/*
- * dz.c: Serial port driver for DECStations equiped
+ * dz.c: Serial port driver for DECStations equiped
* with the DZ chipset.
*
- * Copyright (C) 1998 Olivier A. D. Lebaillif
- *
+ * Copyright (C) 1998 Olivier A. D. Lebaillif
+ *
* Email: olivier.lebaillif@ifrsys.com
*
* [31-AUG-98] triemer
* removed base_addr code - moving address assignment to setup.c
* Changed name of dz_init to rs_init to be consistent with tc code
* [13-NOV-98] triemer fixed code to receive characters
- * after patches by harald to irq code.
+ * after patches by harald to irq code.
* [09-JAN-99] triemer minor fix for schedule - due to removal of timeout
* field from "current" - somewhere between 2.1.121 and 2.1.131
Qua Jun 27 15:02:26 BRT 2001
* [27-JUN-2001] Arnaldo Carvalho de Melo <acme@conectiva.com.br> - cleanups
- *
- * Parts (C) 1999 David Airlie, airlied@linux.ie
- * [07-SEP-99] Bugfixes
+ *
+ * Parts (C) 1999 David Airlie, airlied@linux.ie
+ * [07-SEP-99] Bugfixes
*
* [06-Jan-2002] Russell King <rmk@arm.linux.org.uk>
* Converted to new serial core
#ifdef DEBUG_DZ
/*
- * debugging code to send out chars via prom
+ * debugging code to send out chars via prom
*/
static void debug_console(const char *s, int count)
{
* ------------------------------------------------------------
* dz_in () and dz_out ()
*
- * These routines are used to access the registers of the DZ
+ * These routines are used to access the registers of the DZ
* chip, hiding relocation differences between implementation.
* ------------------------------------------------------------
*/
* ------------------------------------------------------------
* rs_stop () and rs_start ()
*
- * These routines are called before setting or resetting
- * tty->stopped. They enable or disable transmitter interrupts,
+ * These routines are called before setting or resetting
+ * tty->stopped. They enable or disable transmitter interrupts,
* as necessary.
* ------------------------------------------------------------
*/
-static void dz_stop_tx(struct uart_port *uport, unsigned int tty_stop)
+static void dz_stop_tx(struct uart_port *uport)
{
struct dz_port *dport = (struct dz_port *)uport;
unsigned short tmp, mask = 1 << dport->port.line;
spin_unlock_irqrestore(&dport->port.lock, flags);
}
-static void dz_start_tx(struct uart_port *uport, unsigned int tty_start)
+static void dz_start_tx(struct uart_port *uport)
{
struct dz_port *dport = (struct dz_port *)uport;
unsigned short tmp, mask = 1 << dport->port.line;
/*
* ------------------------------------------------------------
- * Here starts the interrupt handling routines. All of the
- * following subroutines are declared as inline and are folded
- * into dz_interrupt. They were separated out for readability's
- * sake.
+ * Here starts the interrupt handling routines. All of the
+ * following subroutines are declared as inline and are folded
+ * into dz_interrupt. They were separated out for readability's
+ * sake.
*
* Note: rs_interrupt() is a "fast" interrupt, which means that it
* runs with interrupts turned off. People who may want to modify
* rs_interrupt() should try to keep the interrupt handler as fast as
* possible. After you are done making modifications, it is not a bad
* idea to do:
- *
+ *
* make drivers/serial/dz.s
*
* and look at the resulting assemble code in dz.s.
if (!tty)
break;
- if (tty->flip.count >= TTY_FLIPBUF_SIZE)
- break;
icount->rx++;
}
tty_insert_flip_char(tty, ch, flag);
ignore_char:
+ ;
} while (status & DZ_DVAL);
if (tty)
}
/* if nothing to do or stopped or hardware stopped */
if (uart_circ_empty(xmit) || uart_tx_stopped(&dport->port)) {
- dz_stop_tx(&dport->port, 0);
+ dz_stop_tx(&dport->port);
return;
}
/* Are we done */
if (uart_circ_empty(xmit))
- dz_stop_tx(&dport->port, 0);
+ dz_stop_tx(&dport->port);
}
/*
* startup ()
*
* various initialization tasks
- * -------------------------------------------------------------------
+ * -------------------------------------------------------------------
*/
static int dz_startup(struct uart_port *uport)
{
return 0;
}
-/*
+/*
* -------------------------------------------------------------------
* shutdown ()
*
* This routine will shutdown a serial port; interrupts are disabled, and
* DTR is dropped if the hangup on close termio flag is on.
- * -------------------------------------------------------------------
+ * -------------------------------------------------------------------
*/
static void dz_shutdown(struct uart_port *uport)
{
- dz_stop_tx(uport, 0);
+ dz_stop_tx(uport);
}
/*
* release the bus after transmitting. This must be done when
* the transmit shift register is empty, not be done when the
* transmit holding register is empty. This functionality
- * allows an RS485 driver to be written in user space.
+ * allows an RS485 driver to be written in user space.
*/
static unsigned int dz_tx_empty(struct uart_port *uport)
{
if (mips_machtype == MACH_DS23100 ||
mips_machtype == MACH_DS5100)
- base = (unsigned long) KN01_DZ11_BASE;
+ base = CKSEG1ADDR(KN01_SLOT_BASE + KN01_DZ11);
else
- base = (unsigned long) KN02_DZ11_BASE;
+ base = CKSEG1ADDR(KN02_SLOT_BASE + KN02_DZ11);
for (i = 0, dport = dz_ports; i < DZ_NB_PORT; i++, dport++) {
spin_lock_init(&dport->port.lock);
dport->port.membase = (char *) base;
- dport->port.iotype = SERIAL_IO_PORT;
+ dport->port.iotype = UPIO_PORT;
dport->port.irq = dec_interrupt[DEC_IRQ_DZ11];
dport->port.line = i;
dport->port.fifosize = 1;
}
#ifdef CONFIG_SERIAL_DZ_CONSOLE
-static void dz_console_put_char(struct dz_port *dport, unsigned char ch)
+static void dz_console_putchar(struct uart_port *port, int ch)
{
+ struct dz_port *dport = (struct dz_port *)uport;
unsigned long flags;
int loops = 2500;
- unsigned short tmp = ch;
+ unsigned short tmp = (unsigned char)ch;
/* this code sends stuff out to serial device - spinning its
wheels and waiting. */
spin_unlock_irqrestore(&dport->port.lock, flags);
}
-/*
+
+/*
* -------------------------------------------------------------------
* dz_console_print ()
*
* dz_console_print is registered for printk.
* The console must be locked when we get here.
- * -------------------------------------------------------------------
+ * -------------------------------------------------------------------
*/
static void dz_console_print(struct console *cons,
const char *str,
#ifdef DEBUG_DZ
prom_printf((char *) str);
#endif
- while (count--) {
- if (*str == '\n')
- dz_console_put_char(dport, '\r');
- dz_console_put_char(dport, *str++);
- }
+ uart_console_write(&dport->port, str, count, dz_console_putchar);
}
static int __init dz_console_setup(struct console *co, char *options)
git://git.onelab.eu / linux-2.6.git / blobdiff