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> | |
58ac7aa0 | 37 | |
c1f73658 | 38 | #define IDEAPAD_RFKILL_DEV_NUM (3) |
58ac7aa0 | 39 | |
3371f481 IP |
40 | #define CFG_BT_BIT (16) |
41 | #define CFG_3G_BIT (17) | |
42 | #define CFG_WIFI_BIT (18) | |
a84511f7 | 43 | #define CFG_CAMERA_BIT (19) |
3371f481 | 44 | |
2be1dc21 IP |
45 | enum { |
46 | VPCCMD_R_VPC1 = 0x10, | |
47 | VPCCMD_R_BL_MAX, | |
48 | VPCCMD_R_BL, | |
49 | VPCCMD_W_BL, | |
50 | VPCCMD_R_WIFI, | |
51 | VPCCMD_W_WIFI, | |
52 | VPCCMD_R_BT, | |
53 | VPCCMD_W_BT, | |
54 | VPCCMD_R_BL_POWER, | |
55 | VPCCMD_R_NOVO, | |
56 | VPCCMD_R_VPC2, | |
57 | VPCCMD_R_TOUCHPAD, | |
58 | VPCCMD_W_TOUCHPAD, | |
59 | VPCCMD_R_CAMERA, | |
60 | VPCCMD_W_CAMERA, | |
61 | VPCCMD_R_3G, | |
62 | VPCCMD_W_3G, | |
63 | VPCCMD_R_ODD, /* 0x21 */ | |
64 | VPCCMD_R_RF = 0x23, | |
65 | VPCCMD_W_RF, | |
66 | VPCCMD_W_BL_POWER = 0x33, | |
67 | }; | |
68 | ||
ce326329 | 69 | struct ideapad_private { |
c1f73658 | 70 | struct rfkill *rfk[IDEAPAD_RFKILL_DEV_NUM]; |
98ee6919 | 71 | struct platform_device *platform_device; |
f63409ae | 72 | struct input_dev *inputdev; |
a4ecbb8a | 73 | struct backlight_device *blightdev; |
3371f481 | 74 | unsigned long cfg; |
58ac7aa0 DW |
75 | }; |
76 | ||
c1f73658 | 77 | static acpi_handle ideapad_handle; |
bfa97b7d IP |
78 | static bool no_bt_rfkill; |
79 | module_param(no_bt_rfkill, bool, 0444); | |
80 | MODULE_PARM_DESC(no_bt_rfkill, "No rfkill for bluetooth."); | |
81 | ||
6a09f21d IP |
82 | /* |
83 | * ACPI Helpers | |
84 | */ | |
85 | #define IDEAPAD_EC_TIMEOUT (100) /* in ms */ | |
86 | ||
87 | static int read_method_int(acpi_handle handle, const char *method, int *val) | |
88 | { | |
89 | acpi_status status; | |
90 | unsigned long long result; | |
91 | ||
92 | status = acpi_evaluate_integer(handle, (char *)method, NULL, &result); | |
93 | if (ACPI_FAILURE(status)) { | |
94 | *val = -1; | |
95 | return -1; | |
96 | } else { | |
97 | *val = result; | |
98 | return 0; | |
99 | } | |
100 | } | |
101 | ||
102 | static int method_vpcr(acpi_handle handle, int cmd, int *ret) | |
103 | { | |
104 | acpi_status status; | |
105 | unsigned long long result; | |
106 | struct acpi_object_list params; | |
107 | union acpi_object in_obj; | |
108 | ||
109 | params.count = 1; | |
110 | params.pointer = &in_obj; | |
111 | in_obj.type = ACPI_TYPE_INTEGER; | |
112 | in_obj.integer.value = cmd; | |
113 | ||
114 | status = acpi_evaluate_integer(handle, "VPCR", ¶ms, &result); | |
115 | ||
116 | if (ACPI_FAILURE(status)) { | |
117 | *ret = -1; | |
118 | return -1; | |
119 | } else { | |
120 | *ret = result; | |
121 | return 0; | |
122 | } | |
123 | } | |
124 | ||
125 | static int method_vpcw(acpi_handle handle, int cmd, int data) | |
126 | { | |
127 | struct acpi_object_list params; | |
128 | union acpi_object in_obj[2]; | |
129 | acpi_status status; | |
130 | ||
131 | params.count = 2; | |
132 | params.pointer = in_obj; | |
133 | in_obj[0].type = ACPI_TYPE_INTEGER; | |
134 | in_obj[0].integer.value = cmd; | |
135 | in_obj[1].type = ACPI_TYPE_INTEGER; | |
136 | in_obj[1].integer.value = data; | |
137 | ||
138 | status = acpi_evaluate_object(handle, "VPCW", ¶ms, NULL); | |
