Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 846 insertions, 0 deletions

diff --git a/qemu/roms/u-boot/common/console.c b/qemu/roms/u-boot/common/console.c
new file mode 100644
index 000000000..2dfb78888
--- /dev/null
+++ b/qemu/roms/u-boot/common/console.c
@@ -0,0 +1,846 @@
+/*
+ * (C) Copyright 2000
+ * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <stdarg.h>
+#include <malloc.h>
+#include <os.h>
+#include <serial.h>
+#include <stdio_dev.h>
+#include <exports.h>
+#include <environment.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static int on_console(const char *name, const char *value, enum env_op op,
+	int flags)
+{
+	int console = -1;
+
+	/* Check for console redirection */
+	if (strcmp(name, "stdin") == 0)
+		console = stdin;
+	else if (strcmp(name, "stdout") == 0)
+		console = stdout;
+	else if (strcmp(name, "stderr") == 0)
+		console = stderr;
+
+	/* if not actually setting a console variable, we don't care */
+	if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0)
+		return 0;
+
+	switch (op) {
+	case env_op_create:
+	case env_op_overwrite:
+
+#ifdef CONFIG_CONSOLE_MUX
+		if (iomux_doenv(console, value))
+			return 1;
+#else
+		/* Try assigning specified device */
+		if (console_assign(console, value) < 0)
+			return 1;
+#endif /* CONFIG_CONSOLE_MUX */
+		return 0;
+
+	case env_op_delete:
+		if ((flags & H_FORCE) == 0)
+			printf("Can't delete \"%s\"\n", name);
+		return 1;
+
+	default:
+		return 0;
+	}
+}
+U_BOOT_ENV_CALLBACK(console, on_console);
+
+#ifdef CONFIG_SILENT_CONSOLE
+static int on_silent(const char *name, const char *value, enum env_op op,
+	int flags)
+{
+#ifndef CONFIG_SILENT_CONSOLE_UPDATE_ON_SET
+	if (flags & H_INTERACTIVE)
+		return 0;
+#endif
+#ifndef CONFIG_SILENT_CONSOLE_UPDATE_ON_RELOC
+	if ((flags & H_INTERACTIVE) == 0)
+		return 0;
+#endif
+
+	if (value != NULL)
+		gd->flags |= GD_FLG_SILENT;
+	else
+		gd->flags &= ~GD_FLG_SILENT;
+
+	return 0;
+}
+U_BOOT_ENV_CALLBACK(silent, on_silent);
+#endif
+
+#ifdef CONFIG_SYS_CONSOLE_IS_IN_ENV
+/*
+ * if overwrite_console returns 1, the stdin, stderr and stdout
+ * are switched to the serial port, else the settings in the
+ * environment are used
+ */
+#ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
+extern int overwrite_console(void);
+#define OVERWRITE_CONSOLE overwrite_console()
+#else
+#define OVERWRITE_CONSOLE 0
+#endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
+
+#endif /* CONFIG_SYS_CONSOLE_IS_IN_ENV */
+
+static int console_setfile(int file, struct stdio_dev * dev)
+{
+	int error = 0;
+
+	if (dev == NULL)
+		return -1;
+
+	switch (file) {
+	case stdin:
+	case stdout:
+	case stderr:
+		/* Start new device */
+		if (dev->start) {
+			error = dev->start();
+			/* If it's not started dont use it */
+			if (error < 0)
+				break;
+		}
+
+		/* Assign the new device (leaving the existing one started) */
+		stdio_devices[file] = dev;
+
+		/*
+		 * Update monitor functions
+		 * (to use the console stuff by other applications)
+		 */
+		switch (file) {
+		case stdin:
+			gd->jt[XF_getc] = dev->getc;
+			gd->jt[XF_tstc] = dev->tstc;
+			break;
+		case stdout:
+			gd->jt[XF_putc] = dev->putc;
+			gd->jt[XF_puts] = dev->puts;
+			gd->jt[XF_printf] = printf;
+			break;
+		}
+		break;
+
+	default:		/* Invalid file ID */
+		error = -1;
+	}
+	return error;
+}
+
+#if defined(CONFIG_CONSOLE_MUX)
+/** Console I/O multiplexing *******************************************/
+
+static struct stdio_dev *tstcdev;
+struct stdio_dev **console_devices[MAX_FILES];
+int cd_count[MAX_FILES];
+
+/*
+ * This depends on tstc() always being called before getc().
