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authorAdrian Bunk <bunk@stusta.de>2007-02-20 04:03:48 -0500
committerDavid S. Miller <davem@sunset.davemloft.net>2007-02-26 14:35:45 -0500
commitcacfd56756c087873f22dc9e2ace5f634775836a (patch)
treecee55aac078df4580c59d6cf6a409e8194be763f
parent2a786b452eba900324c29a8fcf5c96d5b1c01000 (diff)
[SPARC]: Remove the broken SUN_AURORA driver.
The SUN_AURORA driver: - has been marked as BROKEN for more than two years and - is still marked as BROKEN. Drivers that had been marked as BROKEN for such a long time seem to be unlikely to be revived in the forseeable future. But if anyone wants to ever revive this driver, the code is still present in the older kernel releases. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat
-rw-r--r--Documentation/magic-number.txt1
-rw-r--r--drivers/sbus/char/Kconfig7
-rw-r--r--drivers/sbus/char/Makefile1
-rw-r--r--drivers/sbus/char/aurora.c2364
-rw-r--r--drivers/sbus/char/aurora.h276
-rw-r--r--drivers/sbus/char/cd180.h240
6 files changed, 0 insertions, 2889 deletions
diff --git a/Documentation/magic-number.txt b/Documentation/magic-number.txt
index af67faccf4de..0e740c812d12 100644
--- a/Documentation/magic-number.txt
+++ b/Documentation/magic-number.txt
@@ -65,7 +65,6 @@ CMAGIC 0x0111 user include/linux/a.out.h
65MKISS_DRIVER_MAGIC 0x04bf mkiss_channel drivers/net/mkiss.h 65MKISS_DRIVER_MAGIC 0x04bf mkiss_channel drivers/net/mkiss.h
66RISCOM8_MAGIC 0x0907 riscom_port drivers/char/riscom8.h 66RISCOM8_MAGIC 0x0907 riscom_port drivers/char/riscom8.h
67SPECIALIX_MAGIC 0x0907 specialix_port drivers/char/specialix_io8.h 67SPECIALIX_MAGIC 0x0907 specialix_port drivers/char/specialix_io8.h
68AURORA_MAGIC 0x0A18 Aurora_port drivers/sbus/char/aurora.h
69HDLC_MAGIC 0x239e n_hdlc drivers/char/n_hdlc.c 68HDLC_MAGIC 0x239e n_hdlc drivers/char/n_hdlc.c
70APM_BIOS_MAGIC 0x4101 apm_user arch/i386/kernel/apm.c 69APM_BIOS_MAGIC 0x4101 apm_user arch/i386/kernel/apm.c
71CYCLADES_MAGIC 0x4359 cyclades_port include/linux/cyclades.h 70CYCLADES_MAGIC 0x4359 cyclades_port include/linux/cyclades.h
diff --git a/drivers/sbus/char/Kconfig b/drivers/sbus/char/Kconfig
index 3a8152906bf6..35a73168333f 100644
--- a/drivers/sbus/char/Kconfig
+++ b/drivers/sbus/char/Kconfig
@@ -46,13 +46,6 @@ config SUN_VIDEOPIX
46 based on the Phillips SAA9051, can handle NTSC and PAL/SECAM and 46 based on the Phillips SAA9051, can handle NTSC and PAL/SECAM and
47 SVIDEO signals. 47 SVIDEO signals.
48 48
49config SUN_AURORA
50 tristate "Aurora Multiboard 1600se (EXPERIMENTAL)"
51 depends on EXPERIMENTAL && BROKEN
52 help
53 The Aurora Multiboard is a multi-port high-speed serial controller.
54 If you have one of these, say Y.
55
56config TADPOLE_TS102_UCTRL 49config TADPOLE_TS102_UCTRL
57 tristate "Tadpole TS102 Microcontroller support (EXPERIMENTAL)" 50 tristate "Tadpole TS102 Microcontroller support (EXPERIMENTAL)"
58 depends on EXPERIMENTAL && SPARC32 51 depends on EXPERIMENTAL && SPARC32
diff --git a/drivers/sbus/char/Makefile b/drivers/sbus/char/Makefile
index 3a5ea1dc789a..7ab060e9a5fe 100644
--- a/drivers/sbus/char/Makefile
+++ b/drivers/sbus/char/Makefile
@@ -19,7 +19,6 @@ obj-$(CONFIG_SUN_OPENPROMIO) += openprom.o
19obj-$(CONFIG_SUN_MOSTEK_RTC) += rtc.o 19obj-$(CONFIG_SUN_MOSTEK_RTC) += rtc.o
20obj-$(CONFIG_SUN_BPP) += bpp.o 20obj-$(CONFIG_SUN_BPP) += bpp.o
21obj-$(CONFIG_SUN_VIDEOPIX) += vfc.o 21obj-$(CONFIG_SUN_VIDEOPIX) += vfc.o
22obj-$(CONFIG_SUN_AURORA) += aurora.o
23obj-$(CONFIG_TADPOLE_TS102_UCTRL) += uctrl.o 22obj-$(CONFIG_TADPOLE_TS102_UCTRL) += uctrl.o
24obj-$(CONFIG_SUN_JSFLASH) += jsflash.o 23obj-$(CONFIG_SUN_JSFLASH) += jsflash.o
25obj-$(CONFIG_BBC_I2C) += bbc.o 24obj-$(CONFIG_BBC_I2C) += bbc.o
diff --git a/drivers/sbus/char/aurora.c b/drivers/sbus/char/aurora.c
deleted file mode 100644
index a54b4ac67568..000000000000
--- a/drivers/sbus/char/aurora.c
+++ /dev/null
@@ -1,2364 +0,0 @@
1/* $Id: aurora.c,v 1.19 2002/01/08 16:00:16 davem Exp $
2 * linux/drivers/sbus/char/aurora.c -- Aurora multiport driver
3 *
4 * Copyright (c) 1999 by Oliver Aldulea (oli at bv dot ro)
5 *
6 * This code is based on the RISCom/8 multiport serial driver written
7 * by Dmitry Gorodchanin (pgmdsg@ibi.com), based on the Linux serial
8 * driver, written by Linus Torvalds, Theodore T'so and others.
9 * The Aurora multiport programming info was obtained mainly from the
10 * Cirrus Logic CD180 documentation (available on the web), and by
11 * doing heavy tests on the board. Many thanks to Eddie C. Dost for the
12 * help on the sbus interface.
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 *
28 * Revision 1.0
29 *
30 * This is the first public release.
31 *
32 * Most of the information you need is in the aurora.h file. Please
33 * read that file before reading this one.
34 *
35 * Several parts of the code do not have comments yet.
36 *
37 * n.b. The board can support 115.2 bit rates, but only on a few
38 * ports. The total badwidth of one chip (ports 0-7 or 8-15) is equal
39 * to OSC_FREQ div 16. In case of my board, each chip can take 6
40 * channels of 115.2 kbaud. This information is not well-tested.
41 *
42 * Fixed to use tty_get_baud_rate().
43 * Theodore Ts'o <tytso@mit.edu>, 2001-Oct-12
44 */
45
46#include <linux/module.h>
47
48#include <linux/errno.h>
49#include <linux/sched.h>
50#ifdef AURORA_INT_DEBUG
51#include <linux/timer.h>
52#endif
53#include <linux/interrupt.h>
54#include <linux/tty.h>
55#include <linux/tty_flip.h>
56#include <linux/major.h>
57#include <linux/string.h>
58#include <linux/fcntl.h>
59#include <linux/mm.h>
60#include <linux/kernel.h>
61#include <linux/init.h>
62#include <linux/delay.h>
63#include <linux/bitops.h>
64
65#include <asm/io.h>
66#include <asm/irq.h>
67#include <asm/oplib.h>
68#include <asm/system.h>
69#include <asm/kdebug.h>
70#include <asm/sbus.h>
71#include <asm/uaccess.h>
72
73#include "aurora.h"
74#include "cd180.h"
75
76unsigned char irqs[4] = {
77 0, 0, 0, 0
78};
79
80#ifdef AURORA_INT_DEBUG
81int irqhit=0;
82#endif
83
84static struct tty_driver *aurora_driver;
85static struct Aurora_board aurora_board[AURORA_NBOARD] = {
86 {0,},
87};
88
89static struct Aurora_port aurora_port[AURORA_TNPORTS] = {
90 { 0, },
91};
92
93/* no longer used. static struct Aurora_board * IRQ_to_board[16] = { NULL, } ;*/
94static unsigned char * tmp_buf = NULL;
95
96DECLARE_TASK_QUEUE(tq_aurora);
97
98static inline int aurora_paranoia_check(struct Aurora_port const * port,
99 char *name, const char *routine)
100{
101#ifdef AURORA_PARANOIA_CHECK
102 static const char *badmagic =
103 KERN_DEBUG "aurora: Warning: bad aurora port magic number for device %s in %s\n";
104 static const char *badinfo =
105 KERN_DEBUG "aurora: Warning: null aurora port for device %s in %s\n";
106
107 if (!port) {
108 printk(badinfo, name, routine);
109 return 1;
110 }
111 if (port->magic != AURORA_MAGIC) {
112 printk(badmagic, name, routine);
113 return 1;
114 }
115#endif
116 return 0;
117}
118
119/*
120 *
121 * Service functions for aurora driver.
122 *
123 */
124
125/* Get board number from pointer */
126static inline int board_No (struct Aurora_board const * bp)
127{
128 return bp - aurora_board;
129}
130
131/* Get port number from pointer */
132static inline int port_No (struct Aurora_port const * port)
133{
134 return AURORA_PORT(port - aurora_port);
135}
136
137/* Get pointer to board from pointer to port */
138static inline struct Aurora_board * port_Board(struct Aurora_port const * port)
139{
140 return &aurora_board[AURORA_BOARD(port - aurora_port)];
141}
142
143/* Wait for Channel Command Register ready */
144static inline void aurora_wait_CCR(struct aurora_reg128 * r)
145{
146 unsigned long delay;
147
148#ifdef AURORA_DEBUG
149printk("aurora_wait_CCR\n");
150#endif
151 /* FIXME: need something more descriptive than 100000 :) */
152 for (delay = 100000; delay; delay--)
153 if (!sbus_readb(&r->r[CD180_CCR]))
154 return;
155 printk(KERN_DEBUG "aurora: Timeout waiting for CCR.\n");
156}
157
158/*
159 * aurora probe functions.
160 */
161
162/* Must be called with enabled interrupts */
163static inline void aurora_long_delay(unsigned long delay)
164{
165 unsigned long i;
166
167#ifdef AURORA_DEBUG
168 printk("aurora_long_delay: start\n");
169#endif
170 for (i = jiffies + delay; time_before(jiffies, i); ) ;
171#ifdef AURORA_DEBUG
172 printk("aurora_long_delay: end\n");
173#endif
174}
175
176/* Reset and setup CD180 chip */
177static int aurora_init_CD180(struct Aurora_board * bp, int chip)
178{
179 unsigned long flags;
180 int id;
181
182#ifdef AURORA_DEBUG
183 printk("aurora_init_CD180: start %d:%d\n",
184 board_No(bp), chip);
185#endif
186 save_flags(flags); cli();
187 sbus_writeb(0, &bp->r[chip]->r[CD180_CAR]);
188 sbus_writeb(0, &bp->r[chip]->r[CD180_GSVR]);
189
190 /* Wait for CCR ready */
191 aurora_wait_CCR(bp->r[chip]);
192
193 /* Reset CD180 chip */
194 sbus_writeb(CCR_HARDRESET, &bp->r[chip]->r[CD180_CCR]);
195 udelay(1);
196 sti();
197 id=1000;
198 while((--id) &&
199 (sbus_readb(&bp->r[chip]->r[CD180_GSVR])!=0xff))udelay(100);
200 if(!id) {
201 printk(KERN_ERR "aurora%d: Chip %d failed init.\n",
202 board_No(bp), chip);
203 restore_flags(flags);
204 return(-1);
205 }
206 cli();
207 sbus_writeb((board_No(bp)<<5)|((chip+1)<<3),
208 &bp->r[chip]->r[CD180_GSVR]); /* Set ID for this chip */
209 sbus_writeb(0x80|bp->ACK_MINT,
210 &bp->r[chip]->r[CD180_MSMR]); /* Prio for modem intr */
211 sbus_writeb(0x80|bp->ACK_TINT,
212 &bp->r[chip]->r[CD180_TSMR]); /* Prio for transmitter intr */
213 sbus_writeb(0x80|bp->ACK_RINT,
214 &bp->r[chip]->r[CD180_RSMR]); /* Prio for receiver intr */
215 /* Setting up prescaler. We need 4 tick per 1 ms */
216 sbus_writeb((bp->oscfreq/(1000000/AURORA_TPS)) >> 8,
217 &bp->r[chip]->r[CD180_PPRH]);
218 sbus_writeb((bp->oscfreq/(1000000/AURORA_TPS)) & 0xff,
219 &bp->r[chip]->r[CD180_PPRL]);
220
221 sbus_writeb(SRCR_AUTOPRI|SRCR_GLOBPRI,
222 &bp->r[chip]->r[CD180_SRCR]);
223
224 id = sbus_readb(&bp->r[chip]->r[CD180_GFRCR]);
225 printk(KERN_INFO "aurora%d: Chip %d id %02x: ",
226 board_No(bp), chip,id);
227 if(sbus_readb(&bp->r[chip]->r[CD180_SRCR]) & 128) {
228 switch (id) {
229 case 0x82:printk("CL-CD1864 rev A\n");break;
230 case 0x83:printk("CL-CD1865 rev A\n");break;
231 case 0x84:printk("CL-CD1865 rev B\n");break;
232 case 0x85:printk("CL-CD1865 rev C\n");break;
233 default:printk("Unknown.\n");
234 };
235 } else {
236 switch (id) {
237 case 0x81:printk("CL-CD180 rev B\n");break;
238 case 0x82:printk("CL-CD180 rev C\n");break;
239 default:printk("Unknown.\n");
240 };
241 }
242 restore_flags(flags);
243#ifdef AURORA_DEBUG
244 printk("aurora_init_CD180: end\n");
245#endif
246 return 0;
247}
248
249static int valid_irq(unsigned char irq)
250{
251int i;
252for(i=0;i<TYPE_1_IRQS;i++)
253 if (type_1_irq[i]==irq) return 1;
254return 0;
255}
256
257static irqreturn_t aurora_interrupt(int irq, void * dev_id);
258
259/* Main probing routine, also sets irq. */
260static int aurora_probe(void)
261{
262 struct sbus_bus *sbus;
263 struct sbus_dev *sdev;
264 int grrr;
265 char buf[30];
266 int bn = 0;
267 struct Aurora_board *bp;
268
269 for_each_sbus(sbus) {
270 for_each_sbusdev(sdev, sbus) {
271/* printk("Try: %x %s\n",sdev,sdev->prom_name);*/
272 if (!strcmp(sdev->prom_name, "sio16")) {
273#ifdef AURORA_DEBUG
