int handle_raw_tx(struct modemctl *mc, struct sk_buff *skb)
{
struct raw_hdr raw;
unsigned char ftr = 0x7e;
unsigned sz;
sz = skb->len + sizeof(raw) + 1;
if (fifo_space(&mc->raw_tx) < sz) {
MODEM_COUNT(mc, tx_fifo_full);
return -1;
}
raw.start = 0x7f;
raw.len = 6 + skb->len;
raw.channel = RAW_CH_VNET0;
raw.control = 0;
fifo_write(&mc->raw_tx, &raw, sizeof(raw));
fifo_write(&mc->raw_tx, skb->data, skb->len);
fifo_write(&mc->raw_tx, &ftr, 1);
mc->ndev->stats.tx_packets++;
mc->ndev->stats.tx_bytes += skb->len;
mc->mmio_signal_bits |= MBD_SEND_RAW;
dev_kfree_skb_irq(skb);
return 0;
}
void test4() {
struct fifo p1;
int buf1[256];
int output_buf[128];
int zero[128];
int buf_val[128];
int alt_buf_val[128];
size_t i;
for(i = 0; i < 128; i++) {
buf_val[i] = 0xaabbccdd;
alt_buf_val[i] = 0x5ab8cc84;
}
fifo_init(&p1, buf1, sizeof(int), 128);
ok1(fifo_amt(&p1) == 0);
ok1(fifo_avail(&p1) == 128);
ok1(p1.read == 0);
fifo_write(&p1, buf_val, 128);
for(i = 0; i < 128; i++) {
buf1[128+i] = 0x01234567;
}
memset(zero, 0, 128*sizeof(int));
ok1(fifo_amt(&p1) == 128);
ok1(fifo_avail(&p1) == 0);
ok1(p1.read == 0);
memset(output_buf, 0, 128);
fifo_peek(&p1, output_buf, 128);
ok1(memcmp(output_buf, buf_val, 128*sizeof(int)) == 0);
memset(output_buf, 0, 128*sizeof(int));
fifo_consume(&p1, output_buf, 96);
ok1(memcmp(output_buf, buf_val, 96*sizeof(int)) == 0);
ok1(memcmp(&output_buf[96], zero, 32*sizeof(int)) == 0);
ok1(fifo_amt(&p1) == 32);
ok1(fifo_avail(&p1) == 96);
ok1(p1.read == 96);
fifo_write(&p1, buf_val, 32);
ok1(fifo_amt(&p1) == 64);
ok1(fifo_avail(&p1) == 64);
ok1(p1.read == 96);
memset(output_buf, 0, 128*sizeof(int));
fifo_write(&p1, alt_buf_val, 64);
ok1(fifo_amt(&p1) == 128);
ok1(fifo_avail(&p1) == 0);
ok1(p1.read == 96);
ok1(memcmp(buf1, buf_val, 32*sizeof(int)) == 0);
ok1(memcmp(buf1+32, alt_buf_val, 64*sizeof(int)) == 0);
ok1(memcmp(buf1+96, buf_val, 32*sizeof(int)) == 0);
#define TEST4AMT 3 + 3 + 1 + 5 + 3 + 3 + 3
diag("----test4----\n#");
}
void SendLine()
{
uint8_t byte;
//check if serial buffer is empty
if(out->fifo.length==0)
{
/**
for(i=0;i<128;i++)
{
if(Result[i]==whiteThreshold)
byte = '.';
else if(Result[i]==blackThreshold)
byte = '|';
else
byte = 'x';
fifo_write(&out->fifo,&byte,1);
}
**/
/* uint8_t ones;
uint8_t tens;
uint8_t hunds;
uint8_t thous;
uint8_t tenThous;
tenThous = (uint8_t)(exposureTime/10000);
thous = (uint8_t)((exposureTime - tenThous*10000)%1000);
hunds = (uint8_t)((exposureTime - tenThous*10000 - thous*1000)%100);
tens = (uint8_t)((exposureTime - tenThous*10000 - thous*1000 - hunds*100)%10);
ones = (uint8_t)(exposureTime - tenThous*10000 - thous*1000 - hunds*100 - tens*10);
tenThous += 48;
fifo_write(&out->fifo,&tenThous,1);
thous += 48;
fifo_write(&out->fifo,&thous,1);
hunds += 48;
fifo_write(&out->fifo,&hunds,1);
tens += 48;
fifo_write(&out->fifo,&tens,1);
ones += 48;
fifo_write(&out->fifo,&ones,1);
*/
uint32_t copyExposureTime = exposureTime;
for(i=0; i<5; i++)
{
byte = exposureTime%10 + 0x30;
