diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/media/dvb/dibusb/dvb-fe-dtt200u.c |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/media/dvb/dibusb/dvb-fe-dtt200u.c')
-rw-r--r-- | drivers/media/dvb/dibusb/dvb-fe-dtt200u.c | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/drivers/media/dvb/dibusb/dvb-fe-dtt200u.c b/drivers/media/dvb/dibusb/dvb-fe-dtt200u.c new file mode 100644 index 000000000000..1872aa6d200a --- /dev/null +++ b/drivers/media/dvb/dibusb/dvb-fe-dtt200u.c | |||
@@ -0,0 +1,263 @@ | |||
1 | /* | ||
2 | * dvb-dtt200u-fe.c is a driver which implements the frontend-part of the | ||
3 | * Yakumo/Typhoon/Hama USB2.0 boxes. It is hard-wired to the dibusb-driver as | ||
4 | * it uses the usb-transfer functions directly (maybe creating a | ||
5 | * generic-dvb-usb-lib for all usb-drivers will be reduce some more code.) | ||
6 | * | ||
7 | * Copyright (C) 2005 Patrick Boettcher <patrick.boettcher@desy.de> | ||
8 | * | ||
9 | * see dvb-dibusb-core.c for copyright details. | ||
10 | */ | ||
11 | |||
12 | /* guessed protocol description (reverse engineered): | ||
13 | * read | ||
14 | * 00 - USB type 0x02 for usb2.0, 0x01 for usb1.1 | ||
15 | * 81 - <TS_LOCK> <current frequency divided by 250000> | ||
16 | * 82 - crash - do not touch | ||
17 | * 83 - crash - do not touch | ||
18 | * 84 - remote control | ||
19 | * 85 - crash - do not touch (OK, stop testing here) | ||
20 | * 88 - locking 2 bytes (0x80 0x40 == no signal, 0x89 0x20 == nice signal) | ||
21 | * 89 - noise-to-signal | ||
22 | * 8a - unkown 1 byte - signal_strength | ||
23 | * 8c - ber ??? | ||
24 | * 8d - ber | ||
25 | * 8e - unc | ||
26 | * | ||
27 | * write | ||
28 | * 02 - bandwidth | ||
29 | * 03 - frequency (divided by 250000) | ||
30 | * 04 - pid table (index pid(7:0) pid(12:8)) | ||
31 | * 05 - reset the pid table | ||
32 | * 08 - demod transfer enabled or not (FX2 transfer is enabled by default) | ||
33 | */ | ||
34 | |||
35 | #include "dvb-dibusb.h" | ||
36 | #include "dvb_frontend.h" | ||
37 | |||
38 | struct dtt200u_fe_state { | ||
39 | struct usb_dibusb *dib; | ||
40 | |||
41 | struct dvb_frontend_parameters fep; | ||
42 | struct dvb_frontend frontend; | ||
43 | }; | ||
44 | |||
45 | #define moan(which,what) info("unexpected value in '%s' for cmd '%02x' - please report to linux-dvb@linuxtv.org",which,what) | ||
46 | |||
47 | static int dtt200u_fe_read_status(struct dvb_frontend* fe, fe_status_t *stat) | ||
48 | { | ||
49 | struct dtt200u_fe_state *state = fe->demodulator_priv; | ||
50 | u8 bw[1] = { 0x81 }; | ||
51 | u8 br[3] = { 0 }; | ||
52 | // u8 bdeb[5] = { 0 }; | ||
53 | |||
54 | dibusb_readwrite_usb(state->dib,bw,1,br,3); | ||
55 | switch (br[0]) { | ||
56 | case 0x01: | ||
57 | *stat = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; | ||
58 | break; | ||
59 | case 0x00: | ||
60 | *stat = 0; | ||
61 | break; | ||
62 | default: | ||
63 | moan("br[0]",0x81); | ||
64 | break; | ||
65 | } | ||
66 | |||
67 | // bw[0] = 0x88; | ||
68 | // dibusb_readwrite_usb(state->dib,bw,1,bdeb,5); | ||
69 | |||
70 | // deb_info("%02x: %02x %02x %02x %02x %02x\n",bw[0],bdeb[0],bdeb[1],bdeb[2],bdeb[3],bdeb[4]); | ||
71 | |||
72 | return 0; | ||
73 | } | ||
74 | static int dtt200u_fe_read_ber(struct dvb_frontend* fe, u32 *ber) | ||
75 | { | ||
76 | struct dtt200u_fe_state *state = fe->demodulator_priv; | ||