274 printk(KERN_INFO "aurora: sio16 at %p\n",sdev);
275#endif
276 if((sdev->reg_addrs[0].reg_size!=1) &&
277 (sdev->reg_addrs[1].reg_size!=128) &&
278 (sdev->reg_addrs[2].reg_size!=128) &&
279 (sdev->reg_addrs[3].reg_size!=4)) {
280 printk(KERN_ERR "aurora%d: registers' sizes "
281 "do not match.\n", bn);
282 break;
283 }
284 bp = &aurora_board[bn];
285 bp->r0 = (struct aurora_reg1 *)
286 sbus_ioremap(&sdev->resource[0], 0,
287 sdev->reg_addrs[0].reg_size,
288 "sio16");
289 if (bp->r0 == NULL) {
290 printk(KERN_ERR "aurora%d: can't map "
291 "reg_addrs[0]\n", bn);
292 break;
293 }
294#ifdef AURORA_DEBUG
295 printk("Map reg 0: %p\n", bp->r0);
296#endif
297 bp->r[0] = (struct aurora_reg128 *)
298 sbus_ioremap(&sdev->resource[1], 0,
299 sdev->reg_addrs[1].reg_size,
300 "sio16");
301 if (bp->r[0] == NULL) {
302 printk(KERN_ERR "aurora%d: can't map "
303 "reg_addrs[1]\n", bn);
304 break;
305 }
306#ifdef AURORA_DEBUG
307 printk("Map reg 1: %p\n", bp->r[0]);
308#endif
309 bp->r[1] = (struct aurora_reg128 *)
310 sbus_ioremap(&sdev->resource[2], 0,
311 sdev->reg_addrs[2].reg_size,
312 "sio16");
313 if (bp->r[1] == NULL) {
314 printk(KERN_ERR "aurora%d: can't map "
315 "reg_addrs[2]\n", bn);
316 break;
317 }
318#ifdef AURORA_DEBUG
319 printk("Map reg 2: %p\n", bp->r[1]);
320#endif
321 bp->r3 = (struct aurora_reg4 *)
322 sbus_ioremap(&sdev->resource[3], 0,
323 sdev->reg_addrs[3].reg_size,
324 "sio16");
325 if (bp->r3 == NULL) {
326 printk(KERN_ERR "aurora%d: can't map "
327 "reg_addrs[3]\n", bn);
328 break;
329 }
330#ifdef AURORA_DEBUG
331 printk("Map reg 3: %p\n", bp->r3);
332#endif
333 /* Variables setup */
334 bp->flags = 0;
335#ifdef AURORA_DEBUG
336 grrr=prom_getint(sdev->prom_node,"intr");
337 printk("intr pri %d\n", grrr);
338#endif
339 if ((bp->irq=irqs[bn]) && valid_irq(bp->irq) &&
340 !request_irq(bp->irq|0x30, aurora_interrupt, IRQF_SHARED, "sio16", bp)) {
341 free_irq(bp->irq|0x30, bp);
342 } else
343 if ((bp->irq=prom_getint(sdev->prom_node, "bintr")) && valid_irq(bp->irq) &&
344 !request_irq(bp->irq|0x30, aurora_interrupt, IRQF_SHARED, "sio16", bp)) {
345 free_irq(bp->irq|0x30, bp);
346 } else
347 if ((bp->irq=prom_getint(sdev->prom_node, "intr")) && valid_irq(bp->irq) &&
348 !request_irq(bp->irq|0x30, aurora_interrupt, IRQF_SHARED, "sio16", bp)) {
349 free_irq(bp->irq|0x30, bp);
350 } else
351 for(grrr=0;grrr<TYPE_1_IRQS;grrr++) {
352 if ((bp->irq=type_1_irq[grrr])&&!request_irq(bp->irq|0x30, aurora_interrupt, IRQF_SHARED, "sio16", bp)) {
353 free_irq(bp->irq|0x30, bp);
354 break;
355 } else {
356 printk(KERN_ERR "aurora%d: Could not get an irq for this board !!!\n",bn);
357 bp->flags=0xff;
358 }
359 }
360 if(bp->flags==0xff)break;
361 printk(KERN_INFO "aurora%d: irq %d\n",bn,bp->irq&0x0f);
362 buf[0]=0;
363 grrr=prom_getproperty(sdev->prom_node,"dtr_rts",buf,sizeof(buf));
364 if(!strcmp(buf,"swapped")){
365 printk(KERN_INFO "aurora%d: Swapped DTR and RTS\n",bn);
366 bp->DTR=MSVR_RTS;
367 bp->RTS=MSVR_DTR;
368 bp->MSVDTR=CD180_MSVRTS;
369 bp->MSVRTS=CD180_MSVDTR;
370 bp->flags|=AURORA_BOARD_DTR_FLOW_OK;
371 }else{
372 #ifdef AURORA_FORCE_DTR_FLOW
373 printk(KERN_INFO "aurora%d: Forcing swapped DTR-RTS\n",bn);
374 bp->DTR=MSVR_RTS;
375 bp->RTS=MSVR_DTR;
376 bp->MSVDTR=CD180_MSVRTS;
377 bp->MSVRTS=CD180_MSVDTR;
378 bp->flags|=AURORA_BOARD_DTR_FLOW_OK;
379 #else
380 printk(KERN_INFO "aurora%d: Normal DTR and RTS\n",bn);
381 bp->DTR=MSVR_DTR;
382 bp->RTS=MSVR_RTS;
383 bp->MSVDTR=CD180_MSVDTR;
384 bp->MSVRTS=CD180_MSVRTS;
385 #endif
386 }
387 bp->oscfreq=prom_getint(sdev->prom_node,"clk")*100;
388 printk(KERN_INFO "aurora%d: Oscillator: %d Hz\n",bn,bp->oscfreq);
389 grrr=prom_getproperty(sdev->prom_node,"chip",buf,sizeof(buf));
390 printk(KERN_INFO "aurora%d: Chips: %s\n",bn,buf);
391 grrr=prom_getproperty(sdev->prom_node,"manu",buf,sizeof(buf));
392 printk(KERN_INFO "aurora%d: Manufacturer: %s\n",bn,buf);
393 grrr=prom_getproperty(sdev->prom_node,"model",buf,sizeof(buf));
394 printk(KERN_INFO "aurora%d: Model: %s\n",bn,buf);
395 grrr=prom_getproperty(sdev->prom_node,"rev",buf,sizeof(buf));
396 printk(KERN_INFO "aurora%d: Revision: %s\n",bn,buf);
397 grrr=prom_getproperty(sdev->prom_node,"mode",buf,sizeof(buf));
398 printk(KERN_INFO "aurora%d: Mode: %s\n",bn,buf);
399 #ifdef MODULE
400 bp->count=0;
401 #endif
402 bp->flags = AURORA_BOARD_PRESENT;
403 /* hardware ack */
404 bp->ACK_MINT=1;
405 bp->ACK_TINT=2;
406 bp->ACK_RINT=3;
407 bn++;
408 }
409 }
410 }
411 return bn;
412}
413
414static void aurora_release_io_range(struct Aurora_board *bp)
415{
416 sbus_iounmap((unsigned long)bp->r0, 1);
417 sbus_iounmap((unsigned long)bp->r[0], 128);
418 sbus_iounmap((unsigned long)bp->r[1], 128);
419 sbus_iounmap((unsigned long)bp->r3, 4);
420}
421
422static inline void aurora_mark_event(struct Aurora_port * port, int event)
423{
424#ifdef AURORA_DEBUG
425 printk("aurora_mark_event: start\n");
426#endif
427 set_bit(event, &port->event);
428 queue_task(&port->tqueue, &tq_aurora);
429 mark_bh(AURORA_BH);
430#ifdef AURORA_DEBUG
431 printk("aurora_mark_event: end\n");
432#endif
433}
434
435static __inline__ struct Aurora_port * aurora_get_port(struct Aurora_board const * bp,
436 int chip,
437 unsigned char const *what)
438{
439 unsigned char channel;
440 struct Aurora_port * port;
441
442 channel = ((chip << 3) |
443 ((sbus_readb(&bp->r[chip]->r[CD180_GSCR]) & GSCR_CHAN) >> GSCR_CHAN_OFF));
444 port = &aurora_port[board_No(bp) * AURORA_NPORT * AURORA_NCD180 + channel];
445 if (port->flags & ASYNC_INITIALIZED)
446 return port;
447
448 printk(KERN_DEBUG "aurora%d: %s interrupt from invalid port %d\n",
449 board_No(bp), what, channel);
450 return NULL;
451}
452
453static void aurora_receive_exc(struct Aurora_board const * bp, int chip)
454{
455 struct Aurora_port *port;
456 struct tty_struct *tty;
457 unsigned char status;
458 unsigned char ch;
459
460 if (!(port = aurora_get_port(bp, chip, "Receive_x")))
461 return;
462
463 tty = port->tty;
464 if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
465#ifdef AURORA_INTNORM
466 printk("aurora%d: port %d: Working around flip buffer overflow.\n",
467 board_No(bp), port_No(port));
468#endif
469 return;
470 }
471
472#ifdef AURORA_REPORT_OVERRUN
473 status = sbus_readb(&bp->r[chip]->r[CD180_RCSR]);
474 if (status & RCSR_OE) {
475 port->overrun++;
476#if 1
477 printk("aurora%d: port %d: Overrun. Total %ld overruns.\n",
478 board_No(bp), port_No(port), port->overrun);
479#endif
480 }
481 status &= port->mark_mask;
482#else
483 status = sbus_readb(&bp->r[chip]->r[CD180_RCSR]) & port->mark_mask;
484#endif
485 ch = sbus_readb(&bp->r[chip]->r[CD180_RDR]);
486 if (!status)
487 return;
488
489 if (status & RCSR_TOUT) {
490/* printk("aurora%d: port %d: Receiver timeout. Hardware problems ?\n",
491 board_No(bp), port_No(port));*/
492 return;
493
494 } else if (status & RCSR_BREAK) {
495 printk(KERN_DEBUG "aurora%d: port %d: Handling break...\n",
496 board_No(bp), port_No(port));
497 *tty->flip.flag_buf_ptr++ = TTY_BREAK;
498 if (port->flags & ASYNC_SAK)
499 do_SAK(tty);
500
501 } else if (status & RCSR_PE)
502 *tty->flip.flag_buf_ptr++ = TTY_PARITY;
503
504 else if (status & RCSR_FE)
505 *tty->flip.flag_buf_ptr++ = TTY_FRAME;
506
507 else if (status & RCSR_OE)
508 *tty->flip.flag_buf_ptr++ = TTY_OVERRUN;
509
510 else
511 *tty->flip.flag_buf_ptr++ = 0;
512
513 *tty->flip.char_buf_ptr++ = ch;
514 tty->flip.count++;
515 queue_task(&tty->flip.tqueue, &tq_timer);
516}
517
518static void aurora_receive(struct Aurora_board const * bp, int chip)
519{
520 struct Aurora_port *port;
521 struct tty_struct *tty;
522 unsigned char count,cnt;
523
524 if (!(port = aurora_get_port(bp, chip, "Receive")))
525 return;
526
527 tty = port->tty;
528
529 count = sbus_readb(&bp->r[chip]->r[CD180_RDCR]);
530
531#ifdef AURORA_REPORT_FIFO
532 port->hits[count > 8 ? 9 : count]++;
533#endif
534
535 while (count--) {
536 if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
537#ifdef AURORA_INTNORM
538 printk("aurora%d: port %d: Working around flip buffer overflow.\n",
539 board_No(bp), port_No(port));
540#endif
541 break;
542 }
543 cnt = sbus_readb(&bp->r[chip]->r[CD180_RDR]);
544 *tty->flip.char_buf_ptr++ = cnt;
545 *tty->flip.flag_buf_ptr++ = 0;
546 tty->flip.count++;
547 }
548 queue_task(&tty->flip.tqueue, &tq_timer);
549}
550
551static void aurora_transmit(struct Aurora_board const * bp, int chip)
552{
553 struct Aurora_port *port;
554 struct tty_struct *tty;
555 unsigned char count;
556
557 if (!(port = aurora_get_port(bp, chip, "Transmit")))
558 return;
559
560 tty = port->tty;
561
562 if (port->SRER & SRER_TXEMPTY) {
563 /* FIFO drained */
564 sbus_writeb(port_No(port) & 7,
565 &bp->r[chip]->r[CD180_CAR]);
566 udelay(1);
567 port->SRER &= ~SRER_TXEMPTY;
568 sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
569 return;
570 }
571
572 if ((port->xmit_cnt <= 0 && !port->break_length)
573 || tty->stopped || tty->hw_stopped) {
574 sbus_writeb(port_No(port) & 7,
575 &bp->r[chip]->r[CD180_CAR]);
576 udelay(1);
577 port->SRER &= ~SRER_TXRDY;
578 sbus_writeb(port->SRER,
579 &bp->r[chip]->r[CD180_SRER]);
580 return;
581 }
582
583 if (port->break_length) {
584 if (port->break_length > 0) {
585 if (port->COR2 & COR2_ETC) {
586 sbus_writeb(CD180_C_ESC,
587 &bp->r[chip]->r[CD180_TDR]);
588 sbus_writeb(CD180_C_SBRK,
589 &bp->r[chip]->r[CD180_TDR]);
590 port->COR2 &= ~COR2_ETC;
591 }
592 count = min(port->break_length, 0xff);
593 sbus_writeb(CD180_C_ESC,
594 &bp->r[chip]->r[CD180_TDR]);
595 sbus_writeb(CD180_C_DELAY,
596 &bp->r[chip]->r[CD180_TDR]);
597 sbus_writeb(count,
598 &bp->r[chip]->r[CD180_TDR]);
599 if (!(port->break_length -= count))
600 port->break_length--;
601 } else {
602 sbus_writeb(CD180_C_ESC,
603 &bp->r[chip]->r[CD180_TDR]);
604 sbus_writeb(CD180_C_EBRK,
605 &bp->r[chip]->r[CD180_TDR]);
606 sbus_writeb(port->COR2,
607 &bp->r[chip]->r[CD180_COR2]);
608 aurora_wait_CCR(bp->r[chip]);
609 sbus_writeb(CCR_CORCHG2,
610 &bp->r[chip]->r[CD180_CCR]);
611 port->break_length = 0;
612 }
613 return;
614 }
615
616 count = CD180_NFIFO;
617 do {
618 u8 byte = port->xmit_buf[port->xmit_tail++];
619
620 sbus_writeb(byte, &bp->r[chip]->r[CD180_TDR]);
621 port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE-1);
622 if (--port->xmit_cnt <= 0)
623 break;
624 } while (--count > 0);
625
626 if (port->xmit_cnt <= 0) {
627 sbus_writeb(port_No(port) & 7,
628 &bp->r[chip]->r[CD180_CAR]);
629 udelay(1);
630 port->SRER &= ~SRER_TXRDY;
631 sbus_writeb(port->SRER,
632 &bp->r[chip]->r[CD180_SRER]);
633 }
634 if (port->xmit_cnt <= port->wakeup_chars)
635 aurora_mark_event(port, RS_EVENT_WRITE_WAKEUP);
636}
637
638static void aurora_check_modem(struct Aurora_board const * bp, int chip)
639{
640 struct Aurora_port *port;
641 struct tty_struct *tty;
642 unsigned char mcr;
643
644 if (!(port = aurora_get_port(bp, chip, "Modem")))
645 return;
646
647 tty = port->tty;
648
649 mcr = sbus_readb(&bp->r[chip]->r[CD180_MCR]);
650 if (mcr & MCR_CDCHG) {
651 if (sbus_readb(&bp->r[chip]->r[CD180_MSVR]) & MSVR_CD)
652 wake_up_interruptible(&port->open_wait);
653 else
654 schedule_task(&port->tqueue_hangup);
655 }
656
657/* We don't have such things yet. My aurora board has DTR and RTS swapped, but that doesn't count in this driver. Let's hope
658 * Aurora didn't made any boards with CTS or DSR broken...