exposureTime = exposureTime/10;
fifo_write(&out->fifo,&byte,1);
}
byte = '\n';
fifo_write(&out->fifo,&byte,1);
byte = '\r';
fifo_write(&out->fifo,&byte,1);
exposureTime = copyExposureTime;
}
}
bool ffemu_push_video(ffemu_t *handle, const struct ffemu_video_data *data)
{
unsigned y;
bool drop_frame = handle->video.frame_drop_count++ % handle->video.frame_drop_ratio;
handle->video.frame_drop_count %= handle->video.frame_drop_ratio;
if (drop_frame)
return true;
for (;;)
{
slock_lock(handle->lock);
unsigned avail = fifo_write_avail(handle->attr_fifo);
slock_unlock(handle->lock);
if (!handle->alive)
return false;
if (avail >= sizeof(*data))
break;
slock_lock(handle->cond_lock);
if (handle->can_sleep)
{
handle->can_sleep = false;
scond_wait(handle->cond, handle->cond_lock);
handle->can_sleep = true;
}
else
scond_signal(handle->cond);
slock_unlock(handle->cond_lock);
}
slock_lock(handle->lock);
// Tightly pack our frame to conserve memory. libretro tends to use a very large pitch.
struct ffemu_video_data attr_data = *data;
if (attr_data.is_dupe)
attr_data.width = attr_data.height = attr_data.pitch = 0;
else
attr_data.pitch = attr_data.width * handle->video.pix_size;
fifo_write(handle->attr_fifo, &attr_data, sizeof(attr_data));
int offset = 0;
for (y = 0; y < attr_data.height; y++, offset += data->pitch)
fifo_write(handle->video_fifo, (const uint8_t*)data->data + offset, attr_data.pitch);
slock_unlock(handle->lock);
scond_signal(handle->cond);
return true;
}
void DMA2_Stream0_IRQHandler(void) {
int i, sam;
short signed_buf[ADC_BUF_SZ/2];
/* Half transfer interrupt */
if(DMA_GetITStatus(DMA2_Stream0, DMA_IT_HTIF0) != RESET) {
half++;
/* convert to signed */
for(i=0; i<ADC_BUF_SZ/2; i++) {
sam = (int)adc_buf[i] - 32768;
//sam = (int)adc_buf[i];
signed_buf[i] = sam;
}
/* write first half to fifo */
if (fifo_write(DMA2_Stream0_fifo, signed_buf, ADC_BUF_SZ/2) == -1) {
adc_overflow++;
}
/* Clear DMA Stream Transfer Complete interrupt pending bit */
DMA_ClearITPendingBit(DMA2_Stream0, DMA_IT_HTIF0);
}
/* Transfer complete interrupt */
if(DMA_GetITStatus(DMA2_Stream0, DMA_IT_TCIF0) != RESET) {
full++;
/* convert to signed */
for(i=0; i<ADC_BUF_SZ/2; i++) {
sam = (int)adc_buf[ADC_BUF_SZ/2 + i] - 32768;
//sam = (int)adc_buf[ADC_BUF_SZ/2 + i];
signed_buf[i] = sam;
}
/* write second half to fifo */
if (fifo_write(DMA2_Stream0_fifo, signed_buf, ADC_BUF_SZ/2) == -1) {
adc_overflow++;
}
/* Clear DMA Stream Transfer Complete interrupt pending bit */
DMA_ClearITPendingBit(DMA2_Stream0, DMA_IT_TCIF0);
}
}
static ssize_t rs_write(void *data, const void *buf, size_t size)
{
rsd_t *rsd = (rsd_t*)data;
if (rsd->has_error)
return -1;
if (rsd->nonblock)
{
size_t avail, write_amt;
rsd_callback_lock(rsd->rd);
avail = fifo_write_avail(rsd->buffer);
write_amt = avail > size ? size : avail;
fifo_write(rsd->buffer, buf, write_amt);
rsd_callback_unlock(rsd->rd);
return write_amt;
}
else
{
size_t written = 0;
while (written < size && !rsd->has_error)
{
