#include <exports.h>
#include <env_internal.h>
#include <watchdog.h>
+#include <asm/global_data.h>
#include <linux/delay.h>
DECLARE_GLOBAL_DATA_PTR;
case env_op_create:
case env_op_overwrite:
-#if CONFIG_IS_ENABLED(CONSOLE_MUX)
- if (iomux_doenv(console, value))
- return 1;
-#else
- /* Try assigning specified device */
- if (console_assign(console, value) < 0)
- return 1;
-#endif
+ if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
+ if (iomux_doenv(console, value))
+ return 1;
+ } else {
+ /* Try assigning specified device */
+ if (console_assign(console, value) < 0)
+ return 1;
+ }
+
return 0;
case env_op_delete:
static int on_silent(const char *name, const char *value, enum env_op op,
int flags)
{
-#if !CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_SET)
- if (flags & H_INTERACTIVE)
- return 0;
-#endif
-#if !CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_RELOC)
- if ((flags & H_INTERACTIVE) == 0)
- return 0;
-#endif
+ if (!CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_SET))
+ if (flags & H_INTERACTIVE)
+ return 0;
+
+ if (!CONFIG_IS_ENABLED(SILENT_CONSOLE_UPDATE_ON_RELOC))
+ if ((flags & H_INTERACTIVE) == 0)
+ return 0;
if (value != NULL)
gd->flags |= GD_FLG_SILENT;
U_BOOT_ENV_CALLBACK(silent, on_silent);
#endif
+#ifdef CONFIG_CONSOLE_RECORD
+/* helper function: access to gd->console_out and gd->console_in */
+static void console_record_putc(const char c)
+{
+ if (!(gd->flags & GD_FLG_RECORD))
+ return;
+ if (gd->console_out.start)
+ membuff_putbyte((struct membuff *)&gd->console_out, c);
+}
+
+static void console_record_puts(const char *s)
+{
+ if (!(gd->flags & GD_FLG_RECORD))
+ return;
+ if (gd->console_out.start)
+ membuff_put((struct membuff *)&gd->console_out, s, strlen(s));
+}
+
+static int console_record_getc(void)
+{
+ if (!(gd->flags & GD_FLG_RECORD))
+ return -1;
+ if (!gd->console_in.start)
+ return -1;
+
+ return membuff_getbyte((struct membuff *)&gd->console_in);
+}
+
+static int console_record_tstc(void)
+{
+ if (!(gd->flags & GD_FLG_RECORD))
+ return 0;
+ if (gd->console_in.start) {
+ if (membuff_peekbyte((struct membuff *)&gd->console_in) != -1)
+ return 1;
+ }
+ return 0;
+}
+#else
+static void console_record_putc(char c)
+{
+}
+
+static void console_record_puts(const char *s)
+{
+}
+
+static int console_record_getc(void)
+{
+ return -1;
+}
+
+static int console_record_tstc(void)
+{
+ return 0;
+}
+#endif
+
#if CONFIG_IS_ENABLED(SYS_CONSOLE_IS_IN_ENV)
/*
* if overwrite_console returns 1, the stdin, stderr and stdout
case stdin:
case stdout:
case stderr:
- /* Start new device */
- if (dev->start) {
- error = dev->start(dev);
- /* If it's not started dont use it */
- if (error < 0)
- break;
- }
+ error = console_start(file, dev);
+ if (error)
+ break;
/* Assign the new device (leaving the existing one started) */
stdio_devices[file] = dev;
*/
switch (file) {
case stdin:
- gd->jt->getc = getc;
+ gd->jt->getc = getchar;
gd->jt->tstc = tstc;
break;
case stdout:
{
bool is_serial;
-#ifdef CONFIG_DM_SERIAL
- if (sdev->flags & DEV_FLAGS_DM) {
+ if (IS_ENABLED(CONFIG_DM_SERIAL) && (sdev->flags & DEV_FLAGS_DM)) {
struct udevice *dev = sdev->priv;
is_serial = device_get_uclass_id(dev) == UCLASS_SERIAL;
- } else
-#endif
- is_serial = !strcmp(sdev->name, "serial");
+ } else {
+ is_serial = !strcmp(sdev->name, "serial");
+ }
return is_serial;
}
#if CONFIG_IS_ENABLED(CONSOLE_MUX)
/** Console I/O multiplexing *******************************************/
+/* tstcdev: save the last stdio device with pending characters, with tstc != 0 */
static struct stdio_dev *tstcdev;
struct stdio_dev **console_devices[MAX_FILES];
int cd_count[MAX_FILES];
+static void console_devices_set(int file, struct stdio_dev *dev)
+{
+ console_devices[file][0] = dev;
+ cd_count[file] = 1;
+}
+
+/**
+ * console_needs_start_stop() - check if we need to start or stop the STDIO device
+ * @file: STDIO file
+ * @sdev: STDIO device in question
+ *
+ * This function checks if we need to start or stop the stdio device used for
+ * a console. For IOMUX case it simply enforces one time start and one time
+ * stop of the device independently of how many STDIO files are using it. In
+ * other words, we start console once before first STDIO device wants it and
+ * stop after the last is gone.