+ * This is guaranteed to be true because this routine is called
+ * only from fgetc() which assures it.
+ * No attempt is made to demultiplex multiple input sources.
+ */
+static int console_getc(int file)
+{
+	unsigned char ret;
+
+	/* This is never called with testcdev == NULL */
+	ret = tstcdev->getc();
+	tstcdev = NULL;
+	return ret;
+}
+
+static int console_tstc(int file)
+{
+	int i, ret;
+	struct stdio_dev *dev;
+
+	disable_ctrlc(1);
+	for (i = 0; i < cd_count[file]; i++) {
+		dev = console_devices[file][i];
+		if (dev->tstc != NULL) {
+			ret = dev->tstc();
+			if (ret > 0) {
+				tstcdev = dev;
+				disable_ctrlc(0);
+				return ret;
+			}
+		}
+	}
+	disable_ctrlc(0);
+
+	return 0;
+}
+
+static void console_putc(int file, const char c)
+{
+	int i;
+	struct stdio_dev *dev;
+
+	for (i = 0; i < cd_count[file]; i++) {
+		dev = console_devices[file][i];
+		if (dev->putc != NULL)
+			dev->putc(c);
+	}
+}
+
+static void console_puts(int file, const char *s)
+{
+	int i;
+	struct stdio_dev *dev;
+
+	for (i = 0; i < cd_count[file]; i++) {
+		dev = console_devices[file][i];
+		if (dev->puts != NULL)
+			dev->puts(s);
+	}
+}
+
+static inline void console_printdevs(int file)
+{
+	iomux_printdevs(file);
+}
+
+static inline void console_doenv(int file, struct stdio_dev *dev)
+{
+	iomux_doenv(file, dev->name);
+}
+#else
+static inline int console_getc(int file)
+{
+	return stdio_devices[file]->getc();
+}
+
+static inline int console_tstc(int file)
+{
+	return stdio_devices[file]->tstc();
+}
+
+static inline void console_putc(int file, const char c)
+{
+	stdio_devices[file]->putc(c);
+}
+
+static inline void console_puts(int file, const char *s)
+{
+	stdio_devices[file]->puts(s);
+}
+
+static inline void console_printdevs(int file)
+{
+	printf("%s\n", stdio_devices[file]->name);
+}
+
+static inline void console_doenv(int file, struct stdio_dev *dev)
+{
+	console_setfile(file, dev);
+}
+#endif /* defined(CONFIG_CONSOLE_MUX) */
+
+/** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
+
+int serial_printf(const char *fmt, ...)
+{
+	va_list args;
+	uint i;
+	char printbuffer[CONFIG_SYS_PBSIZE];
+
+	va_start(args, fmt);
+
+	/* For this to work, printbuffer must be larger than
+	 * anything we ever want to print.
+	 */
+	i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
+	va_end(args);
+
+	serial_puts(printbuffer);
+	return i;
+}
+
+int fgetc(int file)
+{
+	if (file < MAX_FILES) {
+#if defined(CONFIG_CONSOLE_MUX)
+		/*
+		 * Effectively poll for input wherever it may be available.
+		 */
+		for (;;) {
+			/*
+			 * Upper layer may have already called tstc() so
+			 * check for that first.
