forked from Minki/linux
f5c3f98946
Rely on btmtk module to reduce duplicated code Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
292 lines
6.6 KiB
C
292 lines
6.6 KiB
C
// SPDX-License-Identifier: ISC
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/* Copyright (C) 2021 MediaTek Inc.
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*
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*/
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#include <linux/module.h>
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#include <linux/firmware.h>
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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_core.h>
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#include "btmtk.h"
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#define VERSION "0.1"
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/* It is for mt79xx download rom patch*/
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#define MTK_FW_ROM_PATCH_HEADER_SIZE 32
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#define MTK_FW_ROM_PATCH_GD_SIZE 64
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#define MTK_FW_ROM_PATCH_SEC_MAP_SIZE 64
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#define MTK_SEC_MAP_COMMON_SIZE 12
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#define MTK_SEC_MAP_NEED_SEND_SIZE 52
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struct btmtk_patch_header {
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u8 datetime[16];
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u8 platform[4];
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__le16 hwver;
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__le16 swver;
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__le32 magicnum;
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} __packed;
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struct btmtk_global_desc {
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__le32 patch_ver;
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__le32 sub_sys;
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__le32 feature_opt;
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__le32 section_num;
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} __packed;
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struct btmtk_section_map {
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__le32 sectype;
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__le32 secoffset;
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__le32 secsize;
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union {
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__le32 u4SecSpec[13];
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struct {
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__le32 dlAddr;
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__le32 dlsize;
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__le32 seckeyidx;
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__le32 alignlen;
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__le32 sectype;
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__le32 dlmodecrctype;
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__le32 crc;
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__le32 reserved[6];
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} bin_info_spec;
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};
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} __packed;
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int btmtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname,
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wmt_cmd_sync_func_t wmt_cmd_sync)
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{
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struct btmtk_hci_wmt_params wmt_params;
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struct btmtk_global_desc *globaldesc = NULL;
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struct btmtk_section_map *sectionmap;
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const struct firmware *fw;
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const u8 *fw_ptr;
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const u8 *fw_bin_ptr;
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int err, dlen, i, status;
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u8 flag, first_block, retry;
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u32 section_num, dl_size, section_offset;
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u8 cmd[64];
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err = request_firmware(&fw, fwname, &hdev->dev);
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if (err < 0) {
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bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
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return err;
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}
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fw_ptr = fw->data;
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fw_bin_ptr = fw_ptr;
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globaldesc = (struct btmtk_global_desc *)(fw_ptr + MTK_FW_ROM_PATCH_HEADER_SIZE);
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section_num = le32_to_cpu(globaldesc->section_num);
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for (i = 0; i < section_num; i++) {
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first_block = 1;
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fw_ptr = fw_bin_ptr;
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sectionmap = (struct btmtk_section_map *)(fw_ptr + MTK_FW_ROM_PATCH_HEADER_SIZE +
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MTK_FW_ROM_PATCH_GD_SIZE + MTK_FW_ROM_PATCH_SEC_MAP_SIZE * i);
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section_offset = le32_to_cpu(sectionmap->secoffset);
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dl_size = le32_to_cpu(sectionmap->bin_info_spec.dlsize);
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if (dl_size > 0) {
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retry = 20;
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while (retry > 0) {
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cmd[0] = 0; /* 0 means legacy dl mode. */
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memcpy(cmd + 1,
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fw_ptr + MTK_FW_ROM_PATCH_HEADER_SIZE +
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MTK_FW_ROM_PATCH_GD_SIZE +
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MTK_FW_ROM_PATCH_SEC_MAP_SIZE * i +
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MTK_SEC_MAP_COMMON_SIZE,
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MTK_SEC_MAP_NEED_SEND_SIZE + 1);
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wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
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wmt_params.status = &status;
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wmt_params.flag = 0;
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wmt_params.dlen = MTK_SEC_MAP_NEED_SEND_SIZE + 1;
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wmt_params.data = &cmd;
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err = wmt_cmd_sync(hdev, &wmt_params);
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if (err < 0) {
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bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
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err);
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goto err_release_fw;
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}
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if (status == BTMTK_WMT_PATCH_UNDONE) {
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break;
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} else if (status == BTMTK_WMT_PATCH_PROGRESS) {
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msleep(100);
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retry--;
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} else if (status == BTMTK_WMT_PATCH_DONE) {
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goto next_section;
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} else {
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bt_dev_err(hdev, "Failed wmt patch dwnld status (%d)",
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status);
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err = -EIO;
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goto err_release_fw;
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}
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}
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fw_ptr += section_offset;
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wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
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wmt_params.status = NULL;
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while (dl_size > 0) {
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dlen = min_t(int, 250, dl_size);
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if (first_block == 1) {
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flag = 1;
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first_block = 0;
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} else if (dl_size - dlen <= 0) {
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flag = 3;
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} else {
