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541 lines
15 KiB
541 lines
15 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright (c) 2008-2009 Atheros Communications Inc. |
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*/ |
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#include <linux/module.h> |
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#include <linux/kernel.h> |
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#include <linux/init.h> |
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#include <linux/slab.h> |
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#include <linux/types.h> |
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#include <linux/errno.h> |
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#include <linux/device.h> |
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#include <linux/firmware.h> |
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#include <linux/usb.h> |
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#include <asm/unaligned.h> |
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#include <net/bluetooth/bluetooth.h> |
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#define VERSION "1.0" |
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#define ATH3K_FIRMWARE "ath3k-1.fw" |
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#define ATH3K_DNLOAD 0x01 |
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#define ATH3K_GETSTATE 0x05 |
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#define ATH3K_SET_NORMAL_MODE 0x07 |
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#define ATH3K_GETVERSION 0x09 |
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#define USB_REG_SWITCH_VID_PID 0x0a |
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#define ATH3K_MODE_MASK 0x3F |
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#define ATH3K_NORMAL_MODE 0x0E |
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#define ATH3K_PATCH_UPDATE 0x80 |
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#define ATH3K_SYSCFG_UPDATE 0x40 |
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#define ATH3K_XTAL_FREQ_26M 0x00 |
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#define ATH3K_XTAL_FREQ_40M 0x01 |
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#define ATH3K_XTAL_FREQ_19P2 0x02 |
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#define ATH3K_NAME_LEN 0xFF |
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|
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struct ath3k_version { |
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__le32 rom_version; |
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__le32 build_version; |
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__le32 ram_version; |
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__u8 ref_clock; |
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__u8 reserved[7]; |
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} __packed; |
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static const struct usb_device_id ath3k_table[] = { |
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/* Atheros AR3011 */ |
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{ USB_DEVICE(0x0CF3, 0x3000) }, |
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|
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/* Atheros AR3011 with sflash firmware*/ |
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{ USB_DEVICE(0x0489, 0xE027) }, |
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{ USB_DEVICE(0x0489, 0xE03D) }, |
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{ USB_DEVICE(0x04F2, 0xAFF1) }, |
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{ USB_DEVICE(0x0930, 0x0215) }, |
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{ USB_DEVICE(0x0CF3, 0x3002) }, |
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{ USB_DEVICE(0x0CF3, 0xE019) }, |
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{ USB_DEVICE(0x13d3, 0x3304) }, |
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/* Atheros AR9285 Malbec with sflash firmware */ |
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{ USB_DEVICE(0x03F0, 0x311D) }, |
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|
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/* Atheros AR3012 with sflash firmware*/ |
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{ USB_DEVICE(0x0489, 0xe04d) }, |
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{ USB_DEVICE(0x0489, 0xe04e) }, |
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{ USB_DEVICE(0x0489, 0xe057) }, |
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{ USB_DEVICE(0x0489, 0xe056) }, |
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{ USB_DEVICE(0x0489, 0xe05f) }, |
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{ USB_DEVICE(0x0489, 0xe076) }, |
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{ USB_DEVICE(0x0489, 0xe078) }, |
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{ USB_DEVICE(0x0489, 0xe095) }, |
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{ USB_DEVICE(0x04c5, 0x1330) }, |
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{ USB_DEVICE(0x04CA, 0x3004) }, |
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{ USB_DEVICE(0x04CA, 0x3005) }, |
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{ USB_DEVICE(0x04CA, 0x3006) }, |
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{ USB_DEVICE(0x04CA, 0x3007) }, |
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{ USB_DEVICE(0x04CA, 0x3008) }, |
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{ USB_DEVICE(0x04CA, 0x300b) }, |
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{ USB_DEVICE(0x04CA, 0x300d) }, |
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{ USB_DEVICE(0x04CA, 0x300f) }, |
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{ USB_DEVICE(0x04CA, 0x3010) }, |
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{ USB_DEVICE(0x04CA, 0x3014) }, |
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{ USB_DEVICE(0x04CA, 0x3018) }, |
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{ USB_DEVICE(0x0930, 0x0219) }, |
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{ USB_DEVICE(0x0930, 0x021c) }, |
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{ USB_DEVICE(0x0930, 0x0220) }, |
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{ USB_DEVICE(0x0930, 0x0227) }, |
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{ USB_DEVICE(0x0b05, 0x17d0) }, |
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{ USB_DEVICE(0x0CF3, 0x0036) }, |
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{ USB_DEVICE(0x0CF3, 0x3004) }, |
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{ USB_DEVICE(0x0CF3, 0x3008) }, |
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{ USB_DEVICE(0x0CF3, 0x311D) }, |
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{ USB_DEVICE(0x0CF3, 0x311E) }, |
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{ USB_DEVICE(0x0CF3, 0x311F) }, |
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{ USB_DEVICE(0x0cf3, 0x3121) }, |
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{ USB_DEVICE(0x0CF3, 0x817a) }, |
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{ USB_DEVICE(0x0CF3, 0x817b) }, |
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{ USB_DEVICE(0x0cf3, 0xe003) }, |
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{ USB_DEVICE(0x0CF3, 0xE004) }, |
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{ USB_DEVICE(0x0CF3, 0xE005) }, |
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{ USB_DEVICE(0x0CF3, 0xE006) }, |
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{ USB_DEVICE(0x13d3, 0x3362) }, |
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{ USB_DEVICE(0x13d3, 0x3375) }, |
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{ USB_DEVICE(0x13d3, 0x3393) }, |
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{ USB_DEVICE(0x13d3, 0x3395) }, |
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{ USB_DEVICE(0x13d3, 0x3402) }, |
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{ USB_DEVICE(0x13d3, 0x3408) }, |
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{ USB_DEVICE(0x13d3, 0x3423) }, |
