1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * bt87x.c - Brooktree Bt878/Bt879 driver for ALSA
27 static int index[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -2}; /* Exclude the first card */
70 #define CTL_PKTP_4		(0 <<  2)	/* packet mode FIFO trigger point - 4 DWORDs */
93 #define CTL_A_PWRDN		(1 << 26)	/* analog audio power-down */
131 #define MAX_RISC_SIZE ((1 + 255 + (PAGE_ALIGN(255 * 4092) / PAGE_SIZE - 1) + 1 + 1) * 8)
203 	return readl(chip->mmio + reg);  in snd_bt87x_readl()
208 	writel(value, chip->mmio + reg);  in snd_bt87x_writel()
217 	if (chip->dma_risc.area == NULL) {  in snd_bt87x_create_risc()
218 		if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &chip->pci->dev,  in snd_bt87x_create_risc()
219 					PAGE_ALIGN(MAX_RISC_SIZE), &chip->dma_risc) < 0)  in snd_bt87x_create_risc()
220 			return -ENOMEM;  in snd_bt87x_create_risc()
222 	risc = (__le32 *)chip->dma_risc.area;  in snd_bt87x_create_risc()
234 			len = PAGE_SIZE - (offset % PAGE_SIZE);  in snd_bt87x_create_risc()
250 			rest -= len;  in snd_bt87x_create_risc()
256 	*risc++ = cpu_to_le32(chip->dma_risc.addr);  in snd_bt87x_create_risc()
257 	chip->line_bytes = period_bytes;  in snd_bt87x_create_risc()
258 	chip->lines = periods;  in snd_bt87x_create_risc()
264 	if (chip->dma_risc.area) {  in snd_bt87x_free_risc()
265 		snd_dma_free_pages(&chip->dma_risc);  in snd_bt87x_free_risc()
266 		chip->dma_risc.area = NULL;  in snd_bt87x_free_risc()
272 	int pci_status = pci_status_get_and_clear_errors(chip->pci);  in snd_bt87x_pci_error()
275 		dev_err(chip->card->dev,  in snd_bt87x_pci_error()
276 			"Aieee - PCI error! status %#08x, PCI status %#04x\n",  in snd_bt87x_pci_error()
279 		dev_err(chip->card->dev,  in snd_bt87x_pci_error()
280 			"Aieee - PCI parity error detected!\n");  in snd_bt87x_pci_error()
282 		chip->pci_parity_errors++;  in snd_bt87x_pci_error()
283 		if (chip->pci_parity_errors > 20) {  in snd_bt87x_pci_error()
284 			dev_err(chip->card->dev,  in snd_bt87x_pci_error()
286 			dev_err(chip->card->dev,  in snd_bt87x_pci_error()
288 			dev_err(chip->card->dev,  in snd_bt87x_pci_error()
290 			dev_err(chip->card->dev,  in snd_bt87x_pci_error()
292 			chip->interrupt_mask &= ~(INT_PPERR | INT_RIPERR);  in snd_bt87x_pci_error()
293 			snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);  in snd_bt87x_pci_error()
304 	irq_status = status & chip->interrupt_mask;  in snd_bt87x_interrupt()
311 			dev_warn(chip->card->dev,  in snd_bt87x_interrupt()
314 			dev_err(chip->card->dev,  in snd_bt87x_interrupt()
319 	if ((irq_status & INT_RISCI) && (chip->reg_control & CTL_ACAP_EN)) {  in snd_bt87x_interrupt()
323 		chip->current_line = (chip->current_line + 1) % chip->lines;  in snd_bt87x_interrupt()
325 		current_block = chip->current_line * 16 / chip->lines;  in snd_bt87x_interrupt()
328 			chip->current_line = DIV_ROUND_UP(irq_block * chip->lines,  in snd_bt87x_interrupt()
331 		snd_pcm_period_elapsed(chip->substream);  in snd_bt87x_interrupt()
374 	chip->reg_control |= CTL_DA_IOM_DA | CTL_A_PWRDN;  in snd_bt87x_set_digital_hw()
375 	runtime->hw = snd_bt87x_digital_hw;  in snd_bt87x_set_digital_hw()
