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1056 lines
26 KiB
1056 lines
26 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* Speakup kobject implementation |
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* |
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* Copyright (C) 2009 William Hubbs |
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* |
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* This code is based on kobject-example.c, which came with linux 2.6.x. |
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* |
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* Copyright (C) 2004-2007 Greg Kroah-Hartman <[email protected]> |
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* Copyright (C) 2007 Novell Inc. |
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* |
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* Released under the GPL version 2 only. |
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* |
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*/ |
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#include <linux/slab.h> /* For kmalloc. */ |
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#include <linux/kernel.h> |
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#include <linux/kobject.h> |
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#include <linux/string.h> |
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#include <linux/string_helpers.h> |
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#include <linux/sysfs.h> |
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#include <linux/ctype.h> |
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|
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#include "speakup.h" |
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#include "spk_priv.h" |
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|
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/* |
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* This is called when a user reads the characters or chartab sys file. |
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*/ |
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static ssize_t chars_chartab_show(struct kobject *kobj, |
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struct kobj_attribute *attr, char *buf) |
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{ |
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int i; |
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int len = 0; |
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char *cp; |
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char *buf_pointer = buf; |
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size_t bufsize = PAGE_SIZE; |
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unsigned long flags; |
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|
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spin_lock_irqsave(&speakup_info.spinlock, flags); |
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*buf_pointer = '\0'; |
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for (i = 0; i < 256; i++) { |
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if (bufsize <= 1) |
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break; |
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if (strcmp("characters", attr->attr.name) == 0) { |
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len = scnprintf(buf_pointer, bufsize, "%d\t%s\n", |
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i, spk_characters[i]); |
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} else { /* show chartab entry */ |
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if (IS_TYPE(i, B_CTL)) |
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cp = "B_CTL"; |
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else if (IS_TYPE(i, WDLM)) |
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cp = "WDLM"; |
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else if (IS_TYPE(i, A_PUNC)) |
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cp = "A_PUNC"; |
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else if (IS_TYPE(i, PUNC)) |
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cp = "PUNC"; |
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else if (IS_TYPE(i, NUM)) |
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cp = "NUM"; |
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else if (IS_TYPE(i, A_CAP)) |
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cp = "A_CAP"; |
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else if (IS_TYPE(i, ALPHA)) |
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cp = "ALPHA"; |
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else if (IS_TYPE(i, B_CAPSYM)) |
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cp = "B_CAPSYM"; |
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else if (IS_TYPE(i, B_SYM)) |
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cp = "B_SYM"; |
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else |
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cp = "0"; |
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len = |
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scnprintf(buf_pointer, bufsize, "%d\t%s\n", i, cp); |
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} |
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bufsize -= len; |
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buf_pointer += len; |
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} |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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return buf_pointer - buf; |
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} |
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|
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/* |
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* Print informational messages or warnings after updating |
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* character descriptions or chartab entries. |
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*/ |
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static void report_char_chartab_status(int reset, int received, int used, |
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int rejected, int do_characters) |
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{ |
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static char const *object_type[] = { |
