xref: /linux/drivers/net/wireless/broadcom/b43/phy_g.h (revision 498495dba268b20e8eadd7fe93c140c68b6cc9d2)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef LINUX_B43_PHY_G_H_
3 #define LINUX_B43_PHY_G_H_
4 
5 /* OFDM PHY registers are defined in the A-PHY header. */
6 #include "phy_a.h"
7 
8 /* CCK (B) PHY Registers */
9 #define B43_PHY_VERSION_CCK		B43_PHY_CCK(0x00)	/* Versioning register for B-PHY */
10 #define B43_PHY_CCKBBANDCFG		B43_PHY_CCK(0x01)	/* Contains antenna 0/1 control bit */
11 #define B43_PHY_PGACTL			B43_PHY_CCK(0x15)	/* PGA control */
12 #define  B43_PHY_PGACTL_LPF		0x1000	/* Low pass filter (?) */
13 #define  B43_PHY_PGACTL_LOWBANDW	0x0040	/* Low bandwidth flag */
14 #define  B43_PHY_PGACTL_UNKNOWN		0xEFA0
15 #define B43_PHY_FBCTL1			B43_PHY_CCK(0x18)	/* Frequency bandwidth control 1 */
16 #define B43_PHY_ITSSI			B43_PHY_CCK(0x29)	/* Idle TSSI */
17 #define B43_PHY_LO_LEAKAGE		B43_PHY_CCK(0x2D)	/* Measured LO leakage */
18 #define B43_PHY_ENERGY			B43_PHY_CCK(0x33)	/* Energy */
19 #define B43_PHY_SYNCCTL			B43_PHY_CCK(0x35)
20 #define B43_PHY_FBCTL2			B43_PHY_CCK(0x38)	/* Frequency bandwidth control 2 */
21 #define B43_PHY_DACCTL			B43_PHY_CCK(0x60)	/* DAC control */
22 #define B43_PHY_RCCALOVER		B43_PHY_CCK(0x78)	/* RC calibration override */
23 
24 /* Extended G-PHY Registers */
25 #define B43_PHY_CLASSCTL		B43_PHY_EXTG(0x02)	/* Classify control */
26 #define B43_PHY_GTABCTL			B43_PHY_EXTG(0x03)	/* G-PHY table control (see below) */
27 #define  B43_PHY_GTABOFF		0x03FF	/* G-PHY table offset (see below) */
28 #define  B43_PHY_GTABNR			0xFC00	/* G-PHY table number (see below) */
29 #define  B43_PHY_GTABNR_SHIFT		10
30 #define B43_PHY_GTABDATA		B43_PHY_EXTG(0x04)	/* G-PHY table data */
31 #define B43_PHY_LO_MASK			B43_PHY_EXTG(0x0F)	/* Local Oscillator control mask */
32 #define B43_PHY_LO_CTL			B43_PHY_EXTG(0x10)	/* Local Oscillator control */
33 #define B43_PHY_RFOVER			B43_PHY_EXTG(0x11)	/* RF override */
34 #define B43_PHY_RFOVERVAL		B43_PHY_EXTG(0x12)	/* RF override value */
35 #define  B43_PHY_RFOVERVAL_EXTLNA	0x8000
36 #define  B43_PHY_RFOVERVAL_LNA		0x7000
37 #define  B43_PHY_RFOVERVAL_LNA_SHIFT	12
38 #define  B43_PHY_RFOVERVAL_PGA		0x0F00
39 #define  B43_PHY_RFOVERVAL_PGA_SHIFT	8
40 #define  B43_PHY_RFOVERVAL_UNK		0x0010	/* Unknown, always set. */
41 #define  B43_PHY_RFOVERVAL_TRSWRX	0x00E0
42 #define  B43_PHY_RFOVERVAL_BW		0x0003	/* Bandwidth flags */
43 #define   B43_PHY_RFOVERVAL_BW_LPF	0x0001	/* Low Pass Filter */
44 #define   B43_PHY_RFOVERVAL_BW_LBW	0x0002	/* Low Bandwidth (when set), high when unset */
45 #define B43_PHY_ANALOGOVER		B43_PHY_EXTG(0x14)	/* Analog override */
46 #define B43_PHY_ANALOGOVERVAL		B43_PHY_EXTG(0x15)	/* Analog override value */
47 
48 
49 /*** G-PHY table numbers */
50 #define B43_GTAB(number, offset)	(((number) << B43_PHY_GTABNR_SHIFT) | (offset))
51 #define B43_GTAB_NRSSI			B43_GTAB(0x00, 0)
52 #define B43_GTAB_TRFEMW			B43_GTAB(0x0C, 0x120)
53 #define B43_GTAB_ORIGTR			B43_GTAB(0x2E, 0x298)
54 
55 u16 b43_gtab_read(struct b43_wldev *dev, u16 table, u16 offset);
56 void b43_gtab_write(struct b43_wldev *dev, u16 table, u16 offset, u16 value);
57 
58 
59 /* Returns the boolean whether "TX Magnification" is enabled. */
60 #define has_tx_magnification(phy) \
61 	(((phy)->rev >= 2) &&			\
62 	 ((phy)->radio_ver == 0x2050) &&	\
63 	 ((phy)->radio_rev == 8))
64 /* Card uses the loopback gain stuff */
65 #define has_loopback_gain(phy) \
66 	(((phy)->rev > 1) || ((phy)->gmode))
67 
68 /* Radio Attenuation (RF Attenuation) */
69 struct b43_rfatt {
70 	u8 att;			/* Attenuation value */
71 	bool with_padmix;	/* Flag, PAD Mixer enabled. */
72 };
73 struct b43_rfatt_list {
74 	/* Attenuation values list */
75 	const struct b43_rfatt *list;
76 	u8 len;
77 	/* Minimum/Maximum attenuation values */
78 	u8 min_val;
79 	u8 max_val;
80 };
81 
82 /* Returns true, if the values are the same. */
b43_compare_rfatt(const struct b43_rfatt * a,const struct b43_rfatt * b)83 static inline bool b43_compare_rfatt(const struct b43_rfatt *a,
