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Commit d0ec32ef authored by Varun Balaraj's avatar Varun Balaraj Committed by Garmond Leung
Browse files

hal : Test to receive events from kernel 

 - Test app to wait for events of Hdmi-in connection state, audio present state,
   sample rate changes.
 - Added code to send edid data by using sysfs exposed by kernel.

Change-Id: Ia68df476397e8aed2aba299337377fe948ff9434
parent 2fab6895

Makefile.am

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Original line number Diff line number Diff line 
SUBDIRS = hal post_proc



if QAHW_SUPPORT

SUBDIRS += qahw_api qahw_api/test

SUBDIRS += qahw_api qahw_api/test hdmi_in_test

endif



ACLOCAL_AMFLAGS = -I m4

configure.ac

+2 −1
Original line number Diff line number Diff line
@@ -120,7 +120,8 @@ AC_CONFIG_FILES([ \ 
        hal/Makefile \

        post_proc/Makefile \

        qahw_api/Makefile \

        qahw_api/test/Makefile

        qahw_api/test/Makefile \

        hdmi_in_test/Makefile

        ])



AC_OUTPUT

hdmi_in_test/Makefile.am

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Original line number Diff line number Diff line 


ACLOCAL_AMFLAGS = -I m4

bin_PROGRAMS = hdmi_in_test

pkgconfigdir = $(libdir)/pkgconfig



hdmi_in_test_SOURCES = src/hdmi_in_event_test.c

hdmi_in_test_CFLAGS  = $(CFLAGS) -Wno-sign-compare -Werror

hdmi_in_test_LDADD = -llog -lpthread

hdmi_in_test/src/edid.h

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Original line number Diff line number Diff line 
/*

 * Copyright (c) 2017, The Linux Foundation. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions are

 * met:

 *    * Redistributions of source code must retain the above copyright

 *      notice, this list of conditions and the following disclaimer.

 *    * Redistributions in binary form 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.

 *    * Neither the name of The Linux Foundation nor the names of its

 *      contributors may be used to endorse or promote products derived

 *      from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED

 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER 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.

