SPARC: More Sun serial driver updates.

- Fully convert SUNSAB driver.
- Make Sun serial console selection more sensible.
- Misc bug fixes to all drivers.

include/asm-sparc64/sab82532.h → drivers/serial/sunsab.h

-/* $Id: sab82532.h,v 1.7 2001/05/23 23:09:10 ecd Exp $
- * sab82532.h: Register Definitions for the Siemens SAB82532 DUSCC
+/* sunsab.h: Register Definitions for the Siemens SAB82532 DUSCC
  *
  * Copyright (C) 1997  Eddie C. Dost  (ecd@skynet.be)
  */
 
-#ifndef _SPARC64_SAB82532_H
-#define _SPARC64_SAB82532_H
-
-#include <linux/types.h>
-#include <linux/serial.h>
-#include <linux/circ_buf.h>
+#ifndef _SUNSAB_H
+#define _SUNSAB_H
 
 struct sab82532_async_rd_regs {
 	u8	rfifo[0x20];	/* Receive FIFO				*/
@@ -120,8 +115,6 @@ union sab82532_async_regs {
 	__volatile__ struct sab82532_async_rw_regs	rw;
 };
 
-#define NR_PORTS			 2
-
 union sab82532_irq_status {
 	unsigned short			 stat;
 	struct {
@@ -130,62 +123,10 @@ union sab82532_irq_status {
 	} sreg;
 };
 
-struct sab82532 {
-	int				 magic;
-	int				 baud_base;
-	union sab82532_async_regs	*regs;
-	int				 irq;
-	int				 flags;		/* defined in tty.h */
-	int				 type;		/* SAB82532 version */
-	struct tty_struct		*tty;
-	int				 read_status_mask;
-	int				 ignore_status_mask;
-	int				 timeout;
-	int				 xmit_fifo_size;
-	int				 recv_fifo_size;
-	int				 custom_divisor;
-	int				 baud;
-	unsigned int			 cec_timeout;
-	unsigned int			 tec_timeout;
-	int				 x_char;
-	int				 close_delay;
-	unsigned short			 closing_wait;
-	unsigned short			 closing_wait2;
-	unsigned long			 irqflags;
-	int				 is_console;
-	unsigned char			 interrupt_mask0;
-	unsigned char			 interrupt_mask1;
-	unsigned char			 pvr_dtr_bit;
-	unsigned char			 pvr_dsr_bit;
-	unsigned char			 dcd;
-	unsigned char			 cts;
-	unsigned char			 dsr;
-	unsigned long			 event;
-	unsigned long			 last_active;
-	int				 line;
-	int				 count;
-	int				 blocked_open;
-	long				 session;
-	long				 pgrp;
-	struct circ_buf			 xmit;
-	struct tq_struct		 tqueue;
-	struct tq_struct		 tqueue_hangup;
-	struct async_icount		 icount;
-	struct termios			 normal_termios;
-	struct termios			 callout_termios;
-	wait_queue_head_t		 open_wait;
-	wait_queue_head_t		 close_wait;
-	wait_queue_head_t		 delta_msr_wait;
-	struct sab82532			*next;
-	struct sab82532			*prev;
-};
-
-
 /* irqflags bits */
 #define SAB82532_ALLS			0x00000001
 #define SAB82532_XPR			0x00000002
 
-
 /* RFIFO Status Byte */
 #define SAB82532_RSTAT_PE		0x80
 #define SAB82532_RSTAT_FE		0x40
@@ -377,4 +318,4 @@ struct sab82532 {
 #define SAB82532_CCR4_ICD		0x10
 
 
-#endif /* !(_SPARC64_SAB82532_H) */
+#endif /* !(_SUNSAB_H) */

drivers/serial/sunsu.c

@@ -1362,7 +1362,7 @@ static void sunsu_console_write(struct console *co, const char *s,
 
 static kdev_t sunsu_console_device(struct console *co)
 {
-	return mk_kdev(TTY_MAJOR, 64 + co->index);
+	return mk_kdev(sunsu_reg.major, sunsu_reg.minor + co->index);
 }
 
 /*
@@ -1379,6 +1379,9 @@ static int __init sunsu_console_setup(struct console *co, char *options)
 	int parity = 'n';
 	int flow = 'n';
 
+	printk("Console: ttyS%d (SU)\n",
+	       (sunsu_reg.minor - 64) + co->index);
+
 	/*
 	 * Check whether an invalid uart number has been specified, and
 	 * if so, search for the first available port that does have
@@ -1414,15 +1417,23 @@ static struct console sunsu_cons = {
 
 static int __init sunsu_serial_console_init(void)
 {
-	int index;
+	int i;
 
 	if (con_is_present())
 		return 0;
 
