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/*
* 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_LOUD 0x000ff2
#define VENDOR_GRIFFIN 0x001292
#define VENDOR_BEHRINGER 0x001564
#define VENDOR_LACIE 0x00d04b
#define VENDOR_TASCAM 0x00022e
#define OUI_STANTON 0x001260
#define MODEL_SATELLITE 0x00200f
#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");
MODULE_ALIAS("snd-scs1x");
struct compat_info {
const char *driver_name;
const char *vendor_name;
const char *model_name;
};
static bool detect_loud_models(struct fw_unit *unit)
{
const char *const models[] = {
"Onyxi",
"Onyx-i",
"Onyx 1640i",
"d.Pro",
"Mackie Onyx Satellite",
"Tapco LINK.firewire 4x6",
"U.420"};
char model[32];
unsigned int i;
int err;
err = fw_csr_string(unit->directory, CSR_MODEL,
model, sizeof(model));
if (err < 0)
return false;
for (i = 0; i < ARRAY_SIZE(models); i++) {
if (strcmp(models[i], model) == 0)
break;
}
return (i < ARRAY_SIZE(models));
}
static int name_card(struct snd_oxfw *oxfw)
{
struct fw_device *fw_dev = fw_parent_device(oxfw->unit);
const struct compat_info *info;
char vendor[24];
char model[32];
const char *d, *v, *m;
u32 firmware;
int err;
/* get vendor name from root directory */
err = fw_csr_string(fw_dev->config_rom + 5, CSR_VENDOR,
vendor, sizeof(vendor));
if (err < 0)
goto end;
/* get model name from unit directory */
err = fw_csr_string(oxfw->unit->directory, CSR_MODEL,
model, sizeof(model));
if (err < 0)
goto end;
err = snd_fw_transaction(oxfw->unit, TCODE_READ_QUADLET_REQUEST,
OXFORD_FIRMWARE_ID_ADDRESS, &firmware, 4, 0);
if (err < 0)
goto end;
be32_to_cpus(&firmware);
/* to apply card definitions */
if (oxfw->entry->vendor_id == VENDOR_GRIFFIN ||
oxfw->entry->vendor_id == VENDOR_LACIE) {
info = (const struct compat_info *)oxfw->entry->driver_data;
d = info->driver_name;
v = info->vendor_name;
m = info->model_name;
} else {
d = "OXFW";
v = vendor;
m = model;
}
strcpy(oxfw->card->driver, d);
strcpy(oxfw->card->mixername, m);
strcpy(oxfw->card->shortname, m);
snprintf(oxfw->card->longname, sizeof(oxfw->card->longname),
"%s %s (OXFW%x %04x), GUID %08x%08x at %s, S%d",
v, m, firmware >> 20, firmware & 0xffff,
fw_dev->config_rom[3], fw_dev->config_rom[4],
dev_name(&oxfw->unit->device), 100 << fw_dev->max_speed);
end:
return err;
}
static void oxfw_free(struct snd_oxfw *oxfw)
{
unsigned int i;
snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream);
if (oxfw->has_output)
snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream);
fw_unit_put(oxfw->unit);
for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) {
kfree(oxfw->tx_stream_formats[i]);
kfree(oxfw->rx_stream_formats[i]);
}
kfree(oxfw->spec);
mutex_destroy(&oxfw->mutex);
}
/*
* This module releases the FireWire unit data after all ALSA character devices
* are released by applications. This is for releasing stream data or finishing
* transactions safely. Thus at returning from .remove(), this module still keep
* references for the unit.
*/
static void oxfw_card_free(struct snd_card *card)
{
oxfw_free(card->private_data);
}
static int detect_quirks(struct snd_oxfw *oxfw)
{
struct fw_device *fw_dev = fw_parent_device(oxfw->unit);
struct fw_csr_iterator it;
int key, val;
int vendor, model;
/*
* Add ALSA control elements for two models to keep compatibility to
* old firewire-speaker module.
*/
if (oxfw->entry->vendor_id == VENDOR_GRIFFIN)
return snd_oxfw_add_spkr(oxfw, false);
if (oxfw->entry->vendor_id == VENDOR_LACIE)
return snd_oxfw_add_spkr(oxfw, true);
/*
* Stanton models supports asynchronous transactions for unique MIDI
* messages.
*/
if (oxfw->entry->vendor_id == OUI_STANTON) {
/* No physical MIDI ports. */
oxfw->midi_input_ports = 0;
oxfw->midi_output_ports = 0;
/* Output stream exists but no data channels are useful. */
oxfw->has_output = false;
return snd_oxfw_scs1x_add(oxfw);
}
/*
* TASCAM FireOne has physical control and requires a pair of additional
* MIDI ports.
*/
if (oxfw->entry->vendor_id == VENDOR_TASCAM) {
oxfw->midi_input_ports++;
oxfw->midi_output_ports++;
return 0;
}
/* Seek from Root Directory of Config ROM. */
vendor = model = 0;
fw_csr_iterator_init(&it, fw_dev->config_rom + 5);
while (fw_csr_iterator_next(&it, &key, &val)) {
if (key == CSR_VENDOR)
vendor = val;
else if (key == CSR_MODEL)
model = val;
}
/*
* Mackie Onyx Satellite with base station has a quirk to report a wrong
* value in 'dbs' field of CIP header against its format information.
*/
if (vendor == VENDOR_LOUD && model == MODEL_SATELLITE)
oxfw->wrong_dbs = true;
return 0;
}
static void do_registration(struct work_struct *work)
{
struct snd_oxfw *oxfw = container_of(work, struct snd_oxfw, dwork.work);
int err;
if (oxfw->registered)
return;
err = snd_card_new(&oxfw->unit->device, -1, NULL, THIS_MODULE, 0,
&oxfw->card);
if (err < 0)
return;
err = name_card(oxfw);
if (err < 0)
goto error;
err = snd_oxfw_stream_discover(oxfw);
if (err < 0)
goto error;
err = detect_quirks(oxfw);
if (err < 0)
goto error;
err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->rx_stream);
if (err < 0)
goto error;
if (oxfw->has_output) {
err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->tx_stream);
if (err < 0)
goto error;
}
err = snd_oxfw_create_pcm(oxfw);
if (err < 0)
goto error;
snd_oxfw_proc_init(oxfw);
err = snd_oxfw_create_midi(oxfw);
if (err < 0)
goto error;
err = snd_oxfw_create_hwdep(oxfw);
if (err < 0)
goto error;
err = snd_card_register(oxfw->card);
if (err < 0)
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