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

/*
 * Copyright (C) 2009 Sergey Kubushyn <ksi@koi8.net>
 *
 * Changes for multibus/multiadapter I2C support.
 *
 * (C) Copyright 2000
 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <config.h>
#include <common.h>
#include <dm.h>
#include <errno.h>
#include <stdarg.h>
#include <malloc.h>
#include <stdio_dev.h>
#include <serial.h>

#if defined(CONFIG_SYS_I2C)
#include <i2c.h>
#endif

#include <dm/device-internal.h>

DECLARE_GLOBAL_DATA_PTR;

static struct stdio_dev devs;
struct stdio_dev *stdio_devices[] = { NULL, NULL, NULL };
char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" };

#if defined(CONFIG_SPLASH_SCREEN) && !defined(CONFIG_SYS_DEVICE_NULLDEV)
#define	CONFIG_SYS_DEVICE_NULLDEV	1
#endif

#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
#define	CONFIG_SYS_DEVICE_NULLDEV	1
#endif

#ifdef CONFIG_SYS_DEVICE_NULLDEV
static void nulldev_putc(struct stdio_dev *dev, const char c)
{
	/* nulldev is empty! */
}

static void nulldev_puts(struct stdio_dev *dev, const char *s)
{
	/* nulldev is empty! */
}

static int nulldev_input(struct stdio_dev *dev)
{
	/* nulldev is empty! */
	return 0;
}
#endif

static void stdio_serial_putc(struct stdio_dev *dev, const char c)
{
	serial_putc(c);
}

static void stdio_serial_puts(struct stdio_dev *dev, const char *s)
{
	serial_puts(s);
}

static int stdio_serial_getc(struct stdio_dev *dev)
{
	return serial_getc();
}

static int stdio_serial_tstc(struct stdio_dev *dev)
{
	return serial_tstc();
}

/**************************************************************************
 * SYSTEM DRIVERS
 **************************************************************************
 */

static void drv_system_init (void)
{
	struct stdio_dev dev;

	memset (&dev, 0, sizeof (dev));

	strcpy (dev.name, "serial");
	dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
	dev.putc = stdio_serial_putc;
	dev.puts = stdio_serial_puts;
	dev.getc = stdio_serial_getc;
	dev.tstc = stdio_serial_tstc;
	stdio_register (&dev);

#ifdef CONFIG_SYS_DEVICE_NULLDEV
	memset (&dev, 0, sizeof (dev));

	strcpy (dev.name, "nulldev");
	dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
	dev.putc = nulldev_putc;
	dev.puts = nulldev_puts;
	dev.getc = nulldev_input;
	dev.tstc = nulldev_input;

	stdio_register (&dev);
#endif
}

/**************************************************************************
 * DEVICES
 **************************************************************************
 */
struct list_head* stdio_get_list(void)
{
	return &(devs.list);
}

#ifdef CONFIG_DM_VIDEO
/**
 * stdio_probe_device() - Find a device which provides the given stdio device
 *
 * This looks for a device of the given uclass which provides a particular
 * stdio device. It is currently really only useful for UCLASS_VIDEO.
 *
 * Ultimately we want to be able to probe a device by its stdio name. At
 * present devices register in their probe function (for video devices this
 * is done in vidconsole_post_probe()) and we don't know what name they will
 * use until they do so.
 * TODO(sjg@chromium.org): We should be able to determine the name before
 * probing, and probe the required device.
 *
 * @name:	stdio device name (e.g. "vidconsole")
 * id:		Uclass ID of device to look for (e.g. UCLASS_VIDEO)
 * @sdevp:	Returns stdout device, if found, else NULL
 * @return 0 if found, -ENOENT if no device found with that name, other -ve
 *	   on other error
 */
static int stdio_probe_device(const char *name, enum uclass_id id,
			      struct stdio_dev **sdevp)
{
	struct stdio_dev *sdev;
	struct udevice *dev;
	int seq, ret;

