1 // SPDX-License-Identifier: GPL-2.0-or-later
11 #include "ivtv-driver.h"
12 #include "ivtv-version.h"
13 #include "ivtv-alsa.h"
14 #include "ivtv-alsa-pcm.h"
48 	return to_ivtv(v4l2_dev)->alsa;  in to_snd_ivtv_card()
56 	if (itvsc->v4l2_dev != NULL)  in snd_ivtv_card_free()
57 		to_ivtv(itvsc->v4l2_dev)->alsa = NULL;  in snd_ivtv_card_free()
59 	/* FIXME - take any other stopping actions needed */  in snd_ivtv_card_free()
68 	snd_ivtv_card_free(sc->private_data);  in snd_ivtv_card_private_free()
69 	sc->private_data = NULL;  in snd_ivtv_card_private_free()
70 	sc->private_free = NULL;  in snd_ivtv_card_private_free()
79 		return -ENOMEM;  in snd_ivtv_card_create()
81 	(*itvsc)->v4l2_dev = v4l2_dev;  in snd_ivtv_card_create()
82 	(*itvsc)->sc = sc;  in snd_ivtv_card_create()
84 	sc->private_data = *itvsc;  in snd_ivtv_card_create()
85 	sc->private_free = snd_ivtv_card_private_free;  in snd_ivtv_card_create()
92 	struct ivtv *itv = to_ivtv(itvsc->v4l2_dev);  in snd_ivtv_card_set_names()
93 	struct snd_card *sc = itvsc->sc;  in snd_ivtv_card_set_names()
95 	/* sc->driver is used by alsa-lib's configurator: simple, unique */  in snd_ivtv_card_set_names()
96 	strscpy(sc->driver, "CX2341[56]", sizeof(sc->driver));  in snd_ivtv_card_set_names()
98 	/* sc->shortname is a symlink in /proc/asound: IVTV-M -> cardN */  in snd_ivtv_card_set_names()
99 	snprintf(sc->shortname,  sizeof(sc->shortname), "IVTV-%d",  in snd_ivtv_card_set_names()
100 		 itv->instance);  in snd_ivtv_card_set_names()
102 	/* sc->longname is read from /proc/asound/cards */  in snd_ivtv_card_set_names()
103 	snprintf(sc->longname, sizeof(sc->longname),  in snd_ivtv_card_set_names()
104 		 "CX2341[56] #%d %s TV/FM Radio/Line-In Capture",  in snd_ivtv_card_set_names()
105 		 itv->instance, itv->card_name);  in snd_ivtv_card_set_names()
120 	/* This is a no-op for us.  We'll use the itv->instance */  in snd_ivtv_init()
122 	/* (2) Create a card instance */  in snd_ivtv_init()
124 	idx = index[itv->instance] == -1 ? SNDRV_DEFAULT_IDX1 : index[itv->instance];  in snd_ivtv_init()
125 	ret = snd_card_new(&itv->pdev->dev,  in snd_ivtv_init()
153 	/* FIXME - proc files */  in snd_ivtv_init()
157 	itv->alsa = itvsc;  in snd_ivtv_init()
159 	/* (6) Register the card instance */  in snd_ivtv_init()
162 		itv->alsa = NULL;  in snd_ivtv_init()
168 	IVTV_ALSA_INFO("%s: Instance %d registered as ALSA card %d\n",  in snd_ivtv_init()
169 			 __func__, itv->instance, sc->number);  in snd_ivtv_init()
183 	struct v4l2_device *v4l2_dev = &itv->v4l2_dev;  in ivtv_alsa_load()
187 		pr_err("ivtv-alsa: %s: struct v4l2_device * is NULL\n",  in ivtv_alsa_load()
194 		pr_err("ivtv-alsa itv is NULL\n");  in ivtv_alsa_load()
198 	s = &itv->streams[IVTV_ENC_STREAM_TYPE_PCM];  in ivtv_alsa_load()
199 	if (s->vdev.v4l2_dev == NULL) {  in ivtv_alsa_load()
200 		IVTV_DEBUG_ALSA_INFO("PCM stream for card is disabled - skipping\n");  in ivtv_alsa_load()
204 	if (itv->alsa != NULL) {  in ivtv_alsa_load()
214 		IVTV_DEBUG_ALSA_INFO("created ivtv ALSA interface instance\n");  in ivtv_alsa_load()
221 	pr_info("ivtv-alsa: module loading...\n");  in ivtv_alsa_init()
228 	struct ivtv *itv = to_ivtv(itvsc->v4l2_dev);  in snd_ivtv_exit()
230 	/* FIXME - pointer checks & shutdown itvsc */  in snd_ivtv_exit()
232 	snd_card_free(itvsc->sc);  in snd_ivtv_exit()
233 	itv->alsa = NULL;  in snd_ivtv_exit()
242 		pr_err("ivtv-alsa: %s: struct v4l2_device * is NULL\n",  in ivtv_alsa_exit_callback()
263 	pr_info("ivtv-alsa: module unloading...\n");  in ivtv_alsa_exit()
270 	pr_info("ivtv-alsa: module unload complete\n");  in ivtv_alsa_exit()