summaryrefslogtreecommitdiff
path: root/ANDROID_3.4.5/sound/firewire
diff options
context:
space:
mode:
authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/sound/firewire
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
downloadFOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.gz
FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.tar.bz2
FOSSEE-netbook-kernel-source-871480933a1c28f8a9fed4c4d34d06c439a7a422.zip
Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/sound/firewire')
-rw-r--r--ANDROID_3.4.5/sound/firewire/Kconfig36
-rw-r--r--ANDROID_3.4.5/sound/firewire/Makefile8
-rw-r--r--ANDROID_3.4.5/sound/firewire/amdtp.c563
-rw-r--r--ANDROID_3.4.5/sound/firewire/amdtp.h169
-rw-r--r--ANDROID_3.4.5/sound/firewire/cmp.c307
-rw-r--r--ANDROID_3.4.5/sound/firewire/cmp.h41
-rw-r--r--ANDROID_3.4.5/sound/firewire/fcp.c224
-rw-r--r--ANDROID_3.4.5/sound/firewire/fcp.h12
-rw-r--r--ANDROID_3.4.5/sound/firewire/isight.c753
-rw-r--r--ANDROID_3.4.5/sound/firewire/iso-resources.c232
-rw-r--r--ANDROID_3.4.5/sound/firewire/iso-resources.h38
-rw-r--r--ANDROID_3.4.5/sound/firewire/lib.c85
-rw-r--r--ANDROID_3.4.5/sound/firewire/lib.h19
-rw-r--r--ANDROID_3.4.5/sound/firewire/packets-buffer.c77
-rw-r--r--ANDROID_3.4.5/sound/firewire/packets-buffer.h26
-rw-r--r--ANDROID_3.4.5/sound/firewire/speakers.c854
16 files changed, 0 insertions, 3444 deletions
diff --git a/ANDROID_3.4.5/sound/firewire/Kconfig b/ANDROID_3.4.5/sound/firewire/Kconfig
deleted file mode 100644
index 26071489..00000000
--- a/ANDROID_3.4.5/sound/firewire/Kconfig
+++ /dev/null
@@ -1,36 +0,0 @@
-menuconfig SND_FIREWIRE
- bool "FireWire sound devices"
- depends on FIREWIRE
- default y
- help
- Support for IEEE-1394/FireWire/iLink sound devices.
-
-if SND_FIREWIRE && FIREWIRE
-
-config SND_FIREWIRE_LIB
- tristate
- depends on SND_PCM
-
-config SND_FIREWIRE_SPEAKERS
- tristate "FireWire speakers"
- select SND_PCM
- select SND_FIREWIRE_LIB
- help
- Say Y here to include support for the Griffin FireWave Surround
- and the LaCie FireWire Speakers.
-
- To compile this driver as a module, choose M here: the module
- will be called snd-firewire-speakers.
-
-config SND_ISIGHT
- tristate "Apple iSight microphone"
- select SND_PCM
- select SND_FIREWIRE_LIB
- help
- Say Y here to include support for the front and rear microphones
- of the Apple iSight web camera.
-
- To compile this driver as a module, choose M here: the module
- will be called snd-isight.
-
-endif # SND_FIREWIRE
diff --git a/ANDROID_3.4.5/sound/firewire/Makefile b/ANDROID_3.4.5/sound/firewire/Makefile
deleted file mode 100644
index d71ed893..00000000
--- a/ANDROID_3.4.5/sound/firewire/Makefile
+++ /dev/null
@@ -1,8 +0,0 @@
-snd-firewire-lib-objs := lib.o iso-resources.o packets-buffer.o \
- fcp.o cmp.o amdtp.o
-snd-firewire-speakers-objs := speakers.o
-snd-isight-objs := isight.o
-
-obj-$(CONFIG_SND_FIREWIRE_LIB) += snd-firewire-lib.o
-obj-$(CONFIG_SND_FIREWIRE_SPEAKERS) += snd-firewire-speakers.o
-obj-$(CONFIG_SND_ISIGHT) += snd-isight.o
diff --git a/ANDROID_3.4.5/sound/firewire/amdtp.c b/ANDROID_3.4.5/sound/firewire/amdtp.c
deleted file mode 100644
index 87657dd7..00000000
--- a/ANDROID_3.4.5/sound/firewire/amdtp.c
+++ /dev/null
@@ -1,563 +0,0 @@
-/*
- * Audio and Music Data Transmission Protocol (IEC 61883-6) streams
- * with Common Isochronous Packet (IEC 61883-1) headers
- *
- * 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/err.h>
-#include <linux/firewire.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <sound/pcm.h>
-#include "amdtp.h"
-
-#define TICKS_PER_CYCLE 3072
-#define CYCLES_PER_SECOND 8000
-#define TICKS_PER_SECOND (TICKS_PER_CYCLE * CYCLES_PER_SECOND)
-
-#define TRANSFER_DELAY_TICKS 0x2e00 /* 479.17 µs */
-
-#define TAG_CIP 1
-
-#define CIP_EOH (1u << 31)
-#define CIP_FMT_AM (0x10 << 24)
-#define AMDTP_FDF_AM824 (0 << 19)
-#define AMDTP_FDF_SFC_SHIFT 16
-
-/* TODO: make these configurable */
-#define INTERRUPT_INTERVAL 16
-#define QUEUE_LENGTH 48
-
-/**
- * amdtp_out_stream_init - initialize an AMDTP output stream structure
- * @s: the AMDTP output stream to initialize
- * @unit: the target of the stream
- * @flags: the packet transmission method to use
- */
-int amdtp_out_stream_init(struct amdtp_out_stream *s, struct fw_unit *unit,
- enum cip_out_flags flags)
-{
- if (flags != CIP_NONBLOCKING)
- return -EINVAL;
-
- s->unit = fw_unit_get(unit);
- s->flags = flags;
- s->context = ERR_PTR(-1);
- mutex_init(&s->mutex);
- s->packet_index = 0;
-
- return 0;
-}
-EXPORT_SYMBOL(amdtp_out_stream_init);
-
-/**
- * amdtp_out_stream_destroy - free stream resources
- * @s: the AMDTP output stream to destroy
- */
-void amdtp_out_stream_destroy(struct amdtp_out_stream *s)
-{
- WARN_ON(!IS_ERR(s->context));
- mutex_destroy(&s->mutex);
- fw_unit_put(s->unit);
-}
-EXPORT_SYMBOL(amdtp_out_stream_destroy);
-
-/**
- * amdtp_out_stream_set_rate - set the sample rate
- * @s: the AMDTP output stream to configure
- * @rate: the sample rate
- *
- * The sample rate must be set before the stream is started, and must not be
- * changed while the stream is running.
- */
-void amdtp_out_stream_set_rate(struct amdtp_out_stream *s, unsigned int rate)
-{
- static const struct {
- unsigned int rate;
- unsigned int syt_interval;
- } rate_info[] = {
- [CIP_SFC_32000] = { 32000, 8, },
- [CIP_SFC_44100] = { 44100, 8, },
- [CIP_SFC_48000] = { 48000, 8, },
- [CIP_SFC_88200] = { 88200, 16, },
- [CIP_SFC_96000] = { 96000, 16, },
- [CIP_SFC_176400] = { 176400, 32, },
- [CIP_SFC_192000] = { 192000, 32, },
- };
- unsigned int sfc;
-
- if (WARN_ON(!IS_ERR(s->context)))
- return;
-
- for (sfc = 0; sfc < ARRAY_SIZE(rate_info); ++sfc)
- if (rate_info[sfc].rate == rate) {
- s->sfc = sfc;
- s->syt_interval = rate_info[sfc].syt_interval;
- return;
- }
- WARN_ON(1);
-}
-EXPORT_SYMBOL(amdtp_out_stream_set_rate);
-
-/**
- * amdtp_out_stream_get_max_payload - get the stream's packet size
- * @s: the AMDTP output stream
- *
- * This function must not be called before the stream has been configured
- * with amdtp_out_stream_set_hw_params(), amdtp_out_stream_set_pcm(), and
- * amdtp_out_stream_set_midi().
- */
-unsigned int amdtp_out_stream_get_max_payload(struct amdtp_out_stream *s)
-{
- static const unsigned int max_data_blocks[] = {
- [CIP_SFC_32000] = 4,
- [CIP_SFC_44100] = 6,
- [CIP_SFC_48000] = 6,
- [CIP_SFC_88200] = 12,
- [CIP_SFC_96000] = 12,
- [CIP_SFC_176400] = 23,
- [CIP_SFC_192000] = 24,
- };
-
- s->data_block_quadlets = s->pcm_channels;
- s->data_block_quadlets += DIV_ROUND_UP(s->midi_ports, 8);
-
- return 8 + max_data_blocks[s->sfc] * 4 * s->data_block_quadlets;
-}
-EXPORT_SYMBOL(amdtp_out_stream_get_max_payload);
-
-static void amdtp_write_s16(struct amdtp_out_stream *s,
- struct snd_pcm_substream *pcm,
- __be32 *buffer, unsigned int frames);
-static void amdtp_write_s32(struct amdtp_out_stream *s,
- struct snd_pcm_substream *pcm,
- __be32 *buffer, unsigned int frames);
-
-/**
- * amdtp_out_stream_set_pcm_format - set the PCM format
- * @s: the AMDTP output stream to configure
- * @format: the format of the ALSA PCM device
- *
- * The sample format must be set before the stream is started, and must not be
- * changed while the stream is running.
- */
-void amdtp_out_stream_set_pcm_format(struct amdtp_out_stream *s,
- snd_pcm_format_t format)
-{
- if (WARN_ON(!IS_ERR(s->context)))
- return;
-
- switch (format) {
- default:
- WARN_ON(1);
- /* fall through */
- case SNDRV_PCM_FORMAT_S16:
- s->transfer_samples = amdtp_write_s16;
- break;
- case SNDRV_PCM_FORMAT_S32:
- s->transfer_samples = amdtp_write_s32;
- break;
- }
-}
-EXPORT_SYMBOL(amdtp_out_stream_set_pcm_format);
-
-static unsigned int calculate_data_blocks(struct amdtp_out_stream *s)
-{
- unsigned int phase, data_blocks;
-
- if (!cip_sfc_is_base_44100(s->sfc)) {
- /* Sample_rate / 8000 is an integer, and precomputed. */
- data_blocks = s->data_block_state;
- } else {
- phase = s->data_block_state;
-
- /*
- * This calculates the number of data blocks per packet so that
- * 1) the overall rate is correct and exactly synchronized to
- * the bus clock, and
- * 2) packets with a rounded-up number of blocks occur as early
- * as possible in the sequence (to prevent underruns of the
- * device's buffer).