139 | if (status != AE_OK) | |
140 | return -1; | |
141 | return 0; | |
142 | } | |
143 | ||
144 | static int read_ec_data(acpi_handle handle, int cmd, unsigned long *data) | |
145 | { | |
146 | int val; | |
147 | unsigned long int end_jiffies; | |
148 | ||
149 | if (method_vpcw(handle, 1, cmd)) | |
150 | return -1; | |
151 | ||
152 | for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1; | |
153 | time_before(jiffies, end_jiffies);) { | |
154 | schedule(); | |
155 | if (method_vpcr(handle, 1, &val)) | |
156 | return -1; | |
157 | if (val == 0) { | |
158 | if (method_vpcr(handle, 0, &val)) | |
159 | return -1; | |
160 | *data = val; | |
161 | return 0; | |
162 | } | |
163 | } | |
164 | pr_err("timeout in read_ec_cmd\n"); | |
165 | return -1; | |
166 | } | |
167 | ||
168 | static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data) | |
169 | { | |
170 | int val; | |
171 | unsigned long int end_jiffies; | |
172 | ||
173 | if (method_vpcw(handle, 0, data)) | |
174 | return -1; | |
175 | if (method_vpcw(handle, 1, cmd)) | |
176 | return -1; | |
177 | ||
178 | for (end_jiffies = jiffies+(HZ)*IDEAPAD_EC_TIMEOUT/1000+1; | |
179 | time_before(jiffies, end_jiffies);) { | |
180 | schedule(); | |
181 | if (method_vpcr(handle, 1, &val)) | |
182 | return -1; | |
183 | if (val == 0) | |
184 | return 0; | |
185 | } | |
186 | pr_err("timeout in write_ec_cmd\n"); | |
187 | return -1; | |
188 | } | |
6a09f21d | 189 | |
a4b5a279 | 190 | /* |
3371f481 | 191 | * sysfs |
a4b5a279 | 192 | */ |
58ac7aa0 DW |
193 | static ssize_t show_ideapad_cam(struct device *dev, |
194 | struct device_attribute *attr, | |
195 | char *buf) | |
196 | { | |
26c81d5c | 197 | unsigned long result; |
58ac7aa0 | 198 | |
2be1dc21 | 199 | if (read_ec_data(ideapad_handle, VPCCMD_R_CAMERA, &result)) |
26c81d5c IP |
200 | return sprintf(buf, "-1\n"); |
201 | return sprintf(buf, "%lu\n", result); | |
58ac7aa0 DW |
202 | } |
203 | ||
204 | static ssize_t store_ideapad_cam(struct device *dev, | |
205 | struct device_attribute *attr, | |
206 | const char *buf, size_t count) | |
207 | { | |
208 | int ret, state; | |
209 | ||
210 | if (!count) | |
211 | return 0; | |
212 | if (sscanf(buf, "%i", &state) != 1) | |
213 | return -EINVAL; | |
2be1dc21 | 214 | ret = write_ec_cmd(ideapad_handle, VPCCMD_W_CAMERA, state); |
58ac7aa0 DW |
215 | if (ret < 0) |
216 | return ret; | |
217 | return count; | |
218 | } | |
219 | ||
220 | static DEVICE_ATTR(camera_power, 0644, show_ideapad_cam, store_ideapad_cam); | |
221 | ||
3371f481 IP |
222 | static ssize_t show_ideapad_cfg(struct device *dev, |
223 | struct device_attribute *attr, | |
224 | char *buf) | |
225 | { | |
226 | struct ideapad_private *priv = dev_get_drvdata(dev); | |
227 | ||
228 | return sprintf(buf, "0x%.8lX\n", priv->cfg); | |
229 | } | |
230 | ||
231 | static DEVICE_ATTR(cfg, 0444, show_ideapad_cfg, NULL); | |
232 | ||
233 | static struct attribute *ideapad_attributes[] = { | |
234 | &dev_attr_camera_power.attr, | |
235 | &dev_attr_cfg.attr, | |
236 | NULL | |
237 | }; | |
238 | ||
a84511f7 IP |
239 | static mode_t ideapad_is_visible(struct kobject *kobj, |
240 | struct attribute *attr, | |
241 | int idx) | |
