drivers/tty/n_hdlc.c

155

static struct n_hdlc *n_hdlc_alloc(void);

drivers/tty/n_hdlc.c

163

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

166

while ((buf = n_hdlc_buf_get(&n_hdlc->rx_buf_list)))

drivers/tty/n_hdlc.c

167

n_hdlc_buf_put(&n_hdlc->rx_free_buf_list, buf);

drivers/tty/n_hdlc.c

172

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

175

while ((buf = n_hdlc_buf_get(&n_hdlc->tx_buf_list)))

drivers/tty/n_hdlc.c

176

n_hdlc_buf_put(&n_hdlc->tx_free_buf_list, buf);

drivers/tty/n_hdlc.c

198

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

209

cancel_work_sync(&n_hdlc->write_work);

drivers/tty/n_hdlc.c

211

n_hdlc_free_buf_list(&n_hdlc->rx_free_buf_list);

drivers/tty/n_hdlc.c

212

n_hdlc_free_buf_list(&n_hdlc->tx_free_buf_list);

drivers/tty/n_hdlc.c

213

n_hdlc_free_buf_list(&n_hdlc->rx_buf_list);

drivers/tty/n_hdlc.c

214

n_hdlc_free_buf_list(&n_hdlc->tx_buf_list);

drivers/tty/n_hdlc.c

215

kfree(n_hdlc);

drivers/tty/n_hdlc.c

226

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

231

if (n_hdlc) {

drivers/tty/n_hdlc.c

236

n_hdlc = n_hdlc_alloc();

drivers/tty/n_hdlc.c

237

if (!n_hdlc) {

drivers/tty/n_hdlc.c

242

INIT_WORK(&n_hdlc->write_work, n_hdlc_tty_write_work);

drivers/tty/n_hdlc.c

243

n_hdlc->tty_for_write_work = tty;

drivers/tty/n_hdlc.c

244

tty->disc_data = n_hdlc;

drivers/tty/n_hdlc.c

266

static void n_hdlc_send_frames(struct n_hdlc *n_hdlc, struct tty_struct *tty)

drivers/tty/n_hdlc.c

272

scoped_guard(spinlock_irqsave, &n_hdlc->tx_buf_list.spinlock) {

drivers/tty/n_hdlc.c

273

if (n_hdlc->tbusy) {

drivers/tty/n_hdlc.c

274

n_hdlc->woke_up = true;

drivers/tty/n_hdlc.c

277

n_hdlc->tbusy = true;

drivers/tty/n_hdlc.c

278

n_hdlc->woke_up = false;

drivers/tty/n_hdlc.c

281

tbuf = n_hdlc_buf_get(&n_hdlc->tx_buf_list);

drivers/tty/n_hdlc.c

291

n_hdlc_buf_return(&n_hdlc->tx_buf_list, tbuf);

drivers/tty/n_hdlc.c

303

n_hdlc_buf_put(&n_hdlc->tx_free_buf_list, tbuf);

drivers/tty/n_hdlc.c

309

tbuf = n_hdlc_buf_get(&n_hdlc->tx_buf_list);

drivers/tty/n_hdlc.c

317

n_hdlc_buf_return(&n_hdlc->tx_buf_list, tbuf);

drivers/tty/n_hdlc.c

326

scoped_guard(spinlock_irqsave, &n_hdlc->tx_buf_list.spinlock)

drivers/tty/n_hdlc.c

327

n_hdlc->tbusy = false;

drivers/tty/n_hdlc.c

329

if (n_hdlc->woke_up)

drivers/tty/n_hdlc.c

341

struct n_hdlc *n_hdlc = container_of(work, struct n_hdlc, write_work);

drivers/tty/n_hdlc.c

342

struct tty_struct *tty = n_hdlc->tty_for_write_work;

drivers/tty/n_hdlc.c

344

n_hdlc_send_frames(n_hdlc, tty);

