--- /dev/null
+/*
+ * MediaTek Bluetooth USB Driver
+ *
+ * Copyright (C) 2013, MediaTek co.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * or on the worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/skbuff.h>
+#include <linux/completion.h>
+#include <linux/firmware.h>
+#include <linux/usb.h>
+#include <linux/version.h>
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
+
+#include "btmtk_usb.h"
+
+#define VERSION "1.0.4"
+#define MT7650_FIRMWARE "mt7650.bin"
+#define MT7662_FIRMWARE "mt7662.bin"
+
+static struct usb_driver btmtk_usb_driver;
+
+
+static int btmtk_usb_load_rom_patch(struct btmtk_usb_data *);
+static int btmtk_usb_load_fw(struct btmtk_usb_data *);
+
+void hex_dump(char *str, u8 *src_buf, u32 src_buf_len)
+{
+ unsigned char *pt;
+ int x;
+
+ pt = src_buf;
+
+ BT_DBG("%s: %p, len = %d\n", str, src_buf, src_buf_len);
+
+ for (x = 0; x < src_buf_len; x++) {
+ if (x % 16 == 0)
+ BT_DBG("0x%04x : ", x);
+ BT_DBG("%02x ", ((unsigned char)pt[x]));
+ if (x % 16 == 15)
+ BT_DBG("\n");
+ }
+
+ BT_DBG("\n");
+}
+
+static int btmtk_usb_reset(struct usb_device *udev)
+{
+ int ret;
+
+ BT_DBG("%s\n", __func__);
+
+ ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x01, DEVICE_VENDOR_REQUEST_OUT,
+ 0x01, 0x00, NULL, 0x00, CONTROL_TIMEOUT_JIFFIES);
+
+ if (ret < 0) {
+ BT_ERR("%s error(%d)\n", __func__, ret);
+ return ret;
+ }
+
+ if (ret > 0)
+ ret = 0;
+
+ return ret;
+}
+
+static int btmtk_usb_io_read32(struct btmtk_usb_data *data, u32 reg, u32 *val)
+{
+ u8 request = data->r_request;
+ struct usb_device *udev = data->udev;
+ int ret;
+
+ ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), request, DEVICE_VENDOR_REQUEST_IN,
+ 0x0, reg, data->io_buf, 4,
+ CONTROL_TIMEOUT_JIFFIES);
+
+ if (ret < 0) {
+ *val = 0xffffffff;
+ BT_ERR("%s error(%d), reg=%x, value=%x\n", __func__, ret, reg, *val);
+ return ret;
+ }
+
+ memmove(val, data->io_buf, 4);
+
+ *val = le32_to_cpu(*val);
+
+ if (ret > 0)
+ ret = 0;
+
+ return ret;
+}
+
+static int btmtk_usb_io_write32(struct btmtk_usb_data *data, u32 reg, u32 val)
+{
+ u16 value, index;
+ u8 request = data->w_request;
+ struct usb_device *udev = data->udev;
+ int ret;
+
+ index = (u16)reg;
+ value = val & 0x0000ffff;
+
+ ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), request, DEVICE_VENDOR_REQUEST_OUT,
+ value, index, NULL, 0,
+ CONTROL_TIMEOUT_JIFFIES);
+
+ if (ret < 0) {
+ BT_ERR("%s error(%d), reg=%x, value=%x\n", __func__, ret, reg, val);
+ return ret;
+ }
+
+ index = (u16)(reg + 2);
+ value = (val & 0xffff0000) >> 16;
+
+ ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
+ request, DEVICE_VENDOR_REQUEST_OUT,
+ value, index, NULL, 0, CONTROL_TIMEOUT_JIFFIES);
+
+ if (ret < 0) {
+ BT_ERR("%s error(%d), reg=%x, value=%x\n", __func__, ret, reg, val);
+ return ret;
+ }
+
+ if (ret > 0)
+ ret = 0;
+
+ return ret;
+}
+
+static int btmtk_usb_switch_iobase(struct btmtk_usb_data *data, int base)
+{
+ int ret = 0;
+
+ switch (base) {
+ case SYSCTL:
+ data->w_request = 0x42;
+ data->r_request = 0x47;
+ break;
+ case WLAN:
+ data->w_request = 0x02;
+ data->r_request = 0x07;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+static void btmtk_usb_cap_init(struct btmtk_usb_data *data)
+{
+ const struct firmware *firmware;
+ struct usb_device *udev = data->udev;
+ int ret;
+
+ btmtk_usb_io_read32(data, 0x00, &data->chip_id);
+
+ BT_DBG("chip id = %x\n", data->chip_id);
+
+ if (is_mt7630(data) || is_mt7650(data)) {
+ data->need_load_fw = 1;
+ data->need_load_rom_patch = 0;
+ ret = request_firmware(&firmware, MT7650_FIRMWARE, &udev->dev);
+ if (ret < 0) {
+ if (ret == -ENOENT) {
+ BT_ERR("Firmware file \"%s\" not found \n", MT7650_FIRMWARE);
+ } else {
+ BT_ERR("Firmware file \"%s\" request failed (err=%d) \n",
+ MT7650_FIRMWARE, ret);
+ }
+ } else {
+ BT_DBG("Firmware file \"%s\" Found \n", MT7650_FIRMWARE);
+ /* load firmware here */
+ data->firmware = firmware;
+ btmtk_usb_load_fw(data);
+ }
+ release_firmware(firmware);
+ } else if (is_mt7632(data) || is_mt7662(data)) {
+ data->need_load_fw = 0;
+ data->need_load_rom_patch = 1;
+ data->rom_patch_offset = 0x90000;
+ ret = request_firmware(&firmware, MT7662_FIRMWARE, &udev->dev);
+ if (ret < 0) {
+ if (ret == -ENOENT) {
+ BT_ERR("Firmware file \"%s\" not found\n", MT7662_FIRMWARE);
+ } else {
+ BT_ERR("Firmware file \"%s\" request failed (err=%d)\n",
+ MT7662_FIRMWARE, ret);
+ }
+ } else {
+ BT_DBG("Firmware file \"%s\" Found\n", MT7662_FIRMWARE);
+ /* load rom patch here */
+ data->firmware = firmware;
+ data->rom_patch_len = firmware->size;
+ btmtk_usb_load_rom_patch(data);
+ }
+ release_firmware(firmware);
+ } else {
+ BT_ERR("unknow chip(%x)\n", data->chip_id);
+ }
+}
+
+u16 checksume16(u8 *pData, int len)
+{
+ int sum = 0;
+
+ while (len > 1) {
+ sum += *((u16 *)pData);
+
+ pData = pData + 2;
+
+ if (sum & 0x80000000)
+ sum = (sum & 0xFFFF) + (sum >> 16);
+
+ len -= 2;
+ }
+
+ if (len)
