kernel/sound/usb/line6/podhd.c

   1 /*
   2  * Line 6 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 <linux/usb.h>
  13 #include <linux/slab.h>
  14 #include <linux/module.h>
  15 #include <sound/core.h>
  16 #include <sound/pcm.h>
  17
  18 #include "driver.h"
  19 #include "pcm.h"
  20
  21 enum {
  22         LINE6_PODHD300,
  23         LINE6_PODHD400,
  24         LINE6_PODHD500_0,
  25         LINE6_PODHD500_1,
  26 };
  27
  28 #define PODHD_BYTES_PER_FRAME 6 /* 24bit audio (stereo) */
  29
  30 static struct snd_ratden podhd_ratden = {
  31         .num_min = 48000,
  32         .num_max = 48000,
  33         .num_step = 1,
  34         .den = 1,
  35 };
  36
  37 static struct line6_pcm_properties podhd_pcm_properties = {
  38         .playback_hw = {
  39                                   .info = (SNDRV_PCM_INFO_MMAP |
  40                                            SNDRV_PCM_INFO_INTERLEAVED |
  41                                            SNDRV_PCM_INFO_BLOCK_TRANSFER |
  42                                            SNDRV_PCM_INFO_MMAP_VALID |
  43                                            SNDRV_PCM_INFO_PAUSE |
  44                                            SNDRV_PCM_INFO_SYNC_START),
  45                                   .formats = SNDRV_PCM_FMTBIT_S24_3LE,
  46                                   .rates = SNDRV_PCM_RATE_48000,
  47                                   .rate_min = 48000,
  48                                   .rate_max = 48000,
  49                                   .channels_min = 2,
  50                                   .channels_max = 2,
  51                                   .buffer_bytes_max = 60000,
  52                                   .period_bytes_min = 64,
  53                                   .period_bytes_max = 8192,
  54                                   .periods_min = 1,
  55                                   .periods_max = 1024},
  56         .capture_hw = {
  57                                  .info = (SNDRV_PCM_INFO_MMAP |
  58                                           SNDRV_PCM_INFO_INTERLEAVED |
  59                                           SNDRV_PCM_INFO_BLOCK_TRANSFER |
  60                                           SNDRV_PCM_INFO_MMAP_VALID |
  61                                           SNDRV_PCM_INFO_SYNC_START),
  62                                  .formats = SNDRV_PCM_FMTBIT_S24_3LE,
  63                                  .rates = SNDRV_PCM_RATE_48000,
  64                                  .rate_min = 48000,
  65                                  .rate_max = 48000,
  66                                  .channels_min = 2,
  67                                  .channels_max = 2,
  68                                  .buffer_bytes_max = 60000,
  69                                  .period_bytes_min = 64,
  70                                  .period_bytes_max = 8192,
  71                                  .periods_min = 1,
  72                                  .periods_max = 1024},
  73         .rates = {
  74                             .nrats = 1,
  75                             .rats = &podhd_ratden},
  76         .bytes_per_frame = PODHD_BYTES_PER_FRAME
  77 };
