873 		struct esschan *es;  in snd_es1968_bob_dec()  local
874 		list_for_each_entry(es, &chip->substream_list, list) {  in snd_es1968_bob_dec()
875 			if (max_freq < es->bob_freq)  in snd_es1968_bob_dec()
876 				max_freq = es->bob_freq;  in snd_es1968_bob_dec()
887 snd_es1968_calc_bob_rate(struct es1968 *chip, struct esschan *es,  in snd_es1968_calc_bob_rate()  argument
892 	if (es->fmt & ESS_FMT_STEREO)  in snd_es1968_calc_bob_rate()
894 	if (es->fmt & ESS_FMT_16BIT)  in snd_es1968_calc_bob_rate()
896 	freq /= es->frag_size;  in snd_es1968_calc_bob_rate()
921 snd_es1968_get_dma_ptr(struct es1968 *chip, struct esschan *es)  in snd_es1968_get_dma_ptr()  argument
925 	offset = apu_get_register(chip, es->apu[0], 5);  in snd_es1968_get_dma_ptr()
927 	offset -= es->base[0];  in snd_es1968_get_dma_ptr()
949 static void snd_es1968_pcm_start(struct es1968 *chip, struct esschan *es)  in snd_es1968_pcm_start()  argument
952 	__apu_set_register(chip, es->apu[0], 5, es->base[0]);  in snd_es1968_pcm_start()
953 	snd_es1968_trigger_apu(chip, es->apu[0], es->apu_mode[0]);  in snd_es1968_pcm_start()
954 	if (es->mode == ESM_MODE_CAPTURE) {  in snd_es1968_pcm_start()
955 		__apu_set_register(chip, es->apu[2], 5, es->base[2]);  in snd_es1968_pcm_start()
956 		snd_es1968_trigger_apu(chip, es->apu[2], es->apu_mode[2]);  in snd_es1968_pcm_start()
958 	if (es->fmt & ESS_FMT_STEREO) {  in snd_es1968_pcm_start()
959 		__apu_set_register(chip, es->apu[1], 5, es->base[1]);  in snd_es1968_pcm_start()
960 		snd_es1968_trigger_apu(chip, es->apu[1], es->apu_mode[1]);  in snd_es1968_pcm_start()
961 		if (es->mode == ESM_MODE_CAPTURE) {  in snd_es1968_pcm_start()
962 			__apu_set_register(chip, es->apu[3], 5, es->base[3]);  in snd_es1968_pcm_start()
963 			snd_es1968_trigger_apu(chip, es->apu[3], es->apu_mode[3]);  in snd_es1968_pcm_start()
969 static void snd_es1968_pcm_stop(struct es1968 *chip, struct esschan *es)  in snd_es1968_pcm_stop()  argument
972 	snd_es1968_trigger_apu(chip, es->apu[0], 0);  in snd_es1968_pcm_stop()
973 	snd_es1968_trigger_apu(chip, es->apu[1], 0);  in snd_es1968_pcm_stop()
974 	if (es->mode == ESM_MODE_CAPTURE) {  in snd_es1968_pcm_stop()
975 		snd_es1968_trigger_apu(chip, es->apu[2], 0);  in snd_es1968_pcm_stop()
976 		snd_es1968_trigger_apu(chip, es->apu[3], 0);  in snd_es1968_pcm_stop()
982 static void snd_es1968_program_wavecache(struct es1968 *chip, struct esschan *es,  in snd_es1968_program_wavecache()  argument
988 		if (!(es->fmt & ESS_FMT_16BIT))  in snd_es1968_program_wavecache()
990 		if (es->fmt & ESS_FMT_STEREO)  in snd_es1968_program_wavecache()
995 	wave_set_register(chip, es->apu[channel] << 3, tmpval);  in snd_es1968_program_wavecache()
998 	es->wc_map[channel] = tmpval;  in snd_es1968_program_wavecache()
1003 static void snd_es1968_playback_setup(struct es1968 *chip, struct esschan *es,  in snd_es1968_playback_setup()  argument
1013 	size = es->dma_size >> es->wav_shift;  in snd_es1968_playback_setup()
1015 	if (es->fmt & ESS_FMT_STEREO)  in snd_es1968_playback_setup()
