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// device.c |
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// |
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/**************************************************************************** |
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liblscp - LinuxSampler Control Protocol API |
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Copyright (C) 2004, rncbc aka Rui Nuno Capela. All rights reserved. |
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|
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This library is free software; you can redistribute it and/or |
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modify it under the terms of the GNU Lesser General Public |
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License as published by the Free Software Foundation; either |
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version 2.1 of the License, or (at your option) any later version. |
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|
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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Lesser General Public License for more details. |
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|
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You should have received a copy of the GNU Lesser General Public |
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License along with this library; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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|
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*****************************************************************************/ |
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|
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#include "common.h" |
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|
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|
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// Local prototypes. |
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|
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static lscp_driver_info_t *_lscp_driver_info_query (lscp_client_t *pClient, lscp_driver_info_t *pDriverInfo, char *pszQuery); |
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static lscp_param_info_t *_lscp_param_info_query (lscp_client_t *pClient, lscp_param_info_t *pParamInfo, char *pszQuery, lscp_param_t *pDepList); |
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|
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|
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//------------------------------------------------------------------------- |
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// Local funtions. |
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|
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// Common driver type query command. |
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static lscp_driver_info_t *_lscp_driver_info_query ( lscp_client_t *pClient, lscp_driver_info_t *pDriverInfo, char *pszQuery ) |
| 37 |
{ |
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const char *pszResult; |
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const char *pszSeps = ":"; |
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const char *pszCrlf = "\r\n"; |
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char *pszToken; |
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char *pch; |
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|
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// Lock this section up. |
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lscp_mutex_lock(pClient->mutex); |
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|
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lscp_driver_info_reset(pDriverInfo); |
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if (lscp_client_call(pClient, pszQuery) == LSCP_OK) { |
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pszResult = lscp_client_get_result(pClient); |
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pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
| 51 |
while (pszToken) { |
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if (strcasecmp(pszToken, "DESCRIPTION") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pDriverInfo->description = lscp_unquote(&pszToken, 1); |
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} |
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else if (strcasecmp(pszToken, "VERSION") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pDriverInfo->version = lscp_unquote(&pszToken, 1); |
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} |
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else if (strcasecmp(pszToken, "PARAMETERS") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pDriverInfo->parameters = lscp_szsplit_create(pszToken, ","); |
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} |
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pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
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} |
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} |
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|
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// Unlock this section down. |
