| /* |
| * Copyright (c) 2008-2009 Atheros Communications Inc. |
| * |
| * 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 |
| * |
| */ |
| |
| |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/slab.h> |
| #include <linux/types.h> |
| #include <linux/errno.h> |
| #include <linux/device.h> |
| #include <linux/firmware.h> |
| #include <linux/usb.h> |
| #include <net/bluetooth/bluetooth.h> |
| |
| #define VERSION "1.0" |
| #define ATH3K_FIRMWARE "ath3k-1.fw" |
| |
| #define ATH3K_DNLOAD 0x01 |
| #define ATH3K_GETSTATE 0x05 |
| #define ATH3K_SET_NORMAL_MODE 0x07 |
| #define ATH3K_GETVERSION 0x09 |
| #define USB_REG_SWITCH_VID_PID 0x0a |
| |
| #define ATH3K_MODE_MASK 0x3F |
| #define ATH3K_NORMAL_MODE 0x0E |
| |
| #define ATH3K_PATCH_UPDATE 0x80 |
| #define ATH3K_SYSCFG_UPDATE 0x40 |
| |
| #define ATH3K_XTAL_FREQ_26M 0x00 |
| #define ATH3K_XTAL_FREQ_40M 0x01 |
| #define ATH3K_XTAL_FREQ_19P2 0x02 |
| #define ATH3K_NAME_LEN 0xFF |
| |
| struct ath3k_version { |
| unsigned int rom_version; |
| unsigned int build_version; |
| unsigned int ram_version; |
| unsigned char ref_clock; |
| unsigned char reserved[0x07]; |
| }; |
| |
| static const struct usb_device_id ath3k_table[] = { |
| /* Atheros AR3011 */ |
| { USB_DEVICE(0x0CF3, 0x3000) }, |
| |
| /* Atheros AR3011 with sflash firmware*/ |
| { USB_DEVICE(0x0489, 0xE027) }, |
| { USB_DEVICE(0x0489, 0xE03D) }, |
| { USB_DEVICE(0x0930, 0x0215) }, |
| { USB_DEVICE(0x0CF3, 0x3002) }, |
| { USB_DEVICE(0x0CF3, 0xE019) }, |
| { USB_DEVICE(0x13d3, 0x3304) }, |
| |
| /* Atheros AR9285 Malbec with sflash firmware */ |
| { USB_DEVICE(0x03F0, 0x311D) }, |
| |
| /* Atheros AR3012 with sflash firmware*/ |
| { USB_DEVICE(0x0489, 0xe04d) }, |
| { USB_DEVICE(0x0489, 0xe04e) }, |
| { USB_DEVICE(0x0489, 0xe057) }, |
| { USB_DEVICE(0x0489, 0xe056) }, |
| { USB_DEVICE(0x0489, 0xe05f) }, |
| { USB_DEVICE(0x04c5, 0x1330) }, |
| { USB_DEVICE(0x04CA, 0x3004) }, |
| { USB_DEVICE(0x04CA, 0x3005) }, |
| { USB_DEVICE(0x04CA, 0x3006) }, |
| { USB_DEVICE(0x04CA, 0x3008) }, |
| { USB_DEVICE(0x04CA, 0x300b) }, |
| { USB_DEVICE(0x0930, 0x0219) }, |
| { USB_DEVICE(0x0930, 0x0220) }, |
| { USB_DEVICE(0x0CF3, 0x0036) }, |
| { USB_DEVICE(0x0CF3, 0x3004) }, |
| { USB_DEVICE(0x0CF3, 0x3008) }, |
| { USB_DEVICE(0x0CF3, 0x311D) }, |
| { USB_DEVICE(0x0CF3, 0x311E) }, |
| { USB_DEVICE(0x0CF3, 0x311F) }, |
| { USB_DEVICE(0x0cf3, 0x3121) }, |
| { USB_DEVICE(0x0CF3, 0x817a) }, |
| { USB_DEVICE(0x0cf3, 0xe003) }, |
| { USB_DEVICE(0x0CF3, 0xE004) }, |
| { USB_DEVICE(0x0CF3, 0xE005) }, |
| { USB_DEVICE(0x13d3, 0x3362) }, |
| { USB_DEVICE(0x13d3, 0x3375) }, |
| { USB_DEVICE(0x13d3, 0x3393) }, |
| { USB_DEVICE(0x13d3, 0x3402) }, |
| |
| /* Atheros AR5BBU12 with sflash firmware */ |
| { USB_DEVICE(0x0489, 0xE02C) }, |
| |
| /* Atheros AR5BBU22 with sflash firmware */ |
| { USB_DEVICE(0x0489, 0xE036) }, |
| { USB_DEVICE(0x0489, 0xE03C) }, |
| |
| { } /* Terminating entry */ |
| }; |
| |
| MODULE_DEVICE_TABLE(usb, ath3k_table); |
| |
| #define BTUSB_ATH3012 0x80 |
| /* This table is to load patch and sysconfig files |
| * for AR3012 */ |
| static const struct usb_device_id ath3k_blist_tbl[] = { |
| |
| /* Atheros AR3012 with sflash firmware*/ |
| { USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, |
| |
| /* Atheros AR5BBU22 with sflash firmware */ |
| { USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 }, |
| { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 }, |
| |
| { } /* Terminating entry */ |
| }; |
| |
| #define USB_REQ_DFU_DNLOAD 1 |
| #define BULK_SIZE 4096 |
| #define FW_HDR_SIZE 20 |
| |
| static int ath3k_load_firmware(struct usb_device *udev, |
| const struct firmware *firmware) |
| { |
| u8 *send_buf; |
| int err, pipe, len, size, sent = 0; |
| int count = firmware->size; |
| |
| BT_DBG("udev %p", udev); |
| |
| pipe = usb_sndctrlpipe(udev, 0); |
| |
| send_buf = kmalloc(BULK_SIZE, GFP_KERNEL); |
| if (!send_buf) { |
| BT_ERR("Can't allocate memory chunk for firmware"); |
| return -ENOMEM; |
| } |
| |
| memcpy(send_buf, firmware->data, 20); |
| if ((err = usb_control_msg(udev, pipe, |
| USB_REQ_DFU_DNLOAD, |
| USB_TYPE_VENDOR, 0, 0, |
| send_buf, 20, USB_CTRL_SET_TIMEOUT)) < 0) { |
| BT_ERR("Can't change to loading configuration err"); |
| goto error; |
| } |
| sent += 20; |
| count -= 20; |
| |
| while (count) { |
| size = min_t(uint, count, BULK_SIZE); |
| pipe = usb_sndbulkpipe(udev, 0x02); |
| memcpy(send_buf, firmware->data + sent, size); |
| |
| err = usb_bulk_msg(udev, pipe, send_buf, size, |
| &len, 3000); |
| |
| if (err || (len != size)) { |
| BT_ERR("Error in firmware loading err = %d," |
| "len = %d, size = %d", err, len, size); |
| goto error; |
| } |
| |
| sent += size; |
| count -= size; |
| } |
| |
| error: |
| kfree(send_buf); |
| return err; |
| } |
| |
| static int ath3k_get_state(struct usb_device *udev, unsigned char *state) |
| { |
| int ret, pipe = 0; |
| char *buf; |
| |
| buf = kmalloc(sizeof(*buf), GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| pipe = usb_rcvctrlpipe(udev, 0); |
| ret = usb_control_msg(udev, pipe, ATH3K_GETSTATE, |
| USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, |
| buf, sizeof(*buf), USB_CTRL_SET_TIMEOUT); |
| |
| *state = *buf; |
| kfree(buf); |
| |
| return ret; |
| } |
| |
| static int ath3k_get_version(struct usb_device *udev, |
| struct ath3k_version *version) |
| { |
| int ret, pipe = 0; |
| struct ath3k_version *buf; |
| const int size = sizeof(*buf); |
| |
| buf = kmalloc(size, GFP_KERNEL); |
| if (!buf) |
| return -ENOMEM; |
| |
| pipe = usb_rcvctrlpipe(udev, 0); |
| ret = usb_control_msg(udev, pipe, ATH3K_GETVERSION, |
| USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, |
| buf, size, USB_CTRL_SET_TIMEOUT); |
| |
| memcpy(version, buf, size); |
| kfree(buf); |
| |
| return ret; |
| } |
| |
| static int ath3k_load_fwfile(struct usb_device *udev, |
| const struct firmware *firmware) |
| { |
| u8 *send_buf; |
| int err, pipe, len, size, count, sent = 0; |
| int ret; |
| |
| count = firmware->size; |
| |
| send_buf = kmalloc(BULK_SIZE, GFP_KERNEL); |
| if (!send_buf) { |
| BT_ERR("Can't allocate memory chunk for firmware"); |
| return -ENOMEM; |
| } |
| |
| size = min_t(uint, count, FW_HDR_SIZE); |
| memcpy(send_buf, firmware->data, size); |
| |
| pipe = usb_sndctrlpipe(udev, 0); |
| ret = usb_control_msg(udev, pipe, ATH3K_DNLOAD, |
