mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-06 23:36:43 +07:00
ad750fa142
If the call to request_firmware() fails in btbcm_setup_patchram(), the BCM chip will be operating with its default firmware. In this case, btbcm_setup_patchram() should not return immediately but instead should skip to btbcm_check_bdaddr() and quirk setup. Signed-off-by: Petri Gynther <pgynther@google.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
557 lines
13 KiB
C
557 lines
13 KiB
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_ERR("%s: BCM: Reading device address failed (%d)",
|
|
hdev->name, err);
|
|
return err;
|
|
}
|
|
|
|
if (skb->len != sizeof(*bda)) {
|
|
BT_ERR("%s: BCM: Device address length mismatch", hdev->name);
|
|
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_INFO("%s: BCM: Using default device address (%pMR)",
|
|
hdev->name, &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_ERR("%s: BCM: Change address command failed (%d)",
|
|
hdev->name, 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_ERR("%s: BCM: Download Minidrv command failed (%d)",
|
|
hdev->name, 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_ERR("%s: BCM: Patch is corrupted", hdev->name);
|
|
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_ERR("%s: BCM: Patch command %04x failed (%d)",
|
|
hdev->name, 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_ERR("%s: BCM: Reset failed (%d)", hdev->name, err);
|
|
return err;
|
|
}
|
|
kfree_skb(skb);
|
|
|
|
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_ERR("%s: BCM: Reading local name failed (%ld)",
|
|
hdev->name, PTR_ERR(skb));
|
|
return skb;
|
|
}
|
|
|
|
if (skb->len != sizeof(struct hci_rp_read_local_name)) {
|
|
BT_ERR("%s: BCM: Local name length mismatch", hdev->name);
|
|
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_ERR("%s: BCM: Reading local version info failed (%ld)",
|
|
hdev->name, PTR_ERR(skb));
|
|
return skb;
|
|
}
|
|
|
|
if (skb->len != sizeof(struct hci_rp_read_local_version)) {
|
|
BT_ERR("%s: BCM: Local version length mismatch", hdev->name);
|
|
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_ERR("%s: BCM: Read verbose config info failed (%ld)",
|
|
hdev->name, PTR_ERR(skb));
|
|
return skb;
|
|
}
|
|
|
|
if (skb->len != 7) {
|
|
BT_ERR("%s: BCM: Verbose config length mismatch", hdev->name);
|
|
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_ERR("%s: BCM: Read USB product info failed (%ld)",
|
|
hdev->name, PTR_ERR(skb));
|
|
return skb;
|
|
}
|
|
|
|
if (skb->len != 5) {
|
|
BT_ERR("%s: BCM: USB product length mismatch", hdev->name);
|
|
kfree_skb(skb);
|
|
return ERR_PTR(-EIO);
|
|
}
|
|
|
|
return skb;
|
|
}
|
|
|
|
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 */
|
|
{ }
|
|
};
|
|
|
|
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 Verbose Config Version Info */
|
|
skb = btbcm_read_verbose_config(hdev);
|
|
if (IS_ERR(skb))
|
|
return PTR_ERR(skb);
|
|
|
|
BT_INFO("%s: BCM: chip id %u", hdev->name, skb->data[1]);
|
|
kfree_skb(skb);
|
|
|
|
switch ((rev & 0xf000) >> 12) {
|
|
case 0:
|
|
case 1:
|
|
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_INFO("%s: %s (%3.3u.%3.3u.%3.3u) build %4.4u", hdev->name,
|
|
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_INFO("%s: BCM (%3.3u.%3.3u.%3.3u) build %4.4u", hdev->name,
|
|
(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 Verbose Config Version Info */
|
|
skb = btbcm_read_verbose_config(hdev);
|
|
if (IS_ERR(skb))
|
|
return PTR_ERR(skb);
|
|
|
|
BT_INFO("%s: BCM: chip id %u", hdev->name, skb->data[1]);
|
|
kfree_skb(skb);
|
|
|
|
/* Read Local Name */
|
|
skb = btbcm_read_local_name(hdev);
|
|
if (IS_ERR(skb))
|
|
return PTR_ERR(skb);
|
|
|
|
BT_INFO("%s: %s", hdev->name, (char *)(skb->data + 1));
|
|
kfree_skb(skb);
|
|
|
|
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_INFO("%s: %s (%3.3u.%3.3u.%3.3u) build %4.4u", hdev->name,
|
|
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_INFO("%s: BCM: Patch %s not found", hdev->name, 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_INFO("%s: %s (%3.3u.%3.3u.%3.3u) build %4.4u", hdev->name,
|
|
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_INFO("%s: %s", hdev->name, (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_INFO("%s: BCM: chip id %u build %4.4u", hdev->name,
|
|
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_INFO("%s: BCM: product %4.4x:%4.4x", hdev->name,
|
|
get_unaligned_le16(skb->data + 1),
|
|
get_unaligned_le16(skb->data + 3));
|
|
kfree_skb(skb);
|
|
}
|
|
|
|
/* Read Local Name */
|
|
skb = btbcm_read_local_name(hdev);
|
|
if (!IS_ERR(skb)) {
|
|
BT_INFO("%s: %s", hdev->name, (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");
|