drivers/staging/greybus/uart.c

120

dev_err(&gb_tty->gbphy_dev->dev,

drivers/staging/greybus/uart.c

132

struct gb_tty *gb_tty = gb_connection_get_data(connection);

drivers/staging/greybus/uart.c

137

dev_err(&gb_tty->gbphy_dev->dev,

drivers/staging/greybus/uart.c

144

gb_tty->ctrlin = serial_state->control;

drivers/staging/greybus/uart.c

152

struct gb_tty *gb_tty = gb_connection_get_data(connection);

drivers/staging/greybus/uart.c

160

dev_err(&gb_tty->gbphy_dev->dev,

drivers/staging/greybus/uart.c

170

spin_lock_irqsave(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

171

gb_tty->credits += incoming_credits;

drivers/staging/greybus/uart.c

172

if (gb_tty->credits > GB_UART_FIRMWARE_CREDITS) {

drivers/staging/greybus/uart.c

173

gb_tty->credits -= incoming_credits;

drivers/staging/greybus/uart.c

176

spin_unlock_irqrestore(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

179

dev_err(&gb_tty->gbphy_dev->dev,

drivers/staging/greybus/uart.c

185

if (!gb_tty->close_pending)

drivers/staging/greybus/uart.c

186

schedule_work(&gb_tty->tx_work);

drivers/staging/greybus/uart.c

191

tty_port_tty_wakeup(&gb_tty->port);

drivers/staging/greybus/uart.c

193

if (gb_tty->credits == GB_UART_FIRMWARE_CREDITS)

drivers/staging/greybus/uart.c

194

complete(&gb_tty->credits_complete);

drivers/staging/greybus/uart.c

202

struct gb_tty *gb_tty = gb_connection_get_data(connection);

drivers/staging/greybus/uart.c

217

dev_err(&gb_tty->gbphy_dev->dev,

drivers/staging/greybus/uart.c

228

struct gb_tty *gb_tty;

drivers/staging/greybus/uart.c

233

gb_tty = container_of(work, struct gb_tty, tx_work);

drivers/staging/greybus/uart.c

234

request = gb_tty->buffer;

drivers/staging/greybus/uart.c

237

if (gb_tty->close_pending)

drivers/staging/greybus/uart.c

240

spin_lock_irqsave(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

241

send_size = gb_tty->buffer_payload_max;

drivers/staging/greybus/uart.c

242

if (send_size > gb_tty->credits)

drivers/staging/greybus/uart.c

243

send_size = gb_tty->credits;

drivers/staging/greybus/uart.c

245

send_size = kfifo_out_peek(&gb_tty->write_fifo,

drivers/staging/greybus/uart.c

249

spin_unlock_irqrestore(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

253

gb_tty->credits -= send_size;

drivers/staging/greybus/uart.c

254

spin_unlock_irqrestore(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

257

ret = gb_operation_sync(gb_tty->connection,

drivers/staging/greybus/uart.c

262

dev_err(&gb_tty->gbphy_dev->dev,

drivers/staging/greybus/uart.c

264

spin_lock_irqsave(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

265

gb_tty->credits += send_size;

drivers/staging/greybus/uart.c

266

spin_unlock_irqrestore(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

267

if (!gb_tty->close_pending)

drivers/staging/greybus/uart.c

272

spin_lock_irqsave(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

273

ret = kfifo_out(&gb_tty->write_fifo, &request->data[0],

drivers/staging/greybus/uart.c

275

spin_unlock_irqrestore(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

277

tty_port_tty_wakeup(&gb_tty->port);

drivers/staging/greybus/uart.c

281

static int send_line_coding(struct gb_tty *tty)

drivers/staging/greybus/uart.c

288

static int send_control(struct gb_tty *gb_tty, u8 control)

drivers/staging/greybus/uart.c

293

return gb_operation_sync(gb_tty->connection,

drivers/staging/greybus/uart.c

298

static int send_break(struct gb_tty *gb_tty, u8 state)

drivers/staging/greybus/uart.c

303

dev_err(&gb_tty->gbphy_dev->dev,

drivers/staging/greybus/uart.c

309

return gb_operation_sync(gb_tty->connection, GB_UART_TYPE_SEND_BREAK,

drivers/staging/greybus/uart.c

313

static int gb_uart_wait_for_all_credits(struct gb_tty *gb_tty)

