Commit | Line | Data |
---|---|---|
88751dd6 MH |
1 | /* |
2 | * File: drivers/input/keyboard/adp5588_keys.c | |
5a9003db MH |
3 | * Description: keypad driver for ADP5588 and ADP5587 |
4 | * I2C QWERTY Keypad and IO Expander | |
88751dd6 MH |
5 | * Bugs: Enter bugs at http://blackfin.uclinux.org/ |
6 | * | |
95716c0d | 7 | * Copyright (C) 2008-2010 Analog Devices Inc. |
88751dd6 MH |
8 | * Licensed under the GPL-2 or later. |
9 | */ | |
10 | ||
11 | #include <linux/module.h> | |
88751dd6 MH |
12 | #include <linux/init.h> |
13 | #include <linux/interrupt.h> | |
14 | #include <linux/irq.h> | |
15 | #include <linux/workqueue.h> | |
16 | #include <linux/errno.h> | |
17 | #include <linux/pm.h> | |
18 | #include <linux/platform_device.h> | |
19 | #include <linux/input.h> | |
20 | #include <linux/i2c.h> | |
ba9f507a | 21 | #include <linux/gpio.h> |
5a0e3ad6 | 22 | #include <linux/slab.h> |
88751dd6 MH |
23 | |
24 | #include <linux/i2c/adp5588.h> | |
25 | ||
88751dd6 MH |
26 | /* Key Event Register xy */ |
27 | #define KEY_EV_PRESSED (1 << 7) | |
28 | #define KEY_EV_MASK (0x7F) | |
29 | ||
30 | #define KP_SEL(x) (0xFFFF >> (16 - x)) /* 2^x-1 */ | |
31 | ||
32 | #define KEYP_MAX_EVENT 10 | |
33 | ||
34 | /* | |
35 | * Early pre 4.0 Silicon required to delay readout by at least 25ms, | |
36 | * since the Event Counter Register updated 25ms after the interrupt | |
37 | * asserted. | |
38 | */ | |
39 | #define WA_DELAYED_READOUT_REVID(rev) ((rev) < 4) | |
40 | ||
41 | struct adp5588_kpad { | |
42 | struct i2c_client *client; | |
43 | struct input_dev *input; | |
44 | struct delayed_work work; | |
45 | unsigned long delay; | |
46 | unsigned short keycode[ADP5588_KEYMAPSIZE]; | |
69a4af60 XC |
47 | const struct adp5588_gpi_map *gpimap; |
48 | unsigned short gpimapsize; | |
ba9f507a | 49 | #ifdef CONFIG_GPIOLIB |
95716c0d | 50 | unsigned char gpiomap[ADP5588_MAXGPIO]; |
ba9f507a XC |
51 | bool export_gpio; |
52 | struct gpio_chip gc; | |
53 | struct mutex gpio_lock; /* Protect cached dir, dat_out */ | |
54 | u8 dat_out[3]; | |
55 | u8 dir[3]; | |
56 | #endif | |
88751dd6 MH |
57 | }; |
58 | ||
59 | static int adp5588_read(struct i2c_client *client, u8 reg) | |
60 | { | |
61 | int ret = i2c_smbus_read_byte_data(client, reg); | |
62 | ||
63 | if (ret < 0) | |
64 | dev_err(&client->dev, "Read Error\n"); | |
65 | ||
66 | return ret; | |
67 | } | |
68 | ||
69 | static int adp5588_write(struct i2c_client *client, u8 reg, u8 val) | |
70 | { | |
71 | return i2c_smbus_write_byte_data(client, reg, val); | |
72 | } | |
73 | ||
ba9f507a XC |
74 | #ifdef CONFIG_GPIOLIB |
75 | static int adp5588_gpio_get_value(struct gpio_chip *chip, unsigned off) | |
76 | { | |
77 | struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc); | |
95716c0d MH |
78 | unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]); |
79 | unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]); | |