376 	runtime->hw.rates = snd_pcm_rate_to_rate_bit(chip->board.dig_rate);  in snd_bt87x_set_digital_hw()
377 	runtime->hw.rate_min = chip->board.dig_rate;  in snd_bt87x_set_digital_hw()
378 	runtime->hw.rate_max = chip->board.dig_rate;  in snd_bt87x_set_digital_hw()
395 	chip->reg_control &= ~(CTL_DA_IOM_DA | CTL_A_PWRDN);  in snd_bt87x_set_analog_hw()
396 	runtime->hw = snd_bt87x_analog_hw;  in snd_bt87x_set_analog_hw()
404 	struct snd_pcm_runtime *runtime = substream->runtime;  in snd_bt87x_pcm_open()
407 	if (test_and_set_bit(0, &chip->opened))  in snd_bt87x_pcm_open()
408 		return -EBUSY;  in snd_bt87x_pcm_open()
410 	if (substream->pcm->device == DEVICE_DIGITAL)  in snd_bt87x_pcm_open()
421 	chip->substream = substream;  in snd_bt87x_pcm_open()
425 	clear_bit(0, &chip->opened);  in snd_bt87x_pcm_open()
434 	spin_lock_irq(&chip->reg_lock);  in snd_bt87x_close()
435 	chip->reg_control |= CTL_A_PWRDN;  in snd_bt87x_close()
436 	snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);  in snd_bt87x_close()
437 	spin_unlock_irq(&chip->reg_lock);  in snd_bt87x_close()
439 	chip->substream = NULL;  in snd_bt87x_close()
440 	clear_bit(0, &chip->opened);  in snd_bt87x_close()
466 	struct snd_pcm_runtime *runtime = substream->runtime;  in snd_bt87x_prepare()
469 	spin_lock_irq(&chip->reg_lock);  in snd_bt87x_prepare()
470 	chip->reg_control &= ~(CTL_DA_SDR_MASK | CTL_DA_SBR);  in snd_bt87x_prepare()
471 	decimation = (ANALOG_CLOCK + runtime->rate / 4) / runtime->rate;  in snd_bt87x_prepare()
472 	chip->reg_control |= decimation << CTL_DA_SDR_SHIFT;  in snd_bt87x_prepare()
473 	if (runtime->format == SNDRV_PCM_FORMAT_S8)  in snd_bt87x_prepare()
474 		chip->reg_control |= CTL_DA_SBR;  in snd_bt87x_prepare()
475 	snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);  in snd_bt87x_prepare()
476 	spin_unlock_irq(&chip->reg_lock);  in snd_bt87x_prepare()
482 	spin_lock(&chip->reg_lock);  in snd_bt87x_start()
483 	chip->current_line = 0;  in snd_bt87x_start()
484 	chip->reg_control |= CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN;  in snd_bt87x_start()
485 	snd_bt87x_writel(chip, REG_RISC_STRT_ADD, chip->dma_risc.addr);  in snd_bt87x_start()
487 			 chip->line_bytes | (chip->lines << 16));  in snd_bt87x_start()
488 	snd_bt87x_writel(chip, REG_INT_MASK, chip->interrupt_mask);  in snd_bt87x_start()
489 	snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);  in snd_bt87x_start()
490 	spin_unlock(&chip->reg_lock);  in snd_bt87x_start()
496 	spin_lock(&chip->reg_lock);  in snd_bt87x_stop()
497 	chip->reg_control &= ~(CTL_FIFO_ENABLE | CTL_RISC_ENABLE | CTL_ACAP_EN);  in snd_bt87x_stop()
498 	snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);  in snd_bt87x_stop()
501 	spin_unlock(&chip->reg_lock);  in snd_bt87x_stop()
515 		return -EINVAL;  in snd_bt87x_trigger()
522 	struct snd_pcm_runtime *runtime = substream->runtime;  in snd_bt87x_pointer()
524 	return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes);  in snd_bt87x_pointer()
540 	info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;  in snd_bt87x_capture_volume_info()
541 	info->count = 1;  in snd_bt87x_capture_volume_info()
542 	info->value.integer.min = 0;  in snd_bt87x_capture_volume_info()