drivers/staging/greybus/uart.c

317

if (gb_tty->credits == GB_UART_FIRMWARE_CREDITS)

drivers/staging/greybus/uart.c

320

ret = wait_for_completion_timeout(&gb_tty->credits_complete,

drivers/staging/greybus/uart.c

323

dev_err(&gb_tty->gbphy_dev->dev,

drivers/staging/greybus/uart.c

331

static int gb_uart_flush(struct gb_tty *gb_tty, u8 flags)

drivers/staging/greybus/uart.c

336

return gb_operation_sync(gb_tty->connection, GB_UART_TYPE_FLUSH_FIFOS,

drivers/staging/greybus/uart.c

340

static struct gb_tty *get_gb_by_minor(unsigned int minor)

drivers/staging/greybus/uart.c

342

struct gb_tty *gb_tty;

drivers/staging/greybus/uart.c

345

gb_tty = idr_find(&tty_minors, minor);

drivers/staging/greybus/uart.c

346

if (gb_tty) {

drivers/staging/greybus/uart.c

347

mutex_lock(&gb_tty->mutex);

drivers/staging/greybus/uart.c

348

if (gb_tty->disconnected) {

drivers/staging/greybus/uart.c

349

mutex_unlock(&gb_tty->mutex);

drivers/staging/greybus/uart.c

350

gb_tty = NULL;

drivers/staging/greybus/uart.c

352

tty_port_get(&gb_tty->port);

drivers/staging/greybus/uart.c

353

mutex_unlock(&gb_tty->mutex);

drivers/staging/greybus/uart.c

357

return gb_tty;

drivers/staging/greybus/uart.c

360

static int alloc_minor(struct gb_tty *gb_tty)

drivers/staging/greybus/uart.c

365

minor = idr_alloc(&tty_minors, gb_tty, 0, GB_NUM_MINORS, GFP_KERNEL);

drivers/staging/greybus/uart.c

368

gb_tty->minor = minor;

drivers/staging/greybus/uart.c

372

static void release_minor(struct gb_tty *gb_tty)

drivers/staging/greybus/uart.c

374

int minor = gb_tty->minor;

drivers/staging/greybus/uart.c

376

gb_tty->minor = 0; /* Maybe should use an invalid value instead */

drivers/staging/greybus/uart.c

384

struct gb_tty *gb_tty;

drivers/staging/greybus/uart.c

387

gb_tty = get_gb_by_minor(tty->index);

drivers/staging/greybus/uart.c

388

if (!gb_tty)

drivers/staging/greybus/uart.c

395

tty->driver_data = gb_tty;

drivers/staging/greybus/uart.c

398

tty_port_put(&gb_tty->port);

drivers/staging/greybus/uart.c

404

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

406

return tty_port_open(&gb_tty->port, tty, file);

drivers/staging/greybus/uart.c

411

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

413

tty_port_close(&gb_tty->port, tty, file);

drivers/staging/greybus/uart.c

418

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

420

tty_port_put(&gb_tty->port);

drivers/staging/greybus/uart.c

425

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

427

tty_port_hangup(&gb_tty->port);

drivers/staging/greybus/uart.c

432

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

434

count = kfifo_in_spinlocked(&gb_tty->write_fifo, buf, count,

drivers/staging/greybus/uart.c

435

&gb_tty->write_lock);

drivers/staging/greybus/uart.c

436

if (count && !gb_tty->close_pending)

drivers/staging/greybus/uart.c

437

schedule_work(&gb_tty->tx_work);

drivers/staging/greybus/uart.c

444

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

448

spin_lock_irqsave(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

449

room = kfifo_avail(&gb_tty->write_fifo);

drivers/staging/greybus/uart.c

450

spin_unlock_irqrestore(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

461

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

465

spin_lock_irqsave(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

466

chars = kfifo_len(&gb_tty->write_fifo);

drivers/staging/greybus/uart.c

467

if (gb_tty->credits < GB_UART_FIRMWARE_CREDITS)

drivers/staging/greybus/uart.c

468

chars += GB_UART_FIRMWARE_CREDITS - gb_tty->credits;

drivers/staging/greybus/uart.c

469

spin_unlock_irqrestore(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

476

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

478

return send_break(gb_tty, state ? 1 : 0);

