Merge branch 'topic/emu10k1-fix' into for-next

Pull emu10k1 fixes from Oswald Buddenhagen

Signed-off-by: Takashi Iwai <tiwai@suse.de>

Author: tiwai

include/sound/emu10k1.h

@@ -1692,8 +1692,8 @@ struct snd_emu1010 {
 	unsigned int clock_fallback;
 	unsigned int optical_in; /* 0:SPDIF, 1:ADAT */
 	unsigned int optical_out; /* 0:SPDIF, 1:ADAT */
-	struct work_struct firmware_work;
-	struct work_struct clock_work;
+	struct work_struct work;
+	struct mutex lock;
 };
 
 struct snd_emu10k1 {
@@ -1842,12 +1842,16 @@ unsigned int snd_emu10k1_ptr20_read(struct snd_emu10k1 * emu, unsigned int reg,
 void snd_emu10k1_ptr20_write(struct snd_emu10k1 *emu, unsigned int reg, unsigned int chn, unsigned int data);
 int snd_emu10k1_spi_write(struct snd_emu10k1 * emu, unsigned int data);
 int snd_emu10k1_i2c_write(struct snd_emu10k1 *emu, u32 reg, u32 value);
+static inline void snd_emu1010_fpga_lock(struct snd_emu10k1 *emu) { mutex_lock(&emu->emu1010.lock); };
+static inline void snd_emu1010_fpga_unlock(struct snd_emu10k1 *emu) { mutex_unlock(&emu->emu1010.lock); };
+void snd_emu1010_fpga_write_lock(struct snd_emu10k1 *emu, u32 reg, u32 value);
 void snd_emu1010_fpga_write(struct snd_emu10k1 *emu, u32 reg, u32 value);
 void snd_emu1010_fpga_read(struct snd_emu10k1 *emu, u32 reg, u32 *value);
 void snd_emu1010_fpga_link_dst_src_write(struct snd_emu10k1 *emu, u32 dst, u32 src);
 u32 snd_emu1010_fpga_link_dst_src_read(struct snd_emu10k1 *emu, u32 dst);
 int snd_emu1010_get_raw_rate(struct snd_emu10k1 *emu, u8 src);
 void snd_emu1010_update_clock(struct snd_emu10k1 *emu);
+void snd_emu1010_load_firmware_entry(struct snd_emu10k1 *emu, int dock, const struct firmware *fw_entry);
 unsigned int snd_emu10k1_efx_read(struct snd_emu10k1 *emu, unsigned int pc);
 void snd_emu10k1_intr_enable(struct snd_emu10k1 *emu, unsigned int intrenb);
 void snd_emu10k1_intr_disable(struct snd_emu10k1 *emu, unsigned int intrenb);

sound/core/seq/seq_ump_convert.c

@@ -428,7 +428,7 @@ static int cvt_ump_midi2_to_midi1(struct snd_seq_client *dest,
 	midi1->note.group = midi2->note.group;
 	midi1->note.status = midi2->note.status;
 	midi1->note.channel = midi2->note.channel;
-	switch (midi2->note.status << 4) {
+	switch (midi2->note.status) {
 	case UMP_MSG_STATUS_NOTE_ON:
 	case UMP_MSG_STATUS_NOTE_OFF:
 		midi1->note.note = midi2->note.note;

sound/pci/emu10k1/emu10k1.c

@@ -189,8 +189,7 @@ static int snd_emu10k1_suspend(struct device *dev)
 
 	emu->suspend = 1;
 
-	cancel_work_sync(&emu->emu1010.firmware_work);
-	cancel_work_sync(&emu->emu1010.clock_work);
+	cancel_work_sync(&emu->emu1010.work);
 
 	snd_ac97_suspend(emu->ac97);
 

sound/pci/emu10k1/emu10k1_main.c

@@ -652,52 +652,6 @@ static int snd_emu10k1_cardbus_init(struct snd_emu10k1 *emu)
 	return 0;
 }
 