	*sdevp = NULL;
	seq = trailing_strtoln(name, NULL);
	if (seq == -1)
		seq = 0;
	ret = uclass_get_device_by_seq(id, seq, &dev);
	if (ret == -ENODEV)
		ret = uclass_first_device_err(id, &dev);
	if (ret) {
		debug("No %s device for seq %d (%s)\n", uclass_get_name(id),
		      seq, name);
		return ret;
	}
	/* The device should be be the last one registered */
	sdev = list_empty(&devs.list) ? NULL :
			list_last_entry(&devs.list, struct stdio_dev, list);
	if (!sdev || strcmp(sdev->name, name)) {
		debug("Device '%s' did not register with stdio as '%s'\n",
		      dev->name, name);
		return -ENOENT;
	}
	*sdevp = sdev;

	return 0;
}
#endif

struct stdio_dev *stdio_get_by_name(const char *name)
{
	struct list_head *pos;
	struct stdio_dev *sdev;

	if (!name)
		return NULL;

	list_for_each(pos, &(devs.list)) {
		sdev = list_entry(pos, struct stdio_dev, list);
		if (strcmp(sdev->name, name) == 0)
			return sdev;
	}
#ifdef CONFIG_DM_VIDEO
	/*
	 * We did not find a suitable stdio device. If there is a video
	 * driver with a name starting with 'vidconsole', we can try probing
	 * that in the hope that it will produce the required stdio device.
	 *
	 * This function is sometimes called with the entire value of
	 * 'stdout', which may include a list of devices separate by commas.
	 * Obviously this is not going to work, so we ignore that case. The
	 * call path in that case is console_init_r() -> search_device() ->
	 * stdio_get_by_name().
	 */
	if (!strncmp(name, "vidconsole", 10) && !strchr(name, ',') &&
	    !stdio_probe_device(name, UCLASS_VIDEO, &sdev))
		return sdev;
#endif

	return NULL;
}

struct stdio_dev* stdio_clone(struct stdio_dev *dev)
{
	struct stdio_dev *_dev;

	if(!dev)
		return NULL;

	_dev = calloc(1, sizeof(struct stdio_dev));

	if(!_dev)
		return NULL;

	memcpy(_dev, dev, sizeof(struct stdio_dev));

	return _dev;
}

int stdio_register_dev(struct stdio_dev *dev, struct stdio_dev **devp)
{
	struct stdio_dev *_dev;

	_dev = stdio_clone(dev);
	if(!_dev)
		return -ENODEV;
	list_add_tail(&(_dev->list), &(devs.list));
	if (devp)
		*devp = _dev;

	return 0;
}

int stdio_register(struct stdio_dev *dev)
{
	return stdio_register_dev(dev, NULL);
}

/* deregister the device "devname".
 * returns 0 if success, -1 if device is assigned and 1 if devname not found
 */
#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
int stdio_deregister_dev(struct stdio_dev *dev, int force)
{
	int l;
	struct list_head *pos;
	char temp_names[3][16];

	/* get stdio devices (ListRemoveItem changes the dev list) */
	for (l=0 ; l< MAX_FILES; l++) {
		if (stdio_devices[l] == dev) {
			if (force) {
				strcpy(temp_names[l], "nulldev");
				continue;
			}
			/* Device is assigned -> report error */
			return -1;
		}
		memcpy (&temp_names[l][0],
			stdio_devices[l]->name,
			sizeof(temp_names[l]));
	}

	list_del(&(dev->list));
	free(dev);

	/* reassign Device list */
	list_for_each(pos, &(devs.list)) {
		dev = list_entry(pos, struct stdio_dev, list);
		for (l=0 ; l< MAX_FILES; l++) {
			if(strcmp(dev->name, temp_names[l]) == 0)
				stdio_devices[l] = dev;
		}
	}
	return 0;
}

int stdio_deregister(const char *devname, int force)
{
	struct stdio_dev *dev;

	dev = stdio_get_by_name(devname);

	if (!dev) /* device not found */
		return -ENODEV;

	return stdio_deregister_dev(dev, force);
}
#endif /* CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER) */

int stdio_init_tables(void)
{
#if defined(CONFIG_NEEDS_MANUAL_RELOC)
	/* already relocated for current ARM implementation */
	ulong relocation_offset = gd->reloc_off;
	int i;