drivers/staging/greybus/uart.c

485

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

487

u8 newctrl = gb_tty->ctrlout;

drivers/staging/greybus/uart.c

499

gb_tty->clocal = ((termios->c_cflag & CLOCAL) != 0);

drivers/staging/greybus/uart.c

502

newline.rate = gb_tty->line_coding.rate;

drivers/staging/greybus/uart.c

508

if (newctrl != gb_tty->ctrlout) {

drivers/staging/greybus/uart.c

509

gb_tty->ctrlout = newctrl;

drivers/staging/greybus/uart.c

510

send_control(gb_tty, newctrl);

drivers/staging/greybus/uart.c

518

if (memcmp(&gb_tty->line_coding, &newline, sizeof(newline))) {

drivers/staging/greybus/uart.c

519

memcpy(&gb_tty->line_coding, &newline, sizeof(newline));

drivers/staging/greybus/uart.c

520

send_line_coding(gb_tty);

drivers/staging/greybus/uart.c

526

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

528

return (gb_tty->ctrlout & GB_UART_CTRL_DTR ? TIOCM_DTR : 0) |

drivers/staging/greybus/uart.c

529

(gb_tty->ctrlout & GB_UART_CTRL_RTS ? TIOCM_RTS : 0) |

drivers/staging/greybus/uart.c

530

(gb_tty->ctrlin & GB_UART_CTRL_DSR ? TIOCM_DSR : 0) |

drivers/staging/greybus/uart.c

531

(gb_tty->ctrlin & GB_UART_CTRL_RI ? TIOCM_RI : 0) |

drivers/staging/greybus/uart.c

532

(gb_tty->ctrlin & GB_UART_CTRL_DCD ? TIOCM_CD : 0) |

drivers/staging/greybus/uart.c

539

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

540

u8 newctrl = gb_tty->ctrlout;

drivers/staging/greybus/uart.c

548

if (gb_tty->ctrlout == newctrl)

drivers/staging/greybus/uart.c

551

gb_tty->ctrlout = newctrl;

drivers/staging/greybus/uart.c

552

return send_control(gb_tty, newctrl);

drivers/staging/greybus/uart.c

557

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

569

gb_tty->ctrlout &= ~GB_UART_CTRL_RTS;

drivers/staging/greybus/uart.c

570

retval = send_control(gb_tty, gb_tty->ctrlout);

drivers/staging/greybus/uart.c

576

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

588

gb_tty->ctrlout |= GB_UART_CTRL_RTS;

drivers/staging/greybus/uart.c

589

retval = send_control(gb_tty, gb_tty->ctrlout);

drivers/staging/greybus/uart.c

596

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

598

ss->line = gb_tty->minor;

drivers/staging/greybus/uart.c

599

mutex_lock(&gb_tty->port.mutex);

drivers/staging/greybus/uart.c

600

ss->close_delay = jiffies_to_msecs(gb_tty->port.close_delay) / 10;

drivers/staging/greybus/uart.c

602

gb_tty->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ?

drivers/staging/greybus/uart.c

604

jiffies_to_msecs(gb_tty->port.closing_wait) / 10;

drivers/staging/greybus/uart.c

605

mutex_unlock(&gb_tty->port.mutex);

drivers/staging/greybus/uart.c

613

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

623

mutex_lock(&gb_tty->port.mutex);

drivers/staging/greybus/uart.c

625

if ((close_delay != gb_tty->port.close_delay) ||

drivers/staging/greybus/uart.c

626

(closing_wait != gb_tty->port.closing_wait))

drivers/staging/greybus/uart.c

629

gb_tty->port.close_delay = close_delay;

drivers/staging/greybus/uart.c

630

gb_tty->port.closing_wait = closing_wait;

drivers/staging/greybus/uart.c

632

mutex_unlock(&gb_tty->port.mutex);

drivers/staging/greybus/uart.c

636

static int wait_serial_change(struct gb_tty *gb_tty, unsigned long arg)

drivers/staging/greybus/uart.c

647

spin_lock_irq(&gb_tty->read_lock);

drivers/staging/greybus/uart.c

648

old = gb_tty->oldcount;

drivers/staging/greybus/uart.c

649

new = gb_tty->iocount;