659 */
660/* #ifdef AURORA_BRAIN_DAMAGED_CTS
661 if (mcr & MCR_CTSCHG) {
662 if (aurora_in(bp, CD180_MSVR) & MSVR_CTS) {
663 tty->hw_stopped = 0;
664 port->SRER |= SRER_TXRDY;
665 if (port->xmit_cnt <= port->wakeup_chars)
666 aurora_mark_event(port, RS_EVENT_WRITE_WAKEUP);
667 } else {
668 tty->hw_stopped = 1;
669 port->SRER &= ~SRER_TXRDY;
670 }
671 sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
672 }
673 if (mcr & MCR_DSRCHG) {
674 if (aurora_in(bp, CD180_MSVR) & MSVR_DSR) {
675 tty->hw_stopped = 0;
676 port->SRER |= SRER_TXRDY;
677 if (port->xmit_cnt <= port->wakeup_chars)
678 aurora_mark_event(port, RS_EVENT_WRITE_WAKEUP);
679 } else {
680 tty->hw_stopped = 1;
681 port->SRER &= ~SRER_TXRDY;
682 }
683 sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
684 }
685#endif AURORA_BRAIN_DAMAGED_CTS */
686
687 /* Clear change bits */
688 sbus_writeb(0, &bp->r[chip]->r[CD180_MCR]);
689}
690
691/* The main interrupt processing routine */
692static irqreturn_t aurora_interrupt(int irq, void * dev_id)
693{
694 unsigned char status;
695 unsigned char ack,chip/*,chip_id*/;
696 struct Aurora_board * bp = (struct Aurora_board *) dev_id;
697 unsigned long loop = 0;
698
699#ifdef AURORA_INT_DEBUG
700 printk("IRQ%d %d\n",irq,++irqhit);
701#ifdef AURORA_FLOODPRO
702 if (irqhit>=AURORA_FLOODPRO)
703 sbus_writeb(8, &bp->r0->r);
704#endif
705#endif
706
707/* old bp = IRQ_to_board[irq&0x0f];*/
708
709 if (!bp || !(bp->flags & AURORA_BOARD_ACTIVE))
710 return IRQ_NONE;
711
712/* The while() below takes care of this.
713 status = sbus_readb(&bp->r[0]->r[CD180_SRSR]);
714#ifdef AURORA_INT_DEBUG
715 printk("mumu: %02x\n", status);
716#endif
717 if (!(status&SRSR_ANYINT))
718 return IRQ_NONE; * Nobody has anything to say, so exit *
719*/
720 while ((loop++ < 48) &&
721 (status = sbus_readb(&bp->r[0]->r[CD180_SRSR]) & SRSR_ANYINT)){
722#ifdef AURORA_INT_DEBUG
723 printk("SRSR: %02x\n", status);
724#endif
725 if (status & SRSR_REXT) {
726 ack = sbus_readb(&bp->r3->r[bp->ACK_RINT]);
727#ifdef AURORA_INT_DEBUG
728 printk("R-ACK %02x\n", ack);
729#endif
730 if ((ack >> 5) == board_No(bp)) {
731 if ((chip=((ack>>3)&3)-1) < AURORA_NCD180) {
732 if ((ack&GSVR_ITMASK)==GSVR_IT_RGD) {
733 aurora_receive(bp,chip);
734 sbus_writeb(0,
735 &bp->r[chip]->r[CD180_EOSRR]);
736 } else if ((ack & GSVR_ITMASK) == GSVR_IT_REXC) {
737 aurora_receive_exc(bp,chip);
738 sbus_writeb(0,
739 &bp->r[chip]->r[CD180_EOSRR]);
740 }
741 }
742 }
743 } else if (status & SRSR_TEXT) {
744 ack = sbus_readb(&bp->r3->r[bp->ACK_TINT]);
745#ifdef AURORA_INT_DEBUG
746 printk("T-ACK %02x\n", ack);
747#endif
748 if ((ack >> 5) == board_No(bp)) {
749 if ((chip=((ack>>3)&3)-1) < AURORA_NCD180) {
750 if ((ack&GSVR_ITMASK)==GSVR_IT_TX) {
751 aurora_transmit(bp,chip);
752 sbus_writeb(0,
753 &bp->r[chip]->r[CD180_EOSRR]);
754 }
755 }
756 }
757 } else if (status & SRSR_MEXT) {
758 ack = sbus_readb(&bp->r3->r[bp->ACK_MINT]);
759#ifdef AURORA_INT_DEBUG
760 printk("M-ACK %02x\n", ack);
761#endif
762 if ((ack >> 5) == board_No(bp)) {
763 if ((chip = ((ack>>3)&3)-1) < AURORA_NCD180) {
764 if ((ack&GSVR_ITMASK)==GSVR_IT_MDM) {
765 aurora_check_modem(bp,chip);
766 sbus_writeb(0,
767 &bp->r[chip]->r[CD180_EOSRR]);
768 }
769 }
770 }
771 }
772 }
773/* I guess this faster code can be used with CD1865, using AUROPRI and GLOBPRI. */
774#if 0
775 while ((loop++ < 48)&&(status=bp->r[0]->r[CD180_SRSR]&SRSR_ANYINT)){
776#ifdef AURORA_INT_DEBUG
777 printk("SRSR: %02x\n",status);
778#endif
779 ack = sbus_readb(&bp->r3->r[0]);
780#ifdef AURORA_INT_DEBUG
781 printk("ACK: %02x\n",ack);
782#endif
783 if ((ack>>5)==board_No(bp)) {
784 if ((chip=((ack>>3)&3)-1) < AURORA_NCD180) {
785 ack&=GSVR_ITMASK;
786 if (ack==GSVR_IT_RGD) {
787 aurora_receive(bp,chip);
788 sbus_writeb(0,
789 &bp->r[chip]->r[CD180_EOSRR]);
790 } else if (ack==GSVR_IT_REXC) {
791 aurora_receive_exc(bp,chip);
792 sbus_writeb(0,
793 &bp->r[chip]->r[CD180_EOSRR]);
794 } else if (ack==GSVR_IT_TX) {
795 aurora_transmit(bp,chip);
796 sbus_writeb(0,
797 &bp->r[chip]->r[CD180_EOSRR]);
798 } else if (ack==GSVR_IT_MDM) {
799 aurora_check_modem(bp,chip);
800 sbus_writeb(0,
801 &bp->r[chip]->r[CD180_EOSRR]);
802 }
803 }
804 }
805 }
806#endif
807
808/* This is the old handling routine, used in riscom8 for only one CD180. I keep it here for reference. */
809#if 0
810 for(chip=0;chip<AURORA_NCD180;chip++){
811 chip_id=(board_No(bp)<<5)|((chip+1)<<3);
812 loop=0;
813 while ((loop++ < 1) &&
814 ((status = sbus_readb(&bp->r[chip]->r[CD180_SRSR])) &
815 (SRSR_TEXT | SRSR_MEXT | SRSR_REXT))) {
816
817 if (status & SRSR_REXT) {
818 ack = sbus_readb(&bp->r3->r[bp->ACK_RINT]);
819 if (ack == (chip_id | GSVR_IT_RGD)) {
820#ifdef AURORA_INTMSG
821 printk("RX ACK\n");
822#endif
823 aurora_receive(bp,chip);
824 } else if (ack == (chip_id | GSVR_IT_REXC)) {
825#ifdef AURORA_INTMSG
826 printk("RXC ACK\n");
827#endif
828 aurora_receive_exc(bp,chip);
829 } else {
830#ifdef AURORA_INTNORM
831 printk("aurora%d-%d: Bad receive ack 0x%02x.\n",
832 board_No(bp), chip, ack);
833#endif
834 }
835 } else if (status & SRSR_TEXT) {
836 ack = sbus_readb(&bp->r3->r[bp->ACK_TINT]);
837 if (ack == (chip_id | GSVR_IT_TX)){
838#ifdef AURORA_INTMSG
839 printk("TX ACK\n");
840#endif
841 aurora_transmit(bp,chip);
842 } else {
843#ifdef AURORA_INTNORM
844 printk("aurora%d-%d: Bad transmit ack 0x%02x.\n",
845 board_No(bp), chip, ack);
846#endif
847 }
848 } else if (status & SRSR_MEXT) {
849 ack = sbus_readb(&bp->r3->r[bp->ACK_MINT]);
850 if (ack == (chip_id | GSVR_IT_MDM)){
851#ifdef AURORA_INTMSG
852 printk("MDM ACK\n");
853#endif
854 aurora_check_modem(bp,chip);
855 } else {
856#ifdef AURORA_INTNORM
857 printk("aurora%d-%d: Bad modem ack 0x%02x.\n",
858 board_No(bp), chip, ack);
859#endif
860 }
861 }
862 sbus_writeb(0, &bp->r[chip]->r[CD180_EOSRR]);
863 }
864 }
865#endif
866
867 return IRQ_HANDLED;
868}
869
870#ifdef AURORA_INT_DEBUG
871static void aurora_timer (unsigned long ignored);
872
873static DEFINE_TIMER(aurora_poll_timer, aurora_timer, 0, 0);
874
875static void
876aurora_timer (unsigned long ignored)
877{
878 unsigned long flags;
879 int i;
880
881 save_flags(flags); cli();
882
883 printk("SRSR: %02x,%02x - ",
884 sbus_readb(&aurora_board[0].r[0]->r[CD180_SRSR]),
885 sbus_readb(&aurora_board[0].r[1]->r[CD180_SRSR]));
886 for (i = 0; i < 4; i++) {
887 udelay(1);
888 printk("%02x ",
889 sbus_readb(&aurora_board[0].r3->r[i]));
890 }
891 printk("\n");
892
893 aurora_poll_timer.expires = jiffies + 300;
894 add_timer (&aurora_poll_timer);
895
896 restore_flags(flags);
897}
898#endif
899
900/*
901 * Routines for open & close processing.
902 */
903
904/* Called with disabled interrupts */
905static int aurora_setup_board(struct Aurora_board * bp)
906{
907 int error;
908
909#ifdef AURORA_ALLIRQ
910 int i;
911 for (i = 0; i < AURORA_ALLIRQ; i++) {
912 error = request_irq(allirq[i]|0x30, aurora_interrupt, IRQF_SHARED,
913 "sio16", bp);
914 if (error)
915 printk(KERN_ERR "IRQ%d request error %d\n",
916 allirq[i], error);
917 }
918#else
919 error = request_irq(bp->irq|0x30, aurora_interrupt, IRQF_SHARED,
920 "sio16", bp);
921 if (error) {
922 printk(KERN_ERR "IRQ request error %d\n", error);
923 return error;
924 }
925#endif
926 /* Board reset */
927 sbus_writeb(0, &bp->r0->r);
928 udelay(1);
929 if (bp->flags & AURORA_BOARD_TYPE_2) {
930 /* unknown yet */
931 } else {
932 sbus_writeb((AURORA_CFG_ENABLE_IO | AURORA_CFG_ENABLE_IRQ |
933 (((bp->irq)&0x0f)>>2)),
934 &bp->r0->r);
935 }
936 udelay(10000);
937
938 if (aurora_init_CD180(bp,0))error=1;error=0;
939 if (aurora_init_CD180(bp,1))error++;
940 if (error == AURORA_NCD180) {
941 printk(KERN_ERR "Both chips failed initialisation.\n");
942 return -EIO;
943 }
944
945#ifdef AURORA_INT_DEBUG
946 aurora_poll_timer.expires= jiffies + 1;
947 add_timer(&aurora_poll_timer);
948#endif
949#ifdef AURORA_DEBUG
950 printk("aurora_setup_board: end\n");
951#endif
952 return 0;
953}
954
955/* Called with disabled interrupts */
956static void aurora_shutdown_board(struct Aurora_board *bp)
957{
958 int i;
959
960#ifdef AURORA_DEBUG
961 printk("aurora_shutdown_board: start\n");
962#endif
963
964#ifdef AURORA_INT_DEBUG
965 del_timer(&aurora_poll_timer);
966#endif
967
968#ifdef AURORA_ALLIRQ
969 for(i=0;i<AURORA_ALLIRQ;i++){
970 free_irq(allirq[i]|0x30, bp);
971/* IRQ_to_board[allirq[i]&0xf] = NULL;*/
972 }
973#else
974 free_irq(bp->irq|0x30, bp);
975/* IRQ_to_board[bp->irq&0xf] = NULL;*/
976#endif
977 /* Drop all DTR's */
978 for(i=0;i<16;i++){
979 sbus_writeb(i & 7, &bp->r[i>>3]->r[CD180_CAR]);
980 udelay(1);
981 sbus_writeb(0, &bp->r[i>>3]->r[CD180_MSVR]);
982 udelay(1);
983 }
984 /* Board shutdown */
985 sbus_writeb(0, &bp->r0->r);
986
987#ifdef AURORA_DEBUG
988 printk("aurora_shutdown_board: end\n");
989#endif
990}
991
992/* Setting up port characteristics.
