONFIG_INPUT_YEALINK) += yealink.o
32
diff --git a/drivers/input/misc/pcap_keys.c b/drivers/input/misc/pcap_keys.c
new file mode 100644
index 000000000000..7ea969347ca9
--- /dev/null
+++ b/drivers/input/misc/pcap_keys.c
@@ -0,0 +1,144 @@
1/*
2 * Input driver for PCAP events:
3 * * Power key
4 * * Headphone button
5 *
6 * Copyright (c) 2008,2009 Ilya Petrov <ilya.muromec@gmail.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12 */
13
14#include <linux/module.h>
15#include <linux/init.h>
16#include <linux/interrupt.h>
17#include <linux/platform_device.h>
18#include <linux/input.h>
19#include <linux/mfd/ezx-pcap.h>
20
21struct pcap_keys {
22 struct pcap_chip *pcap;
23 struct input_dev *input;
24};
25
26/* PCAP2 interrupts us on keypress */
27static irqreturn_t pcap_keys_handler(int irq, void *_pcap_keys)
28{
29 struct pcap_keys *pcap_keys = _pcap_keys;
30 int pirq = irq_to_pcap(pcap_keys->pcap, irq);
31 u32 pstat;
32
33 ezx_pcap_read(pcap_keys->pcap, PCAP_REG_PSTAT, &pstat);
34 pstat &= 1 << pirq;
35
36 switch (pirq) {
37 case PCAP_IRQ_ONOFF:
38 input_report_key(pcap_keys->input, KEY_POWER, !pstat);
39 break;
40 case PCAP_IRQ_MIC:
41 input_report_key(pcap_keys->input, KEY_HP, !pstat);
42 break;
43 }
44
45 input_sync(pcap_keys->input);
46
47 return IRQ_HANDLED;
48}
49
50static int __devinit pcap_keys_probe(struct platform_device *pdev)
51{
52 int err = -ENOMEM;
53 struct pcap_keys *pcap_keys;
54 struct input_dev *input_dev;
55
56 pcap_keys = kmalloc(sizeof(struct pcap_keys), GFP_KERNEL);
57 if (!pcap_keys)
58 return err;
59
60 pcap_keys->pcap = dev_get_drvdata(pdev->dev.parent);
61
62 input_dev = input_allocate_device();
63 if (!input_dev)
64 goto fail;
65
66 pcap_keys->input = input_dev;
67
68 platform_set_drvdata(pdev, pcap_keys);
69 input_dev->name = pdev->name;
70 input_dev->phys = "pcap-keys/input0";
71 input_dev->id.bustype = BUS_HOST;
72 input_dev->dev.parent = &pdev->dev;
73
74 __set_bit(EV_KEY, input_dev->evbit);
75 __set_bit(KEY_POWER, input_dev->keybit);
76 __set_bit(KEY_HP, input_dev->keybit);
77
78 err = input_register_device(input_dev);
79 if (err)
80 goto fail_allocate;
81
82 err = request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF),
83 pcap_keys_handler, 0, "Power key", pcap_keys);
84 if (err)
85 goto fail_register;
86
87 err = request_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_MIC),
88 pcap_keys_handler, 0, "Headphone button", pcap_keys);
89 if (err)
90 goto fail_pwrkey;
91
92 return 0;
93
94fail_pwrkey:
95 free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), pcap_keys);
96fail_register:
97 input_unregister_device(input_dev);
98 goto fail;
99fail_allocate:
100 input_free_device(input_dev);
101fail:
102 kfree(pcap_keys);
103 return err;
104}
105
106static int __devexit pcap_keys_remove(struct platform_device *pdev)
107{
108 struct pcap_keys *pcap_keys = platform_get_drvdata(pdev);
109
110 free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_ONOFF), pcap_keys);
111 free_irq(pcap_to_irq(pcap_keys->pcap, PCAP_IRQ_MIC), pcap_keys);
112
113 input_unregister_device(pcap_keys->input);
114 kfree(pcap_keys);
115
116 return 0;
117}
118
119static struct platform_driver pcap_keys_device_driver = {
120 .probe = pcap_keys_probe,
121 .remove = __devexit_p(pcap_keys_remove),
122 .driver = {
123 .name = "pcap-keys",
124 .owner = THIS_MODULE,
125 }
126};
127
128static int __init pcap_keys_init(void)
129{
130 return platform_driver_register(&pcap_keys_device_driver);
131};
132
133static void __exit pcap_keys_exit(void)
134{
135 platform_driver_unregister(&pcap_keys_device_driver);
136};
137
138module_init(pcap_keys_init);
139module_exit(pcap_keys_exit);
140
141MODULE_DESCRIPTION("Motorola PCAP2 input events driver");
142MODULE_AUTHOR("Ilya Petrov <ilya.muromec@gmail.com>");
143MODULE_LICENSE("GPL");
144MODULE_ALIAS("platform:pcap_keys");
diff --git a/drivers/input/misc/wm831x-on.c b/drivers/input/misc/wm831x-on.c
new file mode 100644
index 000000000000..ba4f5dd7c60e
--- /dev/null
+++ b/drivers/input/misc/wm831x-on.c
@@ -0,0 +1,163 @@
1/**
2 * wm831x-on.c - WM831X ON pin driver
3 *
4 * Copyright (C) 2009 Wolfson Microelectronics plc
5 *
6 * This file is subject to the terms and conditions of the GNU General
7 * Public License. See the file "COPYING" in the main directory of this
8 * archive for more details.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20#include <linux/module.h>
21#include <linux/init.h>
22#include <linux/kernel.h>
23#include <linux/errno.h>
24#include <linux/input.h>
25#include <linux/interrupt.h>
26#include <linux/platform_device.h>
27#include <linux/workqueue.h>
28#include <linux/mfd/wm831x/core.h>
29
30struct wm831x_on {
31 struct input_dev *dev;
32 struct delayed_work work;
33 struct wm831x *wm831x;
34};
35
36/*
37 * The chip gives us an interrupt when the ON pin is asserted but we
38 * then need to poll to see when the pin is deasserted.
