pcmcia/pdaudiocf/pdaudiocf_pcm.c

19 static int pdacf_pcm_clear_sram(struct snd_pdacf *chip)
23 	while (inw(chip->port + PDAUDIOCF_REG_RDP) != inw(chip->port + PDAUDIOCF_REG_WDP)) {
26 		inw(chip->port + PDAUDIOCF_REG_MD);
36 	struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
41 	if (chip->chip_status & PDAUDIOCF_STAT_IS_STALE)
46 		chip->pcm_hwptr = 0;
47 		chip->pcm_tdone = 0;
54 		rate = snd_ak4117_check_rate_and_errors(chip->ak4117, AK4117_CHECK_NO_STAT|AK4117_CHECK_NO_RATE);
67 	mutex_lock(&chip->reg_lock);
68 	chip->pcm_running += inc;
69 	tmp = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
70 	if (chip->pcm_running) {
71 		if ((chip->ak4117->rcs0 & AK4117_UNLCK) || runtime->rate != rate) {
72 			chip->pcm_running -= inc;
79 	pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, tmp);
81 	mutex_unlock(&chip->reg_lock);
82 	snd_ak4117_check_rate_and_errors(chip->ak4117, AK4117_CHECK_NO_RATE);
91 	struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
95 	if (chip->chip_status & PDAUDIOCF_STAT_IS_STALE)
98 	chip->pcm_channels = runtime->channels;
100 	chip->pcm_little = snd_pcm_format_little_endian(runtime->format) > 0;
102 	chip->pcm_swab = snd_pcm_format_big_endian(runtime->format) > 0;
104 	chip->pcm_swab = chip->pcm_little;
108 		chip->pcm_xor = 0x80008000;
110 	if (pdacf_pcm_clear_sram(chip) < 0)
113 	val = nval = pdacf_reg_read(chip, PDAUDIOCF_REG_SCR);
124 	chip->pcm_sample = 4;
129 		chip->pcm_frame = 2;
130 		chip->pcm_sample = 2;
134 		chip->pcm_sample = 3;
138 		chip->pcm_frame = 3;
139 		chip->pcm_xor &= 0xffff0000;
144 		snd_ak4117_reg_write(chip->ak4117, AK4117_REG_IO, AK4117_DIF2|AK4117_DIF1|AK4117_DIF0, aval);
145 		pdacf_reg_write(chip, PDAUDIOCF_REG_SCR, nval);
148 	val = pdacf_reg_read(chip,  PDAUDIOCF_REG_IER);
151 	pdacf_reg_write(chip, PDAUDIOCF_REG_IER, val);
153 	chip->pcm_size = runtime->buffer_size;
154 	chip->pcm_period = runtime->period_size;
155 	chip->pcm_area = runtime->dma_area;
199 	struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
201 	if (chip->chip_status & PDAUDIOCF_STAT_IS_STALE)
205 	runtime->private_data = chip;
206 	chip->pcm_substream = subs;
216 	struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
218 	if (!chip)
220 	pdacf_reinit(chip, 0);
221 	chip->pcm_substream = NULL;
231 	struct snd_pdacf *chip = snd_pcm_substream_chip(subs);
232 	return chip->pcm_hwptr;
250 int snd_pdacf_pcm_new(struct snd_pdacf *chip)
255 	err = snd_pcm_new(chip->card, "PDAudioCF", 0, 0, 1, &pcm);
263 	pcm->private_data = chip;
266 	strcpy(pcm->name, chip->card->shortname);
267 	chip->pcm = pcm;
269 	err = snd_ak4117_build(chip->ak4117, pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream);