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Date: Mon, 17 Apr 2023 02:18:30 +0000
From: Max Chou <max.chou@...ltek.com>
To: Luiz Augusto von Dentz <luiz.dentz@...il.com>
CC: "marcel@...tmann.org" <marcel@...tmann.org>,
"johan.hedberg@...il.com" <johan.hedberg@...il.com>,
"linux-bluetooth@...r.kernel.org" <linux-bluetooth@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"alex_lu@...lsil.com.cn" <alex_lu@...lsil.com.cn>,
allen_chen <allen_chen@...lsil.com.cn>,
Hilda Wu <hildawu@...ltek.com>,
Karen Hsu <karenhsu@...ltek.com>,
KidmanLee <kidman@...ltek.com>,
"mmandlik@...gle.com" <mmandlik@...gle.com>,
"abhishekpandit@...omium.org" <abhishekpandit@...omium.org>,
"apusaka@...omium.org" <apusaka@...omium.org>,
"yinghsu@...omium.org" <yinghsu@...omium.org>,
"alainmichaud@...gle.com" <alainmichaud@...gle.com>
Subject: RE: [PATCH v4] Bluetooth: btrtl: Firmware format v2 support
Hi! Luiz,
Thanks for your response.
I will submit the v5 patch as your advice.
BRs,
Max
> -----Original Message-----
> From: Luiz Augusto von Dentz <luiz.dentz@...il.com>
> Sent: Saturday, April 15, 2023 5:18 AM
> To: Max Chou <max.chou@...ltek.com>
> Cc: marcel@...tmann.org; johan.hedberg@...il.com;
> linux-bluetooth@...r.kernel.org; linux-kernel@...r.kernel.org;
> alex_lu@...lsil.com.cn; allen_chen <allen_chen@...lsil.com.cn>; Hilda Wu
> <hildawu@...ltek.com>; Karen Hsu <karenhsu@...ltek.com>; KidmanLee
> <kidman@...ltek.com>; mmandlik@...gle.com;
> abhishekpandit@...omium.org; apusaka@...omium.org;
> yinghsu@...omium.org; alainmichaud@...gle.com
> Subject: Re: [PATCH v4] Bluetooth: btrtl: Firmware format v2 support
>
>
> External mail.
>
>
>
> Hi Max,
>
> On Fri, Apr 14, 2023 at 3:31 AM <max.chou@...ltek.com> wrote:
> >
> > From: Max Chou <max.chou@...ltek.com>
> >
> > Realtek changed the format of the firmware file as v2. The driver
> > should implement the patch to extract the firmware data from the
> > firmware file. The future chips must apply this patch for firmware loading.
> > This patch is compatible with the both previous format and v2 as well.
> >
> > Signed-off-by: Allen Chen <allen_chen@...lsil.com.cn>
> > Signed-off-by: Alex Lu <alex_lu@...lsil.com.cn>
> > Tested-by: Hilda Wu <hildawu@...ltek.com>
> > Signed-off-by: Max Chou <max.chou@...ltek.com>
> > ---
> > Changes in v4:
> > - Resolve the conflict due to the later commits Changes in v3:
> > - Fix sparse check
> > - Edit commit log
> > Changes in v2:
> > - Use iovec pull data function as rtl_iov_pull_data() to parse data.
