Commit | Line | Data |
---|---|---|
58ac7aa0 | 1 | /* |
a4b5a279 | 2 | * ideapad-laptop.c - Lenovo IdeaPad ACPI Extras |
58ac7aa0 DW |
3 | * |
4 | * Copyright © 2010 Intel Corporation | |
5 | * Copyright © 2010 David Woodhouse <dwmw2@infradead.org> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | |
20 | * 02110-1301, USA. | |
21 | */ | |
22 | ||
9ab23989 JP |
23 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
24 | ||
58ac7aa0 DW |
25 | #include <linux/kernel.h> |
26 | #include <linux/module.h> | |
27 | #include <linux/init.h> | |
28 | #include <linux/types.h> | |
29 | #include <acpi/acpi_bus.h> | |
30 | #include <acpi/acpi_drivers.h> | |
31 | #include <linux/rfkill.h> | |
98ee6919 | 32 | #include <linux/platform_device.h> |
f63409ae IP |
33 | #include <linux/input.h> |
34 | #include <linux/input/sparse-keymap.h> | |
a4ecbb8a IP |
35 | #include <linux/backlight.h> |
36 | #include <linux/fb.h> | |
773e3206 IP |
37 | #include <linux/debugfs.h> |
38 | #include <linux/seq_file.h> | |
58ac7aa0 | 39 | |
c1f73658 | 40 | #define IDEAPAD_RFKILL_DEV_NUM (3) |
58ac7aa0 | 41 | |
3371f481 IP |
42 | #define CFG_BT_BIT (16) |
43 | #define CFG_3G_BIT (17) | |
44 | #define CFG_WIFI_BIT (18) | |
a84511f7 | 45 | #define CFG_CAMERA_BIT (19) |
3371f481 | 46 | |
2be1dc21 IP |
47 | enum { |
48 | VPCCMD_R_VPC1 = 0x10, | |
49 | VPCCMD_R_BL_MAX, | |
50 | VPCCMD_R_BL, | |
51 | VPCCMD_W_BL, | |
52 | VPCCMD_R_WIFI, | |
53 | VPCCMD_W_WIFI, | |
54 | VPCCMD_R_BT, | |
55 | VPCCMD_W_BT, | |
56 | VPCCMD_R_BL_POWER, | |
57 | VPCCMD_R_NOVO, | |
58 | VPCCMD_R_VPC2, | |
59 | VPCCMD_R_TOUCHPAD, | |
60 | VPCCMD_W_TOUCHPAD, | |
61 | VPCCMD_R_CAMERA, | |
62 | VPCCMD_W_CAMERA, | |
63 | VPCCMD_R_3G, | |
64 | VPCCMD_W_3G, | |
65 | VPCCMD_R_ODD, /* 0x21 */ | |
66 | VPCCMD_R_RF = 0x23, | |
67 | VPCCMD_W_RF, | |
68 | VPCCMD_W_BL_POWER = 0x33, | |
69 | }; | |
70 | ||
ce326329 | 71 | struct ideapad_private { |
c1f73658 | 72 | struct rfkill *rfk[IDEAPAD_RFKILL_DEV_NUM]; |
98ee6919 | 73 | struct platform_device *platform_device; |
f63409ae | 74 | struct input_dev *inputdev; |
a4ecbb8a | 75 | struct backlight_device *blightdev; |
773e3206 | 76 | struct dentry *debug; |
3371f481 | 77 | unsigned long cfg; |
58ac7aa0 DW |
78 | }; |
79 | ||
c1f73658 | 80 | static acpi_handle ideapad_handle; |
773e3206 | 81 | static struct ideapad_private *ideapad_priv; |
bfa97b7d IP |
82 | static bool no_bt_rfkill; |
83 | module_param(no_bt_rfkill, bool, 0444); | |
84 | MODULE_PARM_DESC(no_bt_rfkill, "No rfkill for bluetooth."); | |
85 | ||
6a09f21d IP |
86 | /* |
87 | * ACPI Helpers | |
88 | */ | |
89 | #define IDEAPAD_EC_TIMEOUT (100) /* in ms */ | |
90 | ||
91 | static int read_method_int(acpi_handle handle, const char *method, int *val) | |
92 | { | |
93 | acpi_status status; | |
94 | unsigned long long result; | |
95 | ||
96 | status = acpi_evaluate_integer(handle, (char *)method, NULL, &result); | |
97 | if (ACPI_FAILURE(status)) { | |
98 | *val = -1; | |
99 | return -1; | |
100 | } else { | |
101 | *val = result; | |
102 | return 0; | |
103 | } | |
104 | } | |
105 | ||
106 | static int method_vpcr(acpi_handle handle, int cmd, int *ret) | |
107 | { | |
108 | acpi_status status; | |
109 | unsigned long long result; | |
110 | struct acpi_object_list params; | |
111 | union acpi_object in_obj; | |
112 | ||
113 | params.count = 1; | |
114 | params.pointer = &in_obj; | |
115 | in_obj.type = ACPI_TYPE_INTEGER; | |
116 | in_obj.integer.value = cmd; | |
117 | ||
118 | status = acpi_evaluate_integer(handle, "VPCR", ¶ms, &result); | |
119 | ||
120 | if (ACPI_FAILURE(status)) { | |
