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

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2009 Sergey Kubushyn <[email protected]>
 *
 * Changes for multibus/multiadapter I2C support.
 *
 * (C) Copyright 2000
 * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), [email protected]
 */

#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([email protected]): 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([email protected]): 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
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
91d3256c	2	/*
3f4978c7 HS	3	* Copyright (C) 2009 Sergey Kubushyn <[email protected]>
	4	*
	5	* Changes for multibus/multiadapter I2C support.
	6	*
91d3256c WD	7	* (C) Copyright 2000
91d3256c WD	8	* Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), [email protected]
91d3256c WD	9	*/
	10
	11	#include <config.h>
	12	#include <common.h>
b206cd73	13	#include <dm.h>
d97143a6	14	#include <errno.h>
91d3256c WD	15	#include <stdarg.h>
91d3256c WD	16	#include <malloc.h>
52cb4d4f	17	#include <stdio_dev.h>
281e00a3	18	#include <serial.h>
ea818dbb	19
69153988	20	#if defined(CONFIG_SYS_I2C)
91d3256c	21	#include <i2c.h>
7f6c2cbc	22	#endif
91d3256c	23
b206cd73 SG	24	#include <dm/device-internal.h>
b206cd73 SG	25
d87080b7 WD	26	DECLARE_GLOBAL_DATA_PTR;
d87080b7 WD	27
52cb4d4f JCPV	28	static struct stdio_dev devs;
52cb4d4f JCPV	29	struct stdio_dev *stdio_devices[] = { NULL, NULL, NULL };
91d3256c WD	30	char *stdio_names[MAX_FILES] = { "stdin", "stdout", "stderr" };
91d3256c WD	31
6d0f6bcf JCPV	32	#if defined(CONFIG_SPLASH_SCREEN) && !defined(CONFIG_SYS_DEVICE_NULLDEV)
6d0f6bcf JCPV	33	#define CONFIG_SYS_DEVICE_NULLDEV 1
d791b1dc WD	34	#endif
d791b1dc WD	35
869588de	36	#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
32d01926 HG	37	#define CONFIG_SYS_DEVICE_NULLDEV 1
32d01926 HG	38	#endif
d791b1dc	39
6d0f6bcf	40	#ifdef CONFIG_SYS_DEVICE_NULLDEV
654f8d0f	41	static void nulldev_putc(struct stdio_dev *dev, const char c)
91d3256c	42	{
c1de7a6d	43	/* nulldev is empty! */
91d3256c WD	44	}
91d3256c WD	45
654f8d0f	46	static void nulldev_puts(struct stdio_dev dev, const char s)
91d3256c	47	{
c1de7a6d	48	/* nulldev is empty! */
91d3256c WD	49	}
91d3256c WD	50
654f8d0f	51	static int nulldev_input(struct stdio_dev *dev)
91d3256c	52	{
c1de7a6d JCPV	53	/* nulldev is empty! */
c1de7a6d JCPV	54	return 0;
91d3256c WD	55	}
	56	#endif
	57
654f8d0f	58	static void stdio_serial_putc(struct stdio_dev *dev, const char c)
709ea543 SG	59	{
	60	serial_putc(c);
	61	}
	62
654f8d0f	63	static void stdio_serial_puts(struct stdio_dev dev, const char s)
709ea543 SG	64	{
	65	serial_puts(s);
	66	}
	67
654f8d0f	68	static int stdio_serial_getc(struct stdio_dev *dev)
709ea543 SG	69	{
	70	return serial_getc();
	71	}
	72
654f8d0f	73	static int stdio_serial_tstc(struct stdio_dev *dev)
709ea543 SG	74	{
	75	return serial_tstc();
	76	}
	77
91d3256c WD	78	/**************************************************************************
	79	* SYSTEM DRIVERS
	80	**************************************************************************
	81	*/
	82
	83	static void drv_system_init (void)
	84	{
52cb4d4f	85	struct stdio_dev dev;
91d3256c WD	86
	87	memset (&dev, 0, sizeof (dev));
	88
	89	strcpy (dev.name, "serial");
1caf934a	90	dev.flags = DEV_FLAGS_OUTPUT \| DEV_FLAGS_INPUT;
709ea543 SG	91	dev.putc = stdio_serial_putc;
	92	dev.puts = stdio_serial_puts;
	93	dev.getc = stdio_serial_getc;
	94	dev.tstc = stdio_serial_tstc;
52cb4d4f	95	stdio_register (&dev);
91d3256c	96
6d0f6bcf	97	#ifdef CONFIG_SYS_DEVICE_NULLDEV
91d3256c WD	98	memset (&dev, 0, sizeof (dev));
	99
	100	strcpy (dev.name, "nulldev");
1caf934a	101	dev.flags = DEV_FLAGS_OUTPUT \| DEV_FLAGS_INPUT;
91d3256c WD	102	dev.putc = nulldev_putc;
	103	dev.puts = nulldev_puts;
	104	dev.getc = nulldev_input;
	105	dev.tstc = nulldev_input;
	106
52cb4d4f	107	stdio_register (&dev);
91d3256c WD	108	#endif
	109	}
	110
	111	/**************************************************************************
	112	* DEVICES
	113	**************************************************************************
	114	*/
52cb4d4f	115	struct list_head* stdio_get_list(void)
c1de7a6d JCPV	116	{
	117	return &(devs.list);
	118	}
	119
d8441ea2 SG	120	#ifdef CONFIG_DM_VIDEO
	121	/**
	122	* stdio_probe_device() - Find a device which provides the given stdio device
	123	*
	124	* This looks for a device of the given uclass which provides a particular
	125	* stdio device. It is currently really only useful for UCLASS_VIDEO.
