xref: /openbmc/linux/drivers/media/usb/dvb-usb/az6027.c (revision 12eb4683)
1 /* DVB USB compliant Linux driver for the AZUREWAVE DVB-S/S2 USB2.0 (AZ6027)
2  * receiver.
3  *
4  * Copyright (C) 2009 Adams.Xu <adams.xu@azwave.com.cn>
5  *
6  *	This program is free software; you can redistribute it and/or modify it
7  *	under the terms of the GNU General Public License as published by the Free
8  *	Software Foundation, version 2.
9  *
10  * see Documentation/dvb/README.dvb-usb for more information
11  */
12 #include "az6027.h"
13 
14 #include "stb0899_drv.h"
15 #include "stb0899_reg.h"
16 #include "stb0899_cfg.h"
17 
18 #include "stb6100.h"
19 #include "stb6100_cfg.h"
20 #include "dvb_ca_en50221.h"
21 
22 int dvb_usb_az6027_debug;
23 module_param_named(debug, dvb_usb_az6027_debug, int, 0644);
24 MODULE_PARM_DESC(debug, "set debugging level (1=info,xfer=2,rc=4 (or-able))." DVB_USB_DEBUG_STATUS);
25 
26 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
27 
28 struct az6027_device_state {
29 	struct dvb_ca_en50221 ca;
30 	struct mutex ca_mutex;
31 	u8 power_state;
32 };
33 
34 static const struct stb0899_s1_reg az6027_stb0899_s1_init_1[] = {
35 
36 	/* 0x0000000b, SYSREG */
37 	{ STB0899_DEV_ID		, 0x30 },
38 	{ STB0899_DISCNTRL1		, 0x32 },
39 	{ STB0899_DISCNTRL2     	, 0x80 },
40 	{ STB0899_DISRX_ST0     	, 0x04 },
41 	{ STB0899_DISRX_ST1     	, 0x00 },
42 	{ STB0899_DISPARITY     	, 0x00 },
43 	{ STB0899_DISSTATUS		, 0x20 },
44 	{ STB0899_DISF22        	, 0x99 },
45 	{ STB0899_DISF22RX      	, 0xa8 },
46 	/* SYSREG ? */
47 	{ STB0899_ACRPRESC      	, 0x11 },
48 	{ STB0899_ACRDIV1       	, 0x0a },
49 	{ STB0899_ACRDIV2       	, 0x05 },
50 	{ STB0899_DACR1         	, 0x00 },
51 	{ STB0899_DACR2         	, 0x00 },
52 	{ STB0899_OUTCFG        	, 0x00 },
53 	{ STB0899_MODECFG       	, 0x00 },
54 	{ STB0899_IRQSTATUS_3		, 0xfe },
55 	{ STB0899_IRQSTATUS_2		, 0x03 },
56 	{ STB0899_IRQSTATUS_1		, 0x7c },
57 	{ STB0899_IRQSTATUS_0		, 0xf4 },
58 	{ STB0899_IRQMSK_3      	, 0xf3 },
59 	{ STB0899_IRQMSK_2      	, 0xfc },
60 	{ STB0899_IRQMSK_1      	, 0xff },
61 	{ STB0899_IRQMSK_0		, 0xff },
62 	{ STB0899_IRQCFG		, 0x00 },
63 	{ STB0899_I2CCFG        	, 0x88 },
64 	{ STB0899_I2CRPT        	, 0x58 },
65 	{ STB0899_IOPVALUE5		, 0x00 },
66 	{ STB0899_IOPVALUE4		, 0x33 },
67 	{ STB0899_IOPVALUE3		, 0x6d },
68 	{ STB0899_IOPVALUE2		, 0x90 },
69 	{ STB0899_IOPVALUE1		, 0x60 },
70 	{ STB0899_IOPVALUE0		, 0x00 },
71 	{ STB0899_GPIO00CFG     	, 0x82 },
72 	{ STB0899_GPIO01CFG     	, 0x82 },
73 	{ STB0899_GPIO02CFG     	, 0x82 },
74 	{ STB0899_GPIO03CFG     	, 0x82 },
75 	{ STB0899_GPIO04CFG     	, 0x82 },
76 	{ STB0899_GPIO05CFG     	, 0x82 },
77 	{ STB0899_GPIO06CFG     	, 0x82 },
78 	{ STB0899_GPIO07CFG     	, 0x82 },
79 	{ STB0899_GPIO08CFG     	, 0x82 },
80 	{ STB0899_GPIO09CFG     	, 0x82 },
81 	{ STB0899_GPIO10CFG     	, 0x82 },
82 	{ STB0899_GPIO11CFG     	, 0x82 },
83 	{ STB0899_GPIO12CFG     	, 0x82 },
84 	{ STB0899_GPIO13CFG     	, 0x82 },
85 	{ STB0899_GPIO14CFG     	, 0x82 },
86 	{ STB0899_GPIO15CFG     	, 0x82 },
87 	{ STB0899_GPIO16CFG     	, 0x82 },
88 	{ STB0899_GPIO17CFG     	, 0x82 },
89 	{ STB0899_GPIO18CFG     	, 0x82 },
90 	{ STB0899_GPIO19CFG     	, 0x82 },
91 	{ STB0899_GPIO20CFG     	, 0x82 },
92 	{ STB0899_SDATCFG       	, 0xb8 },
93 	{ STB0899_SCLTCFG       	, 0xba },
94 	{ STB0899_AGCRFCFG      	, 0x1c }, /* 0x11 */
95 	{ STB0899_GPIO22        	, 0x82 }, /* AGCBB2CFG */
96 	{ STB0899_GPIO21        	, 0x91 }, /* AGCBB1CFG */
97 	{ STB0899_DIRCLKCFG     	, 0x82 },
98 	{ STB0899_CLKOUT27CFG   	, 0x7e },
99 	{ STB0899_STDBYCFG      	, 0x82 },
100 	{ STB0899_CS0CFG        	, 0x82 },
101 	{ STB0899_CS1CFG        	, 0x82 },
102 	{ STB0899_DISEQCOCFG    	, 0x20 },
103 	{ STB0899_GPIO32CFG		, 0x82 },
104 	{ STB0899_GPIO33CFG		, 0x82 },
105 	{ STB0899_GPIO34CFG		, 0x82 },
106 	{ STB0899_GPIO35CFG		, 0x82 },
107 	{ STB0899_GPIO36CFG		, 0x82 },
108 	{ STB0899_GPIO37CFG		, 0x82 },
109 	{ STB0899_GPIO38CFG		, 0x82 },
110 	{ STB0899_GPIO39CFG		, 0x82 },
111 	{ STB0899_NCOARSE       	, 0x17 }, /* 0x15 = 27 Mhz Clock, F/3 = 198MHz, F/6 = 99MHz */
