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-rw-r--r--MAINTAINERS5
-rw-r--r--drivers/misc/Kconfig17
-rw-r--r--drivers/misc/Makefile5
-rw-r--r--drivers/misc/compal-laptop.c437
4 files changed, 462 insertions, 2 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index ee1c56a20750..2bfde0326300 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1160,6 +1160,11 @@ M: scott@spiteful.org
1160L: pcihpd-discuss@lists.sourceforge.net 1160L: pcihpd-discuss@lists.sourceforge.net
1161S: Supported 1161S: Supported
1162 1162
1163COMPAL LAPTOP SUPPORT
1164P: Cezary Jackiewicz
1165M: cezary.jackiewicz@gmail.com
1166S: Maintained
1167
1163COMPUTONE INTELLIPORT MULTIPORT CARD 1168COMPUTONE INTELLIPORT MULTIPORT CARD
1164P: Michael H. Warfield 1169P: Michael H. Warfield
1165M: mhw@wittsend.com 1170M: mhw@wittsend.com
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 636af2862308..7fce0da86548 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -219,6 +219,23 @@ config MSI_LAPTOP
219 219
220 If you have an MSI S270 laptop, say Y or M here. 220 If you have an MSI S270 laptop, say Y or M here.
221 221
222config COMPAL_LAPTOP
223 tristate "Compal Laptop Extras"
224 depends on X86
225 depends on ACPI_EC
226 depends on BACKLIGHT_CLASS_DEVICE
227 ---help---
228 This is a driver for laptops built by Compal:
229
230 Compal FL90/IFL90
231 Compal FL91/IFL91
232 Compal FL92/JFL92
233 Compal FT00/IFT00
234
235 It adds support for Bluetooth, WLAN and LCD brightness control.
236
237 If you have an Compal FL9x/IFL9x/FT00 laptop, say Y or M here.
238
222config SONY_LAPTOP 239config SONY_LAPTOP
223 tristate "Sony Laptop Extras" 240 tristate "Sony Laptop Extras"
224 depends on X86 && ACPI 241 depends on X86 && ACPI
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 1952875a272e..a6dac6a2e7e5 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -5,10 +5,11 @@ obj- := misc.o # Dummy rule to force built-in.o to be made
5 5
6obj-$(CONFIG_IBM_ASM) += ibmasm/ 6obj-$(CONFIG_IBM_ASM) += ibmasm/
7obj-$(CONFIG_HDPU_FEATURES) += hdpuftrs/ 7obj-$(CONFIG_HDPU_FEATURES) += hdpuftrs/
8obj-$(CONFIG_MSI_LAPTOP) += msi-laptop.o
9obj-$(CONFIG_ACER_WMI) += acer-wmi.o
10obj-$(CONFIG_ASUS_LAPTOP) += asus-laptop.o 8obj-$(CONFIG_ASUS_LAPTOP) += asus-laptop.o
11obj-$(CONFIG_EEEPC_LAPTOP) += eeepc-laptop.o 9obj-$(CONFIG_EEEPC_LAPTOP) += eeepc-laptop.o
10obj-$(CONFIG_MSI_LAPTOP) += msi-laptop.o
11obj-$(CONFIG_COMPAL_LAPTOP) += compal-laptop.o
12obj-$(CONFIG_ACER_WMI) += acer-wmi.o
12obj-$(CONFIG_ATMEL_PWM) += atmel_pwm.o 13obj-$(CONFIG_ATMEL_PWM) += atmel_pwm.o
13obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o 14obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o
14obj-$(CONFIG_ATMEL_TCLIB) += atmel_tclib.o 15obj-$(CONFIG_ATMEL_TCLIB) += atmel_tclib.o
diff --git a/drivers/misc/compal-laptop.c b/drivers/misc/compal-laptop.c
new file mode 100644
index 000000000000..0c1f5875fbb9
--- /dev/null
+++ b/drivers/misc/compal-laptop.c
@@ -0,0 +1,437 @@
1/*-*-linux-c-*-*/
2
3/*
4 Copyright (C) 2008 Cezary Jackiewicz <cezary.jackiewicz (at) gmail.com>
5
6 based on MSI driver
7
8 Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de>
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 2 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
23 02110-1301, USA.