+ */
+static bool console_needs_start_stop(int file, struct stdio_dev *sdev)
+{
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(cd_count); i++) {
+ if (i == file)
+ continue;
+
+ if (iomux_match_device(console_devices[i], cd_count[i], sdev) >= 0)
+ return false;
+ }
+ return true;
+}
+
/*
- * This depends on tstc() always being called before getc().
+ * This depends on tstc() always being called before getchar().
* 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.
return ret;
}
+/* Upper layer may have already called tstc(): check the saved result */
+static bool console_has_tstc(void)
+{
+ return !!tstcdev;
+}
+
static int console_tstc(int file)
{
int i, ret;
int prev;
prev = disable_ctrlc(1);
- for (i = 0; i < cd_count[file]; i++) {
- dev = console_devices[file][i];
+ for_each_console_dev(i, file, dev) {
if (dev->tstc != NULL) {
ret = dev->tstc(dev);
if (ret > 0) {
int i;
struct stdio_dev *dev;
- for (i = 0; i < cd_count[file]; i++) {
- dev = console_devices[file][i];
+ for_each_console_dev(i, file, dev) {
if (dev->putc != NULL)
dev->putc(dev, c);
}
int i;
struct stdio_dev *dev;
- for (i = 0; i < cd_count[file]; i++) {
- bool is_serial;
+ for_each_console_dev(i, file, dev) {
+ bool is_serial = console_dev_is_serial(dev);
- dev = console_devices[file][i];
- is_serial = console_dev_is_serial(dev);
if (dev->puts && serial_only == is_serial)
dev->puts(dev, s);
}
int i;
struct stdio_dev *dev;
- for (i = 0; i < cd_count[file]; i++) {
- dev = console_devices[file][i];
+ for_each_console_dev(i, file, dev) {
if (dev->puts != NULL)
dev->puts(dev, s);
}
}
#endif
#else
+
+static void console_devices_set(int file, struct stdio_dev *dev)
+{
+}
+
+static inline bool console_needs_start_stop(int file, struct stdio_dev *sdev)
+{
+ return true;
+}
+
static inline int console_getc(int file)
{
return stdio_devices[file]->getc(stdio_devices[file]);
}
+static bool console_has_tstc(void)
+{
+ return false;
+}
+
static inline int console_tstc(int file)
{
return stdio_devices[file]->tstc(stdio_devices[file]);
#endif
#endif /* CONIFIG_IS_ENABLED(CONSOLE_MUX) */
+static void __maybe_unused console_setfile_and_devices(int file, struct stdio_dev *dev)
+{
+ console_setfile(file, dev);
+ console_devices_set(file, dev);
+}
+
+int console_start(int file, struct stdio_dev *sdev)
+{
+ int error;
+
+ if (!console_needs_start_stop(file, sdev))
+ return 0;
+
+ /* Start new device */
+ if (sdev->start) {
+ error = sdev->start(sdev);
+ /* If it's not started don't use it */
+ if (error < 0)
+ return error;
+ }
+ return 0;
+}
+
+void console_stop(int file, struct stdio_dev *sdev)
+{
+ if (!console_needs_start_stop(file, sdev))
+ return;
+
+ if (sdev->stop)
+ sdev->stop(sdev);
+}
+
/** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
int serial_printf(const char *fmt, ...)
