[people/ms/u-boot.git] / common / serial.c

/*
 * (C) Copyright 2004
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <serial.h>
#include <stdio_dev.h>

DECLARE_GLOBAL_DATA_PTR;

static struct serial_device *serial_devices = NULL;
static struct serial_device *serial_current = NULL;

#if !defined(CONFIG_LWMON) && !defined(CONFIG_PXA27X)
struct serial_device *__default_serial_console (void)
{
#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
	return &serial_smc_device;
#elif defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
   || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
	return &serial_scc_device;
#elif defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
   || defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
   || defined(CONFIG_MPC5xxx) || defined(CONFIG_MPC83xx) \
   || defined(CONFIG_MPC85xx) || defined(CONFIG_MPC86xx)
#if defined(CONFIG_CONS_INDEX) && defined(CONFIG_SYS_NS16550_SERIAL)
#if (CONFIG_CONS_INDEX==1)
	return &eserial1_device;
#elif (CONFIG_CONS_INDEX==2)
	return &eserial2_device;
#elif (CONFIG_CONS_INDEX==3)
	return &eserial3_device;
#elif (CONFIG_CONS_INDEX==4)
	return &eserial4_device;
#else
#error "Bad CONFIG_CONS_INDEX."
#endif
#elif defined(CONFIG_UART1_CONSOLE)
		return &serial1_device;
#else
		return &serial0_device;
#endif
#elif defined(CONFIG_S3C2410)
#if defined(CONFIG_SERIAL1)
	return &s3c24xx_serial0_device;
#elif defined(CONFIG_SERIAL2)
	return &s3c24xx_serial1_device;
#elif defined(CONFIG_SERIAL3)
	return &s3c24xx_serial2_device;
#else
#error "CONFIG_SERIAL? missing."
#endif
#elif defined(CONFIG_S5PC1XX)
#if defined(CONFIG_SERIAL0)
	return &s5pc1xx_serial0_device;
#elif defined(CONFIG_SERIAL1)
	return &s5pc1xx_serial1_device;
#elif defined(CONFIG_SERIAL2)
	return &s5pc1xx_serial2_device;
#elif defined(CONFIG_SERIAL3)
	return &s5pc1xx_serial3_device;
#else
#error "CONFIG_SERIAL? missing."
#endif
#elif defined(CONFIG_OMAP3_ZOOM2)
		return ZOOM2_DEFAULT_SERIAL_DEVICE;
#else
#error No default console
#endif
}

struct serial_device *default_serial_console(void) __attribute__((weak, alias("__default_serial_console")));
#endif

int serial_register (struct serial_device *dev)
{
#ifndef CONFIG_RELOC_FIXUP_WORKS
	dev->init += gd->reloc_off;
	dev->setbrg += gd->reloc_off;
	dev->getc += gd->reloc_off;
	dev->tstc += gd->reloc_off;
	dev->putc += gd->reloc_off;
	dev->puts += gd->reloc_off;
#endif

	dev->next = serial_devices;
	serial_devices = dev;

	return 0;
}

void serial_initialize (void)
{
#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2)
	serial_register (&serial_smc_device);
#endif
#if defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
 || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)
	serial_register (&serial_scc_device);
#endif

#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) \
 || defined(CONFIG_405EP) || defined(CONFIG_405EZ) || defined(CONFIG_405EX) \
 || defined(CONFIG_MPC5xxx)
	serial_register(&serial0_device);
	serial_register(&serial1_device);
#endif

#if defined(CONFIG_SYS_NS16550_SERIAL)
#if defined(CONFIG_SYS_NS16550_COM1)
	serial_register(&eserial1_device);
#endif
#if defined(CONFIG_SYS_NS16550_COM2)
	serial_register(&eserial2_device);
#endif
#if defined(CONFIG_SYS_NS16550_COM3)
	serial_register(&eserial3_device);
#endif
#if defined(CONFIG_SYS_NS16550_COM4)
	serial_register(&eserial4_device);
#endif
#endif /* CONFIG_SYS_NS16550_SERIAL */
#if defined (CONFIG_FFUART)
	serial_register(&serial_ffuart_device);
#endif
#if defined (CONFIG_BTUART)
	serial_register(&serial_btuart_device);
#endif
#if defined (CONFIG_STUART)
	serial_register(&serial_stuart_device);
#endif
#if defined(CONFIG_S3C2410)
	serial_register(&s3c24xx_serial0_device);
	serial_register(&s3c24xx_serial1_device);
	serial_register(&s3c24xx_serial2_device);
#endif
#if defined(CONFIG_S5PC1XX)
	serial_register(&s5pc1xx_serial0_device);
	serial_register(&s5pc1xx_serial1_device);
	serial_register(&s5pc1xx_serial2_device);
	serial_register(&s5pc1xx_serial3_device);
#endif
	serial_assign (default_serial_console ()->name);
}