drivers/tty/n_hdlc.c

355

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

357

schedule_work(&n_hdlc->write_work);

drivers/tty/n_hdlc.c

373

register struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

384

buf = n_hdlc_buf_get(&n_hdlc->rx_free_buf_list);

drivers/tty/n_hdlc.c

390

if (n_hdlc->rx_buf_list.count < MAX_RX_BUF_COUNT)

drivers/tty/n_hdlc.c

404

n_hdlc_buf_put(&n_hdlc->rx_buf_list, buf);

drivers/tty/n_hdlc.c

428

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

450

rbuf = n_hdlc_buf_get(&n_hdlc->rx_buf_list);

drivers/tty/n_hdlc.c

499

if (n_hdlc->rx_free_buf_list.count > DEFAULT_RX_BUF_COUNT)

drivers/tty/n_hdlc.c

502

n_hdlc_buf_put(&n_hdlc->rx_free_buf_list, rbuf);

drivers/tty/n_hdlc.c

520

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

539

tbuf = n_hdlc_buf_get(&n_hdlc->tx_free_buf_list);

drivers/tty/n_hdlc.c

564

n_hdlc_buf_put(&n_hdlc->tx_buf_list, tbuf);

drivers/tty/n_hdlc.c

565

n_hdlc_send_frames(n_hdlc, tty);

drivers/tty/n_hdlc.c

583

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

593

scoped_guard(spinlock_irqsave, &n_hdlc->rx_buf_list.spinlock) {

drivers/tty/n_hdlc.c

594

buf = list_first_entry_or_null(&n_hdlc->rx_buf_list.list,

drivers/tty/n_hdlc.c

607

scoped_guard(spinlock_irqsave, &n_hdlc->tx_buf_list.spinlock) {

drivers/tty/n_hdlc.c

608

buf = list_first_entry_or_null(&n_hdlc->tx_buf_list.list,

drivers/tty/n_hdlc.c

641

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

652

if (!list_empty(&n_hdlc->rx_buf_list.list))

drivers/tty/n_hdlc.c

659

!list_empty(&n_hdlc->tx_free_buf_list.list))

drivers/tty/n_hdlc.c

687

static struct n_hdlc *n_hdlc_alloc(void)

drivers/tty/n_hdlc.c

689

struct n_hdlc *n_hdlc = kzalloc_obj(*n_hdlc);

drivers/tty/n_hdlc.c

691

if (!n_hdlc)

drivers/tty/n_hdlc.c

694

spin_lock_init(&n_hdlc->rx_free_buf_list.spinlock);

drivers/tty/n_hdlc.c

695

spin_lock_init(&n_hdlc->tx_free_buf_list.spinlock);

drivers/tty/n_hdlc.c

696

spin_lock_init(&n_hdlc->rx_buf_list.spinlock);

drivers/tty/n_hdlc.c

697

spin_lock_init(&n_hdlc->tx_buf_list.spinlock);

drivers/tty/n_hdlc.c

699

INIT_LIST_HEAD(&n_hdlc->rx_free_buf_list.list);

drivers/tty/n_hdlc.c

700

INIT_LIST_HEAD(&n_hdlc->tx_free_buf_list.list);

drivers/tty/n_hdlc.c

701

INIT_LIST_HEAD(&n_hdlc->rx_buf_list.list);

drivers/tty/n_hdlc.c

702

INIT_LIST_HEAD(&n_hdlc->tx_buf_list.list);

drivers/tty/n_hdlc.c

704

n_hdlc_alloc_buf(&n_hdlc->rx_free_buf_list, DEFAULT_RX_BUF_COUNT, "rx");

drivers/tty/n_hdlc.c

705

n_hdlc_alloc_buf(&n_hdlc->tx_free_buf_list, DEFAULT_TX_BUF_COUNT, "tx");

drivers/tty/n_hdlc.c

707

return n_hdlc;