diff options
Diffstat (limited to 'drivers/bluetooth')
-rw-r--r-- | drivers/bluetooth/Kconfig | 15 | ||||
-rw-r--r-- | drivers/bluetooth/Makefile | 1 | ||||
-rw-r--r-- | drivers/bluetooth/ath3k.c | 6 | ||||
-rw-r--r-- | drivers/bluetooth/bt3c_cs.c | 3 | ||||
-rw-r--r-- | drivers/bluetooth/btbcm.c | 138 | ||||
-rw-r--r-- | drivers/bluetooth/btbcm.h | 61 | ||||
-rw-r--r-- | drivers/bluetooth/btintel.c | 6 | ||||
-rw-r--r-- | drivers/bluetooth/btmrvl_sdio.c | 2 | ||||
-rw-r--r-- | drivers/bluetooth/btrtl.c | 390 | ||||
-rw-r--r-- | drivers/bluetooth/btrtl.h | 52 | ||||
-rw-r--r-- | drivers/bluetooth/btusb.c | 572 | ||||
-rw-r--r-- | drivers/bluetooth/btwilink.c | 2 | ||||
-rw-r--r-- | drivers/bluetooth/hci_ath.c | 1 | ||||
-rw-r--r-- | drivers/bluetooth/hci_bcm.c | 107 | ||||
-rw-r--r-- | drivers/bluetooth/hci_bcsp.c | 20 | ||||
-rw-r--r-- | drivers/bluetooth/hci_h4.c | 1 | ||||
-rw-r--r-- | drivers/bluetooth/hci_ldisc.c | 123 | ||||
-rw-r--r-- | drivers/bluetooth/hci_uart.h | 11 | ||||
-rw-r--r-- | drivers/bluetooth/hci_vhci.c | 2 |
19 files changed, 1007 insertions, 506 deletions
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig index ed5c2738bea2..2e777071e1dc 100644 --- a/drivers/bluetooth/Kconfig +++ b/drivers/bluetooth/Kconfig @@ -9,6 +9,10 @@ config BT_BCM tristate select FW_LOADER +config BT_RTL + tristate + select FW_LOADER + config BT_HCIBTUSB tristate "HCI USB driver" depends on USB @@ -32,6 +36,17 @@ config BT_HCIBTUSB_BCM Say Y here to compile support for Broadcom protocol. +config BT_HCIBTUSB_RTL + bool "Realtek protocol support" + depends on BT_HCIBTUSB + select BT_RTL + default y + help + The Realtek protocol support enables firmware and configuration + download support for Realtek Bluetooth controllers. + + Say Y here to compile support for Realtek protocol. + config BT_HCIBTSDIO tristate "HCI SDIO driver" depends on MMC diff --git a/drivers/bluetooth/Makefile b/drivers/bluetooth/Makefile index dd0d9c40b999..f40e194e7080 100644 --- a/drivers/bluetooth/Makefile +++ b/drivers/bluetooth/Makefile @@ -21,6 +21,7 @@ obj-$(CONFIG_BT_MRVL) += btmrvl.o obj-$(CONFIG_BT_MRVL_SDIO) += btmrvl_sdio.o obj-$(CONFIG_BT_WILINK) += btwilink.o obj-$(CONFIG_BT_BCM) += btbcm.o +obj-$(CONFIG_BT_RTL) += btrtl.o btmrvl-y := btmrvl_main.o btmrvl-$(CONFIG_DEBUG_FS) += btmrvl_debugfs.o diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index 8c81af6dbe06..e527a3e13939 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -80,6 +80,7 @@ static const struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x0489, 0xe057) }, { USB_DEVICE(0x0489, 0xe056) }, { USB_DEVICE(0x0489, 0xe05f) }, + { USB_DEVICE(0x0489, 0xe076) }, { USB_DEVICE(0x0489, 0xe078) }, { USB_DEVICE(0x04c5, 0x1330) }, { USB_DEVICE(0x04CA, 0x3004) }, @@ -88,6 +89,7 @@ static const struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x04CA, 0x3007) }, { USB_DEVICE(0x04CA, 0x3008) }, { USB_DEVICE(0x04CA, 0x300b) }, + { USB_DEVICE(0x04CA, 0x300d) }, { USB_DEVICE(0x04CA, 0x300f) }, { USB_DEVICE(0x04CA, 0x3010) }, { USB_DEVICE(0x0930, 0x0219) }, @@ -113,6 +115,7 @@ static const struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x13d3, 0x3408) }, { USB_DEVICE(0x13d3, 0x3423) }, { USB_DEVICE(0x13d3, 0x3432) }, + { USB_DEVICE(0x13d3, 0x3474) }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xE02C) }, @@ -137,6 +140,7 @@ static const struct usb_device_id ath3k_blist_tbl[] = { { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, @@ -145,6 +149,7 @@ static const struct usb_device_id ath3k_blist_tbl[] = { { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, @@ -170,6 +175,7 @@ static const struct usb_device_id ath3k_blist_tbl[] = { { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU22 with sflash firmware */ { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 }, diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c index 6de97b3871b0..7aab65427d38 100644 --- a/drivers/bluetooth/bt3c_cs.c +++ b/drivers/bluetooth/bt3c_cs.c @@ -202,9 +202,8 @@ static void bt3c_write_wakeup(struct bt3c_info *info) /* Send frame */ len = bt3c_write(iobase, 256, skb->data, skb->len); - if (len != skb->len) { + if (len != skb->len) BT_ERR("Very strange"); - } kfree_skb(skb); diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c index 4bba86677adc..1e1a4323a71f 100644 --- a/drivers/bluetooth/btbcm.c +++ b/drivers/bluetooth/btbcm.c @@ -33,6 +33,7 @@ #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}}) int btbcm_check_bdaddr(struct hci_dev *hdev) { @@ -55,17 +56,19 @@ int btbcm_check_bdaddr(struct hci_dev *hdev) } bda = (struct hci_rp_read_bd_addr *)skb->data; - if (bda->status) { - BT_ERR("%s: BCM: Device address result failed (%02x)", - hdev->name, bda->status); - kfree_skb(skb); - return -bt_to_errno(bda->status); - } - /* The address 00:20:70:02:A0:00 indicates a BCM20702A0 controller + /* 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. */ - if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0)) { + if (!bacmp(&bda->bdaddr, BDADDR_BCM20702A0) || + !bacmp(&bda->bdaddr, BDADDR_BCM4324B3)) { BT_INFO("%s: BCM: Using default device address (%pMR)", hdev->name, &bda->bdaddr); set_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks); @@ -95,21 +98,14 @@ int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) } EXPORT_SYMBOL_GPL(btbcm_set_bdaddr); -int btbcm_patchram(struct hci_dev *hdev, const char *firmware) +int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw) { const struct hci_command_hdr *cmd; - const struct firmware *fw; const u8 *fw_ptr; size_t fw_size; struct sk_buff *skb; u16 opcode; - int err; - - err = request_firmware(&fw, firmware, &hdev->dev); - if (err < 0) { - BT_INFO("%s: BCM: Patch %s not found", hdev->name, firmware); - return err; - } + int err = 0; /* Start Download */ skb = __hci_cmd_sync(hdev, 0xfc2e, 0, NULL, HCI_INIT_TIMEOUT); @@ -135,8 +131,7 @@ int btbcm_patchram(struct hci_dev *hdev, const char *firmware) fw_size -= sizeof(*cmd); if (fw_size < cmd->plen) { - BT_ERR("%s: BCM: Patch %s is corrupted", hdev->name, - firmware); + BT_ERR("%s: BCM: Patch is corrupted", hdev->name); err = -EINVAL; goto done; } @@ -162,7 +157,6 @@ int btbcm_patchram(struct hci_dev *hdev, const char *firmware) msleep(250); done: - release_firmware(fw); return err; } EXPORT_SYMBOL(btbcm_patchram); @@ -248,9 +242,101 @@ static const struct { const char *name; } bcm_uart_subver_table[] = { { 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 & 0x7000) >> 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 & 0x7000) >> 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; @@ -271,6 +357,7 @@ static const struct { 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; @@ -302,6 +389,7 @@ int btbcm_setup_patchram(struct hci_dev *hdev) 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; @@ -341,9 +429,15 @@ int btbcm_setup_patchram(struct hci_dev *hdev) hw_name ? : "BCM", (subver & 0x7000) >> 13, (subver & 0x1f00) >> 8, (subver & 0x00ff), rev & 0x0fff); - err = btbcm_patchram(hdev, fw_name); - if (err == -ENOENT) + err = request_firmware(&fw, fw_name, &hdev->dev); + if (err < 0) { + BT_INFO("%s: BCM: Patch %s not found", hdev->name, fw_name); return 0; + } + + btbcm_patchram(hdev, fw); + + release_firmware(fw); /* Reset */ err = btbcm_reset(hdev); diff --git a/drivers/bluetooth/btbcm.h b/drivers/bluetooth/btbcm.h index eb6ab5f9483d..d9e6b41658e5 100644 --- a/drivers/bluetooth/btbcm.h +++ b/drivers/bluetooth/btbcm.h @@ -21,15 +21,61 @@ * */ +#define BCM_UART_CLOCK_48MHZ 0x01 +#define BCM_UART_CLOCK_24MHZ 0x02 + +struct bcm_update_uart_baud_rate { + __le16 zero; + __le32 baud_rate; +} __packed; + +struct bcm_write_uart_clock_setting { + __u8 type; +} __packed; + +struct bcm_set_sleep_mode { + __u8 sleep_mode; + __u8 idle_host; + __u8 idle_dev; + __u8 bt_wake_active; + __u8 host_wake_active; + __u8 allow_host_sleep; + __u8 combine_modes; + __u8 tristate_control; + __u8 usb_auto_sleep; + __u8 usb_resume_timeout; + __u8 pulsed_host_wake; + __u8 break_to_host; +} __packed; + +struct bcm_set_pcm_int_params { + __u8 routing; + __u8 rate; + __u8 frame_sync; + __u8 sync_mode; + __u8 clock_mode; +} __packed; + +struct bcm_set_pcm_format_params { + __u8 lsb_first; + __u8 fill_value; + __u8 fill_method; + __u8 fill_num; + __u8 right_justify; +} __packed; + #if IS_ENABLED(CONFIG_BT_BCM) int btbcm_check_bdaddr(struct hci_dev *hdev); int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr); -int btbcm_patchram(struct hci_dev *hdev, const char *firmware); +int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw); int btbcm_setup_patchram(struct hci_dev *hdev); int btbcm_setup_apple(struct hci_dev *hdev); +int btbcm_initialize(struct hci_dev *hdev, char *fw_name, size_t len); +int btbcm_finalize(struct hci_dev *hdev); + #else static inline int btbcm_check_bdaddr(struct hci_dev *hdev) @@ -42,7 +88,7 @@ static inline int btbcm_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr) return -EOPNOTSUPP; } -static inline int btbcm_patchram(struct hci_dev *hdev, const char *firmware) +static inline int btbcm_patchram(struct hci_dev *hdev, const struct firmware *fw) { return -EOPNOTSUPP; } @@ -57,4 +103,15 @@ static inline int btbcm_setup_apple(struct hci_dev *hdev) return 0; } +static inline int btbcm_initialize(struct hci_dev *hdev, char *fw_name, + size_t len) +{ + return 0; +} + +static inline int btbcm_finalize(struct hci_dev *hdev) +{ + return 0; +} + #endif diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index 2d43d4279b00..828f2f8d1568 100644 --- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -53,12 +53,6 @@ int btintel_check_bdaddr(struct hci_dev *hdev) } bda = (struct hci_rp_read_bd_addr *)skb->data; - if (bda->status) { - BT_ERR("%s: Intel device address result failed (%02x)", - hdev->name, bda->status); - kfree_skb(skb); - return -bt_to_errno(bda->status); - } /* For some Intel based controllers, the default Bluetooth device * address 00:03:19:9E:8B:00 can be found. These controllers are diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c index 01d6da577eeb..b9a811900f6a 100644 --- a/drivers/bluetooth/btmrvl_sdio.c +++ b/drivers/bluetooth/btmrvl_sdio.c @@ -1217,7 +1217,7 @@ static void btmrvl_sdio_dump_firmware(struct btmrvl_private *priv) unsigned int reg, reg_start, reg_end; enum rdwr_status stat; u8 *dbg_ptr, *end_ptr, *fw_dump_data, *fw_dump_ptr; - u8 dump_num, idx, i, read_reg, doneflag = 0; + u8 dump_num = 0, idx, i, read_reg, doneflag = 0; u32 memory_size, fw_dump_len = 0; /* dump sdio register first */ diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c new file mode 100644 index 000000000000..84288938f7f2 --- /dev/null +++ b/drivers/bluetooth/btrtl.c @@ -0,0 +1,390 @@ +/* + * Bluetooth support for Realtek devices + * + * Copyright (C) 2015 Endless Mobile, Inc. + * + * 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. + * + */ + +#include <linux/module.h> +#include <linux/firmware.h> +#include <asm/unaligned.h> +#include <linux/usb.h> + +#include <net/bluetooth/bluetooth.h> +#include <net/bluetooth/hci_core.h> + +#include "btrtl.h" + +#define VERSION "0.1" + +#define RTL_EPATCH_SIGNATURE "Realtech" +#define RTL_ROM_LMP_3499 0x3499 +#define RTL_ROM_LMP_8723A 0x1200 +#define RTL_ROM_LMP_8723B 0x8723 +#define RTL_ROM_LMP_8821A 0x8821 +#define RTL_ROM_LMP_8761A 0x8761 + +static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version) +{ + struct rtl_rom_version_evt *rom_version; + struct sk_buff *skb; + + /* Read RTL ROM version command */ + skb = __hci_cmd_sync(hdev, 0xfc6d, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + BT_ERR("%s: Read ROM version failed (%ld)", + hdev->name, PTR_ERR(skb)); + return PTR_ERR(skb); + } + + if (skb->len != sizeof(*rom_version)) { + BT_ERR("%s: RTL version event length mismatch", hdev->name); + kfree_skb(skb); + return -EIO; + } + + rom_version = (struct rtl_rom_version_evt *)skb->data; + BT_INFO("%s: rom_version status=%x version=%x", + hdev->name, rom_version->status, rom_version->version); + + *version = rom_version->version; + + kfree_skb(skb); + return 0; +} + +static int rtl8723b_parse_firmware(struct hci_dev *hdev, u16 lmp_subver, + const struct firmware *fw, + unsigned char **_buf) +{ + const u8 extension_sig[] = { 0x51, 0x04, 0xfd, 0x77 }; + struct rtl_epatch_header *epatch_info; + unsigned char *buf; + int i, ret, len; + size_t min_size; + u8 opcode, length, data, rom_version = 0; + int project_id = -1; + const unsigned char *fwptr, *chip_id_base; + const unsigned char *patch_length_base, *patch_offset_base; + u32 patch_offset = 0; + u16 patch_length, num_patches; + const u16 project_id_to_lmp_subver[] = { + RTL_ROM_LMP_8723A, + RTL_ROM_LMP_8723B, + RTL_ROM_LMP_8821A, + RTL_ROM_LMP_8761A + }; + + ret = rtl_read_rom_version(hdev, &rom_version); + if (ret) + return ret; + + min_size = sizeof(struct rtl_epatch_header) + sizeof(extension_sig) + 3; + if (fw->size < min_size) + return -EINVAL; + + fwptr = fw->data + fw->size - sizeof(extension_sig); + if (memcmp(fwptr, extension_sig, sizeof(extension_sig)) != 0) { + BT_ERR("%s: extension section signature mismatch", hdev->name); + return -EINVAL; + } + + /* Loop from the end of the firmware parsing instructions, until + * we find an instruction that identifies the "project ID" for the + * hardware supported by this firwmare file. + * Once we have that, we double-check that that project_id is suitable + * for the hardware we are working with. + */ + while (fwptr >= fw->data + (sizeof(struct rtl_epatch_header) + 3)) { + opcode = *--fwptr; + length = *--fwptr; + data = *--fwptr; + + BT_DBG("check op=%x len=%x data=%x", opcode, length, data); + + if (opcode == 0xff) /* EOF */ + break; + + if (length == 0) { + BT_ERR("%s: found instruction with length 0", + hdev->name); + return -EINVAL; + } + + if (opcode == 0 && length == 1) { + project_id = data; + break; + } + + fwptr -= length; + } + + if (project_id < 0) { + BT_ERR("%s: failed to find version instruction", hdev->name); + return -EINVAL; + } + + if (project_id >= ARRAY_SIZE(project_id_to_lmp_subver)) { + BT_ERR("%s: unknown project id %d", hdev->name, project_id); + return -EINVAL; + } + + if (lmp_subver != project_id_to_lmp_subver[project_id]) { + BT_ERR("%s: firmware is for %x but this is a %x", hdev->name, + project_id_to_lmp_subver[project_id], lmp_subver); + return -EINVAL; + } + + epatch_info = (struct rtl_epatch_header *)fw->data; + if (memcmp(epatch_info->signature, RTL_EPATCH_SIGNATURE, 8) != 0) { + BT_ERR("%s: bad EPATCH signature", hdev->name); + return -EINVAL; + } + + num_patches = le16_to_cpu(epatch_info->num_patches); + BT_DBG("fw_version=%x, num_patches=%d", + le32_to_cpu(epatch_info->fw_version), num_patches); + + /* After the rtl_epatch_header there is a funky patch metadata section. + * Assuming 2 patches, the layout is: + * ChipID1 ChipID2 PatchLength1 PatchLength2 PatchOffset1 PatchOffset2 + * + * Find the right patch for this chip. + */ + min_size += 8 * num_patches; + if (fw->size < min_size) + return -EINVAL; + + chip_id_base = fw->data + sizeof(struct rtl_epatch_header); + patch_length_base = chip_id_base + (sizeof(u16) * num_patches); + patch_offset_base = patch_length_base + (sizeof(u16) * num_patches); + for (i = 0; i < num_patches; i++) { + u16 chip_id = get_unaligned_le16(chip_id_base + + (i * sizeof(u16))); + if (chip_id == rom_version + 1) { + patch_length = get_unaligned_le16(patch_length_base + + (i * sizeof(u16))); + patch_offset = get_unaligned_le32(patch_offset_base + + (i * sizeof(u32))); + break; + } + } + + if (!patch_offset) { + BT_ERR("%s: didn't find patch for chip id %d", + hdev->name, rom_version); + return -EINVAL; + } + + BT_DBG("length=%x offset=%x index %d", patch_length, patch_offset, i); + min_size = patch_offset + patch_length; + if (fw->size < min_size) + return -EINVAL; + + /* Copy the firmware into a new buffer and write the version at + * the end. + */ + len = patch_length; + buf = kmemdup(fw->data + patch_offset, patch_length, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + memcpy(buf + patch_length - 4, &epatch_info->fw_version, 4); + + *_buf = buf; + return len; +} + +static int rtl_download_firmware(struct hci_dev *hdev, + const unsigned char *data, int fw_len) +{ + struct rtl_download_cmd *dl_cmd; + int frag_num = fw_len / RTL_FRAG_LEN + 1; + int frag_len = RTL_FRAG_LEN; + int ret = 0; + int i; + + dl_cmd = kmalloc(sizeof(struct rtl_download_cmd), GFP_KERNEL); + if (!dl_cmd) + return -ENOMEM; + + for (i = 0; i < frag_num; i++) { + struct sk_buff *skb; + + BT_DBG("download fw (%d/%d)", i, frag_num); + + dl_cmd->index = i; + if (i == (frag_num - 1)) { + dl_cmd->index |= 0x80; /* data end */ + frag_len = fw_len % RTL_FRAG_LEN; + } + memcpy(dl_cmd->data, data, frag_len); + + /* Send download command */ + skb = __hci_cmd_sync(hdev, 0xfc20, frag_len + 1, dl_cmd, + HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + BT_ERR("%s: download fw command failed (%ld)", + hdev->name, PTR_ERR(skb)); + ret = -PTR_ERR(skb); + goto out; + } + + if (skb->len != sizeof(struct rtl_download_response)) { + BT_ERR("%s: download fw event length mismatch", + hdev->name); + kfree_skb(skb); + ret = -EIO; + goto out; + } + + kfree_skb(skb); + data += RTL_FRAG_LEN; + } + +out: + kfree(dl_cmd); + return ret; +} + +static int btrtl_setup_rtl8723a(struct hci_dev *hdev) +{ + const struct firmware *fw; + int ret; + + BT_INFO("%s: rtl: loading rtl_bt/rtl8723a_fw.bin", hdev->name); + ret = request_firmware(&fw, "rtl_bt/rtl8723a_fw.bin", &hdev->dev); + if (ret < 0) { + BT_ERR("%s: Failed to load rtl_bt/rtl8723a_fw.bin", hdev->name); + return ret; + } + + if (fw->size < 8) { + ret = -EINVAL; + goto out; + } + + /* Check that the firmware doesn't have the epatch signature + * (which is only for RTL8723B and newer). + */ + if (!memcmp(fw->data, RTL_EPATCH_SIGNATURE, 8)) { + BT_ERR("%s: unexpected EPATCH signature!", hdev->name); + ret = -EINVAL; + goto out; + } + + ret = rtl_download_firmware(hdev, fw->data, fw->size); + +out: + release_firmware(fw); + return ret; +} + +static int btrtl_setup_rtl8723b(struct hci_dev *hdev, u16 lmp_subver, + const char *fw_name) +{ + unsigned char *fw_data = NULL; + const struct firmware *fw; + int ret; + + BT_INFO("%s: rtl: loading %s", hdev->name, fw_name); + ret = request_firmware(&fw, fw_name, &hdev->dev); + if (ret < 0) { + BT_ERR("%s: Failed to load %s", hdev->name, fw_name); + return ret; + } + + ret = rtl8723b_parse_firmware(hdev, lmp_subver, fw, &fw_data); + if (ret < 0) + goto out; + + ret = rtl_download_firmware(hdev, fw_data, ret); + kfree(fw_data); + if (ret < 0) + goto out; + +out: + release_firmware(fw); + return ret; +} + +static struct sk_buff *btrtl_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: HCI_OP_READ_LOCAL_VERSION failed (%ld)", + hdev->name, PTR_ERR(skb)); + return skb; + } + + if (skb->len != sizeof(struct hci_rp_read_local_version)) { + BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch", + hdev->name); + kfree_skb(skb); + return ERR_PTR(-EIO); + } + + return skb; +} + +int btrtl_setup_realtek(struct hci_dev *hdev) +{ + struct sk_buff *skb; + struct hci_rp_read_local_version *resp; + u16 lmp_subver; + + skb = btrtl_read_local_version(hdev); + if (IS_ERR(skb)) + return -PTR_ERR(skb); + + resp = (struct hci_rp_read_local_version *)skb->data; + BT_INFO("%s: rtl: examining hci_ver=%02x hci_rev=%04x lmp_ver=%02x " + "lmp_subver=%04x", hdev->name, resp->hci_ver, resp->hci_rev, + resp->lmp_ver, resp->lmp_subver); + + lmp_subver = le16_to_cpu(resp->lmp_subver); + kfree_skb(skb); + + /* Match a set of subver values that correspond to stock firmware, + * which is not compatible with standard btusb. + * If matched, upload an alternative firmware that does conform to + * standard btusb. Once that firmware is uploaded, the subver changes + * to a different value. + */ + switch (lmp_subver) { + case RTL_ROM_LMP_8723A: + case RTL_ROM_LMP_3499: + return btrtl_setup_rtl8723a(hdev); + case RTL_ROM_LMP_8723B: + return btrtl_setup_rtl8723b(hdev, lmp_subver, + "rtl_bt/rtl8723b_fw.bin"); + case RTL_ROM_LMP_8821A: + return btrtl_setup_rtl8723b(hdev, lmp_subver, + "rtl_bt/rtl8821a_fw.bin"); + case RTL_ROM_LMP_8761A: + return btrtl_setup_rtl8723b(hdev, lmp_subver, + "rtl_bt/rtl8761a_fw.bin"); + default: + BT_INFO("rtl: assuming no firmware upload needed."); + return 0; + } +} +EXPORT_SYMBOL_GPL(btrtl_setup_realtek); + +MODULE_AUTHOR("Daniel Drake <drake@endlessm.com>"); +MODULE_DESCRIPTION("Bluetooth support for Realtek devices ver " VERSION); +MODULE_VERSION(VERSION); +MODULE_LICENSE("GPL"); diff --git a/drivers/bluetooth/btrtl.h b/drivers/bluetooth/btrtl.h new file mode 100644 index 000000000000..38ffe4890cd1 --- /dev/null +++ b/drivers/bluetooth/btrtl.h @@ -0,0 +1,52 @@ +/* + * Bluetooth support for Realtek devices + * + * Copyright (C) 2015 Endless Mobile, Inc. + * + * 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. + * + */ + +#define RTL_FRAG_LEN 252 + +struct rtl_download_cmd { + __u8 index; + __u8 data[RTL_FRAG_LEN]; +} __packed; + +struct rtl_download_response { + __u8 status; + __u8 index; +} __packed; + +struct rtl_rom_version_evt { + __u8 status; + __u8 version; +} __packed; + +struct rtl_epatch_header { + __u8 signature[8]; + __le32 fw_version; + __le16 num_patches; +} __packed; + +#if IS_ENABLED(CONFIG_BT_RTL) + +int btrtl_setup_realtek(struct hci_dev *hdev); + +#else + +static inline int btrtl_setup_realtek(struct hci_dev *hdev) +{ + return -EOPNOTSUPP; +} + +#endif diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index 3c10d4dfe9a7..b4cf8d9c9dac 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -31,13 +31,14 @@ #include "btintel.h" #include "btbcm.h" +#include "btrtl.h" #define VERSION "0.8" static bool disable_scofix; static bool force_scofix; -static bool reset = 1; +static bool reset = true; static struct usb_driver btusb_driver; @@ -178,6 +179,7 @@ static const struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, @@ -186,6 +188,7 @@ static const struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, @@ -211,6 +214,7 @@ static const struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, @@ -265,7 +269,7 @@ static const struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x0e5e, 0x6622), .driver_info = BTUSB_BROKEN_ISOC }, /* Roper Class 1 Bluetooth Dongle (Silicon Wave based) */ - { USB_DEVICE(0x1300, 0x0001), .driver_info = BTUSB_SWAVE }, + { USB_DEVICE(0x1310, 0x0001), .driver_info = BTUSB_SWAVE }, /* Digianswer devices */ { USB_DEVICE(0x08fd, 0x0001), .driver_info = BTUSB_DIGIANSWER }, @@ -330,6 +334,7 @@ static const struct usb_device_id blacklist_table[] = { #define BTUSB_FIRMWARE_LOADED 7 #define BTUSB_FIRMWARE_FAILED 8 #define BTUSB_BOOTING 9 +#define BTUSB_RESET_RESUME 10 struct btusb_data { struct hci_dev *hdev; @@ -1298,28 +1303,6 @@ static void btusb_waker(struct work_struct *work) usb_autopm_put_interface(data->intf); } -static struct sk_buff *btusb_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: HCI_OP_READ_LOCAL_VERSION failed (%ld)", - hdev->name, PTR_ERR(skb)); - return skb; - } - - if (skb->len != sizeof(struct hci_rp_read_local_version)) { - BT_ERR("%s: HCI_OP_READ_LOCAL_VERSION event length mismatch", - hdev->name); - kfree_skb(skb); - return ERR_PTR(-EIO); - } - - return skb; -} - static int btusb_setup_bcm92035(struct hci_dev *hdev) { struct sk_buff *skb; @@ -1340,408 +1323,40 @@ static int btusb_setup_csr(struct hci_dev *hdev) { struct hci_rp_read_local_version *rp; struct sk_buff *skb; - int ret; BT_DBG("%s", hdev->name); - skb = btusb_read_local_version(hdev); - if (IS_ERR(skb)) - return -PTR_ERR(skb); - - rp = (struct hci_rp_read_local_version *)skb->data; - - if (!rp->status) { - if (le16_to_cpu(rp->manufacturer) != 10) { - /* Clear the reset quirk since this is not an actual - * early Bluetooth 1.1 device from CSR. - */ - clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); - - /* These fake CSR controllers have all a broken - * stored link key handling and so just disable it. - */ - set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, - &hdev->quirks); - } - } - - ret = -bt_to_errno(rp->status); - - kfree_skb(skb); - - return ret; -} - -#define RTL_FRAG_LEN 252 - -struct rtl_download_cmd { - __u8 index; - __u8 data[RTL_FRAG_LEN]; -} __packed; - -struct rtl_download_response { - __u8 status; - __u8 index; -} __packed; - -struct rtl_rom_version_evt { - __u8 status; - __u8 version; -} __packed; - -struct rtl_epatch_header { - __u8 signature[8]; - __le32 fw_version; - __le16 num_patches; -} __packed; - -#define RTL_EPATCH_SIGNATURE "Realtech" -#define RTL_ROM_LMP_3499 0x3499 -#define RTL_ROM_LMP_8723A 0x1200 -#define RTL_ROM_LMP_8723B 0x8723 -#define RTL_ROM_LMP_8821A 0x8821 -#define RTL_ROM_LMP_8761A 0x8761 - -static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version) -{ - struct rtl_rom_version_evt *rom_version; - struct sk_buff *skb; - int ret; - - /* Read RTL ROM version command */ - skb = __hci_cmd_sync(hdev, 0xfc6d, 0, NULL, HCI_INIT_TIMEOUT); + skb = __hci_cmd_sync(hdev, HCI_OP_READ_LOCAL_VERSION, 0, NULL, + HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { - BT_ERR("%s: Read ROM version failed (%ld)", - hdev->name, PTR_ERR(skb)); - return PTR_ERR(skb); + int err = PTR_ERR(skb); + BT_ERR("%s: CSR: Local version failed (%d)", hdev->name, err); + return err; } - if (skb->len != sizeof(*rom_version)) { - BT_ERR("%s: RTL version event length mismatch", hdev->name); + if (skb->len != sizeof(struct hci_rp_read_local_version)) { + BT_ERR("%s: CSR: Local version length mismatch", hdev->name); kfree_skb(skb); return -EIO; } - rom_version = (struct rtl_rom_version_evt *)skb->data; - BT_INFO("%s: rom_version status=%x version=%x", - hdev->name, rom_version->status, rom_version->version); - - ret = rom_version->status; - if (ret == 0) - *version = rom_version->version; - - kfree_skb(skb); - return ret; -} - -static int rtl8723b_parse_firmware(struct hci_dev *hdev, u16 lmp_subver, - const struct firmware *fw, - unsigned char **_buf) -{ - const u8 extension_sig[] = { 0x51, 0x04, 0xfd, 0x77 }; - struct rtl_epatch_header *epatch_info; - unsigned char *buf; - int i, ret, len; - size_t min_size; - u8 opcode, length, data, rom_version = 0; - int project_id = -1; - const unsigned char *fwptr, *chip_id_base; - const unsigned char *patch_length_base, *patch_offset_base; - u32 patch_offset = 0; - u16 patch_length, num_patches; - const u16 project_id_to_lmp_subver[] = { - RTL_ROM_LMP_8723A, - RTL_ROM_LMP_8723B, - RTL_ROM_LMP_8821A, - RTL_ROM_LMP_8761A - }; - - ret = rtl_read_rom_version(hdev, &rom_version); - if (ret) - return -bt_to_errno(ret); - - min_size = sizeof(struct rtl_epatch_header) + sizeof(extension_sig) + 3; - if (fw->size < min_size) - return -EINVAL; - - fwptr = fw->data + fw->size - sizeof(extension_sig); - if (memcmp(fwptr, extension_sig, sizeof(extension_sig)) != 0) { - BT_ERR("%s: extension section signature mismatch", hdev->name); - return -EINVAL; - } - - /* Loop from the end of the firmware parsing instructions, until - * we find an instruction that identifies the "project ID" for the - * hardware supported by this firwmare file. - * Once we have that, we double-check that that project_id is suitable - * for the hardware we