size_t avail;
rsd_callback_lock(rsd->rd);
avail = fifo_write_avail(rsd->buffer);
if (avail == 0)
{
rsd_callback_unlock(rsd->rd);
if (!rsd->has_error)
{
slock_lock(rsd->cond_lock);
scond_wait(rsd->cond, rsd->cond_lock);
slock_unlock(rsd->cond_lock);
}
}
else
{
size_t write_amt = size - written > avail ? avail : size - written;
fifo_write(rsd->buffer, (const char*)buf + written, write_amt);
rsd_callback_unlock(rsd->rd);
written += write_amt;
}
}
return written;
}
}
static ssize_t alsa_thread_write(void *data, const void *buf, size_t size)
{
alsa_thread_t *alsa = (alsa_thread_t*)data;
if (alsa->thread_dead)
return -1;
if (alsa->nonblock)
{
size_t avail;
size_t write_amt;
slock_lock(alsa->fifo_lock);
avail = fifo_write_avail(alsa->buffer);
write_amt = MIN(avail, size);
fifo_write(alsa->buffer, buf, write_amt);
slock_unlock(alsa->fifo_lock);
return write_amt;
}
else
{
size_t written = 0;
while (written < size && !alsa->thread_dead)
{
size_t avail;
slock_lock(alsa->fifo_lock);
avail = fifo_write_avail(alsa->buffer);
if (avail == 0)
{
slock_unlock(alsa->fifo_lock);
slock_lock(alsa->cond_lock);
if (!alsa->thread_dead)
scond_wait(alsa->cond, alsa->cond_lock);
slock_unlock(alsa->cond_lock);
}
else
{
size_t write_amt = MIN(size - written, avail);
fifo_write(alsa->buffer,
(const char*)buf + written, write_amt);
slock_unlock(alsa->fifo_lock);
written += write_amt;
}
}
return written;
}
}
/* must be called with pipe->tx_lock held */
static int modem_pipe_send(struct m_pipe *pipe, struct modem_io *io)
{
char hdr[M_PIPE_MAX_HDR];
static char ftr = 0x7e;
unsigned size;
int ret;
ret = pipe->push_header(io, hdr);
if (ret)
return ret;
size = io->size + pipe->header_size + 1;
if (io->size > 0x10000000)
return -EINVAL;
if (size >= (pipe->tx->size - 1))
return -EINVAL;
for (;;) {
ret = modem_acquire_mmio(pipe->mc);
if (ret)
return ret;
modem_update_pipe(pipe);
if (pipe->tx->avail >= size) {
fifo_write(pipe->tx, hdr, pipe->header_size);
fifo_write_user(pipe->tx, io->data, io->size);
fifo_write(pipe->tx, &ftr, 1);
modem_update_pipe(pipe);
modem_release_mmio(pipe->mc, pipe->tx->bits);
MODEM_COUNT(pipe->mc, pipe_tx);
return 0;
}
pr_info("modem_pipe_send: wait for space\n");
MODEM_COUNT(pipe->mc, pipe_tx_delayed);
modem_release_mmio(pipe->mc, 0);
ret = wait_event_interruptible_timeout(
pipe->mc->wq,
(pipe->tx->avail >= size) || modem_offline(pipe->mc),
5 * HZ);
if (ret == 0)
return -ENODEV;
if (ret < 0)
return ret;
}
}
// The top-level function for AUGH
void augh_main () {
do {
fifo_read(stdin, &input[0]);
fifo_read(stdin, &input[1]);
fifo_read(stdin, &input[2]);
bidon();
fifo_write(stdout, &output[0]);
fifo_write(stdout, &output[1]);
}while(1);
}
bool ffemu_push_audio(ffemu_t *handle, const struct ffemu_audio_data *data)
{
for (;;)
{
slock_lock(handle->lock);
unsigned avail = fifo_write_avail(handle->audio_fifo);
slock_unlock(handle->lock);
if (!handle->alive)
return false;
if (avail >= data->frames * handle->params.channels * sizeof(int16_t))
