blob: 1d59a2dc3c17c57a6a18110e73a6128bceb28073 [file] [log] [blame]
Richard Purdiefff71312005-09-13 01:25:35 -07001/*
2 * Keyboard driver for Sharp Spitz, Borzoi and Akita (SL-Cxx00 series)
3 *
4 * Copyright (c) 2005 Richard Purdie
5 *
6 * Based on corgikbd.c
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 version 2 as
10 * published by the Free Software Foundation.
11 *
12 */
13
14#include <linux/delay.h>
Russell Kingd052d1b2005-10-29 19:07:23 +010015#include <linux/platform_device.h>
Richard Purdiefff71312005-09-13 01:25:35 -070016#include <linux/init.h>
17#include <linux/input.h>
18#include <linux/interrupt.h>
19#include <linux/jiffies.h>
20#include <linux/module.h>
21#include <linux/slab.h>
Richard Purdiefff71312005-09-13 01:25:35 -070022
23#include <asm/arch/spitz.h>
24#include <asm/arch/hardware.h>
25#include <asm/arch/pxa-regs.h>
26
27#define KB_ROWS 7
28#define KB_COLS 11
29#define KB_ROWMASK(r) (1 << (r))
30#define SCANCODE(r,c) (((r)<<4) + (c) + 1)
31#define NR_SCANCODES ((KB_ROWS<<4) + 1)
32
Richard Purdie4872f782006-03-14 00:12:32 -050033#define SCAN_INTERVAL (50) /* ms */
Richard Purdiefff71312005-09-13 01:25:35 -070034#define HINGE_SCAN_INTERVAL (150) /* ms */
35
36#define SPITZ_KEY_CALENDER KEY_F1
37#define SPITZ_KEY_ADDRESS KEY_F2
38#define SPITZ_KEY_FN KEY_F3
39#define SPITZ_KEY_CANCEL KEY_F4
40#define SPITZ_KEY_EXOK KEY_F5
41#define SPITZ_KEY_EXCANCEL KEY_F6
42#define SPITZ_KEY_EXJOGDOWN KEY_F7
43#define SPITZ_KEY_EXJOGUP KEY_F8
44#define SPITZ_KEY_JAP1 KEY_LEFTALT
45#define SPITZ_KEY_JAP2 KEY_RIGHTCTRL
46#define SPITZ_KEY_SYNC KEY_F9
47#define SPITZ_KEY_MAIL KEY_F10
48#define SPITZ_KEY_OK KEY_F11
49#define SPITZ_KEY_MENU KEY_F12
50
51static unsigned char spitzkbd_keycode[NR_SCANCODES] = {
52 0, /* 0 */
53 KEY_LEFTCTRL, KEY_1, KEY_3, KEY_5, KEY_6, KEY_7, KEY_9, KEY_0, KEY_BACKSPACE, SPITZ_KEY_EXOK, SPITZ_KEY_EXCANCEL, 0, 0, 0, 0, 0, /* 1-16 */
54 0, KEY_2, KEY_4, KEY_R, KEY_Y, KEY_8, KEY_I, KEY_O, KEY_P, SPITZ_KEY_EXJOGDOWN, SPITZ_KEY_EXJOGUP, 0, 0, 0, 0, 0, /* 17-32 */
55 KEY_TAB, KEY_Q, KEY_E, KEY_T, KEY_G, KEY_U, KEY_J, KEY_K, 0, 0, 0, 0, 0, 0, 0, 0, /* 33-48 */
Richard Purdief11a7c02006-04-26 00:13:42 -040056 SPITZ_KEY_ADDRESS, KEY_W, KEY_S, KEY_F, KEY_V, KEY_H, KEY_M, KEY_L, 0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, /* 49-64 */
57 SPITZ_KEY_CALENDER, KEY_A, KEY_D, KEY_C, KEY_B, KEY_N, KEY_DOT, 0, KEY_ENTER, KEY_LEFTSHIFT, 0, 0, 0, 0, 0, 0, /* 65-80 */
Richard Purdiefff71312005-09-13 01:25:35 -070058 SPITZ_KEY_MAIL, KEY_Z, KEY_X, KEY_MINUS, KEY_SPACE, KEY_COMMA, 0, KEY_UP, 0, 0, SPITZ_KEY_FN, 0, 0, 0, 0, 0, /* 81-96 */
59 KEY_SYSRQ, SPITZ_KEY_JAP1, SPITZ_KEY_JAP2, SPITZ_KEY_CANCEL, SPITZ_KEY_OK, SPITZ_KEY_MENU, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0, 0, 0, 0 /* 97-112 */
60};
61
62static int spitz_strobes[] = {
63 SPITZ_GPIO_KEY_STROBE0,
64 SPITZ_GPIO_KEY_STROBE1,
65 SPITZ_GPIO_KEY_STROBE2,
66 SPITZ_GPIO_KEY_STROBE3,
67 SPITZ_GPIO_KEY_STROBE4,
68 SPITZ_GPIO_KEY_STROBE5,
69 SPITZ_GPIO_KEY_STROBE6,
70 SPITZ_GPIO_KEY_STROBE7,
71 SPITZ_GPIO_KEY_STROBE8,
72 SPITZ_GPIO_KEY_STROBE9,
73 SPITZ_GPIO_KEY_STROBE10,
74};
75
76static int spitz_senses[] = {
77 SPITZ_GPIO_KEY_SENSE0,
78 SPITZ_GPIO_KEY_SENSE1,
79 SPITZ_GPIO_KEY_SENSE2,
