This is a note to let you know that I've just added the patch titled
Bluetooth: qca: use switch case for soc type behavior
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
bluetooth-qca-use-switch-case-for-soc-type-behavior.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit ff36c600c800a4cbeb2ae58251e1465104807b29
Author: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Date: Wed Aug 16 10:06:47 2023 +0200
Bluetooth: qca: use switch case for soc type behavior
[ Upstream commit 691d54d0f7cb14baac1ff4af210d13c0e4897e27 ]
Use switch/case to handle soc type specific behaviour,
the permit dropping the qca_is_xxx() inline functions
and make the code clearer and easier to update for new
SoCs.
Suggested-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
Suggested-by: Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx>
Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
Stable-dep-of: cda0d6a198e2 ("Bluetooth: qca: fix info leak when fetching fw build id")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index 6ae806b9e77f2..b14201b7bcd04 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -602,26 +602,34 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
/* Download rampatch file */
config.type = TLV_TYPE_PATCH;
- if (soc_type == QCA_WCN3988) {
- snprintf(config.fwname, sizeof(config.fwname),
- "qca/apbtfw%02x.tlv", rom_ver);
- } else if (qca_is_wcn399x(soc_type)) {
+ switch (soc_type) {
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
snprintf(config.fwname, sizeof(config.fwname),
"qca/crbtfw%02x.tlv", rom_ver);
- } else if (soc_type == QCA_QCA6390) {
+ break;
+ case QCA_WCN3988:
+ snprintf(config.fwname, sizeof(config.fwname),
+ "qca/apbtfw%02x.tlv", rom_ver);
+ break;
+ case QCA_QCA6390:
snprintf(config.fwname, sizeof(config.fwname),
"qca/htbtfw%02x.tlv", rom_ver);
- } else if (soc_type == QCA_WCN6750) {
+ break;
+ case QCA_WCN6750:
/* Choose mbn file by default.If mbn file is not found
* then choose tlv file
*/
config.type = ELF_TYPE_PATCH;
snprintf(config.fwname, sizeof(config.fwname),
"qca/msbtfw%02x.mbn", rom_ver);
- } else if (soc_type == QCA_WCN6855) {
+ break;
+ case QCA_WCN6855:
snprintf(config.fwname, sizeof(config.fwname),
"qca/hpbtfw%02x.tlv", rom_ver);
- } else {
+ break;
+ default:
snprintf(config.fwname, sizeof(config.fwname),
"qca/rampatch_%08x.bin", soc_ver);
}
@@ -637,33 +645,44 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
/* Download NVM configuration */
config.type = TLV_TYPE_NVM;
- if (firmware_name)
+ if (firmware_name) {
snprintf(config.fwname, sizeof(config.fwname),
"qca/%s", firmware_name);
- else if (soc_type == QCA_WCN3988)
- snprintf(config.fwname, sizeof(config.fwname),
- "qca/apnv%02x.bin", rom_ver);
- else if (qca_is_wcn399x(soc_type)) {
- if (le32_to_cpu(ver.soc_id) == QCA_WCN3991_SOC_ID) {
+ } else {
+ switch (soc_type) {
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ if (le32_to_cpu(ver.soc_id) == QCA_WCN3991_SOC_ID) {
+ snprintf(config.fwname, sizeof(config.fwname),
+ "qca/crnv%02xu.bin", rom_ver);
+ } else {
+ snprintf(config.fwname, sizeof(config.fwname),
+ "qca/crnv%02x.bin", rom_ver);
+ }
+ break;
+ case QCA_WCN3988:
snprintf(config.fwname, sizeof(config.fwname),
- "qca/crnv%02xu.bin", rom_ver);
- } else {
+ "qca/apnv%02x.bin", rom_ver);
+ break;
+ case QCA_QCA6390:
+ snprintf(config.fwname, sizeof(config.fwname),
+ "qca/htnv%02x.bin", rom_ver);
+ break;
+ case QCA_WCN6750:
snprintf(config.fwname, sizeof(config.fwname),
- "qca/crnv%02x.bin", rom_ver);
+ "qca/msnv%02x.bin", rom_ver);
+ break;
+ case QCA_WCN6855:
+ snprintf(config.fwname, sizeof(config.fwname),
+ "qca/hpnv%02x.bin", rom_ver);
+ break;
+
+ default:
+ snprintf(config.fwname, sizeof(config.fwname),
+ "qca/nvm_%08x.bin", soc_ver);
}
}
- else if (soc_type == QCA_QCA6390)
- snprintf(config.fwname, sizeof(config.fwname),
- "qca/htnv%02x.bin", rom_ver);
- 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);
err = qca_download_firmware(hdev, &config, soc_type, rom_ver);
if (err < 0) {
@@ -671,16 +690,24 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
return err;
}
- if (soc_type >= QCA_WCN3991) {
+ switch (soc_type) {
+ case QCA_WCN3991:
+ case QCA_QCA6390:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
err = qca_disable_soc_logging(hdev);
if (err < 0)
return err;
+ break;
+ default:
+ break;
}
/* WCN399x and WCN6750 supports the Microsoft vendor extension with 0xFD70 as the
* VsMsftOpCode.