break;
slock_lock(handle->cond_lock);
if (handle->can_sleep)
{
handle->can_sleep = false;
scond_wait(handle->cond, handle->cond_lock);
handle->can_sleep = true;
}
else
scond_signal(handle->cond);
slock_unlock(handle->cond_lock);
}
slock_lock(handle->lock);
fifo_write(handle->audio_fifo, data->data, data->frames * handle->params.channels * sizeof(int16_t));
slock_unlock(handle->lock);
scond_signal(handle->cond);
return true;
}
static int decoder(playa_info_t * info)
{
int status;
int n;
status = FillYM();
if (status < 0) {
spool_error_message();
return INP_DECODE_ERROR;
}
if (status & INP_DECODE_INFO) {
disk_info(info, 0);
}
n = 0;
if (app.mix.buflen > 0) {
n = fifo_write((int *)app.mix.buf, app.mix.buflen);
if (n > 0) {
app.mix.buf += n;
app.mix.buflen -= n;
}
}
if (!n) {
/* Nothing has been written. fifo must be full ! */
status &= ~INP_DECODE_CONT;
}
return (n < 0) ? INP_DECODE_ERROR : status;
}
sampleCount EffectReverb::ProcessBlock(float **inBlock, float **outBlock, sampleCount blockLen)
{
float *ichans[2] = {NULL, NULL};
float *ochans[2] = {NULL, NULL};
for (int c = 0; c < mNumChans; c++)
{
ichans[c] = inBlock[c];
ochans[c] = outBlock[c];
}
float const dryMult = mParams.mWetOnly ? 0 : dB_to_linear(mParams.mDryGain);
sampleCount remaining = blockLen;
while (remaining)
{
sampleCount len = wxMin(remaining, BLOCK);
for (int c = 0; c < mNumChans; c++)
{
// Write the input samples to the reverb fifo. Returned value is the address of the
// fifo buffer which contains a copy of the input samples.
mP[c].dry = (float *) fifo_write(&mP[c].reverb.input_fifo, len, ichans[c]);
reverb_process(&mP[c].reverb, len);
}
if (mNumChans == 2)
{
for (sampleCount i = 0; i < len; i++)
{
for (int w = 0; w < 2; w++)
{
ochans[w][i] = dryMult *
mP[w].dry[i] +
0.5 *
(mP[0].wet[w][i] + mP[1].wet[w][i]);
}
}
}
else
{
for (sampleCount i = 0; i < len; i++)
{
ochans[0][i] = dryMult *
mP[0].dry[i] +
mP[0].wet[0][i];
}
}
remaining -= len;
for (int c = 0; c < mNumChans; c++)
{
ichans[c] += len;
ochans[c] += len;
}
}
return blockLen;
}
static ssize_t dsound_write(void *data, const void *buf_, size_t size)
{
size_t written = 0;
dsound_t *ds = (dsound_t*)data;
const uint8_t *buf = (const uint8_t*)buf_;
if (!ds->thread_alive)
return -1;
while (size > 0)
{
size_t avail;
EnterCriticalSection(&ds->crit);
avail = fifo_write_avail(ds->buffer);
if (avail > size)
avail = size;
fifo_write(ds->buffer, buf, avail);
LeaveCriticalSection(&ds->crit);
buf += avail;
size -= avail;
written += avail;
if (ds->nonblock || !ds->thread_alive)
break;
if (avail == 0)
WaitForSingleObject(ds->event, INFINITE);
}
return written;
}
static PyObject* fifoWrite(PyObject* self, PyObject* arg)
{
PyObject* transferTuple;
unsigned int id, returnVal ;
if(!PyArg_ParseTuple(arg, "lO", &id, &transferTuple))
return NULL;
if(!PyTuple_Check(transferTuple))
pabort("Only accepts a single tuple as an argument\n");
uint32_t tupleSize = PyTuple_Size(transferTuple);
uint8_t tx[tupleSize];
