| /* |
| * 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); |