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"character class entries", |
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"character descriptions", |
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}; |
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int len; |
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char buf[80]; |
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|
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if (reset) { |
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pr_info("%s reset to defaults\n", object_type[do_characters]); |
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} else if (received) { |
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len = snprintf(buf, sizeof(buf), |
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" updated %d of %d %s\n", |
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used, received, object_type[do_characters]); |
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if (rejected) |
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snprintf(buf + (len - 1), sizeof(buf) - (len - 1), |
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" with %d reject%s\n", |
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rejected, rejected > 1 ? "s" : ""); |
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pr_info("%s", buf); |
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} |
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} |
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|
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/* |
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* This is called when a user changes the characters or chartab parameters. |
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*/ |
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static ssize_t chars_chartab_store(struct kobject *kobj, |
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struct kobj_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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char *cp = (char *)buf; |
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char *end = cp + count; /* the null at the end of the buffer */ |
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char *linefeed = NULL; |
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char keyword[MAX_DESC_LEN + 1]; |
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char *outptr = NULL; /* Will hold keyword or desc. */ |
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char *temp = NULL; |
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char *desc = NULL; |
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ssize_t retval = count; |
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unsigned long flags; |
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unsigned long index = 0; |
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int charclass = 0; |
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int received = 0; |
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int used = 0; |
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int rejected = 0; |
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int reset = 0; |
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int do_characters = !strcmp(attr->attr.name, "characters"); |
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size_t desc_length = 0; |
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int i; |
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|
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spin_lock_irqsave(&speakup_info.spinlock, flags); |
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while (cp < end) { |
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while ((cp < end) && (*cp == ' ' || *cp == '\t')) |
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cp++; |
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|
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if (cp == end) |
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break; |
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if ((*cp == '\n') || strchr("dDrR", *cp)) { |
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reset = 1; |
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break; |
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} |
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received++; |
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|
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linefeed = strchr(cp, '\n'); |
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if (!linefeed) { |
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rejected++; |
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break; |
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} |
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|
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if (!isdigit(*cp)) { |
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rejected++; |
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cp = linefeed + 1; |
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continue; |
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} |
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|
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/* |
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* Do not replace with kstrtoul: |
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* here we need temp to be updated |
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*/ |
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index = simple_strtoul(cp, &temp, 10); |
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if (index > 255) { |
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rejected++; |
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cp = linefeed + 1; |
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continue; |
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} |
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|
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while ((temp < linefeed) && (*temp == ' ' || *temp == '\t')) |
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temp++; |
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|
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desc_length = linefeed - temp; |
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if (desc_length > MAX_DESC_LEN) { |
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rejected++; |
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cp = linefeed + 1; |