- */
- if (s->sfc == CIP_SFC_44100)
- /* 6 6 5 6 5 6 5 ... */
- data_blocks = 5 + ((phase & 1) ^
- (phase == 0 || phase >= 40));
- else
- /* 12 11 11 11 11 ... or 23 22 22 22 22 ... */
- data_blocks = 11 * (s->sfc >> 1) + (phase == 0);
- if (++phase >= (80 >> (s->sfc >> 1)))
- phase = 0;
- s->data_block_state = phase;
- }
-
- return data_blocks;
-}
-
-static unsigned int calculate_syt(struct amdtp_out_stream *s,
- unsigned int cycle)
-{
- unsigned int syt_offset, phase, index, syt;
-
- if (s->last_syt_offset < TICKS_PER_CYCLE) {
- if (!cip_sfc_is_base_44100(s->sfc))
- syt_offset = s->last_syt_offset + s->syt_offset_state;
- else {
- /*
- * The time, in ticks, of the n'th SYT_INTERVAL sample is:
- * n * SYT_INTERVAL * 24576000 / sample_rate
- * Modulo TICKS_PER_CYCLE, the difference between successive
- * elements is about 1386.23. Rounding the results of this
- * formula to the SYT precision results in a sequence of
- * differences that begins with:
- * 1386 1386 1387 1386 1386 1386 1387 1386 1386 1386 1387 ...
- * This code generates _exactly_ the same sequence.
- */
- phase = s->syt_offset_state;
- index = phase % 13;
- syt_offset = s->last_syt_offset;
- syt_offset += 1386 + ((index && !(index & 3)) ||
- phase == 146);
- if (++phase >= 147)
- phase = 0;
- s->syt_offset_state = phase;
- }
- } else
- syt_offset = s->last_syt_offset - TICKS_PER_CYCLE;
- s->last_syt_offset = syt_offset;
-
- if (syt_offset < TICKS_PER_CYCLE) {
- syt_offset += TRANSFER_DELAY_TICKS - TICKS_PER_CYCLE;
- syt = (cycle + syt_offset / TICKS_PER_CYCLE) << 12;
- syt += syt_offset % TICKS_PER_CYCLE;
-
- return syt & 0xffff;
- } else {
- return 0xffff; /* no info */
- }
-}
-
-static void amdtp_write_s32(struct amdtp_out_stream *s,
- struct snd_pcm_substream *pcm,
- __be32 *buffer, unsigned int frames)
-{
- struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, frame_step, i, c;
- const u32 *src;
-
- channels = s->pcm_channels;
- src = (void *)runtime->dma_area +
- s->pcm_buffer_pointer * (runtime->frame_bits / 8);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
- frame_step = s->data_block_quadlets - channels;
-
- for (i = 0; i < frames; ++i) {
- for (c = 0; c < channels; ++c) {
- *buffer = cpu_to_be32((*src >> 8) | 0x40000000);
- src++;
- buffer++;
- }
- buffer += frame_step;
- if (--remaining_frames == 0)
- src = (void *)runtime->dma_area;
- }
-}
-
-static void amdtp_write_s16(struct amdtp_out_stream *s,
- struct snd_pcm_substream *pcm,
- __be32 *buffer, unsigned int frames)
-{
- struct snd_pcm_runtime *runtime = pcm->runtime;
- unsigned int channels, remaining_frames, frame_step, i, c;
- const u16 *src;
-
- channels = s->pcm_channels;
- src = (void *)runtime->dma_area +
- s->pcm_buffer_pointer * (runtime->frame_bits / 8);
- remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
- frame_step = s->data_block_quadlets - channels;
-
- for (i = 0; i < frames; ++i) {
- for (c = 0; c < channels; ++c) {
- *buffer = cpu_to_be32((*src << 8) | 0x40000000);
- src++;
- buffer++;
- }
- buffer += frame_step;
- if (--remaining_frames == 0)
- src = (void *)runtime->dma_area;
- }
-}
-
-static void amdtp_fill_pcm_silence(struct amdtp_out_stream *s,
- __be32 *buffer, unsigned int frames)
-{
- unsigned int i, c;
-
- for (i = 0; i < frames; ++i) {
- for (c = 0; c < s->pcm_channels; ++c)
- buffer[c] = cpu_to_be32(0x40000000);
- buffer += s->data_block_quadlets;
- }
-}
-
-static void amdtp_fill_midi(struct amdtp_out_stream *s,
- __be32 *buffer, unsigned int frames)
-{
- unsigned int i;
-
- for (i = 0; i < frames; ++i)
- buffer[s->pcm_channels + i * s->data_block_quadlets] =
- cpu_to_be32(0x80000000);
-}
-
-static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle)
-{
- __be32 *buffer;
- unsigned int index, data_blocks, syt, ptr;
- struct snd_pcm_substream *pcm;
- struct fw_iso_packet packet;
- int err;
-
- if (s->packet_index < 0)
- return;
- index = s->packet_index;
-
- data_blocks = calculate_data_blocks(s);
- syt = calculate_syt(s, cycle);
-
- buffer = s->buffer.packets[index].buffer;
- buffer[0] = cpu_to_be32(ACCESS_ONCE(s->source_node_id_field) |
- (s->data_block_quadlets << 16) |
- s->data_block_counter);
- buffer[1] = cpu_to_be32(CIP_EOH | CIP_FMT_AM | AMDTP_FDF_AM824 |
- (s->sfc << AMDTP_FDF_SFC_SHIFT) | syt);
- buffer += 2;
-
- pcm = ACCESS_ONCE(s->pcm);
- if (pcm)
- s->transfer_samples(s, pcm, buffer, data_blocks);
- else
- amdtp_fill_pcm_silence(s, buffer, data_blocks);
- if (s->midi_ports)
- amdtp_fill_midi(s, buffer, data_blocks);
-
- s->data_block_counter = (s->data_block_counter + data_blocks) & 0xff;
-
- packet.payload_length = 8 + data_blocks * 4 * s->data_block_quadlets;
- packet.interrupt = IS_ALIGNED(index + 1, INTERRUPT_INTERVAL);
- packet.skip = 0;
- packet.tag = TAG_CIP;
- packet.sy = 0;
- packet.header_length = 0;
-
- err = fw_iso_context_queue(s->context, &packet, &s->buffer.iso_buffer,
- s->buffer.packets[index].offset);
- if (err < 0) {
- dev_err(&s->unit->device, "queueing error: %d\n", err);
- s->packet_index = -1;
- amdtp_out_stream_pcm_abort(s);
- return;
- }
-
- if (++index >= QUEUE_LENGTH)
- index = 0;
- s->packet_index = index;
-
- if (pcm) {
- ptr = s->pcm_buffer_pointer + data_blocks;
- if (ptr >= pcm->runtime->buffer_size)
- ptr -= pcm->runtime->buffer_size;
- ACCESS_ONCE(s->pcm_buffer_pointer) = ptr;
-
- s->pcm_period_pointer += data_blocks;
- if (s->pcm_period_pointer >= pcm->runtime->period_size) {
- s->pcm_period_pointer -= pcm->runtime->period_size;
- snd_pcm_period_elapsed(pcm);
- }
- }
-}
-
-static void out_packet_callback(struct fw_iso_context *context, u32 cycle,
- size_t header_length, void *header, void *data)
-{
- struct amdtp_out_stream *s = data;
- unsigned int i, packets = header_length / 4;
-
- /*
- * Compute the cycle of the last queued packet.
- * (We need only the four lowest bits for the SYT, so we can ignore
- * that bits 0-11 must wrap around at 3072.)
- */
- cycle += QUEUE_LENGTH - packets;
-
- for (i = 0; i < packets; ++i)
- queue_out_packet(s, ++cycle);
- fw_iso_context_queue_flush(s->context);
-}
-
-static int queue_initial_skip_packets(struct amdtp_out_stream *s)
-{
- struct fw_iso_packet skip_packet = {
- .skip = 1,
- };
- unsigned int i;
- int err;
-
- for (i = 0; i < QUEUE_LENGTH; ++i) {
- skip_packet.interrupt = IS_ALIGNED(s->packet_index + 1,
- INTERRUPT_INTERVAL);
- err = fw_iso_context_queue(s->context, &skip_packet, NULL, 0);
- if (err < 0)
- return err;
- if (++s->packet_index >= QUEUE_LENGTH)
- s->packet_index = 0;
- }
-
- return 0;
-}
-
-/**
- * amdtp_out_stream_start - start sending packets
- * @s: the AMDTP output stream to start
- * @channel: the isochronous channel on the bus
- * @speed: firewire speed code
- *
- * The stream cannot be started until it has been configured with
- * amdtp_out_stream_set_hw_params(), amdtp_out_stream_set_pcm(), and
- * amdtp_out_stream_set_midi(); and it must be started before any
- * PCM or MIDI device can be started.
- */
-int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed)
-{
- static const struct {
- unsigned int data_block;
- unsigned int syt_offset;
- } initial_state[] = {
- [CIP_SFC_32000] = { 4, 3072 },
- [CIP_SFC_48000] = { 6, 1024 },
- [CIP_SFC_96000] = { 12, 1024 },
- [CIP_SFC_192000] = { 24, 1024 },
- [CIP_SFC_44100] = { 0, 67 },
- [CIP_SFC_88200] = { 0, 67 },
- [CIP_SFC_176400] = { 0, 67 },
- };
- int err;
-
- mutex_lock(&s->mutex);
-
- if (WARN_ON(!IS_ERR(s->context) ||
- (!s->pcm_channels && !s->midi_ports))) {
- err = -EBADFD;
- goto err_unlock;
- }
-
- s->data_block_state = initial_state[s->sfc].data_block;
- s->syt_offset_state = initial_state[s->sfc].syt_offset;
- s->last_syt_offset = TICKS_PER_CYCLE;
-
- err = iso_packets_buffer_init(&s->buffer, s->unit, QUEUE_LENGTH,
- amdtp_out_stream_get_max_payload(s),
- DMA_TO_DEVICE);
- if (err < 0)
- goto err_unlock;
-
- s->context = fw_iso_context_create(fw_parent_device(s->unit)->card,
- FW_ISO_CONTEXT_TRANSMIT,
- channel, speed, 0,
- out_packet_callback, s);
- if (IS_ERR(s->context)) {
- err = PTR_ERR(s->context);
- if (err == -EBUSY)
- dev_err(&s->unit->device,
- "no free output stream on this controller\n");
- goto err_buffer;
- }
-
- amdtp_out_stream_update(s);
-
- s->packet_index = 0;
- s->data_block_counter = 0;
- err = queue_initial_skip_packets(s);
- if (err < 0)
- goto err_context;
-
- err = fw_iso_context_start(s->context, -1, 0, 0);
- if (err < 0)
- goto err_context;
-
- mutex_unlock(&s->mutex);
-
- return 0;
-
-err_context:
- fw_iso_context_destroy(s->context);
- s->context = ERR_PTR(-1);
-err_buffer:
- iso_packets_buffer_destroy(&s->buffer, s->unit);
-err_unlock:
- mutex_unlock(&s->mutex);
-
- return err;
-}
-EXPORT_SYMBOL(amdtp_out_stream_start);
-
-/**
- * amdtp_out_stream_update - update the stream after a bus reset
- * @s: the AMDTP output stream
- */
-void amdtp_out_stream_update(struct amdtp_out_stream *s)
-{
- ACCESS_ONCE(s->source_node_id_field) =
- (fw_parent_device(s->unit)->card->node_id & 0x3f) << 24;
-}
-EXPORT_SYMBOL(amdtp_out_stream_update);
-
-/**
- * amdtp_out_stream_stop - stop sending packets
- * @s: the AMDTP output stream to stop
- *
- * All PCM and MIDI devices of the stream must be stopped before the stream
- * itself can be stopped.
