ignore_char:
*status = serial_inp(up, UART_LSR);
} while ((*status & UART_LSR_DR) && (max_count-- > 0));
+ spin_unlock(&up->port.lock);
tty_flip_buffer_push(tty);
+ spin_lock(&up->port.lock);
}
static _INLINE_ void transmit_chars(struct uart_8250_port *up)
.cons = SERIAL8250_CONSOLE,
};
-/*
- * register_serial and unregister_serial allows for 16x50 serial ports to be
- * configured at run-time, to support PCMCIA modems.
- */
-
-static int __register_serial(struct serial_struct *req, int line)
-{
- struct uart_port port;
-
- port.iobase = req->port;
- port.membase = req->iomem_base;
- port.irq = req->irq;
- port.uartclk = req->baud_base * 16;
- port.fifosize = req->xmit_fifo_size;
- port.regshift = req->iomem_reg_shift;
- port.iotype = req->io_type;
- port.flags = req->flags | UPF_BOOT_AUTOCONF;
- port.mapbase = req->iomap_base;
- port.line = line;
-
- if (HIGH_BITS_OFFSET)
- port.iobase |= (long) req->port_high << HIGH_BITS_OFFSET;
-
- /*
- * If a clock rate wasn't specified by the low level
- * driver, then default to the standard clock rate.
- */
- if (port.uartclk == 0)
- port.uartclk = BASE_BAUD * 16;
-
- return uart_register_port(&serial8250_reg, &port);
-}
-
-/**
- * register_serial - configure a 16x50 serial port at runtime
- * @req: request structure
- *
- * Configure the serial port specified by the request. If the
- * port exists and is in use an error is returned. If the port
- * is not currently in the table it is added.
- *
- * The port is then probed and if necessary the IRQ is autodetected
- * If this fails an error is returned.
- *
- * On success the port is ready to use and the line number is returned.
- */
-int register_serial(struct serial_struct *req)
-{
- return __register_serial(req, -1);
-}
-
int __init early_serial_setup(struct uart_port *port)
{
serial8250_isa_init_ports();
return 0;
}
-/**
- * unregister_serial - remove a 16x50 serial port at runtime
- * @line: serial line number
- *
- * Remove one serial port. This may be called from interrupt
- * context.
- */
-void unregister_serial(int line)
-{
- uart_unregister_port(&serial8250_reg, line);
-}
-
/**
* serial8250_suspend_port - suspend one serial port
* @line: serial line number
module_init(serial8250_init);
module_exit(serial8250_exit);
-EXPORT_SYMBOL(register_serial);
-EXPORT_SYMBOL(unregister_serial);
EXPORT_SYMBOL(serial8250_suspend_port);
EXPORT_SYMBOL(serial8250_resume_port);