From 4223478a363dc5c996b136f61193f0772c03ebcc Mon Sep 17 00:00:00 2001 From: "Zhang,Vivian" Date: Thu, 21 Mar 2013 09:52:48 +0800 Subject: [PATCH] Initial import for sound hal plugin which handles audio routing on MFLD platform Change-Id: I259f58c890b145b32ac9b5571484ac2a5dec8c23 --- LICENSE | 204 +++++++++++++++++++++ Makefile.am | 21 +++ autogen.sh | 5 + configure.ac | 70 +++++++ include/call_audio_mfld.h | 25 +++ include/sound_card_control_mfld.h | 20 ++ packaging/sound-plugin-hal-mfld-blackbay.spec | 41 +++++ src/audio_hal_plugin_mfld.c | 176 ++++++++++++++++++ src/sound_card_control_mfld.c | 254 ++++++++++++++++++++++++++ 9 files changed, 816 insertions(+) create mode 100644 LICENSE create mode 100644 Makefile.am create mode 100755 autogen.sh create mode 100644 configure.ac create mode 100644 include/call_audio_mfld.h create mode 100644 include/sound_card_control_mfld.h create mode 100644 packaging/sound-plugin-hal-mfld-blackbay.spec create mode 100644 src/audio_hal_plugin_mfld.c create mode 100644 src/sound_card_control_mfld.c diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..a8b63c5 --- /dev/null +++ b/LICENSE @@ -0,0 +1,204 @@ +Copyright (C) 2013 Intel Corporation. All rights reserved. + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. Definitions. + + "License" shall mean the terms and conditions for use, reproduction, + and distribution as defined by Sections 1 through 9 of this document. + + "Licensor" shall mean the copyright owner or entity authorized by + the copyright owner that is granting the License. + + "Legal Entity" shall mean the union of the acting entity and all + other entities that control, are controlled by, or are under common + control with that entity. For the purposes of this definition, + "control" means (i) the power, direct or indirect, to cause the + direction or management of such entity, whether by contract or + otherwise, or (ii) ownership of fifty percent (50%) or more of the + outstanding shares, or (iii) beneficial ownership of such entity. + + "You" (or "Your") shall mean an individual or Legal Entity + exercising permissions granted by this License. + + "Source" form shall mean the preferred form for making modifications, + including but not limited to software source code, documentation + source, and configuration files. + + "Object" form shall mean any form resulting from mechanical + transformation or translation of a Source form, including but + not limited to compiled object code, generated documentation, + and conversions to other media types. + + "Work" shall mean the work of authorship, whether in Source or + Object form, made available under the License, as indicated by a + copyright notice that is included in or attached to the work + (an example is provided in the Appendix below). + + "Derivative Works" shall mean any work, whether in Source or Object + form, that is based on (or derived from) the Work and for which the + editorial revisions, annotations, elaborations, or other modifications + represent, as a whole, an original work of authorship. For the purposes + of this License, Derivative Works shall not include works that remain + separable from, or merely link (or bind by name) to the interfaces of, + the Work and Derivative Works thereof. + + "Contribution" shall mean any work of authorship, including + the original version of the Work and any modifications or additions + to that Work or Derivative Works thereof, that is intentionally + submitted to Licensor for inclusion in the Work by the copyright owner + or by an individual or Legal Entity authorized to submit on behalf of + the copyright owner. For the purposes of this definition, "submitted" + means any form of electronic, verbal, or written communication sent + to the Licensor or its representatives, including but not limited