Merging upstream version 6.8.11.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

2 files changed, 78 insertions, 64 deletions

diff --git a/sound/pci/emu10k1/emu10k1.c b/sound/pci/emu10k1/emu10k1.c
index fe72e7d772..dadeda7758 100644
--- a/sound/pci/emu10k1/emu10k1.c
+++ b/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);
 
diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index de5c41e578..ade90c7ecd 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -732,69 +732,67 @@ static int snd_emu1010_load_firmware(struct snd_emu10k1 *emu, int dock,
 	return snd_emu1010_load_firmware_entry(emu, *fw);
 }
 
-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");
+	/* Return to Audio Dock programming mode */
+	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;
-#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 +803,40 @@ 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_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);
+}
+
+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);
 }
 
 /*
@@ -889,7 +906,7 @@ 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 */
@@ -960,8 +977,7 @@ static void snd_emu10k1_free(struct snd_card *card)
 		/* Disable 48Volt power to Audio Dock */
 		snd_emu1010_fpga_write(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);
 	release_firmware(emu->firmware);
 	release_firmware(emu->dock_fw);
 	snd_util_memhdr_free(emu->memhdr);
@@ -1540,8 +1556,7 @@ 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);
 	/* read revision & serial */
 	emu->revision = pci->revision;
 	pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &emu->serial);