*/
for (;;) {
WATCHDOG_RESET();
-#if CONFIG_IS_ENABLED(CONSOLE_MUX)
- /*
- * Upper layer may have already called tstc() so
- * check for that first.
- */
- if (tstcdev != NULL)
- return console_getc(file);
- console_tstc(file);
-#else
- if (console_tstc(file))
- return console_getc(file);
-#endif
-#ifdef CONFIG_WATCHDOG
+ if (CONFIG_IS_ENABLED(CONSOLE_MUX)) {
+ /*
+ * Upper layer may have already called tstc() so
+ * check for that first.
+ */
+ if (console_has_tstc())
+ return console_getc(file);
+ console_tstc(file);
+ } else {
+ if (console_tstc(file))
+ return console_getc(file);
+ }
+
/*
* If the watchdog must be rate-limited then it should
* already be handled in board-specific code.
*/
- udelay(1);
-#endif
+ if (IS_ENABLED(CONFIG_WATCHDOG))
+ udelay(1);
}
}
/** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
-int getc(void)
+int getchar(void)
{
-#ifdef CONFIG_DISABLE_CONSOLE
- if (gd->flags & GD_FLG_DISABLE_CONSOLE)
+ int ch;
+
+ if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
return 0;
-#endif
if (!gd->have_console)
return 0;
-#ifdef CONFIG_CONSOLE_RECORD
- if (gd->console_in.start) {
- int ch;
+ ch = console_record_getc();
+ if (ch != -1)
+ return ch;
- ch = membuff_getbyte((struct membuff *)&gd->console_in);
- if (ch != -1)
- return 1;
- }
-#endif
if (gd->flags & GD_FLG_DEVINIT) {
/* Get from the standard input */
return fgetc(stdin);
int tstc(void)
{
-#ifdef CONFIG_DISABLE_CONSOLE
- if (gd->flags & GD_FLG_DISABLE_CONSOLE)
+ if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
return 0;
-#endif
if (!gd->have_console)
return 0;
-#ifdef CONFIG_CONSOLE_RECORD
- if (gd->console_in.start) {
- if (membuff_peekbyte((struct membuff *)&gd->console_in) != -1)
- return 1;
- }
-#endif
+
+ if (console_record_tstc())
+ return 1;
+
if (gd->flags & GD_FLG_DEVINIT) {
/* Test the standard input */
return ftstc(stdin);
char buf_out[CONFIG_PRE_CON_BUF_SZ + 1];
char *buf_in;
-#ifdef CONFIG_SILENT_CONSOLE
- if (gd->flags & GD_FLG_SILENT)
+ if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT))
return;
-#endif
buf_in = map_sysmem(CONFIG_PRE_CON_BUF_ADDR, CONFIG_PRE_CON_BUF_SZ);
if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ)
void putc(const char c)
{
-#ifdef CONFIG_SANDBOX
+ if (!gd)
+ return;
+
+ console_record_putc(c);
+
/* sandbox can send characters to stdout before it has a console */
- if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
+ if (IS_ENABLED(CONFIG_SANDBOX) && !(gd->flags & GD_FLG_SERIAL_READY)) {
os_putc(c);
return;
}
-#endif
-#ifdef CONFIG_DEBUG_UART
+
/* if we don't have a console yet, use the debug UART */
- if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
+ if (IS_ENABLED(CONFIG_DEBUG_UART) && !(gd->flags & GD_FLG_SERIAL_READY)) {
printch(c);
return;
}
-#endif
- if (!gd)
- return;
-#ifdef CONFIG_CONSOLE_RECORD
- if ((gd->flags & GD_FLG_RECORD) && gd->console_out.start)
- membuff_putbyte((struct membuff *)&gd->console_out, c);
-#endif
-#ifdef CONFIG_SILENT_CONSOLE
- if (gd->flags & GD_FLG_SILENT) {
+
+ if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT)) {
if (!(gd->flags & GD_FLG_DEVINIT))
pre_console_putc(c);
return;
}
-#endif
-#ifdef CONFIG_DISABLE_CONSOLE
- if (gd->flags & GD_FLG_DISABLE_CONSOLE)
+ if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
return;
-#endif
