diff options
| -rw-r--r-- | drivers/mmc/card/sdio_uart.c | 41 |
1 files changed, 23 insertions, 18 deletions
diff --git a/drivers/mmc/card/sdio_uart.c b/drivers/mmc/card/sdio_uart.c index b8e7c5ae981..c2759dbfdfd 100644 --- a/drivers/mmc/card/sdio_uart.c +++ b/drivers/mmc/card/sdio_uart.c @@ -73,6 +73,7 @@ struct uart_icount { }; struct sdio_uart_port { + struct tty_port port; struct kref kref; struct tty_struct *tty; unsigned int index; @@ -172,7 +173,7 @@ static void sdio_uart_port_remove(struct sdio_uart_port *port) port->func = NULL; mutex_unlock(&port->func_lock); if (port->opened) - tty_hangup(port->tty); + tty_hangup(port->port.tty); mutex_unlock(&port->open_lock); sdio_release_irq(func); sdio_disable_func(func); @@ -391,7 +392,7 @@ static void sdio_uart_stop_rx(struct sdio_uart_port *port) static void sdio_uart_receive_chars(struct sdio_uart_port *port, unsigned int *status) { - struct tty_struct *tty = port->tty; + struct tty_struct *tty = port->port.tty; unsigned int ch, flag; int max_count = 256; @@ -446,6 +447,7 @@ static void sdio_uart_transmit_chars(struct sdio_uart_port *port) { struct circ_buf *xmit = &port->xmit; int count; + struct tty_struct *tty = port->port.tty; if (port->x_char) { sdio_out(port, UART_TX, port->x_char); @@ -453,7 +455,7 @@ static void sdio_uart_transmit_chars(struct sdio_uart_port *port) port->x_char = 0; return; } - if (circ_empty(xmit) || port->tty->stopped || port->tty->hw_stopped) { + if (circ_empty(xmit) || tty->stopped || tty->hw_stopped) { sdio_uart_stop_tx(port); return; } @@ -468,7 +470,7 @@ static void sdio_uart_transmit_chars(struct sdio_uart_port *port) } while (--count > 0); if (circ_chars_pending(xmit) < WAKEUP_CHARS) - tty_wakeup(port->tty); + tty_wakeup(tty); if (circ_empty(xmit)) sdio_uart_stop_tx(port); @@ -477,6 +479,7 @@ static void sdio_uart_transmit_chars(struct sdio_uart_port *port) static void sdio_uart_check_modem_status(struct sdio_uart_port *port) { int status; + struct tty_struct *tty = port->port.tty; status = sdio_in(port, UART_MSR); @@ -491,17 +494,17 @@ static void sdio_uart_check_modem_status(struct sdio_uart_port *port) port->icount.dcd++; if (status & UART_MSR_DCTS) { port->icount.cts++; - if (port->tty->termios->c_cflag & CRTSCTS) { + if (tty->termios->c_cflag & CRTSCTS) { int cts = (status & UART_MSR_CTS); - if (port->tty->hw_stopped) { + if (tty->hw_stopped) { if (cts) { - port->tty->hw_stopped = 0; + tty->hw_stopped = 0; sdio_uart_start_tx(port); - tty_wakeup(port->tty); + tty_wakeup(tty); } } else { if (!cts) { - port->tty->hw_stopped = 1; + tty->hw_stopped = 1; sdio_uart_stop_tx(port); } } @@ -546,12 +549,13 @@ static int sdio_uart_startup(struct sdio_uart_port *port) { unsigned long page; int ret; + struct tty_struct *tty = port->port.tty; /* * Set the TTY IO error marker - we will only clear this * once we have successfully opened the port. */ - set_bit(TTY_IO_ERROR, &port->tty->flags); + set_bit(TTY_IO_ERROR, &tty->flags); /* Initialise and allocate the transmit buffer. */ page = __get_free_page(GFP_KERNEL); @@ -595,14 +599,14 @@ static int sdio_uart_startup(struct sdio_uart_port *port) port->ier = UART_IER_RLSI | UART_IER_RDI | UART_IER_RTOIE | UART_IER_UUE; port->mctrl = TIOCM_OUT2; - sdio_uart_change_speed(port, port->tty->termios, NULL); + sdio_uart_change_speed(port, tty->termios, NULL); - if (port->tty->termios->c_cflag & CBAUD) + if (tty->termios->c_cflag & CBAUD) sdio_uart_set_mctrl(port, TIOCM_RTS | TIOCM_DTR); - if (port->tty->termios->c_cflag & CRTSCTS) + if (tty->termios->c_cflag & CRTSCTS) if (!(sdio_uart_get_mctrl(port) & TIOCM_CTS)) - port->tty->hw_stopped = 1; + tty->hw_stopped = 1; clear_bit(TTY_IO_ERROR, &port->tty->flags); @@ -634,7 +638,7 @@ static void sdio_uart_shutdown(struct sdio_uart_port *port) /* TODO: wait here for TX FIFO to drain */ /* Turn off DTR and RTS early. */ - if (port->tty->termios->c_cflag & HUPCL) + if (port->port.tty->termios->c_cflag & HUPCL) sdio_uart_clear_mctrl(port, TIOCM_DTR | TIOCM_RTS); /* Disable interrupts from this port */ @@ -684,11 +688,11 @@ static int sdio_uart_open(struct tty_struct *tty, struct file *filp) if (!port->opened) { tty->driver_data = port; - port->tty = tty; + port->port.tty = tty; ret = sdio_uart_startup(port); if (ret) { tty->driver_data = NULL; - port->tty = NULL; + port->port.tty = NULL; mutex_unlock(&port->open_lock); sdio_uart_port_put(port); return ret; @@ -723,7 +727,7 @@ static void sdio_uart_close(struct tty_struct *tty, struct file * filp) tty->closing = 1; sdio_uart_shutdown(port); tty_ldisc_flush(tty); - port->tty = NULL; + port->port.tty = NULL; tty->driver_data = NULL; tty->closing = 0; } @@ -1068,6 +1072,7 @@ static int sdio_uart_probe(struct sdio_func *func, port->func = func; sdio_set_drvdata(func, port); + tty_port_init(&port->port); ret = sdio_uart_add_port(port); if (ret) { |