242 | { | |
243 | struct device *dev = container_of(kobj, struct device, kobj); | |
244 | struct ideapad_private *priv = dev_get_drvdata(dev); | |
245 | bool supported; | |
246 | ||
247 | if (attr == &dev_attr_camera_power.attr) | |
248 | supported = test_bit(CFG_CAMERA_BIT, &(priv->cfg)); | |
249 | else | |
250 | supported = true; | |
251 | ||
252 | return supported ? attr->mode : 0; | |
253 | } | |
254 | ||
3371f481 | 255 | static struct attribute_group ideapad_attribute_group = { |
a84511f7 | 256 | .is_visible = ideapad_is_visible, |
3371f481 IP |
257 | .attrs = ideapad_attributes |
258 | }; | |
259 | ||
a4b5a279 IP |
260 | /* |
261 | * Rfkill | |
262 | */ | |
c1f73658 IP |
263 | struct ideapad_rfk_data { |
264 | char *name; | |
265 | int cfgbit; | |
266 | int opcode; | |
267 | int type; | |
268 | }; | |
269 | ||
270 | const struct ideapad_rfk_data ideapad_rfk_data[] = { | |
2be1dc21 IP |
271 | { "ideapad_wlan", CFG_WIFI_BIT, VPCCMD_W_WIFI, RFKILL_TYPE_WLAN }, |
272 | { "ideapad_bluetooth", CFG_BT_BIT, VPCCMD_W_BT, RFKILL_TYPE_BLUETOOTH }, | |
273 | { "ideapad_3g", CFG_3G_BIT, VPCCMD_W_3G, RFKILL_TYPE_WWAN }, | |
c1f73658 IP |
274 | }; |
275 | ||
58ac7aa0 DW |
276 | static int ideapad_rfk_set(void *data, bool blocked) |
277 | { | |
c1f73658 | 278 | unsigned long opcode = (unsigned long)data; |
fa08359e | 279 | |
c1f73658 | 280 | return write_ec_cmd(ideapad_handle, opcode, !blocked); |
58ac7aa0 DW |
281 | } |
282 | ||
283 | static struct rfkill_ops ideapad_rfk_ops = { | |
284 | .set_block = ideapad_rfk_set, | |
285 | }; | |
286 | ||
923de84a | 287 | static void ideapad_sync_rfk_state(struct ideapad_private *priv) |
58ac7aa0 | 288 | { |
2b7266bd | 289 | unsigned long hw_blocked; |
58ac7aa0 DW |
290 | int i; |
291 | ||
2be1dc21 | 292 | if (read_ec_data(ideapad_handle, VPCCMD_R_RF, &hw_blocked)) |
58ac7aa0 | 293 | return; |
2b7266bd | 294 | hw_blocked = !hw_blocked; |
58ac7aa0 | 295 | |
c1f73658 | 296 | for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) |
ce326329 | 297 | if (priv->rfk[i]) |
2b7266bd | 298 | rfkill_set_hw_state(priv->rfk[i], hw_blocked); |
58ac7aa0 DW |
299 | } |
300 | ||
a4b5a279 IP |
301 | static int __devinit ideapad_register_rfkill(struct acpi_device *adevice, |
302 | int dev) | |
58ac7aa0 | 303 | { |
ce326329 | 304 | struct ideapad_private *priv = dev_get_drvdata(&adevice->dev); |
58ac7aa0 | 305 | int ret; |
2b7266bd | 306 | unsigned long sw_blocked; |
58ac7aa0 | 307 | |
bfa97b7d IP |
308 | if (no_bt_rfkill && |
309 | (ideapad_rfk_data[dev].type == RFKILL_TYPE_BLUETOOTH)) { | |
310 | /* Force to enable bluetooth when no_bt_rfkill=1 */ | |
c1f73658 | 311 | write_ec_cmd(ideapad_handle, |
bfa97b7d IP |
312 | ideapad_rfk_data[dev].opcode, 1); |
313 | return 0; | |
314 | } | |
315 | ||
2b7266bd IP |
316 | priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name, &adevice->dev, |
317 | ideapad_rfk_data[dev].type, &ideapad_rfk_ops, | |
ce326329 DW |
318 | (void *)(long)dev); |
319 | if (!priv->rfk[dev]) | |
58ac7aa0 DW |
320 | return -ENOMEM; |
321 | ||
c1f73658 | 322 | if (read_ec_data(ideapad_handle, ideapad_rfk_data[dev].opcode-1, |
2b7266bd IP |
323 | &sw_blocked)) { |
