[mirror_ubuntu-bionic-kernel.git] / drivers / bluetooth / btbcm.c

/*
 *
 *  Bluetooth support for Broadcom devices
 *
 *  Copyright (C) 2015  Intel Corporation
 *
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include <linux/module.h>
#include <linux/firmware.h>
#include <asm/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_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}})
#define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}})

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 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.
	 */
	if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) ||
	    !bacmp(&bda->bdaddr, BDADDR_BCM4324B3) ||
	    !bacmp(&bda->bdaddr, BDADDR_BCM4330B1)) {
		bt_dev_info(hdev, "BCM: Using default device address (%pMR)",
			    &bda->bdaddr);
		set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
	}

	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_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 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);

	/* 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 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;
}

static const struct {
	u16 subver;
	const char *name;
} bcm_uart_subver_table[] = {
	{ 0x4103, "BCM4330B1"	},	/* 002.001.003 */
	{ 0x410e, "BCM43341B0"	},	/* 002.001.014 */
	{ 0x4406, "BCM4324B3"	},	/* 002.004.006 */
	{ 0x610c, "BCM4354"	},	/* 003.001.012 */
	{ 0x2209, "BCM43430A1"  },	/* 001.002.009 */
	{ 0x6119, "BCM4345C0"	},	/* 003.001.025 */
	{ 0x230f, "BCM4356A2"	},	/* 001.003.015 */
	{ }
};

int btbcm_initialize(struct hci_dev *hdev, char *fw_name, size_t len)
{
	u16 subver, rev;
	const char *hw_name = NULL;
	struct sk_buff *skb;
	struct hci_rp_read_local_version *ver;
	int i, err;

	/* 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 */
	err = btbcm_read_info(hdev);
	if (err)
		return err;

	switch ((rev & 0xf000) >> 12) {
	case 0:
	case 1:
	case 2:
	case 3:
		for (i = 0; bcm_uart_subver_table[i].name; i++) {
			if (subver == bcm_uart_subver_table[i].subver) {
				hw_name = bcm_uart_subver_table[i].name;
				break;
			}
		}

		snprintf(fw_name, len, "brcm/%s.hcd", hw_name ? : "BCM");
		break;
	default:
		return 0;
	}

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

	return 0;
}
EXPORT_SYMBOL_GPL(btbcm_initialize);

int btbcm_finalize(struct hci_dev *hdev)
{
	struct sk_buff *skb;
	struct hci_rp_read_local_version *ver;
	u16 subver, rev;
	int err;

	/* 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);

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

	btbcm_check_bdaddr(hdev);

	set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);

	return 0;
}
EXPORT_SYMBOL_GPL(btbcm_finalize);

static const struct {
	u16 subver;
	const char *name;
} bcm_usb_subver_table[] = {
	{ 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, "BCM4354A2"	},	/* 001.003.015 */
	{ 0x4106, "BCM4335B0"	},	/* 002.001.006 */
	{ 0x410e, "BCM20702B0"	},	/* 002.001.014 */
	{ 0x6109, "BCM4335C0"	},	/* 003.001.009 */
	{ 0x610c, "BCM4354"	},	/* 003.001.012 */
	{ }
};

int btbcm_setup_patchram(struct hci_dev *hdev)
{
	char fw_name[64];
	const struct firmware *fw;
	u16 subver, rev, pid, vid;
	const char *hw_name = NULL;
	struct sk_buff *skb;
	struct hci_rp_read_local_version *ver;
	int i, err;

	/* 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 */
	err = btbcm_read_info(hdev);
	if (err)
		return err;

	switch ((rev & 0xf000) >> 12) {
	case 0:
	case 3:
		for (i = 0; bcm_uart_subver_table[i].name; i++) {
			if (subver == bcm_uart_subver_table[i].subver) {
				hw_name = bcm_uart_subver_table[i].name;
				break;
			}
		}

		snprintf(fw_name, sizeof(fw_name), "brcm/%s.hcd",
			 hw_name ? : "BCM");
		break;
	case 1:
	case 2:
		/* 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);

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

		snprintf(fw_name, sizeof(fw_name), "brcm/%s-%4.4x-%4.4x.hcd",
			 hw_name ? : "BCM", vid, pid);
		break;
	default:
		return 0;
	}