+			 */
+			if (tstcdev != NULL)
+				return console_getc(file);
+			console_tstc(file);
+#ifdef CONFIG_WATCHDOG
+			/*
+			 * If the watchdog must be rate-limited then it should
+			 * already be handled in board-specific code.
+			 */
+			 udelay(1);
+#endif
+		}
+#else
+		return console_getc(file);
+#endif
+	}
+
+	return -1;
+}
+
+int ftstc(int file)
+{
+	if (file < MAX_FILES)
+		return console_tstc(file);
+
+	return -1;
+}
+
+void fputc(int file, const char c)
+{
+	if (file < MAX_FILES)
+		console_putc(file, c);
+}
+
+void fputs(int file, const char *s)
+{
+	if (file < MAX_FILES)
+		console_puts(file, s);
+}
+
+int fprintf(int file, const char *fmt, ...)
+{
+	va_list args;
+	uint i;
+	char printbuffer[CONFIG_SYS_PBSIZE];
+
+	va_start(args, fmt);
+
+	/* For this to work, printbuffer must be larger than
+	 * anything we ever want to print.
+	 */
+	i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
+	va_end(args);
+
+	/* Send to desired file */
+	fputs(file, printbuffer);
+	return i;
+}
+
+/** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
+
+int getc(void)
+{
+#ifdef CONFIG_DISABLE_CONSOLE
+	if (gd->flags & GD_FLG_DISABLE_CONSOLE)
+		return 0;
+#endif
+
+	if (!gd->have_console)
+		return 0;
+
+	if (gd->flags & GD_FLG_DEVINIT) {
+		/* Get from the standard input */
+		return fgetc(stdin);
+	}
+
+	/* Send directly to the handler */
+	return serial_getc();
+}
+
+int tstc(void)
+{
+#ifdef CONFIG_DISABLE_CONSOLE
+	if (gd->flags & GD_FLG_DISABLE_CONSOLE)
+		return 0;
+#endif
+
+	if (!gd->have_console)
+		return 0;
+
+	if (gd->flags & GD_FLG_DEVINIT) {
+		/* Test the standard input */
+		return ftstc(stdin);
+	}
+
+	/* Send directly to the handler */
+	return serial_tstc();
+}
+
+#ifdef CONFIG_PRE_CONSOLE_BUFFER
+#define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_PRE_CON_BUF_SZ)
+
+static void pre_console_putc(const char c)
+{
+	char *buffer = (char *)CONFIG_PRE_CON_BUF_ADDR;
+
+	buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c;
+}
+
+static void pre_console_puts(const char *s)
+{
+	while (*s)
+		pre_console_putc(*s++);
+}
+
+static void print_pre_console_buffer(void)
+{
+	unsigned long i = 0;
+	char *buffer = (char *)CONFIG_PRE_CON_BUF_ADDR;
+
+	if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ)
+		i = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ;
+
+	while (i < gd->precon_buf_idx)
+		putc(buffer[CIRC_BUF_IDX(i++)]);
+}
+#else
+static inline void pre_console_putc(const char c) {}
+static inline void pre_console_puts(const char *s) {}
+static inline void print_pre_console_buffer(void) {}
+#endif
+
+void putc(const char c)
+{
+#ifdef CONFIG_SANDBOX
+	if (!gd) {
+		os_putc(c);
+		return;
+	}
+#endif
+#ifdef CONFIG_SILENT_CONSOLE
+	if (gd->flags & GD_FLG_SILENT)
+		return;
+#endif
+
+#ifdef CONFIG_DISABLE_CONSOLE
+	if (gd->flags & GD_FLG_DISABLE_CONSOLE)
+		return;
+#endif
+
+	if (!gd->have_console)
+		return pre_console_putc(c);
+
+	if (gd->flags & GD_FLG_DEVINIT) {
+		/* Send to the standard output */
+		fputc(stdout, c);
+	} else {
+		/* Send directly to the handler */
+		serial_putc(c);
+	}
+}
+
+void puts(const char *s)
+{
+#ifdef CONFIG_SANDBOX
+	if (!gd) {
+		os_puts(s);
+		return;
+	}
+#endif
+
+#ifdef CONFIG_SILENT_CONSOLE
+	if (gd->flags & GD_FLG_SILENT)
+		return;
+#endif
+
+#ifdef CONFIG_DISABLE_CONSOLE
+	if (gd->flags & GD_FLG_DISABLE_CONSOLE)
+		return;
+#endif
+
+	if (!gd->have_console)
+		return pre_console_puts(s);
+
+	if (gd->flags & GD_FLG_DEVINIT) {
+		/* Send to the standard output */
+		fputs(stdout, s);
+	} else {
+		/* Send directly to the handler */
+		serial_puts(s);
+	}
+}
+
+int printf(const char *fmt, ...)
