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![Oscar Carter](/assets/img/avatar_default.png)
Use const for the arrays that are used as "read only". Also, modify the prototype of vnt_control_out_blocks() function to use a pointer to a const type. The vnt_vt3184_al2230 array can't be converted to const as it's modified later. Then in the vnt_vt3184_init() function use two types of pointers (to const type and to no const type) to avoid the compiler warning: assignment discards 'const' qualifiers from pointer target type This way decrease the .data section and increase the .rodata section limiting the surface attack. Before this change: ------------------- drivers/staging/vt6656/baseband.o : section size addr .text 1278 0 .data 576 0 .bss 0 0 .rodata 319 0 .comment 45 0 .note.GNU-stack 0 0 .note.gnu.property 32 0 Total 2250 After this change: ------------------ drivers/staging/vt6656/baseband.o : section size addr .text 1278 0 .data 256 0 .bss 0 0 .rodata 640 0 .comment 45 0 .note.GNU-stack 0 0 .note.gnu.property 32 0 Total 2251 Signed-off-by: Oscar Carter <oscar.carter@gmx.com> Link: https://lore.kernel.org/r/20200504171414.11307-1-oscar.carter@gmx.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
493 lines
12 KiB
C
493 lines
12 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
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* All rights reserved.
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*
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* File: baseband.c
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*
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* Purpose: Implement functions to access baseband
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*
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* Author: Jerry Chen
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*
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* Date: Jun. 5, 2002
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*
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* Functions:
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* vnt_get_frame_time - Calculate data frame transmitting time
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* vnt_get_phy_field - Calculate PhyLength, PhyService and Phy
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* Signal parameter for baseband Tx
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* vnt_vt3184_init - VIA VT3184 baseband chip init code
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*
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* Revision History:
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*
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*
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*/
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#include <linux/bits.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include "device.h"
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#include "mac.h"
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#include "baseband.h"
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#include "rf.h"
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#include "usbpipe.h"
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static const u8 vnt_vt3184_agc[] = {
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0x00, 0x00, 0x02, 0x02, 0x04, 0x04, 0x06, 0x06,
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0x08, 0x08, 0x0a, 0x0a, 0x0c, 0x0c, 0x0e, 0x0e, /* 0x0f */
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0x10, 0x10, 0x12, 0x12, 0x14, 0x14, 0x16, 0x16,
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0x18, 0x18, 0x1a, 0x1a, 0x1c, 0x1c, 0x1e, 0x1e, /* 0x1f */
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0x20, 0x20, 0x22, 0x22, 0x24, 0x24, 0x26, 0x26,
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0x28, 0x28, 0x2a, 0x2a, 0x2c, 0x2c, 0x2e, 0x2e, /* 0x2f */
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0x30, 0x30, 0x32, 0x32, 0x34, 0x34, 0x36, 0x36,
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0x38, 0x38, 0x3a, 0x3a, 0x3c, 0x3c, 0x3e, 0x3e /* 0x3f */
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};
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static u8 vnt_vt3184_al2230[] = {
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0x31, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00,
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0x70, 0x45, 0x2a, 0x76, 0x00, 0x00, 0x80, 0x00, /* 0x0f */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x8e, 0x0a, 0x00, 0x00, 0x00, /* 0x1f */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x0c, /* 0x2f */
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0x26, 0x5b, 0x00, 0x00, 0x00, 0x00, 0xaa, 0xaa,
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0xff, 0xff, 0x79, 0x00, 0x00, 0x0b, 0x48, 0x04, /* 0x3f */
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0x00, 0x08, 0x00, 0x08, 0x08, 0x14, 0x05, 0x09,
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0x00, 0x00, 0x00, 0x00, 0x09, 0x73, 0x00, 0xc5, /* 0x4f */
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0x00, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0xd0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5f */
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0xe4, 0x80, 0x00, 0x00, 0x00, 0x00, 0x98, 0x0a,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, /* 0x6f */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7f */
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0x8c, 0x01, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x08, 0x00, 0x1f, 0xb7, 0x88, 0x47, 0xaa, 0x00, /* 0x8f */
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0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xeb,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, /* 0x9f */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
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0x18, 0x00, 0x00, 0x00, 0x00, 0x15, 0x00, 0x18, /* 0xaf */
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0x38, 0x30, 0x00, 0x00, 0xff, 0x0f, 0xe4, 0xe2,
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0x00, 0x00, 0x00, 0x03, 0x01, 0x00, 0x00, 0x00, /* 0xbf */
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0x18, 0x20, 0x07, 0x18, 0xff, 0xff, 0x0e, 0x0a,
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0x0e, 0x00, 0x82, 0xa7, 0x3c, 0x10, 0x30, 0x05, /* 0xcf */
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0x40, 0x12, 0x00, 0x00, 0x10, 0x28, 0x80, 0x2a,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xdf */
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0x00, 0xf3, 0x00, 0x00, 0x00, 0x10, 0x00, 0x12,
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0x00, 0xf4, 0x00, 0xff, 0x79, 0x20, 0x30, 0x05, /* 0xef */
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0x00, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* 0xff */
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};
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/* {{RobertYu:20060515, new BB setting for VT3226D0 */
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static const u8 vnt_vt3184_vt3226d0[] = {
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0x31, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00,