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{ USB_DEVICE(0x13d3, 0x3432) }, |
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{ USB_DEVICE(0x13d3, 0x3472) }, |
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{ USB_DEVICE(0x13d3, 0x3474) }, |
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{ USB_DEVICE(0x13d3, 0x3487) }, |
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{ USB_DEVICE(0x13d3, 0x3490) }, |
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/* Atheros AR5BBU12 with sflash firmware */ |
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{ USB_DEVICE(0x0489, 0xE02C) }, |
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/* Atheros AR5BBU22 with sflash firmware */ |
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{ USB_DEVICE(0x0489, 0xE036) }, |
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{ USB_DEVICE(0x0489, 0xE03C) }, |
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{ } /* Terminating entry */ |
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}; |
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MODULE_DEVICE_TABLE(usb, ath3k_table); |
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#define BTUSB_ATH3012 0x80 |
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/* This table is to load patch and sysconfig files |
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* for AR3012 |
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*/ |
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static const struct usb_device_id ath3k_blist_tbl[] = { |
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|
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/* Atheros AR3012 with sflash firmware*/ |
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{ USB_DEVICE(0x0489, 0xe04e), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0489, 0xe04d), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0489, 0xe056), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0489, 0xe057), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0489, 0xe05f), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0489, 0xe076), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0489, 0xe078), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0489, 0xe095), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x04c5, 0x1330), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x04ca, 0x3004), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x04ca, 0x3006), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x04ca, 0x3007), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x04ca, 0x3008), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x04ca, 0x300b), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x04ca, 0x300d), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x04ca, 0x300f), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x04ca, 0x3010), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x04ca, 0x3014), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x04ca, 0x3018), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0930, 0x021c), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0930, 0x0220), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0930, 0x0227), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0b05, 0x17d0), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0cf3, 0x3004), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0cf3, 0x3008), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0cf3, 0x311D), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0cf3, 0x311E), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0cf3, 0x311F), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0cf3, 0x3121), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0CF3, 0x817a), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0CF3, 0x817b), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0cf3, 0xe005), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0cf3, 0xe006), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0cf3, 0xe003), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x13d3, 0x3375), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x13d3, 0x3393), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x13d3, 0x3395), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x13d3, 0x3402), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x13d3, 0x3408), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x13d3, 0x3423), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x13d3, 0x3432), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x13d3, 0x3472), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x13d3, 0x3474), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x13d3, 0x3487), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x13d3, 0x3490), .driver_info = BTUSB_ATH3012 }, |
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/* Atheros AR5BBU22 with sflash firmware */ |
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{ USB_DEVICE(0x0489, 0xE036), .driver_info = BTUSB_ATH3012 }, |
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{ USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 }, |
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{ } /* Terminating entry */ |
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}; |
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static inline void ath3k_log_failed_loading(int err, int len, int size, |
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int count) |
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{ |
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BT_ERR("Firmware loading err = %d, len = %d, size = %d, count = %d", |
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err, len, size, count); |
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} |
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#define USB_REQ_DFU_DNLOAD 1 |
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#define BULK_SIZE 4096 |
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#define FW_HDR_SIZE 20 |
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#define TIMEGAP_USEC_MIN 50 |
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#define TIMEGAP_USEC_MAX 100 |
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static int ath3k_load_firmware(struct usb_device *udev, |
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const struct firmware *firmware) |
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{ |
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u8 *send_buf; |
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int len = 0; |
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int err, pipe, size, sent = 0; |
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int count = firmware->size; |
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BT_DBG("udev %p", udev); |
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send_buf = kmalloc(BULK_SIZE, GFP_KERNEL); |
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if (!send_buf) { |
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BT_ERR("Can't allocate memory chunk for firmware"); |
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return -ENOMEM; |
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} |
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err = usb_control_msg_send(udev, 0, USB_REQ_DFU_DNLOAD, USB_TYPE_VENDOR, |
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0, 0, firmware->data, FW_HDR_SIZE, |
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USB_CTRL_SET_TIMEOUT, GFP_KERNEL); |
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if (err) { |
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BT_ERR("Can't change to loading configuration err"); |
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goto error; |
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} |
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sent += FW_HDR_SIZE; |
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count -= FW_HDR_SIZE; |
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pipe = usb_sndbulkpipe(udev, 0x02); |
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while (count) { |
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/* workaround the compatibility issue with xHCI controller*/ |
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usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX); |