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continue; |
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} |
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if (do_characters) { |
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desc = kmalloc(desc_length + 1, GFP_ATOMIC); |
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if (!desc) { |
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retval = -ENOMEM; |
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reset = 1; /* just reset on error. */ |
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break; |
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} |
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outptr = desc; |
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} else { |
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outptr = keyword; |
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} |
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|
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for (i = 0; i < desc_length; i++) |
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outptr[i] = temp[i]; |
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outptr[desc_length] = '\0'; |
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|
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if (do_characters) { |
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if (spk_characters[index] != spk_default_chars[index]) |
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kfree(spk_characters[index]); |
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spk_characters[index] = desc; |
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used++; |
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} else { |
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charclass = spk_chartab_get_value(keyword); |
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if (charclass == 0) { |
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rejected++; |
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cp = linefeed + 1; |
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continue; |
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} |
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if (charclass != spk_chartab[index]) { |
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spk_chartab[index] = charclass; |
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used++; |
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} |
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} |
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cp = linefeed + 1; |
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} |
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if (reset) { |
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if (do_characters) |
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spk_reset_default_chars(); |
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else |
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spk_reset_default_chartab(); |
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} |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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report_char_chartab_status(reset, received, used, rejected, |
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do_characters); |
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return retval; |
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} |
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|
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/* |
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* This is called when a user reads the keymap parameter. |
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*/ |
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static ssize_t keymap_show(struct kobject *kobj, struct kobj_attribute *attr, |
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char *buf) |
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{ |
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char *cp = buf; |
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int i; |
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int n; |
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int num_keys; |
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int nstates; |
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u_char *cp1; |
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u_char ch; |
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unsigned long flags; |
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spin_lock_irqsave(&speakup_info.spinlock, flags); |
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cp1 = spk_key_buf + SHIFT_TBL_SIZE; |
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num_keys = (int)(*cp1); |
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nstates = (int)cp1[1]; |
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cp += sprintf(cp, "%d, %d, %d,\n", KEY_MAP_VER, num_keys, nstates); |
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cp1 += 2; /* now pointing at shift states */ |
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/* dump num_keys+1 as first row is shift states + flags, |
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* each subsequent row is key + states |
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*/ |
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for (n = 0; n <= num_keys; n++) { |
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for (i = 0; i <= nstates; i++) { |
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ch = *cp1++; |
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cp += sprintf(cp, "%d,", (int)ch); |
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*cp++ = (i < nstates) ? SPACE : '\n'; |
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} |
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} |
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cp += sprintf(cp, "0, %d\n", KEY_MAP_VER); |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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return (int)(cp - buf); |
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} |
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|
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/* |
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* This is called when a user changes the keymap parameter. |
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*/ |
