/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * Copyright (c) 2014 Hans Petter Selasky
 * Copyright (c) 2018 The FreeBSD Foundation
 * All rights reserved.
 *
 * Portions of this software were developed by Edward Tomasz Napierala
 * under sponsorship from the FreeBSD Foundation.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR 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.
 */

/*
 * This file contains the USB template for an USB phone device.
 */

#ifdef USB_GLOBAL_INCLUDE_FILE
#include USB_GLOBAL_INCLUDE_FILE
#else
#include <sys/stdint.h>
#include <sys/stddef.h>
#include <sys/param.h>
#include <sys/queue.h>
#include <sys/types.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/module.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#include <sys/sysctl.h>
#include <sys/sx.h>
#include <sys/unistd.h>
#include <sys/callout.h>
#include <sys/malloc.h>
#include <sys/priv.h>

#include <dev/usb/usb.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usb_core.h>
#include <dev/usb/usb_cdc.h>
#include <dev/usb/usb_ioctl.h>
#include <dev/usb/usb_util.h>

#include <dev/usb/template/usb_template.h>
#endif                  /* USB_GLOBAL_INCLUDE_FILE */

enum {
        PHONE_LANG_INDEX,
        PHONE_MIXER_INDEX,
        PHONE_RECORD_INDEX,
        PHONE_PLAYBACK_INDEX,
        PHONE_HID_INDEX,
        PHONE_MANUFACTURER_INDEX,
        PHONE_PRODUCT_INDEX,
        PHONE_SERIAL_NUMBER_INDEX,
        PHONE_MAX_INDEX,
};

#define PHONE_DEFAULT_VENDOR_ID         USB_TEMPLATE_VENDOR
#define PHONE_DEFAULT_PRODUCT_ID        0x05dc
#define PHONE_DEFAULT_MIXER             "Mixer interface"
#define PHONE_DEFAULT_RECORD            "Record interface"
#define PHONE_DEFAULT_PLAYBACK          "Playback interface"
#define PHONE_DEFAULT_HID               "HID interface"
#define PHONE_DEFAULT_MANUFACTURER      USB_TEMPLATE_MANUFACTURER
#define PHONE_DEFAULT_PRODUCT           "USB Phone Device"
#define PHONE_DEFAULT_SERIAL_NUMBER     "March 2008"

static struct usb_string_descriptor     phone_mixer;
static struct usb_string_descriptor     phone_record;
static struct usb_string_descriptor     phone_playback;
static struct usb_string_descriptor     phone_hid;
static struct usb_string_descriptor     phone_manufacturer;
static struct usb_string_descriptor     phone_product;
static struct usb_string_descriptor     phone_serial_number;

static struct sysctl_ctx_list           phone_ctx_list;

/* prototypes */

/*
 * Phone Mixer description structures
 *
 * Some of the phone descriptors were dumped from no longer in
 * production Yealink VOIP USB phone adapter:
 */
static uint8_t phone_hid_descriptor[] = {
        0x05, 0x0b, 0x09, 0x01, 0xa1, 0x01, 0x05, 0x09,
        0x19, 0x01, 0x29, 0x3f, 0x15, 0x00, 0x25, 0x01,
        0x75, 0x01, 0x95, 0x80, 0x81, 0x00, 0x05, 0x08,
        0x19, 0x01, 0x29, 0x10, 0x15, 0x00, 0x25, 0x01,
        0x75, 0x01, 0x95, 0x80, 0x91, 0x00, 0xc0
};

static const uint8_t phone_raw_desc_0[] = {
        0x0a, 0x24, 0x01, 0x00, 0x01, 0x4a, 0x00, 0x02,
        0x01, 0x02
};

static const uint8_t phone_raw_desc_1[] = {
        0x0c, 0x24, 0x02, 0x01, 0x01, 0x02, 0x00, 0x01,
        0x00, 0x00, 0x00, 0x00
};