are working with. - */ - while (fwptr >= fw->data + (sizeof(struct rtl_epatch_header) + 3)) { - opcode = *--fwptr; - length = *--fwptr; - data = *--fwptr; - - BT_DBG("check op=%x len=%x data=%x", opcode, length, data); - - if (opcode == 0xff) /* EOF */ - break; - - if (length == 0) { - BT_ERR("%s: found instruction with length 0", - hdev->name); - return -EINVAL; - } - - if (opcode == 0 && length == 1) { - project_id = data; - break; - } - - fwptr -= length; - } - - if (project_id < 0) { - BT_ERR("%s: failed to find version instruction", hdev->name); - return -EINVAL; - } - - if (project_id >= ARRAY_SIZE(project_id_to_lmp_subver)) { - BT_ERR("%s: unknown project id %d", hdev->name, project_id); - return -EINVAL; - } - - if (lmp_subver != project_id_to_lmp_subver[project_id]) { - BT_ERR("%s: firmware is for %x but this is a %x", hdev->name, - project_id_to_lmp_subver[project_id], lmp_subver); - return -EINVAL; - } - - epatch_info = (struct rtl_epatch_header *)fw->data; - if (memcmp(epatch_info->signature, RTL_EPATCH_SIGNATURE, 8) != 0) { - BT_ERR("%s: bad EPATCH signature", hdev->name); - return -EINVAL; - } - - num_patches = le16_to_cpu(epatch_info->num_patches); - BT_DBG("fw_version=%x, num_patches=%d", - le32_to_cpu(epatch_info->fw_version), num_patches); - - /* After the rtl_epatch_header there is a funky patch metadata section. - * Assuming 2 patches, the layout is: - * ChipID1 ChipID2 PatchLength1 PatchLength2 PatchOffset1 PatchOffset2 - * - * Find the right patch for this chip. - */ - min_size += 8 * num_patches; - if (fw->size < min_size) - return -EINVAL; - - chip_id_base = fw->data + sizeof(struct rtl_epatch_header); - patch_length_base = chip_id_base + (sizeof(u16) * num_patches); - patch_offset_base = patch_length_base + (sizeof(u16) * num_patches); - for (i = 0; i < num_patches; i++) { - u16 chip_id = get_unaligned_le16(chip_id_base + - (i * sizeof(u16))); - if (chip_id == rom_version + 1) { - patch_length = get_unaligned_le16(patch_length_base + - (i * sizeof(u16))); - patch_offset = get_unaligned_le32(patch_offset_base + - (i * sizeof(u32))); - break; - } - } - - if (!patch_offset) { - BT_ERR("%s: didn't find patch for chip id %d", - hdev->name, rom_version); - return -EINVAL; - } - - BT_DBG("length=%x offset=%x index %d", patch_length, patch_offset, i); - min_size = patch_offset + patch_length; - if (fw->size < min_size) - return -EINVAL; - - /* Copy the firmware into a new buffer and write the version at - * the end. - */ - len = patch_length; - buf = kmemdup(fw->data + patch_offset, patch_length, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - memcpy(buf + patch_length - 4, &epatch_info->fw_version, 4); - - *_buf = buf; - return len; -} - -static int rtl_download_firmware(struct hci_dev *hdev, - const unsigned char *data, int fw_len) -{ - struct rtl_download_cmd *dl_cmd; - int frag_num = fw_len / RTL_FRAG_LEN + 1; - int frag_len = RTL_FRAG_LEN; - int ret = 0; - int i; - - dl_cmd = kmalloc(sizeof(struct rtl_download_cmd), GFP_KERNEL); - if (!dl_cmd) - return -ENOMEM; - - for (i = 0; i < frag_num; i++) { - struct rtl_download_response *dl_resp; - struct sk_buff *skb; - - BT_DBG("download fw (%d/%d)", i, frag_num); - - dl_cmd->index = i; - if (i == (frag_num - 1)) { - dl_cmd->index |= 0x80; /* data end */ - frag_len = fw_len % RTL_FRAG_LEN; - } - memcpy(dl_cmd->data, data, frag_len); - - /* Send download command */ - skb = __hci_cmd_sync(hdev, 0xfc20, frag_len + 1, dl_cmd, - HCI_INIT_TIMEOUT); - if (IS_ERR(skb)) { - BT_ERR("%s: download fw command failed (%ld)", - hdev->name, PTR_ERR(skb)); - ret = -PTR_ERR(skb); - goto out; - } - - if (skb->len != sizeof(*dl_resp)) { - BT_ERR("%s: download fw event length mismatch", - hdev->name); - kfree_skb(skb); - ret = -EIO; - goto out; - } - - dl_resp = (struct rtl_download_response *)skb->data; - if (dl_resp->status != 0) { - kfree_skb(skb); - ret = bt_to_errno(dl_resp->status); - goto out; - } - - kfree_skb(skb); - data += RTL_FRAG_LEN; - } - -out: - kfree(dl_cmd); - return ret; -} - -static int btusb_setup_rtl8723a(struct hci_dev *hdev) -{ - struct btusb_data *data = dev_get_drvdata(&hdev->dev); - struct usb_device *udev = interface_to_usbdev(data->intf); - const struct firmware *fw; - int ret; - - BT_INFO("%s: rtl: loading rtl_bt/rtl8723a_fw.bin", hdev->name); - ret = request_firmware(&fw, "rtl_bt/rtl8723a_fw.bin", &udev->dev); - if (ret < 0) { - BT_ERR("%s: Failed to load rtl_bt/rtl8723a_fw.bin", hdev->name); - return ret; - } - - if (fw->size < 8) { - ret = -EINVAL; - goto out; - } - - /* Check that the firmware doesn't have the epatch signature - * (which is only for RTL8723B and newer). - */ - if (!memcmp(fw->data, RTL_EPATCH_SIGNATURE, 8)) { - BT_ERR("%s: unexpected EPATCH signature!", hdev->name); - ret = -EINVAL; - goto out; - } - - ret = rtl_download_firmware(hdev, fw->data, fw->size); - -out: - release_firmware(fw); - return ret; -} + rp = (struct hci_rp_read_local_version *)skb->data; -static int btusb_setup_rtl8723b(struct hci_dev *hdev, u16 lmp_subver, - const char *fw_name) -{ - struct btusb_data *data = dev_get_drvdata(&hdev->dev); - struct usb_device *udev = interface_to_usbdev(data->intf); - unsigned char *fw_data = NULL; - const struct firmware *fw; - int ret; + if (le16_to_cpu(rp->manufacturer) != 10) { + /* Clear the reset quirk since this is not an actual + * early Bluetooth 1.1 device from CSR. + */ + clear_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks); - BT_INFO("%s: rtl: loading %s", hdev->name, fw_name); - ret = request_firmware(&fw, fw_name, &udev->dev); - if (ret < 0) { - BT_ERR("%s: Failed to load %s", hdev->name, fw_name); - return ret; + /* These fake CSR controllers have all a broken + * stored link key handling and so just disable it. + */ + set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks); } - ret = rtl8723b_parse_firmware(hdev, lmp_subver, fw, &fw_data); - if (ret < 0) - goto out; - - ret = rtl_download_firmware(hdev, fw_data, ret); - kfree(fw_data); - if (ret < 0) - goto out; - -out: - release_firmware(fw); - return ret; -} - -static int btusb_setup_realtek(struct hci_dev *hdev) -{ - struct sk_buff *skb; - struct hci_rp_read_local_version *resp; - u16 lmp_subver; - - skb = btusb_read_local_version(hdev); - if (IS_ERR(skb)) - return -PTR_ERR(skb); - - resp = (struct hci_rp_read_local_version *)skb->data; - BT_INFO("%s: rtl: examining hci_ver=%02x hci_rev=%04x lmp_ver=%02x " - "lmp_subver=%04x", hdev->name, resp->hci_ver, resp->hci_rev, - resp->lmp_ver, resp->lmp_subver); - - lmp_subver = le16_to_cpu(resp->lmp_subver); kfree_skb(skb); - /* Match a set of subver values that correspond to stock firmware, - * which is not compatible with standard btusb. - * If matched, upload an alternative firmware that does conform to - * standard btusb. Once that firmware