20 /* ulaw[unsigned char] -> signed 16-bit */
22 /* alaw[unsigned char] -> signed 16-bit */
28 /* signed 16-bit -> law */
32 /* alaw -> ulaw */
34 /* ulaw -> alaw */
61 		pcm_val = -pcm_val;  in linear2alaw()
84 		i = (i + 0x100) << (seg - 1);  in alaw2linear()
85 	return (short int) ((alaw & 0x80)  ?  i  :  -i);  in alaw2linear()
93 	mu = 255 - ulaw;  in ulaw2linear()
99 		y = -y;  in ulaw2linear()
103 #define BIAS 0x84   /*!< define the add-in bias for 16 bit samples */
110 		5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,  in linear2ulaw()
111 		5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,  in linear2ulaw()
112 		6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,  in linear2ulaw()
113 		6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,  in linear2ulaw()
114 		6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,  in linear2ulaw()
115 		6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,  in linear2ulaw()
127 	/* Get the sample into sign-magnitude. */  in linear2ulaw()
130 		sample = -sample;	      /* get magnitude */  in linear2ulaw()
164 		/* generating ulaw-table */  in dsp_audio_generate_s2law_table()
165 		for (i = -32768; i < 32768; i++) {  in dsp_audio_generate_s2law_table()
170 		/* generating alaw-table */  in dsp_audio_generate_s2law_table()
171 		for (i = -32768; i < 32768; i++) {  in dsp_audio_generate_s2law_table()
180  * the seven bit sample is the number of every second alaw-sample ordered by
187  * generate table for conversion law from/to 7-bit alaw-like sample *
210 		/* spl is the source: the law-sample (converted to alaw) */  in dsp_audio_generate_seven()
214 		/* find the 7-bit-sample */  in dsp_audio_generate_seven()
219 		/* write 7-bit audio value */  in dsp_audio_generate_seven()
231 /* mix 2*law -> law */
252 			if (sample < -32768)  in dsp_audio_generate_mix_table()
253 				sample = -32768;  in dsp_audio_generate_mix_table()
316 			(dsp_audio_law_to_s32[i] * denum[6] / num[6]) & 0xffff];  in dsp_audio_generate_volume_changes()
318 			(dsp_audio_law_to_s32[i] * denum[5] / num[5]) & 0xffff];  in dsp_audio_generate_volume_changes()
330 		if (sample < -32768)  in dsp_audio_generate_volume_changes()
331 			sample = -32768;  in dsp_audio_generate_volume_changes()
336 		if (sample < -32768)  in dsp_audio_generate_volume_changes()
337 			sample = -32768;  in dsp_audio_generate_volume_changes()
342 		if (sample < -32768)  in dsp_audio_generate_volume_changes()
343 			sample = -32768;  in dsp_audio_generate_volume_changes()
348 		if (sample < -32768)  in dsp_audio_generate_volume_changes()
349 			sample = -32768;  in dsp_audio_generate_volume_changes()
354 		if (sample < -32768)  in dsp_audio_generate_volume_changes()
355 			sample = -32768;  in dsp_audio_generate_volume_changes()
359 		sample = dsp_audio_law_to_s32[i] * num[5] / denum[5];  in dsp_audio_generate_volume_changes()
360 		if (sample < -32768)  in dsp_audio_generate_volume_changes()
361 			sample = -32768;  in dsp_audio_generate_volume_changes()
365 		sample = dsp_audio_law_to_s32[i] * num[6] / denum[6];  in dsp_audio_generate_volume_changes()
366 		if (sample < -32768)  in dsp_audio_generate_volume_changes()
367 			sample = -32768;  in dsp_audio_generate_volume_changes()
372 		if (sample < -32768)  in dsp_audio_generate_volume_changes()
373 			sample = -32768;  in dsp_audio_generate_volume_changes()
388  * -8 to 8, which is a shift to the power of 2. 0 == no volume, 3 == volume*8
413 	ii = skb->len;  in dsp_change_volume()
414 	p = skb->data;  in dsp_change_volume()