24 */
25
26/*
27 * comapl-laptop.c - Compal laptop support.
28 *
29 * This driver exports a few files in /sys/devices/platform/compal-laptop/:
30 *
31 * lcd_level - Screen brightness: contains a single integer in the
32 * range 0..7. (rw)
33 *
34 * wlan - wlan subsystem state: contains 0 or 1 (rw)
35 *
36 * bluetooth - Bluetooth subsystem state: contains 0 or 1 (rw)
37 *
38 * raw - raw value taken from embedded controller register (ro)
39 *
40 * In addition to these platform device attributes the driver
41 * registers itself in the Linux backlight control subsystem and is
42 * available to userspace under /sys/class/backlight/compal-laptop/.
43 *
44 * This driver might work on other laptops produced by Compal. If you
45 * want to try it you can pass force=1 as argument to the module which
46 * will force it to load even when the DMI data doesn't identify the
47 * laptop as IFL90.
48 */
49
50#include <linux/module.h>
51#include <linux/kernel.h>
52#include <linux/init.h>
53#include <linux/acpi.h>
54#include <linux/dmi.h>
55#include <linux/backlight.h>
56#include <linux/platform_device.h>
57#include <linux/autoconf.h>
58
59#define COMPAL_DRIVER_VERSION "0.2.5"
60
61#define COMPAL_LCD_LEVEL_MAX 8
62
63#define COMPAL_EC_COMMAND_WIRELESS 0xBB
64#define COMPAL_EC_COMMAND_LCD_LEVEL 0xB9
65
66#define KILLSWITCH_MASK 0x10
67#define WLAN_MASK 0x01
68#define BT_MASK 0x02
69
70static int force;
71module_param(force, bool, 0);
72MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
73
74/* Hardware access */
75
76static int set_lcd_level(int level)
77{
78 if (level < 0 || level >= COMPAL_LCD_LEVEL_MAX)
79 return -EINVAL;
80
81 ec_write(COMPAL_EC_COMMAND_LCD_LEVEL, level);
82
83 return 0;
84}
85
86static int get_lcd_level(void)
87{
88 u8 result;
89
90 ec_read(COMPAL_EC_COMMAND_LCD_LEVEL, &result);
91
92 return (int) result;
93}
94
95static int set_wlan_state(int state)
96{
97 u8 result, value;
98
99 ec_read(COMPAL_EC_COMMAND_WIRELESS, &result);
100
101 if ((result & KILLSWITCH_MASK) == 0)
102 return -EINVAL;
103 else {
104 if (state)
105 value = (u8) (result | WLAN_MASK);
106 else
107 value = (u8) (result & ~WLAN_MASK);
108 ec_write(COMPAL_EC_COMMAND_WIRELESS, value);
109 }
110
111 return 0;
112}
113
114static int set_bluetooth_state(int state)
115{
116 u8 result, value;
117
118 ec_read(COMPAL_EC_COMMAND_WIRELESS, &result);
119
120 if ((result & KILLSWITCH_MASK) == 0)
121 return -EINVAL;
122 else {
123 if (state)
124 value = (u8) (result | BT_MASK);
125 else
126 value = (u8) (result & ~BT_MASK);
127 ec_write(COMPAL_EC_COMMAND_WIRELESS, value);
128 }
129
130 return 0;
131}
132
133static int get_wireless_state(int *wlan, int *bluetooth)
134{
135 u8 result;
136
137 ec_read(COMPAL_EC_COMMAND_WIRELESS, &result);
138
139 if (wlan) {
140 if ((result & KILLSWITCH_MASK) == 0)
141 *wlan = 0;
142 else
143 *wlan = result & WLAN_MASK;
144 }
145
146 if (bluetooth) {
147 if ((result & KILLSWITCH_MASK) == 0)
148 *bluetooth = 0;
149 else
150 *bluetooth = (result & BT_MASK) >> 1;
151 }
152
153 return 0;
154}
155
156/* Backlight device stuff */
157
158static int bl_get_brightness(struct backlight_device *b)
159{
160 return get_lcd_level();
161}
162
163
164static int bl_update_status(struct backlight_device *b)
165{
