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-rw-r--r--sound/firewire/speakers.c855
1 files changed, 855 insertions, 0 deletions
diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c
new file mode 100644
index 00000000000..f6b095ef075
--- /dev/null
+++ b/sound/firewire/speakers.c
@@ -0,0 +1,855 @@
+/*
+ * OXFW970-based speakers driver
+ *
+ * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include <linux/device.h>
+#include <linux/firewire.h>
+#include <linux/firewire-constants.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <sound/control.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include "cmp.h"
+#include "fcp.h"
+#include "amdtp.h"
+#include "lib.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
+
+struct device_info {
+ const char *driver_name;
+ const char *short_name;
+ const char *long_name;
+ int (*pcm_constraints)(struct snd_pcm_runtime *runtime);
+ unsigned int mixer_channels;
+ u8 mute_fb_id;
+ u8 volume_fb_id;
+};
+
+struct fwspk {
+ struct snd_card *card;
+ struct fw_unit *unit;
+ const struct device_info *device_info;
+ struct snd_pcm_substream *pcm;
+ struct mutex mutex;
+ struct cmp_connection connection;
+ struct amdtp_out_stream stream;
+ bool stream_running;
+ bool mute;
+ s16 volume[6];
+ s16 volume_min;
+ s16 volume_max;
+};
+
+MODULE_DESCRIPTION("FireWire speakers driver");
+MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
+MODULE_LICENSE("GPL v2");
+
+static int firewave_rate_constraint(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ static unsigned int stereo_rates[] = { 48000, 96000 };
+ struct snd_interval *channels =
+ hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ struct snd_interval *rate =
+ hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+
+ /* two channels work only at 48/96 kHz */
+ if (snd_interval_max(channels) < 6)
+ return snd_interval_list(rate, 2, stereo_rates, 0);
+ return 0;
+}
+
+static int firewave_channels_constraint(struct snd_pcm_hw_params *params,
+ struct snd_pcm_hw_rule *rule)
+{
+ static const struct snd_interval all_channels = { .min = 6, .max = 6 };
+ struct snd_interval *rate =
+ hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+ struct snd_interval *channels =
+ hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+
+ /* 32/44.1 kHz work only with all six channels */
+ if (snd_interval_max(rate) < 48000)
+ return snd_interval_refine(channels, &all_channels);
+ return 0;
+}
+
+static int firewave_constraints(struct snd_pcm_runtime *runtime)
+{
+ static unsigned int channels_list[] = { 2, 6 };
+ static struct snd_pcm_hw_constraint_list channels_list_constraint = {
+ .count = 2,
+ .list = channels_list,
+ };
+ int err;
+
+ runtime->hw.rates = SNDRV_PCM_RATE_32000 |
+ SNDRV_PCM_RATE_44100 |
+ SNDRV_PCM_RATE_48000 |
+ SNDRV_PCM_RATE_96000;
+ runtime->hw.channels_max = 6;
+
+ err = snd_pcm_hw_constraint_list(runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ &channels_list_constraint);
+ if (err < 0)
+ return err;
+ err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+ firewave_rate_constraint, NULL,
+ SNDRV_PCM_HW_PARAM_CHANNELS, -1);
+ if (err < 0)
+ return err;
+ err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+ firewave_channels_constraint, NULL,
