2 * oxfw.c - a part of driver for OXFW970/971 based devices
4 * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
5 * Licensed under the terms of the GNU General Public License, version 2.
10 #define OXFORD_FIRMWARE_ID_ADDRESS (CSR_REGISTER_BASE + 0x50000)
11 /* 0x970?vvvv or 0x971?vvvv, where vvvv = firmware version */
13 #define OXFORD_HARDWARE_ID_ADDRESS (CSR_REGISTER_BASE + 0x90020)
14 #define OXFORD_HARDWARE_ID_OXFW970 0x39443841
15 #define OXFORD_HARDWARE_ID_OXFW971 0x39373100
17 #define VENDOR_GRIFFIN 0x001292
18 #define VENDOR_LACIE 0x00d04b
20 #define SPECIFIER_1394TA 0x00a02d
21 #define VERSION_AVC 0x010001
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");
28 static int name_card(struct snd_oxfw *oxfw)
30 struct fw_device *fw_dev = fw_parent_device(oxfw->unit);
31 const char *d, *v, *m;
35 err = snd_fw_transaction(oxfw->unit, TCODE_READ_QUADLET_REQUEST,
36 OXFORD_FIRMWARE_ID_ADDRESS, &firmware, 4, 0);
39 be32_to_cpus(&firmware);
41 d = oxfw->device_info->driver_name;
42 v = oxfw->device_info->vendor_name;
43 m = oxfw->device_info->model_name;
45 strcpy(oxfw->card->driver, d);
46 strcpy(oxfw->card->mixername, m);
47 strcpy(oxfw->card->shortname, m);
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);
58 static void oxfw_card_free(struct snd_card *card)
60 struct snd_oxfw *oxfw = card->private_data;
63 for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++)
64 kfree(oxfw->rx_stream_formats[i]);
66 mutex_destroy(&oxfw->mutex);
69 static int oxfw_probe(struct fw_unit *unit,
70 const struct ieee1394_device_id *id)
72 struct snd_card *card;
73 struct snd_oxfw *oxfw;
76 err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE,
77 sizeof(*oxfw), &card);
81 card->private_free = oxfw_card_free;
82 oxfw = card->private_data;
84 mutex_init(&oxfw->mutex);
86 oxfw->device_info = (const struct device_info *)id->driver_data;
88 err = snd_oxfw_stream_discover(oxfw);
92 err = name_card(oxfw);
96 err = snd_oxfw_create_pcm(oxfw);
100 err = snd_oxfw_create_mixer(oxfw);
104 snd_oxfw_proc_init(oxfw);
106 err = snd_oxfw_stream_init_simplex(oxfw);
110 err = snd_card_register(card);
112 snd_oxfw_stream_destroy_simplex(oxfw);
115 dev_set_drvdata(&unit->device, oxfw);
123 static void oxfw_bus_reset(struct fw_unit *unit)
125 struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device);
127 fcp_bus_reset(oxfw->unit);
129 mutex_lock(&oxfw->mutex);
130 snd_oxfw_stream_update_simplex(oxfw);
131 mutex_unlock(&oxfw->mutex);
134 static void oxfw_remove(struct fw_unit *unit)
136 struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device);
138 snd_card_disconnect(oxfw->card);
140 snd_oxfw_stream_destroy_simplex(oxfw);
142 snd_card_free_when_closed(oxfw->card);
145 static const struct device_info griffin_firewave = {
146 .driver_name = "FireWave",
147 .vendor_name = "Griffin",
148 .model_name = "FireWave",
151 .volume_fb_id = 0x02,
154 static const struct device_info lacie_speakers = {
155 .driver_name = "FWSpeakers",
156 .vendor_name = "LaCie",
157 .model_name = "FireWire Speakers",
160 .volume_fb_id = 0x01,
163 static const struct ieee1394_device_id oxfw_id_table[] = {
165 .match_flags = IEEE1394_MATCH_VENDOR_ID |
166 IEEE1394_MATCH_MODEL_ID |
167 IEEE1394_MATCH_SPECIFIER_ID |
168 IEEE1394_MATCH_VERSION,
169 .vendor_id = VENDOR_GRIFFIN,
170 .model_id = 0x00f970,
171 .specifier_id = SPECIFIER_1394TA,
172 .version = VERSION_AVC,
173 .driver_data = (kernel_ulong_t)&griffin_firewave,
176 .match_flags = IEEE1394_MATCH_VENDOR_ID |
177 IEEE1394_MATCH_MODEL_ID |
178 IEEE1394_MATCH_SPECIFIER_ID |
179 IEEE1394_MATCH_VERSION,
180 .vendor_id = VENDOR_LACIE,
181 .model_id = 0x00f970,
182 .specifier_id = SPECIFIER_1394TA,
183 .version = VERSION_AVC,
184 .driver_data = (kernel_ulong_t)&lacie_speakers,
188 MODULE_DEVICE_TABLE(ieee1394, oxfw_id_table);
190 static struct fw_driver oxfw_driver = {
192 .owner = THIS_MODULE,
193 .name = KBUILD_MODNAME,
197 .update = oxfw_bus_reset,
198 .remove = oxfw_remove,
199 .id_table = oxfw_id_table,
202 static int __init snd_oxfw_init(void)
204 return driver_register(&oxfw_driver.driver);
207 static void __exit snd_oxfw_exit(void)
209 driver_unregister(&oxfw_driver.driver);
212 module_init(snd_oxfw_init);
213 module_exit(snd_oxfw_exit);