30 static void generate_sine(const snd_pcm_channel_area_t *areas,   in generate_sine()  argument
51 		if ((areas[chn].first % 8) != 0) {  in generate_sine()
52 			printf("areas[%u].first == %u, aborting...\n", chn, areas[chn].first);  in generate_sine()
55 		samples[chn] = /*(signed short *)*/(((unsigned char *)areas[chn].addr) + (areas[chn].first / 8));  in generate_sine()
56 		if ((areas[chn].step % 16) != 0) {  in generate_sine()
57 			printf("areas[%u].step == %u, aborting...\n", chn, areas[chn].step);  in generate_sine()
60 		steps[chn] = areas[chn].step / 8;  in generate_sine()
250 		      snd_pcm_channel_area_t *areas)  in write_loop()  argument
257 		generate_sine(areas, 0, period_size, &phase);  in write_loop()
297 			       snd_pcm_channel_area_t *areas)  in write_and_poll_loop()  argument
340 		generate_sine(areas, 0, period_size, &phase);  in write_and_poll_loop()
386 	snd_pcm_channel_area_t *areas;  member
395 	snd_pcm_channel_area_t *areas = data->areas;  in async_callback()  local
401 		generate_sine(areas, 0, period_size, &data->phase);  in async_callback()
417 		      snd_pcm_channel_area_t *areas)  in async_loop()  argument
424 	data.areas = areas;  in async_loop()
432 		generate_sine(areas, 0, period_size, &data.phase);  in async_loop()
538 			     snd_pcm_channel_area_t *areas ATTRIBUTE_UNUSED)  in async_direct_loop()
548 	data.areas = NULL;	/* we do not require the global areas for direct write */  in async_direct_loop()
596 		       snd_pcm_channel_area_t *areas ATTRIBUTE_UNUSED)  in direct_loop()
682 			     snd_pcm_channel_area_t *areas)  in direct_write_loop()  argument
689 		generate_sine(areas, 0, period_size, &phase);  in direct_write_loop()
718 			     snd_pcm_channel_area_t *areas);
788 	snd_pcm_channel_area_t *areas;  in main()  local
905 	areas = calloc(channels, sizeof(snd_pcm_channel_area_t));  in main()
906 	if (areas == NULL) {  in main()
911 		areas[chn].addr = samples;  in main()
912 		areas[chn].first = chn * snd_pcm_format_physical_width(format);  in main()
913 		areas[chn].step = channels * snd_pcm_format_physical_width(format);  in main()
916 	err = transfer_methods[method].transfer_loop(handle, samples, areas);  in main()
920 	free(areas);  in main()