112 	{ STB0899_SYNTCTRL      	, 0x02 }, /* 0x00 = CLK from CLKI, 0x02 = CLK from XTALI */
113 	{ STB0899_FILTCTRL      	, 0x00 },
114 	{ STB0899_SYSCTRL       	, 0x01 },
115 	{ STB0899_STOPCLK1      	, 0x20 },
116 	{ STB0899_STOPCLK2      	, 0x00 },
117 	{ STB0899_INTBUFSTATUS		, 0x00 },
118 	{ STB0899_INTBUFCTRL    	, 0x0a },
119 	{ 0xffff			, 0xff },
120 };
121 
122 static const struct stb0899_s1_reg az6027_stb0899_s1_init_3[] = {
123 	{ STB0899_DEMOD         	, 0x00 },
124 	{ STB0899_RCOMPC        	, 0xc9 },
125 	{ STB0899_AGC1CN        	, 0x01 },
126 	{ STB0899_AGC1REF       	, 0x10 },
127 	{ STB0899_RTC			, 0x23 },
128 	{ STB0899_TMGCFG        	, 0x4e },
129 	{ STB0899_AGC2REF       	, 0x34 },
130 	{ STB0899_TLSR          	, 0x84 },
131 	{ STB0899_CFD           	, 0xf7 },
132 	{ STB0899_ACLC			, 0x87 },
133 	{ STB0899_BCLC          	, 0x94 },
134 	{ STB0899_EQON          	, 0x41 },
135 	{ STB0899_LDT           	, 0xf1 },
136 	{ STB0899_LDT2          	, 0xe3 },
137 	{ STB0899_EQUALREF      	, 0xb4 },
138 	{ STB0899_TMGRAMP       	, 0x10 },
139 	{ STB0899_TMGTHD        	, 0x30 },
140 	{ STB0899_IDCCOMP		, 0xfd },
141 	{ STB0899_QDCCOMP		, 0xff },
142 	{ STB0899_POWERI		, 0x0c },
143 	{ STB0899_POWERQ		, 0x0f },
144 	{ STB0899_RCOMP			, 0x6c },
145 	{ STB0899_AGCIQIN		, 0x80 },
146 	{ STB0899_AGC2I1		, 0x06 },
147 	{ STB0899_AGC2I2		, 0x00 },
148 	{ STB0899_TLIR			, 0x30 },
149 	{ STB0899_RTF			, 0x7f },
150 	{ STB0899_DSTATUS		, 0x00 },
151 	{ STB0899_LDI			, 0xbc },
152 	{ STB0899_CFRM			, 0xea },
153 	{ STB0899_CFRL			, 0x31 },
154 	{ STB0899_NIRM			, 0x2b },
155 	{ STB0899_NIRL			, 0x80 },
156 	{ STB0899_ISYMB			, 0x1d },
157 	{ STB0899_QSYMB			, 0xa6 },
158 	{ STB0899_SFRH          	, 0x2f },
159 	{ STB0899_SFRM          	, 0x68 },
160 	{ STB0899_SFRL          	, 0x40 },
161 	{ STB0899_SFRUPH        	, 0x2f },
162 	{ STB0899_SFRUPM        	, 0x68 },
163 	{ STB0899_SFRUPL        	, 0x40 },
164 	{ STB0899_EQUAI1		, 0x02 },
165 	{ STB0899_EQUAQ1		, 0xff },
166 	{ STB0899_EQUAI2		, 0x04 },
167 	{ STB0899_EQUAQ2		, 0x05 },
168 	{ STB0899_EQUAI3		, 0x02 },
169 	{ STB0899_EQUAQ3		, 0xfd },
170 	{ STB0899_EQUAI4		, 0x03 },
171 	{ STB0899_EQUAQ4		, 0x07 },
172 	{ STB0899_EQUAI5		, 0x08 },
173 	{ STB0899_EQUAQ5		, 0xf5 },
174 	{ STB0899_DSTATUS2		, 0x00 },
175 	{ STB0899_VSTATUS       	, 0x00 },
176 	{ STB0899_VERROR		, 0x86 },
177 	{ STB0899_IQSWAP		, 0x2a },
178 	{ STB0899_ECNT1M		, 0x00 },
179 	{ STB0899_ECNT1L		, 0x00 },
180 	{ STB0899_ECNT2M		, 0x00 },
181 	{ STB0899_ECNT2L		, 0x00 },
182 	{ STB0899_ECNT3M		, 0x0a },
183 	{ STB0899_ECNT3L		, 0xad },
184 	{ STB0899_FECAUTO1      	, 0x06 },
185 	{ STB0899_FECM			, 0x01 },
186 	{ STB0899_VTH12         	, 0xb0 },
187 	{ STB0899_VTH23         	, 0x7a },
188 	{ STB0899_VTH34			, 0x58 },
189 	{ STB0899_VTH56         	, 0x38 },
190 	{ STB0899_VTH67         	, 0x34 },
191 	{ STB0899_VTH78         	, 0x24 },
192 	{ STB0899_PRVIT         	, 0xff },
193 	{ STB0899_VITSYNC       	, 0x19 },
194 	{ STB0899_RSULC         	, 0xb1 }, /* DVB = 0xb1, DSS = 0xa1 */
195 	{ STB0899_TSULC         	, 0x42 },
196 	{ STB0899_RSLLC         	, 0x41 },
197 	{ STB0899_TSLPL			, 0x12 },
198 	{ STB0899_TSCFGH        	, 0x0c },
199 	{ STB0899_TSCFGM        	, 0x00 },
200 	{ STB0899_TSCFGL        	, 0x00 },
201 	{ STB0899_TSOUT			, 0x69 }, /* 0x0d for CAM */
202 	{ STB0899_RSSYNCDEL     	, 0x00 },
203 	{ STB0899_TSINHDELH     	, 0x02 },
204 	{ STB0899_TSINHDELM		, 0x00 },
205 	{ STB0899_TSINHDELL		, 0x00 },
206 	{ STB0899_TSLLSTKM		, 0x1b },
207 	{ STB0899_TSLLSTKL		, 0xb3 },
208 	{ STB0899_TSULSTKM		, 0x00 },
209 	{ STB0899_TSULSTKL		, 0x00 },
210 	{ STB0899_PCKLENUL		, 0xbc },
211 	{ STB0899_PCKLENLL		, 0xcc },
212 	{ STB0899_RSPCKLEN		, 0xbd },
213 	{ STB0899_TSSTATUS		, 0x90 },
214 	{ STB0899_ERRCTRL1      	, 0xb6 },
215 	{ STB0899_ERRCTRL2      	, 0x95 },
216 	{ STB0899_ERRCTRL3      	, 0x8d },
217 	{ STB0899_DMONMSK1		, 0x27 },
218 	{ STB0899_DMONMSK0		, 0x03 },
219 	{ STB0899_DEMAPVIT      	, 0x5c },
220 	{ STB0899_PLPARM		, 0x19 },