to + communication on electronic mailing lists, source code control systems, + and issue tracking systems that are managed by, or on behalf of, the + Licensor for the purpose of discussing and improving the Work, but + excluding communication that is conspicuously marked or otherwise + designated in writing by the copyright owner as "Not a Contribution." + + "Contributor" shall mean Licensor and any individual or Legal Entity + on behalf of whom a Contribution has been received by Licensor and + subsequently incorporated within the Work. + + 2. Grant of Copyright License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + copyright license to reproduce, prepare Derivative Works of, + publicly display, publicly perform, sublicense, and distribute the + Work and such Derivative Works in Source or Object form. + + 3. Grant of Patent License. Subject to the terms and conditions of + this License, each Contributor hereby grants to You a perpetual, + worldwide, non-exclusive, no-charge, royalty-free, irrevocable + (except as stated in this section) patent license to make, have made, + use, offer to sell, sell, import, and otherwise transfer the Work, + where such license applies only to those patent claims licensable + by such Contributor that are necessarily infringed by their + Contribution(s) alone or by combination of their Contribution(s) + with the Work to which such Contribution(s) was submitted. If You + institute patent litigation against any entity (including a + cross-claim or counterclaim in a lawsuit) alleging that the Work + or a Contribution incorporated within the Work constitutes direct + or contributory patent infringement, then any patent licenses + granted to You under this License for that Work shall terminate + as of the date such litigation is filed. + + 4. Redistribution. You may reproduce and distribute copies of the + Work or Derivative Works thereof in any medium, with or without + modifications, and in Source or Object form, provided that You + meet the following conditions: + + (a) You must give any other recipients of the Work or + Derivative Works a copy of this License; and + + (b) You must cause any modified files to carry prominent notices + stating that You changed the files; and + + (c) You must retain, in the Source form of any Derivative Works + that You distribute, all copyright, patent, trademark, and + attribution notices from the Source form of the Work, + excluding those notices that do not pertain to any part of + the Derivative Works; and + + (d) If the Work includes a "NOTICE" text file as part of its + distribution, then any Derivative Works that You distribute must + include a readable copy of the attribution notices contained + within such NOTICE file, excluding those notices that do not + pertain to any part of the Derivative Works, in at least one + of the following places: within a NOTICE text file distributed + as part of the Derivative Works; within the Source form or + documentation, if provided along with the Derivative Works; or, + within a display generated by the Derivative Works, if and + wherever such third-party notices normally appear. The contents + of the NOTICE file are for informational purposes only and + do not modify the License. You may add Your own attribution + notices within Derivative Works that You distribute, alongside + or as an addendum to the NOTICE text from the Work, provided + that such additional attribution notices cannot be construed + as modifying the License. + + You may add Your own copyright statement to Your modifications and + may provide additional or different license terms and conditions + for use, reproduction, or distribution of Your modifications, or + for any such Derivative Works as a whole, provided Your use, + reproduction, and distribution of the Work