1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2014 Akihiro Tsukada <tskd08@gmail.com>
8 #include <linux/freezer.h>
9 #include <linux/kernel.h>
10 #include <linux/kthread.h>
11 #include <linux/mutex.h>
12 #include <linux/module.h>
13 #include <linux/pci.h>
14 #include <linux/string.h>
15 #include <linux/sched/signal.h>
17 #include <media/dmxdev.h>
18 #include <media/dvbdev.h>
19 #include <media/dvb_demux.h>
20 #include <media/dvb_frontend.h>
24 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
26 static bool one_adapter;
27 module_param(one_adapter, bool, 0444);
28 MODULE_PARM_DESC(one_adapter, "Place FE's together under one adapter.");
30 static int num_bufs = 4;
31 module_param(num_bufs, int, 0444);
32 MODULE_PARM_DESC(num_bufs, "Number of DMA buffer (188KiB) per FE.");
35 static const struct i2c_algorithm pt3_i2c_algo = {
36 .master_xfer = &pt3_i2c_master_xfer,
37 .functionality = &pt3_i2c_functionality,
40 static const struct pt3_adap_config adap_conf[PT3_NUM_FE] = {
43 I2C_BOARD_INFO(TC90522_I2C_DEV_SAT, 0x11),
46 I2C_BOARD_INFO("qm1d1c0042", 0x63),
48 .tuner_cfg.qm1d1c0042 = {
51 .init_freq = 1049480 - 300,
55 I2C_BOARD_INFO(TC90522_I2C_DEV_TER, 0x10),
58 I2C_BOARD_INFO("mxl301rf", 0x62),
60 .init_freq = 515142857,
64 I2C_BOARD_INFO(TC90522_I2C_DEV_SAT, 0x13),
67 I2C_BOARD_INFO("qm1d1c0042", 0x60),
69 .tuner_cfg.qm1d1c0042 = {
72 .init_freq = 1049480 + 300,
76 I2C_BOARD_INFO(TC90522_I2C_DEV_TER, 0x12),
79 I2C_BOARD_INFO("mxl301rf", 0x61),
81 .init_freq = 521142857,
92 pt3_demod_write(struct pt3_adapter *adap, const struct reg_val *data, int num)
98 msg.addr = adap->i2c_demod->addr;
101 for (i = 0; i < num; i++) {
102 msg.buf = (u8 *)&data[i];
103 ret = i2c_transfer(adap->i2c_demod->adapter, &msg, 1);
112 static inline void pt3_lnb_ctrl(struct pt3_board *pt3, bool on)
114 iowrite32((on ? 0x0f : 0x0c), pt3->regs[0] + REG_SYSTEM_W);
117 static inline struct pt3_adapter *pt3_find_adapter(struct dvb_frontend *fe)
119 struct pt3_board *pt3;
124 for (i = 0; i < PT3_NUM_FE; i++)
125 if (pt3->adaps[i]->fe == fe)
126 return pt3->adaps[i];
128 return container_of(fe->dvb, struct pt3_adapter, dvb_adap);
132 * all 4 tuners in PT3 are packaged in a can module (Sharp VA4M6JC2103).
133 * it seems that they share the power lines and Amp power line and
134 * adaps[3] controls those powers.
137 pt3_set_tuner_power(struct pt3_board *pt3, bool tuner_on, bool amp_on)
139 struct reg_val rv = { 0x1e, 0x99 };
145 return pt3_demod_write(pt3->adaps[PT3_NUM_FE - 1], &rv, 1);
148 static int pt3_set_lna(struct dvb_frontend *fe)
150 struct pt3_adapter *adap;
151 struct pt3_board *pt3;
155 /* LNA is shared btw. 2 TERR-tuners */
157 adap = pt3_find_adapter(fe);
158 val = fe->dtv_property_cache.lna;
159 if (val == LNA_AUTO || val == adap->cur_lna)
162 pt3 = adap->dvb_adap.priv;
163 if (mutex_lock_interruptible(&pt3->lock))
170 if (val && pt3->lna_on_cnt <= 1) {
172 ret = pt3_set_tuner_power(pt3, true, true);
173 } else if (!val && pt3->lna_on_cnt <= 0) {
175 ret = pt3_set_tuner_power(pt3, true, false);
178 mutex_unlock(&pt3->lock);
179 adap->cur_lna = (val != 0);
183 static int pt3_set_voltage(struct dvb_frontend *fe, enum fe_sec_voltage volt)
185 struct pt3_adapter *adap;
186 struct pt3_board *pt3;
189 /* LNB power is shared btw. 2 SAT-tuners */
191 adap = pt3_find_adapter(fe);
192 on = (volt != SEC_VOLTAGE_OFF);
193 if (on == adap->cur_lnb)
196 pt3 = adap->dvb_adap.priv;
197 if (mutex_lock_interruptible(&pt3->lock))
204 if (on && pt3->lnb_on_cnt <= 1) {
206 pt3_lnb_ctrl(pt3, true);
207 } else if (!on && pt3->lnb_on_cnt <= 0) {
209 pt3_lnb_ctrl(pt3, false);
211 mutex_unlock(&pt3->lock);
215 /* register values used in pt3_fe_init() */
217 static const struct reg_val init0_sat[] = {
221 static const struct reg_val init0_ter[] = {
225 static const struct reg_val cfg_sat[] = {
229 static const struct reg_val cfg_ter[] = {
234 * pt3_fe_init: initialize demod sub modules and ISDB-T tuners all at once.