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

	err = request_firmware(&fw, fw_name, &hdev->dev);
	if (err < 0) {
		bt_dev_info(hdev, "BCM: Patch %s not found", fw_name);
		goto done;
	}

	btbcm_patchram(hdev, fw);

	release_firmware(fw);

	/* 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);

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

	/* 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);

done:
	btbcm_check_bdaddr(hdev);

	set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);

	return 0;
}
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);
	}

	set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);

	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");
Commit	Line	Data
4fba30f0 MH	1	/*
	2	*
	3	* Bluetooth support for Broadcom devices
	4	*
	5	* Copyright (C) 2015 Intel Corporation
	6	*
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or
	11	* (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	21	*
	22	*/
	23
	24	#include <linux/module.h>
1c8ba6d0 MH	25	#include <linux/firmware.h>
1c8ba6d0 MH	26	#include <asm/unaligned.h>
4fba30f0 MH	27
	28	#include <net/bluetooth/bluetooth.h>
	29	#include <net/bluetooth/hci_core.h>
	30
	31	#include "btbcm.h"
	32
	33	#define VERSION "0.1"
	34
	35	#define BDADDR_BCM20702A0 (&(bdaddr_t) {{0x00, 0xa0, 0x02, 0x70, 0x20, 0x00}})
a8f3b941	36	#define BDADDR_BCM4324B3 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb3, 0x24, 0x43}})
4a546ec3	37	#define BDADDR_BCM4330B1 (&(bdaddr_t) {{0x00, 0x00, 0x00, 0xb1, 0x30, 0x43}})
4fba30f0 MH	38
	39	int btbcm_check_bdaddr(struct hci_dev *hdev)
	40	{
	41	struct hci_rp_read_bd_addr *bda;
	42	struct sk_buff *skb;
	43
	44	skb = __hci_cmd_sync(hdev, HCI_OP_READ_BD_ADDR, 0, NULL,
	45	HCI_INIT_TIMEOUT);
	46	if (IS_ERR(skb)) {
	47	int err = PTR_ERR(skb);
2064ee33	48	bt_dev_err(hdev, "BCM: Reading device address failed (%d)", err);
4fba30f0 MH	49	return err;
	50	}
	51
	52	if (skb->len != sizeof(*bda)) {
2064ee33	53	bt_dev_err(hdev, "BCM: Device address length mismatch");
4fba30f0 MH	54	kfree_skb(skb);
	55	return -EIO;
	56	}
	57
	58	bda = (struct hci_rp_read_bd_addr *)skb->data;
4fba30f0	59
a8f3b941 FD	60	/* Check if the address indicates a controller with either an
	61	* invalid or default address. In both cases the device needs
	62	* to be marked as not having a valid address.
	63	*
	64	* The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller
4fba30f0	65	* with no configured address.
a8f3b941 FD	66	*
	67	* The address 43:24:B3:00:00:00 indicates a BCM4324B3 controller
	68	* with waiting for configuration state.
4a546ec3 FD	69	*
	70	* The address 43:30:B1:00:00:00 indicates a BCM4330B1 controller
	71	* with waiting for configuration state.
4fba30f0	72	*/
a8f3b941	73	if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) \|\|
4a546ec3 FD	74	!bacmp(&bda->bdaddr, BDADDR_BCM4324B3) \|\|
4a546ec3 FD	75	!bacmp(&bda->bdaddr, BDADDR_BCM4330B1)) {
2064ee33 MH	76	bt_dev_info(hdev, "BCM: Using default device address (%pMR)",
2064ee33 MH	77	&bda->bdaddr);
