sound/firewire/oxfw/oxfw.c

   1 /*
   2  * oxfw.c - a part of driver for OXFW970/971 based devices
   3  *
   4  * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
   5  * Licensed under the terms of the GNU General Public License, version 2.
   6  */
   7
   8 #include "oxfw.h"
   9
  10 #define OXFORD_FIRMWARE_ID_ADDRESS      (CSR_REGISTER_BASE + 0x50000)
  11 /* 0x970?vvvv or 0x971?vvvv, where vvvv = firmware version */
  12
  13 #define OXFORD_HARDWARE_ID_ADDRESS      (CSR_REGISTER_BASE + 0x90020)
  14 #define OXFORD_HARDWARE_ID_OXFW970      0x39443841
  15 #define OXFORD_HARDWARE_ID_OXFW971      0x39373100
  16
  17 #define VENDOR_GRIFFIN          0x001292
  18 #define VENDOR_LACIE            0x00d04b
  19
  20 #define SPECIFIER_1394TA        0x00a02d
  21 #define VERSION_AVC             0x010001
  22
  23 MODULE_DESCRIPTION("Oxford Semiconductor FW970/971 driver");
  24 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
  25 MODULE_LICENSE("GPL v2");
  26 MODULE_ALIAS("snd-firewire-speakers");
  27
  28 static int name_card(struct snd_oxfw *oxfw)
  29 {
  30         struct fw_device *fw_dev = fw_parent_device(oxfw->unit);
  31         const char *d, *v, *m;
  32         u32 firmware;
  33         int err;
  34
  35         err = snd_fw_transaction(oxfw->unit, TCODE_READ_QUADLET_REQUEST,
  36                                  OXFORD_FIRMWARE_ID_ADDRESS, &firmware, 4, 0);
  37         if (err < 0)
  38                 goto end;
  39         be32_to_cpus(&firmware);
  40
  41         d = oxfw->device_info->driver_name;
  42         v = oxfw->device_info->vendor_name;
  43         m = oxfw->device_info->model_name;
  44
  45         strcpy(oxfw->card->driver, d);
  46         strcpy(oxfw->card->mixername, m);
  47         strcpy(oxfw->card->shortname, m);
  48
  49         snprintf(oxfw->card->longname, sizeof(oxfw->card->longname),
  50                  "%s %s (OXFW%x %04x), GUID %08x%08x at %s, S%d",
  51                  v, m, firmware >> 20, firmware & 0xffff,
  52                  fw_dev->config_rom[3], fw_dev->config_rom[4],
  53                  dev_name(&oxfw->unit->device), 100 << fw_dev->max_speed);
  54 end:
  55         return err;
  56 }
  57
  58 static void oxfw_card_free(struct snd_card *card)
  59 {
  60         struct snd_oxfw *oxfw = card->private_data;
  61
  62         mutex_destroy(&oxfw->mutex);
  63 }
  64
  65 static int oxfw_probe(struct fw_unit *unit,
  66                        const struct ieee1394_device_id *id)
  67 {
  68         struct snd_card *card;
  69         struct snd_oxfw *oxfw;
  70         int err;
  71
  72         err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE,
  73                            sizeof(*oxfw), &card);
  74         if (err < 0)
  75                 return err;
  76
  77         card->private_free = oxfw_card_free;
  78         oxfw = card->private_data;
  79         oxfw->card = card;
  80         mutex_init(&oxfw->mutex);
  81         oxfw->unit = unit;
  82         oxfw->device_info = (const struct device_info *)id->driver_data;
  83
  84         err = name_card(oxfw);
  85         if (err < 0)
  86                 goto error;
  87
  88         err = snd_oxfw_create_pcm(oxfw);
  89         if (err < 0)
  90                 goto error;
  91
  92         err = snd_oxfw_create_mixer(oxfw);
  93         if (err < 0)
  94                 goto error;
  95
  96         err = snd_oxfw_stream_init_simplex(oxfw);
  97         if (err < 0)
  98                 goto error;
  99
 100         err = snd_card_register(card);
 101         if (err < 0) {
