Commit | Line | Data |
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d1381f45 BL |
1 | /* |
2 | * chromeos_laptop.c - Driver to instantiate Chromebook i2c/smbus devices. | |
3 | * | |
4 | * Author : Benson Leung <bleung@chromium.org> | |
5 | * | |
6 | * Copyright (C) 2012 Google, Inc. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | * | |
22 | */ | |
23 | ||
24 | #include <linux/dmi.h> | |
25 | #include <linux/i2c.h> | |
7f3884f7 | 26 | #include <linux/platform_data/atmel_mxt_ts.h> |
2ef39204 BL |
27 | #include <linux/input.h> |
28 | #include <linux/interrupt.h> | |
d1381f45 | 29 | #include <linux/module.h> |
9ad36924 | 30 | #include <linux/platform_device.h> |
d1381f45 | 31 | |
8e1ad4c4 BL |
32 | #define ATMEL_TP_I2C_ADDR 0x4b |
33 | #define ATMEL_TP_I2C_BL_ADDR 0x25 | |
33a84f8a YS |
34 | #define ATMEL_TS_I2C_ADDR 0x4a |
35 | #define ATMEL_TS_I2C_BL_ADDR 0x26 | |
d1381f45 | 36 | #define CYAPA_TP_I2C_ADDR 0x67 |
9bd9a90b | 37 | #define ELAN_TP_I2C_ADDR 0x15 |
d1381f45 | 38 | #define ISL_ALS_I2C_ADDR 0x44 |
aabf3f44 | 39 | #define TAOS_ALS_I2C_ADDR 0x29 |
d1381f45 | 40 | |
5502486a BL |
41 | #define MAX_I2C_DEVICE_DEFERRALS 5 |
42 | ||
d1381f45 BL |
43 | static struct i2c_client *als; |
44 | static struct i2c_client *tp; | |
33a84f8a | 45 | static struct i2c_client *ts; |
d1381f45 | 46 | |
6d3c1afe | 47 | static const char *i2c_adapter_names[] = { |
d1381f45 | 48 | "SMBus I801 adapter", |
741bf0c7 BL |
49 | "i915 gmbus vga", |
50 | "i915 gmbus panel", | |
ebaf31c4 JN |
51 | "Synopsys DesignWare I2C adapter", |
52 | "Synopsys DesignWare I2C adapter", | |
d1381f45 BL |
53 | }; |
54 | ||
55 | /* Keep this enum consistent with i2c_adapter_names */ | |
56 | enum i2c_adapter_type { | |
57 | I2C_ADAPTER_SMBUS = 0, | |
741bf0c7 BL |
58 | I2C_ADAPTER_VGADDC, |
59 | I2C_ADAPTER_PANEL, | |
da3b0ab7 MW |
60 | I2C_ADAPTER_DESIGNWARE_0, |
61 | I2C_ADAPTER_DESIGNWARE_1, | |
d1381f45 BL |
62 | }; |
63 | ||
5502486a BL |
64 | enum i2c_peripheral_state { |
65 | UNPROBED = 0, | |
66 | PROBED, | |
67 | TIMEDOUT, | |
d1381f45 BL |
68 | }; |
69 | ||
ec199dd5 | 70 | struct i2c_peripheral { |
9ad36924 | 71 | int (*add)(enum i2c_adapter_type type); |
ec199dd5 | 72 | enum i2c_adapter_type type; |
5502486a BL |
73 | enum i2c_peripheral_state state; |
74 | int tries; | |
ec199dd5 AD |
75 | }; |
76 | ||
9bd9a90b | 77 | #define MAX_I2C_PERIPHERALS 4 |
ec199dd5 AD |
78 | |
79 | struct chromeos_laptop { | |
80 | struct i2c_peripheral i2c_peripherals[MAX_I2C_PERIPHERALS]; | |
81 | }; | |
82 | ||
9ad36924 BL |
83 | static struct chromeos_laptop *cros_laptop; |
84 | ||
85 | static struct i2c_board_info cyapa_device = { | |
d1381f45 BL |
86 | I2C_BOARD_INFO("cyapa", CYAPA_TP_I2C_ADDR), |
87 | .flags = I2C_CLIENT_WAKE, | |
88 | }; | |
89 | ||
9bd9a90b BL |
90 | static struct i2c_board_info elantech_device = { |
91 | I2C_BOARD_INFO("elan_i2c", ELAN_TP_I2C_ADDR), | |
92 | .flags = I2C_CLIENT_WAKE, | |
93 | }; | |