ba9f507a XC |
80 | |
81 | return !!(adp5588_read(kpad->client, GPIO_DAT_STAT1 + bank) & bit); | |
82 | } | |
83 | ||
84 | static void adp5588_gpio_set_value(struct gpio_chip *chip, | |
85 | unsigned off, int val) | |
86 | { | |
87 | struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc); | |
95716c0d MH |
88 | unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]); |
89 | unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]); | |
ba9f507a XC |
90 | |
91 | mutex_lock(&kpad->gpio_lock); | |
92 | ||
93 | if (val) | |
94 | kpad->dat_out[bank] |= bit; | |
95 | else | |
96 | kpad->dat_out[bank] &= ~bit; | |
97 | ||
98 | adp5588_write(kpad->client, GPIO_DAT_OUT1 + bank, | |
99 | kpad->dat_out[bank]); | |
100 | ||
101 | mutex_unlock(&kpad->gpio_lock); | |
102 | } | |
103 | ||
104 | static int adp5588_gpio_direction_input(struct gpio_chip *chip, unsigned off) | |
105 | { | |
106 | struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc); | |
95716c0d MH |
107 | unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]); |
108 | unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]); | |
ba9f507a XC |
109 | int ret; |
110 | ||
111 | mutex_lock(&kpad->gpio_lock); | |
112 | ||
113 | kpad->dir[bank] &= ~bit; | |
114 | ret = adp5588_write(kpad->client, GPIO_DIR1 + bank, kpad->dir[bank]); | |
115 | ||
116 | mutex_unlock(&kpad->gpio_lock); | |
117 | ||
118 | return ret; | |
119 | } | |
120 | ||
121 | static int adp5588_gpio_direction_output(struct gpio_chip *chip, | |
122 | unsigned off, int val) | |
123 | { | |
124 | struct adp5588_kpad *kpad = container_of(chip, struct adp5588_kpad, gc); | |
95716c0d MH |
125 | unsigned int bank = ADP5588_BANK(kpad->gpiomap[off]); |
126 | unsigned int bit = ADP5588_BIT(kpad->gpiomap[off]); | |
ba9f507a XC |
127 | int ret; |
128 | ||
129 | mutex_lock(&kpad->gpio_lock); | |
130 | ||
131 | kpad->dir[bank] |= bit; | |
132 | ||
133 | if (val) | |
134 | kpad->dat_out[bank] |= bit; | |
135 | else | |
136 | kpad->dat_out[bank] &= ~bit; | |
137 | ||
138 | ret = adp5588_write(kpad->client, GPIO_DAT_OUT1 + bank, | |
139 | kpad->dat_out[bank]); | |
140 | ret |= adp5588_write(kpad->client, GPIO_DIR1 + bank, | |
141 | kpad->dir[bank]); | |
142 | ||
143 | mutex_unlock(&kpad->gpio_lock); | |
144 | ||
145 | return ret; | |
146 | } | |
147 | ||
0d87c722 DT |
148 | static int __devinit adp5588_build_gpiomap(struct adp5588_kpad *kpad, |
149 | const struct adp5588_kpad_platform_data *pdata) | |
ba9f507a | 150 | { |
95716c0d | 151 | bool pin_used[ADP5588_MAXGPIO]; |
0d87c722 DT |
152 | int n_unused = 0; |
153 | int i; | |
ba9f507a | 154 | |
0d87c722 | 155 | memset(pin_used, 0, sizeof(pin_used)); |
ba9f507a | 156 | |
0d87c722 DT |
157 | for (i = 0; i < pdata->rows; i++) |
158 | pin_used[i] = true; | |
ba9f507a | 159 | |
0d87c722 DT |
160 | for (i = 0; i < pdata->cols; i++) |
