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authorGreg Kroah-Hartman <gregkh@suse.de>2008-03-07 00:30:23 -0500
committerStefan Richter <stefanr@s5r6.in-berlin.de>2009-02-24 08:51:25 -0500
commitc81c8b68b46752721b0c1addfabb828da27e1489 (patch)
tree59d2a336150ce59780b73ba8dc59a829e217b2d0 /drivers/media/dvb/firesat/firesat_1394.c
parentf7e603ad8f78cd3b59e33fa72707da0cbabdf699 (diff)
DVB: add firesat driver
Original code written by Christian Dolzer <c.dolzer@digital-everywhere.com> Cleaned up by Greg. Major cleanup and reorg by Manu Abraham <manu@linuxtv.org> Additions also by Ben Backx <ben@bbackx.com> Cc: Christian Dolzer <c.dolzer@digital-everywhere.com> Cc: Andreas Monitzer <andy@monitzer.com> Cc: Manu Abraham <manu@linuxtv.org> Cc: Fabio De Lorenzo <delorenzo.fabio@gmail.com> Cc: Robert Berger <robert.berger@reliableembeddedsystems.com> Signed-off-by: Ben Backx <ben@bbackx.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Added missing dependency to dvb/firesat/Kconfig, Reported-by: Randy Dunlap <randy.dunlap@oracle.com> Tweaked dvb/Makefile. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/media/dvb/firesat/firesat_1394.c')
-rw-r--r--drivers/media/dvb/firesat/firesat_1394.c468
1 files changed, 468 insertions, 0 deletions
diff --git a/drivers/media/dvb/firesat/firesat_1394.c b/drivers/media/dvb/firesat/firesat_1394.c
new file mode 100644
index 000000000000..c7ccf633c24b
--- /dev/null
+++ b/drivers/media/dvb/firesat/firesat_1394.c
@@ -0,0 +1,468 @@
1/*
2 * FireSAT DVB driver
3 *
4 * Copyright (c) 2004 Andreas Monitzer <andy@monitzer.com>
5 * Copyright (c) 2007-2008 Ben Backx <ben@bbackx.com>
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 as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
11 */
12
13#include <linux/init.h>
14#include <linux/slab.h>
15#include <linux/wait.h>
16#include <linux/module.h>
17#include <linux/delay.h>
18#include <linux/time.h>
19#include <linux/errno.h>
20#include <linux/interrupt.h>
21#include <linux/semaphore.h>
22#include <ieee1394_hotplug.h>
23#include <nodemgr.h>
24#include <highlevel.h>
25#include <ohci1394.h>
26#include <hosts.h>
27#include <dvbdev.h>
28
29#include "firesat.h"
30#include "avc_api.h"
31#include "cmp.h"
32#include "firesat-rc.h"
33#include "firesat-ci.h"
34
35#define FIRESAT_Vendor_ID 0x001287
36
37static struct ieee1394_device_id firesat_id_table[] = {
38
39 {
40 /* FloppyDTV S/CI and FloppyDTV S2 */
41 .match_flags = IEEE1394_MATCH_MODEL_ID | IEEE1394_MATCH_SPECIFIER_ID,
42 .model_id = 0x000024,
43 .specifier_id = AVC_UNIT_SPEC_ID_ENTRY & 0xffffff,
44 },{
45 /* FloppyDTV T/CI */
46 .match_flags = IEEE1394_MATCH_MODEL_ID | IEEE1394_MATCH_SPECIFIER_ID,
47 .model_id = 0x000025,
48 .specifier_id = AVC_UNIT_SPEC_ID_ENTRY & 0xffffff,
49 },{
50 /* FloppyDTV C/CI */
51 .match_flags = IEEE1394_MATCH_MODEL_ID | IEEE1394_MATCH_SPECIFIER_ID,
52 .model_id = 0x000026,
53 .specifier_id = AVC_UNIT_SPEC_ID_ENTRY & 0xffffff,
54 },{
55 /* FireDTV S/CI and FloppyDTV S2 */