-static int snd_emu1010_load_firmware_entry(struct snd_emu10k1 *emu,
-				     const struct firmware *fw_entry)
-{
-	int n, i;
-	u16 reg;
-	u8 value;
-	__always_unused u16 write_post;
-
-	if (!fw_entry)
-		return -EIO;
-
-	/* The FPGA is a Xilinx Spartan IIE XC2S50E */
-	/* On E-MU 0404b it is a Xilinx Spartan III XC3S50 */
-	/* GPIO7 -> FPGA PGMN
-	 * GPIO6 -> FPGA CCLK
-	 * GPIO5 -> FPGA DIN
-	 * FPGA CONFIG OFF -> FPGA PGMN
-	 */
-	spin_lock_irq(&emu->emu_lock);
-	outw(0x00, emu->port + A_GPIO); /* Set PGMN low for 100uS. */
-	write_post = inw(emu->port + A_GPIO);
-	udelay(100);
-	outw(0x80, emu->port + A_GPIO); /* Leave bit 7 set during netlist setup. */
-	write_post = inw(emu->port + A_GPIO);
-	udelay(100); /* Allow FPGA memory to clean */
-	for (n = 0; n < fw_entry->size; n++) {
-		value = fw_entry->data[n];
-		for (i = 0; i < 8; i++) {
-			reg = 0x80;
-			if (value & 0x1)
-				reg = reg | 0x20;
-			value = value >> 1;
-			outw(reg, emu->port + A_GPIO);
-			write_post = inw(emu->port + A_GPIO);
-			outw(reg | 0x40, emu->port + A_GPIO);
-			write_post = inw(emu->port + A_GPIO);
-		}
-	}
-	/* After programming, set GPIO bit 4 high again. */
-	outw(0x10, emu->port + A_GPIO);
-	write_post = inw(emu->port + A_GPIO);
-	spin_unlock_irq(&emu->emu_lock);
-
-	return 0;
-}
-
 /* firmware file names, per model, init-fw and dock-fw (optional) */
 static const char * const firmware_names[5][2] = {
 	[EMU_MODEL_EMU1010] = {
@@ -729,72 +683,68 @@ static int snd_emu1010_load_firmware(struct snd_emu10k1 *emu, int dock,
 			return err;
 	}
 
-	return snd_emu1010_load_firmware_entry(emu, *fw);
+	snd_emu1010_load_firmware_entry(emu, dock, *fw);
+	return 0;
 }
 
-static void emu1010_firmware_work(struct work_struct *work)
+static void snd_emu1010_load_dock_firmware(struct snd_emu10k1 *emu)
 {
-	struct snd_emu10k1 *emu;
-	u32 tmp, tmp2, reg;
+	u32 tmp, tmp2;
 	int err;
 
-	emu = container_of(work, struct snd_emu10k1,
-			   emu1010.firmware_work);
-	if (emu->card->shutdown)
+	// The docking events clearly arrive prematurely - while the
+	// Dock's FPGA seems to be successfully programmed, the Dock
+	// fails to initialize subsequently if we don't give it some
+	// time to "warm up" here.
+	msleep(200);
+
+	dev_info(emu->card->dev, "emu1010: Loading Audio Dock Firmware\n");
+	err = snd_emu1010_load_firmware(emu, 1, &emu->dock_fw);
+	if (err < 0)
 		return;
-#ifdef CONFIG_PM_SLEEP
-	if (emu->suspend)
+	snd_emu1010_fpga_write(emu, EMU_HANA_FPGA_CONFIG, 0);
+
+	snd_emu1010_fpga_read(emu, EMU_HANA_ID, &tmp);
+	dev_dbg(emu->card->dev, "emu1010: EMU_HANA+DOCK_ID = 0x%x\n", tmp);
+	if ((tmp & 0x1f) != 0x15) {
+		/* FPGA failed to be programmed */
+		dev_err(emu->card->dev,
+			"emu1010: Loading Audio Dock Firmware failed, reg = 0x%x\n",
+			tmp);
 		return;
-#endif
+	}
+	dev_info(emu->card->dev, "emu1010: Audio Dock Firmware loaded\n");
+
+	snd_emu1010_fpga_read(emu, EMU_DOCK_MAJOR_REV, &tmp);
+	snd_emu1010_fpga_read(emu, EMU_DOCK_MINOR_REV, &tmp2);
+	dev_info(emu->card->dev, "Audio Dock ver: %u.%u\n", tmp, tmp2);
+
+	/* Allow DLL to settle, to sync clocking between 1010 and Dock */
+	msleep(10);
+}
+
+static void emu1010_dock_event(struct snd_emu10k1 *emu)
+{
+	u32 reg;
+
 	snd_emu1010_fpga_read(emu, EMU_HANA_OPTION_CARDS, &reg); /* OPTIONS: Which cards are attached to the EMU */
 	if (reg & EMU_HANA_OPTION_DOCK_OFFLINE) {
 		/* Audio Dock attached */
-		/* Return to Audio Dock programming mode */
-		dev_info(emu->card->dev,
-			 "emu1010: Loading Audio Dock Firmware\n");
-		snd_emu1010_fpga_write(emu, EMU_HANA_FPGA_CONFIG,
-				       EMU_HANA_FPGA_CONFIG_AUDIODOCK);
-		err = snd_emu1010_load_firmware(emu, 1, &emu->dock_fw);
-		if (err < 0)
-			return;
-		snd_emu1010_fpga_write(emu, EMU_HANA_FPGA_CONFIG, 0);
-		snd_emu1010_fpga_read(emu, EMU_HANA_ID, &tmp);
-		dev_info(emu->card->dev,
-			 "emu1010: EMU_HANA+DOCK_ID = 0x%x\n", tmp);
-		if ((tmp & 0x1f) != 0x15) {
-			/* FPGA failed to be programmed */
-			dev_info(emu->card->dev,
-				 "emu1010: Loading Audio Dock Firmware file failed, reg = 0x%x\n",
-				 tmp);
-			return;
-		}
-		dev_info(emu->card->dev,
-			 "emu1010: Audio Dock Firmware loaded\n");
-		snd_emu1010_fpga_read(emu, EMU_DOCK_MAJOR_REV, &tmp);
-		snd_emu1010_fpga_read(emu, EMU_DOCK_MINOR_REV, &tmp2);
-		dev_info(emu->card->dev, "Audio Dock ver: %u.%u\n", tmp, tmp2);
-		/* Sync clocking between 1010 and Dock */
-		/* Allow DLL to settle */
-		msleep(10);
+		snd_emu1010_load_dock_firmware(emu);
 		/* Unmute all. Default is muted after a firmware load */
 		snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE);
+	} else if (!(reg & EMU_HANA_OPTION_DOCK_ONLINE)) {
+		/* Audio Dock removed */
+		dev_info(emu->card->dev, "emu1010: Audio Dock detached\n");
+		/* The hardware auto-mutes all, so we unmute again */
+		snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE);
 	}
 }
 
