diff options
author | David S. Miller <davem@davemloft.net> | 2018-08-06 03:29:27 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2018-08-06 03:29:27 +0300 |
commit | 6277547f33ecd6beaca373cb0858df69706e466a (patch) | |
tree | a3905e29130100d1766dc517355b0773c7658aa6 /drivers | |
parent | add0decc46a061069a9f9fd90eff95e590339039 (diff) | |
parent | 6c3711ec64fd23a9abc8aaf59a9429569a6282df (diff) | |
download | linux-6277547f33ecd6beaca373cb0858df69706e466a.tar.xz |
Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:
====================
pull request: bluetooth-next 2018-08-05
Here's the main bluetooth-next pull request for the 4.19 kernel.
- Added support for Bluetooth Advertising Extensions
- Added vendor driver support to hci_h5 HCI driver
- Added serdev support to hci_h5 driver
- Added support for Qualcomm wcn3990 controller
- Added support for RTL8723BS and RTL8723DS controllers
- btusb: Added new ID for Realtek 8723DE
- Several other smaller fixes & cleanups
Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/bluetooth/Kconfig | 1 | ||||
-rw-r--r-- | drivers/bluetooth/bfusb.c | 2 | ||||
-rw-r--r-- | drivers/bluetooth/bluecard_cs.c | 2 | ||||
-rw-r--r-- | drivers/bluetooth/bpa10x.c | 6 | ||||
-rw-r--r-- | drivers/bluetooth/btmrvl_sdio.c | 2 | ||||
-rw-r--r-- | drivers/bluetooth/btqca.c | 117 | ||||
-rw-r--r-- | drivers/bluetooth/btqca.h | 22 | ||||
-rw-r--r-- | drivers/bluetooth/btrtl.c | 512 | ||||
-rw-r--r-- | drivers/bluetooth/btrtl.h | 53 | ||||
-rw-r--r-- | drivers/bluetooth/btusb.c | 116 | ||||
-rw-r--r-- | drivers/bluetooth/hci_h5.c | 202 | ||||
-rw-r--r-- | drivers/bluetooth/hci_intel.c | 2 | ||||
-rw-r--r-- | drivers/bluetooth/hci_qca.c | 490 |
13 files changed, 1211 insertions, 316 deletions
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig index f3c643a0473c..5f953ca8ac5b 100644 --- a/drivers/bluetooth/Kconfig +++ b/drivers/bluetooth/Kconfig @@ -159,6 +159,7 @@ config BT_HCIUART_LL config BT_HCIUART_3WIRE bool "Three-wire UART (H5) protocol support" depends on BT_HCIUART + depends on BT_HCIUART_SERDEV help The HCI Three-wire UART Transport Layer makes it possible to user the Bluetooth HCI over a serial port interface. The HCI diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c index ab090a313a5f..0588639b899a 100644 --- a/drivers/bluetooth/bfusb.c +++ b/drivers/bluetooth/bfusb.c @@ -490,7 +490,7 @@ static int bfusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb) count = skb->len; /* Max HCI frame size seems to be 1511 + 1 */ - nskb = bt_skb_alloc(count + 32, GFP_ATOMIC); + nskb = bt_skb_alloc(count + 32, GFP_KERNEL); if (!nskb) { BT_ERR("Can't allocate memory for new packet"); return -ENOMEM; diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c index 82437a69f99c..cc6e56223656 100644 --- a/drivers/bluetooth/bluecard_cs.c +++ b/drivers/bluetooth/bluecard_cs.c @@ -565,7 +565,7 @@ static int bluecard_hci_set_baud_rate(struct hci_dev *hdev, int baud) /* Ericsson baud rate command */ unsigned char cmd[] = { HCI_COMMAND_PKT, 0x09, 0xfc, 0x01, 0x03 }; - skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC); + skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_KERNEL); if (!skb) { BT_ERR("Can't allocate mem for new packet"); return -1; diff --git a/drivers/bluetooth/bpa10x.c b/drivers/bluetooth/bpa10x.c index c6f7cc57db14..d1c2adf08576 100644 --- a/drivers/bluetooth/bpa10x.c +++ b/drivers/bluetooth/bpa10x.c @@ -289,7 +289,7 @@ static int bpa10x_send_frame(struct hci_dev *hdev, struct sk_buff *skb) skb->dev = (void *) hdev; - urb = usb_alloc_urb(0, GFP_ATOMIC); + urb = usb_alloc_urb(0, GFP_KERNEL); if (!urb) return -ENOMEM; @@ -298,7 +298,7 @@ static int bpa10x_send_frame(struct hci_dev *hdev, struct sk_buff *skb) switch (hci_skb_pkt_type(skb)) { case HCI_COMMAND_PKT: - dr = kmalloc(sizeof(*dr), GFP_ATOMIC); + dr = kmalloc(sizeof(*dr), GFP_KERNEL); if (!dr) { usb_free_urb(urb); return -ENOMEM; @@ -343,7 +343,7 @@ static int bpa10x_send_frame(struct hci_dev *hdev, struct sk_buff *skb) usb_anchor_urb(urb, &data->tx_anchor); - err = usb_submit_urb(urb, GFP_ATOMIC); + err = usb_submit_urb(urb, GFP_KERNEL); if (err < 0) { bt_dev_err(hdev, "urb %p submission failed", urb); kfree(urb->setup_packet); diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c index 888bac49a87b..fb3d03928460 100644 --- a/drivers/bluetooth/btmrvl_sdio.c +++ b/drivers/bluetooth/btmrvl_sdio.c @@ -718,7 +718,7 @@ static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv) } /* Allocate buffer */ - skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_ATOMIC); + skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_KERNEL); if (!skb) { BT_ERR("No free skb"); ret = -ENOMEM; diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c index 8219816c54a0..488f5e7521dd 100644 --- a/drivers/bluetooth/btqca.c +++ b/drivers/bluetooth/btqca.c @@ -27,7 +27,7 @@ #define VERSION "0.1" -static int rome_patch_ver_req(struct hci_dev *hdev, u32 *rome_version) +int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version) { struct sk_buff *skb; struct edl_event_hdr *edl; @@ -35,36 +35,35 @@ static int rome_patch_ver_req(struct hci_dev *hdev, u32 *rome_version) char cmd; int err = 0; - BT_DBG("%s: ROME Patch Version Request", hdev->name); + bt_dev_dbg(hdev, "QCA Version Request"); cmd = EDL_PATCH_VER_REQ_CMD; skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN, &cmd, HCI_VENDOR_PKT, HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { err = PTR_ERR(skb); - BT_ERR("%s: Failed to read version of ROME (%d)", hdev->name, - err); + bt_dev_err(hdev, "Reading QCA version information failed (%d)", + err); return err; } if (skb->len != sizeof(*edl) + sizeof(*ver)) { - BT_ERR("%s: Version size mismatch len %d", hdev->name, - skb->len); + bt_dev_err(hdev, "QCA Version size mismatch len %d", skb->len); err = -EILSEQ; goto out; } edl = (struct edl_event_hdr *)(skb->data); if (!edl) { - BT_ERR("%s: TLV with no header", hdev->name); + bt_dev_err(hdev, "QCA TLV with no header"); err = -EILSEQ; goto out; } if (edl->cresp != EDL_CMD_REQ_RES_EVT || edl->rtype != EDL_APP_VER_RES_EVT) { - BT_ERR("%s: Wrong packet received %d %d", hdev->name, - edl->cresp, edl->rtype); + bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp, + edl->rtype); err = -EIO; goto out; } @@ -76,30 +75,35 @@ static int rome_patch_ver_req(struct hci_dev *hdev, u32 *rome_version) BT_DBG("%s: ROM :0x%08x", hdev->name, le16_to_cpu(ver->rome_ver)); BT_DBG("%s: SOC :0x%08x", hdev->name, le32_to_cpu(ver->soc_id)); - /* ROME chipset version can be decided by patch and SoC + /* QCA chipset version can be decided by patch and SoC * version, combination with upper 2 bytes from SoC * and lower 2 bytes from patch will be used. */ - *rome_version = (le32_to_cpu(ver->soc_id) << 16) | + *soc_version = (le32_to_cpu(ver->soc_id) << 16) | (le16_to_cpu(ver->rome_ver) & 0x0000ffff); + if (*soc_version == 0) + err = -EILSEQ; out: kfree_skb(skb); + if (err) + bt_dev_err(hdev, "QCA Failed to get version (%d)", err); return err; } +EXPORT_SYMBOL_GPL(qca_read_soc_version); -static int rome_reset(struct hci_dev *hdev) +static int qca_send_reset(struct hci_dev *hdev) { struct sk_buff *skb; int err; - BT_DBG("%s: ROME HCI_RESET", hdev->name); + bt_dev_dbg(hdev, "QCA HCI_RESET"); skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { err = PTR_ERR(skb); - BT_ERR("%s: Reset failed (%d)", hdev->name, err); + bt_dev_err(hdev, "QCA Reset failed (%d)", err); return err; } @@ -108,7 +112,7 @@ static int rome_reset(struct hci_dev *hdev) return 0; } -static void rome_tlv_check_data(struct rome_config *config, +static void qca_tlv_check_data(struct rome_config *config, const struct firmware *fw) { const u8 *data; @@ -207,7 +211,7 @@ static void rome_tlv_check_data(struct rome_config *config, } } -static int rome_tlv_send_segment(struct hci_dev *hdev, int seg_size, +static int qca_tlv_send_segment(struct hci_dev *hdev, int seg_size, const u8 *data, enum rome_tlv_dnld_mode mode) { struct sk_buff *skb; @@ -228,19 +232,19 @@ static int rome_tlv_send_segment(struct hci_dev *hdev, int seg_size, HCI_VENDOR_PKT, HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { err = PTR_ERR(skb); - BT_ERR("%s: Failed to send TLV segment (%d)", hdev->name, err); + bt_dev_err(hdev, "QCA Failed to send TLV segment (%d)", err); return err; } if (skb->len != sizeof(*edl) + sizeof(*tlv_resp)) { - BT_ERR("%s: TLV response size mismatch", hdev->name); + bt_dev_err(hdev, "QCA TLV response size mismatch"); err = -EILSEQ; goto out; } edl = (struct edl_event_hdr *)(skb->data); if (!edl) { - BT_ERR("%s: TLV with no header", hdev->name); + bt_dev_err(hdev, "TLV with no header"); err = -EILSEQ; goto out; } @@ -249,8 +253,8 @@ static int rome_tlv_send_segment(struct hci_dev *hdev, int seg_size, if (edl->cresp != EDL_CMD_REQ_RES_EVT || edl->rtype != EDL_TVL_DNLD_RES_EVT || tlv_resp->result != 0x00) { - BT_ERR("%s: TLV with error stat 0x%x rtype 0x%x (0x%x)", - hdev->name, edl->cresp, edl->rtype, tlv_resp->result); + bt_dev_err(hdev, "QCA