This file is indexed.

/lib/firmware/carl9170fw/carlfw/usb/fifo.c is in linux-firmware 1.127.24.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
/*
 * carl9170 firmware - used by the ar9170 wireless device
 *
 * Copyright (c) 2000-2005  ZyDAS Technology Corporation
 * Copyright (c) 2007-2009 Atheros Communications, Inc.
 * Copyright	2009	Johannes Berg <johannes@sipsolutions.net>
 * Copyright 2009-2011	Christian Lamparter <chunkeey@googlemail.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#include "carl9170.h"
#include "printf.h"
#include "rom.h"
#include "usb_fifo.h"

/* TODO / TOTEST */
#ifdef CONFIG_CARL9170FW_USB_MODESWITCH
static inline void usb_ep_map(const uint8_t ep, const uint8_t map)
{
	setb(AR9170_USB_REG_EP_MAP + (ep - 1), map);
}

static inline void usb_fifo_map(const uint8_t fifo, const uint8_t map)
{
	setb(AR9170_USB_REG_FIFO_MAP + (fifo - 1), map);
}

static inline void usb_fifo_config(const uint8_t fifo, const uint8_t cfg)
{
	setb(AR9170_USB_REG_FIFO_CONFIG + (fifo - 1), cfg);
}

static inline void usb_ep_packet_size_hi(const uint8_t ep, const uint8_t dir,
			     const uint16_t size)
{
	setb(AR9170_USB_REG_EP_IN_MAX_SIZE_HIGH + (((dir * 0x20) + ep) << 1),
	     (size >> 8) & 0xf);
}

static inline void usb_ep_packet_size_lo(const uint8_t ep, const uint8_t dir,
			    const uint16_t size)
{
	setb(AR9170_USB_REG_EP_IN_MAX_SIZE_LOW + (((dir * 0x20) + ep) << 1),
	     size & 0xff);
}

static void usb_ep_in_highbandset(const uint8_t ep, const uint8_t dir,
				const uint16_t size)
{
	andb(AR9170_USB_REG_EP_IN_MAX_SIZE_HIGH + (ep << 1), ~(BIT(6) | BIT(5)));

	switch (dir) {
	case DIRECTION_IN:
		setb(AR9170_USB_REG_EP_IN_MAX_SIZE_HIGH + (ep << 1),
		     ((size >> 11) + 1) << 5);
		break;
	case DIRECTION_OUT:
	default:
		break;
	}
}

/*
 *      vUsbFIFO_EPxCfg_HS(void)
 *      Description:
 *          1. Configure the FIFO and EPx map
 *      input: none
 *      output: none
 */

void usb_init_highspeed_fifo_cfg(void)
{
	int i;

	/* EP 1 */
	usb_ep_map(1, HS_C1_I0_A0_EP1_MAP);
	usb_fifo_map(HS_C1_I0_A0_EP1_FIFO_START, HS_C1_I0_A0_EP1_FIFO_MAP);
	usb_fifo_config(HS_C1_I0_A0_EP1_FIFO_START, HS_C1_I0_A0_EP1_FIFO_CONFIG);

	for (i = HS_C1_I0_A0_EP1_FIFO_START + 1;
	     i < HS_C1_I0_A0_EP1_FIFO_START + HS_C1_I0_A0_EP1_FIFO_NO; i++) {
		usb_fifo_config(i, (HS_C1_I0_A0_EP1_FIFO_CONFIG & (~BIT(7))));
	}

	usb_ep_packet_size_hi(1, HS_C1_I0_A0_EP1_DIRECTION, (HS_C1_I0_A0_EP1_MAX_PACKET & 0x7ff));
	usb_ep_packet_size_lo(1, HS_C1_I0_A0_EP1_DIRECTION, (HS_C1_I0_A0_EP1_MAX_PACKET & 0x7ff));
	usb_ep_in_highbandset(1, HS_C1_I0_A0_EP1_DIRECTION, HS_C1_I0_A0_EP1_MAX_PACKET);

