// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *
 *  Bluetooth support for Broadcom devices
 *
 *  Copyright (C) 2015  Intel Corporation
 */

#include <linux/efi.h>
#include <linux/module.h>
#include <linux/firmware.h>
#include <linux/dmi.h>
#include <linux/of.h>
#include <linux/string.h>
#include <linux/unaligned.h>

#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>

#include "btbcm.h"

#define VERSION "0.1"

#define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
#define BDADDR_BCM20702A1 (&(bdaddr_t) {{0x00, 0x00, 0xa0, 0x02, 0x70, 0x20}})
#define BDADDR_BCM2076B1 (&(bdaddr_t) {{0x79, 0x56, 0x00, 0xa0, 0x76, 0x20}})
#define BDADDR_BCM43430A0 (&(bdaddr_t) {{0xac, 0x1f, 0x12, 0xa0, 0x43, 0x43}})
#define BDADDR_BCM43430A1 (&(bdaddr_t) {{0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa}})
#define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}})
#define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}})
#define BDADDR_BCM4334B0 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb0, 0x34, 0x43}})
#define BDADDR_BCM4345C5 (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0xc5, 0x45, 0x43}})
#define BDADDR_BCM43341B (&(bdaddr_t) {{0xac, 0x1f, 0x00, 0x1b, 0x34, 0x43}})

#define BCM_FW_NAME_LEN                 64
#define BCM_FW_NAME_COUNT_MAX           4
/* For kmalloc-ing the fw-name array instead of putting it on the stack */
typedef char bcm_fw_name[BCM_FW_NAME_LEN];

#ifdef CONFIG_EFI
static int btbcm_set_bdaddr_from_efi(struct hci_dev *hdev)
{
        efi_guid_t guid = EFI_GUID(0x74b00bd9, 0x805a, 0x4d61, 0xb5, 0x1f,
                                   0x43, 0x26, 0x81, 0x23, 0xd1, 0x13);
        bdaddr_t efi_bdaddr, bdaddr;
        efi_status_t status;
        unsigned long len;
        int ret;

        if (!efi_rt_services_supported(EFI_RT_SUPPORTED_GET_VARIABLE))
                return -EOPNOTSUPP;

        len = sizeof(efi_bdaddr);
        status = efi.get_variable(L"BDADDR", &guid, NULL, &len, &efi_bdaddr);
        if (status != EFI_SUCCESS)
                return -ENXIO;

        if (len != sizeof(efi_bdaddr))
                return -EIO;

        baswap(&bdaddr, &efi_bdaddr);

        ret = btbcm_set_bdaddr(hdev, &bdaddr);
        if (ret)
                return ret;

        bt_dev_info(hdev, "BCM: Using EFI device address (%pMR)", &bdaddr);
        return 0;
}
#else
static int btbcm_set_bdaddr_from_efi(struct hci_dev *hdev)
{
        return -EOPNOTSUPP;
}
#endif

int btbcm_check_bdaddr(struct hci_dev *hdev)
{
        struct hci_rp_read_bd_addr *bda;
        struct sk_buff *skb;

        skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
                             HCI_INIT_TIMEOUT);
        if (IS_ERR(skb)) {
                int err = PTR_ERR(skb);

                bt_dev_err(hdev, "BCM: Reading device address failed (%d)", err);
                return err;
        }

        if (skb->len != sizeof(*bda)) {
                bt_dev_err(hdev, "BCM: Device address length mismatch");
                kfree_skb(skb);
                return -EIO;
        }

        bda = (struct hci_rp_read_bd_addr *)skb->data;