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static ssize_t keymap_store(struct kobject *kobj, struct kobj_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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int i; |
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ssize_t ret = count; |
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char *in_buff = NULL; |
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char *cp; |
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u_char *cp1; |
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unsigned long flags; |
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|
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spin_lock_irqsave(&speakup_info.spinlock, flags); |
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in_buff = kmemdup(buf, count + 1, GFP_ATOMIC); |
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if (!in_buff) { |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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return -ENOMEM; |
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} |
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if (strchr("dDrR", *in_buff)) { |
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spk_set_key_info(spk_key_defaults, spk_key_buf); |
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pr_info("keymap set to default values\n"); |
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kfree(in_buff); |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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return count; |
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} |
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if (in_buff[count - 1] == '\n') |
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in_buff[count - 1] = '\0'; |
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cp = in_buff; |
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cp1 = (u_char *)in_buff; |
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for (i = 0; i < 3; i++) { |
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cp = spk_s2uchar(cp, cp1); |
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cp1++; |
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} |
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i = (int)cp1[-2] + 1; |
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i *= (int)cp1[-1] + 1; |
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i += 2; /* 0 and last map ver */ |
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if (cp1[-3] != KEY_MAP_VER || cp1[-1] > 10 || |
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i + SHIFT_TBL_SIZE + 4 >= sizeof(spk_key_buf)) { |
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pr_warn("i %d %d %d %d\n", i, |
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(int)cp1[-3], (int)cp1[-2], (int)cp1[-1]); |
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kfree(in_buff); |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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return -EINVAL; |
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} |
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while (--i >= 0) { |
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cp = spk_s2uchar(cp, cp1); |
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cp1++; |
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if (!(*cp)) |
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break; |
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} |
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if (i != 0 || cp1[-1] != KEY_MAP_VER || cp1[-2] != 0) { |
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ret = -EINVAL; |
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pr_warn("end %d %d %d %d\n", i, |
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(int)cp1[-3], (int)cp1[-2], (int)cp1[-1]); |
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} else { |
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if (spk_set_key_info(in_buff, spk_key_buf)) { |
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spk_set_key_info(spk_key_defaults, spk_key_buf); |
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ret = -EINVAL; |
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pr_warn("set key failed\n"); |
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} |
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} |
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kfree(in_buff); |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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return ret; |
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} |
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|
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/* |
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* This is called when a user changes the value of the silent parameter. |
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*/ |
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static ssize_t silent_store(struct kobject *kobj, struct kobj_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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int len; |
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struct vc_data *vc = vc_cons[fg_console].d; |
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char ch = 0; |
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char shut; |
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unsigned long flags; |
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|
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len = strlen(buf); |
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if (len > 0 && len < 3) { |
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ch = buf[0]; |
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if (ch == '\n') |
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ch = '0'; |
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} |
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if (ch < '0' || ch > '7') { |
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pr_warn("silent value '%c' not in range (0,7)\n", ch); |
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return -EINVAL; |
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} |
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spin_lock_irqsave(&speakup_info.spinlock, flags); |
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if (ch & 2) { |
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shut = 1; |
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spk_do_flush(); |
