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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) 1999-2001 Vojtech Pavlik
4 */
5
6/*
7 * Sun keyboard driver for Linux
8 */
9
10/*
11 */
12
13#include <linux/delay.h>
14#include <linux/sched.h>
15#include <linux/slab.h>
16#include <linux/module.h>
17#include <linux/interrupt.h>
18#include <linux/input.h>
19#include <linux/serio.h>
20#include <linux/workqueue.h>
21
22#define DRIVER_DESC "Sun keyboard driver"
23
24MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
25MODULE_DESCRIPTION(DRIVER_DESC);
26MODULE_LICENSE("GPL");
27
28static unsigned char sunkbd_keycode[128] = {
29 0,128,114,129,115, 59, 60, 68, 61, 87, 62, 88, 63,100, 64,112,
30 65, 66, 67, 56,103,119, 99, 70,105,130,131,108,106, 1, 2, 3,
31 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 41, 14,110,113, 98, 55,
32 116,132, 83,133,102, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
33 26, 27,111,127, 71, 72, 73, 74,134,135,107, 0, 29, 30, 31, 32,
34 33, 34, 35, 36, 37, 38, 39, 40, 43, 28, 96, 75, 76, 77, 82,136,
35 104,137, 69, 42, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,101,
36 79, 80, 81, 0, 0, 0,138, 58,125, 57,126,109, 86, 78
37};
38
39#define SUNKBD_CMD_RESET 0x1
40#define SUNKBD_CMD_BELLON 0x2
41#define SUNKBD_CMD_BELLOFF 0x3
42#define SUNKBD_CMD_CLICK 0xa
43#define SUNKBD_CMD_NOCLICK 0xb
44#define SUNKBD_CMD_SETLED 0xe
45#define SUNKBD_CMD_LAYOUT 0xf
46
47#define SUNKBD_RET_RESET 0xff
48#define SUNKBD_RET_ALLUP 0x7f
49#define SUNKBD_RET_LAYOUT 0xfe
50
51#define SUNKBD_LAYOUT_5_MASK 0x20
52#define SUNKBD_RELEASE 0x80
53#define SUNKBD_KEY 0x7f
54
55/*
56 * Per-keyboard data.
57 */
58
59struct sunkbd {
60 unsigned char keycode[ARRAY_SIZE(sunkbd_keycode)];
61 struct input_dev *dev;
62 struct serio *serio;
63 struct work_struct tq;
64 wait_queue_head_t wait;
65 char name[64];
66 char phys[32];
67 char type;
68 bool enabled;
69 volatile s8 reset;
70 volatile s8 layout;
71};
72
73/*
74 * sunkbd_interrupt() is called by the low level driver when a character
75 * is received.
76 */
77
78static irqreturn_t sunkbd_interrupt(struct serio *serio,
79 unsigned char data, unsigned int flags)
80{
81 struct sunkbd *sunkbd = serio_get_drvdata(serio);
82
83 if (sunkbd->reset <= -1) {
84 /*
85 * If cp[i] is 0xff, sunkbd->reset will stay -1.
86 * The keyboard sends 0xff 0xff 0xID on powerup.
87 */
88 sunkbd->reset = data;
89 wake_up_interruptible(&sunkbd->wait);
90 goto out;
91 }
92
93 if (sunkbd->layout == -1) {
94 sunkbd->layout = data;
95 wake_up_interruptible(&sunkbd->wait);
96 goto out;
97 }
98
99 switch (data) {
100
101 case SUNKBD_RET_RESET:
102 schedule_work(&sunkbd->tq);
103 sunkbd->reset = -1;
104 break;
105
106 case SUNKBD_RET_LAYOUT:
107 sunkbd->layout = -1;
108 break;
109
110 case SUNKBD_RET_ALLUP: /* All keys released */
111 break;
112
113 default:
114 if (!sunkbd->enabled)
115 break;
116
117 if (sunkbd->keycode[data & SUNKBD_KEY]) {
118 input_report_key(sunkbd->dev,
119 sunkbd->keycode[data & SUNKBD_KEY],
120 !(data & SUNKBD_RELEASE));
121 input_sync(sunkbd->dev);
122 } else {
123 printk(KERN_WARNING
124 "sunkbd.c: Unknown key (scancode %#x) %s.\n",
125 data & SUNKBD_KEY,
126 data & SUNKBD_RELEASE ? "released" : "pressed");
127 }
128 }
129out:
130 return IRQ_HANDLED;
131}
132
133/*
134 * sunkbd_event() handles events from the input module.