94 | ||
9ad36924 | 95 | static struct i2c_board_info isl_als_device = { |
d1381f45 BL |
96 | I2C_BOARD_INFO("isl29018", ISL_ALS_I2C_ADDR), |
97 | }; | |
98 | ||
9ad36924 | 99 | static struct i2c_board_info tsl2583_als_device = { |
8016bcbc BL |
100 | I2C_BOARD_INFO("tsl2583", TAOS_ALS_I2C_ADDR), |
101 | }; | |
102 | ||
9ad36924 | 103 | static struct i2c_board_info tsl2563_als_device = { |
aabf3f44 BL |
104 | I2C_BOARD_INFO("tsl2563", TAOS_ALS_I2C_ADDR), |
105 | }; | |
106 | ||
fb5e4c3e ND |
107 | static int mxt_t19_keys[] = { |
108 | KEY_RESERVED, | |
109 | KEY_RESERVED, | |
110 | KEY_RESERVED, | |
111 | KEY_RESERVED, | |
112 | KEY_RESERVED, | |
113 | BTN_LEFT | |
114 | }; | |
115 | ||
2ef39204 | 116 | static struct mxt_platform_data atmel_224s_tp_platform_data = { |
2ef39204 | 117 | .irqflags = IRQF_TRIGGER_FALLING, |
fb5e4c3e ND |
118 | .t19_num_keys = ARRAY_SIZE(mxt_t19_keys), |
119 | .t19_keymap = mxt_t19_keys, | |
7f3884f7 | 120 | .suspend_mode = MXT_SUSPEND_T9_CTRL, |
2ef39204 BL |
121 | }; |
122 | ||
9ad36924 | 123 | static struct i2c_board_info atmel_224s_tp_device = { |
8e1ad4c4 | 124 | I2C_BOARD_INFO("atmel_mxt_tp", ATMEL_TP_I2C_ADDR), |
2ef39204 | 125 | .platform_data = &atmel_224s_tp_platform_data, |
8e1ad4c4 BL |
126 | .flags = I2C_CLIENT_WAKE, |
127 | }; | |
128 | ||
2ef39204 | 129 | static struct mxt_platform_data atmel_1664s_platform_data = { |
2ef39204 | 130 | .irqflags = IRQF_TRIGGER_FALLING, |
7f3884f7 | 131 | .suspend_mode = MXT_SUSPEND_T9_CTRL, |
2ef39204 BL |
132 | }; |
133 | ||
9ad36924 | 134 | static struct i2c_board_info atmel_1664s_device = { |
33a84f8a | 135 | I2C_BOARD_INFO("atmel_mxt_ts", ATMEL_TS_I2C_ADDR), |
2ef39204 | 136 | .platform_data = &atmel_1664s_platform_data, |
33a84f8a YS |
137 | .flags = I2C_CLIENT_WAKE, |
138 | }; | |
139 | ||
9ad36924 | 140 | static struct i2c_client *__add_probed_i2c_device( |
d1381f45 BL |
141 | const char *name, |
142 | int bus, | |
143 | struct i2c_board_info *info, | |
96cba9b0 | 144 | const unsigned short *alt_addr_list) |
d1381f45 BL |
145 | { |
146 | const struct dmi_device *dmi_dev; | |
147 | const struct dmi_dev_onboard *dev_data; | |
148 | struct i2c_adapter *adapter; | |
96cba9b0 DT |
149 | struct i2c_client *client = NULL; |
150 | const unsigned short addr_list[] = { info->addr, I2C_CLIENT_END }; | |
d1381f45 BL |
151 | |
152 | if (bus < 0) | |
153 | return NULL; | |
154 | /* | |
155 | * If a name is specified, look for irq platform information stashed | |
156 | * in DMI_DEV_TYPE_DEV_ONBOARD by the Chrome OS custom system firmware. | |
157 | */ | |
158 | if (name) { | |
159 | dmi_dev = dmi_find_device(DMI_DEV_TYPE_DEV_ONBOARD, name, NULL); | |
160 | if (!dmi_dev) { | |
161 | pr_err("%s failed to dmi find device %s.\n", | |
162 | __func__, | |
163 | name); | |
164 | return NULL; | |
165 | } | |
166 | dev_data = (struct dmi_dev_onboard *)dmi_dev->device_data; | |
167 | if (!dev_data) { | |
