diff options
Diffstat (limited to 'drivers/i8042.c')
| -rw-r--r-- | drivers/i8042.c | 178 |
1 files changed, 89 insertions, 89 deletions
diff --git a/drivers/i8042.c b/drivers/i8042.c index ce24fc9301..e21978dc24 100644 --- a/drivers/i8042.c +++ b/drivers/i8042.c @@ -322,20 +322,20 @@ int i8042_kbd_init (void) keymap = KBD_US; if ((penv = getenv ("keymap")) != NULL) { - if (strncmp (penv, "de", 3) == 0) - keymap = KBD_GER; + if (strncmp (penv, "de", 3) == 0) + keymap = KBD_GER; } for (try = 0; try < KBD_RESET_TRIES; try++) { - if (kbd_reset() == 0) - { - kbd_mapping = keymap; - kbd_flags = NORMAL; - kbd_state = 0; - kbd_led_set(); - return 0; - } + if (kbd_reset() == 0) + { + kbd_mapping = keymap; + kbd_flags = NORMAL; + kbd_state = 0; + kbd_led_set(); + return 0; + } } return -1; } @@ -353,25 +353,25 @@ int i8042_tstc (void) #ifdef CONFIG_CONSOLE_CURSOR if (--blinkCount == 0) { - cursor_state ^= 1; - console_cursor (cursor_state); - blinkCount = CFG_CONSOLE_BLINK_COUNT; - udelay (10); + cursor_state ^= 1; + console_cursor (cursor_state); + blinkCount = CFG_CONSOLE_BLINK_COUNT; + udelay (10); } #endif if ((in8 (I8042_STATUS_REG) & 0x01) == 0) - return 0; + return 0; else { - scan_code = in8 (I8042_DATA_REG); - if (scan_code == 0xfa) - return 0; + scan_code = in8 (I8042_DATA_REG); + if (scan_code == 0xfa) + return 0; - kbd_conv_char(scan_code); + kbd_conv_char(scan_code); - if (kbd_input != -1) - return 1; + if (kbd_input != -1) + return 1; } return 0; } @@ -389,23 +389,23 @@ int i8042_getc (void) while (kbd_input == -1) { - while ((in8 (I8042_STATUS_REG) & 0x01) == 0) - { + while ((in8 (I8042_STATUS_REG) & 0x01) == 0) + { #ifdef CONFIG_CONSOLE_CURSOR - if (--blinkCount==0) - { - cursor_state ^= 1; - console_cursor (cursor_state); - blinkCount = CFG_CONSOLE_BLINK_COUNT; - } - udelay (10); + if (--blinkCount==0) + { + cursor_state ^= 1; + console_cursor (cursor_state); + blinkCount = CFG_CONSOLE_BLINK_COUNT; + } + udelay (10); #endif - } + } - scan_code = in8 (I8042_DATA_REG); + scan_code = in8 (I8042_DATA_REG); - if (scan_code != 0xfa) - kbd_conv_char (scan_code); + if (scan_code != 0xfa) + kbd_conv_char (scan_code); } ret_chr = kbd_input; kbd_input = -1; @@ -419,62 +419,62 @@ static void kbd_conv_char (unsigned char scan_code) { if (scan_code == 0xe0) { - kbd_flags |= EXT; - return; + kbd_flags |= EXT; + return; } /* if high bit of scan_code, set break flag */ if (scan_code & 0x80) - kbd_flags |= BRK; + kbd_flags |= BRK; else - kbd_flags &= ~BRK; + kbd_flags &= ~BRK; if ((scan_code == 0xe1) || (kbd_flags & E1)) { - if (scan_code == 0xe1) - { - kbd_flags ^= BRK; /* reset the break flag */ - kbd_flags ^= E1; /* bitwise EXOR with E1 flag */ - } - return; + if (scan_code == 0xe1) + { + kbd_flags ^= BRK; /* reset the break flag */ + kbd_flags ^= E1; /* bitwise EXOR with E1 flag */ + } + return; } scan_code &= 