993 * Must be called with disabled interrupts
994 */
995static void aurora_change_speed(struct Aurora_board *bp, struct Aurora_port *port)
996{
997 struct tty_struct *tty;
998 unsigned long baud;
999 long tmp;
1000 unsigned char cor1 = 0, cor3 = 0;
1001 unsigned char mcor1 = 0, mcor2 = 0,chip;
1002
1003#ifdef AURORA_DEBUG
1004 printk("aurora_change_speed: start\n");
1005#endif
1006 if (!(tty = port->tty) || !tty->termios)
1007 return;
1008
1009 chip = AURORA_CD180(port_No(port));
1010
1011 port->SRER = 0;
1012 port->COR2 = 0;
1013 port->MSVR = MSVR_RTS|MSVR_DTR;
1014
1015 baud = tty_get_baud_rate(tty);
1016
1017 /* Select port on the board */
1018 sbus_writeb(port_No(port) & 7,
1019 &bp->r[chip]->r[CD180_CAR]);
1020 udelay(1);
1021
1022 if (!baud) {
1023 /* Drop DTR & exit */
1024 port->MSVR &= ~(bp->DTR|bp->RTS);
1025 sbus_writeb(port->MSVR,
1026 &bp->r[chip]->r[CD180_MSVR]);
1027 return;
1028 } else {
1029 /* Set DTR on */
1030 port->MSVR |= bp->DTR;
1031 sbus_writeb(port->MSVR,
1032 &bp->r[chip]->r[CD180_MSVR]);
1033 }
1034
1035 /* Now we must calculate some speed dependent things. */
1036
1037 /* Set baud rate for port. */
1038 tmp = (((bp->oscfreq + baud/2) / baud +
1039 CD180_TPC/2) / CD180_TPC);
1040
1041/* tmp = (bp->oscfreq/7)/baud;
1042 if((tmp%10)>4)tmp=tmp/10+1;else tmp=tmp/10;*/
1043/* printk("Prescaler period: %d\n",tmp);*/
1044
1045 sbus_writeb((tmp >> 8) & 0xff,
1046 &bp->r[chip]->r[CD180_RBPRH]);
1047 sbus_writeb((tmp >> 8) & 0xff,
1048 &bp->r[chip]->r[CD180_TBPRH]);
1049 sbus_writeb(tmp & 0xff, &bp->r[chip]->r[CD180_RBPRL]);
1050 sbus_writeb(tmp & 0xff, &bp->r[chip]->r[CD180_TBPRL]);
1051
1052 baud = (baud + 5) / 10; /* Estimated CPS */
1053
1054 /* Two timer ticks seems enough to wakeup something like SLIP driver */
1055 tmp = ((baud + HZ/2) / HZ) * 2 - CD180_NFIFO;
1056 port->wakeup_chars = (tmp < 0) ? 0 : ((tmp >= SERIAL_XMIT_SIZE) ?
1057 SERIAL_XMIT_SIZE - 1 : tmp);
1058
1059 /* Receiver timeout will be transmission time for 1.5 chars */
1060 tmp = (AURORA_TPS + AURORA_TPS/2 + baud/2) / baud;
1061 tmp = (tmp > 0xff) ? 0xff : tmp;
1062 sbus_writeb(tmp, &bp->r[chip]->r[CD180_RTPR]);
1063
1064 switch (C_CSIZE(tty)) {
1065 case CS5:
1066 cor1 |= COR1_5BITS;
1067 break;
1068 case CS6:
1069 cor1 |= COR1_6BITS;
1070 break;
1071 case CS7:
1072 cor1 |= COR1_7BITS;
1073 break;
1074 case CS8:
1075 cor1 |= COR1_8BITS;
1076 break;
1077 }
1078
1079 if (C_CSTOPB(tty))
1080 cor1 |= COR1_2SB;
1081
1082 cor1 |= COR1_IGNORE;
1083 if (C_PARENB(tty)) {
1084 cor1 |= COR1_NORMPAR;
1085 if (C_PARODD(tty))
1086 cor1 |= COR1_ODDP;
1087 if (I_INPCK(tty))
1088 cor1 &= ~COR1_IGNORE;
1089 }
1090 /* Set marking of some errors */
1091 port->mark_mask = RCSR_OE | RCSR_TOUT;
1092 if (I_INPCK(tty))
1093 port->mark_mask |= RCSR_FE | RCSR_PE;
1094 if (I_BRKINT(tty) || I_PARMRK(tty))
1095 port->mark_mask |= RCSR_BREAK;
1096 if (I_IGNPAR(tty))
1097 port->mark_mask &= ~(RCSR_FE | RCSR_PE);
1098 if (I_IGNBRK(tty)) {
1099 port->mark_mask &= ~RCSR_BREAK;
1100 if (I_IGNPAR(tty))
1101 /* Real raw mode. Ignore all */
1102 port->mark_mask &= ~RCSR_OE;
1103 }
1104 /* Enable Hardware Flow Control */
1105 if (C_CRTSCTS(tty)) {
1106/*#ifdef AURORA_BRAIN_DAMAGED_CTS
1107 port->SRER |= SRER_DSR | SRER_CTS;
1108 mcor1 |= MCOR1_DSRZD | MCOR1_CTSZD;
1109 mcor2 |= MCOR2_DSROD | MCOR2_CTSOD;
1110 tty->hw_stopped = !(aurora_in(bp, CD180_MSVR) & (MSVR_CTS|MSVR_DSR));
1111#else*/
1112 port->COR2 |= COR2_CTSAE;
1113/*#endif*/
1114 if (bp->flags&AURORA_BOARD_DTR_FLOW_OK) {
1115 mcor1 |= AURORA_RXTH;
1116 }
1117 }
1118 /* Enable Software Flow Control. FIXME: I'm not sure about this */
1119 /* Some people reported that it works, but I still doubt */
1120 if (I_IXON(tty)) {
1121 port->COR2 |= COR2_TXIBE;
1122 cor3 |= (COR3_FCT | COR3_SCDE);
1123 if (I_IXANY(tty))
1124 port->COR2 |= COR2_IXM;
1125 sbus_writeb(START_CHAR(tty),
1126 &bp->r[chip]->r[CD180_SCHR1]);
1127 sbus_writeb(STOP_CHAR(tty),
1128 &bp->r[chip]->r[CD180_SCHR2]);
1129 sbus_writeb(START_CHAR(tty),
1130 &bp->r[chip]->r[CD180_SCHR3]);
1131 sbus_writeb(STOP_CHAR(tty),
1132 &bp->r[chip]->r[CD180_SCHR4]);
1133 }
1134 if (!C_CLOCAL(tty)) {
1135 /* Enable CD check */
1136 port->SRER |= SRER_CD;
1137 mcor1 |= MCOR1_CDZD;
1138 mcor2 |= MCOR2_CDOD;
1139 }
1140
1141 if (C_CREAD(tty))
1142 /* Enable receiver */
1143 port->SRER |= SRER_RXD;
1144
1145 /* Set input FIFO size (1-8 bytes) */
1146 cor3 |= AURORA_RXFIFO;
1147 /* Setting up CD180 channel registers */
1148 sbus_writeb(cor1, &bp->r[chip]->r[CD180_COR1]);
1149 sbus_writeb(port->COR2, &bp->r[chip]->r[CD180_COR2]);
1150 sbus_writeb(cor3, &bp->r[chip]->r[CD180_COR3]);
1151 /* Make CD180 know about registers change */
1152 aurora_wait_CCR(bp->r[chip]);
1153 sbus_writeb(CCR_CORCHG1 | CCR_CORCHG2 | CCR_CORCHG3,
1154 &bp->r[chip]->r[CD180_CCR]);
1155 /* Setting up modem option registers */
1156 sbus_writeb(mcor1, &bp->r[chip]->r[CD180_MCOR1]);
1157 sbus_writeb(mcor2, &bp->r[chip]->r[CD180_MCOR2]);
1158 /* Enable CD180 transmitter & receiver */
1159 aurora_wait_CCR(bp->r[chip]);
1160 sbus_writeb(CCR_TXEN | CCR_RXEN, &bp->r[chip]->r[CD180_CCR]);
1161 /* Enable interrupts */
1162 sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
1163 /* And finally set RTS on */
1164 sbus_writeb(port->MSVR, &bp->r[chip]->r[CD180_MSVR]);
1165#ifdef AURORA_DEBUG
1166 printk("aurora_change_speed: end\n");
1167#endif
1168}
1169
1170/* Must be called with interrupts enabled */
1171static int aurora_setup_port(struct Aurora_board *bp, struct Aurora_port *port)
1172{
1173 unsigned long flags;
1174
1175#ifdef AURORA_DEBUG
1176 printk("aurora_setup_port: start %d\n",port_No(port));
1177#endif
1178 if (port->flags & ASYNC_INITIALIZED)
1179 return 0;
1180
1181 if (!port->xmit_buf) {
1182 /* We may sleep in get_zeroed_page() */
1183 unsigned long tmp;
1184
1185 if (!(tmp = get_zeroed_page(GFP_KERNEL)))
1186 return -ENOMEM;
1187
1188 if (port->xmit_buf) {
1189 free_page(tmp);
1190 return -ERESTARTSYS;
1191 }
1192 port->xmit_buf = (unsigned char *) tmp;
1193 }
1194
1195 save_flags(flags); cli();
1196
1197 if (port->tty)
1198 clear_bit(TTY_IO_ERROR, &port->tty->flags);
1199
1200#ifdef MODULE
1201 if ((port->count == 1) && ((++bp->count) == 1))
1202 bp->flags |= AURORA_BOARD_ACTIVE;
1203#endif
1204
1205 port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
1206 aurora_change_speed(bp, port);
1207 port->flags |= ASYNC_INITIALIZED;
1208
1209 restore_flags(flags);
1210#ifdef AURORA_DEBUG
1211 printk("aurora_setup_port: end\n");
1212#endif
1213 return 0;
1214}
1215
1216/* Must be called with interrupts disabled */
1217static void aurora_shutdown_port(struct Aurora_board *bp, struct Aurora_port *port)
1218{
1219 struct tty_struct *tty;
1220 unsigned char chip;
1221
1222#ifdef AURORA_DEBUG
1223 printk("aurora_shutdown_port: start\n");
1224#endif
1225 if (!(port->flags & ASYNC_INITIALIZED))
1226 return;
1227
1228 chip = AURORA_CD180(port_No(port));
1229
1230#ifdef AURORA_REPORT_OVERRUN
1231 printk("aurora%d: port %d: Total %ld overruns were detected.\n",
1232 board_No(bp), port_No(port), port->overrun);
1233#endif
1234#ifdef AURORA_REPORT_FIFO
1235 {
1236 int i;
1237
1238 printk("aurora%d: port %d: FIFO hits [ ",
1239 board_No(bp), port_No(port));
1240 for (i = 0; i < 10; i++) {
1241 printk("%ld ", port->hits[i]);
1242 }
1243 printk("].\n");
1244 }
1245#endif
1246 if (port->xmit_buf) {
1247 free_page((unsigned long) port->xmit_buf);
1248 port->xmit_buf = NULL;
1249 }
1250
1251 if (!(tty = port->tty) || C_HUPCL(tty)) {
1252 /* Drop DTR */
1253 port->MSVR &= ~(bp->DTR|bp->RTS);
1254 sbus_writeb(port->MSVR,
1255 &bp->r[chip]->r[CD180_MSVR]);
1256 }
1257
1258 /* Select port */
1259 sbus_writeb(port_No(port) & 7,
1260 &bp->r[chip]->r[CD180_CAR]);
1261 udelay(1);
1262
1263 /* Reset port */
1264 aurora_wait_CCR(bp->r[chip]);
1265 sbus_writeb(CCR_SOFTRESET, &bp->r[chip]->r[CD180_CCR]);
1266
1267 /* Disable all interrupts from this port */
1268 port->SRER = 0;
1269 sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
1270
1271 if (tty)
1272 set_bit(TTY_IO_ERROR, &tty->flags);
1273 port->flags &= ~ASYNC_INITIALIZED;
1274
1275#ifdef MODULE
1276 if (--bp->count < 0) {
1277 printk(KERN_DEBUG "aurora%d: aurora_shutdown_port: "
1278 "bad board count: %d\n",
1279 board_No(bp), bp->count);
1280 bp->count = 0;
1281 }
1282
1283 if (!bp->count)
1284 bp->flags &= ~AURORA_BOARD_ACTIVE;
1285#endif
1286
1287#ifdef AURORA_DEBUG
1288 printk("aurora_shutdown_port: end\n");
1289#endif
1290}
1291
1292
1293static int block_til_ready(struct tty_struct *tty, struct file * filp,
1294 struct Aurora_port *port)
1295{
1296 DECLARE_WAITQUEUE(wait, current);
1297 struct Aurora_board *bp = port_Board(port);
1298 int retval;
1299 int do_clocal = 0;
1300 int CD;
1301 unsigned char chip;
1302
1303#ifdef AURORA_DEBUG
1304 printk("block_til_ready: start\n");
1305#endif
1306 chip = AURORA_CD180(port_No(port));
1307
1308 /* If the device is in the middle of being closed, then block
1309 * until it's done, and then try again.
1310 */
1311 if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
1312 interruptible_sleep_on(&port->close_wait);
1313 if (port->flags & ASYNC_HUP_NOTIFY)
1314 return -EAGAIN;
1315 else
1316 return -ERESTARTSYS;
1317 }
1318
1319 /* If non-blocking mode is set, or the port is not enabled,
1320 * then make the check up front and then exit.
1321 */
1322 if ((filp->f_flags & O_NONBLOCK) ||
1323 (tty->flags & (1 << TTY_IO_ERROR))) {
1324 port->flags |= ASYNC_NORMAL_ACTIVE;
1325 return 0;
1326 }
1327
1328 if (C_CLOCAL(tty))
1329 do_clocal = 1;
1330
1331 /* Block waiting for the carrier detect and the line to become
1332 * free (i.e., not in use by the callout). While we are in
1333 * this loop, info->count is dropped by one, so that
1334 * rs_close() knows when to free things. We restore it upon
1335 * exit, either normal or abnormal.