135 */
136
137static int sunkbd_event(struct input_dev *dev,
138 unsigned int type, unsigned int code, int value)
139{
140 struct sunkbd *sunkbd = input_get_drvdata(dev);
141
142 switch (type) {
143
144 case EV_LED:
145
146 serio_write(sunkbd->serio, SUNKBD_CMD_SETLED);
147 serio_write(sunkbd->serio,
148 (!!test_bit(LED_CAPSL, dev->led) << 3) |
149 (!!test_bit(LED_SCROLLL, dev->led) << 2) |
150 (!!test_bit(LED_COMPOSE, dev->led) << 1) |
151 !!test_bit(LED_NUML, dev->led));
152 return 0;
153
154 case EV_SND:
155
156 switch (code) {
157
158 case SND_CLICK:
159 serio_write(sunkbd->serio, SUNKBD_CMD_NOCLICK - value);
160 return 0;
161
162 case SND_BELL:
163 serio_write(sunkbd->serio, SUNKBD_CMD_BELLOFF - value);
164 return 0;
165 }
166
167 break;
168 }
169
170 return -1;
171}
172
173/*
174 * sunkbd_initialize() checks for a Sun keyboard attached, and determines
175 * its type.
176 */
177
178static int sunkbd_initialize(struct sunkbd *sunkbd)
179{
180 sunkbd->reset = -2;
181 serio_write(sunkbd->serio, SUNKBD_CMD_RESET);
182 wait_event_interruptible_timeout(sunkbd->wait, sunkbd->reset >= 0, HZ);
183 if (sunkbd->reset < 0)
184 return -1;
185
186 sunkbd->type = sunkbd->reset;
187
188 if (sunkbd->type == 4) { /* Type 4 keyboard */
189 sunkbd->layout = -2;
190 serio_write(sunkbd->serio, SUNKBD_CMD_LAYOUT);
191 wait_event_interruptible_timeout(sunkbd->wait,
192 sunkbd->layout >= 0, HZ / 4);
193 if (sunkbd->layout < 0)
194 return -1;
195 if (sunkbd->layout & SUNKBD_LAYOUT_5_MASK)
196 sunkbd->type = 5;
197 }
198
199 return 0;
200}
201
202/*
203 * sunkbd_reinit() sets leds and beeps to a state the computer remembers they
204 * were in.
205 */
206
207static void sunkbd_reinit(struct work_struct *work)
208{
209 struct sunkbd *sunkbd = container_of(work, struct sunkbd, tq);
210
211 wait_event_interruptible_timeout(sunkbd->wait, sunkbd->reset >= 0, HZ);
212
213 serio_write(sunkbd->serio, SUNKBD_CMD_SETLED);
214 serio_write(sunkbd->serio,
215 (!!test_bit(LED_CAPSL, sunkbd->dev->led) << 3) |
216 (!!test_bit(LED_SCROLLL, sunkbd->dev->led) << 2) |
217 (!!test_bit(LED_COMPOSE, sunkbd->dev->led) << 1) |
218 !!test_bit(LED_NUML, sunkbd->dev->led));
219 serio_write(sunkbd->serio,
220 SUNKBD_CMD_NOCLICK - !!test_bit(SND_CLICK, sunkbd->dev->snd));
221 serio_write(sunkbd->serio,
222 SUNKBD_CMD_BELLOFF - !!test_bit(SND_BELL, sunkbd->dev->snd));
223}
224
225static void sunkbd_enable(struct sunkbd *sunkbd, bool enable)
226{
227 serio_pause_rx(sunkbd->serio);
228 sunkbd->enabled = enable;
229 serio_continue_rx(sunkbd->serio);
230}
231
232/*
233 * sunkbd_connect() probes for a Sun keyboard and fills the necessary
234 * structures.
