From: Paul Menzel <pmenzel@molgen.mpg.de>
To: Sean Wang <sean.wang@mediatek.com>,
Mark Chen <mark-yw.chen@mediatek.com>
Cc: Marcel Holtmann <marcel@holtmann.org>,
Johan Hedberg <johan.hedberg@gmail.com>,
Soul.Huang@mediatek.com, YN.Chen@mediatek.com,
Leon.Yen@mediatek.com, Eric-SY.Chang@mediatek.com,
Deren.Wu@mediatek.com, km.lin@mediatek.com,
robin.chiu@mediatek.com, Eddie.Chen@mediatek.com,
ch.yeh@mediatek.com, posh.sun@mediatek.com,
ted.huang@mediatek.com, Eric.Liang@mediatek.com,
Stella.Chang@mediatek.com, Tom.Chou@mediatek.com,
steve.lee@mediatek.com, jsiuda@google.com, frankgor@google.com,
jemele@google.com, abhishekpandit@google.com,
michaelfsun@google.com, mcchou@chromium.org, shawnku@google.com,
linux-bluetooth@vger.kernel.org,
linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/3] Bluetooth: btmtksdio: Enable SCO over I2S function
Date: Sat, 18 Dec 2021 11:30:03 +0100 [thread overview]
Message-ID: <638a2506-c410-d98c-b704-6f16f72e0bc6@molgen.mpg.de> (raw)
In-Reply-To: <e17b4b3aec942828ef017592df155e554a3d766b.1639787634.git.objelf@gmail.com>
Dear Sean, dear Mark,
Am 18.12.21 um 02:08 schrieb sean.wang@mediatek.com:
> From: Mark Chen <mark-yw.chen@mediatek.com>
>
> For MediaTek chipset, the driver has to issue the specific command to
> enable Bluetooth SCO support over the I2S/PCM interface.
Please document the datasheet name, revision and section, where this is
described.
Please add how SCO support can be tested. Are all Mediatek chipsets
supported?
> Co-developed-by: Sean Wang <sean.wang@mediatek.com>
> Signed-off-by: Sean Wang <sean.wang@mediatek.com>
> Signed-off-by: Mark Chen <mark-yw.chen@mediatek.com>
> ---
> drivers/bluetooth/btmtk.h | 20 +++++++++
> drivers/bluetooth/btmtksdio.c | 76 +++++++++++++++++++++++++++++++++++
> 2 files changed, 96 insertions(+)
>
> diff --git a/drivers/bluetooth/btmtk.h b/drivers/bluetooth/btmtk.h
> index 2be1d2680ad8..fc57ef09d132 100644
> --- a/drivers/bluetooth/btmtk.h
> +++ b/drivers/bluetooth/btmtk.h
> @@ -7,8 +7,12 @@
>
> #define HCI_WMT_MAX_EVENT_SIZE 64
>
> +#define BTMTK_WMT_REG_WRITE 0x1
> #define BTMTK_WMT_REG_READ 0x2
>
> +#define MT7921_PINMUX_0 0x70005050
> +#define MT7921_PINMUX_1 0x70005054
> +
> enum {
> BTMTK_WMT_PATCH_DWNLD = 0x1,
> BTMTK_WMT_TEST = 0x2,
> @@ -76,6 +80,22 @@ struct btmtk_wakeon {
> __le16 wakeup_delay;
> } __packed;
>
> +struct btmtk_sco {
> + u8 clock_config;
> + u8 transmit_format_config;
> + u8 channel_format_config;
> + u8 channel_select_config;
> +} __packed;
> +
> +struct reg_write_cmd {
> + u8 type;
> + u8 rsv;
> + u8 num;
> + __le32 addr;
> + __le32 data;
> + __le32 mask;
> +} __packed;
> +
> struct btmtk_hci_wmt_params {
> u8 op;
> u8 flag;
> diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
> index 771733ce362b..8e4d8c2da824 100644
> --- a/drivers/bluetooth/btmtksdio.c
> +++ b/drivers/bluetooth/btmtksdio.c
> @@ -830,6 +830,74 @@ static int btsdio_mtk_reg_read(struct hci_dev *hdev, u32 reg, u32 *val)
> return err;
> }
>
> +static int btsdio_mtk_reg_write(struct hci_dev *hdev, u32 reg, u32 val, u32 mask)
> +{
> + struct btmtk_hci_wmt_params wmt_params;
> + struct reg_write_cmd reg_write = {
> + .type = 1,
> + .num = 1,
> + .addr = cpu_to_le32(reg),
> + .data = cpu_to_le32(val),
> + .mask = cpu_to_le32(mask),
> + };
> + int err, status;
> +
> + wmt_params.op = BTMTK_WMT_REGISTER;
> + wmt_params.flag = BTMTK_WMT_REG_WRITE;
> + wmt_params.dlen = sizeof(reg_write);
> + wmt_params.data = ®_write;
> + wmt_params.status = &status;
> +
> + err = mtk_hci_wmt_sync(hdev, &wmt_params);
> + if (err < 0)
> + bt_dev_err(hdev, "Failed to write reg(%d)", err);
