Add keyboard and dot matrix display support for HMI1001 board.

board/hmi1001/hmi1001.c

@@ -156,8 +156,126 @@ int checkboard (void)
 	return 0;
 }
 
+#ifdef CONFIG_PREBOOT
+
+static uchar kbd_magic_prefix[]		= "key_magic";
+static uchar kbd_command_prefix[]	= "key_cmd";
+
+#define S1_ROT	0xf0
+#define S2_Q	0x40
+#define S2_M	0x20
+
+struct kbd_data_t {
+	char s1;
+	char s2;
+};
+
+struct kbd_data_t* get_keys (struct kbd_data_t *kbd_data)
+{
+	kbd_data->s1 = *((volatile uchar*)(CFG_STATUS1_BASE));
+	kbd_data->s2 = *((volatile uchar*)(CFG_STATUS2_BASE));
+
+	return kbd_data;
+}
+
+static int compare_magic (struct kbd_data_t *kbd_data, uchar *str)
+{
+	char s1 = str[0];
+	char s2;
+
+	if (s1 >= '0' && s1 <= '9')
+		s1 -= '0';
+	else if (s1 >= 'a' && s1 <= 'f')
+		s1 = s1 - 'a' + 10;
+	else if (s1 >= 'A' && s1 <= 'F')
+		s1 = s1 - 'A' + 10;
+	else
+		return -1;
+
+	if (((S1_ROT & kbd_data->s1) >> 4) != s1)
+		return -1;
+
+	s2 = (S2_Q | S2_M) & kbd_data->s2;
+
+	switch (str[1]) {
+	case 'q':
+	case 'Q':
+		if (s2 == S2_Q)
+			return -1;
+		break;
+	case 'm':
+	case 'M':
+		if (s2 == S2_M)
+			return -1;
+		break;
+	case '\0':
+		if (s2 == (S2_Q | S2_M))
+			return 0;
+	default:
+		return -1;
+	}
+
+	if (str[2])
+		return -1;
+
+	return 0;
+}
+
+static uchar *key_match (const struct kbd_data_t *kbd_data)
+{
+	uchar magic[sizeof (kbd_magic_prefix) + 1];
+	uchar *suffix;
+	uchar *kbd_magic_keys;
+
+	/*
+	 * The following string defines the characters that can be appended
+	 * to "key_magic" to form the names of environment variables that
+	 * hold "magic" key codes, i. e. such key codes that can cause
+	 * pre-boot actions. If the string is empty (""), then only
+	 * "key_magic" is checked (old behaviour); the string "125" causes
+	 * checks for "key_magic1", "key_magic2" and "key_magic5", etc.
+	 */
+	if ((kbd_magic_keys = getenv ("magic_keys")) == NULL)
+		kbd_magic_keys = "";
+
+	/* loop over all magic keys;
+	 * use '\0' suffix in case of empty string
+	 */
+	for (suffix = kbd_magic_keys; *suffix ||
+		     suffix == kbd_magic_keys; ++suffix) {
+		sprintf (magic, "%s%c", kbd_magic_prefix, *suffix);
+
+		if (compare_magic(kbd_data, getenv(magic)) == 0) {
+			uchar cmd_name[sizeof (kbd_command_prefix) + 1];
+			char *cmd;
+
+			sprintf (cmd_name, "%s%c", kbd_command_prefix, *suffix);
+			cmd = getenv (cmd_name);
+
+			return (cmd);
+		}
+	}
+
+	return (NULL);
+}
+
+#endif /* CONFIG_PREBOOT */
+
 int misc_init_f (void)
 {
+}
+
+int misc_init_r (void)
+{
+#ifdef CONFIG_PREBOOT
+	struct kbd_data_t kbd_data;
+	/* Decode keys */
+	uchar *str = strdup (key_match (get_keys (&kbd_data)));
+	/* Set or delete definition */
+	setenv ("preboot", str);
+	free (str);
+#endif /* CONFIG_PREBOOT */
+
 	return 0;
 }
 

common/Makefile

@@ -31,7 +31,7 @@ COBJS	= main.o ACEX1K.o altera.o bedbug.o circbuf.o \
 	  cmd_ace.o cmd_autoscript.o \
 	  cmd_bdinfo.o cmd_bedbug.o cmd_bmp.o cmd_boot.o cmd_bootm.o \
 	  cmd_cache.o cmd_console.o \
-	  cmd_date.o cmd_dcr.o cmd_diag.o cmd_doc.o cmd_dtt.o \
+	  cmd_date.o cmd_dcr.o cmd_diag.o cmd_display.o cmd_doc.o cmd_dtt.o \
 	  cmd_eeprom.o cmd_elf.o cmd_ext2.o \
 	  cmd_fat.o cmd_fdc.o cmd_fdos.o cmd_flash.o cmd_fpga.o \
 	  cmd_i2c.o cmd_ide.o cmd_immap.o cmd_itest.o cmd_jffs2.o \
@@ -39,10 +39,13 @@ COBJS	= main.o ACEX1K.o altera.o bedbug.o circbuf.o \
 	  cmd_mem.o cmd_mii.o cmd_misc.o cmd_mmc.o \
 	  cmd_nand.o cmd_net.o cmd_nvedit.o \
 	  cmd_pci.o cmd_pcmcia.o cmd_portio.o \
-	  cmd_reginfo.o cmd_reiser.o cmd_scsi.o cmd_spi.o cmd_universe.o cmd_usb.o cmd_vfd.o \
+	  cmd_reginfo.o cmd_reiser.o cmd_scsi.o cmd_spi.o cmd_universe.o \
+	  cmd_usb.o cmd_vfd.o \
 	  command.o console.o devices.o dlmalloc.o docecc.o \
 	  environment.o env_common.o \
-	  env_nand.o env_dataflash.o env_flash.o env_eeprom.o env_nvram.o env_nowhere.o exports.o \
+	  env_nand.o env_dataflash.o env_flash.o env_eeprom.o \
+	  env_nvram.o env_nowhere.o \
+	  exports.o \
 	  flash.o fpga.o \
 	  hush.o kgdb.o lcd.o lists.o lynxkdi.o \
 	  memsize.o miiphybb.o miiphyutil.o \