235 */
236
237static int sunkbd_connect(struct serio *serio, struct serio_driver *drv)
238{
239 struct sunkbd *sunkbd;
240 struct input_dev *input_dev;
241 int err = -ENOMEM;
242 int i;
243
244 sunkbd = kzalloc(sizeof(struct sunkbd), GFP_KERNEL);
245 input_dev = input_allocate_device();
246 if (!sunkbd || !input_dev)
247 goto fail1;
248
249 sunkbd->serio = serio;
250 sunkbd->dev = input_dev;
251 init_waitqueue_head(&sunkbd->wait);
252 INIT_WORK(&sunkbd->tq, sunkbd_reinit);
253 snprintf(sunkbd->phys, sizeof(sunkbd->phys), "%s/input0", serio->phys);
254
255 serio_set_drvdata(serio, sunkbd);
256
257 err = serio_open(serio, drv);
258 if (err)
259 goto fail2;
260
261 if (sunkbd_initialize(sunkbd) < 0) {
262 err = -ENODEV;
263 goto fail3;
264 }
265
266 snprintf(sunkbd->name, sizeof(sunkbd->name),
267 "Sun Type %d keyboard", sunkbd->type);
268 memcpy(sunkbd->keycode, sunkbd_keycode, sizeof(sunkbd->keycode));
269
270 input_dev->name = sunkbd->name;
271 input_dev->phys = sunkbd->phys;
272 input_dev->id.bustype = BUS_RS232;
273 input_dev->id.vendor = SERIO_SUNKBD;
274 input_dev->id.product = sunkbd->type;
275 input_dev->id.version = 0x0100;
276 input_dev->dev.parent = &serio->dev;
277
278 input_set_drvdata(input_dev, sunkbd);
279
280 input_dev->event = sunkbd_event;
281
282 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_LED) |
283 BIT_MASK(EV_SND) | BIT_MASK(EV_REP);
284 input_dev->ledbit[0] = BIT_MASK(LED_CAPSL) | BIT_MASK(LED_COMPOSE) |
285 BIT_MASK(LED_SCROLLL) | BIT_MASK(LED_NUML);
286 input_dev->sndbit[0] = BIT_MASK(SND_CLICK) | BIT_MASK(SND_BELL);
287
288 input_dev->keycode = sunkbd->keycode;
289 input_dev->keycodesize = sizeof(unsigned char);
290 input_dev->keycodemax = ARRAY_SIZE(sunkbd_keycode);
291 for (i = 0; i < ARRAY_SIZE(sunkbd_keycode); i++)
292 __set_bit(sunkbd->keycode[i], input_dev->keybit);
293 __clear_bit(KEY_RESERVED, input_dev->keybit);
294
295 sunkbd_enable(sunkbd, true);
296
297 err = input_register_device(sunkbd->dev);
298 if (err)
299 goto fail4;
300
301 return 0;
302
303 fail4: sunkbd_enable(sunkbd, false);
304 fail3: serio_close(serio);
305 fail2: serio_set_drvdata(serio, NULL);
306 fail1: input_free_device(input_dev);
307 kfree(sunkbd);
308 return err;
309}
310
311/*
312 * sunkbd_disconnect() unregisters and closes behind us.
313 */
314
315static void sunkbd_disconnect(struct serio *serio)
316{
317 struct sunkbd *sunkbd = serio_get_drvdata(serio);
318
319 sunkbd_enable(sunkbd, false);
320 input_unregister_device(sunkbd->dev);
321 serio_close(serio);
322 serio_set_drvdata(serio, NULL);
323 kfree(sunkbd);
324}
325
326static const struct serio_device_id sunkbd_serio_ids[] = {
327 {
328 .type = SERIO_RS232,
329 .proto = SERIO_SUNKBD,
330 .id = SERIO_ANY,
331 .extra = SERIO_ANY,
332 },
333 {
334 .type = SERIO_RS232,
335 .proto = SERIO_UNKNOWN, /* sunkbd does probe */
336 .id = SERIO_ANY,
337 .extra = SERIO_ANY,
338 },
339 { 0 }
340};
341
342MODULE_DEVICE_TABLE(serio, sunkbd_serio_ids);
343
344static struct serio_driver sunkbd_drv = {
345 .driver = {
346 .name = "sunkbd",
347 },
348 .description = DRIVER_DESC,
349 .id_table = sunkbd_serio_ids,
350 .interrupt = sunkbd_interrupt,
351 .connect = sunkbd_connect,
352 .disconnect = sunkbd_disconnect,
353};
354
355module_serio_driver(sunkbd_drv);