161 | pin_used[i + GPI_PIN_COL_BASE - GPI_PIN_BASE] = true; | |
ba9f507a | 162 | |
0d87c722 DT |
163 | for (i = 0; i < kpad->gpimapsize; i++) |
164 | pin_used[kpad->gpimap[i].pin - GPI_PIN_BASE] = true; | |
ba9f507a | 165 | |
95716c0d | 166 | for (i = 0; i < ADP5588_MAXGPIO; i++) |
0d87c722 DT |
167 | if (!pin_used[i]) |
168 | kpad->gpiomap[n_unused++] = i; | |
ba9f507a | 169 | |
0d87c722 DT |
170 | return n_unused; |
171 | } | |
ba9f507a | 172 | |
0d87c722 DT |
173 | static int __devinit adp5588_gpio_add(struct adp5588_kpad *kpad) |
174 | { | |
175 | struct device *dev = &kpad->client->dev; | |
176 | const struct adp5588_kpad_platform_data *pdata = dev->platform_data; | |
177 | const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data; | |
178 | int i, error; | |
179 | ||
180 | if (!gpio_data) | |
181 | return 0; | |
182 | ||
183 | kpad->gc.ngpio = adp5588_build_gpiomap(kpad, pdata); | |
184 | if (kpad->gc.ngpio == 0) { | |
ba9f507a XC |
185 | dev_info(dev, "No unused gpios left to export\n"); |
186 | return 0; | |
187 | } | |
188 | ||
0d87c722 DT |
189 | kpad->export_gpio = true; |
190 | ||
ba9f507a XC |
191 | kpad->gc.direction_input = adp5588_gpio_direction_input; |
192 | kpad->gc.direction_output = adp5588_gpio_direction_output; | |
193 | kpad->gc.get = adp5588_gpio_get_value; | |
194 | kpad->gc.set = adp5588_gpio_set_value; | |
195 | kpad->gc.can_sleep = 1; | |
196 | ||
197 | kpad->gc.base = gpio_data->gpio_start; | |
198 | kpad->gc.label = kpad->client->name; | |
199 | kpad->gc.owner = THIS_MODULE; | |
d0a3457d | 200 | kpad->gc.names = gpio_data->names; |
ba9f507a XC |
201 | |
202 | mutex_init(&kpad->gpio_lock); | |
203 | ||
204 | error = gpiochip_add(&kpad->gc); | |
205 | if (error) { | |
206 | dev_err(dev, "gpiochip_add failed, err: %d\n", error); | |
207 | return error; | |
208 | } | |
209 | ||
95716c0d | 210 | for (i = 0; i <= ADP5588_BANK(ADP5588_MAXGPIO); i++) { |
ba9f507a XC |
211 | kpad->dat_out[i] = adp5588_read(kpad->client, |
212 | GPIO_DAT_OUT1 + i); | |
213 | kpad->dir[i] = adp5588_read(kpad->client, GPIO_DIR1 + i); | |
214 | } | |
215 | ||
216 | if (gpio_data->setup) { | |
217 | error = gpio_data->setup(kpad->client, | |
218 | kpad->gc.base, kpad->gc.ngpio, | |
219 | gpio_data->context); | |
220 | if (error) | |
221 | dev_warn(dev, "setup failed, %d\n", error); | |
222 | } | |
223 | ||
224 | return 0; | |
225 | } | |
226 | ||
0d87c722 | 227 | static void __devexit adp5588_gpio_remove(struct adp5588_kpad *kpad) |
ba9f507a | 228 | { |
0d87c722 | 229 | struct device *dev = &kpad->client->dev; |
ba9f507a XC |
230 | const struct adp5588_kpad_platform_data *pdata = dev->platform_data; |
231 | const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data; | |
232 | int error; | |
233 | ||
234 | if (!kpad->export_gpio) | |
235 | return; | |
236 | ||
237 | if (gpio_data->teardown) { | |
238 | error = gpio_data->teardown(kpad->client, | |
