upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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875 lines
18 KiB
875 lines
18 KiB
/*
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* (C) Copyright 2000
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* Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <stdarg.h>
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#include <malloc.h>
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#include <os.h>
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#include <serial.h>
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#include <stdio_dev.h>
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#include <exports.h>
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#include <environment.h>
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DECLARE_GLOBAL_DATA_PTR;
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static int on_console(const char *name, const char *value, enum env_op op,
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int flags)
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{
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int console = -1;
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/* Check for console redirection */
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if (strcmp(name, "stdin") == 0)
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console = stdin;
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else if (strcmp(name, "stdout") == 0)
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console = stdout;
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else if (strcmp(name, "stderr") == 0)
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console = stderr;
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/* if not actually setting a console variable, we don't care */
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if (console == -1 || (gd->flags & GD_FLG_DEVINIT) == 0)
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return 0;
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switch (op) {
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case env_op_create:
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case env_op_overwrite:
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#ifdef CONFIG_CONSOLE_MUX
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if (iomux_doenv(console, value))
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return 1;
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#else
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/* Try assigning specified device */
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if (console_assign(console, value) < 0)
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return 1;
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#endif /* CONFIG_CONSOLE_MUX */
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return 0;
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case env_op_delete:
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if ((flags & H_FORCE) == 0)
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printf("Can't delete \"%s\"\n", name);
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return 1;
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default:
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return 0;
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}
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}
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U_BOOT_ENV_CALLBACK(console, on_console);
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#ifdef CONFIG_SILENT_CONSOLE
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static int on_silent(const char *name, const char *value, enum env_op op,
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int flags)
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{
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#ifndef CONFIG_SILENT_CONSOLE_UPDATE_ON_SET
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if (flags & H_INTERACTIVE)
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return 0;
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#endif
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#ifndef CONFIG_SILENT_CONSOLE_UPDATE_ON_RELOC
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if ((flags & H_INTERACTIVE) == 0)
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return 0;
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#endif
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if (value != NULL)
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gd->flags |= GD_FLG_SILENT;
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else
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gd->flags &= ~GD_FLG_SILENT;
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return 0;
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}
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U_BOOT_ENV_CALLBACK(silent, on_silent);
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#endif
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#ifdef CONFIG_SYS_CONSOLE_IS_IN_ENV
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/*
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* if overwrite_console returns 1, the stdin, stderr and stdout
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* are switched to the serial port, else the settings in the
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* environment are used
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*/
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#ifdef CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
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extern int overwrite_console(void);
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#define OVERWRITE_CONSOLE overwrite_console()
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#else
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#define OVERWRITE_CONSOLE 0
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#endif /* CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE */
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#endif /* CONFIG_SYS_CONSOLE_IS_IN_ENV */
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static int console_setfile(int file, struct stdio_dev * dev)
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{
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int error = 0;
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if (dev == NULL)
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return -1;
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switch (file) {
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case stdin:
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case stdout:
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case stderr:
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/* Start new device */
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if (dev->start) {
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error = dev->start(dev);
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/* If it's not started dont use it */
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if (error < 0)
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break;
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}
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/* Assign the new device (leaving the existing one started) */
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stdio_devices[file] = dev;
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/*
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* Update monitor functions
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* (to use the console stuff by other applications)
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*/
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switch (file) {
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case stdin:
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gd->jt[XF_getc] = dev->getc;
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gd->jt[XF_tstc] = dev->tstc;
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break;
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case stdout:
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gd->jt[XF_putc] = dev->putc;
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gd->jt[XF_puts] = dev->puts;
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gd->jt[XF_printf] = printf;
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break;
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}
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break;
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default: /* Invalid file ID */
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error = -1;
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}
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return error;
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}
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#if defined(CONFIG_CONSOLE_MUX)
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/** Console I/O multiplexing *******************************************/
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static struct stdio_dev *tstcdev;
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struct stdio_dev **console_devices[MAX_FILES];
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int cd_count[MAX_FILES];
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/*
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* This depends on tstc() always being called before getc().
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* This is guaranteed to be true because this routine is called
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* only from fgetc() which assures it.
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* No attempt is made to demultiplex multiple input sources.
