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SmartAudio/lichee/brandy/u-boot-2014.07/common/console.c

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/*
* (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;
#define MAX_CPU_CNT 4
#define CPU0_BUF_SIZE (512<<20)
#define CPU1_BUF_SIZE (256<<20)
#define CPU2_BUF_SIZE (128<<20)
#define CPU3_BUF_SIZE (128<<20)
typedef struct __debug_info
{
u32 debug_addr;
u32 msg_len;
u32 max_len;
}sunxi_debug_info;
__attribute__((section(".data")))
sunxi_debug_info debug_info[4];
__attribute__((section(".data")))
int debug_level = LOG_LEVEL_INFO;
int set_sunxi_debug_level(int level)
{
debug_level = level;
return 0;
}
int get_sunxi_debug_level(void)
{
return debug_level;
}
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);
}
}
#if defined(CONFIG_SUNXI_MULITCORE_BOOT)
extern unsigned int *p_spin_lock_uart;
/* get cpsr state */
int mode_is_svc(void)
{
unsigned long temp = 0;
__asm__ __volatile__("mrs %0, cpsr\n"
: "=r" (temp)
:
: "memory");
if((temp&0x1f) == 0x13)
{
return 1;
}
return 0;
}
#endif
void puts(const char *s)
{
#if defined(CONFIG_SUNXI_MULITCORE_BOOT)
/*to avoid dead lock when call printf in irq funtion */
if( p_spin_lock_uart && mode_is_svc())
cpu_spin_lock(p_spin_lock_uart);
#endif
#ifdef CONFIG_SANDBOX
if (!gd) {
os_puts(s);
goto __END;
}
#endif
#ifdef CONFIG_SILENT_CONSOLE
if (gd->flags & GD_FLG_SILENT)
goto __END;
#endif
#ifdef CONFIG_DISABLE_CONSOLE
if (gd->flags & GD_FLG_DISABLE_CONSOLE)
goto __END;
#endif
if (!gd->have_console)
{
pre_console_puts(s);
goto __END;
}
if (gd->flags & GD_FLG_DEVINIT) {
/* Send to the standard output */
fputs(stdout, s);
} else {
/* Send directly to the handler */
serial_puts(s);
}
__END:
#if defined(CONFIG_SUNXI_MULITCORE_BOOT)
/*to avoid dead lock when call printf in irq funtion */
if(p_spin_lock_uart && mode_is_svc())
cpu_spin_unlock(p_spin_lock_uart);
#endif
return;
}
int display_time(void)
{
uint i,msecond;
char printbuffer_with_timestamp[CONFIG_SYS_PBSIZE];
/* For this to work, printbuffer must be larger than
* anything we ever want to print.
*/
msecond=get_timer_masked();
i = sprintf(printbuffer_with_timestamp,"[%7u.%03u]",msecond/1000,msecond%1000);
/* Print the string */
puts(printbuffer_with_timestamp);
return i;
}
int uprintf(int log_level, const char *fmt, ...)
{
va_list args;
uint i,msecond;
char printbuffer[CONFIG_SYS_PBSIZE-12];
char printbuffer_with_timestamp[CONFIG_SYS_PBSIZE];
int cpu = get_core_pos();
if (log_level > debug_level) {
return 0;
}
va_start(args, fmt);
/* For this to work, printbuffer must be larger than
* anything we ever want to print.
*/
msecond=get_timer_masked();
vsprintf(printbuffer, fmt, args);
if(cpu)
i = sprintf(printbuffer_with_timestamp,"[%u.%03u][cpu%d]%s",msecond/1000,msecond%1000,cpu,printbuffer);
else
i = sprintf(printbuffer_with_timestamp,"[%u.%03u]%s",msecond/1000,msecond%1000,printbuffer);
va_end(args);
/* Print the string */
if (log_level <= debug_level) {
puts(printbuffer_with_timestamp);
}
return i;
}
int printf(const char *fmt, ...)