        /* Check if the address indicates a controller with either an
         * invalid or default address. In both cases the device needs
         * to be marked as not having a valid address.
         *
         * The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
         * with no configured address.
         *
         * The address 20:70:02:A0:00:00 indicates a BCM20702A1 controller
         * with no configured address.
         *
         * The address 20:76:A0:00:56:79 indicates a BCM2076B1 controller
         * with no configured address.
         *
         * The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller
         * with waiting for configuration state.
         *
         * The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller
         * with waiting for configuration state.
         *
         * The address 43:43:A0:12:1F:AC indicates a BCM43430A0 controller
         * with no configured address.
         *
         * The address AA:AA:AA:AA:AA:AA indicates a BCM43430A1 controller
         * with no configured address.
         */
        if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) ||
            !bacmp(&bda->bdaddr, BDADDR_BCM20702A1) ||
            !bacmp(&bda->bdaddr, BDADDR_BCM2076B1) ||
            !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) ||
            !bacmp(&bda->bdaddr, BDADDR_BCM4330B1) ||
            !bacmp(&bda->bdaddr, BDADDR_BCM4334B0) ||
            !bacmp(&bda->bdaddr, BDADDR_BCM4345C5) ||
            !bacmp(&bda->bdaddr, BDADDR_BCM43430A0) ||
            !bacmp(&bda->bdaddr, BDADDR_BCM43430A1) ||
            !bacmp(&bda->bdaddr, BDADDR_BCM43341B)) {
                /* Try falling back to BDADDR EFI variable */
                if (btbcm_set_bdaddr_from_efi(hdev) != 0) {
                        bt_dev_info(hdev, "BCM: Using default device address (%pMR)",
                                    &bda->bdaddr);
                        hci_set_quirk(hdev, HCI_QUIRK_INVALID_BDADDR);
                }
        }

        kfree_skb(skb);

        return 0;
}
EXPORT_SYMBOL_GPL(btbcm_check_bdaddr);

int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
{
        struct sk_buff *skb;
        int err;

        skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
        if (IS_ERR(skb)) {
                err = PTR_ERR(skb);
                bt_dev_err(hdev, "BCM: Change address command failed (%d)", err);
                return err;
        }
        kfree_skb(skb);

        return 0;
}
EXPORT_SYMBOL_GPL(btbcm_set_bdaddr);

int btbcm_read_pcm_int_params(struct hci_dev *hdev,
                              struct bcm_set_pcm_int_params *params)
{
        struct sk_buff *skb;
        int err = 0;

        skb = __hci_cmd_sync(hdev, 0xfc1d, 0, NULL, HCI_INIT_TIMEOUT);
        if (IS_ERR(skb)) {
                err = PTR_ERR(skb);
                bt_dev_err(hdev, "BCM: Read PCM int params failed (%d)", err);
                return err;
        }

        if (skb->len != 6 || skb->data[0]) {
                bt_dev_err(hdev, "BCM: Read PCM int params length mismatch");
                kfree_skb(skb);
                return -EIO;
        }

        if (params)
                memcpy(params, skb->data + 1, 5);

        kfree_skb(skb);

        return 0;
}
EXPORT_SYMBOL_GPL(btbcm_read_pcm_int_params);

int btbcm_write_pcm_int_params(struct hci_dev *hdev,
                               const struct bcm_set_pcm_int_params *params)
{
        struct sk_buff *skb;
        int err;

        skb = __hci_cmd_sync(hdev, 0xfc1c, 5, params, HCI_INIT_TIMEOUT);
        if (IS_ERR(skb)) {
                err = PTR_ERR(skb);
                bt_dev_err(hdev, "BCM: Write PCM int params failed (%d)", err);
                return err;
        }
        kfree_skb(skb);

        return 0;
}
EXPORT_SYMBOL_GPL(btbcm_write_pcm_int_params);

int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw)
{
        const struct hci_command_hdr *cmd;
        const u8 *fw_ptr;
        size_t fw_size;
        struct sk_buff *skb;
        u16 opcode;
        int err = 0;

        /* Start Download */
        skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
        if (IS_ERR(skb)) {
                err = PTR_ERR(skb);
                bt_dev_err(hdev, "BCM: Download Minidrv command failed (%d)",
                           err);
                goto done;
        }
        kfree_skb(skb);