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lscp_mutex_unlock(pClient->mutex); |
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|
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return pDriverInfo; |
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} |
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|
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|
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// Common parameter info query command. |
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static lscp_param_info_t *_lscp_param_info_query ( lscp_client_t *pClient, lscp_param_info_t *pParamInfo, char *pszQuery, lscp_param_t *pDepList ) |
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{ |
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const char *pszResult; |
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const char *pszSeps = ":"; |
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const char *pszCrlf = "\r\n"; |
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char *pszToken; |
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char *pch; |
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|
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// Lock this section up. |
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lscp_mutex_lock(pClient->mutex); |
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|
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lscp_param_info_reset(pParamInfo); |
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lscp_param_concat(pszQuery, LSCP_BUFSIZ, pDepList); |
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if (lscp_client_call(pClient, pszQuery) == LSCP_OK) { |
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pszResult = lscp_client_get_result(pClient); |
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pszToken = lscp_strtok((char *) pszResult, pszSeps, &(pch)); |
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while (pszToken) { |
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if (strcasecmp(pszToken, "TYPE") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) { |
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pszToken = lscp_unquote(&pszToken, 0); |
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if (strcasecmp(pszToken, "BOOL") == 0) |
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pParamInfo->type = LSCP_TYPE_BOOL; |
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else if (strcasecmp(pszToken, "INT") == 0) |
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pParamInfo->type = LSCP_TYPE_INT; |
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else if (strcasecmp(pszToken, "FLOAT") == 0) |
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pParamInfo->type = LSCP_TYPE_FLOAT; |
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else if (strcasecmp(pszToken, "STRING") == 0) |
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pParamInfo->type = LSCP_TYPE_STRING; |
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} |
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} |
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else if (strcasecmp(pszToken, "DESCRIPTION") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pParamInfo->description = lscp_unquote(&pszToken, 1); |
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} |
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else if (strcasecmp(pszToken, "MANDATORY") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pParamInfo->mandatory = (strcasecmp(lscp_unquote(&pszToken, 0), "TRUE") == 0); |
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} |
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else if (strcasecmp(pszToken, "FIX") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pParamInfo->fix = (strcasecmp(lscp_unquote(&pszToken, 0), "TRUE") == 0); |
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} |
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else if (strcasecmp(pszToken, "MULTIPLICITY") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pParamInfo->multiplicity = (strcasecmp(lscp_unquote(&pszToken, 0), "TRUE") == 0); |
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} |
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else if (strcasecmp(pszToken, "DEPENDS") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pParamInfo->depends = lscp_szsplit_create(pszToken, ","); |
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} |
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else if (strcasecmp(pszToken, "DEFAULT") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pParamInfo->defaultv = lscp_unquote(&pszToken, 1); |
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} |
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else if (strcasecmp(pszToken, "RANGE_MIN") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pParamInfo->range_min = lscp_unquote(&pszToken, 1); |
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} |
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else if (strcasecmp(pszToken, "RANGE_MAX") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pParamInfo->range_max = lscp_unquote(&pszToken, 1); |
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} |
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else if (strcasecmp(pszToken, "POSSIBILITIES") == 0) { |