543 	info->value.integer.max = 15;  in snd_bt87x_capture_volume_info()
552 	value->value.integer.value[0] = (chip->reg_control & CTL_A_GAIN_MASK) >> CTL_A_GAIN_SHIFT;  in snd_bt87x_capture_volume_get()
563 	spin_lock_irq(&chip->reg_lock);  in snd_bt87x_capture_volume_put()
564 	old_control = chip->reg_control;  in snd_bt87x_capture_volume_put()
565 	chip->reg_control = (chip->reg_control & ~CTL_A_GAIN_MASK)  in snd_bt87x_capture_volume_put()
566 		| (value->value.integer.value[0] << CTL_A_GAIN_SHIFT);  in snd_bt87x_capture_volume_put()
567 	snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);  in snd_bt87x_capture_volume_put()
568 	changed = old_control != chip->reg_control;  in snd_bt87x_capture_volume_put()
569 	spin_unlock_irq(&chip->reg_lock);  in snd_bt87x_capture_volume_put()
588 	value->value.integer.value[0] = !! (chip->reg_control & CTL_A_G2X);  in snd_bt87x_capture_boost_get()
599 	spin_lock_irq(&chip->reg_lock);  in snd_bt87x_capture_boost_put()
600 	old_control = chip->reg_control;  in snd_bt87x_capture_boost_put()
601 	chip->reg_control = (chip->reg_control & ~CTL_A_G2X)  in snd_bt87x_capture_boost_put()
602 		| (value->value.integer.value[0] ? CTL_A_G2X : 0);  in snd_bt87x_capture_boost_put()
603 	snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);  in snd_bt87x_capture_boost_put()
604 	changed = chip->reg_control != old_control;  in snd_bt87x_capture_boost_put()
605 	spin_unlock_irq(&chip->reg_lock);  in snd_bt87x_capture_boost_put()
630 	value->value.enumerated.item[0] = (chip->reg_control & CTL_A_SEL_MASK) >> CTL_A_SEL_SHIFT;  in snd_bt87x_capture_source_get()
641 	spin_lock_irq(&chip->reg_lock);  in snd_bt87x_capture_source_put()
642 	old_control = chip->reg_control;  in snd_bt87x_capture_source_put()
643 	chip->reg_control = (chip->reg_control & ~CTL_A_SEL_MASK)  in snd_bt87x_capture_source_put()
644 		| (value->value.enumerated.item[0] << CTL_A_SEL_SHIFT);  in snd_bt87x_capture_source_put()
645 	snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);  in snd_bt87x_capture_source_put()
646 	changed = chip->reg_control != old_control;  in snd_bt87x_capture_source_put()
647 	spin_unlock_irq(&chip->reg_lock);  in snd_bt87x_capture_source_put()
661 	struct snd_bt87x *chip = card->private_data;  in snd_bt87x_free()
671 	err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);  in snd_bt87x_pcm()
674 	pcm->private_data = chip;  in snd_bt87x_pcm()
675 	strcpy(pcm->name, name);  in snd_bt87x_pcm()
678 				       &chip->pci->dev,  in snd_bt87x_pcm()
687 	struct snd_bt87x *chip = card->private_data;  in snd_bt87x_create()
694 	chip->card = card;  in snd_bt87x_create()
695 	chip->pci = pci;  in snd_bt87x_create()
696 	chip->irq = -1;  in snd_bt87x_create()
697 	spin_lock_init(&chip->reg_lock);  in snd_bt87x_create()
702 	chip->mmio = pcim_iomap_table(pci)[0];  in snd_bt87x_create()
704 	chip->reg_control = CTL_A_PWRDN | CTL_DA_ES2 |  in snd_bt87x_create()
706 	chip->interrupt_mask = MY_INTERRUPTS;  in snd_bt87x_create()
707 	snd_bt87x_writel(chip, REG_GPIO_DMA_CTL, chip->reg_control);  in snd_bt87x_create()
711 	err = devm_request_irq(&pci->dev, pci->irq, snd_bt87x_interrupt,  in snd_bt87x_create()
714 		dev_err(card->dev, "cannot grab irq %d\n", pci->irq);  in snd_bt87x_create()