121 | *ret = -1; | |
122 | return -1; | |
123 | } else { | |
124 | *ret = result; | |
125 | return 0; | |
126 | } | |
127 | } | |
128 | ||
129 | static int method_vpcw(acpi_handle handle, int cmd, int data) | |
130 | { | |
131 | struct acpi_object_list params; | |
132 | union acpi_object in_obj[2]; | |
133 | acpi_status status; | |
134 | ||
135 | params.count = 2; | |
136 | params.pointer = in_obj; | |
137 | in_obj[0].type = ACPI_TYPE_INTEGER; | |
138 | in_obj[0].integer.value = cmd; | |
139 | in_obj[1].type = ACPI_TYPE_INTEGER; | |
140 | in_obj[1].integer.value = data; | |
141 | ||
142 | status = acpi_evaluate_object(handle, "VPCW", ¶ms, NULL); | |
143 | if (status != AE_OK) | |
144 | return -1; | |
145 | return 0; | |
146 | } | |
147 | ||
148 | static int read_ec_data(acpi_handle handle, int cmd, unsigned long *data) | |
149 | { | |
150 | int val; | |
151 | unsigned long int end_jiffies; | |
152 | ||
153 | if (method_vpcw(handle, 1, cmd)) | |
154 | return -1; | |
155 | ||
156 | for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1; | |
157 | time_before(jiffies, end_jiffies);) { | |
158 | schedule(); | |
159 | if (method_vpcr(handle, 1, &val)) | |
160 | return -1; | |
161 | if (val == 0) { | |
162 | if (method_vpcr(handle, 0, &val)) | |
163 | return -1; | |
164 | *data = val; | |
165 | return 0; | |
166 | } | |
167 | } | |
168 | pr_err("timeout in read_ec_cmd\n"); | |
169 | return -1; | |
170 | } | |
171 | ||
172 | static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data) | |
173 | { | |
174 | int val; | |
175 | unsigned long int end_jiffies; | |
176 | ||
177 | if (method_vpcw(handle, 0, data)) | |
178 | return -1; | |
179 | if (method_vpcw(handle, 1, cmd)) | |
180 | return -1; | |
181 | ||
182 | for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1; | |
183 | time_before(jiffies, end_jiffies);) { | |
184 | schedule(); | |
185 | if (method_vpcr(handle, 1, &val)) | |
186 | return -1; | |
187 | if (val == 0) | |
188 | return 0; | |
189 | } | |
190 | pr_err("timeout in write_ec_cmd\n"); | |
191 | return -1; | |
192 | } | |
6a09f21d | 193 | |
773e3206 IP |
194 | /* |
195 | * debugfs | |
196 | */ | |
197 | #define DEBUGFS_EVENT_LEN (4096) | |
198 | static int debugfs_status_show(struct seq_file *s, void *data) | |
199 | { | |
200 | unsigned long value; | |
201 | ||
202 | if (!read_ec_data(ideapad_handle, VPCCMD_R_BL_MAX, &value)) | |
203 | seq_printf(s, "Backlight max:\t%lu\n", value); | |
204 | if (!read_ec_data(ideapad_handle, VPCCMD_R_BL, &value)) | |
205 | seq_printf(s, "Backlight now:\t%lu\n", value); | |
206 | if (!read_ec_data(ideapad_handle, VPCCMD_R_BL_POWER, &value)) | |
207 | seq_printf(s, "BL power value:\t%s\n", value ? "On" : "Off"); | |
208 | seq_printf(s, "=====================\n"); | |
209 | ||
210 | if (!read_ec_data(ideapad_handle, VPCCMD_R_RF, &value)) | |
211 | seq_printf(s, "Radio status:\t%s(%lu)\n", | |
212 | value ? "On" : "Off", value); | |
213 | if (!read_ec_data(ideapad_handle, VPCCMD_R_WIFI, &value)) | |
214 | seq_printf(s, "Wifi status:\t%s(%lu)\n", | |
215 | value ? "On" : "Off", value); | |
216 | if (!read_ec_data(ideapad_handle, VPCCMD_R_BT, &value)) | |
217 | seq_printf(s, "BT status:\t%s(%lu)\n", | |
218 | value ? "On" : "Off", value); | |
219 | if (!read_ec_data(ideapad_handle, VPCCMD_R_3G, &value)) | |
220 | seq_printf(s, "3G status:\t%s(%lu)\n", | |
221 | value ? "On" : "Off", value); | |
222 | seq_printf(s, "=====================\n"); | |
223 | ||
224 | if (!read_ec_data(ideapad_handle, VPCCMD_R_TOUCHPAD, &value)) | |
225 | seq_printf(s, "Touchpad status:%s(%lu)\n", | |
