/* * 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_CALC_RATE(uinfo->value.enumerated.item)); 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; }