236 * As for demod IC (TC90522) and ISDB-T tuners (MxL301RF),
237 * the i2c sequences for init'ing them are not public and hidden in a ROM,
238 * and include the board specific configurations as well.
239 * They are stored in a lump and cannot be taken out / accessed separately,
240 * thus cannot be moved to the FE/tuner driver.
242 static int pt3_fe_init(struct pt3_board *pt3)
245 struct dvb_frontend *fe;
248 ret = pt3_init_all_demods(pt3);
250 dev_warn(&pt3->pdev->dev, "Failed to init demod chips\n");
254 /* additional config? */
255 for (i = 0; i < PT3_NUM_FE; i++) {
256 fe = pt3->adaps[i]->fe;
258 if (fe->ops.delsys[0] == SYS_ISDBS)
259 ret = pt3_demod_write(pt3->adaps[i],
260 init0_sat, ARRAY_SIZE(init0_sat));
262 ret = pt3_demod_write(pt3->adaps[i],
263 init0_ter, ARRAY_SIZE(init0_ter));
265 dev_warn(&pt3->pdev->dev,
266 "demod[%d] failed in init sequence0\n", i);
269 ret = fe->ops.init(fe);
274 usleep_range(2000, 4000);
275 ret = pt3_set_tuner_power(pt3, true, false);
277 dev_warn(&pt3->pdev->dev, "Failed to control tuner module\n");
281 /* output pin configuration */
282 for (i = 0; i < PT3_NUM_FE; i++) {
283 fe = pt3->adaps[i]->fe;
284 if (fe->ops.delsys[0] == SYS_ISDBS)
285 ret = pt3_demod_write(pt3->adaps[i],
286 cfg_sat, ARRAY_SIZE(cfg_sat));
288 ret = pt3_demod_write(pt3->adaps[i],
289 cfg_ter, ARRAY_SIZE(cfg_ter));
291 dev_warn(&pt3->pdev->dev,
292 "demod[%d] failed in init sequence1\n", i);
296 usleep_range(4000, 6000);
298 for (i = 0; i < PT3_NUM_FE; i++) {
299 fe = pt3->adaps[i]->fe;
300 if (fe->ops.delsys[0] != SYS_ISDBS)
302 /* init and wake-up ISDB-S tuners */
303 ret = fe->ops.tuner_ops.init(fe);
305 dev_warn(&pt3->pdev->dev,
306 "Failed to init SAT-tuner[%d]\n", i);
310 ret = pt3_init_all_mxl301rf(pt3);
312 dev_warn(&pt3->pdev->dev, "Failed to init TERR-tuners\n");
316 ret = pt3_set_tuner_power(pt3, true, true);
318 dev_warn(&pt3->pdev->dev, "Failed to control tuner module\n");
322 /* Wake up all tuners and make an initial tuning,
323 * in order to avoid interference among the tuners in the module,
324 * according to the doc from the manufacturer.
