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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * ddbridge-mci.h: Digital Devices micro code interface
4 *
5 * Copyright (C) 2017-2018 Digital Devices GmbH
6 * Marcus Metzler <mocm@metzlerbros.de>
7 * Ralph Metzler <rjkm@metzlerbros.de>
8 */
9
10#ifndef _DDBRIDGE_MCI_H_
11#define _DDBRIDGE_MCI_H_
12
13#define MCI_DEMOD_MAX 8
14#define MCI_TUNER_MAX 4
15#define DEMOD_UNUSED (0xFF)
16
17#define MCI_CONTROL (0x500)
18#define MCI_COMMAND (0x600)
19#define MCI_RESULT (0x680)
20
21#define MCI_COMMAND_SIZE (0x80)
22#define MCI_RESULT_SIZE (0x80)
23
24#define MCI_CONTROL_START_COMMAND (0x00000001)
25#define MCI_CONTROL_ENABLE_DONE_INTERRUPT (0x00000002)
26#define MCI_CONTROL_RESET (0x00008000)
27#define MCI_CONTROL_READY (0x00010000)
28
29#define SX8_TSCONFIG (0x280)
30
31#define SX8_TSCONFIG_MODE_MASK (0x00000003)
32#define SX8_TSCONFIG_MODE_OFF (0x00000000)
33#define SX8_TSCONFIG_MODE_NORMAL (0x00000001)
34#define SX8_TSCONFIG_MODE_IQ (0x00000003)
35
36/*
37 * IQMode is only available on MaxSX8 on a single tuner
38 *
39 * IQ_MODE_SAMPLES
40 * sampling rate is 1550/24 MHz (64.583 MHz)
41 * channel agc is frozen, to allow stitching the FFT results together
42 *
43 * IQ_MODE_VTM
44 * sampling rate is the supplied symbolrate
45 * channel agc is active
46 *
47 * in both cases down sampling is done with a RRC Filter (currently fixed to
48 * alpha = 0.05) which causes some (ca 5%) aliasing at the edges from
49 * outside the spectrum
50 */
51
52#define SX8_TSCONFIG_TSHEADER (0x00000004)
53#define SX8_TSCONFIG_BURST (0x00000008)
54
55#define SX8_TSCONFIG_BURSTSIZE_MASK (0x00000030)
56#define SX8_TSCONFIG_BURSTSIZE_2K (0x00000000)
57#define SX8_TSCONFIG_BURSTSIZE_4K (0x00000010)
58#define SX8_TSCONFIG_BURSTSIZE_8K (0x00000020)
59#define SX8_TSCONFIG_BURSTSIZE_16K (0x00000030)
60
61#define SX8_DEMOD_STOPPED (0)
62#define SX8_DEMOD_IQ_MODE (1)
63#define SX8_DEMOD_WAIT_SIGNAL (2)
64#define SX8_DEMOD_WAIT_MATYPE (3)
65#define SX8_DEMOD_TIMEOUT (14)
66#define SX8_DEMOD_LOCKED (15)
67
68#define MCI_CMD_STOP (0x01)
69#define MCI_CMD_GETSTATUS (0x02)
70#define MCI_CMD_GETSIGNALINFO (0x03)
71#define MCI_CMD_RFPOWER (0x04)
72
73#define MCI_CMD_SEARCH_DVBS (0x10)
74
75#define MCI_CMD_GET_IQSYMBOL (0x30)
76
77#define SX8_CMD_INPUT_ENABLE (0x40)
78#define SX8_CMD_INPUT_DISABLE (0x41)
79#define SX8_CMD_START_IQ (0x42)
80#define SX8_CMD_STOP_IQ (0x43)
81#define SX8_CMD_ENABLE_IQOUTPUT (0x44)
82#define SX8_CMD_DISABLE_IQOUTPUT (0x45)
83
84#define MCI_STATUS_OK (0x00)
85#define MCI_STATUS_UNSUPPORTED (0x80)
86#define MCI_STATUS_RETRY (0xFD)
87#define MCI_STATUS_NOT_READY (0xFE)
88#define MCI_STATUS_ERROR (0xFF)
89
90#define MCI_SUCCESS(status) ((status & MCI_STATUS_UNSUPPORTED) == 0)
91
92struct mci_command {
93 union {
94 u32 command_word;
95 struct {
96 u8 command;
97 u8 tuner;
98 u8 demod;
99 u8 output;
100 };
101 };
102 union {
103 u32 params[31];
104 struct {
105 /*
106 * Bit 0: DVB-S Enabled
107 * Bit 1: DVB-S2 Enabled
108 * Bit 7: InputStreamID