drivers/staging/greybus/uart.c

650

gb_tty->oldcount = new;

drivers/staging/greybus/uart.c

651

spin_unlock_irq(&gb_tty->read_lock);

drivers/staging/greybus/uart.c

660

add_wait_queue(&gb_tty->wioctl, &wait);

drivers/staging/greybus/uart.c

663

remove_wait_queue(&gb_tty->wioctl, &wait);

drivers/staging/greybus/uart.c

664

if (gb_tty->disconnected) {

drivers/staging/greybus/uart.c

679

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

681

icount->dsr = gb_tty->iocount.dsr;

drivers/staging/greybus/uart.c

682

icount->rng = gb_tty->iocount.rng;

drivers/staging/greybus/uart.c

683

icount->dcd = gb_tty->iocount.dcd;

drivers/staging/greybus/uart.c

684

icount->frame = gb_tty->iocount.frame;

drivers/staging/greybus/uart.c

685

icount->overrun = gb_tty->iocount.overrun;

drivers/staging/greybus/uart.c

686

icount->parity = gb_tty->iocount.parity;

drivers/staging/greybus/uart.c

687

icount->brk = gb_tty->iocount.brk;

drivers/staging/greybus/uart.c

695

struct gb_tty *gb_tty = tty->driver_data;

drivers/staging/greybus/uart.c

699

return wait_serial_change(gb_tty, arg);

drivers/staging/greybus/uart.c

707

struct gb_tty *gb_tty;

drivers/staging/greybus/uart.c

710

gb_tty = container_of(port, struct gb_tty, port);

drivers/staging/greybus/uart.c

711

newctrl = gb_tty->ctrlout;

drivers/staging/greybus/uart.c

718

gb_tty->ctrlout = newctrl;

drivers/staging/greybus/uart.c

719

send_control(gb_tty, newctrl);

drivers/staging/greybus/uart.c

725

struct gb_tty *gb_tty;

drivers/staging/greybus/uart.c

727

gb_tty = container_of(port, struct gb_tty, port);

drivers/staging/greybus/uart.c

729

return gbphy_runtime_get_sync(gb_tty->gbphy_dev);

drivers/staging/greybus/uart.c

734

struct gb_tty *gb_tty;

drivers/staging/greybus/uart.c

738

gb_tty = container_of(port, struct gb_tty, port);

drivers/staging/greybus/uart.c

740

gb_tty->close_pending = true;

drivers/staging/greybus/uart.c

742

cancel_work_sync(&gb_tty->tx_work);

drivers/staging/greybus/uart.c

744

spin_lock_irqsave(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

745

kfifo_reset_out(&gb_tty->write_fifo);

drivers/staging/greybus/uart.c

746

spin_unlock_irqrestore(&gb_tty->write_lock, flags);

drivers/staging/greybus/uart.c

748

if (gb_tty->credits == GB_UART_FIRMWARE_CREDITS)

drivers/staging/greybus/uart.c

751

ret = gb_uart_flush(gb_tty, GB_SERIAL_FLAG_FLUSH_TRANSMITTER);

drivers/staging/greybus/uart.c

753

dev_err(&gb_tty->gbphy_dev->dev,

drivers/staging/greybus/uart.c

757

gb_uart_wait_for_all_credits(gb_tty);

drivers/staging/greybus/uart.c

76

struct gb_tty *gb_tty = gb_connection_get_data(connection);

drivers/staging/greybus/uart.c

760

gb_tty->close_pending = false;

drivers/staging/greybus/uart.c

762

gbphy_runtime_put_autosuspend(gb_tty->gbphy_dev);

drivers/staging/greybus/uart.c

767

struct gb_tty *gb_tty = container_of(port, struct gb_tty, port);

drivers/staging/greybus/uart.c

769

if (gb_tty->minor != GB_NUM_MINORS)

drivers/staging/greybus/uart.c

77

struct tty_port *port = &gb_tty->port;

drivers/staging/greybus/uart.c

770

release_minor(gb_tty);

drivers/staging/greybus/uart.c

771

kfifo_free(&gb_tty->write_fifo);

drivers/staging/greybus/uart.c

772

kfree(gb_tty->buffer);

drivers/staging/greybus/uart.c

773

kfree(gb_tty);

drivers/staging/greybus/uart.c

809

struct gb_tty *gb_tty;