56 .match_flags = IEEE1394_MATCH_MODEL_ID | IEEE1394_MATCH_SPECIFIER_ID,
57 .model_id = 0x000034,
58 .specifier_id = AVC_UNIT_SPEC_ID_ENTRY & 0xffffff,
59 },{
60 /* FireDTV T/CI */
61 .match_flags = IEEE1394_MATCH_MODEL_ID | IEEE1394_MATCH_SPECIFIER_ID,
62 .model_id = 0x000035,
63 .specifier_id = AVC_UNIT_SPEC_ID_ENTRY & 0xffffff,
64 },{
65 /* FireDTV C/CI */
66 .match_flags = IEEE1394_MATCH_MODEL_ID | IEEE1394_MATCH_SPECIFIER_ID,
67 .model_id = 0x000036,
68 .specifier_id = AVC_UNIT_SPEC_ID_ENTRY & 0xffffff,
69 }, { }
70};
71
72MODULE_DEVICE_TABLE(ieee1394, firesat_id_table);
73
74/* list of all firesat devices */
75LIST_HEAD(firesat_list);
76spinlock_t firesat_list_lock = SPIN_LOCK_UNLOCKED;
77
78static void firesat_add_host(struct hpsb_host *host);
79static void firesat_remove_host(struct hpsb_host *host);
80static void firesat_host_reset(struct hpsb_host *host);
81
82/*
83static void iso_receive(struct hpsb_host *host, int channel, quadlet_t *data,
84 size_t length);
85*/
86
87static void fcp_request(struct hpsb_host *host,
88 int nodeid,
89 int direction,
90 int cts,
91 u8 *data,
92 size_t length);
93
94static struct hpsb_highlevel firesat_highlevel = {
95 .name = "FireSAT",
96 .add_host = firesat_add_host,
97 .remove_host = firesat_remove_host,
98 .host_reset = firesat_host_reset,
99// FIXME .iso_receive = iso_receive,
100 .fcp_request = fcp_request,
101};
102
103static void firesat_add_host (struct hpsb_host *host)
104{
105 struct ti_ohci *ohci = (struct ti_ohci *)host->hostdata;
106
107 /* We only work with the OHCI-1394 driver */
108 if (strcmp(host->driver->name, OHCI1394_DRIVER_NAME))
109 return;
110
111 if (!hpsb_create_hostinfo(&firesat_highlevel, host, 0)) {
112 printk(KERN_ERR "Cannot allocate hostinfo\n");
113 return;
114 }
115
116 hpsb_set_hostinfo(&firesat_highlevel, host, ohci);
117 hpsb_set_hostinfo_key(&firesat_highlevel, host, ohci->host->id);
118}
119
120static void firesat_remove_host (struct hpsb_host *host)
121{
122
123}
124
125static void firesat_host_reset(struct hpsb_host *host)
126{
127 printk(KERN_INFO "FireSAT host_reset (nodeid = 0x%x, hosts active = %d)\n",host->node_id,host->nodes_active);
128}
129
130struct firewireheader {
131 union {
132 struct {
133 unsigned char tcode:4;
134 unsigned char sy:4;
135 unsigned char tag:2;
136 unsigned char channel:6;
137
138 unsigned char length_l;
139 unsigned char length_h;
140 } hdr;
141 unsigned long val;
142 };
143};
144
145struct CIPHeader {
146 union {
147 struct {
148 unsigned char syncbits:2;
149 unsigned char sid:6;
150 unsigned char dbs;
151 unsigned char fn:2;
152 unsigned char qpc:3;
153 unsigned char sph:1;
154 unsigned char rsv:2;
155 unsigned char dbc;
156 unsigned char syncbits2:2;
157 unsigned char fmt:6;
158 unsigned long fdf:24;
159 } cip;
160 unsigned long long val;
161 };
162};
163
164struct MPEG2Header {
165 union {
166 struct {
167 unsigned char sync; // must be 0x47
168 unsigned char transport_error_indicator:1;
169 unsigned char payload_unit_start_indicator:1;
