diff options
Diffstat (limited to 'sound/pci/emu10k1/emu10k1_main.c')
| -rw-r--r-- | sound/pci/emu10k1/emu10k1_main.c | 225 |
1 files changed, 91 insertions, 134 deletions
diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c index de5c41e578e1f4..5b8a5ba825bdb2 100644 --- a/sound/pci/emu10k1/emu10k1_main.c +++ b/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, ®); /* 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, ®); - 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, ®); - 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, ®); 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); |