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> | |
8b48463f | 29 | #include <linux/acpi.h> |
58ac7aa0 | 30 | #include <linux/rfkill.h> |
98ee6919 | 31 | #include <linux/platform_device.h> |
f63409ae IP |
32 | #include <linux/input.h> |
33 | #include <linux/input/sparse-keymap.h> | |
a4ecbb8a IP |
34 | #include <linux/backlight.h> |
35 | #include <linux/fb.h> | |
773e3206 IP |
36 | #include <linux/debugfs.h> |
37 | #include <linux/seq_file.h> | |
07a4a4fc | 38 | #include <linux/i8042.h> |
85093f79 | 39 | #include <linux/dmi.h> |
b3facd7b | 40 | #include <linux/device.h> |
58ac7aa0 | 41 | |
c1f73658 | 42 | #define IDEAPAD_RFKILL_DEV_NUM (3) |
58ac7aa0 | 43 | |
3371f481 IP |
44 | #define CFG_BT_BIT (16) |
45 | #define CFG_3G_BIT (17) | |
46 | #define CFG_WIFI_BIT (18) | |
a84511f7 | 47 | #define CFG_CAMERA_BIT (19) |
3371f481 | 48 | |
2be1dc21 IP |
49 | enum { |
50 | VPCCMD_R_VPC1 = 0x10, | |
51 | VPCCMD_R_BL_MAX, | |
52 | VPCCMD_R_BL, | |
53 | VPCCMD_W_BL, | |
54 | VPCCMD_R_WIFI, | |
55 | VPCCMD_W_WIFI, | |
56 | VPCCMD_R_BT, | |
57 | VPCCMD_W_BT, | |
58 | VPCCMD_R_BL_POWER, | |
59 | VPCCMD_R_NOVO, | |
60 | VPCCMD_R_VPC2, | |
61 | VPCCMD_R_TOUCHPAD, | |
62 | VPCCMD_W_TOUCHPAD, | |
63 | VPCCMD_R_CAMERA, | |
64 | VPCCMD_W_CAMERA, | |
65 | VPCCMD_R_3G, | |
66 | VPCCMD_W_3G, | |
67 | VPCCMD_R_ODD, /* 0x21 */ | |
0c7bbeb9 MM |
68 | VPCCMD_W_FAN, |
69 | VPCCMD_R_RF, | |
2be1dc21 | 70 | VPCCMD_W_RF, |
0c7bbeb9 | 71 | VPCCMD_R_FAN = 0x2B, |
296f9fe0 | 72 | VPCCMD_R_SPECIAL_BUTTONS = 0x31, |
2be1dc21 IP |
73 | VPCCMD_W_BL_POWER = 0x33, |
74 | }; | |
75 | ||
331e0ea2 ZR |
76 | struct ideapad_rfk_priv { |
77 | int dev; | |
78 | struct ideapad_private *priv; | |
79 | }; | |
80 | ||
ce326329 | 81 | struct ideapad_private { |
469f6434 | 82 | struct acpi_device *adev; |
c1f73658 | 83 | struct rfkill *rfk[IDEAPAD_RFKILL_DEV_NUM]; |
331e0ea2 | 84 | struct ideapad_rfk_priv rfk_priv[IDEAPAD_RFKILL_DEV_NUM]; |
98ee6919 | 85 | struct platform_device *platform_device; |
f63409ae | 86 | struct input_dev *inputdev; |
a4ecbb8a | 87 | struct backlight_device *blightdev; |
773e3206 | 88 | struct dentry *debug; |
3371f481 | 89 | unsigned long cfg; |
58ac7aa0 DW |
90 | }; |
91 | ||
bfa97b7d IP |
92 | static bool no_bt_rfkill; |
93 | module_param(no_bt_rfkill, bool, 0444); | |
94 | MODULE_PARM_DESC(no_bt_rfkill, "No rfkill for bluetooth."); | |
95 | ||
6a09f21d IP |
96 | /* |
97 | * ACPI Helpers | |
98 | */ | |
99 | #define IDEAPAD_EC_TIMEOUT (100) /* in ms */ | |
100 | ||
101 | static int read_method_int(acpi_handle handle, const char *method, int *val) | |
102 | { | |
103 | acpi_status status; | |
104 | unsigned long long result; | |
105 | ||
106 | status = acpi_evaluate_integer(handle, (char *)method, NULL, &result); | |
107 | if (ACPI_FAILURE(status)) { | |
108 | *val = -1; | |
109 | return -1; | |
110 | } else { | |
111 | *val = result; | |
112 | return 0; | |
113 | } | |
114 | } | |
115 | ||
116 | static int method_vpcr(acpi_handle handle, int cmd, int *ret) | |
117 | { | |
118 | acpi_status status; | |
119 | unsigned long long result; | |
120 | struct acpi_object_list params; | |
121 | union acpi_object in_obj; | |
122 | ||
123 | params.count = 1; | |
124 | params.pointer = &in_obj; | |
125 | in_obj.type = ACPI_TYPE_INTEGER; | |
126 | in_obj.integer.value = cmd; | |
127 | ||
128 | status = acpi_evaluate_integer(handle, "VPCR", ¶ms, &result); | |
129 | ||
130 | if (ACPI_FAILURE(status)) { | |
131 | *ret = -1; | |
132 | return -1; | |
133 | } else { | |
134 | *ret = result; | |
135 | return 0; | |
136 | } | |
137 | } | |
138 | ||
139 | static int method_vpcw(acpi_handle handle, int cmd, int data) | |
140 | { | |
141 | struct acpi_object_list params; | |
142 | union acpi_object in_obj[2]; | |
143 | acpi_status status; | |
144 | ||
145 | params.count = 2; | |
146 | params.pointer = in_obj; | |
147 | in_obj[0].type = ACPI_TYPE_INTEGER; | |
148 | in_obj[0].integer.value = cmd; | |
149 | in_obj[1].type = ACPI_TYPE_INTEGER; | |
150 | in_obj[1].integer.value = data; | |
151 | ||
152 | status = acpi_evaluate_object(handle, "VPCW", ¶ms, NULL); | |
153 | if (status != AE_OK) | |
154 | return -1; | |
155 | return 0; | |
156 | } | |