  78
  79 /*
  80         Try to init POD HD device.
  81 */
  82 static int podhd_init(struct usb_line6 *line6,
  83                       const struct usb_device_id *id)
  84 {
  85         int err;
  86
  87         /* initialize MIDI subsystem: */
  88         err = line6_init_midi(line6);
  89         if (err < 0)
  90                 return err;
  91
  92         /* initialize PCM subsystem: */
  93         err = line6_init_pcm(line6, &podhd_pcm_properties);
  94         if (err < 0)
  95                 return err;
  96
  97         /* register USB audio system: */
  98         return snd_card_register(line6->card);
  99 }
 100
 101 #define LINE6_DEVICE(prod) USB_DEVICE(0x0e41, prod)
 102 #define LINE6_IF_NUM(prod, n) USB_DEVICE_INTERFACE_NUMBER(0x0e41, prod, n)
 103
 104 /* table of devices that work with this driver */
 105 static const struct usb_device_id podhd_id_table[] = {
 106         { LINE6_DEVICE(0x5057),    .driver_info = LINE6_PODHD300 },
 107         { LINE6_DEVICE(0x5058),    .driver_info = LINE6_PODHD400 },
 108         { LINE6_IF_NUM(0x414D, 0), .driver_info = LINE6_PODHD500_0 },
 109         { LINE6_IF_NUM(0x414D, 1), .driver_info = LINE6_PODHD500_1 },
 110         {}
 111 };
 112
 113 MODULE_DEVICE_TABLE(usb, podhd_id_table);
 114
 115 static const struct line6_properties podhd_properties_table[] = {
 116         [LINE6_PODHD300] = {
 117                 .id = "PODHD300",
 118                 .name = "POD HD300",
 119                 .capabilities   = LINE6_CAP_CONTROL
 120                                 | LINE6_CAP_PCM
 121                                 | LINE6_CAP_HWMON,
 122                 .altsetting = 5,
 123                 .ep_ctrl_r = 0x84,
 124                 .ep_ctrl_w = 0x03,
 125                 .ep_audio_r = 0x82,
 126                 .ep_audio_w = 0x01,
 127         },
 128         [LINE6_PODHD400] = {
 129                 .id = "PODHD400",
 130                 .name = "POD HD400",
 131                 .capabilities   = LINE6_CAP_CONTROL
 132                                 | LINE6_CAP_PCM
 133                                 | LINE6_CAP_HWMON,
 134                 .altsetting = 5,
 135                 .ep_ctrl_r = 0x84,
 136                 .ep_ctrl_w = 0x03,
 137                 .ep_audio_r = 0x82,
 138                 .ep_audio_w = 0x01,
 139         },
 140         [LINE6_PODHD500_0] = {
 141                 .id = "PODHD500",
 142                 .name = "POD HD500",
 143                 .capabilities   = LINE6_CAP_CONTROL
 144                                 | LINE6_CAP_PCM
 145                                 | LINE6_CAP_HWMON,
 146                 .altsetting = 1,
 147                 .ep_ctrl_r = 0x81,
 148                 .ep_ctrl_w = 0x01,
 149                 .ep_audio_r = 0x86,
 150                 .ep_audio_w = 0x02,
 151         },
 152         [LINE6_PODHD500_1] = {
 153                 .id = "PODHD500",
 154                 .name = "POD HD500",
 155                 .capabilities   = LINE6_CAP_CONTROL
 156                                 | LINE6_CAP_PCM
 157                                 | LINE6_CAP_HWMON,
 158                 .altsetting = 1,
 159                 .ep_ctrl_r = 0x81,
 160                 .ep_ctrl_w = 0x01,
 161                 .ep_audio_r = 0x86,
 162                 .ep_audio_w = 0x02,
 163         },
 164 };
 165
 166 /*
 167         Probe USB device.
 168 */
 169 static int podhd_probe(struct usb_interface *interface,
 170                        const struct usb_device_id *id)
 171 {
 172         return line6_probe(interface, id, "Line6-PODHD",
 173                            &podhd_properties_table[id->driver_info],
 174                            podhd_init, sizeof(struct usb_line6));
 175 }
 176
 177 static struct usb_driver podhd_driver = {
 178         .name = KBUILD_MODNAME,
 179         .probe = podhd_probe,
 180         .disconnect = line6_disconnect,
 181 #ifdef CONFIG_PM
 182         .suspend = line6_suspend,
 183         .resume = line6_resume,
 184         .reset_resume = line6_resume,
 185 #endif
 186         .id_table = podhd_id_table,
 187 };
 188
 189 module_usb_driver(podhd_driver);
 190
 191 MODULE_DESCRIPTION("Line 6 PODHD USB driver");
 192 MODULE_LICENSE("GPL");