226 | value ? "On" : "Off", value); | |
227 | if (!read_ec_data(ideapad_handle, VPCCMD_R_CAMERA, &value)) | |
228 | seq_printf(s, "Camera status:\t%s(%lu)\n", | |
229 | value ? "On" : "Off", value); | |
230 | ||
231 | return 0; | |
232 | } | |
233 | ||
234 | static int debugfs_status_open(struct inode *inode, struct file *file) | |
235 | { | |
236 | return single_open(file, debugfs_status_show, NULL); | |
237 | } | |
238 | ||
239 | static const struct file_operations debugfs_status_fops = { | |
240 | .owner = THIS_MODULE, | |
241 | .open = debugfs_status_open, | |
242 | .read = seq_read, | |
243 | .llseek = seq_lseek, | |
244 | .release = single_release, | |
245 | }; | |
246 | ||
247 | static int debugfs_cfg_show(struct seq_file *s, void *data) | |
248 | { | |
249 | if (!ideapad_priv) { | |
250 | seq_printf(s, "cfg: N/A\n"); | |
251 | } else { | |
252 | seq_printf(s, "cfg: 0x%.8lX\n\nCapability: ", | |
253 | ideapad_priv->cfg); | |
254 | if (test_bit(CFG_BT_BIT, &ideapad_priv->cfg)) | |
255 | seq_printf(s, "Bluetooth "); | |
256 | if (test_bit(CFG_3G_BIT, &ideapad_priv->cfg)) | |
257 | seq_printf(s, "3G "); | |
258 | if (test_bit(CFG_WIFI_BIT, &ideapad_priv->cfg)) | |
259 | seq_printf(s, "Wireless "); | |
260 | if (test_bit(CFG_CAMERA_BIT, &ideapad_priv->cfg)) | |
261 | seq_printf(s, "Camera "); | |
262 | seq_printf(s, "\nGraphic: "); | |
263 | switch ((ideapad_priv->cfg)&0x700) { | |
264 | case 0x100: | |
265 | seq_printf(s, "Intel"); | |
266 | break; | |
267 | case 0x200: | |
268 | seq_printf(s, "ATI"); | |
269 | break; | |
270 | case 0x300: | |
271 | seq_printf(s, "Nvidia"); | |
272 | break; | |
273 | case 0x400: | |
274 | seq_printf(s, "Intel and ATI"); | |
275 | break; | |
276 | case 0x500: | |
277 | seq_printf(s, "Intel and Nvidia"); | |
278 | break; | |
279 | } | |
280 | seq_printf(s, "\n"); | |
281 | } | |
282 | return 0; | |
283 | } | |
284 | ||
285 | static int debugfs_cfg_open(struct inode *inode, struct file *file) | |
286 | { | |
287 | return single_open(file, debugfs_cfg_show, NULL); | |
288 | } | |
289 | ||
290 | static const struct file_operations debugfs_cfg_fops = { | |
291 | .owner = THIS_MODULE, | |
292 | .open = debugfs_cfg_open, | |
293 | .read = seq_read, | |
294 | .llseek = seq_lseek, | |
295 | .release = single_release, | |
296 | }; | |
297 | ||
298 | static int __devinit ideapad_debugfs_init(struct ideapad_private *priv) | |
299 | { | |
300 | struct dentry *node; | |
301 | ||
302 | priv->debug = debugfs_create_dir("ideapad", NULL); | |
303 | if (priv->debug == NULL) { | |
304 | pr_err("failed to create debugfs directory"); | |
305 | goto errout; | |
306 | } | |
307 | ||
308 | node = debugfs_create_file("cfg", S_IRUGO, priv->debug, NULL, | |
309 | &debugfs_cfg_fops); | |
310 | if (!node) { | |
311 | pr_err("failed to create cfg in debugfs"); | |
312 | goto errout; | |
313 | } | |
314 | ||
315 | node = debugfs_create_file("status", S_IRUGO, priv->debug, NULL, | |
316 | &debugfs_status_fops); | |
317 | if (!node) { | |
318 | pr_err("failed to create event in debugfs"); | |
319 | goto errout; | |
320 | } | |
321 | ||
322 | return 0; | |
323 | ||
324 | errout: | |
325 | return -ENOMEM; | |
326 | } | |
327 | ||
328 | static void ideapad_debugfs_exit(struct ideapad_private *priv) | |
329 | { | |
330 | debugfs_remove_recursive(priv->debug); | |
331 | priv->debug = NULL; | |
332 | } | |
333 | ||
a4b5a279 | 334 | /* |
3371f481 | 335 | * sysfs |
a4b5a279 | 336 | */ |
58ac7aa0 DW |
337 | static ssize_t show_ideapad_cam(struct device *dev, |
338 | struct device_attribute *attr, | |
339 | char *buf) | |