+ sum += *((u8 *)pData);
+
+ while (sum >> 16) {
+ sum = (sum & 0xFFFF) + (sum >> 16);
+ }
+
+ return ~sum;
+}
+
+static int btmtk_usb_chk_crc(struct btmtk_usb_data *data, u32 checksum_len)
+{
+ int ret = 0;
+ struct usb_device *udev = data->udev;
+
+ BT_DBG("%s\n", __func__);
+
+ memmove(data->io_buf, &data->rom_patch_offset, 4);
+ memmove(&data->io_buf[4], &checksum_len, 4);
+
+ ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x1, DEVICE_VENDOR_REQUEST_IN,
+ 0x20, 0x00, data->io_buf, 8,
+ CONTROL_TIMEOUT_JIFFIES);
+
+ if (ret < 0) {
+ BT_ERR("%s error(%d)\n", __func__, ret);
+ }
+
+ return ret;
+}
+
+static u16 btmtk_usb_get_crc(struct btmtk_usb_data *data)
+{
+ int ret = 0;
+ struct usb_device *udev = data->udev;
+ u16 crc, count = 0;
+
+ BT_DBG("%s\n", __func__);
+
+ while (1) {
+ ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
+ 0x01, DEVICE_VENDOR_REQUEST_IN,
+ 0x21, 0x00, data->io_buf, 2,
+ CONTROL_TIMEOUT_JIFFIES);
+
+ if (ret < 0) {
+ crc = 0xFFFF;
+ BT_ERR("%s error(%d)\n", __func__, ret);
+ }
+
+ memmove(&crc, data->io_buf, 2);
+
+ crc = le16_to_cpu(crc);
+
+ if (crc != 0xFFFF)
+ break;
+
+ mdelay(100);
+
+ if (count++ > 100) {
+ BT_ERR("Query CRC over %d times\n", count);
+ break;
+ }
+ }
+
+ return crc;
+}
+
+static int btmtk_usb_reset_wmt(struct btmtk_usb_data *data)
+{
+ int ret = 0;
+
+ /* reset command */
+ u8 cmd[8] = {0x6F, 0xFC, 0x05, 0x01, 0x07, 0x01, 0x00, 0x04};
+
+ memmove(data->io_buf, cmd, 8);
+
+ BT_DBG("%s\n", __func__);
+
+ ret = usb_control_msg(data->udev, usb_sndctrlpipe(data->udev, 0), 0x01,
+ DEVICE_CLASS_REQUEST_OUT, 0x12, 0x00, data->io_buf,
+ 8, CONTROL_TIMEOUT_JIFFIES);
+
+ if (ret)
+ BT_ERR("%s:(%d)\n", __func__, ret);
+
+ return ret;
+}
+
+static void load_rom_patch_complete(struct urb *urb)
+{
+
+ struct completion *sent_to_mcu_done = (struct completion *)urb->context;
+
+ complete(sent_to_mcu_done);
+}
+
+static int btmtk_usb_load_rom_patch(struct btmtk_usb_data *data)
+{
+ u32 loop = 0;
+ u32 value;
+ s32 sent_len;
+ int ret = 0, total_checksum = 0;
+ struct urb *urb;
+ u32 patch_len = 0;
+ u32 cur_len = 0;
+ dma_addr_t data_dma;
+ struct completion sent_to_mcu_done;
+ int first_block = 1;
+ unsigned char phase;
+ void *buf;
+ char *pos;
+ unsigned int pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
+
+ if (!data->firmware) {
+ BT_ERR("%s:please assign a rom patch\n", __func__);
+ return -1;
+ }
+
+load_patch_protect:
+ btmtk_usb_switch_iobase(data, WLAN);
+ btmtk_usb_io_read32(data, SEMAPHORE_03, &value);
+ loop++;
+
+ if (((value & 0x01) == 0x00) && (loop < 600)) {
+ mdelay(1);
+ goto load_patch_protect;
+ }
+
+ btmtk_usb_io_write32(data, 0x1004, 0x2c);
+
+ btmtk_usb_switch_iobase(data, SYSCTL);
+
+ btmtk_usb_io_write32(data, 0x1c, 0x30);
+
+ /* Enable USB_DMA_CFG */
+ btmtk_usb_io_write32(data, 0x9018, 0x00c00020);
+
+ btmtk_usb_switch_iobase(data, WLAN);
+
+ /* check ROM patch if upgrade */
+ btmtk_usb_io_read32(data, COM_REG0, &value);
+
+ if ((value & 0x02) == 0x02)
+ goto error0;
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+
+ if (!urb) {
+ ret = -ENOMEM;
+ goto error0;
+ }
+
+ buf = usb_alloc_coherent(data->udev, UPLOAD_PATCH_UNIT, GFP_ATOMIC, &data_dma);
+
+ if (!buf) {
+ ret = -ENOMEM;
+ goto error1;
+ }
+
+ pos = buf;
+ BT_DBG("loading rom patch");
+
+ init_completion(&sent_to_mcu_done);
+
+ cur_len = 0x00;
+ patch_len = data->rom_patch_len - PATCH_INFO_SIZE;
+
+ /* loading rom patch */
+ while (1) {
+ s32 sent_len_max = UPLOAD_PATCH_UNIT - PATCH_HEADER_SIZE;
+ sent_len = (patch_len - cur_len) >= sent_len_max ? sent_len_max : (patch_len - cur_len);
+
+ BT_DBG("patch_len = %d\n", patch_len);
+ BT_DBG("cur_len = %d\n", cur_len);
+ BT_DBG("sent_len = %d\n", sent_len);
+
+ if (sent_len > 0) {
+ if (first_block == 1) {
+ if (sent_len < sent_len_max)
+ phase = PATCH_PHASE3;
+ else
+ phase = PATCH_PHASE1;
+ first_block = 0;
+ } else if (sent_len == sent_len_max) {
+ phase = PATCH_PHASE2;
+ } else {
+ phase = PATCH_PHASE3;
+ }
+
+ /* prepare HCI header */
+ pos[0] = 0x6F;
+ pos[1] = 0xFC;
+ pos[2] = (sent_len + 5) & 0xFF;
+ pos[3] = ((sent_len + 5) >> 8) & 0xFF;
+
+ /* prepare WMT header */
+ pos[4] = 0x01;
+ pos[5] = 0x01;
+ pos[6] = (sent_len + 1) & 0xFF;
+ pos[7] = ((sent_len + 1) >> 8) & 0xFF;
+
+ pos[8] = phase;
+
+ memcpy(&pos[9], data->firmware->data + PATCH_INFO_SIZE + cur_len, sent_len);
+
+ BT_DBG("sent_len + PATCH_HEADER_SIZE = %d, phase = %d\n",
+ sent_len + PATCH_HEADER_SIZE, phase);
+
+ usb_fill_bulk_urb(urb,
+ data->udev,
+ pipe,
+ buf,
+ sent_len + PATCH_HEADER_SIZE,
+ load_rom_patch_complete,
+ &sent_to_mcu_done);
+
+ urb->transfer_dma = data_dma;
+ urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+
+ if (ret)
+ goto error2;
+
+ if (!wait_for_completion_timeout(&sent_to_mcu_done, msecs_to_jiffies(1000))) {
+ usb_kill_urb(urb);
+ BT_ERR("upload rom_patch timeout\n");
+ goto error2;
+ }
+
+ BT_DBG(".");
+
+ mdelay(200);
+