77 | u8 bw[1] = { 0x8d }; | ||
78 | *ber = 0; | ||
79 | dibusb_readwrite_usb(state->dib,bw,1,(u8*) ber, 3); | ||
80 | return 0; | ||
81 | } | ||
82 | |||
83 | static int dtt200u_fe_read_unc_blocks(struct dvb_frontend* fe, u32 *unc) | ||
84 | { | ||
85 | struct dtt200u_fe_state *state = fe->demodulator_priv; | ||
86 | u8 bw[1] = { 0x8c }; | ||
87 | *unc = 0; | ||
88 | dibusb_readwrite_usb(state->dib,bw,1,(u8*) unc, 3); | ||
89 | return 0; | ||
90 | } | ||
91 | |||
92 | static int dtt200u_fe_read_signal_strength(struct dvb_frontend* fe, u16 *strength) | ||
93 | { | ||
94 | struct dtt200u_fe_state *state = fe->demodulator_priv; | ||
95 | u8 bw[1] = { 0x8a }; | ||
96 | u8 b; | ||
97 | dibusb_readwrite_usb(state->dib,bw,1,&b, 1); | ||
98 | *strength = (b << 8) | b; | ||
99 | return 0; | ||
100 | } | ||
101 | |||
102 | static int dtt200u_fe_read_snr(struct dvb_frontend* fe, u16 *snr) | ||
103 | { | ||
104 | struct dtt200u_fe_state *state = fe->demodulator_priv; | ||
105 | u8 bw[1] = { 0x89 }; | ||
106 | u8 br[1] = { 0 }; | ||
107 | dibusb_readwrite_usb(state->dib,bw,1,br,1); | ||
108 | *snr = ((0xff - br[0]) << 8) | (0xff - br[0]); | ||
109 | return 0; | ||
110 | } | ||
111 | |||
112 | static int dtt200u_fe_init(struct dvb_frontend* fe) | ||
113 | { | ||
114 | struct dtt200u_fe_state *state = fe->demodulator_priv; | ||
115 | u8 b[] = { 0x01 }; | ||
116 | return dibusb_write_usb(state->dib,b,1); | ||
117 | } | ||
118 | |||
119 | static int dtt200u_fe_sleep(struct dvb_frontend* fe) | ||
120 | { | ||
121 | return dtt200u_fe_init(fe); | ||
122 | } | ||
123 | |||
124 | static int dtt200u_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune) | ||
125 | { | ||
126 | tune->min_delay_ms = 1500; | ||
127 | tune->step_size = 166667; | ||
128 | tune->max_drift = 166667 * 2; | ||
129 | return 0; | ||
130 | } | ||
131 | |||
132 | static int dtt200u_fe_set_frontend(struct dvb_frontend* fe, | ||
133 | struct dvb_frontend_parameters *fep) | ||
134 | { | ||
135 | struct dtt200u_fe_state *state = fe->demodulator_priv; | ||
136 | u16 freq = fep->frequency / 250000; | ||
137 | u8 bw,bwbuf[2] = { 0x03, 0 }, freqbuf[3] = { 0x02, 0, 0 }; | ||
138 | |||
139 | switch (fep->u.ofdm.bandwidth) { | ||
140 | case BANDWIDTH_8_MHZ: bw = 8; break; | ||
141 | case BANDWIDTH_7_MHZ: bw = 7; break; | ||
142 | case BANDWIDTH_6_MHZ: bw = 6; break; | ||
143 | case BANDWIDTH_AUTO: return -EOPNOTSUPP; | ||
144 | default: | ||
145 | return -EINVAL; | ||
146 | } | ||
147 | deb_info("set_frontend\n"); | ||
148 | |||
149 | bwbuf[1] = bw; | ||
150 | dibusb_write_usb(state->dib,bwbuf,2); | ||
151 | |||
152 | freqbuf[1] = freq & 0xff; | ||
153 | freqbuf[2] = (freq >> 8) & 0xff; | ||
154 | dibusb_write_usb(state->dib,freqbuf,3); | ||
155 | |||
156 | memcpy(&state->fep,fep,sizeof(struct dvb_frontend_parameters)); | ||
157 | |||
158 | return 0; | ||
159 | } | ||
160 | |||
161 | static int dtt200u_fe_get_frontend(struct dvb_frontend* fe, | ||
162 | struct dvb_frontend_parameters *fep) | ||
163 | { | ||
164 | struct dtt200u_fe_state *state = fe->demodulator_priv; | ||
165 | memcpy(fep,&state->fep,sizeof(struct dvb_frontend_parameters)); | ||
166 | return 0; | ||
167 | } | ||
168 | |||
169 | static void dtt200u_fe_release(struct dvb_frontend* fe) | ||
170 | { | ||
171 | struct dtt200u_fe_state *state = (struct dtt200u_fe_state*) fe->demodulator_priv; | ||