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} else { |
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shut = 0; |
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} |
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if (ch & 4) |
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shut |= 0x40; |
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if (ch & 1) |
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spk_shut_up |= shut; |
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else |
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spk_shut_up &= ~shut; |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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return count; |
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} |
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|
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/* |
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* This is called when a user reads the synth setting. |
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*/ |
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static ssize_t synth_show(struct kobject *kobj, struct kobj_attribute *attr, |
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char *buf) |
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{ |
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int rv; |
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|
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if (!synth) |
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rv = sprintf(buf, "%s\n", "none"); |
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else |
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rv = sprintf(buf, "%s\n", synth->name); |
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return rv; |
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} |
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|
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/* |
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* This is called when a user requests to change synthesizers. |
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*/ |
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static ssize_t synth_store(struct kobject *kobj, struct kobj_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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int len; |
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char new_synth_name[10]; |
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|
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len = strlen(buf); |
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if (len < 2 || len > 9) |
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return -EINVAL; |
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memcpy(new_synth_name, buf, len); |
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if (new_synth_name[len - 1] == '\n') |
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len--; |
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new_synth_name[len] = '\0'; |
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spk_strlwr(new_synth_name); |
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if (synth && !strcmp(new_synth_name, synth->name)) { |
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pr_warn("%s already in use\n", new_synth_name); |
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} else if (synth_init(new_synth_name) != 0) { |
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pr_warn("failed to init synth %s\n", new_synth_name); |
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return -ENODEV; |
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} |
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return count; |
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} |
|
|
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/* |
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* This is called when text is sent to the synth via the synth_direct file. |
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*/ |
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static ssize_t synth_direct_store(struct kobject *kobj, |
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struct kobj_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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u_char tmp[256]; |
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int len; |
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int bytes; |
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const char *ptr = buf; |
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unsigned long flags; |
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|
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if (!synth) |
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return -EPERM; |
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|
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len = strlen(buf); |
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spin_lock_irqsave(&speakup_info.spinlock, flags); |
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while (len > 0) { |
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bytes = min_t(size_t, len, 250); |
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strncpy(tmp, ptr, bytes); |
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tmp[bytes] = '\0'; |
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string_unescape_any_inplace(tmp); |
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synth_printf("%s", tmp); |
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ptr += bytes; |
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len -= bytes; |
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} |
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spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
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return count; |
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} |
|
|
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/* |
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* This function is called when a user reads the version. |
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*/ |
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static ssize_t version_show(struct kobject *kobj, struct kobj_attribute *attr, |
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char *buf) |
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{ |