PyObject* tempItem;
uint32_t i=0;
while(i < tupleSize)
{
tempItem = PyTuple_GetItem(transferTuple, i);
if(!PyInt_Check(tempItem))
{
pabort("non-integer contained in tuple\n");
}
tx[i] = (uint8_t)PyInt_AsSsize_t(tempItem);
i++;
}
returnVal = fifo_write(id, tx, tupleSize);
return Py_BuildValue("l", returnVal) ;
}
void test_is_empty(void)
{
uint32_t dummy;
TEST_ASSERT_TRUE(fifo_isEmpty(&ff_non_overwritable));
fifo_write(&ff_non_overwritable, &dummy);
TEST_ASSERT_FALSE(fifo_isEmpty(&ff_non_overwritable));
}
uint8_t fifo_write_array(fifo_t *fifo, uint8_t *array, uint8_t size) {
uint8_t i = 0;
while(i < size && fifo_write(fifo, array[i]) == 0) {
i++;
}
return i;
}
static telnet_send_opt(fifo_buffer *out, char code, char opt)
{
char buf[3];
buf[0] = TELNET_IAC;
buf[1] = code;
buf[2] = opt;
fifo_write(out, buf, 3);
}
static ssize_t sdl_audio_write(void *data, const void *buf, size_t size)
{
sdl_audio_t *sdl = (sdl_audio_t*)data;
ssize_t ret = 0;
if (sdl->nonblock)
{
SDL_LockAudio();
size_t avail = fifo_write_avail(sdl->buffer);
size_t write_amt = avail > size ? size : avail;
fifo_write(sdl->buffer, buf, write_amt);
SDL_UnlockAudio();
ret = write_amt;
}
else
{
size_t written = 0;
while (written < size)
{
SDL_LockAudio();
size_t avail = fifo_write_avail(sdl->buffer);
if (avail == 0)
{
SDL_UnlockAudio();
slock_lock(sdl->lock);
scond_wait(sdl->cond, sdl->lock);
slock_unlock(sdl->lock);
}
else
{
size_t write_amt = size - written > avail ? avail : size - written;
fifo_write(sdl->buffer, (const char*)buf + written, write_amt);
SDL_UnlockAudio();
written += write_amt;
}
}
ret = written;
}
return ret;
}
/*
* Write wrapper for fifo's.
*/
int
ufsfifo_write(void *v)
{
struct vop_write_args *ap = v;
/*
* Set update and change flags.
*/
VTOI(ap->a_vp)->i_flag |= IN_CHANGE | IN_UPDATE;
return (fifo_write(ap));
}
static void *sdl_audio_init(const char *device, unsigned rate, unsigned latency)
{
(void)device;
if (SDL_WasInit(0) == 0)
{
if (SDL_Init(SDL_INIT_AUDIO) < 0)
return NULL;
}
else if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0)
return NULL;
sdl_audio_t *sdl = (sdl_audio_t*)calloc(1, sizeof(*sdl));
if (!sdl)
return NULL;
// We have to buffer up some data ourselves, so we let SDL carry approx half of the latency. SDL double buffers audio and we do as well.
int frames = find_num_frames(rate, latency / 4);
SDL_AudioSpec spec = {0};
spec.freq = rate;
spec.format = AUDIO_S16SYS;
spec.channels = 2;
spec.samples = frames; // This is in audio frames, not samples ... :(
spec.callback = sdl_audio_cb;
spec.userdata = sdl;
SDL_AudioSpec out;
if (SDL_OpenAudio(&spec, &out) < 0)
{
RARCH_ERR("Failed to open SDL audio: %s\n", SDL_GetError());
free(sdl);
return 0;
}
g_settings.audio.out_rate = out.freq;
sdl->lock = slock_new();
sdl->cond = scond_new();
RARCH_LOG("SDL audio: Requested %u ms latency, got %d ms\n", latency, (int)(out.samples * 4 * 1000 / g_settings.audio.out_rate));
// Create a buffer twice as big as needed and prefill the buffer.
