[U-Boot] [PATCH v4 7/8] main: Use autoconf in command line reading
Simon Glass
sjg at chromium.org
Sat Oct 26 17:14:16 CEST 2013
Remove #ifdefs in favour of autoconf for this code. This involves removing
a few unnecessary #ifdefs in headers also.
We have two versions of the code - one that handles command line editing and
one that is just a simple implementation. Create a new function called
readline_into_buffer() which calls either cread_line() or the new
simple_readline(), created to hold the 'simple' code.
The cread_print_hist_list() function is not actually used anywhere, so punt
it.
Signed-off-by: Simon Glass <sjg at chromium.org>
Reviewed-by: Joe Hershberger <joe.hershberger at ni.com>
---
Changes in v4: None
Changes in v3: None
Changes in v2: None
common/main.c | 164 ++++++++++++++++++++++++------------------------------
include/command.h | 2 -
include/common.h | 2 -
3 files changed, 73 insertions(+), 95 deletions(-)
diff --git a/common/main.c b/common/main.c
index 060da11..94f1e24 100644
--- a/common/main.c
+++ b/common/main.c
@@ -497,8 +497,6 @@ void reset_cmd_timeout(void)
}
#endif
-#ifdef CONFIG_CMDLINE_EDITING
-
/*
* cmdline-editing related codes from vivi.
* Author: Janghoon Lyu <nandy at mizi.com>
@@ -601,27 +599,6 @@ static char* hist_next(void)
return (ret);
}
-#ifndef CONFIG_CMDLINE_EDITING
-static void cread_print_hist_list(void)
-{
- int i;
- unsigned long n;
-
- n = hist_num - hist_max;
-
- i = hist_add_idx + 1;
- while (1) {
- if (i > hist_max)
- i = 0;
- if (i == hist_add_idx)
- break;
- printf("%s\n", hist_list[i]);
- n++;
- i++;
- }
-}
-#endif /* CONFIG_CMDLINE_EDITING */
-
#define BEGINNING_OF_LINE() { \
while (num) { \
getcmd_putch(CTL_BACKSPACE); \
@@ -883,27 +860,27 @@ static int cread_line(const char *const prompt, char *buf, unsigned int *len,
REFRESH_TO_EOL();
continue;
}
-#ifdef CONFIG_AUTO_COMPLETE
- case '\t': {
- int num2, col;
+ case '\t':
+ if (autoconf_auto_complete()) {
+ int num2, col;
- /* do not autocomplete when in the middle */
- if (num < eol_num) {
- getcmd_cbeep();
- break;
- }
+ /* do not autocomplete when in the middle */
+ if (num < eol_num) {
+ getcmd_cbeep();
+ break;
+ }
- buf[num] = '\0';
- col = strlen(prompt) + eol_num;
- num2 = num;
- if (cmd_auto_complete(prompt, buf, &num2, &col)) {
- col = num2 - num;
- num += col;
- eol_num += col;
+ buf[num] = '\0';
+ col = strlen(prompt) + eol_num;
+ num2 = num;
+ if (cmd_auto_complete(prompt, buf, &num2,
+ &col)) {
+ col = num2 - num;
+ num += col;
+ eol_num += col;
+ }
+ break;
}
- break;
- }
-#endif
default:
cread_add_char(ichar, insert, &num, &eol_num, buf, *len);
break;
@@ -919,8 +896,6 @@ static int cread_line(const char *const prompt, char *buf, unsigned int *len,
return 0;
}
-#endif /* CONFIG_CMDLINE_EDITING */
-
/****************************************************************************/
/*
@@ -942,46 +917,14 @@ int readline (const char *const prompt)
return readline_into_buffer(prompt, console_buffer, 0);
}
-
-int readline_into_buffer(const char *const prompt, char *buffer, int timeout)
+static int simple_readline(const char *const prompt, int plen, char *p,
+ int timeout)
{
- char *p = buffer;
-#ifdef CONFIG_CMDLINE_EDITING
- unsigned int len = CONFIG_SYS_CBSIZE;
- int rc;
- static int initted = 0;
-
- /*
- * History uses a global array which is not
- * writable until after relocation to RAM.
- * Revert to non-history version if still
- * running from flash.