157 | ||
158 | static int read_ec_data(acpi_handle handle, int cmd, unsigned long *data) | |
159 | { | |
160 | int val; | |
161 | unsigned long int end_jiffies; | |
162 | ||
163 | if (method_vpcw(handle, 1, cmd)) | |
164 | return -1; | |
165 | ||
166 | for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1; | |
167 | time_before(jiffies, end_jiffies);) { | |
168 | schedule(); | |
169 | if (method_vpcr(handle, 1, &val)) | |
170 | return -1; | |
171 | if (val == 0) { | |
172 | if (method_vpcr(handle, 0, &val)) | |
173 | return -1; | |
174 | *data = val; | |
175 | return 0; | |
176 | } | |
177 | } | |
178 | pr_err("timeout in read_ec_cmd\n"); | |
179 | return -1; | |
180 | } | |
181 | ||
182 | static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data) | |
183 | { | |
184 | int val; | |
185 | unsigned long int end_jiffies; | |
186 | ||
187 | if (method_vpcw(handle, 0, data)) | |
188 | return -1; | |
189 | if (method_vpcw(handle, 1, cmd)) | |
190 | return -1; | |
191 | ||
192 | for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1; | |
193 | time_before(jiffies, end_jiffies);) { | |
194 | schedule(); | |
195 | if (method_vpcr(handle, 1, &val)) | |
196 | return -1; | |
197 | if (val == 0) | |
198 | return 0; | |
199 | } | |
200 | pr_err("timeout in write_ec_cmd\n"); | |
201 | return -1; | |
202 | } | |
6a09f21d | 203 | |
773e3206 IP |
204 | /* |
205 | * debugfs | |
206 | */ | |
773e3206 IP |
207 | static int debugfs_status_show(struct seq_file *s, void *data) |
208 | { | |
331e0ea2 | 209 | struct ideapad_private *priv = s->private; |
773e3206 IP |
210 | unsigned long value; |
211 | ||
331e0ea2 ZR |
212 | if (!priv) |
213 | return -EINVAL; | |
214 | ||
215 | if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL_MAX, &value)) | |
773e3206 | 216 | seq_printf(s, "Backlight max:\t%lu\n", value); |
331e0ea2 | 217 | if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL, &value)) |
773e3206 | 218 | seq_printf(s, "Backlight now:\t%lu\n", value); |
331e0ea2 | 219 | if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &value)) |
773e3206 IP |
220 | seq_printf(s, "BL power value:\t%s\n", value ? "On" : "Off"); |
221 | seq_printf(s, "=====================\n"); | |
222 | ||
331e0ea2 | 223 | if (!read_ec_data(priv->adev->handle, VPCCMD_R_RF, &value)) |
773e3206 IP |
224 | seq_printf(s, "Radio status:\t%s(%lu)\n", |
225 | value ? "On" : "Off", value); | |
331e0ea2 | 226 | if (!read_ec_data(priv->adev->handle, VPCCMD_R_WIFI, &value)) |
773e3206 IP |
227 | seq_printf(s, "Wifi status:\t%s(%lu)\n", |
228 | value ? "On" : "Off", value); | |
331e0ea2 | 229 | if (!read_ec_data(priv->adev->handle, VPCCMD_R_BT, &value)) |
773e3206 IP |
230 | seq_printf(s, "BT status:\t%s(%lu)\n", |
231 | value ? "On" : "Off", value); | |
331e0ea2 | 232 | if (!read_ec_data(priv->adev->handle, VPCCMD_R_3G, &value)) |
773e3206 IP |
233 | seq_printf(s, "3G status:\t%s(%lu)\n", |
234 | value ? "On" : "Off", value); | |
235 | seq_printf(s, "=====================\n"); | |
236 | ||
331e0ea2 | 237 | if (!read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value)) |
773e3206 IP |
238 | seq_printf(s, "Touchpad status:%s(%lu)\n", |
239 | value ? "On" : "Off", value); | |
331e0ea2 | 240 | if (!read_ec_data(priv->adev->handle, VPCCMD_R_CAMERA, &value)) |
773e3206 IP |
241 | seq_printf(s, "Camera status:\t%s(%lu)\n", |
242 | value ? "On" : "Off", value); | |
243 | ||
244 | return 0; | |
245 | } | |
246 | ||
247 | static int debugfs_status_open(struct inode *inode, struct file *file) | |
248 | { | |
331e0ea2 | 249 | return single_open(file, debugfs_status_show, inode->i_private); |
773e3206 IP |
250 | } |
251 | ||
252 | static const struct file_operations debugfs_status_fops = { | |
253 | .owner = THIS_MODULE, | |
254 | .open = debugfs_status_open, | |
255 | .read = seq_read, | |
256 | .llseek = seq_lseek, | |
257 | .release = single_release, | |
258 | }; | |
259 | ||
260 | static int debugfs_cfg_show(struct seq_file *s, void *data) | |
261 | { | |
331e0ea2 ZR |
262 | struct ideapad_private *priv = s->private; |
263 | ||
264 | if (!priv) { | |
773e3206 IP |
265 | seq_printf(s, "cfg: N/A\n"); |
266 | } else { | |
267 | seq_printf(s, "cfg: 0x%.8lX\n\nCapability: ", | |