{
va_list args;
uint i = 0,j = 0;
int cpu = get_core_pos();
char printbuffer[CONFIG_SYS_PBSIZE];
char* tmp_debug_buf = NULL;
#if !defined(CONFIG_SANDBOX) && !defined(CONFIG_PRE_CONSOLE_BUFFER)
if (!gd->have_console)
return 0;
#endif
if (debug_level)
{
tmp_debug_buf = printbuffer;
}
else
{
u32 avaiable_len = debug_info[cpu].max_len - debug_info[cpu].msg_len;
if(avaiable_len < CONFIG_SYS_PBSIZE)
{
/* buffer full, restart again */
debug_info[cpu].msg_len = 0;
}
tmp_debug_buf = (char*)(debug_info[cpu].debug_addr + debug_info[cpu].msg_len);
}
if (cpu)
{
i = sprintf(tmp_debug_buf,"[cpu%d]",cpu);
}
va_start(args, fmt);
/* For this to work, printbuffer must be larger than
* anything we ever want to print.
*/
j = vsprintf(tmp_debug_buf+i, fmt, args);
va_end(args);
if (debug_level)
{
puts(tmp_debug_buf);
}
else
{
debug_info[cpu].msg_len += (i+j);
}
return i;
}
int tick_printf(const char *fmt, ...)
{
va_list args;
uint i,msecond;
char printbuffer[CONFIG_SYS_PBSIZE-12];
char printbuffer_with_timestamp[CONFIG_SYS_PBSIZE];
if (!debug_level)
{
return 0;
}
va_start(args, fmt);
/* For this to work, printbuffer must be larger than
* anything we ever want to print.
*/
msecond=get_timer_masked();
vsprintf(printbuffer, fmt, args);
i = sprintf(printbuffer_with_timestamp,"[%u.%03u]%s",msecond/1000,msecond%1000,printbuffer);
va_end(args);
/* Print the string */
puts(printbuffer_with_timestamp);
return i;
}
int sunxi_printf_all(void)
{
puts((char*)debug_info[0].debug_addr);
puts((char*)debug_info[1].debug_addr);
puts((char*)debug_info[2].debug_addr);
return 0;
}
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;
}
/* Reads user's confirmation.
Returns 1 if user's input is "y", "Y", "yes" or "YES"
*/
int confirm_yesno(void)
{
int i;
char str_input[5];
/* Flush input */
while (tstc())
getc();
i = 0;
while (i < sizeof(str_input)) {
str_input[i] = getc();
putc(str_input[i]);
if (str_input[i] == '\r')
break;
i++;
}
putc('\n');
if (strncmp(str_input, "y\r", 2) == 0 ||
strncmp(str_input, "Y\r", 2) == 0 ||
strncmp(str_input, "yes\r", 4) == 0 ||
strncmp(str_input, "YES\r", 4) == 0)
return 1;
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;
int dram_size;
uint debug_buf_base= 0;
uint offset = 0, i = 0;
uint cpu_buf_size[MAX_CPU_CNT] = \
{CPU0_BUF_SIZE,CPU1_BUF_SIZE,CPU2_BUF_SIZE,CPU3_BUF_SIZE};
#ifdef CONFIG_SILENT_CONSOLE
if (getenv("silent") != NULL)
gd->flags |= GD_FLG_SILENT;
#endif
print_pre_console_buffer();
//if it is not boot mode, set debug enable
if(uboot_spare_head.boot_data.work_mode != WORK_MODE_BOOT)
return 0;
//if the dram size is 0, set debug enable
dram_size = uboot_spare_head.boot_data.dram_scan_size;
if (!dram_size)
return 0;
//if user input 's', set debug enable
if (uboot_spare_head.boot_ext[0].data[1] == 's') {
gd->force_shell = 1;
return 0;
}
//if user selete, set debug enable
//maybe: user set sysconfig
//maybe: user press keyboard 'd' or 's'
//'d': only show debug information
debug_level = uboot_spare_head.boot_ext[0].data[3];
if (debug_level)
{
return 0;
}
debug_buf_base = (CONFIG_SYS_SDRAM_BASE + dram_size * 1024 * 1024 - CONFIG_SUNXI_DEBUG_BUF_SIZE);
memset((void*)debug_buf_base, 0, CONFIG_SUNXI_DEBUG_BUF_SIZE);
offset = debug_buf_base;
for(i = 0; i < MAX_CPU_CNT; i++)
{
debug_info[i].debug_addr = offset;
debug_info[i].max_len = cpu_buf_size[i];
offset += cpu_buf_size[i];
}
debug_level = 0;
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 */
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