> > ---
> > drivers/bluetooth/btrtl.c | 352
> > +++++++++++++++++++++++++++++++++-----
> > drivers/bluetooth/btrtl.h | 53 +++++-
> > 2 files changed, 364 insertions(+), 41 deletions(-)
> >
> > diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
> > index 0f256a8abef4..b746fe76809c 100644
> > --- a/drivers/bluetooth/btrtl.c
> > +++ b/drivers/bluetooth/btrtl.c
> > @@ -21,6 +21,7 @@
> > #define RTL_CHIP_8723CS_VF 4
> > #define RTL_CHIP_8723CS_XX 5
> > #define RTL_EPATCH_SIGNATURE "Realtech"
> > +#define RTL_EPATCH_SIGNATURE_V2 "RTBTCore"
> > #define RTL_ROM_LMP_8703B 0x8703
> > #define RTL_ROM_LMP_8723A 0x1200
> > #define RTL_ROM_LMP_8723B 0x8723
> > @@ -43,6 +44,14 @@
> > .hci_ver = (hciv), \
> > .hci_bus = (bus)
> >
> > +#define RTL_CHIP_SUBVER (&(struct rtl_vendor_cmd) {{0x10,
> 0x38, 0x04, 0x28, 0x80}})
> > +#define RTL_CHIP_REV (&(struct rtl_vendor_cmd) {{0x10,
> 0x3A, 0x04, 0x28, 0x80}})
> > +#define RTL_SEC_PROJ (&(struct rtl_vendor_cmd) {{0x10,
> 0xA4, 0x0D, 0x00, 0xb0}})
> > +
> > +#define RTL_PATCH_SNIPPETS 0x01
> > +#define RTL_PATCH_DUMMY_HEADER 0x02
> > +#define RTL_PATCH_SECURITY_HEADER 0x03
> > +
> > enum btrtl_chip_id {
> > CHIP_ID_8723A,
> > CHIP_ID_8723B,
> > @@ -81,6 +90,8 @@ struct btrtl_device_info {
> > int cfg_len;
> > bool drop_fw;
> > int project_id;
> > + u8 key_id;
> > + struct list_head patch_subsecs;
> > };
> >
> > static const struct id_table ic_id_table[] = { @@ -343,6 +354,229 @@
> > static int rtl_read_rom_version(struct hci_dev *hdev, u8 *version)
> > return 0;
> > }
> >
> > +static int btrtl_vendor_read_reg16(struct hci_dev *hdev,
> > + struct rtl_vendor_cmd *cmd, u8
> *rp)
> > +{
> > + struct sk_buff *skb;
> > + int err = 0;
> > +
> > + skb = __hci_cmd_sync(hdev, 0xfc61, sizeof(*cmd), cmd,
> > + HCI_INIT_TIMEOUT);
> > + if (IS_ERR(skb)) {
> > + err = PTR_ERR(skb);
> > + rtl_dev_err(hdev, "RTL: Read reg16 failed (%d)", err);
> > + return err;
> > + }
> > +
> > + if (skb->len != 3 || skb->data[0]) {
> > + bt_dev_err(hdev, "RTL: Read reg16 length mismatch");
> > + kfree_skb(skb);
> > + return -EIO;
> > + }
> > +
> > + if (rp)
> > + memcpy(rp, skb->data + 1, 2);
> > +
> > + kfree_skb(skb);
> > +
> > + return 0;
> > +}
> > +
> > +static void *rtl_iov_pull_data(struct rtl_iovec *iov, u32 len) {
> > + void *data = iov->data;
> > +
> > + if (iov->len < len)
> > + return NULL;
> > +
> > + iov->data += len;
> > + iov->len -= len;
> > +
> > + return data;
> > +}
> > +
> > +static void btrtl_insert_ordered_subsec(struct rtl_subsection *node,
> > + struct btrtl_device_info
> > +*btrtl_dev) {
> > + struct list_head *pos;
> > + struct list_head *next;
> > + struct rtl_subsection *subsec;
> > +
> > + list_for_each_safe(pos, next, &btrtl_dev->patch_subsecs) {
> > + subsec = list_entry(pos, struct rtl_subsection, list);
> > + if (subsec->prio >= node->prio)
> > + break;
> > + }
> > + __list_add(&node->list, pos->prev, pos); }
> > +
> > +static int btrtl_parse_section(struct hci_dev *hdev,
> > + struct btrtl_device_info *btrtl_dev,
> u32 opcode,
> > + u8 *data, u32 len) {
> > + struct rtl_section_hdr *hdr;
> > + struct rtl_subsection *subsec;
> > + struct rtl_common_subsec *common_subsec;
> > + struct rtl_sec_hdr *sec_hdr;
> > + int i;
> > + u8 *ptr;
> > + u16 num_subsecs;
> > + u32 subsec_len;
> > + int rc = 0;
> > + struct rtl_iovec iov = {
> > + .data = data,
> > + .len = len,
> > + };
> > +
> > + hdr = rtl_iov_pull_data(&iov, sizeof(*hdr));
> > + if (!hdr)
> > + return -EINVAL;
> > + num_subsecs = le16_to_cpu(hdr->num);
> > +
> > + for (i = 0; i < num_subsecs; i++) {
> > + common_subsec = rtl_iov_pull_data(&iov,
> sizeof(*common_subsec));
> > + if (!common_subsec)
> > + break;
> > + subsec_len = le32_to_cpu(common_subsec->len);
> > +
> > + rtl_dev_dbg(hdev, "subsec, eco 0x%02x, len %08x",
> > + common_subsec->eco, subsec_len);
