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-rw-r--r--board/lwmon/lwmon.c257
1 files changed, 171 insertions, 86 deletions
diff --git a/board/lwmon/lwmon.c b/board/lwmon/lwmon.c
index f255599cf..d5a637f4b 100644
--- a/board/lwmon/lwmon.c
+++ b/board/lwmon/lwmon.c
@@ -47,11 +47,18 @@ V* Verification: dzu@denx.de
/*------------------------ Local prototypes ---------------------------*/
static long int dram_size (long int, long int *, long int);
+static void kbd_init (void);
+static int compare_magic (uchar *kbd_data, uchar *str);
/*--------------------- Local macros and constants --------------------*/
#define _NOT_USED_ 0xFFFFFFFF
+#ifdef CONFIG_MODEM_SUPPORT
+static int key_pressed(void);
+extern void disable_putc(void);
+#endif /* CONFIG_MODEM_SUPPORT */
+
/*
* 66 MHz SDRAM access using UPM A
*/
@@ -396,6 +403,7 @@ int board_pre_init (void)
immr->im_cpm.cp_pbodr &= ~PB_ENET_TENA;
immr->im_cpm.cp_pbdat &= ~PB_ENET_TENA; /* set to 0 = disabled */
immr->im_cpm.cp_pbdir |= PB_ENET_TENA;
+
return (0);
}
@@ -466,38 +474,45 @@ static uchar *key_match (uchar *);
#define KEYBD_SET_DEBUGMODE '#' /* Magic key to enable debug output */
/***********************************************************************
-F* Function: int misc_init_r (void) P*A*Z*
+F* Function: int board_postclk_init (void) P*A*Z*
*
P* Parameters: none
P*
P* Returnvalue: int
-P* - 0 is always returned, even in the case of a keyboard
-P* error.
+P* - 0 is always returned.
*
-Z* Intention: This function is the misc_init_r() method implementation
+Z* Intention: This function is the board_postclk_init() method implementation
Z* for the lwmon board.
-Z* The keyboard controller is initialized and the result
-Z* of a read copied to the environment variable "keybd".
-Z* If KEYBD_SET_DEBUGMODE is defined, a check is made for
-Z* this key, and if found display to the LCD will be enabled.
-Z* The keys in "keybd" are checked against the magic
-Z* keycommands defined in the environment.
-Z* See also key_match().
*
-D* Design: wd@denx.de
-C* Coding: wd@denx.de
-V* Verification: dzu@denx.de
***********************************************************************/
-int misc_init_r (void)
+int board_postclk_init (void)
{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ kbd_init();
+
+#ifdef CONFIG_MODEM_SUPPORT
+ if (key_pressed()) {
+ disable_putc(); /* modem doesn't understand banner etc */
+ gd->do_mdm_init = 1;
+ }
+#endif
+
+ return (0);
+}
+
+static void kbd_init (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
uchar kbd_data[KEYBD_DATALEN];
uchar tmp_data[KEYBD_DATALEN];
- uchar keybd_env[2 * KEYBD_DATALEN + 1];
uchar val, errcd;
- uchar *str;
int i;
i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
+
+ gd->kbd_status = 0;
/* Read initial keyboard error code */
val = KEYBD_CMD_READ_STATUS;
@@ -508,7 +523,7 @@ int misc_init_r (void)
/* clear "irrelevant" bits. Recommended by Martin Rajek, LWN */
errcd &= ~(KEYBD_STATUS_H_RESET|KEYBD_STATUS_BROWNOUT);
if (errcd) {
- printf ("KEYBD: Error %02X\n", errcd);
+ gd->kbd_status |= errcd << 8;
}
/* Reset error code and verify */
val = KEYBD_CMD_RESET_ERRORS;
@@ -521,28 +536,10 @@ int misc_init_r (void)
val &= KEYBD_STATUS_MASK; /* clear unused bits */
if (val) { /* permanent error, report it */
- printf ("*** Keyboard error code %02X ***\n", val);
- sprintf (keybd_env, "%02X", val);
- setenv ("keybd", keybd_env);
- return 0;
- }
-
- /*
- * Now we know that we have a working keyboard, so disable
- * all output to the LCD except when a key press is detected.
