From 095327fede005f4b14d40b2183b2f7965c739dbd Mon Sep 17 00:00:00 2001 From: Steev Klimaszewski Date: Sun, 26 Mar 2023 18:38:10 -0500 Subject: [PATCH] Bluetooth: hci_qca: Add support for QTI Bluetooth chip wcn6855 Add regulators, GPIOs and changes required to power on/off wcn6855. Add support for firmware download for wcn6855 which is in the linux-firmware repository as hpbtfw21.tlv and hpnv21.bin. Based on the assumption that this is similar to the wcn6750 Tested-on: BTFW.HSP.2.1.0-00538-VER_PATCHZ-1 Signed-off-by: Steev Klimaszewski Reviewed-by: Bjorn Andersson Tested-by: Bjorn Andersson Signed-off-by: Luiz Augusto von Dentz --- drivers/bluetooth/btqca.c | 14 ++++++++++- drivers/bluetooth/btqca.h | 10 ++++++++ drivers/bluetooth/hci_qca.c | 57 ++++++++++++++++++++++++++++++++++----------- 3 files changed, 66 insertions(+), 15 deletions(-) diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c index c9064d3..fd0941f 100644 --- a/drivers/bluetooth/btqca.c +++ b/drivers/bluetooth/btqca.c @@ -614,6 +614,9 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, config.type = ELF_TYPE_PATCH; snprintf(config.fwname, sizeof(config.fwname), "qca/msbtfw%02x.mbn", rom_ver); + } else if (soc_type == QCA_WCN6855) { + snprintf(config.fwname, sizeof(config.fwname), + "qca/hpbtfw%02x.tlv", rom_ver); } else { snprintf(config.fwname, sizeof(config.fwname), "qca/rampatch_%08x.bin", soc_ver); @@ -648,6 +651,9 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, else if (soc_type == QCA_WCN6750) snprintf(config.fwname, sizeof(config.fwname), "qca/msnv%02x.bin", rom_ver); + else if (soc_type == QCA_WCN6855) + snprintf(config.fwname, sizeof(config.fwname), + "qca/hpnv%02x.bin", rom_ver); else snprintf(config.fwname, sizeof(config.fwname), "qca/nvm_%08x.bin", soc_ver); @@ -685,11 +691,17 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate, return err; } - if (soc_type == QCA_WCN3991 || soc_type == QCA_WCN6750) { + switch (soc_type) { + case QCA_WCN3991: + case QCA_WCN6750: + case QCA_WCN6855: /* get fw build info */ err = qca_read_fw_build_info(hdev); if (err < 0) return err; + break; + default: + break; } bt_dev_info(hdev, "QCA setup on UART is completed"); diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h index 61e9a50..b884095 100644 --- a/drivers/bluetooth/btqca.h +++ b/drivers/bluetooth/btqca.h @@ -147,6 +147,7 @@ enum qca_btsoc_type { QCA_WCN3991, QCA_QCA6390, QCA_WCN6750, + QCA_WCN6855, }; #if IS_ENABLED(CONFIG_BT_QCA) @@ -168,6 +169,10 @@ static inline bool qca_is_wcn6750(enum qca_btsoc_type soc_type) { return soc_type == QCA_WCN6750; } +static inline bool qca_is_wcn6855(enum qca_btsoc_type soc_type) +{ + return soc_type == QCA_WCN6855; +} #else @@ -206,6 +211,11 @@ static inline bool qca_is_wcn6750(enum qca_btsoc_type soc_type) return false; } +static inline bool qca_is_wcn6855(enum qca_btsoc_type soc_type) +{ + return false; +} + static inline int qca_send_pre_shutdown_cmd(struct hci_dev *hdev) { return -EOPNOTSUPP; diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index a199ed5..1597797 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -1317,7 +1317,8 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate) /* Give the controller time to process the request */ if (qca_is_wcn399x(qca_soc_type(hu)) || - qca_is_wcn6750(qca_soc_type(hu))) + qca_is_wcn6750(qca_soc_type(hu)) || + qca_is_wcn6855(qca_soc_type(hu))) usleep_range(1000, 10000); else msleep(300); @@ -1394,7 +1395,8 @@ static unsigned int qca_get_speed(struct hci_uart *hu, static int qca_check_speeds(struct hci_uart *hu) { if (qca_is_wcn399x(qca_soc_type(hu)) || - qca_is_wcn6750(qca_soc_type(hu))) { + qca_is_wcn6750(qca_soc_type(hu)) || + qca_is_wcn6855(qca_soc_type(hu))) { if (!qca_get_speed(hu, QCA_INIT_SPEED) && !qca_get_speed(hu, QCA_OPER_SPEED)) return -EINVAL; @@ -1428,7 +1430,8 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type) * changing the baudrate of chip and host. */ if (qca_is_wcn399x(soc_type) || - qca_is_wcn6750(soc_type)) + qca_is_wcn6750(soc_type) || + qca_is_wcn6855(soc_type)) hci_uart_set_flow_control(hu, true); if (soc_type == QCA_WCN3990) { @@ -1446,7 +1449,8 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type) error: if (qca_is_wcn399x(soc_type) || - qca_is_wcn6750(soc_type)) + qca_is_wcn6750(soc_type) || + qca_is_wcn6855(soc_type)) hci_uart_set_flow_control(hu, false); if (soc_type == QCA_WCN3990) { @@ -1682,7 +1686,8 @@ static int qca_power_on(struct hci_dev *hdev) return 0; if (qca_is_wcn399x(soc_type) || - qca_is_wcn6750(soc_type)) { + qca_is_wcn6750(soc_type) || + qca_is_wcn6855(soc_type)) { ret = qca_regulator_init(hu); } else { qcadev = serdev_device_get_drvdata(hu->serdev); @@ -1723,7 +1728,8 @@ static int qca_setup(struct hci_uart *hu) bt_dev_info(hdev, "setting up %s", qca_is_wcn399x(soc_type) ? "wcn399x" : - (soc_type == QCA_WCN6750) ? "wcn6750" : "ROME/QCA6390"); + (soc_type == QCA_WCN6750) ? "wcn6750" : + (soc_type == QCA_WCN6855) ? "wcn6855" : "ROME/QCA6390"); qca->memdump_state = QCA_MEMDUMP_IDLE; @@ -1735,7 +1741,8 @@ retry: clear_bit(QCA_SSR_TRIGGERED, &qca->flags); if (qca_is_wcn399x(soc_type) || - qca_is_wcn6750(soc_type)) { + qca_is_wcn6750(soc_type) || + qca_is_wcn6855(soc_type)) { set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks); hci_set_aosp_capable(hdev); @@ -1757,7 +1764,8 @@ retry: } if (!(qca_is_wcn399x(soc_type) || - qca_is_wcn6750(soc_type))) { + qca_is_wcn6750(soc_type) || + qca_is_wcn6855(soc_type))) { /* Get QCA version information */ ret = qca_read_soc_version(hdev, &ver, soc_type); if (ret) @@ -1883,6 +1891,20 @@ static const struct qca_device_data qca_soc_data_wcn6750 __maybe_unused = { .capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES, }; +static const struct qca_device_data qca_soc_data_wcn6855 = { + .soc_type = QCA_WCN6855, + .vregs = (struct qca_vreg []) { + { "vddio", 5000 }, + { "vddbtcxmx", 126000 }, + { "vddrfacmn", 12500 }, + { "vddrfa0p8", 102000 }, + { "vddrfa1p7", 302000 }, + { "vddrfa1p2", 257000 }, + }, + .num_vregs = 6, + .capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES, +}; + static void qca_power_shutdown(struct hci_uart *hu) { struct qca_serdev *qcadev; @@ -1912,7 +1934,7 @@ static void qca_power_shutdown(struct hci_uart *hu) host_set_baudrate(hu, 2400); qca_send_power_pulse(hu, false); qca_regulator_disable(qcadev); - } else if (soc_type == QCA_WCN6750) { + } else if (soc_type == QCA_WCN6750 || soc_type == QCA_WCN6855) { gpiod_set_value_cansleep(qcadev->bt_en, 0); msleep(100); qca_regulator_disable(qcadev); @@ -2047,7 +2069,8 @@ static int qca_serdev_probe(struct serdev_device *serdev) if (data && (qca_is_wcn399x(data->soc_type) || - qca_is_wcn6750(data->soc_type))) { + qca_is_wcn6750(data->soc_type) || + qca_is_wcn6855(data->soc_type))) { qcadev->btsoc_type = data->soc_type; qcadev->bt_power = devm_kzalloc(&serdev->dev, sizeof(struct qca_power), @@ -2067,14 +2090,18 @@ static int qca_serdev_probe(struct serdev_device *serdev) qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable", GPIOD_OUT_LOW); - if (IS_ERR_OR_NULL(qcadev->bt_en) && data->soc_type == QCA_WCN6750) { + if (IS_ERR_OR_NULL(qcadev->bt_en) && + (data->soc_type == QCA_WCN6750 || + data->soc_type == QCA_WCN6855)) { dev_err(&serdev->dev, "failed to acquire BT_EN gpio\n"); power_ctrl_enabled = false; } qcadev->sw_ctrl = devm_gpiod_get_optional(&serdev->dev, "swctrl", GPIOD_IN); - if (IS_ERR_OR_NULL(qcadev->sw_ctrl) && data->soc_type == QCA_WCN6750) + if (IS_ERR_OR_NULL(qcadev->sw_ctrl) && + (data->soc_type == QCA_WCN6750 || + data->soc_type == QCA_WCN6855)) dev_warn(&serdev->dev, "failed to acquire SW_CTRL gpio\n"); qcadev->susclk = devm_clk_get_optional(&serdev->dev, NULL); @@ -2150,8 +2177,9 @@ static void qca_serdev_remove(struct serdev_device *serdev) struct qca_power *power = qcadev->bt_power; if ((qca_is_wcn399x(qcadev->btsoc_type) || - qca_is_wcn6750(qcadev->btsoc_type)) && - power->vregs_on) + qca_is_wcn6750(qcadev->btsoc_type) || + qca_is_wcn6855(qcadev->btsoc_type)) && + power->vregs_on) qca_power_shutdown(&qcadev->serdev_hu); else if (qcadev->susclk) clk_disable_unprepare(qcadev->susclk); @@ -2335,6 +2363,7 @@ static const struct of_device_id qca_bluetooth_of_match[] = { { .compatible = "qcom,wcn3991-bt", .data = &qca_soc_data_wcn3991}, { .compatible = "qcom,wcn3998-bt", .data = &qca_soc_data_wcn3998}, { .compatible = "qcom,wcn6750-bt", .data = &qca_soc_data_wcn6750}, + { .compatible = "qcom,wcn6855-bt", .data = &qca_soc_data_wcn6855}, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, qca_bluetooth_of_match); -- 2.7.4