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flag = 2;
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}
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wmt_params.flag = flag;
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wmt_params.dlen = dlen;
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wmt_params.data = fw_ptr;
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err = wmt_cmd_sync(hdev, &wmt_params);
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if (err < 0) {
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bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
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err);
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goto err_release_fw;
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}
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dl_size -= dlen;
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fw_ptr += dlen;
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}
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}
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next_section:
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continue;
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}
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/* Wait a few moments for firmware activation done */
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usleep_range(100000, 120000);
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err_release_fw:
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release_firmware(fw);
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return err;
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}
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EXPORT_SYMBOL_GPL(btmtk_setup_firmware_79xx);
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int btmtk_setup_firmware(struct hci_dev *hdev, const char *fwname,
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wmt_cmd_sync_func_t wmt_cmd_sync)
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{
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struct btmtk_hci_wmt_params wmt_params;
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const struct firmware *fw;
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const u8 *fw_ptr;
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size_t fw_size;
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int err, dlen;
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u8 flag, param;
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err = request_firmware(&fw, fwname, &hdev->dev);
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if (err < 0) {
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bt_dev_err(hdev, "Failed to load firmware file (%d)", err);
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return err;
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}
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/* Power on data RAM the firmware relies on. */
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param = 1;
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wmt_params.op = BTMTK_WMT_FUNC_CTRL;
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wmt_params.flag = 3;
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wmt_params.dlen = sizeof(param);
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wmt_params.data = ¶m;
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wmt_params.status = NULL;
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err = wmt_cmd_sync(hdev, &wmt_params);
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if (err < 0) {
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bt_dev_err(hdev, "Failed to power on data RAM (%d)", err);
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goto err_release_fw;
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}
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fw_ptr = fw->data;
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fw_size = fw->size;
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/* The size of patch header is 30 bytes, should be skip */
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if (fw_size < 30) {
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err = -EINVAL;
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goto err_release_fw;
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}
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fw_size -= 30;
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fw_ptr += 30;
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flag = 1;
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wmt_params.op = BTMTK_WMT_PATCH_DWNLD;
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wmt_params.status = NULL;
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while (fw_size > 0) {
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dlen = min_t(int, 250, fw_size);
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/* Tell device the position in sequence */
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if (fw_size - dlen <= 0)
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flag = 3;
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else if (fw_size < fw->size - 30)
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flag = 2;
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wmt_params.flag = flag;
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wmt_params.dlen = dlen;
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wmt_params.data = fw_ptr;
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err = wmt_cmd_sync(hdev, &wmt_params);
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if (err < 0) {
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bt_dev_err(hdev, "Failed to send wmt patch dwnld (%d)",
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err);
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goto err_release_fw;
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}
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fw_size -= dlen;
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fw_ptr += dlen;
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}
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wmt_params.op = BTMTK_WMT_RST;
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wmt_params.flag = 4;
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wmt_params.dlen = 0;
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wmt_params.data = NULL;
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wmt_params.status = NULL;
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/* Activate funciton the firmware providing to */
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err = wmt_cmd_sync(hdev, &wmt_params);
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if (err < 0) {
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bt_dev_err(hdev, "Failed to send wmt rst (%d)", err);
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goto err_release_fw;
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}
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/* Wait a few moments for firmware activation done */
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usleep_range(10000, 12000);
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err_release_fw:
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release_firmware(fw);
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return err;
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}
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EXPORT_SYMBOL_GPL(btmtk_setup_firmware);
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int btmtk_set_bdaddr(struct hci_dev *hdev, const bdaddr_t *bdaddr)
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{
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struct sk_buff *skb;
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long ret;
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skb = __hci_cmd_sync(hdev, 0xfc1a, 6, bdaddr, HCI_INIT_TIMEOUT);
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if (IS_ERR(skb)) {
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ret = PTR_ERR(skb);
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bt_dev_err(hdev, "changing Mediatek device address failed (%ld)",
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ret);
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return ret;
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}
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kfree_skb(skb);
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return 0;
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}
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EXPORT_SYMBOL_GPL(btmtk_set_bdaddr);
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MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
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MODULE_AUTHOR("Mark Chen <mark-yw.chen@mediatek.com>");
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MODULE_DESCRIPTION("Bluetooth support for MediaTek devices ver " VERSION);
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MODULE_VERSION(VERSION);
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MODULE_LICENSE("GPL");
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MODULE_FIRMWARE(FIRMWARE_MT7622);
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MODULE_FIRMWARE(FIRMWARE_MT7663);
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MODULE_FIRMWARE(FIRMWARE_MT7668);
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MODULE_FIRMWARE(FIRMWARE_MT7961);
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