diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/drivers/pcsp/pcsp.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/drivers/pcsp/pcsp.c | 244 |
1 files changed, 0 insertions, 244 deletions
diff --git a/ANDROID_3.4.5/sound/drivers/pcsp/pcsp.c b/ANDROID_3.4.5/sound/drivers/pcsp/pcsp.c deleted file mode 100644 index 99704e6a..00000000 --- a/ANDROID_3.4.5/sound/drivers/pcsp/pcsp.c +++ /dev/null @@ -1,244 +0,0 @@ -/* - * PC-Speaker driver for Linux - * - * Copyright (C) 1997-2001 David Woodhouse - * Copyright (C) 2001-2008 Stas Sergeev - */ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <sound/core.h> -#include <sound/initval.h> -#include <sound/pcm.h> -#include <linux/input.h> -#include <linux/delay.h> -#include <asm/bitops.h> -#include "pcsp_input.h" -#include "pcsp.h" - -MODULE_AUTHOR("Stas Sergeev <stsp@users.sourceforge.net>"); -MODULE_DESCRIPTION("PC-Speaker driver"); -MODULE_LICENSE("GPL"); -MODULE_SUPPORTED_DEVICE("{{PC-Speaker, pcsp}}"); -MODULE_ALIAS("platform:pcspkr"); - -static int index = SNDRV_DEFAULT_IDX1; /* Index 0-MAX */ -static char *id = SNDRV_DEFAULT_STR1; /* ID for this card */ -static bool enable = SNDRV_DEFAULT_ENABLE1; /* Enable this card */ -static bool nopcm; /* Disable PCM capability of the driver */ - -module_param(index, int, 0444); -MODULE_PARM_DESC(index, "Index value for pcsp soundcard."); -module_param(id, charp, 0444); -MODULE_PARM_DESC(id, "ID string for pcsp soundcard."); -module_param(enable, bool, 0444); -MODULE_PARM_DESC(enable, "Enable PC-Speaker sound."); -module_param(nopcm, bool, 0444); -MODULE_PARM_DESC(nopcm, "Disable PC-Speaker PCM sound. Only beeps remain."); - -struct snd_pcsp pcsp_chip; - -static int __devinit snd_pcsp_create(struct snd_card *card) -{ - static struct snd_device_ops ops = { }; - struct timespec tp; - int err; - int div, min_div, order; - - if (!nopcm) { - hrtimer_get_res(CLOCK_MONOTONIC, &tp); - if (tp.tv_sec || tp.tv_nsec > PCSP_MAX_PERIOD_NS) { - printk(KERN_ERR "PCSP: Timer resolution is not sufficient " - "(%linS)\n", tp.tv_nsec); - printk(KERN_ERR "PCSP: Make sure you have HPET and ACPI " - "enabled.\n"); - printk(KERN_ERR "PCSP: Turned into nopcm mode.\n"); - nopcm = 1; - } - } - - if (loops_per_jiffy >= PCSP_MIN_LPJ && tp.tv_nsec <= PCSP_MIN_PERIOD_NS) - min_div = MIN_DIV; - else - min_div = MAX_DIV; -#if PCSP_DEBUG - printk(KERN_DEBUG "PCSP: lpj=%li, min_div=%i, res=%li\n", - loops_per_jiffy, min_div, tp.tv_nsec); -#endif - - div = MAX_DIV / min_div; - order = fls(div) - 1; - - pcsp_chip.max_treble = min(order, PCSP_MAX_TREBLE); - pcsp_chip.treble = min(pcsp_chip.max_treble, PCSP_DEFAULT_TREBLE); - pcsp_chip.playback_ptr = 0; - pcsp_chip.period_ptr = 0; - atomic_set(&pcsp_chip.timer_active, 0); - pcsp_chip.enable = 1; - pcsp_chip.pcspkr = 1; - - spin_lock_init(&pcsp_chip.substream_lock); - - pcsp_chip.card = card; - pcsp_chip.port = 0x61; - pcsp_chip.irq = -1; - pcsp_chip.dma = -1; - - /* Register device */ - err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, &pcsp_chip, &ops); - if (err < 0) - return err; - - return 0; -} - -static int __devinit snd_card_pcsp_probe(int devnum, struct device *dev) -{ - struct snd_card *card; - int err; - - if (devnum != 0) - return -EINVAL; - - hrtimer_init(&pcsp_chip.