- */
-void amdtp_out_stream_stop(struct amdtp_out_stream *s)
-{
- mutex_lock(&s->mutex);
-
- if (IS_ERR(s->context)) {
- mutex_unlock(&s->mutex);
- return;
- }
-
- fw_iso_context_stop(s->context);
- fw_iso_context_destroy(s->context);
- s->context = ERR_PTR(-1);
- iso_packets_buffer_destroy(&s->buffer, s->unit);
-
- mutex_unlock(&s->mutex);
-}
-EXPORT_SYMBOL(amdtp_out_stream_stop);
-
-/**
- * amdtp_out_stream_pcm_abort - abort the running PCM device
- * @s: the AMDTP stream about to be stopped
- *
- * If the isochronous stream needs to be stopped asynchronously, call this
- * function first to stop the PCM device.
- */
-void amdtp_out_stream_pcm_abort(struct amdtp_out_stream *s)
-{
- struct snd_pcm_substream *pcm;
-
- pcm = ACCESS_ONCE(s->pcm);
- if (pcm) {
- snd_pcm_stream_lock_irq(pcm);
- if (snd_pcm_running(pcm))
- snd_pcm_stop(pcm, SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock_irq(pcm);
- }
-}
-EXPORT_SYMBOL(amdtp_out_stream_pcm_abort);
diff --git a/ANDROID_3.4.5/sound/firewire/amdtp.h b/ANDROID_3.4.5/sound/firewire/amdtp.h
deleted file mode 100644
index 537a9cb8..00000000
--- a/ANDROID_3.4.5/sound/firewire/amdtp.h
+++ /dev/null
@@ -1,169 +0,0 @@
-#ifndef SOUND_FIREWIRE_AMDTP_H_INCLUDED
-#define SOUND_FIREWIRE_AMDTP_H_INCLUDED
-
-#include <linux/mutex.h>
-#include <linux/spinlock.h>
-#include "packets-buffer.h"
-
-/**
- * enum cip_out_flags - describes details of the streaming protocol
- * @CIP_NONBLOCKING: In non-blocking mode, each packet contains
- * sample_rate/8000 samples, with rounding up or down to adjust
- * for clock skew and left-over fractional samples. This should
- * be used if supported by the device.
- */
-enum cip_out_flags {
- CIP_NONBLOCKING = 0,
-};
-
-/**
- * enum cip_sfc - a stream's sample rate
- */
-enum cip_sfc {
- CIP_SFC_32000 = 0,
- CIP_SFC_44100 = 1,
- CIP_SFC_48000 = 2,
- CIP_SFC_88200 = 3,
- CIP_SFC_96000 = 4,
- CIP_SFC_176400 = 5,
- CIP_SFC_192000 = 6,
-};
-
-#define AMDTP_OUT_PCM_FORMAT_BITS (SNDRV_PCM_FMTBIT_S16 | \
- SNDRV_PCM_FMTBIT_S32)
-
-struct fw_unit;
-struct fw_iso_context;
-struct snd_pcm_substream;
-
-struct amdtp_out_stream {
- struct fw_unit *unit;
- enum cip_out_flags flags;
- struct fw_iso_context *context;
- struct mutex mutex;
-
- enum cip_sfc sfc;
- unsigned int data_block_quadlets;
- unsigned int pcm_channels;
- unsigned int midi_ports;
- void (*transfer_samples)(struct amdtp_out_stream *s,
- struct snd_pcm_substream *pcm,
- __be32 *buffer, unsigned int frames);
-
- unsigned int syt_interval;
- unsigned int source_node_id_field;
- struct iso_packets_buffer buffer;
-
- struct snd_pcm_substream *pcm;
-
- int packet_index;
- unsigned int data_block_counter;
-
- unsigned int data_block_state;
-
- unsigned int last_syt_offset;
- unsigned int syt_offset_state;
-
- unsigned int pcm_buffer_pointer;
- unsigned int pcm_period_pointer;
-};
-
-int amdtp_out_stream_init(struct amdtp_out_stream *s, struct fw_unit *unit,
- enum cip_out_flags flags);
-void amdtp_out_stream_destroy(struct amdtp_out_stream *s);
-
-void amdtp_out_stream_set_rate(struct amdtp_out_stream *s, unsigned int rate);
-unsigned int amdtp_out_stream_get_max_payload(struct amdtp_out_stream *s);
-
-int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed);
-void amdtp_out_stream_update(struct amdtp_out_stream *s);
-void amdtp_out_stream_stop(struct amdtp_out_stream *s);
-
-void amdtp_out_stream_set_pcm_format(struct amdtp_out_stream *s,
- snd_pcm_format_t format);
-void amdtp_out_stream_pcm_abort(struct amdtp_out_stream *s);
-
-/**
- * amdtp_out_stream_set_pcm - configure format of PCM samples
- * @s: the AMDTP output stream to be configured
- * @pcm_channels: the number of PCM samples in each data block, to be encoded
- * as AM824 multi-bit linear audio
- *
- * This function must not be called while the stream is running.
- */
-static inline void amdtp_out_stream_set_pcm(struct amdtp_out_stream *s,
- unsigned int pcm_channels)
-{
- s->pcm_channels = pcm_channels;
-}
-
-/**
- * amdtp_out_stream_set_midi - configure format of MIDI data
- * @s: the AMDTP output stream to be configured
- * @midi_ports: the number of MIDI ports (i.e., MPX-MIDI Data Channels)
- *
- * This function must not be called while the stream is running.
- */
-static inline void amdtp_out_stream_set_midi(struct amdtp_out_stream *s,
- unsigned int midi_ports)
-{
- s->midi_ports = midi_ports;
-}
-
-/**
- * amdtp_out_streaming_error - check for streaming error
- * @s: the AMDTP output stream
- *
- * If this function returns true, the stream's packet queue has stopped due to
- * an asynchronous error.
- */
-static inline bool amdtp_out_streaming_error(struct amdtp_out_stream *s)
-{
- return s->packet_index < 0;
-}
-
-/**
- * amdtp_out_stream_pcm_prepare - prepare PCM device for running
- * @s: the AMDTP output stream
- *
- * This function should be called from the PCM device's .prepare callback.
- */
-static inline void amdtp_out_stream_pcm_prepare(struct amdtp_out_stream *s)
-{
- s->pcm_buffer_pointer = 0;
- s->pcm_period_pointer = 0;
-}
-
-/**
- * amdtp_out_stream_pcm_trigger - start/stop playback from a PCM device
- * @s: the AMDTP output stream
- * @pcm: the PCM device to be started, or %NULL to stop the current device
- *
- * Call this function on a running isochronous stream to enable the actual
- * transmission of PCM data. This function should be called from the PCM
- * device's .trigger callback.
- */
-static inline void amdtp_out_stream_pcm_trigger(struct amdtp_out_stream *s,
- struct snd_pcm_substream *pcm)
-{
- ACCESS_ONCE(s->pcm) = pcm;
-}
-
-/**
- * amdtp_out_stream_pcm_pointer - get the PCM buffer position
- * @s: the AMDTP output stream that transports the PCM data
- *
- * Returns the current buffer position, in frames.
- */
-static inline unsigned long
-amdtp_out_stream_pcm_pointer(struct amdtp_out_stream *s)
-{
- return ACCESS_ONCE(s->pcm_buffer_pointer);
-}
-
-static inline bool cip_sfc_is_base_44100(enum cip_sfc sfc)
-{
- return sfc & 1;
-}
-
-#endif
diff --git a/ANDROID_3.4.5/sound/firewire/cmp.c b/ANDROID_3.4.5/sound/firewire/cmp.c
deleted file mode 100644
index 76294f2a..00000000
--- a/ANDROID_3.4.5/sound/firewire/cmp.c
+++ /dev/null
@@ -1,307 +0,0 @@
-/*
- * Connection Management Procedures (IEC 61883-1) helper functions
- *
- * 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/sched.h>
-#include "lib.h"
-#include "iso-resources.h"
-#include "cmp.h"
-
-#define IMPR_SPEED_MASK 0xc0000000
-#define IMPR_SPEED_SHIFT 30
-#define IMPR_XSPEED_MASK 0x00000060
-#define IMPR_XSPEED_SHIFT 5
-#define IMPR_PLUGS_MASK 0x0000001f
-
-#define IPCR_ONLINE 0x80000000
-#define IPCR_BCAST_CONN 0x40000000
-#define IPCR_P2P_CONN_MASK 0x3f000000
-#define IPCR_P2P_CONN_SHIFT 24
-#define IPCR_CHANNEL_MASK 0x003f0000
-#define IPCR_CHANNEL_SHIFT 16
-
-enum bus_reset_handling {
- ABORT_ON_BUS_RESET,
- SUCCEED_ON_BUS_RESET,
-};
-
-static __printf(2, 3)
-void cmp_error(struct cmp_connection *c, const char *fmt, ...)
