| /* |
| * PC-Speaker driver for Linux |
| * |
| * Mixer implementation. |
| * Copyright (C) 2001-2008 Stas Sergeev |
| */ |
| |
| #include <sound/core.h> |
| #include <sound/control.h> |
| #include "pcsp.h" |
| |
| |
| static int pcsp_enable_info(struct snd_kcontrol *kcontrol, |
| 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 pcsp_enable_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol); |
| ucontrol->value.integer.value[0] = chip->enable; |
| return 0; |
| } |
| |
| static int pcsp_enable_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol); |
| int changed = 0; |
| int enab = ucontrol->value.integer.value[0]; |
| if (enab != chip->enable) { |
| chip->enable = enab; |
| changed = 1; |
| } |
| return changed; |
| } |
| |
| static int pcsp_treble_info(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_info *uinfo) |
| { |
| struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol); |
| uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
| uinfo->count = 1; |
| uinfo->value.enumerated.items = chip->max_treble + 1; |
| if (uinfo->value.enumerated.item > chip->max_treble) |
| uinfo->value.enumerated.item = chip->max_treble; |
| sprintf(uinfo->value.enumerated.name, "%d", PCSP_RATE()); |
| return 0; |
| } |
| |
| static int pcsp_treble_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol); |
| ucontrol->value.enumerated.item[0] = chip->treble; |
| return 0; |
| } |
| |
| static int pcsp_treble_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol); |
| int changed = 0; |
| int treble = ucontrol->value.enumerated.item[0]; |
| if (treble != chip->treble) { |
| chip->treble = treble; |
| #if PCSP_DEBUG |
| printk(KERN_INFO "PCSP: rate set to %i\n", PCSP_RATE()); |
| #endif |
| changed = 1; |
| } |
| return changed; |
| } |
| |
| static int pcsp_pcspkr_info(struct snd_kcontrol *kcontrol, |
| 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 pcsp_pcspkr_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol); |
| ucontrol->value.integer.value[0] = chip->pcspkr; |
| return 0; |
| } |
| |
| static int pcsp_pcspkr_put(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol); |
| int changed = 0; |
| int spkr = ucontrol->value.integer.value[0]; |
| if (spkr != chip->pcspkr) { |
| chip->pcspkr = spkr; |
| changed = 1; |
| } |
| return changed; |
| } |
| |
| #define PCSP_MIXER_CONTROL(ctl_type, ctl_name) \ |
| { \ |
| .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ |
| .name = ctl_name, \ |
| .info = pcsp_##ctl_type##_info, \ |
| .get = pcsp_##ctl_type##_get, \ |
| .put = pcsp_##ctl_type##_put, \ |
| } |
| |
| static struct snd_kcontrol_new __devinitdata snd_pcsp_controls[] = { |
| PCSP_MIXER_CONTROL(enable, "Master Playback Switch"), |
| PCSP_MIXER_CONTROL(treble, "BaseFRQ Playback Volume"), |
| PCSP_MIXER_CONTROL(pcspkr, "PC Speaker Playback Switch"), |
| }; |
| |
| int __devinit snd_pcsp_new_mixer(struct snd_pcsp *chip) |
| { |
| struct snd_card *card = chip->card; |
| int i, err; |
| |
| for (i = 0; i < ARRAY_SIZE(snd_pcsp_controls); i++) { |
| err = snd_ctl_add(card, |
| snd_ctl_new1(snd_pcsp_controls + i, |
| chip)); |
| if (err < 0) |
| return err; |
| } |
| |
| strcpy(card->mixername, "PC-Speaker"); |
| |
| return 0; |
| } |