1336 */
1337 retval = 0;
1338 add_wait_queue(&port->open_wait, &wait);
1339 cli();
1340 if (!tty_hung_up_p(filp))
1341 port->count--;
1342 sti();
1343 port->blocked_open++;
1344 while (1) {
1345 cli();
1346 sbus_writeb(port_No(port) & 7,
1347 &bp->r[chip]->r[CD180_CAR]);
1348 udelay(1);
1349 CD = sbus_readb(&bp->r[chip]->r[CD180_MSVR]) & MSVR_CD;
1350 port->MSVR=bp->RTS;
1351
1352 /* auto drops DTR */
1353 sbus_writeb(port->MSVR, &bp->r[chip]->r[CD180_MSVR]);
1354 sti();
1355 set_current_state(TASK_INTERRUPTIBLE);
1356 if (tty_hung_up_p(filp) ||
1357 !(port->flags & ASYNC_INITIALIZED)) {
1358 if (port->flags & ASYNC_HUP_NOTIFY)
1359 retval = -EAGAIN;
1360 else
1361 retval = -ERESTARTSYS;
1362 break;
1363 }
1364 if (!(port->flags & ASYNC_CLOSING) &&
1365 (do_clocal || CD))
1366 break;
1367 if (signal_pending(current)) {
1368 retval = -ERESTARTSYS;
1369 break;
1370 }
1371 schedule();
1372 }
1373 current->state = TASK_RUNNING;
1374 remove_wait_queue(&port->open_wait, &wait);
1375 if (!tty_hung_up_p(filp))
1376 port->count++;
1377 port->blocked_open--;
1378 if (retval)
1379 return retval;
1380
1381 port->flags |= ASYNC_NORMAL_ACTIVE;
1382#ifdef AURORA_DEBUG
1383 printk("block_til_ready: end\n");
1384#endif
1385 return 0;
1386}
1387
1388static int aurora_open(struct tty_struct * tty, struct file * filp)
1389{
1390 int board;
1391 int error;
1392 struct Aurora_port * port;
1393 struct Aurora_board * bp;
1394 unsigned long flags;
1395
1396#ifdef AURORA_DEBUG
1397 printk("aurora_open: start\n");
1398#endif
1399
1400 board = AURORA_BOARD(tty->index);
1401 if (board > AURORA_NBOARD ||
1402 !(aurora_board[board].flags & AURORA_BOARD_PRESENT)) {
1403#ifdef AURORA_DEBUG
1404 printk("aurora_open: error board %d present %d\n",
1405 board, aurora_board[board].flags & AURORA_BOARD_PRESENT);
1406#endif
1407 return -ENODEV;
1408 }
1409
1410 bp = &aurora_board[board];
1411 port = aurora_port + board * AURORA_NPORT * AURORA_NCD180 + AURORA_PORT(tty->index);
1412 if ((aurora_paranoia_check(port, tty->name, "aurora_open")) {
1413#ifdef AURORA_DEBUG
1414 printk("aurora_open: error paranoia check\n");
1415#endif
1416 return -ENODEV;
1417 }
1418
1419 port->count++;
1420 tty->driver_data = port;
1421 port->tty = tty;
1422
1423 if ((error = aurora_setup_port(bp, port))) {
1424#ifdef AURORA_DEBUG
1425 printk("aurora_open: error aurora_setup_port ret %d\n",error);
1426#endif
1427 return error;
1428 }
1429
1430 if ((error = block_til_ready(tty, filp, port))) {
1431#ifdef AURORA_DEBUG
1432 printk("aurora_open: error block_til_ready ret %d\n",error);
1433#endif
1434 return error;
1435 }
1436
1437#ifdef AURORA_DEBUG
1438 printk("aurora_open: end\n");
1439#endif
1440 return 0;
1441}
1442
1443static void aurora_close(struct tty_struct * tty, struct file * filp)
1444{
1445 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
1446 struct Aurora_board *bp;
1447 unsigned long flags;
1448 unsigned long timeout;
1449 unsigned char chip;
1450
1451#ifdef AURORA_DEBUG
1452 printk("aurora_close: start\n");
1453#endif
1454
1455 if (!port || (aurora_paranoia_check(port, tty->name, "close"))
1456 return;
1457
1458 chip = AURORA_CD180(port_No(port));
1459
1460 save_flags(flags); cli();
1461 if (tty_hung_up_p(filp)) {
1462 restore_flags(flags);
1463 return;
1464 }
1465
1466 bp = port_Board(port);
1467 if ((tty->count == 1) && (port->count != 1)) {
1468 printk(KERN_DEBUG "aurora%d: aurora_close: bad port count; "
1469 "tty->count is 1, port count is %d\n",
1470 board_No(bp), port->count);
1471 port->count = 1;
1472 }
1473 if (--port->count < 0) {
1474 printk(KERN_DEBUG "aurora%d: aurora_close: bad port "
1475 "count for tty%d: %d\n",
1476 board_No(bp), port_No(port), port->count);
1477 port->count = 0;
1478 }
1479 if (port->count) {
1480 restore_flags(flags);
1481 return;
1482 }
1483 port->flags |= ASYNC_CLOSING;
1484
1485 /* Now we wait for the transmit buffer to clear; and we notify
1486 * the line discipline to only process XON/XOFF characters.
1487 */
1488 tty->closing = 1;
1489 if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE){
1490#ifdef AURORA_DEBUG
1491 printk("aurora_close: waiting to flush...\n");
1492#endif
1493 tty_wait_until_sent(tty, port->closing_wait);
1494 }
1495
1496 /* At this point we stop accepting input. To do this, we
1497 * disable the receive line status interrupts, and tell the
1498 * interrupt driver to stop checking the data ready bit in the
1499 * line status register.
1500 */
1501 port->SRER &= ~SRER_RXD;
1502 if (port->flags & ASYNC_INITIALIZED) {
1503 port->SRER &= ~SRER_TXRDY;
1504 port->SRER |= SRER_TXEMPTY;
1505 sbus_writeb(port_No(port) & 7,
1506 &bp->r[chip]->r[CD180_CAR]);
1507 udelay(1);
1508 sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
1509 /*
1510 * Before we drop DTR, make sure the UART transmitter
1511 * has completely drained; this is especially
1512 * important if there is a transmit FIFO!
1513 */
1514 timeout = jiffies+HZ;
1515 while(port->SRER & SRER_TXEMPTY) {
1516 msleep_interruptible(jiffies_to_msecs(port->timeout));
1517 if (time_after(jiffies, timeout))
1518 break;
1519 }
1520 }
1521#ifdef AURORA_DEBUG
1522 printk("aurora_close: shutdown_port\n");
1523#endif
1524 aurora_shutdown_port(bp, port);
1525 if (tty->driver->flush_buffer)
1526 tty->driver->flush_buffer(tty);
1527 tty_ldisc_flush(tty);
1528 tty->closing = 0;
1529 port->event = 0;
1530 port->tty = 0;
1531 if (port->blocked_open) {
1532 if (port->close_delay) {
1533 msleep_interruptible(jiffies_to_msecs(port->close_delay));
1534 }
1535 wake_up_interruptible(&port->open_wait);
1536 }
1537 port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
1538 wake_up_interruptible(&port->close_wait);
1539 restore_flags(flags);
1540#ifdef AURORA_DEBUG
1541 printk("aurora_close: end\n");
1542#endif
1543}
1544
1545static int aurora_write(struct tty_struct * tty,
1546 const unsigned char *buf, int count)
1547{
1548 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
1549 struct Aurora_board *bp;
1550 int c, total = 0;
1551 unsigned long flags;
1552 unsigned char chip;
1553
1554#ifdef AURORA_DEBUG
1555 printk("aurora_write: start %d\n",count);
1556#endif
1557 if ((aurora_paranoia_check(port, tty->name, "aurora_write"))
1558 return 0;
1559
1560 chip = AURORA_CD180(port_No(port));
1561
1562 bp = port_Board(port);
1563
1564 if (!tty || !port->xmit_buf || !tmp_buf)
1565 return 0;
1566
1567 save_flags(flags);
1568 while (1) {
1569 cli();
1570 c = min(count, min(SERIAL_XMIT_SIZE - port->xmit_cnt - 1,
1571 SERIAL_XMIT_SIZE - port->xmit_head));
1572 if (c <= 0) {
1573 restore_flags(flags);
1574 break;
1575 }
1576 memcpy(port->xmit_buf + port->xmit_head, buf, c);
1577 port->xmit_head = (port->xmit_head + c) & (SERIAL_XMIT_SIZE-1);
1578 port->xmit_cnt += c;
1579 restore_flags(flags);
1580
1581 buf += c;
1582 count -= c;
1583 total += c;
1584 }
1585
1586 cli();
1587 if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped &&
1588 !(port->SRER & SRER_TXRDY)) {
1589 port->SRER |= SRER_TXRDY;
1590 sbus_writeb(port_No(port) & 7,
1591 &bp->r[chip]->r[CD180_CAR]);
1592 udelay(1);
1593 sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
1594 }
1595 restore_flags(flags);
1596#ifdef AURORA_DEBUG
1597 printk("aurora_write: end %d\n",total);
1598#endif
1599 return total;
1600}
1601
1602static void aurora_put_char(struct tty_struct * tty, unsigned char ch)
1603{
1604 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
1605 unsigned long flags;
1606
1607#ifdef AURORA_DEBUG
1608 printk("aurora_put_char: start %c\n",ch);
1609#endif
1610 if ((aurora_paranoia_check(port, tty->name, "aurora_put_char"))
1611 return;
1612
1613 if (!tty || !port->xmit_buf)
1614 return;
1615
1616 save_flags(flags); cli();
1617
1618 if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) {
1619 restore_flags(flags);
1620 return;
1621 }
1622
1623 port->xmit_buf[port->xmit_head++] = ch;
1624 port->xmit_head &= SERIAL_XMIT_SIZE - 1;
1625 port->xmit_cnt++;
1626 restore_flags(flags);
1627#ifdef AURORA_DEBUG
1628 printk("aurora_put_char: end\n");
1629#endif
1630}
1631
1632static void aurora_flush_chars(struct tty_struct * tty)
1633{
1634 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
1635 unsigned long flags;
1636 unsigned char chip;
1637
1638/*#ifdef AURORA_DEBUG
1639 printk("aurora_flush_chars: start\n");
1640#endif*/
1641 if ((aurora_paranoia_check(port, tty->name, "aurora_flush_chars"))
1642 return;
1643
1644 chip = AURORA_CD180(port_No(port));
1645
1646 if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
1647 !port->xmit_buf)
1648 return;
1649
1650 save_flags(flags); cli();
1651 port->SRER |= SRER_TXRDY;
1652 sbus_writeb(port_No(port) & 7,
1653 &port_Board(port)->r[chip]->r[CD180_CAR]);
1654 udelay(1);
1655 sbus_writeb(port->SRER,
1656 &port_Board(port)->r[chip]->r[CD180_SRER]);
1657 restore_flags(flags);
1658/*#ifdef AURORA_DEBUG
1659 printk("aurora_flush_chars: end\n");
1660#endif*/
1661}
1662
1663static int aurora_write_room(struct tty_struct * tty)
1664{
1665 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
1666 int ret;
1667
1668#ifdef AURORA_DEBUG
1669 printk("aurora_write_room: start\n");
1670#endif
1671 if ((aurora_paranoia_check(port, tty->name, "aurora_write_room"))
1672 return 0;
1673
1674 ret = SERIAL_XMIT_SIZE - port->xmit_cnt - 1;
1675 if (ret < 0)
1676 ret = 0;
1677#ifdef AURORA_DEBUG
1678 printk("aurora_write_room: end\n");
1679#endif
1680 return ret;
1681}
1682
1683static int aurora_chars_in_buffer(struct tty_struct *tty)
1684{
1685 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
1686
1687 if ((aurora_paranoia_check(port, tty->name, "aurora_chars_in_buffer"))
1688 return 0;
1689
1690 return port->xmit_cnt;
1691}
1692
1693static void aurora_flush_buffer(struct tty_struct *tty)
1694{
1695 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
1696 unsigned long flags;
1697
1698#ifdef AURORA_DEBUG
1699 printk("aurora_flush_buffer: start\n");
1700#endif
1701 if ((aurora_paranoia_check(port, tty->name, "aurora_flush_buffer"))
1702 return;
1703
1704 save_flags(flags); cli();
1705 port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
1706 restore_flags(flags);
1707
1708 tty_wakeup(tty);
1709#ifdef AURORA_DEBUG
1710 printk("aurora_flush_buffer: end\n");
1711#endif
1712}
1713
1714static int aurora_tiocmget(struct tty_struct *tty, struct file *file)
1715{
1716 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
1717 struct Aurora_board * bp;
1718 unsigned char status,chip;
1719 unsigned int result;
1720 unsigned long flags;
1721
1722#ifdef AURORA_DEBUG
1723 printk("aurora_get_modem_info: start\n");
1724#endif
1725 if ((aurora_paranoia_check(port, tty->name, __FUNCTION__))
1726 return -ENODEV;
1727
1728 chip = AURORA_CD180(port_No(port));
1729
1730 bp = port_Board(port);
1731
1732 save_flags(flags); cli();
1733
1734 sbus_writeb(port_No(port) & 7, &bp->r[chip]->r[CD180_CAR]);
1735 udelay(1);
1736
1737 status = sbus_readb(&bp->r[chip]->r[CD180_MSVR]);
1738 result = 0/*bp->r[chip]->r[AURORA_RI] & (1u << port_No(port)) ? 0 : TIOCM_RNG*/;
1739
1740 restore_flags(flags);
1741
1742 result |= ((status & bp->RTS) ? TIOCM_RTS : 0)
1743 | ((status & bp->DTR) ? TIOCM_DTR : 0)
1744 | ((status & MSVR_CD) ? TIOCM_CAR : 0)
1745 | ((status & MSVR_DSR) ? TIOCM_DSR : 0)
1746 | ((status & MSVR_CTS) ? TIOCM_CTS : 0);
1747
1748#ifdef AURORA_DEBUG
1749 printk("aurora_get_modem_info: end\n");
1750#endif
1751 return result;
1752}
1753
1754static int aurora_tiocmset(struct tty_struct *tty, struct file *file,
1755 unsigned int set, unsigned int clear)
1756{
1757 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
1758 unsigned int arg;
1759 unsigned long flags;
1760 struct Aurora_board *bp = port_Board(port);
1761 unsigned char chip;
1762
1763#ifdef AURORA_DEBUG
1764 printk("aurora_set_modem_info: start\n");
1765#endif
1766 if ((aurora_paranoia_check(port, tty->name, __FUNCTION__))
1767 return -ENODEV;
1768
1769 chip = AURORA_CD180(port_No(port));
1770
1771 save_flags(flags); cli();
1772 if (set & TIOCM_RTS)
1773 port->MSVR |= bp->RTS;
1774 if (set & TIOCM_DTR)
1775 port->MSVR |= bp->DTR;
1776 if (clear & TIOCM_RTS)
1777 port->MSVR &= ~bp->RTS;
1778 if (clear & TIOCM_DTR)
1779 port->MSVR &= ~bp->DTR;
1780
1781 sbus_writeb(port_No(port) & 7, &bp->r[chip]->r[CD180_CAR]);
1782 udelay(1);
1783
1784 sbus_writeb(port->MSVR, &bp->r[chip]->r[CD180_MSVR]);
1785
1786 restore_flags(flags);
1787#ifdef AURORA_DEBUG
1788 printk("aurora_set_modem_info: end\n");
1789#endif
1790 return 0;
1791}
1792
1793static void aurora_send_break(struct Aurora_port * port, unsigned long length)
1794{
1795 struct Aurora_board *bp = port_Board(port);
1796 unsigned long flags;
1797 unsigned char chip;
1798
1799#ifdef AURORA_DEBUG
1800 printk("aurora_send_break: start\n");
1801#endif
1802 chip = AURORA_CD180(port_No(port));
1803
1804 save_flags(flags); cli();
1805
1806 port->break_length = AURORA_TPS / HZ * length;
1807 port->COR2 |= COR2_ETC;
1808 port->SRER |= SRER_TXRDY;
1809 sbus_writeb(port_No(port) & 7, &bp->r[chip]->r[CD180_CAR]);
1810 udelay(1);
1811
1812 sbus_writeb(port->COR2, &bp->r[chip]->r[CD180_COR2]);
1813 sbus_writeb(port->SRER, &bp->r[chip]->r[CD180_SRER]);
1814 aurora_wait_CCR(bp->r[chip]);
1815
1816 sbus_writeb(CCR_CORCHG2, &bp->r[chip]->r[CD180_CCR]);
1817 aurora_wait_CCR(bp->r[chip]);
1818
1819 restore_flags(flags);
