diff options
| -rw-r--r-- | sound/pci/Kconfig | 10 | ||||
| -rw-r--r-- | sound/pci/maestro3.c | 116 |
2 files changed, 124 insertions, 2 deletions
diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig index 517ae65ffc8..ebcf065ad2c 100644 --- a/sound/pci/Kconfig +++ b/sound/pci/Kconfig @@ -667,6 +667,16 @@ config SND_MAESTRO3 To compile this driver as a module, choose M here: the module will be called snd-maestro3. +config SND_MAESTRO3_INPUT + bool "Enable input device for maestro3 volume buttons" + depends on SND_MAESTRO3 + depends on INPUT=y || INPUT=SND_MAESTRO3 + help + If you say Y here, you will get an input device which reports + keypresses for the volume buttons connected to the maestro3 chip. + If you say N the buttons will directly control the master volume. + It is recommended to say Y. + config SND_MIXART tristate "Digigram miXart" select SND_HWDEP diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c index 53d2a5d61ba..217a4dcb259 100644 --- a/sound/pci/maestro3.c +++ b/sound/pci/maestro3.c @@ -41,6 +41,7 @@ #include <linux/vmalloc.h> #include <linux/moduleparam.h> #include <linux/firmware.h> +#include <linux/input.h> #include <sound/core.h> #include <sound/info.h> #include <sound/control.h> @@ -844,11 +845,17 @@ struct snd_m3 { struct m3_dma *substreams; spinlock_t reg_lock; - spinlock_t ac97_lock; +#ifdef CONFIG_SND_MAESTRO3_INPUT + struct input_dev *input_dev; + char phys[64]; /* physical device path */ +#else + spinlock_t ac97_lock; struct snd_kcontrol *master_switch; struct snd_kcontrol *master_volume; struct tasklet_struct hwvol_tq; +#endif + unsigned int in_suspend; #ifdef CONFIG_PM @@ -1606,7 +1613,9 @@ static void snd_m3_update_hw_volume(unsigned long private_data) { struct snd_m3 *chip = (struct snd_m3 *) private_data; int x, val; +#ifndef CONFIG_SND_MAESTRO3_INPUT unsigned long flags; +#endif /* Figure out which volume control button was pushed, based on differences from the default register @@ -1632,6 +1641,7 @@ static void snd_m3_update_hw_volume(unsigned long private_data) if (chip->in_suspend) return; +#ifndef CONFIG_SND_MAESTRO3_INPUT if (!chip->master_switch || !chip->master_volume) return; @@ -1677,6 +1687,35 @@ static void snd_m3_update_hw_volume(unsigned long private_data) break; } spin_unlock_irqrestore(&chip->ac97_lock, flags); +#else + if (!chip->input_dev) + return; + + val = 0; + switch (x) { + case 0x88: + /* The counters have not changed, yet we've received a HV + interrupt. According to tests run by various people this + happens when pressing the mute button. */ + val = KEY_MUTE; + break; + case 0xaa: + /* counters increased by 1 -> volume up */ + val = KEY_VOLUMEUP; + break; + case 0x66: + /* counters decreased by 1 -> volume down */ + val = KEY_VOLUMEDOWN; + break; + } + + if (val) { + input_report_key(chip->input_dev, val, 1); + input_sync(chip->input_dev); + input_report_key(chip->input_dev, val, 0); + input_sync(chip->input_dev); + } +#endif } static irqreturn_t snd_m3_interrupt(int irq, void *dev_id) @@ -1691,7 +1730,11 @@ static irqreturn_t snd_m3_interrupt(int irq, void *dev_id) return IRQ_NONE; if (status & HV_INT_PENDING) +#ifdef CONFIG_SND_MAESTRO3_INPUT + snd_m3_update_hw_volume((unsigned long)chip); +#else tasklet_schedule(&chip->hwvol_tq); +#endif /* * ack an assp int if its running @@ -1957,18 +2000,24 @@ static unsigned short snd_m3_ac97_read(struct snd_ac97 *ac97, unsigned short reg) { struct snd_m3 *chip = ac97->private_data; +#ifndef CONFIG_SND_MAESTRO3_INPUT unsigned long flags; +#endif unsigned short data = 0xffff; if (snd_m3_ac97_wait(chip)) goto fail; +#ifndef CONFIG_SND_MAESTRO3_INPUT spin_lock_irqsave(&chip->ac97_lock, flags); +#endif snd_m3_outb(chip, 0x80 | (reg & 0x7f), CODEC_COMMAND); if (snd_m3_ac97_wait(chip)) goto fail_unlock; data = snd_m3_inw(chip, CODEC_DATA); fail_unlock: +#ifndef