	126	*
	127	* Ultimately we want to be able to probe a device by its stdio name. At
	128	* present devices register in their probe function (for video devices this
	129	* is done in vidconsole_post_probe()) and we don't know what name they will
	130	* use until they do so.
	131	* TODO([email protected]): We should be able to determine the name before
	132	* probing, and probe the required device.
	133	*
	134	* @name: stdio device name (e.g. "vidconsole")
	135	* id: Uclass ID of device to look for (e.g. UCLASS_VIDEO)
	136	* @sdevp: Returns stdout device, if found, else NULL
	137	* @return 0 if found, -ENOENT if no device found with that name, other -ve
	138	* on other error
	139	*/
	140	static int stdio_probe_device(const char *name, enum uclass_id id,
	141	struct stdio_dev **sdevp)
	142	{
	143	struct stdio_dev *sdev;
	144	struct udevice *dev;
	145	int seq, ret;
	146
	147	*sdevp = NULL;
	148	seq = trailing_strtoln(name, NULL);
	149	if (seq == -1)
d844efec SG	150	seq = 0;
	151	ret = uclass_get_device_by_seq(id, seq, &dev);
	152	if (ret == -ENODEV)
d8441ea2	153	ret = uclass_first_device_err(id, &dev);
d8441ea2 SG	154	if (ret) {
	155	debug("No %s device for seq %d (%s)\n", uclass_get_name(id),
	156	seq, name);
	157	return ret;
	158	}
	159	/* The device should be be the last one registered */
	160	sdev = list_empty(&devs.list) ? NULL :
	161	list_last_entry(&devs.list, struct stdio_dev, list);
	162	if (!sdev \|\| strcmp(sdev->name, name)) {
	163	debug("Device '%s' did not register with stdio as '%s'\n",
	164	dev->name, name);
	165	return -ENOENT;
	166	}
	167	*sdevp = sdev;
	168
	169	return 0;
	170	}
	171	#endif
	172
ab29a34a	173	struct stdio_dev stdio_get_by_name(const char name)
c1de7a6d JCPV	174	{
c1de7a6d JCPV	175	struct list_head *pos;
d8441ea2	176	struct stdio_dev *sdev;
c1de7a6d	177
ab29a34a	178	if (!name)
c1de7a6d JCPV	179	return NULL;
	180
	181	list_for_each(pos, &(devs.list)) {
d8441ea2 SG	182	sdev = list_entry(pos, struct stdio_dev, list);
	183	if (strcmp(sdev->name, name) == 0)
	184	return sdev;
c1de7a6d	185	}
d8441ea2 SG	186	#ifdef CONFIG_DM_VIDEO
	187	/*
	188	* We did not find a suitable stdio device. If there is a video
	189	* driver with a name starting with 'vidconsole', we can try probing
	190	* that in the hope that it will produce the required stdio device.
	191	*
	192	* This function is sometimes called with the entire value of
	193	* 'stdout', which may include a list of devices separate by commas.
	194	* Obviously this is not going to work, so we ignore that case. The
	195	* call path in that case is console_init_r() -> search_device() ->
	196	* stdio_get_by_name().