1820#ifdef AURORA_DEBUG
1821 printk("aurora_send_break: end\n");
1822#endif
1823}
1824
1825static int aurora_set_serial_info(struct Aurora_port * port,
1826 struct serial_struct * newinfo)
1827{
1828 struct serial_struct tmp;
1829 struct Aurora_board *bp = port_Board(port);
1830 int change_speed;
1831 unsigned long flags;
1832
1833#ifdef AURORA_DEBUG
1834 printk("aurora_set_serial_info: start\n");
1835#endif
1836 if (copy_from_user(&tmp, newinfo, sizeof(tmp)))
1837 return -EFAULT;
1838#if 0
1839 if ((tmp.irq != bp->irq) ||
1840 (tmp.port != bp->base) ||
1841 (tmp.type != PORT_CIRRUS) ||
1842 (tmp.baud_base != (bp->oscfreq + CD180_TPC/2) / CD180_TPC) ||
1843 (tmp.custom_divisor != 0) ||
1844 (tmp.xmit_fifo_size != CD180_NFIFO) ||
1845 (tmp.flags & ~AURORA_LEGAL_FLAGS))
1846 return -EINVAL;
1847#endif
1848
1849 change_speed = ((port->flags & ASYNC_SPD_MASK) !=
1850 (tmp.flags & ASYNC_SPD_MASK));
1851
1852 if (!capable(CAP_SYS_ADMIN)) {
1853 if ((tmp.close_delay != port->close_delay) ||
1854 (tmp.closing_wait != port->closing_wait) ||
1855 ((tmp.flags & ~ASYNC_USR_MASK) !=
1856 (port->flags & ~ASYNC_USR_MASK)))
1857 return -EPERM;
1858 port->flags = ((port->flags & ~ASYNC_USR_MASK) |
1859 (tmp.flags & ASYNC_USR_MASK));
1860 } else {
1861 port->flags = ((port->flags & ~ASYNC_FLAGS) |
1862 (tmp.flags & ASYNC_FLAGS));
1863 port->close_delay = tmp.close_delay;
1864 port->closing_wait = tmp.closing_wait;
1865 }
1866 if (change_speed) {
1867 save_flags(flags); cli();
1868 aurora_change_speed(bp, port);
1869 restore_flags(flags);
1870 }
1871#ifdef AURORA_DEBUG
1872 printk("aurora_set_serial_info: end\n");
1873#endif
1874 return 0;
1875}
1876
1877extern int aurora_get_serial_info(struct Aurora_port * port,
1878 struct serial_struct * retinfo)
1879{
1880 struct serial_struct tmp;
1881 struct Aurora_board *bp = port_Board(port);
1882
1883#ifdef AURORA_DEBUG
1884 printk("aurora_get_serial_info: start\n");
1885#endif
1886 if (!access_ok(VERIFY_WRITE, (void *) retinfo, sizeof(tmp)))
1887 return -EFAULT;
1888
1889 memset(&tmp, 0, sizeof(tmp));
1890 tmp.type = PORT_CIRRUS;
1891 tmp.line = port - aurora_port;
1892 tmp.port = 0;
1893 tmp.irq = bp->irq;
1894 tmp.flags = port->flags;
1895 tmp.baud_base = (bp->oscfreq + CD180_TPC/2) / CD180_TPC;
1896 tmp.close_delay = port->close_delay * HZ/100;
1897 tmp.closing_wait = port->closing_wait * HZ/100;
1898 tmp.xmit_fifo_size = CD180_NFIFO;
1899 copy_to_user(retinfo, &tmp, sizeof(tmp));
1900#ifdef AURORA_DEBUG
1901printk("aurora_get_serial_info: end\n");
1902#endif
1903 return 0;
1904}
1905
1906static int aurora_ioctl(struct tty_struct * tty, struct file * filp,
1907 unsigned int cmd, unsigned long arg)
1908
1909{
1910 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
1911 int retval;
1912
1913#ifdef AURORA_DEBUG
1914 printk("aurora_ioctl: start\n");
1915#endif
1916 if ((aurora_paranoia_check(port, tty->name, "aurora_ioctl"))
1917 return -ENODEV;
1918
1919 switch (cmd) {
1920 case TCSBRK: /* SVID version: non-zero arg --> no break */
1921 retval = tty_check_change(tty);
1922 if (retval)
1923 return retval;
1924 tty_wait_until_sent(tty, 0);
1925 if (!arg)
1926 aurora_send_break(port, HZ/4); /* 1/4 second */
1927 return 0;
1928 case TCSBRKP: /* support for POSIX tcsendbreak() */
1929 retval = tty_check_change(tty);
1930 if (retval)
1931 return retval;
1932 tty_wait_until_sent(tty, 0);
1933 aurora_send_break(port, arg ? arg*(HZ/10) : HZ/4);
1934 return 0;
1935 case TIOCGSOFTCAR:
1936 return put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long *)arg);
1937 case TIOCSSOFTCAR:
1938 if (get_user(arg,(unsigned long *)arg))
1939 return -EFAULT;
1940 tty->termios->c_cflag =
1941 ((tty->termios->c_cflag & ~CLOCAL) |
1942 (arg ? CLOCAL : 0));
1943 return 0;
1944 case TIOCGSERIAL:
1945 return aurora_get_serial_info(port, (struct serial_struct *) arg);
1946 case TIOCSSERIAL:
1947 return aurora_set_serial_info(port, (struct serial_struct *) arg);
1948 default:
1949 return -ENOIOCTLCMD;
1950 };
1951#ifdef AURORA_DEBUG
1952 printk("aurora_ioctl: end\n");
1953#endif
1954 return 0;
1955}
1956
1957static void aurora_throttle(struct tty_struct * tty)
1958{
1959 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
1960 struct Aurora_board *bp;
1961 unsigned long flags;
1962 unsigned char chip;
1963
1964#ifdef AURORA_DEBUG
1965 printk("aurora_throttle: start\n");
1966#endif
1967 if ((aurora_paranoia_check(port, tty->name, "aurora_throttle"))
1968 return;
1969
1970 bp = port_Board(port);
1971 chip = AURORA_CD180(port_No(port));
1972
1973 save_flags(flags); cli();
1974 port->MSVR &= ~bp->RTS;
1975 sbus_writeb(port_No(port) & 7, &bp->r[chip]->r[CD180_CAR]);
1976 udelay(1);
1977 if (I_IXOFF(tty)) {
1978 aurora_wait_CCR(bp->r[chip]);
1979 sbus_writeb(CCR_SSCH2, &bp->r[chip]->r[CD180_CCR]);
1980 aurora_wait_CCR(bp->r[chip]);
1981 }
1982 sbus_writeb(port->MSVR, &bp->r[chip]->r[CD180_MSVR]);
1983 restore_flags(flags);
1984#ifdef AURORA_DEBUG
1985 printk("aurora_throttle: end\n");
1986#endif
1987}
1988
1989static void aurora_unthrottle(struct tty_struct * tty)
1990{
1991 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
1992 struct Aurora_board *bp;
1993 unsigned long flags;
1994 unsigned char chip;
1995
1996#ifdef AURORA_DEBUG
1997 printk("aurora_unthrottle: start\n");
1998#endif
1999 if ((aurora_paranoia_check(port, tty->name, "aurora_unthrottle"))
2000 return;
2001
2002 bp = port_Board(port);
2003
2004 chip = AURORA_CD180(port_No(port));
2005
2006 save_flags(flags); cli();
2007 port->MSVR |= bp->RTS;
2008 sbus_writeb(port_No(port) & 7,
2009 &bp->r[chip]->r[CD180_CAR]);
2010 udelay(1);
2011 if (I_IXOFF(tty)) {
2012 aurora_wait_CCR(bp->r[chip]);
2013 sbus_writeb(CCR_SSCH1,
2014 &bp->r[chip]->r[CD180_CCR]);
2015 aurora_wait_CCR(bp->r[chip]);
2016 }
2017 sbus_writeb(port->MSVR, &bp->r[chip]->r[CD180_MSVR]);
2018 restore_flags(flags);
2019#ifdef AURORA_DEBUG
2020 printk("aurora_unthrottle: end\n");
2021#endif
2022}
2023
2024static void aurora_stop(struct tty_struct * tty)
2025{
2026 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
2027 struct Aurora_board *bp;
2028 unsigned long flags;
2029 unsigned char chip;
2030
2031#ifdef AURORA_DEBUG
2032 printk("aurora_stop: start\n");
2033#endif
2034 if ((aurora_paranoia_check(port, tty->name, "aurora_stop"))
2035 return;
2036
2037 bp = port_Board(port);
2038
2039 chip = AURORA_CD180(port_No(port));
2040
2041 save_flags(flags); cli();
2042 port->SRER &= ~SRER_TXRDY;
2043 sbus_writeb(port_No(port) & 7,
2044 &bp->r[chip]->r[CD180_CAR]);
2045 udelay(1);
2046 sbus_writeb(port->SRER,
2047 &bp->r[chip]->r[CD180_SRER]);
2048 restore_flags(flags);
2049#ifdef AURORA_DEBUG
2050 printk("aurora_stop: end\n");
2051#endif
2052}
2053
2054static void aurora_start(struct tty_struct * tty)
2055{
2056 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
2057 struct Aurora_board *bp;
2058 unsigned long flags;
2059 unsigned char chip;
2060
2061#ifdef AURORA_DEBUG
2062 printk("aurora_start: start\n");
2063#endif
2064 if ((aurora_paranoia_check(port, tty->name, "aurora_start"))
2065 return;
2066
2067 bp = port_Board(port);
2068
2069 chip = AURORA_CD180(port_No(port));
2070
2071 save_flags(flags); cli();
2072 if (port->xmit_cnt && port->xmit_buf && !(port->SRER & SRER_TXRDY)) {
2073 port->SRER |= SRER_TXRDY;
2074 sbus_writeb(port_No(port) & 7,
2075 &bp->r[chip]->r[CD180_CAR]);
2076 udelay(1);
2077 sbus_writeb(port->SRER,
2078 &bp->r[chip]->r[CD180_SRER]);
2079 }
2080 restore_flags(flags);
2081#ifdef AURORA_DEBUG
2082 printk("aurora_start: end\n");
2083#endif
2084}
2085
2086/*
2087 * This routine is called from the scheduler tqueue when the interrupt
2088 * routine has signalled that a hangup has occurred. The path of
2089 * hangup processing is:
2090 *
2091 * serial interrupt routine -> (scheduler tqueue) ->
2092 * do_aurora_hangup() -> tty->hangup() -> aurora_hangup()
2093 *
2094 */
2095static void do_aurora_hangup(void *private_)
2096{
2097 struct Aurora_port *port = (struct Aurora_port *) private_;
2098 struct tty_struct *tty;
2099
2100#ifdef AURORA_DEBUG
2101 printk("do_aurora_hangup: start\n");
2102#endif
2103 tty = port->tty;
2104 if (tty != NULL) {
2105 tty_hangup(tty); /* FIXME: module removal race - AKPM */
2106#ifdef AURORA_DEBUG
2107 printk("do_aurora_hangup: end\n");
2108#endif
2109 }
2110}
2111
2112static void aurora_hangup(struct tty_struct * tty)
2113{
2114 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
2115 struct Aurora_board *bp;
2116
2117#ifdef AURORA_DEBUG
2118 printk("aurora_hangup: start\n");
2119#endif
2120 if ((aurora_paranoia_check(port, tty->name, "aurora_hangup"))
2121 return;
2122
2123 bp = port_Board(port);
2124
2125 aurora_shutdown_port(bp, port);
2126 port->event = 0;
2127 port->count = 0;
2128 port->flags &= ~ASYNC_NORMAL_ACTIVE;
2129 port->tty = 0;
2130 wake_up_interruptible(&port->open_wait);
2131#ifdef AURORA_DEBUG
2132 printk("aurora_hangup: end\n");
2133#endif
2134}
2135
2136static void aurora_set_termios(struct tty_struct * tty, struct termios * old_termios)
2137{
2138 struct Aurora_port *port = (struct Aurora_port *) tty->driver_data;
2139 unsigned long flags;
2140
2141#ifdef AURORA_DEBUG
2142 printk("aurora_set_termios: start\n");
2143#endif
2144 if ((aurora_paranoia_check(port, tty->name, "aurora_set_termios"))
2145 return;
2146
2147 if (tty->termios->c_cflag == old_termios->c_cflag &&
2148 tty->termios->c_iflag == old_termios->c_iflag)
2149 return;
2150
2151 save_flags(flags); cli();
2152 aurora_change_speed(port_Board(port), port);
2153 restore_flags(flags);
2154
2155 if ((old_termios->c_cflag & CRTSCTS) &&
2156 !(tty->termios->c_cflag & CRTSCTS)) {
2157 tty->hw_stopped = 0;
2158 aurora_start(tty);
2159 }
2160#ifdef AURORA_DEBUG
2161 printk("aurora_set_termios: end\n");
2162#endif
2163}
2164
2165static void do_aurora_bh(void)
2166{
2167 run_task_queue(&tq_aurora);
2168}
2169
2170static void do_softint(void *private_)
2171{
2172 struct Aurora_port *port = (struct Aurora_port *) private_;
2173 struct tty_struct *tty;
2174
2175#ifdef AURORA_DEBUG
2176 printk("do_softint: start\n");
2177#endif
2178 tty = port->tty;
2179 if (tty == NULL)
2180 return;
2181
2182 if (test_and_clear_bit(RS_EVENT_WRITE_WAKEUP, &port->event)) {
2183 tty_wakeup(tty);
2184 }
2185#ifdef AURORA_DEBUG
2186 printk("do_softint: end\n");
2187#endif
2188}
2189
2190static const struct tty_operations aurora_ops = {
2191 .open = aurora_open,
2192 .close = aurora_close,
2193 .write = aurora_write,
2194 .put_char = aurora_put_char,
2195 .flush_chars = aurora_flush_chars,
2196 .write_room = aurora_write_room,
2197 .chars_in_buffer = aurora_chars_in_buffer,
2198 .flush_buffer = aurora_flush_buffer,
2199 .ioctl = aurora_ioctl,
2200 .throttle = aurora_throttle,
2201 .unthrottle = aurora_unthrottle,
2202 .set_termios = aurora_set_termios,
2203 .stop = aurora_stop,
2204 .start = aurora_start,
2205 .hangup = aurora_hangup,
2206 .tiocmget = aurora_tiocmget,
2207 .tiocmset = aurora_tiocmset,
2208};
2209
2210static int aurora_init_drivers(void)
2211{
2212 int error;
2213 int i;
2214
2215#ifdef AURORA_DEBUG
2216 printk("aurora_init_drivers: start\n");
2217#endif
2218 tmp_buf = (unsigned char *) get_zeroed_page(GFP_KERNEL);
2219 if (tmp_buf == NULL) {
2220 printk(KERN_ERR "aurora: Couldn't get free page.\n");
2221 return 1;
2222 }
2223 init_bh(AURORA_BH, do_aurora_bh);
2224 aurora_driver = alloc_tty_driver(AURORA_INPORTS);
2225 if (!aurora_driver) {
2226 printk(KERN_ERR "aurora: Couldn't allocate tty driver.\n");
2227 free_page((unsigned long) tmp_buf);
2228 return 1;
2229 }
2230 aurora_driver->owner = THIS_MODULE;
2231 aurora_driver->name = "ttyA";
2232 aurora_driver->major = AURORA_MAJOR;
2233 aurora_driver->type = TTY_DRIVER_TYPE_SERIAL;
2234 aurora_driver->subtype = SERIAL_TYPE_NORMAL;
2235 aurora_driver->init_termios = tty_std_termios;
2236 aurora_driver->init_termios.c_cflag =
2237 B9600 | CS8 | CREAD | HUPCL | CLOCAL;
2238 aurora_driver->flags = TTY_DRIVER_REAL_RAW;
2239 tty_set_operations(aurora_driver, &aurora_ops);
2240 error = tty_register_driver(aurora_driver);
2241 if (error) {
2242 put_tty_driver(aurora_driver);
2243 free_page((unsigned long) tmp_buf);
2244 printk(KERN_ERR "aurora: Couldn't register aurora driver, error = %d\n",
2245 error);
2246 return 1;
2247 }
2248
2249 memset(aurora_port, 0, sizeof(aurora_port));
2250 for (i = 0; i < AURORA_TNPORTS; i++) {
2251 aurora_port[i].magic = AURORA_MAGIC;
2252 aurora_port[i].tqueue.routine = do_softint;
2253 aurora_port[i].tqueue.data = &aurora_port[i];
2254 aurora_port[i].tqueue_hangup.routine = do_aurora_hangup;
2255 aurora_port[i].tqueue_hangup.data = &aurora_port[i];
2256 aurora_port[i].close_delay = 50 * HZ/100;
2257 aurora_port[i].closing_wait = 3000 * HZ/100;
2258 init_waitqueue_head(&aurora_port[i].open_wait);
2259 init_waitqueue_head(&aurora_port[i].close_wait);
2260 }
2261#ifdef AURORA_DEBUG
2262 printk("aurora_init_drivers: end\n");
2263#endif
2264 return 0;
2265}
2266
2267static void aurora_release_drivers(void)
2268{
2269#ifdef AURORA_DEBUG
2270 printk("aurora_release_drivers: start\n");
2271#endif
2272 free_page((unsigned long)tmp_buf);
2273 tty_unregister_driver(aurora_driver);
2274 put_tty_driver(aurora_driver);
2275#ifdef AURORA_DEBUG
2276 printk("aurora_release_drivers: end\n");
2277#endif
2278}
2279
2280/*
2281 * Called at boot time.