39 */
40static void wm831x_poll_on(struct work_struct *work)
41{
42 struct wm831x_on *wm831x_on = container_of(work, struct wm831x_on,
43 work.work);
44 struct wm831x *wm831x = wm831x_on->wm831x;
45 int poll, ret;
46
47 ret = wm831x_reg_read(wm831x, WM831X_ON_PIN_CONTROL);
48 if (ret >= 0) {
49 poll = !(ret & WM831X_ON_PIN_STS);
50
51 input_report_key(wm831x_on->dev, KEY_POWER, poll);
52 input_sync(wm831x_on->dev);
53 } else {
54 dev_err(wm831x->dev, "Failed to read ON status: %d\n", ret);
55 poll = 1;
56 }
57
58 if (poll)
59 schedule_delayed_work(&wm831x_on->work, 100);
60}
61
62static irqreturn_t wm831x_on_irq(int irq, void *data)
63{
64 struct wm831x_on *wm831x_on = data;
65
66 schedule_delayed_work(&wm831x_on->work, 0);
67
68 return IRQ_HANDLED;
69}
70
71static int __devinit wm831x_on_probe(struct platform_device *pdev)
72{
73 struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
74 struct wm831x_on *wm831x_on;
75 int irq = platform_get_irq(pdev, 0);
76 int ret;
77
78 wm831x_on = kzalloc(sizeof(struct wm831x_on), GFP_KERNEL);
79 if (!wm831x_on) {
80 dev_err(&pdev->dev, "Can't allocate data\n");
81 return -ENOMEM;
82 }
83
84 wm831x_on->wm831x = wm831x;
85 INIT_DELAYED_WORK(&wm831x_on->work, wm831x_poll_on);
86
87 wm831x_on->dev = input_allocate_device();
88 if (!wm831x_on->dev) {
89 dev_err(&pdev->dev, "Can't allocate input dev\n");
90 ret = -ENOMEM;
91 goto err;
92 }
93
94 wm831x_on->dev->evbit[0] = BIT_MASK(EV_KEY);
95 wm831x_on->dev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
96 wm831x_on->dev->name = "wm831x_on";
97 wm831x_on->dev->phys = "wm831x_on/input0";
98 wm831x_on->dev->dev.parent = &pdev->dev;
99
100 ret = wm831x_request_irq(wm831x, irq, wm831x_on_irq,
101 IRQF_TRIGGER_RISING, "wm831x_on", wm831x_on);
102 if (ret < 0) {
103 dev_err(&pdev->dev, "Unable to request IRQ: %d\n", ret);
104 goto err_input_dev;
105 }
106 ret = input_register_device(wm831x_on->dev);
107 if (ret) {
108 dev_dbg(&pdev->dev, "Can't register input device: %d\n", ret);
109 goto err_irq;
110 }
111
112 platform_set_drvdata(pdev, wm831x_on);
113
114 return 0;
115
116err_irq:
117 wm831x_free_irq(wm831x, irq, NULL);
118err_input_dev:
119 input_free_device(wm831x_on->dev);
120err:
121 kfree(wm831x_on);
122 return ret;
123}
124
125static int __devexit wm831x_on_remove(struct platform_device *pdev)
126{
127 struct wm831x_on *wm831x_on = platform_get_drvdata(pdev);
128 int irq = platform_get_irq(pdev, 0);
129
130 wm831x_free_irq(wm831x_on->wm831x, irq, wm831x_on);
131 cancel_delayed_work_sync(&wm831x_on->work);
132 input_unregister_device(wm831x_on->dev);
133 kfree(wm831x_on);
134
135 return 0;
136}
137
138static struct platform_driver wm831x_on_driver = {
139 .probe = wm831x_on_probe,
140 .remove = __devexit_p(wm831x_on_remove),
141 .driver = {
142 .name = "wm831x-on",
143 .owner = THIS_MODULE,
144 },
145};
146
147static int __init wm831x_on_init(void)
148{
149 return platform_driver_register(&wm831x_on_driver);
150}
151module_init(wm831x_on_init);
152
153static void __exit wm831x_on_exit(void)
154{
155 platform_driver_unregister(&wm831x_on_driver);
156}
157module_exit(wm831x_on_exit);
158
159MODULE_ALIAS("platform:wm831x-on");
160MODULE_DESCRIPTION("WM831x ON pin");
161MODULE_LICENSE("GPL");
162MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
163
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-21 12:10:23 -0500