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path: root/drivers/bluetooth/hci_qca.c
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Diffstat (limited to 'drivers/bluetooth/hci_qca.c')
-rw-r--r--drivers/bluetooth/hci_qca.c1079
1 files changed, 836 insertions, 243 deletions
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 81c3c38baba1..888176b0faa9 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -25,13 +25,15 @@
#include <linux/gpio/consumer.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
#include <linux/acpi.h>
#include <linux/platform_device.h>
+#include <linux/pwrseq/consumer.h>
#include <linux/regulator/consumer.h>
#include <linux/serdev.h>
+#include <linux/string_choices.h>
#include <linux/mutex.h>
-#include <asm/unaligned.h>
+#include <linux/unaligned.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
@@ -46,10 +48,13 @@
#define HCI_MAX_IBS_SIZE 10
#define IBS_WAKE_RETRANS_TIMEOUT_MS 100
-#define IBS_BTSOC_TX_IDLE_TIMEOUT_MS 40
+#define IBS_BTSOC_TX_IDLE_TIMEOUT_MS 200
#define IBS_HOST_TX_IDLE_TIMEOUT_MS 2000
#define CMD_TRANS_TIMEOUT_MS 100
#define MEMDUMP_TIMEOUT_MS 8000
+#define IBS_DISABLE_SSR_TIMEOUT_MS \
+ (MEMDUMP_TIMEOUT_MS + FW_DOWNLOAD_TIMEOUT_MS)
+#define FW_DOWNLOAD_TIMEOUT_MS 3000
/* susclk rate */
#define SUSCLK_RATE_32KHZ 32768
@@ -68,15 +73,20 @@
#define QCA_MEMDUMP_BYTE 0xFB
enum qca_flags {
- QCA_IBS_ENABLED,
+ QCA_IBS_DISABLED,
QCA_DROP_VENDOR_EVENT,
QCA_SUSPENDING,
QCA_MEMDUMP_COLLECTION,
- QCA_HW_ERROR_EVENT
+ QCA_HW_ERROR_EVENT,
+ QCA_SSR_TRIGGERED,
+ QCA_BT_OFF,
+ QCA_ROM_FW,
+ QCA_DEBUGFS_CREATED,
};
enum qca_capabilities {
QCA_CAP_WIDEBAND_SPEECH = BIT(0),
+ QCA_CAP_VALID_LE_STATES = BIT(1),
};
/* HCI_IBS transmit side sleep protocol states */
@@ -109,9 +119,7 @@ enum qca_memdump_states {
QCA_MEMDUMP_TIMEOUT,
};
-struct qca_memdump_data {
- char *memdump_buf_head;
- char *memdump_buf_tail;
+struct qca_memdump_info {
u32 current_seq_no;
u32 received_dump;
u32 ram_dump_size;
@@ -121,13 +129,13 @@ struct qca_memdump_event_hdr {
__u8 evt;
__u8 plen;
__u16 opcode;
- __u16 seq_no;
+ __le16 seq_no;
__u8 reserved;
} __packed;
struct qca_dump_size {
- u32 dump_size;
+ __le32 dump_size;
} __packed;
struct qca_data {
@@ -152,13 +160,15 @@ struct qca_data {
struct work_struct ws_tx_vote_off;
struct work_struct ctrl_memdump_evt;
struct delayed_work ctrl_memdump_timeout;
- struct qca_memdump_data *qca_memdump;
+ struct qca_memdump_info *qca_memdump;
unsigned long flags;
struct completion drop_ev_comp;
wait_queue_head_t suspend_wait_q;
enum qca_memdump_states memdump_state;
struct mutex hci_memdump_lock;
+ u16 fw_version;
+ u16 controller_id;
/* For debugging purpose */
u64 ibs_sent_wacks;
u64 ibs_sent_slps;
@@ -206,17 +216,20 @@ struct qca_power {
struct regulator_bulk_data *vreg_bulk;
int num_vregs;
bool vregs_on;
+ struct pwrseq_desc *pwrseq;
};
struct qca_serdev {
struct hci_uart serdev_hu;
struct gpio_desc *bt_en;
+ struct gpio_desc *sw_ctrl;
struct clk *susclk;
enum qca_btsoc_type btsoc_type;
struct qca_power *bt_power;
u32 init_speed;
u32 oper_speed;
- const char *firmware_name;
+ bool bdaddr_property_broken;
+ const char *firmware_name[2];
};
static int qca_regulator_enable(struct qca_serdev *qcadev);
@@ -224,6 +237,7 @@ static void qca_regulator_disable(struct qca_serdev *qcadev);
static void qca_power_shutdown(struct hci_uart *hu);
static int qca_power_off(struct hci_dev *hdev);
static void qca_controller_memdump(struct work_struct *work);
+static void qca_dmp_hdr(struct hci_dev *hdev, struct sk_buff *skb);
static enum qca_btsoc_type qca_soc_type(struct hci_uart *hu)
{
@@ -245,7 +259,18 @@ static const char *qca_get_firmware_name(struct hci_uart *hu)
if (hu->serdev) {
struct qca_serdev *qsd = serdev_device_get_drvdata(hu->serdev);
- return qsd->firmware_name;
+ return qsd->firmware_name[0];
+ } else {
+ return NULL;
+ }
+}
+
+static const char *qca_get_rampatch_name(struct hci_uart *hu)
+{
+ if (hu->serdev) {
+ struct qca_serdev *qsd = serdev_device_get_drvdata(hu->serdev);
+
+ return qsd->firmware_name[1];
} else {
return NULL;
}
@@ -289,25 +314,21 @@ static void serial_clock_vote(unsigned long vote, struct hci_uart *hu)
case HCI_IBS_TX_VOTE_CLOCK_ON:
qca->tx_vote = true;
qca->tx_votes_on++;
- new_vote = true;
break;
case HCI_IBS_RX_VOTE_CLOCK_ON:
qca->rx_vote = true;
qca->rx_votes_on++;
- new_vote = true;
break;
case HCI_IBS_TX_VOTE_CLOCK_OFF:
qca->tx_vote = false;
qca->tx_votes_off++;
- new_vote = qca->rx_vote | qca->tx_vote;
break;
case HCI_IBS_RX_VOTE_CLOCK_OFF:
qca->rx_vote = false;
qca->rx_votes_off++;
- new_vote = qca->rx_vote | qca->tx_vote;
break;
default:
@@ -315,14 +336,16 @@ static void serial_clock_vote(unsigned long vote, struct hci_uart *hu)
return;
}
+ new_vote = qca->rx_vote | qca->tx_vote;
+
if (new_vote != old_vote) {
if (new_vote)
__serial_clock_on(hu->tty);
else
__serial_clock_off(hu->tty);
- BT_DBG("Vote serial clock %s(%s)", new_vote ? "true" : "false",
- vote ? "true" : "false");
+ BT_DBG("Vote serial clock %s(%s)", str_true_false(new_vote),
+ str_true_false(vote));
diff = jiffies_to_msecs(jiffies - qca->vote_last_jif);
@@ -451,7 +474,7 @@ static void qca_wq_serial_tx_clock_vote_off(struct work_struct *work)
static void hci_ibs_tx_idle_timeout(struct timer_list *t)
{
- struct qca_data *qca = from_timer(qca, t, tx_idle_timer);
+ struct qca_data *qca = timer_container_of(qca, t, tx_idle_timer);
struct hci_uart *hu = qca->hu;
unsigned long flags;
@@ -474,8 +497,6 @@ static void hci_ibs_tx_idle_timeout(struct timer_list *t)
case HCI_IBS_TX_ASLEEP:
case HCI_IBS_TX_WAKING:
- /* Fall through */
-
default:
BT_ERR("Spurious timeout tx state %d", qca->tx_ibs_state);
break;
@@ -486,7 +507,7 @@ static void hci_ibs_tx_idle_timeout(struct timer_list *t)
static void hci_ibs_wake_retrans_timeout(struct timer_list *t)
{
- struct qca_data *qca = from_timer(qca, t, wake_retrans_timer);