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pszToken = lscp_strtok(NULL, pszCrlf, &(pch)); |
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if (pszToken) |
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pParamInfo->possibilities = lscp_szsplit_create(pszToken, ","); |
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} |
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pszToken = lscp_strtok(NULL, pszSeps, &(pch)); |
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} |
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} |
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|
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// Unlock this section down. |
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lscp_mutex_unlock(pClient->mutex); |
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|
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return pParamInfo; |
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} |
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|
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|
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//------------------------------------------------------------------------- |
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// Audio driver control functions. |
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|
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/** |
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* Getting all available audio output drivers. |
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* GET AVAILABLE_AUDIO_OUTPUT_DRIVERS |
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* |
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* @param pClient Pointer to client instance structure. |
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* |
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* @returns A NULL terminated array of audio output driver type |
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* name strings, or NULL in case of failure. |
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*/ |
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const char ** lscp_get_available_audio_drivers ( lscp_client_t *pClient ) |
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{ |
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const char *pszSeps = ","; |
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|
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// Lock this section up. |
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lscp_mutex_lock(pClient->mutex); |
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|
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if (pClient->audio_drivers) { |
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lscp_szsplit_destroy(pClient->audio_drivers); |
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pClient->audio_drivers = NULL; |
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} |
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|
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if (lscp_client_call(pClient, "GET AVAILABLE_AUDIO_OUTPUT_DRIVERS\r\n") == LSCP_OK) |
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pClient->audio_drivers = lscp_szsplit_create(lscp_client_get_result(pClient), pszSeps); |
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|
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// Unlock this section down. |
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lscp_mutex_unlock(pClient->mutex); |
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|
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return (const char **) pClient->audio_drivers; |
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} |
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|
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|
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/** |
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* Getting informations about a specific audio output driver. |
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* GET AUDIO_OUTPUT_DRIVER INFO <audio-output-type> |
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* |
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* @param pClient Pointer to client instance structure. |
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* @param pszAudioDriver Audio driver type string (e.g. "ALSA"). |
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* |
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* @returns A pointer to a @ref lscp_driver_info_t structure, with |
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* the given audio driver information, or NULL in case of failure. |
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*/ |
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lscp_driver_info_t* lscp_get_audio_driver_info ( lscp_client_t *pClient, const char *pszAudioDriver ) |
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{ |
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char szQuery[LSCP_BUFSIZ]; |
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|
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if (pszAudioDriver == NULL) |
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return NULL; |
