1 // SPDX-License-Identifier: GPL-2.0-only
3  *  hdac-ext-stream.c - HD-audio extended stream operations.
22  * snd_hdac_ext_host_stream_setup - Setup a HOST stream.
24  * @code_loading: Whether the stream is for PCM or code-loading.
30 	return hext_stream->host_setup(hdac_stream(hext_stream), code_loading);  in snd_hdac_ext_host_stream_setup()
35  * snd_hdac_apl_host_stream_setup - Setup a HOST stream following procedure
38  * @code_loading: Whether the stream is for PCM or code-loading.
47 	snd_hdac_ext_stream_decouple(hstream->bus, hext_stream, false);  in snd_hdac_apl_host_stream_setup()
49 	snd_hdac_ext_stream_decouple(hstream->bus, hext_stream, true);  in snd_hdac_apl_host_stream_setup()
55  * snd_hdac_ext_stream_init - initialize each stream (aka device)
56  * @bus: HD-audio core bus
57  * @hext_stream: HD-audio ext core stream object to initialize
69 	if (bus->ppcap) {  in snd_hdac_ext_stream_init()
70 		hext_stream->pphc_addr = bus->ppcap + AZX_PPHC_BASE +  in snd_hdac_ext_stream_init()
73 		hext_stream->pplc_addr = bus->ppcap + AZX_PPLC_BASE +  in snd_hdac_ext_stream_init()
74 				AZX_PPLC_MULTI * bus->num_streams +  in snd_hdac_ext_stream_init()
78 	hext_stream->decoupled = false;  in snd_hdac_ext_stream_init()
79 	snd_hdac_stream_init(bus, &hext_stream->hstream, idx, direction, tag);  in snd_hdac_ext_stream_init()
83  * snd_hdac_ext_stream_init_all - create and initialize the stream objects
85  * @bus: HD-audio core bus
93 	struct pci_dev *pci = to_pci_dev(bus->dev);  in snd_hdac_ext_stream_init_all()
98 	if (pci->device == PCI_DEVICE_ID_INTEL_HDA_APL)  in snd_hdac_ext_stream_init_all()
107 			return -ENOMEM;  in snd_hdac_ext_stream_init_all()
111 		hext_stream->host_setup = setup_op;  in snd_hdac_ext_stream_init_all()
120  * snd_hdac_ext_stream_free_all - free hdac extended stream objects
122  * @bus: HD-audio core bus
129 	list_for_each_entry_safe(s, _s, &bus->stream_list, list) {  in snd_hdac_ext_stream_free_all()
132 		list_del(&s->list);  in snd_hdac_ext_stream_free_all()
142 	struct hdac_stream *hstream = &hext_stream->hstream;  in snd_hdac_ext_stream_decouple_locked()
144 	int mask = AZX_PPCTL_PROCEN(hstream->index);  in snd_hdac_ext_stream_decouple_locked()
146 	val = readw(bus->ppcap + AZX_REG_PP_PPCTL) & mask;  in snd_hdac_ext_stream_decouple_locked()
149 		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, mask, mask);  in snd_hdac_ext_stream_decouple_locked()
151 		snd_hdac_updatel(bus->ppcap, AZX_REG_PP_PPCTL, mask, 0);  in snd_hdac_ext_stream_decouple_locked()
153 	hext_stream->decoupled = decouple;  in snd_hdac_ext_stream_decouple_locked()
158  * snd_hdac_ext_stream_decouple - decouple the hdac stream
159  * @bus: HD-audio core bus
160  * @hext_stream: HD-audio ext core stream object to initialize
166 	spin_lock_irq(&bus->reg_lock);  in snd_hdac_ext_stream_decouple()
168 	spin_unlock_irq(&bus->reg_lock);  in snd_hdac_ext_stream_decouple()
173  * snd_hdac_ext_stream_start - start a stream
174  * @hext_stream: HD-audio ext core stream to start
178 	snd_hdac_updatel(hext_stream->pplc_addr, AZX_REG_PPLCCTL,  in snd_hdac_ext_stream_start()
184  * snd_hdac_ext_stream_clear - stop a stream DMA
185  * @hext_stream: HD-audio ext core stream to stop
189 	snd_hdac_updatel(hext_stream->pplc_addr, AZX_REG_PPLCCTL, AZX_PPLCCTL_RUN, 0);  in snd_hdac_ext_stream_clear()
194  * snd_hdac_ext_stream_reset - reset a stream
195  * @hext_stream: HD-audio ext core stream to reset
204 	snd_hdac_updatel(hext_stream->pplc_addr, AZX_REG_PPLCCTL,  in snd_hdac_ext_stream_reset()
209 		val = readl(hext_stream->pplc_addr + AZX_REG_PPLCCTL) &  in snd_hdac_ext_stream_reset()
214 	} while (--timeout);  in snd_hdac_ext_stream_reset()
216 	writel(val, hext_stream->pplc_addr + AZX_REG_PPLCCTL);  in snd_hdac_ext_stream_reset()
222 		val = readl(hext_stream->pplc_addr + AZX_REG_PPLCCTL) & AZX_PPLCCTL_STRST;  in snd_hdac_ext_stream_reset()
226 	} while (--timeout);  in snd_hdac_ext_stream_reset()