4fba30f0 MH	78	set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks);
	79	}
	80
	81	kfree_skb(skb);
	82
	83	return 0;
	84	}
	85	EXPORT_SYMBOL_GPL(btbcm_check_bdaddr);
	86
	87	int btbcm_set_bdaddr(struct hci_dev hdev, const bdaddr_t bdaddr)
	88	{
	89	struct sk_buff *skb;
	90	int err;
	91
	92	skb = __hci_cmd_sync(hdev, 0xfc01, 6, bdaddr, HCI_INIT_TIMEOUT);
	93	if (IS_ERR(skb)) {
	94	err = PTR_ERR(skb);
2064ee33	95	bt_dev_err(hdev, "BCM: Change address command failed (%d)", err);
4fba30f0 MH	96	return err;
	97	}
	98	kfree_skb(skb);
	99
	100	return 0;
	101	}
	102	EXPORT_SYMBOL_GPL(btbcm_set_bdaddr);
	103
18aeb444	104	int btbcm_patchram(struct hci_dev hdev, const struct firmware fw)
50862ee5 MH	105	{
50862ee5 MH	106	const struct hci_command_hdr *cmd;
50862ee5 MH	107	const u8 *fw_ptr;
	108	size_t fw_size;
	109	struct sk_buff *skb;
	110	u16 opcode;
18aeb444	111	int err = 0;
50862ee5 MH	112
	113	/* Start Download */
	114	skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT);
	115	if (IS_ERR(skb)) {
	116	err = PTR_ERR(skb);
2064ee33 MH	117	bt_dev_err(hdev, "BCM: Download Minidrv command failed (%d)",
2064ee33 MH	118	err);
50862ee5 MH	119	goto done;
	120	}
	121	kfree_skb(skb);
	122
	123	/* 50 msec delay after Download Minidrv completes */
	124	msleep(50);
	125
	126	fw_ptr = fw->data;
	127	fw_size = fw->size;
	128
	129	while (fw_size >= sizeof(*cmd)) {
	130	const u8 *cmd_param;
	131
	132	cmd = (struct hci_command_hdr *)fw_ptr;
	133	fw_ptr += sizeof(*cmd);
	134	fw_size -= sizeof(*cmd);
	135
	136	if (fw_size < cmd->plen) {
2064ee33	137	bt_dev_err(hdev, "BCM: Patch is corrupted");
50862ee5 MH	138	err = -EINVAL;
	139	goto done;
	140	}
	141
	142	cmd_param = fw_ptr;
	143	fw_ptr += cmd->plen;
	144	fw_size -= cmd->plen;
	145
	146	opcode = le16_to_cpu(cmd->opcode);
	147
	148	skb = __hci_cmd_sync(hdev, opcode, cmd->plen, cmd_param,
	149	HCI_INIT_TIMEOUT);
	150	if (IS_ERR(skb)) {
	151	err = PTR_ERR(skb);
2064ee33 MH	152	bt_dev_err(hdev, "BCM: Patch command %04x failed (%d)",
2064ee33 MH	153	opcode, err);
50862ee5 MH	154	goto done;
	155	}
	156	kfree_skb(skb);
	157	}
	158
	159	/* 250 msec delay after Launch Ram completes */
	160	msleep(250);
	161
	162	done:
50862ee5 MH	163	return err;
	164	}
	165	EXPORT_SYMBOL(btbcm_patchram);
	166
1c8ba6d0 MH	167	static int btbcm_reset(struct hci_dev *hdev)
	168	{
	169	struct sk_buff *skb;
	170
	171	skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT);
	172	if (IS_ERR(skb)) {
	173	int err = PTR_ERR(skb);
2064ee33	174	bt_dev_err(hdev, "BCM: Reset failed (%d)", err);
1c8ba6d0 MH	175	return err;
	176	}
	177	kfree_skb(skb);
	178
3af3a594 WJS	179	/* 100 msec delay for module to complete reset process */
	180	msleep(100);
	181
1c8ba6d0 MH	182	return 0;
	183	}
	184
9bc63ca0 MH	185	static struct sk_buff btbcm_read_local_name(struct hci_dev hdev)
	186	{
	187	struct sk_buff *skb;
	188
	189	skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_NAME, 0, NULL,
	190	HCI_INIT_TIMEOUT);
	191	if (IS_ERR(skb)) {
2064ee33 MH	192	bt_dev_err(hdev, "BCM: Reading local name failed (%ld)",