168 | pr_err("%s failed to get data from dmi for %s.\n", | |
169 | __func__, name); | |
170 | return NULL; | |
171 | } | |
172 | info->irq = dev_data->instance; | |
173 | } | |
174 | ||
175 | adapter = i2c_get_adapter(bus); | |
176 | if (!adapter) { | |
177 | pr_err("%s failed to get i2c adapter %d.\n", __func__, bus); | |
178 | return NULL; | |
179 | } | |
180 | ||
96cba9b0 DT |
181 | /* |
182 | * Add the i2c device. If we can't detect it at the primary | |
183 | * address we scan secondary addresses. In any case the client | |
184 | * structure gets assigned primary address. | |
185 | */ | |
186 | client = i2c_new_probed_device(adapter, info, addr_list, NULL); | |
187 | if (!client && alt_addr_list) { | |
188 | struct i2c_board_info dummy_info = { | |
189 | I2C_BOARD_INFO("dummy", info->addr), | |
190 | }; | |
191 | struct i2c_client *dummy; | |
192 | ||
193 | dummy = i2c_new_probed_device(adapter, &dummy_info, | |
194 | alt_addr_list, NULL); | |
195 | if (dummy) { | |
196 | pr_debug("%s %d-%02x is probed at %02x\n", | |
197 | __func__, bus, info->addr, dummy->addr); | |
198 | i2c_unregister_device(dummy); | |
199 | client = i2c_new_device(adapter, info); | |
200 | } | |
201 | } | |
202 | ||
d1381f45 | 203 | if (!client) |
5502486a BL |
204 | pr_notice("%s failed to register device %d-%02x\n", |
205 | __func__, bus, info->addr); | |
d1381f45 BL |
206 | else |
207 | pr_debug("%s added i2c device %d-%02x\n", | |
208 | __func__, bus, info->addr); | |
209 | ||
210 | i2c_put_adapter(adapter); | |
211 | return client; | |
212 | } | |
213 | ||
da3b0ab7 MW |
214 | struct i2c_lookup { |
215 | const char *name; | |
216 | int instance; | |
217 | int n; | |
218 | }; | |
219 | ||
9ad36924 | 220 | static int __find_i2c_adap(struct device *dev, void *data) |
d1381f45 | 221 | { |
da3b0ab7 | 222 | struct i2c_lookup *lookup = data; |
d1381f45 BL |
223 | static const char *prefix = "i2c-"; |
224 | struct i2c_adapter *adapter; | |
49c68a21 | 225 | |
d1381f45 BL |
226 | if (strncmp(dev_name(dev), prefix, strlen(prefix)) != 0) |
227 | return 0; | |
228 | adapter = to_i2c_adapter(dev); | |
da3b0ab7 MW |
229 | if (strncmp(adapter->name, lookup->name, strlen(lookup->name)) == 0 && |
230 | lookup->n++ == lookup->instance) | |
231 | return 1; | |
232 | return 0; | |
d1381f45 BL |
233 | } |
234 | ||
9ad36924 | 235 | static int find_i2c_adapter_num(enum i2c_adapter_type type) |
d1381f45 BL |
236 | { |
237 | struct device *dev = NULL; | |
238 | struct i2c_adapter *adapter; | |
da3b0ab7 MW |
239 | struct i2c_lookup lookup; |
240 | ||
241 | memset(&lookup, 0, sizeof(lookup)); | |
242 | lookup.name = i2c_adapter_names[type]; | |
243 | lookup.instance = (type == I2C_ADAPTER_DESIGNWARE_1) ? 1 : 0; | |
244 | ||
d1381f45 | 245 | /* find the adapter by name */ |
da3b0ab7 | 246 | dev = bus_find_device(&i2c_bus_type, NULL, &lookup, __find_i2c_adap); |
d1381f45 | 247 | if (!dev) { |
9ad36924 BL |
248 | /* Adapters may appear later. Deferred probing will retry */ |