331e0ea2 ZR |
268 | priv->cfg); |
269 | if (test_bit(CFG_BT_BIT, &priv->cfg)) | |
773e3206 | 270 | seq_printf(s, "Bluetooth "); |
331e0ea2 | 271 | if (test_bit(CFG_3G_BIT, &priv->cfg)) |
773e3206 | 272 | seq_printf(s, "3G "); |
331e0ea2 | 273 | if (test_bit(CFG_WIFI_BIT, &priv->cfg)) |
773e3206 | 274 | seq_printf(s, "Wireless "); |
331e0ea2 | 275 | if (test_bit(CFG_CAMERA_BIT, &priv->cfg)) |
773e3206 IP |
276 | seq_printf(s, "Camera "); |
277 | seq_printf(s, "\nGraphic: "); | |
331e0ea2 | 278 | switch ((priv->cfg)&0x700) { |
773e3206 IP |
279 | case 0x100: |
280 | seq_printf(s, "Intel"); | |
281 | break; | |
282 | case 0x200: | |
283 | seq_printf(s, "ATI"); | |
284 | break; | |
285 | case 0x300: | |
286 | seq_printf(s, "Nvidia"); | |
287 | break; | |
288 | case 0x400: | |
289 | seq_printf(s, "Intel and ATI"); | |
290 | break; | |
291 | case 0x500: | |
292 | seq_printf(s, "Intel and Nvidia"); | |
293 | break; | |
294 | } | |
295 | seq_printf(s, "\n"); | |
296 | } | |
297 | return 0; | |
298 | } | |
299 | ||
300 | static int debugfs_cfg_open(struct inode *inode, struct file *file) | |
301 | { | |
331e0ea2 | 302 | return single_open(file, debugfs_cfg_show, inode->i_private); |
773e3206 IP |
303 | } |
304 | ||
305 | static const struct file_operations debugfs_cfg_fops = { | |
306 | .owner = THIS_MODULE, | |
307 | .open = debugfs_cfg_open, | |
308 | .read = seq_read, | |
309 | .llseek = seq_lseek, | |
310 | .release = single_release, | |
311 | }; | |
312 | ||
b859f159 | 313 | static int ideapad_debugfs_init(struct ideapad_private *priv) |
773e3206 IP |
314 | { |
315 | struct dentry *node; | |
316 | ||
317 | priv->debug = debugfs_create_dir("ideapad", NULL); | |
318 | if (priv->debug == NULL) { | |
319 | pr_err("failed to create debugfs directory"); | |
320 | goto errout; | |
321 | } | |
322 | ||
331e0ea2 | 323 | node = debugfs_create_file("cfg", S_IRUGO, priv->debug, priv, |
773e3206 IP |
324 | &debugfs_cfg_fops); |
325 | if (!node) { | |
326 | pr_err("failed to create cfg in debugfs"); | |
327 | goto errout; | |
328 | } | |
329 | ||
331e0ea2 | 330 | node = debugfs_create_file("status", S_IRUGO, priv->debug, priv, |
773e3206 IP |
331 | &debugfs_status_fops); |
332 | if (!node) { | |
a5c3892f | 333 | pr_err("failed to create status in debugfs"); |
773e3206 IP |
334 | goto errout; |
335 | } | |
336 | ||
337 | return 0; | |
338 | ||
339 | errout: | |
340 | return -ENOMEM; | |
341 | } | |
342 | ||
343 | static void ideapad_debugfs_exit(struct ideapad_private *priv) | |
344 | { | |
345 | debugfs_remove_recursive(priv->debug); | |
346 | priv->debug = NULL; | |
347 | } | |
348 | ||
a4b5a279 | 349 | /* |
3371f481 | 350 | * sysfs |
a4b5a279 | 351 | */ |
58ac7aa0 DW |
352 | static ssize_t show_ideapad_cam(struct device *dev, |
353 | struct device_attribute *attr, | |
354 | char *buf) | |
355 | { | |
26c81d5c | 356 | unsigned long result; |
331e0ea2 | 357 | struct ideapad_private *priv = dev_get_drvdata(dev); |
58ac7aa0 | 358 | |
331e0ea2 | 359 | if (read_ec_data(priv->adev->handle, VPCCMD_R_CAMERA, &result)) |
26c81d5c IP |
360 | return sprintf(buf, "-1\n"); |
361 | return sprintf(buf, "%lu\n", result); | |
58ac7aa0 DW |
362 | } |
363 | ||
364 | static ssize_t store_ideapad_cam(struct device *dev, | |
365 | struct device_attribute *attr, | |
366 | const char *buf, size_t count) | |
367 | { | |
368 | int ret, state; | |
331e0ea2 | 369 | struct ideapad_private *priv = dev_get_drvdata(dev); |
58ac7aa0 DW |
370 | |
371 | if (!count) | |
372 | return 0; | |
373 | if (sscanf(buf, "%i", &state) != 1) | |
374 | return -EINVAL; | |
331e0ea2 | 375 | ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_CAMERA, state); |
58ac7aa0 | 376 | if (ret < 0) |
0c7bbeb9 | 377 | return -EIO; |
58ac7aa0 DW |
378 | return count; |
379 | } | |
380 | ||
381 | static DEVICE_ATTR(camera_power, 0644, show_ideapad_cam, store_ideapad_cam); | |
382 | ||
0c7bbeb9 MM |
383 | static ssize_t show_ideapad_fan(struct device *dev, |
384 | struct device_attribute *attr, | |
385 | char *buf) | |
386 | { | |
387 | unsigned long result; | |
331e0ea2 | 388 | struct ideapad_private *priv = dev_get_drvdata(dev); |
0c7bbeb9 | 389 | |