+ struct qca_data *qca = timer_container_of(qca, t, wake_retrans_timer);
struct hci_uart *hu = qca->hu;
unsigned long flags, retrans_delay;
bool retransmit = false;
@@ -518,8 +539,6 @@ static void hci_ibs_wake_retrans_timeout(struct timer_list *t)
case HCI_IBS_TX_ASLEEP:
case HCI_IBS_TX_AWAKE:
- /* Fall through */
-
default:
BT_ERR("Spurious timeout tx state %d", qca->tx_ibs_state);
break;
@@ -564,7 +583,7 @@ static int qca_open(struct hci_uart *hu)
if (!hci_uart_has_flow_control(hu))
return -EOPNOTSUPP;
- qca = kzalloc(sizeof(struct qca_data), GFP_KERNEL);
+ qca = kzalloc(sizeof(*qca), GFP_KERNEL);
if (!qca)
return -ENOMEM;
@@ -603,8 +622,19 @@ 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))
+ switch (qcadev->btsoc_type) {
+ case QCA_WCN3950:
+ 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;
@@ -632,10 +662,13 @@ static void qca_debugfs_init(struct hci_dev *hdev)
if (!hdev->debugfs)
return;
+ if (test_and_set_bit(QCA_DEBUGFS_CREATED, &qca->flags))
+ return;
+
ibs_dir = debugfs_create_dir("ibs", hdev->debugfs);
/* read only */
- mode = S_IRUGO;
+ mode = 0444;
debugfs_create_u8("tx_ibs_state", mode, ibs_dir, &qca->tx_ibs_state);
debugfs_create_u8("rx_ibs_state", mode, ibs_dir, &qca->rx_ibs_state);
debugfs_create_u64("ibs_sent_sleeps", mode, ibs_dir,
@@ -662,7 +695,7 @@ static void qca_debugfs_init(struct hci_dev *hdev)
debugfs_create_u32("vote_off_ms", mode, ibs_dir, &qca->vote_off_ms);
/* read/write */
- mode = S_IRUGO | S_IWUSR;
+ mode = 0644;
debugfs_create_u32("wake_retrans", mode, ibs_dir, &qca->wake_retrans);
debugfs_create_u32("tx_idle_delay", mode, ibs_dir,
&qca->tx_idle_delay);
@@ -693,13 +726,17 @@ static int qca_close(struct hci_uart *hu)
skb_queue_purge(&qca->tx_wait_q);
skb_queue_purge(&qca->txq);
skb_queue_purge(&qca->rx_memdump_q);
- del_timer(&qca->tx_idle_timer);
- del_timer(&qca->wake_retrans_timer);
+ /*
+ * Shut the timers down so they can't be rearmed when
+ * destroy_workqueue() drains pending work which in turn might try
+ * to arm a timer. After shutdown rearm attempts are silently
+ * ignored by the timer core code.
+ */
+ timer_shutdown_sync(&qca->tx_idle_timer);
+ timer_shutdown_sync(&qca->wake_retrans_timer);
destroy_workqueue(qca->workqueue);
qca->hu = NULL;
- qca_power_shutdown(hu);
-
kfree_skb(qca->rx_skb);
hu->priv = NULL;
@@ -830,15 +867,13 @@ static void device_woke_up(struct hci_uart *hu)
skb_queue_tail(&qca->txq, skb);
/* Switch timers and change state to HCI_IBS_TX_AWAKE */
- del_timer(&qca->wake_retrans_timer);
+ timer_delete(&qca->wake_retrans_timer);
idle_delay = msecs_to_jiffies(qca->tx_idle_delay);
mod_timer(&qca->tx_idle_timer, jiffies + idle_delay);
qca->tx_ibs_state = HCI_IBS_TX_AWAKE;
break;
case HCI_IBS_TX_ASLEEP:
- /* Fall through */
-
default:
BT_ERR("Received HCI_IBS_WAKE_ACK in tx state %d",
qca->tx_ibs_state);
@@ -851,7 +886,7 @@ static void device_woke_up(struct hci_uart *hu)
hci_uart_tx_wakeup(hu);
}
-/* Enqueue frame for transmittion (padding, crc, etc) may be called from
+/* Enqueue frame for transmission (padding, crc, etc) may be called from
* two simultaneous tasklets.
*/
static int qca_enqueue(struct hci_uart *hu, struct sk_buff *skb)
@@ -862,6 +897,13 @@ static int qca_enqueue(struct hci_uart *hu, struct sk_buff *skb)
BT_DBG("hu %p qca enq skb %p tx_ibs_state %d", hu, skb,
qca->tx_ibs_state);
+ if (test_bit(QCA_SSR_TRIGGERED, &qca->flags)) {
+ /* As SSR is in progress, ignore the packets */
+ bt_dev_dbg(hu->hdev, "SSR is in progress");
+ kfree_skb(skb);
+ return 0;
+ }
+
/* Prepend skb with frame type */
memcpy(skb_push(skb, 1), &hci_skb_pkt_type(skb), 1);
@@ -871,7 +913,7 @@ static int qca_enqueue(struct hci_uart *hu, struct sk_buff *skb)
* Out-Of-Band(GPIOs control) sleep is selected.
* Don't wake the device up when suspending.
*/
- if (!test_bit(QCA_IBS_ENABLED, &qca->flags) ||
+ if (test_bit(QCA_IBS_DISABLED, &qca->flags) ||
test_bit(QCA_SUSPENDING, &qca->flags)) {
skb_queue_tail(&qca->txq, skb);
spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);
@@ -906,7 +948,7 @@ static int qca_enqueue(struct hci_uart *hu, struct sk_buff *skb)
default:
BT_ERR("Illegal tx state: %d (losing packet)",
qca->tx_ibs_state);
- kfree_skb(skb);
+ dev_kfree_skb_irq(skb);
break;
}
@@ -964,6 +1006,28 @@ static int qca_recv_acl_data(struct hci_dev *hdev, struct sk_buff *skb)
return hci_recv_frame(hdev, skb);
}
+static void qca_dmp_hdr(struct hci_dev *hdev, struct sk_buff *skb)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+ struct qca_data *qca = hu->priv;
+ char buf[80];
+
+ snprintf(buf, sizeof(buf), "Controller Name: 0x%x\n",
+ qca->controller_id);
+ skb_put_data(skb, buf, strlen(buf));
+
+ snprintf(buf, sizeof(buf), "Firmware Version: 0x%x\n",
+ qca->fw_version);
+ skb_put_data(skb, buf, strlen(buf));
+
+ snprintf(buf, sizeof(buf), "Vendor:Qualcomm\n");
+ skb_put_data(skb, buf, strlen(buf));
+
+ snprintf(buf, sizeof(buf), "Driver: %s\n",
+ hu->serdev->dev.driver->name);
+ skb_put_data(skb, buf, strlen(buf));
+}
+
static void qca_controller_memdump(struct work_struct *work)
{
struct qca_data *qca = container_of(work, struct qca_data,
@@ -971,27 +1035,27 @@ static void qca_controller_memdump(struct work_struct *work)
struct hci_uart *hu = qca->hu;
struct sk_buff *skb;
struct qca_memdump_event_hdr *cmd_hdr;
- struct qca_memdump_data *qca_memdump = qca->qca_memdump;
+ struct qca_memdump_info *qca_memdump = qca->qca_memdump;
struct qca_dump_size *dump;
- char *memdump_buf;
- char nullBuff[QCA_DUMP_PACKET_SIZE] = { 0 };
u16 seq_no;
- u32 dump_size;
u32 rx_size;
+ int ret = 0;
enum qca_btsoc_type soc_type = qca_soc_type(hu);
while ((skb = skb_dequeue(&qca->rx_memdump_q))) {
mutex_lock(&qca->hci_memdump_lock);
- /* Skip processing the received packets if timeout detected. */
- if (qca->memdump_state == QCA_MEMDUMP_TIMEOUT) {
+ /* Skip processing the received packets if timeout detected
+ * or memdump collection completed.