109 */
110 u8 flags;
111 /*
112 * Bit 0: QPSK,
113 * Bit 1: 8PSK/8APSK
114 * Bit 2: 16APSK
115 * Bit 3: 32APSK
116 * Bit 4: 64APSK
117 * Bit 5: 128APSK
118 * Bit 6: 256APSK
119 */
120 u8 s2_modulation_mask;
121 u8 rsvd1;
122 u8 retry;
123 u32 frequency;
124 u32 symbol_rate;
125 u8 input_stream_id;
126 u8 rsvd2[3];
127 u32 scrambling_sequence_index;
128 u32 frequency_range;
129 } dvbs2_search;
130
131 struct {
132 u8 tap;
133 u8 rsvd;
134 u16 point;
135 } get_iq_symbol;
136
137 struct {
138 /*
139 * Bit 0: 0=VTM/1=SCAN
140 * Bit 1: Set Gain
141 */
142 u8 flags;
143 u8 roll_off;
144 u8 rsvd1;
145 u8 rsvd2;
146 u32 frequency;
147 u32 symbol_rate; /* Only in VTM mode */
148 u16 gain;
149 } sx8_start_iq;
150
151 struct {
152 /*
153 * Bit 1:0 = STVVGLNA Gain.
154 * 0 = AGC, 1 = 0dB, 2 = Minimum, 3 = Maximum
155 */
156 u8 flags;
157 } sx8_input_enable;
158 };
159};
160
161struct mci_result {
162 union {
163 u32 status_word;
164 struct {
165 u8 status;
166 u8 mode;
167 u16 time;
168 };
169 };
170 union {
171 u32 result[27];
172 struct {
173 /* 1 = DVB-S, 2 = DVB-S2X */
174 u8 standard;
175 /* puncture rate for DVB-S */
176 u8 pls_code;
177 /* 2-0: rolloff */
178 u8 roll_off;
179 u8 rsvd;
180 /* actual frequency in Hz */
181 u32 frequency;
182 /* actual symbolrate in Hz */
183 u32 symbol_rate;
184 /* channel power in dBm x 100 */
185 s16 channel_power;
186 /* band power in dBm x 100 */
187 s16 band_power;
188 /*
189 * SNR in dB x 100
190 * Note: negative values are valid in DVB-S2
191 */
192 s16 signal_to_noise;
193 s16 rsvd2;
194 /*
195 * Counter for packet errors
196 * (set to 0 on start command)
197 */
198 u32 packet_errors;
199 /* Bit error rate: PreRS in DVB-S, PreBCH in DVB-S2X */
200 u32 ber_numerator;
201 u32 ber_denominator;
202 } dvbs2_signal_info;
203
204 struct {
205 s16 i;
206 s16 q;
207 } iq_symbol;
208 };
209 u32 version[4];
210};
211
212struct mci_base {
213 struct list_head mci_list;
214 void *key;
215 struct ddb_link *link;
216 struct completion completion;
217 struct device *dev;
218 struct mutex tuner_lock; /* concurrent tuner access lock */
219 struct mutex mci_lock; /* concurrent MCI access lock */
220 int count;
221 int type;
222};
223
224struct mci {
225 struct mci_base *base;
226 struct dvb_frontend fe;
227 int nr;
228 int demod;
229 int tuner;
230};
231
232struct mci_cfg {
233 int type;
234 struct dvb_frontend_ops *fe_ops;
235 u32 base_size;
236 u32 state_size;
237 int (*init)(struct mci *mci);
238 int (*base_init)(struct mci_base *mci_base);
239 int (*set_input)(struct dvb_frontend *fe, int input);
240};
241
242/* defined in ddbridge-sx8.c */
243extern const struct mci_cfg ddb_max_sx8_cfg;
244
245int ddb_mci_cmd(struct mci *state, struct mci_command *command,
246 struct mci_result *result);
247int ddb_mci_config(struct mci *state, u32 config);
248
249struct dvb_frontend
250*ddb_mci_attach(struct ddb_input *input, struct mci_cfg *cfg, int nr,
251 int (**fn_set_input)(struct dvb_frontend *fe, int input));
252
253#endif /* _DDBRIDGE_MCI_H_ */