-static void emu1010_clock_work(struct work_struct *work)
+static void emu1010_clock_event(struct snd_emu10k1 *emu)
 {
-	struct snd_emu10k1 *emu;
 	struct snd_ctl_elem_id id;
 
-	emu = container_of(work, struct snd_emu10k1,
-			   emu1010.clock_work);
-	if (emu->card->shutdown)
-		return;
-#ifdef CONFIG_PM_SLEEP
-	if (emu->suspend)
-		return;
-#endif
-
 	spin_lock_irq(&emu->reg_lock);
 	// This is the only thing that can actually happen.
 	emu->emu1010.clock_source = emu->emu1010.clock_fallback;
@@ -805,21 +755,44 @@ static void emu1010_clock_work(struct work_struct *work)
 	snd_ctl_notify(emu->card, SNDRV_CTL_EVENT_MASK_VALUE, &id);
 }
 
-static void emu1010_interrupt(struct snd_emu10k1 *emu)
+static void emu1010_work(struct work_struct *work)
 {
+	struct snd_emu10k1 *emu;
 	u32 sts;
 
+	emu = container_of(work, struct snd_emu10k1, emu1010.work);
+	if (emu->card->shutdown)
+		return;
+#ifdef CONFIG_PM_SLEEP
+	if (emu->suspend)
+		return;
+#endif
+
+	snd_emu1010_fpga_lock(emu);
+
 	snd_emu1010_fpga_read(emu, EMU_HANA_IRQ_STATUS, &sts);
-	if (sts & EMU_HANA_IRQ_DOCK_LOST) {
-		/* Audio Dock removed */
-		dev_info(emu->card->dev, "emu1010: Audio Dock detached\n");
-		/* The hardware auto-mutes all, so we unmute again */
-		snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE);
-	} else if (sts & EMU_HANA_IRQ_DOCK) {
-		schedule_work(&emu->emu1010.firmware_work);
-	}
+
+	// The distinction of the IRQ status bits is unreliable,
+	// so we dispatch later based on option card status.
+	if (sts & (EMU_HANA_IRQ_DOCK | EMU_HANA_IRQ_DOCK_LOST))
+		emu1010_dock_event(emu);
+
 	if (sts & EMU_HANA_IRQ_WCLK_CHANGED)
-		schedule_work(&emu->emu1010.clock_work);
+		emu1010_clock_event(emu);
+
+	snd_emu1010_fpga_unlock(emu);
+}
+
+static void emu1010_interrupt(struct snd_emu10k1 *emu)
+{
+	// We get an interrupt on each GPIO input pin change, but we
+	// care only about the ones triggered by the dedicated pin.
+	u16 sts = inw(emu->port + A_GPIO);
+	u16 bit = emu->card_capabilities->ca0108_chip ? 0x2000 : 0x8000;
+	if (!(sts & bit))
+		return;
+
+	schedule_work(&emu->emu1010.work);
 }
 
 /*
@@ -841,32 +814,13 @@ static int snd_emu10k1_emu1010_init(struct snd_emu10k1 *emu)
 	 * Proper init follows in snd_emu10k1_init(). */
 	outl(HCFG_LOCKSOUNDCACHE | HCFG_LOCKTANKCACHE_MASK, emu->port + HCFG);
 
