forked from ~ljy/RK356X_SDK_RELEASE
blame | history | patch | commit | commitdiff
hc
2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 
 kernel/drivers/media/usb/pvrusb2/pvrusb2-dvb.c
....@@ -1,17 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
12 /*
23  *  pvrusb2-dvb.c - linux-dvb api interface to the pvrusb2 driver.
34  *
45  *  Copyright (C) 2007, 2008 Michael Krufky <mkrufky@linuxtv.org>
5
- *
6
- *  This program is free software; you can redistribute it and/or modify
7
- *  it under the terms of the GNU General Public License as published by
8
- *  the Free Software Foundation; either version 2 of the License
9
- *
10
- *  This program is distributed in the hope that it will be useful,
11
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13
- *  GNU General Public License for more details.
14
- *
156  */
167 
178 #include <linux/kthread.h>
....@@ -343,26 +334,19 @@
343334 		goto done;
344335 	}
345336 
346
-	if ((dvb_props->frontend_attach(adap) == 0) && (adap->fe)) {
347
-
348
-		if (dvb_register_frontend(&adap->dvb_adap, adap->fe)) {
337
+	if (dvb_props->frontend_attach(adap) == 0 && adap->fe[0]) {
338
+		if (dvb_register_frontend(&adap->dvb_adap, adap->fe[0])) {
349339 			pvr2_trace(PVR2_TRACE_ERROR_LEGS,
350340 				   "frontend registration failed!");
351
-			dvb_frontend_detach(adap->fe);
352
-			adap->fe = NULL;
353341 			ret = -ENODEV;
354
-			goto done;
342
+			goto fail_frontend0;
355343 		}
344
+		if (adap->fe[0]->ops.analog_ops.standby)
345
+			adap->fe[0]->ops.analog_ops.standby(adap->fe[0]);
356346 
357
-		if (dvb_props->tuner_attach)
358
-			dvb_props->tuner_attach(adap);
359
-
360
-		if (adap->fe->ops.analog_ops.standby)
361
-			adap->fe->ops.analog_ops.standby(adap->fe);
362
-
363
-		/* Ensure all frontends negotiate bus access */
364
-		adap->fe->ops.ts_bus_ctrl = pvr2_dvb_bus_ctrl;
365
-
347
+		pvr2_trace(PVR2_TRACE_INFO, "transferring fe[%d] ts_bus_ctrl() to pvr2_dvb_bus_ctrl()",
348
+			   adap->fe[0]->id);
349
+		adap->fe[0]->ops.ts_bus_ctrl = pvr2_dvb_bus_ctrl;
366350 	} else {
367351 		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
368352 			   "no frontend was attached!");
....@@ -370,17 +354,74 @@
370354 		return ret;
371355 	}
372356 
373
- done:
357
+	if (dvb_props->tuner_attach && dvb_props->tuner_attach(adap)) {
358
+		pvr2_trace(PVR2_TRACE_ERROR_LEGS, "tuner attach failed");
359
+		ret = -ENODEV;
360
+		goto fail_tuner;
361
+	}
362
+
363
+	if (adap->fe[1]) {
364
+		adap->fe[1]->id = 1;
365
+		adap->fe[1]->tuner_priv = adap->fe[0]->tuner_priv;
366
+		memcpy(&adap->fe[1]->ops.tuner_ops,
367
+		       &adap->fe[0]->ops.tuner_ops,
368
+		       sizeof(struct dvb_tuner_ops));
369
+
370
+		if (dvb_register_frontend(&adap->dvb_adap, adap->fe[1])) {
371
+			pvr2_trace(PVR2_TRACE_ERROR_LEGS,
372
+				   "frontend registration failed!");
373
+			ret = -ENODEV;
374
+			goto fail_frontend1;
375
+		}
376
+		/* MFE lock */
377
+		adap->dvb_adap.mfe_shared = 1;
378
+
379
+		if (adap->fe[1]->ops.analog_ops.standby)
380
+			adap->fe[1]->ops.analog_ops.standby(adap->fe[1]);
381
+
382
+		pvr2_trace(PVR2_TRACE_INFO, "transferring fe[%d] ts_bus_ctrl() to pvr2_dvb_bus_ctrl()",
383
+			   adap->fe[1]->id);
384
+		adap->fe[1]->ops.ts_bus_ctrl = pvr2_dvb_bus_ctrl;
385
+	}
386
+done:
374387 	pvr2_channel_limit_inputs(&adap->channel, 0);
388
+	return ret;
389
+
390
+fail_frontend1:
391
+	dvb_frontend_detach(adap->fe[1]);
392
+	adap->fe[1] = NULL;
393
+fail_tuner:
394
+	dvb_unregister_frontend(adap->fe[0]);
395
+fail_frontend0:
396
+	dvb_frontend_detach(adap->fe[0]);
397
+	adap->fe[0] = NULL;
398
+	dvb_module_release(adap->i2c_client_tuner);
399
+	dvb_module_release(adap->i2c_client_demod[1]);
400
+	dvb_module_release(adap->i2c_client_demod[0]);
401
+
375402 	return ret;
376403 }
377404 
378405 static int pvr2_dvb_frontend_exit(struct pvr2_dvb_adapter *adap)
379406 {
380
-	if (adap->fe != NULL) {
381
-		dvb_unregister_frontend(adap->fe);
382
-		dvb_frontend_detach(adap->fe);
407
+	if (adap->fe[1]) {
408
+		dvb_unregister_frontend(adap->fe[1]);
409
+		dvb_frontend_detach(adap->fe[1]);
410
+		adap->fe[1] = NULL;
383411 	}
412
+	if (adap->fe[0]) {
413
+		dvb_unregister_frontend(adap->fe[0]);
414
+		dvb_frontend_detach(adap->fe[0]);
415
+		adap->fe[0] = NULL;
416
+	}
417
+
418
+	dvb_module_release(adap->i2c_client_tuner);
419
+	adap->i2c_client_tuner = NULL;
420
+	dvb_module_release(adap->i2c_client_demod[1]);
421
+	adap->i2c_client_demod[1] = NULL;
422
+	dvb_module_release(adap->i2c_client_demod[0]);
423
+	adap->i2c_client_demod[0] = NULL;
424
+
384425 	return 0;
385426 }
386427