Merge tag 'sound-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A small collection of fixes:

   - Revert of FireWire changes that caused a long-time regression

   - Another long-time regression fix for AMD HDMI

   - MIDI2 UMP fixes

   - HD-audio Conexant codec fixes and a quirk"

* tag 'sound-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda: Conditionally use snooping for AMD HDMI
  ALSA: usb-audio: Correct surround channels in UAC1 channel map
  ALSA: seq: ump: Explicitly reset RPN with Null RPN
  ALSA: seq: ump: Transmit RPN/NRPN message at each MSB/LSB data reception
  ALSA: seq: ump: Use the common RPN/bank conversion context
  ALSA: ump: Explicitly reset RPN with Null RPN
  ALSA: ump: Transmit RPN/NRPN message at each MSB/LSB data reception
  Revert "ALSA: firewire-lib: operate for period elapse event in process context"
  Revert "ALSA: firewire-lib: obsolete workqueue for period update"
  ALSA: hda/realtek: Add quirk for Acer Aspire E5-574G
  ALSA: seq: ump: Optimize conversions from SysEx to UMP
  ALSA: hda/conexant: Mute speakers at suspend / shutdown
  ALSA: hda/generic: Add a helper to mute speakers at suspend/shutdown
  ALSA: hda: conexant: Fix headset auto detect fail in the polling mode

Author: torvalds

include/sound/ump_convert.h

@@ -13,6 +13,7 @@ struct ump_cvt_to_ump_bank {
 	unsigned char cc_nrpn_msb, cc_nrpn_lsb;
 	unsigned char cc_data_msb, cc_data_lsb;
 	unsigned char cc_bank_msb, cc_bank_lsb;
+	bool cc_data_msb_set, cc_data_lsb_set;
 };
 
 /* context for converting from MIDI1 byte stream to UMP packet */

sound/core/seq/seq_ports.h

@@ -7,6 +7,7 @@
 #define __SND_SEQ_PORTS_H
 
 #include <sound/seq_kernel.h>
+#include <sound/ump_convert.h>
 #include "seq_lock.h"
 
 /* list of 'exported' ports */
@@ -42,17 +43,6 @@ struct snd_seq_port_subs_info {
 	int (*close)(void *private_data, struct snd_seq_port_subscribe *info);
 };
 
-/* context for converting from legacy control event to UMP packet */
-struct snd_seq_ump_midi2_bank {
-	bool rpn_set;
-	bool nrpn_set;
-	bool bank_set;
-	unsigned char cc_rpn_msb, cc_rpn_lsb;
-	unsigned char cc_nrpn_msb, cc_nrpn_lsb;
-	unsigned char cc_data_msb, cc_data_lsb;
-	unsigned char cc_bank_msb, cc_bank_lsb;
-};
-
 struct snd_seq_client_port {
 
 	struct snd_seq_addr addr;	/* client/port number */
@@ -88,7 +78,7 @@ struct snd_seq_client_port {
 	unsigned char ump_group;
 
 #if IS_ENABLED(CONFIG_SND_SEQ_UMP)
-	struct snd_seq_ump_midi2_bank midi2_bank[16]; /* per channel */
+	struct ump_cvt_to_ump_bank midi2_bank[16]; /* per channel */
 #endif
 };
 

sound/core/seq/seq_ump_convert.c

@@ -368,7 +368,7 @@ static int cvt_ump_midi1_to_midi2(struct snd_seq_client *dest,
 	struct snd_seq_ump_event ev_cvt;
 	const union snd_ump_midi1_msg *midi1 = (const union snd_ump_midi1_msg *)event->ump;
 	union snd_ump_midi2_msg *midi2 = (union snd_ump_midi2_msg *)ev_cvt.ump;
-	struct snd_seq_ump_midi2_bank *cc;
+	struct ump_cvt_to_ump_bank *cc;
 
 	ev_cvt = *event;
 	memset(&ev_cvt.ump, 0, sizeof(ev_cvt.ump));
@@ -789,28 +789,45 @@ static int paf_ev_to_ump_midi2(const struct snd_seq_event *event,
 	return 1;
 }
 
