538 lines
15 KiB
C
538 lines
15 KiB
C
// 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/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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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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/* 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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/* 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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/* 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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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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switch (fw_version.ref_clock) {
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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",
|
|
le32_to_cpu(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) {
|
|
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);
|