	/* EP 2 */
	usb_ep_map(2, HS_C1_I0_A0_EP2_MAP);
	usb_fifo_map(HS_C1_I0_A0_EP2_FIFO_START, HS_C1_I0_A0_EP2_FIFO_MAP);
	usb_fifo_config(HS_C1_I0_A0_EP2_FIFO_START, HS_C1_I0_A0_EP2_FIFO_CONFIG);

	for (i = HS_C1_I0_A0_EP2_FIFO_START + 1;
	     i < HS_C1_I0_A0_EP2_FIFO_START + HS_C1_I0_A0_EP2_FIFO_NO; i++) {
		usb_fifo_config(i, (HS_C1_I0_A0_EP2_FIFO_CONFIG & (~BIT(7))));
	}

	usb_ep_packet_size_hi(2, HS_C1_I0_A0_EP2_DIRECTION, (HS_C1_I0_A0_EP2_MAX_PACKET & 0x7ff));
	usb_ep_packet_size_lo(2, HS_C1_I0_A0_EP2_DIRECTION, (HS_C1_I0_A0_EP2_MAX_PACKET & 0x7ff));
	usb_ep_in_highbandset(2, HS_C1_I0_A0_EP2_DIRECTION, HS_C1_I0_A0_EP2_MAX_PACKET);

	/* EP 3 */
	usb_ep_map(3, HS_C1_I0_A0_EP3_MAP);
	usb_fifo_map(HS_C1_I0_A0_EP3_FIFO_START, HS_C1_I0_A0_EP3_FIFO_MAP);
	usb_fifo_config(HS_C1_I0_A0_EP3_FIFO_START, HS_C1_I0_A0_EP3_FIFO_CONFIG);

	for (i = HS_C1_I0_A0_EP3_FIFO_START + 1;
	     i < HS_C1_I0_A0_EP3_FIFO_START + HS_C1_I0_A0_EP3_FIFO_NO; i++) {
		usb_fifo_config(i, (HS_C1_I0_A0_EP3_FIFO_CONFIG & (~BIT(7))));
	}

	usb_ep_packet_size_hi(3, HS_C1_I0_A0_EP3_DIRECTION, (HS_C1_I0_A0_EP3_MAX_PACKET & 0x7ff));
	usb_ep_packet_size_lo(3, HS_C1_I0_A0_EP3_DIRECTION, (HS_C1_I0_A0_EP3_MAX_PACKET & 0x7ff));
	usb_ep_in_highbandset(3, HS_C1_I0_A0_EP3_DIRECTION, HS_C1_I0_A0_EP3_MAX_PACKET);

	/* EP 4 */
	usb_ep_map(4, HS_C1_I0_A0_EP4_MAP);
	usb_fifo_map(HS_C1_I0_A0_EP4_FIFO_START, HS_C1_I0_A0_EP4_FIFO_MAP);
	usb_fifo_config(HS_C1_I0_A0_EP4_FIFO_START, HS_C1_I0_A0_EP4_FIFO_CONFIG);

	for (i = HS_C1_I0_A0_EP4_FIFO_START + 1;
	     i < HS_C1_I0_A0_EP4_FIFO_START + HS_C1_I0_A0_EP4_FIFO_NO; i++) {
		usb_fifo_config(i, (HS_C1_I0_A0_EP4_FIFO_CONFIG & (~BIT(7))));
	}

	usb_ep_packet_size_hi(4, HS_C1_I0_A0_EP4_DIRECTION, (HS_C1_I0_A0_EP4_MAX_PACKET & 0x7ff));
	usb_ep_packet_size_lo(4, HS_C1_I0_A0_EP4_DIRECTION, (HS_C1_I0_A0_EP4_MAX_PACKET & 0x7ff));
	usb_ep_in_highbandset(4, HS_C1_I0_A0_EP4_DIRECTION, HS_C1_I0_A0_EP4_MAX_PACKET);
}

void usb_init_fullspeed_fifo_cfg(void)
{
	int i;

	/* EP 1 */
	usb_ep_map(1, FS_C1_I0_A0_EP1_MAP);
	usb_fifo_map(FS_C1_I0_A0_EP1_FIFO_START, FS_C1_I0_A0_EP1_FIFO_MAP);
	usb_fifo_config(FS_C1_I0_A0_EP1_FIFO_START, FS_C1_I0_A0_EP1_FIFO_CONFIG);

	for (i = FS_C1_I0_A0_EP1_FIFO_START + 1;
	     i < FS_C1_I0_A0_EP1_FIFO_START + FS_C1_I0_A0_EP1_FIFO_NO; i++) {
		usb_fifo_config(i, (FS_C1_I0_A0_EP1_FIFO_CONFIG & (~BIT(7))));
	}

	usb_ep_packet_size_hi(1, FS_C1_I0_A0_EP1_DIRECTION, (FS_C1_I0_A0_EP1_MAX_PACKET & 0x7ff));
	usb_ep_packet_size_lo(1, FS_C1_I0_A0_EP1_DIRECTION, (FS_C1_I0_A0_EP1_MAX_PACKET & 0x7ff));
	/* ``.JWEI 2003/04/29 */
	usb_ep_in_highbandset(1, FS_C1_I0_A0_EP1_DIRECTION, FS_C1_I0_A0_EP1_MAX_PACKET);