+ cur_len += sent_len;
+
+ } else {
+ break;
+ }
+ }
+
+ total_checksum = checksume16((u8 *)data->firmware->data + PATCH_INFO_SIZE, patch_len);
+
+ BT_DBG("Send checksum req..\n");
+
+ btmtk_usb_chk_crc(data, patch_len);
+
+ mdelay(20);
+
+ if (total_checksum != btmtk_usb_get_crc(data)) {
+ BT_ERR("checksum fail!, local(0x%x) <> fw(0x%x)\n",
+ total_checksum, btmtk_usb_get_crc(data));
+ ret = -1;
+ goto error2;
+ }
+
+ mdelay(20);
+
+ ret = btmtk_usb_reset_wmt(data);
+
+ mdelay(20);
+
+error2:
+ usb_free_coherent(data->udev, UPLOAD_PATCH_UNIT, buf, data_dma);
+error1:
+ usb_free_urb(urb);
+error0:
+ btmtk_usb_io_write32(data, SEMAPHORE_03, 0x1);
+ return ret;
+}
+
+
+static int load_fw_iv(struct btmtk_usb_data *data)
+{
+ int ret;
+ struct usb_device *udev = data->udev;
+ char *buf = kmalloc(64, GFP_ATOMIC);
+
+ memmove(buf, data->firmware->data + 32, 64);
+
+ ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x01,
+ DEVICE_VENDOR_REQUEST_OUT, 0x12, 0x0, buf, 64,
+ CONTROL_TIMEOUT_JIFFIES);
+
+ if (ret < 0) {
+ BT_ERR("%s error(%d) step4\n", __func__, ret);
+ kfree(buf);
+ return ret;
+ }
+
+ if (ret > 0)
+ ret = 0;
+
+ kfree(buf);
+
+ return ret;
+}
+
+static void load_fw_complete(struct urb *urb)
+{
+
+ struct completion *sent_to_mcu_done = (struct completion *)urb->context;
+
+ complete(sent_to_mcu_done);
+}
+
+static int btmtk_usb_load_fw(struct btmtk_usb_data *data)
+{
+ struct usb_device *udev = data->udev;
+ struct urb *urb;
+ void *buf;
+ u32 cur_len = 0;
+ u32 packet_header = 0;
+ u32 value;
+ u32 ilm_len = 0, dlm_len = 0;
+ u16 fw_ver, build_ver;
+ u32 loop = 0;
+ dma_addr_t data_dma;
+ int ret = 0, sent_len;
+ struct completion sent_to_mcu_done;
+ unsigned int pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
+
+ if (!data->firmware) {
+ BT_ERR("%s:please assign a fw\n", __func__);
+ return -1;
+ }
+
+ BT_DBG("bulk_tx_ep = %x\n", data->bulk_tx_ep->bEndpointAddress);
+
+loadfw_protect:
+ btmtk_usb_switch_iobase(data, WLAN);
+ btmtk_usb_io_read32(data, SEMAPHORE_00, &value);
+ loop++;
+
+ if (((value & 0x1) == 0) && (loop < 10000))
+ goto loadfw_protect;
+
+ /* check MCU if ready */
+ btmtk_usb_io_read32(data, COM_REG0, &value);
+
+ if ((value & 0x01) == 0x01)
+ goto error0;
+
+ /* Enable MPDMA TX and EP2 load FW mode */
+ btmtk_usb_io_write32(data, 0x238, 0x1c000000);
+
+ btmtk_usb_reset(udev);
+ mdelay(100);
+
+ ilm_len = (*(data->firmware->data + 3) << 24)
+ | (*(data->firmware->data + 2) << 16)
+ | (*(data->firmware->data + 1) << 8)
+ | (*data->firmware->data);
+
+ dlm_len = (*(data->firmware->data + 7) << 24)
+ | (*(data->firmware->data + 6) << 16)
+ | (*(data->firmware->data + 5) << 8)
+ | (*(data->firmware->data + 4));
+
+ fw_ver = (*(data->firmware->data + 11) << 8) | (*(data->firmware->data + 10));
+
+ build_ver = (*(data->firmware->data + 9) << 8) | (*(data->firmware->data + 8));
+
+ BT_DBG("fw version:%d.%d.%02d ",
+ (fw_ver & 0xf000) >> 8,
+ (fw_ver & 0x0f00) >> 8,
+ (fw_ver & 0x00ff));
+
+ BT_DBG("build:%x\n", build_ver);
+
+ BT_DBG("build Time =");
+
+ for (loop = 0; loop < 16; loop++)
+ BT_DBG("%c", *(data->firmware->data + 16 + loop));
+
+ BT_DBG("\n");
+
+ BT_DBG("ILM length = %d(bytes)\n", ilm_len);
+ BT_DBG("DLM length = %d(bytes)\n", dlm_len);
+
+ btmtk_usb_switch_iobase(data, SYSCTL);
+
+ /* U2M_PDMA rx_ring_base_ptr */
+ btmtk_usb_io_write32(data, 0x790, 0x400230);
+
+ /* U2M_PDMA rx_ring_max_cnt */
+ btmtk_usb_io_write32(data, 0x794, 0x1);
+
+ /* U2M_PDMA cpu_idx */
+ btmtk_usb_io_write32(data, 0x798, 0x1);
+
+ /* U2M_PDMA enable */
+ btmtk_usb_io_write32(data, 0x704, 0x44);
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+
+ if (!urb) {
+ ret = -ENOMEM;
+ goto error1;
+ }
+
+ buf = usb_alloc_coherent(udev, 14592, GFP_ATOMIC, &data_dma);
+
+ if (!buf) {
+ ret = -ENOMEM;
+ goto error2;
+ }
+
+ BT_DBG("loading fw");
+
+ init_completion(&sent_to_mcu_done);
+
+ btmtk_usb_switch_iobase(data, SYSCTL);
+
+ cur_len = 0x40;
+
+ /* Loading ILM */
+ while (1) {
+ sent_len = (ilm_len - cur_len) >= 14336 ? 14336 : (ilm_len - cur_len);
+
+ if (sent_len > 0) {
+ packet_header &= ~(0xffffffff);
+ packet_header |= (sent_len << 16);
+ packet_header = cpu_to_le32(packet_header);
+
+ memmove(buf, &packet_header, 4);
+ memmove(buf + 4, data->firmware->data + 32 + cur_len, sent_len);
+
+ /* U2M_PDMA descriptor */
+ btmtk_usb_io_write32(data, 0x230, cur_len);
+
+ while ((sent_len % 4) != 0) {
+ sent_len++;
+ }
+
+ /* U2M_PDMA length */
+ btmtk_usb_io_write32(data, 0x234, sent_len << 16);
+
+ usb_fill_bulk_urb(urb,
+ udev,
+ pipe,
+ buf,
+ sent_len + 4,
+ load_fw_complete,
+ &sent_to_mcu_done);
+
+ urb->transfer_dma = data_dma;
+ urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+
+ if (ret)
+ goto error3;
+
+ if (!wait_for_completion_timeout(&sent_to_mcu_done, msecs_to_jiffies(1000))) {
+ usb_kill_urb(urb);
+ BT_ERR("upload ilm fw timeout\n");
+ goto error3;
+ }
+
+ BT_DBG(".");
+
