90 	struct snd_pcm_runtime *runtime = isight->pcm->runtime;  in isight_update_pointers()  local
97 	if (ptr >= runtime->buffer_size)  in isight_update_pointers()
98 		ptr -= runtime->buffer_size;  in isight_update_pointers()
102 	if (isight->period_counter >= runtime->period_size) {  in isight_update_pointers()
103 		isight->period_counter -= runtime->period_size;  in isight_update_pointers()
111 	struct snd_pcm_runtime *runtime;  in isight_samples()  local
117 	runtime = isight->pcm->runtime;  in isight_samples()
118 	if (isight->buffer_pointer + count <= runtime->buffer_size) {  in isight_samples()
119 		memcpy(runtime->dma_area + isight->buffer_pointer * 4,  in isight_samples()
122 		count1 = runtime->buffer_size - isight->buffer_pointer;  in isight_samples()
123 		memcpy(runtime->dma_area + isight->buffer_pointer * 4,  in isight_samples()
126 		memcpy(runtime->dma_area, samples, (count - count1) * 4);  in isight_samples()
140 	struct snd_pcm_runtime *runtime;  in isight_dropped_samples()  local
147 	runtime = isight->pcm->runtime;  in isight_dropped_samples()
149 	if (dropped < runtime->buffer_size) {  in isight_dropped_samples()
150 		if (isight->buffer_pointer + dropped <= runtime->buffer_size) {  in isight_dropped_samples()
151 			memset(runtime->dma_area + isight->buffer_pointer * 4,  in isight_dropped_samples()
154 			count1 = runtime->buffer_size - isight->buffer_pointer;  in isight_dropped_samples()
155 			memset(runtime->dma_area + isight->buffer_pointer * 4,  in isight_dropped_samples()
157 			memset(runtime->dma_area, 0, (dropped - count1) * 4);  in isight_dropped_samples()
268 	substream->runtime->hw = hardware;  in isight_open()