        /* 50 msec delay after Download Minidrv completes */
        msleep(50);

        fw_ptr = fw->data;
        fw_size = fw->size;

        while (fw_size >= sizeof(*cmd)) {
                const u8 *cmd_param;

                cmd = (struct hci_command_hdr *)fw_ptr;
                fw_ptr += sizeof(*cmd);
                fw_size -= sizeof(*cmd);

                if (fw_size < cmd->plen) {
                        bt_dev_err(hdev, "BCM: Patch is corrupted");
                        err = -EINVAL;
                        goto done;
                }

                cmd_param = fw_ptr;
                fw_ptr += cmd->plen;
                fw_size -= cmd->plen;

                opcode = le16_to_cpu(cmd->opcode);

                skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
                                     HCI_INIT_TIMEOUT);
                if (IS_ERR(skb)) {
                        err = PTR_ERR(skb);
                        bt_dev_err(hdev, "BCM: Patch command %04x failed (%d)",
                                   opcode, err);
                        goto done;
                }
                kfree_skb(skb);
        }

        /* 250 msec delay after Launch Ram completes */
        msleep(250);

done:
        return err;
}
EXPORT_SYMBOL(btbcm_patchram);

static int btbcm_reset(struct hci_dev *hdev)
{
        struct sk_buff *skb;

        skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
        if (IS_ERR(skb)) {
                int err = PTR_ERR(skb);

                bt_dev_err(hdev, "BCM: Reset failed (%d)", err);
                return err;
        }
        kfree_skb(skb);

        /* 100 msec delay for module to complete reset process */
        msleep(100);

        return 0;
}

static struct sk_buff *btbcm_read_local_name(struct hci_dev *hdev)
{
        struct sk_buff *skb;

        skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL,
                             HCI_INIT_TIMEOUT);
        if (IS_ERR(skb)) {
                bt_dev_err(hdev, "BCM: Reading local name failed (%ld)",
                           PTR_ERR(skb));
                return skb;
        }

        if (skb->len != sizeof(struct hci_rp_read_local_name)) {
                bt_dev_err(hdev, "BCM: Local name length mismatch");
                kfree_skb(skb);
                return ERR_PTR(-EIO);
        }

        return skb;
}

static struct sk_buff *btbcm_read_local_version(struct hci_dev *hdev)
{
        struct sk_buff *skb;

        skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
                             HCI_INIT_TIMEOUT);
        if (IS_ERR(skb)) {
                bt_dev_err(hdev, "BCM: Reading local version info failed (%ld)",
                           PTR_ERR(skb));
                return skb;
        }

        if (skb->len != sizeof(struct hci_rp_read_local_version)) {
                bt_dev_err(hdev, "BCM: Local version length mismatch");
                kfree_skb(skb);
                return ERR_PTR(-EIO);
        }

        return skb;
}

static struct sk_buff *btbcm_read_verbose_config(struct hci_dev *hdev)
{
        struct sk_buff *skb;

        skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT);
        if (IS_ERR(skb)) {
                bt_dev_err(hdev, "BCM: Read verbose config info failed (%ld)",
                           PTR_ERR(skb));
                return skb;
        }

        if (skb->len != 7) {
                bt_dev_err(hdev, "BCM: Verbose config length mismatch");
                kfree_skb(skb);
                return ERR_PTR(-EIO);
        }

        return skb;
}

static struct sk_buff *btbcm_read_controller_features(struct hci_dev *hdev)
{
        struct sk_buff *skb;

        skb = __hci_cmd_sync(hdev, 0xfc6e, 0, NULL, HCI_INIT_TIMEOUT);
        if (IS_ERR(skb)) {
                bt_dev_err(hdev, "BCM: Read controller features failed (%ld)",
                           PTR_ERR(skb));
                return skb;
        }

        if (skb->len != 9) {
                bt_dev_err(hdev, "BCM: Controller features length mismatch");
                kfree_skb(skb);
                return ERR_PTR(-EIO);
        }

        return skb;
}

static struct sk_buff *btbcm_read_usb_product(struct hci_dev *hdev)
{
        struct sk_buff *skb;

        skb = __hci_cmd_sync(hdev, 0xfc5a, 0, NULL, HCI_INIT_TIMEOUT);
        if (IS_ERR(skb)) {
                bt_dev_err(hdev, "BCM: Read USB product info failed (%ld)",
                           PTR_ERR(skb));
                return skb;
        }