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0x70, 0x45, 0x2a, 0x76, 0x00, 0x00, 0x80, 0x00, /* 0x0f */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x8e, 0x0a, 0x00, 0x00, 0x00, /* 0x1f */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x0c, /* 0x2f */
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0x26, 0x5b, 0x00, 0x00, 0x00, 0x00, 0xaa, 0xaa,
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0xff, 0xff, 0x79, 0x00, 0x00, 0x0b, 0x48, 0x04, /* 0x3f */
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0x00, 0x08, 0x00, 0x08, 0x08, 0x14, 0x05, 0x09,
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0x00, 0x00, 0x00, 0x00, 0x09, 0x73, 0x00, 0xc5, /* 0x4f */
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0x00, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0xd0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5f */
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0xe4, 0x80, 0x00, 0x00, 0x00, 0x00, 0x98, 0x0a,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, /* 0x6f */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7f */
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0x8c, 0x01, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x08, 0x00, 0x1f, 0xb7, 0x88, 0x47, 0xaa, 0x00, /* 0x8f */
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0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xeb,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, /* 0x9f */
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00,
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0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, /* 0xaf */
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0x38, 0x30, 0x00, 0x00, 0xff, 0x0f, 0xe4, 0xe2,
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0x00, 0x00, 0x00, 0x03, 0x01, 0x00, 0x00, 0x00, /* 0xbf */
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0x18, 0x20, 0x07, 0x18, 0xff, 0xff, 0x10, 0x0a,
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0x0e, 0x00, 0x84, 0xa7, 0x3c, 0x10, 0x24, 0x05, /* 0xcf */
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0x40, 0x12, 0x00, 0x00, 0x10, 0x28, 0x80, 0x2a,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xdf */
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0x00, 0xf3, 0x00, 0x00, 0x00, 0x10, 0x00, 0x10,
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0x00, 0xf4, 0x00, 0xff, 0x79, 0x20, 0x30, 0x08, /* 0xef */
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0x00, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* 0xff */
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};
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struct vnt_threshold {
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u8 bb_pre_ed_rssi;
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u8 cr_201;
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u8 cr_206;
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};
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static const struct vnt_threshold al2230_vnt_threshold[] = {
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{0, 0x00, 0x30}, /* Max sensitivity */
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{68, 0x00, 0x36},
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{67, 0x00, 0x43},
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{66, 0x00, 0x51},
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{65, 0x00, 0x62},
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{64, 0x00, 0x79},
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{63, 0x00, 0x93},
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{62, 0x00, 0xb9},
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{61, 0x00, 0xe3},
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{60, 0x01, 0x18},
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{59, 0x01, 0x54},
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{58, 0x01, 0xa0},
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{57, 0x02, 0x20},
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{56, 0x02, 0xa0},
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{55, 0x03, 0x00},
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{53, 0x06, 0x00},
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{51, 0x09, 0x00},
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{49, 0x0e, 0x00},
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{47, 0x15, 0x00},
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{46, 0x1a, 0x00},
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{45, 0xff, 0x00}
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};
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static const struct vnt_threshold vt3226_vnt_threshold[] = {
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{0, 0x00, 0x24}, /* Max sensitivity */
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{68, 0x00, 0x2d},
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{67, 0x00, 0x36},
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{66, 0x00, 0x43},
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{65, 0x00, 0x52},
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{64, 0x00, 0x68},
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{63, 0x00, 0x80},
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{62, 0x00, 0x9c},
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{61, 0x00, 0xc0},
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{60, 0x00, 0xea},
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{59, 0x01, 0x30},
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{58, 0x01, 0x70},
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{57, 0x01, 0xb0},
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{56, 0x02, 0x30},
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{55, 0x02, 0xc0},
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{53, 0x04, 0x00},
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{51, 0x07, 0x00},
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{49, 0x0a, 0x00},
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{47, 0x11, 0x00},
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{45, 0x18, 0x00},
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{43, 0x26, 0x00},
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{42, 0x36, 0x00},
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{41, 0xff, 0x00}
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};
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static const struct vnt_threshold vt3342_vnt_threshold[] = {
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{0, 0x00, 0x38}, /* Max sensitivity */
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{66, 0x00, 0x43},
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{65, 0x00, 0x52},
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{64, 0x00, 0x68},
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{63, 0x00, 0x80},
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{62, 0x00, 0x9c},
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{61, 0x00, 0xc0},
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{60, 0x00, 0xea},
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{59, 0x01, 0x30},
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{58, 0x01, 0x70},
