projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 16dc1040 SH |
1 | /* |
| 2 | * Line6 Pod HD | |
| 3 | * | |
| 4 | * Copyright (C) 2011 Stefan Hajnoczi <stefanha@gmail.com> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or | |
| 7 | * modify it under the terms of the GNU General Public License as | |
| 8 | * published by the Free Software Foundation, version 2. | |
| 9 | * | |
| 10 | */ | |
| 11 | ||
| 12 | #include <sound/core.h> | |
| 13 | #include <sound/pcm.h> | |
| 14 | ||
| 15 | #include "audio.h" | |
| 16 | #include "driver.h" | |
| 17 | #include "pcm.h" | |
| 18 | #include "podhd.h" | |
| 19 | ||
| 20 | #define PODHD_BYTES_PER_FRAME 6 /* 24bit audio (stereo) */ | |
| 21 | ||
| 22 | static struct snd_ratden podhd_ratden = { | |
| 23 | .num_min = 48000, | |
| 24 | .num_max = 48000, | |
| 25 | .num_step = 1, | |
| 26 | .den = 1, | |
| 27 | }; | |
| 28 | ||
| 29 | static struct line6_pcm_properties podhd_pcm_properties = { | |
| 30 | .snd_line6_playback_hw = { | |
| 31 | .info = (SNDRV_PCM_INFO_MMAP | | |
| 32 | SNDRV_PCM_INFO_INTERLEAVED | | |
| 33 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
| 34 | SNDRV_PCM_INFO_MMAP_VALID | | |
| 35 | SNDRV_PCM_INFO_PAUSE | | |
| 36 | #ifdef CONFIG_PM | |
| 37 | SNDRV_PCM_INFO_RESUME | | |
| 38 | #endif | |
| 39 | SNDRV_PCM_INFO_SYNC_START), | |
| 40 | .formats = SNDRV_PCM_FMTBIT_S24_3LE, | |
| 41 | .rates = SNDRV_PCM_RATE_48000, | |
| 42 | .rate_min = 48000, | |
| 43 | .rate_max = 48000, | |
| 44 | .channels_min = 2, | |
| 45 | .channels_max = 2, | |
| 46 | .buffer_bytes_max = 60000, | |
| 47 | .period_bytes_min = 64, | |
| 48 | .period_bytes_max = 8192, | |
| 49 | .periods_min = 1, | |
| 50 | .periods_max = 1024}, | |
| 51 | .snd_line6_capture_hw = { | |
| 52 | .info = (SNDRV_PCM_INFO_MMAP | | |
| 53 | SNDRV_PCM_INFO_INTERLEAVED | | |
| 54 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
| 55 | SNDRV_PCM_INFO_MMAP_VALID | | |
| 56 | #ifdef CONFIG_PM | |
| 57 | SNDRV_PCM_INFO_RESUME | | |
| 58 | #endif | |
| 59 | SNDRV_PCM_INFO_SYNC_START), | |
| 60 | .formats = SNDRV_PCM_FMTBIT_S24_3LE, | |
| 61 | .rates = SNDRV_PCM_RATE_48000, | |
| 62 | .rate_min = 48000, | |
| 63 | .rate_max = 48000, | |
| 64 | .channels_min = 2, | |
| 65 | .channels_max = 2, | |
| 66 | .buffer_bytes_max = 60000, | |
| 67 | .period_bytes_min = 64, | |
| 68 | .period_bytes_max = 8192, | |
| 69 | .periods_min = 1, | |
| 70 | .periods_max = 1024}, | |
| 71 | .snd_line6_rates = { | |
| 72 | .nrats = 1, | |
| 73 | .rats = &podhd_ratden}, | |
| 74 | .bytes_per_frame = PODHD_BYTES_PER_FRAME | |
| 75 | }; | |
| 76 | ||
| 77 | /* | |
| 78 | POD HD destructor. | |
| 79 | */ | |
| 80 | static void podhd_destruct(struct usb_interface *interface) | |
| 81 | { | |
| 82 | struct usb_line6_podhd *podhd = usb_get_intfdata(interface); | |
| 16dc1040 SH |
83 | |
| 84 | if (podhd == NULL) | |
| 85 | return; | |
| 188e6645 | 86 | line6_cleanup_audio(&podhd->line6); |
| 16dc1040 SH |
87 | } |
| 88 | ||
| 89 | /* | |
| 90 | Try to init POD HD device. | |
| 91 | */ | |
| 92 | static int podhd_try_init(struct usb_interface *interface, | |
| 93 | struct usb_line6_podhd *podhd) | |
| 94 | { | |
| 95 | int err; | |
| 96 | struct usb_line6 *line6 = &podhd->line6; | |
| 97 | ||
| 98 | if ((interface == NULL) || (podhd == NULL)) | |
| 99 | return -ENODEV; | |
| 100 | ||
| 101 | /* initialize audio system: */ | |
| 102 | err = line6_init_audio(line6); | |
| 103 | if (err < 0) | |
| 104 | return err; | |
| 105 | ||
| 106 | /* initialize MIDI subsystem: */ | |
| 107 | err = line6_init_midi(line6); | |
| 108 | if (err < 0) | |
| 109 | return err; | |
| 110 | ||
| 111 | /* initialize PCM subsystem: */ | |
| 112 | err = line6_init_pcm(line6, &podhd_pcm_properties); | |
| 113 | if (err < 0) | |
| 114 | return err; | |
| 115 | ||
| 116 | /* register USB audio system: */ | |
| 117 | err = line6_register_audio(line6); | |
| 118 | return err; | |
| 119 | } | |
| 120 | ||
| 121 | /* | |
| 122 | Init POD HD device (and clean up in case of failure). | |
| 123 | */ | |
| 124 | int line6_podhd_init(struct usb_interface *interface, | |
| 125 | struct usb_line6_podhd *podhd) | |
| 126 | { | |
| 127 | int err = podhd_try_init(interface, podhd); | |
| 128 | ||
| 129 | if (err < 0) | |
| 130 | podhd_destruct(interface); | |
| 131 | ||
| 132 | return err; | |
| 133 | } | |
| 134 | ||
| 135 | /* | |
| 136 | POD HD device disconnected. | |
| 137 | */ | |
| 138 | void line6_podhd_disconnect(struct usb_interface *interface) | |
| 139 | { | |
| 140 | struct usb_line6_podhd *podhd; | |
| 141 | ||
| 142 | if (interface == NULL) | |
| 143 | return; | |
| 144 | podhd = usb_get_intfdata(interface); | |
| 145 | ||
| 146 | if (podhd != NULL) { | |
| 147 | struct snd_line6_pcm *line6pcm = podhd->line6.line6pcm; | |
| 148 | ||
| 149 | if (line6pcm != NULL) | |
| 150 | line6_pcm_disconnect(line6pcm); | |
| 151 | } | |
| 152 | ||
| 153 | podhd_destruct(interface); | |
| 154 | } |