is uploaded, the subver changes - * to a different value. - */ - switch (lmp_subver) { - case RTL_ROM_LMP_8723A: - case RTL_ROM_LMP_3499: - return btusb_setup_rtl8723a(hdev); - case RTL_ROM_LMP_8723B: - return btusb_setup_rtl8723b(hdev, lmp_subver, - "rtl_bt/rtl8723b_fw.bin"); - case RTL_ROM_LMP_8821A: - return btusb_setup_rtl8723b(hdev, lmp_subver, - "rtl_bt/rtl8821a_fw.bin"); - case RTL_ROM_LMP_8761A: - return btusb_setup_rtl8723b(hdev, lmp_subver, - "rtl_bt/rtl8761a_fw.bin"); - default: - BT_INFO("rtl: assuming no firmware upload needed."); - return 0; - } + return 0; } static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, @@ -1951,12 +1566,6 @@ static int btusb_setup_intel(struct hci_dev *hdev) } ver = (struct intel_version *)skb->data; - if (ver->status) { - BT_ERR("%s Intel fw version event failed (%02x)", hdev->name, - ver->status); - kfree_skb(skb); - return -bt_to_errno(ver->status); - } BT_INFO("%s: read Intel version: %02x%02x%02x%02x%02x%02x%02x%02x%02x", hdev->name, ver->hw_platform, ver->hw_variant, @@ -1990,6 +1599,8 @@ static int btusb_setup_intel(struct hci_dev *hdev) } fw_ptr = fw->data; + kfree_skb(skb); + /* This Intel specific command enables the manufacturer mode of the * controller. * @@ -2004,15 +1615,6 @@ static int btusb_setup_intel(struct hci_dev *hdev) return PTR_ERR(skb); } - if (skb->data[0]) { - u8 evt_status = skb->data[0]; - - BT_ERR("%s enable Intel manufacturer mode event failed (%02x)", - hdev->name, evt_status); - kfree_skb(skb); - release_firmware(fw); - return -bt_to_errno(evt_status); - } kfree_skb(skb); disable_patch = 1; @@ -2331,6 +1933,7 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) struct intel_boot_params *params; const struct firmware *fw; const u8 *fw_ptr; + u32 frag_len; char fwname[64]; ktime_t calltime, delta, rettime; unsigned long long duration; @@ -2358,13 +1961,6 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) } ver = (struct intel_version *)skb->data; - if (ver->status) { - BT_ERR("%s: Intel version command failure (%02x)", - hdev->name, ver->status); - err = -bt_to_errno(ver->status); - kfree_skb(skb); - return err; - } /* The hardware platform number has a fixed value of 0x37 and * for now only accept this single value. @@ -2439,13 +2035,6 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) } params = (struct intel_boot_params *)skb->data; - if (params->status) { - BT_ERR("%s: Intel boot parameters command failure (%02x)", - hdev->name, params->status); - err = -bt_to_errno(params->status); - kfree_skb(skb); - return err; - } BT_INFO("%s: Device revision is %u", hdev->name, le16_to_cpu(params->dev_revid)); @@ -2495,6 +2084,12 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) BT_INFO("%s: Found device firmware: %s", hdev->name, fwname); + /* Save the DDC file name for later use to apply once the firmware + * downloading is done. + */ + snprintf(fwname, sizeof(fwname), "intel/ibt-11-%u.ddc", + le16_to_cpu(params->dev_revid)); + kfree_skb(skb); if (fw->size < 644) { @@ -2537,24 +2132,33 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) } fw_ptr = fw->data + 644; + frag_len = 0; while (fw_ptr - fw->data < fw->size) { - struct hci_command_hdr *cmd = (void *)fw_ptr; - u8 cmd_len; + struct hci_command_hdr *cmd = (void *)(fw_ptr + frag_len); - cmd_len = sizeof(*cmd) + cmd->plen; + frag_len += sizeof(*cmd) + cmd->plen; - /* Send each command from the firmware data buffer as - * a single Data fragment. + /* The paramter length of the secure send command requires + * a 4 byte alignment. It happens so that the firmware file + * contains proper Intel_NOP commands to align the fragments + * as needed. + * + * Send set of commands with 4 byte alignment from the + * firmware data buffer as a single Data fragement. */ - err = btusb_intel_secure_send(hdev, 0x01, cmd_len, fw_ptr); - if (err < 0) { - BT_ERR("%s: Failed to send firmware data (%d)", - hdev->name, err); - goto done; - } + if (!(frag_len % 4)) { + err = btusb_intel_secure_send(hdev, 0x01, frag_len, + fw_ptr); + if (err < 0) { + BT_ERR("%s: Failed to send firmware data (%d)", + hdev->name, err); + goto done; + } - fw_ptr += cmd_len; + fw_ptr += frag_len; + frag_len = 0; + } } set_bit(BTUSB_FIRMWARE_LOADED, &data->flags); @@ -2647,6 +2251,43 @@ done: clear_bit(BTUSB_BOOTLOADER, &data->flags); + /* Once the device is running in operational mode, it needs to apply + * the device configuration (DDC) parameters. + * + * The device can work without DDC parameters, so even if it fails + * to load the file, no need to fail the setup. + */ + err = request_firmware_direct(&fw, fwname, &hdev->dev); + if (err < 0) + return 0; + + BT_INFO("%s: Found Intel DDC parameters: %s", hdev->name, fwname); + + fw_ptr = fw->data; + + /* DDC file contains one or more DDC structure which has + * Length (1 byte), DDC ID (2 bytes), and DDC value (Length - 2). + */ + while (fw->size > fw_ptr - fw->data) { + u8 cmd_plen = fw_ptr[0] + sizeof(u8); + + skb = __hci_cmd_sync(hdev, 0xfc8b, cmd_plen, fw_ptr, + HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + BT_ERR("%s: Failed to send Intel_Write_DDC (%ld)", + hdev->name, PTR_ERR(skb)); + release_firmware(fw); + return PTR_ERR(skb); + } + + fw_ptr += cmd_plen; + kfree_skb(skb); + } + + release_firmware(fw); + + BT_INFO("%s: Applying Intel DDC parameters completed", hdev->name); + return 0; } @@ -2678,13 +2319,6 @@ static void btusb_hw_error_intel(struct hci_dev *hdev, u8 code) return; } - if (skb->data[0] != 0x00) { - BT_ERR("%s: Exception info command failure (%02x)", - hdev->name, skb->data[0]); - kfree_skb(skb); - return; - } - BT_ERR("%s: Exception info %s", hdev->name, (char *)(skb->data + 1)); kfree_skb(skb); @@ -2792,6 +2426,7 @@ struct qca_device_info { static const struct qca_device_info qca_devices_table[] = { { 0x00000100, 20, 4, 10 }, /* Rome 1.0 */ { 0x00000101, 20, 4, 10 }, /* Rome 1.1 */ + { 0x00000200, 28, 4, 18 }, /* Rome 2.0 */ { 0x00000201, 28, 4, 18 }, /* Rome 2.1 */ { 0x00000300, 28, 4, 18 }, /* Rome 3.0 */ { 0x00000302, 28, 4, 18 }, /* Rome 3.2 */ @@ -3175,8 +2810,17 @@ static int btusb_probe(struct usb_interface *intf, hdev->set_bdaddr = btusb_set_bdaddr_ath3012; } - if (id->driver_info & BTUSB_REALTEK) - hdev->setup = btusb_setup_realtek; +#ifdef CONFIG_BT_HCIBTUSB_RTL + if (id->driver_info & BTUSB_REALTEK) { + hdev->setup = btrtl_setup_realtek; + + /* Realtek devices lose their updated firmware over suspend, + * but the USB hub doesn't notice any status change. + * Explicitly request a device reset on resume. + */ + set_bit(BTUSB_RESET_RESUME, &data->flags); + } +#endif if (id->driver_info & BTUSB_AMP) { /* AMP controllers do not support SCO packets */ @@ -3308,6 +2952,14 @@ static int btusb_suspend(struct usb_interface *intf, pm_message_t message) btusb_stop_traffic(data); usb_kill_anchored_urbs(&data->tx_anchor); + /* Optionally