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https://github.com/u-boot/u-boot.git
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Add keyboard and dot matrix display support for HMI1001 board.
This commit is contained in:
Wolfgang Denk
parent
7bc5ee0785
commit
9f96ae44c6
@ -156,8 +156,126 @@ int checkboard (void)
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return 0;
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}
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#ifdef CONFIG_PREBOOT
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static uchar kbd_magic_prefix[] = "key_magic";
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static uchar kbd_command_prefix[] = "key_cmd";
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#define S1_ROT 0xf0
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#define S2_Q 0x40
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#define S2_M 0x20
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struct kbd_data_t {
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char s1;
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char s2;
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};
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struct kbd_data_t* get_keys (struct kbd_data_t *kbd_data)
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{
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kbd_data->s1 = *((volatile uchar*)(CFG_STATUS1_BASE));
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kbd_data->s2 = *((volatile uchar*)(CFG_STATUS2_BASE));
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return kbd_data;
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}
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static int compare_magic (struct kbd_data_t *kbd_data, uchar *str)
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{
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char s1 = str[0];
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char s2;
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if (s1 >= '0' && s1 <= '9')
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s1 -= '0';
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else if (s1 >= 'a' && s1 <= 'f')
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s1 = s1 - 'a' + 10;
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else if (s1 >= 'A' && s1 <= 'F')
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s1 = s1 - 'A' + 10;
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else
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return -1;
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if (((S1_ROT & kbd_data->s1) >> 4) != s1)
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return -1;
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s2 = (S2_Q | S2_M) & kbd_data->s2;
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switch (str[1]) {
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case 'q':
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case 'Q':
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if (s2 == S2_Q)
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return -1;
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break;
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case 'm':
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case 'M':
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if (s2 == S2_M)
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return -1;
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break;
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case '\0':
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if (s2 == (S2_Q | S2_M))
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return 0;
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default:
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return -1;
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}
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if (str[2])
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return -1;
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return 0;
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}
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static uchar *key_match (const struct kbd_data_t *kbd_data)
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{
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uchar magic[sizeof (kbd_magic_prefix) + 1];
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uchar *suffix;
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uchar *kbd_magic_keys;
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/*
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* The following string defines the characters that can be appended
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* to "key_magic" to form the names of environment variables that
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* hold "magic" key codes, i. e. such key codes that can cause
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* pre-boot actions. If the string is empty (""), then only
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* "key_magic" is checked (old behaviour); the string "125" causes
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* checks for "key_magic1", "key_magic2" and "key_magic5", etc.
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*/
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if ((kbd_magic_keys = getenv ("magic_keys")) == NULL)
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kbd_magic_keys = "";
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/* loop over all magic keys;
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* use '\0' suffix in case of empty string
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*/
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for (suffix = kbd_magic_keys; *suffix ||
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suffix == kbd_magic_keys; ++suffix) {
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sprintf (magic, "%s%c", kbd_magic_prefix, *suffix);
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if (compare_magic(kbd_data, getenv(magic)) == 0) {
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uchar cmd_name[sizeof (kbd_command_prefix) + 1];
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char *cmd;
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sprintf (cmd_name, "%s%c", kbd_command_prefix, *suffix);
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cmd = getenv (cmd_name);
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return (cmd);
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}
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}
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return (NULL);
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}
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#endif /* CONFIG_PREBOOT */
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int misc_init_f (void)
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{
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}
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int misc_init_r (void)
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{
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#ifdef CONFIG_PREBOOT
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struct kbd_data_t kbd_data;
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/* Decode keys */
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uchar *str = strdup (key_match (get_keys (&kbd_data)));
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/* Set or delete definition */
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setenv ("preboot", str);
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free (str);
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#endif /* CONFIG_PREBOOT */
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return 0;
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}
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@ -31,7 +31,7 @@ COBJS = main.o ACEX1K.o altera.o bedbug.o circbuf.o \
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cmd_ace.o cmd_autoscript.o \
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cmd_bdinfo.o cmd_bedbug.o cmd_bmp.o cmd_boot.o cmd_bootm.o \
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cmd_cache.o cmd_console.o \
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cmd_date.o cmd_dcr.o cmd_diag.o cmd_doc.o cmd_dtt.o \
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cmd_date.o cmd_dcr.o cmd_diag.o cmd_display.o cmd_doc.o cmd_dtt.o \
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cmd_eeprom.o cmd_elf.o cmd_ext2.o \
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cmd_fat.o cmd_fdc.o cmd_fdos.o cmd_flash.o cmd_fpga.o \
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cmd_i2c.o cmd_ide.o cmd_immap.o cmd_itest.o cmd_jffs2.o \
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@ -39,10 +39,13 @@ COBJS = main.o ACEX1K.o altera.o bedbug.o circbuf.o \
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cmd_mem.o cmd_mii.o cmd_misc.o cmd_mmc.o \
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cmd_nand.o cmd_net.o cmd_nvedit.o \
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cmd_pci.o cmd_pcmcia.o cmd_portio.o \
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cmd_reginfo.o cmd_reiser.o cmd_scsi.o cmd_spi.o cmd_universe.o cmd_usb.o cmd_vfd.o \
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cmd_reginfo.o cmd_reiser.o cmd_scsi.o cmd_spi.o cmd_universe.o \