80 SPITZ_GPIO_KEY_SENSE3,
81 SPITZ_GPIO_KEY_SENSE4,
82 SPITZ_GPIO_KEY_SENSE5,
83 SPITZ_GPIO_KEY_SENSE6,
84};
85
86struct spitzkbd {
87 unsigned char keycode[ARRAY_SIZE(spitzkbd_keycode)];
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -050088 struct input_dev *input;
Richard Purdiefff71312005-09-13 01:25:35 -070089 char phys[32];
90
91 spinlock_t lock;
92 struct timer_list timer;
93 struct timer_list htimer;
94
95 unsigned int suspended;
96 unsigned long suspend_jiffies;
97};
98
99#define KB_DISCHARGE_DELAY 10
100#define KB_ACTIVATE_DELAY 10
101
102/* Helper functions for reading the keyboard matrix
103 * Note: We should really be using pxa_gpio_mode to alter GPDR but it
104 * requires a function call per GPIO bit which is excessive
105 * when we need to access 11 bits at once, multiple times.
106 * These functions must be called within local_irq_save()/local_irq_restore()
107 * or similar.
108 */
109static inline void spitzkbd_discharge_all(void)
110{
111 /* STROBE All HiZ */
112 GPCR0 = SPITZ_GPIO_G0_STROBE_BIT;
113 GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT;
114 GPCR1 = SPITZ_GPIO_G1_STROBE_BIT;
115 GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT;
116 GPCR2 = SPITZ_GPIO_G2_STROBE_BIT;
117 GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT;
118 GPCR3 = SPITZ_GPIO_G3_STROBE_BIT;
119 GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT;
120}
121
122static inline void spitzkbd_activate_all(void)
123{
124 /* STROBE ALL -> High */
125 GPSR0 = SPITZ_GPIO_G0_STROBE_BIT;
126 GPDR0 |= SPITZ_GPIO_G0_STROBE_BIT;
127 GPSR1 = SPITZ_GPIO_G1_STROBE_BIT;
128 GPDR1 |= SPITZ_GPIO_G1_STROBE_BIT;
129 GPSR2 = SPITZ_GPIO_G2_STROBE_BIT;
130 GPDR2 |= SPITZ_GPIO_G2_STROBE_BIT;
131 GPSR3 = SPITZ_GPIO_G3_STROBE_BIT;
132 GPDR3 |= SPITZ_GPIO_G3_STROBE_BIT;
133
134 udelay(KB_DISCHARGE_DELAY);
135
136 /* Clear any interrupts we may have triggered when altering the GPIO lines */
137 GEDR0 = SPITZ_GPIO_G0_SENSE_BIT;
138 GEDR1 = SPITZ_GPIO_G1_SENSE_BIT;
139 GEDR2 = SPITZ_GPIO_G2_SENSE_BIT;
140 GEDR3 = SPITZ_GPIO_G3_SENSE_BIT;
141}
142
143static inline void spitzkbd_activate_col(int col)
144{
145 int gpio = spitz_strobes[col];
146 GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT;
147 GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT;
148 GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT;
149 GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT;
150 GPSR(gpio) = GPIO_bit(gpio);
151 GPDR(gpio) |= GPIO_bit(gpio);
152}
153
154static inline void spitzkbd_reset_col(int col)
155{
156 int gpio = spitz_strobes[col];
157 GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT;
158 GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT;
159 GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT;
160 GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT;
161 GPCR(gpio) = GPIO_bit(gpio);
162 GPDR(gpio) |= GPIO_bit(gpio);
163}
164
165static inline int spitzkbd_get_row_status(int col)
166{
167 return ((GPLR0 >> 12) & 0x01) | ((GPLR0 >> 16) & 0x02)
168 | ((GPLR2 >> 25) & 0x04) | ((GPLR1 << 1) & 0x08)
169 | ((GPLR1 >> 0) & 0x10) | ((GPLR1 >> 1) & 0x60);
170}
171
172/*
173 * The spitz keyboard only generates interrupts when a key is pressed.