> > +
> > + ptr = rtl_iov_pull_data(&iov, subsec_len);
> > + if (!ptr)
> > + break;
> > +
> > + if (common_subsec->eco != btrtl_dev->rom_version + 1)
> > + continue;
> > +
> > + switch (opcode) {
> > + case RTL_PATCH_SECURITY_HEADER:
> > + sec_hdr = (void *)common_subsec;
> > + if (sec_hdr->key_id != btrtl_dev->key_id)
> > + continue;
> > + break;
> > + }
> > +
> > + subsec = kzalloc(sizeof(*subsec), GFP_KERNEL);
> > + if (!subsec)
> > + return -ENOMEM;
> > + subsec->opcode = opcode;
> > + subsec->prio = common_subsec->prio;
> > + subsec->len = subsec_len;
> > + subsec->data = ptr;
> > + btrtl_insert_ordered_subsec(subsec, btrtl_dev);
> > + rc += subsec_len;
> > + }
> > +
> > + return rc;
> > +}
> > +
> > +static int rtlbt_parse_firmware_v2(struct hci_dev *hdev,
> > + struct btrtl_device_info
> *btrtl_dev,
> > + unsigned char **_buf) {
> > + struct rtl_epatch_header_v2 *hdr;
> > + int rc;
> > + u8 reg_val[2];
> > + u8 key_id;
> > + u32 num_sections;
> > + struct rtl_section *section;
> > + struct rtl_subsection *entry, *tmp;
> > + u32 section_len;
> > + u32 opcode;
> > + int len = 0;
> > + int i;
> > + u8 *ptr;
> > + struct rtl_iovec iov = {
> > + .data = btrtl_dev->fw_data,
> > + .len = btrtl_dev->fw_len - 7, /* Cut the tail */
> > + };
> > +
> > + rc = btrtl_vendor_read_reg16(hdev, RTL_SEC_PROJ, reg_val);
> > + if (rc < 0)
> > + return -EIO;
> > + key_id = reg_val[0];
> > +
> > + rtl_dev_dbg(hdev, "%s: key id %u", __func__, key_id);
> > +
> > + btrtl_dev->key_id = key_id;
> > +
> > + hdr = rtl_iov_pull_data(&iov, sizeof(*hdr));
> > + if (!hdr)
> > + return -EINVAL;
> > + num_sections = le32_to_cpu(hdr->num_sections);
> > +
> > + rtl_dev_dbg(hdev, "FW version %08x-%08x", *((u32
> *)hdr->fw_version),
> > + *((u32 *)(hdr->fw_version + 4)));
> > +
> > + for (i = 0; i < num_sections; i++) {
> > + section = rtl_iov_pull_data(&iov, sizeof(*section));
> > + if (!section)
> > + break;
> > + section_len = le32_to_cpu(section->len);
> > + opcode = le32_to_cpu(section->opcode);
> > +
> > + rtl_dev_dbg(hdev, "opcode 0x%04x", section->opcode);
> > +
> > + ptr = rtl_iov_pull_data(&iov, section_len);
> > + if (!ptr)
> > + break;
> > +
> > + switch (opcode) {
> > + case RTL_PATCH_SNIPPETS:
> > + rc = btrtl_parse_section(hdev, btrtl_dev,
> opcode,
> > + ptr,
> section_len);
> > + break;
> > + case RTL_PATCH_SECURITY_HEADER:
> > + /* If key_id from chip is zero, ignore all
> security
> > + * headers.
> > + */
> > + if (!key_id)
> > + break;
> > + rc = btrtl_parse_section(hdev, btrtl_dev,
> opcode,
> > + ptr,
> section_len);
> > + break;
> > + case RTL_PATCH_DUMMY_HEADER:
> > + rc = btrtl_parse_section(hdev, btrtl_dev,
> opcode,
> > + ptr,
> section_len);
> > + break;
> > + default:
> > + rc = 0;
> > + break;
> > + }
> > + if (rc < 0) {
> > + rtl_dev_err(hdev, "RTL: Parse section (%u) err
> %d",
> > + opcode, rc);
> > + return rc;
> > + }
> > + len += rc;
> > + }
> > +
> > + if (!len)
> > + return -ENODATA;
> > +
> > + /* Allocate mem and copy all found subsecs. */
> > + ptr = kvmalloc(len, GFP_KERNEL);
> > + if (!ptr)
> > + return -ENOMEM;
> > +
> > + len = 0;
> > + list_for_each_entry_safe(entry, tmp, &btrtl_dev->patch_subsecs,
> list) {
> > + rtl_dev_dbg(hdev, "RTL: opcode %08x, addr %p, len
> 0x%x",
> > + entry->opcode, entry->data, entry->len);
> > + memcpy(ptr + len, entry->data, entry->len);
> > + len += entry->len;
> > + }
> > +
> > + bt_dev_info(hdev, "RTL: Patch (len %d) found", len);
>
> This isn't very informative, usually we expect the firmware
> filename/version/revision/etc to be printed, just having the length is not going
> to be very useful if the user is trying to report a bug or something, so I
> recommend either removing this or use bt_dev_dbg and convert the
> bt_dev_dbg into bt_dev_info where you print the fw information.