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*/
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static int console_getc(int file)
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{
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unsigned char ret;
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/* This is never called with testcdev == NULL */
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ret = tstcdev->getc(tstcdev);
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tstcdev = NULL;
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return ret;
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}
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static int console_tstc(int file)
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{
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int i, ret;
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struct stdio_dev *dev;
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disable_ctrlc(1);
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for (i = 0; i < cd_count[file]; i++) {
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dev = console_devices[file][i];
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if (dev->tstc != NULL) {
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ret = dev->tstc(dev);
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if (ret > 0) {
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tstcdev = dev;
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disable_ctrlc(0);
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return ret;
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}
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}
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}
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disable_ctrlc(0);
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return 0;
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}
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static void console_putc(int file, const char c)
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{
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int i;
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struct stdio_dev *dev;
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for (i = 0; i < cd_count[file]; i++) {
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dev = console_devices[file][i];
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if (dev->putc != NULL)
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dev->putc(dev, c);
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}
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}
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static void console_puts(int file, const char *s)
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{
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int i;
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struct stdio_dev *dev;
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for (i = 0; i < cd_count[file]; i++) {
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dev = console_devices[file][i];
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if (dev->puts != NULL)
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dev->puts(dev, s);
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}
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}
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static inline void console_printdevs(int file)
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{
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iomux_printdevs(file);
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}
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static inline void console_doenv(int file, struct stdio_dev *dev)
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{
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iomux_doenv(file, dev->name);
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}
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#else
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static inline int console_getc(int file)
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{
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return stdio_devices[file]->getc(stdio_devices[file]);
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}
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static inline int console_tstc(int file)
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{
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return stdio_devices[file]->tstc(stdio_devices[file]);
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}
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static inline void console_putc(int file, const char c)
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{
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stdio_devices[file]->putc(stdio_devices[file], c);
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}
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static inline void console_puts(int file, const char *s)
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{
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stdio_devices[file]->puts(stdio_devices[file], s);
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}
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static inline void console_printdevs(int file)
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{
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printf("%s\n", stdio_devices[file]->name);
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}
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static inline void console_doenv(int file, struct stdio_dev *dev)
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{
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console_setfile(file, dev);
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}
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#endif /* defined(CONFIG_CONSOLE_MUX) */
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/** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
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int serial_printf(const char *fmt, ...)
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{
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va_list args;
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uint i;
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char printbuffer[CONFIG_SYS_PBSIZE];
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va_start(args, fmt);
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/* For this to work, printbuffer must be larger than
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* anything we ever want to print.
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*/
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i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
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va_end(args);
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serial_puts(printbuffer);
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return i;
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}
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int fgetc(int file)
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{
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if (file < MAX_FILES) {
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#if defined(CONFIG_CONSOLE_MUX)
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/*
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* Effectively poll for input wherever it may be available.
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*/
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for (;;) {
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/*
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* Upper layer may have already called tstc() so
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* check for that first.
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*/
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if (tstcdev != NULL)
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return console_getc(file);
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console_tstc(file);
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#ifdef CONFIG_WATCHDOG
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/*
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* If the watchdog must be rate-limited then it should
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* already be handled in board-specific code.
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*/
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udelay(1);
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#endif
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}
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#else
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return console_getc(file);
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#endif
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}
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return -1;
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}
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int ftstc(int file)
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{
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if (file < MAX_FILES)
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return console_tstc(file);
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return -1;
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}
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void fputc(int file, const char c)
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{
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if (file < MAX_FILES)
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console_putc(file, c);
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}
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void fputs(int file, const char *s)
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{
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if (file < MAX_FILES)
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console_puts(file, s);
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}
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int fprintf(int file, const char *fmt, ...)
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{
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va_list args;
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uint i;
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char printbuffer[CONFIG_SYS_PBSIZE];
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va_start(args, fmt);
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/* For this to work, printbuffer must be larger than
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* anything we ever want to print.
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*/
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i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
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va_end(args);
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/* Send to desired file */
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fputs(file, printbuffer);
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return i;
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}
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/** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
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int getc(void)
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{
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#ifdef CONFIG_DISABLE_CONSOLE
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if (gd->flags & GD_FLG_DISABLE_CONSOLE)
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return 0;
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#endif
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if (!gd->have_console)
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return 0;
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if (gd->flags & GD_FLG_DEVINIT) {
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/* Get from the standard input */
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return fgetc(stdin);
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}
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/* Send directly to the handler */
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return serial_getc();
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}
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int tstc(void)
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{
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#ifdef CONFIG_DISABLE_CONSOLE
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if (gd->flags & GD_FLG_DISABLE_CONSOLE)
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return 0;
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#endif
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if (!gd->have_console)
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return 0;
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if (gd->flags & GD_FLG_DEVINIT) {