239 | kpad->gc.base, kpad->gc.ngpio, | |
240 | gpio_data->context); | |
241 | if (error) | |
242 | dev_warn(dev, "teardown failed %d\n", error); | |
243 | } | |
244 | ||
245 | error = gpiochip_remove(&kpad->gc); | |
246 | if (error) | |
247 | dev_warn(dev, "gpiochip_remove failed %d\n", error); | |
248 | } | |
249 | #else | |
0d87c722 | 250 | static inline int adp5588_gpio_add(struct adp5588_kpad *kpad) |
ba9f507a XC |
251 | { |
252 | return 0; | |
253 | } | |
254 | ||
0d87c722 | 255 | static inline void adp5588_gpio_remove(struct adp5588_kpad *kpad) |
ba9f507a XC |
256 | { |
257 | } | |
258 | #endif | |
259 | ||
69a4af60 XC |
260 | static void adp5588_report_events(struct adp5588_kpad *kpad, int ev_cnt) |
261 | { | |
262 | int i, j; | |
263 | ||
264 | for (i = 0; i < ev_cnt; i++) { | |
265 | int key = adp5588_read(kpad->client, Key_EVENTA + i); | |
266 | int key_val = key & KEY_EV_MASK; | |
267 | ||
268 | if (key_val >= GPI_PIN_BASE && key_val <= GPI_PIN_END) { | |
269 | for (j = 0; j < kpad->gpimapsize; j++) { | |
270 | if (key_val == kpad->gpimap[j].pin) { | |
271 | input_report_switch(kpad->input, | |
272 | kpad->gpimap[j].sw_evt, | |
273 | key & KEY_EV_PRESSED); | |
274 | break; | |
275 | } | |
276 | } | |
277 | } else { | |
278 | input_report_key(kpad->input, | |
279 | kpad->keycode[key_val - 1], | |
280 | key & KEY_EV_PRESSED); | |
281 | } | |
282 | } | |
283 | } | |
284 | ||
88751dd6 MH |
285 | static void adp5588_work(struct work_struct *work) |
286 | { | |
287 | struct adp5588_kpad *kpad = container_of(work, | |
288 | struct adp5588_kpad, work.work); | |
289 | struct i2c_client *client = kpad->client; | |
69a4af60 | 290 | int status, ev_cnt; |
88751dd6 MH |
291 | |
292 | status = adp5588_read(client, INT_STAT); | |
293 | ||
95716c0d | 294 | if (status & ADP5588_OVR_FLOW_INT) /* Unlikely and should never happen */ |
88751dd6 MH |
295 | dev_err(&client->dev, "Event Overflow Error\n"); |
296 | ||
95716c0d MH |
297 | if (status & ADP5588_KE_INT) { |
298 | ev_cnt = adp5588_read(client, KEY_LCK_EC_STAT) & ADP5588_KEC; | |
88751dd6 | 299 | if (ev_cnt) { |
69a4af60 | 300 | adp5588_report_events(kpad, ev_cnt); |
88751dd6 MH |
301 | input_sync(kpad->input); |
302 | } | |
303 | } | |
304 | adp5588_write(client, INT_STAT, status); /* Status is W1C */ | |
305 | } | |
306 | ||
307 | static irqreturn_t adp5588_irq(int irq, void *handle) | |
308 | { | |
309 | struct adp5588_kpad *kpad = handle; | |
310 | ||
311 | /* | |
312 | * use keventd context to read the event fifo registers | |
313 | * Schedule readout at least 25ms after notification for | |
314 | * REVID < 4 | |
315 | */ | |
316 | ||
317 | schedule_delayed_work(&kpad->work, kpad->delay); | |
318 | ||
319 | return IRQ_HANDLED; | |
320 | } | |
321 | ||
322 | static int __devinit adp5588_setup(struct i2c_client *client) | |
323 | { | |
ba9f507a XC |