+ mdelay(200);
+
+ cur_len += sent_len;
+ } else {
+ break;
+ }
+ }
+
+ init_completion(&sent_to_mcu_done);
+ cur_len = 0x00;
+
+ /* Loading DLM */
+ while (1) {
+ sent_len = (dlm_len - cur_len) >= 14336 ? 14336 : (dlm_len - cur_len);
+
+ if (sent_len > 0) {
+ packet_header &= ~(0xffffffff);
+ packet_header |= (sent_len << 16);
+ packet_header = cpu_to_le32(packet_header);
+
+ memmove(buf, &packet_header, 4);
+ memmove(buf + 4, data->firmware->data + 32 + ilm_len + cur_len, sent_len);
+
+ /* U2M_PDMA descriptor */
+ btmtk_usb_io_write32(data, 0x230, 0x80000 + cur_len);
+
+ while ((sent_len % 4) != 0) {
+ BT_DBG("sent_len is not divided by 4\n");
+ sent_len++;
+ }
+
+ /* U2M_PDMA length */
+ btmtk_usb_io_write32(data, 0x234, sent_len << 16);
+
+ usb_fill_bulk_urb(urb,
+ udev,
+ pipe,
+ buf,
+ sent_len + 4,
+ load_fw_complete,
+ &sent_to_mcu_done);
+
+ urb->transfer_dma = data_dma;
+ urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+ ret = usb_submit_urb(urb, GFP_ATOMIC);
+
+ if (ret)
+ goto error3;
+
+ if (!wait_for_completion_timeout(&sent_to_mcu_done, msecs_to_jiffies(1000))) {
+ usb_kill_urb(urb);
+ BT_ERR("upload dlm fw timeout\n");
+ goto error3;
+ }
+
+ BT_DBG(".");
+
+ mdelay(500);
+
+ cur_len += sent_len;
+
+ } else {
+ break;
+ }
+ }
+
+ /* upload 64bytes interrupt vector */
+ ret = load_fw_iv(data);
+ mdelay(100);
+
+ btmtk_usb_switch_iobase(data, WLAN);
+
+ /* check MCU if ready */
+ loop = 0;
+
+ do {
+ btmtk_usb_io_read32(data, COM_REG0, &value);
+
+ if (value == 0x01)
+ break;
+
+ mdelay(10);
+ loop++;
+ } while (loop <= 100);
+
+ if (loop > 1000) {
+ BT_ERR("wait for 100 times\n");
+ ret = -ENODEV;
+ }
+
+error3:
+ usb_free_coherent(udev, 14592, buf, data_dma);
+error2:
+ usb_free_urb(urb);
+error1:
+ /* Disbale load fw mode */
+ btmtk_usb_io_read32(data, 0x238, &value);
+ value = value & ~(0x10000000);
+ btmtk_usb_io_write32(data, 0x238, value);
+error0:
+ btmtk_usb_io_write32(data, SEMAPHORE_00, 0x1);
+ return ret;
+}
+
+static int inc_tx(struct btmtk_usb_data *data)
+{
+ unsigned long flags;
+ int rv;
+
+ spin_lock_irqsave(&data->txlock, flags);
+ rv = test_bit(BTUSB_SUSPENDING, &data->flags);
+ if (!rv)
+ data->tx_in_flight++;
+ spin_unlock_irqrestore(&data->txlock, flags);
+
+ return rv;
+}
+
+static void btmtk_usb_intr_complete(struct urb *urb)
+{
+ struct hci_dev *hdev = urb->context;
+ struct btmtk_usb_data *data = hci_get_drvdata(hdev);
+ int err;
+
+ BT_DBG("%s: %s urb %p status %d count %d\n", __func__, hdev->name,
+ urb, urb->status, urb->actual_length);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ return;
+
+ if (urb->status == 0) {
+ hdev->stat.byte_rx += urb->actual_length;
+
+ hex_dump("hci event", urb->transfer_buffer, urb->actual_length);
+
+ if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
+ urb->transfer_buffer,
+ urb->actual_length) < 0) {
+ BT_ERR("%s corrupted event packet", hdev->name);
+ hdev->stat.err_rx++;
+ }
+ }
+
+ if (!test_bit(BTUSB_INTR_RUNNING, &data->flags))
+ return;
+
+ usb_mark_last_busy(data->udev);
+ usb_anchor_urb(urb, &data->intr_anchor);
+
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+
+ if (err < 0) {
+ /* -EPERM: urb is being killed;
+ * -ENODEV: device got disconnected */
+ if (err != -EPERM && err != -ENODEV)
+ BT_ERR("%s urb %p failed to resubmit (%d)",
+ hdev->name, urb, -err);
+ usb_unanchor_urb(urb);
+ }
+}
+
+static int btmtk_usb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
+{
+ struct btmtk_usb_data *data = hci_get_drvdata(hdev);
+ struct urb *urb;
+ unsigned char *buf;
+ unsigned int pipe;
+ int err, size;
+
+ BT_DBG("%s\n", __func__);
+
+ if (!data->intr_ep)
+ return -ENODEV;
+
+ urb = usb_alloc_urb(0, mem_flags);
+ if (!urb)
+ return -ENOMEM;
+
+ size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
+
+ buf = kmalloc(size, mem_flags);
+ if (!buf) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ pipe = usb_rcvintpipe(data->udev, data->intr_ep->bEndpointAddress);
+
+ usb_fill_int_urb(urb, data->udev, pipe, buf, size,
+ btmtk_usb_intr_complete, hdev,
+ data->intr_ep->bInterval);
+
+ urb->transfer_flags |= URB_FREE_BUFFER;
+
+ usb_anchor_urb(urb, &data->intr_anchor);
+
+ err = usb_submit_urb(urb, mem_flags);
+ if (err < 0) {
+ if (err != -EPERM && err != -ENODEV)
+ BT_ERR("%s urb %p submission failed (%d)",
+ hdev->name, urb, -err);
+ usb_unanchor_urb(urb);
+ }
+
+ usb_free_urb(urb);
+
+ return err;
+
+}
+
+static void btmtk_usb_bulk_in_complete(struct urb *urb)
+{
+ struct hci_dev *hdev = urb->context;
+ struct btmtk_usb_data *data = hci_get_drvdata(hdev);
+ int err;
+
+ BT_DBG("%s:%s urb %p status %d count %d", __func__, hdev->name,
+ urb, urb->status, urb->actual_length);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags)) {
+ return;
+ }
+
+ if (urb->status == 0) {
+ hdev->stat.byte_rx += urb->actual_length;
+
+ if (hci_recv_fragment(hdev, HCI_ACLDATA_PKT,
+ urb->transfer_buffer,