174 * When a key is pressed, we enable a timer which then scans the
175 * keyboard to detect when the key is released.
176 */
177
178/* Scan the hardware keyboard and push any changes up through the input layer */
David Howells7d12e782006-10-05 14:55:46 +0100179static void spitzkbd_scankeyboard(struct spitzkbd *spitzkbd_data)
Richard Purdiefff71312005-09-13 01:25:35 -0700180{
181 unsigned int row, col, rowd;
182 unsigned long flags;
183 unsigned int num_pressed, pwrkey = ((GPLR(SPITZ_GPIO_ON_KEY) & GPIO_bit(SPITZ_GPIO_ON_KEY)) != 0);
184
185 if (spitzkbd_data->suspended)
186 return;
187
188 spin_lock_irqsave(&spitzkbd_data->lock, flags);
189
Richard Purdiefff71312005-09-13 01:25:35 -0700190 num_pressed = 0;
191 for (col = 0; col < KB_COLS; col++) {
192 /*
193 * Discharge the output driver capacitatance
194 * in the keyboard matrix. (Yes it is significant..)
195 */
196
197 spitzkbd_discharge_all();
198 udelay(KB_DISCHARGE_DELAY);
199
200 spitzkbd_activate_col(col);
201 udelay(KB_ACTIVATE_DELAY);
202
203 rowd = spitzkbd_get_row_status(col);
204 for (row = 0; row < KB_ROWS; row++) {
205 unsigned int scancode, pressed;
206
207 scancode = SCANCODE(row, col);
208 pressed = rowd & KB_ROWMASK(row);
209
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500210 input_report_key(spitzkbd_data->input, spitzkbd_data->keycode[scancode], pressed);
Richard Purdiefff71312005-09-13 01:25:35 -0700211
212 if (pressed)
213 num_pressed++;
214 }
215 spitzkbd_reset_col(col);
216 }
217
218 spitzkbd_activate_all();
219
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500220 input_report_key(spitzkbd_data->input, SPITZ_KEY_SYNC, (GPLR(SPITZ_GPIO_SYNC) & GPIO_bit(SPITZ_GPIO_SYNC)) != 0 );
221 input_report_key(spitzkbd_data->input, KEY_SUSPEND, pwrkey);
Richard Purdiefff71312005-09-13 01:25:35 -0700222
223 if (pwrkey && time_after(jiffies, spitzkbd_data->suspend_jiffies + msecs_to_jiffies(1000))) {
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500224 input_event(spitzkbd_data->input, EV_PWR, KEY_SUSPEND, 1);
Richard Purdiefff71312005-09-13 01:25:35 -0700225 spitzkbd_data->suspend_jiffies = jiffies;
226 }
227
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500228 input_sync(spitzkbd_data->input);
Richard Purdiefff71312005-09-13 01:25:35 -0700229
230 /* if any keys are pressed, enable the timer */
231 if (num_pressed)
Richard Purdie4872f782006-03-14 00:12:32 -0500232 mod_timer(&spitzkbd_data->timer, jiffies + msecs_to_jiffies(SCAN_INTERVAL));
Richard Purdiefff71312005-09-13 01:25:35 -0700233
234 spin_unlock_irqrestore(&spitzkbd_data->lock, flags);
235}
236
237/*
238 * spitz keyboard interrupt handler.