static const uint8_t phone_raw_desc_2[] = {
        0x0c, 0x24, 0x02, 0x02, 0x01, 0x01, 0x00, 0x01,
        0x00, 0x00, 0x00, 0x00
};

static const uint8_t phone_raw_desc_3[] = {
        0x09, 0x24, 0x03, 0x03, 0x01, 0x03, 0x00, 0x06,
        0x00
};

static const uint8_t phone_raw_desc_4[] = {
        0x09, 0x24, 0x03, 0x04, 0x01, 0x01, 0x00, 0x05,
        0x00
};

static const uint8_t phone_raw_desc_5[] = {
        0x0b, 0x24, 0x06, 0x05, 0x01, 0x02, 0x03, 0x00,
        0x03, 0x00, 0x00
};

static const uint8_t phone_raw_desc_6[] = {
        0x0b, 0x24, 0x06, 0x06, 0x02, 0x02, 0x03, 0x00,
        0x03, 0x00, 0x00
};

static const void *phone_raw_iface_0_desc[] = {
        phone_raw_desc_0,
        phone_raw_desc_1,
        phone_raw_desc_2,
        phone_raw_desc_3,
        phone_raw_desc_4,
        phone_raw_desc_5,
        phone_raw_desc_6,
        NULL,
};

static const struct usb_temp_interface_desc phone_iface_0 = {
        .ppEndpoints = NULL,            /* no endpoints */
        .ppRawDesc = phone_raw_iface_0_desc,
        .bInterfaceClass = UICLASS_AUDIO,
        .bInterfaceSubClass = UISUBCLASS_AUDIOCONTROL,
        .bInterfaceProtocol = 0,
        .iInterface = PHONE_MIXER_INDEX,
};

static const uint8_t phone_raw_desc_20[] = {
        0x07, 0x24, 0x01, 0x04, 0x01, 0x01, 0x00
};

static const uint8_t phone_raw_desc_21[] = {
        0x0b, 0x24, 0x02, 0x01, 0x01, 0x02, 0x10, 0x01,
        /* 8kHz */
        0x40, 0x1f, 0x00
};

static const uint8_t phone_raw_desc_22[] = {
        0x07, 0x25, 0x01, 0x00, 0x00, 0x00, 0x00
};

static const void *phone_raw_iface_1_desc[] = {
        phone_raw_desc_20,
        phone_raw_desc_21,
        NULL,
};

static const void *phone_raw_ep_1_desc[] = {
        phone_raw_desc_22,
        NULL,
};

static const struct usb_temp_packet_size phone_isoc_mps = {
        .mps[USB_SPEED_FULL] = 0x10,
        .mps[USB_SPEED_HIGH] = 0x10,
};

static const struct usb_temp_interval phone_isoc_interval = {
        .bInterval[USB_SPEED_FULL] = 1, /* 1:1 */
        .bInterval[USB_SPEED_HIGH] = 4, /* 1:8 */
};

static const struct usb_temp_endpoint_desc phone_isoc_in_ep = {
        .ppRawDesc = phone_raw_ep_1_desc,
        .pPacketSize = &phone_isoc_mps,
        .pIntervals = &phone_isoc_interval,
        .bEndpointAddress = UE_DIR_IN,
        .bmAttributes = UE_ISOCHRONOUS,
};

static const struct usb_temp_endpoint_desc *phone_iface_1_ep[] = {
        &phone_isoc_in_ep,
        NULL,
};

static const struct usb_temp_interface_desc phone_iface_1_alt_0 = {
        .ppEndpoints = NULL,            /* no endpoints */
        .ppRawDesc = NULL,              /* no raw descriptors */
        .bInterfaceClass = UICLASS_AUDIO,
        .bInterfaceSubClass = UISUBCLASS_AUDIOSTREAM,
        .bInterfaceProtocol = 0,
        .iInterface = PHONE_PLAYBACK_INDEX,
};