+{
+	va_list args;
+	uint i;
+	char printbuffer[CONFIG_SYS_PBSIZE];
+
+#if !defined(CONFIG_SANDBOX) && !defined(CONFIG_PRE_CONSOLE_BUFFER)
+	if (!gd->have_console)
+		return 0;
+#endif
+
+	va_start(args, fmt);
+
+	/* For this to work, printbuffer must be larger than
+	 * anything we ever want to print.
+	 */
+	i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
+	va_end(args);
+
+	/* Print the string */
+	puts(printbuffer);
+	return i;
+}
+
+int vprintf(const char *fmt, va_list args)
+{
+	uint i;
+	char printbuffer[CONFIG_SYS_PBSIZE];
+
+#ifndef CONFIG_PRE_CONSOLE_BUFFER
+	if (!gd->have_console)
+		return 0;
+#endif
+
+	/* For this to work, printbuffer must be larger than
+	 * anything we ever want to print.
+	 */
+	i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
+
+	/* Print the string */
+	puts(printbuffer);
+	return i;
+}
+
+/* test if ctrl-c was pressed */
+static int ctrlc_disabled = 0;	/* see disable_ctrl() */
+static int ctrlc_was_pressed = 0;
+int ctrlc(void)
+{
+	if (!ctrlc_disabled && gd->have_console) {
+		if (tstc()) {
+			switch (getc()) {
+			case 0x03:		/* ^C - Control C */
+				ctrlc_was_pressed = 1;
+				return 1;
+			default:
+				break;
+			}
+		}
+	}
+	return 0;
+}
+
+/* pass 1 to disable ctrlc() checking, 0 to enable.
+ * returns previous state
+ */
+int disable_ctrlc(int disable)
+{
+	int prev = ctrlc_disabled;	/* save previous state */
+
+	ctrlc_disabled = disable;
+	return prev;
+}
+
+int had_ctrlc (void)
+{
+	return ctrlc_was_pressed;
+}
+
+void clear_ctrlc(void)
+{
+	ctrlc_was_pressed = 0;
+}
+
+#ifdef CONFIG_MODEM_SUPPORT_DEBUG
+char	screen[1024];
+char *cursor = screen;
+int once = 0;
+inline void dbg(const char *fmt, ...)
+{
+	va_list	args;
+	uint	i;
+	char	printbuffer[CONFIG_SYS_PBSIZE];
+
+	if (!once) {
+		memset(screen, 0, sizeof(screen));
+		once++;
+	}
+
+	va_start(args, fmt);
+
+	/* For this to work, printbuffer must be larger than
+	 * anything we ever want to print.
+	 */
+	i = vsnprintf(printbuffer, sizeof(printbuffer), fmt, args);
+	va_end(args);
+
+	if ((screen + sizeof(screen) - 1 - cursor)
+	    < strlen(printbuffer) + 1) {
+		memset(screen, 0, sizeof(screen));
+		cursor = screen;
+	}
+	sprintf(cursor, printbuffer);
+	cursor += strlen(printbuffer);
+
+}
+#else
+inline void dbg(const char *fmt, ...)