-{
- va_list va;
-
- va_start(va, fmt);
- dev_err(&c->resources.unit->device, "%cPCR%u: %pV",
- 'i', c->pcr_index, &(struct va_format){ fmt, &va });
- va_end(va);
-}
-
-static int pcr_modify(struct cmp_connection *c,
- __be32 (*modify)(struct cmp_connection *c, __be32 old),
- int (*check)(struct cmp_connection *c, __be32 pcr),
- enum bus_reset_handling bus_reset_handling)
-{
- struct fw_device *device = fw_parent_device(c->resources.unit);
- int generation = c->resources.generation;
- int rcode, errors = 0;
- __be32 old_arg, buffer[2];
- int err;
-
- buffer[0] = c->last_pcr_value;
- for (;;) {
- old_arg = buffer[0];
- buffer[1] = modify(c, buffer[0]);
-
- rcode = fw_run_transaction(
- device->card, TCODE_LOCK_COMPARE_SWAP,
- device->node_id, generation, device->max_speed,
- CSR_REGISTER_BASE + CSR_IPCR(c->pcr_index),
- buffer, 8);
-
- if (rcode == RCODE_COMPLETE) {
- if (buffer[0] == old_arg) /* success? */
- break;
-
- if (check) {
- err = check(c, buffer[0]);
- if (err < 0)
- return err;
- }
- } else if (rcode == RCODE_GENERATION)
- goto bus_reset;
- else if (rcode_is_permanent_error(rcode) || ++errors >= 3)
- goto io_error;
- }
- c->last_pcr_value = buffer[1];
-
- return 0;
-
-io_error:
- cmp_error(c, "transaction failed: %s\n", rcode_string(rcode));
- return -EIO;
-
-bus_reset:
- return bus_reset_handling == ABORT_ON_BUS_RESET ? -EAGAIN : 0;
-}
-
-
-/**
- * cmp_connection_init - initializes a connection manager
- * @c: the connection manager to initialize
- * @unit: a unit of the target device
- * @ipcr_index: the index of the iPCR on the target device
- */
-int cmp_connection_init(struct cmp_connection *c,
- struct fw_unit *unit,
- unsigned int ipcr_index)
-{
- __be32 impr_be;
- u32 impr;
- int err;
-
- err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST,
- CSR_REGISTER_BASE + CSR_IMPR,
- &impr_be, 4);
- if (err < 0)
- return err;
- impr = be32_to_cpu(impr_be);
-
- if (ipcr_index >= (impr & IMPR_PLUGS_MASK))
- return -EINVAL;
-
- err = fw_iso_resources_init(&c->resources, unit);
- if (err < 0)
- return err;
-
- c->connected = false;
- mutex_init(&c->mutex);
- c->last_pcr_value = cpu_to_be32(0x80000000);
- c->pcr_index = ipcr_index;
- c->max_speed = (impr & IMPR_SPEED_MASK) >> IMPR_SPEED_SHIFT;
- if (c->max_speed == SCODE_BETA)
- c->max_speed += (impr & IMPR_XSPEED_MASK) >> IMPR_XSPEED_SHIFT;
-
- return 0;
-}
-EXPORT_SYMBOL(cmp_connection_init);
-
-/**
- * cmp_connection_destroy - free connection manager resources
- * @c: the connection manager
- */
-void cmp_connection_destroy(struct cmp_connection *c)
-{
- WARN_ON(c->connected);
- mutex_destroy(&c->mutex);
- fw_iso_resources_destroy(&c->resources);
-}
-EXPORT_SYMBOL(cmp_connection_destroy);
-
-
-static __be32 ipcr_set_modify(struct cmp_connection *c, __be32 ipcr)
-{
- ipcr &= ~cpu_to_be32(IPCR_BCAST_CONN |
- IPCR_P2P_CONN_MASK |
- IPCR_CHANNEL_MASK);
- ipcr |= cpu_to_be32(1 << IPCR_P2P_CONN_SHIFT);
- ipcr |= cpu_to_be32(c->resources.channel << IPCR_CHANNEL_SHIFT);
-
- return ipcr;
-}
-
-static int ipcr_set_check(struct cmp_connection *c, __be32 ipcr)
-{
- if (ipcr & cpu_to_be32(IPCR_BCAST_CONN |
- IPCR_P2P_CONN_MASK)) {
- cmp_error(c, "plug is already in use\n");
- return -EBUSY;
- }
- if (!(ipcr & cpu_to_be32(IPCR_ONLINE))) {
- cmp_error(c, "plug is not on-line\n");
- return -ECONNREFUSED;
- }
-
- return 0;
-}
-
-/**
- * cmp_connection_establish - establish a connection to the target
- * @c: the connection manager
- * @max_payload_bytes: the amount of data (including CIP headers) per packet
- *
- * This function establishes a point-to-point connection from the local
- * computer to the target by allocating isochronous resources (channel and
- * bandwidth) and setting the target's input plug control register. When this
- * function succeeds, the caller is responsible for starting transmitting
- * packets.
- */
-int cmp_connection_establish(struct cmp_connection *c,
- unsigned int max_payload_bytes)
-{
- int err;
-
- if (WARN_ON(c->connected))
- return -EISCONN;
-
- c->speed = min(c->max_speed,
- fw_parent_device(c->resources.unit)->max_speed);
-
- mutex_lock(&c->mutex);
-
-retry_after_bus_reset:
- err = fw_iso_resources_allocate(&c->resources,
- max_payload_bytes, c->speed);
- if (err < 0)
- goto err_mutex;
-
- err = pcr_modify(c, ipcr_set_modify, ipcr_set_check,
- ABORT_ON_BUS_RESET);
- if (err == -EAGAIN) {
- fw_iso_resources_free(&c->resources);
- goto retry_after_bus_reset;
- }
- if (err < 0)
- goto err_resources;
-
- c->connected = true;
-
- mutex_unlock(&c->mutex);
-
- return 0;
-
-err_resources:
- fw_iso_resources_free(&c->resources);
-err_mutex:
- mutex_unlock(&c->mutex);
-
- return err;
-}
-EXPORT_SYMBOL(cmp_connection_establish);
-
-/**
- * cmp_connection_update - update the connection after a bus reset
- * @c: the connection manager
- *
- * This function must be called from the driver's .update handler to reestablish
- * any connection that might have been active.
- *
- * Returns zero on success, or a negative error code. On an error, the
- * connection is broken and the caller must stop transmitting iso packets.
- */
-int cmp_connection_update(struct cmp_connection *c)
-{
- int err;
-
- mutex_lock(&c->mutex);
-
- if (!c->connected) {
- mutex_unlock(&c->mutex);
- return 0;
- }
-
- err = fw_iso_resources_update(&c->resources);
- if (err < 0)
- goto err_unconnect;
-
- err = pcr_modify(c, ipcr_set_modify, ipcr_set_check,
- SUCCEED_ON_BUS_RESET);
- if (err < 0)
- goto err_resources;
-
- mutex_unlock(&c->mutex);
-
- return 0;
-
-err_resources:
- fw_iso_resources_free(&c->resources);
-err_unconnect:
- c->connected = false;
- mutex_unlock(&c->mutex);
-
- return err;
-}
-EXPORT_SYMBOL(cmp_connection_update);
-
-
-static __be32 ipcr_break_modify(struct cmp_connection *c, __be32 ipcr)
-{
- return ipcr & ~cpu_to_be32(IPCR_BCAST_CONN | IPCR_P2P_CONN_MASK);
-}
-
-/**
- * cmp_connection_break - break the connection to the target
- * @c: the connection manager
- *
- * This function deactives the connection in the target's input plug control
- * register, and frees the isochronous resources of the connection. Before
- * calling this function, the caller should cease transmitting packets.
- */
-void cmp_connection_break(struct cmp_connection *c)
-{
- int err;
-
- mutex_lock(&c->mutex);
-
- if (!c->connected) {
- mutex_unlock(&c->mutex);
- return;
- }
-
- err = pcr_modify(c, ipcr_break_modify, NULL, SUCCEED_ON_BUS_RESET);
- if (err < 0)
- cmp_error(c, "plug is still connected\n");
-
- fw_iso_resources_free(&c->resources);
-
- c->connected = false;
-
- mutex_unlock(&c->mutex);
-}
-EXPORT_SYMBOL(cmp_connection_break);
diff --git a/ANDROID_3.4.5/sound/firewire/cmp.h b/ANDROID_3.4.5/sound/firewire/cmp.h
deleted file mode 100644
index f47de08f..00000000
--- a/ANDROID_3.4.5/sound/firewire/cmp.h
+++ /dev/null
@@ -1,41 +0,0 @@
-#ifndef SOUND_FIREWIRE_CMP_H_INCLUDED
-#define SOUND_FIREWIRE_CMP_H_INCLUDED
-
-#include <linux/mutex.h>
-#include <linux/types.h>
-#include "iso-resources.h"
-
-struct fw_unit;
-
-/**
- * struct cmp_connection - manages an isochronous connection to a device
- * @speed: the connection's actual speed
- *
- * This structure manages (using CMP) an isochronous stream from the local
- * computer to a device's input plug (iPCR).
- *
- * There is no corresponding oPCR created on the local computer, so it is not
- * possible to overlay connections on top of this one.
- */
-struct cmp_connection {
- int speed;
- /* private: */
- bool connected;
- struct mutex mutex;
- struct fw_iso_resources resources;
- __be32 last_pcr_value;
- unsigned int pcr_index;
- unsigned int max_speed;
-};
-
-int cmp_connection_init(struct cmp_connection *connection,
- struct fw_unit *unit,
- unsigned int ipcr_index);
-void cmp_connection_destroy(struct cmp_connection *connection);
-
-int cmp_connection_establish(struct cmp_connection *connection,
- unsigned int max_payload);
-int cmp_connection_update(struct cmp_connection *connection);
-void cmp_connection_break(struct cmp_connection *connection);
-
-#endif
diff --git a/ANDROID_3.4.5/sound/firewire/fcp.c b/ANDROID_3.4.5/sound/firewire/fcp.c
deleted file mode 100644
index ec578b5a..00000000
--- a/ANDROID_3.4.5/sound/firewire/fcp.c
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * Function Control Protocol (IEC 61883-1) helper functions
- *
- * 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/list.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/wait.h>
-#include <linux/delay.h>
-#include "fcp.h"
-#include "lib.h"
-
-#define CTS_AVC 0x00
-
-#define ERROR_RETRIES 3
-#define ERROR_DELAY_MS 5
-#define FCP_TIMEOUT_MS 125
-
-static DEFINE_SPINLOCK(transactions_lock);
-static LIST_HEAD(transactions);
-
-enum fcp_state {
- STATE_PENDING,
- STATE_BUS_RESET,
- STATE_COMPLETE,
-};
-
-struct fcp_transaction {
- struct list_head list;
- struct fw_unit *unit;
- void *response_buffer;
- unsigned int response_size;
- unsigned int response_match_bytes;
- enum fcp_state state;
- wait_queue_head_t wait;
-};
-
-/**
- * fcp_avc_transaction - send an AV/C command and wait for its response
- * @unit: a unit on the target device
- * @command: a buffer containing the command frame; must be DMA-able
- * @command_size: the size of @command
- * @response: a buffer for the response frame
- * @response_size: the maximum size of @response
- * @response_match_bytes: a bitmap specifying the bytes used to detect the
- * correct response frame
- *
- * This function sends a FCP command frame to the target and waits for the
- * corresponding response frame to be returned.
- *
- * Because it is possible for multiple FCP transactions to be active at the
- * same time, the correct response frame is detected by the value of certain
- * bytes. These bytes must be set in @response before calling this function,
- * and the corresponding bits must be set in @response_match_bytes.
- *
- * @command and @response can point to the same buffer.
- *
- * Asynchronous operation (INTERIM, NOTIFY) is not supported at the moment.
- *
- * Returns the actual size of the response frame, or a negative error code.
- */
-int fcp_avc_transaction(struct fw_unit *unit,
- const void *command, unsigned int command_size,
- void *response, unsigned int response_size,
- unsigned int response_match_bytes)
-{
- struct fcp_transaction t;
- int tcode, ret, tries = 0;
-
- t.unit = unit;
- t.response_buffer = response;
- t.response_size = response_size;
- t.response_match_bytes = response_match_bytes;
- t.state = STATE_PENDING;
- init_waitqueue_head(&t.wait);
-
- spin_lock_irq(&transactions_lock);
- list_add_tail(&t.list, &transactions);
- spin_unlock_irq(&transactions_lock);
-
- for (;;) {
- tcode = command_size == 4 ? TCODE_WRITE_QUADLET_REQUEST
- : TCODE_WRITE_BLOCK_REQUEST;
- ret = snd_fw_transaction(t.unit, tcode,
- CSR_REGISTER_BASE + CSR_FCP_COMMAND,
- (void *)command, command_size);
- if (ret < 0)
- break;
-
- wait_event_timeout(t.wait, t.state != STATE_PENDING,
- msecs_to_jiffies(FCP_TIMEOUT_MS));
-
- if (t.state == STATE_COMPLETE) {
- ret = t.response_size;
- break;
- } else if (t.state == STATE_BUS_RESET) {
- msleep(ERROR_DELAY_MS);
- } else if (++tries >= ERROR_RETRIES) {
- dev_err(&t.unit->device, "FCP command timed out\n");
- ret = -EIO;
- break;
- }
- }
-
- spin_lock_irq(&transactions_lock);
- list_del(&t.list);
- spin_unlock_irq(&transactions_lock);
-
- return ret;
-}
-EXPORT_SYMBOL(fcp_avc_transaction);
-
-/**
- * fcp_bus_reset - inform the target handler about a bus reset
- * @unit: the unit that might be used by fcp_avc_transaction()
- *
- * This function must be called from the driver's .update handler to inform
- * the FCP transaction handler that a bus reset has happened. Any pending FCP
- * transactions are retried.