        if (skb->len != 5) {
                bt_dev_err(hdev, "BCM: USB product length mismatch");
                kfree_skb(skb);
                return ERR_PTR(-EIO);
        }

        return skb;
}

static const struct dmi_system_id disable_broken_read_transmit_power[] = {
        {
                 .matches = {
                        DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,1"),
                },
        },
        {
                 .matches = {
                        DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,2"),
                },
        },
        {
                 .matches = {
                        DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro16,4"),
                },
        },
        {
                 .matches = {
                        DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,1"),
                },
        },
        {
                 .matches = {
                        DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir8,2"),
                },
        },
        {
                 .matches = {
                        DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,1"),
                },
        },
        {
                 .matches = {
                        DMI_MATCH(DMI_BOARD_VENDOR, "Apple Inc."),
                        DMI_MATCH(DMI_PRODUCT_NAME, "iMac20,2"),
                },
        },
        { }
};

static int btbcm_read_info(struct hci_dev *hdev)
{
        struct sk_buff *skb;

        /* Read Verbose Config Version Info */
        skb = btbcm_read_verbose_config(hdev);
        if (IS_ERR(skb))
                return PTR_ERR(skb);

        bt_dev_info(hdev, "BCM: chip id %u", skb->data[1]);
        kfree_skb(skb);

        return 0;
}

static int btbcm_print_controller_features(struct hci_dev *hdev)
{
        struct sk_buff *skb;

        /* Read Controller Features */
        skb = btbcm_read_controller_features(hdev);
        if (IS_ERR(skb))
                return PTR_ERR(skb);

        bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);
        kfree_skb(skb);

        /* Read DMI and disable broken Read LE Min/Max Tx Power */
        if (dmi_first_match(disable_broken_read_transmit_power))
                hci_set_quirk(hdev, HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER);

        return 0;
}

static int btbcm_print_local_name(struct hci_dev *hdev)
{
        struct sk_buff *skb;

        /* Read Local Name */
        skb = btbcm_read_local_name(hdev);
        if (IS_ERR(skb))
                return PTR_ERR(skb);

        bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
        kfree_skb(skb);

        return 0;
}

struct bcm_subver_table {
        u16 subver;
        const char *name;
};

static const struct bcm_subver_table bcm_uart_subver_table[] = {
        { 0x1111, "BCM4362A2"   },      /* 000.017.017 */
        { 0x4103, "BCM4330B1"   },      /* 002.001.003 */
        { 0x410d, "BCM4334B0"   },      /* 002.001.013 */
        { 0x410e, "BCM43341B0"  },      /* 002.001.014 */
        { 0x4204, "BCM2076B1"   },      /* 002.002.004 */
        { 0x4406, "BCM4324B3"   },      /* 002.004.006 */
        { 0x4606, "BCM4324B5"   },      /* 002.006.006 */
        { 0x6109, "BCM4335C0"   },      /* 003.001.009 */
        { 0x610c, "BCM4354"     },      /* 003.001.012 */
        { 0x2122, "BCM4343A0"   },      /* 001.001.034 */
        { 0x2209, "BCM43430A1"  },      /* 001.002.009 */
        { 0x6119, "BCM4345C0"   },      /* 003.001.025 */
        { 0x6606, "BCM4345C5"   },      /* 003.006.006 */
        { 0x230f, "BCM4356A2"   },      /* 001.003.015 */
        { 0x220e, "BCM20702A1"  },      /* 001.002.014 */
        { 0x420d, "BCM4349B1"   },      /* 002.002.013 */
        { 0x420e, "BCM4349B1"   },      /* 002.002.014 */
        { 0x4217, "BCM4329B1"   },      /* 002.002.023 */
        { 0x6106, "BCM4359C0"   },      /* 003.001.006 */
        { 0x4106, "BCM4335A0"   },      /* 002.001.006 */
        { 0x410c, "BCM43430B0"  },      /* 002.001.012 */
        { 0x2119, "BCM4373A0"   },      /* 001.001.025 */
        { }
};