TLV with error stat 0x%x rtype 0x%x (0x%x)", + edl->cresp, edl->rtype, tlv_resp->result); err = -EIO; } @@ -260,23 +264,23 @@ out: return err; } -static int rome_download_firmware(struct hci_dev *hdev, +static int qca_download_firmware(struct hci_dev *hdev, struct rome_config *config) { const struct firmware *fw; const u8 *segment; int ret, remain, i = 0; - bt_dev_info(hdev, "ROME Downloading %s", config->fwname); + bt_dev_info(hdev, "QCA Downloading %s", config->fwname); ret = request_firmware(&fw, config->fwname, &hdev->dev); if (ret) { - BT_ERR("%s: Failed to request file: %s (%d)", hdev->name, - config->fwname, ret); + bt_dev_err(hdev, "QCA Failed to request file: %s (%d)", + config->fwname, ret); return ret; } - rome_tlv_check_data(config, fw); + qca_tlv_check_data(config, fw); segment = fw->data; remain = fw->size; @@ -290,7 +294,7 @@ static int rome_download_firmware(struct hci_dev *hdev, if (!remain || segsize < MAX_SIZE_PER_TLV_SEGMENT) config->dnld_mode = ROME_SKIP_EVT_NONE; - ret = rome_tlv_send_segment(hdev, segsize, segment, + ret = qca_tlv_send_segment(hdev, segsize, segment, config->dnld_mode); if (ret) break; @@ -317,8 +321,7 @@ int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr) HCI_VENDOR_PKT, HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { err = PTR_ERR(skb); - BT_ERR("%s: Change address command failed (%d)", - hdev->name, err); + bt_dev_err(hdev, "QCA Change address command failed (%d)", err); return err; } @@ -328,57 +331,65 @@ int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr) } EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome); -int qca_uart_setup_rome(struct hci_dev *hdev, uint8_t baudrate) +int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, + enum qca_btsoc_type soc_type, u32 soc_ver) { - u32 rome_ver = 0; struct rome_config config; int err; + u8 rom_ver; - BT_DBG("%s: ROME setup on UART", hdev->name); + bt_dev_dbg(hdev, "QCA setup on UART"); config.user_baud_rate = baudrate; - /* Get ROME version information */ - err = rome_patch_ver_req(hdev, &rome_ver); - if (err < 0 || rome_ver == 0) { - BT_ERR("%s: Failed to get version 0x%x", hdev->name, err); - return err; - } - - bt_dev_info(hdev, "ROME controller version 0x%08x", rome_ver); - /* Download rampatch file */ config.type = TLV_TYPE_PATCH; - snprintf(config.fwname, sizeof(config.fwname), "qca/rampatch_%08x.bin", - rome_ver); - err = rome_download_firmware(hdev, &config); + if (soc_type == QCA_WCN3990) { + /* Firmware files to download are based on ROM version. + * ROM version is derived from last two bytes of soc_ver. + */ + rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | + (soc_ver & 0x0000000f); + snprintf(config.fwname, sizeof(config.fwname), + "qca/crbtfw%02x.tlv", rom_ver); + } else { + snprintf(config.fwname, sizeof(config.fwname), + "qca/rampatch_%08x.bin", soc_ver); + } + + err = qca_download_firmware(hdev, &config); if (err < 0) { - BT_ERR("%s: Failed to download patch (%d)", hdev->name, err); + bt_dev_err(hdev, "QCA Failed to download patch (%d)", err); return err; } /* Download NVM configuration */ config.type = TLV_TYPE_NVM; - snprintf(config.fwname, sizeof(config.fwname), "qca/nvm_%08x.bin", - rome_ver); - err = rome_download_firmware(hdev, &config); + if (soc_type == QCA_WCN3990) + snprintf(config.fwname, sizeof(config.fwname), + "qca/crnv%02x.bin", rom_ver); + else + snprintf(config.fwname, sizeof(config.fwname), + "qca/nvm_%08x.bin", soc_ver); + + err = qca_download_firmware(hdev, &config); if (err < 0) { - BT_ERR("%s: Failed to download NVM (%d)", hdev->name, err); + bt_dev_err(hdev, "QCA Failed to download NVM (%d)", err); return err; } /* Perform HCI reset */ - err = rome_reset(hdev); + err = qca_send_reset(hdev); if (err < 0) { - BT_ERR("%s: Failed to run HCI_RESET (%d)", hdev->name, err); + bt_dev_err(hdev, "QCA Failed to run HCI_RESET (%d)", err); return err; } - bt_dev_info(hdev, "ROME setup on UART is completed"); + bt_dev_info(hdev, "QCA setup on UART is completed"); return 0; } -EXPORT_SYMBOL_GPL(qca_uart_setup_rome); +EXPORT_SYMBOL_GPL(qca_uart_setup); MODULE_AUTHOR("Ben Young Tae Kim <ytkim@qca.qualcomm.com>"); MODULE_DESCRIPTION("Bluetooth support for Qualcomm Atheros family ver " VERSION); diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h index 13d77fd873b6..0c01f375fe83 100644 --- a/drivers/bluetooth/btqca.h +++ b/drivers/bluetooth/btqca.h @@ -37,6 +37,9 @@ #define EDL_TAG_ID_HCI (17) #define EDL_TAG_ID_DEEP_SLEEP (27) +#define QCA_WCN3990_POWERON_PULSE 0xFC +#define QCA_WCN3990_POWEROFF_PULSE 0xC0 + enum qca_bardrate { QCA_BAUDRATE_115200 = 0, QCA_BAUDRATE_57600, @@ -124,10 +127,19 @@ struct tlv_type_hdr { __u8 data[0]; } __packed; +enum qca_btsoc_type { + QCA_INVALID = -1, + QCA_AR3002, + QCA_ROME, + QCA_WCN3990 +}; + #if IS_ENABLED(CONFIG_BT_QCA) int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr); -int qca_uart_setup_rome(struct hci_dev *hdev, uint8_t baudrate); +int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, + enum qca_btsoc_type soc_type, u32 soc_ver); +int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version); #else @@ -136,7 +148,13 @@ static inline int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdad return -EOPNOTSUPP; } -static inline int qca_uart_setup_rome(struct hci_dev *hdev, int speed) +static inline int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, + enum qca_btsoc_type soc_type, u32 soc_ver) +{ + return -EOPNOTSUPP; +} + +static inline int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version) { return -EOPNOTSUPP; } diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c index 437f080deaab..7f9ea8e4c1b2 100644 --- a/drivers/bluetooth/btrtl.c +++ b/drivers/bluetooth/btrtl.c @@ -34,9 +34,12 @@ #define RTL_ROM_LMP_8821A 0x8821 #define RTL_ROM_LMP_8761A 0x8761 #define RTL_ROM_LMP_8822B 0x8822 +#define RTL_CONFIG_MAGIC 0x8723ab55 #define IC_MATCH_FL_LMPSUBV (1 << 0) #define IC_MATCH_FL_HCIREV (1 << 1) +#define IC_MATCH_FL_HCIVER (1 << 2) +#define IC_MATCH_FL_HCIBUS (1 << 3) #define IC_INFO(lmps, hcir) \ .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_HCIREV, \ .lmp_subver = (lmps), \ @@ -46,49 +49,130 @@ struct id_table { __u16 match_flags; __u16 lmp_subver; __u16 hci_rev; + __u8 hci_ver; + __u8 hci_bus; bool config_needed; + bool has_rom_version; char *fw_name; char *cfg_name; }; +struct btrtl_device_info { + const struct id_table *ic_info; + u8 rom_version; + u8 *fw_data; + int fw_len; + u8 *cfg_data; + int cfg_len; +}; + static const struct id_table ic_id_table[] = { + { IC_MATCH_FL_LMPSUBV, RTL_ROM_LMP_8723A, 0x0, + .config_needed = false, + .has_rom_version = false, + .fw_name = "rtl_bt/rtl8723a_fw.bin", + .cfg_name = NULL }, + + { IC_MATCH_FL_LMPSUBV, RTL_ROM_LMP_3499, 0x0, + .config_needed = false, + .has_rom_version = false, + .fw_name = "rtl_bt/rtl8723a_fw.bin", + .cfg_name = NULL }, + + /* 8723BS */ + { .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_HCIREV | + IC_MATCH_FL_HCIVER | IC_MATCH_FL_HCIBUS, + .lmp_subver = RTL_ROM_LMP_8723B, + .hci_rev = 0xb, + .hci_ver = 6, + .hci_bus = HCI_UART, + .config_needed = true, + .has_rom_version = true, + .fw_name = "rtl_bt/rtl8723bs_fw.bin", + .cfg_name = "rtl_bt/rtl8723bs_config" }, + /* 8723B */ { IC_INFO(RTL_ROM_LMP_8723B, 0xb), .config_needed = false, + .has_rom_version = true, .fw_name = "rtl_bt/rtl8723b_fw.bin", - .cfg_name = "rtl_bt/rtl8723b_config.bin" }, + .cfg_name = "rtl_bt/rtl8723b_config" }, /* 8723D */ { IC_INFO(RTL_ROM_LMP_8723B, 0xd), .config_needed = true, + .has_rom_version = true, .fw_name = "rtl_bt/rtl8723d_fw.bin", - .cfg_name = "rtl_bt/rtl8723d_config.bin" }, + .cfg_name = "rtl_bt/rtl8723d_config" }, + + /* 8723DS */ + { .match_flags = IC_MATCH_FL_LMPSUBV | IC_MATCH_FL_HCIREV | + IC_MATCH_FL_HCIVER | IC_MATCH_FL_HCIBUS, + .lmp_subver = RTL_ROM_LMP_8723B, + .hci_rev = 0xd, + .hci_ver = 8, + .hci_bus = HCI_UART, + .config_needed = true, + .has_rom_version = true, + .fw_name = "rtl_bt/rtl8723ds_fw.bin", + .cfg_name = "rtl_bt/rtl8723ds_config" }, /* 8821A */ { IC_INFO(RTL_ROM_LMP_8821A, 0xa), .config_needed = false, + .has_rom_version = true, .fw_name = "rtl_bt/rtl8821a_fw.bin", - .cfg_name = "rtl_bt/rtl8821a_config.bin" }, + .cfg_name = "rtl_bt/rtl8821a_config" }, /* 8821C */ { IC_INFO(RTL_ROM_LMP_8821A, 0xc), .config_needed = false, + .has_rom_version = true, .fw_name = "rtl_bt/rtl8821c_fw.bin", - .cfg_name = "rtl_bt/rtl8821c_config.bin" }, + .cfg_name = "rtl_bt/rtl8821c_config" }, /* 8761A */ { IC_MATCH_FL_LMPSUBV, RTL_ROM_LMP_8761A, 0x0, .config_needed = false, + .has_rom_version = true, .fw_name = "rtl_bt/rtl8761a_fw.bin", - .cfg_name = "rtl_bt/rtl8761a_config.bin" }, + .cfg_name = "rtl_bt/rtl8761a_config" }, /* 8822B */ { IC_INFO(RTL_ROM_LMP_8822B, 0xb), .config_needed = true, + .has_rom_version = true, .fw_name = "rtl_bt/rtl8822b_fw.bin", - .cfg_name = "rtl_bt/rtl8822b_config.bin" }, + .cfg_name = "rtl_bt/rtl8822b_config" }, }; +static const struct id_table *btrtl_match_ic(u16 lmp_subver, u16 hci_rev, + u8 hci_ver, u8 