+ */
+ if (qca->memdump_state == QCA_MEMDUMP_TIMEOUT ||
+ qca->memdump_state == QCA_MEMDUMP_COLLECTED) {
mutex_unlock(&qca->hci_memdump_lock);
return;
}
if (!qca_memdump) {
- qca_memdump = kzalloc(sizeof(struct qca_memdump_data),
- GFP_ATOMIC);
+ qca_memdump = kzalloc(sizeof(*qca_memdump), GFP_ATOMIC);
if (!qca_memdump) {
mutex_unlock(&qca->hci_memdump_lock);
return;
@@ -1008,61 +1072,69 @@ static void qca_controller_memdump(struct work_struct *work)
if (!seq_no) {
/* This is the first frame of memdump packet from
- * the controller, Disable IBS to recevie dump
+ * the controller, Disable IBS to receive dump
* with out any interruption, ideally time required for
* the controller to send the dump is 8 seconds. let us
* start timer to handle this asynchronous activity.
*/
- clear_bit(QCA_IBS_ENABLED, &qca->flags);
+ set_bit(QCA_IBS_DISABLED, &qca->flags);
set_bit(QCA_MEMDUMP_COLLECTION, &qca->flags);
dump = (void *) skb->data;
- dump_size = __le32_to_cpu(dump->dump_size);
- if (!(dump_size)) {
+ qca_memdump->ram_dump_size = __le32_to_cpu(dump->dump_size);
+ if (!(qca_memdump->ram_dump_size)) {
bt_dev_err(hu->hdev, "Rx invalid memdump size");
+ kfree(qca_memdump);
kfree_skb(skb);
mutex_unlock(&qca->hci_memdump_lock);
return;
}
- bt_dev_info(hu->hdev, "QCA collecting dump of size:%u",
- dump_size);
queue_delayed_work(qca->workqueue,
&qca->ctrl_memdump_timeout,
- msecs_to_jiffies(MEMDUMP_TIMEOUT_MS)
- );
-
- skb_pull(skb, sizeof(dump_size));
- memdump_buf = vmalloc(dump_size);
- qca_memdump->ram_dump_size = dump_size;
- qca_memdump->memdump_buf_head = memdump_buf;
- qca_memdump->memdump_buf_tail = memdump_buf;
- }
+ msecs_to_jiffies(MEMDUMP_TIMEOUT_MS));
+ skb_pull(skb, sizeof(qca_memdump->ram_dump_size));
+ qca_memdump->current_seq_no = 0;
+ qca_memdump->received_dump = 0;
+ ret = hci_devcd_init(hu->hdev, qca_memdump->ram_dump_size);
+ bt_dev_info(hu->hdev, "hci_devcd_init Return:%d",
+ ret);
+ if (ret < 0) {
+ kfree(qca->qca_memdump);
+ qca->qca_memdump = NULL;
+ qca->memdump_state = QCA_MEMDUMP_COLLECTED;
+ cancel_delayed_work(&qca->ctrl_memdump_timeout);
+ clear_bit(QCA_MEMDUMP_COLLECTION, &qca->flags);
+ clear_bit(QCA_IBS_DISABLED, &qca->flags);
+ mutex_unlock(&qca->hci_memdump_lock);
+ return;
+ }
+
+ bt_dev_info(hu->hdev, "QCA collecting dump of size:%u",
+ qca_memdump->ram_dump_size);
- memdump_buf = qca_memdump->memdump_buf_tail;
+ }
/* If sequence no 0 is missed then there is no point in
* accepting the other sequences.
*/
- if (!memdump_buf) {
+ if (!test_bit(QCA_MEMDUMP_COLLECTION, &qca->flags)) {
bt_dev_err(hu->hdev, "QCA: Discarding other packets");
kfree(qca_memdump);
kfree_skb(skb);
- qca->qca_memdump = NULL;
mutex_unlock(&qca->hci_memdump_lock);
return;
}
-
/* There could be chance of missing some packets from
* the controller. In such cases let us store the dummy
* packets in the buffer.
*/
/* For QCA6390, controller does not lost packets but
- * sequence number field of packat sometimes has error
+ * sequence number field of packet sometimes has error
* bits, so skip this checking for missing packet.
*/
while ((seq_no > qca_memdump->current_seq_no + 1) &&
- (soc_type != QCA_QCA6390) &&
- seq_no != QCA_LAST_SEQUENCE_NUM) {
+ (soc_type != QCA_QCA6390) &&
+ seq_no != QCA_LAST_SEQUENCE_NUM) {
bt_dev_err(hu->hdev, "QCA controller missed packet:%d",
qca_memdump->current_seq_no);
rx_size = qca_memdump->received_dump;
@@ -1073,43 +1145,38 @@ static void qca_controller_memdump(struct work_struct *work)
qca_memdump->received_dump);
break;
}
- memcpy(memdump_buf, nullBuff, QCA_DUMP_PACKET_SIZE);
- memdump_buf = memdump_buf + QCA_DUMP_PACKET_SIZE;
+ hci_devcd_append_pattern(hu->hdev, 0x00,
+ QCA_DUMP_PACKET_SIZE);
qca_memdump->received_dump += QCA_DUMP_PACKET_SIZE;
qca_memdump->current_seq_no++;
}
- rx_size = qca_memdump->received_dump + skb->len;
+ rx_size = qca_memdump->received_dump + skb->len;
if (rx_size <= qca_memdump->ram_dump_size) {
if ((seq_no != QCA_LAST_SEQUENCE_NUM) &&
- (seq_no != qca_memdump->current_seq_no))
+ (seq_no != qca_memdump->current_seq_no)) {
bt_dev_err(hu->hdev,
"QCA memdump unexpected packet %d",
seq_no);
+ }
bt_dev_dbg(hu->hdev,
"QCA memdump packet %d with length %d",
seq_no, skb->len);
- memcpy(memdump_buf, (unsigned char *)skb->data,
- skb->len);
- memdump_buf = memdump_buf + skb->len;
- qca_memdump->memdump_buf_tail = memdump_buf;
- qca_memdump->current_seq_no = seq_no + 1;
- qca_memdump->received_dump += skb->len;
+ hci_devcd_append(hu->hdev, skb);
+ qca_memdump->current_seq_no += 1;
+ qca_memdump->received_dump = rx_size;
} else {
bt_dev_err(hu->hdev,
- "QCA memdump received %d, no space for packet %d",
- qca_memdump->received_dump, seq_no);
+ "QCA memdump received no space for packet %d",
+ qca_memdump->current_seq_no);
}
- qca->qca_memdump = qca_memdump;
- kfree_skb(skb);
+
if (seq_no == QCA_LAST_SEQUENCE_NUM) {
bt_dev_info(hu->hdev,
- "QCA memdump Done, received %d, total %d",
- qca_memdump->received_dump,
- qca_memdump->ram_dump_size);
- memdump_buf = qca_memdump->memdump_buf_head;
- dev_coredumpv(&hu->serdev->dev, memdump_buf,
- qca_memdump->received_dump, GFP_KERNEL);
+ "QCA memdump Done, received %d, total %d",
+ qca_memdump->received_dump,
+ qca_memdump->ram_dump_size);
+ hci_devcd_complete(hu->hdev);
cancel_delayed_work(&qca->ctrl_memdump_timeout);
kfree(qca->qca_memdump);
qca->qca_memdump = NULL;
@@ -1128,6 +1195,7 @@ static int qca_controller_memdump_event(struct hci_dev *hdev,
struct hci_uart *hu = hci_get_drvdata(hdev);
struct qca_data *qca = hu->priv;
+ set_bit(QCA_SSR_TRIGGERED, &qca->flags);
skb_queue_tail(&qca->rx_memdump_q, skb);
queue_work(qca->workqueue, &qca->ctrl_memdump_evt);
@@ -1196,6 +1264,7 @@ static const struct h4_recv_pkt qca_recv_pkts[] = {
{ H4_RECV_ACL, .recv = qca_recv_acl_data },
{ H4_RECV_SCO, .recv = hci_recv_frame },
{ H4_RECV_EVENT, .recv = qca_recv_event },
+ { H4_RECV_ISO, .recv = hci_recv_frame },
{ QCA_IBS_WAKE_IND_EVENT, .recv = qca_ibs_wake_ind },
{ QCA_IBS_WAKE_ACK_EVENT, .recv = qca_ibs_wake_ack },
{ QCA_IBS_SLEEP_IND_EVENT, .recv = qca_ibs_sleep_ind },
@@ -1208,7 +1277,7 @@ static int qca_recv(struct hci_uart *hu, const void *data, int count)
if (!test_bit(HCI_UART_REGISTERED, &hu->flags))
return -EUNATCH;
- qca->rx_skb = h4_recv_buf(hu->hdev, qca->rx_skb, data, count,
+ qca->rx_skb = h4_recv_buf(hu, qca->rx_skb, data, count,
qca_recv_pkts, ARRAY_SIZE(qca_recv_pkts));
if (IS_ERR(qca->rx_skb)) {
int err = PTR_ERR(qca->rx_skb);
@@ -1298,10 +1367,21 @@ 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)))
- msleep(10);
- else
+ switch (qca_soc_type(hu)) {
+ case QCA_WCN3950:
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
+ case QCA_WCN7850:
+ usleep_range(1000, 10000);
+ break;
+
+ default:
msleep(300);
+ }
return 0;
}
@@ -1347,7 +1427,7 @@ static int qca_send_power_pulse(struct hci_uart *hu, bool on)
if (on)
msleep(100);
else
- msleep(10);
+ usleep_range(1000, 10000);
return 0;
}
@@ -1374,11 +1454,21 @@ 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))) {
+ switch (qca_soc_type(hu)) {
+ case QCA_WCN3950:
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
+ case QCA_WCN7850:
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;
@@ -1407,12 +1497,30 @@ 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))
+ switch (soc_type) {
+ case QCA_WCN3950:
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
+ case QCA_WCN7850:
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);
@@ -1424,10 +1532,24 @@ 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))
+ switch (soc_type) {
+ case QCA_WCN3950:
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
+ case QCA_WCN7850:
hci_uart_set_flow_control(hu, false);
+ break;
+
+ default:
+ break;
+ }
- if (soc_type == QCA_WCN3990) {
+ switch (soc_type) {
+ case QCA_WCN3990:
/* Wait for the controller to send the vendor event
* for the baudrate change command.