+ SNDRV_PCM_HW_PARAM_RATE, -1);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int lacie_speakers_constraints(struct snd_pcm_runtime *runtime)
+{
+ runtime->hw.rates = SNDRV_PCM_RATE_32000 |
+ SNDRV_PCM_RATE_44100 |
+ SNDRV_PCM_RATE_48000 |
+ SNDRV_PCM_RATE_88200 |
+ SNDRV_PCM_RATE_96000;
+
+ return 0;
+}
+
+static int fwspk_open(struct snd_pcm_substream *substream)
+{
+ static const struct snd_pcm_hardware hardware = {
+ .info = SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_BATCH |
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER,
+ .formats = AMDTP_OUT_PCM_FORMAT_BITS,
+ .channels_min = 2,
+ .channels_max = 2,
+ .buffer_bytes_max = 4 * 1024 * 1024,
+ .period_bytes_min = 1,
+ .period_bytes_max = UINT_MAX,
+ .periods_min = 1,
+ .periods_max = UINT_MAX,
+ };
+ struct fwspk *fwspk = substream->private_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ int err;
+
+ runtime->hw = hardware;
+
+ err = fwspk->device_info->pcm_constraints(runtime);
+ if (err < 0)
+ return err;
+ err = snd_pcm_limit_hw_rates(runtime);
+ if (err < 0)
+ return err;
+
+ err = snd_pcm_hw_constraint_minmax(runtime,
+ SNDRV_PCM_HW_PARAM_PERIOD_TIME,
+ 5000, 8192000);
+ if (err < 0)
+ return err;
+
+ err = snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
+ if (err < 0)
+ return err;
+
+ return 0;
+}
+
+static int fwspk_close(struct snd_pcm_substream *substream)
+{
+ return 0;
+}
+
+static void fwspk_stop_stream(struct fwspk *fwspk)
+{
+ if (fwspk->stream_running) {
+ amdtp_out_stream_stop(&fwspk->stream);
+ cmp_connection_break(&fwspk->connection);
+ fwspk->stream_running = false;
+ }
+}
+
+static int fwspk_set_rate(struct fwspk *fwspk, unsigned int sfc)
+{
+ u8 *buf;
+ int err;
+
+ buf = kmalloc(8, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ buf[0] = 0x00; /* AV/C, CONTROL */
+ buf[1] = 0xff; /* unit */
+ buf[2] = 0x19; /* INPUT PLUG SIGNAL FORMAT */
+ buf[3] = 0x00; /* plug 0 */
+ buf[4] = 0x90; /* format: audio */
+ buf[5] = 0x00 | sfc; /* AM824, frequency */
+ buf[6] = 0xff; /* SYT (not used) */
+ buf[7] = 0xff;
+
+ err = fcp_avc_transaction(fwspk->unit, buf, 8, buf, 8,
+ BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5));
+ if (err < 0)
+ goto error;
+ if (err < 6 || buf[0] != 0x09 /* ACCEPTED */) {
+ dev_err(&fwspk->unit->device, "failed to set sample rate\n");
+ err = -EIO;
+ goto error;
+ }
+
+ err = 0;
+
+error:
+ kfree(buf);
+
+ return err;
+}
+
+static int fwspk_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
+{
+ struct fwspk *fwspk = substream->private_data;
+ int err;
+
+ mutex_lock(&fwspk->mutex);
+ fwspk_stop_stream(fwspk);
+ mutex_unlock(&fwspk->mutex);
+
+ err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
+ params_buffer_bytes(hw_params));
+ if (err < 0)
+ goto error;
+
+ amdtp_out_stream_set_rate(&fwspk->stream, params_rate(hw_params));
+ amdtp_out_stream_set_pcm(&fwspk->stream, params_channels(hw_params));
+
+ amdtp_out_stream_set_pcm_format(&fwspk->stream,
+ params_format(hw_params));
+
+ err = fwspk_set_rate(fwspk, fwspk->stream.sfc);
+ if (err < 0)
+ goto err_buffer;
+
+ return 0;
+
+err_buffer:
+ snd_pcm_lib_free_vmalloc_buffer(substream);
+error:
+ return err;
+}
+
+static int fwspk_hw_free(struct snd_pcm_substream *substream)
+{
+ struct fwspk *fwspk = substream->private_data;