static const struct usb_temp_interface_desc phone_iface_1_alt_1 = {
        .ppEndpoints = phone_iface_1_ep,
        .ppRawDesc = phone_raw_iface_1_desc,
        .bInterfaceClass = UICLASS_AUDIO,
        .bInterfaceSubClass = UISUBCLASS_AUDIOSTREAM,
        .bInterfaceProtocol = 0,
        .iInterface = PHONE_PLAYBACK_INDEX,
        .isAltInterface = 1,            /* this is an alternate setting */
};

static const uint8_t phone_raw_desc_30[] = {
        0x07, 0x24, 0x01, 0x02, 0x01, 0x01, 0x00
};

static const uint8_t phone_raw_desc_31[] = {
        0x0b, 0x24, 0x02, 0x01, 0x01, 0x02, 0x10, 0x01,
        /* 8kHz */
        0x40, 0x1f, 0x00
};

static const uint8_t phone_raw_desc_32[] = {
        0x07, 0x25, 0x01, 0x00, 0x00, 0x00, 0x00
};

static const void *phone_raw_iface_2_desc[] = {
        phone_raw_desc_30,
        phone_raw_desc_31,
        NULL,
};

static const void *phone_raw_ep_2_desc[] = {
        phone_raw_desc_32,
        NULL,
};

static const struct usb_temp_endpoint_desc phone_isoc_out_ep = {
        .ppRawDesc = phone_raw_ep_2_desc,
        .pPacketSize = &phone_isoc_mps,
        .pIntervals = &phone_isoc_interval,
        .bEndpointAddress = UE_DIR_OUT,
        .bmAttributes = UE_ISOCHRONOUS,
};

static const struct usb_temp_endpoint_desc *phone_iface_2_ep[] = {
        &phone_isoc_out_ep,
        NULL,
};

static const struct usb_temp_interface_desc phone_iface_2_alt_0 = {
        .ppEndpoints = NULL,            /* no endpoints */
        .ppRawDesc = NULL,              /* no raw descriptors */
        .bInterfaceClass = UICLASS_AUDIO,
        .bInterfaceSubClass = UISUBCLASS_AUDIOSTREAM,
        .bInterfaceProtocol = 0,
        .iInterface = PHONE_RECORD_INDEX,
};

static const struct usb_temp_interface_desc phone_iface_2_alt_1 = {
        .ppEndpoints = phone_iface_2_ep,
        .ppRawDesc = phone_raw_iface_2_desc,
        .bInterfaceClass = UICLASS_AUDIO,
        .bInterfaceSubClass = UISUBCLASS_AUDIOSTREAM,
        .bInterfaceProtocol = 0,
        .iInterface = PHONE_RECORD_INDEX,
        .isAltInterface = 1,            /* this is an alternate setting */
};

static const uint8_t phone_hid_raw_desc_0[] = {
        0x09, 0x21, 0x00, 0x01, 0x00, 0x01, 0x22, sizeof(phone_hid_descriptor),
        0x00
};

static const void *phone_hid_desc_0[] = {
        phone_hid_raw_desc_0,
        NULL,
};

static const struct usb_temp_packet_size phone_hid_mps = {
        .mps[USB_SPEED_FULL] = 0x10,
        .mps[USB_SPEED_HIGH] = 0x10,
};

static const struct usb_temp_interval phone_hid_interval = {
        .bInterval[USB_SPEED_FULL] = 2,         /* 2ms */
        .bInterval[USB_SPEED_HIGH] = 2,         /* 2ms */
};

static const struct usb_temp_endpoint_desc phone_hid_in_ep = {
        .pPacketSize = &phone_hid_mps,
        .pIntervals = &phone_hid_interval,
        .bEndpointAddress = UE_DIR_IN,
        .bmAttributes = UE_INTERRUPT,
};

static const struct usb_temp_endpoint_desc *phone_iface_3_ep[] = {
        &phone_hid_in_ep,
        NULL,
};