void serial_stdio_init (void)
{
	struct stdio_dev dev;
	struct serial_device *s = serial_devices;

	while (s) {
		memset (&dev, 0, sizeof (dev));

		strcpy (dev.name, s->name);
		dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;

		dev.start = s->init;
		dev.putc = s->putc;
		dev.puts = s->puts;
		dev.getc = s->getc;
		dev.tstc = s->tstc;

		stdio_register (&dev);

		s = s->next;
	}
}

int serial_assign (char *name)
{
	struct serial_device *s;

	for (s = serial_devices; s; s = s->next) {
		if (strcmp (s->name, name) == 0) {
			serial_current = s;
			return 0;
		}
	}

	return 1;
}

void serial_reinit_all (void)
{
	struct serial_device *s;

	for (s = serial_devices; s; s = s->next) {
		s->init ();
	}
}

int serial_init (void)
{
	if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
		struct serial_device *dev = default_serial_console ();

		return dev->init ();
	}

	return serial_current->init ();
}

void serial_setbrg (void)
{
	if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
		struct serial_device *dev = default_serial_console ();

		dev->setbrg ();
		return;
	}

	serial_current->setbrg ();
}

int serial_getc (void)
{
	if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
		struct serial_device *dev = default_serial_console ();

		return dev->getc ();
	}

	return serial_current->getc ();
}

int serial_tstc (void)
{
	if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
		struct serial_device *dev = default_serial_console ();

		return dev->tstc ();
	}

	return serial_current->tstc ();
}

void serial_putc (const char c)
{
	if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
		struct serial_device *dev = default_serial_console ();

		dev->putc (c);
		return;
	}

	serial_current->putc (c);
}

void serial_puts (const char *s)
{
	if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
		struct serial_device *dev = default_serial_console ();