+
+ mutex_lock(&fwspk->mutex);
+ fwspk_stop_stream(fwspk);
+ mutex_unlock(&fwspk->mutex);
+
+ return snd_pcm_lib_free_vmalloc_buffer(substream);
+}
+
+static int fwspk_prepare(struct snd_pcm_substream *substream)
+{
+ struct fwspk *fwspk = substream->private_data;
+ int err;
+
+ mutex_lock(&fwspk->mutex);
+
+ if (!fwspk->stream_running) {
+ err = cmp_connection_establish(&fwspk->connection,
+ amdtp_out_stream_get_max_payload(&fwspk->stream));
+ if (err < 0)
+ goto err_mutex;
+
+ err = amdtp_out_stream_start(&fwspk->stream,
+ fwspk->connection.resources.channel,
+ fwspk->connection.speed);
+ if (err < 0)
+ goto err_connection;
+
+ fwspk->stream_running = true;
+ }
+
+ mutex_unlock(&fwspk->mutex);
+
+ amdtp_out_stream_pcm_prepare(&fwspk->stream);
+
+ return 0;
+
+err_connection:
+ cmp_connection_break(&fwspk->connection);
+err_mutex:
+ mutex_unlock(&fwspk->mutex);
+
+ return err;
+}
+
+static int fwspk_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+ struct fwspk *fwspk = substream->private_data;
+ struct snd_pcm_substream *pcm;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ pcm = substream;
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ pcm = NULL;
+ break;
+ default:
+ return -EINVAL;
+ }
+ amdtp_out_stream_pcm_trigger(&fwspk->stream, pcm);
+ return 0;
+}
+
+static snd_pcm_uframes_t fwspk_pointer(struct snd_pcm_substream *substream)
+{
+ struct fwspk *fwspk = substream->private_data;
+
+ return amdtp_out_stream_pcm_pointer(&fwspk->stream);
+}
+
+static int fwspk_create_pcm(struct fwspk *fwspk)
+{
+ static struct snd_pcm_ops ops = {
+ .open = fwspk_open,
+ .close = fwspk_close,
+ .ioctl = snd_pcm_lib_ioctl,
+ .hw_params = fwspk_hw_params,
+ .hw_free = fwspk_hw_free,
+ .prepare = fwspk_prepare,
+ .trigger = fwspk_trigger,
+ .pointer = fwspk_pointer,
+ .page = snd_pcm_lib_get_vmalloc_page,
+ .mmap = snd_pcm_lib_mmap_vmalloc,
+ };
+ struct snd_pcm *pcm;
+ int err;
+
+ err = snd_pcm_new(fwspk->card, "OXFW970", 0, 1, 0, &pcm);
+ if (err < 0)
+ return err;
+ pcm->private_data = fwspk;
+ strcpy(pcm->name, fwspk->device_info->short_name);
+ fwspk->pcm = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
+ fwspk->pcm->ops = &ops;
+ return 0;
+}
+
+enum control_action { CTL_READ, CTL_WRITE };
+enum control_attribute {
+ CTL_MIN = 0x02,
+ CTL_MAX = 0x03,
+ CTL_CURRENT = 0x10,
+};
+
+static int fwspk_mute_command(struct fwspk *fwspk, bool *value,
+ enum control_action action)
+{
+ u8 *buf;
+ u8 response_ok;
+ int err;
+
+ buf = kmalloc(11, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ if (action == CTL_READ) {
+ buf[0] = 0x01; /* AV/C, STATUS */
+ response_ok = 0x0c; /* STABLE */
+ } else {
+ buf[0] = 0x00; /* AV/C, CONTROL */
+ response_ok = 0x09; /* ACCEPTED */
+ }
+ buf[1] = 0x08; /* audio unit 0 */
+ buf[2] = 0xb8; /* FUNCTION BLOCK */
+ buf[3] = 0x81; /* function block type: feature */
+ buf[4] = fwspk->device_info->mute_fb_id; /* function block ID */
+ buf[5] = 0x10; /* control attribute: current */
+ buf[6] = 0x02; /* selector length */
+ buf[7] = 0x00; /* audio channel number */
+ buf[8] = 0x01; /* control selector: mute */
+ buf[9] = 0x01; /* control data length */
+ if (action == CTL_READ)
+ buf[10] = 0xff;
+ else
+ buf[10] = *value ? 0x70 : 0x60;
+
