add ax88772_rst

hc

2024-05-10 9999e48639b3cecb08ffb37358bcba3b48161b29

 kernel/drivers/media/pci/ttpci/av7110_ir.c
..
..
@@ -1,394 +1,157 @@
1
+// SPDX-License-Identifier: GPL-2.0-or-later
1
2
 /*
2
3
  * Driver for the remote control of SAA7146 based AV7110 cards
3
4
  *
4
5
  * Copyright (C) 1999-2003 Holger Waechtler <holger@convergence.de>
5
6
  * Copyright (C) 2003-2007 Oliver Endriss <o.endriss@gmx.de>
6
- *
7
- * This program is free software; you can redistribute it and/or
8
- * modify it under the terms of the GNU General Public License
9
- * as published by the Free Software Foundation; either version 2
10
- * of the License, or (at your option) any later version.
11
- *
12
- * This program is distributed in the hope that it will be useful,
13
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
14
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15
- * GNU General Public License for more details.
16
- * To obtain the license, point your browser to
17
- * http://www.gnu.org/copyleft/gpl.html
18
- *
7
+ * Copyright (C) 2019 Sean Young <sean@mess.org>
19
8
  */
20
9
 
21
-
22
-#include <linux/types.h>
23
-#include <linux/init.h>
24
-#include <linux/module.h>
25
-#include <linux/proc_fs.h>
26
10
 #include <linux/kernel.h>
27
-#include <linux/bitops.h>
11
+#include <media/rc-core.h>
28
12
 
29
13
 #include "av7110.h"
30
14
 #include "av7110_hw.h"
31
-
32
-
33
-#define AV_CNT		4
34
15
 
35
16
 #define IR_RC5		0
36
17
 #define IR_RCMM		1
37
18
 #define IR_RC5_EXT	2 /* internal only */
38
19
 
39
-#define IR_ALL		0xffffffff
40
-
41
-#define UP_TIMEOUT	(HZ*7/25)
42
-
43
-
44
-/* Note: enable ir debugging by or'ing debug with 16 */
45
-
46
-static int ir_protocol[AV_CNT] = { IR_RCMM, IR_RCMM, IR_RCMM, IR_RCMM};
47
-module_param_array(ir_protocol, int, NULL, 0644);
48
-MODULE_PARM_DESC(ir_protocol, "Infrared protocol: 0 RC5, 1 RCMM (default)");
49
-
50
-static int ir_inversion[AV_CNT];
51
-module_param_array(ir_inversion, int, NULL, 0644);
52
-MODULE_PARM_DESC(ir_inversion, "Inversion of infrared signal: 0 not inverted (default), 1 inverted");
53
-
54
-static uint ir_device_mask[AV_CNT] = { IR_ALL, IR_ALL, IR_ALL, IR_ALL };
55
-module_param_array(ir_device_mask, uint, NULL, 0644);
56
-MODULE_PARM_DESC(ir_device_mask, "Bitmask of infrared devices: bit 0..31 = device 0..31 (default: all)");
57
-
58
-
59
-static int av_cnt;
60
-static struct av7110 *av_list[AV_CNT];
61
-
62
-static u16 default_key_map [256] = {
63
-	KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5, KEY_6, KEY_7,
64
-	KEY_8, KEY_9, KEY_BACK, 0, KEY_POWER, KEY_MUTE, 0, KEY_INFO,
65
-	KEY_VOLUMEUP, KEY_VOLUMEDOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
66
-	KEY_CHANNELUP, KEY_CHANNELDOWN, 0, 0, 0, 0, 0, 0,
67
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
68
-	0, 0, 0, 0, KEY_TEXT, 0, 0, KEY_TV, 0, 0, 0, 0, 0, KEY_SETUP, 0, 0,
69
-	0, 0, 0, KEY_SUBTITLE, 0, 0, KEY_LANGUAGE, 0,
70
-	KEY_RADIO, 0, 0, 0, 0, KEY_EXIT, 0, 0,
71
-	KEY_UP, KEY_DOWN, KEY_LEFT, KEY_RIGHT, KEY_OK, 0, 0, 0,
72
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_RED, KEY_GREEN, KEY_YELLOW,
73
-	KEY_BLUE, 0, 0, 0, 0, 0, 0, 0, KEY_MENU, KEY_LIST, 0, 0, 0, 0, 0, 0,
74
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
75
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
76
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
77
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
78
-	0, 0, 0, 0, KEY_UP, KEY_UP, KEY_DOWN, KEY_DOWN,
79
-	0, 0, 0, 0, KEY_EPG, 0, 0, 0,
80
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
81
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
82
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_VCR
83
-};
84
-
85
-
86
-/* key-up timer */
87
-static void av7110_emit_keyup(struct timer_list *t)
20
+/* interrupt handler */
21
+void av7110_ir_handler(struct av7110 *av7110, u32 ircom)
88
22
 {
89
-	struct infrared *ir = from_timer(ir, t, keyup_timer);
23
+	struct rc_dev *rcdev = av7110->ir.rcdev;
24
+	enum rc_proto proto;
25
+	u32 command, addr, scancode;
26
+	u32 toggle;
90
27
 