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); - pcsp_chip.timer.function = pcsp_do_timer; - - err = snd_card_create(index, id, THIS_MODULE, 0, &card); - if (err < 0) - return err; - - err = snd_pcsp_create(card); - if (err < 0) { - snd_card_free(card); - return err; - } - if (!nopcm) { - err = snd_pcsp_new_pcm(&pcsp_chip); - if (err < 0) { - snd_card_free(card); - return err; - } - } - err = snd_pcsp_new_mixer(&pcsp_chip, nopcm); - if (err < 0) { - snd_card_free(card); - return err; - } - - snd_card_set_dev(pcsp_chip.card, dev); - - strcpy(card->driver, "PC-Speaker"); - strcpy(card->shortname, "pcsp"); - sprintf(card->longname, "Internal PC-Speaker at port 0x%x", - pcsp_chip.port); - - err = snd_card_register(card); - if (err < 0) { - snd_card_free(card); - return err; - } - - return 0; -} - -static int __devinit alsa_card_pcsp_init(struct device *dev) -{ - int err; - - err = snd_card_pcsp_probe(0, dev); - if (err) { - printk(KERN_ERR "PC-Speaker initialization failed.\n"); - return err; - } - -#ifdef CONFIG_DEBUG_PAGEALLOC - /* Well, CONFIG_DEBUG_PAGEALLOC makes the sound horrible. Lets alert */ - printk(KERN_WARNING "PCSP: CONFIG_DEBUG_PAGEALLOC is enabled, " - "which may make the sound noisy.\n"); -#endif - - return 0; -} - -static void __devexit alsa_card_pcsp_exit(struct snd_pcsp *chip) -{ - snd_card_free(chip->card); -} - -static int __devinit pcsp_probe(struct platform_device *dev) -{ - int err; - - err = pcspkr_input_init(&pcsp_chip.input_dev, &dev->dev); - if (err < 0) - return err; - - err = alsa_card_pcsp_init(&dev->dev); - if (err < 0) { - pcspkr_input_remove(pcsp_chip.input_dev); - return err; - } - - platform_set_drvdata(dev, &pcsp_chip); - return 0; -} - -static int __devexit pcsp_remove(struct platform_device *dev) -{ - struct snd_pcsp *chip = platform_get_drvdata(dev); - alsa_card_pcsp_exit(chip); - pcspkr_input_remove(chip->input_dev); - platform_set_drvdata(dev, NULL); - return 0; -} - -static void pcsp_stop_beep(struct snd_pcsp *chip) -{ - pcsp_sync_stop(chip); - pcspkr_stop_sound(); -} - -#ifdef CONFIG_PM -static int pcsp_suspend(struct platform_device *dev, pm_message_t state) -{ - struct snd_pcsp *chip = platform_get_drvdata(dev); - pcsp_stop_beep(chip); - snd_pcm_suspend_all(chip->pcm); - return 0; -} -#else -#define pcsp_suspend NULL -#endif /* CONFIG_PM */ - -static void pcsp_shutdown(struct platform_device *dev) -{ - struct snd_pcsp *chip = platform_get_drvdata(dev); - pcsp_stop_beep(chip); -} - -static struct platform_driver pcsp_platform_driver = { - .driver = { - .name = "pcspkr", - .owner = THIS_MODULE, - }, - .probe = pcsp_probe, - .remove = __devexit_p(pcsp_remove), - .suspend = pcsp_suspend, - .shutdown = pcsp_shutdown, -}; - -static int __init pcsp_init(void) -{ - if (!enable) - return -ENODEV; - return platform_driver_register(&pcsp_platform_driver); -} - -static void __exit pcsp_exit(void) -{ - platform_driver_unregister(&pcsp_platform_driver); -} - -module_init(pcsp_init); -module_exit(pcsp_exit); |