0x7f; if (kbd_flags & EXT) { - int i; - - kbd_flags ^= EXT; - for (i=0; ext_key_map[i]; i++) - { - if (ext_key_map[i] == scan_code) - { - scan_code = 0x80 + i; - break; - } - } - /* not found ? */ - if (!ext_key_map[i]) - return; + int i; + + kbd_flags ^= EXT; + for (i=0; ext_key_map[i]; i++) + { + if (ext_key_map[i] == scan_code) + { + scan_code = 0x80 + i; + break; + } + } + /* not found ? */ + if (!ext_key_map[i]) + return; } switch (kbd_fct_map [scan_code]) { case AS: kbd_normal (scan_code); - break; + break; case SH: kbd_shift (scan_code); - break; + break; case CN: kbd_ctrl (scan_code); - break; + break; case NM: kbd_num (scan_code); - break; + break; case CP: kbd_caps (scan_code); - break; + break; case ST: kbd_scroll (scan_code); - break; + break; case AK: kbd_alt (scan_code); - break; + break; } return; } @@ -490,14 +490,14 @@ static void kbd_normal (unsigned char scan_code) { chr = kbd_key_map [kbd_mapping][kbd_state][scan_code]; if ((chr == 0xff) || (chr == 0x00)) - { - return; - } + { + return; + } - /* if caps lock convert upper to lower */ - if (((kbd_flags & CAPS) == CAPS) && (chr >= 'a' && chr <= 'z')) + /* if caps lock convert upper to lower */ + if (((kbd_flags & CAPS) == CAPS) && (chr >= 'a' && chr <= 'z')) { - chr -= 'a' - 'A'; + chr -= 'a' - 'A'; } kbd_input = chr; } @@ -510,8 +510,8 @@ static void kbd_shift (unsigned char scan_code) { if ((kbd_flags & BRK) == BRK) { - kbd_state = AS; - kbd_flags &= (~SHIFT); + kbd_state = AS; + kbd_flags &= (~SHIFT); } else { @@ -569,12 +569,12 @@ static void kbd_scroll (unsigned char scan_code) { if ((kbd_flags & BRK) == NORMAL) { - kbd_flags ^= STP; - kbd_led_set (); /* update keyboard LED */ - if (kbd_flags & STP) - kbd_input = 0x13; - else - kbd_input = 0x11; + kbd_flags ^= STP; + kbd_led_set (); /* update keyboard LED */ + if (kbd_flags & STP) + kbd_input = 0x13; + else + kbd_input = 0x11; } } @@ -584,13 +584,13 @@ static void kbd_alt (unsigned char scan_code) { if ((kbd_flags & BRK) == BRK) { - kbd_state = AS; - kbd_flags &= (~ALT); + kbd_state = AS; + kbd_flags &= (~ALT); } else { - kbd_state = AK; - kbd_flags &= ALT; + kbd_state = AK; + kbd_flags &= ALT; } } @@ -614,7 +614,7 @@ static int kbd_input_empty (void) /* wait for input buf empty */ while ((in8 (I8042_STATUS_REG) & 0x02) && kbdTimeout--) - udelay(1000); + udelay(1000); return kbdTimeout; } @@ -624,30 +624,30 @@ static int kbd_input_empty (void) static int kbd_reset (void) { if (kbd_input_empty() == 0) - return -1; + return -1; out8 (I8042_DATA_REG, 0xff); udelay(250000); if (kbd_input_empty() == 0) - return -1; + return -1; out8 (I8042_DATA_REG, 0x60); if (kbd_input_empty() == 0) - return -1; + return -1; out8 (I8042_DATA_REG, 0x45); if (kbd_input_empty() == 0) - return -1; + return -1; out8 (I8042_COMMAND_REG, 0xae); if (kbd_input_empty() == 0) - return -1; + return -1; return 0; } |