Stas Sergeev | 9ab4d07 | 2008-03-03 10:53:54 +0100 | [diff] [blame] | 1 | /* |
| 2 | * PC-Speaker driver for Linux |
| 3 | * |
| 4 | * Mixer implementation. |
| 5 | * Copyright (C) 2001-2008 Stas Sergeev |
| 6 | */ |
| 7 | |
| 8 | #include <sound/core.h> |
| 9 | #include <sound/control.h> |
| 10 | #include "pcsp.h" |
| 11 | |
| 12 | |
| 13 | static int pcsp_enable_info(struct snd_kcontrol *kcontrol, |
| 14 | struct snd_ctl_elem_info *uinfo) |
| 15 | { |
| 16 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
| 17 | uinfo->count = 1; |
| 18 | uinfo->value.integer.min = 0; |
| 19 | uinfo->value.integer.max = 1; |
| 20 | return 0; |
| 21 | } |
| 22 | |
| 23 | static int pcsp_enable_get(struct snd_kcontrol *kcontrol, |
| 24 | struct snd_ctl_elem_value *ucontrol) |
| 25 | { |
| 26 | struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol); |
| 27 | ucontrol->value.integer.value[0] = chip->enable; |
| 28 | return 0; |
| 29 | } |
| 30 | |
| 31 | static int pcsp_enable_put(struct snd_kcontrol *kcontrol, |
| 32 | struct snd_ctl_elem_value *ucontrol) |
| 33 | { |
| 34 | struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol); |
| 35 | int changed = 0; |
| 36 | int enab = ucontrol->value.integer.value[0]; |
| 37 | if (enab != chip->enable) { |
| 38 | chip->enable = enab; |
| 39 | changed = 1; |
| 40 | } |
| 41 | return changed; |
| 42 | } |
| 43 | |
| 44 | static int pcsp_treble_info(struct snd_kcontrol *kcontrol, |
| 45 | struct snd_ctl_elem_info *uinfo) |
| 46 | { |
| 47 | struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol); |
| 48 | uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; |
| 49 | uinfo->count = 1; |
| 50 | uinfo->value.enumerated.items = chip->max_treble + 1; |
| 51 | if (uinfo->value.enumerated.item > chip->max_treble) |
| 52 | uinfo->value.enumerated.item = chip->max_treble; |
Stas Sergeev | 97e08f5 | 2008-05-24 18:05:47 +0200 | [diff] [blame^] | 53 | sprintf(uinfo->value.enumerated.name, "%d", |
| 54 | PCSP_CALC_RATE(uinfo->value.enumerated.item)); |
Stas Sergeev | 9ab4d07 | 2008-03-03 10:53:54 +0100 | [diff] [blame] | 55 | return 0; |
| 56 | } |
| 57 | |
| 58 | static int pcsp_treble_get(struct snd_kcontrol *kcontrol, |
| 59 | struct snd_ctl_elem_value *ucontrol) |
| 60 | { |
| 61 | struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol); |
| 62 | ucontrol->value.enumerated.item[0] = chip->treble; |
| 63 | return 0; |
| 64 | } |
| 65 | |
| 66 | static int pcsp_treble_put(struct snd_kcontrol *kcontrol, |
| 67 | struct snd_ctl_elem_value *ucontrol) |
| 68 | { |
| 69 | struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol); |
| 70 | int changed = 0; |
| 71 | int treble = ucontrol->value.enumerated.item[0]; |
| 72 | if (treble != chip->treble) { |
| 73 | chip->treble = treble; |
| 74 | #if PCSP_DEBUG |
| 75 | printk(KERN_INFO "PCSP: rate set to %i\n", PCSP_RATE()); |
| 76 | #endif |
| 77 | changed = 1; |
| 78 | } |
| 79 | return changed; |
| 80 | } |
| 81 | |
| 82 | static int pcsp_pcspkr_info(struct snd_kcontrol *kcontrol, |
| 83 | struct snd_ctl_elem_info *uinfo) |
| 84 | { |
| 85 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
| 86 | uinfo->count = 1; |
| 87 | uinfo->value.integer.min = 0; |
| 88 | uinfo->value.integer.max = 1; |
| 89 | return 0; |
| 90 | } |
| 91 | |
| 92 | static int pcsp_pcspkr_get(struct snd_kcontrol *kcontrol, |
| 93 | struct snd_ctl_elem_value *ucontrol) |
| 94 | { |
| 95 | struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol); |
| 96 | ucontrol->value.integer.value[0] = chip->pcspkr; |
| 97 | return 0; |
| 98 | } |
| 99 | |
| 100 | static int pcsp_pcspkr_put(struct snd_kcontrol *kcontrol, |
| 101 | struct snd_ctl_elem_value *ucontrol) |
| 102 | { |
| 103 | struct snd_pcsp *chip = snd_kcontrol_chip(kcontrol); |
| 104 | int changed = 0; |
| 105 | int spkr = ucontrol->value.integer.value[0]; |
| 106 | if (spkr != chip->pcspkr) { |
| 107 | chip->pcspkr = spkr; |
| 108 | changed = 1; |
| 109 | } |
| 110 | return changed; |
| 111 | } |
| 112 | |
| 113 | #define PCSP_MIXER_CONTROL(ctl_type, ctl_name) \ |
| 114 | { \ |
| 115 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ |
| 116 | .name = ctl_name, \ |
| 117 | .info = pcsp_##ctl_type##_info, \ |
| 118 | .get = pcsp_##ctl_type##_get, \ |
| 119 | .put = pcsp_##ctl_type##_put, \ |
| 120 | } |
| 121 | |
| 122 | static struct snd_kcontrol_new __devinitdata snd_pcsp_controls[] = { |
| 123 | PCSP_MIXER_CONTROL(enable, "Master Playback Switch"), |
| 124 | PCSP_MIXER_CONTROL(treble, "BaseFRQ Playback Volume"), |
| 125 | PCSP_MIXER_CONTROL(pcspkr, "PC Speaker Playback Switch"), |
| 126 | }; |
| 127 | |
| 128 | int __devinit snd_pcsp_new_mixer(struct snd_pcsp *chip) |
| 129 | { |
| 130 | struct snd_card *card = chip->card; |
| 131 | int i, err; |
| 132 | |
| 133 | for (i = 0; i < ARRAY_SIZE(snd_pcsp_controls); i++) { |
| 134 | err = snd_ctl_add(card, |
| 135 | snd_ctl_new1(snd_pcsp_controls + i, |
| 136 | chip)); |
| 137 | if (err < 0) |
| 138 | return err; |
| 139 | } |
| 140 | |
| 141 | strcpy(card->mixername, "PC-Speaker"); |
| 142 | |
| 143 | return 0; |
| 144 | } |