84 				     const struct b43_rfatt *b)
85 {
86 	return ((a->att == b->att) &&
87 		(a->with_padmix == b->with_padmix));
88 }
89 
90 /* Baseband Attenuation */
91 struct b43_bbatt {
92 	u8 att;			/* Attenuation value */
93 };
94 struct b43_bbatt_list {
95 	/* Attenuation values list */
96 	const struct b43_bbatt *list;
97 	u8 len;
98 	/* Minimum/Maximum attenuation values */
99 	u8 min_val;
100 	u8 max_val;
101 };
102 
103 /* Returns true, if the values are the same. */
b43_compare_bbatt(const struct b43_bbatt * a,const struct b43_bbatt * b)104 static inline bool b43_compare_bbatt(const struct b43_bbatt *a,
105 				     const struct b43_bbatt *b)
106 {
107 	return (a->att == b->att);
108 }
109 
110 /* tx_control bits. */
111 #define B43_TXCTL_PA3DB		0x40	/* PA Gain 3dB */
112 #define B43_TXCTL_PA2DB		0x20	/* PA Gain 2dB */
113 #define B43_TXCTL_TXMIX		0x10	/* TX Mixer Gain */
114 
115 struct b43_txpower_lo_control;
116 
117 struct b43_phy_g {
118 	/* ACI (adjacent channel interference) flags. */
119 	bool aci_enable;
120 	bool aci_wlan_automatic;
121 	bool aci_hw_rssi;
122 
123 	/* Radio switched on/off */
124 	bool radio_on;
125 	struct {
126 		/* Values saved when turning the radio off.
127 		 * They are needed when turning it on again. */
128 		bool valid;
129 		u16 rfover;
130 		u16 rfoverval;
131 	} radio_off_context;
132 
133 	u16 minlowsig[2];
134 	u16 minlowsigpos[2];
135 
136 	/* Pointer to the table used to convert a
137 	 * TSSI value to dBm-Q5.2 */
138 	const s8 *tssi2dbm;
139 	/* tssi2dbm is kmalloc()ed. Only used for free()ing. */
140 	bool dyn_tssi_tbl;
141 	/* Target idle TSSI */
142 	int tgt_idle_tssi;
143 	/* Current idle TSSI */
144 	int cur_idle_tssi;
145 	/* The current average TSSI. */
146 	u8 average_tssi;
147 	/* Current TX power level attenuation control values */
148 	struct b43_bbatt bbatt;
149 	struct b43_rfatt rfatt;
150 	u8 tx_control;		/* B43_TXCTL_XXX */
151 	/* The calculated attenuation deltas that are used later
152 	 * when adjusting the actual power output. */
153 	int bbatt_delta;
154 	int rfatt_delta;
155 
156 	/* LocalOscillator control values. */
157 	struct b43_txpower_lo_control *lo_control;
158 	/* Values from b43_calc_loopback_gain() */
159 	s16 max_lb_gain;	/* Maximum Loopback gain in hdB */
160 	s16 trsw_rx_gain;	/* TRSW RX gain in hdB */
161 	s16 lna_lod_gain;	/* LNA lod */
162 	s16 lna_gain;		/* LNA */
163 	s16 pga_gain;		/* PGA */
164 
165 	/* Current Interference Mitigation mode */
166 	int interfmode;
167 	/* Stack of saved values from the Interference Mitigation code.
168 	 * Each value in the stack is laid out as follows:
169 	 * bit 0-11:  offset
170 	 * bit 12-15: register ID
171 	 * bit 16-32: value
172 	 * register ID is: 0x1 PHY, 0x2 Radio, 0x3 ILT
173 	 */
174 #define B43_INTERFSTACK_SIZE	26
175 	u32 interfstack[B43_INTERFSTACK_SIZE];	//FIXME: use a data structure
176 
177 	/* Saved values from the NRSSI Slope calculation */
178 	s16 nrssi[2];
179 	s32 nrssislope;
180 	/* In memory nrssi lookup table. */
181 	s8 nrssi_lt[64];
182 
183 	u16 lofcal;
184 
185 	u16 initval;		//FIXME rename?
186 
187 	/* The device does address auto increment for the OFDM tables.
188 	 * We cache the previously used address here and omit the address
189 	 * write on the next table access, if possible. */
190 	u16 ofdmtab_addr; /* The address currently set in hardware. */
191 	enum { /* The last data flow direction. */
192 		B43_OFDMTAB_DIRECTION_UNKNOWN = 0,
193 		B43_OFDMTAB_DIRECTION_READ,
194 		B43_OFDMTAB_DIRECTION_WRITE,
195 	} ofdmtab_addr_direction;
196 };
197 
198 void b43_gphy_set_baseband_attenuation(struct b43_wldev *dev,
199 				       u16 baseband_attenuation);
200 void b43_gphy_channel_switch(struct b43_wldev *dev,
201 			     unsigned int channel,
202 			     bool synthetic_pu_workaround);
203 u8 * b43_generate_dyn_tssi2dbm_tab(struct b43_wldev *dev,
204 				   s16 pab0, s16 pab1, s16 pab2);
205 
206 struct b43_phy_operations;
207 extern const struct b43_phy_operations b43_phyops_g;
208 
209 #endif /* LINUX_B43_PHY_G_H_ */
210