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Commit 8c03e67b authored by David Lin's avatar David Lin
Browse files

hal: add usb audio tunnel support 



This patch imports the USB audio tunnel feature from QCOM software release
AU_LINUX_ANDROID_LA.UM.5.7.R1.07.00.00.253.

Bug: 33030406
Test: playback, record and path switching

Change-Id: I2479f984c0d72b2f4e9b6a7db22eb4616855b7e7
Signed-off-by: default avatarDavid Lin <dtwlin@google.com>
parent 240fc432

hal/Android.mk

+5 −0
Original line number Diff line number Diff line
@@ -74,6 +74,11 @@ ifdef MULTIPLE_HW_VARIANTS_ENABLED 
  LOCAL_SRC_FILES +=  $(AUDIO_PLATFORM)/hw_info.c

endif



ifeq ($(strip $(AUDIO_FEATURE_ENABLED_USB_TUNNEL)),true)

    LOCAL_CFLAGS += -DUSB_TUNNEL_ENABLED

    LOCAL_SRC_FILES += audio_extn/usb.c

endif



LOCAL_SHARED_LIBRARIES := \

	liblog \

	libcutils \

hal/audio_extn/audio_extn.h

+25 −0
Original line number Diff line number Diff line
@@ -70,6 +70,31 @@ int audio_extn_hfp_set_mic_mute(struct audio_device *adev, bool state); 


#endif



#ifndef USB_TUNNEL_ENABLED

#define audio_extn_usb_init(adev)                                      (0)

#define audio_extn_usb_deinit()                                        (0)

#define audio_extn_usb_add_device(device, card)                        (0)

#define audio_extn_usb_remove_device(device, card)                     (0)

#define audio_extn_usb_is_config_supported(bit_width, sample_rate, ch, pb) (false)

#define audio_extn_usb_enable_sidetone(device, enable)                 (0)

#define audio_extn_usb_set_sidetone_gain(parms, value, len)            (0)

#define audio_extn_usb_is_capture_supported()                          (false)

#else

void audio_extn_usb_init(void *adev);

void audio_extn_usb_deinit();

void audio_extn_usb_add_device(audio_devices_t device, int card);

void audio_extn_usb_remove_device(audio_devices_t device, int card);

bool audio_extn_usb_is_config_supported(unsigned int *bit_width,

                                        unsigned int *sample_rate,

                                        unsigned int *ch,

                                        bool is_playback);

int audio_extn_usb_enable_sidetone(int device, bool enable);

int audio_extn_usb_set_sidetone_gain(struct str_parms *parms,

                                     char *value, int len);

bool audio_extn_usb_is_capture_supported();

#endif





#ifndef SOUND_TRIGGER_ENABLED

#define audio_extn_sound_trigger_init(adev)                            (0)

#define audio_extn_sound_trigger_deinit(adev)                          (0)

hal/audio_extn/usb.c

0 → 100644
+1034 −0

File added.

Preview size limit exceeded, changes collapsed.

hal/audio_hw.c

+41 −1
Original line number Diff line number Diff line
@@ -855,6 +855,8 @@ static void check_and_route_playback_usecases(struct audio_device *adev, 
    bool switch_device[AUDIO_USECASE_MAX];

    int i, num_uc_to_switch = 0;



    platform_check_and_set_playback_backend_cfg(adev, uc_info, snd_device);



    /*

     * This function is to make sure that all the usecases that are active on

     * the hardware codec backend are always routed to any one device that is
@@ -1199,7 +1201,8 @@ int select_devices(struct audio_device *adev, 


    /* Enable new sound devices */

    if (out_snd_device != SND_DEVICE_NONE) {

        if (usecase->devices & AUDIO_DEVICE_OUT_ALL_CODEC_BACKEND)

        if ((usecase->devices & AUDIO_DEVICE_OUT_ALL_CODEC_BACKEND) ||

            (usecase->devices & AUDIO_DEVICE_OUT_USB_DEVICE))

            check_and_route_playback_usecases(adev, usecase, out_snd_device);

        enable_snd_device(adev, out_snd_device);

    }
@@ -3555,6 +3558,43 @@ static int adev_set_parameters(struct audio_hw_device *dev, const char *kvpairs) 
        adev->bt_wb_speech_enabled = !strcmp(value, AUDIO_PARAMETER_VALUE_ON);

    }



    ret = str_parms_get_str(parms, AUDIO_PARAMETER_DEVICE_CONNECT, value, sizeof(value));

    if (ret >= 0) {

        audio_devices_t device = (audio_devices_t)strtoul(value, NULL, 10);

        if (device == AUDIO_DEVICE_OUT_USB_DEVICE) {

            ret = str_parms_get_str(parms, "card", value, sizeof(value));

            if (ret >= 0) {

                const int card = atoi(value);

                audio_extn_usb_add_device(AUDIO_DEVICE_OUT_USB_DEVICE, card);

            }

        } else if (device == AUDIO_DEVICE_IN_USB_DEVICE) {

            ret = str_parms_get_str(parms, "card", value, sizeof(value));

            if (ret >= 0) {

                const int card = atoi(value);

                audio_extn_usb_add_device(AUDIO_DEVICE_IN_USB_DEVICE, card);

            }

        }

    }



    ret = str_parms_get_str(parms, AUDIO_PARAMETER_DEVICE_DISCONNECT, value, sizeof(value));

    if (ret >= 0) {

        audio_devices_t device = (audio_devices_t)strtoul(value, NULL, 10);

        if (device == AUDIO_DEVICE_OUT_USB_DEVICE) {

            ret = str_parms_get_str(parms, "card", value, sizeof(value));

            if (ret >= 0) {

                const int card = atoi(value);



                audio_extn_usb_remove_device(AUDIO_DEVICE_OUT_USB_DEVICE, card);

            }

        } else if (device == AUDIO_DEVICE_IN_USB_DEVICE) {

            ret = str_parms_get_str(parms, "card", value, sizeof(value));

            if (ret >= 0) {

                const int card = atoi(value);

                audio_extn_usb_remove_device(AUDIO_DEVICE_IN_USB_DEVICE, card);

            }

        }

    }



    audio_extn_hfp_set_parameters(adev, parms);

done:

    str_parms_destroy(parms);

hal/audio_hw.h

+2 −0
Original line number Diff line number Diff line
@@ -49,6 +49,8 @@ 
#define ACDB_DEV_TYPE_IN 2



#define MAX_SUPPORTED_CHANNEL_MASKS 2

#define MAX_SUPPORTED_FORMATS 15

#define MAX_SUPPORTED_SAMPLE_RATES 7

#define DEFAULT_HDMI_OUT_CHANNELS   2



#define ERROR_LOG_ENTRIES 16