- */
-void fcp_bus_reset(struct fw_unit *unit)
-{
- struct fcp_transaction *t;
-
- spin_lock_irq(&transactions_lock);
- list_for_each_entry(t, &transactions, list) {
- if (t->unit == unit &&
- t->state == STATE_PENDING) {
- t->state = STATE_BUS_RESET;
- wake_up(&t->wait);
- }
- }
- spin_unlock_irq(&transactions_lock);
-}
-EXPORT_SYMBOL(fcp_bus_reset);
-
-/* checks whether the response matches the masked bytes in response_buffer */
-static bool is_matching_response(struct fcp_transaction *transaction,
- const void *response, size_t length)
-{
- const u8 *p1, *p2;
- unsigned int mask, i;
-
- p1 = response;
- p2 = transaction->response_buffer;
- mask = transaction->response_match_bytes;
-
- for (i = 0; ; ++i) {
- if ((mask & 1) && p1[i] != p2[i])
- return false;
- mask >>= 1;
- if (!mask)
- return true;
- if (--length == 0)
- return false;
- }
-}
-
-static void fcp_response(struct fw_card *card, struct fw_request *request,
- int tcode, int destination, int source,
- int generation, unsigned long long offset,
- void *data, size_t length, void *callback_data)
-{
- struct fcp_transaction *t;
- unsigned long flags;
-
- if (length < 1 || (*(const u8 *)data & 0xf0) != CTS_AVC)
- return;
-
- spin_lock_irqsave(&transactions_lock, flags);
- list_for_each_entry(t, &transactions, list) {
- struct fw_device *device = fw_parent_device(t->unit);
- if (device->card != card ||
- device->generation != generation)
- continue;
- smp_rmb(); /* node_id vs. generation */
- if (device->node_id != source)
- continue;
-
- if (t->state == STATE_PENDING &&
- is_matching_response(t, data, length)) {
- t->state = STATE_COMPLETE;
- t->response_size = min((unsigned int)length,
- t->response_size);
- memcpy(t->response_buffer, data, t->response_size);
- wake_up(&t->wait);
- }
- }
- spin_unlock_irqrestore(&transactions_lock, flags);
-}
-
-static struct fw_address_handler response_register_handler = {
- .length = 0x200,
- .address_callback = fcp_response,
-};
-
-static int __init fcp_module_init(void)
-{
- static const struct fw_address_region response_register_region = {
- .start = CSR_REGISTER_BASE + CSR_FCP_RESPONSE,
- .end = CSR_REGISTER_BASE + CSR_FCP_END,
- };
-
- fw_core_add_address_handler(&response_register_handler,
- &response_register_region);
-
- return 0;
-}
-
-static void __exit fcp_module_exit(void)
-{
- WARN_ON(!list_empty(&transactions));
- fw_core_remove_address_handler(&response_register_handler);
-}
-
-module_init(fcp_module_init);
-module_exit(fcp_module_exit);
diff --git a/ANDROID_3.4.5/sound/firewire/fcp.h b/ANDROID_3.4.5/sound/firewire/fcp.h
deleted file mode 100644
index 86595688..00000000
--- a/ANDROID_3.4.5/sound/firewire/fcp.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef SOUND_FIREWIRE_FCP_H_INCLUDED
-#define SOUND_FIREWIRE_FCP_H_INCLUDED
-
-struct fw_unit;
-
-int fcp_avc_transaction(struct fw_unit *unit,
- const void *command, unsigned int command_size,
- void *response, unsigned int response_size,
- unsigned int response_match_bytes);
-void fcp_bus_reset(struct fw_unit *unit);
-
-#endif
diff --git a/ANDROID_3.4.5/sound/firewire/isight.c b/ANDROID_3.4.5/sound/firewire/isight.c
deleted file mode 100644
index d428ffed..00000000
--- a/ANDROID_3.4.5/sound/firewire/isight.c
+++ /dev/null
@@ -1,753 +0,0 @@
-/*
- * Apple iSight audio driver
- *
- * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
- */
-
-#include <asm/byteorder.h>
-#include <linux/delay.h>
-#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/string.h>
-#include <sound/control.h>
-#include <sound/core.h>
-#include <sound/initval.h>
-#include <sound/pcm.h>
-#include <sound/tlv.h>
-#include "lib.h"
-#include "iso-resources.h"
-#include "packets-buffer.h"
-
-#define OUI_APPLE 0x000a27
-#define MODEL_APPLE_ISIGHT 0x000008
-#define SW_ISIGHT_AUDIO 0x000010
-
-#define REG_AUDIO_ENABLE 0x000
-#define AUDIO_ENABLE 0x80000000
-#define REG_DEF_AUDIO_GAIN 0x204
-#define REG_GAIN_RAW_START 0x210
-#define REG_GAIN_RAW_END 0x214
-#define REG_GAIN_DB_START 0x218
-#define REG_GAIN_DB_END 0x21c
-#define REG_SAMPLE_RATE_INQUIRY 0x280
-#define REG_ISO_TX_CONFIG 0x300
-#define SPEED_SHIFT 16
-#define REG_SAMPLE_RATE 0x400
-#define RATE_48000 0x80000000
-#define REG_GAIN 0x500
-#define REG_MUTE 0x504
-
-#define MAX_FRAMES_PER_PACKET 475
-
-#define QUEUE_LENGTH 20
-
-struct isight {
- struct snd_card *card;
- struct fw_unit *unit;
- struct fw_device *device;
- u64 audio_base;
- struct snd_pcm_substream *pcm;
- struct mutex mutex;
- struct iso_packets_buffer buffer;
- struct fw_iso_resources resources;
- struct fw_iso_context *context;
- bool pcm_active;
- bool pcm_running;
- bool first_packet;
- int packet_index;
- u32 total_samples;
- unsigned int buffer_pointer;
- unsigned int period_counter;
- s32 gain_min, gain_max;
- unsigned int gain_tlv[4];
-};
-
-struct audio_payload {
- __be32 sample_count;
- __be32 signature;
- __be32 sample_total;
- __be32 reserved;
- __be16 samples[2 * MAX_FRAMES_PER_PACKET];
-};
-
-MODULE_DESCRIPTION("iSight audio driver");
-MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
-MODULE_LICENSE("GPL v2");
-
-static struct fw_iso_packet audio_packet = {
- .payload_length = sizeof(struct audio_payload),
- .interrupt = 1,
- .header_length = 4,
-};
-
-static void isight_update_pointers(struct isight *isight, unsigned int count)
-{
- struct snd_pcm_runtime *runtime = isight->pcm->runtime;
- unsigned int ptr;
-
- smp_wmb(); /* update buffer data before buffer pointer */
-
- ptr = isight->buffer_pointer;
- ptr += count;
- if (ptr >= runtime->buffer_size)
- ptr -= runtime->buffer_size;
- ACCESS_ONCE(isight->buffer_pointer) = ptr;
-
- isight->period_counter += count;
- if (isight->period_counter >= runtime->period_size) {
- isight->period_counter -= runtime->period_size;
- snd_pcm_period_elapsed(isight->pcm);
- }
-}
-
-static void isight_samples(struct isight *isight,
- const __be16 *samples, unsigned int count)
-{
- struct snd_pcm_runtime *runtime;
- unsigned int count1;
-
- if (!ACCESS_ONCE(isight->pcm_running))
- return;
-
- runtime = isight->pcm->runtime;
- if (isight->buffer_pointer + count <= runtime->buffer_size) {
- memcpy(runtime->dma_area + isight->buffer_pointer * 4,
- samples, count * 4);
- } else {
- count1 = runtime->buffer_size - isight->buffer_pointer;
- memcpy(runtime->dma_area + isight->buffer_pointer * 4,
- samples, count1 * 4);
- samples += count1 * 2;
- memcpy(runtime->dma_area, samples, (count - count1) * 4);
- }
-
- isight_update_pointers(isight, count);
-}
-
-static void isight_pcm_abort(struct isight *isight)
-{
- unsigned long flags;
-
- if (ACCESS_ONCE(isight->pcm_active)) {
- snd_pcm_stream_lock_irqsave(isight->pcm, flags);
- if (snd_pcm_running(isight->pcm))
- snd_pcm_stop(isight->pcm, SNDRV_PCM_STATE_XRUN);
- snd_pcm_stream_unlock_irqrestore(isight->pcm, flags);
- }
-}
-
-static void isight_dropped_samples(struct isight *isight, unsigned int total)
-{
- struct snd_pcm_runtime *runtime;
- u32 dropped;
- unsigned int count1;
-
- if (!ACCESS_ONCE(isight->pcm_running))
- return;
-
- runtime = isight->pcm->runtime;
- dropped = total - isight->total_samples;
- if (dropped < runtime->buffer_size) {
- if (isight->buffer_pointer + dropped <= runtime->buffer_size) {
- memset(runtime->dma_area + isight->buffer_pointer * 4,
- 0, dropped * 4);
- } else {
- count1 = runtime->buffer_size - isight->buffer_pointer;
- memset(runtime->dma_area + isight->buffer_pointer * 4,
- 0, count1 * 4);
- memset(runtime->dma_area, 0, (dropped - count1) * 4);
- }
- isight_update_pointers(isight, dropped);
- } else {
- isight_pcm_abort(isight);
- }
-}
-
-static void isight_packet(struct fw_iso_context *context, u32 cycle,
- size_t header_length, void *header, void *data)
-{
- struct isight *isight = data;
- const struct audio_payload *payload;
- unsigned int index, length, count, total;
- int err;
-
- if (isight->packet_index < 0)
- return;
- index = isight->packet_index;
- payload = isight->buffer.packets[index].buffer;
- length = be32_to_cpup(header) >> 16;
-
- if (likely(length >= 16 &&
- payload->signature == cpu_to_be32(0x73676874/*"sght"*/))) {
- count = be32_to_cpu(payload->sample_count);
- if (likely(count <= (length - 16) / 4)) {
- total = be32_to_cpu(payload->sample_total);
- if (unlikely(total != isight->total_samples)) {
- if (!isight->first_packet)
- isight_dropped_samples(isight, total);
- isight->first_packet = false;
- isight->total_samples = total;
- }
-
- isight_samples(isight, payload->samples, count);
- isight->total_samples += count;
- }
- }
-
- err = fw_iso_context_queue(isight->context, &audio_packet,
- &isight->buffer.iso_buffer,
- isight->buffer.packets[index].offset);
- if (err < 0) {
- dev_err(&isight->unit->device, "queueing error: %d\n", err);
- isight_pcm_abort(isight);
- isight->packet_index = -1;
- return;
- }
- fw_iso_context_queue_flush(isight->context);
-
- if (++index >= QUEUE_LENGTH)
- index = 0;
- isight->packet_index = index;
-}
-
-static int isight_connect(struct isight *isight)
-{
- int ch, err, rcode, errors = 0;
- __be32 value;
-
-retry_after_bus_reset:
- ch = fw_iso_resources_allocate(&isight->resources,
- sizeof(struct audio_payload),
- isight->device->max_speed);
- if (ch < 0) {
- err = ch;
- goto error;
- }
-