*/
switch (soc_type) {
+ case QCA_WCN3988:
case QCA_WCN3990:
case QCA_WCN3991:
case QCA_WCN3998:
diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
index 104bb12c88adf..fa77c07daecf5 100644
--- a/drivers/bluetooth/btqca.h
+++ b/drivers/bluetooth/btqca.h
@@ -159,27 +159,6 @@ int qca_read_soc_version(struct hci_dev *hdev, struct qca_btsoc_version *ver,
enum qca_btsoc_type);
int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr);
int qca_send_pre_shutdown_cmd(struct hci_dev *hdev);
-static inline bool qca_is_wcn399x(enum qca_btsoc_type soc_type)
-{
- switch (soc_type) {
- case QCA_WCN3988:
- case QCA_WCN3990:
- case QCA_WCN3991:
- case QCA_WCN3998:
- return true;
- default:
- return false;
- }
-}
-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
static inline int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
@@ -207,21 +186,6 @@ static inline int qca_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
return -EOPNOTSUPP;
}
-static inline bool qca_is_wcn399x(enum qca_btsoc_type soc_type)
-{
- return false;
-}
-
-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 3e67e07161969..62491e7610384 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -606,9 +606,18 @@ static int qca_open(struct hci_uart *hu)
if (hu->serdev) {
qcadev = serdev_device_get_drvdata(hu->serdev);
- if (qca_is_wcn399x(qcadev->btsoc_type) ||
- qca_is_wcn6750(qcadev->btsoc_type))
+ switch (qcadev->btsoc_type) {
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
hu->init_speed = qcadev->init_speed;
+ break;
+
+ default:
+ break;
+ }
if (qcadev->oper_speed)
hu->oper_speed = qcadev->oper_speed;
@@ -1314,12 +1323,19 @@ static int qca_set_baudrate(struct hci_dev *hdev, uint8_t baudrate)
msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS));
/* 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_wcn6855(qca_soc_type(hu)))
+ switch (qca_soc_type(hu)) {
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
usleep_range(1000, 10000);
- else
+ break;
+
+ default:
msleep(300);
+ }
return 0;
}
@@ -1392,13 +1408,19 @@ 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_wcn6855(qca_soc_type(hu))) {
+ switch (qca_soc_type(hu)) {
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
if (!qca_get_speed(hu, QCA_INIT_SPEED) &&
!qca_get_speed(hu, QCA_OPER_SPEED))
return -EINVAL;
- } else {
+ break;
+
+ default:
if (!qca_get_speed(hu, QCA_INIT_SPEED) ||
!qca_get_speed(hu, QCA_OPER_SPEED))
return -EINVAL;
@@ -1427,14 +1449,28 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
/* Disable flow control for wcn3990 to deassert RTS while
* changing the baudrate of chip and host.