if (!gd->have_console)
return pre_console_putc(c);
void puts(const char *s)
{
-#ifdef CONFIG_SANDBOX
+ if (!gd)
+ return;
+
+ console_record_puts(s);
+
/* sandbox can send characters to stdout before it has a console */
- if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
+ if (IS_ENABLED(CONFIG_SANDBOX) && !(gd->flags & GD_FLG_SERIAL_READY)) {
os_puts(s);
return;
}
-#endif
-#ifdef CONFIG_DEBUG_UART
- if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
+
+ if (IS_ENABLED(CONFIG_DEBUG_UART) && !(gd->flags & GD_FLG_SERIAL_READY)) {
while (*s) {
int ch = *s++;
}
return;
}
-#endif
- if (!gd)
- return;
-#ifdef CONFIG_CONSOLE_RECORD
- if ((gd->flags & GD_FLG_RECORD) && gd->console_out.start)
- membuff_put((struct membuff *)&gd->console_out, s, strlen(s));
-#endif
-#ifdef CONFIG_SILENT_CONSOLE
- if (gd->flags & GD_FLG_SILENT) {
+
+ if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && (gd->flags & GD_FLG_SILENT)) {
if (!(gd->flags & GD_FLG_DEVINIT))
pre_console_puts(s);
return;
}
-#endif
-#ifdef CONFIG_DISABLE_CONSOLE
- if (gd->flags & GD_FLG_DISABLE_CONSOLE)
+ if (IS_ENABLED(CONFIG_DISABLE_CONSOLE) && (gd->flags & GD_FLG_DISABLE_CONSOLE))
return;
-#endif
if (!gd->have_console)
return pre_console_puts(s);
membuff_purge((struct membuff *)&gd->console_in);
}
-void console_record_reset_enable(void)
+int console_record_reset_enable(void)
{
console_record_reset();
gd->flags |= GD_FLG_RECORD;
+
+ return 0;
}
int console_record_readline(char *str, int maxlen)
{
if (!ctrlc_disabled && gd->have_console) {
if (tstc()) {
- switch (getc()) {
+ switch (getchar()) {
case 0x03: /* ^C - Control C */
ctrlc_was_pressed = 1;
return 1;
/* Flush input */
while (tstc())
- getc();
+ getchar();
i = 0;
while (i < sizeof(str_input)) {
- str_input[i] = getc();
+ str_input[i] = getchar();
putc(str_input[i]);
if (str_input[i] == '\r')
break;
/** U-Boot INIT FUNCTIONS *************************************************/
-struct stdio_dev *search_device(int flags, const char *name)
+struct stdio_dev *console_search_dev(int flags, const char *name)
{
struct stdio_dev *dev;
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;
- }
+ flag = stdio_file_to_flags(file);
+ if (flag < 0)
+ return flag;
/* Check for valid device name */
- dev = search_device(flag, devname);
+ dev = console_search_dev(flag, devname);
if (dev)
return console_setfile(file, dev);
/* return true if the 'silent' flag is removed */
static bool console_update_silent(void)
{
-#ifdef CONFIG_SILENT_CONSOLE
- if (env_get("silent")) {
- gd->flags |= GD_FLG_SILENT;
- } else {
- unsigned long flags = gd->flags;
+ unsigned long flags = gd->flags;
- gd->flags &= ~GD_FLG_SILENT;
+ if (!IS_ENABLED(CONFIG_SILENT_CONSOLE))
+ return false;
- return !!(flags & GD_FLG_SILENT);
+ if (env_get("silent")) {
+ gd->flags |= GD_FLG_SILENT;
+ return false;
}
-#endif
- return false;
+ gd->flags &= ~GD_FLG_SILENT;
+
+ return !!(flags & GD_FLG_SILENT);
}
int console_announce_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 */
-#if CONFIG_IS_ENABLED(CONSOLE_MUX)
int iomux_err = 0;
-#endif
int flushpoint;
/* update silent for env loaded from flash (initr_env) */
stderrname = env_get("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);
-#if CONFIG_IS_ENABLED(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