170 unsigned char transport_priority:1;
171 unsigned short pid:13;
172 unsigned char transport_scrambling_control:2;
173 unsigned char adaption_field_control:2;
174 unsigned char continuity_counter:4;
175 } hdr;
176 unsigned long val;
177 };
178};
179
180#if 0
181static void iso_receive(struct hpsb_host *host,
182 int channel,
183 quadlet_t *data,
184 size_t length)
185{
186 struct firesat *firesat = NULL;
187 struct firesat *firesat_entry;
188 unsigned long flags;
189
190// printk(KERN_INFO "FireSAT iso_receive: channel %d, length = %d\n", channel, length);
191
192 if (length <= 12)
193 return; // ignore empty packets
194 else {
195
196 spin_lock_irqsave(&firesat_list_lock, flags);
197 list_for_each_entry(firesat_entry,&firesat_list,list) {
198 if(firesat_entry->host == host && firesat_entry->isochannel == channel) {
199 firesat=firesat_entry;
200 break;
201 }
202 }
203 spin_unlock_irqrestore(&firesat_list_lock, flags);
204
205 if (firesat) {
206 char *buf= ((char*)data) + sizeof(struct firewireheader)+sizeof(struct CIPHeader);
207 int count = (length-sizeof(struct CIPHeader)) / 192;
208
209// printk(KERN_INFO "%s: length = %u\n data[0] = %08x\n data[1] = %08x\n data[2] = %08x\n data[3] = %08x\n data[4] = %08x\n",__func__, length, data[0],data[1],data[2],data[3],data[4]);
210
211 while (count--) {
212
213 if (buf[sizeof(quadlet_t) /*timestamp*/] == 0x47)
214 dvb_dmx_swfilter_packets(&firesat->demux, &buf[sizeof(quadlet_t)], 1);
215 else
216 printk("%s: invalid packet, skipping\n", __func__);
217 buf += 188 + sizeof (quadlet_t) /* timestamp */;
218 }
219 }
220 }
221}
222#endif
223
224static void fcp_request(struct hpsb_host *host,
225 int nodeid,
226 int direction,
227 int cts,
228 u8 *data,
229 size_t length)
230{
231 struct firesat *firesat = NULL;
232 struct firesat *firesat_entry;
233 unsigned long flags;
234
235 if (length > 0 && ((data[0] & 0xf0) >> 4) == 0) {
236
237 spin_lock_irqsave(&firesat_list_lock, flags);
238 list_for_each_entry(firesat_entry,&firesat_list,list) {
239 if (firesat_entry->host == host &&
240 firesat_entry->nodeentry->nodeid == nodeid &&
241 (firesat_entry->subunit == (data[1]&0x7) ||
242 (firesat_entry->subunit == 0 &&
243 (data[1]&0x7) == 0x7))) {
244 firesat=firesat_entry;
245 break;
246 }
247 }
248 spin_unlock_irqrestore(&firesat_list_lock, flags);
249
250 if (firesat)
251 AVCRecv(firesat,data,length);
252 else
253 printk("%s: received fcp request from unknown source, ignored\n", __func__);
254 } // else ignore
255}
256
257static int firesat_probe(struct device *dev)
258{
259 struct unit_directory *ud = container_of(dev, struct unit_directory, device);
260 struct firesat *firesat;
261 struct dvb_frontend *fe;
262 unsigned long flags;
263 int result;
264 unsigned char subunitcount = 0xff, subunit;
265 struct firesat **firesats = kmalloc(sizeof (void*) * 2,GFP_KERNEL);
266
267 if (!firesats) {
268 printk("%s: couldn't allocate memory.\n", __func__);
269 return -ENOMEM;
270 }
271
