diff options
Diffstat (limited to 'ANDROID_3.4.5/sound/pci/cs5535audio/cs5535audio_olpc.c')
| -rw-r--r-- | ANDROID_3.4.5/sound/pci/cs5535audio/cs5535audio_olpc.c | 191 |
1 files changed, 0 insertions, 191 deletions
diff --git a/ANDROID_3.4.5/sound/pci/cs5535audio/cs5535audio_olpc.c b/ANDROID_3.4.5/sound/pci/cs5535audio/cs5535audio_olpc.c deleted file mode 100644 index 50da49be..00000000 --- a/ANDROID_3.4.5/sound/pci/cs5535audio/cs5535audio_olpc.c +++ /dev/null @@ -1,191 +0,0 @@ -/* - * OLPC XO-1 additional sound features - * - * Copyright © 2006 Jaya Kumar <jayakumar.lkml@gmail.com> - * Copyright © 2007-2008 Andres Salomon <dilinger@debian.org> - * - * 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. - */ -#include <sound/core.h> -#include <sound/info.h> -#include <sound/control.h> -#include <sound/ac97_codec.h> -#include <linux/gpio.h> - -#include <asm/olpc.h> -#include "cs5535audio.h" - -#define DRV_NAME "cs5535audio-olpc" - -/* - * OLPC has an additional feature on top of the regular AD1888 codec features. - * It has an Analog Input mode that is switched into (after disabling the - * High Pass Filter) via GPIO. It is supported on B2 and later models. - */ -void olpc_analog_input(struct snd_ac97 *ac97, int on) -{ - int err; - - if (!machine_is_olpc()) - return; - - /* update the High Pass Filter (via AC97_AD_TEST2) */ - err = snd_ac97_update_bits(ac97, AC97_AD_TEST2, - 1 << AC97_AD_HPFD_SHIFT, on << AC97_AD_HPFD_SHIFT); - if (err < 0) { - snd_printk(KERN_ERR "setting High Pass Filter - %d\n", err); - return; - } - - /* set Analog Input through GPIO */ - gpio_set_value(OLPC_GPIO_MIC_AC, on); -} - -/* - * OLPC XO-1's V_REFOUT is a mic bias enable. - */ -void olpc_mic_bias(struct snd_ac97 *ac97, int on) -{ - int err; - - if (!machine_is_olpc()) - return; - - on = on ? 0 : 1; - err = snd_ac97_update_bits(ac97, AC97_AD_MISC, - 1 << AC97_AD_VREFD_SHIFT, on << AC97_AD_VREFD_SHIFT); - if (err < 0) - snd_printk(KERN_ERR "setting MIC Bias - %d\n", err); -} - -static int olpc_dc_info(struct snd_kcontrol *kctl, - struct snd_ctl_elem_info *uinfo) -{ - uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; - uinfo->count = 1; - uinfo->value.integer.min = 0; - uinfo->value.integer.max = 1; - return 0; -} - -static int olpc_dc_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *v) -{ - v->value.integer.value[0] = gpio_get_value(OLPC_GPIO_MIC_AC); - return 0; -} - -static int olpc_dc_put(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *v) -{ - struct cs5535audio *cs5535au = snd_kcontrol_chip(kctl); - - olpc_analog_input(cs5535au->ac97, v->value.integer.value[0]); - return 1; -} - -static int olpc_mic_info(struct snd_kcontrol *kctl, - struct snd_ctl_elem_info *uinfo) -{ - uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; - uinfo->count = 1; - uinfo->value.integer.min = 0; - uinfo->value.integer.max = 1; - return 0; -} - -static int olpc_mic_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *v) -{ - struct cs5535audio *cs5535au = snd_kcontrol_chip(kctl); - struct snd_ac97 *ac97 = cs5535au->ac97; - int i; - - i = (snd_ac97_read(ac97, AC97_AD_MISC) >> AC97_AD_VREFD_SHIFT) & 0x1; - v->value.integer.value[0] = i ? 0 : 1; - return 0; -} - -static int olpc_mic_put(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *v) -{ - struct cs5535audio *cs5535au = snd_kcontrol_chip(kctl); - - olpc_mic_bias(cs5535au->ac97, v->value.integer.value[0]); - return 1; -} - -static struct snd_kcontrol_new olpc_cs5535audio_ctls[] __devinitdata = { -{ - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "DC Mode Enable", - .info = olpc_dc_info, - .get = olpc_dc_get, - .put = olpc_dc_put, - .private_value = 0, -}, -{ - .iface = SNDRV_CTL_ELEM_IFACE_MIXER, - .name = "MIC Bias Enable", - .info = olpc_mic_info, - .get = olpc_mic_get, - .put = olpc_mic_put, - .private_value = 0, -}, -}; - -void __devinit olpc_prequirks(struct snd_card *card, - struct snd_ac97_template *ac97) -{ - if (!machine_is_olpc()) - return; - - /* invert EAPD if on an OLPC B3 or higher */ - if (olpc_board_at_least(olpc_board_pre(0xb3))) - ac97->scaps |= AC97_SCAP_INV_EAPD; -} - -int __devinit olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97) -{ - struct snd_ctl_elem_id elem; - int i, err; - - if (!machine_is_olpc()) - return 0; - - if (gpio_request(OLPC_GPIO_MIC_AC, DRV_NAME)) { - printk(KERN_ERR DRV_NAME ": unable to allocate MIC GPIO\n"); - return -EIO; - } - gpio_direction_output(OLPC_GPIO_MIC_AC, 0); - - /* drop the original AD1888 HPF control */ - memset(&elem, 0, sizeof(elem)); - elem.iface = SNDRV_CTL_ELEM_IFACE_MIXER; - strncpy(elem.name, "High Pass Filter Enable", sizeof(elem.name)); - snd_ctl_remove_id(card, &elem); - - /* drop the original V_REFOUT control */ - memset(&elem, 0, sizeof(elem)); - elem.iface = SNDRV_CTL_ELEM_IFACE_MIXER; - strncpy(elem.name, "V_REFOUT Enable", sizeof(elem.name)); - snd_ctl_remove_id(card, &elem); - - /* add the OLPC-specific controls */ - for (i = 0; i < ARRAY_SIZE(olpc_cs5535audio_ctls); i++) { - err = snd_ctl_add(card, snd_ctl_new1(&olpc_cs5535audio_ctls[i], - ac97->private_data)); - if (err < 0) { - gpio_free(OLPC_GPIO_MIC_AC); - return err; - } - } - - /* turn off the mic by default */ - olpc_mic_bias(ac97, 0); - return 0; -} - -void __devexit olpc_quirks_cleanup(void) -{ - gpio_free(OLPC_GPIO_MIC_AC); -} |