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|
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sprintf(szQuery, "GET AUDIO_OUTPUT_DRIVER INFO %s\r\n", pszAudioDriver); |
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return _lscp_driver_info_query(pClient, &(pClient->audio_info), szQuery); |
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} |
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|
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|
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/** |
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* Getting informations about specific audio output driver parameter. |
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* GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO <audio-output-driver> <param> [<dep-list>] |
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* |
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* @param pClient Pointer to client instance structure. |
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* @param pszAudioDriver Audio driver type string (e.g. "ALSA"). |
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* @param pszParam Audio driver parameter name. |
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* @param pDepList Pointer to specific dependencies parameter list. |
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* |
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* @returns A pointer to a @ref lscp_param_info_t structure, with |
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* the given audio driver parameter information, or NULL in case of failure. |
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*/ |
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lscp_param_info_t *lscp_get_audio_driver_param_info ( lscp_client_t *pClient, const char *pszAudioDriver, const char *pszParam, lscp_param_t *pDepList ) |
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{ |
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char szQuery[LSCP_BUFSIZ]; |
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|
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if (pClient == NULL) |
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return NULL; |
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if (pszAudioDriver == NULL) |
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return NULL; |
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if (pszParam == NULL) |
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return NULL; |
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|
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sprintf(szQuery, "GET AUDIO_OUTPUT_DRIVER_PARAMETER INFO %s %s\r\n", pszAudioDriver, pszParam); |
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return _lscp_param_info_query(pClient, &(pClient->audio_param_info), szQuery, pDepList); |
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} |
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|
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|
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//------------------------------------------------------------------------- |
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// Audio device control functions. |
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|
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/** |
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* Creating an audio output device. |
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* CREATE AUDIO_OUTPUT_DEVICE <audio-output-driver> [<params>] |
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* |
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* @param pClient Pointer to client instance structure. |
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* @param pszAudioDriver Audio driver type string (e.g. "ALSA"). |
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* @param pParams Pointer to specific parameter list. |
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* |
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* @returns The new audio device number identifier on success, |
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* or -1 in case of failure. |
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*/ |
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int lscp_create_audio_device ( lscp_client_t *pClient, const char *pszAudioDriver, lscp_param_t *pParams ) |
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{ |
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int iAudioDevice = -1; |
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|
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if (pClient == NULL) |
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return -1; |
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if (pszAudioDriver == NULL) |
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return -1; |
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if (pParams == NULL) |
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return -1; |
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|
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return iAudioDevice; |
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} |
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|
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|