static const struct usb_temp_interface_desc phone_iface_3 = {
        .ppEndpoints = phone_iface_3_ep,
        .ppRawDesc = phone_hid_desc_0,
        .bInterfaceClass = UICLASS_HID,
        .bInterfaceSubClass = 0,
        .bInterfaceProtocol = 0,
        .iInterface = PHONE_HID_INDEX,
};

static const struct usb_temp_interface_desc *phone_interfaces[] = {
        &phone_iface_0,
        &phone_iface_1_alt_0,
        &phone_iface_1_alt_1,
        &phone_iface_2_alt_0,
        &phone_iface_2_alt_1,
        &phone_iface_3,
        NULL,
};

static const struct usb_temp_config_desc phone_config_desc = {
        .ppIfaceDesc = phone_interfaces,
        .bmAttributes = 0,
        .bMaxPower = 0,
        .iConfiguration = PHONE_PRODUCT_INDEX,
};

static const struct usb_temp_config_desc *phone_configs[] = {
        &phone_config_desc,
        NULL,
};

static usb_temp_get_string_desc_t phone_get_string_desc;
static usb_temp_get_vendor_desc_t phone_get_vendor_desc;

struct usb_temp_device_desc usb_template_phone = {
        .getStringDesc = &phone_get_string_desc,
        .getVendorDesc = &phone_get_vendor_desc,
        .ppConfigDesc = phone_configs,
        .idVendor = PHONE_DEFAULT_VENDOR_ID,
        .idProduct = PHONE_DEFAULT_PRODUCT_ID,
        .bcdDevice = 0x0100,
        .bDeviceClass = UDCLASS_IN_INTERFACE,
        .bDeviceSubClass = 0,
        .bDeviceProtocol = 0,
        .iManufacturer = PHONE_MANUFACTURER_INDEX,
        .iProduct = PHONE_PRODUCT_INDEX,
        .iSerialNumber = PHONE_SERIAL_NUMBER_INDEX,
};

/*------------------------------------------------------------------------*
 *      phone_get_vendor_desc
 *
 * Return values:
 * NULL: Failure. No such vendor descriptor.
 * Else: Success. Pointer to vendor descriptor is returned.
 *------------------------------------------------------------------------*/
static const void *
phone_get_vendor_desc(const struct usb_device_request *req, uint16_t *plen)
{
        if ((req->bmRequestType == 0x81) && (req->bRequest == 0x06) &&
            (req->wValue[0] == 0x00) && (req->wValue[1] == 0x22) &&
            (req->wIndex[1] == 0) && (req->wIndex[0] == 3 /* iface */)) {
                *plen = sizeof(phone_hid_descriptor);
                return (phone_hid_descriptor);
        }
        return (NULL);
}

/*------------------------------------------------------------------------*
 *      phone_get_string_desc
 *
 * Return values:
 * NULL: Failure. No such string.
 * Else: Success. Pointer to string descriptor is returned.
 *------------------------------------------------------------------------*/
static const void *
phone_get_string_desc(uint16_t lang_id, uint8_t string_index)
{
        static const void *ptr[PHONE_MAX_INDEX] = {
                [PHONE_LANG_INDEX] = &usb_string_lang_en,
                [PHONE_MIXER_INDEX] = &phone_mixer,
                [PHONE_RECORD_INDEX] = &phone_record,
                [PHONE_PLAYBACK_INDEX] = &phone_playback,
                [PHONE_HID_INDEX] = &phone_hid,
                [PHONE_MANUFACTURER_INDEX] = &phone_manufacturer,
                [PHONE_PRODUCT_INDEX] = &phone_product,
                [PHONE_SERIAL_NUMBER_INDEX] = &phone_serial_number,
        };

        if (string_index == 0) {
                return (&usb_string_lang_en);
        }
        if (lang_id != 0x0409) {
                return (NULL);
        }
        if (string_index < PHONE_MAX_INDEX) {
                return (ptr[string_index]);
        }
        return (NULL);
}

