diff options
Diffstat (limited to 'sound/pci/es1968.c')
| -rw-r--r-- | sound/pci/es1968.c | 129 |
1 files changed, 119 insertions, 10 deletions
diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c index ecaea9fb48e..23a58f0d6cb 100644 --- a/sound/pci/es1968.c +++ b/sound/pci/es1968.c @@ -104,6 +104,7 @@ #include <linux/gameport.h> #include <linux/moduleparam.h> #include <linux/mutex.h> +#include <linux/input.h> #include <sound/core.h> #include <sound/pcm.h> @@ -517,14 +518,9 @@ struct es1968 { /* ALSA Stuff */ struct snd_ac97 *ac97; - struct snd_kcontrol *master_switch; /* for h/w volume control */ - struct snd_kcontrol *master_volume; - struct snd_rawmidi *rmidi; spinlock_t reg_lock; - spinlock_t ac97_lock; - struct tasklet_struct hwvol_tq; unsigned int in_suspend; /* Maestro Stuff */ @@ -547,6 +543,16 @@ struct es1968 { #ifdef SUPPORT_JOYSTICK struct gameport *gameport; #endif + +#ifdef CONFIG_SND_ES1968_INPUT + struct input_dev *input_dev; + char phys[64]; /* physical device path */ +#else + struct snd_kcontrol *master_switch; /* for h/w volume control */ + struct snd_kcontrol *master_volume; + spinlock_t ac97_lock; + struct tasklet_struct hwvol_tq; +#endif }; static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id); @@ -632,28 +638,38 @@ static int snd_es1968_ac97_wait_poll(struct es1968 *chip) static void snd_es1968_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val) { struct es1968 *chip = ac97->private_data; +#ifndef CONFIG_SND_ES1968_INPUT unsigned long flags; +#endif snd_es1968_ac97_wait(chip); /* Write the bus */ +#ifndef CONFIG_SND_ES1968_INPUT spin_lock_irqsave(&chip->ac97_lock, flags); +#endif outw(val, chip->io_port + ESM_AC97_DATA); /*msleep(1);*/ outb(reg, chip->io_port + ESM_AC97_INDEX); /*msleep(1);*/ +#ifndef CONFIG_SND_ES1968_INPUT spin_unlock_irqrestore(&chip->ac97_lock, flags); +#endif } static unsigned short snd_es1968_ac97_read(struct snd_ac97 *ac97, unsigned short reg) { u16 data = 0; struct es1968 *chip = ac97->private_data; +#ifndef CONFIG_SND_ES1968_INPUT unsigned long flags; +#endif snd_es1968_ac97_wait(chip); +#ifndef CONFIG_SND_ES1968_INPUT spin_lock_irqsave(&chip->ac97_lock, flags); +#endif outb(reg | 0x80, chip->io_port + ESM_AC97_INDEX); /*msleep(1);*/ @@ -661,7 +677,9 @@ static unsigned short snd_es1968_ac97_read(struct snd_ac97 *ac97, unsigned short data = inw(chip->io_port + ESM_AC97_DATA); /*msleep(1);*/ } +#ifndef CONFIG_SND_ES1968_INPUT spin_unlock_irqrestore(&chip->ac97_lock, flags); +#endif return data; } @@ -1874,13 +1892,17 @@ static void snd_es1968_update_pcm(struct es1968 *chip, struct esschan *es) } } -/* - */ +/* The hardware volume works by incrementing / decrementing 2 counters + (without wrap around) in response to volume button presses and then + generating an interrupt. The pair of counters is stored in bits 1-3 and 5-7 + of a byte wide register. The meaning of bits 0 and 4 is unknown. */ static void es1968_update_hw_volume(unsigned long private_data) { struct es1968 *chip = (struct es1968 *) private_data; int x, val; +#ifndef CONFIG_SND_ES1968_INPUT unsigned long flags; +#endif /* Figure out which volume control button was pushed, based on differences from the default register @@ -1895,6 +1917,7 @@ static void es1968_update_hw_volume(unsigned