221 	{ STB0899_PDELCTRL      	, 0x48 },
222 	{ STB0899_PDELCTRL2     	, 0x00 },
223 	{ STB0899_BBHCTRL1      	, 0x00 },
224 	{ STB0899_BBHCTRL2      	, 0x00 },
225 	{ STB0899_HYSTTHRESH    	, 0x77 },
226 	{ STB0899_MATCSTM		, 0x00 },
227 	{ STB0899_MATCSTL		, 0x00 },
228 	{ STB0899_UPLCSTM		, 0x00 },
229 	{ STB0899_UPLCSTL		, 0x00 },
230 	{ STB0899_DFLCSTM		, 0x00 },
231 	{ STB0899_DFLCSTL		, 0x00 },
232 	{ STB0899_SYNCCST		, 0x00 },
233 	{ STB0899_SYNCDCSTM		, 0x00 },
234 	{ STB0899_SYNCDCSTL		, 0x00 },
235 	{ STB0899_ISI_ENTRY		, 0x00 },
236 	{ STB0899_ISI_BIT_EN		, 0x00 },
237 	{ STB0899_MATSTRM		, 0xf0 },
238 	{ STB0899_MATSTRL		, 0x02 },
239 	{ STB0899_UPLSTRM		, 0x45 },
240 	{ STB0899_UPLSTRL		, 0x60 },
241 	{ STB0899_DFLSTRM		, 0xe3 },
242 	{ STB0899_DFLSTRL		, 0x00 },
243 	{ STB0899_SYNCSTR		, 0x47 },
244 	{ STB0899_SYNCDSTRM		, 0x05 },
245 	{ STB0899_SYNCDSTRL		, 0x18 },
246 	{ STB0899_CFGPDELSTATUS1	, 0x19 },
247 	{ STB0899_CFGPDELSTATUS2	, 0x2b },
248 	{ STB0899_BBFERRORM		, 0x00 },
249 	{ STB0899_BBFERRORL		, 0x01 },
250 	{ STB0899_UPKTERRORM		, 0x00 },
251 	{ STB0899_UPKTERRORL		, 0x00 },
252 	{ 0xffff			, 0xff },
253 };
254 
255 
256 
257 static struct stb0899_config az6027_stb0899_config = {
258 	.init_dev		= az6027_stb0899_s1_init_1,
259 	.init_s2_demod		= stb0899_s2_init_2,
260 	.init_s1_demod		= az6027_stb0899_s1_init_3,
261 	.init_s2_fec		= stb0899_s2_init_4,
262 	.init_tst		= stb0899_s1_init_5,
263 
264 	.demod_address 		= 0xd0, /* 0x68, 0xd0 >> 1 */
265 
266 	.xtal_freq		= 27000000,
267 	.inversion		= IQ_SWAP_ON,
268 
269 	.lo_clk			= 76500000,
270 	.hi_clk			= 99000000,
271 
272 	.esno_ave		= STB0899_DVBS2_ESNO_AVE,
273 	.esno_quant		= STB0899_DVBS2_ESNO_QUANT,
274 	.avframes_coarse	= STB0899_DVBS2_AVFRAMES_COARSE,
275 	.avframes_fine		= STB0899_DVBS2_AVFRAMES_FINE,
276 	.miss_threshold		= STB0899_DVBS2_MISS_THRESHOLD,
277 	.uwp_threshold_acq	= STB0899_DVBS2_UWP_THRESHOLD_ACQ,
278 	.uwp_threshold_track	= STB0899_DVBS2_UWP_THRESHOLD_TRACK,
279 	.uwp_threshold_sof	= STB0899_DVBS2_UWP_THRESHOLD_SOF,
280 	.sof_search_timeout	= STB0899_DVBS2_SOF_SEARCH_TIMEOUT,
281 
282 	.btr_nco_bits		= STB0899_DVBS2_BTR_NCO_BITS,
283 	.btr_gain_shift_offset	= STB0899_DVBS2_BTR_GAIN_SHIFT_OFFSET,
284 	.crl_nco_bits		= STB0899_DVBS2_CRL_NCO_BITS,
285 	.ldpc_max_iter		= STB0899_DVBS2_LDPC_MAX_ITER,
286 
287 	.tuner_get_frequency	= stb6100_get_frequency,
288 	.tuner_set_frequency	= stb6100_set_frequency,
289 	.tuner_set_bandwidth	= stb6100_set_bandwidth,
290 	.tuner_get_bandwidth	= stb6100_get_bandwidth,
291 	.tuner_set_rfsiggain	= NULL,
292 };
293 
294 static struct stb6100_config az6027_stb6100_config = {
295 	.tuner_address	= 0xc0,
296 	.refclock	= 27000000,
297 };
298 
299 
300 /* check for mutex FIXME */
301 static int az6027_usb_in_op(struct dvb_usb_device *d, u8 req,
302 			    u16 value, u16 index, u8 *b, int blen)
303 {
304 	int ret = -1;
305 	if (mutex_lock_interruptible(&d->usb_mutex))
306 		return -EAGAIN;
307 
308 	ret = usb_control_msg(d->udev,
309 			      usb_rcvctrlpipe(d->udev, 0),
310 			      req,
311 			      USB_TYPE_VENDOR | USB_DIR_IN,
312 			      value,
313 			      index,
314 			      b,
315 			      blen,
316 			      2000);
317 
318 	if (ret < 0) {
319 		warn("usb in operation failed. (%d)", ret);
320 		ret = -EIO;
321 	} else
322 		ret = 0;
323 
324 	deb_xfer("in: req. %02x, val: %04x, ind: %04x, buffer: ", req, value, index);
325 	debug_dump(b, blen, deb_xfer);
326 
327 	mutex_unlock(&d->usb_mutex);
328 	return ret;
329 }
330 
331 static int az6027_usb_out_op(struct dvb_usb_device *d,
332 			     u8 req,
333 			     u16 value,
334 			     u16 index,
335 			     u8 *b,
336 			     int blen)
337 {
338 	int ret;
339 
340 	deb_xfer("out: req. %02x, val: %04x, ind: %04x, buffer: ", req, value, index);
341 	debug_dump(b, blen, deb_xfer);
342 
343 	if (mutex_lock_interruptible(&d->usb_mutex))
344 		return -EAGAIN;
345 
346 	ret = usb_control_msg(d->udev,
347 			      usb_sndctrlpipe(d->udev, 0),
348 			      req,
349 			      USB_TYPE_VENDOR | USB_DIR_OUT,
350 			      value,