 102                 snd_oxfw_stream_destroy_simplex(oxfw);
 103                 goto error;
 104         }
 105         dev_set_drvdata(&unit->device, oxfw);
 106
 107         return 0;
 108 error:
 109         snd_card_free(card);
 110         return err;
 111 }
 112
 113 static void oxfw_bus_reset(struct fw_unit *unit)
 114 {
 115         struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device);
 116
 117         fcp_bus_reset(oxfw->unit);
 118
 119         mutex_lock(&oxfw->mutex);
 120         snd_oxfw_stream_update_simplex(oxfw);
 121         mutex_unlock(&oxfw->mutex);
 122 }
 123
 124 static void oxfw_remove(struct fw_unit *unit)
 125 {
 126         struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device);
 127
 128         snd_card_disconnect(oxfw->card);
 129
 130         snd_oxfw_stream_destroy_simplex(oxfw);
 131
 132         snd_card_free_when_closed(oxfw->card);
 133 }
 134
 135 static const struct device_info griffin_firewave = {
 136         .driver_name = "FireWave",
 137         .vendor_name = "Griffin",
 138         .model_name = "FireWave",
 139         .pcm_constraints = firewave_constraints,
 140         .mixer_channels = 6,
 141         .mute_fb_id   = 0x01,
 142         .volume_fb_id = 0x02,
 143 };
 144
 145 static const struct device_info lacie_speakers = {
 146         .driver_name = "FWSpeakers",
 147         .vendor_name = "LaCie",
 148         .model_name = "FireWire Speakers",
 149         .pcm_constraints = lacie_speakers_constraints,
 150         .mixer_channels = 1,
 151         .mute_fb_id   = 0x01,
 152         .volume_fb_id = 0x01,
 153 };
 154
 155 static const struct ieee1394_device_id oxfw_id_table[] = {
 156         {
 157                 .match_flags  = IEEE1394_MATCH_VENDOR_ID |
 158                                 IEEE1394_MATCH_MODEL_ID |
 159                                 IEEE1394_MATCH_SPECIFIER_ID |
 160                                 IEEE1394_MATCH_VERSION,
 161                 .vendor_id    = VENDOR_GRIFFIN,
 162                 .model_id     = 0x00f970,
 163                 .specifier_id = SPECIFIER_1394TA,
 164                 .version      = VERSION_AVC,
 165                 .driver_data  = (kernel_ulong_t)&griffin_firewave,
 166         },
 167         {
 168                 .match_flags  = IEEE1394_MATCH_VENDOR_ID |
 169                                 IEEE1394_MATCH_MODEL_ID |
 170                                 IEEE1394_MATCH_SPECIFIER_ID |
 171                                 IEEE1394_MATCH_VERSION,
 172                 .vendor_id    = VENDOR_LACIE,
 173                 .model_id     = 0x00f970,
 174                 .specifier_id = SPECIFIER_1394TA,
 175                 .version      = VERSION_AVC,
 176                 .driver_data  = (kernel_ulong_t)&lacie_speakers,
 177         },
 178         { }
 179 };
 180 MODULE_DEVICE_TABLE(ieee1394, oxfw_id_table);
 181
 182 static struct fw_driver oxfw_driver = {
 183         .driver   = {
 184                 .owner  = THIS_MODULE,
 185                 .name   = KBUILD_MODNAME,
 186                 .bus    = &fw_bus_type,
 187         },
 188         .probe    = oxfw_probe,
 189         .update   = oxfw_bus_reset,
 190         .remove   = oxfw_remove,
 191         .id_table = oxfw_id_table,
 192 };
 193
 194 static int __init snd_oxfw_init(void)
 195 {
 196         return driver_register(&oxfw_driver.driver);
 197 }
 198
 199 static void __exit snd_oxfw_exit(void)
 200 {
 201         driver_unregister(&oxfw_driver.driver);
 202 }
 203
 204 module_init(snd_oxfw_init);
 205 module_exit(snd_oxfw_exit);