340 | { | |
26c81d5c | 341 | unsigned long result; |
58ac7aa0 | 342 | |
2be1dc21 | 343 | if (read_ec_data(ideapad_handle, VPCCMD_R_CAMERA, &result)) |
26c81d5c IP |
344 | return sprintf(buf, "-1\n"); |
345 | return sprintf(buf, "%lu\n", result); | |
58ac7aa0 DW |
346 | } |
347 | ||
348 | static ssize_t store_ideapad_cam(struct device *dev, | |
349 | struct device_attribute *attr, | |
350 | const char *buf, size_t count) | |
351 | { | |
352 | int ret, state; | |
353 | ||
354 | if (!count) | |
355 | return 0; | |
356 | if (sscanf(buf, "%i", &state) != 1) | |
357 | return -EINVAL; | |
2be1dc21 | 358 | ret = write_ec_cmd(ideapad_handle, VPCCMD_W_CAMERA, state); |
58ac7aa0 DW |
359 | if (ret < 0) |
360 | return ret; | |
361 | return count; | |
362 | } | |
363 | ||
364 | static DEVICE_ATTR(camera_power, 0644, show_ideapad_cam, store_ideapad_cam); | |
365 | ||
3371f481 IP |
366 | static struct attribute *ideapad_attributes[] = { |
367 | &dev_attr_camera_power.attr, | |
3371f481 IP |
368 | NULL |
369 | }; | |
370 | ||
587a1f16 | 371 | static umode_t ideapad_is_visible(struct kobject *kobj, |
a84511f7 IP |
372 | struct attribute *attr, |
373 | int idx) | |
374 | { | |
375 | struct device *dev = container_of(kobj, struct device, kobj); | |
376 | struct ideapad_private *priv = dev_get_drvdata(dev); | |
377 | bool supported; | |
378 | ||
379 | if (attr == &dev_attr_camera_power.attr) | |
380 | supported = test_bit(CFG_CAMERA_BIT, &(priv->cfg)); | |
381 | else | |
382 | supported = true; | |
383 | ||
384 | return supported ? attr->mode : 0; | |
385 | } | |
386 | ||
3371f481 | 387 | static struct attribute_group ideapad_attribute_group = { |
a84511f7 | 388 | .is_visible = ideapad_is_visible, |
3371f481 IP |
389 | .attrs = ideapad_attributes |
390 | }; | |
391 | ||
a4b5a279 IP |
392 | /* |
393 | * Rfkill | |
394 | */ | |
c1f73658 IP |
395 | struct ideapad_rfk_data { |
396 | char *name; | |
397 | int cfgbit; | |
398 | int opcode; | |
399 | int type; | |
400 | }; | |
401 | ||
402 | const struct ideapad_rfk_data ideapad_rfk_data[] = { | |
2be1dc21 IP |
403 | { "ideapad_wlan", CFG_WIFI_BIT, VPCCMD_W_WIFI, RFKILL_TYPE_WLAN }, |
404 | { "ideapad_bluetooth", CFG_BT_BIT, VPCCMD_W_BT, RFKILL_TYPE_BLUETOOTH }, | |
405 | { "ideapad_3g", CFG_3G_BIT, VPCCMD_W_3G, RFKILL_TYPE_WWAN }, | |
c1f73658 IP |
406 | }; |
407 | ||
58ac7aa0 DW |
408 | static int ideapad_rfk_set(void *data, bool blocked) |
409 | { | |
c1f73658 | 410 | unsigned long opcode = (unsigned long)data; |
fa08359e | 411 | |
c1f73658 | 412 | return write_ec_cmd(ideapad_handle, opcode, !blocked); |
58ac7aa0 DW |
413 | } |
414 | ||
415 | static struct rfkill_ops ideapad_rfk_ops = { | |
416 | .set_block = ideapad_rfk_set, | |
417 | }; | |
418 | ||
923de84a | 419 | static void ideapad_sync_rfk_state(struct ideapad_private *priv) |
58ac7aa0 | 420 | { |
2b7266bd | 421 | unsigned long hw_blocked; |
58ac7aa0 DW |
422 | int i; |
423 | ||
2be1dc21 | 424 | if (read_ec_data(ideapad_handle, VPCCMD_R_RF, &hw_blocked)) |
58ac7aa0 | 425 | return; |
2b7266bd | 426 | hw_blocked = !hw_blocked; |
58ac7aa0 | 427 | |
c1f73658 | 428 | for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) |
ce326329 | 429 | if (priv->rfk[i]) |
2b7266bd | 430 | rfkill_set_hw_state(priv->rfk[i], hw_blocked); |
58ac7aa0 DW |
431 | } |
432 | ||
a4b5a279 IP |
433 | static int __devinit ideapad_register_rfkill(struct acpi_device *adevice, |
434 | int dev) | |
58ac7aa0 | 435 | { |
ce326329 | 436 | struct ideapad_private *priv = dev_get_drvdata(&adevice->dev); |
58ac7aa0 | 437 | int ret; |
2b7266bd | 438 | unsigned long sw_blocked; |