324 | rfkill_init_sw_state(priv->rfk[dev], 0); | |
325 | } else { | |
326 | sw_blocked = !sw_blocked; | |
327 | rfkill_init_sw_state(priv->rfk[dev], sw_blocked); | |
328 | } | |
329 | ||
ce326329 | 330 | ret = rfkill_register(priv->rfk[dev]); |
58ac7aa0 | 331 | if (ret) { |
ce326329 | 332 | rfkill_destroy(priv->rfk[dev]); |
58ac7aa0 DW |
333 | return ret; |
334 | } | |
335 | return 0; | |
336 | } | |
337 | ||
a4ecbb8a | 338 | static void ideapad_unregister_rfkill(struct acpi_device *adevice, int dev) |
58ac7aa0 | 339 | { |
ce326329 DW |
340 | struct ideapad_private *priv = dev_get_drvdata(&adevice->dev); |
341 | ||
342 | if (!priv->rfk[dev]) | |
58ac7aa0 DW |
343 | return; |
344 | ||
ce326329 DW |
345 | rfkill_unregister(priv->rfk[dev]); |
346 | rfkill_destroy(priv->rfk[dev]); | |
58ac7aa0 DW |
347 | } |
348 | ||
98ee6919 IP |
349 | /* |
350 | * Platform device | |
351 | */ | |
8693ae84 | 352 | static int __devinit ideapad_platform_init(struct ideapad_private *priv) |
98ee6919 IP |
353 | { |
354 | int result; | |
355 | ||
8693ae84 IP |
356 | priv->platform_device = platform_device_alloc("ideapad", -1); |
357 | if (!priv->platform_device) | |
98ee6919 | 358 | return -ENOMEM; |
8693ae84 | 359 | platform_set_drvdata(priv->platform_device, priv); |
98ee6919 | 360 | |
8693ae84 | 361 | result = platform_device_add(priv->platform_device); |
98ee6919 IP |
362 | if (result) |
363 | goto fail_platform_device; | |
364 | ||
8693ae84 | 365 | result = sysfs_create_group(&priv->platform_device->dev.kobj, |
c9f718d0 IP |
366 | &ideapad_attribute_group); |
367 | if (result) | |
368 | goto fail_sysfs; | |
98ee6919 IP |
369 | return 0; |
370 | ||
c9f718d0 | 371 | fail_sysfs: |
8693ae84 | 372 | platform_device_del(priv->platform_device); |
98ee6919 | 373 | fail_platform_device: |
8693ae84 | 374 | platform_device_put(priv->platform_device); |
98ee6919 IP |
375 | return result; |
376 | } | |
377 | ||
8693ae84 | 378 | static void ideapad_platform_exit(struct ideapad_private *priv) |
98ee6919 | 379 | { |
8693ae84 | 380 | sysfs_remove_group(&priv->platform_device->dev.kobj, |
c9f718d0 | 381 | &ideapad_attribute_group); |
8693ae84 | 382 | platform_device_unregister(priv->platform_device); |
98ee6919 | 383 | } |
98ee6919 | 384 | |
f63409ae IP |
385 | /* |
386 | * input device | |
387 | */ | |
388 | static const struct key_entry ideapad_keymap[] = { | |
389 | { KE_KEY, 0x06, { KEY_SWITCHVIDEOMODE } }, | |
390 | { KE_KEY, 0x0D, { KEY_WLAN } }, | |
391 | { KE_END, 0 }, | |
392 | }; | |
393 | ||
8693ae84 | 394 | static int __devinit ideapad_input_init(struct ideapad_private *priv) |
f63409ae IP |
395 | { |
396 | struct input_dev *inputdev; | |
397 | int error; | |
398 | ||
399 | inputdev = input_allocate_device(); | |
400 | if (!inputdev) { | |
401 | pr_info("Unable to allocate input device\n"); | |
402 | return -ENOMEM; | |
403 | } | |
404 | ||
405 | inputdev->name = "Ideapad extra buttons"; | |
406 | inputdev->phys = "ideapad/input0"; | |
407 | inputdev->id.bustype = BUS_HOST; | |
8693ae84 | 408 | inputdev->dev.parent = &priv->platform_device->dev; |
f63409ae IP |
409 | |
410 | error = sparse_keymap_setup(inputdev, ideapad_keymap, NULL); | |
411 | if (error) { | |