- */
-
- if ((console_assign (stdout, "serial") < 0) ||
- (console_assign (stderr, "serial") < 0)) {
- printf ("Can't assign serial port as output device\n");
+ gd->kbd_status |= val;
+ return;
}
- /* Read Version */
- val = KEYBD_CMD_READ_VERSION;
- i2c_write (kbd_addr, 0, 0, &val, 1);
- i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_VERSIONLEN);
- printf ("KEYBD: Version %d.%d\n", kbd_data[0], kbd_data[1]);
-
/*
* Read current keyboard state.
*
@@ -569,6 +566,73 @@ int misc_init_r (void)
memcpy (tmp_data, kbd_data, KEYBD_DATALEN);
udelay (5000);
}
+}
+
+/***********************************************************************
+F* Function: int misc_init_r (void) P*A*Z*
+ *
+P* Parameters: none
+P*
+P* Returnvalue: int
+P* - 0 is always returned, even in the case of a keyboard
+P* error.
+ *
+Z* Intention: This function is the misc_init_r() method implementation
+Z* for the lwmon board.
+Z* The keyboard controller is initialized and the result
+Z* of a read copied to the environment variable "keybd".
+Z* If KEYBD_SET_DEBUGMODE is defined, a check is made for
+Z* this key, and if found display to the LCD will be enabled.
+Z* The keys in "keybd" are checked against the magic
+Z* keycommands defined in the environment.
+Z* See also key_match().
+ *
+D* Design: wd@denx.de
+C* Coding: wd@denx.de
+V* Verification: dzu@denx.de
+ ***********************************************************************/
+int misc_init_r (void)
+{
+ DECLARE_GLOBAL_DATA_PTR;
+
+ uchar kbd_data[KEYBD_DATALEN];
+ uchar keybd_env[2 * KEYBD_DATALEN + 1];
+ uchar kbd_init_status = gd->kbd_status >> 8;
+ uchar kbd_status = gd->kbd_status;
+ uchar val;
+ uchar *str;
+ int i;
+
+ if (kbd_init_status) {
+ printf ("KEYBD: Error %02X\n", kbd_init_status);
+ }
+ if (kbd_status) { /* permanent error, report it */
+ printf ("*** Keyboard error code %02X ***\n", kbd_status);
+ sprintf (keybd_env, "%02X", kbd_status);
+ setenv ("keybd", keybd_env);
+ return 0;
+ }
+
+ /*
+ * Now we know that we have a working keyboard, so disable
+ * all output to the LCD except when a key press is detected.
+ */
+
+ if ((console_assign (stdout, "serial") < 0) ||
+ (console_assign (stderr, "serial") < 0)) {
+ printf ("Can't assign serial port as output device\n");
+ }
+
+ /* Read Version */
+ val = KEYBD_CMD_READ_VERSION;
+ i2c_write (kbd_addr, 0, 0, &val, 1);
+ i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_VERSIONLEN);
+ printf ("KEYBD: Version %d.%d\n", kbd_data[0], kbd_data[1]);
+
+ /* Read current keyboard state */
+ val = KEYBD_CMD_READ_KEYS;
+ i2c_write (kbd_addr, 0, 0, &val, 1);
+ i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_DATALEN);
for (i = 0; i < KEYBD_DATALEN; ++i) {
sprintf (keybd_env + i + i, "%02X", kbd_data[i]);
@@ -598,6 +662,56 @@ int misc_init_r (void)
static uchar kbd_magic_prefix[] = "key_magic";
static uchar kbd_command_prefix[] = "key_cmd";
+static int compare_magic (uchar *kbd_data, uchar *str)
+{
+ uchar compare[KEYBD_DATALEN-1];
+ uchar *nxt;
+ int i;
+
+ /* Don't include modifier byte */
+ memcpy (compare, kbd_data+1, KEYBD_DATALEN-1);
+
+ for (; str != NULL; str = (*nxt) ? nxt+1 : nxt) {
+ uchar c;
+ int k;
+
+ c = (uchar) simple_strtoul (str, (char **) (&nxt), 16);
+
+ if (str == nxt) { /* invalid character */
+ break;
+ }
+
+ /*
+ * Check if this key matches the input.
