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-rw-r--r--drivers/serial/uart00.c782
1 files changed, 0 insertions, 782 deletions
diff --git a/drivers/serial/uart00.c b/drivers/serial/uart00.c
deleted file mode 100644
index 47b504ff38b2..000000000000
--- a/drivers/serial/uart00.c
+++ /dev/null
@@ -1,782 +0,0 @@
1/*
2 * linux/drivers/serial/uart00.c
3 *
4 * Driver for UART00 serial ports
5 *
6 * Based on drivers/char/serial_amba.c, by ARM Limited &
7 * Deep Blue Solutions Ltd.
8 * Copyright 2001 Altera Corporation
9 *
10 * Update for 2.6.4 by Dirk Behme <dirk.behme@de.bosch.com>
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or
15 * (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 *
26 * $Id: uart00.c,v 1.35 2002/07/28 10:03:28 rmk Exp $
27 *
28 */
29#include <linux/config.h>
30
31#if defined(CONFIG_SERIAL_UART00_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
32#define SUPPORT_SYSRQ
33#endif
34
35#include <linux/module.h>
36#include <linux/ioport.h>
37#include <linux/init.h>
38#include <linux/console.h>
39#include <linux/sysrq.h>
40#include <linux/tty.h>
41#include <linux/tty_flip.h>
42#include <linux/serial_core.h>
43#include <linux/serial.h>
44
45#include <asm/io.h>
46#include <asm/irq.h>
47#include <asm/sizes.h>
48
49#include <asm/arch/excalibur.h>
50#define UART00_TYPE (volatile unsigned int*)
51#include <asm/arch/uart00.h>
52#include <asm/arch/int_ctrl00.h>
53
54#define UART_NR 2
55
56#define SERIAL_UART00_NAME "ttyUA"
57#define SERIAL_UART00_MAJOR 204
58#define SERIAL_UART00_MINOR 16 /* Temporary - will change in future */
59#define SERIAL_UART00_NR UART_NR
60#define UART_PORT_SIZE 0x50
61
62#define UART00_ISR_PASS_LIMIT 256
63
64/*
65 * Access macros for the UART00 UARTs
66 */
67#define UART_GET_INT_STATUS(p) inl(UART_ISR((p)->membase))
68#define UART_PUT_IES(p, c) outl(c,UART_IES((p)->membase))
69#define UART_GET_IES(p) inl(UART_IES((p)->membase))
70#define UART_PUT_IEC(p, c) outl(c,UART_IEC((p)->membase))
71#define UART_GET_IEC(p) inl(UART_IEC((p)->membase))
72#define UART_PUT_CHAR(p, c) outl(c,UART_TD((p)->membase))
73#define UART_GET_CHAR(p) inl(UART_RD((p)->membase))
74#define UART_GET_RSR(p) inl(UART_RSR((p)->membase))
75#define UART_GET_RDS(p) inl(UART_RDS((p)->membase))
76#define UART_GET_MSR(p) inl(UART_MSR((p)->membase))
77#define UART_GET_MCR(p) inl(UART_MCR((p)->membase))
78#define UART_PUT_MCR(p, c) outl(c,UART_MCR((p)->membase))
79#define UART_GET_MC(p) inl(UART_MC((p)->membase))
80#define UART_PUT_MC(p, c) outl(c,UART_MC((p)->membase))
81#define UART_GET_TSR(p) inl(UART_TSR((p)->membase))
82#define UART_GET_DIV_HI(p) inl(UART_DIV_HI((p)->membase))
83#define UART_PUT_DIV_HI(p,c) outl(c,UART_DIV_HI((p)->membase))
84#define UART_GET_DIV_LO(p) inl(UART_DIV_LO((p)->membase))
85#define UART_PUT_DIV_LO(p,c) outl(c,UART_DIV_LO((p)->membase))
86#define UART_RX_DATA(s) ((s) & UART_RSR_RX_LEVEL_MSK)
87#define UART_TX_READY(s) (((s) & UART_TSR_TX_LEVEL_MSK) < 15)
88//#define UART_TX_EMPTY(p) ((UART_GET_FR(p) & UART00_UARTFR_TMSK) == 0)
89
90static void uart00_stop_tx(struct uart_port *port)
91{
92 UART_PUT_IEC(port, UART_IEC_TIE_MSK);
93}
94
95static void uart00_stop_rx(struct uart_port *port)
96{
97 UART_PUT_IEC(port, UART_IEC_RE_MSK);