*/
- if (qca_is_wcn399x(soc_type) ||
- qca_is_wcn6750(soc_type) ||
- qca_is_wcn6855(soc_type))
+ switch (soc_type) {
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
hci_uart_set_flow_control(hu, true);
+ break;
- if (soc_type == QCA_WCN3990) {
+ default:
+ break;
+ }
+
+ switch (soc_type) {
+ case QCA_WCN3990:
reinit_completion(&qca->drop_ev_comp);
set_bit(QCA_DROP_VENDOR_EVENT, &qca->flags);
+ break;
+
+ default:
+ break;
}
qca_baudrate = qca_get_baudrate_value(speed);
@@ -1446,12 +1482,22 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
host_set_baudrate(hu, speed);
error:
- if (qca_is_wcn399x(soc_type) ||
- qca_is_wcn6750(soc_type) ||
- qca_is_wcn6855(soc_type))
+ switch (soc_type) {
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
hci_uart_set_flow_control(hu, false);
+ break;
- if (soc_type == QCA_WCN3990) {
+ default:
+ break;
+ }
+
+ switch (soc_type) {
+ case QCA_WCN3990:
/* Wait for the controller to send the vendor event
* for the baudrate change command.
*/
@@ -1463,6 +1509,10 @@ static int qca_set_speed(struct hci_uart *hu, enum qca_speed_type speed_type)
}
clear_bit(QCA_DROP_VENDOR_EVENT, &qca->flags);
+ break;
+
+ default:
+ break;
}
}
@@ -1627,12 +1677,20 @@ static int qca_regulator_init(struct hci_uart *hu)
}
}
- if (qca_is_wcn399x(soc_type)) {
+ switch (soc_type) {
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
/* Forcefully enable wcn399x to enter in to boot mode. */
host_set_baudrate(hu, 2400);
ret = qca_send_power_pulse(hu, false);
if (ret)
return ret;
+ break;
+
+ default:
+ break;
}
/* For wcn6750 need to enable gpio bt_en */
@@ -1649,10 +1707,18 @@ static int qca_regulator_init(struct hci_uart *hu)
qca_set_speed(hu, QCA_INIT_SPEED);
- if (qca_is_wcn399x(soc_type)) {
+ switch (soc_type) {
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
ret = qca_send_power_pulse(hu, true);
if (ret)
return ret;
+ break;
+
+ default:
+ break;
}
/* Now the device is in ready state to communicate with host.
@@ -1686,11 +1752,17 @@ static int qca_power_on(struct hci_dev *hdev)
if (!hu->serdev)
return 0;
- if (qca_is_wcn399x(soc_type) ||
- qca_is_wcn6750(soc_type) ||
- qca_is_wcn6855(soc_type)) {
+ switch (soc_type) {
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
ret = qca_regulator_init(hu);
- } else {
+ break;
+
+ default:
qcadev = serdev_device_get_drvdata(hu->serdev);
if (qcadev->bt_en) {
gpiod_set_value_cansleep(qcadev->bt_en, 1);
@@ -1713,6 +1785,7 @@ static int qca_setup(struct hci_uart *hu)
const char *firmware_name = qca_get_firmware_name(hu);
int ret;
struct qca_btsoc_version ver;
+ const char *soc_name;
ret = qca_check_speeds(hu);
if (ret)
@@ -1727,10 +1800,26 @@ static int qca_setup(struct hci_uart *hu)
*/
set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
- bt_dev_info(hdev, "setting up %s",
- qca_is_wcn399x(soc_type) ? "wcn399x" :
- (soc_type == QCA_WCN6750) ? "wcn6750" :
- (soc_type == QCA_WCN6855) ? "wcn6855" : "ROME/QCA6390");
+ switch (soc_type) {
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ soc_name = "wcn399x";
+ break;
+
+ case QCA_WCN6750:
+ soc_name = "wcn6750";
+ break;
+
+ case QCA_WCN6855:
+ soc_name = "wcn6855";
+ break;
+
+ default:
+ soc_name = "ROME/QCA6390";
+ }