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) 1999-2001 Vojtech Pavlik
4 */
5
6/*
7 * Sun keyboard driver for Linux
8 */
9
10/*
11 */
12
13#include <linux/delay.h>
14#include <linux/sched.h>
15#include <linux/slab.h>
16#include <linux/module.h>
17#include <linux/interrupt.h>
18#include <linux/input.h>
19#include <linux/serio.h>
20#include <linux/workqueue.h>
21
22#define DRIVER_DESC "Sun keyboard driver"
23
24MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
25MODULE_DESCRIPTION(DRIVER_DESC);
26MODULE_LICENSE("GPL");
27
28static unsigned char sunkbd_keycode[128] = {
29 0,128,114,129,115, 59, 60, 68, 61, 87, 62, 88, 63,100, 64,112,
30 65, 66, 67, 56,103,119, 99, 70,105,130,131,108,106, 1, 2, 3,
31 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 41, 14,110,113, 98, 55,
32 116,132, 83,133,102, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
33 26, 27,111,127, 71, 72, 73, 74,134,135,107, 0, 29, 30, 31, 32,
34 33, 34, 35, 36, 37, 38, 39, 40, 43, 28, 96, 75, 76, 77, 82,136,
35 104,137, 69, 42, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54,101,
36 79, 80, 81, 0, 0, 0,138, 58,125, 57,126,109, 86, 78
37};
38
39#define SUNKBD_CMD_RESET 0x1
40#define SUNKBD_CMD_BELLON 0x2
41#define SUNKBD_CMD_BELLOFF 0x3
42#define SUNKBD_CMD_CLICK 0xa
43#define SUNKBD_CMD_NOCLICK 0xb
44#define SUNKBD_CMD_SETLED 0xe
45#define SUNKBD_CMD_LAYOUT 0xf
46
47#define SUNKBD_RET_RESET 0xff
48#define SUNKBD_RET_ALLUP 0x7f
49#define SUNKBD_RET_LAYOUT 0xfe
50
51#define SUNKBD_LAYOUT_5_MASK 0x20
52#define SUNKBD_RELEASE 0x80
53#define SUNKBD_KEY 0x7f
54
55/*
56 * Per-keyboard data.
57 */
58
59struct sunkbd {
60 unsigned char keycode[ARRAY_SIZE(sunkbd_keycode)];
61 struct input_dev *dev;
62 struct serio *serio;
63 struct work_struct tq;
64 wait_queue_head_t wait;
65 char name[64];
66 char phys[32];
67 char type;
68 bool enabled;
69 volatile s8 reset;
70 volatile s8 layout;
71};
72
73/*
74 * sunkbd_interrupt() is called by the low level driver when a character
75 * is received.
76 */
77
78static irqreturn_t sunkbd_interrupt(struct serio *serio,
79 unsigned char data, unsigned int flags)
80{
81 struct sunkbd *sunkbd = serio_get_drvdata(serio);
82
83 if (sunkbd->reset <= -1) {
84 /*
85 * If cp[i] is 0xff, sunkbd->reset will stay -1.
86 * The keyboard sends 0xff 0xff 0xID on powerup.
87 */
88 sunkbd->reset = data;
89 wake_up_interruptible(&sunkbd->wait);
90 goto out;
91 }
92
93 if (sunkbd->layout == -1) {
94 sunkbd->layout = data;
95 wake_up_interruptible(&sunkbd->wait);
96 goto out;
97 }
98
99 switch (data) {
100
101 case SUNKBD_RET_RESET:
102 if (sunkbd->enabled)
103 schedule_work(&sunkbd->tq);
104 sunkbd->reset = -1;
105 break;
106
107 case SUNKBD_RET_LAYOUT:
108 sunkbd->layout = -1;
109 break;
110
111 case SUNKBD_RET_ALLUP: /* All keys released */
112 break;
113
114 default:
115 if (!sunkbd->enabled)
116 break;
117
118 if (sunkbd->keycode[data & SUNKBD_KEY]) {
119 input_report_key(sunkbd->dev,
120 sunkbd->keycode[data & SUNKBD_KEY],
121 !(data & SUNKBD_RELEASE));
122 input_sync(sunkbd->dev);
123 } else {
124 printk(KERN_WARNING
125 "sunkbd.c: Unknown key (scancode %#x) %s.\n",
126 data & SUNKBD_KEY,
127 data & SUNKBD_RELEASE ? "released" : "pressed");
128 }
129 }
130out:
131 return IRQ_HANDLED;
132}
133
134/*
135 * sunkbd_event() handles events from the input module.