351 			      index,
352 			      b,
353 			      blen,
354 			      2000);
355 
356 	if (ret != blen) {
357 		warn("usb out operation failed. (%d)", ret);
358 		mutex_unlock(&d->usb_mutex);
359 		return -EIO;
360 	} else{
361 		mutex_unlock(&d->usb_mutex);
362 		return 0;
363 	}
364 }
365 
366 static int az6027_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff)
367 {
368 	int ret;
369 	u8 req;
370 	u16 value;
371 	u16 index;
372 	int blen;
373 
374 	deb_info("%s %d", __func__, onoff);
375 
376 	req = 0xBC;
377 	value = onoff;
378 	index = 0;
379 	blen = 0;
380 
381 	ret = az6027_usb_out_op(adap->dev, req, value, index, NULL, blen);
382 	if (ret != 0)
383 		warn("usb out operation failed. (%d)", ret);
384 
385 	return ret;
386 }
387 
388 /* keys for the enclosed remote control */
389 static struct rc_map_table rc_map_az6027_table[] = {
390 	{ 0x01, KEY_1 },
391 	{ 0x02, KEY_2 },
392 };
393 
394 /* remote control stuff (does not work with my box) */
395 static int az6027_rc_query(struct dvb_usb_device *d, u32 *event, int *state)
396 {
397 	return 0;
398 }
399 
400 /*
401 int az6027_power_ctrl(struct dvb_usb_device *d, int onoff)
402 {
403 	u8 v = onoff;
404 	return az6027_usb_out_op(d,0xBC,v,3,NULL,1);
405 }
406 */
407 
408 static int az6027_ci_read_attribute_mem(struct dvb_ca_en50221 *ca,
409 					int slot,
410 					int address)
411 {
412 	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
413 	struct az6027_device_state *state = (struct az6027_device_state *)d->priv;
414 
415 	int ret;
416 	u8 req;
417 	u16 value;
418 	u16 index;
419 	int blen;
420 	u8 *b;
421 
422 	if (slot != 0)
423 		return -EINVAL;
424 
425 	b = kmalloc(12, GFP_KERNEL);
426 	if (!b)
427 		return -ENOMEM;
428 
429 	mutex_lock(&state->ca_mutex);
430 
431 	req = 0xC1;
432 	value = address;
433 	index = 0;
434 	blen = 1;
435 
436 	ret = az6027_usb_in_op(d, req, value, index, b, blen);
437 	if (ret < 0) {
438 		warn("usb in operation failed. (%d)", ret);
439 		ret = -EINVAL;
440 	} else {
441 		ret = b[0];
442 	}
443 
444 	mutex_unlock(&state->ca_mutex);
445 	kfree(b);
446 	return ret;
447 }
448 
449 static int az6027_ci_write_attribute_mem(struct dvb_ca_en50221 *ca,
450 					 int slot,
451 					 int address,
452 					 u8 value)
453 {
454 	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
455 	struct az6027_device_state *state = (struct az6027_device_state *)d->priv;
456 
457 	int ret;
458 	u8 req;
459 	u16 value1;
460 	u16 index;
461 	int blen;
462 
463 	deb_info("%s %d", __func__, slot);
464 	if (slot != 0)
465 		return -EINVAL;
466 
467 	mutex_lock(&state->ca_mutex);
468 	req = 0xC2;
469 	value1 = address;
470 	index = value;
471 	blen = 0;
472 
473 	ret = az6027_usb_out_op(d, req, value1, index, NULL, blen);
474 	if (ret != 0)
475 		warn("usb out operation failed. (%d)", ret);
476 
477 	mutex_unlock(&state->ca_mutex);
478 	return ret;
479 }
480 
481 static int az6027_ci_read_cam_control(struct dvb_ca_en50221 *ca,
482 				      int slot,
483 				      u8 address)
484 {
485 	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
486 	struct az6027_device_state *state = (struct az6027_device_state *)d->priv;
487 
488 	int ret;
489 	u8 req;
490 	u16 value;
491 	u16 index;
492 	int blen;
493 	u8 *b;
494 
495 	if (slot != 0)
496 		return -EINVAL;
497 
498 	b = kmalloc(12, GFP_KERNEL);
499 	if (!b)
500 		return -ENOMEM;
501 
502 	mutex_lock(&state->ca_mutex);
503 
504 	req = 0xC3;
505 	value = address;
506 	index = 0;
507 	blen = 2;
508 
509 	ret = az6027_usb_in_op(d, req, value, index, b, blen);
510 	if (ret < 0) {
511 		warn("usb in operation failed. (%d)", ret);
512 		ret = -EINVAL;
513 	} else {
514 		if (b[0] == 0)
515 			warn("Read CI IO error");
516 
517 		ret = b[1];
518 		deb_info("read cam data = %x from 0x%x", b[1], value);
519 	}
520 
521 	mutex_unlock(&state->ca_mutex);
522 	kfree(b);
523 	return ret;
524 }
525 
526 static int az6027_ci_write_cam_control(struct dvb_ca_en50221 *ca,
527 				       int slot,
528 				       u8 address,
529 				       u8 value)
530 {
531 	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