-	index = serial_console - 1;
-	if (sunsu_ports[index].port_node == 0)
+	for (i = 0; i < UART_NR; i++) {
+		int this_minor = sunsu_reg.minor + i;
+
+		if ((this_minor - 64) == (serial_console - 1))
+			break;
+	}
+	if (i == UART_NR)
 		return 0;
-	sunsu_cons.index = index;
+	if (sunsu_ports[i].port_node == 0)
+		return 0;
+
+	sunsu_cons.index = i;
 	register_console(&sunsu_cons);
 	return 0;
 }

drivers/serial/sunzilog.c

@@ -1013,7 +1013,6 @@ static struct uart_driver sunzilog_reg = {
 	.dev_name	=	"ttyS",
 #endif
 	.major		=	TTY_MAJOR,
-	.minor		=	64,
 };
 
 static void * __init alloc_one_table(unsigned long size)
@@ -1386,7 +1385,7 @@ sunzilog_console_write(struct console *con, const char *s, unsigned int count)
 
 static kdev_t sunzilog_console_device(struct console *con)
 {
-	return mk_kdev(TTY_MAJOR, 64 + con->index);
+	return mk_kdev(sunzilog_reg.major, sunzilog_reg.minor + con->index);
 }
 
 static int __init sunzilog_console_setup(struct console *con, char *options)
@@ -1395,7 +1394,8 @@ static int __init sunzilog_console_setup(struct console *con, char *options)
 	unsigned long flags;
 	int baud, brg;
 
-	printk("Console: ttyS%d (Zilog8530)\n", con->index / 2);
+	printk("Console: ttyS%d (Zilog8530)\n",
+	       (sunzilog_reg.minor - 64) + con->index);
 
 	/* Get firmware console settings.  */
 	sunserial_console_termios(con);
@@ -1447,10 +1447,21 @@ static struct console sunzilog_console = {
 
 static int __init sunzilog_console_init(void)
 {
+	int i;
+
 	if (con_is_present())
 		return 0;
 
-	sunzilog_console.index = serial_console - 1;
+	for (i = 0; i < NUM_CHANNELS; i++) {
+		int this_minor = sunzilog_reg.minor + i;
+
+		if ((this_minor - 64) == (serial_console - 1))
+			break;
+	}
+	if (i == NUM_CHANNELS)
+		return 0;
+
+	sunzilog_console.index = i;
 	register_console(&sunzilog_console);
 	return 0;
 }
@@ -1480,6 +1491,7 @@ static void __init sunzilog_prepare(void)
 		up[(chip * 2) + 0].port.uartclk = ZS_CLOCK;
 		up[(chip * 2) + 0].port.fifosize = 1;
 		up[(chip * 2) + 0].port.ops = &sunzilog_pops;
+		up[(chip * 2) + 0].port.type = PORT_SUNZILOG;
 		up[(chip * 2) + 0].port.flags = 0;
 		up[(chip * 2) + 0].port.line = (chip * 2) + 0;
 		up[(chip * 2) + 0].flags |= SUNZILOG_FLAG_IS_CHANNEL_A;
@@ -1490,6 +1502,7 @@ static void __init sunzilog_prepare(void)
 		up[(chip * 2) + 1].port.uartclk = ZS_CLOCK;
 		up[(chip * 2) + 1].port.fifosize = 1;
 		up[(chip * 2) + 1].port.ops = &sunzilog_pops;
+		up[(chip * 2) + 1].port.type = PORT_SUNZILOG;
 		up[(chip * 2) + 1].port.flags = 0;
 		up[(chip * 2) + 1].port.line = (chip * 2) + 1;
 		up[(chip * 2) + 1].flags |= 0;
@@ -1607,12 +1620,10 @@ static int __init sunzilog_ports_init(void)
 	 * in the system.
 	 */
 	sunzilog_reg.nr = NUM_CHANNELS;
-
-#ifdef CONFIG_SERIAL_CONSOLE
 	sunzilog_reg.cons = &sunzilog_console;
-#else
-	sunzilog_reg.cons = NULL;
-#endif
+
+	sunzilog_reg.minor = sunserial_current_minor;
+	sunserial_current_minor += NUM_CHANNELS;
 
 	ret = uart_register_driver(&sunzilog_reg);
 	if (ret == 0) {

include/linux/serial_core.h

@@ -51,6 +51,10 @@
 #define PORT_UART00	35
 #define PORT_21285	37
 
+/* Sparc type numbers.  */
+#define PORT_SUNZILOG	38
+#define PORT_SUNSAB	39
+
 #ifdef __KERNEL__
 
 #include <linux/config.h>