+static void reset_rpn(struct ump_cvt_to_ump_bank *cc)
+{
+	cc->rpn_set = 0;
+	cc->nrpn_set = 0;
+	cc->cc_rpn_msb = cc->cc_rpn_lsb = 0;
+	cc->cc_data_msb = cc->cc_data_lsb = 0;
+	cc->cc_data_msb_set = cc->cc_data_lsb_set = 0;
+}
+
 /* set up the MIDI2 RPN/NRPN packet data from the parsed info */
-static void fill_rpn(struct snd_seq_ump_midi2_bank *cc,
-		     union snd_ump_midi2_msg *data,
-		     unsigned char channel)
+static int fill_rpn(struct ump_cvt_to_ump_bank *cc,
+		    union snd_ump_midi2_msg *data,
+		    unsigned char channel,
+		    bool flush)
 {
+	if (!(cc->cc_data_lsb_set || cc->cc_data_msb_set))
+		return 0; // skip
+	/* when not flushing, wait for complete data set */
+	if (!flush && (!cc->cc_data_lsb_set || !cc->cc_data_msb_set))
+		return 0; // skip
+
 	if (cc->rpn_set) {
 		data->rpn.status = UMP_MSG_STATUS_RPN;
 		data->rpn.bank = cc->cc_rpn_msb;
 		data->rpn.index = cc->cc_rpn_lsb;
-		cc->rpn_set = 0;
-		cc->cc_rpn_msb = cc->cc_rpn_lsb = 0;
-	} else {
+	} else if (cc->nrpn_set) {
 		data->rpn.status = UMP_MSG_STATUS_NRPN;
 		data->rpn.bank = cc->cc_nrpn_msb;
 		data->rpn.index = cc->cc_nrpn_lsb;
-		cc->nrpn_set = 0;
-		cc->cc_nrpn_msb = cc->cc_nrpn_lsb = 0;
+	} else {
+		return 0; // skip
 	}
+
 	data->rpn.data = upscale_14_to_32bit((cc->cc_data_msb << 7) |
 					     cc->cc_data_lsb);
 	data->rpn.channel = channel;
-	cc->cc_data_msb = cc->cc_data_lsb = 0;
+
+	reset_rpn(cc);
+	return 1;
 }
 
 /* convert CC event to MIDI 2.0 UMP */
@@ -822,29 +839,39 @@ static int cc_ev_to_ump_midi2(const struct snd_seq_event *event,
 	unsigned char channel = event->data.control.channel & 0x0f;
 	unsigned char index = event->data.control.param & 0x7f;
 	unsigned char val = event->data.control.value & 0x7f;
-	struct snd_seq_ump_midi2_bank *cc = &dest_port->midi2_bank[channel];
+	struct ump_cvt_to_ump_bank *cc = &dest_port->midi2_bank[channel];
+	int ret;
 
 	/* process special CC's (bank/rpn/nrpn) */
 	switch (index) {
 	case UMP_CC_RPN_MSB:
+		ret = fill_rpn(cc, data, channel, true);
 		cc->rpn_set = 1;
 		cc->cc_rpn_msb = val;
-		return 0; // skip
+		if (cc->cc_rpn_msb == 0x7f && cc->cc_rpn_lsb == 0x7f)
+			reset_rpn(cc);
+		return ret;
 	case UMP_CC_RPN_LSB:
+		ret = fill_rpn(cc, data, channel, true);
 		cc->rpn_set = 1;
 		cc->cc_rpn_lsb = val;
-		return 0; // skip
+		if (cc->cc_rpn_msb == 0x7f && cc->cc_rpn_lsb == 0x7f)
+			reset_rpn(cc);
+		return ret;
 	case UMP_CC_NRPN_MSB:
+		ret = fill_rpn(cc, data, channel, true);
 		cc->nrpn_set = 1;
 		cc->cc_nrpn_msb = val;
-		return 0; // skip
+		return ret;
 	case UMP_CC_NRPN_LSB:
+		ret = fill_rpn(cc, data, channel, true);
 		cc->nrpn_set = 1;
 		cc->cc_nrpn_lsb = val;
-		return 0; // skip
+		return ret;
 	case UMP_CC_DATA:
+		cc->cc_data_msb_set = 1;
 		cc->cc_data_msb = val;
-		return 0; // skip
+		return fill_rpn(cc, data, channel, false);
 	case UMP_CC_BANK_SELECT:
 		cc->bank_set = 1;
 		cc->cc_bank_msb = val;
@@ -854,11 +881,9 @@ static int cc_ev_to_ump_midi2(const struct snd_seq_event *event,
 		cc->cc_bank_lsb = val;
 		return 0; // skip
 	case UMP_CC_DATA_LSB:
+		cc->cc_data_lsb_set = 1;
 		cc->cc_data_lsb = val;
-		if (!(cc->rpn_set || cc->nrpn_set))
-			return 0; // skip
-		fill_rpn(cc, data, channel);
-		return 1;
+		return fill_rpn(cc, data, channel, false);
 	}
 
 	data->cc.status = status;
@@ -887,7 +912,7 @@ static int pgm_ev_to_ump_midi2(const struct snd_seq_event *event,
 			       unsigned char status)
 {
 	unsigned char channel = event->data.control.channel & 0x0f;
-	struct snd_seq_ump_midi2_bank *cc = &dest_port->midi2_bank[channel];
+	struct ump_cvt_to_ump_bank *cc = &dest_port->midi2_bank[channel];
 