249 | pr_notice("%s: i2c adapter %s not found on system.\n", __func__, | |
da3b0ab7 | 250 | lookup.name); |
d1381f45 BL |
251 | return -ENODEV; |
252 | } | |
253 | adapter = to_i2c_adapter(dev); | |
254 | return adapter->nr; | |
255 | } | |
256 | ||
bcaf089c BL |
257 | /* |
258 | * Takes a list of addresses in addrs as such : | |
259 | * { addr1, ... , addrn, I2C_CLIENT_END }; | |
260 | * add_probed_i2c_device will use i2c_new_probed_device | |
261 | * and probe for devices at all of the addresses listed. | |
262 | * Returns NULL if no devices found. | |
263 | * See Documentation/i2c/instantiating-devices for more information. | |
264 | */ | |
9ad36924 | 265 | static struct i2c_client *add_probed_i2c_device( |
bcaf089c BL |
266 | const char *name, |
267 | enum i2c_adapter_type type, | |
268 | struct i2c_board_info *info, | |
269 | const unsigned short *addrs) | |
270 | { | |
271 | return __add_probed_i2c_device(name, | |
272 | find_i2c_adapter_num(type), | |
273 | info, | |
274 | addrs); | |
275 | } | |
276 | ||
d1381f45 BL |
277 | /* |
278 | * Probes for a device at a single address, the one provided by | |
279 | * info->addr. | |
280 | * Returns NULL if no device found. | |
281 | */ | |
9ad36924 | 282 | static struct i2c_client *add_i2c_device(const char *name, |
e7b28845 BL |
283 | enum i2c_adapter_type type, |
284 | struct i2c_board_info *info) | |
d1381f45 | 285 | { |
d1381f45 | 286 | return __add_probed_i2c_device(name, |
e7b28845 | 287 | find_i2c_adapter_num(type), |
d1381f45 | 288 | info, |
96cba9b0 | 289 | NULL); |
d1381f45 BL |
290 | } |
291 | ||
9ad36924 | 292 | static int setup_cyapa_tp(enum i2c_adapter_type type) |
d1381f45 | 293 | { |
9ad36924 BL |
294 | if (tp) |
295 | return 0; | |
296 | ||
ec199dd5 AD |
297 | /* add cyapa touchpad */ |
298 | tp = add_i2c_device("trackpad", type, &cyapa_device); | |
9ad36924 | 299 | return (!tp) ? -EAGAIN : 0; |
d1381f45 BL |
300 | } |
301 | ||
9ad36924 | 302 | static int setup_atmel_224s_tp(enum i2c_adapter_type type) |
8e1ad4c4 BL |
303 | { |
304 | const unsigned short addr_list[] = { ATMEL_TP_I2C_BL_ADDR, | |
8e1ad4c4 | 305 | I2C_CLIENT_END }; |
9ad36924 BL |
306 | if (tp) |
307 | return 0; | |
8e1ad4c4 | 308 | |
ec199dd5 AD |
309 | /* add atmel mxt touchpad */ |
310 | tp = add_probed_i2c_device("trackpad", type, | |
8e1ad4c4 | 311 | &atmel_224s_tp_device, addr_list); |
9ad36924 | 312 | return (!tp) ? -EAGAIN : 0; |
8e1ad4c4 BL |
313 | } |
314 | ||
9bd9a90b BL |
315 | static int setup_elantech_tp(enum i2c_adapter_type type) |
316 | { | |
317 | if (tp) | |
318 | return 0; | |
319 | ||
320 | /* add elantech touchpad */ | |
321 | tp = add_i2c_device("trackpad", type, &elantech_device); | |
322 | return (!tp) ? -EAGAIN : 0; | |
323 | } | |
324 | ||
9ad36924 | 325 | static int setup_atmel_1664s_ts(enum i2c_adapter_type type) |
33a84f8a YS |
326 | { |
327 | const unsigned short addr_list[] = { ATMEL_TS_I2C_BL_ADDR, | |
