ALSA: ctxfi: Add support for Onkyo SE-300PCIE (OK0010)

Add support for the Onkyo SE-300PCIE, a Creative X-Fi CA20K2-based
sound card with a custom hardware implementation that differs
significantly from other CA20K2-based variants.

Changes:
 - PCI quirk entry for OK0010
 - Port 0x3 is utilized for dedicated RCA output (configured as I2S)
 - Modified GPIO pin mappings and states
 - 4-channel simultaneous ADC input support for line and microphone
   capture without input switching (similar to SB1270)
 - Simplified ADC initialization (no manual setup required)

Signed-off-by: Harin Lee <me@harin.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20251124180501.2760421-7-me@harin.net

Author: harinworks

sound/pci/ctxfi/ctatc.c

@@ -63,6 +63,7 @@ static const struct snd_pci_quirk subsys_20k2_list[] = {
 	SND_PCI_QUIRK_MASK(PCI_VENDOR_ID_CREATIVE, 0xf000,
 			   PCI_SUBDEVICE_ID_CREATIVE_HENDRIX, "HENDRIX",
 			   CTHENDRIX),
+	SND_PCI_QUIRK(0x160b, 0x0101, "OK0010", CTOK0010),
 	{ } /* terminator */
 };
 
@@ -78,6 +79,7 @@ static const char *ct_subsys_name[NUM_CTCARDS] = {
 	[CTHENDRIX]	= "Hendrix",
 	[CTSB0880]	= "SB0880",
 	[CTSB1270]      = "SB1270",
+	[CTOK0010]    = "OK0010",
 	[CT20K2_UNKNOWN] = "Unknown",
 };
 
@@ -1535,8 +1537,10 @@ static void atc_connect_resources(struct ct_atc *atc)
 		dao->ops->set_right_input(dao, rscs[1]);
 	}
 
-	if (cap.dedicated_rca)
+	if (cap.dedicated_rca) {
+		/* SE-300PCIE has a dedicated DAC for the RCA. */
 		atc_dedicated_rca_select(atc);
+	}
 
 	dai = container_of(atc->daios[LINEIM], struct dai, daio);
 	atc_connect_dai(atc->rsc_mgrs[SRC], dai,
@@ -1549,6 +1553,7 @@ static void atc_connect_resources(struct ct_atc *atc)
 
 	if (cap.dedicated_mic) {
 		/* Titanium HD has a dedicated ADC for the Mic. */
+		/* SE-300PCIE has a 4-channel ADC. */
 		dai = container_of(atc->daios[MIC], struct dai, daio);
 		atc_connect_dai(atc->rsc_mgrs[SRC], dai,
 			(struct src **)&atc->srcs[4],

sound/pci/ctxfi/ctdaio.h

@@ -31,7 +31,7 @@ enum DAIOTYP {
 	LINEIM,
 	SPDIFIO,	/* S/PDIF In (Flexijack/Optical) on the card */
 	MIC,		/* Dedicated mic on Titanium HD */
-	RCA,
+	RCA,		/* Dedicated RCA on SE-300PCIE */
 	SPDIFI1,	/* S/PDIF In on internal Drive Bay */
 	NUM_DAIOTYP
 };

sound/pci/ctxfi/cthardware.h

@@ -38,6 +38,7 @@ enum CTCARDS {
 	CTHENDRIX,
 	CTSB0880,
 	CTSB1270,
+	CTOK0010,
 	CT20K2_UNKNOWN,
 	NUM_CTCARDS		/* This should always be the last */
 };

sound/pci/ctxfi/cthw20k2.c

@@ -910,7 +910,7 @@ static int dao_commit_write(struct hw *hw, unsigned int idx, void *blk)
 	struct dao_ctrl_blk *ctl = blk;
 
 	if (ctl->dirty.bf.atxcsl) {
-		if (idx < 4) {
+		if ((idx < 4) && ((hw->model != CTOK0010) || (idx < 3))) {
 			/* S/PDIF SPOSx */
 			hw_write_20kx(hw, AUDIO_IO_TX_CSTAT_L+0x40*idx,
 							ctl->atxcsl);
@@ -985,11 +985,12 @@ static int daio_mgr_dsb_dao(void *blk, unsigned int idx)
 	return 0;
 }
 
-static int daio_mgr_dao_init(struct hw *hw __maybe_unused, void *blk, unsigned int idx, unsigned int conf)
+static int daio_mgr_dao_init(struct hw *hw, void *blk, unsigned int idx, unsigned int conf)
 {
 	struct daio_mgr_ctrl_blk *ctl = blk;
 