98}
99
100static void uart00_enable_ms(struct uart_port *port)
101{
102 UART_PUT_IES(port, UART_IES_ME_MSK);
103}
104
105static void
106uart00_rx_chars(struct uart_port *port, struct pt_regs *regs)
107{
108 struct tty_struct *tty = port->info->tty;
109 unsigned int status, ch, rds, flg, ignored = 0;
110
111 status = UART_GET_RSR(port);
112 while (UART_RX_DATA(status)) {
113 /*
114 * We need to read rds before reading the
115 * character from the fifo
116 */
117 rds = UART_GET_RDS(port);
118 ch = UART_GET_CHAR(port);
119 port->icount.rx++;
120
121 if (tty->flip.count >= TTY_FLIPBUF_SIZE)
122 goto ignore_char;
123
124 flg = TTY_NORMAL;
125
126 /*
127 * Note that the error handling code is
128 * out of the main execution path
129 */
130 if (rds & (UART_RDS_BI_MSK |UART_RDS_FE_MSK|
131 UART_RDS_PE_MSK |UART_RDS_PE_MSK))
132 goto handle_error;
133 if (uart_handle_sysrq_char(port, ch, regs))
134 goto ignore_char;
135
136 error_return:
137 tty_insert_flip_char(tty, ch, flg);
138
139 ignore_char:
140 status = UART_GET_RSR(port);
141 }
142 out:
143 tty_flip_buffer_push(tty);
144 return;
145
146 handle_error:
147 if (rds & UART_RDS_BI_MSK) {
148 status &= ~(UART_RDS_FE_MSK | UART_RDS_PE_MSK);
149 port->icount.brk++;
150 if (uart_handle_break(port))
151 goto ignore_char;
152 } else if (rds & UART_RDS_PE_MSK)
153 port->icount.parity++;
154 else if (rds & UART_RDS_FE_MSK)
155 port->icount.frame++;
156 if (rds & UART_RDS_OE_MSK)
157 port->icount.overrun++;
158
159 if (rds & port->ignore_status_mask) {
160 if (++ignored > 100)
161 goto out;
162 goto ignore_char;
163 }
164 rds &= port->read_status_mask;
165
166 if (rds & UART_RDS_BI_MSK)
167 flg = TTY_BREAK;
168 else if (rds & UART_RDS_PE_MSK)
169 flg = TTY_PARITY;
170 else if (rds & UART_RDS_FE_MSK)
171 flg = TTY_FRAME;
172
173 if (rds & UART_RDS_OE_MSK) {
174 /*
175 * CHECK: does overrun affect the current character?
176 * ASSUMPTION: it does not.
177 */
178 tty_insert_flip_char(tty, ch, flg);
179 ch = 0;
180 flg = TTY_OVERRUN;
181 }
182#ifdef SUPPORT_SYSRQ
183 port->sysrq = 0;
184#endif
185 goto error_return;
186}
187
188static void uart00_tx_chars(struct uart_port *port)
189{
190 struct circ_buf *xmit = &port->info->xmit;
191 int count;
192
193 if (port->x_char) {
194 while ((UART_GET_TSR(port) & UART_TSR_TX_LEVEL_MSK) == 15)
195 barrier();
196 UART_PUT_CHAR(port, port->x_char);
197 port->icount.tx++;
198 port->x_char = 0;
199 return;
200 }
201 if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
202 uart00_stop_tx(port);
203 return;
204 }
205
206 count = port->fifosize >> 1;
207 do {
208 while ((UART_GET_TSR(port) & UART_TSR_TX_LEVEL_MSK) == 15)
209 barrier();
210 UART_PUT_CHAR(port, xmit->buf[xmit->tail]);
211 xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
212 port->icount.tx++;
213 if (uart_circ_empty(xmit))
214 break;
215 } while (--count > 0);
216
217 if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
218 uart_write_wakeup(port);
219
220 if (uart_circ_empty(xmit))
221 uart00_stop_tx(port);
222}
223
224static void uart00_start_tx(struct uart_port *port)
225{
226 UART_PUT_IES(port, UART_IES_TIE_MSK);
227 uart00_tx_chars(port);
228}
229
230static void uart00_modem_status(struct uart_port *port)
231{
232 unsigned int status;