58ac7aa0 | 439 | |
bfa97b7d IP |
440 | if (no_bt_rfkill && |
441 | (ideapad_rfk_data[dev].type == RFKILL_TYPE_BLUETOOTH)) { | |
442 | /* Force to enable bluetooth when no_bt_rfkill=1 */ | |
c1f73658 | 443 | write_ec_cmd(ideapad_handle, |
bfa97b7d IP |
444 | ideapad_rfk_data[dev].opcode, 1); |
445 | return 0; | |
446 | } | |
447 | ||
2b7266bd IP |
448 | priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name, &adevice->dev, |
449 | ideapad_rfk_data[dev].type, &ideapad_rfk_ops, | |
ce326329 DW |
450 | (void *)(long)dev); |
451 | if (!priv->rfk[dev]) | |
58ac7aa0 DW |
452 | return -ENOMEM; |
453 | ||
c1f73658 | 454 | if (read_ec_data(ideapad_handle, ideapad_rfk_data[dev].opcode-1, |
2b7266bd IP |
455 | &sw_blocked)) { |
456 | rfkill_init_sw_state(priv->rfk[dev], 0); | |
457 | } else { | |
458 | sw_blocked = !sw_blocked; | |
459 | rfkill_init_sw_state(priv->rfk[dev], sw_blocked); | |
460 | } | |
461 | ||
ce326329 | 462 | ret = rfkill_register(priv->rfk[dev]); |
58ac7aa0 | 463 | if (ret) { |
ce326329 | 464 | rfkill_destroy(priv->rfk[dev]); |
58ac7aa0 DW |
465 | return ret; |
466 | } | |
467 | return 0; | |
468 | } | |
469 | ||
a4ecbb8a | 470 | static void ideapad_unregister_rfkill(struct acpi_device *adevice, int dev) |
58ac7aa0 | 471 | { |
ce326329 DW |
472 | struct ideapad_private *priv = dev_get_drvdata(&adevice->dev); |
473 | ||
474 | if (!priv->rfk[dev]) | |
58ac7aa0 DW |
475 | return; |
476 | ||
ce326329 DW |
477 | rfkill_unregister(priv->rfk[dev]); |
478 | rfkill_destroy(priv->rfk[dev]); | |
58ac7aa0 DW |
479 | } |
480 | ||
98ee6919 IP |
481 | /* |
482 | * Platform device | |
483 | */ | |
8693ae84 | 484 | static int __devinit ideapad_platform_init(struct ideapad_private *priv) |
98ee6919 IP |
485 | { |
486 | int result; | |
487 | ||
8693ae84 IP |
488 | priv->platform_device = platform_device_alloc("ideapad", -1); |
489 | if (!priv->platform_device) | |
98ee6919 | 490 | return -ENOMEM; |
8693ae84 | 491 | platform_set_drvdata(priv->platform_device, priv); |
98ee6919 | 492 | |
8693ae84 | 493 | result = platform_device_add(priv->platform_device); |
98ee6919 IP |
494 | if (result) |
495 | goto fail_platform_device; | |
496 | ||
8693ae84 | 497 | result = sysfs_create_group(&priv->platform_device->dev.kobj, |
c9f718d0 IP |
498 | &ideapad_attribute_group); |
499 | if (result) | |
500 | goto fail_sysfs; | |
98ee6919 IP |
501 | return 0; |
502 | ||
c9f718d0 | 503 | fail_sysfs: |
8693ae84 | 504 | platform_device_del(priv->platform_device); |
98ee6919 | 505 | fail_platform_device: |
8693ae84 | 506 | platform_device_put(priv->platform_device); |
98ee6919 IP |
507 | return result; |
508 | } | |
509 | ||
8693ae84 | 510 | static void ideapad_platform_exit(struct ideapad_private *priv) |
98ee6919 | 511 | { |
8693ae84 | 512 | sysfs_remove_group(&priv->platform_device->dev.kobj, |
c9f718d0 | 513 | &ideapad_attribute_group); |
8693ae84 | 514 | platform_device_unregister(priv->platform_device); |
98ee6919 | 515 | } |
98ee6919 | 516 | |
f63409ae IP |
517 | /* |
518 | * input device | |
519 | */ | |
520 | static const struct key_entry ideapad_keymap[] = { | |
f43d9ec0 IP |
521 | { KE_KEY, 6, { KEY_SWITCHVIDEOMODE } }, |
522 | { KE_KEY, 13, { KEY_WLAN } }, | |
523 | { KE_KEY, 16, { KEY_PROG1 } }, | |
524 | { KE_KEY, 17, { KEY_PROG2 } }, | |
f63409ae IP |
525 | { KE_END, 0 }, |
526 | }; | |
527 | ||
8693ae84 | 528 | static int __devinit ideapad_input_init(struct ideapad_private *priv) |
f63409ae IP |
529 | { |
530 | struct input_dev *inputdev; | |
531 | int error; | |
532 | ||
533 | inputdev = input_allocate_device(); | |