-	/* Disable 48Volt power to Audio Dock */
-	snd_emu1010_fpga_write(emu, EMU_HANA_DOCK_PWR, 0);
-
-	/* ID, should read & 0x7f = 0x55. (Bit 7 is the IRQ bit) */
-	snd_emu1010_fpga_read(emu, EMU_HANA_ID, &reg);
-	dev_dbg(emu->card->dev, "reg1 = 0x%x\n", reg);
-	if ((reg & 0x3f) == 0x15) {
-		/* FPGA netlist already present so clear it */
-		/* Return to programming mode */
-
-		snd_emu1010_fpga_write(emu, EMU_HANA_FPGA_CONFIG, EMU_HANA_FPGA_CONFIG_HANA);
-	}
-	snd_emu1010_fpga_read(emu, EMU_HANA_ID, &reg);
-	dev_dbg(emu->card->dev, "reg2 = 0x%x\n", reg);
-	if ((reg & 0x3f) == 0x15) {
-		/* FPGA failed to return to programming mode */
-		dev_info(emu->card->dev,
-			 "emu1010: FPGA failed to return to programming mode\n");
-		return -ENODEV;
-	}
-	dev_info(emu->card->dev, "emu1010: EMU_HANA_ID = 0x%x\n", reg);
+	snd_emu1010_fpga_lock(emu);
 
+	dev_info(emu->card->dev, "emu1010: Loading Hana Firmware\n");
 	err = snd_emu1010_load_firmware(emu, 0, &emu->firmware);
 	if (err < 0) {
 		dev_info(emu->card->dev, "emu1010: Loading Firmware failed\n");
-		return err;
+		goto fail;
 	}
 
 	/* ID, should read & 0x7f = 0x55 when FPGA programmed. */
@@ -876,7 +830,8 @@ static int snd_emu10k1_emu1010_init(struct snd_emu10k1 *emu)
 		dev_info(emu->card->dev,
 			 "emu1010: Loading Hana Firmware file failed, reg = 0x%x\n",
 			 reg);
-		return -ENODEV;
+		err = -ENODEV;
+		goto fail;
 	}
 
 	dev_info(emu->card->dev, "emu1010: Hana Firmware loaded\n");
@@ -889,7 +844,7 @@ static int snd_emu10k1_emu1010_init(struct snd_emu10k1 *emu)
 	snd_emu1010_fpga_read(emu, EMU_HANA_OPTION_CARDS, &reg);
 	dev_info(emu->card->dev, "emu1010: Card options = 0x%x\n", reg);
 	if (reg & EMU_HANA_OPTION_DOCK_OFFLINE)
-		schedule_work(&emu->emu1010.firmware_work);
+		snd_emu1010_load_dock_firmware(emu);
 	if (emu->card_capabilities->no_adat) {
 		emu->emu1010.optical_in = 0; /* IN_SPDIF */
 		emu->emu1010.optical_out = 0; /* OUT_SPDIF */
@@ -936,7 +891,9 @@ static int snd_emu10k1_emu1010_init(struct snd_emu10k1 *emu)
 	// so it is safe to simply enable the outputs.
 	snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE);
 
-	return 0;
+fail:
+	snd_emu1010_fpga_unlock(emu);
+	return err;
 }
 /*
  *  Create the EMU10K1 instance
@@ -958,10 +915,10 @@ static void snd_emu10k1_free(struct snd_card *card)
 	}
 	if (emu->card_capabilities->emu_model == EMU_MODEL_EMU1010) {
 		/* Disable 48Volt power to Audio Dock */
-		snd_emu1010_fpga_write(emu, EMU_HANA_DOCK_PWR, 0);
+		snd_emu1010_fpga_write_lock(emu, EMU_HANA_DOCK_PWR, 0);
 	}
-	cancel_work_sync(&emu->emu1010.firmware_work);
-	cancel_work_sync(&emu->emu1010.clock_work);
+	cancel_work_sync(&emu->emu1010.work);
+	mutex_destroy(&emu->emu1010.lock);
 	release_firmware(emu->firmware);
 	release_firmware(emu->dock_fw);
 	snd_util_memhdr_free(emu->memhdr);
@@ -1540,8 +1497,8 @@ int snd_emu10k1_create(struct snd_card *card,
 	emu->irq = -1;
 	emu->synth = NULL;
 	emu->get_synth_voice = NULL;
-	INIT_WORK(&emu->emu1010.firmware_work, emu1010_firmware_work);
-	INIT_WORK(&emu->emu1010.clock_work, emu1010_clock_work);
+	INIT_WORK(&emu->emu1010.work, emu1010_work);
+	mutex_init(&emu->emu1010.lock);
 	/* read revision & serial */
 	emu->revision = pci->revision;
 	pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &emu->serial);