Lines Matching refs:tail
117 if (CIRC_SPACE(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE) == 0) { in rs_put_char()
145 if (info->xmit.head == info->xmit.tail || tty->stopped) { in transmit_chars()
148 info->xmit.head, info->xmit.tail, tty->stopped); in transmit_chars()
160 count = min(CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE), in transmit_chars()
161 SERIAL_XMIT_SIZE - info->xmit.tail); in transmit_chars()
162 console->write(console, info->xmit.buf+info->xmit.tail, count); in transmit_chars()
164 info->xmit.tail = (info->xmit.tail+count) & (SERIAL_XMIT_SIZE-1); in transmit_chars()
169 count = CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE); in transmit_chars()
172 info->xmit.tail += count; in transmit_chars()
182 if (info->xmit.head == info->xmit.tail || tty->stopped || in rs_flush_chars()
201 c = CIRC_SPACE_TO_END(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE); in rs_write()
218 if (CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE) && in rs_write()
229 return CIRC_SPACE(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE); in rs_write_room()
236 return CIRC_CNT(info->xmit.head, info->xmit.tail, SERIAL_XMIT_SIZE); in rs_chars_in_buffer()
245 info->xmit.head = info->xmit.tail = 0; in rs_flush_buffer()
388 state->xmit.head = state->xmit.tail = 0; in activate()