326 for (i = 0; i < PT3_NUM_FE; i++) {
327 fe = pt3->adaps[i]->fe;
329 if (fe->ops.delsys[0] == SYS_ISDBT)
330 ret = fe->ops.tuner_ops.init(fe);
331 /* set only when called from pt3_probe(), not resume() */
332 if (ret == 0 && fe->dtv_property_cache.frequency == 0) {
333 fe->dtv_property_cache.frequency =
334 adap_conf[i].init_freq;
335 ret = fe->ops.tuner_ops.set_params(fe);
338 dev_warn(&pt3->pdev->dev,
339 "Failed in initial tuning of tuner[%d]\n", i);
344 /* and sleep again, waiting to be opened by users. */
345 for (i = 0; i < PT3_NUM_FE; i++) {
346 fe = pt3->adaps[i]->fe;
347 if (fe->ops.tuner_ops.sleep)
348 ret = fe->ops.tuner_ops.sleep(fe);
352 ret = fe->ops.sleep(fe);
355 if (fe->ops.delsys[0] == SYS_ISDBS)
356 fe->ops.set_voltage = &pt3_set_voltage;
358 fe->ops.set_lna = &pt3_set_lna;
360 if (i < PT3_NUM_FE) {
361 dev_warn(&pt3->pdev->dev, "FE[%d] failed to standby\n", i);
368 static int pt3_attach_fe(struct pt3_board *pt3, int i)
370 const struct i2c_board_info *info;
371 struct tc90522_config cfg;
372 struct i2c_client *cl;
373 struct dvb_adapter *dvb_adap;
376 info = &adap_conf[i].demod_info;
377 cfg = adap_conf[i].demod_cfg;
378 cfg.tuner_i2c = NULL;
381 cl = dvb_module_probe("tc90522", info->type, &pt3->i2c_adap,
385 pt3->adaps[i]->i2c_demod = cl;
387 if (!strncmp(cl->name, TC90522_I2C_DEV_SAT,
388 strlen(TC90522_I2C_DEV_SAT))) {
389 struct qm1d1c0042_config tcfg;
391 tcfg = adap_conf[i].tuner_cfg.qm1d1c0042;
393 info = &adap_conf[i].tuner_info;
394 cl = dvb_module_probe("qm1d1c0042", info->type, cfg.tuner_i2c,
397 struct mxl301rf_config tcfg;
399 tcfg = adap_conf[i].tuner_cfg.mxl301rf;
401 info = &adap_conf[i].tuner_info;
402 cl = dvb_module_probe("mxl301rf", info->type, cfg.tuner_i2c,
406 goto err_demod_module_release;
407 pt3->adaps[i]->i2c_tuner = cl;
409 dvb_adap = &pt3->adaps[one_adapter ? 0 : i]->dvb_adap;
410 ret = dvb_register_frontend(dvb_adap, cfg.fe);
412 goto err_tuner_module_release;
413 pt3->adaps[i]->fe = cfg.fe;
416 err_tuner_module_release:
417 dvb_module_release(pt3->adaps[i]->i2c_tuner);
418 err_demod_module_release:
419 dvb_module_release(pt3->adaps[i]->i2c_demod);
425 static int pt3_fetch_thread(void *data)
427 struct pt3_adapter *adap = data;
431 #define PT3_INITIAL_BUF_DROPS 4
432 #define PT3_FETCH_DELAY 10
433 #define PT3_FETCH_DELAY_DELTA 2
435 pt3_init_dmabuf(adap);
436 adap->num_discard = PT3_INITIAL_BUF_DROPS;
438 dev_dbg(adap->dvb_adap.device, "PT3: [%s] started\n",
441 while (!kthread_freezable_should_stop(&was_frozen)) {
443 adap->num_discard = PT3_INITIAL_BUF_DROPS;
447 delay = ktime_set(0, PT3_FETCH_DELAY * NSEC_PER_MSEC);
448 set_current_state(TASK_UNINTERRUPTIBLE|TASK_FREEZABLE);
449 schedule_hrtimeout_range(&delay,
450 PT3_FETCH_DELAY_DELTA * NSEC_PER_MSEC,
453 dev_dbg(adap->dvb_adap.device, "PT3: [%s] exited\n",
458 static int pt3_start_streaming(struct pt3_adapter *adap)
460 struct task_struct *thread;
462 /* start fetching thread */
463 thread = kthread_run(pt3_fetch_thread, adap, "pt3-ad%i-dmx%i",
464 adap->dvb_adap.num, adap->dmxdev.dvbdev->id);
465 if (IS_ERR(thread)) {
466 int ret = PTR_ERR(thread);
469 dev_warn(adap->dvb_adap.device,
470 "PT3 (adap:%d, dmx:%d): failed to start kthread\n",