+ err = fcp_avc_transaction(fwspk->unit, buf, 11, buf, 11, 0x3fe);
+ if (err < 0)
+ goto error;
+ if (err < 11) {
+ dev_err(&fwspk->unit->device, "short FCP response\n");
+ err = -EIO;
+ goto error;
+ }
+ if (buf[0] != response_ok) {
+ dev_err(&fwspk->unit->device, "mute command failed\n");
+ err = -EIO;
+ goto error;
+ }
+ if (action == CTL_READ)
+ *value = buf[10] == 0x70;
+
+ err = 0;
+
+error:
+ kfree(buf);
+
+ return err;
+}
+
+static int fwspk_volume_command(struct fwspk *fwspk, s16 *value,
+ unsigned int channel,
+ enum control_attribute attribute,
+ enum control_action action)
+{
+ u8 *buf;
+ u8 response_ok;
+ int err;
+
+ buf = kmalloc(12, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ if (action == CTL_READ) {
+ buf[0] = 0x01; /* AV/C, STATUS */
+ response_ok = 0x0c; /* STABLE */
+ } else {
+ buf[0] = 0x00; /* AV/C, CONTROL */
+ response_ok = 0x09; /* ACCEPTED */
+ }
+ buf[1] = 0x08; /* audio unit 0 */
+ buf[2] = 0xb8; /* FUNCTION BLOCK */
+ buf[3] = 0x81; /* function block type: feature */
+ buf[4] = fwspk->device_info->volume_fb_id; /* function block ID */
+ buf[5] = attribute; /* control attribute */
+ buf[6] = 0x02; /* selector length */
+ buf[7] = channel; /* audio channel number */
+ buf[8] = 0x02; /* control selector: volume */
+ buf[9] = 0x02; /* control data length */
+ if (action == CTL_READ) {
+ buf[10] = 0xff;
+ buf[11] = 0xff;
+ } else {
+ buf[10] = *value >> 8;
+ buf[11] = *value;
+ }
+
+ err = fcp_avc_transaction(fwspk->unit, buf, 12, buf, 12, 0x3fe);
+ if (err < 0)
+ goto error;
+ if (err < 12) {
+ dev_err(&fwspk->unit->device, "short FCP response\n");
+ err = -EIO;
+ goto error;
+ }
+ if (buf[0] != response_ok) {
+ dev_err(&fwspk->unit->device, "volume command failed\n");
+ err = -EIO;
+ goto error;
+ }
+ if (action == CTL_READ)
+ *value = (buf[10] << 8) | buf[11];
+
+ err = 0;
+
+error:
+ kfree(buf);
+
+ return err;
+}
+
+static int fwspk_mute_get(struct snd_kcontrol *control,
+ struct snd_ctl_elem_value *value)
+{
+ struct fwspk *fwspk = control->private_data;
+
+ value->value.integer.value[0] = !fwspk->mute;
+
+ return 0;
+}
+
+static int fwspk_mute_put(struct snd_kcontrol *control,
+ struct snd_ctl_elem_value *value)
+{
+ struct fwspk *fwspk = control->private_data;
+ bool mute;
+ int err;
+
+ mute = !value->value.integer.value[0];
+
+ if (mute == fwspk->mute)
+ return 0;
+
+ err = fwspk_mute_command(fwspk, &mute, CTL_WRITE);
+ if (err < 0)
+ return err;
+ fwspk->mute = mute;
+
+ return 1;
+}
+
+static int fwspk_volume_info(struct snd_kcontrol *control,
+ struct snd_ctl_elem_info *info)
+{
+ struct fwspk *fwspk = control->private_data;
+
+ info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+ info->count = fwspk->device_info->mixer_channels;
+ info->value.integer.min = fwspk->volume_min;
+ info->value.integer.max = fwspk->volume_max;
+
+ return 0;
+}
+
+static const u8 channel_map[6] = { 0, 1, 4, 5, 2, 3 };
+
+static int fwspk_volume_get(struct snd_kcontrol *control,
+ struct snd_ctl_elem_value *value)
+{
+ struct fwspk *fwspk = control->private_data;
+ unsigned int i;
+
+ for (i = 0; i < fwspk->device_info->mixer_channels; ++i)
+ value->value.integer.value[channel_map[i]] = fwspk->volume[i];
+
+ return 0;
+}
+
+static int fwspk_volume_put(struct snd_kcontrol *control,