long private_data) if (chip->in_suspend) return; +#ifndef CONFIG_SND_ES1968_INPUT if (! chip->master_switch || ! chip->master_volume) return; @@ -1937,6 +1960,35 @@ static void es1968_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 } /* @@ -1953,7 +2005,11 @@ static irqreturn_t snd_es1968_interrupt(int irq, void *dev_id) outw(inw(chip->io_port + 4) & 1, chip->io_port + 4); if (event & ESM_HWVOL_IRQ) +#ifdef CONFIG_SND_ES1968_INPUT + es1968_update_hw_volume((unsigned long)chip); +#else tasklet_schedule(&chip->hwvol_tq); /* we'll do this later */ +#endif /* else ack 'em all, i imagine */ outb(0xFF, chip->io_port + 0x1A); @@ -1993,7 +2049,9 @@ snd_es1968_mixer(struct es1968 *chip) { struct snd_ac97_bus *pbus; struct snd_ac97_template ac97; +#ifndef CONFIG_SND_ES1968_INPUT struct snd_ctl_elem_id elem_id; +#endif int err; static struct snd_ac97_bus_ops ops = { .write = snd_es1968_ac97_write, @@ -2009,6 +2067,7 @@ snd_es1968_mixer(struct es1968 *chip) if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0) return err; +#ifndef CONFIG_SND_ES1968_INPUT /* attach master switch / volumes for h/w volume control */ memset(&elem_id, 0, sizeof(elem_id)); elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER; @@ -2018,6 +2077,7 @@ snd_es1968_mixer(struct es1968 *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; } @@ -2341,6 +2401,7 @@ static void snd_es1968_start_irq(struct es1968 *chip) w = ESM_HIRQ_DSIE | ESM_HIRQ_HW_VOLUME; if (chip->rmidi) w |= ESM_HIRQ_MPU401; + outb(w, chip->io_port + 0x1A); outw(w, chip->io_port + ESM_PORT_HOST_IRQ); } @@ -2474,8 +2535,49 @@ static inline int snd_es1968_create_gameport(struct es1968 *chip, int dev) { ret static inline void snd_es1968_free_gameport(struct es1968 *chip) { } #endif +#ifdef CONFIG_SND_ES1968_INPUT +static int __devinit snd_es1968_input_register(struct es1968 *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_SND_ES1968_INPUT */ + static int snd_es1968_free(struct es1968 *chip) { +#ifdef CONFIG_SND_ES1968_INPUT + if (chip->input_dev) + input_unregister_device(chip->input_dev); +#endif + if (chip->io_port) { if (chip->irq >= 0) synchronize_irq(chip->irq); @@ -2486,8 +2588,6 @@ static int snd_es1968_free(struct es1968 *chip) if (chip->irq >= 0) free_irq(chip->irq, chip); snd_es1968_free_gameport(chip); - chip->master_switch = NULL; - chip->master_volume = NULL; pci_release_regions(chip->pci); pci_disable_device(chip->pci); kfree(chip); @@ -2558,9 +2658,11 @@ static int __devinit snd_es1968_create(struct snd_card *card, spin_lock_init(&chip->substream_lock); INIT_LIST_HEAD(&chip->buf_list); INIT_LIST_HEAD(&chip->substream_list); - spin_lock_init(&chip->ac97_lock); mutex_init(&chip->memory_mutex); +#ifndef CONFIG_SND_ES1968_INPUT + spin_lock_init(&chip->ac97_lock); tasklet_init(&chip->hwvol_tq, es1968_update_hw_volume, (unsigned long)chip); +#endif chip->card = card; chip->pci = pci; chip->irq = -1; @@ -2713,6 +2815,13 @@ static int __devinit snd_es1968_probe(struct pci_dev *pci, snd_es1968_create_gameport(chip, dev); +#ifdef CONFIG_SND_ES1968_INPUT + err = snd_es1968_input_register(chip); + if (err) + snd_printk(KERN_WARNING "Input device registration " + "failed with error %i", err); +#endif + snd_es1968_start_irq(chip); chip->clock = clock[dev]; |