size_t bufsize = out.samples * 4 * sizeof(int16_t);
void *tmp = calloc(1, bufsize);
sdl->buffer = fifo_new(bufsize);
if (tmp)
{
fifo_write(sdl->buffer, tmp, bufsize);
free(tmp);
}
SDL_PauseAudio(0);
return sdl;
}
void test_is_full(void)
{
TEST_ASSERT_FALSE(fifo_isFull(&ff_non_overwritable));
for(uint32_t i=0; i < FIFO_SIZE; i++)
{
fifo_write(&ff_non_overwritable, &i);
}
TEST_ASSERT_TRUE(fifo_isFull(&ff_non_overwritable));
}
static void libusb_hid_device_send_control(void *data,
uint8_t* data_buf, size_t size)
{
struct libusb_adapter *adapter = (struct libusb_adapter*)data;
if (!adapter)
return;
slock_lock(adapter->send_control_lock);
if (fifo_write_avail(adapter->send_control_buffer) >= size + sizeof(size))
{
fifo_write(adapter->send_control_buffer, &size, sizeof(size));
fifo_write(adapter->send_control_buffer, data_buf, size);
}
else
{
RARCH_WARN("adapter write buffer is full, cannot write send control\n");
}
slock_unlock(adapter->send_control_lock);
}
void test_normal(void)
{
for(uint32_t i=0; i < FIFO_SIZE; i++)
{
fifo_write(&ff_non_overwritable, &i);
}
for(uint32_t i=0; i < FIFO_SIZE; i++)
{
uint32_t c;
fifo_read(&ff_non_overwritable, &c);
TEST_ASSERT_EQUAL(i, c);
}
}
void SendRawData()
{
uint8_t byte;
//check if serial buffer is empty
if(out->fifo.length==0)
{
for(i=0; i<128; i++)
{
byte = lineADC[i];
fifo_write(&out->fifo,&byte,1);
}
byte = line_middle;
fifo_write(&out->fifo,&byte,1);
for(i=0; i<5; i++)
{
byte = (i%2 == 0)?255:0;
fifo_write(&out->fifo,&byte,1);
}
}
}
int
tmpfs_fifo_write(void *v)
{
struct vop_write_args /* {
struct vnode *a_vp;
struct uio *a_uio;
int a_ioflag;
kauth_cred_t a_cred;
} */ *ap = v;
struct vnode *vp = ap->a_vp;
VP_TO_TMPFS_NODE(vp)->tn_status |= TMPFS_NODE_MODIFIED;
return (fifo_write(v));
}
void test_circular(void)
{
FIFO_DEF(ff_overwritable, 2, uint32_t, true, 0);
uint32_t data;
// feed fifo to full
data = 1;
fifo_write(&ff_overwritable, &data); // 1
data = 2;
fifo_write(&ff_overwritable, &data); // 2
// overflow data
data = 100;
fifo_write(&ff_overwritable, &data);
//------------- 1st read should be 2, second is 100 -------------//
fifo_read(&ff_overwritable, &data);
TEST_ASSERT_EQUAL(2, data);
fifo_read(&ff_overwritable, &data);
TEST_ASSERT_EQUAL(100, data);
}
/* must be called with pipe->tx_lock held */
static int modem_pipe_send(struct m_pipe *pipe, struct modem_io *io)
{
char hdr[M_PIPE_MAX_HDR];
unsigned size;
int ret;
io->magic = 0xCAFECAFE;
ret = pipe->push_header(io, hdr);
if (ret)
return ret;
size = io->datasize + pipe->header_size;
if (size > 0x1000 /*pipe->tx->size*/)
{
pr_err ("Trying to send bigger than 4kB frame - MULTIPACKET not implemented yet.\n");
return -EINVAL;
}
for (;;) {
ret = modem_acquire_mmio(pipe->mc);
if (ret)
return ret;
modem_update_pipe(pipe);
if (pipe->tx->avail >= size) {
fifo_write(pipe->tx, hdr, pipe->header_size);
fifo_move_head(pipe->tx, pipe->header_size);
fifo_write_user(pipe->tx, io->data, io->datasize);
fifo_move_head(pipe->tx, SIZ_PACKET_BUFSIZE);
modem_update_pipe(pipe);