- value = cpu_to_be32(ch | (isight->device->max_speed << SPEED_SHIFT));
- for (;;) {
- rcode = fw_run_transaction(
- isight->device->card,
- TCODE_WRITE_QUADLET_REQUEST,
- isight->device->node_id,
- isight->resources.generation,
- isight->device->max_speed,
- isight->audio_base + REG_ISO_TX_CONFIG,
- &value, 4);
- if (rcode == RCODE_COMPLETE) {
- return 0;
- } else if (rcode == RCODE_GENERATION) {
- fw_iso_resources_free(&isight->resources);
- goto retry_after_bus_reset;
- } else if (rcode_is_permanent_error(rcode) || ++errors >= 3) {
- err = -EIO;
- goto err_resources;
- }
- msleep(5);
- }
-
-err_resources:
- fw_iso_resources_free(&isight->resources);
-error:
- return err;
-}
-
-static int isight_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 = SNDRV_PCM_FMTBIT_S16_BE,
- .rates = SNDRV_PCM_RATE_48000,
- .rate_min = 48000,
- .rate_max = 48000,
- .channels_min = 2,
- .channels_max = 2,
- .buffer_bytes_max = 4 * 1024 * 1024,
- .period_bytes_min = MAX_FRAMES_PER_PACKET * 4,
- .period_bytes_max = 1024 * 1024,
- .periods_min = 2,
- .periods_max = UINT_MAX,
- };
- struct isight *isight = substream->private_data;
-
- substream->runtime->hw = hardware;
-
- return iso_packets_buffer_init(&isight->buffer, isight->unit,
- QUEUE_LENGTH,
- sizeof(struct audio_payload),
- DMA_FROM_DEVICE);
-}
-
-static int isight_close(struct snd_pcm_substream *substream)
-{
- struct isight *isight = substream->private_data;
-
- iso_packets_buffer_destroy(&isight->buffer, isight->unit);
-
- return 0;
-}
-
-static int isight_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *hw_params)
-{
- struct isight *isight = substream->private_data;
- int err;
-
- err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
- params_buffer_bytes(hw_params));
- if (err < 0)
- return err;
-
- ACCESS_ONCE(isight->pcm_active) = true;
-
- return 0;
-}
-
-static int reg_read(struct isight *isight, int offset, __be32 *value)
-{
- return snd_fw_transaction(isight->unit, TCODE_READ_QUADLET_REQUEST,
- isight->audio_base + offset, value, 4);
-}
-
-static int reg_write(struct isight *isight, int offset, __be32 value)
-{
- return snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST,
- isight->audio_base + offset, &value, 4);
-}
-
-static void isight_stop_streaming(struct isight *isight)
-{
- if (!isight->context)
- return;
-
- fw_iso_context_stop(isight->context);
- fw_iso_context_destroy(isight->context);
- isight->context = NULL;
- fw_iso_resources_free(&isight->resources);
- reg_write(isight, REG_AUDIO_ENABLE, 0);
-}
-
-static int isight_hw_free(struct snd_pcm_substream *substream)
-{
- struct isight *isight = substream->private_data;
-
- ACCESS_ONCE(isight->pcm_active) = false;
-
- mutex_lock(&isight->mutex);
- isight_stop_streaming(isight);
- mutex_unlock(&isight->mutex);
-
- return snd_pcm_lib_free_vmalloc_buffer(substream);
-}
-
-static int isight_start_streaming(struct isight *isight)
-{
- unsigned int i;
- int err;
-
- if (isight->context) {
- if (isight->packet_index < 0)
- isight_stop_streaming(isight);
- else
- return 0;
- }
-
- err = reg_write(isight, REG_SAMPLE_RATE, cpu_to_be32(RATE_48000));
- if (err < 0)
- goto error;
-
- err = isight_connect(isight);
- if (err < 0)
- goto error;
-
- err = reg_write(isight, REG_AUDIO_ENABLE, cpu_to_be32(AUDIO_ENABLE));
- if (err < 0)
- goto err_resources;
-
- isight->context = fw_iso_context_create(isight->device->card,
- FW_ISO_CONTEXT_RECEIVE,
- isight->resources.channel,
- isight->device->max_speed,
- 4, isight_packet, isight);
- if (IS_ERR(isight->context)) {
- err = PTR_ERR(isight->context);
- isight->context = NULL;
- goto err_resources;
- }
-
- for (i = 0; i < QUEUE_LENGTH; ++i) {
- err = fw_iso_context_queue(isight->context, &audio_packet,
- &isight->buffer.iso_buffer,
- isight->buffer.packets[i].offset);
- if (err < 0)
- goto err_context;
- }
-
- isight->first_packet = true;
- isight->packet_index = 0;
-
- err = fw_iso_context_start(isight->context, -1, 0,
- FW_ISO_CONTEXT_MATCH_ALL_TAGS/*?*/);
- if (err < 0)
- goto err_context;
-
- return 0;
-
-err_context:
- fw_iso_context_destroy(isight->context);
- isight->context = NULL;
-err_resources:
- fw_iso_resources_free(&isight->resources);
- reg_write(isight, REG_AUDIO_ENABLE, 0);
-error:
- return err;
-}
-
-static int isight_prepare(struct snd_pcm_substream *substream)
-{
- struct isight *isight = substream->private_data;
- int err;
-
- isight->buffer_pointer = 0;
- isight->period_counter = 0;
-
- mutex_lock(&isight->mutex);
- err = isight_start_streaming(isight);
- mutex_unlock(&isight->mutex);
-
- return err;
-}
-
-static int isight_trigger(struct snd_pcm_substream *substream, int cmd)
-{
- struct isight *isight = substream->private_data;
-
- switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
- ACCESS_ONCE(isight->pcm_running) = true;
- break;
- case SNDRV_PCM_TRIGGER_STOP:
- ACCESS_ONCE(isight->pcm_running) = false;
- break;
- default:
- return -EINVAL;
- }
- return 0;
-}
-
-static snd_pcm_uframes_t isight_pointer(struct snd_pcm_substream *substream)
-{
- struct isight *isight = substream->private_data;
-
- return ACCESS_ONCE(isight->buffer_pointer);
-}
-
-static int isight_create_pcm(struct isight *isight)
-{
- static struct snd_pcm_ops ops = {
- .open = isight_open,
- .close = isight_close,
- .ioctl = snd_pcm_lib_ioctl,
- .hw_params = isight_hw_params,
- .hw_free = isight_hw_free,
- .prepare = isight_prepare,
- .trigger = isight_trigger,
- .pointer = isight_pointer,
- .page = snd_pcm_lib_get_vmalloc_page,
- .mmap = snd_pcm_lib_mmap_vmalloc,
- };
- struct snd_pcm *pcm;
- int err;
-
- err = snd_pcm_new(isight->card, "iSight", 0, 0, 1, &pcm);
- if (err < 0)
- return err;
- pcm->private_data = isight;
- strcpy(pcm->name, "iSight");
- isight->pcm = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
- isight->pcm->ops = &ops;
-
- return 0;
-}
-
-static int isight_gain_info(struct snd_kcontrol *ctl,
- struct snd_ctl_elem_info *info)
-{
- struct isight *isight = ctl->private_data;
-
- info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
- info->count = 1;
- info->value.integer.min = isight->gain_min;
- info->value.integer.max = isight->gain_max;
-
- return 0;
-}
-
-static int isight_gain_get(struct snd_kcontrol *ctl,
- struct snd_ctl_elem_value *value)
-{
- struct isight *isight = ctl->private_data;
- __be32 gain;
- int err;
-
- err = reg_read(isight, REG_GAIN, &gain);
- if (err < 0)
- return err;
-
- value->value.integer.value[0] = (s32)be32_to_cpu(gain);
-
- return 0;
-}
-
-static int isight_gain_put(struct snd_kcontrol *ctl,
- struct snd_ctl_elem_value *value)
-{
- struct isight *isight = ctl->private_data;
-
- if (value->value.integer.value[0] < isight->gain_min ||
- value->value.integer.value[0] > isight->gain_max)
- return -EINVAL;
-
- return reg_write(isight, REG_GAIN,
- cpu_to_be32(value->value.integer.value[0]));
-}
-
-static int isight_mute_get(struct snd_kcontrol *ctl,
- struct snd_ctl_elem_value *value)
-{
- struct isight *isight = ctl->private_data;
- __be32 mute;
- int err;
-
- err = reg_read(isight, REG_MUTE, &mute);
- if (err < 0)
- return err;
-
- value->value.integer.value[0] = !mute;
-
- return 0;
-}
-
-static int isight_mute_put(struct snd_kcontrol *ctl,
- struct snd_ctl_elem_value *value)
-{
- struct isight *isight = ctl->private_data;
-
- return reg_write(isight, REG_MUTE,
- (__force __be32)!value->value.integer.value[0]);
-}
-
-static int isight_create_mixer(struct isight *isight)
-{
- static const struct snd_kcontrol_new gain_control = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .name = "Mic Capture Volume",
- .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
- SNDRV_CTL_ELEM_ACCESS_TLV_READ,
- .info = isight_gain_info,
- .get = isight_gain_get,
- .put = isight_gain_put,
- };
- static const struct snd_kcontrol_new mute_control = {
- .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
- .name = "Mic Capture Switch",
- .info = snd_ctl_boolean_mono_info,
- .get = isight_mute_get,
- .put = isight_mute_put,
- };
- __be32 value;
- struct snd_kcontrol *ctl;
- int err;
-
- err = reg_read(isight, REG_GAIN_RAW_START, &value);
- if (err < 0)
- return err;
- isight->gain_min = be32_to_cpu(value);
-
- err = reg_read(isight, REG_GAIN_RAW_END, &value);
- if (err < 0)
- return err;
- isight->gain_max = be32_to_cpu(value);
-
- isight->gain_tlv[0] = SNDRV_CTL_TLVT_DB_MINMAX;
- isight->gain_tlv[1] = 2 * sizeof(unsigned int);
-
- err = reg_read(isight, REG_GAIN_DB_START, &value);
- if (err < 0)
- return err;
- isight->gain_tlv[2] = (s32)be32_to_cpu(value) * 100;
-
- err = reg_read(isight, REG_GAIN_DB_END, &value);
- if (err < 0)
- return err;
- isight->gain_tlv[3] = (s32)be32_to_cpu(value) * 100;
-
- ctl = snd_ctl_new1(&gain_control, isight);
- if (ctl)
- ctl->tlv.p = isight->gain_tlv;
- err = snd_ctl_add(isight->card, ctl);
- if (err < 0)
- return err;
-
- err = snd_ctl_add(isight->card, snd_ctl_new1(&mute_control, isight));
- if (err < 0)
- return err;
-
- return 0;
-}
-
-static void isight_card_free(struct snd_card *card)
-{
- struct isight *isight = card->private_data;
-
- fw_iso_resources_destroy(&isight->resources);
- fw_unit_put(isight->unit);
- mutex_destroy(&isight->mutex);
-}
-
-static u64 get_unit_base(struct fw_unit *unit)
-{
- struct fw_csr_iterator i;
