-----Original Message-----
From: Marcel Holtmann <marcel@xxxxxxxxxxxx>
Sent: Friday, January 7, 2022 1:54 AM
To: Sai Teja Aluvala (Temp) (QUIC) <quic_saluvala@xxxxxxxxxxx>
Cc: Johan Hedberg <johan.hedberg@xxxxxxxxx>; Matthias Kaehlcke <mka@xxxxxxxxxxxx>; Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>; linux-bluetooth <linux-bluetooth@xxxxxxxxxxxxxxx>; Hemant Gupta (QUIC) <quic_hemantg@xxxxxxxxxxx>; MSM <linux-arm-msm@xxxxxxxxxxxxxxx>; quic_bgodavar <quic_bgodavar@xxxxxxxxxxx>; rjliao@xxxxxxxxxxxxxx; hbandi@xxxxxxxxxxxxxx; abhishekpandit@xxxxxxxxxxxx; mcchou@xxxxxxxxxxxx; quic_pharish@xxxxxxxxxxx
Subject: Re: [PATCH v4] Bluetooth: btqca: sequential validation
Hi Sai,
> This change will have sequential validation support & patch config
> command is added
>
> Signed-off-by: Sai Teja Aluvala <quic_saluvala@xxxxxxxxxxx>
>
> v4:
> * addressed the change from u8 cmd to const u8 cmd
>
> v3:
> * removed rlen,rtype
> * Replaced kfree with kfree_skb
>
> v2:
> * Added static declaration
> * Addressed wrong indentation
> * Removed EDL_PATCH_CONFIG_CMD_LEN
>
> v1:
> *Initial patch
> ---
> drivers/bluetooth/btqca.c | 48
> +++++++++++++++++++++++++++++++++++++++++++++++
> drivers/bluetooth/btqca.h | 2 ++
> 2 files changed, 50 insertions(+)
>
> diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
> index be04d74..9091a88 100644
> --- a/drivers/bluetooth/btqca.c
> +++ b/drivers/bluetooth/btqca.c
> @@ -141,6 +141,51 @@ static int qca_read_fw_build_info(struct hci_dev *hdev)
> return err;
> }
>
> +static int qca_send_patch_config_cmd(struct hci_dev *hdev) {
> + struct sk_buff *skb;
> + int err = 0;
> + const u8 cmd[] = {EDL_PATCH_CONFIG_CMD, 0x01, 0, 0, 0};
> + struct edl_event_hdr *edl;
I said this many times before. = {[SPACE], a, b, c[SPACE]};
[Sai]: i will include spaces & update in next patch
And I prefer the const pieces first, and int err last.
[Sai]: I will update in next patch
> +
> + bt_dev_dbg(hdev, "QCA Patch config");
> +
> + skb = __hci_cmd_sync_ev(hdev, EDL_PATCH_CMD_OPCODE, sizeof(cmd),
> + cmd, HCI_EV_VENDOR, HCI_INIT_TIMEOUT);
> + if (IS_ERR(skb)) {
> + err = PTR_ERR(skb);
> + bt_dev_err(hdev, "Sending QCA Patch config failed (%d)", err);
> + return err;
> + }
> +
> + if (skb->len != 2) {
> + bt_dev_err(hdev, "QCA Patch config cmd size mismatch len %d", skb->len);
> + err = -EILSEQ;
> + goto out;
> + }
> +
> + edl = (struct edl_event_hdr *)(skb->data);
> + if (!edl) {
> + bt_dev_err(hdev, "QCA Patch config with no header");
> + err = -EILSEQ;
> + goto out;
> + }
> +
> + if (edl->cresp != EDL_PATCH_CONFIG_RES_EVT || edl->rtype != EDL_PATCH_CONFIG_CMD) {
> + bt_dev_err(hdev, "QCA Wrong packet received %d %d", edl->cresp,
> + edl->rtype);
> + err = -EIO;
> + goto out;
> + }
> +
> +out:
> + kfree_skb(skb);
> + if (err)
> + bt_dev_err(hdev, "QCA Patch config cmd failed (%d)", err);
It is rather pointless to print two error. So just scrap this one.
[Sai]: will delete in next patch.
> +
> + return err;
> +}
> +
> static int qca_send_reset(struct hci_dev *hdev) {
> struct sk_buff *skb;
> @@ -551,6 +596,9 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t baudrate,
> */
> rom_ver = ((soc_ver & 0x00000f00) >> 0x04) | (soc_ver & 0x0000000f);
>
> + if (soc_type == QCA_WCN6750)
> + qca_send_patch_config_cmd(hdev);
> +
> /* Download rampatch file */
> config.type = TLV_TYPE_PATCH;
> if (qca_is_wcn399x(soc_type)) {
> diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
> index 30afa77..61e9a50 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_PATCH_CONFIG_CMD (0x28)
> #define MAX_SIZE_PER_TLV_SEGMENT (243)
> #define QCA_PRE_SHUTDOWN_CMD (0xFC08)
> #define QCA_DISABLE_LOGGING (0xFC17)
> @@ -24,6 +25,7 @@
> #define EDL_CMD_EXE_STATUS_EVT (0x00)
> #define EDL_SET_BAUDRATE_RSP_EVT (0x92)
> #define EDL_NVM_ACCESS_CODE_EVT (0x0B)
> +#define EDL_PATCH_CONFIG_RES_EVT (0x00)
> #define QCA_DISABLE_LOGGING_SUB_OP (0x14)
>
> #define EDL_TAG_ID_HCI (17)
Regards
Marcel