CONFIG_SND_MAESTRO3_INPUT spin_unlock_irqrestore(&chip->ac97_lock, flags); +#endif fail: return data; } @@ -1977,14 +2026,20 @@ static void snd_m3_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val) { struct snd_m3 *chip = ac97->private_data; +#ifndef CONFIG_SND_MAESTRO3_INPUT unsigned long flags; +#endif if (snd_m3_ac97_wait(chip)) return; +#ifndef CONFIG_SND_MAESTRO3_INPUT spin_lock_irqsave(&chip->ac97_lock, flags); +#endif snd_m3_outw(chip, val, CODEC_DATA); snd_m3_outb(chip, reg & 0x7f, CODEC_COMMAND); +#ifndef CONFIG_SND_MAESTRO3_INPUT spin_unlock_irqrestore(&chip->ac97_lock, flags); +#endif } @@ -2091,7 +2146,9 @@ static int __devinit snd_m3_mixer(struct snd_m3 *chip) { struct snd_ac97_bus *pbus; struct snd_ac97_template ac97; +#ifndef CONFIG_SND_MAESTRO3_INPUT struct snd_ctl_elem_id elem_id; +#endif int err; static struct snd_ac97_bus_ops ops = { .write = snd_m3_ac97_write, @@ -2111,6 +2168,7 @@ static int __devinit snd_m3_mixer(struct snd_m3 *chip) schedule_timeout_uninterruptible(msecs_to_jiffies(100)); snd_ac97_write(chip->ac97, AC97_PCM, 0); +#ifndef CONFIG_SND_MAESTRO3_INPUT memset(&elem_id, 0, sizeof(elem_id)); elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; strcpy(elem_id.name, "Master Playback Switch"); @@ -2119,6 +2177,7 @@ static int __devinit snd_m3_mixer(struct snd_m3 *chip) elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; strcpy(elem_id.name, "Master Playback Volume"); chip->master_volume = snd_ctl_find_id(chip->card, &elem_id); +#endif return 0; } @@ -2398,6 +2457,11 @@ static int snd_m3_free(struct snd_m3 *chip) struct m3_dma *s; int i; +#ifdef CONFIG_SND_MAESTRO3_INPUT + if (chip->input_dev) + input_unregister_device(chip->input_dev); +#endif + if (chip->substreams) { spin_lock_irq(&chip->reg_lock); for (i = 0; i < chip->num_substreams; i++) { @@ -2524,6 +2588,41 @@ static int m3_resume(struct pci_dev *pci) } #endif /* CONFIG_PM */ +#ifdef CONFIG_SND_MAESTRO3_INPUT +static int __devinit snd_m3_input_register(struct snd_m3 *chip) +{ + struct input_dev *input_dev; + int err; + + input_dev = input_allocate_device(); + if (!input_dev) + return -ENOMEM; + + snprintf(chip->phys, sizeof(chip->phys), "pci-%s/input0", + pci_name(chip->pci)); + + input_dev->name = chip->card->driver; + input_dev->phys = chip->phys; + input_dev->id.bustype = BUS_PCI; + input_dev->id.vendor = chip->pci->vendor; + input_dev->id.product = chip->pci->device; + input_dev->dev.parent = &chip->pci->dev; + + __set_bit(EV_KEY, input_dev->evbit); + __set_bit(KEY_MUTE, input_dev->keybit); + __set_bit(KEY_VOLUMEDOWN, input_dev->keybit); + __set_bit(KEY_VOLUMEUP, input_dev->keybit); + + err = input_register_device(input_dev); + if (err) { + input_free_device(input_dev); + return err; + } + + chip->input_dev = input_dev; + return 0; +} +#endif /* CONFIG_INPUT */ /* */ @@ -2567,7 +2666,9 @@ snd_m3_create(struct snd_card *card, struct pci_dev *pci, } spin_lock_init(&chip->reg_lock); +#ifndef CONFIG_SND_MAESTRO3_INPUT spin_lock_init(&chip->ac97_lock); +#endif switch (pci->device) { case PCI_DEVICE_ID_ESS_ALLEGRO: @@ -2650,7 +2751,9 @@ snd_m3_create(struct snd_card *card, struct pci_dev *pci, snd_m3_hv_init(chip); +#ifndef CONFIG_SND_MAESTRO3_INPUT tasklet_init(&chip->hwvol_tq, snd_m3_update_hw_volume, (unsigned long)chip); +#endif if (request_irq(pci->irq, snd_m3_interrupt, IRQF_SHARED, card->driver, chip)) { @@ -2682,7 +2785,16 @@ snd_m3_create(struct snd_card *card, struct pci_dev *pci, if ((err = snd_m3_pcm(chip, 0)) < 0) return err; - + +#ifdef CONFIG_SND_MAESTRO3_INPUT + if (chip->hv_config & HV_CTRL_ENABLE) { + err = snd_m3_input_register(chip); + if (err) + snd_printk(KERN_WARNING "Input device registration " + "failed with error %i", err); + } +#endif + snd_m3_enable_ints(chip); snd_m3_assp_continue(chip); 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