331e0ea2 | 390 | if (read_ec_data(priv->adev->handle, VPCCMD_R_FAN, &result)) |
0c7bbeb9 MM |
391 | return sprintf(buf, "-1\n"); |
392 | return sprintf(buf, "%lu\n", result); | |
393 | } | |
394 | ||
395 | static ssize_t store_ideapad_fan(struct device *dev, | |
396 | struct device_attribute *attr, | |
397 | const char *buf, size_t count) | |
398 | { | |
399 | int ret, state; | |
331e0ea2 | 400 | struct ideapad_private *priv = dev_get_drvdata(dev); |
0c7bbeb9 MM |
401 | |
402 | if (!count) | |
403 | return 0; | |
404 | if (sscanf(buf, "%i", &state) != 1) | |
405 | return -EINVAL; | |
406 | if (state < 0 || state > 4 || state == 3) | |
407 | return -EINVAL; | |
331e0ea2 | 408 | ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_FAN, state); |
0c7bbeb9 MM |
409 | if (ret < 0) |
410 | return -EIO; | |
411 | return count; | |
412 | } | |
413 | ||
414 | static DEVICE_ATTR(fan_mode, 0644, show_ideapad_fan, store_ideapad_fan); | |
415 | ||
3371f481 IP |
416 | static struct attribute *ideapad_attributes[] = { |
417 | &dev_attr_camera_power.attr, | |
0c7bbeb9 | 418 | &dev_attr_fan_mode.attr, |
3371f481 IP |
419 | NULL |
420 | }; | |
421 | ||
587a1f16 | 422 | static umode_t ideapad_is_visible(struct kobject *kobj, |
a84511f7 IP |
423 | struct attribute *attr, |
424 | int idx) | |
425 | { | |
426 | struct device *dev = container_of(kobj, struct device, kobj); | |
427 | struct ideapad_private *priv = dev_get_drvdata(dev); | |
428 | bool supported; | |
429 | ||
430 | if (attr == &dev_attr_camera_power.attr) | |
431 | supported = test_bit(CFG_CAMERA_BIT, &(priv->cfg)); | |
0c7bbeb9 MM |
432 | else if (attr == &dev_attr_fan_mode.attr) { |
433 | unsigned long value; | |
331e0ea2 ZR |
434 | supported = !read_ec_data(priv->adev->handle, VPCCMD_R_FAN, |
435 | &value); | |
0c7bbeb9 | 436 | } else |
a84511f7 IP |
437 | supported = true; |
438 | ||
439 | return supported ? attr->mode : 0; | |
440 | } | |
441 | ||
3371f481 | 442 | static struct attribute_group ideapad_attribute_group = { |
a84511f7 | 443 | .is_visible = ideapad_is_visible, |
3371f481 IP |
444 | .attrs = ideapad_attributes |
445 | }; | |
446 | ||
a4b5a279 IP |
447 | /* |
448 | * Rfkill | |
449 | */ | |
c1f73658 IP |
450 | struct ideapad_rfk_data { |
451 | char *name; | |
452 | int cfgbit; | |
453 | int opcode; | |
454 | int type; | |
455 | }; | |
456 | ||
457 | const struct ideapad_rfk_data ideapad_rfk_data[] = { | |
2be1dc21 IP |
458 | { "ideapad_wlan", CFG_WIFI_BIT, VPCCMD_W_WIFI, RFKILL_TYPE_WLAN }, |
459 | { "ideapad_bluetooth", CFG_BT_BIT, VPCCMD_W_BT, RFKILL_TYPE_BLUETOOTH }, | |
460 | { "ideapad_3g", CFG_3G_BIT, VPCCMD_W_3G, RFKILL_TYPE_WWAN }, | |
c1f73658 IP |
461 | }; |
462 | ||
58ac7aa0 DW |
463 | static int ideapad_rfk_set(void *data, bool blocked) |
464 | { | |
331e0ea2 | 465 | struct ideapad_rfk_priv *priv = data; |
fa08359e | 466 | |
331e0ea2 | 467 | return write_ec_cmd(priv->priv->adev->handle, priv->dev, !blocked); |
58ac7aa0 DW |
468 | } |
469 | ||
470 | static struct rfkill_ops ideapad_rfk_ops = { | |
471 | .set_block = ideapad_rfk_set, | |
472 | }; | |
473 | ||
923de84a | 474 | static void ideapad_sync_rfk_state(struct ideapad_private *priv) |
58ac7aa0 | 475 | { |
2b7266bd | 476 | unsigned long hw_blocked; |
58ac7aa0 DW |
477 | int i; |
478 | ||
331e0ea2 | 479 | if (read_ec_data(priv->adev->handle, VPCCMD_R_RF, &hw_blocked)) |
58ac7aa0 | 480 | return; |
2b7266bd | 481 | hw_blocked = !hw_blocked; |
58ac7aa0 | 482 | |
c1f73658 | 483 | for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) |
ce326329 | 484 | if (priv->rfk[i]) |
2b7266bd | 485 | rfkill_set_hw_state(priv->rfk[i], hw_blocked); |
58ac7aa0 DW |
486 | } |
487 | ||
75a11f11 | 488 | static int ideapad_register_rfkill(struct ideapad_private *priv, int dev) |
58ac7aa0 DW |
489 | { |
490 | int ret; | |
2b7266bd | 491 | unsigned long sw_blocked; |
58ac7aa0 | 492 | |
bfa97b7d IP |
493 | if (no_bt_rfkill && |
494 | (ideapad_rfk_data[dev].type == RFKILL_TYPE_BLUETOOTH)) { | |
495 | /* Force to enable bluetooth when no_bt_rfkill=1 */ | |
331e0ea2 | 496 | write_ec_cmd(priv->adev->handle, |
bfa97b7d IP |
497 | ideapad_rfk_data[dev].opcode, 1); |
498 | return 0; | |
499 | } | |
331e0ea2 ZR |