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{57, 0x01, 0xb0},
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{56, 0x02, 0x30},
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{55, 0x02, 0xc0},
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{53, 0x04, 0x00},
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{51, 0x07, 0x00},
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{49, 0x0a, 0x00},
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{47, 0x11, 0x00},
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{45, 0x18, 0x00},
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{43, 0x26, 0x00},
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{42, 0x36, 0x00},
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{41, 0xff, 0x00}
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};
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/*
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* Description: Set Antenna mode
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*
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* Parameters:
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* In:
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* priv - Device Structure
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* antenna_mode - Antenna Mode
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* Out:
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* none
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*
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* Return Value: none
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*
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*/
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int vnt_set_antenna_mode(struct vnt_private *priv, u8 antenna_mode)
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{
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switch (antenna_mode) {
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case ANT_TXA:
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case ANT_TXB:
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break;
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case ANT_RXA:
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priv->bb_rx_conf &= 0xFC;
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break;
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case ANT_RXB:
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priv->bb_rx_conf &= 0xFE;
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priv->bb_rx_conf |= 0x02;
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break;
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}
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return vnt_control_out(priv, MESSAGE_TYPE_SET_ANTMD,
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(u16)antenna_mode, 0, 0, NULL);
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}
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/*
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* Description: Set Antenna mode
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*
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* Parameters:
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* In:
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* pDevice - Device Structure
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* byAntennaMode - Antenna Mode
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* Out:
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* none
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*
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* Return Value: none
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*
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*/
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int vnt_vt3184_init(struct vnt_private *priv)
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{
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int ret;
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u16 length;
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u8 *addr = NULL;
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const u8 *c_addr;
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u8 data;
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ret = vnt_control_in(priv, MESSAGE_TYPE_READ, 0, MESSAGE_REQUEST_EEPROM,
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EEP_MAX_CONTEXT_SIZE, priv->eeprom);
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if (ret)
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goto end;
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priv->rf_type = priv->eeprom[EEP_OFS_RFTYPE];
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dev_dbg(&priv->usb->dev, "RF Type %d\n", priv->rf_type);
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if ((priv->rf_type == RF_AL2230) ||
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(priv->rf_type == RF_AL2230S) ||
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(priv->rf_type == RF_AIROHA7230)) {
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priv->bb_rx_conf = vnt_vt3184_al2230[10];
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length = sizeof(vnt_vt3184_al2230);
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addr = vnt_vt3184_al2230;
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if (priv->rf_type == RF_AIROHA7230)
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addr[0xd7] = 0x06;
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priv->bb_vga[0] = 0x1c;
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priv->bb_vga[1] = 0x10;
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priv->bb_vga[2] = 0x0;
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priv->bb_vga[3] = 0x0;
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} else if ((priv->rf_type == RF_VT3226) ||
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(priv->rf_type == RF_VT3226D0) ||
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(priv->rf_type == RF_VT3342A0)) {
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priv->bb_rx_conf = vnt_vt3184_vt3226d0[10];
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length = sizeof(vnt_vt3184_vt3226d0);
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c_addr = vnt_vt3184_vt3226d0;
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priv->bb_vga[0] = 0x20;
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priv->bb_vga[1] = 0x10;
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priv->bb_vga[2] = 0x0;
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priv->bb_vga[3] = 0x0;
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/* Fix VT3226 DFC system timing issue */
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ret = vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL2,
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SOFTPWRCTL_RFLEOPT);
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if (ret)
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goto end;
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} else {
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goto end;
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}
