input/keyboard/locomokbd.c

1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * LoCoMo keyboard driver for Linux-based ARM PDAs:
4  * 	- SHARP Zaurus Collie (SL-5500)
5  * 	- SHARP Zaurus Poodle (SL-5600)
15 #include <linux/delay.h>
35 	0, KEY_ESC, KEY_ACTIVITY, 0, 0, 0, 0, 0, 0, 0,				/* 0 - 9 */
36 	0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_HOME, KEY_CONTACT,			/* 10 - 19 */
37 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,						/* 20 - 29 */
38 	0, 0, 0, KEY_CENTER, 0, KEY_MAIL, 0, 0, 0, 0,				/* 30 - 39 */
39 	0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RIGHT,					/* 40 - 49 */
40 	KEY_UP, KEY_LEFT, 0, 0, KEY_P, 0, KEY_O, KEY_I, KEY_Y, KEY_T,		/* 50 - 59 */
41 	KEY_E, KEY_W, 0, 0, 0, 0, KEY_DOWN, KEY_ENTER, 0, 0,			/* 60 - 69 */
42 	KEY_BACKSPACE, 0, KEY_L, KEY_U, KEY_H, KEY_R, KEY_D, KEY_Q, 0, 0,	/* 70 - 79 */
43 	0, 0, 0, 0, 0, 0, KEY_ENTER, KEY_RIGHTSHIFT, KEY_K, KEY_J,		/* 80 - 89 */
44 	KEY_G, KEY_F, KEY_X, KEY_S, 0, 0, 0, 0, 0, 0,				/* 90 - 99 */
45 	0, 0, KEY_DOT, 0, KEY_COMMA, KEY_N, KEY_B, KEY_C, KEY_Z, KEY_A,		/* 100 - 109 */
46 	KEY_LEFTSHIFT, KEY_TAB, KEY_LEFTCTRL, 0, 0, 0, 0, 0, 0, 0,		/* 110 - 119 */
47 	KEY_M, KEY_SPACE, KEY_V, KEY_APOSTROPHE, KEY_SLASH, 0, 0, 0		/* 120 - 128 */
114 	unsigned int row, col, rowd;  in locomokbd_scankeyboard()  local
117 	unsigned long membase = locomokbd->base;  in locomokbd_scankeyboard()
119 	spin_lock_irqsave(&locomokbd->lock, flags);  in locomokbd_scankeyboard()
130 		for (row = 0; row < KB_ROWS; row++) {  in locomokbd_scankeyboard()
133 			scancode = SCANCODE(col, row);  in locomokbd_scankeyboard()
134 			pressed = rowd & KB_ROWMASK(row);  in locomokbd_scankeyboard()
135 			key = locomokbd->keycode[scancode];  in locomokbd_scankeyboard()
137 			input_report_key(locomokbd->input, key, pressed);  in locomokbd_scankeyboard()
148 					locomokbd->suspend_jiffies + HZ))  in locomokbd_scankeyboard()
150 				if (locomokbd->count_cancel++  in locomokbd_scankeyboard()
153 				input_event(locomokbd->input, EV_PWR,  in locomokbd_scankeyboard()
155 				locomokbd->suspend_jiffies = jiffies;  in locomokbd_scankeyboard()
157 				locomokbd->count_cancel = 0;  in locomokbd_scankeyboard()
163 	input_sync(locomokbd->input);  in locomokbd_scankeyboard()
167 		mod_timer(&locomokbd->timer, jiffies + SCAN_INTERVAL);  in locomokbd_scankeyboard()
169 		locomokbd->count_cancel = 0;  in locomokbd_scankeyboard()
171 	spin_unlock_irqrestore(&locomokbd->lock, flags);  in locomokbd_scankeyboard()
182 	r = locomo_readl(locomokbd->base + LOCOMO_KIC);  in locomokbd_interrupt()
186 	locomo_writel(r & ~0x0100, locomokbd->base + LOCOMO_KIC); /* Ack */  in locomokbd_interrupt()
188 	/** wait chattering delay **/  in locomokbd_interrupt()
210 	r = locomo_readl(locomokbd->base + LOCOMO_KIC) | 0x0010;  in locomokbd_open()
211 	locomo_writel(r, locomokbd->base + LOCOMO_KIC);  in locomokbd_open()
220 	r = locomo_readl(locomokbd->base + LOCOMO_KIC) & ~0x0010;  in locomokbd_close()
221 	locomo_writel(r, locomokbd->base + LOCOMO_KIC);  in locomokbd_close()
233 		err = -ENOMEM;  in locomokbd_probe()
238 	if (!request_mem_region((unsigned long) dev->mapbase,  in locomokbd_probe()
239 				dev->length,  in locomokbd_probe()
241 		err = -EBUSY;  in locomokbd_probe()
248 	locomokbd->base = (unsigned long) dev->mapbase;  in locomokbd_probe()
250 	spin_lock_init(&locomokbd->lock);  in locomokbd_probe()
252 	timer_setup(&locomokbd->timer, locomokbd_timer_callback, 0);  in locomokbd_probe()
254 	locomokbd->suspend_jiffies = jiffies;  in locomokbd_probe()
256 	locomokbd->input = input_dev;  in locomokbd_probe()
257 	strcpy(locomokbd->phys, "locomokbd/input0");  in locomokbd_probe()
259 	input_dev->name = "LoCoMo keyboard";  in locomokbd_probe()
260 	input_dev->phys = locomokbd->phys;  in locomokbd_probe()
261 	input_dev->id.bustype = BUS_HOST;  in locomokbd_probe()
262 	input_dev->id.vendor = 0x0001;  in locomokbd_probe()
263 	input_dev->id.product = 0x0001;  in locomokbd_probe()
264 	input_dev->id.version = 0x0100;  in locomokbd_probe()
265 	input_dev->open = locomokbd_open;  in locomokbd_probe()
266 	input_dev->close = locomokbd_close;  in locomokbd_probe()
267 	input_dev->dev.parent = &dev->dev;  in locomokbd_probe()
269 	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) |  in locomokbd_probe()
271 	input_dev->keycode = locomokbd->keycode;  in locomokbd_probe()
272 	input_dev->keycodesize = sizeof(locomokbd_keycode[0]);  in locomokbd_probe()
273 	input_dev->keycodemax = ARRAY_SIZE(locomokbd_keycode);  in locomokbd_probe()
277 	memcpy(locomokbd->keycode, locomokbd_keycode, sizeof(locomokbd->keycode));  in locomokbd_probe()
279 		set_bit(locomokbd->keycode[i], input_dev->keybit);  in locomokbd_probe()
280 	clear_bit(0, input_dev->keybit);  in locomokbd_probe()
283 	err = request_irq(dev->irq[0], locomokbd_interrupt, 0, "locomokbd", locomokbd);  in locomokbd_probe()
289 	err = input_register_device(locomokbd->input);  in locomokbd_probe()
296 	free_irq(dev->irq[0], locomokbd);  in locomokbd_probe()
298 	release_mem_region((unsigned long) dev->mapbase, dev->length);  in locomokbd_probe()
311 	free_irq(dev->irq[0], locomokbd);  in locomokbd_remove()
313 	timer_shutdown_sync(&locomokbd->timer);  in locomokbd_remove()
315 	input_unregister_device(locomokbd->input);  in locomokbd_remove()
318 	release_mem_region((unsigned long) dev->mapbase, dev->length);  in locomokbd_remove()