412 | pr_err("Unable to setup input device keymap\n"); | |
413 | goto err_free_dev; | |
414 | } | |
415 | ||
416 | error = input_register_device(inputdev); | |
417 | if (error) { | |
418 | pr_err("Unable to register input device\n"); | |
419 | goto err_free_keymap; | |
420 | } | |
421 | ||
8693ae84 | 422 | priv->inputdev = inputdev; |
f63409ae IP |
423 | return 0; |
424 | ||
425 | err_free_keymap: | |
426 | sparse_keymap_free(inputdev); | |
427 | err_free_dev: | |
428 | input_free_device(inputdev); | |
429 | return error; | |
430 | } | |
431 | ||
7451a55a | 432 | static void ideapad_input_exit(struct ideapad_private *priv) |
f63409ae | 433 | { |
8693ae84 IP |
434 | sparse_keymap_free(priv->inputdev); |
435 | input_unregister_device(priv->inputdev); | |
436 | priv->inputdev = NULL; | |
f63409ae IP |
437 | } |
438 | ||
8693ae84 IP |
439 | static void ideapad_input_report(struct ideapad_private *priv, |
440 | unsigned long scancode) | |
f63409ae | 441 | { |
8693ae84 | 442 | sparse_keymap_report_event(priv->inputdev, scancode, 1, true); |
f63409ae | 443 | } |
f63409ae | 444 | |
a4ecbb8a IP |
445 | /* |
446 | * backlight | |
447 | */ | |
448 | static int ideapad_backlight_get_brightness(struct backlight_device *blightdev) | |
449 | { | |
450 | unsigned long now; | |
451 | ||
2be1dc21 | 452 | if (read_ec_data(ideapad_handle, VPCCMD_R_BL, &now)) |
a4ecbb8a IP |
453 | return -EIO; |
454 | return now; | |
455 | } | |
456 | ||
457 | static int ideapad_backlight_update_status(struct backlight_device *blightdev) | |
458 | { | |
2be1dc21 IP |
459 | if (write_ec_cmd(ideapad_handle, VPCCMD_W_BL, |
460 | blightdev->props.brightness)) | |
a4ecbb8a | 461 | return -EIO; |
2be1dc21 | 462 | if (write_ec_cmd(ideapad_handle, VPCCMD_W_BL_POWER, |
a4ecbb8a IP |
463 | blightdev->props.power == FB_BLANK_POWERDOWN ? 0 : 1)) |
464 | return -EIO; | |
465 | ||
466 | return 0; | |
467 | } | |
468 | ||
469 | static const struct backlight_ops ideapad_backlight_ops = { | |
470 | .get_brightness = ideapad_backlight_get_brightness, | |
471 | .update_status = ideapad_backlight_update_status, | |
472 | }; | |
473 | ||
474 | static int ideapad_backlight_init(struct ideapad_private *priv) | |
475 | { | |
476 | struct backlight_device *blightdev; | |
477 | struct backlight_properties props; | |
478 | unsigned long max, now, power; | |
479 | ||
2be1dc21 | 480 | if (read_ec_data(ideapad_handle, VPCCMD_R_BL_MAX, &max)) |
a4ecbb8a | 481 | return -EIO; |
2be1dc21 | 482 | if (read_ec_data(ideapad_handle, VPCCMD_R_BL, &now)) |
a4ecbb8a | 483 | return -EIO; |
2be1dc21 | 484 | if (read_ec_data(ideapad_handle, VPCCMD_R_BL_POWER, &power)) |
a4ecbb8a IP |
485 | return -EIO; |
486 | ||
487 | memset(&props, 0, sizeof(struct backlight_properties)); | |
488 | props.max_brightness = max; | |
489 | props.type = BACKLIGHT_PLATFORM; | |
490 | blightdev = backlight_device_register("ideapad", | |
491 | &priv->platform_device->dev, | |
492 | priv, | |
493 | &ideapad_backlight_ops, | |
494 | &props); | |
495 | if (IS_ERR(blightdev)) { | |
496 | pr_err("Could not register backlight device\n"); | |
497 | return PTR_ERR(blightdev); | |
498 | } | |
499 | ||
500 | priv->blightdev = blightdev; | |