static void
phone_init(void *arg __unused)
{
        struct sysctl_oid *parent;
        char parent_name[3];

        usb_make_str_desc(&phone_mixer, sizeof(phone_mixer),
            PHONE_DEFAULT_MIXER);
        usb_make_str_desc(&phone_record, sizeof(phone_record),
            PHONE_DEFAULT_RECORD);
        usb_make_str_desc(&phone_playback, sizeof(phone_playback),
            PHONE_DEFAULT_PLAYBACK);
        usb_make_str_desc(&phone_hid, sizeof(phone_hid),
            PHONE_DEFAULT_HID);
        usb_make_str_desc(&phone_manufacturer, sizeof(phone_manufacturer),
            PHONE_DEFAULT_MANUFACTURER);
        usb_make_str_desc(&phone_product, sizeof(phone_product),
            PHONE_DEFAULT_PRODUCT);
        usb_make_str_desc(&phone_serial_number, sizeof(phone_serial_number),
            PHONE_DEFAULT_SERIAL_NUMBER);

        snprintf(parent_name, sizeof(parent_name), "%d", USB_TEMP_PHONE);
        sysctl_ctx_init(&phone_ctx_list);

        parent = SYSCTL_ADD_NODE(&phone_ctx_list,
            SYSCTL_STATIC_CHILDREN(_hw_usb_templates), OID_AUTO,
            parent_name, CTLFLAG_RW | CTLFLAG_MPSAFE,
            0, "USB Phone device side template");
        SYSCTL_ADD_U16(&phone_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO,
            "vendor_id", CTLFLAG_RWTUN,
            &usb_template_cdce.idVendor, 1, "Vendor identifier");
        SYSCTL_ADD_U16(&phone_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO,
            "product_id", CTLFLAG_RWTUN,
            &usb_template_cdce.idProduct, 1, "Product identifier");
#if 0
        SYSCTL_ADD_PROC(&phone_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO,
            "mixer", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE,
            &phone_mixer, sizeof(phone_mixer), usb_temp_sysctl,
            "A", "Mixer interface string");
        SYSCTL_ADD_PROC(&phone_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO,
            "record", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE,
            &phone_record, sizeof(phone_record), usb_temp_sysctl,
            "A", "Record interface string");
        SYSCTL_ADD_PROC(&phone_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO,
            "playback", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE,
            &phone_playback, sizeof(phone_playback), usb_temp_sysctl,
            "A", "Playback interface string");
        SYSCTL_ADD_PROC(&phone_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO,
            "hid", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE,
            &phone_hid, sizeof(phone_hid), usb_temp_sysctl,
            "A", "HID interface string");
#endif
        SYSCTL_ADD_PROC(&phone_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO,
            "manufacturer", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE,
            &phone_manufacturer, sizeof(phone_manufacturer), usb_temp_sysctl,
            "A", "Manufacturer string");
        SYSCTL_ADD_PROC(&phone_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO,
            "product", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE,
            &phone_product, sizeof(phone_product), usb_temp_sysctl,
            "A", "Product string");
        SYSCTL_ADD_PROC(&phone_ctx_list, SYSCTL_CHILDREN(parent), OID_AUTO,
            "serial_number", CTLTYPE_STRING | CTLFLAG_RWTUN | CTLFLAG_MPSAFE,
            &phone_serial_number, sizeof(phone_serial_number), usb_temp_sysctl,
            "A", "Serial number string");
}

static void
phone_uninit(void *arg __unused)
{

        sysctl_ctx_free(&phone_ctx_list);
}

SYSINIT(phone_init, SI_SUB_LOCK, SI_ORDER_FIRST, phone_init, NULL);
SYSUNINIT(phone_uninit, SI_SUB_LOCK, SI_ORDER_FIRST, phone_uninit, NULL);