- */
- if (gd->flags & GD_FLG_RELOC) {
- if (!initted) {
- hist_init();
- initted = 1;
- }
-
- if (prompt)
- puts (prompt);
-
- rc = cread_line(prompt, p, &len, timeout);
- return rc < 0 ? rc : len;
-
- } else {
-#endif /* CONFIG_CMDLINE_EDITING */
char * p_buf = p;
int n = 0; /* buffer index */
- int plen = 0; /* prompt length */
int col; /* output column cnt */
char c;
- /* print prompt */
- if (prompt) {
- plen = strlen (prompt);
- puts (prompt);
- }
col = plen;
for (;;) {
@@ -994,12 +937,12 @@ int readline_into_buffer(const char *const prompt, char *buffer, int timeout)
}
WATCHDOG_RESET(); /* Trigger watchdog, if needed */
-#ifdef CONFIG_SHOW_ACTIVITY
- while (!tstc()) {
- show_activity(0);
- WATCHDOG_RESET();
+ if (autoconf_show_activity()) {
+ while (!tstc()) {
+ show_activity(0);
+ WATCHDOG_RESET();
+ }
}
-#endif
c = getc();
/*
@@ -1046,14 +989,20 @@ int readline_into_buffer(const char *const prompt, char *buffer, int timeout)
*/
if (n < CONFIG_SYS_CBSIZE-2) {
if (c == '\t') { /* expand TABs */
-#ifdef CONFIG_AUTO_COMPLETE
- /* if auto completion triggered just continue */
- *p = '\0';
- if (cmd_auto_complete(prompt, console_buffer, &n, &col)) {
- p = p_buf + n; /* reset */
- continue;
+ if (autoconf_auto_complete()) {
+ /*
+ * if auto completion triggered
+ * just continue
+ */
+ *p = '\0';
+ if (cmd_auto_complete(prompt,
+ console_buffer,
+ &n, &col)) {
+ /* reset */
+ p = p_buf + n;
+ continue;
+ }
}
-#endif
puts (tab_seq+(col&07));
col += 8 - (col&07);
} else {
@@ -1075,9 +1024,42 @@ int readline_into_buffer(const char *const prompt, char *buffer, int timeout)
}
}
}
-#ifdef CONFIG_CMDLINE_EDITING
+}
+
+int readline_into_buffer(const char *const prompt, char *buffer, int timeout)
+{
+ unsigned int len = CONFIG_SYS_CBSIZE;
+ int rc;
+ static int initted;
+
+ /*
+ * History uses a global array which is not
+ * writable until after relocation to RAM.
+ * Revert to non-history version if still
+ * running from flash.
+ */
+ if (autoconf_cmdline_editing() && (gd->flags & GD_FLG_RELOC)) {
+ if (!initted) {
+ hist_init();
+ initted = 1;
+ }
+
+ if (prompt)
+ puts(prompt);
+
+ rc = cread_line(prompt, buffer, &len, timeout);
+ return rc < 0 ? rc : len;
+
+ } else {
+ int plen = 0; /* prompt length */
+
+ /* print prompt */
+ if (prompt) {
+ plen = strlen(prompt);
+ puts(prompt);
+ }
+ return simple_readline(prompt, plen, buffer, timeout);
}
-#endif
}
/****************************************************************************/
diff --git a/include/command.h b/include/command.h
index f782779..d3ed6ed 100644
--- a/include/command.h
+++ b/include/command.h
@@ -59,10 +59,8 @@ cmd_tbl_t *find_cmd_tbl (const char *cmd, cmd_tbl_t *table, int table_len);
extern int cmd_usage(const cmd_tbl_t *cmdtp);
-#ifdef CONFIG_AUTO_COMPLETE
extern int var_complete(int argc, char * const argv[], char last_char, int maxv, char *cmdv[]);
extern int cmd_auto_complete(const char *const prompt, char *buf, int *np, int *colp);
-#endif
/*
* Monitor Command
diff --git a/include/common.h b/include/common.h
index f07f740..735258e 100644
--- a/include/common.h
+++ b/include/common.h
@@ -903,9 +903,7 @@ int pcmcia_init (void);
#include <bootstage.h>
-#ifdef CONFIG_SHOW_ACTIVITY
void show_activity(int arg);
-#endif
/* Multicore arch functions */
#ifdef CONFIG_MP
--
1.8.4.1
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