 	data->pg.status = status;
 	data->pg.channel = channel;
@@ -924,8 +949,9 @@ static int ctrl14_ev_to_ump_midi2(const struct snd_seq_event *event,
 {
 	unsigned char channel = event->data.control.channel & 0x0f;
 	unsigned char index = event->data.control.param & 0x7f;
-	struct snd_seq_ump_midi2_bank *cc = &dest_port->midi2_bank[channel];
+	struct ump_cvt_to_ump_bank *cc = &dest_port->midi2_bank[channel];
 	unsigned char msb, lsb;
+	int ret;
 
 	msb = (event->data.control.value >> 7) & 0x7f;
 	lsb = event->data.control.value & 0x7f;
@@ -939,28 +965,27 @@ static int ctrl14_ev_to_ump_midi2(const struct snd_seq_event *event,
 		cc->cc_bank_lsb = lsb;
 		return 0; // skip
 	case UMP_CC_RPN_MSB:
-		cc->cc_rpn_msb = msb;
-		fallthrough;
 	case UMP_CC_RPN_LSB:
-		cc->rpn_set = 1;
+		ret = fill_rpn(cc, data, channel, true);
+		cc->cc_rpn_msb = msb;
 		cc->cc_rpn_lsb = lsb;
-		return 0; // skip
+		cc->rpn_set = 1;
+		if (cc->cc_rpn_msb == 0x7f && cc->cc_rpn_lsb == 0x7f)
+			reset_rpn(cc);
+		return ret;
 	case UMP_CC_NRPN_MSB:
-		cc->cc_nrpn_msb = msb;
-		fallthrough;
 	case UMP_CC_NRPN_LSB:
+		ret = fill_rpn(cc, data, channel, true);
+		cc->cc_nrpn_msb = msb;
 		cc->nrpn_set = 1;
 		cc->cc_nrpn_lsb = lsb;
-		return 0; // skip
+		return ret;
 	case UMP_CC_DATA:
-		cc->cc_data_msb = msb;
-		fallthrough;
 	case UMP_CC_DATA_LSB:
+		cc->cc_data_msb_set = cc->cc_data_lsb_set = 1;
+		cc->cc_data_msb = msb;
 		cc->cc_data_lsb = lsb;
-		if (!(cc->rpn_set || cc->nrpn_set))
-			return 0; // skip
-		fill_rpn(cc, data, channel);
-		return 1;
+		return fill_rpn(cc, data, channel, false);
 	}
 
 	data->cc.status = UMP_MSG_STATUS_CC;
@@ -1192,44 +1217,53 @@ static int cvt_sysex_to_ump(struct snd_seq_client *dest,
 {
 	struct snd_seq_ump_event ev_cvt;
 	unsigned char status;
-	u8 buf[6], *xbuf;
+	u8 buf[8], *xbuf;
 	int offset = 0;
 	int len, err;
+	bool finished = false;
 
 	if (!snd_seq_ev_is_variable(event))
 		return 0;
 
 	setup_ump_event(&ev_cvt, event);
-	for (;;) {
+	while (!finished) {
 		len = snd_seq_expand_var_event_at(event, sizeof(buf), buf, offset);
 		if (len <= 0)
 			break;
-		if (WARN_ON(len > 6))
+		if (WARN_ON(len > sizeof(buf)))
 			break;
-		offset += len;
+
 		xbuf = buf;
+		status = UMP_SYSEX_STATUS_CONTINUE;
+		/* truncate the sysex start-marker */
 		if (*xbuf == UMP_MIDI1_MSG_SYSEX_START) {
 			status = UMP_SYSEX_STATUS_START;
-			xbuf++;
 			len--;
-			if (len > 0 && xbuf[len - 1] == UMP_MIDI1_MSG_SYSEX_END) {
+			offset++;
+			xbuf++;
+		}
+
+		/* if the last of this packet or the 1st byte of the next packet
+		 * is the end-marker, finish the transfer with this packet
+		 */
+		if (len > 0 && len < 8 &&
+		    xbuf[len - 1] == UMP_MIDI1_MSG_SYSEX_END) {
+			if (status == UMP_SYSEX_STATUS_START)
 				status = UMP_SYSEX_STATUS_SINGLE;
-				len--;
-			}
-		} else {
-			if (xbuf[len - 1] == UMP_MIDI1_MSG_SYSEX_END) {
+			else
 				status = UMP_SYSEX_STATUS_END;
-				len--;
-			} else {
-				status = UMP_SYSEX_STATUS_CONTINUE;
-			}
+			len--;
+			finished = true;
 		}
+
+		len = min(len, 6);
 		fill_sysex7_ump(dest_port, ev_cvt.ump, status, xbuf, len);
 		err = __snd_seq_deliver_single_event(dest, dest_port,
 						     (struct snd_seq_event *)&ev_cvt,
 						     atomic, hop);
 		if (err < 0)
 			return err;
+		offset += len;
 	}
 	return 0;
 }