Re: [PATCH v8] Bluetooth: hci_qca: Add support for Qualcomm Bluetooth SoC QCA2066
From: Paul Menzel
Date: Thu Jun 01 2023 - 06:02:11 EST
Dear Tim,
Thank you for the interation.
Am 01.06.23 um 11:13 schrieb Tim Jiang:
This patch adds support for QCA2066 firmware patch and nvm downloading.
as the RF performance of qca2066 soc chip from different foundries will
be difference, so we use different nvm to configure them by according
s/difference/different/
to board id.
chat.lmsys.org with the model vicuna-13b suggested the text below:
Please correct the spelling/grammar of […]:
Sure, here's the corrected version of the sentence:
This patch adds support for QCA2066 firmware patch and NVM
downloading, as the RF performance of QCA2066 SOC chips from
different foundries may vary. Therefore, we use different NVM to
configure them based on board ID.
I hope that helps!
;-)
Signed-off-by: Tim Jiang <quic_tjiang@xxxxxxxxxxx>
---
In the future, it’d be great if you added a change-log between the patch
iterations so reviewers know what to look at.
drivers/bluetooth/btqca.c | 76 ++++++++++++++++++++++++++++++++++++-
drivers/bluetooth/btqca.h | 4 ++
drivers/bluetooth/hci_qca.c | 40 +++++++++++++++++--
3 files changed, 114 insertions(+), 6 deletions(-)
diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
index e7e58a956d15..1f1b141b80f9 100644
--- a/drivers/bluetooth/btqca.c
+++ b/drivers/bluetooth/btqca.c
@@ -205,6 +205,46 @@ static int qca_send_reset(struct hci_dev *hdev)
return 0;
}
+static int qca_read_fw_board_id(struct hci_dev *hdev, u16 *bid)
+{
+ u8 cmd;
+ struct sk_buff *skb;
+ struct edl_event_hdr *edl;
+ int err = 0;
+ int bid_len;
As the length cannot be negative, why not use `unsigned int`? But also
see below.
+
+ cmd = EDL_GET_BID_REQ_CMD;
+ skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, EDL_PATCH_CMD_LEN,
+ &cmd, 0, HCI_INIT_TIMEOUT);
+ if (IS_ERR(skb)) {
+ err = PTR_ERR(skb);
+ bt_dev_err(hdev, "Reading QCA board ID failed (%d)", err);
+ return err;
+ }
+
+ edl = skb_pull_data(skb, sizeof(*edl));
+ if (!edl) {
+ bt_dev_err(hdev, "QCA read board ID with no header");
+ err = -EILSEQ;
+ goto out;
+ }
+
+ if (edl->cresp != EDL_CMD_REQ_RES_EVT ||
+ edl->rtype != EDL_GET_BID_REQ_CMD) {
+ bt_dev_err(hdev, "QCA Wrong packet: %d %d", edl->cresp, edl->rtype);
+ err = -EIO;
+ goto out;
+ }
+
+ bid_len = edl->data[0];
+ *bid = (edl->data[1] << 8) + edl->data[2];
+ bt_dev_dbg(hdev, "%s: bid len = %x, bid = %x", __func__, bid_len, *bid);
Currently, you use `bid_len` only to log it, and not for anything else.
Should some sanity checks be added? Otherwise, I think, the variable can
be removed?
+
+out:
+ kfree_skb(skb);
+ return err;
+}
+
int qca_send_pre_shutdown_cmd(struct hci_dev *hdev)
{
struct sk_buff *skb;
@@ -574,6 +614,29 @@ int qca_set_bdaddr_rome(struct hci_dev *hdev, const bdaddr_t *bdaddr)
}
EXPORT_SYMBOL_GPL(qca_set_bdaddr_rome);
+static void qca_generate_nvm_name(struct hci_dev *hdev, char *fwname,
+ size_t max_size, struct qca_btsoc_version ver, u16 bid)
+{
+ u8 rom_ver;
+ u32 soc_ver;
+ const char *variant;
+
+ soc_ver = get_soc_ver(ver.soc_id, ver.rom_ver);
+ rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f);
+
+ if ((le32_to_cpu(ver.soc_id) & 0x0000ff00) == QCA_HSP_GF_SOC_ID) /* hsp gf chip */
+ variant = "g";
+ else
+ variant = "";
+
+ if (bid == 0x0)
+ snprintf(fwname, max_size, "qca/hpnv%02x%s.bin", rom_ver, variant);
+ else
+ snprintf(fwname, max_size, "qca/hpnv%02x%s.%x", rom_ver, variant, bid);
+
+ bt_dev_dbg(hdev, "%s: nvm name is %s", __func__, fwname);
+}
+
int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
enum qca_btsoc_type soc_type, struct qca_btsoc_version ver,
const char *firmware_name)
@@ -582,6 +645,7 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
int err;
u8 rom_ver = 0;
u32 soc_ver;
+ u16 boardid = 0;
Sorry, I didn’t get to reply to your v3 answer:
Why can’t you simply use `unsigned int` [1]?