static const struct bcm_subver_table bcm_usb_subver_table[] = {
        { 0x2105, "BCM20703A1"  },      /* 001.001.005 */
        { 0x210b, "BCM43142A0"  },      /* 001.001.011 */
        { 0x2112, "BCM4314A0"   },      /* 001.001.018 */
        { 0x2118, "BCM20702A0"  },      /* 001.001.024 */
        { 0x2126, "BCM4335A0"   },      /* 001.001.038 */
        { 0x220e, "BCM20702A1"  },      /* 001.002.014 */
        { 0x230f, "BCM4356A2"   },      /* 001.003.015 */
        { 0x4106, "BCM4335B0"   },      /* 002.001.006 */
        { 0x410e, "BCM20702B0"  },      /* 002.001.014 */
        { 0x6109, "BCM4335C0"   },      /* 003.001.009 */
        { 0x610c, "BCM4354"     },      /* 003.001.012 */
        { 0x6607, "BCM4350C5"   },      /* 003.006.007 */
        { }
};

/*
 * This currently only looks up the device tree board appendix,
 * but can be expanded to other mechanisms.
 */
static const char *btbcm_get_board_name(struct device *dev)
{
#ifdef CONFIG_OF
        struct device_node *root __free(device_node) = of_find_node_by_path("/");
        char *board_type;
        const char *tmp;

        if (!root)
                return NULL;

        if (of_property_read_string_index(root, "compatible", 0, &tmp))
                return NULL;

        /* get rid of any '/' in the compatible string */
        board_type = devm_kstrdup(dev, tmp, GFP_KERNEL);
        if (!board_type)
                return NULL;

        strreplace(board_type, '/', '-');

        return board_type;
#else
        return NULL;
#endif
}

int btbcm_initialize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud_mode)
{
        u16 subver, rev, pid, vid;
        struct sk_buff *skb;
        struct hci_rp_read_local_version *ver;
        const struct bcm_subver_table *bcm_subver_table;
        const char *hw_name = NULL;
        const char *board_name;
        char postfix[16] = "";
        int fw_name_count = 0;
        bcm_fw_name *fw_name;
        const struct firmware *fw;
        int i, err;

        board_name = btbcm_get_board_name(&hdev->dev);

        /* Reset */
        err = btbcm_reset(hdev);
        if (err)
                return err;

        /* Read Local Version Info */
        skb = btbcm_read_local_version(hdev);
        if (IS_ERR(skb))
                return PTR_ERR(skb);

        ver = (struct hci_rp_read_local_version *)skb->data;
        rev = le16_to_cpu(ver->hci_rev);
        subver = le16_to_cpu(ver->lmp_subver);
        kfree_skb(skb);

        /* Read controller information */
        if (!(*fw_load_done)) {
                err = btbcm_read_info(hdev);
                if (err)
                        return err;
        }

        if (!use_autobaud_mode) {
                err = btbcm_print_controller_features(hdev);
                if (err)
                        return err;

                err = btbcm_print_local_name(hdev);
                if (err)
                        return err;
        }

        bcm_subver_table = (hdev->bus == HCI_USB) ? bcm_usb_subver_table :
                                                    bcm_uart_subver_table;

        for (i = 0; bcm_subver_table[i].name; i++) {
                if (subver == bcm_subver_table[i].subver) {
                        hw_name = bcm_subver_table[i].name;
                        break;
                }
        }

        bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u",
                    hw_name ? hw_name : "BCM", (subver & 0xe000) >> 13,
                    (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);

        if (*fw_load_done)
                return 0;

        if (hdev->bus == HCI_USB) {
                /* Read USB Product Info */
                skb = btbcm_read_usb_product(hdev);
                if (IS_ERR(skb))
                        return PTR_ERR(skb);

                vid = get_unaligned_le16(skb->data + 1);
                pid = get_unaligned_le16(skb->data + 3);
                kfree_skb(skb);

                snprintf(postfix, sizeof(postfix), "-%4.4x-%4.4x", vid, pid);
        }

        fw_name = kmalloc_array(BCM_FW_NAME_COUNT_MAX,
                sizeof(*fw_name),
                GFP_KERNEL);
        if (!fw_name)
                return -ENOMEM;