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char *cp; |
|
|
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cp = buf; |
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cp += sprintf(cp, "Speakup version %s\n", SPEAKUP_VERSION); |
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if (synth) |
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cp += sprintf(cp, "%s synthesizer driver version %s\n", |
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synth->name, synth->version); |
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return cp - buf; |
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} |
|
|
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/* |
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* This is called when a user reads the punctuation settings. |
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*/ |
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static ssize_t punc_show(struct kobject *kobj, struct kobj_attribute *attr, |
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char *buf) |
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{ |
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int i; |
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char *cp = buf; |
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struct st_var_header *p_header; |
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struct punc_var_t *var; |
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struct st_bits_data *pb; |
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short mask; |
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unsigned long flags; |
|
|
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p_header = spk_var_header_by_name(attr->attr.name); |
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if (!p_header) { |
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pr_warn("p_header is null, attr->attr.name is %s\n", |
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attr->attr.name); |
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return -EINVAL; |
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} |
|
|
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var = spk_get_punc_var(p_header->var_id); |
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if (!var) { |
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pr_warn("var is null, p_header->var_id is %i\n", |
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p_header->var_id); |
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return -EINVAL; |
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} |
|
|
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spin_lock_irqsave(&speakup_info.spinlock, flags); |
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pb = (struct st_bits_data *)&spk_punc_info[var->value]; |
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mask = pb->mask; |
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for (i = 33; i < 128; i++) { |
|
if (!(spk_chartab[i] & mask)) |
|
continue; |
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*cp++ = (char)i; |
|
} |
|
spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
|
return cp - buf; |
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} |
|
|
|
/* |
|
* This is called when a user changes the punctuation settings. |
|
*/ |
|
static ssize_t punc_store(struct kobject *kobj, struct kobj_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
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int x; |
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struct st_var_header *p_header; |
|
struct punc_var_t *var; |
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char punc_buf[100]; |
|
unsigned long flags; |
|
|
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x = strlen(buf); |
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if (x < 1 || x > 99) |
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return -EINVAL; |
|
|
|
p_header = spk_var_header_by_name(attr->attr.name); |
|
if (!p_header) { |
|
pr_warn("p_header is null, attr->attr.name is %s\n", |
|
attr->attr.name); |
|
return -EINVAL; |
|
} |
|
|
|
var = spk_get_punc_var(p_header->var_id); |
|
if (!var) { |
|
pr_warn("var is null, p_header->var_id is %i\n", |
|
p_header->var_id); |
|
return -EINVAL; |
|
} |
|
|
|
memcpy(punc_buf, buf, x); |
|
|
|
while (x && punc_buf[x - 1] == '\n') |
|
x--; |
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punc_buf[x] = '\0'; |
|
|
|
spin_lock_irqsave(&speakup_info.spinlock, flags); |
|
|
|
if (*punc_buf == 'd' || *punc_buf == 'r') |
|
x = spk_set_mask_bits(NULL, var->value, 3); |
|
else |
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x = spk_set_mask_bits(punc_buf, var->value, 3); |
|
|
|
spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
|
return count; |
|
} |
|
|
|
/* |
|
* This function is called when a user reads one of the variable parameters. |
|
*/ |
|
ssize_t spk_var_show(struct kobject *kobj, struct kobj_attribute *attr, |
|
char *buf) |
|
{ |
|
int rv = 0; |
|
struct st_var_header *param; |
|
struct var_t *var; |
|
char *cp1; |
|
char *cp; |
|
char ch; |
|
unsigned long flags; |
|
|
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param = spk_var_header_by_name(attr->attr.name); |
|
if (!param) |
|
return -EINVAL; |
|
|
|
spin_lock_irqsave(&speakup_info.spinlock, flags); |
|
var = (struct var_t *)param->data; |
|
switch (param->var_type) { |
|
case VAR_NUM: |
|
case VAR_TIME: |
|
if (var) |
|
rv = sprintf(buf, "%i\n", var->u.n.value); |
|
else |
|
rv = sprintf(buf, "0\n"); |
|
break; |
|
case VAR_STRING: |
|
if (var) { |
|
cp1 = buf; |
|
*cp1++ = '"'; |
|
for (cp = (char *)param->p_val; (ch = *cp); cp++) { |
|
if (ch >= ' ' && ch < '~') |
|
*cp1++ = ch; |
|
else |
|
cp1 += sprintf(cp1, "\\x%02x", ch); |
|
} |
|
*cp1++ = '"'; |
|
*cp1++ = '\n'; |
|
*cp1 = '\0'; |
|
rv = cp1 - buf; |
|
} else { |
|
rv = sprintf(buf, "\"\"\n"); |
|
} |
|
break; |
|
default: |
|
rv = sprintf(buf, "Bad parameter %s, type %i\n", |
|
param->name, param->var_type); |
|
break; |
|
} |
|
spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
|
return rv; |
|
} |
|
EXPORT_SYMBOL_GPL(spk_var_show); |
|
|
|
/* |
|
* Used to reset either default_pitch or default_vol. |
|
*/ |
|
static inline void spk_reset_default_value(char *header_name, |
|
int *synth_default_value, int idx) |
|
{ |
|
struct st_var_header *param; |
|
|
|
if (synth && synth_default_value) { |
|
param = spk_var_header_by_name(header_name); |
|
if (param) { |
|
spk_set_num_var(synth_default_value[idx], |
|
param, E_NEW_DEFAULT); |