-	if (idx < 4) {
+	/* Port 3 is dedicated to RCA on SE-300PCIE */
+	if ((idx < 4) && ((hw->model != CTOK0010) || (idx < 3))) {
 		/* S/PDIF output */
 		switch ((conf & 0xf)) {
 		case 1:
@@ -1176,14 +1177,19 @@ static int hw_daio_init(struct hw *hw, const struct daio_conf *info)
 		hw_write_20kx(hw, AUDIO_IO_MCLK, 0x21011111);
 		hw_write_20kx(hw, AUDIO_IO_TX_BLRCLK, 0x21212121);
 		hw_write_20kx(hw, AUDIO_IO_RX_BLRCLK, 0);
+	} else if ((4 == info->msr) && (hw->model == CTOK0010)) {
+		hw_write_20kx(hw, AUDIO_IO_MCLK, 0x21212121);
+		hw_write_20kx(hw, AUDIO_IO_TX_BLRCLK, 0x21212121);
+		hw_write_20kx(hw, AUDIO_IO_RX_BLRCLK, 0);
 	} else {
 		dev_alert(hw->card->dev,
 			  "ERROR!!! Invalid sampling rate!!!\n");
 		return -EINVAL;
 	}
 
 	for (i = 0; i < 8; i++) {
-		if (i <= 3) {
+		/* Port 3 is configured as I2S on SE-300PCIE */
+		if ((i < 4) && ((hw->model != CTOK0010) || (i < 3))) {
 			/* This comment looks wrong since loop is over 4  */
 			/* channels and emu20k2 supports 4 spdif IOs.     */
 			/* 1st 3 channels are SPDIFs (SB0960) */
@@ -1637,6 +1643,13 @@ static int hw_dac_init(struct hw *hw, const struct dac_conf *info)
 		hw_write_20kx(hw, GPIO_DATA, data);
 		hw_dac_start(hw);
 		return 0;
+	} else if (hw->model == CTOK0010) {
+		hw_dac_stop(hw);
+		data = hw_read_20kx(hw, GPIO_DATA);
+		data |= 0x1000;
+		hw_write_20kx(hw, GPIO_DATA, data);
+		hw_dac_start(hw);
+		return 0;
 	}
 
 	/* Set DAC reset bit as output */
@@ -1756,9 +1769,11 @@ static int hw_dac_init(struct hw *hw, const struct dac_conf *info)
 static int hw_is_adc_input_selected(struct hw *hw, enum ADCSRC type)
 {
 	u32 data;
-	if (hw->model == CTSB1270) {
+	if ((hw->model == CTSB1270) || (hw->model == CTOK0010)) {
 		/* Titanium HD has two ADC chips, one for line in and one */
-		/* for MIC. We don't need to switch the ADC input. */
+		/* for MIC. Also, SE-300PCIE has a single ADC chip that */
+		/* simultaneously supports 4-channel input. We don't need */
+		/* to switch the ADC input. */
 		return 1;
 	}
 	data = hw_read_20kx(hw, GPIO_DATA);
@@ -1846,7 +1861,7 @@ static void hw_adc_start(struct hw *hw)
 	msleep(50);
 }
 
-static void __maybe_unused hw_adc_reset(struct hw *hw)
+static void hw_adc_reset(struct hw *hw)
 {
 	hw_adc_stop(hw);
 	hw_adc_start(hw);
@@ -1862,6 +1877,12 @@ static int hw_adc_init(struct hw *hw, const struct adc_conf *info)
 	data |= (0x1 << 15);
 	hw_write_20kx(hw, GPIO_CTRL, data);
 
+	if (hw->model == CTOK0010) {
+		/* Manual ADC setup for SE-300PCIE is not needed. */
+		hw_adc_reset(hw);
+		return 0;
+	}
+
 	/* Initialize I2C */
 	err = hw20k2_i2c_init(hw, 0x1A, 1, 1);
 	if (err < 0) {
@@ -1929,8 +1950,8 @@ static struct capabilities hw_capabilities(struct hw *hw)
 	struct capabilities cap;
 
 	cap.digit_io_switch = 0;
-	cap.dedicated_mic = hw->model == CTSB1270;
-	cap.dedicated_rca = 0;
+	cap.dedicated_mic = (hw->model == CTSB1270) || (hw->model == CTOK0010);
+	cap.dedicated_rca = hw->model == CTOK0010;
 	cap.output_switch = hw->model == CTSB1270;
 	cap.mic_source_switch = hw->model == CTSB1270;
 
@@ -2167,15 +2188,17 @@ static int hw_card_init(struct hw *hw, struct card_conf *info)
 	/* Reset all SRC pending interrupts */
 	hw_write_20kx(hw, SRC_IP, 0);
 
-	if (hw->model != CTSB1270) {
+	if (hw->model == CTSB1270) {
+		hw_write_20kx(hw, GPIO_CTRL, 0x9E5F);
+	} else if (hw->model == CTOK0010) {
+		hw_write_20kx(hw, GPIO_CTRL, 0x9902);
+	} else {
 		/* TODO: detect the card ID and configure GPIO accordingly. */
 		/* Configures GPIO (0xD802 0x98028) */
 		/*hw_write_20kx(hw, GPIO_CTRL, 0x7F07);*/
 		/* Configures GPIO (SB0880) */
 		/*hw_write_20kx(hw, GPIO_CTRL, 0xFF07);*/
 		hw_write_20kx(hw, GPIO_CTRL, 0xD802);
-	} else {
-		hw_write_20kx(hw, GPIO_CTRL, 0x9E5F);
 	}
 	/* Enable audio ring */
 	hw_write_20kx(hw, MIXER_AR_ENABLE, 0x01);