239 */
David Howells7d12e782006-10-05 14:55:46 +0100240static irqreturn_t spitzkbd_interrupt(int irq, void *dev_id)
Richard Purdiefff71312005-09-13 01:25:35 -0700241{
242 struct spitzkbd *spitzkbd_data = dev_id;
243
244 if (!timer_pending(&spitzkbd_data->timer)) {
245 /** wait chattering delay **/
246 udelay(20);
David Howells7d12e782006-10-05 14:55:46 +0100247 spitzkbd_scankeyboard(spitzkbd_data);
Richard Purdiefff71312005-09-13 01:25:35 -0700248 }
249
250 return IRQ_HANDLED;
251}
252
253/*
254 * spitz timer checking for released keys
255 */
256static void spitzkbd_timer_callback(unsigned long data)
257{
258 struct spitzkbd *spitzkbd_data = (struct spitzkbd *) data;
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500259
Russell King36bd2622006-10-15 13:50:02 +0100260 spitzkbd_scankeyboard(spitzkbd_data);
Richard Purdiefff71312005-09-13 01:25:35 -0700261}
262
263/*
264 * The hinge switches generate an interrupt.
265 * We debounce the switches and pass them to the input system.
266 */
267
David Howells7d12e782006-10-05 14:55:46 +0100268static irqreturn_t spitzkbd_hinge_isr(int irq, void *dev_id)
Richard Purdiefff71312005-09-13 01:25:35 -0700269{
270 struct spitzkbd *spitzkbd_data = dev_id;
271
272 if (!timer_pending(&spitzkbd_data->htimer))
273 mod_timer(&spitzkbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
274
275 return IRQ_HANDLED;
276}
277
278#define HINGE_STABLE_COUNT 2
279static int sharpsl_hinge_state;
280static int hinge_count;
281
282static void spitzkbd_hinge_timer(unsigned long data)
283{
284 struct spitzkbd *spitzkbd_data = (struct spitzkbd *) data;
285 unsigned long state;
286 unsigned long flags;
287
288 state = GPLR(SPITZ_GPIO_SWA) & (GPIO_bit(SPITZ_GPIO_SWA)|GPIO_bit(SPITZ_GPIO_SWB));
Richard Purdie4872f782006-03-14 00:12:32 -0500289 state |= (GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT));
Richard Purdiefff71312005-09-13 01:25:35 -0700290 if (state != sharpsl_hinge_state) {
291 hinge_count = 0;
292 sharpsl_hinge_state = state;
293 } else if (hinge_count < HINGE_STABLE_COUNT) {
294 hinge_count++;
295 }
296
297 if (hinge_count >= HINGE_STABLE_COUNT) {
298 spin_lock_irqsave(&spitzkbd_data->lock, flags);
299
Richard Purdieed8f9e22006-05-29 23:31:03 -0400300 input_report_switch(spitzkbd_data->input, SW_LID, ((GPLR(SPITZ_GPIO_SWA) & GPIO_bit(SPITZ_GPIO_SWA)) != 0));
301 input_report_switch(spitzkbd_data->input, SW_TABLET_MODE, ((GPLR(SPITZ_GPIO_SWB) & GPIO_bit(SPITZ_GPIO_SWB)) != 0));
302 input_report_switch(spitzkbd_data->input, SW_HEADPHONE_INSERT, ((GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT)) != 0));
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500303 input_sync(spitzkbd_data->input);
Richard Purdiefff71312005-09-13 01:25:35 -0700304
305 spin_unlock_irqrestore(&spitzkbd_data->lock, flags);
306 } else {
307 mod_timer(&spitzkbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
308 }
309}
310
311#ifdef CONFIG_PM
Russell King3ae5eae2005-11-09 22:32:44 +0000312static int spitzkbd_suspend(struct platform_device *dev, pm_message_t state)
Richard Purdiefff71312005-09-13 01:25:35 -0700313{
Russell King9480e302005-10-28 09:52:56 -0700314 int i;