534 | if (!inputdev) { | |
535 | pr_info("Unable to allocate input device\n"); | |
536 | return -ENOMEM; | |
537 | } | |
538 | ||
539 | inputdev->name = "Ideapad extra buttons"; | |
540 | inputdev->phys = "ideapad/input0"; | |
541 | inputdev->id.bustype = BUS_HOST; | |
8693ae84 | 542 | inputdev->dev.parent = &priv->platform_device->dev; |
f63409ae IP |
543 | |
544 | error = sparse_keymap_setup(inputdev, ideapad_keymap, NULL); | |
545 | if (error) { | |
546 | pr_err("Unable to setup input device keymap\n"); | |
547 | goto err_free_dev; | |
548 | } | |
549 | ||
550 | error = input_register_device(inputdev); | |
551 | if (error) { | |
552 | pr_err("Unable to register input device\n"); | |
553 | goto err_free_keymap; | |
554 | } | |
555 | ||
8693ae84 | 556 | priv->inputdev = inputdev; |
f63409ae IP |
557 | return 0; |
558 | ||
559 | err_free_keymap: | |
560 | sparse_keymap_free(inputdev); | |
561 | err_free_dev: | |
562 | input_free_device(inputdev); | |
563 | return error; | |
564 | } | |
565 | ||
7451a55a | 566 | static void ideapad_input_exit(struct ideapad_private *priv) |
f63409ae | 567 | { |
8693ae84 IP |
568 | sparse_keymap_free(priv->inputdev); |
569 | input_unregister_device(priv->inputdev); | |
570 | priv->inputdev = NULL; | |
f63409ae IP |
571 | } |
572 | ||
8693ae84 IP |
573 | static void ideapad_input_report(struct ideapad_private *priv, |
574 | unsigned long scancode) | |
f63409ae | 575 | { |
8693ae84 | 576 | sparse_keymap_report_event(priv->inputdev, scancode, 1, true); |
f63409ae | 577 | } |
f63409ae | 578 | |
f43d9ec0 IP |
579 | static void ideapad_input_novokey(struct ideapad_private *priv) |
580 | { | |
581 | unsigned long long_pressed; | |
582 | ||
583 | if (read_ec_data(ideapad_handle, VPCCMD_R_NOVO, &long_pressed)) | |
584 | return; | |
585 | if (long_pressed) | |
586 | ideapad_input_report(priv, 17); | |
587 | else | |
588 | ideapad_input_report(priv, 16); | |
589 | } | |
590 | ||
a4ecbb8a IP |
591 | /* |
592 | * backlight | |
593 | */ | |
594 | static int ideapad_backlight_get_brightness(struct backlight_device *blightdev) | |
595 | { | |
596 | unsigned long now; | |
597 | ||
2be1dc21 | 598 | if (read_ec_data(ideapad_handle, VPCCMD_R_BL, &now)) |
a4ecbb8a IP |
599 | return -EIO; |
600 | return now; | |
601 | } | |
602 | ||
603 | static int ideapad_backlight_update_status(struct backlight_device *blightdev) | |
604 | { | |
2be1dc21 IP |
605 | if (write_ec_cmd(ideapad_handle, VPCCMD_W_BL, |
606 | blightdev->props.brightness)) | |
a4ecbb8a | 607 | return -EIO; |
2be1dc21 | 608 | if (write_ec_cmd(ideapad_handle, VPCCMD_W_BL_POWER, |
a4ecbb8a IP |
609 | blightdev->props.power == FB_BLANK_POWERDOWN ? 0 : 1)) |
610 | return -EIO; | |
611 | ||
612 | return 0; | |
613 | } | |
614 | ||
615 | static const struct backlight_ops ideapad_backlight_ops = { | |
616 | .get_brightness = ideapad_backlight_get_brightness, | |
617 | .update_status = ideapad_backlight_update_status, | |
618 | }; | |
619 | ||
620 | static int ideapad_backlight_init(struct ideapad_private *priv) | |
621 | { | |
622 | struct backlight_device *blightdev; | |
623 | struct backlight_properties props; | |
624 | unsigned long max, now, power; | |
625 | ||
2be1dc21 | 626 | if (read_ec_data(ideapad_handle, VPCCMD_R_BL_MAX, &max)) |
a4ecbb8a | 627 | return -EIO; |
2be1dc21 | 628 | if (read_ec_data(ideapad_handle, VPCCMD_R_BL, &now)) |
a4ecbb8a | 629 | return -EIO; |
2be1dc21 | 630 | if (read_ec_data(ideapad_handle, VPCCMD_R_BL_POWER, &power)) |
a4ecbb8a IP |
631 | return -EIO; |
632 | ||
633 | memset(&props, 0, sizeof(struct backlight_properties)); | |