|
spk_set_num_var(0, param, E_DEFAULT); |
|
pr_info("%s reset to default value\n", param->name); |
|
} |
|
} |
|
} |
|
|
|
/* |
|
* This function is called when a user echos a value to one of the |
|
* variable parameters. |
|
*/ |
|
ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
struct st_var_header *param; |
|
int ret; |
|
int len; |
|
char *cp; |
|
struct var_t *var_data; |
|
long value; |
|
unsigned long flags; |
|
|
|
param = spk_var_header_by_name(attr->attr.name); |
|
if (!param) |
|
return -EINVAL; |
|
if (!param->data) |
|
return 0; |
|
ret = 0; |
|
cp = (char *)buf; |
|
string_unescape_any_inplace(cp); |
|
|
|
spin_lock_irqsave(&speakup_info.spinlock, flags); |
|
switch (param->var_type) { |
|
case VAR_NUM: |
|
case VAR_TIME: |
|
if (*cp == 'd' || *cp == 'r' || *cp == '\0') |
|
len = E_DEFAULT; |
|
else if (*cp == '+' || *cp == '-') |
|
len = E_INC; |
|
else |
|
len = E_SET; |
|
if (kstrtol(cp, 10, &value) == 0) |
|
ret = spk_set_num_var(value, param, len); |
|
else |
|
pr_warn("overflow or parsing error has occurred"); |
|
if (ret == -ERANGE) { |
|
var_data = param->data; |
|
pr_warn("value for %s out of range, expect %d to %d\n", |
|
param->name, |
|
var_data->u.n.low, var_data->u.n.high); |
|
} |
|
|
|
/* |
|
* If voice was just changed, we might need to reset our default |
|
* pitch and volume. |
|
*/ |
|
if (param->var_id == VOICE && synth && |
|
(ret == 0 || ret == -ERESTART)) { |
|
var_data = param->data; |
|
value = var_data->u.n.value; |
|
spk_reset_default_value("pitch", synth->default_pitch, |
|
value); |
|
spk_reset_default_value("vol", synth->default_vol, |
|
value); |
|
} |
|
break; |
|
case VAR_STRING: |
|
len = strlen(cp); |
|
if ((len >= 1) && (cp[len - 1] == '\n')) |
|
--len; |
|
if ((len >= 2) && (cp[0] == '"') && (cp[len - 1] == '"')) { |
|
++cp; |
|
len -= 2; |
|
} |
|
cp[len] = '\0'; |
|
ret = spk_set_string_var(cp, param, len); |
|
if (ret == -E2BIG) |
|
pr_warn("value too long for %s\n", |
|
param->name); |
|
break; |
|
default: |
|
pr_warn("%s unknown type %d\n", |
|
param->name, (int)param->var_type); |
|
break; |
|
} |
|
spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
|
|
|
if (ret == -ERESTART) |
|
pr_info("%s reset to default value\n", param->name); |
|
return count; |
|
} |
|
EXPORT_SYMBOL_GPL(spk_var_store); |
|
|
|
/* |
|
* Functions for reading and writing lists of i18n messages. Incomplete. |
|
*/ |
|
|
|
static ssize_t message_show_helper(char *buf, enum msg_index_t first, |
|
enum msg_index_t last) |
|
{ |
|
size_t bufsize = PAGE_SIZE; |
|
char *buf_pointer = buf; |
|
int printed; |
|
enum msg_index_t cursor; |
|
int index = 0; |
|
*buf_pointer = '\0'; /* buf_pointer always looking at a NUL byte. */ |
|
|
|
for (cursor = first; cursor <= last; cursor++, index++) { |
|
if (bufsize <= 1) |
|
break; |
|
printed = scnprintf(buf_pointer, bufsize, "%d\t%s\n", |
|
index, spk_msg_get(cursor)); |
|
buf_pointer += printed; |
|
bufsize -= printed; |
|
} |
|
|
|
return buf_pointer - buf; |
|
} |
|
|
|
static void report_msg_status(int reset, int received, int used, |
|
int rejected, char *groupname) |
|
{ |
|
int len; |
|
char buf[160]; |
|
|
|
if (reset) { |
|
pr_info("i18n messages from group %s reset to defaults\n", |
|
groupname); |
|
} else if (received) { |
|
len = snprintf(buf, sizeof(buf), |
|
" updated %d of %d i18n messages from group %s\n", |
|
used, received, groupname); |
|
if (rejected) |
|
snprintf(buf + (len - 1), sizeof(buf) - (len - 1), |
|
" with %d reject%s\n", |
|
rejected, rejected > 1 ? "s" : ""); |
|
pr_info("%s", buf); |
|
} |
|
} |
|
|
|
static ssize_t message_store_helper(const char *buf, size_t count, |
|
struct msg_group_t *group) |
|
{ |
|
char *cp = (char *)buf; |
|
char *end = cp + count; |
|
char *linefeed = NULL; |
|
char *temp = NULL; |
|
ssize_t msg_stored = 0; |
|
ssize_t retval = count; |
|
size_t desc_length = 0; |
|
unsigned long index = 0; |
|
int received = 0; |
|
int used = 0; |
|
int rejected = 0; |
|
int reset = 0; |
|
enum msg_index_t firstmessage = group->start; |
|
enum msg_index_t lastmessage = group->end; |
|
enum msg_index_t curmessage; |
|
|
|
while (cp < end) { |
|
while ((cp < end) && (*cp == ' ' || *cp == '\t')) |
|
cp++; |
|
|
|
if (cp == end) |
|
break; |
|
if (strchr("dDrR", *cp)) { |
|
reset = 1; |
|
break; |
|
} |
|
received++; |
|
|
|
linefeed = strchr(cp, '\n'); |
|
if (!linefeed) { |
|
rejected++; |
|
break; |
|
} |
|
|
|
if (!isdigit(*cp)) { |
|
rejected++; |
|
cp = linefeed + 1; |
|
continue; |
|
} |
|
|
|
/* |
|
* Do not replace with kstrtoul: |
|
* here we need temp to be updated |
|
*/ |
|
index = simple_strtoul(cp, &temp, 10); |
|
|
|
while ((temp < linefeed) && (*temp == ' ' || *temp == '\t')) |
|
temp++; |
|
|
|
desc_length = linefeed - temp; |
|
curmessage = firstmessage + index; |
|
|
|
/* |
|
* Note the check (curmessage < firstmessage). It is not |
|
* redundant. Suppose that the user gave us an index |
|
* equal to ULONG_MAX - 1. If firstmessage > 1, then |
|
* firstmessage + index < firstmessage! |
|
*/ |
|
|
|
if ((curmessage < firstmessage) || (curmessage > lastmessage)) { |
|
rejected++; |
|
cp = linefeed + 1; |
|
continue; |
|
} |
|
|
|
msg_stored = spk_msg_set(curmessage, temp, desc_length); |
|
if (msg_stored < 0) { |
|
retval = msg_stored; |
|
if (msg_stored == -ENOMEM) |
|
reset = 1; |
|
break; |
|
} |
|
|
|
used++; |
|
|
|
cp = linefeed + 1; |
|
} |
|
|
|
if (reset) |
|
spk_reset_msg_group(group); |
|
|
|
report_msg_status(reset, received, used, rejected, group->name); |
|
return retval; |
|
} |
|
|
|
static ssize_t message_show(struct kobject *kobj, |
|
struct kobj_attribute *attr, char *buf) |
|
{ |
|
ssize_t retval = 0; |
|
struct msg_group_t *group = spk_find_msg_group(attr->attr.name); |
|
unsigned long flags; |
|
|
|
if (WARN_ON(!group)) |
|
return -EINVAL; |
|
|
|
spin_lock_irqsave(&speakup_info.spinlock, flags); |
|
retval = message_show_helper(buf, group->start, group->end); |
|
spin_unlock_irqrestore(&speakup_info.spinlock, flags); |
|
return retval; |
|
} |
|
|
|
static ssize_t message_store(struct kobject *kobj, struct kobj_attribute *attr, |
|
const char *buf, size_t count) |
|
{ |
|
struct msg_group_t *group = spk_find_msg_group(attr->attr.name); |
|
|
|
if (WARN_ON(!group)) |
|
return -EINVAL; |
|
|
|
return message_store_helper(buf, count, group); |
|
} |
|
|
|
/* |
|
* Declare the attributes. |
|
*/ |
|
static struct kobj_attribute keymap_attribute = |
|
__ATTR_RW(keymap); |
|
static struct kobj_attribute silent_attribute = |
|
__ATTR_WO(silent); |
|
static struct kobj_attribute synth_attribute = |