	197	*/
	198	if (!strncmp(name, "vidconsole", 10) && !strchr(name, ',') &&
	199	!stdio_probe_device(name, UCLASS_VIDEO, &sdev))
	200	return sdev;
	201	#endif
c1de7a6d JCPV	202
	203	return NULL;
	204	}
	205
52cb4d4f	206	struct stdio_dev* stdio_clone(struct stdio_dev *dev)
628ffd73	207	{
52cb4d4f	208	struct stdio_dev *_dev;
628ffd73 JCPV	209
	210	if(!dev)
	211	return NULL;
	212
52cb4d4f	213	_dev = calloc(1, sizeof(struct stdio_dev));
628ffd73 JCPV	214
	215	if(!_dev)
	216	return NULL;
	217
52cb4d4f	218	memcpy(_dev, dev, sizeof(struct stdio_dev));
628ffd73 JCPV	219
	220	return _dev;
	221	}
91d3256c	222
d97143a6	223	int stdio_register_dev(struct stdio_dev dev, struct stdio_dev *devp)
91d3256c	224	{
52cb4d4f	225	struct stdio_dev *_dev;
628ffd73	226
52cb4d4f	227	_dev = stdio_clone(dev);
628ffd73	228	if(!_dev)
d97143a6	229	return -ENODEV;
3e3c026e	230	list_add_tail(&(_dev->list), &(devs.list));
d97143a6 SG	231	if (devp)
	232	*devp = _dev;
	233
91d3256c WD	234	return 0;
	235	}
	236
d97143a6 SG	237	int stdio_register(struct stdio_dev *dev)
	238	{
	239	return stdio_register_dev(dev, NULL);
	240	}
	241
91d3256c WD	242	/* deregister the device "devname".
	243	* returns 0 if success, -1 if device is assigned and 1 if devname not found
	244	*/
869588de	245	#if CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER)
32d01926	246	int stdio_deregister_dev(struct stdio_dev *dev, int force)
91d3256c	247	{
c1de7a6d JCPV	248	int l;
c1de7a6d JCPV	249	struct list_head *pos;
03bf22f5	250	char temp_names[3][16];
91d3256c	251
91d3256c WD	252	/* get stdio devices (ListRemoveItem changes the dev list) */
	253	for (l=0 ; l< MAX_FILES; l++) {
	254	if (stdio_devices[l] == dev) {
32d01926 HG	255	if (force) {
	256	strcpy(temp_names[l], "nulldev");
	257	continue;
	258	}
91d3256c WD	259	/* Device is assigned -> report error */
	260	return -1;
	261	}
	262	memcpy (&temp_names[l][0],
	263	stdio_devices[l]->name,
03bf22f5	264	sizeof(temp_names[l]));
91d3256c	265	}
c1de7a6d JCPV	266
c1de7a6d JCPV	267	list_del(&(dev->list));
88274b6c	268	free(dev);
c1de7a6d	269
91d3256c	270	/* reassign Device list */
c1de7a6d	271	list_for_each(pos, &(devs.list)) {
52cb4d4f	272	dev = list_entry(pos, struct stdio_dev, list);
91d3256c	273	for (l=0 ; l< MAX_FILES; l++) {
c1de7a6d	274	if(strcmp(dev->name, temp_names[l]) == 0)
91d3256c	275	stdio_devices[l] = dev;
91d3256c WD	276	}
	277	}
	278	return 0;
	279	}
d97143a6	280
32d01926	281	int stdio_deregister(const char *devname, int force)
d97143a6 SG	282	{
	283	struct stdio_dev *dev;
	284
	285	dev = stdio_get_by_name(devname);
	286
	287	if (!dev) /* device not found */
	288	return -ENODEV;
	289
32d01926	290	return stdio_deregister_dev(dev, force);
d97143a6	291	}
869588de	292	#endif /* CONFIG_IS_ENABLED(SYS_STDIO_DEREGISTER) */
91d3256c	293
9fb02491	294	int stdio_init_tables(void)
91d3256c	295	{
2e5167cc	296	#if defined(CONFIG_NEEDS_MANUAL_RELOC)
521af04d	297	/* already relocated for current ARM implementation */
91d3256c	298	ulong relocation_offset = gd->reloc_off;
3595ac49	299	int i;
91d3256c WD	300
	301	/* relocate device name pointers */
	302	for (i = 0; i < (sizeof (stdio_names) / sizeof (char *)); ++i) {
	303	stdio_names[i] = (char *) (((ulong) stdio_names[i]) +
	304	relocation_offset);
	305	}
2e5167cc	306	#endif /* CONFIG_NEEDS_MANUAL_RELOC */
91d3256c WD	307
91d3256c WD	308	/* Initialize the list */
c1de7a6d	309	INIT_LIST_HEAD(&(devs.list));
91d3256c	310
9fb02491 SG	311	return 0;
	312	}
	313
	314	int stdio_add_devices(void)
	315	{
b206cd73 SG	316	#ifdef CONFIG_DM_KEYBOARD
	317	struct udevice *dev;
	318	struct uclass *uc;
	319	int ret;
	320
	321	/*
	322	* For now we probe all the devices here. At some point this should be
	323	* done only when the devices are required - e.g. we have a list of
	324	* input devices to start up in the stdin environment variable. That
	325	* work probably makes more sense when stdio itself is converted to
	326	* driver model.