2064ee33 MH	193	PTR_ERR(skb));
9bc63ca0 MH	194	return skb;
	195	}
	196
	197	if (skb->len != sizeof(struct hci_rp_read_local_name)) {
2064ee33	198	bt_dev_err(hdev, "BCM: Local name length mismatch");
9bc63ca0 MH	199	kfree_skb(skb);
	200	return ERR_PTR(-EIO);
	201	}
	202
	203	return skb;
	204	}
	205
1c8ba6d0 MH	206	static struct sk_buff btbcm_read_local_version(struct hci_dev hdev)
	207	{
	208	struct sk_buff *skb;
	209
	210	skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL,
	211	HCI_INIT_TIMEOUT);
	212	if (IS_ERR(skb)) {
2064ee33 MH	213	bt_dev_err(hdev, "BCM: Reading local version info failed (%ld)",
2064ee33 MH	214	PTR_ERR(skb));
1c8ba6d0 MH	215	return skb;
	216	}
	217
	218	if (skb->len != sizeof(struct hci_rp_read_local_version)) {
2064ee33	219	bt_dev_err(hdev, "BCM: Local version length mismatch");
1c8ba6d0 MH	220	kfree_skb(skb);
	221	return ERR_PTR(-EIO);
	222	}
	223
	224	return skb;
	225	}
	226
	227	static struct sk_buff btbcm_read_verbose_config(struct hci_dev hdev)
	228	{
	229	struct sk_buff *skb;
	230
	231	skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT);
	232	if (IS_ERR(skb)) {
2064ee33 MH	233	bt_dev_err(hdev, "BCM: Read verbose config info failed (%ld)",
2064ee33 MH	234	PTR_ERR(skb));
1c8ba6d0 MH	235	return skb;
	236	}
	237
	238	if (skb->len != 7) {
2064ee33	239	bt_dev_err(hdev, "BCM: Verbose config length mismatch");
1c8ba6d0 MH	240	kfree_skb(skb);
	241	return ERR_PTR(-EIO);
	242	}
	243
	244	return skb;
	245	}
	246
4284ecbe MH	247	static struct sk_buff btbcm_read_controller_features(struct hci_dev hdev)
	248	{
	249	struct sk_buff *skb;
	250
	251	skb = __hci_cmd_sync(hdev, 0xfc6e, 0, NULL, HCI_INIT_TIMEOUT);
	252	if (IS_ERR(skb)) {
2064ee33 MH	253	bt_dev_err(hdev, "BCM: Read controller features failed (%ld)",
2064ee33 MH	254	PTR_ERR(skb));
4284ecbe MH	255	return skb;
	256	}
	257
	258	if (skb->len != 9) {
2064ee33	259	bt_dev_err(hdev, "BCM: Controller features length mismatch");
4284ecbe MH	260	kfree_skb(skb);
	261	return ERR_PTR(-EIO);
	262	}
	263
	264	return skb;
	265	}
	266
1c8ba6d0 MH	267	static struct sk_buff btbcm_read_usb_product(struct hci_dev hdev)
	268	{
	269	struct sk_buff *skb;
	270
	271	skb = __hci_cmd_sync(hdev, 0xfc5a, 0, NULL, HCI_INIT_TIMEOUT);
	272	if (IS_ERR(skb)) {
2064ee33 MH	273	bt_dev_err(hdev, "BCM: Read USB product info failed (%ld)",
2064ee33 MH	274	PTR_ERR(skb));
1c8ba6d0 MH	275	return skb;
	276	}
	277
	278	if (skb->len != 5) {
2064ee33	279	bt_dev_err(hdev, "BCM: USB product length mismatch");
1c8ba6d0 MH	280	kfree_skb(skb);
	281	return ERR_PTR(-EIO);
	282	}
	283
	284	return skb;
	285	}
	286
e76dc1dd MH	287	static int btbcm_read_info(struct hci_dev *hdev)
	288	{
	289	struct sk_buff *skb;
	290
	291	/* Read Verbose Config Version Info */
	292	skb = btbcm_read_verbose_config(hdev);
	293	if (IS_ERR(skb))
	294	return PTR_ERR(skb);
	295
2064ee33	296	bt_dev_info(hdev, "BCM: chip id %u", skb->data[1]);
e76dc1dd MH	297	kfree_skb(skb);
	298
	299	/* Read Controller Features */
	300	skb = btbcm_read_controller_features(hdev);