	/* EP 2 */
	usb_ep_map(2, FS_C1_I0_A0_EP2_MAP);
	usb_fifo_map(FS_C1_I0_A0_EP2_FIFO_START, FS_C1_I0_A0_EP2_FIFO_MAP);
	usb_fifo_config(FS_C1_I0_A0_EP2_FIFO_START, FS_C1_I0_A0_EP2_FIFO_CONFIG);

	for (i = FS_C1_I0_A0_EP2_FIFO_START + 1;
	     i < FS_C1_I0_A0_EP2_FIFO_START + FS_C1_I0_A0_EP2_FIFO_NO; i++) {
		usb_fifo_config(i, (FS_C1_I0_A0_EP2_FIFO_CONFIG & (~BIT(7))));
	}

	usb_ep_packet_size_hi(2, FS_C1_I0_A0_EP2_DIRECTION, (FS_C1_I0_A0_EP2_MAX_PACKET & 0x7ff));
	usb_ep_packet_size_lo(2, FS_C1_I0_A0_EP2_DIRECTION, (FS_C1_I0_A0_EP2_MAX_PACKET & 0x7ff));
	usb_ep_in_highbandset(2, FS_C1_I0_A0_EP2_DIRECTION, FS_C1_I0_A0_EP2_MAX_PACKET);

	/* EP 3 */
	usb_ep_map(3, FS_C1_I0_A0_EP3_MAP);
	usb_fifo_map(FS_C1_I0_A0_EP3_FIFO_START, FS_C1_I0_A0_EP3_FIFO_MAP);
	usb_fifo_config(FS_C1_I0_A0_EP3_FIFO_START, FS_C1_I0_A0_EP3_FIFO_CONFIG);

	for (i = FS_C1_I0_A0_EP3_FIFO_START + 1;
	     i < FS_C1_I0_A0_EP3_FIFO_START + FS_C1_I0_A0_EP3_FIFO_NO; i++) {
		usb_fifo_config(i, (FS_C1_I0_A0_EP3_FIFO_CONFIG & (~BIT(7))));
	}

	usb_ep_packet_size_hi(3, FS_C1_I0_A0_EP3_DIRECTION, (FS_C1_I0_A0_EP3_MAX_PACKET & 0x7ff));
	usb_ep_packet_size_lo(3, FS_C1_I0_A0_EP3_DIRECTION, (FS_C1_I0_A0_EP3_MAX_PACKET & 0x7ff));
	usb_ep_in_highbandset(3, FS_C1_I0_A0_EP3_DIRECTION, FS_C1_I0_A0_EP3_MAX_PACKET);

	/* EP 4 */
	usb_ep_map(4, FS_C1_I0_A0_EP4_MAP);
	usb_fifo_map(FS_C1_I0_A0_EP4_FIFO_START, FS_C1_I0_A0_EP4_FIFO_MAP);
	usb_fifo_config(FS_C1_I0_A0_EP4_FIFO_START, FS_C1_I0_A0_EP4_FIFO_CONFIG);

	for (i = FS_C1_I0_A0_EP4_FIFO_START + 1;
	     i < FS_C1_I0_A0_EP4_FIFO_START + FS_C1_I0_A0_EP4_FIFO_NO; i++) {
		usb_fifo_config(i, (FS_C1_I0_A0_EP4_FIFO_CONFIG & (~BIT(7))));
	}

	usb_ep_packet_size_hi(4, FS_C1_I0_A0_EP4_DIRECTION, (FS_C1_I0_A0_EP4_MAX_PACKET & 0x7ff));
	usb_ep_packet_size_lo(4, FS_C1_I0_A0_EP4_DIRECTION, (FS_C1_I0_A0_EP4_MAX_PACKET & 0x7ff));
	usb_ep_in_highbandset(4, FS_C1_I0_A0_EP4_DIRECTION, FS_C1_I0_A0_EP4_MAX_PACKET);
}
#endif /* CONFIG_CARL9170FW_USB_MODESWITCH */