>
> > +
> > + if (!len)
> > + return -EPERM;
> > +
> > + *_buf = ptr;
> > + return len;
> > +}
> > +
> > static int rtlbt_parse_firmware(struct hci_dev *hdev,
> > struct btrtl_device_info *btrtl_dev,
> > unsigned char **_buf) @@ -377,7
> > +611,18 @@ static int rtlbt_parse_firmware(struct hci_dev *hdev,
> > { RTL_ROM_LMP_8852A, 25 }, /* 8852C */
> > };
> >
> > - min_size = sizeof(struct rtl_epatch_header) + sizeof(extension_sig)
> + 3;
> > + if (btrtl_dev->fw_len <= 8)
> > + return -EINVAL;
> > +
> > + if (!memcmp(btrtl_dev->fw_data, RTL_EPATCH_SIGNATURE, 8))
> > + min_size = sizeof(struct rtl_epatch_header) +
> > + sizeof(extension_sig) + 3;
> > + else if (!memcmp(btrtl_dev->fw_data,
> RTL_EPATCH_SIGNATURE_V2, 8))
> > + min_size = sizeof(struct rtl_epatch_header_v2) +
> > + sizeof(extension_sig) + 3;
> > + else
> > + return -EINVAL;
> > +
> > if (btrtl_dev->fw_len < min_size)
> > return -EINVAL;
> >
> > @@ -442,12 +687,14 @@ static int rtlbt_parse_firmware(struct hci_dev
> *hdev,
> > return -EINVAL;
> > }
> >
> > - epatch_info = (struct rtl_epatch_header *)btrtl_dev->fw_data;
> > - if (memcmp(epatch_info->signature, RTL_EPATCH_SIGNATURE,
> 8) != 0) {
> > + if (memcmp(btrtl_dev->fw_data, RTL_EPATCH_SIGNATURE, 8) != 0)
> {
> > + if (!memcmp(btrtl_dev->fw_data,
> RTL_EPATCH_SIGNATURE_V2, 8))
> > + return rtlbt_parse_firmware_v2(hdev,
> > + btrtl_dev, _buf);
> > rtl_dev_err(hdev, "bad EPATCH signature");
> > return -EINVAL;
> > }
> >
> > + epatch_info = (struct rtl_epatch_header *)btrtl_dev->fw_data;
> > num_patches = le16_to_cpu(epatch_info->num_patches);
> > BT_DBG("fw_version=%x, num_patches=%d",
> > le32_to_cpu(epatch_info->fw_version), num_patches);
> @@
> > -511,6 +758,7 @@ static int rtl_download_firmware(struct hci_dev *hdev,
> > int frag_len = RTL_FRAG_LEN;
> > int ret = 0;
> > int i;
> > + int j = 0;
> > struct sk_buff *skb;
> > struct hci_rp_read_local_version *rp;
> >
> > @@ -521,17 +769,16 @@ static int rtl_download_firmware(struct hci_dev
> *hdev,
> > for (i = 0; i < frag_num; i++) {
> > struct sk_buff *skb;
> >
> > - BT_DBG("download fw (%d/%d)", i, frag_num);
> > -
> > - if (i > 0x7f)
> > - dl_cmd->index = (i & 0x7f) + 1;
> > - else
> > - dl_cmd->index = i;
> > + dl_cmd->index = j++;
> > + if (dl_cmd->index == 0x7f)
> > + j = 1;
> >
> > if (i == (frag_num - 1)) {
> > dl_cmd->index |= 0x80; /* data end */
> > frag_len = fw_len % RTL_FRAG_LEN;
> > }
> > + rtl_dev_dbg(hdev, "download fw (%d/%d). index = %d", i,
> > + frag_num, dl_cmd->index);
> > memcpy(dl_cmd->data, data, frag_len);
> >
> > /* Send download command */ @@ -691,8 +938,16 @@
> > static int rtl_read_chip_type(struct hci_dev *hdev, u8 *type)
> >
> > void btrtl_free(struct btrtl_device_info *btrtl_dev) {
> > + struct rtl_subsection *entry, *tmp;
> > +
> > kvfree(btrtl_dev->fw_data);
> > kvfree(btrtl_dev->cfg_data);
> > +
> > + list_for_each_entry_safe(entry, tmp, &btrtl_dev->patch_subsecs,
> list) {
> > + list_del(&entry->list);
> > + kfree(entry);
> > + }
> > +
> > kfree(btrtl_dev);
> > }
> > EXPORT_SYMBOL_GPL(btrtl_free);
> > @@ -705,10 +960,11 @@ struct btrtl_device_info *btrtl_initialize(struct