	/* relocate device name pointers */
	for (i = 0; i < (sizeof (stdio_names) / sizeof (char *)); ++i) {
		stdio_names[i] = (char *) (((ulong) stdio_names[i]) +
						relocation_offset);
	}
#endif /* CONFIG_NEEDS_MANUAL_RELOC */

	/* Initialize the list */
	INIT_LIST_HEAD(&(devs.list));

	return 0;
}

int stdio_add_devices(void)
{
#ifdef CONFIG_DM_KEYBOARD
	struct udevice *dev;
	struct uclass *uc;
	int ret;

	/*
	 * For now we probe all the devices here. At some point this should be
	 * done only when the devices are required - e.g. we have a list of
	 * input devices to start up in the stdin environment variable. That
	 * work probably makes more sense when stdio itself is converted to
	 * driver model.
	 *
	 * TODO(sjg@chromium.org): Convert changing uclass_first_device() etc.
	 * to return the device even on error. Then we could use that here.
	 */
	ret = uclass_get(UCLASS_KEYBOARD, &uc);
	if (ret)
		return ret;

	/* Don't report errors to the caller - assume that they are non-fatal */
	uclass_foreach_dev(dev, uc) {
		ret = device_probe(dev);
		if (ret)
			printf("Failed to probe keyboard '%s'\n", dev->name);
	}
#endif
#ifdef CONFIG_SYS_I2C
	i2c_init_all();
#else
#endif
#ifdef CONFIG_DM_VIDEO
	/*
	 * If the console setting is not in environment variables then
	 * console_init_r() will not be calling iomux_doenv() (which calls
	 * search_device()). So we will not dynamically add devices by
	 * calling stdio_probe_device().
	 *
	 * So just probe all video devices now so that whichever one is
	 * required will be available.
	 */
#ifndef CONFIG_SYS_CONSOLE_IS_IN_ENV
	struct udevice *vdev;
# ifndef CONFIG_DM_KEYBOARD
	int ret;
# endif

	for (ret = uclass_first_device(UCLASS_VIDEO, &vdev);
	     vdev;
	     ret = uclass_next_device(&vdev))
		;
	if (ret)
		printf("%s: Video device failed (ret=%d)\n", __func__, ret);
#endif /* !CONFIG_SYS_CONSOLE_IS_IN_ENV */
#else
# if defined(CONFIG_LCD)
	drv_lcd_init ();
# endif
# if defined(CONFIG_VIDEO) || defined(CONFIG_CFB_CONSOLE)
	drv_video_init ();
# endif
#endif /* CONFIG_DM_VIDEO */
#if defined(CONFIG_KEYBOARD) && !defined(CONFIG_DM_KEYBOARD)
	drv_keyboard_init ();
#endif
	drv_system_init ();
	serial_stdio_init ();
#ifdef CONFIG_USB_TTY
	drv_usbtty_init ();
#endif
#ifdef CONFIG_NETCONSOLE
	drv_nc_init ();
#endif
#ifdef CONFIG_JTAG_CONSOLE
	drv_jtag_console_init ();
#endif
#ifdef CONFIG_CBMEM_CONSOLE
	cbmemc_init();
#endif

	return 0;
}

int stdio_init(void)
{
	stdio_init_tables();
	stdio_add_devices();