otherwise complies with + the conditions stated in this License. + + 5. Submission of Contributions. Unless You explicitly state otherwise, + any Contribution intentionally submitted for inclusion in the Work + by You to the Licensor shall be under the terms and conditions of + this License, without any additional terms or conditions. + Notwithstanding the above, nothing herein shall supersede or modify + the terms of any separate license agreement you may have executed + with Licensor regarding such Contributions. + + 6. Trademarks. This License does not grant permission to use the trade + names, trademarks, service marks, or product names of the Licensor, + except as required for reasonable and customary use in describing the + origin of the Work and reproducing the content of the NOTICE file. + + 7. Disclaimer of Warranty. Unless required by applicable law or + agreed to in writing, Licensor provides the Work (and each + Contributor provides its Contributions) on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or + implied, including, without limitation, any warranties or conditions + of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A + PARTICULAR PURPOSE. You are solely responsible for determining the + appropriateness of using or redistributing the Work and assume any + risks associated with Your exercise of permissions under this License. + + 8. Limitation of Liability. In no event and under no legal theory, + whether in tort (including negligence), contract, or otherwise, + unless required by applicable law (such as deliberate and grossly + negligent acts) or agreed to in writing, shall any Contributor be + liable to You for damages, including any direct, indirect, special, + incidental, or consequential damages of any character arising as a + result of this License or out of the use or inability to use the + Work (including but not limited to damages for loss of goodwill, + work stoppage, computer failure or malfunction, or any and all + other commercial damages or losses), even if such Contributor + has been advised of the possibility of such damages. + + 9. Accepting Warranty or Additional Liability. While redistributing + the Work or Derivative Works thereof, You may choose to offer, + and charge a fee for, acceptance of support, warranty, indemnity, + or other liability obligations and/or rights consistent with this + License. However, in accepting such obligations, You may act only + on Your own behalf and on Your sole responsibility, not on behalf + of any other Contributor, and only if You agree to indemnify, + defend, and hold each Contributor harmless for any liability + incurred by, or claims asserted against, such Contributor by reason + of your accepting any such warranty or additional liability. + + END OF TERMS AND CONDITIONS + + APPENDIX: How to apply the Apache License to your work. + + To apply the Apache License to your work, attach the following + boilerplate notice, with the fields enclosed by brackets "[]" + replaced with your own identifying information. (Don't include + the brackets!) The text should be enclosed in the appropriate + comment syntax for the file format. We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + diff --git a/Makefile.am b/Makefile.am new file mode 100644 index 0000000..099d971 --- /dev/null +++ b/Makefile.am @@ -0,0 +1,21 @@ +lib_LTLIBRARIES = libsoundpluginhalmfld.la + +libsoundpluginhalmfld_la_SOURCES = src/audio_hal_plugin_mfld.c \ + src/sound_card_control_mfld.c + +libsoundpluginhalmfld_la_CFLAGS = \ + $(MMCOMMON_CFLAGS) \ + -I$(srcdir)/include \ + $(MMLOGSVR_CFLAGS) -DMMF_LOG_OWNER=0x020 -DMMF_DEBUG_PREFIX=\"MMF-SOUND\" \ + $(AVSYSTEM_CFLAGS) \ + $(ALSA_CFLAGS) + +libsoundpluginhalmfld_la_LIBADD = $(MMCOMMON_LIBS) \ + $(MMLOGSVR_LIBS) \ + $(AVSYSTEM_LIBS) \ + $(ALSA_LIBS) + +install-exec-hook: + mkdir -p $(DESTDIR)$(libdir)/soundplugins + ln -sf /usr/lib/libsoundpluginhalmfld.so $(DESTDIR)$(libdir)/soundplugins/libsoundpluginhalmfld.so + diff --git a/autogen.sh b/autogen.sh new file mode 100755 index 0000000..1bf3d9c --- /dev/null +++ b/autogen.sh @@ -0,0 +1,5 @@ +aclocal +libtoolize --copy -f +autoheader +autoconf +automake --add-missing --copy --foreign diff --git a/configure.ac b/configure.ac new file mode 100644 index 0000000..f4d72b6 --- /dev/null +++ b/configure.ac @@ -0,0 +1,70 @@ +AC_PREREQ(2.52) + +AC_INIT([sound-plugin-hal-mfld-blackbay], [0.1]) +AM_INIT_AUTOMAKE([-Wall -Werror foreign]) +AC_CONFIG_HEADERS([config.h:config.hin]) + +AC_CONFIG_MACRO_DIR([m4]) + +# Checks for programs. +AC_PROG_CC +AC_C_CONST +dnl AC_FUNC_MALLOC +AC_FUNC_MMAP +AC_FUNC_REALLOC +AC_FUNC_SELECT_ARGTYPES +AC_FUNC_STAT +AC_FUNC_VPRINTF +AC_HEADER_STDBOOL +AC_HEADER_STDC +AC_HEADER_TIME +AC_PROG_GCC_TRADITIONAL +AC_PROG_LIBTOOL + +# Checks for libraries. +PKG_CHECK_MODULES(AVSYSTEM, avsysaudio) +AC_SUBST(AVSYSTEM_CFLAGS) +AC_SUBST(AVSYSTEM_LIBS) + +PKG_CHECK_MODULES(ALSA, alsa >= 1.0.15) +AC_SUBST(ALSA_CFLAGS) +AC_SUBST(ALSA_LIBS) + +PKG_CHECK_MODULES(MMCOMMON, mm-common) +AC_SUBST(MMCOMMON_CFLAGS) +AC_SUBST(MMCOMMON_LIBS) + +PKG_CHECK_MODULES(MMSOUND,mm-sound) +AC_SUBST(MMSOUND_CFLAGS) +AC_SUBST(MMSOUND_LIBS) + +if [test "x$IS_SDK" = "xyes"]; +then +echo "SDK build does not use mm-log" +else +PKG_CHECK_MODULES(MMLOG, mm-log) +AC_SUBST(MMLOG_CFLAGS) +AC_SUBST(MMLOG_LIBS) +fi + +# Checks for header files. +AC_HEADER_STDC +AC_CHECK_HEADERS([fcntl.h memory.h stdlib.h string.h sys/time.h unistd.h errno.h sys/types.h sys/stat.h]) + +# Checks for typedefs, structures, and compiler characteristics. +AC_C_CONST +AC_TYPE_PID_T +AC_TYPE_SIZE_T + +# Checks for library functions. +AC_FUNC_ALLOCA +AC_FUNC_FORK +AC_FUNC_MALLOC +AC_FUNC_MEMCMP +AC_FUNC_SELECT_ARGTYPES +AC_TYPE_SIGNAL +AC_CHECK_FUNCS([memset select]) +AC_CONFIG_FILES([ +Makefile +]) +AC_OUTPUT diff --git a/include/call_audio_mfld.h b/include/call_audio_mfld.h new file mode 100644 index 0000000..bbd0e92 --- /dev/null +++ b/include/call_audio_mfld.h @@ -0,0 +1,25 @@ +/* +* sound-plugin-hal-mfld-blackbay +* +* Copyright (C) 2013 Intel Corporation. All rights reserved. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +* +*/ + +typedef enum { + MODE_NORMAL = 0, + MODE_RINGTONE, + MODE_IN_CALL, + MODE_IN_COMMUNICATION +} mode_t; diff --git a/include/sound_card_control_mfld.h b/include/sound_card_control_mfld.h new file mode 100644 index 0000000..ec68794 --- /dev/null +++ b/include/sound_card_control_mfld.h @@ -0,0 +1,20 @@ +/* +* sound-plugin-hal-mfld-blackbay +* +* Copyright (C) 2013 Intel Corporation. All rights reserved. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +* +*/ + +int set_dual_out (void); diff --git a/packaging/sound-plugin-hal-mfld-blackbay.spec b/packaging/sound-plugin-hal-mfld-blackbay.spec new file mode 100644 index 0000000..1f44abb --- /dev/null +++ b/packaging/sound-plugin-hal-mfld-blackbay.spec @@ -0,0 +1,41 @@ +Name: sound-plugin-hal-mfld-blackbay +Summary: Audio HAL plugin for mfld blackbay +Version: 0.1 +Release: 1 +Group: System/Libraries +License: Apache-2.0 +Source0: %{name}-%{version}.tar.gz +Requires(post): /sbin/ldconfig +Requires(postun): /sbin/ldconfig +BuildRequires: pkgconfig(mm-common) +BuildRequires: pkgconfig(mm-log) +BuildRequires: pkgconfig(mm-sound) +BuildRequires: pkgconfig(avsystem) +BuildRequires: pkgconfig(alsa) + +%description +Audio HAL plugin package for mfld blackbay + +%prep +%setup -q + +%build +./autogen.sh +CFLAGS+=" -DEXPORT_API=\"__attribute__((visibility(\\\"default\\\")))\""; export CFLAGS +%configure --prefix=/usr +make %{?