233
234 status = UART_GET_MSR(port);
235
236 if (!(status & (UART_MSR_DCTS_MSK | UART_MSR_DDSR_MSK |
237 UART_MSR_TERI_MSK | UART_MSR_DDCD_MSK)))
238 return;
239
240 if (status & UART_MSR_DDCD_MSK)
241 uart_handle_dcd_change(port, status & UART_MSR_DCD_MSK);
242
243 if (status & UART_MSR_DDSR_MSK)
244 port->icount.dsr++;
245
246 if (status & UART_MSR_DCTS_MSK)
247 uart_handle_cts_change(port, status & UART_MSR_CTS_MSK);
248
249 wake_up_interruptible(&port->info->delta_msr_wait);
250}
251
252static irqreturn_t uart00_int(int irq, void *dev_id, struct pt_regs *regs)
253{
254 struct uart_port *port = dev_id;
255 unsigned int status, pass_counter = 0;
256
257 status = UART_GET_INT_STATUS(port);
258 do {
259 if (status & UART_ISR_RI_MSK)
260 uart00_rx_chars(port, regs);
261 if (status & UART_ISR_MI_MSK)
262 uart00_modem_status(port);
263 if (status & (UART_ISR_TI_MSK | UART_ISR_TII_MSK))
264 uart00_tx_chars(port);
265 if (pass_counter++ > UART00_ISR_PASS_LIMIT)
266 break;
267
268 status = UART_GET_INT_STATUS(port);
269 } while (status);
270
271 return IRQ_HANDLED;
272}
273
274static unsigned int uart00_tx_empty(struct uart_port *port)
275{
276 return UART_GET_TSR(port) & UART_TSR_TX_LEVEL_MSK? 0 : TIOCSER_TEMT;
277}
278
279static unsigned int uart00_get_mctrl(struct uart_port *port)
280{
281 unsigned int result = 0;
282 unsigned int status;
283
284 status = UART_GET_MSR(port);
285 if (status & UART_MSR_DCD_MSK)
286 result |= TIOCM_CAR;
287 if (status & UART_MSR_DSR_MSK)
288 result |= TIOCM_DSR;
289 if (status & UART_MSR_CTS_MSK)
290 result |= TIOCM_CTS;
291 if (status & UART_MSR_RI_MSK)
292 result |= TIOCM_RI;
293
294 return result;
295}
296
297static void uart00_set_mctrl_null(struct uart_port *port, unsigned int mctrl)
298{
299}
300
301static void uart00_break_ctl(struct uart_port *port, int break_state)
302{
303 unsigned long flags;
304 unsigned int mcr;
305
306 spin_lock_irqsave(&port->lock, flags);
307 mcr = UART_GET_MCR(port);
308 if (break_state == -1)
309 mcr |= UART_MCR_BR_MSK;
310 else
311 mcr &= ~UART_MCR_BR_MSK;
312 UART_PUT_MCR(port, mcr);
313 spin_unlock_irqrestore(&port->lock, flags);
314}
315
316static void
317uart00_set_termios(struct uart_port *port, struct termios *termios,
318 struct termios *old)
319{
320 unsigned int uart_mc, old_ies, baud, quot;
321 unsigned long flags;
322
323 /*
324 * We don't support CREAD (yet)
325 */
326 termios->c_cflag |= CREAD;
327
328 /*
329 * Ask the core to calculate the divisor for us.
330 */
331 baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
332 quot = uart_get_divisor(port, baud);
333
334 /* byte size and parity */
335 switch (termios->c_cflag & CSIZE) {
336 case CS5:
337 uart_mc = UART_MC_CLS_CHARLEN_5;
338 break;
339 case CS6:
340 uart_mc = UART_MC_CLS_CHARLEN_6;
341 break;
342 case CS7:
343 uart_mc = UART_MC_CLS_CHARLEN_7;
344 break;
345 default: // CS8
346 uart_mc = UART_MC_CLS_CHARLEN_8;
347 break;
348 }
349 if (termios->c_cflag & CSTOPB)
350 uart_mc|= UART_MC_ST_TWO;
351 if (termios->c_cflag & PARENB) {
352 uart_mc |= UART_MC_PE_MSK;
353 if (!(termios->c_cflag & PARODD))
354 uart_mc |= UART_MC_EP_MSK;
355 }
356
357 spin_lock_irqsave(&port->lock, flags);
358
359 /*
360 * Update the per-port timeout.
