1 // SPDX-License-Identifier: GPL-2.0-only
13  * snd_pcm_create_iec958_consumer_default - create default consumer format IEC958 channel status
14  * @cs: channel status buffer, at least four bytes
17  * Create the consumer format channel status data in @cs of maximum size
18  * @len. When relevant, the configuration-dependant bits will be set as
29 int snd_pcm_create_iec958_consumer_default(u8 *cs, size_t len)  in snd_pcm_create_iec958_consumer_default()  argument
32 		return -EINVAL;  in snd_pcm_create_iec958_consumer_default()
34 	memset(cs, 0, len);  in snd_pcm_create_iec958_consumer_default()
36 	cs[0] = IEC958_AES0_CON_NOT_COPYRIGHT | IEC958_AES0_CON_EMPHASIS_NONE;  in snd_pcm_create_iec958_consumer_default()
37 	cs[1] = IEC958_AES1_CON_GENERAL;  in snd_pcm_create_iec958_consumer_default()
38 	cs[2] = IEC958_AES2_CON_SOURCE_UNSPEC | IEC958_AES2_CON_CHANNEL_UNSPEC;  in snd_pcm_create_iec958_consumer_default()
39 	cs[3] = IEC958_AES3_CON_CLOCK_1000PPM | IEC958_AES3_CON_FS_NOTID;  in snd_pcm_create_iec958_consumer_default()
42 		cs[4] = IEC958_AES4_CON_WORDLEN_NOTID;  in snd_pcm_create_iec958_consumer_default()
49 				u8 *cs, size_t len)  in fill_iec958_consumer()  argument
52 		return -EINVAL;  in fill_iec958_consumer()
54 	if ((cs[3] & IEC958_AES3_CON_FS) == IEC958_AES3_CON_FS_NOTID) {  in fill_iec958_consumer()
80 				return -EINVAL;  in fill_iec958_consumer()
83 		cs[3] &= ~IEC958_AES3_CON_FS;  in fill_iec958_consumer()
84 		cs[3] |= fs;  in fill_iec958_consumer()
88 	    (cs[4] & IEC958_AES4_CON_WORDLEN) == IEC958_AES4_CON_WORDLEN_NOTID) {  in fill_iec958_consumer()
103 		case 32: /* Assume 24-bit width for 32-bit samples. */  in fill_iec958_consumer()
109 			return -EINVAL;  in fill_iec958_consumer()
112 		cs[4] &= ~IEC958_AES4_CON_WORDLEN;  in fill_iec958_consumer()
113 		cs[4] |= ws;  in fill_iec958_consumer()
120  * snd_pcm_fill_iec958_consumer - Fill consumer format IEC958 channel status
121  * @runtime: pcm runtime structure with ->rate filled in
122  * @cs: channel status buffer, at least four bytes
134 				 u8 *cs, size_t len)  in snd_pcm_fill_iec958_consumer()  argument
136 	return fill_iec958_consumer(runtime->rate,  in snd_pcm_fill_iec958_consumer()
137 				    snd_pcm_format_width(runtime->format),  in snd_pcm_fill_iec958_consumer()
138 				    cs, len);  in snd_pcm_fill_iec958_consumer()
143  * snd_pcm_fill_iec958_consumer_hw_params - Fill consumer format IEC958 channel status
145  * @cs: channel status buffer, at least four bytes
157 					   u8 *cs, size_t len)  in snd_pcm_fill_iec958_consumer_hw_params()  argument
159 	return fill_iec958_consumer(params_rate(params), params_width(params), cs, len);  in snd_pcm_fill_iec958_consumer_hw_params()
164  * snd_pcm_create_iec958_consumer - create consumer format IEC958 channel status
165  * @runtime: pcm runtime structure with ->rate filled in
166  * @cs: channel status buffer, at least four bytes
169  * Create the consumer format channel status data in @cs of maximum size
176 int snd_pcm_create_iec958_consumer(struct snd_pcm_runtime *runtime, u8 *cs,  in snd_pcm_create_iec958_consumer()  argument
181 	ret = snd_pcm_create_iec958_consumer_default(cs, len);  in snd_pcm_create_iec958_consumer()
182 	if (ret < 0)  in snd_pcm_create_iec958_consumer()
185 	return snd_pcm_fill_iec958_consumer(runtime, cs, len);  in snd_pcm_create_iec958_consumer()
190  * snd_pcm_create_iec958_consumer_hw_params - create IEC958 channel status
192  * @cs: channel status buffer, at least four bytes
195  * Create the consumer format channel status data in @cs of maximum size
203 					     u8 *cs, size_t len)  in snd_pcm_create_iec958_consumer_hw_params()  argument
207 	ret = snd_pcm_create_iec958_consumer_default(cs, len);  in snd_pcm_create_iec958_consumer_hw_params()
208 	if (ret < 0)  in snd_pcm_create_iec958_consumer_hw_params()
211 	return fill_iec958_consumer(params_rate(params), params_width(params), cs, len);  in snd_pcm_create_iec958_consumer_hw_params()