_smp_mflags} + +%install +%make_install + +%post +/sbin/ldconfig + +%postun +/sbin/ldconfig + + +%files +%defattr(-,root,root,-) +%{_libdir}/libsoundpluginhalmfld.so* +%{_libdir}/soundplugins/libsoundpluginhalmfld.so diff --git a/src/audio_hal_plugin_mfld.c b/src/audio_hal_plugin_mfld.c new file mode 100644 index 0000000..4c45493 --- /dev/null +++ b/src/audio_hal_plugin_mfld.c @@ -0,0 +1,176 @@ +/* +* sound-plugin-hal-mfld-blackbay +* +* Copyright (C) 2013 Intel Corporation. All rights reserved. +* +* Licensed under the Apache License, Version 2.0 (the "License"); +* you may not use this file except in compliance with the License. +* You may obtain a copy of the License at +* +* http://www.apache.org/licenses/LICENSE-2.0 +* +* Unless required by applicable law or agreed to in writing, software +* distributed under the License is distributed on an "AS IS" BASIS, +* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +* See the License for the specific language governing permissions and +* limitations under the License. +* +*/ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include "call_audio_mfld.h" +#include "sound_card_control_mfld.h" + +#define DEVICE_API_BLUETOOTH "bluez" +#define DEVICE_BUS_BLUETOOTH "bluetooth" +#define DEVICE_BUS_USB "usb" +#define DEVICE_API_ALSA "alsa" +#define DEVICE_BUS_WIRED "wired" +#define DEVICE_BUS_BUILTIN "builtin" + +#define DEVICE_API_MODEM "alsa_modem" +#define DEVICE_BUS_MODEM "modem" + +static int prev_mode = MODE_NORMAL; +static int current_mode = MODE_NORMAL; + +EXPORT_API +int MMSoundGetPluginType(void) +{ + return MM_SOUND_PLUGIN_TYPE_HAL; +} + +static int hal_plug_set_sound_path(int gain, int output, int input, int option) +{ + int ret = AUDIO_HAL_STATE_SUCCESS; + debug_fenter(); + debug_log ("[Input Param] gain %d, out %d, in %d, opt 0x%x", gain, output, input, option); + /* Check the gain */ + switch (gain) + { + case AVSYS_AUDIO_GAIN_EX_KEYTONE: + case AVSYS_AUDIO_GAIN_EX_ALARMTONE: + case AVSYS_AUDIO_GAIN_EX_AUDIOPLAYER: + case AVSYS_AUDIO_GAIN_EX_VIDEOPLAYER: + case AVSYS_AUDIO_GAIN_EX_CAMERA: + case AVSYS_AUDIO_GAIN_EX_GAME: + case AVSYS_AUDIO_GAIN_EX_RINGTONE: + case AVSYS_AUDIO_GAIN_EX_CALLTONE: + if (current_mode == MODE_IN_CALL) { + debug_log("MFLD: current mode is MODE_IN_CALL, skip audio path set"); + return ret; + } + /* NORMAL mode */ + /* Check dual_out option */ + if (option & AVSYS_AUDIO_PATH_OPTION_DUAL_OUT) { + debug_log("MFLD: Set audio path to dual out"); + ret = set_dual_out(); + return ret; + /* Check output device */ + } else if (output == AVSYS_AUDIO_PATH_EX_HEADSET) { + debug_log("MFLD: Set pulse default sink to wired_accessary"); + MMSoundMgrPulseSetDefaultSink (DEVICE_API_ALSA, DEVICE_BUS_WIRED); + } else if (output == AVSYS_AUDIO_PATH_EX_SPK) { + debug_log("MFLD: Set pulse default sink to speaker"); + MMSoundMgrPulseSetDefaultSink (DEVICE_API_ALSA, DEVICE_BUS_BUILTIN); + } + break; + + /* recorder */ + case AVSYS_AUDIO_GAIN_EX_VOICEREC: + case AVSYS_AUDIO_GAIN_EX_CAMCORDER: + break; + + case AVSYS_AUDIO_GAIN_EX_VOICECALL: + debug_log("MFLD: Set call audio sound path to 0x%x", output); + /* release path */ + if (output == AVSYS_AUDIO_PATH_EX_NONE && input == AVSYS_AUDIO_PATH_EX_NONE) { + prev_mode = current_mode; + current_mode = MODE_NORMAL; + } else if (current_mode != MODE_IN_CALL) { + prev_mode = current_mode; + current_mode = MODE_IN_CALL; + debug_log("MFLD: Set pulse default sink to modem for call audio mixing"); + MMSoundMgrPulseSetDefaultSink (DEVICE_API_MODEM, DEVICE_BUS_MODEM); + } + debug_log("MFLD: prev_mode=%d, cur_mode=%d", prev_mode, current_mode); + break; + + case AVSYS_AUDIO_GAIN_EX_VIDEOCALL: + case AVSYS_AUDIO_GAIN_EX_FMRADIO: + break; + } + /* Set Path (GAIN, OUT, IN) */ + if (AVSYS_FAIL(avsys_audio_set_path_ex(gain, output, input, option))) { + debug_error("avsys_audio_set_path_ex failed\n"); + ret = AUDIO_HAL_STATE_ERROR_INTERNAL; + } + debug_fleave(); + return