634 | props.max_brightness = max; | |
635 | props.type = BACKLIGHT_PLATFORM; | |
636 | blightdev = backlight_device_register("ideapad", | |
637 | &priv->platform_device->dev, | |
638 | priv, | |
639 | &ideapad_backlight_ops, | |
640 | &props); | |
641 | if (IS_ERR(blightdev)) { | |
642 | pr_err("Could not register backlight device\n"); | |
643 | return PTR_ERR(blightdev); | |
644 | } | |
645 | ||
646 | priv->blightdev = blightdev; | |
647 | blightdev->props.brightness = now; | |
648 | blightdev->props.power = power ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; | |
649 | backlight_update_status(blightdev); | |
650 | ||
651 | return 0; | |
652 | } | |
653 | ||
654 | static void ideapad_backlight_exit(struct ideapad_private *priv) | |
655 | { | |
656 | if (priv->blightdev) | |
657 | backlight_device_unregister(priv->blightdev); | |
658 | priv->blightdev = NULL; | |
659 | } | |
660 | ||
661 | static void ideapad_backlight_notify_power(struct ideapad_private *priv) | |
662 | { | |
663 | unsigned long power; | |
664 | struct backlight_device *blightdev = priv->blightdev; | |
665 | ||
d4afc775 RB |
666 | if (!blightdev) |
667 | return; | |
2be1dc21 | 668 | if (read_ec_data(ideapad_handle, VPCCMD_R_BL_POWER, &power)) |
a4ecbb8a IP |
669 | return; |
670 | blightdev->props.power = power ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; | |
671 | } | |
672 | ||
673 | static void ideapad_backlight_notify_brightness(struct ideapad_private *priv) | |
674 | { | |
675 | unsigned long now; | |
676 | ||
677 | /* if we control brightness via acpi video driver */ | |
678 | if (priv->blightdev == NULL) { | |
2be1dc21 | 679 | read_ec_data(ideapad_handle, VPCCMD_R_BL, &now); |
a4ecbb8a IP |
680 | return; |
681 | } | |
682 | ||
683 | backlight_force_update(priv->blightdev, BACKLIGHT_UPDATE_HOTKEY); | |
684 | } | |
685 | ||
a4b5a279 IP |
686 | /* |
687 | * module init/exit | |
688 | */ | |
58ac7aa0 DW |
689 | static const struct acpi_device_id ideapad_device_ids[] = { |
690 | { "VPC2004", 0}, | |
691 | { "", 0}, | |
692 | }; | |
693 | MODULE_DEVICE_TABLE(acpi, ideapad_device_ids); | |
694 | ||
a4b5a279 | 695 | static int __devinit ideapad_acpi_add(struct acpi_device *adevice) |
58ac7aa0 | 696 | { |
3371f481 IP |
697 | int ret, i; |
698 | unsigned long cfg; | |
ce326329 | 699 | struct ideapad_private *priv; |
58ac7aa0 | 700 | |
3371f481 | 701 | if (read_method_int(adevice->handle, "_CFG", (int *)&cfg)) |
6f8371c0 IP |
702 | return -ENODEV; |
703 | ||
ce326329 DW |
704 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); |
705 | if (!priv) | |
706 | return -ENOMEM; | |
c9f718d0 | 707 | dev_set_drvdata(&adevice->dev, priv); |
773e3206 | 708 | ideapad_priv = priv; |
c1f73658 | 709 | ideapad_handle = adevice->handle; |
3371f481 | 710 | priv->cfg = cfg; |
98ee6919 | 711 | |
8693ae84 | 712 | ret = ideapad_platform_init(priv); |
98ee6919 IP |
713 | if (ret) |
714 | goto platform_failed; | |
ce326329 | 715 | |
773e3206 IP |
716 | ret = ideapad_debugfs_init(priv); |
717 | if (ret) | |
718 | goto debugfs_failed; | |
719 | ||
8693ae84 | 720 | ret = ideapad_input_init(priv); |
f63409ae IP |
721 | if (ret) |
722 | goto input_failed; | |
723 | ||
c1f73658 | 724 | for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) { |
3371f481 | 725 | if (test_bit(ideapad_rfk_data[i].cfgbit, &cfg)) |
c9f718d0 | 726 | ideapad_register_rfkill(adevice, i); |
c1f73658 IP |
727 | else |
728 | priv->rfk[i] = NULL; | |
58ac7aa0 | 729 | } |
923de84a | 730 | ideapad_sync_rfk_state(priv); |
c9f718d0 | 731 | |
a4ecbb8a IP |
732 | if (!acpi_video_backlight_support()) { |