91
-	if (!ir || !ir->keypressed)
92
-		return;
28
+	dprintk(4, "ir command = %08x\n", ircom);
93
29
 
94
-	input_report_key(ir->input_dev, ir->last_key, 0);
95
-	input_sync(ir->input_dev);
96
-	ir->keypressed = false;
97
-}
98
-
99
-
100
-/* tasklet */
101
-static void av7110_emit_key(unsigned long parm)
102
-{
103
-	struct infrared *ir = (struct infrared *) parm;
104
-	u32 ircom = ir->ir_command;
105
-	u8 data;
106
-	u8 addr;
107
-	u16 toggle;
108
-	u16 keycode;
109
-
110
-	/* extract device address and data */
111
-	switch (ir->protocol) {
112
-	case IR_RC5: /* RC5: 5 bits device address, 6 bits data */
113
-		data = ircom & 0x3f;
114
-		addr = (ircom >> 6) & 0x1f;
115
-		toggle = ircom & 0x0800;
116
-		break;
117
-
118
-	case IR_RCMM: /* RCMM: ? bits device address, ? bits data */
119
-		data = ircom & 0xff;
120
-		addr = (ircom >> 8) & 0x1f;
121
-		toggle = ircom & 0x8000;
122
-		break;
123
-
124
-	case IR_RC5_EXT: /* extended RC5: 5 bits device address, 7 bits data */
125
-		data = ircom & 0x3f;
126
-		addr = (ircom >> 6) & 0x1f;
127
-		/* invert 7th data bit for backward compatibility with RC5 keymaps */
128
-		if (!(ircom & 0x1000))
129
-			data |= 0x40;
130
-		toggle = ircom & 0x0800;
131
-		break;
132
-
133
-	default:
134
-		printk("%s invalid protocol %x\n", __func__, ir->protocol);
135
-		return;
136
-	}
137
-
138
-	input_event(ir->input_dev, EV_MSC, MSC_RAW, (addr << 16) | data);
139
-	input_event(ir->input_dev, EV_MSC, MSC_SCAN, data);
140
-
141
-	keycode = ir->key_map[data];
142
-
143
-	dprintk(16, "%s: code %08x -> addr %i data 0x%02x -> keycode %i\n",
144
-		__func__, ircom, addr, data, keycode);
145
-
146
-	/* check device address */
147
-	if (!(ir->device_mask & (1 << addr)))
148
-		return;
149
-
150
-	if (!keycode) {
151
-		printk ("%s: code %08x -> addr %i data 0x%02x -> unknown key!\n",
152
-			__func__, ircom, addr, data);
153
-		return;
154
-	}
155
-
156
-	if (ir->keypressed &&
157
-	    (ir->last_key != keycode || toggle != ir->last_toggle))
158
-		input_event(ir->input_dev, EV_KEY, ir->last_key, 0);
159
-
160
-	input_event(ir->input_dev, EV_KEY, keycode, 1);
161
-	input_sync(ir->input_dev);
162
-
163
-	ir->keypressed = true;
164
-	ir->last_key = keycode;
165
-	ir->last_toggle = toggle;
166
-
167
-	mod_timer(&ir->keyup_timer, jiffies + UP_TIMEOUT);
168
-}
169
-
170
-
171
-/* register with input layer */
172
-static void input_register_keys(struct infrared *ir)
173
-{
174
-	int i;
175
-
176
-	set_bit(EV_KEY, ir->input_dev->evbit);
177
-	set_bit(EV_REP, ir->input_dev->evbit);
178
-	set_bit(EV_MSC, ir->input_dev->evbit);
179
-
180
-	set_bit(MSC_RAW, ir->input_dev->mscbit);
181
-	set_bit(MSC_SCAN, ir->input_dev->mscbit);
182
-
183
-	memset(ir->input_dev->keybit, 0, sizeof(ir->input_dev->keybit));
184
-
185
-	for (i = 0; i < ARRAY_SIZE(ir->key_map); i++) {
186
-		if (ir->key_map[i] > KEY_MAX)
187
-			ir->key_map[i] = 0;
188
-		else if (ir->key_map[i] > KEY_RESERVED)
189
-			set_bit(ir->key_map[i], ir->input_dev->keybit);
190
-	}
191
-
192
-	ir->input_dev->keycode = ir->key_map;
193
-	ir->input_dev->keycodesize = sizeof(ir->key_map[0]);
194
-	ir->input_dev->keycodemax = ARRAY_SIZE(ir->key_map);
195
-}
196
-
197
-/* check for configuration changes */
198
-int av7110_check_ir_config(struct av7110 *av7110, int force)
199
-{
200
-	int i;
201
-	int modified = force;
202
-	int ret = -ENODEV;
203
-
204
-	for (i = 0; i < av_cnt; i++)
205
-		if (av7110 == av_list[i])
30
+	if (rcdev) {
31
+		switch (av7110->ir.ir_config) {
32
+		case IR_RC5: /* RC5: 5 bits device address, 6 bits command */
33
+			command = ircom & 0x3f;
34
+			addr = (ircom >> 6) & 0x1f;
35
+			scancode = RC_SCANCODE_RC5(addr, command);
36
+			toggle = ircom & 0x0800;
37
+			proto = RC_PROTO_RC5;
206
38
 			break;
207
39
 