1019 		apu = es->apu[channel];  in snd_es1968_playback_setup()
1021 		snd_es1968_program_wavecache(chip, es, channel, es->memory->buf.addr, 0);  in snd_es1968_playback_setup()
1024 		pa = es->memory->buf.addr;  in snd_es1968_playback_setup()
1030 		if (es->fmt & ESS_FMT_STEREO) {  in snd_es1968_playback_setup()
1034 			if (es->fmt & ESS_FMT_16BIT)  in snd_es1968_playback_setup()
1040 		es->base[channel] = pa & 0xFFFF;  in snd_es1968_playback_setup()
1062 		if (es->fmt & ESS_FMT_16BIT)  in snd_es1968_playback_setup()
1063 			es->apu_mode[channel] = ESM_APU_16BITLINEAR;  in snd_es1968_playback_setup()
1065 			es->apu_mode[channel] = ESM_APU_8BITLINEAR;  in snd_es1968_playback_setup()
1067 		if (es->fmt & ESS_FMT_STEREO) {  in snd_es1968_playback_setup()
1075 			es->apu_mode[channel] += 1;	/* stereo */  in snd_es1968_playback_setup()
1095 	if (!(es->fmt & ESS_FMT_16BIT) && !(es->fmt & ESS_FMT_STEREO))  in snd_es1968_playback_setup()
1101 	snd_es1968_apu_set_freq(chip, es->apu[0], freq);  in snd_es1968_playback_setup()
1102 	snd_es1968_apu_set_freq(chip, es->apu[1], freq);  in snd_es1968_playback_setup()
1106 static void init_capture_apu(struct es1968 *chip, struct esschan *es, int channel,  in init_capture_apu()  argument
1110 	int i, apu = es->apu[channel];  in init_capture_apu()
1112 	es->apu_mode[channel] = mode;  in init_capture_apu()
1115 	snd_es1968_program_wavecache(chip, es, channel, pa, 1);  in init_capture_apu()
1123 	es->base[channel] = pa & 0xFFFF;  in init_capture_apu()
1151 static void snd_es1968_capture_setup(struct es1968 *chip, struct esschan *es,  in snd_es1968_capture_setup()  argument
1158 	size = es->dma_size >> es->wav_shift;  in snd_es1968_capture_setup()
1172 	init_capture_apu(chip, es, 2,  in snd_es1968_capture_setup()
1173 			 es->mixbuf->buf.addr, ESM_MIXBUF_SIZE/4, /* in words */  in snd_es1968_capture_setup()
1176 	init_capture_apu(chip, es, 0, es->memory->buf.addr, size,  in snd_es1968_capture_setup()
1177 			 ESM_APU_SRCONVERTOR, es->apu[2]);  in snd_es1968_capture_setup()
1178 	if (es->fmt & ESS_FMT_STEREO) {  in snd_es1968_capture_setup()
1180 		init_capture_apu(chip, es, 3,  in snd_es1968_capture_setup()
1181 				 es->mixbuf->buf.addr + ESM_MIXBUF_SIZE/2,  in snd_es1968_capture_setup()
1185 		init_capture_apu(chip, es, 1,  in snd_es1968_capture_setup()
1186 				 es->memory->buf.addr + size*2, size,  in snd_es1968_capture_setup()
1187 				 ESM_APU_SRCONVERTOR, es->apu[3]);  in snd_es1968_capture_setup()
1200 	snd_es1968_apu_set_freq(chip, es->apu[0], freq);  in snd_es1968_capture_setup()
1201 	snd_es1968_apu_set_freq(chip, es->apu[1], freq);  in snd_es1968_capture_setup()
1205 	snd_es1968_apu_set_freq(chip, es->apu[2], freq);  in snd_es1968_capture_setup()
1206 	snd_es1968_apu_set_freq(chip, es->apu[3], freq);  in snd_es1968_capture_setup()
1224 	struct esschan *es = runtime->private_data;  in snd_es1968_pcm_prepare()  local
1226 	es->dma_size = snd_pcm_lib_buffer_bytes(substream);  in snd_es1968_pcm_prepare()
1227 	es->frag_size = snd_pcm_lib_period_bytes(substream);  in snd_es1968_pcm_prepare()