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if (addr)
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c_addr = addr;
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ret = vnt_control_out_blocks(priv, VNT_REG_BLOCK_SIZE,
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MESSAGE_REQUEST_BBREG, length, c_addr);
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if (ret)
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goto end;
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ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0,
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MESSAGE_REQUEST_BBAGC,
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sizeof(vnt_vt3184_agc), vnt_vt3184_agc);
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if (ret)
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goto end;
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if ((priv->rf_type == RF_VT3226) ||
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(priv->rf_type == RF_VT3342A0) ||
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(priv->rf_type == RF_VT3226D0)) {
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data = (priv->rf_type == RF_VT3226D0) ? 0x11 : 0x23;
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ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG,
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MAC_REG_ITRTMSET, data);
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if (ret)
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goto end;
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ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, BIT(0));
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if (ret)
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goto end;
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}
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ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x04, 0x7f);
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if (ret)
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goto end;
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ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01);
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if (ret)
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goto end;
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ret = vnt_rf_table_download(priv);
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if (ret)
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goto end;
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/* Fix for TX USB resets from vendors driver */
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ret = vnt_control_in(priv, MESSAGE_TYPE_READ, USB_REG4,
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MESSAGE_REQUEST_MEM, sizeof(data), &data);
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if (ret)
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goto end;
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data |= 0x2;
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ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, USB_REG4,
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MESSAGE_REQUEST_MEM, sizeof(data), &data);
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end:
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return ret;
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}
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/*
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* Description: Set ShortSlotTime mode
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*
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* Parameters:
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* In:
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* priv - Device Structure
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* Out:
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* none
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*
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* Return Value: none
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*
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*/
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int vnt_set_short_slot_time(struct vnt_private *priv)
|
|
{
|
|
int ret = 0;
|
|
u8 bb_vga = 0;
|
|
|
|
if (priv->short_slot_time)
|
|
priv->bb_rx_conf &= 0xdf;
|
|
else
|
|
priv->bb_rx_conf |= 0x20;
|
|
|
|
ret = vnt_control_in_u8(priv, MESSAGE_REQUEST_BBREG, 0xe7, &bb_vga);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (bb_vga == priv->bb_vga[0])
|
|
priv->bb_rx_conf |= 0x20;
|
|
|
|
return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0a,
|
|
priv->bb_rx_conf);
|
|
}
|
|
|
|
int vnt_set_vga_gain_offset(struct vnt_private *priv, u8 data)
|
|
{
|
|
int ret;
|
|
|
|
ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xE7, data);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* patch for 3253B0 Baseband with Cardbus module */
|
|
if (priv->short_slot_time)
|
|
priv->bb_rx_conf &= 0xdf; /* 1101 1111 */
|
|
else
|
|
priv->bb_rx_conf |= 0x20; /* 0010 0000 */
|
|
|
|
return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0a,
|
|
priv->bb_rx_conf);
|
|
}
|
|
|
|
/*
|
|
* Description: vnt_set_deep_sleep
|
|
*
|
|
* Parameters:
|
|
* In:
|
|
* priv - Device Structure
|
|
* Out:
|
|
* none
|
|
*
|
|
* Return Value: none
|
|
*
|
|
*/
|
|
int vnt_set_deep_sleep(struct vnt_private *priv)
|
|
{
|
|
int ret = 0;
|
|
|
|
/* CR12 */
|
|
ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0c, 0x17);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* CR13 */
|
|
return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0xB9);
|
|
}
|
|
|
|
int vnt_exit_deep_sleep(struct vnt_private *priv)
|
|
{
|
|
int ret = 0;
|
|
|
|
/* CR12 */
|
|
ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0c, 0x00);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* CR13 */
|
|
return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01);
|
|
}
|
|
|
|
int vnt_update_pre_ed_threshold(struct vnt_private *priv, int scanning)
|
|
{
|
|
const struct vnt_threshold *threshold = NULL;
|
|
u8 length;
|
|
u8 cr_201, cr_206;
|
|
u8 ed_inx;
|
|
int ret;
|
|
|
|
switch (priv->rf_type) {
|
|
case RF_AL2230:
|
|
case RF_AL2230S:
|
|
case RF_AIROHA7230:
|
|
threshold = al2230_vnt_threshold;
|
|
length = ARRAY_SIZE(al2230_vnt_threshold);
|
|
break;
|
|
|
|
case RF_VT3226:
|
|
case RF_VT3226D0:
|
|
threshold = vt3226_vnt_threshold;
|
|
length = ARRAY_SIZE(vt3226_vnt_threshold);
|
|
break;
|
|
|
|
case RF_VT3342A0:
|
|
threshold = vt3342_vnt_threshold;
|
|
length = ARRAY_SIZE(vt3342_vnt_threshold);
|
|
break;
|
|
}
|
|
|
|
if (!threshold)
|
|
return -EINVAL;
|
|
|
|
for (ed_inx = scanning ? 0 : length - 1; ed_inx > 0; ed_inx--) {
|
|
if (priv->bb_pre_ed_rssi <= threshold[ed_inx].bb_pre_ed_rssi)
|
|
break;
|
|
}
|
|
|
|
cr_201 = threshold[ed_inx].cr_201;
|
|
cr_206 = threshold[ed_inx].cr_206;
|
|
|
|
if (ed_inx == priv->bb_pre_ed_index && !scanning)
|
|
return 0;
|
|
|
|
priv->bb_pre_ed_index = ed_inx;
|
|
|
|
dev_dbg(&priv->usb->dev, "%s bb_pre_ed_rssi %d\n",
|
|
__func__, priv->bb_pre_ed_rssi);
|
|
|
|
ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xc9, cr_201);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xce, cr_206);
|
|
}
|
|
|