272// printk(KERN_INFO "FireSAT: Detected device with GUID %08lx%04lx%04lx\n",(unsigned long)((ud->ne->guid)>>32),(unsigned long)(ud->ne->guid & 0xFFFF),(unsigned long)ud->ne->guid_vendor_id);
273 printk(KERN_INFO "%s: loading device\n", __func__);
274
275 firesats[0] = NULL;
276 firesats[1] = NULL;
277
278 ud->device.driver_data = firesats;
279
280 for (subunit = 0; subunit < subunitcount; subunit++) {
281
282 if (!(firesat = kmalloc(sizeof (struct firesat), GFP_KERNEL)) ||
283 !(fe = kmalloc(sizeof (struct dvb_frontend), GFP_KERNEL))) {
284
285 printk("%s: couldn't allocate memory.\n", __func__);
286 kfree(firesats);
287 return -ENOMEM;
288 }
289
290 memset(firesat, 0, sizeof (struct firesat));
291
292 firesat->host = ud->ne->host;
293 firesat->guid = ud->ne->guid;
294 firesat->guid_vendor_id = ud->ne->guid_vendor_id;
295 firesat->nodeentry = ud->ne;
296 firesat->isochannel = -1;
297 firesat->tone = 0xff;
298 firesat->voltage = 0xff;
299
300 if (!(firesat->respfrm = kmalloc(sizeof (AVCRspFrm), GFP_KERNEL))) {
301 printk("%s: couldn't allocate memory.\n", __func__);
302 kfree(firesat);
303 return -ENOMEM;
304 }
305
306 sema_init(&firesat->avc_sem, 1);
307 atomic_set(&firesat->avc_reply_received, 1);
308 sema_init(&firesat->demux_sem, 1);
309 atomic_set(&firesat->reschedule_remotecontrol, 0);
310
311 spin_lock_irqsave(&firesat_list_lock, flags);
312 INIT_LIST_HEAD(&firesat->list);
313 list_add_tail(&firesat->list, &firesat_list);
314 spin_unlock_irqrestore(&firesat_list_lock, flags);
315
316 if (subunit == 0) {
317 firesat->subunit = 0x7; // 0x7 = don't care
318 if (AVCSubUnitInfo(firesat, &subunitcount)) {
319 printk("%s: AVC subunit info command failed.\n",__func__);
320 spin_lock_irqsave(&firesat_list_lock, flags);
321 list_del(&firesat->list);
322 spin_unlock_irqrestore(&firesat_list_lock, flags);
323 kfree(firesat);
324 return -EIO;
325 }
326 }
327
328 printk(KERN_INFO "%s: subunit count = %d\n", __func__, subunitcount);
329
330 firesat->subunit = subunit;
331
332 if (AVCIdentifySubunit(firesat, NULL, (int*)&firesat->type, &firesat->has_ci)) {
333 printk("%s: cannot identify subunit %d\n", __func__, subunit);
334 spin_lock_irqsave(&firesat_list_lock, flags);
335 list_del(&firesat->list);
336 spin_unlock_irqrestore(&firesat_list_lock, flags);
337 kfree(firesat);
338 continue;
339 }
340
341// ----
342 firesat_dvbdev_init(firesat, dev, fe);
343// ----
344 firesats[subunit] = firesat;
345 } // loop for all tuners
346
347 //beta ;-) Disable remote control stuff to avoid crashing
348 //if(firesats[0])
349 // AVCRegisterRemoteControl(firesats[0]);
350
351 return 0;
352}
353
354static int firesat_remove(struct device *dev)
355{
356 struct unit_directory *ud = container_of(dev, struct unit_directory, device);
357 struct dvb_frontend* fe;
358 struct firesat **firesats = ud->device.driver_data;
359 int k;
360 unsigned long flags;
361
362 if (firesats) {
363 for (k = 0; k < 2; k++)
364 if (firesats[k]) {
365 if (firesats[k]->has_ci)
366 firesat_ca_release(firesats[k]);
367
368#if 0