        if (hw_name) {
                if (board_name) {
                        snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
                                 "brcm/%s%s.%s.hcd", hw_name, postfix, board_name);
                        fw_name_count++;
                }
                snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
                         "brcm/%s%s.hcd", hw_name, postfix);
                fw_name_count++;
        }

        if (board_name) {
                snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
                         "brcm/BCM%s.%s.hcd", postfix, board_name);
                fw_name_count++;
        }
        snprintf(fw_name[fw_name_count], BCM_FW_NAME_LEN,
                 "brcm/BCM%s.hcd", postfix);
        fw_name_count++;

        for (i = 0; i < fw_name_count; i++) {
                err = firmware_request_nowarn(&fw, fw_name[i], &hdev->dev);
                if (err == 0) {
                        bt_dev_info(hdev, "%s '%s' Patch",
                                    hw_name ? hw_name : "BCM", fw_name[i]);
                        *fw_load_done = true;
                        break;
                }
        }

        if (*fw_load_done) {
                err = btbcm_patchram(hdev, fw);
                if (err)
                        bt_dev_info(hdev, "BCM: Patch failed (%d)", err);

                release_firmware(fw);
        } else {
                bt_dev_err(hdev, "BCM: firmware Patch file not found, tried:");
                for (i = 0; i < fw_name_count; i++)
                        bt_dev_err(hdev, "BCM: '%s'", fw_name[i]);
        }

        kfree(fw_name);
        return 0;
}
EXPORT_SYMBOL_GPL(btbcm_initialize);

int btbcm_finalize(struct hci_dev *hdev, bool *fw_load_done, bool use_autobaud_mode)
{
        int err;

        /* Re-initialize if necessary */
        if (*fw_load_done) {
                err = btbcm_initialize(hdev, fw_load_done, use_autobaud_mode);
                if (err)
                        return err;
        }

        btbcm_check_bdaddr(hdev);

        hci_set_quirk(hdev, HCI_QUIRK_STRICT_DUPLICATE_FILTER);

        return 0;
}
EXPORT_SYMBOL_GPL(btbcm_finalize);

int btbcm_setup_patchram(struct hci_dev *hdev)
{
        bool fw_load_done = false;
        bool use_autobaud_mode = false;
        int err;

        /* Initialize */
        err = btbcm_initialize(hdev, &fw_load_done, use_autobaud_mode);
        if (err)
                return err;

        /* Re-initialize after loading Patch */
        return btbcm_finalize(hdev, &fw_load_done, use_autobaud_mode);
}
EXPORT_SYMBOL_GPL(btbcm_setup_patchram);

int btbcm_setup_apple(struct hci_dev *hdev)
{
        struct sk_buff *skb;
        int err;

        /* Reset */
        err = btbcm_reset(hdev);
        if (err)
                return err;

        /* Read Verbose Config Version Info */
        skb = btbcm_read_verbose_config(hdev);
        if (!IS_ERR(skb)) {
                bt_dev_info(hdev, "BCM: chip id %u build %4.4u",
                            skb->data[1], get_unaligned_le16(skb->data + 5));
                kfree_skb(skb);
        }

        /* Read USB Product Info */
        skb = btbcm_read_usb_product(hdev);
        if (!IS_ERR(skb)) {
                bt_dev_info(hdev, "BCM: product %4.4x:%4.4x",
                            get_unaligned_le16(skb->data + 1),
                            get_unaligned_le16(skb->data + 3));
                kfree_skb(skb);
        }

        /* Read Controller Features */
        skb = btbcm_read_controller_features(hdev);
        if (!IS_ERR(skb)) {
                bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);
                kfree_skb(skb);
        }

        /* Read Local Name */
        skb = btbcm_read_local_name(hdev);
        if (!IS_ERR(skb)) {
                bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
                kfree_skb(skb);
        }

        hci_set_quirk(hdev, HCI_QUIRK_STRICT_DUPLICATE_FILTER);

        return 0;
}
EXPORT_SYMBOL_GPL(btbcm_setup_apple);

MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION);
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");