pci/ac97/ac97_pcm.c

159 static int set_spdif_rate(struct snd_ac97 *ac97, unsigned short rate)
164 	if (! (ac97->ext_id & AC97_EI_SPDIF))
168 	if (ac97->flags & AC97_CS_SPDIF) {
173 			snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
179 		if (ac97->id == AC97_ID_CM9739 && rate != 48000) {
180 			snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
188 			snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
195 	mutex_lock(&ac97->reg_mutex);
196 	old = snd_ac97_read(ac97, reg) & mask;
198 		snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, 0);
199 		snd_ac97_update_bits_nolock(ac97, reg, mask, bits);
201 		sbits = ac97->spdif_status;
217 		ac97->spdif_status = sbits;
219 	snd_ac97_update_bits_nolock(ac97, AC97_EXTENDED_STATUS, AC97_EA_SPDIF, AC97_EA_SPDIF);
220 	mutex_unlock(&ac97->reg_mutex);
226  * @ac97: the ac97 instance
243 int snd_ac97_set_rate(struct snd_ac97 *ac97, int reg, unsigned int rate)
250 		if (!(ac97->flags & AC97_DOUBLE_RATE))
256 	snd_ac97_update_power(ac97, reg, 1);
259 		if ((ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_VRM) == 0)	/* MIC VRA */
265 		if ((ac97->regs[AC97_EXTENDED_STATUS] & AC97_EA_VRA) == 0)	/* VRA */
270 		if (! (ac97->scaps & AC97_SCAP_SURROUND_DAC))
274 		if (! (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC))
279 		return set_spdif_rate(ac97, rate);
285 	tmp = (rate * ac97->bus->clock) / 48000;
288 	if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE)
289 		snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
291 	snd_ac97_update(ac97, reg, tmp & 0xffff);
292 	snd_ac97_read(ac97, reg);
293 	if ((ac97->ext_id & AC97_EI_DRA) && reg == AC97_PCM_FRONT_DAC_RATE) {
297 		snd_ac97_update_bits(ac97, AC97_GENERAL_PURPOSE,
300 		snd_ac97_read(ac97, AC97_GENERAL_PURPOSE);
307 static unsigned short get_pslots(struct snd_ac97 *ac97, unsigned char *rate_table, unsigned short *spdif_slots)
309 	if (!ac97_is_audio(ac97))
311 	if (ac97_is_rev22(ac97) || ac97_can_amap(ac97)) {
313 		if (ac97_is_rev22(ac97)) {
316 			es = ac97->regs[AC97_EXTENDED_ID] &= ~AC97_EI_DACS_SLOT_MASK;
317 			switch (ac97->addr) {
322 			snd_ac97_write_cache(ac97, AC97_EXTENDED_ID, es);
324 		switch (ac97->addr) {
327 			if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
329 			if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
331 			if (ac97->ext_id & AC97_EI_SPDIF) {
332 				if (!(ac97->scaps & AC97_SCAP_SURROUND_DAC))
334 				else if (!(ac97->scaps & AC97_SCAP_CENTER_LFE_DAC))
344 			if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
346 			if (ac97->ext_id & AC97_EI_SPDIF) {
347 				if (!(ac97->scaps & AC97_SCAP_SURROUND_DAC))
356 			if (ac97->ext_id & AC97_EI_SPDIF)
365 		if (ac97->scaps & AC97_SCAP_SURROUND_DAC)
367 		if (ac97->scaps & AC97_SCAP_CENTER_LFE_DAC)
369 		if (ac97->ext_id & AC97_EI_SPDIF) {
370 			if (!(ac97->scaps & AC97_SCAP_SURROUND_DAC))
372 			else if (!(ac97->scaps & AC97_SCAP_CENTER_LFE_DAC))
382 static unsigned short get_cslots(struct snd_ac97 *ac97)
386 	if (!ac97_is_audio(ac97))
421  * @bus: the ac97 bus instance
546  * @pcm: the ac97 pcm instance
615 					"setting ac97 reg 0x%x to rate %d\n",
640  * @pcm: the ac97 pcm instance
715  * @runtime: the runtime of the ac97 front playback pcm