lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>

lib: charset: Fix and extend utf8_to_utf32_stream() documentation

Clarify usage of buffer argument.

Signed-off-by: Janne Grunau <j@jannau.net>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

doc: fix description of u16_strcasecmp()

Remove non-existent parameter 'n' from function description.

Fixes: 7a9b366cd9b7 ("lib: add function u16_strcasecmp()")
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: add function u16_strcasecmp()

Provide a function for comparing UTF-16 strings in a case insensitive
manner.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: fix compile warnings

This commit fixes the following compile warnings
for the documentation.

./include/charset.h:276: warning: Function parameter or member 'size' not described in 'u16_strlcat'
./include/charset.h:276: warning: Excess function parameter 'count' description in 'u16_strlcat'

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib/charset: add u16_strlcat() function

Provide u16 string version of strlcat().

Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

lib: convert u16_strlen() into a macro

The function u16_strlen() can be implemented as call to u16_strnlen().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

efi_loader: documentation codepage_437[]

Variables cannot be documented via kernel-doc. Avoid 'make htmldocs' build
warning

./include/charset.h:19: warning:
cannot understand function prototype: 'const u16 codepage_437[128]; '

Fixes: 70616a1ed8c7 ("efi_loader: move codepage 437 table")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib/charset: UTF-8 stream conversion

Provide functions to convert an UTF-8 stream to code page 437 or UTF-32.

Add unit tests.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: carve out utf_to_cp()

Carve out a function to translate a Unicode code point to an 8bit codepage.

Provide a unit test for the new function.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: move codepage 437 table

Move the Unicode to codepage 437 table to charset.c

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: typo in function description of u16_strnlen

%/u16_strlen/u16_strnlen()/

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct function descriptions

Change function descriptions to match kernel doc style.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

charset: Add support for calculating bytes occupied by a u16 string

The current code uses 'u16_strlen(x) + 1) * sizeof(u16)' in various
places to calculate the number of bytes occupied by a u16 string.
Let's introduce a wrapper around this. This wrapper is used on following
patches

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: add u16_str<n>cmp()

u16 version of strcmp(): u16_strncmp() works like u16_strcmp() but only
at most n characters (in u16) are compared.
This function will be used in my UEFI secure boot patch.

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

efi_loader: support unaligned u16 strings

Allow unaligned u16 strings as arguments to u16_strdup() and u16_strlen().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: charset: correct utf8_utf16_strnlen() description

Correct the description of utf8_utf16_strnlen() and utf8_utf16_strlen() to
reflect that they return u16 count and not byte count.

For these functions and utf16_utf8_strnlen() describe the handling of
invalid code sequences.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

lib: add u16_strcpy/strdup functions

Add u16_strcpy() and u16_strdup(). The latter function will be
used later in implementing efi HII database protocol.

Signed-off-by: Akashi Takahiro <takahiro.akashi@linaro.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

lib/charset: Map Unicode code points to CP437 code points 1-31

Code page 437 uses code points 1-31 for glyphs instead of control
characters. Map the appropriate Unicode code points to this code points.
Fixes rendering of grub2's menu as EFI application using the
EFI_SIMPLE_TEXT_OUTPUT_PROTOCOL on a console with bitmap fonts.

Signed-off-by: Janne Grunau <j@jannau.net>