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/** |
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* Destroying an audio output device. |
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* DESTROY AUDIO_OUTPUT_DEVICE <audio-device-id> |
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* |
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* @param pClient Pointer to client instance structure. |
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* @param iAudioDevice Audio device number identifier. |
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* |
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* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
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*/ |
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lscp_status_t lscp_destroy_audio_device ( lscp_client_t *pClient, int iAudioDevice ) |
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{ |
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lscp_status_t ret = LSCP_FAILED; |
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|
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if (pClient == NULL) |
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return ret; |
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if (iAudioDevice < 0) |
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return ret; |
| 296 |
|
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return ret; |
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} |
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|
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|
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/** |
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* Getting all created audio output device count. |
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* GET AUDIO_OUTPUT_DEVICES |
| 304 |
* |
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* @param pClient Pointer to client instance structure. |
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* |
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* @returns The current total number of audio devices on success, |
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* -1 otherwise. |
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*/ |
| 310 |
int lscp_get_audio_devices ( lscp_client_t *pClient ) |
| 311 |
{ |
| 312 |
int iAudioDevices = -1; |
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|
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// Lock this section up. |
| 315 |
lscp_mutex_lock(pClient->mutex); |
| 316 |
|
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if (lscp_client_call(pClient, "GET AUDIO_OUTPUT_DEVICES\r\n") == LSCP_OK) |
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iAudioDevices = atoi(lscp_client_get_result(pClient)); |
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|
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// Unlock this section down. |
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lscp_mutex_unlock(pClient->mutex); |
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|
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return iAudioDevices; |
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} |
| 325 |
|
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|
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/** |
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* Getting all created audio output device list. |
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* LIST AUDIO_OUTPUT_DEVICES |
| 330 |
* |
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* @param pClient Pointer to client instance structure. |
| 332 |
* |
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* @returns An array of audio device number identifiers, |
| 334 |
* terminated with -1 on success, or NULL in case of failure. |
| 335 |
*/ |
| 336 |
int *lscp_list_audio_devices ( lscp_client_t *pClient ) |
| 337 |
{ |
| 338 |
const char *pszSeps = ","; |
| 339 |
|
| 340 |
if (pClient == NULL) |
| 341 |
return NULL; |
| 342 |
|
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// Lock this section up. |
| 344 |
lscp_mutex_lock(pClient->mutex); |
| 345 |
|
| 346 |
if (pClient->audio_devices) { |
| 347 |
lscp_isplit_destroy(pClient->audio_devices); |
| 348 |
pClient->audio_devices = NULL; |
| 349 |
} |
| 350 |
|
| 351 |
if (lscp_client_call(pClient, "LIST AUDIO_OUTPUT_DEVICES\r\n") == LSCP_OK) |
| 352 |
pClient->audio_devices = lscp_isplit_create(lscp_client_get_result(pClient), pszSeps); |
| 353 |
|
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// Unlock this section down. |
| 355 |
lscp_mutex_unlock(pClient->mutex); |
| 356 |
|
| 357 |
return pClient->audio_devices; |
| 358 |
} |
| 359 |
|
| 360 |
|
| 361 |
/** |
| 362 |
* Getting current settings of an audio output device. |
| 363 |
* GET AUDIO_OUTPUT_DEVICE INFO <audio-device-id> |
| 364 |
* |
| 365 |
* @param pClient Pointer to client instance structure. |
| 366 |
* @param iAudioDevice Audio device number identifier. |
| 367 |
* |
| 368 |
* @returns A pointer to a @ref lscp_device_info_t structure, with |
| 369 |
* the given audio device information, or NULL in case of failure. |
| 370 |
*/ |
| 371 |
lscp_device_info_t *lscp_get_audio_device_info ( lscp_client_t *pClient, int iAudioDevice ) |
| 372 |
{ |