+ struct snd_ctl_elem_value *value)
+{
+ struct fwspk *fwspk = control->private_data;
+ unsigned int i, changed_channels;
+ bool equal_values = true;
+ s16 volume;
+ int err;
+
+ for (i = 0; i < fwspk->device_info->mixer_channels; ++i) {
+ if (value->value.integer.value[i] < fwspk->volume_min ||
+ value->value.integer.value[i] > fwspk->volume_max)
+ return -EINVAL;
+ if (value->value.integer.value[i] !=
+ value->value.integer.value[0])
+ equal_values = false;
+ }
+
+ changed_channels = 0;
+ for (i = 0; i < fwspk->device_info->mixer_channels; ++i)
+ if (value->value.integer.value[channel_map[i]] !=
+ fwspk->volume[i])
+ changed_channels |= 1 << (i + 1);
+
+ if (equal_values && changed_channels != 0)
+ changed_channels = 1 << 0;
+
+ for (i = 0; i <= fwspk->device_info->mixer_channels; ++i) {
+ volume = value->value.integer.value[channel_map[i ? i - 1 : 0]];
+ if (changed_channels & (1 << i)) {
+ err = fwspk_volume_command(fwspk, &volume, i,
+ CTL_CURRENT, CTL_WRITE);
+ if (err < 0)
+ return err;
+ }
+ if (i > 0)
+ fwspk->volume[i - 1] = volume;
+ }
+
+ return changed_channels != 0;
+}
+
+static int fwspk_create_mixer(struct fwspk *fwspk)
+{
+ static const struct snd_kcontrol_new controls[] = {
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "PCM Playback Switch",
+ .info = snd_ctl_boolean_mono_info,
+ .get = fwspk_mute_get,
+ .put = fwspk_mute_put,
+ },
+ {
+ .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+ .name = "PCM Playback Volume",
+ .info = fwspk_volume_info,
+ .get = fwspk_volume_get,
+ .put = fwspk_volume_put,
+ },
+ };
+ unsigned int i, first_ch;
+ int err;
+
+ err = fwspk_volume_command(fwspk, &fwspk->volume_min,
+ 0, CTL_MIN, CTL_READ);
+ if (err < 0)
+ return err;
+ err = fwspk_volume_command(fwspk, &fwspk->volume_max,
+ 0, CTL_MAX, CTL_READ);
+ if (err < 0)
+ return err;
+
+ err = fwspk_mute_command(fwspk, &fwspk->mute, CTL_READ);
+ if (err < 0)
+ return err;
+
+ first_ch = fwspk->device_info->mixer_channels == 1 ? 0 : 1;
+ for (i = 0; i < fwspk->device_info->mixer_channels; ++i) {
+ err = fwspk_volume_command(fwspk, &fwspk->volume[i],
+ first_ch + i, CTL_CURRENT, CTL_READ);
+ if (err < 0)
+ return err;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(controls); ++i) {
+ err = snd_ctl_add(fwspk->card,
+ snd_ctl_new1(&controls[i], fwspk));
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+static u32 fwspk_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);
+ return err >= 0 ? be32_to_cpu(data) : 0;
+}
+
+static void fwspk_card_free(struct snd_card *card)
+{
+ struct fwspk *fwspk = card->private_data;
+ struct fw_device *dev = fw_parent_device(fwspk->unit);
+
+ amdtp_out_stream_destroy(&fwspk->stream);
+ cmp_connection_destroy(&fwspk->connection);
+ fw_unit_put(fwspk->unit);
+ fw_device_put(dev);
+ mutex_destroy(&fwspk->mutex);
+}
+
+static const struct device_info *__devinit fwspk_detect(struct fw_device *dev)
+{
+ 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,
+ };
+ struct fw_csr_iterator i;
+ int key, value;
+
+ fw_csr_iterator_init(&i, dev->config_rom);
+ while (fw_csr_iterator_next(&i, &key, &value))
+ if (key == CSR_VENDOR)
+ switch (value) {
+ case VENDOR_GRIFFIN:
+ return &griffin_firewave;
+ case VENDOR_LACIE:
+ return &lacie_speakers;