*/
@@ -1439,6 +1561,10 @@ error:
}
clear_bit(QCA_DROP_VENDOR_EVENT, &qca->flags);
+ break;
+
+ default:
+ break;
}
}
@@ -1485,9 +1611,8 @@ static void qca_hw_error(struct hci_dev *hdev, u8 code)
{
struct hci_uart *hu = hci_get_drvdata(hdev);
struct qca_data *qca = hu->priv;
- struct qca_memdump_data *qca_memdump = qca->qca_memdump;
- char *memdump_buf = NULL;
+ set_bit(QCA_SSR_TRIGGERED, &qca->flags);
set_bit(QCA_HW_ERROR_EVENT, &qca->flags);
bt_dev_info(hdev, "mem_dump_status: %d", qca->memdump_state);
@@ -1509,44 +1634,110 @@ static void qca_hw_error(struct hci_dev *hdev, u8 code)
qca_wait_for_dump_collection(hdev);
}
+ mutex_lock(&qca->hci_memdump_lock);
if (qca->memdump_state != QCA_MEMDUMP_COLLECTED) {
bt_dev_err(hu->hdev, "clearing allocated memory due to memdump timeout");
- mutex_lock(&qca->hci_memdump_lock);
- if (qca_memdump)
- memdump_buf = qca_memdump->memdump_buf_head;
- vfree(memdump_buf);
- kfree(qca_memdump);
- qca->qca_memdump = NULL;
+ hci_devcd_abort(hu->hdev);
+ if (qca->qca_memdump) {
+ kfree(qca->qca_memdump);
+ qca->qca_memdump = NULL;
+ }
qca->memdump_state = QCA_MEMDUMP_TIMEOUT;
cancel_delayed_work(&qca->ctrl_memdump_timeout);
- skb_queue_purge(&qca->rx_memdump_q);
- mutex_unlock(&qca->hci_memdump_lock);
+ }
+ mutex_unlock(&qca->hci_memdump_lock);
+
+ if (qca->memdump_state == QCA_MEMDUMP_TIMEOUT ||
+ qca->memdump_state == QCA_MEMDUMP_COLLECTED) {
cancel_work_sync(&qca->ctrl_memdump_evt);
+ skb_queue_purge(&qca->rx_memdump_q);
}
clear_bit(QCA_HW_ERROR_EVENT, &qca->flags);
}
-static void qca_cmd_timeout(struct hci_dev *hdev)
+static void qca_reset(struct hci_dev *hdev)
{
struct hci_uart *hu = hci_get_drvdata(hdev);
struct qca_data *qca = hu->priv;
- if (qca->memdump_state == QCA_MEMDUMP_IDLE)
+ set_bit(QCA_SSR_TRIGGERED, &qca->flags);
+ if (qca->memdump_state == QCA_MEMDUMP_IDLE) {
+ set_bit(QCA_MEMDUMP_COLLECTION, &qca->flags);
qca_send_crashbuffer(hu);
- else
- bt_dev_info(hdev, "Dump collection is in process");
+ qca_wait_for_dump_collection(hdev);
+ } else if (qca->memdump_state == QCA_MEMDUMP_COLLECTING) {
+ /* Let us wait here until memory dump collected or
+ * memory dump timer expired.
+ */
+ bt_dev_info(hdev, "waiting for dump to complete");
+ qca_wait_for_dump_collection(hdev);
+ }
+
+ mutex_lock(&qca->hci_memdump_lock);
+ if (qca->memdump_state != QCA_MEMDUMP_COLLECTED) {
+ qca->memdump_state = QCA_MEMDUMP_TIMEOUT;
+ if (!test_bit(QCA_HW_ERROR_EVENT, &qca->flags)) {
+ /* Inject hw error event to reset the device
+ * and driver.
+ */
+ hci_reset_dev(hu->hdev);
+ }
+ }
+ mutex_unlock(&qca->hci_memdump_lock);
+}
+
+static bool qca_wakeup(struct hci_dev *hdev)
+{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+ bool wakeup;
+
+ if (!hu->serdev)
+ return true;
+
+ /* BT SoC attached through the serial bus is handled by the serdev driver.
+ * So we need to use the device handle of the serdev driver to get the
+ * status of device may wakeup.
+ */
+ wakeup = device_may_wakeup(&hu->serdev->ctrl->dev);
+ bt_dev_dbg(hu->hdev, "wakeup status : %d", wakeup);
+
+ return wakeup;
}
-static int qca_wcn3990_init(struct hci_uart *hu)
+static int qca_port_reopen(struct hci_uart *hu)
{
+ int ret;
+
+ /* 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_regulator_init(struct hci_uart *hu)
+{
+ enum qca_btsoc_type soc_type = qca_soc_type(hu);
struct qca_serdev *qcadev;
int ret;
+ bool sw_ctrl_state;
/* Check for vregs status, may be hci down has turned
* off the voltage regulator.