361 */
362 uart_update_timeout(port, termios->c_cflag, baud);
363
364 port->read_status_mask = UART_RDS_OE_MSK;
365 if (termios->c_iflag & INPCK)
366 port->read_status_mask |= UART_RDS_FE_MSK | UART_RDS_PE_MSK;
367 if (termios->c_iflag & (BRKINT | PARMRK))
368 port->read_status_mask |= UART_RDS_BI_MSK;
369
370 /*
371 * Characters to ignore
372 */
373 port->ignore_status_mask = 0;
374 if (termios->c_iflag & IGNPAR)
375 port->ignore_status_mask |= UART_RDS_FE_MSK | UART_RDS_PE_MSK;
376 if (termios->c_iflag & IGNBRK) {
377 port->ignore_status_mask |= UART_RDS_BI_MSK;
378 /*
379 * If we're ignoring parity and break indicators,
380 * ignore overruns to (for real raw support).
381 */
382 if (termios->c_iflag & IGNPAR)
383 port->ignore_status_mask |= UART_RDS_OE_MSK;
384 }
385
386 /* first, disable everything */
387 old_ies = UART_GET_IES(port);
388
389 if (UART_ENABLE_MS(port, termios->c_cflag))
390 old_ies |= UART_IES_ME_MSK;
391
392 /* Set baud rate */
393 UART_PUT_DIV_LO(port, (quot & 0xff));
394 UART_PUT_DIV_HI(port, ((quot & 0xf00) >> 8));
395
396 UART_PUT_MC(port, uart_mc);
397 UART_PUT_IES(port, old_ies);
398
399 spin_unlock_irqrestore(&port->lock, flags);
400}
401
402static int uart00_startup(struct uart_port *port)
403{
404 int result;
405
406 /*
407 * Allocate the IRQ
408 */
409 result = request_irq(port->irq, uart00_int, 0, "uart00", port);
410 if (result) {
411 printk(KERN_ERR "Request of irq %d failed\n", port->irq);
412 return result;
413 }
414
415 /*
416 * Finally, enable interrupts. Use the TII interrupt to minimise
417 * the number of interrupts generated. If higher performance is
418 * needed, consider using the TI interrupt with a suitable FIFO
419 * threshold
420 */
421 UART_PUT_IES(port, UART_IES_RE_MSK | UART_IES_TIE_MSK);
422
423 return 0;
424}
425
426static void uart00_shutdown(struct uart_port *port)
427{
428 /*
429 * disable all interrupts, disable the port
430 */
431 UART_PUT_IEC(port, 0xff);
432
433 /* disable break condition and fifos */
434 UART_PUT_MCR(port, UART_GET_MCR(port) &~UART_MCR_BR_MSK);
435
436 /*
437 * Free the interrupt
438 */
439 free_irq(port->irq, port);
440}
441
442static const char *uart00_type(struct uart_port *port)
443{
444 return port->type == PORT_UART00 ? "Altera UART00" : NULL;
445}
446
447/*
448 * Release the memory region(s) being used by 'port'
449 */
450static void uart00_release_port(struct uart_port *port)
451{
452 release_mem_region(port->mapbase, UART_PORT_SIZE);
453
454#ifdef CONFIG_ARCH_CAMELOT
455 if (port->membase != (void*)IO_ADDRESS(EXC_UART00_BASE)) {
456 iounmap(port->membase);
457 }
458#endif
459}
460
461/*
462 * Request the memory region(s) being used by 'port'
463 */
464static int uart00_request_port(struct uart_port *port)
465{
466 return request_mem_region(port->mapbase, UART_PORT_SIZE, "serial_uart00")
467 != NULL ? 0 : -EBUSY;
468}
469
470/*
471 * Configure/autoconfigure the port.
472 */
473static void uart00_config_port(struct uart_port *port, int flags)
474{
475
476 /*
477 * Map the io memory if this is a soft uart
478 */
479 if (!port->membase)
480 port->membase = ioremap_nocache(port->mapbase,SZ_4K);
481
482 if (!port->membase)
483 printk(KERN_ERR "serial00: cannot map io memory\n");
484 else
485 port->type = PORT_UART00;
486
487}
488
489/*
490 * verify the new serial_struct (for TIOCSSERIAL).