ret; +} + +static int hal_plug_pulse_sink_route(int device) +{ + debug_fenter(); + /* Pulseaudio sink route */ + if (device & MM_SOUND_DEVICE_OUT_BT_A2DP) { + debug_log("MFLD: BT A2DP is active, Set pulse default sink to BLUEZ"); + MMSoundMgrPulseSetDefaultSink (DEVICE_API_BLUETOOTH, DEVICE_BUS_BLUETOOTH); + return AUDIO_HAL_ROUTE_SUCCESS_AND_GOTOEND; + } else if (device & MM_SOUND_DEVICE_OUT_WFD) { +#ifdef USE_PULSE_WFD /* Not enabled yet */ + debug_log("MFLD: WFD is active, Set pulse default sink to WFD"); + MMSoundMgrPulseSetDefaultSink (DEVICE_API_WFD, DEVICE_BUS_BUILTIN); + return AUDIO_HAL_ROUTE_SUCCESS_AND_GOTOEND; +#endif + } else if (device & MM_SOUND_DEVICE_OUT_USB_AUDIO){ + debug_log("MFLD: USB Audio is active, Set default sink to USB Audio"); + MMSoundMgrPulseSetDefaultSink (DEVICE_API_ALSA, DEVICE_BUS_USB); + return AUDIO_HAL_ROUTE_SUCCESS_AND_GOTOEND; + } + debug_fleave(); + return AUDIO_HAL_STATE_SUCCESS; +} + +static int hal_plug_pulse_source_route(int device) +{ + return AUDIO_HAL_STATE_SUCCESS; +} + +static int hal_plug_init() +{ + return AUDIO_HAL_STATE_SUCCESS; +} + +static int hal_plug_fini() +{ + return AUDIO_HAL_STATE_SUCCESS; +} + +EXPORT_API +int MMSoundPlugHALGetInterface(mmsound_hal_interface_t *intf) +{ + debug_fenter (); + if(intf) { + intf->pulse_source_route = hal_plug_pulse_source_route; + intf->pulse_sink_route = hal_plug_pulse_sink_route; + intf->set_sound_path = hal_plug_set_sound_path; + intf->init=hal_plug_init; + intf->fini=hal_plug_fini; + } + debug_fleave (); + return AUDIO_HAL_STATE_SUCCESS; +} + diff --git a/src/sound_card_control_mfld.c b/src/sound_card_control_mfld.c new file mode 100644 index 0000000..5428e56 --- /dev/null +++ b/src/sound_card_control_mfld.c @@ -0,0 +1,254 @@ +/* + * sound-plugin-hal-mfld-blackbay + * + * Copyright (C) 2013 Intel Corporation. All rights reserved. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +#include +#include +#include + +#include +#include + +const char * card = "hw:3"; + +typedef struct { + snd_ctl_elem_info_t *info; + snd_ctl_elem_id_t *id; + snd_ctl_elem_value_t *control; +}snd_stack_t; + +static int prepare_snd_ctl(snd_ctl_t *handle, snd_stack_t *stack, + snd_ctl_elem_type_t *type, unsigned int *count, int numid) +{ + int err = 0; + memset(stack->id, 0, snd_ctl_elem_id_sizeof()); + memset(stack->info, 0, snd_ctl_elem_info_sizeof()); + memset(stack->control, 0, snd_ctl_elem_value_sizeof()); + + /* Set interface */ + snd_ctl_elem_id_set_interface(stack->id, SND_CTL_ELEM_IFACE_MIXER); + + if (numid > 0) + snd_ctl_elem_id_set_numid(stack->id, numid); + + /* init info id */ + snd_ctl_elem_info_set_id(stack->info, stack->id); + + /* get info */ + err = snd_ctl_elem_info(handle, stack->info); + if (err < 0) { + debug_error("get info err : %s", snd_strerror(err)); + return -1; + } + + /* get type */ + *type = snd_ctl_elem_info_get_type(stack->info); + + /* get count */ + *count = snd_ctl_elem_info_get_count(stack->info); + + /* set value id */ + snd_ctl_elem_value_set_id(stack->control, stack->id); + return 0; +} + +static int sound_card_hw_io(int set_flag, snd_ctl_t *handle, snd_stack_t *stack, + snd_ctl_elem_type_t *type, unsigned int *count, int value, int *out_val) +{ + unsigned int idx; + long tmp; + int err = 0; + + if (!set_flag) { + /* read element */ + err = snd_ctl_elem_read(handle, stack->control); + if (err < 0) { + debug_error("read element err :%s", snd_strerror(err)); + return -1; + } + + for (idx = 0; idx < *count && idx < 128; idx++) { + switch (*type) + { + case SND_CTL_ELEM_TYPE_BOOLEAN: + *out_val = snd_ctl_elem_value_get_boolean(stack->control, idx); + break; + case SND_CTL_ELEM_TYPE_INTEGER: + *out_val = snd_ctl_elem_value_get_integer(stack->control, idx); + break; + case SND_CTL_ELEM_TYPE_INTEGER64: + *out_val = snd_ctl_elem_value_get_integer64(stack->control, idx); + break; + case