+++ /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 <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 *);
-
-static 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;
- __le32 val_le;
-
- 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_le, data->io_buf, 4);
-
- *val = le32_to_cpu(val_le);
-
- 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);
- }
-}
-
-static 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;
- __le16 crc_le;
-
- 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_le, data->io_buf, 2);
-
- crc = le16_to_cpu(crc_le);
-
- 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;
- 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 = min_t(s32, (patch_len - cur_len), sent_len_max);
-
- 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)
- break;
-
- 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;
-
- }
-
- 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;
- __le32 packet_header_le;
- 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;
- 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 = min_t(s32, (ilm_len - cur_len), 14336);
-
- if (sent_len > 0) {
- packet_header &= ~(0xffffffff);
- packet_header |= (sent_len << 16);
- packet_header_le = cpu_to_le32(packet_header);
-
- memmove(buf, &packet_header_le, 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 = min_t(s32, (dlm_len - cur_len), 14336);
-
- if (sent_len <= 0)
- break;
-
- packet_header &= ~(0xffffffff);
- packet_header |= (sent_len << 16);
- packet_header_le = cpu_to_le32(packet_header);
-
- memmove(buf, &packet_header_le, 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;
-
- }
-
- /* 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;
- 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 hci_dev *hdev, struct sk_buff *skb)
-{
- 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_KERNEL);
- if (!data->io_buf) {
- hci_free_dev(hdev);
- kfree(data);
- return -ENOMEM;
- }
-
- 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,
-};
-
-module_usb_driver(btmtk_usb_driver);
-
-MODULE_DESCRIPTION("Mediatek Bluetooth USB driver ver " VERSION);
-MODULE_VERSION(VERSION);
-MODULE_LICENSE("GPL");
-MODULE_FIRMWARE(MT7650_FIRMWARE);
-MODULE_FIRMWARE(MT7662_FIRMWARE);
projects / platform / kernel / linux-arm64.git / commitdiff