static int s3c_serial_startup(struct uart_port *port)
{
struct s3c_uart_port *ourport = to_ourport(port);
unsigned long flags;
int ret;
dbg("s3c_serial_startup: port=%p (%08lx,%p)\n",
port->mapbase, port->membase);
local_irq_save(flags);
rx_enabled(port) = 1;
tx_enabled(port) = 1;
#ifdef UART_HAS_INTMSK
uart_enable_irq(port, UART_TX_INT | UART_RX_INT);
ret = request_irq(UART_IRQ(port), s3c_serial_interrupt, 0,
s3c_serial_portname(port), ourport);
if (ret != 0) {
printk(KERN_ERR "cannot get irq %d\n", UART_IRQ(port));
return ret;
}
#else
ret = request_irq(RX_IRQ(port),
s3c_serial_rx_chars, 0,
s3c_serial_portname(port), ourport);
if (ret != 0) {
printk(KERN_ERR "cannot get irq %d\n", RX_IRQ(port));
return ret;
}
ret = request_irq(TX_IRQ(port),
s3c_serial_tx_chars, 0,
s3c_serial_portname(port), ourport);
if (ret) {
printk(KERN_ERR "cannot get irq %d\n", TX_IRQ(port));
s3c_serial_shutdown(port);
local_irq_restore(flags);
return ret;
}
#endif
ourport->rx_claimed = 1;
ourport->tx_claimed = 1;
dbg("s3c_serial_startup ok\n");
/* the port reset code should have done the correct
* register setup for the port controls */
local_irq_restore(flags);
return ret;
}
static int s3c_serial_startup(struct uart_port *port)
{
struct s3c_uart_port *ourport = to_ourport(port);
int ret;
dbg("s3c_serial_startup: port=%p (%08lx,%p)\n",
port->mapbase, port->membase);
rx_enabled(port) = 1;
ret = request_irq(ourport->rx_irq, s3c_serial_rx_chars, 0,
s3c_serial_portname(port), ourport);
if (ret != 0) {
printk(KERN_ERR "cannot get irq %d\n", ourport->rx_irq);
return ret;
}
ourport->rx_claimed = 1;
dbg("requesting tx irq...\n");
tx_enabled(port) = 1;
ret = request_irq(ourport->tx_irq, s3c_serial_tx_chars, 0,
s3c_serial_portname(port), ourport);
if (ret) {
printk(KERN_ERR "cannot get irq %d\n", ourport->tx_irq);
goto err;
}
ourport->tx_claimed = 1;
dbg("s3c_serial_startup ok\n");
/* the port reset code should have done the correct
* register setup for the port controls */
return ret;
err:
s3c_serial_shutdown(port);
return ret;
}
static int s3c_serial_request_port(struct uart_port *port)
{
const char *name = s3c_serial_portname(port);
return request_mem_region(port->mapbase, MAP_SIZE, name) ? 0 : -EBUSY;
}