> hci_dev *hdev,
> > struct hci_rp_read_local_version *resp;
> > char cfg_name[40];
> > u16 hci_rev, lmp_subver;
> > - u8 hci_ver, chip_type = 0;
> > + u8 hci_ver, lmp_ver, chip_type = 0;
> > int ret;
> > u16 opcode;
> > u8 cmd[2];
> > + u8 reg_val[2];
> >
> > btrtl_dev = kzalloc(sizeof(*btrtl_dev), GFP_KERNEL);
> > if (!btrtl_dev) {
> > @@ -716,6 +972,31 @@ struct btrtl_device_info *btrtl_initialize(struct
> hci_dev *hdev,
> > goto err_alloc;
> > }
> >
> > + INIT_LIST_HEAD(&btrtl_dev->patch_subsecs);
> > +
> > +check_version:
> > + ret = btrtl_vendor_read_reg16(hdev, RTL_CHIP_SUBVER, reg_val);
> > + if (ret < 0)
> > + goto err_free;
> > + lmp_subver = get_unaligned_le16(reg_val);
> > +
> > + if (lmp_subver == RTL_ROM_LMP_8822B) {
> > + ret = btrtl_vendor_read_reg16(hdev, RTL_CHIP_REV,
> reg_val);
> > + if (ret < 0)
> > + goto err_free;
> > + hci_rev = get_unaligned_le16(reg_val);
> > +
> > + /* 8822E */
> > + if (hci_rev == 0x000e) {
> > + hci_ver = 0x0c;
> > + lmp_ver = 0x0c;
> > + btrtl_dev->ic_info = btrtl_match_ic(lmp_subver,
> hci_rev,
> > +
> hci_ver, hdev->bus,
> > +
> chip_type);
> > + goto next;
> > + }
> > + }
> > +
> > skb = btrtl_read_local_version(hdev);
> > if (IS_ERR(skb)) {
> > ret = PTR_ERR(skb);
> > @@ -723,14 +1004,14 @@ struct btrtl_device_info *btrtl_initialize(struct
> hci_dev *hdev,
> > }
> >
> > resp = (struct hci_rp_read_local_version *)skb->data;
> > - rtl_dev_info(hdev, "examining hci_ver=%02x hci_rev=%04x
> lmp_ver=%02x lmp_subver=%04x",
> > - resp->hci_ver, resp->hci_rev,
> > - resp->lmp_ver, resp->lmp_subver);
> >
> > - hci_ver = resp->hci_ver;
> > - hci_rev = le16_to_cpu(resp->hci_rev);
> > + hci_ver = resp->hci_ver;
> > + hci_rev = le16_to_cpu(resp->hci_rev);
> > + lmp_ver = resp->lmp_ver;
> > lmp_subver = le16_to_cpu(resp->lmp_subver);
> >
> > + kfree_skb(skb);
> > +
> > if (rtl_has_chip_type(lmp_subver)) {
> > ret = rtl_read_chip_type(hdev, &chip_type);
> > if (ret)
> > @@ -740,8 +1021,15 @@ struct btrtl_device_info *btrtl_initialize(struct
> hci_dev *hdev,
> > btrtl_dev->ic_info = btrtl_match_ic(lmp_subver, hci_rev, hci_ver,
> > hdev->bus,
> chip_type);
> >
> > - if (!btrtl_dev->ic_info)
> > +next:
> > + rtl_dev_info(hdev, "examining hci_ver=%02x hci_rev=%04x
> lmp_ver=%02x lmp_subver=%04x",
> > + hci_ver, hci_rev,
> > + lmp_ver, lmp_subver);
> > +
> > + if (!btrtl_dev->ic_info && !btrtl_dev->drop_fw)
> > btrtl_dev->drop_fw = true;
> > + else
> > + btrtl_dev->drop_fw = false;
> >
> > if (btrtl_dev->drop_fw) {
> > opcode = hci_opcode_pack(0x3f, 0x66); @@ -750,41
> > +1038,25 @@ struct btrtl_device_info *btrtl_initialize(struct hci_dev
> > *hdev,
> >
> > skb = bt_skb_alloc(sizeof(cmd), GFP_KERNEL);
> > if (!skb)
> > - goto out_free;
> > + goto err_free;
> >
> > skb_put_data(skb, cmd, sizeof(cmd));
> > hci_skb_pkt_type(skb) = HCI_COMMAND_PKT;
> >
> > - hdev->send(hdev, skb);
> > + ret = hdev->send(hdev, skb);
> > + if (ret < 0) {
> > + bt_dev_err(hdev, "sending frame failed (%d)",
> ret);
> > + kfree_skb(skb);
> > + goto err_free;
> > + }
> >
> > /* Ensure the above vendor command is sent to
> controller and
> > * process has done.
