pci/cx88/cx88-tvaudio.c

92 static void set_audio_registers(struct cx88_core *core, const struct rlist *l)
113 static void set_audio_start(struct cx88_core *core, u32 mode)
124 static void set_audio_finish(struct cx88_core *core, u32 ctl)
129 	cx88_stop_audio_dma(core);
131 	cx88_start_audio_dma(core);
133 	if (core->board.mpeg & CX88_MPEG_BLACKBIRD) {
145 	if ((always_analog) || (!(core->board.mpeg & CX88_MPEG_BLACKBIRD))) {
157 	core->last_change = jiffies;
162 static void set_audio_standard_BTSC(struct cx88_core *core, unsigned int sap,
261 		set_audio_start(core, SEL_SAP);
262 		set_audio_registers(core, btsc_sap);
263 		set_audio_finish(core, mode);
266 		set_audio_start(core, SEL_BTSC);
267 		set_audio_registers(core, btsc);
268 		set_audio_finish(core, mode);
272 static void set_audio_standard_NICAM(struct cx88_core *core, u32 mode)
343 	set_audio_start(core, SEL_NICAM);
344 	switch (core->tvaudio) {
347 		set_audio_registers(core, nicam_l);
351 		set_audio_registers(core, nicam_bgdki_common);
352 		set_audio_registers(core, nicam_i);
364 		set_audio_registers(core, nicam_bgdki_common);
365 		set_audio_registers(core, nicam_default);
370 	set_audio_finish(core, mode);
373 static void set_audio_standard_A2(struct cx88_core *core, u32 mode)
600 	set_audio_start(core, SEL_A2);
601 	switch (core->tvaudio) {
604 		set_audio_registers(core, a2_bgdk_common);
605 		set_audio_registers(core, a2_bg);
606 		set_audio_registers(core, a2_deemph50);
610 		set_audio_registers(core, a2_bgdk_common);
611 		set_audio_registers(core, a2_dk);
612 		set_audio_registers(core, a2_deemph50);
616 		set_audio_registers(core, a1_i);
617 		set_audio_registers(core, a2_deemph50);
621 		set_audio_registers(core, am_l);
635 	set_audio_finish(core, mode);
638 static void set_audio_standard_EIAJ(struct cx88_core *core)
647 	set_audio_start(core, SEL_EIAJ);
648 	set_audio_registers(core, eiaj);
649 	set_audio_finish(core, EN_EIAJ_AUTO_STEREO);
652 static void set_audio_standard_FM(struct cx88_core *core,
702 	set_audio_start(core, SEL_FMRADIO);
707 		set_audio_registers(core, fm_no_deemph);
711 		set_audio_registers(core, fm_deemph_50);
715 		set_audio_registers(core, fm_deemph_75);
719 	set_audio_finish(core, EN_FMRADIO_AUTO_STEREO);
724 static int cx88_detect_nicam(struct cx88_core *core)
747 void cx88_set_tvaudio(struct cx88_core *core)
749 	switch (core->tvaudio) {
751 		set_audio_standard_BTSC(core, 0, EN_BTSC_AUTO_STEREO);
759 		set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
765 		set_audio_standard_NICAM(core, EN_NICAM_AUTO_STEREO);
766 		if (cx88_detect_nicam(core) == 0) {
768 			set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
769 			core->audiomode_current = V4L2_TUNER_MODE_MONO;
770 			core->use_nicam = 0;
772 			core->use_nicam = 1;
776 		set_audio_standard_EIAJ(core);
779 		set_audio_standard_FM(core, radio_deemphasis);
782 		set_audio_start(core, 0x01);
788 		cx_write(AUD_I2SINPUTCNTL, core->board.i2sinputcntl);
791 		set_audio_finish(core, EN_I2SIN_ENABLE);
795 		pr_info("unknown tv audio mode [%d]\n", core->tvaudio);
801 void cx88_newstation(struct cx88_core *core)
803 	core->audiomode_manual = UNSET;
804 	core->last_change = jiffies;
808 void cx88_get_stereo(struct cx88_core *core, struct v4l2_tuner *t)
820 	if (core->astat != reg)
824 	core->astat = reg;
846 	switch (core->tvaudio) {
852 		if (!core->use_nicam) {
853 			t->rxsubchans = cx88_dsp_detect_stereo_sap(core);
881 void cx88_set_stereo(struct cx88_core *core, u32 mode, int manual)
887 		core->audiomode_manual = mode;
889 		if (core->audiomode_manual != UNSET)
892 	core->audiomode_current = mode;
894 	switch (core->tvaudio) {
898 			set_audio_standard_BTSC(core, 0, EN_BTSC_FORCE_MONO);
901 			set_audio_standard_BTSC(core, 0, EN_BTSC_AUTO_STEREO);
904 			set_audio_standard_BTSC(core, 1, EN_BTSC_FORCE_SAP);
908 			set_audio_standard_BTSC(core, 0, EN_BTSC_FORCE_STEREO);
917 		if (core->use_nicam == 1) {
921 				set_audio_standard_NICAM(core,
925 				set_audio_standard_NICAM(core,
930 				set_audio_standard_NICAM(core,
935 			if ((core->tvaudio == WW_I) ||
936 			    (core->tvaudio == WW_L)) {
938 				set_audio_standard_A2(core, EN_A2_FORCE_MONO1);
989 	struct cx88_core *core = data;
1001 		switch (core->tvaudio) {
1007 			if (core->use_nicam)
1012 			cx88_get_stereo(core, &t);
1014 			if (core->audiomode_manual != UNSET)
1023 			if (mode == core->audiomode_current)
1026 			cx88_set_stereo(core, mode, 0);