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size = min_t(uint, count, BULK_SIZE); |
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memcpy(send_buf, firmware->data + sent, size); |
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err = usb_bulk_msg(udev, pipe, send_buf, size, |
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&len, 3000); |
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if (err || (len != size)) { |
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ath3k_log_failed_loading(err, len, size, count); |
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goto error; |
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} |
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sent += size; |
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count -= size; |
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} |
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error: |
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kfree(send_buf); |
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return err; |
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} |
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static int ath3k_get_state(struct usb_device *udev, unsigned char *state) |
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{ |
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return usb_control_msg_recv(udev, 0, ATH3K_GETSTATE, |
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USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, |
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state, 1, USB_CTRL_SET_TIMEOUT, |
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GFP_KERNEL); |
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} |
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static int ath3k_get_version(struct usb_device *udev, |
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struct ath3k_version *version) |
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{ |
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return usb_control_msg_recv(udev, 0, ATH3K_GETVERSION, |
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USB_TYPE_VENDOR | USB_DIR_IN, 0, 0, |
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version, sizeof(*version), USB_CTRL_SET_TIMEOUT, |
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GFP_KERNEL); |
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} |
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static int ath3k_load_fwfile(struct usb_device *udev, |
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const struct firmware *firmware) |
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{ |
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u8 *send_buf; |
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int len = 0; |
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int err, pipe, size, count, sent = 0; |
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int ret; |
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count = firmware->size; |
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send_buf = kmalloc(BULK_SIZE, GFP_KERNEL); |
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if (!send_buf) { |
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BT_ERR("Can't allocate memory chunk for firmware"); |
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return -ENOMEM; |
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} |
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size = min_t(uint, count, FW_HDR_SIZE); |
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ret = usb_control_msg_send(udev, 0, ATH3K_DNLOAD, USB_TYPE_VENDOR, 0, 0, |
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firmware->data, size, USB_CTRL_SET_TIMEOUT, |
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GFP_KERNEL); |
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if (ret) { |
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BT_ERR("Can't change to loading configuration err"); |
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kfree(send_buf); |
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return ret; |
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} |
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sent += size; |
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count -= size; |
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pipe = usb_sndbulkpipe(udev, 0x02); |
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while (count) { |
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/* workaround the compatibility issue with xHCI controller*/ |
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usleep_range(TIMEGAP_USEC_MIN, TIMEGAP_USEC_MAX); |
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size = min_t(uint, count, BULK_SIZE); |
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memcpy(send_buf, firmware->data + sent, size); |
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err = usb_bulk_msg(udev, pipe, send_buf, size, |
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&len, 3000); |
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if (err || (len != size)) { |
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ath3k_log_failed_loading(err, len, size, count); |
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kfree(send_buf); |
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return err; |
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} |
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sent += size; |
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count -= size; |
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} |
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kfree(send_buf); |
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return 0; |
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} |
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static void ath3k_switch_pid(struct usb_device *udev) |
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{ |
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usb_control_msg_send(udev, 0, USB_REG_SWITCH_VID_PID, USB_TYPE_VENDOR, |
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0, 0, NULL, 0, USB_CTRL_SET_TIMEOUT, GFP_KERNEL); |
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} |
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static int ath3k_set_normal_mode(struct usb_device *udev) |
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{ |
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unsigned char fw_state; |
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int ret; |
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ret = ath3k_get_state(udev, &fw_state); |
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if (ret) { |
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BT_ERR("Can't get state to change to normal mode err"); |
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return ret; |
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} |
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if ((fw_state & ATH3K_MODE_MASK) == ATH3K_NORMAL_MODE) { |
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BT_DBG("firmware was already in normal mode"); |
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return 0; |
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} |
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return usb_control_msg_send(udev, 0, ATH3K_SET_NORMAL_MODE, |
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USB_TYPE_VENDOR, 0, 0, NULL, 0, |
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USB_CTRL_SET_TIMEOUT, GFP_KERNEL); |
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} |
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static int ath3k_load_patch(struct usb_device *udev) |
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{ |
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unsigned char fw_state; |
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char filename[ATH3K_NAME_LEN]; |
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const struct firmware *firmware; |
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struct ath3k_version fw_version; |
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__u32 pt_rom_version, pt_build_version; |