501 | blightdev->props.brightness = now; | |
502 | blightdev->props.power = power ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; | |
503 | backlight_update_status(blightdev); | |
504 | ||
505 | return 0; | |
506 | } | |
507 | ||
508 | static void ideapad_backlight_exit(struct ideapad_private *priv) | |
509 | { | |
510 | if (priv->blightdev) | |
511 | backlight_device_unregister(priv->blightdev); | |
512 | priv->blightdev = NULL; | |
513 | } | |
514 | ||
515 | static void ideapad_backlight_notify_power(struct ideapad_private *priv) | |
516 | { | |
517 | unsigned long power; | |
518 | struct backlight_device *blightdev = priv->blightdev; | |
519 | ||
d4afc775 RB |
520 | if (!blightdev) |
521 | return; | |
2be1dc21 | 522 | if (read_ec_data(ideapad_handle, VPCCMD_R_BL_POWER, &power)) |
a4ecbb8a IP |
523 | return; |
524 | blightdev->props.power = power ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN; | |
525 | } | |
526 | ||
527 | static void ideapad_backlight_notify_brightness(struct ideapad_private *priv) | |
528 | { | |
529 | unsigned long now; | |
530 | ||
531 | /* if we control brightness via acpi video driver */ | |
532 | if (priv->blightdev == NULL) { | |
2be1dc21 | 533 | read_ec_data(ideapad_handle, VPCCMD_R_BL, &now); |
a4ecbb8a IP |
534 | return; |
535 | } | |
536 | ||
537 | backlight_force_update(priv->blightdev, BACKLIGHT_UPDATE_HOTKEY); | |
538 | } | |
539 | ||
a4b5a279 IP |
540 | /* |
541 | * module init/exit | |
542 | */ | |
58ac7aa0 DW |
543 | static const struct acpi_device_id ideapad_device_ids[] = { |
544 | { "VPC2004", 0}, | |
545 | { "", 0}, | |
546 | }; | |
547 | MODULE_DEVICE_TABLE(acpi, ideapad_device_ids); | |
548 | ||
a4b5a279 | 549 | static int __devinit ideapad_acpi_add(struct acpi_device *adevice) |
58ac7aa0 | 550 | { |
3371f481 IP |
551 | int ret, i; |
552 | unsigned long cfg; | |
ce326329 | 553 | struct ideapad_private *priv; |
58ac7aa0 | 554 | |
3371f481 | 555 | if (read_method_int(adevice->handle, "_CFG", (int *)&cfg)) |
6f8371c0 IP |
556 | return -ENODEV; |
557 | ||
ce326329 DW |
558 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); |
559 | if (!priv) | |
560 | return -ENOMEM; | |
c9f718d0 | 561 | dev_set_drvdata(&adevice->dev, priv); |
c1f73658 | 562 | ideapad_handle = adevice->handle; |
3371f481 | 563 | priv->cfg = cfg; |
98ee6919 | 564 | |
8693ae84 | 565 | ret = ideapad_platform_init(priv); |
98ee6919 IP |
566 | if (ret) |
567 | goto platform_failed; | |
ce326329 | 568 | |
8693ae84 | 569 | ret = ideapad_input_init(priv); |
f63409ae IP |
570 | if (ret) |
571 | goto input_failed; | |
572 | ||
c1f73658 | 573 | for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) { |
3371f481 | 574 | if (test_bit(ideapad_rfk_data[i].cfgbit, &cfg)) |
c9f718d0 | 575 | ideapad_register_rfkill(adevice, i); |
c1f73658 IP |
576 | else |
577 | priv->rfk[i] = NULL; | |
58ac7aa0 | 578 | } |
923de84a | 579 | ideapad_sync_rfk_state(priv); |
c9f718d0 | 580 | |
a4ecbb8a IP |
581 | if (!acpi_video_backlight_support()) { |
582 | ret = ideapad_backlight_init(priv); | |
583 | if (ret && ret != -ENODEV) | |
584 | goto backlight_failed; | |
585 | } | |
586 | ||
58ac7aa0 | 587 | return 0; |