[Tim] you can refer to function qca_uart_setup , which also use u32
I meant `boardid`, which is newly introduced.
Kind regards,
Paul
bt_dev_dbg(hdev, "QCA setup on UART");
@@ -604,6 +668,9 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
if (qca_is_wcn399x(soc_type)) {
snprintf(config.fwname, sizeof(config.fwname),
"qca/crbtfw%02x.tlv", rom_ver);
+ } else if (soc_type == QCA_QCA2066) {
+ snprintf(config.fwname, sizeof(config.fwname),
+ "qca/hpbtfw%02x.tlv", rom_ver);
} else if (soc_type == QCA_QCA6390) {
snprintf(config.fwname, sizeof(config.fwname),
"qca/htbtfw%02x.tlv", rom_ver);
@@ -631,6 +698,9 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
/* Give the controller some time to get ready to receive the NVM */
msleep(10);
+ if (soc_type == QCA_QCA2066)
+ qca_read_fw_board_id(hdev, &boardid);
+
/* Download NVM configuration */
config.type = TLV_TYPE_NVM;
if (firmware_name)
@@ -644,8 +714,10 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
snprintf(config.fwname, sizeof(config.fwname),
"qca/crnv%02x.bin", rom_ver);
}
- }
- else if (soc_type == QCA_QCA6390)
+ } else if (soc_type == QCA_QCA2066) {
+ qca_generate_nvm_name(hdev, config.fwname, sizeof(config.fwname),
+ ver, boardid);
+ } else if (soc_type == QCA_QCA6390)
snprintf(config.fwname, sizeof(config.fwname),
"qca/htnv%02x.bin", rom_ver);
else if (soc_type == QCA_WCN6750)
diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
index b884095bcd9d..234a97a49bb9 100644
--- a/drivers/bluetooth/btqca.h
+++ b/drivers/bluetooth/btqca.h
@@ -13,6 +13,7 @@
#define EDL_PATCH_TLV_REQ_CMD (0x1E)
#define EDL_GET_BUILD_INFO_CMD (0x20)
#define EDL_NVM_ACCESS_SET_REQ_CMD (0x01)
+#define EDL_GET_BID_REQ_CMD (0x23)
#define EDL_PATCH_CONFIG_CMD (0x28)
#define MAX_SIZE_PER_TLV_SEGMENT (243)
#define QCA_PRE_SHUTDOWN_CMD (0xFC08)
@@ -48,6 +49,8 @@
#define QCA_FW_BUILD_VER_LEN 255
+#define QCA_HSP_GF_SOC_ID 0x1200
+
enum qca_baudrate {
QCA_BAUDRATE_115200 = 0,
@@ -148,6 +151,7 @@ enum qca_btsoc_type {
QCA_QCA6390,
QCA_WCN6750,
QCA_WCN6855,
+ QCA_QCA2066,
};
#if IS_ENABLED(CONFIG_BT_QCA)
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 1b064504b388..3c65b6b80461 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -1712,6 +1712,7 @@ 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)
@@ -1726,10 +1727,35 @@ 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_AR3002:
+ soc_name = "ar300x";
+ break;
+ case QCA_ROME:
+ soc_name = "ROME";
+ break;
+ case QCA_WCN3990:
+ case QCA_WCN3991:
+ case QCA_WCN3998:
+ soc_name = "wcn399x";
+ break;
+ case QCA_QCA2066:
+ soc_name = "QCA2066";
+ break;
+ case QCA_QCA6390:
+ soc_name = "QCA6390";
+ break;
+ case QCA_WCN6750:
+ soc_name = "wcn6750";
+ break;
+ case QCA_WCN6855:
+ soc_name = "wcn6855";
+ break;
+ default:
+ soc_name = "unknown soc";
+ break;
+ }
+ bt_dev_info(hdev, "setting up %s", soc_name);
qca->memdump_state = QCA_MEMDUMP_IDLE;
@@ -1874,6 +1900,11 @@ static const struct qca_device_data qca_soc_data_qca6390 __maybe_unused = {
.num_vregs = 0,
};
+static const struct qca_device_data qca_soc_data_qca2066 __maybe_unused = {
+ .soc_type = QCA_QCA2066,
+ .num_vregs = 0,
+};
+
static const struct qca_device_data qca_soc_data_wcn6750 __maybe_unused = {
.soc_type = QCA_WCN6750,
.vregs = (struct qca_vreg []) {
@@ -2371,6 +2402,7 @@ 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 },