	return 0;
}
Commit	Line	Data
91d3256c	1	/*
3f4978c7 HS	2	* Copyright (C) 2009 Sergey Kubushyn <ksi@koi8.net>
	3	*
	4	* Changes for multibus/multiadapter I2C support.
	5	*
91d3256c WD	6	* (C) Copyright 2000
	7	* Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
	8	*
1a459660	9	* SPDX-License-Identifier: GPL-2.0+
91d3256c WD	10	*/
	11
	12	#include <config.h>
	13	#include <common.h>
b206cd73	14	#include <dm.h>
d97143a6	15	#include <errno.h>
91d3256c WD	16	#include <stdarg.h>
91d3256c WD	17	#include <malloc.h>
52cb4d4f	18	#include <stdio_dev.h>
281e00a3	19	#include <serial.h>
ea818dbb	20
69153988	21	#if defined(CONFIG_SYS_I2C)
91d3256c	22	#include <i2c.h>
7f6c2cbc	23	#endif
91d3256c	24
b206cd73 SG	25	#include <dm/device-internal.h>
b206cd73 SG	26
d87080b7 WD	27	DECLARE_GLOBAL_DATA_PTR;
d87080b7 WD	28
52cb4d4f JCPV	29	static struct stdio_dev devs;
52cb4d4f JCPV	30	struct stdio_dev *stdio_devices[] = { NULL, NULL, NULL };
91d3256c WD	31	char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" };
91d3256c WD	32
6d0f6bcf JCPV	33	#if defined(CONFIG_SPLASH_SCREEN) && !defined(CONFIG_SYS_DEVICE_NULLDEV)
6d0f6bcf JCPV	34	#define CONFIG_SYS_DEVICE_NULLDEV 1
d791b1dc WD	35	#endif
d791b1dc WD	36
869588de	37	#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
32d01926 HG	38	#define CONFIG_SYS_DEVICE_NULLDEV 1
32d01926 HG	39	#endif
d791b1dc	40
6d0f6bcf	41	#ifdef CONFIG_SYS_DEVICE_NULLDEV
654f8d0f	42	static void nulldev_putc(struct stdio_dev *dev, const char c)
91d3256c	43	{
c1de7a6d	44	/* nulldev is empty! */
91d3256c WD	45	}
91d3256c WD	46
654f8d0f	47	static void nulldev_puts(struct stdio_dev dev, const char s)
91d3256c	48	{
c1de7a6d	49	/* nulldev is empty! */
91d3256c WD	50	}
91d3256c WD	51
654f8d0f	52	static int nulldev_input(struct stdio_dev *dev)
91d3256c	53	{
c1de7a6d JCPV	54	/* nulldev is empty! */
c1de7a6d JCPV	55	return 0;
91d3256c WD	56	}
	57	#endif
	58
654f8d0f	59	static void stdio_serial_putc(struct stdio_dev *dev, const char c)
709ea543 SG	60	{
	61	serial_putc(c);
	62	}
	63
654f8d0f	64	static void stdio_serial_puts(struct stdio_dev dev, const char s)
709ea543 SG	65	{
	66	serial_puts(s);
	67	}
	68
654f8d0f	69	static int stdio_serial_getc(struct stdio_dev *dev)
709ea543 SG	70	{
	71	return serial_getc();
	72	}
	73
654f8d0f	74	static int stdio_serial_tstc(struct stdio_dev *dev)
709ea543 SG	75	{
	76	return serial_tstc();
	77	}
	78
91d3256c WD	79	/**************************************************************************
	80	* SYSTEM DRIVERS
	81	**************************************************************************
	82	*/
	83
	84	static void drv_system_init (void)
	85	{
52cb4d4f	86	struct stdio_dev dev;
91d3256c WD	87
	88	memset (&dev, 0, sizeof (dev));
	89
	90	strcpy (dev.name, "serial");
1caf934a	91	dev.flags = DEV_FLAGS_OUTPUT \| DEV_FLAGS_INPUT;
709ea543 SG	92	dev.putc = stdio_serial_putc;
	93	dev.puts = stdio_serial_puts;
	94	dev.getc = stdio_serial_getc;
	95	dev.tstc = stdio_serial_tstc;
52cb4d4f	96	stdio_register (&dev);
91d3256c	97
6d0f6bcf	98	#ifdef CONFIG_SYS_DEVICE_NULLDEV
91d3256c WD	99	memset (&dev, 0, sizeof (dev));
	100
	101	strcpy (dev.name, "nulldev");
1caf934a	102	dev.flags = DEV_FLAGS_OUTPUT \| DEV_FLAGS_INPUT;
91d3256c WD	103	dev.putc = nulldev_putc;