	301	if (IS_ERR(skb))
	302	return PTR_ERR(skb);
	303
2064ee33	304	bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);
e76dc1dd MH	305	kfree_skb(skb);
	306
	307	/* Read Local Name */
	308	skb = btbcm_read_local_name(hdev);
	309	if (IS_ERR(skb))
	310	return PTR_ERR(skb);
	311
2064ee33	312	bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
e76dc1dd MH	313	kfree_skb(skb);
	314
	315	return 0;
	316	}
	317
1c8ba6d0 MH	318	static const struct {
	319	u16 subver;
	320	const char *name;
9a0bb57d	321	} bcm_uart_subver_table[] = {
4a546ec3	322	{ 0x4103, "BCM4330B1" }, /* 002.001.003 */
9a0bb57d	323	{ 0x410e, "BCM43341B0" }, /* 002.001.014 */
a8f3b941	324	{ 0x4406, "BCM4324B3" }, /* 002.004.006 */
40db5f0e	325	{ 0x610c, "BCM4354" }, /* 003.001.012 */
feb16722	326	{ 0x2209, "BCM43430A1" }, /* 001.002.009 */
18a39b9a	327	{ 0x6119, "BCM4345C0" }, /* 003.001.025 */
b133e0c4	328	{ 0x230f, "BCM4356A2" }, /* 001.003.015 */
9a0bb57d MH	329	{ }
	330	};
	331
75e167e6 FD	332	int btbcm_initialize(struct hci_dev hdev, char fw_name, size_t len)
	333	{
	334	u16 subver, rev;
	335	const char *hw_name = NULL;
	336	struct sk_buff *skb;
	337	struct hci_rp_read_local_version *ver;
	338	int i, err;
	339
	340	/* Reset */
	341	err = btbcm_reset(hdev);
	342	if (err)
	343	return err;
	344
	345	/* Read Local Version Info */
	346	skb = btbcm_read_local_version(hdev);
	347	if (IS_ERR(skb))
	348	return PTR_ERR(skb);
	349
	350	ver = (struct hci_rp_read_local_version *)skb->data;
	351	rev = le16_to_cpu(ver->hci_rev);
	352	subver = le16_to_cpu(ver->lmp_subver);
	353	kfree_skb(skb);
	354
e76dc1dd MH	355	/* Read controller information */
	356	err = btbcm_read_info(hdev);
	357	if (err)
	358	return err;
75e167e6 FD	359
	360	switch ((rev & 0xf000) >> 12) {
	361	case 0:
40db5f0e	362	case 1:
b133e0c4	363	case 2:
75e167e6 FD	364	case 3:
	365	for (i = 0; bcm_uart_subver_table[i].name; i++) {
	366	if (subver == bcm_uart_subver_table[i].subver) {
	367	hw_name = bcm_uart_subver_table[i].name;
	368	break;
	369	}
	370	}
	371
	372	snprintf(fw_name, len, "brcm/%s.hcd", hw_name ? : "BCM");
	373	break;
	374	default:
	375	return 0;
	376	}
	377
2064ee33 MH	378	bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u",
	379	hw_name ? : "BCM", (subver & 0xe000) >> 13,
	380	(subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
75e167e6 FD	381
	382	return 0;
	383	}
	384	EXPORT_SYMBOL_GPL(btbcm_initialize);
	385
	386	int btbcm_finalize(struct hci_dev *hdev)
	387	{
	388	struct sk_buff *skb;
	389	struct hci_rp_read_local_version *ver;
	390	u16 subver, rev;
	391	int err;
	392
	393	/* Reset */
	394	err = btbcm_reset(hdev);
	395	if (err)
	396	return err;
	397
	398	/* Read Local Version Info */
	399	skb = btbcm_read_local_version(hdev);
	400	if (IS_ERR(skb))
	401	return PTR_ERR(skb);
	402
	403	ver = (struct hci_rp_read_local_version *)skb->data;
	404	rev = le16_to_cpu(ver->hci_rev);
	405	subver = le16_to_cpu(ver->lmp_subver);
	406	kfree_skb(skb);
	407
2064ee33 MH	408	bt_dev_info(hdev, "BCM (%3.3u.%3.3u.%3.3u) build %4.4u",
