1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * Copyright (C) 2010-2013 Bluecherry, LLC <https://www.bluecherrydvr.com>
26 #include "solo6x10-tw28.h"
33 /* Sets up channels 16-19 for decoding and 0-15 for encoding */
37 #define BITRATE			25  macro
43 #define G723_INTR_ORDER		4 /* 0 - 4 */
57 	clk_div = (solo_dev->clock_mhz * 1000000)  in solo_g723_config()
58 		/ (SAMPLERATE * (BITRATE * 2) * 2);  in solo_g723_config()
61 		       SOLO_AUDIO_BITRATE(BITRATE)  in solo_g723_config()
79 		&solo_dev->snd_pcm->streams[SNDRV_PCM_STREAM_CAPTURE];  in solo_g723_isr()
83 	for (ss = pstr->substream; ss != NULL; ss = ss->next) {  in solo_g723_isr()
93 		if (!solo_pcm->on)  in solo_g723_isr()
127 	solo_pcm->g723_buf = dma_alloc_coherent(&solo_dev->pdev->dev,  in snd_solo_pcm_open()
129 						&solo_pcm->g723_dma,  in snd_solo_pcm_open()
131 	if (solo_pcm->g723_buf == NULL)  in snd_solo_pcm_open()
134 	spin_lock_init(&solo_pcm->lock);  in snd_solo_pcm_open()
135 	solo_pcm->solo_dev = solo_dev;  in snd_solo_pcm_open()
136 	ss->runtime->hw = snd_solo_pcm_hw;  in snd_solo_pcm_open()
144 	return -ENOMEM;  in snd_solo_pcm_open()
151 	snd_pcm_substream_chip(ss) = solo_pcm->solo_dev;  in snd_solo_pcm_close()
152 	dma_free_coherent(&solo_pcm->solo_dev->pdev->dev, G723_PERIOD_BYTES,  in snd_solo_pcm_close()
153 			  solo_pcm->g723_buf, solo_pcm->g723_dma);  in snd_solo_pcm_close()
162 	struct solo_dev *solo_dev = solo_pcm->solo_dev;  in snd_solo_pcm_trigger()
165 	spin_lock(&solo_pcm->lock);  in snd_solo_pcm_trigger()
169 		if (solo_pcm->on == 0) {  in snd_solo_pcm_trigger()
171 			if (atomic_inc_return(&solo_dev->snd_users) == 1)  in snd_solo_pcm_trigger()
173 			solo_pcm->on = 1;  in snd_solo_pcm_trigger()
177 		if (solo_pcm->on) {  in snd_solo_pcm_trigger()
179 			if (atomic_dec_return(&solo_dev->snd_users) == 0)  in snd_solo_pcm_trigger()
181 			solo_pcm->on = 0;  in snd_solo_pcm_trigger()
185 		ret = -EINVAL;  in snd_solo_pcm_trigger()
188 	spin_unlock(&solo_pcm->lock);  in snd_solo_pcm_trigger()
201 	struct solo_dev *solo_dev = solo_pcm->solo_dev;  in snd_solo_pcm_pointer()
212 	struct solo_dev *solo_dev = solo_pcm->solo_dev;  in snd_solo_pcm_copy()
218 		err = solo_p2m_dma_t(solo_dev, 0, solo_pcm->g723_dma,  in snd_solo_pcm_copy()
221 				     (ss->number * G723_PERIOD_BYTES),  in snd_solo_pcm_copy()
226 		if (copy_to_iter(solo_pcm->g723_buf, G723_PERIOD_BYTES, dst) !=  in snd_solo_pcm_copy()
228 			return -EFAULT;  in snd_solo_pcm_copy()
246 	info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;  in snd_solo_capture_volume_info()
247 	info->count = 1;  in snd_solo_capture_volume_info()
248 	info->value.integer.min = 0;  in snd_solo_capture_volume_info()
249 	info->value.integer.max = 15;  in snd_solo_capture_volume_info()
250 	info->value.integer.step = 1;  in snd_solo_capture_volume_info()
259 	u8 ch = value->id.numid - 1;  in snd_solo_capture_volume_get()
261 	value->value.integer.value[0] = tw28_get_audio_gain(solo_dev, ch);  in snd_solo_capture_volume_get()
270 	u8 ch = value->id.numid - 1;  in snd_solo_capture_volume_put()
274 	if (old_val == value->value.integer.value[0])  in snd_solo_capture_volume_put()
277 	tw28_set_audio_gain(solo_dev, ch, value->value.integer.value[0]);  in snd_solo_capture_volume_put()
292 	struct snd_card *card = solo_dev->snd_card;  in solo_snd_pcm_init()
298 	ret = snd_pcm_new(card, card->driver, 0, 0, solo_dev->nr_chans,  in solo_snd_pcm_init()
307 	pcm->info_flags = 0;  in solo_snd_pcm_init()
308 	strscpy(pcm->name, card->shortname, sizeof(pcm->name));  in solo_snd_pcm_init()
310 	for (i = 0, ss = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;  in solo_snd_pcm_init()
311 	     ss; ss = ss->next, i++)  in solo_snd_pcm_init()
312 		sprintf(ss->name, "Camera #%d Audio", i);  in solo_snd_pcm_init()
320 	solo_dev->snd_pcm = pcm;  in solo_snd_pcm_init()
333 	atomic_set(&solo_dev->snd_users, 0);  in solo_g723_init()
336 	sprintf(name, "Softlogic%d", solo_dev->vfd->num);  in solo_g723_init()
338 	ret = snd_card_new(&solo_dev->pdev->dev,  in solo_g723_init()
340 			   &solo_dev->snd_card);  in solo_g723_init()
344 	card = solo_dev->snd_card;  in solo_g723_init()
346 	strscpy(card->driver, SOLO6X10_NAME, sizeof(card->driver));  in solo_g723_init()
347 	strscpy(card->shortname, "SOLO-6x10 Audio", sizeof(card->shortname));  in solo_g723_init()
348 	sprintf(card->longname, "%s on %s IRQ %d", card->shortname,  in solo_g723_init()
349 		pci_name(solo_dev->pdev), solo_dev->pdev->irq);  in solo_g723_init()
356 	strscpy(card->mixername, "SOLO-6x10", sizeof(card->mixername));  in solo_g723_init()
358 	kctl.count = solo_dev->nr_chans;  in solo_g723_init()
374 	dev_info(&solo_dev->pdev->dev, "Alsa sound card as %s\n", name);  in solo_g723_init()
385 	if (!solo_dev->snd_card)  in solo_g723_exit()
391 	snd_card_free(solo_dev->snd_card);  in solo_g723_exit()
392 	solo_dev->snd_card = NULL;  in solo_g723_exit()