	104	dev.puts = nulldev_puts;
	105	dev.getc = nulldev_input;
	106	dev.tstc = nulldev_input;
	107
52cb4d4f	108	stdio_register (&dev);
91d3256c WD	109	#endif
	110	}
	111
	112	/**************************************************************************
	113	* DEVICES
	114	**************************************************************************
	115	*/
52cb4d4f	116	struct list_head* stdio_get_list(void)
c1de7a6d JCPV	117	{
	118	return &(devs.list);
	119	}
	120
d8441ea2 SG	121	#ifdef CONFIG_DM_VIDEO
	122	/**
	123	* stdio_probe_device() - Find a device which provides the given stdio device
	124	*
	125	* This looks for a device of the given uclass which provides a particular
	126	* stdio device. It is currently really only useful for UCLASS_VIDEO.
	127	*
	128	* Ultimately we want to be able to probe a device by its stdio name. At
	129	* present devices register in their probe function (for video devices this
	130	* is done in vidconsole_post_probe()) and we don't know what name they will
	131	* use until they do so.
	132	* TODO(sjg@chromium.org): We should be able to determine the name before
	133	* probing, and probe the required device.
	134	*
	135	* @name: stdio device name (e.g. "vidconsole")
	136	* id: Uclass ID of device to look for (e.g. UCLASS_VIDEO)
	137	* @sdevp: Returns stdout device, if found, else NULL
	138	* @return 0 if found, -ENOENT if no device found with that name, other -ve
	139	* on other error
	140	*/
	141	static int stdio_probe_device(const char *name, enum uclass_id id,
	142	struct stdio_dev **sdevp)
	143	{
	144	struct stdio_dev *sdev;
	145	struct udevice *dev;
	146	int seq, ret;
	147
	148	*sdevp = NULL;
	149	seq = trailing_strtoln(name, NULL);
	150	if (seq == -1)
d844efec SG	151	seq = 0;
	152	ret = uclass_get_device_by_seq(id, seq, &dev);
	153	if (ret == -ENODEV)
d8441ea2	154	ret = uclass_first_device_err(id, &dev);
d8441ea2 SG	155	if (ret) {
	156	debug("No %s device for seq %d (%s)\n", uclass_get_name(id),
	157	seq, name);
	158	return ret;
	159	}
	160	/* The device should be be the last one registered */
	161	sdev = list_empty(&devs.list) ? NULL :
	162	list_last_entry(&devs.list, struct stdio_dev, list);
	163	if (!sdev \|\| strcmp(sdev->name, name)) {
	164	debug("Device '%s' did not register with stdio as '%s'\n",
	165	dev->name, name);
	166	return -ENOENT;
	167	}
	168	*sdevp = sdev;
	169
	170	return 0;
	171	}
	172	#endif
	173
ab29a34a	174	struct stdio_dev stdio_get_by_name(const char name)
c1de7a6d JCPV	175	{
c1de7a6d JCPV	176	struct list_head *pos;
d8441ea2	177	struct stdio_dev *sdev;
c1de7a6d	178
ab29a34a	179	if (!name)
c1de7a6d JCPV	180	return NULL;
	181
	182	list_for_each(pos, &(devs.list)) {
d8441ea2 SG	183	sdev = list_entry(pos, struct stdio_dev, list);
	184	if (strcmp(sdev->name, name) == 0)
	185	return sdev;
c1de7a6d	186	}
d8441ea2 SG	187	#ifdef CONFIG_DM_VIDEO
	188	/*
	189	* We did not find a suitable stdio device. If there is a video
	190	* driver with a name starting with 'vidconsole', we can try probing
	191	* that in the hope that it will produce the required stdio device.
	192	*
	193	* This function is sometimes called with the entire value of
	194	* 'stdout', which may include a list of devices separate by commas.