136 */
137
138static int sunkbd_event(struct input_dev *dev,
139 unsigned int type, unsigned int code, int value)
140{
141 struct sunkbd *sunkbd = input_get_drvdata(dev);
142
143 switch (type) {
144
145 case EV_LED:
146
147 serio_write(sunkbd->serio, SUNKBD_CMD_SETLED);
148 serio_write(sunkbd->serio,
149 (!!test_bit(LED_CAPSL, dev->led) << 3) |
150 (!!test_bit(LED_SCROLLL, dev->led) << 2) |
151 (!!test_bit(LED_COMPOSE, dev->led) << 1) |
152 !!test_bit(LED_NUML, dev->led));
153 return 0;
154
155 case EV_SND:
156
157 switch (code) {
158
159 case SND_CLICK:
160 serio_write(sunkbd->serio, SUNKBD_CMD_NOCLICK - value);
161 return 0;
162
163 case SND_BELL:
164 serio_write(sunkbd->serio, SUNKBD_CMD_BELLOFF - value);
165 return 0;
166 }
167
168 break;
169 }
170
171 return -1;
172}
173
174/*
175 * sunkbd_initialize() checks for a Sun keyboard attached, and determines
176 * its type.
177 */
178
179static int sunkbd_initialize(struct sunkbd *sunkbd)
180{
181 sunkbd->reset = -2;
182 serio_write(sunkbd->serio, SUNKBD_CMD_RESET);
183 wait_event_interruptible_timeout(sunkbd->wait, sunkbd->reset >= 0, HZ);
184 if (sunkbd->reset < 0)
185 return -1;
186
187 sunkbd->type = sunkbd->reset;
188
189 if (sunkbd->type == 4) { /* Type 4 keyboard */
190 sunkbd->layout = -2;
191 serio_write(sunkbd->serio, SUNKBD_CMD_LAYOUT);
192 wait_event_interruptible_timeout(sunkbd->wait,
193 sunkbd->layout >= 0, HZ / 4);
194 if (sunkbd->layout < 0)
195 return -1;
196 if (sunkbd->layout & SUNKBD_LAYOUT_5_MASK)
197 sunkbd->type = 5;
198 }
199
200 return 0;
201}
202
203/*
204 * sunkbd_set_leds_beeps() sets leds and beeps to a state the computer remembers
205 * they were in.
206 */
207
208static void sunkbd_set_leds_beeps(struct sunkbd *sunkbd)
209{
210 serio_write(sunkbd->serio, SUNKBD_CMD_SETLED);
211 serio_write(sunkbd->serio,
212 (!!test_bit(LED_CAPSL, sunkbd->dev->led) << 3) |
213 (!!test_bit(LED_SCROLLL, sunkbd->dev->led) << 2) |
214 (!!test_bit(LED_COMPOSE, sunkbd->dev->led) << 1) |
215 !!test_bit(LED_NUML, sunkbd->dev->led));
216 serio_write(sunkbd->serio,
217 SUNKBD_CMD_NOCLICK - !!test_bit(SND_CLICK, sunkbd->dev->snd));
218 serio_write(sunkbd->serio,
219 SUNKBD_CMD_BELLOFF - !!test_bit(SND_BELL, sunkbd->dev->snd));
220}
221
222
223/*
224 * sunkbd_reinit() wait for the keyboard reset to complete and restores state
225 * of leds and beeps.
226 */
227
228static void sunkbd_reinit(struct work_struct *work)
229{
230 struct sunkbd *sunkbd = container_of(work, struct sunkbd, tq);
231
232 /*
233 * It is OK that we check sunkbd->enabled without pausing serio,
234 * as we only want to catch true->false transition that will
235 * happen once and we will be woken up for it.
236 */
237 wait_event_interruptible_timeout(sunkbd->wait,
238 sunkbd->reset >= 0 || !sunkbd->enabled,
239 HZ);
240
241 if (sunkbd->reset >= 0 && sunkbd->enabled)
242 sunkbd_set_leds_beeps(sunkbd);
243}
244
245static void sunkbd_enable(struct sunkbd *sunkbd, bool enable)
246{
247 serio_pause_rx(sunkbd->serio);
248 sunkbd->enabled = enable;
249 serio_continue_rx(sunkbd->serio);
250
251 if (!enable) {
252 wake_up_interruptible(&sunkbd->wait);
253 cancel_work_sync(&sunkbd->tq);
254 }
255}
256
257/*
258 * sunkbd_connect() probes for a Sun keyboard and fills the necessary
259 * structures.