324 | const struct adp5588_kpad_platform_data *pdata = client->dev.platform_data; |
325 | const struct adp5588_gpio_platform_data *gpio_data = pdata->gpio_data; | |
88751dd6 | 326 | int i, ret; |
69a4af60 | 327 | unsigned char evt_mode1 = 0, evt_mode2 = 0, evt_mode3 = 0; |
88751dd6 MH |
328 | |
329 | ret = adp5588_write(client, KP_GPIO1, KP_SEL(pdata->rows)); | |
330 | ret |= adp5588_write(client, KP_GPIO2, KP_SEL(pdata->cols) & 0xFF); | |
331 | ret |= adp5588_write(client, KP_GPIO3, KP_SEL(pdata->cols) >> 8); | |
332 | ||
333 | if (pdata->en_keylock) { | |
334 | ret |= adp5588_write(client, UNLOCK1, pdata->unlock_key1); | |
335 | ret |= adp5588_write(client, UNLOCK2, pdata->unlock_key2); | |
95716c0d | 336 | ret |= adp5588_write(client, KEY_LCK_EC_STAT, ADP5588_K_LCK_EN); |
88751dd6 MH |
337 | } |
338 | ||
339 | for (i = 0; i < KEYP_MAX_EVENT; i++) | |
340 | ret |= adp5588_read(client, Key_EVENTA); | |
341 | ||
69a4af60 XC |
342 | for (i = 0; i < pdata->gpimapsize; i++) { |
343 | unsigned short pin = pdata->gpimap[i].pin; | |
344 | ||
345 | if (pin <= GPI_PIN_ROW_END) { | |
346 | evt_mode1 |= (1 << (pin - GPI_PIN_ROW_BASE)); | |
347 | } else { | |
348 | evt_mode2 |= ((1 << (pin - GPI_PIN_COL_BASE)) & 0xFF); | |
349 | evt_mode3 |= ((1 << (pin - GPI_PIN_COL_BASE)) >> 8); | |
350 | } | |
351 | } | |
352 | ||
353 | if (pdata->gpimapsize) { | |
354 | ret |= adp5588_write(client, GPI_EM1, evt_mode1); | |
355 | ret |= adp5588_write(client, GPI_EM2, evt_mode2); | |
356 | ret |= adp5588_write(client, GPI_EM3, evt_mode3); | |
357 | } | |
358 | ||
ba9f507a | 359 | if (gpio_data) { |
95716c0d | 360 | for (i = 0; i <= ADP5588_BANK(ADP5588_MAXGPIO); i++) { |
ba9f507a XC |
361 | int pull_mask = gpio_data->pullup_dis_mask; |
362 | ||
363 | ret |= adp5588_write(client, GPIO_PULL1 + i, | |
364 | (pull_mask >> (8 * i)) & 0xFF); | |
365 | } | |
366 | } | |
367 | ||
95716c0d MH |
368 | ret |= adp5588_write(client, INT_STAT, |
369 | ADP5588_CMP2_INT | ADP5588_CMP1_INT | | |
370 | ADP5588_OVR_FLOW_INT | ADP5588_K_LCK_INT | | |
371 | ADP5588_GPI_INT | ADP5588_KE_INT); /* Status is W1C */ | |
88751dd6 | 372 | |
95716c0d MH |
373 | ret |= adp5588_write(client, CFG, ADP5588_INT_CFG | |
374 | ADP5588_OVR_FLOW_IEN | | |
375 | ADP5588_KE_IEN); | |
88751dd6 MH |
376 | |
377 | if (ret < 0) { | |
378 | dev_err(&client->dev, "Write Error\n"); | |
379 | return ret; | |
380 | } | |
381 | ||
382 | return 0; | |
383 | } | |
384 | ||
69a4af60 XC |
385 | static void __devinit adp5588_report_switch_state(struct adp5588_kpad *kpad) |
386 | { | |
387 | int gpi_stat1 = adp5588_read(kpad->client, GPIO_DAT_STAT1); | |
388 | int gpi_stat2 = adp5588_read(kpad->client, GPIO_DAT_STAT2); | |
389 | int gpi_stat3 = adp5588_read(kpad->client, GPIO_DAT_STAT3); | |
390 | int gpi_stat_tmp, pin_loc; | |
391 | int i; | |
392 | ||
393 | for (i = 0; i < kpad->gpimapsize; i++) { | |