717 	chip->irq = pci->irq;  in snd_bt87x_create()
718 	card->sync_irq = chip->irq;  in snd_bt87x_create()
719 	card->private_free = snd_bt87x_free;  in snd_bt87x_create()
741 	/* ATI TV-Wonder */
753 	/* Prolink PixelView PV-M4900 */
769 	{0x1461, 0x0761}, /* AVermedia AverTV DVB-T */
770 	{0x1461, 0x0771}, /* AVermedia DVB-T 771 */
771 	{0x1822, 0x0001}, /* Twinhan VisionPlus DVB-T */
773 	{0x18ac, 0xdb10}, /* DVICO FusionHDTV DVB-T Lite */
774 	{0x18ac, 0xdb11}, /* Ultraview DVB-T Lite */
775 	{0x270f, 0xfc00}, /* Chaintech Digitop DST-1000 DVB-S */
776 	{0x7063, 0x2000}, /* pcHDTV HD-2000 TV */
788 	if (supported && supported->driver_data > 0)  in snd_bt87x_detect_card()
789 		return supported->driver_data;  in snd_bt87x_detect_card()
792 		if (denylist[i].subvendor == pci->subsystem_vendor &&  in snd_bt87x_detect_card()
793 		    denylist[i].subdevice == pci->subsystem_device) {  in snd_bt87x_detect_card()
794 			dev_dbg(&pci->dev,  in snd_bt87x_detect_card()
795 				"card %#04x-%#04x:%#04x has no audio\n",  in snd_bt87x_detect_card()
796 				    pci->device, pci->subsystem_vendor, pci->subsystem_device);  in snd_bt87x_detect_card()
797 			return -EBUSY;  in snd_bt87x_detect_card()
800 	dev_info(&pci->dev, "unknown card %#04x-%#04x:%#04x\n",  in snd_bt87x_detect_card()
801 		   pci->device, pci->subsystem_vendor, pci->subsystem_device);  in snd_bt87x_detect_card()
802 	dev_info(&pci->dev, "please mail id, board name, and, "  in snd_bt87x_detect_card()
804 		   "<alsa-devel@alsa-project.org>\n");  in snd_bt87x_detect_card()
817 	if (!pci_id->driver_data) {  in __snd_bt87x_probe()
820 			return -ENODEV;  in __snd_bt87x_probe()
823 		boardid = pci_id->driver_data;  in __snd_bt87x_probe()
826 		return -ENODEV;  in __snd_bt87x_probe()
829 		return -ENOENT;  in __snd_bt87x_probe()
832 	err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,  in __snd_bt87x_probe()
836 	chip = card->private_data;  in __snd_bt87x_probe()
842 	memcpy(&chip->board, &snd_bt87x_boards[boardid], sizeof(chip->board));  in __snd_bt87x_probe()
844 	if (!chip->board.no_digital) {  in __snd_bt87x_probe()
846 			chip->board.dig_rate = digital_rate[dev];  in __snd_bt87x_probe()
848 		chip->reg_control |= chip->board.digital_fmt;  in __snd_bt87x_probe()
854 	if (!chip->board.no_analog) {  in __snd_bt87x_probe()
871 	dev_info(card->dev, "bt87x%d: Using board %d, %sanalog, %sdigital "  in __snd_bt87x_probe()
873 		   chip->board.no_analog ? "no " : "",  in __snd_bt87x_probe()
874 		   chip->board.no_digital ? "no " : "", chip->board.dig_rate);  in __snd_bt87x_probe()
876 	strcpy(card->driver, "Bt87x");  in __snd_bt87x_probe()
877 	sprintf(card->shortname, "Brooktree Bt%x", pci->device);  in __snd_bt87x_probe()
878 	sprintf(card->longname, "%s at %#llx, irq %i",  in __snd_bt87x_probe()
879 		card->shortname, (unsigned long long)pci_resource_start(pci, 0),  in __snd_bt87x_probe()
880 		chip->irq);  in __snd_bt87x_probe()
881 	strcpy(card->mixername, "Bt87x");  in __snd_bt87x_probe()
895 	return snd_card_free_on_error(&pci->dev, __snd_bt87x_probe(pci, pci_id));  in snd_bt87x_probe()
898 /* default entries for all Bt87x cards - it's not exported */