+ }
+
+ return NULL;
+}
+
+static int __devinit fwspk_probe(struct device *unit_dev)
+{
+ struct fw_unit *unit = fw_unit(unit_dev);
+ struct fw_device *fw_dev = fw_parent_device(unit);
+ struct snd_card *card;
+ struct fwspk *fwspk;
+ u32 firmware;
+ int err;
+
+ err = snd_card_create(-1, NULL, THIS_MODULE, sizeof(*fwspk), &card);
+ if (err < 0)
+ return err;
+ snd_card_set_dev(card, unit_dev);
+
+ fwspk = card->private_data;
+ fwspk->card = card;
+ mutex_init(&fwspk->mutex);
+ fw_device_get(fw_dev);
+ fwspk->unit = fw_unit_get(unit);
+ fwspk->device_info = fwspk_detect(fw_dev);
+ if (!fwspk->device_info) {
+ err = -ENODEV;
+ goto err_unit;
+ }
+
+ err = cmp_connection_init(&fwspk->connection, unit, 0);
+ if (err < 0)
+ goto err_unit;
+
+ err = amdtp_out_stream_init(&fwspk->stream, unit, CIP_NONBLOCKING);
+ if (err < 0)
+ goto err_connection;
+
+ card->private_free = fwspk_card_free;
+
+ strcpy(card->driver, fwspk->device_info->driver_name);
+ strcpy(card->shortname, fwspk->device_info->short_name);
+ firmware = fwspk_read_firmware_version(unit);
+ snprintf(card->longname, sizeof(card->longname),
+ "%s (OXFW%x %04x), GUID %08x%08x at %s, S%d",
+ fwspk->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, "OXFW970");
+
+ err = fwspk_create_pcm(fwspk);
+ if (err < 0)
+ goto error;
+
+ err = fwspk_create_mixer(fwspk);
+ if (err < 0)
+ goto error;
+
+ err = snd_card_register(card);
+ if (err < 0)
+ goto error;
+
+ dev_set_drvdata(unit_dev, fwspk);
+
+ return 0;
+
+err_connection:
+ cmp_connection_destroy(&fwspk->connection);
+err_unit:
+ fw_unit_put(fwspk->unit);
+ fw_device_put(fw_dev);
+ mutex_destroy(&fwspk->mutex);
+error:
+ snd_card_free(card);
+ return err;
+}
+
+static int __devexit fwspk_remove(struct device *dev)
+{
+ struct fwspk *fwspk = dev_get_drvdata(dev);
+
+ snd_card_disconnect(fwspk->card);
+
+ mutex_lock(&fwspk->mutex);
+ amdtp_out_stream_pcm_abort(&fwspk->stream);
+ fwspk_stop_stream(fwspk);
+ mutex_unlock(&fwspk->mutex);
+
+ snd_card_free_when_closed(fwspk->card);
+
+ return 0;
+}
+
+static void fwspk_bus_reset(struct fw_unit *unit)
+{
+ struct fwspk *fwspk = dev_get_drvdata(&unit->device);
+
+ fcp_bus_reset(fwspk->unit);
+
+ if (cmp_connection_update(&fwspk->connection) < 0) {
+ mutex_lock(&fwspk->mutex);
+ amdtp_out_stream_pcm_abort(&fwspk->stream);
+ fwspk_stop_stream(fwspk);
+ mutex_unlock(&fwspk->mutex);
+ return;
+ }
+
+ amdtp_out_stream_update(&fwspk->stream);
+}
+
+static const struct ieee1394_device_id fwspk_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,
+ },
+ {
+ .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,
+ },
+ { }
+};
+MODULE_DEVICE_TABLE(ieee1394, fwspk_id_table);
+
+static struct fw_driver fwspk_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = KBUILD_MODNAME,
+ .bus = &fw_bus_type,
+ .probe = fwspk_probe,
+ .remove = __devexit_p(fwspk_remove),
+ },
+ .update = fwspk_bus_reset,
+ .id_table = fwspk_id_table,
+};
+
+static int __init alsa_fwspk_init(void)
+{
+ return driver_register(&fwspk_driver.driver);
+}
+
+static void __exit alsa_fwspk_exit(void)
+{
+ driver_unregister(&fwspk_driver.driver);
+}
+
+module_init(alsa_fwspk_init);
+module_exit(alsa_fwspk_exit);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-25 14:16:09 +0000