SND_CTL_ELEM_TYPE_ENUMERATED: + *out_val = snd_ctl_elem_value_get_enumerated(stack->control, idx); + break; + case SND_CTL_ELEM_TYPE_BYTES: + *out_val = snd_ctl_elem_value_get_byte(stack->control, idx); + break; + default: + debug_error("Unknown control element type"); + return -1; + } + debug_log("Read alsa element, idx=%d out_val=%d\n", idx, *out_val); + } + } else { + /* set value */ + tmp = value; + for (idx = 0; idx < *count && idx < 128; idx++) + { + switch (*type) + { + case SND_CTL_ELEM_TYPE_BOOLEAN: + snd_ctl_elem_value_set_boolean(stack->control, idx, tmp); + break; + case SND_CTL_ELEM_TYPE_INTEGER: + snd_ctl_elem_value_set_integer(stack->control, idx, tmp); + break; + case SND_CTL_ELEM_TYPE_INTEGER64: + snd_ctl_elem_value_set_integer64(stack->control, idx, tmp); + break; + case SND_CTL_ELEM_TYPE_ENUMERATED: + snd_ctl_elem_value_set_enumerated(stack->control, idx, tmp); + break; + case SND_CTL_ELEM_TYPE_BYTES: + snd_ctl_elem_value_set_byte(stack->control, idx, tmp); + break; + default: + debug_error("Unknown control element type"); + return -1; + } + + debug_log("Write alsa element, idx=%u value=%ld\n", idx, tmp); + /* Write element */ + err = snd_ctl_elem_write(handle, stack->control); + if (err < 0) { + debug_error("snd_ctl_elem_write err: %s", snd_strerror(err)); + /* Close sound control */ + return -1; + } + } + } + return 0; +} + +static int sound_card_ctrl_get(int numid, int *out_val) +{ + snd_ctl_t *handle = NULL; + snd_stack_t stack; + snd_ctl_elem_type_t type; + unsigned int count; + int err = 0; + + snd_ctl_elem_id_alloca(&(stack.id)); + snd_ctl_elem_info_alloca(&(stack.info)); + snd_ctl_elem_value_alloca(&(stack.control)); + + err = snd_ctl_open(&handle, card, 0); + if (err < 0) { + debug_error("control %s open err: %s", card, snd_strerror(err)); + return -1; + } + + err = prepare_snd_ctl(handle, &stack, &type, &count, numid); + if (err < 0) { + debug_error("prepare hw err:%d", err); + goto error; + } + + err = sound_card_hw_io(0, handle, &stack, &type, &count, 0, out_val); + if (err < 0) { + debug_error("ctl hw io err:%d", err); + goto error; + } + snd_ctl_close(handle); + return 0; + +error: + snd_ctl_close(handle); + return -1; +} + +static int sound_card_ctrl_set(int numid, int value) +{ + snd_ctl_t *handle = NULL; + snd_stack_t stack; + snd_ctl_elem_type_t type; + unsigned int count; + int err = 0; + + snd_ctl_elem_id_alloca(&(stack.id)); + snd_ctl_elem_info_alloca(&(stack.info)); + snd_ctl_elem_value_alloca(&(stack.control)); + + err = snd_ctl_open(&handle, card, 0); + if (err < 0) { + debug_error("control %s open err: %s", card, snd_strerror(err)); + return -1; + } + + err = prepare_snd_ctl(handle, &stack, &type, &count, numid); + if (err < 0) { + debug_error("prepare hw err:%d", err); + goto error; + } + + /* set value */ + err = sound_card_hw_io(1, handle, &stack, &type, &count, value, NULL); + if (err < 0) { + debug_error("ctl hw io err%d", err); + goto error; + } + snd_ctl_close(handle); + return 0; + +error: + snd_ctl_close(handle); + return -1; +} + +int set_dual_out(void ) +{ + int err = 0; + int headset_route; + + debug_fenter(); + /* check if switching to headset: numid=34 "Headset Playback Route" */ + err = sound_card_ctrl_get(34, &headset_route); + if (err < 0) { + debug_error("MFLD: failed to get alsa element for headset route"); + return 1; + } + + if (headset_route == 0) { + debug_log("MFLD: headset is inserted, set dual out"); + /* set dual out: numid=35 "Speaker Mux Playback Route" 1,1 */ + err = sound_card_ctrl_set(35, 1); + if (err < 0) { + debug_error("MFLD: failed to set alsa element for dual out"); + return 1; + } + debug_log("MFLD: set dual out successfully"); + } + else { + debug_log("MFLD: headset is not inserted, skip the set"); + } + + debug_fleave(); + return 0; +} + -- 2.7.4