	327	*
	328	* TODO([email protected]): Convert changing uclass_first_device() etc.
	329	* to return the device even on error. Then we could use that here.
	330	*/
	331	ret = uclass_get(UCLASS_KEYBOARD, &uc);
	332	if (ret)
	333	return ret;
	334
	335	/* Don't report errors to the caller - assume that they are non-fatal */
	336	uclass_foreach_dev(dev, uc) {
	337	ret = device_probe(dev);
	338	if (ret)
	339	printf("Failed to probe keyboard '%s'\n", dev->name);
	340	}
	341	#endif
3f4978c7	342	#ifdef CONFIG_SYS_I2C
3f4978c7	343	i2c_init_all();
3f4978c7	344	#else
3f4978c7	345	#endif
e3b81c1c	346	#ifdef CONFIG_DM_VIDEO
d8441ea2 SG	347	/*
	348	* If the console setting is not in environment variables then
	349	* console_init_r() will not be calling iomux_doenv() (which calls
	350	* search_device()). So we will not dynamically add devices by
	351	* calling stdio_probe_device().
	352	*
	353	* So just probe all video devices now so that whichever one is
	354	* required will be available.
	355	*/
	356	#ifndef CONFIG_SYS_CONSOLE_IS_IN_ENV
e3b81c1c	357	struct udevice *vdev;
35a1f0df SG	358	# ifndef CONFIG_DM_KEYBOARD
	359	int ret;
	360	# endif
e3b81c1c SG	361
	362	for (ret = uclass_first_device(UCLASS_VIDEO, &vdev);
	363	vdev;
	364	ret = uclass_next_device(&vdev))
	365	;
	366	if (ret)
	367	printf("%s: Video device failed (ret=%d)\n", __func__, ret);
d8441ea2	368	#endif /* !CONFIG_SYS_CONSOLE_IS_IN_ENV */
e3b81c1c SG	369	#else
e3b81c1c SG	370	# if defined(CONFIG_LCD)
91d3256c	371	drv_lcd_init ();
e3b81c1c SG	372	# endif
e3b81c1c SG	373	# if defined(CONFIG_VIDEO) \|\| defined(CONFIG_CFB_CONSOLE)
91d3256c	374	drv_video_init ();
e3b81c1c SG	375	# endif
e3b81c1c SG	376	#endif /* CONFIG_DM_VIDEO */
b206cd73	377	#if defined(CONFIG_KEYBOARD) && !defined(CONFIG_DM_KEYBOARD)
682011ff	378	drv_keyboard_init ();
91d3256c WD	379	#endif
91d3256c WD	380	drv_system_init ();
52cb4d4f	381	serial_stdio_init ();
232c150a WD	382	#ifdef CONFIG_USB_TTY
	383	drv_usbtty_init ();
	384	#endif
68ceb29e WD	385	#ifdef CONFIG_NETCONSOLE
	386	drv_nc_init ();
	387	#endif
36ea8e9a MF	388	#ifdef CONFIG_JTAG_CONSOLE
	389	drv_jtag_console_init ();
	390	#endif
98ab435f VB	391	#ifdef CONFIG_CBMEM_CONSOLE
	392	cbmemc_init();
	393	#endif
9fb02491 SG	394
	395	return 0;
	396	}
	397
	398	int stdio_init(void)
	399	{
	400	stdio_init_tables();
	401	stdio_add_devices();
	402
	403	return 0;
91d3256c	404	}