532 	struct az6027_device_state *state = (struct az6027_device_state *)d->priv;
533 
534 	int ret;
535 	u8 req;
536 	u16 value1;
537 	u16 index;
538 	int blen;
539 
540 	if (slot != 0)
541 		return -EINVAL;
542 
543 	mutex_lock(&state->ca_mutex);
544 	req = 0xC4;
545 	value1 = address;
546 	index = value;
547 	blen = 0;
548 
549 	ret = az6027_usb_out_op(d, req, value1, index, NULL, blen);
550 	if (ret != 0) {
551 		warn("usb out operation failed. (%d)", ret);
552 		goto failed;
553 	}
554 
555 failed:
556 	mutex_unlock(&state->ca_mutex);
557 	return ret;
558 }
559 
560 static int CI_CamReady(struct dvb_ca_en50221 *ca, int slot)
561 {
562 	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
563 
564 	int ret;
565 	u8 req;
566 	u16 value;
567 	u16 index;
568 	int blen;
569 	u8 *b;
570 
571 	b = kmalloc(12, GFP_KERNEL);
572 	if (!b)
573 		return -ENOMEM;
574 
575 	req = 0xC8;
576 	value = 0;
577 	index = 0;
578 	blen = 1;
579 
580 	ret = az6027_usb_in_op(d, req, value, index, b, blen);
581 	if (ret < 0) {
582 		warn("usb in operation failed. (%d)", ret);
583 		ret = -EIO;
584 	} else{
585 		ret = b[0];
586 	}
587 	kfree(b);
588 	return ret;
589 }
590 
591 static int az6027_ci_slot_reset(struct dvb_ca_en50221 *ca, int slot)
592 {
593 	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
594 	struct az6027_device_state *state = (struct az6027_device_state *)d->priv;
595 
596 	int ret, i;
597 	u8 req;
598 	u16 value;
599 	u16 index;
600 	int blen;
601 
602 	mutex_lock(&state->ca_mutex);
603 
604 	req = 0xC6;
605 	value = 1;
606 	index = 0;
607 	blen = 0;
608 
609 	ret = az6027_usb_out_op(d, req, value, index, NULL, blen);
610 	if (ret != 0) {
611 		warn("usb out operation failed. (%d)", ret);
612 		goto failed;
613 	}
614 
615 	msleep(500);
616 	req = 0xC6;
617 	value = 0;
618 	index = 0;
619 	blen = 0;
620 
621 	ret = az6027_usb_out_op(d, req, value, index, NULL, blen);
622 	if (ret != 0) {
623 		warn("usb out operation failed. (%d)", ret);
624 		goto failed;
625 	}
626 
627 	for (i = 0; i < 15; i++) {
628 		msleep(100);
629 
630 		if (CI_CamReady(ca, slot)) {
631 			deb_info("CAM Ready");
632 			break;
633 		}
634 	}
635 	msleep(5000);
636 
637 failed:
638 	mutex_unlock(&state->ca_mutex);
639 	return ret;
640 }
641 
642 static int az6027_ci_slot_shutdown(struct dvb_ca_en50221 *ca, int slot)
643 {
644 	return 0;
645 }
646 
647 static int az6027_ci_slot_ts_enable(struct dvb_ca_en50221 *ca, int slot)
648 {
649 	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
650 	struct az6027_device_state *state = (struct az6027_device_state *)d->priv;
651 
652 	int ret;
653 	u8 req;
654 	u16 value;
655 	u16 index;
656 	int blen;
657 
658 	deb_info("%s", __func__);
659 	mutex_lock(&state->ca_mutex);
660 	req = 0xC7;
661 	value = 1;
662 	index = 0;
663 	blen = 0;
664 
665 	ret = az6027_usb_out_op(d, req, value, index, NULL, blen);
666 	if (ret != 0) {
667 		warn("usb out operation failed. (%d)", ret);
668 		goto failed;
669 	}
670 
671 failed:
672 	mutex_unlock(&state->ca_mutex);
673 	return ret;
674 }
675 
676 static int az6027_ci_poll_slot_status(struct dvb_ca_en50221 *ca, int slot, int open)
677 {
678 	struct dvb_usb_device *d = (struct dvb_usb_device *)ca->data;
679 	struct az6027_device_state *state = (struct az6027_device_state *)d->priv;
680 	int ret;
681 	u8 req;
682 	u16 value;
683 	u16 index;
684 	int blen;
685 	u8 *b;
686 
687 	b = kmalloc(12, GFP_KERNEL);
688 	if (!b)
689 		return -ENOMEM;
690 	mutex_lock(&state->ca_mutex);
691 
692 	req = 0xC5;
693 	value = 0;
694 	index = 0;
695 	blen = 1;
696 
697 	ret = az6027_usb_in_op(d, req, value, index, b, blen);
698 	if (ret < 0) {
699 		warn("usb in operation failed. (%d)", ret);
700 		ret = -EIO;
701 	} else
702 		ret = 0;
703 
704 	if (!ret && b[0] == 1) {
705 		ret = DVB_CA_EN50221_POLL_CAM_PRESENT |
706 		      DVB_CA_EN50221_POLL_CAM_READY;
707 	}
708 
709 	mutex_unlock(&state->ca_mutex);
710 	kfree(b);
711 	return ret;
712 }
713 
714 
715 static void az6027_ci_uninit(struct dvb_usb_device *d)
716 {
717 	struct az6027_device_state *state;