+{
+}
+#endif
+
+/** U-Boot INIT FUNCTIONS *************************************************/
+
+struct stdio_dev *search_device(int flags, const char *name)
+{
+	struct stdio_dev *dev;
+
+	dev = stdio_get_by_name(name);
+
+	if (dev && (dev->flags & flags))
+		return dev;
+
+	return NULL;
+}
+
+int console_assign(int file, const char *devname)
+{
+	int flag;
+	struct stdio_dev *dev;
+
+	/* Check for valid file */
+	switch (file) {
+	case stdin:
+		flag = DEV_FLAGS_INPUT;
+		break;
+	case stdout:
+	case stderr:
+		flag = DEV_FLAGS_OUTPUT;
+		break;
+	default:
+		return -1;
+	}
+
+	/* Check for valid device name */
+
+	dev = search_device(flag, devname);
+
+	if (dev)
+		return console_setfile(file, dev);
+
+	return -1;
+}
+
+/* Called before relocation - use serial functions */
+int console_init_f(void)
+{
+	gd->have_console = 1;
+
+#ifdef CONFIG_SILENT_CONSOLE
+	if (getenv("silent") != NULL)
+		gd->flags |= GD_FLG_SILENT;
+#endif
+
+	print_pre_console_buffer();
+
+	return 0;
+}
+
+void stdio_print_current_devices(void)
+{
+	/* Print information */
+	puts("In:    ");
+	if (stdio_devices[stdin] == NULL) {
+		puts("No input devices available!\n");
+	} else {
+		printf ("%s\n", stdio_devices[stdin]->name);
+	}
+
+	puts("Out:   ");
+	if (stdio_devices[stdout] == NULL) {
+		puts("No output devices available!\n");
+	} else {
+		printf ("%s\n", stdio_devices[stdout]->name);
+	}
+
+	puts("Err:   ");
+	if (stdio_devices[stderr] == NULL) {
+		puts("No error devices available!\n");
+	} else {
+		printf ("%s\n", stdio_devices[stderr]->name);
+	}
+}
+
+#ifdef CONFIG_SYS_CONSOLE_IS_IN_ENV
+/* Called after the relocation - use desired console functions */
+int console_init_r(void)
+{
+	char *stdinname, *stdoutname, *stderrname;
+	struct stdio_dev *inputdev = NULL, *outputdev = NULL, *errdev = NULL;
+#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
+	int i;
+#endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
+#ifdef CONFIG_CONSOLE_MUX
+	int iomux_err = 0;
+#endif
+
+	/* set default handlers at first */
+	gd->jt[XF_getc] = serial_getc;
+	gd->jt[XF_tstc] = serial_tstc;
+	gd->jt[XF_putc] = serial_putc;
+	gd->jt[XF_puts] = serial_puts;
+	gd->jt[XF_printf] = serial_printf;
+
+	/* stdin stdout and stderr are in environment */
+	/* scan for it */
+	stdinname  = getenv("stdin");
+	stdoutname = getenv("stdout");
+	stderrname = getenv("stderr");
+
+	if (OVERWRITE_CONSOLE == 0) {	/* if not overwritten by config switch */
+		inputdev  = search_device(DEV_FLAGS_INPUT,  stdinname);
+		outputdev = search_device(DEV_FLAGS_OUTPUT, stdoutname);
+		errdev    = search_device(DEV_FLAGS_OUTPUT, stderrname);
+#ifdef CONFIG_CONSOLE_MUX
+		iomux_err = iomux_doenv(stdin, stdinname);
+		iomux_err += iomux_doenv(stdout, stdoutname);
+		iomux_err += iomux_doenv(stderr, stderrname);
+		if (!iomux_err)
+			/* Successful, so skip all the code below. */
+			goto done;
+#endif
+	}
+	/* if the devices are overwritten or not found, use default device */
+	if (inputdev == NULL) {
+		inputdev  = search_device(DEV_FLAGS_INPUT,  "serial");
+	}
+	if (outputdev == NULL) {
+		outputdev = search_device(DEV_FLAGS_OUTPUT, "serial");
+	}
+	if (errdev == NULL) {