hci_bus) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(ic_id_table); i++) { + if ((ic_id_table[i].match_flags & IC_MATCH_FL_LMPSUBV) && + (ic_id_table[i].lmp_subver != lmp_subver)) + continue; + if ((ic_id_table[i].match_flags & IC_MATCH_FL_HCIREV) && + (ic_id_table[i].hci_rev != hci_rev)) + continue; + if ((ic_id_table[i].match_flags & IC_MATCH_FL_HCIVER) && + (ic_id_table[i].hci_ver != hci_ver)) + continue; + if ((ic_id_table[i].match_flags & IC_MATCH_FL_HCIBUS) && + (ic_id_table[i].hci_bus != hci_bus)) + continue; + + break; + } + if (i >= ARRAY_SIZE(ic_id_table)) + return NULL; + + return &ic_id_table[i]; +} + static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version) { struct rtl_rom_version_evt *rom_version; @@ -97,20 +181,20 @@ static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version) /* 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)); + rtl_dev_err(hdev, "Read ROM version failed (%ld)\n", + PTR_ERR(skb)); return PTR_ERR(skb); } if (skb->len != sizeof(*rom_version)) { - BT_ERR("%s: RTL version event length mismatch", hdev->name); + rtl_dev_err(hdev, "RTL version event length mismatch\n"); kfree_skb(skb); return -EIO; } rom_version = (struct rtl_rom_version_evt *)skb->data; - bt_dev_info(hdev, "rom_version status=%x version=%x", - rom_version->status, rom_version->version); + rtl_dev_info(hdev, "rom_version status=%x version=%x\n", + rom_version->status, rom_version->version); *version = rom_version->version; @@ -118,16 +202,16 @@ static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version) return 0; } -static int rtlbt_parse_firmware(struct hci_dev *hdev, u16 lmp_subver, - const struct firmware *fw, +static int rtlbt_parse_firmware(struct hci_dev *hdev, + struct btrtl_device_info *btrtl_dev, unsigned char **_buf) { const u8 extension_sig[] = { 0x51, 0x04, 0xfd, 0x77 }; struct rtl_epatch_header *epatch_info; unsigned char *buf; - int i, ret, len; + int i, len; size_t min_size; - u8 opcode, length, data, rom_version = 0; + u8 opcode, length, data; int project_id = -1; const unsigned char *fwptr, *chip_id_base; const unsigned char *patch_length_base, *patch_offset_base; @@ -146,17 +230,13 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev, u16 lmp_subver, { RTL_ROM_LMP_8821A, 10 }, /* 8821C */ }; - 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) + if (btrtl_dev->fw_len < min_size) return -EINVAL; - fwptr = fw->data + fw->size - sizeof(extension_sig); + fwptr = btrtl_dev->fw_data + btrtl_dev->fw_len - sizeof(extension_sig); if (memcmp(fwptr, extension_sig, sizeof(extension_sig)) != 0) { - BT_ERR("%s: extension section signature mismatch", hdev->name); + rtl_dev_err(hdev, "extension section signature mismatch\n"); return -EINVAL; } @@ -166,7 +246,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev, u16 lmp_subver, * 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)) { + while (fwptr >= btrtl_dev->fw_data + (sizeof(*epatch_info) + 3)) { opcode = *--fwptr; length = *--fwptr; data = *--fwptr; @@ -177,8 +257,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev, u16 lmp_subver, break; if (length == 0) { - BT_ERR("%s: found instruction with length 0", - hdev->name); + rtl_dev_err(hdev, "found instruction with length 0\n"); return -EINVAL; } @@ -191,7 +270,7 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev, u16 lmp_subver, } if (project_id < 0) { - BT_ERR("%s: failed to find version instruction", hdev->name); + rtl_dev_err(hdev, "failed to find version instruction\n"); return -EINVAL; } @@ -202,19 +281,21 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev, u16 lmp_subver, } if (i >= ARRAY_SIZE(project_id_to_lmp_subver)) { - BT_ERR("%s: unknown project id %d", hdev->name, project_id); + rtl_dev_err(hdev, "unknown project id %d\n", project_id); return -EINVAL; } - if (lmp_subver != project_id_to_lmp_subver[i].lmp_subver) { - BT_ERR("%s: firmware is for %x but this is a %x", hdev->name, - project_id_to_lmp_subver[i].lmp_subver, lmp_subver); + if (btrtl_dev->ic_info->lmp_subver != + project_id_to_lmp_subver[i].lmp_subver) { + rtl_dev_err(hdev, "firmware is for %x but this is a %x\n", + project_id_to_lmp_subver[i].lmp_subver, + btrtl_dev->ic_info->lmp_subver); return -EINVAL; } - epatch_info = (struct rtl_epatch_header *)fw->data; + epatch_info = (struct rtl_epatch_header *)btrtl_dev->fw_data; if (memcmp(epatch_info->signature, RTL_EPATCH_SIGNATURE, 8) != 0) { - BT_ERR("%s: bad EPATCH signature", hdev->name); + rtl_dev_err(hdev, "bad EPATCH signature\n"); return -EINVAL; } @@ -229,16 +310,16 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev, u16 lmp_subver, * Find the right patch for this chip. */ min_size += 8 * num_patches; - if (fw->size < min_size) + if (btrtl_dev->fw_len < min_size) return -EINVAL; - chip_id_base = fw->data + sizeof(struct rtl_epatch_header); + chip_id_base = btrtl_dev->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) { + if (chip_id == btrtl_dev->rom_version + 1) { patch_length = get_unaligned_le16(patch_length_base + (i * sizeof(u16))); patch_offset = get_unaligned_le32(patch_offset_base + @@ -248,21 +329,22 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev, u16 lmp_subver, } if (!patch_offset) { - BT_ERR("%s: didn't find patch for chip id %d", - hdev->name, rom_version); + rtl_dev_err(hdev, "didn't find patch for chip id %d", + btrtl_dev->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) + if (btrtl_dev->fw_len < 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); + buf = kmemdup(btrtl_dev->fw_data + patch_offset, patch_length, + GFP_KERNEL); if (!buf) return -ENOMEM; @@ -301,15 +383,14 @@ static int rtl_download_firmware(struct hci_dev *hdev, 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)); + rtl_dev_err(hdev, "download fw command failed (%ld)\n", + 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); + rtl_dev_err(hdev, "download fw event length mismatch\n"); kfree_skb(skb); ret = -EIO; goto out; @@ -324,12 +405,12 @@ out: return ret; } -static int rtl_load_config(struct hci_dev *hdev, const char *name, u8 **buff) +static int rtl_load_file(struct hci_dev *hdev, const char *name, u8 **buff) { const struct firmware *fw; int ret; - bt_dev_info(hdev, "rtl: loading %s", name); + rtl_dev_info(hdev, "rtl: loading %s\n", name); ret = request_firmware(&fw, name, &hdev->dev); if (ret < 0) return ret; @@ -343,96 +424,37 @@ static int rtl_load_config(struct hci_dev *hdev, const char *name, u8 **buff) return ret; } -static int btrtl_setup_rtl8723a(struct hci_dev *hdev) +static int btrtl_setup_rtl8723a(struct hci_dev *hdev, + struct btrtl_device_info *btrtl_dev) { - const struct firmware *fw; - int ret; - - bt_dev_info(hdev, "rtl: loading rtl_bt/rtl8723a_fw.bin"); - 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; - } + if (btrtl_dev->fw_len < 8) + return -EINVAL; /* 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; + if (!memcmp(btrtl_dev->fw_data, RTL_EPATCH_SIGNATURE, 8)) { + rtl_dev_err(hdev, "unexpected EPATCH signature!\n"); + return -EINVAL; } - ret = rtl_download_firmware(hdev, fw->data, fw->size); - -out: - release_firmware(fw); - return ret; + return rtl_download_firmware(hdev, btrtl_dev->fw_data, + btrtl_dev->fw_len); } -static int btrtl_setup_rtl8723b(struct hci_dev *hdev, u16 hci_rev, - u16 lmp_subver) +static int btrtl_setup_rtl8723b(struct hci_dev *hdev, + struct btrtl_device_info *btrtl_dev) { unsigned char *fw_data = NULL; - const struct firmware *fw; int ret; - int cfg_sz; - u8 *cfg_buff = NULL; u8 *tbuff; - char *cfg_name = NULL; - char *fw_name = NULL; - int i; - for (i = 0; i < ARRAY_SIZE(ic_id_table); i++) { - if ((ic_id_table[i].match_flags & IC_MATCH_FL_LMPSUBV) && - (ic_id_table[i].lmp_subver != lmp_subver)) - continue; - if ((ic_id_table[i].match_flags & IC_MATCH_FL_HCIREV) && - (ic_id_table[i].hci_rev != hci_rev)) - continue; - - break; - } - - if (i >= ARRAY_SIZE(ic_id_table)) { - BT_ERR("%s: unknown IC info, lmp subver %04x, hci rev %04x", - hdev->name, lmp_subver, hci_rev); - return -EINVAL; - } - - cfg_name = ic_id_table[i].cfg_name; - - if (cfg_name) { - cfg_sz = rtl_load_config(hdev, cfg_name, &cfg_buff); - if (cfg_sz < 0) { - cfg_sz = 0; - if (ic_id_table[i].config_needed) - BT_ERR("Necessary config file %s not found\n", - cfg_name); - } - } else - cfg_sz = 0; - - fw_name = ic_id_table[i].fw_name; - bt_dev_info(hdev, "rtl: loading %s", fw_name); - ret = request_firmware(&fw, fw_name, &hdev->dev); - if (ret < 0) { - BT_ERR("%s: Failed to load %s", hdev->name, fw_name); - goto err_req_fw; - } - - ret = rtlbt_parse_firmware(hdev, lmp_subver, fw, &fw_data); + ret = rtlbt_parse_firmware(hdev, btrtl_dev, &fw_data); if (ret < 0) goto out; - if (cfg_sz) { - tbuff = kzalloc(ret + cfg_sz, GFP_KERNEL); + if (btrtl_dev->cfg_len > 0) { + tbuff = kzalloc(ret + btrtl_dev->cfg_len, GFP_KERNEL); if (!tbuff) { ret = -ENOMEM; goto out; @@ -441,22 +463,18 @@ static int btrtl_setup_rtl8723b(struct hci_dev *hdev, u16 hci_rev, memcpy(tbuff, fw_data, ret); kfree(fw_data); - memcpy(tbuff + ret, cfg_buff, cfg_sz); - ret += cfg_sz; + memcpy(tbuff + ret, btrtl_dev->cfg_data, btrtl_dev->cfg_len); + ret += btrtl_dev->cfg_len; fw_data = tbuff; } - bt_dev_info(hdev, "cfg_sz %d, total size %d", cfg_sz, ret); + rtl_dev_info(hdev, "cfg_sz %d, total sz %d\n", btrtl_dev->cfg_len, ret); ret = rtl_download_firmware(hdev, fw_data, ret); out: - release_firmware(fw); kfree(fw_data); -err_req_fw: - if (cfg_sz) - kfree(cfg_buff); return ret; } @@ -467,14 +485,13 @@ static struct sk_buff *btrtl_read_local_version(struct hci_dev *hdev) 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)); + rtl_dev_err(hdev, "HCI_OP_READ_LOCAL_VERSION failed (%ld)\n", + 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); + rtl_dev_err(hdev, "HCI_OP_READ_LOCAL_VERSION event length mismatch\n"); kfree_skb(skb); return ERR_PTR(-EIO); } @@ -482,49 +499,264 @@ static struct sk_buff *btrtl_read_local_version(struct hci_dev *hdev) return skb; } -int btrtl_setup_realtek(struct hci_dev *hdev) +void btrtl_free(struct btrtl_device_info *btrtl_dev) { + kfree(btrtl_dev->fw_data); + kfree(btrtl_dev->cfg_data); + kfree(btrtl_dev); +} +EXPORT_SYMBOL_GPL(btrtl_free); + +struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev, + const char *postfix) +{ + struct btrtl_device_info *btrtl_dev; struct sk_buff *skb; struct hci_rp_read_local_version *resp; + char cfg_name[40]; u16 hci_rev, lmp_subver; + u8 hci_ver; + int ret; + + btrtl_dev = kzalloc(sizeof(*btrtl_dev), GFP_KERNEL); + if (!btrtl_dev) { + ret = -ENOMEM; + goto err_alloc; + } skb = btrtl_read_local_version(hdev); - if (IS_ERR(skb)) - return -PTR_ERR(skb); + if (IS_ERR(skb)) { + ret = PTR_ERR(skb); + goto err_free; + } resp = (struct hci_rp_read_local_version *)skb->data; - bt_dev_info(hdev, "rtl: examining hci_ver=%02x hci_rev=%04x " - "lmp_ver=%02x lmp_subver=%04x", - resp->hci_ver, resp->hci_rev, - resp->lmp_ver, resp->lmp_subver); + rtl_dev_info(hdev, "rtl: examining hci_ver=%02x hci_rev=%04x lmp_ver=%02x lmp_subver=%04x\n", + resp->hci_ver, resp->hci_rev, + resp->lmp_ver, resp->lmp_subver); + hci_ver = resp->hci_ver; hci_rev = le16_to_cpu(resp->hci_rev); lmp_subver = le16_to_cpu(resp->lmp_subver); kfree_skb(skb); + btrtl_dev->ic_info = btrtl_match_ic(lmp_subver, hci_rev, hci_ver, + hdev->bus); + + if (!btrtl_dev->ic_info) { + rtl_dev_err(hdev, "rtl: unknown IC info, lmp subver %04x, hci rev %04x, hci ver %04x", + lmp_subver, hci_rev, hci_ver); + ret = -EINVAL; + goto err_free; + } + + if (btrtl_dev->ic_info->has_rom_version) { + ret = rtl_read_rom_version(hdev, &btrtl_dev->rom_version); + if (ret) + goto err_free; + } + + btrtl_dev->fw_len = rtl_load_file(hdev, btrtl_dev->ic_info->fw_name, + &btrtl_dev->fw_data); + if (btrtl_dev->fw_len < 0) { + rtl_dev_err(hdev, "firmware file %s not found\n", + btrtl_dev->ic_info->fw_name); + ret = btrtl_dev->fw_len; + goto err_free; + } + + if (btrtl_dev->ic_info->cfg_name) { + if (postfix) { + snprintf(cfg_name, sizeof(cfg_name), "%s-%s.bin", + btrtl_dev->ic_info->cfg_name, postfix); + } else { + snprintf(cfg_name, sizeof(cfg_name), "%s.bin", + btrtl_dev->ic_info->cfg_name); + } + btrtl_dev->cfg_len = rtl_load_file(hdev, cfg_name, + &btrtl_dev->cfg_data); + if (btrtl_dev->ic_info->config_needed && + btrtl_dev->cfg_len <= 0) { + rtl_dev_err(hdev, "mandatory config file %s not found\n", + btrtl_dev->ic_info->cfg_name); + ret = btrtl_dev->cfg_len; + goto err_free; + } + } + + return btrtl_dev; + +err_free: + btrtl_free(btrtl_dev); +err_alloc: + return ERR_PTR(ret); +} +EXPORT_SYMBOL_GPL(btrtl_initialize); + +int btrtl_download_firmware(struct hci_dev *hdev, + struct btrtl_device_info *btrtl_dev) +{ /* 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) { + switch (btrtl_dev->ic_info->lmp_subver) { case RTL_ROM_LMP_8723A: case RTL_ROM_LMP_3499: - return btrtl_setup_rtl8723a(hdev); + return btrtl_setup_rtl8723a(hdev, btrtl_dev); case RTL_ROM_LMP_8723B: case RTL_ROM_LMP_8821A: case RTL_ROM_LMP_8761A: case RTL_ROM_LMP_8822B: - return btrtl_setup_rtl8723b(hdev, hci_rev, lmp_subver); + return btrtl_setup_rtl8723b(hdev, btrtl_dev); default: - bt_dev_info(hdev, "rtl: assuming no firmware upload needed"); + rtl_dev_info(hdev, "rtl: assuming no firmware upload needed\n"); return 0; } } +EXPORT_SYMBOL_GPL(btrtl_download_firmware); + +int btrtl_setup_realtek(struct hci_dev *hdev) +{ + struct btrtl_device_info *btrtl_dev; + int ret; + + btrtl_dev = btrtl_initialize(hdev, NULL); + if (IS_ERR(btrtl_dev)) + return PTR_ERR(btrtl_dev); + + ret = btrtl_download_firmware(hdev, btrtl_dev); + + btrtl_free(btrtl_dev); + + return ret; +} EXPORT_SYMBOL_GPL(btrtl_setup_realtek); +static unsigned int btrtl_convert_baudrate(u32 device_baudrate) +{ + switch (device_baudrate) { + case 0x0252a00a: + return 230400; + + case 0x05f75004: + return 921600; + + case 0x00005004: + return 1000000; + + case 0x04928002: + case 0x01128002: + return 1500000; + + case 0x00005002: + return 2000000; + + case 0x0000b001: + return 2500000; + + case 0x04928001: + return 3000000; + + case 0x052a6001: + return 3500000; + + case 0x00005001: + return 4000000; + + case 0x0252c014: + default: + return 115200; + } +} + +int btrtl_get_uart_settings(struct hci_dev *hdev, + struct btrtl_device_info *btrtl_dev, + unsigned int *controller_baudrate, + u32 *device_baudrate, bool *flow_control) +{ + struct rtl_vendor_config *config; + struct rtl_vendor_config_entry *entry; + int i, total_data_len; + bool found = false; + + total_data_len = btrtl_dev->cfg_len - sizeof(*config); + if (total_data_len <= 0) { + rtl_dev_warn(hdev, "no config loaded\n"); + return -EINVAL; + } + + config = (struct rtl_vendor_config *)btrtl_dev->cfg_data; + if (le32_to_cpu(config->signature) != RTL_CONFIG_MAGIC) { + rtl_dev_err(hdev, "invalid config magic\n"); + return -EINVAL; + } + + if (total_data_len < le16_to_cpu(config->total_len)) { + rtl_dev_err(hdev, "config is too short\n"); + return -EINVAL; + } + + for (i = 0; i < total_data_len; ) { + entry = ((void *)config->entry) + i; + + switch (le16_to_cpu(entry->offset)) { + case 0xc: + if (entry->len < sizeof(*device_baudrate)) { + rtl_dev_err(hdev, "invalid UART config entry\n"); + return -EINVAL; + } + + *device_baudrate = get_unaligned_le32(entry->data); + *controller_baudrate = btrtl_convert_baudrate( + *device_baudrate); + + if (entry->len >= 13) + *flow_control = !!(entry->data[12] & BIT(2)); + else + *flow_control = false; + + found = true; + break; + + default: + rtl_dev_dbg(hdev, "skipping config entry 0x%x (len %u)\n", + le16_to_cpu(entry->offset), entry->len); + break; + }; + + i += sizeof(*entry) + entry->len; + } + + if (!found) { + rtl_dev_err(hdev, "no UART config entry found\n"); + return -ENOENT; + } + + rtl_dev_dbg(hdev, "device baudrate = 0x%08x\n", *device_baudrate); + rtl_dev_dbg(hdev, "controller baudrate = %u\n", *controller_baudrate); + rtl_dev_dbg(hdev, "flow control %d\n", *flow_control); + + return 0; +} +EXPORT_SYMBOL_GPL(btrtl_get_uart_settings); + MODULE_AUTHOR("Daniel Drake <drake@endlessm.com>"); MODULE_DESCRIPTION("Bluetooth support for Realtek devices ver " VERSION); MODULE_VERSION(VERSION); MODULE_LICENSE("GPL"); +MODULE_FIRMWARE("rtl_bt/rtl8723a_fw.bin"); +MODULE_FIRMWARE("rtl_bt/rtl8723b_fw.bin"); +MODULE_FIRMWARE("rtl_bt/rtl8723b_config.bin"); +MODULE_FIRMWARE("rtl_bt/rtl8723bs_fw.bin"); +MODULE_FIRMWARE("rtl_bt/rtl8723bs_config.bin"); +MODULE_FIRMWARE("rtl_bt/rtl8723ds_fw.bin"); +MODULE_FIRMWARE("rtl_bt/rtl8723ds_config.bin"); +MODULE_FIRMWARE("rtl_bt/rtl8761a_fw.bin"); +MODULE_FIRMWARE("rtl_bt/rtl8761a_config.bin"); +MODULE_FIRMWARE("rtl_bt/rtl8821a_fw.bin"); +MODULE_FIRMWARE("rtl_bt/rtl8821a_config.bin"); +MODULE_FIRMWARE("rtl_bt/rtl8822b_fw.bin"); +MODULE_FIRMWARE("rtl_bt/rtl8822b_config.bin"); diff --git a/drivers/bluetooth/btrtl.h b/drivers/bluetooth/btrtl.h index 38ffe4890cd1..f5e36f3993a8 100644 --- a/drivers/bluetooth/btrtl.h +++ b/drivers/bluetooth/btrtl.h @@ -17,6 +17,13 @@ #define RTL_FRAG_LEN 252 +#define rtl_dev_err(dev, fmt, ...) bt_dev_err(dev, "RTL: " fmt, ##__VA_ARGS__) +#define rtl_dev_warn(dev, fmt, ...) bt_dev_warn(dev, "RTL: " fmt, ##__VA_ARGS__) +#define rtl_dev_info(dev, fmt, ...) bt_dev_info(dev, "RTL: " fmt, ##__VA_ARGS__) +#define rtl_dev_dbg(dev, fmt, ...) bt_dev_dbg(dev, "RTL: " fmt, ##__VA_ARGS__) + +struct btrtl_device_info; + struct rtl_download_cmd { __u8 index; __u8 data[RTL_FRAG_LEN]; @@ -38,15 +45,61 @@ struct rtl_epatch_header { __le16 num_patches; } __packed; +struct rtl_vendor_config_entry { + __le16 offset; + __u8 len; + __u8 data[0]; +} __packed; + +struct rtl_vendor_config { + __le32 signature; + __le16 total_len; + struct rtl_vendor_config_entry entry[0]; +} __packed; + #if IS_ENABLED(CONFIG_BT_RTL) +struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev, + const char *postfix); +void btrtl_free(struct btrtl_device_info *btrtl_dev); +int btrtl_download_firmware(struct hci_dev *hdev, + struct btrtl_device_info *btrtl_dev); int btrtl_setup_realtek(struct hci_dev *hdev); +int btrtl_get_uart_settings(struct hci_dev *hdev, + struct btrtl_device_info *btrtl_dev, + unsigned int *controller_baudrate, + u32 *device_baudrate, bool *flow_control); #else +static inline struct btrtl_device_info *btrtl_initialize(struct hci_dev *hdev, + const char *postfix) +{ + return ERR_PTR(-EOPNOTSUPP); +} + +static inline void btrtl_free(struct btrtl_device_info *btrtl_dev) +{ +} + +static inline int btrtl_download_firmware(struct hci_dev *hdev, + struct btrtl_device_info *btrtl_dev) +{ + return -EOPNOTSUPP; +} + static inline int btrtl_setup_realtek(struct hci_dev *hdev) { return -EOPNOTSUPP; } +static inline int btrtl_get_uart_settings(struct hci_dev *hdev, + struct btrtl_device_info *btrtl_dev, + unsigned int *controller_baudrate, + u32 *device_baudrate, + bool *flow_control) +{ + return -ENOENT; +} + #endif diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index f73a27ea28cc..cd2e5cf14ea5 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -374,6 +374,7 @@ static const struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x7392, 0xa611), .driver_info = BTUSB_REALTEK }, /* Additional Realtek 8723DE Bluetooth devices */ + { USB_DEVICE(0x0bda, 0xb009), .driver_info = BTUSB_REALTEK }, { USB_DEVICE(0x2ff8, 0xb011), .driver_info = BTUSB_REALTEK }, /* Additional Realtek 8821AE Bluetooth devices */ @@ -509,9 +510,10 @@ static inline void btusb_free_frags(struct btusb_data *data) static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) { struct sk_buff *skb; + unsigned long flags; int err = 0; - spin_lock(&data->rxlock); + spin_lock_irqsave(&data->rxlock, flags); skb = data->evt_skb; while (count) { @@ -556,7 +558,7 @@ static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) } data->evt_skb = skb; - spin_unlock(&data->rxlock); + spin_unlock_irqrestore(&data->rxlock, flags); return err; } @@ -564,9 +566,10 @@ static int btusb_recv_intr(struct btusb_data *data, void *buffer, int count) static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) { struct sk_buff *skb; + unsigned long flags; int err = 0; - spin_lock(&data->rxlock); + spin_lock_irqsave(&data->rxlock, flags); skb = data->acl_skb; while (count) { @@ -613,7 +616,7 @@ static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) } data->acl_skb = skb; - spin_unlock(&data->rxlock); + spin_unlock_irqrestore(&data->rxlock, flags); return err; } @@ -621,9 +624,10 @@ static int btusb_recv_bulk(struct btusb_data *data, void *buffer, int count) static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) { struct sk_buff *skb; + unsigned long flags; int err = 0; - spin_lock(&data->rxlock); + spin_lock_irqsave(&data->rxlock, flags); skb = data->sco_skb; while (count) { @@ -668,7 +672,7 @@ static int btusb_recv_isoc(struct btusb_data *data, void *buffer, int count) } data->sco_skb = skb; - spin_unlock(&data->rxlock); + spin_unlock_irqrestore(&data->rxlock, flags); return err; } @@ -1066,6 +1070,7 @@ static void btusb_tx_complete(struct urb *urb) struct sk_buff *skb = urb->context; struct hci_dev *hdev = (struct hci_dev *)skb->dev; struct btusb_data *data = hci_get_drvdata(hdev); + unsigned long flags; BT_DBG("%s urb %p status %d count %d", hdev->name, urb, urb->status, urb->actual_length); @@ -1079,9 +1084,9 @@ static void btusb_tx_complete(struct urb *urb) hdev->stat.err_tx++; done: - spin_lock(&data->txlock); + spin_lock_irqsave(&data->txlock, flags); data->tx_in_flight--; - spin_unlock(&data->txlock); + spin_unlock_irqrestore(&data->txlock, flags); kfree(urb->setup_packet); @@ -1593,13 +1598,13 @@ static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, ret = request_firmware(&fw, fwname, &hdev->dev); if (ret < 0) { if (ret == -EINVAL) { - BT_ERR("%s Intel firmware file request failed (%d)", - hdev->name, ret); + bt_dev_err(hdev, "Intel firmware file request failed (%d)", + ret); return NULL; } - BT_ERR("%s failed to open Intel firmware file: %s(%d)", - hdev->name, fwname, ret); + bt_dev_err(hdev, "failed to open Intel firmware file: %s (%d)", + fwname, ret); /* If the correct firmware patch file is not found, use the * default firmware patch file instead @@ -1607,8 +1612,8 @@ static const struct firmware *btusb_setup_intel_get_fw(struct hci_dev *hdev, snprintf(fwname, sizeof(fwname), "intel/ibt-hw-%x.%x.bseq", ver->hw_platform, ver->hw_variant); if (request_firmware(&fw, fwname, &hdev->dev) < 0) { - BT_ERR("%s failed to open default Intel fw file: %s", - hdev->name, fwname); + bt_dev_err(hdev, "failed to open default fw file: %s", + fwname); return NULL; } } @@ -1637,7 +1642,7 @@ static int btusb_setup_intel_patching(struct hci_dev *hdev, * process. */ if (remain > HCI_COMMAND_HDR_SIZE && *fw_ptr[0] != 0x01) { - BT_ERR("%s Intel fw corrupted: invalid cmd read", hdev->name); + bt_dev_err(hdev, "Intel fw corrupted: invalid cmd read"); return -EINVAL; } (*fw_ptr)++; @@ -1651,7 +1656,7 @@ static int btusb_setup_intel_patching(struct hci_dev *hdev, * of command parameter. If not, the firmware file is corrupted. */ if (remain < cmd->plen) { - BT_ERR("%s Intel fw corrupted: invalid cmd len", hdev->name); + bt_dev_err(hdev, "Intel fw corrupted: invalid cmd len"); return -EFAULT; } @@ -1684,8 +1689,7 @@ static int btusb_setup_intel_patching(struct hci_dev *hdev, remain -= sizeof(*evt); if (remain < evt->plen) { - BT_ERR("%s Intel fw corrupted: invalid evt len", - hdev->name); + bt_dev_err(hdev, "Intel fw corrupted: invalid evt len"); return -EFAULT; } @@ -1699,15 +1703,15 @@ static int btusb_setup_intel_patching(struct hci_dev *hdev, * file is corrupted. */ if (!evt || !evt_param || remain < 0) { - BT_ERR("%s Intel fw corrupted: invalid evt read", hdev->name); + bt_dev_err(hdev, "Intel fw corrupted: invalid evt read"); return -EFAULT; } skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cmd->opcode), cmd->plen, cmd_param, evt->evt, HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { - BT_ERR("%s sending Intel patch command (0x%4.4x) failed (%ld)", - hdev->name, cmd->opcode, PTR_ERR(skb)); + bt_dev_err(hdev, "sending Intel patch command (0x%4.4x) failed (%ld)", + cmd->opcode, PTR_ERR(skb)); return PTR_ERR(skb); } @@ -1716,15 +1720,15 @@ static int btusb_setup_intel_patching(struct hci_dev *hdev, * the contents of the event. */ if (skb->len != evt->plen) { - BT_ERR("%s mismatch event length (opcode 0x%4.4x)", hdev->name, - le16_to_cpu(cmd->opcode)); + bt_dev_err(hdev, "mismatch event length (opcode 0x%4.4x)", + le16_to_cpu(cmd->opcode)); kfree_skb(skb); return -EFAULT; } if (memcmp(skb->data, evt_param, evt->plen)) { - BT_ERR("%s mismatch event parameter (opcode 0x%4.4x)", - hdev->name, le16_to_cpu(cmd->opcode)); + bt_dev_err(hdev, "mismatch event parameter (opcode 0x%4.4x)", + le16_to_cpu(cmd->opcode)); kfree_skb(skb); return -EFAULT; } @@ -1753,8 +1757,8 @@ static int btusb_setup_intel(struct hci_dev *hdev) */ skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { - BT_ERR("%s sending initial HCI reset command failed (%ld)", - hdev->name, PTR_ERR(skb)); + bt_dev_err(hdev, "sending initial HCI reset command failed (%ld)", + PTR_ERR(skb)); return PTR_ERR(skb); } kfree_skb(skb); @@ -1890,7 +1894,7 @@ static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) struct hci_event_hdr *hdr; struct hci_ev_cmd_complete *evt; - skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC); + skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); if (!skb) return -ENOMEM; @@ -2084,8 +2088,8 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) * for now only accept this single value. */ if (ver.hw_platform != 0x37) { - BT_ERR("%s: Unsupported Intel hardware platform (%u)", - hdev->name, ver.hw_platform); + bt_dev_err(hdev, "Unsupported Intel hardware platform (%u)", + ver.hw_platform); return -EINVAL; } @@ -2104,8 +2108,8 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) case 0x14: /* QnJ, IcP */ break; default: - BT_ERR("%s: Unsupported Intel hardware variant (%u)", - hdev->name, ver.hw_variant); + bt_dev_err(hdev, "Unsupported Intel hardware variant (%u)", + ver.hw_variant); return -EINVAL; } @@ -2134,8 +2138,8 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) * choice is to return an error and abort the device initialization. */ if (ver.fw_variant != 0x06) { - BT_ERR("%s: Unsupported Intel firmware variant (%u)", - hdev->name, ver.fw_variant); + bt_dev_err(hdev, "Unsupported Intel firmware variant (%u)", + ver.fw_variant); return -ENODEV; } @@ -2151,8 +2155,8 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) * that this bootloader does not send them, then abort the setup. */ if (params.limited_cce != 0x00) { - BT_ERR("%s: Unsupported Intel firmware loading method (%u)", - hdev->name, params.limited_cce); + bt_dev_err(hdev, "Unsupported Intel firmware loading method (%u)", + params.limited_cce); return -EINVAL; } @@ -2202,14 +2206,13 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) le16_to_cpu(ver.fw_revision)); break; default: - BT_ERR("%s: Unsupported Intel firmware naming", hdev->name); + bt_dev_err(hdev, "Unsupported Intel firmware naming"); return -EINVAL; } err = request_firmware(&fw, fwname, &hdev->dev); if (err < 0) { - BT_ERR("%s: Failed to load Intel firmware file (%d)", - hdev->name, err); + bt_dev_err(hdev, "Failed to load Intel firmware file (%d)", err); return err; } @@ -2235,13 +2238,13 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) le16_to_cpu(ver.fw_revision)); break; default: - BT_ERR("%s: Unsupported Intel firmware naming", hdev->name); + bt_dev_err(hdev, "Unsupported Intel firmware naming"); return -EINVAL; } if (fw->size < 644) { - BT_ERR("%s: Invalid size of firmware file (%zu)", - hdev->name, fw->size); + bt_dev_err(hdev, "Invalid size of firmware file (%zu)", + fw->size); err = -EBADF; goto done; } @@ -2272,18 +2275,18 @@ static int btusb_setup_intel_new(struct hci_dev *hdev) TASK_INTERRUPTIBLE, msecs_to_jiffies(5000)); if (err == -EINTR) { - BT_ERR("%s: Firmware loading interrupted", hdev->name); + bt_dev_err(hdev, "Firmware loading interrupted"); goto done; } if (err) { - BT_ERR("%s: Firmware loading timeout", hdev->name); + bt_dev_err(hdev, "Firmware loading timeout"); err = -ETIMEDOUT; goto done; } if (test_bit(BTUSB_FIRMWARE_FAILED, &data->flags)) { - BT_ERR("%s: Firmware loading failed", hdev->name); + bt_dev_err(hdev, "Firmware loading failed"); err = -ENOEXEC; goto done; } @@ -2322,12 +2325,12 @@ done: msecs_to_jiffies(1000)); if (err == -EINTR) { - BT_ERR("%s: Device boot interrupted", hdev->name); + bt_dev_err(hdev, "Device boot interrupted"); return -EINTR; } if (err) { - BT_ERR("%s: Device boot timeout", hdev->name); + bt_dev_err(hdev, "Device boot timeout"); return -ETIMEDOUT; } @@ -2364,6 +2367,22 @@ static int btusb_shutdown_intel(struct hci_dev *hdev) struct sk_buff *skb; long ret; + /* In the shutdown sequence where Bluetooth is turned off followed + * by WiFi being turned off, turning WiFi back on causes issue with + * the RF calibration. + * + * To ensure that any RF activity has been stopped, issue HCI Reset + * command to clear all ongoing activity including advertising, + * scanning etc. + */ + skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + ret = PTR_ERR(skb); + bt_dev_err(hdev, "HCI reset during shutdown failed"); + return ret; + } + kfree_skb(skb); + /* Some platforms have an issue with BT LED when the interface is * down or BT radio is turned off, which takes 5 seconds to BT LED * goes off. This command turns off the BT LED immediately. @@ -2371,8 +2390,7 @@ static int btusb_shutdown_intel(struct hci_dev *hdev) skb = __hci_cmd_sync(hdev, 0xfc3f, 0, NULL, HCI_INIT_TIMEOUT); if (IS_ERR(skb)) { ret = PTR_ERR(skb); - BT_ERR("%s: turning off Intel device LED failed (%ld)", - hdev->name, ret); + bt_dev_err(hdev, "turning off Intel device LED failed"); return ret; } kfree_skb(skb); diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c index 6a8d0d06aba7..63c0dcbc4914 100644 --- a/drivers/bluetooth/hci_h5.c +++ b/drivers/bluetooth/hci_h5.c @@ -21,13 +21,18 @@ * */ -#include <linux/kernel.h> +#include <linux/acpi.h> #include <linux/errno.h> +#include <linux/gpio/consumer.h> +#include <linux/kernel.h> +#include <linux/mod_devicetable.h> +#include <linux/serdev.h> #include <linux/skbuff.h> #include <net/bluetooth/bluetooth.h> #include <net/bluetooth/hci_core.h> +#include "btrtl.h" #include "hci_uart.h" #define HCI_3WIRE_ACK_PKT 0 @@ -65,6 +70,9 @@ enum { }; struct h5 { + /* Must be the first member, hci_serdev.c expects this. */ + struct hci_uart serdev_hu; + struct sk_buff_head unack; /* Unack'ed packets queue */ struct sk_buff_head rel; /* Reliable packets queue */ struct sk_buff_head unrel; /* Unreliable packets queue */ @@ -95,6 +103,19 @@ struct h5 { H5_SLEEPING, H5_WAKING_UP, } sleep; + + const struct h5_vnd *vnd; + const char *id; + + struct gpio_desc *enable_gpio; + struct gpio_desc *device_wake_gpio; +}; + +struct h5_vnd { + int (*setup)(struct h5 *h5); + void (*open)(struct h5 *h5); + void (*close)(struct h5 *h5); + const struct acpi_gpio_mapping *acpi_gpio_map; }; static void h5_reset_rx(struct h5 *h5); @@ -193,9 +214,13 @@ static int h5_open(struct hci_uart *hu) BT_DBG("hu %p", hu); - h5 = kzalloc(sizeof(*h5), GFP_KERNEL); - if (!h5) - return -ENOMEM; + if (hu->serdev) { + h5 = serdev_device_get_drvdata(hu->serdev); + } else { + h5 = kzalloc(sizeof(*h5), GFP_KERNEL); + if (!h5) + return -ENOMEM; + } hu->priv = h5; h5->hu = hu; @@ -210,6 +235,9 @@ static int h5_open(struct hci_uart *hu) h5->tx_win = H5_TX_WIN_MAX; + if (h5->vnd && h5->vnd->open) + h5->vnd->open(h5); + set_bit(HCI_UART_INIT_PENDING, &hu->hdev_flags); /* Send initial sync request */ @@ -229,7 +257,21 @@ static int h5_close(struct hci_uart *hu) skb_queue_purge(&h5->rel); skb_queue_purge(&h5->unrel); - kfree(h5); + if (h5->vnd && h5->vnd->close) + h5->vnd->close(h5); + + if (!hu->serdev) + kfree(h5); + + return 0; +} + +static int h5_setup(struct hci_uart *hu) +{ + struct h5 *h5 = hu->priv; + + if (h5->vnd && h5->vnd->setup) + return h5->vnd->setup(h5); return 0; } @@ -744,18 +786,168 @@ static const struct hci_uart_proto h5p = { .name = "Three-wire (H5)", .open = h5_open, .close = h5_close, + .setup = h5_setup, .recv = h5_recv, .enqueue = h5_enqueue, .dequeue = h5_dequeue, .flush = h5_flush, }; +static int h5_serdev_probe(struct serdev_device *serdev) +{ + const struct acpi_device_id *match; + struct device *dev = &serdev->dev; + struct h5 *h5; + + h5 = devm_kzalloc(dev, sizeof(*h5), GFP_KERNEL); + if (!h5) + return -ENOMEM; + + set_bit(HCI_UART_RESET_ON_INIT, &h5->serdev_hu.flags); + + h5->hu = &h5->serdev_hu; + h5->serdev_hu.serdev = serdev; + serdev_device_set_drvdata(serdev, h5); + + if (has_acpi_companion(dev)) { + match = acpi_match_device(dev->driver->acpi_match_table, dev); + if (!match) + return -ENODEV; + + h5->vnd = (const struct h5_vnd *)match->driver_data; + h5->id = (char *)match->id; + + if (h5->vnd->acpi_gpio_map) + devm_acpi_dev_add_driver_gpios(dev, + h5->vnd->acpi_gpio_map); + } + + h5->enable_gpio = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_LOW); + if (IS_ERR(h5->enable_gpio)) + return PTR_ERR(h5->enable_gpio); + + h5->device_wake_gpio = devm_gpiod_get_optional(dev, "device-wake", + GPIOD_OUT_LOW); + if (IS_ERR(h5->device_wake_gpio)) + return PTR_ERR(h5->device_wake_gpio); + + return hci_uart_register_device(&h5->serdev_hu, &h5p); +} + +static void h5_serdev_remove(struct serdev_device *serdev) +{ + struct h5 *h5 = serdev_device_get_drvdata(serdev); + + hci_uart_unregister_device(&h5->serdev_hu); +} + +static int h5_btrtl_setup(struct h5 *h5) +{ + struct btrtl_device_info *btrtl_dev; + struct sk_buff *skb; + __le32 baudrate_data; + u32 device_baudrate; + unsigned int controller_baudrate; + bool flow_control; + int err; + + btrtl_dev = btrtl_initialize(h5->hu->hdev, h5->id); + if (IS_ERR(btrtl_dev)) + return PTR_ERR(btrtl_dev); + + err = btrtl_get_uart_settings(h5->hu->hdev, btrtl_dev, + &controller_baudrate, &device_baudrate, + &flow_control); + if (err) + goto out_free; + + baudrate_data = cpu_to_le32(device_baudrate); + skb = __hci_cmd_sync(h5->hu->hdev, 0xfc17, sizeof(baudrate_data), + &baudrate_data, HCI_INIT_TIMEOUT); + if (IS_ERR(skb)) { + rtl_dev_err(h5->hu->hdev, "set baud rate command failed\n"); + err = PTR_ERR(skb); + goto out_free; + } else { + kfree_skb(skb); + } + /* Give the device some time to set up the new baudrate. */ + usleep_range(10000, 20000); + + serdev_device_set_baudrate(h5->hu->serdev, controller_baudrate); + serdev_device_set_flow_control(h5->hu->serdev, flow_control); + + err = btrtl_download_firmware(h5->hu->hdev, btrtl_dev); + /* Give the device some time before the hci-core sends it a reset */ + usleep_range(10000, 20000); + +out_free: + btrtl_free(btrtl_dev); + + return err; +} + +static void h5_btrtl_open(struct h5 *h5) +{ + /* Devices always start with these fixed parameters */ + serdev_device_set_flow_control(h5->hu->serdev, false); + serdev_device_set_parity(h5->hu->serdev, SERDEV_PARITY_EVEN); + serdev_device_set_baudrate(h5->hu->serdev, 115200); + + /* The controller needs up to 500ms to wakeup */ + gpiod_set_value_cansleep(h5->enable_gpio, 1); + gpiod_set_value_cansleep(h5->device_wake_gpio, 1); + msleep(500); +} + +static void h5_btrtl_close(struct h5 *h5) +{ + gpiod_set_value_cansleep(h5->device_wake_gpio, 0); + gpiod_set_value_cansleep(h5->enable_gpio, 0); +} + +static const struct acpi_gpio_params btrtl_device_wake_gpios = { 0, 0, false }; +static const struct acpi_gpio_params btrtl_enable_gpios = { 1, 0, false }; +static const struct acpi_gpio_params btrtl_host_wake_gpios = { 2, 0, false }; +static const struct acpi_gpio_mapping acpi_btrtl_gpios[] = { + { "device-wake-gpios", &btrtl_device_wake_gpios, 1 }, + { "enable-gpios", &btrtl_enable_gpios, 1 }, + { "host-wake-gpios", &btrtl_host_wake_gpios, 1 }, + {}, +}; + +static struct h5_vnd rtl_vnd = { + .setup = h5_btrtl_setup, + .open = h5_btrtl_open, + .close = h5_btrtl_close, + .acpi_gpio_map = acpi_btrtl_gpios, +}; + +#ifdef CONFIG_ACPI +static const struct acpi_device_id h5_acpi_match[] = { + { "OBDA8723", (kernel_ulong_t)&rtl_vnd }, + { }, +}; +MODULE_DEVICE_TABLE(acpi, h5_acpi_match); +#endif + +static struct serdev_device_driver h5_serdev_driver = { + .probe = h5_serdev_probe, + .remove = h5_serdev_remove, + .driver = { + .name = "hci_uart_h5", + .acpi_match_table = ACPI_PTR(h5_acpi_match), + }, +}; + int __init h5_init(void) { + serdev_device_driver_register(&h5_serdev_driver); return hci_uart_register_proto(&h5p); } int __exit h5_deinit(void) { + serdev_device_driver_unregister(&h5_serdev_driver); return hci_uart_unregister_proto(&h5p); } diff --git a/drivers/bluetooth/hci_intel.c b/drivers/bluetooth/hci_intel.c index 7c166e3b308b..46ace321bf60 100644 --- a/drivers/bluetooth/hci_intel.c +++ b/drivers/bluetooth/hci_intel.c @@ -458,7 +458,7 @@ static int inject_cmd_complete(struct hci_dev *hdev, __u16 opcode) struct hci_event_hdr *hdr; struct hci_ev_cmd_complete *evt; - skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_ATOMIC); + skb = bt_skb_alloc(sizeof(*hdr) + sizeof(*evt) + 1, GFP_KERNEL); if (!skb) return -ENOMEM; diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 51790dd02afb..e182f6019f68 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -5,7 +5,7 @@ * protocol extension to H4. * * Copyright (C) 2007 Texas Instruments, Inc. - * Copyright (c) 2010, 2012 The Linux Foundation. All rights reserved. + * Copyright (c) 2010, 2012, 2018 The Linux Foundation. All rights reserved. * * Acknowledgements: * This file is based on hci_ll.c, which was... @@ -31,9 +31,14 @@ #include <linux/kernel.h> #include <linux/clk.h> #include <linux/debugfs.h> +#include <linux/delay.h> +#include <linux/device.h> #include <linux/gpio/consumer.h> #include <linux/mod_devicetable.h> #include <linux/module.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include <linux/regulator/consumer.h> #include <linux/serdev.h> #include <net/bluetooth/bluetooth.h> @@ -119,12 +124,51 @@ struct qca_data { u64 votes_off; }; +enum qca_speed_type { + QCA_INIT_SPEED = 1, + QCA_OPER_SPEED +}; + +/* + * Voltage regulator information required for configuring the + * QCA Bluetooth chipset + */ +struct qca_vreg { + const char *name; + unsigned int min_uV; + unsigned int max_uV; + unsigned int load_uA; +}; + +struct qca_vreg_data { + enum qca_btsoc_type soc_type; + struct qca_vreg *vregs; + size_t num_vregs; +}; + +/* + * Platform data for the QCA Bluetooth power driver. + */ +struct qca_power { + struct device *dev; + const struct qca_vreg_data *vreg_data; + struct regulator_bulk_data *vreg_bulk; + bool vregs_on; +}; + struct qca_serdev { struct hci_uart serdev_hu; struct gpio_desc *bt_en; struct clk *susclk; + enum qca_btsoc_type btsoc_type; + struct qca_power *bt_power; + u32 init_speed; + u32 oper_speed; }; +static int qca_power_setup(struct hci_uart *hu, bool on); +static void qca_power_shutdown(struct hci_dev *hdev); + static void __serial_clock_on(struct tty_struct *tty) { /* TODO: Some chipset requires to enable UART clock on client @@ -402,10 +446,11 @@ static int qca_open(struct hci_uart *hu) { struct qca_serdev *qcadev; struct qca_data *qca; + int ret; BT_DBG("hu %p qca_open", hu); - qca = kzalloc(sizeof(struct qca_data), GFP_ATOMIC); + qca = kzalloc(sizeof(struct qca_data), GFP_KERNEL); if (!qca) return -ENOMEM; @@ -453,19 +498,32 @@ static int qca_open(struct hci_uart *hu) hu->priv = qca; - timer_setup(&qca->wake_retrans_timer, hci_ibs_wake_retrans_timeout, 0); - qca->wake_retrans = IBS_WAKE_RETRANS_TIMEOUT_MS; - - timer_setup(&qca->tx_idle_timer, hci_ibs_tx_idle_timeout, 0); - qca->tx_idle_delay = IBS_TX_IDLE_TIMEOUT_MS; - if (hu->serdev) { serdev_device_open(hu->serdev); qcadev = serdev_device_get_drvdata(hu->serdev); - gpiod_set_value_cansleep(qcadev->bt_en, 1); + if (qcadev->btsoc_type != QCA_WCN3990) { + gpiod_set_value_cansleep(qcadev->bt_en, 1); + } else { + hu->init_speed = qcadev->init_speed; + hu->oper_speed = qcadev->oper_speed; + ret = qca_power_setup(hu, true); + if (ret) { + destroy_workqueue(qca->workqueue); + kfree_skb(qca->rx_skb); + hu->priv = NULL; + kfree(qca); + return ret; + } + } } + timer_setup(&qca->wake_retrans_timer, hci_ibs_wake_retrans_timeout, 0); + qca->wake_retrans = IBS_WAKE_RETRANS_TIMEOUT_MS; + + timer_setup(&qca->tx_idle_timer, hci_ibs_tx_idle_timeout, 0); + qca->tx_idle_delay = IBS_TX_IDLE_TIMEOUT_MS; + BT_DBG("HCI_UART_QCA open, tx_idle_delay=%u, wake_retrans=%u", qca->tx_idle_delay, qca->wake_retrans); @@ -549,10 +607,13 @@ static int qca_close(struct hci_uart *hu) qca->hu = NULL; if (hu->serdev) { - serdev_device_close(hu->serdev); - qcadev = serdev_device_get_drvdata(hu->serdev); - gpiod_set_value_cansleep(qcadev->bt_en, 0); + if (qcadev->btsoc_type == QCA_WCN3990) + qca_power_shutdown(hu->hdev); + else + gpiod_set_value_cansleep(qcadev->bt_en, 0); + + serdev_device_close(hu->serdev); } kfree_skb(qca->rx_skb); @@ -872,6 +933,8 @@ static uint8_t qca_get_baudrate_value(int speed) return QCA_BAUDRATE_2000000; case 3000000: return QCA_BAUDRATE_3000000; + case 3200000: + return QCA_BAUDRATE_3200000; case 3500000: return QCA_BAUDRATE_3500000; default: @@ -884,19 +947,27 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate) struct hci_uart *hu = hci_get_drvdata(hdev); struct qca_data *qca = hu->priv; struct sk_buff *skb; + struct qca_serdev *qcadev; u8 cmd[] = { 0x01, 0x48, 0xFC, 0x01, 0x00 }; - if (baudrate > QCA_BAUDRATE_3000000) + if (baudrate > QCA_BAUDRATE_3200000) return -EINVAL; cmd[4] = baudrate; - skb = bt_skb_alloc(sizeof(cmd), GFP_ATOMIC); + skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); if (!skb) { bt_dev_err(hdev, "Failed to allocate baudrate packet"); return -ENOMEM; } + /* Disabling hardware flow control is mandatory while + * sending change baudrate request to wcn3990 SoC. + */ + qcadev = serdev_device_get_drvdata(hu->serdev); + if (qcadev->btsoc_type == QCA_WCN3990) + hci_uart_set_flow_control(hu, true); + /* Assign commands to change baudrate and packet type. */ skb_put_data(skb, cmd, sizeof(cmd)); hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; @@ -912,6 +983,9 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate) schedule_timeout(msecs_to_jiffies(BAUDRATE_SETTLE_TIMEOUT_MS)); set_current_state(TASK_RUNNING); + if (qcadev->btsoc_type == QCA_WCN3990) + hci_uart_set_flow_control(hu, false); + return 0; } @@ -923,50 +997,195 @@ static inline void host_set_baudrate(struct hci_uart *hu, unsigned int speed) hci_uart_set_baudrate(hu, speed); } +static int qca_send_power_pulse(struct hci_dev *hdev, u8 cmd) +{ + struct hci_uart *hu = hci_get_drvdata(hdev); + struct qca_data *qca = hu->priv; + struct sk_buff *skb; + + /* These power pulses are single byte command which are sent + * at required baudrate to wcn3990. On wcn3990, we have an external + * circuit at Tx pin which decodes the pulse sent at specific baudrate. + * For example, wcn3990 supports RF COEX antenna for both Wi-Fi/BT + * and also we use the same power inputs to turn on and off for + * Wi-Fi/BT. Powering up the power sources will not enable BT, until + * we send a power on pulse at 115200 bps. This algorithm will help to + * save power. Disabling hardware flow control is mandatory while + * sending power pulses to SoC. + */ + bt_dev_dbg(hdev, "sending power pulse %02x to SoC", cmd); + + skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL); + if (!skb) + return -ENOMEM; + + hci_uart_set_flow_control(hu, true); + + skb_put_u8(skb, cmd); + hci_skb_pkt_type(skb) = HCI_COMMAND_PKT; + + skb_queue_tail(&qca->txq, skb); + hci_uart_tx_wakeup(hu); + + /* Wait for 100 uS for SoC to settle down */ + usleep_range(100, 200); + hci_uart_set_flow_control(hu, false); + + return 0; +} + +static unsigned int qca_get_speed(struct hci_uart *hu, + enum qca_speed_type speed_type) +{ + unsigned int speed = 0; + + if (speed_type == QCA_INIT_SPEED) { + if (hu->init_speed) + speed = hu->init_speed; + else if (hu->proto->init_speed) + speed = hu->proto->init_speed; + } else { + if (hu->oper_speed) + speed = hu->oper_speed; + else if (hu->proto->oper_speed) + speed = hu->proto->oper_speed; + } + + return speed; +} + +static int qca_check_speeds(struct hci_uart *hu) +{ + struct qca_serdev *qcadev; + + qcadev = serdev_device_get_drvdata(hu->serdev); + if (qcadev->btsoc_type == QCA_WCN3990) { + if (!qca_get_speed(hu, QCA_INIT_SPEED) && + !qca_get_speed(hu, QCA_OPER_SPEED)) + return -EINVAL; + } else { + if (!qca_get_speed(hu, QCA_INIT_SPEED) || + !qca_get_speed(hu, QCA_OPER_SPEED)) + return -EINVAL; + } + + return 0; +} + +static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type) +{ + unsigned int speed, qca_baudrate; + int ret; + + if (speed_type == QCA_INIT_SPEED) { + speed = qca_get_speed(hu, QCA_INIT_SPEED); + if (speed) + host_set_baudrate(hu, speed); + } else { + speed = qca_get_speed(hu, QCA_OPER_SPEED); + if (!speed) + return 0; + + qca_baudrate = qca_get_baudrate_value(speed); + bt_dev_dbg(hu->hdev, "Set UART speed to %d", speed); + ret = qca_set_baudrate(hu->hdev, qca_baudrate); + if (ret) + return ret; + + host_set_baudrate(hu, speed); + } + + return 0; +} + +static int