+ inputdev = console_search_dev(DEV_FLAGS_INPUT, stdinname);
+ outputdev = console_search_dev(DEV_FLAGS_OUTPUT, stdoutname);
+ errdev = console_search_dev(DEV_FLAGS_OUTPUT, stderrname);
+ if (CONFIG_IS_ENABLED(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;
+ }
}
/* if the devices are overwritten or not found, use default device */
if (inputdev == NULL) {
- inputdev = search_device(DEV_FLAGS_INPUT, "serial");
+ inputdev = console_search_dev(DEV_FLAGS_INPUT, "serial");
}
if (outputdev == NULL) {
- outputdev = search_device(DEV_FLAGS_OUTPUT, "serial");
+ outputdev = console_search_dev(DEV_FLAGS_OUTPUT, "serial");
}
if (errdev == NULL) {
- errdev = search_device(DEV_FLAGS_OUTPUT, "serial");
+ errdev = console_search_dev(DEV_FLAGS_OUTPUT, "serial");
}
/* Initializes output console first */
if (outputdev != NULL) {
console_doenv(stdin, inputdev);
}
-#if CONFIG_IS_ENABLED(CONSOLE_MUX)
done:
-#endif
-#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
- stdio_print_current_devices();
-#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
+ if (!IS_ENABLED(CONFIG_SYS_CONSOLE_INFO_QUIET))
+ stdio_print_current_devices();
+
#ifdef CONFIG_VIDCONSOLE_AS_LCD
if (strstr(stdoutname, CONFIG_VIDCONSOLE_AS_NAME))
printf("Warning: Please change '%s' to 'vidconsole' in stdout/stderr environment vars\n",
CONFIG_VIDCONSOLE_AS_NAME);
#endif
-#ifdef CONFIG_SYS_CONSOLE_ENV_OVERWRITE
- /* set the environment variables (will overwrite previous env settings) */
- for (i = 0; i < MAX_FILES; i++) {
- env_set(stdio_names[i], stdio_devices[i]->name);
+ if (IS_ENABLED(CONFIG_SYS_CONSOLE_ENV_OVERWRITE)) {
+ /* set the environment variables (will overwrite previous env settings) */
+ for (i = 0; i < MAX_FILES; i++)
+ env_set(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
print_pre_console_buffer(flushpoint);
return 0;
}
else
flushpoint = PRE_CONSOLE_FLUSHPOINT2_EVERYTHING_BUT_SERIAL;
-#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 (env_get("splashimage") != NULL) {
+ if (IS_ENABLED(CONFIG_SPLASH_SCREEN) && env_get("splashimage")) {
if (!(gd->flags & GD_FLG_SILENT))
- outputdev = search_device (DEV_FLAGS_OUTPUT, "serial");
+ outputdev = console_search_dev (DEV_FLAGS_OUTPUT, "serial");
}
-#endif
/* Scan devices looking for input and output devices */
list_for_each(pos, list) {
/* Initializes output console first */
if (outputdev != NULL) {
- console_setfile(stdout, outputdev);
- console_setfile(stderr, outputdev);
-#if CONFIG_IS_ENABLED(CONSOLE_MUX)
- console_devices[stdout][0] = outputdev;
- console_devices[stderr][0] = outputdev;
-#endif
+ console_setfile_and_devices(stdout, outputdev);
+ console_setfile_and_devices(stderr, outputdev);
}
/* Initializes input console */
- if (inputdev != NULL) {
- console_setfile(stdin, inputdev);
-#if CONFIG_IS_ENABLED(CONSOLE_MUX)
- console_devices[stdin][0] = inputdev;
-#endif
- }
+ if (inputdev != NULL)
+ console_setfile_and_devices(stdin, inputdev);
-#ifndef CONFIG_SYS_CONSOLE_INFO_QUIET
- stdio_print_current_devices();
-#endif /* CONFIG_SYS_CONSOLE_INFO_QUIET */
+ if (!IS_ENABLED(CONFIG_SYS_CONSOLE_INFO_QUIET))
+ stdio_print_current_devices();
/* Setting environment variables */
for (i = 0; i < MAX_FILES; i++) {
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
print_pre_console_buffer(flushpoint);
return 0;
}