 */



uint8_t default_edid[] = {

/* Block 0 (EDID Base Block) */

0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00,

/* Vendor Identification */

0x45, 0x23, 0xDD, 0xDD, 0x01, 0x01, 0x01, 0x01, 0x01, 0x16,

/* EDID Structure Version and Revision */

0x01, 0x03,

/* Display Parameters */

0x80, 0x90, 0x51, 0x78, 0x0A,

/* Color characteristics */

0x0D, 0xC9, 0xA0, 0x57, 0x47, 0x98, 0x27, 0x12, 0x48, 0x4C,

/* Established Timings */

0x21, 0x08, 0x00,

/* Standard Timings */

0x81, 0x80, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,

0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,

/* Detailed Descriptors */

0x02, 0x3A, 0x80, 0x18, 0x71, 0x38, 0x2D, 0x40,

0x58, 0x2C,

0x45, 0x00, 0xA0, 0x2A, 0x53, 0x00, 0x00, 0x1E,

/* Detailed Descriptors */

0x01, 0x1D, 0x00, 0x72, 0x51, 0xD0, 0x1E, 0x20,

0x6E, 0x28, 0x55, 0x00, 0xA0, 0x2A, 0x53, 0x00,

0x00, 0x1E,

/* Monitor Descriptor */

0x00, 0x00, 0x00, 0xFD, 0x00, 0x3A, 0x3E, 0x0F,

0x46, 0x0F, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20,

0x20, 0x20,

/* Monitor Descriptor */

0x00, 0x00, 0x00, 0xFC, 0x00, 0x54, 0x56, 0x0A,

0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,

0x20, 0x20,

/* Extension Flag */

0x01,

/*checksum */

0x9A,



/* Block 1 (Extension Block) */

/* Extension Header */

0x02, 0x03, 0x37,

/* Display supports */

0xF0,

/* Video Data Bock */

0x4A, 0x10, 0x04, 0x05, 0x03, 0x02, 0x07, 0x06,

0x20, 0x01, 0x3C,

/* Audio Data Block */

0x29,

0x09, 0x07, 0x07, /* LPCM, max 2 ch, 48k, 44.1k, 32k */

0x15, 0x07, 0x50, /* AC-3, max 6 ch, 48k, 44.1k, 32k, max bitrate 640*/

0x3D, 0x07, 0x50, /* DTS, max 6ch, 48,44.1,32k, max br 640*/

/* Speaker Allocation Data Block */

0x83, 0x01, 0x00, 0x00,

/* HDMI VSDB */

/* no deep color, Max_TMDS_Clock = 165 MHz*/

0x76, 0x03, 0x0C, 0x00, 0x30, 0x00, 0x80, 0x21,

/* hdmi_video_present=1, 3d_present=1, 3d_multi_present=0,

hdmi_vic_len=0, hdmi_3d_len=0xC*/

0x2F, 0x88, 0x0C, 0x20, 0x90, 0x08, 0x10, 0x18,

0x10, 0x28, 0x10, 0x78, 0x10, 0x06, 0x26,

/* VCDB */

0xE2, 0x00, 0x7B,

/* Detailed Descriptor */

0x01, 0x1D, 0x80, 0x18, 0x71, 0x1C, 0x16, 0x20,

0x58, 0x2C, 0x25, 0x00, 0xA0, 0x2A, 0x53, 0x00,

0x00, 0x9E,

/* Detailed Descriptor */

0x8C, 0x0A, 0xD0, 0x8A, 0x20, 0xE0, 0x2D, 0x10,

0x10, 0x3E, 0x96, 0x00, 0xA0, 0x2A, 0x53, 0x00,

0x00, 0x18,

/* Detailed Descriptor */

0x8C, 0x0A, 0xD0, 0x8A, 0x20, 0xE0, 0x2D, 0x10,

0x10, 0x3E, 0x96, 0x00, 0x38, 0x2A, 0x43, 0x00,

0x00, 0x18,

/* Detailed Descriptor */

0x8C, 0x0A, 0xA0, 0x14, 0x51, 0xF0, 0x16, 0x00,

0x26, 0x7C, 0x43, 0x00, 0x38, 0x2A, 0x43, 0x00,

0x00, 0x98,

/* checksum */

0x38

};