| 373 |
lscp_device_info_t *pDeviceInfo = NULL; |
| 374 |
|
| 375 |
if (pClient == NULL) |
| 376 |
return NULL; |
| 377 |
if (iAudioDevice < 0) |
| 378 |
return NULL; |
| 379 |
|
| 380 |
return pDeviceInfo; |
| 381 |
} |
| 382 |
|
| 383 |
|
| 384 |
/** |
| 385 |
* Changing settings of audio output devices. |
| 386 |
* SET AUDIO_OUTPUT_DEVICE_PARAMETER <audio-device-id> <param> <value> |
| 387 |
* |
| 388 |
* @param pClient Pointer to client instance structure. |
| 389 |
* @param iAudioDevice Audio device number identifier. |
| 390 |
* @param pParam Pointer to a key-valued audio device parameter. |
| 391 |
* |
| 392 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
| 393 |
*/ |
| 394 |
lscp_status_t lscp_set_audio_device_param ( lscp_client_t *pClient, int iAudioDevice, lscp_param_t *pParam ) |
| 395 |
{ |
| 396 |
lscp_status_t ret = LSCP_FAILED; |
| 397 |
|
| 398 |
if (pClient == NULL) |
| 399 |
return ret; |
| 400 |
if (iAudioDevice < 0) |
| 401 |
return ret; |
| 402 |
if (pParam == NULL) |
| 403 |
return ret; |
| 404 |
|
| 405 |
return ret; |
| 406 |
} |
| 407 |
|
| 408 |
|
| 409 |
/** |
| 410 |
* Getting informations about an audio channel. |
| 411 |
* GET AUDIO_OUTPUT_CHANNEL INFO <audio-device-id> <audio-channel> |
| 412 |
* |
| 413 |
* @param pClient Pointer to client instance structure. |
| 414 |
* @param iAudioDevice Audio device number identifier. |
| 415 |
* @param iAudioChannel Audio channel number. |
| 416 |
* |
| 417 |
* @returns A pointer to a @ref lscp_device_channel_info_t structure, |
| 418 |
* with the given audio channel information, or NULL in case of failure. |
| 419 |
*/ |
| 420 |
lscp_device_channel_info_t* lscp_get_audio_channel_info ( lscp_client_t *pClient, int iAudioDevice, int iAudioChannel ) |
| 421 |
{ |
| 422 |
lscp_device_channel_info_t *pDevChannelInfo = NULL; |
| 423 |
|
| 424 |
if (pClient == NULL) |
| 425 |
return NULL; |
| 426 |
if (iAudioDevice < 0) |
| 427 |
return NULL; |
| 428 |
if (iAudioChannel < 0) |
| 429 |
return NULL; |
| 430 |
|
| 431 |
return pDevChannelInfo; |
| 432 |
} |
| 433 |
|
| 434 |
|
| 435 |
/** |
| 436 |
* Getting informations about specific audio channel parameter. |
| 437 |
* GET AUDIO_OUTPUT_CHANNEL_PARAMETER INFO <audio-device-id> <audio-channel> <param> |
| 438 |
* |
| 439 |
* @param pClient Pointer to client instance structure. |
| 440 |
* @param iAudioDevice Audio device number identifier. |
| 441 |
* @param iAudioChannel Audio channel number. |
| 442 |
* @param pszParam Audio channel parameter name. |
| 443 |
* |
| 444 |
* @returns A pointer to a @ref lscp_param_info_t structure, with |
| 445 |
* the given audio channel parameter information, or NULL in case of failure. |
| 446 |
*/ |
| 447 |
lscp_param_info_t* lscp_get_audio_channel_param_info ( lscp_client_t *pClient, int iAudioDevice, int iAudioChannel, const char *pszParam ) |
| 448 |
{ |
| 449 |
lscp_param_info_t *pParamInfo = NULL; |
| 450 |
|
| 451 |
if (pClient == NULL) |
| 452 |
return NULL; |
| 453 |
if (iAudioDevice < 0) |
| 454 |
return NULL; |
| 455 |
if (iAudioChannel < 0) |
| 456 |
return NULL; |
| 457 |
if (pszParam == NULL) |
| 458 |
return NULL; |
| 459 |
|
| 460 |
return pParamInfo; |
| 461 |
} |
| 462 |
|
| 463 |
|
| 464 |
/** |
| 465 |
* Changing settings of audio output channels. |
| 466 |
* SET AUDIO_OUTPUT_CHANNEL_PARAMETER <audio-device-id> <audio-channel> <param> <value> |
| 467 |
* |
| 468 |
* @param pClient Pointer to client instance structure. |
| 469 |
* @param iAudioDevice Audio device number identifier. |
| 470 |
* @param iAudioChannel Audio channel number. |
| 471 |
* @param pParam Pointer to a key-valued audio channel parameter. |
| 472 |
* |
| 473 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
| 474 |
*/ |
| 475 |
lscp_status_t lscp_set_audio_channel_param ( lscp_client_t *pClient, int iAudioDevice, int iAudioChannel, lscp_param_t *pParam ) |
| 476 |
{ |
| 477 |
lscp_status_t ret = LSCP_FAILED; |
| 478 |
|
| 479 |
if (pClient == NULL) |
| 480 |
return ret; |
| 481 |
if (iAudioDevice < 0) |
| 482 |
return ret; |
| 483 |
if (iAudioChannel < 0) |
| 484 |
return ret; |
| 485 |
if (pParam == NULL) |
| 486 |
return ret; |
| 487 |
|
| 488 |
return ret; |
| 489 |
} |
| 490 |
|
| 491 |
|
| 492 |
//------------------------------------------------------------------------- |
| 493 |
// MIDI driver control functions. |
| 494 |
|
| 495 |
/** |
| 496 |
* Getting all available MIDI input drivers. |
| 497 |
* GET AVAILABLE_MIDI_INPUT_DRIVERS |
| 498 |
* |
| 499 |
* @param pClient Pointer to client instance structure. |
| 500 |
* |
| 501 |
* @returns A NULL terminated array of MIDI input driver type |
| 502 |
* name strings, or NULL in case of failure. |
| 503 |
*/ |
| 504 |
const char** lscp_get_available_midi_drivers ( lscp_client_t *pClient ) |
| 505 |
{ |
| 506 |
const char *pszSeps = ","; |
| 507 |
|
| 508 |
// Lock this section up. |
| 509 |
lscp_mutex_lock(pClient->mutex); |
| 510 |
|
| 511 |
if (pClient->midi_drivers) { |
| 512 |
lscp_szsplit_destroy(pClient->midi_drivers); |
| 513 |
pClient->midi_drivers = NULL; |
| 514 |
} |
| 515 |
|
| 516 |
if (lscp_client_call(pClient, "GET AVAILABLE_MIDI_INPUT_DRIVERS\r\n") == LSCP_OK) |
| 517 |
pClient->midi_drivers = lscp_szsplit_create(lscp_client_get_result(pClient), pszSeps); |
| 518 |
|
| 519 |
// Unlock this section up. |
| 520 |
lscp_mutex_unlock(pClient->mutex); |