		dev->puts (s);
		return;
	}

	serial_current->puts (s);
}
Commit	Line	Data
281e00a3 WD	1	/*
	2	* (C) Copyright 2004
	3	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	#include <common.h>
	25	#include <serial.h>
52cb4d4f	26	#include <stdio_dev.h>
281e00a3	27
d87080b7 WD	28	DECLARE_GLOBAL_DATA_PTR;
d87080b7 WD	29
281e00a3 WD	30	static struct serial_device *serial_devices = NULL;
	31	static struct serial_device *serial_current = NULL;
	32
80172c61	33	#if !defined(CONFIG_LWMON) && !defined(CONFIG_PXA27X)
1208a2df	34	struct serial_device *__default_serial_console (void)
281e00a3 WD	35	{
	36	#if defined(CONFIG_8xx_CONS_SMC1) \|\| defined(CONFIG_8xx_CONS_SMC2)
	37	return &serial_smc_device;
	38	#elif defined(CONFIG_8xx_CONS_SCC1) \|\| defined(CONFIG_8xx_CONS_SCC2) \
	39	\|\| defined(CONFIG_8xx_CONS_SCC3) \|\| defined(CONFIG_8xx_CONS_SCC4)
	40	return &serial_scc_device;
ff36fd85	41	#elif defined(CONFIG_405GP) \|\| defined(CONFIG_405CR) \|\| defined(CONFIG_440) \
dbbd1257	42	\|\| defined(CONFIG_405EP) \|\| defined(CONFIG_405EZ) \|\| defined(CONFIG_405EX) \
039594a4 PA	43	\|\| defined(CONFIG_MPC5xxx) \|\| defined(CONFIG_MPC83xx) \
039594a4 PA	44	\|\| defined(CONFIG_MPC85xx) \|\| defined(CONFIG_MPC86xx)
6d0f6bcf	45	#if defined(CONFIG_CONS_INDEX) && defined(CONFIG_SYS_NS16550_SERIAL)
0fd30252 WD	46	#if (CONFIG_CONS_INDEX==1)
	47	return &eserial1_device;
	48	#elif (CONFIG_CONS_INDEX==2)
	49	return &eserial2_device;
	50	#elif (CONFIG_CONS_INDEX==3)
	51	return &eserial3_device;
	52	#elif (CONFIG_CONS_INDEX==4)
	53	return &eserial4_device;
	54	#else
	55	#error "Bad CONFIG_CONS_INDEX."
	56	#endif
	57	#elif defined(CONFIG_UART1_CONSOLE)
6c5879f3 MB	58	return &serial1_device;
	59	#else
	60	return &serial0_device;
	61	#endif
a7c185ed HW	62	#elif defined(CONFIG_S3C2410)
	63	#if defined(CONFIG_SERIAL1)
	64	return &s3c24xx_serial0_device;
	65	#elif defined(CONFIG_SERIAL2)
	66	return &s3c24xx_serial1_device;
	67	#elif defined(CONFIG_SERIAL3)
	68	return &s3c24xx_serial2_device;
	69	#else
	70	#error "CONFIG_SERIAL? missing."
	71	#endif
dd2c9e6a MK	72	#elif defined(CONFIG_S5PC1XX)
	73	#if defined(CONFIG_SERIAL0)
	74	return &s5pc1xx_serial0_device;
	75	#elif defined(CONFIG_SERIAL1)
	76	return &s5pc1xx_serial1_device;
	77	#elif defined(CONFIG_SERIAL2)
	78	return &s5pc1xx_serial2_device;
	79	#elif defined(CONFIG_SERIAL3)
	80	return &s5pc1xx_serial3_device;
	81	#else
	82	#error "CONFIG_SERIAL? missing."
	83	#endif
660888b7 TR	84	#elif defined(CONFIG_OMAP3_ZOOM2)
660888b7 TR	85	return ZOOM2_DEFAULT_SERIAL_DEVICE;
281e00a3 WD	86	#else
	87	#error No default console
	88	#endif
	89	}
1208a2df MF	90
1208a2df MF	91	struct serial_device *default_serial_console(void) __attribute__((weak, alias("__default_serial_console")));
281e00a3 WD	92	#endif
281e00a3 WD	93
80172c61	94	int serial_register (struct serial_device *dev)
281e00a3	95	{
521af04d	96	#ifndef CONFIG_RELOC_FIXUP_WORKS
281e00a3 WD	97	dev->init += gd->reloc_off;
	98	dev->setbrg += gd->reloc_off;
	99	dev->getc += gd->reloc_off;
	100	dev->tstc += gd->reloc_off;
	101	dev->putc += gd->reloc_off;
	102	dev->puts += gd->reloc_off;
521af04d	103	#endif
281e00a3 WD	104
	105	dev->next = serial_devices;
	106	serial_devices = dev;
	107
	108	return 0;
	109	}
	110
2ee66533	111	void serial_initialize (void)
281e00a3 WD	112	{
281e00a3 WD	113	#if defined(CONFIG_8xx_CONS_SMC1) \|\| defined(CONFIG_8xx_CONS_SMC2)
2ee66533	114	serial_register (&serial_smc_device);
281e00a3 WD	115	#endif
	116	#if defined(CONFIG_8xx_CONS_SCC1) \|\| defined(CONFIG_8xx_CONS_SCC2) \
	117	\|\| defined(CONFIG_8xx_CONS_SCC3) \|\| defined(CONFIG_8xx_CONS_SCC4)
2ee66533	118	serial_register (&serial_scc_device);
281e00a3 WD	119	#endif
281e00a3 WD	120
ff36fd85	121	#if defined(CONFIG_405GP) \|\| defined(CONFIG_405CR) \|\| defined(CONFIG_440) \
dbbd1257 SR	122	\|\| defined(CONFIG_405EP) \|\| defined(CONFIG_405EZ) \|\| defined(CONFIG_405EX) \
dbbd1257 SR	123	\|\| defined(CONFIG_MPC5xxx)
ff36fd85 WD	124	serial_register(&serial0_device);
	125	serial_register(&serial1_device);
	126	#endif
	127
6d0f6bcf JCPV	128	#if defined(CONFIG_SYS_NS16550_SERIAL)
6d0f6bcf JCPV	129	#if defined(CONFIG_SYS_NS16550_COM1)
0fd30252 WD	130	serial_register(&eserial1_device);
0fd30252 WD	131	#endif