uint8_t edid_with_addtnl_snd_formats[] = {

/* Block 0 (EDID Base Block) */

0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00,

/* Vendor Identification */

0x1E, 0x6D, 0x01, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x17,

/* EDID Structure Version and Revision */

0x01, 0x03,

/* Display Parameters */

0x80, 0xa0, 0x5A, 0x78, 0x0A,

/* Color characteristics */

0xEE, 0x91, 0xa3, 0x54, 0x4c, 0x99, 0x26, 0x0f, 0x50, 0x54,

/* Established Timings */

0xa1, 0x08, 0x00,



0x31, 0x40, 0x45, 0x40, 0x61, 0x40, 0x71, 0x40,

0x81, 0x80, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,



0x02, 0x3a, 0x80, 0x18, 0x71, 0x38, 0x2d, 0x40,

0x58, 0x2c,

0x45, 0x00, 0xa0, 0x5a, 0x00, 0x00, 0x00, 0x1e,



0x66, 0x21, 0x50, 0xb0, 0x51, 0x00, 0x1b, 0x30,

0x40, 0x70, 0x36, 0x00, 0xa0, 0x5a, 0x00, 0x00,

0x00, 0x1e,



0x00, 0x00, 0x00, 0xfd, 0x00, 0x3a, 0x3e, 0x1e,

0x53, 0x10, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20,

0x20, 0x20,



0x00, 0x00, 0x00, 0xfc, 0x00, 0x4c, 0x47, 0x20,

0x54, 0x56, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20,

0x20, 0x20,



/* Extension Flag */

0x01,

/*checksum */

0x42,



/* Block 1 (Extension Block) */

/* Extension Header */

0x02, 0x03, 0x37,

/* Display supports */

0xF0,

/* Video Data Bock */

0x4E, 0x10, 0x9F, 0x04, 0x13, 0x05, 0x14, 0x03, 0x02, 0x12, 0x20, 0x21,

0x22, 0x15, 0x01,



/* Audio Data Block */

0x2F,

0x3D, 0x06, 0xC0,

0x15, 0x07, 0x50,

0x0F, 0x57, 0x07,

0x57, 0x06, 0x00,

0x5F, 0x7E, 0x01,



/* Speaker Allocation Data Block */

0x67, 0x03, 0x0C, 0x00,



0x30, 0x00, 0x80, 0x1E, 0xE3, 0x05, 0x00, 0x00, 0x01,



0x1D, 0x80, 0x18, 0x71, 0x1C, 0x16, 0x20, 0x58, 0x2C, 0x25, 0x00,

0xA0, 0x5A, 0x00, 0x00, 0x00,

0x9E, 0x01, 0x1D, 0x00, 0x80, 0x51, 0xD0, 0x1A, 0x20, 0x6E, 0x88,

0x55, 0x00, 0xA0, 0x5A, 0x00,

0x00, 0x00, 0x1A, 0x02, 0x3A, 0x80, 0x18, 0x71, 0x38, 0x2D, 0x40,

0x58, 0x2C, 0x45, 0x00, 0xA0,

0x5A, 0x00, 0x00, 0x00, 0x1E, 0x66, 0x21, 0x50, 0xB0, 0x51, 0x00,

0x1B, 0x30, 0x40, 0x70, 0x36,

0x00, 0xA0, 0x5A, 0x00, 0x00, 0x00, 0x1E, 0x00, 0x00, 0x00, 0x00,

0x00, 0x00, 0x00, 0x00,

/* checksum */

0xFB

};

hdmi_in_test/src/hdmi_in_event_test.c

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Original line number Diff line number Diff line 
/*

 * Copyright (c) 2017, The Linux Foundation. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions are

 * met:

 *    * Redistributions of source code must retain the above copyright

 *      notice, this list of conditions and the following disclaimer.

 *    * Redistributions in binary form 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.

 *    * Neither the name of The Linux Foundation nor the names of its

 *      contributors may be used to endorse or promote products derived

 *      from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED

 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER 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.

 */



/* Test app to capture event updates from kernel */

/*#define LOG_NDEBUG 0*/

#include <fcntl.h>

#include <linux/netlink.h>

#include <pthread.h>

#include <poll.h>

#include <stdio.h>

#include <string.h>

#include <sys/prctl.h>

#include <sys/stat.h>

#include <sys/socket.h>

#include <sys/types.h>

#include <utils/Log.h>

#include "edid.h"



static int sock_event_fd = -1;



int hdmi_conn_state = 0;

int hdmi_audio_state = 0;

int hdmi_audio_format = 0;

int hdmi_sample_rate = 0;

int hdmi_num_channels = 0;



const char hdmi_in_audio_sys_path[] =

                               "/sys/devices/virtual/switch/hpd_state/state";

const char hdmi_in_audio_dev_path[] = "/devices/virtual/switch/hpd_state";

const char hdmi_in_audio_state_sys_path[] =

                               "/sys/devices/virtual/switch/audio_state/state";

const char hdmi_in_audio_state_dev_path[] =

                               "/devices/virtual/switch/audio_state";

const char hdmi_in_audio_format_sys_path[] =

                               "/sys/devices/virtual/switch/audio_format/state";

const char hdmi_in_audio_format_dev_path[] =

                               "/devices/virtual/switch/audio_format";

const char hdmi_in_audio_sample_rate_sys_path[] =

                               "/sys/devices/virtual/switch/sample_rate/state";

const char hdmi_in_audio_sample_rate_dev_path[] =

                               "/devices/virtual/switch/sample_rate";

const char hdmi_in_audio_channel_sys_path[] =

                               "/sys/devices/virtual/switch/channels/state";

const char hdmi_in_audio_channel_dev_path[] =

                               "/devices/virtual/switch/channels";



pthread_t poll_event_th;

pthread_attr_t poll_event_attr;



void send_edid_data()

{

    int fd = -1;

    int ret;

    char path[] =

"/sys/devices/soc/ca0c000.qcom,cci/ca0c000.qcom,cci:toshiba,tc358840@0/tc358840_audio_data";



    fd = open(path, O_WRONLY, 0);

    if (fd < 0) {

        ALOGE("Unable open fd for file %s", path);

        return;

    }



    ret = write(fd, default_edid, sizeof(default_edid));



    close(fd);

}



void read_data_from_fd(const char* path, int *value)

{

    int fd = -1;

    char buf[16];

    int ret;



    fd = open(path, O_RDONLY, 0);

    if (fd < 0) {

        ALOGE("Unable open fd for file %s", path);

        return;

    }



    ret = read(fd, buf, 15);

    if (ret < 0) {

        ALOGE("File %s Data is empty", path);

        close(fd);

        return;

    }



    buf[ret] = '\0';