500 | priv->rfk_priv[dev].dev = dev; |
501 | priv->rfk_priv[dev].priv = priv; | |
bfa97b7d | 502 | |
75a11f11 | 503 | priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name, |
b5c37b79 | 504 | &priv->platform_device->dev, |
75a11f11 ZR |
505 | ideapad_rfk_data[dev].type, |
506 | &ideapad_rfk_ops, | |
331e0ea2 | 507 | &priv->rfk_priv[dev]); |
ce326329 | 508 | if (!priv->rfk[dev]) |
58ac7aa0 DW |
509 | return -ENOMEM; |
510 | ||
331e0ea2 | 511 | if (read_ec_data(priv->adev->handle, ideapad_rfk_data[dev].opcode-1, |
2b7266bd IP |
512 | &sw_blocked)) { |
513 | rfkill_init_sw_state(priv->rfk[dev], 0); | |
514 | } else { | |
515 | sw_blocked = !sw_blocked; | |
516 | rfkill_init_sw_state(priv->rfk[dev], sw_blocked); | |
517 | } | |
518 | ||
ce326329 | 519 | ret = rfkill_register(priv->rfk[dev]); |
58ac7aa0 | 520 | if (ret) { |
ce326329 | 521 | rfkill_destroy(priv->rfk[dev]); |
58ac7aa0 DW |
522 | return ret; |
523 | } | |
524 | return 0; | |
525 | } | |
526 | ||
75a11f11 | 527 | static void ideapad_unregister_rfkill(struct ideapad_private *priv, int dev) |
58ac7aa0 | 528 | { |
ce326329 | 529 | if (!priv->rfk[dev]) |
58ac7aa0 DW |
530 | return; |
531 | ||
ce326329 DW |
532 | rfkill_unregister(priv->rfk[dev]); |
533 | rfkill_destroy(priv->rfk[dev]); | |
58ac7aa0 DW |
534 | } |
535 | ||
98ee6919 IP |
536 | /* |
537 | * Platform device | |
538 | */ | |
b5c37b79 | 539 | static int ideapad_sysfs_init(struct ideapad_private *priv) |
98ee6919 | 540 | { |
b5c37b79 | 541 | return sysfs_create_group(&priv->platform_device->dev.kobj, |
c9f718d0 | 542 | &ideapad_attribute_group); |
98ee6919 IP |
543 | } |
544 | ||
b5c37b79 | 545 | static void ideapad_sysfs_exit(struct ideapad_private *priv) |
98ee6919 | 546 | { |
8693ae84 | 547 | sysfs_remove_group(&priv->platform_device->dev.kobj, |
c9f718d0 | 548 | &ideapad_attribute_group); |
98ee6919 | 549 | } |
98ee6919 | 550 | |
f63409ae IP |
551 | /* |
552 | * input device | |
553 | */ | |
554 | static const struct key_entry ideapad_keymap[] = { | |
f43d9ec0 | 555 | { KE_KEY, 6, { KEY_SWITCHVIDEOMODE } }, |
296f9fe0 MM |
556 | { KE_KEY, 7, { KEY_CAMERA } }, |
557 | { KE_KEY, 11, { KEY_F16 } }, | |
f43d9ec0 IP |
558 | { KE_KEY, 13, { KEY_WLAN } }, |
559 | { KE_KEY, 16, { KEY_PROG1 } }, | |
560 | { KE_KEY, 17, { KEY_PROG2 } }, | |
296f9fe0 MM |
561 | { KE_KEY, 64, { KEY_PROG3 } }, |
562 | { KE_KEY, 65, { KEY_PROG4 } }, | |
07a4a4fc MM |
563 | { KE_KEY, 66, { KEY_TOUCHPAD_OFF } }, |
564 | { KE_KEY, 67, { KEY_TOUCHPAD_ON } }, | |
f63409ae IP |
565 | { KE_END, 0 }, |
566 | }; | |
567 | ||
b859f159 | 568 | static int ideapad_input_init(struct ideapad_private *priv) |
f63409ae IP |
569 | { |
570 | struct input_dev *inputdev; | |
571 | int error; | |
572 | ||
573 | inputdev = input_allocate_device(); | |
b222cca6 | 574 | if (!inputdev) |
f63409ae | 575 | return -ENOMEM; |
f63409ae IP |
576 | |
577 | inputdev->name = "Ideapad extra buttons"; | |
578 | inputdev->phys = "ideapad/input0"; | |
579 | inputdev->id.bustype = BUS_HOST; | |
8693ae84 | 580 | inputdev->dev.parent = &priv->platform_device->dev; |
f63409ae IP |
581 | |
582 | error = sparse_keymap_setup(inputdev, ideapad_keymap, NULL); | |
583 | if (error) { | |
584 | pr_err("Unable to setup input device keymap\n"); | |
585 | goto err_free_dev; | |
586 | } | |
587 | ||
588 | error = input_register_device(inputdev); | |
589 | if (error) { | |
590 | pr_err("Unable to register input device\n"); | |
591 | goto err_free_keymap; | |
592 | } | |
593 | ||
8693ae84 | 594 | priv->inputdev = inputdev; |
f63409ae IP |
595 | return 0; |
596 | ||
597 | err_free_keymap: | |
598 | sparse_keymap_free(inputdev); | |
599 | err_free_dev: | |
600 | input_free_device(inputdev); | |
601 | return error; | |
602 | } | |
603 | ||
7451a55a | 604 | static void ideapad_input_exit(struct ideapad_private *priv) |
f63409ae | 605 | { |
8693ae84 IP |
606 | sparse_keymap_free(priv->inputdev); |
607 | input_unregister_device(priv->inputdev); | |
608 | priv->inputdev = NULL; | |
f63409ae IP |
609 | } |
610 | ||
8693ae84 IP |
611 | static void ideapad_input_report(struct ideapad_private *priv, |
612 | unsigned long scancode) | |
f63409ae | 613 | { |