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cmd_usb.o cmd_vfd.o \
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command.o console.o devices.o dlmalloc.o docecc.o \
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environment.o env_common.o \
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env_nand.o env_dataflash.o env_flash.o env_eeprom.o env_nvram.o env_nowhere.o exports.o \
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env_nand.o env_dataflash.o env_flash.o env_eeprom.o \
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env_nvram.o env_nowhere.o \
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exports.o \
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flash.o fpga.o \
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hush.o kgdb.o lcd.o lists.o lynxkdi.o \
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memsize.o miiphybb.o miiphyutil.o \
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82
common/cmd_display.c
Normal file
82
common/cmd_display.c
Normal file
@ -0,0 +1,82 @@
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/*
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* (C) Copyright 2005
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#if (CONFIG_COMMANDS & CFG_CMD_DISPLAY)
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#undef DEBUG_DISP
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#define DISP_SIZE 8
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#define CWORD_CLEAR 0x80
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#define CLEAR_DELAY (110 * 2)
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int do_display (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
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{
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int i;
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int pos;
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/* Clear display */
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*((volatile char*)(CFG_DISP_CWORD)) = CWORD_CLEAR;
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udelay(1000 * CLEAR_DELAY);
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if (argc < 2)
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return (0);
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for (pos = 0, i = 1; i < argc && pos < DISP_SIZE; i++) {
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char *p = argv[i], c;
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if (i > 1) {
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*((volatile uchar *) (CFG_DISP_CHR_RAM + pos++)) = ' ';
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#ifdef DEBUG_DISP
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putc(' ');
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#endif
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}
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while ((c = *p++) != '\0' && pos < DISP_SIZE) {
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*((volatile uchar *) (CFG_DISP_CHR_RAM + pos++)) = c;
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#ifdef DEBUG_DISP
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putc(c);
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#endif
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}
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}
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#ifdef DEBUG_DISP
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putc('\n');
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#endif
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return (0);
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}
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/***************************************************/
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U_BOOT_CMD(
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display, CFG_MAXARGS, 1, do_display,
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"display- display string on dot matrix display\n",
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"[<string>]\n"
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" - with <string> argument: display <string> on dot matrix display\n"
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" - without arguments: clear dot matrix display\n"
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);
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#endif /* CFG_CMD_DISPLAY */
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@ -91,8 +91,9 @@
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#define CFG_CMD_CDP 0x0200000000000000ULL /* Cisco Discovery Protocol */
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#define CFG_CMD_XIMG 0x0400000000000000ULL /* Load part of Multi Image */
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#define CFG_CMD_UNIVERSE 0x0800000000000000ULL /* Tundra Universe Support */
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#define CFG_CMD_EXT2 0x1000000000000000ULL /* EXT2 Support */
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#define CFG_CMD_EXT2 0x1000000000000000ULL /* EXT2 Support */
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#define CFG_CMD_SNTP 0x2000000000000000ULL /* SNTP support */
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#define CFG_CMD_DISPLAY 0x4000000000000000ULL /* Display support */
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#define CFG_CMD_ALL 0xFFFFFFFFFFFFFFFFULL /* ALL commands */
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@ -60,13 +60,14 @@
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*/
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#define CONFIG_COMMANDS (CONFIG_CMD_DFL | \
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CFG_CMD_DATE | \
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CFG_CMD_DISPLAY | \
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CFG_CMD_DHCP | \
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CFG_CMD_EEPROM | \
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CFG_CMD_I2C | \
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CFG_CMD_IDE | \
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CFG_CMD_NFS | \
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CFG_CMD_PCI | \
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CFG_CMD_SNTP)
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CFG_CMD_SNTP )
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/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
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#include <cmd_confdefs.h>
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@ -104,6 +105,8 @@
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#define CONFIG_BOOTCOMMAND "run net_nfs"
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#define CONFIG_MISC_INIT_R 1
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/*
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* IPB Bus clocking configuration.
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*/
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@ -166,6 +169,9 @@
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#define CFG_MBAR 0xF0000000
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#define CFG_SDRAM_BASE 0x00000000
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#define CFG_DEFAULT_MBAR 0x80000000
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#define CFG_DISPLAY_BASE 0x80600000
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#define CFG_STATUS1_BASE 0x80600200
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#define CFG_STATUS2_BASE 0x80600300
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/* Settings for XLB = 132 MHz */
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#define SDRAM_DDR 1
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@ -269,8 +275,8 @@
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/* Display H1, Status Inputs, EPLD @0x80600000 */
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#define CFG_CS3_START 0x80600000
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#define CFG_CS3_SIZE 0x00000210
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#define CFG_CS3_CFG 0x9800
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#define CFG_CS3_SIZE 0x00100000
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#define CFG_CS3_CFG 0xffff9830
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#define CFG_CS_BURST 0x00000000
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#define CFG_CS_DEADCYCLE 0x33333333
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@ -325,4 +331,11 @@
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#define CONFIG_PCI_IO_PHYS CONFIG_PCI_IO_BUS
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#define CONFIG_PCI_IO_SIZE 0x01000000
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/*---------------------------------------------------------------------*/
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/* Display addresses */
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/*---------------------------------------------------------------------*/
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#define CFG_DISP_CHR_RAM (CFG_DISPLAY_BASE + 0x38)
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#define CFG_DISP_CWORD (CFG_DISPLAY_BASE + 0x30)
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#endif /* __CONFIG_H */
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