| 1 | |
| 2 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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| 3 |
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| 4 | #include <linux/kernel.h>
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| 5 | #include <linux/console.h>
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| 6 | #include <linux/errno.h>
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| 7 | #include <linux/string.h>
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| 8 |
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| 9 | #include "console_cmdline.h"
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| 10 | #include "braille.h"
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| 11 |
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| 12 | int _braille_console_setup(char **str, char **brl_options)
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| 13 | {
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| 14 | size_t len;
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| 15 |
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| 16 | len = str_has_prefix(*str, "brl,");
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| 17 | if (len) {
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| 18 | *brl_options = "";
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| 19 | *str += len;
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| 20 | return 0;
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| 21 | }
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| 22 |
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| 23 | len = str_has_prefix(*str, "brl=");
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| 24 | if (len) {
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| 25 | *brl_options = *str + len;
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| 26 | *str = strchr(*brl_options, ',');
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| 27 | if (!*str) {
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| 28 | pr_err("need port name after brl=\n");
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| 29 | return -EINVAL;
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| 30 | }
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| 31 | *((*str)++) = 0;
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| 32 | }
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| 33 |
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| 34 | return 0;
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| 35 | }
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| 36 |
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| 37 | int
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| 38 | _braille_register_console(struct console *console, struct console_cmdline *c)
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| 39 | {
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| 40 | int rtn = 0;
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| 41 |
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| 42 | if (c->brl_options) {
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| 43 | console->flags |= CON_BRL;
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| 44 | rtn = braille_register_console(console, c->index, c->options,
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| 45 | c->brl_options);
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| 46 | }
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| 47 |
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| 48 | return rtn;
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| 49 | }
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| 50 |
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| 51 | int
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| 52 | _braille_unregister_console(struct console *console)
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| 53 | {
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| 54 | if (console->flags & CON_BRL)
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| 55 | return braille_unregister_console(console);
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| 56 |
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| 57 | return 0;
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| 58 | }
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