166 return set_lcd_level(b->props.brightness);
167}
168
169static struct backlight_ops compalbl_ops = {
170 .get_brightness = bl_get_brightness,
171 .update_status = bl_update_status,
172};
173
174static struct backlight_device *compalbl_device;
175
176/* Platform device */
177
178static ssize_t show_wlan(struct device *dev,
179 struct device_attribute *attr, char *buf)
180{
181 int ret, enabled;
182
183 ret = get_wireless_state(&enabled, NULL);
184 if (ret < 0)
185 return ret;
186
187 return sprintf(buf, "%i\n", enabled);
188}
189
190static ssize_t show_raw(struct device *dev,
191 struct device_attribute *attr, char *buf)
192{
193 u8 result;
194
195 ec_read(COMPAL_EC_COMMAND_WIRELESS, &result);
196
197 return sprintf(buf, "%i\n", result);
198}
199
200static ssize_t show_bluetooth(struct device *dev,
201 struct device_attribute *attr, char *buf)
202{
203 int ret, enabled;
204
205 ret = get_wireless_state(NULL, &enabled);
206 if (ret < 0)
207 return ret;
208
209 return sprintf(buf, "%i\n", enabled);
210}
211
212static ssize_t show_lcd_level(struct device *dev,
213 struct device_attribute *attr, char *buf)
214{
215 int ret;
216
217 ret = get_lcd_level();
218 if (ret < 0)
219 return ret;
220
221 return sprintf(buf, "%i\n", ret);
222}
223
224static ssize_t store_lcd_level(struct device *dev,
225 struct device_attribute *attr, const char *buf, size_t count)
226{
227 int level, ret;
228
229 if (sscanf(buf, "%i", &level) != 1 ||
230 (level < 0 || level >= COMPAL_LCD_LEVEL_MAX))
231 return -EINVAL;
232
233 ret = set_lcd_level(level);
234 if (ret < 0)
235 return ret;
236
237 return count;
238}
239
240static ssize_t store_wlan_state(struct device *dev,
241 struct device_attribute *attr, const char *buf, size_t count)
242{
243 int state, ret;
244
245 if (sscanf(buf, "%i", &state) != 1 || (state < 0 || state > 1))
246 return -EINVAL;
247
248 ret = set_wlan_state(state);
249 if (ret < 0)
250 return ret;
251
252 return count;
253}
254
255static ssize_t store_bluetooth_state(struct device *dev,
256 struct device_attribute *attr, const char *buf, size_t count)
257{
258 int state, ret;
259
260 if (sscanf(buf, "%i", &state) != 1 || (state < 0 || state > 1))
261 return -EINVAL;
262
263 ret = set_bluetooth_state(state);
264 if (ret < 0)
265 return ret;
266
267 return count;
268}
269
270static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
271static DEVICE_ATTR(bluetooth, 0644, show_bluetooth, store_bluetooth_state);
272static DEVICE_ATTR(wlan, 0644, show_wlan, store_wlan_state);
273static DEVICE_ATTR(raw, 0444, show_raw, NULL);
274
275static struct attribute *compal_attributes[] = {
276 &dev_attr_lcd_level.attr,
277 &dev_attr_bluetooth.attr,
278 &dev_attr_wlan.attr,
279 &dev_attr_raw.attr,
280 NULL
281};
282
283static struct attribute_group compal_attribute_group = {
284 .attrs = compal_attributes
285};
286
287static struct platform_driver compal_driver = {
288 .driver = {
289 .name = "compal-laptop",
290 .owner = THIS_MODULE,
291 }
292};
293
294static struct platform_device *compal_device;
295
296/* Initialization */
297
298static int dmi_check_cb(const struct dmi_system_id *id)
299{
300 printk(KERN_INFO "compal-laptop: Identified laptop model '%s'.\n",
301 id->ident);
302
303 return 0;
304}
305