modem_release_mmio(pipe->mc, pipe->tx->bits);
MODEM_COUNT(pipe->mc, pipe_tx);
return 0;
}
pr_info("modem_pipe_send: wait for space\n");
MODEM_COUNT(pipe->mc, pipe_tx_delayed);
modem_release_mmio(pipe->mc, 0);
ret = wait_event_interruptible(pipe->mc->wq,
(pipe->tx->avail >= size)
|| modem_offline(pipe->mc));
if (ret)
return ret;
}
}
void do_kb() //0x21
{
outb(0x20,0x61); /* master PIC */
scan_code = inb(0x60);
if(scan_code == 0x2a || scan_code == 0x36)
{
key_shf = 1;
outb(0x20,0x61); /* master PIC */
return;
}
else if(scan_code == 0xaa || scan_code == 0xb6)
key_shf = 0;
//show_char();
fifo_write(&global_fifo,scan_code+KB_STA);
}
int qm_ss_spi_irq_transfer(const qm_ss_spi_t spi,
const qm_ss_spi_async_transfer_t *const xfer)
{
QM_CHECK(spi < QM_SS_SPI_NUM, -EINVAL);
QM_CHECK(xfer, -EINVAL);
/* Load and save initial control register */
uint32_t ctrl = __builtin_arc_lr(base[spi] + QM_SS_SPI_CTRL);
uint8_t tmode = (uint8_t)((ctrl & QM_SS_SPI_CTRL_TMOD_MASK) >>
QM_SS_SPI_CTRL_TMOD_OFFS);
uint8_t bytes = BYTES_PER_FRAME(ctrl);
QM_CHECK(tmode == QM_SS_SPI_TMOD_TX_RX ? (xfer->tx_len == xfer->rx_len)
: 1,
-EINVAL);
spi_async_transfer[spi] = xfer;
tx_c[spi] = xfer->tx_len;
rx_c[spi] = xfer->rx_len;
/* Set NDF (Number of Data Frames) in RX or EEPROM Read mode. (-1) */
if (tmode == QM_SS_SPI_TMOD_RX || tmode == QM_SS_SPI_TMOD_EEPROM_READ) {
ctrl &= ~QM_SS_SPI_CTRL_NDF_MASK;
ctrl |= ((xfer->rx_len - 1) << QM_SS_SPI_CTRL_NDF_OFFS) &
QM_SS_SPI_CTRL_NDF_MASK;
__builtin_arc_sr(ctrl, base[spi] + QM_SS_SPI_CTRL);
}
uint32_t ftlr =
(((FIFO_RX_W_MARK < xfer->rx_len ? FIFO_RX_W_MARK : xfer->rx_len) -
1)
<< QM_SS_SPI_FTLR_RFT_OFFS) &
QM_SS_SPI_FTLR_RFT_MASK;
__builtin_arc_sr(ftlr, base[spi] + QM_SS_SPI_FTLR);
/* Unmask all interrupts */
__builtin_arc_sr(QM_SS_SPI_INTR_ALL, base[spi] + QM_SS_SPI_INTR_MASK);
/* Enable SPI device */
QM_SS_REG_AUX_OR(base[spi] + QM_SS_SPI_SPIEN, QM_SS_SPI_SPIEN_EN);
/* RX only transfers need a dummy frame byte to be sent. */
if (tmode == QM_SS_SPI_TMOD_RX) {
fifo_write(spi, (uint8_t *)&dummy_frame, bytes);
}
return 0;
}
static ssize_t coreaudio_write(void *data, const void *buf_, size_t size)
{
coreaudio_t *dev = (coreaudio_t*)data;
const uint8_t *buf = (const uint8_t*)buf_;
size_t written = 0;
#ifdef IOS
struct timeval time;
gettimeofday(&time, 0);
struct timespec timeout;
memset(&timeout, 0, sizeof(timeout));
timeout.tv_sec = time.tv_sec + 3;
timeout.tv_nsec = time.tv_usec * 1000;
#endif
while (!g_interrupted && size > 0)
{
pthread_mutex_lock(&dev->lock);
size_t write_avail = fifo_write_avail(dev->buffer);
if (write_avail > size)
write_avail = size;
fifo_write(dev->buffer, buf, write_avail);
buf += write_avail;
written += write_avail;
size -= write_avail;
if (dev->nonblock)
{
pthread_mutex_unlock(&dev->lock);
break;
}
#ifdef IOS
if (write_avail == 0 && pthread_cond_timedwait(&dev->cond, &dev->lock, &timeout) == ETIMEDOUT)
g_interrupted = true;
#else
if (write_avail == 0)
pthread_cond_wait(&dev->cond, &dev->lock);
#endif
pthread_mutex_unlock(&dev->lock);
}
return written;
}