98ee6919 | 588 | |
a4ecbb8a IP |
589 | backlight_failed: |
590 | for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) | |
591 | ideapad_unregister_rfkill(adevice, i); | |
7451a55a | 592 | ideapad_input_exit(priv); |
f63409ae | 593 | input_failed: |
8693ae84 | 594 | ideapad_platform_exit(priv); |
98ee6919 IP |
595 | platform_failed: |
596 | kfree(priv); | |
597 | return ret; | |
58ac7aa0 DW |
598 | } |
599 | ||
a4b5a279 | 600 | static int __devexit ideapad_acpi_remove(struct acpi_device *adevice, int type) |
58ac7aa0 | 601 | { |
ce326329 | 602 | struct ideapad_private *priv = dev_get_drvdata(&adevice->dev); |
58ac7aa0 | 603 | int i; |
ce326329 | 604 | |
a4ecbb8a | 605 | ideapad_backlight_exit(priv); |
c1f73658 | 606 | for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) |
ce326329 | 607 | ideapad_unregister_rfkill(adevice, i); |
8693ae84 IP |
608 | ideapad_input_exit(priv); |
609 | ideapad_platform_exit(priv); | |
ce326329 DW |
610 | dev_set_drvdata(&adevice->dev, NULL); |
611 | kfree(priv); | |
c9f718d0 | 612 | |
58ac7aa0 DW |
613 | return 0; |
614 | } | |
615 | ||
ce326329 | 616 | static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event) |
58ac7aa0 | 617 | { |
8693ae84 | 618 | struct ideapad_private *priv = dev_get_drvdata(&adevice->dev); |
8e7d3543 IP |
619 | acpi_handle handle = adevice->handle; |
620 | unsigned long vpc1, vpc2, vpc_bit; | |
621 | ||
2be1dc21 | 622 | if (read_ec_data(handle, VPCCMD_R_VPC1, &vpc1)) |
8e7d3543 | 623 | return; |
2be1dc21 | 624 | if (read_ec_data(handle, VPCCMD_R_VPC2, &vpc2)) |
8e7d3543 IP |
625 | return; |
626 | ||
627 | vpc1 = (vpc2 << 8) | vpc1; | |
628 | for (vpc_bit = 0; vpc_bit < 16; vpc_bit++) { | |
629 | if (test_bit(vpc_bit, &vpc1)) { | |
a4ecbb8a IP |
630 | switch (vpc_bit) { |
631 | case 9: | |
923de84a | 632 | ideapad_sync_rfk_state(priv); |
a4ecbb8a IP |
633 | break; |
634 | case 4: | |
635 | ideapad_backlight_notify_brightness(priv); | |
636 | break; | |
637 | case 2: | |
638 | ideapad_backlight_notify_power(priv); | |
639 | break; | |
640 | default: | |
8693ae84 | 641 | ideapad_input_report(priv, vpc_bit); |
a4ecbb8a | 642 | } |
8e7d3543 IP |
643 | } |
644 | } | |
58ac7aa0 DW |
645 | } |
646 | ||
647 | static struct acpi_driver ideapad_acpi_driver = { | |
648 | .name = "ideapad_acpi", | |
649 | .class = "IdeaPad", | |
650 | .ids = ideapad_device_ids, | |
651 | .ops.add = ideapad_acpi_add, | |
652 | .ops.remove = ideapad_acpi_remove, | |
653 | .ops.notify = ideapad_acpi_notify, | |
654 | .owner = THIS_MODULE, | |
655 | }; | |
656 | ||
58ac7aa0 DW |
657 | static int __init ideapad_acpi_module_init(void) |
658 | { | |
a4b5a279 | 659 | return acpi_bus_register_driver(&ideapad_acpi_driver); |
58ac7aa0 DW |
660 | } |
661 | ||
58ac7aa0 DW |
662 | static void __exit ideapad_acpi_module_exit(void) |
663 | { | |
664 | acpi_bus_unregister_driver(&ideapad_acpi_driver); | |
58ac7aa0 DW |
665 | } |
666 | ||
667 | MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); | |
668 | MODULE_DESCRIPTION("IdeaPad ACPI Extras"); | |
669 | MODULE_LICENSE("GPL"); | |
670 | ||
671 | module_init(ideapad_acpi_module_init); | |
672 | module_exit(ideapad_acpi_module_exit); |