8693ae84 | 614 | sparse_keymap_report_event(priv->inputdev, scancode, 1, true); |
f63409ae | 615 | } |
f63409ae | 616 | |
f43d9ec0 IP |
617 | static void ideapad_input_novokey(struct ideapad_private *priv) |
618 | { | |
619 | unsigned long long_pressed; | |
620 | ||
331e0ea2 | 621 | if (read_ec_data(priv->adev->handle, VPCCMD_R_NOVO, &long_pressed)) |
f43d9ec0 IP |
622 | return; |
623 | if (long_pressed) | |
624 | ideapad_input_report(priv, 17); | |
625 | else | |
626 | ideapad_input_report(priv, 16); | |
627 | } | |
628 | ||
296f9fe0 MM |
629 | static void ideapad_check_special_buttons(struct ideapad_private *priv) |
630 | { | |
631 | unsigned long bit, value; | |
632 | ||
331e0ea2 | 633 | read_ec_data(priv->adev->handle, VPCCMD_R_SPECIAL_BUTTONS, &value); |
296f9fe0 MM |
634 | |
635 | for (bit = 0; bit < 16; bit++) { | |
636 | if (test_bit(bit, &value)) { | |
637 | switch (bit) { | |
a1ec56ed MM |
638 | case 0: /* Z580 */ |
639 | case 6: /* Z570 */ | |
296f9fe0 MM |
640 | /* Thermal Management button */ |
641 | ideapad_input_report(priv, 65); | |
642 | break; | |
643 | case 1: | |
644 | /* OneKey Theater button */ | |
645 | ideapad_input_report(priv, 64); | |
646 | break; | |
a1ec56ed MM |
647 | default: |
648 | pr_info("Unknown special button: %lu\n", bit); | |
649 | break; | |
296f9fe0 MM |
650 | } |
651 | } | |
652 | } | |
653 | } | |
654 | ||
a4ecbb8a IP |
655 | /* |
656 | * backlight | |
657 | */ | |
658 | static int ideapad_backlight_get_brightness(struct backlight_device *blightdev) | |
659 | { | |
331e0ea2 | 660 | struct ideapad_private *priv = bl_get_data(blightdev); |
a4ecbb8a IP |
661 | unsigned long now; |
662 | ||
331e0ea2 ZR |
663 | if (!priv) |
664 | return -EINVAL; | |
665 | ||
666 | if (read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now)) | |
a4ecbb8a IP |
667 | return -EIO; |
668 | return now; | |
669 | } | |
670 | ||
671 | static int ideapad_backlight_update_status(struct backlight_device *blightdev) | |
672 | { | |
331e0ea2 ZR |
673 | struct ideapad_private *priv = bl_get_data(blightdev); |
674 | ||
675 | if (!priv) | |
676 | return -EINVAL; | |
677 | ||
678 | if (write_ec_cmd(priv->adev->handle, VPCCMD_W_BL, | |
2be1dc21 | 679 | blightdev->props.brightness)) |
a4ecbb8a | 680 | return -EIO; |
331e0ea2 | 681 | if (write_ec_cmd(priv->adev->handle, VPCCMD_W_BL_POWER, |
a4ecbb8a IP |
682 | blightdev->props.power == FB_BLANK_POWERDOWN ? 0 : 1)) |
683 | return -EIO; | |
684 | ||
685 | return 0; | |
686 | } | |
687 | ||
688 | static const struct backlight_ops ideapad_backlight_ops = { | |
689 | .get_brightness = ideapad_backlight_get_brightness, | |
690 | .update_status = ideapad_backlight_update_status, | |
691 | }; | |
692 | ||
693 | static int ideapad_backlight_init(struct ideapad_private *priv) | |
694 | { | |
695 | struct backlight_device *blightdev; | |
696 | struct backlight_properties props; | |
697 | unsigned long max, now, power; | |
698 | ||
331e0ea2 | 699 | if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_MAX, &max)) |
a4ecbb8a | 700 | return -EIO; |
331e0ea2 | 701 | if (read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now)) |
a4ecbb8a | 702 | return -EIO; |
331e0ea2 | 703 | if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &power)) |
a4ecbb8a IP |
704 | return -EIO; |
705 | ||
706 | memset(&props, 0, sizeof(struct backlight_properties)); | |
707 | props.max_brightness = max; | |
708 | props.type = BACKLIGHT_PLATFORM; | |
709 | blightdev = backlight_device_register("ideapad", | |
710 | &priv->platform_device->dev, | |
711 | priv, | |
712 | &ideapad_backlight_ops, | |
713 | &props); | |
714 | if (IS_ERR(blightdev)) { | |
715 | pr_err("Could not register backlight device\n"); | |
716 | return PTR_ERR(blightdev); | |
717 | } | |
718 | ||
719 | priv->blightdev = blightdev; | |
720 | blightdev->props.brightness = now; | |
721 | blightdev->props.power = power ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; | |
722 | backlight_update_status(blightdev); | |
723 | ||
724 | return 0; | |
725 | } | |
726 | ||
727 | static void ideapad_backlight_exit(struct ideapad_private *priv) | |
728 | { | |
729 | if (priv->blightdev) | |
730 | backlight_device_unregister(priv->blightdev); | |
