aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/dvb/firesat/firesat_1394.c
blob: 82bd9786571d229ec159d8e596778a97552eca05 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
/*
 * FireDTV driver (formerly known as FireSAT)
 *
 * Copyright (C) 2004 Andreas Monitzer <andy@monitzer.com>
 * Copyright (C) 2007-2008 Ben Backx <ben@bbackx.com>
 * Copyright (C) 2008 Henrik Kurelid <henrik@kurelid.se>
 *
 *	This program is free software; you can redistribute it and/or
 *	modify it under the terms of the GNU General Public License as
 *	published by the Free Software Foundation; either version 2 of
 *	the License, or (at your option) any later version.
 */

#include <linux/device.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/string.h>
#include <linux/types.h>

#include <dmxdev.h>
#include <dvb_demux.h>
#include <dvb_frontend.h>
#include <dvbdev.h>

#include <csr1212.h>
#include <highlevel.h>
#include <hosts.h>
#include <ieee1394_hotplug.h>
#include <nodemgr.h>

#include "avc_api.h"
#include "cmp.h"
#include "firesat.h"
#include "firesat-ci.h"
#include "firesat-rc.h"

#define MATCH_FLAGS	IEEE1394_MATCH_VENDOR_ID | IEEE1394_MATCH_MODEL_ID | \
			IEEE1394_MATCH_SPECIFIER_ID | IEEE1394_MATCH_VERSION
#define DIGITAL_EVERYWHERE_OUI   0x001287

static struct ieee1394_device_id firesat_id_table[] = {

	{
		/* FloppyDTV S/CI and FloppyDTV S2 */
		.match_flags	= MATCH_FLAGS,
		.vendor_id	= DIGITAL_EVERYWHERE_OUI,
		.model_id	= 0x000024,
		.specifier_id	= AVC_UNIT_SPEC_ID_ENTRY,
		.version	= AVC_SW_VERSION_ENTRY,
	},{
		/* FloppyDTV T/CI */
		.match_flags	= MATCH_FLAGS,
		.vendor_id	= DIGITAL_EVERYWHERE_OUI,
		.model_id	= 0x000025,
		.specifier_id	= AVC_UNIT_SPEC_ID_ENTRY,
		.version	= AVC_SW_VERSION_ENTRY,
	},{
		/* FloppyDTV C/CI */
		.match_flags	= MATCH_FLAGS,
		.vendor_id	= DIGITAL_EVERYWHERE_OUI,
		.model_id	= 0x000026,
		.specifier_id	= AVC_UNIT_SPEC_ID_ENTRY,
		.version	= AVC_SW_VERSION_ENTRY,
	},{
		/* FireDTV S/CI and FloppyDTV S2 */
		.match_flags	= MATCH_FLAGS,
		.vendor_id	= DIGITAL_EVERYWHERE_OUI,
		.model_id	= 0x000034,
		.specifier_id	= AVC_UNIT_SPEC_ID_ENTRY,
		.version	= AVC_SW_VERSION_ENTRY,
	},{
		/* FireDTV T/CI */
		.match_flags	= MATCH_FLAGS,
		.vendor_id	= DIGITAL_EVERYWHERE_OUI,
		.model_id	= 0x000035,
		.specifier_id	= AVC_UNIT_SPEC_ID_ENTRY,
		.version	= AVC_SW_VERSION_ENTRY,
	},{
		/* FireDTV C/CI */
		.match_flags	= MATCH_FLAGS,
		.vendor_id	= DIGITAL_EVERYWHERE_OUI,
		.model_id	= 0x000036,
		.specifier_id	= AVC_UNIT_SPEC_ID_ENTRY,
		.version	= AVC_SW_VERSION_ENTRY,
	}, { }
};

MODULE_DEVICE_TABLE(ieee1394, firesat_id_table);

/* list of all firesat devices */
LIST_HEAD(firesat_list);
spinlock_t firesat_list_lock = SPIN_LOCK_UNLOCKED;

static void fcp_request(struct hpsb_host *host,
			int nodeid,
			int direction,
			int cts,
			u8 *data,
			size_t length)
{
	struct firesat *firesat = NULL;
	struct firesat *firesat_entry;
	unsigned long flags;

	if (length > 0 && ((data[0] & 0xf0) >> 4) == 0) {

		spin_lock_irqsave(&firesat_list_lock, flags);
		list_for_each_entry(firesat_entry,&firesat_list,list) {
			if (firesat_entry->ud->ne->host == host &&
			    firesat_entry->ud->ne->nodeid == nodeid &&
			    (firesat_entry->subunit == (data[1]&0x7) ||
			     (firesat_entry->subunit == 0 &&
			      (data[1]&0x7) == 0x7))) {
				firesat=firesat_entry;
				break;
			}
		}
		spin_unlock_irqrestore(&firesat_list_lock, flags);

		if (firesat)
			avc_recv(firesat, data, length);
	}
}

const char *firedtv_model_names[] = {
	[FireSAT_UNKNOWN] = "unknown type",
	[FireSAT_DVB_S]   = "FireDTV S/CI",
	[FireSAT_DVB_C]   = "FireDTV C/CI",
	[FireSAT_DVB_T]   = "FireDTV T/CI",
	[FireSAT_DVB_S2]  = "FireDTV S2  ",
};