qca_wcn3990_init(struct hci_uart *hu) +{ + struct hci_dev *hdev = hu->hdev; + int ret; + + /* Forcefully enable wcn3990 to enter in to boot mode. */ + host_set_baudrate(hu, 2400); + ret = qca_send_power_pulse(hdev, QCA_WCN3990_POWEROFF_PULSE); + if (ret) + return ret; + + qca_set_speed(hu, QCA_INIT_SPEED); + ret = qca_send_power_pulse(hdev, QCA_WCN3990_POWERON_PULSE); + if (ret) + return ret; + + /* Wait for 100 ms for SoC to boot */ + msleep(100); + + /* Now the device is in ready state to communicate with host. + * To sync host with device we need to reopen port. + * Without this, we will have RTS and CTS synchronization + * issues. + */ + serdev_device_close(hu->serdev); + ret = serdev_device_open(hu->serdev); + if (ret) { + bt_dev_err(hu->hdev, "failed to open port"); + return ret; + } + + hci_uart_set_flow_control(hu, false); + + return 0; +} + static int qca_setup(struct hci_uart *hu) { struct hci_dev *hdev = hu->hdev; struct qca_data *qca = hu->priv; unsigned int speed, qca_baudrate = QCA_BAUDRATE_115200; + struct qca_serdev *qcadev; int ret; + int soc_ver = 0; + + qcadev = serdev_device_get_drvdata(hu->serdev); - bt_dev_info(hdev, "ROME setup"); + ret = qca_check_speeds(hu); + if (ret) + return ret; /* Patch downloading has to be done without IBS mode */ clear_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags); - /* Setup initial baudrate */ - speed = 0; - if (hu->init_speed) - speed = hu->init_speed; - else if (hu->proto->init_speed) - speed = hu->proto->init_speed; + if (qcadev->btsoc_type == QCA_WCN3990) { + bt_dev_info(hdev, "setting up wcn3990"); + ret = qca_wcn3990_init(hu); + if (ret) + return ret; - if (speed) - host_set_baudrate(hu, speed); + ret = qca_read_soc_version(hdev, &soc_ver); + if (ret) + return ret; + } else { + bt_dev_info(hdev, "ROME setup"); + qca_set_speed(hu, QCA_INIT_SPEED); + } /* Setup user speed if needed */ - speed = 0; - if (hu->oper_speed) - speed = hu->oper_speed; - else if (hu->proto->oper_speed) - speed = hu->proto->oper_speed; - + speed = qca_get_speed(hu, QCA_OPER_SPEED); if (speed) { + ret = qca_set_speed(hu, QCA_OPER_SPEED); + if (ret) + return ret; + qca_baudrate = qca_get_baudrate_value(speed); + } - bt_dev_info(hdev, "Set UART speed to %d", speed); - ret = qca_set_baudrate(hdev, qca_baudrate); - if (ret) { - bt_dev_err(hdev, "Failed to change the baud rate (%d)", - ret); + if (qcadev->btsoc_type != QCA_WCN3990) { + /* Get QCA version information */ + ret = qca_read_soc_version(hdev, &soc_ver); + if (ret) return ret; - } - host_set_baudrate(hu, speed); } + bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver); /* Setup patch / NVM configurations */ - ret = qca_uart_setup_rome(hdev, qca_baudrate); + ret = qca_uart_setup(hdev, qca_baudrate, qcadev->btsoc_type, soc_ver); if (!ret) { set_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags); qca_debugfs_init(hdev); @@ -1002,9 +1221,123 @@ static struct hci_uart_proto qca_proto = { .dequeue = qca_dequeue, }; +static const struct qca_vreg_data qca_soc_data = { + .soc_type = QCA_WCN3990, + .vregs = (struct qca_vreg []) { + { "vddio", 1800000, 1900000, 15000 }, + { "vddxo", 1800000, 1900000, 80000 }, + { "vddrf", 1300000, 1350000, 300000 }, + { "vddch0", 3300000, 3400000, 450000 }, + }, + .num_vregs = 4, +}; + +static void qca_power_shutdown(struct hci_dev *hdev) +{ + struct hci_uart *hu = hci_get_drvdata(hdev); + + host_set_baudrate(hu, 2400); + qca_send_power_pulse(hdev, QCA_WCN3990_POWEROFF_PULSE); + qca_power_setup(hu, false); +} + +static int qca_enable_regulator(struct qca_vreg vregs, + struct regulator *regulator) +{ + int ret; + + ret = regulator_set_voltage(regulator, vregs.min_uV, + vregs.max_uV); + if (ret) + return ret; + + if (vregs.load_uA) + ret = regulator_set_load(regulator, + vregs.load_uA); + + if (ret) + return ret; + + return regulator_enable(regulator); + +} + +static void qca_disable_regulator(struct qca_vreg vregs, + struct regulator *regulator) +{ + regulator_disable(regulator); + regulator_set_voltage(regulator, 0, vregs.max_uV); + if (vregs.load_uA) + regulator_set_load(regulator, 0); + +} + +static int qca_power_setup(struct hci_uart *hu, bool on) +{ + struct qca_vreg *vregs; + struct regulator_bulk_data *vreg_bulk; + struct qca_serdev *qcadev; + int i, num_vregs, ret = 0; + + qcadev = serdev_device_get_drvdata(hu->serdev); + if (!qcadev || !qcadev->bt_power || !qcadev->bt_power->vreg_data || + !qcadev->bt_power->vreg_bulk) + return -EINVAL; + + vregs = qcadev->bt_power->vreg_data->vregs; + vreg_bulk = qcadev->bt_power->vreg_bulk; + num_vregs = qcadev->bt_power->vreg_data->num_vregs; + BT_DBG("on: %d", on); + if (on && !qcadev->bt_power->vregs_on) { + for (i = 0; i < num_vregs; i++) { + ret = qca_enable_regulator(vregs[i], + vreg_bulk[i].consumer); + if (ret) + break; + } + + if (ret) { + BT_ERR("failed to enable regulator:%s", vregs[i].name); + /* turn off regulators which are enabled */ + for (i = i - 1; i >= 0; i--) + qca_disable_regulator(vregs[i], + vreg_bulk[i].consumer); + } else { + qcadev->bt_power->vregs_on = true; + } + } else if (!on && qcadev->bt_power->vregs_on) { + /* turn off regulator in reverse order */ + i = qcadev->bt_power->vreg_data->num_vregs - 1; + for ( ; i >= 0; i--) + qca_disable_regulator(vregs[i], vreg_bulk[i].consumer); + + qcadev->bt_power->vregs_on = false; + } + + return ret; +} + +static int qca_init_regulators(struct qca_power *qca, + const struct qca_vreg *vregs, size_t num_vregs) +{ + int i; + + qca->vreg_bulk = devm_kzalloc(qca->dev, num_vregs * + sizeof(struct regulator_bulk_data), + GFP_KERNEL); + if (!qca->vreg_bulk) + return -ENOMEM; + + for (i = 0; i < num_vregs; i++) + qca->vreg_bulk[i].supply = vregs[i].name; + + return devm_regulator_bulk_get(qca->dev, num_vregs, qca->vreg_bulk); +} + static int qca_serdev_probe(struct serdev_device *serdev) { struct qca_serdev *qcadev; + const struct qca_vreg_data *data; int err; qcadev = devm_kzalloc(&serdev->dev, sizeof(*qcadev), GFP_KERNEL); @@ -1012,47 +1345,84 @@ static int qca_serdev_probe(struct serdev_device *serdev) return -ENOMEM; qcadev->serdev_hu.serdev = serdev; + data = of_device_get_match_data(&serdev->dev); serdev_device_set_drvdata(serdev, qcadev); + if (data && data->soc_type == QCA_WCN3990) { + qcadev->btsoc_type = QCA_WCN3990; + qcadev->bt_power = devm_kzalloc(&serdev->dev, + sizeof(struct qca_power), + GFP_KERNEL); + if (!qcadev->bt_power) + return -ENOMEM; + + qcadev->bt_power->dev = &serdev->dev; + qcadev->bt_power->vreg_data = data; + err = qca_init_regulators(qcadev->bt_power, data->vregs, + data->num_vregs); + if (err) { + BT_ERR("Failed to init regulators:%d", err); + goto out; + } - qcadev->bt_en = devm_gpiod_get(&serdev->dev, "enable", - GPIOD_OUT_LOW); - if (IS_ERR(qcadev->bt_en)) { - dev_err(&serdev->dev, "failed to acquire enable gpio\n"); - return PTR_ERR(qcadev->bt_en); - } + qcadev->bt_power->vregs_on = false; - qcadev->susclk = devm_clk_get(&serdev->dev, NULL); - if (IS_ERR(qcadev->susclk)) { - dev_err(&serdev->dev, "failed to acquire clk\n"); - return PTR_ERR(qcadev->susclk); - } + device_property_read_u32(&serdev->dev, "max-speed", + &qcadev->oper_speed); + if (!qcadev->oper_speed) + BT_DBG("UART will pick default operating speed"); - err = clk_set_rate(qcadev->susclk, SUSCLK_RATE_32KHZ); - if (err) - return err; + err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto); + if (err) { + BT_ERR("wcn3990 serdev registration failed"); + goto out; + } + } else { + qcadev->btsoc_type = QCA_ROME; + qcadev->bt_en = devm_gpiod_get(&serdev->dev, "enable", + GPIOD_OUT_LOW); + if (IS_ERR(qcadev->bt_en)) { + dev_err(&serdev->dev, "failed to acquire enable gpio\n"); + return PTR_ERR(qcadev->bt_en); + } - err = clk_prepare_enable(qcadev->susclk); - if (err) - return err; + qcadev->susclk = devm_clk_get(&serdev->dev, NULL); + if (IS_ERR(qcadev->susclk)) { + dev_err(&serdev->dev, "failed to acquire clk\n"); + return PTR_ERR(qcadev->susclk); + } - err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto); - if (err) - clk_disable_unprepare(qcadev->susclk); + err = clk_set_rate(qcadev->susclk, SUSCLK_RATE_32KHZ); + if (err) + return err; + + err = clk_prepare_enable(qcadev->susclk); + if (err) + return err; + + err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto); + if (err) + clk_disable_unprepare(qcadev->susclk); + } + +out: return err; - return err; } static void qca_serdev_remove(struct serdev_device *serdev) { struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev); - hci_uart_unregister_device(&qcadev->serdev_hu); + if (qcadev->btsoc_type == QCA_WCN3990) + qca_power_shutdown(qcadev->serdev_hu.hdev); + else + clk_disable_unprepare(qcadev->susclk); - clk_disable_unprepare(qcadev->susclk); + hci_uart_unregister_device(&qcadev->serdev_hu); } static const struct of_device_id qca_bluetooth_of_match[] = { { .compatible = "qcom,qca6174-bt" }, + { .compatible = "qcom,wcn3990-bt", .data = &qca_soc_data}, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, qca_bluetooth_of_match); |