    *value = atoi(buf);

    close(fd);

}



void get_hdmi_status()

{

    read_data_from_fd(hdmi_in_audio_sys_path, &hdmi_conn_state);

    read_data_from_fd(hdmi_in_audio_state_sys_path, &hdmi_audio_state);

    read_data_from_fd(hdmi_in_audio_format_sys_path, &hdmi_audio_format);

    read_data_from_fd(hdmi_in_audio_sample_rate_sys_path, &hdmi_sample_rate);

    read_data_from_fd(hdmi_in_audio_channel_sys_path, &hdmi_num_channels);



    ALOGI("HDMI In state: %d, audio_state: %d, audio_format: %d,",

		hdmi_conn_state, hdmi_audio_state, hdmi_audio_format);

    ALOGI(" hdmi_sample_rate: %d, hdmi_num_channels: %d\n",

		hdmi_sample_rate, hdmi_num_channels);

}



int poll_event_init()

{

    struct sockaddr_nl sock_addr;

    int sz = (64*1024);

    int soc;



    memset(&sock_addr, 0, sizeof(sock_addr));

    sock_addr.nl_family = AF_NETLINK;

    sock_addr.nl_pid = getpid();

    sock_addr.nl_groups = 0xffffffff;



    soc = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_KOBJECT_UEVENT);

    if (soc < 0) {

        return 0;

    }



    setsockopt(soc, SOL_SOCKET, SO_RCVBUFFORCE, &sz, sizeof(sz));



    if (bind(soc, (struct sockaddr*) &sock_addr, sizeof(sock_addr)) < 0) {

        close(soc);

        return 0;

    }



    sock_event_fd = soc;



    return (soc > 0);

}



void listen_uevent(void *ptr)

{

    char buffer[64*1024];

    struct pollfd fds;

    int i, count;

    int j;

    char *dev_path = NULL;

    char *switch_state = NULL;

    char *switch_name = NULL;



    while(1) {



        fds.fd = sock_event_fd;

        fds.events = POLLIN;

        fds.revents = 0;

        i = poll(&fds, 1, -1);



        if (i > 0 && (fds.revents & POLLIN)) {

            count = recv(sock_event_fd, buffer, (64*1024), 0 );

            if (count > 0) {

                buffer[count] = '\0';

                j = 0;

                while(j < count) {

                    if (strncmp(&buffer[j], "DEVPATH=", 8) == 0) {

                        dev_path = &buffer[j+8];

                        j += 8;

                        continue;

                    } else if (strncmp(&buffer[j], "SWITCH_NAME=", 12) == 0) {

                        switch_name = &buffer[j+12];

                        j += 12;

                        continue;

                    } else if (strncmp(&buffer[j], "SWITCH_STATE=", 13) == 0) {

                        switch_state = &buffer[j+13];

                        j += 13;

                        continue;

                    }

                    j++;

                }

                ALOGI("devpath = %s, switch_name = %s \n",

                                         dev_path, switch_name);



                if (strncmp(hdmi_in_audio_dev_path, dev_path,

                                strlen(hdmi_in_audio_dev_path)) == 0) {

                    get_hdmi_status();

                } else if (strncmp(hdmi_in_audio_sample_rate_dev_path, dev_path,

                                strlen(hdmi_in_audio_sample_rate_dev_path)) == 0) {

                    get_hdmi_status();

                } else if (strncmp(hdmi_in_audio_state_dev_path, dev_path,

                                strlen(hdmi_in_audio_state_dev_path)) == 0) {

                    get_hdmi_status();

                } else if (strncmp(hdmi_in_audio_channel_dev_path, dev_path,

                                strlen(hdmi_in_audio_channel_dev_path)) == 0) {

                    get_hdmi_status();

                }

            }

        } else {

            ALOGD("NO Data\n");

        }

    }

}



int main()

{

    ALOGI("hdmi-in event test\n");



    pthread_attr_init(&poll_event_attr);

    pthread_attr_setdetachstate(&poll_event_attr, PTHREAD_CREATE_JOINABLE);

    poll_event_init();

    pthread_create(&poll_event_th, &poll_event_attr,

                       (void *) listen_uevent, NULL);

    get_hdmi_status();



    /* Enable once kernel side write is proper

    send_edid_data();*/

    pthread_join(poll_event_th, NULL);

    ALOGI("hdmi-in event test exit\n");

    return 0;

}