491 */
492static int uart00_verify_port(struct uart_port *port, struct serial_struct *ser)
493{
494 int ret = 0;
495 if (ser->type != PORT_UNKNOWN && ser->type != PORT_UART00)
496 ret = -EINVAL;
497 if (ser->irq < 0 || ser->irq >= NR_IRQS)
498 ret = -EINVAL;
499 if (ser->baud_base < 9600)
500 ret = -EINVAL;
501 return ret;
502}
503
504static struct uart_ops uart00_pops = {
505 .tx_empty = uart00_tx_empty,
506 .set_mctrl = uart00_set_mctrl_null,
507 .get_mctrl = uart00_get_mctrl,
508 .stop_tx = uart00_stop_tx,
509 .start_tx = uart00_start_tx,
510 .stop_rx = uart00_stop_rx,
511 .enable_ms = uart00_enable_ms,
512 .break_ctl = uart00_break_ctl,
513 .startup = uart00_startup,
514 .shutdown = uart00_shutdown,
515 .set_termios = uart00_set_termios,
516 .type = uart00_type,
517 .release_port = uart00_release_port,
518 .request_port = uart00_request_port,
519 .config_port = uart00_config_port,
520 .verify_port = uart00_verify_port,
521};
522
523
524#ifdef CONFIG_ARCH_CAMELOT
525static struct uart_port epxa10db_port = {
526 .membase = (void*)IO_ADDRESS(EXC_UART00_BASE),
527 .mapbase = EXC_UART00_BASE,
528 .iotype = SERIAL_IO_MEM,
529 .irq = IRQ_UART,
530 .uartclk = EXC_AHB2_CLK_FREQUENCY,
531 .fifosize = 16,
532 .ops = &uart00_pops,
533 .flags = ASYNC_BOOT_AUTOCONF,
534};
535#endif
536
537
538#ifdef CONFIG_SERIAL_UART00_CONSOLE
539static void uart00_console_write(struct console *co, const char *s, unsigned count)
540{
541#ifdef CONFIG_ARCH_CAMELOT
542 struct uart_port *port = &epxa10db_port;
543 unsigned int status, old_ies;
544 int i;
545
546 /*
547 * First save the CR then disable the interrupts
548 */
549 old_ies = UART_GET_IES(port);
550 UART_PUT_IEC(port,0xff);
551
552 /*
553 * Now, do each character
554 */
555 for (i = 0; i < count; i++) {
556 do {
557 status = UART_GET_TSR(port);
558 } while (!UART_TX_READY(status));
559 UART_PUT_CHAR(port, s[i]);
560 if (s[i] == '\n') {
561 do {
562 status = UART_GET_TSR(port);
563 } while (!UART_TX_READY(status));
564 UART_PUT_CHAR(port, '\r');
565 }
566 }
567
568 /*
569 * Finally, wait for transmitter to become empty
570 * and restore the IES
571 */
572 do {
573 status = UART_GET_TSR(port);
574 } while (status & UART_TSR_TX_LEVEL_MSK);
575 UART_PUT_IES(port, old_ies);
576#endif
577}
578
579static void __init
580uart00_console_get_options(struct uart_port *port, int *baud,
581 int *parity, int *bits)
582{
583 unsigned int uart_mc, quot;
584
585 uart_mc = UART_GET_MC(port);
586
587 *parity = 'n';
588 if (uart_mc & UART_MC_PE_MSK) {
589 if (uart_mc & UART_MC_EP_MSK)
590 *parity = 'e';
591 else
592 *parity = 'o';
593 }
594
595 switch (uart_mc & UART_MC_CLS_MSK) {
596 case UART_MC_CLS_CHARLEN_5:
597 *bits = 5;
598 break;
599 case UART_MC_CLS_CHARLEN_6:
600 *bits = 6;
601 break;
602 case UART_MC_CLS_CHARLEN_7:
603 *bits = 7;
604 break;
605 case UART_MC_CLS_CHARLEN_8:
606 *bits = 8;
607 break;
608 }
609 quot = UART_GET_DIV_LO(port) | (UART_GET_DIV_HI(port) << 8);
610 *baud = port->uartclk / (16 *quot );
611}
612
613static int __init uart00_console_setup(struct console *co, char *options)
614{
615 struct uart_port *port;
616 int baud = 115200;
617 int bits = 8;
618 int parity = 'n';
619 int flow = 'n';
620
621#ifdef CONFIG_ARCH_CAMELOT
622 port = &epxa10db_port; ;
623#else
624 return -ENODEV;
625#endif
626 if (options)
627 uart_parse_options(options, &baud, &parity, &bits, &flow);
628 else
629 uart00_console_get_options(port, &baud, &parity, &bits);
630
631 return uart_set_options(port, co, baud, parity, bits, flow);
632}
633
634extern struct uart_driver uart00_reg;
635static struct console uart00_console = {