+ urb->actual_length) < 0) {
+ BT_ERR("%s corrupted ACL packet", hdev->name);
+ hdev->stat.err_rx++;
+ }
+ }
+
+ if (!test_bit(BTUSB_BULK_RUNNING, &data->flags))
+ return;
+
+ usb_anchor_urb(urb, &data->bulk_anchor);
+ usb_mark_last_busy(data->udev);
+
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ /* -EPERM: urb is being killed;
+ * -ENODEV: device got disconnected */
+ if (err != -EPERM && err != -ENODEV)
+ BT_ERR("%s urb %p failed to resubmit (%d)",
+ hdev->name, urb, -err);
+ usb_unanchor_urb(urb);
+ }
+}
+
+static int btmtk_usb_submit_bulk_in_urb(struct hci_dev *hdev, gfp_t mem_flags)
+{
+ struct btmtk_usb_data *data = hci_get_drvdata(hdev);
+ struct urb *urb;
+ unsigned char *buf;
+ unsigned int pipe;
+ int err, size = HCI_MAX_FRAME_SIZE;
+
+ BT_DBG("%s:%s\n", __func__, hdev->name);
+
+ if (!data->bulk_rx_ep)
+ return -ENODEV;
+
+ urb = usb_alloc_urb(0, mem_flags);
+ if (!urb)
+ return -ENOMEM;
+
+ buf = kmalloc(size, mem_flags);
+ if (!buf) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
+
+ usb_fill_bulk_urb(urb, data->udev, pipe,
+ buf, size, btmtk_usb_bulk_in_complete, hdev);
+
+ urb->transfer_flags |= URB_FREE_BUFFER;
+
+ usb_mark_last_busy(data->udev);
+ usb_anchor_urb(urb, &data->bulk_anchor);
+
+ err = usb_submit_urb(urb, mem_flags);
+ if (err < 0) {
+ if (err != -EPERM && err != -ENODEV)
+ BT_ERR("%s urb %p submission failed (%d)",
+ hdev->name, urb, -err);
+ usb_unanchor_urb(urb);
+ }
+
+ usb_free_urb(urb);
+
+ return err;
+}
+
+static void btmtk_usb_isoc_in_complete(struct urb *urb)
+
+{
+ struct hci_dev *hdev = urb->context;
+ struct btmtk_usb_data *data = hci_get_drvdata(hdev);
+ int i, err;
+
+ BT_DBG("%s: %s urb %p status %d count %d", __func__, hdev->name,
+ urb, urb->status, urb->actual_length);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ return;
+
+ if (urb->status == 0) {
+ for (i = 0; i < urb->number_of_packets; i++) {
+ unsigned int offset = urb->iso_frame_desc[i].offset;
+ unsigned int length = urb->iso_frame_desc[i].actual_length;
+
+ if (urb->iso_frame_desc[i].status)
+ continue;
+
+ hdev->stat.byte_rx += length;
+
+ if (hci_recv_fragment(hdev, HCI_SCODATA_PKT,
+ urb->transfer_buffer + offset,
+ length) < 0) {
+ BT_ERR("%s corrupted SCO packet", hdev->name);
+ hdev->stat.err_rx++;
+ }
+ }
+ }
+
+ if (!test_bit(BTUSB_ISOC_RUNNING, &data->flags))
+ return;
+
+ usb_anchor_urb(urb, &data->isoc_anchor);
+
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ /* -EPERM: urb is being killed;
+ * -ENODEV: device got disconnected */
+ if (err != -EPERM && err != -ENODEV)
+ BT_ERR("%s urb %p failed to resubmit (%d)",
+ hdev->name, urb, -err);
+ usb_unanchor_urb(urb);
+ }
+}
+
+static inline void __fill_isoc_descriptor(struct urb *urb, int len, int mtu)
+{
+ int i, offset = 0;
+
+ BT_DBG("len %d mtu %d", len, mtu);
+
+ for (i = 0; i < BTUSB_MAX_ISOC_FRAMES && len >= mtu;
+ i++, offset += mtu, len -= mtu) {
+ urb->iso_frame_desc[i].offset = offset;
+ urb->iso_frame_desc[i].length = mtu;
+ }
+
+ if (len && i < BTUSB_MAX_ISOC_FRAMES) {
+ urb->iso_frame_desc[i].offset = offset;
+ urb->iso_frame_desc[i].length = len;
+ i++;
+ }
+
+ urb->number_of_packets = i;
+}
+
+static int btmtk_usb_submit_isoc_in_urb(struct hci_dev *hdev, gfp_t mem_flags)
+{
+ struct btmtk_usb_data *data = hci_get_drvdata(hdev);
+ struct urb *urb;
+ unsigned char *buf;
+ unsigned int pipe;
+ int err, size;
+
+ BT_DBG("%s\n", __func__);
+
+ if (!data->isoc_rx_ep)
+ return -ENODEV;
+
+ urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, mem_flags);
+ if (!urb)
+ return -ENOMEM;
+
+ size = le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize) *
+ BTUSB_MAX_ISOC_FRAMES;
+
+ buf = kmalloc(size, mem_flags);
+ if (!buf) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
+
+ usb_fill_int_urb(urb, data->udev, pipe, buf, size, btmtk_usb_isoc_in_complete,
+ hdev, data->isoc_rx_ep->bInterval);
+
+ urb->transfer_flags = URB_FREE_BUFFER | URB_ISO_ASAP;
+
+ __fill_isoc_descriptor(urb, size,
+ le16_to_cpu(data->isoc_rx_ep->wMaxPacketSize));
+
+ usb_anchor_urb(urb, &data->isoc_anchor);
+
+ err = usb_submit_urb(urb, mem_flags);
+ if (err < 0) {
+ if (err != -EPERM && err != -ENODEV)
+ BT_ERR("%s urb %p submission failed (%d)",
+ hdev->name, urb, -err);
+ usb_unanchor_urb(urb);
+ }
+
+ usb_free_urb(urb);
+
+ return err;
+}
+
+static int btmtk_usb_open(struct hci_dev *hdev)
+{
+ struct btmtk_usb_data *data = hci_get_drvdata(hdev);
+ int err;
+
+ BT_DBG("%s\n", __func__);
+
+ err = usb_autopm_get_interface(data->intf);
+ if (err < 0)
+ return err;
+
+ data->intf->needs_remote_wakeup = 1;
+
+ if (test_and_set_bit(HCI_RUNNING, &hdev->flags))
+ goto done;
+
+ if (test_and_set_bit(BTUSB_INTR_RUNNING, &data->flags))
+ goto done;
+
+ err = btmtk_usb_submit_intr_urb(hdev, GFP_KERNEL);
+ if (err < 0)
+ goto failed;
+
+ err = btmtk_usb_submit_bulk_in_urb(hdev, GFP_KERNEL);
+ if (err < 0) {
+ usb_kill_anchored_urbs(&data->intr_anchor);