731 | priv->blightdev = NULL; | |
732 | } | |
733 | ||
734 | static void ideapad_backlight_notify_power(struct ideapad_private *priv) | |
735 | { | |
736 | unsigned long power; | |
737 | struct backlight_device *blightdev = priv->blightdev; | |
738 | ||
d4afc775 RB |
739 | if (!blightdev) |
740 | return; | |
331e0ea2 | 741 | if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &power)) |
a4ecbb8a IP |
742 | return; |
743 | blightdev->props.power = power ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; | |
744 | } | |
745 | ||
746 | static void ideapad_backlight_notify_brightness(struct ideapad_private *priv) | |
747 | { | |
748 | unsigned long now; | |
749 | ||
750 | /* if we control brightness via acpi video driver */ | |
751 | if (priv->blightdev == NULL) { | |
331e0ea2 | 752 | read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now); |
a4ecbb8a IP |
753 | return; |
754 | } | |
755 | ||
756 | backlight_force_update(priv->blightdev, BACKLIGHT_UPDATE_HOTKEY); | |
757 | } | |
758 | ||
a4b5a279 IP |
759 | /* |
760 | * module init/exit | |
761 | */ | |
75a11f11 | 762 | static void ideapad_sync_touchpad_state(struct ideapad_private *priv) |
07a4a4fc | 763 | { |
07a4a4fc MM |
764 | unsigned long value; |
765 | ||
766 | /* Without reading from EC touchpad LED doesn't switch state */ | |
75a11f11 | 767 | if (!read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value)) { |
07a4a4fc MM |
768 | /* Some IdeaPads don't really turn off touchpad - they only |
769 | * switch the LED state. We (de)activate KBC AUX port to turn | |
770 | * touchpad off and on. We send KEY_TOUCHPAD_OFF and | |
771 | * KEY_TOUCHPAD_ON to not to get out of sync with LED */ | |
772 | unsigned char param; | |
773 | i8042_command(¶m, value ? I8042_CMD_AUX_ENABLE : | |
774 | I8042_CMD_AUX_DISABLE); | |
775 | ideapad_input_report(priv, value ? 67 : 66); | |
776 | } | |
777 | } | |
778 | ||
b5c37b79 ZR |
779 | static void ideapad_acpi_notify(acpi_handle handle, u32 event, void *data) |
780 | { | |
781 | struct ideapad_private *priv = data; | |
782 | unsigned long vpc1, vpc2, vpc_bit; | |
783 | ||
784 | if (read_ec_data(handle, VPCCMD_R_VPC1, &vpc1)) | |
785 | return; | |
786 | if (read_ec_data(handle, VPCCMD_R_VPC2, &vpc2)) | |
787 | return; | |
788 | ||
789 | vpc1 = (vpc2 << 8) | vpc1; | |
790 | for (vpc_bit = 0; vpc_bit < 16; vpc_bit++) { | |
791 | if (test_bit(vpc_bit, &vpc1)) { | |
792 | switch (vpc_bit) { | |
793 | case 9: | |
794 | ideapad_sync_rfk_state(priv); | |
795 | break; | |
796 | case 13: | |
797 | case 11: | |
798 | case 7: | |
799 | case 6: | |
800 | ideapad_input_report(priv, vpc_bit); | |
801 | break; | |
802 | case 5: | |
803 | ideapad_sync_touchpad_state(priv); | |
804 | break; | |
805 | case 4: | |
806 | ideapad_backlight_notify_brightness(priv); | |
807 | break; | |
808 | case 3: | |
809 | ideapad_input_novokey(priv); | |
810 | break; | |
811 | case 2: | |
812 | ideapad_backlight_notify_power(priv); | |
813 | break; | |
814 | case 0: | |
815 | ideapad_check_special_buttons(priv); | |
816 | break; | |
817 | default: | |
818 | pr_info("Unknown event: %lu\n", vpc_bit); | |
819 | } | |
820 | } | |
821 | } | |
822 | } | |
823 | ||
85093f79 HG |
824 | /* Blacklist for devices where the ideapad rfkill interface does not work */ |
825 | static struct dmi_system_id rfkill_blacklist[] = { | |
826 | /* The Lenovo Yoga 2 11 always reports everything as blocked */ | |
827 | { | |
828 | .ident = "Lenovo Yoga 2 11", | |
829 | .matches = { | |
830 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
831 | DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo Yoga 2 11"), | |
832 | }, | |
833 | }, | |
834 | {} | |
835 | }; | |
836 | ||
b5c37b79 | 837 | static int ideapad_acpi_add(struct platform_device *pdev) |
58ac7aa0 | 838 | { |
3371f481 | 839 | int ret, i; |
57f9616b | 840 | int cfg; |
ce326329 | 841 | struct ideapad_private *priv; |
b5c37b79 ZR |
842 | struct acpi_device *adev; |
843 | ||
844 | ret = acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev); | |
845 | if (ret) | |
846 | return -ENODEV; | |
58ac7aa0 | 847 | |
469f6434 | 848 | if (read_method_int(adev->handle, "_CFG", &cfg)) |
6f8371c0 IP |
849 | return -ENODEV; |