2282 *
2283 * You can specify IO base for up to RC_NBOARD cards,
2284 * using line "riscom8=0xiobase1,0xiobase2,.." at LILO prompt.
2285 * Note that there will be no probing at default
2286 * addresses in this case.
2287 *
2288 */
2289void __init aurora_setup(char *str, int *ints)
2290{
2291 int i;
2292
2293 for(i=0;(i<ints[0])&&(i<4);i++) {
2294 if (ints[i+1]) irqs[i]=ints[i+1];
2295 }
2296}
2297
2298static int __init aurora_real_init(void)
2299{
2300 int found;
2301 int i;
2302
2303 printk(KERN_INFO "aurora: Driver starting.\n");
2304 if(aurora_init_drivers())
2305 return -EIO;
2306 found = aurora_probe();
2307 if(!found) {
2308 aurora_release_drivers();
2309 printk(KERN_INFO "aurora: No Aurora Multiport boards detected.\n");
2310 return -EIO;
2311 } else {
2312 printk(KERN_INFO "aurora: %d boards found.\n", found);
2313 }
2314 for (i = 0; i < found; i++) {
2315 int ret = aurora_setup_board(&aurora_board[i]);
2316
2317 if (ret) {
2318#ifdef AURORA_DEBUG
2319 printk(KERN_ERR "aurora_init: error aurora_setup_board ret %d\n",
2320 ret);
2321#endif
2322 return ret;
2323 }
2324 }
2325 return 0;
2326}
2327
2328int irq = 0;
2329int irq1 = 0;
2330int irq2 = 0;
2331int irq3 = 0;
2332module_param(irq , int, 0);
2333module_param(irq1, int, 0);
2334module_param(irq2, int, 0);
2335module_param(irq3, int, 0);
2336
2337static int __init aurora_init(void)
2338{
2339 if (irq ) irqs[0]=irq ;
2340 if (irq1) irqs[1]=irq1;
2341 if (irq2) irqs[2]=irq2;
2342 if (irq3) irqs[3]=irq3;
2343 return aurora_real_init();
2344}
2345
2346static void __exit aurora_cleanup(void)
2347{
2348 int i;
2349
2350#ifdef AURORA_DEBUG
2351printk("cleanup_module: aurora_release_drivers\n");
2352#endif
2353
2354 aurora_release_drivers();
2355 for (i = 0; i < AURORA_NBOARD; i++)
2356 if (aurora_board[i].flags & AURORA_BOARD_PRESENT) {
2357 aurora_shutdown_board(&aurora_board[i]);
2358 aurora_release_io_range(&aurora_board[i]);
2359 }
2360}
2361
2362module_init(aurora_init);
2363module_exit(aurora_cleanup);
2364MODULE_LICENSE("GPL");
diff --git a/drivers/sbus/char/aurora.h b/drivers/sbus/char/aurora.h
deleted file mode 100644
index b8b5476d9860..000000000000
--- a/drivers/sbus/char/aurora.h
+++ /dev/null
@@ -1,276 +0,0 @@
1/* $Id: aurora.h,v 1.6 2001/06/05 12:23:38 davem Exp $
2 * linux/drivers/sbus/char/aurora.h -- Aurora multiport driver
3 *
4 * Copyright (c) 1999 by Oliver Aldulea (oli@bv.ro)
5 *
6 * This code is based on the RISCom/8 multiport serial driver written
7 * by Dmitry Gorodchanin (pgmdsg@ibi.com), based on the Linux serial
8 * driver, written by Linus Torvalds, Theodore T'so and others.
9 * The Aurora multiport programming info was obtained mainly from the
10 * Cirrus Logic CD180 documentation (available on the web), and by
11 * doing heavy tests on the board. Many thanks to Eddie C. Dost for the
12 * help on the sbus interface.
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 *
28 * Revision 1.0
29 *
30 * This is the first public release.
31 *
32 * This version needs a lot of feedback. This is the version that works
33 * with _my_ board. My board is model 1600se, revision '@(#)1600se.fth
34 * 1.2 3/28/95 1'. The driver might work with your board, but I do not
35 * guarantee it. If you have _any_ type of board, I need to know if the
36 * driver works or not, I need to know exactly your board parameters
37 * (get them with 'cd /proc/openprom/iommu/sbus/sio16/; ls *; cat *')
38 * Also, I need your board revision code, which is written on the board.
39 * Send me the output of my driver too (it outputs through klogd).
40 *
41 * If the driver does not work, you can try enabling the debug options
42 * to see what's wrong or what should be done.
43 *
44 * I'm sorry about the alignment of the code. It was written in a
45 * 128x48 environment.
46 *
47 * I must say that I do not like Aurora Technologies' policy. I asked
48 * them to help me do this driver faster, but they ended by something
49 * like "don't call us, we'll call you", and I never heard anything
50 * from them. They told me "knowing the way the board works, I don't
51 * doubt you and others on the net will make the driver."
52 * The truth about this board is that it has nothing intelligent on it.
53 * If you want to say to somebody what kind of board you have, say that
54 * it uses Cirrus Logic processors (CD180). The power of the board is
55 * in those two chips. The rest of the board is the interface to the
56 * sbus and to the peripherals. Still, they did something smart: they
57 * reversed DTR and RTS to make on-board automatic hardware flow
58 * control usable.
59 * Thanks to Aurora Technologies for wasting my time, nerves and money.
60 */
61
62#ifndef __LINUX_AURORA_H
63#define __LINUX_AURORA_H
64
65#include <linux/serial.h>
66#include <linux/serialP.h>
67
68#ifdef __KERNEL__
69
70/* This is the number of boards to support. I've only tested this driver with
71 * one board, so it might not work.
72 */
73#define AURORA_NBOARD 1
74
75/* Useful ? Yes. But you can safely comment the warnings if they annoy you
76 * (let me say that again: the warnings in the code, not this define).
77 */
78#define AURORA_PARANOIA_CHECK
79
80/* Well, after many lost nights, I found that the IRQ for this board is
81 * selected from four built-in values by writing some bits in the
82 * configuration register. This causes a little problem to occur: which
83 * IRQ to select ? Which one is the best for the user ? Well, I finally
84 * decided for the following algorithm: if the "bintr" value is not acceptable
85 * (not within type_1_irq[], then test the "intr" value, if that fails too,
86 * try each value from type_1_irq until succeded. Hope it's ok.
87 * You can safely reorder the irq's.
88 */
89#define TYPE_1_IRQS 4
90unsigned char type_1_irq[TYPE_1_IRQS] = {
91 3, 5, 9, 13
92};
93/* I know something about another method of interrupt setting, but not enough.
94 * Also, this is for another type of board, so I first have to learn how to
95 * detect it.
96#define TYPE_2_IRQS 3
97unsigned char type_2_irq[TYPE_2_IRQS] = {
98 0, 0, 0 ** could anyone find these for me ? (see AURORA_ALLIRQ below) **
99 };
100unsigned char type_2_mask[TYPE_2_IRQS] = {
101 32, 64, 128
102 };
103*/
104
105/* The following section should only be modified by those who know what
106 * they're doing (or don't, but want to help with some feedback). Modifying
107 * anything raises a _big_ probability for your system to hang, but the
108 * sacrifice worths. (I sacrificed my ext2fs many, many times...)
109 */
110
111/* This one tries to dump to console the name of almost every function called,
112 * and many other debugging info.
113 */
114#undef AURORA_DEBUG
115
116/* These are the most dangerous and useful defines. They do printk() during
117 * the interrupt processing routine(s), so if you manage to get "flooded" by
118 * irq's, start thinking about the "Power off/on" button...
119 */
120#undef AURORA_INTNORM /* This one enables the "normal" messages, but some
121 * of them cause flood, so I preffered putting
122 * them under a define */
123#undef AURORA_INT_DEBUG /* This one is really bad. */
124
125/* Here's something helpful: after n irq's, the board will be disabled. This
126 * prevents irq flooding during debug (no need to think about power
127 * off/on anymore...)
128 */
129#define AURORA_FLOODPRO 10
130
131/* This one helps finding which irq the board calls, in case of a strange/
132 * unsupported board. AURORA_INT_DEBUG should be enabled, because I don't
133 * think /proc/interrupts or any command will be available in case of an irq
134 * flood... "allirq" is the list of all free irq's.
135 */
136/*
137#define AURORA_ALLIRQ 6
138int allirq[AURORA_ALLIRQ]={
139 2,3,5,7,9,13
140 };
141*/
142
143/* These must not be modified. These values are assumed during the code for
144 * performance optimisations.
145 */
146#define AURORA_NCD180 2 /* two chips per board */
147#define AURORA_NPORT 8 /* 8 ports per chip */
148
149/* several utilities */
150#define AURORA_BOARD(line) (((line) >> 4) & 0x01)
151#define AURORA_CD180(line) (((line) >> 3) & 0x01)
152#define AURORA_PORT(line) ((line) & 15)
153
154#define AURORA_TNPORTS (AURORA_NBOARD*AURORA_NCD180*AURORA_NPORT)
155
156/* Ticks per sec. Used for setting receiver timeout and break length */
157#define AURORA_TPS 4000
158
159#define AURORA_MAGIC 0x0A18
160
161/* Yeah, after heavy testing I decided it must be 6.
162 * Sure, You can change it if needed.
163 */
164#define AURORA_RXFIFO 6 /* Max. receiver FIFO size (1-8) */
165
166#define AURORA_RXTH 7
167
168struct aurora_reg1 {
169 __volatile__ unsigned char r;
170};
171
172struct aurora_reg128 {
173 __volatile__ unsigned char r[128];
174};
175
176struct aurora_reg4 {
177 __volatile__ unsigned char r[4];
178};
179
180struct Aurora_board {
181 unsigned long flags;
182 struct aurora_reg1 * r0; /* This is the board configuration
183 * register (write-only). */
184 struct aurora_reg128 * r[2]; /* These are the registers for the
185 * two chips. */
186 struct aurora_reg4 * r3; /* These are used for hardware-based
187 * acknowledge. Software-based ack is
188 * not supported by CD180. */
189 unsigned int oscfreq; /* The on-board oscillator
190 * frequency, in Hz. */
191 unsigned char irq;
192#ifdef MODULE
193 signed char count; /* counts the use of the board */
194#endif
195 /* Values for the dtr_rts swapped mode. */
196 unsigned char DTR;
197 unsigned char RTS;
198 unsigned char MSVDTR;
199 unsigned char MSVRTS;
200 /* Values for hardware acknowledge. */
201 unsigned char ACK_MINT, ACK_TINT, ACK_RINT;
202};
203
204/* Board configuration register */
205#define AURORA_CFG_ENABLE_IO 8
206#define AURORA_CFG_ENABLE_IRQ 4
207
208/* Board flags */
209#define AURORA_BOARD_PRESENT 0x00000001
210#define AURORA_BOARD_ACTIVE 0x00000002
211#define AURORA_BOARD_TYPE_2 0x00000004 /* don't know how to
212 * detect this yet */
213#define AURORA_BOARD_DTR_FLOW_OK 0x00000008
214
215/* The story goes like this: Cirrus programmed the CD-180 chip to do automatic
216 * hardware flow control, and do it using CTS and DTR. CTS is ok, but, if you
217 * have a modem and the chip drops DTR, then the modem will drop the carrier
218 * (ain't that cute...). Luckily, the guys at Aurora decided to swap DTR and
219 * RTS, which makes the flow control usable. I hope that all the boards made
220 * by Aurora have these two signals swapped. If your's doesn't but you have a
221 * breakout box, you can try to reverse them yourself, then set the following
222 * flag.