	195	* Obviously this is not going to work, so we ignore that case. The
	196	* call path in that case is console_init_r() -> search_device() ->
	197	* stdio_get_by_name().
	198	*/
	199	if (!strncmp(name, "vidconsole", 10) && !strchr(name, ',') &&
	200	!stdio_probe_device(name, UCLASS_VIDEO, &sdev))
	201	return sdev;
	202	#endif
c1de7a6d JCPV	203
	204	return NULL;
	205	}
	206
52cb4d4f	207	struct stdio_dev* stdio_clone(struct stdio_dev *dev)
628ffd73	208	{
52cb4d4f	209	struct stdio_dev *_dev;
628ffd73 JCPV	210
	211	if(!dev)
	212	return NULL;
	213
52cb4d4f	214	_dev = calloc(1, sizeof(struct stdio_dev));
628ffd73 JCPV	215
	216	if(!_dev)
	217	return NULL;
	218
52cb4d4f	219	memcpy(_dev, dev, sizeof(struct stdio_dev));
628ffd73 JCPV	220
	221	return _dev;
	222	}
91d3256c	223
d97143a6	224	int stdio_register_dev(struct stdio_dev dev, struct stdio_dev *devp)
91d3256c	225	{
52cb4d4f	226	struct stdio_dev *_dev;
628ffd73	227
52cb4d4f	228	_dev = stdio_clone(dev);
628ffd73	229	if(!_dev)
d97143a6	230	return -ENODEV;
3e3c026e	231	list_add_tail(&(_dev->list), &(devs.list));
d97143a6 SG	232	if (devp)
	233	*devp = _dev;
	234
91d3256c WD	235	return 0;
	236	}
	237
d97143a6 SG	238	int stdio_register(struct stdio_dev *dev)
	239	{
	240	return stdio_register_dev(dev, NULL);
	241	}
	242
91d3256c WD	243	/* deregister the device "devname".
	244	* returns 0 if success, -1 if device is assigned and 1 if devname not found
	245	*/
869588de	246	#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
32d01926	247	int stdio_deregister_dev(struct stdio_dev *dev, int force)
91d3256c	248	{
c1de7a6d JCPV	249	int l;
c1de7a6d JCPV	250	struct list_head *pos;
03bf22f5	251	char temp_names[3][16];
91d3256c	252
91d3256c WD	253	/* get stdio devices (ListRemoveItem changes the dev list) */
	254	for (l=0 ; l< MAX_FILES; l++) {
	255	if (stdio_devices[l] == dev) {
32d01926 HG	256	if (force) {
	257	strcpy(temp_names[l], "nulldev");
	258	continue;
	259	}
91d3256c WD	260	/* Device is assigned -> report error */
	261	return -1;
	262	}
	263	memcpy (&temp_names[l][0],
	264	stdio_devices[l]->name,
03bf22f5	265	sizeof(temp_names[l]));
91d3256c	266	}
c1de7a6d JCPV	267
c1de7a6d JCPV	268	list_del(&(dev->list));
88274b6c	269	free(dev);
c1de7a6d	270
91d3256c	271	/* reassign Device list */
c1de7a6d	272	list_for_each(pos, &(devs.list)) {
52cb4d4f	273	dev = list_entry(pos, struct stdio_dev, list);
91d3256c	274	for (l=0 ; l< MAX_FILES; l++) {
c1de7a6d	275	if(strcmp(dev->name, temp_names[l]) == 0)
91d3256c	276	stdio_devices[l] = dev;
91d3256c WD	277	}
	278	}
	279	return 0;
	280	}
d97143a6	281
32d01926	282	int stdio_deregister(const char *devname, int force)
d97143a6 SG	283	{
	284	struct stdio_dev *dev;
	285
	286	dev = stdio_get_by_name(devname);
	287
	288	if (!dev) /* device not found */
	289	return -ENODEV;
	290
32d01926	291	return stdio_deregister_dev(dev, force);
d97143a6	292	}
869588de	293	#endif /* CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER) */
91d3256c	294
9fb02491	295	int stdio_init_tables(void)
91d3256c	296	{
2e5167cc	297	#if defined(CONFIG_NEEDS_MANUAL_RELOC)
521af04d	298	/* already relocated for current ARM implementation */
91d3256c	299	ulong relocation_offset = gd->reloc_off;
3595ac49	300	int i;
91d3256c WD	301
	302	/* relocate device name pointers */