369 if (!(fe = kmalloc(sizeof (struct dvb_frontend), GFP_KERNEL))) {
370 fe->ops = firesat_ops;
371 fe->dvb = firesats[k]->adapter;
372
373 dvb_unregister_frontend(fe);
374 kfree(fe);
375 }
376#endif
377 dvb_net_release(&firesats[k]->dvbnet);
378 firesats[k]->demux.dmx.close(&firesats[k]->demux.dmx);
379 firesats[k]->demux.dmx.remove_frontend(&firesats[k]->demux.dmx, &firesats[k]->frontend);
380 dvb_dmxdev_release(&firesats[k]->dmxdev);
381 dvb_dmx_release(&firesats[k]->demux);
382 dvb_unregister_adapter(firesats[k]->adapter);
383
384 spin_lock_irqsave(&firesat_list_lock, flags);
385 list_del(&firesats[k]->list);
386 spin_unlock_irqrestore(&firesat_list_lock, flags);
387
388 kfree(firesats[k]->adapter);
389 kfree(firesats[k]->respfrm);
390 kfree(firesats[k]);
391 }
392 kfree(firesats);
393 } else
394 printk("%s: can't get firesat handle\n", __func__);
395
396 printk(KERN_INFO "FireSAT: Removing device with vendor id 0x%x, model id 0x%x.\n",ud->vendor_id,ud->model_id);
397
398 return 0;
399}
400
401static int firesat_update(struct unit_directory *ud)
402{
403 struct firesat **firesats = ud->device.driver_data;
404 int k;
405 // loop over subunits
406
407 for (k = 0; k < 2; k++)
408 if (firesats[k]) {
409 firesats[k]->nodeentry = ud->ne;
410
411 if (firesats[k]->isochannel >= 0)
412 try_CMPEstablishPPconnection(firesats[k], firesats[k]->subunit, firesats[k]->isochannel);
413 }
414
415 return 0;
416}
417
418static struct hpsb_protocol_driver firesat_driver = {
419
420 .name = "FireSAT",
421 .id_table = firesat_id_table,
422 .update = firesat_update,
423
424 .driver = {
425 //.name and .bus are filled in for us in more recent linux versions
426 //.name = "FireSAT",
427 //.bus = &ieee1394_bus_type,
428 .probe = firesat_probe,
429 .remove = firesat_remove,
430 },
431};
432
433static int __init firesat_init(void)
434{
435 int ret;
436
437 printk(KERN_INFO "FireSAT loaded\n");
438 hpsb_register_highlevel(&firesat_highlevel);
439 ret = hpsb_register_protocol(&firesat_driver);
440 if (ret) {
441 printk(KERN_ERR "FireSAT: failed to register protocol\n");
442 hpsb_unregister_highlevel(&firesat_highlevel);
443 return ret;
444 }
445
446 //Crash in this function, just disable RC for the time being...
447 //Don't forget to uncomment in firesat_exit and firesat_probe when you enable this.
448 /*if((ret=firesat_register_rc()))
449 printk("%s: firesat_register_rc return error code %d (ignored)\n", __func__, ret);*/
450
451 return 0;
452}
453
454static void __exit firesat_exit(void)
455{
456 hpsb_unregister_protocol(&firesat_driver);
457 hpsb_unregister_highlevel(&firesat_highlevel);
458 printk(KERN_INFO "FireSAT quit\n");
459}
460
461module_init(firesat_init);
462module_exit(firesat_exit);
463
464MODULE_AUTHOR("Andreas Monitzer <andy@monitzer.com>");
465MODULE_AUTHOR("Ben Backx <ben@bbackx.com>");
466MODULE_DESCRIPTION("FireSAT DVB Driver");
467MODULE_LICENSE("GPL");
468MODULE_SUPPORTED_DEVICE("FireSAT DVB");
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