common/cmd_display.c

@@ -0,0 +1,82 @@
+/*
+ * (C) Copyright 2005
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_DISPLAY)
+
+#undef DEBUG_DISP
+
+#define DISP_SIZE	8
+#define CWORD_CLEAR	0x80
+#define CLEAR_DELAY	(110 * 2)
+
+int do_display (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	int i;
+	int pos;
+
+	/* Clear display */
+	*((volatile char*)(CFG_DISP_CWORD)) = CWORD_CLEAR;
+	udelay(1000 * CLEAR_DELAY);
+
+	if (argc < 2)
+		return (0);
+
+	for (pos = 0, i = 1; i < argc && pos < DISP_SIZE; i++) {
+		char *p = argv[i], c;
+
+		if (i > 1) {
+			*((volatile uchar *) (CFG_DISP_CHR_RAM + pos++)) = ' ';
+#ifdef DEBUG_DISP
+			putc(' ');
+#endif
+		}
+
+		while ((c = *p++) != '\0' && pos < DISP_SIZE) {
+			*((volatile uchar *) (CFG_DISP_CHR_RAM + pos++)) = c;
+#ifdef DEBUG_DISP
+			putc(c);
+#endif
+		}
+	}
+
+#ifdef DEBUG_DISP
+	putc('\n');
+#endif
+
+	return (0);
+}
+
+/***************************************************/
+
+U_BOOT_CMD(
+	display,	CFG_MAXARGS,	1,	do_display,
+	"display- display string on dot matrix display\n",
+	"[<string>]\n"
+	"    - with <string> argument: display <string> on dot matrix display\n"
+	"    - without arguments: clear dot matrix display\n"
+);
+
+#endif	/* CFG_CMD_DISPLAY */

include/cmd_confdefs.h

@@ -91,8 +91,9 @@
 #define CFG_CMD_CDP	0x0200000000000000ULL	/* Cisco Discovery Protocol 	*/
 #define CFG_CMD_XIMG	0x0400000000000000ULL	/* Load part of Multi Image	*/
 #define CFG_CMD_UNIVERSE 0x0800000000000000ULL	/* Tundra Universe Support      */
-#define CFG_CMD_EXT2    0x1000000000000000ULL	/* EXT2 Support                 */
+#define CFG_CMD_EXT2	0x1000000000000000ULL	/* EXT2 Support			*/
 #define CFG_CMD_SNTP	0x2000000000000000ULL	/* SNTP support			*/
+#define CFG_CMD_DISPLAY	0x4000000000000000ULL	/* Display support		*/
 
 #define CFG_CMD_ALL	0xFFFFFFFFFFFFFFFFULL	/* ALL commands			*/
 

include/configs/hmi1001.h

@@ -60,13 +60,14 @@
  */
 #define CONFIG_COMMANDS	       (CONFIG_CMD_DFL	| \
 				CFG_CMD_DATE	| \
+				CFG_CMD_DISPLAY	| \
 				CFG_CMD_DHCP	| \
 				CFG_CMD_EEPROM	| \
 				CFG_CMD_I2C	| \
 				CFG_CMD_IDE	| \
 				CFG_CMD_NFS	| \
 				CFG_CMD_PCI	| \
-				CFG_CMD_SNTP)
+				CFG_CMD_SNTP	)
 
 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
 #include <cmd_confdefs.h>
@@ -104,6 +105,8 @@
 
 #define CONFIG_BOOTCOMMAND	"run net_nfs"
 
+#define CONFIG_MISC_INIT_R	1
+
 /*
  * IPB Bus clocking configuration.
  */
@@ -166,6 +169,9 @@
 #define CFG_MBAR		0xF0000000
 #define CFG_SDRAM_BASE		0x00000000
 #define CFG_DEFAULT_MBAR	0x80000000
+#define CFG_DISPLAY_BASE	0x80600000
+#define CFG_STATUS1_BASE	0x80600200
+#define CFG_STATUS2_BASE	0x80600300
 
 /* Settings for XLB = 132 MHz */
 #define SDRAM_DDR	 1
@@ -269,8 +275,8 @@
 
 /* Display H1, Status Inputs, EPLD @0x80600000 */
 #define CFG_CS3_START		0x80600000
-#define CFG_CS3_SIZE		0x00000210
-#define CFG_CS3_CFG		0x9800
+#define CFG_CS3_SIZE		0x00100000
+#define CFG_CS3_CFG		0xffff9830
 
 #define CFG_CS_BURST		0x00000000
 #define CFG_CS_DEADCYCLE	0x33333333
@@ -325,4 +331,11 @@
 #define CONFIG_PCI_IO_PHYS	CONFIG_PCI_IO_BUS
 #define CONFIG_PCI_IO_SIZE	0x01000000
 
+/*---------------------------------------------------------------------*/
+/* Display addresses						       */
+/*---------------------------------------------------------------------*/
+
+#define CFG_DISP_CHR_RAM	(CFG_DISPLAY_BASE + 0x38)
+#define CFG_DISP_CWORD		(CFG_DISPLAY_BASE + 0x30)
+
 #endif /* __CONFIG_H */