*/
qcadev = serdev_device_get_drvdata(hu->serdev);
+
if (!qcadev->bt_power->vregs_on) {
serdev_device_close(hu->serdev);
ret = qca_regulator_enable(qcadev);
@@ -1560,32 +1751,53 @@ static int qca_wcn3990_init(struct hci_uart *hu)
}
}
- /* Forcefully enable wcn3990 to enter in to boot mode. */
- host_set_baudrate(hu, 2400);
- ret = qca_send_power_pulse(hu, false);
- if (ret)
- return ret;
+ switch (soc_type) {
+ case QCA_WCN3950:
+ 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;
- qca_set_speed(hu, QCA_INIT_SPEED);
- ret = qca_send_power_pulse(hu, true);
- if (ret)
- return ret;
+ default:
+ break;
+ }
- /* 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;
+ /* For wcn6750 need to enable gpio bt_en */
+ if (qcadev->bt_en) {
+ gpiod_set_value_cansleep(qcadev->bt_en, 0);
+ msleep(50);
+ gpiod_set_value_cansleep(qcadev->bt_en, 1);
+ msleep(50);
+ if (qcadev->sw_ctrl) {
+ sw_ctrl_state = gpiod_get_value_cansleep(qcadev->sw_ctrl);
+ bt_dev_dbg(hu->hdev, "SW_CTRL is %d", sw_ctrl_state);
+ }
}
- hci_uart_set_flow_control(hu, false);
+ qca_set_speed(hu, QCA_INIT_SPEED);
- return 0;
+ switch (soc_type) {
+ case QCA_WCN3950:
+ 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;
+ }
+
+ return qca_port_reopen(hu);
}
static int qca_power_on(struct hci_dev *hdev)
@@ -1593,6 +1805,7 @@ static int qca_power_on(struct hci_dev *hdev)
struct hci_uart *hu = hci_get_drvdata(hdev);
enum qca_btsoc_type soc_type = qca_soc_type(hu);
struct qca_serdev *qcadev;
+ struct qca_data *qca = hu->priv;
int ret = 0;
/* Non-serdev device usually is powered by external power
@@ -1601,9 +1814,20 @@ static int qca_power_on(struct hci_dev *hdev)
if (!hu->serdev)
return 0;
- if (qca_is_wcn399x(soc_type)) {
- ret = qca_wcn3990_init(hu);
- } else {
+ switch (soc_type) {
+ case QCA_WCN3950:
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
+ case QCA_WCN7850:
+ case QCA_QCA6390:
+ ret = qca_regulator_init(hu);
+ break;
+
+ default:
qcadev = serdev_device_get_drvdata(hu->serdev);
if (qcadev->bt_en) {
gpiod_set_value_cansleep(qcadev->bt_en, 1);
@@ -1612,9 +1836,38 @@ static int qca_power_on(struct hci_dev *hdev)
}
}
+ clear_bit(QCA_BT_OFF, &qca->flags);
return ret;
}
+static void hci_coredump_qca(struct hci_dev *hdev)
+{
+ int err;
+ static const u8 param[] = { 0x26 };
+
+ err = __hci_cmd_send(hdev, 0xfc0c, 1, param);
+ if (err < 0)
+ bt_dev_err(hdev, "%s: trigger crash failed (%d)", __func__, err);
+}
+
+static int qca_get_data_path_id(struct hci_dev *hdev, __u8 *data_path_id)
+{
+ /* QCA uses 1 as non-HCI data path id for HFP */
+ *data_path_id = 1;
+ return 0;
+}
+
+static int qca_configure_hfp_offload(struct hci_dev *hdev)
+{
+ bt_dev_info(hdev, "HFP non-HCI data transport is supported");
+ hdev->get_data_path_id = qca_get_data_path_id;
+ /* Do not need to send HCI_Configure_Data_Path to configure non-HCI
+ * data transport path for QCA controllers, so set below field as NULL.
+ */
+ hdev->get_codec_config_data = NULL;
+ return 0;
+}
+
static int qca_setup(struct hci_uart *hu)
{
struct hci_dev *hdev = hu->hdev;
@@ -1623,36 +1876,85 @@ static int qca_setup(struct hci_uart *hu)
unsigned int retries = 0;
enum qca_btsoc_type soc_type = qca_soc_type(hu);
const char *firmware_name = qca_get_firmware_name(hu);
+ const char *rampatch_name = qca_get_rampatch_name(hu);
int ret;
- int soc_ver = 0;
+ struct qca_btsoc_version ver;
+ struct qca_serdev *qcadev;
+ const char *soc_name;
ret = qca_check_speeds(hu);
if (ret)
return ret;
+ clear_bit(QCA_ROM_FW, &qca->flags);
/* Patch downloading has to be done without IBS mode */
- clear_bit(QCA_IBS_ENABLED, &qca->flags);
+ set_bit(QCA_IBS_DISABLED, &qca->flags);
/* Enable controller to do both LE scan and BR/EDR inquiry
* simultaneously.
*/
- set_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks);
+ hci_set_quirk(hdev, HCI_QUIRK_SIMULTANEOUS_DISCOVERY);
+
+ switch (soc_type) {
+ case QCA_QCA2066:
+ soc_name = "qca2066";
+ break;
+
+ case QCA_WCN3950:
+ 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;
+
+ case QCA_WCN7850:
+ soc_name = "wcn7850";
+ break;
- bt_dev_info(hdev, "setting up %s",
- qca_is_wcn399x(soc_type) ? "wcn399x" : "ROME/QCA6390");
+ default:
+ soc_name = "ROME/QCA6390";
+ }
+ bt_dev_info(hdev, "setting up %s", soc_name);
+
+ qca->memdump_state = QCA_MEMDUMP_IDLE;
retry:
ret = qca_power_on(hdev);
if (ret)
- return ret;
+ goto out;
+
+ clear_bit(QCA_SSR_TRIGGERED, &qca->flags);
+
+ switch (soc_type) {
+ case QCA_WCN3950:
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
+ case QCA_WCN7850:
+ qcadev = serdev_device_get_drvdata(hu->serdev);
+ if (qcadev->bdaddr_property_broken)
+ hci_set_quirk(hdev, HCI_QUIRK_BDADDR_PROPERTY_BROKEN);
- if (qca_is_wcn399x(soc_type)) {
- set_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks);
+ hci_set_aosp_capable(hdev);
- ret = qca_read_soc_version(hdev, &soc_ver, soc_type);
+ ret = qca_read_soc_version(hdev, &ver, soc_type);
if (ret)
- return ret;
- } else {
+ goto out;
+ break;
+
+ default:
qca_set_speed(hu, QCA_INIT_SPEED);
}
@@ -1661,50 +1963,68 @@ retry:
if (speed) {
ret = qca_set_speed(hu, QCA_OPER_SPEED);
if (ret)
- return ret;
+ goto out;
qca_baudrate = qca_get_baudrate_value(speed);
}
- if (!qca_is_wcn399x(soc_type)) {
+ switch (soc_type) {
+ case QCA_WCN3950:
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
+ case QCA_WCN7850:
+ break;
+
+ default:
/* Get QCA version information */
- ret = qca_read_soc_version(hdev, &soc_ver, soc_type);
+ ret = qca_read_soc_version(hdev, &ver, soc_type);
if (ret)
- return ret;
+ goto out;
}
- bt_dev_info(hdev, "QCA controller version 0x%08x", soc_ver);
/* Setup patch / NVM configurations */
- ret = qca_uart_setup(hdev, qca_baudrate, soc_type, soc_ver,
- firmware_name);
+ ret = qca_uart_setup(hdev, qca_baudrate, soc_type, ver,
+ firmware_name, rampatch_name);
if (!ret) {
- set_bit(QCA_IBS_ENABLED, &qca->flags);
+ clear_bit(QCA_IBS_DISABLED, &qca->flags);
qca_debugfs_init(hdev);
hu->hdev->hw_error = qca_hw_error;
- hu->hdev->cmd_timeout = qca_cmd_timeout;
+ hu->hdev->reset = qca_reset;
+ if (hu->serdev) {
+ if (device_can_wakeup(hu->serdev->ctrl->dev.parent))
+ hu->hdev->wakeup = qca_wakeup;
+ }
} else if (ret == -ENOENT) {
/* No patch/nvm-config found, run with original fw/config */
+ set_bit(QCA_ROM_FW, &qca->flags);
ret = 0;
} else if (ret == -EAGAIN) {
/*
* Userspace firmware loader will return -EAGAIN in case no
* patch/nvm-config is found, so run with original fw/config.