223 */
224#undef AURORA_FORCE_DTR_FLOW
225
226/* In fact, a few more words have to be said about hardware flow control.
227 * This driver handles "output" flow control through the on-board facility
228 * CTS Auto Enable. For the "input" flow control there are two cases when
229 * the flow should be controlled. The first case is when the kernel is so
230 * busy that it cannot process IRQ's in time; this flow control can only be
231 * activated by the on-board chip, and if the board has RTS and DTR swapped,
232 * this facility is usable. The second case is when the application is so
233 * busy that it cannot receive bytes from the kernel, and this flow must be
234 * activated by software. This second case is not yet implemented in this
235 * driver. Unfortunately, I estimate that the second case is the one that
236 * occurs the most.
237 */
238
239
240struct Aurora_port {
241 int magic;
242 int baud_base;
243 int flags;
244 struct tty_struct * tty;
245 int count;
246 int blocked_open;
247 long event;
248 int timeout;
249 int close_delay;
250 unsigned char * xmit_buf;
251 int custom_divisor;
252 int xmit_head;
253 int xmit_tail;
254 int xmit_cnt;
255 wait_queue_head_t open_wait;
256 wait_queue_head_t close_wait;
257 struct tq_struct tqueue;
258 struct tq_struct tqueue_hangup;
259 short wakeup_chars;
260 short break_length;
261 unsigned short closing_wait;
262 unsigned char mark_mask;
263 unsigned char SRER;
264 unsigned char MSVR;
265 unsigned char COR2;
266#ifdef AURORA_REPORT_OVERRUN
267 unsigned long overrun;
268#endif
269#ifdef AURORA_REPORT_FIFO
270 unsigned long hits[10];
271#endif
272};
273
274#endif
275#endif /*__LINUX_AURORA_H*/
276
diff --git a/drivers/sbus/char/cd180.h b/drivers/sbus/char/cd180.h
deleted file mode 100644
index 445b86cc65e7..000000000000
--- a/drivers/sbus/char/cd180.h
+++ /dev/null
@@ -1,240 +0,0 @@
1
2/* Definitions for Cirrus Logic CL-CD180 8-port async mux chip */
3#define CD180_NCH 8 /* Total number of channels */
4#define CD180_TPC 16 /* Ticks per character */
5#define CD180_NFIFO 8 /* TX FIFO size */
6
7/* Global registers */
8#define CD180_GFRCR 0x6b /* Global Firmware Revision Code Register */
9#define CD180_SRCR 0x66 /* Service Request Configuration Register */
10#define CD180_PPRH 0x70 /* Prescaler Period Register High */
11#define CD180_PPRL 0x71 /* Prescaler Period Register Low */
12#define CD180_MSMR 0x61 /* Modem Service Match Register */
13#define CD180_TSMR 0x62 /* Transmit Service Match Register */
14#define CD180_RSMR 0x63 /* Receive Service Match Register */
15#define CD180_GSVR 0x40 /* Global Service Vector Register */
16#define CD180_SRSR 0x65 /* Service Request Status Register */
17#define CD180_GSCR 0x41 /* Global Service Channel Register */
18#define CD180_CAR 0x64 /* Channel Access Register */
19
20/* Indexed registers */
21#define CD180_RDCR 0x07 /* Receive Data Count Register */
22#define CD180_RDR 0x78 /* Receiver Data Register */
23#define CD180_RCSR 0x7a /* Receiver Character Status Register */
24#define CD180_TDR 0x7b /* Transmit Data Register */
25#define CD180_EOSRR 0x7f /* End of Service Request Register */
26
27/* Channel Registers */
28#define CD180_SRER 0x02 /* Service Request Enable Register */
29#define CD180_CCR 0x01 /* Channel Command Register */
30#define CD180_COR1 0x03 /* Channel Option Register 1 */
31#define CD180_COR2 0x04 /* Channel Option Register 2 */
32#define CD180_COR3 0x05 /* Channel Option Register 3 */
33#define CD180_CCSR 0x06 /* Channel Control Status Register */
34#define CD180_RTPR 0x18 /* Receive Timeout Period Register */
35#define CD180_RBPRH 0x31 /* Receive Bit Rate Period Register High */
36#define CD180_RBPRL 0x32 /* Receive Bit Rate Period Register Low */
37#define CD180_TBPRH 0x39 /* Transmit Bit Rate Period Register High */
38#define CD180_TBPRL 0x3a /* Transmit Bit Rate Period Register Low */
39#define CD180_SCHR1 0x09 /* Special Character Register 1 */
40#define CD180_SCHR2 0x0a /* Special Character Register 2 */
41#define CD180_SCHR3 0x0b /* Special Character Register 3 */
42#define CD180_SCHR4 0x0c /* Special Character Register 4 */
43#define CD180_MCR 0x12 /* Modem Change Register */
44#define CD180_MCOR1 0x10 /* Modem Change Option 1 Register */
45#define CD180_MCOR2 0x11 /* Modem Change Option 2 Register */
46#define CD180_MSVR 0x28 /* Modem Signal Value Register */
47#define CD180_MSVRTS 0x29 /* Modem Signal Value RTS */
48#define CD180_MSVDTR 0x2a /* Modem Signal Value DTR */
49
50/* Global Interrupt Vector Register (R/W) */
51
52#define GSVR_ITMASK 0x07 /* Interrupt type mask */
53#define GSVR_IT_MDM 0x01 /* Modem Signal Change Interrupt */
54#define GSVR_IT_TX 0x02 /* Transmit Data Interrupt */
55#define GSVR_IT_RGD 0x03 /* Receive Good Data Interrupt */
56#define GSVR_IT_REXC 0x07 /* Receive Exception Interrupt */
57
58
59/* Global Interrupt Channel Register (R/W) */
60
61#define GSCR_CHAN 0x1c /* Channel Number Mask */
62#define GSCR_CHAN_OFF 2 /* Channel Number Offset */
63
64
65/* Channel Address Register (R/W) */
66
67#define CAR_CHAN 0x07 /* Channel Number Mask */
68
69
70/* Receive Character Status Register (R/O) */
71
72#define RCSR_TOUT 0x80 /* Rx Timeout */
73#define RCSR_SCDET 0x70 /* Special Character Detected Mask */
74#define RCSR_NO_SC 0x00 /* No Special Characters Detected */
75#define RCSR_SC_1 0x10 /* Special Char 1 (or 1 & 3) Detected */
76#define RCSR_SC_2 0x20 /* Special Char 2 (or 2 & 4) Detected */
77#define RCSR_SC_3 0x30 /* Special Char 3 Detected */
78#define RCSR_SC_4 0x40 /* Special Char 4 Detected */
79#define RCSR_BREAK 0x08 /* Break has been detected */
80#define RCSR_PE 0x04 /* Parity Error */
81#define RCSR_FE 0x02 /* Frame Error */
82#define RCSR_OE 0x01 /* Overrun Error */
83
84
85/* Channel Command Register (R/W) (commands in groups can be OR-ed) */
86
87#define CCR_HARDRESET 0x81 /* Reset the chip */
88
89#define CCR_SOFTRESET 0x80 /* Soft Channel Reset */
90
91#define CCR_CORCHG1 0x42 /* Channel Option Register 1 Changed */
92#define CCR_CORCHG2 0x44 /* Channel Option Register 2 Changed */
93#define CCR_CORCHG3 0x48 /* Channel Option Register 3 Changed */
94
95#define CCR_SSCH1 0x21 /* Send Special Character 1 */
96
97#define CCR_SSCH2 0x22 /* Send Special Character 2 */
98
99#define CCR_SSCH3 0x23 /* Send Special Character 3 */
100
101#define CCR_SSCH4 0x24 /* Send Special Character 4 */
102
103#define CCR_TXEN 0x18 /* Enable Transmitter */
104#define CCR_RXEN 0x12 /* Enable Receiver */
105
106#define CCR_TXDIS 0x14 /* Disable Transmitter */
107#define CCR_RXDIS 0x11 /* Disable Receiver */
108
109
110/* Service Request Enable Register (R/W) */
111
112#define SRER_DSR 0x80 /* Enable interrupt on DSR change */
113#define SRER_CD 0x40 /* Enable interrupt on CD change */
114#define SRER_CTS 0x20 /* Enable interrupt on CTS change */
115#define SRER_RXD 0x10 /* Enable interrupt on Receive Data */
116#define SRER_RXSC 0x08 /* Enable interrupt on Receive Spec. Char */
117#define SRER_TXRDY 0x04 /* Enable interrupt on TX FIFO empty */
118#define SRER_TXEMPTY 0x02 /* Enable interrupt on TX completely empty */
119#define SRER_RET 0x01 /* Enable interrupt on RX Exc. Timeout */
120
121
122/* Channel Option Register 1 (R/W) */
123
124#define COR1_ODDP 0x80 /* Odd Parity */
125#define COR1_PARMODE 0x60 /* Parity Mode mask */
126#define COR1_NOPAR 0x00 /* No Parity */
127#define COR1_FORCEPAR 0x20 /* Force Parity */
128#define COR1_NORMPAR 0x40 /* Normal Parity */
129#define COR1_IGNORE 0x10 /* Ignore Parity on RX */
130#define COR1_STOPBITS 0x0c /* Number of Stop Bits */
131#define COR1_1SB 0x00 /* 1 Stop Bit */
132#define COR1_15SB 0x04 /* 1.5 Stop Bits */
133#define COR1_2SB 0x08 /* 2 Stop Bits */
134#define COR1_CHARLEN 0x03 /* Character Length */
135#define COR1_5BITS 0x00 /* 5 bits */
136#define COR1_6BITS 0x01 /* 6 bits */
137#define COR1_7BITS 0x02 /* 7 bits */
138#define COR1_8BITS 0x03 /* 8 bits */
139
140
141/* Channel Option Register 2 (R/W) */
142
143#define COR2_IXM 0x80 /* Implied XON mode */
144#define COR2_TXIBE 0x40 /* Enable In-Band (XON/XOFF) Flow Control */
145#define COR2_ETC 0x20 /* Embedded Tx Commands Enable */
146#define COR2_LLM 0x10 /* Local Loopback Mode */
147#define COR2_RLM 0x08 /* Remote Loopback Mode */
148#define COR2_RTSAO 0x04 /* RTS Automatic Output Enable */
149#define COR2_CTSAE 0x02 /* CTS Automatic Enable */
150#define COR2_DSRAE 0x01 /* DSR Automatic Enable */
151
152
153/* Channel Option Register 3 (R/W) */
154
155#define COR3_XONCH 0x80 /* XON is a pair of characters (1 & 3) */
156#define COR3_XOFFCH 0x40 /* XOFF is a pair of characters (2 & 4) */
157#define COR3_FCT 0x20 /* Flow-Control Transparency Mode */
158#define COR3_SCDE 0x10 /* Special Character Detection Enable */
159#define COR3_RXTH 0x0f /* RX FIFO Threshold value (1-8) */
160
161
162/* Channel Control Status Register (R/O) */
163
164#define CCSR_RXEN 0x80 /* Receiver Enabled */
165#define CCSR_RXFLOFF 0x40 /* Receive Flow Off (XOFF was sent) */
166#define CCSR_RXFLON 0x20 /* Receive Flow On (XON was sent) */
167#define CCSR_TXEN 0x08 /* Transmitter Enabled */
168#define CCSR_TXFLOFF 0x04 /* Transmit Flow Off (got XOFF) */
169#define CCSR_TXFLON 0x02 /* Transmit Flow On (got XON) */
170
171
172/* Modem Change Option Register 1 (R/W) */
173
174#define MCOR1_DSRZD 0x80 /* Detect 0->1 transition of DSR */
175#define MCOR1_CDZD 0x40 /* Detect 0->1 transition of CD */
176#define MCOR1_CTSZD 0x20 /* Detect 0->1 transition of CTS */
177#define MCOR1_DTRTH 0x0f /* Auto DTR flow control Threshold (1-8) */
178#define MCOR1_NODTRFC 0x0 /* Automatic DTR flow control disabled */
179
180
181/* Modem Change Option Register 2 (R/W) */
182
183#define MCOR2_DSROD 0x80 /* Detect 1->0 transition of DSR */
184#define MCOR2_CDOD 0x40 /* Detect 1->0 transition of CD */
185#define MCOR2_CTSOD 0x20 /* Detect 1->0 transition of CTS */
186
187
188/* Modem Change Register (R/W) */
189
190#define MCR_DSRCHG 0x80 /* DSR Changed */
191#define MCR_CDCHG 0x40 /* CD Changed */
192#define MCR_CTSCHG 0x20 /* CTS Changed */
193
194
195/* Modem Signal Value Register (R/W) */
196
197#define MSVR_DSR 0x80 /* Current state of DSR input */
198#define MSVR_CD 0x40 /* Current state of CD input */
199#define MSVR_CTS 0x20 /* Current state of CTS input */
200#define MSVR_DTR 0x02 /* Current state of DTR output */
201#define MSVR_RTS 0x01 /* Current state of RTS output */
202
203
204/* Service Request Status Register */
205
206#define SRSR_CMASK 0xC0 /* Current Service Context Mask */
207#define SRSR_CNONE 0x00 /* Not in a service context */
208#define SRSR_CRX 0x40 /* Rx Context */
209#define SRSR_CTX 0x80 /* Tx Context */
210#define SRSR_CMDM 0xC0 /* Modem Context */
211#define SRSR_ANYINT 0x6F /* Any interrupt flag */
212#define SRSR_RINT 0x10 /* Receive Interrupt */
213#define SRSR_TINT 0x04 /* Transmit Interrupt */
214#define SRSR_MINT 0x01 /* Modem Interrupt */
215#define SRSR_REXT 0x20 /* Receive External Interrupt */
216#define SRSR_TEXT 0x08 /* Transmit External Interrupt */
217#define SRSR_MEXT 0x02 /* Modem External Interrupt */
218
219
220/* Service Request Configuration Register */
221
222#define SRCR_PKGTYPE 0x80
223#define SRCR_REGACKEN 0x40
224#define SRCR_DAISYEN 0x20
225#define SRCR_GLOBPRI 0x10
226#define SRCR_UNFAIR 0x08
227#define SRCR_AUTOPRI 0x02
228#define SRCR_PRISEL 0x01
229
230/* Values for register-based Interrupt ACKs */
231#define CD180_ACK_MINT 0x75 /* goes to MSMR */
232#define CD180_ACK_TINT 0x76 /* goes to TSMR */
233#define CD180_ACK_RINT 0x77 /* goes to RSMR */
234
235/* Escape characters */
236
237#define CD180_C_ESC 0x00 /* Escape character */
238#define CD180_C_SBRK 0x81 /* Start sending BREAK */
239#define CD180_C_DELAY 0x82 /* Delay output */
240#define CD180_C_EBRK 0x83 /* Stop sending BREAK */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-23 16:18:14 -0500