33a84f8a | 328 | I2C_CLIENT_END }; |
9ad36924 BL |
329 | if (ts) |
330 | return 0; | |
33a84f8a | 331 | |
ec199dd5 AD |
332 | /* add atmel mxt touch device */ |
333 | ts = add_probed_i2c_device("touchscreen", type, | |
33a84f8a | 334 | &atmel_1664s_device, addr_list); |
9ad36924 | 335 | return (!ts) ? -EAGAIN : 0; |
33a84f8a YS |
336 | } |
337 | ||
9ad36924 | 338 | static int setup_isl29018_als(enum i2c_adapter_type type) |
d1381f45 | 339 | { |
9ad36924 BL |
340 | if (als) |
341 | return 0; | |
342 | ||
d1381f45 | 343 | /* add isl29018 light sensor */ |
ec199dd5 | 344 | als = add_i2c_device("lightsensor", type, &isl_als_device); |
9ad36924 | 345 | return (!als) ? -EAGAIN : 0; |
d1381f45 BL |
346 | } |
347 | ||
9ad36924 | 348 | static int setup_tsl2583_als(enum i2c_adapter_type type) |
cc5c3985 | 349 | { |
9ad36924 BL |
350 | if (als) |
351 | return 0; | |
352 | ||
ec199dd5 AD |
353 | /* add tsl2583 light sensor */ |
354 | als = add_i2c_device(NULL, type, &tsl2583_als_device); | |
9ad36924 | 355 | return (!als) ? -EAGAIN : 0; |
cc5c3985 BL |
356 | } |
357 | ||
9ad36924 | 358 | static int setup_tsl2563_als(enum i2c_adapter_type type) |
8016bcbc | 359 | { |
9ad36924 BL |
360 | if (als) |
361 | return 0; | |
362 | ||
ec199dd5 AD |
363 | /* add tsl2563 light sensor */ |
364 | als = add_i2c_device(NULL, type, &tsl2563_als_device); | |
9ad36924 | 365 | return (!als) ? -EAGAIN : 0; |
8016bcbc BL |
366 | } |
367 | ||
9ad36924 | 368 | static int __init chromeos_laptop_dmi_matched(const struct dmi_system_id *id) |
aabf3f44 | 369 | { |
9ad36924 BL |
370 | cros_laptop = (void *)id->driver_data; |
371 | pr_debug("DMI Matched %s.\n", id->ident); | |
ec199dd5 | 372 | |
9ad36924 BL |
373 | /* Indicate to dmi_scan that processing is done. */ |
374 | return 1; | |
375 | } | |
376 | ||
377 | static int chromeos_laptop_probe(struct platform_device *pdev) | |
378 | { | |
379 | int i; | |
380 | int ret = 0; | |
ec199dd5 AD |
381 | |
382 | for (i = 0; i < MAX_I2C_PERIPHERALS; i++) { | |
383 | struct i2c_peripheral *i2c_dev; | |
384 | ||
385 | i2c_dev = &cros_laptop->i2c_peripherals[i]; | |
386 | ||
387 | /* No more peripherals. */ | |
388 | if (i2c_dev->add == NULL) | |
389 | break; | |
390 | ||
5502486a BL |
391 | if (i2c_dev->state == TIMEDOUT || i2c_dev->state == PROBED) |
392 | continue; | |
393 | ||
394 | /* | |
395 | * Check that the i2c adapter is present. | |
396 | * -EPROBE_DEFER if missing as the adapter may appear much | |
397 | * later. | |
398 | */ | |
399 | if (find_i2c_adapter_num(i2c_dev->type) == -ENODEV) { | |
9ad36924 | 400 | ret = -EPROBE_DEFER; |
5502486a BL |
401 | continue; |
402 | } | |
403 | ||
404 | /* Add the device. */ | |
405 | if (i2c_dev->add(i2c_dev->type) == -EAGAIN) { | |
406 | /* | |
407 | * Set -EPROBE_DEFER a limited num of times | |
408 | * if device is not successfully added. | |
409 | */ | |
410 | if (++i2c_dev->tries < MAX_I2C_DEVICE_DEFERRALS) { | |
