drivers/tty/n_hdlc.c

148

static struct n_hdlc *n_hdlc_alloc(void);

drivers/tty/n_hdlc.c

156

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

159

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

drivers/tty/n_hdlc.c

160

n_hdlc_buf_put(&n_hdlc->rx_free_buf_list, buf);

drivers/tty/n_hdlc.c

165

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

168

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

drivers/tty/n_hdlc.c

169

n_hdlc_buf_put(&n_hdlc->tx_free_buf_list, buf);

drivers/tty/n_hdlc.c

191

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

202

cancel_work_sync(&n_hdlc->write_work);

drivers/tty/n_hdlc.c

204

n_hdlc_free_buf_list(&n_hdlc->rx_free_buf_list);

drivers/tty/n_hdlc.c

205

n_hdlc_free_buf_list(&n_hdlc->tx_free_buf_list);

drivers/tty/n_hdlc.c

206

n_hdlc_free_buf_list(&n_hdlc->rx_buf_list);

drivers/tty/n_hdlc.c

207

n_hdlc_free_buf_list(&n_hdlc->tx_buf_list);

drivers/tty/n_hdlc.c

208

kfree(n_hdlc);

drivers/tty/n_hdlc.c

219

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

224

if (n_hdlc) {

drivers/tty/n_hdlc.c

229

n_hdlc = n_hdlc_alloc();

drivers/tty/n_hdlc.c

230

if (!n_hdlc) {

drivers/tty/n_hdlc.c

235

INIT_WORK(&n_hdlc->write_work, n_hdlc_tty_write_work);

drivers/tty/n_hdlc.c

236

n_hdlc->tty_for_write_work = tty;

drivers/tty/n_hdlc.c

237

tty->disc_data = n_hdlc;

drivers/tty/n_hdlc.c

259

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

drivers/tty/n_hdlc.c

265

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

drivers/tty/n_hdlc.c

266

if (n_hdlc->tbusy) {

drivers/tty/n_hdlc.c

267

n_hdlc->woke_up = true;

drivers/tty/n_hdlc.c

270

n_hdlc->tbusy = true;

drivers/tty/n_hdlc.c

271

n_hdlc->woke_up = false;

drivers/tty/n_hdlc.c

274

tbuf = n_hdlc_buf_get(&n_hdlc->tx_buf_list);

drivers/tty/n_hdlc.c

284

n_hdlc_buf_return(&n_hdlc->tx_buf_list, tbuf);

drivers/tty/n_hdlc.c

296

n_hdlc_buf_put(&n_hdlc->tx_free_buf_list, tbuf);

drivers/tty/n_hdlc.c

302

tbuf = n_hdlc_buf_get(&n_hdlc->tx_buf_list);

drivers/tty/n_hdlc.c

310

n_hdlc_buf_return(&n_hdlc->tx_buf_list, tbuf);

drivers/tty/n_hdlc.c

319

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

drivers/tty/n_hdlc.c

320

n_hdlc->tbusy = false;

drivers/tty/n_hdlc.c

322

if (n_hdlc->woke_up)

drivers/tty/n_hdlc.c

334

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

drivers/tty/n_hdlc.c

335

struct tty_struct *tty = n_hdlc->tty_for_write_work;

drivers/tty/n_hdlc.c

337

n_hdlc_send_frames(n_hdlc, tty);

drivers/tty/n_hdlc.c

348

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

350

schedule_work(&n_hdlc->write_work);

drivers/tty/n_hdlc.c

366

register struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

377

buf = n_hdlc_buf_get(&n_hdlc->rx_free_buf_list);

drivers/tty/n_hdlc.c

383

if (n_hdlc->rx_buf_list.count < MAX_RX_BUF_COUNT)

drivers/tty/n_hdlc.c

397

n_hdlc_buf_put(&n_hdlc->rx_buf_list, buf);

drivers/tty/n_hdlc.c

421

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

443

rbuf = n_hdlc_buf_get(&n_hdlc->rx_buf_list);

drivers/tty/n_hdlc.c

492

if (n_hdlc->rx_free_buf_list.count > DEFAULT_RX_BUF_COUNT)

drivers/tty/n_hdlc.c

495

n_hdlc_buf_put(&n_hdlc->rx_free_buf_list, rbuf);

drivers/tty/n_hdlc.c

513

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

532

tbuf = n_hdlc_buf_get(&n_hdlc->tx_free_buf_list);

drivers/tty/n_hdlc.c

557

n_hdlc_buf_put(&n_hdlc->tx_buf_list, tbuf);

drivers/tty/n_hdlc.c

558

n_hdlc_send_frames(n_hdlc, tty);

drivers/tty/n_hdlc.c

576

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

586

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

drivers/tty/n_hdlc.c

587

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

drivers/tty/n_hdlc.c

600

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

drivers/tty/n_hdlc.c

601

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

drivers/tty/n_hdlc.c

634

struct n_hdlc *n_hdlc = tty->disc_data;

drivers/tty/n_hdlc.c

645

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

drivers/tty/n_hdlc.c

652

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

drivers/tty/n_hdlc.c

680

static struct n_hdlc *n_hdlc_alloc(void)

drivers/tty/n_hdlc.c

682

struct n_hdlc *n_hdlc = kzalloc_obj(*n_hdlc);

drivers/tty/n_hdlc.c

684

if (!n_hdlc)

drivers/tty/n_hdlc.c

687

spin_lock_init(&n_hdlc->rx_free_buf_list.spinlock);

drivers/tty/n_hdlc.c

688

spin_lock_init(&n_hdlc->tx_free_buf_list.spinlock);

drivers/tty/n_hdlc.c

689

spin_lock_init(&n_hdlc->rx_buf_list.spinlock);

drivers/tty/n_hdlc.c

690

spin_lock_init(&n_hdlc->tx_buf_list.spinlock);

drivers/tty/n_hdlc.c

692

INIT_LIST_HEAD(&n_hdlc->rx_free_buf_list.list);

drivers/tty/n_hdlc.c

693

INIT_LIST_HEAD(&n_hdlc->tx_free_buf_list.list);

drivers/tty/n_hdlc.c

694

INIT_LIST_HEAD(&n_hdlc->rx_buf_list.list);

drivers/tty/n_hdlc.c

695

INIT_LIST_HEAD(&n_hdlc->tx_buf_list.list);

drivers/tty/n_hdlc.c

697

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

drivers/tty/n_hdlc.c

698

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

drivers/tty/n_hdlc.c

700

return n_hdlc;