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Message-ID: <1aff039c60da7e1d188bd5ef8750eefd@codeaurora.org>
Date: Mon, 23 Mar 2020 09:51:26 +0800
From: Rocky Liao <rjliao@...eaurora.org>
To: Matthias Kaehlcke <mka@...omium.org>
Cc: marcel@...tmann.org, johan.hedberg@...il.com,
linux-kernel@...r.kernel.org, linux-bluetooth@...r.kernel.org,
linux-arm-msm@...r.kernel.org, bgodavar@...eaurora.org,
c-hbandi@...eaurora.org, hemantg@...eaurora.org,
linux-bluetooth-owner@...r.kernel.org
Subject: Re: [PATCH v1 1/2] Bluetooth: hci_qca: Add support for Qualcomm
Bluetooth SoC QCA6390
在 2020-03-17 01:46，Matthias Kaehlcke 写道：
> On Sat, Mar 14, 2020 at 05:43:27PM +0800, Rocky Liao wrote:
>> This patch adds support for QCA6390, including the devicetree and acpi
>> compatible hwid matching, and patch/nvm downloading.
>>
>> Signed-off-by: Rocky Liao <rjliao@...eaurora.org>
>> ---
>> drivers/bluetooth/btqca.c | 44 +++++++++++++++++++++++++++++++----
>> drivers/bluetooth/btqca.h | 8 +++++++
>> drivers/bluetooth/hci_qca.c | 46
>> +++++++++++++++++++++++++++++++------
>> 3 files changed, 86 insertions(+), 12 deletions(-)
>>
>> diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c
>> index a16845c0751d..ca126e499c58 100644
>> --- a/drivers/bluetooth/btqca.c
>> +++ b/drivers/bluetooth/btqca.c
>> @@ -14,6 +14,9 @@
>>
>> #define VERSION "0.1"
>>
>> +#define QCA_IS_3991_6390(soc_type) \
>> + (soc_type == QCA_WCN3991 || soc_type == QCA_QCA6390)
>
> This macro style is 3991 or 6390 is pretty ugly, IMO it's worse than
> the
> problem it intends to solve.
>
> I would either just spell out what the macro does, or if that becomes
> to
> cumbersome (especially when more types are added) have a macro that
> checks
> a bitmask like:
>
> qca_soc_type_matches(soc_type, QCA_WCN3991 | QCA6390)
>
> For this the SoC types read from FW would have to be mapped to a bit
> for
> each SoC type, which could be done during initialization.
>
> Another alternative could be to have a set of flags that indicate if a
> SoC
> has certain characteristics (e.g. enhanced logging needs to be
> enabled),
> these flags could be set during initialization.
>
I prefer to adopt Bala's suggestion to use soc_type >= QCA_WCN3991
>> +
>> int qca_read_soc_version(struct hci_dev *hdev, u32 *soc_version,
>> enum qca_btsoc_type soc_type)
>> {
>> @@ -32,7 +35,7 @@ int qca_read_soc_version(struct hci_dev *hdev, u32
>> *soc_version,
>> * VSE event. WCN3991 sends version command response as a payload to
>> * command complete event.
>> */
>> - if (soc_type == QCA_WCN3991) {
>> + if (QCA_IS_3991_6390(soc_type)) {
>> event_type = 0;
>> rlen += 1;
>> rtype = EDL_PATCH_VER_REQ_CMD;
>> @@ -69,7 +72,7 @@ int qca_read_soc_version(struct hci_dev *hdev, u32
>> *soc_version,
>> goto out;
>> }
>>
>> - if (soc_type == QCA_WCN3991)
>> + if (QCA_IS_3991_6390(soc_type))
>> memmove(&edl->data, &edl->data[1], sizeof(*ver));
>>
>> ver = (struct qca_btsoc_version *)(edl->data);
>> @@ -138,6 +141,29 @@ int qca_send_pre_shutdown_cmd(struct hci_dev
>> *hdev)
>> }
>> EXPORT_SYMBOL_GPL(qca_send_pre_shutdown_cmd);
>>
>> +int qca_send_enhancelog_enable_cmd(struct hci_dev *hdev)
>> +{
>> + struct sk_buff *skb;
>> + int err;
>> + const u8 param[2] = {0x14, 0x01};
>> +
>> + bt_dev_dbg(hdev, "QCA enhanced log enable cmd");
>> +
>> + skb = __hci_cmd_sync_ev(hdev, QCA_ENHANCED_LOG_ENABLE_CMD, 2,
>> + param, HCI_EV_CMD_COMPLETE, HCI_INIT_TIMEOUT);
>> +
>> + if (IS_ERR(skb)) {
>> + err = PTR_ERR(skb);
>> + bt_dev_err(hdev, "Enhanced log enable cmd failed (%d)", err);
>> + return err;
>> + }
>> +
>> + kfree_skb(skb);
>> +
>> + return 0;
>> +}
>> +EXPORT_SYMBOL_GPL(qca_send_enhancelog_enable_cmd);
>> +
>> static void qca_tlv_check_data(struct qca_fw_config *config,
>> const struct firmware *fw, enum qca_btsoc_type soc_type)
>> {
>> @@ -217,7 +243,7 @@ static void qca_tlv_check_data(struct
>> qca_fw_config *config,
>> tlv_nvm->data[0] |= 0x80;
>>
>> /* UART Baud Rate */
>> - if (soc_type == QCA_WCN3991)
>> + if (QCA_IS_3991_6390(soc_type))
>> tlv_nvm->data[1] = nvm_baud_rate;
>> else
>> tlv_nvm->data[2] = nvm_baud_rate;
>> @@ -268,7 +294,7 @@ static int qca_tlv_send_segment(struct hci_dev
>> *hdev, int seg_size,
>> * VSE event. WCN3991 sends version command response as a payload to
>> * command complete event.