411 | ret = -EPROBE_DEFER; | |
412 | } else { | |
413 | /* Ran out of tries. */ | |
414 | pr_notice("%s: Ran out of tries for device.\n", | |
415 | __func__); | |
416 | i2c_dev->state = TIMEDOUT; | |
417 | } | |
418 | } else { | |
419 | i2c_dev->state = PROBED; | |
420 | } | |
ec199dd5 AD |
421 | } |
422 | ||
9ad36924 | 423 | return ret; |
aabf3f44 BL |
424 | } |
425 | ||
9ad36924 | 426 | static struct chromeos_laptop samsung_series_5_550 = { |
ec199dd5 AD |
427 | .i2c_peripherals = { |
428 | /* Touchpad. */ | |
429 | { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS }, | |
430 | /* Light Sensor. */ | |
431 | { .add = setup_isl29018_als, I2C_ADAPTER_SMBUS }, | |
432 | }, | |
433 | }; | |
434 | ||
9ad36924 | 435 | static struct chromeos_laptop samsung_series_5 = { |
ec199dd5 AD |
436 | .i2c_peripherals = { |
437 | /* Light Sensor. */ | |
438 | { .add = setup_tsl2583_als, I2C_ADAPTER_SMBUS }, | |
439 | }, | |
440 | }; | |
441 | ||
9ad36924 | 442 | static struct chromeos_laptop chromebook_pixel = { |
ec199dd5 AD |
443 | .i2c_peripherals = { |
444 | /* Touch Screen. */ | |
445 | { .add = setup_atmel_1664s_ts, I2C_ADAPTER_PANEL }, | |
446 | /* Touchpad. */ | |
447 | { .add = setup_atmel_224s_tp, I2C_ADAPTER_VGADDC }, | |
448 | /* Light Sensor. */ | |
449 | { .add = setup_isl29018_als, I2C_ADAPTER_PANEL }, | |
450 | }, | |
451 | }; | |
452 | ||
5ea9567f BL |
453 | static struct chromeos_laptop hp_chromebook_14 = { |
454 | .i2c_peripherals = { | |
455 | /* Touchpad. */ | |
456 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
457 | }, | |
458 | }; | |
459 | ||
0e1e5e59 MH |
460 | static struct chromeos_laptop dell_chromebook_11 = { |
461 | .i2c_peripherals = { | |
462 | /* Touchpad. */ | |
463 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
9e96aa70 CM |
464 | /* Elan Touchpad option. */ |
465 | { .add = setup_elantech_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
0e1e5e59 MH |
466 | }, |
467 | }; | |
468 | ||
963cb6fa GC |
469 | static struct chromeos_laptop toshiba_cb35 = { |
470 | .i2c_peripherals = { | |
471 | /* Touchpad. */ | |
472 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
473 | }, | |
474 | }; | |
475 | ||
9ad36924 | 476 | static struct chromeos_laptop acer_c7_chromebook = { |
ec199dd5 AD |
477 | .i2c_peripherals = { |
478 | /* Touchpad. */ | |
479 | { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS }, | |
480 | }, | |
481 | }; | |
482 | ||
9ad36924 | 483 | static struct chromeos_laptop acer_ac700 = { |
ec199dd5 AD |
484 | .i2c_peripherals = { |
485 | /* Light Sensor. */ | |
486 | { .add = setup_tsl2563_als, I2C_ADAPTER_SMBUS }, | |
487 | }, | |
488 | }; | |
489 | ||
da3b0ab7 MW |
490 | static struct chromeos_laptop acer_c720 = { |
491 | .i2c_peripherals = { | |
b90b3c4a MM |
492 | /* Touchscreen. */ |
493 | { .add = setup_atmel_1664s_ts, I2C_ADAPTER_DESIGNWARE_1 }, | |
da3b0ab7 MW |
494 | /* Touchpad. */ |
495 | { .add = setup_cyapa_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