718 
719 	deb_info("%s", __func__);
720 
721 	if (NULL == d)
722 		return;
723 
724 	state = (struct az6027_device_state *)d->priv;
725 	if (NULL == state)
726 		return;
727 
728 	if (NULL == state->ca.data)
729 		return;
730 
731 	dvb_ca_en50221_release(&state->ca);
732 
733 	memset(&state->ca, 0, sizeof(state->ca));
734 }
735 
736 
737 static int az6027_ci_init(struct dvb_usb_adapter *a)
738 {
739 	struct dvb_usb_device *d = a->dev;
740 	struct az6027_device_state *state = (struct az6027_device_state *)d->priv;
741 	int ret;
742 
743 	deb_info("%s", __func__);
744 
745 	mutex_init(&state->ca_mutex);
746 
747 	state->ca.owner			= THIS_MODULE;
748 	state->ca.read_attribute_mem	= az6027_ci_read_attribute_mem;
749 	state->ca.write_attribute_mem	= az6027_ci_write_attribute_mem;
750 	state->ca.read_cam_control	= az6027_ci_read_cam_control;
751 	state->ca.write_cam_control	= az6027_ci_write_cam_control;
752 	state->ca.slot_reset		= az6027_ci_slot_reset;
753 	state->ca.slot_shutdown		= az6027_ci_slot_shutdown;
754 	state->ca.slot_ts_enable	= az6027_ci_slot_ts_enable;
755 	state->ca.poll_slot_status	= az6027_ci_poll_slot_status;
756 	state->ca.data			= d;
757 
758 	ret = dvb_ca_en50221_init(&a->dvb_adap,
759 				  &state->ca,
760 				  0, /* flags */
761 				  1);/* n_slots */
762 	if (ret != 0) {
763 		err("Cannot initialize CI: Error %d.", ret);
764 		memset(&state->ca, 0, sizeof(state->ca));
765 		return ret;
766 	}
767 
768 	deb_info("CI initialized.");
769 
770 	return 0;
771 }
772 
773 /*
774 static int az6027_read_mac_addr(struct dvb_usb_device *d, u8 mac[6])
775 {
776 	az6027_usb_in_op(d, 0xb7, 6, 0, &mac[0], 6);
777 	return 0;
778 }
779 */
780 
781 static int az6027_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
782 {
783 
784 	u8 buf;
785 	struct dvb_usb_adapter *adap = fe->dvb->priv;
786 
787 	struct i2c_msg i2c_msg = {
788 		.addr	= 0x99,
789 		.flags	= 0,
790 		.buf	= &buf,
791 		.len	= 1
792 	};
793 
794 	/*
795 	 * 2   --18v
796 	 * 1   --13v
797 	 * 0   --off
798 	 */
799 	switch (voltage) {
800 	case SEC_VOLTAGE_13:
801 		buf = 1;
802 		i2c_transfer(&adap->dev->i2c_adap, &i2c_msg, 1);
803 		break;
804 
805 	case SEC_VOLTAGE_18:
806 		buf = 2;
807 		i2c_transfer(&adap->dev->i2c_adap, &i2c_msg, 1);
808 		break;
809 
810 	case SEC_VOLTAGE_OFF:
811 		buf = 0;
812 		i2c_transfer(&adap->dev->i2c_adap, &i2c_msg, 1);
813 		break;
814 
815 	default:
816 		return -EINVAL;
817 	}
818 	return 0;
819 }
820 
821 
822 static int az6027_frontend_poweron(struct dvb_usb_adapter *adap)
823 {
824 	int ret;
825 	u8 req;
826 	u16 value;
827 	u16 index;
828 	int blen;
829 
830 	req = 0xBC;
831 	value = 1; /* power on */
832 	index = 3;
833 	blen = 0;
834 
835 	ret = az6027_usb_out_op(adap->dev, req, value, index, NULL, blen);
836 	if (ret != 0)
837 		return -EIO;
838 
839 	return 0;
840 }
841 static int az6027_frontend_reset(struct dvb_usb_adapter *adap)
842 {
843 	int ret;
844 	u8 req;
845 	u16 value;
846 	u16 index;
847 	int blen;
848 
849 	/* reset demodulator */
850 	req = 0xC0;
851 	value = 1; /* high */
852 	index = 3;
853 	blen = 0;
854 
855 	ret = az6027_usb_out_op(adap->dev, req, value, index, NULL, blen);
856 	if (ret != 0)
857 		return -EIO;
858 
859 	req = 0xC0;
860 	value = 0; /* low */
861 	index = 3;
862 	blen = 0;
863 	msleep_interruptible(200);
864 
865 	ret = az6027_usb_out_op(adap->dev, req, value, index, NULL, blen);
866 	if (ret != 0)
867 		return -EIO;
868 
869 	msleep_interruptible(200);
870 
871 	req = 0xC0;
872 	value = 1; /*high */
873 	index = 3;
874 	blen = 0;
875 
876 	ret = az6027_usb_out_op(adap->dev, req, value, index, NULL, blen);
877 	if (ret != 0)
878 		return -EIO;
879 
880 	msleep_interruptible(200);
881 	return 0;
882 }
883 
884 static int az6027_frontend_tsbypass(struct dvb_usb_adapter *adap, int onoff)
885 {
886 	int ret;
887 	u8 req;
888 	u16 value;
889 	u16 index;
890 	int blen;
891 
892 	/* TS passthrough */
893 	req = 0xC7;
894 	value = onoff;
895 	index = 0;
896 	blen = 0;
897 
898 	ret = az6027_usb_out_op(adap->dev, req, value, index, NULL, blen);