*/
+ set_bit(QCA_ROM_FW, &qca->flags);
ret = 0;
- } else {
- if (retries < MAX_INIT_RETRIES) {
- qca_power_shutdown(hu);
- if (hu->serdev) {
- serdev_device_close(hu->serdev);
- ret = serdev_device_open(hu->serdev);
- if (ret) {
- bt_dev_err(hdev, "failed to open port");
- return ret;
- }
+ }
+
+out:
+ if (ret && retries < MAX_INIT_RETRIES) {
+ bt_dev_warn(hdev, "Retry BT power ON:%d", retries);
+ qca_power_shutdown(hu);
+ if (hu->serdev) {
+ serdev_device_close(hu->serdev);
+ ret = serdev_device_open(hu->serdev);
+ if (ret) {
+ bt_dev_err(hdev, "failed to open port");
+ return ret;
}
- retries++;
- goto retry;
}
+ retries++;
+ goto retry;
}
/* Setup bdaddr */
@@ -1713,6 +2033,13 @@ retry:
else
hu->hdev->set_bdaddr = qca_set_bdaddr;
+ if (soc_type == QCA_QCA2066)
+ qca_configure_hfp_offload(hdev);
+
+ qca->fw_version = le16_to_cpu(ver.patch_ver);
+ qca->controller_id = le16_to_cpu(ver.rom_ver);
+ hci_devcd_register(hdev, hci_coredump_qca, qca_dmp_hdr, NULL);
+
return ret;
}
@@ -1731,7 +2058,29 @@ static const struct hci_uart_proto qca_proto = {
.dequeue = qca_dequeue,
};
-static const struct qca_device_data qca_soc_data_wcn3990 = {
+static const struct qca_device_data qca_soc_data_wcn3950 __maybe_unused = {
+ .soc_type = QCA_WCN3950,
+ .vregs = (struct qca_vreg []) {
+ { "vddio", 15000 },
+ { "vddxo", 60000 },
+ { "vddrf", 155000 },
+ { "vddch0", 585000 },
+ },
+ .num_vregs = 4,
+};
+
+static const struct qca_device_data qca_soc_data_wcn3988 __maybe_unused = {
+ .soc_type = QCA_WCN3988,
+ .vregs = (struct qca_vreg []) {
+ { "vddio", 15000 },
+ { "vddxo", 80000 },
+ { "vddrf", 300000 },
+ { "vddch0", 450000 },
+ },
+ .num_vregs = 4,
+};
+
+static const struct qca_device_data qca_soc_data_wcn3990 __maybe_unused = {
.soc_type = QCA_WCN3990,
.vregs = (struct qca_vreg []) {
{ "vddio", 15000 },
@@ -1742,7 +2091,7 @@ static const struct qca_device_data qca_soc_data_wcn3990 = {
.num_vregs = 4,
};
-static const struct qca_device_data qca_soc_data_wcn3991 = {
+static const struct qca_device_data qca_soc_data_wcn3991 __maybe_unused = {
.soc_type = QCA_WCN3991,
.vregs = (struct qca_vreg []) {
{ "vddio", 15000 },
@@ -1751,10 +2100,10 @@ static const struct qca_device_data qca_soc_data_wcn3991 = {
{ "vddch0", 450000 },
},
.num_vregs = 4,
- .capabilities = QCA_CAP_WIDEBAND_SPEECH,
+ .capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES,
};
-static const struct qca_device_data qca_soc_data_wcn3998 = {
+static const struct qca_device_data qca_soc_data_wcn3998 __maybe_unused = {
.soc_type = QCA_WCN3998,
.vregs = (struct qca_vreg []) {
{ "vddio", 10000 },
@@ -1765,45 +2114,121 @@ static const struct qca_device_data qca_soc_data_wcn3998 = {
.num_vregs = 4,
};
-static const struct qca_device_data qca_soc_data_qca6390 = {
+static const struct qca_device_data qca_soc_data_qca2066 __maybe_unused = {
+ .soc_type = QCA_QCA2066,
+ .num_vregs = 0,
+ .capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES,
+};
+
+static const struct qca_device_data qca_soc_data_qca6390 __maybe_unused = {
.soc_type = QCA_QCA6390,
.num_vregs = 0,
};
+static const struct qca_device_data qca_soc_data_wcn6750 __maybe_unused = {
+ .soc_type = QCA_WCN6750,
+ .vregs = (struct qca_vreg []) {
+ { "vddio", 5000 },
+ { "vddaon", 26000 },
+ { "vddbtcxmx", 126000 },
+ { "vddrfacmn", 12500 },
+ { "vddrfa0p8", 102000 },
+ { "vddrfa1p7", 302000 },
+ { "vddrfa1p2", 257000 },
+ { "vddrfa2p2", 1700000 },
+ { "vddasd", 200 },
+ },
+ .num_vregs = 9,
+ .capabilities = QCA_CAP_WIDEBAND_SPEECH | QCA_CAP_VALID_LE_STATES,
+};
+
+static const struct qca_device_data qca_soc_data_wcn6855 __maybe_unused = {
+ .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 const struct qca_device_data qca_soc_data_wcn7850 __maybe_unused = {
+ .soc_type = QCA_WCN7850,
+ .vregs = (struct qca_vreg []) {
+ { "vddio", 5000 },
+ { "vddaon", 26000 },
+ { "vdddig", 126000 },
+ { "vddrfa0p8", 102000 },
+ { "vddrfa1p2", 257000 },
+ { "vddrfa1p9", 302000 },
+ },
+ .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;
struct qca_data *qca = hu->priv;
unsigned long flags;
enum qca_btsoc_type soc_type = qca_soc_type(hu);
-
- qcadev = serdev_device_get_drvdata(hu->serdev);
+ bool sw_ctrl_state;
+ struct qca_power *power;
/* From this point we go into power off state. But serial port is
* still open, stop queueing the IBS data and flush all the buffered
* data in skb's.
*/
spin_lock_irqsave(&qca->hci_ibs_lock, flags);
- clear_bit(QCA_IBS_ENABLED, &qca->flags);
+ set_bit(QCA_IBS_DISABLED, &qca->flags);
qca_flush(hu);
spin_unlock_irqrestore(&qca->hci_ibs_lock, flags);
- hu->hdev->hw_error = NULL;
- hu->hdev->cmd_timeout = NULL;
-
/* Non-serdev device usually is powered by external power
* and don't need additional action in driver for power down
*/
if (!hu->serdev)
return;
- if (qca_is_wcn399x(soc_type)) {
+ qcadev = serdev_device_get_drvdata(hu->serdev);
+ power = qcadev->bt_power;
+
+ if (power && power->pwrseq) {
+ pwrseq_power_off(power->pwrseq);
+ set_bit(QCA_BT_OFF, &qca->flags);
+ return;
+ }
+
+ 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 (qcadev->bt_en) {
+ break;
+
+ case QCA_WCN6750:
+ case QCA_WCN6855:
+ gpiod_set_value_cansleep(qcadev->bt_en, 0);
+ msleep(100);
+ qca_regulator_disable(qcadev);
+ if (qcadev->sw_ctrl) {
+ sw_ctrl_state = gpiod_get_value_cansleep(qcadev->sw_ctrl);
+ bt_dev_dbg(hu->hdev, "SW_CTRL is %d", sw_ctrl_state);
+ }
+ break;
+
+ default:
gpiod_set_value_cansleep(qcadev->bt_en, 0);
}
+
+ set_bit(QCA_BT_OFF, &qca->flags);
}
static int qca_power_off(struct hci_dev *hdev)
@@ -1812,6 +2237,12 @@ static int qca_power_off(struct hci_dev *hdev)
struct qca_data *qca = hu->priv;
enum qca_btsoc_type soc_type = qca_soc_type(hu);
+ hu->hdev->hw_error = NULL;
+ hu->hdev->reset = NULL;
+
+ timer_delete_sync(&qca->wake_retrans_timer);
+ timer_delete_sync(&qca->tx_idle_timer);
+
/* Stop sending shutdown command if soc crashes. */
if (soc_type != QCA_ROME
&& qca->memdump_state == QCA_MEMDUMP_IDLE) {
@@ -1819,7 +2250,6 @@ static int qca_power_off(struct hci_dev *hdev)
usleep_range(8000, 10000);
}
- qca->memdump_state = QCA_MEMDUMP_IDLE;
qca_power_shutdown(hu);
return 0;
}
@@ -1829,6 +2259,9 @@ static int qca_regulator_enable(struct qca_serdev *qcadev)
struct qca_power *power = qcadev->bt_power;
int ret;
+ if (power->pwrseq)
+ return pwrseq_power_on(power->pwrseq);
+
/* Already enabled */
if (power->vregs_on)
return 0;
@@ -1912,21 +2345,72 @@ static int qca_serdev_probe(struct serdev_device *serdev)
qcadev->serdev_hu.serdev = serdev;
data = device_get_match_data(&serdev->dev);
serdev_device_set_drvdata(serdev, qcadev);
- device_property_read_string(&serdev->dev, "firmware-name",
- &qcadev->firmware_name);
+ device_property_read_string_array(&serdev->dev, "firmware-name",
+ qcadev->firmware_name, ARRAY_SIZE(qcadev->firmware_name));
device_property_read_u32(&serdev->dev, "max-speed",
&qcadev->oper_speed);
if (!qcadev->oper_speed)
BT_DBG("UART will pick default operating speed");
- if (data && qca_is_wcn399x(data->soc_type)) {
+ qcadev->bdaddr_property_broken = device_property_read_bool(&serdev->dev,
+ "qcom,local-bd-address-broken");
+
+ if (data)
qcadev->btsoc_type = data->soc_type;
+ else
+ qcadev->btsoc_type = QCA_ROME;
+
+ switch (qcadev->btsoc_type) {
+ case QCA_WCN3950:
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ case QCA_WCN6750:
+ case QCA_WCN6855:
+ case QCA_WCN7850:
+ case QCA_QCA6390:
qcadev->bt_power = devm_kzalloc(&serdev->dev,
sizeof(struct qca_power),
GFP_KERNEL);
if (!qcadev->bt_power)
return -ENOMEM;
+ break;
+ default:
+ break;
+ }
+ switch (qcadev->btsoc_type) {
+ case QCA_WCN6855:
+ case QCA_WCN7850:
+ case QCA_WCN6750:
+ if (!device_property_present(&serdev->dev, "enable-gpios")) {
+ /*
+ * Backward compatibility with old DT sources. If the
+ * node doesn't have the 'enable-gpios' property then
+ * let's use the power sequencer. Otherwise, let's
+ * drive everything ourselves.