9bd9a90b BL |
496 | /* Elan Touchpad option. */ |
497 | { .add = setup_elantech_tp, I2C_ADAPTER_DESIGNWARE_0 }, | |
da3b0ab7 MW |
498 | /* Light Sensor. */ |
499 | { .add = setup_isl29018_als, I2C_ADAPTER_DESIGNWARE_1 }, | |
500 | }, | |
501 | }; | |
502 | ||
9ad36924 | 503 | static struct chromeos_laptop hp_pavilion_14_chromebook = { |
ec199dd5 AD |
504 | .i2c_peripherals = { |
505 | /* Touchpad. */ | |
506 | { .add = setup_cyapa_tp, I2C_ADAPTER_SMBUS }, | |
507 | }, | |
508 | }; | |
509 | ||
9ad36924 | 510 | static struct chromeos_laptop cr48 = { |
ec199dd5 AD |
511 | .i2c_peripherals = { |
512 | /* Light Sensor. */ | |
513 | { .add = setup_tsl2563_als, I2C_ADAPTER_SMBUS }, | |
514 | }, | |
515 | }; | |
516 | ||
517 | #define _CBDD(board_) \ | |
9ad36924 | 518 | .callback = chromeos_laptop_dmi_matched, \ |
ec199dd5 AD |
519 | .driver_data = (void *)&board_ |
520 | ||
cdddd23f | 521 | static struct dmi_system_id chromeos_laptop_dmi_table[] __initdata = { |
d1381f45 | 522 | { |
ec199dd5 | 523 | .ident = "Samsung Series 5 550", |
d1381f45 BL |
524 | .matches = { |
525 | DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"), | |
526 | DMI_MATCH(DMI_PRODUCT_NAME, "Lumpy"), | |
527 | }, | |
ec199dd5 | 528 | _CBDD(samsung_series_5_550), |
8e1ad4c4 | 529 | }, |
d1381f45 | 530 | { |
ec199dd5 | 531 | .ident = "Samsung Series 5", |
d1381f45 | 532 | .matches = { |
ec199dd5 | 533 | DMI_MATCH(DMI_PRODUCT_NAME, "Alex"), |
d1381f45 | 534 | }, |
ec199dd5 | 535 | _CBDD(samsung_series_5), |
d1381f45 | 536 | }, |
cc5c3985 | 537 | { |
ec199dd5 | 538 | .ident = "Chromebook Pixel", |
cc5c3985 BL |
539 | .matches = { |
540 | DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"), | |
541 | DMI_MATCH(DMI_PRODUCT_NAME, "Link"), | |
542 | }, | |
ec199dd5 | 543 | _CBDD(chromebook_pixel), |
cc5c3985 | 544 | }, |
0e1e5e59 MH |
545 | { |
546 | .ident = "Wolf", | |
547 | .matches = { | |
548 | DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"), | |
549 | DMI_MATCH(DMI_PRODUCT_NAME, "Wolf"), | |
550 | }, | |
551 | _CBDD(dell_chromebook_11), | |
552 | }, | |
5ea9567f BL |
553 | { |
554 | .ident = "HP Chromebook 14", | |
555 | .matches = { | |
556 | DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"), | |
557 | DMI_MATCH(DMI_PRODUCT_NAME, "Falco"), | |
558 | }, | |
559 | _CBDD(hp_chromebook_14), | |
560 | }, | |
963cb6fa GC |
561 | { |
562 | .ident = "Toshiba CB35", | |
563 | .matches = { | |
564 | DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"), | |
565 | DMI_MATCH(DMI_PRODUCT_NAME, "Leon"), | |
566 | }, | |
567 | _CBDD(toshiba_cb35), | |
568 | }, | |
261f171f | 569 | { |
ec199dd5 | 570 | .ident = "Acer C7 Chromebook", |
261f171f BL |
571 | .matches = { |
572 | DMI_MATCH(DMI_PRODUCT_NAME, "Parrot"), | |
573 | }, | |
ec199dd5 | 574 | _CBDD(acer_c7_chromebook), |
e65a624b BL |
575 | }, |
576 | { | |
ec199dd5 | 577 | .ident = "Acer AC700", |