306static struct dmi_system_id __initdata compal_dmi_table[] = {
307 {
308 .ident = "FL90/IFL90",
309 .matches = {
310 DMI_MATCH(DMI_BOARD_NAME, "IFL90"),
311 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
312 },
313 .callback = dmi_check_cb
314 },
315 {
316 .ident = "FL90/IFL90",
317 .matches = {
318 DMI_MATCH(DMI_BOARD_NAME, "IFL90"),
319 DMI_MATCH(DMI_BOARD_VERSION, "REFERENCE"),
320 },
321 .callback = dmi_check_cb
322 },
323 {
324 .ident = "FL91/IFL91",
325 .matches = {
326 DMI_MATCH(DMI_BOARD_NAME, "IFL91"),
327 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
328 },
329 .callback = dmi_check_cb
330 },
331 {
332 .ident = "FL92/JFL92",
333 .matches = {
334 DMI_MATCH(DMI_BOARD_NAME, "JFL92"),
335 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
336 },
337 .callback = dmi_check_cb
338 },
339 {
340 .ident = "FT00/IFT00",
341 .matches = {
342 DMI_MATCH(DMI_BOARD_NAME, "IFT00"),
343 DMI_MATCH(DMI_BOARD_VERSION, "IFT00"),
344 },
345 .callback = dmi_check_cb
346 },
347 { }
348};
349
350static int __init compal_init(void)
351{
352 int ret;
353
354 if (acpi_disabled)
355 return -ENODEV;
356
357 if (!force && !dmi_check_system(compal_dmi_table))
358 return -ENODEV;
359
360 /* Register backlight stuff */
361
362 compalbl_device = backlight_device_register("compal-laptop", NULL, NULL,
363 &compalbl_ops);
364 if (IS_ERR(compalbl_device))
365 return PTR_ERR(compalbl_device);
366
367 compalbl_device->props.max_brightness = COMPAL_LCD_LEVEL_MAX-1;
368
369 ret = platform_driver_register(&compal_driver);
370 if (ret)
371 goto fail_backlight;
372
373 /* Register platform stuff */
374
375 compal_device = platform_device_alloc("compal-laptop", -1);
376 if (!compal_device) {
377 ret = -ENOMEM;
378 goto fail_platform_driver;
379 }
380
381 ret = platform_device_add(compal_device);
382 if (ret)
383 goto fail_platform_device1;
384
385 ret = sysfs_create_group(&compal_device->dev.kobj,
386 &compal_attribute_group);
387 if (ret)
388 goto fail_platform_device2;
389
390 printk(KERN_INFO "compal-laptop: driver "COMPAL_DRIVER_VERSION
391 " successfully loaded.\n");
392
393 return 0;
394
395fail_platform_device2:
396
397 platform_device_del(compal_device);
398
399fail_platform_device1:
400
401 platform_device_put(compal_device);
402
403fail_platform_driver:
404
405 platform_driver_unregister(&compal_driver);
406
407fail_backlight:
408
409 backlight_device_unregister(compalbl_device);
410
411 return ret;
412}
413
414static void __exit compal_cleanup(void)
415{
416
417 sysfs_remove_group(&compal_device->dev.kobj, &compal_attribute_group);
418 platform_device_unregister(compal_device);
419 platform_driver_unregister(&compal_driver);
420 backlight_device_unregister(compalbl_device);
421
422 printk(KERN_INFO "compal-laptop: driver unloaded.\n");
423}
424
425module_init(compal_init);
426module_exit(compal_cleanup);
427
428MODULE_AUTHOR("Cezary Jackiewicz");
429MODULE_DESCRIPTION("Compal Laptop Support");
430MODULE_VERSION(COMPAL_DRIVER_VERSION);
431MODULE_LICENSE("GPL");
432
433MODULE_ALIAS("dmi:*:rnIFL90:rvrIFT00:*");
434MODULE_ALIAS("dmi:*:rnIFL90:rvrREFERENCE:*");
435MODULE_ALIAS("dmi:*:rnIFL91:rvrIFT00:*");
436MODULE_ALIAS("dmi:*:rnJFL92:rvrIFT00:*");
437MODULE_ALIAS("dmi:*:rnIFT00:rvrIFT00:*");