1229 	es->wav_shift = 1; /* maestro handles always 16bit */  in snd_es1968_pcm_prepare()
1230 	es->fmt = 0;  in snd_es1968_pcm_prepare()
1232 		es->fmt |= ESS_FMT_16BIT;  in snd_es1968_pcm_prepare()
1234 		es->fmt |= ESS_FMT_STEREO;  in snd_es1968_pcm_prepare()
1235 		if (es->fmt & ESS_FMT_16BIT) /* 8bit is already word shifted */  in snd_es1968_pcm_prepare()
1236 			es->wav_shift++;  in snd_es1968_pcm_prepare()
1238 	es->bob_freq = snd_es1968_calc_bob_rate(chip, es, runtime);  in snd_es1968_pcm_prepare()
1240 	switch (es->mode) {  in snd_es1968_pcm_prepare()
1242 		snd_es1968_playback_setup(chip, es, runtime);  in snd_es1968_pcm_prepare()
1245 		snd_es1968_capture_setup(chip, es, runtime);  in snd_es1968_pcm_prepare()
1255 	struct esschan *es = substream->runtime->private_data;  in snd_es1968_pcm_trigger()  local
1261 		if (es->running)  in snd_es1968_pcm_trigger()
1263 		snd_es1968_bob_inc(chip, es->bob_freq);  in snd_es1968_pcm_trigger()
1264 		es->count = 0;  in snd_es1968_pcm_trigger()
1265 		es->hwptr = 0;  in snd_es1968_pcm_trigger()
1266 		snd_es1968_pcm_start(chip, es);  in snd_es1968_pcm_trigger()
1267 		es->running = 1;  in snd_es1968_pcm_trigger()
1271 		if (! es->running)  in snd_es1968_pcm_trigger()
1273 		snd_es1968_pcm_stop(chip, es);  in snd_es1968_pcm_trigger()
1274 		es->running = 0;  in snd_es1968_pcm_trigger()
1285 	struct esschan *es = substream->runtime->private_data;  in snd_es1968_pcm_pointer()  local
1288 	ptr = snd_es1968_get_dma_ptr(chip, es) << es->wav_shift;  in snd_es1968_pcm_pointer()
1290 	return bytes_to_frames(substream->runtime, ptr % es->dma_size);  in snd_es1968_pcm_pointer()
1553 	struct esschan *es;  in snd_es1968_playback_open()  local
1561 	es = kzalloc(sizeof(*es), GFP_KERNEL);  in snd_es1968_playback_open()
1562 	if (!es) {  in snd_es1968_playback_open()
1567 	es->apu[0] = apu1;  in snd_es1968_playback_open()
1568 	es->apu[1] = apu1 + 1;  in snd_es1968_playback_open()
1569 	es->apu_mode[0] = 0;  in snd_es1968_playback_open()
1570 	es->apu_mode[1] = 0;  in snd_es1968_playback_open()
1571 	es->running = 0;  in snd_es1968_playback_open()
1572 	es->substream = substream;  in snd_es1968_playback_open()
1573 	es->mode = ESM_MODE_PLAY;  in snd_es1968_playback_open()
1575 	runtime->private_data = es;  in snd_es1968_playback_open()
1581 	list_add(&es->list, &chip->substream_list);  in snd_es1968_playback_open()
1591 	struct esschan *es;  in snd_es1968_capture_open()  local
1603 	es = kzalloc(sizeof(*es), GFP_KERNEL);  in snd_es1968_capture_open()
1604 	if (!es) {  in snd_es1968_capture_open()
1610 	es->apu[0] = apu1;  in snd_es1968_capture_open()
1611 	es->apu[1] = apu1 + 1;  in snd_es1968_capture_open()
1612 	es->apu[2] = apu2;  in snd_es1968_capture_open()
1613 	es->apu[3] = apu2 + 1;  in snd_es1968_capture_open()
1614 	es->apu_mode[0] = 0;  in snd_es1968_capture_open()
1615 	es->apu_mode[1] = 0;  in snd_es1968_capture_open()
1616 	es->apu_mode[2] = 0;  in snd_es1968_capture_open()
1617 	es->apu_mode[3] = 0;  in snd_es1968_capture_open()