e65a624b | 578 | .matches = { |
ec199dd5 | 579 | DMI_MATCH(DMI_PRODUCT_NAME, "ZGB"), |
e65a624b | 580 | }, |
ec199dd5 | 581 | _CBDD(acer_ac700), |
261f171f | 582 | }, |
da3b0ab7 MW |
583 | { |
584 | .ident = "Acer C720", | |
585 | .matches = { | |
586 | DMI_MATCH(DMI_PRODUCT_NAME, "Peppy"), | |
587 | }, | |
588 | _CBDD(acer_c720), | |
589 | }, | |
8016bcbc | 590 | { |
ec199dd5 | 591 | .ident = "HP Pavilion 14 Chromebook", |
8016bcbc | 592 | .matches = { |
ec199dd5 | 593 | DMI_MATCH(DMI_PRODUCT_NAME, "Butterfly"), |
8016bcbc | 594 | }, |
ec199dd5 | 595 | _CBDD(hp_pavilion_14_chromebook), |
8016bcbc | 596 | }, |
aabf3f44 | 597 | { |
ec199dd5 | 598 | .ident = "Cr-48", |
aabf3f44 BL |
599 | .matches = { |
600 | DMI_MATCH(DMI_PRODUCT_NAME, "Mario"), | |
601 | }, | |
ec199dd5 | 602 | _CBDD(cr48), |
aabf3f44 | 603 | }, |
d1381f45 BL |
604 | { } |
605 | }; | |
606 | MODULE_DEVICE_TABLE(dmi, chromeos_laptop_dmi_table); | |
607 | ||
9ad36924 BL |
608 | static struct platform_device *cros_platform_device; |
609 | ||
610 | static struct platform_driver cros_platform_driver = { | |
611 | .driver = { | |
612 | .name = "chromeos_laptop", | |
9ad36924 BL |
613 | }, |
614 | .probe = chromeos_laptop_probe, | |
615 | }; | |
616 | ||
d1381f45 BL |
617 | static int __init chromeos_laptop_init(void) |
618 | { | |
9ad36924 | 619 | int ret; |
49c68a21 | 620 | |
d1381f45 BL |
621 | if (!dmi_check_system(chromeos_laptop_dmi_table)) { |
622 | pr_debug("%s unsupported system.\n", __func__); | |
623 | return -ENODEV; | |
624 | } | |
9ad36924 BL |
625 | |
626 | ret = platform_driver_register(&cros_platform_driver); | |
627 | if (ret) | |
628 | return ret; | |
629 | ||
630 | cros_platform_device = platform_device_alloc("chromeos_laptop", -1); | |
631 | if (!cros_platform_device) { | |
632 | ret = -ENOMEM; | |
633 | goto fail_platform_device1; | |
634 | } | |
635 | ||
636 | ret = platform_device_add(cros_platform_device); | |
637 | if (ret) | |
638 | goto fail_platform_device2; | |
639 | ||
d1381f45 | 640 | return 0; |
9ad36924 BL |
641 | |
642 | fail_platform_device2: | |
643 | platform_device_put(cros_platform_device); | |
644 | fail_platform_device1: | |
645 | platform_driver_unregister(&cros_platform_driver); | |
646 | return ret; | |
d1381f45 BL |
647 | } |
648 | ||
649 | static void __exit chromeos_laptop_exit(void) | |
650 | { | |
651 | if (als) | |
652 | i2c_unregister_device(als); | |
653 | if (tp) | |
654 | i2c_unregister_device(tp); | |
33a84f8a YS |
655 | if (ts) |
656 | i2c_unregister_device(ts); | |
2b8454a7 WY |
657 | |
658 | platform_device_unregister(cros_platform_device); | |
659 | platform_driver_unregister(&cros_platform_driver); | |
d1381f45 BL |
660 | } |
661 | ||
662 | module_init(chromeos_laptop_init); | |
663 | module_exit(chromeos_laptop_exit); | |
664 | ||
665 | MODULE_DESCRIPTION("Chrome OS Laptop driver"); | |
666 | MODULE_AUTHOR("Benson Leung <bleung@chromium.org>"); | |
667 | MODULE_LICENSE("GPL"); |