[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_MPC512X)
#if (CONFIG_PSC_CONSOLE == 3)
		return &serial3_device;
#elif (CONFIG_PSC_CONSOLE == 6)
		return &serial6_device;
#else
#error "Bad CONFIG_PSC_CONSOLE."
#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 &s5p_serial0_device;
#elif defined(CONFIG_SERIAL1)
	return &s5p_serial1_device;
#elif defined(CONFIG_SERIAL2)
	return &s5p_serial2_device;
#elif defined(CONFIG_SERIAL3)
	return &s5p_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(&s5p_serial0_device);
	serial_register(&s5p_serial1_device);
	serial_register(&s5p_serial2_device);
	serial_register(&s5p_serial3_device);
#endif
#if defined(CONFIG_MPC512X)
#if defined(CONFIG_SYS_PSC1)
	serial_register(&serial1_device);
#endif
#if defined(CONFIG_SYS_PSC3)
	serial_register(&serial3_device);
#endif
#if defined(CONFIG_SYS_PSC4)
	serial_register(&serial4_device);
#endif
#if defined(CONFIG_SYS_PSC6)
	serial_register(&serial6_device);
#endif
#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.stop = s->uninit;
		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
e3b28e67 AG	62	#elif defined(CONFIG_MPC512X)
	63	#if (CONFIG_PSC_CONSOLE == 3)
	64	return &serial3_device;
	65	#elif (CONFIG_PSC_CONSOLE == 6)
	66	return &serial6_device;
	67	#else
	68	#error "Bad CONFIG_PSC_CONSOLE."
	69	#endif
a7c185ed HW	70	#elif defined(CONFIG_S3C2410)
	71	#if defined(CONFIG_SERIAL1)
	72	return &s3c24xx_serial0_device;
	73	#elif defined(CONFIG_SERIAL2)
	74	return &s3c24xx_serial1_device;
	75	#elif defined(CONFIG_SERIAL3)
	76	return &s3c24xx_serial2_device;
	77	#else
	78	#error "CONFIG_SERIAL? missing."
	79	#endif
dd2c9e6a MK	80	#elif defined(CONFIG_S5PC1XX)
dd2c9e6a MK	81	#if defined(CONFIG_SERIAL0)
46a3b5c8	82	return &s5p_serial0_device;
dd2c9e6a	83	#elif defined(CONFIG_SERIAL1)
46a3b5c8	84	return &s5p_serial1_device;
dd2c9e6a	85	#elif defined(CONFIG_SERIAL2)
46a3b5c8	86	return &s5p_serial2_device;
dd2c9e6a	87	#elif defined(CONFIG_SERIAL3)
46a3b5c8	88	return &s5p_serial3_device;
dd2c9e6a MK	89	#else
	90	#error "CONFIG_SERIAL? missing."