+ bt_dev_info(hdev, "setting up %s", soc_name);
qca->memdump_state = QCA_MEMDUMP_IDLE;
@@ -1741,15 +1830,21 @@ static int qca_setup(struct hci_uart *hu)
clear_bit(QCA_SSR_TRIGGERED, &qca->flags);
- if (qca_is_wcn399x(soc_type) ||
- qca_is_wcn6750(soc_type) ||
- qca_is_wcn6855(soc_type)) {
+ switch (soc_type) {
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
ret = qca_read_soc_version(hdev, &ver, soc_type);
if (ret)
goto out;
- } else {
+ break;
+
+ default:
qca_set_speed(hu, QCA_INIT_SPEED);
}
@@ -1763,9 +1858,16 @@ static int qca_setup(struct hci_uart *hu)
qca_baudrate = qca_get_baudrate_value(speed);
}
- if (!(qca_is_wcn399x(soc_type) ||
- qca_is_wcn6750(soc_type) ||
- qca_is_wcn6855(soc_type))) {
+ switch (soc_type) {
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
+ break;
+
+ default:
/* Get QCA version information */
ret = qca_read_soc_version(hdev, &ver, soc_type);
if (ret)
@@ -1941,11 +2043,18 @@ static void qca_power_shutdown(struct hci_uart *hu)
qcadev = serdev_device_get_drvdata(hu->serdev);
- if (qca_is_wcn399x(soc_type)) {
+ switch (soc_type) {
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
host_set_baudrate(hu, 2400);
qca_send_power_pulse(hu, false);
qca_regulator_disable(qcadev);
- } else if (soc_type == QCA_WCN6750 || soc_type == QCA_WCN6855) {
+ break;
+
+ case QCA_WCN6750:
+ case QCA_WCN6855:
gpiod_set_value_cansleep(qcadev->bt_en, 0);
msleep(100);
qca_regulator_disable(qcadev);
@@ -1953,7 +2062,9 @@ static void qca_power_shutdown(struct hci_uart *hu)
sw_ctrl_state = gpiod_get_value_cansleep(qcadev->sw_ctrl);
bt_dev_dbg(hu->hdev, "SW_CTRL is %d", sw_ctrl_state);
}
- } else if (qcadev->bt_en) {
+ break;
+
+ default:
gpiod_set_value_cansleep(qcadev->bt_en, 0);
}
@@ -2078,11 +2189,18 @@ static int qca_serdev_probe(struct serdev_device *serdev)
if (!qcadev->oper_speed)
BT_DBG("UART will pick default operating speed");
- if (data &&
- (qca_is_wcn399x(data->soc_type) ||
- qca_is_wcn6750(data->soc_type) ||
- qca_is_wcn6855(data->soc_type))) {
+ if (data)
qcadev->btsoc_type = data->soc_type;
+ else
+ qcadev->btsoc_type = QCA_ROME;
+
+ switch (qcadev->btsoc_type) {
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
qcadev->bt_power = devm_kzalloc(&serdev->dev,
sizeof(struct qca_power),
GFP_KERNEL);
@@ -2126,12 +2244,9 @@ static int qca_serdev_probe(struct serdev_device *serdev)
BT_ERR("wcn3990 serdev registration failed");
return err;
}
- } else {
- if (data)
- qcadev->btsoc_type = data->soc_type;
- else
- qcadev->btsoc_type = QCA_ROME;
+ break;
+ default:
qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable",
GPIOD_OUT_LOW);
if (IS_ERR(qcadev->bt_en)) {
@@ -2187,13 +2302,23 @@ static void qca_serdev_remove(struct serdev_device *serdev)
struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
struct qca_power *power = qcadev->bt_power;
- if ((qca_is_wcn399x(qcadev->btsoc_type) ||
- 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);
+ switch (qcadev->btsoc_type) {
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
+ if (power->vregs_on) {
+ qca_power_shutdown(&qcadev->serdev_hu);
+ break;
+ }
+ fallthrough;
+
+ default:
+ if (qcadev->susclk)
+ clk_disable_unprepare(qcadev->susclk);
+ }
hci_uart_unregister_device(&qcadev->serdev_hu);
}
