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Add keyboard and dot matrix display support for HMI1001 board.

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This commit is contained in:
Wolfgang Denk 2005-08-30 13:04:12 +02:00
parent 7bc5ee0785
commit 9f96ae44c6
5 changed files with 224 additions and 7 deletions
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118
board/hmi1001/hmi1001.c
View File

@ -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;
}

9
common/Makefile
View File

@ -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 \

82
common/cmd_display.c Normal file
View File

@ -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 */

3
include/cmd_confdefs.h
View File

@ -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 */

19
include/configs/hmi1001.h
View File

@ -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 */