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Diffstat (limited to 'sound/pci/emu10k1/emu10k1_main.c')
-rw-r--r--sound/pci/emu10k1/emu10k1_main.c139
1 files changed, 77 insertions, 62 deletions
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);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 02:40:09 +0000