diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/ppc/beep.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/ppc/beep.c | 285 |
1 files changed, 0 insertions, 285 deletions
diff --git a/ANDROID_3.4.5/sound/ppc/beep.c b/ANDROID_3.4.5/sound/ppc/beep.c deleted file mode 100644 index a9d35078..00000000 --- a/ANDROID_3.4.5/sound/ppc/beep.c +++ /dev/null @@ -1,285 +0,0 @@ -/* - * Beep using pcm - * - * Copyright (c) by Takashi Iwai <tiwai@suse.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <asm/io.h> -#include <asm/irq.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/input.h> -#include <linux/pci.h> -#include <linux/dma-mapping.h> -#include <sound/core.h> -#include <sound/control.h> -#include "pmac.h" - -struct pmac_beep { - int running; /* boolean */ - int volume; /* mixer volume: 0-100 */ - int volume_play; /* currently playing volume */ - int hz; - int nsamples; - short *buf; /* allocated wave buffer */ - dma_addr_t addr; /* physical address of buffer */ - struct input_dev *dev; -}; - -/* - * stop beep if running - */ -void snd_pmac_beep_stop(struct snd_pmac *chip) -{ - struct pmac_beep *beep = chip->beep; - if (beep && beep->running) { - beep->running = 0; - snd_pmac_beep_dma_stop(chip); - } -} - -/* - * Stuff for outputting a beep. The values range from -327 to +327 - * so we can multiply by an amplitude in the range 0..100 to get a - * signed short value to put in the output buffer. - */ -static short beep_wform[256] = { - 0, 40, 79, 117, 153, 187, 218, 245, - 269, 288, 304, 316, 323, 327, 327, 324, - 318, 310, 299, 288, 275, 262, 249, 236, - 224, 213, 204, 196, 190, 186, 183, 182, - 182, 183, 186, 189, 192, 196, 200, 203, - 206, 208, 209, 209, 209, 207, 204, 201, - 197, 193, 188, 183, 179, 174, 170, 166, - 163, 161, 160, 159, 159, 160, 161, 162, - 164, 166, 168, 169, 171, 171, 171, 170, - 169, 167, 163, 159, 155, 150, 144, 139, - 133, 128, 122, 117, 113, 110, 107, 105, - 103, 103, 103, 103, 104, 104, 105, 105, - 105, 103, 101, 97, 92, 86, 78, 68, - 58, 45, 32, 18, 3, -11, -26, -41, - -55, -68, -79, -88, -95, -100, -102, -102, - -99, -93, -85, -75, -62, -48, -33, -16, - 0, 16, 33, 48, 62, 75, 85, 93, - 99, 102, 102, 100, 95, 88, 79, 68, - 55, 41, 26, 11, -3, -18, -32, -45, - -58, -68, -78, -86, -92, -97, -101, -103, - -105, -105, -105, -104, -104, -103, -103, -103, - -103, -105, -107, -110, -113, -117, -122, -128, - -133, -139, -144, -150, -155, -159, -163, -167, - -169, -170, -171, -171, -171, -169, -168, -166, - -164, -162, -161, -160, -159, -159, -160, -161, - -163, -166, -170, -174, -179, -183, -188, -193, - -197, -201, -204, -207, -209, -209, -209, -208, - -206, -203, -200, -196, -192, -189, -186, -183, - -182, -182, -183, -186, -190, -196, -204, -213, - -224, -236, -249, -262, -275, -288, -299, -310, - -318, -324, -327, -327, -323, -316, -304, -288, - -269, -245, -218, -187, -153, -117, -79, -40, -}; - -#define BEEP_SRATE 22050 /* 22050 Hz sample rate */ -#define BEEP_BUFLEN 512 -#define BEEP_VOLUME 15 /* 0 - 100 */ - -static int snd_pmac_beep_event(struct input_dev *dev, unsigned int type, - unsigned int code, int hz) -{ - struct snd_pmac *chip; - struct pmac_beep *beep; - unsigned long flags; - int beep_speed = 0; - int srate; - int period, ncycles, nsamples; - int i, j, f; - short *p; - - if (type != EV_SND) - return -1; - - switch (code) { - case SND_BELL: if (hz) hz = 1000; - case SND_TONE: break; - default: return -1; - } - - chip = input_get_drvdata(dev); - if (! chip || (beep = chip->beep) == NULL) - return -1; - - if (! hz) { - spin_lock_irqsave(&chip->reg_lock, flags); - if (beep->running) - snd_pmac_beep_stop(chip); - spin_unlock_irqrestore(&chip->reg_lock, flags); - return 0; - } - - beep_speed = snd_pmac_rate_index(chip, &chip->playback, BEEP_SRATE); - srate = chip->freq_table[beep_speed]; - - if (hz <= srate / BEEP_BUFLEN || hz > srate / 2) - hz = 1000; - - spin_lock_irqsave(&chip->reg_lock, flags); - if (chip->playback.running || chip->capture.running || beep->running) { - spin_unlock_irqrestore(&chip->reg_lock, flags); - return 0; - } - beep->running = 1; - spin_unlock_irqrestore(&chip->reg_lock, flags); - - if (hz == beep->hz && beep->volume == beep->volume_play) { - nsamples = beep->nsamples; - } else { - period = srate * 256 / hz; /* fixed point */ - ncycles = BEEP_BUFLEN * 256 / period; - nsamples = (period * ncycles) >> 8; - f = ncycles * 65536 / nsamples; - j = 0; - p = beep->buf; - for (i = 0; i < nsamples; ++i, p += 2) { - p[0] = p[1] = beep_wform[j >> 8] * beep->volume; - j = (j + f) & 0xffff; - } - beep->hz = hz; - beep->volume_play = beep->volume; - beep->nsamples = nsamples; - } - - spin_lock_irqsave(&chip->reg_lock, flags); - snd_pmac_beep_dma_start(chip, beep->nsamples * 4, beep->addr, beep_speed); - spin_unlock_irqrestore(&chip->reg_lock, flags); - return 0; -} - -/* - * beep volume mixer - */ - -static int snd_pmac_info_beep(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_info *uinfo) -{ - uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; - uinfo->count = 1; - uinfo->value.integer.min = 0; - uinfo->value.integer.max = 100; - return 0; -} - -static int snd_pmac_get_beep(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); - if (snd_BUG_ON(!chip->beep)) - return -ENXIO; - ucontrol->value.integer.value[0] = chip->beep->volume; - return 0; -} - -static int snd_pmac_put_beep(struct snd_kcontrol *kcontrol, - struct snd_ctl_elem_value *ucontrol) -{ - struct snd_pmac *chip = snd_kcontrol_chip(kcontrol); - unsigned int oval, nval; - if (snd_BUG_ON(!chip->beep)) - return -ENXIO; - oval = chip->beep->volume; - nval = ucontrol->value.integer.value[0]; - if (nval > 100) - return -EINVAL; - chip->beep->volume = nval; - return oval != chip->beep->volume; -} - -static struct snd_kcontrol_new snd_pmac_beep_mixer = { - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "Beep Playback Volume", - .info = snd_pmac_info_beep, - .get = snd_pmac_get_beep, - .put = snd_pmac_put_beep, -}; - -/* Initialize beep stuff */ -int __devinit snd_pmac_attach_beep(struct snd_pmac *chip) -{ - struct pmac_beep *beep; - struct input_dev *input_dev; - struct snd_kcontrol *beep_ctl; - void *dmabuf; - int err = -ENOMEM; - - beep = kzalloc(sizeof(*beep), GFP_KERNEL); - if (! beep) - return -ENOMEM; - dmabuf = dma_alloc_coherent(&chip->pdev->dev, BEEP_BUFLEN * 4, - &beep->addr, GFP_KERNEL); - input_dev = input_allocate_device(); - if (! dmabuf || ! input_dev) - goto fail1; - - /* FIXME: set more better values */ - input_dev->name = "PowerMac Beep"; - input_dev->phys = "powermac/beep"; - input_dev->id.bustype = BUS_ADB; - input_dev->id.vendor = 0x001f; - input_dev->id.product = 0x0001; - input_dev->id.version = 0x0100; - - input_dev->evbit[0] = BIT_MASK(EV_SND); - input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE); - input_dev->event = snd_pmac_beep_event; - input_dev->dev.parent = &chip->pdev->dev; - input_set_drvdata(input_dev, chip); - - beep->dev = input_dev; - beep->buf = dmabuf; - beep->volume = BEEP_VOLUME; - beep->running = 0; - - beep_ctl = snd_ctl_new1(&snd_pmac_beep_mixer, chip); - err = snd_ctl_add(chip->card, beep_ctl); - if (err < 0) - goto fail1; - - chip->beep = beep; - - err = input_register_device(beep->dev); - if (err) - goto fail2; - - return 0; - - fail2: snd_ctl_remove(chip->card, beep_ctl); - fail1: input_free_device(input_dev); - if (dmabuf) - dma_free_coherent(&chip->pdev->dev, BEEP_BUFLEN * 4, - dmabuf, beep->addr); - kfree(beep); - return err; -} - -void snd_pmac_detach_beep(struct snd_pmac *chip) -{ - if (chip->beep) { - input_unregister_device(chip->beep->dev); - dma_free_coherent(&chip->pdev->dev, BEEP_BUFLEN * 4, - chip->beep->buf, chip->beep->addr); - kfree(chip->beep); - chip->beep = NULL; - } -} |