394 | unsigned short pin = kpad->gpimap[i].pin; | |
395 | ||
396 | if (pin <= GPI_PIN_ROW_END) { | |
397 | gpi_stat_tmp = gpi_stat1; | |
398 | pin_loc = pin - GPI_PIN_ROW_BASE; | |
399 | } else if ((pin - GPI_PIN_COL_BASE) < 8) { | |
400 | gpi_stat_tmp = gpi_stat2; | |
401 | pin_loc = pin - GPI_PIN_COL_BASE; | |
402 | } else { | |
403 | gpi_stat_tmp = gpi_stat3; | |
404 | pin_loc = pin - GPI_PIN_COL_BASE - 8; | |
405 | } | |
406 | ||
407 | if (gpi_stat_tmp < 0) { | |
408 | dev_err(&kpad->client->dev, | |
409 | "Can't read GPIO_DAT_STAT switch %d default to OFF\n", | |
410 | pin); | |
411 | gpi_stat_tmp = 0; | |
412 | } | |
413 | ||
414 | input_report_switch(kpad->input, | |
415 | kpad->gpimap[i].sw_evt, | |
416 | !(gpi_stat_tmp & (1 << pin_loc))); | |
417 | } | |
418 | ||
419 | input_sync(kpad->input); | |
420 | } | |
421 | ||
422 | ||
88751dd6 MH |
423 | static int __devinit adp5588_probe(struct i2c_client *client, |
424 | const struct i2c_device_id *id) | |
425 | { | |
426 | struct adp5588_kpad *kpad; | |
ba9f507a | 427 | const struct adp5588_kpad_platform_data *pdata = client->dev.platform_data; |
88751dd6 MH |
428 | struct input_dev *input; |
429 | unsigned int revid; | |
430 | int ret, i; | |
431 | int error; | |
432 | ||
433 | if (!i2c_check_functionality(client->adapter, | |
434 | I2C_FUNC_SMBUS_BYTE_DATA)) { | |
435 | dev_err(&client->dev, "SMBUS Byte Data not Supported\n"); | |
436 | return -EIO; | |
437 | } | |
438 | ||
439 | if (!pdata) { | |
440 | dev_err(&client->dev, "no platform data?\n"); | |
441 | return -EINVAL; | |
442 | } | |
443 | ||
444 | if (!pdata->rows || !pdata->cols || !pdata->keymap) { | |
445 | dev_err(&client->dev, "no rows, cols or keymap from pdata\n"); | |
446 | return -EINVAL; | |
447 | } | |
448 | ||
449 | if (pdata->keymapsize != ADP5588_KEYMAPSIZE) { | |
450 | dev_err(&client->dev, "invalid keymapsize\n"); | |
451 | return -EINVAL; | |
452 | } | |
453 | ||
69a4af60 XC |
454 | if (!pdata->gpimap && pdata->gpimapsize) { |
455 | dev_err(&client->dev, "invalid gpimap from pdata\n"); | |
456 | return -EINVAL; | |
457 | } | |
458 | ||
459 | if (pdata->gpimapsize > ADP5588_GPIMAPSIZE_MAX) { | |
460 | dev_err(&client->dev, "invalid gpimapsize\n"); | |
461 | return -EINVAL; | |
462 | } | |
463 | ||
464 | for (i = 0; i < pdata->gpimapsize; i++) { | |
465 | unsigned short pin = pdata->gpimap[i].pin; | |
466 | ||
467 | if (pin < GPI_PIN_BASE || pin > GPI_PIN_END) { | |
468 | dev_err(&client->dev, "invalid gpi pin data\n"); | |
469 | return -EINVAL; | |
470 | } | |
471 | ||
472 | if (pin <= GPI_PIN_ROW_END) { | |
473 | if (pin - GPI_PIN_ROW_BASE + 1 <= pdata->rows) { | |
474 | dev_err(&client->dev, "invalid gpi row data\n"); | |
475 | return -EINVAL; | |
476 | } | |
477 | } else { | |
478 | if (pin - GPI_PIN_COL_BASE + 1 <= pdata->cols) { | |
479 | dev_err(&client->dev, "invalid gpi col data\n"); | |