260 */
261
262static int sunkbd_connect(struct serio *serio, struct serio_driver *drv)
263{
264 struct sunkbd *sunkbd;
265 struct input_dev *input_dev;
266 int err = -ENOMEM;
267 int i;
268
269 sunkbd = kzalloc(sizeof(struct sunkbd), GFP_KERNEL);
270 input_dev = input_allocate_device();
271 if (!sunkbd || !input_dev)
272 goto fail1;
273
274 sunkbd->serio = serio;
275 sunkbd->dev = input_dev;
276 init_waitqueue_head(&sunkbd->wait);
277 INIT_WORK(&sunkbd->tq, sunkbd_reinit);
278 snprintf(sunkbd->phys, sizeof(sunkbd->phys), "%s/input0", serio->phys);
279
280 serio_set_drvdata(serio, sunkbd);
281
282 err = serio_open(serio, drv);
283 if (err)
284 goto fail2;
285
286 if (sunkbd_initialize(sunkbd) < 0) {
287 err = -ENODEV;
288 goto fail3;
289 }
290
291 snprintf(sunkbd->name, sizeof(sunkbd->name),
292 "Sun Type %d keyboard", sunkbd->type);
293 memcpy(sunkbd->keycode, sunkbd_keycode, sizeof(sunkbd->keycode));
294
295 input_dev->name = sunkbd->name;
296 input_dev->phys = sunkbd->phys;
297 input_dev->id.bustype = BUS_RS232;
298 input_dev->id.vendor = SERIO_SUNKBD;
299 input_dev->id.product = sunkbd->type;
300 input_dev->id.version = 0x0100;
301 input_dev->dev.parent = &serio->dev;
302
303 input_set_drvdata(input_dev, sunkbd);
304
305 input_dev->event = sunkbd_event;
306
307 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_LED) |
308 BIT_MASK(EV_SND) | BIT_MASK(EV_REP);
309 input_dev->ledbit[0] = BIT_MASK(LED_CAPSL) | BIT_MASK(LED_COMPOSE) |
310 BIT_MASK(LED_SCROLLL) | BIT_MASK(LED_NUML);
311 input_dev->sndbit[0] = BIT_MASK(SND_CLICK) | BIT_MASK(SND_BELL);
312
313 input_dev->keycode = sunkbd->keycode;
314 input_dev->keycodesize = sizeof(unsigned char);
315 input_dev->keycodemax = ARRAY_SIZE(sunkbd_keycode);
316 for (i = 0; i < ARRAY_SIZE(sunkbd_keycode); i++)
317 __set_bit(sunkbd->keycode[i], input_dev->keybit);
318 __clear_bit(KEY_RESERVED, input_dev->keybit);
319
320 sunkbd_enable(sunkbd, true);
321
322 err = input_register_device(sunkbd->dev);
323 if (err)
324 goto fail4;
325
326 return 0;
327
328 fail4: sunkbd_enable(sunkbd, false);
329 fail3: serio_close(serio);
330 fail2: serio_set_drvdata(serio, NULL);
331 fail1: input_free_device(input_dev);
332 kfree(sunkbd);
333 return err;
334}
335
336/*
337 * sunkbd_disconnect() unregisters and closes behind us.
338 */
339
340static void sunkbd_disconnect(struct serio *serio)
341{
342 struct sunkbd *sunkbd = serio_get_drvdata(serio);
343
344 sunkbd_enable(sunkbd, false);
345 input_unregister_device(sunkbd->dev);
346 serio_close(serio);
347 serio_set_drvdata(serio, NULL);
348 kfree(sunkbd);
349}
350
351static const struct serio_device_id sunkbd_serio_ids[] = {
352 {
353 .type = SERIO_RS232,
354 .proto = SERIO_SUNKBD,
355 .id = SERIO_ANY,
356 .extra = SERIO_ANY,
357 },
358 {
359 .type = SERIO_RS232,
360 .proto = SERIO_UNKNOWN, /* sunkbd does probe */
361 .id = SERIO_ANY,
362 .extra = SERIO_ANY,
363 },
364 { 0 }
365};
366
367MODULE_DEVICE_TABLE(serio, sunkbd_serio_ids);
368
369static struct serio_driver sunkbd_drv = {
370 .driver = {
371 .name = "sunkbd",
372 },
373 .description = DRIVER_DESC,
374 .id_table = sunkbd_serio_ids,
375 .interrupt = sunkbd_interrupt,
376 .connect = sunkbd_connect,
377 .disconnect = sunkbd_disconnect,
378};
379
380module_serio_driver(sunkbd_drv);