- int key, value;
-
- fw_csr_iterator_init(&i, unit->directory);
- while (fw_csr_iterator_next(&i, &key, &value))
- if (key == CSR_OFFSET)
- return CSR_REGISTER_BASE + value * 4;
- return 0;
-}
-
-static int isight_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 isight *isight;
- int err;
-
- err = snd_card_create(-1, NULL, THIS_MODULE, sizeof(*isight), &card);
- if (err < 0)
- return err;
- snd_card_set_dev(card, unit_dev);
-
- isight = card->private_data;
- isight->card = card;
- mutex_init(&isight->mutex);
- isight->unit = fw_unit_get(unit);
- isight->device = fw_dev;
- isight->audio_base = get_unit_base(unit);
- if (!isight->audio_base) {
- dev_err(&unit->device, "audio unit base not found\n");
- err = -ENXIO;
- goto err_unit;
- }
- fw_iso_resources_init(&isight->resources, unit);
-
- card->private_free = isight_card_free;
-
- strcpy(card->driver, "iSight");
- strcpy(card->shortname, "Apple iSight");
- snprintf(card->longname, sizeof(card->longname),
- "Apple iSight (GUID %08x%08x) at %s, S%d",
- fw_dev->config_rom[3], fw_dev->config_rom[4],
- dev_name(&unit->device), 100 << fw_dev->max_speed);
- strcpy(card->mixername, "iSight");
-
- err = isight_create_pcm(isight);
- if (err < 0)
- goto error;
-
- err = isight_create_mixer(isight);
- if (err < 0)
- goto error;
-
- err = snd_card_register(card);
- if (err < 0)
- goto error;
-
- dev_set_drvdata(unit_dev, isight);
-
- return 0;
-
-err_unit:
- fw_unit_put(isight->unit);
- mutex_destroy(&isight->mutex);
-error:
- snd_card_free(card);
- return err;
-}
-
-static int isight_remove(struct device *dev)
-{
- struct isight *isight = dev_get_drvdata(dev);
-
- isight_pcm_abort(isight);
-
- snd_card_disconnect(isight->card);
-
- mutex_lock(&isight->mutex);
- isight_stop_streaming(isight);
- mutex_unlock(&isight->mutex);
-
- snd_card_free_when_closed(isight->card);
-
- return 0;
-}
-
-static void isight_bus_reset(struct fw_unit *unit)
-{
- struct isight *isight = dev_get_drvdata(&unit->device);
-
- if (fw_iso_resources_update(&isight->resources) < 0) {
- isight_pcm_abort(isight);
-
- mutex_lock(&isight->mutex);
- isight_stop_streaming(isight);
- mutex_unlock(&isight->mutex);
- }
-}
-
-static const struct ieee1394_device_id isight_id_table[] = {
- {
- .match_flags = IEEE1394_MATCH_SPECIFIER_ID |
- IEEE1394_MATCH_VERSION,
- .specifier_id = OUI_APPLE,
- .version = SW_ISIGHT_AUDIO,
- },
- { }
-};
-MODULE_DEVICE_TABLE(ieee1394, isight_id_table);
-
-static struct fw_driver isight_driver = {
- .driver = {
- .owner = THIS_MODULE,
- .name = KBUILD_MODNAME,
- .bus = &fw_bus_type,
- .probe = isight_probe,
- .remove = isight_remove,
- },
- .update = isight_bus_reset,
- .id_table = isight_id_table,
-};
-
-static int __init alsa_isight_init(void)
-{
- return driver_register(&isight_driver.driver);
-}
-
-static void __exit alsa_isight_exit(void)
-{
- driver_unregister(&isight_driver.driver);
-}
-
-module_init(alsa_isight_init);
-module_exit(alsa_isight_exit);
diff --git a/ANDROID_3.4.5/sound/firewire/iso-resources.c b/ANDROID_3.4.5/sound/firewire/iso-resources.c
deleted file mode 100644
index 5f17b77e..00000000
--- a/ANDROID_3.4.5/sound/firewire/iso-resources.c
+++ /dev/null
@@ -1,232 +0,0 @@
-/*
- * isochronous resources helper functions
- *
- * 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/export.h>
-#include <linux/jiffies.h>
-#include <linux/mutex.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include "iso-resources.h"
-
-/**
- * fw_iso_resources_init - initializes a &struct fw_iso_resources
- * @r: the resource manager to initialize
- * @unit: the device unit for which the resources will be needed
- *
- * If the device does not support all channel numbers, change @r->channels_mask
- * after calling this function.
- */
-int fw_iso_resources_init(struct fw_iso_resources *r, struct fw_unit *unit)
-{
- r->channels_mask = ~0uLL;
- r->unit = fw_unit_get(unit);
- mutex_init(&r->mutex);
- r->allocated = false;
-
- return 0;
-}
-EXPORT_SYMBOL(fw_iso_resources_init);
-
-/**
- * fw_iso_resources_destroy - destroy a resource manager
- * @r: the resource manager that is no longer needed
- */
-void fw_iso_resources_destroy(struct fw_iso_resources *r)
-{
- WARN_ON(r->allocated);
- mutex_destroy(&r->mutex);
- fw_unit_put(r->unit);
-}
-EXPORT_SYMBOL(fw_iso_resources_destroy);
-
-static unsigned int packet_bandwidth(unsigned int max_payload_bytes, int speed)
-{
- unsigned int bytes, s400_bytes;
-
- /* iso packets have three header quadlets and quadlet-aligned payload */
- bytes = 3 * 4 + ALIGN(max_payload_bytes, 4);
-
- /* convert to bandwidth units (quadlets at S1600 = bytes at S400) */
- if (speed <= SCODE_400)
- s400_bytes = bytes * (1 << (SCODE_400 - speed));
- else
- s400_bytes = DIV_ROUND_UP(bytes, 1 << (speed - SCODE_400));
-
- return s400_bytes;
-}
-
-static int current_bandwidth_overhead(struct fw_card *card)
-{
- /*
- * Under the usual pessimistic assumption (cable length 4.5 m), the
- * isochronous overhead for N cables is 1.797 µs + N * 0.494 µs, or
- * 88.3 + N * 24.3 in bandwidth units.
- *
- * The calculation below tries to deduce N from the current gap count.
- * If the gap count has been optimized by measuring the actual packet
- * transmission time, this derived overhead should be near the actual
- * overhead as well.
- */
- return card->gap_count < 63 ? card->gap_count * 97 / 10 + 89 : 512;
-}
-
-static int wait_isoch_resource_delay_after_bus_reset(struct fw_card *card)
-{
- for (;;) {
- s64 delay = (card->reset_jiffies + HZ) - get_jiffies_64();
- if (delay <= 0)
- return 0;
- if (schedule_timeout_interruptible(delay) > 0)
- return -ERESTARTSYS;
- }
-}
-
-/**
- * fw_iso_resources_allocate - allocate isochronous channel and bandwidth
- * @r: the resource manager
- * @max_payload_bytes: the amount of data (including CIP headers) per packet
- * @speed: the speed (e.g., SCODE_400) at which the packets will be sent
- *
- * This function allocates one isochronous channel and enough bandwidth for the
- * specified packet size.
- *
- * Returns the channel number that the caller must use for streaming, or
- * a negative error code. Due to potentionally long delays, this function is
- * interruptible and can return -ERESTARTSYS. On success, the caller is
- * responsible for calling fw_iso_resources_update() on bus resets, and
- * fw_iso_resources_free() when the resources are not longer needed.
- */
-int fw_iso_resources_allocate(struct fw_iso_resources *r,
- unsigned int max_payload_bytes, int speed)
-{
- struct fw_card *card = fw_parent_device(r->unit)->card;
- int bandwidth, channel, err;
-
- if (WARN_ON(r->allocated))
- return -EBADFD;
-
- r->bandwidth = packet_bandwidth(max_payload_bytes, speed);
-
-retry_after_bus_reset:
- spin_lock_irq(&card->lock);
- r->generation = card->generation;
- r->bandwidth_overhead = current_bandwidth_overhead(card);
- spin_unlock_irq(&card->lock);
-
- err = wait_isoch_resource_delay_after_bus_reset(card);
- if (err < 0)
- return err;
-
- mutex_lock(&r->mutex);
-
- bandwidth = r->bandwidth + r->bandwidth_overhead;
- fw_iso_resource_manage(card, r->generation, r->channels_mask,
- &channel, &bandwidth, true);
- if (channel == -EAGAIN) {
- mutex_unlock(&r->mutex);
- goto retry_after_bus_reset;
- }
- if (channel >= 0) {
- r->channel = channel;
- r->allocated = true;
- } else {
- if (channel == -EBUSY)
- dev_err(&r->unit->device,
- "isochronous resources exhausted\n");
- else
- dev_err(&r->unit->device,
- "isochronous resource allocation failed\n");
- }
-
- mutex_unlock(&r->mutex);
-
- return channel;
-}
-EXPORT_SYMBOL(fw_iso_resources_allocate);
-
-/**
- * fw_iso_resources_update - update resource allocations after a bus reset
- * @r: the resource manager
- *
- * This function must be called from the driver's .update handler to reallocate
- * any resources that were allocated before the bus reset. It is safe to call
- * this function if no resources are currently allocated.
- *
- * Returns a negative error code on failure. If this happens, the caller must
- * stop streaming.
- */
-int fw_iso_resources_update(struct fw_iso_resources *r)
-{
- struct fw_card *card = fw_parent_device(r->unit)->card;
- int bandwidth, channel;
-
- mutex_lock(&r->mutex);
-
- if (!r->allocated) {
- mutex_unlock(&r->mutex);
- return 0;
- }
-
- spin_lock_irq(&card->lock);
- r->generation = card->generation;
- r->bandwidth_overhead = current_bandwidth_overhead(card);
- spin_unlock_irq(&card->lock);
-
- bandwidth = r->bandwidth + r->bandwidth_overhead;
-
- fw_iso_resource_manage(card, r->generation, 1uLL << r->channel,
- &channel, &bandwidth, true);
- /*
- * When another bus reset happens, pretend that the allocation
- * succeeded; we will try again for the new generation later.
- */
- if (channel < 0 && channel != -EAGAIN) {
- r->allocated = false;
- if (channel == -EBUSY)
- dev_err(&r->unit->device,
- "isochronous resources exhausted\n");
- else
- dev_err(&r->unit->device,
- "isochronous resource allocation failed\n");
- }
-
- mutex_unlock(&r->mutex);
-
- return channel;
-}
-EXPORT_SYMBOL(fw_iso_resources_update);
-
-/**
- * fw_iso_resources_free - frees allocated resources
- * @r: the resource manager
- *
- * This function deallocates the channel and bandwidth, if allocated.