drivers/staging/greybus/uart.c

826

gb_tty = kzalloc_obj(*gb_tty);

drivers/staging/greybus/uart.c

827

if (!gb_tty) {

drivers/staging/greybus/uart.c

832

tty_port_init(&gb_tty->port);

drivers/staging/greybus/uart.c

833

gb_tty->port.ops = &gb_port_ops;

drivers/staging/greybus/uart.c

834

gb_tty->minor = GB_NUM_MINORS;

drivers/staging/greybus/uart.c

836

gb_tty->buffer_payload_max = max_payload -

drivers/staging/greybus/uart.c

839

gb_tty->buffer = kzalloc(gb_tty->buffer_payload_max, GFP_KERNEL);

drivers/staging/greybus/uart.c

840

if (!gb_tty->buffer) {

drivers/staging/greybus/uart.c

845

INIT_WORK(&gb_tty->tx_work, gb_uart_tx_write_work);

drivers/staging/greybus/uart.c

847

retval = kfifo_alloc(&gb_tty->write_fifo, GB_UART_WRITE_FIFO_SIZE,

drivers/staging/greybus/uart.c

85

dev_err(&gb_tty->gbphy_dev->dev,

drivers/staging/greybus/uart.c

852

gb_tty->credits = GB_UART_FIRMWARE_CREDITS;

drivers/staging/greybus/uart.c

853

init_completion(&gb_tty->credits_complete);

drivers/staging/greybus/uart.c

855

minor = alloc_minor(gb_tty);

drivers/staging/greybus/uart.c

867

gb_tty->minor = minor;

drivers/staging/greybus/uart.c

868

spin_lock_init(&gb_tty->write_lock);

drivers/staging/greybus/uart.c

869

spin_lock_init(&gb_tty->read_lock);

drivers/staging/greybus/uart.c

870

init_waitqueue_head(&gb_tty->wioctl);

drivers/staging/greybus/uart.c

871

mutex_init(&gb_tty->mutex);

drivers/staging/greybus/uart.c

873

gb_tty->connection = connection;

drivers/staging/greybus/uart.c

874

gb_tty->gbphy_dev = gbphy_dev;

drivers/staging/greybus/uart.c

875

gb_connection_set_data(connection, gb_tty);

drivers/staging/greybus/uart.c

876

gb_gbphy_set_data(gbphy_dev, gb_tty);

drivers/staging/greybus/uart.c

882

retval = send_control(gb_tty, gb_tty->ctrlout);

drivers/staging/greybus/uart.c

887

gb_tty->line_coding.rate = cpu_to_le32(9600);

drivers/staging/greybus/uart.c

888

gb_tty->line_coding.format = GB_SERIAL_1_STOP_BITS;

drivers/staging/greybus/uart.c

889

gb_tty->line_coding.parity = GB_SERIAL_NO_PARITY;

drivers/staging/greybus/uart.c

890

gb_tty->line_coding.data_bits = 8;

drivers/staging/greybus/uart.c

891

retval = send_line_coding(gb_tty);

drivers/staging/greybus/uart.c

899

tty_dev = tty_port_register_device(&gb_tty->port, gb_tty_driver, minor,

drivers/staging/greybus/uart.c

912

tty_port_put(&gb_tty->port);

drivers/staging/greybus/uart.c

921

struct gb_tty *gb_tty = gb_gbphy_get_data(gbphy_dev);

drivers/staging/greybus/uart.c

922

struct gb_connection *connection = gb_tty->connection;

drivers/staging/greybus/uart.c

929

mutex_lock(&gb_tty->mutex);

drivers/staging/greybus/uart.c

930

gb_tty->disconnected = true;

drivers/staging/greybus/uart.c

932

wake_up_all(&gb_tty->wioctl);

drivers/staging/greybus/uart.c

933

mutex_unlock(&gb_tty->mutex);

drivers/staging/greybus/uart.c

935

tty_port_tty_vhangup(&gb_tty->port);

drivers/staging/greybus/uart.c

938

tty_unregister_device(gb_tty_driver, gb_tty->minor);

drivers/staging/greybus/uart.c

943

tty_port_put(&gb_tty->port);

drivers/staging/greybus/uart.c

95

dev_err(&gb_tty->gbphy_dev->dev,