+ * Set matches to zero, so they match only once
+ * and we can find duplicates or extra keys
+ */
+ for (k = 0; k < sizeof(compare); ++k) {
+ if (compare[k] == '\0') /* only non-zero entries */
+ continue;
+ if (c == compare[k]) { /* found matching key */
+ compare[k] = '\0';
+ break;
+ }
+ }
+ if (k == sizeof(compare)) {
+ return -1; /* unmatched key */
+ }
+ }
+
+ /*
+ * A full match leaves no keys in the `compare' array,
+ */
+ for (i = 0; i < sizeof(compare); ++i) {
+ if (compare[i])
+ {
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
/***********************************************************************
F* Function: static uchar *key_match (uchar *kbd_data) P*A*Z*
*
@@ -627,12 +741,9 @@ V* Verification: dzu@denx.de
***********************************************************************/
static uchar *key_match (uchar *kbd_data)
{
- uchar compare[KEYBD_DATALEN-1];
uchar magic[sizeof (kbd_magic_prefix) + 1];
- uchar extra;
- uchar *str, *nxt, *suffix;
+ uchar *suffix;
uchar *kbd_magic_keys;
- int i;
/*
* The following string defines the characters that can pe appended
@@ -653,50 +764,7 @@ static uchar *key_match (uchar *kbd_data)
#if 0
printf ("### Check magic \"%s\"\n", magic);
#endif
- /* Don't include modifier byte */
- memcpy (compare, kbd_data+1, KEYBD_DATALEN-1);
-
- extra = 0;
-
- for (str= getenv(magic); str != NULL; str = (*nxt) ? nxt+1 : nxt) {
- uchar c;
- int k;
-
- c = (uchar) simple_strtoul (str, (char **) (&nxt), 16);
-
- if (str == nxt) { /* invalid character */
- break;
- }
-
- /*
- * Check if this key matches the input.
- * Set matches to zero, so they match only once
- * and we can find duplicates or extra keys
- */
- for (k = 0; k < sizeof(compare); ++k) {
- if (compare[k] == '\0') /* only non-zero entries */
- continue;
- if (c == compare[k]) { /* found matching key */
- compare[k] = '\0';
- break;
- }
- }
- if (k == sizeof(compare)) {
- extra = 1; /* unmatched key */
- }
- }
-
- /*
- * A full match leaves no keys in the `compare' array,
- * and has no extra keys
- */
-
- for (i = 0; i < sizeof(compare); ++i) {
- if (compare[i])
- break;
- }
-
- if ((i == sizeof(compare)) && (extra == 0)) {
+ if (compare_magic(kbd_data, getenv(magic)) == 0) {
uchar cmd_name[sizeof (kbd_command_prefix) + 1];
char *cmd;
@@ -815,7 +883,9 @@ int do_kbd (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
uchar val;
int i;
+#if 0 /* Done in kbd_init */
i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
+#endif
/* Read keys */
val = KEYBD_CMD_READ_KEYS;
@@ -964,3 +1034,18 @@ void board_poweroff (void)
while (1);
}
+
+#ifdef CONFIG_MODEM_SUPPORT
+static int key_pressed(void)
+{
+ uchar kbd_data[KEYBD_DATALEN];
+ uchar val;
+
+ /* Read keys */
+ val = KEYBD_CMD_READ_KEYS;
+ i2c_write (kbd_addr, 0, 0, &val, 1);
+ i2c_read (kbd_addr, 0, 0, kbd_data, KEYBD_DATALEN);
+
+ return (compare_magic(kbd_data, CONFIG_MODEM_KEY_MAGIC) == 0);
+}
+#endif /* CONFIG_MODEM_SUPPORT */
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-10-31 17:20:18 +0000