+ goto failed;
+ }
+
+ set_bit(BTUSB_BULK_RUNNING, &data->flags);
+ btmtk_usb_submit_bulk_in_urb(hdev, GFP_KERNEL);
+
+done:
+ usb_autopm_put_interface(data->intf);
+ return 0;
+
+failed:
+ clear_bit(BTUSB_INTR_RUNNING, &data->flags);
+ clear_bit(HCI_RUNNING, &hdev->flags);
+ usb_autopm_put_interface(data->intf);
+ return err;
+}
+
+static void btmtk_usb_stop_traffic(struct btmtk_usb_data *data)
+{
+ BT_DBG("%s\n", __func__);
+
+ usb_kill_anchored_urbs(&data->intr_anchor);
+ usb_kill_anchored_urbs(&data->bulk_anchor);
+ usb_kill_anchored_urbs(&data->isoc_anchor);
+}
+
+static int btmtk_usb_close(struct hci_dev *hdev)
+{
+ struct btmtk_usb_data *data = hci_get_drvdata(hdev);
+ int err;
+
+ BT_DBG("%s\n", __func__);
+
+ if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
+ return 0;
+
+ cancel_work_sync(&data->work);
+ cancel_work_sync(&data->waker);
+
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ clear_bit(BTUSB_BULK_RUNNING, &data->flags);
+ clear_bit(BTUSB_INTR_RUNNING, &data->flags);
+
+ btmtk_usb_stop_traffic(data);
+
+ err = usb_autopm_get_interface(data->intf);
+ if (err < 0)
+ goto failed;
+
+ data->intf->needs_remote_wakeup = 0;
+ usb_autopm_put_interface(data->intf);
+
+failed:
+ usb_scuttle_anchored_urbs(&data->deferred);
+ return 0;
+}
+
+static int btmtk_usb_flush(struct hci_dev *hdev)
+{
+ struct btmtk_usb_data *data = hci_get_drvdata(hdev);
+
+ BT_DBG("%s\n", __func__);
+
+ usb_kill_anchored_urbs(&data->tx_anchor);
+
+ return 0;
+}
+
+static void btmtk_usb_tx_complete(struct urb *urb)
+{
+ struct sk_buff *skb = urb->context;
+ struct hci_dev *hdev = (struct hci_dev *)skb->dev;
+ struct btmtk_usb_data *data = hci_get_drvdata(hdev);
+
+ BT_DBG("%s: %s urb %p status %d count %d\n", __func__, hdev->name,
+ urb, urb->status, urb->actual_length);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ goto done;
+
+ if (!urb->status)
+ hdev->stat.byte_tx += urb->transfer_buffer_length;
+ else
+ hdev->stat.err_tx++;
+
+done:
+ spin_lock(&data->txlock);
+ data->tx_in_flight--;
+ spin_unlock(&data->txlock);
+
+ kfree(urb->setup_packet);
+
+ kfree_skb(skb);
+}
+
+static void btmtk_usb_isoc_tx_complete(struct urb *urb)
+{
+ struct sk_buff *skb = urb->context;
+ struct hci_dev *hdev = (struct hci_dev *) skb->dev;
+
+ BT_DBG("%s: %s urb %p status %d count %d", __func__, hdev->name,
+ urb, urb->status, urb->actual_length);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ goto done;
+
+ if (!urb->status)
+ hdev->stat.byte_tx += urb->transfer_buffer_length;
+ else
+ hdev->stat.err_tx++;
+
+done:
+ kfree(urb->setup_packet);
+
+ kfree_skb(skb);
+}
+
+static int btmtk_usb_send_frame(struct sk_buff *skb)
+{
+ struct hci_dev *hdev = (struct hci_dev *)skb->dev;
+ struct btmtk_usb_data *data = hci_get_drvdata(hdev);
+ struct usb_ctrlrequest *dr;
+ struct urb *urb;
+ unsigned int pipe;
+ int err;
+
+ BT_DBG("%s\n", __func__);
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ return -EBUSY;
+
+ switch (bt_cb(skb)->pkt_type) {
+ case HCI_COMMAND_PKT:
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb)
+ return -ENOMEM;
+
+ dr = kmalloc(sizeof(*dr), GFP_ATOMIC);
+ if (!dr) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ dr->bRequestType = data->cmdreq_type;
+ dr->bRequest = 0;
+ dr->wIndex = 0;
+ dr->wValue = 0;
+ dr->wLength = __cpu_to_le16(skb->len);
+
+ pipe = usb_sndctrlpipe(data->udev, 0x00);
+
+ if (test_bit(HCI_RUNNING, &hdev->flags)) {
+ u16 op_code;
+ memcpy(&op_code, skb->data, 2);
+ BT_DBG("ogf = %x\n", (op_code & 0xfc00) >> 10);
+ BT_DBG("ocf = %x\n", op_code & 0x03ff);
+ hex_dump("hci command", skb->data, skb->len);
+
+ }
+
+ usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
+ skb->data, skb->len, btmtk_usb_tx_complete, skb);
+
+ hdev->stat.cmd_tx++;
+ break;
+
+ case HCI_ACLDATA_PKT:
+ if (!data->bulk_tx_ep)
+ return -ENODEV;
+
+ urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!urb)
+ return -ENOMEM;
+
+ pipe = usb_sndbulkpipe(data->udev,
+ data->bulk_tx_ep->bEndpointAddress);
+
+ usb_fill_bulk_urb(urb, data->udev, pipe,
+ skb->data, skb->len, btmtk_usb_tx_complete, skb);
+
+ hdev->stat.acl_tx++;
+ BT_DBG("HCI_ACLDATA_PKT:\n");
+ break;
+
+ case HCI_SCODATA_PKT:
+ if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
+ return -ENODEV;
+
+ urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
+ if (!urb)
+ return -ENOMEM;
+
+ pipe = usb_sndisocpipe(data->udev,
+ data->isoc_tx_ep->bEndpointAddress);
+
+ usb_fill_int_urb(urb, data->udev, pipe,
+ skb->data, skb->len, btmtk_usb_isoc_tx_complete,
+ skb, data->isoc_tx_ep->bInterval);
+
+ urb->transfer_flags = URB_ISO_ASAP;
+
+ __fill_isoc_descriptor(urb, skb->len,
+ le16_to_cpu(data->isoc_tx_ep->wMaxPacketSize));
+
+ hdev->stat.sco_tx++;
+ BT_DBG("HCI_SCODATA_PKT:\n");
+ goto skip_waking;
+
+ default:
+ return -EILSEQ;
+ }
+
+ err = inc_tx(data);
+
+ if (err) {
+ usb_anchor_urb(urb, &data->deferred);
+ schedule_work(&data->waker);