> +
> + return err;
> +}
> +
> +static int btsdio_mtk_sco_setting(struct hci_dev *hdev)
> +{
> + struct btmtk_sco sco_setting = {
> + .clock_config = 0x49,
> + .channel_format_config = 0x80,
> + };
> + struct sk_buff *skb;
> + u32 val;
> + int err;
> +
> + /* Enable SCO over i2s/pcm for Mediatek Chipset */
s/Chipset/chipset/
> + skb = __hci_cmd_sync(hdev, 0xfc72, sizeof(sco_setting),
> + &sco_setting, HCI_CMD_TIMEOUT);
> + if (IS_ERR(skb))
> + return PTR_ERR(skb);
> +
> + err = btsdio_mtk_reg_read(hdev, MT7921_PINMUX_0, &val);
> + if (err < 0) {
> + bt_dev_err(hdev, "Failed to read register (%d)", err);
> + return err;
> + }
> +
> + val |= 0x11000000;
> + err = btsdio_mtk_reg_write(hdev, MT7921_PINMUX_0, val, ~0);
> + if (err < 0) {
> + bt_dev_err(hdev, "Failed to write register (%d)", err);
> + return err;
> + }
> +
> + err = btsdio_mtk_reg_read(hdev, MT7921_PINMUX_1, &val);
> + if (err < 0) {
> + bt_dev_err(hdev, "Failed to read register (%d)", err);
> + return err;
> + }
> +
> + val |= 0x00000101;
> + err = btsdio_mtk_reg_write(hdev, MT7921_PINMUX_1, val, ~0);
> + if (err < 0)
> + bt_dev_err(hdev, "Failed to write register (%d)", err);
> +
> + return err;
> +}
> +
> static int btmtksdio_setup(struct hci_dev *hdev)
> {
> struct btmtksdio_dev *bdev = hci_get_drvdata(hdev);
> @@ -862,6 +930,14 @@ static int btmtksdio_setup(struct hci_dev *hdev)
> err = mt79xx_setup(hdev, fwname);
> if (err < 0)
> return err;
> +
> + /* Enable sco over i2s/pcm */
s/sco/SCO/
> + err = btsdio_mtk_sco_setting(hdev);
> + if (err < 0) {
> + bt_dev_err(hdev, "Failed to enable sco setting (%d)", err);
s/sco/SCO/
> + return err;
> + }
> +
> break;
> case 0x7663:
> case 0x7668:
Kind regards,
Paul
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
next prev parent reply other threads:[~2021-12-18 10:39 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-18 1:08 [PATCH RESEND 1/3] Bluetooth: btmtksdio: add the support of wake on bluetooth sean.wang
2021-12-18 1:08 ` [PATCH 2/3] Bluetooth: btmtksdio: Enable SCO over I2S function sean.wang
2021-12-18 10:30 ` Paul Menzel [this message]
2021-12-18 1:08 ` [PATCH 3/3] Bluetooth: btmtksdio: move struct reg_read_cmd to common file sean.wang
2021-12-18 10:26 ` [PATCH RESEND 1/3] Bluetooth: btmtksdio: add the support of wake on bluetooth Paul Menzel
[not found] <638a2506-c410-d98c-b704-6f16f72e0bc6@molgen.mpg.de--annotate>
2021-12-20 17:52 ` [PATCH 2/3] Bluetooth: btmtksdio: Enable SCO over I2S function sean.wang
2021-12-20 18:47 ` Paul Menzel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=638a2506-c410-d98c-b704-6f16f72e0bc6@molgen.mpg.de \
--to=pmenzel@molgen.mpg.de \
--cc=Deren.Wu@mediatek.com \
--cc=Eddie.Chen@mediatek.com \
--cc=Eric-SY.Chang@mediatek.com \
--cc=Eric.Liang@mediatek.com \
--cc=Leon.Yen@mediatek.com \
--cc=Soul.Huang@mediatek.com \
--cc=Stella.Chang@mediatek.com \
--cc=Tom.Chou@mediatek.com \
--cc=YN.Chen@mediatek.com \
--cc=abhishekpandit@google.com \
--cc=ch.yeh@mediatek.com \
--cc=frankgor@google.com \
--cc=jemele@google.com \
--cc=johan.hedberg@gmail.com \
--cc=jsiuda@google.com \
--cc=km.lin@mediatek.com \
--cc=linux-bluetooth@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mediatek@lists.infradead.org \
--cc=marcel@holtmann.org \
--cc=mark-yw.chen@mediatek.com \
--cc=mcchou@chromium.org \
--cc=michaelfsun@google.com \
--cc=posh.sun@mediatek.com \
--cc=robin.chiu@mediatek.com \
--cc=sean.wang@mediatek.com \
--cc=shawnku@google.com \
--cc=steve.lee@mediatek.com \
--cc=ted.huang@mediatek.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).