899 	if (ret != 0)
900 		return -EIO;
901 
902 	return 0;
903 }
904 
905 static int az6027_frontend_attach(struct dvb_usb_adapter *adap)
906 {
907 
908 	az6027_frontend_poweron(adap);
909 	az6027_frontend_reset(adap);
910 
911 	deb_info("adap = %p, dev = %p\n", adap, adap->dev);
912 	adap->fe_adap[0].fe = stb0899_attach(&az6027_stb0899_config, &adap->dev->i2c_adap);
913 
914 	if (adap->fe_adap[0].fe) {
915 		deb_info("found STB0899 DVB-S/DVB-S2 frontend @0x%02x", az6027_stb0899_config.demod_address);
916 		if (stb6100_attach(adap->fe_adap[0].fe, &az6027_stb6100_config, &adap->dev->i2c_adap)) {
917 			deb_info("found STB6100 DVB-S/DVB-S2 frontend @0x%02x", az6027_stb6100_config.tuner_address);
918 			adap->fe_adap[0].fe->ops.set_voltage = az6027_set_voltage;
919 			az6027_ci_init(adap);
920 		} else {
921 			adap->fe_adap[0].fe = NULL;
922 		}
923 	} else
924 		warn("no front-end attached\n");
925 
926 	az6027_frontend_tsbypass(adap, 0);
927 
928 	return 0;
929 }
930 
931 static struct dvb_usb_device_properties az6027_properties;
932 
933 static void az6027_usb_disconnect(struct usb_interface *intf)
934 {
935 	struct dvb_usb_device *d = usb_get_intfdata(intf);
936 	az6027_ci_uninit(d);
937 	dvb_usb_device_exit(intf);
938 }
939 
940 
941 static int az6027_usb_probe(struct usb_interface *intf,
942 			    const struct usb_device_id *id)
943 {
944 	return dvb_usb_device_init(intf,
945 				   &az6027_properties,
946 				   THIS_MODULE,
947 				   NULL,
948 				   adapter_nr);
949 }
950 
951 /* I2C */
952 static int az6027_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num)
953 {
954 	struct dvb_usb_device *d = i2c_get_adapdata(adap);
955 	int i = 0, j = 0, len = 0;
956 	u16 index;
957 	u16 value;
958 	int length;
959 	u8 req;
960 	u8 *data;
961 
962 	data = kmalloc(256, GFP_KERNEL);
963 	if (!data)
964 		return -ENOMEM;
965 
966 	if (mutex_lock_interruptible(&d->i2c_mutex) < 0) {
967 		kfree(data);
968 		return -EAGAIN;
969 	}
970 
971 	if (num > 2)
972 		warn("more than 2 i2c messages at a time is not handled yet. TODO.");
973 
974 	for (i = 0; i < num; i++) {
975 
976 		if (msg[i].addr == 0x99) {
977 			req = 0xBE;
978 			index = 0;
979 			value = msg[i].buf[0] & 0x00ff;
980 			length = 1;
981 			az6027_usb_out_op(d, req, value, index, data, length);
982 		}
983 
984 		if (msg[i].addr == 0xd0) {
985 			/* write/read request */
986 			if (i + 1 < num && (msg[i + 1].flags & I2C_M_RD)) {
987 				req = 0xB9;
988 				index = (((msg[i].buf[0] << 8) & 0xff00) | (msg[i].buf[1] & 0x00ff));
989 				value = msg[i].addr + (msg[i].len << 8);
990 				length = msg[i + 1].len + 6;
991 				az6027_usb_in_op(d, req, value, index, data, length);
992 				len = msg[i + 1].len;
993 				for (j = 0; j < len; j++)
994 					msg[i + 1].buf[j] = data[j + 5];
995 
996 				i++;
997 			} else {
998 
999 				/* demod 16bit addr */
1000 				req = 0xBD;
1001 				index = (((msg[i].buf[0] << 8) & 0xff00) | (msg[i].buf[1] & 0x00ff));
1002 				value = msg[i].addr + (2 << 8);
1003 				length = msg[i].len - 2;
1004 				len = msg[i].len - 2;
1005 				for (j = 0; j < len; j++)
1006 					data[j] = msg[i].buf[j + 2];
1007 				az6027_usb_out_op(d, req, value, index, data, length);
1008 			}
1009 		}
1010 
1011 		if (msg[i].addr == 0xc0) {
1012 			if (msg[i].flags & I2C_M_RD) {
1013 
1014 				req = 0xB9;
1015 				index = 0x0;
1016 				value = msg[i].addr;
1017 				length = msg[i].len + 6;
1018 				az6027_usb_in_op(d, req, value, index, data, length);
1019 				len = msg[i].len;
1020 				for (j = 0; j < len; j++)
1021 					msg[i].buf[j] = data[j + 5];
1022 
1023 			} else {
1024 
1025 				req = 0xBD;
1026 				index = msg[i].buf[0] & 0x00FF;
1027 				value = msg[i].addr + (1 << 8);
1028 				length = msg[i].len - 1;
1029 				len = msg[i].len - 1;
1030 
1031 				for (j = 0; j < len; j++)
1032 					data[j] = msg[i].buf[j + 1];
1033 
1034 				az6027_usb_out_op(d, req, value, index, data, length);
1035 			}
1036 		}
1037 	}
1038 	mutex_unlock(&d->i2c_mutex);
1039 	kfree(data);
1040 
1041 	return i;
1042 }
1043 
1044 
1045 static u32 az6027_i2c_func(struct i2c_adapter *adapter)