	91	#endif
660888b7 TR	92	#elif defined(CONFIG_OMAP3_ZOOM2)
660888b7 TR	93	return ZOOM2_DEFAULT_SERIAL_DEVICE;
281e00a3 WD	94	#else
	95	#error No default console
	96	#endif
	97	}
1208a2df MF	98
1208a2df MF	99	struct serial_device *default_serial_console(void) __attribute__((weak, alias("__default_serial_console")));
281e00a3 WD	100	#endif
281e00a3 WD	101
80172c61	102	int serial_register (struct serial_device *dev)
281e00a3	103	{
521af04d	104	#ifndef CONFIG_RELOC_FIXUP_WORKS
281e00a3 WD	105	dev->init += gd->reloc_off;
	106	dev->setbrg += gd->reloc_off;
	107	dev->getc += gd->reloc_off;
	108	dev->tstc += gd->reloc_off;
	109	dev->putc += gd->reloc_off;
	110	dev->puts += gd->reloc_off;
521af04d	111	#endif
281e00a3 WD	112
	113	dev->next = serial_devices;
	114	serial_devices = dev;
	115
	116	return 0;
	117	}
	118
2ee66533	119	void serial_initialize (void)
281e00a3 WD	120	{
281e00a3 WD	121	#if defined(CONFIG_8xx_CONS_SMC1) \|\| defined(CONFIG_8xx_CONS_SMC2)
2ee66533	122	serial_register (&serial_smc_device);
281e00a3 WD	123	#endif
	124	#if defined(CONFIG_8xx_CONS_SCC1) \|\| defined(CONFIG_8xx_CONS_SCC2) \
	125	\|\| defined(CONFIG_8xx_CONS_SCC3) \|\| defined(CONFIG_8xx_CONS_SCC4)
2ee66533	126	serial_register (&serial_scc_device);
281e00a3 WD	127	#endif
281e00a3 WD	128
ff36fd85	129	#if defined(CONFIG_405GP) \|\| defined(CONFIG_405CR) \|\| defined(CONFIG_440) \
dbbd1257 SR	130	\|\| defined(CONFIG_405EP) \|\| defined(CONFIG_405EZ) \|\| defined(CONFIG_405EX) \
dbbd1257 SR	131	\|\| defined(CONFIG_MPC5xxx)
ff36fd85 WD	132	serial_register(&serial0_device);
	133	serial_register(&serial1_device);
	134	#endif
	135
6d0f6bcf JCPV	136	#if defined(CONFIG_SYS_NS16550_SERIAL)
6d0f6bcf JCPV	137	#if defined(CONFIG_SYS_NS16550_COM1)
0fd30252 WD	138	serial_register(&eserial1_device);
0fd30252 WD	139	#endif
6d0f6bcf	140	#if defined(CONFIG_SYS_NS16550_COM2)
0fd30252 WD	141	serial_register(&eserial2_device);
0fd30252 WD	142	#endif
6d0f6bcf	143	#if defined(CONFIG_SYS_NS16550_COM3)
0fd30252 WD	144	serial_register(&eserial3_device);
0fd30252 WD	145	#endif
6d0f6bcf	146	#if defined(CONFIG_SYS_NS16550_COM4)
0fd30252 WD	147	serial_register(&eserial4_device);
0fd30252 WD	148	#endif
6d0f6bcf	149	#endif /* CONFIG_SYS_NS16550_SERIAL */
80172c61 SB	150	#if defined (CONFIG_FFUART)
	151	serial_register(&serial_ffuart_device);
	152	#endif
	153	#if defined (CONFIG_BTUART)
	154	serial_register(&serial_btuart_device);
	155	#endif
	156	#if defined (CONFIG_STUART)
	157	serial_register(&serial_stuart_device);
a7c185ed HW	158	#endif
	159	#if defined(CONFIG_S3C2410)
	160	serial_register(&s3c24xx_serial0_device);
	161	serial_register(&s3c24xx_serial1_device);
	162	serial_register(&s3c24xx_serial2_device);
dd2c9e6a MK	163	#endif
dd2c9e6a MK	164	#if defined(CONFIG_S5PC1XX)
46a3b5c8 MK	165	serial_register(&s5p_serial0_device);
	166	serial_register(&s5p_serial1_device);
	167	serial_register(&s5p_serial2_device);
	168	serial_register(&s5p_serial3_device);
e3b28e67 AG	169	#endif
	170	#if defined(CONFIG_MPC512X)
	171	#if defined(CONFIG_SYS_PSC1)
	172	serial_register(&serial1_device);
	173	#endif
	174	#if defined(CONFIG_SYS_PSC3)
	175	serial_register(&serial3_device);
	176	#endif
	177	#if defined(CONFIG_SYS_PSC4)
