| /* |
| * oxfw.c - a part of driver for OXFW970/971 based devices |
| * |
| * Copyright (c) Clemens Ladisch <clemens@ladisch.de> |
| * Licensed under the terms of the GNU General Public License, version 2. |
| */ |
| |
| #include "oxfw.h" |
| |
| #define OXFORD_FIRMWARE_ID_ADDRESS (CSR_REGISTER_BASE + 0x50000) |
| /* 0x970?vvvv or 0x971?vvvv, where vvvv = firmware version */ |
| |
| #define OXFORD_HARDWARE_ID_ADDRESS (CSR_REGISTER_BASE + 0x90020) |
| #define OXFORD_HARDWARE_ID_OXFW970 0x39443841 |
| #define OXFORD_HARDWARE_ID_OXFW971 0x39373100 |
| |
| #define VENDOR_GRIFFIN 0x001292 |
| #define VENDOR_LACIE 0x00d04b |
| |
| #define SPECIFIER_1394TA 0x00a02d |
| #define VERSION_AVC 0x010001 |
| |
| MODULE_DESCRIPTION("Oxford Semiconductor FW970/971 driver"); |
| MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); |
| MODULE_LICENSE("GPL v2"); |
| MODULE_ALIAS("snd-firewire-speakers"); |
| |
| static u32 oxfw_read_firmware_version(struct fw_unit *unit) |
| { |
| __be32 data; |
| int err; |
| |
| err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST, |
| OXFORD_FIRMWARE_ID_ADDRESS, &data, 4, 0); |
| return err >= 0 ? be32_to_cpu(data) : 0; |
| } |
| |
| static void oxfw_card_free(struct snd_card *card) |
| { |
| struct snd_oxfw *oxfw = card->private_data; |
| |
| mutex_destroy(&oxfw->mutex); |
| } |
| |
| static int oxfw_probe(struct fw_unit *unit, |
| const struct ieee1394_device_id *id) |
| { |
| struct fw_device *fw_dev = fw_parent_device(unit); |
| struct snd_card *card; |
| struct snd_oxfw *oxfw; |
| u32 firmware; |
| int err; |
| |
| err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE, |
| sizeof(*oxfw), &card); |
| if (err < 0) |
| return err; |
| |
| card->private_free = oxfw_card_free; |
| oxfw = card->private_data; |
| oxfw->card = card; |
| mutex_init(&oxfw->mutex); |
| oxfw->unit = unit; |
| oxfw->device_info = (const struct device_info *)id->driver_data; |
| |
| strcpy(card->driver, oxfw->device_info->driver_name); |
| strcpy(card->shortname, oxfw->device_info->short_name); |
| firmware = oxfw_read_firmware_version(unit); |
| snprintf(card->longname, sizeof(card->longname), |
| "%s (OXFW%x %04x), GUID %08x%08x at %s, S%d", |
| oxfw->device_info->long_name, |
| firmware >> 20, firmware & 0xffff, |
| fw_dev->config_rom[3], fw_dev->config_rom[4], |
| dev_name(&unit->device), 100 << fw_dev->max_speed); |
| strcpy(card->mixername, "OXFW"); |
| |
| err = snd_oxfw_create_pcm(oxfw); |
| if (err < 0) |
| goto error; |
| |
| err = snd_oxfw_create_mixer(oxfw); |
| if (err < 0) |
| goto error; |
| |
| err = snd_oxfw_stream_init_simplex(oxfw); |
| if (err < 0) |
| goto error; |
| |
| err = snd_card_register(card); |
| if (err < 0) { |
| snd_oxfw_stream_destroy_simplex(oxfw); |
| goto error; |
| } |
| dev_set_drvdata(&unit->device, oxfw); |
| |
| return 0; |
| error: |
| snd_card_free(card); |
| return err; |
| } |
| |
| static void oxfw_bus_reset(struct fw_unit *unit) |
| { |
| struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device); |
| |
| fcp_bus_reset(oxfw->unit); |
| |
| mutex_lock(&oxfw->mutex); |
| snd_oxfw_stream_update_simplex(oxfw); |
| mutex_unlock(&oxfw->mutex); |
| } |
| |
| static void oxfw_remove(struct fw_unit *unit) |
| { |
| struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device); |
| |
| snd_card_disconnect(oxfw->card); |
| |
| snd_oxfw_stream_destroy_simplex(oxfw); |
| |
| snd_card_free_when_closed(oxfw->card); |
| } |
| |
| static const struct device_info griffin_firewave = { |
| .driver_name = "FireWave", |
| .short_name = "FireWave", |
| .long_name = "Griffin FireWave Surround", |
| .pcm_constraints = firewave_constraints, |
| .mixer_channels = 6, |
| .mute_fb_id = 0x01, |
| .volume_fb_id = 0x02, |
| }; |
| |
| static const struct device_info lacie_speakers = { |
| .driver_name = "FWSpeakers", |
| .short_name = "FireWire Speakers", |
| .long_name = "LaCie FireWire Speakers", |
| .pcm_constraints = lacie_speakers_constraints, |
| .mixer_channels = 1, |
| .mute_fb_id = 0x01, |
| .volume_fb_id = 0x01, |
| }; |
| |
| static const struct ieee1394_device_id oxfw_id_table[] = { |
| { |
| .match_flags = IEEE1394_MATCH_VENDOR_ID | |
| IEEE1394_MATCH_MODEL_ID | |
| IEEE1394_MATCH_SPECIFIER_ID | |
| IEEE1394_MATCH_VERSION, |
| .vendor_id = VENDOR_GRIFFIN, |
| .model_id = 0x00f970, |
| .specifier_id = SPECIFIER_1394TA, |
| .version = VERSION_AVC, |
| .driver_data = (kernel_ulong_t)&griffin_firewave, |
| }, |
| { |
| .match_flags = IEEE1394_MATCH_VENDOR_ID | |
| IEEE1394_MATCH_MODEL_ID | |
| IEEE1394_MATCH_SPECIFIER_ID | |
| IEEE1394_MATCH_VERSION, |
| .vendor_id = VENDOR_LACIE, |
| .model_id = 0x00f970, |
| .specifier_id = SPECIFIER_1394TA, |
| .version = VERSION_AVC, |
| .driver_data = (kernel_ulong_t)&lacie_speakers, |
| }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(ieee1394, oxfw_id_table); |
| |
| static struct fw_driver oxfw_driver = { |
| .driver = { |
| .owner = THIS_MODULE, |
| .name = KBUILD_MODNAME, |
| .bus = &fw_bus_type, |
| }, |
| .probe = oxfw_probe, |
| .update = oxfw_bus_reset, |
| .remove = oxfw_remove, |
| .id_table = oxfw_id_table, |
| }; |
| |
| static int __init snd_oxfw_init(void) |
| { |
| return driver_register(&oxfw_driver.driver); |
| } |
| |
| static void __exit snd_oxfw_exit(void) |
| { |
| driver_unregister(&oxfw_driver.driver); |
| } |
| |
| module_init(snd_oxfw_init); |
| module_exit(snd_oxfw_exit); |