480 | return -EINVAL; | |
481 | } | |
482 | } | |
483 | } | |
484 | ||
88751dd6 MH |
485 | if (!client->irq) { |
486 | dev_err(&client->dev, "no IRQ?\n"); | |
487 | return -EINVAL; | |
488 | } | |
489 | ||
490 | kpad = kzalloc(sizeof(*kpad), GFP_KERNEL); | |
491 | input = input_allocate_device(); | |
492 | if (!kpad || !input) { | |
493 | error = -ENOMEM; | |
494 | goto err_free_mem; | |
495 | } | |
496 | ||
497 | kpad->client = client; | |
498 | kpad->input = input; | |
499 | INIT_DELAYED_WORK(&kpad->work, adp5588_work); | |
500 | ||
501 | ret = adp5588_read(client, DEV_ID); | |
502 | if (ret < 0) { | |
503 | error = ret; | |
504 | goto err_free_mem; | |
505 | } | |
506 | ||
507 | revid = (u8) ret & ADP5588_DEVICE_ID_MASK; | |
508 | if (WA_DELAYED_READOUT_REVID(revid)) | |
509 | kpad->delay = msecs_to_jiffies(30); | |
510 | ||
511 | input->name = client->name; | |
512 | input->phys = "adp5588-keys/input0"; | |
513 | input->dev.parent = &client->dev; | |
514 | ||
515 | input_set_drvdata(input, kpad); | |
516 | ||
517 | input->id.bustype = BUS_I2C; | |
518 | input->id.vendor = 0x0001; | |
519 | input->id.product = 0x0001; | |
520 | input->id.version = revid; | |
521 | ||
522 | input->keycodesize = sizeof(kpad->keycode[0]); | |
523 | input->keycodemax = pdata->keymapsize; | |
524 | input->keycode = kpad->keycode; | |
525 | ||
526 | memcpy(kpad->keycode, pdata->keymap, | |
527 | pdata->keymapsize * input->keycodesize); | |
528 | ||
69a4af60 XC |
529 | kpad->gpimap = pdata->gpimap; |
530 | kpad->gpimapsize = pdata->gpimapsize; | |
531 | ||
88751dd6 MH |
532 | /* setup input device */ |
533 | __set_bit(EV_KEY, input->evbit); | |
534 | ||
535 | if (pdata->repeat) | |
536 | __set_bit(EV_REP, input->evbit); | |
537 | ||
538 | for (i = 0; i < input->keycodemax; i++) | |
539 | __set_bit(kpad->keycode[i] & KEY_MAX, input->keybit); | |
540 | __clear_bit(KEY_RESERVED, input->keybit); | |
541 | ||
69a4af60 XC |
542 | if (kpad->gpimapsize) |
543 | __set_bit(EV_SW, input->evbit); | |
544 | for (i = 0; i < kpad->gpimapsize; i++) | |
545 | __set_bit(kpad->gpimap[i].sw_evt, input->swbit); | |
546 | ||
88751dd6 MH |
547 | error = input_register_device(input); |
548 | if (error) { | |
549 | dev_err(&client->dev, "unable to register input device\n"); | |
550 | goto err_free_mem; | |
551 | } | |
552 | ||
553 | error = request_irq(client->irq, adp5588_irq, | |
ec4665c4 | 554 | IRQF_TRIGGER_FALLING, |
88751dd6 MH |
555 | client->dev.driver->name, kpad); |
556 | if (error) { | |
557 | dev_err(&client->dev, "irq %d busy?\n", client->irq); | |
558 | goto err_unreg_dev; | |
559 | } | |
560 | ||
561 | error = adp5588_setup(client); | |
562 | if (error) | |
563 | goto err_free_irq; | |
564 | ||
69a4af60 XC |
565 | if (kpad->gpimapsize) |
566 | adp5588_report_switch_state(kpad); | |
567 | ||
0d87c722 | 568 | error = adp5588_gpio_add(kpad); |
ba9f507a XC |
