1 // SPDX-License-Identifier: GPL-2.0-or-later
13 #include <linux/module.h>
18 #include <media/v4l2-device.h>
23 #include "cx18-driver.h"
24 #include "cx18-version.h"
25 #include "cx18-alsa.h"
26 #include "cx18-alsa-pcm.h"
33 			printk(KERN_INFO "%s: " fmt, "cx18-alsa", ## arg); \
51 	return to_cx18(v4l2_dev)->alsa;  in to_snd_cx18_card()
59 	if (cxsc->v4l2_dev != NULL)  in snd_cx18_card_free()
60 		to_cx18(cxsc->v4l2_dev)->alsa = NULL;  in snd_cx18_card_free()
62 	/* FIXME - take any other stopping actions needed */  in snd_cx18_card_free()
71 	snd_cx18_card_free(sc->private_data);  in snd_cx18_card_private_free()
72 	sc->private_data = NULL;  in snd_cx18_card_private_free()
73 	sc->private_free = NULL;  in snd_cx18_card_private_free()
82 		return -ENOMEM;  in snd_cx18_card_create()
84 	(*cxsc)->v4l2_dev = v4l2_dev;  in snd_cx18_card_create()
85 	(*cxsc)->sc = sc;  in snd_cx18_card_create()
87 	sc->private_data = *cxsc;  in snd_cx18_card_create()
88 	sc->private_free = snd_cx18_card_private_free;  in snd_cx18_card_create()
95 	struct cx18 *cx = to_cx18(cxsc->v4l2_dev);  in snd_cx18_card_set_names()
96 	struct snd_card *sc = cxsc->sc;  in snd_cx18_card_set_names()
98 	/* sc->driver is used by alsa-lib's configurator: simple, unique */  in snd_cx18_card_set_names()
99 	strscpy(sc->driver, "CX23418", sizeof(sc->driver));  in snd_cx18_card_set_names()
101 	/* sc->shortname is a symlink in /proc/asound: CX18-M -> cardN */  in snd_cx18_card_set_names()
102 	snprintf(sc->shortname,  sizeof(sc->shortname), "CX18-%d",  in snd_cx18_card_set_names()
103 		 cx->instance);  in snd_cx18_card_set_names()
105 	/* sc->longname is read from /proc/asound/cards */  in snd_cx18_card_set_names()
106 	snprintf(sc->longname, sizeof(sc->longname),  in snd_cx18_card_set_names()
107 		 "CX23418 #%d %s TV/FM Radio/Line-In Capture",  in snd_cx18_card_set_names()
108 		 cx->instance, cx->card_name);  in snd_cx18_card_set_names()
123 	/* This is a no-op for us.  We'll use the cx->instance */  in snd_cx18_init()
125 	/* (2) Create a card instance */  in snd_cx18_init()
126 	ret = snd_card_new(&cx->pci_dev->dev,  in snd_cx18_init()
154 	/* FIXME - proc files */  in snd_cx18_init()
158 	cx->alsa = cxsc;  in snd_cx18_init()
160 	/* (6) Register the card instance */  in snd_cx18_init()
163 		cx->alsa = NULL;  in snd_cx18_init()
181 	struct v4l2_device *v4l2_dev = &cx->v4l2_dev;  in cx18_alsa_load()
185 		printk(KERN_ERR "cx18-alsa: %s: struct v4l2_device * is NULL\n",  in cx18_alsa_load()
192 		printk(KERN_ERR "cx18-alsa cx is NULL\n");  in cx18_alsa_load()
196 	s = &cx->streams[CX18_ENC_STREAM_TYPE_PCM];  in cx18_alsa_load()
197 	if (s->video_dev.v4l2_dev == NULL) {  in cx18_alsa_load()
198 		CX18_DEBUG_ALSA_INFO("%s: PCM stream for card is disabled - skipping\n",  in cx18_alsa_load()
203 	if (cx->alsa != NULL) {  in cx18_alsa_load()
213 		CX18_DEBUG_ALSA_INFO("%s: created cx18 ALSA interface instance\n",  in cx18_alsa_load()
221 	printk(KERN_INFO "cx18-alsa: module loading...\n");  in cx18_alsa_init()
228 	struct cx18 *cx = to_cx18(cxsc->v4l2_dev);  in snd_cx18_exit()
230 	/* FIXME - pointer checks & shutdown cxsc */  in snd_cx18_exit()
232 	snd_card_free(cxsc->sc);  in snd_cx18_exit()
233 	cx->alsa = NULL;  in snd_cx18_exit()
242 		printk(KERN_ERR "cx18-alsa: %s: struct v4l2_device * is NULL\n",  in cx18_alsa_exit_callback()
263 	printk(KERN_INFO "cx18-alsa: module unloading...\n");  in cx18_alsa_exit()
270 	printk(KERN_INFO "cx18-alsa: module unload complete\n");  in cx18_alsa_exit()