static int firesat_probe(struct device *dev)
{
	struct unit_directory *ud =
			container_of(dev, struct unit_directory, device);
	struct firesat *firesat;
	unsigned long flags;
	int kv_len;
	void *kv_str;
	int i;
	int err = -ENOMEM;

	firesat = kzalloc(sizeof(*firesat), GFP_KERNEL);
	if (!firesat)
		return -ENOMEM;

	dev->driver_data = firesat;
	firesat->ud		= ud;
	firesat->subunit	= 0;
	firesat->isochannel	= -1;
	firesat->tone		= 0xff;
	firesat->voltage	= 0xff;

	mutex_init(&firesat->avc_mutex);
	init_waitqueue_head(&firesat->avc_wait);
	firesat->avc_reply_received = true;
	mutex_init(&firesat->demux_mutex);
	INIT_WORK(&firesat->remote_ctrl_work, avc_remote_ctrl_work);

	/* Reading device model from ROM */
	kv_len = (ud->model_name_kv->value.leaf.len - 2) * sizeof(quadlet_t);
	kv_str = CSR1212_TEXTUAL_DESCRIPTOR_LEAF_DATA(ud->model_name_kv);
	for (i = ARRAY_SIZE(firedtv_model_names); --i;)
		if (strlen(firedtv_model_names[i]) <= kv_len &&
		    strncmp(kv_str, firedtv_model_names[i], kv_len) == 0)
			break;
	firesat->type = i;

	/*
	 * Work around a bug in udev's path_id script:  Use the fw-host's dev
	 * instead of the unit directory's dev as parent of the input device.
	 */
	err = firesat_register_rc(firesat, dev->parent->parent);
	if (err)
		goto fail_free;

	INIT_LIST_HEAD(&firesat->list);
	spin_lock_irqsave(&firesat_list_lock, flags);
	list_add_tail(&firesat->list, &firesat_list);
	spin_unlock_irqrestore(&firesat_list_lock, flags);

	err = avc_identify_subunit(firesat);
	if (err)
		goto fail;

	err = firesat_dvbdev_init(firesat, dev);
	if (err)
		goto fail;

	avc_register_remote_control(firesat);
	return 0;

fail:
	spin_lock_irqsave(&firesat_list_lock, flags);
	list_del(&firesat->list);
	spin_unlock_irqrestore(&firesat_list_lock, flags);
	firesat_unregister_rc(firesat);
fail_free:
	kfree(firesat);
	return err;
}

static int firesat_remove(struct device *dev)
{
	struct firesat *firesat = dev->driver_data;
	unsigned long flags;

	firesat_ca_release(firesat);
	dvb_unregister_frontend(&firesat->fe);
	dvb_net_release(&firesat->dvbnet);
	firesat->demux.dmx.close(&firesat->demux.dmx);
	firesat->demux.dmx.remove_frontend(&firesat->demux.dmx,
					   &firesat->frontend);
	dvb_dmxdev_release(&firesat->dmxdev);
	dvb_dmx_release(&firesat->demux);
	dvb_unregister_adapter(&firesat->adapter);

	spin_lock_irqsave(&firesat_list_lock, flags);
	list_del(&firesat->list);
	spin_unlock_irqrestore(&firesat_list_lock, flags);

	cancel_work_sync(&firesat->remote_ctrl_work);
	firesat_unregister_rc(firesat);

	kfree(firesat);
	return 0;
}

static int firesat_update(struct unit_directory *ud)
{
	struct firesat *firesat = ud->device.driver_data;

	if (firesat->isochannel >= 0)
		cmp_establish_pp_connection(firesat, firesat->subunit,
					    firesat->isochannel);
	return 0;
}

static struct hpsb_protocol_driver firesat_driver = {

	.name		= "firedtv",
	.id_table	= firesat_id_table,
	.update		= firesat_update,

	.driver         = {
		//.name and .bus are filled in for us in more recent linux versions
		//.name	= "FireSAT",
		//.bus	= &ieee1394_bus_type,
		.probe  = firesat_probe,
		.remove = firesat_remove,
	},
};

static struct hpsb_highlevel firesat_highlevel = {
	.name		= "firedtv",
	.fcp_request	= fcp_request,
};

static int __init firesat_init(void)
{
	int ret;

	hpsb_register_highlevel(&firesat_highlevel);
	ret = hpsb_register_protocol(&firesat_driver);
	if (ret) {
		printk(KERN_ERR "firedtv: failed to register protocol\n");
		hpsb_unregister_highlevel(&firesat_highlevel);
	}
	return ret;
}

static void __exit firesat_exit(void)
{
	hpsb_unregister_protocol(&firesat_driver);
	hpsb_unregister_highlevel(&firesat_highlevel);
}

module_init(firesat_init);
module_exit(firesat_exit);

MODULE_AUTHOR("Andreas Monitzer <andy@monitzer.com>");
MODULE_AUTHOR("Ben Backx <ben@bbackx.com>");
MODULE_DESCRIPTION("FireDTV DVB Driver");
MODULE_LICENSE("GPL");
MODULE_SUPPORTED_DEVICE("FireDTV DVB");