850 | ||
b3facd7b | 851 | priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); |
ce326329 DW |
852 | if (!priv) |
853 | return -ENOMEM; | |
b5c37b79 ZR |
854 | |
855 | dev_set_drvdata(&pdev->dev, priv); | |
3371f481 | 856 | priv->cfg = cfg; |
469f6434 | 857 | priv->adev = adev; |
b5c37b79 | 858 | priv->platform_device = pdev; |
98ee6919 | 859 | |
b5c37b79 | 860 | ret = ideapad_sysfs_init(priv); |
98ee6919 | 861 | if (ret) |
b3facd7b | 862 | return ret; |
ce326329 | 863 | |
773e3206 IP |
864 | ret = ideapad_debugfs_init(priv); |
865 | if (ret) | |
866 | goto debugfs_failed; | |
867 | ||
8693ae84 | 868 | ret = ideapad_input_init(priv); |
f63409ae IP |
869 | if (ret) |
870 | goto input_failed; | |
871 | ||
85093f79 HG |
872 | if (!dmi_check_system(rfkill_blacklist)) { |
873 | for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) | |
874 | if (test_bit(ideapad_rfk_data[i].cfgbit, &priv->cfg)) | |
875 | ideapad_register_rfkill(priv, i); | |
58ac7aa0 | 876 | } |
923de84a | 877 | ideapad_sync_rfk_state(priv); |
75a11f11 | 878 | ideapad_sync_touchpad_state(priv); |
c9f718d0 | 879 | |
a4ecbb8a IP |
880 | if (!acpi_video_backlight_support()) { |
881 | ret = ideapad_backlight_init(priv); | |
882 | if (ret && ret != -ENODEV) | |
883 | goto backlight_failed; | |
884 | } | |
b5c37b79 ZR |
885 | ret = acpi_install_notify_handler(adev->handle, |
886 | ACPI_DEVICE_NOTIFY, ideapad_acpi_notify, priv); | |
887 | if (ret) | |
888 | goto notification_failed; | |
a4ecbb8a | 889 | |
58ac7aa0 | 890 | return 0; |
b5c37b79 ZR |
891 | notification_failed: |
892 | ideapad_backlight_exit(priv); | |
a4ecbb8a IP |
893 | backlight_failed: |
894 | for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) | |
75a11f11 | 895 | ideapad_unregister_rfkill(priv, i); |
7451a55a | 896 | ideapad_input_exit(priv); |
f63409ae | 897 | input_failed: |
773e3206 IP |
898 | ideapad_debugfs_exit(priv); |
899 | debugfs_failed: | |
b5c37b79 | 900 | ideapad_sysfs_exit(priv); |
98ee6919 | 901 | return ret; |
58ac7aa0 DW |
902 | } |
903 | ||
b5c37b79 | 904 | static int ideapad_acpi_remove(struct platform_device *pdev) |
58ac7aa0 | 905 | { |
b5c37b79 | 906 | struct ideapad_private *priv = dev_get_drvdata(&pdev->dev); |
58ac7aa0 | 907 | int i; |
ce326329 | 908 | |
b5c37b79 ZR |
909 | acpi_remove_notify_handler(priv->adev->handle, |
910 | ACPI_DEVICE_NOTIFY, ideapad_acpi_notify); | |
a4ecbb8a | 911 | ideapad_backlight_exit(priv); |
c1f73658 | 912 | for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) |
75a11f11 | 913 | ideapad_unregister_rfkill(priv, i); |
8693ae84 | 914 | ideapad_input_exit(priv); |
773e3206 | 915 | ideapad_debugfs_exit(priv); |
b5c37b79 ZR |
916 | ideapad_sysfs_exit(priv); |
917 | dev_set_drvdata(&pdev->dev, NULL); | |
c9f718d0 | 918 | |
58ac7aa0 DW |
919 | return 0; |
920 | } | |
921 | ||
11fa8da5 | 922 | #ifdef CONFIG_PM_SLEEP |
07a4a4fc MM |
923 | static int ideapad_acpi_resume(struct device *device) |
924 | { | |
75a11f11 ZR |
925 | struct ideapad_private *priv; |
926 | ||
927 | if (!device) | |
928 | return -EINVAL; | |
929 | priv = dev_get_drvdata(device); | |
930 | ||
931 | ideapad_sync_rfk_state(priv); | |
932 | ideapad_sync_touchpad_state(priv); | |
07a4a4fc MM |
933 | return 0; |
934 | } | |
11fa8da5 | 935 | #endif |
b5c37b79 | 936 | static SIMPLE_DEV_PM_OPS(ideapad_pm, NULL, ideapad_acpi_resume); |
07a4a4fc | 937 | |
b5c37b79 ZR |
938 | static const struct acpi_device_id ideapad_device_ids[] = { |
939 | { "VPC2004", 0}, | |
940 | { "", 0}, | |
58ac7aa0 | 941 | }; |
b5c37b79 ZR |
942 | MODULE_DEVICE_TABLE(acpi, ideapad_device_ids); |
943 | ||
944 | static struct platform_driver ideapad_acpi_driver = { | |
945 | .probe = ideapad_acpi_add, | |
946 | .remove = ideapad_acpi_remove, | |
947 | .driver = { | |
948 | .name = "ideapad_acpi", | |
949 | .owner = THIS_MODULE, | |
950 | .pm = &ideapad_pm, | |
951 | .acpi_match_table = ACPI_PTR(ideapad_device_ids), | |
952 | }, | |
953 | }; | |
954 | ||
955 | module_platform_driver(ideapad_acpi_driver); | |
58ac7aa0 DW |
956 | |
957 | MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); | |
958 | MODULE_DESCRIPTION("IdeaPad ACPI Extras"); | |
959 | MODULE_LICENSE("GPL"); |