1618 	es->running = 0;  in snd_es1968_capture_open()
1619 	es->substream = substream;  in snd_es1968_capture_open()
1620 	es->mode = ESM_MODE_CAPTURE;  in snd_es1968_capture_open()
1623 	if ((es->mixbuf = snd_es1968_new_memory(chip, ESM_MIXBUF_SIZE)) == NULL) {  in snd_es1968_capture_open()
1626 		kfree(es);  in snd_es1968_capture_open()
1629 	memset(es->mixbuf->buf.area, 0, ESM_MIXBUF_SIZE);  in snd_es1968_capture_open()
1631 	runtime->private_data = es;  in snd_es1968_capture_open()
1638 	list_add(&es->list, &chip->substream_list);  in snd_es1968_capture_open()
1647 	struct esschan *es;  in snd_es1968_playback_close()  local
1651 	es = substream->runtime->private_data;  in snd_es1968_playback_close()
1653 	list_del(&es->list);  in snd_es1968_playback_close()
1655 	snd_es1968_free_apu_pair(chip, es->apu[0]);  in snd_es1968_playback_close()
1656 	kfree(es);  in snd_es1968_playback_close()
1664 	struct esschan *es;  in snd_es1968_capture_close()  local
1668 	es = substream->runtime->private_data;  in snd_es1968_capture_close()
1670 	list_del(&es->list);  in snd_es1968_capture_close()
1672 	snd_es1968_free_memory(chip, es->mixbuf);  in snd_es1968_capture_close()
1673 	snd_es1968_free_apu_pair(chip, es->apu[0]);  in snd_es1968_capture_close()
1674 	snd_es1968_free_apu_pair(chip, es->apu[2]);  in snd_es1968_capture_close()
1675 	kfree(es);  in snd_es1968_capture_close()
1847 static void snd_es1968_suppress_jitter(struct es1968 *chip, struct esschan *es)  in snd_es1968_suppress_jitter()  argument
1864 static void snd_es1968_update_pcm(struct es1968 *chip, struct esschan *es)  in snd_es1968_update_pcm()  argument
1868 	struct snd_pcm_substream *subs = es->substream;  in snd_es1968_update_pcm()
1870 	if (subs == NULL || !es->running)  in snd_es1968_update_pcm()
1873 	hwptr = snd_es1968_get_dma_ptr(chip, es) << es->wav_shift;  in snd_es1968_update_pcm()
1874 	hwptr %= es->dma_size;  in snd_es1968_update_pcm()
1876 	diff = (es->dma_size + hwptr - es->hwptr) % es->dma_size;  in snd_es1968_update_pcm()
1878 	es->hwptr = hwptr;  in snd_es1968_update_pcm()
1879 	es->count += diff;  in snd_es1968_update_pcm()
1881 	if (es->count > es->frag_size) {  in snd_es1968_update_pcm()
1885 		es->count %= es->frag_size;  in snd_es1968_update_pcm()
1994 		struct esschan *es;  in snd_es1968_interrupt()  local
1996 		list_for_each_entry(es, &chip->substream_list, list) {  in snd_es1968_interrupt()
1997 			if (es->running) {  in snd_es1968_interrupt()
1998 				snd_es1968_update_pcm(chip, es);  in snd_es1968_interrupt()
1999 				if (es->fmt & ESS_FMT_STEREO)  in snd_es1968_interrupt()
2000 					snd_es1968_suppress_jitter(chip, es);  in snd_es1968_interrupt()
2405 	struct esschan *es;  in es1968_resume()  local
2423 	list_for_each_entry(es, &chip->substream_list, list) {  in es1968_resume()
2424 		switch (es->mode) {  in es1968_resume()
2426 			snd_es1968_playback_setup(chip, es, es->substream->runtime);  in es1968_resume()
2429 			snd_es1968_capture_setup(chip, es, es->substream->runtime);  in es1968_resume()