diff options
Diffstat (limited to 'drivers/char/consolemap.c')
| -rw-r--r-- | drivers/char/consolemap.c | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/char/consolemap.c b/drivers/char/consolemap.c index 4b3916f54909..6b104e45a322 100644 --- a/drivers/char/consolemap.c +++ b/drivers/char/consolemap.c @@ -494,12 +494,11 @@ int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui) p = (struct uni_pagedir *)*vc->vc_uni_pagedir_loc; if (p && p->readonly) return -EIO; if (!p || --p->refcount) { - q = kmalloc(sizeof(*p), GFP_KERNEL); + q = kzalloc(sizeof(*p), GFP_KERNEL); if (!q) { if (p) p->refcount++; return -ENOMEM; } - memset(q, 0, sizeof(*q)); q->refcount=1; *vc->vc_uni_pagedir_loc = (unsigned long)q; } else { @@ -670,19 +669,29 @@ void con_protect_unimap(struct vc_data *vc, int rdonly) p->readonly = rdonly; } +/* + * Always use USER_MAP. These functions are used by the keyboard, + * which shouldn't be affected by G0/G1 switching, etc. + * If the user map still contains default values, i.e. the + * direct-to-font mapping, then assume user is using Latin1. + */ /* may be called during an interrupt */ u32 conv_8bit_to_uni(unsigned char c) { - /* - * Always use USER_MAP. This function is used by the keyboard, - * which shouldn't be affected by G0/G1 switching, etc. - * If the user map still contains default values, i.e. the - * direct-to-font mapping, then assume user is using Latin1. - */ unsigned short uni = translations[USER_MAP][c]; return uni == (0xf000 | c) ? c : uni; } +int conv_uni_to_8bit(u32 uni) +{ + int c; + for (c = 0; c < 0x100; c++) + if (translations[USER_MAP][c] == uni || + (translations[USER_MAP][c] == (c | 0xf000) && uni == c)) + return c; + return -1; +} + int conv_uni_to_pc(struct vc_data *conp, long ucs) { |