733 | ret = ideapad_backlight_init(priv); | |
734 | if (ret && ret != -ENODEV) | |
735 | goto backlight_failed; | |
736 | } | |
737 | ||
58ac7aa0 | 738 | return 0; |
98ee6919 | 739 | |
a4ecbb8a IP |
740 | backlight_failed: |
741 | for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) | |
742 | ideapad_unregister_rfkill(adevice, i); | |
7451a55a | 743 | ideapad_input_exit(priv); |
f63409ae | 744 | input_failed: |
773e3206 IP |
745 | ideapad_debugfs_exit(priv); |
746 | debugfs_failed: | |
8693ae84 | 747 | ideapad_platform_exit(priv); |
98ee6919 IP |
748 | platform_failed: |
749 | kfree(priv); | |
750 | return ret; | |
58ac7aa0 DW |
751 | } |
752 | ||
a4b5a279 | 753 | static int __devexit ideapad_acpi_remove(struct acpi_device *adevice, int type) |
58ac7aa0 | 754 | { |
ce326329 | 755 | struct ideapad_private *priv = dev_get_drvdata(&adevice->dev); |
58ac7aa0 | 756 | int i; |
ce326329 | 757 | |
a4ecbb8a | 758 | ideapad_backlight_exit(priv); |
c1f73658 | 759 | for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) |
ce326329 | 760 | ideapad_unregister_rfkill(adevice, i); |
8693ae84 | 761 | ideapad_input_exit(priv); |
773e3206 | 762 | ideapad_debugfs_exit(priv); |
8693ae84 | 763 | ideapad_platform_exit(priv); |
ce326329 DW |
764 | dev_set_drvdata(&adevice->dev, NULL); |
765 | kfree(priv); | |
c9f718d0 | 766 | |
58ac7aa0 DW |
767 | return 0; |
768 | } | |
769 | ||
ce326329 | 770 | static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event) |
58ac7aa0 | 771 | { |
8693ae84 | 772 | struct ideapad_private *priv = dev_get_drvdata(&adevice->dev); |
8e7d3543 IP |
773 | acpi_handle handle = adevice->handle; |
774 | unsigned long vpc1, vpc2, vpc_bit; | |
775 | ||
2be1dc21 | 776 | if (read_ec_data(handle, VPCCMD_R_VPC1, &vpc1)) |
8e7d3543 | 777 | return; |
2be1dc21 | 778 | if (read_ec_data(handle, VPCCMD_R_VPC2, &vpc2)) |
8e7d3543 IP |
779 | return; |
780 | ||
781 | vpc1 = (vpc2 << 8) | vpc1; | |
782 | for (vpc_bit = 0; vpc_bit < 16; vpc_bit++) { | |
783 | if (test_bit(vpc_bit, &vpc1)) { | |
a4ecbb8a IP |
784 | switch (vpc_bit) { |
785 | case 9: | |
923de84a | 786 | ideapad_sync_rfk_state(priv); |
a4ecbb8a IP |
787 | break; |
788 | case 4: | |
789 | ideapad_backlight_notify_brightness(priv); | |
790 | break; | |
f43d9ec0 IP |
791 | case 3: |
792 | ideapad_input_novokey(priv); | |
793 | break; | |
a4ecbb8a IP |
794 | case 2: |
795 | ideapad_backlight_notify_power(priv); | |
796 | break; | |
797 | default: | |
8693ae84 | 798 | ideapad_input_report(priv, vpc_bit); |
a4ecbb8a | 799 | } |
8e7d3543 IP |
800 | } |
801 | } | |
58ac7aa0 DW |
802 | } |
803 | ||
804 | static struct acpi_driver ideapad_acpi_driver = { | |
805 | .name = "ideapad_acpi", | |
806 | .class = "IdeaPad", | |
807 | .ids = ideapad_device_ids, | |
808 | .ops.add = ideapad_acpi_add, | |
809 | .ops.remove = ideapad_acpi_remove, | |
810 | .ops.notify = ideapad_acpi_notify, | |
811 | .owner = THIS_MODULE, | |
812 | }; | |
813 | ||
58ac7aa0 DW |
814 | static int __init ideapad_acpi_module_init(void) |
815 | { | |
a4b5a279 | 816 | return acpi_bus_register_driver(&ideapad_acpi_driver); |
58ac7aa0 DW |
817 | } |
818 | ||
58ac7aa0 DW |
819 | static void __exit ideapad_acpi_module_exit(void) |
820 | { | |
821 | acpi_bus_unregister_driver(&ideapad_acpi_driver); | |
58ac7aa0 DW |
822 | } |
823 | ||
824 | MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); | |
825 | MODULE_DESCRIPTION("IdeaPad ACPI Extras"); | |
826 | MODULE_LICENSE("GPL"); | |
827 | ||
828 | module_init(ideapad_acpi_module_init); | |
829 | module_exit(ideapad_acpi_module_exit); |