+ err = 0;
+ goto done;
+ }
+
+skip_waking:
+ usb_anchor_urb(urb, &data->tx_anchor);
+
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ if (err != -EPERM && err != -ENODEV)
+ BT_ERR("%s urb %p submission failed (%d)",
+ hdev->name, urb, -err);
+ kfree(urb->setup_packet);
+ usb_unanchor_urb(urb);
+ } else {
+ usb_mark_last_busy(data->udev);
+ }
+
+done:
+ usb_free_urb(urb);
+ return err;
+}
+
+static void btmtk_usb_notify(struct hci_dev *hdev, unsigned int evt)
+{
+ struct btmtk_usb_data *data = hci_get_drvdata(hdev);
+
+ BT_DBG("%s evt %d", hdev->name, evt);
+
+ if (hdev->conn_hash.sco_num != data->sco_num) {
+ data->sco_num = hdev->conn_hash.sco_num;
+ schedule_work(&data->work);
+ }
+}
+
+static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
+{
+ struct btmtk_usb_data *data = hci_get_drvdata(hdev);
+ struct usb_interface *intf = data->isoc;
+ struct usb_endpoint_descriptor *ep_desc;
+ int i, err;
+
+ if (!data->isoc)
+ return -ENODEV;
+
+ err = usb_set_interface(data->udev, 1, altsetting);
+ if (err < 0) {
+ BT_ERR("%s setting interface failed (%d)", hdev->name, -err);
+ return err;
+ }
+
+ data->isoc_altsetting = altsetting;
+
+ data->isoc_tx_ep = NULL;
+ data->isoc_rx_ep = NULL;
+
+ for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
+ ep_desc = &intf->cur_altsetting->endpoint[i].desc;
+
+ if (!data->isoc_tx_ep && usb_endpoint_is_isoc_out(ep_desc)) {
+ data->isoc_tx_ep = ep_desc;
+ continue;
+ }
+
+ if (!data->isoc_rx_ep && usb_endpoint_is_isoc_in(ep_desc)) {
+ data->isoc_rx_ep = ep_desc;
+ continue;
+ }
+ }
+
+ if (!data->isoc_tx_ep || !data->isoc_rx_ep) {
+ BT_ERR("%s invalid SCO descriptors", hdev->name);
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static void btmtk_usb_work(struct work_struct *work)
+{
+ struct btmtk_usb_data *data = container_of(work, struct btmtk_usb_data, work);
+ struct hci_dev *hdev = data->hdev;
+ int new_alts;
+ int err;
+
+ BT_DBG("%s\n", __func__);
+
+ if (hdev->conn_hash.sco_num > 0) {
+ if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
+ err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
+ if (err < 0) {
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ usb_kill_anchored_urbs(&data->isoc_anchor);
+ return;
+ }
+
+ set_bit(BTUSB_DID_ISO_RESUME, &data->flags);
+ }
+
+ if (hdev->voice_setting & 0x0020) {
+ static const int alts[3] = { 2, 4, 5 };
+ new_alts = alts[hdev->conn_hash.sco_num - 1];
+ } else {
+ new_alts = hdev->conn_hash.sco_num;
+ }
+
+ if (data->isoc_altsetting != new_alts) {
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ usb_kill_anchored_urbs(&data->isoc_anchor);
+
+ if (__set_isoc_interface(hdev, new_alts) < 0)
+ return;
+ }
+
+ if (!test_and_set_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
+ if (btmtk_usb_submit_isoc_in_urb(hdev, GFP_KERNEL) < 0)
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ else
+ btmtk_usb_submit_isoc_in_urb(hdev, GFP_KERNEL);
+ }
+ } else {
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ usb_kill_anchored_urbs(&data->isoc_anchor);
+
+ __set_isoc_interface(hdev, 0);
+
+ if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
+ usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
+ }
+}
+
+static void btmtk_usb_waker(struct work_struct *work)
+{
+ struct btmtk_usb_data *data = container_of(work, struct btmtk_usb_data, waker);
+ int err;
+
+ err = usb_autopm_get_interface(data->intf);
+
+ if (err < 0)
+ return;
+
+ usb_autopm_put_interface(data->intf);
+}
+
+static int btmtk_usb_probe(struct usb_interface *intf,
+ const struct usb_device_id *id)
+{
+ struct btmtk_usb_data *data;
+ struct usb_endpoint_descriptor *ep_desc;
+ int i, err;
+ struct hci_dev *hdev;
+
+ /* interface numbers are hardcoded in the spec */
+ if (intf->cur_altsetting->desc.bInterfaceNumber != 0)
+ return -ENODEV;
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+
+ if (!data)
+ return -ENOMEM;
+
+ for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i++) {
+ ep_desc = &intf->cur_altsetting->endpoint[i].desc;
+
+ if (!data->intr_ep && usb_endpoint_is_int_in(ep_desc)) {
+ data->intr_ep = ep_desc;
+ continue;
+ }
+
+ if (!data->bulk_tx_ep && usb_endpoint_is_bulk_out(ep_desc)) {
+ data->bulk_tx_ep = ep_desc;
+ continue;
+ }
+
+ if (!data->bulk_rx_ep && usb_endpoint_is_bulk_in(ep_desc)) {
+ data->bulk_rx_ep = ep_desc;
+ continue;
+ }
+ }
+
+ if (!data->intr_ep || !data->bulk_tx_ep || !data->bulk_rx_ep) {
+ kfree(data);
+ return -ENODEV;
+ }
+
+ data->cmdreq_type = USB_TYPE_CLASS;
+
+ data->udev = interface_to_usbdev(intf);
+ data->intf = intf;
+
+ spin_lock_init(&data->lock);
+ INIT_WORK(&data->work, btmtk_usb_work);
+ INIT_WORK(&data->waker, btmtk_usb_waker);
+ spin_lock_init(&data->txlock);
+
+ init_usb_anchor(&data->tx_anchor);
+ init_usb_anchor(&data->intr_anchor);
+ init_usb_anchor(&data->bulk_anchor);
+ init_usb_anchor(&data->isoc_anchor);
+ init_usb_anchor(&data->deferred);
+