569 | if (error) |
570 | goto err_free_irq; | |
571 | ||
88751dd6 MH |
572 | device_init_wakeup(&client->dev, 1); |
573 | i2c_set_clientdata(client, kpad); | |
574 | ||
575 | dev_info(&client->dev, "Rev.%d keypad, irq %d\n", revid, client->irq); | |
576 | return 0; | |
577 | ||
578 | err_free_irq: | |
579 | free_irq(client->irq, kpad); | |
580 | err_unreg_dev: | |
581 | input_unregister_device(input); | |
582 | input = NULL; | |
583 | err_free_mem: | |
584 | input_free_device(input); | |
585 | kfree(kpad); | |
586 | ||
587 | return error; | |
588 | } | |
589 | ||
590 | static int __devexit adp5588_remove(struct i2c_client *client) | |
591 | { | |
592 | struct adp5588_kpad *kpad = i2c_get_clientdata(client); | |
593 | ||
594 | adp5588_write(client, CFG, 0); | |
595 | free_irq(client->irq, kpad); | |
596 | cancel_delayed_work_sync(&kpad->work); | |
597 | input_unregister_device(kpad->input); | |
0d87c722 | 598 | adp5588_gpio_remove(kpad); |
88751dd6 MH |
599 | kfree(kpad); |
600 | ||
601 | return 0; | |
602 | } | |
603 | ||
604 | #ifdef CONFIG_PM | |
605 | static int adp5588_suspend(struct device *dev) | |
606 | { | |
607 | struct adp5588_kpad *kpad = dev_get_drvdata(dev); | |
608 | struct i2c_client *client = kpad->client; | |
609 | ||
610 | disable_irq(client->irq); | |
611 | cancel_delayed_work_sync(&kpad->work); | |
612 | ||
613 | if (device_may_wakeup(&client->dev)) | |
614 | enable_irq_wake(client->irq); | |
615 | ||
616 | return 0; | |
617 | } | |
618 | ||
619 | static int adp5588_resume(struct device *dev) | |
620 | { | |
621 | struct adp5588_kpad *kpad = dev_get_drvdata(dev); | |
622 | struct i2c_client *client = kpad->client; | |
623 | ||
624 | if (device_may_wakeup(&client->dev)) | |
625 | disable_irq_wake(client->irq); | |
626 | ||
627 | enable_irq(client->irq); | |
628 | ||
629 | return 0; | |
630 | } | |
631 | ||
47145210 | 632 | static const struct dev_pm_ops adp5588_dev_pm_ops = { |
88751dd6 MH |
633 | .suspend = adp5588_suspend, |
634 | .resume = adp5588_resume, | |
635 | }; | |
636 | #endif | |
637 | ||
638 | static const struct i2c_device_id adp5588_id[] = { | |
d537155a | 639 | { "adp5588-keys", 0 }, |
5a9003db | 640 | { "adp5587-keys", 0 }, |
88751dd6 MH |
641 | { } |
642 | }; | |
643 | MODULE_DEVICE_TABLE(i2c, adp5588_id); | |
644 | ||
645 | static struct i2c_driver adp5588_driver = { | |
646 | .driver = { | |
647 | .name = KBUILD_MODNAME, | |
648 | #ifdef CONFIG_PM | |
649 | .pm = &adp5588_dev_pm_ops, | |
650 | #endif | |
651 | }, | |
652 | .probe = adp5588_probe, | |
653 | .remove = __devexit_p(adp5588_remove), | |
654 | .id_table = adp5588_id, | |
655 | }; | |
656 | ||
1b92c1cf | 657 | module_i2c_driver(adp5588_driver); |
88751dd6 MH |
658 | |
659 | MODULE_LICENSE("GPL"); | |
660 | MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>"); | |
5a9003db | 661 | MODULE_DESCRIPTION("ADP5588/87 Keypad driver"); |