208
-	if (i < av_cnt && av7110) {
209
-		if ((av7110->ir.protocol & 1) != ir_protocol[i] ||
210
-		    av7110->ir.inversion != ir_inversion[i])
211
-			modified = true;
40
+		case IR_RCMM: /* RCMM: 32 bits scancode */
41
+			scancode = ircom & ~0x8000;
42
+			toggle = ircom & 0x8000;
43
+			proto = RC_PROTO_RCMM32;
44
+			break;
212
45
 
213
-		if (modified) {
214
-			/* protocol */
215
-			if (ir_protocol[i]) {
216
-				ir_protocol[i] = 1;
217
-				av7110->ir.protocol = IR_RCMM;
218
-				av7110->ir.ir_config = 0x0001;
219
-			} else if (FW_VERSION(av7110->arm_app) >= 0x2620) {
220
-				av7110->ir.protocol = IR_RC5_EXT;
221
-				av7110->ir.ir_config = 0x0002;
222
-			} else {
223
-				av7110->ir.protocol = IR_RC5;
224
-				av7110->ir.ir_config = 0x0000;
225
-			}
226
-			/* inversion */
227
-			if (ir_inversion[i]) {
228
-				ir_inversion[i] = 1;
229
-				av7110->ir.ir_config |= 0x8000;
230
-			}
231
-			av7110->ir.inversion = ir_inversion[i];
232
-			/* update ARM */
233
-			ret = av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, SetIR, 1,
234
-						av7110->ir.ir_config);
235
-		} else
236
-			ret = 0;
46
+		case IR_RC5_EXT:
47
+			/*
48
+			 * extended RC5: 5 bits device address, 7 bits command
49
+			 *
50
+			 * Extended RC5 uses only one start bit. The second
51
+			 * start bit is re-assigned bit 6 of the command bit.
52
+			 */
53
+			command = ircom & 0x3f;
54
+			addr = (ircom >> 6) & 0x1f;
55
+			if (!(ircom & 0x1000))
56
+				command |= 0x40;
57
+			scancode = RC_SCANCODE_RC5(addr, command);
58
+			toggle = ircom & 0x0800;
59
+			proto = RC_PROTO_RC5;
60
+			break;
61
+		default:
62
+			dprintk(2, "unknown ir config %d\n",
63
+				av7110->ir.ir_config);
64
+			return;
65
+		}
237
66
 