+ hdev = hci_alloc_dev();
+ if (!hdev) {
+ kfree(data);
+ return -ENOMEM;
+ }
+
+ hdev->bus = HCI_USB;
+
+ hci_set_drvdata(hdev, data);
+
+ data->hdev = hdev;
+
+ SET_HCIDEV_DEV(hdev, &intf->dev);
+
+ hdev->open = btmtk_usb_open;
+ hdev->close = btmtk_usb_close;
+ hdev->flush = btmtk_usb_flush;
+ hdev->send = btmtk_usb_send_frame;
+ hdev->notify = btmtk_usb_notify;
+
+ /* Interface numbers are hardcoded in the specification */
+ data->isoc = usb_ifnum_to_if(data->udev, 1);
+
+ if (data->isoc) {
+ err = usb_driver_claim_interface(&btmtk_usb_driver,
+ data->isoc, data);
+ if (err < 0) {
+ hci_free_dev(hdev);
+ kfree(data);
+ return err;
+ }
+ }
+
+ data->io_buf = kmalloc(256, GFP_ATOMIC);
+
+ btmtk_usb_switch_iobase(data, WLAN);
+
+ btmtk_usb_cap_init(data);
+
+ err = hci_register_dev(hdev);
+ if (err < 0) {
+ hci_free_dev(hdev);
+ kfree(data);
+ return err;
+ }
+
+ usb_set_intfdata(intf, data);
+
+ return 0;
+}
+
+static void btmtk_usb_disconnect(struct usb_interface *intf)
+{
+ struct btmtk_usb_data *data = usb_get_intfdata(intf);
+ struct hci_dev *hdev;
+
+ BT_DBG("%s\n", __func__);
+
+ if (!data)
+ return;
+
+ hdev = data->hdev;
+ usb_set_intfdata(data->intf, NULL);
+
+ if (data->isoc)
+ usb_set_intfdata(data->isoc, NULL);
+
+ hci_unregister_dev(hdev);
+
+ if (intf == data->isoc)
+ usb_driver_release_interface(&btmtk_usb_driver, data->intf);
+ else if (data->isoc)
+ usb_driver_release_interface(&btmtk_usb_driver, data->isoc);
+
+ hci_free_dev(hdev);
+
+ kfree(data->io_buf);
+
+ kfree(data);
+}
+
+#ifdef CONFIG_PM
+static int btmtk_usb_suspend(struct usb_interface *intf, pm_message_t message)
+{
+ struct btmtk_usb_data *data = usb_get_intfdata(intf);
+
+ BT_DBG("%s\n", __func__);
+
+ if (data->suspend_count++)
+ return 0;
+
+ spin_lock_irq(&data->txlock);
+ if (!(PMSG_IS_AUTO(message) && data->tx_in_flight)) {
+ set_bit(BTUSB_SUSPENDING, &data->flags);
+ spin_unlock_irq(&data->txlock);
+ } else {
+ spin_unlock_irq(&data->txlock);
+ data->suspend_count--;
+ return -EBUSY;
+ }
+
+ cancel_work_sync(&data->work);
+
+ btmtk_usb_stop_traffic(data);
+ usb_kill_anchored_urbs(&data->tx_anchor);
+
+ return 0;
+}
+
+static void play_deferred(struct btmtk_usb_data *data)
+{
+ struct urb *urb;
+ int err;
+
+ while ((urb = usb_get_from_anchor(&data->deferred))) {
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0)
+ break;
+
+ data->tx_in_flight++;
+ }
+
+ usb_scuttle_anchored_urbs(&data->deferred);
+}
+
+static int btmtk_usb_resume(struct usb_interface *intf)
+{
+ struct btmtk_usb_data *data = usb_get_intfdata(intf);
+ struct hci_dev *hdev = data->hdev;
+ int err = 0;
+
+ BT_DBG("%s\n", __func__);
+
+ if (--data->suspend_count)
+ return 0;
+
+ if (!test_bit(HCI_RUNNING, &hdev->flags))
+ goto done;
+
+ if (test_bit(BTUSB_INTR_RUNNING, &data->flags)) {
+ err = btmtk_usb_submit_intr_urb(hdev, GFP_NOIO);
+ if (err < 0) {
+ clear_bit(BTUSB_INTR_RUNNING, &data->flags);
+ goto failed;
+ }
+ }
+
+ if (test_bit(BTUSB_BULK_RUNNING, &data->flags)) {
+ err = btmtk_usb_submit_bulk_in_urb(hdev, GFP_NOIO);
+ if (err < 0) {
+ clear_bit(BTUSB_BULK_RUNNING, &data->flags);
+ goto failed;
+ }
+
+ btmtk_usb_submit_bulk_in_urb(hdev, GFP_NOIO);
+ }
+
+ if (test_bit(BTUSB_ISOC_RUNNING, &data->flags)) {
+ if (btmtk_usb_submit_isoc_in_urb(hdev, GFP_NOIO) < 0)
+ clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
+ else
+ btmtk_usb_submit_isoc_in_urb(hdev, GFP_NOIO);
+ }
+
+ spin_lock_irq(&data->txlock);
+ play_deferred(data);
+ clear_bit(BTUSB_SUSPENDING, &data->flags);
+ spin_unlock_irq(&data->txlock);
+ schedule_work(&data->work);
+
+ return 0;
+
+failed:
+ usb_scuttle_anchored_urbs(&data->deferred);
+done:
+ spin_lock_irq(&data->txlock);
+ clear_bit(BTUSB_SUSPENDING, &data->flags);
+ spin_unlock_irq(&data->txlock);
+
+ return err;
+}
+#endif
+
+static struct usb_device_id btmtk_usb_table[] = {
+ /* Mediatek MT7650 */
+ { USB_DEVICE(0x0e8d, 0x7650) },
+ { USB_DEVICE(0x0e8d, 0x7630) },
+ { USB_DEVICE(0x0e8d, 0x763e) },
+ /* Mediatek MT662 */
+ { USB_DEVICE(0x0e8d, 0x7662) },
+ { USB_DEVICE(0x0e8d, 0x7632) },
+ { } /* Terminating entry */
+};
+
+static struct usb_driver btmtk_usb_driver = {
+ .name = "btmtk_usb",
+ .probe = btmtk_usb_probe,
+ .disconnect = btmtk_usb_disconnect,
+#ifdef CONFIG_PM
+ .suspend = btmtk_usb_suspend,
+ .resume = btmtk_usb_resume,
+#endif
+ .id_table = btmtk_usb_table,
+ .supports_autosuspend = 1,
+ .disable_hub_initiated_lpm = 1,
+};
+
+static int __init btmtk_usb_init(void)
+{
+ BT_INFO("btmtk usb driver ver %s", VERSION);
+
+ return usb_register(&btmtk_usb_driver);
+}
+
+static void __exit btmtk_usb_exit(void)
+{
+ usb_deregister(&btmtk_usb_driver);
+}
+
+module_init(btmtk_usb_init);
+module_exit(btmtk_usb_exit);
+
+MODULE_DESCRIPTION("Mediatek Bluetooth USB driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(MT7650_FIRMWARE);
+MODULE_FIRMWARE(MT7662_FIRMWARE);
projects / users / hch / block.git / commitdiff