172 | kfree(state); | ||
173 | } | ||
174 | |||
175 | static int dtt200u_pid_control(struct dvb_frontend *fe,int index, int pid,int onoff) | ||
176 | { | ||
177 | struct dtt200u_fe_state *state = (struct dtt200u_fe_state*) fe->demodulator_priv; | ||
178 | u8 b_pid[4]; | ||
179 | pid = onoff ? pid : 0; | ||
180 | |||
181 | b_pid[0] = 0x04; | ||
182 | b_pid[1] = index; | ||
183 | b_pid[2] = pid & 0xff; | ||
184 | b_pid[3] = (pid >> 8) & 0xff; | ||
185 | |||
186 | dibusb_write_usb(state->dib,b_pid,4); | ||
187 | return 0; | ||
188 | } | ||
189 | |||
190 | static int dtt200u_fifo_control(struct dvb_frontend *fe, int onoff) | ||
191 | { | ||
192 | struct dtt200u_fe_state *state = (struct dtt200u_fe_state*) fe->demodulator_priv; | ||
193 | u8 b_streaming[2] = { 0x08, onoff }; | ||
194 | u8 b_rst_pid[1] = { 0x05 }; | ||
195 | |||
196 | dibusb_write_usb(state->dib,b_streaming,2); | ||
197 | |||
198 | if (!onoff) | ||
199 | dibusb_write_usb(state->dib,b_rst_pid,1); | ||
200 | return 0; | ||
201 | } | ||
202 | |||
203 | static struct dvb_frontend_ops dtt200u_fe_ops; | ||
204 | |||
205 | struct dvb_frontend* dtt200u_fe_attach(struct usb_dibusb *dib, struct dib_fe_xfer_ops *xfer_ops) | ||
206 | { | ||
207 | struct dtt200u_fe_state* state = NULL; | ||
208 | |||
209 | /* allocate memory for the internal state */ | ||
210 | state = (struct dtt200u_fe_state*) kmalloc(sizeof(struct dtt200u_fe_state), GFP_KERNEL); | ||
211 | if (state == NULL) | ||
212 | goto error; | ||
213 | memset(state,0,sizeof(struct dtt200u_fe_state)); | ||
214 | |||
215 | deb_info("attaching frontend dtt200u\n"); | ||
216 | |||
217 | state->dib = dib; | ||
218 | |||
219 | state->frontend.ops = &dtt200u_fe_ops; | ||
220 | state->frontend.demodulator_priv = state; | ||
221 | |||
222 | xfer_ops->fifo_ctrl = dtt200u_fifo_control; | ||
223 | xfer_ops->pid_ctrl = dtt200u_pid_control; | ||
224 | |||
225 | goto success; | ||
226 | error: | ||
227 | return NULL; | ||
228 | success: | ||
229 | return &state->frontend; | ||
230 | } | ||
231 | |||
232 | static struct dvb_frontend_ops dtt200u_fe_ops = { | ||
233 | .info = { | ||
234 | .name = "DTT200U (Yakumo/Typhoon/Hama) DVB-T", | ||
235 | .type = FE_OFDM, | ||
236 | .frequency_min = 44250000, | ||
237 | .frequency_max = 867250000, | ||
238 | .frequency_stepsize = 250000, | ||
239 | .caps = FE_CAN_INVERSION_AUTO | | ||
240 | FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | | ||
241 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | | ||
242 | FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO | | ||
243 | FE_CAN_TRANSMISSION_MODE_AUTO | | ||
244 | FE_CAN_GUARD_INTERVAL_AUTO | | ||
245 | FE_CAN_RECOVER | | ||
246 | FE_CAN_HIERARCHY_AUTO, | ||
247 | }, | ||
248 | |||
249 | .release = dtt200u_fe_release, | ||
250 | |||
251 | .init = dtt200u_fe_init, | ||
252 | .sleep = dtt200u_fe_sleep, | ||
253 | |||
254 | .set_frontend = dtt200u_fe_set_frontend, | ||
255 | .get_frontend = dtt200u_fe_get_frontend, | ||
256 | .get_tune_settings = dtt200u_fe_get_tune_settings, | ||
257 | |||
258 | .read_status = dtt200u_fe_read_status, | ||
259 | .read_ber = dtt200u_fe_read_ber, | ||
260 | .read_signal_strength = dtt200u_fe_read_signal_strength, | ||
261 | .read_snr = dtt200u_fe_read_snr, | ||
262 | .read_ucblocks = dtt200u_fe_read_unc_blocks, | ||
263 | }; | ||