	409	(subver & 0xe000) >> 13, (subver & 0x1f00) >> 8,
	410	(subver & 0x00ff), rev & 0x0fff);
75e167e6 FD	411
	412	btbcm_check_bdaddr(hdev);
	413
	414	set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
	415
	416	return 0;
	417	}
	418	EXPORT_SYMBOL_GPL(btbcm_finalize);
	419
9a0bb57d MH	420	static const struct {
	421	u16 subver;
	422	const char *name;
	423	} bcm_usb_subver_table[] = {
1c8ba6d0 MH	424	{ 0x210b, "BCM43142A0" }, /* 001.001.011 */
	425	{ 0x2112, "BCM4314A0" }, /* 001.001.018 */
	426	{ 0x2118, "BCM20702A0" }, /* 001.001.024 */
	427	{ 0x2126, "BCM4335A0" }, /* 001.001.038 */
	428	{ 0x220e, "BCM20702A1" }, /* 001.002.014 */
	429	{ 0x230f, "BCM4354A2" }, /* 001.003.015 */
	430	{ 0x4106, "BCM4335B0" }, /* 002.001.006 */
	431	{ 0x410e, "BCM20702B0" }, /* 002.001.014 */
	432	{ 0x6109, "BCM4335C0" }, /* 003.001.009 */
	433	{ 0x610c, "BCM4354" }, /* 003.001.012 */
	434	{ }
	435	};
	436
	437	int btbcm_setup_patchram(struct hci_dev *hdev)
	438	{
1c8ba6d0	439	char fw_name[64];
18aeb444	440	const struct firmware *fw;
50862ee5	441	u16 subver, rev, pid, vid;
1c8ba6d0 MH	442	const char *hw_name = NULL;
	443	struct sk_buff *skb;
	444	struct hci_rp_read_local_version *ver;
	445	int i, err;
	446
	447	/* Reset */
	448	err = btbcm_reset(hdev);
	449	if (err)
	450	return err;
	451
	452	/* Read Local Version Info */
	453	skb = btbcm_read_local_version(hdev);
	454	if (IS_ERR(skb))
	455	return PTR_ERR(skb);
	456
	457	ver = (struct hci_rp_read_local_version *)skb->data;
	458	rev = le16_to_cpu(ver->hci_rev);
	459	subver = le16_to_cpu(ver->lmp_subver);
	460	kfree_skb(skb);
	461
e76dc1dd MH	462	/* Read controller information */
	463	err = btbcm_read_info(hdev);
	464	if (err)
	465	return err;
9bc63ca0	466
9a0bb57d MH	467	switch ((rev & 0xf000) >> 12) {
9a0bb57d MH	468	case 0:
a8f3b941	469	case 3:
9a0bb57d MH	470	for (i = 0; bcm_uart_subver_table[i].name; i++) {
	471	if (subver == bcm_uart_subver_table[i].subver) {
	472	hw_name = bcm_uart_subver_table[i].name;
	473	break;
	474	}
	475	}
1c8ba6d0	476
9a0bb57d MH	477	snprintf(fw_name, sizeof(fw_name), "brcm/%s.hcd",
	478	hw_name ? : "BCM");
	479	break;
	480	case 1:
	481	case 2:
	482	/* Read USB Product Info */
	483	skb = btbcm_read_usb_product(hdev);
	484	if (IS_ERR(skb))
	485	return PTR_ERR(skb);
	486
	487	vid = get_unaligned_le16(skb->data + 1);
	488	pid = get_unaligned_le16(skb->data + 3);
	489	kfree_skb(skb);
1c8ba6d0	490
9a0bb57d MH	491	for (i = 0; bcm_usb_subver_table[i].name; i++) {
	492	if (subver == bcm_usb_subver_table[i].subver) {
	493	hw_name = bcm_usb_subver_table[i].name;
	494	break;
	495	}
1c8ba6d0	496	}
9a0bb57d MH	497
	498	snprintf(fw_name, sizeof(fw_name), "brcm/%s-%4.4x-%4.4x.hcd",
	499	hw_name ? : "BCM", vid, pid);
	500	break;
	501	default:
	502	return 0;
1c8ba6d0 MH	503	}
1c8ba6d0 MH	504
2064ee33 MH	505	bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u",
	506	hw_name ? : "BCM", (subver & 0xe000) >> 13,
	507	(subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
1c8ba6d0	508
18aeb444 FD	509	err = request_firmware(&fw, fw_name, &hdev->dev);