| 521 |
|
| 522 |
return (const char **) pClient->midi_drivers; |
| 523 |
} |
| 524 |
|
| 525 |
|
| 526 |
/** |
| 527 |
* Getting informations about a specific MIDI input driver. |
| 528 |
* GET MIDI_INPUT_DRIVER INFO <midi-input-type> |
| 529 |
* |
| 530 |
* @param pClient Pointer to client instance structure. |
| 531 |
* @param pszMidiDriver MIDI driver type string (e.g. "ALSA"). |
| 532 |
* |
| 533 |
* @returns A pointer to a @ref lscp_driver_info_t structure, with |
| 534 |
* the given MIDI driver information, or NULL in case of failure. |
| 535 |
*/ |
| 536 |
lscp_driver_info_t* lscp_get_midi_driver_info ( lscp_client_t *pClient, const char *pszMidiDriver ) |
| 537 |
{ |
| 538 |
char szQuery[LSCP_BUFSIZ]; |
| 539 |
|
| 540 |
if (pszMidiDriver == NULL) |
| 541 |
return NULL; |
| 542 |
|
| 543 |
sprintf(szQuery, "GET MIDI_INPUT_DRIVER INFO %s\r\n", pszMidiDriver); |
| 544 |
return _lscp_driver_info_query(pClient, &(pClient->midi_info), szQuery); |
| 545 |
} |
| 546 |
|
| 547 |
|
| 548 |
/** |
| 549 |
* Getting informations about specific MIDI input driver parameter. |
| 550 |
* GET MIDI_INPUT_DRIVER_PARAMETER INFO <midi-input-driver> <param> [<dep-list>] |
| 551 |
* |
| 552 |
* @param pClient Pointer to client instance structure. |
| 553 |
* @param pszMidiDriver MIDI driver type string (e.g. "ALSA"). |
| 554 |
* @param pszParam MIDI driver parameter name. |
| 555 |
* @param pDepList Pointer to specific dependencies parameter list. |
| 556 |
* |
| 557 |
* @returns A pointer to a @ref lscp_param_info_t structure, with |
| 558 |
* the given MIDI driver parameter information, or NULL in case of failure. |
| 559 |
* |
| 560 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
| 561 |
*/ |
| 562 |
lscp_param_info_t *lscp_get_midi_driver_param_info ( lscp_client_t *pClient, const char *pszMidiDriver, const char *pszParam, lscp_param_t *pDepList ) |
| 563 |
{ |
| 564 |
char szQuery[LSCP_BUFSIZ]; |
| 565 |
|
| 566 |
if (pClient == NULL) |
| 567 |
return NULL; |
| 568 |
if (pszMidiDriver == NULL) |
| 569 |
return NULL; |
| 570 |
if (pszParam == NULL) |
| 571 |
return NULL; |
| 572 |
|
| 573 |
sprintf(szQuery, "GET MIDI_INPUT_DRIVER_PARAMETER INFO %s %s\r\n", pszMidiDriver, pszParam); |
| 574 |
return _lscp_param_info_query(pClient, &(pClient->midi_param_info), szQuery, pDepList); |
| 575 |
} |
| 576 |
|
| 577 |
|
| 578 |
//------------------------------------------------------------------------- |
| 579 |
// MIDI device control functions. |
| 580 |
|
| 581 |
/** |
| 582 |
* Creating a MIDI input device. |
| 583 |
* CREATE MIDI_INPUT_DEVICE <midi-input-driver> [<params>] |
| 584 |
* |
| 585 |
* @param pClient Pointer to client instance structure. |
| 586 |
* @param pszMidiDriver MIDI driver type string (e.g. "ALSA"). |
| 587 |
* @param pParams Pointer to specific parameter list. |
| 588 |
* |
| 589 |
* @returns The new audio device number identifier on success, |
| 590 |
* or -1 in case of failure. |
| 591 |
*/ |
| 592 |
int lscp_create_midi_device ( lscp_client_t *pClient, const char *pszMidiDriver, lscp_param_t *pParams ) |
| 593 |
{ |
| 594 |
int iMidiDevice = -1; |
| 595 |
|
| 596 |
if (pClient == NULL) |
| 597 |
return -1; |
| 598 |
if (pszMidiDriver == NULL) |
| 599 |
return -1; |
| 600 |
if (pParams == NULL) |
| 601 |
return -1; |
| 602 |
|
| 603 |
return iMidiDevice; |
| 604 |
} |
| 605 |
|
| 606 |
|
| 607 |
/** |
| 608 |
* Destroying a MIDI input device. |
| 609 |
* DESTROY MIDI_INPUT_DEVICE <midi-device-id> |
| 610 |
* |
| 611 |
* @param pClient Pointer to client instance structure. |
| 612 |
* @param iMidiDevice MIDI device number identifier. |
| 613 |
* |
| 614 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
| 615 |
*/ |
| 616 |
lscp_status_t lscp_destroy_midi_device ( lscp_client_t *pClient, int iMidiDevice ) |
| 617 |
{ |
| 618 |
lscp_status_t ret = LSCP_FAILED; |
| 619 |
|
| 620 |
if (pClient == NULL) |
| 621 |
return ret; |
| 622 |
if (iMidiDevice < 0) |
| 623 |
return ret; |
| 624 |
|
| 625 |
return ret; |
| 626 |
} |
| 627 |
|
| 628 |
|
| 629 |
/** |
| 630 |
* Getting all created MIDI intput device count. |
| 631 |
* GET MIDI_INPUT_DEVICES |
| 632 |
* |
| 633 |
* @param pClient Pointer to client instance structure. |
| 634 |
* |
| 635 |
* @returns The current total number of MIDI devices on success, |
| 636 |
* -1 otherwise. |
| 637 |
*/ |
| 638 |
int lscp_get_midi_devices ( lscp_client_t *pClient ) |
| 639 |
{ |
| 640 |
int iMidiDevices = -1; |
| 641 |
|
| 642 |
// Lock this section up. |
| 643 |
lscp_mutex_lock(pClient->mutex); |
| 644 |
|
| 645 |
if (lscp_client_call(pClient, "GET MIDI_INPUT_DEVICES\r\n") == LSCP_OK) |
| 646 |
iMidiDevices = atoi(lscp_client_get_result(pClient)); |
| 647 |
|
| 648 |
// Unlock this section down. |
| 649 |
lscp_mutex_unlock(pClient->mutex); |
| 650 |
|
| 651 |
return iMidiDevices; |
| 652 |
} |
| 653 |
|
| 654 |
|
| 655 |
/** |
| 656 |
* Getting all created MIDI intput device list. |
| 657 |
* LIST MIDI_INPUT_DEVICES |
| 658 |
* |
| 659 |
* @param pClient Pointer to client instance structure. |
| 660 |
* |
| 661 |
* @returns An array of MIDI device number identifiers, |
| 662 |
* terminated with -1 on success, or NULL in case of failure. |
| 663 |
*/ |
| 664 |
int *lscp_list_midi_devices ( lscp_client_t *pClient ) |
| 665 |
{ |
| 666 |
const char *pszSeps = ","; |
| 667 |
|
| 668 |
if (pClient == NULL) |