Russell King3ae5eae2005-11-09 22:32:44 +0000315 struct spitzkbd *spitzkbd = platform_get_drvdata(dev);
Russell King9480e302005-10-28 09:52:56 -0700316 spitzkbd->suspended = 1;
Richard Purdiefff71312005-09-13 01:25:35 -0700317
Russell King9480e302005-10-28 09:52:56 -0700318 /* Set Strobe lines as inputs - *except* strobe line 0 leave this
319 enabled so we can detect a power button press for resume */
320 for (i = 1; i < SPITZ_KEY_STROBE_NUM; i++)
321 pxa_gpio_mode(spitz_strobes[i] | GPIO_IN);
322
Richard Purdiefff71312005-09-13 01:25:35 -0700323 return 0;
324}
325
Russell King3ae5eae2005-11-09 22:32:44 +0000326static int spitzkbd_resume(struct platform_device *dev)
Richard Purdiefff71312005-09-13 01:25:35 -0700327{
Russell King9480e302005-10-28 09:52:56 -0700328 int i;
Russell King3ae5eae2005-11-09 22:32:44 +0000329 struct spitzkbd *spitzkbd = platform_get_drvdata(dev);
Richard Purdiefff71312005-09-13 01:25:35 -0700330
Russell King9480e302005-10-28 09:52:56 -0700331 for (i = 0; i < SPITZ_KEY_STROBE_NUM; i++)
332 pxa_gpio_mode(spitz_strobes[i] | GPIO_OUT | GPIO_DFLT_HIGH);
Richard Purdiefff71312005-09-13 01:25:35 -0700333
Russell King9480e302005-10-28 09:52:56 -0700334 /* Upon resume, ignore the suspend key for a short while */
335 spitzkbd->suspend_jiffies = jiffies;
336 spitzkbd->suspended = 0;
337
Richard Purdiefff71312005-09-13 01:25:35 -0700338 return 0;
339}
340#else
341#define spitzkbd_suspend NULL
342#define spitzkbd_resume NULL
343#endif
344
Russell King3ae5eae2005-11-09 22:32:44 +0000345static int __init spitzkbd_probe(struct platform_device *dev)
Richard Purdiefff71312005-09-13 01:25:35 -0700346{
Richard Purdiefff71312005-09-13 01:25:35 -0700347 struct spitzkbd *spitzkbd;
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500348 struct input_dev *input_dev;
Dmitry Torokhov2b03b602006-11-05 22:39:56 -0500349 int i, err = -ENOMEM;
Richard Purdiefff71312005-09-13 01:25:35 -0700350
351 spitzkbd = kzalloc(sizeof(struct spitzkbd), GFP_KERNEL);
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500352 input_dev = input_allocate_device();
Dmitry Torokhov2b03b602006-11-05 22:39:56 -0500353 if (!spitzkbd || !input_dev)
354 goto fail;
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500355
Russell King3ae5eae2005-11-09 22:32:44 +0000356 platform_set_drvdata(dev, spitzkbd);
Richard Purdiefff71312005-09-13 01:25:35 -0700357 strcpy(spitzkbd->phys, "spitzkbd/input0");
358
359 spin_lock_init(&spitzkbd->lock);
360
361 /* Init Keyboard rescan timer */
362 init_timer(&spitzkbd->timer);
363 spitzkbd->timer.function = spitzkbd_timer_callback;
364 spitzkbd->timer.data = (unsigned long) spitzkbd;
365
366 /* Init Hinge Timer */
367 init_timer(&spitzkbd->htimer);
368 spitzkbd->htimer.function = spitzkbd_hinge_timer;
369 spitzkbd->htimer.data = (unsigned long) spitzkbd;
370
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500371 spitzkbd->suspend_jiffies = jiffies;
Richard Purdiefff71312005-09-13 01:25:35 -0700372
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500373 spitzkbd->input = input_dev;
374
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500375 input_dev->name = "Spitz Keyboard";