+ */
+ qcadev->bt_power->pwrseq = devm_pwrseq_get(&serdev->dev,
+ "bluetooth");
+
+ /*
+ * Some modules have BT_EN enabled via a hardware pull-up,
+ * meaning it is not defined in the DTS and is not controlled
+ * through the power sequence. In such cases, fall through
+ * to follow the legacy flow.
+ */
+ if (IS_ERR(qcadev->bt_power->pwrseq))
+ qcadev->bt_power->pwrseq = NULL;
+ else
+ break;
+ }
+ fallthrough;
+ case QCA_WCN3950:
+ case QCA_WCN3988:
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
qcadev->bt_power->dev = &serdev->dev;
err = qca_init_regulators(qcadev->bt_power, data->vregs,
data->num_vregs);
@@ -1937,64 +2421,88 @@ static int qca_serdev_probe(struct serdev_device *serdev)
qcadev->bt_power->vregs_on = false;
+ qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(qcadev->bt_en))
+ return dev_err_probe(&serdev->dev,
+ PTR_ERR(qcadev->bt_en),
+ "failed to acquire BT_EN gpio\n");
+
+ if (!qcadev->bt_en &&
+ (data->soc_type == QCA_WCN6750 ||
+ data->soc_type == QCA_WCN6855))
+ power_ctrl_enabled = false;
+
+ qcadev->sw_ctrl = devm_gpiod_get_optional(&serdev->dev, "swctrl",
+ GPIOD_IN);
+ if (IS_ERR(qcadev->sw_ctrl) &&
+ (data->soc_type == QCA_WCN6750 ||
+ data->soc_type == QCA_WCN6855 ||
+ data->soc_type == QCA_WCN7850)) {
+ dev_err(&serdev->dev, "failed to acquire SW_CTRL gpio\n");
+ return PTR_ERR(qcadev->sw_ctrl);
+ }
+
qcadev->susclk = devm_clk_get_optional(&serdev->dev, NULL);
if (IS_ERR(qcadev->susclk)) {
dev_err(&serdev->dev, "failed to acquire clk\n");
return PTR_ERR(qcadev->susclk);
}
+ break;
- err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto);
- if (err) {
- BT_ERR("wcn3990 serdev registration failed");
- return err;
+ case QCA_QCA6390:
+ if (dev_of_node(&serdev->dev)) {
+ qcadev->bt_power->pwrseq = devm_pwrseq_get(&serdev->dev,
+ "bluetooth");
+ if (IS_ERR(qcadev->bt_power->pwrseq))
+ return PTR_ERR(qcadev->bt_power->pwrseq);
+ break;
}
- } else {
- if (data)
- qcadev->btsoc_type = data->soc_type;
- else
- qcadev->btsoc_type = QCA_ROME;
+ fallthrough;
+ default:
qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable",
GPIOD_OUT_LOW);
- if (!qcadev->bt_en) {
- dev_warn(&serdev->dev, "failed to acquire enable gpio\n");
- power_ctrl_enabled = false;
+ if (IS_ERR(qcadev->bt_en)) {
+ dev_err(&serdev->dev, "failed to acquire enable gpio\n");
+ return PTR_ERR(qcadev->bt_en);
}
- qcadev->susclk = devm_clk_get_optional(&serdev->dev, NULL);
- if (!qcadev->susclk) {
- dev_warn(&serdev->dev, "failed to acquire clk\n");
- } else {
- err = clk_set_rate(qcadev->susclk, SUSCLK_RATE_32KHZ);
- if (err)
- return err;
-
- err = clk_prepare_enable(qcadev->susclk);
- if (err)
- return err;
- }
+ if (!qcadev->bt_en)
+ power_ctrl_enabled = false;
- err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto);
- if (err) {
- BT_ERR("Rome serdev registration failed");
- if (qcadev->susclk)
- clk_disable_unprepare(qcadev->susclk);
- return err;
+ qcadev->susclk = devm_clk_get_optional_enabled_with_rate(
+ &serdev->dev, NULL, SUSCLK_RATE_32KHZ);
+ if (IS_ERR(qcadev->susclk)) {
+ dev_warn(&serdev->dev, "failed to acquire clk\n");
+ return PTR_ERR(qcadev->susclk);
}
}
+
+ err = hci_uart_register_device(&qcadev->serdev_hu, &qca_proto);
+ if (err) {
+ BT_ERR("serdev registration failed");
+ return err;
+ }
hdev = qcadev->serdev_hu.hdev;
if (power_ctrl_enabled) {
- set_bit(HCI_QUIRK_NON_PERSISTENT_SETUP, &hdev->quirks);
+ hci_set_quirk(hdev, HCI_QUIRK_NON_PERSISTENT_SETUP);
hdev->shutdown = qca_power_off;
}
- /* Wideband speech support must be set per driver since it can't be
- * queried via hci.
- */
- if (data && (data->capabilities & QCA_CAP_WIDEBAND_SPEECH))
- set_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks);
+ if (data) {
+ /* Wideband speech support must be set per driver since it can't
+ * be queried via hci. Same with the valid le states quirk.
+ */
+ if (data->capabilities & QCA_CAP_WIDEBAND_SPEECH)
+ hci_set_quirk(hdev,
+ HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED);
+
+ if (!(data->capabilities & QCA_CAP_VALID_LE_STATES))
+ hci_set_quirk(hdev, HCI_QUIRK_BROKEN_LE_STATES);
+ }
return 0;
}
@@ -2002,11 +2510,22 @@ static int qca_serdev_probe(struct serdev_device *serdev)
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_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:
+ case QCA_WCN7850:
+ if (power->vregs_on)
+ qca_power_shutdown(&qcadev->serdev_hu);
+ break;
+ default:
+ break;
+ }
hci_uart_unregister_device(&qcadev->serdev_hu);
}
@@ -2017,10 +2536,29 @@ static void qca_serdev_shutdown(struct device *dev)
int timeout = msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS);
struct serdev_device *serdev = to_serdev_device(dev);
struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
+ struct hci_uart *hu = &qcadev->serdev_hu;
+ struct hci_dev *hdev = hu->hdev;
const u8 ibs_wake_cmd[] = { 0xFD };
const u8 edl_reset_soc_cmd[] = { 0x01, 0x00, 0xFC, 0x01, 0x05 };
if (qcadev->btsoc_type == QCA_QCA6390) {
+ /* The purpose of sending the VSC is to reset SOC into a initial
+ * state and the state will ensure next hdev->setup() success.