6d0f6bcf	132	#if defined(CONFIG_SYS_NS16550_COM2)
0fd30252 WD	133	serial_register(&eserial2_device);
0fd30252 WD	134	#endif
6d0f6bcf	135	#if defined(CONFIG_SYS_NS16550_COM3)
0fd30252 WD	136	serial_register(&eserial3_device);
0fd30252 WD	137	#endif
6d0f6bcf	138	#if defined(CONFIG_SYS_NS16550_COM4)
0fd30252 WD	139	serial_register(&eserial4_device);
0fd30252 WD	140	#endif
6d0f6bcf	141	#endif /* CONFIG_SYS_NS16550_SERIAL */
80172c61 SB	142	#if defined (CONFIG_FFUART)
	143	serial_register(&serial_ffuart_device);
	144	#endif
	145	#if defined (CONFIG_BTUART)
	146	serial_register(&serial_btuart_device);
	147	#endif
	148	#if defined (CONFIG_STUART)
	149	serial_register(&serial_stuart_device);
a7c185ed HW	150	#endif
	151	#if defined(CONFIG_S3C2410)
	152	serial_register(&s3c24xx_serial0_device);
	153	serial_register(&s3c24xx_serial1_device);
	154	serial_register(&s3c24xx_serial2_device);
dd2c9e6a MK	155	#endif
	156	#if defined(CONFIG_S5PC1XX)
	157	serial_register(&s5pc1xx_serial0_device);
	158	serial_register(&s5pc1xx_serial1_device);
	159	serial_register(&s5pc1xx_serial2_device);
	160	serial_register(&s5pc1xx_serial3_device);
80172c61	161	#endif
2ee66533	162	serial_assign (default_serial_console ()->name);
281e00a3 WD	163	}
281e00a3 WD	164
52cb4d4f	165	void serial_stdio_init (void)
281e00a3	166	{
52cb4d4f	167	struct stdio_dev dev;
281e00a3 WD	168	struct serial_device *s = serial_devices;
281e00a3 WD	169
2ee66533	170	while (s) {
281e00a3 WD	171	memset (&dev, 0, sizeof (dev));
	172
	173	strcpy (dev.name, s->name);
	174	dev.flags = DEV_FLAGS_OUTPUT \| DEV_FLAGS_INPUT;
	175
	176	dev.start = s->init;
	177	dev.putc = s->putc;
	178	dev.puts = s->puts;
	179	dev.getc = s->getc;
	180	dev.tstc = s->tstc;
	181
52cb4d4f	182	stdio_register (&dev);
281e00a3 WD	183
	184	s = s->next;
	185	}
	186	}
	187
2ee66533	188	int serial_assign (char *name)
281e00a3 WD	189	{
	190	struct serial_device *s;
	191
2ee66533 WD	192	for (s = serial_devices; s; s = s->next) {
2ee66533 WD	193	if (strcmp (s->name, name) == 0) {
281e00a3 WD	194	serial_current = s;
	195	return 0;
	196	}
	197	}
	198
	199	return 1;
	200	}
	201
2ee66533	202	void serial_reinit_all (void)
281e00a3 WD	203	{
	204	struct serial_device *s;
	205
2ee66533 WD	206	for (s = serial_devices; s; s = s->next) {
2ee66533 WD	207	s->init ();
281e00a3 WD	208	}
	209	}
	210
2ee66533	211	int serial_init (void)
281e00a3	212	{
2ee66533 WD	213	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	214	struct serial_device *dev = default_serial_console ();
	215
	216	return dev->init ();
281e00a3 WD	217	}
281e00a3 WD	218
2ee66533	219	return serial_current->init ();
281e00a3 WD	220	}
281e00a3 WD	221
2ee66533	222	void serial_setbrg (void)
281e00a3	223	{
2ee66533 WD	224	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	225	struct serial_device *dev = default_serial_console ();
	226
	227	dev->setbrg ();
281e00a3 WD	228	return;
	229	}
	230
2ee66533	231	serial_current->setbrg ();
281e00a3 WD	232	}
281e00a3 WD	233
2ee66533	234	int serial_getc (void)
281e00a3	235	{
2ee66533 WD	236	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	237	struct serial_device *dev = default_serial_console ();
	238
	239	return dev->getc ();
281e00a3 WD	240	}
281e00a3 WD	241
2ee66533	242	return serial_current->getc ();
281e00a3 WD	243	}
281e00a3 WD	244
2ee66533	245	int serial_tstc (void)
281e00a3	246	{
2ee66533 WD	247	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	248	struct serial_device *dev = default_serial_console ();
	249
	250	return dev->tstc ();
281e00a3 WD	251	}
281e00a3 WD	252
2ee66533	253	return serial_current->tstc ();
281e00a3 WD	254	}
281e00a3 WD	255
2ee66533	256	void serial_putc (const char c)
281e00a3	257	{
2ee66533 WD	258	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	259	struct serial_device *dev = default_serial_console ();
	260
	261	dev->putc (c);
281e00a3 WD	262	return;
	263	}
	264
2ee66533	265	serial_current->putc (c);
281e00a3 WD	266	}
281e00a3 WD	267
2ee66533	268	void serial_puts (const char *s)
281e00a3	269	{
2ee66533 WD	270	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	271	struct serial_device *dev = default_serial_console ();
	272
	273	dev->puts (s);
281e00a3 WD	274	return;
	275	}
	276
2ee66533	277	serial_current->puts (s);
281e00a3	278	}