18aeb444 FD	510	if (err < 0) {
2064ee33	511	bt_dev_info(hdev, "BCM: Patch %s not found", fw_name);
ad750fa1	512	goto done;
18aeb444 FD	513	}
	514
	515	btbcm_patchram(hdev, fw);
	516
	517	release_firmware(fw);
1c8ba6d0	518
1c8ba6d0 MH	519	/* Reset */
	520	err = btbcm_reset(hdev);
	521	if (err)
50862ee5	522	return err;
1c8ba6d0 MH	523
	524	/* Read Local Version Info */
	525	skb = btbcm_read_local_version(hdev);
50862ee5 MH	526	if (IS_ERR(skb))
50862ee5 MH	527	return PTR_ERR(skb);
1c8ba6d0 MH	528
	529	ver = (struct hci_rp_read_local_version *)skb->data;
	530	rev = le16_to_cpu(ver->hci_rev);
	531	subver = le16_to_cpu(ver->lmp_subver);
	532	kfree_skb(skb);
	533
2064ee33 MH	534	bt_dev_info(hdev, "%s (%3.3u.%3.3u.%3.3u) build %4.4u",
	535	hw_name ? : "BCM", (subver & 0xe000) >> 13,
	536	(subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff);
1c8ba6d0	537
9bc63ca0 MH	538	/* Read Local Name */
	539	skb = btbcm_read_local_name(hdev);
	540	if (IS_ERR(skb))
	541	return PTR_ERR(skb);
	542
2064ee33	543	bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
9bc63ca0 MH	544	kfree_skb(skb);
9bc63ca0 MH	545
ad750fa1	546	done:
1c8ba6d0 MH	547	btbcm_check_bdaddr(hdev);
1c8ba6d0 MH	548
941521e2 MH	549	set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
941521e2 MH	550
50862ee5	551	return 0;
1c8ba6d0 MH	552	}
	553	EXPORT_SYMBOL_GPL(btbcm_setup_patchram);
	554
	555	int btbcm_setup_apple(struct hci_dev *hdev)
	556	{
	557	struct sk_buff *skb;
b224d3ff MH	558	int err;
	559
	560	/* Reset */
	561	err = btbcm_reset(hdev);
	562	if (err)
	563	return err;
1c8ba6d0 MH	564
	565	/* Read Verbose Config Version Info */
	566	skb = btbcm_read_verbose_config(hdev);
7bee8b08	567	if (!IS_ERR(skb)) {
2064ee33 MH	568	bt_dev_info(hdev, "BCM: chip id %u build %4.4u",
2064ee33 MH	569	skb->data[1], get_unaligned_le16(skb->data + 5));
7bee8b08 CM	570	kfree_skb(skb);
7bee8b08 CM	571	}
1c8ba6d0	572
34cea41e MH	573	/* Read USB Product Info */
	574	skb = btbcm_read_usb_product(hdev);
	575	if (!IS_ERR(skb)) {
2064ee33 MH	576	bt_dev_info(hdev, "BCM: product %4.4x:%4.4x",
	577	get_unaligned_le16(skb->data + 1),
	578	get_unaligned_le16(skb->data + 3));
34cea41e MH	579	kfree_skb(skb);
	580	}
	581
4284ecbe MH	582	/* Read Controller Features */
	583	skb = btbcm_read_controller_features(hdev);
	584	if (!IS_ERR(skb)) {
2064ee33	585	bt_dev_info(hdev, "BCM: features 0x%2.2x", skb->data[1]);
4284ecbe MH	586	kfree_skb(skb);
	587	}
	588
9bc63ca0 MH	589	/* Read Local Name */
	590	skb = btbcm_read_local_name(hdev);
	591	if (!IS_ERR(skb)) {
2064ee33	592	bt_dev_info(hdev, "%s", (char *)(skb->data + 1));
9bc63ca0 MH	593	kfree_skb(skb);
	594	}
	595
941521e2 MH	596	set_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks);
941521e2 MH	597
1c8ba6d0 MH	598	return 0;
	599	}
	600	EXPORT_SYMBOL_GPL(btbcm_setup_apple);
	601
4fba30f0 MH	602	MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
	603	MODULE_DESCRIPTION("Bluetooth support for Broadcom devices ver " VERSION);
	604	MODULE_VERSION(VERSION);
	605	MODULE_LICENSE("GPL");