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/* Test the standard input */
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return ftstc(stdin);
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}
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/* Send directly to the handler */
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return serial_tstc();
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}
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#ifdef CONFIG_PRE_CONSOLE_BUFFER
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#define CIRC_BUF_IDX(idx) ((idx) % (unsigned long)CONFIG_PRE_CON_BUF_SZ)
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static void pre_console_putc(const char c)
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{
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char *buffer = (char *)CONFIG_PRE_CON_BUF_ADDR;
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buffer[CIRC_BUF_IDX(gd->precon_buf_idx++)] = c;
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}
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static void pre_console_puts(const char *s)
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{
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while (*s)
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pre_console_putc(*s++);
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}
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static void print_pre_console_buffer(void)
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{
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unsigned long i = 0;
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char *buffer = (char *)CONFIG_PRE_CON_BUF_ADDR;
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if (gd->precon_buf_idx > CONFIG_PRE_CON_BUF_SZ)
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i = gd->precon_buf_idx - CONFIG_PRE_CON_BUF_SZ;
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while (i < gd->precon_buf_idx)
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putc(buffer[CIRC_BUF_IDX(i++)]);
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}
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#else
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static inline void pre_console_putc(const char c) {}
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static inline void pre_console_puts(const char *s) {}
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static inline void print_pre_console_buffer(void) {}
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#endif
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void putc(const char c)
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{
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#ifdef CONFIG_SANDBOX
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if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
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os_putc(c);
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return;
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}
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#endif
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#ifdef CONFIG_SILENT_CONSOLE
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if (gd->flags & GD_FLG_SILENT)
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return;
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#endif
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#ifdef CONFIG_DISABLE_CONSOLE
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if (gd->flags & GD_FLG_DISABLE_CONSOLE)
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return;
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#endif
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if (!gd->have_console)
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return pre_console_putc(c);
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if (gd->flags & GD_FLG_DEVINIT) {
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/* Send to the standard output */
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fputc(stdout, c);
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} else {
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/* Send directly to the handler */
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serial_putc(c);
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}
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}
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void puts(const char *s)
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{
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#ifdef CONFIG_SANDBOX
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if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
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os_puts(s);
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return;
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}
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#endif
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#ifdef CONFIG_SILENT_CONSOLE
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if (gd->flags & GD_FLG_SILENT)
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return;
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#endif
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#ifdef CONFIG_DISABLE_CONSOLE
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if (gd->flags & GD_FLG_DISABLE_CONSOLE)
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return;
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#endif
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if (!gd->have_console)
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return pre_console_puts(s);
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if (gd->flags & GD_FLG_DEVINIT) {
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/* Send to the standard output */
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fputs(stdout, s);
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} else {
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/* Send directly to the handler */
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serial_puts(s);
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}
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}
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int printf(const char *fmt, ...)
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{
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va_list args;
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uint i;
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char printbuffer[CONFIG_SYS_PBSIZE];
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#if !defined(CONFIG_SANDBOX) && !defined(CONFIG_PRE_CONSOLE_BUFFER)
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if (!gd->have_console)
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return 0;
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#endif
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va_start(args, fmt);
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/* For this to work, printbuffer must be larger than
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* anything we ever want to print.
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*/
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i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
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va_end(args);
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/* Print the string */
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puts(printbuffer);
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return i;
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}
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int vprintf(const char *fmt, va_list args)
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{
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uint i;
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char printbuffer[CONFIG_SYS_PBSIZE];
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#if defined(CONFIG_PRE_CONSOLE_BUFFER) && !defined(CONFIG_SANDBOX)
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if (!gd->have_console)
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return 0;
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#endif
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|
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/* For this to work, printbuffer must be larger than
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* anything we ever want to print.
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*/
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i = vscnprintf(printbuffer, sizeof(printbuffer), fmt, args);
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/* Print the string */
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puts(printbuffer);
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return i;
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}
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/* test if ctrl-c was pressed */
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static int ctrlc_disabled = 0; /* see disable_ctrl() */
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static int ctrlc_was_pressed = 0;
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int ctrlc(void)
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{
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#ifndef CONFIG_SANDBOX
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if (!ctrlc_disabled && gd->have_console) {
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if (tstc()) {
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switch (getc()) {
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case 0x03: /* ^C - Control C */
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ctrlc_was_pressed = 1;
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return 1;
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default:
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break;
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}
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}
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}
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#endif
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return 0;
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}
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/* Reads user's confirmation.
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Returns 1 if user's input is "y", "Y", "yes" or "YES"
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*/
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int confirm_yesno(void)
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{
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int i;
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char str_input[5];
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|
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/* Flush input */
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while (tstc())
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getc();
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i = 0;
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while (i < sizeof(str_input)) {
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str_input[i] = getc();
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putc(str_input[i]);
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if (str_input[i] == '\r')
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break;
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i++;
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}
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putc('\n');
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if (strncmp(str_input, "y\r", 2) == 0 ||
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strncmp(str_input, "Y\r", 2) == 0 ||
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strncmp(str_input, "yes\r", 4) == 0 ||
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strncmp(str_input, "YES\r", 4) == 0)
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return 1;
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return 0;
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}
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/* pass 1 to disable ctrlc() checking, 0 to enable.
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* returns previous state
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*/
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|
int disable_ctrlc(int disable)
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{
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int prev = ctrlc_disabled; /* save previous state */
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ctrlc_disabled = disable;
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return prev;
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}
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|
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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 */
|
|
|