238
-		/* address */
239
-		if (av7110->ir.device_mask != ir_device_mask[i])
240
-			av7110->ir.device_mask = ir_device_mask[i];
67
+		rc_keydown(rcdev, proto, scancode, toggle != 0);
68
+	}
69
+}
70
+
71
+int av7110_set_ir_config(struct av7110 *av7110)
72
+{
73
+	dprintk(4, "ir config = %08x\n", av7110->ir.ir_config);
74
+
75
+	return av7110_fw_cmd(av7110, COMTYPE_PIDFILTER, SetIR, 1,
76
+			     av7110->ir.ir_config);
77
+}
78
+
79
+static int change_protocol(struct rc_dev *rcdev, u64 *rc_type)
80
+{
81
+	struct av7110 *av7110 = rcdev->priv;
82
+	u32 ir_config;
83
+
84
+	if (*rc_type & RC_PROTO_BIT_RCMM32) {
85
+		ir_config = IR_RCMM;
86
+		*rc_type = RC_PROTO_BIT_RCMM32;
87
+	} else if (*rc_type & RC_PROTO_BIT_RC5) {
88
+		if (FW_VERSION(av7110->arm_app) >= 0x2620)
89
+			ir_config = IR_RC5_EXT;
90
+		else
91
+			ir_config = IR_RC5;
92
+		*rc_type = RC_PROTO_BIT_RC5;
93
+	} else {
94
+		return -EINVAL;
95
+	}
96
+
97
+	if (ir_config == av7110->ir.ir_config)
98
+		return 0;
99
+
100
+	av7110->ir.ir_config = ir_config;
101
+
102
+	return av7110_set_ir_config(av7110);
103
+}
104
+
105
+int av7110_ir_init(struct av7110 *av7110)
106
+{
107
+	struct rc_dev *rcdev;
108
+	struct pci_dev *pci;
109
+	int ret;
110
+
111
+	rcdev = rc_allocate_device(RC_DRIVER_SCANCODE);
112
+	if (!rcdev)
113
+		return -ENOMEM;
114
+
115
+	pci = av7110->dev->pci;
116
+
117
+	snprintf(av7110->ir.input_phys, sizeof(av7110->ir.input_phys),
118
+		 "pci-%s/ir0", pci_name(pci));
119
+
120
+	rcdev->device_name = av7110->card_name;
121
+	rcdev->driver_name = KBUILD_MODNAME;
122
+	rcdev->input_phys = av7110->ir.input_phys;
123
+	rcdev->input_id.bustype = BUS_PCI;
124
+	rcdev->input_id.version = 2;
125
+	if (pci->subsystem_vendor) {
126
+		rcdev->input_id.vendor	= pci->subsystem_vendor;
127
+		rcdev->input_id.product = pci->subsystem_device;
128
+	} else {
129
+		rcdev->input_id.vendor	= pci->vendor;
130
+		rcdev->input_id.product = pci->device;
131
+	}
132
+
133
+	rcdev->dev.parent = &pci->dev;
134
+	rcdev->allowed_protocols = RC_PROTO_BIT_RC5 | RC_PROTO_BIT_RCMM32;
135
+	rcdev->change_protocol = change_protocol;
136
+	rcdev->map_name = RC_MAP_HAUPPAUGE;
137
+	rcdev->priv = av7110;
138
+
139
+	av7110->ir.rcdev = rcdev;
140
+	av7110->ir.ir_config = IR_RC5;
141
+	av7110_set_ir_config(av7110);
142
+
143
+	ret = rc_register_device(rcdev);
144
+	if (ret) {
145
+		av7110->ir.rcdev = NULL;
146
+		rc_free_device(rcdev);
241
147
 	}
242
148
 