	303	for (i = 0; i < (sizeof (stdio_names) / sizeof (char *)); ++i) {
	304	stdio_names[i] = (char *) (((ulong) stdio_names[i]) +
	305	relocation_offset);
	306	}
2e5167cc	307	#endif /* CONFIG_NEEDS_MANUAL_RELOC */
91d3256c WD	308
91d3256c WD	309	/* Initialize the list */
c1de7a6d	310	INIT_LIST_HEAD(&(devs.list));
91d3256c	311
9fb02491 SG	312	return 0;
	313	}
	314
	315	int stdio_add_devices(void)
	316	{
b206cd73 SG	317	#ifdef CONFIG_DM_KEYBOARD
	318	struct udevice *dev;
	319	struct uclass *uc;
	320	int ret;
	321
	322	/*
	323	* For now we probe all the devices here. At some point this should be
	324	* done only when the devices are required - e.g. we have a list of
	325	* input devices to start up in the stdin environment variable. That
	326	* work probably makes more sense when stdio itself is converted to
	327	* driver model.
	328	*
	329	* TODO(sjg@chromium.org): Convert changing uclass_first_device() etc.
	330	* to return the device even on error. Then we could use that here.
	331	*/
	332	ret = uclass_get(UCLASS_KEYBOARD, &uc);
	333	if (ret)
	334	return ret;
	335
	336	/* Don't report errors to the caller - assume that they are non-fatal */
	337	uclass_foreach_dev(dev, uc) {
	338	ret = device_probe(dev);
	339	if (ret)
	340	printf("Failed to probe keyboard '%s'\n", dev->name);
	341	}
	342	#endif
3f4978c7	343	#ifdef CONFIG_SYS_I2C
3f4978c7	344	i2c_init_all();
3f4978c7	345	#else
3f4978c7	346	#endif
e3b81c1c	347	#ifdef CONFIG_DM_VIDEO
d8441ea2 SG	348	/*
	349	* If the console setting is not in environment variables then
	350	* console_init_r() will not be calling iomux_doenv() (which calls
	351	* search_device()). So we will not dynamically add devices by
	352	* calling stdio_probe_device().
	353	*
	354	* So just probe all video devices now so that whichever one is
	355	* required will be available.
	356	*/
	357	#ifndef CONFIG_SYS_CONSOLE_IS_IN_ENV
e3b81c1c	358	struct udevice *vdev;
35a1f0df SG	359	# ifndef CONFIG_DM_KEYBOARD
	360	int ret;
	361	# endif
e3b81c1c SG	362
	363	for (ret = uclass_first_device(UCLASS_VIDEO, &vdev);
	364	vdev;
	365	ret = uclass_next_device(&vdev))
	366	;
	367	if (ret)
	368	printf("%s: Video device failed (ret=%d)\n", __func__, ret);
d8441ea2	369	#endif /* !CONFIG_SYS_CONSOLE_IS_IN_ENV */
e3b81c1c SG	370	#else
e3b81c1c SG	371	# if defined(CONFIG_LCD)
91d3256c	372	drv_lcd_init ();
e3b81c1c SG	373	# endif
e3b81c1c SG	374	# if defined(CONFIG_VIDEO) \|\| defined(CONFIG_CFB_CONSOLE)
91d3256c	375	drv_video_init ();
e3b81c1c SG	376	# endif
e3b81c1c SG	377	#endif /* CONFIG_DM_VIDEO */
b206cd73	378	#if defined(CONFIG_KEYBOARD) && !defined(CONFIG_DM_KEYBOARD)
682011ff	379	drv_keyboard_init ();
91d3256c WD	380	#endif
91d3256c WD	381	drv_system_init ();
52cb4d4f	382	serial_stdio_init ();
232c150a WD	383	#ifdef CONFIG_USB_TTY
	384	drv_usbtty_init ();
	385	#endif
68ceb29e WD	386	#ifdef CONFIG_NETCONSOLE
	387	drv_nc_init ();
	388	#endif
36ea8e9a MF	389	#ifdef CONFIG_JTAG_CONSOLE
	390	drv_jtag_console_init ();
	391	#endif
98ab435f VB	392	#ifdef CONFIG_CBMEM_CONSOLE
	393	cbmemc_init();
	394	#endif
9fb02491 SG	395
	396	return 0;
	397	}
	398
	399	int stdio_init(void)
	400	{
	401	stdio_init_tables();
	402	stdio_add_devices();
	403
	404	return 0;
91d3256c	405	}