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int ret; |
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ret = ath3k_get_state(udev, &fw_state); |
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if (ret) { |
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BT_ERR("Can't get state to change to load ram patch err"); |
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return ret; |
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} |
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if (fw_state & ATH3K_PATCH_UPDATE) { |
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BT_DBG("Patch was already downloaded"); |
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return 0; |
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} |
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ret = ath3k_get_version(udev, &fw_version); |
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if (ret) { |
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BT_ERR("Can't get version to change to load ram patch err"); |
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return ret; |
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} |
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snprintf(filename, ATH3K_NAME_LEN, "ar3k/AthrBT_0x%08x.dfu", |
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le32_to_cpu(fw_version.rom_version)); |
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ret = request_firmware(&firmware, filename, &udev->dev); |
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if (ret < 0) { |
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BT_ERR("Patch file not found %s", filename); |
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return ret; |
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} |
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pt_rom_version = get_unaligned_le32(firmware->data + |
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firmware->size - 8); |
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pt_build_version = get_unaligned_le32(firmware->data + |
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firmware->size - 4); |
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if (pt_rom_version != le32_to_cpu(fw_version.rom_version) || |
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pt_build_version <= le32_to_cpu(fw_version.build_version)) { |
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BT_ERR("Patch file version did not match with firmware"); |
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release_firmware(firmware); |
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return -EINVAL; |
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} |
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ret = ath3k_load_fwfile(udev, firmware); |
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release_firmware(firmware); |
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return ret; |
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} |
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static int ath3k_load_syscfg(struct usb_device *udev) |
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{ |
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unsigned char fw_state; |
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char filename[ATH3K_NAME_LEN]; |
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const struct firmware *firmware; |
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struct ath3k_version fw_version; |
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int clk_value, ret; |
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ret = ath3k_get_state(udev, &fw_state); |
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if (ret) { |
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BT_ERR("Can't get state to change to load configuration err"); |
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return -EBUSY; |
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} |
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|
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ret = ath3k_get_version(udev, &fw_version); |
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if (ret) { |
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BT_ERR("Can't get version to change to load ram patch err"); |
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return ret; |
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} |
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|
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switch (fw_version.ref_clock) { |
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|
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case ATH3K_XTAL_FREQ_26M: |
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clk_value = 26; |
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break; |
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case ATH3K_XTAL_FREQ_40M: |
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clk_value = 40; |
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break; |
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case ATH3K_XTAL_FREQ_19P2: |
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clk_value = 19; |
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break; |
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default: |
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clk_value = 0; |
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break; |
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} |
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snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s", |
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le32_to_cpu(fw_version.rom_version), clk_value, ".dfu"); |
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ret = request_firmware(&firmware, filename, &udev->dev); |
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if (ret < 0) { |
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BT_ERR("Configuration file not found %s", filename); |
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return ret; |
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} |
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ret = ath3k_load_fwfile(udev, firmware); |
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release_firmware(firmware); |
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|
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return ret; |
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} |
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|
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static int ath3k_probe(struct usb_interface *intf, |
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const struct usb_device_id *id) |
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{ |
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const struct firmware *firmware; |
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struct usb_device *udev = interface_to_usbdev(intf); |
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int ret; |
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|
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BT_DBG("intf %p id %p", intf, id); |
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|
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if (intf->cur_altsetting->desc.bInterfaceNumber != 0) |
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return -ENODEV; |
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|
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/* match device ID in ath3k blacklist table */ |
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if (!id->driver_info) { |
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const struct usb_device_id *match; |
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|
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match = usb_match_id(intf, ath3k_blist_tbl); |
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if (match) |
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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) { |
|
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("%s intf %p", __func__, 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);
|
|
|