request a device reset on resume, but only when + * wakeups are disabled. If wakeups are enabled we assume the + * device will stay powered up throughout suspend. + */ + if (test_bit(BTUSB_RESET_RESUME, &data->flags) && + !device_may_wakeup(&data->udev->dev)) + data->udev->reset_resume = 1; + return 0; } diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c index 55c135b7757a..7a722df97343 100644 --- a/drivers/bluetooth/btwilink.c +++ b/drivers/bluetooth/btwilink.c @@ -22,7 +22,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ -#define DEBUG + #include <linux/platform_device.h> #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> diff --git a/drivers/bluetooth/hci_ath.c b/drivers/bluetooth/hci_ath.c index ec8fa0e0f036..6da5e4ca13ea 100644 --- a/drivers/bluetooth/hci_ath.c +++ b/drivers/bluetooth/hci_ath.c @@ -192,6 +192,7 @@ static int ath_recv(struct hci_uart *hu, const void *data, int count) if (IS_ERR(ath->rx_skb)) { int err = PTR_ERR(ath->rx_skb); BT_ERR("%s: Frame reassembly failed (%d)", hu->hdev->name, err); + ath->rx_skb = NULL; return err; } diff --git a/drivers/bluetooth/hci_bcm.c b/drivers/bluetooth/hci_bcm.c index 1ec0b4a5ffa6..23523e140a9a 100644 --- a/drivers/bluetooth/hci_bcm.c +++ b/drivers/bluetooth/hci_bcm.c @@ -24,6 +24,7 @@ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/skbuff.h> +#include <linux/firmware.h> #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> @@ -36,6 +37,55 @@ struct bcm_data { struct sk_buff_head txq; }; +static int bcm_set_baudrate(struct hci_uart *hu, unsigned int speed) +{ + struct hci_dev *hdev = hu->hdev; + struct sk_buff *skb; + struct bcm_update_uart_baud_rate param; + + if (speed > 3000000) { + struct bcm_write_uart_clock_setting clock; + + clock.type = BCM_UART_CLOCK_48MHZ; + + BT_DBG("%s: Set Controller clock (%d)", hdev->name, clock.type); + + /* This Broadcom specific command changes the UART's controller + * clock for baud rate > 3000000. + */ + skb = __hci_cmd_sync(hdev, 0xfc45, 1, &clock, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + int err = PTR_ERR(skb); + BT_ERR("%s: BCM: failed to write clock command (%d)", + hdev->name, err); + return err; + } + + kfree_skb(skb); + } + + BT_DBG("%s: Set Controller UART speed to %d bit/s", hdev->name, speed); + + param.zero = cpu_to_le16(0); + param.baud_rate = cpu_to_le32(speed); + + /* This Broadcom specific command changes the UART's controller baud + * rate. + */ + skb = __hci_cmd_sync(hdev, 0xfc18, sizeof(param), ¶m, + HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + int err = PTR_ERR(skb); + BT_ERR("%s: BCM: failed to write update baudrate command (%d)", + hdev->name, err); + return err; + } + + kfree_skb(skb); + + return 0; +} + static int bcm_open(struct hci_uart *hu) { struct bcm_data *bcm; @@ -79,11 +129,62 @@ static int bcm_flush(struct hci_uart *hu) static int bcm_setup(struct hci_uart *hu) { + char fw_name[64]; + const struct firmware *fw; + unsigned int speed; + int err; + BT_DBG("hu %p", hu); hu->hdev->set_bdaddr = btbcm_set_bdaddr; - return btbcm_setup_patchram(hu->hdev); + err = btbcm_initialize(hu->hdev, fw_name, sizeof(fw_name)); + if (err) + return err; + + err = request_firmware(&fw, fw_name, &hu->hdev->dev); + if (err < 0) { + BT_INFO("%s: BCM: Patch %s not found", hu->hdev->name, fw_name); + return 0; + } + + err = btbcm_patchram(hu->hdev, fw); + if (err) { + BT_INFO("%s: BCM: Patch failed (%d)", hu->hdev->name, err); + goto finalize; + } + + /* Init speed if any */ + if (hu->init_speed) + speed = hu->init_speed; + else if (hu->proto->init_speed) + speed = hu->proto->init_speed; + else + speed = 0; + + if (speed) + hci_uart_set_baudrate(hu, speed); + + /* Operational speed if any */ + if (hu->oper_speed) + speed = hu->oper_speed; + else if (hu->proto->oper_speed) + speed = hu->proto->oper_speed; + else + speed = 0; + + if (speed) { + err = bcm_set_baudrate(hu, speed); + if (!err) + hci_uart_set_baudrate(hu, speed); + } + +finalize: + release_firmware(fw); + + err = btbcm_finalize(hu->hdev); + + return err; } static const struct h4_recv_pkt bcm_recv_pkts[] = { @@ -104,6 +205,7 @@ static int bcm_recv(struct hci_uart *hu, const void *data, int count) if (IS_ERR(bcm->rx_skb)) { int err = PTR_ERR(bcm->rx_skb); BT_ERR("%s: Frame reassembly failed (%d)", hu->hdev->name, err); + bcm->rx_skb = NULL; return err; } @@ -133,10 +235,13 @@ static struct sk_buff *bcm_dequeue(struct hci_uart *hu) static const struct hci_uart_proto bcm_proto = { .id = HCI_UART_BCM, .name = "BCM", + .init_speed = 115200, + .oper_speed = 4000000, .open = bcm_open, .close = bcm_close, .flush = bcm_flush, .setup = bcm_setup, + .set_baudrate = bcm_set_baudrate, .recv = bcm_recv, .enqueue = bcm_enqueue, .dequeue = bcm_dequeue, diff --git a/drivers/bluetooth/hci_bcsp.c b/drivers/bluetooth/hci_bcsp.c index dc8e3d4356a0..d0b615a932d1 100644 --- a/drivers/bluetooth/hci_bcsp.c +++ b/drivers/bluetooth/hci_bcsp.c @@ -47,8 +47,8 @@ #include "hci_uart.h" -static bool txcrc = 1; -static bool hciextn = 1; +static bool txcrc = true; +static bool hciextn = true; #define BCSP_TXWINSIZE 4 @@ -436,7 +436,7 @@ static inline void bcsp_unslip_one_byte(struct bcsp_struct *bcsp, unsigned char break; default: memcpy(skb_put(bcsp->rx_skb, 1), &byte, 1); - if ((bcsp->rx_skb-> data[0] & 0x40) != 0 && + if ((bcsp->rx_skb->data[0] & 0x40) != 0 && bcsp->rx_state != BCSP_W4_CRC) bcsp_crc_update(&bcsp->message_crc, byte); bcsp->rx_count--; @@ -447,24 +447,24 @@ static inline void bcsp_unslip_one_byte(struct bcsp_struct *bcsp, unsigned char switch (byte) { case 0xdc: memcpy(skb_put(bcsp->rx_skb, 1), &c0, 1); - if ((bcsp->rx_skb-> data[0] & 0x40) != 0 && + if ((bcsp->rx_skb->data[0] & 0x40) != 0 && bcsp->rx_state != BCSP_W4_CRC) - bcsp_crc_update(&bcsp-> message_crc, 0xc0); + bcsp_crc_update(&bcsp->message_crc, 0xc0); bcsp->rx_esc_state = BCSP_ESCSTATE_NOESC; bcsp->rx_count--; break; case 0xdd: memcpy(skb_put(bcsp->rx_skb, 1), &db, 1); - if ((bcsp->rx_skb-> data[0] & 0x40) != 0 && + if ((bcsp->rx_skb->data[0] & 0x40) != 0 && bcsp->rx_state != BCSP_W4_CRC) - bcsp_crc_update(&bcsp-> message_crc, 0xdb); + bcsp_crc_update(&bcsp->message_crc, 0xdb); bcsp->rx_esc_state = BCSP_ESCSTATE_NOESC; bcsp->rx_count--; break; default: - BT_ERR ("Invalid byte %02x after esc byte", byte); + BT_ERR("Invalid byte %02x after esc byte", byte); kfree_skb(bcsp->rx_skb); bcsp->rx_skb = NULL; bcsp->rx_state = BCSP_W4_PKT_DELIMITER; @@ -527,7 +527,7 @@ static void bcsp_complete_rx_pkt(struct hci_uart *hu) hci_recv_frame(hu->hdev, bcsp->rx_skb); } else { - BT_ERR ("Packet for unknown channel (%u %s)", + BT_ERR("Packet for unknown channel (%u %s)", bcsp->rx_skb->data[1] & 0x0f, bcsp->rx_skb->data[0] & 0x80 ? "reliable" : "unreliable"); @@ -587,7 +587,7 @@ static int bcsp_recv(struct