636 .name = SERIAL_UART00_NAME,
637 .write = uart00_console_write,
638 .device = uart_console_device,
639 .setup = uart00_console_setup,
640 .flags = CON_PRINTBUFFER,
641 .index = 0,
642 .data = &uart00_reg,
643};
644
645static int __init uart00_console_init(void)
646{
647 register_console(&uart00_console);
648 return 0;
649}
650console_initcall(uart00_console_init);
651
652#define UART00_CONSOLE &uart00_console
653#else
654#define UART00_CONSOLE NULL
655#endif
656
657static struct uart_driver uart00_reg = {
658 .owner = NULL,
659 .driver_name = SERIAL_UART00_NAME,
660 .dev_name = SERIAL_UART00_NAME,
661 .major = SERIAL_UART00_MAJOR,
662 .minor = SERIAL_UART00_MINOR,
663 .nr = UART_NR,
664 .cons = UART00_CONSOLE,
665};
666
667struct dev_port_entry{
668 unsigned int base_addr;
669 struct uart_port *port;
670};
671
672#ifdef CONFIG_PLD_HOTSWAP
673
674static struct dev_port_entry dev_port_map[UART_NR];
675
676/*
677 * Keep a mapping of dev_info addresses -> port lines to use when
678 * removing ports dev==NULL indicates unused entry
679 */
680
681struct uart00_ps_data{
682 unsigned int clk;
683 unsigned int fifosize;
684};
685
686int uart00_add_device(struct pldhs_dev_info* dev_info, void* dev_ps_data)
687{
688 struct uart00_ps_data* dev_ps=dev_ps_data;
689 struct uart_port * port;
690 int i,result;
691
692 i=0;
693 while(dev_port_map[i].port)
694 i++;
695
696 if(i==UART_NR){
697 printk(KERN_WARNING "uart00: Maximum number of ports reached\n");
698 return 0;
699 }
700
701 port=kmalloc(sizeof(struct uart_port),GFP_KERNEL);
702 if(!port)
703 return -ENOMEM;
704
705 printk("clk=%d fifo=%d\n",dev_ps->clk,dev_ps->fifosize);
706 port->membase=0;
707 port->mapbase=dev_info->base_addr;
708 port->iotype=SERIAL_IO_MEM;
709 port->irq=dev_info->irq;
710 port->uartclk=dev_ps->clk;
711 port->fifosize=dev_ps->fifosize;
712 port->ops=&uart00_pops;
713 port->line=i;
714 port->flags=ASYNC_BOOT_AUTOCONF;
715
716 result=uart_add_one_port(&uart00_reg, port);
717 if(result){
718 printk("uart_add_one_port returned %d\n",result);
719 return result;
720 }
721 dev_port_map[i].base_addr=dev_info->base_addr;
722 dev_port_map[i].port=port;
723 printk("uart00: added device at %x as ttyUA%d\n",dev_port_map[i].base_addr,i);
724 return 0;
725
726}
727
728int uart00_remove_devices(void)
729{
730 int i,result;
731
732
733 result=0;
734 for(i=1;i<UART_NR;i++){
735 if(dev_port_map[i].base_addr){
736 result=uart_remove_one_port(&uart00_reg, dev_port_map[i].port);
737 if(result)
738 return result;
739
740 /* port removed sucessfully, so now tidy up */
741 kfree(dev_port_map[i].port);
742 dev_port_map[i].base_addr=0;
743 dev_port_map[i].port=NULL;
744 }
745 }
746 return 0;
747
748}
749
750struct pld_hotswap_ops uart00_pldhs_ops={
751 .name = "uart00",
752 .add_device = uart00_add_device,
753 .remove_devices = uart00_remove_devices,
754};
755
756#endif
757
758static int __init uart00_init(void)
759{
760 int result;
761
762 printk(KERN_INFO "Serial: UART00 driver $Revision: 1.35 $\n");
763
764 printk(KERN_WARNING "serial_uart00:Using temporary major/minor pairs"
765 " - these WILL change in the future\n");
766
767 result = uart_register_driver(&uart00_reg);
768 if (result)
769 return result;
770#ifdef CONFIG_ARCH_CAMELOT
771 result = uart_add_one_port(&uart00_reg,&epxa10db_port);
772#endif
773 if (result)
774 uart_unregister_driver(&uart00_reg);
775
776#ifdef CONFIG_PLD_HOTSWAP
777 pldhs_register_driver(&uart00_pldhs_ops);
778#endif
779 return result;
780}
781
782__initcall(uart00_init);
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-16 09:12:51 -0500