1046 {
1047 	return I2C_FUNC_I2C;
1048 }
1049 
1050 static struct i2c_algorithm az6027_i2c_algo = {
1051 	.master_xfer   = az6027_i2c_xfer,
1052 	.functionality = az6027_i2c_func,
1053 };
1054 
1055 static int az6027_identify_state(struct usb_device *udev,
1056 				 struct dvb_usb_device_properties *props,
1057 				 struct dvb_usb_device_description **desc,
1058 				 int *cold)
1059 {
1060 	u8 *b;
1061 	s16 ret;
1062 
1063 	b = kmalloc(16, GFP_KERNEL);
1064 	if (!b)
1065 		return -ENOMEM;
1066 
1067 	ret = usb_control_msg(udev,
1068 				  usb_rcvctrlpipe(udev, 0),
1069 				  0xb7,
1070 				  USB_TYPE_VENDOR | USB_DIR_IN,
1071 				  6,
1072 				  0,
1073 				  b,
1074 				  6,
1075 				  USB_CTRL_GET_TIMEOUT);
1076 
1077 	*cold = ret <= 0;
1078 	kfree(b);
1079 	deb_info("cold: %d\n", *cold);
1080 	return 0;
1081 }
1082 
1083 
1084 static struct usb_device_id az6027_usb_table[] = {
1085 	{ USB_DEVICE(USB_VID_AZUREWAVE, USB_PID_AZUREWAVE_AZ6027) },
1086 	{ USB_DEVICE(USB_VID_TERRATEC,  USB_PID_TERRATEC_DVBS2CI_V1) },
1087 	{ USB_DEVICE(USB_VID_TERRATEC,  USB_PID_TERRATEC_DVBS2CI_V2) },
1088 	{ USB_DEVICE(USB_VID_TECHNISAT, USB_PID_TECHNISAT_USB2_HDCI_V1) },
1089 	{ USB_DEVICE(USB_VID_TECHNISAT, USB_PID_TECHNISAT_USB2_HDCI_V2) },
1090 	{ USB_DEVICE(USB_VID_ELGATO, USB_PID_ELGATO_EYETV_SAT) },
1091 	{ },
1092 };
1093 
1094 MODULE_DEVICE_TABLE(usb, az6027_usb_table);
1095 
1096 static struct dvb_usb_device_properties az6027_properties = {
1097 	.caps = DVB_USB_IS_AN_I2C_ADAPTER,
1098 	.usb_ctrl = CYPRESS_FX2,
1099 	.firmware            = "dvb-usb-az6027-03.fw",
1100 	.no_reconnect        = 1,
1101 
1102 	.size_of_priv     = sizeof(struct az6027_device_state),
1103 	.identify_state		= az6027_identify_state,
1104 	.num_adapters = 1,
1105 	.adapter = {
1106 		{
1107 		.num_frontends = 1,
1108 		.fe = {{
1109 			.streaming_ctrl   = az6027_streaming_ctrl,
1110 			.frontend_attach  = az6027_frontend_attach,
1111 
1112 			/* parameter for the MPEG2-data transfer */
1113 			.stream = {
1114 				.type = USB_BULK,
1115 				.count = 10,
1116 				.endpoint = 0x02,
1117 				.u = {
1118 					.bulk = {
1119 						.buffersize = 4096,
1120 					}
1121 				}
1122 			},
1123 		}},
1124 		}
1125 	},
1126 /*
1127 	.power_ctrl       = az6027_power_ctrl,
1128 	.read_mac_address = az6027_read_mac_addr,
1129  */
1130 	.rc.legacy = {
1131 		.rc_map_table     = rc_map_az6027_table,
1132 		.rc_map_size      = ARRAY_SIZE(rc_map_az6027_table),
1133 		.rc_interval      = 400,
1134 		.rc_query         = az6027_rc_query,
1135 	},
1136 
1137 	.i2c_algo         = &az6027_i2c_algo,
1138 
1139 	.num_device_descs = 6,
1140 	.devices = {
1141 		{
1142 			.name = "AZUREWAVE DVB-S/S2 USB2.0 (AZ6027)",
1143 			.cold_ids = { &az6027_usb_table[0], NULL },
1144 			.warm_ids = { NULL },
1145 		}, {
1146 			.name = "TERRATEC S7",
1147 			.cold_ids = { &az6027_usb_table[1], NULL },
1148 			.warm_ids = { NULL },
1149 		}, {
1150 			.name = "TERRATEC S7 MKII",
1151 			.cold_ids = { &az6027_usb_table[2], NULL },
1152 			.warm_ids = { NULL },
1153 		}, {
1154 			.name = "Technisat SkyStar USB 2 HD CI",
1155 			.cold_ids = { &az6027_usb_table[3], NULL },
1156 			.warm_ids = { NULL },
1157 		}, {
1158 			.name = "Technisat SkyStar USB 2 HD CI",
1159 			.cold_ids = { &az6027_usb_table[4], NULL },
1160 			.warm_ids = { NULL },
1161 		}, {
1162 			.name = "Elgato EyeTV Sat",
1163 			.cold_ids = { &az6027_usb_table[5], NULL },
1164 			.warm_ids = { NULL },
1165 		},
1166 		{ NULL },
1167 	}
1168 };
1169 
1170 /* usb specific object needed to register this driver with the usb subsystem */
1171 static struct usb_driver az6027_usb_driver = {
1172 	.name		= "dvb_usb_az6027",
1173 	.probe 		= az6027_usb_probe,
1174 	.disconnect 	= az6027_usb_disconnect,
1175 	.id_table 	= az6027_usb_table,
1176 };
1177 
1178 module_usb_driver(az6027_usb_driver);
1179 
1180 MODULE_AUTHOR("Adams Xu <Adams.xu@azwave.com.cn>");
1181 MODULE_DESCRIPTION("Driver for AZUREWAVE DVB-S/S2 USB2.0 (AZ6027)");
1182 MODULE_VERSION("1.0");
1183 MODULE_LICENSE("GPL");
1184