74     proxy->pcm = NULL;  in proxy_prepare()
93     proxy->pcm = pcm_open(profile->card, profile->device,  in proxy_open()
95     if (proxy->pcm == NULL) {  in proxy_open()
99     if (!pcm_is_ready(proxy->pcm)) {  in proxy_open()
100         ALOGE("  proxy_open() pcm_open() failed: %s", pcm_get_error(proxy->pcm));  in proxy_open()
104         pcm_close(proxy->pcm);  in proxy_open()
105         proxy->pcm = NULL;  in proxy_open()
114     ALOGV("proxy_close() [pcm:%p]", proxy->pcm);  in proxy_close()
116     if (proxy->pcm != NULL) {  in proxy_close()
117         pcm_close(proxy->pcm);  in proxy_close()
118         proxy->pcm = NULL;  in proxy_close()
170     if (proxy->pcm != NULL  in proxy_get_presentation_position()
171             && pcm_get_htimestamp(proxy->pcm, &avail, timestamp) == 0) {  in proxy_get_presentation_position()
195     int ret = pcm_write(proxy->pcm, data, count);  in proxy_write()
204     return pcm_read(proxy->pcm, data, count);  in proxy_read()