| USB_TYPE_VENDOR, 0, 0, send_buf, |
| size, USB_CTRL_SET_TIMEOUT); |
| if (ret < 0) { |
| BT_ERR("Can't change to loading configuration err"); |
| kfree(send_buf); |
| return ret; |
| } |
| |
| sent += size; |
| count -= size; |
| |
| while (count) { |
| size = min_t(uint, count, BULK_SIZE); |
| pipe = usb_sndbulkpipe(udev, 0x02); |
| |
| memcpy(send_buf, firmware->data + sent, size); |
| |
| err = usb_bulk_msg(udev, pipe, send_buf, size, |
| &len, 3000); |
| if (err || (len != size)) { |
| BT_ERR("Error in firmware loading err = %d," |
| "len = %d, size = %d", err, len, size); |
| kfree(send_buf); |
| return err; |
| } |
| sent += size; |
| count -= size; |
| } |
| |
| kfree(send_buf); |
| return 0; |
| } |
| |
| static int ath3k_switch_pid(struct usb_device *udev) |
| { |
| int pipe = 0; |
| |
| pipe = usb_sndctrlpipe(udev, 0); |
| return usb_control_msg(udev, pipe, USB_REG_SWITCH_VID_PID, |
| USB_TYPE_VENDOR, 0, 0, |
| NULL, 0, USB_CTRL_SET_TIMEOUT); |
| } |
| |
| static int ath3k_set_normal_mode(struct usb_device *udev) |
| { |
| unsigned char fw_state; |
| int pipe = 0, ret; |
| |
| ret = ath3k_get_state(udev, &fw_state); |
| if (ret < 0) { |
| BT_ERR("Can't get state to change to normal mode err"); |
| return ret; |
| } |
| |
| if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) { |
| BT_DBG("firmware was already in normal mode"); |
| return 0; |
| } |
| |
| pipe = usb_sndctrlpipe(udev, 0); |
| return usb_control_msg(udev, pipe, ATH3K_SET_NORMAL_MODE, |
| USB_TYPE_VENDOR, 0, 0, |
| NULL, 0, USB_CTRL_SET_TIMEOUT); |
| } |
| |
| static int ath3k_load_patch(struct usb_device *udev) |
| { |
| unsigned char fw_state; |
| char filename[ATH3K_NAME_LEN] = {0}; |
| const struct firmware *firmware; |
| struct ath3k_version fw_version, pt_version; |
| int ret; |
| |
| ret = ath3k_get_state(udev, &fw_state); |
| if (ret < 0) { |
| BT_ERR("Can't get state to change to load ram patch err"); |
| return ret; |
| } |
| |
| if (fw_state & ATH3K_PATCH_UPDATE) { |
| BT_DBG("Patch was already downloaded"); |
| return 0; |
| } |
| |
| ret = ath3k_get_version(udev, &fw_version); |
| if (ret < 0) { |
| BT_ERR("Can't get version to change to load ram patch err"); |
| return ret; |
| } |
| |
| snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu", |
| fw_version.rom_version); |
| |
| ret = request_firmware(&firmware, filename, &udev->dev); |
| if (ret < 0) { |
| BT_ERR("Patch file not found %s", filename); |
| return ret; |
| } |
| |
| pt_version.rom_version = *(int *)(firmware->data + firmware->size - 8); |
| pt_version.build_version = *(int *) |
| (firmware->data + firmware->size - 4); |
| |
| if ((pt_version.rom_version != fw_version.rom_version) || |
| (pt_version.build_version <= fw_version.build_version)) { |
| BT_ERR("Patch file version did not match with firmware"); |
| release_firmware(firmware); |
| return -EINVAL; |
| } |
| |
| ret = ath3k_load_fwfile(udev, firmware); |
| release_firmware(firmware); |
| |
| return ret; |
| } |
| |
| static int ath3k_load_syscfg(struct usb_device *udev) |
| { |
| unsigned char fw_state; |
| char filename[ATH3K_NAME_LEN] = {0}; |
| const struct firmware *firmware; |
| struct ath3k_version fw_version; |