+		errdev    = search_device(DEV_FLAGS_OUTPUT, "serial");
+	}
+	/* Initializes output console first */
+	if (outputdev != NULL) {
+		/* need to set a console if not done above. */
+		console_doenv(stdout, outputdev);
+	}
+	if (errdev != NULL) {
+		/* need to set a console if not done above. */
+		console_doenv(stderr, errdev);
+	}
+	if (inputdev != NULL) {
+		/* need to set a console if not done above. */
+		console_doenv(stdin, inputdev);
+	}
+
+#ifdef CONFIG_CONSOLE_MUX
+done:
+#endif
+
+#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
+	stdio_print_current_devices();
+#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
+
+#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
+	/* set the environment variables (will overwrite previous env settings) */
+	for (i = 0; i < 3; i++) {
+		setenv(stdio_names[i], stdio_devices[i]->name);
+	}
+#endif /* CONFIG_SYS_CONSOLE_ENV_OVERWRITE */
+
+	gd->flags |= GD_FLG_DEVINIT;	/* device initialization completed */
+
+#if 0
+	/* If nothing usable installed, use only the initial console */
+	if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
+		return 0;
+#endif
+	return 0;
+}
+
+#else /* CONFIG_SYS_CONSOLE_IS_IN_ENV */
+
+/* Called after the relocation - use desired console functions */
+int console_init_r(void)
+{
+	struct stdio_dev *inputdev = NULL, *outputdev = NULL;
+	int i;
+	struct list_head *list = stdio_get_list();
+	struct list_head *pos;
+	struct stdio_dev *dev;
+
+#ifdef CONFIG_SPLASH_SCREEN
+	/*
+	 * suppress all output if splash screen is enabled and we have
+	 * a bmp to display. We redirect the output from frame buffer
+	 * console to serial console in this case or suppress it if
+	 * "silent" mode was requested.
+	 */
+	if (getenv("splashimage") != NULL) {
+		if (!(gd->flags & GD_FLG_SILENT))
+			outputdev = search_device (DEV_FLAGS_OUTPUT, "serial");
+	}
+#endif
+
+	/* Scan devices looking for input and output devices */
+	list_for_each(pos, list) {
+		dev = list_entry(pos, struct stdio_dev, list);
+
+		if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
+			inputdev = dev;
+		}
+		if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
+			outputdev = dev;
+		}
+		if(inputdev && outputdev)
+			break;
+	}
+
+	/* Initializes output console first */
+	if (outputdev != NULL) {
+		console_setfile(stdout, outputdev);
+		console_setfile(stderr, outputdev);
+#ifdef CONFIG_CONSOLE_MUX
+		console_devices[stdout][0] = outputdev;
+		console_devices[stderr][0] = outputdev;
+#endif
+	}
+
+	/* Initializes input console */
+	if (inputdev != NULL) {
+		console_setfile(stdin, inputdev);
+#ifdef CONFIG_CONSOLE_MUX
+		console_devices[stdin][0] = inputdev;
+#endif
+	}
+
+#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
+	stdio_print_current_devices();
+#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
+
+	/* Setting environment variables */
+	for (i = 0; i < 3; i++) {
+		setenv(stdio_names[i], stdio_devices[i]->name);
+	}
+
+	gd->flags |= GD_FLG_DEVINIT;	/* device initialization completed */
+
+#if 0
+	/* If nothing usable installed, use only the initial console */
+	if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
+		return 0;
+#endif
+
+	return 0;
+}
+
+#endif /* CONFIG_SYS_CONSOLE_IS_IN_ENV */