| 669 |
return NULL; |
| 670 |
|
| 671 |
// Lock this section up. |
| 672 |
lscp_mutex_lock(pClient->mutex); |
| 673 |
|
| 674 |
if (pClient->midi_devices) { |
| 675 |
lscp_isplit_destroy(pClient->midi_devices); |
| 676 |
pClient->midi_devices = NULL; |
| 677 |
} |
| 678 |
|
| 679 |
if (lscp_client_call(pClient, "LIST MIDI_INPUT_DEVICES\r\n") == LSCP_OK) |
| 680 |
pClient->midi_devices = lscp_isplit_create(lscp_client_get_result(pClient), pszSeps); |
| 681 |
|
| 682 |
// Unlock this section down. |
| 683 |
lscp_mutex_unlock(pClient->mutex); |
| 684 |
|
| 685 |
return pClient->midi_devices; |
| 686 |
} |
| 687 |
|
| 688 |
|
| 689 |
/** |
| 690 |
* Getting current settings of a MIDI input device. |
| 691 |
* GET MIDI_INPUT_DEVICE INFO <midi-device-id> |
| 692 |
* |
| 693 |
* @param pClient Pointer to client instance structure. |
| 694 |
* @param iMidiDevice MIDI device number identifier. |
| 695 |
* |
| 696 |
* @returns A pointer to a @ref lscp_device_info_t structure, with |
| 697 |
* the given MIDI device information, or NULL in case of failure. |
| 698 |
*/ |
| 699 |
lscp_device_info_t* lscp_get_midi_device_info ( lscp_client_t *pClient, int iMidiDevice ) |
| 700 |
{ |
| 701 |
lscp_device_info_t *pDeviceInfo = NULL; |
| 702 |
|
| 703 |
if (pClient == NULL) |
| 704 |
return NULL; |
| 705 |
if (iMidiDevice < 0) |
| 706 |
return NULL; |
| 707 |
|
| 708 |
return pDeviceInfo; |
| 709 |
} |
| 710 |
|
| 711 |
|
| 712 |
/** |
| 713 |
* Changing settings of MIDI input devices. |
| 714 |
* SET MIDI_INPUT_DEVICE_PARAMETER <midi-device-id> <param> <value> |
| 715 |
* |
| 716 |
* @param pClient Pointer to client instance structure. |
| 717 |
* @param iMidiDevice MIDI device number identifier. |
| 718 |
* @param pParam Pointer to a key-valued MIDI device parameter. |
| 719 |
* |
| 720 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
| 721 |
*/ |
| 722 |
lscp_status_t lscp_set_midi_device_param ( lscp_client_t *pClient, int iMidiDevice, lscp_param_t *pParam ) |
| 723 |
{ |
| 724 |
lscp_status_t ret = LSCP_FAILED; |
| 725 |
|
| 726 |
if (pClient == NULL) |
| 727 |
return ret; |
| 728 |
if (iMidiDevice < 0) |
| 729 |
return ret; |
| 730 |
if (pParam == NULL) |
| 731 |
return ret; |
| 732 |
|
| 733 |
return ret; |
| 734 |
} |
| 735 |
|
| 736 |
|
| 737 |
/** |
| 738 |
* Getting informations about a MIDI port. |
| 739 |
* GET MIDI_INPUT_PORT INFO <midi-device-id> <midi-port> |
| 740 |
* |
| 741 |
* @param pClient Pointer to client instance structure. |
| 742 |
* @param iMidiDevice MIDI device number identifier. |
| 743 |
* @param iMidiPort MIDI port number. |
| 744 |
* |
| 745 |
* @returns A pointer to a @ref lscp_device_channel_info_t structure, |
| 746 |
* with the given MIDI port information, or NULL in case of failure. |
| 747 |
*/ |
| 748 |
lscp_device_channel_info_t* lscp_get_midi_port_info ( lscp_client_t *pClient, int iMidiDevice, int iMidiPort ) |
| 749 |
{ |
| 750 |
lscp_device_channel_info_t *pDevChannelInfo = NULL; |
| 751 |
|
| 752 |
if (pClient == NULL) |
| 753 |
return NULL; |
| 754 |
if (iMidiDevice < 0) |
| 755 |
return NULL; |
| 756 |
if (iMidiPort < 0) |
| 757 |
return NULL; |
| 758 |
|
| 759 |
return pDevChannelInfo; |
| 760 |
} |
| 761 |
|
| 762 |
|
| 763 |
/** |
| 764 |
* Getting informations about specific MIDI port parameter. |
| 765 |
* GET MIDI_INPUT_PORT_PARAMETER INFO <midi-device-id> <midi-port> <param> |
| 766 |
* |
| 767 |
* @param pClient Pointer to client instance structure. |
| 768 |
* @param iMidiDevice MIDI device number identifier. |
| 769 |
* @param iMidiPort MIDI port number. |
| 770 |
* @param pszParam MIDI port parameter name. |
| 771 |
* |
| 772 |
* @returns A pointer to a @ref lscp_param_info_t structure, with |
| 773 |
* the given MIDI port parameter information, or NULL in case of failure. |
| 774 |
*/ |
| 775 |
lscp_param_info_t* lscp_get_midi_port_param_info ( lscp_client_t *pClient, int iMidiDevice, int iMidiPort, const char *pszParam ) |
| 776 |
{ |
| 777 |
lscp_param_info_t *pParamInfo = NULL; |
| 778 |
|
| 779 |
if (pClient == NULL) |
| 780 |
return NULL; |
| 781 |
if (iMidiDevice < 0) |
| 782 |
return NULL; |
| 783 |
if (iMidiPort < 0) |
| 784 |
return NULL; |
| 785 |
if (pszParam == NULL) |
| 786 |
return NULL; |
| 787 |
|
| 788 |
return pParamInfo; |
| 789 |
} |
| 790 |
|
| 791 |
|
| 792 |
/** |
| 793 |
* Changing settings of MIDI input ports. |
| 794 |
* SET MIDI_INPUT_PORT_PARAMETER <midi-device-id> <midi-port> <param> <value> |
| 795 |
* |
| 796 |
* @param pClient Pointer to client instance structure. |
| 797 |
* @param iMidiDevice MIDI device number identifier. |
| 798 |
* @param iMidiPort MIDI port number. |
| 799 |
* @param pParam Pointer to a key-valued MIDI port parameter. |
| 800 |
* |
| 801 |
* @returns LSCP_OK on success, LSCP_FAILED otherwise. |
| 802 |
*/ |
| 803 |
lscp_status_t lscp_set_midi_port_param ( lscp_client_t *pClient, int iMidiDevice, int iMidiPort, lscp_param_t *pParam ) |
| 804 |
{ |
| 805 |
lscp_status_t ret = LSCP_FAILED; |
| 806 |
|
| 807 |
if (pClient == NULL) |
| 808 |
return ret; |
| 809 |
if (iMidiDevice < 0) |
| 810 |
return ret; |
| 811 |
if (iMidiPort < 0) |
| 812 |
return ret; |
| 813 |
if (pParam == NULL) |
| 814 |
return ret; |
| 815 |
|
| 816 |
return ret; |
| 817 |
} |
| 818 |
|
| 819 |
// end of device.c |
| 820 |
|
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