>> */
>> - if (soc_type == QCA_WCN3991) {
>> + if (QCA_IS_3991_6390(soc_type)) {
>> event_type = 0;
>> rlen = sizeof(*edl);
>> rtype = EDL_PATCH_TLV_REQ_CMD;
>> @@ -301,7 +327,7 @@ static int qca_tlv_send_segment(struct hci_dev
>> *hdev, int seg_size,
>> err = -EIO;
>> }
>>
>> - if (soc_type == QCA_WCN3991)
>> + if (QCA_IS_3991_6390(soc_type))
>> goto out;
>>
>> tlv_resp = (struct tlv_seg_resp *)(edl->data);
>> @@ -442,6 +468,11 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t
>> baudrate,
>> (soc_ver & 0x0000000f);
>> snprintf(config.fwname, sizeof(config.fwname),
>> "qca/crbtfw%02x.tlv", rom_ver);
>> + } else if (soc_type == QCA_QCA6390) {
>> + rom_ver = ((soc_ver & 0x00000f00) >> 0x04) |
>> + (soc_ver & 0x0000000f);
>> + snprintf(config.fwname, sizeof(config.fwname),
>> + "qca/htbtfw%02x.tlv", rom_ver);
>> } else {
>> snprintf(config.fwname, sizeof(config.fwname),
>> "qca/rampatch_%08x.bin", soc_ver);
>> @@ -464,6 +495,9 @@ int qca_uart_setup(struct hci_dev *hdev, uint8_t
>> baudrate,
>> else if (qca_is_wcn399x(soc_type))
>> snprintf(config.fwname, sizeof(config.fwname),
>> "qca/crnv%02x.bin", rom_ver);
>> + else if (soc_type == QCA_QCA6390)
>> + snprintf(config.fwname, sizeof(config.fwname),
>> + "qca/htnv%02x.bin", rom_ver);
>> else
>> snprintf(config.fwname, sizeof(config.fwname),
>> "qca/nvm_%08x.bin", soc_ver);
>> diff --git a/drivers/bluetooth/btqca.h b/drivers/bluetooth/btqca.h
>> index e16a4d650597..bc703817c3d7 100644
>> --- a/drivers/bluetooth/btqca.h
>> +++ b/drivers/bluetooth/btqca.h
>> @@ -14,6 +14,7 @@
>> #define EDL_NVM_ACCESS_SET_REQ_CMD (0x01)
>> #define MAX_SIZE_PER_TLV_SEGMENT (243)
>> #define QCA_PRE_SHUTDOWN_CMD (0xFC08)
>> +#define QCA_ENHANCED_LOG_ENABLE_CMD (0xFC17)
>>
>> #define EDL_CMD_REQ_RES_EVT (0x00)
>> #define EDL_PATCH_VER_RES_EVT (0x19)
>> @@ -127,6 +128,7 @@ enum qca_btsoc_type {
>> QCA_WCN3990,
>> QCA_WCN3991,
>> QCA_WCN3998,
>> + QCA_QCA6390,
>
> QCA_QCAxxxx seems a bit redundant, why not call it QCA_6390 or QCA6390?
> I also wouldn't be opposed to scrap the QCA_ prefixes from the WCN399x
> types, this is the QCA Bluetooth driver, so it's pretty evident that
> these are Qualcomm chips.
I would like to do this in a separate patch.
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