243
149
 	return ret;
244
150
 }
245
151
 
246
-
247
-/* /proc/av7110_ir interface */
248
-static ssize_t av7110_ir_proc_write(struct file *file, const char __user *buffer,
249
-				    size_t count, loff_t *pos)
250
-{
251
-	char *page;
252
-	u32 ir_config;
253
-	int size = sizeof ir_config + sizeof av_list[0]->ir.key_map;
254
-	int i;
255
-
256
-	if (count < size)
257
-		return -EINVAL;
258
-
259
-	page = vmalloc(size);
260
-	if (!page)
261
-		return -ENOMEM;
262
-
263
-	if (copy_from_user(page, buffer, size)) {
264
-		vfree(page);
265
-		return -EFAULT;
266
-	}
267
-
268
-	memcpy(&ir_config, page, sizeof ir_config);
269
-
270
-	for (i = 0; i < av_cnt; i++) {
271
-		/* keymap */
272
-		memcpy(av_list[i]->ir.key_map, page + sizeof ir_config,
273
-			sizeof(av_list[i]->ir.key_map));
274
-		/* protocol, inversion, address */
275
-		ir_protocol[i] = ir_config & 0x0001;
276
-		ir_inversion[i] = ir_config & 0x8000 ? 1 : 0;
277
-		if (ir_config & 0x4000)
278
-			ir_device_mask[i] = 1 << ((ir_config >> 16) & 0x1f);
279
-		else
280
-			ir_device_mask[i] = IR_ALL;
281
-		/* update configuration */
282
-		av7110_check_ir_config(av_list[i], false);
283
-		input_register_keys(&av_list[i]->ir);
284
-	}
285
-	vfree(page);
286
-	return count;
287
-}
288
-
289
-static const struct file_operations av7110_ir_proc_fops = {
290
-	.owner		= THIS_MODULE,
291
-	.write		= av7110_ir_proc_write,
292
-	.llseek		= noop_llseek,
293
-};
294
-
295
-/* interrupt handler */
296
-static void ir_handler(struct av7110 *av7110, u32 ircom)
297
-{
298
-	dprintk(4, "ir command = %08x\n", ircom);
299
-	av7110->ir.ir_command = ircom;
300
-	tasklet_schedule(&av7110->ir.ir_tasklet);
301
-}
302
-
303
-
304
-int av7110_ir_init(struct av7110 *av7110)
305
-{
306
-	struct input_dev *input_dev;
307
-	static struct proc_dir_entry *e;
308
-	int err;
309
-
310
-	if (av_cnt >= ARRAY_SIZE(av_list))
311
-		return -ENOSPC;
312
-
313
-	av_list[av_cnt++] = av7110;
314
-	av7110_check_ir_config(av7110, true);
315
-
316
-	timer_setup(&av7110->ir.keyup_timer, av7110_emit_keyup, 0);
317
-
318
-	input_dev = input_allocate_device();
319
-	if (!input_dev)
320
-		return -ENOMEM;
321
-
322
-	av7110->ir.input_dev = input_dev;
323
-	snprintf(av7110->ir.input_phys, sizeof(av7110->ir.input_phys),
324
-		"pci-%s/ir0", pci_name(av7110->dev->pci));
325
-
326
-	input_dev->name = "DVB on-card IR receiver";
327
-
328
-	input_dev->phys = av7110->ir.input_phys;
329
-	input_dev->id.bustype = BUS_PCI;
330
-	input_dev->id.version = 2;
331
-	if (av7110->dev->pci->subsystem_vendor) {
332
-		input_dev->id.vendor = av7110->dev->pci->subsystem_vendor;
333
-		input_dev->id.product = av7110->dev->pci->subsystem_device;
334
-	} else {
335
-		input_dev->id.vendor = av7110->dev->pci->vendor;
336
-		input_dev->id.product = av7110->dev->pci->device;
337
-	}
338
-	input_dev->dev.parent = &av7110->dev->pci->dev;
339
-	/* initial keymap */
340
-	memcpy(av7110->ir.key_map, default_key_map, sizeof av7110->ir.key_map);
341
-	input_register_keys(&av7110->ir);
342
-	err = input_register_device(input_dev);
343
-	if (err) {
344
-		input_free_device(input_dev);
345
-		return err;
346
-	}
347
-
348
-	/*
349
-	 * Input core's default autorepeat is 33 cps with 250 msec
350
-	 * delay, let's adjust to numbers more suitable for remote
351
-	 * control.
352
-	 */
353
-	input_enable_softrepeat(input_dev, 250, 125);
354
-
355
-	if (av_cnt == 1) {
356
-		e = proc_create("av7110_ir", S_IWUSR, NULL, &av7110_ir_proc_fops);
357
-		if (e)
358
-			proc_set_size(e, 4 + 256 * sizeof(u16));
359
-	}
360
-
361
-	tasklet_init(&av7110->ir.ir_tasklet, av7110_emit_key, (unsigned long) &av7110->ir);
362
-	av7110->ir.ir_handler = ir_handler;
363
-
364
-	return 0;
365
-}
366
-
367
-
368
152
 void av7110_ir_exit(struct av7110 *av7110)
369
153
 {
370
-	int i;
371
-
372
-	if (av_cnt == 0)
373
-		return;
374
-
375
-	del_timer_sync(&av7110->ir.keyup_timer);
376
-	av7110->ir.ir_handler = NULL;
377
-	tasklet_kill(&av7110->ir.ir_tasklet);
378
-
379
-	for (i = 0; i < av_cnt; i++)
380
-		if (av_list[i] == av7110) {
381
-			av_list[i] = av_list[av_cnt-1];
382
-			av_list[av_cnt-1] = NULL;
383
-			break;
384
-		}
385
-
386
-	if (av_cnt == 1)
387
-		remove_proc_entry("av7110_ir", NULL);
388
-
389
-	input_unregister_device(av7110->ir.input_dev);
390
-
391
-	av_cnt--;
154
+	rc_unregister_device(av7110->ir.rcdev);
392
155
 }
393
156
 
394
157
 //MODULE_AUTHOR("Holger Waechtler <holger@convergence.de>, Oliver Endriss <o.endriss@gmx.de>");