hci_uart *hu, const void *data, int count) } if (bcsp->rx_skb->data[0] & 0x80 /* reliable pkt */ && (bcsp->rx_skb->data[0] & 0x07) != bcsp->rxseq_txack) { - BT_ERR ("Out-of-order packet arrived, got %u expected %u", + BT_ERR("Out-of-order packet arrived, got %u expected %u", bcsp->rx_skb->data[0] & 0x07, bcsp->rxseq_txack); kfree_skb(bcsp->rx_skb); diff --git a/drivers/bluetooth/hci_h4.c b/drivers/bluetooth/hci_h4.c index f7190f01e135..57faddc53645 100644 --- a/drivers/bluetooth/hci_h4.c +++ b/drivers/bluetooth/hci_h4.c @@ -133,6 +133,7 @@ static int h4_recv(struct hci_uart *hu, const void *data, int count) if (IS_ERR(h4->rx_skb)) { int err = PTR_ERR(h4->rx_skb); BT_ERR("%s: Frame reassembly failed (%d)", hu->hdev->name, err); + h4->rx_skb = NULL; return err; } diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c index 5c9a73f02664..177dd69fdd95 100644 --- a/drivers/bluetooth/hci_ldisc.c +++ b/drivers/bluetooth/hci_ldisc.c @@ -40,6 +40,7 @@ #include <linux/signal.h> #include <linux/ioctl.h> #include <linux/skbuff.h> +#include <linux/firmware.h> #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> @@ -265,11 +266,133 @@ static int hci_uart_send_frame(struct hci_dev *hdev, struct sk_buff *skb) return 0; } +/* Flow control or un-flow control the device */ +void hci_uart_set_flow_control(struct hci_uart *hu, bool enable) +{ + struct tty_struct *tty = hu->tty; + struct ktermios ktermios; + int status; + unsigned int set = 0; + unsigned int clear = 0; + + if (enable) { + /* Disable hardware flow control */ + ktermios = tty->termios; + ktermios.c_cflag &= ~CRTSCTS; + status = tty_set_termios(tty, &ktermios); + BT_DBG("Disabling hardware flow control: %s", + status ? "failed" : "success"); + + /* Clear RTS to prevent the device from sending */ + /* Most UARTs need OUT2 to enable interrupts */ + status = tty->driver->ops->tiocmget(tty); + BT_DBG("Current tiocm 0x%x", status); + + set &= ~(TIOCM_OUT2 | TIOCM_RTS); + clear = ~set; + set &= TIOCM_DTR | TIOCM_RTS | TIOCM_OUT1 | + TIOCM_OUT2 | TIOCM_LOOP; + clear &= TIOCM_DTR | TIOCM_RTS | TIOCM_OUT1 | + TIOCM_OUT2 | TIOCM_LOOP; + status = tty->driver->ops->tiocmset(tty, set, clear); + BT_DBG("Clearing RTS: %s", status ? "failed" : "success"); + } else { + /* Set RTS to allow the device to send again */ + status = tty->driver->ops->tiocmget(tty); + BT_DBG("Current tiocm 0x%x", status); + + set |= (TIOCM_OUT2 | TIOCM_RTS); + clear = ~set; + set &= TIOCM_DTR | TIOCM_RTS | TIOCM_OUT1 | + TIOCM_OUT2 | TIOCM_LOOP; + clear &= TIOCM_DTR | TIOCM_RTS | TIOCM_OUT1 | + TIOCM_OUT2 | TIOCM_LOOP; + status = tty->driver->ops->tiocmset(tty, set, clear); + BT_DBG("Setting RTS: %s", status ? "failed" : "success"); + + /* Re-enable hardware flow control */ + ktermios = tty->termios; + ktermios.c_cflag |= CRTSCTS; + status = tty_set_termios(tty, &ktermios); + BT_DBG("Enabling hardware flow control: %s", + status ? "failed" : "success"); + } +} + +void hci_uart_set_speeds(struct hci_uart *hu, unsigned int init_speed, + unsigned int oper_speed) +{ + hu->init_speed = init_speed; + hu->oper_speed = oper_speed; +} + +void hci_uart_init_tty(struct hci_uart *hu) +{ + struct tty_struct *tty = hu->tty; + struct ktermios ktermios; + + /* Bring the UART into a known 8 bits no parity hw fc state */ + ktermios = tty->termios; + ktermios.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP | + INLCR | IGNCR | ICRNL | IXON); + ktermios.c_oflag &= ~OPOST; + ktermios.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN); + ktermios.c_cflag &= ~(CSIZE | PARENB); + ktermios.c_cflag |= CS8; + ktermios.c_cflag |= CRTSCTS; + + /* tty_set_termios() return not checked as it is always 0 */ + tty_set_termios(tty, &ktermios); +} + +void hci_uart_set_baudrate(struct hci_uart *hu, unsigned int speed) +{ + struct tty_struct *tty = hu->tty; + struct ktermios ktermios; + + ktermios = tty->termios; + ktermios.c_cflag &= ~CBAUD; + tty_termios_encode_baud_rate(&ktermios, speed, speed); + + /* tty_set_termios() return not checked as it is always 0 */ + tty_set_termios(tty, &ktermios); + + BT_DBG("%s: New tty speeds: %d/%d", hu->hdev->name, + tty->termios.c_ispeed, tty->termios.c_ospeed); +} + static int hci_uart_setup(struct hci_dev *hdev) { struct hci_uart *hu = hci_get_drvdata(hdev); struct hci_rp_read_local_version *ver; struct sk_buff *skb; + unsigned int speed; + int err; + + /* Init speed if any */ + if (hu->init_speed) + speed = hu->init_speed; + else if (hu->proto->init_speed) + speed = hu->proto->init_speed; + else + speed = 0; + + if (speed) + hci_uart_set_baudrate(hu, speed); + + /* Operational speed if any */ + if (hu->oper_speed) + speed = hu->oper_speed; + else if (hu->proto->oper_speed) + speed = hu->proto->oper_speed; + else + speed = 0; + + if (hu->proto->set_baudrate && speed) { + err = hu->proto->set_baudrate(hu, speed); + if (!err) + hci_uart_set_baudrate(hu, speed); + } if (hu->proto->setup) return hu->proto->setup(hu); diff --git a/drivers/bluetooth/hci_uart.h b/drivers/bluetooth/hci_uart.h index 72120a5ba13c..ce9c670956f5 100644 --- a/drivers/bluetooth/hci_uart.h +++ b/drivers/bluetooth/hci_uart.h @@ -58,10 +58,13 @@ struct hci_uart; struct hci_uart_proto { unsigned int id; const char *name; + unsigned int init_speed; + unsigned int oper_speed; int (*open)(struct hci_uart *hu); int (*close)(struct hci_uart *hu); int (*flush)(struct hci_uart *hu); int (*setup)(struct hci_uart *hu); + int (*set_baudrate)(struct hci_uart *hu, unsigned int speed); int (*recv)(struct hci_uart *hu, const void *data, int len); int (*enqueue)(struct hci_uart *hu, struct sk_buff *skb); struct sk_buff *(*dequeue)(struct hci_uart *hu); @@ -82,6 +85,9 @@ struct hci_uart { struct sk_buff *tx_skb; unsigned long tx_state; spinlock_t rx_lock; + + unsigned int init_speed; + unsigned int oper_speed; }; /* HCI_UART proto flag bits */ @@ -96,6 +102,11 @@ int hci_uart_register_proto(const struct hci_uart_proto *p); int hci_uart_unregister_proto(const struct hci_uart_proto *p); int hci_uart_tx_wakeup(struct hci_uart *hu); int hci_uart_init_ready(struct hci_uart *hu); +void hci_uart_init_tty(struct hci_uart *hu); +void hci_uart_set_baudrate(struct hci_uart *hu, unsigned int speed); +void hci_uart_set_flow_control(struct hci_uart *hu, bool enable); +void hci_uart_set_speeds(struct hci_uart *hu, unsigned int init_speed, + unsigned int oper_speed); #ifdef CONFIG_BT_HCIUART_H4 int h4_init(void); diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c index 6653473f2757..78653db2ef2b 100644 --- a/drivers/bluetooth/hci_vhci.c +++ b/drivers/bluetooth/hci_vhci.c @@ -366,7 +366,7 @@ static const struct file_operations vhci_fops = { .llseek = no_llseek, }; -static struct miscdevice vhci_miscdev= { +static struct miscdevice vhci_miscdev = { .name = "vhci", .fops = &vhci_fops, .minor = VHCI_MINOR, |