376 input_dev->phys = spitzkbd->phys;
Dmitry Torokhov469ba4d2007-04-12 01:34:58 -0400377 input_dev->dev.parent = &dev->dev;
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500378
379 input_dev->id.bustype = BUS_HOST;
380 input_dev->id.vendor = 0x0001;
381 input_dev->id.product = 0x0001;
382 input_dev->id.version = 0x0100;
383
Jiri Slaby7b19ada2007-10-18 23:40:32 -0700384 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |
385 BIT_MASK(EV_PWR) | BIT_MASK(EV_SW);
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500386 input_dev->keycode = spitzkbd->keycode;
387 input_dev->keycodesize = sizeof(unsigned char);
388 input_dev->keycodemax = ARRAY_SIZE(spitzkbd_keycode);
Richard Purdiefff71312005-09-13 01:25:35 -0700389
390 memcpy(spitzkbd->keycode, spitzkbd_keycode, sizeof(spitzkbd->keycode));
391 for (i = 0; i < ARRAY_SIZE(spitzkbd_keycode); i++)
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500392 set_bit(spitzkbd->keycode[i], input_dev->keybit);
393 clear_bit(0, input_dev->keybit);
Richard Purdie9fe4f2a2008-01-03 10:46:13 -0500394 set_bit(KEY_SUSPEND, input_dev->keybit);
Richard Purdieed8f9e22006-05-29 23:31:03 -0400395 set_bit(SW_LID, input_dev->swbit);
396 set_bit(SW_TABLET_MODE, input_dev->swbit);
397 set_bit(SW_HEADPHONE_INSERT, input_dev->swbit);
Richard Purdiefff71312005-09-13 01:25:35 -0700398
Dmitry Torokhov2b03b602006-11-05 22:39:56 -0500399 err = input_register_device(input_dev);
400 if (err)
401 goto fail;
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500402
Richard Purdiefff71312005-09-13 01:25:35 -0700403 mod_timer(&spitzkbd->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL));
404
405 /* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */
406 for (i = 0; i < SPITZ_KEY_SENSE_NUM; i++) {
407 pxa_gpio_mode(spitz_senses[i] | GPIO_IN);
408 if (request_irq(IRQ_GPIO(spitz_senses[i]), spitzkbd_interrupt,
Thomas Gleixnerdace1452006-07-01 19:29:38 -0700409 IRQF_DISABLED|IRQF_TRIGGER_RISING,
Russell King9ded96f2006-01-08 01:02:07 -0800410 "Spitzkbd Sense", spitzkbd))
Richard Purdiefff71312005-09-13 01:25:35 -0700411 printk(KERN_WARNING "spitzkbd: Can't get Sense IRQ: %d!\n", i);
Richard Purdiefff71312005-09-13 01:25:35 -0700412 }
413
414 /* Set Strobe lines as outputs - set high */
415 for (i = 0; i < SPITZ_KEY_STROBE_NUM; i++)
416 pxa_gpio_mode(spitz_strobes[i] | GPIO_OUT | GPIO_DFLT_HIGH);
417
418 pxa_gpio_mode(SPITZ_GPIO_SYNC | GPIO_IN);
419 pxa_gpio_mode(SPITZ_GPIO_ON_KEY | GPIO_IN);
420 pxa_gpio_mode(SPITZ_GPIO_SWA | GPIO_IN);
421 pxa_gpio_mode(SPITZ_GPIO_SWB | GPIO_IN);
422
Russell King9ded96f2006-01-08 01:02:07 -0800423 request_irq(SPITZ_IRQ_GPIO_SYNC, spitzkbd_interrupt,
Thomas Gleixnerdace1452006-07-01 19:29:38 -0700424 IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
Russell King9ded96f2006-01-08 01:02:07 -0800425 "Spitzkbd Sync", spitzkbd);
426 request_irq(SPITZ_IRQ_GPIO_ON_KEY, spitzkbd_interrupt,
Thomas Gleixnerdace1452006-07-01 19:29:38 -0700427 IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
Russell King9ded96f2006-01-08 01:02:07 -0800428 "Spitzkbd PwrOn", spitzkbd);
429 request_irq(SPITZ_IRQ_GPIO_SWA, spitzkbd_hinge_isr,