|
__ATTR_RW(synth); |
|
static struct kobj_attribute synth_direct_attribute = |
|
__ATTR_WO(synth_direct); |
|
static struct kobj_attribute version_attribute = |
|
__ATTR_RO(version); |
|
|
|
static struct kobj_attribute delimiters_attribute = |
|
__ATTR(delimiters, 0644, punc_show, punc_store); |
|
static struct kobj_attribute ex_num_attribute = |
|
__ATTR(ex_num, 0644, punc_show, punc_store); |
|
static struct kobj_attribute punc_all_attribute = |
|
__ATTR(punc_all, 0644, punc_show, punc_store); |
|
static struct kobj_attribute punc_most_attribute = |
|
__ATTR(punc_most, 0644, punc_show, punc_store); |
|
static struct kobj_attribute punc_some_attribute = |
|
__ATTR(punc_some, 0644, punc_show, punc_store); |
|
static struct kobj_attribute repeats_attribute = |
|
__ATTR(repeats, 0644, punc_show, punc_store); |
|
|
|
static struct kobj_attribute attrib_bleep_attribute = |
|
__ATTR(attrib_bleep, 0644, spk_var_show, spk_var_store); |
|
static struct kobj_attribute bell_pos_attribute = |
|
__ATTR(bell_pos, 0644, spk_var_show, spk_var_store); |
|
static struct kobj_attribute bleep_time_attribute = |
|
__ATTR(bleep_time, 0644, spk_var_show, spk_var_store); |
|
static struct kobj_attribute bleeps_attribute = |
|
__ATTR(bleeps, 0644, spk_var_show, spk_var_store); |
|
static struct kobj_attribute cursor_time_attribute = |
|
__ATTR(cursor_time, 0644, spk_var_show, spk_var_store); |
|
static struct kobj_attribute key_echo_attribute = |
|
__ATTR(key_echo, 0644, spk_var_show, spk_var_store); |
|
static struct kobj_attribute no_interrupt_attribute = |
|
__ATTR(no_interrupt, 0644, spk_var_show, spk_var_store); |
|
static struct kobj_attribute punc_level_attribute = |
|
__ATTR(punc_level, 0644, spk_var_show, spk_var_store); |
|
static struct kobj_attribute reading_punc_attribute = |
|
__ATTR(reading_punc, 0644, spk_var_show, spk_var_store); |
|
static struct kobj_attribute say_control_attribute = |
|
__ATTR(say_control, 0644, spk_var_show, spk_var_store); |
|
static struct kobj_attribute say_word_ctl_attribute = |
|
__ATTR(say_word_ctl, 0644, spk_var_show, spk_var_store); |
|
static struct kobj_attribute spell_delay_attribute = |
|
__ATTR(spell_delay, 0644, spk_var_show, spk_var_store); |
|
|
|
/* |
|
* These attributes are i18n related. |
|
*/ |
|
static struct kobj_attribute announcements_attribute = |
|
__ATTR(announcements, 0644, message_show, message_store); |
|
static struct kobj_attribute characters_attribute = |
|
__ATTR(characters, 0644, chars_chartab_show, |
|
chars_chartab_store); |
|
static struct kobj_attribute chartab_attribute = |
|
__ATTR(chartab, 0644, chars_chartab_show, |
|
chars_chartab_store); |
|
static struct kobj_attribute ctl_keys_attribute = |
|
__ATTR(ctl_keys, 0644, message_show, message_store); |
|
static struct kobj_attribute colors_attribute = |
|
__ATTR(colors, 0644, message_show, message_store); |
|
static struct kobj_attribute formatted_attribute = |
|
__ATTR(formatted, 0644, message_show, message_store); |
|
static struct kobj_attribute function_names_attribute = |
|
__ATTR(function_names, 0644, message_show, message_store); |
|
static struct kobj_attribute key_names_attribute = |
|
__ATTR(key_names, 0644, message_show, message_store); |
|
static struct kobj_attribute states_attribute = |
|
__ATTR(states, 0644, message_show, message_store); |
|
|
|
/* |
|
* Create groups of attributes so that we can create and destroy them all |
|
* at once. |
|
*/ |
|
static struct attribute *main_attrs[] = { |
|
&keymap_attribute.attr, |
|
&silent_attribute.attr, |
|
&synth_attribute.attr, |
|
&synth_direct_attribute.attr, |
|
&version_attribute.attr, |
|
&delimiters_attribute.attr, |
|
&ex_num_attribute.attr, |
|
&punc_all_attribute.attr, |
|
&punc_most_attribute.attr, |
|
&punc_some_attribute.attr, |
|
&repeats_attribute.attr, |
|
&attrib_bleep_attribute.attr, |
|
&bell_pos_attribute.attr, |
|
&bleep_time_attribute.attr, |
|
&bleeps_attribute.attr, |
|
&cursor_time_attribute.attr, |
|
&key_echo_attribute.attr, |
|
&no_interrupt_attribute.attr, |
|
&punc_level_attribute.attr, |
|
&reading_punc_attribute.attr, |
|
&say_control_attribute.attr, |
|
&say_word_ctl_attribute.attr, |
|
&spell_delay_attribute.attr, |
|
NULL, |
|
}; |
|
|
|
static struct attribute *i18n_attrs[] = { |
|
&announcements_attribute.attr, |
|
&characters_attribute.attr, |
|
&chartab_attribute.attr, |
|
&ctl_keys_attribute.attr, |
|
&colors_attribute.attr, |
|
&formatted_attribute.attr, |
|
&function_names_attribute.attr, |
|
&key_names_attribute.attr, |
|
&states_attribute.attr, |
|
NULL, |
|
}; |
|
|
|
/* |
|
* An unnamed attribute group will put all of the attributes directly in |
|
* the kobject directory. If we specify a name, a subdirectory will be |
|
* created for the attributes with the directory being the name of the |
|
* attribute group. |
|
*/ |
|
static const struct attribute_group main_attr_group = { |
|
.attrs = main_attrs, |
|
}; |
|
|
|
static const struct attribute_group i18n_attr_group = { |
|
.attrs = i18n_attrs, |
|
.name = "i18n", |
|
}; |
|
|
|
static struct kobject *accessibility_kobj; |
|
struct kobject *speakup_kobj; |
|
|
|
int speakup_kobj_init(void) |
|
{ |
|
int retval; |
|
|
|
/* |
|
* Create a simple kobject with the name of "accessibility", |
|
* located under /sys/ |
|
* |
|
* As this is a simple directory, no uevent will be sent to |
|
* userspace. That is why this function should not be used for |
|
* any type of dynamic kobjects, where the name and number are |
|
* not known ahead of time. |
|
*/ |
|
accessibility_kobj = kobject_create_and_add("accessibility", NULL); |
|
if (!accessibility_kobj) { |
|
retval = -ENOMEM; |
|
goto out; |
|
} |
|
|
|
speakup_kobj = kobject_create_and_add("speakup", accessibility_kobj); |
|
if (!speakup_kobj) { |
|
retval = -ENOMEM; |
|
goto err_acc; |
|
} |
|
|
|
/* Create the files associated with this kobject */ |
|
retval = sysfs_create_group(speakup_kobj, &main_attr_group); |
|
if (retval) |
|
goto err_speakup; |
|
|
|
retval = sysfs_create_group(speakup_kobj, &i18n_attr_group); |
|
if (retval) |
|
goto err_group; |
|
|
|
goto out; |
|
|
|
err_group: |
|
sysfs_remove_group(speakup_kobj, &main_attr_group); |
|
err_speakup: |
|
kobject_put(speakup_kobj); |
|
err_acc: |
|
kobject_put(accessibility_kobj); |
|
out: |
|
return retval; |
|
} |
|
|
|
void speakup_kobj_exit(void) |
|
{ |
|
sysfs_remove_group(speakup_kobj, &i18n_attr_group); |
|
sysfs_remove_group(speakup_kobj, &main_attr_group); |
|
kobject_put(speakup_kobj); |
|
kobject_put(accessibility_kobj); |
|
}
|
|
|