| int clk_value, ret; |
| |
| ret = ath3k_get_state(udev, &fw_state); |
| if (ret < 0) { |
| BT_ERR("Can't get state to change to load configuration err"); |
| return -EBUSY; |
| } |
| |
| ret = ath3k_get_version(udev, &fw_version); |
| if (ret < 0) { |
| BT_ERR("Can't get version to change to load ram patch err"); |
| return ret; |
| } |
| |
| switch (fw_version.ref_clock) { |
| |
| case ATH3K_XTAL_FREQ_26M: |
| clk_value = 26; |
| break; |
| case ATH3K_XTAL_FREQ_40M: |
| clk_value = 40; |
| break; |
| case ATH3K_XTAL_FREQ_19P2: |
| clk_value = 19; |
| break; |
| default: |
| clk_value = 0; |
| break; |
| } |
| |
| snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s", |
| fw_version.rom_version, clk_value, ".dfu"); |
| |
| ret = request_firmware(&firmware, filename, &udev->dev); |
| if (ret < 0) { |
| BT_ERR("Configuration file not found %s", filename); |
| return ret; |
| } |
| |
| ret = ath3k_load_fwfile(udev, firmware); |
| release_firmware(firmware); |
| |
| return ret; |
| } |
| |
| static int ath3k_probe(struct usb_interface *intf, |
| const struct usb_device_id *id) |
| { |
| const struct firmware *firmware; |
| struct usb_device *udev = interface_to_usbdev(intf); |
| int ret; |
| |
| BT_DBG("intf %p id %p", intf, id); |
| |
| if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
| return -ENODEV; |
| |
| /* match device ID in ath3k blacklist table */ |
| if (!id->driver_info) { |
| const struct usb_device_id *match; |
| match = usb_match_id(intf, ath3k_blist_tbl); |
| if (match) |
| id = match; |
| } |
| |
| /* load patch and sysconfig files for AR3012 */ |
| if (id->driver_info & BTUSB_ATH3012) { |
| |
| /* New firmware with patch and sysconfig files already loaded */ |
| if (le16_to_cpu(udev->descriptor.bcdDevice) > 0x0001) |
| return -ENODEV; |
| |
| ret = ath3k_load_patch(udev); |
| if (ret < 0) { |
| BT_ERR("Loading patch file failed"); |
| return ret; |
| } |
| ret = ath3k_load_syscfg(udev); |
| if (ret < 0) { |
| BT_ERR("Loading sysconfig file failed"); |
| return ret; |
| } |
| ret = ath3k_set_normal_mode(udev); |
| if (ret < 0) { |
| BT_ERR("Set normal mode failed"); |
| return ret; |
| } |
| ath3k_switch_pid(udev); |
| return 0; |
| } |
| |
| ret = request_firmware(&firmware, ATH3K_FIRMWARE, &udev->dev); |
| if (ret < 0) { |
| if (ret == -ENOENT) |
| BT_ERR("Firmware file \"%s\" not found", |
| ATH3K_FIRMWARE); |
| else |
| BT_ERR("Firmware file \"%s\" request failed (err=%d)", |
| ATH3K_FIRMWARE, ret); |
| return ret; |
| } |
| |
| ret = ath3k_load_firmware(udev, firmware); |
| release_firmware(firmware); |
| |
| return ret; |
| } |
| |
| static void ath3k_disconnect(struct usb_interface *intf) |
| { |
| BT_DBG("ath3k_disconnect intf %p", intf); |
| } |
| |
| static struct usb_driver ath3k_driver = { |
| .name = "ath3k", |
| .probe = ath3k_probe, |
| .disconnect = ath3k_disconnect, |
| .id_table = ath3k_table, |
| .disable_hub_initiated_lpm = 1, |
| }; |
| |
| module_usb_driver(ath3k_driver); |
| |
| MODULE_AUTHOR("Atheros Communications"); |
| MODULE_DESCRIPTION("Atheros AR30xx firmware driver"); |
| MODULE_VERSION(VERSION); |
| MODULE_LICENSE("GPL"); |
| MODULE_FIRMWARE(ATH3K_FIRMWARE); |