232  * snd_hdac_ext_stream_setup -  set up the SD for streaming
233  * @hext_stream: HD-audio ext core stream to set up
238 	struct hdac_stream *hstream = &hext_stream->hstream;  in snd_hdac_ext_stream_setup()
244 	val = readl(hext_stream->pplc_addr + AZX_REG_PPLCCTL);  in snd_hdac_ext_stream_setup()
246 		(hstream->stream_tag << AZX_PPLCCTL_STRM_SHIFT);  in snd_hdac_ext_stream_setup()
247 	writel(val, hext_stream->pplc_addr + AZX_REG_PPLCCTL);  in snd_hdac_ext_stream_setup()
250 	writew(fmt, hext_stream->pplc_addr + AZX_REG_PPLCFMT);  in snd_hdac_ext_stream_setup()
263 	if (!bus->ppcap) {  in hdac_ext_link_dma_stream_assign()
264 		dev_err(bus->dev, "stream type not supported\n");  in hdac_ext_link_dma_stream_assign()
268 	spin_lock_irq(&bus->reg_lock);  in hdac_ext_link_dma_stream_assign()
269 	list_for_each_entry(hstream, &bus->stream_list, list) {  in hdac_ext_link_dma_stream_assign()
273 		if (hstream->direction != substream->stream)  in hdac_ext_link_dma_stream_assign()
277 		if (!hext_stream->link_locked) {  in hdac_ext_link_dma_stream_assign()
285 		res->link_locked = 1;  in hdac_ext_link_dma_stream_assign()
286 		res->link_substream = substream;  in hdac_ext_link_dma_stream_assign()
288 	spin_unlock_irq(&bus->reg_lock);  in hdac_ext_link_dma_stream_assign()
299 	if (!bus->ppcap) {  in hdac_ext_host_dma_stream_assign()
300 		dev_err(bus->dev, "stream type not supported\n");  in hdac_ext_host_dma_stream_assign()
304 	spin_lock_irq(&bus->reg_lock);  in hdac_ext_host_dma_stream_assign()
305 	list_for_each_entry(hstream, &bus->stream_list, list) {  in hdac_ext_host_dma_stream_assign()
309 		if (hstream->direction != substream->stream)  in hdac_ext_host_dma_stream_assign()
312 		if (!hstream->opened) {  in hdac_ext_host_dma_stream_assign()
319 		res->hstream.opened = 1;  in hdac_ext_host_dma_stream_assign()
320 		res->hstream.running = 0;  in hdac_ext_host_dma_stream_assign()
321 		res->hstream.substream = substream;  in hdac_ext_host_dma_stream_assign()
323 	spin_unlock_irq(&bus->reg_lock);  in hdac_ext_host_dma_stream_assign()
329  * snd_hdac_ext_stream_assign - assign a stream for the PCM
330  * @bus: HD-audio core bus
374  * snd_hdac_ext_stream_release - release the assigned stream
375  * @hext_stream: HD-audio ext core stream to release
382 	struct hdac_bus *bus = hext_stream->hstream.bus;  in snd_hdac_ext_stream_release()
386 		snd_hdac_stream_release(&hext_stream->hstream);  in snd_hdac_ext_stream_release()
390 		spin_lock_irq(&bus->reg_lock);  in snd_hdac_ext_stream_release()
392 		if (!hext_stream->link_locked)  in snd_hdac_ext_stream_release()
394 		snd_hdac_stream_release_locked(&hext_stream->hstream);  in snd_hdac_ext_stream_release()
395 		spin_unlock_irq(&bus->reg_lock);  in snd_hdac_ext_stream_release()
399 		spin_lock_irq(&bus->reg_lock);  in snd_hdac_ext_stream_release()
401 		if (!hext_stream->hstream.opened)  in snd_hdac_ext_stream_release()
403 		hext_stream->link_locked = 0;  in snd_hdac_ext_stream_release()
404 		hext_stream->link_substream = NULL;  in snd_hdac_ext_stream_release()
405 		spin_unlock_irq(&bus->reg_lock);  in snd_hdac_ext_stream_release()
409 		dev_dbg(bus->dev, "Invalid type %d\n", type);  in snd_hdac_ext_stream_release()
416  * snd_hdac_ext_cstream_assign - assign a host stream for compress
417  * @bus: HD-audio core bus
430 	spin_lock_irq(&bus->reg_lock);  in snd_hdac_ext_cstream_assign()
431 	list_for_each_entry(hstream, &bus->stream_list, list) {  in snd_hdac_ext_cstream_assign()
434 		if (hstream->direction != cstream->direction)  in snd_hdac_ext_cstream_assign()
437 		if (!hstream->opened) {  in snd_hdac_ext_cstream_assign()
445 		res->hstream.opened = 1;  in snd_hdac_ext_cstream_assign()
446 		res->hstream.running = 0;  in snd_hdac_ext_cstream_assign()
447 		res->hstream.cstream = cstream;  in snd_hdac_ext_cstream_assign()
449 	spin_unlock_irq(&bus->reg_lock);  in snd_hdac_ext_cstream_assign()