1 // SPDX-License-Identifier: GPL-2.0-only
4  * h3600 atmel micro companion support, key subdevice
21 #include <linux/mfd/ipaq-micro.h>
38 	KEY_DOWN,		/* 9:  Down				*/
44 	int key, down;  in micro_key_receive()  local
46 	down = 0x80 & msg[0];  in micro_key_receive()
47 	key  = 0x7f & msg[0];  in micro_key_receive()
49 	if (key < ARRAY_SIZE(micro_keycodes)) {  in micro_key_receive()
50 		input_report_key(keys->input, keys->codes[key], down);  in micro_key_receive()
51 		input_sync(keys->input);  in micro_key_receive()
57 	spin_lock(&keys->micro->lock);  in micro_key_start()
58 	keys->micro->key = micro_key_receive;  in micro_key_start()
59 	keys->micro->key_data = keys;  in micro_key_start()
60 	spin_unlock(&keys->micro->lock);  in micro_key_start()
65 	spin_lock(&keys->micro->lock);  in micro_key_stop()
66 	keys->micro->key = NULL;  in micro_key_stop()
67 	keys->micro->key_data = NULL;  in micro_key_stop()
68 	spin_unlock(&keys->micro->lock);  in micro_key_stop()
93 	keys = devm_kzalloc(&pdev->dev, sizeof(*keys), GFP_KERNEL);  in micro_key_probe()
95 		return -ENOMEM;  in micro_key_probe()
97 	keys->micro = dev_get_drvdata(pdev->dev.parent);  in micro_key_probe()
99 	keys->input = devm_input_allocate_device(&pdev->dev);  in micro_key_probe()
100 	if (!keys->input)  in micro_key_probe()
101 		return -ENOMEM;  in micro_key_probe()
103 	keys->input->keycodesize = sizeof(micro_keycodes[0]);  in micro_key_probe()
104 	keys->input->keycodemax = ARRAY_SIZE(micro_keycodes);  in micro_key_probe()
105 	keys->codes = devm_kmemdup(&pdev->dev, micro_keycodes,  in micro_key_probe()
106 			   keys->input->keycodesize * keys->input->keycodemax,  in micro_key_probe()
108 	if (!keys->codes)  in micro_key_probe()
109 		return -ENOMEM;  in micro_key_probe()
111 	keys->input->keycode = keys->codes;  in micro_key_probe()
113 	__set_bit(EV_KEY, keys->input->evbit);  in micro_key_probe()
115 		__set_bit(micro_keycodes[i], keys->input->keybit);  in micro_key_probe()
117 	keys->input->name = "h3600 micro keys";  in micro_key_probe()
118 	keys->input->open = micro_key_open;  in micro_key_probe()
119 	keys->input->close = micro_key_close;  in micro_key_probe()
120 	input_set_drvdata(keys->input, keys);  in micro_key_probe()
122 	error = input_register_device(keys->input);  in micro_key_probe()
142 	struct input_dev *input = keys->input;  in micro_key_resume()
144 	mutex_lock(&input->mutex);  in micro_key_resume()
149 	mutex_unlock(&input->mutex);  in micro_key_resume()
159 		.name    = "ipaq-micro-keys",
168 MODULE_ALIAS("platform:ipaq-micro-keys");