+ * if HCI_QUIRK_NON_PERSISTENT_SETUP is set, it means that
+ * hdev->setup() can do its job regardless of SoC state, so
+ * don't need to send the VSC.
+ * if HCI_SETUP is set, it means that hdev->setup() was never
+ * invoked and the SOC is already in the initial state, so
+ * don't also need to send the VSC.
+ */
+ if (hci_test_quirk(hdev, HCI_QUIRK_NON_PERSISTENT_SETUP) ||
+ hci_dev_test_flag(hdev, HCI_SETUP))
+ return;
+
+ /* The serdev must be in open state when control logic arrives
+ * here, so also fix the use-after-free issue caused by that
+ * the serdev is flushed or wrote after it is closed.
+ */
serdev_device_write_flush(serdev);
ret = serdev_device_write_buf(serdev, ibs_wake_cmd,
sizeof(ibs_wake_cmd));
@@ -2050,15 +2588,47 @@ static int __maybe_unused qca_suspend(struct device *dev)
struct hci_uart *hu = &qcadev->serdev_hu;
struct qca_data *qca = hu->priv;
unsigned long flags;
+ bool tx_pending = false;
int ret = 0;
u8 cmd;
+ u32 wait_timeout = 0;
set_bit(QCA_SUSPENDING, &qca->flags);
- /* Device is downloading patch or doesn't support in-band sleep. */
- if (!test_bit(QCA_IBS_ENABLED, &qca->flags))
+ /* if BT SoC is running with default firmware then it does not
+ * support in-band sleep
+ */
+ if (test_bit(QCA_ROM_FW, &qca->flags))
return 0;
+ /* During SSR after memory dump collection, controller will be
+ * powered off and then powered on.If controller is powered off
+ * during SSR then we should wait until SSR is completed.
+ */
+ if (test_bit(QCA_BT_OFF, &qca->flags) &&
+ !test_bit(QCA_SSR_TRIGGERED, &qca->flags))
+ return 0;
+
+ if (test_bit(QCA_IBS_DISABLED, &qca->flags) ||
+ test_bit(QCA_SSR_TRIGGERED, &qca->flags)) {
+ wait_timeout = test_bit(QCA_SSR_TRIGGERED, &qca->flags) ?
+ IBS_DISABLE_SSR_TIMEOUT_MS :
+ FW_DOWNLOAD_TIMEOUT_MS;
+
+ /* QCA_IBS_DISABLED flag is set to true, During FW download
+ * and during memory dump collection. It is reset to false,
+ * After FW download complete.
+ */
+ wait_on_bit_timeout(&qca->flags, QCA_IBS_DISABLED,
+ TASK_UNINTERRUPTIBLE, msecs_to_jiffies(wait_timeout));
+
+ if (test_bit(QCA_IBS_DISABLED, &qca->flags)) {
+ bt_dev_err(hu->hdev, "SSR or FW download time out");
+ ret = -ETIMEDOUT;
+ goto error;
+ }
+ }
+
cancel_work_sync(&qca->ws_awake_device);
cancel_work_sync(&qca->ws_awake_rx);
@@ -2067,10 +2637,10 @@ static int __maybe_unused qca_suspend(struct device *dev)
switch (qca->tx_ibs_state) {
case HCI_IBS_TX_WAKING:
- del_timer(&qca->wake_retrans_timer);
- /* Fall through */
+ timer_delete(&qca->wake_retrans_timer);
+ fallthrough;
case HCI_IBS_TX_AWAKE:
- del_timer(&qca->tx_idle_timer);
+ timer_delete(&qca->tx_idle_timer);
serdev_device_write_flush(hu->serdev);
cmd = HCI_IBS_SLEEP_IND;
@@ -2083,8 +2653,7 @@ static int __maybe_unused qca_suspend(struct device *dev)
qca->tx_ibs_state = HCI_IBS_TX_ASLEEP;
qca->ibs_sent_slps++;
-
- qca_wq_serial_tx_clock_vote_off(&qca->ws_tx_vote_off);
+ tx_pending = true;
break;
case HCI_IBS_TX_ASLEEP:
@@ -2101,22 +2670,24 @@ static int __maybe_unused qca_suspend(struct device *dev)
if (ret < 0)
goto error;
- serdev_device_wait_until_sent(hu->serdev,
- msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS));
+ if (tx_pending) {
+ serdev_device_wait_until_sent(hu->serdev,
+ msecs_to_jiffies(CMD_TRANS_TIMEOUT_MS));
+ serial_clock_vote(HCI_IBS_TX_VOTE_CLOCK_OFF, hu);
+ }
/* Wait for HCI_IBS_SLEEP_IND sent by device to indicate its Tx is going
* to sleep, so that the packet does not wake the system later.
*/
-
ret = wait_event_interruptible_timeout(qca->suspend_wait_q,
qca->rx_ibs_state == HCI_IBS_RX_ASLEEP,
msecs_to_jiffies(IBS_BTSOC_TX_IDLE_TIMEOUT_MS));
-
- if (ret > 0)
- return 0;
-
- if (ret == 0)
+ if (ret == 0) {
ret = -ETIMEDOUT;
+ goto error;
+ }
+
+ return 0;
error:
clear_bit(QCA_SUSPENDING, &qca->flags);
@@ -2140,12 +2711,18 @@ static SIMPLE_DEV_PM_OPS(qca_pm_ops, qca_suspend, qca_resume);
#ifdef CONFIG_OF
static const struct of_device_id qca_bluetooth_of_match[] = {
+ { .compatible = "qcom,qca2066-bt", .data = &qca_soc_data_qca2066},
{ .compatible = "qcom,qca6174-bt" },
{ .compatible = "qcom,qca6390-bt", .data = &qca_soc_data_qca6390},
{ .compatible = "qcom,qca9377-bt" },
+ { .compatible = "qcom,wcn3950-bt", .data = &qca_soc_data_wcn3950},
+ { .compatible = "qcom,wcn3988-bt", .data = &qca_soc_data_wcn3988},
{ .compatible = "qcom,wcn3990-bt", .data = &qca_soc_data_wcn3990},
{ .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},
+ { .compatible = "qcom,wcn7850-bt", .data = &qca_soc_data_wcn7850},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, qca_bluetooth_of_match);
@@ -2153,6 +2730,7 @@ MODULE_DEVICE_TABLE(of, qca_bluetooth_of_match);
#ifdef CONFIG_ACPI
static const struct acpi_device_id qca_bluetooth_acpi_match[] = {
+ { "QCOM2066", (kernel_ulong_t)&qca_soc_data_qca2066 },
{ "QCOM6390", (kernel_ulong_t)&qca_soc_data_qca6390 },
{ "DLA16390", (kernel_ulong_t)&qca_soc_data_qca6390 },
{ "DLB16390", (kernel_ulong_t)&qca_soc_data_qca6390 },
@@ -2162,6 +2740,18 @@ static const struct acpi_device_id qca_bluetooth_acpi_match[] = {
MODULE_DEVICE_TABLE(acpi, qca_bluetooth_acpi_match);
#endif
+#ifdef CONFIG_DEV_COREDUMP
+static void hciqca_coredump(struct device *dev)
+{
+ struct serdev_device *serdev = to_serdev_device(dev);
+ struct qca_serdev *qcadev = serdev_device_get_drvdata(serdev);
+ struct hci_uart *hu = &qcadev->serdev_hu;
+ struct hci_dev *hdev = hu->hdev;
+
+ if (hdev->dump.coredump)
+ hdev->dump.coredump(hdev);
+}
+#endif
static struct serdev_device_driver qca_serdev_driver = {
.probe = qca_serdev_probe,
@@ -2172,6 +2762,9 @@ static struct serdev_device_driver qca_serdev_driver = {
.acpi_match_table = ACPI_PTR(qca_bluetooth_acpi_match),
.shutdown = qca_serdev_shutdown,
.pm = &qca_pm_ops,
+#ifdef CONFIG_DEV_COREDUMP
+ .coredump = hciqca_coredump,
+#endif
},
};
generated by cgit (git 2.34.1) at 2025-12-25 22:11:34 +0000