	178	serial_register(&serial4_device);
	179	#endif
	180	#if defined(CONFIG_SYS_PSC6)
	181	serial_register(&serial6_device);
	182	#endif
80172c61	183	#endif
2ee66533	184	serial_assign (default_serial_console ()->name);
281e00a3 WD	185	}
281e00a3 WD	186
52cb4d4f	187	void serial_stdio_init (void)
281e00a3	188	{
52cb4d4f	189	struct stdio_dev dev;
281e00a3 WD	190	struct serial_device *s = serial_devices;
281e00a3 WD	191
2ee66533	192	while (s) {
281e00a3 WD	193	memset (&dev, 0, sizeof (dev));
	194
	195	strcpy (dev.name, s->name);
	196	dev.flags = DEV_FLAGS_OUTPUT \| DEV_FLAGS_INPUT;
	197
	198	dev.start = s->init;
e3b28e67	199	dev.stop = s->uninit;
281e00a3 WD	200	dev.putc = s->putc;
	201	dev.puts = s->puts;
	202	dev.getc = s->getc;
	203	dev.tstc = s->tstc;
	204
52cb4d4f	205	stdio_register (&dev);
281e00a3 WD	206
	207	s = s->next;
	208	}
	209	}
	210
2ee66533	211	int serial_assign (char *name)
281e00a3 WD	212	{
	213	struct serial_device *s;
	214
2ee66533 WD	215	for (s = serial_devices; s; s = s->next) {
2ee66533 WD	216	if (strcmp (s->name, name) == 0) {
281e00a3 WD	217	serial_current = s;
	218	return 0;
	219	}
	220	}
	221
	222	return 1;
	223	}
	224
2ee66533	225	void serial_reinit_all (void)
281e00a3 WD	226	{
	227	struct serial_device *s;
	228
2ee66533 WD	229	for (s = serial_devices; s; s = s->next) {
2ee66533 WD	230	s->init ();
281e00a3 WD	231	}
	232	}
	233
2ee66533	234	int serial_init (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->init ();
281e00a3 WD	240	}
281e00a3 WD	241
2ee66533	242	return serial_current->init ();
281e00a3 WD	243	}
281e00a3 WD	244
2ee66533	245	void serial_setbrg (void)
281e00a3	246	{
2ee66533 WD	247	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	248	struct serial_device *dev = default_serial_console ();
	249
	250	dev->setbrg ();
281e00a3 WD	251	return;
	252	}
	253
2ee66533	254	serial_current->setbrg ();
281e00a3 WD	255	}
281e00a3 WD	256
2ee66533	257	int serial_getc (void)
281e00a3	258	{
2ee66533 WD	259	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	260	struct serial_device *dev = default_serial_console ();
	261
	262	return dev->getc ();
281e00a3 WD	263	}
281e00a3 WD	264
2ee66533	265	return serial_current->getc ();
281e00a3 WD	266	}
281e00a3 WD	267
2ee66533	268	int serial_tstc (void)
281e00a3	269	{
2ee66533 WD	270	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	271	struct serial_device *dev = default_serial_console ();
	272
	273	return dev->tstc ();
281e00a3 WD	274	}
281e00a3 WD	275
2ee66533	276	return serial_current->tstc ();
281e00a3 WD	277	}
281e00a3 WD	278
2ee66533	279	void serial_putc (const char c)
281e00a3	280	{
2ee66533 WD	281	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	282	struct serial_device *dev = default_serial_console ();
	283
	284	dev->putc (c);
281e00a3 WD	285	return;
	286	}
	287
2ee66533	288	serial_current->putc (c);
281e00a3 WD	289	}
281e00a3 WD	290
2ee66533	291	void serial_puts (const char *s)
281e00a3	292	{
2ee66533 WD	293	if (!(gd->flags & GD_FLG_RELOC) \|\| !serial_current) {
	294	struct serial_device *dev = default_serial_console ();
	295
	296	dev->puts (s);
281e00a3 WD	297	return;
	298	}
	299
2ee66533	300	serial_current->puts (s);
281e00a3	301	}