471 adap->dvb_adap.num, adap->dmxdev.dvbdev->id);
474 adap->thread = thread;
476 return pt3_start_dma(adap);
479 static int pt3_stop_streaming(struct pt3_adapter *adap)
483 ret = pt3_stop_dma(adap);
485 dev_warn(adap->dvb_adap.device,
486 "PT3: failed to stop streaming of adap:%d/FE:%d\n",
487 adap->dvb_adap.num, adap->fe->id);
489 /* kill the fetching thread */
490 ret = kthread_stop(adap->thread);
495 static int pt3_start_feed(struct dvb_demux_feed *feed)
497 struct pt3_adapter *adap;
499 if (signal_pending(current))
502 adap = container_of(feed->demux, struct pt3_adapter, demux);
504 if (adap->num_feeds > 1)
507 return pt3_start_streaming(adap);
511 static int pt3_stop_feed(struct dvb_demux_feed *feed)
513 struct pt3_adapter *adap;
515 adap = container_of(feed->demux, struct pt3_adapter, demux);
518 if (adap->num_feeds > 0 || !adap->thread)
522 return pt3_stop_streaming(adap);
526 static int pt3_alloc_adapter(struct pt3_board *pt3, int index)
529 struct pt3_adapter *adap;
530 struct dvb_adapter *da;
532 adap = kzalloc(sizeof(*adap), GFP_KERNEL);
536 pt3->adaps[index] = adap;
537 adap->adap_idx = index;
539 if (index == 0 || !one_adapter) {
540 ret = dvb_register_adapter(&adap->dvb_adap, "PT3 DVB",
541 THIS_MODULE, &pt3->pdev->dev, adapter_nr);
543 dev_err(&pt3->pdev->dev,
544 "failed to register adapter dev\n");
547 da = &adap->dvb_adap;
549 da = &pt3->adaps[0]->dvb_adap;
551 adap->dvb_adap.priv = pt3;
552 adap->demux.dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING;
553 adap->demux.priv = adap;
554 adap->demux.feednum = 256;
555 adap->demux.filternum = 256;
556 adap->demux.start_feed = pt3_start_feed;
557 adap->demux.stop_feed = pt3_stop_feed;
558 ret = dvb_dmx_init(&adap->demux);
560 dev_err(&pt3->pdev->dev, "failed to init dmx dev\n");
564 adap->dmxdev.filternum = 256;
565 adap->dmxdev.demux = &adap->demux.dmx;
566 ret = dvb_dmxdev_init(&adap->dmxdev, da);
568 dev_err(&pt3->pdev->dev, "failed to init dmxdev\n");
572 ret = pt3_alloc_dmabuf(adap);
574 dev_err(&pt3->pdev->dev, "failed to alloc DMA buffers\n");
581 pt3_free_dmabuf(adap);
582 dvb_dmxdev_release(&adap->dmxdev);
584 dvb_dmx_release(&adap->demux);
586 if (index == 0 || !one_adapter)
587 dvb_unregister_adapter(da);
590 pt3->adaps[index] = NULL;
594 static void pt3_cleanup_adapter(struct pt3_board *pt3, int index)
596 struct pt3_adapter *adap;
597 struct dmx_demux *dmx;
599 adap = pt3->adaps[index];
603 /* stop demux kthread */
605 pt3_stop_streaming(adap);
607 dmx = &adap->demux.dmx;
610 adap->fe->callback = NULL;
611 if (adap->fe->frontend_priv)
612 dvb_unregister_frontend(adap->fe);
613 dvb_module_release(adap->i2c_tuner);
614 dvb_module_release(adap->i2c_demod);
616 pt3_free_dmabuf(adap);
617 dvb_dmxdev_release(&adap->dmxdev);
618 dvb_dmx_release(&adap->demux);
619 if (index == 0 || !one_adapter)
620 dvb_unregister_adapter(&adap->dvb_adap);
622 pt3->adaps[index] = NULL;
625 #ifdef CONFIG_PM_SLEEP
627 static int pt3_suspend(struct device *dev)
629 struct pt3_board *pt3 = dev_get_drvdata(dev);
631 struct pt3_adapter *adap;
633 for (i = 0; i < PT3_NUM_FE; i++) {
634 adap = pt3->adaps[i];
635 if (adap->num_feeds > 0)