> > */
> > msleep(200);
> >
> > - /* Read the local version again. Expect to have the
> vanilla
> > - * version as cold boot.
> > - */
> > - skb = btrtl_read_local_version(hdev);
> > - if (IS_ERR(skb)) {
> > - ret = PTR_ERR(skb);
> > - goto err_free;
> > - }
> > -
> > - resp = (struct hci_rp_read_local_version *)skb->data;
> > - rtl_dev_info(hdev, "examining hci_ver=%02x
> hci_rev=%04x lmp_ver=%02x lmp_subver=%04x",
> > - resp->hci_ver, resp->hci_rev,
> > - resp->lmp_ver, resp->lmp_subver);
> > -
> > - hci_ver = resp->hci_ver;
> > - hci_rev = le16_to_cpu(resp->hci_rev);
> > - lmp_subver = le16_to_cpu(resp->lmp_subver);
> > -
> > - btrtl_dev->ic_info = btrtl_match_ic(lmp_subver, hci_rev,
> hci_ver,
> > - hdev->bus,
> chip_type);
> > + goto check_version;
> > }
> > -out_free:
> > - kfree_skb(skb);
> >
> > if (!btrtl_dev->ic_info) {
> > rtl_dev_info(hdev, "unknown IC info, lmp subver %04x,
> > hci rev %04x, hci ver %04x", diff --git a/drivers/bluetooth/btrtl.h
> > b/drivers/bluetooth/btrtl.h index 349d72ee571b..adb4c2c9abc5 100644
> > --- a/drivers/bluetooth/btrtl.h
> > +++ b/drivers/bluetooth/btrtl.h
> > @@ -49,7 +49,58 @@ struct rtl_vendor_config_entry { struct
> > rtl_vendor_config {
> > __le32 signature;
> > __le16 total_len;
> > - struct rtl_vendor_config_entry entry[];
> > + __u8 entry[];
> > +} __packed;
> > +
> > +struct rtl_epatch_header_v2 {
> > + __u8 signature[8];
> > + __u8 fw_version[8];
> > + __le32 num_sections;
> > +} __packed;
> > +
> > +struct rtl_section {
> > + __le32 opcode;
> > + __le32 len;
> > + u8 data[];
> > +} __packed;
> > +
> > +struct rtl_section_hdr {
> > + __le16 num;
> > + __le16 reserved;
> > +} __packed;
> > +
> > +struct rtl_common_subsec {
> > + __u8 eco;
> > + __u8 prio;
> > + __u8 cb[2];
> > + __le32 len;
> > + __u8 data[];
> > +};
> > +
> > +struct rtl_sec_hdr {
> > + __u8 eco;
> > + __u8 prio;
> > + __u8 key_id;
> > + __u8 reserved;
> > + __le32 len;
> > + __u8 data[];
> > +} __packed;
> > +
> > +struct rtl_subsection {
> > + struct list_head list;
> > + u32 opcode;
> > + u32 len;
> > + u8 prio;
> > + u8 *data;
> > +};
> > +
> > +struct rtl_iovec {
> > + u8 *data;
> > + u32 len;
> > +};
> > +
> > +struct rtl_vendor_cmd {
> > + __u8 param[5];
> > } __packed;
> >
> > enum {
> > --
> > 2.34.1
> >
>
>
> --
> Luiz Augusto von Dentz
>
> ------Please consider the environment before printing this e-mail.
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