diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/app_usbd_string_desc.c')
-rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/app_usbd_string_desc.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/app_usbd_string_desc.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/app_usbd_string_desc.c new file mode 100644 index 0000000..0893b45 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/usbd/app_usbd_string_desc.c @@ -0,0 +1,188 @@ +/** + * Copyright (c) 2016 - 2018, Nordic Semiconductor ASA + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, + * are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form, except as embedded into a Nordic + * Semiconductor ASA integrated circuit in a product or a software update for + * such product, must reproduce the above copyright notice, this list of + * conditions and the following disclaimer in the documentation and/or other + * materials provided with the distribution. + * + * 3. Neither the name of Nordic Semiconductor ASA nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * 4. This software, with or without modification, must only be used with a + * Nordic Semiconductor ASA integrated circuit. + * + * 5. Any software provided in binary form under this license must not be reverse + * engineered, decompiled, modified and/or disassembled. + * + * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ +#include "sdk_config.h" +#if APP_USBD_ENABLED +#include "app_usbd_string_desc.h" +#include "app_usbd_langid.h" +#include "app_usbd_core.h" +#include "nordic_common.h" + +/** + * @defgroup app_usbd_string_desc + * @ingroup app_usbd + * + * USBD string descriptors management + * @{ + */ + +/** + * @brief Array with language identifiers + * + * This array would be used to search the proper string for selected language. + */ +static const uint16_t m_langids[] = { APP_USBD_STRINGS_LANGIDS }; + +/** + * @brief Language ID descriptor + * + * Language + */ + + +/** + * @brief Mnemonics for the string positions in the array + * + * The mnemonics for the indexes of the strings inside the string array. + */ +enum { + APP_USBD_STRING_ID_LANGIDS_ARRAY_POS = 0, /**< Supported language identifiers */ + APP_USBD_STRING_ID_MANUFACTURER_ARRAY_POS, /**< Manufacturer name */ + APP_USBD_STRING_ID_PRODUCT_ARRAY_POS, /**< Product name */ + APP_USBD_STRING_ID_SERIAL_ARRAY_POS, /**< Serial number */ +#define X(mnemonic, str_idx, ...) CONCAT_2(mnemonic, _ARRAY_POS), + APP_USBD_STRINGS_USER +#undef X +}; + +/** + * @brief String index into internal array index conversion table + * + * The array that transforms the USB string indexes into internal array position. + * @note Value 0 used to mark non-existing string. + */ +static const uint8_t m_string_translation[APP_USBD_STRING_ID_CNT] = +{ + [APP_USBD_STRING_ID_LANGIDS ] = APP_USBD_STRING_ID_LANGIDS_ARRAY_POS, + [APP_USBD_STRING_ID_MANUFACTURER] = APP_USBD_STRING_ID_MANUFACTURER_ARRAY_POS, + [APP_USBD_STRING_ID_PRODUCT ] = APP_USBD_STRING_ID_PRODUCT_ARRAY_POS, + [APP_USBD_STRING_ID_SERIAL ] = APP_USBD_STRING_ID_SERIAL_ARRAY_POS, +#define X(mnemonic, str_idx, ...) [mnemonic] = CONCAT_2(mnemonic, _ARRAY_POS), + APP_USBD_STRINGS_USER +#undef X +}; + +#ifndef APP_USBD_STRINGS_MANUFACTURER_EXTERN +#define APP_USBD_STRINGS_MANUFACTURER_EXTERN 0 +#endif + +#ifndef APP_USBD_STRINGS_PRODUCT_EXTERN +#define APP_USBD_STRINGS_PRODUCT_EXTERN 0 +#endif + +#ifndef APP_USBD_STRING_SERIAL_EXTERN +#define APP_USBD_STRING_SERIAL_EXTERN 0 +#endif + +#if APP_USBD_STRINGS_MANUFACTURER_EXTERN +extern uint16_t APP_USBD_STRINGS_MANUFACTURER[]; +#endif + +#if APP_USBD_STRINGS_PRODUCT_EXTERN +extern uint16_t APP_USBD_STRINGS_PRODUCT[]; +#endif + +#if APP_USBD_STRING_SERIAL_EXTERN +extern uint16_t APP_USBD_STRING_SERIAL[]; +#endif + + +/** + * @brief String descriptors table + * */ +static const uint16_t * m_string_dsc[APP_USBD_STRING_ID_CNT][ARRAY_SIZE(m_langids)] = +{ + [APP_USBD_STRING_ID_LANGIDS_ARRAY_POS] = { APP_USBD_STRING_DESC(APP_USBD_STRINGS_LANGIDS) }, + [APP_USBD_STRING_ID_MANUFACTURER_ARRAY_POS] = { APP_USBD_STRINGS_MANUFACTURER }, + [APP_USBD_STRING_ID_PRODUCT_ARRAY_POS] = { APP_USBD_STRINGS_PRODUCT }, + [APP_USBD_STRING_ID_SERIAL_ARRAY_POS] = { APP_USBD_STRING_SERIAL }, +#define X(mnemonic, str_idx, ...) [CONCAT_2(mnemonic, _ARRAY_POS)] = { __VA_ARGS__ }, + APP_USBD_STRINGS_USER +#undef X +}; + + + +uint16_t const * app_usbd_string_desc_get(app_usbd_string_desc_idx_t idx, uint16_t langid) +{ + /* LANGID string */ + if (APP_USBD_STRING_ID_LANGIDS == idx) + { + return m_string_dsc[APP_USBD_STRING_ID_LANGIDS_ARRAY_POS][0]; + } + + /* Searching for the language */ + uint8_t lang_idx = 0; + if (ARRAY_SIZE(m_langids) > 1) + { + while (m_langids[lang_idx] != langid) + { + if (++lang_idx >= ARRAY_SIZE(m_langids)) + { + return NULL; + } + } + } + + /* Get the string index in array */ + if (idx >= ARRAY_SIZE(m_string_translation)) + { + return NULL; + } + + uint8_t str_pos = m_string_translation[idx]; + if (str_pos == 0) + { + return NULL; + } + + uint16_t const * p_str = m_string_dsc[str_pos][lang_idx]; + if ((ARRAY_SIZE(m_langids) > 1) && (lang_idx != 0)) + { + if (p_str == NULL) + { + p_str = m_string_dsc[str_pos][0]; + } + } + + return p_str; +} + +/** @} */ +#endif // APP_USBD_ENABLED |