637 dvb_frontend_suspend(adap->fe);
638 pt3_free_dmabuf(adap);
641 pt3_lnb_ctrl(pt3, false);
642 pt3_set_tuner_power(pt3, false, false);
646 static int pt3_resume(struct device *dev)
648 struct pt3_board *pt3 = dev_get_drvdata(dev);
650 struct pt3_adapter *adap;
652 ret = pt3_fe_init(pt3);
656 if (pt3->lna_on_cnt > 0)
657 pt3_set_tuner_power(pt3, true, true);
658 if (pt3->lnb_on_cnt > 0)
659 pt3_lnb_ctrl(pt3, true);
661 for (i = 0; i < PT3_NUM_FE; i++) {
662 adap = pt3->adaps[i];
663 dvb_frontend_resume(adap->fe);
664 ret = pt3_alloc_dmabuf(adap);
666 dev_err(&pt3->pdev->dev, "failed to alloc DMA bufs\n");
669 if (adap->num_feeds > 0)
676 #endif /* CONFIG_PM_SLEEP */
679 static void pt3_remove(struct pci_dev *pdev)
681 struct pt3_board *pt3;
684 pt3 = pci_get_drvdata(pdev);
685 for (i = PT3_NUM_FE - 1; i >= 0; i--)
686 pt3_cleanup_adapter(pt3, i);
687 i2c_del_adapter(&pt3->i2c_adap);
690 static int pt3_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
695 struct pt3_board *pt3;
696 struct i2c_adapter *i2c;
698 if (pci_read_config_byte(pdev, PCI_REVISION_ID, &rev) || rev != 1)
701 ret = pcim_enable_device(pdev);
704 pci_set_master(pdev);
706 ret = pcim_iomap_regions(pdev, BIT(0) | BIT(2), DRV_NAME);
710 ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
712 dev_err(&pdev->dev, "Failed to set DMA mask\n");
716 pt3 = devm_kzalloc(&pdev->dev, sizeof(*pt3), GFP_KERNEL);
719 pci_set_drvdata(pdev, pt3);
721 mutex_init(&pt3->lock);
722 pt3->regs[0] = pcim_iomap_table(pdev)[0];
723 pt3->regs[1] = pcim_iomap_table(pdev)[2];
725 ver = ioread32(pt3->regs[0] + REG_VERSION);
726 if ((ver >> 16) != 0x0301) {
727 dev_warn(&pdev->dev, "PT%d, I/F-ver.:%d not supported\n",
728 ver >> 24, (ver & 0x00ff0000) >> 16);
732 pt3->num_bufs = clamp_val(num_bufs, MIN_DATA_BUFS, MAX_DATA_BUFS);
734 pt3->i2c_buf = devm_kmalloc(&pdev->dev, sizeof(*pt3->i2c_buf), GFP_KERNEL);
737 i2c = &pt3->i2c_adap;
738 i2c->owner = THIS_MODULE;
739 i2c->algo = &pt3_i2c_algo;
740 i2c->algo_data = NULL;
741 i2c->dev.parent = &pdev->dev;
742 strscpy(i2c->name, DRV_NAME, sizeof(i2c->name));
743 i2c_set_adapdata(i2c, pt3);
744 ret = i2c_add_adapter(i2c);
748 for (i = 0; i < PT3_NUM_FE; i++) {
749 ret = pt3_alloc_adapter(pt3, i);
753 ret = pt3_attach_fe(pt3, i);
757 if (i < PT3_NUM_FE) {
758 dev_err(&pdev->dev, "Failed to create FE%d\n", i);
759 goto err_cleanup_adapters;
762 ret = pt3_fe_init(pt3);
764 dev_err(&pdev->dev, "Failed to init frontends\n");
766 goto err_cleanup_adapters;
770 "successfully init'ed PT%d (fw:0x%02x, I/F:0x%02x)\n",
771 ver >> 24, (ver >> 8) & 0xff, (ver >> 16) & 0xff);
774 err_cleanup_adapters:
776 pt3_cleanup_adapter(pt3, i--);
777 i2c_del_adapter(i2c);
781 static const struct pci_device_id pt3_id_table[] = {
782 { PCI_DEVICE_SUB(0x1172, 0x4c15, 0xee8d, 0x0368) },
785 MODULE_DEVICE_TABLE(pci, pt3_id_table);
787 static SIMPLE_DEV_PM_OPS(pt3_pm_ops, pt3_suspend, pt3_resume);
789 static struct pci_driver pt3_driver = {
792 .remove = pt3_remove,
793 .id_table = pt3_id_table,
795 .driver.pm = &pt3_pm_ops,
798 module_pci_driver(pt3_driver);
800 MODULE_DESCRIPTION("Earthsoft PT3 Driver");
801 MODULE_AUTHOR("Akihiro TSUKADA");
802 MODULE_LICENSE("GPL");