xref: /freebsd/sys/dev/ath/ath_hal/ah_eeprom_v1.h (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
1 /*-
2  * SPDX-License-Identifier: ISC
3  *
4  * Copyright (c) 2002-2008 Sam Leffler, Errno Consulting
5  * Copyright (c) 2002-2008 Atheros Communications, Inc.
6  *
7  * Permission to use, copy, modify, and/or distribute this software for any
8  * purpose with or without fee is hereby granted, provided that the above
9  * copyright notice and this permission notice appear in all copies.
10  *
11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18  */
19 #ifndef _ATH_AH_EEPROM_V1_H_
20 #define _ATH_AH_EEPROM_V1_H_
21 
22 #include "ah_eeprom.h"
23 
24 /*
25  * EEPROM defines for Version 1 Crete EEPROM.
26  *
27  * The EEPROM is segmented into three sections:
28  *
29  *    PCI/Cardbus default configuration settings
30  *    Cardbus CIS tuples and vendor-specific data
31  *    Atheros-specific data
32  *
33  * EEPROM entries are read 32-bits at a time through the PCI bus
34  * interface but are all 16-bit values.
35  *
36  * Access to the Atheros-specific data is controlled by protection
37  * bits and the data is checksum'd.  The driver reads the Atheros
38  * data from the EEPROM at attach and caches it in its private state.
39  * This data includes the local regulatory domain, channel calibration
40  * settings, and phy-related configuration settings.
41  */
42 #define	AR_EEPROM_MAC(i)	(0x1f-(i))/* MAC address word */
43 #define	AR_EEPROM_MAGIC		0x3d	/* magic number */
44 #define AR_EEPROM_PROTECT	0x3f	/* Atheros segment protect register */
45 #define	AR_EEPROM_PROTOTECT_WP_128_191	0x80
46 #define AR_EEPROM_REG_DOMAIN	0xbf	/* Current regulatory domain register */
47 #define AR_EEPROM_ATHEROS_BASE	0xc0	/* Base of Atheros-specific data */
48 #define AR_EEPROM_ATHEROS_MAX	64	/* 64x2=128 bytes of EEPROM settings */
49 #define	AR_EEPROM_ATHEROS(n)	(AR_EEPROM_ATHEROS_BASE+(n))
50 #define	AR_EEPROM_VERSION	AR_EEPROM_ATHEROS(1)
51 #define AR_EEPROM_ATHEROS_TP_SETTINGS	0x09	/* Transmit power settings */
52 #define AR_REG_DOMAINS_MAX	4	/* # of Regulatory Domains */
53 #define AR_CHANNELS_MAX		5	/* # of Channel calibration groups */
54 #define AR_TP_SETTINGS_SIZE	11	/* # locations/Channel group */
55 #define AR_TP_SCALING_ENTRIES	11	/* # entries in transmit power dBm->pcdac */
56 
57 /*
58  * NB: we store the rfsilent select+polarity data packed
59  *     with the encoding used in later parts so values
60  *     returned to applications are consistent.
61  */
62 #define AR_EEPROM_RFSILENT_GPIO_SEL	0x001c
63 #define AR_EEPROM_RFSILENT_GPIO_SEL_S	2
64 #define AR_EEPROM_RFSILENT_POLARITY	0x0002
65 #define AR_EEPROM_RFSILENT_POLARITY_S	1
66 
67 #define AR_I2DBM(x)	((uint8_t)((x * 2) + 3))
68 
69 /*
70  * Transmit power and channel calibration settings.
71  */
72 struct tpcMap {
73 	uint8_t		pcdac[AR_TP_SCALING_ENTRIES];
74 	uint8_t		gainF[AR_TP_SCALING_ENTRIES];
75 	uint8_t		rate36;
76 	uint8_t		rate48;
77 	uint8_t		rate54;
78 	uint8_t		regdmn[AR_REG_DOMAINS_MAX];
79 };
80 
81 /*
82  * Information retrieved from EEPROM.
83  */
84 typedef struct {
85 	uint16_t	ee_version;		/* Version field */
86 	uint16_t	ee_protect;		/* EEPROM protect field */
87 	uint16_t	ee_antenna;		/* Antenna Settings */
88 	uint16_t	ee_biasCurrents;	/* OB, DB */
89 	uint8_t		ee_thresh62;		/* thresh62 */
90 	uint8_t		ee_xlnaOn;		/* External LNA timing */
91 	uint8_t		ee_xpaOff;		/* Extern output stage timing */
92 	uint8_t		ee_xpaOn;		/* Extern output stage timing */
93 	uint8_t		ee_rfKill;		/* Single low bit signalling if RF Kill is implemented */
94 	uint8_t		ee_devType;		/* Type: PCI, miniPCI, CB */
95 	uint8_t		ee_regDomain[AR_REG_DOMAINS_MAX];
96 						/* calibrated reg domains */
97 	struct tpcMap	ee_tpc[AR_CHANNELS_MAX];
98 } HAL_EEPROM_v1;
99 #endif /* _ATH_AH_EEPROM_V1_H_ */
100