Thomas Gleixnerdace1452006-07-01 19:29:38 -0700430 IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
Russell King9ded96f2006-01-08 01:02:07 -0800431 "Spitzkbd SWA", spitzkbd);
432 request_irq(SPITZ_IRQ_GPIO_SWB, spitzkbd_hinge_isr,
Thomas Gleixnerdace1452006-07-01 19:29:38 -0700433 IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
Russell King9ded96f2006-01-08 01:02:07 -0800434 "Spitzkbd SWB", spitzkbd);
Dmitry Torokhov2b03b602006-11-05 22:39:56 -0500435 request_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd_hinge_isr,
Thomas Gleixnerdace1452006-07-01 19:29:38 -0700436 IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
Richard Purdie4872f782006-03-14 00:12:32 -0500437 "Spitzkbd HP", spitzkbd);
Richard Purdiefff71312005-09-13 01:25:35 -0700438
Richard Purdiefff71312005-09-13 01:25:35 -0700439 return 0;
Dmitry Torokhov2b03b602006-11-05 22:39:56 -0500440
441 fail: input_free_device(input_dev);
442 kfree(spitzkbd);
443 return err;
Richard Purdiefff71312005-09-13 01:25:35 -0700444}
445
Russell King3ae5eae2005-11-09 22:32:44 +0000446static int spitzkbd_remove(struct platform_device *dev)
Richard Purdiefff71312005-09-13 01:25:35 -0700447{
448 int i;
Russell King3ae5eae2005-11-09 22:32:44 +0000449 struct spitzkbd *spitzkbd = platform_get_drvdata(dev);
Richard Purdiefff71312005-09-13 01:25:35 -0700450
451 for (i = 0; i < SPITZ_KEY_SENSE_NUM; i++)
452 free_irq(IRQ_GPIO(spitz_senses[i]), spitzkbd);
453
454 free_irq(SPITZ_IRQ_GPIO_SYNC, spitzkbd);
455 free_irq(SPITZ_IRQ_GPIO_ON_KEY, spitzkbd);
456 free_irq(SPITZ_IRQ_GPIO_SWA, spitzkbd);
457 free_irq(SPITZ_IRQ_GPIO_SWB, spitzkbd);
Richard Purdie4872f782006-03-14 00:12:32 -0500458 free_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd);
Richard Purdiefff71312005-09-13 01:25:35 -0700459
460 del_timer_sync(&spitzkbd->htimer);
461 del_timer_sync(&spitzkbd->timer);
462
Dmitry Torokhov3c42f0c2005-09-15 02:01:45 -0500463 input_unregister_device(spitzkbd->input);
Richard Purdiefff71312005-09-13 01:25:35 -0700464
465 kfree(spitzkbd);
466
467 return 0;
468}
469
Russell King3ae5eae2005-11-09 22:32:44 +0000470static struct platform_driver spitzkbd_driver = {
Richard Purdiefff71312005-09-13 01:25:35 -0700471 .probe = spitzkbd_probe,
472 .remove = spitzkbd_remove,
473 .suspend = spitzkbd_suspend,
474 .resume = spitzkbd_resume,
Russell King3ae5eae2005-11-09 22:32:44 +0000475 .driver = {
476 .name = "spitz-keyboard",
Dmitry Torokhov2b03b602006-11-05 22:39:56 -0500477 .owner = THIS_MODULE,
Russell King3ae5eae2005-11-09 22:32:44 +0000478 },
Richard Purdiefff71312005-09-13 01:25:35 -0700479};
480
481static int __devinit spitzkbd_init(void)
482{
Russell King3ae5eae2005-11-09 22:32:44 +0000483 return platform_driver_register(&spitzkbd_driver);
Richard Purdiefff71312005-09-13 01:25:35 -0700484}
485
486static void __exit spitzkbd_exit(void)
487{
Russell King3ae5eae2005-11-09 22:32:44 +0000488 platform_driver_unregister(&spitzkbd_driver);
Richard Purdiefff71312005-09-13 01:25:35 -0700489}
490
491module_init(spitzkbd_init);
492module_exit(spitzkbd_exit);
493
494MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
495MODULE_DESCRIPTION("Spitz Keyboard Driver");
496MODULE_LICENSE("GPLv2");