diff options
author | Oswald Buddenhagen <oswald.buddenhagen@gmx.de> | 2023-07-10 09:59:55 +0300 |
---|---|---|
committer | Takashi Iwai <tiwai@suse.de> | 2023-07-10 17:56:59 +0300 |
commit | fbb64eedf5a3a98071ee75808cfc1367d1e75783 (patch) | |
tree | ce5b66828d053708c24daf9e13a4de80cc434a99 /sound/pci/emu10k1 | |
parent | 7d43f51e4046c49230dea0d4f991c4cd1759327f (diff) | |
download | linux-fbb64eedf5a3a98071ee75808cfc1367d1e75783.tar.xz |
ALSA: emu10k1: make E-MU dock monitoring interrupt-driven
... instead of using a one-second polling timer.
Signed-off-by: Oswald Buddenhagen <oswald.buddenhagen@gmx.de>
Link: https://lore.kernel.org/r/20230710065956.1246364-1-oswald.buddenhagen@gmx.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/emu10k1')
-rw-r--r-- | sound/pci/emu10k1/emu10k1.c | 8 | ||||
-rw-r--r-- | sound/pci/emu10k1/emu10k1_main.c | 51 | ||||
-rw-r--r-- | sound/pci/emu10k1/io.c | 2 | ||||
-rw-r--r-- | sound/pci/emu10k1/irq.c | 7 |
4 files changed, 38 insertions, 30 deletions
diff --git a/sound/pci/emu10k1/emu10k1.c b/sound/pci/emu10k1/emu10k1.c index 23adace1b969..1a13c086e86c 100644 --- a/sound/pci/emu10k1/emu10k1.c +++ b/sound/pci/emu10k1/emu10k1.c @@ -176,9 +176,6 @@ static int snd_card_emu10k1_probe(struct pci_dev *pci, if (err < 0) return err; - if (emu->card_capabilities->emu_model) - schedule_delayed_work(&emu->emu1010.firmware_work, 0); - pci_set_drvdata(pci, card); dev++; return 0; @@ -194,7 +191,7 @@ static int snd_emu10k1_suspend(struct device *dev) emu->suspend = 1; - cancel_delayed_work_sync(&emu->emu1010.firmware_work); + cancel_work_sync(&emu->emu1010.firmware_work); snd_ac97_suspend(emu->ac97); @@ -224,9 +221,6 @@ static int snd_emu10k1_resume(struct device *dev) snd_power_change_state(card, SNDRV_CTL_POWER_D0); - if (emu->card_capabilities->emu_model) - schedule_delayed_work(&emu->emu1010.firmware_work, 0); - return 0; } diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c index 58ed72de6403..661164dbf547 100644 --- a/sound/pci/emu10k1/emu10k1_main.c +++ b/sound/pci/emu10k1/emu10k1_main.c @@ -391,7 +391,10 @@ static void snd_emu10k1_audio_enable(struct snd_emu10k1 *emu) } #endif - snd_emu10k1_intr_enable(emu, INTE_PCIERRORENABLE); + if (emu->card_capabilities->emu_model) + snd_emu10k1_intr_enable(emu, INTE_PCIERRORENABLE | INTE_A_GPIOENABLE); + else + snd_emu10k1_intr_enable(emu, INTE_PCIERRORENABLE); } int snd_emu10k1_done(struct snd_emu10k1 *emu) @@ -745,14 +748,13 @@ static void emu1010_firmware_work(struct work_struct *work) int err; emu = container_of(work, struct snd_emu10k1, - emu1010.firmware_work.work); + emu1010.firmware_work); if (emu->card->shutdown) return; #ifdef CONFIG_PM_SLEEP if (emu->suspend) return; #endif - snd_emu1010_fpga_read(emu, EMU_HANA_IRQ_STATUS, &tmp); /* IRQ Status */ snd_emu1010_fpga_read(emu, EMU_HANA_OPTION_CARDS, ®); /* OPTIONS: Which cards are attached to the EMU */ if (reg & EMU_HANA_OPTION_DOCK_OFFLINE) { /* Audio Dock attached */ @@ -763,13 +765,8 @@ static void emu1010_firmware_work(struct work_struct *work) EMU_HANA_FPGA_CONFIG_AUDIODOCK); err = snd_emu1010_load_firmware(emu, 1, &emu->dock_fw); if (err < 0) - goto next; - + return; snd_emu1010_fpga_write(emu, EMU_HANA_FPGA_CONFIG, 0); - snd_emu1010_fpga_read(emu, EMU_HANA_IRQ_STATUS, &tmp); - dev_info(emu->card->dev, - "emu1010: EMU_HANA+DOCK_IRQ_STATUS = 0x%x\n", tmp); - /* ID, should read & 0x7f = 0x55 when FPGA programmed. */ snd_emu1010_fpga_read(emu, EMU_HANA_ID, &tmp); dev_info(emu->card->dev, "emu1010: EMU_HANA+DOCK_ID = 0x%x\n", tmp); @@ -778,7 +775,7 @@ static void emu1010_firmware_work(struct work_struct *work) dev_info(emu->card->dev, "emu1010: Loading Audio Dock Firmware file failed, reg = 0x%x\n", tmp); - goto next; + return; } dev_info(emu->card->dev, "emu1010: Audio Dock Firmware loaded\n"); @@ -790,18 +787,22 @@ static void emu1010_firmware_work(struct work_struct *work) msleep(10); /* Unmute all. Default is muted after a firmware load */ snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE); - } else if (!reg && emu->emu1010.last_reg) { + } +} + +static void emu1010_interrupt(struct snd_emu10k1 *emu) +{ + u32 sts; + + 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); } - - next: - emu->emu1010.last_reg = reg; - if (!emu->card->shutdown) - schedule_delayed_work(&emu->emu1010.firmware_work, - msecs_to_jiffies(1000)); } /* @@ -870,6 +871,8 @@ static int snd_emu10k1_emu1010_init(struct snd_emu10k1 *emu) snd_emu1010_fpga_read(emu, EMU_HANA_OPTION_CARDS, ®); 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); if (emu->card_capabilities->no_adat) { emu->emu1010.optical_in = 0; /* IN_SPDIF */ emu->emu1010.optical_out = 0; /* OUT_SPDIF */ @@ -895,10 +898,12 @@ static int snd_emu10k1_emu1010_init(struct snd_emu10k1 *emu) /* MIDI routing */ snd_emu1010_fpga_write(emu, EMU_HANA_MIDI_IN, EMU_HANA_MIDI_INA_FROM_HAMOA | EMU_HANA_MIDI_INB_FROM_DOCK2); snd_emu1010_fpga_write(emu, EMU_HANA_MIDI_OUT, EMU_HANA_MIDI_OUT_DOCK2 | EMU_HANA_MIDI_OUT_SYNC2); - /* IRQ Enable: All on */ - /* snd_emu1010_fpga_write(emu, EMU_HANA_IRQ_ENABLE, 0x0f); */ - /* IRQ Enable: All off */ - snd_emu1010_fpga_write(emu, EMU_HANA_IRQ_ENABLE, 0x00); + + emu->gpio_interrupt = emu1010_interrupt; + // Note: The Audigy INTE is set later + snd_emu1010_fpga_write(emu, EMU_HANA_IRQ_ENABLE, + EMU_HANA_IRQ_DOCK | EMU_HANA_IRQ_DOCK_LOST); + snd_emu1010_fpga_read(emu, EMU_HANA_IRQ_STATUS, ®); // Clear pending IRQs emu->emu1010.clock_source = 1; /* 48000 */ emu->emu1010.clock_fallback = 1; /* 48000 */ @@ -938,7 +943,7 @@ 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_delayed_work_sync(&emu->emu1010.firmware_work); + cancel_work_sync(&emu->emu1010.firmware_work); release_firmware(emu->firmware); release_firmware(emu->dock_fw); snd_util_memhdr_free(emu->memhdr); @@ -1517,7 +1522,7 @@ int snd_emu10k1_create(struct snd_card *card, emu->irq = -1; emu->synth = NULL; emu->get_synth_voice = NULL; - INIT_DELAYED_WORK(&emu->emu1010.firmware_work, emu1010_firmware_work); + INIT_WORK(&emu->emu1010.firmware_work, emu1010_firmware_work); /* read revision & serial */ emu->revision = pci->revision; pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &emu->serial); diff --git a/sound/pci/emu10k1/io.c b/sound/pci/emu10k1/io.c index a0d66ce3ee83..c695cb863e5e 100644 --- a/sound/pci/emu10k1/io.c +++ b/sound/pci/emu10k1/io.c @@ -302,6 +302,8 @@ static void snd_emu1010_fpga_read_locked(struct snd_emu10k1 *emu, u32 reg, u32 * { // The higest input pin is used as the designated interrupt trigger, // so it needs to be masked out. + // But note that any other input pin change will also cause an IRQ, + // so using this function often causes an IRQ as a side effect. u32 mask = emu->card_capabilities->ca0108_chip ? 0x1f : 0x7f; if (snd_BUG_ON(reg > 0x3f)) return; diff --git a/sound/pci/emu10k1/irq.c b/sound/pci/emu10k1/irq.c index a813ef8c2f8d..8573248dd799 100644 --- a/sound/pci/emu10k1/irq.c +++ b/sound/pci/emu10k1/irq.c @@ -149,6 +149,13 @@ irqreturn_t snd_emu10k1_interrupt(int irq, void *dev_id) outl(0, emu->port + INTE2); status &= ~IPR_P16V; } + if (status & IPR_A_GPIO) { + if (emu->gpio_interrupt) + emu->gpio_interrupt(emu); + else + snd_emu10k1_intr_disable(emu, INTE_A_GPIOENABLE); + status &= ~IPR_A_GPIO; + } if (status) { dev_err(emu->card->dev, |