- */
-void fw_iso_resources_free(struct fw_iso_resources *r)
-{
- struct fw_card *card = fw_parent_device(r->unit)->card;
- int bandwidth, channel;
-
- mutex_lock(&r->mutex);
-
- if (r->allocated) {
- bandwidth = r->bandwidth + r->bandwidth_overhead;
- fw_iso_resource_manage(card, r->generation, 1uLL << r->channel,
- &channel, &bandwidth, false);
- if (channel < 0)
- dev_err(&r->unit->device,
- "isochronous resource deallocation failed\n");
-
- r->allocated = false;
- }
-
- mutex_unlock(&r->mutex);
-}
-EXPORT_SYMBOL(fw_iso_resources_free);
diff --git a/ANDROID_3.4.5/sound/firewire/iso-resources.h b/ANDROID_3.4.5/sound/firewire/iso-resources.h
deleted file mode 100644
index 5a9af7c6..00000000
--- a/ANDROID_3.4.5/sound/firewire/iso-resources.h
+++ /dev/null
@@ -1,38 +0,0 @@
-#ifndef SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED
-#define SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED
-
-#include <linux/mutex.h>
-#include <linux/types.h>
-
-struct fw_unit;
-
-/**
- * struct fw_iso_resources - manages channel/bandwidth allocation
- * @channels_mask: if the device does not support all channel numbers, set this
- * bit mask to something else than the default (all ones)
- *
- * This structure manages (de)allocation of isochronous resources (channel and
- * bandwidth) for one isochronous stream.
- */
-struct fw_iso_resources {
- u64 channels_mask;
- /* private: */
- struct fw_unit *unit;
- struct mutex mutex;
- unsigned int channel;
- unsigned int bandwidth; /* in bandwidth units, without overhead */
- unsigned int bandwidth_overhead;
- int generation; /* in which allocation is valid */
- bool allocated;
-};
-
-int fw_iso_resources_init(struct fw_iso_resources *r,
- struct fw_unit *unit);
-void fw_iso_resources_destroy(struct fw_iso_resources *r);
-
-int fw_iso_resources_allocate(struct fw_iso_resources *r,
- unsigned int max_payload_bytes, int speed);
-int fw_iso_resources_update(struct fw_iso_resources *r);
-void fw_iso_resources_free(struct fw_iso_resources *r);
-
-#endif
diff --git a/ANDROID_3.4.5/sound/firewire/lib.c b/ANDROID_3.4.5/sound/firewire/lib.c
deleted file mode 100644
index 4750cea2..00000000
--- a/ANDROID_3.4.5/sound/firewire/lib.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * miscellaneous helper functions
- *
- * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
- */
-
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/firewire.h>
-#include <linux/module.h>
-#include "lib.h"
-
-#define ERROR_RETRY_DELAY_MS 5
-
-/**
- * rcode_string - convert a firewire result code to a string
- * @rcode: the result
- */
-const char *rcode_string(unsigned int rcode)
-{
- static const char *const names[] = {
- [RCODE_COMPLETE] = "complete",
- [RCODE_CONFLICT_ERROR] = "conflict error",
- [RCODE_DATA_ERROR] = "data error",
- [RCODE_TYPE_ERROR] = "type error",
- [RCODE_ADDRESS_ERROR] = "address error",
- [RCODE_SEND_ERROR] = "send error",
- [RCODE_CANCELLED] = "cancelled",
- [RCODE_BUSY] = "busy",
- [RCODE_GENERATION] = "generation",
- [RCODE_NO_ACK] = "no ack",
- };
-
- if (rcode < ARRAY_SIZE(names) && names[rcode])
- return names[rcode];
- else
- return "unknown";
-}
-EXPORT_SYMBOL(rcode_string);
-
-/**
- * snd_fw_transaction - send a request and wait for its completion
- * @unit: the driver's unit on the target device
- * @tcode: the transaction code
- * @offset: the address in the target's address space
- * @buffer: input/output data
- * @length: length of @buffer
- *
- * Submits an asynchronous request to the target device, and waits for the
- * response. The node ID and the current generation are derived from @unit.
- * On a bus reset or an error, the transaction is retried a few times.
- * Returns zero on success, or a negative error code.
- */
-int snd_fw_transaction(struct fw_unit *unit, int tcode,
- u64 offset, void *buffer, size_t length)
-{
- struct fw_device *device = fw_parent_device(unit);
- int generation, rcode, tries = 0;
-
- for (;;) {
- generation = device->generation;
- smp_rmb(); /* node_id vs. generation */
- rcode = fw_run_transaction(device->card, tcode,
- device->node_id, generation,
- device->max_speed, offset,
- buffer, length);
-
- if (rcode == RCODE_COMPLETE)
- return 0;
-
- if (rcode_is_permanent_error(rcode) || ++tries >= 3) {
- dev_err(&unit->device, "transaction failed: %s\n",
- rcode_string(rcode));
- return -EIO;
- }
-
- msleep(ERROR_RETRY_DELAY_MS);
- }
-}
-EXPORT_SYMBOL(snd_fw_transaction);
-
-MODULE_DESCRIPTION("FireWire audio helper functions");
-MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
-MODULE_LICENSE("GPL v2");
diff --git a/ANDROID_3.4.5/sound/firewire/lib.h b/ANDROID_3.4.5/sound/firewire/lib.h
deleted file mode 100644
index 064f3fd9..00000000
--- a/ANDROID_3.4.5/sound/firewire/lib.h
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef SOUND_FIREWIRE_LIB_H_INCLUDED
-#define SOUND_FIREWIRE_LIB_H_INCLUDED
-
-#include <linux/firewire-constants.h>
-#include <linux/types.h>
-
-struct fw_unit;
-
-int snd_fw_transaction(struct fw_unit *unit, int tcode,
- u64 offset, void *buffer, size_t length);
-const char *rcode_string(unsigned int rcode);
-
-/* returns true if retrying the transaction would not make sense */
-static inline bool rcode_is_permanent_error(int rcode)
-{
- return rcode == RCODE_TYPE_ERROR || rcode == RCODE_ADDRESS_ERROR;
-}
-
-#endif
diff --git a/ANDROID_3.4.5/sound/firewire/packets-buffer.c b/ANDROID_3.4.5/sound/firewire/packets-buffer.c
deleted file mode 100644
index ea150667..00000000
--- a/ANDROID_3.4.5/sound/firewire/packets-buffer.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * helpers for managing a buffer for many packets
- *
- * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
- * Licensed under the terms of the GNU General Public License, version 2.
- */
-
-#include <linux/firewire.h>
-#include <linux/export.h>
-#include <linux/slab.h>
-#include "packets-buffer.h"
-
-/**
- * iso_packets_buffer_init - allocates the memory for packets
- * @b: the buffer structure to initialize
- * @unit: the device at the other end of the stream
- * @count: the number of packets
- * @packet_size: the (maximum) size of a packet, in bytes
- * @direction: %DMA_TO_DEVICE or %DMA_FROM_DEVICE
- */
-int iso_packets_buffer_init(struct iso_packets_buffer *b, struct fw_unit *unit,
- unsigned int count, unsigned int packet_size,
- enum dma_data_direction direction)
-{
- unsigned int packets_per_page, pages;
- unsigned int i, page_index, offset_in_page;
- void *p;
- int err;
-
- b->packets = kmalloc(count * sizeof(*b->packets), GFP_KERNEL);
- if (!b->packets) {
- err = -ENOMEM;
- goto error;
- }
-
- packet_size = L1_CACHE_ALIGN(packet_size);
- packets_per_page = PAGE_SIZE / packet_size;
- if (WARN_ON(!packets_per_page)) {
- err = -EINVAL;
- goto error;
- }
- pages = DIV_ROUND_UP(count, packets_per_page);
-
- err = fw_iso_buffer_init(&b->iso_buffer, fw_parent_device(unit)->card,
- pages, direction);
- if (err < 0)
- goto err_packets;
-
- for (i = 0; i < count; ++i) {
- page_index = i / packets_per_page;
- p = page_address(b->iso_buffer.pages[page_index]);
- offset_in_page = (i % packets_per_page) * packet_size;
- b->packets[i].buffer = p + offset_in_page;
- b->packets[i].offset = page_index * PAGE_SIZE + offset_in_page;
- }
-
- return 0;
-
-err_packets:
- kfree(b->packets);
-error:
- return err;
-}
-EXPORT_SYMBOL(iso_packets_buffer_init);
-
-/**
- * iso_packets_buffer_destroy - frees packet buffer resources
- * @b: the buffer structure to free
- * @unit: the device at the other end of the stream
- */
-void iso_packets_buffer_destroy(struct iso_packets_buffer *b,
- struct fw_unit *unit)
-{
- fw_iso_buffer_destroy(&b->iso_buffer, fw_parent_device(unit)->card);
- kfree(b->packets);
-}
-EXPORT_SYMBOL(iso_packets_buffer_destroy);
diff --git a/ANDROID_3.4.5/sound/firewire/packets-buffer.h b/ANDROID_3.4.5/sound/firewire/packets-buffer.h
deleted file mode 100644
index 6513c5cb..00000000
--- a/ANDROID_3.4.5/sound/firewire/packets-buffer.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED
-#define SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED
-
-#include <linux/dma-mapping.h>
-#include <linux/firewire.h>
-
-/**
- * struct iso_packets_buffer - manages a buffer for many packets
- * @iso_buffer: the memory containing the packets
- * @packets: an array, with each element pointing to one packet
- */
-struct iso_packets_buffer {
- struct fw_iso_buffer iso_buffer;
- struct {
- void *buffer;
- unsigned int offset;
- } *packets;
-};
-
-int iso_packets_buffer_init(struct iso_packets_buffer *b, struct fw_unit *unit,
- unsigned int count, unsigned int packet_size,
- enum dma_data_direction direction);
-void iso_packets_buffer_destroy(struct iso_packets_buffer *b,
- struct fw_unit *unit);
-
-#endif
diff --git a/ANDROID_3.4.5/sound/firewire/speakers.c b/ANDROID_3.4.5/sound/firewire/speakers.c
deleted file mode 100644
index 297244e6..00000000
--- a/ANDROID_3.4.5/sound/firewire/speakers.c
+++ /dev/null
@@ -1,854 +0,0 @@
-/*
- * 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, UINT_MAX);
- 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 (amdtp_out_streaming_error(&fwspk->stream))
- fwspk_stop_stream(fwspk);
-
- 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;
-
- amdtp_out_stream_destroy(&fwspk->stream);
- cmp_connection_destroy(&fwspk->connection);
- fw_unit_put(fwspk->unit);
- 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);
- 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);
- 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);
-
- amdtp_out_stream_pcm_abort(&fwspk->stream);
- snd_card_disconnect(fwspk->card);
-
- mutex_lock(&fwspk->mutex);
- 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) {
- amdtp_out_stream_pcm_abort(&fwspk->stream);
- mutex_lock(&fwspk->mutex);
- 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);